1 /* 2 * JFFS2 -- Journalling Flash File System, Version 2. 3 * 4 * Copyright © 2006 NEC Corporation 5 * 6 * Created by KaiGai Kohei <kaigai@ak.jp.nec.com> 7 * 8 * For licensing information, see the file 'LICENCE' in this directory. 9 * 10 */ 11 12 #include <linux/kernel.h> 13 #include <linux/fs.h> 14 #include <linux/jffs2.h> 15 #include <linux/xattr.h> 16 #include <linux/mtd/mtd.h> 17 #include "nodelist.h" 18 19 static int jffs2_user_getxattr(const struct xattr_handler *handler, 20 struct dentry *dentry, const char *name, 21 void *buffer, size_t size) 22 { 23 if (!strcmp(name, "")) 24 return -EINVAL; 25 return do_jffs2_getxattr(d_inode(dentry), JFFS2_XPREFIX_USER, 26 name, buffer, size); 27 } 28 29 static int jffs2_user_setxattr(const struct xattr_handler *handler, 30 struct dentry *dentry, const char *name, 31 const void *buffer, size_t size, int flags) 32 { 33 if (!strcmp(name, "")) 34 return -EINVAL; 35 return do_jffs2_setxattr(d_inode(dentry), JFFS2_XPREFIX_USER, 36 name, buffer, size, flags); 37 } 38 39 static size_t jffs2_user_listxattr(const struct xattr_handler *handler, 40 struct dentry *dentry, char *list, 41 size_t list_size, const char *name, 42 size_t name_len) 43 { 44 size_t retlen = XATTR_USER_PREFIX_LEN + name_len + 1; 45 46 if (list && retlen <= list_size) { 47 strcpy(list, XATTR_USER_PREFIX); 48 strcpy(list + XATTR_USER_PREFIX_LEN, name); 49 } 50 51 return retlen; 52 } 53 54 const struct xattr_handler jffs2_user_xattr_handler = { 55 .prefix = XATTR_USER_PREFIX, 56 .list = jffs2_user_listxattr, 57 .set = jffs2_user_setxattr, 58 .get = jffs2_user_getxattr 59 }; 60