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freebsd/sys/i386/linux/linux_stats.c
Bruce Evans 1f3dad5a8d Completed function declarations and added prototypes.
Removed some unnecessary #includes.

Fixed warnings about nested externs.
1995-11-22 07:43:53 +00:00

267 lines
7.5 KiB
C

/*-
* Copyright (c) 1994-1995 Søren Schmidt
* 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
* in this position and unchanged.
* 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 withough 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.
*
* $Id: linux_stats.c,v 1.2 1995/08/28 09:18:38 julian Exp $
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/dirent.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/vnode.h>
#include <i386/linux/linux.h>
#include <i386/linux/sysproto.h>
struct linux_newstat {
unsigned short stat_dev;
unsigned short __pad1;
unsigned long stat_ino;
unsigned short stat_mode;
unsigned short stat_nlink;
unsigned short stat_uid;
unsigned short stat_gid;
unsigned short stat_rdev;
unsigned short __pad2;
unsigned long stat_size;
unsigned long stat_blksize;
unsigned long stat_blocks;
unsigned long stat_atime;
unsigned long __unused1;
unsigned long stat_mtime;
unsigned long __unused2;
unsigned long stat_ctime;
unsigned long __unused3;
unsigned long __unused4;
unsigned long __unused5;
};
struct linux_newstat_args {
char *path;
struct linux_newstat *buf;
};
static int
newstat_copyout(struct stat *buf, void *ubuf)
{
struct linux_newstat tbuf;
tbuf.stat_dev = (buf->st_dev & 0xff) | ((buf->st_dev & 0xff00)<<10);
tbuf.stat_ino = buf->st_ino;
tbuf.stat_mode = buf->st_mode;
tbuf.stat_nlink = buf->st_nlink;
tbuf.stat_uid = buf->st_uid;
tbuf.stat_gid = buf->st_gid;
tbuf.stat_rdev = buf->st_rdev;
tbuf.stat_size = buf->st_size;
tbuf.stat_atime = buf->st_atime;
tbuf.stat_mtime = buf->st_mtime;
tbuf.stat_ctime = buf->st_ctime;
tbuf.stat_blksize = buf->st_blksize;
tbuf.stat_blocks = buf->st_blocks;
return copyout(&tbuf, ubuf, sizeof(tbuf));
}
int
linux_newstat(struct proc *p, struct linux_newstat_args *args, int *retval)
{
struct stat buf;
struct linux_newstat tbuf;
struct nameidata nd;
int error;
#ifdef DEBUG
printf("Linux-emul(%d): newstat(%s, *)\n", p->p_pid, args->path);
#endif
NDINIT(&nd, LOOKUP, LOCKLEAF|FOLLOW, UIO_USERSPACE, args->path, p);
error = namei(&nd);
if (!error) {
error = vn_stat(nd.ni_vp, &buf, p);
vput(nd.ni_vp);
}
if (!error)
error = newstat_copyout(&buf, args->buf);
return error;
}
int
linux_newlstat(struct proc *p, struct linux_newstat_args *args, int *retval)
{
struct stat buf;
struct linux_newstat tbuf;
struct nameidata nd;
int error;
#ifdef DEBUG
printf("Linux-emul(%d): newlstat(%s, *)\n", p->p_pid, args->path);
#endif
NDINIT(&nd, LOOKUP, LOCKLEAF|FOLLOW, UIO_USERSPACE, args->path, p);
error = namei(&nd);
if (!error) {
error = vn_stat(nd.ni_vp, &buf, p);
vput(nd.ni_vp);
}
if (!error)
error = newstat_copyout(&buf, args->buf);
return error;
}
struct linux_newfstat_args {
int fd;
struct linux_newstat *buf;
};
int
linux_newfstat(struct proc *p, struct linux_newfstat_args *args, int *retval)
{
struct linux_newstat tbuf;
struct filedesc *fdp = p->p_fd;
struct file *fp;
struct stat buf;
int error;
#ifdef DEBUG
printf("Linux-emul(%d): newlstat(%d, *)\n", p->p_pid, args->fd);
#endif
if ((unsigned)args->fd >= fdp->fd_nfiles
|| (fp = fdp->fd_ofiles[args->fd]) == NULL)
return EBADF;
switch (fp->f_type) {
case DTYPE_VNODE:
error = vn_stat((struct vnode *)fp->f_data, &buf, p);
break;
case DTYPE_SOCKET:
error = soo_stat((struct socket *)fp->f_data, &buf);
break;
default:
panic("LINUX newfstat");
}
if (!error)
error = newstat_copyout(&buf, args->buf);
return error;
}
struct linux_statfs {
long ftype;
long fbsize;
long fblocks;
long fbfree;
long fbavail;
long ffiles;
long fffree;
linux_fsid_t ffsid;
long fnamelen;
long fspare[6];
};
struct linux_statfs_args {
char *path;
struct statfs *buf;
};
int
linux_statfs(struct proc *p, struct linux_statfs_args *args, int *retval)
{
struct mount *mp;
struct nameidata *ndp;
struct statfs *bsd_statfs;
struct nameidata nd;
struct linux_statfs linux_statfs;
int error;
#ifdef DEBUG
printf("Linux-emul(%d): statfs(%s, *)\n", p->p_pid, args->path);
#endif
ndp = &nd;
NDINIT(ndp, LOOKUP, FOLLOW, UIO_USERSPACE, args->path, curproc);
if (error = namei(ndp))
return error;
mp = ndp->ni_vp->v_mount;
bsd_statfs = &mp->mnt_stat;
vrele(ndp->ni_vp);
if (error = VFS_STATFS(mp, bsd_statfs, p))
return error;
bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
linux_statfs.ftype = bsd_statfs->f_type;
linux_statfs.fbsize = bsd_statfs->f_bsize;
linux_statfs.fblocks = bsd_statfs->f_blocks;
linux_statfs.fbfree = bsd_statfs->f_bfree;
linux_statfs.fbavail = bsd_statfs->f_bavail;
linux_statfs.fffree = bsd_statfs->f_ffree;
linux_statfs.ffiles = bsd_statfs->f_files;
linux_statfs.ffsid.val[0] = bsd_statfs->f_fsid.val[0];
linux_statfs.ffsid.val[1] = bsd_statfs->f_fsid.val[1];
linux_statfs.fnamelen = MAXNAMLEN;
return copyout((caddr_t)&linux_statfs, (caddr_t)args->buf,
sizeof(struct linux_statfs));
}
struct linux_fstatfs_args {
int fd;
struct statfs *buf;
};
int
linux_fstatfs(struct proc *p, struct linux_fstatfs_args *args, int *retval)
{
struct file *fp;
struct mount *mp;
struct statfs *bsd_statfs;
struct linux_statfs linux_statfs;
int error;
#ifdef DEBUG
printf("Linux-emul(%d): fstatfs(%d, *)\n", p->p_pid, args->fd);
#endif
if (error = getvnode(p->p_fd, args->fd, &fp))
return error;
mp = ((struct vnode *)fp->f_data)->v_mount;
bsd_statfs = &mp->mnt_stat;
if (error = VFS_STATFS(mp, bsd_statfs, p))
return error;
bsd_statfs->f_flags = mp->mnt_flag & MNT_VISFLAGMASK;
linux_statfs.ftype = bsd_statfs->f_type;
linux_statfs.fbsize = bsd_statfs->f_bsize;
linux_statfs.fblocks = bsd_statfs->f_blocks;
linux_statfs.fbfree = bsd_statfs->f_bfree;
linux_statfs.fbavail = bsd_statfs->f_bavail;
linux_statfs.fffree = bsd_statfs->f_ffree;
linux_statfs.ffiles = bsd_statfs->f_files;
linux_statfs.ffsid.val[0] = bsd_statfs->f_fsid.val[0];
linux_statfs.ffsid.val[1] = bsd_statfs->f_fsid.val[1];
linux_statfs.fnamelen = MAXNAMLEN;
return copyout((caddr_t)&linux_statfs, (caddr_t)args->buf,
sizeof(struct linux_statfs));
}