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
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*-
* Copyright (c) 2004-2005 Pawel Jakub Dawidek <pjd@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 AUTHORS 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 AUTHORS 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 <errno.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <strings.h>
#include <assert.h>
#include <libgeom.h>
#include <geom/label/g_label.h>
#include "core/geom.h"
#include "misc/subr.h"
#ifdef RESCUE
#define PUBSYM(x) glabel_##x
#else
#define PUBSYM(x) x
#endif
uint32_t PUBSYM(lib_version) = G_LIB_VERSION;
uint32_t PUBSYM(version) = G_LABEL_VERSION;
static void label_main(struct gctl_req *req, unsigned flags);
static void label_clear(struct gctl_req *req);
static void label_dump(struct gctl_req *req);
static void label_label(struct gctl_req *req);
struct g_command PUBSYM(class_commands)[] = {
{ "clear", G_FLAG_VERBOSE, label_main, G_NULL_OPTS, NULL,
"[-v] dev ..."
},
{ "create", G_FLAG_VERBOSE | G_FLAG_LOADKLD, NULL, G_NULL_OPTS,
NULL, "[-v] name dev"
},
{ "destroy", G_FLAG_VERBOSE, NULL,
{
{ 'f', "force", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
NULL, "[-fv] name ..."
},
{ "dump", 0, label_main, G_NULL_OPTS, NULL,
"dev ..."
},
{ "label", G_FLAG_VERBOSE | G_FLAG_LOADKLD, label_main, G_NULL_OPTS,
NULL, "[-v] name dev"
},
{ "stop", G_FLAG_VERBOSE, NULL,
{
{ 'f', "force", NULL, G_TYPE_BOOL },
G_OPT_SENTINEL
},
NULL, "[-fv] name ..."
},
G_CMD_SENTINEL
};
static int verbose = 0;
static void
label_main(struct gctl_req *req, unsigned flags)
{
const char *name;
if ((flags & G_FLAG_VERBOSE) != 0)
verbose = 1;
name = gctl_get_ascii(req, "verb");
if (name == NULL) {
gctl_error(req, "No '%s' argument.", "verb");
return;
}
if (strcmp(name, "label") == 0)
label_label(req);
else if (strcmp(name, "clear") == 0)
label_clear(req);
else if (strcmp(name, "dump") == 0)
label_dump(req);
else
gctl_error(req, "Unknown command: %s.", name);
}
static void
label_label(struct gctl_req *req)
{
struct g_label_metadata md;
const char *name, *label;
u_char sector[512];
int error, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs != 2) {
gctl_error(req, "Invalid number of arguments.");
return;
}
/*
* Clear last sector first to spoil all components if device exists.
*/
name = gctl_get_ascii(req, "arg1");
error = g_metadata_clear(name, NULL);
if (error != 0) {
gctl_error(req, "Can't store metadata on %s: %s.", name,
strerror(error));
return;
}
strlcpy(md.md_magic, G_LABEL_MAGIC, sizeof(md.md_magic));
md.md_version = G_LABEL_VERSION;
label = gctl_get_ascii(req, "arg0");
strlcpy(md.md_label, label, sizeof(md.md_label));
md.md_provsize = g_get_mediasize(name);
if (md.md_provsize == 0) {
gctl_error(req, "Can't get mediasize of %s: %s.", name,
strerror(errno));
return;
}
/*
* Ok, store metadata.
*/
label_metadata_encode(&md, sector);
error = g_metadata_store(name, sector, sizeof(sector));
if (error != 0) {
fprintf(stderr, "Can't store metadata on %s: %s.\n", name,
strerror(error));
gctl_error(req, "Not done.");
}
if (verbose)
printf("Metadata value stored on %s.\n", name);
}
static void
label_clear(struct gctl_req *req)
{
const char *name;
int error, i, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs < 1) {
gctl_error(req, "Too few arguments.");
return;
}
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_clear(name, G_LABEL_MAGIC);
if (error != 0) {
fprintf(stderr, "Can't clear metadata on %s: %s.\n",
name, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
if (verbose)
printf("Metadata cleared on %s.\n", name);
}
}
static void
label_metadata_dump(const struct g_label_metadata *md)
{
printf(" Magic string: %s\n", md->md_magic);
printf("Metadata version: %u\n", (u_int)md->md_version);
printf(" Label: %s\n", md->md_label);
}
static void
label_dump(struct gctl_req *req)
{
struct g_label_metadata md, tmpmd;
const char *name;
int error, i, nargs;
nargs = gctl_get_int(req, "nargs");
if (nargs < 1) {
gctl_error(req, "Too few arguments.");
return;
}
for (i = 0; i < nargs; i++) {
name = gctl_get_ascii(req, "arg%d", i);
error = g_metadata_read(name, (u_char *)&tmpmd, sizeof(tmpmd),
G_LABEL_MAGIC);
if (error != 0) {
fprintf(stderr, "Can't read metadata from %s: %s.\n",
name, strerror(error));
gctl_error(req, "Not fully done.");
continue;
}
label_metadata_decode((u_char *)&tmpmd, &md);
printf("Metadata on %s:\n", name);
label_metadata_dump(&md);
printf("\n");
}
}
|