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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
|
/*
* Copyright (c) 2004-2009 Douglas Gilbert.
* 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* 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 <unistd.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <getopt.h>
#define __STDC_FORMAT_MACROS 1
#include <inttypes.h>
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "sg_lib.h"
#include "sg_cmds_basic.h"
#include "sg_cmds_extra.h"
/* A utility program for the Linux OS SCSI subsystem.
*
* This program issues the SCSI VERIFY command to the given SCSI block device.
*/
static char * version_str = "1.12 20090717";
#define ME "sg_verify: "
static struct option long_options[] = {
{"bpc", 1, 0, 'b'},
{"count", 1, 0, 'c'},
{"dpo", 0, 0, 'd'},
{"help", 0, 0, 'h'},
{"lba", 1, 0, 'l'},
{"verbose", 0, 0, 'v'},
{"version", 0, 0, 'V'},
{"vrprotect", 1, 0, 'P'},
{0, 0, 0, 0},
};
static void
usage()
{
fprintf(stderr, "Usage: "
"sg_verify [--bpc=BPC] [--count=COUNT] [--dpo] [--help] "
"[--lba=LBA]\n"
" [--verbose] [--version] [--vrprotect=VRP] "
"DEVICE\n"
" where:\n"
" --bpc=BPC|-b BPC max blocks per verify command "
"(def 128)\n"
" --count=COUNT|-c COUNT count of blocks to verify "
"(def 1)\n"
" --dpo|-d disable page out (cache retention "
"priority)\n"
" --help|-h print out usage message\n"
" --lba=LBA|-l LBA logical block address to start "
"verify (def 0)\n"
" --verbose|-v increase verbosity\n"
" --version|-V print version string and exit\n"
" --vrprotect=VRP|-P VRP set vrprotect field to VRP "
"(def 0)\n"
"Performs a SCSI VERIFY(10) command\n"
);
}
int
main(int argc, char * argv[])
{
int sg_fd, res, c, num;
int64_t ll;
int dpo = 0;
int bytechk = 0;
int vrprotect = 0;
int64_t count = 1;
int64_t orig_count;
int bpc = 128;
uint64_t lba = 0;
uint64_t orig_lba;
int verbose = 0;
const char * device_name = NULL;
int ret = 0;
unsigned int info = 0;
while (1) {
int option_index = 0;
c = getopt_long(argc, argv, "b:c:dhl:P:vV", long_options,
&option_index);
if (c == -1)
break;
switch (c) {
case 'b':
bpc = sg_get_num(optarg);
if (bpc < 1) {
fprintf(stderr, "bad argument to '--bpc'\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'c':
count = sg_get_llnum(optarg);
if (count < 0) {
fprintf(stderr, "bad argument to '--count'\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'd':
dpo = 1;
break;
case 'h':
case '?':
usage();
return 0;
case 'l':
ll = sg_get_llnum(optarg);
if (-1 == ll) {
fprintf(stderr, "bad argument to '--lba'\n");
return SG_LIB_SYNTAX_ERROR;
}
lba = (uint64_t)ll;
break;
case 'P':
vrprotect = sg_get_num(optarg);
if (-1 == vrprotect) {
fprintf(stderr, "bad argument to '--vrprotect'\n");
return SG_LIB_SYNTAX_ERROR;
}
if ((vrprotect < 0) || (vrprotect > 7)) {
fprintf(stderr, "'--vrprotect' requires a value from 0 to "
"7 (inclusive)\n");
return SG_LIB_SYNTAX_ERROR;
}
break;
case 'v':
++verbose;
break;
case 'V':
fprintf(stderr, ME "version: %s\n", version_str);
return 0;
default:
fprintf(stderr, "unrecognised option code %#x ??\n", c);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (optind < argc) {
if (NULL == device_name) {
device_name = argv[optind];
++optind;
}
if (optind < argc) {
for (; optind < argc; ++optind)
fprintf(stderr, "Unexpected extra argument: %s\n",
argv[optind]);
usage();
return SG_LIB_SYNTAX_ERROR;
}
}
if (bpc > 0xffff) {
fprintf(stderr, "'bpc' cannot exceed 65535\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
if (lba > 0xffffffffLLU) {
fprintf(stderr, "'lba' cannot exceed 32 bits\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
orig_count = count;
orig_lba = lba;
if (NULL == device_name) {
fprintf(stderr, "missing device name!\n");
usage();
return SG_LIB_SYNTAX_ERROR;
}
sg_fd = sg_cmds_open_device(device_name, 0 /* rw */, verbose);
if (sg_fd < 0) {
fprintf(stderr, ME "open error: %s: %s\n", device_name,
safe_strerror(-sg_fd));
return SG_LIB_FILE_ERROR;
}
for (; count > 0; count -= bpc, lba +=bpc) {
num = (count > bpc) ? bpc : count;
res = sg_ll_verify10(sg_fd, vrprotect, dpo, bytechk,
(unsigned int)lba, num, NULL, 0,
&info, 1, verbose);
if (0 != res) {
ret = res;
switch (res) {
case SG_LIB_CAT_NOT_READY:
fprintf(stderr, "Verify(10) failed, device not ready\n");
break;
case SG_LIB_CAT_UNIT_ATTENTION:
fprintf(stderr, "Verify(10), unit attention\n");
break;
case SG_LIB_CAT_ABORTED_COMMAND:
fprintf(stderr, "Verify(10), aborted command\n");
break;
case SG_LIB_CAT_INVALID_OP:
fprintf(stderr, "Verify(10) command not supported\n");
break;
case SG_LIB_CAT_ILLEGAL_REQ:
fprintf(stderr, "bad field in Verify(10) cdb, near "
"lba=%#" PRIx64 "\n", lba);
break;
case SG_LIB_CAT_MEDIUM_HARD:
fprintf(stderr, "medium or hardware error near "
"lba=%#" PRIx64 "\n", lba);
break;
case SG_LIB_CAT_MEDIUM_HARD_WITH_INFO:
fprintf(stderr, "medium or hardware error, reported "
"lba=0x%u\n", info);
break;
default:
fprintf(stderr, "Verify(10) failed near lba=%" PRIu64
" [%#" PRIx64 "]\n", lba, lba);
break;
}
break;
}
}
if (verbose && (0 == ret) && (orig_count > 1))
fprintf(stderr, "Verified %" PRId64 " [%#" PRIx64 "] blocks from "
"lba %" PRIu64 " [%#" PRIx64 "]\n without error\n",
orig_count, (uint64_t)orig_count, orig_lba, orig_lba);
res = sg_cmds_close_device(sg_fd);
if (res < 0) {
fprintf(stderr, "close error: %s\n", safe_strerror(-res));
if (0 == ret)
return SG_LIB_FILE_ERROR;
}
return (ret >= 0) ? ret : SG_LIB_CAT_OTHER;
}
|
