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/*
* Copyright (c) 2001-2005 Silicon Graphics, Inc.
* All Rights Reserved.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it would be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __XFS_ACL_H__
#define __XFS_ACL_H__
struct inode;
struct posix_acl;
struct xfs_inode;
#define XFS_ACL_MAX_ENTRIES 25
#define XFS_ACL_NOT_PRESENT (-1)
/* On-disk XFS access control list structure */
struct xfs_acl {
__be32 acl_cnt;
struct xfs_acl_entry {
__be32 ae_tag;
__be32 ae_id;
__be16 ae_perm;
} acl_entry[XFS_ACL_MAX_ENTRIES];
};
/* On-disk XFS extended attribute names */
#define SGI_ACL_FILE (unsigned char *)"SGI_ACL_FILE"
#define SGI_ACL_DEFAULT (unsigned char *)"SGI_ACL_DEFAULT"
#define SGI_ACL_FILE_SIZE (sizeof(SGI_ACL_FILE)-1)
#define SGI_ACL_DEFAULT_SIZE (sizeof(SGI_ACL_DEFAULT)-1)
#ifdef CONFIG_XFS_POSIX_ACL
extern struct posix_acl *xfs_get_acl(struct inode *inode, int type);
extern int xfs_inherit_acl(struct inode *inode, struct posix_acl *default_acl);
extern int xfs_acl_chmod(struct inode *inode);
extern int posix_acl_access_exists(struct inode *inode);
extern int posix_acl_default_exists(struct inode *inode);
extern const struct xattr_handler xfs_xattr_acl_access_handler;
extern const struct xattr_handler xfs_xattr_acl_default_handler;
#else
static inline struct posix_acl *xfs_get_acl(struct inode *inode, int type)
{
return NULL;
}
# define xfs_inherit_acl(inode, default_acl) 0
# define xfs_acl_chmod(inode) 0
# define posix_acl_access_exists(inode) 0
# define posix_acl_default_exists(inode) 0
#endif /* CONFIG_XFS_POSIX_ACL */
#endif /* __XFS_ACL_H__ */
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