1 /* 2 * JFFS2 -- Journalling Flash File System, Version 2. 3 * 4 * Copyright (C) 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 #include <linux/kernel.h> 12 #include <linux/fs.h> 13 #include <linux/jffs2.h> 14 #include <linux/xattr.h> 15 #include <linux/mtd/mtd.h> 16 #include "nodelist.h" 17 18 static int jffs2_trusted_getxattr(struct inode *inode, const char *name, 19 void *buffer, size_t size) 20 { 21 if (!strcmp(name, "")) 22 return -EINVAL; 23 return do_jffs2_getxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size); 24 } 25 26 static int jffs2_trusted_setxattr(struct inode *inode, const char *name, const void *buffer, 27 size_t size, int flags) 28 { 29 if (!strcmp(name, "")) 30 return -EINVAL; 31 return do_jffs2_setxattr(inode, JFFS2_XPREFIX_TRUSTED, name, buffer, size, flags); 32 } 33 34 static size_t jffs2_trusted_listxattr(struct inode *inode, char *list, size_t list_size, 35 const char *name, size_t name_len) 36 { 37 size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1; 38 39 if (list && retlen<=list_size) { 40 strcpy(list, XATTR_TRUSTED_PREFIX); 41 strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name); 42 } 43 44 return retlen; 45 } 46 47 struct xattr_handler jffs2_trusted_xattr_handler = { 48 .prefix = XATTR_TRUSTED_PREFIX, 49 .list = jffs2_trusted_listxattr, 50 .set = jffs2_trusted_setxattr, 51 .get = jffs2_trusted_getxattr 52 }; 53