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" |
| 69 | " options are: 'none', 'writeback' (default), 'writethrough' and 'unsafe'\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 70 | " 'size' is the disk image size in bytes. Optional suffixes\n" |
| 71 | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n" |
| 72 | " and T (terabyte, 1024G) are supported. 'b' is ignored.\n" |
| 73 | " 'output_filename' is the destination disk image filename\n" |
| 74 | " 'output_fmt' is the destination format\n" |
| 75 | " 'options' is a comma separated list of format specific options in a\n" |
| 76 | " name=value format. Use -o ? for an overview of the options supported by the\n" |
| 77 | " used format\n" |
| 78 | " '-c' indicates that target image must be compressed (qcow format only)\n" |
| 79 | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n" |
| 80 | " match exactly. The image doesn't need a working backing file before\n" |
| 81 | " rebasing in this case (useful for renaming the backing file)\n" |
| 82 | " '-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] | 83 | " '-p' show progress of command (only certain commands)\n" |
malc | 3f020d7 | 2010-02-08 12:04:56 +0300 | [diff] [blame] | 84 | "\n" |
| 85 | "Parameters to snapshot subcommand:\n" |
| 86 | " 'snapshot' is the name of the snapshot to create, apply or delete\n" |
| 87 | " '-a' applies a snapshot (revert disk to saved state)\n" |
| 88 | " '-c' creates a snapshot\n" |
| 89 | " '-d' deletes a snapshot\n" |
Paolo Bonzini | e00291c | 2010-02-04 16:49:56 +0100 | [diff] [blame] | 90 | " '-l' lists all snapshots in the given image\n"; |
| 91 | |
| 92 | printf("%s\nSupported formats:", help_msg); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 93 | bdrv_iterate_format(format_print, NULL); |
| 94 | printf("\n"); |
| 95 | exit(1); |
| 96 | } |
| 97 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 98 | #if defined(WIN32) |
| 99 | /* XXX: put correct support for win32 */ |
| 100 | static int read_password(char *buf, int buf_size) |
| 101 | { |
| 102 | int c, i; |
| 103 | printf("Password: "); |
| 104 | fflush(stdout); |
| 105 | i = 0; |
| 106 | for(;;) { |
| 107 | c = getchar(); |
| 108 | if (c == '\n') |
| 109 | break; |
| 110 | if (i < (buf_size - 1)) |
| 111 | buf[i++] = c; |
| 112 | } |
| 113 | buf[i] = '\0'; |
| 114 | return 0; |
| 115 | } |
| 116 | |
| 117 | #else |
| 118 | |
| 119 | #include <termios.h> |
| 120 | |
| 121 | static struct termios oldtty; |
| 122 | |
| 123 | static void term_exit(void) |
| 124 | { |
| 125 | tcsetattr (0, TCSANOW, &oldtty); |
| 126 | } |
| 127 | |
| 128 | static void term_init(void) |
| 129 | { |
| 130 | struct termios tty; |
| 131 | |
| 132 | tcgetattr (0, &tty); |
| 133 | oldtty = tty; |
| 134 | |
| 135 | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
| 136 | |INLCR|IGNCR|ICRNL|IXON); |
| 137 | tty.c_oflag |= OPOST; |
| 138 | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
| 139 | tty.c_cflag &= ~(CSIZE|PARENB); |
| 140 | tty.c_cflag |= CS8; |
| 141 | tty.c_cc[VMIN] = 1; |
| 142 | tty.c_cc[VTIME] = 0; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 143 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 144 | tcsetattr (0, TCSANOW, &tty); |
| 145 | |
| 146 | atexit(term_exit); |
| 147 | } |
| 148 | |
pbrook | 3f379ab | 2007-11-11 03:33:13 +0000 | [diff] [blame] | 149 | static int read_password(char *buf, int buf_size) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 150 | { |
| 151 | uint8_t ch; |
| 152 | int i, ret; |
| 153 | |
| 154 | printf("password: "); |
| 155 | fflush(stdout); |
| 156 | term_init(); |
| 157 | i = 0; |
| 158 | for(;;) { |
| 159 | ret = read(0, &ch, 1); |
| 160 | if (ret == -1) { |
| 161 | if (errno == EAGAIN || errno == EINTR) { |
| 162 | continue; |
| 163 | } else { |
| 164 | ret = -1; |
| 165 | break; |
| 166 | } |
| 167 | } else if (ret == 0) { |
| 168 | ret = -1; |
| 169 | break; |
| 170 | } else { |
| 171 | if (ch == '\r') { |
| 172 | ret = 0; |
| 173 | break; |
| 174 | } |
| 175 | if (i < (buf_size - 1)) |
| 176 | buf[i++] = ch; |
| 177 | } |
| 178 | } |
| 179 | term_exit(); |
| 180 | buf[i] = '\0'; |
| 181 | printf("\n"); |
| 182 | return ret; |
| 183 | } |
| 184 | #endif |
| 185 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 186 | static int set_cache_flag(const char *mode, int *flags) |
| 187 | { |
| 188 | *flags &= ~BDRV_O_CACHE_MASK; |
| 189 | |
| 190 | if (!strcmp(mode, "none") || !strcmp(mode, "off")) { |
| 191 | *flags |= BDRV_O_CACHE_WB; |
| 192 | *flags |= BDRV_O_NOCACHE; |
| 193 | } else if (!strcmp(mode, "writeback")) { |
| 194 | *flags |= BDRV_O_CACHE_WB; |
| 195 | } else if (!strcmp(mode, "unsafe")) { |
| 196 | *flags |= BDRV_O_CACHE_WB; |
| 197 | *flags |= BDRV_O_NO_FLUSH; |
| 198 | } else if (!strcmp(mode, "writethrough")) { |
| 199 | /* this is the default */ |
| 200 | } else { |
| 201 | return -1; |
| 202 | } |
| 203 | |
| 204 | return 0; |
| 205 | } |
| 206 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 207 | static int print_block_option_help(const char *filename, const char *fmt) |
| 208 | { |
| 209 | BlockDriver *drv, *proto_drv; |
| 210 | QEMUOptionParameter *create_options = NULL; |
| 211 | |
| 212 | /* Find driver and parse its options */ |
| 213 | drv = bdrv_find_format(fmt); |
| 214 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 215 | error_report("Unknown file format '%s'", fmt); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 216 | return 1; |
| 217 | } |
| 218 | |
| 219 | proto_drv = bdrv_find_protocol(filename); |
| 220 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 221 | error_report("Unknown protocol '%s'", filename); |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 222 | return 1; |
| 223 | } |
| 224 | |
| 225 | create_options = append_option_parameters(create_options, |
| 226 | drv->create_options); |
| 227 | create_options = append_option_parameters(create_options, |
| 228 | proto_drv->create_options); |
| 229 | print_option_help(create_options); |
| 230 | free_option_parameters(create_options); |
| 231 | return 0; |
| 232 | } |
| 233 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 234 | static BlockDriverState *bdrv_new_open(const char *filename, |
Sheng Yang | 9bc378c | 2010-01-29 10:15:06 +0800 | [diff] [blame] | 235 | const char *fmt, |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 236 | int flags) |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 237 | { |
| 238 | BlockDriverState *bs; |
| 239 | BlockDriver *drv; |
| 240 | char password[256]; |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 241 | int ret; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 242 | |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 243 | bs = bdrv_new("image"); |
Kevin Wolf | ad71713 | 2010-12-16 15:37:41 +0100 | [diff] [blame] | 244 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 245 | if (fmt) { |
| 246 | drv = bdrv_find_format(fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 247 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 248 | error_report("Unknown file format '%s'", fmt); |
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 | } else { |
| 252 | drv = NULL; |
| 253 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 254 | |
| 255 | ret = bdrv_open(bs, filename, flags, drv); |
| 256 | if (ret < 0) { |
| 257 | error_report("Could not open '%s': %s", filename, strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 258 | goto fail; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 259 | } |
Kevin Wolf | b9eaf9e | 2011-02-09 11:25:53 +0100 | [diff] [blame] | 260 | |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 261 | if (bdrv_is_encrypted(bs)) { |
| 262 | printf("Disk image '%s' is encrypted.\n", filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 263 | if (read_password(password, sizeof(password)) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 264 | error_report("No password given"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 265 | goto fail; |
| 266 | } |
| 267 | if (bdrv_set_key(bs, password) < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 268 | error_report("invalid password"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 269 | goto fail; |
| 270 | } |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 271 | } |
| 272 | return bs; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 273 | fail: |
| 274 | if (bs) { |
| 275 | bdrv_delete(bs); |
| 276 | } |
| 277 | return NULL; |
bellard | 75c2380 | 2004-08-27 21:28:58 +0000 | [diff] [blame] | 278 | } |
| 279 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 280 | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 281 | const char *base_filename, |
| 282 | const char *base_fmt) |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 283 | { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 284 | if (base_filename) { |
| 285 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 286 | error_report("Backing file not supported for file format '%s'", |
| 287 | fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 288 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 289 | } |
| 290 | } |
| 291 | if (base_fmt) { |
| 292 | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 293 | error_report("Backing file format not supported for file " |
| 294 | "format '%s'", fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 295 | return -1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 296 | } |
| 297 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 298 | return 0; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 299 | } |
| 300 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 301 | static int img_create(int argc, char **argv) |
| 302 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 303 | int c, ret = 0; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 304 | uint64_t img_size = -1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 305 | const char *fmt = "raw"; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 306 | const char *base_fmt = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 307 | const char *filename; |
| 308 | const char *base_filename = NULL; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 309 | char *options = NULL; |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 310 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 311 | for(;;) { |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 312 | c = getopt(argc, argv, "F:b:f:he6o:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 313 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 314 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 315 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 316 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 317 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 318 | case 'h': |
| 319 | help(); |
| 320 | break; |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 321 | case 'F': |
| 322 | base_fmt = optarg; |
| 323 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 324 | case 'b': |
| 325 | base_filename = optarg; |
| 326 | break; |
| 327 | case 'f': |
| 328 | fmt = optarg; |
| 329 | break; |
| 330 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 331 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 332 | "encryption\' instead!"); |
| 333 | return 1; |
ths | d8871c5 | 2007-10-24 16:11:42 +0000 | [diff] [blame] | 334 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 335 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 336 | "compat6\' instead!"); |
| 337 | return 1; |
Kevin Wolf | 9ea2ea7 | 2009-05-18 16:42:11 +0200 | [diff] [blame] | 338 | case 'o': |
| 339 | options = optarg; |
| 340 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 341 | } |
| 342 | } |
aliguori | 9230eaf | 2009-03-28 17:55:19 +0000 | [diff] [blame] | 343 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 344 | /* Get the filename */ |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 345 | if (optind >= argc) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 346 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 347 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 348 | filename = argv[optind++]; |
| 349 | |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 350 | /* Get image size, if specified */ |
| 351 | if (optind < argc) { |
Jes Sorensen | 70b4f4b | 2011-01-05 11:41:02 +0100 | [diff] [blame] | 352 | int64_t sval; |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 353 | sval = strtosz_suffix(argv[optind++], NULL, STRTOSZ_DEFSUFFIX_B); |
| 354 | if (sval < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 355 | 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] | 356 | "T suffixes for "); |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 357 | error_report("kilobytes, megabytes, gigabytes and terabytes."); |
Jes Sorensen | 1da7cfb | 2010-12-09 14:17:25 +0100 | [diff] [blame] | 358 | ret = -1; |
| 359 | goto out; |
| 360 | } |
| 361 | img_size = (uint64_t)sval; |
| 362 | } |
| 363 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 364 | if (options && !strcmp(options, "?")) { |
| 365 | ret = print_block_option_help(filename, fmt); |
| 366 | goto out; |
| 367 | } |
| 368 | |
Jes Sorensen | f88e1a4 | 2010-12-16 13:52:15 +0100 | [diff] [blame] | 369 | ret = bdrv_img_create(filename, fmt, base_filename, base_fmt, |
| 370 | options, img_size, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 371 | out: |
| 372 | if (ret) { |
| 373 | return 1; |
| 374 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 375 | return 0; |
| 376 | } |
| 377 | |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 378 | /* |
| 379 | * Checks an image for consistency. Exit codes: |
| 380 | * |
| 381 | * 0 - Check completed, image is good |
| 382 | * 1 - Check not completed because of internal errors |
| 383 | * 2 - Check completed, image is corrupted |
| 384 | * 3 - Check completed, image has leaked clusters, but is good otherwise |
| 385 | */ |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 386 | static int img_check(int argc, char **argv) |
| 387 | { |
| 388 | int c, ret; |
| 389 | const char *filename, *fmt; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 390 | BlockDriverState *bs; |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 391 | BdrvCheckResult result; |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 392 | |
| 393 | fmt = NULL; |
| 394 | for(;;) { |
| 395 | c = getopt(argc, argv, "f:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 396 | if (c == -1) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 397 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 398 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 399 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 400 | case '?': |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 401 | case 'h': |
| 402 | help(); |
| 403 | break; |
| 404 | case 'f': |
| 405 | fmt = optarg; |
| 406 | break; |
| 407 | } |
| 408 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 409 | if (optind >= argc) { |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 410 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 411 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 412 | filename = argv[optind++]; |
| 413 | |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 414 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 415 | if (!bs) { |
| 416 | return 1; |
| 417 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 418 | ret = bdrv_check(bs, &result); |
| 419 | |
| 420 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 421 | error_report("This image format does not support checks"); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 422 | bdrv_delete(bs); |
| 423 | return 1; |
| 424 | } |
| 425 | |
| 426 | if (!(result.corruptions || result.leaks || result.check_errors)) { |
| 427 | printf("No errors were found on the image.\n"); |
| 428 | } else { |
| 429 | if (result.corruptions) { |
| 430 | printf("\n%d errors were found on the image.\n" |
| 431 | "Data may be corrupted, or further writes to the image " |
| 432 | "may corrupt it.\n", |
| 433 | result.corruptions); |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 434 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 435 | |
| 436 | if (result.leaks) { |
| 437 | printf("\n%d leaked clusters were found on the image.\n" |
| 438 | "This means waste of disk space, but no harm to data.\n", |
| 439 | result.leaks); |
| 440 | } |
| 441 | |
| 442 | if (result.check_errors) { |
| 443 | printf("\n%d internal errors have occurred during the check.\n", |
| 444 | result.check_errors); |
| 445 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 446 | } |
| 447 | |
| 448 | bdrv_delete(bs); |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 449 | |
| 450 | if (ret < 0 || result.check_errors) { |
| 451 | printf("\nAn error has occurred during the check: %s\n" |
| 452 | "The check is not complete and may have missed error.\n", |
| 453 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 454 | return 1; |
| 455 | } |
Kevin Wolf | e076f33 | 2010-06-29 11:43:13 +0200 | [diff] [blame] | 456 | |
| 457 | if (result.corruptions) { |
| 458 | return 2; |
| 459 | } else if (result.leaks) { |
| 460 | return 3; |
| 461 | } else { |
| 462 | return 0; |
| 463 | } |
aliguori | 1585969 | 2009-04-21 23:11:53 +0000 | [diff] [blame] | 464 | } |
| 465 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 466 | static int img_commit(int argc, char **argv) |
| 467 | { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 468 | int c, ret, flags; |
| 469 | const char *filename, *fmt, *cache; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 470 | BlockDriverState *bs; |
| 471 | |
| 472 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 473 | cache = BDRV_DEFAULT_CACHE; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 474 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 475 | c = getopt(argc, argv, "f:ht:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 476 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 477 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 478 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 479 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 480 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 481 | case 'h': |
| 482 | help(); |
| 483 | break; |
| 484 | case 'f': |
| 485 | fmt = optarg; |
| 486 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 487 | case 't': |
| 488 | cache = optarg; |
| 489 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 490 | } |
| 491 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 492 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 493 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 494 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 495 | filename = argv[optind++]; |
| 496 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 497 | flags = BDRV_O_RDWR; |
| 498 | ret = set_cache_flag(cache, &flags); |
| 499 | if (ret < 0) { |
| 500 | error_report("Invalid cache option: %s", cache); |
| 501 | return -1; |
| 502 | } |
| 503 | |
| 504 | bs = bdrv_new_open(filename, fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 505 | if (!bs) { |
| 506 | return 1; |
| 507 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 508 | ret = bdrv_commit(bs); |
| 509 | switch(ret) { |
| 510 | case 0: |
| 511 | printf("Image committed.\n"); |
| 512 | break; |
| 513 | case -ENOENT: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 514 | error_report("No disk inserted"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 515 | break; |
| 516 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 517 | error_report("Image is read-only"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 518 | break; |
| 519 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 520 | error_report("Image is already committed"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 521 | break; |
| 522 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 523 | error_report("Error while committing image"); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 524 | break; |
| 525 | } |
| 526 | |
| 527 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 528 | if (ret) { |
| 529 | return 1; |
| 530 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 531 | return 0; |
| 532 | } |
| 533 | |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 534 | /* |
| 535 | * Checks whether the sector is not a zero sector. |
| 536 | * |
| 537 | * Attention! The len must be a multiple of 4 * sizeof(long) due to |
| 538 | * restriction of optimizations in this function. |
| 539 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 540 | static int is_not_zero(const uint8_t *sector, int len) |
| 541 | { |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 542 | /* |
| 543 | * Use long as the biggest available internal data type that fits into the |
| 544 | * CPU register and unroll the loop to smooth out the effect of memory |
| 545 | * latency. |
| 546 | */ |
| 547 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 548 | int i; |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 549 | long d0, d1, d2, d3; |
| 550 | const long * const data = (const long *) sector; |
| 551 | |
| 552 | len /= sizeof(long); |
| 553 | |
| 554 | for(i = 0; i < len; i += 4) { |
| 555 | d0 = data[i + 0]; |
| 556 | d1 = data[i + 1]; |
| 557 | d2 = data[i + 2]; |
| 558 | d3 = data[i + 3]; |
| 559 | |
| 560 | if (d0 || d1 || d2 || d3) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 561 | return 1; |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 562 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 563 | } |
Dmitry Konishchev | f6a00aa | 2011-05-18 15:03:59 +0400 | [diff] [blame] | 564 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 565 | return 0; |
| 566 | } |
| 567 | |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 568 | /* |
| 569 | * Returns true iff the first sector pointed to by 'buf' contains at least |
| 570 | * a non-NUL byte. |
| 571 | * |
| 572 | * 'pnum' is set to the number of sectors (including and immediately following |
| 573 | * the first one) that are known to be in the same allocated/unallocated state. |
| 574 | */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 575 | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
| 576 | { |
| 577 | int v, i; |
| 578 | |
| 579 | if (n <= 0) { |
| 580 | *pnum = 0; |
| 581 | return 0; |
| 582 | } |
| 583 | v = is_not_zero(buf, 512); |
| 584 | for(i = 1; i < n; i++) { |
| 585 | buf += 512; |
| 586 | if (v != is_not_zero(buf, 512)) |
| 587 | break; |
| 588 | } |
| 589 | *pnum = i; |
| 590 | return v; |
| 591 | } |
| 592 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 593 | /* |
| 594 | * Compares two buffers sector by sector. Returns 0 if the first sector of both |
| 595 | * buffers matches, non-zero otherwise. |
| 596 | * |
| 597 | * pnum is set to the number of sectors (including and immediately following |
| 598 | * the first one) that are known to have the same comparison result |
| 599 | */ |
| 600 | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
| 601 | int *pnum) |
| 602 | { |
| 603 | int res, i; |
| 604 | |
| 605 | if (n <= 0) { |
| 606 | *pnum = 0; |
| 607 | return 0; |
| 608 | } |
| 609 | |
| 610 | res = !!memcmp(buf1, buf2, 512); |
| 611 | for(i = 1; i < n; i++) { |
| 612 | buf1 += 512; |
| 613 | buf2 += 512; |
| 614 | |
| 615 | if (!!memcmp(buf1, buf2, 512) != res) { |
| 616 | break; |
| 617 | } |
| 618 | } |
| 619 | |
| 620 | *pnum = i; |
| 621 | return res; |
| 622 | } |
| 623 | |
Kevin Wolf | 80ee15a | 2009-09-15 12:30:43 +0200 | [diff] [blame] | 624 | #define IO_BUF_SIZE (2 * 1024 * 1024) |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 625 | |
| 626 | static int img_convert(int argc, char **argv) |
| 627 | { |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 628 | 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] | 629 | int progress = 0, flags; |
| 630 | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 631 | BlockDriver *drv, *proto_drv; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 632 | BlockDriverState **bs = NULL, *out_bs = NULL; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 633 | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
| 634 | uint64_t bs_sectors; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 635 | uint8_t * buf = NULL; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 636 | const uint8_t *buf1; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 637 | BlockDriverInfo bdi; |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 638 | QEMUOptionParameter *param = NULL, *create_options = NULL; |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 639 | QEMUOptionParameter *out_baseimg_param; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 640 | char *options = NULL; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 641 | const char *snapshot_name = NULL; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 642 | float local_progress; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 643 | |
| 644 | fmt = NULL; |
| 645 | out_fmt = "raw"; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 646 | cache = "unsafe"; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 647 | out_baseimg = NULL; |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 648 | compress = 0; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 649 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 650 | c = getopt(argc, argv, "f:O:B:s:hce6o:pt:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 651 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 652 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 653 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 654 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 655 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 656 | case 'h': |
| 657 | help(); |
| 658 | break; |
| 659 | case 'f': |
| 660 | fmt = optarg; |
| 661 | break; |
| 662 | case 'O': |
| 663 | out_fmt = optarg; |
| 664 | break; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 665 | case 'B': |
| 666 | out_baseimg = optarg; |
| 667 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 668 | case 'c': |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 669 | compress = 1; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 670 | break; |
| 671 | case 'e': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 672 | error_report("option -e is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 673 | "encryption\' instead!"); |
| 674 | return 1; |
ths | ec36ba1 | 2007-09-16 21:59:02 +0000 | [diff] [blame] | 675 | case '6': |
Markus Armbruster | 9d42e15 | 2011-06-22 14:03:55 +0200 | [diff] [blame] | 676 | error_report("option -6 is deprecated, please use \'-o " |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 677 | "compat6\' instead!"); |
| 678 | return 1; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 679 | case 'o': |
| 680 | options = optarg; |
| 681 | break; |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 682 | case 's': |
| 683 | snapshot_name = optarg; |
| 684 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 685 | case 'p': |
| 686 | progress = 1; |
| 687 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 688 | case 't': |
| 689 | cache = optarg; |
| 690 | break; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 691 | } |
| 692 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 693 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 694 | bs_n = argc - optind - 1; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 695 | if (bs_n < 1) { |
| 696 | help(); |
| 697 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 698 | |
| 699 | out_filename = argv[argc - 1]; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 700 | |
Jes Sorensen | 4ac8aac | 2010-12-06 15:25:38 +0100 | [diff] [blame] | 701 | if (options && !strcmp(options, "?")) { |
| 702 | ret = print_block_option_help(out_filename, out_fmt); |
| 703 | goto out; |
| 704 | } |
| 705 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 706 | if (bs_n > 1 && out_baseimg) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 707 | error_report("-B makes no sense when concatenating multiple input " |
| 708 | "images"); |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 709 | ret = -1; |
| 710 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 711 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 712 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 713 | qemu_progress_init(progress, 2.0); |
| 714 | qemu_progress_print(0, 100); |
| 715 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 716 | bs = g_malloc0(bs_n * sizeof(BlockDriverState *)); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 717 | |
| 718 | total_sectors = 0; |
| 719 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 720 | 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] | 721 | if (!bs[bs_i]) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 722 | error_report("Could not open '%s'", argv[optind + bs_i]); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 723 | ret = -1; |
| 724 | goto out; |
| 725 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 726 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 727 | total_sectors += bs_sectors; |
| 728 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 729 | |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 730 | if (snapshot_name != NULL) { |
| 731 | if (bs_n > 1) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 732 | error_report("No support for concatenating multiple snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 733 | ret = -1; |
| 734 | goto out; |
| 735 | } |
| 736 | if (bdrv_snapshot_load_tmp(bs[0], snapshot_name) < 0) { |
Markus Armbruster | 6daf194 | 2011-06-22 14:03:54 +0200 | [diff] [blame] | 737 | error_report("Failed to load snapshot"); |
edison | 51ef672 | 2010-09-21 19:58:41 -0700 | [diff] [blame] | 738 | ret = -1; |
| 739 | goto out; |
| 740 | } |
| 741 | } |
| 742 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 743 | /* Find driver and parse its options */ |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 744 | drv = bdrv_find_format(out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 745 | if (!drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 746 | error_report("Unknown file format '%s'", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 747 | ret = -1; |
| 748 | goto out; |
| 749 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 750 | |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 751 | proto_drv = bdrv_find_protocol(out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 752 | if (!proto_drv) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 753 | error_report("Unknown protocol '%s'", out_filename); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 754 | ret = -1; |
| 755 | goto out; |
| 756 | } |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 757 | |
| 758 | create_options = append_option_parameters(create_options, |
| 759 | drv->create_options); |
| 760 | create_options = append_option_parameters(create_options, |
| 761 | proto_drv->create_options); |
Kevin Wolf | db08adf | 2009-06-04 15:39:38 +0200 | [diff] [blame] | 762 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 763 | if (options) { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 764 | param = parse_option_parameters(options, create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 765 | if (param == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 766 | error_report("Invalid options for file format '%s'.", out_fmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 767 | ret = -1; |
| 768 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 769 | } |
| 770 | } else { |
MORITA Kazutaka | b50cbab | 2010-05-26 11:35:36 +0900 | [diff] [blame] | 771 | param = parse_option_parameters("", create_options, param); |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 772 | } |
| 773 | |
| 774 | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512); |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 775 | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 776 | if (ret < 0) { |
| 777 | goto out; |
| 778 | } |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 779 | |
Kevin Wolf | a18953f | 2010-10-14 15:46:04 +0200 | [diff] [blame] | 780 | /* Get backing file name if -o backing_file was used */ |
| 781 | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
| 782 | if (out_baseimg_param) { |
| 783 | out_baseimg = out_baseimg_param->value.s; |
| 784 | } |
| 785 | |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 786 | /* Check if compression is supported */ |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 787 | if (compress) { |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 788 | QEMUOptionParameter *encryption = |
| 789 | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
| 790 | |
| 791 | if (!drv->bdrv_write_compressed) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 792 | error_report("Compression not supported for this file format"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 793 | ret = -1; |
| 794 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 795 | } |
| 796 | |
| 797 | if (encryption && encryption->value.n) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 798 | error_report("Compression and encryption not supported at " |
| 799 | "the same time"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 800 | ret = -1; |
| 801 | goto out; |
Kevin Wolf | efa84d4 | 2009-05-18 16:42:12 +0200 | [diff] [blame] | 802 | } |
| 803 | } |
| 804 | |
| 805 | /* Create the new image */ |
| 806 | ret = bdrv_create(drv, out_filename, param); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 807 | if (ret < 0) { |
| 808 | if (ret == -ENOTSUP) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 809 | error_report("Formatting not supported for file format '%s'", |
| 810 | out_fmt); |
aurel32 | 6e9ea0c | 2009-04-15 14:42:46 +0000 | [diff] [blame] | 811 | } else if (ret == -EFBIG) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 812 | error_report("The image size is too large for file format '%s'", |
| 813 | out_fmt); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 814 | } else { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 815 | error_report("%s: error while converting %s: %s", |
| 816 | out_filename, out_fmt, strerror(-ret)); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 817 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 818 | goto out; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 819 | } |
ths | 3b46e62 | 2007-09-17 08:09:54 +0000 | [diff] [blame] | 820 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 821 | flags = BDRV_O_RDWR; |
| 822 | ret = set_cache_flag(cache, &flags); |
| 823 | if (ret < 0) { |
| 824 | error_report("Invalid cache option: %s", cache); |
| 825 | return -1; |
| 826 | } |
| 827 | |
| 828 | out_bs = bdrv_new_open(out_filename, out_fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 829 | if (!out_bs) { |
| 830 | ret = -1; |
| 831 | goto out; |
| 832 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 833 | |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 834 | bs_i = 0; |
| 835 | bs_offset = 0; |
| 836 | bdrv_get_geometry(bs[0], &bs_sectors); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 837 | buf = g_malloc(IO_BUF_SIZE); |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 838 | |
Jes Sorensen | eec77d9 | 2010-12-07 17:44:34 +0100 | [diff] [blame] | 839 | if (compress) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 840 | ret = bdrv_get_info(out_bs, &bdi); |
| 841 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 842 | error_report("could not get block driver info"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 843 | goto out; |
| 844 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 845 | cluster_size = bdi.cluster_size; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 846 | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 847 | error_report("invalid cluster size"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 848 | ret = -1; |
| 849 | goto out; |
| 850 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 851 | cluster_sectors = cluster_size >> 9; |
| 852 | sector_num = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 853 | |
| 854 | nb_sectors = total_sectors; |
| 855 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 856 | (nb_sectors / MIN(nb_sectors, cluster_sectors)); |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 857 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 858 | for(;;) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 859 | int64_t bs_num; |
| 860 | int remainder; |
| 861 | uint8_t *buf2; |
| 862 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 863 | nb_sectors = total_sectors - sector_num; |
| 864 | if (nb_sectors <= 0) |
| 865 | break; |
| 866 | if (nb_sectors >= cluster_sectors) |
| 867 | n = cluster_sectors; |
| 868 | else |
| 869 | n = nb_sectors; |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 870 | |
| 871 | bs_num = sector_num - bs_offset; |
| 872 | assert (bs_num >= 0); |
| 873 | remainder = n; |
| 874 | buf2 = buf; |
| 875 | while (remainder > 0) { |
| 876 | int nlow; |
| 877 | while (bs_num == bs_sectors) { |
| 878 | bs_i++; |
| 879 | assert (bs_i < bs_n); |
| 880 | bs_offset += bs_sectors; |
| 881 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
| 882 | bs_num = 0; |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 883 | /* printf("changing part: sector_num=%" PRId64 ", " |
| 884 | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64 |
| 885 | "\n", sector_num, bs_i, bs_offset, bs_sectors); */ |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 886 | } |
| 887 | assert (bs_num < bs_sectors); |
| 888 | |
| 889 | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
| 890 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 891 | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
| 892 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 893 | error_report("error while reading"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 894 | goto out; |
| 895 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 896 | |
| 897 | buf2 += nlow * 512; |
| 898 | bs_num += nlow; |
| 899 | |
| 900 | remainder -= nlow; |
| 901 | } |
| 902 | assert (remainder == 0); |
| 903 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 904 | if (n < cluster_sectors) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 905 | memset(buf + n * 512, 0, cluster_size - n * 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 906 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 907 | if (is_not_zero(buf, cluster_size)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 908 | ret = bdrv_write_compressed(out_bs, sector_num, buf, |
| 909 | cluster_sectors); |
| 910 | if (ret != 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 911 | error_report("error while compressing sector %" PRId64, |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 912 | sector_num); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 913 | goto out; |
| 914 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 915 | } |
| 916 | sector_num += n; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 917 | qemu_progress_print(local_progress, 100); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 918 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 919 | /* signal EOF to align */ |
| 920 | bdrv_write_compressed(out_bs, 0, NULL, 0); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 921 | } else { |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 922 | int has_zero_init = bdrv_has_zero_init(out_bs); |
| 923 | |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 924 | sector_num = 0; // total number of sectors converted so far |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 925 | nb_sectors = total_sectors - sector_num; |
| 926 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 927 | (nb_sectors / MIN(nb_sectors, IO_BUF_SIZE / 512)); |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 928 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 929 | for(;;) { |
| 930 | nb_sectors = total_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 931 | if (nb_sectors <= 0) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 932 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 933 | } |
| 934 | if (nb_sectors >= (IO_BUF_SIZE / 512)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 935 | n = (IO_BUF_SIZE / 512); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 936 | } else { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 937 | n = nb_sectors; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 938 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 939 | |
| 940 | while (sector_num - bs_offset >= bs_sectors) { |
| 941 | bs_i ++; |
| 942 | assert (bs_i < bs_n); |
| 943 | bs_offset += bs_sectors; |
| 944 | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
Blue Swirl | 0bfcd59 | 2010-05-22 08:02:12 +0000 | [diff] [blame] | 945 | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, " |
| 946 | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n", |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 947 | sector_num, bs_i, bs_offset, bs_sectors); */ |
| 948 | } |
| 949 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 950 | if (n > bs_offset + bs_sectors - sector_num) { |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 951 | n = bs_offset + bs_sectors - sector_num; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 952 | } |
balrog | 926c2d2 | 2007-10-31 01:11:44 +0000 | [diff] [blame] | 953 | |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 954 | if (has_zero_init) { |
Akkarit Sangpetch | d032044 | 2009-07-17 10:02:15 +0200 | [diff] [blame] | 955 | /* If the output image is being created as a copy on write image, |
| 956 | assume that sectors which are unallocated in the input image |
| 957 | are present in both the output's and input's base images (no |
| 958 | need to copy them). */ |
| 959 | if (out_baseimg) { |
| 960 | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, |
| 961 | n, &n1)) { |
| 962 | sector_num += n1; |
| 963 | continue; |
| 964 | } |
| 965 | /* The next 'n1' sectors are allocated in the input image. Copy |
| 966 | only those as they may be followed by unallocated sectors. */ |
| 967 | n = n1; |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 968 | } |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 969 | } else { |
| 970 | n1 = n; |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 971 | } |
| 972 | |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 973 | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
| 974 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 975 | error_report("error while reading"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 976 | goto out; |
| 977 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 978 | /* NOTE: at the same time we convert, we do not write zero |
| 979 | sectors to have a chance to compress the image. Ideally, we |
| 980 | should add a specific call to have the info to go faster */ |
| 981 | buf1 = buf; |
| 982 | while (n > 0) { |
ths | f58c7b3 | 2008-06-05 21:53:49 +0000 | [diff] [blame] | 983 | /* If the output image is being created as a copy on write image, |
| 984 | copy all sectors even the ones containing only NUL bytes, |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 985 | because they may differ from the sectors in the base image. |
| 986 | |
| 987 | If the output is to a host device, we also write out |
| 988 | sectors that are entirely 0, since whatever data was |
| 989 | already there is garbage, not 0s. */ |
Kevin Wolf | f2feebb | 2010-04-14 17:30:35 +0200 | [diff] [blame] | 990 | if (!has_zero_init || out_baseimg || |
aliguori | 93c65b4 | 2009-04-05 17:40:43 +0000 | [diff] [blame] | 991 | is_allocated_sectors(buf1, n, &n1)) { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 992 | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
| 993 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 994 | error_report("error while writing"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 995 | goto out; |
| 996 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 997 | } |
| 998 | sector_num += n1; |
| 999 | n -= n1; |
| 1000 | buf1 += n1 * 512; |
| 1001 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1002 | qemu_progress_print(local_progress, 100); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1003 | } |
| 1004 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1005 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1006 | qemu_progress_end(); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1007 | free_option_parameters(create_options); |
| 1008 | free_option_parameters(param); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 1009 | g_free(buf); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1010 | if (out_bs) { |
| 1011 | bdrv_delete(out_bs); |
| 1012 | } |
Jes Sorensen | 31ca34b | 2010-12-06 15:25:36 +0100 | [diff] [blame] | 1013 | if (bs) { |
| 1014 | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
| 1015 | if (bs[bs_i]) { |
| 1016 | bdrv_delete(bs[bs_i]); |
| 1017 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1018 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 1019 | g_free(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1020 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1021 | if (ret) { |
| 1022 | return 1; |
| 1023 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1024 | return 0; |
| 1025 | } |
| 1026 | |
bellard | 57d1a2b | 2004-08-03 21:15:11 +0000 | [diff] [blame] | 1027 | |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1028 | static void dump_snapshots(BlockDriverState *bs) |
| 1029 | { |
| 1030 | QEMUSnapshotInfo *sn_tab, *sn; |
| 1031 | int nb_sns, i; |
| 1032 | char buf[256]; |
| 1033 | |
| 1034 | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
| 1035 | if (nb_sns <= 0) |
| 1036 | return; |
| 1037 | printf("Snapshot list:\n"); |
| 1038 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
| 1039 | for(i = 0; i < nb_sns; i++) { |
| 1040 | sn = &sn_tab[i]; |
| 1041 | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
| 1042 | } |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 1043 | g_free(sn_tab); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1044 | } |
| 1045 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1046 | static int img_info(int argc, char **argv) |
| 1047 | { |
| 1048 | int c; |
| 1049 | const char *filename, *fmt; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1050 | BlockDriverState *bs; |
| 1051 | char fmt_name[128], size_buf[128], dsize_buf[128]; |
ths | 96b8f13 | 2007-12-17 01:35:20 +0000 | [diff] [blame] | 1052 | uint64_t total_sectors; |
| 1053 | int64_t allocated_size; |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1054 | char backing_filename[1024]; |
| 1055 | char backing_filename2[1024]; |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1056 | BlockDriverInfo bdi; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1057 | |
| 1058 | fmt = NULL; |
| 1059 | for(;;) { |
| 1060 | c = getopt(argc, argv, "f:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1061 | if (c == -1) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1062 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1063 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1064 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1065 | case '?': |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1066 | case 'h': |
| 1067 | help(); |
| 1068 | break; |
| 1069 | case 'f': |
| 1070 | fmt = optarg; |
| 1071 | break; |
| 1072 | } |
| 1073 | } |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1074 | if (optind >= argc) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1075 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1076 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1077 | filename = argv[optind++]; |
| 1078 | |
Stefan Hajnoczi | adfe078 | 2010-04-13 10:29:35 +0100 | [diff] [blame] | 1079 | 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] | 1080 | if (!bs) { |
| 1081 | return 1; |
| 1082 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1083 | bdrv_get_format(bs, fmt_name, sizeof(fmt_name)); |
| 1084 | bdrv_get_geometry(bs, &total_sectors); |
| 1085 | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
Fam Zheng | 4a1d5e1 | 2011-07-12 19:56:39 +0800 | [diff] [blame] | 1086 | allocated_size = bdrv_get_allocated_file_size(bs); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1087 | if (allocated_size < 0) { |
blueswir1 | a10ea30 | 2008-08-24 10:30:33 +0000 | [diff] [blame] | 1088 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1089 | } else { |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1090 | get_human_readable_size(dsize_buf, sizeof(dsize_buf), |
bellard | de167e4 | 2005-04-28 21:15:08 +0000 | [diff] [blame] | 1091 | allocated_size); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1092 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1093 | printf("image: %s\n" |
| 1094 | "file format: %s\n" |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 1095 | "virtual size: %s (%" PRId64 " bytes)\n" |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1096 | "disk size: %s\n", |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1097 | filename, fmt_name, size_buf, |
bellard | ec3757d | 2006-06-14 15:50:07 +0000 | [diff] [blame] | 1098 | (total_sectors * 512), |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1099 | dsize_buf); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1100 | if (bdrv_is_encrypted(bs)) { |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1101 | printf("encrypted: yes\n"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1102 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1103 | if (bdrv_get_info(bs, &bdi) >= 0) { |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1104 | if (bdi.cluster_size != 0) { |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1105 | printf("cluster_size: %d\n", bdi.cluster_size); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1106 | } |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1107 | } |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1108 | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename)); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1109 | if (backing_filename[0] != '\0') { |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1110 | path_combine(backing_filename2, sizeof(backing_filename2), |
| 1111 | filename, backing_filename); |
ths | 5fafdf2 | 2007-09-16 21:08:06 +0000 | [diff] [blame] | 1112 | printf("backing file: %s (actual path: %s)\n", |
bellard | 93b6b2a | 2006-08-01 15:51:11 +0000 | [diff] [blame] | 1113 | backing_filename, |
| 1114 | backing_filename2); |
bellard | faea38e | 2006-08-05 21:31:00 +0000 | [diff] [blame] | 1115 | } |
| 1116 | dump_snapshots(bs); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1117 | bdrv_delete(bs); |
| 1118 | return 0; |
| 1119 | } |
| 1120 | |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1121 | #define SNAPSHOT_LIST 1 |
| 1122 | #define SNAPSHOT_CREATE 2 |
| 1123 | #define SNAPSHOT_APPLY 3 |
| 1124 | #define SNAPSHOT_DELETE 4 |
| 1125 | |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1126 | static int img_snapshot(int argc, char **argv) |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1127 | { |
| 1128 | BlockDriverState *bs; |
| 1129 | QEMUSnapshotInfo sn; |
| 1130 | char *filename, *snapshot_name = NULL; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1131 | int c, ret = 0, bdrv_oflags; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1132 | int action = 0; |
| 1133 | qemu_timeval tv; |
| 1134 | |
Kevin Wolf | 710da70 | 2011-01-10 12:33:02 +0100 | [diff] [blame] | 1135 | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1136 | /* Parse commandline parameters */ |
| 1137 | for(;;) { |
| 1138 | c = getopt(argc, argv, "la:c:d:h"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1139 | if (c == -1) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1140 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1141 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1142 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1143 | case '?': |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1144 | case 'h': |
| 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 | case 'l': |
| 1148 | if (action) { |
| 1149 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1150 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1151 | } |
| 1152 | action = SNAPSHOT_LIST; |
Naphtali Sprei | f5edb01 | 2010-01-17 16:48:13 +0200 | [diff] [blame] | 1153 | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */ |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1154 | break; |
| 1155 | case 'a': |
| 1156 | if (action) { |
| 1157 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1158 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1159 | } |
| 1160 | action = SNAPSHOT_APPLY; |
| 1161 | snapshot_name = optarg; |
| 1162 | break; |
| 1163 | case 'c': |
| 1164 | if (action) { |
| 1165 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1166 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1167 | } |
| 1168 | action = SNAPSHOT_CREATE; |
| 1169 | snapshot_name = optarg; |
| 1170 | break; |
| 1171 | case 'd': |
| 1172 | if (action) { |
| 1173 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1174 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1175 | } |
| 1176 | action = SNAPSHOT_DELETE; |
| 1177 | snapshot_name = optarg; |
| 1178 | break; |
| 1179 | } |
| 1180 | } |
| 1181 | |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1182 | if (optind >= argc) { |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1183 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1184 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1185 | filename = argv[optind++]; |
| 1186 | |
| 1187 | /* Open the image */ |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1188 | bs = bdrv_new_open(filename, NULL, bdrv_oflags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1189 | if (!bs) { |
| 1190 | return 1; |
| 1191 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1192 | |
| 1193 | /* Perform the requested action */ |
| 1194 | switch(action) { |
| 1195 | case SNAPSHOT_LIST: |
| 1196 | dump_snapshots(bs); |
| 1197 | break; |
| 1198 | |
| 1199 | case SNAPSHOT_CREATE: |
| 1200 | memset(&sn, 0, sizeof(sn)); |
| 1201 | pstrcpy(sn.name, sizeof(sn.name), snapshot_name); |
| 1202 | |
| 1203 | qemu_gettimeofday(&tv); |
| 1204 | sn.date_sec = tv.tv_sec; |
| 1205 | sn.date_nsec = tv.tv_usec * 1000; |
| 1206 | |
| 1207 | ret = bdrv_snapshot_create(bs, &sn); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1208 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1209 | error_report("Could not create snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1210 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1211 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1212 | break; |
| 1213 | |
| 1214 | case SNAPSHOT_APPLY: |
| 1215 | ret = bdrv_snapshot_goto(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1216 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1217 | error_report("Could not apply snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1218 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1219 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1220 | break; |
| 1221 | |
| 1222 | case SNAPSHOT_DELETE: |
| 1223 | ret = bdrv_snapshot_delete(bs, snapshot_name); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1224 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1225 | error_report("Could not delete snapshot '%s': %d (%s)", |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1226 | snapshot_name, ret, strerror(-ret)); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1227 | } |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1228 | break; |
| 1229 | } |
| 1230 | |
| 1231 | /* Cleanup */ |
| 1232 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1233 | if (ret) { |
| 1234 | return 1; |
| 1235 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1236 | return 0; |
aliguori | f7b4a94 | 2009-01-07 17:40:15 +0000 | [diff] [blame] | 1237 | } |
| 1238 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1239 | static int img_rebase(int argc, char **argv) |
| 1240 | { |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1241 | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1242 | BlockDriver *old_backing_drv, *new_backing_drv; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1243 | char *filename; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1244 | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1245 | int c, flags, ret; |
| 1246 | int unsafe = 0; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1247 | int progress = 0; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1248 | |
| 1249 | /* Parse commandline parameters */ |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1250 | fmt = NULL; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1251 | cache = BDRV_DEFAULT_CACHE; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1252 | out_baseimg = NULL; |
| 1253 | out_basefmt = NULL; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1254 | for(;;) { |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1255 | c = getopt(argc, argv, "uhf:F:b:pt:"); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1256 | if (c == -1) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1257 | break; |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1258 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1259 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1260 | case '?': |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1261 | case 'h': |
| 1262 | help(); |
| 1263 | return 0; |
Kevin Wolf | e53dbee | 2010-03-02 12:14:31 +0100 | [diff] [blame] | 1264 | case 'f': |
| 1265 | fmt = optarg; |
| 1266 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1267 | case 'F': |
| 1268 | out_basefmt = optarg; |
| 1269 | break; |
| 1270 | case 'b': |
| 1271 | out_baseimg = optarg; |
| 1272 | break; |
| 1273 | case 'u': |
| 1274 | unsafe = 1; |
| 1275 | break; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1276 | case 'p': |
| 1277 | progress = 1; |
| 1278 | break; |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1279 | case 't': |
| 1280 | cache = optarg; |
| 1281 | break; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1282 | } |
| 1283 | } |
| 1284 | |
Anthony Liguori | 9a9d9db | 2011-04-13 15:51:47 +0100 | [diff] [blame] | 1285 | if ((optind >= argc) || (!unsafe && !out_baseimg)) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1286 | help(); |
Jes Sorensen | b8fb60d | 2010-12-06 15:25:39 +0100 | [diff] [blame] | 1287 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1288 | filename = argv[optind++]; |
| 1289 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1290 | qemu_progress_init(progress, 2.0); |
| 1291 | qemu_progress_print(0, 100); |
| 1292 | |
Federico Simoncelli | 661a0f7 | 2011-06-20 12:48:19 -0400 | [diff] [blame] | 1293 | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0); |
| 1294 | ret = set_cache_flag(cache, &flags); |
| 1295 | if (ret < 0) { |
| 1296 | error_report("Invalid cache option: %s", cache); |
| 1297 | return -1; |
| 1298 | } |
| 1299 | |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1300 | /* |
| 1301 | * Open the images. |
| 1302 | * |
| 1303 | * Ignore the old backing file for unsafe rebase in case we want to correct |
| 1304 | * the reference to a renamed or moved backing file. |
| 1305 | */ |
Stefan Hajnoczi | f163d07 | 2010-04-13 10:29:34 +0100 | [diff] [blame] | 1306 | bs = bdrv_new_open(filename, fmt, flags); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1307 | if (!bs) { |
| 1308 | return 1; |
| 1309 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1310 | |
| 1311 | /* Find the right drivers for the backing files */ |
| 1312 | old_backing_drv = NULL; |
| 1313 | new_backing_drv = NULL; |
| 1314 | |
| 1315 | if (!unsafe && bs->backing_format[0] != '\0') { |
| 1316 | old_backing_drv = bdrv_find_format(bs->backing_format); |
| 1317 | if (old_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1318 | error_report("Invalid format name: '%s'", bs->backing_format); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1319 | ret = -1; |
| 1320 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1321 | } |
| 1322 | } |
| 1323 | |
| 1324 | if (out_basefmt != NULL) { |
| 1325 | new_backing_drv = bdrv_find_format(out_basefmt); |
| 1326 | if (new_backing_drv == NULL) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1327 | error_report("Invalid format name: '%s'", out_basefmt); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1328 | ret = -1; |
| 1329 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1330 | } |
| 1331 | } |
| 1332 | |
| 1333 | /* For safe rebasing we need to compare old and new backing file */ |
| 1334 | if (unsafe) { |
| 1335 | /* Make the compiler happy */ |
| 1336 | bs_old_backing = NULL; |
| 1337 | bs_new_backing = NULL; |
| 1338 | } else { |
| 1339 | char backing_name[1024]; |
| 1340 | |
| 1341 | bs_old_backing = bdrv_new("old_backing"); |
| 1342 | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1343 | ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS, |
| 1344 | old_backing_drv); |
| 1345 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1346 | error_report("Could not open old backing file '%s'", backing_name); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1347 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1348 | } |
| 1349 | |
| 1350 | bs_new_backing = bdrv_new("new_backing"); |
Kevin Wolf | cdbae85 | 2010-08-17 18:58:55 +0200 | [diff] [blame] | 1351 | ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS, |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1352 | new_backing_drv); |
| 1353 | if (ret) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1354 | error_report("Could not open new backing file '%s'", out_baseimg); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1355 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1356 | } |
| 1357 | } |
| 1358 | |
| 1359 | /* |
| 1360 | * Check each unallocated cluster in the COW file. If it is unallocated, |
| 1361 | * accesses go to the backing file. We must therefore compare this cluster |
| 1362 | * in the old and new backing file, and if they differ we need to copy it |
| 1363 | * from the old backing file into the COW file. |
| 1364 | * |
| 1365 | * If qemu-img crashes during this step, no harm is done. The content of |
| 1366 | * the image is the same as the original one at any time. |
| 1367 | */ |
| 1368 | if (!unsafe) { |
| 1369 | uint64_t num_sectors; |
| 1370 | uint64_t sector; |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1371 | int n; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1372 | uint8_t * buf_old; |
| 1373 | uint8_t * buf_new; |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1374 | float local_progress; |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1375 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 1376 | buf_old = g_malloc(IO_BUF_SIZE); |
| 1377 | buf_new = g_malloc(IO_BUF_SIZE); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1378 | |
| 1379 | bdrv_get_geometry(bs, &num_sectors); |
| 1380 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1381 | local_progress = (float)100 / |
Jes Sorensen | 4ee9641 | 2011-05-06 11:39:11 +0200 | [diff] [blame] | 1382 | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512)); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1383 | for (sector = 0; sector < num_sectors; sector += n) { |
| 1384 | |
| 1385 | /* How many sectors can we handle with the next read? */ |
| 1386 | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
| 1387 | n = (IO_BUF_SIZE / 512); |
| 1388 | } else { |
| 1389 | n = num_sectors - sector; |
| 1390 | } |
| 1391 | |
| 1392 | /* If the cluster is allocated, we don't need to take action */ |
Kevin Wolf | cc60e32 | 2010-04-29 14:47:48 +0200 | [diff] [blame] | 1393 | ret = bdrv_is_allocated(bs, sector, n, &n); |
| 1394 | if (ret) { |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1395 | continue; |
| 1396 | } |
| 1397 | |
| 1398 | /* Read old and new backing file */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1399 | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
| 1400 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1401 | error_report("error while reading from old backing file"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1402 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1403 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1404 | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
| 1405 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1406 | error_report("error while reading from new backing file"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1407 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1408 | } |
| 1409 | |
| 1410 | /* If they differ, we need to write to the COW file */ |
| 1411 | uint64_t written = 0; |
| 1412 | |
| 1413 | while (written < n) { |
| 1414 | int pnum; |
| 1415 | |
| 1416 | if (compare_sectors(buf_old + written * 512, |
Kevin Wolf | 60b1bd4 | 2010-02-17 12:32:59 +0100 | [diff] [blame] | 1417 | buf_new + written * 512, n - written, &pnum)) |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1418 | { |
| 1419 | ret = bdrv_write(bs, sector + written, |
| 1420 | buf_old + written * 512, pnum); |
| 1421 | if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1422 | error_report("Error while writing to COW image: %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1423 | strerror(-ret)); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1424 | goto out; |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1425 | } |
| 1426 | } |
| 1427 | |
| 1428 | written += pnum; |
| 1429 | } |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1430 | qemu_progress_print(local_progress, 100); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1431 | } |
TeLeMan | d6771bf | 2010-02-08 16:20:00 +0800 | [diff] [blame] | 1432 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame^] | 1433 | g_free(buf_old); |
| 1434 | g_free(buf_new); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1435 | } |
| 1436 | |
| 1437 | /* |
| 1438 | * Change the backing file. All clusters that are different from the old |
| 1439 | * backing file are overwritten in the COW file now, so the visible content |
| 1440 | * doesn't change when we switch the backing file. |
| 1441 | */ |
| 1442 | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
| 1443 | if (ret == -ENOSPC) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1444 | error_report("Could not change the backing file to '%s': No " |
| 1445 | "space left in the file header", out_baseimg); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1446 | } else if (ret < 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1447 | error_report("Could not change the backing file to '%s': %s", |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1448 | out_baseimg, strerror(-ret)); |
| 1449 | } |
| 1450 | |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1451 | qemu_progress_print(100, 0); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1452 | /* |
| 1453 | * TODO At this point it is possible to check if any clusters that are |
| 1454 | * allocated in the COW file are the same in the backing file. If so, they |
| 1455 | * could be dropped from the COW file. Don't do this before switching the |
| 1456 | * backing file, in case of a crash this would lead to corruption. |
| 1457 | */ |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1458 | out: |
Jes Sorensen | 6b837bc | 2011-03-30 14:16:25 +0200 | [diff] [blame] | 1459 | qemu_progress_end(); |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1460 | /* Cleanup */ |
| 1461 | if (!unsafe) { |
Kevin Wolf | eb863ad | 2011-03-31 12:39:51 +0200 | [diff] [blame] | 1462 | if (bs_old_backing != NULL) { |
| 1463 | bdrv_delete(bs_old_backing); |
| 1464 | } |
| 1465 | if (bs_new_backing != NULL) { |
| 1466 | bdrv_delete(bs_new_backing); |
| 1467 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1468 | } |
| 1469 | |
| 1470 | bdrv_delete(bs); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1471 | if (ret) { |
| 1472 | return 1; |
| 1473 | } |
Kevin Wolf | 3e85c6f | 2010-01-12 12:55:18 +0100 | [diff] [blame] | 1474 | return 0; |
| 1475 | } |
| 1476 | |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1477 | static int img_resize(int argc, char **argv) |
| 1478 | { |
| 1479 | int c, ret, relative; |
| 1480 | const char *filename, *fmt, *size; |
| 1481 | int64_t n, total_size; |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1482 | BlockDriverState *bs = NULL; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1483 | QEMUOptionParameter *param; |
| 1484 | QEMUOptionParameter resize_options[] = { |
| 1485 | { |
| 1486 | .name = BLOCK_OPT_SIZE, |
| 1487 | .type = OPT_SIZE, |
| 1488 | .help = "Virtual disk size" |
| 1489 | }, |
| 1490 | { NULL } |
| 1491 | }; |
| 1492 | |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1493 | /* Remove size from argv manually so that negative numbers are not treated |
| 1494 | * as options by getopt. */ |
| 1495 | if (argc < 3) { |
| 1496 | help(); |
| 1497 | return 1; |
| 1498 | } |
| 1499 | |
| 1500 | size = argv[--argc]; |
| 1501 | |
| 1502 | /* Parse getopt arguments */ |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1503 | fmt = NULL; |
| 1504 | for(;;) { |
| 1505 | c = getopt(argc, argv, "f:h"); |
| 1506 | if (c == -1) { |
| 1507 | break; |
| 1508 | } |
| 1509 | switch(c) { |
Jes Sorensen | ef87394 | 2010-12-06 15:25:40 +0100 | [diff] [blame] | 1510 | case '?': |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1511 | case 'h': |
| 1512 | help(); |
| 1513 | break; |
| 1514 | case 'f': |
| 1515 | fmt = optarg; |
| 1516 | break; |
| 1517 | } |
| 1518 | } |
Kevin Wolf | e80fec7 | 2011-04-29 10:58:12 +0200 | [diff] [blame] | 1519 | if (optind >= argc) { |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1520 | help(); |
| 1521 | } |
| 1522 | filename = argv[optind++]; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1523 | |
| 1524 | /* Choose grow, shrink, or absolute resize mode */ |
| 1525 | switch (size[0]) { |
| 1526 | case '+': |
| 1527 | relative = 1; |
| 1528 | size++; |
| 1529 | break; |
| 1530 | case '-': |
| 1531 | relative = -1; |
| 1532 | size++; |
| 1533 | break; |
| 1534 | default: |
| 1535 | relative = 0; |
| 1536 | break; |
| 1537 | } |
| 1538 | |
| 1539 | /* Parse size */ |
| 1540 | param = parse_option_parameters("", resize_options, NULL); |
| 1541 | if (set_option_parameter(param, BLOCK_OPT_SIZE, size)) { |
| 1542 | /* Error message already printed when size parsing fails */ |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1543 | ret = -1; |
| 1544 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1545 | } |
| 1546 | n = get_option_parameter(param, BLOCK_OPT_SIZE)->value.n; |
| 1547 | free_option_parameters(param); |
| 1548 | |
| 1549 | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1550 | if (!bs) { |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1551 | ret = -1; |
| 1552 | goto out; |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1553 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1554 | |
| 1555 | if (relative) { |
| 1556 | total_size = bdrv_getlength(bs) + n * relative; |
| 1557 | } else { |
| 1558 | total_size = n; |
| 1559 | } |
| 1560 | if (total_size <= 0) { |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1561 | error_report("New image size must be positive"); |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1562 | ret = -1; |
| 1563 | goto out; |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1564 | } |
| 1565 | |
| 1566 | ret = bdrv_truncate(bs, total_size); |
| 1567 | switch (ret) { |
| 1568 | case 0: |
| 1569 | printf("Image resized.\n"); |
| 1570 | break; |
| 1571 | case -ENOTSUP: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1572 | error_report("This image format does not support resize"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1573 | break; |
| 1574 | case -EACCES: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1575 | error_report("Image is read-only"); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1576 | break; |
| 1577 | default: |
Jes Sorensen | 15654a6 | 2010-12-16 14:31:53 +0100 | [diff] [blame] | 1578 | error_report("Error resizing image (%d)", -ret); |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1579 | break; |
| 1580 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1581 | out: |
Jes Sorensen | 2a81998 | 2010-12-06 17:08:31 +0100 | [diff] [blame] | 1582 | if (bs) { |
| 1583 | bdrv_delete(bs); |
| 1584 | } |
MORITA Kazutaka | c2abcce | 2010-06-21 04:26:35 +0900 | [diff] [blame] | 1585 | if (ret) { |
| 1586 | return 1; |
| 1587 | } |
Stefan Hajnoczi | ae6b0ed | 2010-04-24 09:12:12 +0100 | [diff] [blame] | 1588 | return 0; |
| 1589 | } |
| 1590 | |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1591 | static const img_cmd_t img_cmds[] = { |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1592 | #define DEF(option, callback, arg_string) \ |
| 1593 | { option, callback }, |
| 1594 | #include "qemu-img-cmds.h" |
| 1595 | #undef DEF |
| 1596 | #undef GEN_DOCS |
| 1597 | { NULL, NULL, }, |
| 1598 | }; |
| 1599 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1600 | int main(int argc, char **argv) |
| 1601 | { |
Anthony Liguori | c227f09 | 2009-10-01 16:12:16 -0500 | [diff] [blame] | 1602 | const img_cmd_t *cmd; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1603 | const char *cmdname; |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1604 | |
Kevin Wolf | 53f76e5 | 2010-12-16 15:10:32 +0100 | [diff] [blame] | 1605 | error_set_progname(argv[0]); |
| 1606 | |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1607 | bdrv_init(); |
| 1608 | if (argc < 2) |
| 1609 | help(); |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1610 | cmdname = argv[1]; |
aurel32 | 8f9b157 | 2009-02-09 18:14:31 +0000 | [diff] [blame] | 1611 | argc--; argv++; |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1612 | |
| 1613 | /* find the command */ |
| 1614 | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
| 1615 | if (!strcmp(cmdname, cmd->name)) { |
| 1616 | return cmd->handler(argc, argv); |
| 1617 | } |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1618 | } |
Stuart Brady | 153859b | 2009-06-07 00:42:17 +0100 | [diff] [blame] | 1619 | |
| 1620 | /* not found */ |
| 1621 | help(); |
bellard | ea2384d | 2004-08-01 21:59:26 +0000 | [diff] [blame] | 1622 | return 0; |
| 1623 | } |