1 files changed, 116 insertions, 0 deletions

diff --git a/fs/xfs/xfs_acl.h b/fs/xfs/xfs_acl.h
new file mode 100644
index 000000000000..0363eb46d357
--- /dev/null
+++ b/fs/xfs/xfs_acl.h
@@ -0,0 +1,116 @@
+/*
+ * Copyright (c) 2001-2004 Silicon Graphics, Inc.  All Rights Reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of version 2 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.
+ *
+ * Further, this software is distributed without any warranty that it is
+ * free of the rightful claim of any third person regarding infringement
+ * or the like.  Any license provided herein, whether implied or
+ * otherwise, applies only to this software file.  Patent licenses, if
+ * any, provided herein do not apply to combinations of this program with
+ * other software, or any other product whatsoever.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston MA 02111-1307, USA.
+ *
+ * Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
+ * Mountain View, CA  94043, or:
+ *
+ * http://www.sgi.com
+ *
+ * For further information regarding this notice, see:
+ *
+ * http://oss.sgi.com/projects/GenInfo/SGIGPLNoticeExplan/
+ */
+#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_cache_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__ */