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ea2384d3 | 1 | /* |
fb43f4dd | 2 | * QEMU disk image utility |
5fafdf24 | 3 | * |
68d0f70e | 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
5fafdf24 | 5 | * |
ea2384d3 FB |
6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
7 | * of this software and associated documentation files (the "Software"), to deal | |
8 | * in the Software without restriction, including without limitation the rights | |
9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell | |
10 | * copies of the Software, and to permit persons to whom the Software is | |
11 | * furnished to do so, subject to the following conditions: | |
12 | * | |
13 | * The above copyright notice and this permission notice shall be included in | |
14 | * all copies or substantial portions of the Software. | |
15 | * | |
16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
19 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER | |
20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, | |
21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN | |
22 | * THE SOFTWARE. | |
23 | */ | |
80c71a24 | 24 | #include "qemu/osdep.h" |
67a1de0d | 25 | #include "qemu-version.h" |
da34e65c | 26 | #include "qapi/error.h" |
dc5f690b | 27 | #include "qapi/util.h" |
c054b3fd | 28 | #include "qapi-visit.h" |
b3db211f | 29 | #include "qapi/qobject-output-visitor.h" |
cc7a8ea7 | 30 | #include "qapi/qmp/qerror.h" |
7b1b5d19 | 31 | #include "qapi/qmp/qjson.h" |
335e9937 | 32 | #include "qapi/qmp/qbool.h" |
f348b6d1 | 33 | #include "qemu/cutils.h" |
3babeb15 | 34 | #include "qemu/config-file.h" |
1de7afc9 PB |
35 | #include "qemu/option.h" |
36 | #include "qemu/error-report.h" | |
06a1e0c1 | 37 | #include "qemu/log.h" |
3babeb15 | 38 | #include "qom/object_interfaces.h" |
9c17d615 | 39 | #include "sysemu/sysemu.h" |
26f54e9a | 40 | #include "sysemu/block-backend.h" |
737e150e | 41 | #include "block/block_int.h" |
d4a3238a | 42 | #include "block/blockjob.h" |
f364ec65 | 43 | #include "block/qapi.h" |
c2297088 | 44 | #include "crypto/init.h" |
06a1e0c1 | 45 | #include "trace/control.h" |
c054b3fd | 46 | #include <getopt.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, |
8599ea4c FS |
67 | }; |
68 | ||
69 | typedef enum OutputFormat { | |
70 | OFORMAT_JSON, | |
71 | OFORMAT_HUMAN, | |
72 | } OutputFormat; | |
73 | ||
e6996143 | 74 | /* Default to cache=writeback as data integrity is not important for qemu-img */ |
661a0f71 | 75 | #define BDRV_DEFAULT_CACHE "writeback" |
137519ce | 76 | |
00c6d403 | 77 | static void format_print(void *opaque, const char *name) |
ea2384d3 | 78 | { |
00c6d403 | 79 | printf(" %s", name); |
ea2384d3 FB |
80 | } |
81 | ||
ac1307ab FZ |
82 | static void QEMU_NORETURN GCC_FMT_ATTR(1, 2) error_exit(const char *fmt, ...) |
83 | { | |
84 | va_list ap; | |
85 | ||
86 | error_printf("qemu-img: "); | |
87 | ||
88 | va_start(ap, fmt); | |
89 | error_vprintf(fmt, ap); | |
90 | va_end(ap); | |
91 | ||
92 | error_printf("\nTry 'qemu-img --help' for more information\n"); | |
93 | exit(EXIT_FAILURE); | |
94 | } | |
95 | ||
c9192973 SH |
96 | static void QEMU_NORETURN missing_argument(const char *option) |
97 | { | |
98 | error_exit("missing argument for option '%s'", option); | |
99 | } | |
100 | ||
101 | static void QEMU_NORETURN unrecognized_option(const char *option) | |
102 | { | |
103 | error_exit("unrecognized option '%s'", option); | |
104 | } | |
105 | ||
d2c639d6 | 106 | /* Please keep in synch with qemu-img.texi */ |
ac1307ab | 107 | static void QEMU_NORETURN help(void) |
ea2384d3 | 108 | { |
e00291c0 | 109 | const char *help_msg = |
5f6979cb | 110 | QEMU_IMG_VERSION |
10985131 | 111 | "usage: qemu-img [standard options] command [command options]\n" |
3f020d70 | 112 | "QEMU disk image utility\n" |
113 | "\n" | |
10985131 DL |
114 | " '-h', '--help' display this help and exit\n" |
115 | " '-V', '--version' output version information and exit\n" | |
06a1e0c1 DL |
116 | " '-T', '--trace' [[enable=]<pattern>][,events=<file>][,file=<file>]\n" |
117 | " specify tracing options\n" | |
10985131 | 118 | "\n" |
3f020d70 | 119 | "Command syntax:\n" |
153859be SB |
120 | #define DEF(option, callback, arg_string) \ |
121 | " " arg_string "\n" | |
122 | #include "qemu-img-cmds.h" | |
123 | #undef DEF | |
124 | #undef GEN_DOCS | |
3f020d70 | 125 | "\n" |
126 | "Command parameters:\n" | |
127 | " 'filename' is a disk image filename\n" | |
3babeb15 DB |
128 | " 'objectdef' is a QEMU user creatable object definition. See the qemu(1)\n" |
129 | " manual page for a description of the object properties. The most common\n" | |
130 | " object type is a 'secret', which is used to supply passwords and/or\n" | |
131 | " encryption keys.\n" | |
3f020d70 | 132 | " 'fmt' is the disk image format. It is guessed automatically in most cases\n" |
661a0f71 | 133 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
80ccf93b LY |
134 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
135 | " 'directsync' and 'unsafe' (default for convert)\n" | |
bb87fdf8 SH |
136 | " 'src_cache' is the cache mode used to read input disk images, the valid\n" |
137 | " options are the same as for the 'cache' option\n" | |
3f020d70 | 138 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
5e00984a KW |
139 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n" |
140 | " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n" | |
141 | " supported. 'b' is ignored.\n" | |
3f020d70 | 142 | " 'output_filename' is the destination disk image filename\n" |
143 | " 'output_fmt' is the destination format\n" | |
144 | " 'options' is a comma separated list of format specific options in a\n" | |
145 | " name=value format. Use -o ? for an overview of the options supported by the\n" | |
146 | " used format\n" | |
ef80654d WX |
147 | " 'snapshot_param' is param used for internal snapshot, format\n" |
148 | " is 'snapshot.id=[ID],snapshot.name=[NAME]', or\n" | |
149 | " '[ID_OR_NAME]'\n" | |
150 | " 'snapshot_id_or_name' is deprecated, use 'snapshot_param'\n" | |
151 | " instead\n" | |
3f020d70 | 152 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
153 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" | |
154 | " match exactly. The image doesn't need a working backing file before\n" | |
155 | " rebasing in this case (useful for renaming the backing file)\n" | |
156 | " '-h' with or without a command shows this help and lists the supported formats\n" | |
6b837bc4 | 157 | " '-p' show progress of command (only certain commands)\n" |
f382d43a | 158 | " '-q' use Quiet mode - do not print any output (except errors)\n" |
11b6699a PL |
159 | " '-S' indicates the consecutive number of bytes (defaults to 4k) that must\n" |
160 | " contain only zeros for qemu-img to create a sparse image during\n" | |
161 | " conversion. If the number of bytes is 0, the source will not be scanned for\n" | |
162 | " unallocated or zero sectors, and the destination image will always be\n" | |
163 | " fully allocated\n" | |
c054b3fd | 164 | " '--output' takes the format in which the output must be done (human or json)\n" |
b2e10493 AD |
165 | " '-n' skips the target volume creation (useful if the volume is created\n" |
166 | " prior to running qemu-img)\n" | |
3f020d70 | 167 | "\n" |
4534ff54 KW |
168 | "Parameters to check subcommand:\n" |
169 | " '-r' tries to repair any inconsistencies that are found during the check.\n" | |
170 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" | |
171 | " kinds of errors, with a higher risk of choosing the wrong fix or\n" | |
0546b8c2 | 172 | " hiding corruption that has already occurred.\n" |
4534ff54 | 173 | "\n" |
2d9187bc PL |
174 | "Parameters to convert subcommand:\n" |
175 | " '-m' specifies how many coroutines work in parallel during the convert\n" | |
176 | " process (defaults to 8)\n" | |
177 | " '-W' allow to write to the target out of order rather than sequential\n" | |
178 | "\n" | |
3f020d70 | 179 | "Parameters to snapshot subcommand:\n" |
180 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" | |
181 | " '-a' applies a snapshot (revert disk to saved state)\n" | |
182 | " '-c' creates a snapshot\n" | |
183 | " '-d' deletes a snapshot\n" | |
d14ed18c MR |
184 | " '-l' lists all snapshots in the given image\n" |
185 | "\n" | |
186 | "Parameters to compare subcommand:\n" | |
187 | " '-f' first image format\n" | |
188 | " '-F' second image format\n" | |
86ce1f6e RS |
189 | " '-s' run in Strict mode - fail on different image size or sector allocation\n" |
190 | "\n" | |
191 | "Parameters to dd subcommand:\n" | |
192 | " 'bs=BYTES' read and write up to BYTES bytes at a time " | |
193 | "(default: 512)\n" | |
194 | " 'count=N' copy only N input blocks\n" | |
195 | " 'if=FILE' read from FILE\n" | |
f7c15533 RS |
196 | " 'of=FILE' write to FILE\n" |
197 | " 'skip=N' skip N bs-sized blocks at the start of input\n"; | |
e00291c0 PB |
198 | |
199 | printf("%s\nSupported formats:", help_msg); | |
00c6d403 | 200 | bdrv_iterate_format(format_print, NULL); |
ea2384d3 | 201 | printf("\n"); |
ac1307ab | 202 | exit(EXIT_SUCCESS); |
ea2384d3 FB |
203 | } |
204 | ||
3babeb15 DB |
205 | static QemuOptsList qemu_object_opts = { |
206 | .name = "object", | |
207 | .implied_opt_name = "qom-type", | |
208 | .head = QTAILQ_HEAD_INITIALIZER(qemu_object_opts.head), | |
209 | .desc = { | |
210 | { } | |
211 | }, | |
212 | }; | |
213 | ||
eb769f74 DB |
214 | static QemuOptsList qemu_source_opts = { |
215 | .name = "source", | |
216 | .implied_opt_name = "file", | |
217 | .head = QTAILQ_HEAD_INITIALIZER(qemu_source_opts.head), | |
218 | .desc = { | |
219 | { } | |
220 | }, | |
221 | }; | |
222 | ||
7c30f657 | 223 | static int GCC_FMT_ATTR(2, 3) qprintf(bool quiet, const char *fmt, ...) |
f382d43a MR |
224 | { |
225 | int ret = 0; | |
226 | if (!quiet) { | |
227 | va_list args; | |
228 | va_start(args, fmt); | |
229 | ret = vprintf(fmt, args); | |
230 | va_end(args); | |
231 | } | |
232 | return ret; | |
233 | } | |
234 | ||
ea2384d3 | 235 | |
4ac8aacd JS |
236 | static int print_block_option_help(const char *filename, const char *fmt) |
237 | { | |
238 | BlockDriver *drv, *proto_drv; | |
83d0521a | 239 | QemuOptsList *create_opts = NULL; |
b65a5e12 | 240 | Error *local_err = NULL; |
4ac8aacd JS |
241 | |
242 | /* Find driver and parse its options */ | |
243 | drv = bdrv_find_format(fmt); | |
244 | if (!drv) { | |
15654a6d | 245 | error_report("Unknown file format '%s'", fmt); |
4ac8aacd JS |
246 | return 1; |
247 | } | |
248 | ||
c282e1fd | 249 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
a283cb6e | 250 | if (filename) { |
b65a5e12 | 251 | proto_drv = bdrv_find_protocol(filename, true, &local_err); |
a283cb6e | 252 | if (!proto_drv) { |
2867ce4a | 253 | error_report_err(local_err); |
83d0521a | 254 | qemu_opts_free(create_opts); |
a283cb6e KW |
255 | return 1; |
256 | } | |
c282e1fd | 257 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); |
a283cb6e KW |
258 | } |
259 | ||
83d0521a CL |
260 | qemu_opts_print_help(create_opts); |
261 | qemu_opts_free(create_opts); | |
4ac8aacd JS |
262 | return 0; |
263 | } | |
264 | ||
eb769f74 | 265 | |
efaa7c4e | 266 | static BlockBackend *img_open_opts(const char *optstr, |
ce099547 | 267 | QemuOpts *opts, int flags, bool writethrough, |
335e9937 | 268 | bool quiet, bool force_share) |
eb769f74 DB |
269 | { |
270 | QDict *options; | |
271 | Error *local_err = NULL; | |
272 | BlockBackend *blk; | |
273 | options = qemu_opts_to_qdict(opts, NULL); | |
335e9937 FZ |
274 | if (force_share) { |
275 | if (qdict_haskey(options, BDRV_OPT_FORCE_SHARE) | |
276 | && !qdict_get_bool(options, BDRV_OPT_FORCE_SHARE)) { | |
277 | error_report("--force-share/-U conflicts with image options"); | |
adb998c1 | 278 | QDECREF(options); |
335e9937 FZ |
279 | return NULL; |
280 | } | |
579cf1d1 | 281 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 282 | } |
efaa7c4e | 283 | blk = blk_new_open(NULL, NULL, options, flags, &local_err); |
eb769f74 | 284 | if (!blk) { |
143605a2 | 285 | error_reportf_err(local_err, "Could not open '%s': ", optstr); |
eb769f74 DB |
286 | return NULL; |
287 | } | |
ce099547 | 288 | blk_set_enable_write_cache(blk, !writethrough); |
eb769f74 | 289 | |
eb769f74 DB |
290 | return blk; |
291 | } | |
292 | ||
efaa7c4e | 293 | static BlockBackend *img_open_file(const char *filename, |
29cf9336 | 294 | QDict *options, |
eb769f74 | 295 | const char *fmt, int flags, |
335e9937 FZ |
296 | bool writethrough, bool quiet, |
297 | bool force_share) | |
eb769f74 DB |
298 | { |
299 | BlockBackend *blk; | |
34b5d2c6 | 300 | Error *local_err = NULL; |
ad717139 | 301 | |
29cf9336 DB |
302 | if (!options) { |
303 | options = qdict_new(); | |
304 | } | |
75c23805 | 305 | if (fmt) { |
46f5ac20 | 306 | qdict_put_str(options, "driver", fmt); |
75c23805 | 307 | } |
b9eaf9ec | 308 | |
335e9937 | 309 | if (force_share) { |
579cf1d1 | 310 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 311 | } |
efaa7c4e | 312 | blk = blk_new_open(filename, NULL, options, flags, &local_err); |
5bd31326 | 313 | if (!blk) { |
c29b77f9 | 314 | error_reportf_err(local_err, "Could not open '%s': ", filename); |
eb769f74 | 315 | return NULL; |
75c23805 | 316 | } |
ce099547 | 317 | blk_set_enable_write_cache(blk, !writethrough); |
b9eaf9ec | 318 | |
eb769f74 DB |
319 | return blk; |
320 | } | |
321 | ||
322 | ||
29cf9336 DB |
323 | static int img_add_key_secrets(void *opaque, |
324 | const char *name, const char *value, | |
325 | Error **errp) | |
326 | { | |
327 | QDict *options = opaque; | |
328 | ||
329 | if (g_str_has_suffix(name, "key-secret")) { | |
187f47e9 | 330 | qdict_put_str(options, name, value); |
29cf9336 DB |
331 | } |
332 | ||
333 | return 0; | |
334 | } | |
335 | ||
336 | static BlockBackend *img_open_new_file(const char *filename, | |
337 | QemuOpts *create_opts, | |
338 | const char *fmt, int flags, | |
339 | bool writethrough, bool quiet, | |
340 | bool force_share) | |
341 | { | |
342 | QDict *options = NULL; | |
343 | ||
344 | options = qdict_new(); | |
345 | qemu_opt_foreach(create_opts, img_add_key_secrets, options, &error_abort); | |
346 | ||
347 | return img_open_file(filename, options, fmt, flags, writethrough, quiet, | |
348 | force_share); | |
349 | } | |
350 | ||
351 | ||
efaa7c4e | 352 | static BlockBackend *img_open(bool image_opts, |
eb769f74 | 353 | const char *filename, |
ce099547 | 354 | const char *fmt, int flags, bool writethrough, |
335e9937 | 355 | bool quiet, bool force_share) |
eb769f74 DB |
356 | { |
357 | BlockBackend *blk; | |
358 | if (image_opts) { | |
359 | QemuOpts *opts; | |
360 | if (fmt) { | |
361 | error_report("--image-opts and --format are mutually exclusive"); | |
362 | return NULL; | |
363 | } | |
364 | opts = qemu_opts_parse_noisily(qemu_find_opts("source"), | |
365 | filename, true); | |
366 | if (!opts) { | |
367 | return NULL; | |
368 | } | |
335e9937 FZ |
369 | blk = img_open_opts(filename, opts, flags, writethrough, quiet, |
370 | force_share); | |
eb769f74 | 371 | } else { |
29cf9336 | 372 | blk = img_open_file(filename, NULL, fmt, flags, writethrough, quiet, |
335e9937 | 373 | force_share); |
75c23805 | 374 | } |
7e7d56d9 | 375 | return blk; |
75c23805 FB |
376 | } |
377 | ||
eb769f74 | 378 | |
83d0521a | 379 | static int add_old_style_options(const char *fmt, QemuOpts *opts, |
eec77d9e JS |
380 | const char *base_filename, |
381 | const char *base_fmt) | |
efa84d43 | 382 | { |
6750e795 MA |
383 | Error *err = NULL; |
384 | ||
efa84d43 | 385 | if (base_filename) { |
f43e47db | 386 | qemu_opt_set(opts, BLOCK_OPT_BACKING_FILE, base_filename, &err); |
6750e795 | 387 | if (err) { |
15654a6d JS |
388 | error_report("Backing file not supported for file format '%s'", |
389 | fmt); | |
6750e795 | 390 | error_free(err); |
c2abccec | 391 | return -1; |
efa84d43 KW |
392 | } |
393 | } | |
394 | if (base_fmt) { | |
f43e47db | 395 | qemu_opt_set(opts, BLOCK_OPT_BACKING_FMT, base_fmt, &err); |
6750e795 | 396 | if (err) { |
15654a6d JS |
397 | error_report("Backing file format not supported for file " |
398 | "format '%s'", fmt); | |
6750e795 | 399 | error_free(err); |
c2abccec | 400 | return -1; |
efa84d43 KW |
401 | } |
402 | } | |
c2abccec | 403 | return 0; |
efa84d43 KW |
404 | } |
405 | ||
606caa0a MA |
406 | static int64_t cvtnum(const char *s) |
407 | { | |
f17fd4fd | 408 | int err; |
f46bfdbf | 409 | uint64_t value; |
606caa0a | 410 | |
f17fd4fd MA |
411 | err = qemu_strtosz(s, NULL, &value); |
412 | if (err < 0) { | |
413 | return err; | |
414 | } | |
f46bfdbf MA |
415 | if (value > INT64_MAX) { |
416 | return -ERANGE; | |
417 | } | |
f17fd4fd | 418 | return value; |
606caa0a MA |
419 | } |
420 | ||
ea2384d3 FB |
421 | static int img_create(int argc, char **argv) |
422 | { | |
a9300911 | 423 | int c; |
1da7cfbd | 424 | uint64_t img_size = -1; |
ea2384d3 | 425 | const char *fmt = "raw"; |
9230eaf6 | 426 | const char *base_fmt = NULL; |
ea2384d3 FB |
427 | const char *filename; |
428 | const char *base_filename = NULL; | |
9ea2ea71 | 429 | char *options = NULL; |
9b37525a | 430 | Error *local_err = NULL; |
f382d43a | 431 | bool quiet = false; |
3b46e624 | 432 | |
ea2384d3 | 433 | for(;;) { |
3babeb15 DB |
434 | static const struct option long_options[] = { |
435 | {"help", no_argument, 0, 'h'}, | |
436 | {"object", required_argument, 0, OPTION_OBJECT}, | |
437 | {0, 0, 0, 0} | |
438 | }; | |
6b4df548 | 439 | c = getopt_long(argc, argv, ":F:b:f:ho:q", |
3babeb15 | 440 | long_options, NULL); |
b8fb60da | 441 | if (c == -1) { |
ea2384d3 | 442 | break; |
b8fb60da | 443 | } |
ea2384d3 | 444 | switch(c) { |
c9192973 SH |
445 | case ':': |
446 | missing_argument(argv[optind - 1]); | |
447 | break; | |
ef87394c | 448 | case '?': |
c9192973 SH |
449 | unrecognized_option(argv[optind - 1]); |
450 | break; | |
ea2384d3 FB |
451 | case 'h': |
452 | help(); | |
453 | break; | |
9230eaf6 AL |
454 | case 'F': |
455 | base_fmt = optarg; | |
456 | break; | |
ea2384d3 FB |
457 | case 'b': |
458 | base_filename = optarg; | |
459 | break; | |
460 | case 'f': | |
461 | fmt = optarg; | |
462 | break; | |
9ea2ea71 | 463 | case 'o': |
77386bf6 KW |
464 | if (!is_valid_option_list(optarg)) { |
465 | error_report("Invalid option list: %s", optarg); | |
466 | goto fail; | |
467 | } | |
468 | if (!options) { | |
469 | options = g_strdup(optarg); | |
470 | } else { | |
471 | char *old_options = options; | |
472 | options = g_strdup_printf("%s,%s", options, optarg); | |
473 | g_free(old_options); | |
474 | } | |
9ea2ea71 | 475 | break; |
f382d43a MR |
476 | case 'q': |
477 | quiet = true; | |
478 | break; | |
3babeb15 DB |
479 | case OPTION_OBJECT: { |
480 | QemuOpts *opts; | |
481 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
482 | optarg, true); | |
483 | if (!opts) { | |
484 | goto fail; | |
485 | } | |
486 | } break; | |
ea2384d3 FB |
487 | } |
488 | } | |
9230eaf6 | 489 | |
b50cbabc | 490 | /* Get the filename */ |
a283cb6e KW |
491 | filename = (optind < argc) ? argv[optind] : NULL; |
492 | if (options && has_help_option(options)) { | |
493 | g_free(options); | |
494 | return print_block_option_help(filename, fmt); | |
495 | } | |
496 | ||
b8fb60da | 497 | if (optind >= argc) { |
ac1307ab | 498 | error_exit("Expecting image file name"); |
b8fb60da | 499 | } |
a283cb6e | 500 | optind++; |
b50cbabc | 501 | |
3babeb15 DB |
502 | if (qemu_opts_foreach(&qemu_object_opts, |
503 | user_creatable_add_opts_foreach, | |
51b9b478 | 504 | NULL, NULL)) { |
3babeb15 DB |
505 | goto fail; |
506 | } | |
507 | ||
1da7cfbd JS |
508 | /* Get image size, if specified */ |
509 | if (optind < argc) { | |
70b4f4bb | 510 | int64_t sval; |
606caa0a MA |
511 | |
512 | sval = cvtnum(argv[optind++]); | |
513 | if (sval < 0) { | |
79443397 LG |
514 | if (sval == -ERANGE) { |
515 | error_report("Image size must be less than 8 EiB!"); | |
516 | } else { | |
517 | error_report("Invalid image size specified! You may use k, M, " | |
5e00984a KW |
518 | "G, T, P or E suffixes for "); |
519 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
520 | "petabytes and exabytes."); | |
79443397 | 521 | } |
77386bf6 | 522 | goto fail; |
1da7cfbd JS |
523 | } |
524 | img_size = (uint64_t)sval; | |
525 | } | |
fc11eb26 | 526 | if (optind != argc) { |
ac1307ab | 527 | error_exit("Unexpected argument: %s", argv[optind]); |
fc11eb26 | 528 | } |
1da7cfbd | 529 | |
9b37525a | 530 | bdrv_img_create(filename, fmt, base_filename, base_fmt, |
9217283d | 531 | options, img_size, 0, quiet, &local_err); |
84d18f06 | 532 | if (local_err) { |
c29b77f9 | 533 | error_reportf_err(local_err, "%s: ", filename); |
77386bf6 | 534 | goto fail; |
c2abccec | 535 | } |
a9300911 | 536 | |
77386bf6 | 537 | g_free(options); |
ea2384d3 | 538 | return 0; |
77386bf6 KW |
539 | |
540 | fail: | |
541 | g_free(options); | |
542 | return 1; | |
ea2384d3 FB |
543 | } |
544 | ||
f382d43a | 545 | static void dump_json_image_check(ImageCheck *check, bool quiet) |
8599ea4c | 546 | { |
8599ea4c | 547 | QString *str; |
8599ea4c | 548 | QObject *obj; |
7d5e199a | 549 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
550 | |
551 | visit_type_ImageCheck(v, NULL, &check, &error_abort); | |
552 | visit_complete(v, &obj); | |
8599ea4c FS |
553 | str = qobject_to_json_pretty(obj); |
554 | assert(str != NULL); | |
f382d43a | 555 | qprintf(quiet, "%s\n", qstring_get_str(str)); |
8599ea4c | 556 | qobject_decref(obj); |
3b098d56 | 557 | visit_free(v); |
8599ea4c FS |
558 | QDECREF(str); |
559 | } | |
560 | ||
f382d43a | 561 | static void dump_human_image_check(ImageCheck *check, bool quiet) |
8599ea4c FS |
562 | { |
563 | if (!(check->corruptions || check->leaks || check->check_errors)) { | |
f382d43a | 564 | qprintf(quiet, "No errors were found on the image.\n"); |
8599ea4c FS |
565 | } else { |
566 | if (check->corruptions) { | |
f382d43a MR |
567 | qprintf(quiet, "\n%" PRId64 " errors were found on the image.\n" |
568 | "Data may be corrupted, or further writes to the image " | |
569 | "may corrupt it.\n", | |
570 | check->corruptions); | |
8599ea4c FS |
571 | } |
572 | ||
573 | if (check->leaks) { | |
f382d43a MR |
574 | qprintf(quiet, |
575 | "\n%" PRId64 " leaked clusters were found on the image.\n" | |
576 | "This means waste of disk space, but no harm to data.\n", | |
577 | check->leaks); | |
8599ea4c FS |
578 | } |
579 | ||
580 | if (check->check_errors) { | |
f382d43a MR |
581 | qprintf(quiet, |
582 | "\n%" PRId64 | |
583 | " internal errors have occurred during the check.\n", | |
584 | check->check_errors); | |
8599ea4c FS |
585 | } |
586 | } | |
587 | ||
588 | if (check->total_clusters != 0 && check->allocated_clusters != 0) { | |
f382d43a MR |
589 | qprintf(quiet, "%" PRId64 "/%" PRId64 " = %0.2f%% allocated, " |
590 | "%0.2f%% fragmented, %0.2f%% compressed clusters\n", | |
591 | check->allocated_clusters, check->total_clusters, | |
592 | check->allocated_clusters * 100.0 / check->total_clusters, | |
593 | check->fragmented_clusters * 100.0 / check->allocated_clusters, | |
594 | check->compressed_clusters * 100.0 / | |
595 | check->allocated_clusters); | |
8599ea4c FS |
596 | } |
597 | ||
598 | if (check->image_end_offset) { | |
f382d43a MR |
599 | qprintf(quiet, |
600 | "Image end offset: %" PRId64 "\n", check->image_end_offset); | |
8599ea4c FS |
601 | } |
602 | } | |
603 | ||
604 | static int collect_image_check(BlockDriverState *bs, | |
605 | ImageCheck *check, | |
606 | const char *filename, | |
607 | const char *fmt, | |
608 | int fix) | |
609 | { | |
610 | int ret; | |
611 | BdrvCheckResult result; | |
612 | ||
613 | ret = bdrv_check(bs, &result, fix); | |
614 | if (ret < 0) { | |
615 | return ret; | |
616 | } | |
617 | ||
618 | check->filename = g_strdup(filename); | |
619 | check->format = g_strdup(bdrv_get_format_name(bs)); | |
620 | check->check_errors = result.check_errors; | |
621 | check->corruptions = result.corruptions; | |
622 | check->has_corruptions = result.corruptions != 0; | |
623 | check->leaks = result.leaks; | |
624 | check->has_leaks = result.leaks != 0; | |
625 | check->corruptions_fixed = result.corruptions_fixed; | |
626 | check->has_corruptions_fixed = result.corruptions != 0; | |
627 | check->leaks_fixed = result.leaks_fixed; | |
628 | check->has_leaks_fixed = result.leaks != 0; | |
629 | check->image_end_offset = result.image_end_offset; | |
630 | check->has_image_end_offset = result.image_end_offset != 0; | |
631 | check->total_clusters = result.bfi.total_clusters; | |
632 | check->has_total_clusters = result.bfi.total_clusters != 0; | |
633 | check->allocated_clusters = result.bfi.allocated_clusters; | |
634 | check->has_allocated_clusters = result.bfi.allocated_clusters != 0; | |
635 | check->fragmented_clusters = result.bfi.fragmented_clusters; | |
636 | check->has_fragmented_clusters = result.bfi.fragmented_clusters != 0; | |
e6439d78 SH |
637 | check->compressed_clusters = result.bfi.compressed_clusters; |
638 | check->has_compressed_clusters = result.bfi.compressed_clusters != 0; | |
8599ea4c FS |
639 | |
640 | return 0; | |
641 | } | |
642 | ||
e076f338 KW |
643 | /* |
644 | * Checks an image for consistency. Exit codes: | |
645 | * | |
d6635c4d HR |
646 | * 0 - Check completed, image is good |
647 | * 1 - Check not completed because of internal errors | |
648 | * 2 - Check completed, image is corrupted | |
649 | * 3 - Check completed, image has leaked clusters, but is good otherwise | |
650 | * 63 - Checks are not supported by the image format | |
e076f338 | 651 | */ |
1585969c AL |
652 | static int img_check(int argc, char **argv) |
653 | { | |
654 | int c, ret; | |
8599ea4c | 655 | OutputFormat output_format = OFORMAT_HUMAN; |
40055951 | 656 | const char *filename, *fmt, *output, *cache; |
26f54e9a | 657 | BlockBackend *blk; |
1585969c | 658 | BlockDriverState *bs; |
4534ff54 | 659 | int fix = 0; |
ce099547 KW |
660 | int flags = BDRV_O_CHECK; |
661 | bool writethrough; | |
7e7d56d9 | 662 | ImageCheck *check; |
f382d43a | 663 | bool quiet = false; |
eb769f74 | 664 | bool image_opts = false; |
335e9937 | 665 | bool force_share = false; |
1585969c AL |
666 | |
667 | fmt = NULL; | |
8599ea4c | 668 | output = NULL; |
40055951 | 669 | cache = BDRV_DEFAULT_CACHE; |
ce099547 | 670 | |
1585969c | 671 | for(;;) { |
8599ea4c FS |
672 | int option_index = 0; |
673 | static const struct option long_options[] = { | |
674 | {"help", no_argument, 0, 'h'}, | |
675 | {"format", required_argument, 0, 'f'}, | |
4fd6a984 | 676 | {"repair", required_argument, 0, 'r'}, |
8599ea4c | 677 | {"output", required_argument, 0, OPTION_OUTPUT}, |
3babeb15 | 678 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 679 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 680 | {"force-share", no_argument, 0, 'U'}, |
8599ea4c FS |
681 | {0, 0, 0, 0} |
682 | }; | |
335e9937 | 683 | c = getopt_long(argc, argv, ":hf:r:T:qU", |
8599ea4c | 684 | long_options, &option_index); |
b8fb60da | 685 | if (c == -1) { |
1585969c | 686 | break; |
b8fb60da | 687 | } |
1585969c | 688 | switch(c) { |
c9192973 SH |
689 | case ':': |
690 | missing_argument(argv[optind - 1]); | |
691 | break; | |
ef87394c | 692 | case '?': |
c9192973 SH |
693 | unrecognized_option(argv[optind - 1]); |
694 | break; | |
1585969c AL |
695 | case 'h': |
696 | help(); | |
697 | break; | |
698 | case 'f': | |
699 | fmt = optarg; | |
700 | break; | |
4534ff54 KW |
701 | case 'r': |
702 | flags |= BDRV_O_RDWR; | |
703 | ||
704 | if (!strcmp(optarg, "leaks")) { | |
705 | fix = BDRV_FIX_LEAKS; | |
706 | } else if (!strcmp(optarg, "all")) { | |
707 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; | |
708 | } else { | |
ac1307ab FZ |
709 | error_exit("Unknown option value for -r " |
710 | "(expecting 'leaks' or 'all'): %s", optarg); | |
4534ff54 KW |
711 | } |
712 | break; | |
8599ea4c FS |
713 | case OPTION_OUTPUT: |
714 | output = optarg; | |
715 | break; | |
40055951 HR |
716 | case 'T': |
717 | cache = optarg; | |
718 | break; | |
f382d43a MR |
719 | case 'q': |
720 | quiet = true; | |
721 | break; | |
335e9937 FZ |
722 | case 'U': |
723 | force_share = true; | |
724 | break; | |
3babeb15 DB |
725 | case OPTION_OBJECT: { |
726 | QemuOpts *opts; | |
727 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
728 | optarg, true); | |
729 | if (!opts) { | |
730 | return 1; | |
731 | } | |
732 | } break; | |
eb769f74 DB |
733 | case OPTION_IMAGE_OPTS: |
734 | image_opts = true; | |
735 | break; | |
1585969c AL |
736 | } |
737 | } | |
fc11eb26 | 738 | if (optind != argc - 1) { |
ac1307ab | 739 | error_exit("Expecting one image file name"); |
b8fb60da | 740 | } |
1585969c AL |
741 | filename = argv[optind++]; |
742 | ||
8599ea4c FS |
743 | if (output && !strcmp(output, "json")) { |
744 | output_format = OFORMAT_JSON; | |
745 | } else if (output && !strcmp(output, "human")) { | |
746 | output_format = OFORMAT_HUMAN; | |
747 | } else if (output) { | |
748 | error_report("--output must be used with human or json as argument."); | |
749 | return 1; | |
750 | } | |
751 | ||
3babeb15 DB |
752 | if (qemu_opts_foreach(&qemu_object_opts, |
753 | user_creatable_add_opts_foreach, | |
51b9b478 | 754 | NULL, NULL)) { |
3babeb15 DB |
755 | return 1; |
756 | } | |
757 | ||
ce099547 | 758 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
40055951 HR |
759 | if (ret < 0) { |
760 | error_report("Invalid source cache option: %s", cache); | |
761 | return 1; | |
762 | } | |
763 | ||
335e9937 FZ |
764 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
765 | force_share); | |
7e7d56d9 MA |
766 | if (!blk) { |
767 | return 1; | |
c2abccec | 768 | } |
7e7d56d9 | 769 | bs = blk_bs(blk); |
8599ea4c FS |
770 | |
771 | check = g_new0(ImageCheck, 1); | |
772 | ret = collect_image_check(bs, check, filename, fmt, fix); | |
e076f338 KW |
773 | |
774 | if (ret == -ENOTSUP) { | |
55d492d7 | 775 | error_report("This image format does not support checks"); |
fefddf95 | 776 | ret = 63; |
8599ea4c | 777 | goto fail; |
e076f338 KW |
778 | } |
779 | ||
8599ea4c FS |
780 | if (check->corruptions_fixed || check->leaks_fixed) { |
781 | int corruptions_fixed, leaks_fixed; | |
ccf34716 | 782 | |
8599ea4c FS |
783 | leaks_fixed = check->leaks_fixed; |
784 | corruptions_fixed = check->corruptions_fixed; | |
e076f338 | 785 | |
8599ea4c | 786 | if (output_format == OFORMAT_HUMAN) { |
f382d43a MR |
787 | qprintf(quiet, |
788 | "The following inconsistencies were found and repaired:\n\n" | |
789 | " %" PRId64 " leaked clusters\n" | |
790 | " %" PRId64 " corruptions\n\n" | |
791 | "Double checking the fixed image now...\n", | |
792 | check->leaks_fixed, | |
793 | check->corruptions_fixed); | |
e076f338 KW |
794 | } |
795 | ||
8599ea4c | 796 | ret = collect_image_check(bs, check, filename, fmt, 0); |
1585969c | 797 | |
8599ea4c FS |
798 | check->leaks_fixed = leaks_fixed; |
799 | check->corruptions_fixed = corruptions_fixed; | |
f8111c24 DXW |
800 | } |
801 | ||
832390a5 HR |
802 | if (!ret) { |
803 | switch (output_format) { | |
804 | case OFORMAT_HUMAN: | |
805 | dump_human_image_check(check, quiet); | |
806 | break; | |
807 | case OFORMAT_JSON: | |
808 | dump_json_image_check(check, quiet); | |
809 | break; | |
810 | } | |
c6bb9ad1 FS |
811 | } |
812 | ||
8599ea4c | 813 | if (ret || check->check_errors) { |
832390a5 HR |
814 | if (ret) { |
815 | error_report("Check failed: %s", strerror(-ret)); | |
816 | } else { | |
817 | error_report("Check failed"); | |
818 | } | |
8599ea4c FS |
819 | ret = 1; |
820 | goto fail; | |
c2abccec | 821 | } |
e076f338 | 822 | |
8599ea4c FS |
823 | if (check->corruptions) { |
824 | ret = 2; | |
825 | } else if (check->leaks) { | |
826 | ret = 3; | |
e076f338 | 827 | } else { |
8599ea4c | 828 | ret = 0; |
e076f338 | 829 | } |
8599ea4c FS |
830 | |
831 | fail: | |
832 | qapi_free_ImageCheck(check); | |
26f54e9a | 833 | blk_unref(blk); |
8599ea4c | 834 | return ret; |
1585969c AL |
835 | } |
836 | ||
d4a3238a HR |
837 | typedef struct CommonBlockJobCBInfo { |
838 | BlockDriverState *bs; | |
839 | Error **errp; | |
840 | } CommonBlockJobCBInfo; | |
841 | ||
842 | static void common_block_job_cb(void *opaque, int ret) | |
843 | { | |
844 | CommonBlockJobCBInfo *cbi = opaque; | |
845 | ||
846 | if (ret < 0) { | |
847 | error_setg_errno(cbi->errp, -ret, "Block job failed"); | |
848 | } | |
d4a3238a HR |
849 | } |
850 | ||
851 | static void run_block_job(BlockJob *job, Error **errp) | |
852 | { | |
b75536c9 | 853 | AioContext *aio_context = blk_get_aio_context(job->blk); |
4172a003 | 854 | int ret = 0; |
d4a3238a | 855 | |
9e944cb4 | 856 | aio_context_acquire(aio_context); |
4172a003 | 857 | block_job_ref(job); |
d4a3238a HR |
858 | do { |
859 | aio_poll(aio_context, true); | |
62547b8a JS |
860 | qemu_progress_print(job->len ? |
861 | ((float)job->offset / job->len * 100.f) : 0.0f, 0); | |
4172a003 | 862 | } while (!job->ready && !job->completed); |
d4a3238a | 863 | |
4172a003 SJ |
864 | if (!job->completed) { |
865 | ret = block_job_complete_sync(job, errp); | |
866 | } else { | |
867 | ret = job->ret; | |
868 | } | |
869 | block_job_unref(job); | |
9e944cb4 | 870 | aio_context_release(aio_context); |
687fa1d8 | 871 | |
4172a003 SJ |
872 | /* publish completion progress only when success */ |
873 | if (!ret) { | |
874 | qemu_progress_print(100.f, 0); | |
875 | } | |
d4a3238a HR |
876 | } |
877 | ||
ea2384d3 FB |
878 | static int img_commit(int argc, char **argv) |
879 | { | |
661a0f71 | 880 | int c, ret, flags; |
1b22bffd | 881 | const char *filename, *fmt, *cache, *base; |
26f54e9a | 882 | BlockBackend *blk; |
d4a3238a | 883 | BlockDriverState *bs, *base_bs; |
4ef85a9c | 884 | BlockJob *job; |
687fa1d8 | 885 | bool progress = false, quiet = false, drop = false; |
ce099547 | 886 | bool writethrough; |
d4a3238a HR |
887 | Error *local_err = NULL; |
888 | CommonBlockJobCBInfo cbi; | |
eb769f74 | 889 | bool image_opts = false; |
9e944cb4 | 890 | AioContext *aio_context; |
ea2384d3 FB |
891 | |
892 | fmt = NULL; | |
661a0f71 | 893 | cache = BDRV_DEFAULT_CACHE; |
1b22bffd | 894 | base = NULL; |
ea2384d3 | 895 | for(;;) { |
3babeb15 DB |
896 | static const struct option long_options[] = { |
897 | {"help", no_argument, 0, 'h'}, | |
898 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 899 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
3babeb15 DB |
900 | {0, 0, 0, 0} |
901 | }; | |
c9192973 | 902 | c = getopt_long(argc, argv, ":f:ht:b:dpq", |
3babeb15 | 903 | long_options, NULL); |
b8fb60da | 904 | if (c == -1) { |
ea2384d3 | 905 | break; |
b8fb60da | 906 | } |
ea2384d3 | 907 | switch(c) { |
c9192973 SH |
908 | case ':': |
909 | missing_argument(argv[optind - 1]); | |
910 | break; | |
ef87394c | 911 | case '?': |
c9192973 SH |
912 | unrecognized_option(argv[optind - 1]); |
913 | break; | |
ea2384d3 FB |
914 | case 'h': |
915 | help(); | |
916 | break; | |
917 | case 'f': | |
918 | fmt = optarg; | |
919 | break; | |
661a0f71 FS |
920 | case 't': |
921 | cache = optarg; | |
922 | break; | |
1b22bffd HR |
923 | case 'b': |
924 | base = optarg; | |
925 | /* -b implies -d */ | |
926 | drop = true; | |
927 | break; | |
9a86fe48 HR |
928 | case 'd': |
929 | drop = true; | |
930 | break; | |
687fa1d8 HR |
931 | case 'p': |
932 | progress = true; | |
933 | break; | |
f382d43a MR |
934 | case 'q': |
935 | quiet = true; | |
936 | break; | |
3babeb15 DB |
937 | case OPTION_OBJECT: { |
938 | QemuOpts *opts; | |
939 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
940 | optarg, true); | |
941 | if (!opts) { | |
942 | return 1; | |
943 | } | |
944 | } break; | |
eb769f74 DB |
945 | case OPTION_IMAGE_OPTS: |
946 | image_opts = true; | |
947 | break; | |
ea2384d3 FB |
948 | } |
949 | } | |
687fa1d8 HR |
950 | |
951 | /* Progress is not shown in Quiet mode */ | |
952 | if (quiet) { | |
953 | progress = false; | |
954 | } | |
955 | ||
fc11eb26 | 956 | if (optind != argc - 1) { |
ac1307ab | 957 | error_exit("Expecting one image file name"); |
b8fb60da | 958 | } |
ea2384d3 FB |
959 | filename = argv[optind++]; |
960 | ||
3babeb15 DB |
961 | if (qemu_opts_foreach(&qemu_object_opts, |
962 | user_creatable_add_opts_foreach, | |
51b9b478 | 963 | NULL, NULL)) { |
3babeb15 DB |
964 | return 1; |
965 | } | |
966 | ||
9a86fe48 | 967 | flags = BDRV_O_RDWR | BDRV_O_UNMAP; |
ce099547 | 968 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
969 | if (ret < 0) { |
970 | error_report("Invalid cache option: %s", cache); | |
a3981eb9 | 971 | return 1; |
661a0f71 FS |
972 | } |
973 | ||
335e9937 FZ |
974 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
975 | false); | |
7e7d56d9 MA |
976 | if (!blk) { |
977 | return 1; | |
c2abccec | 978 | } |
7e7d56d9 MA |
979 | bs = blk_bs(blk); |
980 | ||
687fa1d8 HR |
981 | qemu_progress_init(progress, 1.f); |
982 | qemu_progress_print(0.f, 100); | |
983 | ||
1b22bffd HR |
984 | if (base) { |
985 | base_bs = bdrv_find_backing_image(bs, base); | |
986 | if (!base_bs) { | |
6b33f3ae HR |
987 | error_setg(&local_err, |
988 | "Did not find '%s' in the backing chain of '%s'", | |
989 | base, filename); | |
1b22bffd HR |
990 | goto done; |
991 | } | |
992 | } else { | |
993 | /* This is different from QMP, which by default uses the deepest file in | |
994 | * the backing chain (i.e., the very base); however, the traditional | |
995 | * behavior of qemu-img commit is using the immediate backing file. */ | |
760e0063 | 996 | base_bs = backing_bs(bs); |
1b22bffd HR |
997 | if (!base_bs) { |
998 | error_setg(&local_err, "Image does not have a backing file"); | |
999 | goto done; | |
1000 | } | |
d4a3238a HR |
1001 | } |
1002 | ||
1003 | cbi = (CommonBlockJobCBInfo){ | |
1004 | .errp = &local_err, | |
1005 | .bs = bs, | |
1006 | }; | |
1007 | ||
9e944cb4 PB |
1008 | aio_context = bdrv_get_aio_context(bs); |
1009 | aio_context_acquire(aio_context); | |
47970dfb | 1010 | commit_active_start("commit", bs, base_bs, BLOCK_JOB_DEFAULT, 0, |
0db832f4 | 1011 | BLOCKDEV_ON_ERROR_REPORT, NULL, common_block_job_cb, |
78bbd910 | 1012 | &cbi, false, &local_err); |
9e944cb4 | 1013 | aio_context_release(aio_context); |
d4a3238a HR |
1014 | if (local_err) { |
1015 | goto done; | |
ea2384d3 FB |
1016 | } |
1017 | ||
3f09bfbc KW |
1018 | /* When the block job completes, the BlockBackend reference will point to |
1019 | * the old backing file. In order to avoid that the top image is already | |
1020 | * deleted, so we can still empty it afterwards, increment the reference | |
1021 | * counter here preemptively. */ | |
9a86fe48 | 1022 | if (!drop) { |
3f09bfbc | 1023 | bdrv_ref(bs); |
9a86fe48 HR |
1024 | } |
1025 | ||
4ef85a9c KW |
1026 | job = block_job_get("commit"); |
1027 | run_block_job(job, &local_err); | |
9a86fe48 HR |
1028 | if (local_err) { |
1029 | goto unref_backing; | |
1030 | } | |
1031 | ||
3f09bfbc KW |
1032 | if (!drop && bs->drv->bdrv_make_empty) { |
1033 | ret = bs->drv->bdrv_make_empty(bs); | |
9a86fe48 HR |
1034 | if (ret) { |
1035 | error_setg_errno(&local_err, -ret, "Could not empty %s", | |
1036 | filename); | |
1037 | goto unref_backing; | |
1038 | } | |
1039 | } | |
1040 | ||
1041 | unref_backing: | |
1042 | if (!drop) { | |
3f09bfbc | 1043 | bdrv_unref(bs); |
9a86fe48 | 1044 | } |
d4a3238a HR |
1045 | |
1046 | done: | |
687fa1d8 HR |
1047 | qemu_progress_end(); |
1048 | ||
26f54e9a | 1049 | blk_unref(blk); |
d4a3238a HR |
1050 | |
1051 | if (local_err) { | |
6936f299 | 1052 | error_report_err(local_err); |
c2abccec MK |
1053 | return 1; |
1054 | } | |
d4a3238a HR |
1055 | |
1056 | qprintf(quiet, "Image committed.\n"); | |
ea2384d3 FB |
1057 | return 0; |
1058 | } | |
1059 | ||
f58c7b35 TS |
1060 | /* |
1061 | * Returns true iff the first sector pointed to by 'buf' contains at least | |
1062 | * a non-NUL byte. | |
1063 | * | |
1064 | * 'pnum' is set to the number of sectors (including and immediately following | |
1065 | * the first one) that are known to be in the same allocated/unallocated state. | |
1066 | */ | |
ea2384d3 FB |
1067 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
1068 | { | |
1a6d39fd SH |
1069 | bool is_zero; |
1070 | int i; | |
ea2384d3 FB |
1071 | |
1072 | if (n <= 0) { | |
1073 | *pnum = 0; | |
1074 | return 0; | |
1075 | } | |
1a6d39fd | 1076 | is_zero = buffer_is_zero(buf, 512); |
ea2384d3 FB |
1077 | for(i = 1; i < n; i++) { |
1078 | buf += 512; | |
1a6d39fd | 1079 | if (is_zero != buffer_is_zero(buf, 512)) { |
ea2384d3 | 1080 | break; |
1a6d39fd | 1081 | } |
ea2384d3 FB |
1082 | } |
1083 | *pnum = i; | |
1a6d39fd | 1084 | return !is_zero; |
ea2384d3 FB |
1085 | } |
1086 | ||
a22f123c KW |
1087 | /* |
1088 | * Like is_allocated_sectors, but if the buffer starts with a used sector, | |
1089 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids | |
1090 | * breaking up write requests for only small sparse areas. | |
1091 | */ | |
1092 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, | |
1093 | int min) | |
1094 | { | |
1095 | int ret; | |
1096 | int num_checked, num_used; | |
1097 | ||
1098 | if (n < min) { | |
1099 | min = n; | |
1100 | } | |
1101 | ||
1102 | ret = is_allocated_sectors(buf, n, pnum); | |
1103 | if (!ret) { | |
1104 | return ret; | |
1105 | } | |
1106 | ||
1107 | num_used = *pnum; | |
1108 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1109 | n -= *pnum; | |
1110 | num_checked = num_used; | |
1111 | ||
1112 | while (n > 0) { | |
1113 | ret = is_allocated_sectors(buf, n, pnum); | |
1114 | ||
1115 | buf += BDRV_SECTOR_SIZE * *pnum; | |
1116 | n -= *pnum; | |
1117 | num_checked += *pnum; | |
1118 | if (ret) { | |
1119 | num_used = num_checked; | |
1120 | } else if (*pnum >= min) { | |
1121 | break; | |
1122 | } | |
1123 | } | |
1124 | ||
1125 | *pnum = num_used; | |
1126 | return 1; | |
1127 | } | |
1128 | ||
3e85c6fd KW |
1129 | /* |
1130 | * Compares two buffers sector by sector. Returns 0 if the first sector of both | |
1131 | * buffers matches, non-zero otherwise. | |
1132 | * | |
1133 | * pnum is set to the number of sectors (including and immediately following | |
1134 | * the first one) that are known to have the same comparison result | |
1135 | */ | |
1136 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, | |
1137 | int *pnum) | |
1138 | { | |
8c1ac475 RK |
1139 | bool res; |
1140 | int i; | |
3e85c6fd KW |
1141 | |
1142 | if (n <= 0) { | |
1143 | *pnum = 0; | |
1144 | return 0; | |
1145 | } | |
1146 | ||
1147 | res = !!memcmp(buf1, buf2, 512); | |
1148 | for(i = 1; i < n; i++) { | |
1149 | buf1 += 512; | |
1150 | buf2 += 512; | |
1151 | ||
1152 | if (!!memcmp(buf1, buf2, 512) != res) { | |
1153 | break; | |
1154 | } | |
1155 | } | |
1156 | ||
1157 | *pnum = i; | |
1158 | return res; | |
1159 | } | |
1160 | ||
80ee15a6 | 1161 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
ea2384d3 | 1162 | |
d14ed18c MR |
1163 | static int64_t sectors_to_bytes(int64_t sectors) |
1164 | { | |
1165 | return sectors << BDRV_SECTOR_BITS; | |
1166 | } | |
1167 | ||
1168 | static int64_t sectors_to_process(int64_t total, int64_t from) | |
1169 | { | |
1170 | return MIN(total - from, IO_BUF_SIZE >> BDRV_SECTOR_BITS); | |
1171 | } | |
1172 | ||
1173 | /* | |
1174 | * Check if passed sectors are empty (not allocated or contain only 0 bytes) | |
1175 | * | |
1176 | * Returns 0 in case sectors are filled with 0, 1 if sectors contain non-zero | |
1177 | * data and negative value on error. | |
1178 | * | |
f1d3cd79 | 1179 | * @param blk: BlockBackend for the image |
d14ed18c MR |
1180 | * @param sect_num: Number of first sector to check |
1181 | * @param sect_count: Number of sectors to check | |
1182 | * @param filename: Name of disk file we are checking (logging purpose) | |
1183 | * @param buffer: Allocated buffer for storing read data | |
1184 | * @param quiet: Flag for quiet mode | |
1185 | */ | |
f1d3cd79 | 1186 | static int check_empty_sectors(BlockBackend *blk, int64_t sect_num, |
d14ed18c MR |
1187 | int sect_count, const char *filename, |
1188 | uint8_t *buffer, bool quiet) | |
1189 | { | |
1190 | int pnum, ret = 0; | |
9166920a EB |
1191 | ret = blk_pread(blk, sect_num << BDRV_SECTOR_BITS, buffer, |
1192 | sect_count << BDRV_SECTOR_BITS); | |
d14ed18c MR |
1193 | if (ret < 0) { |
1194 | error_report("Error while reading offset %" PRId64 " of %s: %s", | |
1195 | sectors_to_bytes(sect_num), filename, strerror(-ret)); | |
1196 | return ret; | |
1197 | } | |
1198 | ret = is_allocated_sectors(buffer, sect_count, &pnum); | |
1199 | if (ret || pnum != sect_count) { | |
1200 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", | |
1201 | sectors_to_bytes(ret ? sect_num : sect_num + pnum)); | |
1202 | return 1; | |
1203 | } | |
1204 | ||
1205 | return 0; | |
1206 | } | |
1207 | ||
1208 | /* | |
1209 | * Compares two images. Exit codes: | |
1210 | * | |
1211 | * 0 - Images are identical | |
1212 | * 1 - Images differ | |
1213 | * >1 - Error occurred | |
1214 | */ | |
1215 | static int img_compare(int argc, char **argv) | |
1216 | { | |
40055951 | 1217 | const char *fmt1 = NULL, *fmt2 = NULL, *cache, *filename1, *filename2; |
26f54e9a | 1218 | BlockBackend *blk1, *blk2; |
d14ed18c MR |
1219 | BlockDriverState *bs1, *bs2; |
1220 | int64_t total_sectors1, total_sectors2; | |
1221 | uint8_t *buf1 = NULL, *buf2 = NULL; | |
1222 | int pnum1, pnum2; | |
1223 | int allocated1, allocated2; | |
1224 | int ret = 0; /* return value - 0 Ident, 1 Different, >1 Error */ | |
1225 | bool progress = false, quiet = false, strict = false; | |
40055951 | 1226 | int flags; |
ce099547 | 1227 | bool writethrough; |
d14ed18c MR |
1228 | int64_t total_sectors; |
1229 | int64_t sector_num = 0; | |
1230 | int64_t nb_sectors; | |
1231 | int c, pnum; | |
d14ed18c | 1232 | uint64_t progress_base; |
eb769f74 | 1233 | bool image_opts = false; |
335e9937 | 1234 | bool force_share = false; |
d14ed18c | 1235 | |
40055951 | 1236 | cache = BDRV_DEFAULT_CACHE; |
d14ed18c | 1237 | for (;;) { |
3babeb15 DB |
1238 | static const struct option long_options[] = { |
1239 | {"help", no_argument, 0, 'h'}, | |
1240 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 1241 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 1242 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
1243 | {0, 0, 0, 0} |
1244 | }; | |
335e9937 | 1245 | c = getopt_long(argc, argv, ":hf:F:T:pqsU", |
3babeb15 | 1246 | long_options, NULL); |
d14ed18c MR |
1247 | if (c == -1) { |
1248 | break; | |
1249 | } | |
1250 | switch (c) { | |
c9192973 SH |
1251 | case ':': |
1252 | missing_argument(argv[optind - 1]); | |
1253 | break; | |
d14ed18c | 1254 | case '?': |
c9192973 SH |
1255 | unrecognized_option(argv[optind - 1]); |
1256 | break; | |
d14ed18c MR |
1257 | case 'h': |
1258 | help(); | |
1259 | break; | |
1260 | case 'f': | |
1261 | fmt1 = optarg; | |
1262 | break; | |
1263 | case 'F': | |
1264 | fmt2 = optarg; | |
1265 | break; | |
40055951 HR |
1266 | case 'T': |
1267 | cache = optarg; | |
1268 | break; | |
d14ed18c MR |
1269 | case 'p': |
1270 | progress = true; | |
1271 | break; | |
1272 | case 'q': | |
1273 | quiet = true; | |
1274 | break; | |
1275 | case 's': | |
1276 | strict = true; | |
1277 | break; | |
335e9937 FZ |
1278 | case 'U': |
1279 | force_share = true; | |
1280 | break; | |
3babeb15 DB |
1281 | case OPTION_OBJECT: { |
1282 | QemuOpts *opts; | |
1283 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
1284 | optarg, true); | |
1285 | if (!opts) { | |
1286 | ret = 2; | |
1287 | goto out4; | |
1288 | } | |
1289 | } break; | |
eb769f74 DB |
1290 | case OPTION_IMAGE_OPTS: |
1291 | image_opts = true; | |
1292 | break; | |
d14ed18c MR |
1293 | } |
1294 | } | |
1295 | ||
1296 | /* Progress is not shown in Quiet mode */ | |
1297 | if (quiet) { | |
1298 | progress = false; | |
1299 | } | |
1300 | ||
1301 | ||
fc11eb26 | 1302 | if (optind != argc - 2) { |
ac1307ab | 1303 | error_exit("Expecting two image file names"); |
d14ed18c MR |
1304 | } |
1305 | filename1 = argv[optind++]; | |
1306 | filename2 = argv[optind++]; | |
1307 | ||
3babeb15 DB |
1308 | if (qemu_opts_foreach(&qemu_object_opts, |
1309 | user_creatable_add_opts_foreach, | |
51b9b478 | 1310 | NULL, NULL)) { |
3babeb15 DB |
1311 | ret = 2; |
1312 | goto out4; | |
1313 | } | |
1314 | ||
cbda016d SH |
1315 | /* Initialize before goto out */ |
1316 | qemu_progress_init(progress, 2.0); | |
1317 | ||
ce099547 KW |
1318 | flags = 0; |
1319 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
40055951 HR |
1320 | if (ret < 0) { |
1321 | error_report("Invalid source cache option: %s", cache); | |
1322 | ret = 2; | |
1323 | goto out3; | |
1324 | } | |
1325 | ||
335e9937 FZ |
1326 | blk1 = img_open(image_opts, filename1, fmt1, flags, writethrough, quiet, |
1327 | force_share); | |
7e7d56d9 | 1328 | if (!blk1) { |
d14ed18c | 1329 | ret = 2; |
7e7d56d9 | 1330 | goto out3; |
d14ed18c MR |
1331 | } |
1332 | ||
335e9937 FZ |
1333 | blk2 = img_open(image_opts, filename2, fmt2, flags, writethrough, quiet, |
1334 | force_share); | |
7e7d56d9 | 1335 | if (!blk2) { |
d14ed18c | 1336 | ret = 2; |
7e7d56d9 | 1337 | goto out2; |
d14ed18c | 1338 | } |
eb769f74 | 1339 | bs1 = blk_bs(blk1); |
7e7d56d9 | 1340 | bs2 = blk_bs(blk2); |
d14ed18c | 1341 | |
f1d3cd79 HR |
1342 | buf1 = blk_blockalign(blk1, IO_BUF_SIZE); |
1343 | buf2 = blk_blockalign(blk2, IO_BUF_SIZE); | |
1344 | total_sectors1 = blk_nb_sectors(blk1); | |
52bf1e72 MA |
1345 | if (total_sectors1 < 0) { |
1346 | error_report("Can't get size of %s: %s", | |
1347 | filename1, strerror(-total_sectors1)); | |
1348 | ret = 4; | |
1349 | goto out; | |
1350 | } | |
f1d3cd79 | 1351 | total_sectors2 = blk_nb_sectors(blk2); |
52bf1e72 MA |
1352 | if (total_sectors2 < 0) { |
1353 | error_report("Can't get size of %s: %s", | |
1354 | filename2, strerror(-total_sectors2)); | |
1355 | ret = 4; | |
1356 | goto out; | |
1357 | } | |
d14ed18c MR |
1358 | total_sectors = MIN(total_sectors1, total_sectors2); |
1359 | progress_base = MAX(total_sectors1, total_sectors2); | |
1360 | ||
1361 | qemu_progress_print(0, 100); | |
1362 | ||
1363 | if (strict && total_sectors1 != total_sectors2) { | |
1364 | ret = 1; | |
1365 | qprintf(quiet, "Strict mode: Image size mismatch!\n"); | |
1366 | goto out; | |
1367 | } | |
1368 | ||
1369 | for (;;) { | |
25ad8e6e | 1370 | int64_t status1, status2; |
67a0fd2a FZ |
1371 | BlockDriverState *file; |
1372 | ||
d14ed18c MR |
1373 | nb_sectors = sectors_to_process(total_sectors, sector_num); |
1374 | if (nb_sectors <= 0) { | |
1375 | break; | |
1376 | } | |
25ad8e6e FZ |
1377 | status1 = bdrv_get_block_status_above(bs1, NULL, sector_num, |
1378 | total_sectors1 - sector_num, | |
67a0fd2a | 1379 | &pnum1, &file); |
25ad8e6e | 1380 | if (status1 < 0) { |
d14ed18c MR |
1381 | ret = 3; |
1382 | error_report("Sector allocation test failed for %s", filename1); | |
1383 | goto out; | |
1384 | } | |
25ad8e6e | 1385 | allocated1 = status1 & BDRV_BLOCK_ALLOCATED; |
d14ed18c | 1386 | |
25ad8e6e FZ |
1387 | status2 = bdrv_get_block_status_above(bs2, NULL, sector_num, |
1388 | total_sectors2 - sector_num, | |
67a0fd2a | 1389 | &pnum2, &file); |
25ad8e6e | 1390 | if (status2 < 0) { |
d14ed18c MR |
1391 | ret = 3; |
1392 | error_report("Sector allocation test failed for %s", filename2); | |
1393 | goto out; | |
1394 | } | |
25ad8e6e FZ |
1395 | allocated2 = status2 & BDRV_BLOCK_ALLOCATED; |
1396 | if (pnum1) { | |
1397 | nb_sectors = MIN(nb_sectors, pnum1); | |
1398 | } | |
1399 | if (pnum2) { | |
1400 | nb_sectors = MIN(nb_sectors, pnum2); | |
1401 | } | |
d14ed18c | 1402 | |
25ad8e6e FZ |
1403 | if (strict) { |
1404 | if ((status1 & ~BDRV_BLOCK_OFFSET_MASK) != | |
1405 | (status2 & ~BDRV_BLOCK_OFFSET_MASK)) { | |
1406 | ret = 1; | |
1407 | qprintf(quiet, "Strict mode: Offset %" PRId64 | |
1408 | " block status mismatch!\n", | |
1409 | sectors_to_bytes(sector_num)); | |
1410 | goto out; | |
1411 | } | |
1412 | } | |
1413 | if ((status1 & BDRV_BLOCK_ZERO) && (status2 & BDRV_BLOCK_ZERO)) { | |
1414 | nb_sectors = MIN(pnum1, pnum2); | |
1415 | } else if (allocated1 == allocated2) { | |
d14ed18c | 1416 | if (allocated1) { |
9166920a EB |
1417 | ret = blk_pread(blk1, sector_num << BDRV_SECTOR_BITS, buf1, |
1418 | nb_sectors << BDRV_SECTOR_BITS); | |
d14ed18c MR |
1419 | if (ret < 0) { |
1420 | error_report("Error while reading offset %" PRId64 " of %s:" | |
1421 | " %s", sectors_to_bytes(sector_num), filename1, | |
1422 | strerror(-ret)); | |
1423 | ret = 4; | |
1424 | goto out; | |
1425 | } | |
9166920a EB |
1426 | ret = blk_pread(blk2, sector_num << BDRV_SECTOR_BITS, buf2, |
1427 | nb_sectors << BDRV_SECTOR_BITS); | |
d14ed18c MR |
1428 | if (ret < 0) { |
1429 | error_report("Error while reading offset %" PRId64 | |
1430 | " of %s: %s", sectors_to_bytes(sector_num), | |
1431 | filename2, strerror(-ret)); | |
1432 | ret = 4; | |
1433 | goto out; | |
1434 | } | |
1435 | ret = compare_sectors(buf1, buf2, nb_sectors, &pnum); | |
1436 | if (ret || pnum != nb_sectors) { | |
d14ed18c MR |
1437 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
1438 | sectors_to_bytes( | |
1439 | ret ? sector_num : sector_num + pnum)); | |
36452f12 | 1440 | ret = 1; |
d14ed18c MR |
1441 | goto out; |
1442 | } | |
1443 | } | |
1444 | } else { | |
d14ed18c MR |
1445 | |
1446 | if (allocated1) { | |
f1d3cd79 | 1447 | ret = check_empty_sectors(blk1, sector_num, nb_sectors, |
d14ed18c MR |
1448 | filename1, buf1, quiet); |
1449 | } else { | |
f1d3cd79 | 1450 | ret = check_empty_sectors(blk2, sector_num, nb_sectors, |
d14ed18c MR |
1451 | filename2, buf1, quiet); |
1452 | } | |
1453 | if (ret) { | |
1454 | if (ret < 0) { | |
d14ed18c MR |
1455 | error_report("Error while reading offset %" PRId64 ": %s", |
1456 | sectors_to_bytes(sector_num), strerror(-ret)); | |
36452f12 | 1457 | ret = 4; |
d14ed18c MR |
1458 | } |
1459 | goto out; | |
1460 | } | |
1461 | } | |
1462 | sector_num += nb_sectors; | |
1463 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1464 | } | |
1465 | ||
1466 | if (total_sectors1 != total_sectors2) { | |
f1d3cd79 | 1467 | BlockBackend *blk_over; |
d14ed18c MR |
1468 | int64_t total_sectors_over; |
1469 | const char *filename_over; | |
1470 | ||
1471 | qprintf(quiet, "Warning: Image size mismatch!\n"); | |
1472 | if (total_sectors1 > total_sectors2) { | |
1473 | total_sectors_over = total_sectors1; | |
f1d3cd79 | 1474 | blk_over = blk1; |
d14ed18c MR |
1475 | filename_over = filename1; |
1476 | } else { | |
1477 | total_sectors_over = total_sectors2; | |
f1d3cd79 | 1478 | blk_over = blk2; |
d14ed18c MR |
1479 | filename_over = filename2; |
1480 | } | |
1481 | ||
1482 | for (;;) { | |
51b0a488 EB |
1483 | int64_t count; |
1484 | ||
d14ed18c MR |
1485 | nb_sectors = sectors_to_process(total_sectors_over, sector_num); |
1486 | if (nb_sectors <= 0) { | |
1487 | break; | |
1488 | } | |
51b0a488 EB |
1489 | ret = bdrv_is_allocated_above(blk_bs(blk_over), NULL, |
1490 | sector_num * BDRV_SECTOR_SIZE, | |
1491 | nb_sectors * BDRV_SECTOR_SIZE, | |
1492 | &count); | |
d14ed18c MR |
1493 | if (ret < 0) { |
1494 | ret = 3; | |
1495 | error_report("Sector allocation test failed for %s", | |
1496 | filename_over); | |
1497 | goto out; | |
1498 | ||
1499 | } | |
51b0a488 EB |
1500 | /* TODO relax this once bdrv_is_allocated_above does not enforce |
1501 | * sector alignment */ | |
1502 | assert(QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)); | |
1503 | nb_sectors = count >> BDRV_SECTOR_BITS; | |
d14ed18c | 1504 | if (ret) { |
f1d3cd79 | 1505 | ret = check_empty_sectors(blk_over, sector_num, nb_sectors, |
d14ed18c MR |
1506 | filename_over, buf1, quiet); |
1507 | if (ret) { | |
1508 | if (ret < 0) { | |
d14ed18c MR |
1509 | error_report("Error while reading offset %" PRId64 |
1510 | " of %s: %s", sectors_to_bytes(sector_num), | |
1511 | filename_over, strerror(-ret)); | |
36452f12 | 1512 | ret = 4; |
d14ed18c MR |
1513 | } |
1514 | goto out; | |
1515 | } | |
1516 | } | |
1517 | sector_num += nb_sectors; | |
1518 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); | |
1519 | } | |
1520 | } | |
1521 | ||
1522 | qprintf(quiet, "Images are identical.\n"); | |
1523 | ret = 0; | |
1524 | ||
1525 | out: | |
d14ed18c MR |
1526 | qemu_vfree(buf1); |
1527 | qemu_vfree(buf2); | |
26f54e9a | 1528 | blk_unref(blk2); |
d14ed18c | 1529 | out2: |
26f54e9a | 1530 | blk_unref(blk1); |
d14ed18c MR |
1531 | out3: |
1532 | qemu_progress_end(); | |
3babeb15 | 1533 | out4: |
d14ed18c MR |
1534 | return ret; |
1535 | } | |
1536 | ||
690c7301 KW |
1537 | enum ImgConvertBlockStatus { |
1538 | BLK_DATA, | |
1539 | BLK_ZERO, | |
1540 | BLK_BACKING_FILE, | |
1541 | }; | |
1542 | ||
2d9187bc PL |
1543 | #define MAX_COROUTINES 16 |
1544 | ||
690c7301 KW |
1545 | typedef struct ImgConvertState { |
1546 | BlockBackend **src; | |
1547 | int64_t *src_sectors; | |
2d9187bc | 1548 | int src_num; |
690c7301 KW |
1549 | int64_t total_sectors; |
1550 | int64_t allocated_sectors; | |
2d9187bc PL |
1551 | int64_t allocated_done; |
1552 | int64_t sector_num; | |
1553 | int64_t wr_offs; | |
690c7301 KW |
1554 | enum ImgConvertBlockStatus status; |
1555 | int64_t sector_next_status; | |
1556 | BlockBackend *target; | |
1557 | bool has_zero_init; | |
1558 | bool compressed; | |
1559 | bool target_has_backing; | |
2d9187bc | 1560 | bool wr_in_order; |
690c7301 KW |
1561 | int min_sparse; |
1562 | size_t cluster_sectors; | |
1563 | size_t buf_sectors; | |
9fd77f99 | 1564 | long num_coroutines; |
2d9187bc PL |
1565 | int running_coroutines; |
1566 | Coroutine *co[MAX_COROUTINES]; | |
1567 | int64_t wait_sector_num[MAX_COROUTINES]; | |
1568 | CoMutex lock; | |
1569 | int ret; | |
690c7301 KW |
1570 | } ImgConvertState; |
1571 | ||
2d9187bc PL |
1572 | static void convert_select_part(ImgConvertState *s, int64_t sector_num, |
1573 | int *src_cur, int64_t *src_cur_offset) | |
690c7301 | 1574 | { |
2d9187bc PL |
1575 | *src_cur = 0; |
1576 | *src_cur_offset = 0; | |
1577 | while (sector_num - *src_cur_offset >= s->src_sectors[*src_cur]) { | |
1578 | *src_cur_offset += s->src_sectors[*src_cur]; | |
1579 | (*src_cur)++; | |
1580 | assert(*src_cur < s->src_num); | |
690c7301 KW |
1581 | } |
1582 | } | |
1583 | ||
1584 | static int convert_iteration_sectors(ImgConvertState *s, int64_t sector_num) | |
1585 | { | |
2d9187bc PL |
1586 | int64_t ret, src_cur_offset; |
1587 | int n, src_cur; | |
690c7301 | 1588 | |
2d9187bc | 1589 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
690c7301 KW |
1590 | |
1591 | assert(s->total_sectors > sector_num); | |
1592 | n = MIN(s->total_sectors - sector_num, BDRV_REQUEST_MAX_SECTORS); | |
1593 | ||
1594 | if (s->sector_next_status <= sector_num) { | |
67a0fd2a | 1595 | BlockDriverState *file; |
9f1b92ad VSO |
1596 | if (s->target_has_backing) { |
1597 | ret = bdrv_get_block_status(blk_bs(s->src[src_cur]), | |
1598 | sector_num - src_cur_offset, | |
1599 | n, &n, &file); | |
1600 | } else { | |
1601 | ret = bdrv_get_block_status_above(blk_bs(s->src[src_cur]), NULL, | |
1602 | sector_num - src_cur_offset, | |
1603 | n, &n, &file); | |
1604 | } | |
690c7301 KW |
1605 | if (ret < 0) { |
1606 | return ret; | |
1607 | } | |
1608 | ||
1609 | if (ret & BDRV_BLOCK_ZERO) { | |
1610 | s->status = BLK_ZERO; | |
1611 | } else if (ret & BDRV_BLOCK_DATA) { | |
1612 | s->status = BLK_DATA; | |
690c7301 | 1613 | } else { |
9f1b92ad | 1614 | s->status = s->target_has_backing ? BLK_BACKING_FILE : BLK_DATA; |
690c7301 KW |
1615 | } |
1616 | ||
1617 | s->sector_next_status = sector_num + n; | |
1618 | } | |
1619 | ||
1620 | n = MIN(n, s->sector_next_status - sector_num); | |
1621 | if (s->status == BLK_DATA) { | |
1622 | n = MIN(n, s->buf_sectors); | |
1623 | } | |
1624 | ||
1625 | /* We need to write complete clusters for compressed images, so if an | |
1626 | * unallocated area is shorter than that, we must consider the whole | |
1627 | * cluster allocated. */ | |
1628 | if (s->compressed) { | |
1629 | if (n < s->cluster_sectors) { | |
1630 | n = MIN(s->cluster_sectors, s->total_sectors - sector_num); | |
1631 | s->status = BLK_DATA; | |
1632 | } else { | |
1633 | n = QEMU_ALIGN_DOWN(n, s->cluster_sectors); | |
1634 | } | |
1635 | } | |
1636 | ||
1637 | return n; | |
1638 | } | |
1639 | ||
2d9187bc PL |
1640 | static int coroutine_fn convert_co_read(ImgConvertState *s, int64_t sector_num, |
1641 | int nb_sectors, uint8_t *buf) | |
690c7301 | 1642 | { |
2d9187bc PL |
1643 | int n, ret; |
1644 | QEMUIOVector qiov; | |
1645 | struct iovec iov; | |
690c7301 | 1646 | |
690c7301 KW |
1647 | assert(nb_sectors <= s->buf_sectors); |
1648 | while (nb_sectors > 0) { | |
1649 | BlockBackend *blk; | |
2d9187bc PL |
1650 | int src_cur; |
1651 | int64_t bs_sectors, src_cur_offset; | |
690c7301 KW |
1652 | |
1653 | /* In the case of compression with multiple source files, we can get a | |
1654 | * nb_sectors that spreads into the next part. So we must be able to | |
1655 | * read across multiple BDSes for one convert_read() call. */ | |
2d9187bc PL |
1656 | convert_select_part(s, sector_num, &src_cur, &src_cur_offset); |
1657 | blk = s->src[src_cur]; | |
1658 | bs_sectors = s->src_sectors[src_cur]; | |
1659 | ||
1660 | n = MIN(nb_sectors, bs_sectors - (sector_num - src_cur_offset)); | |
1661 | iov.iov_base = buf; | |
1662 | iov.iov_len = n << BDRV_SECTOR_BITS; | |
1663 | qemu_iovec_init_external(&qiov, &iov, 1); | |
1664 | ||
1665 | ret = blk_co_preadv( | |
1666 | blk, (sector_num - src_cur_offset) << BDRV_SECTOR_BITS, | |
1667 | n << BDRV_SECTOR_BITS, &qiov, 0); | |
690c7301 KW |
1668 | if (ret < 0) { |
1669 | return ret; | |
1670 | } | |
1671 | ||
1672 | sector_num += n; | |
1673 | nb_sectors -= n; | |
1674 | buf += n * BDRV_SECTOR_SIZE; | |
1675 | } | |
1676 | ||
1677 | return 0; | |
1678 | } | |
1679 | ||
2d9187bc PL |
1680 | |
1681 | static int coroutine_fn convert_co_write(ImgConvertState *s, int64_t sector_num, | |
1682 | int nb_sectors, uint8_t *buf, | |
1683 | enum ImgConvertBlockStatus status) | |
690c7301 KW |
1684 | { |
1685 | int ret; | |
2d9187bc PL |
1686 | QEMUIOVector qiov; |
1687 | struct iovec iov; | |
690c7301 KW |
1688 | |
1689 | while (nb_sectors > 0) { | |
1690 | int n = nb_sectors; | |
db933fbe LC |
1691 | BdrvRequestFlags flags = s->compressed ? BDRV_REQ_WRITE_COMPRESSED : 0; |
1692 | ||
2d9187bc | 1693 | switch (status) { |
690c7301 KW |
1694 | case BLK_BACKING_FILE: |
1695 | /* If we have a backing file, leave clusters unallocated that are | |
1696 | * unallocated in the source image, so that the backing file is | |
1697 | * visible at the respective offset. */ | |
1698 | assert(s->target_has_backing); | |
1699 | break; | |
1700 | ||
1701 | case BLK_DATA: | |
db933fbe LC |
1702 | /* If we're told to keep the target fully allocated (-S 0) or there |
1703 | * is real non-zero data, we must write it. Otherwise we can treat | |
1704 | * it as zero sectors. | |
1705 | * Compressed clusters need to be written as a whole, so in that | |
1706 | * case we can only save the write if the buffer is completely | |
1707 | * zeroed. */ | |
690c7301 | 1708 | if (!s->min_sparse || |
db933fbe LC |
1709 | (!s->compressed && |
1710 | is_allocated_sectors_min(buf, n, &n, s->min_sparse)) || | |
1711 | (s->compressed && | |
1712 | !buffer_is_zero(buf, n * BDRV_SECTOR_SIZE))) | |
690c7301 | 1713 | { |
2d9187bc PL |
1714 | iov.iov_base = buf; |
1715 | iov.iov_len = n << BDRV_SECTOR_BITS; | |
1716 | qemu_iovec_init_external(&qiov, &iov, 1); | |
1717 | ||
1718 | ret = blk_co_pwritev(s->target, sector_num << BDRV_SECTOR_BITS, | |
db933fbe | 1719 | n << BDRV_SECTOR_BITS, &qiov, flags); |
690c7301 KW |
1720 | if (ret < 0) { |
1721 | return ret; | |
1722 | } | |
1723 | break; | |
1724 | } | |
1725 | /* fall-through */ | |
1726 | ||
1727 | case BLK_ZERO: | |
1728 | if (s->has_zero_init) { | |
db933fbe | 1729 | assert(!s->target_has_backing); |
690c7301 KW |
1730 | break; |
1731 | } | |
2d9187bc PL |
1732 | ret = blk_co_pwrite_zeroes(s->target, |
1733 | sector_num << BDRV_SECTOR_BITS, | |
1734 | n << BDRV_SECTOR_BITS, 0); | |
690c7301 KW |
1735 | if (ret < 0) { |
1736 | return ret; | |
1737 | } | |
1738 | break; | |
1739 | } | |
1740 | ||
1741 | sector_num += n; | |
1742 | nb_sectors -= n; | |
1743 | buf += n * BDRV_SECTOR_SIZE; | |
1744 | } | |
1745 | ||
1746 | return 0; | |
1747 | } | |
1748 | ||
2d9187bc | 1749 | static void coroutine_fn convert_co_do_copy(void *opaque) |
690c7301 | 1750 | { |
2d9187bc | 1751 | ImgConvertState *s = opaque; |
690c7301 | 1752 | uint8_t *buf = NULL; |
2d9187bc PL |
1753 | int ret, i; |
1754 | int index = -1; | |
1755 | ||
1756 | for (i = 0; i < s->num_coroutines; i++) { | |
1757 | if (s->co[i] == qemu_coroutine_self()) { | |
1758 | index = i; | |
1759 | break; | |
1760 | } | |
1761 | } | |
1762 | assert(index >= 0); | |
1763 | ||
1764 | s->running_coroutines++; | |
1765 | buf = blk_blockalign(s->target, s->buf_sectors * BDRV_SECTOR_SIZE); | |
1766 | ||
1767 | while (1) { | |
1768 | int n; | |
1769 | int64_t sector_num; | |
1770 | enum ImgConvertBlockStatus status; | |
1771 | ||
1772 | qemu_co_mutex_lock(&s->lock); | |
1773 | if (s->ret != -EINPROGRESS || s->sector_num >= s->total_sectors) { | |
1774 | qemu_co_mutex_unlock(&s->lock); | |
b91127ed | 1775 | break; |
2d9187bc PL |
1776 | } |
1777 | n = convert_iteration_sectors(s, s->sector_num); | |
1778 | if (n < 0) { | |
1779 | qemu_co_mutex_unlock(&s->lock); | |
1780 | s->ret = n; | |
b91127ed | 1781 | break; |
2d9187bc PL |
1782 | } |
1783 | /* save current sector and allocation status to local variables */ | |
1784 | sector_num = s->sector_num; | |
1785 | status = s->status; | |
1786 | if (!s->min_sparse && s->status == BLK_ZERO) { | |
1787 | n = MIN(n, s->buf_sectors); | |
1788 | } | |
1789 | /* increment global sector counter so that other coroutines can | |
1790 | * already continue reading beyond this request */ | |
1791 | s->sector_num += n; | |
1792 | qemu_co_mutex_unlock(&s->lock); | |
1793 | ||
1794 | if (status == BLK_DATA || (!s->min_sparse && status == BLK_ZERO)) { | |
1795 | s->allocated_done += n; | |
1796 | qemu_progress_print(100.0 * s->allocated_done / | |
1797 | s->allocated_sectors, 0); | |
1798 | } | |
1799 | ||
1800 | if (status == BLK_DATA) { | |
1801 | ret = convert_co_read(s, sector_num, n, buf); | |
1802 | if (ret < 0) { | |
1803 | error_report("error while reading sector %" PRId64 | |
1804 | ": %s", sector_num, strerror(-ret)); | |
1805 | s->ret = ret; | |
2d9187bc PL |
1806 | } |
1807 | } else if (!s->min_sparse && status == BLK_ZERO) { | |
1808 | status = BLK_DATA; | |
1809 | memset(buf, 0x00, n * BDRV_SECTOR_SIZE); | |
1810 | } | |
1811 | ||
1812 | if (s->wr_in_order) { | |
1813 | /* keep writes in order */ | |
b91127ed | 1814 | while (s->wr_offs != sector_num && s->ret == -EINPROGRESS) { |
2d9187bc PL |
1815 | s->wait_sector_num[index] = sector_num; |
1816 | qemu_coroutine_yield(); | |
1817 | } | |
1818 | s->wait_sector_num[index] = -1; | |
1819 | } | |
1820 | ||
b91127ed AN |
1821 | if (s->ret == -EINPROGRESS) { |
1822 | ret = convert_co_write(s, sector_num, n, buf, status); | |
1823 | if (ret < 0) { | |
1824 | error_report("error while writing sector %" PRId64 | |
1825 | ": %s", sector_num, strerror(-ret)); | |
1826 | s->ret = ret; | |
1827 | } | |
2d9187bc PL |
1828 | } |
1829 | ||
1830 | if (s->wr_in_order) { | |
1831 | /* reenter the coroutine that might have waited | |
1832 | * for this write to complete */ | |
1833 | s->wr_offs = sector_num + n; | |
1834 | for (i = 0; i < s->num_coroutines; i++) { | |
1835 | if (s->co[i] && s->wait_sector_num[i] == s->wr_offs) { | |
1836 | /* | |
1837 | * A -> B -> A cannot occur because A has | |
1838 | * s->wait_sector_num[i] == -1 during A -> B. Therefore | |
1839 | * B will never enter A during this time window. | |
1840 | */ | |
1841 | qemu_coroutine_enter(s->co[i]); | |
1842 | break; | |
1843 | } | |
1844 | } | |
1845 | } | |
1846 | } | |
1847 | ||
2d9187bc PL |
1848 | qemu_vfree(buf); |
1849 | s->co[index] = NULL; | |
1850 | s->running_coroutines--; | |
1851 | if (!s->running_coroutines && s->ret == -EINPROGRESS) { | |
1852 | /* the convert job finished successfully */ | |
1853 | s->ret = 0; | |
1854 | } | |
1855 | } | |
1856 | ||
1857 | static int convert_do_copy(ImgConvertState *s) | |
1858 | { | |
1859 | int ret, i, n; | |
1860 | int64_t sector_num = 0; | |
690c7301 KW |
1861 | |
1862 | /* Check whether we have zero initialisation or can get it efficiently */ | |
1863 | s->has_zero_init = s->min_sparse && !s->target_has_backing | |
1864 | ? bdrv_has_zero_init(blk_bs(s->target)) | |
1865 | : false; | |
1866 | ||
1867 | if (!s->has_zero_init && !s->target_has_backing && | |
1868 | bdrv_can_write_zeroes_with_unmap(blk_bs(s->target))) | |
1869 | { | |
720ff280 | 1870 | ret = blk_make_zero(s->target, BDRV_REQ_MAY_UNMAP); |
690c7301 KW |
1871 | if (ret == 0) { |
1872 | s->has_zero_init = true; | |
1873 | } | |
1874 | } | |
1875 | ||
1876 | /* Allocate buffer for copied data. For compressed images, only one cluster | |
1877 | * can be copied at a time. */ | |
1878 | if (s->compressed) { | |
1879 | if (s->cluster_sectors <= 0 || s->cluster_sectors > s->buf_sectors) { | |
1880 | error_report("invalid cluster size"); | |
2d9187bc | 1881 | return -EINVAL; |
690c7301 KW |
1882 | } |
1883 | s->buf_sectors = s->cluster_sectors; | |
1884 | } | |
690c7301 | 1885 | |
690c7301 KW |
1886 | while (sector_num < s->total_sectors) { |
1887 | n = convert_iteration_sectors(s, sector_num); | |
1888 | if (n < 0) { | |
2d9187bc | 1889 | return n; |
690c7301 | 1890 | } |
aad15de4 HR |
1891 | if (s->status == BLK_DATA || (!s->min_sparse && s->status == BLK_ZERO)) |
1892 | { | |
690c7301 KW |
1893 | s->allocated_sectors += n; |
1894 | } | |
1895 | sector_num += n; | |
1896 | } | |
1897 | ||
1898 | /* Do the copy */ | |
690c7301 | 1899 | s->sector_next_status = 0; |
2d9187bc | 1900 | s->ret = -EINPROGRESS; |
690c7301 | 1901 | |
2d9187bc PL |
1902 | qemu_co_mutex_init(&s->lock); |
1903 | for (i = 0; i < s->num_coroutines; i++) { | |
1904 | s->co[i] = qemu_coroutine_create(convert_co_do_copy, s); | |
1905 | s->wait_sector_num[i] = -1; | |
1906 | qemu_coroutine_enter(s->co[i]); | |
1907 | } | |
690c7301 | 1908 | |
b91127ed | 1909 | while (s->running_coroutines) { |
2d9187bc | 1910 | main_loop_wait(false); |
690c7301 KW |
1911 | } |
1912 | ||
2d9187bc | 1913 | if (s->compressed && !s->ret) { |
690c7301 | 1914 | /* signal EOF to align */ |
fe5c1355 | 1915 | ret = blk_pwrite_compressed(s->target, 0, NULL, 0); |
690c7301 | 1916 | if (ret < 0) { |
2d9187bc | 1917 | return ret; |
690c7301 KW |
1918 | } |
1919 | } | |
1920 | ||
2d9187bc | 1921 | return s->ret; |
690c7301 KW |
1922 | } |
1923 | ||
ea2384d3 FB |
1924 | static int img_convert(int argc, char **argv) |
1925 | { | |
9fd77f99 | 1926 | int c, bs_i, flags, src_flags = 0; |
305b4c60 | 1927 | const char *fmt = NULL, *out_fmt = NULL, *cache = "unsafe", |
9fd77f99 PL |
1928 | *src_cache = BDRV_DEFAULT_CACHE, *out_baseimg = NULL, |
1929 | *out_filename, *out_baseimg_param, *snapshot_name = NULL; | |
305b4c60 | 1930 | BlockDriver *drv = NULL, *proto_drv = NULL; |
faea38e7 | 1931 | BlockDriverInfo bdi; |
9fd77f99 PL |
1932 | BlockDriverState *out_bs; |
1933 | QemuOpts *opts = NULL, *sn_opts = NULL; | |
83d0521a | 1934 | QemuOptsList *create_opts = NULL; |
efa84d43 | 1935 | char *options = NULL; |
cc84d90f | 1936 | Error *local_err = NULL; |
9fd77f99 | 1937 | bool writethrough, src_writethrough, quiet = false, image_opts = false, |
305b4c60 | 1938 | skip_create = false, progress = false, tgt_image_opts = false; |
9fd77f99 | 1939 | int64_t ret = -EINVAL; |
335e9937 | 1940 | bool force_share = false; |
9fd77f99 PL |
1941 | |
1942 | ImgConvertState s = (ImgConvertState) { | |
1943 | /* Need at least 4k of zeros for sparse detection */ | |
1944 | .min_sparse = 8, | |
1945 | .buf_sectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE, | |
1946 | .wr_in_order = true, | |
1947 | .num_coroutines = 8, | |
1948 | }; | |
ea2384d3 | 1949 | |
ea2384d3 | 1950 | for(;;) { |
3babeb15 DB |
1951 | static const struct option long_options[] = { |
1952 | {"help", no_argument, 0, 'h'}, | |
1953 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 1954 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 1955 | {"force-share", no_argument, 0, 'U'}, |
305b4c60 | 1956 | {"target-image-opts", no_argument, 0, OPTION_TARGET_IMAGE_OPTS}, |
3babeb15 DB |
1957 | {0, 0, 0, 0} |
1958 | }; | |
6b4df548 | 1959 | c = getopt_long(argc, argv, ":hf:O:B:co:s:l:S:pt:T:qnm:WU", |
3babeb15 | 1960 | long_options, NULL); |
b8fb60da | 1961 | if (c == -1) { |
ea2384d3 | 1962 | break; |
b8fb60da | 1963 | } |
ea2384d3 | 1964 | switch(c) { |
c9192973 SH |
1965 | case ':': |
1966 | missing_argument(argv[optind - 1]); | |
1967 | break; | |
ef87394c | 1968 | case '?': |
c9192973 SH |
1969 | unrecognized_option(argv[optind - 1]); |
1970 | break; | |
ea2384d3 FB |
1971 | case 'h': |
1972 | help(); | |
1973 | break; | |
1974 | case 'f': | |
1975 | fmt = optarg; | |
1976 | break; | |
1977 | case 'O': | |
1978 | out_fmt = optarg; | |
1979 | break; | |
f58c7b35 TS |
1980 | case 'B': |
1981 | out_baseimg = optarg; | |
1982 | break; | |
ea2384d3 | 1983 | case 'c': |
9fd77f99 | 1984 | s.compressed = true; |
ea2384d3 | 1985 | break; |
efa84d43 | 1986 | case 'o': |
2dc8328b KW |
1987 | if (!is_valid_option_list(optarg)) { |
1988 | error_report("Invalid option list: %s", optarg); | |
64bb01aa | 1989 | goto fail_getopt; |
2dc8328b KW |
1990 | } |
1991 | if (!options) { | |
1992 | options = g_strdup(optarg); | |
1993 | } else { | |
1994 | char *old_options = options; | |
1995 | options = g_strdup_printf("%s,%s", options, optarg); | |
1996 | g_free(old_options); | |
1997 | } | |
efa84d43 | 1998 | break; |
51ef6727 | 1999 | case 's': |
2000 | snapshot_name = optarg; | |
2001 | break; | |
ef80654d WX |
2002 | case 'l': |
2003 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
70b94331 MA |
2004 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, |
2005 | optarg, false); | |
ef80654d WX |
2006 | if (!sn_opts) { |
2007 | error_report("Failed in parsing snapshot param '%s'", | |
2008 | optarg); | |
64bb01aa | 2009 | goto fail_getopt; |
ef80654d WX |
2010 | } |
2011 | } else { | |
2012 | snapshot_name = optarg; | |
2013 | } | |
2014 | break; | |
a22f123c KW |
2015 | case 'S': |
2016 | { | |
2017 | int64_t sval; | |
606caa0a MA |
2018 | |
2019 | sval = cvtnum(optarg); | |
2020 | if (sval < 0) { | |
a22f123c | 2021 | error_report("Invalid minimum zero buffer size for sparse output specified"); |
64bb01aa | 2022 | goto fail_getopt; |
a22f123c KW |
2023 | } |
2024 | ||
9fd77f99 | 2025 | s.min_sparse = sval / BDRV_SECTOR_SIZE; |
a22f123c KW |
2026 | break; |
2027 | } | |
6b837bc4 | 2028 | case 'p': |
9fd77f99 | 2029 | progress = true; |
6b837bc4 | 2030 | break; |
661a0f71 FS |
2031 | case 't': |
2032 | cache = optarg; | |
2033 | break; | |
40055951 HR |
2034 | case 'T': |
2035 | src_cache = optarg; | |
2036 | break; | |
f382d43a MR |
2037 | case 'q': |
2038 | quiet = true; | |
2039 | break; | |
b2e10493 | 2040 | case 'n': |
9fd77f99 | 2041 | skip_create = true; |
b2e10493 | 2042 | break; |
2d9187bc | 2043 | case 'm': |
9fd77f99 PL |
2044 | if (qemu_strtol(optarg, NULL, 0, &s.num_coroutines) || |
2045 | s.num_coroutines < 1 || s.num_coroutines > MAX_COROUTINES) { | |
2d9187bc PL |
2046 | error_report("Invalid number of coroutines. Allowed number of" |
2047 | " coroutines is between 1 and %d", MAX_COROUTINES); | |
2d9187bc PL |
2048 | goto fail_getopt; |
2049 | } | |
2050 | break; | |
2051 | case 'W': | |
9fd77f99 | 2052 | s.wr_in_order = false; |
2d9187bc | 2053 | break; |
335e9937 FZ |
2054 | case 'U': |
2055 | force_share = true; | |
2056 | break; | |
3258b911 HR |
2057 | case OPTION_OBJECT: { |
2058 | QemuOpts *object_opts; | |
2059 | object_opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2060 | optarg, true); | |
2061 | if (!object_opts) { | |
3babeb15 DB |
2062 | goto fail_getopt; |
2063 | } | |
2064 | break; | |
3258b911 | 2065 | } |
eb769f74 DB |
2066 | case OPTION_IMAGE_OPTS: |
2067 | image_opts = true; | |
2068 | break; | |
305b4c60 DB |
2069 | case OPTION_TARGET_IMAGE_OPTS: |
2070 | tgt_image_opts = true; | |
2071 | break; | |
ea2384d3 FB |
2072 | } |
2073 | } | |
3b46e624 | 2074 | |
305b4c60 DB |
2075 | if (!out_fmt && !tgt_image_opts) { |
2076 | out_fmt = "raw"; | |
2077 | } | |
2078 | ||
3babeb15 DB |
2079 | if (qemu_opts_foreach(&qemu_object_opts, |
2080 | user_creatable_add_opts_foreach, | |
51b9b478 | 2081 | NULL, NULL)) { |
3babeb15 DB |
2082 | goto fail_getopt; |
2083 | } | |
2084 | ||
9fd77f99 | 2085 | if (!s.wr_in_order && s.compressed) { |
2d9187bc | 2086 | error_report("Out of order write and compress are mutually exclusive"); |
2d9187bc PL |
2087 | goto fail_getopt; |
2088 | } | |
2089 | ||
305b4c60 DB |
2090 | if (tgt_image_opts && !skip_create) { |
2091 | error_report("--target-image-opts requires use of -n flag"); | |
2092 | goto fail_getopt; | |
2093 | } | |
2094 | ||
9fd77f99 PL |
2095 | s.src_num = argc - optind - 1; |
2096 | out_filename = s.src_num >= 1 ? argv[argc - 1] : NULL; | |
f58c7b35 | 2097 | |
2dc8328b | 2098 | if (options && has_help_option(options)) { |
305b4c60 DB |
2099 | if (out_fmt) { |
2100 | ret = print_block_option_help(out_filename, out_fmt); | |
2101 | goto fail_getopt; | |
2102 | } else { | |
2103 | error_report("Option help requires a format be specified"); | |
2104 | goto fail_getopt; | |
2105 | } | |
4ac8aacd JS |
2106 | } |
2107 | ||
9fd77f99 PL |
2108 | if (s.src_num < 1) { |
2109 | error_report("Must specify image file name"); | |
2110 | goto fail_getopt; | |
a283cb6e KW |
2111 | } |
2112 | ||
2113 | ||
9fd77f99 | 2114 | /* ret is still -EINVAL until here */ |
ce099547 | 2115 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); |
40055951 HR |
2116 | if (ret < 0) { |
2117 | error_report("Invalid source cache option: %s", src_cache); | |
9fd77f99 | 2118 | goto fail_getopt; |
40055951 HR |
2119 | } |
2120 | ||
9fd77f99 PL |
2121 | /* Initialize before goto out */ |
2122 | if (quiet) { | |
2123 | progress = false; | |
2124 | } | |
2125 | qemu_progress_init(progress, 1.0); | |
6b837bc4 JS |
2126 | qemu_progress_print(0, 100); |
2127 | ||
9fd77f99 PL |
2128 | s.src = g_new0(BlockBackend *, s.src_num); |
2129 | s.src_sectors = g_new(int64_t, s.src_num); | |
926c2d23 | 2130 | |
9fd77f99 PL |
2131 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { |
2132 | s.src[bs_i] = img_open(image_opts, argv[optind + bs_i], | |
335e9937 FZ |
2133 | fmt, src_flags, src_writethrough, quiet, |
2134 | force_share); | |
9fd77f99 | 2135 | if (!s.src[bs_i]) { |
c2abccec MK |
2136 | ret = -1; |
2137 | goto out; | |
2138 | } | |
9fd77f99 PL |
2139 | s.src_sectors[bs_i] = blk_nb_sectors(s.src[bs_i]); |
2140 | if (s.src_sectors[bs_i] < 0) { | |
52bf1e72 | 2141 | error_report("Could not get size of %s: %s", |
9fd77f99 | 2142 | argv[optind + bs_i], strerror(-s.src_sectors[bs_i])); |
52bf1e72 MA |
2143 | ret = -1; |
2144 | goto out; | |
2145 | } | |
9fd77f99 | 2146 | s.total_sectors += s.src_sectors[bs_i]; |
926c2d23 | 2147 | } |
ea2384d3 | 2148 | |
ef80654d | 2149 | if (sn_opts) { |
9fd77f99 | 2150 | bdrv_snapshot_load_tmp(blk_bs(s.src[0]), |
10d6eda1 PM |
2151 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), |
2152 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
2153 | &local_err); | |
ef80654d | 2154 | } else if (snapshot_name != NULL) { |
9fd77f99 | 2155 | if (s.src_num > 1) { |
6daf194d | 2156 | error_report("No support for concatenating multiple snapshot"); |
51ef6727 | 2157 | ret = -1; |
2158 | goto out; | |
2159 | } | |
7b4c4781 | 2160 | |
9fd77f99 PL |
2161 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(s.src[0]), snapshot_name, |
2162 | &local_err); | |
ef80654d | 2163 | } |
84d18f06 | 2164 | if (local_err) { |
c29b77f9 | 2165 | error_reportf_err(local_err, "Failed to load snapshot: "); |
ef80654d WX |
2166 | ret = -1; |
2167 | goto out; | |
51ef6727 | 2168 | } |
2169 | ||
305b4c60 DB |
2170 | if (!skip_create) { |
2171 | /* Find driver and parse its options */ | |
2172 | drv = bdrv_find_format(out_fmt); | |
2173 | if (!drv) { | |
2174 | error_report("Unknown file format '%s'", out_fmt); | |
2175 | ret = -1; | |
2176 | goto out; | |
2177 | } | |
efa84d43 | 2178 | |
305b4c60 DB |
2179 | proto_drv = bdrv_find_protocol(out_filename, true, &local_err); |
2180 | if (!proto_drv) { | |
2181 | error_report_err(local_err); | |
2182 | ret = -1; | |
2183 | goto out; | |
2184 | } | |
b50cbabc | 2185 | |
2e024cde HR |
2186 | if (!drv->create_opts) { |
2187 | error_report("Format driver '%s' does not support image creation", | |
2188 | drv->format_name); | |
2189 | ret = -1; | |
2190 | goto out; | |
2191 | } | |
f75613cf | 2192 | |
2e024cde HR |
2193 | if (!proto_drv->create_opts) { |
2194 | error_report("Protocol driver '%s' does not support image creation", | |
2195 | proto_drv->format_name); | |
2196 | ret = -1; | |
2197 | goto out; | |
2198 | } | |
f75613cf | 2199 | |
2e024cde HR |
2200 | create_opts = qemu_opts_append(create_opts, drv->create_opts); |
2201 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
db08adf5 | 2202 | |
2e024cde | 2203 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); |
dc523cd3 MA |
2204 | if (options) { |
2205 | qemu_opts_do_parse(opts, options, NULL, &local_err); | |
2206 | if (local_err) { | |
97a2ca7a | 2207 | error_report_err(local_err); |
dc523cd3 MA |
2208 | ret = -1; |
2209 | goto out; | |
2210 | } | |
2e024cde | 2211 | } |
efa84d43 | 2212 | |
9fd77f99 | 2213 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, s.total_sectors * 512, |
39101f25 | 2214 | &error_abort); |
2e024cde HR |
2215 | ret = add_old_style_options(out_fmt, opts, out_baseimg, NULL); |
2216 | if (ret < 0) { | |
2217 | goto out; | |
2218 | } | |
c2abccec | 2219 | } |
efa84d43 | 2220 | |
a18953fb | 2221 | /* Get backing file name if -o backing_file was used */ |
83d0521a | 2222 | out_baseimg_param = qemu_opt_get(opts, BLOCK_OPT_BACKING_FILE); |
a18953fb | 2223 | if (out_baseimg_param) { |
83d0521a | 2224 | out_baseimg = out_baseimg_param; |
a18953fb | 2225 | } |
9fd77f99 | 2226 | s.target_has_backing = (bool) out_baseimg; |
a18953fb | 2227 | |
48758a84 HR |
2228 | if (s.src_num > 1 && out_baseimg) { |
2229 | error_report("Having a backing file for the target makes no sense when " | |
2230 | "concatenating multiple input images"); | |
2231 | ret = -1; | |
2232 | goto out; | |
2233 | } | |
2234 | ||
efa84d43 | 2235 | /* Check if compression is supported */ |
9fd77f99 | 2236 | if (s.compressed) { |
83d0521a CL |
2237 | bool encryption = |
2238 | qemu_opt_get_bool(opts, BLOCK_OPT_ENCRYPT, false); | |
0cb8d47b DB |
2239 | const char *encryptfmt = |
2240 | qemu_opt_get(opts, BLOCK_OPT_ENCRYPT_FORMAT); | |
83d0521a CL |
2241 | const char *preallocation = |
2242 | qemu_opt_get(opts, BLOCK_OPT_PREALLOC); | |
efa84d43 | 2243 | |
305b4c60 | 2244 | if (drv && !drv->bdrv_co_pwritev_compressed) { |
15654a6d | 2245 | error_report("Compression not supported for this file format"); |
c2abccec MK |
2246 | ret = -1; |
2247 | goto out; | |
efa84d43 KW |
2248 | } |
2249 | ||
0cb8d47b | 2250 | if (encryption || encryptfmt) { |
15654a6d JS |
2251 | error_report("Compression and encryption not supported at " |
2252 | "the same time"); | |
c2abccec MK |
2253 | ret = -1; |
2254 | goto out; | |
efa84d43 | 2255 | } |
41521fa4 | 2256 | |
83d0521a CL |
2257 | if (preallocation |
2258 | && strcmp(preallocation, "off")) | |
41521fa4 KW |
2259 | { |
2260 | error_report("Compression and preallocation not supported at " | |
2261 | "the same time"); | |
2262 | ret = -1; | |
2263 | goto out; | |
2264 | } | |
efa84d43 KW |
2265 | } |
2266 | ||
b2e10493 AD |
2267 | if (!skip_create) { |
2268 | /* Create the new image */ | |
c282e1fd | 2269 | ret = bdrv_create(drv, out_filename, opts, &local_err); |
b2e10493 | 2270 | if (ret < 0) { |
c29b77f9 MA |
2271 | error_reportf_err(local_err, "%s: error while converting %s: ", |
2272 | out_filename, out_fmt); | |
b2e10493 | 2273 | goto out; |
ea2384d3 FB |
2274 | } |
2275 | } | |
3b46e624 | 2276 | |
9fd77f99 | 2277 | flags = s.min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR; |
ce099547 | 2278 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
2279 | if (ret < 0) { |
2280 | error_report("Invalid cache option: %s", cache); | |
bb9cd2ee | 2281 | goto out; |
661a0f71 FS |
2282 | } |
2283 | ||
305b4c60 DB |
2284 | if (skip_create) { |
2285 | s.target = img_open(tgt_image_opts, out_filename, out_fmt, | |
2286 | flags, writethrough, quiet, false); | |
2287 | } else { | |
2288 | /* TODO ultimately we should allow --target-image-opts | |
2289 | * to be used even when -n is not given. | |
2290 | * That has to wait for bdrv_create to be improved | |
2291 | * to allow filenames in option syntax | |
2292 | */ | |
29cf9336 DB |
2293 | s.target = img_open_new_file(out_filename, opts, out_fmt, |
2294 | flags, writethrough, quiet, false); | |
305b4c60 | 2295 | } |
9fd77f99 | 2296 | if (!s.target) { |
c2abccec MK |
2297 | ret = -1; |
2298 | goto out; | |
2299 | } | |
9fd77f99 | 2300 | out_bs = blk_bs(s.target); |
ea2384d3 | 2301 | |
305b4c60 DB |
2302 | if (s.compressed && !out_bs->drv->bdrv_co_pwritev_compressed) { |
2303 | error_report("Compression not supported for this file format"); | |
2304 | ret = -1; | |
2305 | goto out; | |
2306 | } | |
2307 | ||
5def6b80 | 2308 | /* increase bufsectors from the default 4096 (2M) if opt_transfer |
f2521c90 PL |
2309 | * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB) |
2310 | * as maximum. */ | |
9fd77f99 PL |
2311 | s.buf_sectors = MIN(32768, |
2312 | MAX(s.buf_sectors, | |
2313 | MAX(out_bs->bl.opt_transfer >> BDRV_SECTOR_BITS, | |
2314 | out_bs->bl.pdiscard_alignment >> | |
2315 | BDRV_SECTOR_BITS))); | |
f2521c90 | 2316 | |
b2e10493 | 2317 | if (skip_create) { |
9fd77f99 | 2318 | int64_t output_sectors = blk_nb_sectors(s.target); |
43716fa8 | 2319 | if (output_sectors < 0) { |
eec5eb42 | 2320 | error_report("unable to get output image length: %s", |
43716fa8 | 2321 | strerror(-output_sectors)); |
b2e10493 AD |
2322 | ret = -1; |
2323 | goto out; | |
9fd77f99 | 2324 | } else if (output_sectors < s.total_sectors) { |
b2e10493 AD |
2325 | error_report("output file is smaller than input file"); |
2326 | ret = -1; | |
2327 | goto out; | |
2328 | } | |
2329 | } | |
2330 | ||
24f833cd PL |
2331 | ret = bdrv_get_info(out_bs, &bdi); |
2332 | if (ret < 0) { | |
9fd77f99 | 2333 | if (s.compressed) { |
15654a6d | 2334 | error_report("could not get block driver info"); |
c2abccec MK |
2335 | goto out; |
2336 | } | |
24f833cd | 2337 | } else { |
9fd77f99 PL |
2338 | s.compressed = s.compressed || bdi.needs_compressed_writes; |
2339 | s.cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE; | |
2340 | } | |
802c3d4c | 2341 | |
9fd77f99 | 2342 | ret = convert_do_copy(&s); |
c2abccec | 2343 | out: |
13c28af8 PL |
2344 | if (!ret) { |
2345 | qemu_progress_print(100, 0); | |
2346 | } | |
6b837bc4 | 2347 | qemu_progress_end(); |
83d0521a CL |
2348 | qemu_opts_del(opts); |
2349 | qemu_opts_free(create_opts); | |
fbf28a43 | 2350 | qemu_opts_del(sn_opts); |
9fd77f99 PL |
2351 | blk_unref(s.target); |
2352 | if (s.src) { | |
2353 | for (bs_i = 0; bs_i < s.src_num; bs_i++) { | |
2354 | blk_unref(s.src[bs_i]); | |
26f54e9a | 2355 | } |
9fd77f99 | 2356 | g_free(s.src); |
26f54e9a | 2357 | } |
9fd77f99 | 2358 | g_free(s.src_sectors); |
64bb01aa KW |
2359 | fail_getopt: |
2360 | g_free(options); | |
2361 | ||
9fd77f99 | 2362 | return !!ret; |
ea2384d3 FB |
2363 | } |
2364 | ||
57d1a2b6 | 2365 | |
faea38e7 FB |
2366 | static void dump_snapshots(BlockDriverState *bs) |
2367 | { | |
2368 | QEMUSnapshotInfo *sn_tab, *sn; | |
2369 | int nb_sns, i; | |
faea38e7 FB |
2370 | |
2371 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); | |
2372 | if (nb_sns <= 0) | |
2373 | return; | |
2374 | printf("Snapshot list:\n"); | |
5b917044 WX |
2375 | bdrv_snapshot_dump(fprintf, stdout, NULL); |
2376 | printf("\n"); | |
faea38e7 FB |
2377 | for(i = 0; i < nb_sns; i++) { |
2378 | sn = &sn_tab[i]; | |
5b917044 WX |
2379 | bdrv_snapshot_dump(fprintf, stdout, sn); |
2380 | printf("\n"); | |
faea38e7 | 2381 | } |
7267c094 | 2382 | g_free(sn_tab); |
faea38e7 FB |
2383 | } |
2384 | ||
9699bf0d SH |
2385 | static void dump_json_image_info_list(ImageInfoList *list) |
2386 | { | |
9699bf0d | 2387 | QString *str; |
9699bf0d | 2388 | QObject *obj; |
7d5e199a | 2389 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2390 | |
2391 | visit_type_ImageInfoList(v, NULL, &list, &error_abort); | |
2392 | visit_complete(v, &obj); | |
9699bf0d SH |
2393 | str = qobject_to_json_pretty(obj); |
2394 | assert(str != NULL); | |
2395 | printf("%s\n", qstring_get_str(str)); | |
2396 | qobject_decref(obj); | |
3b098d56 | 2397 | visit_free(v); |
9699bf0d SH |
2398 | QDECREF(str); |
2399 | } | |
2400 | ||
c054b3fd BC |
2401 | static void dump_json_image_info(ImageInfo *info) |
2402 | { | |
c054b3fd | 2403 | QString *str; |
c054b3fd | 2404 | QObject *obj; |
7d5e199a | 2405 | Visitor *v = qobject_output_visitor_new(&obj); |
3b098d56 EB |
2406 | |
2407 | visit_type_ImageInfo(v, NULL, &info, &error_abort); | |
2408 | visit_complete(v, &obj); | |
c054b3fd BC |
2409 | str = qobject_to_json_pretty(obj); |
2410 | assert(str != NULL); | |
2411 | printf("%s\n", qstring_get_str(str)); | |
2412 | qobject_decref(obj); | |
3b098d56 | 2413 | visit_free(v); |
c054b3fd BC |
2414 | QDECREF(str); |
2415 | } | |
2416 | ||
9699bf0d SH |
2417 | static void dump_human_image_info_list(ImageInfoList *list) |
2418 | { | |
2419 | ImageInfoList *elem; | |
2420 | bool delim = false; | |
2421 | ||
2422 | for (elem = list; elem; elem = elem->next) { | |
2423 | if (delim) { | |
2424 | printf("\n"); | |
2425 | } | |
2426 | delim = true; | |
2427 | ||
5b917044 | 2428 | bdrv_image_info_dump(fprintf, stdout, elem->value); |
9699bf0d SH |
2429 | } |
2430 | } | |
2431 | ||
2432 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) | |
2433 | { | |
2434 | return strcmp(a, b) == 0; | |
2435 | } | |
2436 | ||
2437 | /** | |
2438 | * Open an image file chain and return an ImageInfoList | |
2439 | * | |
2440 | * @filename: topmost image filename | |
2441 | * @fmt: topmost image format (may be NULL to autodetect) | |
2442 | * @chain: true - enumerate entire backing file chain | |
2443 | * false - only topmost image file | |
2444 | * | |
2445 | * Returns a list of ImageInfo objects or NULL if there was an error opening an | |
2446 | * image file. If there was an error a message will have been printed to | |
2447 | * stderr. | |
2448 | */ | |
eb769f74 DB |
2449 | static ImageInfoList *collect_image_info_list(bool image_opts, |
2450 | const char *filename, | |
9699bf0d | 2451 | const char *fmt, |
335e9937 | 2452 | bool chain, bool force_share) |
9699bf0d SH |
2453 | { |
2454 | ImageInfoList *head = NULL; | |
2455 | ImageInfoList **last = &head; | |
2456 | GHashTable *filenames; | |
43526ec8 | 2457 | Error *err = NULL; |
9699bf0d SH |
2458 | |
2459 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); | |
2460 | ||
2461 | while (filename) { | |
26f54e9a | 2462 | BlockBackend *blk; |
9699bf0d SH |
2463 | BlockDriverState *bs; |
2464 | ImageInfo *info; | |
2465 | ImageInfoList *elem; | |
2466 | ||
2467 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { | |
2468 | error_report("Backing file '%s' creates an infinite loop.", | |
2469 | filename); | |
2470 | goto err; | |
2471 | } | |
2472 | g_hash_table_insert(filenames, (gpointer)filename, NULL); | |
2473 | ||
efaa7c4e | 2474 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
2475 | BDRV_O_NO_BACKING | BDRV_O_NO_IO, false, false, |
2476 | force_share); | |
7e7d56d9 | 2477 | if (!blk) { |
9699bf0d SH |
2478 | goto err; |
2479 | } | |
7e7d56d9 | 2480 | bs = blk_bs(blk); |
9699bf0d | 2481 | |
43526ec8 | 2482 | bdrv_query_image_info(bs, &info, &err); |
84d18f06 | 2483 | if (err) { |
565f65d2 | 2484 | error_report_err(err); |
26f54e9a | 2485 | blk_unref(blk); |
43526ec8 | 2486 | goto err; |
fb0ed453 | 2487 | } |
9699bf0d SH |
2488 | |
2489 | elem = g_new0(ImageInfoList, 1); | |
2490 | elem->value = info; | |
2491 | *last = elem; | |
2492 | last = &elem->next; | |
2493 | ||
26f54e9a | 2494 | blk_unref(blk); |
9699bf0d SH |
2495 | |
2496 | filename = fmt = NULL; | |
2497 | if (chain) { | |
2498 | if (info->has_full_backing_filename) { | |
2499 | filename = info->full_backing_filename; | |
2500 | } else if (info->has_backing_filename) { | |
92d617ab JS |
2501 | error_report("Could not determine absolute backing filename," |
2502 | " but backing filename '%s' present", | |
2503 | info->backing_filename); | |
2504 | goto err; | |
9699bf0d SH |
2505 | } |
2506 | if (info->has_backing_filename_format) { | |
2507 | fmt = info->backing_filename_format; | |
2508 | } | |
2509 | } | |
2510 | } | |
2511 | g_hash_table_destroy(filenames); | |
2512 | return head; | |
2513 | ||
2514 | err: | |
2515 | qapi_free_ImageInfoList(head); | |
2516 | g_hash_table_destroy(filenames); | |
2517 | return NULL; | |
2518 | } | |
2519 | ||
c054b3fd BC |
2520 | static int img_info(int argc, char **argv) |
2521 | { | |
2522 | int c; | |
2523 | OutputFormat output_format = OFORMAT_HUMAN; | |
9699bf0d | 2524 | bool chain = false; |
c054b3fd | 2525 | const char *filename, *fmt, *output; |
9699bf0d | 2526 | ImageInfoList *list; |
eb769f74 | 2527 | bool image_opts = false; |
335e9937 | 2528 | bool force_share = false; |
c054b3fd | 2529 | |
ea2384d3 | 2530 | fmt = NULL; |
c054b3fd | 2531 | output = NULL; |
ea2384d3 | 2532 | for(;;) { |
c054b3fd BC |
2533 | int option_index = 0; |
2534 | static const struct option long_options[] = { | |
2535 | {"help", no_argument, 0, 'h'}, | |
2536 | {"format", required_argument, 0, 'f'}, | |
2537 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
9699bf0d | 2538 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
3babeb15 | 2539 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 2540 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2541 | {"force-share", no_argument, 0, 'U'}, |
c054b3fd BC |
2542 | {0, 0, 0, 0} |
2543 | }; | |
335e9937 | 2544 | c = getopt_long(argc, argv, ":f:hU", |
c054b3fd | 2545 | long_options, &option_index); |
b8fb60da | 2546 | if (c == -1) { |
ea2384d3 | 2547 | break; |
b8fb60da | 2548 | } |
ea2384d3 | 2549 | switch(c) { |
c9192973 SH |
2550 | case ':': |
2551 | missing_argument(argv[optind - 1]); | |
2552 | break; | |
ef87394c | 2553 | case '?': |
c9192973 SH |
2554 | unrecognized_option(argv[optind - 1]); |
2555 | break; | |
ea2384d3 FB |
2556 | case 'h': |
2557 | help(); | |
2558 | break; | |
2559 | case 'f': | |
2560 | fmt = optarg; | |
2561 | break; | |
335e9937 FZ |
2562 | case 'U': |
2563 | force_share = true; | |
2564 | break; | |
c054b3fd BC |
2565 | case OPTION_OUTPUT: |
2566 | output = optarg; | |
2567 | break; | |
9699bf0d SH |
2568 | case OPTION_BACKING_CHAIN: |
2569 | chain = true; | |
2570 | break; | |
3babeb15 DB |
2571 | case OPTION_OBJECT: { |
2572 | QemuOpts *opts; | |
2573 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2574 | optarg, true); | |
2575 | if (!opts) { | |
2576 | return 1; | |
2577 | } | |
2578 | } break; | |
eb769f74 DB |
2579 | case OPTION_IMAGE_OPTS: |
2580 | image_opts = true; | |
2581 | break; | |
ea2384d3 FB |
2582 | } |
2583 | } | |
fc11eb26 | 2584 | if (optind != argc - 1) { |
ac1307ab | 2585 | error_exit("Expecting one image file name"); |
b8fb60da | 2586 | } |
ea2384d3 FB |
2587 | filename = argv[optind++]; |
2588 | ||
c054b3fd BC |
2589 | if (output && !strcmp(output, "json")) { |
2590 | output_format = OFORMAT_JSON; | |
2591 | } else if (output && !strcmp(output, "human")) { | |
2592 | output_format = OFORMAT_HUMAN; | |
2593 | } else if (output) { | |
2594 | error_report("--output must be used with human or json as argument."); | |
c2abccec MK |
2595 | return 1; |
2596 | } | |
c054b3fd | 2597 | |
3babeb15 DB |
2598 | if (qemu_opts_foreach(&qemu_object_opts, |
2599 | user_creatable_add_opts_foreach, | |
51b9b478 | 2600 | NULL, NULL)) { |
3babeb15 DB |
2601 | return 1; |
2602 | } | |
2603 | ||
335e9937 FZ |
2604 | list = collect_image_info_list(image_opts, filename, fmt, chain, |
2605 | force_share); | |
9699bf0d | 2606 | if (!list) { |
c2abccec | 2607 | return 1; |
faea38e7 | 2608 | } |
c054b3fd | 2609 | |
c054b3fd BC |
2610 | switch (output_format) { |
2611 | case OFORMAT_HUMAN: | |
9699bf0d | 2612 | dump_human_image_info_list(list); |
c054b3fd BC |
2613 | break; |
2614 | case OFORMAT_JSON: | |
9699bf0d SH |
2615 | if (chain) { |
2616 | dump_json_image_info_list(list); | |
2617 | } else { | |
2618 | dump_json_image_info(list->value); | |
2619 | } | |
c054b3fd | 2620 | break; |
faea38e7 | 2621 | } |
c054b3fd | 2622 | |
9699bf0d | 2623 | qapi_free_ImageInfoList(list); |
ea2384d3 FB |
2624 | return 0; |
2625 | } | |
2626 | ||
4c93a13b PB |
2627 | static void dump_map_entry(OutputFormat output_format, MapEntry *e, |
2628 | MapEntry *next) | |
2629 | { | |
2630 | switch (output_format) { | |
2631 | case OFORMAT_HUMAN: | |
16b0d555 | 2632 | if (e->data && !e->has_offset) { |
4c93a13b PB |
2633 | error_report("File contains external, encrypted or compressed clusters."); |
2634 | exit(1); | |
2635 | } | |
16b0d555 | 2636 | if (e->data && !e->zero) { |
4c93a13b | 2637 | printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", |
16b0d555 FZ |
2638 | e->start, e->length, |
2639 | e->has_offset ? e->offset : 0, | |
2640 | e->has_filename ? e->filename : ""); | |
4c93a13b PB |
2641 | } |
2642 | /* This format ignores the distinction between 0, ZERO and ZERO|DATA. | |
2643 | * Modify the flags here to allow more coalescing. | |
2644 | */ | |
16b0d555 FZ |
2645 | if (next && (!next->data || next->zero)) { |
2646 | next->data = false; | |
2647 | next->zero = true; | |
4c93a13b PB |
2648 | } |
2649 | break; | |
2650 | case OFORMAT_JSON: | |
16b0d555 FZ |
2651 | printf("%s{ \"start\": %"PRId64", \"length\": %"PRId64"," |
2652 | " \"depth\": %"PRId64", \"zero\": %s, \"data\": %s", | |
4c93a13b PB |
2653 | (e->start == 0 ? "[" : ",\n"), |
2654 | e->start, e->length, e->depth, | |
16b0d555 FZ |
2655 | e->zero ? "true" : "false", |
2656 | e->data ? "true" : "false"); | |
2657 | if (e->has_offset) { | |
c745bfb4 | 2658 | printf(", \"offset\": %"PRId64"", e->offset); |
4c93a13b PB |
2659 | } |
2660 | putchar('}'); | |
2661 | ||
2662 | if (!next) { | |
2663 | printf("]\n"); | |
2664 | } | |
2665 | break; | |
2666 | } | |
2667 | } | |
2668 | ||
2669 | static int get_block_status(BlockDriverState *bs, int64_t sector_num, | |
2670 | int nb_sectors, MapEntry *e) | |
2671 | { | |
2672 | int64_t ret; | |
2673 | int depth; | |
67a0fd2a | 2674 | BlockDriverState *file; |
2875645b | 2675 | bool has_offset; |
4c93a13b PB |
2676 | |
2677 | /* As an optimization, we could cache the current range of unallocated | |
2678 | * clusters in each file of the chain, and avoid querying the same | |
2679 | * range repeatedly. | |
2680 | */ | |
2681 | ||
2682 | depth = 0; | |
2683 | for (;;) { | |
67a0fd2a FZ |
2684 | ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &nb_sectors, |
2685 | &file); | |
4c93a13b PB |
2686 | if (ret < 0) { |
2687 | return ret; | |
2688 | } | |
2689 | assert(nb_sectors); | |
2690 | if (ret & (BDRV_BLOCK_ZERO|BDRV_BLOCK_DATA)) { | |
2691 | break; | |
2692 | } | |
760e0063 | 2693 | bs = backing_bs(bs); |
4c93a13b PB |
2694 | if (bs == NULL) { |
2695 | ret = 0; | |
2696 | break; | |
2697 | } | |
2698 | ||
2699 | depth++; | |
2700 | } | |
2701 | ||
2875645b JS |
2702 | has_offset = !!(ret & BDRV_BLOCK_OFFSET_VALID); |
2703 | ||
2704 | *e = (MapEntry) { | |
2705 | .start = sector_num * BDRV_SECTOR_SIZE, | |
2706 | .length = nb_sectors * BDRV_SECTOR_SIZE, | |
2707 | .data = !!(ret & BDRV_BLOCK_DATA), | |
2708 | .zero = !!(ret & BDRV_BLOCK_ZERO), | |
2709 | .offset = ret & BDRV_BLOCK_OFFSET_MASK, | |
2710 | .has_offset = has_offset, | |
2711 | .depth = depth, | |
2712 | .has_filename = file && has_offset, | |
2713 | .filename = file && has_offset ? file->filename : NULL, | |
2714 | }; | |
2715 | ||
4c93a13b PB |
2716 | return 0; |
2717 | } | |
2718 | ||
16b0d555 FZ |
2719 | static inline bool entry_mergeable(const MapEntry *curr, const MapEntry *next) |
2720 | { | |
2721 | if (curr->length == 0) { | |
2722 | return false; | |
2723 | } | |
2724 | if (curr->zero != next->zero || | |
2725 | curr->data != next->data || | |
2726 | curr->depth != next->depth || | |
2727 | curr->has_filename != next->has_filename || | |
2728 | curr->has_offset != next->has_offset) { | |
2729 | return false; | |
2730 | } | |
2731 | if (curr->has_filename && strcmp(curr->filename, next->filename)) { | |
2732 | return false; | |
2733 | } | |
2734 | if (curr->has_offset && curr->offset + curr->length != next->offset) { | |
2735 | return false; | |
2736 | } | |
2737 | return true; | |
2738 | } | |
2739 | ||
4c93a13b PB |
2740 | static int img_map(int argc, char **argv) |
2741 | { | |
2742 | int c; | |
2743 | OutputFormat output_format = OFORMAT_HUMAN; | |
26f54e9a | 2744 | BlockBackend *blk; |
4c93a13b PB |
2745 | BlockDriverState *bs; |
2746 | const char *filename, *fmt, *output; | |
2747 | int64_t length; | |
2748 | MapEntry curr = { .length = 0 }, next; | |
2749 | int ret = 0; | |
eb769f74 | 2750 | bool image_opts = false; |
335e9937 | 2751 | bool force_share = false; |
4c93a13b PB |
2752 | |
2753 | fmt = NULL; | |
2754 | output = NULL; | |
2755 | for (;;) { | |
2756 | int option_index = 0; | |
2757 | static const struct option long_options[] = { | |
2758 | {"help", no_argument, 0, 'h'}, | |
2759 | {"format", required_argument, 0, 'f'}, | |
2760 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
3babeb15 | 2761 | {"object", required_argument, 0, OPTION_OBJECT}, |
eb769f74 | 2762 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2763 | {"force-share", no_argument, 0, 'U'}, |
4c93a13b PB |
2764 | {0, 0, 0, 0} |
2765 | }; | |
335e9937 | 2766 | c = getopt_long(argc, argv, ":f:hU", |
4c93a13b PB |
2767 | long_options, &option_index); |
2768 | if (c == -1) { | |
2769 | break; | |
2770 | } | |
2771 | switch (c) { | |
c9192973 SH |
2772 | case ':': |
2773 | missing_argument(argv[optind - 1]); | |
2774 | break; | |
4c93a13b | 2775 | case '?': |
c9192973 SH |
2776 | unrecognized_option(argv[optind - 1]); |
2777 | break; | |
4c93a13b PB |
2778 | case 'h': |
2779 | help(); | |
2780 | break; | |
2781 | case 'f': | |
2782 | fmt = optarg; | |
2783 | break; | |
335e9937 FZ |
2784 | case 'U': |
2785 | force_share = true; | |
2786 | break; | |
4c93a13b PB |
2787 | case OPTION_OUTPUT: |
2788 | output = optarg; | |
2789 | break; | |
3babeb15 DB |
2790 | case OPTION_OBJECT: { |
2791 | QemuOpts *opts; | |
2792 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2793 | optarg, true); | |
2794 | if (!opts) { | |
2795 | return 1; | |
2796 | } | |
2797 | } break; | |
eb769f74 DB |
2798 | case OPTION_IMAGE_OPTS: |
2799 | image_opts = true; | |
2800 | break; | |
4c93a13b PB |
2801 | } |
2802 | } | |
ac1307ab FZ |
2803 | if (optind != argc - 1) { |
2804 | error_exit("Expecting one image file name"); | |
4c93a13b | 2805 | } |
ac1307ab | 2806 | filename = argv[optind]; |
4c93a13b PB |
2807 | |
2808 | if (output && !strcmp(output, "json")) { | |
2809 | output_format = OFORMAT_JSON; | |
2810 | } else if (output && !strcmp(output, "human")) { | |
2811 | output_format = OFORMAT_HUMAN; | |
2812 | } else if (output) { | |
2813 | error_report("--output must be used with human or json as argument."); | |
2814 | return 1; | |
2815 | } | |
2816 | ||
3babeb15 DB |
2817 | if (qemu_opts_foreach(&qemu_object_opts, |
2818 | user_creatable_add_opts_foreach, | |
51b9b478 | 2819 | NULL, NULL)) { |
3babeb15 DB |
2820 | return 1; |
2821 | } | |
2822 | ||
335e9937 | 2823 | blk = img_open(image_opts, filename, fmt, 0, false, false, force_share); |
7e7d56d9 MA |
2824 | if (!blk) { |
2825 | return 1; | |
4c93a13b | 2826 | } |
7e7d56d9 | 2827 | bs = blk_bs(blk); |
4c93a13b PB |
2828 | |
2829 | if (output_format == OFORMAT_HUMAN) { | |
2830 | printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File"); | |
2831 | } | |
2832 | ||
f1d3cd79 | 2833 | length = blk_getlength(blk); |
4c93a13b PB |
2834 | while (curr.start + curr.length < length) { |
2835 | int64_t nsectors_left; | |
2836 | int64_t sector_num; | |
2837 | int n; | |
2838 | ||
2839 | sector_num = (curr.start + curr.length) >> BDRV_SECTOR_BITS; | |
2840 | ||
2841 | /* Probe up to 1 GiB at a time. */ | |
2842 | nsectors_left = DIV_ROUND_UP(length, BDRV_SECTOR_SIZE) - sector_num; | |
2843 | n = MIN(1 << (30 - BDRV_SECTOR_BITS), nsectors_left); | |
2844 | ret = get_block_status(bs, sector_num, n, &next); | |
2845 | ||
2846 | if (ret < 0) { | |
2847 | error_report("Could not read file metadata: %s", strerror(-ret)); | |
2848 | goto out; | |
2849 | } | |
2850 | ||
16b0d555 | 2851 | if (entry_mergeable(&curr, &next)) { |
4c93a13b PB |
2852 | curr.length += next.length; |
2853 | continue; | |
2854 | } | |
2855 | ||
2856 | if (curr.length > 0) { | |
2857 | dump_map_entry(output_format, &curr, &next); | |
2858 | } | |
2859 | curr = next; | |
2860 | } | |
2861 | ||
2862 | dump_map_entry(output_format, &curr, NULL); | |
2863 | ||
2864 | out: | |
26f54e9a | 2865 | blk_unref(blk); |
4c93a13b PB |
2866 | return ret < 0; |
2867 | } | |
2868 | ||
f7b4a940 AL |
2869 | #define SNAPSHOT_LIST 1 |
2870 | #define SNAPSHOT_CREATE 2 | |
2871 | #define SNAPSHOT_APPLY 3 | |
2872 | #define SNAPSHOT_DELETE 4 | |
2873 | ||
153859be | 2874 | static int img_snapshot(int argc, char **argv) |
f7b4a940 | 2875 | { |
26f54e9a | 2876 | BlockBackend *blk; |
f7b4a940 AL |
2877 | BlockDriverState *bs; |
2878 | QEMUSnapshotInfo sn; | |
2879 | char *filename, *snapshot_name = NULL; | |
c2abccec | 2880 | int c, ret = 0, bdrv_oflags; |
f7b4a940 AL |
2881 | int action = 0; |
2882 | qemu_timeval tv; | |
f382d43a | 2883 | bool quiet = false; |
a89d89d3 | 2884 | Error *err = NULL; |
eb769f74 | 2885 | bool image_opts = false; |
335e9937 | 2886 | bool force_share = false; |
f7b4a940 | 2887 | |
ce099547 | 2888 | bdrv_oflags = BDRV_O_RDWR; |
f7b4a940 AL |
2889 | /* Parse commandline parameters */ |
2890 | for(;;) { | |
3babeb15 DB |
2891 | static const struct option long_options[] = { |
2892 | {"help", no_argument, 0, 'h'}, | |
2893 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 2894 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 2895 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
2896 | {0, 0, 0, 0} |
2897 | }; | |
335e9937 | 2898 | c = getopt_long(argc, argv, ":la:c:d:hqU", |
3babeb15 | 2899 | long_options, NULL); |
b8fb60da | 2900 | if (c == -1) { |
f7b4a940 | 2901 | break; |
b8fb60da | 2902 | } |
f7b4a940 | 2903 | switch(c) { |
c9192973 SH |
2904 | case ':': |
2905 | missing_argument(argv[optind - 1]); | |
2906 | break; | |
ef87394c | 2907 | case '?': |
c9192973 SH |
2908 | unrecognized_option(argv[optind - 1]); |
2909 | break; | |
f7b4a940 AL |
2910 | case 'h': |
2911 | help(); | |
153859be | 2912 | return 0; |
f7b4a940 AL |
2913 | case 'l': |
2914 | if (action) { | |
ac1307ab | 2915 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2916 | return 0; |
f7b4a940 AL |
2917 | } |
2918 | action = SNAPSHOT_LIST; | |
f5edb014 | 2919 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
f7b4a940 AL |
2920 | break; |
2921 | case 'a': | |
2922 | if (action) { | |
ac1307ab | 2923 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2924 | return 0; |
f7b4a940 AL |
2925 | } |
2926 | action = SNAPSHOT_APPLY; | |
2927 | snapshot_name = optarg; | |
2928 | break; | |
2929 | case 'c': | |
2930 | if (action) { | |
ac1307ab | 2931 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2932 | return 0; |
f7b4a940 AL |
2933 | } |
2934 | action = SNAPSHOT_CREATE; | |
2935 | snapshot_name = optarg; | |
2936 | break; | |
2937 | case 'd': | |
2938 | if (action) { | |
ac1307ab | 2939 | error_exit("Cannot mix '-l', '-a', '-c', '-d'"); |
153859be | 2940 | return 0; |
f7b4a940 AL |
2941 | } |
2942 | action = SNAPSHOT_DELETE; | |
2943 | snapshot_name = optarg; | |
2944 | break; | |
f382d43a MR |
2945 | case 'q': |
2946 | quiet = true; | |
2947 | break; | |
335e9937 FZ |
2948 | case 'U': |
2949 | force_share = true; | |
2950 | break; | |
3babeb15 DB |
2951 | case OPTION_OBJECT: { |
2952 | QemuOpts *opts; | |
2953 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
2954 | optarg, true); | |
2955 | if (!opts) { | |
2956 | return 1; | |
2957 | } | |
2958 | } break; | |
eb769f74 DB |
2959 | case OPTION_IMAGE_OPTS: |
2960 | image_opts = true; | |
2961 | break; | |
f7b4a940 AL |
2962 | } |
2963 | } | |
2964 | ||
fc11eb26 | 2965 | if (optind != argc - 1) { |
ac1307ab | 2966 | error_exit("Expecting one image file name"); |
b8fb60da | 2967 | } |
f7b4a940 AL |
2968 | filename = argv[optind++]; |
2969 | ||
3babeb15 DB |
2970 | if (qemu_opts_foreach(&qemu_object_opts, |
2971 | user_creatable_add_opts_foreach, | |
51b9b478 | 2972 | NULL, NULL)) { |
3babeb15 DB |
2973 | return 1; |
2974 | } | |
2975 | ||
f7b4a940 | 2976 | /* Open the image */ |
335e9937 FZ |
2977 | blk = img_open(image_opts, filename, NULL, bdrv_oflags, false, quiet, |
2978 | force_share); | |
7e7d56d9 MA |
2979 | if (!blk) { |
2980 | return 1; | |
c2abccec | 2981 | } |
7e7d56d9 | 2982 | bs = blk_bs(blk); |
f7b4a940 AL |
2983 | |
2984 | /* Perform the requested action */ | |
2985 | switch(action) { | |
2986 | case SNAPSHOT_LIST: | |
2987 | dump_snapshots(bs); | |
2988 | break; | |
2989 | ||
2990 | case SNAPSHOT_CREATE: | |
2991 | memset(&sn, 0, sizeof(sn)); | |
2992 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); | |
2993 | ||
2994 | qemu_gettimeofday(&tv); | |
2995 | sn.date_sec = tv.tv_sec; | |
2996 | sn.date_nsec = tv.tv_usec * 1000; | |
2997 | ||
2998 | ret = bdrv_snapshot_create(bs, &sn); | |
b8fb60da | 2999 | if (ret) { |
15654a6d | 3000 | error_report("Could not create snapshot '%s': %d (%s)", |
f7b4a940 | 3001 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 3002 | } |
f7b4a940 AL |
3003 | break; |
3004 | ||
3005 | case SNAPSHOT_APPLY: | |
3006 | ret = bdrv_snapshot_goto(bs, snapshot_name); | |
b8fb60da | 3007 | if (ret) { |
15654a6d | 3008 | error_report("Could not apply snapshot '%s': %d (%s)", |
f7b4a940 | 3009 | snapshot_name, ret, strerror(-ret)); |
b8fb60da | 3010 | } |
f7b4a940 AL |
3011 | break; |
3012 | ||
3013 | case SNAPSHOT_DELETE: | |
a89d89d3 | 3014 | bdrv_snapshot_delete_by_id_or_name(bs, snapshot_name, &err); |
84d18f06 | 3015 | if (err) { |
c29b77f9 MA |
3016 | error_reportf_err(err, "Could not delete snapshot '%s': ", |
3017 | snapshot_name); | |
a89d89d3 | 3018 | ret = 1; |
b8fb60da | 3019 | } |
f7b4a940 AL |
3020 | break; |
3021 | } | |
3022 | ||
3023 | /* Cleanup */ | |
26f54e9a | 3024 | blk_unref(blk); |
c2abccec MK |
3025 | if (ret) { |
3026 | return 1; | |
3027 | } | |
153859be | 3028 | return 0; |
f7b4a940 AL |
3029 | } |
3030 | ||
3e85c6fd KW |
3031 | static int img_rebase(int argc, char **argv) |
3032 | { | |
26f54e9a | 3033 | BlockBackend *blk = NULL, *blk_old_backing = NULL, *blk_new_backing = NULL; |
396374ca PB |
3034 | uint8_t *buf_old = NULL; |
3035 | uint8_t *buf_new = NULL; | |
f1d3cd79 | 3036 | BlockDriverState *bs = NULL; |
3e85c6fd | 3037 | char *filename; |
40055951 HR |
3038 | const char *fmt, *cache, *src_cache, *out_basefmt, *out_baseimg; |
3039 | int c, flags, src_flags, ret; | |
ce099547 | 3040 | bool writethrough, src_writethrough; |
3e85c6fd | 3041 | int unsafe = 0; |
335e9937 | 3042 | bool force_share = false; |
6b837bc4 | 3043 | int progress = 0; |
f382d43a | 3044 | bool quiet = false; |
34b5d2c6 | 3045 | Error *local_err = NULL; |
eb769f74 | 3046 | bool image_opts = false; |
3e85c6fd KW |
3047 | |
3048 | /* Parse commandline parameters */ | |
e53dbee0 | 3049 | fmt = NULL; |
661a0f71 | 3050 | cache = BDRV_DEFAULT_CACHE; |
40055951 | 3051 | src_cache = BDRV_DEFAULT_CACHE; |
3e85c6fd KW |
3052 | out_baseimg = NULL; |
3053 | out_basefmt = NULL; | |
3e85c6fd | 3054 | for(;;) { |
3babeb15 DB |
3055 | static const struct option long_options[] = { |
3056 | {"help", no_argument, 0, 'h'}, | |
3057 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3058 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 3059 | {"force-share", no_argument, 0, 'U'}, |
3babeb15 DB |
3060 | {0, 0, 0, 0} |
3061 | }; | |
335e9937 | 3062 | c = getopt_long(argc, argv, ":hf:F:b:upt:T:qU", |
3babeb15 | 3063 | long_options, NULL); |
b8fb60da | 3064 | if (c == -1) { |
3e85c6fd | 3065 | break; |
b8fb60da | 3066 | } |
3e85c6fd | 3067 | switch(c) { |
c9192973 SH |
3068 | case ':': |
3069 | missing_argument(argv[optind - 1]); | |
3070 | break; | |
ef87394c | 3071 | case '?': |
c9192973 SH |
3072 | unrecognized_option(argv[optind - 1]); |
3073 | break; | |
3e85c6fd KW |
3074 | case 'h': |
3075 | help(); | |
3076 | return 0; | |
e53dbee0 KW |
3077 | case 'f': |
3078 | fmt = optarg; | |
3079 | break; | |
3e85c6fd KW |
3080 | case 'F': |
3081 | out_basefmt = optarg; | |
3082 | break; | |
3083 | case 'b': | |
3084 | out_baseimg = optarg; | |
3085 | break; | |
3086 | case 'u': | |
3087 | unsafe = 1; | |
3088 | break; | |
6b837bc4 JS |
3089 | case 'p': |
3090 | progress = 1; | |
3091 | break; | |
661a0f71 FS |
3092 | case 't': |
3093 | cache = optarg; | |
3094 | break; | |
40055951 HR |
3095 | case 'T': |
3096 | src_cache = optarg; | |
3097 | break; | |
f382d43a MR |
3098 | case 'q': |
3099 | quiet = true; | |
3100 | break; | |
3babeb15 DB |
3101 | case OPTION_OBJECT: { |
3102 | QemuOpts *opts; | |
3103 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3104 | optarg, true); | |
3105 | if (!opts) { | |
3106 | return 1; | |
3107 | } | |
3108 | } break; | |
eb769f74 DB |
3109 | case OPTION_IMAGE_OPTS: |
3110 | image_opts = true; | |
3111 | break; | |
335e9937 FZ |
3112 | case 'U': |
3113 | force_share = true; | |
3114 | break; | |
3e85c6fd KW |
3115 | } |
3116 | } | |
3117 | ||
f382d43a MR |
3118 | if (quiet) { |
3119 | progress = 0; | |
3120 | } | |
3121 | ||
ac1307ab FZ |
3122 | if (optind != argc - 1) { |
3123 | error_exit("Expecting one image file name"); | |
3124 | } | |
3125 | if (!unsafe && !out_baseimg) { | |
3126 | error_exit("Must specify backing file (-b) or use unsafe mode (-u)"); | |
b8fb60da | 3127 | } |
3e85c6fd KW |
3128 | filename = argv[optind++]; |
3129 | ||
3babeb15 DB |
3130 | if (qemu_opts_foreach(&qemu_object_opts, |
3131 | user_creatable_add_opts_foreach, | |
51b9b478 | 3132 | NULL, NULL)) { |
3babeb15 DB |
3133 | return 1; |
3134 | } | |
3135 | ||
6b837bc4 JS |
3136 | qemu_progress_init(progress, 2.0); |
3137 | qemu_progress_print(0, 100); | |
3138 | ||
661a0f71 | 3139 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
ce099547 | 3140 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); |
661a0f71 FS |
3141 | if (ret < 0) { |
3142 | error_report("Invalid cache option: %s", cache); | |
40ed35a3 | 3143 | goto out; |
661a0f71 FS |
3144 | } |
3145 | ||
ce099547 KW |
3146 | src_flags = 0; |
3147 | ret = bdrv_parse_cache_mode(src_cache, &src_flags, &src_writethrough); | |
40055951 HR |
3148 | if (ret < 0) { |
3149 | error_report("Invalid source cache option: %s", src_cache); | |
40ed35a3 | 3150 | goto out; |
40055951 HR |
3151 | } |
3152 | ||
ce099547 KW |
3153 | /* The source files are opened read-only, don't care about WCE */ |
3154 | assert((src_flags & BDRV_O_RDWR) == 0); | |
3155 | (void) src_writethrough; | |
3156 | ||
3e85c6fd KW |
3157 | /* |
3158 | * Open the images. | |
3159 | * | |
3160 | * Ignore the old backing file for unsafe rebase in case we want to correct | |
3161 | * the reference to a renamed or moved backing file. | |
3162 | */ | |
335e9937 FZ |
3163 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
3164 | false); | |
7e7d56d9 | 3165 | if (!blk) { |
40ed35a3 SH |
3166 | ret = -1; |
3167 | goto out; | |
c2abccec | 3168 | } |
7e7d56d9 | 3169 | bs = blk_bs(blk); |
3e85c6fd | 3170 | |
3e85c6fd | 3171 | if (out_basefmt != NULL) { |
644483d9 | 3172 | if (bdrv_find_format(out_basefmt) == NULL) { |
15654a6d | 3173 | error_report("Invalid format name: '%s'", out_basefmt); |
c2abccec MK |
3174 | ret = -1; |
3175 | goto out; | |
3e85c6fd KW |
3176 | } |
3177 | } | |
3178 | ||
3179 | /* For safe rebasing we need to compare old and new backing file */ | |
40ed35a3 | 3180 | if (!unsafe) { |
9a29e18f | 3181 | char backing_name[PATH_MAX]; |
644483d9 HR |
3182 | QDict *options = NULL; |
3183 | ||
3184 | if (bs->backing_format[0] != '\0') { | |
3185 | options = qdict_new(); | |
46f5ac20 | 3186 | qdict_put_str(options, "driver", bs->backing_format); |
644483d9 | 3187 | } |
3e85c6fd | 3188 | |
335e9937 FZ |
3189 | if (force_share) { |
3190 | if (!options) { | |
3191 | options = qdict_new(); | |
3192 | } | |
579cf1d1 | 3193 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); |
335e9937 | 3194 | } |
3e85c6fd | 3195 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
efaa7c4e | 3196 | blk_old_backing = blk_new_open(backing_name, NULL, |
644483d9 HR |
3197 | options, src_flags, &local_err); |
3198 | if (!blk_old_backing) { | |
c29b77f9 MA |
3199 | error_reportf_err(local_err, |
3200 | "Could not open old backing file '%s': ", | |
3201 | backing_name); | |
e84a0dd5 | 3202 | ret = -1; |
c2abccec | 3203 | goto out; |
3e85c6fd | 3204 | } |
644483d9 | 3205 | |
a616673d | 3206 | if (out_baseimg[0]) { |
335e9937 | 3207 | options = qdict_new(); |
644483d9 | 3208 | if (out_basefmt) { |
46f5ac20 | 3209 | qdict_put_str(options, "driver", out_basefmt); |
335e9937 FZ |
3210 | } |
3211 | if (force_share) { | |
3212 | qdict_put_bool(options, BDRV_OPT_FORCE_SHARE, true); | |
644483d9 HR |
3213 | } |
3214 | ||
efaa7c4e | 3215 | blk_new_backing = blk_new_open(out_baseimg, NULL, |
644483d9 HR |
3216 | options, src_flags, &local_err); |
3217 | if (!blk_new_backing) { | |
c29b77f9 MA |
3218 | error_reportf_err(local_err, |
3219 | "Could not open new backing file '%s': ", | |
3220 | out_baseimg); | |
e84a0dd5 | 3221 | ret = -1; |
a616673d AB |
3222 | goto out; |
3223 | } | |
3e85c6fd KW |
3224 | } |
3225 | } | |
3226 | ||
3227 | /* | |
3228 | * Check each unallocated cluster in the COW file. If it is unallocated, | |
3229 | * accesses go to the backing file. We must therefore compare this cluster | |
3230 | * in the old and new backing file, and if they differ we need to copy it | |
3231 | * from the old backing file into the COW file. | |
3232 | * | |
3233 | * If qemu-img crashes during this step, no harm is done. The content of | |
3234 | * the image is the same as the original one at any time. | |
3235 | */ | |
3236 | if (!unsafe) { | |
52bf1e72 MA |
3237 | int64_t num_sectors; |
3238 | int64_t old_backing_num_sectors; | |
3239 | int64_t new_backing_num_sectors = 0; | |
3e85c6fd | 3240 | uint64_t sector; |
cc60e327 | 3241 | int n; |
d6a644bb | 3242 | int64_t count; |
1f710495 | 3243 | float local_progress = 0; |
d6771bfa | 3244 | |
f1d3cd79 HR |
3245 | buf_old = blk_blockalign(blk, IO_BUF_SIZE); |
3246 | buf_new = blk_blockalign(blk, IO_BUF_SIZE); | |
3e85c6fd | 3247 | |
f1d3cd79 | 3248 | num_sectors = blk_nb_sectors(blk); |
52bf1e72 MA |
3249 | if (num_sectors < 0) { |
3250 | error_report("Could not get size of '%s': %s", | |
3251 | filename, strerror(-num_sectors)); | |
3252 | ret = -1; | |
3253 | goto out; | |
3254 | } | |
f1d3cd79 | 3255 | old_backing_num_sectors = blk_nb_sectors(blk_old_backing); |
52bf1e72 | 3256 | if (old_backing_num_sectors < 0) { |
9a29e18f | 3257 | char backing_name[PATH_MAX]; |
52bf1e72 MA |
3258 | |
3259 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); | |
3260 | error_report("Could not get size of '%s': %s", | |
3261 | backing_name, strerror(-old_backing_num_sectors)); | |
3262 | ret = -1; | |
3263 | goto out; | |
3264 | } | |
f1d3cd79 HR |
3265 | if (blk_new_backing) { |
3266 | new_backing_num_sectors = blk_nb_sectors(blk_new_backing); | |
52bf1e72 MA |
3267 | if (new_backing_num_sectors < 0) { |
3268 | error_report("Could not get size of '%s': %s", | |
3269 | out_baseimg, strerror(-new_backing_num_sectors)); | |
3270 | ret = -1; | |
3271 | goto out; | |
3272 | } | |
a616673d | 3273 | } |
3e85c6fd | 3274 | |
1f710495 KW |
3275 | if (num_sectors != 0) { |
3276 | local_progress = (float)100 / | |
3277 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); | |
3278 | } | |
3279 | ||
3e85c6fd KW |
3280 | for (sector = 0; sector < num_sectors; sector += n) { |
3281 | ||
3282 | /* How many sectors can we handle with the next read? */ | |
3283 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { | |
3284 | n = (IO_BUF_SIZE / 512); | |
3285 | } else { | |
3286 | n = num_sectors - sector; | |
3287 | } | |
3288 | ||
3289 | /* If the cluster is allocated, we don't need to take action */ | |
d6a644bb EB |
3290 | ret = bdrv_is_allocated(bs, sector << BDRV_SECTOR_BITS, |
3291 | n << BDRV_SECTOR_BITS, &count); | |
d663640c PB |
3292 | if (ret < 0) { |
3293 | error_report("error while reading image metadata: %s", | |
3294 | strerror(-ret)); | |
3295 | goto out; | |
3296 | } | |
d6a644bb EB |
3297 | /* TODO relax this once bdrv_is_allocated does not enforce |
3298 | * sector alignment */ | |
3299 | assert(QEMU_IS_ALIGNED(count, BDRV_SECTOR_SIZE)); | |
3300 | n = count >> BDRV_SECTOR_BITS; | |
cc60e327 | 3301 | if (ret) { |
3e85c6fd KW |
3302 | continue; |
3303 | } | |
3304 | ||
87a1b3e3 KW |
3305 | /* |
3306 | * Read old and new backing file and take into consideration that | |
3307 | * backing files may be smaller than the COW image. | |
3308 | */ | |
3309 | if (sector >= old_backing_num_sectors) { | |
3310 | memset(buf_old, 0, n * BDRV_SECTOR_SIZE); | |
3311 | } else { | |
3312 | if (sector + n > old_backing_num_sectors) { | |
3313 | n = old_backing_num_sectors - sector; | |
3314 | } | |
3315 | ||
9166920a EB |
3316 | ret = blk_pread(blk_old_backing, sector << BDRV_SECTOR_BITS, |
3317 | buf_old, n << BDRV_SECTOR_BITS); | |
87a1b3e3 KW |
3318 | if (ret < 0) { |
3319 | error_report("error while reading from old backing file"); | |
3320 | goto out; | |
3321 | } | |
3e85c6fd | 3322 | } |
87a1b3e3 | 3323 | |
f1d3cd79 | 3324 | if (sector >= new_backing_num_sectors || !blk_new_backing) { |
87a1b3e3 KW |
3325 | memset(buf_new, 0, n * BDRV_SECTOR_SIZE); |
3326 | } else { | |
3327 | if (sector + n > new_backing_num_sectors) { | |
3328 | n = new_backing_num_sectors - sector; | |
3329 | } | |
3330 | ||
9166920a EB |
3331 | ret = blk_pread(blk_new_backing, sector << BDRV_SECTOR_BITS, |
3332 | buf_new, n << BDRV_SECTOR_BITS); | |
87a1b3e3 KW |
3333 | if (ret < 0) { |
3334 | error_report("error while reading from new backing file"); | |
3335 | goto out; | |
3336 | } | |
3e85c6fd KW |
3337 | } |
3338 | ||
3339 | /* If they differ, we need to write to the COW file */ | |
3340 | uint64_t written = 0; | |
3341 | ||
3342 | while (written < n) { | |
3343 | int pnum; | |
3344 | ||
3345 | if (compare_sectors(buf_old + written * 512, | |
60b1bd4f | 3346 | buf_new + written * 512, n - written, &pnum)) |
3e85c6fd | 3347 | { |
9166920a EB |
3348 | ret = blk_pwrite(blk, |
3349 | (sector + written) << BDRV_SECTOR_BITS, | |
3350 | buf_old + written * 512, | |
3351 | pnum << BDRV_SECTOR_BITS, 0); | |
3e85c6fd | 3352 | if (ret < 0) { |
15654a6d | 3353 | error_report("Error while writing to COW image: %s", |
3e85c6fd | 3354 | strerror(-ret)); |
c2abccec | 3355 | goto out; |
3e85c6fd KW |
3356 | } |
3357 | } | |
3358 | ||
3359 | written += pnum; | |
3360 | } | |
6b837bc4 | 3361 | qemu_progress_print(local_progress, 100); |
3e85c6fd KW |
3362 | } |
3363 | } | |
3364 | ||
3365 | /* | |
3366 | * Change the backing file. All clusters that are different from the old | |
3367 | * backing file are overwritten in the COW file now, so the visible content | |
3368 | * doesn't change when we switch the backing file. | |
3369 | */ | |
a616673d AB |
3370 | if (out_baseimg && *out_baseimg) { |
3371 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); | |
3372 | } else { | |
3373 | ret = bdrv_change_backing_file(bs, NULL, NULL); | |
3374 | } | |
3375 | ||
3e85c6fd | 3376 | if (ret == -ENOSPC) { |
15654a6d JS |
3377 | error_report("Could not change the backing file to '%s': No " |
3378 | "space left in the file header", out_baseimg); | |
3e85c6fd | 3379 | } else if (ret < 0) { |
15654a6d | 3380 | error_report("Could not change the backing file to '%s': %s", |
3e85c6fd KW |
3381 | out_baseimg, strerror(-ret)); |
3382 | } | |
3383 | ||
6b837bc4 | 3384 | qemu_progress_print(100, 0); |
3e85c6fd KW |
3385 | /* |
3386 | * TODO At this point it is possible to check if any clusters that are | |
3387 | * allocated in the COW file are the same in the backing file. If so, they | |
3388 | * could be dropped from the COW file. Don't do this before switching the | |
3389 | * backing file, in case of a crash this would lead to corruption. | |
3390 | */ | |
c2abccec | 3391 | out: |
6b837bc4 | 3392 | qemu_progress_end(); |
3e85c6fd KW |
3393 | /* Cleanup */ |
3394 | if (!unsafe) { | |
26f54e9a | 3395 | blk_unref(blk_old_backing); |
26f54e9a | 3396 | blk_unref(blk_new_backing); |
3e85c6fd | 3397 | } |
396374ca PB |
3398 | qemu_vfree(buf_old); |
3399 | qemu_vfree(buf_new); | |
3e85c6fd | 3400 | |
26f54e9a | 3401 | blk_unref(blk); |
c2abccec MK |
3402 | if (ret) { |
3403 | return 1; | |
3404 | } | |
3e85c6fd KW |
3405 | return 0; |
3406 | } | |
3407 | ||
ae6b0ed6 SH |
3408 | static int img_resize(int argc, char **argv) |
3409 | { | |
6750e795 | 3410 | Error *err = NULL; |
ae6b0ed6 SH |
3411 | int c, ret, relative; |
3412 | const char *filename, *fmt, *size; | |
dc5f690b | 3413 | int64_t n, total_size, current_size; |
f382d43a | 3414 | bool quiet = false; |
26f54e9a | 3415 | BlockBackend *blk = NULL; |
dc5f690b | 3416 | PreallocMode prealloc = PREALLOC_MODE_OFF; |
20caf0f7 | 3417 | QemuOpts *param; |
3babeb15 | 3418 | |
20caf0f7 DXW |
3419 | static QemuOptsList resize_options = { |
3420 | .name = "resize_options", | |
3421 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), | |
3422 | .desc = { | |
3423 | { | |
3424 | .name = BLOCK_OPT_SIZE, | |
3425 | .type = QEMU_OPT_SIZE, | |
3426 | .help = "Virtual disk size" | |
3427 | }, { | |
3428 | /* end of list */ | |
3429 | } | |
ae6b0ed6 | 3430 | }, |
ae6b0ed6 | 3431 | }; |
eb769f74 | 3432 | bool image_opts = false; |
ae6b0ed6 | 3433 | |
e80fec7f KW |
3434 | /* Remove size from argv manually so that negative numbers are not treated |
3435 | * as options by getopt. */ | |
3436 | if (argc < 3) { | |
ac1307ab | 3437 | error_exit("Not enough arguments"); |
e80fec7f KW |
3438 | return 1; |
3439 | } | |
3440 | ||
3441 | size = argv[--argc]; | |
3442 | ||
3443 | /* Parse getopt arguments */ | |
ae6b0ed6 SH |
3444 | fmt = NULL; |
3445 | for(;;) { | |
3babeb15 DB |
3446 | static const struct option long_options[] = { |
3447 | {"help", no_argument, 0, 'h'}, | |
3448 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3449 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
dc5f690b | 3450 | {"preallocation", required_argument, 0, OPTION_PREALLOCATION}, |
3babeb15 DB |
3451 | {0, 0, 0, 0} |
3452 | }; | |
c9192973 | 3453 | c = getopt_long(argc, argv, ":f:hq", |
3babeb15 | 3454 | long_options, NULL); |
ae6b0ed6 SH |
3455 | if (c == -1) { |
3456 | break; | |
3457 | } | |
3458 | switch(c) { | |
c9192973 SH |
3459 | case ':': |
3460 | missing_argument(argv[optind - 1]); | |
3461 | break; | |
ef87394c | 3462 | case '?': |
c9192973 SH |
3463 | unrecognized_option(argv[optind - 1]); |
3464 | break; | |
ae6b0ed6 SH |
3465 | case 'h': |
3466 | help(); | |
3467 | break; | |
3468 | case 'f': | |
3469 | fmt = optarg; | |
3470 | break; | |
f382d43a MR |
3471 | case 'q': |
3472 | quiet = true; | |
3473 | break; | |
3babeb15 DB |
3474 | case OPTION_OBJECT: { |
3475 | QemuOpts *opts; | |
3476 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3477 | optarg, true); | |
3478 | if (!opts) { | |
3479 | return 1; | |
3480 | } | |
3481 | } break; | |
eb769f74 DB |
3482 | case OPTION_IMAGE_OPTS: |
3483 | image_opts = true; | |
3484 | break; | |
dc5f690b HR |
3485 | case OPTION_PREALLOCATION: |
3486 | prealloc = qapi_enum_parse(PreallocMode_lookup, optarg, | |
3487 | PREALLOC_MODE__MAX, PREALLOC_MODE__MAX, | |
3488 | NULL); | |
3489 | if (prealloc == PREALLOC_MODE__MAX) { | |
3490 | error_report("Invalid preallocation mode '%s'", optarg); | |
3491 | return 1; | |
3492 | } | |
3493 | break; | |
ae6b0ed6 SH |
3494 | } |
3495 | } | |
fc11eb26 | 3496 | if (optind != argc - 1) { |
ac1307ab | 3497 | error_exit("Expecting one image file name"); |
ae6b0ed6 SH |
3498 | } |
3499 | filename = argv[optind++]; | |
ae6b0ed6 | 3500 | |
3babeb15 DB |
3501 | if (qemu_opts_foreach(&qemu_object_opts, |
3502 | user_creatable_add_opts_foreach, | |
51b9b478 | 3503 | NULL, NULL)) { |
3babeb15 DB |
3504 | return 1; |
3505 | } | |
3506 | ||
ae6b0ed6 SH |
3507 | /* Choose grow, shrink, or absolute resize mode */ |
3508 | switch (size[0]) { | |
3509 | case '+': | |
3510 | relative = 1; | |
3511 | size++; | |
3512 | break; | |
3513 | case '-': | |
3514 | relative = -1; | |
3515 | size++; | |
3516 | break; | |
3517 | default: | |
3518 | relative = 0; | |
3519 | break; | |
3520 | } | |
3521 | ||
3522 | /* Parse size */ | |
87ea75d5 | 3523 | param = qemu_opts_create(&resize_options, NULL, 0, &error_abort); |
f43e47db | 3524 | qemu_opt_set(param, BLOCK_OPT_SIZE, size, &err); |
6750e795 MA |
3525 | if (err) { |
3526 | error_report_err(err); | |
2a81998a | 3527 | ret = -1; |
20caf0f7 | 3528 | qemu_opts_del(param); |
2a81998a | 3529 | goto out; |
ae6b0ed6 | 3530 | } |
20caf0f7 DXW |
3531 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
3532 | qemu_opts_del(param); | |
ae6b0ed6 | 3533 | |
efaa7c4e | 3534 | blk = img_open(image_opts, filename, fmt, |
335e9937 FZ |
3535 | BDRV_O_RDWR | BDRV_O_RESIZE, false, quiet, |
3536 | false); | |
7e7d56d9 | 3537 | if (!blk) { |
2a81998a JS |
3538 | ret = -1; |
3539 | goto out; | |
c2abccec | 3540 | } |
ae6b0ed6 | 3541 | |
dc5f690b HR |
3542 | current_size = blk_getlength(blk); |
3543 | if (current_size < 0) { | |
3544 | error_report("Failed to inquire current image length: %s", | |
3545 | strerror(-current_size)); | |
3546 | ret = -1; | |
3547 | goto out; | |
3548 | } | |
3549 | ||
ae6b0ed6 | 3550 | if (relative) { |
dc5f690b | 3551 | total_size = current_size + n * relative; |
ae6b0ed6 SH |
3552 | } else { |
3553 | total_size = n; | |
3554 | } | |
3555 | if (total_size <= 0) { | |
15654a6d | 3556 | error_report("New image size must be positive"); |
c2abccec MK |
3557 | ret = -1; |
3558 | goto out; | |
ae6b0ed6 SH |
3559 | } |
3560 | ||
dc5f690b HR |
3561 | if (total_size <= current_size && prealloc != PREALLOC_MODE_OFF) { |
3562 | error_report("Preallocation can only be used for growing images"); | |
3563 | ret = -1; | |
3564 | goto out; | |
3565 | } | |
3566 | ||
3567 | ret = blk_truncate(blk, total_size, prealloc, &err); | |
ed3d2ec9 | 3568 | if (!ret) { |
f382d43a | 3569 | qprintf(quiet, "Image resized.\n"); |
ed3d2ec9 HR |
3570 | } else { |
3571 | error_report_err(err); | |
ae6b0ed6 | 3572 | } |
c2abccec | 3573 | out: |
26f54e9a | 3574 | blk_unref(blk); |
c2abccec MK |
3575 | if (ret) { |
3576 | return 1; | |
3577 | } | |
ae6b0ed6 SH |
3578 | return 0; |
3579 | } | |
3580 | ||
76a3a34d | 3581 | static void amend_status_cb(BlockDriverState *bs, |
8b13976d HR |
3582 | int64_t offset, int64_t total_work_size, |
3583 | void *opaque) | |
76a3a34d HR |
3584 | { |
3585 | qemu_progress_print(100.f * offset / total_work_size, 0); | |
3586 | } | |
3587 | ||
6f176b48 HR |
3588 | static int img_amend(int argc, char **argv) |
3589 | { | |
dc523cd3 | 3590 | Error *err = NULL; |
6f176b48 HR |
3591 | int c, ret = 0; |
3592 | char *options = NULL; | |
83d0521a CL |
3593 | QemuOptsList *create_opts = NULL; |
3594 | QemuOpts *opts = NULL; | |
bd39e6ed HR |
3595 | const char *fmt = NULL, *filename, *cache; |
3596 | int flags; | |
ce099547 | 3597 | bool writethrough; |
76a3a34d | 3598 | bool quiet = false, progress = false; |
26f54e9a | 3599 | BlockBackend *blk = NULL; |
6f176b48 | 3600 | BlockDriverState *bs = NULL; |
eb769f74 | 3601 | bool image_opts = false; |
6f176b48 | 3602 | |
bd39e6ed | 3603 | cache = BDRV_DEFAULT_CACHE; |
6f176b48 | 3604 | for (;;) { |
3babeb15 DB |
3605 | static const struct option long_options[] = { |
3606 | {"help", no_argument, 0, 'h'}, | |
3607 | {"object", required_argument, 0, OPTION_OBJECT}, | |
eb769f74 | 3608 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
3babeb15 DB |
3609 | {0, 0, 0, 0} |
3610 | }; | |
c9192973 | 3611 | c = getopt_long(argc, argv, ":ho:f:t:pq", |
3babeb15 | 3612 | long_options, NULL); |
6f176b48 HR |
3613 | if (c == -1) { |
3614 | break; | |
3615 | } | |
3616 | ||
3617 | switch (c) { | |
c9192973 SH |
3618 | case ':': |
3619 | missing_argument(argv[optind - 1]); | |
3620 | break; | |
f7077624 | 3621 | case '?': |
c9192973 SH |
3622 | unrecognized_option(argv[optind - 1]); |
3623 | break; | |
3624 | case 'h': | |
f7077624 SH |
3625 | help(); |
3626 | break; | |
3627 | case 'o': | |
3628 | if (!is_valid_option_list(optarg)) { | |
3629 | error_report("Invalid option list: %s", optarg); | |
3630 | ret = -1; | |
3631 | goto out_no_progress; | |
3632 | } | |
3633 | if (!options) { | |
3634 | options = g_strdup(optarg); | |
3635 | } else { | |
3636 | char *old_options = options; | |
3637 | options = g_strdup_printf("%s,%s", options, optarg); | |
3638 | g_free(old_options); | |
3639 | } | |
3640 | break; | |
3641 | case 'f': | |
3642 | fmt = optarg; | |
3643 | break; | |
3644 | case 't': | |
3645 | cache = optarg; | |
3646 | break; | |
3647 | case 'p': | |
3648 | progress = true; | |
3649 | break; | |
3650 | case 'q': | |
3651 | quiet = true; | |
3652 | break; | |
3653 | case OPTION_OBJECT: | |
3654 | opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
3655 | optarg, true); | |
3656 | if (!opts) { | |
3657 | ret = -1; | |
3658 | goto out_no_progress; | |
3659 | } | |
3660 | break; | |
3661 | case OPTION_IMAGE_OPTS: | |
3662 | image_opts = true; | |
3663 | break; | |
6f176b48 HR |
3664 | } |
3665 | } | |
3666 | ||
a283cb6e | 3667 | if (!options) { |
ac1307ab | 3668 | error_exit("Must specify options (-o)"); |
6f176b48 HR |
3669 | } |
3670 | ||
3babeb15 DB |
3671 | if (qemu_opts_foreach(&qemu_object_opts, |
3672 | user_creatable_add_opts_foreach, | |
51b9b478 | 3673 | NULL, NULL)) { |
3babeb15 DB |
3674 | ret = -1; |
3675 | goto out_no_progress; | |
3676 | } | |
3677 | ||
76a3a34d HR |
3678 | if (quiet) { |
3679 | progress = false; | |
3680 | } | |
3681 | qemu_progress_init(progress, 1.0); | |
3682 | ||
a283cb6e KW |
3683 | filename = (optind == argc - 1) ? argv[argc - 1] : NULL; |
3684 | if (fmt && has_help_option(options)) { | |
3685 | /* If a format is explicitly specified (and possibly no filename is | |
3686 | * given), print option help here */ | |
3687 | ret = print_block_option_help(filename, fmt); | |
3688 | goto out; | |
6f176b48 HR |
3689 | } |
3690 | ||
a283cb6e | 3691 | if (optind != argc - 1) { |
b2f27e44 HR |
3692 | error_report("Expecting one image file name"); |
3693 | ret = -1; | |
3694 | goto out; | |
a283cb6e | 3695 | } |
6f176b48 | 3696 | |
ce099547 KW |
3697 | flags = BDRV_O_RDWR; |
3698 | ret = bdrv_parse_cache_mode(cache, &flags, &writethrough); | |
bd39e6ed HR |
3699 | if (ret < 0) { |
3700 | error_report("Invalid cache option: %s", cache); | |
3701 | goto out; | |
3702 | } | |
3703 | ||
335e9937 FZ |
3704 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
3705 | false); | |
7e7d56d9 | 3706 | if (!blk) { |
6f176b48 HR |
3707 | ret = -1; |
3708 | goto out; | |
3709 | } | |
7e7d56d9 | 3710 | bs = blk_bs(blk); |
6f176b48 HR |
3711 | |
3712 | fmt = bs->drv->format_name; | |
3713 | ||
626f84f3 | 3714 | if (has_help_option(options)) { |
a283cb6e | 3715 | /* If the format was auto-detected, print option help here */ |
6f176b48 HR |
3716 | ret = print_block_option_help(filename, fmt); |
3717 | goto out; | |
3718 | } | |
3719 | ||
b2439d26 HR |
3720 | if (!bs->drv->create_opts) { |
3721 | error_report("Format driver '%s' does not support any options to amend", | |
3722 | fmt); | |
3723 | ret = -1; | |
3724 | goto out; | |
3725 | } | |
3726 | ||
c282e1fd | 3727 | create_opts = qemu_opts_append(create_opts, bs->drv->create_opts); |
83d0521a | 3728 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); |
ece9086e PB |
3729 | qemu_opts_do_parse(opts, options, NULL, &err); |
3730 | if (err) { | |
3731 | error_report_err(err); | |
3732 | ret = -1; | |
3733 | goto out; | |
6f176b48 HR |
3734 | } |
3735 | ||
76a3a34d HR |
3736 | /* In case the driver does not call amend_status_cb() */ |
3737 | qemu_progress_print(0.f, 0); | |
8b13976d | 3738 | ret = bdrv_amend_options(bs, opts, &amend_status_cb, NULL); |
76a3a34d | 3739 | qemu_progress_print(100.f, 0); |
6f176b48 HR |
3740 | if (ret < 0) { |
3741 | error_report("Error while amending options: %s", strerror(-ret)); | |
3742 | goto out; | |
3743 | } | |
3744 | ||
3745 | out: | |
76a3a34d HR |
3746 | qemu_progress_end(); |
3747 | ||
e814dffc | 3748 | out_no_progress: |
26f54e9a | 3749 | blk_unref(blk); |
83d0521a CL |
3750 | qemu_opts_del(opts); |
3751 | qemu_opts_free(create_opts); | |
626f84f3 KW |
3752 | g_free(options); |
3753 | ||
6f176b48 HR |
3754 | if (ret) { |
3755 | return 1; | |
3756 | } | |
3757 | return 0; | |
3758 | } | |
3759 | ||
b6133b8c KW |
3760 | typedef struct BenchData { |
3761 | BlockBackend *blk; | |
3762 | uint64_t image_size; | |
b6495fa8 | 3763 | bool write; |
b6133b8c | 3764 | int bufsize; |
83de9be0 | 3765 | int step; |
b6133b8c KW |
3766 | int nrreq; |
3767 | int n; | |
55d539c8 KW |
3768 | int flush_interval; |
3769 | bool drain_on_flush; | |
b6133b8c KW |
3770 | uint8_t *buf; |
3771 | QEMUIOVector *qiov; | |
3772 | ||
3773 | int in_flight; | |
55d539c8 | 3774 | bool in_flush; |
b6133b8c KW |
3775 | uint64_t offset; |
3776 | } BenchData; | |
3777 | ||
55d539c8 KW |
3778 | static void bench_undrained_flush_cb(void *opaque, int ret) |
3779 | { | |
3780 | if (ret < 0) { | |
df3c286c | 3781 | error_report("Failed flush request: %s", strerror(-ret)); |
55d539c8 KW |
3782 | exit(EXIT_FAILURE); |
3783 | } | |
3784 | } | |
3785 | ||
b6133b8c KW |
3786 | static void bench_cb(void *opaque, int ret) |
3787 | { | |
3788 | BenchData *b = opaque; | |
3789 | BlockAIOCB *acb; | |
3790 | ||
3791 | if (ret < 0) { | |
df3c286c | 3792 | error_report("Failed request: %s", strerror(-ret)); |
b6133b8c KW |
3793 | exit(EXIT_FAILURE); |
3794 | } | |
55d539c8 KW |
3795 | |
3796 | if (b->in_flush) { | |
3797 | /* Just finished a flush with drained queue: Start next requests */ | |
3798 | assert(b->in_flight == 0); | |
3799 | b->in_flush = false; | |
3800 | } else if (b->in_flight > 0) { | |
3801 | int remaining = b->n - b->in_flight; | |
3802 | ||
b6133b8c KW |
3803 | b->n--; |
3804 | b->in_flight--; | |
55d539c8 KW |
3805 | |
3806 | /* Time for flush? Drain queue if requested, then flush */ | |
3807 | if (b->flush_interval && remaining % b->flush_interval == 0) { | |
3808 | if (!b->in_flight || !b->drain_on_flush) { | |
3809 | BlockCompletionFunc *cb; | |
3810 | ||
3811 | if (b->drain_on_flush) { | |
3812 | b->in_flush = true; | |
3813 | cb = bench_cb; | |
3814 | } else { | |
3815 | cb = bench_undrained_flush_cb; | |
3816 | } | |
3817 | ||
3818 | acb = blk_aio_flush(b->blk, cb, b); | |
3819 | if (!acb) { | |
3820 | error_report("Failed to issue flush request"); | |
3821 | exit(EXIT_FAILURE); | |
3822 | } | |
3823 | } | |
3824 | if (b->drain_on_flush) { | |
3825 | return; | |
3826 | } | |
3827 | } | |
b6133b8c KW |
3828 | } |
3829 | ||
3830 | while (b->n > b->in_flight && b->in_flight < b->nrreq) { | |
4baaa8c3 PB |
3831 | int64_t offset = b->offset; |
3832 | /* blk_aio_* might look for completed I/Os and kick bench_cb | |
3833 | * again, so make sure this operation is counted by in_flight | |
3834 | * and b->offset is ready for the next submission. | |
3835 | */ | |
3836 | b->in_flight++; | |
3837 | b->offset += b->step; | |
3838 | b->offset %= b->image_size; | |
b6495fa8 | 3839 | if (b->write) { |
4baaa8c3 | 3840 | acb = blk_aio_pwritev(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 3841 | } else { |
4baaa8c3 | 3842 | acb = blk_aio_preadv(b->blk, offset, b->qiov, 0, bench_cb, b); |
b6495fa8 | 3843 | } |
b6133b8c KW |
3844 | if (!acb) { |
3845 | error_report("Failed to issue request"); | |
3846 | exit(EXIT_FAILURE); | |
3847 | } | |
b6133b8c KW |
3848 | } |
3849 | } | |
3850 | ||
3851 | static int img_bench(int argc, char **argv) | |
3852 | { | |
3853 | int c, ret = 0; | |
3854 | const char *fmt = NULL, *filename; | |
3855 | bool quiet = false; | |
3856 | bool image_opts = false; | |
b6495fa8 | 3857 | bool is_write = false; |
b6133b8c KW |
3858 | int count = 75000; |
3859 | int depth = 64; | |
d3199a31 | 3860 | int64_t offset = 0; |
b6133b8c | 3861 | size_t bufsize = 4096; |
b6495fa8 | 3862 | int pattern = 0; |
83de9be0 | 3863 | size_t step = 0; |
55d539c8 KW |
3864 | int flush_interval = 0; |
3865 | bool drain_on_flush = true; | |
b6133b8c KW |
3866 | int64_t image_size; |
3867 | BlockBackend *blk = NULL; | |
3868 | BenchData data = {}; | |
3869 | int flags = 0; | |
604e8613 | 3870 | bool writethrough = false; |
b6133b8c KW |
3871 | struct timeval t1, t2; |
3872 | int i; | |
335e9937 | 3873 | bool force_share = false; |
b6133b8c KW |
3874 | |
3875 | for (;;) { | |
3876 | static const struct option long_options[] = { | |
3877 | {"help", no_argument, 0, 'h'}, | |
55d539c8 | 3878 | {"flush-interval", required_argument, 0, OPTION_FLUSH_INTERVAL}, |
b6133b8c | 3879 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
b6495fa8 | 3880 | {"pattern", required_argument, 0, OPTION_PATTERN}, |
55d539c8 | 3881 | {"no-drain", no_argument, 0, OPTION_NO_DRAIN}, |
335e9937 | 3882 | {"force-share", no_argument, 0, 'U'}, |
b6133b8c KW |
3883 | {0, 0, 0, 0} |
3884 | }; | |
335e9937 | 3885 | c = getopt_long(argc, argv, ":hc:d:f:no:qs:S:t:wU", long_options, NULL); |
b6133b8c KW |
3886 | if (c == -1) { |
3887 | break; | |
3888 | } | |
3889 | ||
3890 | switch (c) { | |
c9192973 SH |
3891 | case ':': |
3892 | missing_argument(argv[optind - 1]); | |
3893 | break; | |
b6133b8c | 3894 | case '?': |
c9192973 SH |
3895 | unrecognized_option(argv[optind - 1]); |
3896 | break; | |
3897 | case 'h': | |
b6133b8c KW |
3898 | help(); |
3899 | break; | |
3900 | case 'c': | |
3901 | { | |
8b3c6792 PM |
3902 | unsigned long res; |
3903 | ||
3904 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
3905 | error_report("Invalid request count specified"); |
3906 | return 1; | |
3907 | } | |
8b3c6792 | 3908 | count = res; |
b6133b8c KW |
3909 | break; |
3910 | } | |
3911 | case 'd': | |
3912 | { | |
8b3c6792 PM |
3913 | unsigned long res; |
3914 | ||
3915 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
b6133b8c KW |
3916 | error_report("Invalid queue depth specified"); |
3917 | return 1; | |
3918 | } | |
8b3c6792 | 3919 | depth = res; |
b6133b8c KW |
3920 | break; |
3921 | } | |
3922 | case 'f': | |
3923 | fmt = optarg; | |
3924 | break; | |
3925 | case 'n': | |
3926 | flags |= BDRV_O_NATIVE_AIO; | |
3927 | break; | |
d3199a31 KW |
3928 | case 'o': |
3929 | { | |
606caa0a MA |
3930 | offset = cvtnum(optarg); |
3931 | if (offset < 0) { | |
d3199a31 KW |
3932 | error_report("Invalid offset specified"); |
3933 | return 1; | |
3934 | } | |
3935 | break; | |
3936 | } | |
3937 | break; | |
b6133b8c KW |
3938 | case 'q': |
3939 | quiet = true; | |
3940 | break; | |
3941 | case 's': | |
3942 | { | |
3943 | int64_t sval; | |
b6133b8c | 3944 | |
606caa0a MA |
3945 | sval = cvtnum(optarg); |
3946 | if (sval < 0 || sval > INT_MAX) { | |
b6133b8c KW |
3947 | error_report("Invalid buffer size specified"); |
3948 | return 1; | |
3949 | } | |
3950 | ||
3951 | bufsize = sval; | |
3952 | break; | |
3953 | } | |
83de9be0 KW |
3954 | case 'S': |
3955 | { | |
3956 | int64_t sval; | |
83de9be0 | 3957 | |
606caa0a MA |
3958 | sval = cvtnum(optarg); |
3959 | if (sval < 0 || sval > INT_MAX) { | |
83de9be0 KW |
3960 | error_report("Invalid step size specified"); |
3961 | return 1; | |
3962 | } | |
3963 | ||
3964 | step = sval; | |
3965 | break; | |
3966 | } | |
b6133b8c KW |
3967 | case 't': |
3968 | ret = bdrv_parse_cache_mode(optarg, &flags, &writethrough); | |
3969 | if (ret < 0) { | |
3970 | error_report("Invalid cache mode"); | |
3971 | ret = -1; | |
3972 | goto out; | |
3973 | } | |
3974 | break; | |
b6495fa8 KW |
3975 | case 'w': |
3976 | flags |= BDRV_O_RDWR; | |
3977 | is_write = true; | |
3978 | break; | |
335e9937 FZ |
3979 | case 'U': |
3980 | force_share = true; | |
3981 | break; | |
b6495fa8 KW |
3982 | case OPTION_PATTERN: |
3983 | { | |
8b3c6792 PM |
3984 | unsigned long res; |
3985 | ||
3986 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > 0xff) { | |
b6495fa8 KW |
3987 | error_report("Invalid pattern byte specified"); |
3988 | return 1; | |
3989 | } | |
8b3c6792 | 3990 | pattern = res; |
b6495fa8 KW |
3991 | break; |
3992 | } | |
55d539c8 KW |
3993 | case OPTION_FLUSH_INTERVAL: |
3994 | { | |
8b3c6792 PM |
3995 | unsigned long res; |
3996 | ||
3997 | if (qemu_strtoul(optarg, NULL, 0, &res) < 0 || res > INT_MAX) { | |
55d539c8 KW |
3998 | error_report("Invalid flush interval specified"); |
3999 | return 1; | |
4000 | } | |
8b3c6792 | 4001 | flush_interval = res; |
55d539c8 KW |
4002 | break; |
4003 | } | |
4004 | case OPTION_NO_DRAIN: | |
4005 | drain_on_flush = false; | |
4006 | break; | |
b6133b8c KW |
4007 | case OPTION_IMAGE_OPTS: |
4008 | image_opts = true; | |
4009 | break; | |
4010 | } | |
4011 | } | |
4012 | ||
4013 | if (optind != argc - 1) { | |
4014 | error_exit("Expecting one image file name"); | |
4015 | } | |
4016 | filename = argv[argc - 1]; | |
4017 | ||
55d539c8 KW |
4018 | if (!is_write && flush_interval) { |
4019 | error_report("--flush-interval is only available in write tests"); | |
4020 | ret = -1; | |
4021 | goto out; | |
4022 | } | |
4023 | if (flush_interval && flush_interval < depth) { | |
4024 | error_report("Flush interval can't be smaller than depth"); | |
4025 | ret = -1; | |
4026 | goto out; | |
4027 | } | |
4028 | ||
335e9937 FZ |
4029 | blk = img_open(image_opts, filename, fmt, flags, writethrough, quiet, |
4030 | force_share); | |
b6133b8c KW |
4031 | if (!blk) { |
4032 | ret = -1; | |
4033 | goto out; | |
4034 | } | |
4035 | ||
4036 | image_size = blk_getlength(blk); | |
4037 | if (image_size < 0) { | |
4038 | ret = image_size; | |
4039 | goto out; | |
4040 | } | |
4041 | ||
4042 | data = (BenchData) { | |
55d539c8 KW |
4043 | .blk = blk, |
4044 | .image_size = image_size, | |
4045 | .bufsize = bufsize, | |
4046 | .step = step ?: bufsize, | |
4047 | .nrreq = depth, | |
4048 | .n = count, | |
4049 | .offset = offset, | |
4050 | .write = is_write, | |
4051 | .flush_interval = flush_interval, | |
4052 | .drain_on_flush = drain_on_flush, | |
b6133b8c | 4053 | }; |
d3199a31 | 4054 | printf("Sending %d %s requests, %d bytes each, %d in parallel " |
83de9be0 | 4055 | "(starting at offset %" PRId64 ", step size %d)\n", |
d3199a31 | 4056 | data.n, data.write ? "write" : "read", data.bufsize, data.nrreq, |
83de9be0 | 4057 | data.offset, data.step); |
55d539c8 KW |
4058 | if (flush_interval) { |
4059 | printf("Sending flush every %d requests\n", flush_interval); | |
4060 | } | |
b6133b8c KW |
4061 | |
4062 | data.buf = blk_blockalign(blk, data.nrreq * data.bufsize); | |
b6495fa8 KW |
4063 | memset(data.buf, pattern, data.nrreq * data.bufsize); |
4064 | ||
b6133b8c KW |
4065 | data.qiov = g_new(QEMUIOVector, data.nrreq); |
4066 | for (i = 0; i < data.nrreq; i++) { | |
4067 | qemu_iovec_init(&data.qiov[i], 1); | |
4068 | qemu_iovec_add(&data.qiov[i], | |
4069 | data.buf + i * data.bufsize, data.bufsize); | |
4070 | } | |
4071 | ||
4072 | gettimeofday(&t1, NULL); | |
4073 | bench_cb(&data, 0); | |
4074 | ||
4075 | while (data.n > 0) { | |
4076 | main_loop_wait(false); | |
4077 | } | |
4078 | gettimeofday(&t2, NULL); | |
4079 | ||
4080 | printf("Run completed in %3.3f seconds.\n", | |
4081 | (t2.tv_sec - t1.tv_sec) | |
4082 | + ((double)(t2.tv_usec - t1.tv_usec) / 1000000)); | |
4083 | ||
4084 | out: | |
4085 | qemu_vfree(data.buf); | |
4086 | blk_unref(blk); | |
4087 | ||
4088 | if (ret) { | |
86ce1f6e RS |
4089 | return 1; |
4090 | } | |
4091 | return 0; | |
4092 | } | |
4093 | ||
4094 | #define C_BS 01 | |
4095 | #define C_COUNT 02 | |
4096 | #define C_IF 04 | |
4097 | #define C_OF 010 | |
f7c15533 | 4098 | #define C_SKIP 020 |
86ce1f6e RS |
4099 | |
4100 | struct DdInfo { | |
4101 | unsigned int flags; | |
4102 | int64_t count; | |
4103 | }; | |
4104 | ||
4105 | struct DdIo { | |
4106 | int bsz; /* Block size */ | |
4107 | char *filename; | |
4108 | uint8_t *buf; | |
f7c15533 | 4109 | int64_t offset; |
86ce1f6e RS |
4110 | }; |
4111 | ||
4112 | struct DdOpts { | |
4113 | const char *name; | |
4114 | int (*f)(const char *, struct DdIo *, struct DdIo *, struct DdInfo *); | |
4115 | unsigned int flag; | |
4116 | }; | |
4117 | ||
4118 | static int img_dd_bs(const char *arg, | |
4119 | struct DdIo *in, struct DdIo *out, | |
4120 | struct DdInfo *dd) | |
4121 | { | |
86ce1f6e RS |
4122 | int64_t res; |
4123 | ||
606caa0a | 4124 | res = cvtnum(arg); |
86ce1f6e | 4125 | |
606caa0a | 4126 | if (res <= 0 || res > INT_MAX) { |
86ce1f6e RS |
4127 | error_report("invalid number: '%s'", arg); |
4128 | return 1; | |
4129 | } | |
4130 | in->bsz = out->bsz = res; | |
4131 | ||
4132 | return 0; | |
4133 | } | |
4134 | ||
4135 | static int img_dd_count(const char *arg, | |
4136 | struct DdIo *in, struct DdIo *out, | |
4137 | struct DdInfo *dd) | |
4138 | { | |
606caa0a | 4139 | dd->count = cvtnum(arg); |
86ce1f6e | 4140 | |
606caa0a | 4141 | if (dd->count < 0) { |
86ce1f6e RS |
4142 | error_report("invalid number: '%s'", arg); |
4143 | return 1; | |
4144 | } | |
4145 | ||
4146 | return 0; | |
4147 | } | |
4148 | ||
4149 | static int img_dd_if(const char *arg, | |
4150 | struct DdIo *in, struct DdIo *out, | |
4151 | struct DdInfo *dd) | |
4152 | { | |
4153 | in->filename = g_strdup(arg); | |
4154 | ||
4155 | return 0; | |
4156 | } | |
4157 | ||
4158 | static int img_dd_of(const char *arg, | |
4159 | struct DdIo *in, struct DdIo *out, | |
4160 | struct DdInfo *dd) | |
4161 | { | |
4162 | out->filename = g_strdup(arg); | |
4163 | ||
4164 | return 0; | |
4165 | } | |
4166 | ||
f7c15533 RS |
4167 | static int img_dd_skip(const char *arg, |
4168 | struct DdIo *in, struct DdIo *out, | |
4169 | struct DdInfo *dd) | |
4170 | { | |
606caa0a | 4171 | in->offset = cvtnum(arg); |
f7c15533 | 4172 | |
606caa0a | 4173 | if (in->offset < 0) { |
f7c15533 RS |
4174 | error_report("invalid number: '%s'", arg); |
4175 | return 1; | |
4176 | } | |
4177 | ||
4178 | return 0; | |
4179 | } | |
4180 | ||
86ce1f6e RS |
4181 | static int img_dd(int argc, char **argv) |
4182 | { | |
4183 | int ret = 0; | |
4184 | char *arg = NULL; | |
4185 | char *tmp; | |
4186 | BlockDriver *drv = NULL, *proto_drv = NULL; | |
4187 | BlockBackend *blk1 = NULL, *blk2 = NULL; | |
4188 | QemuOpts *opts = NULL; | |
4189 | QemuOptsList *create_opts = NULL; | |
4190 | Error *local_err = NULL; | |
4191 | bool image_opts = false; | |
4192 | int c, i; | |
4193 | const char *out_fmt = "raw"; | |
4194 | const char *fmt = NULL; | |
4195 | int64_t size = 0; | |
4196 | int64_t block_count = 0, out_pos, in_pos; | |
335e9937 | 4197 | bool force_share = false; |
86ce1f6e RS |
4198 | struct DdInfo dd = { |
4199 | .flags = 0, | |
4200 | .count = 0, | |
4201 | }; | |
4202 | struct DdIo in = { | |
4203 | .bsz = 512, /* Block size is by default 512 bytes */ | |
4204 | .filename = NULL, | |
f7c15533 RS |
4205 | .buf = NULL, |
4206 | .offset = 0 | |
86ce1f6e RS |
4207 | }; |
4208 | struct DdIo out = { | |
4209 | .bsz = 512, | |
4210 | .filename = NULL, | |
f7c15533 RS |
4211 | .buf = NULL, |
4212 | .offset = 0 | |
86ce1f6e RS |
4213 | }; |
4214 | ||
4215 | const struct DdOpts options[] = { | |
4216 | { "bs", img_dd_bs, C_BS }, | |
4217 | { "count", img_dd_count, C_COUNT }, | |
4218 | { "if", img_dd_if, C_IF }, | |
4219 | { "of", img_dd_of, C_OF }, | |
f7c15533 | 4220 | { "skip", img_dd_skip, C_SKIP }, |
86ce1f6e RS |
4221 | { NULL, NULL, 0 } |
4222 | }; | |
4223 | const struct option long_options[] = { | |
4224 | { "help", no_argument, 0, 'h'}, | |
83d4bf94 | 4225 | { "object", required_argument, 0, OPTION_OBJECT}, |
86ce1f6e | 4226 | { "image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, |
335e9937 | 4227 | { "force-share", no_argument, 0, 'U'}, |
86ce1f6e RS |
4228 | { 0, 0, 0, 0 } |
4229 | }; | |
4230 | ||
335e9937 | 4231 | while ((c = getopt_long(argc, argv, ":hf:O:U", long_options, NULL))) { |
86ce1f6e RS |
4232 | if (c == EOF) { |
4233 | break; | |
4234 | } | |
4235 | switch (c) { | |
4236 | case 'O': | |
4237 | out_fmt = optarg; | |
4238 | break; | |
4239 | case 'f': | |
4240 | fmt = optarg; | |
4241 | break; | |
c9192973 SH |
4242 | case ':': |
4243 | missing_argument(argv[optind - 1]); | |
4244 | break; | |
86ce1f6e | 4245 | case '?': |
c9192973 SH |
4246 | unrecognized_option(argv[optind - 1]); |
4247 | break; | |
86ce1f6e RS |
4248 | case 'h': |
4249 | help(); | |
4250 | break; | |
335e9937 FZ |
4251 | case 'U': |
4252 | force_share = true; | |
4253 | break; | |
2a245709 SH |
4254 | case OPTION_OBJECT: |
4255 | if (!qemu_opts_parse_noisily(&qemu_object_opts, optarg, true)) { | |
83d4bf94 DB |
4256 | ret = -1; |
4257 | goto out; | |
4258 | } | |
2a245709 | 4259 | break; |
86ce1f6e RS |
4260 | case OPTION_IMAGE_OPTS: |
4261 | image_opts = true; | |
4262 | break; | |
4263 | } | |
4264 | } | |
4265 | ||
4266 | for (i = optind; i < argc; i++) { | |
4267 | int j; | |
4268 | arg = g_strdup(argv[i]); | |
4269 | ||
4270 | tmp = strchr(arg, '='); | |
4271 | if (tmp == NULL) { | |
4272 | error_report("unrecognized operand %s", arg); | |
4273 | ret = -1; | |
4274 | goto out; | |
4275 | } | |
4276 | ||
4277 | *tmp++ = '\0'; | |
4278 | ||
4279 | for (j = 0; options[j].name != NULL; j++) { | |
4280 | if (!strcmp(arg, options[j].name)) { | |
4281 | break; | |
4282 | } | |
4283 | } | |
4284 | if (options[j].name == NULL) { | |
4285 | error_report("unrecognized operand %s", arg); | |
4286 | ret = -1; | |
4287 | goto out; | |
4288 | } | |
4289 | ||
4290 | if (options[j].f(tmp, &in, &out, &dd) != 0) { | |
4291 | ret = -1; | |
4292 | goto out; | |
4293 | } | |
4294 | dd.flags |= options[j].flag; | |
4295 | g_free(arg); | |
4296 | arg = NULL; | |
4297 | } | |
4298 | ||
4299 | if (!(dd.flags & C_IF && dd.flags & C_OF)) { | |
4300 | error_report("Must specify both input and output files"); | |
4301 | ret = -1; | |
4302 | goto out; | |
4303 | } | |
83d4bf94 DB |
4304 | |
4305 | if (qemu_opts_foreach(&qemu_object_opts, | |
4306 | user_creatable_add_opts_foreach, | |
4307 | NULL, NULL)) { | |
4308 | ret = -1; | |
4309 | goto out; | |
4310 | } | |
4311 | ||
335e9937 FZ |
4312 | blk1 = img_open(image_opts, in.filename, fmt, 0, false, false, |
4313 | force_share); | |
86ce1f6e RS |
4314 | |
4315 | if (!blk1) { | |
4316 | ret = -1; | |
4317 | goto out; | |
4318 | } | |
4319 | ||
4320 | drv = bdrv_find_format(out_fmt); | |
4321 | if (!drv) { | |
4322 | error_report("Unknown file format"); | |
4323 | ret = -1; | |
4324 | goto out; | |
4325 | } | |
4326 | proto_drv = bdrv_find_protocol(out.filename, true, &local_err); | |
4327 | ||
4328 | if (!proto_drv) { | |
4329 | error_report_err(local_err); | |
4330 | ret = -1; | |
4331 | goto out; | |
4332 | } | |
4333 | if (!drv->create_opts) { | |
4334 | error_report("Format driver '%s' does not support image creation", | |
4335 | drv->format_name); | |
4336 | ret = -1; | |
4337 | goto out; | |
4338 | } | |
4339 | if (!proto_drv->create_opts) { | |
4340 | error_report("Protocol driver '%s' does not support image creation", | |
4341 | proto_drv->format_name); | |
4342 | ret = -1; | |
4343 | goto out; | |
4344 | } | |
4345 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
4346 | create_opts = qemu_opts_append(create_opts, proto_drv->create_opts); | |
4347 | ||
4348 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
4349 | ||
4350 | size = blk_getlength(blk1); | |
4351 | if (size < 0) { | |
4352 | error_report("Failed to get size for '%s'", in.filename); | |
4353 | ret = -1; | |
4354 | goto out; | |
4355 | } | |
4356 | ||
4357 | if (dd.flags & C_COUNT && dd.count <= INT64_MAX / in.bsz && | |
4358 | dd.count * in.bsz < size) { | |
4359 | size = dd.count * in.bsz; | |
4360 | } | |
4361 | ||
f7c15533 RS |
4362 | /* Overflow means the specified offset is beyond input image's size */ |
4363 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || | |
4364 | size < in.bsz * in.offset)) { | |
4365 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, 0, &error_abort); | |
4366 | } else { | |
4367 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, | |
4368 | size - in.bsz * in.offset, &error_abort); | |
4369 | } | |
86ce1f6e RS |
4370 | |
4371 | ret = bdrv_create(drv, out.filename, opts, &local_err); | |
4372 | if (ret < 0) { | |
4373 | error_reportf_err(local_err, | |
4374 | "%s: error while creating output image: ", | |
4375 | out.filename); | |
4376 | ret = -1; | |
4377 | goto out; | |
4378 | } | |
4379 | ||
ea204dda DB |
4380 | /* TODO, we can't honour --image-opts for the target, |
4381 | * since it needs to be given in a format compatible | |
4382 | * with the bdrv_create() call above which does not | |
4383 | * support image-opts style. | |
4384 | */ | |
29cf9336 | 4385 | blk2 = img_open_file(out.filename, NULL, out_fmt, BDRV_O_RDWR, |
ea204dda | 4386 | false, false, false); |
86ce1f6e RS |
4387 | |
4388 | if (!blk2) { | |
4389 | ret = -1; | |
4390 | goto out; | |
4391 | } | |
4392 | ||
f7c15533 RS |
4393 | if (dd.flags & C_SKIP && (in.offset > INT64_MAX / in.bsz || |
4394 | size < in.offset * in.bsz)) { | |
4395 | /* We give a warning if the skip option is bigger than the input | |
4396 | * size and create an empty output disk image (i.e. like dd(1)). | |
4397 | */ | |
4398 | error_report("%s: cannot skip to specified offset", in.filename); | |
4399 | in_pos = size; | |
4400 | } else { | |
4401 | in_pos = in.offset * in.bsz; | |
4402 | } | |
4403 | ||
86ce1f6e RS |
4404 | in.buf = g_new(uint8_t, in.bsz); |
4405 | ||
f7c15533 | 4406 | for (out_pos = 0; in_pos < size; block_count++) { |
86ce1f6e RS |
4407 | int in_ret, out_ret; |
4408 | ||
4409 | if (in_pos + in.bsz > size) { | |
4410 | in_ret = blk_pread(blk1, in_pos, in.buf, size - in_pos); | |
4411 | } else { | |
4412 | in_ret = blk_pread(blk1, in_pos, in.buf, in.bsz); | |
4413 | } | |
4414 | if (in_ret < 0) { | |
4415 | error_report("error while reading from input image file: %s", | |
4416 | strerror(-in_ret)); | |
4417 | ret = -1; | |
4418 | goto out; | |
4419 | } | |
4420 | in_pos += in_ret; | |
4421 | ||
4422 | out_ret = blk_pwrite(blk2, out_pos, in.buf, in_ret, 0); | |
4423 | ||
4424 | if (out_ret < 0) { | |
4425 | error_report("error while writing to output image file: %s", | |
4426 | strerror(-out_ret)); | |
4427 | ret = -1; | |
4428 | goto out; | |
4429 | } | |
4430 | out_pos += out_ret; | |
4431 | } | |
4432 | ||
4433 | out: | |
4434 | g_free(arg); | |
4435 | qemu_opts_del(opts); | |
4436 | qemu_opts_free(create_opts); | |
4437 | blk_unref(blk1); | |
4438 | blk_unref(blk2); | |
4439 | g_free(in.filename); | |
4440 | g_free(out.filename); | |
4441 | g_free(in.buf); | |
4442 | g_free(out.buf); | |
4443 | ||
4444 | if (ret) { | |
b6133b8c KW |
4445 | return 1; |
4446 | } | |
4447 | return 0; | |
4448 | } | |
4449 | ||
fd03c2b8 SH |
4450 | static void dump_json_block_measure_info(BlockMeasureInfo *info) |
4451 | { | |
4452 | QString *str; | |
4453 | QObject *obj; | |
4454 | Visitor *v = qobject_output_visitor_new(&obj); | |
4455 | ||
4456 | visit_type_BlockMeasureInfo(v, NULL, &info, &error_abort); | |
4457 | visit_complete(v, &obj); | |
4458 | str = qobject_to_json_pretty(obj); | |
4459 | assert(str != NULL); | |
4460 | printf("%s\n", qstring_get_str(str)); | |
4461 | qobject_decref(obj); | |
4462 | visit_free(v); | |
4463 | QDECREF(str); | |
4464 | } | |
4465 | ||
4466 | static int img_measure(int argc, char **argv) | |
4467 | { | |
4468 | static const struct option long_options[] = { | |
4469 | {"help", no_argument, 0, 'h'}, | |
4470 | {"image-opts", no_argument, 0, OPTION_IMAGE_OPTS}, | |
4471 | {"object", required_argument, 0, OPTION_OBJECT}, | |
4472 | {"output", required_argument, 0, OPTION_OUTPUT}, | |
4473 | {"size", required_argument, 0, OPTION_SIZE}, | |
4474 | {"force-share", no_argument, 0, 'U'}, | |
4475 | {0, 0, 0, 0} | |
4476 | }; | |
4477 | OutputFormat output_format = OFORMAT_HUMAN; | |
4478 | BlockBackend *in_blk = NULL; | |
4479 | BlockDriver *drv; | |
4480 | const char *filename = NULL; | |
4481 | const char *fmt = NULL; | |
4482 | const char *out_fmt = "raw"; | |
4483 | char *options = NULL; | |
4484 | char *snapshot_name = NULL; | |
4485 | bool force_share = false; | |
4486 | QemuOpts *opts = NULL; | |
4487 | QemuOpts *object_opts = NULL; | |
4488 | QemuOpts *sn_opts = NULL; | |
4489 | QemuOptsList *create_opts = NULL; | |
4490 | bool image_opts = false; | |
4491 | uint64_t img_size = UINT64_MAX; | |
4492 | BlockMeasureInfo *info = NULL; | |
4493 | Error *local_err = NULL; | |
4494 | int ret = 1; | |
4495 | int c; | |
4496 | ||
4497 | while ((c = getopt_long(argc, argv, "hf:O:o:l:U", | |
4498 | long_options, NULL)) != -1) { | |
4499 | switch (c) { | |
4500 | case '?': | |
4501 | case 'h': | |
4502 | help(); | |
4503 | break; | |
4504 | case 'f': | |
4505 | fmt = optarg; | |
4506 | break; | |
4507 | case 'O': | |
4508 | out_fmt = optarg; | |
4509 | break; | |
4510 | case 'o': | |
4511 | if (!is_valid_option_list(optarg)) { | |
4512 | error_report("Invalid option list: %s", optarg); | |
4513 | goto out; | |
4514 | } | |
4515 | if (!options) { | |
4516 | options = g_strdup(optarg); | |
4517 | } else { | |
4518 | char *old_options = options; | |
4519 | options = g_strdup_printf("%s,%s", options, optarg); | |
4520 | g_free(old_options); | |
4521 | } | |
4522 | break; | |
4523 | case 'l': | |
4524 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { | |
4525 | sn_opts = qemu_opts_parse_noisily(&internal_snapshot_opts, | |
4526 | optarg, false); | |
4527 | if (!sn_opts) { | |
4528 | error_report("Failed in parsing snapshot param '%s'", | |
4529 | optarg); | |
4530 | goto out; | |
4531 | } | |
4532 | } else { | |
4533 | snapshot_name = optarg; | |
4534 | } | |
4535 | break; | |
4536 | case 'U': | |
4537 | force_share = true; | |
4538 | break; | |
4539 | case OPTION_OBJECT: | |
4540 | object_opts = qemu_opts_parse_noisily(&qemu_object_opts, | |
4541 | optarg, true); | |
4542 | if (!object_opts) { | |
4543 | goto out; | |
4544 | } | |
4545 | break; | |
4546 | case OPTION_IMAGE_OPTS: | |
4547 | image_opts = true; | |
4548 | break; | |
4549 | case OPTION_OUTPUT: | |
4550 | if (!strcmp(optarg, "json")) { | |
4551 | output_format = OFORMAT_JSON; | |
4552 | } else if (!strcmp(optarg, "human")) { | |
4553 | output_format = OFORMAT_HUMAN; | |
4554 | } else { | |
4555 | error_report("--output must be used with human or json " | |
4556 | "as argument."); | |
4557 | goto out; | |
4558 | } | |
4559 | break; | |
4560 | case OPTION_SIZE: | |
4561 | { | |
4562 | int64_t sval; | |
4563 | ||
4564 | sval = cvtnum(optarg); | |
4565 | if (sval < 0) { | |
4566 | if (sval == -ERANGE) { | |
4567 | error_report("Image size must be less than 8 EiB!"); | |
4568 | } else { | |
4569 | error_report("Invalid image size specified! You may use " | |
4570 | "k, M, G, T, P or E suffixes for "); | |
4571 | error_report("kilobytes, megabytes, gigabytes, terabytes, " | |
4572 | "petabytes and exabytes."); | |
4573 | } | |
4574 | goto out; | |
4575 | } | |
4576 | img_size = (uint64_t)sval; | |
4577 | } | |
4578 | break; | |
4579 | } | |
4580 | } | |
4581 | ||
4582 | if (qemu_opts_foreach(&qemu_object_opts, | |
4583 | user_creatable_add_opts_foreach, | |
4584 | NULL, NULL)) { | |
4585 | goto out; | |
4586 | } | |
4587 | ||
4588 | if (argc - optind > 1) { | |
4589 | error_report("At most one filename argument is allowed."); | |
4590 | goto out; | |
4591 | } else if (argc - optind == 1) { | |
4592 | filename = argv[optind]; | |
4593 | } | |
4594 | ||
4595 | if (!filename && | |
4596 | (object_opts || image_opts || fmt || snapshot_name || sn_opts)) { | |
4597 | error_report("--object, --image-opts, -f, and -l " | |
4598 | "require a filename argument."); | |
4599 | goto out; | |
4600 | } | |
4601 | if (filename && img_size != UINT64_MAX) { | |
4602 | error_report("--size N cannot be used together with a filename."); | |
4603 | goto out; | |
4604 | } | |
4605 | if (!filename && img_size == UINT64_MAX) { | |
4606 | error_report("Either --size N or one filename must be specified."); | |
4607 | goto out; | |
4608 | } | |
4609 | ||
4610 | if (filename) { | |
4611 | in_blk = img_open(image_opts, filename, fmt, 0, | |
4612 | false, false, force_share); | |
4613 | if (!in_blk) { | |
4614 | goto out; | |
4615 | } | |
4616 | ||
4617 | if (sn_opts) { | |
4618 | bdrv_snapshot_load_tmp(blk_bs(in_blk), | |
4619 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), | |
4620 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), | |
4621 | &local_err); | |
4622 | } else if (snapshot_name != NULL) { | |
4623 | bdrv_snapshot_load_tmp_by_id_or_name(blk_bs(in_blk), | |
4624 | snapshot_name, &local_err); | |
4625 | } | |
4626 | if (local_err) { | |
4627 | error_reportf_err(local_err, "Failed to load snapshot: "); | |
4628 | goto out; | |
4629 | } | |
4630 | } | |
4631 | ||
4632 | drv = bdrv_find_format(out_fmt); | |
4633 | if (!drv) { | |
4634 | error_report("Unknown file format '%s'", out_fmt); | |
4635 | goto out; | |
4636 | } | |
4637 | if (!drv->create_opts) { | |
4638 | error_report("Format driver '%s' does not support image creation", | |
4639 | drv->format_name); | |
4640 | goto out; | |
4641 | } | |
4642 | ||
4643 | create_opts = qemu_opts_append(create_opts, drv->create_opts); | |
4644 | create_opts = qemu_opts_append(create_opts, bdrv_file.create_opts); | |
4645 | opts = qemu_opts_create(create_opts, NULL, 0, &error_abort); | |
4646 | if (options) { | |
4647 | qemu_opts_do_parse(opts, options, NULL, &local_err); | |
4648 | if (local_err) { | |
4649 | error_report_err(local_err); | |
4650 | error_report("Invalid options for file format '%s'", out_fmt); | |
4651 | goto out; | |
4652 | } | |
4653 | } | |
4654 | if (img_size != UINT64_MAX) { | |
4655 | qemu_opt_set_number(opts, BLOCK_OPT_SIZE, img_size, &error_abort); | |
4656 | } | |
4657 | ||
4658 | info = bdrv_measure(drv, opts, in_blk ? blk_bs(in_blk) : NULL, &local_err); | |
4659 | if (local_err) { | |
4660 | error_report_err(local_err); | |
4661 | goto out; | |
4662 | } | |
4663 | ||
4664 | if (output_format == OFORMAT_HUMAN) { | |
4665 | printf("required size: %" PRIu64 "\n", info->required); | |
4666 | printf("fully allocated size: %" PRIu64 "\n", info->fully_allocated); | |
4667 | } else { | |
4668 | dump_json_block_measure_info(info); | |
4669 | } | |
4670 | ||
4671 | ret = 0; | |
4672 | ||
4673 | out: | |
4674 | qapi_free_BlockMeasureInfo(info); | |
4675 | qemu_opts_del(object_opts); | |
4676 | qemu_opts_del(opts); | |
4677 | qemu_opts_del(sn_opts); | |
4678 | qemu_opts_free(create_opts); | |
4679 | g_free(options); | |
4680 | blk_unref(in_blk); | |
4681 | return ret; | |
4682 | } | |
b6133b8c | 4683 | |
c227f099 | 4684 | static const img_cmd_t img_cmds[] = { |
153859be SB |
4685 | #define DEF(option, callback, arg_string) \ |
4686 | { option, callback }, | |
4687 | #include "qemu-img-cmds.h" | |
4688 | #undef DEF | |
4689 | #undef GEN_DOCS | |
4690 | { NULL, NULL, }, | |
4691 | }; | |
4692 | ||
ea2384d3 FB |
4693 | int main(int argc, char **argv) |
4694 | { | |
c227f099 | 4695 | const img_cmd_t *cmd; |
153859be | 4696 | const char *cmdname; |
2f78e491 | 4697 | Error *local_error = NULL; |
06a1e0c1 | 4698 | char *trace_file = NULL; |
7db1689c | 4699 | int c; |
7db1689c JC |
4700 | static const struct option long_options[] = { |
4701 | {"help", no_argument, 0, 'h'}, | |
10985131 | 4702 | {"version", no_argument, 0, 'V'}, |
06a1e0c1 | 4703 | {"trace", required_argument, NULL, 'T'}, |
7db1689c JC |
4704 | {0, 0, 0, 0} |
4705 | }; | |
ea2384d3 | 4706 | |
526eda14 MK |
4707 | #ifdef CONFIG_POSIX |
4708 | signal(SIGPIPE, SIG_IGN); | |
4709 | #endif | |
4710 | ||
fe4db84d | 4711 | module_call_init(MODULE_INIT_TRACE); |
53f76e58 | 4712 | error_set_progname(argv[0]); |
10f5bff6 | 4713 | qemu_init_exec_dir(argv[0]); |
53f76e58 | 4714 | |
2f78e491 | 4715 | if (qemu_init_main_loop(&local_error)) { |
565f65d2 | 4716 | error_report_err(local_error); |
2f78e491 CN |
4717 | exit(EXIT_FAILURE); |
4718 | } | |
4719 | ||
e8f2d272 | 4720 | qcrypto_init(&error_fatal); |
c2297088 | 4721 | |
064097d9 | 4722 | module_call_init(MODULE_INIT_QOM); |
ea2384d3 | 4723 | bdrv_init(); |
ac1307ab FZ |
4724 | if (argc < 2) { |
4725 | error_exit("Not enough arguments"); | |
4726 | } | |
153859be | 4727 | |
3babeb15 | 4728 | qemu_add_opts(&qemu_object_opts); |
eb769f74 | 4729 | qemu_add_opts(&qemu_source_opts); |
06a1e0c1 | 4730 | qemu_add_opts(&qemu_trace_opts); |
3babeb15 | 4731 | |
c9192973 | 4732 | while ((c = getopt_long(argc, argv, "+:hVT:", long_options, NULL)) != -1) { |
10985131 | 4733 | switch (c) { |
c9192973 SH |
4734 | case ':': |
4735 | missing_argument(argv[optind - 1]); | |
4736 | return 0; | |
4581c16f | 4737 | case '?': |
c9192973 SH |
4738 | unrecognized_option(argv[optind - 1]); |
4739 | return 0; | |
4740 | case 'h': | |
10985131 DL |
4741 | help(); |
4742 | return 0; | |
4743 | case 'V': | |
4744 | printf(QEMU_IMG_VERSION); | |
4745 | return 0; | |
06a1e0c1 DL |
4746 | case 'T': |
4747 | g_free(trace_file); | |
4748 | trace_file = trace_opt_parse(optarg); | |
4749 | break; | |
153859be | 4750 | } |
ea2384d3 | 4751 | } |
153859be | 4752 | |
10985131 | 4753 | cmdname = argv[optind]; |
7db1689c | 4754 | |
10985131 DL |
4755 | /* reset getopt_long scanning */ |
4756 | argc -= optind; | |
4757 | if (argc < 1) { | |
5f6979cb JC |
4758 | return 0; |
4759 | } | |
10985131 | 4760 | argv += optind; |
cfef6a45 | 4761 | optind = 0; |
10985131 | 4762 | |
06a1e0c1 DL |
4763 | if (!trace_init_backends()) { |
4764 | exit(1); | |
4765 | } | |
4766 | trace_init_file(trace_file); | |
4767 | qemu_set_log(LOG_TRACE); | |
4768 | ||
10985131 DL |
4769 | /* find the command */ |
4770 | for (cmd = img_cmds; cmd->name != NULL; cmd++) { | |
4771 | if (!strcmp(cmdname, cmd->name)) { | |
4772 | return cmd->handler(argc, argv); | |
4773 | } | |
4774 | } | |
7db1689c | 4775 | |
153859be | 4776 | /* not found */ |
ac1307ab | 4777 | error_exit("Command not found: %s", cmdname); |
ea2384d3 | 4778 | } |