freebsd-skq/lib/libprocstat/udf.c
Pedro F. Giffuni 5e53a4f90f lib: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using mis-identified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-26 02:00:33 +00:00

104 lines
3.0 KiB
C

/*-
* 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/udf/ecma167-udf.h>
#include "libprocstat.h"
#include "common_kvm.h"
/* XXX */
struct udf_mnt {
int im_flags;
struct mount *im_mountp;
struct g_consumer *im_cp;
struct bufobj *im_bo;
struct cdev *im_dev;
struct vnode *im_devvp;
int bsize;
int bshift;
int bmask;
uint32_t part_start;
uint32_t part_len;
uint64_t root_id;
struct long_ad root_icb;
int p_sectors;
int s_table_entries;
void *s_table;
void *im_d2l;
};
struct udf_node {
struct vnode *i_vnode;
struct udf_mnt *udfmp;
ino_t hash_id;
long diroff;
struct file_entry *fentry;
};
#define VTON(vp) ((struct udf_node *)((vp)->v_data))
int
udf_filestat(kvm_t *kd, struct vnode *vp, struct vnstat *vn)
{
struct udf_node node;
struct udf_mnt mnt;
int error;
assert(kd);
assert(vn);
error = kvm_read_all(kd, (unsigned long)VTON(vp), &node, sizeof(node));
if (error != 0) {
warnx("can't read udf fnode at %p", (void *)VTON(vp));
return (1);
}
error = kvm_read_all(kd, (unsigned long)node.udfmp, &mnt, sizeof(mnt));
if (error != 0) {
warnx("can't read udf_mnt at %p for vnode %p",
(void *)node.udfmp, vp);
return (1);
}
vn->vn_fileid = node.hash_id;
vn->vn_fsid = dev2udev(kd, mnt.im_dev);
return (0);
}