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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
|
/* guestfish - the filesystem interactive shell
* Copyright (C) 2010 Red Hat Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <stdarg.h>
#include <string.h>
#include <unistd.h>
#include "fish.h"
#include "prepopts.h"
/* Split "/dev/VG/LV" into "VG" and "LV". This function should
* probably do more checks.
*/
static int
vg_lv_parse (const char *device, char **vg, char **lv)
{
if (STRPREFIX (device, "/dev/"))
device += 5;
const char *p = strchr (device, '/');
if (p == NULL)
return -1;
if (vg) {
*vg = strndup (device, p - device);
if (*vg == NULL) {
perror ("strndup");
exit (EXIT_FAILURE);
}
}
if (lv) {
*lv = strdup (p+1);
if (*lv == NULL) {
perror ("strndup");
exit (EXIT_FAILURE);
}
}
return 0;
}
void
prep_prelaunch_lv (const char *filename, prep_data *data)
{
if (vg_lv_parse (data->params[0], NULL, NULL) == -1)
prep_error (data, filename, _("incorrect format for LV name, use '/dev/VG/LV'"));
if (alloc_disk (filename, data->params[1], 0, 1) == -1)
prep_error (data, filename, _("failed to allocate disk"));
}
void
prep_postlaunch_lv (const char *filename, prep_data *data, const char *device)
{
if (guestfs_part_disk (g, device, data->params[2]) == -1)
prep_error (data, filename, _("failed to partition disk: %s"),
guestfs_last_error (g));
char *vg;
char *lv;
if (vg_lv_parse (data->params[0], &vg, &lv) == -1)
prep_error (data, filename, _("incorrect format for LV name, use '/dev/VG/LV'"));
char *part;
if (asprintf (&part, "%s1", device) == -1) {
perror ("asprintf");
exit (EXIT_FAILURE);
}
if (guestfs_pvcreate (g, part) == -1)
prep_error (data, filename, _("failed to create PV: %s: %s"),
part, guestfs_last_error (g));
char *parts[] = { part, NULL };
if (guestfs_vgcreate (g, vg, parts) == -1)
prep_error (data, filename, _("failed to create VG: %s: %s"),
vg, guestfs_last_error (g));
/* Create the smallest possible LV, then resize it to fill
* all available space.
*/
if (guestfs_lvcreate (g, lv, vg, 1) == -1)
prep_error (data, filename, _("failed to create LV: /dev/%s/%s: %s"),
vg, lv, guestfs_last_error (g));
if (guestfs_lvresize_free (g, data->params[0], 100) == -1)
prep_error (data, filename,
_("failed to resize LV to full size: %s: %s"),
data->params[0], guestfs_last_error (g));
free (part);
free (vg);
free (lv);
}
|
