cifs xattr support part 1

fs/cifs/Makefile

@@ -3,4 +3,4 @@
 #
 obj-$(CONFIG_CIFS) += cifs.o
 
-cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o
+cifs-objs := cifsfs.o cifssmb.o cifs_debug.o connect.o dir.o file.o inode.o link.o misc.o netmisc.o smbdes.o smbencrypt.o transport.o asn1.o md4.o md5.o cifs_unicode.o nterr.o xattr.o

fs/cifs/cifsfs.h

@@ -88,5 +88,9 @@ extern int cifs_follow_link(struct dentry *direntry, struct nameidata *nd);
 extern int cifs_readlink(struct dentry *direntry, char *buffer, int buflen);
 extern int cifs_symlink(struct inode *inode, struct dentry *direntry,
 			const char *symname);
-
+extern int	cifs_removexattr(struct dentry *, const char *);
+extern int 	cifs_setxattr(struct dentry *, const char *, const void *,
+			 size_t, int);
+extern ssize_t	cifs_getxattr(struct dentry *, const char *, void *, size_t);
+extern ssize_t	cifs_listxattr(struct dentry *, char *, size_t);
 #endif				/* _CIFSSMB_H */

fs/cifs/xattr.c

+/*
+ *   fs/cifs/xattr.c
+ *
+ *   Copyright (c) International Business Machines  Corp., 2003
+ *   Author(s): Steve French (sfrench@us.ibm.com)
+ *
+ *   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
+ */
+
+#include <linux/fs.h>
+
+int cifs_removexattr(struct dentry * direntry, const char * name)
+{
+        int rc = -EOPNOTSUPP;
+        return rc;
+}
+
+int cifs_setxattr(struct dentry * direntry, const char * name,
+        const void * value, size_t size, int flags)
+{
+        int rc = -EOPNOTSUPP;
+        return rc;
+}
+
+ssize_t cifs_getxattr(struct dentry * direntry, const char * name,
+         void * value, size_t size)
+{
+        ssize_t rc = -EOPNOTSUPP;
+        return rc;
+}
+
+ssize_t cifs_listxattr(struct dentry * direntry, char * ea_data, size_t ea_size)
+{
+        ssize_t rc = -EOPNOTSUPP;
+
+	/* return dosattributes as pseudo xattr */
+	/* return alt name if available as pseudo attr */
+
+	/* if proc/fs/cifs/streamstoxattr is set then
+		search server for EAs or streams to 
+		returns as xattrs */
+
+        return rc;
+}