xref: /dragonfly/usr.bin/fstat/hammer2.c (revision 0212bfce)
1 /*
2  * Copyright (c) 2018 The DragonFly Project.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in
12  *    the documentation and/or other materials provided with the
13  *    distribution.
14  * 3. Neither the name of The DragonFly Project nor the names of its
15  *    contributors may be used to endorse or promote products derived
16  *    from this software without specific, prior written permission.
17  *
18  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
21  * FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE
22  * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
23  * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
24  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
25  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
26  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
27  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
28  * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  */
31 
32 #define _KERNEL_STRUCTURES
33 
34 #include <sys/param.h>
35 #include <sys/stat.h>
36 #include <sys/time.h>
37 
38 #include <kvm.h>
39 #include <stdio.h>
40 
41 #include <sys/vnode.h>
42 #include <sys/mount.h>
43 #include <stddef.h>
44 #include <vfs/hammer2/hammer2.h>
45 #include <vfs/hammer2/hammer2_disk.h>
46 
47 #include "fstat.h"
48 
49 int
50 hammer2_filestat(struct vnode *vp, struct filestat *fsp)
51 {
52 	struct hammer2_inode ino;
53 
54 	if (!kread(VTOI(vp), &ino, sizeof(ino))) {
55 		dprintf(stderr, "can't read hammer2_inode at %p for pid %d\n",
56 		    (void *)VTOI(vp), Pid);
57 		return 0;
58 	}
59 
60 	fsp->fsid = fsp->rdev = fstat_dev2udev(vp->v_rdev);
61 	fsp->mode = ino.meta.mode | mtrans(vp->v_type);
62 	fsp->fileid = ino.meta.inum;
63 	fsp->size = ino.meta.size;
64 	return 1;
65 }
66