bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1 | /* |
bellard | fb43f4d | 2006-08-07 21:34:46 +0000 | [diff] [blame] | 2 | * QEMU disk image utility |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 3 | * |
bellard | 68d0f70 | 2008-01-06 17:21:48 +0000 | [diff] [blame] | 4 | * Copyright (c) 2003-2008 Fabrice Bellard |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 5 | * |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 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 | */ |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 24 | #include "qapi-visit.h" |
| 25 | #include "qapi/qmp-output-visitor.h" |
Paolo Bonzini | 7b1b5d1 | 2012-12-17 18:19:43 +0100 | [diff] [blame] | 26 | #include "qapi/qmp/qjson.h" |
pbrook | faf0796 | 2007-11-11 02:51:17 +0000 | [diff] [blame] | 27 | #include "qemu-common.h" |
Paolo Bonzini | 1de7afc | 2012-12-17 18:20:00 +0100 | [diff] [blame] | 28 | #include "qemu/option.h" |
| 29 | #include "qemu/error-report.h" |
| 30 | #include "qemu/osdep.h" |
Paolo Bonzini | 9c17d61 | 2012-12-17 18:20:04 +0100 | [diff] [blame] | 31 | #include "sysemu/sysemu.h" |
Paolo Bonzini | 737e150 | 2012-12-17 18:19:44 +0100 | [diff] [blame] | 32 | #include "block/block_int.h" |
Wenchao Xia | f364ec6 | 2013-05-25 11:09:44 +0800 | [diff] [blame] | 33 | #include "block/qapi.h" |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 34 | #include <getopt.h> |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 35 | #include <stdio.h> |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 36 | #include <stdarg.h> |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 37 | |
bellard | e844533 | 2006-06-14 15:32:10 +0000 | [diff] [blame] | 38 | #ifdef _WIN32 |
| 39 | #include <windows.h> |
| 40 | #endif |
| 41 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 42 | typedef struct img_cmd_t { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 43 | const char *name; |
| 44 | int (*handler)(int argc, char **argv); |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 45 | } img_cmd_t; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 46 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 47 | enum { |
| 48 | OPTION_OUTPUT = 256, |
| 49 | OPTION_BACKING_CHAIN = 257, |
| 50 | }; |
| 51 | |
| 52 | typedef enum OutputFormat { |
| 53 | OFORMAT_JSON, |
| 54 | OFORMAT_HUMAN, |
| 55 | } OutputFormat; |
| 56 | |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 57 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */ |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 58 | #define BDRV_O_FLAGS BDRV_O_CACHE_WB |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 59 | #define BDRV_DEFAULT_CACHE "writeback" |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 60 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 61 | static void format_print(void *opaque, const char *name) |
| 62 | { |
| 63 | printf(" %s", name); |
| 64 | } |
| 65 | |
blueswir1 | d2c639d | 2009-01-24 18:19:25 +0000 | [diff] [blame] | 66 | /* Please keep in synch with qemu-img.texi */ |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 67 | static void help(void) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 68 | { |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 69 | const char *help_msg = |
| 70 | "qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 71 | "usage: qemu-img command [command options]\n" |
| 72 | "QEMU disk image utility\n" |
| 73 | "\n" |
| 74 | "Command syntax:\n" |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 75 | #define DEF(option, callback, arg_string) \ |
| 76 | " " arg_string "\n" |
| 77 | #include "qemu-img-cmds.h" |
| 78 | #undef DEF |
| 79 | #undef GEN_DOCS |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 80 | "\n" |
| 81 | "Command parameters:\n" |
| 82 | " 'filename' is a disk image filename\n" |
| 83 | " 'fmt' is the disk image format. It is guessed automatically in most cases\n" |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 84 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
Liu Yuan | 80ccf93 | 2012-04-20 17:10:56 +0800 | [diff] [blame] | 85 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
| 86 | " 'directsync' and 'unsafe' (default for convert)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 87 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
Kevin Wolf | 5e00984 | 2013-06-05 14:19:27 +0200 | [diff] [blame] | 88 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M),\n" |
| 89 | " 'T' (terabyte, 1024G), 'P' (petabyte, 1024T) and 'E' (exabyte, 1024P) are\n" |
| 90 | " supported. 'b' is ignored.\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 91 | " 'output_filename' is the destination disk image filename\n" |
| 92 | " 'output_fmt' is the destination format\n" |
| 93 | " 'options' is a comma separated list of format specific options in a\n" |
| 94 | " name=value format. Use -o ? for an overview of the options supported by the\n" |
| 95 | " used format\n" |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 96 | " 'snapshot_param' is param used for internal snapshot, format\n" |
| 97 | " is 'snapshot.id=[ID],snapshot.name=[NAME]', or\n" |
| 98 | " '[ID_OR_NAME]'\n" |
| 99 | " 'snapshot_id_or_name' is deprecated, use 'snapshot_param'\n" |
| 100 | " instead\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 101 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
| 102 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" |
| 103 | " match exactly. The image doesn't need a working backing file before\n" |
| 104 | " rebasing in this case (useful for renaming the backing file)\n" |
| 105 | " '-h' with or without a command shows this help and lists the supported formats\n" |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 106 | " '-p' show progress of command (only certain commands)\n" |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 107 | " '-q' use Quiet mode - do not print any output (except errors)\n" |
Peter Lieven | 11b6699 | 2013-10-24 12:07:05 +0200 | [diff] [blame] | 108 | " '-S' indicates the consecutive number of bytes (defaults to 4k) that must\n" |
| 109 | " contain only zeros for qemu-img to create a sparse image during\n" |
| 110 | " conversion. If the number of bytes is 0, the source will not be scanned for\n" |
| 111 | " unallocated or zero sectors, and the destination image will always be\n" |
| 112 | " fully allocated\n" |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 113 | " '--output' takes the format in which the output must be done (human or json)\n" |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 114 | " '-n' skips the target volume creation (useful if the volume is created\n" |
| 115 | " prior to running qemu-img)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 116 | "\n" |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 117 | "Parameters to check subcommand:\n" |
| 118 | " '-r' tries to repair any inconsistencies that are found during the check.\n" |
| 119 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" |
| 120 | " kinds of errors, with a higher risk of choosing the wrong fix or\n" |
Stefan Weil | 0546b8c | 2012-08-10 22:03:25 +0200 | [diff] [blame] | 121 | " hiding corruption that has already occurred.\n" |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 122 | "\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 123 | "Parameters to snapshot subcommand:\n" |
| 124 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" |
| 125 | " '-a' applies a snapshot (revert disk to saved state)\n" |
| 126 | " '-c' creates a snapshot\n" |
| 127 | " '-d' deletes a snapshot\n" |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 128 | " '-l' lists all snapshots in the given image\n" |
| 129 | "\n" |
| 130 | "Parameters to compare subcommand:\n" |
| 131 | " '-f' first image format\n" |
| 132 | " '-F' second image format\n" |
| 133 | " '-s' run in Strict mode - fail on different image size or sector allocation\n"; |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 134 | |
| 135 | printf("%s\nSupported formats:", help_msg); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 136 | bdrv_iterate_format(format_print, NULL); |
| 137 | printf("\n"); |
| 138 | exit(1); |
| 139 | } |
| 140 | |
Stefan Weil | 7c30f65 | 2013-06-16 17:01:05 +0200 | [diff] [blame] | 141 | static int GCC_FMT_ATTR(2, 3) qprintf(bool quiet, const char *fmt, ...) |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 142 | { |
| 143 | int ret = 0; |
| 144 | if (!quiet) { |
| 145 | va_list args; |
| 146 | va_start(args, fmt); |
| 147 | ret = vprintf(fmt, args); |
| 148 | va_end(args); |
| 149 | } |
| 150 | return ret; |
| 151 | } |
| 152 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 153 | #if defined(WIN32) |
| 154 | /* XXX: put correct support for win32 */ |
| 155 | static int read_password(char *buf, int buf_size) |
| 156 | { |
| 157 | int c, i; |
| 158 | printf("Password: "); |
| 159 | fflush(stdout); |
| 160 | i = 0; |
| 161 | for(;;) { |
| 162 | c = getchar(); |
| 163 | if (c == '\n') |
| 164 | break; |
| 165 | if (i < (buf_size - 1)) |
| 166 | buf[i++] = c; |
| 167 | } |
| 168 | buf[i] = '\0'; |
| 169 | return 0; |
| 170 | } |
| 171 | |
| 172 | #else |
| 173 | |
| 174 | #include <termios.h> |
| 175 | |
| 176 | static struct termios oldtty; |
| 177 | |
| 178 | static void term_exit(void) |
| 179 | { |
| 180 | tcsetattr (0, TCSANOW, &oldtty); |
| 181 | } |
| 182 | |
| 183 | static void term_init(void) |
| 184 | { |
| 185 | struct termios tty; |
| 186 | |
| 187 | tcgetattr (0, &tty); |
| 188 | oldtty = tty; |
| 189 | |
| 190 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 191 | |INLCR|IGNCR|ICRNL|IXON); |
| 192 | tty.c_oflag |= OPOST; |
| 193 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 194 | tty.c_cflag &= ~(CSIZE|PARENB); |
| 195 | tty.c_cflag |= CS8; |
| 196 | tty.c_cc[VMIN] = 1; |
| 197 | tty.c_cc[VTIME] = 0; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 198 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 199 | tcsetattr (0, TCSANOW, &tty); |
| 200 | |
| 201 | atexit(term_exit); |
| 202 | } |
| 203 | |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 204 | static int read_password(char *buf, int buf_size) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 205 | { |
| 206 | uint8_t ch; |
| 207 | int i, ret; |
| 208 | |
| 209 | printf("password: "); |
| 210 | fflush(stdout); |
| 211 | term_init(); |
| 212 | i = 0; |
| 213 | for(;;) { |
| 214 | ret = read(0, &ch, 1); |
| 215 | if (ret == -1) { |
| 216 | if (errno == EAGAIN || errno == EINTR) { |
| 217 | continue; |
| 218 | } else { |
| 219 | ret = -1; |
| 220 | break; |
| 221 | } |
| 222 | } else if (ret == 0) { |
| 223 | ret = -1; |
| 224 | break; |
| 225 | } else { |
| 226 | if (ch == '\r') { |
| 227 | ret = 0; |
| 228 | break; |
| 229 | } |
| 230 | if (i < (buf_size - 1)) |
| 231 | buf[i++] = ch; |
| 232 | } |
| 233 | } |
| 234 | term_exit(); |
| 235 | buf[i] = '\0'; |
| 236 | printf("\n"); |
| 237 | return ret; |
| 238 | } |
| 239 | #endif |
| 240 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 241 | static int print_block_option_help(const char *filename, const char *fmt) |
| 242 | { |
| 243 | BlockDriver *drv, *proto_drv; |
| 244 | QEMUOptionParameter *create_options = NULL; |
| 245 | |
| 246 | /* Find driver and parse its options */ |
| 247 | drv = bdrv_find_format(fmt); |
| 248 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 249 | error_report("Unknown file format '%s'", fmt); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 250 | return 1; |
| 251 | } |
| 252 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 253 | create_options = append_option_parameters(create_options, |
| 254 | drv->create_options); |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 255 | |
| 256 | if (filename) { |
| 257 | proto_drv = bdrv_find_protocol(filename, true); |
| 258 | if (!proto_drv) { |
| 259 | error_report("Unknown protocol '%s'", filename); |
| 260 | return 1; |
| 261 | } |
| 262 | create_options = append_option_parameters(create_options, |
| 263 | proto_drv->create_options); |
| 264 | } |
| 265 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 266 | print_option_help(create_options); |
| 267 | free_option_parameters(create_options); |
| 268 | return 0; |
| 269 | } |
| 270 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 271 | static BlockDriverState *bdrv_new_open(const char *filename, |
Sheng Yang | 9bc378c | 2010-01-29 10:15:06 +0800 | [diff] [blame] | 272 | const char *fmt, |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 273 | int flags, |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 274 | bool require_io, |
| 275 | bool quiet) |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 276 | { |
| 277 | BlockDriverState *bs; |
| 278 | BlockDriver *drv; |
| 279 | char password[256]; |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 280 | Error *local_err = NULL; |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 281 | int ret; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 282 | |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 283 | bs = bdrv_new("image"); |
Kevin Wolf | ad71713 | 2010-12-16 15:37:41 +0100 | [diff] [blame] | 284 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 285 | if (fmt) { |
| 286 | drv = bdrv_find_format(fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 287 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 288 | error_report("Unknown file format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 289 | goto fail; |
| 290 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 291 | } else { |
| 292 | drv = NULL; |
| 293 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 294 | |
Max Reitz | ddf5636 | 2014-02-18 18:33:06 +0100 | [diff] [blame] | 295 | ret = bdrv_open(&bs, filename, NULL, NULL, flags, drv, &local_err); |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 296 | if (ret < 0) { |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 297 | error_report("Could not open '%s': %s", filename, |
| 298 | error_get_pretty(local_err)); |
| 299 | error_free(local_err); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 300 | goto fail; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 301 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 302 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 303 | if (bdrv_is_encrypted(bs) && require_io) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 304 | qprintf(quiet, "Disk image '%s' is encrypted.\n", filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 305 | if (read_password(password, sizeof(password)) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 306 | error_report("No password given"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 307 | goto fail; |
| 308 | } |
| 309 | if (bdrv_set_key(bs, password) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 310 | error_report("invalid password"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 311 | goto fail; |
| 312 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 313 | } |
| 314 | return bs; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 315 | fail: |
Max Reitz | f67503e | 2014-02-18 18:33:05 +0100 | [diff] [blame] | 316 | bdrv_unref(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 317 | return NULL; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 318 | } |
| 319 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 320 | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 321 | const char *base_filename, |
| 322 | const char *base_fmt) |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 323 | { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 324 | if (base_filename) { |
| 325 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 326 | error_report("Backing file not supported for file format '%s'", |
| 327 | fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 328 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 329 | } |
| 330 | } |
| 331 | if (base_fmt) { |
| 332 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 333 | error_report("Backing file format not supported for file " |
| 334 | "format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 335 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 336 | } |
| 337 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 338 | return 0; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 339 | } |
| 340 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 341 | static int img_create(int argc, char **argv) |
| 342 | { |
Luiz Capitulino | a930091 | 2012-11-30 10:52:06 -0200 | [diff] [blame] | 343 | int c; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 344 | uint64_t img_size = -1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 345 | const char *fmt = "raw"; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 346 | const char *base_fmt = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 347 | const char *filename; |
| 348 | const char *base_filename = NULL; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 349 | char *options = NULL; |
Luiz Capitulino | 9b37525 | 2012-11-30 10:52:05 -0200 | [diff] [blame] | 350 | Error *local_err = NULL; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 351 | bool quiet = false; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 352 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 353 | for(;;) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 354 | c = getopt(argc, argv, "F:b:f:he6o:q"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 355 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 356 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 357 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 358 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 359 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 360 | case 'h': |
| 361 | help(); |
| 362 | break; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 363 | case 'F': |
| 364 | base_fmt = optarg; |
| 365 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 366 | case 'b': |
| 367 | base_filename = optarg; |
| 368 | break; |
| 369 | case 'f': |
| 370 | fmt = optarg; |
| 371 | break; |
| 372 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 373 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 374 | "encryption\' instead!"); |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 375 | goto fail; |
ths | d8871c5 | 2007-10-24 16:11:42 +0000 | [diff] [blame] | 376 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 377 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 378 | "compat6\' instead!"); |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 379 | goto fail; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 380 | case 'o': |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 381 | if (!is_valid_option_list(optarg)) { |
| 382 | error_report("Invalid option list: %s", optarg); |
| 383 | goto fail; |
| 384 | } |
| 385 | if (!options) { |
| 386 | options = g_strdup(optarg); |
| 387 | } else { |
| 388 | char *old_options = options; |
| 389 | options = g_strdup_printf("%s,%s", options, optarg); |
| 390 | g_free(old_options); |
| 391 | } |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 392 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 393 | case 'q': |
| 394 | quiet = true; |
| 395 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 396 | } |
| 397 | } |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 398 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 399 | /* Get the filename */ |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 400 | filename = (optind < argc) ? argv[optind] : NULL; |
| 401 | if (options && has_help_option(options)) { |
| 402 | g_free(options); |
| 403 | return print_block_option_help(filename, fmt); |
| 404 | } |
| 405 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 406 | if (optind >= argc) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 407 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 408 | } |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 409 | optind++; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 410 | |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 411 | /* Get image size, if specified */ |
| 412 | if (optind < argc) { |
Jes Sorensen | 70b4f4b | 2011-01-05 11:41:02 +0100 | [diff] [blame] | 413 | int64_t sval; |
Markus Armbruster | e36b369 | 2011-11-22 09:46:05 +0100 | [diff] [blame] | 414 | char *end; |
| 415 | sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B); |
| 416 | if (sval < 0 || *end) { |
liguang | 7944339 | 2012-12-17 09:49:23 +0800 | [diff] [blame] | 417 | if (sval == -ERANGE) { |
| 418 | error_report("Image size must be less than 8 EiB!"); |
| 419 | } else { |
| 420 | error_report("Invalid image size specified! You may use k, M, " |
Kevin Wolf | 5e00984 | 2013-06-05 14:19:27 +0200 | [diff] [blame] | 421 | "G, T, P or E suffixes for "); |
| 422 | error_report("kilobytes, megabytes, gigabytes, terabytes, " |
| 423 | "petabytes and exabytes."); |
liguang | 7944339 | 2012-12-17 09:49:23 +0800 | [diff] [blame] | 424 | } |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 425 | goto fail; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 426 | } |
| 427 | img_size = (uint64_t)sval; |
| 428 | } |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 429 | if (optind != argc) { |
| 430 | help(); |
| 431 | } |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 432 | |
Luiz Capitulino | 9b37525 | 2012-11-30 10:52:05 -0200 | [diff] [blame] | 433 | bdrv_img_create(filename, fmt, base_filename, base_fmt, |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 434 | options, img_size, BDRV_O_FLAGS, &local_err, quiet); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 435 | if (local_err) { |
Max Reitz | b70d8c2 | 2013-09-06 16:51:03 +0200 | [diff] [blame] | 436 | error_report("%s: %s", filename, error_get_pretty(local_err)); |
Luiz Capitulino | 9b37525 | 2012-11-30 10:52:05 -0200 | [diff] [blame] | 437 | error_free(local_err); |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 438 | goto fail; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 439 | } |
Luiz Capitulino | a930091 | 2012-11-30 10:52:06 -0200 | [diff] [blame] | 440 | |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 441 | g_free(options); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 442 | return 0; |
Kevin Wolf | 77386bf | 2014-02-21 16:24:04 +0100 | [diff] [blame] | 443 | |
| 444 | fail: |
| 445 | g_free(options); |
| 446 | return 1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 447 | } |
| 448 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 449 | static void dump_json_image_check(ImageCheck *check, bool quiet) |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 450 | { |
| 451 | Error *errp = NULL; |
| 452 | QString *str; |
| 453 | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
| 454 | QObject *obj; |
| 455 | visit_type_ImageCheck(qmp_output_get_visitor(ov), |
| 456 | &check, NULL, &errp); |
| 457 | obj = qmp_output_get_qobject(ov); |
| 458 | str = qobject_to_json_pretty(obj); |
| 459 | assert(str != NULL); |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 460 | qprintf(quiet, "%s\n", qstring_get_str(str)); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 461 | qobject_decref(obj); |
| 462 | qmp_output_visitor_cleanup(ov); |
| 463 | QDECREF(str); |
| 464 | } |
| 465 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 466 | static void dump_human_image_check(ImageCheck *check, bool quiet) |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 467 | { |
| 468 | if (!(check->corruptions || check->leaks || check->check_errors)) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 469 | qprintf(quiet, "No errors were found on the image.\n"); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 470 | } else { |
| 471 | if (check->corruptions) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 472 | qprintf(quiet, "\n%" PRId64 " errors were found on the image.\n" |
| 473 | "Data may be corrupted, or further writes to the image " |
| 474 | "may corrupt it.\n", |
| 475 | check->corruptions); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 476 | } |
| 477 | |
| 478 | if (check->leaks) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 479 | qprintf(quiet, |
| 480 | "\n%" PRId64 " leaked clusters were found on the image.\n" |
| 481 | "This means waste of disk space, but no harm to data.\n", |
| 482 | check->leaks); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 483 | } |
| 484 | |
| 485 | if (check->check_errors) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 486 | qprintf(quiet, |
| 487 | "\n%" PRId64 |
| 488 | " internal errors have occurred during the check.\n", |
| 489 | check->check_errors); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 490 | } |
| 491 | } |
| 492 | |
| 493 | if (check->total_clusters != 0 && check->allocated_clusters != 0) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 494 | qprintf(quiet, "%" PRId64 "/%" PRId64 " = %0.2f%% allocated, " |
| 495 | "%0.2f%% fragmented, %0.2f%% compressed clusters\n", |
| 496 | check->allocated_clusters, check->total_clusters, |
| 497 | check->allocated_clusters * 100.0 / check->total_clusters, |
| 498 | check->fragmented_clusters * 100.0 / check->allocated_clusters, |
| 499 | check->compressed_clusters * 100.0 / |
| 500 | check->allocated_clusters); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 501 | } |
| 502 | |
| 503 | if (check->image_end_offset) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 504 | qprintf(quiet, |
| 505 | "Image end offset: %" PRId64 "\n", check->image_end_offset); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 506 | } |
| 507 | } |
| 508 | |
| 509 | static int collect_image_check(BlockDriverState *bs, |
| 510 | ImageCheck *check, |
| 511 | const char *filename, |
| 512 | const char *fmt, |
| 513 | int fix) |
| 514 | { |
| 515 | int ret; |
| 516 | BdrvCheckResult result; |
| 517 | |
| 518 | ret = bdrv_check(bs, &result, fix); |
| 519 | if (ret < 0) { |
| 520 | return ret; |
| 521 | } |
| 522 | |
| 523 | check->filename = g_strdup(filename); |
| 524 | check->format = g_strdup(bdrv_get_format_name(bs)); |
| 525 | check->check_errors = result.check_errors; |
| 526 | check->corruptions = result.corruptions; |
| 527 | check->has_corruptions = result.corruptions != 0; |
| 528 | check->leaks = result.leaks; |
| 529 | check->has_leaks = result.leaks != 0; |
| 530 | check->corruptions_fixed = result.corruptions_fixed; |
| 531 | check->has_corruptions_fixed = result.corruptions != 0; |
| 532 | check->leaks_fixed = result.leaks_fixed; |
| 533 | check->has_leaks_fixed = result.leaks != 0; |
| 534 | check->image_end_offset = result.image_end_offset; |
| 535 | check->has_image_end_offset = result.image_end_offset != 0; |
| 536 | check->total_clusters = result.bfi.total_clusters; |
| 537 | check->has_total_clusters = result.bfi.total_clusters != 0; |
| 538 | check->allocated_clusters = result.bfi.allocated_clusters; |
| 539 | check->has_allocated_clusters = result.bfi.allocated_clusters != 0; |
| 540 | check->fragmented_clusters = result.bfi.fragmented_clusters; |
| 541 | check->has_fragmented_clusters = result.bfi.fragmented_clusters != 0; |
Stefan Hajnoczi | e6439d7 | 2013-02-07 17:15:04 +0100 | [diff] [blame] | 542 | check->compressed_clusters = result.bfi.compressed_clusters; |
| 543 | check->has_compressed_clusters = result.bfi.compressed_clusters != 0; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 544 | |
| 545 | return 0; |
| 546 | } |
| 547 | |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 548 | /* |
| 549 | * Checks an image for consistency. Exit codes: |
| 550 | * |
| 551 | * 0 - Check completed, image is good |
| 552 | * 1 - Check not completed because of internal errors |
| 553 | * 2 - Check completed, image is corrupted |
| 554 | * 3 - Check completed, image has leaked clusters, but is good otherwise |
| 555 | */ |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 556 | static int img_check(int argc, char **argv) |
| 557 | { |
| 558 | int c, ret; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 559 | OutputFormat output_format = OFORMAT_HUMAN; |
| 560 | const char *filename, *fmt, *output; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 561 | BlockDriverState *bs; |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 562 | int fix = 0; |
Stefan Hajnoczi | 058f8f1 | 2012-08-09 13:05:56 +0100 | [diff] [blame] | 563 | int flags = BDRV_O_FLAGS | BDRV_O_CHECK; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 564 | ImageCheck *check; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 565 | bool quiet = false; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 566 | |
| 567 | fmt = NULL; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 568 | output = NULL; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 569 | for(;;) { |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 570 | int option_index = 0; |
| 571 | static const struct option long_options[] = { |
| 572 | {"help", no_argument, 0, 'h'}, |
| 573 | {"format", required_argument, 0, 'f'}, |
| 574 | {"repair", no_argument, 0, 'r'}, |
| 575 | {"output", required_argument, 0, OPTION_OUTPUT}, |
| 576 | {0, 0, 0, 0} |
| 577 | }; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 578 | c = getopt_long(argc, argv, "f:hr:q", |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 579 | long_options, &option_index); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 580 | if (c == -1) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 581 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 582 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 583 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 584 | case '?': |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 585 | case 'h': |
| 586 | help(); |
| 587 | break; |
| 588 | case 'f': |
| 589 | fmt = optarg; |
| 590 | break; |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 591 | case 'r': |
| 592 | flags |= BDRV_O_RDWR; |
| 593 | |
| 594 | if (!strcmp(optarg, "leaks")) { |
| 595 | fix = BDRV_FIX_LEAKS; |
| 596 | } else if (!strcmp(optarg, "all")) { |
| 597 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; |
| 598 | } else { |
| 599 | help(); |
| 600 | } |
| 601 | break; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 602 | case OPTION_OUTPUT: |
| 603 | output = optarg; |
| 604 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 605 | case 'q': |
| 606 | quiet = true; |
| 607 | break; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 608 | } |
| 609 | } |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 610 | if (optind != argc - 1) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 611 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 612 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 613 | filename = argv[optind++]; |
| 614 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 615 | if (output && !strcmp(output, "json")) { |
| 616 | output_format = OFORMAT_JSON; |
| 617 | } else if (output && !strcmp(output, "human")) { |
| 618 | output_format = OFORMAT_HUMAN; |
| 619 | } else if (output) { |
| 620 | error_report("--output must be used with human or json as argument."); |
| 621 | return 1; |
| 622 | } |
| 623 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 624 | bs = bdrv_new_open(filename, fmt, flags, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 625 | if (!bs) { |
| 626 | return 1; |
| 627 | } |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 628 | |
| 629 | check = g_new0(ImageCheck, 1); |
| 630 | ret = collect_image_check(bs, check, filename, fmt, fix); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 631 | |
| 632 | if (ret == -ENOTSUP) { |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 633 | if (output_format == OFORMAT_HUMAN) { |
| 634 | error_report("This image format does not support checks"); |
| 635 | } |
Peter Lieven | fefddf9 | 2013-10-24 08:53:34 +0200 | [diff] [blame] | 636 | ret = 63; |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 637 | goto fail; |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 638 | } |
| 639 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 640 | if (check->corruptions_fixed || check->leaks_fixed) { |
| 641 | int corruptions_fixed, leaks_fixed; |
| 642 | |
| 643 | leaks_fixed = check->leaks_fixed; |
| 644 | corruptions_fixed = check->corruptions_fixed; |
| 645 | |
| 646 | if (output_format == OFORMAT_HUMAN) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 647 | qprintf(quiet, |
| 648 | "The following inconsistencies were found and repaired:\n\n" |
| 649 | " %" PRId64 " leaked clusters\n" |
| 650 | " %" PRId64 " corruptions\n\n" |
| 651 | "Double checking the fixed image now...\n", |
| 652 | check->leaks_fixed, |
| 653 | check->corruptions_fixed); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 654 | } |
| 655 | |
| 656 | ret = collect_image_check(bs, check, filename, fmt, 0); |
| 657 | |
| 658 | check->leaks_fixed = leaks_fixed; |
| 659 | check->corruptions_fixed = corruptions_fixed; |
Kevin Wolf | ccf3471 | 2012-05-11 18:16:54 +0200 | [diff] [blame] | 660 | } |
| 661 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 662 | switch (output_format) { |
| 663 | case OFORMAT_HUMAN: |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 664 | dump_human_image_check(check, quiet); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 665 | break; |
| 666 | case OFORMAT_JSON: |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 667 | dump_json_image_check(check, quiet); |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 668 | break; |
| 669 | } |
| 670 | |
| 671 | if (ret || check->check_errors) { |
| 672 | ret = 1; |
| 673 | goto fail; |
| 674 | } |
| 675 | |
| 676 | if (check->corruptions) { |
| 677 | ret = 2; |
| 678 | } else if (check->leaks) { |
| 679 | ret = 3; |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 680 | } else { |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 681 | ret = 0; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 682 | } |
| 683 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 684 | fail: |
| 685 | qapi_free_ImageCheck(check); |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 686 | bdrv_unref(bs); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 687 | |
Federico Simoncelli | 8599ea4 | 2013-01-28 06:59:47 -0500 | [diff] [blame] | 688 | return ret; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 689 | } |
| 690 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 691 | static int img_commit(int argc, char **argv) |
| 692 | { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 693 | int c, ret, flags; |
| 694 | const char *filename, *fmt, *cache; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 695 | BlockDriverState *bs; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 696 | bool quiet = false; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 697 | |
| 698 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 699 | cache = BDRV_DEFAULT_CACHE; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 700 | for(;;) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 701 | c = getopt(argc, argv, "f:ht:q"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 702 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 703 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 704 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 705 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 706 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 707 | case 'h': |
| 708 | help(); |
| 709 | break; |
| 710 | case 'f': |
| 711 | fmt = optarg; |
| 712 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 713 | case 't': |
| 714 | cache = optarg; |
| 715 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 716 | case 'q': |
| 717 | quiet = true; |
| 718 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 719 | } |
| 720 | } |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 721 | if (optind != argc - 1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 722 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 723 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 724 | filename = argv[optind++]; |
| 725 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 726 | flags = BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 727 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 728 | if (ret < 0) { |
| 729 | error_report("Invalid cache option: %s", cache); |
| 730 | return -1; |
| 731 | } |
| 732 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 733 | bs = bdrv_new_open(filename, fmt, flags, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 734 | if (!bs) { |
| 735 | return 1; |
| 736 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 737 | ret = bdrv_commit(bs); |
| 738 | switch(ret) { |
| 739 | case 0: |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 740 | qprintf(quiet, "Image committed.\n"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 741 | break; |
| 742 | case -ENOENT: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 743 | error_report("No disk inserted"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 744 | break; |
| 745 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 746 | error_report("Image is read-only"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 747 | break; |
| 748 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 749 | error_report("Image is already committed"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 750 | break; |
| 751 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 752 | error_report("Error while committing image"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 753 | break; |
| 754 | } |
| 755 | |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 756 | bdrv_unref(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 757 | if (ret) { |
| 758 | return 1; |
| 759 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 760 | return 0; |
| 761 | } |
| 762 | |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 763 | /* |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 764 | * Returns true iff the first sector pointed to by 'buf' contains at least |
| 765 | * a non-NUL byte. |
| 766 | * |
| 767 | * 'pnum' is set to the number of sectors (including and immediately following |
| 768 | * the first one) that are known to be in the same allocated/unallocated state. |
| 769 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 770 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
| 771 | { |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 772 | bool is_zero; |
| 773 | int i; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 774 | |
| 775 | if (n <= 0) { |
| 776 | *pnum = 0; |
| 777 | return 0; |
| 778 | } |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 779 | is_zero = buffer_is_zero(buf, 512); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 780 | for(i = 1; i < n; i++) { |
| 781 | buf += 512; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 782 | if (is_zero != buffer_is_zero(buf, 512)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 783 | break; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 784 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 785 | } |
| 786 | *pnum = i; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 787 | return !is_zero; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 788 | } |
| 789 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 790 | /* |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 791 | * Like is_allocated_sectors, but if the buffer starts with a used sector, |
| 792 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids |
| 793 | * breaking up write requests for only small sparse areas. |
| 794 | */ |
| 795 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, |
| 796 | int min) |
| 797 | { |
| 798 | int ret; |
| 799 | int num_checked, num_used; |
| 800 | |
| 801 | if (n < min) { |
| 802 | min = n; |
| 803 | } |
| 804 | |
| 805 | ret = is_allocated_sectors(buf, n, pnum); |
| 806 | if (!ret) { |
| 807 | return ret; |
| 808 | } |
| 809 | |
| 810 | num_used = *pnum; |
| 811 | buf += BDRV_SECTOR_SIZE * *pnum; |
| 812 | n -= *pnum; |
| 813 | num_checked = num_used; |
| 814 | |
| 815 | while (n > 0) { |
| 816 | ret = is_allocated_sectors(buf, n, pnum); |
| 817 | |
| 818 | buf += BDRV_SECTOR_SIZE * *pnum; |
| 819 | n -= *pnum; |
| 820 | num_checked += *pnum; |
| 821 | if (ret) { |
| 822 | num_used = num_checked; |
| 823 | } else if (*pnum >= min) { |
| 824 | break; |
| 825 | } |
| 826 | } |
| 827 | |
| 828 | *pnum = num_used; |
| 829 | return 1; |
| 830 | } |
| 831 | |
| 832 | /* |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 833 | * Compares two buffers sector by sector. Returns 0 if the first sector of both |
| 834 | * buffers matches, non-zero otherwise. |
| 835 | * |
| 836 | * pnum is set to the number of sectors (including and immediately following |
| 837 | * the first one) that are known to have the same comparison result |
| 838 | */ |
| 839 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
| 840 | int *pnum) |
| 841 | { |
| 842 | int res, i; |
| 843 | |
| 844 | if (n <= 0) { |
| 845 | *pnum = 0; |
| 846 | return 0; |
| 847 | } |
| 848 | |
| 849 | res = !!memcmp(buf1, buf2, 512); |
| 850 | for(i = 1; i < n; i++) { |
| 851 | buf1 += 512; |
| 852 | buf2 += 512; |
| 853 | |
| 854 | if (!!memcmp(buf1, buf2, 512) != res) { |
| 855 | break; |
| 856 | } |
| 857 | } |
| 858 | |
| 859 | *pnum = i; |
| 860 | return res; |
| 861 | } |
| 862 | |
Kevin Wolf | 80ee15a | 2009-09-15 12:30:43 +0200 | [diff] [blame] | 863 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 864 | |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 865 | static int64_t sectors_to_bytes(int64_t sectors) |
| 866 | { |
| 867 | return sectors << BDRV_SECTOR_BITS; |
| 868 | } |
| 869 | |
| 870 | static int64_t sectors_to_process(int64_t total, int64_t from) |
| 871 | { |
| 872 | return MIN(total - from, IO_BUF_SIZE >> BDRV_SECTOR_BITS); |
| 873 | } |
| 874 | |
| 875 | /* |
| 876 | * Check if passed sectors are empty (not allocated or contain only 0 bytes) |
| 877 | * |
| 878 | * Returns 0 in case sectors are filled with 0, 1 if sectors contain non-zero |
| 879 | * data and negative value on error. |
| 880 | * |
| 881 | * @param bs: Driver used for accessing file |
| 882 | * @param sect_num: Number of first sector to check |
| 883 | * @param sect_count: Number of sectors to check |
| 884 | * @param filename: Name of disk file we are checking (logging purpose) |
| 885 | * @param buffer: Allocated buffer for storing read data |
| 886 | * @param quiet: Flag for quiet mode |
| 887 | */ |
| 888 | static int check_empty_sectors(BlockDriverState *bs, int64_t sect_num, |
| 889 | int sect_count, const char *filename, |
| 890 | uint8_t *buffer, bool quiet) |
| 891 | { |
| 892 | int pnum, ret = 0; |
| 893 | ret = bdrv_read(bs, sect_num, buffer, sect_count); |
| 894 | if (ret < 0) { |
| 895 | error_report("Error while reading offset %" PRId64 " of %s: %s", |
| 896 | sectors_to_bytes(sect_num), filename, strerror(-ret)); |
| 897 | return ret; |
| 898 | } |
| 899 | ret = is_allocated_sectors(buffer, sect_count, &pnum); |
| 900 | if (ret || pnum != sect_count) { |
| 901 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
| 902 | sectors_to_bytes(ret ? sect_num : sect_num + pnum)); |
| 903 | return 1; |
| 904 | } |
| 905 | |
| 906 | return 0; |
| 907 | } |
| 908 | |
| 909 | /* |
| 910 | * Compares two images. Exit codes: |
| 911 | * |
| 912 | * 0 - Images are identical |
| 913 | * 1 - Images differ |
| 914 | * >1 - Error occurred |
| 915 | */ |
| 916 | static int img_compare(int argc, char **argv) |
| 917 | { |
| 918 | const char *fmt1 = NULL, *fmt2 = NULL, *filename1, *filename2; |
| 919 | BlockDriverState *bs1, *bs2; |
| 920 | int64_t total_sectors1, total_sectors2; |
| 921 | uint8_t *buf1 = NULL, *buf2 = NULL; |
| 922 | int pnum1, pnum2; |
| 923 | int allocated1, allocated2; |
| 924 | int ret = 0; /* return value - 0 Ident, 1 Different, >1 Error */ |
| 925 | bool progress = false, quiet = false, strict = false; |
| 926 | int64_t total_sectors; |
| 927 | int64_t sector_num = 0; |
| 928 | int64_t nb_sectors; |
| 929 | int c, pnum; |
| 930 | uint64_t bs_sectors; |
| 931 | uint64_t progress_base; |
| 932 | |
| 933 | for (;;) { |
| 934 | c = getopt(argc, argv, "hpf:F:sq"); |
| 935 | if (c == -1) { |
| 936 | break; |
| 937 | } |
| 938 | switch (c) { |
| 939 | case '?': |
| 940 | case 'h': |
| 941 | help(); |
| 942 | break; |
| 943 | case 'f': |
| 944 | fmt1 = optarg; |
| 945 | break; |
| 946 | case 'F': |
| 947 | fmt2 = optarg; |
| 948 | break; |
| 949 | case 'p': |
| 950 | progress = true; |
| 951 | break; |
| 952 | case 'q': |
| 953 | quiet = true; |
| 954 | break; |
| 955 | case 's': |
| 956 | strict = true; |
| 957 | break; |
| 958 | } |
| 959 | } |
| 960 | |
| 961 | /* Progress is not shown in Quiet mode */ |
| 962 | if (quiet) { |
| 963 | progress = false; |
| 964 | } |
| 965 | |
| 966 | |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 967 | if (optind != argc - 2) { |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 968 | help(); |
| 969 | } |
| 970 | filename1 = argv[optind++]; |
| 971 | filename2 = argv[optind++]; |
| 972 | |
| 973 | /* Initialize before goto out */ |
| 974 | qemu_progress_init(progress, 2.0); |
| 975 | |
| 976 | bs1 = bdrv_new_open(filename1, fmt1, BDRV_O_FLAGS, true, quiet); |
| 977 | if (!bs1) { |
| 978 | error_report("Can't open file %s", filename1); |
| 979 | ret = 2; |
| 980 | goto out3; |
| 981 | } |
| 982 | |
| 983 | bs2 = bdrv_new_open(filename2, fmt2, BDRV_O_FLAGS, true, quiet); |
| 984 | if (!bs2) { |
| 985 | error_report("Can't open file %s", filename2); |
| 986 | ret = 2; |
| 987 | goto out2; |
| 988 | } |
| 989 | |
| 990 | buf1 = qemu_blockalign(bs1, IO_BUF_SIZE); |
| 991 | buf2 = qemu_blockalign(bs2, IO_BUF_SIZE); |
| 992 | bdrv_get_geometry(bs1, &bs_sectors); |
| 993 | total_sectors1 = bs_sectors; |
| 994 | bdrv_get_geometry(bs2, &bs_sectors); |
| 995 | total_sectors2 = bs_sectors; |
| 996 | total_sectors = MIN(total_sectors1, total_sectors2); |
| 997 | progress_base = MAX(total_sectors1, total_sectors2); |
| 998 | |
| 999 | qemu_progress_print(0, 100); |
| 1000 | |
| 1001 | if (strict && total_sectors1 != total_sectors2) { |
| 1002 | ret = 1; |
| 1003 | qprintf(quiet, "Strict mode: Image size mismatch!\n"); |
| 1004 | goto out; |
| 1005 | } |
| 1006 | |
| 1007 | for (;;) { |
| 1008 | nb_sectors = sectors_to_process(total_sectors, sector_num); |
| 1009 | if (nb_sectors <= 0) { |
| 1010 | break; |
| 1011 | } |
| 1012 | allocated1 = bdrv_is_allocated_above(bs1, NULL, sector_num, nb_sectors, |
| 1013 | &pnum1); |
| 1014 | if (allocated1 < 0) { |
| 1015 | ret = 3; |
| 1016 | error_report("Sector allocation test failed for %s", filename1); |
| 1017 | goto out; |
| 1018 | } |
| 1019 | |
| 1020 | allocated2 = bdrv_is_allocated_above(bs2, NULL, sector_num, nb_sectors, |
| 1021 | &pnum2); |
| 1022 | if (allocated2 < 0) { |
| 1023 | ret = 3; |
| 1024 | error_report("Sector allocation test failed for %s", filename2); |
| 1025 | goto out; |
| 1026 | } |
| 1027 | nb_sectors = MIN(pnum1, pnum2); |
| 1028 | |
| 1029 | if (allocated1 == allocated2) { |
| 1030 | if (allocated1) { |
| 1031 | ret = bdrv_read(bs1, sector_num, buf1, nb_sectors); |
| 1032 | if (ret < 0) { |
| 1033 | error_report("Error while reading offset %" PRId64 " of %s:" |
| 1034 | " %s", sectors_to_bytes(sector_num), filename1, |
| 1035 | strerror(-ret)); |
| 1036 | ret = 4; |
| 1037 | goto out; |
| 1038 | } |
| 1039 | ret = bdrv_read(bs2, sector_num, buf2, nb_sectors); |
| 1040 | if (ret < 0) { |
| 1041 | error_report("Error while reading offset %" PRId64 |
| 1042 | " of %s: %s", sectors_to_bytes(sector_num), |
| 1043 | filename2, strerror(-ret)); |
| 1044 | ret = 4; |
| 1045 | goto out; |
| 1046 | } |
| 1047 | ret = compare_sectors(buf1, buf2, nb_sectors, &pnum); |
| 1048 | if (ret || pnum != nb_sectors) { |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1049 | qprintf(quiet, "Content mismatch at offset %" PRId64 "!\n", |
| 1050 | sectors_to_bytes( |
| 1051 | ret ? sector_num : sector_num + pnum)); |
Fam Zheng | 36452f1 | 2013-11-13 20:26:49 +0800 | [diff] [blame] | 1052 | ret = 1; |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1053 | goto out; |
| 1054 | } |
| 1055 | } |
| 1056 | } else { |
| 1057 | if (strict) { |
| 1058 | ret = 1; |
| 1059 | qprintf(quiet, "Strict mode: Offset %" PRId64 |
| 1060 | " allocation mismatch!\n", |
| 1061 | sectors_to_bytes(sector_num)); |
| 1062 | goto out; |
| 1063 | } |
| 1064 | |
| 1065 | if (allocated1) { |
| 1066 | ret = check_empty_sectors(bs1, sector_num, nb_sectors, |
| 1067 | filename1, buf1, quiet); |
| 1068 | } else { |
| 1069 | ret = check_empty_sectors(bs2, sector_num, nb_sectors, |
| 1070 | filename2, buf1, quiet); |
| 1071 | } |
| 1072 | if (ret) { |
| 1073 | if (ret < 0) { |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1074 | error_report("Error while reading offset %" PRId64 ": %s", |
| 1075 | sectors_to_bytes(sector_num), strerror(-ret)); |
Fam Zheng | 36452f1 | 2013-11-13 20:26:49 +0800 | [diff] [blame] | 1076 | ret = 4; |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1077 | } |
| 1078 | goto out; |
| 1079 | } |
| 1080 | } |
| 1081 | sector_num += nb_sectors; |
| 1082 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); |
| 1083 | } |
| 1084 | |
| 1085 | if (total_sectors1 != total_sectors2) { |
| 1086 | BlockDriverState *bs_over; |
| 1087 | int64_t total_sectors_over; |
| 1088 | const char *filename_over; |
| 1089 | |
| 1090 | qprintf(quiet, "Warning: Image size mismatch!\n"); |
| 1091 | if (total_sectors1 > total_sectors2) { |
| 1092 | total_sectors_over = total_sectors1; |
| 1093 | bs_over = bs1; |
| 1094 | filename_over = filename1; |
| 1095 | } else { |
| 1096 | total_sectors_over = total_sectors2; |
| 1097 | bs_over = bs2; |
| 1098 | filename_over = filename2; |
| 1099 | } |
| 1100 | |
| 1101 | for (;;) { |
| 1102 | nb_sectors = sectors_to_process(total_sectors_over, sector_num); |
| 1103 | if (nb_sectors <= 0) { |
| 1104 | break; |
| 1105 | } |
| 1106 | ret = bdrv_is_allocated_above(bs_over, NULL, sector_num, |
| 1107 | nb_sectors, &pnum); |
| 1108 | if (ret < 0) { |
| 1109 | ret = 3; |
| 1110 | error_report("Sector allocation test failed for %s", |
| 1111 | filename_over); |
| 1112 | goto out; |
| 1113 | |
| 1114 | } |
| 1115 | nb_sectors = pnum; |
| 1116 | if (ret) { |
| 1117 | ret = check_empty_sectors(bs_over, sector_num, nb_sectors, |
| 1118 | filename_over, buf1, quiet); |
| 1119 | if (ret) { |
| 1120 | if (ret < 0) { |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1121 | error_report("Error while reading offset %" PRId64 |
| 1122 | " of %s: %s", sectors_to_bytes(sector_num), |
| 1123 | filename_over, strerror(-ret)); |
Fam Zheng | 36452f1 | 2013-11-13 20:26:49 +0800 | [diff] [blame] | 1124 | ret = 4; |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1125 | } |
| 1126 | goto out; |
| 1127 | } |
| 1128 | } |
| 1129 | sector_num += nb_sectors; |
| 1130 | qemu_progress_print(((float) nb_sectors / progress_base)*100, 100); |
| 1131 | } |
| 1132 | } |
| 1133 | |
| 1134 | qprintf(quiet, "Images are identical.\n"); |
| 1135 | ret = 0; |
| 1136 | |
| 1137 | out: |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 1138 | bdrv_unref(bs2); |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1139 | qemu_vfree(buf1); |
| 1140 | qemu_vfree(buf2); |
| 1141 | out2: |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 1142 | bdrv_unref(bs1); |
Miroslav Rezanina | d14ed18 | 2013-02-13 09:09:41 +0100 | [diff] [blame] | 1143 | out3: |
| 1144 | qemu_progress_end(); |
| 1145 | return ret; |
| 1146 | } |
| 1147 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1148 | static int img_convert(int argc, char **argv) |
| 1149 | { |
Peter Lieven | 24f833c | 2013-11-27 11:07:07 +0100 | [diff] [blame] | 1150 | int c, n, n1, bs_n, bs_i, compress, cluster_sectors, skip_create; |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1151 | int64_t ret = 0; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1152 | int progress = 0, flags; |
| 1153 | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 1154 | BlockDriver *drv, *proto_drv; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1155 | BlockDriverState **bs = NULL, *out_bs = NULL; |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1156 | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 1157 | uint64_t bs_sectors; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1158 | uint8_t * buf = NULL; |
Peter Lieven | f2521c9 | 2013-11-27 11:07:06 +0100 | [diff] [blame] | 1159 | size_t bufsectors = IO_BUF_SIZE / BDRV_SECTOR_SIZE; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1160 | const uint8_t *buf1; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1161 | BlockDriverInfo bdi; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 1162 | QEMUOptionParameter *param = NULL, *create_options = NULL; |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 1163 | QEMUOptionParameter *out_baseimg_param; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1164 | char *options = NULL; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 1165 | const char *snapshot_name = NULL; |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1166 | int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1167 | bool quiet = false; |
Max Reitz | cc84d90 | 2013-09-06 17:14:26 +0200 | [diff] [blame] | 1168 | Error *local_err = NULL; |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1169 | QemuOpts *sn_opts = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1170 | |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1171 | /* Initialize before goto out */ |
| 1172 | qemu_progress_init(progress, 1.0); |
| 1173 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1174 | fmt = NULL; |
| 1175 | out_fmt = "raw"; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1176 | cache = "unsafe"; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1177 | out_baseimg = NULL; |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1178 | compress = 0; |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1179 | skip_create = 0; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1180 | for(;;) { |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1181 | c = getopt(argc, argv, "f:O:B:s:hce6o:pS:t:qnl:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1182 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1183 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1184 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1185 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1186 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1187 | case 'h': |
| 1188 | help(); |
| 1189 | break; |
| 1190 | case 'f': |
| 1191 | fmt = optarg; |
| 1192 | break; |
| 1193 | case 'O': |
| 1194 | out_fmt = optarg; |
| 1195 | break; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1196 | case 'B': |
| 1197 | out_baseimg = optarg; |
| 1198 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1199 | case 'c': |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1200 | compress = 1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1201 | break; |
| 1202 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 1203 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1204 | "encryption\' instead!"); |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1205 | ret = -1; |
| 1206 | goto out; |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 1207 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 1208 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1209 | "compat6\' instead!"); |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1210 | ret = -1; |
| 1211 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1212 | case 'o': |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1213 | if (!is_valid_option_list(optarg)) { |
| 1214 | error_report("Invalid option list: %s", optarg); |
| 1215 | ret = -1; |
| 1216 | goto out; |
| 1217 | } |
| 1218 | if (!options) { |
| 1219 | options = g_strdup(optarg); |
| 1220 | } else { |
| 1221 | char *old_options = options; |
| 1222 | options = g_strdup_printf("%s,%s", options, optarg); |
| 1223 | g_free(old_options); |
| 1224 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1225 | break; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 1226 | case 's': |
| 1227 | snapshot_name = optarg; |
| 1228 | break; |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1229 | case 'l': |
| 1230 | if (strstart(optarg, SNAPSHOT_OPT_BASE, NULL)) { |
| 1231 | sn_opts = qemu_opts_parse(&internal_snapshot_opts, optarg, 0); |
| 1232 | if (!sn_opts) { |
| 1233 | error_report("Failed in parsing snapshot param '%s'", |
| 1234 | optarg); |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1235 | ret = -1; |
| 1236 | goto out; |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1237 | } |
| 1238 | } else { |
| 1239 | snapshot_name = optarg; |
| 1240 | } |
| 1241 | break; |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1242 | case 'S': |
| 1243 | { |
| 1244 | int64_t sval; |
Markus Armbruster | e36b369 | 2011-11-22 09:46:05 +0100 | [diff] [blame] | 1245 | char *end; |
| 1246 | sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B); |
| 1247 | if (sval < 0 || *end) { |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1248 | error_report("Invalid minimum zero buffer size for sparse output specified"); |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1249 | ret = -1; |
| 1250 | goto out; |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1251 | } |
| 1252 | |
| 1253 | min_sparse = sval / BDRV_SECTOR_SIZE; |
| 1254 | break; |
| 1255 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1256 | case 'p': |
| 1257 | progress = 1; |
| 1258 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1259 | case 't': |
| 1260 | cache = optarg; |
| 1261 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1262 | case 'q': |
| 1263 | quiet = true; |
| 1264 | break; |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1265 | case 'n': |
| 1266 | skip_create = 1; |
| 1267 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1268 | } |
| 1269 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1270 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1271 | if (quiet) { |
| 1272 | progress = 0; |
| 1273 | } |
| 1274 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1275 | bs_n = argc - optind - 1; |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 1276 | out_filename = bs_n >= 1 ? argv[argc - 1] : NULL; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1277 | |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1278 | if (options && has_help_option(options)) { |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 1279 | ret = print_block_option_help(out_filename, out_fmt); |
| 1280 | goto out; |
| 1281 | } |
| 1282 | |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 1283 | if (bs_n < 1) { |
| 1284 | help(); |
| 1285 | } |
| 1286 | |
| 1287 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1288 | if (bs_n > 1 && out_baseimg) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1289 | error_report("-B makes no sense when concatenating multiple input " |
| 1290 | "images"); |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 1291 | ret = -1; |
| 1292 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1293 | } |
Dong Xu Wang | f8111c2 | 2012-03-15 20:13:31 +0800 | [diff] [blame] | 1294 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1295 | qemu_progress_print(0, 100); |
| 1296 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1297 | bs = g_malloc0(bs_n * sizeof(BlockDriverState *)); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1298 | |
| 1299 | total_sectors = 0; |
| 1300 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1301 | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt, BDRV_O_FLAGS, true, |
| 1302 | quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1303 | if (!bs[bs_i]) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1304 | error_report("Could not open '%s'", argv[optind + bs_i]); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1305 | ret = -1; |
| 1306 | goto out; |
| 1307 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1308 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 1309 | total_sectors += bs_sectors; |
| 1310 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1311 | |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1312 | if (sn_opts) { |
| 1313 | ret = bdrv_snapshot_load_tmp(bs[0], |
| 1314 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_ID), |
| 1315 | qemu_opt_get(sn_opts, SNAPSHOT_OPT_NAME), |
| 1316 | &local_err); |
| 1317 | } else if (snapshot_name != NULL) { |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 1318 | if (bs_n > 1) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 1319 | error_report("No support for concatenating multiple snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 1320 | ret = -1; |
| 1321 | goto out; |
| 1322 | } |
Wenchao Xia | 7b4c478 | 2013-12-04 17:10:54 +0800 | [diff] [blame] | 1323 | |
| 1324 | bdrv_snapshot_load_tmp_by_id_or_name(bs[0], snapshot_name, &local_err); |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1325 | } |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 1326 | if (local_err) { |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1327 | error_report("Failed to load snapshot: %s", |
| 1328 | error_get_pretty(local_err)); |
| 1329 | error_free(local_err); |
| 1330 | ret = -1; |
| 1331 | goto out; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 1332 | } |
| 1333 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1334 | /* Find driver and parse its options */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1335 | drv = bdrv_find_format(out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1336 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1337 | error_report("Unknown file format '%s'", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1338 | ret = -1; |
| 1339 | goto out; |
| 1340 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1341 | |
Kevin Wolf | 9828962 | 2013-07-10 15:47:39 +0200 | [diff] [blame] | 1342 | proto_drv = bdrv_find_protocol(out_filename, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1343 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1344 | error_report("Unknown protocol '%s'", out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1345 | ret = -1; |
| 1346 | goto out; |
| 1347 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 1348 | |
| 1349 | create_options = append_option_parameters(create_options, |
| 1350 | drv->create_options); |
| 1351 | create_options = append_option_parameters(create_options, |
| 1352 | proto_drv->create_options); |
Kevin Wolf | db08adf | 2009-06-04 15:39:38 +0200 | [diff] [blame] | 1353 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1354 | if (options) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 1355 | param = parse_option_parameters(options, create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1356 | if (param == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1357 | error_report("Invalid options for file format '%s'.", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1358 | ret = -1; |
| 1359 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1360 | } |
| 1361 | } else { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 1362 | param = parse_option_parameters("", create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1363 | } |
| 1364 | |
| 1365 | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512); |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1366 | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1367 | if (ret < 0) { |
| 1368 | goto out; |
| 1369 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1370 | |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 1371 | /* Get backing file name if -o backing_file was used */ |
| 1372 | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
| 1373 | if (out_baseimg_param) { |
| 1374 | out_baseimg = out_baseimg_param->value.s; |
| 1375 | } |
| 1376 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1377 | /* Check if compression is supported */ |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 1378 | if (compress) { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1379 | QEMUOptionParameter *encryption = |
| 1380 | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
Kevin Wolf | 41521fa | 2011-10-18 16:19:42 +0200 | [diff] [blame] | 1381 | QEMUOptionParameter *preallocation = |
| 1382 | get_option_parameter(param, BLOCK_OPT_PREALLOC); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1383 | |
| 1384 | if (!drv->bdrv_write_compressed) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1385 | error_report("Compression not supported for this file format"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1386 | ret = -1; |
| 1387 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1388 | } |
| 1389 | |
| 1390 | if (encryption && encryption->value.n) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1391 | error_report("Compression and encryption not supported at " |
| 1392 | "the same time"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1393 | ret = -1; |
| 1394 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1395 | } |
Kevin Wolf | 41521fa | 2011-10-18 16:19:42 +0200 | [diff] [blame] | 1396 | |
| 1397 | if (preallocation && preallocation->value.s |
| 1398 | && strcmp(preallocation->value.s, "off")) |
| 1399 | { |
| 1400 | error_report("Compression and preallocation not supported at " |
| 1401 | "the same time"); |
| 1402 | ret = -1; |
| 1403 | goto out; |
| 1404 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 1405 | } |
| 1406 | |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1407 | if (!skip_create) { |
| 1408 | /* Create the new image */ |
Max Reitz | cc84d90 | 2013-09-06 17:14:26 +0200 | [diff] [blame] | 1409 | ret = bdrv_create(drv, out_filename, param, &local_err); |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1410 | if (ret < 0) { |
Max Reitz | cc84d90 | 2013-09-06 17:14:26 +0200 | [diff] [blame] | 1411 | error_report("%s: error while converting %s: %s", |
| 1412 | out_filename, out_fmt, error_get_pretty(local_err)); |
| 1413 | error_free(local_err); |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1414 | goto out; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1415 | } |
| 1416 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 1417 | |
Peter Lieven | 5a37b60 | 2013-10-24 12:07:06 +0200 | [diff] [blame] | 1418 | flags = min_sparse ? (BDRV_O_RDWR | BDRV_O_UNMAP) : BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 1419 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1420 | if (ret < 0) { |
| 1421 | error_report("Invalid cache option: %s", cache); |
| 1422 | return -1; |
| 1423 | } |
| 1424 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1425 | out_bs = bdrv_new_open(out_filename, out_fmt, flags, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1426 | if (!out_bs) { |
| 1427 | ret = -1; |
| 1428 | goto out; |
| 1429 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1430 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1431 | bs_i = 0; |
| 1432 | bs_offset = 0; |
| 1433 | bdrv_get_geometry(bs[0], &bs_sectors); |
Peter Lieven | f2521c9 | 2013-11-27 11:07:06 +0100 | [diff] [blame] | 1434 | |
| 1435 | /* increase bufsectors from the default 4096 (2M) if opt_transfer_length |
| 1436 | * or discard_alignment of the out_bs is greater. Limit to 32768 (16MB) |
| 1437 | * as maximum. */ |
| 1438 | bufsectors = MIN(32768, |
| 1439 | MAX(bufsectors, MAX(out_bs->bl.opt_transfer_length, |
| 1440 | out_bs->bl.discard_alignment)) |
| 1441 | ); |
| 1442 | |
| 1443 | buf = qemu_blockalign(out_bs, bufsectors * BDRV_SECTOR_SIZE); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1444 | |
Alexandre Derumier | b2e1049 | 2013-09-02 19:07:24 +0100 | [diff] [blame] | 1445 | if (skip_create) { |
| 1446 | int64_t output_length = bdrv_getlength(out_bs); |
| 1447 | if (output_length < 0) { |
| 1448 | error_report("unable to get output image length: %s\n", |
| 1449 | strerror(-output_length)); |
| 1450 | ret = -1; |
| 1451 | goto out; |
| 1452 | } else if (output_length < total_sectors << BDRV_SECTOR_BITS) { |
| 1453 | error_report("output file is smaller than input file"); |
| 1454 | ret = -1; |
| 1455 | goto out; |
| 1456 | } |
| 1457 | } |
| 1458 | |
Peter Lieven | 24f833c | 2013-11-27 11:07:07 +0100 | [diff] [blame] | 1459 | cluster_sectors = 0; |
| 1460 | ret = bdrv_get_info(out_bs, &bdi); |
| 1461 | if (ret < 0) { |
| 1462 | if (compress) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1463 | error_report("could not get block driver info"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1464 | goto out; |
| 1465 | } |
Peter Lieven | 24f833c | 2013-11-27 11:07:07 +0100 | [diff] [blame] | 1466 | } else { |
| 1467 | cluster_sectors = bdi.cluster_size / BDRV_SECTOR_SIZE; |
| 1468 | } |
| 1469 | |
| 1470 | if (compress) { |
| 1471 | if (cluster_sectors <= 0 || cluster_sectors > bufsectors) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1472 | error_report("invalid cluster size"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1473 | ret = -1; |
| 1474 | goto out; |
| 1475 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1476 | sector_num = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1477 | |
| 1478 | nb_sectors = total_sectors; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1479 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1480 | for(;;) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1481 | int64_t bs_num; |
| 1482 | int remainder; |
| 1483 | uint8_t *buf2; |
| 1484 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1485 | nb_sectors = total_sectors - sector_num; |
| 1486 | if (nb_sectors <= 0) |
| 1487 | break; |
| 1488 | if (nb_sectors >= cluster_sectors) |
| 1489 | n = cluster_sectors; |
| 1490 | else |
| 1491 | n = nb_sectors; |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1492 | |
| 1493 | bs_num = sector_num - bs_offset; |
| 1494 | assert (bs_num >= 0); |
| 1495 | remainder = n; |
| 1496 | buf2 = buf; |
| 1497 | while (remainder > 0) { |
| 1498 | int nlow; |
| 1499 | while (bs_num == bs_sectors) { |
| 1500 | bs_i++; |
| 1501 | assert (bs_i < bs_n); |
| 1502 | bs_offset += bs_sectors; |
| 1503 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 1504 | bs_num = 0; |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 1505 | /* printf("changing part: sector_num=%" PRId64 ", " |
| 1506 | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64 |
| 1507 | "\n", sector_num, bs_i, bs_offset, bs_sectors); */ |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1508 | } |
| 1509 | assert (bs_num < bs_sectors); |
| 1510 | |
| 1511 | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
| 1512 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1513 | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
| 1514 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1515 | error_report("error while reading sector %" PRId64 ": %s", |
| 1516 | bs_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1517 | goto out; |
| 1518 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1519 | |
| 1520 | buf2 += nlow * 512; |
| 1521 | bs_num += nlow; |
| 1522 | |
| 1523 | remainder -= nlow; |
| 1524 | } |
| 1525 | assert (remainder == 0); |
| 1526 | |
Stefan Hajnoczi | 54f106d | 2013-04-15 17:17:33 +0200 | [diff] [blame] | 1527 | if (!buffer_is_zero(buf, n * BDRV_SECTOR_SIZE)) { |
| 1528 | ret = bdrv_write_compressed(out_bs, sector_num, buf, n); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1529 | if (ret != 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1530 | error_report("error while compressing sector %" PRId64 |
| 1531 | ": %s", sector_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1532 | goto out; |
| 1533 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1534 | } |
| 1535 | sector_num += n; |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1536 | qemu_progress_print(100.0 * sector_num / total_sectors, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1537 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1538 | /* signal EOF to align */ |
| 1539 | bdrv_write_compressed(out_bs, 0, NULL, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1540 | } else { |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1541 | int64_t sectors_to_read, sectors_read, sector_num_next_status; |
| 1542 | bool count_allocated_sectors; |
Peter Lieven | 11b6699 | 2013-10-24 12:07:05 +0200 | [diff] [blame] | 1543 | int has_zero_init = min_sparse ? bdrv_has_zero_init(out_bs) : 0; |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 1544 | |
Peter Lieven | 5a37b60 | 2013-10-24 12:07:06 +0200 | [diff] [blame] | 1545 | if (!has_zero_init && bdrv_can_write_zeroes_with_unmap(out_bs)) { |
| 1546 | ret = bdrv_make_zero(out_bs, BDRV_REQ_MAY_UNMAP); |
| 1547 | if (ret < 0) { |
| 1548 | goto out; |
| 1549 | } |
| 1550 | has_zero_init = 1; |
| 1551 | } |
| 1552 | |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1553 | sectors_to_read = total_sectors; |
| 1554 | count_allocated_sectors = progress && (out_baseimg || has_zero_init); |
| 1555 | restart: |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1556 | sector_num = 0; // total number of sectors converted so far |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1557 | sectors_read = 0; |
| 1558 | sector_num_next_status = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1559 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1560 | for(;;) { |
| 1561 | nb_sectors = total_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1562 | if (nb_sectors <= 0) { |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1563 | if (count_allocated_sectors) { |
| 1564 | sectors_to_read = sectors_read; |
| 1565 | count_allocated_sectors = false; |
| 1566 | goto restart; |
| 1567 | } |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1568 | ret = 0; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1569 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1570 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1571 | |
| 1572 | while (sector_num - bs_offset >= bs_sectors) { |
| 1573 | bs_i ++; |
| 1574 | assert (bs_i < bs_n); |
| 1575 | bs_offset += bs_sectors; |
| 1576 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 1577 | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, " |
| 1578 | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n", |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1579 | sector_num, bs_i, bs_offset, bs_sectors); */ |
| 1580 | } |
| 1581 | |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1582 | if ((out_baseimg || has_zero_init) && |
| 1583 | sector_num >= sector_num_next_status) { |
| 1584 | n = nb_sectors > INT_MAX ? INT_MAX : nb_sectors; |
| 1585 | ret = bdrv_get_block_status(bs[bs_i], sector_num - bs_offset, |
| 1586 | n, &n1); |
Paolo Bonzini | e4a86f8 | 2013-09-04 19:00:26 +0200 | [diff] [blame] | 1587 | if (ret < 0) { |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1588 | error_report("error while reading block status of sector %" |
| 1589 | PRId64 ": %s", sector_num - bs_offset, |
| 1590 | strerror(-ret)); |
Paolo Bonzini | e4a86f8 | 2013-09-04 19:00:26 +0200 | [diff] [blame] | 1591 | goto out; |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 1592 | } |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1593 | /* If the output image is zero initialized, we are not working |
| 1594 | * on a shared base and the input is zero we can skip the next |
| 1595 | * n1 sectors */ |
| 1596 | if (has_zero_init && !out_baseimg && (ret & BDRV_BLOCK_ZERO)) { |
Paolo Bonzini | e4a86f8 | 2013-09-04 19:00:26 +0200 | [diff] [blame] | 1597 | sector_num += n1; |
| 1598 | continue; |
| 1599 | } |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1600 | /* If the output image is being created as a copy on write |
| 1601 | * image, assume that sectors which are unallocated in the |
| 1602 | * input image are present in both the output's and input's |
| 1603 | * base images (no need to copy them). */ |
| 1604 | if (out_baseimg) { |
| 1605 | if (!(ret & BDRV_BLOCK_DATA)) { |
| 1606 | sector_num += n1; |
| 1607 | continue; |
| 1608 | } |
| 1609 | /* The next 'n1' sectors are allocated in the input image. |
| 1610 | * Copy only those as they may be followed by unallocated |
| 1611 | * sectors. */ |
| 1612 | nb_sectors = n1; |
| 1613 | } |
| 1614 | /* avoid redundant callouts to get_block_status */ |
| 1615 | sector_num_next_status = sector_num + n1; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1616 | } |
| 1617 | |
Peter Lieven | f2521c9 | 2013-11-27 11:07:06 +0100 | [diff] [blame] | 1618 | n = MIN(nb_sectors, bufsectors); |
Peter Lieven | 24f833c | 2013-11-27 11:07:07 +0100 | [diff] [blame] | 1619 | |
| 1620 | /* round down request length to an aligned sector, but |
| 1621 | * do not bother doing this on short requests. They happen |
| 1622 | * when we found an all-zero area, and the next sector to |
| 1623 | * write will not be sector_num + n. */ |
| 1624 | if (cluster_sectors > 0 && n >= cluster_sectors) { |
| 1625 | int64_t next_aligned_sector = (sector_num + n); |
| 1626 | next_aligned_sector -= next_aligned_sector % cluster_sectors; |
| 1627 | if (sector_num + n > next_aligned_sector) { |
| 1628 | n = next_aligned_sector - sector_num; |
| 1629 | } |
| 1630 | } |
| 1631 | |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1632 | n = MIN(n, bs_sectors - (sector_num - bs_offset)); |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1633 | |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1634 | sectors_read += n; |
| 1635 | if (count_allocated_sectors) { |
| 1636 | sector_num += n; |
| 1637 | continue; |
| 1638 | } |
| 1639 | |
| 1640 | n1 = n; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1641 | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
| 1642 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1643 | error_report("error while reading sector %" PRId64 ": %s", |
| 1644 | sector_num - bs_offset, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1645 | goto out; |
| 1646 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1647 | /* NOTE: at the same time we convert, we do not write zero |
| 1648 | sectors to have a chance to compress the image. Ideally, we |
| 1649 | should add a specific call to have the info to go faster */ |
| 1650 | buf1 = buf; |
| 1651 | while (n > 0) { |
Paolo Bonzini | 11212d8 | 2013-09-04 19:00:27 +0200 | [diff] [blame] | 1652 | if (!has_zero_init || |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1653 | is_allocated_sectors_min(buf1, n, &n1, min_sparse)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1654 | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
| 1655 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1656 | error_report("error while writing sector %" PRId64 |
| 1657 | ": %s", sector_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1658 | goto out; |
| 1659 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1660 | } |
| 1661 | sector_num += n1; |
| 1662 | n -= n1; |
| 1663 | buf1 += n1 * 512; |
| 1664 | } |
Peter Lieven | 802c3d4 | 2013-12-05 15:54:53 +0100 | [diff] [blame] | 1665 | qemu_progress_print(100.0 * sectors_read / sectors_to_read, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1666 | } |
| 1667 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1668 | out: |
Peter Lieven | 13c28af | 2013-11-27 11:07:01 +0100 | [diff] [blame] | 1669 | if (!ret) { |
| 1670 | qemu_progress_print(100, 0); |
| 1671 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1672 | qemu_progress_end(); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1673 | free_option_parameters(create_options); |
| 1674 | free_option_parameters(param); |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 1675 | qemu_vfree(buf); |
Kevin Wolf | 2dc8328 | 2014-02-21 16:24:05 +0100 | [diff] [blame] | 1676 | g_free(options); |
Wenchao Xia | ef80654 | 2013-12-04 17:10:57 +0800 | [diff] [blame] | 1677 | if (sn_opts) { |
| 1678 | qemu_opts_del(sn_opts); |
| 1679 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1680 | if (out_bs) { |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 1681 | bdrv_unref(out_bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1682 | } |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 1683 | if (bs) { |
| 1684 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
| 1685 | if (bs[bs_i]) { |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 1686 | bdrv_unref(bs[bs_i]); |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 1687 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1688 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1689 | g_free(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1690 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1691 | if (ret) { |
| 1692 | return 1; |
| 1693 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1694 | return 0; |
| 1695 | } |
| 1696 | |
bellard | 57d1a2b | 2004-08-03 21:15:11 +0000 | [diff] [blame] | 1697 | |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1698 | static void dump_snapshots(BlockDriverState *bs) |
| 1699 | { |
| 1700 | QEMUSnapshotInfo *sn_tab, *sn; |
| 1701 | int nb_sns, i; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1702 | |
| 1703 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| 1704 | if (nb_sns <= 0) |
| 1705 | return; |
| 1706 | printf("Snapshot list:\n"); |
Wenchao Xia | 5b91704 | 2013-05-25 11:09:45 +0800 | [diff] [blame] | 1707 | bdrv_snapshot_dump(fprintf, stdout, NULL); |
| 1708 | printf("\n"); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1709 | for(i = 0; i < nb_sns; i++) { |
| 1710 | sn = &sn_tab[i]; |
Wenchao Xia | 5b91704 | 2013-05-25 11:09:45 +0800 | [diff] [blame] | 1711 | bdrv_snapshot_dump(fprintf, stdout, sn); |
| 1712 | printf("\n"); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1713 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1714 | g_free(sn_tab); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1715 | } |
| 1716 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1717 | static void dump_json_image_info_list(ImageInfoList *list) |
| 1718 | { |
| 1719 | Error *errp = NULL; |
| 1720 | QString *str; |
| 1721 | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
| 1722 | QObject *obj; |
| 1723 | visit_type_ImageInfoList(qmp_output_get_visitor(ov), |
| 1724 | &list, NULL, &errp); |
| 1725 | obj = qmp_output_get_qobject(ov); |
| 1726 | str = qobject_to_json_pretty(obj); |
| 1727 | assert(str != NULL); |
| 1728 | printf("%s\n", qstring_get_str(str)); |
| 1729 | qobject_decref(obj); |
| 1730 | qmp_output_visitor_cleanup(ov); |
| 1731 | QDECREF(str); |
| 1732 | } |
| 1733 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1734 | static void dump_json_image_info(ImageInfo *info) |
| 1735 | { |
| 1736 | Error *errp = NULL; |
| 1737 | QString *str; |
| 1738 | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
| 1739 | QObject *obj; |
| 1740 | visit_type_ImageInfo(qmp_output_get_visitor(ov), |
| 1741 | &info, NULL, &errp); |
| 1742 | obj = qmp_output_get_qobject(ov); |
| 1743 | str = qobject_to_json_pretty(obj); |
| 1744 | assert(str != NULL); |
| 1745 | printf("%s\n", qstring_get_str(str)); |
| 1746 | qobject_decref(obj); |
| 1747 | qmp_output_visitor_cleanup(ov); |
| 1748 | QDECREF(str); |
| 1749 | } |
| 1750 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1751 | static void dump_human_image_info_list(ImageInfoList *list) |
| 1752 | { |
| 1753 | ImageInfoList *elem; |
| 1754 | bool delim = false; |
| 1755 | |
| 1756 | for (elem = list; elem; elem = elem->next) { |
| 1757 | if (delim) { |
| 1758 | printf("\n"); |
| 1759 | } |
| 1760 | delim = true; |
| 1761 | |
Wenchao Xia | 5b91704 | 2013-05-25 11:09:45 +0800 | [diff] [blame] | 1762 | bdrv_image_info_dump(fprintf, stdout, elem->value); |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1763 | } |
| 1764 | } |
| 1765 | |
| 1766 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) |
| 1767 | { |
| 1768 | return strcmp(a, b) == 0; |
| 1769 | } |
| 1770 | |
| 1771 | /** |
| 1772 | * Open an image file chain and return an ImageInfoList |
| 1773 | * |
| 1774 | * @filename: topmost image filename |
| 1775 | * @fmt: topmost image format (may be NULL to autodetect) |
| 1776 | * @chain: true - enumerate entire backing file chain |
| 1777 | * false - only topmost image file |
| 1778 | * |
| 1779 | * Returns a list of ImageInfo objects or NULL if there was an error opening an |
| 1780 | * image file. If there was an error a message will have been printed to |
| 1781 | * stderr. |
| 1782 | */ |
| 1783 | static ImageInfoList *collect_image_info_list(const char *filename, |
| 1784 | const char *fmt, |
| 1785 | bool chain) |
| 1786 | { |
| 1787 | ImageInfoList *head = NULL; |
| 1788 | ImageInfoList **last = &head; |
| 1789 | GHashTable *filenames; |
Wenchao Xia | 43526ec | 2013-06-06 12:27:58 +0800 | [diff] [blame] | 1790 | Error *err = NULL; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1791 | |
| 1792 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); |
| 1793 | |
| 1794 | while (filename) { |
| 1795 | BlockDriverState *bs; |
| 1796 | ImageInfo *info; |
| 1797 | ImageInfoList *elem; |
| 1798 | |
| 1799 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { |
| 1800 | error_report("Backing file '%s' creates an infinite loop.", |
| 1801 | filename); |
| 1802 | goto err; |
| 1803 | } |
| 1804 | g_hash_table_insert(filenames, (gpointer)filename, NULL); |
| 1805 | |
| 1806 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING, |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 1807 | false, false); |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1808 | if (!bs) { |
| 1809 | goto err; |
| 1810 | } |
| 1811 | |
Wenchao Xia | 43526ec | 2013-06-06 12:27:58 +0800 | [diff] [blame] | 1812 | bdrv_query_image_info(bs, &info, &err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 1813 | if (err) { |
Wenchao Xia | 43526ec | 2013-06-06 12:27:58 +0800 | [diff] [blame] | 1814 | error_report("%s", error_get_pretty(err)); |
| 1815 | error_free(err); |
| 1816 | goto err; |
Wenchao Xia | fb0ed45 | 2013-06-06 12:27:57 +0800 | [diff] [blame] | 1817 | } |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1818 | |
| 1819 | elem = g_new0(ImageInfoList, 1); |
| 1820 | elem->value = info; |
| 1821 | *last = elem; |
| 1822 | last = &elem->next; |
| 1823 | |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 1824 | bdrv_unref(bs); |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1825 | |
| 1826 | filename = fmt = NULL; |
| 1827 | if (chain) { |
| 1828 | if (info->has_full_backing_filename) { |
| 1829 | filename = info->full_backing_filename; |
| 1830 | } else if (info->has_backing_filename) { |
| 1831 | filename = info->backing_filename; |
| 1832 | } |
| 1833 | if (info->has_backing_filename_format) { |
| 1834 | fmt = info->backing_filename_format; |
| 1835 | } |
| 1836 | } |
| 1837 | } |
| 1838 | g_hash_table_destroy(filenames); |
| 1839 | return head; |
| 1840 | |
| 1841 | err: |
| 1842 | qapi_free_ImageInfoList(head); |
| 1843 | g_hash_table_destroy(filenames); |
| 1844 | return NULL; |
| 1845 | } |
| 1846 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1847 | static int img_info(int argc, char **argv) |
| 1848 | { |
| 1849 | int c; |
| 1850 | OutputFormat output_format = OFORMAT_HUMAN; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1851 | bool chain = false; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1852 | const char *filename, *fmt, *output; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1853 | ImageInfoList *list; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1854 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1855 | fmt = NULL; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1856 | output = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1857 | for(;;) { |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1858 | int option_index = 0; |
| 1859 | static const struct option long_options[] = { |
| 1860 | {"help", no_argument, 0, 'h'}, |
| 1861 | {"format", required_argument, 0, 'f'}, |
| 1862 | {"output", required_argument, 0, OPTION_OUTPUT}, |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1863 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1864 | {0, 0, 0, 0} |
| 1865 | }; |
| 1866 | c = getopt_long(argc, argv, "f:h", |
| 1867 | long_options, &option_index); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1868 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1869 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1870 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1871 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1872 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1873 | case 'h': |
| 1874 | help(); |
| 1875 | break; |
| 1876 | case 'f': |
| 1877 | fmt = optarg; |
| 1878 | break; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1879 | case OPTION_OUTPUT: |
| 1880 | output = optarg; |
| 1881 | break; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1882 | case OPTION_BACKING_CHAIN: |
| 1883 | chain = true; |
| 1884 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1885 | } |
| 1886 | } |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 1887 | if (optind != argc - 1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1888 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1889 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1890 | filename = argv[optind++]; |
| 1891 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1892 | if (output && !strcmp(output, "json")) { |
| 1893 | output_format = OFORMAT_JSON; |
| 1894 | } else if (output && !strcmp(output, "human")) { |
| 1895 | output_format = OFORMAT_HUMAN; |
| 1896 | } else if (output) { |
| 1897 | error_report("--output must be used with human or json as argument."); |
| 1898 | return 1; |
| 1899 | } |
| 1900 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1901 | list = collect_image_info_list(filename, fmt, chain); |
| 1902 | if (!list) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1903 | return 1; |
| 1904 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1905 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1906 | switch (output_format) { |
| 1907 | case OFORMAT_HUMAN: |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1908 | dump_human_image_info_list(list); |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1909 | break; |
| 1910 | case OFORMAT_JSON: |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1911 | if (chain) { |
| 1912 | dump_json_image_info_list(list); |
| 1913 | } else { |
| 1914 | dump_json_image_info(list->value); |
| 1915 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1916 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1917 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1918 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1919 | qapi_free_ImageInfoList(list); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1920 | return 0; |
| 1921 | } |
| 1922 | |
Paolo Bonzini | 4c93a13b | 2013-09-04 19:00:33 +0200 | [diff] [blame] | 1923 | |
| 1924 | typedef struct MapEntry { |
| 1925 | int flags; |
| 1926 | int depth; |
| 1927 | int64_t start; |
| 1928 | int64_t length; |
| 1929 | int64_t offset; |
| 1930 | BlockDriverState *bs; |
| 1931 | } MapEntry; |
| 1932 | |
| 1933 | static void dump_map_entry(OutputFormat output_format, MapEntry *e, |
| 1934 | MapEntry *next) |
| 1935 | { |
| 1936 | switch (output_format) { |
| 1937 | case OFORMAT_HUMAN: |
| 1938 | if ((e->flags & BDRV_BLOCK_DATA) && |
| 1939 | !(e->flags & BDRV_BLOCK_OFFSET_VALID)) { |
| 1940 | error_report("File contains external, encrypted or compressed clusters."); |
| 1941 | exit(1); |
| 1942 | } |
| 1943 | if ((e->flags & (BDRV_BLOCK_DATA|BDRV_BLOCK_ZERO)) == BDRV_BLOCK_DATA) { |
| 1944 | printf("%#-16"PRIx64"%#-16"PRIx64"%#-16"PRIx64"%s\n", |
| 1945 | e->start, e->length, e->offset, e->bs->filename); |
| 1946 | } |
| 1947 | /* This format ignores the distinction between 0, ZERO and ZERO|DATA. |
| 1948 | * Modify the flags here to allow more coalescing. |
| 1949 | */ |
| 1950 | if (next && |
| 1951 | (next->flags & (BDRV_BLOCK_DATA|BDRV_BLOCK_ZERO)) != BDRV_BLOCK_DATA) { |
| 1952 | next->flags &= ~BDRV_BLOCK_DATA; |
| 1953 | next->flags |= BDRV_BLOCK_ZERO; |
| 1954 | } |
| 1955 | break; |
| 1956 | case OFORMAT_JSON: |
| 1957 | printf("%s{ \"start\": %"PRId64", \"length\": %"PRId64", \"depth\": %d," |
| 1958 | " \"zero\": %s, \"data\": %s", |
| 1959 | (e->start == 0 ? "[" : ",\n"), |
| 1960 | e->start, e->length, e->depth, |
| 1961 | (e->flags & BDRV_BLOCK_ZERO) ? "true" : "false", |
| 1962 | (e->flags & BDRV_BLOCK_DATA) ? "true" : "false"); |
| 1963 | if (e->flags & BDRV_BLOCK_OFFSET_VALID) { |
Paolo Bonzini | c745bfb | 2013-09-11 18:47:52 +0200 | [diff] [blame] | 1964 | printf(", \"offset\": %"PRId64"", e->offset); |
Paolo Bonzini | 4c93a13b | 2013-09-04 19:00:33 +0200 | [diff] [blame] | 1965 | } |
| 1966 | putchar('}'); |
| 1967 | |
| 1968 | if (!next) { |
| 1969 | printf("]\n"); |
| 1970 | } |
| 1971 | break; |
| 1972 | } |
| 1973 | } |
| 1974 | |
| 1975 | static int get_block_status(BlockDriverState *bs, int64_t sector_num, |
| 1976 | int nb_sectors, MapEntry *e) |
| 1977 | { |
| 1978 | int64_t ret; |
| 1979 | int depth; |
| 1980 | |
| 1981 | /* As an optimization, we could cache the current range of unallocated |
| 1982 | * clusters in each file of the chain, and avoid querying the same |
| 1983 | * range repeatedly. |
| 1984 | */ |
| 1985 | |
| 1986 | depth = 0; |
| 1987 | for (;;) { |
| 1988 | ret = bdrv_get_block_status(bs, sector_num, nb_sectors, &nb_sectors); |
| 1989 | if (ret < 0) { |
| 1990 | return ret; |
| 1991 | } |
| 1992 | assert(nb_sectors); |
| 1993 | if (ret & (BDRV_BLOCK_ZERO|BDRV_BLOCK_DATA)) { |
| 1994 | break; |
| 1995 | } |
| 1996 | bs = bs->backing_hd; |
| 1997 | if (bs == NULL) { |
| 1998 | ret = 0; |
| 1999 | break; |
| 2000 | } |
| 2001 | |
| 2002 | depth++; |
| 2003 | } |
| 2004 | |
| 2005 | e->start = sector_num * BDRV_SECTOR_SIZE; |
| 2006 | e->length = nb_sectors * BDRV_SECTOR_SIZE; |
| 2007 | e->flags = ret & ~BDRV_BLOCK_OFFSET_MASK; |
| 2008 | e->offset = ret & BDRV_BLOCK_OFFSET_MASK; |
| 2009 | e->depth = depth; |
| 2010 | e->bs = bs; |
| 2011 | return 0; |
| 2012 | } |
| 2013 | |
| 2014 | static int img_map(int argc, char **argv) |
| 2015 | { |
| 2016 | int c; |
| 2017 | OutputFormat output_format = OFORMAT_HUMAN; |
| 2018 | BlockDriverState *bs; |
| 2019 | const char *filename, *fmt, *output; |
| 2020 | int64_t length; |
| 2021 | MapEntry curr = { .length = 0 }, next; |
| 2022 | int ret = 0; |
| 2023 | |
| 2024 | fmt = NULL; |
| 2025 | output = NULL; |
| 2026 | for (;;) { |
| 2027 | int option_index = 0; |
| 2028 | static const struct option long_options[] = { |
| 2029 | {"help", no_argument, 0, 'h'}, |
| 2030 | {"format", required_argument, 0, 'f'}, |
| 2031 | {"output", required_argument, 0, OPTION_OUTPUT}, |
| 2032 | {0, 0, 0, 0} |
| 2033 | }; |
| 2034 | c = getopt_long(argc, argv, "f:h", |
| 2035 | long_options, &option_index); |
| 2036 | if (c == -1) { |
| 2037 | break; |
| 2038 | } |
| 2039 | switch (c) { |
| 2040 | case '?': |
| 2041 | case 'h': |
| 2042 | help(); |
| 2043 | break; |
| 2044 | case 'f': |
| 2045 | fmt = optarg; |
| 2046 | break; |
| 2047 | case OPTION_OUTPUT: |
| 2048 | output = optarg; |
| 2049 | break; |
| 2050 | } |
| 2051 | } |
| 2052 | if (optind >= argc) { |
| 2053 | help(); |
| 2054 | } |
| 2055 | filename = argv[optind++]; |
| 2056 | |
| 2057 | if (output && !strcmp(output, "json")) { |
| 2058 | output_format = OFORMAT_JSON; |
| 2059 | } else if (output && !strcmp(output, "human")) { |
| 2060 | output_format = OFORMAT_HUMAN; |
| 2061 | } else if (output) { |
| 2062 | error_report("--output must be used with human or json as argument."); |
| 2063 | return 1; |
| 2064 | } |
| 2065 | |
| 2066 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS, true, false); |
| 2067 | if (!bs) { |
| 2068 | return 1; |
| 2069 | } |
| 2070 | |
| 2071 | if (output_format == OFORMAT_HUMAN) { |
| 2072 | printf("%-16s%-16s%-16s%s\n", "Offset", "Length", "Mapped to", "File"); |
| 2073 | } |
| 2074 | |
| 2075 | length = bdrv_getlength(bs); |
| 2076 | while (curr.start + curr.length < length) { |
| 2077 | int64_t nsectors_left; |
| 2078 | int64_t sector_num; |
| 2079 | int n; |
| 2080 | |
| 2081 | sector_num = (curr.start + curr.length) >> BDRV_SECTOR_BITS; |
| 2082 | |
| 2083 | /* Probe up to 1 GiB at a time. */ |
| 2084 | nsectors_left = DIV_ROUND_UP(length, BDRV_SECTOR_SIZE) - sector_num; |
| 2085 | n = MIN(1 << (30 - BDRV_SECTOR_BITS), nsectors_left); |
| 2086 | ret = get_block_status(bs, sector_num, n, &next); |
| 2087 | |
| 2088 | if (ret < 0) { |
| 2089 | error_report("Could not read file metadata: %s", strerror(-ret)); |
| 2090 | goto out; |
| 2091 | } |
| 2092 | |
| 2093 | if (curr.length != 0 && curr.flags == next.flags && |
| 2094 | curr.depth == next.depth && |
| 2095 | ((curr.flags & BDRV_BLOCK_OFFSET_VALID) == 0 || |
| 2096 | curr.offset + curr.length == next.offset)) { |
| 2097 | curr.length += next.length; |
| 2098 | continue; |
| 2099 | } |
| 2100 | |
| 2101 | if (curr.length > 0) { |
| 2102 | dump_map_entry(output_format, &curr, &next); |
| 2103 | } |
| 2104 | curr = next; |
| 2105 | } |
| 2106 | |
| 2107 | dump_map_entry(output_format, &curr, NULL); |
| 2108 | |
| 2109 | out: |
| 2110 | bdrv_unref(bs); |
| 2111 | return ret < 0; |
| 2112 | } |
| 2113 | |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2114 | #define SNAPSHOT_LIST 1 |
| 2115 | #define SNAPSHOT_CREATE 2 |
| 2116 | #define SNAPSHOT_APPLY 3 |
| 2117 | #define SNAPSHOT_DELETE 4 |
| 2118 | |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2119 | static int img_snapshot(int argc, char **argv) |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2120 | { |
| 2121 | BlockDriverState *bs; |
| 2122 | QEMUSnapshotInfo sn; |
| 2123 | char *filename, *snapshot_name = NULL; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2124 | int c, ret = 0, bdrv_oflags; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2125 | int action = 0; |
| 2126 | qemu_timeval tv; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2127 | bool quiet = false; |
Wenchao Xia | a89d89d | 2013-09-11 14:04:33 +0800 | [diff] [blame] | 2128 | Error *err = NULL; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2129 | |
Kevin Wolf | 710da70 | 2011-01-10 12:33:02 +0100 | [diff] [blame] | 2130 | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2131 | /* Parse commandline parameters */ |
| 2132 | for(;;) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2133 | c = getopt(argc, argv, "la:c:d:hq"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2134 | if (c == -1) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2135 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2136 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2137 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 2138 | case '?': |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2139 | case 'h': |
| 2140 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2141 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2142 | case 'l': |
| 2143 | if (action) { |
| 2144 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2145 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2146 | } |
| 2147 | action = SNAPSHOT_LIST; |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 2148 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2149 | break; |
| 2150 | case 'a': |
| 2151 | if (action) { |
| 2152 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2153 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2154 | } |
| 2155 | action = SNAPSHOT_APPLY; |
| 2156 | snapshot_name = optarg; |
| 2157 | break; |
| 2158 | case 'c': |
| 2159 | if (action) { |
| 2160 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2161 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2162 | } |
| 2163 | action = SNAPSHOT_CREATE; |
| 2164 | snapshot_name = optarg; |
| 2165 | break; |
| 2166 | case 'd': |
| 2167 | if (action) { |
| 2168 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2169 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2170 | } |
| 2171 | action = SNAPSHOT_DELETE; |
| 2172 | snapshot_name = optarg; |
| 2173 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2174 | case 'q': |
| 2175 | quiet = true; |
| 2176 | break; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2177 | } |
| 2178 | } |
| 2179 | |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 2180 | if (optind != argc - 1) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2181 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2182 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2183 | filename = argv[optind++]; |
| 2184 | |
| 2185 | /* Open the image */ |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2186 | bs = bdrv_new_open(filename, NULL, bdrv_oflags, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2187 | if (!bs) { |
| 2188 | return 1; |
| 2189 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2190 | |
| 2191 | /* Perform the requested action */ |
| 2192 | switch(action) { |
| 2193 | case SNAPSHOT_LIST: |
| 2194 | dump_snapshots(bs); |
| 2195 | break; |
| 2196 | |
| 2197 | case SNAPSHOT_CREATE: |
| 2198 | memset(&sn, 0, sizeof(sn)); |
| 2199 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); |
| 2200 | |
| 2201 | qemu_gettimeofday(&tv); |
| 2202 | sn.date_sec = tv.tv_sec; |
| 2203 | sn.date_nsec = tv.tv_usec * 1000; |
| 2204 | |
| 2205 | ret = bdrv_snapshot_create(bs, &sn); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2206 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2207 | error_report("Could not create snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2208 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2209 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2210 | break; |
| 2211 | |
| 2212 | case SNAPSHOT_APPLY: |
| 2213 | ret = bdrv_snapshot_goto(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2214 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2215 | error_report("Could not apply snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2216 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2217 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2218 | break; |
| 2219 | |
| 2220 | case SNAPSHOT_DELETE: |
Wenchao Xia | a89d89d | 2013-09-11 14:04:33 +0800 | [diff] [blame] | 2221 | bdrv_snapshot_delete_by_id_or_name(bs, snapshot_name, &err); |
Markus Armbruster | 84d18f0 | 2014-01-30 15:07:28 +0100 | [diff] [blame] | 2222 | if (err) { |
Wenchao Xia | a89d89d | 2013-09-11 14:04:33 +0800 | [diff] [blame] | 2223 | error_report("Could not delete snapshot '%s': (%s)", |
| 2224 | snapshot_name, error_get_pretty(err)); |
| 2225 | error_free(err); |
| 2226 | ret = 1; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2227 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2228 | break; |
| 2229 | } |
| 2230 | |
| 2231 | /* Cleanup */ |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 2232 | bdrv_unref(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2233 | if (ret) { |
| 2234 | return 1; |
| 2235 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2236 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 2237 | } |
| 2238 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2239 | static int img_rebase(int argc, char **argv) |
| 2240 | { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2241 | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 2242 | BlockDriver *old_backing_drv, *new_backing_drv; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2243 | char *filename; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 2244 | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2245 | int c, flags, ret; |
| 2246 | int unsafe = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2247 | int progress = 0; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2248 | bool quiet = false; |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 2249 | Error *local_err = NULL; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2250 | |
| 2251 | /* Parse commandline parameters */ |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 2252 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 2253 | cache = BDRV_DEFAULT_CACHE; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2254 | out_baseimg = NULL; |
| 2255 | out_basefmt = NULL; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2256 | for(;;) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2257 | c = getopt(argc, argv, "uhf:F:b:pt:q"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2258 | if (c == -1) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2259 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2260 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2261 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 2262 | case '?': |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2263 | case 'h': |
| 2264 | help(); |
| 2265 | return 0; |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 2266 | case 'f': |
| 2267 | fmt = optarg; |
| 2268 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2269 | case 'F': |
| 2270 | out_basefmt = optarg; |
| 2271 | break; |
| 2272 | case 'b': |
| 2273 | out_baseimg = optarg; |
| 2274 | break; |
| 2275 | case 'u': |
| 2276 | unsafe = 1; |
| 2277 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2278 | case 'p': |
| 2279 | progress = 1; |
| 2280 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 2281 | case 't': |
| 2282 | cache = optarg; |
| 2283 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2284 | case 'q': |
| 2285 | quiet = true; |
| 2286 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2287 | } |
| 2288 | } |
| 2289 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2290 | if (quiet) { |
| 2291 | progress = 0; |
| 2292 | } |
| 2293 | |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 2294 | if ((optind != argc - 1) || (!unsafe && !out_baseimg)) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2295 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 2296 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2297 | filename = argv[optind++]; |
| 2298 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2299 | qemu_progress_init(progress, 2.0); |
| 2300 | qemu_progress_print(0, 100); |
| 2301 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 2302 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 2303 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 2304 | if (ret < 0) { |
| 2305 | error_report("Invalid cache option: %s", cache); |
| 2306 | return -1; |
| 2307 | } |
| 2308 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2309 | /* |
| 2310 | * Open the images. |
| 2311 | * |
| 2312 | * Ignore the old backing file for unsafe rebase in case we want to correct |
| 2313 | * the reference to a renamed or moved backing file. |
| 2314 | */ |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2315 | bs = bdrv_new_open(filename, fmt, flags, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2316 | if (!bs) { |
| 2317 | return 1; |
| 2318 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2319 | |
| 2320 | /* Find the right drivers for the backing files */ |
| 2321 | old_backing_drv = NULL; |
| 2322 | new_backing_drv = NULL; |
| 2323 | |
| 2324 | if (!unsafe && bs->backing_format[0] != '\0') { |
| 2325 | old_backing_drv = bdrv_find_format(bs->backing_format); |
| 2326 | if (old_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2327 | error_report("Invalid format name: '%s'", bs->backing_format); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2328 | ret = -1; |
| 2329 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2330 | } |
| 2331 | } |
| 2332 | |
| 2333 | if (out_basefmt != NULL) { |
| 2334 | new_backing_drv = bdrv_find_format(out_basefmt); |
| 2335 | if (new_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2336 | error_report("Invalid format name: '%s'", out_basefmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2337 | ret = -1; |
| 2338 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2339 | } |
| 2340 | } |
| 2341 | |
| 2342 | /* For safe rebasing we need to compare old and new backing file */ |
| 2343 | if (unsafe) { |
| 2344 | /* Make the compiler happy */ |
| 2345 | bs_old_backing = NULL; |
| 2346 | bs_new_backing = NULL; |
| 2347 | } else { |
| 2348 | char backing_name[1024]; |
| 2349 | |
| 2350 | bs_old_backing = bdrv_new("old_backing"); |
| 2351 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
Max Reitz | ddf5636 | 2014-02-18 18:33:06 +0100 | [diff] [blame] | 2352 | ret = bdrv_open(&bs_old_backing, backing_name, NULL, NULL, BDRV_O_FLAGS, |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 2353 | old_backing_drv, &local_err); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2354 | if (ret) { |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 2355 | error_report("Could not open old backing file '%s': %s", |
| 2356 | backing_name, error_get_pretty(local_err)); |
| 2357 | error_free(local_err); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2358 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2359 | } |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2360 | if (out_baseimg[0]) { |
| 2361 | bs_new_backing = bdrv_new("new_backing"); |
Max Reitz | ddf5636 | 2014-02-18 18:33:06 +0100 | [diff] [blame] | 2362 | ret = bdrv_open(&bs_new_backing, out_baseimg, NULL, NULL, |
| 2363 | BDRV_O_FLAGS, new_backing_drv, &local_err); |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2364 | if (ret) { |
Max Reitz | 34b5d2c | 2013-09-05 14:45:29 +0200 | [diff] [blame] | 2365 | error_report("Could not open new backing file '%s': %s", |
| 2366 | out_baseimg, error_get_pretty(local_err)); |
| 2367 | error_free(local_err); |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2368 | goto out; |
| 2369 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2370 | } |
| 2371 | } |
| 2372 | |
| 2373 | /* |
| 2374 | * Check each unallocated cluster in the COW file. If it is unallocated, |
| 2375 | * accesses go to the backing file. We must therefore compare this cluster |
| 2376 | * in the old and new backing file, and if they differ we need to copy it |
| 2377 | * from the old backing file into the COW file. |
| 2378 | * |
| 2379 | * If qemu-img crashes during this step, no harm is done. The content of |
| 2380 | * the image is the same as the original one at any time. |
| 2381 | */ |
| 2382 | if (!unsafe) { |
| 2383 | uint64_t num_sectors; |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 2384 | uint64_t old_backing_num_sectors; |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2385 | uint64_t new_backing_num_sectors = 0; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2386 | uint64_t sector; |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 2387 | int n; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 2388 | uint8_t * buf_old; |
| 2389 | uint8_t * buf_new; |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 2390 | float local_progress = 0; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 2391 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 2392 | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
| 2393 | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2394 | |
| 2395 | bdrv_get_geometry(bs, &num_sectors); |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 2396 | bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors); |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2397 | if (bs_new_backing) { |
| 2398 | bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors); |
| 2399 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2400 | |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 2401 | if (num_sectors != 0) { |
| 2402 | local_progress = (float)100 / |
| 2403 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); |
| 2404 | } |
| 2405 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2406 | for (sector = 0; sector < num_sectors; sector += n) { |
| 2407 | |
| 2408 | /* How many sectors can we handle with the next read? */ |
| 2409 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
| 2410 | n = (IO_BUF_SIZE / 512); |
| 2411 | } else { |
| 2412 | n = num_sectors - sector; |
| 2413 | } |
| 2414 | |
| 2415 | /* If the cluster is allocated, we don't need to take action */ |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 2416 | ret = bdrv_is_allocated(bs, sector, n, &n); |
Paolo Bonzini | d663640 | 2013-09-04 19:00:25 +0200 | [diff] [blame] | 2417 | if (ret < 0) { |
| 2418 | error_report("error while reading image metadata: %s", |
| 2419 | strerror(-ret)); |
| 2420 | goto out; |
| 2421 | } |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 2422 | if (ret) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2423 | continue; |
| 2424 | } |
| 2425 | |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 2426 | /* |
| 2427 | * Read old and new backing file and take into consideration that |
| 2428 | * backing files may be smaller than the COW image. |
| 2429 | */ |
| 2430 | if (sector >= old_backing_num_sectors) { |
| 2431 | memset(buf_old, 0, n * BDRV_SECTOR_SIZE); |
| 2432 | } else { |
| 2433 | if (sector + n > old_backing_num_sectors) { |
| 2434 | n = old_backing_num_sectors - sector; |
| 2435 | } |
| 2436 | |
| 2437 | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
| 2438 | if (ret < 0) { |
| 2439 | error_report("error while reading from old backing file"); |
| 2440 | goto out; |
| 2441 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2442 | } |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 2443 | |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2444 | if (sector >= new_backing_num_sectors || !bs_new_backing) { |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 2445 | memset(buf_new, 0, n * BDRV_SECTOR_SIZE); |
| 2446 | } else { |
| 2447 | if (sector + n > new_backing_num_sectors) { |
| 2448 | n = new_backing_num_sectors - sector; |
| 2449 | } |
| 2450 | |
| 2451 | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
| 2452 | if (ret < 0) { |
| 2453 | error_report("error while reading from new backing file"); |
| 2454 | goto out; |
| 2455 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2456 | } |
| 2457 | |
| 2458 | /* If they differ, we need to write to the COW file */ |
| 2459 | uint64_t written = 0; |
| 2460 | |
| 2461 | while (written < n) { |
| 2462 | int pnum; |
| 2463 | |
| 2464 | if (compare_sectors(buf_old + written * 512, |
Kevin Wolf | 60b1bd4 | 2010-02-17 12:32:59 +0100 | [diff] [blame] | 2465 | buf_new + written * 512, n - written, &pnum)) |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2466 | { |
| 2467 | ret = bdrv_write(bs, sector + written, |
| 2468 | buf_old + written * 512, pnum); |
| 2469 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2470 | error_report("Error while writing to COW image: %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2471 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2472 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2473 | } |
| 2474 | } |
| 2475 | |
| 2476 | written += pnum; |
| 2477 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2478 | qemu_progress_print(local_progress, 100); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2479 | } |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 2480 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 2481 | qemu_vfree(buf_old); |
| 2482 | qemu_vfree(buf_new); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2483 | } |
| 2484 | |
| 2485 | /* |
| 2486 | * Change the backing file. All clusters that are different from the old |
| 2487 | * backing file are overwritten in the COW file now, so the visible content |
| 2488 | * doesn't change when we switch the backing file. |
| 2489 | */ |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 2490 | if (out_baseimg && *out_baseimg) { |
| 2491 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
| 2492 | } else { |
| 2493 | ret = bdrv_change_backing_file(bs, NULL, NULL); |
| 2494 | } |
| 2495 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2496 | if (ret == -ENOSPC) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2497 | error_report("Could not change the backing file to '%s': No " |
| 2498 | "space left in the file header", out_baseimg); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2499 | } else if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2500 | error_report("Could not change the backing file to '%s': %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2501 | out_baseimg, strerror(-ret)); |
| 2502 | } |
| 2503 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2504 | qemu_progress_print(100, 0); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2505 | /* |
| 2506 | * TODO At this point it is possible to check if any clusters that are |
| 2507 | * allocated in the COW file are the same in the backing file. If so, they |
| 2508 | * could be dropped from the COW file. Don't do this before switching the |
| 2509 | * backing file, in case of a crash this would lead to corruption. |
| 2510 | */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2511 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 2512 | qemu_progress_end(); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2513 | /* Cleanup */ |
| 2514 | if (!unsafe) { |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 2515 | if (bs_old_backing != NULL) { |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 2516 | bdrv_unref(bs_old_backing); |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 2517 | } |
| 2518 | if (bs_new_backing != NULL) { |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 2519 | bdrv_unref(bs_new_backing); |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 2520 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2521 | } |
| 2522 | |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 2523 | bdrv_unref(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2524 | if (ret) { |
| 2525 | return 1; |
| 2526 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 2527 | return 0; |
| 2528 | } |
| 2529 | |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2530 | static int img_resize(int argc, char **argv) |
| 2531 | { |
| 2532 | int c, ret, relative; |
| 2533 | const char *filename, *fmt, *size; |
| 2534 | int64_t n, total_size; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2535 | bool quiet = false; |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2536 | BlockDriverState *bs = NULL; |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 2537 | QemuOpts *param; |
| 2538 | static QemuOptsList resize_options = { |
| 2539 | .name = "resize_options", |
| 2540 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), |
| 2541 | .desc = { |
| 2542 | { |
| 2543 | .name = BLOCK_OPT_SIZE, |
| 2544 | .type = QEMU_OPT_SIZE, |
| 2545 | .help = "Virtual disk size" |
| 2546 | }, { |
| 2547 | /* end of list */ |
| 2548 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2549 | }, |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2550 | }; |
| 2551 | |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 2552 | /* Remove size from argv manually so that negative numbers are not treated |
| 2553 | * as options by getopt. */ |
| 2554 | if (argc < 3) { |
| 2555 | help(); |
| 2556 | return 1; |
| 2557 | } |
| 2558 | |
| 2559 | size = argv[--argc]; |
| 2560 | |
| 2561 | /* Parse getopt arguments */ |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2562 | fmt = NULL; |
| 2563 | for(;;) { |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2564 | c = getopt(argc, argv, "f:hq"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2565 | if (c == -1) { |
| 2566 | break; |
| 2567 | } |
| 2568 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 2569 | case '?': |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2570 | case 'h': |
| 2571 | help(); |
| 2572 | break; |
| 2573 | case 'f': |
| 2574 | fmt = optarg; |
| 2575 | break; |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2576 | case 'q': |
| 2577 | quiet = true; |
| 2578 | break; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2579 | } |
| 2580 | } |
Kevin Wolf | fc11eb2 | 2013-08-05 10:53:04 +0200 | [diff] [blame] | 2581 | if (optind != argc - 1) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2582 | help(); |
| 2583 | } |
| 2584 | filename = argv[optind++]; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2585 | |
| 2586 | /* Choose grow, shrink, or absolute resize mode */ |
| 2587 | switch (size[0]) { |
| 2588 | case '+': |
| 2589 | relative = 1; |
| 2590 | size++; |
| 2591 | break; |
| 2592 | case '-': |
| 2593 | relative = -1; |
| 2594 | size++; |
| 2595 | break; |
| 2596 | default: |
| 2597 | relative = 0; |
| 2598 | break; |
| 2599 | } |
| 2600 | |
| 2601 | /* Parse size */ |
Peter Crosthwaite | 87ea75d | 2014-01-01 18:49:17 -0800 | [diff] [blame] | 2602 | param = qemu_opts_create(&resize_options, NULL, 0, &error_abort); |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 2603 | if (qemu_opt_set(param, BLOCK_OPT_SIZE, size)) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2604 | /* Error message already printed when size parsing fails */ |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2605 | ret = -1; |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 2606 | qemu_opts_del(param); |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2607 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2608 | } |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 2609 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
| 2610 | qemu_opts_del(param); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2611 | |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2612 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2613 | if (!bs) { |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2614 | ret = -1; |
| 2615 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2616 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2617 | |
| 2618 | if (relative) { |
| 2619 | total_size = bdrv_getlength(bs) + n * relative; |
| 2620 | } else { |
| 2621 | total_size = n; |
| 2622 | } |
| 2623 | if (total_size <= 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2624 | error_report("New image size must be positive"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2625 | ret = -1; |
| 2626 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2627 | } |
| 2628 | |
| 2629 | ret = bdrv_truncate(bs, total_size); |
| 2630 | switch (ret) { |
| 2631 | case 0: |
Miroslav Rezanina | f382d43 | 2013-02-13 09:09:40 +0100 | [diff] [blame] | 2632 | qprintf(quiet, "Image resized.\n"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2633 | break; |
| 2634 | case -ENOTSUP: |
Kevin Wolf | 259b217 | 2012-03-06 12:44:45 +0100 | [diff] [blame] | 2635 | error_report("This image does not support resize"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2636 | break; |
| 2637 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2638 | error_report("Image is read-only"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2639 | break; |
| 2640 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 2641 | error_report("Error resizing image (%d)", -ret); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2642 | break; |
| 2643 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2644 | out: |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2645 | if (bs) { |
Fam Zheng | 4f6fd34 | 2013-08-23 09:14:47 +0800 | [diff] [blame] | 2646 | bdrv_unref(bs); |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 2647 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 2648 | if (ret) { |
| 2649 | return 1; |
| 2650 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 2651 | return 0; |
| 2652 | } |
| 2653 | |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2654 | static int img_amend(int argc, char **argv) |
| 2655 | { |
| 2656 | int c, ret = 0; |
| 2657 | char *options = NULL; |
| 2658 | QEMUOptionParameter *create_options = NULL, *options_param = NULL; |
| 2659 | const char *fmt = NULL, *filename; |
| 2660 | bool quiet = false; |
| 2661 | BlockDriverState *bs = NULL; |
| 2662 | |
| 2663 | for (;;) { |
| 2664 | c = getopt(argc, argv, "hqf:o:"); |
| 2665 | if (c == -1) { |
| 2666 | break; |
| 2667 | } |
| 2668 | |
| 2669 | switch (c) { |
| 2670 | case 'h': |
| 2671 | case '?': |
| 2672 | help(); |
| 2673 | break; |
| 2674 | case 'o': |
Kevin Wolf | 626f84f | 2014-02-21 16:24:06 +0100 | [diff] [blame] | 2675 | if (!is_valid_option_list(optarg)) { |
| 2676 | error_report("Invalid option list: %s", optarg); |
| 2677 | ret = -1; |
| 2678 | goto out; |
| 2679 | } |
| 2680 | if (!options) { |
| 2681 | options = g_strdup(optarg); |
| 2682 | } else { |
| 2683 | char *old_options = options; |
| 2684 | options = g_strdup_printf("%s,%s", options, optarg); |
| 2685 | g_free(old_options); |
| 2686 | } |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2687 | break; |
| 2688 | case 'f': |
| 2689 | fmt = optarg; |
| 2690 | break; |
| 2691 | case 'q': |
| 2692 | quiet = true; |
| 2693 | break; |
| 2694 | } |
| 2695 | } |
| 2696 | |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2697 | if (!options) { |
| 2698 | help(); |
| 2699 | } |
| 2700 | |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 2701 | filename = (optind == argc - 1) ? argv[argc - 1] : NULL; |
| 2702 | if (fmt && has_help_option(options)) { |
| 2703 | /* If a format is explicitly specified (and possibly no filename is |
| 2704 | * given), print option help here */ |
| 2705 | ret = print_block_option_help(filename, fmt); |
| 2706 | goto out; |
| 2707 | } |
| 2708 | |
| 2709 | if (optind != argc - 1) { |
| 2710 | help(); |
| 2711 | } |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2712 | |
| 2713 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, true, quiet); |
| 2714 | if (!bs) { |
| 2715 | error_report("Could not open image '%s'", filename); |
| 2716 | ret = -1; |
| 2717 | goto out; |
| 2718 | } |
| 2719 | |
| 2720 | fmt = bs->drv->format_name; |
| 2721 | |
Kevin Wolf | 626f84f | 2014-02-21 16:24:06 +0100 | [diff] [blame] | 2722 | if (has_help_option(options)) { |
Kevin Wolf | a283cb6 | 2014-02-21 16:24:07 +0100 | [diff] [blame^] | 2723 | /* If the format was auto-detected, print option help here */ |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2724 | ret = print_block_option_help(filename, fmt); |
| 2725 | goto out; |
| 2726 | } |
| 2727 | |
| 2728 | create_options = append_option_parameters(create_options, |
| 2729 | bs->drv->create_options); |
| 2730 | options_param = parse_option_parameters(options, create_options, |
| 2731 | options_param); |
| 2732 | if (options_param == NULL) { |
| 2733 | error_report("Invalid options for file format '%s'", fmt); |
| 2734 | ret = -1; |
| 2735 | goto out; |
| 2736 | } |
| 2737 | |
| 2738 | ret = bdrv_amend_options(bs, options_param); |
| 2739 | if (ret < 0) { |
| 2740 | error_report("Error while amending options: %s", strerror(-ret)); |
| 2741 | goto out; |
| 2742 | } |
| 2743 | |
| 2744 | out: |
| 2745 | if (bs) { |
| 2746 | bdrv_unref(bs); |
| 2747 | } |
| 2748 | free_option_parameters(create_options); |
| 2749 | free_option_parameters(options_param); |
Kevin Wolf | 626f84f | 2014-02-21 16:24:06 +0100 | [diff] [blame] | 2750 | g_free(options); |
| 2751 | |
Max Reitz | 6f176b4 | 2013-09-03 10:09:50 +0200 | [diff] [blame] | 2752 | if (ret) { |
| 2753 | return 1; |
| 2754 | } |
| 2755 | return 0; |
| 2756 | } |
| 2757 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2758 | static const img_cmd_t img_cmds[] = { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2759 | #define DEF(option, callback, arg_string) \ |
| 2760 | { option, callback }, |
| 2761 | #include "qemu-img-cmds.h" |
| 2762 | #undef DEF |
| 2763 | #undef GEN_DOCS |
| 2764 | { NULL, NULL, }, |
| 2765 | }; |
| 2766 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2767 | int main(int argc, char **argv) |
| 2768 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 2769 | const img_cmd_t *cmd; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2770 | const char *cmdname; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2771 | |
MORITA Kazutaka | 526eda1 | 2013-07-23 17:30:11 +0900 | [diff] [blame] | 2772 | #ifdef CONFIG_POSIX |
| 2773 | signal(SIGPIPE, SIG_IGN); |
| 2774 | #endif |
| 2775 | |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 2776 | error_set_progname(argv[0]); |
| 2777 | |
Paolo Bonzini | 2592c59 | 2012-11-03 18:10:17 +0100 | [diff] [blame] | 2778 | qemu_init_main_loop(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2779 | bdrv_init(); |
| 2780 | if (argc < 2) |
| 2781 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2782 | cmdname = argv[1]; |
aurel32 | 8f9b157 | 2009-02-09 18:14:31 +0000 | [diff] [blame] | 2783 | argc--; argv++; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2784 | |
| 2785 | /* find the command */ |
| 2786 | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
| 2787 | if (!strcmp(cmdname, cmd->name)) { |
| 2788 | return cmd->handler(argc, argv); |
| 2789 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2790 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2791 | |
| 2792 | /* not found */ |
| 2793 | help(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2794 | return 0; |
| 2795 | } |