103 lines
3.4 KiB
C
103 lines
3.4 KiB
C
/*
|
|
* 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__
|
|
|
|
/*
|
|
* Access Control Lists
|
|
*/
|
|
typedef __uint16_t xfs_acl_perm_t;
|
|
typedef __int32_t xfs_acl_type_t;
|
|
typedef __int32_t xfs_acl_tag_t;
|
|
typedef __int32_t xfs_acl_id_t;
|
|
|
|
#define XFS_ACL_MAX_ENTRIES 25
|
|
#define XFS_ACL_NOT_PRESENT (-1)
|
|
|
|
typedef struct xfs_acl_entry {
|
|
xfs_acl_tag_t ae_tag;
|
|
xfs_acl_id_t ae_id;
|
|
xfs_acl_perm_t ae_perm;
|
|
} xfs_acl_entry_t;
|
|
|
|
typedef struct xfs_acl {
|
|
__int32_t acl_cnt;
|
|
xfs_acl_entry_t acl_entry[XFS_ACL_MAX_ENTRIES];
|
|
} xfs_acl_t;
|
|
|
|
/* On-disk XFS extended attribute names */
|
|
#define SGI_ACL_FILE "SGI_ACL_FILE"
|
|
#define SGI_ACL_DEFAULT "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
|
|
|
|
struct vattr;
|
|
struct vnode;
|
|
struct xfs_inode;
|
|
|
|
extern struct kmem_zone *xfs_acl_zone;
|
|
#define xfs_acl_zone_init(zone, name) \
|
|
(zone) = kmem_zone_init(sizeof(xfs_acl_t), (name))
|
|
#define xfs_acl_zone_destroy(zone) kmem_zone_destroy(zone)
|
|
|
|
extern int xfs_acl_inherit(struct vnode *, struct vattr *, xfs_acl_t *);
|
|
extern int xfs_acl_iaccess(struct xfs_inode *, mode_t, cred_t *);
|
|
extern int xfs_acl_vtoacl(struct vnode *, xfs_acl_t *, xfs_acl_t *);
|
|
extern int xfs_acl_vhasacl_access(struct vnode *);
|
|
extern int xfs_acl_vhasacl_default(struct vnode *);
|
|
extern int xfs_acl_vset(struct vnode *, void *, size_t, int);
|
|
extern int xfs_acl_vget(struct vnode *, void *, size_t, int);
|
|
extern int xfs_acl_vremove(struct vnode *vp, int);
|
|
|
|
#define _ACL_TYPE_ACCESS 1
|
|
#define _ACL_TYPE_DEFAULT 2
|
|
#define _ACL_PERM_INVALID(perm) ((perm) & ~(ACL_READ|ACL_WRITE|ACL_EXECUTE))
|
|
|
|
#define _ACL_INHERIT(c,v,d) (xfs_acl_inherit(c,v,d))
|
|
#define _ACL_GET_ACCESS(pv,pa) (xfs_acl_vtoacl(pv,pa,NULL) == 0)
|
|
#define _ACL_GET_DEFAULT(pv,pd) (xfs_acl_vtoacl(pv,NULL,pd) == 0)
|
|
#define _ACL_ACCESS_EXISTS xfs_acl_vhasacl_access
|
|
#define _ACL_DEFAULT_EXISTS xfs_acl_vhasacl_default
|
|
#define _ACL_XFS_IACCESS(i,m,c) (XFS_IFORK_Q(i) ? xfs_acl_iaccess(i,m,c) : -1)
|
|
|
|
#define _ACL_ALLOC(a) ((a) = kmem_zone_alloc(xfs_acl_zone, KM_SLEEP))
|
|
#define _ACL_FREE(a) ((a)? kmem_zone_free(xfs_acl_zone, (a)):(void)0)
|
|
|
|
#else
|
|
#define xfs_acl_zone_init(zone,name)
|
|
#define xfs_acl_zone_destroy(zone)
|
|
#define xfs_acl_vset(v,p,sz,t) (-EOPNOTSUPP)
|
|
#define xfs_acl_vget(v,p,sz,t) (-EOPNOTSUPP)
|
|
#define xfs_acl_vremove(v,t) (-EOPNOTSUPP)
|
|
#define xfs_acl_vhasacl_access(v) (0)
|
|
#define xfs_acl_vhasacl_default(v) (0)
|
|
#define _ACL_ALLOC(a) (1) /* successfully allocate nothing */
|
|
#define _ACL_FREE(a) ((void)0)
|
|
#define _ACL_INHERIT(c,v,d) (0)
|
|
#define _ACL_GET_ACCESS(pv,pa) (0)
|
|
#define _ACL_GET_DEFAULT(pv,pd) (0)
|
|
#define _ACL_ACCESS_EXISTS (NULL)
|
|
#define _ACL_DEFAULT_EXISTS (NULL)
|
|
#define _ACL_XFS_IACCESS(i,m,c) (-1)
|
|
#endif
|
|
|
|
#endif /* __XFS_ACL_H__ */
|