NetBSD-5.0.2/sys/compat/netbsd32/netbsd32_compat_30.c
/* $NetBSD: netbsd32_compat_30.c,v 1.26 2008/06/24 11:18:15 ad Exp $ */
/*
* Copyright (c) 1998, 2001 Matthew R. Green
* 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.
*
* 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: netbsd32_compat_30.c,v 1.26 2008/06/24 11:18:15 ad Exp $");
#include "opt_nfsserver.h"
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <sys/mount.h>
#include <sys/socket.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/ktrace.h>
#include <sys/resourcevar.h>
#include <sys/vnode.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/namei.h>
#include <sys/statvfs.h>
#include <sys/syscallargs.h>
#include <sys/proc.h>
#include <sys/dirent.h>
#include <sys/kauth.h>
#include <sys/vfs_syscalls.h>
#include <compat/netbsd32/netbsd32.h>
#include <compat/netbsd32/netbsd32_syscallargs.h>
#include <compat/netbsd32/netbsd32_conv.h>
#include <compat/sys/mount.h>
int
compat_30_netbsd32_getdents(struct lwp *l, const struct compat_30_netbsd32_getdents_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_charp) buf;
syscallarg(netbsd32_size_t) count;
} */
file_t *fp;
int error, done;
char *buf;
netbsd32_size_t count;
/* Limit the size on any kernel buffers used by VOP_READDIR */
count = min(MAXBSIZE, SCARG(uap, count));
/* fd_getvnode() will use the descriptor for us */
if ((error = fd_getvnode(SCARG(uap, fd), &fp)) != 0)
return (error);
if ((fp->f_flag & FREAD) == 0) {
error = EBADF;
goto out;
}
buf = malloc(count, M_TEMP, M_WAITOK);
error = vn_readdir(fp, buf, UIO_SYSSPACE, count, &done, l, 0, 0);
if (error == 0) {
*retval = netbsd32_to_dirent12(buf, done);
error = copyout(buf, SCARG_P32(uap, buf), *retval);
}
free(buf, M_TEMP);
out:
fd_putfile(SCARG(uap, fd));
return (error);
}
int
compat_30_netbsd32___stat13(struct lwp *l, const struct compat_30_netbsd32___stat13_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(netbsd32_stat13p_t) ub;
} */
struct netbsd32_stat13 sb32;
struct stat sb;
int error;
const char *path;
path = SCARG_P32(uap, path);
error = do_sys_stat(path, FOLLOW, &sb);
if (error)
return (error);
netbsd32_from___stat13(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
return (error);
}
int
compat_30_netbsd32___fstat13(struct lwp *l, const struct compat_30_netbsd32___fstat13_args *uap, register_t *retval)
{
/* {
syscallarg(int) fd;
syscallarg(netbsd32_stat13p_t) sb;
} */
int fd = SCARG(uap, fd);
file_t *fp;
struct netbsd32_stat13 sb32;
struct stat ub;
int error = 0;
if ((fp = fd_getfile(fd)) == NULL)
return (EBADF);
error = (*fp->f_ops->fo_stat)(fp, &ub);
fd_putfile(fd);
if (error == 0) {
netbsd32_from___stat13(&ub, &sb32);
error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
}
return (error);
}
int
compat_30_netbsd32___lstat13(struct lwp *l, const struct compat_30_netbsd32___lstat13_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) path;
syscallarg(netbsd32_stat13p_t) ub;
} */
struct netbsd32_stat13 sb32;
struct stat sb;
int error;
const char *path;
path = SCARG_P32(uap, path);
error = do_sys_stat(path, NOFOLLOW, &sb);
if (error)
return (error);
netbsd32_from___stat13(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, ub), sizeof(sb32));
return (error);
}
int
compat_30_netbsd32_fhstat(struct lwp *l, const struct compat_30_netbsd32_fhstat_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_fhandlep_t) fhp;
syscallarg(netbsd32_stat13p_t) sb;
} */
struct stat sb;
struct netbsd32_stat13 sb32;
int error;
struct compat_30_fhandle fh;
struct mount *mp;
struct vnode *vp;
/*
* Must be super user
*/
if ((error = kauth_authorize_system(l->l_cred,
KAUTH_SYSTEM_FILEHANDLE, 0, NULL, NULL, NULL)))
return (error);
if ((error = copyin(SCARG_P32(uap, fhp), &fh, sizeof(fh))) != 0)
return (error);
if ((mp = vfs_getvfs(&fh.fh_fsid)) == NULL)
return (ESTALE);
if (mp->mnt_op->vfs_fhtovp == NULL)
return EOPNOTSUPP;
if ((error = VFS_FHTOVP(mp, (struct fid*)&fh.fh_fid, &vp)))
return (error);
error = vn_stat(vp, &sb);
vput(vp);
if (error)
return (error);
netbsd32_from___stat13(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb));
return (error);
}
int
compat_30_netbsd32_fhstatvfs1(struct lwp *l, const struct compat_30_netbsd32_fhstatvfs1_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_fhandlep_t) fhp;
syscallarg(netbsd32_statvfsp_t) buf;
syscallarg(int) flags;
} */
struct statvfs *sbuf;
struct netbsd32_statvfs *s32;
int error;
sbuf = STATVFSBUF_GET();
error = do_fhstatvfs(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, sbuf,
SCARG(uap, flags));
if (error != 0) {
s32 = malloc(sizeof *s32, M_TEMP, M_WAITOK);
netbsd32_from_statvfs(sbuf, s32);
error = copyout(s32, SCARG_P32(uap, buf), sizeof *s32);
free(s32, M_TEMP);
}
STATVFSBUF_PUT(sbuf);
return (error);
}
int
compat_30_netbsd32_socket(struct lwp *l, const struct compat_30_netbsd32_socket_args *uap, register_t *retval)
{
/* {
syscallarg(int) domain;
syscallarg(int) type;
syscallarg(int) protocol;
} */
struct compat_30_sys_socket_args ua;
NETBSD32TO64_UAP(domain);
NETBSD32TO64_UAP(type);
NETBSD32TO64_UAP(protocol);
return (compat_30_sys_socket(l, &ua, retval));
}
int
compat_30_netbsd32_getfh(struct lwp *l, const struct compat_30_netbsd32_getfh_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_charp) fname;
syscallarg(netbsd32_compat_30_fhandlep_t) fhp;
} */
struct compat_30_sys_getfh_args ua;
NETBSD32TOP_UAP(fname, const char);
NETBSD32TOP_UAP(fhp, struct compat_30_fhandle);
/* Lucky for us a fhandle_t doesn't change sizes */
return (compat_30_sys_getfh(l, &ua, retval));
}
int
compat_30_netbsd32_sys___fhstat30(struct lwp *l, const struct compat_30_netbsd32_sys___fhstat30_args *uap, register_t *retval)
{
/* {
syscallarg(const netbsd32_fhandlep_t) fhp;
syscallarg(netbsd32_statp_t) sb;
} */
struct stat sb;
struct netbsd32_stat sb32;
int error;
error = do_fhstat(l, SCARG_P32(uap, fhp), FHANDLE_SIZE_COMPAT, &sb);
if (error)
return error;
netbsd32_from___stat30(&sb, &sb32);
error = copyout(&sb32, SCARG_P32(uap, sb), sizeof(sb32));
return error;
}
/*
* Open a file given a file handle.
*
* Check permissions, allocate an open file structure,
* and call the device open routine if any.
*/
int
compat_30_netbsd32_fhopen(struct lwp *l, const struct compat_30_netbsd32_fhopen_args *uap, register_t *retval)
{
/* {
syscallarg(const fhandle_t *) fhp;
syscallarg(int) flags;
} */
struct compat_30_sys_fhopen_args ua;
NETBSD32TOP_UAP(fhp, struct compat_30_fhandle);
NETBSD32TO64_UAP(flags);
return (compat_30_sys_fhopen(l, &ua, retval));
}