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/* $OpenBSD: procfs_linux.c,v 1.9 2014/07/08 17:19:25 deraadt Exp $ */
/* $NetBSD: procfs_linux.c,v 1.2.4.1 2001/03/30 21:48:11 he Exp $ */
/*
* Copyright (c) 2001 Wasabi Systems, Inc.
* All rights reserved.
*
* Written by Frank van der Linden for Wasabi Systems, Inc.
*
* 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. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed for the NetBSD Project by
* Wasabi Systems, Inc.
* 4. The name of Wasabi Systems, Inc. may not be used to endorse
* or promote products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``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 WASABI SYSTEMS, INC
* 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/param.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/kernel.h>
#include <sys/proc.h>
#include <sys/vnode.h>
#include <miscfs/procfs/procfs.h>
#define PGTOB(p) ((unsigned long)(p) << PAGE_SHIFT)
#define PGTOKB(p) ((unsigned long)(p) << (PAGE_SHIFT - 10))
/*
* Linux compatible /proc/meminfo. Only active when the -o linux
* mountflag is used.
*/
int
procfs_domeminfo(struct proc *curp, struct proc *p, struct pfsnode *pfs,
struct uio *uio)
{
char buf[512], *cp;
int len, error;
len = snprintf(buf, sizeof buf,
" total: used: free: shared: buffers: cached:\n"
"Mem: %8lu %8lu %8lu %8lu %8lu %8lu\n"
"Swap: %8lu %8lu %8lu\n"
"MemTotal: %8lu kB\n"
"MemFree: %8lu kB\n"
"MemShared: %8lu kB\n"
"Buffers: %8lu kB\n"
"Cached: %8lu kB\n"
"SwapTotal: %8lu kB\n"
"SwapFree: %8lu kB\n",
PGTOB(uvmexp.npages),
PGTOB(uvmexp.npages - uvmexp.free),
PGTOB(uvmexp.free),
0L,
0L,
0L,
PGTOB(uvmexp.swpages),
PGTOB(uvmexp.swpginuse),
PGTOB(uvmexp.swpages - uvmexp.swpginuse),
PGTOKB(uvmexp.npages),
PGTOKB(uvmexp.free),
0L,
0L,
0L,
PGTOKB(uvmexp.swpages),
PGTOKB(uvmexp.swpages - uvmexp.swpginuse));
if (len <= 0 || len >= sizeof buf ||
len < uio->uio_offset || uio->uio_resid == 0)
return EINVAL;
len -= uio->uio_offset;
cp = buf + uio->uio_offset;
len = imin(len, uio->uio_resid);
error = uiomove(cp, len, uio);
return error;
}
int
procfs_docpuinfo(struct proc *curp, struct proc *p, struct pfsnode *pfs,
struct uio *uio)
{
char buf[512], *cp;
int len, error;
len = sizeof buf;
if (procfs_getcpuinfstr(buf, &len) < 0)
return EIO;
if (len == 0 || uio->uio_offset > sizeof(buf))
return 0;
len -= uio->uio_offset;
cp = buf + uio->uio_offset;
len = imin(len, uio->uio_resid);
if (len <= 0)
error = 0;
else
error = uiomove(cp, len, uio);
return error;
}
#ifndef __i386__
int
procfs_getcpuinfstr(char *buf, int *len)
{
*len = 0;
return 0;
}
#endif
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