]>
Commit | Line | Data |
---|---|---|
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 | */ | |
80c71a24 | 24 | #include "qemu/osdep.h" |
c2a3d7da EB |
25 | #include <getopt.h> |
26 | ||
67a1de0d | 27 | #include "qemu-version.h" |
da34e65c | 28 | #include "qapi/error.h" |
c054b3fd | 29 | #include "qapi-visit.h" |
b3db211f | 30 | #include "qapi/qobject-output-visitor.h" |
cc7a8ea7 | 31 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 32 | #include "qapi/qmp/qjson.h" |
335e9937 | 33 | #include "qapi/qmp/qbool.h" |
f348b6d1 | 34 | #include "qemu/cutils.h" |
3babeb15 | 35 | #include "qemu/config-file.h" |
1de7afc9 PB |
36 | #include "qemu/option.h" |
37 | #include "qemu/error-report.h" | |
06a1e0c1 | 38 | #include "qemu/log.h" |
3babeb15 | 39 | #include "qom/object_interfaces.h" |
9c17d615 | 40 | #include "sysemu/sysemu.h" |
26f54e9a | 41 | #include "sysemu/block-backend.h" |
737e150e | 42 | #include "block/block_int.h" |
d4a3238a | 43 | #include "block/blockjob.h" |
f364ec65 | 44 | #include "block/qapi.h" |
c2297088 | 45 | #include "crypto/init.h" |
06a1e0c1 | 46 | #include "trace/control.h" |
e8445331 | 47 | |
61979a6a | 48 | #define QEMU_IMG_VERSION "qemu-img version " QEMU_VERSION QEMU_PKGVERSION \ |
0781dd6e | 49 | "\n" QEMU_COPYRIGHT "\n" |
5f6979cb | 50 | |
c227f099 | 51 | typedef struct img_cmd_t { |
153859be SB |
52 | const char *name; |
53 | int (*handler)(int argc, char **argv); | |
c227f099 | 54 | } img_cmd_t; |
153859be | 55 | |
8599ea4c FS |
56 | enum { |
57 | OPTION_OUTPUT = 256, | |
58 | OPTION_BACKING_CHAIN = 257, | |
3babeb15 | 59 | OPTION_OBJECT = 258, |
eb769f74 | 60 | OPTION_IMAGE_OPTS = 259, |
b6495fa8 | 61 | OPTION_PATTERN = 260, |
55d539c8 KW |
62 | OPTION_FLUSH_INTERVAL = 261, |
63 | OPTION_NO_DRAIN = 262, | |
305b4c60 | 64 | OPTION_TARGET_IMAGE_OPTS = 263, |
fd03c2b8 | 65 | OPTION_SIZE = 264, |
dc5f690b | 66 | OPTION_PREALLOCATION = 265, |
4ffca890 | 67 | OPTION_SHRINK = 266, |
8599ea4c FS |
68 | }; |
69 | ||
70 | typedef enum OutputFormat { | |
71 | OFORMAT_JSON, | |
72 | OFORMAT_HUMAN, | |
73 | } OutputFormat; | |
74 | ||
e6996143 | 75 | /* Default to cache=writeback as data integrity is not important for qemu-img */ |
661a0f71 | 76 | #define BDRV_DEFAULT_CACHE "writeback" |
137519ce | 77 | |
00c6d403 | 78 | static void format_print(void *opaque, const char *name) |
ea2384d3 | 79 | { |
00c6d403 | 80 | printf(" %s", name); |
ea2384d3 FB |
81 | } |
82 | ||
ac1307ab FZ |
83 | static void QEMU_NORETURN GCC_FMT_ATTR(1, 2) error_exit(const char *fmt, ...) |
84 | { | |
85 | va_list ap; | |
86 | ||
87 | error_printf("qemu-img: "); | |
88 | ||
89 | va_start(ap, fmt); | |
90 | error_vprintf(fmt, ap); | |
91 | va_end(ap); | |
92 | ||
93 | error_printf("\nTry 'qemu-img --help' for more information\n"); | |
94 | exit(EXIT_FAILURE); | |
95 | } | |
96 | ||
c9192973 SH |
97 | static void QEMU_NORETURN missing_argument(const char *option) |
98 | { | |
99 | error_exit("missing argument for option '%s'", option); | |
100 | } | |
101 | ||
102 | static void QEMU_NORETURN unrecognized_option(const char *option) | |
103 | { | |
104 | error_exit("unrecognized option '%s'", option); | |
105 | } | |
106 | ||
d2c639d6 | 107 | /* Please keep in synch with qemu-img.texi */ |
ac1307ab | 108 | static void QEMU_NORETURN help(void) |
ea2384d3 | 109 | { |
e00291c0 | 110 | const char *help_msg = |
5f6979cb | 111 | QEMU_IMG_VERSION |
10985131 | 112 | "usage: qemu-img [standard options] command [command options]\n" |
3f020d70 | 113 | "QEMU disk image utility\n" |
114 | "\n" | |
10985131 DL |
115 | " '-h', '--help' display this help and exit\n" |
116 | " '-V', '--version' output version information and exit\n" | |
06a1e0c1 DL |
117 | " '-T', '--trace' [[enable=]<pattern>][,events=<file>][,file=<file>]\n" |
118 | " specify tracing options\n" | |
10985131 | 119 | "\n" |
3f020d70 | 120 | "Command syntax:\n" |
153859be SB |
121 | #define DEF(option, callback, arg_string) \ |
122 | " " arg_string "\n" | |
123 | #include "qemu-img-cmds.h" | |
124 | #undef DEF | |
125 | #undef GEN_DOCS | |
3f020d70 | 126 | "\n" |
127 | "Command parameters:\n" | |
128 | " 'filename' is a disk image filename\n" | |
3babeb15 DB |
129 | " 'objectdef' is a QEMU user creatable object definition. See the qemu(1)\n" |
130 | " manual page for a description of the object properties. The most common\n" | |
131 | " object type is a 'secret', which is used to supply passwords and/or\n" | |
132 | " encryption keys.\n" | |
3f020d70 | 133 | " 'fmt' is the disk image format. It is guessed automatically in most cases\n" |
661a0f71 | 134 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
80ccf93b LY |
135 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
136 | " 'directsync' and 'unsafe' (default for convert)\n" | |
bb87fdf8 SH |
137 | " 'src_cache' is the cache mode used to read input disk images, the valid\n" |
138 | " options are the same as for the 'cache' option\n" | |
3f020d70 | 139 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
5e00984a KW |
140 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n" |
141 | " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n" | |
142 | " supported. 'b' is ignored.\n" | |
3f020d70 | 143 | " 'output_filename' is the destination disk image filename\n" |
144 | " 'output_fmt' is the destination format\n" | |
145 | " 'options' is a comma separated list of format specific options in a\n" | |
146 | " name=value format. Use -o ? for an overview of the options supported by the\n" | |
147 | " used format\n" | |
ef80654d WX |
148 | " 'snapshot_param' is param used for internal snapshot, format\n" |
149 | " is 'snapshot.id=[ID],snapshot.name=[NAME]', or\n" | |
150 | " '[ID_OR_NAME]'\n" | |
151 | " 'snapshot_id_or_name' is deprecated, use 'snapshot_param'\n" | |
152 | " instead\n" | |
3f020d70 | 153 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
6e6e55f5 JS |
154 | " '-u' allows unsafe backing chains. For rebasing, it is assumed that old and\n" |
155 | " new backing file match exactly. The image doesn't need a working\n" | |
156 | " backing file before rebasing in this case (useful for renaming the\n" | |
157 | " backing file). For image creation, allow creating without attempting\n" | |
158 | " to open the backing file.\n" | |
3f020d70 | 159 | " '-h' with or without a command shows this help and lists the supported formats\n" |
6b837bc4 | 160 | " '-p' show progress of command (only certain commands)\n" |
f382d43a | 161 | " '-q' use Quiet mode - do not print any output (except errors)\n" |
11b6699a PL |
162 | " '-S' indicates the consecutive number of bytes (defaults to 4k) that must\n" |
163 | " contain only zeros for qemu-img to create a sparse image during\n" | |
164 | " conversion. If the number of bytes is 0, the source will not be scanned for\n" | |
165 | " unallocated or zero sectors, and the destination image will always be\n" | |
166 | " fully allocated\n" | |
c054b3fd | 167 | " '--output' takes the format in which the output must be done (human or json)\n" |
b2e10493 AD |
168 | " '-n' skips the target volume creation (useful if the volume is created\n" |
169 | " prior to running qemu-img)\n" | |
3f020d70 | 170 | "\n" |
4534ff54 KW |
171 | "Parameters to check subcommand:\n" |
172 | " '-r' tries to repair any inconsistencies that are found during the check.\n" | |
173 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" | |
174 | " kinds of errors, with a higher risk of choosing the wrong fix or\n" | |
0546b8c2 | 175 | " hiding corruption that has already occurred.\n" |
4534ff54 | 176 | "\n" |
2d9187bc PL |
177 | "Parameters to convert subcommand:\n" |
178 | " '-m' specifies how many coroutines work in parallel during the convert\n" | |
179 | " process (defaults to 8)\n" | |
180 | " '-W' allow to write to the target out of order rather than sequential\n" | |
181 | "\n" | |
3f020d70 | 182 | "Parameters to snapshot subcommand:\n" |
183 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" | |
184 | " '-a' applies a snapshot (revert disk to saved state)\n" | |
185 | " '-c' creates a snapshot\n" | |
186 | " '-d' deletes a snapshot\n" | |
d14ed18c MR |
187 | " '-l' lists all snapshots in the given image\n" |
188 | "\n" | |
189 | "Parameters to compare subcommand:\n" | |
190 | " '-f' first image format\n" | |
191 | " '-F' second image format\n" | |
86ce1f6e RS |
192 | " '-s' run in Strict mode - fail on different image size or sector allocation\n" |
193 | "\n" | |
194 | "Parameters to dd subcommand:\n" | |
195 | " 'bs=BYTES' read and write up to BYTES bytes at a time " | |
196 | "(default: 512)\n" | |
197 | " 'count=N' copy only N input blocks\n" | |
198 | " 'if=FILE' read from FILE\n" | |
f7c15533 RS |
199 | " 'of=FILE' write to FILE\n" |
200 | " 'skip=N' skip N bs-sized blocks at the start of input\n"; | |
e00291c0 PB |
201 | |
202 | printf("%s\nSupported formats:", help_msg); | |
00c6d403 | 203 | bdrv_iterate_format(format_print, NULL); |
f5048cb7 | 204 | printf("\n\n" QEMU_HELP_BOTTOM "\n"); |
ac1307ab | 205 | exit(EXIT_SUCCESS); |
ea2384d3 FB |
206 | } |
207 | ||
3babeb15 DB |
208 | static QemuOptsList qemu_object_opts = { |
209 | .name = "object", | |
210 | .implied_opt_name = "qom-type", | |
211 | .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), | |
212 | .desc = { | |
213 | { } | |
214 | }, | |
215 | }; | |
216 | ||
eb769f74 DB |
217 | static QemuOptsList qemu_source_opts = { |
218 | .name = "source", | |
219 | .implied_opt_name = "file", | |
220 | .head = QTAILQ_HEAD_INITIALIZER(qemu_source_opts.head), | |
221 | .desc = { | |
222 | { } | |
223 | }, | |
224 | }; | |
225 | ||
7c30f657 | 226 | static int GCC_FMT_ATTR(2, 3) qprintf(bool quiet, const char *fmt, ...) |
f382d43a MR |
227 | { |
228 | int ret = 0; | |
229 | if (!quiet) { | |
230 | va_list args; | |
231 | va_start(args, fmt); | |
232 | ret = vprintf(fmt, args); | |
233 | va_end(args); | |
234 | } | |
235 | return ret; | |
236 | } | |
237 | ||
ea2384d3 | 238 | |
4ac8aacd JS |
239 | static int print_block_option_help(const char *filename, const char *fmt) |
240 | { | |
241 | BlockDriver *drv, *proto_drv; | |
83d0521a | 242 | QemuOptsList *create_opts = NULL; |
b65a5e12 | 243 | Error *local_err = NULL; |
4ac8aacd JS |
244 | |
245 | /* Find driver and parse its options */ | |
246 | drv = bdrv_find_format(fmt); | |
247 | if (!drv) { | |
15654a6d | 248 | error_report("Unknown file format '%s'", fmt); |
4ac8aacd JS |
249 | return 1; |
250 | } | |
251 | ||
c282e1fd | 252 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
a283cb6e | 253 | if (filename) { |
b65a5e12 | 254 | proto_drv = bdrv_find_protocol(filename, true, &local_err); |
a283cb6e | 255 | if (!proto_drv) { |
2867ce4a | 256 | error_report_err(local_err); |
83d0521a | 257 | qemu_opts_free(create_opts); |
a283cb6e KW |
258 | return 1; |
259 | } | |
c282e1fd | 260 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); |
a283cb6e KW |
261 | } |
262 | ||
83d0521a CL |
263 | qemu_opts_print_help(create_opts); |
264 | qemu_opts_free(create_opts); | |
4ac8aacd JS |
265 | return 0; |
266 | } | |
267 | ||
eb769f74 | 268 | |
efaa7c4e | 269 | static BlockBackend *img_open_opts(const char *optstr, |
ce099547 | 270 | QemuOpts *opts, int flags, bool writethrough, |
335e9937 | 271 | bool quiet, bool force_share) |
eb769f74 DB |
272 | { |
273 | QDict *options; | |
274 | Error *local_err = NULL; | |
275 | BlockBackend *blk; | |
276 | options = qemu_opts_to_qdict(opts, NULL); | |
335e9937 FZ |
277 | if (force_share) { |
278 | if (qdict_haskey(options, BDRV_OPT_FORCE_SHARE) | |
279 | && !qdict_get_bool(options, BDRV_OPT_FORCE_SHARE)) { | |
280 | error_report("--force-share/-U conflicts with image options"); | |
adb998c1 | 281 | QDECREF(options); |
335e9937 FZ |
282 | return NULL; |
283 | } | |
579cf1d1 | 284 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 285 | } |
efaa7c4e | 286 | blk = blk_new_open(NULL, NULL, options, flags, &local_err); |
eb769f74 | 287 | if (!blk) { |
143605a2 | 288 | error_reportf_err(local_err, "Could not open '%s': ", optstr); |
eb769f74 DB |
289 | return NULL; |
290 | } | |
ce099547 | 291 | blk_set_enable_write_cache(blk, !writethrough); |
eb769f74 | 292 | |
eb769f74 DB |
293 | return blk; |
294 | } | |
295 | ||
efaa7c4e | 296 | static BlockBackend *img_open_file(const char *filename, |
29cf9336 | 297 | QDict *options, |
eb769f74 | 298 | const char *fmt, int flags, |
335e9937 FZ |
299 | bool writethrough, bool quiet, |
300 | bool force_share) | |
eb769f74 DB |
301 | { |
302 | BlockBackend *blk; | |
34b5d2c6 | 303 | Error *local_err = NULL; |
ad717139 | 304 | |
29cf9336 DB |
305 | if (!options) { |
306 | options = qdict_new(); | |
307 | } | |
75c23805 | 308 | if (fmt) { |
46f5ac20 | 309 | qdict_put_str(options, "driver", fmt); |
75c23805 | 310 | } |
b9eaf9ec | 311 | |
335e9937 | 312 | if (force_share) { |
579cf1d1 | 313 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 314 | } |
efaa7c4e | 315 | blk = blk_new_open(filename, NULL, options, flags, &local_err); |
5bd31326 | 316 | if (!blk) { |
c29b77f9 | 317 | error_reportf_err(local_err, "Could not open '%s': ", filename); |
eb769f74 | 318 | return NULL; |
75c23805 | 319 | } |
ce099547 | 320 | blk_set_enable_write_cache(blk, !writethrough); |
b9eaf9ec | 321 | |
eb769f74 DB |
322 | return blk; |
323 | } | |
324 | ||
325 | ||
29cf9336 DB |
326 | static int img_add_key_secrets(void *opaque, |
327 | const char *name, const char *value, | |
328 | Error **errp) | |
329 | { | |
330 | QDict *options = opaque; | |
331 | ||
332 | if (g_str_has_suffix(name, "key-secret")) { | |
187f47e9 | 333 | qdict_put_str(options, name, value); |
29cf9336 DB |
334 | } |
335 | ||
336 | return 0; | |
337 | } | |
338 | ||
339 | static BlockBackend *img_open_new_file(const char *filename, | |
340 | QemuOpts *create_opts, | |
341 | const char *fmt, int flags, | |
342 | bool writethrough, bool quiet, | |
343 | bool force_share) | |
344 | { | |
345 | QDict *options = NULL; | |
346 | ||
347 | options = qdict_new(); | |
348 | qemu_opt_foreach(create_opts, img_add_key_secrets, options, &error_abort); | |
349 | ||
350 | return img_open_file(filename, options, fmt, flags, writethrough, quiet, | |
351 | force_share); | |
352 | } | |
353 | ||
354 | ||
efaa7c4e | 355 | static BlockBackend *img_open(bool image_opts, |
eb769f74 | 356 | const char *filename, |
ce099547 | 357 | const char *fmt, int flags, bool writethrough, |
335e9937 | 358 | bool quiet, bool force_share) |
eb769f74 DB |
359 | { |
360 | BlockBackend *blk; | |
361 | if (image_opts) { | |
362 | QemuOpts *opts; | |
363 | if (fmt) { | |
364 | error_report("--image-opts and --format are mutually exclusive"); | |
365 | return NULL; | |
366 | } | |
367 | opts = qemu_opts_parse_noisily(qemu_find_opts("source"), | |
368 | filename, true); | |
369 | if (!opts) { | |
370 | return NULL; | |
371 | } | |
335e9937 FZ |
372 | blk = img_open_opts(filename, opts, flags, writethrough, quiet, |
373 | force_share); | |
eb769f74 | 374 | } else { |
29cf9336 | 375 | blk = img_open_file(filename, NULL, fmt, flags, writethrough, quiet, |
335e9937 | 376 | force_share); |
75c23805 | 377 | } |
7e7d56d9 | 378 | return blk; |
75c23805 FB |
379 | } |
380 | ||
eb769f74 | 381 | |
83d0521a | 382 | static int add_old_style_options(const char *fmt, QemuOpts *opts, |
eec77d9e JS |
383 | const char *base_filename, |
384 | const char *base_fmt) | |
efa84d43 | 385 | { |
6750e795 MA |
386 | Error *err = NULL; |
387 | ||
efa84d43 | 388 | if (base_filename) { |
f43e47db | 389 | qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename, &err); |
6750e795 | 390 | if (err) { |
15654a6d JS |
391 | error_report("Backing file not supported for file format '%s'", |
392 | fmt); | |
6750e795 | 393 | error_free(err); |
c2abccec | 394 | return -1; |
efa84d43 KW |
395 | } |
396 | } | |
397 | if (base_fmt) { | |
f43e47db | 398 | qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, &err); |
6750e795 | 399 | if (err) { |
15654a6d JS |
400 | error_report("Backing file format not supported for file " |
401 | "format '%s'", fmt); | |
6750e795 | 402 | error_free(err); |
c2abccec | 403 | return -1; |
efa84d43 KW |
404 | } |
405 | } | |
c2abccec | 406 | return 0; |
efa84d43 KW |
407 | } |
408 | ||
606caa0a MA |
409 | static int64_t cvtnum(const char *s) |
410 | { | |
f17fd4fd | 411 | int err; |
f46bfdbf | 412 | uint64_t value; |
606caa0a | 413 | |
f17fd4fd MA |
414 | err = qemu_strtosz(s, NULL, &value); |
415 | if (err < 0) { | |
416 | return err; | |
417 | } | |
f46bfdbf MA |
418 | if (value > INT64_MAX) { |
419 | return -ERANGE; | |
420 | } | |
f17fd4fd | 421 | return value; |
606caa0a MA |
422 | } |
423 | ||
ea2384d3 FB |
424 | static int img_create(int argc, char **argv) |
425 | { | |
a9300911 | 426 | int c; |
1da7cfbd | 427 | uint64_t img_size = -1; |
ea2384d3 | 428 | const char *fmt = "raw"; |
9230eaf6 | 429 | const char *base_fmt = NULL; |
ea2384d3 FB |
430 | const char *filename; |
431 | const char *base_filename = NULL; | |
9ea2ea71 | 432 | char *options = NULL; |
9b37525a | 433 | Error *local_err = NULL; |
f382d43a | 434 | bool quiet = false; |
6e6e55f5 | 435 | int flags = 0; |
3b46e624 | 436 | |
ea2384d3 | 437 | for(;;) { |
3babeb15 DB |
438 | static const struct option long_options[] = { |
439 | {"help", no_argument, 0, 'h'}, | |
440 | {"object", required_argument, 0, OPTION_OBJECT}, | |
441 | {0, 0, 0, 0} | |
442 | }; | |
6e6e55f5 | 443 | c = getopt_long(argc, argv, ":F:b:f:ho:qu", |
3babeb15 | 444 | long_options, NULL); |
b8fb60da | 445 | if (c == -1) { |
ea2384d3 | 446 | break; |
b8fb60da | 447 | } |
ea2384d3 | 448 | switch(c) { |
c9192973 SH |
449 | case ':': |
450 | missing_argument(argv[optind - 1]); | |
451 | break; | |
ef87394c | 452 | case '?': |
c9192973 SH |
453 | unrecognized_option(argv[optind - 1]); |
454 | break; | |
ea2384d3 FB |
455 | case 'h': |
456 | help(); | |
457 | break; | |
9230eaf6 AL |
458 | case 'F': |
459 | base_fmt = optarg; | |
460 | break; | |
ea2384d3 FB |
461 | case 'b': |
462 | base_filename = optarg; | |
463 | break; | |
464 | case 'f': | |
465 | fmt = optarg; | |
466 | break; | |
9ea2ea71 | 467 | case 'o': |
77386bf6 KW |
468 | if (!is_valid_option_list(optarg)) { |
469 | error_report("Invalid option list: %s", optarg); | |
470 | goto fail; | |
471 | } | |
472 | if (!options) { | |
473 | options = g_strdup(optarg); | |
474 | } else { | |
475 | char *old_options = options; | |
476 | options = g_strdup_printf("%s,%s", options, optarg); | |
477 | g_free(old_options); | |
478 | } | |
9ea2ea71 | 479 | break; |
f382d43a MR |
480 | case 'q': |
481 | quiet = true; | |
482 | break; | |
6e6e55f5 JS |
483 | case 'u': |
484 | flags |= BDRV_O_NO_BACKING; | |
485 | break; | |
3babeb15 DB |
486 | case OPTION_OBJECT: { |
487 | QemuOpts *opts; | |
488 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
489 | optarg, true); | |
490 | if (!opts) { | |
491 | goto fail; | |
492 | } | |
493 | } break; | |
ea2384d3 FB |
494 | } |
495 | } | |
9230eaf6 | 496 | |
b50cbabc | 497 | /* Get the filename */ |
a283cb6e KW |
498 | filename = (optind < argc) ? argv[optind] : NULL; |
499 | if (options && has_help_option(options)) { | |
500 | g_free(options); | |
501 | return print_block_option_help(filename, fmt); | |
502 | } | |
503 | ||
b8fb60da | 504 | if (optind >= argc) { |
ac1307ab | 505 | error_exit("Expecting image file name"); |
b8fb60da | 506 | } |
a283cb6e | 507 | optind++; |
b50cbabc | 508 | |
3babeb15 DB |
509 | if (qemu_opts_foreach(&qemu_object_opts, |
510 | user_creatable_add_opts_foreach, | |
51b9b478 | 511 | NULL, NULL)) { |
3babeb15 DB |
512 | goto fail; |
513 | } | |
514 | ||
1da7cfbd JS |
515 | /* Get image size, if specified */ |
516 | if (optind < argc) { | |
70b4f4bb | 517 | int64_t sval; |
606caa0a MA |
518 | |
519 | sval = cvtnum(argv[optind++]); | |
520 | if (sval < 0) { | |
79443397 LG |
521 | if (sval == -ERANGE) { |
522 | error_report("Image size must be less than 8 EiB!"); | |
523 | } else { | |
524 | error_report("Invalid image size specified! You may use k, M, " | |
5e00984a KW |
525 | "G, T, P or E suffixes for "); |
526 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
527 | "petabytes and exabytes."); | |
79443397 | 528 | } |
77386bf6 | 529 | goto fail; |
1da7cfbd JS |
530 | } |
531 | img_size = (uint64_t)sval; | |
532 | } | |
fc11eb26 | 533 | if (optind != argc) { |
ac1307ab | 534 | error_exit("Unexpected argument: %s", argv[optind]); |
fc11eb26 | 535 | } |
1da7cfbd | 536 | |
9b37525a | 537 | bdrv_img_create(filename, fmt, base_filename, base_fmt, |
6e6e55f5 | 538 | options, img_size, flags, quiet, &local_err); |
84d18f06 | 539 | if (local_err) { |
c29b77f9 | 540 | error_reportf_err(local_err, "%s: ", filename); |
77386bf6 | 541 | goto fail; |
c2abccec | 542 | } |
a9300911 | 543 | |
77386bf6 | 544 | g_free(options); |
ea2384d3 | 545 | return 0; |
77386bf6 KW |
546 | |
547 | fail: | |
548 | g_free(options); | |
549 | return 1; | |
ea2384d3 FB |
550 | } |
551 | ||
f382d43a | 552 | static void dump_json_image_check(ImageCheck *check, bool quiet) |
8599ea4c | 553 | { |
8599ea4c | 554 | QString *str; |
8599ea4c | 555 | QObject *obj; |
7d5e199a | 556 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
557 | |
558 | visit_type_ImageCheck(v, NULL, &check, &error_abort); | |
559 | visit_complete(v, &obj); | |
8599ea4c FS |
560 | str = qobject_to_json_pretty(obj); |
561 | assert(str != NULL); | |
f382d43a | 562 | qprintf(quiet, "%s\n", qstring_get_str(str)); |
8599ea4c | 563 | qobject_decref(obj); |
3b098d56 | 564 | visit_free(v); |
8599ea4c FS |
565 | QDECREF(str); |
566 | } | |
567 | ||
f382d43a | 568 | static void dump_human_image_check(ImageCheck *check, bool quiet) |
8599ea4c FS |
569 | { |
570 | if (!(check->corruptions || check->leaks || check->check_errors)) { | |
f382d43a | 571 | qprintf(quiet, "No errors were found on the image.\n"); |
8599ea4c FS |
572 | } else { |
573 | if (check->corruptions) { | |
f382d43a MR |
574 | qprintf(quiet, "\n%" PRId64 " errors were found on the image.\n" |
575 | "Data may be corrupted, or further writes to the image " | |
576 | "may corrupt it.\n", | |
577 | check->corruptions); | |
8599ea4c FS |
578 | } |
579 | ||
580 | if (check->leaks) { | |
f382d43a MR |
581 | qprintf(quiet, |
582 | "\n%" PRId64 " leaked clusters were found on the image.\n" | |
583 | "This means waste of disk space, but no harm to data.\n", | |
584 | check->leaks); | |
8599ea4c FS |
585 | } |
586 | ||
587 | if (check->check_errors) { | |
f382d43a MR |
588 | qprintf(quiet, |
589 | "\n%" PRId64 | |
590 | " internal errors have occurred during the check.\n", | |
591 | check->check_errors); | |
8599ea4c FS |
592 | } |
593 | } | |
594 | ||
595 | if (check->total_clusters != 0 && check->allocated_clusters != 0) { | |
f382d43a MR |
596 | qprintf(quiet, "%" PRId64 "/%" PRId64 " = %0.2f%% allocated, " |
597 | "%0.2f%% fragmented, %0.2f%% compressed clusters\n", | |
598 | check->allocated_clusters, check->total_clusters, | |
599 | check->allocated_clusters * 100.0 / check->total_clusters, | |
600 | check->fragmented_clusters * 100.0 / check->allocated_clusters, | |
601 | check->compressed_clusters * 100.0 / | |
602 | check->allocated_clusters); | |
8599ea4c FS |
603 | } |
604 | ||
605 | if (check->image_end_offset) { | |
f382d43a MR |
606 | qprintf(quiet, |
607 | "Image end offset: %" PRId64 "\n", check->image_end_offset); | |
8599ea4c FS |
608 | } |
609 | } | |
610 | ||
611 | static int collect_image_check(BlockDriverState *bs, | |
612 | ImageCheck *check, | |
613 | const char *filename, | |
614 | const char *fmt, | |
615 | int fix) | |
616 | { | |
617 | int ret; | |
618 | BdrvCheckResult result; | |
619 | ||
620 | ret = bdrv_check(bs, &result, fix); | |
621 | if (ret < 0) { | |
622 | return ret; | |
623 | } | |
624 | ||
625 | check->filename = g_strdup(filename); | |
626 | check->format = g_strdup(bdrv_get_format_name(bs)); | |
627 | check->check_errors = result.check_errors; | |
628 | check->corruptions = result.corruptions; | |
629 | check->has_corruptions = result.corruptions != 0; | |
630 | check->leaks = result.leaks; | |
631 | check->has_leaks = result.leaks != 0; | |
632 | check->corruptions_fixed = result.corruptions_fixed; | |
633 | check->has_corruptions_fixed = result.corruptions != 0; | |
634 | check->leaks_fixed = result.leaks_fixed; | |
635 | check->has_leaks_fixed = result.leaks != 0; | |
636 | check->image_end_offset = result.image_end_offset; | |
637 | check->has_image_end_offset = result.image_end_offset != 0; | |
638 | check->total_clusters = result.bfi.total_clusters; | |
639 | check->has_total_clusters = result.bfi.total_clusters != 0; | |
640 | check->allocated_clusters = result.bfi.allocated_clusters; | |
641 | check->has_allocated_clusters = result.bfi.allocated_clusters != 0; | |
642 | check->fragmented_clusters = result.bfi.fragmented_clusters; | |
643 | check->has_fragmented_clusters = result.bfi.fragmented_clusters != 0; | |
e6439d78 SH |
644 | check->compressed_clusters = result.bfi.compressed_clusters; |
645 | check->has_compressed_clusters = result.bfi.compressed_clusters != 0; | |
8599ea4c FS |
646 | |
647 | return 0; | |
648 | } | |
649 | ||
e076f338 KW |
650 | /* |
651 | * Checks an image for consistency. Exit codes: | |
652 | * | |
d6635c4d HR |
653 | * 0 - Check completed, image is good |
654 | * 1 - Check not completed because of internal errors | |
655 | * 2 - Check completed, image is corrupted | |
656 | * 3 - Check completed, image has leaked clusters, but is good otherwise | |
657 | * 63 - Checks are not supported by the image format | |
e076f338 | 658 | */ |
1585969c AL |
659 | static int img_check(int argc, char **argv) |
660 | { | |
661 | int c, ret; | |
8599ea4c | 662 | OutputFormat output_format = OFORMAT_HUMAN; |
40055951 | 663 | const char *filename, *fmt, *output, *cache; |
26f54e9a | 664 | BlockBackend *blk; |
1585969c | 665 | BlockDriverState *bs; |
4534ff54 | 666 | int fix = 0; |
ce099547 KW |
667 | int flags = BDRV_O_CHECK; |
668 | bool writethrough; | |
7e7d56d9 | 669 | ImageCheck *check; |
f382d43a | 670 | bool quiet = false; |
eb769f74 | 671 | bool image_opts = false; |
335e9937 | 672 | bool force_share = false; |
1585969c AL |
673 | |
674 | fmt = NULL; | |
8599ea4c | 675 | output = NULL; |
40055951 | 676 | cache = BDRV_DEFAULT_CACHE; |
ce099547 | 677 | |
1585969c | 678 | for(;;) { |
8599ea4c FS |
679 | int option_index = 0; |
680 | static const struct option long_options[] = { | |
681 | {"help", no_argument, 0, 'h'}, | |
682 | {"format", required_argument, 0, 'f'}, | |
4fd6a984 | 683 | {"repair", required_argument, 0, 'r'}, |
8599ea4c | 684 | {"output", required_argument, 0, OPTION_OUTPUT}, |
3babeb15 | 685 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 686 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 687 | {"force-share", no_argument, 0, 'U'}, |
8599ea4c FS |
688 | {0, 0, 0, 0} |
689 | }; | |
335e9937 | 690 | c = getopt_long(argc, argv, ":hf:r:T:qU", |
8599ea4c | 691 | long_options, &option_index); |
b8fb60da | 692 | if (c == -1) { |
1585969c | 693 | break; |
b8fb60da | 694 | } |
1585969c | 695 | switch(c) { |
c9192973 SH |
696 | case ':': |
697 | missing_argument(argv[optind - 1]); | |
698 | break; | |
ef87394c | 699 | case '?': |
c9192973 SH |
700 | unrecognized_option(argv[optind - 1]); |
701 | break; | |
1585969c AL |
702 | case 'h': |
703 | help(); | |
704 | break; | |
705 | case 'f': | |
706 | fmt = optarg; | |
707 | break; | |
4534ff54 KW |
708 | case 'r': |
709 | flags |= BDRV_O_RDWR; | |
710 | ||
711 | if (!strcmp(optarg, "leaks")) { | |
712 | fix = BDRV_FIX_LEAKS; | |
713 | } else if (!strcmp(optarg, "all")) { | |
714 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; | |
715 | } else { | |
ac1307ab FZ |
716 | error_exit("Unknown option value for -r " |
717 | "(expecting 'leaks' or 'all'): %s", optarg); | |
4534ff54 KW |
718 | } |
719 | break; | |
8599ea4c FS |
720 | case OPTION_OUTPUT: |
721 | output = optarg; | |
722 | break; | |
40055951 HR |
723 | case 'T': |
724 | cache = optarg; | |
725 | break; | |
f382d43a MR |
726 | case 'q': |
727 | quiet = true; | |
728 | break; | |
335e9937 FZ |
729 | case 'U': |
730 | force_share = true; | |
731 | break; | |
3babeb15 DB |
732 | case OPTION_OBJECT: { |
733 | QemuOpts *opts; | |
734 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
735 | optarg, true); | |
736 | if (!opts) { | |
737 | return 1; | |
738 | } | |
739 | } break; | |
eb769f74 DB |
740 | case OPTION_IMAGE_OPTS: |
741 | image_opts = true; | |
742 | break; | |
1585969c AL |
743 | } |
744 | } | |
fc11eb26 | 745 | if (optind != argc - 1) { |
ac1307ab | 746 | error_exit("Expecting one image file name"); |
b8fb60da | 747 | } |
1585969c AL |
748 | filename = argv[optind++]; |
749 | ||
8599ea4c FS |
750 | if (output && !strcmp(output, "json")) { |
751 | output_format = OFORMAT_JSON; | |
752 | } else if (output && !strcmp(output, "human")) { | |
753 | output_format = OFORMAT_HUMAN; | |
754 | } else if (output) { | |
755 | error_report("--output must be used with human or json as argument."); | |
756 | return 1; | |
757 | } | |
758 | ||
3babeb15 DB |
759 | if (qemu_opts_foreach(&qemu_object_opts, |
760 | user_creatable_add_opts_foreach, | |
51b9b478 | 761 | NULL, NULL)) { |
3babeb15 DB |
762 | return 1; |
763 | } | |
764 | ||
ce099547 | 765 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
40055951 HR |
766 | if (ret < 0) { |
767 | error_report("Invalid source cache option: %s", cache); | |
768 | return 1; | |
769 | } | |
770 | ||
335e9937 FZ |
771 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
772 | force_share); | |
7e7d56d9 MA |
773 | if (!blk) { |
774 | return 1; | |
c2abccec | 775 | } |
7e7d56d9 | 776 | bs = blk_bs(blk); |
8599ea4c FS |
777 | |
778 | check = g_new0(ImageCheck, 1); | |
779 | ret = collect_image_check(bs, check, filename, fmt, fix); | |
e076f338 KW |
780 | |
781 | if (ret == -ENOTSUP) { | |
55d492d7 | 782 | error_report("This image format does not support checks"); |
fefddf95 | 783 | ret = 63; |
8599ea4c | 784 | goto fail; |
e076f338 KW |
785 | } |
786 | ||
8599ea4c FS |
787 | if (check->corruptions_fixed || check->leaks_fixed) { |
788 | int corruptions_fixed, leaks_fixed; | |
ccf34716 | 789 | |
8599ea4c FS |
790 | leaks_fixed = check->leaks_fixed; |
791 | corruptions_fixed = check->corruptions_fixed; | |
e076f338 | 792 | |
8599ea4c | 793 | if (output_format == OFORMAT_HUMAN) { |
f382d43a MR |
794 | qprintf(quiet, |
795 | "The following inconsistencies were found and repaired:\n\n" | |
796 | " %" PRId64 " leaked clusters\n" | |
797 | " %" PRId64 " corruptions\n\n" | |
798 | "Double checking the fixed image now...\n", | |
799 | check->leaks_fixed, | |
800 | check->corruptions_fixed); | |
e076f338 KW |
801 | } |
802 | ||
8599ea4c | 803 | ret = collect_image_check(bs, check, filename, fmt, 0); |
1585969c | 804 | |
8599ea4c FS |
805 | check->leaks_fixed = leaks_fixed; |
806 | check->corruptions_fixed = corruptions_fixed; | |
f8111c24 DXW |
807 | } |
808 | ||
832390a5 HR |
809 | if (!ret) { |
810 | switch (output_format) { | |
811 | case OFORMAT_HUMAN: | |
812 | dump_human_image_check(check, quiet); | |
813 | break; | |
814 | case OFORMAT_JSON: | |
815 | dump_json_image_check(check, quiet); | |
816 | break; | |
817 | } | |
c6bb9ad1 FS |
818 | } |
819 | ||
8599ea4c | 820 | if (ret || check->check_errors) { |
832390a5 HR |
821 | if (ret) { |
822 | error_report("Check failed: %s", strerror(-ret)); | |
823 | } else { | |
824 | error_report("Check failed"); | |
825 | } | |
8599ea4c FS |
826 | ret = 1; |
827 | goto fail; | |
c2abccec | 828 | } |
e076f338 | 829 | |
8599ea4c FS |
830 | if (check->corruptions) { |
831 | ret = 2; | |
832 | } else if (check->leaks) { | |
833 | ret = 3; | |
e076f338 | 834 | } else { |
8599ea4c | 835 | ret = 0; |
e076f338 | 836 | } |
8599ea4c FS |
837 | |
838 | fail: | |
839 | qapi_free_ImageCheck(check); | |
26f54e9a | 840 | blk_unref(blk); |
8599ea4c | 841 | return ret; |
1585969c AL |
842 | } |
843 | ||
d4a3238a HR |
844 | typedef struct CommonBlockJobCBInfo { |
845 | BlockDriverState *bs; | |
846 | Error **errp; | |
847 | } CommonBlockJobCBInfo; | |
848 | ||
849 | static void common_block_job_cb(void *opaque, int ret) | |
850 | { | |
851 | CommonBlockJobCBInfo *cbi = opaque; | |
852 | ||
853 | if (ret < 0) { | |
854 | error_setg_errno(cbi->errp, -ret, "Block job failed"); | |
855 | } | |
d4a3238a HR |
856 | } |
857 | ||
858 | static void run_block_job(BlockJob *job, Error **errp) | |
859 | { | |
b75536c9 | 860 | AioContext *aio_context = blk_get_aio_context(job->blk); |
4172a003 | 861 | int ret = 0; |
d4a3238a | 862 | |
9e944cb4 | 863 | aio_context_acquire(aio_context); |
4172a003 | 864 | block_job_ref(job); |
d4a3238a HR |
865 | do { |
866 | aio_poll(aio_context, true); | |
62547b8a JS |
867 | qemu_progress_print(job->len ? |
868 | ((float)job->offset / job->len * 100.f) : 0.0f, 0); | |
4172a003 | 869 | } while (!job->ready && !job->completed); |
d4a3238a | 870 | |
4172a003 SJ |
871 | if (!job->completed) { |
872 | ret = block_job_complete_sync(job, errp); | |
873 | } else { | |
874 | ret = job->ret; | |
875 | } | |
876 | block_job_unref(job); | |
9e944cb4 | 877 | aio_context_release(aio_context); |
687fa1d8 | 878 | |
4172a003 SJ |
879 | /* publish completion progress only when success */ |
880 | if (!ret) { | |
881 | qemu_progress_print(100.f, 0); | |
882 | } | |
d4a3238a HR |
883 | } |
884 | ||
ea2384d3 FB |
885 | static int img_commit(int argc, char **argv) |
886 | { | |
661a0f71 | 887 | int c, ret, flags; |
1b22bffd | 888 | const char *filename, *fmt, *cache, *base; |
26f54e9a | 889 | BlockBackend *blk; |
d4a3238a | 890 | BlockDriverState *bs, *base_bs; |
4ef85a9c | 891 | BlockJob *job; |
687fa1d8 | 892 | bool progress = false, quiet = false, drop = false; |
ce099547 | 893 | bool writethrough; |
d4a3238a HR |
894 | Error *local_err = NULL; |
895 | CommonBlockJobCBInfo cbi; | |
eb769f74 | 896 | bool image_opts = false; |
9e944cb4 | 897 | AioContext *aio_context; |
ea2384d3 FB |
898 | |
899 | fmt = NULL; | |
661a0f71 | 900 | cache = BDRV_DEFAULT_CACHE; |
1b22bffd | 901 | base = NULL; |
ea2384d3 | 902 | for(;;) { |
3babeb15 DB |
903 | static const struct option long_options[] = { |
904 | {"help", no_argument, 0, 'h'}, | |
905 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 906 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
3babeb15 DB |
907 | {0, 0, 0, 0} |
908 | }; | |
c9192973 | 909 | c = getopt_long(argc, argv, ":f:ht:b:dpq", |
3babeb15 | 910 | long_options, NULL); |
b8fb60da | 911 | if (c == -1) { |
ea2384d3 | 912 | break; |
b8fb60da | 913 | } |
ea2384d3 | 914 | switch(c) { |
c9192973 SH |
915 | case ':': |
916 | missing_argument(argv[optind - 1]); | |
917 | break; | |
ef87394c | 918 | case '?': |
c9192973 SH |
919 | unrecognized_option(argv[optind - 1]); |
920 | break; | |
ea2384d3 FB |
921 | case 'h': |
922 | help(); | |
923 | break; | |
924 | case 'f': | |
925 | fmt = optarg; | |
926 | break; | |
661a0f71 FS |
927 | case 't': |
928 | cache = optarg; | |
929 | break; | |
1b22bffd HR |
930 | case 'b': |
931 | base = optarg; | |
932 | /* -b implies -d */ | |
933 | drop = true; | |
934 | break; | |
9a86fe48 HR |
935 | case 'd': |
936 | drop = true; | |
937 | break; | |
687fa1d8 HR |
938 | case 'p': |
939 | progress = true; | |
940 | break; | |
f382d43a MR |
941 | case 'q': |
942 | quiet = true; | |
943 | break; | |
3babeb15 DB |
944 | case OPTION_OBJECT: { |
945 | QemuOpts *opts; | |
946 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
947 | optarg, true); | |
948 | if (!opts) { | |
949 | return 1; | |
950 | } | |
951 | } break; | |
eb769f74 DB |
952 | case OPTION_IMAGE_OPTS: |
953 | image_opts = true; | |
954 | break; | |
ea2384d3 FB |
955 | } |
956 | } | |
687fa1d8 HR |
957 | |
958 | /* Progress is not shown in Quiet mode */ | |
959 | if (quiet) { | |
960 | progress = false; | |
961 | } | |
962 | ||
fc11eb26 | 963 | if (optind != argc - 1) { |
ac1307ab | 964 | error_exit("Expecting one image file name"); |
b8fb60da | 965 | } |
ea2384d3 FB |
966 | filename = argv[optind++]; |
967 | ||
3babeb15 DB |
968 | if (qemu_opts_foreach(&qemu_object_opts, |
969 | user_creatable_add_opts_foreach, | |
51b9b478 | 970 | NULL, NULL)) { |
3babeb15 DB |
971 | return 1; |
972 | } | |
973 | ||
9a86fe48 | 974 | flags = BDRV_O_RDWR | BDRV_O_UNMAP; |
ce099547 | 975 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
976 | if (ret < 0) { |
977 | error_report("Invalid cache option: %s", cache); | |
a3981eb9 | 978 | return 1; |
661a0f71 FS |
979 | } |
980 | ||
335e9937 FZ |
981 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
982 | false); | |
7e7d56d9 MA |
983 | if (!blk) { |
984 | return 1; | |
c2abccec | 985 | } |
7e7d56d9 MA |
986 | bs = blk_bs(blk); |
987 | ||
687fa1d8 HR |
988 | qemu_progress_init(progress, 1.f); |
989 | qemu_progress_print(0.f, 100); | |
990 | ||
1b22bffd HR |
991 | if (base) { |
992 | base_bs = bdrv_find_backing_image(bs, base); | |
993 | if (!base_bs) { | |
6b33f3ae HR |
994 | error_setg(&local_err, |
995 | "Did not find '%s' in the backing chain of '%s'", | |
996 | base, filename); | |
1b22bffd HR |
997 | goto done; |
998 | } | |
999 | } else { | |
1000 | /* This is different from QMP, which by default uses the deepest file in | |
1001 | * the backing chain (i.e., the very base); however, the traditional | |
1002 | * behavior of qemu-img commit is using the immediate backing file. */ | |
760e0063 | 1003 | base_bs = backing_bs(bs); |
1b22bffd HR |
1004 | if (!base_bs) { |
1005 | error_setg(&local_err, "Image does not have a backing file"); | |
1006 | goto done; | |
1007 | } | |
d4a3238a HR |
1008 | } |
1009 | ||
1010 | cbi = (CommonBlockJobCBInfo){ | |
1011 | .errp = &local_err, | |
1012 | .bs = bs, | |
1013 | }; | |
1014 | ||
9e944cb4 PB |
1015 | aio_context = bdrv_get_aio_context(bs); |
1016 | aio_context_acquire(aio_context); | |
47970dfb | 1017 | commit_active_start("commit", bs, base_bs, BLOCK_JOB_DEFAULT, 0, |
0db832f4 | 1018 | BLOCKDEV_ON_ERROR_REPORT, NULL, common_block_job_cb, |
78bbd910 | 1019 | &cbi, false, &local_err); |
9e944cb4 | 1020 | aio_context_release(aio_context); |
d4a3238a HR |
1021 | if (local_err) { |
1022 | goto done; | |
ea2384d3 FB |
1023 | } |
1024 | ||
3f09bfbc KW |
1025 | /* When the block job completes, the BlockBackend reference will point to |
1026 | * the old backing file. In order to avoid that the top image is already | |
1027 | * deleted, so we can still empty it afterwards, increment the reference | |
1028 | * counter here preemptively. */ | |
9a86fe48 | 1029 | if (!drop) { |
3f09bfbc | 1030 | bdrv_ref(bs); |
9a86fe48 HR |
1031 | } |
1032 | ||
4ef85a9c KW |
1033 | job = block_job_get("commit"); |
1034 | run_block_job(job, &local_err); | |
9a86fe48 HR |
1035 | if (local_err) { |
1036 | goto unref_backing; | |
1037 | } | |
1038 | ||
3f09bfbc KW |
1039 | if (!drop && bs->drv->bdrv_make_empty) { |
1040 | ret = bs->drv->bdrv_make_empty(bs); | |
9a86fe48 HR |
1041 | if (ret) { |
1042 | error_setg_errno(&local_err, -ret, "Could not empty %s", | |
1043 | filename); | |
1044 | goto unref_backing; | |
1045 | } | |
1046 | } | |
1047 | ||
1048 | unref_backing: | |
1049 | if (!drop) { | |
3f09bfbc | 1050 | bdrv_unref(bs); |
9a86fe48 | 1051 | } |
d4a3238a HR |
1052 | |
1053 | done: | |
687fa1d8 HR |
1054 | qemu_progress_end(); |
1055 | ||
26f54e9a | 1056 | blk_unref(blk); |
d4a3238a HR |
1057 | |
1058 | if (local_err) { | |
6936f299 | 1059 | error_report_err(local_err); |
c2abccec MK |
1060 | return 1; |
1061 | } | |
d4a3238a HR |
1062 | |
1063 | qprintf(quiet, "Image committed.\n"); | |
ea2384d3 FB |
1064 | return 0; |
1065 | } | |
1066 | ||
debb38a4 EB |
1067 | /* |
1068 | * Returns -1 if 'buf' contains only zeroes, otherwise the byte index | |
1069 | * of the first sector boundary within buf where the sector contains a | |
1070 | * non-zero byte. This function is robust to a buffer that is not | |
1071 | * sector-aligned. | |
1072 | */ | |
1073 | static int64_t find_nonzero(const uint8_t *buf, int64_t n) | |
1074 | { | |
1075 | int64_t i; | |
1076 | int64_t end = QEMU_ALIGN_DOWN(n, BDRV_SECTOR_SIZE); | |
1077 | ||
1078 | for (i = 0; i < end; i += BDRV_SECTOR_SIZE) { | |
1079 | if (!buffer_is_zero(buf + i, BDRV_SECTOR_SIZE)) { | |
1080 | return i; | |
1081 | } | |
1082 | } | |
1083 | if (i < n && !buffer_is_zero(buf + i, n - end)) { | |
1084 | return i; | |
1085 | } | |
1086 | return -1; | |
1087 | } | |
1088 | ||
f58c7b35 TS |
1089 | /* |
1090 | * Returns true iff the first sector pointed to by 'buf' contains at least | |
1091 | * a non-NUL byte. | |
1092 | * | |
1093 | * 'pnum' is set to the number of sectors (including and immediately following | |
1094 | * the first one) that are known to be in the same allocated/unallocated state. | |
1095 | */ | |
ea2384d3 FB |
1096 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
1097 | { | |
1a6d39fd SH |
1098 | bool is_zero; |
1099 | int i; | |
ea2384d3 FB |
1100 | |
1101 | if (n <= 0) { | |
1102 | *pnum = 0; | |
1103 | return 0; | |
1104 | } | |
1a6d39fd | 1105 | is_zero = buffer_is_zero(buf, 512); |
ea2384d3 FB |
1106 | for(i = 1; i < n; i++) { |
1107 | buf += 512; | |
1a6d39fd | 1108 | if (is_zero != buffer_is_zero(buf, 512)) { |
ea2384d3 | 1109 | break; |
1a6d39fd | 1110 | } |
ea2384d3 FB |
1111 | } |
1112 | *pnum = i; | |
1a6d39fd | 1113 | return !is_zero; |
ea2384d3 FB |
1114 | } |
1115 | ||
a22f123c KW |
1116 | /* |
1117 | * Like is_allocated_sectors, but if the buffer starts with a used sector, | |
1118 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids | |
1119 | * breaking up write requests for only small sparse areas. | |
1120 | */ | |
1121 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, | |
1122 | int min) | |
1123 | { | |
1124 | int ret; | |
1125 | int num_checked, num_used; | |
1126 | ||
1127 | if (n < min) { | |
1128 | min = n; | |
1129 | } | |
1130 | ||
1131 | ret = is_allocated_sectors(buf, n, pnum); | |
1132 | if (!ret) { | |
1133 | return ret; | |
1134 | } | |
1135 | ||
1136 | num_used = *pnum; | |
1137 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1138 | n -= *pnum; | |
1139 | num_checked = num_used; | |
1140 | ||
1141 | while (n > 0) { | |
1142 | ret = is_allocated_sectors(buf, n, pnum); | |
1143 | ||
1144 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1145 | n -= *pnum; | |
1146 | num_checked += *pnum; | |
1147 | if (ret) { | |
1148 | num_used = num_checked; | |
1149 | } else if (*pnum >= min) { | |
1150 | break; | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | *pnum = num_used; | |
1155 | return 1; | |
1156 | } | |
1157 | ||
3e85c6fd | 1158 | /* |
dc61cd3b EB |
1159 | * Compares two buffers sector by sector. Returns 0 if the first |
1160 | * sector of each buffer matches, non-zero otherwise. | |
3e85c6fd | 1161 | * |
dc61cd3b EB |
1162 | * pnum is set to the sector-aligned size of the buffer prefix that |
1163 | * has the same matching status as the first sector. | |
3e85c6fd | 1164 | */ |
dc61cd3b EB |
1165 | static int compare_buffers(const uint8_t *buf1, const uint8_t *buf2, |
1166 | int64_t bytes, int64_t *pnum) | |
3e85c6fd | 1167 | { |
8c1ac475 | 1168 | bool res; |
dc61cd3b | 1169 | int64_t i = MIN(bytes, BDRV_SECTOR_SIZE); |
3e85c6fd | 1170 | |
dc61cd3b | 1171 | assert(bytes > 0); |
3e85c6fd | 1172 | |
dc61cd3b EB |
1173 | res = !!memcmp(buf1, buf2, i); |
1174 | while (i < bytes) { | |
1175 | int64_t len = MIN(bytes - i, BDRV_SECTOR_SIZE); | |
3e85c6fd | 1176 | |
dc61cd3b | 1177 | if (!!memcmp(buf1 + i, buf2 + i, len) != res) { |
3e85c6fd KW |
1178 | break; |
1179 | } | |
dc61cd3b | 1180 | i += len; |
3e85c6fd KW |
1181 | } |
1182 | ||
1183 | *pnum = i; | |
1184 | return res; | |
1185 | } | |
1186 | ||
80ee15a6 | 1187 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
ea2384d3 | 1188 | |
d14ed18c MR |
1189 | static int64_t sectors_to_bytes(int64_t sectors) |
1190 | { | |
1191 | return sectors << BDRV_SECTOR_BITS; | |
1192 | } | |
1193 | ||
d14ed18c MR |
1194 | /* |
1195 | * Check if passed sectors are empty (not allocated or contain only 0 bytes) | |
1196 | * | |
0608e40e EB |
1197 | * Intended for use by 'qemu-img compare': Returns 0 in case sectors are |
1198 | * filled with 0, 1 if sectors contain non-zero data (this is a comparison | |
1199 | * failure), and 4 on error (the exit status for read errors), after emitting | |
1200 | * an error message. | |
d14ed18c | 1201 | * |
f1d3cd79 | 1202 | * @param blk: BlockBackend for the image |
c41508ed EB |
1203 | * @param offset: Starting offset to check |
1204 | * @param bytes: Number of bytes to check | |
d14ed18c MR |
1205 | * @param filename: Name of disk file we are checking (logging purpose) |
1206 | * @param buffer: Allocated buffer for storing read data | |
1207 | * @param quiet: Flag for quiet mode | |
1208 | */ | |
c41508ed EB |
1209 | static int check_empty_sectors(BlockBackend *blk, int64_t offset, |
1210 | int64_t bytes, const char *filename, | |
d14ed18c MR |
1211 | uint8_t *buffer, bool quiet) |
1212 | { | |
debb38a4 EB |
1213 | int ret = 0; |
1214 | int64_t idx; | |
1215 | ||
c41508ed | 1216 | ret = blk_pread(blk, offset, buffer, bytes); |
d14ed18c MR |
1217 | if (ret < 0) { |
1218 | error_report("Error while reading offset %" PRId64 " of %s: %s", | |
c41508ed | 1219 | offset, filename, strerror(-ret)); |
0608e40e | 1220 | return 4; |
d14ed18c | 1221 | } |
c41508ed | 1222 | idx = find_nonzero(buffer, bytes); |
debb38a4 | 1223 | if (idx >= 0) { |
d14ed18c | 1224 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
c41508ed | 1225 | offset + idx); |
d14ed18c MR |
1226 | return 1; |
1227 | } | |
1228 | ||
1229 | return 0; | |
1230 | } | |
1231 | ||
1232 | /* | |
1233 | * Compares two images. Exit codes: | |
1234 | * | |
1235 | * 0 - Images are identical | |
1236 | * 1 - Images differ | |
1237 | * >1 - Error occurred | |
1238 | */ | |
1239 | static int img_compare(int argc, char **argv) | |
1240 | { | |
40055951 | 1241 | const char *fmt1 = NULL, *fmt2 = NULL, *cache, *filename1, *filename2; |
26f54e9a | 1242 | BlockBackend *blk1, *blk2; |
d14ed18c MR |
1243 | BlockDriverState *bs1, *bs2; |
1244 | int64_t total_sectors1, total_sectors2; | |
1245 | uint8_t *buf1 = NULL, *buf2 = NULL; | |
31826642 | 1246 | int64_t pnum1, pnum2; |
d14ed18c MR |
1247 | int allocated1, allocated2; |
1248 | int ret = 0; /* return value - 0 Ident, 1 Different, >1 Error */ | |
1249 | bool progress = false, quiet = false, strict = false; | |
40055951 | 1250 | int flags; |
ce099547 | 1251 | bool writethrough; |
d14ed18c MR |
1252 | int64_t total_sectors; |
1253 | int64_t sector_num = 0; | |
1254 | int64_t nb_sectors; | |
dc61cd3b | 1255 | int c; |
d14ed18c | 1256 | uint64_t progress_base; |
eb769f74 | 1257 | bool image_opts = false; |
335e9937 | 1258 | bool force_share = false; |
d14ed18c | 1259 | |
40055951 | 1260 | cache = BDRV_DEFAULT_CACHE; |
d14ed18c | 1261 | for (;;) { |
3babeb15 DB |
1262 | static const struct option long_options[] = { |
1263 | {"help", no_argument, 0, 'h'}, | |
1264 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 1265 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 1266 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
1267 | {0, 0, 0, 0} |
1268 | }; | |
335e9937 | 1269 | c = getopt_long(argc, argv, ":hf:F:T:pqsU", |
3babeb15 | 1270 | long_options, NULL); |
d14ed18c MR |
1271 | if (c == -1) { |
1272 | break; | |
1273 | } | |
1274 | switch (c) { | |
c9192973 SH |
1275 | case ':': |
1276 | missing_argument(argv[optind - 1]); | |
1277 | break; | |
d14ed18c | 1278 | case '?': |
c9192973 SH |
1279 | unrecognized_option(argv[optind - 1]); |
1280 | break; | |
d14ed18c MR |
1281 | case 'h': |
1282 | help(); | |
1283 | break; | |
1284 | case 'f': | |
1285 | fmt1 = optarg; | |
1286 | break; | |
1287 | case 'F': | |
1288 | fmt2 = optarg; | |
1289 | break; | |
40055951 HR |
1290 | case 'T': |
1291 | cache = optarg; | |
1292 | break; | |
d14ed18c MR |
1293 | case 'p': |
1294 | progress = true; | |
1295 | break; | |
1296 | case 'q': | |
1297 | quiet = true; | |
1298 | break; | |
1299 | case 's': | |
1300 | strict = true; | |
1301 | break; | |
335e9937 FZ |
1302 | case 'U': |
1303 | force_share = true; | |
1304 | break; | |
3babeb15 DB |
1305 | case OPTION_OBJECT: { |
1306 | QemuOpts *opts; | |
1307 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
1308 | optarg, true); | |
1309 | if (!opts) { | |
1310 | ret = 2; | |
1311 | goto out4; | |
1312 | } | |
1313 | } break; | |
eb769f74 DB |
1314 | case OPTION_IMAGE_OPTS: |
1315 | image_opts = true; | |
1316 | break; | |
d14ed18c MR |
1317 | } |
1318 | } | |
1319 | ||
1320 | /* Progress is not shown in Quiet mode */ | |
1321 | if (quiet) { | |
1322 | progress = false; | |
1323 | } | |
1324 | ||
1325 | ||
fc11eb26 | 1326 | if (optind != argc - 2) { |
ac1307ab | 1327 | error_exit("Expecting two image file names"); |
d14ed18c MR |
1328 | } |
1329 | filename1 = argv[optind++]; | |
1330 | filename2 = argv[optind++]; | |
1331 | ||
3babeb15 DB |
1332 | if (qemu_opts_foreach(&qemu_object_opts, |
1333 | user_creatable_add_opts_foreach, | |
51b9b478 | 1334 | NULL, NULL)) { |
3babeb15 DB |
1335 | ret = 2; |
1336 | goto out4; | |
1337 | } | |
1338 | ||
cbda016d SH |
1339 | /* Initialize before goto out */ |
1340 | qemu_progress_init(progress, 2.0); | |
1341 | ||
ce099547 KW |
1342 | flags = 0; |
1343 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
40055951 HR |
1344 | if (ret < 0) { |
1345 | error_report("Invalid source cache option: %s", cache); | |
1346 | ret = 2; | |
1347 | goto out3; | |
1348 | } | |
1349 | ||
335e9937 FZ |
1350 | blk1 = img_open(image_opts, filename1, fmt1, flags, writethrough, quiet, |
1351 | force_share); | |
7e7d56d9 | 1352 | if (!blk1) { |
d14ed18c | 1353 | ret = 2; |
7e7d56d9 | 1354 | goto out3; |
d14ed18c MR |
1355 | } |
1356 | ||
335e9937 FZ |
1357 | blk2 = img_open(image_opts, filename2, fmt2, flags, writethrough, quiet, |
1358 | force_share); | |
7e7d56d9 | 1359 | if (!blk2) { |
d14ed18c | 1360 | ret = 2; |
7e7d56d9 | 1361 | goto out2; |
d14ed18c | 1362 | } |
eb769f74 | 1363 | bs1 = blk_bs(blk1); |
7e7d56d9 | 1364 | bs2 = blk_bs(blk2); |
d14ed18c | 1365 | |
f1d3cd79 HR |
1366 | buf1 = blk_blockalign(blk1, IO_BUF_SIZE); |
1367 | buf2 = blk_blockalign(blk2, IO_BUF_SIZE); | |
1368 | total_sectors1 = blk_nb_sectors(blk1); | |
52bf1e72 MA |
1369 | if (total_sectors1 < 0) { |
1370 | error_report("Can't get size of %s: %s", | |
1371 | filename1, strerror(-total_sectors1)); | |
1372 | ret = 4; | |
1373 | goto out; | |
1374 | } | |
f1d3cd79 | 1375 | total_sectors2 = blk_nb_sectors(blk2); |
52bf1e72 MA |
1376 | if (total_sectors2 < 0) { |
1377 | error_report("Can't get size of %s: %s", | |
1378 | filename2, strerror(-total_sectors2)); | |
1379 | ret = 4; | |
1380 | goto out; | |
1381 | } | |
d14ed18c MR |
1382 | total_sectors = MIN(total_sectors1, total_sectors2); |
1383 | progress_base = MAX(total_sectors1, total_sectors2); | |
1384 | ||
1385 | qemu_progress_print(0, 100); | |
1386 | ||
1387 | if (strict && total_sectors1 != total_sectors2) { | |
1388 | ret = 1; | |
1389 | qprintf(quiet, "Strict mode: Image size mismatch!\n"); | |
1390 | goto out; | |
1391 | } | |
1392 | ||
7daddc61 | 1393 | while (sector_num < total_sectors) { |
31826642 | 1394 | int status1, status2; |
67a0fd2a | 1395 | |
31826642 EB |
1396 | status1 = bdrv_block_status_above(bs1, NULL, |
1397 | sector_num * BDRV_SECTOR_SIZE, | |
1398 | (total_sectors1 - sector_num) * | |
1399 | BDRV_SECTOR_SIZE, | |
1400 | &pnum1, NULL, NULL); | |
25ad8e6e | 1401 | if (status1 < 0) { |
d14ed18c MR |
1402 | ret = 3; |
1403 | error_report("Sector allocation test failed for %s", filename1); | |
1404 | goto out; | |
1405 | } | |
25ad8e6e | 1406 | allocated1 = status1 & BDRV_BLOCK_ALLOCATED; |
d14ed18c | 1407 | |
31826642 EB |
1408 | status2 = bdrv_block_status_above(bs2, NULL, |
1409 | sector_num * BDRV_SECTOR_SIZE, | |
1410 | (total_sectors2 - sector_num) * | |
1411 | BDRV_SECTOR_SIZE, | |
1412 | &pnum2, NULL, NULL); | |
25ad8e6e | 1413 | if (status2 < 0) { |
d14ed18c MR |
1414 | ret = 3; |
1415 | error_report("Sector allocation test failed for %s", filename2); | |
1416 | goto out; | |
1417 | } | |
25ad8e6e | 1418 | allocated2 = status2 & BDRV_BLOCK_ALLOCATED; |
31826642 EB |
1419 | /* TODO: Relax this once comparison is byte-based, and we no longer |
1420 | * have to worry about sector alignment */ | |
1421 | assert(QEMU_IS_ALIGNED(pnum1 | pnum2, BDRV_SECTOR_SIZE)); | |
7daddc61 EB |
1422 | |
1423 | assert(pnum1 && pnum2); | |
1424 | nb_sectors = MIN(pnum1, pnum2) >> BDRV_SECTOR_BITS; | |
d14ed18c | 1425 | |
25ad8e6e | 1426 | if (strict) { |
31826642 | 1427 | if (status1 != status2) { |
25ad8e6e FZ |
1428 | ret = 1; |
1429 | qprintf(quiet, "Strict mode: Offset %" PRId64 | |
1430 | " block status mismatch!\n", | |
1431 | sectors_to_bytes(sector_num)); | |
1432 | goto out; | |
1433 | } | |
1434 | } | |
1435 | if ((status1 & BDRV_BLOCK_ZERO) && (status2 & BDRV_BLOCK_ZERO)) { | |
7daddc61 | 1436 | /* nothing to do */ |
25ad8e6e | 1437 | } else if (allocated1 == allocated2) { |
d14ed18c | 1438 | if (allocated1) { |
dc61cd3b EB |
1439 | int64_t pnum; |
1440 | ||
7daddc61 | 1441 | nb_sectors = MIN(nb_sectors, IO_BUF_SIZE >> BDRV_SECTOR_BITS); |
9166920a EB |
1442 | ret = blk_pread(blk1, sector_num << BDRV_SECTOR_BITS, buf1, |
1443 | nb_sectors << BDRV_SECTOR_BITS); | |
d14ed18c MR |
1444 | if (ret < 0) { |
1445 | error_report("Error while reading offset %" PRId64 " of %s:" | |
1446 | " %s", sectors_to_bytes(sector_num), filename1, | |
1447 | strerror(-ret)); | |
1448 | ret = 4; | |
1449 | goto out; | |
1450 | } | |
9166920a EB |
1451 | ret = blk_pread(blk2, sector_num << BDRV_SECTOR_BITS, buf2, |
1452 | nb_sectors << BDRV_SECTOR_BITS); | |
d14ed18c MR |
1453 | if (ret < 0) { |
1454 | error_report("Error while reading offset %" PRId64 | |
1455 | " of %s: %s", sectors_to_bytes(sector_num), | |
1456 | filename2, strerror(-ret)); | |
1457 | ret = 4; | |
1458 | goto out; | |
1459 | } | |
dc61cd3b EB |
1460 | ret = compare_buffers(buf1, buf2, |
1461 | nb_sectors * BDRV_SECTOR_SIZE, &pnum); | |
1462 | if (ret || pnum != nb_sectors * BDRV_SECTOR_SIZE) { | |
d14ed18c | 1463 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
dc61cd3b | 1464 | sectors_to_bytes(sector_num) + (ret ? 0 : pnum)); |
36452f12 | 1465 | ret = 1; |
d14ed18c MR |
1466 | goto out; |
1467 | } | |
1468 | } | |
1469 | } else { | |
7daddc61 | 1470 | nb_sectors = MIN(nb_sectors, IO_BUF_SIZE >> BDRV_SECTOR_BITS); |
d14ed18c | 1471 | if (allocated1) { |
c41508ed EB |
1472 | ret = check_empty_sectors(blk1, sector_num * BDRV_SECTOR_SIZE, |
1473 | nb_sectors * BDRV_SECTOR_SIZE, | |
d14ed18c MR |
1474 | filename1, buf1, quiet); |
1475 | } else { | |
c41508ed EB |
1476 | ret = check_empty_sectors(blk2, sector_num * BDRV_SECTOR_SIZE, |
1477 | nb_sectors * BDRV_SECTOR_SIZE, | |
d14ed18c MR |
1478 | filename2, buf1, quiet); |
1479 | } | |
1480 | if (ret) { | |
d14ed18c MR |
1481 | goto out; |
1482 | } | |
1483 | } | |
1484 | sector_num += nb_sectors; | |
1485 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1486 | } | |
1487 | ||
1488 | if (total_sectors1 != total_sectors2) { | |
f1d3cd79 | 1489 | BlockBackend *blk_over; |
d14ed18c MR |
1490 | const char *filename_over; |
1491 | ||
1492 | qprintf(quiet, "Warning: Image size mismatch!\n"); | |
1493 | if (total_sectors1 > total_sectors2) { | |
f1d3cd79 | 1494 | blk_over = blk1; |
d14ed18c MR |
1495 | filename_over = filename1; |
1496 | } else { | |
f1d3cd79 | 1497 | blk_over = blk2; |
d14ed18c MR |
1498 | filename_over = filename2; |
1499 | } | |
1500 | ||
7daddc61 | 1501 | while (sector_num < progress_base) { |
51b0a488 EB |
1502 | int64_t count; |
1503 | ||
391cb1aa | 1504 | ret = bdrv_block_status_above(blk_bs(blk_over), NULL, |
51b0a488 | 1505 | sector_num * BDRV_SECTOR_SIZE, |
7daddc61 EB |
1506 | (progress_base - sector_num) * |
1507 | BDRV_SECTOR_SIZE, | |
391cb1aa | 1508 | &count, NULL, NULL); |
d14ed18c MR |
1509 | if (ret < 0) { |
1510 | ret = 3; | |
1511 | error_report("Sector allocation test failed for %s", | |
1512 | filename_over); | |
1513 | goto out; | |
1514 | ||
1515 | } | |
391cb1aa | 1516 | /* TODO relax this once bdrv_block_status_above does not enforce |
51b0a488 EB |
1517 | * sector alignment */ |
1518 | assert(QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)); | |
1519 | nb_sectors = count >> BDRV_SECTOR_BITS; | |
391cb1aa | 1520 | if (ret & BDRV_BLOCK_ALLOCATED && !(ret & BDRV_BLOCK_ZERO)) { |
7daddc61 | 1521 | nb_sectors = MIN(nb_sectors, IO_BUF_SIZE >> BDRV_SECTOR_BITS); |
c41508ed EB |
1522 | ret = check_empty_sectors(blk_over, |
1523 | sector_num * BDRV_SECTOR_SIZE, | |
1524 | nb_sectors * BDRV_SECTOR_SIZE, | |
d14ed18c MR |
1525 | filename_over, buf1, quiet); |
1526 | if (ret) { | |
d14ed18c MR |
1527 | goto out; |
1528 | } | |
1529 | } | |
1530 | sector_num += nb_sectors; | |
1531 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1532 | } | |
1533 | } | |
1534 | ||
1535 | qprintf(quiet, "Images are identical.\n"); | |
1536 | ret = 0; | |
1537 | ||
1538 | out: | |
d14ed18c MR |
1539 | qemu_vfree(buf1); |
1540 | qemu_vfree(buf2); | |
26f54e9a | 1541 | blk_unref(blk2); |
d14ed18c | 1542 | out2: |
26f54e9a | 1543 | blk_unref(blk1); |
d14ed18c MR |
1544 | out3: |
1545 | qemu_progress_end(); | |
3babeb15 | 1546 | out4: |
d14ed18c MR |
1547 | return ret; |
1548 | } | |
1549 | ||
690c7301 KW |
1550 | enum ImgConvertBlockStatus { |
1551 | BLK_DATA, | |
1552 | BLK_ZERO, | |
1553 | BLK_BACKING_FILE, | |
1554 | }; | |
1555 | ||
2d9187bc PL |
1556 | #define MAX_COROUTINES 16 |
1557 | ||
690c7301 KW |
1558 | typedef struct ImgConvertState { |
1559 | BlockBackend **src; | |
1560 | int64_t *src_sectors; | |
2d9187bc | 1561 | int src_num; |
690c7301 KW |
1562 | int64_t total_sectors; |
1563 | int64_t allocated_sectors; | |
2d9187bc PL |
1564 | int64_t allocated_done; |
1565 | int64_t sector_num; | |
1566 | int64_t wr_offs; | |
690c7301 KW |
1567 | enum ImgConvertBlockStatus status; |
1568 | int64_t sector_next_status; | |
1569 | BlockBackend *target; | |
1570 | bool has_zero_init; | |
1571 | bool compressed; | |
1572 | bool target_has_backing; | |
2d9187bc | 1573 | bool wr_in_order; |
690c7301 KW |
1574 | int min_sparse; |
1575 | size_t cluster_sectors; | |
1576 | size_t buf_sectors; | |
9fd77f99 | 1577 | long num_coroutines; |
2d9187bc PL |
1578 | int running_coroutines; |
1579 | Coroutine *co[MAX_COROUTINES]; | |
1580 | int64_t wait_sector_num[MAX_COROUTINES]; | |
1581 | CoMutex lock; | |
1582 | int ret; | |
690c7301 KW |
1583 | } ImgConvertState; |
1584 | ||
2d9187bc PL |
1585 | static void convert_select_part(ImgConvertState *s, int64_t sector_num, |
1586 | int *src_cur, int64_t *src_cur_offset) | |
690c7301 | 1587 | { |
2d9187bc PL |
1588 | *src_cur = 0; |
1589 | *src_cur_offset = 0; | |
1590 | while (sector_num - *src_cur_offset >= s->src_sectors[*src_cur]) { | |
1591 | *src_cur_offset += s->src_sectors[*src_cur]; | |
1592 | (*src_cur)++; | |
1593 | assert(*src_cur < s->src_num); | |
690c7301 KW |
1594 | } |
1595 | } | |
1596 | ||
1597 | static int convert_iteration_sectors(ImgConvertState *s, int64_t sector_num) | |
1598 | { | |
31826642 EB |
1599 | int64_t src_cur_offset; |
1600 | int ret, n, src_cur; | |
690c7301 | 1601 | |
2d9187bc | 1602 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
690c7301 KW |
1603 | |
1604 | assert(s->total_sectors > sector_num); | |
1605 | n = MIN(s->total_sectors - sector_num, BDRV_REQUEST_MAX_SECTORS); | |
1606 | ||
1607 | if (s->sector_next_status <= sector_num) { | |
31826642 EB |
1608 | int64_t count = n * BDRV_SECTOR_SIZE; |
1609 | ||
9f1b92ad | 1610 | if (s->target_has_backing) { |
237d78f8 EB |
1611 | |
1612 | ret = bdrv_block_status(blk_bs(s->src[src_cur]), | |
1613 | (sector_num - src_cur_offset) * | |
1614 | BDRV_SECTOR_SIZE, | |
1615 | count, &count, NULL, NULL); | |
9f1b92ad | 1616 | } else { |
31826642 EB |
1617 | ret = bdrv_block_status_above(blk_bs(s->src[src_cur]), NULL, |
1618 | (sector_num - src_cur_offset) * | |
1619 | BDRV_SECTOR_SIZE, | |
1620 | count, &count, NULL, NULL); | |
9f1b92ad | 1621 | } |
690c7301 KW |
1622 | if (ret < 0) { |
1623 | return ret; | |
1624 | } | |
31826642 | 1625 | n = DIV_ROUND_UP(count, BDRV_SECTOR_SIZE); |
690c7301 KW |
1626 | |
1627 | if (ret & BDRV_BLOCK_ZERO) { | |
1628 | s->status = BLK_ZERO; | |
1629 | } else if (ret & BDRV_BLOCK_DATA) { | |
1630 | s->status = BLK_DATA; | |
690c7301 | 1631 | } else { |
9f1b92ad | 1632 | s->status = s->target_has_backing ? BLK_BACKING_FILE : BLK_DATA; |
690c7301 KW |
1633 | } |
1634 | ||
1635 | s->sector_next_status = sector_num + n; | |
1636 | } | |
1637 | ||
1638 | n = MIN(n, s->sector_next_status - sector_num); | |
1639 | if (s->status == BLK_DATA) { | |
1640 | n = MIN(n, s->buf_sectors); | |
1641 | } | |
1642 | ||
1643 | /* We need to write complete clusters for compressed images, so if an | |
1644 | * unallocated area is shorter than that, we must consider the whole | |
1645 | * cluster allocated. */ | |
1646 | if (s->compressed) { | |
1647 | if (n < s->cluster_sectors) { | |
1648 | n = MIN(s->cluster_sectors, s->total_sectors - sector_num); | |
1649 | s->status = BLK_DATA; | |
1650 | } else { | |
1651 | n = QEMU_ALIGN_DOWN(n, s->cluster_sectors); | |
1652 | } | |
1653 | } | |
1654 | ||
1655 | return n; | |
1656 | } | |
1657 | ||
2d9187bc PL |
1658 | static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, |
1659 | int nb_sectors, uint8_t *buf) | |
690c7301 | 1660 | { |
2d9187bc PL |
1661 | int n, ret; |
1662 | QEMUIOVector qiov; | |
1663 | struct iovec iov; | |
690c7301 | 1664 | |
690c7301 KW |
1665 | assert(nb_sectors <= s->buf_sectors); |
1666 | while (nb_sectors > 0) { | |
1667 | BlockBackend *blk; | |
2d9187bc PL |
1668 | int src_cur; |
1669 | int64_t bs_sectors, src_cur_offset; | |
690c7301 KW |
1670 | |
1671 | /* In the case of compression with multiple source files, we can get a | |
1672 | * nb_sectors that spreads into the next part. So we must be able to | |
1673 | * read across multiple BDSes for one convert_read() call. */ | |
2d9187bc PL |
1674 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
1675 | blk = s->src[src_cur]; | |
1676 | bs_sectors = s->src_sectors[src_cur]; | |
1677 | ||
1678 | n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); | |
1679 | iov.iov_base = buf; | |
1680 | iov.iov_len = n << BDRV_SECTOR_BITS; | |
1681 | qemu_iovec_init_external(&qiov, &iov, 1); | |
1682 | ||
1683 | ret = blk_co_preadv( | |
1684 | blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS, | |
1685 | n << BDRV_SECTOR_BITS, &qiov, 0); | |
690c7301 KW |
1686 | if (ret < 0) { |
1687 | return ret; | |
1688 | } | |
1689 | ||
1690 | sector_num += n; | |
1691 | nb_sectors -= n; | |
1692 | buf += n * BDRV_SECTOR_SIZE; | |
1693 | } | |
1694 | ||
1695 | return 0; | |
1696 | } | |
1697 | ||
2d9187bc PL |
1698 | |
1699 | static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, | |
1700 | int nb_sectors, uint8_t *buf, | |
1701 | enum ImgConvertBlockStatus status) | |
690c7301 KW |
1702 | { |
1703 | int ret; | |
2d9187bc PL |
1704 | QEMUIOVector qiov; |
1705 | struct iovec iov; | |
690c7301 KW |
1706 | |
1707 | while (nb_sectors > 0) { | |
1708 | int n = nb_sectors; | |
db933fbe LC |
1709 | BdrvRequestFlags flags = s->compressed ? BDRV_REQ_WRITE_COMPRESSED : 0; |
1710 | ||
2d9187bc | 1711 | switch (status) { |
690c7301 KW |
1712 | case BLK_BACKING_FILE: |
1713 | /* If we have a backing file, leave clusters unallocated that are | |
1714 | * unallocated in the source image, so that the backing file is | |
1715 | * visible at the respective offset. */ | |
1716 | assert(s->target_has_backing); | |
1717 | break; | |
1718 | ||
1719 | case BLK_DATA: | |
db933fbe LC |
1720 | /* If we're told to keep the target fully allocated (-S 0) or there |
1721 | * is real non-zero data, we must write it. Otherwise we can treat | |
1722 | * it as zero sectors. | |
1723 | * Compressed clusters need to be written as a whole, so in that | |
1724 | * case we can only save the write if the buffer is completely | |
1725 | * zeroed. */ | |
690c7301 | 1726 | if (!s->min_sparse || |
db933fbe LC |
1727 | (!s->compressed && |
1728 | is_allocated_sectors_min(buf, n, &n, s->min_sparse)) || | |
1729 | (s->compressed && | |
1730 | !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE))) | |
690c7301 | 1731 | { |
2d9187bc PL |
1732 | iov.iov_base = buf; |
1733 | iov.iov_len = n << BDRV_SECTOR_BITS; | |
1734 | qemu_iovec_init_external(&qiov, &iov, 1); | |
1735 | ||
1736 | ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS, | |
db933fbe | 1737 | n << BDRV_SECTOR_BITS, &qiov, flags); |
690c7301 KW |
1738 | if (ret < 0) { |
1739 | return ret; | |
1740 | } | |
1741 | break; | |
1742 | } | |
1743 | /* fall-through */ | |
1744 | ||
1745 | case BLK_ZERO: | |
1746 | if (s->has_zero_init) { | |
db933fbe | 1747 | assert(!s->target_has_backing); |
690c7301 KW |
1748 | break; |
1749 | } | |
2d9187bc PL |
1750 | ret = blk_co_pwrite_zeroes(s->target, |
1751 | sector_num << BDRV_SECTOR_BITS, | |
1752 | n << BDRV_SECTOR_BITS, 0); | |
690c7301 KW |
1753 | if (ret < 0) { |
1754 | return ret; | |
1755 | } | |
1756 | break; | |
1757 | } | |
1758 | ||
1759 | sector_num += n; | |
1760 | nb_sectors -= n; | |
1761 | buf += n * BDRV_SECTOR_SIZE; | |
1762 | } | |
1763 | ||
1764 | return 0; | |
1765 | } | |
1766 | ||
2d9187bc | 1767 | static void coroutine_fn convert_co_do_copy(void *opaque) |
690c7301 | 1768 | { |
2d9187bc | 1769 | ImgConvertState *s = opaque; |
690c7301 | 1770 | uint8_t *buf = NULL; |
2d9187bc PL |
1771 | int ret, i; |
1772 | int index = -1; | |
1773 | ||
1774 | for (i = 0; i < s->num_coroutines; i++) { | |
1775 | if (s->co[i] == qemu_coroutine_self()) { | |
1776 | index = i; | |
1777 | break; | |
1778 | } | |
1779 | } | |
1780 | assert(index >= 0); | |
1781 | ||
1782 | s->running_coroutines++; | |
1783 | buf = blk_blockalign(s->target, s->buf_sectors * BDRV_SECTOR_SIZE); | |
1784 | ||
1785 | while (1) { | |
1786 | int n; | |
1787 | int64_t sector_num; | |
1788 | enum ImgConvertBlockStatus status; | |
1789 | ||
1790 | qemu_co_mutex_lock(&s->lock); | |
1791 | if (s->ret != -EINPROGRESS || s->sector_num >= s->total_sectors) { | |
1792 | qemu_co_mutex_unlock(&s->lock); | |
b91127ed | 1793 | break; |
2d9187bc PL |
1794 | } |
1795 | n = convert_iteration_sectors(s, s->sector_num); | |
1796 | if (n < 0) { | |
1797 | qemu_co_mutex_unlock(&s->lock); | |
1798 | s->ret = n; | |
b91127ed | 1799 | break; |
2d9187bc PL |
1800 | } |
1801 | /* save current sector and allocation status to local variables */ | |
1802 | sector_num = s->sector_num; | |
1803 | status = s->status; | |
1804 | if (!s->min_sparse && s->status == BLK_ZERO) { | |
1805 | n = MIN(n, s->buf_sectors); | |
1806 | } | |
1807 | /* increment global sector counter so that other coroutines can | |
1808 | * already continue reading beyond this request */ | |
1809 | s->sector_num += n; | |
1810 | qemu_co_mutex_unlock(&s->lock); | |
1811 | ||
1812 | if (status == BLK_DATA || (!s->min_sparse && status == BLK_ZERO)) { | |
1813 | s->allocated_done += n; | |
1814 | qemu_progress_print(100.0 * s->allocated_done / | |
1815 | s->allocated_sectors, 0); | |
1816 | } | |
1817 | ||
1818 | if (status == BLK_DATA) { | |
1819 | ret = convert_co_read(s, sector_num, n, buf); | |
1820 | if (ret < 0) { | |
1821 | error_report("error while reading sector %" PRId64 | |
1822 | ": %s", sector_num, strerror(-ret)); | |
1823 | s->ret = ret; | |
2d9187bc PL |
1824 | } |
1825 | } else if (!s->min_sparse && status == BLK_ZERO) { | |
1826 | status = BLK_DATA; | |
1827 | memset(buf, 0x00, n * BDRV_SECTOR_SIZE); | |
1828 | } | |
1829 | ||
1830 | if (s->wr_in_order) { | |
1831 | /* keep writes in order */ | |
b91127ed | 1832 | while (s->wr_offs != sector_num && s->ret == -EINPROGRESS) { |
2d9187bc PL |
1833 | s->wait_sector_num[index] = sector_num; |
1834 | qemu_coroutine_yield(); | |
1835 | } | |
1836 | s->wait_sector_num[index] = -1; | |
1837 | } | |
1838 | ||
b91127ed AN |
1839 | if (s->ret == -EINPROGRESS) { |
1840 | ret = convert_co_write(s, sector_num, n, buf, status); | |
1841 | if (ret < 0) { | |
1842 | error_report("error while writing sector %" PRId64 | |
1843 | ": %s", sector_num, strerror(-ret)); | |
1844 | s->ret = ret; | |
1845 | } | |
2d9187bc PL |
1846 | } |
1847 | ||
1848 | if (s->wr_in_order) { | |
1849 | /* reenter the coroutine that might have waited | |
1850 | * for this write to complete */ | |
1851 | s->wr_offs = sector_num + n; | |
1852 | for (i = 0; i < s->num_coroutines; i++) { | |
1853 | if (s->co[i] && s->wait_sector_num[i] == s->wr_offs) { | |
1854 | /* | |
1855 | * A -> B -> A cannot occur because A has | |
1856 | * s->wait_sector_num[i] == -1 during A -> B. Therefore | |
1857 | * B will never enter A during this time window. | |
1858 | */ | |
1859 | qemu_coroutine_enter(s->co[i]); | |
1860 | break; | |
1861 | } | |
1862 | } | |
1863 | } | |
1864 | } | |
1865 | ||
2d9187bc PL |
1866 | qemu_vfree(buf); |
1867 | s->co[index] = NULL; | |
1868 | s->running_coroutines--; | |
1869 | if (!s->running_coroutines && s->ret == -EINPROGRESS) { | |
1870 | /* the convert job finished successfully */ | |
1871 | s->ret = 0; | |
1872 | } | |
1873 | } | |
1874 | ||
1875 | static int convert_do_copy(ImgConvertState *s) | |
1876 | { | |
1877 | int ret, i, n; | |
1878 | int64_t sector_num = 0; | |
690c7301 KW |
1879 | |
1880 | /* Check whether we have zero initialisation or can get it efficiently */ | |
1881 | s->has_zero_init = s->min_sparse && !s->target_has_backing | |
1882 | ? bdrv_has_zero_init(blk_bs(s->target)) | |
1883 | : false; | |
1884 | ||
1885 | if (!s->has_zero_init && !s->target_has_backing && | |
1886 | bdrv_can_write_zeroes_with_unmap(blk_bs(s->target))) | |
1887 | { | |
720ff280 | 1888 | ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP); |
690c7301 KW |
1889 | if (ret == 0) { |
1890 | s->has_zero_init = true; | |
1891 | } | |
1892 | } | |
1893 | ||
1894 | /* Allocate buffer for copied data. For compressed images, only one cluster | |
1895 | * can be copied at a time. */ | |
1896 | if (s->compressed) { | |
1897 | if (s->cluster_sectors <= 0 || s->cluster_sectors > s->buf_sectors) { | |
1898 | error_report("invalid cluster size"); | |
2d9187bc | 1899 | return -EINVAL; |
690c7301 KW |
1900 | } |
1901 | s->buf_sectors = s->cluster_sectors; | |
1902 | } | |
690c7301 | 1903 | |
690c7301 KW |
1904 | while (sector_num < s->total_sectors) { |
1905 | n = convert_iteration_sectors(s, sector_num); | |
1906 | if (n < 0) { | |
2d9187bc | 1907 | return n; |
690c7301 | 1908 | } |
aad15de4 HR |
1909 | if (s->status == BLK_DATA || (!s->min_sparse && s->status == BLK_ZERO)) |
1910 | { | |
690c7301 KW |
1911 | s->allocated_sectors += n; |
1912 | } | |
1913 | sector_num += n; | |
1914 | } | |
1915 | ||
1916 | /* Do the copy */ | |
690c7301 | 1917 | s->sector_next_status = 0; |
2d9187bc | 1918 | s->ret = -EINPROGRESS; |
690c7301 | 1919 | |
2d9187bc PL |
1920 | qemu_co_mutex_init(&s->lock); |
1921 | for (i = 0; i < s->num_coroutines; i++) { | |
1922 | s->co[i] = qemu_coroutine_create(convert_co_do_copy, s); | |
1923 | s->wait_sector_num[i] = -1; | |
1924 | qemu_coroutine_enter(s->co[i]); | |
1925 | } | |
690c7301 | 1926 | |
b91127ed | 1927 | while (s->running_coroutines) { |
2d9187bc | 1928 | main_loop_wait(false); |
690c7301 KW |
1929 | } |
1930 | ||
2d9187bc | 1931 | if (s->compressed && !s->ret) { |
690c7301 | 1932 | /* signal EOF to align */ |
fe5c1355 | 1933 | ret = blk_pwrite_compressed(s->target, 0, NULL, 0); |
690c7301 | 1934 | if (ret < 0) { |
2d9187bc | 1935 | return ret; |
690c7301 KW |
1936 | } |
1937 | } | |
1938 | ||
2d9187bc | 1939 | return s->ret; |
690c7301 KW |
1940 | } |
1941 | ||
ea2384d3 FB |
1942 | static int img_convert(int argc, char **argv) |
1943 | { | |
9fd77f99 | 1944 | int c, bs_i, flags, src_flags = 0; |
305b4c60 | 1945 | const char *fmt = NULL, *out_fmt = NULL, *cache = "unsafe", |
9fd77f99 PL |
1946 | *src_cache = BDRV_DEFAULT_CACHE, *out_baseimg = NULL, |
1947 | *out_filename, *out_baseimg_param, *snapshot_name = NULL; | |
305b4c60 | 1948 | BlockDriver *drv = NULL, *proto_drv = NULL; |
faea38e7 | 1949 | BlockDriverInfo bdi; |
9fd77f99 PL |
1950 | BlockDriverState *out_bs; |
1951 | QemuOpts *opts = NULL, *sn_opts = NULL; | |
83d0521a | 1952 | QemuOptsList *create_opts = NULL; |
efa84d43 | 1953 | char *options = NULL; |
cc84d90f | 1954 | Error *local_err = NULL; |
9fd77f99 | 1955 | bool writethrough, src_writethrough, quiet = false, image_opts = false, |
305b4c60 | 1956 | skip_create = false, progress = false, tgt_image_opts = false; |
9fd77f99 | 1957 | int64_t ret = -EINVAL; |
335e9937 | 1958 | bool force_share = false; |
9fd77f99 PL |
1959 | |
1960 | ImgConvertState s = (ImgConvertState) { | |
1961 | /* Need at least 4k of zeros for sparse detection */ | |
1962 | .min_sparse = 8, | |
1963 | .buf_sectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE, | |
1964 | .wr_in_order = true, | |
1965 | .num_coroutines = 8, | |
1966 | }; | |
ea2384d3 | 1967 | |
ea2384d3 | 1968 | for(;;) { |
3babeb15 DB |
1969 | static const struct option long_options[] = { |
1970 | {"help", no_argument, 0, 'h'}, | |
1971 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 1972 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 1973 | {"force-share", no_argument, 0, 'U'}, |
305b4c60 | 1974 | {"target-image-opts", no_argument, 0, OPTION_TARGET_IMAGE_OPTS}, |
3babeb15 DB |
1975 | {0, 0, 0, 0} |
1976 | }; | |
6b4df548 | 1977 | c = getopt_long(argc, argv, ":hf:O:B:co:s:l:S:pt:T:qnm:WU", |
3babeb15 | 1978 | long_options, NULL); |
b8fb60da | 1979 | if (c == -1) { |
ea2384d3 | 1980 | break; |
b8fb60da | 1981 | } |
ea2384d3 | 1982 | switch(c) { |
c9192973 SH |
1983 | case ':': |
1984 | missing_argument(argv[optind - 1]); | |
1985 | break; | |
ef87394c | 1986 | case '?': |
c9192973 SH |
1987 | unrecognized_option(argv[optind - 1]); |
1988 | break; | |
ea2384d3 FB |
1989 | case 'h': |
1990 | help(); | |
1991 | break; | |
1992 | case 'f': | |
1993 | fmt = optarg; | |
1994 | break; | |
1995 | case 'O': | |
1996 | out_fmt = optarg; | |
1997 | break; | |
f58c7b35 TS |
1998 | case 'B': |
1999 | out_baseimg = optarg; | |
2000 | break; | |
ea2384d3 | 2001 | case 'c': |
9fd77f99 | 2002 | s.compressed = true; |
ea2384d3 | 2003 | break; |
efa84d43 | 2004 | case 'o': |
2dc8328b KW |
2005 | if (!is_valid_option_list(optarg)) { |
2006 | error_report("Invalid option list: %s", optarg); | |
64bb01aa | 2007 | goto fail_getopt; |
2dc8328b KW |
2008 | } |
2009 | if (!options) { | |
2010 | options = g_strdup(optarg); | |
2011 | } else { | |
2012 | char *old_options = options; | |
2013 | options = g_strdup_printf("%s,%s", options, optarg); | |
2014 | g_free(old_options); | |
2015 | } | |
efa84d43 | 2016 | break; |
51ef6727 | 2017 | case 's': |
2018 | snapshot_name = optarg; | |
2019 | break; | |
ef80654d WX |
2020 | case 'l': |
2021 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
70b94331 MA |
2022 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, |
2023 | optarg, false); | |
ef80654d WX |
2024 | if (!sn_opts) { |
2025 | error_report("Failed in parsing snapshot param '%s'", | |
2026 | optarg); | |
64bb01aa | 2027 | goto fail_getopt; |
ef80654d WX |
2028 | } |
2029 | } else { | |
2030 | snapshot_name = optarg; | |
2031 | } | |
2032 | break; | |
a22f123c KW |
2033 | case 'S': |
2034 | { | |
2035 | int64_t sval; | |
606caa0a MA |
2036 | |
2037 | sval = cvtnum(optarg); | |
2038 | if (sval < 0) { | |
a22f123c | 2039 | error_report("Invalid minimum zero buffer size for sparse output specified"); |
64bb01aa | 2040 | goto fail_getopt; |
a22f123c KW |
2041 | } |
2042 | ||
9fd77f99 | 2043 | s.min_sparse = sval / BDRV_SECTOR_SIZE; |
a22f123c KW |
2044 | break; |
2045 | } | |
6b837bc4 | 2046 | case 'p': |
9fd77f99 | 2047 | progress = true; |
6b837bc4 | 2048 | break; |
661a0f71 FS |
2049 | case 't': |
2050 | cache = optarg; | |
2051 | break; | |
40055951 HR |
2052 | case 'T': |
2053 | src_cache = optarg; | |
2054 | break; | |
f382d43a MR |
2055 | case 'q': |
2056 | quiet = true; | |
2057 | break; | |
b2e10493 | 2058 | case 'n': |
9fd77f99 | 2059 | skip_create = true; |
b2e10493 | 2060 | break; |
2d9187bc | 2061 | case 'm': |
9fd77f99 PL |
2062 | if (qemu_strtol(optarg, NULL, 0, &s.num_coroutines) || |
2063 | s.num_coroutines < 1 || s.num_coroutines > MAX_COROUTINES) { | |
2d9187bc PL |
2064 | error_report("Invalid number of coroutines. Allowed number of" |
2065 | " coroutines is between 1 and %d", MAX_COROUTINES); | |
2d9187bc PL |
2066 | goto fail_getopt; |
2067 | } | |
2068 | break; | |
2069 | case 'W': | |
9fd77f99 | 2070 | s.wr_in_order = false; |
2d9187bc | 2071 | break; |
335e9937 FZ |
2072 | case 'U': |
2073 | force_share = true; | |
2074 | break; | |
3258b911 HR |
2075 | case OPTION_OBJECT: { |
2076 | QemuOpts *object_opts; | |
2077 | object_opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2078 | optarg, true); | |
2079 | if (!object_opts) { | |
3babeb15 DB |
2080 | goto fail_getopt; |
2081 | } | |
2082 | break; | |
3258b911 | 2083 | } |
eb769f74 DB |
2084 | case OPTION_IMAGE_OPTS: |
2085 | image_opts = true; | |
2086 | break; | |
305b4c60 DB |
2087 | case OPTION_TARGET_IMAGE_OPTS: |
2088 | tgt_image_opts = true; | |
2089 | break; | |
ea2384d3 FB |
2090 | } |
2091 | } | |
3b46e624 | 2092 | |
305b4c60 DB |
2093 | if (!out_fmt && !tgt_image_opts) { |
2094 | out_fmt = "raw"; | |
2095 | } | |
2096 | ||
3babeb15 DB |
2097 | if (qemu_opts_foreach(&qemu_object_opts, |
2098 | user_creatable_add_opts_foreach, | |
51b9b478 | 2099 | NULL, NULL)) { |
3babeb15 DB |
2100 | goto fail_getopt; |
2101 | } | |
2102 | ||
9fd77f99 | 2103 | if (!s.wr_in_order && s.compressed) { |
2d9187bc | 2104 | error_report("Out of order write and compress are mutually exclusive"); |
2d9187bc PL |
2105 | goto fail_getopt; |
2106 | } | |
2107 | ||
305b4c60 DB |
2108 | if (tgt_image_opts && !skip_create) { |
2109 | error_report("--target-image-opts requires use of -n flag"); | |
2110 | goto fail_getopt; | |
2111 | } | |
2112 | ||
9fd77f99 PL |
2113 | s.src_num = argc - optind - 1; |
2114 | out_filename = s.src_num >= 1 ? argv[argc - 1] : NULL; | |
f58c7b35 | 2115 | |
2dc8328b | 2116 | if (options && has_help_option(options)) { |
305b4c60 DB |
2117 | if (out_fmt) { |
2118 | ret = print_block_option_help(out_filename, out_fmt); | |
2119 | goto fail_getopt; | |
2120 | } else { | |
2121 | error_report("Option help requires a format be specified"); | |
2122 | goto fail_getopt; | |
2123 | } | |
4ac8aacd JS |
2124 | } |
2125 | ||
9fd77f99 PL |
2126 | if (s.src_num < 1) { |
2127 | error_report("Must specify image file name"); | |
2128 | goto fail_getopt; | |
a283cb6e KW |
2129 | } |
2130 | ||
2131 | ||
9fd77f99 | 2132 | /* ret is still -EINVAL until here */ |
ce099547 | 2133 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); |
40055951 HR |
2134 | if (ret < 0) { |
2135 | error_report("Invalid source cache option: %s", src_cache); | |
9fd77f99 | 2136 | goto fail_getopt; |
40055951 HR |
2137 | } |
2138 | ||
9fd77f99 PL |
2139 | /* Initialize before goto out */ |
2140 | if (quiet) { | |
2141 | progress = false; | |
2142 | } | |
2143 | qemu_progress_init(progress, 1.0); | |
6b837bc4 JS |
2144 | qemu_progress_print(0, 100); |
2145 | ||
9fd77f99 PL |
2146 | s.src = g_new0(BlockBackend *, s.src_num); |
2147 | s.src_sectors = g_new(int64_t, s.src_num); | |
926c2d23 | 2148 | |
9fd77f99 PL |
2149 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { |
2150 | s.src[bs_i] = img_open(image_opts, argv[optind + bs_i], | |
335e9937 FZ |
2151 | fmt, src_flags, src_writethrough, quiet, |
2152 | force_share); | |
9fd77f99 | 2153 | if (!s.src[bs_i]) { |
c2abccec MK |
2154 | ret = -1; |
2155 | goto out; | |
2156 | } | |
9fd77f99 PL |
2157 | s.src_sectors[bs_i] = blk_nb_sectors(s.src[bs_i]); |
2158 | if (s.src_sectors[bs_i] < 0) { | |
52bf1e72 | 2159 | error_report("Could not get size of %s: %s", |
9fd77f99 | 2160 | argv[optind + bs_i], strerror(-s.src_sectors[bs_i])); |
52bf1e72 MA |
2161 | ret = -1; |
2162 | goto out; | |
2163 | } | |
9fd77f99 | 2164 | s.total_sectors += s.src_sectors[bs_i]; |
926c2d23 | 2165 | } |
ea2384d3 | 2166 | |
ef80654d | 2167 | if (sn_opts) { |
9fd77f99 | 2168 | bdrv_snapshot_load_tmp(blk_bs(s.src[0]), |
10d6eda1 PM |
2169 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), |
2170 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
2171 | &local_err); | |
ef80654d | 2172 | } else if (snapshot_name != NULL) { |
9fd77f99 | 2173 | if (s.src_num > 1) { |
6daf194d | 2174 | error_report("No support for concatenating multiple snapshot"); |
51ef6727 | 2175 | ret = -1; |
2176 | goto out; | |
2177 | } | |
7b4c4781 | 2178 | |
9fd77f99 PL |
2179 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(s.src[0]), snapshot_name, |
2180 | &local_err); | |
ef80654d | 2181 | } |
84d18f06 | 2182 | if (local_err) { |
c29b77f9 | 2183 | error_reportf_err(local_err, "Failed to load snapshot: "); |
ef80654d WX |
2184 | ret = -1; |
2185 | goto out; | |
51ef6727 | 2186 | } |
2187 | ||
305b4c60 DB |
2188 | if (!skip_create) { |
2189 | /* Find driver and parse its options */ | |
2190 | drv = bdrv_find_format(out_fmt); | |
2191 | if (!drv) { | |
2192 | error_report("Unknown file format '%s'", out_fmt); | |
2193 | ret = -1; | |
2194 | goto out; | |
2195 | } | |
efa84d43 | 2196 | |
305b4c60 DB |
2197 | proto_drv = bdrv_find_protocol(out_filename, true, &local_err); |
2198 | if (!proto_drv) { | |
2199 | error_report_err(local_err); | |
2200 | ret = -1; | |
2201 | goto out; | |
2202 | } | |
b50cbabc | 2203 | |
2e024cde HR |
2204 | if (!drv->create_opts) { |
2205 | error_report("Format driver '%s' does not support image creation", | |
2206 | drv->format_name); | |
2207 | ret = -1; | |
2208 | goto out; | |
2209 | } | |
f75613cf | 2210 | |
2e024cde HR |
2211 | if (!proto_drv->create_opts) { |
2212 | error_report("Protocol driver '%s' does not support image creation", | |
2213 | proto_drv->format_name); | |
2214 | ret = -1; | |
2215 | goto out; | |
2216 | } | |
f75613cf | 2217 | |
2e024cde HR |
2218 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
2219 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
db08adf5 | 2220 | |
2e024cde | 2221 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); |
dc523cd3 MA |
2222 | if (options) { |
2223 | qemu_opts_do_parse(opts, options, NULL, &local_err); | |
2224 | if (local_err) { | |
97a2ca7a | 2225 | error_report_err(local_err); |
dc523cd3 MA |
2226 | ret = -1; |
2227 | goto out; | |
2228 | } | |
2e024cde | 2229 | } |
efa84d43 | 2230 | |
9fd77f99 | 2231 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, s.total_sectors * 512, |
39101f25 | 2232 | &error_abort); |
2e024cde HR |
2233 | ret = add_old_style_options(out_fmt, opts, out_baseimg, NULL); |
2234 | if (ret < 0) { | |
2235 | goto out; | |
2236 | } | |
c2abccec | 2237 | } |
efa84d43 | 2238 | |
a18953fb | 2239 | /* Get backing file name if -o backing_file was used */ |
83d0521a | 2240 | out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE); |
a18953fb | 2241 | if (out_baseimg_param) { |
83d0521a | 2242 | out_baseimg = out_baseimg_param; |
a18953fb | 2243 | } |
9fd77f99 | 2244 | s.target_has_backing = (bool) out_baseimg; |
a18953fb | 2245 | |
48758a84 HR |
2246 | if (s.src_num > 1 && out_baseimg) { |
2247 | error_report("Having a backing file for the target makes no sense when " | |
2248 | "concatenating multiple input images"); | |
2249 | ret = -1; | |
2250 | goto out; | |
2251 | } | |
2252 | ||
efa84d43 | 2253 | /* Check if compression is supported */ |
9fd77f99 | 2254 | if (s.compressed) { |
83d0521a CL |
2255 | bool encryption = |
2256 | qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false); | |
0cb8d47b DB |
2257 | const char *encryptfmt = |
2258 | qemu_opt_get(opts, BLOCK_OPT_ENCRYPT_FORMAT); | |
83d0521a CL |
2259 | const char *preallocation = |
2260 | qemu_opt_get(opts, BLOCK_OPT_PREALLOC); | |
efa84d43 | 2261 | |
305b4c60 | 2262 | if (drv && !drv->bdrv_co_pwritev_compressed) { |
15654a6d | 2263 | error_report("Compression not supported for this file format"); |
c2abccec MK |
2264 | ret = -1; |
2265 | goto out; | |
efa84d43 KW |
2266 | } |
2267 | ||
0cb8d47b | 2268 | if (encryption || encryptfmt) { |
15654a6d JS |
2269 | error_report("Compression and encryption not supported at " |
2270 | "the same time"); | |
c2abccec MK |
2271 | ret = -1; |
2272 | goto out; | |
efa84d43 | 2273 | } |
41521fa4 | 2274 | |
83d0521a CL |
2275 | if (preallocation |
2276 | && strcmp(preallocation, "off")) | |
41521fa4 KW |
2277 | { |
2278 | error_report("Compression and preallocation not supported at " | |
2279 | "the same time"); | |
2280 | ret = -1; | |
2281 | goto out; | |
2282 | } | |
efa84d43 KW |
2283 | } |
2284 | ||
b2e10493 AD |
2285 | if (!skip_create) { |
2286 | /* Create the new image */ | |
c282e1fd | 2287 | ret = bdrv_create(drv, out_filename, opts, &local_err); |
b2e10493 | 2288 | if (ret < 0) { |
c29b77f9 MA |
2289 | error_reportf_err(local_err, "%s: error while converting %s: ", |
2290 | out_filename, out_fmt); | |
b2e10493 | 2291 | goto out; |
ea2384d3 FB |
2292 | } |
2293 | } | |
3b46e624 | 2294 | |
9fd77f99 | 2295 | flags = s.min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR; |
ce099547 | 2296 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
2297 | if (ret < 0) { |
2298 | error_report("Invalid cache option: %s", cache); | |
bb9cd2ee | 2299 | goto out; |
661a0f71 FS |
2300 | } |
2301 | ||
305b4c60 DB |
2302 | if (skip_create) { |
2303 | s.target = img_open(tgt_image_opts, out_filename, out_fmt, | |
2304 | flags, writethrough, quiet, false); | |
2305 | } else { | |
2306 | /* TODO ultimately we should allow --target-image-opts | |
2307 | * to be used even when -n is not given. | |
2308 | * That has to wait for bdrv_create to be improved | |
2309 | * to allow filenames in option syntax | |
2310 | */ | |
29cf9336 DB |
2311 | s.target = img_open_new_file(out_filename, opts, out_fmt, |
2312 | flags, writethrough, quiet, false); | |
305b4c60 | 2313 | } |
9fd77f99 | 2314 | if (!s.target) { |
c2abccec MK |
2315 | ret = -1; |
2316 | goto out; | |
2317 | } | |
9fd77f99 | 2318 | out_bs = blk_bs(s.target); |
ea2384d3 | 2319 | |
305b4c60 DB |
2320 | if (s.compressed && !out_bs->drv->bdrv_co_pwritev_compressed) { |
2321 | error_report("Compression not supported for this file format"); | |
2322 | ret = -1; | |
2323 | goto out; | |
2324 | } | |
2325 | ||
5def6b80 | 2326 | /* increase bufsectors from the default 4096 (2M) if opt_transfer |
f2521c90 PL |
2327 | * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB) |
2328 | * as maximum. */ | |
9fd77f99 PL |
2329 | s.buf_sectors = MIN(32768, |
2330 | MAX(s.buf_sectors, | |
2331 | MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS, | |
2332 | out_bs->bl.pdiscard_alignment >> | |
2333 | BDRV_SECTOR_BITS))); | |
f2521c90 | 2334 | |
b2e10493 | 2335 | if (skip_create) { |
9fd77f99 | 2336 | int64_t output_sectors = blk_nb_sectors(s.target); |
43716fa8 | 2337 | if (output_sectors < 0) { |
eec5eb42 | 2338 | error_report("unable to get output image length: %s", |
43716fa8 | 2339 | strerror(-output_sectors)); |
b2e10493 AD |
2340 | ret = -1; |
2341 | goto out; | |
9fd77f99 | 2342 | } else if (output_sectors < s.total_sectors) { |
b2e10493 AD |
2343 | error_report("output file is smaller than input file"); |
2344 | ret = -1; | |
2345 | goto out; | |
2346 | } | |
2347 | } | |
2348 | ||
24f833cd PL |
2349 | ret = bdrv_get_info(out_bs, &bdi); |
2350 | if (ret < 0) { | |
9fd77f99 | 2351 | if (s.compressed) { |
15654a6d | 2352 | error_report("could not get block driver info"); |
c2abccec MK |
2353 | goto out; |
2354 | } | |
24f833cd | 2355 | } else { |
9fd77f99 PL |
2356 | s.compressed = s.compressed || bdi.needs_compressed_writes; |
2357 | s.cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE; | |
2358 | } | |
802c3d4c | 2359 | |
9fd77f99 | 2360 | ret = convert_do_copy(&s); |
c2abccec | 2361 | out: |
13c28af8 PL |
2362 | if (!ret) { |
2363 | qemu_progress_print(100, 0); | |
2364 | } | |
6b837bc4 | 2365 | qemu_progress_end(); |
83d0521a CL |
2366 | qemu_opts_del(opts); |
2367 | qemu_opts_free(create_opts); | |
fbf28a43 | 2368 | qemu_opts_del(sn_opts); |
9fd77f99 PL |
2369 | blk_unref(s.target); |
2370 | if (s.src) { | |
2371 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { | |
2372 | blk_unref(s.src[bs_i]); | |
26f54e9a | 2373 | } |
9fd77f99 | 2374 | g_free(s.src); |
26f54e9a | 2375 | } |
9fd77f99 | 2376 | g_free(s.src_sectors); |
64bb01aa KW |
2377 | fail_getopt: |
2378 | g_free(options); | |
2379 | ||
9fd77f99 | 2380 | return !!ret; |
ea2384d3 FB |
2381 | } |
2382 | ||
57d1a2b6 | 2383 | |
faea38e7 FB |
2384 | static void dump_snapshots(BlockDriverState *bs) |
2385 | { | |
2386 | QEMUSnapshotInfo *sn_tab, *sn; | |
2387 | int nb_sns, i; | |
faea38e7 FB |
2388 | |
2389 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); | |
2390 | if (nb_sns <= 0) | |
2391 | return; | |
2392 | printf("Snapshot list:\n"); | |
5b917044 WX |
2393 | bdrv_snapshot_dump(fprintf, stdout, NULL); |
2394 | printf("\n"); | |
faea38e7 FB |
2395 | for(i = 0; i < nb_sns; i++) { |
2396 | sn = &sn_tab[i]; | |
5b917044 WX |
2397 | bdrv_snapshot_dump(fprintf, stdout, sn); |
2398 | printf("\n"); | |
faea38e7 | 2399 | } |
7267c094 | 2400 | g_free(sn_tab); |
faea38e7 FB |
2401 | } |
2402 | ||
9699bf0d SH |
2403 | static void dump_json_image_info_list(ImageInfoList *list) |
2404 | { | |
9699bf0d | 2405 | QString *str; |
9699bf0d | 2406 | QObject *obj; |
7d5e199a | 2407 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2408 | |
2409 | visit_type_ImageInfoList(v, NULL, &list, &error_abort); | |
2410 | visit_complete(v, &obj); | |
9699bf0d SH |
2411 | str = qobject_to_json_pretty(obj); |
2412 | assert(str != NULL); | |
2413 | printf("%s\n", qstring_get_str(str)); | |
2414 | qobject_decref(obj); | |
3b098d56 | 2415 | visit_free(v); |
9699bf0d SH |
2416 | QDECREF(str); |
2417 | } | |
2418 | ||
c054b3fd BC |
2419 | static void dump_json_image_info(ImageInfo *info) |
2420 | { | |
c054b3fd | 2421 | QString *str; |
c054b3fd | 2422 | QObject *obj; |
7d5e199a | 2423 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2424 | |
2425 | visit_type_ImageInfo(v, NULL, &info, &error_abort); | |
2426 | visit_complete(v, &obj); | |
c054b3fd BC |
2427 | str = qobject_to_json_pretty(obj); |
2428 | assert(str != NULL); | |
2429 | printf("%s\n", qstring_get_str(str)); | |
2430 | qobject_decref(obj); | |
3b098d56 | 2431 | visit_free(v); |
c054b3fd BC |
2432 | QDECREF(str); |
2433 | } | |
2434 | ||
9699bf0d SH |
2435 | static void dump_human_image_info_list(ImageInfoList *list) |
2436 | { | |
2437 | ImageInfoList *elem; | |
2438 | bool delim = false; | |
2439 | ||
2440 | for (elem = list; elem; elem = elem->next) { | |
2441 | if (delim) { | |
2442 | printf("\n"); | |
2443 | } | |
2444 | delim = true; | |
2445 | ||
5b917044 | 2446 | bdrv_image_info_dump(fprintf, stdout, elem->value); |
9699bf0d SH |
2447 | } |
2448 | } | |
2449 | ||
2450 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) | |
2451 | { | |
2452 | return strcmp(a, b) == 0; | |
2453 | } | |
2454 | ||
2455 | /** | |
2456 | * Open an image file chain and return an ImageInfoList | |
2457 | * | |
2458 | * @filename: topmost image filename | |
2459 | * @fmt: topmost image format (may be NULL to autodetect) | |
2460 | * @chain: true - enumerate entire backing file chain | |
2461 | * false - only topmost image file | |
2462 | * | |
2463 | * Returns a list of ImageInfo objects or NULL if there was an error opening an | |
2464 | * image file. If there was an error a message will have been printed to | |
2465 | * stderr. | |
2466 | */ | |
eb769f74 DB |
2467 | static ImageInfoList *collect_image_info_list(bool image_opts, |
2468 | const char *filename, | |
9699bf0d | 2469 | const char *fmt, |
335e9937 | 2470 | bool chain, bool force_share) |
9699bf0d SH |
2471 | { |
2472 | ImageInfoList *head = NULL; | |
2473 | ImageInfoList **last = &head; | |
2474 | GHashTable *filenames; | |
43526ec8 | 2475 | Error *err = NULL; |
9699bf0d SH |
2476 | |
2477 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); | |
2478 | ||
2479 | while (filename) { | |
26f54e9a | 2480 | BlockBackend *blk; |
9699bf0d SH |
2481 | BlockDriverState *bs; |
2482 | ImageInfo *info; | |
2483 | ImageInfoList *elem; | |
2484 | ||
2485 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { | |
2486 | error_report("Backing file '%s' creates an infinite loop.", | |
2487 | filename); | |
2488 | goto err; | |
2489 | } | |
2490 | g_hash_table_insert(filenames, (gpointer)filename, NULL); | |
2491 | ||
efaa7c4e | 2492 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
2493 | BDRV_O_NO_BACKING | BDRV_O_NO_IO, false, false, |
2494 | force_share); | |
7e7d56d9 | 2495 | if (!blk) { |
9699bf0d SH |
2496 | goto err; |
2497 | } | |
7e7d56d9 | 2498 | bs = blk_bs(blk); |
9699bf0d | 2499 | |
43526ec8 | 2500 | bdrv_query_image_info(bs, &info, &err); |
84d18f06 | 2501 | if (err) { |
565f65d2 | 2502 | error_report_err(err); |
26f54e9a | 2503 | blk_unref(blk); |
43526ec8 | 2504 | goto err; |
fb0ed453 | 2505 | } |
9699bf0d SH |
2506 | |
2507 | elem = g_new0(ImageInfoList, 1); | |
2508 | elem->value = info; | |
2509 | *last = elem; | |
2510 | last = &elem->next; | |
2511 | ||
26f54e9a | 2512 | blk_unref(blk); |
9699bf0d SH |
2513 | |
2514 | filename = fmt = NULL; | |
2515 | if (chain) { | |
2516 | if (info->has_full_backing_filename) { | |
2517 | filename = info->full_backing_filename; | |
2518 | } else if (info->has_backing_filename) { | |
92d617ab JS |
2519 | error_report("Could not determine absolute backing filename," |
2520 | " but backing filename '%s' present", | |
2521 | info->backing_filename); | |
2522 | goto err; | |
9699bf0d SH |
2523 | } |
2524 | if (info->has_backing_filename_format) { | |
2525 | fmt = info->backing_filename_format; | |
2526 | } | |
2527 | } | |
2528 | } | |
2529 | g_hash_table_destroy(filenames); | |
2530 | return head; | |
2531 | ||
2532 | err: | |
2533 | qapi_free_ImageInfoList(head); | |
2534 | g_hash_table_destroy(filenames); | |
2535 | return NULL; | |
2536 | } | |
2537 | ||
c054b3fd BC |
2538 | static int img_info(int argc, char **argv) |
2539 | { | |
2540 | int c; | |
2541 | OutputFormat output_format = OFORMAT_HUMAN; | |
9699bf0d | 2542 | bool chain = false; |
c054b3fd | 2543 | const char *filename, *fmt, *output; |
9699bf0d | 2544 | ImageInfoList *list; |
eb769f74 | 2545 | bool image_opts = false; |
335e9937 | 2546 | bool force_share = false; |
c054b3fd | 2547 | |
ea2384d3 | 2548 | fmt = NULL; |
c054b3fd | 2549 | output = NULL; |
ea2384d3 | 2550 | for(;;) { |
c054b3fd BC |
2551 | int option_index = 0; |
2552 | static const struct option long_options[] = { | |
2553 | {"help", no_argument, 0, 'h'}, | |
2554 | {"format", required_argument, 0, 'f'}, | |
2555 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
9699bf0d | 2556 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
3babeb15 | 2557 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 2558 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2559 | {"force-share", no_argument, 0, 'U'}, |
c054b3fd BC |
2560 | {0, 0, 0, 0} |
2561 | }; | |
335e9937 | 2562 | c = getopt_long(argc, argv, ":f:hU", |
c054b3fd | 2563 | long_options, &option_index); |
b8fb60da | 2564 | if (c == -1) { |
ea2384d3 | 2565 | break; |
b8fb60da | 2566 | } |
ea2384d3 | 2567 | switch(c) { |
c9192973 SH |
2568 | case ':': |
2569 | missing_argument(argv[optind - 1]); | |
2570 | break; | |
ef87394c | 2571 | case '?': |
c9192973 SH |
2572 | unrecognized_option(argv[optind - 1]); |
2573 | break; | |
ea2384d3 FB |
2574 | case 'h': |
2575 | help(); | |
2576 | break; | |
2577 | case 'f': | |
2578 | fmt = optarg; | |
2579 | break; | |
335e9937 FZ |
2580 | case 'U': |
2581 | force_share = true; | |
2582 | break; | |
c054b3fd BC |
2583 | case OPTION_OUTPUT: |
2584 | output = optarg; | |
2585 | break; | |
9699bf0d SH |
2586 | case OPTION_BACKING_CHAIN: |
2587 | chain = true; | |
2588 | break; | |
3babeb15 DB |
2589 | case OPTION_OBJECT: { |
2590 | QemuOpts *opts; | |
2591 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2592 | optarg, true); | |
2593 | if (!opts) { | |
2594 | return 1; | |
2595 | } | |
2596 | } break; | |
eb769f74 DB |
2597 | case OPTION_IMAGE_OPTS: |
2598 | image_opts = true; | |
2599 | break; | |
ea2384d3 FB |
2600 | } |
2601 | } | |
fc11eb26 | 2602 | if (optind != argc - 1) { |
ac1307ab | 2603 | error_exit("Expecting one image file name"); |
b8fb60da | 2604 | } |
ea2384d3 FB |
2605 | filename = argv[optind++]; |
2606 | ||
c054b3fd BC |
2607 | if (output && !strcmp(output, "json")) { |
2608 | output_format = OFORMAT_JSON; | |
2609 | } else if (output && !strcmp(output, "human")) { | |
2610 | output_format = OFORMAT_HUMAN; | |
2611 | } else if (output) { | |
2612 | error_report("--output must be used with human or json as argument."); | |
c2abccec MK |
2613 | return 1; |
2614 | } | |
c054b3fd | 2615 | |
3babeb15 DB |
2616 | if (qemu_opts_foreach(&qemu_object_opts, |
2617 | user_creatable_add_opts_foreach, | |
51b9b478 | 2618 | NULL, NULL)) { |
3babeb15 DB |
2619 | return 1; |
2620 | } | |
2621 | ||
335e9937 FZ |
2622 | list = collect_image_info_list(image_opts, filename, fmt, chain, |
2623 | force_share); | |
9699bf0d | 2624 | if (!list) { |
c2abccec | 2625 | return 1; |
faea38e7 | 2626 | } |
c054b3fd | 2627 | |
c054b3fd BC |
2628 | switch (output_format) { |
2629 | case OFORMAT_HUMAN: | |
9699bf0d | 2630 | dump_human_image_info_list(list); |
c054b3fd BC |
2631 | break; |
2632 | case OFORMAT_JSON: | |
9699bf0d SH |
2633 | if (chain) { |
2634 | dump_json_image_info_list(list); | |
2635 | } else { | |
2636 | dump_json_image_info(list->value); | |
2637 | } | |
c054b3fd | 2638 | break; |
faea38e7 | 2639 | } |
c054b3fd | 2640 | |
9699bf0d | 2641 | qapi_free_ImageInfoList(list); |
ea2384d3 FB |
2642 | return 0; |
2643 | } | |
2644 | ||
4c93a13b PB |
2645 | static void dump_map_entry(OutputFormat output_format, MapEntry *e, |
2646 | MapEntry *next) | |
2647 | { | |
2648 | switch (output_format) { | |
2649 | case OFORMAT_HUMAN: | |
16b0d555 | 2650 | if (e->data && !e->has_offset) { |
4c93a13b PB |
2651 | error_report("File contains external, encrypted or compressed clusters."); |
2652 | exit(1); | |
2653 | } | |
16b0d555 | 2654 | if (e->data && !e->zero) { |
4c93a13b | 2655 | printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", |
16b0d555 FZ |
2656 | e->start, e->length, |
2657 | e->has_offset ? e->offset : 0, | |
2658 | e->has_filename ? e->filename : ""); | |
4c93a13b PB |
2659 | } |
2660 | /* This format ignores the distinction between 0, ZERO and ZERO|DATA. | |
2661 | * Modify the flags here to allow more coalescing. | |
2662 | */ | |
16b0d555 FZ |
2663 | if (next && (!next->data || next->zero)) { |
2664 | next->data = false; | |
2665 | next->zero = true; | |
4c93a13b PB |
2666 | } |
2667 | break; | |
2668 | case OFORMAT_JSON: | |
16b0d555 FZ |
2669 | printf("%s{ \"start\": %"PRId64", \"length\": %"PRId64"," |
2670 | " \"depth\": %"PRId64", \"zero\": %s, \"data\": %s", | |
4c93a13b PB |
2671 | (e->start == 0 ? "[" : ",\n"), |
2672 | e->start, e->length, e->depth, | |
16b0d555 FZ |
2673 | e->zero ? "true" : "false", |
2674 | e->data ? "true" : "false"); | |
2675 | if (e->has_offset) { | |
c745bfb4 | 2676 | printf(", \"offset\": %"PRId64"", e->offset); |
4c93a13b PB |
2677 | } |
2678 | putchar('}'); | |
2679 | ||
2680 | if (!next) { | |
2681 | printf("]\n"); | |
2682 | } | |
2683 | break; | |
2684 | } | |
2685 | } | |
2686 | ||
5e344dd8 EB |
2687 | static int get_block_status(BlockDriverState *bs, int64_t offset, |
2688 | int64_t bytes, MapEntry *e) | |
4c93a13b | 2689 | { |
237d78f8 | 2690 | int ret; |
4c93a13b | 2691 | int depth; |
67a0fd2a | 2692 | BlockDriverState *file; |
2875645b | 2693 | bool has_offset; |
237d78f8 | 2694 | int64_t map; |
4c93a13b PB |
2695 | |
2696 | /* As an optimization, we could cache the current range of unallocated | |
2697 | * clusters in each file of the chain, and avoid querying the same | |
2698 | * range repeatedly. | |
2699 | */ | |
2700 | ||
2701 | depth = 0; | |
2702 | for (;;) { | |
237d78f8 | 2703 | ret = bdrv_block_status(bs, offset, bytes, &bytes, &map, &file); |
4c93a13b PB |
2704 | if (ret < 0) { |
2705 | return ret; | |
2706 | } | |
237d78f8 | 2707 | assert(bytes); |
4c93a13b PB |
2708 | if (ret & (BDRV_BLOCK_ZERO|BDRV_BLOCK_DATA)) { |
2709 | break; | |
2710 | } | |
760e0063 | 2711 | bs = backing_bs(bs); |
4c93a13b PB |
2712 | if (bs == NULL) { |
2713 | ret = 0; | |
2714 | break; | |
2715 | } | |
2716 | ||
2717 | depth++; | |
2718 | } | |
2719 | ||
2875645b JS |
2720 | has_offset = !!(ret & BDRV_BLOCK_OFFSET_VALID); |
2721 | ||
2722 | *e = (MapEntry) { | |
5e344dd8 | 2723 | .start = offset, |
237d78f8 | 2724 | .length = bytes, |
2875645b JS |
2725 | .data = !!(ret & BDRV_BLOCK_DATA), |
2726 | .zero = !!(ret & BDRV_BLOCK_ZERO), | |
237d78f8 | 2727 | .offset = map, |
2875645b JS |
2728 | .has_offset = has_offset, |
2729 | .depth = depth, | |
2730 | .has_filename = file && has_offset, | |
2731 | .filename = file && has_offset ? file->filename : NULL, | |
2732 | }; | |
2733 | ||
4c93a13b PB |
2734 | return 0; |
2735 | } | |
2736 | ||
16b0d555 FZ |
2737 | static inline bool entry_mergeable(const MapEntry *curr, const MapEntry *next) |
2738 | { | |
2739 | if (curr->length == 0) { | |
2740 | return false; | |
2741 | } | |
2742 | if (curr->zero != next->zero || | |
2743 | curr->data != next->data || | |
2744 | curr->depth != next->depth || | |
2745 | curr->has_filename != next->has_filename || | |
2746 | curr->has_offset != next->has_offset) { | |
2747 | return false; | |
2748 | } | |
2749 | if (curr->has_filename && strcmp(curr->filename, next->filename)) { | |
2750 | return false; | |
2751 | } | |
2752 | if (curr->has_offset && curr->offset + curr->length != next->offset) { | |
2753 | return false; | |
2754 | } | |
2755 | return true; | |
2756 | } | |
2757 | ||
4c93a13b PB |
2758 | static int img_map(int argc, char **argv) |
2759 | { | |
2760 | int c; | |
2761 | OutputFormat output_format = OFORMAT_HUMAN; | |
26f54e9a | 2762 | BlockBackend *blk; |
4c93a13b PB |
2763 | BlockDriverState *bs; |
2764 | const char *filename, *fmt, *output; | |
2765 | int64_t length; | |
2766 | MapEntry curr = { .length = 0 }, next; | |
2767 | int ret = 0; | |
eb769f74 | 2768 | bool image_opts = false; |
335e9937 | 2769 | bool force_share = false; |
4c93a13b PB |
2770 | |
2771 | fmt = NULL; | |
2772 | output = NULL; | |
2773 | for (;;) { | |
2774 | int option_index = 0; | |
2775 | static const struct option long_options[] = { | |
2776 | {"help", no_argument, 0, 'h'}, | |
2777 | {"format", required_argument, 0, 'f'}, | |
2778 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
3babeb15 | 2779 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 2780 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2781 | {"force-share", no_argument, 0, 'U'}, |
4c93a13b PB |
2782 | {0, 0, 0, 0} |
2783 | }; | |
335e9937 | 2784 | c = getopt_long(argc, argv, ":f:hU", |
4c93a13b PB |
2785 | long_options, &option_index); |
2786 | if (c == -1) { | |
2787 | break; | |
2788 | } | |
2789 | switch (c) { | |
c9192973 SH |
2790 | case ':': |
2791 | missing_argument(argv[optind - 1]); | |
2792 | break; | |
4c93a13b | 2793 | case '?': |
c9192973 SH |
2794 | unrecognized_option(argv[optind - 1]); |
2795 | break; | |
4c93a13b PB |
2796 | case 'h': |
2797 | help(); | |
2798 | break; | |
2799 | case 'f': | |
2800 | fmt = optarg; | |
2801 | break; | |
335e9937 FZ |
2802 | case 'U': |
2803 | force_share = true; | |
2804 | break; | |
4c93a13b PB |
2805 | case OPTION_OUTPUT: |
2806 | output = optarg; | |
2807 | break; | |
3babeb15 DB |
2808 | case OPTION_OBJECT: { |
2809 | QemuOpts *opts; | |
2810 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2811 | optarg, true); | |
2812 | if (!opts) { | |
2813 | return 1; | |
2814 | } | |
2815 | } break; | |
eb769f74 DB |
2816 | case OPTION_IMAGE_OPTS: |
2817 | image_opts = true; | |
2818 | break; | |
4c93a13b PB |
2819 | } |
2820 | } | |
ac1307ab FZ |
2821 | if (optind != argc - 1) { |
2822 | error_exit("Expecting one image file name"); | |
4c93a13b | 2823 | } |
ac1307ab | 2824 | filename = argv[optind]; |
4c93a13b PB |
2825 | |
2826 | if (output && !strcmp(output, "json")) { | |
2827 | output_format = OFORMAT_JSON; | |
2828 | } else if (output && !strcmp(output, "human")) { | |
2829 | output_format = OFORMAT_HUMAN; | |
2830 | } else if (output) { | |
2831 | error_report("--output must be used with human or json as argument."); | |
2832 | return 1; | |
2833 | } | |
2834 | ||
3babeb15 DB |
2835 | if (qemu_opts_foreach(&qemu_object_opts, |
2836 | user_creatable_add_opts_foreach, | |
51b9b478 | 2837 | NULL, NULL)) { |
3babeb15 DB |
2838 | return 1; |
2839 | } | |
2840 | ||
335e9937 | 2841 | blk = img_open(image_opts, filename, fmt, 0, false, false, force_share); |
7e7d56d9 MA |
2842 | if (!blk) { |
2843 | return 1; | |
4c93a13b | 2844 | } |
7e7d56d9 | 2845 | bs = blk_bs(blk); |
4c93a13b PB |
2846 | |
2847 | if (output_format == OFORMAT_HUMAN) { | |
2848 | printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File"); | |
2849 | } | |
2850 | ||
f1d3cd79 | 2851 | length = blk_getlength(blk); |
4c93a13b | 2852 | while (curr.start + curr.length < length) { |
5e344dd8 EB |
2853 | int64_t offset = curr.start + curr.length; |
2854 | int64_t n; | |
4c93a13b PB |
2855 | |
2856 | /* Probe up to 1 GiB at a time. */ | |
5e344dd8 EB |
2857 | n = QEMU_ALIGN_DOWN(MIN(1 << 30, length - offset), BDRV_SECTOR_SIZE); |
2858 | ret = get_block_status(bs, offset, n, &next); | |
4c93a13b PB |
2859 | |
2860 | if (ret < 0) { | |
2861 | error_report("Could not read file metadata: %s", strerror(-ret)); | |
2862 | goto out; | |
2863 | } | |
2864 | ||
16b0d555 | 2865 | if (entry_mergeable(&curr, &next)) { |
4c93a13b PB |
2866 | curr.length += next.length; |
2867 | continue; | |
2868 | } | |
2869 | ||
2870 | if (curr.length > 0) { | |
2871 | dump_map_entry(output_format, &curr, &next); | |
2872 | } | |
2873 | curr = next; | |
2874 | } | |
2875 | ||
2876 | dump_map_entry(output_format, &curr, NULL); | |
2877 | ||
2878 | out: | |
26f54e9a | 2879 | blk_unref(blk); |
4c93a13b PB |
2880 | return ret < 0; |
2881 | } | |
2882 | ||
f7b4a940 AL |
2883 | #define SNAPSHOT_LIST 1 |
2884 | #define SNAPSHOT_CREATE 2 | |
2885 | #define SNAPSHOT_APPLY 3 | |
2886 | #define SNAPSHOT_DELETE 4 | |
2887 | ||
153859be | 2888 | static int img_snapshot(int argc, char **argv) |
f7b4a940 | 2889 | { |
26f54e9a | 2890 | BlockBackend *blk; |
f7b4a940 AL |
2891 | BlockDriverState *bs; |
2892 | QEMUSnapshotInfo sn; | |
2893 | char *filename, *snapshot_name = NULL; | |
c2abccec | 2894 | int c, ret = 0, bdrv_oflags; |
f7b4a940 AL |
2895 | int action = 0; |
2896 | qemu_timeval tv; | |
f382d43a | 2897 | bool quiet = false; |
a89d89d3 | 2898 | Error *err = NULL; |
eb769f74 | 2899 | bool image_opts = false; |
335e9937 | 2900 | bool force_share = false; |
f7b4a940 | 2901 | |
ce099547 | 2902 | bdrv_oflags = BDRV_O_RDWR; |
f7b4a940 AL |
2903 | /* Parse commandline parameters */ |
2904 | for(;;) { | |
3babeb15 DB |
2905 | static const struct option long_options[] = { |
2906 | {"help", no_argument, 0, 'h'}, | |
2907 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 2908 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2909 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
2910 | {0, 0, 0, 0} |
2911 | }; | |
335e9937 | 2912 | c = getopt_long(argc, argv, ":la:c:d:hqU", |
3babeb15 | 2913 | long_options, NULL); |
b8fb60da | 2914 | if (c == -1) { |
f7b4a940 | 2915 | break; |
b8fb60da | 2916 | } |
f7b4a940 | 2917 | switch(c) { |
c9192973 SH |
2918 | case ':': |
2919 | missing_argument(argv[optind - 1]); | |
2920 | break; | |
ef87394c | 2921 | case '?': |
c9192973 SH |
2922 | unrecognized_option(argv[optind - 1]); |
2923 | break; | |
f7b4a940 AL |
2924 | case 'h': |
2925 | help(); | |
153859be | 2926 | return 0; |
f7b4a940 AL |
2927 | case 'l': |
2928 | if (action) { | |
ac1307ab | 2929 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2930 | return 0; |
f7b4a940 AL |
2931 | } |
2932 | action = SNAPSHOT_LIST; | |
f5edb014 | 2933 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
f7b4a940 AL |
2934 | break; |
2935 | case 'a': | |
2936 | if (action) { | |
ac1307ab | 2937 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2938 | return 0; |
f7b4a940 AL |
2939 | } |
2940 | action = SNAPSHOT_APPLY; | |
2941 | snapshot_name = optarg; | |
2942 | break; | |
2943 | case 'c': | |
2944 | if (action) { | |
ac1307ab | 2945 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2946 | return 0; |
f7b4a940 AL |
2947 | } |
2948 | action = SNAPSHOT_CREATE; | |
2949 | snapshot_name = optarg; | |
2950 | break; | |
2951 | case 'd': | |
2952 | if (action) { | |
ac1307ab | 2953 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2954 | return 0; |
f7b4a940 AL |
2955 | } |
2956 | action = SNAPSHOT_DELETE; | |
2957 | snapshot_name = optarg; | |
2958 | break; | |
f382d43a MR |
2959 | case 'q': |
2960 | quiet = true; | |
2961 | break; | |
335e9937 FZ |
2962 | case 'U': |
2963 | force_share = true; | |
2964 | break; | |
3babeb15 DB |
2965 | case OPTION_OBJECT: { |
2966 | QemuOpts *opts; | |
2967 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2968 | optarg, true); | |
2969 | if (!opts) { | |
2970 | return 1; | |
2971 | } | |
2972 | } break; | |
eb769f74 DB |
2973 | case OPTION_IMAGE_OPTS: |
2974 | image_opts = true; | |
2975 | break; | |
f7b4a940 AL |
2976 | } |
2977 | } | |
2978 | ||
fc11eb26 | 2979 | if (optind != argc - 1) { |
ac1307ab | 2980 | error_exit("Expecting one image file name"); |
b8fb60da | 2981 | } |
f7b4a940 AL |
2982 | filename = argv[optind++]; |
2983 | ||
3babeb15 DB |
2984 | if (qemu_opts_foreach(&qemu_object_opts, |
2985 | user_creatable_add_opts_foreach, | |
51b9b478 | 2986 | NULL, NULL)) { |
3babeb15 DB |
2987 | return 1; |
2988 | } | |
2989 | ||
f7b4a940 | 2990 | /* Open the image */ |
335e9937 FZ |
2991 | blk = img_open(image_opts, filename, NULL, bdrv_oflags, false, quiet, |
2992 | force_share); | |
7e7d56d9 MA |
2993 | if (!blk) { |
2994 | return 1; | |
c2abccec | 2995 | } |
7e7d56d9 | 2996 | bs = blk_bs(blk); |
f7b4a940 AL |
2997 | |
2998 | /* Perform the requested action */ | |
2999 | switch(action) { | |
3000 | case SNAPSHOT_LIST: | |
3001 | dump_snapshots(bs); | |
3002 | break; | |
3003 | ||
3004 | case SNAPSHOT_CREATE: | |
3005 | memset(&sn, 0, sizeof(sn)); | |
3006 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); | |
3007 | ||
3008 | qemu_gettimeofday(&tv); | |
3009 | sn.date_sec = tv.tv_sec; | |
3010 | sn.date_nsec = tv.tv_usec * 1000; | |
3011 | ||
3012 | ret = bdrv_snapshot_create(bs, &sn); | |
b8fb60da | 3013 | if (ret) { |
15654a6d | 3014 | error_report("Could not create snapshot '%s': %d (%s)", |
f7b4a940 | 3015 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 3016 | } |
f7b4a940 AL |
3017 | break; |
3018 | ||
3019 | case SNAPSHOT_APPLY: | |
3020 | ret = bdrv_snapshot_goto(bs, snapshot_name); | |
b8fb60da | 3021 | if (ret) { |
15654a6d | 3022 | error_report("Could not apply snapshot '%s': %d (%s)", |
f7b4a940 | 3023 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 3024 | } |
f7b4a940 AL |
3025 | break; |
3026 | ||
3027 | case SNAPSHOT_DELETE: | |
a89d89d3 | 3028 | bdrv_snapshot_delete_by_id_or_name(bs, snapshot_name, &err); |
84d18f06 | 3029 | if (err) { |
c29b77f9 MA |
3030 | error_reportf_err(err, "Could not delete snapshot '%s': ", |
3031 | snapshot_name); | |
a89d89d3 | 3032 | ret = 1; |
b8fb60da | 3033 | } |
f7b4a940 AL |
3034 | break; |
3035 | } | |
3036 | ||
3037 | /* Cleanup */ | |
26f54e9a | 3038 | blk_unref(blk); |
c2abccec MK |
3039 | if (ret) { |
3040 | return 1; | |
3041 | } | |
153859be | 3042 | return 0; |
f7b4a940 AL |
3043 | } |
3044 | ||
3e85c6fd KW |
3045 | static int img_rebase(int argc, char **argv) |
3046 | { | |
26f54e9a | 3047 | BlockBackend *blk = NULL, *blk_old_backing = NULL, *blk_new_backing = NULL; |
396374ca PB |
3048 | uint8_t *buf_old = NULL; |
3049 | uint8_t *buf_new = NULL; | |
f1d3cd79 | 3050 | BlockDriverState *bs = NULL; |
3e85c6fd | 3051 | char *filename; |
40055951 HR |
3052 | const char *fmt, *cache, *src_cache, *out_basefmt, *out_baseimg; |
3053 | int c, flags, src_flags, ret; | |
ce099547 | 3054 | bool writethrough, src_writethrough; |
3e85c6fd | 3055 | int unsafe = 0; |
335e9937 | 3056 | bool force_share = false; |
6b837bc4 | 3057 | int progress = 0; |
f382d43a | 3058 | bool quiet = false; |
34b5d2c6 | 3059 | Error *local_err = NULL; |
eb769f74 | 3060 | bool image_opts = false; |
3e85c6fd KW |
3061 | |
3062 | /* Parse commandline parameters */ | |
e53dbee0 | 3063 | fmt = NULL; |
661a0f71 | 3064 | cache = BDRV_DEFAULT_CACHE; |
40055951 | 3065 | src_cache = BDRV_DEFAULT_CACHE; |
3e85c6fd KW |
3066 | out_baseimg = NULL; |
3067 | out_basefmt = NULL; | |
3e85c6fd | 3068 | for(;;) { |
3babeb15 DB |
3069 | static const struct option long_options[] = { |
3070 | {"help", no_argument, 0, 'h'}, | |
3071 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3072 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 3073 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
3074 | {0, 0, 0, 0} |
3075 | }; | |
335e9937 | 3076 | c = getopt_long(argc, argv, ":hf:F:b:upt:T:qU", |
3babeb15 | 3077 | long_options, NULL); |
b8fb60da | 3078 | if (c == -1) { |
3e85c6fd | 3079 | break; |
b8fb60da | 3080 | } |
3e85c6fd | 3081 | switch(c) { |
c9192973 SH |
3082 | case ':': |
3083 | missing_argument(argv[optind - 1]); | |
3084 | break; | |
ef87394c | 3085 | case '?': |
c9192973 SH |
3086 | unrecognized_option(argv[optind - 1]); |
3087 | break; | |
3e85c6fd KW |
3088 | case 'h': |
3089 | help(); | |
3090 | return 0; | |
e53dbee0 KW |
3091 | case 'f': |
3092 | fmt = optarg; | |
3093 | break; | |
3e85c6fd KW |
3094 | case 'F': |
3095 | out_basefmt = optarg; | |
3096 | break; | |
3097 | case 'b': | |
3098 | out_baseimg = optarg; | |
3099 | break; | |
3100 | case 'u': | |
3101 | unsafe = 1; | |
3102 | break; | |
6b837bc4 JS |
3103 | case 'p': |
3104 | progress = 1; | |
3105 | break; | |
661a0f71 FS |
3106 | case 't': |
3107 | cache = optarg; | |
3108 | break; | |
40055951 HR |
3109 | case 'T': |
3110 | src_cache = optarg; | |
3111 | break; | |
f382d43a MR |
3112 | case 'q': |
3113 | quiet = true; | |
3114 | break; | |
3babeb15 DB |
3115 | case OPTION_OBJECT: { |
3116 | QemuOpts *opts; | |
3117 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3118 | optarg, true); | |
3119 | if (!opts) { | |
3120 | return 1; | |
3121 | } | |
3122 | } break; | |
eb769f74 DB |
3123 | case OPTION_IMAGE_OPTS: |
3124 | image_opts = true; | |
3125 | break; | |
335e9937 FZ |
3126 | case 'U': |
3127 | force_share = true; | |
3128 | break; | |
3e85c6fd KW |
3129 | } |
3130 | } | |
3131 | ||
f382d43a MR |
3132 | if (quiet) { |
3133 | progress = 0; | |
3134 | } | |
3135 | ||
ac1307ab FZ |
3136 | if (optind != argc - 1) { |
3137 | error_exit("Expecting one image file name"); | |
3138 | } | |
3139 | if (!unsafe && !out_baseimg) { | |
3140 | error_exit("Must specify backing file (-b) or use unsafe mode (-u)"); | |
b8fb60da | 3141 | } |
3e85c6fd KW |
3142 | filename = argv[optind++]; |
3143 | ||
3babeb15 DB |
3144 | if (qemu_opts_foreach(&qemu_object_opts, |
3145 | user_creatable_add_opts_foreach, | |
51b9b478 | 3146 | NULL, NULL)) { |
3babeb15 DB |
3147 | return 1; |
3148 | } | |
3149 | ||
6b837bc4 JS |
3150 | qemu_progress_init(progress, 2.0); |
3151 | qemu_progress_print(0, 100); | |
3152 | ||
661a0f71 | 3153 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
ce099547 | 3154 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
3155 | if (ret < 0) { |
3156 | error_report("Invalid cache option: %s", cache); | |
40ed35a3 | 3157 | goto out; |
661a0f71 FS |
3158 | } |
3159 | ||
ce099547 KW |
3160 | src_flags = 0; |
3161 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); | |
40055951 HR |
3162 | if (ret < 0) { |
3163 | error_report("Invalid source cache option: %s", src_cache); | |
40ed35a3 | 3164 | goto out; |
40055951 HR |
3165 | } |
3166 | ||
ce099547 KW |
3167 | /* The source files are opened read-only, don't care about WCE */ |
3168 | assert((src_flags & BDRV_O_RDWR) == 0); | |
3169 | (void) src_writethrough; | |
3170 | ||
3e85c6fd KW |
3171 | /* |
3172 | * Open the images. | |
3173 | * | |
3174 | * Ignore the old backing file for unsafe rebase in case we want to correct | |
3175 | * the reference to a renamed or moved backing file. | |
3176 | */ | |
335e9937 FZ |
3177 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
3178 | false); | |
7e7d56d9 | 3179 | if (!blk) { |
40ed35a3 SH |
3180 | ret = -1; |
3181 | goto out; | |
c2abccec | 3182 | } |
7e7d56d9 | 3183 | bs = blk_bs(blk); |
3e85c6fd | 3184 | |
3e85c6fd | 3185 | if (out_basefmt != NULL) { |
644483d9 | 3186 | if (bdrv_find_format(out_basefmt) == NULL) { |
15654a6d | 3187 | error_report("Invalid format name: '%s'", out_basefmt); |
c2abccec MK |
3188 | ret = -1; |
3189 | goto out; | |
3e85c6fd KW |
3190 | } |
3191 | } | |
3192 | ||
3193 | /* For safe rebasing we need to compare old and new backing file */ | |
40ed35a3 | 3194 | if (!unsafe) { |
9a29e18f | 3195 | char backing_name[PATH_MAX]; |
644483d9 HR |
3196 | QDict *options = NULL; |
3197 | ||
3198 | if (bs->backing_format[0] != '\0') { | |
3199 | options = qdict_new(); | |
46f5ac20 | 3200 | qdict_put_str(options, "driver", bs->backing_format); |
644483d9 | 3201 | } |
3e85c6fd | 3202 | |
335e9937 FZ |
3203 | if (force_share) { |
3204 | if (!options) { | |
3205 | options = qdict_new(); | |
3206 | } | |
579cf1d1 | 3207 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 3208 | } |
3e85c6fd | 3209 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
efaa7c4e | 3210 | blk_old_backing = blk_new_open(backing_name, NULL, |
644483d9 HR |
3211 | options, src_flags, &local_err); |
3212 | if (!blk_old_backing) { | |
c29b77f9 MA |
3213 | error_reportf_err(local_err, |
3214 | "Could not open old backing file '%s': ", | |
3215 | backing_name); | |
e84a0dd5 | 3216 | ret = -1; |
c2abccec | 3217 | goto out; |
3e85c6fd | 3218 | } |
644483d9 | 3219 | |
a616673d | 3220 | if (out_baseimg[0]) { |
335e9937 | 3221 | options = qdict_new(); |
644483d9 | 3222 | if (out_basefmt) { |
46f5ac20 | 3223 | qdict_put_str(options, "driver", out_basefmt); |
335e9937 FZ |
3224 | } |
3225 | if (force_share) { | |
3226 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); | |
644483d9 HR |
3227 | } |
3228 | ||
efaa7c4e | 3229 | blk_new_backing = blk_new_open(out_baseimg, NULL, |
644483d9 HR |
3230 | options, src_flags, &local_err); |
3231 | if (!blk_new_backing) { | |
c29b77f9 MA |
3232 | error_reportf_err(local_err, |
3233 | "Could not open new backing file '%s': ", | |
3234 | out_baseimg); | |
e84a0dd5 | 3235 | ret = -1; |
a616673d AB |
3236 | goto out; |
3237 | } | |
3e85c6fd KW |
3238 | } |
3239 | } | |
3240 | ||
3241 | /* | |
3242 | * Check each unallocated cluster in the COW file. If it is unallocated, | |
3243 | * accesses go to the backing file. We must therefore compare this cluster | |
3244 | * in the old and new backing file, and if they differ we need to copy it | |
3245 | * from the old backing file into the COW file. | |
3246 | * | |
3247 | * If qemu-img crashes during this step, no harm is done. The content of | |
3248 | * the image is the same as the original one at any time. | |
3249 | */ | |
3250 | if (!unsafe) { | |
52bf1e72 MA |
3251 | int64_t num_sectors; |
3252 | int64_t old_backing_num_sectors; | |
3253 | int64_t new_backing_num_sectors = 0; | |
3e85c6fd | 3254 | uint64_t sector; |
cc60e327 | 3255 | int n; |
d6a644bb | 3256 | int64_t count; |
1f710495 | 3257 | float local_progress = 0; |
d6771bfa | 3258 | |
f1d3cd79 HR |
3259 | buf_old = blk_blockalign(blk, IO_BUF_SIZE); |
3260 | buf_new = blk_blockalign(blk, IO_BUF_SIZE); | |
3e85c6fd | 3261 | |
f1d3cd79 | 3262 | num_sectors = blk_nb_sectors(blk); |
52bf1e72 MA |
3263 | if (num_sectors < 0) { |
3264 | error_report("Could not get size of '%s': %s", | |
3265 | filename, strerror(-num_sectors)); | |
3266 | ret = -1; | |
3267 | goto out; | |
3268 | } | |
f1d3cd79 | 3269 | old_backing_num_sectors = blk_nb_sectors(blk_old_backing); |
52bf1e72 | 3270 | if (old_backing_num_sectors < 0) { |
9a29e18f | 3271 | char backing_name[PATH_MAX]; |
52bf1e72 MA |
3272 | |
3273 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); | |
3274 | error_report("Could not get size of '%s': %s", | |
3275 | backing_name, strerror(-old_backing_num_sectors)); | |
3276 | ret = -1; | |
3277 | goto out; | |
3278 | } | |
f1d3cd79 HR |
3279 | if (blk_new_backing) { |
3280 | new_backing_num_sectors = blk_nb_sectors(blk_new_backing); | |
52bf1e72 MA |
3281 | if (new_backing_num_sectors < 0) { |
3282 | error_report("Could not get size of '%s': %s", | |
3283 | out_baseimg, strerror(-new_backing_num_sectors)); | |
3284 | ret = -1; | |
3285 | goto out; | |
3286 | } | |
a616673d | 3287 | } |
3e85c6fd | 3288 | |
1f710495 KW |
3289 | if (num_sectors != 0) { |
3290 | local_progress = (float)100 / | |
3291 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); | |
3292 | } | |
3293 | ||
3e85c6fd KW |
3294 | for (sector = 0; sector < num_sectors; sector += n) { |
3295 | ||
3296 | /* How many sectors can we handle with the next read? */ | |
3297 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { | |
3298 | n = (IO_BUF_SIZE / 512); | |
3299 | } else { | |
3300 | n = num_sectors - sector; | |
3301 | } | |
3302 | ||
3303 | /* If the cluster is allocated, we don't need to take action */ | |
d6a644bb EB |
3304 | ret = bdrv_is_allocated(bs, sector << BDRV_SECTOR_BITS, |
3305 | n << BDRV_SECTOR_BITS, &count); | |
d663640c PB |
3306 | if (ret < 0) { |
3307 | error_report("error while reading image metadata: %s", | |
3308 | strerror(-ret)); | |
3309 | goto out; | |
3310 | } | |
d6a644bb EB |
3311 | /* TODO relax this once bdrv_is_allocated does not enforce |
3312 | * sector alignment */ | |
3313 | assert(QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)); | |
3314 | n = count >> BDRV_SECTOR_BITS; | |
cc60e327 | 3315 | if (ret) { |
3e85c6fd KW |
3316 | continue; |
3317 | } | |
3318 | ||
87a1b3e3 KW |
3319 | /* |
3320 | * Read old and new backing file and take into consideration that | |
3321 | * backing files may be smaller than the COW image. | |
3322 | */ | |
3323 | if (sector >= old_backing_num_sectors) { | |
3324 | memset(buf_old, 0, n * BDRV_SECTOR_SIZE); | |
3325 | } else { | |
3326 | if (sector + n > old_backing_num_sectors) { | |
3327 | n = old_backing_num_sectors - sector; | |
3328 | } | |
3329 | ||
9166920a EB |
3330 | ret = blk_pread(blk_old_backing, sector << BDRV_SECTOR_BITS, |
3331 | buf_old, n << BDRV_SECTOR_BITS); | |
87a1b3e3 KW |
3332 | if (ret < 0) { |
3333 | error_report("error while reading from old backing file"); | |
3334 | goto out; | |
3335 | } | |
3e85c6fd | 3336 | } |
87a1b3e3 | 3337 | |
f1d3cd79 | 3338 | if (sector >= new_backing_num_sectors || !blk_new_backing) { |
87a1b3e3 KW |
3339 | memset(buf_new, 0, n * BDRV_SECTOR_SIZE); |
3340 | } else { | |
3341 | if (sector + n > new_backing_num_sectors) { | |
3342 | n = new_backing_num_sectors - sector; | |
3343 | } | |
3344 | ||
9166920a EB |
3345 | ret = blk_pread(blk_new_backing, sector << BDRV_SECTOR_BITS, |
3346 | buf_new, n << BDRV_SECTOR_BITS); | |
87a1b3e3 KW |
3347 | if (ret < 0) { |
3348 | error_report("error while reading from new backing file"); | |
3349 | goto out; | |
3350 | } | |
3e85c6fd KW |
3351 | } |
3352 | ||
3353 | /* If they differ, we need to write to the COW file */ | |
3354 | uint64_t written = 0; | |
3355 | ||
dc61cd3b EB |
3356 | while (written < n * BDRV_SECTOR_SIZE) { |
3357 | int64_t pnum; | |
3e85c6fd | 3358 | |
dc61cd3b EB |
3359 | if (compare_buffers(buf_old + written, |
3360 | buf_new + written, | |
3361 | n * BDRV_SECTOR_SIZE - written, &pnum)) | |
3e85c6fd | 3362 | { |
9166920a | 3363 | ret = blk_pwrite(blk, |
dc61cd3b EB |
3364 | (sector << BDRV_SECTOR_BITS) + written, |
3365 | buf_old + written, pnum, 0); | |
3e85c6fd | 3366 | if (ret < 0) { |
15654a6d | 3367 | error_report("Error while writing to COW image: %s", |
3e85c6fd | 3368 | strerror(-ret)); |
c2abccec | 3369 | goto out; |
3e85c6fd KW |
3370 | } |
3371 | } | |
3372 | ||
3373 | written += pnum; | |
3374 | } | |
6b837bc4 | 3375 | qemu_progress_print(local_progress, 100); |
3e85c6fd KW |
3376 | } |
3377 | } | |
3378 | ||
3379 | /* | |
3380 | * Change the backing file. All clusters that are different from the old | |
3381 | * backing file are overwritten in the COW file now, so the visible content | |
3382 | * doesn't change when we switch the backing file. | |
3383 | */ | |
a616673d AB |
3384 | if (out_baseimg && *out_baseimg) { |
3385 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); | |
3386 | } else { | |
3387 | ret = bdrv_change_backing_file(bs, NULL, NULL); | |
3388 | } | |
3389 | ||
3e85c6fd | 3390 | if (ret == -ENOSPC) { |
15654a6d JS |
3391 | error_report("Could not change the backing file to '%s': No " |
3392 | "space left in the file header", out_baseimg); | |
3e85c6fd | 3393 | } else if (ret < 0) { |
15654a6d | 3394 | error_report("Could not change the backing file to '%s': %s", |
3e85c6fd KW |
3395 | out_baseimg, strerror(-ret)); |
3396 | } | |
3397 | ||
6b837bc4 | 3398 | qemu_progress_print(100, 0); |
3e85c6fd KW |
3399 | /* |
3400 | * TODO At this point it is possible to check if any clusters that are | |
3401 | * allocated in the COW file are the same in the backing file. If so, they | |
3402 | * could be dropped from the COW file. Don't do this before switching the | |
3403 | * backing file, in case of a crash this would lead to corruption. | |
3404 | */ | |
c2abccec | 3405 | out: |
6b837bc4 | 3406 | qemu_progress_end(); |
3e85c6fd KW |
3407 | /* Cleanup */ |
3408 | if (!unsafe) { | |
26f54e9a | 3409 | blk_unref(blk_old_backing); |
26f54e9a | 3410 | blk_unref(blk_new_backing); |
3e85c6fd | 3411 | } |
396374ca PB |
3412 | qemu_vfree(buf_old); |
3413 | qemu_vfree(buf_new); | |
3e85c6fd | 3414 | |
26f54e9a | 3415 | blk_unref(blk); |
c2abccec MK |
3416 | if (ret) { |
3417 | return 1; | |
3418 | } | |
3e85c6fd KW |
3419 | return 0; |
3420 | } | |
3421 | ||
ae6b0ed6 SH |
3422 | static int img_resize(int argc, char **argv) |
3423 | { | |
6750e795 | 3424 | Error *err = NULL; |
ae6b0ed6 SH |
3425 | int c, ret, relative; |
3426 | const char *filename, *fmt, *size; | |
dc5f690b | 3427 | int64_t n, total_size, current_size; |
f382d43a | 3428 | bool quiet = false; |
26f54e9a | 3429 | BlockBackend *blk = NULL; |
dc5f690b | 3430 | PreallocMode prealloc = PREALLOC_MODE_OFF; |
20caf0f7 | 3431 | QemuOpts *param; |
3babeb15 | 3432 | |
20caf0f7 DXW |
3433 | static QemuOptsList resize_options = { |
3434 | .name = "resize_options", | |
3435 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), | |
3436 | .desc = { | |
3437 | { | |
3438 | .name = BLOCK_OPT_SIZE, | |
3439 | .type = QEMU_OPT_SIZE, | |
3440 | .help = "Virtual disk size" | |
3441 | }, { | |
3442 | /* end of list */ | |
3443 | } | |
ae6b0ed6 | 3444 | }, |
ae6b0ed6 | 3445 | }; |
eb769f74 | 3446 | bool image_opts = false; |
4ffca890 | 3447 | bool shrink = false; |
ae6b0ed6 | 3448 | |
e80fec7f KW |
3449 | /* Remove size from argv manually so that negative numbers are not treated |
3450 | * as options by getopt. */ | |
3451 | if (argc < 3) { | |
ac1307ab | 3452 | error_exit("Not enough arguments"); |
e80fec7f KW |
3453 | return 1; |
3454 | } | |
3455 | ||
3456 | size = argv[--argc]; | |
3457 | ||
3458 | /* Parse getopt arguments */ | |
ae6b0ed6 SH |
3459 | fmt = NULL; |
3460 | for(;;) { | |
3babeb15 DB |
3461 | static const struct option long_options[] = { |
3462 | {"help", no_argument, 0, 'h'}, | |
3463 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3464 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
dc5f690b | 3465 | {"preallocation", required_argument, 0, OPTION_PREALLOCATION}, |
4ffca890 | 3466 | {"shrink", no_argument, 0, OPTION_SHRINK}, |
3babeb15 DB |
3467 | {0, 0, 0, 0} |
3468 | }; | |
c9192973 | 3469 | c = getopt_long(argc, argv, ":f:hq", |
3babeb15 | 3470 | long_options, NULL); |
ae6b0ed6 SH |
3471 | if (c == -1) { |
3472 | break; | |
3473 | } | |
3474 | switch(c) { | |
c9192973 SH |
3475 | case ':': |
3476 | missing_argument(argv[optind - 1]); | |
3477 | break; | |
ef87394c | 3478 | case '?': |
c9192973 SH |
3479 | unrecognized_option(argv[optind - 1]); |
3480 | break; | |
ae6b0ed6 SH |
3481 | case 'h': |
3482 | help(); | |
3483 | break; | |
3484 | case 'f': | |
3485 | fmt = optarg; | |
3486 | break; | |
f382d43a MR |
3487 | case 'q': |
3488 | quiet = true; | |
3489 | break; | |
3babeb15 DB |
3490 | case OPTION_OBJECT: { |
3491 | QemuOpts *opts; | |
3492 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3493 | optarg, true); | |
3494 | if (!opts) { | |
3495 | return 1; | |
3496 | } | |
3497 | } break; | |
eb769f74 DB |
3498 | case OPTION_IMAGE_OPTS: |
3499 | image_opts = true; | |
3500 | break; | |
dc5f690b | 3501 | case OPTION_PREALLOCATION: |
f7abe0ec | 3502 | prealloc = qapi_enum_parse(&PreallocMode_lookup, optarg, |
06c60b6c | 3503 | PREALLOC_MODE__MAX, NULL); |
dc5f690b HR |
3504 | if (prealloc == PREALLOC_MODE__MAX) { |
3505 | error_report("Invalid preallocation mode '%s'", optarg); | |
3506 | return 1; | |
3507 | } | |
3508 | break; | |
4ffca890 PB |
3509 | case OPTION_SHRINK: |
3510 | shrink = true; | |
3511 | break; | |
ae6b0ed6 SH |
3512 | } |
3513 | } | |
fc11eb26 | 3514 | if (optind != argc - 1) { |
ac1307ab | 3515 | error_exit("Expecting one image file name"); |
ae6b0ed6 SH |
3516 | } |
3517 | filename = argv[optind++]; | |
ae6b0ed6 | 3518 | |
3babeb15 DB |
3519 | if (qemu_opts_foreach(&qemu_object_opts, |
3520 | user_creatable_add_opts_foreach, | |
51b9b478 | 3521 | NULL, NULL)) { |
3babeb15 DB |
3522 | return 1; |
3523 | } | |
3524 | ||
ae6b0ed6 SH |
3525 | /* Choose grow, shrink, or absolute resize mode */ |
3526 | switch (size[0]) { | |
3527 | case '+': | |
3528 | relative = 1; | |
3529 | size++; | |
3530 | break; | |
3531 | case '-': | |
3532 | relative = -1; | |
3533 | size++; | |
3534 | break; | |
3535 | default: | |
3536 | relative = 0; | |
3537 | break; | |
3538 | } | |
3539 | ||
3540 | /* Parse size */ | |
87ea75d5 | 3541 | param = qemu_opts_create(&resize_options, NULL, 0, &error_abort); |
f43e47db | 3542 | qemu_opt_set(param, BLOCK_OPT_SIZE, size, &err); |
6750e795 MA |
3543 | if (err) { |
3544 | error_report_err(err); | |
2a81998a | 3545 | ret = -1; |
20caf0f7 | 3546 | qemu_opts_del(param); |
2a81998a | 3547 | goto out; |
ae6b0ed6 | 3548 | } |
20caf0f7 DXW |
3549 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
3550 | qemu_opts_del(param); | |
ae6b0ed6 | 3551 | |
efaa7c4e | 3552 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
3553 | BDRV_O_RDWR | BDRV_O_RESIZE, false, quiet, |
3554 | false); | |
7e7d56d9 | 3555 | if (!blk) { |
2a81998a JS |
3556 | ret = -1; |
3557 | goto out; | |
c2abccec | 3558 | } |
ae6b0ed6 | 3559 | |
dc5f690b HR |
3560 | current_size = blk_getlength(blk); |
3561 | if (current_size < 0) { | |
3562 | error_report("Failed to inquire current image length: %s", | |
3563 | strerror(-current_size)); | |
3564 | ret = -1; | |
3565 | goto out; | |
3566 | } | |
3567 | ||
ae6b0ed6 | 3568 | if (relative) { |
dc5f690b | 3569 | total_size = current_size + n * relative; |
ae6b0ed6 SH |
3570 | } else { |
3571 | total_size = n; | |
3572 | } | |
3573 | if (total_size <= 0) { | |
15654a6d | 3574 | error_report("New image size must be positive"); |
c2abccec MK |
3575 | ret = -1; |
3576 | goto out; | |
ae6b0ed6 SH |
3577 | } |
3578 | ||
dc5f690b HR |
3579 | if (total_size <= current_size && prealloc != PREALLOC_MODE_OFF) { |
3580 | error_report("Preallocation can only be used for growing images"); | |
3581 | ret = -1; | |
3582 | goto out; | |
3583 | } | |
3584 | ||
4ffca890 PB |
3585 | if (total_size < current_size && !shrink) { |
3586 | warn_report("Shrinking an image will delete all data beyond the " | |
3587 | "shrunken image's end. Before performing such an " | |
3588 | "operation, make sure there is no important data there."); | |
3589 | ||
3590 | if (g_strcmp0(bdrv_get_format_name(blk_bs(blk)), "raw") != 0) { | |
3591 | error_report( | |
3592 | "Use the --shrink option to perform a shrink operation."); | |
3593 | ret = -1; | |
3594 | goto out; | |
3595 | } else { | |
3596 | warn_report("Using the --shrink option will suppress this message. " | |
3597 | "Note that future versions of qemu-img may refuse to " | |
3598 | "shrink images without this option."); | |
3599 | } | |
3600 | } | |
3601 | ||
dc5f690b | 3602 | ret = blk_truncate(blk, total_size, prealloc, &err); |
ed3d2ec9 | 3603 | if (!ret) { |
f382d43a | 3604 | qprintf(quiet, "Image resized.\n"); |
ed3d2ec9 HR |
3605 | } else { |
3606 | error_report_err(err); | |
ae6b0ed6 | 3607 | } |
c2abccec | 3608 | out: |
26f54e9a | 3609 | blk_unref(blk); |
c2abccec MK |
3610 | if (ret) { |
3611 | return 1; | |
3612 | } | |
ae6b0ed6 SH |
3613 | return 0; |
3614 | } | |
3615 | ||
76a3a34d | 3616 | static void amend_status_cb(BlockDriverState *bs, |
8b13976d HR |
3617 | int64_t offset, int64_t total_work_size, |
3618 | void *opaque) | |
76a3a34d HR |
3619 | { |
3620 | qemu_progress_print(100.f * offset / total_work_size, 0); | |
3621 | } | |
3622 | ||
6f176b48 HR |
3623 | static int img_amend(int argc, char **argv) |
3624 | { | |
dc523cd3 | 3625 | Error *err = NULL; |
6f176b48 HR |
3626 | int c, ret = 0; |
3627 | char *options = NULL; | |
83d0521a CL |
3628 | QemuOptsList *create_opts = NULL; |
3629 | QemuOpts *opts = NULL; | |
bd39e6ed HR |
3630 | const char *fmt = NULL, *filename, *cache; |
3631 | int flags; | |
ce099547 | 3632 | bool writethrough; |
76a3a34d | 3633 | bool quiet = false, progress = false; |
26f54e9a | 3634 | BlockBackend *blk = NULL; |
6f176b48 | 3635 | BlockDriverState *bs = NULL; |
eb769f74 | 3636 | bool image_opts = false; |
6f176b48 | 3637 | |
bd39e6ed | 3638 | cache = BDRV_DEFAULT_CACHE; |
6f176b48 | 3639 | for (;;) { |
3babeb15 DB |
3640 | static const struct option long_options[] = { |
3641 | {"help", no_argument, 0, 'h'}, | |
3642 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3643 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
3babeb15 DB |
3644 | {0, 0, 0, 0} |
3645 | }; | |
c9192973 | 3646 | c = getopt_long(argc, argv, ":ho:f:t:pq", |
3babeb15 | 3647 | long_options, NULL); |
6f176b48 HR |
3648 | if (c == -1) { |
3649 | break; | |
3650 | } | |
3651 | ||
3652 | switch (c) { | |
c9192973 SH |
3653 | case ':': |
3654 | missing_argument(argv[optind - 1]); | |
3655 | break; | |
f7077624 | 3656 | case '?': |
c9192973 SH |
3657 | unrecognized_option(argv[optind - 1]); |
3658 | break; | |
3659 | case 'h': | |
f7077624 SH |
3660 | help(); |
3661 | break; | |
3662 | case 'o': | |
3663 | if (!is_valid_option_list(optarg)) { | |
3664 | error_report("Invalid option list: %s", optarg); | |
3665 | ret = -1; | |
3666 | goto out_no_progress; | |
3667 | } | |
3668 | if (!options) { | |
3669 | options = g_strdup(optarg); | |
3670 | } else { | |
3671 | char *old_options = options; | |
3672 | options = g_strdup_printf("%s,%s", options, optarg); | |
3673 | g_free(old_options); | |
3674 | } | |
3675 | break; | |
3676 | case 'f': | |
3677 | fmt = optarg; | |
3678 | break; | |
3679 | case 't': | |
3680 | cache = optarg; | |
3681 | break; | |
3682 | case 'p': | |
3683 | progress = true; | |
3684 | break; | |
3685 | case 'q': | |
3686 | quiet = true; | |
3687 | break; | |
3688 | case OPTION_OBJECT: | |
3689 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3690 | optarg, true); | |
3691 | if (!opts) { | |
3692 | ret = -1; | |
3693 | goto out_no_progress; | |
3694 | } | |
3695 | break; | |
3696 | case OPTION_IMAGE_OPTS: | |
3697 | image_opts = true; | |
3698 | break; | |
6f176b48 HR |
3699 | } |
3700 | } | |
3701 | ||
a283cb6e | 3702 | if (!options) { |
ac1307ab | 3703 | error_exit("Must specify options (-o)"); |
6f176b48 HR |
3704 | } |
3705 | ||
3babeb15 DB |
3706 | if (qemu_opts_foreach(&qemu_object_opts, |
3707 | user_creatable_add_opts_foreach, | |
51b9b478 | 3708 | NULL, NULL)) { |
3babeb15 DB |
3709 | ret = -1; |
3710 | goto out_no_progress; | |
3711 | } | |
3712 | ||
76a3a34d HR |
3713 | if (quiet) { |
3714 | progress = false; | |
3715 | } | |
3716 | qemu_progress_init(progress, 1.0); | |
3717 | ||
a283cb6e KW |
3718 | filename = (optind == argc - 1) ? argv[argc - 1] : NULL; |
3719 | if (fmt && has_help_option(options)) { | |
3720 | /* If a format is explicitly specified (and possibly no filename is | |
3721 | * given), print option help here */ | |
3722 | ret = print_block_option_help(filename, fmt); | |
3723 | goto out; | |
6f176b48 HR |
3724 | } |
3725 | ||
a283cb6e | 3726 | if (optind != argc - 1) { |
b2f27e44 HR |
3727 | error_report("Expecting one image file name"); |
3728 | ret = -1; | |
3729 | goto out; | |
a283cb6e | 3730 | } |
6f176b48 | 3731 | |
ce099547 KW |
3732 | flags = BDRV_O_RDWR; |
3733 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
bd39e6ed HR |
3734 | if (ret < 0) { |
3735 | error_report("Invalid cache option: %s", cache); | |
3736 | goto out; | |
3737 | } | |
3738 | ||
335e9937 FZ |
3739 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
3740 | false); | |
7e7d56d9 | 3741 | if (!blk) { |
6f176b48 HR |
3742 | ret = -1; |
3743 | goto out; | |
3744 | } | |
7e7d56d9 | 3745 | bs = blk_bs(blk); |
6f176b48 HR |
3746 | |
3747 | fmt = bs->drv->format_name; | |
3748 | ||
626f84f3 | 3749 | if (has_help_option(options)) { |
a283cb6e | 3750 | /* If the format was auto-detected, print option help here */ |
6f176b48 HR |
3751 | ret = print_block_option_help(filename, fmt); |
3752 | goto out; | |
3753 | } | |
3754 | ||
b2439d26 HR |
3755 | if (!bs->drv->create_opts) { |
3756 | error_report("Format driver '%s' does not support any options to amend", | |
3757 | fmt); | |
3758 | ret = -1; | |
3759 | goto out; | |
3760 | } | |
3761 | ||
c282e1fd | 3762 | create_opts = qemu_opts_append(create_opts, bs->drv->create_opts); |
83d0521a | 3763 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); |
ece9086e PB |
3764 | qemu_opts_do_parse(opts, options, NULL, &err); |
3765 | if (err) { | |
3766 | error_report_err(err); | |
3767 | ret = -1; | |
3768 | goto out; | |
6f176b48 HR |
3769 | } |
3770 | ||
76a3a34d HR |
3771 | /* In case the driver does not call amend_status_cb() */ |
3772 | qemu_progress_print(0.f, 0); | |
8b13976d | 3773 | ret = bdrv_amend_options(bs, opts, &amend_status_cb, NULL); |
76a3a34d | 3774 | qemu_progress_print(100.f, 0); |
6f176b48 HR |
3775 | if (ret < 0) { |
3776 | error_report("Error while amending options: %s", strerror(-ret)); | |
3777 | goto out; | |
3778 | } | |
3779 | ||
3780 | out: | |
76a3a34d HR |
3781 | qemu_progress_end(); |
3782 | ||
e814dffc | 3783 | out_no_progress: |
26f54e9a | 3784 | blk_unref(blk); |
83d0521a CL |
3785 | qemu_opts_del(opts); |
3786 | qemu_opts_free(create_opts); | |
626f84f3 KW |
3787 | g_free(options); |
3788 | ||
6f176b48 HR |
3789 | if (ret) { |
3790 | return 1; | |
3791 | } | |
3792 | return 0; | |
3793 | } | |
3794 | ||
b6133b8c KW |
3795 | typedef struct BenchData { |
3796 | BlockBackend *blk; | |
3797 | uint64_t image_size; | |
b6495fa8 | 3798 | bool write; |
b6133b8c | 3799 | int bufsize; |
83de9be0 | 3800 | int step; |
b6133b8c KW |
3801 | int nrreq; |
3802 | int n; | |
55d539c8 KW |
3803 | int flush_interval; |
3804 | bool drain_on_flush; | |
b6133b8c KW |
3805 | uint8_t *buf; |
3806 | QEMUIOVector *qiov; | |
3807 | ||
3808 | int in_flight; | |
55d539c8 | 3809 | bool in_flush; |
b6133b8c KW |
3810 | uint64_t offset; |
3811 | } BenchData; | |
3812 | ||
55d539c8 KW |
3813 | static void bench_undrained_flush_cb(void *opaque, int ret) |
3814 | { | |
3815 | if (ret < 0) { | |
df3c286c | 3816 | error_report("Failed flush request: %s", strerror(-ret)); |
55d539c8 KW |
3817 | exit(EXIT_FAILURE); |
3818 | } | |
3819 | } | |
3820 | ||
b6133b8c KW |
3821 | static void bench_cb(void *opaque, int ret) |
3822 | { | |
3823 | BenchData *b = opaque; | |
3824 | BlockAIOCB *acb; | |
3825 | ||
3826 | if (ret < 0) { | |
df3c286c | 3827 | error_report("Failed request: %s", strerror(-ret)); |
b6133b8c KW |
3828 | exit(EXIT_FAILURE); |
3829 | } | |
55d539c8 KW |
3830 | |
3831 | if (b->in_flush) { | |
3832 | /* Just finished a flush with drained queue: Start next requests */ | |
3833 | assert(b->in_flight == 0); | |
3834 | b->in_flush = false; | |
3835 | } else if (b->in_flight > 0) { | |
3836 | int remaining = b->n - b->in_flight; | |
3837 | ||
b6133b8c KW |
3838 | b->n--; |
3839 | b->in_flight--; | |
55d539c8 KW |
3840 | |
3841 | /* Time for flush? Drain queue if requested, then flush */ | |
3842 | if (b->flush_interval && remaining % b->flush_interval == 0) { | |
3843 | if (!b->in_flight || !b->drain_on_flush) { | |
3844 | BlockCompletionFunc *cb; | |
3845 | ||
3846 | if (b->drain_on_flush) { | |
3847 | b->in_flush = true; | |
3848 | cb = bench_cb; | |
3849 | } else { | |
3850 | cb = bench_undrained_flush_cb; | |
3851 | } | |
3852 | ||
3853 | acb = blk_aio_flush(b->blk, cb, b); | |
3854 | if (!acb) { | |
3855 | error_report("Failed to issue flush request"); | |
3856 | exit(EXIT_FAILURE); | |
3857 | } | |
3858 | } | |
3859 | if (b->drain_on_flush) { | |
3860 | return; | |
3861 | } | |
3862 | } | |
b6133b8c KW |
3863 | } |
3864 | ||
3865 | while (b->n > b->in_flight && b->in_flight < b->nrreq) { | |
4baaa8c3 PB |
3866 | int64_t offset = b->offset; |
3867 | /* blk_aio_* might look for completed I/Os and kick bench_cb | |
3868 | * again, so make sure this operation is counted by in_flight | |
3869 | * and b->offset is ready for the next submission. | |
3870 | */ | |
3871 | b->in_flight++; | |
3872 | b->offset += b->step; | |
3873 | b->offset %= b->image_size; | |
b6495fa8 | 3874 | if (b->write) { |
4baaa8c3 | 3875 | acb = blk_aio_pwritev(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 3876 | } else { |
4baaa8c3 | 3877 | acb = blk_aio_preadv(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 3878 | } |
b6133b8c KW |
3879 | if (!acb) { |
3880 | error_report("Failed to issue request"); | |
3881 | exit(EXIT_FAILURE); | |
3882 | } | |
b6133b8c KW |
3883 | } |
3884 | } | |
3885 | ||
3886 | static int img_bench(int argc, char **argv) | |
3887 | { | |
3888 | int c, ret = 0; | |
3889 | const char *fmt = NULL, *filename; | |
3890 | bool quiet = false; | |
3891 | bool image_opts = false; | |
b6495fa8 | 3892 | bool is_write = false; |
b6133b8c KW |
3893 | int count = 75000; |
3894 | int depth = 64; | |
d3199a31 | 3895 | int64_t offset = 0; |
b6133b8c | 3896 | size_t bufsize = 4096; |
b6495fa8 | 3897 | int pattern = 0; |
83de9be0 | 3898 | size_t step = 0; |
55d539c8 KW |
3899 | int flush_interval = 0; |
3900 | bool drain_on_flush = true; | |
b6133b8c KW |
3901 | int64_t image_size; |
3902 | BlockBackend *blk = NULL; | |
3903 | BenchData data = {}; | |
3904 | int flags = 0; | |
604e8613 | 3905 | bool writethrough = false; |
b6133b8c KW |
3906 | struct timeval t1, t2; |
3907 | int i; | |
335e9937 | 3908 | bool force_share = false; |
b6133b8c KW |
3909 | |
3910 | for (;;) { | |
3911 | static const struct option long_options[] = { | |
3912 | {"help", no_argument, 0, 'h'}, | |
55d539c8 | 3913 | {"flush-interval", required_argument, 0, OPTION_FLUSH_INTERVAL}, |
b6133b8c | 3914 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
b6495fa8 | 3915 | {"pattern", required_argument, 0, OPTION_PATTERN}, |
55d539c8 | 3916 | {"no-drain", no_argument, 0, OPTION_NO_DRAIN}, |
335e9937 | 3917 | {"force-share", no_argument, 0, 'U'}, |
b6133b8c KW |
3918 | {0, 0, 0, 0} |
3919 | }; | |
335e9937 | 3920 | c = getopt_long(argc, argv, ":hc:d:f:no:qs:S:t:wU", long_options, NULL); |
b6133b8c KW |
3921 | if (c == -1) { |
3922 | break; | |
3923 | } | |
3924 | ||
3925 | switch (c) { | |
c9192973 SH |
3926 | case ':': |
3927 | missing_argument(argv[optind - 1]); | |
3928 | break; | |
b6133b8c | 3929 | case '?': |
c9192973 SH |
3930 | unrecognized_option(argv[optind - 1]); |
3931 | break; | |
3932 | case 'h': | |
b6133b8c KW |
3933 | help(); |
3934 | break; | |
3935 | case 'c': | |
3936 | { | |
8b3c6792 PM |
3937 | unsigned long res; |
3938 | ||
3939 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
3940 | error_report("Invalid request count specified"); |
3941 | return 1; | |
3942 | } | |
8b3c6792 | 3943 | count = res; |
b6133b8c KW |
3944 | break; |
3945 | } | |
3946 | case 'd': | |
3947 | { | |
8b3c6792 PM |
3948 | unsigned long res; |
3949 | ||
3950 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
3951 | error_report("Invalid queue depth specified"); |
3952 | return 1; | |
3953 | } | |
8b3c6792 | 3954 | depth = res; |
b6133b8c KW |
3955 | break; |
3956 | } | |
3957 | case 'f': | |
3958 | fmt = optarg; | |
3959 | break; | |
3960 | case 'n': | |
3961 | flags |= BDRV_O_NATIVE_AIO; | |
3962 | break; | |
d3199a31 KW |
3963 | case 'o': |
3964 | { | |
606caa0a MA |
3965 | offset = cvtnum(optarg); |
3966 | if (offset < 0) { | |
d3199a31 KW |
3967 | error_report("Invalid offset specified"); |
3968 | return 1; | |
3969 | } | |
3970 | break; | |
3971 | } | |
3972 | break; | |
b6133b8c KW |
3973 | case 'q': |
3974 | quiet = true; | |
3975 | break; | |
3976 | case 's': | |
3977 | { | |
3978 | int64_t sval; | |
b6133b8c | 3979 | |
606caa0a MA |
3980 | sval = cvtnum(optarg); |
3981 | if (sval < 0 || sval > INT_MAX) { | |
b6133b8c KW |
3982 | error_report("Invalid buffer size specified"); |
3983 | return 1; | |
3984 | } | |
3985 | ||
3986 | bufsize = sval; | |
3987 | break; | |
3988 | } | |
83de9be0 KW |
3989 | case 'S': |
3990 | { | |
3991 | int64_t sval; | |
83de9be0 | 3992 | |
606caa0a MA |
3993 | sval = cvtnum(optarg); |
3994 | if (sval < 0 || sval > INT_MAX) { | |
83de9be0 KW |
3995 | error_report("Invalid step size specified"); |
3996 | return 1; | |
3997 | } | |
3998 | ||
3999 | step = sval; | |
4000 | break; | |
4001 | } | |
b6133b8c KW |
4002 | case 't': |
4003 | ret = bdrv_parse_cache_mode(optarg, &flags, &writethrough); | |
4004 | if (ret < 0) { | |
4005 | error_report("Invalid cache mode"); | |
4006 | ret = -1; | |
4007 | goto out; | |
4008 | } | |
4009 | break; | |
b6495fa8 KW |
4010 | case 'w': |
4011 | flags |= BDRV_O_RDWR; | |
4012 | is_write = true; | |
4013 | break; | |
335e9937 FZ |
4014 | case 'U': |
4015 | force_share = true; | |
4016 | break; | |
b6495fa8 KW |
4017 | case OPTION_PATTERN: |
4018 | { | |
8b3c6792 PM |
4019 | unsigned long res; |
4020 | ||
4021 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > 0xff) { | |
b6495fa8 KW |
4022 | error_report("Invalid pattern byte specified"); |
4023 | return 1; | |
4024 | } | |
8b3c6792 | 4025 | pattern = res; |
b6495fa8 KW |
4026 | break; |
4027 | } | |
55d539c8 KW |
4028 | case OPTION_FLUSH_INTERVAL: |
4029 | { | |
8b3c6792 PM |
4030 | unsigned long res; |
4031 | ||
4032 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
55d539c8 KW |
4033 | error_report("Invalid flush interval specified"); |
4034 | return 1; | |
4035 | } | |
8b3c6792 | 4036 | flush_interval = res; |
55d539c8 KW |
4037 | break; |
4038 | } | |
4039 | case OPTION_NO_DRAIN: | |
4040 | drain_on_flush = false; | |
4041 | break; | |
b6133b8c KW |
4042 | case OPTION_IMAGE_OPTS: |
4043 | image_opts = true; | |
4044 | break; | |
4045 | } | |
4046 | } | |
4047 | ||
4048 | if (optind != argc - 1) { | |
4049 | error_exit("Expecting one image file name"); | |
4050 | } | |
4051 | filename = argv[argc - 1]; | |
4052 | ||
55d539c8 KW |
4053 | if (!is_write && flush_interval) { |
4054 | error_report("--flush-interval is only available in write tests"); | |
4055 | ret = -1; | |
4056 | goto out; | |
4057 | } | |
4058 | if (flush_interval && flush_interval < depth) { | |
4059 | error_report("Flush interval can't be smaller than depth"); | |
4060 | ret = -1; | |
4061 | goto out; | |
4062 | } | |
4063 | ||
335e9937 FZ |
4064 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
4065 | force_share); | |
b6133b8c KW |
4066 | if (!blk) { |
4067 | ret = -1; | |
4068 | goto out; | |
4069 | } | |
4070 | ||
4071 | image_size = blk_getlength(blk); | |
4072 | if (image_size < 0) { | |
4073 | ret = image_size; | |
4074 | goto out; | |
4075 | } | |
4076 | ||
4077 | data = (BenchData) { | |
55d539c8 KW |
4078 | .blk = blk, |
4079 | .image_size = image_size, | |
4080 | .bufsize = bufsize, | |
4081 | .step = step ?: bufsize, | |
4082 | .nrreq = depth, | |
4083 | .n = count, | |
4084 | .offset = offset, | |
4085 | .write = is_write, | |
4086 | .flush_interval = flush_interval, | |
4087 | .drain_on_flush = drain_on_flush, | |
b6133b8c | 4088 | }; |
d3199a31 | 4089 | printf("Sending %d %s requests, %d bytes each, %d in parallel " |
83de9be0 | 4090 | "(starting at offset %" PRId64 ", step size %d)\n", |
d3199a31 | 4091 | data.n, data.write ? "write" : "read", data.bufsize, data.nrreq, |
83de9be0 | 4092 | data.offset, data.step); |
55d539c8 KW |
4093 | if (flush_interval) { |
4094 | printf("Sending flush every %d requests\n", flush_interval); | |
4095 | } | |
b6133b8c KW |
4096 | |
4097 | data.buf = blk_blockalign(blk, data.nrreq * data.bufsize); | |
b6495fa8 KW |
4098 | memset(data.buf, pattern, data.nrreq * data.bufsize); |
4099 | ||
b6133b8c KW |
4100 | data.qiov = g_new(QEMUIOVector, data.nrreq); |
4101 | for (i = 0; i < data.nrreq; i++) { | |
4102 | qemu_iovec_init(&data.qiov[i], 1); | |
4103 | qemu_iovec_add(&data.qiov[i], | |
4104 | data.buf + i * data.bufsize, data.bufsize); | |
4105 | } | |
4106 | ||
4107 | gettimeofday(&t1, NULL); | |
4108 | bench_cb(&data, 0); | |
4109 | ||
4110 | while (data.n > 0) { | |
4111 | main_loop_wait(false); | |
4112 | } | |
4113 | gettimeofday(&t2, NULL); | |
4114 | ||
4115 | printf("Run completed in %3.3f seconds.\n", | |
4116 | (t2.tv_sec - t1.tv_sec) | |
4117 | + ((double)(t2.tv_usec - t1.tv_usec) / 1000000)); | |
4118 | ||
4119 | out: | |
4120 | qemu_vfree(data.buf); | |
4121 | blk_unref(blk); | |
4122 | ||
4123 | if (ret) { | |
86ce1f6e RS |
4124 | return 1; |
4125 | } | |
4126 | return 0; | |
4127 | } | |
4128 | ||
4129 | #define C_BS 01 | |
4130 | #define C_COUNT 02 | |
4131 | #define C_IF 04 | |
4132 | #define C_OF 010 | |
f7c15533 | 4133 | #define C_SKIP 020 |
86ce1f6e RS |
4134 | |
4135 | struct DdInfo { | |
4136 | unsigned int flags; | |
4137 | int64_t count; | |
4138 | }; | |
4139 | ||
4140 | struct DdIo { | |
4141 | int bsz; /* Block size */ | |
4142 | char *filename; | |
4143 | uint8_t *buf; | |
f7c15533 | 4144 | int64_t offset; |
86ce1f6e RS |
4145 | }; |
4146 | ||
4147 | struct DdOpts { | |
4148 | const char *name; | |
4149 | int (*f)(const char *, struct DdIo *, struct DdIo *, struct DdInfo *); | |
4150 | unsigned int flag; | |
4151 | }; | |
4152 | ||
4153 | static int img_dd_bs(const char *arg, | |
4154 | struct DdIo *in, struct DdIo *out, | |
4155 | struct DdInfo *dd) | |
4156 | { | |
86ce1f6e RS |
4157 | int64_t res; |
4158 | ||
606caa0a | 4159 | res = cvtnum(arg); |
86ce1f6e | 4160 | |
606caa0a | 4161 | if (res <= 0 || res > INT_MAX) { |
86ce1f6e RS |
4162 | error_report("invalid number: '%s'", arg); |
4163 | return 1; | |
4164 | } | |
4165 | in->bsz = out->bsz = res; | |
4166 | ||
4167 | return 0; | |
4168 | } | |
4169 | ||
4170 | static int img_dd_count(const char *arg, | |
4171 | struct DdIo *in, struct DdIo *out, | |
4172 | struct DdInfo *dd) | |
4173 | { | |
606caa0a | 4174 | dd->count = cvtnum(arg); |
86ce1f6e | 4175 | |
606caa0a | 4176 | if (dd->count < 0) { |
86ce1f6e RS |
4177 | error_report("invalid number: '%s'", arg); |
4178 | return 1; | |
4179 | } | |
4180 | ||
4181 | return 0; | |
4182 | } | |
4183 | ||
4184 | static int img_dd_if(const char *arg, | |
4185 | struct DdIo *in, struct DdIo *out, | |
4186 | struct DdInfo *dd) | |
4187 | { | |
4188 | in->filename = g_strdup(arg); | |
4189 | ||
4190 | return 0; | |
4191 | } | |
4192 | ||
4193 | static int img_dd_of(const char *arg, | |
4194 | struct DdIo *in, struct DdIo *out, | |
4195 | struct DdInfo *dd) | |
4196 | { | |
4197 | out->filename = g_strdup(arg); | |
4198 | ||
4199 | return 0; | |
4200 | } | |
4201 | ||
f7c15533 RS |
4202 | static int img_dd_skip(const char *arg, |
4203 | struct DdIo *in, struct DdIo *out, | |
4204 | struct DdInfo *dd) | |
4205 | { | |
606caa0a | 4206 | in->offset = cvtnum(arg); |
f7c15533 | 4207 | |
606caa0a | 4208 | if (in->offset < 0) { |
f7c15533 RS |
4209 | error_report("invalid number: '%s'", arg); |
4210 | return 1; | |
4211 | } | |
4212 | ||
4213 | return 0; | |
4214 | } | |
4215 | ||
86ce1f6e RS |
4216 | static int img_dd(int argc, char **argv) |
4217 | { | |
4218 | int ret = 0; | |
4219 | char *arg = NULL; | |
4220 | char *tmp; | |
4221 | BlockDriver *drv = NULL, *proto_drv = NULL; | |
4222 | BlockBackend *blk1 = NULL, *blk2 = NULL; | |
4223 | QemuOpts *opts = NULL; | |
4224 | QemuOptsList *create_opts = NULL; | |
4225 | Error *local_err = NULL; | |
4226 | bool image_opts = false; | |
4227 | int c, i; | |
4228 | const char *out_fmt = "raw"; | |
4229 | const char *fmt = NULL; | |
4230 | int64_t size = 0; | |
4231 | int64_t block_count = 0, out_pos, in_pos; | |
335e9937 | 4232 | bool force_share = false; |
86ce1f6e RS |
4233 | struct DdInfo dd = { |
4234 | .flags = 0, | |
4235 | .count = 0, | |
4236 | }; | |
4237 | struct DdIo in = { | |
4238 | .bsz = 512, /* Block size is by default 512 bytes */ | |
4239 | .filename = NULL, | |
f7c15533 RS |
4240 | .buf = NULL, |
4241 | .offset = 0 | |
86ce1f6e RS |
4242 | }; |
4243 | struct DdIo out = { | |
4244 | .bsz = 512, | |
4245 | .filename = NULL, | |
f7c15533 RS |
4246 | .buf = NULL, |
4247 | .offset = 0 | |
86ce1f6e RS |
4248 | }; |
4249 | ||
4250 | const struct DdOpts options[] = { | |
4251 | { "bs", img_dd_bs, C_BS }, | |
4252 | { "count", img_dd_count, C_COUNT }, | |
4253 | { "if", img_dd_if, C_IF }, | |
4254 | { "of", img_dd_of, C_OF }, | |
f7c15533 | 4255 | { "skip", img_dd_skip, C_SKIP }, |
86ce1f6e RS |
4256 | { NULL, NULL, 0 } |
4257 | }; | |
4258 | const struct option long_options[] = { | |
4259 | { "help", no_argument, 0, 'h'}, | |
83d4bf94 | 4260 | { "object", required_argument, 0, OPTION_OBJECT}, |
86ce1f6e | 4261 | { "image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 4262 | { "force-share", no_argument, 0, 'U'}, |
86ce1f6e RS |
4263 | { 0, 0, 0, 0 } |
4264 | }; | |
4265 | ||
335e9937 | 4266 | while ((c = getopt_long(argc, argv, ":hf:O:U", long_options, NULL))) { |
86ce1f6e RS |
4267 | if (c == EOF) { |
4268 | break; | |
4269 | } | |
4270 | switch (c) { | |
4271 | case 'O': | |
4272 | out_fmt = optarg; | |
4273 | break; | |
4274 | case 'f': | |
4275 | fmt = optarg; | |
4276 | break; | |
c9192973 SH |
4277 | case ':': |
4278 | missing_argument(argv[optind - 1]); | |
4279 | break; | |
86ce1f6e | 4280 | case '?': |
c9192973 SH |
4281 | unrecognized_option(argv[optind - 1]); |
4282 | break; | |
86ce1f6e RS |
4283 | case 'h': |
4284 | help(); | |
4285 | break; | |
335e9937 FZ |
4286 | case 'U': |
4287 | force_share = true; | |
4288 | break; | |
2a245709 SH |
4289 | case OPTION_OBJECT: |
4290 | if (!qemu_opts_parse_noisily(&qemu_object_opts, optarg, true)) { | |
83d4bf94 DB |
4291 | ret = -1; |
4292 | goto out; | |
4293 | } | |
2a245709 | 4294 | break; |
86ce1f6e RS |
4295 | case OPTION_IMAGE_OPTS: |
4296 | image_opts = true; | |
4297 | break; | |
4298 | } | |
4299 | } | |
4300 | ||
4301 | for (i = optind; i < argc; i++) { | |
4302 | int j; | |
4303 | arg = g_strdup(argv[i]); | |
4304 | ||
4305 | tmp = strchr(arg, '='); | |
4306 | if (tmp == NULL) { | |
4307 | error_report("unrecognized operand %s", arg); | |
4308 | ret = -1; | |
4309 | goto out; | |
4310 | } | |
4311 | ||
4312 | *tmp++ = '\0'; | |
4313 | ||
4314 | for (j = 0; options[j].name != NULL; j++) { | |
4315 | if (!strcmp(arg, options[j].name)) { | |
4316 | break; | |
4317 | } | |
4318 | } | |
4319 | if (options[j].name == NULL) { | |
4320 | error_report("unrecognized operand %s", arg); | |
4321 | ret = -1; | |
4322 | goto out; | |
4323 | } | |
4324 | ||
4325 | if (options[j].f(tmp, &in, &out, &dd) != 0) { | |
4326 | ret = -1; | |
4327 | goto out; | |
4328 | } | |
4329 | dd.flags |= options[j].flag; | |
4330 | g_free(arg); | |
4331 | arg = NULL; | |
4332 | } | |
4333 | ||
4334 | if (!(dd.flags & C_IF && dd.flags & C_OF)) { | |
4335 | error_report("Must specify both input and output files"); | |
4336 | ret = -1; | |
4337 | goto out; | |
4338 | } | |
83d4bf94 DB |
4339 | |
4340 | if (qemu_opts_foreach(&qemu_object_opts, | |
4341 | user_creatable_add_opts_foreach, | |
4342 | NULL, NULL)) { | |
4343 | ret = -1; | |
4344 | goto out; | |
4345 | } | |
4346 | ||
335e9937 FZ |
4347 | blk1 = img_open(image_opts, in.filename, fmt, 0, false, false, |
4348 | force_share); | |
86ce1f6e RS |
4349 | |
4350 | if (!blk1) { | |
4351 | ret = -1; | |
4352 | goto out; | |
4353 | } | |
4354 | ||
4355 | drv = bdrv_find_format(out_fmt); | |
4356 | if (!drv) { | |
4357 | error_report("Unknown file format"); | |
4358 | ret = -1; | |
4359 | goto out; | |
4360 | } | |
4361 | proto_drv = bdrv_find_protocol(out.filename, true, &local_err); | |
4362 | ||
4363 | if (!proto_drv) { | |
4364 | error_report_err(local_err); | |
4365 | ret = -1; | |
4366 | goto out; | |
4367 | } | |
4368 | if (!drv->create_opts) { | |
4369 | error_report("Format driver '%s' does not support image creation", | |
4370 | drv->format_name); | |
4371 | ret = -1; | |
4372 | goto out; | |
4373 | } | |
4374 | if (!proto_drv->create_opts) { | |
4375 | error_report("Protocol driver '%s' does not support image creation", | |
4376 | proto_drv->format_name); | |
4377 | ret = -1; | |
4378 | goto out; | |
4379 | } | |
4380 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
4381 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
4382 | ||
4383 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
4384 | ||
4385 | size = blk_getlength(blk1); | |
4386 | if (size < 0) { | |
4387 | error_report("Failed to get size for '%s'", in.filename); | |
4388 | ret = -1; | |
4389 | goto out; | |
4390 | } | |
4391 | ||
4392 | if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz && | |
4393 | dd.count * in.bsz < size) { | |
4394 | size = dd.count * in.bsz; | |
4395 | } | |
4396 | ||
f7c15533 RS |
4397 | /* Overflow means the specified offset is beyond input image's size */ |
4398 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || | |
4399 | size < in.bsz * in.offset)) { | |
4400 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort); | |
4401 | } else { | |
4402 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, | |
4403 | size - in.bsz * in.offset, &error_abort); | |
4404 | } | |
86ce1f6e RS |
4405 | |
4406 | ret = bdrv_create(drv, out.filename, opts, &local_err); | |
4407 | if (ret < 0) { | |
4408 | error_reportf_err(local_err, | |
4409 | "%s: error while creating output image: ", | |
4410 | out.filename); | |
4411 | ret = -1; | |
4412 | goto out; | |
4413 | } | |
4414 | ||
ea204dda DB |
4415 | /* TODO, we can't honour --image-opts for the target, |
4416 | * since it needs to be given in a format compatible | |
4417 | * with the bdrv_create() call above which does not | |
4418 | * support image-opts style. | |
4419 | */ | |
29cf9336 | 4420 | blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR, |
ea204dda | 4421 | false, false, false); |
86ce1f6e RS |
4422 | |
4423 | if (!blk2) { | |
4424 | ret = -1; | |
4425 | goto out; | |
4426 | } | |
4427 | ||
f7c15533 RS |
4428 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || |
4429 | size < in.offset * in.bsz)) { | |
4430 | /* We give a warning if the skip option is bigger than the input | |
4431 | * size and create an empty output disk image (i.e. like dd(1)). | |
4432 | */ | |
4433 | error_report("%s: cannot skip to specified offset", in.filename); | |
4434 | in_pos = size; | |
4435 | } else { | |
4436 | in_pos = in.offset * in.bsz; | |
4437 | } | |
4438 | ||
86ce1f6e RS |
4439 | in.buf = g_new(uint8_t, in.bsz); |
4440 | ||
f7c15533 | 4441 | for (out_pos = 0; in_pos < size; block_count++) { |
86ce1f6e RS |
4442 | int in_ret, out_ret; |
4443 | ||
4444 | if (in_pos + in.bsz > size) { | |
4445 | in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos); | |
4446 | } else { | |
4447 | in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz); | |
4448 | } | |
4449 | if (in_ret < 0) { | |
4450 | error_report("error while reading from input image file: %s", | |
4451 | strerror(-in_ret)); | |
4452 | ret = -1; | |
4453 | goto out; | |
4454 | } | |
4455 | in_pos += in_ret; | |
4456 | ||
4457 | out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0); | |
4458 | ||
4459 | if (out_ret < 0) { | |
4460 | error_report("error while writing to output image file: %s", | |
4461 | strerror(-out_ret)); | |
4462 | ret = -1; | |
4463 | goto out; | |
4464 | } | |
4465 | out_pos += out_ret; | |
4466 | } | |
4467 | ||
4468 | out: | |
4469 | g_free(arg); | |
4470 | qemu_opts_del(opts); | |
4471 | qemu_opts_free(create_opts); | |
4472 | blk_unref(blk1); | |
4473 | blk_unref(blk2); | |
4474 | g_free(in.filename); | |
4475 | g_free(out.filename); | |
4476 | g_free(in.buf); | |
4477 | g_free(out.buf); | |
4478 | ||
4479 | if (ret) { | |
b6133b8c KW |
4480 | return 1; |
4481 | } | |
4482 | return 0; | |
4483 | } | |
4484 | ||
fd03c2b8 SH |
4485 | static void dump_json_block_measure_info(BlockMeasureInfo *info) |
4486 | { | |
4487 | QString *str; | |
4488 | QObject *obj; | |
4489 | Visitor *v = qobject_output_visitor_new(&obj); | |
4490 | ||
4491 | visit_type_BlockMeasureInfo(v, NULL, &info, &error_abort); | |
4492 | visit_complete(v, &obj); | |
4493 | str = qobject_to_json_pretty(obj); | |
4494 | assert(str != NULL); | |
4495 | printf("%s\n", qstring_get_str(str)); | |
4496 | qobject_decref(obj); | |
4497 | visit_free(v); | |
4498 | QDECREF(str); | |
4499 | } | |
4500 | ||
4501 | static int img_measure(int argc, char **argv) | |
4502 | { | |
4503 | static const struct option long_options[] = { | |
4504 | {"help", no_argument, 0, 'h'}, | |
4505 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, | |
4506 | {"object", required_argument, 0, OPTION_OBJECT}, | |
4507 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
4508 | {"size", required_argument, 0, OPTION_SIZE}, | |
4509 | {"force-share", no_argument, 0, 'U'}, | |
4510 | {0, 0, 0, 0} | |
4511 | }; | |
4512 | OutputFormat output_format = OFORMAT_HUMAN; | |
4513 | BlockBackend *in_blk = NULL; | |
4514 | BlockDriver *drv; | |
4515 | const char *filename = NULL; | |
4516 | const char *fmt = NULL; | |
4517 | const char *out_fmt = "raw"; | |
4518 | char *options = NULL; | |
4519 | char *snapshot_name = NULL; | |
4520 | bool force_share = false; | |
4521 | QemuOpts *opts = NULL; | |
4522 | QemuOpts *object_opts = NULL; | |
4523 | QemuOpts *sn_opts = NULL; | |
4524 | QemuOptsList *create_opts = NULL; | |
4525 | bool image_opts = false; | |
4526 | uint64_t img_size = UINT64_MAX; | |
4527 | BlockMeasureInfo *info = NULL; | |
4528 | Error *local_err = NULL; | |
4529 | int ret = 1; | |
4530 | int c; | |
4531 | ||
4532 | while ((c = getopt_long(argc, argv, "hf:O:o:l:U", | |
4533 | long_options, NULL)) != -1) { | |
4534 | switch (c) { | |
4535 | case '?': | |
4536 | case 'h': | |
4537 | help(); | |
4538 | break; | |
4539 | case 'f': | |
4540 | fmt = optarg; | |
4541 | break; | |
4542 | case 'O': | |
4543 | out_fmt = optarg; | |
4544 | break; | |
4545 | case 'o': | |
4546 | if (!is_valid_option_list(optarg)) { | |
4547 | error_report("Invalid option list: %s", optarg); | |
4548 | goto out; | |
4549 | } | |
4550 | if (!options) { | |
4551 | options = g_strdup(optarg); | |
4552 | } else { | |
4553 | char *old_options = options; | |
4554 | options = g_strdup_printf("%s,%s", options, optarg); | |
4555 | g_free(old_options); | |
4556 | } | |
4557 | break; | |
4558 | case 'l': | |
4559 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
4560 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, | |
4561 | optarg, false); | |
4562 | if (!sn_opts) { | |
4563 | error_report("Failed in parsing snapshot param '%s'", | |
4564 | optarg); | |
4565 | goto out; | |
4566 | } | |
4567 | } else { | |
4568 | snapshot_name = optarg; | |
4569 | } | |
4570 | break; | |
4571 | case 'U': | |
4572 | force_share = true; | |
4573 | break; | |
4574 | case OPTION_OBJECT: | |
4575 | object_opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
4576 | optarg, true); | |
4577 | if (!object_opts) { | |
4578 | goto out; | |
4579 | } | |
4580 | break; | |
4581 | case OPTION_IMAGE_OPTS: | |
4582 | image_opts = true; | |
4583 | break; | |
4584 | case OPTION_OUTPUT: | |
4585 | if (!strcmp(optarg, "json")) { | |
4586 | output_format = OFORMAT_JSON; | |
4587 | } else if (!strcmp(optarg, "human")) { | |
4588 | output_format = OFORMAT_HUMAN; | |
4589 | } else { | |
4590 | error_report("--output must be used with human or json " | |
4591 | "as argument."); | |
4592 | goto out; | |
4593 | } | |
4594 | break; | |
4595 | case OPTION_SIZE: | |
4596 | { | |
4597 | int64_t sval; | |
4598 | ||
4599 | sval = cvtnum(optarg); | |
4600 | if (sval < 0) { | |
4601 | if (sval == -ERANGE) { | |
4602 | error_report("Image size must be less than 8 EiB!"); | |
4603 | } else { | |
4604 | error_report("Invalid image size specified! You may use " | |
4605 | "k, M, G, T, P or E suffixes for "); | |
4606 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
4607 | "petabytes and exabytes."); | |
4608 | } | |
4609 | goto out; | |
4610 | } | |
4611 | img_size = (uint64_t)sval; | |
4612 | } | |
4613 | break; | |
4614 | } | |
4615 | } | |
4616 | ||
4617 | if (qemu_opts_foreach(&qemu_object_opts, | |
4618 | user_creatable_add_opts_foreach, | |
4619 | NULL, NULL)) { | |
4620 | goto out; | |
4621 | } | |
4622 | ||
4623 | if (argc - optind > 1) { | |
4624 | error_report("At most one filename argument is allowed."); | |
4625 | goto out; | |
4626 | } else if (argc - optind == 1) { | |
4627 | filename = argv[optind]; | |
4628 | } | |
4629 | ||
4630 | if (!filename && | |
4631 | (object_opts || image_opts || fmt || snapshot_name || sn_opts)) { | |
4632 | error_report("--object, --image-opts, -f, and -l " | |
4633 | "require a filename argument."); | |
4634 | goto out; | |
4635 | } | |
4636 | if (filename && img_size != UINT64_MAX) { | |
4637 | error_report("--size N cannot be used together with a filename."); | |
4638 | goto out; | |
4639 | } | |
4640 | if (!filename && img_size == UINT64_MAX) { | |
4641 | error_report("Either --size N or one filename must be specified."); | |
4642 | goto out; | |
4643 | } | |
4644 | ||
4645 | if (filename) { | |
4646 | in_blk = img_open(image_opts, filename, fmt, 0, | |
4647 | false, false, force_share); | |
4648 | if (!in_blk) { | |
4649 | goto out; | |
4650 | } | |
4651 | ||
4652 | if (sn_opts) { | |
4653 | bdrv_snapshot_load_tmp(blk_bs(in_blk), | |
4654 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), | |
4655 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
4656 | &local_err); | |
4657 | } else if (snapshot_name != NULL) { | |
4658 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(in_blk), | |
4659 | snapshot_name, &local_err); | |
4660 | } | |
4661 | if (local_err) { | |
4662 | error_reportf_err(local_err, "Failed to load snapshot: "); | |
4663 | goto out; | |
4664 | } | |
4665 | } | |
4666 | ||
4667 | drv = bdrv_find_format(out_fmt); | |
4668 | if (!drv) { | |
4669 | error_report("Unknown file format '%s'", out_fmt); | |
4670 | goto out; | |
4671 | } | |
4672 | if (!drv->create_opts) { | |
4673 | error_report("Format driver '%s' does not support image creation", | |
4674 | drv->format_name); | |
4675 | goto out; | |
4676 | } | |
4677 | ||
4678 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
4679 | create_opts = qemu_opts_append(create_opts, bdrv_file.create_opts); | |
4680 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
4681 | if (options) { | |
4682 | qemu_opts_do_parse(opts, options, NULL, &local_err); | |
4683 | if (local_err) { | |
4684 | error_report_err(local_err); | |
4685 | error_report("Invalid options for file format '%s'", out_fmt); | |
4686 | goto out; | |
4687 | } | |
4688 | } | |
4689 | if (img_size != UINT64_MAX) { | |
4690 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort); | |
4691 | } | |
4692 | ||
4693 | info = bdrv_measure(drv, opts, in_blk ? blk_bs(in_blk) : NULL, &local_err); | |
4694 | if (local_err) { | |
4695 | error_report_err(local_err); | |
4696 | goto out; | |
4697 | } | |
4698 | ||
4699 | if (output_format == OFORMAT_HUMAN) { | |
4700 | printf("required size: %" PRIu64 "\n", info->required); | |
4701 | printf("fully allocated size: %" PRIu64 "\n", info->fully_allocated); | |
4702 | } else { | |
4703 | dump_json_block_measure_info(info); | |
4704 | } | |
4705 | ||
4706 | ret = 0; | |
4707 | ||
4708 | out: | |
4709 | qapi_free_BlockMeasureInfo(info); | |
4710 | qemu_opts_del(object_opts); | |
4711 | qemu_opts_del(opts); | |
4712 | qemu_opts_del(sn_opts); | |
4713 | qemu_opts_free(create_opts); | |
4714 | g_free(options); | |
4715 | blk_unref(in_blk); | |
4716 | return ret; | |
4717 | } | |
b6133b8c | 4718 | |
c227f099 | 4719 | static const img_cmd_t img_cmds[] = { |
153859be SB |
4720 | #define DEF(option, callback, arg_string) \ |
4721 | { option, callback }, | |
4722 | #include "qemu-img-cmds.h" | |
4723 | #undef DEF | |
4724 | #undef GEN_DOCS | |
4725 | { NULL, NULL, }, | |
4726 | }; | |
4727 | ||
ea2384d3 FB |
4728 | int main(int argc, char **argv) |
4729 | { | |
c227f099 | 4730 | const img_cmd_t *cmd; |
153859be | 4731 | const char *cmdname; |
2f78e491 | 4732 | Error *local_error = NULL; |
06a1e0c1 | 4733 | char *trace_file = NULL; |
7db1689c | 4734 | int c; |
7db1689c JC |
4735 | static const struct option long_options[] = { |
4736 | {"help", no_argument, 0, 'h'}, | |
10985131 | 4737 | {"version", no_argument, 0, 'V'}, |
06a1e0c1 | 4738 | {"trace", required_argument, NULL, 'T'}, |
7db1689c JC |
4739 | {0, 0, 0, 0} |
4740 | }; | |
ea2384d3 | 4741 | |
526eda14 MK |
4742 | #ifdef CONFIG_POSIX |
4743 | signal(SIGPIPE, SIG_IGN); | |
4744 | #endif | |
4745 | ||
fe4db84d | 4746 | module_call_init(MODULE_INIT_TRACE); |
53f76e58 | 4747 | error_set_progname(argv[0]); |
10f5bff6 | 4748 | qemu_init_exec_dir(argv[0]); |
53f76e58 | 4749 | |
2f78e491 | 4750 | if (qemu_init_main_loop(&local_error)) { |
565f65d2 | 4751 | error_report_err(local_error); |
2f78e491 CN |
4752 | exit(EXIT_FAILURE); |
4753 | } | |
4754 | ||
e8f2d272 | 4755 | qcrypto_init(&error_fatal); |
c2297088 | 4756 | |
064097d9 | 4757 | module_call_init(MODULE_INIT_QOM); |
ea2384d3 | 4758 | bdrv_init(); |
ac1307ab FZ |
4759 | if (argc < 2) { |
4760 | error_exit("Not enough arguments"); | |
4761 | } | |
153859be | 4762 | |
3babeb15 | 4763 | qemu_add_opts(&qemu_object_opts); |
eb769f74 | 4764 | qemu_add_opts(&qemu_source_opts); |
06a1e0c1 | 4765 | qemu_add_opts(&qemu_trace_opts); |
3babeb15 | 4766 | |
c9192973 | 4767 | while ((c = getopt_long(argc, argv, "+:hVT:", long_options, NULL)) != -1) { |
10985131 | 4768 | switch (c) { |
c9192973 SH |
4769 | case ':': |
4770 | missing_argument(argv[optind - 1]); | |
4771 | return 0; | |
4581c16f | 4772 | case '?': |
c9192973 SH |
4773 | unrecognized_option(argv[optind - 1]); |
4774 | return 0; | |
4775 | case 'h': | |
10985131 DL |
4776 | help(); |
4777 | return 0; | |
4778 | case 'V': | |
4779 | printf(QEMU_IMG_VERSION); | |
4780 | return 0; | |
06a1e0c1 DL |
4781 | case 'T': |
4782 | g_free(trace_file); | |
4783 | trace_file = trace_opt_parse(optarg); | |
4784 | break; | |
153859be | 4785 | } |
ea2384d3 | 4786 | } |
153859be | 4787 | |
10985131 | 4788 | cmdname = argv[optind]; |
7db1689c | 4789 | |
10985131 DL |
4790 | /* reset getopt_long scanning */ |
4791 | argc -= optind; | |
4792 | if (argc < 1) { | |
5f6979cb JC |
4793 | return 0; |
4794 | } | |
10985131 | 4795 | argv += optind; |
cfef6a45 | 4796 | optind = 0; |
10985131 | 4797 | |
06a1e0c1 DL |
4798 | if (!trace_init_backends()) { |
4799 | exit(1); | |
4800 | } | |
4801 | trace_init_file(trace_file); | |
4802 | qemu_set_log(LOG_TRACE); | |
4803 | ||
10985131 DL |
4804 | /* find the command */ |
4805 | for (cmd = img_cmds; cmd->name != NULL; cmd++) { | |
4806 | if (!strcmp(cmdname, cmd->name)) { | |
4807 | return cmd->handler(argc, argv); | |
4808 | } | |
4809 | } | |
7db1689c | 4810 | |
153859be | 4811 | /* not found */ |
ac1307ab | 4812 | error_exit("Command not found: %s", cmdname); |
ea2384d3 | 4813 | } |