fs/btrfs/xattr.h

   1 /*
   2  * Copyright (C) 2007 Red Hat.  All rights reserved.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public
   6  * License v2 as published by the Free Software Foundation.
   7  *
   8  * This program is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU General Public
  14  * License along with this program; if not, write to the
  15  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  16  * Boston, MA 021110-1307, USA.
  17  */
  18
  19 #ifndef __XATTR__
  20 #define __XATTR__
  21
  22 #include <linux/xattr.h>
  23 #include "ctree.h"
  24
  25 /* Name indexes */
  26 enum {
  27         BTRFS_XATTR_INDEX_USER,
  28         BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS,
  29         BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT,
  30         BTRFS_XATTR_INDEX_TRUSTED,
  31         BTRFS_XATTR_INDEX_SECURITY,
  32         BTRFS_XATTR_INDEX_SYSTEM,
  33         BTRFS_XATTR_INDEX_END,
  34 };
  35
  36 extern struct xattr_handler btrfs_xattr_user_handler;
  37 extern struct xattr_handler btrfs_xattr_trusted_handler;
  38 extern struct xattr_handler btrfs_xattr_acl_access_handler;
  39 extern struct xattr_handler btrfs_xattr_acl_default_handler;
  40 extern struct xattr_handler btrfs_xattr_security_handler;
  41 extern struct xattr_handler btrfs_xattr_system_handler;
  42
  43 extern struct xattr_handler *btrfs_xattr_handlers[];
  44
  45 ssize_t btrfs_xattr_get(struct inode *inode, int name_index, const char *name,
  46                         void *buffer, size_t size);
  47 int btrfs_xattr_set(struct inode *inode, int name_index, const char *name,
  48                         const void *value, size_t size, int flags);
  49
  50 /*
  51  * the only reason this is public is for acl.c.  There may be a point where
  52  * acl.c doesn't need it, and if thats the case we need to remove it and make
  53  * it static in xattr.c
  54  */
  55 size_t btrfs_xattr_generic_list(struct inode *inode, char *list,
  56                                 size_t list_size, const char *name,
  57                                 size_t name_len);
  58 #endif /* __XATTR__ */