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Commit | Line | Data |
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ea2384d3 | 1 | /* |
fb43f4dd | 2 | * QEMU disk image utility |
5fafdf24 | 3 | * |
68d0f70e | 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
5fafdf24 | 5 | * |
ea2384d3 FB |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
c054b3fd BC |
24 | #include "qapi-visit.h" |
25 | #include "qapi/qmp-output-visitor.h" | |
7b1b5d19 | 26 | #include "qapi/qmp/qjson.h" |
faf07963 | 27 | #include "qemu-common.h" |
1de7afc9 PB |
28 | #include "qemu/option.h" |
29 | #include "qemu/error-report.h" | |
30 | #include "qemu/osdep.h" | |
9c17d615 | 31 | #include "sysemu/sysemu.h" |
737e150e | 32 | #include "block/block_int.h" |
f364ec65 | 33 | #include "block/qapi.h" |
c054b3fd | 34 | #include <getopt.h> |
1a443c1b | 35 | #include <glib.h> |
e8445331 | 36 | |
5f6979cb JC |
37 | #define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION \ |
38 | ", Copyright (c) 2004-2008 Fabrice Bellard\n" | |
39 | ||
c227f099 | 40 | typedef struct img_cmd_t { |
153859be SB |
41 | const char *name; |
42 | int (*handler)(int argc, char **argv); | |
c227f099 | 43 | } img_cmd_t; |
153859be | 44 | |
8599ea4c FS |
45 | enum { |
46 | OPTION_OUTPUT = 256, | |
47 | OPTION_BACKING_CHAIN = 257, | |
48 | }; | |
49 | ||
50 | typedef enum OutputFormat { | |
51 | OFORMAT_JSON, | |
52 | OFORMAT_HUMAN, | |
53 | } OutputFormat; | |
54 | ||
137519ce | 55 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */ |
adfe078e | 56 | #define BDRV_O_FLAGS BDRV_O_CACHE_WB |
661a0f71 | 57 | #define BDRV_DEFAULT_CACHE "writeback" |
137519ce | 58 | |
1a443c1b | 59 | static gint compare_data(gconstpointer a, gconstpointer b, gpointer user) |
ea2384d3 | 60 | { |
1a443c1b MD |
61 | return g_strcmp0(a, b); |
62 | } | |
63 | ||
64 | static void print_format(gpointer data, gpointer user) | |
65 | { | |
66 | printf(" %s", (char *)data); | |
67 | } | |
68 | ||
69 | static void add_format_to_seq(void *opaque, const char *fmt_name) | |
70 | { | |
71 | GSequence *seq = opaque; | |
72 | ||
395071a7 MD |
73 | g_sequence_insert_sorted(seq, (gpointer)fmt_name, |
74 | compare_data, NULL); | |
ea2384d3 FB |
75 | } |
76 | ||
ac1307ab FZ |
77 | static void QEMU_NORETURN GCC_FMT_ATTR(1, 2) error_exit(const char *fmt, ...) |
78 | { | |
79 | va_list ap; | |
80 | ||
81 | error_printf("qemu-img: "); | |
82 | ||
83 | va_start(ap, fmt); | |
84 | error_vprintf(fmt, ap); | |
85 | va_end(ap); | |
86 | ||
87 | error_printf("\nTry 'qemu-img --help' for more information\n"); | |
88 | exit(EXIT_FAILURE); | |
89 | } | |
90 | ||
d2c639d6 | 91 | /* Please keep in synch with qemu-img.texi */ |
ac1307ab | 92 | static void QEMU_NORETURN help(void) |
ea2384d3 | 93 | { |
e00291c0 | 94 | const char *help_msg = |
5f6979cb | 95 | QEMU_IMG_VERSION |
3f020d70 | 96 | "usage: qemu-img command [command options]\n" |
97 | "QEMU disk image utility\n" | |
98 | "\n" | |
99 | "Command syntax:\n" | |
153859be SB |
100 | #define DEF(option, callback, arg_string) \ |
101 | " " arg_string "\n" | |
102 | #include "qemu-img-cmds.h" | |
103 | #undef DEF | |
104 | #undef GEN_DOCS | |
3f020d70 | 105 | "\n" |
106 | "Command parameters:\n" | |
107 | " 'filename' is a disk image filename\n" | |
108 | " 'fmt' is the disk image format. It is guessed automatically in most cases\n" | |
661a0f71 | 109 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
80ccf93b LY |
110 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
111 | " 'directsync' and 'unsafe' (default for convert)\n" | |
3f020d70 | 112 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
5e00984a KW |
113 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n" |
114 | " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n" | |
115 | " supported. 'b' is ignored.\n" | |
3f020d70 | 116 | " 'output_filename' is the destination disk image filename\n" |
117 | " 'output_fmt' is the destination format\n" | |
118 | " 'options' is a comma separated list of format specific options in a\n" | |
119 | " name=value format. Use -o ? for an overview of the options supported by the\n" | |
120 | " used format\n" | |
ef80654d WX |
121 | " 'snapshot_param' is param used for internal snapshot, format\n" |
122 | " is 'snapshot.id=[ID],snapshot.name=[NAME]', or\n" | |
123 | " '[ID_OR_NAME]'\n" | |
124 | " 'snapshot_id_or_name' is deprecated, use 'snapshot_param'\n" | |
125 | " instead\n" | |
3f020d70 | 126 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
127 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" | |
128 | " match exactly. The image doesn't need a working backing file before\n" | |
129 | " rebasing in this case (useful for renaming the backing file)\n" | |
130 | " '-h' with or without a command shows this help and lists the supported formats\n" | |
6b837bc4 | 131 | " '-p' show progress of command (only certain commands)\n" |
f382d43a | 132 | " '-q' use Quiet mode - do not print any output (except errors)\n" |
11b6699a PL |
133 | " '-S' indicates the consecutive number of bytes (defaults to 4k) that must\n" |
134 | " contain only zeros for qemu-img to create a sparse image during\n" | |
135 | " conversion. If the number of bytes is 0, the source will not be scanned for\n" | |
136 | " unallocated or zero sectors, and the destination image will always be\n" | |
137 | " fully allocated\n" | |
c054b3fd | 138 | " '--output' takes the format in which the output must be done (human or json)\n" |
b2e10493 AD |
139 | " '-n' skips the target volume creation (useful if the volume is created\n" |
140 | " prior to running qemu-img)\n" | |
3f020d70 | 141 | "\n" |
4534ff54 KW |
142 | "Parameters to check subcommand:\n" |
143 | " '-r' tries to repair any inconsistencies that are found during the check.\n" | |
144 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" | |
145 | " kinds of errors, with a higher risk of choosing the wrong fix or\n" | |
0546b8c2 | 146 | " hiding corruption that has already occurred.\n" |
4534ff54 | 147 | "\n" |
3f020d70 | 148 | "Parameters to snapshot subcommand:\n" |
149 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" | |
150 | " '-a' applies a snapshot (revert disk to saved state)\n" | |
151 | " '-c' creates a snapshot\n" | |
152 | " '-d' deletes a snapshot\n" | |
d14ed18c MR |
153 | " '-l' lists all snapshots in the given image\n" |
154 | "\n" | |
155 | "Parameters to compare subcommand:\n" | |
156 | " '-f' first image format\n" | |
157 | " '-F' second image format\n" | |
158 | " '-s' run in Strict mode - fail on different image size or sector allocation\n"; | |
1a443c1b | 159 | GSequence *seq; |
e00291c0 PB |
160 | |
161 | printf("%s\nSupported formats:", help_msg); | |
1a443c1b MD |
162 | seq = g_sequence_new(NULL); |
163 | bdrv_iterate_format(add_format_to_seq, seq); | |
164 | g_sequence_foreach(seq, print_format, NULL); | |
ea2384d3 | 165 | printf("\n"); |
1a443c1b MD |
166 | g_sequence_free(seq); |
167 | ||
ac1307ab | 168 | exit(EXIT_SUCCESS); |
ea2384d3 FB |
169 | } |
170 | ||
7c30f657 | 171 | static int GCC_FMT_ATTR(2, 3) qprintf(bool quiet, const char *fmt, ...) |
f382d43a MR |
172 | { |
173 | int ret = 0; | |
174 | if (!quiet) { | |
175 | va_list args; | |
176 | va_start(args, fmt); | |
177 | ret = vprintf(fmt, args); | |
178 | va_end(args); | |
179 | } | |
180 | return ret; | |
181 | } | |
182 | ||
ea2384d3 FB |
183 | #if defined(WIN32) |
184 | /* XXX: put correct support for win32 */ | |
185 | static int read_password(char *buf, int buf_size) | |
186 | { | |
187 | int c, i; | |
188 | printf("Password: "); | |
189 | fflush(stdout); | |
190 | i = 0; | |
191 | for(;;) { | |
192 | c = getchar(); | |
193 | if (c == '\n') | |
194 | break; | |
195 | if (i < (buf_size - 1)) | |
196 | buf[i++] = c; | |
197 | } | |
198 | buf[i] = '\0'; | |
199 | return 0; | |
200 | } | |
201 | ||
202 | #else | |
203 | ||
204 | #include <termios.h> | |
205 | ||
206 | static struct termios oldtty; | |
207 | ||
208 | static void term_exit(void) | |
209 | { | |
210 | tcsetattr (0, TCSANOW, &oldtty); | |
211 | } | |
212 | ||
213 | static void term_init(void) | |
214 | { | |
215 | struct termios tty; | |
216 | ||
217 | tcgetattr (0, &tty); | |
218 | oldtty = tty; | |
219 | ||
220 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP | |
221 | |INLCR|IGNCR|ICRNL|IXON); | |
222 | tty.c_oflag |= OPOST; | |
223 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); | |
224 | tty.c_cflag &= ~(CSIZE|PARENB); | |
225 | tty.c_cflag |= CS8; | |
226 | tty.c_cc[VMIN] = 1; | |
227 | tty.c_cc[VTIME] = 0; | |
3b46e624 | 228 | |
ea2384d3 FB |
229 | tcsetattr (0, TCSANOW, &tty); |
230 | ||
231 | atexit(term_exit); | |
232 | } | |
233 | ||
3f379ab1 | 234 | static int read_password(char *buf, int buf_size) |
ea2384d3 FB |
235 | { |
236 | uint8_t ch; | |
237 | int i, ret; | |
238 | ||
239 | printf("password: "); | |
240 | fflush(stdout); | |
241 | term_init(); | |
242 | i = 0; | |
243 | for(;;) { | |
244 | ret = read(0, &ch, 1); | |
245 | if (ret == -1) { | |
246 | if (errno == EAGAIN || errno == EINTR) { | |
247 | continue; | |
248 | } else { | |
249 | ret = -1; | |
250 | break; | |
251 | } | |
252 | } else if (ret == 0) { | |
253 | ret = -1; | |
254 | break; | |
255 | } else { | |
256 | if (ch == '\r') { | |
257 | ret = 0; | |
258 | break; | |
259 | } | |
260 | if (i < (buf_size - 1)) | |
261 | buf[i++] = ch; | |
262 | } | |
263 | } | |
264 | term_exit(); | |
265 | buf[i] = '\0'; | |
266 | printf("\n"); | |
267 | return ret; | |
268 | } | |
269 | #endif | |
270 | ||
4ac8aacd JS |
271 | static int print_block_option_help(const char *filename, const char *fmt) |
272 | { | |
273 | BlockDriver *drv, *proto_drv; | |
274 | QEMUOptionParameter *create_options = NULL; | |
275 | ||
276 | /* Find driver and parse its options */ | |
277 | drv = bdrv_find_format(fmt); | |
278 | if (!drv) { | |
15654a6d | 279 | error_report("Unknown file format '%s'", fmt); |
4ac8aacd JS |
280 | return 1; |
281 | } | |
282 | ||
4ac8aacd JS |
283 | create_options = append_option_parameters(create_options, |
284 | drv->create_options); | |
a283cb6e KW |
285 | |
286 | if (filename) { | |
287 | proto_drv = bdrv_find_protocol(filename, true); | |
288 | if (!proto_drv) { | |
289 | error_report("Unknown protocol '%s'", filename); | |
ebee92b4 | 290 | free_option_parameters(create_options); |
a283cb6e KW |
291 | return 1; |
292 | } | |
293 | create_options = append_option_parameters(create_options, | |
294 | proto_drv->create_options); | |
295 | } | |
296 | ||
4ac8aacd JS |
297 | print_option_help(create_options); |
298 | free_option_parameters(create_options); | |
299 | return 0; | |
300 | } | |
301 | ||
9ffe3332 KW |
302 | static BlockDriverState *bdrv_new_open(const char *id, |
303 | const char *filename, | |
9bc378c1 | 304 | const char *fmt, |
f0536bb8 | 305 | int flags, |
f382d43a MR |
306 | bool require_io, |
307 | bool quiet) | |
75c23805 FB |
308 | { |
309 | BlockDriverState *bs; | |
310 | BlockDriver *drv; | |
311 | char password[256]; | |
34b5d2c6 | 312 | Error *local_err = NULL; |
b9eaf9ec | 313 | int ret; |
75c23805 | 314 | |
9ffe3332 | 315 | bs = bdrv_new(id, &error_abort); |
ad717139 | 316 | |
75c23805 FB |
317 | if (fmt) { |
318 | drv = bdrv_find_format(fmt); | |
c2abccec | 319 | if (!drv) { |
15654a6d | 320 | error_report("Unknown file format '%s'", fmt); |
c2abccec MK |
321 | goto fail; |
322 | } | |
75c23805 FB |
323 | } else { |
324 | drv = NULL; | |
325 | } | |
b9eaf9ec | 326 | |
ddf5636d | 327 | ret = bdrv_open(&bs, filename, NULL, NULL, flags, drv, &local_err); |
b9eaf9ec | 328 | if (ret < 0) { |
34b5d2c6 HR |
329 | error_report("Could not open '%s': %s", filename, |
330 | error_get_pretty(local_err)); | |
331 | error_free(local_err); | |
c2abccec | 332 | goto fail; |
75c23805 | 333 | } |
b9eaf9ec | 334 | |
f0536bb8 | 335 | if (bdrv_is_encrypted(bs) && require_io) { |
f382d43a | 336 | qprintf(quiet, "Disk image '%s' is encrypted.\n", filename); |
c2abccec | 337 | if (read_password(password, sizeof(password)) < 0) { |
15654a6d | 338 | error_report("No password given"); |
c2abccec MK |
339 | goto fail; |
340 | } | |
341 | if (bdrv_set_key(bs, password) < 0) { | |
15654a6d | 342 | error_report("invalid password"); |
c2abccec MK |
343 | goto fail; |
344 | } | |
75c23805 FB |
345 | } |
346 | return bs; | |
c2abccec | 347 | fail: |
f67503e5 | 348 | bdrv_unref(bs); |
c2abccec | 349 | return NULL; |
75c23805 FB |
350 | } |
351 | ||
c2abccec | 352 | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
eec77d9e JS |
353 | const char *base_filename, |
354 | const char *base_fmt) | |
efa84d43 | 355 | { |
efa84d43 KW |
356 | if (base_filename) { |
357 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) { | |
15654a6d JS |
358 | error_report("Backing file not supported for file format '%s'", |
359 | fmt); | |
c2abccec | 360 | return -1; |
efa84d43 KW |
361 | } |
362 | } | |
363 | if (base_fmt) { | |
364 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) { | |
15654a6d JS |
365 | error_report("Backing file format not supported for file " |
366 | "format '%s'", fmt); | |
c2abccec | 367 | return -1; |
efa84d43 KW |
368 | } |
369 | } | |
c2abccec | 370 | return 0; |
efa84d43 KW |
371 | } |
372 | ||
ea2384d3 FB |
373 | static int img_create(int argc, char **argv) |
374 | { | |
a9300911 | 375 | int c; |
1da7cfbd | 376 | uint64_t img_size = -1; |
ea2384d3 | 377 | const char *fmt = "raw"; |
9230eaf6 | 378 | const char *base_fmt = NULL; |
ea2384d3 FB |
379 | const char *filename; |
380 | const char *base_filename = NULL; | |
9ea2ea71 | 381 | char *options = NULL; |
9b37525a | 382 | Error *local_err = NULL; |
f382d43a | 383 | bool quiet = false; |
3b46e624 | 384 | |
ea2384d3 | 385 | for(;;) { |
f382d43a | 386 | c = getopt(argc, argv, "F:b:f:he6o:q"); |
b8fb60da | 387 | if (c == -1) { |
ea2384d3 | 388 | break; |
b8fb60da | 389 | } |
ea2384d3 | 390 | switch(c) { |
ef87394c | 391 | case '?': |
ea2384d3 FB |
392 | case 'h': |
393 | help(); | |
394 | break; | |
9230eaf6 AL |
395 | case 'F': |
396 | base_fmt = optarg; | |
397 | break; | |
ea2384d3 FB |
398 | case 'b': |
399 | base_filename = optarg; | |
400 | break; | |
401 | case 'f': | |
402 | fmt = optarg; | |
403 | break; | |
404 | case 'e': | |
9d42e15d | 405 | error_report("option -e is deprecated, please use \'-o " |
eec77d9e | 406 | "encryption\' instead!"); |
77386bf6 | 407 | goto fail; |
d8871c5a | 408 | case '6': |
9d42e15d | 409 | error_report("option -6 is deprecated, please use \'-o " |
eec77d9e | 410 | "compat6\' instead!"); |
77386bf6 | 411 | goto fail; |
9ea2ea71 | 412 | case 'o': |
77386bf6 KW |
413 | if (!is_valid_option_list(optarg)) { |
414 | error_report("Invalid option list: %s", optarg); | |
415 | goto fail; | |
416 | } | |
417 | if (!options) { | |
418 | options = g_strdup(optarg); | |
419 | } else { | |
420 | char *old_options = options; | |
421 | options = g_strdup_printf("%s,%s", options, optarg); | |
422 | g_free(old_options); | |
423 | } | |
9ea2ea71 | 424 | break; |
f382d43a MR |
425 | case 'q': |
426 | quiet = true; | |
427 | break; | |
ea2384d3 FB |
428 | } |
429 | } | |
9230eaf6 | 430 | |
b50cbabc | 431 | /* Get the filename */ |
a283cb6e KW |
432 | filename = (optind < argc) ? argv[optind] : NULL; |
433 | if (options && has_help_option(options)) { | |
434 | g_free(options); | |
435 | return print_block_option_help(filename, fmt); | |
436 | } | |
437 | ||
b8fb60da | 438 | if (optind >= argc) { |
ac1307ab | 439 | error_exit("Expecting image file name"); |
b8fb60da | 440 | } |
a283cb6e | 441 | optind++; |
b50cbabc | 442 | |
1da7cfbd JS |
443 | /* Get image size, if specified */ |
444 | if (optind < argc) { | |
70b4f4bb | 445 | int64_t sval; |
e36b3695 MA |
446 | char *end; |
447 | sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B); | |
448 | if (sval < 0 || *end) { | |
79443397 LG |
449 | if (sval == -ERANGE) { |
450 | error_report("Image size must be less than 8 EiB!"); | |
451 | } else { | |
452 | error_report("Invalid image size specified! You may use k, M, " | |
5e00984a KW |
453 | "G, T, P or E suffixes for "); |
454 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
455 | "petabytes and exabytes."); | |
79443397 | 456 | } |
77386bf6 | 457 | goto fail; |
1da7cfbd JS |
458 | } |
459 | img_size = (uint64_t)sval; | |
460 | } | |
fc11eb26 | 461 | if (optind != argc) { |
ac1307ab | 462 | error_exit("Unexpected argument: %s", argv[optind]); |
fc11eb26 | 463 | } |
1da7cfbd | 464 | |
9b37525a | 465 | bdrv_img_create(filename, fmt, base_filename, base_fmt, |
f382d43a | 466 | options, img_size, BDRV_O_FLAGS, &local_err, quiet); |
84d18f06 | 467 | if (local_err) { |
b70d8c23 | 468 | error_report("%s: %s", filename, error_get_pretty(local_err)); |
9b37525a | 469 | error_free(local_err); |
77386bf6 | 470 | goto fail; |
c2abccec | 471 | } |
a9300911 | 472 | |
77386bf6 | 473 | g_free(options); |
ea2384d3 | 474 | return 0; |
77386bf6 KW |
475 | |
476 | fail: | |
477 | g_free(options); | |
478 | return 1; | |
ea2384d3 FB |
479 | } |
480 | ||
f382d43a | 481 | static void dump_json_image_check(ImageCheck *check, bool quiet) |
8599ea4c | 482 | { |
4399c438 | 483 | Error *local_err = NULL; |
8599ea4c FS |
484 | QString *str; |
485 | QmpOutputVisitor *ov = qmp_output_visitor_new(); | |
486 | QObject *obj; | |
487 | visit_type_ImageCheck(qmp_output_get_visitor(ov), | |
4399c438 | 488 | &check, NULL, &local_err); |
8599ea4c FS |
489 | obj = qmp_output_get_qobject(ov); |
490 | str = qobject_to_json_pretty(obj); | |
491 | assert(str != NULL); | |
f382d43a | 492 | qprintf(quiet, "%s\n", qstring_get_str(str)); |
8599ea4c FS |
493 | qobject_decref(obj); |
494 | qmp_output_visitor_cleanup(ov); | |
495 | QDECREF(str); | |
496 | } | |
497 | ||
f382d43a | 498 | static void dump_human_image_check(ImageCheck *check, bool quiet) |
8599ea4c FS |
499 | { |
500 | if (!(check->corruptions || check->leaks || check->check_errors)) { | |
f382d43a | 501 | qprintf(quiet, "No errors were found on the image.\n"); |
8599ea4c FS |
502 | } else { |
503 | if (check->corruptions) { | |
f382d43a MR |
504 | qprintf(quiet, "\n%" PRId64 " errors were found on the image.\n" |
505 | "Data may be corrupted, or further writes to the image " | |
506 | "may corrupt it.\n", | |
507 | check->corruptions); | |
8599ea4c FS |
508 | } |
509 | ||
510 | if (check->leaks) { | |
f382d43a MR |
511 | qprintf(quiet, |
512 | "\n%" PRId64 " leaked clusters were found on the image.\n" | |
513 | "This means waste of disk space, but no harm to data.\n", | |
514 | check->leaks); | |
8599ea4c FS |
515 | } |
516 | ||
517 | if (check->check_errors) { | |
f382d43a MR |
518 | qprintf(quiet, |
519 | "\n%" PRId64 | |
520 | " internal errors have occurred during the check.\n", | |
521 | check->check_errors); | |
8599ea4c FS |
522 | } |
523 | } | |
524 | ||
525 | if (check->total_clusters != 0 && check->allocated_clusters != 0) { | |
f382d43a MR |
526 | qprintf(quiet, "%" PRId64 "/%" PRId64 " = %0.2f%% allocated, " |
527 | "%0.2f%% fragmented, %0.2f%% compressed clusters\n", | |
528 | check->allocated_clusters, check->total_clusters, | |
529 | check->allocated_clusters * 100.0 / check->total_clusters, | |
530 | check->fragmented_clusters * 100.0 / check->allocated_clusters, | |
531 | check->compressed_clusters * 100.0 / | |
532 | check->allocated_clusters); | |
8599ea4c FS |
533 | } |
534 | ||
535 | if (check->image_end_offset) { | |
f382d43a MR |
536 | qprintf(quiet, |
537 | "Image end offset: %" PRId64 "\n", check->image_end_offset); | |
8599ea4c FS |
538 | } |
539 | } | |
540 | ||
541 | static int collect_image_check(BlockDriverState *bs, | |
542 | ImageCheck *check, | |
543 | const char *filename, | |
544 | const char *fmt, | |
545 | int fix) | |
546 | { | |
547 | int ret; | |
548 | BdrvCheckResult result; | |
549 | ||
550 | ret = bdrv_check(bs, &result, fix); | |
551 | if (ret < 0) { | |
552 | return ret; | |
553 | } | |
554 | ||
555 | check->filename = g_strdup(filename); | |
556 | check->format = g_strdup(bdrv_get_format_name(bs)); | |
557 | check->check_errors = result.check_errors; | |
558 | check->corruptions = result.corruptions; | |
559 | check->has_corruptions = result.corruptions != 0; | |
560 | check->leaks = result.leaks; | |
561 | check->has_leaks = result.leaks != 0; | |
562 | check->corruptions_fixed = result.corruptions_fixed; | |
563 | check->has_corruptions_fixed = result.corruptions != 0; | |
564 | check->leaks_fixed = result.leaks_fixed; | |
565 | check->has_leaks_fixed = result.leaks != 0; | |
566 | check->image_end_offset = result.image_end_offset; | |
567 | check->has_image_end_offset = result.image_end_offset != 0; | |
568 | check->total_clusters = result.bfi.total_clusters; | |
569 | check->has_total_clusters = result.bfi.total_clusters != 0; | |
570 | check->allocated_clusters = result.bfi.allocated_clusters; | |
571 | check->has_allocated_clusters = result.bfi.allocated_clusters != 0; | |
572 | check->fragmented_clusters = result.bfi.fragmented_clusters; | |
573 | check->has_fragmented_clusters = result.bfi.fragmented_clusters != 0; | |
e6439d78 SH |
574 | check->compressed_clusters = result.bfi.compressed_clusters; |
575 | check->has_compressed_clusters = result.bfi.compressed_clusters != 0; | |
8599ea4c FS |
576 | |
577 | return 0; | |
578 | } | |
579 | ||
e076f338 KW |
580 | /* |
581 | * Checks an image for consistency. Exit codes: | |
582 | * | |
583 | * 0 - Check completed, image is good | |
584 | * 1 - Check not completed because of internal errors | |
585 | * 2 - Check completed, image is corrupted | |
586 | * 3 - Check completed, image has leaked clusters, but is good otherwise | |
587 | */ | |
1585969c AL |
588 | static int img_check(int argc, char **argv) |
589 | { | |
590 | int c, ret; | |
8599ea4c FS |
591 | OutputFormat output_format = OFORMAT_HUMAN; |
592 | const char *filename, *fmt, *output; | |
1585969c | 593 | BlockDriverState *bs; |
4534ff54 | 594 | int fix = 0; |
058f8f16 | 595 | int flags = BDRV_O_FLAGS | BDRV_O_CHECK; |
8599ea4c | 596 | ImageCheck *check; |
f382d43a | 597 | bool quiet = false; |
1585969c AL |
598 | |
599 | fmt = NULL; | |
8599ea4c | 600 | output = NULL; |
1585969c | 601 | for(;;) { |
8599ea4c FS |
602 | int option_index = 0; |
603 | static const struct option long_options[] = { | |
604 | {"help", no_argument, 0, 'h'}, | |
605 | {"format", required_argument, 0, 'f'}, | |
4fd6a984 | 606 | {"repair", required_argument, 0, 'r'}, |
8599ea4c FS |
607 | {"output", required_argument, 0, OPTION_OUTPUT}, |
608 | {0, 0, 0, 0} | |
609 | }; | |
f382d43a | 610 | c = getopt_long(argc, argv, "f:hr:q", |
8599ea4c | 611 | long_options, &option_index); |
b8fb60da | 612 | if (c == -1) { |
1585969c | 613 | break; |
b8fb60da | 614 | } |
1585969c | 615 | switch(c) { |
ef87394c | 616 | case '?': |
1585969c AL |
617 | case 'h': |
618 | help(); | |
619 | break; | |
620 | case 'f': | |
621 | fmt = optarg; | |
622 | break; | |
4534ff54 KW |
623 | case 'r': |
624 | flags |= BDRV_O_RDWR; | |
625 | ||
626 | if (!strcmp(optarg, "leaks")) { | |
627 | fix = BDRV_FIX_LEAKS; | |
628 | } else if (!strcmp(optarg, "all")) { | |
629 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; | |
630 | } else { | |
ac1307ab FZ |
631 | error_exit("Unknown option value for -r " |
632 | "(expecting 'leaks' or 'all'): %s", optarg); | |
4534ff54 KW |
633 | } |
634 | break; | |
8599ea4c FS |
635 | case OPTION_OUTPUT: |
636 | output = optarg; | |
637 | break; | |
f382d43a MR |
638 | case 'q': |
639 | quiet = true; | |
640 | break; | |
1585969c AL |
641 | } |
642 | } | |
fc11eb26 | 643 | if (optind != argc - 1) { |
ac1307ab | 644 | error_exit("Expecting one image file name"); |
b8fb60da | 645 | } |
1585969c AL |
646 | filename = argv[optind++]; |
647 | ||
8599ea4c FS |
648 | if (output && !strcmp(output, "json")) { |
649 | output_format = OFORMAT_JSON; | |
650 | } else if (output && !strcmp(output, "human")) { | |
651 | output_format = OFORMAT_HUMAN; | |
652 | } else if (output) { | |
653 | error_report("--output must be used with human or json as argument."); | |
654 | return 1; | |
655 | } | |
656 | ||
9ffe3332 | 657 | bs = bdrv_new_open("image", filename, fmt, flags, true, quiet); |
c2abccec MK |
658 | if (!bs) { |
659 | return 1; | |
660 | } | |
8599ea4c FS |
661 | |
662 | check = g_new0(ImageCheck, 1); | |
663 | ret = collect_image_check(bs, check, filename, fmt, fix); | |
e076f338 KW |
664 | |
665 | if (ret == -ENOTSUP) { | |
8599ea4c FS |
666 | if (output_format == OFORMAT_HUMAN) { |
667 | error_report("This image format does not support checks"); | |
668 | } | |
fefddf95 | 669 | ret = 63; |
8599ea4c | 670 | goto fail; |
e076f338 KW |
671 | } |
672 | ||
8599ea4c FS |
673 | if (check->corruptions_fixed || check->leaks_fixed) { |
674 | int corruptions_fixed, leaks_fixed; | |
ccf34716 | 675 | |
8599ea4c FS |
676 | leaks_fixed = check->leaks_fixed; |
677 | corruptions_fixed = check->corruptions_fixed; | |
e076f338 | 678 | |
8599ea4c | 679 | if (output_format == OFORMAT_HUMAN) { |
f382d43a MR |
680 | qprintf(quiet, |
681 | "The following inconsistencies were found and repaired:\n\n" | |
682 | " %" PRId64 " leaked clusters\n" | |
683 | " %" PRId64 " corruptions\n\n" | |
684 | "Double checking the fixed image now...\n", | |
685 | check->leaks_fixed, | |
686 | check->corruptions_fixed); | |
e076f338 KW |
687 | } |
688 | ||
8599ea4c | 689 | ret = collect_image_check(bs, check, filename, fmt, 0); |
1585969c | 690 | |
8599ea4c FS |
691 | check->leaks_fixed = leaks_fixed; |
692 | check->corruptions_fixed = corruptions_fixed; | |
f8111c24 DXW |
693 | } |
694 | ||
8599ea4c FS |
695 | switch (output_format) { |
696 | case OFORMAT_HUMAN: | |
f382d43a | 697 | dump_human_image_check(check, quiet); |
8599ea4c FS |
698 | break; |
699 | case OFORMAT_JSON: | |
f382d43a | 700 | dump_json_image_check(check, quiet); |
8599ea4c | 701 | break; |
c6bb9ad1 FS |
702 | } |
703 | ||
8599ea4c FS |
704 | if (ret || check->check_errors) { |
705 | ret = 1; | |
706 | goto fail; | |
c2abccec | 707 | } |
e076f338 | 708 | |
8599ea4c FS |
709 | if (check->corruptions) { |
710 | ret = 2; | |
711 | } else if (check->leaks) { | |
712 | ret = 3; | |
e076f338 | 713 | } else { |
8599ea4c | 714 | ret = 0; |
e076f338 | 715 | } |
8599ea4c FS |
716 | |
717 | fail: | |
718 | qapi_free_ImageCheck(check); | |
4f6fd349 | 719 | bdrv_unref(bs); |
8599ea4c FS |
720 | |
721 | return ret; | |
1585969c AL |
722 | } |
723 | ||
ea2384d3 FB |
724 | static int img_commit(int argc, char **argv) |
725 | { | |
661a0f71 FS |
726 | int c, ret, flags; |
727 | const char *filename, *fmt, *cache; | |
ea2384d3 | 728 | BlockDriverState *bs; |
f382d43a | 729 | bool quiet = false; |
ea2384d3 FB |
730 | |
731 | fmt = NULL; | |
661a0f71 | 732 | cache = BDRV_DEFAULT_CACHE; |
ea2384d3 | 733 | for(;;) { |
f382d43a | 734 | c = getopt(argc, argv, "f:ht:q"); |
b8fb60da | 735 | if (c == -1) { |
ea2384d3 | 736 | break; |
b8fb60da | 737 | } |
ea2384d3 | 738 | switch(c) { |
ef87394c | 739 | case '?': |
ea2384d3 FB |
740 | case 'h': |
741 | help(); | |
742 | break; | |
743 | case 'f': | |
744 | fmt = optarg; | |
745 | break; | |
661a0f71 FS |
746 | case 't': |
747 | cache = optarg; | |
748 | break; | |
f382d43a MR |
749 | case 'q': |
750 | quiet = true; | |
751 | break; | |
ea2384d3 FB |
752 | } |
753 | } | |
fc11eb26 | 754 | if (optind != argc - 1) { |
ac1307ab | 755 | error_exit("Expecting one image file name"); |
b8fb60da | 756 | } |
ea2384d3 FB |
757 | filename = argv[optind++]; |
758 | ||
661a0f71 | 759 | flags = BDRV_O_RDWR; |
c3993cdc | 760 | ret = bdrv_parse_cache_flags(cache, &flags); |
661a0f71 FS |
761 | if (ret < 0) { |
762 | error_report("Invalid cache option: %s", cache); | |
763 | return -1; | |
764 | } | |
765 | ||
9ffe3332 | 766 | bs = bdrv_new_open("image", filename, fmt, flags, true, quiet); |
c2abccec MK |
767 | if (!bs) { |
768 | return 1; | |
769 | } | |
ea2384d3 FB |
770 | ret = bdrv_commit(bs); |
771 | switch(ret) { | |
772 | case 0: | |
f382d43a | 773 | qprintf(quiet, "Image committed.\n"); |
ea2384d3 FB |
774 | break; |
775 | case -ENOENT: | |
15654a6d | 776 | error_report("No disk inserted"); |
ea2384d3 FB |
777 | break; |
778 | case -EACCES: | |
15654a6d | 779 | error_report("Image is read-only"); |
ea2384d3 FB |
780 | break; |
781 | case -ENOTSUP: | |
15654a6d | 782 | error_report("Image is already committed"); |
ea2384d3 FB |
783 | break; |
784 | default: | |
15654a6d | 785 | error_report("Error while committing image"); |
ea2384d3 FB |
786 | break; |
787 | } | |
788 | ||
4f6fd349 | 789 | bdrv_unref(bs); |
c2abccec MK |
790 | if (ret) { |
791 | return 1; | |
792 | } | |
ea2384d3 FB |
793 | return 0; |
794 | } | |
795 | ||
f58c7b35 TS |
796 | /* |
797 | * Returns true iff the first sector pointed to by 'buf' contains at least | |
798 | * a non-NUL byte. | |
799 | * | |
800 | * 'pnum' is set to the number of sectors (including and immediately following | |
801 | * the first one) that are known to be in the same allocated/unallocated state. | |
802 | */ | |
ea2384d3 FB |
803 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
804 | { | |
1a6d39fd SH |
805 | bool is_zero; |
806 | int i; | |
ea2384d3 FB |
807 | |
808 | if (n <= 0) { | |
809 | *pnum = 0; | |
810 | return 0; | |
811 | } | |
1a6d39fd | 812 | is_zero = buffer_is_zero(buf, 512); |
ea2384d3 FB |
813 | for(i = 1; i < n; i++) { |
814 | buf += 512; | |
1a6d39fd | 815 | if (is_zero != buffer_is_zero(buf, 512)) { |
ea2384d3 | 816 | break; |
1a6d39fd | 817 | } |
ea2384d3 FB |
818 | } |
819 | *pnum = i; | |
1a6d39fd | 820 | return !is_zero; |
ea2384d3 FB |
821 | } |
822 | ||
a22f123c KW |
823 | /* |
824 | * Like is_allocated_sectors, but if the buffer starts with a used sector, | |
825 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids | |
826 | * breaking up write requests for only small sparse areas. | |
827 | */ | |
828 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, | |
829 | int min) | |
830 | { | |
831 | int ret; | |
832 | int num_checked, num_used; | |
833 | ||
834 | if (n < min) { | |
835 | min = n; | |
836 | } | |
837 | ||
838 | ret = is_allocated_sectors(buf, n, pnum); | |
839 | if (!ret) { | |
840 | return ret; | |
841 | } | |
842 | ||
843 | num_used = *pnum; | |
844 | buf += BDRV_SECTOR_SIZE * *pnum; | |
845 | n -= *pnum; | |
846 | num_checked = num_used; | |
847 | ||
848 | while (n > 0) { | |
849 | ret = is_allocated_sectors(buf, n, pnum); | |
850 | ||
851 | buf += BDRV_SECTOR_SIZE * *pnum; | |
852 | n -= *pnum; | |
853 | num_checked += *pnum; | |
854 | if (ret) { | |
855 | num_used = num_checked; | |
856 | } else if (*pnum >= min) { | |
857 | break; | |
858 | } | |
859 | } | |
860 | ||
861 | *pnum = num_used; | |
862 | return 1; | |
863 | } | |
864 | ||
3e85c6fd KW |
865 | /* |
866 | * Compares two buffers sector by sector. Returns 0 if the first sector of both | |
867 | * buffers matches, non-zero otherwise. | |
868 | * | |
869 | * pnum is set to the number of sectors (including and immediately following | |
870 | * the first one) that are known to have the same comparison result | |
871 | */ | |
872 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, | |
873 | int *pnum) | |
874 | { | |
875 | int res, i; | |
876 | ||
877 | if (n <= 0) { | |
878 | *pnum = 0; | |
879 | return 0; | |
880 | } | |
881 | ||
882 | res = !!memcmp(buf1, buf2, 512); | |
883 | for(i = 1; i < n; i++) { | |
884 | buf1 += 512; | |
885 | buf2 += 512; | |
886 | ||
887 | if (!!memcmp(buf1, buf2, 512) != res) { | |
888 | break; | |
889 | } | |
890 | } | |
891 | ||
892 | *pnum = i; | |
893 | return res; | |
894 | } | |
895 | ||
80ee15a6 | 896 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
ea2384d3 | 897 | |
d14ed18c MR |
898 | static int64_t sectors_to_bytes(int64_t sectors) |
899 | { | |
900 | return sectors << BDRV_SECTOR_BITS; | |
901 | } | |
902 | ||
903 | static int64_t sectors_to_process(int64_t total, int64_t from) | |
904 | { | |
905 | return MIN(total - from, IO_BUF_SIZE >> BDRV_SECTOR_BITS); | |
906 | } | |
907 | ||
908 | /* | |
909 | * Check if passed sectors are empty (not allocated or contain only 0 bytes) | |
910 | * | |
911 | * Returns 0 in case sectors are filled with 0, 1 if sectors contain non-zero | |
912 | * data and negative value on error. | |
913 | * | |
914 | * @param bs: Driver used for accessing file | |
915 | * @param sect_num: Number of first sector to check | |
916 | * @param sect_count: Number of sectors to check | |
917 | * @param filename: Name of disk file we are checking (logging purpose) | |
918 | * @param buffer: Allocated buffer for storing read data | |
919 | * @param quiet: Flag for quiet mode | |
920 | */ | |
921 | static int check_empty_sectors(BlockDriverState *bs, int64_t sect_num, | |
922 | int sect_count, const char *filename, | |
923 | uint8_t *buffer, bool quiet) | |
924 | { | |
925 | int pnum, ret = 0; | |
926 | ret = bdrv_read(bs, sect_num, buffer, sect_count); | |
927 | if (ret < 0) { | |
928 | error_report("Error while reading offset %" PRId64 " of %s: %s", | |
929 | sectors_to_bytes(sect_num), filename, strerror(-ret)); | |
930 | return ret; | |
931 | } | |
932 | ret = is_allocated_sectors(buffer, sect_count, &pnum); | |
933 | if (ret || pnum != sect_count) { | |
934 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", | |
935 | sectors_to_bytes(ret ? sect_num : sect_num + pnum)); | |
936 | return 1; | |
937 | } | |
938 | ||
939 | return 0; | |
940 | } | |
941 | ||
942 | /* | |
943 | * Compares two images. Exit codes: | |
944 | * | |
945 | * 0 - Images are identical | |
946 | * 1 - Images differ | |
947 | * >1 - Error occurred | |
948 | */ | |
949 | static int img_compare(int argc, char **argv) | |
950 | { | |
951 | const char *fmt1 = NULL, *fmt2 = NULL, *filename1, *filename2; | |
952 | BlockDriverState *bs1, *bs2; | |
953 | int64_t total_sectors1, total_sectors2; | |
954 | uint8_t *buf1 = NULL, *buf2 = NULL; | |
955 | int pnum1, pnum2; | |
956 | int allocated1, allocated2; | |
957 | int ret = 0; /* return value - 0 Ident, 1 Different, >1 Error */ | |
958 | bool progress = false, quiet = false, strict = false; | |
959 | int64_t total_sectors; | |
960 | int64_t sector_num = 0; | |
961 | int64_t nb_sectors; | |
962 | int c, pnum; | |
963 | uint64_t bs_sectors; | |
964 | uint64_t progress_base; | |
965 | ||
966 | for (;;) { | |
967 | c = getopt(argc, argv, "hpf:F:sq"); | |
968 | if (c == -1) { | |
969 | break; | |
970 | } | |
971 | switch (c) { | |
972 | case '?': | |
973 | case 'h': | |
974 | help(); | |
975 | break; | |
976 | case 'f': | |
977 | fmt1 = optarg; | |
978 | break; | |
979 | case 'F': | |
980 | fmt2 = optarg; | |
981 | break; | |
982 | case 'p': | |
983 | progress = true; | |
984 | break; | |
985 | case 'q': | |
986 | quiet = true; | |
987 | break; | |
988 | case 's': | |
989 | strict = true; | |
990 | break; | |
991 | } | |
992 | } | |
993 | ||
994 | /* Progress is not shown in Quiet mode */ | |
995 | if (quiet) { | |
996 | progress = false; | |
997 | } | |
998 | ||
999 | ||
fc11eb26 | 1000 | if (optind != argc - 2) { |
ac1307ab | 1001 | error_exit("Expecting two image file names"); |
d14ed18c MR |
1002 | } |
1003 | filename1 = argv[optind++]; | |
1004 | filename2 = argv[optind++]; | |
1005 | ||
1006 | /* Initialize before goto out */ | |
1007 | qemu_progress_init(progress, 2.0); | |
1008 | ||
9ffe3332 | 1009 | bs1 = bdrv_new_open("image 1", filename1, fmt1, BDRV_O_FLAGS, true, quiet); |
d14ed18c MR |
1010 | if (!bs1) { |
1011 | error_report("Can't open file %s", filename1); | |
1012 | ret = 2; | |
1013 | goto out3; | |
1014 | } | |
1015 | ||
9ffe3332 | 1016 | bs2 = bdrv_new_open("image 2", filename2, fmt2, BDRV_O_FLAGS, true, quiet); |
d14ed18c MR |
1017 | if (!bs2) { |
1018 | error_report("Can't open file %s", filename2); | |
1019 | ret = 2; | |
1020 | goto out2; | |
1021 | } | |
1022 | ||
1023 | buf1 = qemu_blockalign(bs1, IO_BUF_SIZE); | |
1024 | buf2 = qemu_blockalign(bs2, IO_BUF_SIZE); | |
1025 | bdrv_get_geometry(bs1, &bs_sectors); | |
1026 | total_sectors1 = bs_sectors; | |
1027 | bdrv_get_geometry(bs2, &bs_sectors); | |
1028 | total_sectors2 = bs_sectors; | |
1029 | total_sectors = MIN(total_sectors1, total_sectors2); | |
1030 | progress_base = MAX(total_sectors1, total_sectors2); | |
1031 | ||
1032 | qemu_progress_print(0, 100); | |
1033 | ||
1034 | if (strict && total_sectors1 != total_sectors2) { | |
1035 | ret = 1; | |
1036 | qprintf(quiet, "Strict mode: Image size mismatch!\n"); | |
1037 | goto out; | |
1038 | } | |
1039 | ||
1040 | for (;;) { | |
1041 | nb_sectors = sectors_to_process(total_sectors, sector_num); | |
1042 | if (nb_sectors <= 0) { | |
1043 | break; | |
1044 | } | |
1045 | allocated1 = bdrv_is_allocated_above(bs1, NULL, sector_num, nb_sectors, | |
1046 | &pnum1); | |
1047 | if (allocated1 < 0) { | |
1048 | ret = 3; | |
1049 | error_report("Sector allocation test failed for %s", filename1); | |
1050 | goto out; | |
1051 | } | |
1052 | ||
1053 | allocated2 = bdrv_is_allocated_above(bs2, NULL, sector_num, nb_sectors, | |
1054 | &pnum2); | |
1055 | if (allocated2 < 0) { | |
1056 | ret = 3; | |
1057 | error_report("Sector allocation test failed for %s", filename2); | |
1058 | goto out; | |
1059 | } | |
1060 | nb_sectors = MIN(pnum1, pnum2); | |
1061 | ||
1062 | if (allocated1 == allocated2) { | |
1063 | if (allocated1) { | |
1064 | ret = bdrv_read(bs1, sector_num, buf1, nb_sectors); | |
1065 | if (ret < 0) { | |
1066 | error_report("Error while reading offset %" PRId64 " of %s:" | |
1067 | " %s", sectors_to_bytes(sector_num), filename1, | |
1068 | strerror(-ret)); | |
1069 | ret = 4; | |
1070 | goto out; | |
1071 | } | |
1072 | ret = bdrv_read(bs2, sector_num, buf2, nb_sectors); | |
1073 | if (ret < 0) { | |
1074 | error_report("Error while reading offset %" PRId64 | |
1075 | " of %s: %s", sectors_to_bytes(sector_num), | |
1076 | filename2, strerror(-ret)); | |
1077 | ret = 4; | |
1078 | goto out; | |
1079 | } | |
1080 | ret = compare_sectors(buf1, buf2, nb_sectors, &pnum); | |
1081 | if (ret || pnum != nb_sectors) { | |
d14ed18c MR |
1082 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
1083 | sectors_to_bytes( | |
1084 | ret ? sector_num : sector_num + pnum)); | |
36452f12 | 1085 | ret = 1; |
d14ed18c MR |
1086 | goto out; |
1087 | } | |
1088 | } | |
1089 | } else { | |
1090 | if (strict) { | |
1091 | ret = 1; | |
1092 | qprintf(quiet, "Strict mode: Offset %" PRId64 | |
1093 | " allocation mismatch!\n", | |
1094 | sectors_to_bytes(sector_num)); | |
1095 | goto out; | |
1096 | } | |
1097 | ||
1098 | if (allocated1) { | |
1099 | ret = check_empty_sectors(bs1, sector_num, nb_sectors, | |
1100 | filename1, buf1, quiet); | |
1101 | } else { | |
1102 | ret = check_empty_sectors(bs2, sector_num, nb_sectors, | |
1103 | filename2, buf1, quiet); | |
1104 | } | |
1105 | if (ret) { | |
1106 | if (ret < 0) { | |
d14ed18c MR |
1107 | error_report("Error while reading offset %" PRId64 ": %s", |
1108 | sectors_to_bytes(sector_num), strerror(-ret)); | |
36452f12 | 1109 | ret = 4; |
d14ed18c MR |
1110 | } |
1111 | goto out; | |
1112 | } | |
1113 | } | |
1114 | sector_num += nb_sectors; | |
1115 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1116 | } | |
1117 | ||
1118 | if (total_sectors1 != total_sectors2) { | |
1119 | BlockDriverState *bs_over; | |
1120 | int64_t total_sectors_over; | |
1121 | const char *filename_over; | |
1122 | ||
1123 | qprintf(quiet, "Warning: Image size mismatch!\n"); | |
1124 | if (total_sectors1 > total_sectors2) { | |
1125 | total_sectors_over = total_sectors1; | |
1126 | bs_over = bs1; | |
1127 | filename_over = filename1; | |
1128 | } else { | |
1129 | total_sectors_over = total_sectors2; | |
1130 | bs_over = bs2; | |
1131 | filename_over = filename2; | |
1132 | } | |
1133 | ||
1134 | for (;;) { | |
1135 | nb_sectors = sectors_to_process(total_sectors_over, sector_num); | |
1136 | if (nb_sectors <= 0) { | |
1137 | break; | |
1138 | } | |
1139 | ret = bdrv_is_allocated_above(bs_over, NULL, sector_num, | |
1140 | nb_sectors, &pnum); | |
1141 | if (ret < 0) { | |
1142 | ret = 3; | |
1143 | error_report("Sector allocation test failed for %s", | |
1144 | filename_over); | |
1145 | goto out; | |
1146 | ||
1147 | } | |
1148 | nb_sectors = pnum; | |
1149 | if (ret) { | |
1150 | ret = check_empty_sectors(bs_over, sector_num, nb_sectors, | |
1151 | filename_over, buf1, quiet); | |
1152 | if (ret) { | |
1153 | if (ret < 0) { | |
d14ed18c MR |
1154 | error_report("Error while reading offset %" PRId64 |
1155 | " of %s: %s", sectors_to_bytes(sector_num), | |
1156 | filename_over, strerror(-ret)); | |
36452f12 | 1157 | ret = 4; |
d14ed18c MR |
1158 | } |
1159 | goto out; | |
1160 | } | |
1161 | } | |
1162 | sector_num += nb_sectors; | |
1163 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1164 | } | |
1165 | } | |
1166 | ||
1167 | qprintf(quiet, "Images are identical.\n"); | |
1168 | ret = 0; | |
1169 | ||
1170 | out: | |
4f6fd349 | 1171 | bdrv_unref(bs2); |
d14ed18c MR |
1172 | qemu_vfree(buf1); |
1173 | qemu_vfree(buf2); | |
1174 | out2: | |
4f6fd349 | 1175 | bdrv_unref(bs1); |
d14ed18c MR |
1176 | out3: |
1177 | qemu_progress_end(); | |
1178 | return ret; | |
1179 | } | |
1180 | ||
ea2384d3 FB |
1181 | static int img_convert(int argc, char **argv) |
1182 | { | |
24f833cd | 1183 | int c, n, n1, bs_n, bs_i, compress, cluster_sectors, skip_create; |
13c28af8 | 1184 | int64_t ret = 0; |
661a0f71 FS |
1185 | int progress = 0, flags; |
1186 | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; | |
b50cbabc | 1187 | BlockDriver *drv, *proto_drv; |
c2abccec | 1188 | BlockDriverState **bs = NULL, *out_bs = NULL; |
802c3d4c | 1189 | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
96b8f136 | 1190 | uint64_t bs_sectors; |
c2abccec | 1191 | uint8_t * buf = NULL; |
f2521c90 | 1192 | size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE; |
ea2384d3 | 1193 | const uint8_t *buf1; |
faea38e7 | 1194 | BlockDriverInfo bdi; |
b50cbabc | 1195 | QEMUOptionParameter *param = NULL, *create_options = NULL; |
a18953fb | 1196 | QEMUOptionParameter *out_baseimg_param; |
efa84d43 | 1197 | char *options = NULL; |
51ef6727 | 1198 | const char *snapshot_name = NULL; |
a22f123c | 1199 | int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ |
f382d43a | 1200 | bool quiet = false; |
cc84d90f | 1201 | Error *local_err = NULL; |
ef80654d | 1202 | QemuOpts *sn_opts = NULL; |
ea2384d3 FB |
1203 | |
1204 | fmt = NULL; | |
1205 | out_fmt = "raw"; | |
661a0f71 | 1206 | cache = "unsafe"; |
f58c7b35 | 1207 | out_baseimg = NULL; |
eec77d9e | 1208 | compress = 0; |
b2e10493 | 1209 | skip_create = 0; |
ea2384d3 | 1210 | for(;;) { |
ef80654d | 1211 | c = getopt(argc, argv, "f:O:B:s:hce6o:pS:t:qnl:"); |
b8fb60da | 1212 | if (c == -1) { |
ea2384d3 | 1213 | break; |
b8fb60da | 1214 | } |
ea2384d3 | 1215 | switch(c) { |
ef87394c | 1216 | case '?': |
ea2384d3 FB |
1217 | case 'h': |
1218 | help(); | |
1219 | break; | |
1220 | case 'f': | |
1221 | fmt = optarg; | |
1222 | break; | |
1223 | case 'O': | |
1224 | out_fmt = optarg; | |
1225 | break; | |
f58c7b35 TS |
1226 | case 'B': |
1227 | out_baseimg = optarg; | |
1228 | break; | |
ea2384d3 | 1229 | case 'c': |
eec77d9e | 1230 | compress = 1; |
ea2384d3 FB |
1231 | break; |
1232 | case 'e': | |
9d42e15d | 1233 | error_report("option -e is deprecated, please use \'-o " |
eec77d9e | 1234 | "encryption\' instead!"); |
2dc8328b | 1235 | ret = -1; |
64bb01aa | 1236 | goto fail_getopt; |
ec36ba14 | 1237 | case '6': |
9d42e15d | 1238 | error_report("option -6 is deprecated, please use \'-o " |
eec77d9e | 1239 | "compat6\' instead!"); |
2dc8328b | 1240 | ret = -1; |
64bb01aa | 1241 | goto fail_getopt; |
efa84d43 | 1242 | case 'o': |
2dc8328b KW |
1243 | if (!is_valid_option_list(optarg)) { |
1244 | error_report("Invalid option list: %s", optarg); | |
1245 | ret = -1; | |
64bb01aa | 1246 | goto fail_getopt; |
2dc8328b KW |
1247 | } |
1248 | if (!options) { | |
1249 | options = g_strdup(optarg); | |
1250 | } else { | |
1251 | char *old_options = options; | |
1252 | options = g_strdup_printf("%s,%s", options, optarg); | |
1253 | g_free(old_options); | |
1254 | } | |
efa84d43 | 1255 | break; |
51ef6727 | 1256 | case 's': |
1257 | snapshot_name = optarg; | |
1258 | break; | |
ef80654d WX |
1259 | case 'l': |
1260 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
1261 | sn_opts = qemu_opts_parse(&internal_snapshot_opts, optarg, 0); | |
1262 | if (!sn_opts) { | |
1263 | error_report("Failed in parsing snapshot param '%s'", | |
1264 | optarg); | |
2dc8328b | 1265 | ret = -1; |
64bb01aa | 1266 | goto fail_getopt; |
ef80654d WX |
1267 | } |
1268 | } else { | |
1269 | snapshot_name = optarg; | |
1270 | } | |
1271 | break; | |
a22f123c KW |
1272 | case 'S': |
1273 | { | |
1274 | int64_t sval; | |
e36b3695 MA |
1275 | char *end; |
1276 | sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B); | |
1277 | if (sval < 0 || *end) { | |
a22f123c | 1278 | error_report("Invalid minimum zero buffer size for sparse output specified"); |
2dc8328b | 1279 | ret = -1; |
64bb01aa | 1280 | goto fail_getopt; |
a22f123c KW |
1281 | } |
1282 | ||
1283 | min_sparse = sval / BDRV_SECTOR_SIZE; | |
1284 | break; | |
1285 | } | |
6b837bc4 JS |
1286 | case 'p': |
1287 | progress = 1; | |
1288 | break; | |
661a0f71 FS |
1289 | case 't': |
1290 | cache = optarg; | |
1291 | break; | |
f382d43a MR |
1292 | case 'q': |
1293 | quiet = true; | |
1294 | break; | |
b2e10493 AD |
1295 | case 'n': |
1296 | skip_create = 1; | |
1297 | break; | |
ea2384d3 FB |
1298 | } |
1299 | } | |
3b46e624 | 1300 | |
64bb01aa | 1301 | /* Initialize before goto out */ |
f382d43a MR |
1302 | if (quiet) { |
1303 | progress = 0; | |
1304 | } | |
64bb01aa KW |
1305 | qemu_progress_init(progress, 1.0); |
1306 | ||
f382d43a | 1307 | |
926c2d23 | 1308 | bs_n = argc - optind - 1; |
a283cb6e | 1309 | out_filename = bs_n >= 1 ? argv[argc - 1] : NULL; |
f58c7b35 | 1310 | |
2dc8328b | 1311 | if (options && has_help_option(options)) { |
4ac8aacd JS |
1312 | ret = print_block_option_help(out_filename, out_fmt); |
1313 | goto out; | |
1314 | } | |
1315 | ||
a283cb6e | 1316 | if (bs_n < 1) { |
ac1307ab | 1317 | error_exit("Must specify image file name"); |
a283cb6e KW |
1318 | } |
1319 | ||
1320 | ||
c2abccec | 1321 | if (bs_n > 1 && out_baseimg) { |
15654a6d JS |
1322 | error_report("-B makes no sense when concatenating multiple input " |
1323 | "images"); | |
31ca34b8 JS |
1324 | ret = -1; |
1325 | goto out; | |
c2abccec | 1326 | } |
f8111c24 | 1327 | |
6b837bc4 JS |
1328 | qemu_progress_print(0, 100); |
1329 | ||
7267c094 | 1330 | bs = g_malloc0(bs_n * sizeof(BlockDriverState *)); |
926c2d23 AZ |
1331 | |
1332 | total_sectors = 0; | |
1333 | for (bs_i = 0; bs_i < bs_n; bs_i++) { | |
9ffe3332 KW |
1334 | char *id = bs_n > 1 ? g_strdup_printf("source %d", bs_i) |
1335 | : g_strdup("source"); | |
1336 | bs[bs_i] = bdrv_new_open(id, argv[optind + bs_i], fmt, BDRV_O_FLAGS, | |
1337 | true, quiet); | |
1338 | g_free(id); | |
c2abccec | 1339 | if (!bs[bs_i]) { |
15654a6d | 1340 | error_report("Could not open '%s'", argv[optind + bs_i]); |
c2abccec MK |
1341 | ret = -1; |
1342 | goto out; | |
1343 | } | |
926c2d23 AZ |
1344 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
1345 | total_sectors += bs_sectors; | |
1346 | } | |
ea2384d3 | 1347 | |
ef80654d WX |
1348 | if (sn_opts) { |
1349 | ret = bdrv_snapshot_load_tmp(bs[0], | |
1350 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), | |
1351 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
1352 | &local_err); | |
1353 | } else if (snapshot_name != NULL) { | |
51ef6727 | 1354 | if (bs_n > 1) { |
6daf194d | 1355 | error_report("No support for concatenating multiple snapshot"); |
51ef6727 | 1356 | ret = -1; |
1357 | goto out; | |
1358 | } | |
7b4c4781 WX |
1359 | |
1360 | bdrv_snapshot_load_tmp_by_id_or_name(bs[0], snapshot_name, &local_err); | |
ef80654d | 1361 | } |
84d18f06 | 1362 | if (local_err) { |
ef80654d WX |
1363 | error_report("Failed to load snapshot: %s", |
1364 | error_get_pretty(local_err)); | |
1365 | error_free(local_err); | |
1366 | ret = -1; | |
1367 | goto out; | |
51ef6727 | 1368 | } |
1369 | ||
efa84d43 | 1370 | /* Find driver and parse its options */ |
ea2384d3 | 1371 | drv = bdrv_find_format(out_fmt); |
c2abccec | 1372 | if (!drv) { |
15654a6d | 1373 | error_report("Unknown file format '%s'", out_fmt); |
c2abccec MK |
1374 | ret = -1; |
1375 | goto out; | |
1376 | } | |
efa84d43 | 1377 | |
98289620 | 1378 | proto_drv = bdrv_find_protocol(out_filename, true); |
c2abccec | 1379 | if (!proto_drv) { |
15654a6d | 1380 | error_report("Unknown protocol '%s'", out_filename); |
c2abccec MK |
1381 | ret = -1; |
1382 | goto out; | |
1383 | } | |
b50cbabc MK |
1384 | |
1385 | create_options = append_option_parameters(create_options, | |
1386 | drv->create_options); | |
1387 | create_options = append_option_parameters(create_options, | |
1388 | proto_drv->create_options); | |
db08adf5 | 1389 | |
efa84d43 | 1390 | if (options) { |
b50cbabc | 1391 | param = parse_option_parameters(options, create_options, param); |
efa84d43 | 1392 | if (param == NULL) { |
15654a6d | 1393 | error_report("Invalid options for file format '%s'.", out_fmt); |
c2abccec MK |
1394 | ret = -1; |
1395 | goto out; | |
efa84d43 KW |
1396 | } |
1397 | } else { | |
b50cbabc | 1398 | param = parse_option_parameters("", create_options, param); |
efa84d43 KW |
1399 | } |
1400 | ||
1401 | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512); | |
eec77d9e | 1402 | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL); |
c2abccec MK |
1403 | if (ret < 0) { |
1404 | goto out; | |
1405 | } | |
efa84d43 | 1406 | |
a18953fb KW |
1407 | /* Get backing file name if -o backing_file was used */ |
1408 | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); | |
1409 | if (out_baseimg_param) { | |
1410 | out_baseimg = out_baseimg_param->value.s; | |
1411 | } | |
1412 | ||
efa84d43 | 1413 | /* Check if compression is supported */ |
eec77d9e | 1414 | if (compress) { |
efa84d43 KW |
1415 | QEMUOptionParameter *encryption = |
1416 | get_option_parameter(param, BLOCK_OPT_ENCRYPT); | |
41521fa4 KW |
1417 | QEMUOptionParameter *preallocation = |
1418 | get_option_parameter(param, BLOCK_OPT_PREALLOC); | |
efa84d43 KW |
1419 | |
1420 | if (!drv->bdrv_write_compressed) { | |
15654a6d | 1421 | error_report("Compression not supported for this file format"); |
c2abccec MK |
1422 | ret = -1; |
1423 | goto out; | |
efa84d43 KW |
1424 | } |
1425 | ||
1426 | if (encryption && encryption->value.n) { | |
15654a6d JS |
1427 | error_report("Compression and encryption not supported at " |
1428 | "the same time"); | |
c2abccec MK |
1429 | ret = -1; |
1430 | goto out; | |
efa84d43 | 1431 | } |
41521fa4 KW |
1432 | |
1433 | if (preallocation && preallocation->value.s | |
1434 | && strcmp(preallocation->value.s, "off")) | |
1435 | { | |
1436 | error_report("Compression and preallocation not supported at " | |
1437 | "the same time"); | |
1438 | ret = -1; | |
1439 | goto out; | |
1440 | } | |
efa84d43 KW |
1441 | } |
1442 | ||
b2e10493 AD |
1443 | if (!skip_create) { |
1444 | /* Create the new image */ | |
cc84d90f | 1445 | ret = bdrv_create(drv, out_filename, param, &local_err); |
b2e10493 | 1446 | if (ret < 0) { |
cc84d90f HR |
1447 | error_report("%s: error while converting %s: %s", |
1448 | out_filename, out_fmt, error_get_pretty(local_err)); | |
1449 | error_free(local_err); | |
b2e10493 | 1450 | goto out; |
ea2384d3 FB |
1451 | } |
1452 | } | |
3b46e624 | 1453 | |
5a37b60a | 1454 | flags = min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR; |
c3993cdc | 1455 | ret = bdrv_parse_cache_flags(cache, &flags); |
661a0f71 FS |
1456 | if (ret < 0) { |
1457 | error_report("Invalid cache option: %s", cache); | |
1458 | return -1; | |
1459 | } | |
1460 | ||
9ffe3332 | 1461 | out_bs = bdrv_new_open("target", out_filename, out_fmt, flags, true, quiet); |
c2abccec MK |
1462 | if (!out_bs) { |
1463 | ret = -1; | |
1464 | goto out; | |
1465 | } | |
ea2384d3 | 1466 | |
926c2d23 AZ |
1467 | bs_i = 0; |
1468 | bs_offset = 0; | |
1469 | bdrv_get_geometry(bs[0], &bs_sectors); | |
f2521c90 PL |
1470 | |
1471 | /* increase bufsectors from the default 4096 (2M) if opt_transfer_length | |
1472 | * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB) | |
1473 | * as maximum. */ | |
1474 | bufsectors = MIN(32768, | |
1475 | MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length, | |
1476 | out_bs->bl.discard_alignment)) | |
1477 | ); | |
1478 | ||
1479 | buf = qemu_blockalign(out_bs, bufsectors * BDRV_SECTOR_SIZE); | |
926c2d23 | 1480 | |
b2e10493 AD |
1481 | if (skip_create) { |
1482 | int64_t output_length = bdrv_getlength(out_bs); | |
1483 | if (output_length < 0) { | |
1484 | error_report("unable to get output image length: %s\n", | |
1485 | strerror(-output_length)); | |
1486 | ret = -1; | |
1487 | goto out; | |
1488 | } else if (output_length < total_sectors << BDRV_SECTOR_BITS) { | |
1489 | error_report("output file is smaller than input file"); | |
1490 | ret = -1; | |
1491 | goto out; | |
1492 | } | |
1493 | } | |
1494 | ||
24f833cd PL |
1495 | cluster_sectors = 0; |
1496 | ret = bdrv_get_info(out_bs, &bdi); | |
1497 | if (ret < 0) { | |
1498 | if (compress) { | |
15654a6d | 1499 | error_report("could not get block driver info"); |
c2abccec MK |
1500 | goto out; |
1501 | } | |
24f833cd | 1502 | } else { |
85f49cad | 1503 | compress = compress || bdi.needs_compressed_writes; |
24f833cd PL |
1504 | cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE; |
1505 | } | |
1506 | ||
1507 | if (compress) { | |
1508 | if (cluster_sectors <= 0 || cluster_sectors > bufsectors) { | |
15654a6d | 1509 | error_report("invalid cluster size"); |
c2abccec MK |
1510 | ret = -1; |
1511 | goto out; | |
1512 | } | |
ea2384d3 | 1513 | sector_num = 0; |
6b837bc4 JS |
1514 | |
1515 | nb_sectors = total_sectors; | |
6b837bc4 | 1516 | |
ea2384d3 | 1517 | for(;;) { |
926c2d23 AZ |
1518 | int64_t bs_num; |
1519 | int remainder; | |
1520 | uint8_t *buf2; | |
1521 | ||
ea2384d3 FB |
1522 | nb_sectors = total_sectors - sector_num; |
1523 | if (nb_sectors <= 0) | |
1524 | break; | |
1525 | if (nb_sectors >= cluster_sectors) | |
1526 | n = cluster_sectors; | |
1527 | else | |
1528 | n = nb_sectors; | |
926c2d23 AZ |
1529 | |
1530 | bs_num = sector_num - bs_offset; | |
1531 | assert (bs_num >= 0); | |
1532 | remainder = n; | |
1533 | buf2 = buf; | |
1534 | while (remainder > 0) { | |
1535 | int nlow; | |
1536 | while (bs_num == bs_sectors) { | |
1537 | bs_i++; | |
1538 | assert (bs_i < bs_n); | |
1539 | bs_offset += bs_sectors; | |
1540 | bdrv_get_geometry(bs[bs_i], &bs_sectors); | |
1541 | bs_num = 0; | |
0bfcd599 BS |
1542 | /* printf("changing part: sector_num=%" PRId64 ", " |
1543 | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64 | |
1544 | "\n", sector_num, bs_i, bs_offset, bs_sectors); */ | |
926c2d23 AZ |
1545 | } |
1546 | assert (bs_num < bs_sectors); | |
1547 | ||
1548 | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; | |
1549 | ||
c2abccec MK |
1550 | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
1551 | if (ret < 0) { | |
3fba9d81 SH |
1552 | error_report("error while reading sector %" PRId64 ": %s", |
1553 | bs_num, strerror(-ret)); | |
c2abccec MK |
1554 | goto out; |
1555 | } | |
926c2d23 AZ |
1556 | |
1557 | buf2 += nlow * 512; | |
1558 | bs_num += nlow; | |
1559 | ||
1560 | remainder -= nlow; | |
1561 | } | |
1562 | assert (remainder == 0); | |
1563 | ||
54f106d5 SH |
1564 | if (!buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)) { |
1565 | ret = bdrv_write_compressed(out_bs, sector_num, buf, n); | |
c2abccec | 1566 | if (ret != 0) { |
3fba9d81 SH |
1567 | error_report("error while compressing sector %" PRId64 |
1568 | ": %s", sector_num, strerror(-ret)); | |
c2abccec MK |
1569 | goto out; |
1570 | } | |
ea2384d3 FB |
1571 | } |
1572 | sector_num += n; | |
13c28af8 | 1573 | qemu_progress_print(100.0 * sector_num / total_sectors, 0); |
ea2384d3 | 1574 | } |
faea38e7 FB |
1575 | /* signal EOF to align */ |
1576 | bdrv_write_compressed(out_bs, 0, NULL, 0); | |
ea2384d3 | 1577 | } else { |
802c3d4c PL |
1578 | int64_t sectors_to_read, sectors_read, sector_num_next_status; |
1579 | bool count_allocated_sectors; | |
11b6699a | 1580 | int has_zero_init = min_sparse ? bdrv_has_zero_init(out_bs) : 0; |
f2feebbd | 1581 | |
5a37b60a PL |
1582 | if (!has_zero_init && bdrv_can_write_zeroes_with_unmap(out_bs)) { |
1583 | ret = bdrv_make_zero(out_bs, BDRV_REQ_MAY_UNMAP); | |
1584 | if (ret < 0) { | |
1585 | goto out; | |
1586 | } | |
1587 | has_zero_init = 1; | |
1588 | } | |
1589 | ||
802c3d4c PL |
1590 | sectors_to_read = total_sectors; |
1591 | count_allocated_sectors = progress && (out_baseimg || has_zero_init); | |
1592 | restart: | |
f58c7b35 | 1593 | sector_num = 0; // total number of sectors converted so far |
802c3d4c PL |
1594 | sectors_read = 0; |
1595 | sector_num_next_status = 0; | |
6b837bc4 | 1596 | |
ea2384d3 FB |
1597 | for(;;) { |
1598 | nb_sectors = total_sectors - sector_num; | |
b8fb60da | 1599 | if (nb_sectors <= 0) { |
802c3d4c PL |
1600 | if (count_allocated_sectors) { |
1601 | sectors_to_read = sectors_read; | |
1602 | count_allocated_sectors = false; | |
1603 | goto restart; | |
1604 | } | |
13c28af8 | 1605 | ret = 0; |
ea2384d3 | 1606 | break; |
b8fb60da | 1607 | } |
926c2d23 AZ |
1608 | |
1609 | while (sector_num - bs_offset >= bs_sectors) { | |
1610 | bs_i ++; | |
1611 | assert (bs_i < bs_n); | |
1612 | bs_offset += bs_sectors; | |
1613 | bdrv_get_geometry(bs[bs_i], &bs_sectors); | |
0bfcd599 BS |
1614 | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, " |
1615 | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n", | |
926c2d23 AZ |
1616 | sector_num, bs_i, bs_offset, bs_sectors); */ |
1617 | } | |
1618 | ||
13c28af8 PL |
1619 | if ((out_baseimg || has_zero_init) && |
1620 | sector_num >= sector_num_next_status) { | |
1621 | n = nb_sectors > INT_MAX ? INT_MAX : nb_sectors; | |
1622 | ret = bdrv_get_block_status(bs[bs_i], sector_num - bs_offset, | |
1623 | n, &n1); | |
e4a86f88 | 1624 | if (ret < 0) { |
13c28af8 PL |
1625 | error_report("error while reading block status of sector %" |
1626 | PRId64 ": %s", sector_num - bs_offset, | |
1627 | strerror(-ret)); | |
e4a86f88 PB |
1628 | goto out; |
1629 | } | |
13c28af8 PL |
1630 | /* If the output image is zero initialized, we are not working |
1631 | * on a shared base and the input is zero we can skip the next | |
1632 | * n1 sectors */ | |
1633 | if (has_zero_init && !out_baseimg && (ret & BDRV_BLOCK_ZERO)) { | |
e4a86f88 PB |
1634 | sector_num += n1; |
1635 | continue; | |
93c65b47 | 1636 | } |
13c28af8 PL |
1637 | /* If the output image is being created as a copy on write |
1638 | * image, assume that sectors which are unallocated in the | |
1639 | * input image are present in both the output's and input's | |
1640 | * base images (no need to copy them). */ | |
1641 | if (out_baseimg) { | |
1642 | if (!(ret & BDRV_BLOCK_DATA)) { | |
1643 | sector_num += n1; | |
1644 | continue; | |
1645 | } | |
1646 | /* The next 'n1' sectors are allocated in the input image. | |
1647 | * Copy only those as they may be followed by unallocated | |
1648 | * sectors. */ | |
1649 | nb_sectors = n1; | |
1650 | } | |
1651 | /* avoid redundant callouts to get_block_status */ | |
1652 | sector_num_next_status = sector_num + n1; | |
f58c7b35 TS |
1653 | } |
1654 | ||
f2521c90 | 1655 | n = MIN(nb_sectors, bufsectors); |
24f833cd PL |
1656 | |
1657 | /* round down request length to an aligned sector, but | |
1658 | * do not bother doing this on short requests. They happen | |
1659 | * when we found an all-zero area, and the next sector to | |
1660 | * write will not be sector_num + n. */ | |
1661 | if (cluster_sectors > 0 && n >= cluster_sectors) { | |
1662 | int64_t next_aligned_sector = (sector_num + n); | |
1663 | next_aligned_sector -= next_aligned_sector % cluster_sectors; | |
1664 | if (sector_num + n > next_aligned_sector) { | |
1665 | n = next_aligned_sector - sector_num; | |
1666 | } | |
1667 | } | |
1668 | ||
13c28af8 | 1669 | n = MIN(n, bs_sectors - (sector_num - bs_offset)); |
13c28af8 | 1670 | |
802c3d4c PL |
1671 | sectors_read += n; |
1672 | if (count_allocated_sectors) { | |
1673 | sector_num += n; | |
1674 | continue; | |
1675 | } | |
1676 | ||
1677 | n1 = n; | |
c2abccec MK |
1678 | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
1679 | if (ret < 0) { | |
3fba9d81 SH |
1680 | error_report("error while reading sector %" PRId64 ": %s", |
1681 | sector_num - bs_offset, strerror(-ret)); | |
c2abccec MK |
1682 | goto out; |
1683 | } | |
ea2384d3 FB |
1684 | /* NOTE: at the same time we convert, we do not write zero |
1685 | sectors to have a chance to compress the image. Ideally, we | |
1686 | should add a specific call to have the info to go faster */ | |
1687 | buf1 = buf; | |
1688 | while (n > 0) { | |
11212d8f | 1689 | if (!has_zero_init || |
a22f123c | 1690 | is_allocated_sectors_min(buf1, n, &n1, min_sparse)) { |
c2abccec MK |
1691 | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
1692 | if (ret < 0) { | |
3fba9d81 SH |
1693 | error_report("error while writing sector %" PRId64 |
1694 | ": %s", sector_num, strerror(-ret)); | |
c2abccec MK |
1695 | goto out; |
1696 | } | |
ea2384d3 FB |
1697 | } |
1698 | sector_num += n1; | |
1699 | n -= n1; | |
1700 | buf1 += n1 * 512; | |
1701 | } | |
802c3d4c | 1702 | qemu_progress_print(100.0 * sectors_read / sectors_to_read, 0); |
ea2384d3 FB |
1703 | } |
1704 | } | |
c2abccec | 1705 | out: |
13c28af8 PL |
1706 | if (!ret) { |
1707 | qemu_progress_print(100, 0); | |
1708 | } | |
6b837bc4 | 1709 | qemu_progress_end(); |
c2abccec MK |
1710 | free_option_parameters(create_options); |
1711 | free_option_parameters(param); | |
bb1c0597 | 1712 | qemu_vfree(buf); |
ef80654d WX |
1713 | if (sn_opts) { |
1714 | qemu_opts_del(sn_opts); | |
1715 | } | |
c2abccec | 1716 | if (out_bs) { |
4f6fd349 | 1717 | bdrv_unref(out_bs); |
c2abccec | 1718 | } |
31ca34b8 JS |
1719 | if (bs) { |
1720 | for (bs_i = 0; bs_i < bs_n; bs_i++) { | |
1721 | if (bs[bs_i]) { | |
4f6fd349 | 1722 | bdrv_unref(bs[bs_i]); |
31ca34b8 | 1723 | } |
c2abccec | 1724 | } |
7267c094 | 1725 | g_free(bs); |
c2abccec | 1726 | } |
64bb01aa KW |
1727 | fail_getopt: |
1728 | g_free(options); | |
1729 | ||
c2abccec MK |
1730 | if (ret) { |
1731 | return 1; | |
1732 | } | |
ea2384d3 FB |
1733 | return 0; |
1734 | } | |
1735 | ||
57d1a2b6 | 1736 | |
faea38e7 FB |
1737 | static void dump_snapshots(BlockDriverState *bs) |
1738 | { | |
1739 | QEMUSnapshotInfo *sn_tab, *sn; | |
1740 | int nb_sns, i; | |
faea38e7 FB |
1741 | |
1742 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); | |
1743 | if (nb_sns <= 0) | |
1744 | return; | |
1745 | printf("Snapshot list:\n"); | |
5b917044 WX |
1746 | bdrv_snapshot_dump(fprintf, stdout, NULL); |
1747 | printf("\n"); | |
faea38e7 FB |
1748 | for(i = 0; i < nb_sns; i++) { |
1749 | sn = &sn_tab[i]; | |
5b917044 WX |
1750 | bdrv_snapshot_dump(fprintf, stdout, sn); |
1751 | printf("\n"); | |
faea38e7 | 1752 | } |
7267c094 | 1753 | g_free(sn_tab); |
faea38e7 FB |
1754 | } |
1755 | ||
9699bf0d SH |
1756 | static void dump_json_image_info_list(ImageInfoList *list) |
1757 | { | |
4399c438 | 1758 | Error *local_err = NULL; |
9699bf0d SH |
1759 | QString *str; |
1760 | QmpOutputVisitor *ov = qmp_output_visitor_new(); | |
1761 | QObject *obj; | |
1762 | visit_type_ImageInfoList(qmp_output_get_visitor(ov), | |
4399c438 | 1763 | &list, NULL, &local_err); |
9699bf0d SH |
1764 | obj = qmp_output_get_qobject(ov); |
1765 | str = qobject_to_json_pretty(obj); | |
1766 | assert(str != NULL); | |
1767 | printf("%s\n", qstring_get_str(str)); | |
1768 | qobject_decref(obj); | |
1769 | qmp_output_visitor_cleanup(ov); | |
1770 | QDECREF(str); | |
1771 | } | |
1772 | ||
c054b3fd BC |
1773 | static void dump_json_image_info(ImageInfo *info) |
1774 | { | |
4399c438 | 1775 | Error *local_err = NULL; |
c054b3fd BC |
1776 | QString *str; |
1777 | QmpOutputVisitor *ov = qmp_output_visitor_new(); | |
1778 | QObject *obj; | |
1779 | visit_type_ImageInfo(qmp_output_get_visitor(ov), | |
4399c438 | 1780 | &info, NULL, &local_err); |
c054b3fd BC |
1781 | obj = qmp_output_get_qobject(ov); |
1782 | str = qobject_to_json_pretty(obj); | |
1783 | assert(str != NULL); | |
1784 | printf("%s\n", qstring_get_str(str)); | |
1785 | qobject_decref(obj); | |
1786 | qmp_output_visitor_cleanup(ov); | |
1787 | QDECREF(str); | |
1788 | } | |
1789 | ||
9699bf0d SH |
1790 | static void dump_human_image_info_list(ImageInfoList *list) |
1791 | { | |
1792 | ImageInfoList *elem; | |
1793 | bool delim = false; | |
1794 | ||
1795 | for (elem = list; elem; elem = elem->next) { | |
1796 | if (delim) { | |
1797 | printf("\n"); | |
1798 | } | |
1799 | delim = true; | |
1800 | ||
5b917044 | 1801 | bdrv_image_info_dump(fprintf, stdout, elem->value); |
9699bf0d SH |
1802 | } |
1803 | } | |
1804 | ||
1805 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) | |
1806 | { | |
1807 | return strcmp(a, b) == 0; | |
1808 | } | |
1809 | ||
1810 | /** | |
1811 | * Open an image file chain and return an ImageInfoList | |
1812 | * | |
1813 | * @filename: topmost image filename | |
1814 | * @fmt: topmost image format (may be NULL to autodetect) | |
1815 | * @chain: true - enumerate entire backing file chain | |
1816 | * false - only topmost image file | |
1817 | * | |
1818 | * Returns a list of ImageInfo objects or NULL if there was an error opening an | |
1819 | * image file. If there was an error a message will have been printed to | |
1820 | * stderr. | |
1821 | */ | |
1822 | static ImageInfoList *collect_image_info_list(const char *filename, | |
1823 | const char *fmt, | |
1824 | bool chain) | |
1825 | { | |
1826 | ImageInfoList *head = NULL; | |
1827 | ImageInfoList **last = &head; | |
1828 | GHashTable *filenames; | |
43526ec8 | 1829 | Error *err = NULL; |
9699bf0d SH |
1830 | |
1831 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); | |
1832 | ||
1833 | while (filename) { | |
1834 | BlockDriverState *bs; | |
1835 | ImageInfo *info; | |
1836 | ImageInfoList *elem; | |
1837 | ||
1838 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { | |
1839 | error_report("Backing file '%s' creates an infinite loop.", | |
1840 | filename); | |
1841 | goto err; | |
1842 | } | |
1843 | g_hash_table_insert(filenames, (gpointer)filename, NULL); | |
1844 | ||
9ffe3332 KW |
1845 | bs = bdrv_new_open("image", filename, fmt, |
1846 | BDRV_O_FLAGS | BDRV_O_NO_BACKING, false, false); | |
9699bf0d SH |
1847 | if (!bs) { |
1848 | goto err; | |
1849 | } | |
1850 | ||
43526ec8 | 1851 | bdrv_query_image_info(bs, &info, &err); |
84d18f06 | 1852 | if (err) { |
43526ec8 WX |
1853 | error_report("%s", error_get_pretty(err)); |
1854 | error_free(err); | |
bdf866fe | 1855 | bdrv_unref(bs); |
43526ec8 | 1856 | goto err; |
fb0ed453 | 1857 | } |
9699bf0d SH |
1858 | |
1859 | elem = g_new0(ImageInfoList, 1); | |
1860 | elem->value = info; | |
1861 | *last = elem; | |
1862 | last = &elem->next; | |
1863 | ||
4f6fd349 | 1864 | bdrv_unref(bs); |
9699bf0d SH |
1865 | |
1866 | filename = fmt = NULL; | |
1867 | if (chain) { | |
1868 | if (info->has_full_backing_filename) { | |
1869 | filename = info->full_backing_filename; | |
1870 | } else if (info->has_backing_filename) { | |
1871 | filename = info->backing_filename; | |
1872 | } | |
1873 | if (info->has_backing_filename_format) { | |
1874 | fmt = info->backing_filename_format; | |
1875 | } | |
1876 | } | |
1877 | } | |
1878 | g_hash_table_destroy(filenames); | |
1879 | return head; | |
1880 | ||
1881 | err: | |
1882 | qapi_free_ImageInfoList(head); | |
1883 | g_hash_table_destroy(filenames); | |
1884 | return NULL; | |
1885 | } | |
1886 | ||
c054b3fd BC |
1887 | static int img_info(int argc, char **argv) |
1888 | { | |
1889 | int c; | |
1890 | OutputFormat output_format = OFORMAT_HUMAN; | |
9699bf0d | 1891 | bool chain = false; |
c054b3fd | 1892 | const char *filename, *fmt, *output; |
9699bf0d | 1893 | ImageInfoList *list; |
c054b3fd | 1894 | |
ea2384d3 | 1895 | fmt = NULL; |
c054b3fd | 1896 | output = NULL; |
ea2384d3 | 1897 | for(;;) { |
c054b3fd BC |
1898 | int option_index = 0; |
1899 | static const struct option long_options[] = { | |
1900 | {"help", no_argument, 0, 'h'}, | |
1901 | {"format", required_argument, 0, 'f'}, | |
1902 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
9699bf0d | 1903 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
c054b3fd BC |
1904 | {0, 0, 0, 0} |
1905 | }; | |
1906 | c = getopt_long(argc, argv, "f:h", | |
1907 | long_options, &option_index); | |
b8fb60da | 1908 | if (c == -1) { |
ea2384d3 | 1909 | break; |
b8fb60da | 1910 | } |
ea2384d3 | 1911 | switch(c) { |
ef87394c | 1912 | case '?': |
ea2384d3 FB |
1913 | case 'h': |
1914 | help(); | |
1915 | break; | |
1916 | case 'f': | |
1917 | fmt = optarg; | |
1918 | break; | |
c054b3fd BC |
1919 | case OPTION_OUTPUT: |
1920 | output = optarg; | |
1921 | break; | |
9699bf0d SH |
1922 | case OPTION_BACKING_CHAIN: |
1923 | chain = true; | |
1924 | break; | |
ea2384d3 FB |
1925 | } |
1926 | } | |
fc11eb26 | 1927 | if (optind != argc - 1) { |
ac1307ab | 1928 | error_exit("Expecting one image file name"); |
b8fb60da | 1929 | } |
ea2384d3 FB |
1930 | filename = argv[optind++]; |
1931 | ||
c054b3fd BC |
1932 | if (output && !strcmp(output, "json")) { |
1933 | output_format = OFORMAT_JSON; | |
1934 | } else if (output && !strcmp(output, "human")) { | |
1935 | output_format = OFORMAT_HUMAN; | |
1936 | } else if (output) { | |
1937 | error_report("--output must be used with human or json as argument."); | |
c2abccec MK |
1938 | return 1; |
1939 | } | |
c054b3fd | 1940 | |
9699bf0d SH |
1941 | list = collect_image_info_list(filename, fmt, chain); |
1942 | if (!list) { | |
c2abccec | 1943 | return 1; |
faea38e7 | 1944 | } |
c054b3fd | 1945 | |
c054b3fd BC |
1946 | switch (output_format) { |
1947 | case OFORMAT_HUMAN: | |
9699bf0d | 1948 | dump_human_image_info_list(list); |
c054b3fd BC |
1949 | break; |
1950 | case OFORMAT_JSON: | |
9699bf0d SH |
1951 | if (chain) { |
1952 | dump_json_image_info_list(list); | |
1953 | } else { | |
1954 | dump_json_image_info(list->value); | |
1955 | } | |
c054b3fd | 1956 | break; |
faea38e7 | 1957 | } |
c054b3fd | 1958 | |
9699bf0d | 1959 | qapi_free_ImageInfoList(list); |
ea2384d3 FB |
1960 | return 0; |
1961 | } | |
1962 | ||
4c93a13b PB |
1963 | |
1964 | typedef struct MapEntry { | |
1965 | int flags; | |
1966 | int depth; | |
1967 | int64_t start; | |
1968 | int64_t length; | |
1969 | int64_t offset; | |
1970 | BlockDriverState *bs; | |
1971 | } MapEntry; | |
1972 | ||
1973 | static void dump_map_entry(OutputFormat output_format, MapEntry *e, | |
1974 | MapEntry *next) | |
1975 | { | |
1976 | switch (output_format) { | |
1977 | case OFORMAT_HUMAN: | |
1978 | if ((e->flags & BDRV_BLOCK_DATA) && | |
1979 | !(e->flags & BDRV_BLOCK_OFFSET_VALID)) { | |
1980 | error_report("File contains external, encrypted or compressed clusters."); | |
1981 | exit(1); | |
1982 | } | |
1983 | if ((e->flags & (BDRV_BLOCK_DATA|BDRV_BLOCK_ZERO)) == BDRV_BLOCK_DATA) { | |
1984 | printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", | |
1985 | e->start, e->length, e->offset, e->bs->filename); | |
1986 | } | |
1987 | /* This format ignores the distinction between 0, ZERO and ZERO|DATA. | |
1988 | * Modify the flags here to allow more coalescing. | |
1989 | */ | |
1990 | if (next && | |
1991 | (next->flags & (BDRV_BLOCK_DATA|BDRV_BLOCK_ZERO)) != BDRV_BLOCK_DATA) { | |
1992 | next->flags &= ~BDRV_BLOCK_DATA; | |
1993 | next->flags |= BDRV_BLOCK_ZERO; | |
1994 | } | |
1995 | break; | |
1996 | case OFORMAT_JSON: | |
1997 | printf("%s{ \"start\": %"PRId64", \"length\": %"PRId64", \"depth\": %d," | |
1998 | " \"zero\": %s, \"data\": %s", | |
1999 | (e->start == 0 ? "[" : ",\n"), | |
2000 | e->start, e->length, e->depth, | |
2001 | (e->flags & BDRV_BLOCK_ZERO) ? "true" : "false", | |
2002 | (e->flags & BDRV_BLOCK_DATA) ? "true" : "false"); | |
2003 | if (e->flags & BDRV_BLOCK_OFFSET_VALID) { | |
c745bfb4 | 2004 | printf(", \"offset\": %"PRId64"", e->offset); |
4c93a13b PB |
2005 | } |
2006 | putchar('}'); | |
2007 | ||
2008 | if (!next) { | |
2009 | printf("]\n"); | |
2010 | } | |
2011 | break; | |
2012 | } | |
2013 | } | |
2014 | ||
2015 | static int get_block_status(BlockDriverState *bs, int64_t sector_num, | |
2016 | int nb_sectors, MapEntry *e) | |
2017 | { | |
2018 | int64_t ret; | |
2019 | int depth; | |
2020 | ||
2021 | /* As an optimization, we could cache the current range of unallocated | |
2022 | * clusters in each file of the chain, and avoid querying the same | |
2023 | * range repeatedly. | |
2024 | */ | |
2025 | ||
2026 | depth = 0; | |
2027 | for (;;) { | |
2028 | ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &nb_sectors); | |
2029 | if (ret < 0) { | |
2030 | return ret; | |
2031 | } | |
2032 | assert(nb_sectors); | |
2033 | if (ret & (BDRV_BLOCK_ZERO|BDRV_BLOCK_DATA)) { | |
2034 | break; | |
2035 | } | |
2036 | bs = bs->backing_hd; | |
2037 | if (bs == NULL) { | |
2038 | ret = 0; | |
2039 | break; | |
2040 | } | |
2041 | ||
2042 | depth++; | |
2043 | } | |
2044 | ||
2045 | e->start = sector_num * BDRV_SECTOR_SIZE; | |
2046 | e->length = nb_sectors * BDRV_SECTOR_SIZE; | |
2047 | e->flags = ret & ~BDRV_BLOCK_OFFSET_MASK; | |
2048 | e->offset = ret & BDRV_BLOCK_OFFSET_MASK; | |
2049 | e->depth = depth; | |
2050 | e->bs = bs; | |
2051 | return 0; | |
2052 | } | |
2053 | ||
2054 | static int img_map(int argc, char **argv) | |
2055 | { | |
2056 | int c; | |
2057 | OutputFormat output_format = OFORMAT_HUMAN; | |
2058 | BlockDriverState *bs; | |
2059 | const char *filename, *fmt, *output; | |
2060 | int64_t length; | |
2061 | MapEntry curr = { .length = 0 }, next; | |
2062 | int ret = 0; | |
2063 | ||
2064 | fmt = NULL; | |
2065 | output = NULL; | |
2066 | for (;;) { | |
2067 | int option_index = 0; | |
2068 | static const struct option long_options[] = { | |
2069 | {"help", no_argument, 0, 'h'}, | |
2070 | {"format", required_argument, 0, 'f'}, | |
2071 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
2072 | {0, 0, 0, 0} | |
2073 | }; | |
2074 | c = getopt_long(argc, argv, "f:h", | |
2075 | long_options, &option_index); | |
2076 | if (c == -1) { | |
2077 | break; | |
2078 | } | |
2079 | switch (c) { | |
2080 | case '?': | |
2081 | case 'h': | |
2082 | help(); | |
2083 | break; | |
2084 | case 'f': | |
2085 | fmt = optarg; | |
2086 | break; | |
2087 | case OPTION_OUTPUT: | |
2088 | output = optarg; | |
2089 | break; | |
2090 | } | |
2091 | } | |
ac1307ab FZ |
2092 | if (optind != argc - 1) { |
2093 | error_exit("Expecting one image file name"); | |
4c93a13b | 2094 | } |
ac1307ab | 2095 | filename = argv[optind]; |
4c93a13b PB |
2096 | |
2097 | if (output && !strcmp(output, "json")) { | |
2098 | output_format = OFORMAT_JSON; | |
2099 | } else if (output && !strcmp(output, "human")) { | |
2100 | output_format = OFORMAT_HUMAN; | |
2101 | } else if (output) { | |
2102 | error_report("--output must be used with human or json as argument."); | |
2103 | return 1; | |
2104 | } | |
2105 | ||
9ffe3332 | 2106 | bs = bdrv_new_open("image", filename, fmt, BDRV_O_FLAGS, true, false); |
4c93a13b PB |
2107 | if (!bs) { |
2108 | return 1; | |
2109 | } | |
2110 | ||
2111 | if (output_format == OFORMAT_HUMAN) { | |
2112 | printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File"); | |
2113 | } | |
2114 | ||
2115 | length = bdrv_getlength(bs); | |
2116 | while (curr.start + curr.length < length) { | |
2117 | int64_t nsectors_left; | |
2118 | int64_t sector_num; | |
2119 | int n; | |
2120 | ||
2121 | sector_num = (curr.start + curr.length) >> BDRV_SECTOR_BITS; | |
2122 | ||
2123 | /* Probe up to 1 GiB at a time. */ | |
2124 | nsectors_left = DIV_ROUND_UP(length, BDRV_SECTOR_SIZE) - sector_num; | |
2125 | n = MIN(1 << (30 - BDRV_SECTOR_BITS), nsectors_left); | |
2126 | ret = get_block_status(bs, sector_num, n, &next); | |
2127 | ||
2128 | if (ret < 0) { | |
2129 | error_report("Could not read file metadata: %s", strerror(-ret)); | |
2130 | goto out; | |
2131 | } | |
2132 | ||
2133 | if (curr.length != 0 && curr.flags == next.flags && | |
2134 | curr.depth == next.depth && | |
2135 | ((curr.flags & BDRV_BLOCK_OFFSET_VALID) == 0 || | |
2136 | curr.offset + curr.length == next.offset)) { | |
2137 | curr.length += next.length; | |
2138 | continue; | |
2139 | } | |
2140 | ||
2141 | if (curr.length > 0) { | |
2142 | dump_map_entry(output_format, &curr, &next); | |
2143 | } | |
2144 | curr = next; | |
2145 | } | |
2146 | ||
2147 | dump_map_entry(output_format, &curr, NULL); | |
2148 | ||
2149 | out: | |
2150 | bdrv_unref(bs); | |
2151 | return ret < 0; | |
2152 | } | |
2153 | ||
f7b4a940 AL |
2154 | #define SNAPSHOT_LIST 1 |
2155 | #define SNAPSHOT_CREATE 2 | |
2156 | #define SNAPSHOT_APPLY 3 | |
2157 | #define SNAPSHOT_DELETE 4 | |
2158 | ||
153859be | 2159 | static int img_snapshot(int argc, char **argv) |
f7b4a940 AL |
2160 | { |
2161 | BlockDriverState *bs; | |
2162 | QEMUSnapshotInfo sn; | |
2163 | char *filename, *snapshot_name = NULL; | |
c2abccec | 2164 | int c, ret = 0, bdrv_oflags; |
f7b4a940 AL |
2165 | int action = 0; |
2166 | qemu_timeval tv; | |
f382d43a | 2167 | bool quiet = false; |
a89d89d3 | 2168 | Error *err = NULL; |
f7b4a940 | 2169 | |
710da702 | 2170 | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
f7b4a940 AL |
2171 | /* Parse commandline parameters */ |
2172 | for(;;) { | |
f382d43a | 2173 | c = getopt(argc, argv, "la:c:d:hq"); |
b8fb60da | 2174 | if (c == -1) { |
f7b4a940 | 2175 | break; |
b8fb60da | 2176 | } |
f7b4a940 | 2177 | switch(c) { |
ef87394c | 2178 | case '?': |
f7b4a940 AL |
2179 | case 'h': |
2180 | help(); | |
153859be | 2181 | return 0; |
f7b4a940 AL |
2182 | case 'l': |
2183 | if (action) { | |
ac1307ab | 2184 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2185 | return 0; |
f7b4a940 AL |
2186 | } |
2187 | action = SNAPSHOT_LIST; | |
f5edb014 | 2188 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
f7b4a940 AL |
2189 | break; |
2190 | case 'a': | |
2191 | if (action) { | |
ac1307ab | 2192 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2193 | return 0; |
f7b4a940 AL |
2194 | } |
2195 | action = SNAPSHOT_APPLY; | |
2196 | snapshot_name = optarg; | |
2197 | break; | |
2198 | case 'c': | |
2199 | if (action) { | |
ac1307ab | 2200 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2201 | return 0; |
f7b4a940 AL |
2202 | } |
2203 | action = SNAPSHOT_CREATE; | |
2204 | snapshot_name = optarg; | |
2205 | break; | |
2206 | case 'd': | |
2207 | if (action) { | |
ac1307ab | 2208 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2209 | return 0; |
f7b4a940 AL |
2210 | } |
2211 | action = SNAPSHOT_DELETE; | |
2212 | snapshot_name = optarg; | |
2213 | break; | |
f382d43a MR |
2214 | case 'q': |
2215 | quiet = true; | |
2216 | break; | |
f7b4a940 AL |
2217 | } |
2218 | } | |
2219 | ||
fc11eb26 | 2220 | if (optind != argc - 1) { |
ac1307ab | 2221 | error_exit("Expecting one image file name"); |
b8fb60da | 2222 | } |
f7b4a940 AL |
2223 | filename = argv[optind++]; |
2224 | ||
2225 | /* Open the image */ | |
9ffe3332 | 2226 | bs = bdrv_new_open("image", filename, NULL, bdrv_oflags, true, quiet); |
c2abccec MK |
2227 | if (!bs) { |
2228 | return 1; | |
2229 | } | |
f7b4a940 AL |
2230 | |
2231 | /* Perform the requested action */ | |
2232 | switch(action) { | |
2233 | case SNAPSHOT_LIST: | |
2234 | dump_snapshots(bs); | |
2235 | break; | |
2236 | ||
2237 | case SNAPSHOT_CREATE: | |
2238 | memset(&sn, 0, sizeof(sn)); | |
2239 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); | |
2240 | ||
2241 | qemu_gettimeofday(&tv); | |
2242 | sn.date_sec = tv.tv_sec; | |
2243 | sn.date_nsec = tv.tv_usec * 1000; | |
2244 | ||
2245 | ret = bdrv_snapshot_create(bs, &sn); | |
b8fb60da | 2246 | if (ret) { |
15654a6d | 2247 | error_report("Could not create snapshot '%s': %d (%s)", |
f7b4a940 | 2248 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 2249 | } |
f7b4a940 AL |
2250 | break; |
2251 | ||
2252 | case SNAPSHOT_APPLY: | |
2253 | ret = bdrv_snapshot_goto(bs, snapshot_name); | |
b8fb60da | 2254 | if (ret) { |
15654a6d | 2255 | error_report("Could not apply snapshot '%s': %d (%s)", |
f7b4a940 | 2256 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 2257 | } |
f7b4a940 AL |
2258 | break; |
2259 | ||
2260 | case SNAPSHOT_DELETE: | |
a89d89d3 | 2261 | bdrv_snapshot_delete_by_id_or_name(bs, snapshot_name, &err); |
84d18f06 | 2262 | if (err) { |
a89d89d3 WX |
2263 | error_report("Could not delete snapshot '%s': (%s)", |
2264 | snapshot_name, error_get_pretty(err)); | |
2265 | error_free(err); | |
2266 | ret = 1; | |
b8fb60da | 2267 | } |
f7b4a940 AL |
2268 | break; |
2269 | } | |
2270 | ||
2271 | /* Cleanup */ | |
4f6fd349 | 2272 | bdrv_unref(bs); |
c2abccec MK |
2273 | if (ret) { |
2274 | return 1; | |
2275 | } | |
153859be | 2276 | return 0; |
f7b4a940 AL |
2277 | } |
2278 | ||
3e85c6fd KW |
2279 | static int img_rebase(int argc, char **argv) |
2280 | { | |
c2abccec | 2281 | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
f163d073 | 2282 | BlockDriver *old_backing_drv, *new_backing_drv; |
3e85c6fd | 2283 | char *filename; |
661a0f71 | 2284 | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
3e85c6fd KW |
2285 | int c, flags, ret; |
2286 | int unsafe = 0; | |
6b837bc4 | 2287 | int progress = 0; |
f382d43a | 2288 | bool quiet = false; |
34b5d2c6 | 2289 | Error *local_err = NULL; |
3e85c6fd KW |
2290 | |
2291 | /* Parse commandline parameters */ | |
e53dbee0 | 2292 | fmt = NULL; |
661a0f71 | 2293 | cache = BDRV_DEFAULT_CACHE; |
3e85c6fd KW |
2294 | out_baseimg = NULL; |
2295 | out_basefmt = NULL; | |
3e85c6fd | 2296 | for(;;) { |
f382d43a | 2297 | c = getopt(argc, argv, "uhf:F:b:pt:q"); |
b8fb60da | 2298 | if (c == -1) { |
3e85c6fd | 2299 | break; |
b8fb60da | 2300 | } |
3e85c6fd | 2301 | switch(c) { |
ef87394c | 2302 | case '?': |
3e85c6fd KW |
2303 | case 'h': |
2304 | help(); | |
2305 | return 0; | |
e53dbee0 KW |
2306 | case 'f': |
2307 | fmt = optarg; | |
2308 | break; | |
3e85c6fd KW |
2309 | case 'F': |
2310 | out_basefmt = optarg; | |
2311 | break; | |
2312 | case 'b': | |
2313 | out_baseimg = optarg; | |
2314 | break; | |
2315 | case 'u': | |
2316 | unsafe = 1; | |
2317 | break; | |
6b837bc4 JS |
2318 | case 'p': |
2319 | progress = 1; | |
2320 | break; | |
661a0f71 FS |
2321 | case 't': |
2322 | cache = optarg; | |
2323 | break; | |
f382d43a MR |
2324 | case 'q': |
2325 | quiet = true; | |
2326 | break; | |
3e85c6fd KW |
2327 | } |
2328 | } | |
2329 | ||
f382d43a MR |
2330 | if (quiet) { |
2331 | progress = 0; | |
2332 | } | |
2333 | ||
ac1307ab FZ |
2334 | if (optind != argc - 1) { |
2335 | error_exit("Expecting one image file name"); | |
2336 | } | |
2337 | if (!unsafe && !out_baseimg) { | |
2338 | error_exit("Must specify backing file (-b) or use unsafe mode (-u)"); | |
b8fb60da | 2339 | } |
3e85c6fd KW |
2340 | filename = argv[optind++]; |
2341 | ||
6b837bc4 JS |
2342 | qemu_progress_init(progress, 2.0); |
2343 | qemu_progress_print(0, 100); | |
2344 | ||
661a0f71 | 2345 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
c3993cdc | 2346 | ret = bdrv_parse_cache_flags(cache, &flags); |
661a0f71 FS |
2347 | if (ret < 0) { |
2348 | error_report("Invalid cache option: %s", cache); | |
2349 | return -1; | |
2350 | } | |
2351 | ||
3e85c6fd KW |
2352 | /* |
2353 | * Open the images. | |
2354 | * | |
2355 | * Ignore the old backing file for unsafe rebase in case we want to correct | |
2356 | * the reference to a renamed or moved backing file. | |
2357 | */ | |
9ffe3332 | 2358 | bs = bdrv_new_open("image", filename, fmt, flags, true, quiet); |
c2abccec MK |
2359 | if (!bs) { |
2360 | return 1; | |
2361 | } | |
3e85c6fd KW |
2362 | |
2363 | /* Find the right drivers for the backing files */ | |
2364 | old_backing_drv = NULL; | |
2365 | new_backing_drv = NULL; | |
2366 | ||
2367 | if (!unsafe && bs->backing_format[0] != '\0') { | |
2368 | old_backing_drv = bdrv_find_format(bs->backing_format); | |
2369 | if (old_backing_drv == NULL) { | |
15654a6d | 2370 | error_report("Invalid format name: '%s'", bs->backing_format); |
c2abccec MK |
2371 | ret = -1; |
2372 | goto out; | |
3e85c6fd KW |
2373 | } |
2374 | } | |
2375 | ||
2376 | if (out_basefmt != NULL) { | |
2377 | new_backing_drv = bdrv_find_format(out_basefmt); | |
2378 | if (new_backing_drv == NULL) { | |
15654a6d | 2379 | error_report("Invalid format name: '%s'", out_basefmt); |
c2abccec MK |
2380 | ret = -1; |
2381 | goto out; | |
3e85c6fd KW |
2382 | } |
2383 | } | |
2384 | ||
2385 | /* For safe rebasing we need to compare old and new backing file */ | |
2386 | if (unsafe) { | |
2387 | /* Make the compiler happy */ | |
2388 | bs_old_backing = NULL; | |
2389 | bs_new_backing = NULL; | |
2390 | } else { | |
2391 | char backing_name[1024]; | |
2392 | ||
98522f63 | 2393 | bs_old_backing = bdrv_new("old_backing", &error_abort); |
3e85c6fd | 2394 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
ddf5636d | 2395 | ret = bdrv_open(&bs_old_backing, backing_name, NULL, NULL, BDRV_O_FLAGS, |
34b5d2c6 | 2396 | old_backing_drv, &local_err); |
c2abccec | 2397 | if (ret) { |
34b5d2c6 HR |
2398 | error_report("Could not open old backing file '%s': %s", |
2399 | backing_name, error_get_pretty(local_err)); | |
2400 | error_free(local_err); | |
c2abccec | 2401 | goto out; |
3e85c6fd | 2402 | } |
a616673d | 2403 | if (out_baseimg[0]) { |
98522f63 | 2404 | bs_new_backing = bdrv_new("new_backing", &error_abort); |
ddf5636d HR |
2405 | ret = bdrv_open(&bs_new_backing, out_baseimg, NULL, NULL, |
2406 | BDRV_O_FLAGS, new_backing_drv, &local_err); | |
a616673d | 2407 | if (ret) { |
34b5d2c6 HR |
2408 | error_report("Could not open new backing file '%s': %s", |
2409 | out_baseimg, error_get_pretty(local_err)); | |
2410 | error_free(local_err); | |
a616673d AB |
2411 | goto out; |
2412 | } | |
3e85c6fd KW |
2413 | } |
2414 | } | |
2415 | ||
2416 | /* | |
2417 | * Check each unallocated cluster in the COW file. If it is unallocated, | |
2418 | * accesses go to the backing file. We must therefore compare this cluster | |
2419 | * in the old and new backing file, and if they differ we need to copy it | |
2420 | * from the old backing file into the COW file. | |
2421 | * | |
2422 | * If qemu-img crashes during this step, no harm is done. The content of | |
2423 | * the image is the same as the original one at any time. | |
2424 | */ | |
2425 | if (!unsafe) { | |
2426 | uint64_t num_sectors; | |
87a1b3e3 | 2427 | uint64_t old_backing_num_sectors; |
a616673d | 2428 | uint64_t new_backing_num_sectors = 0; |
3e85c6fd | 2429 | uint64_t sector; |
cc60e327 | 2430 | int n; |
d6771bfa T |
2431 | uint8_t * buf_old; |
2432 | uint8_t * buf_new; | |
1f710495 | 2433 | float local_progress = 0; |
d6771bfa | 2434 | |
bb1c0597 KW |
2435 | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
2436 | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); | |
3e85c6fd KW |
2437 | |
2438 | bdrv_get_geometry(bs, &num_sectors); | |
87a1b3e3 | 2439 | bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors); |
a616673d AB |
2440 | if (bs_new_backing) { |
2441 | bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors); | |
2442 | } | |
3e85c6fd | 2443 | |
1f710495 KW |
2444 | if (num_sectors != 0) { |
2445 | local_progress = (float)100 / | |
2446 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); | |
2447 | } | |
2448 | ||
3e85c6fd KW |
2449 | for (sector = 0; sector < num_sectors; sector += n) { |
2450 | ||
2451 | /* How many sectors can we handle with the next read? */ | |
2452 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { | |
2453 | n = (IO_BUF_SIZE / 512); | |
2454 | } else { | |
2455 | n = num_sectors - sector; | |
2456 | } | |
2457 | ||
2458 | /* If the cluster is allocated, we don't need to take action */ | |
cc60e327 | 2459 | ret = bdrv_is_allocated(bs, sector, n, &n); |
d663640c PB |
2460 | if (ret < 0) { |
2461 | error_report("error while reading image metadata: %s", | |
2462 | strerror(-ret)); | |
2463 | goto out; | |
2464 | } | |
cc60e327 | 2465 | if (ret) { |
3e85c6fd KW |
2466 | continue; |
2467 | } | |
2468 | ||
87a1b3e3 KW |
2469 | /* |
2470 | * Read old and new backing file and take into consideration that | |
2471 | * backing files may be smaller than the COW image. | |
2472 | */ | |
2473 | if (sector >= old_backing_num_sectors) { | |
2474 | memset(buf_old, 0, n * BDRV_SECTOR_SIZE); | |
2475 | } else { | |
2476 | if (sector + n > old_backing_num_sectors) { | |
2477 | n = old_backing_num_sectors - sector; | |
2478 | } | |
2479 | ||
2480 | ret = bdrv_read(bs_old_backing, sector, buf_old, n); | |
2481 | if (ret < 0) { | |
2482 | error_report("error while reading from old backing file"); | |
2483 | goto out; | |
2484 | } | |
3e85c6fd | 2485 | } |
87a1b3e3 | 2486 | |
a616673d | 2487 | if (sector >= new_backing_num_sectors || !bs_new_backing) { |
87a1b3e3 KW |
2488 | memset(buf_new, 0, n * BDRV_SECTOR_SIZE); |
2489 | } else { | |
2490 | if (sector + n > new_backing_num_sectors) { | |
2491 | n = new_backing_num_sectors - sector; | |
2492 | } | |
2493 | ||
2494 | ret = bdrv_read(bs_new_backing, sector, buf_new, n); | |
2495 | if (ret < 0) { | |
2496 | error_report("error while reading from new backing file"); | |
2497 | goto out; | |
2498 | } | |
3e85c6fd KW |
2499 | } |
2500 | ||
2501 | /* If they differ, we need to write to the COW file */ | |
2502 | uint64_t written = 0; | |
2503 | ||
2504 | while (written < n) { | |
2505 | int pnum; | |
2506 | ||
2507 | if (compare_sectors(buf_old + written * 512, | |
60b1bd4f | 2508 | buf_new + written * 512, n - written, &pnum)) |
3e85c6fd KW |
2509 | { |
2510 | ret = bdrv_write(bs, sector + written, | |
2511 | buf_old + written * 512, pnum); | |
2512 | if (ret < 0) { | |
15654a6d | 2513 | error_report("Error while writing to COW image: %s", |
3e85c6fd | 2514 | strerror(-ret)); |
c2abccec | 2515 | goto out; |
3e85c6fd KW |
2516 | } |
2517 | } | |
2518 | ||
2519 | written += pnum; | |
2520 | } | |
6b837bc4 | 2521 | qemu_progress_print(local_progress, 100); |
3e85c6fd | 2522 | } |
d6771bfa | 2523 | |
bb1c0597 KW |
2524 | qemu_vfree(buf_old); |
2525 | qemu_vfree(buf_new); | |
3e85c6fd KW |
2526 | } |
2527 | ||
2528 | /* | |
2529 | * Change the backing file. All clusters that are different from the old | |
2530 | * backing file are overwritten in the COW file now, so the visible content | |
2531 | * doesn't change when we switch the backing file. | |
2532 | */ | |
a616673d AB |
2533 | if (out_baseimg && *out_baseimg) { |
2534 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); | |
2535 | } else { | |
2536 | ret = bdrv_change_backing_file(bs, NULL, NULL); | |
2537 | } | |
2538 | ||
3e85c6fd | 2539 | if (ret == -ENOSPC) { |
15654a6d JS |
2540 | error_report("Could not change the backing file to '%s': No " |
2541 | "space left in the file header", out_baseimg); | |
3e85c6fd | 2542 | } else if (ret < 0) { |
15654a6d | 2543 | error_report("Could not change the backing file to '%s': %s", |
3e85c6fd KW |
2544 | out_baseimg, strerror(-ret)); |
2545 | } | |
2546 | ||
6b837bc4 | 2547 | qemu_progress_print(100, 0); |
3e85c6fd KW |
2548 | /* |
2549 | * TODO At this point it is possible to check if any clusters that are | |
2550 | * allocated in the COW file are the same in the backing file. If so, they | |
2551 | * could be dropped from the COW file. Don't do this before switching the | |
2552 | * backing file, in case of a crash this would lead to corruption. | |
2553 | */ | |
c2abccec | 2554 | out: |
6b837bc4 | 2555 | qemu_progress_end(); |
3e85c6fd KW |
2556 | /* Cleanup */ |
2557 | if (!unsafe) { | |
eb863add | 2558 | if (bs_old_backing != NULL) { |
4f6fd349 | 2559 | bdrv_unref(bs_old_backing); |
eb863add KW |
2560 | } |
2561 | if (bs_new_backing != NULL) { | |
4f6fd349 | 2562 | bdrv_unref(bs_new_backing); |
eb863add | 2563 | } |
3e85c6fd KW |
2564 | } |
2565 | ||
4f6fd349 | 2566 | bdrv_unref(bs); |
c2abccec MK |
2567 | if (ret) { |
2568 | return 1; | |
2569 | } | |
3e85c6fd KW |
2570 | return 0; |
2571 | } | |
2572 | ||
ae6b0ed6 SH |
2573 | static int img_resize(int argc, char **argv) |
2574 | { | |
2575 | int c, ret, relative; | |
2576 | const char *filename, *fmt, *size; | |
2577 | int64_t n, total_size; | |
f382d43a | 2578 | bool quiet = false; |
2a81998a | 2579 | BlockDriverState *bs = NULL; |
20caf0f7 DXW |
2580 | QemuOpts *param; |
2581 | static QemuOptsList resize_options = { | |
2582 | .name = "resize_options", | |
2583 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), | |
2584 | .desc = { | |
2585 | { | |
2586 | .name = BLOCK_OPT_SIZE, | |
2587 | .type = QEMU_OPT_SIZE, | |
2588 | .help = "Virtual disk size" | |
2589 | }, { | |
2590 | /* end of list */ | |
2591 | } | |
ae6b0ed6 | 2592 | }, |
ae6b0ed6 SH |
2593 | }; |
2594 | ||
e80fec7f KW |
2595 | /* Remove size from argv manually so that negative numbers are not treated |
2596 | * as options by getopt. */ | |
2597 | if (argc < 3) { | |
ac1307ab | 2598 | error_exit("Not enough arguments"); |
e80fec7f KW |
2599 | return 1; |
2600 | } | |
2601 | ||
2602 | size = argv[--argc]; | |
2603 | ||
2604 | /* Parse getopt arguments */ | |
ae6b0ed6 SH |
2605 | fmt = NULL; |
2606 | for(;;) { | |
f382d43a | 2607 | c = getopt(argc, argv, "f:hq"); |
ae6b0ed6 SH |
2608 | if (c == -1) { |
2609 | break; | |
2610 | } | |
2611 | switch(c) { | |
ef87394c | 2612 | case '?': |
ae6b0ed6 SH |
2613 | case 'h': |
2614 | help(); | |
2615 | break; | |
2616 | case 'f': | |
2617 | fmt = optarg; | |
2618 | break; | |
f382d43a MR |
2619 | case 'q': |
2620 | quiet = true; | |
2621 | break; | |
ae6b0ed6 SH |
2622 | } |
2623 | } | |
fc11eb26 | 2624 | if (optind != argc - 1) { |
ac1307ab | 2625 | error_exit("Expecting one image file name"); |
ae6b0ed6 SH |
2626 | } |
2627 | filename = argv[optind++]; | |
ae6b0ed6 SH |
2628 | |
2629 | /* Choose grow, shrink, or absolute resize mode */ | |
2630 | switch (size[0]) { | |
2631 | case '+': | |
2632 | relative = 1; | |
2633 | size++; | |
2634 | break; | |
2635 | case '-': | |
2636 | relative = -1; | |
2637 | size++; | |
2638 | break; | |
2639 | default: | |
2640 | relative = 0; | |
2641 | break; | |
2642 | } | |
2643 | ||
2644 | /* Parse size */ | |
87ea75d5 | 2645 | param = qemu_opts_create(&resize_options, NULL, 0, &error_abort); |
20caf0f7 | 2646 | if (qemu_opt_set(param, BLOCK_OPT_SIZE, size)) { |
ae6b0ed6 | 2647 | /* Error message already printed when size parsing fails */ |
2a81998a | 2648 | ret = -1; |
20caf0f7 | 2649 | qemu_opts_del(param); |
2a81998a | 2650 | goto out; |
ae6b0ed6 | 2651 | } |
20caf0f7 DXW |
2652 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
2653 | qemu_opts_del(param); | |
ae6b0ed6 | 2654 | |
9ffe3332 KW |
2655 | bs = bdrv_new_open("image", filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, |
2656 | true, quiet); | |
c2abccec | 2657 | if (!bs) { |
2a81998a JS |
2658 | ret = -1; |
2659 | goto out; | |
c2abccec | 2660 | } |
ae6b0ed6 SH |
2661 | |
2662 | if (relative) { | |
2663 | total_size = bdrv_getlength(bs) + n * relative; | |
2664 | } else { | |
2665 | total_size = n; | |
2666 | } | |
2667 | if (total_size <= 0) { | |
15654a6d | 2668 | error_report("New image size must be positive"); |
c2abccec MK |
2669 | ret = -1; |
2670 | goto out; | |
ae6b0ed6 SH |
2671 | } |
2672 | ||
2673 | ret = bdrv_truncate(bs, total_size); | |
2674 | switch (ret) { | |
2675 | case 0: | |
f382d43a | 2676 | qprintf(quiet, "Image resized.\n"); |
ae6b0ed6 SH |
2677 | break; |
2678 | case -ENOTSUP: | |
259b2173 | 2679 | error_report("This image does not support resize"); |
ae6b0ed6 SH |
2680 | break; |
2681 | case -EACCES: | |
15654a6d | 2682 | error_report("Image is read-only"); |
ae6b0ed6 SH |
2683 | break; |
2684 | default: | |
15654a6d | 2685 | error_report("Error resizing image (%d)", -ret); |
ae6b0ed6 SH |
2686 | break; |
2687 | } | |
c2abccec | 2688 | out: |
2a81998a | 2689 | if (bs) { |
4f6fd349 | 2690 | bdrv_unref(bs); |
2a81998a | 2691 | } |
c2abccec MK |
2692 | if (ret) { |
2693 | return 1; | |
2694 | } | |
ae6b0ed6 SH |
2695 | return 0; |
2696 | } | |
2697 | ||
6f176b48 HR |
2698 | static int img_amend(int argc, char **argv) |
2699 | { | |
2700 | int c, ret = 0; | |
2701 | char *options = NULL; | |
2702 | QEMUOptionParameter *create_options = NULL, *options_param = NULL; | |
2703 | const char *fmt = NULL, *filename; | |
2704 | bool quiet = false; | |
2705 | BlockDriverState *bs = NULL; | |
2706 | ||
2707 | for (;;) { | |
2708 | c = getopt(argc, argv, "hqf:o:"); | |
2709 | if (c == -1) { | |
2710 | break; | |
2711 | } | |
2712 | ||
2713 | switch (c) { | |
2714 | case 'h': | |
2715 | case '?': | |
2716 | help(); | |
2717 | break; | |
2718 | case 'o': | |
626f84f3 KW |
2719 | if (!is_valid_option_list(optarg)) { |
2720 | error_report("Invalid option list: %s", optarg); | |
2721 | ret = -1; | |
2722 | goto out; | |
2723 | } | |
2724 | if (!options) { | |
2725 | options = g_strdup(optarg); | |
2726 | } else { | |
2727 | char *old_options = options; | |
2728 | options = g_strdup_printf("%s,%s", options, optarg); | |
2729 | g_free(old_options); | |
2730 | } | |
6f176b48 HR |
2731 | break; |
2732 | case 'f': | |
2733 | fmt = optarg; | |
2734 | break; | |
2735 | case 'q': | |
2736 | quiet = true; | |
2737 | break; | |
2738 | } | |
2739 | } | |
2740 | ||
a283cb6e | 2741 | if (!options) { |
ac1307ab | 2742 | error_exit("Must specify options (-o)"); |
6f176b48 HR |
2743 | } |
2744 | ||
a283cb6e KW |
2745 | filename = (optind == argc - 1) ? argv[argc - 1] : NULL; |
2746 | if (fmt && has_help_option(options)) { | |
2747 | /* If a format is explicitly specified (and possibly no filename is | |
2748 | * given), print option help here */ | |
2749 | ret = print_block_option_help(filename, fmt); | |
2750 | goto out; | |
6f176b48 HR |
2751 | } |
2752 | ||
a283cb6e | 2753 | if (optind != argc - 1) { |
ac1307ab | 2754 | error_exit("Expecting one image file name"); |
a283cb6e | 2755 | } |
6f176b48 | 2756 | |
9ffe3332 KW |
2757 | bs = bdrv_new_open("image", filename, fmt, |
2758 | BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet); | |
6f176b48 HR |
2759 | if (!bs) { |
2760 | error_report("Could not open image '%s'", filename); | |
2761 | ret = -1; | |
2762 | goto out; | |
2763 | } | |
2764 | ||
2765 | fmt = bs->drv->format_name; | |
2766 | ||
626f84f3 | 2767 | if (has_help_option(options)) { |
a283cb6e | 2768 | /* If the format was auto-detected, print option help here */ |
6f176b48 HR |
2769 | ret = print_block_option_help(filename, fmt); |
2770 | goto out; | |
2771 | } | |
2772 | ||
2773 | create_options = append_option_parameters(create_options, | |
2774 | bs->drv->create_options); | |
2775 | options_param = parse_option_parameters(options, create_options, | |
2776 | options_param); | |
2777 | if (options_param == NULL) { | |
2778 | error_report("Invalid options for file format '%s'", fmt); | |
2779 | ret = -1; | |
2780 | goto out; | |
2781 | } | |
2782 | ||
2783 | ret = bdrv_amend_options(bs, options_param); | |
2784 | if (ret < 0) { | |
2785 | error_report("Error while amending options: %s", strerror(-ret)); | |
2786 | goto out; | |
2787 | } | |
2788 | ||
2789 | out: | |
2790 | if (bs) { | |
2791 | bdrv_unref(bs); | |
2792 | } | |
2793 | free_option_parameters(create_options); | |
2794 | free_option_parameters(options_param); | |
626f84f3 KW |
2795 | g_free(options); |
2796 | ||
6f176b48 HR |
2797 | if (ret) { |
2798 | return 1; | |
2799 | } | |
2800 | return 0; | |
2801 | } | |
2802 | ||
c227f099 | 2803 | static const img_cmd_t img_cmds[] = { |
153859be SB |
2804 | #define DEF(option, callback, arg_string) \ |
2805 | { option, callback }, | |
2806 | #include "qemu-img-cmds.h" | |
2807 | #undef DEF | |
2808 | #undef GEN_DOCS | |
2809 | { NULL, NULL, }, | |
2810 | }; | |
2811 | ||
ea2384d3 FB |
2812 | int main(int argc, char **argv) |
2813 | { | |
c227f099 | 2814 | const img_cmd_t *cmd; |
153859be | 2815 | const char *cmdname; |
7db1689c | 2816 | int c; |
7db1689c JC |
2817 | static const struct option long_options[] = { |
2818 | {"help", no_argument, 0, 'h'}, | |
5f6979cb | 2819 | {"version", no_argument, 0, 'v'}, |
7db1689c JC |
2820 | {0, 0, 0, 0} |
2821 | }; | |
ea2384d3 | 2822 | |
526eda14 MK |
2823 | #ifdef CONFIG_POSIX |
2824 | signal(SIGPIPE, SIG_IGN); | |
2825 | #endif | |
2826 | ||
53f76e58 | 2827 | error_set_progname(argv[0]); |
10f5bff6 | 2828 | qemu_init_exec_dir(argv[0]); |
53f76e58 | 2829 | |
2592c59a | 2830 | qemu_init_main_loop(); |
ea2384d3 | 2831 | bdrv_init(); |
ac1307ab FZ |
2832 | if (argc < 2) { |
2833 | error_exit("Not enough arguments"); | |
2834 | } | |
153859be | 2835 | cmdname = argv[1]; |
153859be SB |
2836 | |
2837 | /* find the command */ | |
5f6979cb | 2838 | for (cmd = img_cmds; cmd->name != NULL; cmd++) { |
153859be | 2839 | if (!strcmp(cmdname, cmd->name)) { |
7db1689c | 2840 | return cmd->handler(argc - 1, argv + 1); |
153859be | 2841 | } |
ea2384d3 | 2842 | } |
153859be | 2843 | |
5f6979cb | 2844 | c = getopt_long(argc, argv, "h", long_options, NULL); |
7db1689c JC |
2845 | |
2846 | if (c == 'h') { | |
2847 | help(); | |
2848 | } | |
5f6979cb JC |
2849 | if (c == 'v') { |
2850 | printf(QEMU_IMG_VERSION); | |
2851 | return 0; | |
2852 | } | |
7db1689c | 2853 | |
153859be | 2854 | /* not found */ |
ac1307ab | 2855 | error_exit("Command not found: %s", cmdname); |
ea2384d3 | 2856 | } |