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