314 lines
8.3 KiB
C
314 lines
8.3 KiB
C
/* $NetBSD: vfs_syscalls_50.c,v 1.4 2009/01/26 13:00:04 njoly Exp $ */
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/*-
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* Copyright (c) 2008 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Christos Zoulas.
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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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls_50.c,v 1.4 2009/01/26 13:00:04 njoly 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/filedesc.h>
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#include <sys/kernel.h>
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/socketvar.h>
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#include <sys/vnode.h>
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#include <sys/mount.h>
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#include <sys/proc.h>
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#include <sys/uio.h>
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#include <sys/dirent.h>
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#include <sys/malloc.h>
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#include <sys/kauth.h>
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#include <sys/time.h>
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#include <sys/vfs_syscalls.h>
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#ifndef LFS
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#define LFS
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#endif
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#include <sys/syscallargs.h>
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#include <ufs/lfs/lfs_extern.h>
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#include <compat/common/compat_util.h>
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#include <compat/sys/time.h>
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#include <compat/sys/stat.h>
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#include <compat/sys/dirent.h>
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#include <compat/sys/mount.h>
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static void cvtstat(struct stat30 *, const struct stat *);
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/*
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* Convert from a new to an old stat structure.
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*/
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static void
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cvtstat(struct stat30 *ost, const struct stat *st)
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{
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ost->st_dev = st->st_dev;
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ost->st_ino = st->st_ino;
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ost->st_mode = st->st_mode;
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ost->st_nlink = st->st_nlink;
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ost->st_uid = st->st_uid;
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ost->st_gid = st->st_gid;
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ost->st_rdev = st->st_rdev;
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timespec_to_timespec50(&st->st_atimespec, &ost->st_atimespec);
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timespec_to_timespec50(&st->st_mtimespec, &ost->st_mtimespec);
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timespec_to_timespec50(&st->st_ctimespec, &ost->st_ctimespec);
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timespec_to_timespec50(&st->st_birthtimespec, &ost->st_birthtimespec);
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ost->st_size = st->st_size;
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ost->st_blocks = st->st_blocks;
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ost->st_blksize = st->st_blksize;
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ost->st_flags = st->st_flags;
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ost->st_gen = st->st_gen;
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}
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/*
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* Get file status; this version follows links.
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*/
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/* ARGSUSED */
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int
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compat_50_sys___stat30(struct lwp *l, const struct compat_50_sys___stat30_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct stat30 *) ub;
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} */
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struct stat sb;
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struct stat30 osb;
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int error;
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error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
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if (error)
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return error;
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cvtstat(&osb, &sb);
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error = copyout(&osb, SCARG(uap, ub), sizeof (osb));
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return error;
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}
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/*
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* Get file status; this version does not follow links.
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*/
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/* ARGSUSED */
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int
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compat_50_sys___lstat30(struct lwp *l, const struct compat_50_sys___lstat30_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(struct stat30 *) ub;
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} */
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struct stat sb;
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struct stat30 osb;
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int error;
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error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
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if (error)
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return error;
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cvtstat(&osb, &sb);
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error = copyout(&osb, SCARG(uap, ub), sizeof (osb));
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return error;
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}
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/*
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* Return status information about a file descriptor.
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*/
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/* ARGSUSED */
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int
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compat_50_sys___fstat30(struct lwp *l, const struct compat_50_sys___fstat30_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) fd;
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syscallarg(struct stat30 *) sb;
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} */
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struct stat sb;
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struct stat30 osb;
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int error;
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error = do_sys_fstat(SCARG(uap, fd), &sb);
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if (error)
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return error;
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cvtstat(&osb, &sb);
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error = copyout(&osb, SCARG(uap, sb), sizeof (osb));
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return error;
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}
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/* ARGSUSED */
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int
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compat_50_sys___fhstat40(struct lwp *l, const struct compat_50_sys___fhstat40_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const void *) fhp;
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syscallarg(size_t) fh_size;
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syscallarg(struct stat30 *) sb;
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} */
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struct stat sb;
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struct stat30 osb;
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int error;
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error = do_fhstat(l, SCARG(uap, fhp), SCARG(uap, fh_size), &sb);
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if (error)
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return error;
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cvtstat(&osb, &sb);
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error = copyout(&osb, SCARG(uap, sb), sizeof (osb));
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return error;
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}
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static int
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compat_50_do_sys_utimes(struct lwp *l, struct vnode *vp, const char *path,
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int flag, const struct timeval50 *tptr)
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{
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struct timeval tv[2], *tvp;
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struct timeval50 tv50[2];
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if (tptr) {
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int error = copyin(tptr, tv50, sizeof(tv50));
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if (error)
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return error;
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timeval50_to_timeval(&tv50[0], &tv[0]);
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timeval50_to_timeval(&tv50[1], &tv[1]);
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tvp = tv;
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} else
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tvp = NULL;
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return do_sys_utimes(l, vp, path, flag, tvp, UIO_SYSSPACE);
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}
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/*
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* Set the access and modification times given a path name; this
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* version follows links.
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*/
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/* ARGSUSED */
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int
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compat_50_sys_utimes(struct lwp *l, const struct compat_50_sys_utimes_args *uap,
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register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(const struct timeval50 *) tptr;
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} */
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return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW,
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SCARG(uap, tptr));
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}
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/*
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* Set the access and modification times given a file descriptor.
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*/
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/* ARGSUSED */
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int
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compat_50_sys_futimes(struct lwp *l,
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const struct compat_50_sys_futimes_args *uap, register_t *retval)
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{
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/* {
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syscallarg(int) fd;
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syscallarg(const struct timeval50 *) tptr;
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} */
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int error;
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struct file *fp;
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/* fd_getvnode() will use the descriptor for us */
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if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
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return error;
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error = compat_50_do_sys_utimes(l, fp->f_data, NULL, 0,
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SCARG(uap, tptr));
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fd_putfile(SCARG(uap, fd));
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return error;
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}
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/*
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* Set the access and modification times given a path name; this
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* version does not follow links.
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*/
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int
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compat_50_sys_lutimes(struct lwp *l,
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const struct compat_50_sys_lutimes_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(const struct timeval50 *) tptr;
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} */
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return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), NOFOLLOW,
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SCARG(uap, tptr));
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}
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int
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compat_50_sys_lfs_segwait(struct lwp *l,
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const struct compat_50_sys_lfs_segwait_args *uap, register_t *retval)
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{
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/* {
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syscallarg(fsid_t *) fsidp;
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syscallarg(struct timeval50 *) tv;
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} */
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#ifdef notyet
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struct timeval atv;
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struct timeval50 atv50;
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fsid_t fsid;
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int error;
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/* XXX need we be su to segwait? */
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if ((error = kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER,
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NULL)) != 0)
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return (error);
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if ((error = copyin(SCARG(uap, fsidp), &fsid, sizeof(fsid_t))) != 0)
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return (error);
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if (SCARG(uap, tv)) {
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error = copyin(SCARG(uap, tv), &atv50, sizeof(atv50));
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if (error)
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return (error);
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timeval50_to_timeval(&atv50, &atv);
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if (itimerfix(&atv))
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return (EINVAL);
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} else /* NULL or invalid */
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atv.tv_sec = atv.tv_usec = 0;
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return lfs_segwait(&fsid, &atv);
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#else
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return ENOSYS;
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#endif
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}
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int
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compat_50_sys_mknod(struct lwp *l,
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const struct compat_50_sys_mknod_args *uap, register_t *retval)
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{
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/* {
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syscallarg(const char *) path;
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syscallarg(mode_t) mode;
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syscallarg(uint32_t) dev;
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} */
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return do_sys_mknod(l, SCARG(uap, path), SCARG(uap, mode),
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SCARG(uap, dev), retval);
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}
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