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" |
| 26 | #include "qjson.h" |
pbrook | faf0796 | 2007-11-11 02:51:17 +0000 | [diff] [blame] | 27 | #include "qemu-common.h" |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 28 | #include "qemu-option.h" |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 29 | #include "qemu-error.h" |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 30 | #include "osdep.h" |
Jes Sorensen | dc786bc | 2010-10-26 10:39:23 +0200 | [diff] [blame] | 31 | #include "sysemu.h" |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 32 | #include "block_int.h" |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 33 | #include <getopt.h> |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 34 | #include <stdio.h> |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 35 | |
bellard | e844533 | 2006-06-14 15:32:10 +0000 | [diff] [blame] | 36 | #ifdef _WIN32 |
| 37 | #include <windows.h> |
| 38 | #endif |
| 39 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 40 | typedef struct img_cmd_t { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 41 | const char *name; |
| 42 | int (*handler)(int argc, char **argv); |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 43 | } img_cmd_t; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 44 | |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 45 | /* 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] | 46 | #define BDRV_O_FLAGS BDRV_O_CACHE_WB |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 47 | #define BDRV_DEFAULT_CACHE "writeback" |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 48 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 49 | static void format_print(void *opaque, const char *name) |
| 50 | { |
| 51 | printf(" %s", name); |
| 52 | } |
| 53 | |
blueswir1 | d2c639d | 2009-01-24 18:19:25 +0000 | [diff] [blame] | 54 | /* Please keep in synch with qemu-img.texi */ |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 55 | static void help(void) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 56 | { |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 57 | const char *help_msg = |
| 58 | "qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 59 | "usage: qemu-img command [command options]\n" |
| 60 | "QEMU disk image utility\n" |
| 61 | "\n" |
| 62 | "Command syntax:\n" |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 63 | #define DEF(option, callback, arg_string) \ |
| 64 | " " arg_string "\n" |
| 65 | #include "qemu-img-cmds.h" |
| 66 | #undef DEF |
| 67 | #undef GEN_DOCS |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 68 | "\n" |
| 69 | "Command parameters:\n" |
| 70 | " 'filename' is a disk image filename\n" |
| 71 | " '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] | 72 | " '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] | 73 | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n" |
| 74 | " 'directsync' and 'unsafe' (default for convert)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 75 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
| 76 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n" |
| 77 | " and T (terabyte, 1024G) are supported. 'b' is ignored.\n" |
| 78 | " 'output_filename' is the destination disk image filename\n" |
| 79 | " 'output_fmt' is the destination format\n" |
| 80 | " 'options' is a comma separated list of format specific options in a\n" |
| 81 | " name=value format. Use -o ? for an overview of the options supported by the\n" |
| 82 | " used format\n" |
| 83 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
| 84 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" |
| 85 | " match exactly. The image doesn't need a working backing file before\n" |
| 86 | " rebasing in this case (useful for renaming the backing file)\n" |
| 87 | " '-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] | 88 | " '-p' show progress of command (only certain commands)\n" |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 89 | " '-S' indicates the consecutive number of bytes that must contain only zeros\n" |
| 90 | " for qemu-img to create a sparse image during conversion\n" |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 91 | " '--output' takes the format in which the output must be done (human or json)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 92 | "\n" |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 93 | "Parameters to check subcommand:\n" |
| 94 | " '-r' tries to repair any inconsistencies that are found during the check.\n" |
| 95 | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n" |
| 96 | " 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] | 97 | " hiding corruption that has already occurred.\n" |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 98 | "\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 99 | "Parameters to snapshot subcommand:\n" |
| 100 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" |
| 101 | " '-a' applies a snapshot (revert disk to saved state)\n" |
| 102 | " '-c' creates a snapshot\n" |
| 103 | " '-d' deletes a snapshot\n" |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 104 | " '-l' lists all snapshots in the given image\n"; |
| 105 | |
| 106 | printf("%s\nSupported formats:", help_msg); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 107 | bdrv_iterate_format(format_print, NULL); |
| 108 | printf("\n"); |
| 109 | exit(1); |
| 110 | } |
| 111 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 112 | #if defined(WIN32) |
| 113 | /* XXX: put correct support for win32 */ |
| 114 | static int read_password(char *buf, int buf_size) |
| 115 | { |
| 116 | int c, i; |
| 117 | printf("Password: "); |
| 118 | fflush(stdout); |
| 119 | i = 0; |
| 120 | for(;;) { |
| 121 | c = getchar(); |
| 122 | if (c == '\n') |
| 123 | break; |
| 124 | if (i < (buf_size - 1)) |
| 125 | buf[i++] = c; |
| 126 | } |
| 127 | buf[i] = '\0'; |
| 128 | return 0; |
| 129 | } |
| 130 | |
| 131 | #else |
| 132 | |
| 133 | #include <termios.h> |
| 134 | |
| 135 | static struct termios oldtty; |
| 136 | |
| 137 | static void term_exit(void) |
| 138 | { |
| 139 | tcsetattr (0, TCSANOW, &oldtty); |
| 140 | } |
| 141 | |
| 142 | static void term_init(void) |
| 143 | { |
| 144 | struct termios tty; |
| 145 | |
| 146 | tcgetattr (0, &tty); |
| 147 | oldtty = tty; |
| 148 | |
| 149 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 150 | |INLCR|IGNCR|ICRNL|IXON); |
| 151 | tty.c_oflag |= OPOST; |
| 152 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 153 | tty.c_cflag &= ~(CSIZE|PARENB); |
| 154 | tty.c_cflag |= CS8; |
| 155 | tty.c_cc[VMIN] = 1; |
| 156 | tty.c_cc[VTIME] = 0; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 157 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 158 | tcsetattr (0, TCSANOW, &tty); |
| 159 | |
| 160 | atexit(term_exit); |
| 161 | } |
| 162 | |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 163 | static int read_password(char *buf, int buf_size) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 164 | { |
| 165 | uint8_t ch; |
| 166 | int i, ret; |
| 167 | |
| 168 | printf("password: "); |
| 169 | fflush(stdout); |
| 170 | term_init(); |
| 171 | i = 0; |
| 172 | for(;;) { |
| 173 | ret = read(0, &ch, 1); |
| 174 | if (ret == -1) { |
| 175 | if (errno == EAGAIN || errno == EINTR) { |
| 176 | continue; |
| 177 | } else { |
| 178 | ret = -1; |
| 179 | break; |
| 180 | } |
| 181 | } else if (ret == 0) { |
| 182 | ret = -1; |
| 183 | break; |
| 184 | } else { |
| 185 | if (ch == '\r') { |
| 186 | ret = 0; |
| 187 | break; |
| 188 | } |
| 189 | if (i < (buf_size - 1)) |
| 190 | buf[i++] = ch; |
| 191 | } |
| 192 | } |
| 193 | term_exit(); |
| 194 | buf[i] = '\0'; |
| 195 | printf("\n"); |
| 196 | return ret; |
| 197 | } |
| 198 | #endif |
| 199 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 200 | static int print_block_option_help(const char *filename, const char *fmt) |
| 201 | { |
| 202 | BlockDriver *drv, *proto_drv; |
| 203 | QEMUOptionParameter *create_options = NULL; |
| 204 | |
| 205 | /* Find driver and parse its options */ |
| 206 | drv = bdrv_find_format(fmt); |
| 207 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 208 | error_report("Unknown file format '%s'", fmt); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 209 | return 1; |
| 210 | } |
| 211 | |
| 212 | proto_drv = bdrv_find_protocol(filename); |
| 213 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 214 | error_report("Unknown protocol '%s'", filename); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 215 | return 1; |
| 216 | } |
| 217 | |
| 218 | create_options = append_option_parameters(create_options, |
| 219 | drv->create_options); |
| 220 | create_options = append_option_parameters(create_options, |
| 221 | proto_drv->create_options); |
| 222 | print_option_help(create_options); |
| 223 | free_option_parameters(create_options); |
| 224 | return 0; |
| 225 | } |
| 226 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 227 | static BlockDriverState *bdrv_new_open(const char *filename, |
Sheng Yang | 9bc378c | 2010-01-29 10:15:06 +0800 | [diff] [blame] | 228 | const char *fmt, |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 229 | int flags, |
| 230 | bool require_io) |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 231 | { |
| 232 | BlockDriverState *bs; |
| 233 | BlockDriver *drv; |
| 234 | char password[256]; |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 235 | int ret; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 236 | |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 237 | bs = bdrv_new("image"); |
Kevin Wolf | ad71713 | 2010-12-16 15:37:41 +0100 | [diff] [blame] | 238 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 239 | if (fmt) { |
| 240 | drv = bdrv_find_format(fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 241 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 242 | error_report("Unknown file format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 243 | goto fail; |
| 244 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 245 | } else { |
| 246 | drv = NULL; |
| 247 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 248 | |
| 249 | ret = bdrv_open(bs, filename, flags, drv); |
| 250 | if (ret < 0) { |
| 251 | error_report("Could not open '%s': %s", filename, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 252 | goto fail; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 253 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 254 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 255 | if (bdrv_is_encrypted(bs) && require_io) { |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 256 | printf("Disk image '%s' is encrypted.\n", filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 257 | if (read_password(password, sizeof(password)) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 258 | error_report("No password given"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 259 | goto fail; |
| 260 | } |
| 261 | if (bdrv_set_key(bs, password) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 262 | error_report("invalid password"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 263 | goto fail; |
| 264 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 265 | } |
| 266 | return bs; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 267 | fail: |
| 268 | if (bs) { |
| 269 | bdrv_delete(bs); |
| 270 | } |
| 271 | return NULL; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 272 | } |
| 273 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 274 | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 275 | const char *base_filename, |
| 276 | const char *base_fmt) |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 277 | { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 278 | if (base_filename) { |
| 279 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 280 | error_report("Backing file not supported for file format '%s'", |
| 281 | fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 282 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 283 | } |
| 284 | } |
| 285 | if (base_fmt) { |
| 286 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 287 | error_report("Backing file format not supported for file " |
| 288 | "format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 289 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 290 | } |
| 291 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 292 | return 0; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 293 | } |
| 294 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 295 | static int img_create(int argc, char **argv) |
| 296 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 297 | int c, ret = 0; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 298 | uint64_t img_size = -1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 299 | const char *fmt = "raw"; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 300 | const char *base_fmt = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 301 | const char *filename; |
| 302 | const char *base_filename = NULL; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 303 | char *options = NULL; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 304 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 305 | for(;;) { |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 306 | c = getopt(argc, argv, "F:b:f:he6o:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 307 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 308 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 309 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 310 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 311 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 312 | case 'h': |
| 313 | help(); |
| 314 | break; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 315 | case 'F': |
| 316 | base_fmt = optarg; |
| 317 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 318 | case 'b': |
| 319 | base_filename = optarg; |
| 320 | break; |
| 321 | case 'f': |
| 322 | fmt = optarg; |
| 323 | break; |
| 324 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 325 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 326 | "encryption\' instead!"); |
| 327 | return 1; |
ths | d8871c5 | 2007-10-24 16:11:42 +0000 | [diff] [blame] | 328 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 329 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 330 | "compat6\' instead!"); |
| 331 | return 1; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 332 | case 'o': |
| 333 | options = optarg; |
| 334 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 335 | } |
| 336 | } |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 337 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 338 | /* Get the filename */ |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 339 | if (optind >= argc) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 340 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 341 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 342 | filename = argv[optind++]; |
| 343 | |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 344 | /* Get image size, if specified */ |
| 345 | if (optind < argc) { |
Jes Sorensen | 70b4f4b | 2011-01-05 11:41:02 +0100 | [diff] [blame] | 346 | int64_t sval; |
Markus Armbruster | e36b369 | 2011-11-22 09:46:05 +0100 | [diff] [blame] | 347 | char *end; |
| 348 | sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B); |
| 349 | if (sval < 0 || *end) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 350 | error_report("Invalid image size specified! You may use k, M, G or " |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 351 | "T suffixes for "); |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 352 | error_report("kilobytes, megabytes, gigabytes and terabytes."); |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 353 | ret = -1; |
| 354 | goto out; |
| 355 | } |
| 356 | img_size = (uint64_t)sval; |
| 357 | } |
| 358 | |
Peter Maydell | c8057f9 | 2012-08-02 13:45:54 +0100 | [diff] [blame] | 359 | if (options && is_help_option(options)) { |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 360 | ret = print_block_option_help(filename, fmt); |
| 361 | goto out; |
| 362 | } |
| 363 | |
Jes Sorensen | f88e1a4 | 2010-12-16 13:52:15 +0100 | [diff] [blame] | 364 | ret = bdrv_img_create(filename, fmt, base_filename, base_fmt, |
| 365 | options, img_size, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 366 | out: |
| 367 | if (ret) { |
| 368 | return 1; |
| 369 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 370 | return 0; |
| 371 | } |
| 372 | |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 373 | /* |
| 374 | * Checks an image for consistency. Exit codes: |
| 375 | * |
| 376 | * 0 - Check completed, image is good |
| 377 | * 1 - Check not completed because of internal errors |
| 378 | * 2 - Check completed, image is corrupted |
| 379 | * 3 - Check completed, image has leaked clusters, but is good otherwise |
| 380 | */ |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 381 | static int img_check(int argc, char **argv) |
| 382 | { |
| 383 | int c, ret; |
| 384 | const char *filename, *fmt; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 385 | BlockDriverState *bs; |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 386 | BdrvCheckResult result; |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 387 | int fix = 0; |
Stefan Hajnoczi | 058f8f1 | 2012-08-09 13:05:56 +0100 | [diff] [blame] | 388 | int flags = BDRV_O_FLAGS | BDRV_O_CHECK; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 389 | |
| 390 | fmt = NULL; |
| 391 | for(;;) { |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 392 | c = getopt(argc, argv, "f:hr:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 393 | if (c == -1) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 394 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 395 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 396 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 397 | case '?': |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 398 | case 'h': |
| 399 | help(); |
| 400 | break; |
| 401 | case 'f': |
| 402 | fmt = optarg; |
| 403 | break; |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 404 | case 'r': |
| 405 | flags |= BDRV_O_RDWR; |
| 406 | |
| 407 | if (!strcmp(optarg, "leaks")) { |
| 408 | fix = BDRV_FIX_LEAKS; |
| 409 | } else if (!strcmp(optarg, "all")) { |
| 410 | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; |
| 411 | } else { |
| 412 | help(); |
| 413 | } |
| 414 | break; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 415 | } |
| 416 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 417 | if (optind >= argc) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 418 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 419 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 420 | filename = argv[optind++]; |
| 421 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 422 | bs = bdrv_new_open(filename, fmt, flags, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 423 | if (!bs) { |
| 424 | return 1; |
| 425 | } |
Kevin Wolf | 4534ff5 | 2012-05-11 16:07:02 +0200 | [diff] [blame] | 426 | ret = bdrv_check(bs, &result, fix); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 427 | |
| 428 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 429 | error_report("This image format does not support checks"); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 430 | bdrv_delete(bs); |
| 431 | return 1; |
| 432 | } |
| 433 | |
Kevin Wolf | ccf3471 | 2012-05-11 18:16:54 +0200 | [diff] [blame] | 434 | if (result.corruptions_fixed || result.leaks_fixed) { |
| 435 | printf("The following inconsistencies were found and repaired:\n\n" |
| 436 | " %d leaked clusters\n" |
| 437 | " %d corruptions\n\n" |
| 438 | "Double checking the fixed image now...\n", |
| 439 | result.leaks_fixed, |
| 440 | result.corruptions_fixed); |
| 441 | ret = bdrv_check(bs, &result, 0); |
| 442 | } |
| 443 | |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 444 | if (!(result.corruptions || result.leaks || result.check_errors)) { |
| 445 | printf("No errors were found on the image.\n"); |
| 446 | } else { |
| 447 | if (result.corruptions) { |
| 448 | printf("\n%d errors were found on the image.\n" |
| 449 | "Data may be corrupted, or further writes to the image " |
| 450 | "may corrupt it.\n", |
| 451 | result.corruptions); |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 452 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 453 | |
| 454 | if (result.leaks) { |
| 455 | printf("\n%d leaked clusters were found on the image.\n" |
| 456 | "This means waste of disk space, but no harm to data.\n", |
| 457 | result.leaks); |
| 458 | } |
| 459 | |
| 460 | if (result.check_errors) { |
| 461 | printf("\n%d internal errors have occurred during the check.\n", |
| 462 | result.check_errors); |
| 463 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 464 | } |
| 465 | |
Dong Xu Wang | f8111c2 | 2012-03-15 20:13:31 +0800 | [diff] [blame] | 466 | if (result.bfi.total_clusters != 0 && result.bfi.allocated_clusters != 0) { |
| 467 | printf("%" PRId64 "/%" PRId64 "= %0.2f%% allocated, %0.2f%% fragmented\n", |
| 468 | result.bfi.allocated_clusters, result.bfi.total_clusters, |
| 469 | result.bfi.allocated_clusters * 100.0 / result.bfi.total_clusters, |
| 470 | result.bfi.fragmented_clusters * 100.0 / result.bfi.allocated_clusters); |
| 471 | } |
| 472 | |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 473 | bdrv_delete(bs); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 474 | |
| 475 | if (ret < 0 || result.check_errors) { |
| 476 | printf("\nAn error has occurred during the check: %s\n" |
| 477 | "The check is not complete and may have missed error.\n", |
| 478 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 479 | return 1; |
| 480 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 481 | |
| 482 | if (result.corruptions) { |
| 483 | return 2; |
| 484 | } else if (result.leaks) { |
| 485 | return 3; |
| 486 | } else { |
| 487 | return 0; |
| 488 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 489 | } |
| 490 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 491 | static int img_commit(int argc, char **argv) |
| 492 | { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 493 | int c, ret, flags; |
| 494 | const char *filename, *fmt, *cache; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 495 | BlockDriverState *bs; |
| 496 | |
| 497 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 498 | cache = BDRV_DEFAULT_CACHE; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 499 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 500 | c = getopt(argc, argv, "f:ht:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 501 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 502 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 503 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 504 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 505 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 506 | case 'h': |
| 507 | help(); |
| 508 | break; |
| 509 | case 'f': |
| 510 | fmt = optarg; |
| 511 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 512 | case 't': |
| 513 | cache = optarg; |
| 514 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 515 | } |
| 516 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 517 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 518 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 519 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 520 | filename = argv[optind++]; |
| 521 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 522 | flags = BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 523 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 524 | if (ret < 0) { |
| 525 | error_report("Invalid cache option: %s", cache); |
| 526 | return -1; |
| 527 | } |
| 528 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 529 | bs = bdrv_new_open(filename, fmt, flags, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 530 | if (!bs) { |
| 531 | return 1; |
| 532 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 533 | ret = bdrv_commit(bs); |
| 534 | switch(ret) { |
| 535 | case 0: |
| 536 | printf("Image committed.\n"); |
| 537 | break; |
| 538 | case -ENOENT: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 539 | error_report("No disk inserted"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 540 | break; |
| 541 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 542 | error_report("Image is read-only"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 543 | break; |
| 544 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 545 | error_report("Image is already committed"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 546 | break; |
| 547 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 548 | error_report("Error while committing image"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 549 | break; |
| 550 | } |
| 551 | |
| 552 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 553 | if (ret) { |
| 554 | return 1; |
| 555 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 556 | return 0; |
| 557 | } |
| 558 | |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 559 | /* |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 560 | * Returns true iff the first sector pointed to by 'buf' contains at least |
| 561 | * a non-NUL byte. |
| 562 | * |
| 563 | * 'pnum' is set to the number of sectors (including and immediately following |
| 564 | * the first one) that are known to be in the same allocated/unallocated state. |
| 565 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 566 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
| 567 | { |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 568 | bool is_zero; |
| 569 | int i; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 570 | |
| 571 | if (n <= 0) { |
| 572 | *pnum = 0; |
| 573 | return 0; |
| 574 | } |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 575 | is_zero = buffer_is_zero(buf, 512); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 576 | for(i = 1; i < n; i++) { |
| 577 | buf += 512; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 578 | if (is_zero != buffer_is_zero(buf, 512)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 579 | break; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 580 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 581 | } |
| 582 | *pnum = i; |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 583 | return !is_zero; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 584 | } |
| 585 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 586 | /* |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 587 | * Like is_allocated_sectors, but if the buffer starts with a used sector, |
| 588 | * up to 'min' consecutive sectors containing zeros are ignored. This avoids |
| 589 | * breaking up write requests for only small sparse areas. |
| 590 | */ |
| 591 | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, |
| 592 | int min) |
| 593 | { |
| 594 | int ret; |
| 595 | int num_checked, num_used; |
| 596 | |
| 597 | if (n < min) { |
| 598 | min = n; |
| 599 | } |
| 600 | |
| 601 | ret = is_allocated_sectors(buf, n, pnum); |
| 602 | if (!ret) { |
| 603 | return ret; |
| 604 | } |
| 605 | |
| 606 | num_used = *pnum; |
| 607 | buf += BDRV_SECTOR_SIZE * *pnum; |
| 608 | n -= *pnum; |
| 609 | num_checked = num_used; |
| 610 | |
| 611 | while (n > 0) { |
| 612 | ret = is_allocated_sectors(buf, n, pnum); |
| 613 | |
| 614 | buf += BDRV_SECTOR_SIZE * *pnum; |
| 615 | n -= *pnum; |
| 616 | num_checked += *pnum; |
| 617 | if (ret) { |
| 618 | num_used = num_checked; |
| 619 | } else if (*pnum >= min) { |
| 620 | break; |
| 621 | } |
| 622 | } |
| 623 | |
| 624 | *pnum = num_used; |
| 625 | return 1; |
| 626 | } |
| 627 | |
| 628 | /* |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 629 | * Compares two buffers sector by sector. Returns 0 if the first sector of both |
| 630 | * buffers matches, non-zero otherwise. |
| 631 | * |
| 632 | * pnum is set to the number of sectors (including and immediately following |
| 633 | * the first one) that are known to have the same comparison result |
| 634 | */ |
| 635 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
| 636 | int *pnum) |
| 637 | { |
| 638 | int res, i; |
| 639 | |
| 640 | if (n <= 0) { |
| 641 | *pnum = 0; |
| 642 | return 0; |
| 643 | } |
| 644 | |
| 645 | res = !!memcmp(buf1, buf2, 512); |
| 646 | for(i = 1; i < n; i++) { |
| 647 | buf1 += 512; |
| 648 | buf2 += 512; |
| 649 | |
| 650 | if (!!memcmp(buf1, buf2, 512) != res) { |
| 651 | break; |
| 652 | } |
| 653 | } |
| 654 | |
| 655 | *pnum = i; |
| 656 | return res; |
| 657 | } |
| 658 | |
Kevin Wolf | 80ee15a | 2009-09-15 12:30:43 +0200 | [diff] [blame] | 659 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 660 | |
| 661 | static int img_convert(int argc, char **argv) |
| 662 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 663 | int c, ret = 0, n, n1, bs_n, bs_i, compress, cluster_size, cluster_sectors; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 664 | int progress = 0, flags; |
| 665 | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 666 | BlockDriver *drv, *proto_drv; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 667 | BlockDriverState **bs = NULL, *out_bs = NULL; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 668 | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
| 669 | uint64_t bs_sectors; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 670 | uint8_t * buf = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 671 | const uint8_t *buf1; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 672 | BlockDriverInfo bdi; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 673 | QEMUOptionParameter *param = NULL, *create_options = NULL; |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 674 | QEMUOptionParameter *out_baseimg_param; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 675 | char *options = NULL; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 676 | const char *snapshot_name = NULL; |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 677 | float local_progress = 0; |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 678 | int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 679 | |
| 680 | fmt = NULL; |
| 681 | out_fmt = "raw"; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 682 | cache = "unsafe"; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 683 | out_baseimg = NULL; |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 684 | compress = 0; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 685 | for(;;) { |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 686 | c = getopt(argc, argv, "f:O:B:s:hce6o:pS:t:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 687 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 688 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 689 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 690 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 691 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 692 | case 'h': |
| 693 | help(); |
| 694 | break; |
| 695 | case 'f': |
| 696 | fmt = optarg; |
| 697 | break; |
| 698 | case 'O': |
| 699 | out_fmt = optarg; |
| 700 | break; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 701 | case 'B': |
| 702 | out_baseimg = optarg; |
| 703 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 704 | case 'c': |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 705 | compress = 1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 706 | break; |
| 707 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 708 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 709 | "encryption\' instead!"); |
| 710 | return 1; |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 711 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 712 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 713 | "compat6\' instead!"); |
| 714 | return 1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 715 | case 'o': |
| 716 | options = optarg; |
| 717 | break; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 718 | case 's': |
| 719 | snapshot_name = optarg; |
| 720 | break; |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 721 | case 'S': |
| 722 | { |
| 723 | int64_t sval; |
Markus Armbruster | e36b369 | 2011-11-22 09:46:05 +0100 | [diff] [blame] | 724 | char *end; |
| 725 | sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B); |
| 726 | if (sval < 0 || *end) { |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 727 | error_report("Invalid minimum zero buffer size for sparse output specified"); |
| 728 | return 1; |
| 729 | } |
| 730 | |
| 731 | min_sparse = sval / BDRV_SECTOR_SIZE; |
| 732 | break; |
| 733 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 734 | case 'p': |
| 735 | progress = 1; |
| 736 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 737 | case 't': |
| 738 | cache = optarg; |
| 739 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 740 | } |
| 741 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 742 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 743 | bs_n = argc - optind - 1; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 744 | if (bs_n < 1) { |
| 745 | help(); |
| 746 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 747 | |
| 748 | out_filename = argv[argc - 1]; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 749 | |
Charles Arnold | fa170c1 | 2012-05-11 10:57:54 -0600 | [diff] [blame] | 750 | /* Initialize before goto out */ |
| 751 | qemu_progress_init(progress, 2.0); |
| 752 | |
Peter Maydell | c8057f9 | 2012-08-02 13:45:54 +0100 | [diff] [blame] | 753 | if (options && is_help_option(options)) { |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 754 | ret = print_block_option_help(out_filename, out_fmt); |
| 755 | goto out; |
| 756 | } |
| 757 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 758 | if (bs_n > 1 && out_baseimg) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 759 | error_report("-B makes no sense when concatenating multiple input " |
| 760 | "images"); |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 761 | ret = -1; |
| 762 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 763 | } |
Dong Xu Wang | f8111c2 | 2012-03-15 20:13:31 +0800 | [diff] [blame] | 764 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 765 | qemu_progress_print(0, 100); |
| 766 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 767 | bs = g_malloc0(bs_n * sizeof(BlockDriverState *)); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 768 | |
| 769 | total_sectors = 0; |
| 770 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 771 | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt, BDRV_O_FLAGS, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 772 | if (!bs[bs_i]) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 773 | error_report("Could not open '%s'", argv[optind + bs_i]); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 774 | ret = -1; |
| 775 | goto out; |
| 776 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 777 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 778 | total_sectors += bs_sectors; |
| 779 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 780 | |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 781 | if (snapshot_name != NULL) { |
| 782 | if (bs_n > 1) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 783 | error_report("No support for concatenating multiple snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 784 | ret = -1; |
| 785 | goto out; |
| 786 | } |
| 787 | if (bdrv_snapshot_load_tmp(bs[0], snapshot_name) < 0) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 788 | error_report("Failed to load snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 789 | ret = -1; |
| 790 | goto out; |
| 791 | } |
| 792 | } |
| 793 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 794 | /* Find driver and parse its options */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 795 | drv = bdrv_find_format(out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 796 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 797 | error_report("Unknown file format '%s'", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 798 | ret = -1; |
| 799 | goto out; |
| 800 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 801 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 802 | proto_drv = bdrv_find_protocol(out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 803 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 804 | error_report("Unknown protocol '%s'", out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 805 | ret = -1; |
| 806 | goto out; |
| 807 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 808 | |
| 809 | create_options = append_option_parameters(create_options, |
| 810 | drv->create_options); |
| 811 | create_options = append_option_parameters(create_options, |
| 812 | proto_drv->create_options); |
Kevin Wolf | db08adf | 2009-06-04 15:39:38 +0200 | [diff] [blame] | 813 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 814 | if (options) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 815 | param = parse_option_parameters(options, create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 816 | if (param == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 817 | error_report("Invalid options for file format '%s'.", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 818 | ret = -1; |
| 819 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 820 | } |
| 821 | } else { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 822 | param = parse_option_parameters("", create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 823 | } |
| 824 | |
| 825 | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512); |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 826 | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 827 | if (ret < 0) { |
| 828 | goto out; |
| 829 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 830 | |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 831 | /* Get backing file name if -o backing_file was used */ |
| 832 | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
| 833 | if (out_baseimg_param) { |
| 834 | out_baseimg = out_baseimg_param->value.s; |
| 835 | } |
| 836 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 837 | /* Check if compression is supported */ |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 838 | if (compress) { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 839 | QEMUOptionParameter *encryption = |
| 840 | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
Kevin Wolf | 41521fa | 2011-10-18 16:19:42 +0200 | [diff] [blame] | 841 | QEMUOptionParameter *preallocation = |
| 842 | get_option_parameter(param, BLOCK_OPT_PREALLOC); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 843 | |
| 844 | if (!drv->bdrv_write_compressed) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 845 | error_report("Compression not supported for this file format"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 846 | ret = -1; |
| 847 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 848 | } |
| 849 | |
| 850 | if (encryption && encryption->value.n) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 851 | error_report("Compression and encryption not supported at " |
| 852 | "the same time"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 853 | ret = -1; |
| 854 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 855 | } |
Kevin Wolf | 41521fa | 2011-10-18 16:19:42 +0200 | [diff] [blame] | 856 | |
| 857 | if (preallocation && preallocation->value.s |
| 858 | && strcmp(preallocation->value.s, "off")) |
| 859 | { |
| 860 | error_report("Compression and preallocation not supported at " |
| 861 | "the same time"); |
| 862 | ret = -1; |
| 863 | goto out; |
| 864 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 865 | } |
| 866 | |
| 867 | /* Create the new image */ |
| 868 | ret = bdrv_create(drv, out_filename, param); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 869 | if (ret < 0) { |
| 870 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 871 | error_report("Formatting not supported for file format '%s'", |
| 872 | out_fmt); |
aurel32 | 6e9ea0c | 2009-04-15 14:42:46 +0000 | [diff] [blame] | 873 | } else if (ret == -EFBIG) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 874 | error_report("The image size is too large for file format '%s'", |
| 875 | out_fmt); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 876 | } else { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 877 | error_report("%s: error while converting %s: %s", |
| 878 | out_filename, out_fmt, strerror(-ret)); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 879 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 880 | goto out; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 881 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 882 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 883 | flags = BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 884 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 885 | if (ret < 0) { |
| 886 | error_report("Invalid cache option: %s", cache); |
| 887 | return -1; |
| 888 | } |
| 889 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 890 | out_bs = bdrv_new_open(out_filename, out_fmt, flags, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 891 | if (!out_bs) { |
| 892 | ret = -1; |
| 893 | goto out; |
| 894 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 895 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 896 | bs_i = 0; |
| 897 | bs_offset = 0; |
| 898 | bdrv_get_geometry(bs[0], &bs_sectors); |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 899 | buf = qemu_blockalign(out_bs, IO_BUF_SIZE); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 900 | |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 901 | if (compress) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 902 | ret = bdrv_get_info(out_bs, &bdi); |
| 903 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 904 | error_report("could not get block driver info"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 905 | goto out; |
| 906 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 907 | cluster_size = bdi.cluster_size; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 908 | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 909 | error_report("invalid cluster size"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 910 | ret = -1; |
| 911 | goto out; |
| 912 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 913 | cluster_sectors = cluster_size >> 9; |
| 914 | sector_num = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 915 | |
| 916 | nb_sectors = total_sectors; |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 917 | if (nb_sectors != 0) { |
| 918 | local_progress = (float)100 / |
| 919 | (nb_sectors / MIN(nb_sectors, cluster_sectors)); |
| 920 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 921 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 922 | for(;;) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 923 | int64_t bs_num; |
| 924 | int remainder; |
| 925 | uint8_t *buf2; |
| 926 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 927 | nb_sectors = total_sectors - sector_num; |
| 928 | if (nb_sectors <= 0) |
| 929 | break; |
| 930 | if (nb_sectors >= cluster_sectors) |
| 931 | n = cluster_sectors; |
| 932 | else |
| 933 | n = nb_sectors; |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 934 | |
| 935 | bs_num = sector_num - bs_offset; |
| 936 | assert (bs_num >= 0); |
| 937 | remainder = n; |
| 938 | buf2 = buf; |
| 939 | while (remainder > 0) { |
| 940 | int nlow; |
| 941 | while (bs_num == bs_sectors) { |
| 942 | bs_i++; |
| 943 | assert (bs_i < bs_n); |
| 944 | bs_offset += bs_sectors; |
| 945 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 946 | bs_num = 0; |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 947 | /* printf("changing part: sector_num=%" PRId64 ", " |
| 948 | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64 |
| 949 | "\n", sector_num, bs_i, bs_offset, bs_sectors); */ |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 950 | } |
| 951 | assert (bs_num < bs_sectors); |
| 952 | |
| 953 | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
| 954 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 955 | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
| 956 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 957 | error_report("error while reading sector %" PRId64 ": %s", |
| 958 | bs_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 959 | goto out; |
| 960 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 961 | |
| 962 | buf2 += nlow * 512; |
| 963 | bs_num += nlow; |
| 964 | |
| 965 | remainder -= nlow; |
| 966 | } |
| 967 | assert (remainder == 0); |
| 968 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 969 | if (n < cluster_sectors) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 970 | memset(buf + n * 512, 0, cluster_size - n * 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 971 | } |
Stefan Hajnoczi | 1a6d39f | 2012-02-07 13:27:24 +0000 | [diff] [blame] | 972 | if (!buffer_is_zero(buf, cluster_size)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 973 | ret = bdrv_write_compressed(out_bs, sector_num, buf, |
| 974 | cluster_sectors); |
| 975 | if (ret != 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 976 | error_report("error while compressing sector %" PRId64 |
| 977 | ": %s", sector_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 978 | goto out; |
| 979 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 980 | } |
| 981 | sector_num += n; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 982 | qemu_progress_print(local_progress, 100); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 983 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 984 | /* signal EOF to align */ |
| 985 | bdrv_write_compressed(out_bs, 0, NULL, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 986 | } else { |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 987 | int has_zero_init = bdrv_has_zero_init(out_bs); |
| 988 | |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 989 | sector_num = 0; // total number of sectors converted so far |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 990 | nb_sectors = total_sectors - sector_num; |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 991 | if (nb_sectors != 0) { |
| 992 | local_progress = (float)100 / |
| 993 | (nb_sectors / MIN(nb_sectors, IO_BUF_SIZE / 512)); |
| 994 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 995 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 996 | for(;;) { |
| 997 | nb_sectors = total_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 998 | if (nb_sectors <= 0) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 999 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1000 | } |
| 1001 | if (nb_sectors >= (IO_BUF_SIZE / 512)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1002 | n = (IO_BUF_SIZE / 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1003 | } else { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1004 | n = nb_sectors; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1005 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1006 | |
| 1007 | while (sector_num - bs_offset >= bs_sectors) { |
| 1008 | bs_i ++; |
| 1009 | assert (bs_i < bs_n); |
| 1010 | bs_offset += bs_sectors; |
| 1011 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 1012 | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, " |
| 1013 | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n", |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1014 | sector_num, bs_i, bs_offset, bs_sectors); */ |
| 1015 | } |
| 1016 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1017 | if (n > bs_offset + bs_sectors - sector_num) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1018 | n = bs_offset + bs_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1019 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 1020 | |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 1021 | if (has_zero_init) { |
Akkarit Sangpetch | d032044 | 2009-07-17 10:02:15 +0200 | [diff] [blame] | 1022 | /* If the output image is being created as a copy on write image, |
| 1023 | assume that sectors which are unallocated in the input image |
| 1024 | are present in both the output's and input's base images (no |
| 1025 | need to copy them). */ |
| 1026 | if (out_baseimg) { |
| 1027 | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, |
| 1028 | n, &n1)) { |
| 1029 | sector_num += n1; |
| 1030 | continue; |
| 1031 | } |
| 1032 | /* The next 'n1' sectors are allocated in the input image. Copy |
| 1033 | only those as they may be followed by unallocated sectors. */ |
| 1034 | n = n1; |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 1035 | } |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 1036 | } else { |
| 1037 | n1 = n; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1038 | } |
| 1039 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1040 | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
| 1041 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1042 | error_report("error while reading sector %" PRId64 ": %s", |
| 1043 | sector_num - bs_offset, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1044 | goto out; |
| 1045 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1046 | /* NOTE: at the same time we convert, we do not write zero |
| 1047 | sectors to have a chance to compress the image. Ideally, we |
| 1048 | should add a specific call to have the info to go faster */ |
| 1049 | buf1 = buf; |
| 1050 | while (n > 0) { |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 1051 | /* If the output image is being created as a copy on write image, |
| 1052 | copy all sectors even the ones containing only NUL bytes, |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 1053 | because they may differ from the sectors in the base image. |
| 1054 | |
| 1055 | If the output is to a host device, we also write out |
| 1056 | sectors that are entirely 0, since whatever data was |
| 1057 | already there is garbage, not 0s. */ |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 1058 | if (!has_zero_init || out_baseimg || |
Kevin Wolf | a22f123 | 2011-08-26 15:27:13 +0200 | [diff] [blame] | 1059 | is_allocated_sectors_min(buf1, n, &n1, min_sparse)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1060 | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
| 1061 | if (ret < 0) { |
Stefan Hajnoczi | 3fba9d8 | 2011-08-17 17:41:09 +0100 | [diff] [blame] | 1062 | error_report("error while writing sector %" PRId64 |
| 1063 | ": %s", sector_num, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1064 | goto out; |
| 1065 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1066 | } |
| 1067 | sector_num += n1; |
| 1068 | n -= n1; |
| 1069 | buf1 += n1 * 512; |
| 1070 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1071 | qemu_progress_print(local_progress, 100); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1072 | } |
| 1073 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1074 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1075 | qemu_progress_end(); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1076 | free_option_parameters(create_options); |
| 1077 | free_option_parameters(param); |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 1078 | qemu_vfree(buf); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1079 | if (out_bs) { |
| 1080 | bdrv_delete(out_bs); |
| 1081 | } |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 1082 | if (bs) { |
| 1083 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
| 1084 | if (bs[bs_i]) { |
| 1085 | bdrv_delete(bs[bs_i]); |
| 1086 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1087 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1088 | g_free(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1089 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1090 | if (ret) { |
| 1091 | return 1; |
| 1092 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1093 | return 0; |
| 1094 | } |
| 1095 | |
bellard | 57d1a2b | 2004-08-03 21:15:11 +0000 | [diff] [blame] | 1096 | |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1097 | static void dump_snapshots(BlockDriverState *bs) |
| 1098 | { |
| 1099 | QEMUSnapshotInfo *sn_tab, *sn; |
| 1100 | int nb_sns, i; |
| 1101 | char buf[256]; |
| 1102 | |
| 1103 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| 1104 | if (nb_sns <= 0) |
| 1105 | return; |
| 1106 | printf("Snapshot list:\n"); |
| 1107 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
| 1108 | for(i = 0; i < nb_sns; i++) { |
| 1109 | sn = &sn_tab[i]; |
| 1110 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
| 1111 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1112 | g_free(sn_tab); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1113 | } |
| 1114 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1115 | static void dump_json_image_info_list(ImageInfoList *list) |
| 1116 | { |
| 1117 | Error *errp = NULL; |
| 1118 | QString *str; |
| 1119 | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
| 1120 | QObject *obj; |
| 1121 | visit_type_ImageInfoList(qmp_output_get_visitor(ov), |
| 1122 | &list, NULL, &errp); |
| 1123 | obj = qmp_output_get_qobject(ov); |
| 1124 | str = qobject_to_json_pretty(obj); |
| 1125 | assert(str != NULL); |
| 1126 | printf("%s\n", qstring_get_str(str)); |
| 1127 | qobject_decref(obj); |
| 1128 | qmp_output_visitor_cleanup(ov); |
| 1129 | QDECREF(str); |
| 1130 | } |
| 1131 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1132 | static void collect_snapshots(BlockDriverState *bs , ImageInfo *info) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1133 | { |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1134 | int i, sn_count; |
| 1135 | QEMUSnapshotInfo *sn_tab = NULL; |
| 1136 | SnapshotInfoList *info_list, *cur_item = NULL; |
| 1137 | sn_count = bdrv_snapshot_list(bs, &sn_tab); |
| 1138 | |
| 1139 | for (i = 0; i < sn_count; i++) { |
| 1140 | info->has_snapshots = true; |
| 1141 | info_list = g_new0(SnapshotInfoList, 1); |
| 1142 | |
| 1143 | info_list->value = g_new0(SnapshotInfo, 1); |
| 1144 | info_list->value->id = g_strdup(sn_tab[i].id_str); |
| 1145 | info_list->value->name = g_strdup(sn_tab[i].name); |
| 1146 | info_list->value->vm_state_size = sn_tab[i].vm_state_size; |
| 1147 | info_list->value->date_sec = sn_tab[i].date_sec; |
| 1148 | info_list->value->date_nsec = sn_tab[i].date_nsec; |
| 1149 | info_list->value->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000; |
| 1150 | info_list->value->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000; |
| 1151 | |
| 1152 | /* XXX: waiting for the qapi to support qemu-queue.h types */ |
| 1153 | if (!cur_item) { |
| 1154 | info->snapshots = cur_item = info_list; |
| 1155 | } else { |
| 1156 | cur_item->next = info_list; |
| 1157 | cur_item = info_list; |
| 1158 | } |
| 1159 | |
| 1160 | } |
| 1161 | |
| 1162 | g_free(sn_tab); |
| 1163 | } |
| 1164 | |
| 1165 | static void dump_json_image_info(ImageInfo *info) |
| 1166 | { |
| 1167 | Error *errp = NULL; |
| 1168 | QString *str; |
| 1169 | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
| 1170 | QObject *obj; |
| 1171 | visit_type_ImageInfo(qmp_output_get_visitor(ov), |
| 1172 | &info, NULL, &errp); |
| 1173 | obj = qmp_output_get_qobject(ov); |
| 1174 | str = qobject_to_json_pretty(obj); |
| 1175 | assert(str != NULL); |
| 1176 | printf("%s\n", qstring_get_str(str)); |
| 1177 | qobject_decref(obj); |
| 1178 | qmp_output_visitor_cleanup(ov); |
| 1179 | QDECREF(str); |
| 1180 | } |
| 1181 | |
| 1182 | static void collect_image_info(BlockDriverState *bs, |
| 1183 | ImageInfo *info, |
| 1184 | const char *filename, |
| 1185 | const char *fmt) |
| 1186 | { |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 1187 | uint64_t total_sectors; |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1188 | char backing_filename[1024]; |
| 1189 | char backing_filename2[1024]; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1190 | BlockDriverInfo bdi; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1191 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1192 | bdrv_get_geometry(bs, &total_sectors); |
| 1193 | |
| 1194 | info->filename = g_strdup(filename); |
| 1195 | info->format = g_strdup(bdrv_get_format_name(bs)); |
| 1196 | info->virtual_size = total_sectors * 512; |
| 1197 | info->actual_size = bdrv_get_allocated_file_size(bs); |
| 1198 | info->has_actual_size = info->actual_size >= 0; |
| 1199 | if (bdrv_is_encrypted(bs)) { |
| 1200 | info->encrypted = true; |
| 1201 | info->has_encrypted = true; |
| 1202 | } |
| 1203 | if (bdrv_get_info(bs, &bdi) >= 0) { |
| 1204 | if (bdi.cluster_size != 0) { |
| 1205 | info->cluster_size = bdi.cluster_size; |
| 1206 | info->has_cluster_size = true; |
| 1207 | } |
| 1208 | info->dirty_flag = bdi.is_dirty; |
| 1209 | info->has_dirty_flag = true; |
| 1210 | } |
| 1211 | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename)); |
| 1212 | if (backing_filename[0] != '\0') { |
| 1213 | info->backing_filename = g_strdup(backing_filename); |
| 1214 | info->has_backing_filename = true; |
| 1215 | bdrv_get_full_backing_filename(bs, backing_filename2, |
| 1216 | sizeof(backing_filename2)); |
| 1217 | |
| 1218 | if (strcmp(backing_filename, backing_filename2) != 0) { |
| 1219 | info->full_backing_filename = |
| 1220 | g_strdup(backing_filename2); |
| 1221 | info->has_full_backing_filename = true; |
| 1222 | } |
| 1223 | |
| 1224 | if (bs->backing_format[0]) { |
| 1225 | info->backing_filename_format = g_strdup(bs->backing_format); |
| 1226 | info->has_backing_filename_format = true; |
| 1227 | } |
| 1228 | } |
| 1229 | } |
| 1230 | |
| 1231 | static void dump_human_image_info(ImageInfo *info) |
| 1232 | { |
| 1233 | char size_buf[128], dsize_buf[128]; |
| 1234 | if (!info->has_actual_size) { |
| 1235 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
| 1236 | } else { |
| 1237 | get_human_readable_size(dsize_buf, sizeof(dsize_buf), |
| 1238 | info->actual_size); |
| 1239 | } |
| 1240 | get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size); |
| 1241 | printf("image: %s\n" |
| 1242 | "file format: %s\n" |
| 1243 | "virtual size: %s (%" PRId64 " bytes)\n" |
| 1244 | "disk size: %s\n", |
| 1245 | info->filename, info->format, size_buf, |
| 1246 | info->virtual_size, |
| 1247 | dsize_buf); |
| 1248 | |
| 1249 | if (info->has_encrypted && info->encrypted) { |
| 1250 | printf("encrypted: yes\n"); |
| 1251 | } |
| 1252 | |
| 1253 | if (info->has_cluster_size) { |
| 1254 | printf("cluster_size: %" PRId64 "\n", info->cluster_size); |
| 1255 | } |
| 1256 | |
| 1257 | if (info->has_dirty_flag && info->dirty_flag) { |
| 1258 | printf("cleanly shut down: no\n"); |
| 1259 | } |
| 1260 | |
| 1261 | if (info->has_backing_filename) { |
| 1262 | printf("backing file: %s", info->backing_filename); |
| 1263 | if (info->has_full_backing_filename) { |
| 1264 | printf(" (actual path: %s)", info->full_backing_filename); |
| 1265 | } |
| 1266 | putchar('\n'); |
| 1267 | if (info->has_backing_filename_format) { |
| 1268 | printf("backing file format: %s\n", info->backing_filename_format); |
| 1269 | } |
| 1270 | } |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1271 | |
| 1272 | if (info->has_snapshots) { |
| 1273 | SnapshotInfoList *elem; |
| 1274 | char buf[256]; |
| 1275 | |
| 1276 | printf("Snapshot list:\n"); |
| 1277 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
| 1278 | |
| 1279 | /* Ideally bdrv_snapshot_dump() would operate on SnapshotInfoList but |
| 1280 | * we convert to the block layer's native QEMUSnapshotInfo for now. |
| 1281 | */ |
| 1282 | for (elem = info->snapshots; elem; elem = elem->next) { |
| 1283 | QEMUSnapshotInfo sn = { |
| 1284 | .vm_state_size = elem->value->vm_state_size, |
| 1285 | .date_sec = elem->value->date_sec, |
| 1286 | .date_nsec = elem->value->date_nsec, |
| 1287 | .vm_clock_nsec = elem->value->vm_clock_sec * 1000000000ULL + |
| 1288 | elem->value->vm_clock_nsec, |
| 1289 | }; |
| 1290 | |
| 1291 | pstrcpy(sn.id_str, sizeof(sn.id_str), elem->value->id); |
| 1292 | pstrcpy(sn.name, sizeof(sn.name), elem->value->name); |
| 1293 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), &sn)); |
| 1294 | } |
| 1295 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1296 | } |
| 1297 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1298 | static void dump_human_image_info_list(ImageInfoList *list) |
| 1299 | { |
| 1300 | ImageInfoList *elem; |
| 1301 | bool delim = false; |
| 1302 | |
| 1303 | for (elem = list; elem; elem = elem->next) { |
| 1304 | if (delim) { |
| 1305 | printf("\n"); |
| 1306 | } |
| 1307 | delim = true; |
| 1308 | |
| 1309 | dump_human_image_info(elem->value); |
| 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | static gboolean str_equal_func(gconstpointer a, gconstpointer b) |
| 1314 | { |
| 1315 | return strcmp(a, b) == 0; |
| 1316 | } |
| 1317 | |
| 1318 | /** |
| 1319 | * Open an image file chain and return an ImageInfoList |
| 1320 | * |
| 1321 | * @filename: topmost image filename |
| 1322 | * @fmt: topmost image format (may be NULL to autodetect) |
| 1323 | * @chain: true - enumerate entire backing file chain |
| 1324 | * false - only topmost image file |
| 1325 | * |
| 1326 | * Returns a list of ImageInfo objects or NULL if there was an error opening an |
| 1327 | * image file. If there was an error a message will have been printed to |
| 1328 | * stderr. |
| 1329 | */ |
| 1330 | static ImageInfoList *collect_image_info_list(const char *filename, |
| 1331 | const char *fmt, |
| 1332 | bool chain) |
| 1333 | { |
| 1334 | ImageInfoList *head = NULL; |
| 1335 | ImageInfoList **last = &head; |
| 1336 | GHashTable *filenames; |
| 1337 | |
| 1338 | filenames = g_hash_table_new_full(g_str_hash, str_equal_func, NULL, NULL); |
| 1339 | |
| 1340 | while (filename) { |
| 1341 | BlockDriverState *bs; |
| 1342 | ImageInfo *info; |
| 1343 | ImageInfoList *elem; |
| 1344 | |
| 1345 | if (g_hash_table_lookup_extended(filenames, filename, NULL, NULL)) { |
| 1346 | error_report("Backing file '%s' creates an infinite loop.", |
| 1347 | filename); |
| 1348 | goto err; |
| 1349 | } |
| 1350 | g_hash_table_insert(filenames, (gpointer)filename, NULL); |
| 1351 | |
| 1352 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING, |
| 1353 | false); |
| 1354 | if (!bs) { |
| 1355 | goto err; |
| 1356 | } |
| 1357 | |
| 1358 | info = g_new0(ImageInfo, 1); |
| 1359 | collect_image_info(bs, info, filename, fmt); |
| 1360 | collect_snapshots(bs, info); |
| 1361 | |
| 1362 | elem = g_new0(ImageInfoList, 1); |
| 1363 | elem->value = info; |
| 1364 | *last = elem; |
| 1365 | last = &elem->next; |
| 1366 | |
| 1367 | bdrv_delete(bs); |
| 1368 | |
| 1369 | filename = fmt = NULL; |
| 1370 | if (chain) { |
| 1371 | if (info->has_full_backing_filename) { |
| 1372 | filename = info->full_backing_filename; |
| 1373 | } else if (info->has_backing_filename) { |
| 1374 | filename = info->backing_filename; |
| 1375 | } |
| 1376 | if (info->has_backing_filename_format) { |
| 1377 | fmt = info->backing_filename_format; |
| 1378 | } |
| 1379 | } |
| 1380 | } |
| 1381 | g_hash_table_destroy(filenames); |
| 1382 | return head; |
| 1383 | |
| 1384 | err: |
| 1385 | qapi_free_ImageInfoList(head); |
| 1386 | g_hash_table_destroy(filenames); |
| 1387 | return NULL; |
| 1388 | } |
| 1389 | |
| 1390 | enum { |
| 1391 | OPTION_OUTPUT = 256, |
| 1392 | OPTION_BACKING_CHAIN = 257, |
| 1393 | }; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1394 | |
| 1395 | typedef enum OutputFormat { |
| 1396 | OFORMAT_JSON, |
| 1397 | OFORMAT_HUMAN, |
| 1398 | } OutputFormat; |
| 1399 | |
| 1400 | static int img_info(int argc, char **argv) |
| 1401 | { |
| 1402 | int c; |
| 1403 | OutputFormat output_format = OFORMAT_HUMAN; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1404 | bool chain = false; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1405 | const char *filename, *fmt, *output; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1406 | ImageInfoList *list; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1407 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1408 | fmt = NULL; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1409 | output = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1410 | for(;;) { |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1411 | int option_index = 0; |
| 1412 | static const struct option long_options[] = { |
| 1413 | {"help", no_argument, 0, 'h'}, |
| 1414 | {"format", required_argument, 0, 'f'}, |
| 1415 | {"output", required_argument, 0, OPTION_OUTPUT}, |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1416 | {"backing-chain", no_argument, 0, OPTION_BACKING_CHAIN}, |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1417 | {0, 0, 0, 0} |
| 1418 | }; |
| 1419 | c = getopt_long(argc, argv, "f:h", |
| 1420 | long_options, &option_index); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1421 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1422 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1423 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1424 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1425 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1426 | case 'h': |
| 1427 | help(); |
| 1428 | break; |
| 1429 | case 'f': |
| 1430 | fmt = optarg; |
| 1431 | break; |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1432 | case OPTION_OUTPUT: |
| 1433 | output = optarg; |
| 1434 | break; |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1435 | case OPTION_BACKING_CHAIN: |
| 1436 | chain = true; |
| 1437 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1438 | } |
| 1439 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1440 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1441 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1442 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1443 | filename = argv[optind++]; |
| 1444 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1445 | if (output && !strcmp(output, "json")) { |
| 1446 | output_format = OFORMAT_JSON; |
| 1447 | } else if (output && !strcmp(output, "human")) { |
| 1448 | output_format = OFORMAT_HUMAN; |
| 1449 | } else if (output) { |
| 1450 | error_report("--output must be used with human or json as argument."); |
| 1451 | return 1; |
| 1452 | } |
| 1453 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1454 | list = collect_image_info_list(filename, fmt, chain); |
| 1455 | if (!list) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1456 | return 1; |
| 1457 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1458 | |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1459 | switch (output_format) { |
| 1460 | case OFORMAT_HUMAN: |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1461 | dump_human_image_info_list(list); |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1462 | break; |
| 1463 | case OFORMAT_JSON: |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1464 | if (chain) { |
| 1465 | dump_json_image_info_list(list); |
| 1466 | } else { |
| 1467 | dump_json_image_info(list->value); |
| 1468 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1469 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1470 | } |
Benoît Canet | c054b3f | 2012-09-05 13:09:02 +0200 | [diff] [blame] | 1471 | |
Stefan Hajnoczi | 9699bf0 | 2012-10-17 14:02:31 +0200 | [diff] [blame] | 1472 | qapi_free_ImageInfoList(list); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1473 | return 0; |
| 1474 | } |
| 1475 | |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1476 | #define SNAPSHOT_LIST 1 |
| 1477 | #define SNAPSHOT_CREATE 2 |
| 1478 | #define SNAPSHOT_APPLY 3 |
| 1479 | #define SNAPSHOT_DELETE 4 |
| 1480 | |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1481 | static int img_snapshot(int argc, char **argv) |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1482 | { |
| 1483 | BlockDriverState *bs; |
| 1484 | QEMUSnapshotInfo sn; |
| 1485 | char *filename, *snapshot_name = NULL; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1486 | int c, ret = 0, bdrv_oflags; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1487 | int action = 0; |
| 1488 | qemu_timeval tv; |
| 1489 | |
Kevin Wolf | 710da70 | 2011-01-10 12:33:02 +0100 | [diff] [blame] | 1490 | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1491 | /* Parse commandline parameters */ |
| 1492 | for(;;) { |
| 1493 | c = getopt(argc, argv, "la:c:d:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1494 | if (c == -1) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1495 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1496 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1497 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1498 | case '?': |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1499 | case 'h': |
| 1500 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1501 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1502 | case 'l': |
| 1503 | if (action) { |
| 1504 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1505 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1506 | } |
| 1507 | action = SNAPSHOT_LIST; |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1508 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1509 | break; |
| 1510 | case 'a': |
| 1511 | if (action) { |
| 1512 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1513 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1514 | } |
| 1515 | action = SNAPSHOT_APPLY; |
| 1516 | snapshot_name = optarg; |
| 1517 | break; |
| 1518 | case 'c': |
| 1519 | if (action) { |
| 1520 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1521 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1522 | } |
| 1523 | action = SNAPSHOT_CREATE; |
| 1524 | snapshot_name = optarg; |
| 1525 | break; |
| 1526 | case 'd': |
| 1527 | if (action) { |
| 1528 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1529 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1530 | } |
| 1531 | action = SNAPSHOT_DELETE; |
| 1532 | snapshot_name = optarg; |
| 1533 | break; |
| 1534 | } |
| 1535 | } |
| 1536 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1537 | if (optind >= argc) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1538 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1539 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1540 | filename = argv[optind++]; |
| 1541 | |
| 1542 | /* Open the image */ |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 1543 | bs = bdrv_new_open(filename, NULL, bdrv_oflags, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1544 | if (!bs) { |
| 1545 | return 1; |
| 1546 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1547 | |
| 1548 | /* Perform the requested action */ |
| 1549 | switch(action) { |
| 1550 | case SNAPSHOT_LIST: |
| 1551 | dump_snapshots(bs); |
| 1552 | break; |
| 1553 | |
| 1554 | case SNAPSHOT_CREATE: |
| 1555 | memset(&sn, 0, sizeof(sn)); |
| 1556 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); |
| 1557 | |
| 1558 | qemu_gettimeofday(&tv); |
| 1559 | sn.date_sec = tv.tv_sec; |
| 1560 | sn.date_nsec = tv.tv_usec * 1000; |
| 1561 | |
| 1562 | ret = bdrv_snapshot_create(bs, &sn); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1563 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1564 | error_report("Could not create snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1565 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1566 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1567 | break; |
| 1568 | |
| 1569 | case SNAPSHOT_APPLY: |
| 1570 | ret = bdrv_snapshot_goto(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1571 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1572 | error_report("Could not apply snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1573 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1574 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1575 | break; |
| 1576 | |
| 1577 | case SNAPSHOT_DELETE: |
| 1578 | ret = bdrv_snapshot_delete(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1579 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1580 | error_report("Could not delete snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1581 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1582 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1583 | break; |
| 1584 | } |
| 1585 | |
| 1586 | /* Cleanup */ |
| 1587 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1588 | if (ret) { |
| 1589 | return 1; |
| 1590 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1591 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1592 | } |
| 1593 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1594 | static int img_rebase(int argc, char **argv) |
| 1595 | { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1596 | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1597 | BlockDriver *old_backing_drv, *new_backing_drv; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1598 | char *filename; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1599 | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1600 | int c, flags, ret; |
| 1601 | int unsafe = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1602 | int progress = 0; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1603 | |
| 1604 | /* Parse commandline parameters */ |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1605 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1606 | cache = BDRV_DEFAULT_CACHE; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1607 | out_baseimg = NULL; |
| 1608 | out_basefmt = NULL; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1609 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1610 | c = getopt(argc, argv, "uhf:F:b:pt:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1611 | if (c == -1) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1612 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1613 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1614 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1615 | case '?': |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1616 | case 'h': |
| 1617 | help(); |
| 1618 | return 0; |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1619 | case 'f': |
| 1620 | fmt = optarg; |
| 1621 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1622 | case 'F': |
| 1623 | out_basefmt = optarg; |
| 1624 | break; |
| 1625 | case 'b': |
| 1626 | out_baseimg = optarg; |
| 1627 | break; |
| 1628 | case 'u': |
| 1629 | unsafe = 1; |
| 1630 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1631 | case 'p': |
| 1632 | progress = 1; |
| 1633 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1634 | case 't': |
| 1635 | cache = optarg; |
| 1636 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1637 | } |
| 1638 | } |
| 1639 | |
Anthony Liguori | 9a9d9db | 2011-04-13 15:51:47 +0100 | [diff] [blame] | 1640 | if ((optind >= argc) || (!unsafe && !out_baseimg)) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1641 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1642 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1643 | filename = argv[optind++]; |
| 1644 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1645 | qemu_progress_init(progress, 2.0); |
| 1646 | qemu_progress_print(0, 100); |
| 1647 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1648 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 1649 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1650 | if (ret < 0) { |
| 1651 | error_report("Invalid cache option: %s", cache); |
| 1652 | return -1; |
| 1653 | } |
| 1654 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1655 | /* |
| 1656 | * Open the images. |
| 1657 | * |
| 1658 | * Ignore the old backing file for unsafe rebase in case we want to correct |
| 1659 | * the reference to a renamed or moved backing file. |
| 1660 | */ |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 1661 | bs = bdrv_new_open(filename, fmt, flags, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1662 | if (!bs) { |
| 1663 | return 1; |
| 1664 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1665 | |
| 1666 | /* Find the right drivers for the backing files */ |
| 1667 | old_backing_drv = NULL; |
| 1668 | new_backing_drv = NULL; |
| 1669 | |
| 1670 | if (!unsafe && bs->backing_format[0] != '\0') { |
| 1671 | old_backing_drv = bdrv_find_format(bs->backing_format); |
| 1672 | if (old_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1673 | error_report("Invalid format name: '%s'", bs->backing_format); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1674 | ret = -1; |
| 1675 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1676 | } |
| 1677 | } |
| 1678 | |
| 1679 | if (out_basefmt != NULL) { |
| 1680 | new_backing_drv = bdrv_find_format(out_basefmt); |
| 1681 | if (new_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1682 | error_report("Invalid format name: '%s'", out_basefmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1683 | ret = -1; |
| 1684 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1685 | } |
| 1686 | } |
| 1687 | |
| 1688 | /* For safe rebasing we need to compare old and new backing file */ |
| 1689 | if (unsafe) { |
| 1690 | /* Make the compiler happy */ |
| 1691 | bs_old_backing = NULL; |
| 1692 | bs_new_backing = NULL; |
| 1693 | } else { |
| 1694 | char backing_name[1024]; |
| 1695 | |
| 1696 | bs_old_backing = bdrv_new("old_backing"); |
| 1697 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1698 | ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS, |
| 1699 | old_backing_drv); |
| 1700 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1701 | error_report("Could not open old backing file '%s'", backing_name); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1702 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1703 | } |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1704 | if (out_baseimg[0]) { |
| 1705 | bs_new_backing = bdrv_new("new_backing"); |
| 1706 | ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS, |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1707 | new_backing_drv); |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1708 | if (ret) { |
| 1709 | error_report("Could not open new backing file '%s'", |
| 1710 | out_baseimg); |
| 1711 | goto out; |
| 1712 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1713 | } |
| 1714 | } |
| 1715 | |
| 1716 | /* |
| 1717 | * Check each unallocated cluster in the COW file. If it is unallocated, |
| 1718 | * accesses go to the backing file. We must therefore compare this cluster |
| 1719 | * in the old and new backing file, and if they differ we need to copy it |
| 1720 | * from the old backing file into the COW file. |
| 1721 | * |
| 1722 | * If qemu-img crashes during this step, no harm is done. The content of |
| 1723 | * the image is the same as the original one at any time. |
| 1724 | */ |
| 1725 | if (!unsafe) { |
| 1726 | uint64_t num_sectors; |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 1727 | uint64_t old_backing_num_sectors; |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1728 | uint64_t new_backing_num_sectors = 0; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1729 | uint64_t sector; |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1730 | int n; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1731 | uint8_t * buf_old; |
| 1732 | uint8_t * buf_new; |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 1733 | float local_progress = 0; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1734 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 1735 | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
| 1736 | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1737 | |
| 1738 | bdrv_get_geometry(bs, &num_sectors); |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 1739 | bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors); |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1740 | if (bs_new_backing) { |
| 1741 | bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors); |
| 1742 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1743 | |
Kevin Wolf | 1f71049 | 2012-10-12 14:29:18 +0200 | [diff] [blame] | 1744 | if (num_sectors != 0) { |
| 1745 | local_progress = (float)100 / |
| 1746 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); |
| 1747 | } |
| 1748 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1749 | for (sector = 0; sector < num_sectors; sector += n) { |
| 1750 | |
| 1751 | /* How many sectors can we handle with the next read? */ |
| 1752 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
| 1753 | n = (IO_BUF_SIZE / 512); |
| 1754 | } else { |
| 1755 | n = num_sectors - sector; |
| 1756 | } |
| 1757 | |
| 1758 | /* If the cluster is allocated, we don't need to take action */ |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1759 | ret = bdrv_is_allocated(bs, sector, n, &n); |
| 1760 | if (ret) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1761 | continue; |
| 1762 | } |
| 1763 | |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 1764 | /* |
| 1765 | * Read old and new backing file and take into consideration that |
| 1766 | * backing files may be smaller than the COW image. |
| 1767 | */ |
| 1768 | if (sector >= old_backing_num_sectors) { |
| 1769 | memset(buf_old, 0, n * BDRV_SECTOR_SIZE); |
| 1770 | } else { |
| 1771 | if (sector + n > old_backing_num_sectors) { |
| 1772 | n = old_backing_num_sectors - sector; |
| 1773 | } |
| 1774 | |
| 1775 | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
| 1776 | if (ret < 0) { |
| 1777 | error_report("error while reading from old backing file"); |
| 1778 | goto out; |
| 1779 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1780 | } |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 1781 | |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1782 | if (sector >= new_backing_num_sectors || !bs_new_backing) { |
Kevin Wolf | 87a1b3e | 2011-12-07 12:42:10 +0100 | [diff] [blame] | 1783 | memset(buf_new, 0, n * BDRV_SECTOR_SIZE); |
| 1784 | } else { |
| 1785 | if (sector + n > new_backing_num_sectors) { |
| 1786 | n = new_backing_num_sectors - sector; |
| 1787 | } |
| 1788 | |
| 1789 | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
| 1790 | if (ret < 0) { |
| 1791 | error_report("error while reading from new backing file"); |
| 1792 | goto out; |
| 1793 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1794 | } |
| 1795 | |
| 1796 | /* If they differ, we need to write to the COW file */ |
| 1797 | uint64_t written = 0; |
| 1798 | |
| 1799 | while (written < n) { |
| 1800 | int pnum; |
| 1801 | |
| 1802 | if (compare_sectors(buf_old + written * 512, |
Kevin Wolf | 60b1bd4 | 2010-02-17 12:32:59 +0100 | [diff] [blame] | 1803 | buf_new + written * 512, n - written, &pnum)) |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1804 | { |
| 1805 | ret = bdrv_write(bs, sector + written, |
| 1806 | buf_old + written * 512, pnum); |
| 1807 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1808 | error_report("Error while writing to COW image: %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1809 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1810 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1811 | } |
| 1812 | } |
| 1813 | |
| 1814 | written += pnum; |
| 1815 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1816 | qemu_progress_print(local_progress, 100); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1817 | } |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1818 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame] | 1819 | qemu_vfree(buf_old); |
| 1820 | qemu_vfree(buf_new); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1821 | } |
| 1822 | |
| 1823 | /* |
| 1824 | * Change the backing file. All clusters that are different from the old |
| 1825 | * backing file are overwritten in the COW file now, so the visible content |
| 1826 | * doesn't change when we switch the backing file. |
| 1827 | */ |
Alex Bligh | a616673 | 2012-10-16 13:46:18 +0100 | [diff] [blame] | 1828 | if (out_baseimg && *out_baseimg) { |
| 1829 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
| 1830 | } else { |
| 1831 | ret = bdrv_change_backing_file(bs, NULL, NULL); |
| 1832 | } |
| 1833 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1834 | if (ret == -ENOSPC) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1835 | error_report("Could not change the backing file to '%s': No " |
| 1836 | "space left in the file header", out_baseimg); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1837 | } else if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1838 | error_report("Could not change the backing file to '%s': %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1839 | out_baseimg, strerror(-ret)); |
| 1840 | } |
| 1841 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1842 | qemu_progress_print(100, 0); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1843 | /* |
| 1844 | * TODO At this point it is possible to check if any clusters that are |
| 1845 | * allocated in the COW file are the same in the backing file. If so, they |
| 1846 | * could be dropped from the COW file. Don't do this before switching the |
| 1847 | * backing file, in case of a crash this would lead to corruption. |
| 1848 | */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1849 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1850 | qemu_progress_end(); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1851 | /* Cleanup */ |
| 1852 | if (!unsafe) { |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 1853 | if (bs_old_backing != NULL) { |
| 1854 | bdrv_delete(bs_old_backing); |
| 1855 | } |
| 1856 | if (bs_new_backing != NULL) { |
| 1857 | bdrv_delete(bs_new_backing); |
| 1858 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1859 | } |
| 1860 | |
| 1861 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1862 | if (ret) { |
| 1863 | return 1; |
| 1864 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1865 | return 0; |
| 1866 | } |
| 1867 | |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1868 | static int img_resize(int argc, char **argv) |
| 1869 | { |
| 1870 | int c, ret, relative; |
| 1871 | const char *filename, *fmt, *size; |
| 1872 | int64_t n, total_size; |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1873 | BlockDriverState *bs = NULL; |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 1874 | QemuOpts *param; |
| 1875 | static QemuOptsList resize_options = { |
| 1876 | .name = "resize_options", |
| 1877 | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), |
| 1878 | .desc = { |
| 1879 | { |
| 1880 | .name = BLOCK_OPT_SIZE, |
| 1881 | .type = QEMU_OPT_SIZE, |
| 1882 | .help = "Virtual disk size" |
| 1883 | }, { |
| 1884 | /* end of list */ |
| 1885 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1886 | }, |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1887 | }; |
| 1888 | |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1889 | /* Remove size from argv manually so that negative numbers are not treated |
| 1890 | * as options by getopt. */ |
| 1891 | if (argc < 3) { |
| 1892 | help(); |
| 1893 | return 1; |
| 1894 | } |
| 1895 | |
| 1896 | size = argv[--argc]; |
| 1897 | |
| 1898 | /* Parse getopt arguments */ |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1899 | fmt = NULL; |
| 1900 | for(;;) { |
| 1901 | c = getopt(argc, argv, "f:h"); |
| 1902 | if (c == -1) { |
| 1903 | break; |
| 1904 | } |
| 1905 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1906 | case '?': |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1907 | case 'h': |
| 1908 | help(); |
| 1909 | break; |
| 1910 | case 'f': |
| 1911 | fmt = optarg; |
| 1912 | break; |
| 1913 | } |
| 1914 | } |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1915 | if (optind >= argc) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1916 | help(); |
| 1917 | } |
| 1918 | filename = argv[optind++]; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1919 | |
| 1920 | /* Choose grow, shrink, or absolute resize mode */ |
| 1921 | switch (size[0]) { |
| 1922 | case '+': |
| 1923 | relative = 1; |
| 1924 | size++; |
| 1925 | break; |
| 1926 | case '-': |
| 1927 | relative = -1; |
| 1928 | size++; |
| 1929 | break; |
| 1930 | default: |
| 1931 | relative = 0; |
| 1932 | break; |
| 1933 | } |
| 1934 | |
| 1935 | /* Parse size */ |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 1936 | param = qemu_opts_create(&resize_options, NULL, 0, NULL); |
| 1937 | if (qemu_opt_set(param, BLOCK_OPT_SIZE, size)) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1938 | /* Error message already printed when size parsing fails */ |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1939 | ret = -1; |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 1940 | qemu_opts_del(param); |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1941 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1942 | } |
Dong Xu Wang | 20caf0f | 2012-08-06 10:18:42 +0800 | [diff] [blame] | 1943 | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0); |
| 1944 | qemu_opts_del(param); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1945 | |
Daniel P. Berrange | f0536bb | 2012-09-10 12:11:31 +0100 | [diff] [blame] | 1946 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, true); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1947 | if (!bs) { |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1948 | ret = -1; |
| 1949 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1950 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1951 | |
| 1952 | if (relative) { |
| 1953 | total_size = bdrv_getlength(bs) + n * relative; |
| 1954 | } else { |
| 1955 | total_size = n; |
| 1956 | } |
| 1957 | if (total_size <= 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1958 | error_report("New image size must be positive"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1959 | ret = -1; |
| 1960 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1961 | } |
| 1962 | |
| 1963 | ret = bdrv_truncate(bs, total_size); |
| 1964 | switch (ret) { |
| 1965 | case 0: |
| 1966 | printf("Image resized.\n"); |
| 1967 | break; |
| 1968 | case -ENOTSUP: |
Kevin Wolf | 259b217 | 2012-03-06 12:44:45 +0100 | [diff] [blame] | 1969 | error_report("This image does not support resize"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1970 | break; |
| 1971 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1972 | error_report("Image is read-only"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1973 | break; |
| 1974 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1975 | error_report("Error resizing image (%d)", -ret); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1976 | break; |
| 1977 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1978 | out: |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1979 | if (bs) { |
| 1980 | bdrv_delete(bs); |
| 1981 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1982 | if (ret) { |
| 1983 | return 1; |
| 1984 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1985 | return 0; |
| 1986 | } |
| 1987 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1988 | static const img_cmd_t img_cmds[] = { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1989 | #define DEF(option, callback, arg_string) \ |
| 1990 | { option, callback }, |
| 1991 | #include "qemu-img-cmds.h" |
| 1992 | #undef DEF |
| 1993 | #undef GEN_DOCS |
| 1994 | { NULL, NULL, }, |
| 1995 | }; |
| 1996 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1997 | int main(int argc, char **argv) |
| 1998 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1999 | const img_cmd_t *cmd; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2000 | const char *cmdname; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2001 | |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 2002 | error_set_progname(argv[0]); |
| 2003 | |
Paolo Bonzini | 2592c59 | 2012-11-03 18:10:17 +0100 | [diff] [blame] | 2004 | qemu_init_main_loop(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2005 | bdrv_init(); |
| 2006 | if (argc < 2) |
| 2007 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2008 | cmdname = argv[1]; |
aurel32 | 8f9b157 | 2009-02-09 18:14:31 +0000 | [diff] [blame] | 2009 | argc--; argv++; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2010 | |
| 2011 | /* find the command */ |
| 2012 | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
| 2013 | if (!strcmp(cmdname, cmd->name)) { |
| 2014 | return cmd->handler(argc, argv); |
| 2015 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2016 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 2017 | |
| 2018 | /* not found */ |
| 2019 | help(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 2020 | return 0; |
| 2021 | } |