+++ /dev/null
-/*
- * 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: procfs_vfsops.c,v 1.23 1995/03/09 12:05:54 mycroft Exp $ */
-
-/*
- * Copyright (c) 1993 Jan-Simon Pendry
- * Copyright (c) 1993
- * The Regents of the University of California. All rights reserved.
- *
- * This code is derived from software contributed 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.
- *
- * @(#)procfs_vfsops.c 8.5 (Berkeley) 6/15/94
- */
-
-/*
- * procfs VFS interface
- */
-
-#include <sys/param.h>
-#include <sys/time.h>
-#include <sys/kernel.h>
-#include <sys/proc.h>
-#include <sys/buf.h>
-#include <sys/syslog.h>
-#include <sys/mount.h>
-#include <sys/signalvar.h>
-#include <sys/vnode.h>
-#include <miscfs/procfs/procfs.h>
-#include <vm/vm.h> /* for PAGE_SIZE */
-
-/*
- * VFS Operations.
- *
- * mount system call
- */
-/* ARGSUSED */
-procfs_mount(mp, path, data, ndp, p)
- struct mount *mp;
- char *path;
- caddr_t data;
- struct nameidata *ndp;
- struct proc *p;
-{
- size_t size;
-
- if (UIO_MX & (UIO_MX-1)) {
- log(LOG_ERR, "procfs: invalid directory entry size");
- return (EINVAL);
- }
-
- if (mp->mnt_flag & MNT_UPDATE)
- return (EOPNOTSUPP);
-
- mp->mnt_flag |= MNT_LOCAL;
- mp->mnt_data = 0;
- getnewfsid(mp, makefstype(MOUNT_PROCFS));
-
- (void) copyinstr(path, mp->mnt_stat.f_mntonname, MNAMELEN, &size);
- bzero(mp->mnt_stat.f_mntonname + size, MNAMELEN - size);
- bzero(mp->mnt_stat.f_mntfromname, MNAMELEN);
- bcopy("procfs", mp->mnt_stat.f_mntfromname, sizeof("procfs"));
- return (0);
-}
-
-/*
- * unmount system call
- */
-procfs_unmount(mp, mntflags, p)
- struct mount *mp;
- int mntflags;
- struct proc *p;
-{
- int error;
- extern int doforce;
- int flags = 0;
-
- if (mntflags & MNT_FORCE) {
- /* procfs can never be rootfs so don't check for it */
- if (!doforce)
- return (EINVAL);
- flags |= FORCECLOSE;
- }
-
- if (error = vflush(mp, 0, flags))
- return (error);
-
- return (0);
-}
-
-procfs_root(mp, vpp)
- struct mount *mp;
- struct vnode **vpp;
-{
-
- return (procfs_allocvp(mp, vpp, 0, Proot));
-}
-
-/* ARGSUSED */
-procfs_start(mp, flags, p)
- struct mount *mp;
- int flags;
- struct proc *p;
-{
-
- return (0);
-}
-
-/*
- * Get file system statistics.
- */
-procfs_statfs(mp, sbp, p)
- struct mount *mp;
- struct statfs *sbp;
- struct proc *p;
-{
-
-#ifdef COMPAT_09
- sbp->f_type = 10;
-#else
- sbp->f_type = 0;
-#endif
- sbp->f_bsize = PAGE_SIZE;
- sbp->f_iosize = PAGE_SIZE;
- sbp->f_blocks = 1; /* avoid divide by zero in some df's */
- sbp->f_bfree = 0;
- sbp->f_bavail = 0;
- sbp->f_files = maxproc; /* approx */
- sbp->f_ffree = maxproc - nprocs; /* approx */
- 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);
-}
-
-procfs_quotactl(mp, cmds, uid, arg, p)
- struct mount *mp;
- int cmds;
- uid_t uid;
- caddr_t arg;
- struct proc *p;
-{
-
- return (EOPNOTSUPP);
-}
-
-procfs_sync(mp, waitfor)
- struct mount *mp;
- int waitfor;
-{
-
- return (0);
-}
-
-procfs_vget(mp, ino, vpp)
- struct mount *mp;
- ino_t ino;
- struct vnode **vpp;
-{
-
- return (EOPNOTSUPP);
-}
-
-procfs_fhtovp(mp, fhp, vpp)
- struct mount *mp;
- struct fid *fhp;
- struct vnode **vpp;
-{
-
- return (EINVAL);
-}
-
-procfs_vptofh(vp, fhp)
- struct vnode *vp;
- struct fid *fhp;
-{
-
- return (EINVAL);
-}
-
-procfs_init()
-{
-
- return (0);
-}
-
-struct vfsops procfs_vfsops = {
- MOUNT_PROCFS,
- procfs_mount,
- procfs_start,
- procfs_unmount,
- procfs_root,
- procfs_quotactl,
- procfs_statfs,
- procfs_sync,
- procfs_vget,
- procfs_fhtovp,
- procfs_vptofh,
- procfs_init,
-};
projects / apple / xnu.git / blobdiff