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Implement linux_ustat.

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Reviewed by: bde
This commit is contained in:
Marcel Moolenaar 1999-11-27 16:55:14 +00:00
parent a51764b566
commit 408da11907
7 changed files with 118 additions and 13 deletions
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1
sys/alpha/linux/linux_dummy.c
View File

@ -68,7 +68,6 @@ DUMMY(lock);
DUMMY(mpx);
DUMMY(ulimit);
DUMMY(olduname);
DUMMY(ustat);
DUMMY(ksyslog);
DUMMY(uname);
DUMMY(vhangup);

59
sys/compat/linux/linux_stats.c
View File

@ -29,17 +29,18 @@
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/dirent.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/socketvar.h>
#include <sys/pipe.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <sys/pipe.h>
#include <i386/linux/linux.h>
#include <i386/linux/linux_proto.h>
@ -68,6 +69,14 @@ struct linux_newstat {
u_long __unused5;
};
struct linux_ustat
{
int f_tfree;
u_long f_tinode;
char f_fname[6];
char f_fpack[6];
};
static int
newstat_copyout(struct stat *buf, void *ubuf)
{
@ -272,3 +281,47 @@ linux_fstatfs(struct proc *p, struct linux_fstatfs_args *args)
return copyout((caddr_t)&linux_statfs_buf, (caddr_t)args->buf,
sizeof(struct linux_statfs_buf));
}
int
linux_ustat(p, uap)
struct proc *p;
struct linux_ustat_args *uap;
{
struct linux_ustat lu;
dev_t dev;
struct vnode *vp;
struct statfs *stat;
int error;
#ifdef DEBUG
printf("Linux-emul(%ld): ustat(%d, *)\n", (long)p->p_pid, uap->dev);
#endif
/*
* lu.f_fname and lu.f_fpack are not used. They are always zeroed.
* lu.f_tinode and lu.f_tfree are set from the device's super block.
*/
bzero(&lu, sizeof(lu));
/*
* XXX - Don't return an error if we can't find a vnode for the
* device. Our dev_t is 32-bits whereas Linux only has a 16-bits
* dev_t. The dev_t that is used now may as well be a truncated
* dev_t returned from previous syscalls. Just return a bzeroed
* ustat in that case.
*/
dev = makebdev(uap->dev >> 8, uap->dev & 0xFF);
if (vfinddev(dev, VBLK, &vp)) {
if (vp->v_mount == NULL)
return (EINVAL);
stat = &(vp->v_mount->mnt_stat);
error = VFS_STATFS(vp->v_mount, stat, p);
if (error)
return (error);
lu.f_tfree = stat->f_bfree;
lu.f_tinode = stat->f_ffree;
}
return (copyout(&lu, uap->ubuf, sizeof(lu)));
}

1
sys/i386/linux/linux_dummy.c
View File

@ -68,7 +68,6 @@ DUMMY(lock);
DUMMY(mpx);
DUMMY(ulimit);
DUMMY(olduname);
DUMMY(ustat);
DUMMY(ksyslog);
DUMMY(uname);
DUMMY(vhangup);

5
sys/i386/linux/linux_proto.h
View File

@ -3,7 +3,7 @@
*
* DO NOT EDIT-- this file is automatically generated.
* $FreeBSD$
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.26 1999/09/29 15:12:14 marcel Exp
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.27 1999/11/27 16:50:54 marcel Exp
*/
#ifndef _LINUX_SYSPROTO_H_
@ -179,7 +179,8 @@ struct linux_olduname_args {
register_t dummy;
};
struct linux_ustat_args {
register_t dummy;
linux_dev_t dev; char dev_[PAD_(linux_dev_t)];
struct linux_ustat * ubuf; char ubuf_[PAD_(struct linux_ustat *)];
};
struct linux_sigaction_args {
int sig; char sig_[PAD_(int)];

59
sys/i386/linux/linux_stats.c
View File

@ -29,17 +29,18 @@
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/conf.h>
#include <sys/dirent.h>
#include <sys/file.h>
#include <sys/filedesc.h>
#include <sys/socketvar.h>
#include <sys/pipe.h>
#include <sys/proc.h>
#include <sys/mount.h>
#include <sys/namei.h>
#include <sys/socketvar.h>
#include <sys/stat.h>
#include <sys/systm.h>
#include <sys/vnode.h>
#include <sys/pipe.h>
#include <i386/linux/linux.h>
#include <i386/linux/linux_proto.h>
@ -68,6 +69,14 @@ struct linux_newstat {
u_long __unused5;
};
struct linux_ustat
{
int f_tfree;
u_long f_tinode;
char f_fname[6];
char f_fpack[6];
};
static int
newstat_copyout(struct stat *buf, void *ubuf)
{
@ -272,3 +281,47 @@ linux_fstatfs(struct proc *p, struct linux_fstatfs_args *args)
return copyout((caddr_t)&linux_statfs_buf, (caddr_t)args->buf,
sizeof(struct linux_statfs_buf));
}
int
linux_ustat(p, uap)
struct proc *p;
struct linux_ustat_args *uap;
{
struct linux_ustat lu;
dev_t dev;
struct vnode *vp;
struct statfs *stat;
int error;
#ifdef DEBUG
printf("Linux-emul(%ld): ustat(%d, *)\n", (long)p->p_pid, uap->dev);
#endif
/*
* lu.f_fname and lu.f_fpack are not used. They are always zeroed.
* lu.f_tinode and lu.f_tfree are set from the device's super block.
*/
bzero(&lu, sizeof(lu));
/*
* XXX - Don't return an error if we can't find a vnode for the
* device. Our dev_t is 32-bits whereas Linux only has a 16-bits
* dev_t. The dev_t that is used now may as well be a truncated
* dev_t returned from previous syscalls. Just return a bzeroed
* ustat in that case.
*/
dev = makebdev(uap->dev >> 8, uap->dev & 0xFF);
if (vfinddev(dev, VBLK, &vp)) {
if (vp->v_mount == NULL)
return (EINVAL);
stat = &(vp->v_mount->mnt_stat);
error = VFS_STATFS(vp->v_mount, stat, p);
if (error)
return (error);
lu.f_tfree = stat->f_bfree;
lu.f_tinode = stat->f_ffree;
}
return (copyout(&lu, uap->ubuf, sizeof(lu)));
}

2
sys/i386/linux/linux_syscall.h
View File

@ -3,7 +3,7 @@
*
* DO NOT EDIT-- this file is automatically generated.
* $FreeBSD$
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.26 1999/09/29 15:12:14 marcel Exp
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.27 1999/11/27 16:50:54 marcel Exp
*/
#define LINUX_SYS_linux_setup 0

4
sys/i386/linux/linux_sysent.c
View File

@ -3,7 +3,7 @@
*
* DO NOT EDIT-- this file is automatically generated.
* $FreeBSD$
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.26 1999/09/29 15:12:14 marcel Exp
* created from FreeBSD: src/sys/i386/linux/syscalls.master,v 1.27 1999/11/27 16:50:54 marcel Exp
*/
#include "opt_compat.h"
@ -77,7 +77,7 @@ struct sysent linux_sysent[] = {
{ 0, (sy_call_t *)linux_olduname }, /* 59 = linux_olduname */
{ 1, (sy_call_t *)umask }, /* 60 = umask */
{ 1, (sy_call_t *)chroot }, /* 61 = chroot */
{ 0, (sy_call_t *)linux_ustat }, /* 62 = linux_ustat */
{ 2, (sy_call_t *)linux_ustat }, /* 62 = linux_ustat */
{ 2, (sy_call_t *)dup2 }, /* 63 = dup2 */
{ 0, (sy_call_t *)getppid }, /* 64 = getppid */
{ 0, (sy_call_t *)getpgrp }, /* 65 = getpgrp */