| /* |
| * fs/cifs/export.c |
| * |
| * Copyright (C) International Business Machines Corp., 2007 |
| * Author(s): Steve French (sfrench@us.ibm.com) |
| * |
| * Common Internet FileSystem (CIFS) client |
| * |
| * Operations related to support for exporting files via NFSD |
| * |
| * This library is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU Lesser General Public License as published |
| * by the Free Software Foundation; either version 2.1 of the License, or |
| * (at your option) any later version. |
| * |
| * This library is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See |
| * the GNU Lesser General Public License for more details. |
| * |
| * You should have received a copy of the GNU Lesser General Public License |
| * along with this library; if not, write to the Free Software |
| * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| * See Documentation/filesystems/nfs/exporting.rst |
| * and examples in fs/exportfs |
| * |
| * Since cifs is a network file system, an "fsid" must be included for |
| * any nfs exports file entries which refer to cifs paths. In addition |
| * the cifs mount must be mounted with the "serverino" option (ie use stable |
| * server inode numbers instead of locally generated temporary ones). |
| * Although cifs inodes do not use generation numbers (have generation number |
| * of zero) - the inode number alone should be good enough for simple cases |
| * in which users want to export cifs shares with NFS. The decode and encode |
| * could be improved by using a new routine which expects 64 bit inode numbers |
| * instead of the default 32 bit routines in fs/exportfs |
| * |
| */ |
| |
| #include <linux/fs.h> |
| #include <linux/exportfs.h> |
| #include "cifsglob.h" |
| #include "cifs_debug.h" |
| #include "cifsfs.h" |
| |
| #ifdef CONFIG_CIFS_NFSD_EXPORT |
| static struct dentry *cifs_get_parent(struct dentry *dentry) |
| { |
| /* BB need to add code here eventually to enable export via NFSD */ |
| cifs_dbg(FYI, "get parent for %p\n", dentry); |
| return ERR_PTR(-EACCES); |
| } |
| |
| const struct export_operations cifs_export_ops = { |
| .get_parent = cifs_get_parent, |
| /* Following five export operations are unneeded so far and can default: |
| .get_dentry = |
| .get_name = |
| .find_exported_dentry = |
| .decode_fh = |
| .encode_fs = */ |
| }; |
| |
| #endif /* CONFIG_CIFS_NFSD_EXPORT */ |
| |
