root / qemu-img.c @ 1eec614b
History | View | Annotate | Download (25.3 kB)
1 | ea2384d3 | bellard | /*
|
---|---|---|---|
2 | fb43f4dd | bellard | * QEMU disk image utility
|
3 | 5fafdf24 | ths | *
|
4 | 68d0f70e | bellard | * Copyright (c) 2003-2008 Fabrice Bellard
|
5 | 5fafdf24 | ths | *
|
6 | ea2384d3 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
|
7 | ea2384d3 | bellard | * of this software and associated documentation files (the "Software"), to deal
|
8 | ea2384d3 | bellard | * in the Software without restriction, including without limitation the rights
|
9 | ea2384d3 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
10 | ea2384d3 | bellard | * copies of the Software, and to permit persons to whom the Software is
|
11 | ea2384d3 | bellard | * furnished to do so, subject to the following conditions:
|
12 | ea2384d3 | bellard | *
|
13 | ea2384d3 | bellard | * The above copyright notice and this permission notice shall be included in
|
14 | ea2384d3 | bellard | * all copies or substantial portions of the Software.
|
15 | ea2384d3 | bellard | *
|
16 | ea2384d3 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
17 | ea2384d3 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
18 | ea2384d3 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
19 | ea2384d3 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
20 | ea2384d3 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
21 | ea2384d3 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
22 | ea2384d3 | bellard | * THE SOFTWARE.
|
23 | ea2384d3 | bellard | */
|
24 | faf07963 | pbrook | #include "qemu-common.h" |
25 | f7b4a940 | aliguori | #include "osdep.h" |
26 | ec36ba14 | ths | #include "block_int.h" |
27 | 926c2d23 | balrog | #include <assert.h> |
28 | ea2384d3 | bellard | |
29 | e8445331 | bellard | #ifdef _WIN32
|
30 | 4fddf62a | ths | #define WIN32_LEAN_AND_MEAN
|
31 | e8445331 | bellard | #include <windows.h> |
32 | e8445331 | bellard | #endif
|
33 | e8445331 | bellard | |
34 | 137519ce | aurel32 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */
|
35 | 137519ce | aurel32 | #define BRDV_O_FLAGS BDRV_O_CACHE_WB
|
36 | 137519ce | aurel32 | |
37 | a5e50b26 | malc | static void QEMU_NORETURN error(const char *fmt, ...) |
38 | ea2384d3 | bellard | { |
39 | ea2384d3 | bellard | va_list ap; |
40 | ea2384d3 | bellard | va_start(ap, fmt); |
41 | 57d1a2b6 | bellard | fprintf(stderr, "qemu-img: ");
|
42 | ea2384d3 | bellard | vfprintf(stderr, fmt, ap); |
43 | ea2384d3 | bellard | fprintf(stderr, "\n");
|
44 | ea2384d3 | bellard | exit(1);
|
45 | ea2384d3 | bellard | va_end(ap); |
46 | ea2384d3 | bellard | } |
47 | ea2384d3 | bellard | |
48 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
49 | ea2384d3 | bellard | { |
50 | ea2384d3 | bellard | printf(" %s", name);
|
51 | ea2384d3 | bellard | } |
52 | ea2384d3 | bellard | |
53 | d2c639d6 | blueswir1 | /* Please keep in synch with qemu-img.texi */
|
54 | 3f379ab1 | pbrook | static void help(void) |
55 | ea2384d3 | bellard | { |
56 | 68d0f70e | bellard | printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
57 | 57d1a2b6 | bellard | "usage: qemu-img command [command options]\n"
|
58 | ea2384d3 | bellard | "QEMU disk image utility\n"
|
59 | ea2384d3 | bellard | "\n"
|
60 | ea2384d3 | bellard | "Command syntax:\n"
|
61 | ec36ba14 | ths | " create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
|
62 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
|
63 | f58c7b35 | ths | " convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] [-B output_base_image] filename [filename2 [...]] output_filename\n"
|
64 | ea2384d3 | bellard | " info [-f fmt] filename\n"
|
65 | d2c639d6 | blueswir1 | " snapshot [-l | -a snapshot | -c snapshot | -d snapshot] filename\n"
|
66 | ea2384d3 | bellard | "\n"
|
67 | ea2384d3 | bellard | "Command parameters:\n"
|
68 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
|
69 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
|
70 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
|
71 | f58c7b35 | ths | " 'output_base_image' forces the output image to be created as a copy on write\n"
|
72 | f58c7b35 | ths | " image of the specified base image; 'output_base_image' should have the same\n"
|
73 | f58c7b35 | ths | " content as the input's base image, however the path, image format, etc may\n"
|
74 | f58c7b35 | ths | " differ\n"
|
75 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
|
76 | d2c639d6 | blueswir1 | " 'size' is the disk image size in kilobytes. Optional suffixes\n"
|
77 | d2c639d6 | blueswir1 | " 'M' (megabyte, 1024 * 1024) and 'G' (gigabyte, 1024 * 1024 * 1024) are"
|
78 | d2c639d6 | blueswir1 | " supported any @code{k} or @code{K} is ignored\n"
|
79 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
|
80 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
|
81 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
|
82 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
|
83 | ec36ba14 | ths | " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
|
84 | d2c639d6 | blueswir1 | " '-h' with or without a command shows this help and lists the supported formats\n"
|
85 | f7b4a940 | aliguori | "\n"
|
86 | d2c639d6 | blueswir1 | "Parameters to snapshot subcommand:\n"
|
87 | d2c639d6 | blueswir1 | " 'snapshot' is the name of the snapshot to create, apply or delete\n"
|
88 | d2c639d6 | blueswir1 | " '-a' applies a snapshot (revert disk to saved state)\n"
|
89 | d2c639d6 | blueswir1 | " '-c' creates a snapshot\n"
|
90 | d2c639d6 | blueswir1 | " '-d' deletes a snapshot\n"
|
91 | d2c639d6 | blueswir1 | " '-l' lists all snapshots in the given image\n"
|
92 | ea2384d3 | bellard | ); |
93 | d2c639d6 | blueswir1 | printf("\nSupported formats:");
|
94 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
|
95 | ea2384d3 | bellard | printf("\n");
|
96 | ea2384d3 | bellard | exit(1);
|
97 | ea2384d3 | bellard | } |
98 | ea2384d3 | bellard | |
99 | ea2384d3 | bellard | #if defined(WIN32)
|
100 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
|
101 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
102 | ea2384d3 | bellard | { |
103 | ea2384d3 | bellard | int c, i;
|
104 | ea2384d3 | bellard | printf("Password: ");
|
105 | ea2384d3 | bellard | fflush(stdout); |
106 | ea2384d3 | bellard | i = 0;
|
107 | ea2384d3 | bellard | for(;;) {
|
108 | ea2384d3 | bellard | c = getchar(); |
109 | ea2384d3 | bellard | if (c == '\n') |
110 | ea2384d3 | bellard | break;
|
111 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
112 | ea2384d3 | bellard | buf[i++] = c; |
113 | ea2384d3 | bellard | } |
114 | ea2384d3 | bellard | buf[i] = '\0';
|
115 | ea2384d3 | bellard | return 0; |
116 | ea2384d3 | bellard | } |
117 | ea2384d3 | bellard | |
118 | ea2384d3 | bellard | #else
|
119 | ea2384d3 | bellard | |
120 | ea2384d3 | bellard | #include <termios.h> |
121 | ea2384d3 | bellard | |
122 | ea2384d3 | bellard | static struct termios oldtty; |
123 | ea2384d3 | bellard | |
124 | ea2384d3 | bellard | static void term_exit(void) |
125 | ea2384d3 | bellard | { |
126 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
|
127 | ea2384d3 | bellard | } |
128 | ea2384d3 | bellard | |
129 | ea2384d3 | bellard | static void term_init(void) |
130 | ea2384d3 | bellard | { |
131 | ea2384d3 | bellard | struct termios tty;
|
132 | ea2384d3 | bellard | |
133 | ea2384d3 | bellard | tcgetattr (0, &tty);
|
134 | ea2384d3 | bellard | oldtty = tty; |
135 | ea2384d3 | bellard | |
136 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
137 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
138 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
139 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
140 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
141 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
142 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
|
143 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
|
144 | 3b46e624 | ths | |
145 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
|
146 | ea2384d3 | bellard | |
147 | ea2384d3 | bellard | atexit(term_exit); |
148 | ea2384d3 | bellard | } |
149 | ea2384d3 | bellard | |
150 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
151 | ea2384d3 | bellard | { |
152 | ea2384d3 | bellard | uint8_t ch; |
153 | ea2384d3 | bellard | int i, ret;
|
154 | ea2384d3 | bellard | |
155 | ea2384d3 | bellard | printf("password: ");
|
156 | ea2384d3 | bellard | fflush(stdout); |
157 | ea2384d3 | bellard | term_init(); |
158 | ea2384d3 | bellard | i = 0;
|
159 | ea2384d3 | bellard | for(;;) {
|
160 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
161 | ea2384d3 | bellard | if (ret == -1) { |
162 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
|
163 | ea2384d3 | bellard | continue;
|
164 | ea2384d3 | bellard | } else {
|
165 | ea2384d3 | bellard | ret = -1;
|
166 | ea2384d3 | bellard | break;
|
167 | ea2384d3 | bellard | } |
168 | ea2384d3 | bellard | } else if (ret == 0) { |
169 | ea2384d3 | bellard | ret = -1;
|
170 | ea2384d3 | bellard | break;
|
171 | ea2384d3 | bellard | } else {
|
172 | ea2384d3 | bellard | if (ch == '\r') { |
173 | ea2384d3 | bellard | ret = 0;
|
174 | ea2384d3 | bellard | break;
|
175 | ea2384d3 | bellard | } |
176 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
177 | ea2384d3 | bellard | buf[i++] = ch; |
178 | ea2384d3 | bellard | } |
179 | ea2384d3 | bellard | } |
180 | ea2384d3 | bellard | term_exit(); |
181 | ea2384d3 | bellard | buf[i] = '\0';
|
182 | ea2384d3 | bellard | printf("\n");
|
183 | ea2384d3 | bellard | return ret;
|
184 | ea2384d3 | bellard | } |
185 | ea2384d3 | bellard | #endif
|
186 | ea2384d3 | bellard | |
187 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
188 | 75c23805 | bellard | const char *fmt) |
189 | 75c23805 | bellard | { |
190 | 75c23805 | bellard | BlockDriverState *bs; |
191 | 75c23805 | bellard | BlockDriver *drv; |
192 | 75c23805 | bellard | char password[256]; |
193 | 75c23805 | bellard | |
194 | 75c23805 | bellard | bs = bdrv_new("");
|
195 | 75c23805 | bellard | if (!bs)
|
196 | 75c23805 | bellard | error("Not enough memory");
|
197 | 75c23805 | bellard | if (fmt) {
|
198 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
199 | 75c23805 | bellard | if (!drv)
|
200 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
|
201 | 75c23805 | bellard | } else {
|
202 | 75c23805 | bellard | drv = NULL;
|
203 | 75c23805 | bellard | } |
204 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
205 | 75c23805 | bellard | error("Could not open '%s'", filename);
|
206 | 75c23805 | bellard | } |
207 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
|
208 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
|
209 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
210 | 75c23805 | bellard | error("No password given");
|
211 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
212 | 75c23805 | bellard | error("invalid password");
|
213 | 75c23805 | bellard | } |
214 | 75c23805 | bellard | return bs;
|
215 | 75c23805 | bellard | } |
216 | 75c23805 | bellard | |
217 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
218 | ea2384d3 | bellard | { |
219 | ec36ba14 | ths | int c, ret, flags;
|
220 | ea2384d3 | bellard | const char *fmt = "raw"; |
221 | ea2384d3 | bellard | const char *filename; |
222 | ea2384d3 | bellard | const char *base_filename = NULL; |
223 | 96b8f136 | ths | uint64_t size; |
224 | ea2384d3 | bellard | const char *p; |
225 | ea2384d3 | bellard | BlockDriver *drv; |
226 | 3b46e624 | ths | |
227 | ec36ba14 | ths | flags = 0;
|
228 | ea2384d3 | bellard | for(;;) {
|
229 | ec36ba14 | ths | c = getopt(argc, argv, "b:f:he6");
|
230 | ea2384d3 | bellard | if (c == -1) |
231 | ea2384d3 | bellard | break;
|
232 | ea2384d3 | bellard | switch(c) {
|
233 | ea2384d3 | bellard | case 'h': |
234 | ea2384d3 | bellard | help(); |
235 | ea2384d3 | bellard | break;
|
236 | ea2384d3 | bellard | case 'b': |
237 | ea2384d3 | bellard | base_filename = optarg; |
238 | ea2384d3 | bellard | break;
|
239 | ea2384d3 | bellard | case 'f': |
240 | ea2384d3 | bellard | fmt = optarg; |
241 | ea2384d3 | bellard | break;
|
242 | ea2384d3 | bellard | case 'e': |
243 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
244 | ea2384d3 | bellard | break;
|
245 | d8871c5a | ths | case '6': |
246 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
247 | d8871c5a | ths | break;
|
248 | ea2384d3 | bellard | } |
249 | ea2384d3 | bellard | } |
250 | 5fafdf24 | ths | if (optind >= argc)
|
251 | ea2384d3 | bellard | help(); |
252 | ea2384d3 | bellard | filename = argv[optind++]; |
253 | ea2384d3 | bellard | size = 0;
|
254 | 75c23805 | bellard | if (base_filename) {
|
255 | e94f3a60 | aliguori | BlockDriverState *bs; |
256 | 75c23805 | bellard | bs = bdrv_new_open(base_filename, NULL);
|
257 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
258 | 75c23805 | bellard | size *= 512;
|
259 | 75c23805 | bellard | bdrv_delete(bs); |
260 | 75c23805 | bellard | } else {
|
261 | ea2384d3 | bellard | if (optind >= argc)
|
262 | ea2384d3 | bellard | help(); |
263 | ea2384d3 | bellard | p = argv[optind]; |
264 | ea2384d3 | bellard | size = strtoul(p, (char **)&p, 0); |
265 | ea2384d3 | bellard | if (*p == 'M') { |
266 | ea2384d3 | bellard | size *= 1024 * 1024; |
267 | ea2384d3 | bellard | } else if (*p == 'G') { |
268 | ea2384d3 | bellard | size *= 1024 * 1024 * 1024; |
269 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
270 | ea2384d3 | bellard | size *= 1024;
|
271 | ea2384d3 | bellard | } else {
|
272 | ea2384d3 | bellard | help(); |
273 | ea2384d3 | bellard | } |
274 | ea2384d3 | bellard | } |
275 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
276 | ea2384d3 | bellard | if (!drv)
|
277 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
278 | 0cfec834 | ths | printf("Formatting '%s', fmt=%s",
|
279 | ea2384d3 | bellard | filename, fmt); |
280 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT)
|
281 | ea2384d3 | bellard | printf(", encrypted");
|
282 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPAT6)
|
283 | ec36ba14 | ths | printf(", compatibility level=6");
|
284 | 75c23805 | bellard | if (base_filename) {
|
285 | 75c23805 | bellard | printf(", backing_file=%s",
|
286 | ea2384d3 | bellard | base_filename); |
287 | 75c23805 | bellard | } |
288 | 96b8f136 | ths | printf(", size=%" PRIu64 " kB\n", size / 1024); |
289 | ec36ba14 | ths | ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
|
290 | ea2384d3 | bellard | if (ret < 0) { |
291 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
292 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
|
293 | ea2384d3 | bellard | } else {
|
294 | ea2384d3 | bellard | error("Error while formatting");
|
295 | ea2384d3 | bellard | } |
296 | ea2384d3 | bellard | } |
297 | ea2384d3 | bellard | return 0; |
298 | ea2384d3 | bellard | } |
299 | ea2384d3 | bellard | |
300 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
301 | ea2384d3 | bellard | { |
302 | ea2384d3 | bellard | int c, ret;
|
303 | ea2384d3 | bellard | const char *filename, *fmt; |
304 | ea2384d3 | bellard | BlockDriver *drv; |
305 | ea2384d3 | bellard | BlockDriverState *bs; |
306 | ea2384d3 | bellard | |
307 | ea2384d3 | bellard | fmt = NULL;
|
308 | ea2384d3 | bellard | for(;;) {
|
309 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
310 | ea2384d3 | bellard | if (c == -1) |
311 | ea2384d3 | bellard | break;
|
312 | ea2384d3 | bellard | switch(c) {
|
313 | ea2384d3 | bellard | case 'h': |
314 | ea2384d3 | bellard | help(); |
315 | ea2384d3 | bellard | break;
|
316 | ea2384d3 | bellard | case 'f': |
317 | ea2384d3 | bellard | fmt = optarg; |
318 | ea2384d3 | bellard | break;
|
319 | ea2384d3 | bellard | } |
320 | ea2384d3 | bellard | } |
321 | 5fafdf24 | ths | if (optind >= argc)
|
322 | ea2384d3 | bellard | help(); |
323 | ea2384d3 | bellard | filename = argv[optind++]; |
324 | ea2384d3 | bellard | |
325 | ea2384d3 | bellard | bs = bdrv_new("");
|
326 | ea2384d3 | bellard | if (!bs)
|
327 | ea2384d3 | bellard | error("Not enough memory");
|
328 | ea2384d3 | bellard | if (fmt) {
|
329 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
330 | ea2384d3 | bellard | if (!drv)
|
331 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
332 | ea2384d3 | bellard | } else {
|
333 | ea2384d3 | bellard | drv = NULL;
|
334 | ea2384d3 | bellard | } |
335 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
336 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
337 | ea2384d3 | bellard | } |
338 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
339 | ea2384d3 | bellard | switch(ret) {
|
340 | ea2384d3 | bellard | case 0: |
341 | ea2384d3 | bellard | printf("Image committed.\n");
|
342 | ea2384d3 | bellard | break;
|
343 | ea2384d3 | bellard | case -ENOENT:
|
344 | ea2384d3 | bellard | error("No disk inserted");
|
345 | ea2384d3 | bellard | break;
|
346 | ea2384d3 | bellard | case -EACCES:
|
347 | ea2384d3 | bellard | error("Image is read-only");
|
348 | ea2384d3 | bellard | break;
|
349 | ea2384d3 | bellard | case -ENOTSUP:
|
350 | ea2384d3 | bellard | error("Image is already committed");
|
351 | ea2384d3 | bellard | break;
|
352 | ea2384d3 | bellard | default:
|
353 | ea2384d3 | bellard | error("Error while committing image");
|
354 | ea2384d3 | bellard | break;
|
355 | ea2384d3 | bellard | } |
356 | ea2384d3 | bellard | |
357 | ea2384d3 | bellard | bdrv_delete(bs); |
358 | ea2384d3 | bellard | return 0; |
359 | ea2384d3 | bellard | } |
360 | ea2384d3 | bellard | |
361 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
362 | ea2384d3 | bellard | { |
363 | ea2384d3 | bellard | int i;
|
364 | ea2384d3 | bellard | len >>= 2;
|
365 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
366 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
367 | ea2384d3 | bellard | return 1; |
368 | ea2384d3 | bellard | } |
369 | ea2384d3 | bellard | return 0; |
370 | ea2384d3 | bellard | } |
371 | ea2384d3 | bellard | |
372 | f58c7b35 | ths | /*
|
373 | f58c7b35 | ths | * Returns true iff the first sector pointed to by 'buf' contains at least
|
374 | f58c7b35 | ths | * a non-NUL byte.
|
375 | f58c7b35 | ths | *
|
376 | f58c7b35 | ths | * 'pnum' is set to the number of sectors (including and immediately following
|
377 | f58c7b35 | ths | * the first one) that are known to be in the same allocated/unallocated state.
|
378 | f58c7b35 | ths | */
|
379 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
380 | ea2384d3 | bellard | { |
381 | ea2384d3 | bellard | int v, i;
|
382 | ea2384d3 | bellard | |
383 | ea2384d3 | bellard | if (n <= 0) { |
384 | ea2384d3 | bellard | *pnum = 0;
|
385 | ea2384d3 | bellard | return 0; |
386 | ea2384d3 | bellard | } |
387 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
|
388 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
389 | ea2384d3 | bellard | buf += 512;
|
390 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
391 | ea2384d3 | bellard | break;
|
392 | ea2384d3 | bellard | } |
393 | ea2384d3 | bellard | *pnum = i; |
394 | ea2384d3 | bellard | return v;
|
395 | ea2384d3 | bellard | } |
396 | ea2384d3 | bellard | |
397 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
398 | ea2384d3 | bellard | |
399 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
400 | ea2384d3 | bellard | { |
401 | 926c2d23 | balrog | int c, ret, n, n1, bs_n, bs_i, flags, cluster_size, cluster_sectors;
|
402 | f58c7b35 | ths | const char *fmt, *out_fmt, *out_baseimg, *out_filename; |
403 | ea2384d3 | bellard | BlockDriver *drv; |
404 | 926c2d23 | balrog | BlockDriverState **bs, *out_bs; |
405 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
406 | 96b8f136 | ths | uint64_t bs_sectors; |
407 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
408 | ea2384d3 | bellard | const uint8_t *buf1;
|
409 | faea38e7 | bellard | BlockDriverInfo bdi; |
410 | ea2384d3 | bellard | |
411 | ea2384d3 | bellard | fmt = NULL;
|
412 | ea2384d3 | bellard | out_fmt = "raw";
|
413 | f58c7b35 | ths | out_baseimg = NULL;
|
414 | ec36ba14 | ths | flags = 0;
|
415 | ea2384d3 | bellard | for(;;) {
|
416 | f58c7b35 | ths | c = getopt(argc, argv, "f:O:B:hce6");
|
417 | ea2384d3 | bellard | if (c == -1) |
418 | ea2384d3 | bellard | break;
|
419 | ea2384d3 | bellard | switch(c) {
|
420 | ea2384d3 | bellard | case 'h': |
421 | ea2384d3 | bellard | help(); |
422 | ea2384d3 | bellard | break;
|
423 | ea2384d3 | bellard | case 'f': |
424 | ea2384d3 | bellard | fmt = optarg; |
425 | ea2384d3 | bellard | break;
|
426 | ea2384d3 | bellard | case 'O': |
427 | ea2384d3 | bellard | out_fmt = optarg; |
428 | ea2384d3 | bellard | break;
|
429 | f58c7b35 | ths | case 'B': |
430 | f58c7b35 | ths | out_baseimg = optarg; |
431 | f58c7b35 | ths | break;
|
432 | ea2384d3 | bellard | case 'c': |
433 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPRESS; |
434 | ea2384d3 | bellard | break;
|
435 | ea2384d3 | bellard | case 'e': |
436 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
437 | ec36ba14 | ths | break;
|
438 | ec36ba14 | ths | case '6': |
439 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
440 | ea2384d3 | bellard | break;
|
441 | ea2384d3 | bellard | } |
442 | ea2384d3 | bellard | } |
443 | 3b46e624 | ths | |
444 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
445 | 926c2d23 | balrog | if (bs_n < 1) help(); |
446 | 926c2d23 | balrog | |
447 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
448 | f58c7b35 | ths | |
449 | f58c7b35 | ths | if (bs_n > 1 && out_baseimg) |
450 | f58c7b35 | ths | error("-B makes no sense when concatenating multiple input images");
|
451 | 926c2d23 | balrog | |
452 | 926c2d23 | balrog | bs = calloc(bs_n, sizeof(BlockDriverState *));
|
453 | 926c2d23 | balrog | if (!bs)
|
454 | 926c2d23 | balrog | error("Out of memory");
|
455 | 926c2d23 | balrog | |
456 | 926c2d23 | balrog | total_sectors = 0;
|
457 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
458 | 926c2d23 | balrog | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt); |
459 | 926c2d23 | balrog | if (!bs[bs_i])
|
460 | 926c2d23 | balrog | error("Could not open '%s'", argv[optind + bs_i]);
|
461 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
462 | 926c2d23 | balrog | total_sectors += bs_sectors; |
463 | 926c2d23 | balrog | } |
464 | ea2384d3 | bellard | |
465 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
466 | ea2384d3 | bellard | if (!drv)
|
467 | d34dda5e | ths | error("Unknown file format '%s'", out_fmt);
|
468 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
469 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
470 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
471 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
472 | d8871c5a | ths | if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk)
|
473 | ec36ba14 | ths | error("Alternative compatibility level not supported for this file format");
|
474 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
|
475 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
476 | 926c2d23 | balrog | |
477 | f58c7b35 | ths | ret = bdrv_create(drv, out_filename, total_sectors, out_baseimg, flags); |
478 | ea2384d3 | bellard | if (ret < 0) { |
479 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
480 | 3c56521b | bellard | error("Formatting not supported for file format '%s'", fmt);
|
481 | ea2384d3 | bellard | } else {
|
482 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
483 | ea2384d3 | bellard | } |
484 | ea2384d3 | bellard | } |
485 | 3b46e624 | ths | |
486 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
487 | ea2384d3 | bellard | |
488 | 926c2d23 | balrog | bs_i = 0;
|
489 | 926c2d23 | balrog | bs_offset = 0;
|
490 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
491 | 926c2d23 | balrog | |
492 | 926c2d23 | balrog | if (flags & BLOCK_FLAG_COMPRESS) {
|
493 | faea38e7 | bellard | if (bdrv_get_info(out_bs, &bdi) < 0) |
494 | faea38e7 | bellard | error("could not get block driver info");
|
495 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
496 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
497 | ea2384d3 | bellard | error("invalid cluster size");
|
498 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
499 | ea2384d3 | bellard | sector_num = 0;
|
500 | ea2384d3 | bellard | for(;;) {
|
501 | 926c2d23 | balrog | int64_t bs_num; |
502 | 926c2d23 | balrog | int remainder;
|
503 | 926c2d23 | balrog | uint8_t *buf2; |
504 | 926c2d23 | balrog | |
505 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
506 | ea2384d3 | bellard | if (nb_sectors <= 0) |
507 | ea2384d3 | bellard | break;
|
508 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
509 | ea2384d3 | bellard | n = cluster_sectors; |
510 | ea2384d3 | bellard | else
|
511 | ea2384d3 | bellard | n = nb_sectors; |
512 | 926c2d23 | balrog | |
513 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
514 | 926c2d23 | balrog | assert (bs_num >= 0);
|
515 | 926c2d23 | balrog | remainder = n; |
516 | 926c2d23 | balrog | buf2 = buf; |
517 | 926c2d23 | balrog | while (remainder > 0) { |
518 | 926c2d23 | balrog | int nlow;
|
519 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
520 | 926c2d23 | balrog | bs_i++; |
521 | 926c2d23 | balrog | assert (bs_i < bs_n); |
522 | 926c2d23 | balrog | bs_offset += bs_sectors; |
523 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
524 | 926c2d23 | balrog | bs_num = 0;
|
525 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, "
|
526 | 926c2d23 | balrog | "bs_i=%d, bs_offset=%lld, bs_sectors=%lld\n",
|
527 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
528 | 926c2d23 | balrog | } |
529 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
530 | 926c2d23 | balrog | |
531 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
532 | 926c2d23 | balrog | |
533 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], bs_num, buf2, nlow) < 0) |
534 | 926c2d23 | balrog | error("error while reading");
|
535 | 926c2d23 | balrog | |
536 | 926c2d23 | balrog | buf2 += nlow * 512;
|
537 | 926c2d23 | balrog | bs_num += nlow; |
538 | 926c2d23 | balrog | |
539 | 926c2d23 | balrog | remainder -= nlow; |
540 | 926c2d23 | balrog | } |
541 | 926c2d23 | balrog | assert (remainder == 0);
|
542 | 926c2d23 | balrog | |
543 | ea2384d3 | bellard | if (n < cluster_sectors)
|
544 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
545 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
546 | 5fafdf24 | ths | if (bdrv_write_compressed(out_bs, sector_num, buf,
|
547 | faea38e7 | bellard | cluster_sectors) != 0)
|
548 | ec3757de | bellard | error("error while compressing sector %" PRId64,
|
549 | ec3757de | bellard | sector_num); |
550 | ea2384d3 | bellard | } |
551 | ea2384d3 | bellard | sector_num += n; |
552 | ea2384d3 | bellard | } |
553 | faea38e7 | bellard | /* signal EOF to align */
|
554 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
555 | ea2384d3 | bellard | } else {
|
556 | f58c7b35 | ths | sector_num = 0; // total number of sectors converted so far |
557 | ea2384d3 | bellard | for(;;) {
|
558 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
559 | ea2384d3 | bellard | if (nb_sectors <= 0) |
560 | ea2384d3 | bellard | break;
|
561 | ea2384d3 | bellard | if (nb_sectors >= (IO_BUF_SIZE / 512)) |
562 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
563 | ea2384d3 | bellard | else
|
564 | ea2384d3 | bellard | n = nb_sectors; |
565 | 926c2d23 | balrog | |
566 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
567 | 926c2d23 | balrog | bs_i ++; |
568 | 926c2d23 | balrog | assert (bs_i < bs_n); |
569 | 926c2d23 | balrog | bs_offset += bs_sectors; |
570 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
571 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, bs_i=%d, "
|
572 | 926c2d23 | balrog | "bs_offset=%lld, bs_sectors=%lld\n",
|
573 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
574 | 926c2d23 | balrog | } |
575 | 926c2d23 | balrog | |
576 | 926c2d23 | balrog | if (n > bs_offset + bs_sectors - sector_num)
|
577 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
578 | 926c2d23 | balrog | |
579 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
580 | f58c7b35 | ths | assume that sectors which are unallocated in the input image
|
581 | f58c7b35 | ths | are present in both the output's and input's base images (no
|
582 | f58c7b35 | ths | need to copy them). */
|
583 | f58c7b35 | ths | if (out_baseimg) {
|
584 | f58c7b35 | ths | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, n, &n1)) {
|
585 | f58c7b35 | ths | sector_num += n1; |
586 | f58c7b35 | ths | continue;
|
587 | f58c7b35 | ths | } |
588 | f58c7b35 | ths | /* The next 'n1' sectors are allocated in the input image. Copy
|
589 | f58c7b35 | ths | only those as they may be followed by unallocated sectors. */
|
590 | f58c7b35 | ths | n = n1; |
591 | f58c7b35 | ths | } |
592 | f58c7b35 | ths | |
593 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n) < 0) |
594 | ea2384d3 | bellard | error("error while reading");
|
595 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
596 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
597 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
598 | ea2384d3 | bellard | buf1 = buf; |
599 | ea2384d3 | bellard | while (n > 0) { |
600 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
601 | f58c7b35 | ths | copy all sectors even the ones containing only NUL bytes,
|
602 | f58c7b35 | ths | because they may differ from the sectors in the base image. */
|
603 | f58c7b35 | ths | if (out_baseimg || is_allocated_sectors(buf1, n, &n1)) {
|
604 | 5fafdf24 | ths | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
605 | ea2384d3 | bellard | error("error while writing");
|
606 | ea2384d3 | bellard | } |
607 | ea2384d3 | bellard | sector_num += n1; |
608 | ea2384d3 | bellard | n -= n1; |
609 | ea2384d3 | bellard | buf1 += n1 * 512;
|
610 | ea2384d3 | bellard | } |
611 | ea2384d3 | bellard | } |
612 | ea2384d3 | bellard | } |
613 | ea2384d3 | bellard | bdrv_delete(out_bs); |
614 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) |
615 | 926c2d23 | balrog | bdrv_delete(bs[bs_i]); |
616 | 926c2d23 | balrog | free(bs); |
617 | ea2384d3 | bellard | return 0; |
618 | ea2384d3 | bellard | } |
619 | ea2384d3 | bellard | |
620 | 57d1a2b6 | bellard | #ifdef _WIN32
|
621 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
622 | 57d1a2b6 | bellard | { |
623 | e8445331 | bellard | typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); |
624 | e8445331 | bellard | get_compressed_t get_compressed; |
625 | 57d1a2b6 | bellard | struct _stati64 st;
|
626 | e8445331 | bellard | |
627 | e8445331 | bellard | /* WinNT support GetCompressedFileSize to determine allocate size */
|
628 | e8445331 | bellard | get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); |
629 | e8445331 | bellard | if (get_compressed) {
|
630 | e8445331 | bellard | DWORD high, low; |
631 | e8445331 | bellard | low = get_compressed(filename, &high); |
632 | e8445331 | bellard | if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) |
633 | e8445331 | bellard | return (((int64_t) high) << 32) + low; |
634 | e8445331 | bellard | } |
635 | e8445331 | bellard | |
636 | 5fafdf24 | ths | if (_stati64(filename, &st) < 0) |
637 | 57d1a2b6 | bellard | return -1; |
638 | 57d1a2b6 | bellard | return st.st_size;
|
639 | 57d1a2b6 | bellard | } |
640 | 57d1a2b6 | bellard | #else
|
641 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
642 | 57d1a2b6 | bellard | { |
643 | 57d1a2b6 | bellard | struct stat st;
|
644 | 5fafdf24 | ths | if (stat(filename, &st) < 0) |
645 | 57d1a2b6 | bellard | return -1; |
646 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
647 | 57d1a2b6 | bellard | } |
648 | 57d1a2b6 | bellard | #endif
|
649 | 57d1a2b6 | bellard | |
650 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
651 | faea38e7 | bellard | { |
652 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
653 | faea38e7 | bellard | int nb_sns, i;
|
654 | faea38e7 | bellard | char buf[256]; |
655 | faea38e7 | bellard | |
656 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
657 | faea38e7 | bellard | if (nb_sns <= 0) |
658 | faea38e7 | bellard | return;
|
659 | faea38e7 | bellard | printf("Snapshot list:\n");
|
660 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
661 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
662 | faea38e7 | bellard | sn = &sn_tab[i]; |
663 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
664 | faea38e7 | bellard | } |
665 | faea38e7 | bellard | qemu_free(sn_tab); |
666 | faea38e7 | bellard | } |
667 | faea38e7 | bellard | |
668 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
669 | ea2384d3 | bellard | { |
670 | ea2384d3 | bellard | int c;
|
671 | ea2384d3 | bellard | const char *filename, *fmt; |
672 | ea2384d3 | bellard | BlockDriver *drv; |
673 | ea2384d3 | bellard | BlockDriverState *bs; |
674 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
675 | 96b8f136 | ths | uint64_t total_sectors; |
676 | 96b8f136 | ths | int64_t allocated_size; |
677 | 93b6b2a3 | bellard | char backing_filename[1024]; |
678 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
679 | faea38e7 | bellard | BlockDriverInfo bdi; |
680 | ea2384d3 | bellard | |
681 | ea2384d3 | bellard | fmt = NULL;
|
682 | ea2384d3 | bellard | for(;;) {
|
683 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
684 | ea2384d3 | bellard | if (c == -1) |
685 | ea2384d3 | bellard | break;
|
686 | ea2384d3 | bellard | switch(c) {
|
687 | ea2384d3 | bellard | case 'h': |
688 | ea2384d3 | bellard | help(); |
689 | ea2384d3 | bellard | break;
|
690 | ea2384d3 | bellard | case 'f': |
691 | ea2384d3 | bellard | fmt = optarg; |
692 | ea2384d3 | bellard | break;
|
693 | ea2384d3 | bellard | } |
694 | ea2384d3 | bellard | } |
695 | 5fafdf24 | ths | if (optind >= argc)
|
696 | ea2384d3 | bellard | help(); |
697 | ea2384d3 | bellard | filename = argv[optind++]; |
698 | ea2384d3 | bellard | |
699 | ea2384d3 | bellard | bs = bdrv_new("");
|
700 | ea2384d3 | bellard | if (!bs)
|
701 | ea2384d3 | bellard | error("Not enough memory");
|
702 | ea2384d3 | bellard | if (fmt) {
|
703 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
704 | ea2384d3 | bellard | if (!drv)
|
705 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
706 | ea2384d3 | bellard | } else {
|
707 | ea2384d3 | bellard | drv = NULL;
|
708 | ea2384d3 | bellard | } |
709 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
710 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
711 | ea2384d3 | bellard | } |
712 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
713 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
714 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
715 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
716 | 57d1a2b6 | bellard | if (allocated_size < 0) |
717 | a10ea30b | blueswir1 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
718 | de167e41 | bellard | else
|
719 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
720 | de167e41 | bellard | allocated_size); |
721 | ea2384d3 | bellard | printf("image: %s\n"
|
722 | ea2384d3 | bellard | "file format: %s\n"
|
723 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
724 | ea2384d3 | bellard | "disk size: %s\n",
|
725 | 5fafdf24 | ths | filename, fmt_name, size_buf, |
726 | ec3757de | bellard | (total_sectors * 512),
|
727 | ea2384d3 | bellard | dsize_buf); |
728 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
729 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
730 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
731 | 5fafdf24 | ths | if (bdi.cluster_size != 0) |
732 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
733 | 7e739a58 | aliguori | if (bdi.highest_alloc)
|
734 | 4f94dc64 | malc | printf("highest_alloc: %" PRId64 "\n", bdi.highest_alloc); |
735 | 7e739a58 | aliguori | if (bdi.num_free_bytes)
|
736 | 4f94dc64 | malc | printf("num_free_bytes: %" PRId64 "\n", bdi.num_free_bytes); |
737 | faea38e7 | bellard | } |
738 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
739 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
740 | 93b6b2a3 | bellard | path_combine(backing_filename2, sizeof(backing_filename2),
|
741 | 93b6b2a3 | bellard | filename, backing_filename); |
742 | 5fafdf24 | ths | printf("backing file: %s (actual path: %s)\n",
|
743 | 93b6b2a3 | bellard | backing_filename, |
744 | 93b6b2a3 | bellard | backing_filename2); |
745 | faea38e7 | bellard | } |
746 | faea38e7 | bellard | dump_snapshots(bs); |
747 | ea2384d3 | bellard | bdrv_delete(bs); |
748 | ea2384d3 | bellard | return 0; |
749 | ea2384d3 | bellard | } |
750 | ea2384d3 | bellard | |
751 | f7b4a940 | aliguori | #define SNAPSHOT_LIST 1 |
752 | f7b4a940 | aliguori | #define SNAPSHOT_CREATE 2 |
753 | f7b4a940 | aliguori | #define SNAPSHOT_APPLY 3 |
754 | f7b4a940 | aliguori | #define SNAPSHOT_DELETE 4 |
755 | f7b4a940 | aliguori | |
756 | f7b4a940 | aliguori | static void img_snapshot(int argc, char **argv) |
757 | f7b4a940 | aliguori | { |
758 | f7b4a940 | aliguori | BlockDriverState *bs; |
759 | f7b4a940 | aliguori | QEMUSnapshotInfo sn; |
760 | f7b4a940 | aliguori | char *filename, *snapshot_name = NULL; |
761 | 40a4539e | aliguori | int c, ret;
|
762 | f7b4a940 | aliguori | int action = 0; |
763 | f7b4a940 | aliguori | qemu_timeval tv; |
764 | f7b4a940 | aliguori | |
765 | f7b4a940 | aliguori | /* Parse commandline parameters */
|
766 | f7b4a940 | aliguori | for(;;) {
|
767 | f7b4a940 | aliguori | c = getopt(argc, argv, "la:c:d:h");
|
768 | f7b4a940 | aliguori | if (c == -1) |
769 | f7b4a940 | aliguori | break;
|
770 | f7b4a940 | aliguori | switch(c) {
|
771 | f7b4a940 | aliguori | case 'h': |
772 | f7b4a940 | aliguori | help(); |
773 | f7b4a940 | aliguori | return;
|
774 | f7b4a940 | aliguori | case 'l': |
775 | f7b4a940 | aliguori | if (action) {
|
776 | f7b4a940 | aliguori | help(); |
777 | f7b4a940 | aliguori | return;
|
778 | f7b4a940 | aliguori | } |
779 | f7b4a940 | aliguori | action = SNAPSHOT_LIST; |
780 | f7b4a940 | aliguori | break;
|
781 | f7b4a940 | aliguori | case 'a': |
782 | f7b4a940 | aliguori | if (action) {
|
783 | f7b4a940 | aliguori | help(); |
784 | f7b4a940 | aliguori | return;
|
785 | f7b4a940 | aliguori | } |
786 | f7b4a940 | aliguori | action = SNAPSHOT_APPLY; |
787 | f7b4a940 | aliguori | snapshot_name = optarg; |
788 | f7b4a940 | aliguori | break;
|
789 | f7b4a940 | aliguori | case 'c': |
790 | f7b4a940 | aliguori | if (action) {
|
791 | f7b4a940 | aliguori | help(); |
792 | f7b4a940 | aliguori | return;
|
793 | f7b4a940 | aliguori | } |
794 | f7b4a940 | aliguori | action = SNAPSHOT_CREATE; |
795 | f7b4a940 | aliguori | snapshot_name = optarg; |
796 | f7b4a940 | aliguori | break;
|
797 | f7b4a940 | aliguori | case 'd': |
798 | f7b4a940 | aliguori | if (action) {
|
799 | f7b4a940 | aliguori | help(); |
800 | f7b4a940 | aliguori | return;
|
801 | f7b4a940 | aliguori | } |
802 | f7b4a940 | aliguori | action = SNAPSHOT_DELETE; |
803 | f7b4a940 | aliguori | snapshot_name = optarg; |
804 | f7b4a940 | aliguori | break;
|
805 | f7b4a940 | aliguori | } |
806 | f7b4a940 | aliguori | } |
807 | f7b4a940 | aliguori | |
808 | f7b4a940 | aliguori | if (optind >= argc)
|
809 | f7b4a940 | aliguori | help(); |
810 | f7b4a940 | aliguori | filename = argv[optind++]; |
811 | f7b4a940 | aliguori | |
812 | f7b4a940 | aliguori | /* Open the image */
|
813 | f7b4a940 | aliguori | bs = bdrv_new("");
|
814 | f7b4a940 | aliguori | if (!bs)
|
815 | f7b4a940 | aliguori | error("Not enough memory");
|
816 | f7b4a940 | aliguori | |
817 | f7b4a940 | aliguori | if (bdrv_open2(bs, filename, 0, NULL) < 0) { |
818 | f7b4a940 | aliguori | error("Could not open '%s'", filename);
|
819 | f7b4a940 | aliguori | } |
820 | f7b4a940 | aliguori | |
821 | f7b4a940 | aliguori | /* Perform the requested action */
|
822 | f7b4a940 | aliguori | switch(action) {
|
823 | f7b4a940 | aliguori | case SNAPSHOT_LIST:
|
824 | f7b4a940 | aliguori | dump_snapshots(bs); |
825 | f7b4a940 | aliguori | break;
|
826 | f7b4a940 | aliguori | |
827 | f7b4a940 | aliguori | case SNAPSHOT_CREATE:
|
828 | f7b4a940 | aliguori | memset(&sn, 0, sizeof(sn)); |
829 | f7b4a940 | aliguori | pstrcpy(sn.name, sizeof(sn.name), snapshot_name);
|
830 | f7b4a940 | aliguori | |
831 | f7b4a940 | aliguori | qemu_gettimeofday(&tv); |
832 | f7b4a940 | aliguori | sn.date_sec = tv.tv_sec; |
833 | f7b4a940 | aliguori | sn.date_nsec = tv.tv_usec * 1000;
|
834 | f7b4a940 | aliguori | |
835 | f7b4a940 | aliguori | ret = bdrv_snapshot_create(bs, &sn); |
836 | f7b4a940 | aliguori | if (ret)
|
837 | f7b4a940 | aliguori | error("Could not create snapshot '%s': %d (%s)",
|
838 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
839 | f7b4a940 | aliguori | break;
|
840 | f7b4a940 | aliguori | |
841 | f7b4a940 | aliguori | case SNAPSHOT_APPLY:
|
842 | f7b4a940 | aliguori | ret = bdrv_snapshot_goto(bs, snapshot_name); |
843 | f7b4a940 | aliguori | if (ret)
|
844 | f7b4a940 | aliguori | error("Could not apply snapshot '%s': %d (%s)",
|
845 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
846 | f7b4a940 | aliguori | break;
|
847 | f7b4a940 | aliguori | |
848 | f7b4a940 | aliguori | case SNAPSHOT_DELETE:
|
849 | f7b4a940 | aliguori | ret = bdrv_snapshot_delete(bs, snapshot_name); |
850 | f7b4a940 | aliguori | if (ret)
|
851 | f7b4a940 | aliguori | error("Could not delete snapshot '%s': %d (%s)",
|
852 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
853 | f7b4a940 | aliguori | break;
|
854 | f7b4a940 | aliguori | } |
855 | f7b4a940 | aliguori | |
856 | f7b4a940 | aliguori | /* Cleanup */
|
857 | f7b4a940 | aliguori | bdrv_delete(bs); |
858 | f7b4a940 | aliguori | } |
859 | f7b4a940 | aliguori | |
860 | ea2384d3 | bellard | int main(int argc, char **argv) |
861 | ea2384d3 | bellard | { |
862 | ea2384d3 | bellard | const char *cmd; |
863 | ea2384d3 | bellard | |
864 | ea2384d3 | bellard | bdrv_init(); |
865 | ea2384d3 | bellard | if (argc < 2) |
866 | ea2384d3 | bellard | help(); |
867 | ea2384d3 | bellard | cmd = argv[1];
|
868 | e3888186 | bellard | optind++; |
869 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
870 | ea2384d3 | bellard | img_create(argc, argv); |
871 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
872 | ea2384d3 | bellard | img_commit(argc, argv); |
873 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
874 | ea2384d3 | bellard | img_convert(argc, argv); |
875 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
876 | ea2384d3 | bellard | img_info(argc, argv); |
877 | f7b4a940 | aliguori | } else if (!strcmp(cmd, "snapshot")) { |
878 | f7b4a940 | aliguori | img_snapshot(argc, argv); |
879 | ea2384d3 | bellard | } else {
|
880 | ea2384d3 | bellard | help(); |
881 | ea2384d3 | bellard | } |
882 | ea2384d3 | bellard | return 0; |
883 | ea2384d3 | bellard | } |