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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 | 84f2e8ef | bellard | * Copyright (c) 2003-2007 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 | ea2384d3 | bellard | #include "vl.h" |
25 | ec36ba14 | ths | #include "block_int.h" |
26 | ea2384d3 | bellard | |
27 | e8445331 | bellard | #ifdef _WIN32
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28 | e8445331 | bellard | #include <windows.h> |
29 | e8445331 | bellard | #endif
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30 | e8445331 | bellard | |
31 | ea2384d3 | bellard | void *get_mmap_addr(unsigned long size) |
32 | ea2384d3 | bellard | { |
33 | ea2384d3 | bellard | return NULL; |
34 | ea2384d3 | bellard | } |
35 | ea2384d3 | bellard | |
36 | ea2384d3 | bellard | void qemu_free(void *ptr) |
37 | ea2384d3 | bellard | { |
38 | ea2384d3 | bellard | free(ptr); |
39 | ea2384d3 | bellard | } |
40 | ea2384d3 | bellard | |
41 | ea2384d3 | bellard | void *qemu_malloc(size_t size)
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42 | ea2384d3 | bellard | { |
43 | ea2384d3 | bellard | return malloc(size);
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44 | ea2384d3 | bellard | } |
45 | ea2384d3 | bellard | |
46 | ea2384d3 | bellard | void *qemu_mallocz(size_t size)
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47 | ea2384d3 | bellard | { |
48 | ea2384d3 | bellard | void *ptr;
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49 | ea2384d3 | bellard | ptr = qemu_malloc(size); |
50 | ea2384d3 | bellard | if (!ptr)
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51 | ea2384d3 | bellard | return NULL; |
52 | ea2384d3 | bellard | memset(ptr, 0, size);
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53 | ea2384d3 | bellard | return ptr;
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54 | ea2384d3 | bellard | } |
55 | ea2384d3 | bellard | |
56 | ea2384d3 | bellard | char *qemu_strdup(const char *str) |
57 | ea2384d3 | bellard | { |
58 | ea2384d3 | bellard | char *ptr;
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59 | ea2384d3 | bellard | ptr = qemu_malloc(strlen(str) + 1);
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60 | ea2384d3 | bellard | if (!ptr)
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61 | ea2384d3 | bellard | return NULL; |
62 | ea2384d3 | bellard | strcpy(ptr, str); |
63 | ea2384d3 | bellard | return ptr;
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64 | ea2384d3 | bellard | } |
65 | ea2384d3 | bellard | |
66 | ea2384d3 | bellard | void term_printf(const char *fmt, ...) |
67 | ea2384d3 | bellard | { |
68 | ea2384d3 | bellard | va_list ap; |
69 | ea2384d3 | bellard | va_start(ap, fmt); |
70 | ea2384d3 | bellard | vprintf(fmt, ap); |
71 | ea2384d3 | bellard | va_end(ap); |
72 | ea2384d3 | bellard | } |
73 | ea2384d3 | bellard | |
74 | fef30743 | ths | void term_print_filename(const char *filename) |
75 | fef30743 | ths | { |
76 | fef30743 | ths | term_printf(filename); |
77 | fef30743 | ths | } |
78 | fef30743 | ths | |
79 | 5fafdf24 | ths | void __attribute__((noreturn)) error(const char *fmt, ...) |
80 | ea2384d3 | bellard | { |
81 | ea2384d3 | bellard | va_list ap; |
82 | ea2384d3 | bellard | va_start(ap, fmt); |
83 | 57d1a2b6 | bellard | fprintf(stderr, "qemu-img: ");
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84 | ea2384d3 | bellard | vfprintf(stderr, fmt, ap); |
85 | ea2384d3 | bellard | fprintf(stderr, "\n");
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86 | ea2384d3 | bellard | exit(1);
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87 | ea2384d3 | bellard | va_end(ap); |
88 | ea2384d3 | bellard | } |
89 | ea2384d3 | bellard | |
90 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
91 | ea2384d3 | bellard | { |
92 | ea2384d3 | bellard | printf(" %s", name);
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93 | ea2384d3 | bellard | } |
94 | ea2384d3 | bellard | |
95 | ea2384d3 | bellard | void help(void) |
96 | ea2384d3 | bellard | { |
97 | 84f2e8ef | bellard | printf("qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2007 Fabrice Bellard\n" |
98 | 57d1a2b6 | bellard | "usage: qemu-img command [command options]\n"
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99 | ea2384d3 | bellard | "QEMU disk image utility\n"
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100 | ea2384d3 | bellard | "\n"
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101 | ea2384d3 | bellard | "Command syntax:\n"
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102 | ec36ba14 | ths | " create [-e] [-6] [-b base_image] [-f fmt] filename [size]\n"
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103 | ea2384d3 | bellard | " commit [-f fmt] filename\n"
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104 | ec36ba14 | ths | " convert [-c] [-e] [-6] [-f fmt] filename [-O output_fmt] output_filename\n"
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105 | ea2384d3 | bellard | " info [-f fmt] filename\n"
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106 | ea2384d3 | bellard | "\n"
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107 | ea2384d3 | bellard | "Command parameters:\n"
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108 | ea2384d3 | bellard | " 'filename' is a disk image filename\n"
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109 | ea2384d3 | bellard | " 'base_image' is the read-only disk image which is used as base for a copy on\n"
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110 | ea2384d3 | bellard | " write image; the copy on write image only stores the modified data\n"
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111 | ea2384d3 | bellard | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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112 | ea2384d3 | bellard | " 'size' is the disk image size in kilobytes. Optional suffixes 'M' (megabyte)\n"
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113 | ea2384d3 | bellard | " and 'G' (gigabyte) are supported\n"
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114 | ea2384d3 | bellard | " 'output_filename' is the destination disk image filename\n"
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115 | ea2384d3 | bellard | " 'output_fmt' is the destination format\n"
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116 | ea2384d3 | bellard | " '-c' indicates that target image must be compressed (qcow format only)\n"
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117 | ea2384d3 | bellard | " '-e' indicates that the target image must be encrypted (qcow format only)\n"
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118 | ec36ba14 | ths | " '-6' indicates that the target image must use compatibility level 6 (vmdk format only)\n"
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119 | ea2384d3 | bellard | ); |
120 | ea2384d3 | bellard | printf("\nSupported format:");
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121 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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122 | ea2384d3 | bellard | printf("\n");
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123 | ea2384d3 | bellard | exit(1);
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124 | ea2384d3 | bellard | } |
125 | ea2384d3 | bellard | |
126 | ea2384d3 | bellard | #if defined(WIN32)
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127 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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128 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
129 | ea2384d3 | bellard | { |
130 | ea2384d3 | bellard | int c, i;
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131 | ea2384d3 | bellard | printf("Password: ");
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132 | ea2384d3 | bellard | fflush(stdout); |
133 | ea2384d3 | bellard | i = 0;
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134 | ea2384d3 | bellard | for(;;) {
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135 | ea2384d3 | bellard | c = getchar(); |
136 | ea2384d3 | bellard | if (c == '\n') |
137 | ea2384d3 | bellard | break;
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138 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
139 | ea2384d3 | bellard | buf[i++] = c; |
140 | ea2384d3 | bellard | } |
141 | ea2384d3 | bellard | buf[i] = '\0';
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142 | ea2384d3 | bellard | return 0; |
143 | ea2384d3 | bellard | } |
144 | ea2384d3 | bellard | |
145 | ea2384d3 | bellard | #else
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146 | ea2384d3 | bellard | |
147 | ea2384d3 | bellard | #include <termios.h> |
148 | ea2384d3 | bellard | |
149 | ea2384d3 | bellard | static struct termios oldtty; |
150 | ea2384d3 | bellard | |
151 | ea2384d3 | bellard | static void term_exit(void) |
152 | ea2384d3 | bellard | { |
153 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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154 | ea2384d3 | bellard | } |
155 | ea2384d3 | bellard | |
156 | ea2384d3 | bellard | static void term_init(void) |
157 | ea2384d3 | bellard | { |
158 | ea2384d3 | bellard | struct termios tty;
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159 | ea2384d3 | bellard | |
160 | ea2384d3 | bellard | tcgetattr (0, &tty);
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161 | ea2384d3 | bellard | oldtty = tty; |
162 | ea2384d3 | bellard | |
163 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
164 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
165 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
166 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
167 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
168 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
169 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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170 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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171 | 3b46e624 | ths | |
172 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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173 | ea2384d3 | bellard | |
174 | ea2384d3 | bellard | atexit(term_exit); |
175 | ea2384d3 | bellard | } |
176 | ea2384d3 | bellard | |
177 | ea2384d3 | bellard | int read_password(char *buf, int buf_size) |
178 | ea2384d3 | bellard | { |
179 | ea2384d3 | bellard | uint8_t ch; |
180 | ea2384d3 | bellard | int i, ret;
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181 | ea2384d3 | bellard | |
182 | ea2384d3 | bellard | printf("password: ");
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183 | ea2384d3 | bellard | fflush(stdout); |
184 | ea2384d3 | bellard | term_init(); |
185 | ea2384d3 | bellard | i = 0;
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186 | ea2384d3 | bellard | for(;;) {
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187 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
188 | ea2384d3 | bellard | if (ret == -1) { |
189 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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190 | ea2384d3 | bellard | continue;
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191 | ea2384d3 | bellard | } else {
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192 | ea2384d3 | bellard | ret = -1;
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193 | ea2384d3 | bellard | break;
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194 | ea2384d3 | bellard | } |
195 | ea2384d3 | bellard | } else if (ret == 0) { |
196 | ea2384d3 | bellard | ret = -1;
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197 | ea2384d3 | bellard | break;
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198 | ea2384d3 | bellard | } else {
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199 | ea2384d3 | bellard | if (ch == '\r') { |
200 | ea2384d3 | bellard | ret = 0;
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201 | ea2384d3 | bellard | break;
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202 | ea2384d3 | bellard | } |
203 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
204 | ea2384d3 | bellard | buf[i++] = ch; |
205 | ea2384d3 | bellard | } |
206 | ea2384d3 | bellard | } |
207 | ea2384d3 | bellard | term_exit(); |
208 | ea2384d3 | bellard | buf[i] = '\0';
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209 | ea2384d3 | bellard | printf("\n");
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210 | ea2384d3 | bellard | return ret;
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211 | ea2384d3 | bellard | } |
212 | ea2384d3 | bellard | #endif
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213 | ea2384d3 | bellard | |
214 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
215 | 75c23805 | bellard | const char *fmt) |
216 | 75c23805 | bellard | { |
217 | 75c23805 | bellard | BlockDriverState *bs; |
218 | 75c23805 | bellard | BlockDriver *drv; |
219 | 75c23805 | bellard | char password[256]; |
220 | 75c23805 | bellard | |
221 | 75c23805 | bellard | bs = bdrv_new("");
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222 | 75c23805 | bellard | if (!bs)
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223 | 75c23805 | bellard | error("Not enough memory");
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224 | 75c23805 | bellard | if (fmt) {
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225 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
226 | 75c23805 | bellard | if (!drv)
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227 | 75c23805 | bellard | error("Unknown file format '%s'", fmt);
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228 | 75c23805 | bellard | } else {
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229 | 75c23805 | bellard | drv = NULL;
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230 | 75c23805 | bellard | } |
231 | 75c23805 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
232 | 75c23805 | bellard | error("Could not open '%s'", filename);
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233 | 75c23805 | bellard | } |
234 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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235 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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236 | 75c23805 | bellard | if (read_password(password, sizeof(password)) < 0) |
237 | 75c23805 | bellard | error("No password given");
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238 | 75c23805 | bellard | if (bdrv_set_key(bs, password) < 0) |
239 | 75c23805 | bellard | error("invalid password");
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240 | 75c23805 | bellard | } |
241 | 75c23805 | bellard | return bs;
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242 | 75c23805 | bellard | } |
243 | 75c23805 | bellard | |
244 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
245 | ea2384d3 | bellard | { |
246 | ec36ba14 | ths | int c, ret, flags;
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247 | ea2384d3 | bellard | const char *fmt = "raw"; |
248 | ea2384d3 | bellard | const char *filename; |
249 | ea2384d3 | bellard | const char *base_filename = NULL; |
250 | ea2384d3 | bellard | int64_t size; |
251 | ea2384d3 | bellard | const char *p; |
252 | ea2384d3 | bellard | BlockDriver *drv; |
253 | 3b46e624 | ths | |
254 | ec36ba14 | ths | flags = 0;
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255 | ea2384d3 | bellard | for(;;) {
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256 | ec36ba14 | ths | c = getopt(argc, argv, "b:f:he6");
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257 | ea2384d3 | bellard | if (c == -1) |
258 | ea2384d3 | bellard | break;
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259 | ea2384d3 | bellard | switch(c) {
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260 | ea2384d3 | bellard | case 'h': |
261 | ea2384d3 | bellard | help(); |
262 | ea2384d3 | bellard | break;
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263 | ea2384d3 | bellard | case 'b': |
264 | ea2384d3 | bellard | base_filename = optarg; |
265 | ea2384d3 | bellard | break;
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266 | ea2384d3 | bellard | case 'f': |
267 | ea2384d3 | bellard | fmt = optarg; |
268 | ea2384d3 | bellard | break;
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269 | ea2384d3 | bellard | case 'e': |
270 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
271 | ea2384d3 | bellard | break;
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272 | ec36ba14 | ths | case '6': |
273 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
274 | ec36ba14 | ths | break;
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275 | ea2384d3 | bellard | } |
276 | ea2384d3 | bellard | } |
277 | 5fafdf24 | ths | if (optind >= argc)
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278 | ea2384d3 | bellard | help(); |
279 | ea2384d3 | bellard | filename = argv[optind++]; |
280 | ea2384d3 | bellard | size = 0;
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281 | 75c23805 | bellard | if (base_filename) {
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282 | 75c23805 | bellard | BlockDriverState *bs; |
283 | 75c23805 | bellard | bs = bdrv_new_open(base_filename, NULL);
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284 | 75c23805 | bellard | bdrv_get_geometry(bs, &size); |
285 | 75c23805 | bellard | size *= 512;
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286 | 75c23805 | bellard | bdrv_delete(bs); |
287 | 75c23805 | bellard | } else {
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288 | ea2384d3 | bellard | if (optind >= argc)
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289 | ea2384d3 | bellard | help(); |
290 | ea2384d3 | bellard | p = argv[optind]; |
291 | ea2384d3 | bellard | size = strtoul(p, (char **)&p, 0); |
292 | ea2384d3 | bellard | if (*p == 'M') { |
293 | ea2384d3 | bellard | size *= 1024 * 1024; |
294 | ea2384d3 | bellard | } else if (*p == 'G') { |
295 | ea2384d3 | bellard | size *= 1024 * 1024 * 1024; |
296 | ea2384d3 | bellard | } else if (*p == 'k' || *p == 'K' || *p == '\0') { |
297 | ea2384d3 | bellard | size *= 1024;
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298 | ea2384d3 | bellard | } else {
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299 | ea2384d3 | bellard | help(); |
300 | ea2384d3 | bellard | } |
301 | ea2384d3 | bellard | } |
302 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
303 | ea2384d3 | bellard | if (!drv)
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304 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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305 | 0cfec834 | ths | printf("Formatting '%s', fmt=%s",
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306 | ea2384d3 | bellard | filename, fmt); |
307 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT)
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308 | ea2384d3 | bellard | printf(", encrypted");
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309 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPAT6)
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310 | ec36ba14 | ths | printf(", compatibility level=6");
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311 | 75c23805 | bellard | if (base_filename) {
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312 | 75c23805 | bellard | printf(", backing_file=%s",
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313 | ea2384d3 | bellard | base_filename); |
314 | 75c23805 | bellard | } |
315 | ec3757de | bellard | printf(", size=%" PRId64 " kB\n", (int64_t) (size / 1024)); |
316 | ec36ba14 | ths | ret = bdrv_create(drv, filename, size / 512, base_filename, flags);
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317 | ea2384d3 | bellard | if (ret < 0) { |
318 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
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319 | 3c56521b | bellard | error("Formatting or formatting option not supported for file format '%s'", fmt);
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320 | ea2384d3 | bellard | } else {
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321 | ea2384d3 | bellard | error("Error while formatting");
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322 | ea2384d3 | bellard | } |
323 | ea2384d3 | bellard | } |
324 | ea2384d3 | bellard | return 0; |
325 | ea2384d3 | bellard | } |
326 | ea2384d3 | bellard | |
327 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
328 | ea2384d3 | bellard | { |
329 | ea2384d3 | bellard | int c, ret;
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330 | ea2384d3 | bellard | const char *filename, *fmt; |
331 | ea2384d3 | bellard | BlockDriver *drv; |
332 | ea2384d3 | bellard | BlockDriverState *bs; |
333 | ea2384d3 | bellard | |
334 | ea2384d3 | bellard | fmt = NULL;
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335 | ea2384d3 | bellard | for(;;) {
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336 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
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337 | ea2384d3 | bellard | if (c == -1) |
338 | ea2384d3 | bellard | break;
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339 | ea2384d3 | bellard | switch(c) {
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340 | ea2384d3 | bellard | case 'h': |
341 | ea2384d3 | bellard | help(); |
342 | ea2384d3 | bellard | break;
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343 | ea2384d3 | bellard | case 'f': |
344 | ea2384d3 | bellard | fmt = optarg; |
345 | ea2384d3 | bellard | break;
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346 | ea2384d3 | bellard | } |
347 | ea2384d3 | bellard | } |
348 | 5fafdf24 | ths | if (optind >= argc)
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349 | ea2384d3 | bellard | help(); |
350 | ea2384d3 | bellard | filename = argv[optind++]; |
351 | ea2384d3 | bellard | |
352 | ea2384d3 | bellard | bs = bdrv_new("");
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353 | ea2384d3 | bellard | if (!bs)
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354 | ea2384d3 | bellard | error("Not enough memory");
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355 | ea2384d3 | bellard | if (fmt) {
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356 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
357 | ea2384d3 | bellard | if (!drv)
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358 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
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359 | ea2384d3 | bellard | } else {
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360 | ea2384d3 | bellard | drv = NULL;
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361 | ea2384d3 | bellard | } |
362 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
363 | ea2384d3 | bellard | error("Could not open '%s'", filename);
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364 | ea2384d3 | bellard | } |
365 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
366 | ea2384d3 | bellard | switch(ret) {
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367 | ea2384d3 | bellard | case 0: |
368 | ea2384d3 | bellard | printf("Image committed.\n");
|
369 | ea2384d3 | bellard | break;
|
370 | ea2384d3 | bellard | case -ENOENT:
|
371 | ea2384d3 | bellard | error("No disk inserted");
|
372 | ea2384d3 | bellard | break;
|
373 | ea2384d3 | bellard | case -EACCES:
|
374 | ea2384d3 | bellard | error("Image is read-only");
|
375 | ea2384d3 | bellard | break;
|
376 | ea2384d3 | bellard | case -ENOTSUP:
|
377 | ea2384d3 | bellard | error("Image is already committed");
|
378 | ea2384d3 | bellard | break;
|
379 | ea2384d3 | bellard | default:
|
380 | ea2384d3 | bellard | error("Error while committing image");
|
381 | ea2384d3 | bellard | break;
|
382 | ea2384d3 | bellard | } |
383 | ea2384d3 | bellard | |
384 | ea2384d3 | bellard | bdrv_delete(bs); |
385 | ea2384d3 | bellard | return 0; |
386 | ea2384d3 | bellard | } |
387 | ea2384d3 | bellard | |
388 | ea2384d3 | bellard | static int is_not_zero(const uint8_t *sector, int len) |
389 | ea2384d3 | bellard | { |
390 | ea2384d3 | bellard | int i;
|
391 | ea2384d3 | bellard | len >>= 2;
|
392 | ea2384d3 | bellard | for(i = 0;i < len; i++) { |
393 | ea2384d3 | bellard | if (((uint32_t *)sector)[i] != 0) |
394 | ea2384d3 | bellard | return 1; |
395 | ea2384d3 | bellard | } |
396 | ea2384d3 | bellard | return 0; |
397 | ea2384d3 | bellard | } |
398 | ea2384d3 | bellard | |
399 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
400 | ea2384d3 | bellard | { |
401 | ea2384d3 | bellard | int v, i;
|
402 | ea2384d3 | bellard | |
403 | ea2384d3 | bellard | if (n <= 0) { |
404 | ea2384d3 | bellard | *pnum = 0;
|
405 | ea2384d3 | bellard | return 0; |
406 | ea2384d3 | bellard | } |
407 | ea2384d3 | bellard | v = is_not_zero(buf, 512);
|
408 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
409 | ea2384d3 | bellard | buf += 512;
|
410 | ea2384d3 | bellard | if (v != is_not_zero(buf, 512)) |
411 | ea2384d3 | bellard | break;
|
412 | ea2384d3 | bellard | } |
413 | ea2384d3 | bellard | *pnum = i; |
414 | ea2384d3 | bellard | return v;
|
415 | ea2384d3 | bellard | } |
416 | ea2384d3 | bellard | |
417 | ea2384d3 | bellard | #define IO_BUF_SIZE 65536 |
418 | ea2384d3 | bellard | |
419 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
420 | ea2384d3 | bellard | { |
421 | ec36ba14 | ths | int c, ret, n, n1, flags, cluster_size, cluster_sectors;
|
422 | ea2384d3 | bellard | const char *filename, *fmt, *out_fmt, *out_filename; |
423 | ea2384d3 | bellard | BlockDriver *drv; |
424 | ea2384d3 | bellard | BlockDriverState *bs, *out_bs; |
425 | ea2384d3 | bellard | int64_t total_sectors, nb_sectors, sector_num; |
426 | ea2384d3 | bellard | uint8_t buf[IO_BUF_SIZE]; |
427 | ea2384d3 | bellard | const uint8_t *buf1;
|
428 | faea38e7 | bellard | BlockDriverInfo bdi; |
429 | ea2384d3 | bellard | |
430 | ea2384d3 | bellard | fmt = NULL;
|
431 | ea2384d3 | bellard | out_fmt = "raw";
|
432 | ec36ba14 | ths | flags = 0;
|
433 | ea2384d3 | bellard | for(;;) {
|
434 | ec36ba14 | ths | c = getopt(argc, argv, "f:O: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 | ea2384d3 | bellard | case 'c': |
448 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPRESS; |
449 | ea2384d3 | bellard | break;
|
450 | ea2384d3 | bellard | case 'e': |
451 | ec36ba14 | ths | flags |= BLOCK_FLAG_ENCRYPT; |
452 | ec36ba14 | ths | break;
|
453 | ec36ba14 | ths | case '6': |
454 | ec36ba14 | ths | flags |= BLOCK_FLAG_COMPAT6; |
455 | ea2384d3 | bellard | break;
|
456 | ea2384d3 | bellard | } |
457 | ea2384d3 | bellard | } |
458 | 5fafdf24 | ths | if (optind >= argc)
|
459 | ea2384d3 | bellard | help(); |
460 | ea2384d3 | bellard | filename = argv[optind++]; |
461 | 5fafdf24 | ths | if (optind >= argc)
|
462 | ea2384d3 | bellard | help(); |
463 | ea2384d3 | bellard | out_filename = argv[optind++]; |
464 | 3b46e624 | ths | |
465 | ea2384d3 | bellard | bs = bdrv_new_open(filename, fmt); |
466 | ea2384d3 | bellard | |
467 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
468 | ea2384d3 | bellard | if (!drv)
|
469 | d34dda5e | ths | error("Unknown file format '%s'", out_fmt);
|
470 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
471 | ea2384d3 | bellard | error("Compression not supported for this file format");
|
472 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && drv != &bdrv_qcow && drv != &bdrv_qcow2)
|
473 | ea2384d3 | bellard | error("Encryption not supported for this file format");
|
474 | ec36ba14 | ths | if (flags & BLOCK_FLAG_COMPRESS && drv != &bdrv_vmdk)
|
475 | ec36ba14 | ths | error("Alternative compatibility level not supported for this file format");
|
476 | ec36ba14 | ths | if (flags & BLOCK_FLAG_ENCRYPT && flags & BLOCK_FLAG_COMPRESS)
|
477 | ea2384d3 | bellard | error("Compression and encryption not supported at the same time");
|
478 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
479 | ec36ba14 | ths | ret = bdrv_create(drv, out_filename, total_sectors, NULL, flags);
|
480 | ea2384d3 | bellard | if (ret < 0) { |
481 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
482 | 3c56521b | bellard | error("Formatting not supported for file format '%s'", fmt);
|
483 | ea2384d3 | bellard | } else {
|
484 | ea2384d3 | bellard | error("Error while formatting '%s'", out_filename);
|
485 | ea2384d3 | bellard | } |
486 | ea2384d3 | bellard | } |
487 | 3b46e624 | ths | |
488 | ea2384d3 | bellard | out_bs = bdrv_new_open(out_filename, out_fmt); |
489 | ea2384d3 | bellard | |
490 | ec36ba14 | ths | if (flags && BLOCK_FLAG_COMPRESS) {
|
491 | faea38e7 | bellard | if (bdrv_get_info(out_bs, &bdi) < 0) |
492 | faea38e7 | bellard | error("could not get block driver info");
|
493 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
494 | ea2384d3 | bellard | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) |
495 | ea2384d3 | bellard | error("invalid cluster size");
|
496 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
497 | ea2384d3 | bellard | sector_num = 0;
|
498 | ea2384d3 | bellard | for(;;) {
|
499 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
500 | ea2384d3 | bellard | if (nb_sectors <= 0) |
501 | ea2384d3 | bellard | break;
|
502 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
503 | ea2384d3 | bellard | n = cluster_sectors; |
504 | ea2384d3 | bellard | else
|
505 | ea2384d3 | bellard | n = nb_sectors; |
506 | 5fafdf24 | ths | if (bdrv_read(bs, sector_num, buf, n) < 0) |
507 | ea2384d3 | bellard | error("error while reading");
|
508 | ea2384d3 | bellard | if (n < cluster_sectors)
|
509 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
510 | ea2384d3 | bellard | if (is_not_zero(buf, cluster_size)) {
|
511 | 5fafdf24 | ths | if (bdrv_write_compressed(out_bs, sector_num, buf,
|
512 | faea38e7 | bellard | cluster_sectors) != 0)
|
513 | ec3757de | bellard | error("error while compressing sector %" PRId64,
|
514 | ec3757de | bellard | sector_num); |
515 | ea2384d3 | bellard | } |
516 | ea2384d3 | bellard | sector_num += n; |
517 | ea2384d3 | bellard | } |
518 | faea38e7 | bellard | /* signal EOF to align */
|
519 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
520 | ea2384d3 | bellard | } else {
|
521 | ea2384d3 | bellard | sector_num = 0;
|
522 | ea2384d3 | bellard | for(;;) {
|
523 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
524 | ea2384d3 | bellard | if (nb_sectors <= 0) |
525 | ea2384d3 | bellard | break;
|
526 | ea2384d3 | bellard | if (nb_sectors >= (IO_BUF_SIZE / 512)) |
527 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
528 | ea2384d3 | bellard | else
|
529 | ea2384d3 | bellard | n = nb_sectors; |
530 | 5fafdf24 | ths | if (bdrv_read(bs, sector_num, buf, n) < 0) |
531 | ea2384d3 | bellard | error("error while reading");
|
532 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
533 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
534 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
535 | ea2384d3 | bellard | buf1 = buf; |
536 | ea2384d3 | bellard | while (n > 0) { |
537 | ea2384d3 | bellard | if (is_allocated_sectors(buf1, n, &n1)) {
|
538 | 5fafdf24 | ths | if (bdrv_write(out_bs, sector_num, buf1, n1) < 0) |
539 | ea2384d3 | bellard | error("error while writing");
|
540 | ea2384d3 | bellard | } |
541 | ea2384d3 | bellard | sector_num += n1; |
542 | ea2384d3 | bellard | n -= n1; |
543 | ea2384d3 | bellard | buf1 += n1 * 512;
|
544 | ea2384d3 | bellard | } |
545 | ea2384d3 | bellard | } |
546 | ea2384d3 | bellard | } |
547 | ea2384d3 | bellard | bdrv_delete(out_bs); |
548 | ea2384d3 | bellard | bdrv_delete(bs); |
549 | ea2384d3 | bellard | return 0; |
550 | ea2384d3 | bellard | } |
551 | ea2384d3 | bellard | |
552 | 57d1a2b6 | bellard | #ifdef _WIN32
|
553 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
554 | 57d1a2b6 | bellard | { |
555 | e8445331 | bellard | typedef DWORD (WINAPI * get_compressed_t)(const char *filename, DWORD *high); |
556 | e8445331 | bellard | get_compressed_t get_compressed; |
557 | 57d1a2b6 | bellard | struct _stati64 st;
|
558 | e8445331 | bellard | |
559 | e8445331 | bellard | /* WinNT support GetCompressedFileSize to determine allocate size */
|
560 | e8445331 | bellard | get_compressed = (get_compressed_t) GetProcAddress(GetModuleHandle("kernel32"), "GetCompressedFileSizeA"); |
561 | e8445331 | bellard | if (get_compressed) {
|
562 | e8445331 | bellard | DWORD high, low; |
563 | e8445331 | bellard | low = get_compressed(filename, &high); |
564 | e8445331 | bellard | if (low != 0xFFFFFFFFlu || GetLastError() == NO_ERROR) |
565 | e8445331 | bellard | return (((int64_t) high) << 32) + low; |
566 | e8445331 | bellard | } |
567 | e8445331 | bellard | |
568 | 5fafdf24 | ths | if (_stati64(filename, &st) < 0) |
569 | 57d1a2b6 | bellard | return -1; |
570 | 57d1a2b6 | bellard | return st.st_size;
|
571 | 57d1a2b6 | bellard | } |
572 | 57d1a2b6 | bellard | #else
|
573 | 57d1a2b6 | bellard | static int64_t get_allocated_file_size(const char *filename) |
574 | 57d1a2b6 | bellard | { |
575 | 57d1a2b6 | bellard | struct stat st;
|
576 | 5fafdf24 | ths | if (stat(filename, &st) < 0) |
577 | 57d1a2b6 | bellard | return -1; |
578 | 57d1a2b6 | bellard | return (int64_t)st.st_blocks * 512; |
579 | 57d1a2b6 | bellard | } |
580 | 57d1a2b6 | bellard | #endif
|
581 | 57d1a2b6 | bellard | |
582 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
583 | faea38e7 | bellard | { |
584 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
585 | faea38e7 | bellard | int nb_sns, i;
|
586 | faea38e7 | bellard | char buf[256]; |
587 | faea38e7 | bellard | |
588 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
589 | faea38e7 | bellard | if (nb_sns <= 0) |
590 | faea38e7 | bellard | return;
|
591 | faea38e7 | bellard | printf("Snapshot list:\n");
|
592 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
593 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
594 | faea38e7 | bellard | sn = &sn_tab[i]; |
595 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
596 | faea38e7 | bellard | } |
597 | faea38e7 | bellard | qemu_free(sn_tab); |
598 | faea38e7 | bellard | } |
599 | faea38e7 | bellard | |
600 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
601 | ea2384d3 | bellard | { |
602 | ea2384d3 | bellard | int c;
|
603 | ea2384d3 | bellard | const char *filename, *fmt; |
604 | ea2384d3 | bellard | BlockDriver *drv; |
605 | ea2384d3 | bellard | BlockDriverState *bs; |
606 | ea2384d3 | bellard | char fmt_name[128], size_buf[128], dsize_buf[128]; |
607 | 57d1a2b6 | bellard | int64_t total_sectors, allocated_size; |
608 | 93b6b2a3 | bellard | char backing_filename[1024]; |
609 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
610 | faea38e7 | bellard | BlockDriverInfo bdi; |
611 | ea2384d3 | bellard | |
612 | ea2384d3 | bellard | fmt = NULL;
|
613 | ea2384d3 | bellard | for(;;) {
|
614 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
615 | ea2384d3 | bellard | if (c == -1) |
616 | ea2384d3 | bellard | break;
|
617 | ea2384d3 | bellard | switch(c) {
|
618 | ea2384d3 | bellard | case 'h': |
619 | ea2384d3 | bellard | help(); |
620 | ea2384d3 | bellard | break;
|
621 | ea2384d3 | bellard | case 'f': |
622 | ea2384d3 | bellard | fmt = optarg; |
623 | ea2384d3 | bellard | break;
|
624 | ea2384d3 | bellard | } |
625 | ea2384d3 | bellard | } |
626 | 5fafdf24 | ths | if (optind >= argc)
|
627 | ea2384d3 | bellard | help(); |
628 | ea2384d3 | bellard | filename = argv[optind++]; |
629 | ea2384d3 | bellard | |
630 | ea2384d3 | bellard | bs = bdrv_new("");
|
631 | ea2384d3 | bellard | if (!bs)
|
632 | ea2384d3 | bellard | error("Not enough memory");
|
633 | ea2384d3 | bellard | if (fmt) {
|
634 | ea2384d3 | bellard | drv = bdrv_find_format(fmt); |
635 | ea2384d3 | bellard | if (!drv)
|
636 | ea2384d3 | bellard | error("Unknown file format '%s'", fmt);
|
637 | ea2384d3 | bellard | } else {
|
638 | ea2384d3 | bellard | drv = NULL;
|
639 | ea2384d3 | bellard | } |
640 | ea2384d3 | bellard | if (bdrv_open2(bs, filename, 0, drv) < 0) { |
641 | ea2384d3 | bellard | error("Could not open '%s'", filename);
|
642 | ea2384d3 | bellard | } |
643 | ea2384d3 | bellard | bdrv_get_format(bs, fmt_name, sizeof(fmt_name));
|
644 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
645 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
646 | 57d1a2b6 | bellard | allocated_size = get_allocated_file_size(filename); |
647 | 57d1a2b6 | bellard | if (allocated_size < 0) |
648 | de167e41 | bellard | sprintf(dsize_buf, "unavailable");
|
649 | de167e41 | bellard | else
|
650 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
651 | de167e41 | bellard | allocated_size); |
652 | ea2384d3 | bellard | printf("image: %s\n"
|
653 | ea2384d3 | bellard | "file format: %s\n"
|
654 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
655 | ea2384d3 | bellard | "disk size: %s\n",
|
656 | 5fafdf24 | ths | filename, fmt_name, size_buf, |
657 | ec3757de | bellard | (total_sectors * 512),
|
658 | ea2384d3 | bellard | dsize_buf); |
659 | ea2384d3 | bellard | if (bdrv_is_encrypted(bs))
|
660 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
661 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
662 | 5fafdf24 | ths | if (bdi.cluster_size != 0) |
663 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
664 | faea38e7 | bellard | } |
665 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
666 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
667 | 93b6b2a3 | bellard | path_combine(backing_filename2, sizeof(backing_filename2),
|
668 | 93b6b2a3 | bellard | filename, backing_filename); |
669 | 5fafdf24 | ths | printf("backing file: %s (actual path: %s)\n",
|
670 | 93b6b2a3 | bellard | backing_filename, |
671 | 93b6b2a3 | bellard | backing_filename2); |
672 | faea38e7 | bellard | } |
673 | faea38e7 | bellard | dump_snapshots(bs); |
674 | ea2384d3 | bellard | bdrv_delete(bs); |
675 | ea2384d3 | bellard | return 0; |
676 | ea2384d3 | bellard | } |
677 | ea2384d3 | bellard | |
678 | ea2384d3 | bellard | int main(int argc, char **argv) |
679 | ea2384d3 | bellard | { |
680 | ea2384d3 | bellard | const char *cmd; |
681 | ea2384d3 | bellard | |
682 | ea2384d3 | bellard | bdrv_init(); |
683 | ea2384d3 | bellard | if (argc < 2) |
684 | ea2384d3 | bellard | help(); |
685 | ea2384d3 | bellard | cmd = argv[1];
|
686 | e3888186 | bellard | optind++; |
687 | ea2384d3 | bellard | if (!strcmp(cmd, "create")) { |
688 | ea2384d3 | bellard | img_create(argc, argv); |
689 | ea2384d3 | bellard | } else if (!strcmp(cmd, "commit")) { |
690 | ea2384d3 | bellard | img_commit(argc, argv); |
691 | ea2384d3 | bellard | } else if (!strcmp(cmd, "convert")) { |
692 | ea2384d3 | bellard | img_convert(argc, argv); |
693 | ea2384d3 | bellard | } else if (!strcmp(cmd, "info")) { |
694 | ea2384d3 | bellard | img_info(argc, argv); |
695 | ea2384d3 | bellard | } else {
|
696 | ea2384d3 | bellard | help(); |
697 | ea2384d3 | bellard | } |
698 | ea2384d3 | bellard | return 0; |
699 | ea2384d3 | bellard | } |