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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 | ec36ba14 | ths | #include "block_int.h" |
26 | 926c2d23 | balrog | #include <assert.h> |
27 | ea2384d3 | bellard | |
28 | e8445331 | bellard | #ifdef _WIN32
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29 | 4fddf62a | ths | #define WIN32_LEAN_AND_MEAN
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30 | e8445331 | bellard | #include <windows.h> |
31 | e8445331 | bellard | #endif
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32 | e8445331 | bellard | |
33 | 3f379ab1 | pbrook | static void __attribute__((noreturn)) error(const char *fmt, ...) |
34 | ea2384d3 | bellard | { |
35 | ea2384d3 | bellard | va_list ap; |
36 | ea2384d3 | bellard | va_start(ap, fmt); |
37 | 57d1a2b6 | bellard | fprintf(stderr, "qemu-img: ");
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38 | ea2384d3 | bellard | vfprintf(stderr, fmt, ap); |
39 | ea2384d3 | bellard | fprintf(stderr, "\n");
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40 | ea2384d3 | bellard | exit(1);
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41 | ea2384d3 | bellard | va_end(ap); |
42 | ea2384d3 | bellard | } |
43 | ea2384d3 | bellard | |
44 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
45 | ea2384d3 | bellard | { |
46 | ea2384d3 | bellard | printf(" %s", name);
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47 | ea2384d3 | bellard | } |
48 | ea2384d3 | bellard | |
49 | 3f379ab1 | pbrook | static void help(void) |
50 | ea2384d3 | bellard | { |
51 | 68d0f70e | bellard | printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
52 | 57d1a2b6 | bellard | "usage: qemu-img command [command options]\n"
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53 | ea2384d3 | bellard | "QEMU disk image utility\n"
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54 | ea2384d3 | bellard | "\n"
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55 | ea2384d3 | bellard | "Command syntax:\n"
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56 | ec36ba14 | ths | " create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
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57 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
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58 | c0be16d3 | balrog | " convert [-c] [-e] [-6] [-f fmt] [-O output_fmt] filename [filename2 [...]] output_filename\n"
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59 | ea2384d3 | bellard | " info [-f fmt] filename\n"
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60 | ea2384d3 | bellard | "\n"
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61 | ea2384d3 | bellard | "Command parameters:\n"
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62 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
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63 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
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64 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
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65 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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66 | ea2384d3 | bellard | " 'size' is the disk image size in kilobytes. Optional suffixes 'M' (megabyte)\n"
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67 | ea2384d3 | bellard | " and 'G' (gigabyte) are supported\n"
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68 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
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69 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
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70 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
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71 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
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72 | ec36ba14 | ths | " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
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73 | ea2384d3 | bellard | ); |
74 | ea2384d3 | bellard | printf("\nSupported format:");
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75 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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76 | ea2384d3 | bellard | printf("\n");
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77 | ea2384d3 | bellard | exit(1);
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78 | ea2384d3 | bellard | } |
79 | ea2384d3 | bellard | |
80 | ea2384d3 | bellard | #if defined(WIN32)
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81 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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82 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
83 | ea2384d3 | bellard | { |
84 | ea2384d3 | bellard | int c, i;
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85 | ea2384d3 | bellard | printf("Password: ");
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86 | ea2384d3 | bellard | fflush(stdout); |
87 | ea2384d3 | bellard | i = 0;
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88 | ea2384d3 | bellard | for(;;) {
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89 | ea2384d3 | bellard | c = getchar(); |
90 | ea2384d3 | bellard | if (c == '\n') |
91 | ea2384d3 | bellard | break;
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92 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
93 | ea2384d3 | bellard | buf[i++] = c; |
94 | ea2384d3 | bellard | } |
95 | ea2384d3 | bellard | buf[i] = '\0';
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96 | ea2384d3 | bellard | return 0; |
97 | ea2384d3 | bellard | } |
98 | ea2384d3 | bellard | |
99 | ea2384d3 | bellard | #else
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100 | ea2384d3 | bellard | |
101 | ea2384d3 | bellard | #include <termios.h> |
102 | ea2384d3 | bellard | |
103 | ea2384d3 | bellard | static struct termios oldtty; |
104 | ea2384d3 | bellard | |
105 | ea2384d3 | bellard | static void term_exit(void) |
106 | ea2384d3 | bellard | { |
107 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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108 | ea2384d3 | bellard | } |
109 | ea2384d3 | bellard | |
110 | ea2384d3 | bellard | static void term_init(void) |
111 | ea2384d3 | bellard | { |
112 | ea2384d3 | bellard | struct termios tty;
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113 | ea2384d3 | bellard | |
114 | ea2384d3 | bellard | tcgetattr (0, &tty);
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115 | ea2384d3 | bellard | oldtty = tty; |
116 | ea2384d3 | bellard | |
117 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
118 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
119 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
120 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
121 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
122 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
123 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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124 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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125 | 3b46e624 | ths | |
126 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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127 | ea2384d3 | bellard | |
128 | ea2384d3 | bellard | atexit(term_exit); |
129 | ea2384d3 | bellard | } |
130 | ea2384d3 | bellard | |
131 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
132 | ea2384d3 | bellard | { |
133 | ea2384d3 | bellard | uint8_t ch; |
134 | ea2384d3 | bellard | int i, ret;
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135 | ea2384d3 | bellard | |
136 | ea2384d3 | bellard | printf("password: ");
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137 | ea2384d3 | bellard | fflush(stdout); |
138 | ea2384d3 | bellard | term_init(); |
139 | ea2384d3 | bellard | i = 0;
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140 | ea2384d3 | bellard | for(;;) {
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141 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
142 | ea2384d3 | bellard | if (ret == -1) { |
143 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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144 | ea2384d3 | bellard | continue;
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145 | ea2384d3 | bellard | } else {
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146 | ea2384d3 | bellard | ret = -1;
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147 | ea2384d3 | bellard | break;
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148 | ea2384d3 | bellard | } |
149 | ea2384d3 | bellard | } else if (ret == 0) { |
150 | ea2384d3 | bellard | ret = -1;
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151 | ea2384d3 | bellard | break;
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152 | ea2384d3 | bellard | } else {
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153 | ea2384d3 | bellard | if (ch == '\r') { |
154 | ea2384d3 | bellard | ret = 0;
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155 | ea2384d3 | bellard | break;
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156 | ea2384d3 | bellard | } |
157 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
158 | ea2384d3 | bellard | buf[i++] = ch; |
159 | ea2384d3 | bellard | } |
160 | ea2384d3 | bellard | } |
161 | ea2384d3 | bellard | term_exit(); |
162 | ea2384d3 | bellard | buf[i] = '\0';
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163 | ea2384d3 | bellard | printf("\n");
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164 | ea2384d3 | bellard | return ret;
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165 | ea2384d3 | bellard | } |
166 | ea2384d3 | bellard | #endif
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167 | ea2384d3 | bellard | |
168 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
169 | 75c23805 | bellard | const char *fmt) |
170 | 75c23805 | bellard | { |
171 | 75c23805 | bellard | BlockDriverState *bs; |
172 | 75c23805 | bellard | BlockDriver *drv; |
173 | 75c23805 | bellard | char password[256]; |
174 | 75c23805 | bellard | |
175 | 75c23805 | bellard | bs = bdrv_new("");
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176 | 75c23805 | bellard | if (!bs)
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177 | 75c23805 | bellard | error("Not enough memory");
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178 | 75c23805 | bellard | if (fmt) {
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179 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
180 | 75c23805 | bellard | if (!drv)
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181 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
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182 | 75c23805 | bellard | } else {
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183 | 75c23805 | bellard | drv = NULL;
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184 | 75c23805 | bellard | } |
185 | 75c23805 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
186 | 75c23805 | bellard | error("Could not open '%s'", filename);
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187 | 75c23805 | bellard | } |
188 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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189 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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190 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
191 | 75c23805 | bellard | error("No password given");
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192 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
193 | 75c23805 | bellard | error("invalid password");
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194 | 75c23805 | bellard | } |
195 | 75c23805 | bellard | return bs;
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196 | 75c23805 | bellard | } |
197 | 75c23805 | bellard | |
198 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
199 | ea2384d3 | bellard | { |
200 | ec36ba14 | ths | int c, ret, flags;
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201 | ea2384d3 | bellard | const char *fmt = "raw"; |
202 | ea2384d3 | bellard | const char *filename; |
203 | ea2384d3 | bellard | const char *base_filename = NULL; |
204 | 96b8f136 | ths | uint64_t size; |
205 | ea2384d3 | bellard | const char *p; |
206 | ea2384d3 | bellard | BlockDriver *drv; |
207 | 3b46e624 | ths | |
208 | ec36ba14 | ths | flags = 0;
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209 | ea2384d3 | bellard | for(;;) {
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210 | ec36ba14 | ths | c = getopt(argc, argv, "b:f:he6");
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211 | ea2384d3 | bellard | if (c == -1) |
212 | ea2384d3 | bellard | break;
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213 | ea2384d3 | bellard | switch(c) {
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214 | ea2384d3 | bellard | case 'h': |
215 | ea2384d3 | bellard | help(); |
216 | ea2384d3 | bellard | break;
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217 | ea2384d3 | bellard | case 'b': |
218 | ea2384d3 | bellard | base_filename = optarg; |
219 | ea2384d3 | bellard | break;
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220 | ea2384d3 | bellard | case 'f': |
221 | ea2384d3 | bellard | fmt = optarg; |
222 | ea2384d3 | bellard | break;
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223 | ea2384d3 | bellard | case 'e': |
224 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
225 | ea2384d3 | bellard | break;
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226 | d8871c5a | ths | case '6': |
227 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
228 | d8871c5a | ths | break;
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229 | ea2384d3 | bellard | } |
230 | ea2384d3 | bellard | } |
231 | 5fafdf24 | ths | if (optind >= argc)
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232 | ea2384d3 | bellard | help(); |
233 | ea2384d3 | bellard | filename = argv[optind++]; |
234 | ea2384d3 | bellard | size = 0;
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235 | 75c23805 | bellard | if (base_filename) {
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236 | 75c23805 | bellard | BlockDriverState *bs; |
237 | 75c23805 | bellard | bs = bdrv_new_open(base_filename, NULL);
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238 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
239 | 75c23805 | bellard | size *= 512;
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240 | 75c23805 | bellard | bdrv_delete(bs); |
241 | 75c23805 | bellard | } else {
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242 | ea2384d3 | bellard | if (optind >= argc)
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243 | ea2384d3 | bellard | help(); |
244 | ea2384d3 | bellard | p = argv[optind]; |
245 | ea2384d3 | bellard | size = strtoul(p, (char **)&p, 0); |
246 | ea2384d3 | bellard | if (*p == 'M') { |
247 | ea2384d3 | bellard | size *= 1024 * 1024; |
248 | ea2384d3 | bellard | } else if (*p == 'G') { |
249 | ea2384d3 | bellard | size *= 1024 * 1024 * 1024; |
250 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
251 | ea2384d3 | bellard | size *= 1024;
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252 | ea2384d3 | bellard | } else {
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253 | ea2384d3 | bellard | help(); |
254 | ea2384d3 | bellard | } |
255 | ea2384d3 | bellard | } |
256 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
257 | ea2384d3 | bellard | if (!drv)
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258 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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259 | 0cfec834 | ths | printf("Formatting '%s', fmt=%s",
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260 | ea2384d3 | bellard | filename, fmt); |
261 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT)
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262 | ea2384d3 | bellard | printf(", encrypted");
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263 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPAT6)
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264 | ec36ba14 | ths | printf(", compatibility level=6");
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265 | 75c23805 | bellard | if (base_filename) {
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266 | 75c23805 | bellard | printf(", backing_file=%s",
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267 | ea2384d3 | bellard | base_filename); |
268 | 75c23805 | bellard | } |
269 | 96b8f136 | ths | printf(", size=%" PRIu64 " kB\n", size / 1024); |
270 | ec36ba14 | ths | ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
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271 | ea2384d3 | bellard | if (ret < 0) { |
272 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
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273 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
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274 | ea2384d3 | bellard | } else {
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275 | ea2384d3 | bellard | error("Error while formatting");
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276 | ea2384d3 | bellard | } |
277 | ea2384d3 | bellard | } |
278 | ea2384d3 | bellard | return 0; |
279 | ea2384d3 | bellard | } |
280 | ea2384d3 | bellard | |
281 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
282 | ea2384d3 | bellard | { |
283 | ea2384d3 | bellard | int c, ret;
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284 | ea2384d3 | bellard | const char *filename, *fmt; |
285 | ea2384d3 | bellard | BlockDriver *drv; |
286 | ea2384d3 | bellard | BlockDriverState *bs; |
287 | ea2384d3 | bellard | |
288 | ea2384d3 | bellard | fmt = NULL;
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289 | ea2384d3 | bellard | for(;;) {
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290 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
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291 | ea2384d3 | bellard | if (c == -1) |
292 | ea2384d3 | bellard | break;
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293 | ea2384d3 | bellard | switch(c) {
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294 | ea2384d3 | bellard | case 'h': |
295 | ea2384d3 | bellard | help(); |
296 | ea2384d3 | bellard | break;
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297 | ea2384d3 | bellard | case 'f': |
298 | ea2384d3 | bellard | fmt = optarg; |
299 | ea2384d3 | bellard | break;
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300 | ea2384d3 | bellard | } |
301 | ea2384d3 | bellard | } |
302 | 5fafdf24 | ths | if (optind >= argc)
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303 | ea2384d3 | bellard | help(); |
304 | ea2384d3 | bellard | filename = argv[optind++]; |
305 | ea2384d3 | bellard | |
306 | ea2384d3 | bellard | bs = bdrv_new("");
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307 | ea2384d3 | bellard | if (!bs)
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308 | ea2384d3 | bellard | error("Not enough memory");
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309 | ea2384d3 | bellard | if (fmt) {
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310 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
311 | ea2384d3 | bellard | if (!drv)
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312 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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313 | ea2384d3 | bellard | } else {
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314 | ea2384d3 | bellard | drv = NULL;
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315 | ea2384d3 | bellard | } |
316 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
317 | ea2384d3 | bellard | error("Could not open '%s'", filename);
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318 | ea2384d3 | bellard | } |
319 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
320 | ea2384d3 | bellard | switch(ret) {
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321 | ea2384d3 | bellard | case 0: |
322 | ea2384d3 | bellard | printf("Image committed.\n");
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323 | ea2384d3 | bellard | break;
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324 | ea2384d3 | bellard | case -ENOENT:
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325 | ea2384d3 | bellard | error("No disk inserted");
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326 | ea2384d3 | bellard | break;
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327 | ea2384d3 | bellard | case -EACCES:
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328 | ea2384d3 | bellard | error("Image is read-only");
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329 | ea2384d3 | bellard | break;
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330 | ea2384d3 | bellard | case -ENOTSUP:
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331 | ea2384d3 | bellard | error("Image is already committed");
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332 | ea2384d3 | bellard | break;
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333 | ea2384d3 | bellard | default:
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334 | ea2384d3 | bellard | error("Error while committing image");
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335 | ea2384d3 | bellard | break;
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336 | ea2384d3 | bellard | } |
337 | ea2384d3 | bellard | |
338 | ea2384d3 | bellard | bdrv_delete(bs); |
339 | ea2384d3 | bellard | return 0; |
340 | ea2384d3 | bellard | } |
341 | ea2384d3 | bellard | |
342 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
343 | ea2384d3 | bellard | { |
344 | ea2384d3 | bellard | int i;
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345 | ea2384d3 | bellard | len >>= 2;
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346 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
347 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
348 | ea2384d3 | bellard | return 1; |
349 | ea2384d3 | bellard | } |
350 | ea2384d3 | bellard | return 0; |
351 | ea2384d3 | bellard | } |
352 | ea2384d3 | bellard | |
353 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
354 | ea2384d3 | bellard | { |
355 | ea2384d3 | bellard | int v, i;
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356 | ea2384d3 | bellard | |
357 | ea2384d3 | bellard | if (n <= 0) { |
358 | ea2384d3 | bellard | *pnum = 0;
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359 | ea2384d3 | bellard | return 0; |
360 | ea2384d3 | bellard | } |
361 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
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362 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
363 | ea2384d3 | bellard | buf += 512;
|
364 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
365 | ea2384d3 | bellard | break;
|
366 | ea2384d3 | bellard | } |
367 | ea2384d3 | bellard | *pnum = i; |
368 | ea2384d3 | bellard | return v;
|
369 | ea2384d3 | bellard | } |
370 | ea2384d3 | bellard | |
371 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
372 | ea2384d3 | bellard | |
373 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
374 | ea2384d3 | bellard | { |
375 | 926c2d23 | balrog | int c, ret, n, n1, bs_n, bs_i, flags, cluster_size, cluster_sectors;
|
376 | 926c2d23 | balrog | const char *fmt, *out_fmt, *out_filename; |
377 | ea2384d3 | bellard | BlockDriver *drv; |
378 | 926c2d23 | balrog | BlockDriverState **bs, *out_bs; |
379 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
380 | 96b8f136 | ths | uint64_t bs_sectors; |
381 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
382 | ea2384d3 | bellard | const uint8_t *buf1;
|
383 | faea38e7 | bellard | BlockDriverInfo bdi; |
384 | ea2384d3 | bellard | |
385 | ea2384d3 | bellard | fmt = NULL;
|
386 | ea2384d3 | bellard | out_fmt = "raw";
|
387 | ec36ba14 | ths | flags = 0;
|
388 | ea2384d3 | bellard | for(;;) {
|
389 | ec36ba14 | ths | c = getopt(argc, argv, "f:O:hce6");
|
390 | ea2384d3 | bellard | if (c == -1) |
391 | ea2384d3 | bellard | break;
|
392 | ea2384d3 | bellard | switch(c) {
|
393 | ea2384d3 | bellard | case 'h': |
394 | ea2384d3 | bellard | help(); |
395 | ea2384d3 | bellard | break;
|
396 | ea2384d3 | bellard | case 'f': |
397 | ea2384d3 | bellard | fmt = optarg; |
398 | ea2384d3 | bellard | break;
|
399 | ea2384d3 | bellard | case 'O': |
400 | ea2384d3 | bellard | out_fmt = optarg; |
401 | ea2384d3 | bellard | break;
|
402 | ea2384d3 | bellard | case 'c': |
403 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPRESS; |
404 | ea2384d3 | bellard | break;
|
405 | ea2384d3 | bellard | case 'e': |
406 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
407 | ec36ba14 | ths | break;
|
408 | ec36ba14 | ths | case '6': |
409 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
410 | ea2384d3 | bellard | break;
|
411 | ea2384d3 | bellard | } |
412 | ea2384d3 | bellard | } |
413 | 3b46e624 | ths | |
414 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
415 | 926c2d23 | balrog | if (bs_n < 1) help(); |
416 | 926c2d23 | balrog | |
417 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
418 | 926c2d23 | balrog | |
419 | 926c2d23 | balrog | bs = calloc(bs_n, sizeof(BlockDriverState *));
|
420 | 926c2d23 | balrog | if (!bs)
|
421 | 926c2d23 | balrog | error("Out of memory");
|
422 | 926c2d23 | balrog | |
423 | 926c2d23 | balrog | total_sectors = 0;
|
424 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
425 | 926c2d23 | balrog | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt); |
426 | 926c2d23 | balrog | if (!bs[bs_i])
|
427 | 926c2d23 | balrog | error("Could not open '%s'", argv[optind + bs_i]);
|
428 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
429 | 926c2d23 | balrog | total_sectors += bs_sectors; |
430 | 926c2d23 | balrog | } |
431 | ea2384d3 | bellard | |
432 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
433 | ea2384d3 | bellard | if (!drv)
|
434 | d34dda5e | ths | error("Unknown file format '%s'", out_fmt);
|
435 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
436 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
437 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
438 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
439 | d8871c5a | ths | if (flags & BLOCK_FLAG_COMPAT6 && drv != &bdrv_vmdk)
|
440 | ec36ba14 | ths | error("Alternative compatibility level not supported for this file format");
|
441 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
|
442 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
443 | 926c2d23 | balrog | |
444 | ec36ba14 | ths | ret = bdrv_create(drv, out_filename, total_sectors, NULL, flags);
|
445 | ea2384d3 | bellard | if (ret < 0) { |
446 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
447 | 3c56521b | bellard | error("Formatting not supported for file format '%s'", fmt);
|
448 | ea2384d3 | bellard | } else {
|
449 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
450 | ea2384d3 | bellard | } |
451 | ea2384d3 | bellard | } |
452 | 3b46e624 | ths | |
453 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
454 | ea2384d3 | bellard | |
455 | 926c2d23 | balrog | bs_i = 0;
|
456 | 926c2d23 | balrog | bs_offset = 0;
|
457 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
458 | 926c2d23 | balrog | |
459 | 926c2d23 | balrog | if (flags & BLOCK_FLAG_COMPRESS) {
|
460 | faea38e7 | bellard | if (bdrv_get_info(out_bs, &bdi) < 0) |
461 | faea38e7 | bellard | error("could not get block driver info");
|
462 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
463 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
464 | ea2384d3 | bellard | error("invalid cluster size");
|
465 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
466 | ea2384d3 | bellard | sector_num = 0;
|
467 | ea2384d3 | bellard | for(;;) {
|
468 | 926c2d23 | balrog | int64_t bs_num; |
469 | 926c2d23 | balrog | int remainder;
|
470 | 926c2d23 | balrog | uint8_t *buf2; |
471 | 926c2d23 | balrog | |
472 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
473 | ea2384d3 | bellard | if (nb_sectors <= 0) |
474 | ea2384d3 | bellard | break;
|
475 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
476 | ea2384d3 | bellard | n = cluster_sectors; |
477 | ea2384d3 | bellard | else
|
478 | ea2384d3 | bellard | n = nb_sectors; |
479 | 926c2d23 | balrog | |
480 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
481 | 926c2d23 | balrog | assert (bs_num >= 0);
|
482 | 926c2d23 | balrog | remainder = n; |
483 | 926c2d23 | balrog | buf2 = buf; |
484 | 926c2d23 | balrog | while (remainder > 0) { |
485 | 926c2d23 | balrog | int nlow;
|
486 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
487 | 926c2d23 | balrog | bs_i++; |
488 | 926c2d23 | balrog | assert (bs_i < bs_n); |
489 | 926c2d23 | balrog | bs_offset += bs_sectors; |
490 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
491 | 926c2d23 | balrog | bs_num = 0;
|
492 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, "
|
493 | 926c2d23 | balrog | "bs_i=%d, bs_offset=%lld, bs_sectors=%lld\n",
|
494 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
495 | 926c2d23 | balrog | } |
496 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
497 | 926c2d23 | balrog | |
498 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
499 | 926c2d23 | balrog | |
500 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], bs_num, buf2, nlow) < 0) |
501 | 926c2d23 | balrog | error("error while reading");
|
502 | 926c2d23 | balrog | |
503 | 926c2d23 | balrog | buf2 += nlow * 512;
|
504 | 926c2d23 | balrog | bs_num += nlow; |
505 | 926c2d23 | balrog | |
506 | 926c2d23 | balrog | remainder -= nlow; |
507 | 926c2d23 | balrog | } |
508 | 926c2d23 | balrog | assert (remainder == 0);
|
509 | 926c2d23 | balrog | |
510 | ea2384d3 | bellard | if (n < cluster_sectors)
|
511 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
512 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
513 | 5fafdf24 | ths | if (bdrv_write_compressed(out_bs, sector_num, buf,
|
514 | faea38e7 | bellard | cluster_sectors) != 0)
|
515 | ec3757de | bellard | error("error while compressing sector %" PRId64,
|
516 | ec3757de | bellard | sector_num); |
517 | ea2384d3 | bellard | } |
518 | ea2384d3 | bellard | sector_num += n; |
519 | ea2384d3 | bellard | } |
520 | faea38e7 | bellard | /* signal EOF to align */
|
521 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
522 | ea2384d3 | bellard | } else {
|
523 | ea2384d3 | bellard | sector_num = 0;
|
524 | ea2384d3 | bellard | for(;;) {
|
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 >= (IO_BUF_SIZE / 512)) |
529 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
530 | ea2384d3 | bellard | else
|
531 | ea2384d3 | bellard | n = nb_sectors; |
532 | 926c2d23 | balrog | |
533 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
534 | 926c2d23 | balrog | bs_i ++; |
535 | 926c2d23 | balrog | assert (bs_i < bs_n); |
536 | 926c2d23 | balrog | bs_offset += bs_sectors; |
537 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
538 | 926c2d23 | balrog | /* printf("changing part: sector_num=%lld, bs_i=%d, "
|
539 | 926c2d23 | balrog | "bs_offset=%lld, bs_sectors=%lld\n",
|
540 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
541 | 926c2d23 | balrog | } |
542 | 926c2d23 | balrog | |
543 | 926c2d23 | balrog | if (n > bs_offset + bs_sectors - sector_num)
|
544 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
545 | 926c2d23 | balrog | |
546 | 926c2d23 | balrog | if (bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n) < 0) |
547 | ea2384d3 | bellard | error("error while reading");
|
548 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
549 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
550 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
551 | ea2384d3 | bellard | buf1 = buf; |
552 | ea2384d3 | bellard | while (n > 0) { |
553 | ea2384d3 | bellard | if (is_allocated_sectors(buf1, n, &n1)) {
|
554 | 5fafdf24 | ths | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
555 | ea2384d3 | bellard | error("error while writing");
|
556 | ea2384d3 | bellard | } |
557 | ea2384d3 | bellard | sector_num += n1; |
558 | ea2384d3 | bellard | n -= n1; |
559 | ea2384d3 | bellard | buf1 += n1 * 512;
|
560 | ea2384d3 | bellard | } |
561 | ea2384d3 | bellard | } |
562 | ea2384d3 | bellard | } |
563 | ea2384d3 | bellard | bdrv_delete(out_bs); |
564 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) |
565 | 926c2d23 | balrog | bdrv_delete(bs[bs_i]); |
566 | 926c2d23 | balrog | free(bs); |
567 | ea2384d3 | bellard | return 0; |
568 | ea2384d3 | bellard | } |
569 | ea2384d3 | bellard | |
570 | 57d1a2b6 | bellard | #ifdef _WIN32
|
571 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
572 | 57d1a2b6 | bellard | { |
573 | e8445331 | bellard | typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); |
574 | e8445331 | bellard | get_compressed_t get_compressed; |
575 | 57d1a2b6 | bellard | struct _stati64 st;
|
576 | e8445331 | bellard | |
577 | e8445331 | bellard | /* WinNT support GetCompressedFileSize to determine allocate size */
|
578 | e8445331 | bellard | get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); |
579 | e8445331 | bellard | if (get_compressed) {
|
580 | e8445331 | bellard | DWORD high, low; |
581 | e8445331 | bellard | low = get_compressed(filename, &high); |
582 | e8445331 | bellard | if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) |
583 | e8445331 | bellard | return (((int64_t) high) << 32) + low; |
584 | e8445331 | bellard | } |
585 | e8445331 | bellard | |
586 | 5fafdf24 | ths | if (_stati64(filename, &st) < 0) |
587 | 57d1a2b6 | bellard | return -1; |
588 | 57d1a2b6 | bellard | return st.st_size;
|
589 | 57d1a2b6 | bellard | } |
590 | 57d1a2b6 | bellard | #else
|
591 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
592 | 57d1a2b6 | bellard | { |
593 | 57d1a2b6 | bellard | struct stat st;
|
594 | 5fafdf24 | ths | if (stat(filename, &st) < 0) |
595 | 57d1a2b6 | bellard | return -1; |
596 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
597 | 57d1a2b6 | bellard | } |
598 | 57d1a2b6 | bellard | #endif
|
599 | 57d1a2b6 | bellard | |
600 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
601 | faea38e7 | bellard | { |
602 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
603 | faea38e7 | bellard | int nb_sns, i;
|
604 | faea38e7 | bellard | char buf[256]; |
605 | faea38e7 | bellard | |
606 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
607 | faea38e7 | bellard | if (nb_sns <= 0) |
608 | faea38e7 | bellard | return;
|
609 | faea38e7 | bellard | printf("Snapshot list:\n");
|
610 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
611 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
612 | faea38e7 | bellard | sn = &sn_tab[i]; |
613 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
614 | faea38e7 | bellard | } |
615 | faea38e7 | bellard | qemu_free(sn_tab); |
616 | faea38e7 | bellard | } |
617 | faea38e7 | bellard | |
618 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
619 | ea2384d3 | bellard | { |
620 | ea2384d3 | bellard | int c;
|
621 | ea2384d3 | bellard | const char *filename, *fmt; |
622 | ea2384d3 | bellard | BlockDriver *drv; |
623 | ea2384d3 | bellard | BlockDriverState *bs; |
624 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
625 | 96b8f136 | ths | uint64_t total_sectors; |
626 | 96b8f136 | ths | int64_t allocated_size; |
627 | 93b6b2a3 | bellard | char backing_filename[1024]; |
628 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
629 | faea38e7 | bellard | BlockDriverInfo bdi; |
630 | ea2384d3 | bellard | |
631 | ea2384d3 | bellard | fmt = NULL;
|
632 | ea2384d3 | bellard | for(;;) {
|
633 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
634 | ea2384d3 | bellard | if (c == -1) |
635 | ea2384d3 | bellard | break;
|
636 | ea2384d3 | bellard | switch(c) {
|
637 | ea2384d3 | bellard | case 'h': |
638 | ea2384d3 | bellard | help(); |
639 | ea2384d3 | bellard | break;
|
640 | ea2384d3 | bellard | case 'f': |
641 | ea2384d3 | bellard | fmt = optarg; |
642 | ea2384d3 | bellard | break;
|
643 | ea2384d3 | bellard | } |
644 | ea2384d3 | bellard | } |
645 | 5fafdf24 | ths | if (optind >= argc)
|
646 | ea2384d3 | bellard | help(); |
647 | ea2384d3 | bellard | filename = argv[optind++]; |
648 | ea2384d3 | bellard | |
649 | ea2384d3 | bellard | bs = bdrv_new("");
|
650 | ea2384d3 | bellard | if (!bs)
|
651 | ea2384d3 | bellard | error("Not enough memory");
|
652 | ea2384d3 | bellard | if (fmt) {
|
653 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
654 | ea2384d3 | bellard | if (!drv)
|
655 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
656 | ea2384d3 | bellard | } else {
|
657 | ea2384d3 | bellard | drv = NULL;
|
658 | ea2384d3 | bellard | } |
659 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
660 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
661 | ea2384d3 | bellard | } |
662 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
663 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
664 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
665 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
666 | 57d1a2b6 | bellard | if (allocated_size < 0) |
667 | de167e41 | bellard | sprintf(dsize_buf, "unavailable");
|
668 | de167e41 | bellard | else
|
669 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
670 | de167e41 | bellard | allocated_size); |
671 | ea2384d3 | bellard | printf("image: %s\n"
|
672 | ea2384d3 | bellard | "file format: %s\n"
|
673 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
674 | ea2384d3 | bellard | "disk size: %s\n",
|
675 | 5fafdf24 | ths | filename, fmt_name, size_buf, |
676 | ec3757de | bellard | (total_sectors * 512),
|
677 | ea2384d3 | bellard | dsize_buf); |
678 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
679 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
680 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
681 | 5fafdf24 | ths | if (bdi.cluster_size != 0) |
682 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
683 | faea38e7 | bellard | } |
684 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
685 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
686 | 93b6b2a3 | bellard | path_combine(backing_filename2, sizeof(backing_filename2),
|
687 | 93b6b2a3 | bellard | filename, backing_filename); |
688 | 5fafdf24 | ths | printf("backing file: %s (actual path: %s)\n",
|
689 | 93b6b2a3 | bellard | backing_filename, |
690 | 93b6b2a3 | bellard | backing_filename2); |
691 | faea38e7 | bellard | } |
692 | faea38e7 | bellard | dump_snapshots(bs); |
693 | ea2384d3 | bellard | bdrv_delete(bs); |
694 | ea2384d3 | bellard | return 0; |
695 | ea2384d3 | bellard | } |
696 | ea2384d3 | bellard | |
697 | ea2384d3 | bellard | int main(int argc, char **argv) |
698 | ea2384d3 | bellard | { |
699 | ea2384d3 | bellard | const char *cmd; |
700 | ea2384d3 | bellard | |
701 | ea2384d3 | bellard | bdrv_init(); |
702 | ea2384d3 | bellard | if (argc < 2) |
703 | ea2384d3 | bellard | help(); |
704 | ea2384d3 | bellard | cmd = argv[1];
|
705 | e3888186 | bellard | optind++; |
706 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
707 | ea2384d3 | bellard | img_create(argc, argv); |
708 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
709 | ea2384d3 | bellard | img_commit(argc, argv); |
710 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
711 | ea2384d3 | bellard | img_convert(argc, argv); |
712 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
713 | ea2384d3 | bellard | img_info(argc, argv); |
714 | ea2384d3 | bellard | } else {
|
715 | ea2384d3 | bellard | help(); |
716 | ea2384d3 | bellard | } |
717 | ea2384d3 | bellard | return 0; |
718 | ea2384d3 | bellard | } |