314 lines
9.1 KiB
C
314 lines
9.1 KiB
C
/* $NetBSD: osf1_mount.c,v 1.55 2018/09/03 16:29:29 riastradh Exp $ */
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/*
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* Copyright (c) 1999 Christopher G. Demetriou. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Christopher G. Demetriou
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* for the NetBSD Project.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* Copyright (c) 1994, 1995 Carnegie-Mellon University.
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* All rights reserved.
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*
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* Author: Chris G. Demetriou
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*
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* Permission to use, copy, modify and distribute this software and
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* its documentation is hereby granted, provided that both the copyright
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* notice and this permission notice appear in all copies of the
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* software, derivative works or modified versions, and any portions
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* thereof, and that both notices appear in supporting documentation.
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*
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* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
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* CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
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* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
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*
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* Carnegie Mellon requests users of this software to return to
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*
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* Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
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* School of Computer Science
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* Carnegie Mellon University
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* Pittsburgh PA 15213-3890
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*
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* any improvements or extensions that they make and grant Carnegie the
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* rights to redistribute these changes.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: osf1_mount.c,v 1.55 2018/09/03 16:29:29 riastradh Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/namei.h>
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#include <sys/proc.h>
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#include <sys/file.h>
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#include <sys/filedesc.h>
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#include <sys/kernel.h>
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#include <sys/mount.h>
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#include <sys/vnode.h>
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#include <sys/syscallargs.h>
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#include <compat/osf1/osf1.h>
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#include <compat/osf1/osf1_syscallargs.h>
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#include <compat/common/compat_util.h>
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#include <compat/osf1/osf1_cvt.h>
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#include <net/if.h>
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#include <netinet/in.h>
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#include <nfs/rpcv2.h>
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#include <nfs/nfsproto.h>
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#include <nfs/nfs.h>
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#include <nfs/nfsmount.h>
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#include <ufs/ufs/quota.h>
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#include <ufs/ufs/ufsmount.h>
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#include <machine/vmparam.h>
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#define OSF1_MNT_WAIT 0x1
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#define OSF1_MNT_NOWAIT 0x2
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#define OSF1_MNT_FORCE 0x1
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#define OSF1_MNT_NOFORCE 0x2
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/* acceptable flags for various calls */
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#define OSF1_GETFSSTAT_FLAGS (OSF1_MNT_WAIT|OSF1_MNT_NOWAIT)
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#define OSF1_MOUNT_FLAGS 0xffffffff /* XXX */
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#define OSF1_UNMOUNT_FLAGS (OSF1_MNT_FORCE|OSF1_MNT_NOFORCE)
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static int osf1_mount_mfs(struct lwp *, const struct osf1_sys_mount_args *);
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static int osf1_mount_nfs(struct lwp *, const struct osf1_sys_mount_args *);
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int
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osf1_sys_fstatfs(struct lwp *l, const struct osf1_sys_fstatfs_args *uap, register_t *retval)
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{
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file_t *fp;
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struct mount *mp;
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struct statvfs *sp;
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struct osf1_statfs osfs;
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int error;
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/* fd_getvnode() will use the descriptor for us */
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if ((error = fd_getvnode(SCARG(uap, fd), &fp)))
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return (error);
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mp = fp->f_vnode->v_mount;
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sp = &mp->mnt_stat;
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if ((error = VFS_STATVFS(mp, sp)))
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goto out;
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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osf1_cvt_statfs_from_native(sp, &osfs);
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error = copyout(&osfs, SCARG(uap, buf), uimin(sizeof osfs,
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SCARG(uap, len)));
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out:
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fd_putfile(SCARG(uap, fd));
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return (error);
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}
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int
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osf1_sys_getfsstat(struct lwp *l, const struct osf1_sys_getfsstat_args *uap, register_t *retval)
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{
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mount_iterator_t *iter;
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struct mount *mp;
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struct statvfs *sp;
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struct osf1_statfs osfs;
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char *osf_sfsp;
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long count, maxcount, error;
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if (SCARG(uap, flags) & ~OSF1_GETFSSTAT_FLAGS)
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return (EINVAL);
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maxcount = SCARG(uap, bufsize) / sizeof(struct osf1_statfs);
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osf_sfsp = (void *)SCARG(uap, buf);
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mountlist_iterator_init(&iter);
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count = 0;
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while ((mp = mountlist_iterator_next(iter)) != NULL) {
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if (osf_sfsp && count < maxcount) {
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sp = &mp->mnt_stat;
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/*
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* If OSF1_MNT_NOWAIT is specified, do not refresh the
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* fsstat cache. OSF1_MNT_WAIT overrides
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* OSF1_MNT_NOWAIT.
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*/
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if (((SCARG(uap, flags) & OSF1_MNT_NOWAIT) == 0 ||
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(SCARG(uap, flags) & OSF1_MNT_WAIT)) &&
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(error = VFS_STATVFS(mp, sp)) == 0) {
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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osf1_cvt_statfs_from_native(sp, &osfs);
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if ((error = copyout(&osfs, osf_sfsp,
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sizeof (struct osf1_statfs)))) {
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mountlist_iterator_destroy(iter);
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return (error);
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}
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osf_sfsp += sizeof (struct osf1_statfs);
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}
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}
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count++;
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}
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mountlist_iterator_destroy(iter);
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if (osf_sfsp && count > maxcount)
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*retval = maxcount;
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else
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*retval = count;
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return (0);
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}
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int
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osf1_sys_mount(struct lwp *l, const struct osf1_sys_mount_args *uap, register_t *retval)
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{
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if (SCARG(uap, flags) & ~OSF1_MOUNT_FLAGS)
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return (EINVAL);
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/* XXX - xlate flags */
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switch (SCARG(uap, type)) {
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case OSF1_MOUNT_NFS:
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return osf1_mount_nfs(l, uap);
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break;
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case OSF1_MOUNT_MFS:
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return osf1_mount_mfs(l, uap);
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default:
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return (EINVAL);
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}
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}
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int
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osf1_sys_statfs(struct lwp *l, const struct osf1_sys_statfs_args *uap, register_t *retval)
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{
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struct mount *mp;
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struct statvfs *sp;
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struct osf1_statfs osfs;
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int error;
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struct vnode *vp;
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error = namei_simple_user(SCARG(uap, path),
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NSM_FOLLOW_TRYEMULROOT, &vp);
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if (error != 0)
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return (error);
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mp = vp->v_mount;
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sp = &mp->mnt_stat;
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vrele(vp);
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if ((error = VFS_STATVFS(mp, sp)))
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return (error);
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sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
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osf1_cvt_statfs_from_native(sp, &osfs);
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return copyout(&osfs, SCARG(uap, buf), uimin(sizeof osfs,
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SCARG(uap, len)));
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}
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int
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osf1_sys_unmount(struct lwp *l, const struct osf1_sys_unmount_args *uap, register_t *retval)
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{
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struct sys_unmount_args a;
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SCARG(&a, path) = SCARG(uap, path);
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if (SCARG(uap, flags) & ~OSF1_UNMOUNT_FLAGS)
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return (EINVAL);
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SCARG(&a, flags) = 0;
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if ((SCARG(uap, flags) & OSF1_MNT_FORCE) &&
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(SCARG(uap, flags) & OSF1_MNT_NOFORCE) == 0)
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SCARG(&a, flags) |= MNT_FORCE;
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return sys_unmount(l, &a, retval);
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}
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static int
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osf1_mount_mfs(struct lwp *l, const struct osf1_sys_mount_args *uap)
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{
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struct osf1_mfs_args osf_ma;
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struct mfs_args bsd_ma;
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int error;
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register_t dummy;
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if ((error = copyin(SCARG(uap, data), &osf_ma, sizeof osf_ma)))
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return error;
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memset(&bsd_ma, 0, sizeof bsd_ma);
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bsd_ma.fspec = osf_ma.name;
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/* XXX export args */
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bsd_ma.base = osf_ma.base;
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bsd_ma.size = osf_ma.size;
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return do_sys_mount(l, "mfs", UIO_SYSSPACE, SCARG(uap, path),
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SCARG(uap, flags), &bsd_ma, UIO_SYSSPACE, sizeof bsd_ma, &dummy);
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}
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static int
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osf1_mount_nfs(struct lwp *l, const struct osf1_sys_mount_args *uap)
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{
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struct osf1_nfs_args osf_na;
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struct nfs_args bsd_na;
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int error;
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unsigned long leftovers;
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register_t dummy;
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if ((error = copyin(SCARG(uap, data), &osf_na, sizeof osf_na)))
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return error;
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memset(&bsd_na, 0, sizeof bsd_na);
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bsd_na.addr = (struct sockaddr *)osf_na.addr;
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bsd_na.addrlen = sizeof (struct sockaddr_in);
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bsd_na.fh = osf_na.fh;
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/* translate flags */
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bsd_na.flags = emul_flags_translate(osf1_nfs_mount_flags_xtab,
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osf_na.flags, &leftovers);
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if (leftovers & OSF1_NFSMNT_HOSTNAME) {
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leftovers &= ~OSF1_NFSMNT_HOSTNAME;
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bsd_na.hostname = osf_na.hostname;
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} else {
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/* XXX FILL IN HOST NAME WITH IPADDR? */
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}
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if (leftovers & OSF1_NFSMNT_TCP) {
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leftovers &= ~OSF1_NFSMNT_TCP;
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bsd_na.sotype = SOCK_DGRAM;
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bsd_na.proto = 0;
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} else {
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bsd_na.sotype = SOCK_STREAM;
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bsd_na.proto = 0;
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}
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if (leftovers != 0)
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return (EINVAL);
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/* copy structure elements based on flags */
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if (bsd_na.flags & NFSMNT_WSIZE)
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bsd_na.wsize = osf_na.wsize;
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if (bsd_na.flags & NFSMNT_RSIZE)
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bsd_na.rsize = osf_na.rsize;
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if (bsd_na.flags & NFSMNT_TIMEO)
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bsd_na.timeo = osf_na.timeo;
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if (bsd_na.flags & NFSMNT_RETRANS)
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bsd_na.retrans = osf_na.retrans;
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return do_sys_mount(l, "nfs", UIO_SYSSPACE, SCARG(uap, path),
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SCARG(uap, flags), &bsd_na, UIO_SYSSPACE, sizeof bsd_na, &dummy);
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}
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