fs/btrfs/acl.c

   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 #include <linux/fs.h>
  20 #include <linux/string.h>
  21 #include <linux/xattr.h>
  22 #include <linux/posix_acl_xattr.h>
  23 #include "ctree.h"
  24 #include "xattr.h"
  25
  26 /*
  27  * FIXME: At this point this is all place holder stuff, we just return
  28  * -EOPNOTSUPP so cp won't complain when it tries to copy over a file with an
  29  *  acl on it.
  30  */
  31
  32 static int btrfs_xattr_acl_access_get(struct inode *inode, const char *name,
  33                                       void *value, size_t size)
  34 {
  35         /*
  36         return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name,
  37                                value, size);
  38         */
  39         return -EOPNOTSUPP;
  40 }
  41
  42 static int btrfs_xattr_acl_access_set(struct inode *inode, const char *name,
  43                                       const void *value, size_t size, int flags)
  44 {
  45         /*
  46         return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS, name,
  47                                value, size, flags);
  48         */
  49         return -EOPNOTSUPP;
  50 }
  51
  52 static int btrfs_xattr_acl_default_get(struct inode *inode, const char *name,
  53                                        void *value, size_t size)
  54 {
  55         /*
  56         return btrfs_xattr_get(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT,
  57                                name, value, size);
  58         */
  59         return -EOPNOTSUPP;
  60 }
  61
  62 static int btrfs_xattr_acl_default_set(struct inode *inode, const char *name,
  63                                        const void *value, size_t size, int flags)
  64 {
  65         /*
  66         return btrfs_xattr_set(inode, BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT,
  67                                name, value, size, flags);
  68         */
  69         return -EOPNOTSUPP;
  70 }
  71
  72 struct xattr_handler btrfs_xattr_acl_default_handler = {
  73         .prefix = POSIX_ACL_XATTR_DEFAULT,
  74         .list   = btrfs_xattr_generic_list,
  75         .get    = btrfs_xattr_acl_default_get,
  76         .set    = btrfs_xattr_acl_default_set,
  77 };
  78
  79 struct xattr_handler btrfs_xattr_acl_access_handler = {
  80         .prefix = POSIX_ACL_XATTR_ACCESS,
  81         .list   = btrfs_xattr_generic_list,
  82         .get    = btrfs_xattr_acl_access_get,
  83         .set    = btrfs_xattr_acl_access_set,
  84 };