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1 | ea2384d3 | bellard | /*
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2 | fb43f4dd | bellard | * QEMU disk image utility
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3 | 5fafdf24 | ths | *
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4 | 68d0f70e | bellard | * Copyright (c) 2003-2008 Fabrice Bellard
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5 | 5fafdf24 | ths | *
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6 | ea2384d3 | bellard | * Permission is hereby granted, free of charge, to any person obtaining a copy
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7 | ea2384d3 | bellard | * of this software and associated documentation files (the "Software"), to deal
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8 | ea2384d3 | bellard | * in the Software without restriction, including without limitation the rights
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9 | ea2384d3 | bellard | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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10 | ea2384d3 | bellard | * copies of the Software, and to permit persons to whom the Software is
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11 | ea2384d3 | bellard | * furnished to do so, subject to the following conditions:
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12 | ea2384d3 | bellard | *
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13 | ea2384d3 | bellard | * The above copyright notice and this permission notice shall be included in
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14 | ea2384d3 | bellard | * all copies or substantial portions of the Software.
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15 | ea2384d3 | bellard | *
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16 | ea2384d3 | bellard | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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17 | ea2384d3 | bellard | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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18 | ea2384d3 | bellard | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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19 | ea2384d3 | bellard | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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20 | ea2384d3 | bellard | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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21 | ea2384d3 | bellard | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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22 | ea2384d3 | bellard | * THE SOFTWARE.
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23 | ea2384d3 | bellard | */
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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
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30 | 4fddf62a | ths | #define WIN32_LEAN_AND_MEAN
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31 | e8445331 | bellard | #include <windows.h> |
32 | e8445331 | bellard | #endif
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33 | e8445331 | bellard | |
34 | 137519ce | aurel32 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */
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35 | 137519ce | aurel32 | #define BRDV_O_FLAGS BDRV_O_CACHE_WB
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36 | 137519ce | aurel32 | |
37 | 7d99a001 | blueswir1 | static void 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: ");
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42 | ea2384d3 | bellard | vfprintf(stderr, fmt, ap); |
43 | ea2384d3 | bellard | fprintf(stderr, "\n");
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44 | ea2384d3 | bellard | exit(1);
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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);
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51 | ea2384d3 | bellard | } |
52 | ea2384d3 | bellard | |
53 | 3f379ab1 | pbrook | static void help(void) |
54 | ea2384d3 | bellard | { |
55 | 68d0f70e | bellard | printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
56 | 57d1a2b6 | bellard | "usage: qemu-img command [command options]\n"
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57 | ea2384d3 | bellard | "QEMU disk image utility\n"
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58 | ea2384d3 | bellard | "\n"
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59 | ea2384d3 | bellard | "Command syntax:\n"
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60 | ec36ba14 | ths | " create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
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61 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
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62 | f58c7b35 | ths | " convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] [-B output_base_image] filename [filename2 [...]] output_filename\n"
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63 | ea2384d3 | bellard | " info [-f fmt] filename\n"
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64 | f7b4a940 | aliguori | " snapshot [-l|-a snapshot|-c snapshot|-d snapshot] filename\n"
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65 | ea2384d3 | bellard | "\n"
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66 | ea2384d3 | bellard | "Command parameters:\n"
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67 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
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68 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
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69 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
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70 | f58c7b35 | ths | " 'output_base_image' forces the output image to be created as a copy on write\n"
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71 | f58c7b35 | ths | " image of the specified base image; 'output_base_image' should have the same\n"
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72 | f58c7b35 | ths | " content as the input's base image, however the path, image format, etc may\n"
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73 | f58c7b35 | ths | " differ\n"
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74 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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75 | ea2384d3 | bellard | " 'size' is the disk image size in kilobytes. Optional suffixes 'M' (megabyte)\n"
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76 | ea2384d3 | bellard | " and 'G' (gigabyte) are supported\n"
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77 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
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78 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
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79 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
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80 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
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81 | ec36ba14 | ths | " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
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82 | f7b4a940 | aliguori | "\n"
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83 | f7b4a940 | aliguori | " Parameters to snapshot subcommand:\n"
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84 | f7b4a940 | aliguori | " 'snapshot' is the name of the snapshot to create, apply or delete\n"
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85 | f7b4a940 | aliguori | " '-a' applies a snapshot (revert disk to saved state)\n"
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86 | f7b4a940 | aliguori | " '-c' creates a snapshot\n"
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87 | f7b4a940 | aliguori | " '-d' deletes a snapshot\n"
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88 | f7b4a940 | aliguori | " '-l' lists all snapshots in the given image\n"
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89 | ea2384d3 | bellard | ); |
90 | ea2384d3 | bellard | printf("\nSupported format:");
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91 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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92 | ea2384d3 | bellard | printf("\n");
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93 | ea2384d3 | bellard | exit(1);
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94 | ea2384d3 | bellard | } |
95 | ea2384d3 | bellard | |
96 | ea2384d3 | bellard | #if defined(WIN32)
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97 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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98 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
99 | ea2384d3 | bellard | { |
100 | ea2384d3 | bellard | int c, i;
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101 | ea2384d3 | bellard | printf("Password: ");
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102 | ea2384d3 | bellard | fflush(stdout); |
103 | ea2384d3 | bellard | i = 0;
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104 | ea2384d3 | bellard | for(;;) {
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105 | ea2384d3 | bellard | c = getchar(); |
106 | ea2384d3 | bellard | if (c == '\n') |
107 | ea2384d3 | bellard | break;
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108 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
109 | ea2384d3 | bellard | buf[i++] = c; |
110 | ea2384d3 | bellard | } |
111 | ea2384d3 | bellard | buf[i] = '\0';
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112 | ea2384d3 | bellard | return 0; |
113 | ea2384d3 | bellard | } |
114 | ea2384d3 | bellard | |
115 | ea2384d3 | bellard | #else
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116 | ea2384d3 | bellard | |
117 | ea2384d3 | bellard | #include <termios.h> |
118 | ea2384d3 | bellard | |
119 | ea2384d3 | bellard | static struct termios oldtty; |
120 | ea2384d3 | bellard | |
121 | ea2384d3 | bellard | static void term_exit(void) |
122 | ea2384d3 | bellard | { |
123 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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124 | ea2384d3 | bellard | } |
125 | ea2384d3 | bellard | |
126 | ea2384d3 | bellard | static void term_init(void) |
127 | ea2384d3 | bellard | { |
128 | ea2384d3 | bellard | struct termios tty;
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129 | ea2384d3 | bellard | |
130 | ea2384d3 | bellard | tcgetattr (0, &tty);
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131 | ea2384d3 | bellard | oldtty = tty; |
132 | ea2384d3 | bellard | |
133 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
134 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
135 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
136 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
137 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
138 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
139 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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140 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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141 | 3b46e624 | ths | |
142 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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143 | ea2384d3 | bellard | |
144 | ea2384d3 | bellard | atexit(term_exit); |
145 | ea2384d3 | bellard | } |
146 | ea2384d3 | bellard | |
147 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
148 | ea2384d3 | bellard | { |
149 | ea2384d3 | bellard | uint8_t ch; |
150 | ea2384d3 | bellard | int i, ret;
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151 | ea2384d3 | bellard | |
152 | ea2384d3 | bellard | printf("password: ");
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153 | ea2384d3 | bellard | fflush(stdout); |
154 | ea2384d3 | bellard | term_init(); |
155 | ea2384d3 | bellard | i = 0;
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156 | ea2384d3 | bellard | for(;;) {
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157 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
158 | ea2384d3 | bellard | if (ret == -1) { |
159 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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160 | ea2384d3 | bellard | continue;
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161 | ea2384d3 | bellard | } else {
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162 | ea2384d3 | bellard | ret = -1;
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163 | ea2384d3 | bellard | break;
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164 | ea2384d3 | bellard | } |
165 | ea2384d3 | bellard | } else if (ret == 0) { |
166 | ea2384d3 | bellard | ret = -1;
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167 | ea2384d3 | bellard | break;
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168 | ea2384d3 | bellard | } else {
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169 | ea2384d3 | bellard | if (ch == '\r') { |
170 | ea2384d3 | bellard | ret = 0;
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171 | ea2384d3 | bellard | break;
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172 | ea2384d3 | bellard | } |
173 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
174 | ea2384d3 | bellard | buf[i++] = ch; |
175 | ea2384d3 | bellard | } |
176 | ea2384d3 | bellard | } |
177 | ea2384d3 | bellard | term_exit(); |
178 | ea2384d3 | bellard | buf[i] = '\0';
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179 | ea2384d3 | bellard | printf("\n");
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180 | ea2384d3 | bellard | return ret;
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181 | ea2384d3 | bellard | } |
182 | ea2384d3 | bellard | #endif
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183 | ea2384d3 | bellard | |
184 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
185 | 75c23805 | bellard | const char *fmt) |
186 | 75c23805 | bellard | { |
187 | 75c23805 | bellard | BlockDriverState *bs; |
188 | 75c23805 | bellard | BlockDriver *drv; |
189 | 75c23805 | bellard | char password[256]; |
190 | 75c23805 | bellard | |
191 | 75c23805 | bellard | bs = bdrv_new("");
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192 | 75c23805 | bellard | if (!bs)
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193 | 75c23805 | bellard | error("Not enough memory");
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194 | 75c23805 | bellard | if (fmt) {
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195 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
196 | 75c23805 | bellard | if (!drv)
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197 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
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198 | 75c23805 | bellard | } else {
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199 | 75c23805 | bellard | drv = NULL;
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200 | 75c23805 | bellard | } |
201 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
202 | 75c23805 | bellard | error("Could not open '%s'", filename);
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203 | 75c23805 | bellard | } |
204 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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205 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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206 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
207 | 75c23805 | bellard | error("No password given");
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208 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
209 | 75c23805 | bellard | error("invalid password");
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210 | 75c23805 | bellard | } |
211 | 75c23805 | bellard | return bs;
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212 | 75c23805 | bellard | } |
213 | 75c23805 | bellard | |
214 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
215 | ea2384d3 | bellard | { |
216 | ec36ba14 | ths | int c, ret, flags;
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217 | ea2384d3 | bellard | const char *fmt = "raw"; |
218 | ea2384d3 | bellard | const char *filename; |
219 | ea2384d3 | bellard | const char *base_filename = NULL; |
220 | 96b8f136 | ths | uint64_t size; |
221 | ea2384d3 | bellard | const char *p; |
222 | ea2384d3 | bellard | BlockDriver *drv; |
223 | 3b46e624 | ths | |
224 | ec36ba14 | ths | flags = 0;
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225 | ea2384d3 | bellard | for(;;) {
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226 | ec36ba14 | ths | c = getopt(argc, argv, "b:f:he6");
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227 | ea2384d3 | bellard | if (c == -1) |
228 | ea2384d3 | bellard | break;
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229 | ea2384d3 | bellard | switch(c) {
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230 | ea2384d3 | bellard | case 'h': |
231 | ea2384d3 | bellard | help(); |
232 | ea2384d3 | bellard | break;
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233 | ea2384d3 | bellard | case 'b': |
234 | ea2384d3 | bellard | base_filename = optarg; |
235 | ea2384d3 | bellard | break;
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236 | ea2384d3 | bellard | case 'f': |
237 | ea2384d3 | bellard | fmt = optarg; |
238 | ea2384d3 | bellard | break;
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239 | ea2384d3 | bellard | case 'e': |
240 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
241 | ea2384d3 | bellard | break;
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242 | d8871c5a | ths | case '6': |
243 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
244 | d8871c5a | ths | break;
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245 | ea2384d3 | bellard | } |
246 | ea2384d3 | bellard | } |
247 | 5fafdf24 | ths | if (optind >= argc)
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248 | ea2384d3 | bellard | help(); |
249 | ea2384d3 | bellard | filename = argv[optind++]; |
250 | ea2384d3 | bellard | size = 0;
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251 | 75c23805 | bellard | if (base_filename) {
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252 | e94f3a60 | aliguori | BlockDriverState *bs; |
253 | 75c23805 | bellard | bs = bdrv_new_open(base_filename, NULL);
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254 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
255 | 75c23805 | bellard | size *= 512;
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256 | 75c23805 | bellard | bdrv_delete(bs); |
257 | 75c23805 | bellard | } else {
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258 | ea2384d3 | bellard | if (optind >= argc)
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259 | ea2384d3 | bellard | help(); |
260 | ea2384d3 | bellard | p = argv[optind]; |
261 | ea2384d3 | bellard | size = strtoul(p, (char **)&p, 0); |
262 | ea2384d3 | bellard | if (*p == 'M') { |
263 | ea2384d3 | bellard | size *= 1024 * 1024; |
264 | ea2384d3 | bellard | } else if (*p == 'G') { |
265 | ea2384d3 | bellard | size *= 1024 * 1024 * 1024; |
266 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
267 | ea2384d3 | bellard | size *= 1024;
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268 | ea2384d3 | bellard | } else {
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269 | ea2384d3 | bellard | help(); |
270 | ea2384d3 | bellard | } |
271 | ea2384d3 | bellard | } |
272 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
273 | ea2384d3 | bellard | if (!drv)
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274 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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275 | 0cfec834 | ths | printf("Formatting '%s', fmt=%s",
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276 | ea2384d3 | bellard | filename, fmt); |
277 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT)
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278 | ea2384d3 | bellard | printf(", encrypted");
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279 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPAT6)
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280 | ec36ba14 | ths | printf(", compatibility level=6");
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281 | 75c23805 | bellard | if (base_filename) {
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282 | 75c23805 | bellard | printf(", backing_file=%s",
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283 | ea2384d3 | bellard | base_filename); |
284 | 75c23805 | bellard | } |
285 | 96b8f136 | ths | printf(", size=%" PRIu64 " kB\n", size / 1024); |
286 | ec36ba14 | ths | ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
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287 | ea2384d3 | bellard | if (ret < 0) { |
288 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
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289 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
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290 | ea2384d3 | bellard | } else {
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291 | ea2384d3 | bellard | error("Error while formatting");
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292 | ea2384d3 | bellard | } |
293 | ea2384d3 | bellard | } |
294 | ea2384d3 | bellard | return 0; |
295 | ea2384d3 | bellard | } |
296 | ea2384d3 | bellard | |
297 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
298 | ea2384d3 | bellard | { |
299 | ea2384d3 | bellard | int c, ret;
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300 | ea2384d3 | bellard | const char *filename, *fmt; |
301 | ea2384d3 | bellard | BlockDriver *drv; |
302 | ea2384d3 | bellard | BlockDriverState *bs; |
303 | ea2384d3 | bellard | |
304 | ea2384d3 | bellard | fmt = NULL;
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305 | ea2384d3 | bellard | for(;;) {
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306 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
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307 | ea2384d3 | bellard | if (c == -1) |
308 | ea2384d3 | bellard | break;
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309 | ea2384d3 | bellard | switch(c) {
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310 | ea2384d3 | bellard | case 'h': |
311 | ea2384d3 | bellard | help(); |
312 | ea2384d3 | bellard | break;
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313 | ea2384d3 | bellard | case 'f': |
314 | ea2384d3 | bellard | fmt = optarg; |
315 | ea2384d3 | bellard | break;
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316 | ea2384d3 | bellard | } |
317 | ea2384d3 | bellard | } |
318 | 5fafdf24 | ths | if (optind >= argc)
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319 | ea2384d3 | bellard | help(); |
320 | ea2384d3 | bellard | filename = argv[optind++]; |
321 | ea2384d3 | bellard | |
322 | ea2384d3 | bellard | bs = bdrv_new("");
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323 | ea2384d3 | bellard | if (!bs)
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324 | ea2384d3 | bellard | error("Not enough memory");
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325 | ea2384d3 | bellard | if (fmt) {
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326 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
327 | ea2384d3 | bellard | if (!drv)
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328 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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329 | ea2384d3 | bellard | } else {
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330 | ea2384d3 | bellard | drv = NULL;
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331 | ea2384d3 | bellard | } |
332 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
333 | ea2384d3 | bellard | error("Could not open '%s'", filename);
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334 | ea2384d3 | bellard | } |
335 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
336 | ea2384d3 | bellard | switch(ret) {
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337 | ea2384d3 | bellard | case 0: |
338 | ea2384d3 | bellard | printf("Image committed.\n");
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339 | ea2384d3 | bellard | break;
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340 | ea2384d3 | bellard | case -ENOENT:
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341 | ea2384d3 | bellard | error("No disk inserted");
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342 | ea2384d3 | bellard | break;
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343 | ea2384d3 | bellard | case -EACCES:
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344 | ea2384d3 | bellard | error("Image is read-only");
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345 | ea2384d3 | bellard | break;
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346 | ea2384d3 | bellard | case -ENOTSUP:
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347 | ea2384d3 | bellard | error("Image is already committed");
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348 | ea2384d3 | bellard | break;
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349 | ea2384d3 | bellard | default:
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350 | ea2384d3 | bellard | error("Error while committing image");
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351 | ea2384d3 | bellard | break;
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352 | ea2384d3 | bellard | } |
353 | ea2384d3 | bellard | |
354 | ea2384d3 | bellard | bdrv_delete(bs); |
355 | ea2384d3 | bellard | return 0; |
356 | ea2384d3 | bellard | } |
357 | ea2384d3 | bellard | |
358 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
359 | ea2384d3 | bellard | { |
360 | ea2384d3 | bellard | int i;
|
361 | ea2384d3 | bellard | len >>= 2;
|
362 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
363 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
364 | ea2384d3 | bellard | return 1; |
365 | ea2384d3 | bellard | } |
366 | ea2384d3 | bellard | return 0; |
367 | ea2384d3 | bellard | } |
368 | ea2384d3 | bellard | |
369 | f58c7b35 | ths | /*
|
370 | f58c7b35 | ths | * Returns true iff the first sector pointed to by 'buf' contains at least
|
371 | f58c7b35 | ths | * a non-NUL byte.
|
372 | f58c7b35 | ths | *
|
373 | f58c7b35 | ths | * 'pnum' is set to the number of sectors (including and immediately following
|
374 | f58c7b35 | ths | * the first one) that are known to be in the same allocated/unallocated state.
|
375 | f58c7b35 | ths | */
|
376 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
377 | ea2384d3 | bellard | { |
378 | ea2384d3 | bellard | int v, i;
|
379 | ea2384d3 | bellard | |
380 | ea2384d3 | bellard | if (n <= 0) { |
381 | ea2384d3 | bellard | *pnum = 0;
|
382 | ea2384d3 | bellard | return 0; |
383 | ea2384d3 | bellard | } |
384 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
|
385 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
386 | ea2384d3 | bellard | buf += 512;
|
387 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
388 | ea2384d3 | bellard | break;
|
389 | ea2384d3 | bellard | } |
390 | ea2384d3 | bellard | *pnum = i; |
391 | ea2384d3 | bellard | return v;
|
392 | ea2384d3 | bellard | } |
393 | ea2384d3 | bellard | |
394 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
395 | ea2384d3 | bellard | |
396 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
397 | ea2384d3 | bellard | { |
398 | 926c2d23 | balrog | int c, ret, n, n1, bs_n, bs_i, flags, cluster_size, cluster_sectors;
|
399 | f58c7b35 | ths | const char *fmt, *out_fmt, *out_baseimg, *out_filename; |
400 | ea2384d3 | bellard | BlockDriver *drv; |
401 | 926c2d23 | balrog | BlockDriverState **bs, *out_bs; |
402 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
403 | 96b8f136 | ths | uint64_t bs_sectors; |
404 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
405 | ea2384d3 | bellard | const uint8_t *buf1;
|
406 | faea38e7 | bellard | BlockDriverInfo bdi; |
407 | ea2384d3 | bellard | |
408 | ea2384d3 | bellard | fmt = NULL;
|
409 | ea2384d3 | bellard | out_fmt = "raw";
|
410 | f58c7b35 | ths | out_baseimg = NULL;
|
411 | ec36ba14 | ths | flags = 0;
|
412 | ea2384d3 | bellard | for(;;) {
|
413 | f58c7b35 | ths | c = getopt(argc, argv, "f:O:B:hce6");
|
414 | ea2384d3 | bellard | if (c == -1) |
415 | ea2384d3 | bellard | break;
|
416 | ea2384d3 | bellard | switch(c) {
|
417 | ea2384d3 | bellard | case 'h': |
418 | ea2384d3 | bellard | help(); |
419 | ea2384d3 | bellard | break;
|
420 | ea2384d3 | bellard | case 'f': |
421 | ea2384d3 | bellard | fmt = optarg; |
422 | ea2384d3 | bellard | break;
|
423 | ea2384d3 | bellard | case 'O': |
424 | ea2384d3 | bellard | out_fmt = optarg; |
425 | ea2384d3 | bellard | break;
|
426 | f58c7b35 | ths | case 'B': |
427 | f58c7b35 | ths | out_baseimg = optarg; |
428 | f58c7b35 | ths | break;
|
429 | ea2384d3 | bellard | case 'c': |
430 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPRESS; |
431 | ea2384d3 | bellard | break;
|
432 | ea2384d3 | bellard | case 'e': |
433 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
434 | ec36ba14 | ths | break;
|
435 | ec36ba14 | ths | case '6': |
436 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
437 | ea2384d3 | bellard | break;
|
438 | ea2384d3 | bellard | } |
439 | ea2384d3 | bellard | } |
440 | 3b46e624 | ths | |
441 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
442 | 926c2d23 | balrog | if (bs_n < 1) help(); |
443 | 926c2d23 | balrog | |
444 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
445 | f58c7b35 | ths | |
446 | f58c7b35 | ths | if (bs_n > 1 && out_baseimg) |
447 | f58c7b35 | ths | error("-B makes no sense when concatenating multiple input images");
|
448 | 926c2d23 | balrog | |
449 | 926c2d23 | balrog | bs = calloc(bs_n, sizeof(BlockDriverState *));
|
450 | 926c2d23 | balrog | if (!bs)
|
451 | 926c2d23 | balrog | error("Out of memory");
|
452 | 926c2d23 | balrog | |
453 | 926c2d23 | balrog | total_sectors = 0;
|
454 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
455 | 926c2d23 | balrog | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt); |
456 | 926c2d23 | balrog | if (!bs[bs_i])
|
457 | 926c2d23 | balrog | error("Could not open '%s'", argv[optind + bs_i]);
|
458 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
459 | 926c2d23 | balrog | total_sectors += bs_sectors; |
460 | 926c2d23 | balrog | } |
461 | ea2384d3 | bellard | |
462 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
463 | ea2384d3 | bellard | if (!drv)
|
464 | d34dda5e | ths | error("Unknown file format '%s'", out_fmt);
|
465 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
466 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
467 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
468 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
469 | d8871c5a | ths | if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk)
|
470 | ec36ba14 | ths | error("Alternative compatibility level not supported for this file format");
|
471 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
|
472 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
473 | 926c2d23 | balrog | |
474 | f58c7b35 | ths | ret = bdrv_create(drv, out_filename, total_sectors, out_baseimg, flags); |
475 | ea2384d3 | bellard | if (ret < 0) { |
476 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
477 | 3c56521b | bellard | error("Formatting not supported for file format '%s'", fmt);
|
478 | ea2384d3 | bellard | } else {
|
479 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
480 | ea2384d3 | bellard | } |
481 | ea2384d3 | bellard | } |
482 | 3b46e624 | ths | |
483 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
484 | ea2384d3 | bellard | |
485 | 926c2d23 | balrog | bs_i = 0;
|
486 | 926c2d23 | balrog | bs_offset = 0;
|
487 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
488 | 926c2d23 | balrog | |
489 | 926c2d23 | balrog | if (flags & BLOCK_FLAG_COMPRESS) {
|
490 | faea38e7 | bellard | if (bdrv_get_info(out_bs, &bdi) < 0) |
491 | faea38e7 | bellard | error("could not get block driver info");
|
492 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
493 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
494 | ea2384d3 | bellard | error("invalid cluster size");
|
495 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
496 | ea2384d3 | bellard | sector_num = 0;
|
497 | ea2384d3 | bellard | for(;;) {
|
498 | 926c2d23 | balrog | int64_t bs_num; |
499 | 926c2d23 | balrog | int remainder;
|
500 | 926c2d23 | balrog | uint8_t *buf2; |
501 | 926c2d23 | balrog | |
502 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
503 | ea2384d3 | bellard | if (nb_sectors <= 0) |
504 | ea2384d3 | bellard | break;
|
505 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
506 | ea2384d3 | bellard | n = cluster_sectors; |
507 | ea2384d3 | bellard | else
|
508 | ea2384d3 | bellard | n = nb_sectors; |
509 | 926c2d23 | balrog | |
510 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
511 | 926c2d23 | balrog | assert (bs_num >= 0);
|
512 | 926c2d23 | balrog | remainder = n; |
513 | 926c2d23 | balrog | buf2 = buf; |
514 | 926c2d23 | balrog | while (remainder > 0) { |
515 | 926c2d23 | balrog | int nlow;
|
516 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
517 | 926c2d23 | balrog | bs_i++; |
518 | 926c2d23 | balrog | assert (bs_i < bs_n); |
519 | 926c2d23 | balrog | bs_offset += bs_sectors; |
520 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
521 | 926c2d23 | balrog | bs_num = 0;
|
522 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, "
|
523 | 926c2d23 | balrog | "bs_i=%d, bs_offset=%lld, bs_sectors=%lld\n",
|
524 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
525 | 926c2d23 | balrog | } |
526 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
527 | 926c2d23 | balrog | |
528 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
529 | 926c2d23 | balrog | |
530 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], bs_num, buf2, nlow) < 0) |
531 | 926c2d23 | balrog | error("error while reading");
|
532 | 926c2d23 | balrog | |
533 | 926c2d23 | balrog | buf2 += nlow * 512;
|
534 | 926c2d23 | balrog | bs_num += nlow; |
535 | 926c2d23 | balrog | |
536 | 926c2d23 | balrog | remainder -= nlow; |
537 | 926c2d23 | balrog | } |
538 | 926c2d23 | balrog | assert (remainder == 0);
|
539 | 926c2d23 | balrog | |
540 | ea2384d3 | bellard | if (n < cluster_sectors)
|
541 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
542 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
543 | 5fafdf24 | ths | if (bdrv_write_compressed(out_bs, sector_num, buf,
|
544 | faea38e7 | bellard | cluster_sectors) != 0)
|
545 | ec3757de | bellard | error("error while compressing sector %" PRId64,
|
546 | ec3757de | bellard | sector_num); |
547 | ea2384d3 | bellard | } |
548 | ea2384d3 | bellard | sector_num += n; |
549 | ea2384d3 | bellard | } |
550 | faea38e7 | bellard | /* signal EOF to align */
|
551 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
552 | ea2384d3 | bellard | } else {
|
553 | f58c7b35 | ths | sector_num = 0; // total number of sectors converted so far |
554 | ea2384d3 | bellard | for(;;) {
|
555 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
556 | ea2384d3 | bellard | if (nb_sectors <= 0) |
557 | ea2384d3 | bellard | break;
|
558 | ea2384d3 | bellard | if (nb_sectors >= (IO_BUF_SIZE / 512)) |
559 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
560 | ea2384d3 | bellard | else
|
561 | ea2384d3 | bellard | n = nb_sectors; |
562 | 926c2d23 | balrog | |
563 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
564 | 926c2d23 | balrog | bs_i ++; |
565 | 926c2d23 | balrog | assert (bs_i < bs_n); |
566 | 926c2d23 | balrog | bs_offset += bs_sectors; |
567 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
568 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, bs_i=%d, "
|
569 | 926c2d23 | balrog | "bs_offset=%lld, bs_sectors=%lld\n",
|
570 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
571 | 926c2d23 | balrog | } |
572 | 926c2d23 | balrog | |
573 | 926c2d23 | balrog | if (n > bs_offset + bs_sectors - sector_num)
|
574 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
575 | 926c2d23 | balrog | |
576 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
577 | f58c7b35 | ths | assume that sectors which are unallocated in the input image
|
578 | f58c7b35 | ths | are present in both the output's and input's base images (no
|
579 | f58c7b35 | ths | need to copy them). */
|
580 | f58c7b35 | ths | if (out_baseimg) {
|
581 | f58c7b35 | ths | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset, n, &n1)) {
|
582 | f58c7b35 | ths | sector_num += n1; |
583 | f58c7b35 | ths | continue;
|
584 | f58c7b35 | ths | } |
585 | f58c7b35 | ths | /* The next 'n1' sectors are allocated in the input image. Copy
|
586 | f58c7b35 | ths | only those as they may be followed by unallocated sectors. */
|
587 | f58c7b35 | ths | n = n1; |
588 | f58c7b35 | ths | } |
589 | f58c7b35 | ths | |
590 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n) < 0) |
591 | ea2384d3 | bellard | error("error while reading");
|
592 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
593 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
594 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
595 | ea2384d3 | bellard | buf1 = buf; |
596 | ea2384d3 | bellard | while (n > 0) { |
597 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
598 | f58c7b35 | ths | copy all sectors even the ones containing only NUL bytes,
|
599 | f58c7b35 | ths | because they may differ from the sectors in the base image. */
|
600 | f58c7b35 | ths | if (out_baseimg || is_allocated_sectors(buf1, n, &n1)) {
|
601 | 5fafdf24 | ths | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
602 | ea2384d3 | bellard | error("error while writing");
|
603 | ea2384d3 | bellard | } |
604 | ea2384d3 | bellard | sector_num += n1; |
605 | ea2384d3 | bellard | n -= n1; |
606 | ea2384d3 | bellard | buf1 += n1 * 512;
|
607 | ea2384d3 | bellard | } |
608 | ea2384d3 | bellard | } |
609 | ea2384d3 | bellard | } |
610 | ea2384d3 | bellard | bdrv_delete(out_bs); |
611 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) |
612 | 926c2d23 | balrog | bdrv_delete(bs[bs_i]); |
613 | 926c2d23 | balrog | free(bs); |
614 | ea2384d3 | bellard | return 0; |
615 | ea2384d3 | bellard | } |
616 | ea2384d3 | bellard | |
617 | 57d1a2b6 | bellard | #ifdef _WIN32
|
618 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
619 | 57d1a2b6 | bellard | { |
620 | e8445331 | bellard | typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); |
621 | e8445331 | bellard | get_compressed_t get_compressed; |
622 | 57d1a2b6 | bellard | struct _stati64 st;
|
623 | e8445331 | bellard | |
624 | e8445331 | bellard | /* WinNT support GetCompressedFileSize to determine allocate size */
|
625 | e8445331 | bellard | get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); |
626 | e8445331 | bellard | if (get_compressed) {
|
627 | e8445331 | bellard | DWORD high, low; |
628 | e8445331 | bellard | low = get_compressed(filename, &high); |
629 | e8445331 | bellard | if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) |
630 | e8445331 | bellard | return (((int64_t) high) << 32) + low; |
631 | e8445331 | bellard | } |
632 | e8445331 | bellard | |
633 | 5fafdf24 | ths | if (_stati64(filename, &st) < 0) |
634 | 57d1a2b6 | bellard | return -1; |
635 | 57d1a2b6 | bellard | return st.st_size;
|
636 | 57d1a2b6 | bellard | } |
637 | 57d1a2b6 | bellard | #else
|
638 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
639 | 57d1a2b6 | bellard | { |
640 | 57d1a2b6 | bellard | struct stat st;
|
641 | 5fafdf24 | ths | if (stat(filename, &st) < 0) |
642 | 57d1a2b6 | bellard | return -1; |
643 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
644 | 57d1a2b6 | bellard | } |
645 | 57d1a2b6 | bellard | #endif
|
646 | 57d1a2b6 | bellard | |
647 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
648 | faea38e7 | bellard | { |
649 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
650 | faea38e7 | bellard | int nb_sns, i;
|
651 | faea38e7 | bellard | char buf[256]; |
652 | faea38e7 | bellard | |
653 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
654 | faea38e7 | bellard | if (nb_sns <= 0) |
655 | faea38e7 | bellard | return;
|
656 | faea38e7 | bellard | printf("Snapshot list:\n");
|
657 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
658 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
659 | faea38e7 | bellard | sn = &sn_tab[i]; |
660 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
661 | faea38e7 | bellard | } |
662 | faea38e7 | bellard | qemu_free(sn_tab); |
663 | faea38e7 | bellard | } |
664 | faea38e7 | bellard | |
665 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
666 | ea2384d3 | bellard | { |
667 | ea2384d3 | bellard | int c;
|
668 | ea2384d3 | bellard | const char *filename, *fmt; |
669 | ea2384d3 | bellard | BlockDriver *drv; |
670 | ea2384d3 | bellard | BlockDriverState *bs; |
671 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
672 | 96b8f136 | ths | uint64_t total_sectors; |
673 | 96b8f136 | ths | int64_t allocated_size; |
674 | 93b6b2a3 | bellard | char backing_filename[1024]; |
675 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
676 | faea38e7 | bellard | BlockDriverInfo bdi; |
677 | ea2384d3 | bellard | |
678 | ea2384d3 | bellard | fmt = NULL;
|
679 | ea2384d3 | bellard | for(;;) {
|
680 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
681 | ea2384d3 | bellard | if (c == -1) |
682 | ea2384d3 | bellard | break;
|
683 | ea2384d3 | bellard | switch(c) {
|
684 | ea2384d3 | bellard | case 'h': |
685 | ea2384d3 | bellard | help(); |
686 | ea2384d3 | bellard | break;
|
687 | ea2384d3 | bellard | case 'f': |
688 | ea2384d3 | bellard | fmt = optarg; |
689 | ea2384d3 | bellard | break;
|
690 | ea2384d3 | bellard | } |
691 | ea2384d3 | bellard | } |
692 | 5fafdf24 | ths | if (optind >= argc)
|
693 | ea2384d3 | bellard | help(); |
694 | ea2384d3 | bellard | filename = argv[optind++]; |
695 | ea2384d3 | bellard | |
696 | ea2384d3 | bellard | bs = bdrv_new("");
|
697 | ea2384d3 | bellard | if (!bs)
|
698 | ea2384d3 | bellard | error("Not enough memory");
|
699 | ea2384d3 | bellard | if (fmt) {
|
700 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
701 | ea2384d3 | bellard | if (!drv)
|
702 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
703 | ea2384d3 | bellard | } else {
|
704 | ea2384d3 | bellard | drv = NULL;
|
705 | ea2384d3 | bellard | } |
706 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
707 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
708 | ea2384d3 | bellard | } |
709 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
710 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
711 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
712 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
713 | 57d1a2b6 | bellard | if (allocated_size < 0) |
714 | a10ea30b | blueswir1 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
715 | de167e41 | bellard | else
|
716 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
717 | de167e41 | bellard | allocated_size); |
718 | ea2384d3 | bellard | printf("image: %s\n"
|
719 | ea2384d3 | bellard | "file format: %s\n"
|
720 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
721 | ea2384d3 | bellard | "disk size: %s\n",
|
722 | 5fafdf24 | ths | filename, fmt_name, size_buf, |
723 | ec3757de | bellard | (total_sectors * 512),
|
724 | ea2384d3 | bellard | dsize_buf); |
725 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
726 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
727 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
728 | 5fafdf24 | ths | if (bdi.cluster_size != 0) |
729 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
730 | faea38e7 | bellard | } |
731 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
732 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
733 | 93b6b2a3 | bellard | path_combine(backing_filename2, sizeof(backing_filename2),
|
734 | 93b6b2a3 | bellard | filename, backing_filename); |
735 | 5fafdf24 | ths | printf("backing file: %s (actual path: %s)\n",
|
736 | 93b6b2a3 | bellard | backing_filename, |
737 | 93b6b2a3 | bellard | backing_filename2); |
738 | faea38e7 | bellard | } |
739 | faea38e7 | bellard | dump_snapshots(bs); |
740 | ea2384d3 | bellard | bdrv_delete(bs); |
741 | ea2384d3 | bellard | return 0; |
742 | ea2384d3 | bellard | } |
743 | ea2384d3 | bellard | |
744 | f7b4a940 | aliguori | #define SNAPSHOT_LIST 1 |
745 | f7b4a940 | aliguori | #define SNAPSHOT_CREATE 2 |
746 | f7b4a940 | aliguori | #define SNAPSHOT_APPLY 3 |
747 | f7b4a940 | aliguori | #define SNAPSHOT_DELETE 4 |
748 | f7b4a940 | aliguori | |
749 | f7b4a940 | aliguori | static void img_snapshot(int argc, char **argv) |
750 | f7b4a940 | aliguori | { |
751 | f7b4a940 | aliguori | BlockDriverState *bs; |
752 | f7b4a940 | aliguori | QEMUSnapshotInfo sn; |
753 | f7b4a940 | aliguori | char *filename, *snapshot_name = NULL; |
754 | 40a4539e | aliguori | int c, ret;
|
755 | f7b4a940 | aliguori | int action = 0; |
756 | f7b4a940 | aliguori | qemu_timeval tv; |
757 | f7b4a940 | aliguori | |
758 | f7b4a940 | aliguori | /* Parse commandline parameters */
|
759 | f7b4a940 | aliguori | for(;;) {
|
760 | f7b4a940 | aliguori | c = getopt(argc, argv, "la:c:d:h");
|
761 | f7b4a940 | aliguori | if (c == -1) |
762 | f7b4a940 | aliguori | break;
|
763 | f7b4a940 | aliguori | switch(c) {
|
764 | f7b4a940 | aliguori | case 'h': |
765 | f7b4a940 | aliguori | help(); |
766 | f7b4a940 | aliguori | return;
|
767 | f7b4a940 | aliguori | case 'l': |
768 | f7b4a940 | aliguori | if (action) {
|
769 | f7b4a940 | aliguori | help(); |
770 | f7b4a940 | aliguori | return;
|
771 | f7b4a940 | aliguori | } |
772 | f7b4a940 | aliguori | action = SNAPSHOT_LIST; |
773 | f7b4a940 | aliguori | break;
|
774 | f7b4a940 | aliguori | case 'a': |
775 | f7b4a940 | aliguori | if (action) {
|
776 | f7b4a940 | aliguori | help(); |
777 | f7b4a940 | aliguori | return;
|
778 | f7b4a940 | aliguori | } |
779 | f7b4a940 | aliguori | action = SNAPSHOT_APPLY; |
780 | f7b4a940 | aliguori | snapshot_name = optarg; |
781 | f7b4a940 | aliguori | break;
|
782 | f7b4a940 | aliguori | case 'c': |
783 | f7b4a940 | aliguori | if (action) {
|
784 | f7b4a940 | aliguori | help(); |
785 | f7b4a940 | aliguori | return;
|
786 | f7b4a940 | aliguori | } |
787 | f7b4a940 | aliguori | action = SNAPSHOT_CREATE; |
788 | f7b4a940 | aliguori | snapshot_name = optarg; |
789 | f7b4a940 | aliguori | break;
|
790 | f7b4a940 | aliguori | case 'd': |
791 | f7b4a940 | aliguori | if (action) {
|
792 | f7b4a940 | aliguori | help(); |
793 | f7b4a940 | aliguori | return;
|
794 | f7b4a940 | aliguori | } |
795 | f7b4a940 | aliguori | action = SNAPSHOT_DELETE; |
796 | f7b4a940 | aliguori | snapshot_name = optarg; |
797 | f7b4a940 | aliguori | break;
|
798 | f7b4a940 | aliguori | } |
799 | f7b4a940 | aliguori | } |
800 | f7b4a940 | aliguori | |
801 | f7b4a940 | aliguori | if (optind >= argc)
|
802 | f7b4a940 | aliguori | help(); |
803 | f7b4a940 | aliguori | filename = argv[optind++]; |
804 | f7b4a940 | aliguori | |
805 | f7b4a940 | aliguori | /* Open the image */
|
806 | f7b4a940 | aliguori | bs = bdrv_new("");
|
807 | f7b4a940 | aliguori | if (!bs)
|
808 | f7b4a940 | aliguori | error("Not enough memory");
|
809 | f7b4a940 | aliguori | |
810 | f7b4a940 | aliguori | if (bdrv_open2(bs, filename, 0, NULL) < 0) { |
811 | f7b4a940 | aliguori | error("Could not open '%s'", filename);
|
812 | f7b4a940 | aliguori | } |
813 | f7b4a940 | aliguori | |
814 | f7b4a940 | aliguori | /* Perform the requested action */
|
815 | f7b4a940 | aliguori | switch(action) {
|
816 | f7b4a940 | aliguori | case SNAPSHOT_LIST:
|
817 | f7b4a940 | aliguori | dump_snapshots(bs); |
818 | f7b4a940 | aliguori | break;
|
819 | f7b4a940 | aliguori | |
820 | f7b4a940 | aliguori | case SNAPSHOT_CREATE:
|
821 | f7b4a940 | aliguori | memset(&sn, 0, sizeof(sn)); |
822 | f7b4a940 | aliguori | pstrcpy(sn.name, sizeof(sn.name), snapshot_name);
|
823 | f7b4a940 | aliguori | |
824 | f7b4a940 | aliguori | qemu_gettimeofday(&tv); |
825 | f7b4a940 | aliguori | sn.date_sec = tv.tv_sec; |
826 | f7b4a940 | aliguori | sn.date_nsec = tv.tv_usec * 1000;
|
827 | f7b4a940 | aliguori | |
828 | f7b4a940 | aliguori | ret = bdrv_snapshot_create(bs, &sn); |
829 | f7b4a940 | aliguori | if (ret)
|
830 | f7b4a940 | aliguori | error("Could not create snapshot '%s': %d (%s)",
|
831 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
832 | f7b4a940 | aliguori | break;
|
833 | f7b4a940 | aliguori | |
834 | f7b4a940 | aliguori | case SNAPSHOT_APPLY:
|
835 | f7b4a940 | aliguori | ret = bdrv_snapshot_goto(bs, snapshot_name); |
836 | f7b4a940 | aliguori | if (ret)
|
837 | f7b4a940 | aliguori | error("Could not apply snapshot '%s': %d (%s)",
|
838 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
839 | f7b4a940 | aliguori | break;
|
840 | f7b4a940 | aliguori | |
841 | f7b4a940 | aliguori | case SNAPSHOT_DELETE:
|
842 | f7b4a940 | aliguori | ret = bdrv_snapshot_delete(bs, snapshot_name); |
843 | f7b4a940 | aliguori | if (ret)
|
844 | f7b4a940 | aliguori | error("Could not delete snapshot '%s': %d (%s)",
|
845 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
846 | f7b4a940 | aliguori | break;
|
847 | f7b4a940 | aliguori | } |
848 | f7b4a940 | aliguori | |
849 | f7b4a940 | aliguori | /* Cleanup */
|
850 | f7b4a940 | aliguori | bdrv_delete(bs); |
851 | f7b4a940 | aliguori | } |
852 | f7b4a940 | aliguori | |
853 | ea2384d3 | bellard | int main(int argc, char **argv) |
854 | ea2384d3 | bellard | { |
855 | ea2384d3 | bellard | const char *cmd; |
856 | ea2384d3 | bellard | |
857 | ea2384d3 | bellard | bdrv_init(); |
858 | ea2384d3 | bellard | if (argc < 2) |
859 | ea2384d3 | bellard | help(); |
860 | ea2384d3 | bellard | cmd = argv[1];
|
861 | e3888186 | bellard | optind++; |
862 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
863 | ea2384d3 | bellard | img_create(argc, argv); |
864 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
865 | ea2384d3 | bellard | img_commit(argc, argv); |
866 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
867 | ea2384d3 | bellard | img_convert(argc, argv); |
868 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
869 | ea2384d3 | bellard | img_info(argc, argv); |
870 | f7b4a940 | aliguori | } else if (!strcmp(cmd, "snapshot")) { |
871 | f7b4a940 | aliguori | img_snapshot(argc, argv); |
872 | ea2384d3 | bellard | } else {
|
873 | ea2384d3 | bellard | help(); |
874 | ea2384d3 | bellard | } |
875 | ea2384d3 | bellard | return 0; |
876 | ea2384d3 | bellard | } |