/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* $NetBSD: umap.h,v 1.4 1995/03/29 22:09:57 briggs Exp $ */ /* * Copyright (c) 1992, 1993 * The Regents of the University of California. All rights reserved. * * This code is derived from software donated to Berkeley by * the UCLA Ficus project. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by the University of * California, Berkeley and its contributors. * 4. Neither the name of the University nor the names of its contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * from: @(#)null_vnops.c 1.5 (Berkeley) 7/10/92 * @(#)umap.h 8.3 (Berkeley) 1/21/94 */ #define MAPFILEENTRIES 64 #define GMAPFILEENTRIES 16 #define NOBODY 32767 #define NULLGROUP 65534 struct umap_args { char *target; /* Target of loopback */ int nentries; /* # of entries in user map array */ int gnentries; /* # of entries in group map array */ uid_t (*mapdata)[2]; /* pointer to array of user mappings */ gid_t (*gmapdata)[2]; /* pointer to array of group mappings */ }; struct umap_mount { struct mount *umapm_vfs; struct vnode *umapm_rootvp; /* Reference to root umap_node */ int info_nentries; /* number of uid mappings */ int info_gnentries; /* number of gid mappings */ uid_t info_mapdata[MAPFILEENTRIES][2]; /* mapping data for user mapping in ficus */ gid_t info_gmapdata[GMAPFILEENTRIES][2]; /*mapping data for group mapping in ficus */ }; #ifdef KERNEL /* * A cache of vnode references */ struct umap_node { LIST_ENTRY(umap_node) umap_hash; /* Hash list */ struct vnode *umap_lowervp; /* Aliased vnode - VREFed once */ struct vnode *umap_vnode; /* Back pointer to vnode/umap_node */ }; extern int umap_node_create __P((struct mount *mp, struct vnode *target, struct vnode **vpp)); extern u_long umap_reverse_findid __P((u_long id, u_long map[][2], int nentries)); extern void umap_mapids __P((struct mount *v_mount, struct ucred *credp)); #define MOUNTTOUMAPMOUNT(mp) ((struct umap_mount *)((mp)->mnt_data)) #define VTOUMAP(vp) ((struct umap_node *)(vp)->v_data) #define UMAPTOV(xp) ((xp)->umap_vnode) #ifdef UMAPFS_DIAGNOSTIC extern struct vnode *umap_checkvp __P((struct vnode *vp, char *fil, int lno)); #define UMAPVPTOLOWERVP(vp) umap_checkvp((vp), __FILE__, __LINE__) #else #define UMAPVPTOLOWERVP(vp) (VTOUMAP(vp)->umap_lowervp) #endif extern int (**umap_vnodeop_p)(void *); extern struct vfsops umap_vfsops; #endif /* KERNEL */