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_trusted_getxattr(struct dentry *dentry, const char *name, 20 void *buffer, size_t size, int type) 21 { 22 if (!strcmp(name, "")) 23 return -EINVAL; 24 return do_jffs2_getxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED, 25 name, buffer, size); 26 } 27 28 static int jffs2_trusted_setxattr(struct dentry *dentry, const char *name, 29 const void *buffer, size_t size, int flags, int type) 30 { 31 if (!strcmp(name, "")) 32 return -EINVAL; 33 return do_jffs2_setxattr(dentry->d_inode, JFFS2_XPREFIX_TRUSTED, 34 name, buffer, size, flags); 35 } 36 37 static size_t jffs2_trusted_listxattr(struct dentry *dentry, char *list, 38 size_t list_size, const char *name, size_t name_len, int type) 39 { 40 size_t retlen = XATTR_TRUSTED_PREFIX_LEN + name_len + 1; 41 42 if (list && retlen<=list_size) { 43 strcpy(list, XATTR_TRUSTED_PREFIX); 44 strcpy(list + XATTR_TRUSTED_PREFIX_LEN, name); 45 } 46 47 return retlen; 48 } 49 50 const struct xattr_handler jffs2_trusted_xattr_handler = { 51 .prefix = XATTR_TRUSTED_PREFIX, 52 .list = jffs2_trusted_listxattr, 53 .set = jffs2_trusted_setxattr, 54 .get = jffs2_trusted_getxattr 55 }; 56