1 /* $NetBSD: layer_extern.h,v 1.17 2004/06/30 17:42:55 hannken Exp $ */ 2 3 /* 4 * Copyright (c) 1999 National Aeronautics & Space Administration 5 * All rights reserved. 6 * 7 * This software was written by William Studenmund of the 8 * Numerical Aerospace Simulation Facility, NASA Ames Research Center. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. Neither the name of the National Aeronautics & Space Administration 19 * nor the names of its contributors may be used to endorse or promote 20 * products derived from this software without specific prior written 21 * permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY THE NATIONAL AERONAUTICS & SPACE ADMINISTRATION 24 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 25 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 26 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE ADMINISTRATION OR CONTRIB- 27 * UTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, 28 * OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 33 * POSSIBILITY OF SUCH DAMAGE. 34 */ 35 /* 36 * Copyright (c) 1992, 1993, 1995 37 * The Regents of the University of California. All rights reserved. 38 * 39 * This code is derived from software donated to Berkeley by 40 * Jan-Simon Pendry. 41 * 42 * Redistribution and use in source and binary forms, with or without 43 * modification, are permitted provided that the following conditions 44 * are met: 45 * 1. Redistributions of source code must retain the above copyright 46 * notice, this list of conditions and the following disclaimer. 47 * 2. Redistributions in binary form must reproduce the above copyright 48 * notice, this list of conditions and the following disclaimer in the 49 * documentation and/or other materials provided with the distribution. 50 * 3. Neither the name of the University nor the names of its contributors 51 * may be used to endorse or promote products derived from this software 52 * without specific prior written permission. 53 * 54 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 55 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 56 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 57 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 58 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 59 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 60 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 61 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 62 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 63 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 64 * SUCH DAMAGE. 65 * 66 */ 67 68 /* 69 * Routines defined by layerfs 70 */ 71 72 /* misc routines in layer_subr.c */ 73 void layerfs_init __P((void)); 74 void layerfs_done __P((void)); 75 int layer_node_alloc __P((struct mount *, struct vnode *, struct vnode **)); 76 int layer_node_create __P((struct mount *, struct vnode *, struct vnode **)); 77 struct vnode * 78 layer_node_find __P((struct mount *, struct vnode *)); 79 #define LOG2_SIZEVNODE 7 /* log2(sizeof struct vnode) */ 80 #define LAYER_NHASH(lmp, vp) \ 81 (&((lmp)->layerm_node_hashtbl[(((u_long)vp)>>LOG2_SIZEVNODE) & \ 82 (lmp)->layerm_node_hash])) 83 84 /* vfs routines */ 85 int layerfs_start __P((struct mount *, int, struct proc *)); 86 int layerfs_root __P((struct mount *, struct vnode **)); 87 int layerfs_quotactl __P((struct mount *, int, uid_t, void *, 88 struct proc *)); 89 int layerfs_statvfs __P((struct mount *, struct statvfs *, struct proc *)); 90 int layerfs_sync __P((struct mount *, int, struct ucred *, struct proc *)); 91 int layerfs_vget __P((struct mount *, ino_t, struct vnode **)); 92 int layerfs_fhtovp __P((struct mount *, struct fid *, struct vnode **)); 93 int layerfs_checkexp __P((struct mount *, struct mbuf *, int *, 94 struct ucred **)); 95 int layerfs_vptofh __P((struct vnode *, struct fid *)); 96 int layerfs_snapshot __P((struct mount *, struct vnode *, 97 struct timespec *)); 98 99 /* VOP routines */ 100 int layer_bypass __P((void *)); 101 int layer_getattr __P((void *)); 102 int layer_inactive __P((void *)); 103 int layer_reclaim __P((void *)); 104 int layer_print __P((void *)); 105 int layer_bwrite __P((void *)); 106 int layer_bmap __P((void *)); 107 int layer_lock __P((void *)); 108 int layer_unlock __P((void *)); 109 int layer_islocked __P((void *)); 110 int layer_fsync __P((void *)); 111 int layer_lookup __P((void *)); 112 int layer_setattr __P((void *)); 113 int layer_access __P((void *)); 114 int layer_open __P((void *)); 115 int layer_remove __P((void *)); 116 int layer_rename __P((void *)); 117 int layer_rmdir __P((void *)); 118 int layer_getpages __P((void *)); 119 int layer_putpages __P((void *)); 120