[fastfat_new]

[reactos.git] / reactos / drivers / filesystems / fastfat_new / dir.c

diff --git a/reactos/drivers/filesystems/fastfat_new/dir.c b/reactos/drivers/filesystems/fastfat_new/dir.c
index ce858c7..0c3e8e7 100644 (file)
--- a/reactos/drivers/filesystems/fastfat_new/dir.c
+++ b/reactos/drivers/filesystems/fastfat_new/dir.c
@@ -21,4 +21,148 @@ FatDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp)
     return STATUS_NOT_IMPLEMENTED;
 }
 
+VOID
+NTAPI
+FatCreateRootDcb(IN PFAT_IRP_CONTEXT IrpContext,
+                 IN PVCB Vcb)
+{
+    PFCB Dcb;
+
+    /* Make sure it's not already created */
+    ASSERT(!Vcb->RootDcb);
+
+    /* Allocate the DCB */
+    Dcb = FsRtlAllocatePoolWithTag(NonPagedPool,
+                                   sizeof(FCB),
+                                   TAG_FCB);
+
+    /* Zero it */
+    RtlZeroMemory(Dcb, sizeof(FCB));
+
+    /* Assign it to the VCB */
+    Vcb->RootDcb = Dcb;
+
+    /* Set its header */
+    Dcb->Header.NodeTypeCode = FAT_NTC_ROOT_DCB;
+    Dcb->Header.NodeByteSize = sizeof(FCB);
+
+    /* FCB is in a good condition */
+    Dcb->Condition = FcbGood;
+
+    /* Initialize FCB's resource */
+    Dcb->Header.Resource = &Dcb->Resource;
+    ExInitializeResourceLite(&Dcb->Resource);
+
+    /* Initialize Paging Io resource*/
+    Dcb->Header.PagingIoResource = &Dcb->PagingIoResource;
+    ExInitializeResourceLite(&Dcb->PagingIoResource);
+
+    /* Initialize a list of parent DCBs*/
+    InitializeListHead(&Dcb->ParentDcbLinks);
+
+    /* Set VCB */
+    Dcb->Vcb = Vcb;
+
+    /* Initialize parent's DCB list */
+    InitializeListHead(&Dcb->Dcb.ParentDcbList);
+
+    /* Initialize the full file name */
+    Dcb->FullFileName.Buffer = L"\\";
+    Dcb->FullFileName.Length = 1 * sizeof(WCHAR);
+    Dcb->FullFileName.MaximumLength = 2 * sizeof(WCHAR);
+
+    Dcb->FileName.Name.Ansi.Buffer = "\\";
+    Dcb->FileName.Name.Ansi.Length = 1;
+    Dcb->FileName.Name.Ansi.MaximumLength = 2 * sizeof(CHAR);
+
+    /* Fill dirent attribute byte copy */
+    Dcb->DirentFatFlags = FILE_ATTRIBUTE_DIRECTORY;
+
+    /* Initialize advanced FCB header fields */
+    ExInitializeFastMutex(&Dcb->HeaderMutex);
+    FsRtlSetupAdvancedHeader(&Dcb->Header, &Dcb->HeaderMutex);
+
+    /* Initialize MCB */
+    FsRtlInitializeLargeMcb(&Dcb->Mcb, NonPagedPool);
+
+    /* Set up first cluster field depending on FAT type */
+    if (TRUE/*FatIsFat32(Vcb)*/)
+    {
+        /* First cluster is really the first cluster of this volume */
+        Dcb->FirstClusterOfFile = Vcb->Bpb.RootDirFirstCluster;
+
+        /* Calculate size of FAT32 root dir */
+        Dcb->Header.AllocationSize.LowPart = 0xFFFFFFFF;
+        //FatLookupFileAllocationSize(IrpContext, Dcb);
+        DPRINT1("Calculation of a size of a root dir is missing!\n");
+
+        Dcb->Header.FileSize.QuadPart = Dcb->Header.AllocationSize.QuadPart;
+    }
+    else
+    {
+#if 0
+        /* Add MCB entry */
+        FatAddMcbEntry(Vcb,
+                       &Dcb->Mcb,
+                       0,
+                       FatRootDirectoryLbo(&Vcb->Bpb),
+                       FatRootDirectorySize(&Vcb->Bpb));
+
+        /* Set a real size of the root directory */
+        Dcb->Header.FileSize.QuadPart = FatRootDirectorySize(&Vcb->Bpb);
+        Dcb->Header.AllocationSize.QuadPart = Dcb->Header.FileSize.QuadPart;
+#endif
+        UNIMPLEMENTED;
+    }
+
+    /* Initialize free dirent bitmap */
+    RtlInitializeBitMap(&Dcb->Dcb.FreeBitmap, NULL, 0);
+
+    /* Fill the dirent bitmap */
+    DPRINT1("Filling the free dirent bitmap is missing\n");
+    //FatCheckFreeDirentBitmap( IrpContext, Dcb );
+}
+
+PFCB
+NTAPI
+FatCreateDcb(IN PFAT_IRP_CONTEXT IrpContext,
+             IN PVCB Vcb,
+             IN PFCB ParentDcb)
+{
+    PFCB Fcb;
+
+    /* Allocate it and zero it */
+    Fcb = ExAllocatePoolWithTag(NonPagedPool, sizeof(FCB), TAG_FCB);
+    RtlZeroMemory(Fcb, sizeof(FCB));
+
+    /* Set node types */
+    Fcb->Header.NodeTypeCode = FAT_NTC_DCB;
+    Fcb->Header.NodeByteSize = sizeof(FCB);
+    Fcb->Condition = FcbGood;
+
+    /* Initialize resources */
+    Fcb->Header.Resource = &Fcb->Resource;
+    ExInitializeResourceLite(Fcb->Header.Resource);
+
+    Fcb->Header.PagingIoResource = &Fcb->PagingIoResource;
+    ExInitializeResourceLite(Fcb->Header.PagingIoResource);
+
+    /* Initialize mutexes */
+    Fcb->Header.FastMutex = &Fcb->HeaderMutex;
+    ExInitializeFastMutex(&Fcb->HeaderMutex);
+    FsRtlSetupAdvancedHeader(&Fcb->Header, &Fcb->HeaderMutex);
+
+    /* Insert into parent's DCB list */
+    InsertHeadList(&ParentDcb->Dcb.ParentDcbList, &Fcb->ParentDcbLinks);
+
+    /* Set backlinks */
+    Fcb->ParentFcb = ParentDcb;
+    Fcb->Vcb = Vcb;
+
+    /* Initialize parent dcb list */
+    InitializeListHead(&Fcb->Dcb.ParentDcbList);
+
+    return Fcb;
+}
+
 /* EOF */