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NetBSD/sys/compat/ibcs2/ibcs2_stat.c

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/* $NetBSD: ibcs2_stat.c,v 1.33 2005/12/11 12:20:03 christos Exp $ */
/*
* Copyright (c) 1995, 1998 Scott Bartram
* All rights reserved.
*
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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: ibcs2_stat.c,v 1.33 2005/12/11 12:20:03 christos Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/namei.h>
#include <sys/proc.h>
#include <sys/file.h>
#include <sys/stat.h>
#include <sys/filedesc.h>
#include <sys/ioctl.h>
#include <sys/kernel.h>
#include <sys/mount.h>
#include <sys/vnode.h>
#include <sys/sa.h>
#include <sys/syscallargs.h>
#include <compat/ibcs2/ibcs2_types.h>
#include <compat/ibcs2/ibcs2_fcntl.h>
#include <compat/ibcs2/ibcs2_signal.h>
#include <compat/ibcs2/ibcs2_stat.h>
#include <compat/ibcs2/ibcs2_statfs.h>
#include <compat/ibcs2/ibcs2_syscallargs.h>
#include <compat/ibcs2/ibcs2_ustat.h>
#include <compat/ibcs2/ibcs2_util.h>
#include <compat/ibcs2/ibcs2_utsname.h>
static void bsd_stat2ibcs_stat __P((struct stat *, struct ibcs2_stat *));
static int cvt_statfs __P((struct statvfs *, caddr_t, int));
static int cvt_statvfs __P((struct statvfs *, caddr_t, int));
static void
bsd_stat2ibcs_stat(st, st4)
struct stat *st;
struct ibcs2_stat *st4;
{
memset(st4, 0, sizeof(*st4));
st4->st_dev = (ibcs2_dev_t)st->st_dev;
st4->st_ino = (ibcs2_ino_t)st->st_ino;
st4->st_mode = (ibcs2_mode_t)st->st_mode;
if (st->st_nlink >= (1 << 15))
st4->st_nlink = (1 << 15) - 1;
else
st4->st_nlink = (ibcs2_nlink_t)st->st_nlink;
st4->st_uid = (ibcs2_uid_t)st->st_uid;
st4->st_gid = (ibcs2_gid_t)st->st_gid;
st4->st_rdev = (ibcs2_dev_t)st->st_rdev;
st4->st_size = (ibcs2_off_t)st->st_size;
st4->st_atim = (ibcs2_time_t)st->st_atime;
st4->st_mtim = (ibcs2_time_t)st->st_mtime;
st4->st_ctim = (ibcs2_time_t)st->st_ctime;
}
static int
cvt_statfs(sp, tbuf, len)
struct statvfs *sp;
caddr_t tbuf;
int len;
{
struct ibcs2_statfs ssfs;
if (len < 0)
return (EINVAL);
if (len > sizeof(ssfs))
len = sizeof(ssfs);
memset(&ssfs, 0, sizeof ssfs);
ssfs.f_fstyp = 0;
ssfs.f_bsize = sp->f_bsize;
ssfs.f_frsize = sp->f_frsize;
ssfs.f_blocks = sp->f_blocks;
ssfs.f_bfree = sp->f_bfree;
ssfs.f_files = sp->f_files;
ssfs.f_ffree = sp->f_ffree;
ssfs.f_fname[0] = 0;
ssfs.f_fpack[0] = 0;
return copyout((caddr_t)&ssfs, tbuf, len);
}
static int
cvt_statvfs(sp, tbuf, len)
struct statvfs *sp;
caddr_t tbuf;
int len;
{
struct ibcs2_statvfs ssvfs;
if (len < 0)
return (EINVAL);
if (len > sizeof(ssvfs))
len = sizeof(ssvfs);
memset(&ssvfs, 0, sizeof ssvfs);
ssvfs.f_bsize = sp->f_bsize;
ssvfs.f_frsize = sp->f_frsize;
ssvfs.f_blocks = sp->f_blocks;
ssvfs.f_bfree = sp->f_bfree;
ssvfs.f_bavail = sp->f_bavail;
ssvfs.f_files = sp->f_files;
ssvfs.f_ffree = sp->f_ffree;
ssvfs.f_favail = sp->f_favail;
ssvfs.f_fsid = sp->f_fsidx.__fsid_val[0];
strncpy(ssvfs.f_basetype, sp->f_fstypename, 15);
ssvfs.f_flag = 0;
ssvfs.f_namemax = PATH_MAX;
ssvfs.f_fstr[0] = 0;
return copyout((caddr_t)&ssvfs, tbuf, len);
}
int
ibcs2_sys_statfs(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_statfs_args /* {
syscallarg(const char *) path;
syscallarg(struct ibcs2_statfs *) buf;
syscallarg(int) len;
syscallarg(int) fstype;
} */ *uap = v;
struct proc *p = l->l_proc;
struct mount *mp;
struct statvfs *sp;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init(p, 0);
CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), l);
if ((error = namei(&nd)) != 0)
return (error);
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if ((error = VFS_STATVFS(mp, sp, l)) != 0)
return (error);
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
return cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
}
int
ibcs2_sys_fstatfs(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_fstatfs_args /* {
syscallarg(int) fd;
syscallarg(struct ibcs2_statfs *) buf;
syscallarg(int) len;
syscallarg(int) fstype;
} */ *uap = v;
struct proc *p = l->l_proc;
struct file *fp;
struct mount *mp;
struct statvfs *sp;
int error;
/* getvnode() will use the descriptor for us */
if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
return (error);
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if ((error = VFS_STATVFS(mp, sp, l)) != 0)
goto out;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
error = cvt_statfs(sp, (caddr_t)SCARG(uap, buf), SCARG(uap, len));
out:
FILE_UNUSE(fp, l);
return (error);
}
int
ibcs2_sys_statvfs(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_statvfs_args /* {
syscallarg(const char *) path;
syscallarg(struct ibcs2_statvfs *) buf;
} */ *uap = v;
struct proc *p = l->l_proc;
struct mount *mp;
struct statvfs *sp;
int error;
struct nameidata nd;
caddr_t sg = stackgap_init(p, 0);
CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
NDINIT(&nd, LOOKUP, FOLLOW, UIO_USERSPACE, SCARG(uap, path), l);
if ((error = namei(&nd)) != 0)
return (error);
mp = nd.ni_vp->v_mount;
sp = &mp->mnt_stat;
vrele(nd.ni_vp);
if ((error = VFS_STATVFS(mp, sp, l)) != 0)
return (error);
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
return cvt_statvfs(sp, (caddr_t)SCARG(uap, buf),
sizeof(struct ibcs2_statvfs));
}
int
ibcs2_sys_fstatvfs(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_fstatvfs_args /* {
syscallarg(int) fd;
syscallarg(struct ibcs2_statvfs *) buf;
} */ *uap = v;
struct proc *p = l->l_proc;
struct file *fp;
struct mount *mp;
struct statvfs *sp;
int error;
/* getvnode() will use the descriptor for us */
if ((error = getvnode(p->p_fd, SCARG(uap, fd), &fp)) != 0)
return (error);
mp = ((struct vnode *)fp->f_data)->v_mount;
sp = &mp->mnt_stat;
if ((error = VFS_STATVFS(mp, sp, l)) != 0)
goto out;
sp->f_flag = mp->mnt_flag & MNT_VISFLAGMASK;
error = cvt_statvfs(sp, (caddr_t)SCARG(uap, buf),
sizeof(struct ibcs2_statvfs));
out:
FILE_UNUSE(fp, l);
return (error);
}
int
ibcs2_sys_stat(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_stat_args /* {
syscallarg(const char *) path;
syscallarg(struct ibcs2_stat *) st;
} */ *uap = v;
struct proc *p = l->l_proc;
struct stat st;
struct ibcs2_stat ibcs2_st;
struct sys___stat30_args cup;
int error;
caddr_t sg = stackgap_init(p, 0);
SCARG(&cup, ub) = stackgap_alloc(p, &sg, sizeof(st));
CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
SCARG(&cup, path) = SCARG(uap, path);
if ((error = sys___stat30(l, &cup, retval)) != 0)
return error;
if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_sys_lstat(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_lstat_args /* {
syscallarg(const char *) path;
syscallarg(struct ibcs2_stat *) st;
} */ *uap = v;
struct proc *p = l->l_proc;
struct stat st;
struct ibcs2_stat ibcs2_st;
struct sys___lstat30_args cup;
int error;
caddr_t sg = stackgap_init(p, 0);
SCARG(&cup, ub) = stackgap_alloc(p, &sg, sizeof(st));
CHECK_ALT_EXIST(l, &sg, SCARG(uap, path));
SCARG(&cup, path) = SCARG(uap, path);
if ((error = sys___lstat30(l, &cup, retval)) != 0)
return error;
if ((error = copyin(SCARG(&cup, ub), &st, sizeof(st))) != 0)
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_sys_fstat(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_fstat_args /* {
syscallarg(int) fd;
syscallarg(struct ibcs2_stat *) st;
} */ *uap = v;
struct proc *p = l->l_proc;
struct stat st;
struct ibcs2_stat ibcs2_st;
struct sys___fstat30_args cup;
int error;
caddr_t sg = stackgap_init(p, 0);
SCARG(&cup, fd) = SCARG(uap, fd);
SCARG(&cup, sb) = stackgap_alloc(p, &sg, sizeof(st));
if ((error = sys___fstat30(l, &cup, retval)) != 0)
return error;
if ((error = copyin(SCARG(&cup, sb), &st, sizeof(st))) != 0)
return error;
bsd_stat2ibcs_stat(&st, &ibcs2_st);
return copyout((caddr_t)&ibcs2_st, (caddr_t)SCARG(uap, st),
ibcs2_stat_len);
}
int
ibcs2_sys_utssys(l, v, retval)
struct lwp *l;
void *v;
register_t *retval;
{
struct ibcs2_sys_utssys_args /* {
syscallarg(int) a1;
syscallarg(int) a2;
syscallarg(int) flag;
} */ *uap = v;
switch (SCARG(uap, flag)) {
case 0: /* uname(struct utsname *) */
{
struct ibcs2_utsname sut;
memset(&sut, 0, ibcs2_utsname_len);
memcpy(sut.sysname, ostype, sizeof(sut.sysname) - 1);
memcpy(sut.nodename, hostname, sizeof(sut.nodename));
sut.nodename[sizeof(sut.nodename)-1] = '\0';
memcpy(sut.release, osrelease, sizeof(sut.release) - 1);
strlcpy(sut.version, "1", sizeof(sut.version));
memcpy(sut.machine, machine, sizeof(sut.machine) - 1);
return copyout((caddr_t)&sut, (caddr_t)SCARG(uap, a1),
ibcs2_utsname_len);
}
case 2: /* ustat(dev_t, struct ustat *) */
{
struct ibcs2_ustat xu;
xu.f_tfree = 20000; /* XXX fixme */
xu.f_tinode = 32000;
xu.f_fname[0] = 0;
xu.f_fpack[0] = 0;
return copyout((caddr_t)&xu, (caddr_t)SCARG(uap, a2),
ibcs2_ustat_len);
}
default:
return ENOSYS;
}
}
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