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1 | ea2384d3 | bellard | /*
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2 | ea2384d3 | bellard | * create a COW disk image
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3 | ea2384d3 | bellard | *
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4 | ea2384d3 | bellard | * Copyright (c) 2003 Fabrice Bellard
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5 | ea2384d3 | bellard | *
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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 | ea2384d3 | bellard | #include "vl.h" |
25 | ea2384d3 | bellard | |
26 | ea2384d3 | bellard | void *get_mmap_addr(unsigned long size) |
27 | ea2384d3 | bellard | { |
28 | ea2384d3 | bellard | return NULL; |
29 | ea2384d3 | bellard | } |
30 | ea2384d3 | bellard | |
31 | ea2384d3 | bellard | void qemu_free(void *ptr) |
32 | ea2384d3 | bellard | { |
33 | ea2384d3 | bellard | free(ptr); |
34 | ea2384d3 | bellard | } |
35 | ea2384d3 | bellard | |
36 | ea2384d3 | bellard | void *qemu_malloc(size_t size)
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37 | ea2384d3 | bellard | { |
38 | ea2384d3 | bellard | return malloc(size);
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39 | ea2384d3 | bellard | } |
40 | ea2384d3 | bellard | |
41 | ea2384d3 | bellard | void *qemu_mallocz(size_t size)
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42 | ea2384d3 | bellard | { |
43 | ea2384d3 | bellard | void *ptr;
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44 | ea2384d3 | bellard | ptr = qemu_malloc(size); |
45 | ea2384d3 | bellard | if (!ptr)
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46 | ea2384d3 | bellard | return NULL; |
47 | ea2384d3 | bellard | memset(ptr, 0, size);
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48 | ea2384d3 | bellard | return ptr;
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49 | ea2384d3 | bellard | } |
50 | ea2384d3 | bellard | |
51 | ea2384d3 | bellard | char *qemu_strdup(const char *str) |
52 | ea2384d3 | bellard | { |
53 | ea2384d3 | bellard | char *ptr;
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54 | ea2384d3 | bellard | ptr = qemu_malloc(strlen(str) + 1);
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55 | ea2384d3 | bellard | if (!ptr)
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56 | ea2384d3 | bellard | return NULL; |
57 | ea2384d3 | bellard | strcpy(ptr, str); |
58 | ea2384d3 | bellard | return ptr;
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59 | ea2384d3 | bellard | } |
60 | ea2384d3 | bellard | |
61 | ea2384d3 | bellard | void pstrcpy(char *buf, int buf_size, const char *str) |
62 | ea2384d3 | bellard | { |
63 | ea2384d3 | bellard | int c;
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64 | ea2384d3 | bellard | char *q = buf;
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65 | ea2384d3 | bellard | |
66 | ea2384d3 | bellard | if (buf_size <= 0) |
67 | ea2384d3 | bellard | return;
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68 | ea2384d3 | bellard | |
69 | ea2384d3 | bellard | for(;;) {
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70 | ea2384d3 | bellard | c = *str++; |
71 | ea2384d3 | bellard | if (c == 0 || q >= buf + buf_size - 1) |
72 | ea2384d3 | bellard | break;
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73 | ea2384d3 | bellard | *q++ = c; |
74 | ea2384d3 | bellard | } |
75 | ea2384d3 | bellard | *q = '\0';
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76 | ea2384d3 | bellard | } |
77 | ea2384d3 | bellard | |
78 | ea2384d3 | bellard | /* strcat and truncate. */
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79 | ea2384d3 | bellard | char *pstrcat(char *buf, int buf_size, const char *s) |
80 | ea2384d3 | bellard | { |
81 | ea2384d3 | bellard | int len;
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82 | ea2384d3 | bellard | len = strlen(buf); |
83 | ea2384d3 | bellard | if (len < buf_size)
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84 | ea2384d3 | bellard | pstrcpy(buf + len, buf_size - len, s); |
85 | ea2384d3 | bellard | return buf;
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86 | ea2384d3 | bellard | } |
87 | ea2384d3 | bellard | |
88 | ea2384d3 | bellard | int strstart(const char *str, const char *val, const char **ptr) |
89 | ea2384d3 | bellard | { |
90 | ea2384d3 | bellard | const char *p, *q; |
91 | ea2384d3 | bellard | p = str; |
92 | ea2384d3 | bellard | q = val; |
93 | ea2384d3 | bellard | while (*q != '\0') { |
94 | ea2384d3 | bellard | if (*p != *q)
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95 | ea2384d3 | bellard | return 0; |
96 | ea2384d3 | bellard | p++; |
97 | ea2384d3 | bellard | q++; |
98 | ea2384d3 | bellard | } |
99 | ea2384d3 | bellard | if (ptr)
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100 | ea2384d3 | bellard | *ptr = p; |
101 | ea2384d3 | bellard | return 1; |
102 | ea2384d3 | bellard | } |
103 | ea2384d3 | bellard | |
104 | ea2384d3 | bellard | void term_printf(const char *fmt, ...) |
105 | ea2384d3 | bellard | { |
106 | ea2384d3 | bellard | va_list ap; |
107 | ea2384d3 | bellard | va_start(ap, fmt); |
108 | ea2384d3 | bellard | vprintf(fmt, ap); |
109 | ea2384d3 | bellard | va_end(ap); |
110 | ea2384d3 | bellard | } |
111 | ea2384d3 | bellard | |
112 | ea2384d3 | bellard | void __attribute__((noreturn)) error(const char *fmt, ...) |
113 | ea2384d3 | bellard | { |
114 | ea2384d3 | bellard | va_list ap; |
115 | ea2384d3 | bellard | va_start(ap, fmt); |
116 | 57d1a2b6 | bellard | fprintf(stderr, "qemu-img: ");
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117 | ea2384d3 | bellard | vfprintf(stderr, fmt, ap); |
118 | ea2384d3 | bellard | fprintf(stderr, "\n");
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119 | ea2384d3 | bellard | exit(1);
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120 | ea2384d3 | bellard | va_end(ap); |
121 | ea2384d3 | bellard | } |
122 | ea2384d3 | bellard | |
123 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
124 | ea2384d3 | bellard | { |
125 | ea2384d3 | bellard | printf(" %s", name);
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126 | ea2384d3 | bellard | } |
127 | ea2384d3 | bellard | |
128 | ea2384d3 | bellard | void help(void) |
129 | ea2384d3 | bellard | { |
130 | 57d1a2b6 | bellard | printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004 Fabrice Bellard\n" |
131 | 57d1a2b6 | bellard | "usage: qemu-img command [command options]\n"
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132 | ea2384d3 | bellard | "QEMU disk image utility\n"
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133 | ea2384d3 | bellard | "\n"
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134 | ea2384d3 | bellard | "Command syntax:\n"
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135 | ea2384d3 | bellard | " create [-e] [-b base_image] [-f fmt] filename [size]\n"
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136 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
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137 | ea2384d3 | bellard | " convert [-c] [-e] [-f fmt] filename [-O output_fmt] output_filename\n"
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138 | ea2384d3 | bellard | " info [-f fmt] filename\n"
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139 | ea2384d3 | bellard | "\n"
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140 | ea2384d3 | bellard | "Command parameters:\n"
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141 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
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142 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
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143 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
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144 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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145 | ea2384d3 | bellard | " 'size' is the disk image size in kilobytes. Optional suffixes 'M' (megabyte)\n"
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146 | ea2384d3 | bellard | " and 'G' (gigabyte) are supported\n"
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147 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
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148 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
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149 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
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150 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
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151 | ea2384d3 | bellard | ); |
152 | ea2384d3 | bellard | printf("\nSupported format:");
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153 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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154 | ea2384d3 | bellard | printf("\n");
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155 | ea2384d3 | bellard | exit(1);
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156 | ea2384d3 | bellard | } |
157 | ea2384d3 | bellard | |
158 | ea2384d3 | bellard | |
159 | ea2384d3 | bellard | #define NB_SUFFIXES 4 |
160 | ea2384d3 | bellard | |
161 | ea2384d3 | bellard | static void get_human_readable_size(char *buf, int buf_size, int64_t size) |
162 | ea2384d3 | bellard | { |
163 | ea2384d3 | bellard | char suffixes[NB_SUFFIXES] = "KMGT"; |
164 | ea2384d3 | bellard | int64_t base; |
165 | ea2384d3 | bellard | int i;
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166 | ea2384d3 | bellard | |
167 | ea2384d3 | bellard | if (size <= 999) { |
168 | ea2384d3 | bellard | snprintf(buf, buf_size, "%lld", size);
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169 | ea2384d3 | bellard | } else {
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170 | ea2384d3 | bellard | base = 1024;
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171 | ea2384d3 | bellard | for(i = 0; i < NB_SUFFIXES; i++) { |
172 | ea2384d3 | bellard | if (size < (10 * base)) { |
173 | ea2384d3 | bellard | snprintf(buf, buf_size, "%0.1f%c",
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174 | ea2384d3 | bellard | (double)size / base,
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175 | ea2384d3 | bellard | suffixes[i]); |
176 | ea2384d3 | bellard | break;
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177 | ea2384d3 | bellard | } else if (size < (1000 * base) || i == (NB_SUFFIXES - 1)) { |
178 | ea2384d3 | bellard | snprintf(buf, buf_size, "%lld%c",
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179 | ea2384d3 | bellard | (size + (base >> 1)) / base,
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180 | ea2384d3 | bellard | suffixes[i]); |
181 | ea2384d3 | bellard | break;
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182 | ea2384d3 | bellard | } |
183 | ea2384d3 | bellard | base = base * 1024;
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184 | ea2384d3 | bellard | } |
185 | ea2384d3 | bellard | } |
186 | ea2384d3 | bellard | } |
187 | ea2384d3 | bellard | |
188 | ea2384d3 | bellard | #if defined(WIN32)
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189 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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190 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
191 | ea2384d3 | bellard | { |
192 | ea2384d3 | bellard | int c, i;
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193 | ea2384d3 | bellard | printf("Password: ");
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194 | ea2384d3 | bellard | fflush(stdout); |
195 | ea2384d3 | bellard | i = 0;
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196 | ea2384d3 | bellard | for(;;) {
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197 | ea2384d3 | bellard | c = getchar(); |
198 | ea2384d3 | bellard | if (c == '\n') |
199 | ea2384d3 | bellard | break;
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200 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
201 | ea2384d3 | bellard | buf[i++] = c; |
202 | ea2384d3 | bellard | } |
203 | ea2384d3 | bellard | buf[i] = '\0';
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204 | ea2384d3 | bellard | return 0; |
205 | ea2384d3 | bellard | } |
206 | ea2384d3 | bellard | |
207 | ea2384d3 | bellard | #else
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208 | ea2384d3 | bellard | |
209 | ea2384d3 | bellard | #include <termios.h> |
210 | ea2384d3 | bellard | |
211 | ea2384d3 | bellard | static struct termios oldtty; |
212 | ea2384d3 | bellard | |
213 | ea2384d3 | bellard | static void term_exit(void) |
214 | ea2384d3 | bellard | { |
215 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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216 | ea2384d3 | bellard | } |
217 | ea2384d3 | bellard | |
218 | ea2384d3 | bellard | static void term_init(void) |
219 | ea2384d3 | bellard | { |
220 | ea2384d3 | bellard | struct termios tty;
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221 | ea2384d3 | bellard | |
222 | ea2384d3 | bellard | tcgetattr (0, &tty);
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223 | ea2384d3 | bellard | oldtty = tty; |
224 | ea2384d3 | bellard | |
225 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
226 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
227 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
228 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
229 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
230 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
231 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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232 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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233 | ea2384d3 | bellard | |
234 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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235 | ea2384d3 | bellard | |
236 | ea2384d3 | bellard | atexit(term_exit); |
237 | ea2384d3 | bellard | } |
238 | ea2384d3 | bellard | |
239 | ea2384d3 | bellard | int read_password(char *buf, int buf_size) |
240 | ea2384d3 | bellard | { |
241 | ea2384d3 | bellard | uint8_t ch; |
242 | ea2384d3 | bellard | int i, ret;
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243 | ea2384d3 | bellard | |
244 | ea2384d3 | bellard | printf("password: ");
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245 | ea2384d3 | bellard | fflush(stdout); |
246 | ea2384d3 | bellard | term_init(); |
247 | ea2384d3 | bellard | i = 0;
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248 | ea2384d3 | bellard | for(;;) {
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249 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
250 | ea2384d3 | bellard | if (ret == -1) { |
251 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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252 | ea2384d3 | bellard | continue;
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253 | ea2384d3 | bellard | } else {
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254 | ea2384d3 | bellard | ret = -1;
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255 | ea2384d3 | bellard | break;
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256 | ea2384d3 | bellard | } |
257 | ea2384d3 | bellard | } else if (ret == 0) { |
258 | ea2384d3 | bellard | ret = -1;
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259 | ea2384d3 | bellard | break;
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260 | ea2384d3 | bellard | } else {
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261 | ea2384d3 | bellard | if (ch == '\r') { |
262 | ea2384d3 | bellard | ret = 0;
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263 | ea2384d3 | bellard | break;
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264 | ea2384d3 | bellard | } |
265 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
266 | ea2384d3 | bellard | buf[i++] = ch; |
267 | ea2384d3 | bellard | } |
268 | ea2384d3 | bellard | } |
269 | ea2384d3 | bellard | term_exit(); |
270 | ea2384d3 | bellard | buf[i] = '\0';
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271 | ea2384d3 | bellard | printf("\n");
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272 | ea2384d3 | bellard | return ret;
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273 | ea2384d3 | bellard | } |
274 | ea2384d3 | bellard | #endif
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275 | ea2384d3 | bellard | |
276 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
277 | 75c23805 | bellard | const char *fmt) |
278 | 75c23805 | bellard | { |
279 | 75c23805 | bellard | BlockDriverState *bs; |
280 | 75c23805 | bellard | BlockDriver *drv; |
281 | 75c23805 | bellard | char password[256]; |
282 | 75c23805 | bellard | |
283 | 75c23805 | bellard | bs = bdrv_new("");
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284 | 75c23805 | bellard | if (!bs)
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285 | 75c23805 | bellard | error("Not enough memory");
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286 | 75c23805 | bellard | if (fmt) {
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287 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
288 | 75c23805 | bellard | if (!drv)
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289 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
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290 | 75c23805 | bellard | } else {
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291 | 75c23805 | bellard | drv = NULL;
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292 | 75c23805 | bellard | } |
293 | 75c23805 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
294 | 75c23805 | bellard | error("Could not open '%s'", filename);
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295 | 75c23805 | bellard | } |
296 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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297 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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298 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
299 | 75c23805 | bellard | error("No password given");
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300 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
301 | 75c23805 | bellard | error("invalid password");
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302 | 75c23805 | bellard | } |
303 | 75c23805 | bellard | return bs;
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304 | 75c23805 | bellard | } |
305 | 75c23805 | bellard | |
306 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
307 | ea2384d3 | bellard | { |
308 | ea2384d3 | bellard | int c, ret, encrypted;
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309 | ea2384d3 | bellard | const char *fmt = "raw"; |
310 | ea2384d3 | bellard | const char *filename; |
311 | ea2384d3 | bellard | const char *base_filename = NULL; |
312 | ea2384d3 | bellard | int64_t size; |
313 | ea2384d3 | bellard | const char *p; |
314 | ea2384d3 | bellard | BlockDriver *drv; |
315 | ea2384d3 | bellard | |
316 | ea2384d3 | bellard | encrypted = 0;
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317 | ea2384d3 | bellard | for(;;) {
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318 | ea2384d3 | bellard | c = getopt(argc, argv, "b:f:he");
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319 | ea2384d3 | bellard | if (c == -1) |
320 | ea2384d3 | bellard | break;
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321 | ea2384d3 | bellard | switch(c) {
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322 | ea2384d3 | bellard | case 'h': |
323 | ea2384d3 | bellard | help(); |
324 | ea2384d3 | bellard | break;
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325 | ea2384d3 | bellard | case 'b': |
326 | ea2384d3 | bellard | base_filename = optarg; |
327 | ea2384d3 | bellard | break;
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328 | ea2384d3 | bellard | case 'f': |
329 | ea2384d3 | bellard | fmt = optarg; |
330 | ea2384d3 | bellard | break;
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331 | ea2384d3 | bellard | case 'e': |
332 | ea2384d3 | bellard | encrypted = 1;
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333 | ea2384d3 | bellard | break;
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334 | ea2384d3 | bellard | } |
335 | ea2384d3 | bellard | } |
336 | ea2384d3 | bellard | if (optind >= argc)
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337 | ea2384d3 | bellard | help(); |
338 | ea2384d3 | bellard | filename = argv[optind++]; |
339 | ea2384d3 | bellard | size = 0;
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340 | 75c23805 | bellard | if (base_filename) {
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341 | 75c23805 | bellard | BlockDriverState *bs; |
342 | 75c23805 | bellard | bs = bdrv_new_open(base_filename, NULL);
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343 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
344 | 75c23805 | bellard | size *= 512;
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345 | 75c23805 | bellard | bdrv_delete(bs); |
346 | 75c23805 | bellard | } else {
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347 | ea2384d3 | bellard | if (optind >= argc)
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348 | ea2384d3 | bellard | help(); |
349 | ea2384d3 | bellard | p = argv[optind]; |
350 | ea2384d3 | bellard | size = strtoul(p, (char **)&p, 0); |
351 | ea2384d3 | bellard | if (*p == 'M') { |
352 | ea2384d3 | bellard | size *= 1024 * 1024; |
353 | ea2384d3 | bellard | } else if (*p == 'G') { |
354 | ea2384d3 | bellard | size *= 1024 * 1024 * 1024; |
355 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
356 | ea2384d3 | bellard | size *= 1024;
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357 | ea2384d3 | bellard | } else {
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358 | ea2384d3 | bellard | help(); |
359 | ea2384d3 | bellard | } |
360 | ea2384d3 | bellard | } |
361 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
362 | ea2384d3 | bellard | if (!drv)
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363 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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364 | ea2384d3 | bellard | printf("Formating '%s', fmt=%s",
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365 | ea2384d3 | bellard | filename, fmt); |
366 | ea2384d3 | bellard | if (encrypted)
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367 | ea2384d3 | bellard | printf(", encrypted");
|
368 | 75c23805 | bellard | if (base_filename) {
|
369 | 75c23805 | bellard | printf(", backing_file=%s",
|
370 | ea2384d3 | bellard | base_filename); |
371 | 75c23805 | bellard | } |
372 | 75c23805 | bellard | printf(", size=%lld kB\n", size / 1024); |
373 | ea2384d3 | bellard | ret = bdrv_create(drv, filename, size / 512, base_filename, encrypted);
|
374 | ea2384d3 | bellard | if (ret < 0) { |
375 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
376 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
|
377 | ea2384d3 | bellard | } else {
|
378 | ea2384d3 | bellard | error("Error while formatting");
|
379 | ea2384d3 | bellard | } |
380 | ea2384d3 | bellard | } |
381 | ea2384d3 | bellard | return 0; |
382 | ea2384d3 | bellard | } |
383 | ea2384d3 | bellard | |
384 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
385 | ea2384d3 | bellard | { |
386 | ea2384d3 | bellard | int c, ret;
|
387 | ea2384d3 | bellard | const char *filename, *fmt; |
388 | ea2384d3 | bellard | BlockDriver *drv; |
389 | ea2384d3 | bellard | BlockDriverState *bs; |
390 | ea2384d3 | bellard | |
391 | ea2384d3 | bellard | fmt = NULL;
|
392 | ea2384d3 | bellard | for(;;) {
|
393 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
394 | ea2384d3 | bellard | if (c == -1) |
395 | ea2384d3 | bellard | break;
|
396 | ea2384d3 | bellard | switch(c) {
|
397 | ea2384d3 | bellard | case 'h': |
398 | ea2384d3 | bellard | help(); |
399 | ea2384d3 | bellard | break;
|
400 | ea2384d3 | bellard | case 'f': |
401 | ea2384d3 | bellard | fmt = optarg; |
402 | ea2384d3 | bellard | break;
|
403 | ea2384d3 | bellard | } |
404 | ea2384d3 | bellard | } |
405 | ea2384d3 | bellard | if (optind >= argc)
|
406 | ea2384d3 | bellard | help(); |
407 | ea2384d3 | bellard | filename = argv[optind++]; |
408 | ea2384d3 | bellard | |
409 | ea2384d3 | bellard | bs = bdrv_new("");
|
410 | ea2384d3 | bellard | if (!bs)
|
411 | ea2384d3 | bellard | error("Not enough memory");
|
412 | ea2384d3 | bellard | if (fmt) {
|
413 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
414 | ea2384d3 | bellard | if (!drv)
|
415 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
416 | ea2384d3 | bellard | } else {
|
417 | ea2384d3 | bellard | drv = NULL;
|
418 | ea2384d3 | bellard | } |
419 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
420 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
421 | ea2384d3 | bellard | } |
422 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
423 | ea2384d3 | bellard | switch(ret) {
|
424 | ea2384d3 | bellard | case 0: |
425 | ea2384d3 | bellard | printf("Image committed.\n");
|
426 | ea2384d3 | bellard | break;
|
427 | ea2384d3 | bellard | case -ENOENT:
|
428 | ea2384d3 | bellard | error("No disk inserted");
|
429 | ea2384d3 | bellard | break;
|
430 | ea2384d3 | bellard | case -EACCES:
|
431 | ea2384d3 | bellard | error("Image is read-only");
|
432 | ea2384d3 | bellard | break;
|
433 | ea2384d3 | bellard | case -ENOTSUP:
|
434 | ea2384d3 | bellard | error("Image is already committed");
|
435 | ea2384d3 | bellard | break;
|
436 | ea2384d3 | bellard | default:
|
437 | ea2384d3 | bellard | error("Error while committing image");
|
438 | ea2384d3 | bellard | break;
|
439 | ea2384d3 | bellard | } |
440 | ea2384d3 | bellard | |
441 | ea2384d3 | bellard | bdrv_delete(bs); |
442 | ea2384d3 | bellard | return 0; |
443 | ea2384d3 | bellard | } |
444 | ea2384d3 | bellard | |
445 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
446 | ea2384d3 | bellard | { |
447 | ea2384d3 | bellard | int i;
|
448 | ea2384d3 | bellard | len >>= 2;
|
449 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
450 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
451 | ea2384d3 | bellard | return 1; |
452 | ea2384d3 | bellard | } |
453 | ea2384d3 | bellard | return 0; |
454 | ea2384d3 | bellard | } |
455 | ea2384d3 | bellard | |
456 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
457 | ea2384d3 | bellard | { |
458 | ea2384d3 | bellard | int v, i;
|
459 | ea2384d3 | bellard | |
460 | ea2384d3 | bellard | if (n <= 0) { |
461 | ea2384d3 | bellard | *pnum = 0;
|
462 | ea2384d3 | bellard | return 0; |
463 | ea2384d3 | bellard | } |
464 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
|
465 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
466 | ea2384d3 | bellard | buf += 512;
|
467 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
468 | ea2384d3 | bellard | break;
|
469 | ea2384d3 | bellard | } |
470 | ea2384d3 | bellard | *pnum = i; |
471 | ea2384d3 | bellard | return v;
|
472 | ea2384d3 | bellard | } |
473 | ea2384d3 | bellard | |
474 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
475 | ea2384d3 | bellard | |
476 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
477 | ea2384d3 | bellard | { |
478 | ea2384d3 | bellard | int c, ret, n, n1, compress, cluster_size, cluster_sectors, encrypt;
|
479 | ea2384d3 | bellard | const char *filename, *fmt, *out_fmt, *out_filename; |
480 | ea2384d3 | bellard | BlockDriver *drv; |
481 | ea2384d3 | bellard | BlockDriverState *bs, *out_bs; |
482 | ea2384d3 | bellard | int64_t total_sectors, nb_sectors, sector_num; |
483 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
484 | ea2384d3 | bellard | const uint8_t *buf1;
|
485 | ea2384d3 | bellard | |
486 | ea2384d3 | bellard | fmt = NULL;
|
487 | ea2384d3 | bellard | out_fmt = "raw";
|
488 | ea2384d3 | bellard | compress = 0;
|
489 | ea2384d3 | bellard | encrypt = 0;
|
490 | ea2384d3 | bellard | for(;;) {
|
491 | ea2384d3 | bellard | c = getopt(argc, argv, "f:O:hce");
|
492 | ea2384d3 | bellard | if (c == -1) |
493 | ea2384d3 | bellard | break;
|
494 | ea2384d3 | bellard | switch(c) {
|
495 | ea2384d3 | bellard | case 'h': |
496 | ea2384d3 | bellard | help(); |
497 | ea2384d3 | bellard | break;
|
498 | ea2384d3 | bellard | case 'f': |
499 | ea2384d3 | bellard | fmt = optarg; |
500 | ea2384d3 | bellard | break;
|
501 | ea2384d3 | bellard | case 'O': |
502 | ea2384d3 | bellard | out_fmt = optarg; |
503 | ea2384d3 | bellard | break;
|
504 | ea2384d3 | bellard | case 'c': |
505 | ea2384d3 | bellard | compress = 1;
|
506 | ea2384d3 | bellard | break;
|
507 | ea2384d3 | bellard | case 'e': |
508 | ea2384d3 | bellard | encrypt = 1;
|
509 | ea2384d3 | bellard | break;
|
510 | ea2384d3 | bellard | } |
511 | ea2384d3 | bellard | } |
512 | ea2384d3 | bellard | if (optind >= argc)
|
513 | ea2384d3 | bellard | help(); |
514 | ea2384d3 | bellard | filename = argv[optind++]; |
515 | ea2384d3 | bellard | if (optind >= argc)
|
516 | ea2384d3 | bellard | help(); |
517 | ea2384d3 | bellard | out_filename = argv[optind++]; |
518 | ea2384d3 | bellard | |
519 | ea2384d3 | bellard | bs = bdrv_new_open(filename, fmt); |
520 | ea2384d3 | bellard | |
521 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
522 | ea2384d3 | bellard | if (!drv)
|
523 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
524 | ea2384d3 | bellard | if (compress && drv != &bdrv_qcow)
|
525 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
526 | ea2384d3 | bellard | if (encrypt && drv != &bdrv_qcow)
|
527 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
528 | ea2384d3 | bellard | if (compress && encrypt)
|
529 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
530 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
531 | ea2384d3 | bellard | ret = bdrv_create(drv, out_filename, total_sectors, NULL, encrypt);
|
532 | ea2384d3 | bellard | if (ret < 0) { |
533 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
534 | 3c56521b | bellard | error("Formatting not supported for file format '%s'", fmt);
|
535 | ea2384d3 | bellard | } else {
|
536 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
537 | ea2384d3 | bellard | } |
538 | ea2384d3 | bellard | } |
539 | ea2384d3 | bellard | |
540 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
541 | ea2384d3 | bellard | |
542 | ea2384d3 | bellard | if (compress) {
|
543 | ea2384d3 | bellard | cluster_size = qcow_get_cluster_size(out_bs); |
544 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
545 | ea2384d3 | bellard | error("invalid cluster size");
|
546 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
547 | ea2384d3 | bellard | sector_num = 0;
|
548 | ea2384d3 | bellard | for(;;) {
|
549 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
550 | ea2384d3 | bellard | if (nb_sectors <= 0) |
551 | ea2384d3 | bellard | break;
|
552 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
553 | ea2384d3 | bellard | n = cluster_sectors; |
554 | ea2384d3 | bellard | else
|
555 | ea2384d3 | bellard | n = nb_sectors; |
556 | ea2384d3 | bellard | if (bdrv_read(bs, sector_num, buf, n) < 0) |
557 | ea2384d3 | bellard | error("error while reading");
|
558 | ea2384d3 | bellard | if (n < cluster_sectors)
|
559 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
560 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
561 | ea2384d3 | bellard | if (qcow_compress_cluster(out_bs, sector_num, buf) != 0) |
562 | ea2384d3 | bellard | error("error while compressing sector %lld", sector_num);
|
563 | ea2384d3 | bellard | } |
564 | ea2384d3 | bellard | sector_num += n; |
565 | ea2384d3 | bellard | } |
566 | ea2384d3 | bellard | } else {
|
567 | ea2384d3 | bellard | sector_num = 0;
|
568 | ea2384d3 | bellard | for(;;) {
|
569 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
570 | ea2384d3 | bellard | if (nb_sectors <= 0) |
571 | ea2384d3 | bellard | break;
|
572 | ea2384d3 | bellard | if (nb_sectors >= (IO_BUF_SIZE / 512)) |
573 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
574 | ea2384d3 | bellard | else
|
575 | ea2384d3 | bellard | n = nb_sectors; |
576 | ea2384d3 | bellard | if (bdrv_read(bs, sector_num, buf, n) < 0) |
577 | ea2384d3 | bellard | error("error while reading");
|
578 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
579 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
580 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
581 | ea2384d3 | bellard | buf1 = buf; |
582 | ea2384d3 | bellard | while (n > 0) { |
583 | ea2384d3 | bellard | if (is_allocated_sectors(buf1, n, &n1)) {
|
584 | ea2384d3 | bellard | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
585 | ea2384d3 | bellard | error("error while writing");
|
586 | ea2384d3 | bellard | } |
587 | ea2384d3 | bellard | sector_num += n1; |
588 | ea2384d3 | bellard | n -= n1; |
589 | ea2384d3 | bellard | buf1 += n1 * 512;
|
590 | ea2384d3 | bellard | } |
591 | ea2384d3 | bellard | } |
592 | ea2384d3 | bellard | } |
593 | ea2384d3 | bellard | bdrv_delete(out_bs); |
594 | ea2384d3 | bellard | bdrv_delete(bs); |
595 | ea2384d3 | bellard | return 0; |
596 | ea2384d3 | bellard | } |
597 | ea2384d3 | bellard | |
598 | 57d1a2b6 | bellard | #ifdef _WIN32
|
599 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
600 | 57d1a2b6 | bellard | { |
601 | 57d1a2b6 | bellard | struct _stati64 st;
|
602 | 57d1a2b6 | bellard | if (_stati64(filename, &st) < 0) |
603 | 57d1a2b6 | bellard | return -1; |
604 | 57d1a2b6 | bellard | return st.st_size;
|
605 | 57d1a2b6 | bellard | } |
606 | 57d1a2b6 | bellard | #else
|
607 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
608 | 57d1a2b6 | bellard | { |
609 | 57d1a2b6 | bellard | struct stat st;
|
610 | 57d1a2b6 | bellard | if (stat(filename, &st) < 0) |
611 | 57d1a2b6 | bellard | return -1; |
612 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
613 | 57d1a2b6 | bellard | } |
614 | 57d1a2b6 | bellard | #endif
|
615 | 57d1a2b6 | bellard | |
616 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
617 | ea2384d3 | bellard | { |
618 | ea2384d3 | bellard | int c;
|
619 | ea2384d3 | bellard | const char *filename, *fmt; |
620 | ea2384d3 | bellard | BlockDriver *drv; |
621 | ea2384d3 | bellard | BlockDriverState *bs; |
622 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
623 | 57d1a2b6 | bellard | int64_t total_sectors, allocated_size; |
624 | ea2384d3 | bellard | |
625 | ea2384d3 | bellard | fmt = NULL;
|
626 | ea2384d3 | bellard | for(;;) {
|
627 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
628 | ea2384d3 | bellard | if (c == -1) |
629 | ea2384d3 | bellard | break;
|
630 | ea2384d3 | bellard | switch(c) {
|
631 | ea2384d3 | bellard | case 'h': |
632 | ea2384d3 | bellard | help(); |
633 | ea2384d3 | bellard | break;
|
634 | ea2384d3 | bellard | case 'f': |
635 | ea2384d3 | bellard | fmt = optarg; |
636 | ea2384d3 | bellard | break;
|
637 | ea2384d3 | bellard | } |
638 | ea2384d3 | bellard | } |
639 | ea2384d3 | bellard | if (optind >= argc)
|
640 | ea2384d3 | bellard | help(); |
641 | ea2384d3 | bellard | filename = argv[optind++]; |
642 | ea2384d3 | bellard | |
643 | ea2384d3 | bellard | bs = bdrv_new("");
|
644 | ea2384d3 | bellard | if (!bs)
|
645 | ea2384d3 | bellard | error("Not enough memory");
|
646 | ea2384d3 | bellard | if (fmt) {
|
647 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
648 | ea2384d3 | bellard | if (!drv)
|
649 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
650 | ea2384d3 | bellard | } else {
|
651 | ea2384d3 | bellard | drv = NULL;
|
652 | ea2384d3 | bellard | } |
653 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
654 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
655 | ea2384d3 | bellard | } |
656 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
657 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
658 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
659 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
660 | 57d1a2b6 | bellard | if (allocated_size < 0) |
661 | 57d1a2b6 | bellard | error("Could not get file size '%s'", filename);
|
662 | ea2384d3 | bellard | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
663 | 57d1a2b6 | bellard | allocated_size); |
664 | ea2384d3 | bellard | printf("image: %s\n"
|
665 | ea2384d3 | bellard | "file format: %s\n"
|
666 | ea2384d3 | bellard | "virtual size: %s (%lld bytes)\n"
|
667 | ea2384d3 | bellard | "disk size: %s\n",
|
668 | ea2384d3 | bellard | filename, fmt_name, size_buf, |
669 | ea2384d3 | bellard | total_sectors * 512,
|
670 | ea2384d3 | bellard | dsize_buf); |
671 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
672 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
673 | ea2384d3 | bellard | bdrv_delete(bs); |
674 | ea2384d3 | bellard | return 0; |
675 | ea2384d3 | bellard | } |
676 | ea2384d3 | bellard | |
677 | ea2384d3 | bellard | int main(int argc, char **argv) |
678 | ea2384d3 | bellard | { |
679 | ea2384d3 | bellard | const char *cmd; |
680 | ea2384d3 | bellard | |
681 | ea2384d3 | bellard | bdrv_init(); |
682 | ea2384d3 | bellard | if (argc < 2) |
683 | ea2384d3 | bellard | help(); |
684 | ea2384d3 | bellard | cmd = argv[1];
|
685 | e3888186 | bellard | optind++; |
686 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
687 | ea2384d3 | bellard | img_create(argc, argv); |
688 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
689 | ea2384d3 | bellard | img_commit(argc, argv); |
690 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
691 | ea2384d3 | bellard | img_convert(argc, argv); |
692 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
693 | ea2384d3 | bellard | img_info(argc, argv); |
694 | ea2384d3 | bellard | } else {
|
695 | ea2384d3 | bellard | help(); |
696 | ea2384d3 | bellard | } |
697 | ea2384d3 | bellard | return 0; |
698 | ea2384d3 | bellard | } |