1 files changed, 51 insertions, 0 deletions

diff --git a/fs/jffs2/xattr_trusted.c b/fs/jffs2/xattr_trusted.c
new file mode 100644
index 000000000000..a018c9c31a60
--- /dev/null
+++ b/fs/jffs2/xattr_trusted.c
@@ -0,0 +1,51 @@
+/*-------------------------------------------------------------------------*
+ *  File: fs/jffs2/xattr_trusted.c
+ *  XATTR support on JFFS2 FileSystem
+ *
+ *  Implemented by KaiGai Kohei <kaigai@ak.jp.nec.com>
+ *  Copyright (C) 2006 NEC Corporation
+ *
+ *  For licensing information, see the file 'LICENCE' in the jffs2 directory.
+ *-------------------------------------------------------------------------*/
+#include <linux/kernel.h>
+#include <linux/fs.h>
+#include <linux/jffs2.h>
+#include <linux/xattr.h>
+#include <linux/mtd/mtd.h>
+#include "nodelist.h"
+
+static int jffs2_trusted_getxattr(struct inode *inode, const char *name,
+                                  void *buffer, size_t size)
+{
+        if (!strcmp(name, ""))
+                return -EINVAL;
+        return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size);
+}
+
+static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer,
+                                  size_t size, int flags)
+{
+        if (!strcmp(name, ""))
+                return -EINVAL;
+        return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags);
+}
+
+static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size,
+                                      const char *name, size_t name_len)
+{
+        size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1;
+
+        if (list && retlen<=list_size) {
+                strcpy(list, XATTR_TRUSTED_PREFIX);
+                strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name);
+        }
+
+        return retlen;
+}
+
+struct xattr_handler jffs2_trusted_xattr_handler = {
+        .prefix = XATTR_TRUSTED_PREFIX,
+        .list = jffs2_trusted_listxattr,
+        .set = jffs2_trusted_setxattr,
+        .get = jffs2_trusted_getxattr
+};