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NetBSD/sys/compat/common/vfs_syscalls_50.c

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/* $NetBSD: vfs_syscalls_50.c,v 1.8 2011/03/24 17:05:44 bouyer Exp $ */
/*-
* Copyright (c) 2008 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Christos Zoulas.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: vfs_syscalls_50.c,v 1.8 2011/03/24 17:05:44 bouyer Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/filedesc.h>
#include <sys/kernel.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/socketvar.h>
#include <sys/vnode.h>
#include <sys/mount.h>
#include <sys/proc.h>
#include <sys/uio.h>
#include <sys/dirent.h>
#include <sys/malloc.h>
#include <sys/kauth.h>
#include <sys/time.h>
#include <sys/vfs_syscalls.h>
#ifndef LFS
#define LFS
#endif
#include <sys/syscallargs.h>
#include <ufs/lfs/lfs_extern.h>
#include <compat/common/compat_util.h>
#include <compat/sys/time.h>
#include <compat/sys/stat.h>
#include <compat/sys/dirent.h>
#include <compat/sys/mount.h>
static void cvtstat(struct stat30 *, const struct stat *);
/*
* Convert from a new to an old stat structure.
*/
static void
cvtstat(struct stat30 *ost, const struct stat *st)
{
ost->st_dev = st->st_dev;
ost->st_ino = st->st_ino;
ost->st_mode = st->st_mode;
ost->st_nlink = st->st_nlink;
ost->st_uid = st->st_uid;
ost->st_gid = st->st_gid;
ost->st_rdev = st->st_rdev;
timespec_to_timespec50(&st->st_atimespec, &ost->st_atimespec);
timespec_to_timespec50(&st->st_mtimespec, &ost->st_mtimespec);
timespec_to_timespec50(&st->st_ctimespec, &ost->st_ctimespec);
timespec_to_timespec50(&st->st_birthtimespec, &ost->st_birthtimespec);
ost->st_size = st->st_size;
ost->st_blocks = st->st_blocks;
ost->st_blksize = st->st_blksize;
ost->st_flags = st->st_flags;
ost->st_gen = st->st_gen;
memset(ost->st_spare, 0, sizeof(ost->st_spare));
}
/*
* Get file status; this version follows links.
*/
/* ARGSUSED */
int
compat_50_sys___stat30(struct lwp *l, const struct compat_50_sys___stat30_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(struct stat30 *) ub;
} */
struct stat sb;
struct stat30 osb;
int error;
error = do_sys_stat(SCARG(uap, path), FOLLOW, &sb);
if (error)
return error;
cvtstat(&osb, &sb);
error = copyout(&osb, SCARG(uap, ub), sizeof (osb));
return error;
}
/*
* Get file status; this version does not follow links.
*/
/* ARGSUSED */
int
compat_50_sys___lstat30(struct lwp *l, const struct compat_50_sys___lstat30_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(struct stat30 *) ub;
} */
struct stat sb;
struct stat30 osb;
int error;
error = do_sys_stat(SCARG(uap, path), NOFOLLOW, &sb);
if (error)
return error;
cvtstat(&osb, &sb);
error = copyout(&osb, SCARG(uap, ub), sizeof (osb));
return error;
}
/*
* Return status information about a file descriptor.
*/
/* ARGSUSED */
int
compat_50_sys___fstat30(struct lwp *l, const struct compat_50_sys___fstat30_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(struct stat30 *) sb;
} */
struct stat sb;
struct stat30 osb;
int error;
error = do_sys_fstat(SCARG(uap, fd), &sb);
if (error)
return error;
cvtstat(&osb, &sb);
error = copyout(&osb, SCARG(uap, sb), sizeof (osb));
return error;
}
/* ARGSUSED */
int
compat_50_sys___fhstat40(struct lwp *l, const struct compat_50_sys___fhstat40_args *uap, register_t *retval)
{
/* {
syscallarg(const void *) fhp;
syscallarg(size_t) fh_size;
syscallarg(struct stat30 *) sb;
} */
struct stat sb;
struct stat30 osb;
int error;
error = do_fhstat(l, SCARG(uap, fhp), SCARG(uap, fh_size), &sb);
if (error)
return error;
cvtstat(&osb, &sb);
error = copyout(&osb, SCARG(uap, sb), sizeof (osb));
return error;
}
static int
compat_50_do_sys_utimes(struct lwp *l, struct vnode *vp, const char *path,
int flag, const struct timeval50 *tptr)
{
struct timeval tv[2], *tvp;
struct timeval50 tv50[2];
if (tptr) {
int error = copyin(tptr, tv50, sizeof(tv50));
if (error)
return error;
timeval50_to_timeval(&tv50[0], &tv[0]);
timeval50_to_timeval(&tv50[1], &tv[1]);
tvp = tv;
} else
tvp = NULL;
return do_sys_utimes(l, vp, path, flag, tvp, UIO_SYSSPACE);
}
/*
* Set the access and modification times given a path name; this
* version follows links.
*/
/* ARGSUSED */
int
compat_50_sys_utimes(struct lwp *l, const struct compat_50_sys_utimes_args *uap,
register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(const struct timeval50 *) tptr;
} */
return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), FOLLOW,
SCARG(uap, tptr));
}
/*
* Set the access and modification times given a file descriptor.
*/
/* ARGSUSED */
int
compat_50_sys_futimes(struct lwp *l,
const struct compat_50_sys_futimes_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(const struct timeval50 *) tptr;
} */
int error;
struct file *fp;
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return error;
error = compat_50_do_sys_utimes(l, fp->f_data, NULL, 0,
SCARG(uap, tptr));
fd_putfile(SCARG(uap, fd));
return error;
}
/*
* Set the access and modification times given a path name; this
* version does not follow links.
*/
int
compat_50_sys_lutimes(struct lwp *l,
const struct compat_50_sys_lutimes_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(const struct timeval50 *) tptr;
} */
return compat_50_do_sys_utimes(l, NULL, SCARG(uap, path), NOFOLLOW,
SCARG(uap, tptr));
}
int
compat_50_sys_lfs_segwait(struct lwp *l,
const struct compat_50_sys_lfs_segwait_args *uap, register_t *retval)
{
/* {
syscallarg(fsid_t *) fsidp;
syscallarg(struct timeval50 *) tv;
} */
#ifdef notyet
struct timeval atv;
struct timeval50 atv50;
fsid_t fsid;
int error;
/* XXX need we be su to segwait? */
if ((error = kauth_authorize_generic(l->l_cred, KAUTH_GENERIC_ISSUSER,
NULL)) != 0)
return (error);
if ((error = copyin(SCARG(uap, fsidp), &fsid, sizeof(fsid_t))) != 0)
return (error);
if (SCARG(uap, tv)) {
error = copyin(SCARG(uap, tv), &atv50, sizeof(atv50));
if (error)
return (error);
timeval50_to_timeval(&atv50, &atv);
if (itimerfix(&atv))
return (EINVAL);
} else /* NULL or invalid */
atv.tv_sec = atv.tv_usec = 0;
return lfs_segwait(&fsid, &atv);
#else
return ENOSYS;
#endif
}
int
compat_50_sys_mknod(struct lwp *l,
const struct compat_50_sys_mknod_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(mode_t) mode;
syscallarg(uint32_t) dev;
} */
return do_sys_mknod(l, SCARG(uap, path), SCARG(uap, mode),
SCARG(uap, dev), retval, UIO_USERSPACE);
}
#include <ufs/ufs/quota1.h>
#include <quota/quotaprop.h>
/* ARGSUSED */
int
compat_50_sys_quotactl(struct lwp *l, const struct compat_50_sys_quotactl_args *uap, register_t *retval)
{
/* {
syscallarg(const char *) path;
syscallarg(int) cmd;
syscallarg(int) uid;
syscallarg(void *) arg;
} */
struct mount *mp;
int error;
uint8_t error8;
struct vnode *vp;
int q1cmd = SCARG(uap, cmd);
prop_dictionary_t dict, data, cmd;
prop_array_t cmds, datas;
char *bufpath;
struct dqblk dqblk;
struct ufs_quota_entry qe[QUOTA_NLIMITS];
uint64_t *values[QUOTA_NLIMITS];
values[QUOTA_LIMIT_BLOCK] = &qe[QUOTA_LIMIT_BLOCK].ufsqe_hardlimit;
values[QUOTA_LIMIT_FILE] = &qe[QUOTA_LIMIT_FILE].ufsqe_hardlimit;
error = namei_simple_user(SCARG(uap, path),
NSM_FOLLOW_TRYEMULROOT, &vp);
if (error != 0)
return (error);
error = ENOMEM;
mp = vp->v_mount;
if ((dict = quota_prop_create()) == NULL)
goto out;
if ((cmds = prop_array_create()) == NULL)
goto out_dict;
if ((datas = prop_array_create()) == NULL)
goto out_cmds;
switch((q1cmd & ~SUBCMDMASK) >> SUBCMDSHIFT) {
case Q_QUOTAON:
data = prop_dictionary_create();
if (data == NULL)
goto out_datas;
bufpath = malloc(PATH_MAX * sizeof(char), M_TEMP, M_WAITOK);
if (bufpath == NULL)
goto out_data;
error = copyinstr(SCARG(uap, arg), bufpath, PATH_MAX, NULL);
if (error != 0) {
free(bufpath, M_TEMP);
goto out_data;
}
if (!prop_dictionary_set_cstring(data, "quotafile", bufpath))
error = ENOMEM;
free(bufpath, M_TEMP);
if (error)
goto out_data;
error = ENOMEM;
if (!prop_array_add_and_rel(datas, data))
goto out_datas;
if (!quota_prop_add_command(cmds, "quotaon",
ufs_quota_class_names[qtype2ufsclass(q1cmd & SUBCMDMASK)],
datas))
goto out_cmds;
goto do_quotaonoff;
case Q_QUOTAOFF:
error = ENOMEM;
if (!quota_prop_add_command(cmds, "quotaoff",
ufs_quota_class_names[qtype2ufsclass(q1cmd & SUBCMDMASK)],
datas))
goto out_cmds;
do_quotaonoff:
if (!prop_dictionary_set_and_rel(dict, "commands", cmds))
goto out_dict;
error = VFS_QUOTACTL(mp, dict);
if (error)
goto out_dict;
if ((error = quota_get_cmds(dict, &cmds)) != 0)
goto out_dict;
cmd = prop_array_get(cmds, 0);
if (cmd == NULL) {
error = EINVAL;
goto out_dict;
}
if (!prop_dictionary_get_int8(cmd, "return", &error8)) {
error = EINVAL;
goto out_dict;
}
error = error8;
goto out_dict;
case Q_GETQUOTA:
error = ENOMEM;
data = prop_dictionary_create();
if (data == NULL)
goto out_datas;
if (!prop_dictionary_set_uint32(data, "id", SCARG(uap, uid)))
goto out_data;
if (!prop_array_add_and_rel(datas, data))
goto out_datas;
if (!quota_prop_add_command(cmds, "get",
ufs_quota_class_names[qtype2ufsclass(q1cmd & SUBCMDMASK)],
datas))
goto out_cmds;
if (!prop_dictionary_set_and_rel(dict, "commands", cmds))
goto out_dict;
error = VFS_QUOTACTL(mp, dict);
if (error)
goto out_dict;
if ((error = quota_get_cmds(dict, &cmds)) != 0)
goto out_dict;
cmd = prop_array_get(cmds, 0);
if (cmd == NULL) {
error = EINVAL;
goto out_dict;
}
if (!prop_dictionary_get_int8(cmd, "return", &error8)) {
error = EINVAL;
goto out_dict;
}
error = error8;
if (error)
goto out_dict;
datas = prop_dictionary_get(cmd, "data");
error = EINVAL;
if (datas == NULL)
goto out_dict;
data = prop_array_get(datas, 0);
if (data == NULL)
goto out_dict;
error = proptoquota64(data, values,
ufs_quota_entry_names, UFS_QUOTA_NENTRIES,
ufs_quota_limit_names, QUOTA_NLIMITS);
if (error)
goto out_dict;
ufsqe2dqblk(qe, &dqblk);
error = copyout(&dqblk, SCARG(uap, arg), sizeof(dqblk));
goto out_dict;
case Q_SETQUOTA:
error = copyin(SCARG(uap, arg), &dqblk, sizeof(dqblk));
if (error)
goto out_datas;
dqblk2ufsqe(&dqblk, qe);
error = ENOMEM;
data = quota64toprop(SCARG(uap, uid), 0, values,
ufs_quota_entry_names, UFS_QUOTA_NENTRIES,
ufs_quota_limit_names, QUOTA_NLIMITS);
if (data == NULL)
goto out_data;
if (!prop_array_add_and_rel(datas, data))
goto out_datas;
if (!quota_prop_add_command(cmds, "set",
ufs_quota_class_names[qtype2ufsclass(q1cmd & SUBCMDMASK)],
datas))
goto out_cmds;
if (!prop_dictionary_set_and_rel(dict, "commands", cmds))
goto out_dict;
error = VFS_QUOTACTL(mp, dict);
if (error)
goto out_dict;
if ((error = quota_get_cmds(dict, &cmds)) != 0)
goto out_dict;
cmd = prop_array_get(cmds, 0);
if (cmd == NULL) {
error = EINVAL;
goto out_dict;
}
if (!prop_dictionary_get_int8(cmd, "return", &error8)) {
error = EINVAL;
goto out_dict;
}
error = error8;
goto out_dict;
case Q_SYNC:
/*
* not supported but used only to see if quota is supported,
* emulate with a "get version"
*/
error = ENOMEM;
if (!quota_prop_add_command(cmds, "get version",
ufs_quota_class_names[qtype2ufsclass(q1cmd & SUBCMDMASK)],
datas))
goto out_cmds;
if (!prop_dictionary_set_and_rel(dict, "commands", cmds))
goto out_dict;
error = VFS_QUOTACTL(mp, dict);
if (error)
goto out_dict;
if ((error = quota_get_cmds(dict, &cmds)) != 0)
goto out_dict;
cmd = prop_array_get(cmds, 0);
if (cmd == NULL) {
error = EINVAL;
goto out_dict;
}
if (!prop_dictionary_get_int8(cmd, "return", &error8)) {
error = EINVAL;
goto out_dict;
}
error = error8;
goto out_dict;
case Q_SETUSE:
default:
error = EOPNOTSUPP;
goto out_datas;
}
out_data:
prop_object_release(data);
out_datas:
prop_object_release(datas);
out_cmds:
prop_object_release(cmds);
out_dict:
prop_object_release(dict);
out:
vrele(vp);
return error;
}
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