X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/d52fe63fc81f7e44faaae711812a211a78434976..9bccf70c0258c7cac2dcb80011b2a964d884c552:/bsd/miscfs/kernfs/kernfs_vfsops.c diff --git a/bsd/miscfs/kernfs/kernfs_vfsops.c b/bsd/miscfs/kernfs/kernfs_vfsops.c deleted file mode 100644 index 76d28e5ff..000000000 --- a/bsd/miscfs/kernfs/kernfs_vfsops.c +++ /dev/null @@ -1,338 +0,0 @@ -/* - * 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: kernfs_vfsops.c,v 1.23 1995/03/09 12:05:52 mycroft 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 - * Jan-Simon Pendry. - * - * 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. - * - * @(#)kernfs_vfsops.c 8.5 (Berkeley) 6/15/94 - */ - -/* - * Kernel params Filesystem - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include - -dev_t rrootdev = NODEV; - -kernfs_init() -{ - -} - -void -kernfs_get_rrootdev() -{ - static int tried = 0; - int cmaj; - - if (tried) { - /* Already did it once. */ - return; - } - tried = 1; - - if (rootdev == NODEV) - return; - for (cmaj = 0; cmaj < nchrdev; cmaj++) { - rrootdev = makedev(cmaj, minor(rootdev)); - if (chrtoblk(rrootdev) == rootdev) - return; - } - rrootdev = NODEV; - printf("kernfs_get_rrootdev: no raw root device\n"); -} - -/* - * Mount the Kernel params filesystem - */ -kernfs_mount(mp, path, data, ndp, p) - struct mount *mp; - char *path; - caddr_t data; - struct nameidata *ndp; - struct proc *p; -{ - int error = 0; - size_t size; - struct kernfs_mount *fmp; - struct vnode *rvp; - -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_mount(mp = %x)\n", mp); -#endif - - /* - * Update is a no-op - */ - if (mp->mnt_flag & MNT_UPDATE) - return (EOPNOTSUPP); - - MALLOC(fmp, struct kernfs_mount *, sizeof(struct kernfs_mount), - M_MISCFSMNT, M_WAITOK); - if (error = getnewvnode(VT_KERNFS, mp, kernfs_vnodeop_p, &rvp)) { - FREE(fmp, M_MISCFSMNT); - return (error); - } - - rvp->v_type = VDIR; - rvp->v_flag |= VROOT; -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_mount: root vp = %x\n", rvp); -#endif - fmp->kf_root = rvp; - mp->mnt_flag |= MNT_LOCAL; - mp->mnt_data = (qaddr_t)fmp; - getnewfsid(mp, makefstype(MOUNT_KERNFS)); - - (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN - 1, &size); - bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size); - bzero(mp->mnt_stat.f_mntfromname, MNAMELEN); - bcopy("kernfs", mp->mnt_stat.f_mntfromname, sizeof("kernfs")); -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_mount: at %s\n", mp->mnt_stat.f_mntonname); -#endif - - kernfs_get_rrootdev(); - return (0); -} - -kernfs_start(mp, flags, p) - struct mount *mp; - int flags; - struct proc *p; -{ - - return (0); -} - -kernfs_unmount(mp, mntflags, p) - struct mount *mp; - int mntflags; - struct proc *p; -{ - int error; - int flags = 0; - extern int doforce; - struct vnode *rootvp = VFSTOKERNFS(mp)->kf_root; - -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_unmount(mp = %x)\n", mp); -#endif - - if (mntflags & MNT_FORCE) { - /* kernfs can never be rootfs so don't check for it */ - if (!doforce) - return (EINVAL); - flags |= FORCECLOSE; - } - - /* - * Clear out buffer cache. I don't think we - * ever get anything cached at this level at the - * moment, but who knows... - */ - if (rootvp->v_usecount > 1) - return (EBUSY); -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_unmount: calling vflush\n"); -#endif - if (error = vflush(mp, rootvp, flags)) - return (error); - -#ifdef KERNFS_DIAGNOSTIC - vprint("kernfs root", rootvp); -#endif - /* - * Clean out the old root vnode for reuse. - */ - vrele(rootvp); - vgone(rootvp); - /* - * Finally, throw away the kernfs_mount structure - */ - free(mp->mnt_data, M_MISCFSMNT); - mp->mnt_data = 0; - return (0); -} - -kernfs_root(mp, vpp) - struct mount *mp; - struct vnode **vpp; -{ - struct vnode *vp; - -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_root(mp = %x)\n", mp); -#endif - - /* - * Return locked reference to root. - */ - vp = VFSTOKERNFS(mp)->kf_root; - VREF(vp); - VOP_LOCK(vp); - *vpp = vp; - return (0); -} - -kernfs_quotactl(mp, cmd, uid, arg, p) - struct mount *mp; - int cmd; - uid_t uid; - caddr_t arg; - struct proc *p; -{ - - return (EOPNOTSUPP); -} - -kernfs_statfs(mp, sbp, p) - struct mount *mp; - struct statfs *sbp; - struct proc *p; -{ - -#ifdef KERNFS_DIAGNOSTIC - printf("kernfs_statfs(mp = %x)\n", mp); -#endif - -#ifdef COMPAT_09 - sbp->f_type = 7; -#else - sbp->f_type = 0; -#endif - sbp->f_bsize = DEV_BSIZE; - sbp->f_iosize = DEV_BSIZE; - sbp->f_blocks = 2; /* 1K to keep df happy */ - sbp->f_bfree = 0; - sbp->f_bavail = 0; - sbp->f_files = 0; - sbp->f_ffree = 0; - if (sbp != &mp->mnt_stat) { - bcopy(&mp->mnt_stat.f_fsid, &sbp->f_fsid, sizeof(sbp->f_fsid)); - bcopy(mp->mnt_stat.f_mntonname, sbp->f_mntonname, MNAMELEN); - bcopy(mp->mnt_stat.f_mntfromname, sbp->f_mntfromname, MNAMELEN); - } - strncpy(sbp->f_fstypename, mp->mnt_op->vfs_name, MFSNAMELEN); - sbp->f_fstypename[MFSNAMELEN] = '\0'; - return (0); -} - -kernfs_sync(mp, waitfor) - struct mount *mp; - int waitfor; -{ - - return (0); -} - -/* - * Kernfs flat namespace lookup. - * Currently unsupported. - */ -kernfs_vget(mp, ino, vpp) - struct mount *mp; - ino_t ino; - struct vnode **vpp; -{ - - return (EOPNOTSUPP); -} - - -kernfs_fhtovp(mp, fhp, setgen, vpp) - struct mount *mp; - struct fid *fhp; - int setgen; - struct vnode **vpp; -{ - - return (EOPNOTSUPP); -} - -kernfs_vptofh(vp, fhp) - struct vnode *vp; - struct fid *fhp; -{ - - return (EOPNOTSUPP); -} - -struct vfsops kernfs_vfsops = { - MOUNT_KERNFS, - kernfs_mount, - kernfs_start, - kernfs_unmount, - kernfs_root, - kernfs_quotactl, - kernfs_statfs, - kernfs_sync, - kernfs_vget, - kernfs_fhtovp, - kernfs_vptofh, - kernfs_init, -};