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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 | 9230eaf6 | aliguori | #include <stdio.h> |
29 | ea2384d3 | bellard | |
30 | e8445331 | bellard | #ifdef _WIN32
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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 | 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: ");
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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 | d2c639d6 | blueswir1 | /* Please keep in synch with qemu-img.texi */
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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"
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58 | ea2384d3 | bellard | "QEMU disk image utility\n"
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59 | ea2384d3 | bellard | "\n"
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60 | ea2384d3 | bellard | "Command syntax:\n"
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61 | 1585969c | aliguori | " check [-f fmt] filename\n"
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62 | 9230eaf6 | aliguori | " create [-e] [-6] [-F fmt] [-b base_image] [-f fmt] filename [size]\n"
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63 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
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64 | f58c7b35 | ths | " convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] [-B output_base_image] filename [filename2 [...]] output_filename\n"
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65 | ea2384d3 | bellard | " info [-f fmt] filename\n"
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66 | d2c639d6 | blueswir1 | " snapshot [-l | -a snapshot | -c snapshot | -d snapshot] filename\n"
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67 | ea2384d3 | bellard | "\n"
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68 | ea2384d3 | bellard | "Command parameters:\n"
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69 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
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70 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
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71 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
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72 | f58c7b35 | ths | " 'output_base_image' forces the output image to be created as a copy on write\n"
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73 | f58c7b35 | ths | " image of the specified base image; 'output_base_image' should have the same\n"
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74 | f58c7b35 | ths | " content as the input's base image, however the path, image format, etc may\n"
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75 | f58c7b35 | ths | " differ\n"
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76 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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77 | d2c639d6 | blueswir1 | " 'size' is the disk image size in kilobytes. Optional suffixes\n"
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78 | 2fbc4095 | aurel32 | " 'M' (megabyte, 1024 * 1024) and 'G' (gigabyte, 1024 * 1024 * 1024) are\n"
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79 | 2fbc4095 | aurel32 | " supported any 'k' or 'K' is ignored\n"
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80 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
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81 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
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82 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
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83 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
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84 | ec36ba14 | ths | " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
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85 | d2c639d6 | blueswir1 | " '-h' with or without a command shows this help and lists the supported formats\n"
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86 | f7b4a940 | aliguori | "\n"
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87 | d2c639d6 | blueswir1 | "Parameters to snapshot subcommand:\n"
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88 | d2c639d6 | blueswir1 | " 'snapshot' is the name of the snapshot to create, apply or delete\n"
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89 | d2c639d6 | blueswir1 | " '-a' applies a snapshot (revert disk to saved state)\n"
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90 | d2c639d6 | blueswir1 | " '-c' creates a snapshot\n"
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91 | d2c639d6 | blueswir1 | " '-d' deletes a snapshot\n"
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92 | d2c639d6 | blueswir1 | " '-l' lists all snapshots in the given image\n"
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93 | ea2384d3 | bellard | ); |
94 | d2c639d6 | blueswir1 | printf("\nSupported formats:");
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95 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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96 | ea2384d3 | bellard | printf("\n");
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97 | ea2384d3 | bellard | exit(1);
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98 | ea2384d3 | bellard | } |
99 | ea2384d3 | bellard | |
100 | ea2384d3 | bellard | #if defined(WIN32)
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101 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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102 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
103 | ea2384d3 | bellard | { |
104 | ea2384d3 | bellard | int c, i;
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105 | ea2384d3 | bellard | printf("Password: ");
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106 | ea2384d3 | bellard | fflush(stdout); |
107 | ea2384d3 | bellard | i = 0;
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108 | ea2384d3 | bellard | for(;;) {
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109 | ea2384d3 | bellard | c = getchar(); |
110 | ea2384d3 | bellard | if (c == '\n') |
111 | ea2384d3 | bellard | break;
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112 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
113 | ea2384d3 | bellard | buf[i++] = c; |
114 | ea2384d3 | bellard | } |
115 | ea2384d3 | bellard | buf[i] = '\0';
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116 | ea2384d3 | bellard | return 0; |
117 | ea2384d3 | bellard | } |
118 | ea2384d3 | bellard | |
119 | ea2384d3 | bellard | #else
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120 | ea2384d3 | bellard | |
121 | ea2384d3 | bellard | #include <termios.h> |
122 | ea2384d3 | bellard | |
123 | ea2384d3 | bellard | static struct termios oldtty; |
124 | ea2384d3 | bellard | |
125 | ea2384d3 | bellard | static void term_exit(void) |
126 | ea2384d3 | bellard | { |
127 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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128 | ea2384d3 | bellard | } |
129 | ea2384d3 | bellard | |
130 | ea2384d3 | bellard | static void term_init(void) |
131 | ea2384d3 | bellard | { |
132 | ea2384d3 | bellard | struct termios tty;
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133 | ea2384d3 | bellard | |
134 | ea2384d3 | bellard | tcgetattr (0, &tty);
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135 | ea2384d3 | bellard | oldtty = tty; |
136 | ea2384d3 | bellard | |
137 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
138 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
139 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
140 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
141 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
142 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
143 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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144 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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145 | 3b46e624 | ths | |
146 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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147 | ea2384d3 | bellard | |
148 | ea2384d3 | bellard | atexit(term_exit); |
149 | ea2384d3 | bellard | } |
150 | ea2384d3 | bellard | |
151 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
152 | ea2384d3 | bellard | { |
153 | ea2384d3 | bellard | uint8_t ch; |
154 | ea2384d3 | bellard | int i, ret;
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155 | ea2384d3 | bellard | |
156 | ea2384d3 | bellard | printf("password: ");
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157 | ea2384d3 | bellard | fflush(stdout); |
158 | ea2384d3 | bellard | term_init(); |
159 | ea2384d3 | bellard | i = 0;
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160 | ea2384d3 | bellard | for(;;) {
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161 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
162 | ea2384d3 | bellard | if (ret == -1) { |
163 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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164 | ea2384d3 | bellard | continue;
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165 | ea2384d3 | bellard | } else {
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166 | ea2384d3 | bellard | ret = -1;
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167 | ea2384d3 | bellard | break;
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168 | ea2384d3 | bellard | } |
169 | ea2384d3 | bellard | } else if (ret == 0) { |
170 | ea2384d3 | bellard | ret = -1;
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171 | ea2384d3 | bellard | break;
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172 | ea2384d3 | bellard | } else {
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173 | ea2384d3 | bellard | if (ch == '\r') { |
174 | ea2384d3 | bellard | ret = 0;
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175 | ea2384d3 | bellard | break;
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176 | ea2384d3 | bellard | } |
177 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
178 | ea2384d3 | bellard | buf[i++] = ch; |
179 | ea2384d3 | bellard | } |
180 | ea2384d3 | bellard | } |
181 | ea2384d3 | bellard | term_exit(); |
182 | ea2384d3 | bellard | buf[i] = '\0';
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183 | ea2384d3 | bellard | printf("\n");
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184 | ea2384d3 | bellard | return ret;
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185 | ea2384d3 | bellard | } |
186 | ea2384d3 | bellard | #endif
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187 | ea2384d3 | bellard | |
188 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
189 | 75c23805 | bellard | const char *fmt) |
190 | 75c23805 | bellard | { |
191 | 75c23805 | bellard | BlockDriverState *bs; |
192 | 75c23805 | bellard | BlockDriver *drv; |
193 | 75c23805 | bellard | char password[256]; |
194 | 75c23805 | bellard | |
195 | 75c23805 | bellard | bs = bdrv_new("");
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196 | 75c23805 | bellard | if (!bs)
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197 | 75c23805 | bellard | error("Not enough memory");
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198 | 75c23805 | bellard | if (fmt) {
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199 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
200 | 75c23805 | bellard | if (!drv)
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201 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
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202 | 75c23805 | bellard | } else {
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203 | 75c23805 | bellard | drv = NULL;
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204 | 75c23805 | bellard | } |
205 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
206 | 75c23805 | bellard | error("Could not open '%s'", filename);
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207 | 75c23805 | bellard | } |
208 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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209 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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210 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
211 | 75c23805 | bellard | error("No password given");
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212 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
213 | 75c23805 | bellard | error("invalid password");
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214 | 75c23805 | bellard | } |
215 | 75c23805 | bellard | return bs;
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216 | 75c23805 | bellard | } |
217 | 75c23805 | bellard | |
218 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
219 | ea2384d3 | bellard | { |
220 | ec36ba14 | ths | int c, ret, flags;
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221 | ea2384d3 | bellard | const char *fmt = "raw"; |
222 | 9230eaf6 | aliguori | const char *base_fmt = NULL; |
223 | ea2384d3 | bellard | const char *filename; |
224 | ea2384d3 | bellard | const char *base_filename = NULL; |
225 | 96b8f136 | ths | uint64_t size; |
226 | 24501489 | aurel32 | double sizef;
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227 | ea2384d3 | bellard | const char *p; |
228 | ea2384d3 | bellard | BlockDriver *drv; |
229 | 3b46e624 | ths | |
230 | ec36ba14 | ths | flags = 0;
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231 | ea2384d3 | bellard | for(;;) {
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232 | 9230eaf6 | aliguori | c = getopt(argc, argv, "F:b:f:he6");
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233 | ea2384d3 | bellard | if (c == -1) |
234 | ea2384d3 | bellard | break;
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235 | ea2384d3 | bellard | switch(c) {
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236 | ea2384d3 | bellard | case 'h': |
237 | ea2384d3 | bellard | help(); |
238 | ea2384d3 | bellard | break;
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239 | 9230eaf6 | aliguori | case 'F': |
240 | 9230eaf6 | aliguori | base_fmt = optarg; |
241 | 9230eaf6 | aliguori | break;
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242 | ea2384d3 | bellard | case 'b': |
243 | ea2384d3 | bellard | base_filename = optarg; |
244 | ea2384d3 | bellard | break;
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245 | ea2384d3 | bellard | case 'f': |
246 | ea2384d3 | bellard | fmt = optarg; |
247 | ea2384d3 | bellard | break;
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248 | ea2384d3 | bellard | case 'e': |
249 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
250 | ea2384d3 | bellard | break;
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251 | d8871c5a | ths | case '6': |
252 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
253 | d8871c5a | ths | break;
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254 | ea2384d3 | bellard | } |
255 | ea2384d3 | bellard | } |
256 | 5fafdf24 | ths | if (optind >= argc)
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257 | ea2384d3 | bellard | help(); |
258 | ea2384d3 | bellard | filename = argv[optind++]; |
259 | ea2384d3 | bellard | size = 0;
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260 | 75c23805 | bellard | if (base_filename) {
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261 | e94f3a60 | aliguori | BlockDriverState *bs; |
262 | 9230eaf6 | aliguori | BlockDriver *base_drv = NULL;
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263 | 9230eaf6 | aliguori | |
264 | 9230eaf6 | aliguori | if (base_fmt) {
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265 | 9230eaf6 | aliguori | base_drv = bdrv_find_format(base_fmt); |
266 | 9230eaf6 | aliguori | if (base_drv == NULL) |
267 | 9230eaf6 | aliguori | error("Unknown basefile format '%s'", base_fmt);
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268 | 9230eaf6 | aliguori | } |
269 | 9230eaf6 | aliguori | |
270 | 9230eaf6 | aliguori | bs = bdrv_new_open(base_filename, base_fmt); |
271 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
272 | 75c23805 | bellard | size *= 512;
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273 | 75c23805 | bellard | bdrv_delete(bs); |
274 | 75c23805 | bellard | } else {
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275 | ea2384d3 | bellard | if (optind >= argc)
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276 | ea2384d3 | bellard | help(); |
277 | ea2384d3 | bellard | p = argv[optind]; |
278 | 24501489 | aurel32 | sizef = strtod(p, (char **)&p);
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279 | ea2384d3 | bellard | if (*p == 'M') { |
280 | 24501489 | aurel32 | size = (uint64_t)(sizef * 1024 * 1024); |
281 | ea2384d3 | bellard | } else if (*p == 'G') { |
282 | 24501489 | aurel32 | size = (uint64_t)(sizef * 1024 * 1024 * 1024); |
283 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
284 | 24501489 | aurel32 | size = (uint64_t)(sizef * 1024);
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285 | ea2384d3 | bellard | } else {
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286 | ea2384d3 | bellard | help(); |
287 | ea2384d3 | bellard | } |
288 | ea2384d3 | bellard | } |
289 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
290 | ea2384d3 | bellard | if (!drv)
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291 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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292 | 0cfec834 | ths | printf("Formatting '%s', fmt=%s",
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293 | ea2384d3 | bellard | filename, fmt); |
294 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT)
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295 | ea2384d3 | bellard | printf(", encrypted");
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296 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPAT6)
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297 | ec36ba14 | ths | printf(", compatibility level=6");
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298 | 75c23805 | bellard | if (base_filename) {
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299 | 75c23805 | bellard | printf(", backing_file=%s",
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300 | ea2384d3 | bellard | base_filename); |
301 | 9230eaf6 | aliguori | if (base_fmt)
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302 | 9230eaf6 | aliguori | printf(", backing_fmt=%s",
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303 | 9230eaf6 | aliguori | base_fmt); |
304 | 75c23805 | bellard | } |
305 | 96b8f136 | ths | printf(", size=%" PRIu64 " kB\n", size / 1024); |
306 | 9230eaf6 | aliguori | ret = bdrv_create2(drv, filename, size / 512, base_filename, base_fmt, flags);
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307 | ea2384d3 | bellard | if (ret < 0) { |
308 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
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309 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
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310 | 6e9ea0c0 | aurel32 | } else if (ret == -EFBIG) { |
311 | 6e9ea0c0 | aurel32 | error("The image size is too large for file format '%s'", fmt);
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312 | ea2384d3 | bellard | } else {
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313 | ea2384d3 | bellard | error("Error while formatting");
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314 | ea2384d3 | bellard | } |
315 | ea2384d3 | bellard | } |
316 | ea2384d3 | bellard | return 0; |
317 | ea2384d3 | bellard | } |
318 | ea2384d3 | bellard | |
319 | 1585969c | aliguori | static int img_check(int argc, char **argv) |
320 | 1585969c | aliguori | { |
321 | 1585969c | aliguori | int c, ret;
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322 | 1585969c | aliguori | const char *filename, *fmt; |
323 | 1585969c | aliguori | BlockDriver *drv; |
324 | 1585969c | aliguori | BlockDriverState *bs; |
325 | 1585969c | aliguori | |
326 | 1585969c | aliguori | fmt = NULL;
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327 | 1585969c | aliguori | for(;;) {
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328 | 1585969c | aliguori | c = getopt(argc, argv, "f:h");
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329 | 1585969c | aliguori | if (c == -1) |
330 | 1585969c | aliguori | break;
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331 | 1585969c | aliguori | switch(c) {
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332 | 1585969c | aliguori | case 'h': |
333 | 1585969c | aliguori | help(); |
334 | 1585969c | aliguori | break;
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335 | 1585969c | aliguori | case 'f': |
336 | 1585969c | aliguori | fmt = optarg; |
337 | 1585969c | aliguori | break;
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338 | 1585969c | aliguori | } |
339 | 1585969c | aliguori | } |
340 | 1585969c | aliguori | if (optind >= argc)
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341 | 1585969c | aliguori | help(); |
342 | 1585969c | aliguori | filename = argv[optind++]; |
343 | 1585969c | aliguori | |
344 | 1585969c | aliguori | bs = bdrv_new("");
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345 | 1585969c | aliguori | if (!bs)
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346 | 1585969c | aliguori | error("Not enough memory");
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347 | 1585969c | aliguori | if (fmt) {
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348 | 1585969c | aliguori | drv = bdrv_find_format(fmt); |
349 | 1585969c | aliguori | if (!drv)
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350 | 1585969c | aliguori | error("Unknown file format '%s'", fmt);
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351 | 1585969c | aliguori | } else {
|
352 | 1585969c | aliguori | drv = NULL;
|
353 | 1585969c | aliguori | } |
354 | 1585969c | aliguori | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
355 | 1585969c | aliguori | error("Could not open '%s'", filename);
|
356 | 1585969c | aliguori | } |
357 | 1585969c | aliguori | ret = bdrv_check(bs); |
358 | 1585969c | aliguori | switch(ret) {
|
359 | 1585969c | aliguori | case 0: |
360 | 1585969c | aliguori | printf("No errors were found on the image.\n");
|
361 | 1585969c | aliguori | break;
|
362 | 1585969c | aliguori | case -ENOTSUP:
|
363 | 1585969c | aliguori | error("This image format does not support checks");
|
364 | 1585969c | aliguori | break;
|
365 | 1585969c | aliguori | default:
|
366 | 1585969c | aliguori | if (ret < 0) { |
367 | 1585969c | aliguori | error("An error occurred during the check");
|
368 | 1585969c | aliguori | } else {
|
369 | 1585969c | aliguori | printf("%d errors were found on the image.\n", ret);
|
370 | 1585969c | aliguori | } |
371 | 1585969c | aliguori | break;
|
372 | 1585969c | aliguori | } |
373 | 1585969c | aliguori | |
374 | 1585969c | aliguori | bdrv_delete(bs); |
375 | 1585969c | aliguori | return 0; |
376 | 1585969c | aliguori | } |
377 | 1585969c | aliguori | |
378 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
379 | ea2384d3 | bellard | { |
380 | ea2384d3 | bellard | int c, ret;
|
381 | ea2384d3 | bellard | const char *filename, *fmt; |
382 | ea2384d3 | bellard | BlockDriver *drv; |
383 | ea2384d3 | bellard | BlockDriverState *bs; |
384 | ea2384d3 | bellard | |
385 | ea2384d3 | bellard | fmt = NULL;
|
386 | ea2384d3 | bellard | for(;;) {
|
387 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
388 | ea2384d3 | bellard | if (c == -1) |
389 | ea2384d3 | bellard | break;
|
390 | ea2384d3 | bellard | switch(c) {
|
391 | ea2384d3 | bellard | case 'h': |
392 | ea2384d3 | bellard | help(); |
393 | ea2384d3 | bellard | break;
|
394 | ea2384d3 | bellard | case 'f': |
395 | ea2384d3 | bellard | fmt = optarg; |
396 | ea2384d3 | bellard | break;
|
397 | ea2384d3 | bellard | } |
398 | ea2384d3 | bellard | } |
399 | 5fafdf24 | ths | if (optind >= argc)
|
400 | ea2384d3 | bellard | help(); |
401 | ea2384d3 | bellard | filename = argv[optind++]; |
402 | ea2384d3 | bellard | |
403 | ea2384d3 | bellard | bs = bdrv_new("");
|
404 | ea2384d3 | bellard | if (!bs)
|
405 | ea2384d3 | bellard | error("Not enough memory");
|
406 | ea2384d3 | bellard | if (fmt) {
|
407 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
408 | ea2384d3 | bellard | if (!drv)
|
409 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
410 | ea2384d3 | bellard | } else {
|
411 | ea2384d3 | bellard | drv = NULL;
|
412 | ea2384d3 | bellard | } |
413 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
414 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
415 | ea2384d3 | bellard | } |
416 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
417 | ea2384d3 | bellard | switch(ret) {
|
418 | ea2384d3 | bellard | case 0: |
419 | ea2384d3 | bellard | printf("Image committed.\n");
|
420 | ea2384d3 | bellard | break;
|
421 | ea2384d3 | bellard | case -ENOENT:
|
422 | ea2384d3 | bellard | error("No disk inserted");
|
423 | ea2384d3 | bellard | break;
|
424 | ea2384d3 | bellard | case -EACCES:
|
425 | ea2384d3 | bellard | error("Image is read-only");
|
426 | ea2384d3 | bellard | break;
|
427 | ea2384d3 | bellard | case -ENOTSUP:
|
428 | ea2384d3 | bellard | error("Image is already committed");
|
429 | ea2384d3 | bellard | break;
|
430 | ea2384d3 | bellard | default:
|
431 | ea2384d3 | bellard | error("Error while committing image");
|
432 | ea2384d3 | bellard | break;
|
433 | ea2384d3 | bellard | } |
434 | ea2384d3 | bellard | |
435 | ea2384d3 | bellard | bdrv_delete(bs); |
436 | ea2384d3 | bellard | return 0; |
437 | ea2384d3 | bellard | } |
438 | ea2384d3 | bellard | |
439 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
440 | ea2384d3 | bellard | { |
441 | ea2384d3 | bellard | int i;
|
442 | ea2384d3 | bellard | len >>= 2;
|
443 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
444 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
445 | ea2384d3 | bellard | return 1; |
446 | ea2384d3 | bellard | } |
447 | ea2384d3 | bellard | return 0; |
448 | ea2384d3 | bellard | } |
449 | ea2384d3 | bellard | |
450 | f58c7b35 | ths | /*
|
451 | f58c7b35 | ths | * Returns true iff the first sector pointed to by 'buf' contains at least
|
452 | f58c7b35 | ths | * a non-NUL byte.
|
453 | f58c7b35 | ths | *
|
454 | f58c7b35 | ths | * 'pnum' is set to the number of sectors (including and immediately following
|
455 | f58c7b35 | ths | * the first one) that are known to be in the same allocated/unallocated state.
|
456 | f58c7b35 | ths | */
|
457 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
458 | ea2384d3 | bellard | { |
459 | ea2384d3 | bellard | int v, i;
|
460 | ea2384d3 | bellard | |
461 | ea2384d3 | bellard | if (n <= 0) { |
462 | ea2384d3 | bellard | *pnum = 0;
|
463 | ea2384d3 | bellard | return 0; |
464 | ea2384d3 | bellard | } |
465 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
|
466 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
467 | ea2384d3 | bellard | buf += 512;
|
468 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
469 | ea2384d3 | bellard | break;
|
470 | ea2384d3 | bellard | } |
471 | ea2384d3 | bellard | *pnum = i; |
472 | ea2384d3 | bellard | return v;
|
473 | ea2384d3 | bellard | } |
474 | ea2384d3 | bellard | |
475 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
476 | ea2384d3 | bellard | |
477 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
478 | ea2384d3 | bellard | { |
479 | 926c2d23 | balrog | int c, ret, n, n1, bs_n, bs_i, flags, cluster_size, cluster_sectors;
|
480 | f58c7b35 | ths | const char *fmt, *out_fmt, *out_baseimg, *out_filename; |
481 | ea2384d3 | bellard | BlockDriver *drv; |
482 | 926c2d23 | balrog | BlockDriverState **bs, *out_bs; |
483 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
484 | 96b8f136 | ths | uint64_t bs_sectors; |
485 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
486 | ea2384d3 | bellard | const uint8_t *buf1;
|
487 | faea38e7 | bellard | BlockDriverInfo bdi; |
488 | ea2384d3 | bellard | |
489 | ea2384d3 | bellard | fmt = NULL;
|
490 | ea2384d3 | bellard | out_fmt = "raw";
|
491 | f58c7b35 | ths | out_baseimg = NULL;
|
492 | ec36ba14 | ths | flags = 0;
|
493 | ea2384d3 | bellard | for(;;) {
|
494 | f58c7b35 | ths | c = getopt(argc, argv, "f:O:B:hce6");
|
495 | ea2384d3 | bellard | if (c == -1) |
496 | ea2384d3 | bellard | break;
|
497 | ea2384d3 | bellard | switch(c) {
|
498 | ea2384d3 | bellard | case 'h': |
499 | ea2384d3 | bellard | help(); |
500 | ea2384d3 | bellard | break;
|
501 | ea2384d3 | bellard | case 'f': |
502 | ea2384d3 | bellard | fmt = optarg; |
503 | ea2384d3 | bellard | break;
|
504 | ea2384d3 | bellard | case 'O': |
505 | ea2384d3 | bellard | out_fmt = optarg; |
506 | ea2384d3 | bellard | break;
|
507 | f58c7b35 | ths | case 'B': |
508 | f58c7b35 | ths | out_baseimg = optarg; |
509 | f58c7b35 | ths | break;
|
510 | ea2384d3 | bellard | case 'c': |
511 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPRESS; |
512 | ea2384d3 | bellard | break;
|
513 | ea2384d3 | bellard | case 'e': |
514 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
515 | ec36ba14 | ths | break;
|
516 | ec36ba14 | ths | case '6': |
517 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
518 | ea2384d3 | bellard | break;
|
519 | ea2384d3 | bellard | } |
520 | ea2384d3 | bellard | } |
521 | 3b46e624 | ths | |
522 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
523 | 926c2d23 | balrog | if (bs_n < 1) help(); |
524 | 926c2d23 | balrog | |
525 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
526 | f58c7b35 | ths | |
527 | f58c7b35 | ths | if (bs_n > 1 && out_baseimg) |
528 | f58c7b35 | ths | error("-B makes no sense when concatenating multiple input images");
|
529 | 926c2d23 | balrog | |
530 | 926c2d23 | balrog | bs = calloc(bs_n, sizeof(BlockDriverState *));
|
531 | 926c2d23 | balrog | if (!bs)
|
532 | 926c2d23 | balrog | error("Out of memory");
|
533 | 926c2d23 | balrog | |
534 | 926c2d23 | balrog | total_sectors = 0;
|
535 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
536 | 926c2d23 | balrog | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt); |
537 | 926c2d23 | balrog | if (!bs[bs_i])
|
538 | 926c2d23 | balrog | error("Could not open '%s'", argv[optind + bs_i]);
|
539 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
540 | 926c2d23 | balrog | total_sectors += bs_sectors; |
541 | 926c2d23 | balrog | } |
542 | ea2384d3 | bellard | |
543 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
544 | ea2384d3 | bellard | if (!drv)
|
545 | d34dda5e | ths | error("Unknown file format '%s'", out_fmt);
|
546 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
547 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
548 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
549 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
550 | d8871c5a | ths | if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk)
|
551 | ec36ba14 | ths | error("Alternative compatibility level not supported for this file format");
|
552 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
|
553 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
554 | 926c2d23 | balrog | |
555 | f58c7b35 | ths | ret = bdrv_create(drv, out_filename, total_sectors, out_baseimg, flags); |
556 | ea2384d3 | bellard | if (ret < 0) { |
557 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
558 | 93c65b47 | aliguori | error("Formatting not supported for file format '%s'", out_fmt);
|
559 | 6e9ea0c0 | aurel32 | } else if (ret == -EFBIG) { |
560 | 6e9ea0c0 | aurel32 | error("The image size is too large for file format '%s'", out_fmt);
|
561 | ea2384d3 | bellard | } else {
|
562 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
563 | ea2384d3 | bellard | } |
564 | ea2384d3 | bellard | } |
565 | 3b46e624 | ths | |
566 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
567 | ea2384d3 | bellard | |
568 | 926c2d23 | balrog | bs_i = 0;
|
569 | 926c2d23 | balrog | bs_offset = 0;
|
570 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
571 | 926c2d23 | balrog | |
572 | 926c2d23 | balrog | if (flags & BLOCK_FLAG_COMPRESS) {
|
573 | faea38e7 | bellard | if (bdrv_get_info(out_bs, &bdi) < 0) |
574 | faea38e7 | bellard | error("could not get block driver info");
|
575 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
576 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
577 | ea2384d3 | bellard | error("invalid cluster size");
|
578 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
579 | ea2384d3 | bellard | sector_num = 0;
|
580 | ea2384d3 | bellard | for(;;) {
|
581 | 926c2d23 | balrog | int64_t bs_num; |
582 | 926c2d23 | balrog | int remainder;
|
583 | 926c2d23 | balrog | uint8_t *buf2; |
584 | 926c2d23 | balrog | |
585 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
586 | ea2384d3 | bellard | if (nb_sectors <= 0) |
587 | ea2384d3 | bellard | break;
|
588 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
589 | ea2384d3 | bellard | n = cluster_sectors; |
590 | ea2384d3 | bellard | else
|
591 | ea2384d3 | bellard | n = nb_sectors; |
592 | 926c2d23 | balrog | |
593 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
594 | 926c2d23 | balrog | assert (bs_num >= 0);
|
595 | 926c2d23 | balrog | remainder = n; |
596 | 926c2d23 | balrog | buf2 = buf; |
597 | 926c2d23 | balrog | while (remainder > 0) { |
598 | 926c2d23 | balrog | int nlow;
|
599 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
600 | 926c2d23 | balrog | bs_i++; |
601 | 926c2d23 | balrog | assert (bs_i < bs_n); |
602 | 926c2d23 | balrog | bs_offset += bs_sectors; |
603 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
604 | 926c2d23 | balrog | bs_num = 0;
|
605 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, "
|
606 | 926c2d23 | balrog | "bs_i=%d, bs_offset=%lld, bs_sectors=%lld\n",
|
607 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
608 | 926c2d23 | balrog | } |
609 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
610 | 926c2d23 | balrog | |
611 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
612 | 926c2d23 | balrog | |
613 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], bs_num, buf2, nlow) < 0) |
614 | 926c2d23 | balrog | error("error while reading");
|
615 | 926c2d23 | balrog | |
616 | 926c2d23 | balrog | buf2 += nlow * 512;
|
617 | 926c2d23 | balrog | bs_num += nlow; |
618 | 926c2d23 | balrog | |
619 | 926c2d23 | balrog | remainder -= nlow; |
620 | 926c2d23 | balrog | } |
621 | 926c2d23 | balrog | assert (remainder == 0);
|
622 | 926c2d23 | balrog | |
623 | ea2384d3 | bellard | if (n < cluster_sectors)
|
624 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
625 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
626 | 5fafdf24 | ths | if (bdrv_write_compressed(out_bs, sector_num, buf,
|
627 | faea38e7 | bellard | cluster_sectors) != 0)
|
628 | ec3757de | bellard | error("error while compressing sector %" PRId64,
|
629 | ec3757de | bellard | sector_num); |
630 | ea2384d3 | bellard | } |
631 | ea2384d3 | bellard | sector_num += n; |
632 | ea2384d3 | bellard | } |
633 | faea38e7 | bellard | /* signal EOF to align */
|
634 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
635 | ea2384d3 | bellard | } else {
|
636 | f58c7b35 | ths | sector_num = 0; // total number of sectors converted so far |
637 | ea2384d3 | bellard | for(;;) {
|
638 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
639 | ea2384d3 | bellard | if (nb_sectors <= 0) |
640 | ea2384d3 | bellard | break;
|
641 | ea2384d3 | bellard | if (nb_sectors >= (IO_BUF_SIZE / 512)) |
642 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
643 | ea2384d3 | bellard | else
|
644 | ea2384d3 | bellard | n = nb_sectors; |
645 | 926c2d23 | balrog | |
646 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
647 | 926c2d23 | balrog | bs_i ++; |
648 | 926c2d23 | balrog | assert (bs_i < bs_n); |
649 | 926c2d23 | balrog | bs_offset += bs_sectors; |
650 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
651 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, bs_i=%d, "
|
652 | 926c2d23 | balrog | "bs_offset=%lld, bs_sectors=%lld\n",
|
653 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
654 | 926c2d23 | balrog | } |
655 | 926c2d23 | balrog | |
656 | 926c2d23 | balrog | if (n > bs_offset + bs_sectors - sector_num)
|
657 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
658 | 926c2d23 | balrog | |
659 | 93c65b47 | aliguori | if (drv != &bdrv_host_device) {
|
660 | 93c65b47 | aliguori | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset,
|
661 | 93c65b47 | aliguori | n, &n1)) { |
662 | 93c65b47 | aliguori | sector_num += n1; |
663 | 93c65b47 | aliguori | continue;
|
664 | 93c65b47 | aliguori | } |
665 | 93c65b47 | aliguori | /* The next 'n1' sectors are allocated in the input image. Copy
|
666 | 93c65b47 | aliguori | only those as they may be followed by unallocated sectors. */
|
667 | 93c65b47 | aliguori | n = n1; |
668 | 93c65b47 | aliguori | } else {
|
669 | 93c65b47 | aliguori | n1 = n; |
670 | f58c7b35 | ths | } |
671 | f58c7b35 | ths | |
672 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n) < 0) |
673 | ea2384d3 | bellard | error("error while reading");
|
674 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
675 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
676 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
677 | ea2384d3 | bellard | buf1 = buf; |
678 | ea2384d3 | bellard | while (n > 0) { |
679 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
680 | f58c7b35 | ths | copy all sectors even the ones containing only NUL bytes,
|
681 | 93c65b47 | aliguori | because they may differ from the sectors in the base image.
|
682 | 93c65b47 | aliguori | |
683 | 93c65b47 | aliguori | If the output is to a host device, we also write out
|
684 | 93c65b47 | aliguori | sectors that are entirely 0, since whatever data was
|
685 | 93c65b47 | aliguori | already there is garbage, not 0s. */
|
686 | 93c65b47 | aliguori | if (drv == &bdrv_host_device || out_baseimg ||
|
687 | 93c65b47 | aliguori | is_allocated_sectors(buf1, n, &n1)) { |
688 | 5fafdf24 | ths | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
689 | ea2384d3 | bellard | error("error while writing");
|
690 | ea2384d3 | bellard | } |
691 | ea2384d3 | bellard | sector_num += n1; |
692 | ea2384d3 | bellard | n -= n1; |
693 | ea2384d3 | bellard | buf1 += n1 * 512;
|
694 | ea2384d3 | bellard | } |
695 | ea2384d3 | bellard | } |
696 | ea2384d3 | bellard | } |
697 | ea2384d3 | bellard | bdrv_delete(out_bs); |
698 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) |
699 | 926c2d23 | balrog | bdrv_delete(bs[bs_i]); |
700 | 926c2d23 | balrog | free(bs); |
701 | ea2384d3 | bellard | return 0; |
702 | ea2384d3 | bellard | } |
703 | ea2384d3 | bellard | |
704 | 57d1a2b6 | bellard | #ifdef _WIN32
|
705 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
706 | 57d1a2b6 | bellard | { |
707 | e8445331 | bellard | typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); |
708 | e8445331 | bellard | get_compressed_t get_compressed; |
709 | 57d1a2b6 | bellard | struct _stati64 st;
|
710 | e8445331 | bellard | |
711 | e8445331 | bellard | /* WinNT support GetCompressedFileSize to determine allocate size */
|
712 | e8445331 | bellard | get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); |
713 | e8445331 | bellard | if (get_compressed) {
|
714 | e8445331 | bellard | DWORD high, low; |
715 | e8445331 | bellard | low = get_compressed(filename, &high); |
716 | e8445331 | bellard | if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) |
717 | e8445331 | bellard | return (((int64_t) high) << 32) + low; |
718 | e8445331 | bellard | } |
719 | e8445331 | bellard | |
720 | 5fafdf24 | ths | if (_stati64(filename, &st) < 0) |
721 | 57d1a2b6 | bellard | return -1; |
722 | 57d1a2b6 | bellard | return st.st_size;
|
723 | 57d1a2b6 | bellard | } |
724 | 57d1a2b6 | bellard | #else
|
725 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
726 | 57d1a2b6 | bellard | { |
727 | 57d1a2b6 | bellard | struct stat st;
|
728 | 5fafdf24 | ths | if (stat(filename, &st) < 0) |
729 | 57d1a2b6 | bellard | return -1; |
730 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
731 | 57d1a2b6 | bellard | } |
732 | 57d1a2b6 | bellard | #endif
|
733 | 57d1a2b6 | bellard | |
734 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
735 | faea38e7 | bellard | { |
736 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
737 | faea38e7 | bellard | int nb_sns, i;
|
738 | faea38e7 | bellard | char buf[256]; |
739 | faea38e7 | bellard | |
740 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
741 | faea38e7 | bellard | if (nb_sns <= 0) |
742 | faea38e7 | bellard | return;
|
743 | faea38e7 | bellard | printf("Snapshot list:\n");
|
744 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
745 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
746 | faea38e7 | bellard | sn = &sn_tab[i]; |
747 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
748 | faea38e7 | bellard | } |
749 | faea38e7 | bellard | qemu_free(sn_tab); |
750 | faea38e7 | bellard | } |
751 | faea38e7 | bellard | |
752 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
753 | ea2384d3 | bellard | { |
754 | ea2384d3 | bellard | int c;
|
755 | ea2384d3 | bellard | const char *filename, *fmt; |
756 | ea2384d3 | bellard | BlockDriver *drv; |
757 | ea2384d3 | bellard | BlockDriverState *bs; |
758 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
759 | 96b8f136 | ths | uint64_t total_sectors; |
760 | 96b8f136 | ths | int64_t allocated_size; |
761 | 93b6b2a3 | bellard | char backing_filename[1024]; |
762 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
763 | faea38e7 | bellard | BlockDriverInfo bdi; |
764 | ea2384d3 | bellard | |
765 | ea2384d3 | bellard | fmt = NULL;
|
766 | ea2384d3 | bellard | for(;;) {
|
767 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
768 | ea2384d3 | bellard | if (c == -1) |
769 | ea2384d3 | bellard | break;
|
770 | ea2384d3 | bellard | switch(c) {
|
771 | ea2384d3 | bellard | case 'h': |
772 | ea2384d3 | bellard | help(); |
773 | ea2384d3 | bellard | break;
|
774 | ea2384d3 | bellard | case 'f': |
775 | ea2384d3 | bellard | fmt = optarg; |
776 | ea2384d3 | bellard | break;
|
777 | ea2384d3 | bellard | } |
778 | ea2384d3 | bellard | } |
779 | 5fafdf24 | ths | if (optind >= argc)
|
780 | ea2384d3 | bellard | help(); |
781 | ea2384d3 | bellard | filename = argv[optind++]; |
782 | ea2384d3 | bellard | |
783 | ea2384d3 | bellard | bs = bdrv_new("");
|
784 | ea2384d3 | bellard | if (!bs)
|
785 | ea2384d3 | bellard | error("Not enough memory");
|
786 | ea2384d3 | bellard | if (fmt) {
|
787 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
788 | ea2384d3 | bellard | if (!drv)
|
789 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
790 | ea2384d3 | bellard | } else {
|
791 | ea2384d3 | bellard | drv = NULL;
|
792 | ea2384d3 | bellard | } |
793 | 137519ce | aurel32 | if (bdrv_open2(bs, filename, BRDV_O_FLAGS, drv) < 0) { |
794 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
795 | ea2384d3 | bellard | } |
796 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
797 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
798 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
799 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
800 | 57d1a2b6 | bellard | if (allocated_size < 0) |
801 | a10ea30b | blueswir1 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
802 | de167e41 | bellard | else
|
803 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
804 | de167e41 | bellard | allocated_size); |
805 | ea2384d3 | bellard | printf("image: %s\n"
|
806 | ea2384d3 | bellard | "file format: %s\n"
|
807 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
808 | ea2384d3 | bellard | "disk size: %s\n",
|
809 | 5fafdf24 | ths | filename, fmt_name, size_buf, |
810 | ec3757de | bellard | (total_sectors * 512),
|
811 | ea2384d3 | bellard | dsize_buf); |
812 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
813 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
814 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
815 | 5fafdf24 | ths | if (bdi.cluster_size != 0) |
816 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
817 | faea38e7 | bellard | } |
818 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
819 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
820 | 93b6b2a3 | bellard | path_combine(backing_filename2, sizeof(backing_filename2),
|
821 | 93b6b2a3 | bellard | filename, backing_filename); |
822 | 5fafdf24 | ths | printf("backing file: %s (actual path: %s)\n",
|
823 | 93b6b2a3 | bellard | backing_filename, |
824 | 93b6b2a3 | bellard | backing_filename2); |
825 | faea38e7 | bellard | } |
826 | faea38e7 | bellard | dump_snapshots(bs); |
827 | ea2384d3 | bellard | bdrv_delete(bs); |
828 | ea2384d3 | bellard | return 0; |
829 | ea2384d3 | bellard | } |
830 | ea2384d3 | bellard | |
831 | f7b4a940 | aliguori | #define SNAPSHOT_LIST 1 |
832 | f7b4a940 | aliguori | #define SNAPSHOT_CREATE 2 |
833 | f7b4a940 | aliguori | #define SNAPSHOT_APPLY 3 |
834 | f7b4a940 | aliguori | #define SNAPSHOT_DELETE 4 |
835 | f7b4a940 | aliguori | |
836 | f7b4a940 | aliguori | static void img_snapshot(int argc, char **argv) |
837 | f7b4a940 | aliguori | { |
838 | f7b4a940 | aliguori | BlockDriverState *bs; |
839 | f7b4a940 | aliguori | QEMUSnapshotInfo sn; |
840 | f7b4a940 | aliguori | char *filename, *snapshot_name = NULL; |
841 | 40a4539e | aliguori | int c, ret;
|
842 | f7b4a940 | aliguori | int action = 0; |
843 | f7b4a940 | aliguori | qemu_timeval tv; |
844 | f7b4a940 | aliguori | |
845 | f7b4a940 | aliguori | /* Parse commandline parameters */
|
846 | f7b4a940 | aliguori | for(;;) {
|
847 | f7b4a940 | aliguori | c = getopt(argc, argv, "la:c:d:h");
|
848 | f7b4a940 | aliguori | if (c == -1) |
849 | f7b4a940 | aliguori | break;
|
850 | f7b4a940 | aliguori | switch(c) {
|
851 | f7b4a940 | aliguori | case 'h': |
852 | f7b4a940 | aliguori | help(); |
853 | f7b4a940 | aliguori | return;
|
854 | f7b4a940 | aliguori | case 'l': |
855 | f7b4a940 | aliguori | if (action) {
|
856 | f7b4a940 | aliguori | help(); |
857 | f7b4a940 | aliguori | return;
|
858 | f7b4a940 | aliguori | } |
859 | f7b4a940 | aliguori | action = SNAPSHOT_LIST; |
860 | f7b4a940 | aliguori | break;
|
861 | f7b4a940 | aliguori | case 'a': |
862 | f7b4a940 | aliguori | if (action) {
|
863 | f7b4a940 | aliguori | help(); |
864 | f7b4a940 | aliguori | return;
|
865 | f7b4a940 | aliguori | } |
866 | f7b4a940 | aliguori | action = SNAPSHOT_APPLY; |
867 | f7b4a940 | aliguori | snapshot_name = optarg; |
868 | f7b4a940 | aliguori | break;
|
869 | f7b4a940 | aliguori | case 'c': |
870 | f7b4a940 | aliguori | if (action) {
|
871 | f7b4a940 | aliguori | help(); |
872 | f7b4a940 | aliguori | return;
|
873 | f7b4a940 | aliguori | } |
874 | f7b4a940 | aliguori | action = SNAPSHOT_CREATE; |
875 | f7b4a940 | aliguori | snapshot_name = optarg; |
876 | f7b4a940 | aliguori | break;
|
877 | f7b4a940 | aliguori | case 'd': |
878 | f7b4a940 | aliguori | if (action) {
|
879 | f7b4a940 | aliguori | help(); |
880 | f7b4a940 | aliguori | return;
|
881 | f7b4a940 | aliguori | } |
882 | f7b4a940 | aliguori | action = SNAPSHOT_DELETE; |
883 | f7b4a940 | aliguori | snapshot_name = optarg; |
884 | f7b4a940 | aliguori | break;
|
885 | f7b4a940 | aliguori | } |
886 | f7b4a940 | aliguori | } |
887 | f7b4a940 | aliguori | |
888 | f7b4a940 | aliguori | if (optind >= argc)
|
889 | f7b4a940 | aliguori | help(); |
890 | f7b4a940 | aliguori | filename = argv[optind++]; |
891 | f7b4a940 | aliguori | |
892 | f7b4a940 | aliguori | /* Open the image */
|
893 | f7b4a940 | aliguori | bs = bdrv_new("");
|
894 | f7b4a940 | aliguori | if (!bs)
|
895 | f7b4a940 | aliguori | error("Not enough memory");
|
896 | f7b4a940 | aliguori | |
897 | f7b4a940 | aliguori | if (bdrv_open2(bs, filename, 0, NULL) < 0) { |
898 | f7b4a940 | aliguori | error("Could not open '%s'", filename);
|
899 | f7b4a940 | aliguori | } |
900 | f7b4a940 | aliguori | |
901 | f7b4a940 | aliguori | /* Perform the requested action */
|
902 | f7b4a940 | aliguori | switch(action) {
|
903 | f7b4a940 | aliguori | case SNAPSHOT_LIST:
|
904 | f7b4a940 | aliguori | dump_snapshots(bs); |
905 | f7b4a940 | aliguori | break;
|
906 | f7b4a940 | aliguori | |
907 | f7b4a940 | aliguori | case SNAPSHOT_CREATE:
|
908 | f7b4a940 | aliguori | memset(&sn, 0, sizeof(sn)); |
909 | f7b4a940 | aliguori | pstrcpy(sn.name, sizeof(sn.name), snapshot_name);
|
910 | f7b4a940 | aliguori | |
911 | f7b4a940 | aliguori | qemu_gettimeofday(&tv); |
912 | f7b4a940 | aliguori | sn.date_sec = tv.tv_sec; |
913 | f7b4a940 | aliguori | sn.date_nsec = tv.tv_usec * 1000;
|
914 | f7b4a940 | aliguori | |
915 | f7b4a940 | aliguori | ret = bdrv_snapshot_create(bs, &sn); |
916 | f7b4a940 | aliguori | if (ret)
|
917 | f7b4a940 | aliguori | error("Could not create snapshot '%s': %d (%s)",
|
918 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
919 | f7b4a940 | aliguori | break;
|
920 | f7b4a940 | aliguori | |
921 | f7b4a940 | aliguori | case SNAPSHOT_APPLY:
|
922 | f7b4a940 | aliguori | ret = bdrv_snapshot_goto(bs, snapshot_name); |
923 | f7b4a940 | aliguori | if (ret)
|
924 | f7b4a940 | aliguori | error("Could not apply snapshot '%s': %d (%s)",
|
925 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
926 | f7b4a940 | aliguori | break;
|
927 | f7b4a940 | aliguori | |
928 | f7b4a940 | aliguori | case SNAPSHOT_DELETE:
|
929 | f7b4a940 | aliguori | ret = bdrv_snapshot_delete(bs, snapshot_name); |
930 | f7b4a940 | aliguori | if (ret)
|
931 | f7b4a940 | aliguori | error("Could not delete snapshot '%s': %d (%s)",
|
932 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
933 | f7b4a940 | aliguori | break;
|
934 | f7b4a940 | aliguori | } |
935 | f7b4a940 | aliguori | |
936 | f7b4a940 | aliguori | /* Cleanup */
|
937 | f7b4a940 | aliguori | bdrv_delete(bs); |
938 | f7b4a940 | aliguori | } |
939 | f7b4a940 | aliguori | |
940 | ea2384d3 | bellard | int main(int argc, char **argv) |
941 | ea2384d3 | bellard | { |
942 | ea2384d3 | bellard | const char *cmd; |
943 | ea2384d3 | bellard | |
944 | ea2384d3 | bellard | bdrv_init(); |
945 | ea2384d3 | bellard | if (argc < 2) |
946 | ea2384d3 | bellard | help(); |
947 | ea2384d3 | bellard | cmd = argv[1];
|
948 | 8f9b157e | aurel32 | argc--; argv++; |
949 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
950 | ea2384d3 | bellard | img_create(argc, argv); |
951 | 1585969c | aliguori | } else if (!strcmp(cmd, "check")) { |
952 | 1585969c | aliguori | img_check(argc, argv); |
953 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
954 | ea2384d3 | bellard | img_commit(argc, argv); |
955 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
956 | ea2384d3 | bellard | img_convert(argc, argv); |
957 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
958 | ea2384d3 | bellard | img_info(argc, argv); |
959 | f7b4a940 | aliguori | } else if (!strcmp(cmd, "snapshot")) { |
960 | f7b4a940 | aliguori | img_snapshot(argc, argv); |
961 | ea2384d3 | bellard | } else {
|
962 | ea2384d3 | bellard | help(); |
963 | ea2384d3 | bellard | } |
964 | ea2384d3 | bellard | return 0; |
965 | ea2384d3 | bellard | } |