/* $NetBSD: rumpvfs_compat50.c,v 1.2 2016/01/26 23:12:18 pooka Exp $ */
/*
* Copyright (c) 2009 Antti Kantee. All Rights Reserved.
*
* Development of this software was supported by the Nokia Foundation
*
* 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 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: rumpvfs_compat50.c,v 1.2 2016/01/26 23:12:18 pooka Exp $");
#include <sys/param.h>
#include <sys/kmem.h>
#include <sys/sched.h>
#include <sys/syscallargs.h>
#include <sys/vnode.h>
#include <compat/sys/time.h>
#include <rump-sys/vfs.h>
#include <rump/rump.h>
/*
* XXX: these are handwritten for now. They provide compat for
* calling post-time_t file systems from a pre-time_t userland.
* (mknod is missing. I don't care very much)
*
* Doing remote system calls with these does not (obviously) work.
*/
#if BYTE_ORDER == BIG_ENDIAN
#define SPARG(p,k) ((p)->k.be.datum)
#else /* LITTLE_ENDIAN, I hope dearly */
#define SPARG(p,k) ((p)->k.le.datum)
#endif
struct vattr50 {
enum vtype va_type; /* vnode type (for create) */
mode_t va_mode; /* files access mode and type */
nlink_t va_nlink; /* number of references to file */
uid_t va_uid; /* owner user id */
gid_t va_gid; /* owner group id */
u_long va_fsid; /* file system id (dev for now) */
ino_t va_fileid; /* file id */
u_quad_t va_size; /* file size in bytes */
long va_blocksize; /* blocksize preferred for i/o */
struct timespec50 va_atime; /* time of last access */
struct timespec50 va_mtime; /* time of last modification */
struct timespec50 va_ctime; /* time file changed */
struct timespec50 va_birthtime; /* time file created */
u_long va_gen; /* generation number of file */
u_long va_flags; /* flags defined for file */
uint32_t va_rdev; /* device the special file represents */
u_quad_t va_bytes; /* bytes of disk space held by file */
u_quad_t va_filerev; /* file modification number */
u_int va_vaflags; /* operations flags, see below */
long va_spare; /* remain quad aligned */
};
/*
* XXX: types. But I don't want to start playing compat games in
* the userspace namespace too
*/
void
rump_vattr50_to_vattr(const struct vattr *_va50, struct vattr *va)
{
const struct vattr50 *va50 = (const struct vattr50 *)_va50;
va->va_type = va50->va_type;
va->va_mode = va50->va_mode;
va->va_nlink = va50->va_nlink;
va->va_uid = va50->va_uid;
va->va_gid = va50->va_gid;
va->va_fsid = (long)va50->va_fsid;
va->va_fileid = va50->va_fileid;
va->va_size = va50->va_size;
va->va_blocksize = va50->va_blocksize;
timespec50_to_timespec(&va50->va_atime, &va->va_atime);
timespec50_to_timespec(&va50->va_ctime, &va->va_ctime);
timespec50_to_timespec(&va50->va_mtime, &va->va_mtime);
timespec50_to_timespec(&va50->va_birthtime, &va->va_birthtime);
va->va_gen = va50->va_gen;
va->va_flags = va50->va_flags;
va->va_rdev = (int32_t)va50->va_rdev;
va->va_bytes = va50->va_bytes;
va->va_filerev = va50->va_filerev;
va->va_vaflags = va50->va_flags;
}
void
rump_vattr_to_vattr50(const struct vattr *va, struct vattr *_va50)
{
struct vattr50 *va50 = (struct vattr50 *)_va50;
va50->va_type = va->va_type;
va50->va_mode = va->va_mode;
va50->va_nlink = va->va_nlink;
va50->va_uid = va->va_uid;
va50->va_gid = va->va_gid;
va50->va_fsid = (u_long)va->va_fsid;
va50->va_fileid = va->va_fileid;
va50->va_size = va->va_size;
va50->va_blocksize = va->va_blocksize;
timespec_to_timespec50(&va->va_atime, &va50->va_atime);
timespec_to_timespec50(&va->va_ctime, &va50->va_ctime);
timespec_to_timespec50(&va->va_mtime, &va50->va_mtime);
timespec_to_timespec50(&va->va_birthtime, &va50->va_birthtime);
va50->va_gen = va->va_gen;
va50->va_flags = va->va_flags;
va50->va_rdev = (uint32_t)va->va_rdev;
va50->va_bytes = va->va_bytes;
va50->va_filerev = va->va_filerev;
va50->va_vaflags = va->va_flags;
}