X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d7e50217d7adf6e52786a38bcaa4cd698cb9a79e..3e170ce000f1506b7b5d2c5c7faec85ceabb573d:/bsd/miscfs/union/union.h

diff --git a/bsd/miscfs/union/union.h b/bsd/miscfs/union/union.h
index f7ee5f221..eee3e5a87 100644
--- a/bsd/miscfs/union/union.h
+++ b/bsd/miscfs/union/union.h
@@ -1,16 +1,19 @@
 /*
- * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved.
+ * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
  *
- * @APPLE_LICENSE_HEADER_START@
- * 
- * Copyright (c) 1999-2003 Apple Computer, Inc.  All Rights Reserved.
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
  * 
  * This file contains Original Code and/or Modifications of Original Code
  * as defined in and that are subject to the Apple Public Source License
  * Version 2.0 (the 'License'). You may not use this file except in
- * compliance with the License. Please obtain a copy of the License at
- * http://www.opensource.apple.com/apsl/ and read it before using this
- * file.
+ * compliance with the License. The rights granted to you under the License
+ * may not be used to create, or enable the creation or redistribution of,
+ * unlawful or unlicensed copies of an Apple operating system, or to
+ * circumvent, violate, or enable the circumvention or violation of, any
+ * terms of an Apple operating system software license agreement.
+ * 
+ * Please obtain a copy of the License at
+ * http://www.opensource.apple.com/apsl/ and read it before using this file.
  * 
  * The Original Code and all software distributed under the License are
  * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
@@ -20,7 +23,7 @@
  * Please see the License for the specific language governing rights and
  * limitations under the License.
  * 
- * @APPLE_LICENSE_HEADER_END@
+ * @APPLE_OSREFERENCE_LICENSE_HEADER_END@
  */
 /* Copyright (c) 1995 NeXT Computer, Inc. All Rights Reserved */
 /*
@@ -64,99 +67,5 @@
 #ifndef __UNION_UNION_H__
 #define __UNION_UNION_H__
 
-#include  <sys/appleapiopts.h>
-
-#ifdef __APPLE_API_PRIVATE
-struct union_args {
-	char		*target;	/* Target of loopback  */
-	int		mntflags;	/* Options on the mount */
-};
-
-#define UNMNT_ABOVE	0x0001		/* Target appears below mount point */
-#define UNMNT_BELOW	0x0002		/* Target appears below mount point */
-#define UNMNT_REPLACE	0x0003		/* Target replaces mount point */
-#define UNMNT_OPMASK	0x0003
-
-struct union_mount {
-	struct vnode	*um_uppervp;
-	struct vnode	*um_lowervp;
-	struct ucred	*um_cred;	/* Credentials of user calling mount */
-	int		um_cmode;	/* cmask from mount process */
-	int		um_op;		/* Operation mode */
-};
-
-#ifdef KERNEL
-
-/*
- * DEFDIRMODE is the mode bits used to create a shadow directory.
- */
-#define VRWXMODE (VREAD|VWRITE|VEXEC)
-#define VRWMODE (VREAD|VWRITE)
-#define UN_DIRMODE ((VRWXMODE)|(VRWXMODE>>3)|(VRWXMODE>>6))
-#define UN_FILEMODE ((VRWMODE)|(VRWMODE>>3)|(VRWMODE>>6))
-
-/*
- * A cache of vnode references
- */
-struct union_node {
-	LIST_ENTRY(union_node)	un_cache;	/* Hash chain */
-	struct vnode		*un_vnode;	/* Back pointer */
-	struct vnode	        *un_uppervp;	/* overlaying object */
-	struct vnode	        *un_lowervp;	/* underlying object */
-	struct vnode		*un_dirvp;	/* Parent dir of uppervp */
-	struct vnode		*un_pvp;	/* Parent vnode */
-	char			*un_path;	/* saved component name */
-	int			un_hash;	/* saved un_path hash value */
-	int			un_openl;	/* # of opens on lowervp */
-	unsigned int		un_flags;
-	struct vnode		**un_dircache;	/* cached union stack */
-	off_t			un_uppersz;	/* size of upper object */
-	off_t			un_lowersz;	/* size of lower object */
-#if DIAGNOSTIC
-	pid_t			un_pid;
-#endif
-};
-
-#define UN_WANT		0x01
-#define UN_LOCKED	0x02
-#define UN_ULOCK	0x04		/* Upper node is locked */
-#define UN_KLOCK	0x08		/* Keep upper node locked on vput */
-#define UN_CACHED	0x10		/* In union cache */
-
-extern int union_allocvp __P((struct vnode **, struct mount *,
-				struct vnode *, struct vnode *,
-				struct componentname *, struct vnode *,
-				struct vnode *, int));
-extern int union_copyfile __P((struct vnode *, struct vnode *,
-					struct ucred *, struct proc *));
-extern int union_copyup __P((struct union_node *, int, struct ucred *,
-				struct proc *));
-extern int union_dowhiteout __P((struct union_node *, struct ucred *,
-					struct proc *));
-extern int union_mkshadow __P((struct union_mount *, struct vnode *,
-				struct componentname *, struct vnode **));
-extern int union_mkwhiteout __P((struct union_mount *, struct vnode *,
-				struct componentname *, char *));
-extern int union_vn_create __P((struct vnode **, struct union_node *,
-				struct proc *));
-extern int union_cn_close __P((struct vnode *, int, struct ucred *,
-				struct proc *));
-extern void union_removed_upper __P((struct union_node *un));
-extern struct vnode *union_lowervp __P((struct vnode *));
-extern void union_newlower __P((struct union_node *, struct vnode *));
-extern void union_newupper __P((struct union_node *, struct vnode *));
-extern void union_newsize __P((struct vnode *, off_t, off_t));
-
-#define	MOUNTTOUNIONMOUNT(mp) ((struct union_mount *)((mp)->mnt_data))
-#define	VTOUNION(vp) ((struct union_node *)(vp)->v_data)
-#define	UNIONTOV(un) ((un)->un_vnode)
-#define	LOWERVP(vp) (VTOUNION(vp)->un_lowervp)
-#define	UPPERVP(vp) (VTOUNION(vp)->un_uppervp)
-#define OTHERVP(vp) (UPPERVP(vp) ? UPPERVP(vp) : LOWERVP(vp))
-
-extern int (**union_vnodeop_p)(void *);
-extern struct vfsops union_vfsops;
-#endif /* KERNEL */
 
-#endif /* __APPLE_API_PRIVATE */
 #endif /* __UNION_UNION_H__ */