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 | */ |
pbrook | faf0796 | 2007-11-11 02:51:17 +0000 | [diff] [blame] | 24 | #include "qemu-common.h" |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 25 | #include "qemu-option.h" |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 26 | #include "qemu-error.h" |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 27 | #include "osdep.h" |
Jes Sorensen | dc786bc | 2010-10-26 10:39:23 +0200 | [diff] [blame] | 28 | #include "sysemu.h" |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 29 | #include "block_int.h" |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 30 | #include <stdio.h> |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 31 | |
bellard | e844533 | 2006-06-14 15:32:10 +0000 | [diff] [blame] | 32 | #ifdef _WIN32 |
| 33 | #include <windows.h> |
| 34 | #endif |
| 35 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 36 | typedef struct img_cmd_t { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 37 | const char *name; |
| 38 | int (*handler)(int argc, char **argv); |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 39 | } img_cmd_t; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 40 | |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 41 | /* 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] | 42 | #define BDRV_O_FLAGS BDRV_O_CACHE_WB |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 43 | #define BDRV_DEFAULT_CACHE "writeback" |
aurel32 | 137519c | 2008-11-30 19:12:49 +0000 | [diff] [blame] | 44 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 45 | static void format_print(void *opaque, const char *name) |
| 46 | { |
| 47 | printf(" %s", name); |
| 48 | } |
| 49 | |
blueswir1 | d2c639d | 2009-01-24 18:19:25 +0000 | [diff] [blame] | 50 | /* Please keep in synch with qemu-img.texi */ |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 51 | static void help(void) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 52 | { |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 53 | const char *help_msg = |
| 54 | "qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 55 | "usage: qemu-img command [command options]\n" |
| 56 | "QEMU disk image utility\n" |
| 57 | "\n" |
| 58 | "Command syntax:\n" |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 59 | #define DEF(option, callback, arg_string) \ |
| 60 | " " arg_string "\n" |
| 61 | #include "qemu-img-cmds.h" |
| 62 | #undef DEF |
| 63 | #undef GEN_DOCS |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 64 | "\n" |
| 65 | "Command parameters:\n" |
| 66 | " 'filename' is a disk image filename\n" |
| 67 | " '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] | 68 | " 'cache' is the cache mode used to write the output disk image, the valid\n" |
Stefan Hajnoczi | 92196b2 | 2011-08-04 12:26:52 +0100 | [diff] [blame] | 69 | " options are: 'none', 'writeback' (default), 'writethrough', 'directsync'\n" |
| 70 | " and 'unsafe'\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 71 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
| 72 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n" |
| 73 | " and T (terabyte, 1024G) are supported. 'b' is ignored.\n" |
| 74 | " 'output_filename' is the destination disk image filename\n" |
| 75 | " 'output_fmt' is the destination format\n" |
| 76 | " 'options' is a comma separated list of format specific options in a\n" |
| 77 | " name=value format. Use -o ? for an overview of the options supported by the\n" |
| 78 | " used format\n" |
| 79 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
| 80 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" |
| 81 | " match exactly. The image doesn't need a working backing file before\n" |
| 82 | " rebasing in this case (useful for renaming the backing file)\n" |
| 83 | " '-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] | 84 | " '-p' show progress of command (only certain commands)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 85 | "\n" |
| 86 | "Parameters to snapshot subcommand:\n" |
| 87 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" |
| 88 | " '-a' applies a snapshot (revert disk to saved state)\n" |
| 89 | " '-c' creates a snapshot\n" |
| 90 | " '-d' deletes a snapshot\n" |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 91 | " '-l' lists all snapshots in the given image\n"; |
| 92 | |
| 93 | printf("%s\nSupported formats:", help_msg); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 94 | bdrv_iterate_format(format_print, NULL); |
| 95 | printf("\n"); |
| 96 | exit(1); |
| 97 | } |
| 98 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 99 | #if defined(WIN32) |
| 100 | /* XXX: put correct support for win32 */ |
| 101 | static int read_password(char *buf, int buf_size) |
| 102 | { |
| 103 | int c, i; |
| 104 | printf("Password: "); |
| 105 | fflush(stdout); |
| 106 | i = 0; |
| 107 | for(;;) { |
| 108 | c = getchar(); |
| 109 | if (c == '\n') |
| 110 | break; |
| 111 | if (i < (buf_size - 1)) |
| 112 | buf[i++] = c; |
| 113 | } |
| 114 | buf[i] = '\0'; |
| 115 | return 0; |
| 116 | } |
| 117 | |
| 118 | #else |
| 119 | |
| 120 | #include <termios.h> |
| 121 | |
| 122 | static struct termios oldtty; |
| 123 | |
| 124 | static void term_exit(void) |
| 125 | { |
| 126 | tcsetattr (0, TCSANOW, &oldtty); |
| 127 | } |
| 128 | |
| 129 | static void term_init(void) |
| 130 | { |
| 131 | struct termios tty; |
| 132 | |
| 133 | tcgetattr (0, &tty); |
| 134 | oldtty = tty; |
| 135 | |
| 136 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 137 | |INLCR|IGNCR|ICRNL|IXON); |
| 138 | tty.c_oflag |= OPOST; |
| 139 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 140 | tty.c_cflag &= ~(CSIZE|PARENB); |
| 141 | tty.c_cflag |= CS8; |
| 142 | tty.c_cc[VMIN] = 1; |
| 143 | tty.c_cc[VTIME] = 0; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 144 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 145 | tcsetattr (0, TCSANOW, &tty); |
| 146 | |
| 147 | atexit(term_exit); |
| 148 | } |
| 149 | |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 150 | static int read_password(char *buf, int buf_size) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 151 | { |
| 152 | uint8_t ch; |
| 153 | int i, ret; |
| 154 | |
| 155 | printf("password: "); |
| 156 | fflush(stdout); |
| 157 | term_init(); |
| 158 | i = 0; |
| 159 | for(;;) { |
| 160 | ret = read(0, &ch, 1); |
| 161 | if (ret == -1) { |
| 162 | if (errno == EAGAIN || errno == EINTR) { |
| 163 | continue; |
| 164 | } else { |
| 165 | ret = -1; |
| 166 | break; |
| 167 | } |
| 168 | } else if (ret == 0) { |
| 169 | ret = -1; |
| 170 | break; |
| 171 | } else { |
| 172 | if (ch == '\r') { |
| 173 | ret = 0; |
| 174 | break; |
| 175 | } |
| 176 | if (i < (buf_size - 1)) |
| 177 | buf[i++] = ch; |
| 178 | } |
| 179 | } |
| 180 | term_exit(); |
| 181 | buf[i] = '\0'; |
| 182 | printf("\n"); |
| 183 | return ret; |
| 184 | } |
| 185 | #endif |
| 186 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 187 | static int print_block_option_help(const char *filename, const char *fmt) |
| 188 | { |
| 189 | BlockDriver *drv, *proto_drv; |
| 190 | QEMUOptionParameter *create_options = NULL; |
| 191 | |
| 192 | /* Find driver and parse its options */ |
| 193 | drv = bdrv_find_format(fmt); |
| 194 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 195 | error_report("Unknown file format '%s'", fmt); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 196 | return 1; |
| 197 | } |
| 198 | |
| 199 | proto_drv = bdrv_find_protocol(filename); |
| 200 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 201 | error_report("Unknown protocol '%s'", filename); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 202 | return 1; |
| 203 | } |
| 204 | |
| 205 | create_options = append_option_parameters(create_options, |
| 206 | drv->create_options); |
| 207 | create_options = append_option_parameters(create_options, |
| 208 | proto_drv->create_options); |
| 209 | print_option_help(create_options); |
| 210 | free_option_parameters(create_options); |
| 211 | return 0; |
| 212 | } |
| 213 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 214 | static BlockDriverState *bdrv_new_open(const char *filename, |
Sheng Yang | 9bc378c | 2010-01-29 10:15:06 +0800 | [diff] [blame] | 215 | const char *fmt, |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 216 | int flags) |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 217 | { |
| 218 | BlockDriverState *bs; |
| 219 | BlockDriver *drv; |
| 220 | char password[256]; |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 221 | int ret; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 222 | |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 223 | bs = bdrv_new("image"); |
Kevin Wolf | ad71713 | 2010-12-16 15:37:41 +0100 | [diff] [blame] | 224 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 225 | if (fmt) { |
| 226 | drv = bdrv_find_format(fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 227 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 228 | error_report("Unknown file format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 229 | goto fail; |
| 230 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 231 | } else { |
| 232 | drv = NULL; |
| 233 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 234 | |
| 235 | ret = bdrv_open(bs, filename, flags, drv); |
| 236 | if (ret < 0) { |
| 237 | error_report("Could not open '%s': %s", filename, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 238 | goto fail; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 239 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 240 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 241 | if (bdrv_is_encrypted(bs)) { |
| 242 | printf("Disk image '%s' is encrypted.\n", filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 243 | if (read_password(password, sizeof(password)) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 244 | error_report("No password given"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 245 | goto fail; |
| 246 | } |
| 247 | if (bdrv_set_key(bs, password) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 248 | error_report("invalid password"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 249 | goto fail; |
| 250 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 251 | } |
| 252 | return bs; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 253 | fail: |
| 254 | if (bs) { |
| 255 | bdrv_delete(bs); |
| 256 | } |
| 257 | return NULL; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 258 | } |
| 259 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 260 | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 261 | const char *base_filename, |
| 262 | const char *base_fmt) |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 263 | { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 264 | if (base_filename) { |
| 265 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 266 | error_report("Backing file not supported for file format '%s'", |
| 267 | fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 268 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 269 | } |
| 270 | } |
| 271 | if (base_fmt) { |
| 272 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 273 | error_report("Backing file format not supported for file " |
| 274 | "format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 275 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 276 | } |
| 277 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 278 | return 0; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 279 | } |
| 280 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 281 | static int img_create(int argc, char **argv) |
| 282 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 283 | int c, ret = 0; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 284 | uint64_t img_size = -1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 285 | const char *fmt = "raw"; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 286 | const char *base_fmt = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 287 | const char *filename; |
| 288 | const char *base_filename = NULL; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 289 | char *options = NULL; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 290 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 291 | for(;;) { |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 292 | c = getopt(argc, argv, "F:b:f:he6o:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 293 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 294 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 295 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 296 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 297 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 298 | case 'h': |
| 299 | help(); |
| 300 | break; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 301 | case 'F': |
| 302 | base_fmt = optarg; |
| 303 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 304 | case 'b': |
| 305 | base_filename = optarg; |
| 306 | break; |
| 307 | case 'f': |
| 308 | fmt = optarg; |
| 309 | break; |
| 310 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 311 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 312 | "encryption\' instead!"); |
| 313 | return 1; |
ths | d8871c5 | 2007-10-24 16:11:42 +0000 | [diff] [blame] | 314 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 315 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 316 | "compat6\' instead!"); |
| 317 | return 1; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 318 | case 'o': |
| 319 | options = optarg; |
| 320 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 321 | } |
| 322 | } |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 323 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 324 | /* Get the filename */ |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 325 | if (optind >= argc) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 326 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 327 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 328 | filename = argv[optind++]; |
| 329 | |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 330 | /* Get image size, if specified */ |
| 331 | if (optind < argc) { |
Jes Sorensen | 70b4f4b | 2011-01-05 11:41:02 +0100 | [diff] [blame] | 332 | int64_t sval; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 333 | sval = strtosz_suffix(argv[optind++], NULL, STRTOSZ_DEFSUFFIX_B); |
| 334 | if (sval < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 335 | 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] | 336 | "T suffixes for "); |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 337 | error_report("kilobytes, megabytes, gigabytes and terabytes."); |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 338 | ret = -1; |
| 339 | goto out; |
| 340 | } |
| 341 | img_size = (uint64_t)sval; |
| 342 | } |
| 343 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 344 | if (options && !strcmp(options, "?")) { |
| 345 | ret = print_block_option_help(filename, fmt); |
| 346 | goto out; |
| 347 | } |
| 348 | |
Jes Sorensen | f88e1a4 | 2010-12-16 13:52:15 +0100 | [diff] [blame] | 349 | ret = bdrv_img_create(filename, fmt, base_filename, base_fmt, |
| 350 | options, img_size, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 351 | out: |
| 352 | if (ret) { |
| 353 | return 1; |
| 354 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 355 | return 0; |
| 356 | } |
| 357 | |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 358 | /* |
| 359 | * Checks an image for consistency. Exit codes: |
| 360 | * |
| 361 | * 0 - Check completed, image is good |
| 362 | * 1 - Check not completed because of internal errors |
| 363 | * 2 - Check completed, image is corrupted |
| 364 | * 3 - Check completed, image has leaked clusters, but is good otherwise |
| 365 | */ |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 366 | static int img_check(int argc, char **argv) |
| 367 | { |
| 368 | int c, ret; |
| 369 | const char *filename, *fmt; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 370 | BlockDriverState *bs; |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 371 | BdrvCheckResult result; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 372 | |
| 373 | fmt = NULL; |
| 374 | for(;;) { |
| 375 | c = getopt(argc, argv, "f:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 376 | if (c == -1) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 377 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 378 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 379 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 380 | case '?': |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 381 | case 'h': |
| 382 | help(); |
| 383 | break; |
| 384 | case 'f': |
| 385 | fmt = optarg; |
| 386 | break; |
| 387 | } |
| 388 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 389 | if (optind >= argc) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 390 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 391 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 392 | filename = argv[optind++]; |
| 393 | |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 394 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 395 | if (!bs) { |
| 396 | return 1; |
| 397 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 398 | ret = bdrv_check(bs, &result); |
| 399 | |
| 400 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 401 | error_report("This image format does not support checks"); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 402 | bdrv_delete(bs); |
| 403 | return 1; |
| 404 | } |
| 405 | |
| 406 | if (!(result.corruptions || result.leaks || result.check_errors)) { |
| 407 | printf("No errors were found on the image.\n"); |
| 408 | } else { |
| 409 | if (result.corruptions) { |
| 410 | printf("\n%d errors were found on the image.\n" |
| 411 | "Data may be corrupted, or further writes to the image " |
| 412 | "may corrupt it.\n", |
| 413 | result.corruptions); |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 414 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 415 | |
| 416 | if (result.leaks) { |
| 417 | printf("\n%d leaked clusters were found on the image.\n" |
| 418 | "This means waste of disk space, but no harm to data.\n", |
| 419 | result.leaks); |
| 420 | } |
| 421 | |
| 422 | if (result.check_errors) { |
| 423 | printf("\n%d internal errors have occurred during the check.\n", |
| 424 | result.check_errors); |
| 425 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 426 | } |
| 427 | |
| 428 | bdrv_delete(bs); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 429 | |
| 430 | if (ret < 0 || result.check_errors) { |
| 431 | printf("\nAn error has occurred during the check: %s\n" |
| 432 | "The check is not complete and may have missed error.\n", |
| 433 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 434 | return 1; |
| 435 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 436 | |
| 437 | if (result.corruptions) { |
| 438 | return 2; |
| 439 | } else if (result.leaks) { |
| 440 | return 3; |
| 441 | } else { |
| 442 | return 0; |
| 443 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 444 | } |
| 445 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 446 | static int img_commit(int argc, char **argv) |
| 447 | { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 448 | int c, ret, flags; |
| 449 | const char *filename, *fmt, *cache; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 450 | BlockDriverState *bs; |
| 451 | |
| 452 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 453 | cache = BDRV_DEFAULT_CACHE; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 454 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 455 | c = getopt(argc, argv, "f:ht:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 456 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 457 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 458 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 459 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 460 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 461 | case 'h': |
| 462 | help(); |
| 463 | break; |
| 464 | case 'f': |
| 465 | fmt = optarg; |
| 466 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 467 | case 't': |
| 468 | cache = optarg; |
| 469 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 470 | } |
| 471 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 472 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 473 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 474 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 475 | filename = argv[optind++]; |
| 476 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 477 | flags = BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 478 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 479 | if (ret < 0) { |
| 480 | error_report("Invalid cache option: %s", cache); |
| 481 | return -1; |
| 482 | } |
| 483 | |
| 484 | bs = bdrv_new_open(filename, fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 485 | if (!bs) { |
| 486 | return 1; |
| 487 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 488 | ret = bdrv_commit(bs); |
| 489 | switch(ret) { |
| 490 | case 0: |
| 491 | printf("Image committed.\n"); |
| 492 | break; |
| 493 | case -ENOENT: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 494 | error_report("No disk inserted"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 495 | break; |
| 496 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 497 | error_report("Image is read-only"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 498 | break; |
| 499 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 500 | error_report("Image is already committed"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 501 | break; |
| 502 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 503 | error_report("Error while committing image"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 504 | break; |
| 505 | } |
| 506 | |
| 507 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 508 | if (ret) { |
| 509 | return 1; |
| 510 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 511 | return 0; |
| 512 | } |
| 513 | |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 514 | /* |
| 515 | * Checks whether the sector is not a zero sector. |
| 516 | * |
| 517 | * Attention! The len must be a multiple of 4 * sizeof(long) due to |
| 518 | * restriction of optimizations in this function. |
| 519 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 520 | static int is_not_zero(const uint8_t *sector, int len) |
| 521 | { |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 522 | /* |
| 523 | * Use long as the biggest available internal data type that fits into the |
| 524 | * CPU register and unroll the loop to smooth out the effect of memory |
| 525 | * latency. |
| 526 | */ |
| 527 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 528 | int i; |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 529 | long d0, d1, d2, d3; |
| 530 | const long * const data = (const long *) sector; |
| 531 | |
| 532 | len /= sizeof(long); |
| 533 | |
| 534 | for(i = 0; i < len; i += 4) { |
| 535 | d0 = data[i + 0]; |
| 536 | d1 = data[i + 1]; |
| 537 | d2 = data[i + 2]; |
| 538 | d3 = data[i + 3]; |
| 539 | |
| 540 | if (d0 || d1 || d2 || d3) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 541 | return 1; |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 542 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 543 | } |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 544 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 545 | return 0; |
| 546 | } |
| 547 | |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 548 | /* |
| 549 | * Returns true iff the first sector pointed to by 'buf' contains at least |
| 550 | * a non-NUL byte. |
| 551 | * |
| 552 | * 'pnum' is set to the number of sectors (including and immediately following |
| 553 | * the first one) that are known to be in the same allocated/unallocated state. |
| 554 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 555 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
| 556 | { |
| 557 | int v, i; |
| 558 | |
| 559 | if (n <= 0) { |
| 560 | *pnum = 0; |
| 561 | return 0; |
| 562 | } |
| 563 | v = is_not_zero(buf, 512); |
| 564 | for(i = 1; i < n; i++) { |
| 565 | buf += 512; |
| 566 | if (v != is_not_zero(buf, 512)) |
| 567 | break; |
| 568 | } |
| 569 | *pnum = i; |
| 570 | return v; |
| 571 | } |
| 572 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 573 | /* |
| 574 | * Compares two buffers sector by sector. Returns 0 if the first sector of both |
| 575 | * buffers matches, non-zero otherwise. |
| 576 | * |
| 577 | * pnum is set to the number of sectors (including and immediately following |
| 578 | * the first one) that are known to have the same comparison result |
| 579 | */ |
| 580 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
| 581 | int *pnum) |
| 582 | { |
| 583 | int res, i; |
| 584 | |
| 585 | if (n <= 0) { |
| 586 | *pnum = 0; |
| 587 | return 0; |
| 588 | } |
| 589 | |
| 590 | res = !!memcmp(buf1, buf2, 512); |
| 591 | for(i = 1; i < n; i++) { |
| 592 | buf1 += 512; |
| 593 | buf2 += 512; |
| 594 | |
| 595 | if (!!memcmp(buf1, buf2, 512) != res) { |
| 596 | break; |
| 597 | } |
| 598 | } |
| 599 | |
| 600 | *pnum = i; |
| 601 | return res; |
| 602 | } |
| 603 | |
Kevin Wolf | 80ee15a | 2009-09-15 12:30:43 +0200 | [diff] [blame] | 604 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 605 | |
| 606 | static int img_convert(int argc, char **argv) |
| 607 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 608 | 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] | 609 | int progress = 0, flags; |
| 610 | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 611 | BlockDriver *drv, *proto_drv; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 612 | BlockDriverState **bs = NULL, *out_bs = NULL; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 613 | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
| 614 | uint64_t bs_sectors; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 615 | uint8_t * buf = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 616 | const uint8_t *buf1; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 617 | BlockDriverInfo bdi; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 618 | QEMUOptionParameter *param = NULL, *create_options = NULL; |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 619 | QEMUOptionParameter *out_baseimg_param; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 620 | char *options = NULL; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 621 | const char *snapshot_name = NULL; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 622 | float local_progress; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 623 | |
| 624 | fmt = NULL; |
| 625 | out_fmt = "raw"; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 626 | cache = "unsafe"; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 627 | out_baseimg = NULL; |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 628 | compress = 0; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 629 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 630 | c = getopt(argc, argv, "f:O:B:s:hce6o:pt:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 631 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 632 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 633 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 634 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 635 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 636 | case 'h': |
| 637 | help(); |
| 638 | break; |
| 639 | case 'f': |
| 640 | fmt = optarg; |
| 641 | break; |
| 642 | case 'O': |
| 643 | out_fmt = optarg; |
| 644 | break; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 645 | case 'B': |
| 646 | out_baseimg = optarg; |
| 647 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 648 | case 'c': |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 649 | compress = 1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 650 | break; |
| 651 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 652 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 653 | "encryption\' instead!"); |
| 654 | return 1; |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 655 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 656 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 657 | "compat6\' instead!"); |
| 658 | return 1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 659 | case 'o': |
| 660 | options = optarg; |
| 661 | break; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 662 | case 's': |
| 663 | snapshot_name = optarg; |
| 664 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 665 | case 'p': |
| 666 | progress = 1; |
| 667 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 668 | case 't': |
| 669 | cache = optarg; |
| 670 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 671 | } |
| 672 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 673 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 674 | bs_n = argc - optind - 1; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 675 | if (bs_n < 1) { |
| 676 | help(); |
| 677 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 678 | |
| 679 | out_filename = argv[argc - 1]; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 680 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 681 | if (options && !strcmp(options, "?")) { |
| 682 | ret = print_block_option_help(out_filename, out_fmt); |
| 683 | goto out; |
| 684 | } |
| 685 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 686 | if (bs_n > 1 && out_baseimg) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 687 | error_report("-B makes no sense when concatenating multiple input " |
| 688 | "images"); |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 689 | ret = -1; |
| 690 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 691 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 692 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 693 | qemu_progress_init(progress, 2.0); |
| 694 | qemu_progress_print(0, 100); |
| 695 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 696 | bs = g_malloc0(bs_n * sizeof(BlockDriverState *)); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 697 | |
| 698 | total_sectors = 0; |
| 699 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 700 | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 701 | if (!bs[bs_i]) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 702 | error_report("Could not open '%s'", argv[optind + bs_i]); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 703 | ret = -1; |
| 704 | goto out; |
| 705 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 706 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 707 | total_sectors += bs_sectors; |
| 708 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 709 | |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 710 | if (snapshot_name != NULL) { |
| 711 | if (bs_n > 1) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 712 | error_report("No support for concatenating multiple snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 713 | ret = -1; |
| 714 | goto out; |
| 715 | } |
| 716 | if (bdrv_snapshot_load_tmp(bs[0], snapshot_name) < 0) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 717 | error_report("Failed to load snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 718 | ret = -1; |
| 719 | goto out; |
| 720 | } |
| 721 | } |
| 722 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 723 | /* Find driver and parse its options */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 724 | drv = bdrv_find_format(out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 725 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 726 | error_report("Unknown file format '%s'", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 727 | ret = -1; |
| 728 | goto out; |
| 729 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 730 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 731 | proto_drv = bdrv_find_protocol(out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 732 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 733 | error_report("Unknown protocol '%s'", out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 734 | ret = -1; |
| 735 | goto out; |
| 736 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 737 | |
| 738 | create_options = append_option_parameters(create_options, |
| 739 | drv->create_options); |
| 740 | create_options = append_option_parameters(create_options, |
| 741 | proto_drv->create_options); |
Kevin Wolf | db08adf | 2009-06-04 15:39:38 +0200 | [diff] [blame] | 742 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 743 | if (options) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 744 | param = parse_option_parameters(options, create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 745 | if (param == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 746 | error_report("Invalid options for file format '%s'.", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 747 | ret = -1; |
| 748 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 749 | } |
| 750 | } else { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 751 | param = parse_option_parameters("", create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 752 | } |
| 753 | |
| 754 | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512); |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 755 | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 756 | if (ret < 0) { |
| 757 | goto out; |
| 758 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 759 | |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 760 | /* Get backing file name if -o backing_file was used */ |
| 761 | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
| 762 | if (out_baseimg_param) { |
| 763 | out_baseimg = out_baseimg_param->value.s; |
| 764 | } |
| 765 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 766 | /* Check if compression is supported */ |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 767 | if (compress) { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 768 | QEMUOptionParameter *encryption = |
| 769 | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
| 770 | |
| 771 | if (!drv->bdrv_write_compressed) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 772 | error_report("Compression not supported for this file format"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 773 | ret = -1; |
| 774 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 775 | } |
| 776 | |
| 777 | if (encryption && encryption->value.n) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 778 | error_report("Compression and encryption not supported at " |
| 779 | "the same time"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 780 | ret = -1; |
| 781 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 782 | } |
| 783 | } |
| 784 | |
| 785 | /* Create the new image */ |
| 786 | ret = bdrv_create(drv, out_filename, param); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 787 | if (ret < 0) { |
| 788 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 789 | error_report("Formatting not supported for file format '%s'", |
| 790 | out_fmt); |
aurel32 | 6e9ea0c | 2009-04-15 14:42:46 +0000 | [diff] [blame] | 791 | } else if (ret == -EFBIG) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 792 | error_report("The image size is too large for file format '%s'", |
| 793 | out_fmt); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 794 | } else { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 795 | error_report("%s: error while converting %s: %s", |
| 796 | out_filename, out_fmt, strerror(-ret)); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 797 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 798 | goto out; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 799 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 800 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 801 | flags = BDRV_O_RDWR; |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 802 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 803 | if (ret < 0) { |
| 804 | error_report("Invalid cache option: %s", cache); |
| 805 | return -1; |
| 806 | } |
| 807 | |
| 808 | out_bs = bdrv_new_open(out_filename, out_fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 809 | if (!out_bs) { |
| 810 | ret = -1; |
| 811 | goto out; |
| 812 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 813 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 814 | bs_i = 0; |
| 815 | bs_offset = 0; |
| 816 | bdrv_get_geometry(bs[0], &bs_sectors); |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame^] | 817 | buf = qemu_blockalign(out_bs, IO_BUF_SIZE); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 818 | |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 819 | if (compress) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 820 | ret = bdrv_get_info(out_bs, &bdi); |
| 821 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 822 | error_report("could not get block driver info"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 823 | goto out; |
| 824 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 825 | cluster_size = bdi.cluster_size; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 826 | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 827 | error_report("invalid cluster size"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 828 | ret = -1; |
| 829 | goto out; |
| 830 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 831 | cluster_sectors = cluster_size >> 9; |
| 832 | sector_num = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 833 | |
| 834 | nb_sectors = total_sectors; |
| 835 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 836 | (nb_sectors / MIN(nb_sectors, cluster_sectors)); |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 837 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 838 | for(;;) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 839 | int64_t bs_num; |
| 840 | int remainder; |
| 841 | uint8_t *buf2; |
| 842 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 843 | nb_sectors = total_sectors - sector_num; |
| 844 | if (nb_sectors <= 0) |
| 845 | break; |
| 846 | if (nb_sectors >= cluster_sectors) |
| 847 | n = cluster_sectors; |
| 848 | else |
| 849 | n = nb_sectors; |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 850 | |
| 851 | bs_num = sector_num - bs_offset; |
| 852 | assert (bs_num >= 0); |
| 853 | remainder = n; |
| 854 | buf2 = buf; |
| 855 | while (remainder > 0) { |
| 856 | int nlow; |
| 857 | while (bs_num == bs_sectors) { |
| 858 | bs_i++; |
| 859 | assert (bs_i < bs_n); |
| 860 | bs_offset += bs_sectors; |
| 861 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 862 | bs_num = 0; |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 863 | /* printf("changing part: sector_num=%" PRId64 ", " |
| 864 | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64 |
| 865 | "\n", sector_num, bs_i, bs_offset, bs_sectors); */ |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 866 | } |
| 867 | assert (bs_num < bs_sectors); |
| 868 | |
| 869 | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
| 870 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 871 | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
| 872 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 873 | error_report("error while reading"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 874 | goto out; |
| 875 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 876 | |
| 877 | buf2 += nlow * 512; |
| 878 | bs_num += nlow; |
| 879 | |
| 880 | remainder -= nlow; |
| 881 | } |
| 882 | assert (remainder == 0); |
| 883 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 884 | if (n < cluster_sectors) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 885 | memset(buf + n * 512, 0, cluster_size - n * 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 886 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 887 | if (is_not_zero(buf, cluster_size)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 888 | ret = bdrv_write_compressed(out_bs, sector_num, buf, |
| 889 | cluster_sectors); |
| 890 | if (ret != 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 891 | error_report("error while compressing sector %" PRId64, |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 892 | sector_num); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 893 | goto out; |
| 894 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 895 | } |
| 896 | sector_num += n; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 897 | qemu_progress_print(local_progress, 100); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 898 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 899 | /* signal EOF to align */ |
| 900 | bdrv_write_compressed(out_bs, 0, NULL, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 901 | } else { |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 902 | int has_zero_init = bdrv_has_zero_init(out_bs); |
| 903 | |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 904 | sector_num = 0; // total number of sectors converted so far |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 905 | nb_sectors = total_sectors - sector_num; |
| 906 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 907 | (nb_sectors / MIN(nb_sectors, IO_BUF_SIZE / 512)); |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 908 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 909 | for(;;) { |
| 910 | nb_sectors = total_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 911 | if (nb_sectors <= 0) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 912 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 913 | } |
| 914 | if (nb_sectors >= (IO_BUF_SIZE / 512)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 915 | n = (IO_BUF_SIZE / 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 916 | } else { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 917 | n = nb_sectors; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 918 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 919 | |
| 920 | while (sector_num - bs_offset >= bs_sectors) { |
| 921 | bs_i ++; |
| 922 | assert (bs_i < bs_n); |
| 923 | bs_offset += bs_sectors; |
| 924 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 925 | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, " |
| 926 | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n", |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 927 | sector_num, bs_i, bs_offset, bs_sectors); */ |
| 928 | } |
| 929 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 930 | if (n > bs_offset + bs_sectors - sector_num) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 931 | n = bs_offset + bs_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 932 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 933 | |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 934 | if (has_zero_init) { |
Akkarit Sangpetch | d032044 | 2009-07-17 10:02:15 +0200 | [diff] [blame] | 935 | /* If the output image is being created as a copy on write image, |
| 936 | assume that sectors which are unallocated in the input image |
| 937 | are present in both the output's and input's base images (no |
| 938 | need to copy them). */ |
| 939 | if (out_baseimg) { |
| 940 | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, |
| 941 | n, &n1)) { |
| 942 | sector_num += n1; |
| 943 | continue; |
| 944 | } |
| 945 | /* The next 'n1' sectors are allocated in the input image. Copy |
| 946 | only those as they may be followed by unallocated sectors. */ |
| 947 | n = n1; |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 948 | } |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 949 | } else { |
| 950 | n1 = n; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 951 | } |
| 952 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 953 | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
| 954 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 955 | error_report("error while reading"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 956 | goto out; |
| 957 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 958 | /* NOTE: at the same time we convert, we do not write zero |
| 959 | sectors to have a chance to compress the image. Ideally, we |
| 960 | should add a specific call to have the info to go faster */ |
| 961 | buf1 = buf; |
| 962 | while (n > 0) { |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 963 | /* If the output image is being created as a copy on write image, |
| 964 | copy all sectors even the ones containing only NUL bytes, |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 965 | because they may differ from the sectors in the base image. |
| 966 | |
| 967 | If the output is to a host device, we also write out |
| 968 | sectors that are entirely 0, since whatever data was |
| 969 | already there is garbage, not 0s. */ |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 970 | if (!has_zero_init || out_baseimg || |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 971 | is_allocated_sectors(buf1, n, &n1)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 972 | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
| 973 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 974 | error_report("error while writing"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 975 | goto out; |
| 976 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 977 | } |
| 978 | sector_num += n1; |
| 979 | n -= n1; |
| 980 | buf1 += n1 * 512; |
| 981 | } |
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 | } |
| 984 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 985 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 986 | qemu_progress_end(); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 987 | free_option_parameters(create_options); |
| 988 | free_option_parameters(param); |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame^] | 989 | qemu_vfree(buf); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 990 | if (out_bs) { |
| 991 | bdrv_delete(out_bs); |
| 992 | } |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 993 | if (bs) { |
| 994 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
| 995 | if (bs[bs_i]) { |
| 996 | bdrv_delete(bs[bs_i]); |
| 997 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 998 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 999 | g_free(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1000 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1001 | if (ret) { |
| 1002 | return 1; |
| 1003 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1004 | return 0; |
| 1005 | } |
| 1006 | |
bellard | 57d1a2b | 2004-08-03 21:15:11 +0000 | [diff] [blame] | 1007 | |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1008 | static void dump_snapshots(BlockDriverState *bs) |
| 1009 | { |
| 1010 | QEMUSnapshotInfo *sn_tab, *sn; |
| 1011 | int nb_sns, i; |
| 1012 | char buf[256]; |
| 1013 | |
| 1014 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| 1015 | if (nb_sns <= 0) |
| 1016 | return; |
| 1017 | printf("Snapshot list:\n"); |
| 1018 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
| 1019 | for(i = 0; i < nb_sns; i++) { |
| 1020 | sn = &sn_tab[i]; |
| 1021 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
| 1022 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1023 | g_free(sn_tab); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1024 | } |
| 1025 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1026 | static int img_info(int argc, char **argv) |
| 1027 | { |
| 1028 | int c; |
| 1029 | const char *filename, *fmt; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1030 | BlockDriverState *bs; |
| 1031 | char fmt_name[128], size_buf[128], dsize_buf[128]; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 1032 | uint64_t total_sectors; |
| 1033 | int64_t allocated_size; |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1034 | char backing_filename[1024]; |
| 1035 | char backing_filename2[1024]; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1036 | BlockDriverInfo bdi; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1037 | |
| 1038 | fmt = NULL; |
| 1039 | for(;;) { |
| 1040 | c = getopt(argc, argv, "f:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1041 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1042 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1043 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1044 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1045 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1046 | case 'h': |
| 1047 | help(); |
| 1048 | break; |
| 1049 | case 'f': |
| 1050 | fmt = optarg; |
| 1051 | break; |
| 1052 | } |
| 1053 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1054 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1055 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1056 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1057 | filename = argv[optind++]; |
| 1058 | |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 1059 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1060 | if (!bs) { |
| 1061 | return 1; |
| 1062 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1063 | bdrv_get_format(bs, fmt_name, sizeof(fmt_name)); |
| 1064 | bdrv_get_geometry(bs, &total_sectors); |
| 1065 | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
Fam Zheng | 4a1d5e1 | 2011-07-12 19:56:39 +0800 | [diff] [blame] | 1066 | allocated_size = bdrv_get_allocated_file_size(bs); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1067 | if (allocated_size < 0) { |
blueswir1 | a10ea30 | 2008-08-24 10:30:33 +0000 | [diff] [blame] | 1068 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1069 | } else { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1070 | get_human_readable_size(dsize_buf, sizeof(dsize_buf), |
bellard | de167e4 | 2005-04-28 21:15:08 +0000 | [diff] [blame] | 1071 | allocated_size); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1072 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1073 | printf("image: %s\n" |
| 1074 | "file format: %s\n" |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 1075 | "virtual size: %s (%" PRId64 " bytes)\n" |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1076 | "disk size: %s\n", |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1077 | filename, fmt_name, size_buf, |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 1078 | (total_sectors * 512), |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1079 | dsize_buf); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1080 | if (bdrv_is_encrypted(bs)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1081 | printf("encrypted: yes\n"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1082 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1083 | if (bdrv_get_info(bs, &bdi) >= 0) { |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1084 | if (bdi.cluster_size != 0) { |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1085 | printf("cluster_size: %d\n", bdi.cluster_size); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1086 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1087 | } |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1088 | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename)); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1089 | if (backing_filename[0] != '\0') { |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1090 | path_combine(backing_filename2, sizeof(backing_filename2), |
| 1091 | filename, backing_filename); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1092 | printf("backing file: %s (actual path: %s)\n", |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1093 | backing_filename, |
| 1094 | backing_filename2); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1095 | } |
| 1096 | dump_snapshots(bs); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1097 | bdrv_delete(bs); |
| 1098 | return 0; |
| 1099 | } |
| 1100 | |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1101 | #define SNAPSHOT_LIST 1 |
| 1102 | #define SNAPSHOT_CREATE 2 |
| 1103 | #define SNAPSHOT_APPLY 3 |
| 1104 | #define SNAPSHOT_DELETE 4 |
| 1105 | |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1106 | static int img_snapshot(int argc, char **argv) |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1107 | { |
| 1108 | BlockDriverState *bs; |
| 1109 | QEMUSnapshotInfo sn; |
| 1110 | char *filename, *snapshot_name = NULL; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1111 | int c, ret = 0, bdrv_oflags; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1112 | int action = 0; |
| 1113 | qemu_timeval tv; |
| 1114 | |
Kevin Wolf | 710da70 | 2011-01-10 12:33:02 +0100 | [diff] [blame] | 1115 | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1116 | /* Parse commandline parameters */ |
| 1117 | for(;;) { |
| 1118 | c = getopt(argc, argv, "la:c:d:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1119 | if (c == -1) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1120 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1121 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1122 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1123 | case '?': |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1124 | case 'h': |
| 1125 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1126 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1127 | case 'l': |
| 1128 | if (action) { |
| 1129 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1130 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1131 | } |
| 1132 | action = SNAPSHOT_LIST; |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1133 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1134 | break; |
| 1135 | case 'a': |
| 1136 | if (action) { |
| 1137 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1138 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1139 | } |
| 1140 | action = SNAPSHOT_APPLY; |
| 1141 | snapshot_name = optarg; |
| 1142 | break; |
| 1143 | case 'c': |
| 1144 | if (action) { |
| 1145 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1146 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1147 | } |
| 1148 | action = SNAPSHOT_CREATE; |
| 1149 | snapshot_name = optarg; |
| 1150 | break; |
| 1151 | case 'd': |
| 1152 | if (action) { |
| 1153 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1154 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1155 | } |
| 1156 | action = SNAPSHOT_DELETE; |
| 1157 | snapshot_name = optarg; |
| 1158 | break; |
| 1159 | } |
| 1160 | } |
| 1161 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1162 | if (optind >= argc) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1163 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1164 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1165 | filename = argv[optind++]; |
| 1166 | |
| 1167 | /* Open the image */ |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1168 | bs = bdrv_new_open(filename, NULL, bdrv_oflags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1169 | if (!bs) { |
| 1170 | return 1; |
| 1171 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1172 | |
| 1173 | /* Perform the requested action */ |
| 1174 | switch(action) { |
| 1175 | case SNAPSHOT_LIST: |
| 1176 | dump_snapshots(bs); |
| 1177 | break; |
| 1178 | |
| 1179 | case SNAPSHOT_CREATE: |
| 1180 | memset(&sn, 0, sizeof(sn)); |
| 1181 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); |
| 1182 | |
| 1183 | qemu_gettimeofday(&tv); |
| 1184 | sn.date_sec = tv.tv_sec; |
| 1185 | sn.date_nsec = tv.tv_usec * 1000; |
| 1186 | |
| 1187 | ret = bdrv_snapshot_create(bs, &sn); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1188 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1189 | error_report("Could not create snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1190 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1191 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1192 | break; |
| 1193 | |
| 1194 | case SNAPSHOT_APPLY: |
| 1195 | ret = bdrv_snapshot_goto(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1196 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1197 | error_report("Could not apply snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1198 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1199 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1200 | break; |
| 1201 | |
| 1202 | case SNAPSHOT_DELETE: |
| 1203 | ret = bdrv_snapshot_delete(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1204 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1205 | error_report("Could not delete snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1206 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1207 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1208 | break; |
| 1209 | } |
| 1210 | |
| 1211 | /* Cleanup */ |
| 1212 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1213 | if (ret) { |
| 1214 | return 1; |
| 1215 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1216 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1217 | } |
| 1218 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1219 | static int img_rebase(int argc, char **argv) |
| 1220 | { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1221 | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1222 | BlockDriver *old_backing_drv, *new_backing_drv; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1223 | char *filename; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1224 | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1225 | int c, flags, ret; |
| 1226 | int unsafe = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1227 | int progress = 0; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1228 | |
| 1229 | /* Parse commandline parameters */ |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1230 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1231 | cache = BDRV_DEFAULT_CACHE; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1232 | out_baseimg = NULL; |
| 1233 | out_basefmt = NULL; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1234 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1235 | c = getopt(argc, argv, "uhf:F:b:pt:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1236 | if (c == -1) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1237 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1238 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1239 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1240 | case '?': |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1241 | case 'h': |
| 1242 | help(); |
| 1243 | return 0; |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1244 | case 'f': |
| 1245 | fmt = optarg; |
| 1246 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1247 | case 'F': |
| 1248 | out_basefmt = optarg; |
| 1249 | break; |
| 1250 | case 'b': |
| 1251 | out_baseimg = optarg; |
| 1252 | break; |
| 1253 | case 'u': |
| 1254 | unsafe = 1; |
| 1255 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1256 | case 'p': |
| 1257 | progress = 1; |
| 1258 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1259 | case 't': |
| 1260 | cache = optarg; |
| 1261 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1262 | } |
| 1263 | } |
| 1264 | |
Anthony Liguori | 9a9d9db | 2011-04-13 15:51:47 +0100 | [diff] [blame] | 1265 | if ((optind >= argc) || (!unsafe && !out_baseimg)) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1266 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1267 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1268 | filename = argv[optind++]; |
| 1269 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1270 | qemu_progress_init(progress, 2.0); |
| 1271 | qemu_progress_print(0, 100); |
| 1272 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1273 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
Stefan Hajnoczi | c3993cd | 2011-08-04 12:26:51 +0100 | [diff] [blame] | 1274 | ret = bdrv_parse_cache_flags(cache, &flags); |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1275 | if (ret < 0) { |
| 1276 | error_report("Invalid cache option: %s", cache); |
| 1277 | return -1; |
| 1278 | } |
| 1279 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1280 | /* |
| 1281 | * Open the images. |
| 1282 | * |
| 1283 | * Ignore the old backing file for unsafe rebase in case we want to correct |
| 1284 | * the reference to a renamed or moved backing file. |
| 1285 | */ |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1286 | bs = bdrv_new_open(filename, fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1287 | if (!bs) { |
| 1288 | return 1; |
| 1289 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1290 | |
| 1291 | /* Find the right drivers for the backing files */ |
| 1292 | old_backing_drv = NULL; |
| 1293 | new_backing_drv = NULL; |
| 1294 | |
| 1295 | if (!unsafe && bs->backing_format[0] != '\0') { |
| 1296 | old_backing_drv = bdrv_find_format(bs->backing_format); |
| 1297 | if (old_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1298 | error_report("Invalid format name: '%s'", bs->backing_format); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1299 | ret = -1; |
| 1300 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1301 | } |
| 1302 | } |
| 1303 | |
| 1304 | if (out_basefmt != NULL) { |
| 1305 | new_backing_drv = bdrv_find_format(out_basefmt); |
| 1306 | if (new_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1307 | error_report("Invalid format name: '%s'", out_basefmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1308 | ret = -1; |
| 1309 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1310 | } |
| 1311 | } |
| 1312 | |
| 1313 | /* For safe rebasing we need to compare old and new backing file */ |
| 1314 | if (unsafe) { |
| 1315 | /* Make the compiler happy */ |
| 1316 | bs_old_backing = NULL; |
| 1317 | bs_new_backing = NULL; |
| 1318 | } else { |
| 1319 | char backing_name[1024]; |
| 1320 | |
| 1321 | bs_old_backing = bdrv_new("old_backing"); |
| 1322 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1323 | ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS, |
| 1324 | old_backing_drv); |
| 1325 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1326 | error_report("Could not open old backing file '%s'", backing_name); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1327 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1328 | } |
| 1329 | |
| 1330 | bs_new_backing = bdrv_new("new_backing"); |
Kevin Wolf | cdbae85 | 2010-08-17 18:58:55 +0200 | [diff] [blame] | 1331 | ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS, |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1332 | new_backing_drv); |
| 1333 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1334 | error_report("Could not open new backing file '%s'", out_baseimg); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1335 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1336 | } |
| 1337 | } |
| 1338 | |
| 1339 | /* |
| 1340 | * Check each unallocated cluster in the COW file. If it is unallocated, |
| 1341 | * accesses go to the backing file. We must therefore compare this cluster |
| 1342 | * in the old and new backing file, and if they differ we need to copy it |
| 1343 | * from the old backing file into the COW file. |
| 1344 | * |
| 1345 | * If qemu-img crashes during this step, no harm is done. The content of |
| 1346 | * the image is the same as the original one at any time. |
| 1347 | */ |
| 1348 | if (!unsafe) { |
| 1349 | uint64_t num_sectors; |
| 1350 | uint64_t sector; |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1351 | int n; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1352 | uint8_t * buf_old; |
| 1353 | uint8_t * buf_new; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1354 | float local_progress; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1355 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame^] | 1356 | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
| 1357 | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1358 | |
| 1359 | bdrv_get_geometry(bs, &num_sectors); |
| 1360 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1361 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 1362 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1363 | for (sector = 0; sector < num_sectors; sector += n) { |
| 1364 | |
| 1365 | /* How many sectors can we handle with the next read? */ |
| 1366 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
| 1367 | n = (IO_BUF_SIZE / 512); |
| 1368 | } else { |
| 1369 | n = num_sectors - sector; |
| 1370 | } |
| 1371 | |
| 1372 | /* If the cluster is allocated, we don't need to take action */ |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1373 | ret = bdrv_is_allocated(bs, sector, n, &n); |
| 1374 | if (ret) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1375 | continue; |
| 1376 | } |
| 1377 | |
| 1378 | /* Read old and new backing file */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1379 | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
| 1380 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1381 | error_report("error while reading from old backing file"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1382 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1383 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1384 | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
| 1385 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1386 | error_report("error while reading from new backing file"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1387 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1388 | } |
| 1389 | |
| 1390 | /* If they differ, we need to write to the COW file */ |
| 1391 | uint64_t written = 0; |
| 1392 | |
| 1393 | while (written < n) { |
| 1394 | int pnum; |
| 1395 | |
| 1396 | if (compare_sectors(buf_old + written * 512, |
Kevin Wolf | 60b1bd4 | 2010-02-17 12:32:59 +0100 | [diff] [blame] | 1397 | buf_new + written * 512, n - written, &pnum)) |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1398 | { |
| 1399 | ret = bdrv_write(bs, sector + written, |
| 1400 | buf_old + written * 512, pnum); |
| 1401 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1402 | error_report("Error while writing to COW image: %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1403 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1404 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1405 | } |
| 1406 | } |
| 1407 | |
| 1408 | written += pnum; |
| 1409 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1410 | qemu_progress_print(local_progress, 100); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1411 | } |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1412 | |
Kevin Wolf | bb1c059 | 2011-08-08 14:09:12 +0200 | [diff] [blame^] | 1413 | qemu_vfree(buf_old); |
| 1414 | qemu_vfree(buf_new); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1415 | } |
| 1416 | |
| 1417 | /* |
| 1418 | * Change the backing file. All clusters that are different from the old |
| 1419 | * backing file are overwritten in the COW file now, so the visible content |
| 1420 | * doesn't change when we switch the backing file. |
| 1421 | */ |
| 1422 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
| 1423 | if (ret == -ENOSPC) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1424 | error_report("Could not change the backing file to '%s': No " |
| 1425 | "space left in the file header", out_baseimg); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1426 | } else if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1427 | error_report("Could not change the backing file to '%s': %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1428 | out_baseimg, strerror(-ret)); |
| 1429 | } |
| 1430 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1431 | qemu_progress_print(100, 0); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1432 | /* |
| 1433 | * TODO At this point it is possible to check if any clusters that are |
| 1434 | * allocated in the COW file are the same in the backing file. If so, they |
| 1435 | * could be dropped from the COW file. Don't do this before switching the |
| 1436 | * backing file, in case of a crash this would lead to corruption. |
| 1437 | */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1438 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1439 | qemu_progress_end(); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1440 | /* Cleanup */ |
| 1441 | if (!unsafe) { |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 1442 | if (bs_old_backing != NULL) { |
| 1443 | bdrv_delete(bs_old_backing); |
| 1444 | } |
| 1445 | if (bs_new_backing != NULL) { |
| 1446 | bdrv_delete(bs_new_backing); |
| 1447 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1448 | } |
| 1449 | |
| 1450 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1451 | if (ret) { |
| 1452 | return 1; |
| 1453 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1454 | return 0; |
| 1455 | } |
| 1456 | |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1457 | static int img_resize(int argc, char **argv) |
| 1458 | { |
| 1459 | int c, ret, relative; |
| 1460 | const char *filename, *fmt, *size; |
| 1461 | int64_t n, total_size; |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1462 | BlockDriverState *bs = NULL; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1463 | QEMUOptionParameter *param; |
| 1464 | QEMUOptionParameter resize_options[] = { |
| 1465 | { |
| 1466 | .name = BLOCK_OPT_SIZE, |
| 1467 | .type = OPT_SIZE, |
| 1468 | .help = "Virtual disk size" |
| 1469 | }, |
| 1470 | { NULL } |
| 1471 | }; |
| 1472 | |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1473 | /* Remove size from argv manually so that negative numbers are not treated |
| 1474 | * as options by getopt. */ |
| 1475 | if (argc < 3) { |
| 1476 | help(); |
| 1477 | return 1; |
| 1478 | } |
| 1479 | |
| 1480 | size = argv[--argc]; |
| 1481 | |
| 1482 | /* Parse getopt arguments */ |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1483 | fmt = NULL; |
| 1484 | for(;;) { |
| 1485 | c = getopt(argc, argv, "f:h"); |
| 1486 | if (c == -1) { |
| 1487 | break; |
| 1488 | } |
| 1489 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1490 | case '?': |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1491 | case 'h': |
| 1492 | help(); |
| 1493 | break; |
| 1494 | case 'f': |
| 1495 | fmt = optarg; |
| 1496 | break; |
| 1497 | } |
| 1498 | } |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1499 | if (optind >= argc) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1500 | help(); |
| 1501 | } |
| 1502 | filename = argv[optind++]; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1503 | |
| 1504 | /* Choose grow, shrink, or absolute resize mode */ |
| 1505 | switch (size[0]) { |
| 1506 | case '+': |
| 1507 | relative = 1; |
| 1508 | size++; |
| 1509 | break; |
| 1510 | case '-': |
| 1511 | relative = -1; |
| 1512 | size++; |
| 1513 | break; |
| 1514 | default: |
| 1515 | relative = 0; |
| 1516 | break; |
| 1517 | } |
| 1518 | |
| 1519 | /* Parse size */ |
| 1520 | param = parse_option_parameters("", resize_options, NULL); |
| 1521 | if (set_option_parameter(param, BLOCK_OPT_SIZE, size)) { |
| 1522 | /* Error message already printed when size parsing fails */ |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1523 | ret = -1; |
| 1524 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1525 | } |
| 1526 | n = get_option_parameter(param, BLOCK_OPT_SIZE)->value.n; |
| 1527 | free_option_parameters(param); |
| 1528 | |
| 1529 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1530 | if (!bs) { |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1531 | ret = -1; |
| 1532 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1533 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1534 | |
| 1535 | if (relative) { |
| 1536 | total_size = bdrv_getlength(bs) + n * relative; |
| 1537 | } else { |
| 1538 | total_size = n; |
| 1539 | } |
| 1540 | if (total_size <= 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1541 | error_report("New image size must be positive"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1542 | ret = -1; |
| 1543 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1544 | } |
| 1545 | |
| 1546 | ret = bdrv_truncate(bs, total_size); |
| 1547 | switch (ret) { |
| 1548 | case 0: |
| 1549 | printf("Image resized.\n"); |
| 1550 | break; |
| 1551 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1552 | error_report("This image format does not support resize"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1553 | break; |
| 1554 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1555 | error_report("Image is read-only"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1556 | break; |
| 1557 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1558 | error_report("Error resizing image (%d)", -ret); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1559 | break; |
| 1560 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1561 | out: |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1562 | if (bs) { |
| 1563 | bdrv_delete(bs); |
| 1564 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1565 | if (ret) { |
| 1566 | return 1; |
| 1567 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1568 | return 0; |
| 1569 | } |
| 1570 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1571 | static const img_cmd_t img_cmds[] = { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1572 | #define DEF(option, callback, arg_string) \ |
| 1573 | { option, callback }, |
| 1574 | #include "qemu-img-cmds.h" |
| 1575 | #undef DEF |
| 1576 | #undef GEN_DOCS |
| 1577 | { NULL, NULL, }, |
| 1578 | }; |
| 1579 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1580 | int main(int argc, char **argv) |
| 1581 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1582 | const img_cmd_t *cmd; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1583 | const char *cmdname; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1584 | |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 1585 | error_set_progname(argv[0]); |
| 1586 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1587 | bdrv_init(); |
| 1588 | if (argc < 2) |
| 1589 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1590 | cmdname = argv[1]; |
aurel32 | 8f9b157 | 2009-02-09 18:14:31 +0000 | [diff] [blame] | 1591 | argc--; argv++; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1592 | |
| 1593 | /* find the command */ |
| 1594 | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
| 1595 | if (!strcmp(cmdname, cmd->name)) { |
| 1596 | return cmd->handler(argc, argv); |
| 1597 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1598 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1599 | |
| 1600 | /* not found */ |
| 1601 | help(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1602 | return 0; |
| 1603 | } |