[fireball] 43516: [fastfat_new] - Implement FatiOpenExistingDir.

Author: fireball
Date: Fri Oct 16 19:10:12 2009
New Revision: 43516

URL: http://svn.reactos.org/svn/reactos?rev=43516&view=rev
Log:
[fastfat_new]
- Implement FatiOpenExistingDir.

Modified:
    trunk/reactos/drivers/filesystems/fastfat_new/create.c
    trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h

Modified: trunk/reactos/drivers/filesystems/fastfat_new/create.c
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfat...
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/create.c [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/create.c [iso-8859-1] Fri Oct 16 19:10:12 2009
@@ -89,12 +89,60 @@
                      IN BOOLEAN DeleteOnClose)
 {
     IO_STATUS_BLOCK Iosb = {{0}};
-
-    DPRINT1("Opening directory\n");
-
-    UNIMPLEMENTED;
-
-    Iosb.Status = STATUS_NOT_IMPLEMENTED;
+    OEM_STRING AnsiName;
+    CHAR AnsiNameBuf[512];
+    PFCB Fcb;
+    NTSTATUS Status;
+    FF_FILE *FileHandle;
+
+    /* Only open is permitted */
+    if (CreateDisposition != FILE_OPEN &&
+        CreateDisposition != FILE_OPEN_IF)
+    {
+        Iosb.Status = STATUS_OBJECT_NAME_COLLISION;
+        return Iosb;
+    }
+
+    // TODO: Check dir access
+
+    /* Convert the name to ANSI */
+    AnsiName.Buffer = AnsiNameBuf;
+    AnsiName.Length = 0;
+    AnsiName.MaximumLength = sizeof(AnsiNameBuf);
+    RtlZeroMemory(AnsiNameBuf, sizeof(AnsiNameBuf));
+    Status = RtlUpcaseUnicodeStringToCountedOemString(&AnsiName, &FileObject->FileName, FALSE);
+    if (!NT_SUCCESS(Status))
+    {
+        ASSERT(FALSE);
+    }
+
+    /* Open the dir with FullFAT */
+    FileHandle = FF_Open(Vcb->Ioman, AnsiName.Buffer, FF_MODE_DIR, NULL);
+
+    if (!FileHandle)
+    {
+        Iosb.Status = STATUS_OBJECT_NAME_NOT_FOUND; // FIXME: A shortcut for now
+        return Iosb;
+    }
+
+    /* Create a new DCB for this directory */
+    Fcb = FatCreateDcb(IrpContext, Vcb, ParentDcb);
+    Fcb->FatHandle = FileHandle;
+
+    /* Set share access */
+    IoSetShareAccess(*DesiredAccess, ShareAccess, FileObject, &Fcb->ShareAccess);
+
+    /* Set context and section object pointers */
+    FatSetFileObject(FileObject,
+                     UserDirectoryOpen,
+                     Fcb,
+                     FatCreateCcb());
+
+    Iosb.Status = STATUS_SUCCESS;
+    Iosb.Information = FILE_OPENED;
+
+    DPRINT1("Successfully opened dir %s\n", AnsiNameBuf);
+
     return Iosb;
 }

Modified: trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h
URL: http://svn.reactos.org/svn/reactos/trunk/reactos/drivers/filesystems/fastfat...
==============================================================================
--- trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h [iso-8859-1] (original)
+++ trunk/reactos/drivers/filesystems/fastfat_new/fatstruc.h [iso-8859-1] Fri Oct 16 19:10:12 2009
@@ -277,6 +277,8 @@
     ULONG State;
     /* Fcb condition */
     FCB_CONDITION Condition;
+    /* Share access */
+    SHARE_ACCESS ShareAccess;
     /* Mcb mapping Vbo->Lbo */
     LARGE_MCB Mcb;
     ULONG FirstCluster;