freebsd-dev/lib/libprocstat/smbfs.c

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/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2005-2009 Stanislav Sedov <stas@FreeBSD.org>
* 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 AND CONTRIBUTORS ``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>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/stat.h>
#include <sys/time.h>
#include <sys/vnode.h>
#define _KERNEL
#include <sys/mount.h>
#undef _KERNEL
#include <netinet/in.h>
#include <assert.h>
#include <err.h>
#include <kvm.h>
#include <stdlib.h>
#include <fs/smbfs/smbfs.h>
#include <fs/smbfs/smbfs_node.h>
#include "libprocstat.h"
#include "common_kvm.h"
int
smbfs_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
{
struct smbnode node;
struct mount mnt;
int error;
assert(kd);
assert(vn);
error = kvm_read_all(kd, (unsigned long)VTOSMB(vp), &node,
sizeof(node));
if (error != 0) {
warnx("can't read smbfs fnode at %p", (void *)VTOSMB(vp));
return (1);
}
error = kvm_read_all(kd, (unsigned long)getvnodemount(vp), &mnt,
sizeof(mnt));
if (error != 0) {
warnx("can't read mount at %p for vnode %p",
(void *)getvnodemount(vp), vp);
return (1);
}
vn->vn_fileid = node.n_ino;
if (vn->vn_fileid == 0)
vn->vn_fileid = 2;
vn->vn_fsid = mnt.mnt_stat.f_fsid.val[0];
return (0);
}