diff options
Diffstat (limited to 'fs/xfs/xfs_acl.h')
| -rw-r--r-- | fs/xfs/xfs_acl.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h new file mode 100644 index 00000000..39632d94 --- /dev/null +++ b/fs/xfs/xfs_acl.h @@ -0,0 +1,63 @@ +/* + * 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__ */ |