1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/* $OpenBSD: softraid.c,v 1.4 2015/10/03 16:56:52 krw Exp $ */
/*
* Copyright (c) 2012 Joel Sing <jsing@openbsd.org>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/dkio.h>
#include <sys/ioctl.h>
#include <dev/biovar.h>
#include <err.h>
#include <stdio.h>
#include <string.h>
#include "installboot.h"
static int sr_volume(int, char *, int *, int *);
void
sr_installboot(int devfd, char *dev)
{
int vol = -1, ndisks = 0, disk;
/* Use the normal process if this is not a softraid volume. */
if (!sr_volume(devfd, dev, &vol, &ndisks)) {
md_installboot(devfd, dev);
return;
}
/* Install boot loader in softraid volume. */
sr_install_bootldr(devfd, dev);
/* Install boot block on each disk that is part of this volume. */
for (disk = 0; disk < ndisks; disk++)
sr_install_bootblk(devfd, vol, disk);
}
int
sr_volume(int devfd, char *dev, int *vol, int *disks)
{
struct bioc_inq bi;
struct bioc_vol bv;
int i;
/*
* Determine if the given device is a softraid volume.
*/
/* Get volume information. */
memset(&bi, 0, sizeof(bi));
if (ioctl(devfd, BIOCINQ, &bi) == -1)
return 0;
/* XXX - softraid volumes will always have a "softraid0" controller. */
if (strncmp(bi.bi_dev, "softraid0", sizeof("softraid0")))
return 0;
/*
* XXX - this only works with the real disk name (e.g. sd0) - this
* should be extracted from the device name, or better yet, fixed in
* the softraid ioctl.
*/
/* Locate specific softraid volume. */
for (i = 0; i < bi.bi_novol; i++) {
memset(&bv, 0, sizeof(bv));
bv.bv_volid = i;
if (ioctl(devfd, BIOCVOL, &bv) == -1)
err(1, "BIOCVOL");
if (strncmp(dev, bv.bv_dev, sizeof(bv.bv_dev)) == 0) {
*vol = i;
*disks = bv.bv_nodisk;
break;
}
}
if (verbose)
fprintf(stderr, "%s: softraid volume with %i disk(s)\n",
dev, *disks);
return 1;
}
|
