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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 | 9ea2ea71 | Kevin Wolf | #include "qemu-option.h" |
26 | 53f76e58 | Kevin Wolf | #include "qemu-error.h" |
27 | f7b4a940 | aliguori | #include "osdep.h" |
28 | dc786bc9 | Jes Sorensen | #include "sysemu.h" |
29 | ec36ba14 | ths | #include "block_int.h" |
30 | 9230eaf6 | aliguori | #include <stdio.h> |
31 | ea2384d3 | bellard | |
32 | e8445331 | bellard | #ifdef _WIN32
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33 | e8445331 | bellard | #include <windows.h> |
34 | e8445331 | bellard | #endif
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35 | e8445331 | bellard | |
36 | c227f099 | Anthony Liguori | typedef struct img_cmd_t { |
37 | 153859be | Stuart Brady | const char *name; |
38 | 153859be | Stuart Brady | int (*handler)(int argc, char **argv); |
39 | c227f099 | Anthony Liguori | } img_cmd_t; |
40 | 153859be | Stuart Brady | |
41 | 137519ce | aurel32 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */
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42 | adfe078e | Stefan Hajnoczi | #define BDRV_O_FLAGS BDRV_O_CACHE_WB
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43 | 661a0f71 | Federico Simoncelli | #define BDRV_DEFAULT_CACHE "writeback" |
44 | 137519ce | aurel32 | |
45 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
46 | ea2384d3 | bellard | { |
47 | ea2384d3 | bellard | printf(" %s", name);
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48 | ea2384d3 | bellard | } |
49 | ea2384d3 | bellard | |
50 | d2c639d6 | blueswir1 | /* Please keep in synch with qemu-img.texi */
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51 | 3f379ab1 | pbrook | static void help(void) |
52 | ea2384d3 | bellard | { |
53 | e00291c0 | Paolo Bonzini | const char *help_msg = |
54 | e00291c0 | Paolo Bonzini | "qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
55 | 3f020d70 | malc | "usage: qemu-img command [command options]\n"
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56 | 3f020d70 | malc | "QEMU disk image utility\n"
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57 | 3f020d70 | malc | "\n"
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58 | 3f020d70 | malc | "Command syntax:\n"
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59 | 153859be | Stuart Brady | #define DEF(option, callback, arg_string) \
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60 | 153859be | Stuart Brady | " " arg_string "\n" |
61 | 153859be | Stuart Brady | #include "qemu-img-cmds.h" |
62 | 153859be | Stuart Brady | #undef DEF
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63 | 153859be | Stuart Brady | #undef GEN_DOCS
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64 | 3f020d70 | malc | "\n"
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65 | 3f020d70 | malc | "Command parameters:\n"
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66 | 3f020d70 | malc | " 'filename' is a disk image filename\n"
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67 | 3f020d70 | malc | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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68 | 661a0f71 | Federico Simoncelli | " 'cache' is the cache mode used to write the output disk image, the valid\n"
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69 | 80ccf93b | Liu Yuan | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n"
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70 | 80ccf93b | Liu Yuan | " 'directsync' and 'unsafe' (default for convert)\n"
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71 | 3f020d70 | malc | " 'size' is the disk image size in bytes. Optional suffixes\n"
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72 | 3f020d70 | malc | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n"
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73 | 3f020d70 | malc | " and T (terabyte, 1024G) are supported. 'b' is ignored.\n"
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74 | 3f020d70 | malc | " 'output_filename' is the destination disk image filename\n"
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75 | 3f020d70 | malc | " 'output_fmt' is the destination format\n"
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76 | 3f020d70 | malc | " 'options' is a comma separated list of format specific options in a\n"
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77 | 3f020d70 | malc | " name=value format. Use -o ? for an overview of the options supported by the\n"
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78 | 3f020d70 | malc | " used format\n"
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79 | 3f020d70 | malc | " '-c' indicates that target image must be compressed (qcow format only)\n"
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80 | 3f020d70 | malc | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n"
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81 | 3f020d70 | malc | " match exactly. The image doesn't need a working backing file before\n"
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82 | 3f020d70 | malc | " rebasing in this case (useful for renaming the backing file)\n"
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83 | 3f020d70 | malc | " '-h' with or without a command shows this help and lists the supported formats\n"
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84 | 6b837bc4 | Jes Sorensen | " '-p' show progress of command (only certain commands)\n"
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85 | a22f123c | Kevin Wolf | " '-S' indicates the consecutive number of bytes that must contain only zeros\n"
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86 | a22f123c | Kevin Wolf | " for qemu-img to create a sparse image during conversion\n"
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87 | 3f020d70 | malc | "\n"
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88 | 4534ff54 | Kevin Wolf | "Parameters to check subcommand:\n"
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89 | 4534ff54 | Kevin Wolf | " '-r' tries to repair any inconsistencies that are found during the check.\n"
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90 | 4534ff54 | Kevin Wolf | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n"
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91 | 4534ff54 | Kevin Wolf | " kinds of errors, with a higher risk of choosing the wrong fix or\n"
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92 | 4534ff54 | Kevin Wolf | " hiding corruption that has already occured.\n"
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93 | 4534ff54 | Kevin Wolf | "\n"
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94 | 3f020d70 | malc | "Parameters to snapshot subcommand:\n"
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95 | 3f020d70 | malc | " 'snapshot' is the name of the snapshot to create, apply or delete\n"
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96 | 3f020d70 | malc | " '-a' applies a snapshot (revert disk to saved state)\n"
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97 | 3f020d70 | malc | " '-c' creates a snapshot\n"
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98 | 3f020d70 | malc | " '-d' deletes a snapshot\n"
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99 | e00291c0 | Paolo Bonzini | " '-l' lists all snapshots in the given image\n";
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100 | e00291c0 | Paolo Bonzini | |
101 | e00291c0 | Paolo Bonzini | printf("%s\nSupported formats:", help_msg);
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102 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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103 | ea2384d3 | bellard | printf("\n");
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104 | ea2384d3 | bellard | exit(1);
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105 | ea2384d3 | bellard | } |
106 | ea2384d3 | bellard | |
107 | ea2384d3 | bellard | #if defined(WIN32)
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108 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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109 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
110 | ea2384d3 | bellard | { |
111 | ea2384d3 | bellard | int c, i;
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112 | ea2384d3 | bellard | printf("Password: ");
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113 | ea2384d3 | bellard | fflush(stdout); |
114 | ea2384d3 | bellard | i = 0;
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115 | ea2384d3 | bellard | for(;;) {
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116 | ea2384d3 | bellard | c = getchar(); |
117 | ea2384d3 | bellard | if (c == '\n') |
118 | ea2384d3 | bellard | break;
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119 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
120 | ea2384d3 | bellard | buf[i++] = c; |
121 | ea2384d3 | bellard | } |
122 | ea2384d3 | bellard | buf[i] = '\0';
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123 | ea2384d3 | bellard | return 0; |
124 | ea2384d3 | bellard | } |
125 | ea2384d3 | bellard | |
126 | ea2384d3 | bellard | #else
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127 | ea2384d3 | bellard | |
128 | ea2384d3 | bellard | #include <termios.h> |
129 | ea2384d3 | bellard | |
130 | ea2384d3 | bellard | static struct termios oldtty; |
131 | ea2384d3 | bellard | |
132 | ea2384d3 | bellard | static void term_exit(void) |
133 | ea2384d3 | bellard | { |
134 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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135 | ea2384d3 | bellard | } |
136 | ea2384d3 | bellard | |
137 | ea2384d3 | bellard | static void term_init(void) |
138 | ea2384d3 | bellard | { |
139 | ea2384d3 | bellard | struct termios tty;
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140 | ea2384d3 | bellard | |
141 | ea2384d3 | bellard | tcgetattr (0, &tty);
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142 | ea2384d3 | bellard | oldtty = tty; |
143 | ea2384d3 | bellard | |
144 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
145 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
146 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
147 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
148 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
149 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
150 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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151 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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152 | 3b46e624 | ths | |
153 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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154 | ea2384d3 | bellard | |
155 | ea2384d3 | bellard | atexit(term_exit); |
156 | ea2384d3 | bellard | } |
157 | ea2384d3 | bellard | |
158 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
159 | ea2384d3 | bellard | { |
160 | ea2384d3 | bellard | uint8_t ch; |
161 | ea2384d3 | bellard | int i, ret;
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162 | ea2384d3 | bellard | |
163 | ea2384d3 | bellard | printf("password: ");
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164 | ea2384d3 | bellard | fflush(stdout); |
165 | ea2384d3 | bellard | term_init(); |
166 | ea2384d3 | bellard | i = 0;
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167 | ea2384d3 | bellard | for(;;) {
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168 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
169 | ea2384d3 | bellard | if (ret == -1) { |
170 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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171 | ea2384d3 | bellard | continue;
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172 | ea2384d3 | bellard | } else {
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173 | ea2384d3 | bellard | ret = -1;
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174 | ea2384d3 | bellard | break;
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175 | ea2384d3 | bellard | } |
176 | ea2384d3 | bellard | } else if (ret == 0) { |
177 | ea2384d3 | bellard | ret = -1;
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178 | ea2384d3 | bellard | break;
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179 | ea2384d3 | bellard | } else {
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180 | ea2384d3 | bellard | if (ch == '\r') { |
181 | ea2384d3 | bellard | ret = 0;
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182 | ea2384d3 | bellard | break;
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183 | ea2384d3 | bellard | } |
184 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
185 | ea2384d3 | bellard | buf[i++] = ch; |
186 | ea2384d3 | bellard | } |
187 | ea2384d3 | bellard | } |
188 | ea2384d3 | bellard | term_exit(); |
189 | ea2384d3 | bellard | buf[i] = '\0';
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190 | ea2384d3 | bellard | printf("\n");
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191 | ea2384d3 | bellard | return ret;
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192 | ea2384d3 | bellard | } |
193 | ea2384d3 | bellard | #endif
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194 | ea2384d3 | bellard | |
195 | 4ac8aacd | Jes Sorensen | static int print_block_option_help(const char *filename, const char *fmt) |
196 | 4ac8aacd | Jes Sorensen | { |
197 | 4ac8aacd | Jes Sorensen | BlockDriver *drv, *proto_drv; |
198 | 4ac8aacd | Jes Sorensen | QEMUOptionParameter *create_options = NULL;
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199 | 4ac8aacd | Jes Sorensen | |
200 | 4ac8aacd | Jes Sorensen | /* Find driver and parse its options */
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201 | 4ac8aacd | Jes Sorensen | drv = bdrv_find_format(fmt); |
202 | 4ac8aacd | Jes Sorensen | if (!drv) {
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203 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", fmt);
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204 | 4ac8aacd | Jes Sorensen | return 1; |
205 | 4ac8aacd | Jes Sorensen | } |
206 | 4ac8aacd | Jes Sorensen | |
207 | 4ac8aacd | Jes Sorensen | proto_drv = bdrv_find_protocol(filename); |
208 | 4ac8aacd | Jes Sorensen | if (!proto_drv) {
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209 | 15654a6d | Jes Sorensen | error_report("Unknown protocol '%s'", filename);
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210 | 4ac8aacd | Jes Sorensen | return 1; |
211 | 4ac8aacd | Jes Sorensen | } |
212 | 4ac8aacd | Jes Sorensen | |
213 | 4ac8aacd | Jes Sorensen | create_options = append_option_parameters(create_options, |
214 | 4ac8aacd | Jes Sorensen | drv->create_options); |
215 | 4ac8aacd | Jes Sorensen | create_options = append_option_parameters(create_options, |
216 | 4ac8aacd | Jes Sorensen | proto_drv->create_options); |
217 | 4ac8aacd | Jes Sorensen | print_option_help(create_options); |
218 | 4ac8aacd | Jes Sorensen | free_option_parameters(create_options); |
219 | 4ac8aacd | Jes Sorensen | return 0; |
220 | 4ac8aacd | Jes Sorensen | } |
221 | 4ac8aacd | Jes Sorensen | |
222 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
223 | 9bc378c1 | Sheng Yang | const char *fmt, |
224 | f163d073 | Stefan Hajnoczi | int flags)
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225 | 75c23805 | bellard | { |
226 | 75c23805 | bellard | BlockDriverState *bs; |
227 | 75c23805 | bellard | BlockDriver *drv; |
228 | 75c23805 | bellard | char password[256]; |
229 | b9eaf9ec | Kevin Wolf | int ret;
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230 | 75c23805 | bellard | |
231 | b9eaf9ec | Kevin Wolf | bs = bdrv_new("image");
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232 | ad717139 | Kevin Wolf | |
233 | 75c23805 | bellard | if (fmt) {
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234 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
235 | c2abccec | MORITA Kazutaka | if (!drv) {
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236 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", fmt);
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237 | c2abccec | MORITA Kazutaka | goto fail;
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238 | c2abccec | MORITA Kazutaka | } |
239 | 75c23805 | bellard | } else {
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240 | 75c23805 | bellard | drv = NULL;
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241 | 75c23805 | bellard | } |
242 | b9eaf9ec | Kevin Wolf | |
243 | b9eaf9ec | Kevin Wolf | ret = bdrv_open(bs, filename, flags, drv); |
244 | b9eaf9ec | Kevin Wolf | if (ret < 0) { |
245 | b9eaf9ec | Kevin Wolf | error_report("Could not open '%s': %s", filename, strerror(-ret));
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246 | c2abccec | MORITA Kazutaka | goto fail;
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247 | 75c23805 | bellard | } |
248 | b9eaf9ec | Kevin Wolf | |
249 | 75c23805 | bellard | if (bdrv_is_encrypted(bs)) {
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250 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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251 | c2abccec | MORITA Kazutaka | if (read_password(password, sizeof(password)) < 0) { |
252 | 15654a6d | Jes Sorensen | error_report("No password given");
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253 | c2abccec | MORITA Kazutaka | goto fail;
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254 | c2abccec | MORITA Kazutaka | } |
255 | c2abccec | MORITA Kazutaka | if (bdrv_set_key(bs, password) < 0) { |
256 | 15654a6d | Jes Sorensen | error_report("invalid password");
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257 | c2abccec | MORITA Kazutaka | goto fail;
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258 | c2abccec | MORITA Kazutaka | } |
259 | 75c23805 | bellard | } |
260 | 75c23805 | bellard | return bs;
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261 | c2abccec | MORITA Kazutaka | fail:
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262 | c2abccec | MORITA Kazutaka | if (bs) {
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263 | c2abccec | MORITA Kazutaka | bdrv_delete(bs); |
264 | c2abccec | MORITA Kazutaka | } |
265 | c2abccec | MORITA Kazutaka | return NULL; |
266 | 75c23805 | bellard | } |
267 | 75c23805 | bellard | |
268 | c2abccec | MORITA Kazutaka | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
269 | eec77d9e | Jes Sorensen | const char *base_filename, |
270 | eec77d9e | Jes Sorensen | const char *base_fmt) |
271 | efa84d43 | Kevin Wolf | { |
272 | efa84d43 | Kevin Wolf | if (base_filename) {
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273 | efa84d43 | Kevin Wolf | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) {
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274 | 15654a6d | Jes Sorensen | error_report("Backing file not supported for file format '%s'",
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275 | 15654a6d | Jes Sorensen | fmt); |
276 | c2abccec | MORITA Kazutaka | return -1; |
277 | efa84d43 | Kevin Wolf | } |
278 | efa84d43 | Kevin Wolf | } |
279 | efa84d43 | Kevin Wolf | if (base_fmt) {
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280 | efa84d43 | Kevin Wolf | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) {
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281 | 15654a6d | Jes Sorensen | error_report("Backing file format not supported for file "
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282 | 15654a6d | Jes Sorensen | "format '%s'", fmt);
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283 | c2abccec | MORITA Kazutaka | return -1; |
284 | efa84d43 | Kevin Wolf | } |
285 | efa84d43 | Kevin Wolf | } |
286 | c2abccec | MORITA Kazutaka | return 0; |
287 | efa84d43 | Kevin Wolf | } |
288 | efa84d43 | Kevin Wolf | |
289 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
290 | ea2384d3 | bellard | { |
291 | eec77d9e | Jes Sorensen | int c, ret = 0; |
292 | 1da7cfbd | Jes Sorensen | uint64_t img_size = -1;
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293 | ea2384d3 | bellard | const char *fmt = "raw"; |
294 | 9230eaf6 | aliguori | const char *base_fmt = NULL; |
295 | ea2384d3 | bellard | const char *filename; |
296 | ea2384d3 | bellard | const char *base_filename = NULL; |
297 | 9ea2ea71 | Kevin Wolf | char *options = NULL; |
298 | 3b46e624 | ths | |
299 | ea2384d3 | bellard | for(;;) {
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300 | 9ea2ea71 | Kevin Wolf | c = getopt(argc, argv, "F:b:f:he6o:");
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301 | b8fb60da | Jes Sorensen | if (c == -1) { |
302 | ea2384d3 | bellard | break;
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303 | b8fb60da | Jes Sorensen | } |
304 | ea2384d3 | bellard | switch(c) {
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305 | ef87394c | Jes Sorensen | case '?': |
306 | ea2384d3 | bellard | case 'h': |
307 | ea2384d3 | bellard | help(); |
308 | ea2384d3 | bellard | break;
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309 | 9230eaf6 | aliguori | case 'F': |
310 | 9230eaf6 | aliguori | base_fmt = optarg; |
311 | 9230eaf6 | aliguori | break;
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312 | ea2384d3 | bellard | case 'b': |
313 | ea2384d3 | bellard | base_filename = optarg; |
314 | ea2384d3 | bellard | break;
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315 | ea2384d3 | bellard | case 'f': |
316 | ea2384d3 | bellard | fmt = optarg; |
317 | ea2384d3 | bellard | break;
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318 | ea2384d3 | bellard | case 'e': |
319 | 9d42e15d | Markus Armbruster | error_report("option -e is deprecated, please use \'-o "
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320 | eec77d9e | Jes Sorensen | "encryption\' instead!");
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321 | eec77d9e | Jes Sorensen | return 1; |
322 | d8871c5a | ths | case '6': |
323 | 9d42e15d | Markus Armbruster | error_report("option -6 is deprecated, please use \'-o "
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324 | eec77d9e | Jes Sorensen | "compat6\' instead!");
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325 | eec77d9e | Jes Sorensen | return 1; |
326 | 9ea2ea71 | Kevin Wolf | case 'o': |
327 | 9ea2ea71 | Kevin Wolf | options = optarg; |
328 | 9ea2ea71 | Kevin Wolf | break;
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329 | ea2384d3 | bellard | } |
330 | ea2384d3 | bellard | } |
331 | 9230eaf6 | aliguori | |
332 | b50cbabc | MORITA Kazutaka | /* Get the filename */
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333 | b8fb60da | Jes Sorensen | if (optind >= argc) {
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334 | b50cbabc | MORITA Kazutaka | help(); |
335 | b8fb60da | Jes Sorensen | } |
336 | b50cbabc | MORITA Kazutaka | filename = argv[optind++]; |
337 | b50cbabc | MORITA Kazutaka | |
338 | 1da7cfbd | Jes Sorensen | /* Get image size, if specified */
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339 | 1da7cfbd | Jes Sorensen | if (optind < argc) {
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340 | 70b4f4bb | Jes Sorensen | int64_t sval; |
341 | e36b3695 | Markus Armbruster | char *end;
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342 | e36b3695 | Markus Armbruster | sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B); |
343 | e36b3695 | Markus Armbruster | if (sval < 0 || *end) { |
344 | 15654a6d | Jes Sorensen | error_report("Invalid image size specified! You may use k, M, G or "
|
345 | 1da7cfbd | Jes Sorensen | "T suffixes for ");
|
346 | 15654a6d | Jes Sorensen | error_report("kilobytes, megabytes, gigabytes and terabytes.");
|
347 | 1da7cfbd | Jes Sorensen | ret = -1;
|
348 | 1da7cfbd | Jes Sorensen | goto out;
|
349 | 1da7cfbd | Jes Sorensen | } |
350 | 1da7cfbd | Jes Sorensen | img_size = (uint64_t)sval; |
351 | 1da7cfbd | Jes Sorensen | } |
352 | 1da7cfbd | Jes Sorensen | |
353 | c8057f95 | Peter Maydell | if (options && is_help_option(options)) {
|
354 | 4ac8aacd | Jes Sorensen | ret = print_block_option_help(filename, fmt); |
355 | 4ac8aacd | Jes Sorensen | goto out;
|
356 | 4ac8aacd | Jes Sorensen | } |
357 | 4ac8aacd | Jes Sorensen | |
358 | f88e1a42 | Jes Sorensen | ret = bdrv_img_create(filename, fmt, base_filename, base_fmt, |
359 | f88e1a42 | Jes Sorensen | options, img_size, BDRV_O_FLAGS); |
360 | c2abccec | MORITA Kazutaka | out:
|
361 | c2abccec | MORITA Kazutaka | if (ret) {
|
362 | c2abccec | MORITA Kazutaka | return 1; |
363 | c2abccec | MORITA Kazutaka | } |
364 | ea2384d3 | bellard | return 0; |
365 | ea2384d3 | bellard | } |
366 | ea2384d3 | bellard | |
367 | e076f338 | Kevin Wolf | /*
|
368 | e076f338 | Kevin Wolf | * Checks an image for consistency. Exit codes:
|
369 | e076f338 | Kevin Wolf | *
|
370 | e076f338 | Kevin Wolf | * 0 - Check completed, image is good
|
371 | e076f338 | Kevin Wolf | * 1 - Check not completed because of internal errors
|
372 | e076f338 | Kevin Wolf | * 2 - Check completed, image is corrupted
|
373 | e076f338 | Kevin Wolf | * 3 - Check completed, image has leaked clusters, but is good otherwise
|
374 | e076f338 | Kevin Wolf | */
|
375 | 1585969c | aliguori | static int img_check(int argc, char **argv) |
376 | 1585969c | aliguori | { |
377 | 1585969c | aliguori | int c, ret;
|
378 | 1585969c | aliguori | const char *filename, *fmt; |
379 | 1585969c | aliguori | BlockDriverState *bs; |
380 | e076f338 | Kevin Wolf | BdrvCheckResult result; |
381 | 4534ff54 | Kevin Wolf | int fix = 0; |
382 | 4534ff54 | Kevin Wolf | int flags = BDRV_O_FLAGS;
|
383 | 1585969c | aliguori | |
384 | 1585969c | aliguori | fmt = NULL;
|
385 | 1585969c | aliguori | for(;;) {
|
386 | 4534ff54 | Kevin Wolf | c = getopt(argc, argv, "f:hr:");
|
387 | b8fb60da | Jes Sorensen | if (c == -1) { |
388 | 1585969c | aliguori | break;
|
389 | b8fb60da | Jes Sorensen | } |
390 | 1585969c | aliguori | switch(c) {
|
391 | ef87394c | Jes Sorensen | case '?': |
392 | 1585969c | aliguori | case 'h': |
393 | 1585969c | aliguori | help(); |
394 | 1585969c | aliguori | break;
|
395 | 1585969c | aliguori | case 'f': |
396 | 1585969c | aliguori | fmt = optarg; |
397 | 1585969c | aliguori | break;
|
398 | 4534ff54 | Kevin Wolf | case 'r': |
399 | 4534ff54 | Kevin Wolf | flags |= BDRV_O_RDWR; |
400 | 4534ff54 | Kevin Wolf | |
401 | 4534ff54 | Kevin Wolf | if (!strcmp(optarg, "leaks")) { |
402 | 4534ff54 | Kevin Wolf | fix = BDRV_FIX_LEAKS; |
403 | 4534ff54 | Kevin Wolf | } else if (!strcmp(optarg, "all")) { |
404 | 4534ff54 | Kevin Wolf | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; |
405 | 4534ff54 | Kevin Wolf | } else {
|
406 | 4534ff54 | Kevin Wolf | help(); |
407 | 4534ff54 | Kevin Wolf | } |
408 | 4534ff54 | Kevin Wolf | break;
|
409 | 1585969c | aliguori | } |
410 | 1585969c | aliguori | } |
411 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
412 | 1585969c | aliguori | help(); |
413 | b8fb60da | Jes Sorensen | } |
414 | 1585969c | aliguori | filename = argv[optind++]; |
415 | 1585969c | aliguori | |
416 | 4534ff54 | Kevin Wolf | bs = bdrv_new_open(filename, fmt, flags); |
417 | c2abccec | MORITA Kazutaka | if (!bs) {
|
418 | c2abccec | MORITA Kazutaka | return 1; |
419 | c2abccec | MORITA Kazutaka | } |
420 | 4534ff54 | Kevin Wolf | ret = bdrv_check(bs, &result, fix); |
421 | e076f338 | Kevin Wolf | |
422 | e076f338 | Kevin Wolf | if (ret == -ENOTSUP) {
|
423 | 15654a6d | Jes Sorensen | error_report("This image format does not support checks");
|
424 | e076f338 | Kevin Wolf | bdrv_delete(bs); |
425 | e076f338 | Kevin Wolf | return 1; |
426 | e076f338 | Kevin Wolf | } |
427 | e076f338 | Kevin Wolf | |
428 | ccf34716 | Kevin Wolf | if (result.corruptions_fixed || result.leaks_fixed) {
|
429 | ccf34716 | Kevin Wolf | printf("The following inconsistencies were found and repaired:\n\n"
|
430 | ccf34716 | Kevin Wolf | " %d leaked clusters\n"
|
431 | ccf34716 | Kevin Wolf | " %d corruptions\n\n"
|
432 | ccf34716 | Kevin Wolf | "Double checking the fixed image now...\n",
|
433 | ccf34716 | Kevin Wolf | result.leaks_fixed, |
434 | ccf34716 | Kevin Wolf | result.corruptions_fixed); |
435 | ccf34716 | Kevin Wolf | ret = bdrv_check(bs, &result, 0);
|
436 | ccf34716 | Kevin Wolf | } |
437 | ccf34716 | Kevin Wolf | |
438 | e076f338 | Kevin Wolf | if (!(result.corruptions || result.leaks || result.check_errors)) {
|
439 | e076f338 | Kevin Wolf | printf("No errors were found on the image.\n");
|
440 | e076f338 | Kevin Wolf | } else {
|
441 | e076f338 | Kevin Wolf | if (result.corruptions) {
|
442 | e076f338 | Kevin Wolf | printf("\n%d errors were found on the image.\n"
|
443 | e076f338 | Kevin Wolf | "Data may be corrupted, or further writes to the image "
|
444 | e076f338 | Kevin Wolf | "may corrupt it.\n",
|
445 | e076f338 | Kevin Wolf | result.corruptions); |
446 | e076f338 | Kevin Wolf | } |
447 | e076f338 | Kevin Wolf | |
448 | e076f338 | Kevin Wolf | if (result.leaks) {
|
449 | e076f338 | Kevin Wolf | printf("\n%d leaked clusters were found on the image.\n"
|
450 | e076f338 | Kevin Wolf | "This means waste of disk space, but no harm to data.\n",
|
451 | e076f338 | Kevin Wolf | result.leaks); |
452 | e076f338 | Kevin Wolf | } |
453 | e076f338 | Kevin Wolf | |
454 | e076f338 | Kevin Wolf | if (result.check_errors) {
|
455 | e076f338 | Kevin Wolf | printf("\n%d internal errors have occurred during the check.\n",
|
456 | e076f338 | Kevin Wolf | result.check_errors); |
457 | 1585969c | aliguori | } |
458 | 1585969c | aliguori | } |
459 | 1585969c | aliguori | |
460 | f8111c24 | Dong Xu Wang | if (result.bfi.total_clusters != 0 && result.bfi.allocated_clusters != 0) { |
461 | f8111c24 | Dong Xu Wang | printf("%" PRId64 "/%" PRId64 "= %0.2f%% allocated, %0.2f%% fragmented\n", |
462 | f8111c24 | Dong Xu Wang | result.bfi.allocated_clusters, result.bfi.total_clusters, |
463 | f8111c24 | Dong Xu Wang | result.bfi.allocated_clusters * 100.0 / result.bfi.total_clusters, |
464 | f8111c24 | Dong Xu Wang | result.bfi.fragmented_clusters * 100.0 / result.bfi.allocated_clusters); |
465 | f8111c24 | Dong Xu Wang | } |
466 | f8111c24 | Dong Xu Wang | |
467 | 1585969c | aliguori | bdrv_delete(bs); |
468 | e076f338 | Kevin Wolf | |
469 | e076f338 | Kevin Wolf | if (ret < 0 || result.check_errors) { |
470 | e076f338 | Kevin Wolf | printf("\nAn error has occurred during the check: %s\n"
|
471 | e076f338 | Kevin Wolf | "The check is not complete and may have missed error.\n",
|
472 | e076f338 | Kevin Wolf | strerror(-ret)); |
473 | c2abccec | MORITA Kazutaka | return 1; |
474 | c2abccec | MORITA Kazutaka | } |
475 | e076f338 | Kevin Wolf | |
476 | e076f338 | Kevin Wolf | if (result.corruptions) {
|
477 | e076f338 | Kevin Wolf | return 2; |
478 | e076f338 | Kevin Wolf | } else if (result.leaks) { |
479 | e076f338 | Kevin Wolf | return 3; |
480 | e076f338 | Kevin Wolf | } else {
|
481 | e076f338 | Kevin Wolf | return 0; |
482 | e076f338 | Kevin Wolf | } |
483 | 1585969c | aliguori | } |
484 | 1585969c | aliguori | |
485 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
486 | ea2384d3 | bellard | { |
487 | 661a0f71 | Federico Simoncelli | int c, ret, flags;
|
488 | 661a0f71 | Federico Simoncelli | const char *filename, *fmt, *cache; |
489 | ea2384d3 | bellard | BlockDriverState *bs; |
490 | ea2384d3 | bellard | |
491 | ea2384d3 | bellard | fmt = NULL;
|
492 | 661a0f71 | Federico Simoncelli | cache = BDRV_DEFAULT_CACHE; |
493 | ea2384d3 | bellard | for(;;) {
|
494 | 661a0f71 | Federico Simoncelli | c = getopt(argc, argv, "f:ht:");
|
495 | b8fb60da | Jes Sorensen | if (c == -1) { |
496 | ea2384d3 | bellard | break;
|
497 | b8fb60da | Jes Sorensen | } |
498 | ea2384d3 | bellard | switch(c) {
|
499 | ef87394c | Jes Sorensen | case '?': |
500 | ea2384d3 | bellard | case 'h': |
501 | ea2384d3 | bellard | help(); |
502 | ea2384d3 | bellard | break;
|
503 | ea2384d3 | bellard | case 'f': |
504 | ea2384d3 | bellard | fmt = optarg; |
505 | ea2384d3 | bellard | break;
|
506 | 661a0f71 | Federico Simoncelli | case 't': |
507 | 661a0f71 | Federico Simoncelli | cache = optarg; |
508 | 661a0f71 | Federico Simoncelli | break;
|
509 | ea2384d3 | bellard | } |
510 | ea2384d3 | bellard | } |
511 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
512 | ea2384d3 | bellard | help(); |
513 | b8fb60da | Jes Sorensen | } |
514 | ea2384d3 | bellard | filename = argv[optind++]; |
515 | ea2384d3 | bellard | |
516 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR; |
517 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
518 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
519 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
520 | 661a0f71 | Federico Simoncelli | return -1; |
521 | 661a0f71 | Federico Simoncelli | } |
522 | 661a0f71 | Federico Simoncelli | |
523 | 661a0f71 | Federico Simoncelli | bs = bdrv_new_open(filename, fmt, flags); |
524 | c2abccec | MORITA Kazutaka | if (!bs) {
|
525 | c2abccec | MORITA Kazutaka | return 1; |
526 | c2abccec | MORITA Kazutaka | } |
527 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
528 | ea2384d3 | bellard | switch(ret) {
|
529 | ea2384d3 | bellard | case 0: |
530 | ea2384d3 | bellard | printf("Image committed.\n");
|
531 | ea2384d3 | bellard | break;
|
532 | ea2384d3 | bellard | case -ENOENT:
|
533 | 15654a6d | Jes Sorensen | error_report("No disk inserted");
|
534 | ea2384d3 | bellard | break;
|
535 | ea2384d3 | bellard | case -EACCES:
|
536 | 15654a6d | Jes Sorensen | error_report("Image is read-only");
|
537 | ea2384d3 | bellard | break;
|
538 | ea2384d3 | bellard | case -ENOTSUP:
|
539 | 15654a6d | Jes Sorensen | error_report("Image is already committed");
|
540 | ea2384d3 | bellard | break;
|
541 | ea2384d3 | bellard | default:
|
542 | 15654a6d | Jes Sorensen | error_report("Error while committing image");
|
543 | ea2384d3 | bellard | break;
|
544 | ea2384d3 | bellard | } |
545 | ea2384d3 | bellard | |
546 | ea2384d3 | bellard | bdrv_delete(bs); |
547 | c2abccec | MORITA Kazutaka | if (ret) {
|
548 | c2abccec | MORITA Kazutaka | return 1; |
549 | c2abccec | MORITA Kazutaka | } |
550 | ea2384d3 | bellard | return 0; |
551 | ea2384d3 | bellard | } |
552 | ea2384d3 | bellard | |
553 | f6a00aa1 | Dmitry Konishchev | /*
|
554 | f58c7b35 | ths | * Returns true iff the first sector pointed to by 'buf' contains at least
|
555 | f58c7b35 | ths | * a non-NUL byte.
|
556 | f58c7b35 | ths | *
|
557 | f58c7b35 | ths | * 'pnum' is set to the number of sectors (including and immediately following
|
558 | f58c7b35 | ths | * the first one) that are known to be in the same allocated/unallocated state.
|
559 | f58c7b35 | ths | */
|
560 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
561 | ea2384d3 | bellard | { |
562 | 1a6d39fd | Stefan Hajnoczi | bool is_zero;
|
563 | 1a6d39fd | Stefan Hajnoczi | int i;
|
564 | ea2384d3 | bellard | |
565 | ea2384d3 | bellard | if (n <= 0) { |
566 | ea2384d3 | bellard | *pnum = 0;
|
567 | ea2384d3 | bellard | return 0; |
568 | ea2384d3 | bellard | } |
569 | 1a6d39fd | Stefan Hajnoczi | is_zero = buffer_is_zero(buf, 512);
|
570 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
571 | ea2384d3 | bellard | buf += 512;
|
572 | 1a6d39fd | Stefan Hajnoczi | if (is_zero != buffer_is_zero(buf, 512)) { |
573 | ea2384d3 | bellard | break;
|
574 | 1a6d39fd | Stefan Hajnoczi | } |
575 | ea2384d3 | bellard | } |
576 | ea2384d3 | bellard | *pnum = i; |
577 | 1a6d39fd | Stefan Hajnoczi | return !is_zero;
|
578 | ea2384d3 | bellard | } |
579 | ea2384d3 | bellard | |
580 | 3e85c6fd | Kevin Wolf | /*
|
581 | a22f123c | Kevin Wolf | * Like is_allocated_sectors, but if the buffer starts with a used sector,
|
582 | a22f123c | Kevin Wolf | * up to 'min' consecutive sectors containing zeros are ignored. This avoids
|
583 | a22f123c | Kevin Wolf | * breaking up write requests for only small sparse areas.
|
584 | a22f123c | Kevin Wolf | */
|
585 | a22f123c | Kevin Wolf | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, |
586 | a22f123c | Kevin Wolf | int min)
|
587 | a22f123c | Kevin Wolf | { |
588 | a22f123c | Kevin Wolf | int ret;
|
589 | a22f123c | Kevin Wolf | int num_checked, num_used;
|
590 | a22f123c | Kevin Wolf | |
591 | a22f123c | Kevin Wolf | if (n < min) {
|
592 | a22f123c | Kevin Wolf | min = n; |
593 | a22f123c | Kevin Wolf | } |
594 | a22f123c | Kevin Wolf | |
595 | a22f123c | Kevin Wolf | ret = is_allocated_sectors(buf, n, pnum); |
596 | a22f123c | Kevin Wolf | if (!ret) {
|
597 | a22f123c | Kevin Wolf | return ret;
|
598 | a22f123c | Kevin Wolf | } |
599 | a22f123c | Kevin Wolf | |
600 | a22f123c | Kevin Wolf | num_used = *pnum; |
601 | a22f123c | Kevin Wolf | buf += BDRV_SECTOR_SIZE * *pnum; |
602 | a22f123c | Kevin Wolf | n -= *pnum; |
603 | a22f123c | Kevin Wolf | num_checked = num_used; |
604 | a22f123c | Kevin Wolf | |
605 | a22f123c | Kevin Wolf | while (n > 0) { |
606 | a22f123c | Kevin Wolf | ret = is_allocated_sectors(buf, n, pnum); |
607 | a22f123c | Kevin Wolf | |
608 | a22f123c | Kevin Wolf | buf += BDRV_SECTOR_SIZE * *pnum; |
609 | a22f123c | Kevin Wolf | n -= *pnum; |
610 | a22f123c | Kevin Wolf | num_checked += *pnum; |
611 | a22f123c | Kevin Wolf | if (ret) {
|
612 | a22f123c | Kevin Wolf | num_used = num_checked; |
613 | a22f123c | Kevin Wolf | } else if (*pnum >= min) { |
614 | a22f123c | Kevin Wolf | break;
|
615 | a22f123c | Kevin Wolf | } |
616 | a22f123c | Kevin Wolf | } |
617 | a22f123c | Kevin Wolf | |
618 | a22f123c | Kevin Wolf | *pnum = num_used; |
619 | a22f123c | Kevin Wolf | return 1; |
620 | a22f123c | Kevin Wolf | } |
621 | a22f123c | Kevin Wolf | |
622 | a22f123c | Kevin Wolf | /*
|
623 | 3e85c6fd | Kevin Wolf | * Compares two buffers sector by sector. Returns 0 if the first sector of both
|
624 | 3e85c6fd | Kevin Wolf | * buffers matches, non-zero otherwise.
|
625 | 3e85c6fd | Kevin Wolf | *
|
626 | 3e85c6fd | Kevin Wolf | * pnum is set to the number of sectors (including and immediately following
|
627 | 3e85c6fd | Kevin Wolf | * the first one) that are known to have the same comparison result
|
628 | 3e85c6fd | Kevin Wolf | */
|
629 | 3e85c6fd | Kevin Wolf | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
630 | 3e85c6fd | Kevin Wolf | int *pnum)
|
631 | 3e85c6fd | Kevin Wolf | { |
632 | 3e85c6fd | Kevin Wolf | int res, i;
|
633 | 3e85c6fd | Kevin Wolf | |
634 | 3e85c6fd | Kevin Wolf | if (n <= 0) { |
635 | 3e85c6fd | Kevin Wolf | *pnum = 0;
|
636 | 3e85c6fd | Kevin Wolf | return 0; |
637 | 3e85c6fd | Kevin Wolf | } |
638 | 3e85c6fd | Kevin Wolf | |
639 | 3e85c6fd | Kevin Wolf | res = !!memcmp(buf1, buf2, 512);
|
640 | 3e85c6fd | Kevin Wolf | for(i = 1; i < n; i++) { |
641 | 3e85c6fd | Kevin Wolf | buf1 += 512;
|
642 | 3e85c6fd | Kevin Wolf | buf2 += 512;
|
643 | 3e85c6fd | Kevin Wolf | |
644 | 3e85c6fd | Kevin Wolf | if (!!memcmp(buf1, buf2, 512) != res) { |
645 | 3e85c6fd | Kevin Wolf | break;
|
646 | 3e85c6fd | Kevin Wolf | } |
647 | 3e85c6fd | Kevin Wolf | } |
648 | 3e85c6fd | Kevin Wolf | |
649 | 3e85c6fd | Kevin Wolf | *pnum = i; |
650 | 3e85c6fd | Kevin Wolf | return res;
|
651 | 3e85c6fd | Kevin Wolf | } |
652 | 3e85c6fd | Kevin Wolf | |
653 | 80ee15a6 | Kevin Wolf | #define IO_BUF_SIZE (2 * 1024 * 1024) |
654 | ea2384d3 | bellard | |
655 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
656 | ea2384d3 | bellard | { |
657 | eec77d9e | Jes Sorensen | int c, ret = 0, n, n1, bs_n, bs_i, compress, cluster_size, cluster_sectors; |
658 | 661a0f71 | Federico Simoncelli | int progress = 0, flags; |
659 | 661a0f71 | Federico Simoncelli | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
660 | b50cbabc | MORITA Kazutaka | BlockDriver *drv, *proto_drv; |
661 | c2abccec | MORITA Kazutaka | BlockDriverState **bs = NULL, *out_bs = NULL; |
662 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
663 | 96b8f136 | ths | uint64_t bs_sectors; |
664 | c2abccec | MORITA Kazutaka | uint8_t * buf = NULL;
|
665 | ea2384d3 | bellard | const uint8_t *buf1;
|
666 | faea38e7 | bellard | BlockDriverInfo bdi; |
667 | b50cbabc | MORITA Kazutaka | QEMUOptionParameter *param = NULL, *create_options = NULL; |
668 | a18953fb | Kevin Wolf | QEMUOptionParameter *out_baseimg_param; |
669 | efa84d43 | Kevin Wolf | char *options = NULL; |
670 | 51ef6727 | edison | const char *snapshot_name = NULL; |
671 | 6b837bc4 | Jes Sorensen | float local_progress;
|
672 | a22f123c | Kevin Wolf | int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ |
673 | ea2384d3 | bellard | |
674 | ea2384d3 | bellard | fmt = NULL;
|
675 | ea2384d3 | bellard | out_fmt = "raw";
|
676 | 661a0f71 | Federico Simoncelli | cache = "unsafe";
|
677 | f58c7b35 | ths | out_baseimg = NULL;
|
678 | eec77d9e | Jes Sorensen | compress = 0;
|
679 | ea2384d3 | bellard | for(;;) {
|
680 | a22f123c | Kevin Wolf | c = getopt(argc, argv, "f:O:B:s:hce6o:pS:t:");
|
681 | b8fb60da | Jes Sorensen | if (c == -1) { |
682 | ea2384d3 | bellard | break;
|
683 | b8fb60da | Jes Sorensen | } |
684 | ea2384d3 | bellard | switch(c) {
|
685 | ef87394c | Jes Sorensen | case '?': |
686 | ea2384d3 | bellard | case 'h': |
687 | ea2384d3 | bellard | help(); |
688 | ea2384d3 | bellard | break;
|
689 | ea2384d3 | bellard | case 'f': |
690 | ea2384d3 | bellard | fmt = optarg; |
691 | ea2384d3 | bellard | break;
|
692 | ea2384d3 | bellard | case 'O': |
693 | ea2384d3 | bellard | out_fmt = optarg; |
694 | ea2384d3 | bellard | break;
|
695 | f58c7b35 | ths | case 'B': |
696 | f58c7b35 | ths | out_baseimg = optarg; |
697 | f58c7b35 | ths | break;
|
698 | ea2384d3 | bellard | case 'c': |
699 | eec77d9e | Jes Sorensen | compress = 1;
|
700 | ea2384d3 | bellard | break;
|
701 | ea2384d3 | bellard | case 'e': |
702 | 9d42e15d | Markus Armbruster | error_report("option -e is deprecated, please use \'-o "
|
703 | eec77d9e | Jes Sorensen | "encryption\' instead!");
|
704 | eec77d9e | Jes Sorensen | return 1; |
705 | ec36ba14 | ths | case '6': |
706 | 9d42e15d | Markus Armbruster | error_report("option -6 is deprecated, please use \'-o "
|
707 | eec77d9e | Jes Sorensen | "compat6\' instead!");
|
708 | eec77d9e | Jes Sorensen | return 1; |
709 | efa84d43 | Kevin Wolf | case 'o': |
710 | efa84d43 | Kevin Wolf | options = optarg; |
711 | efa84d43 | Kevin Wolf | break;
|
712 | 51ef6727 | edison | case 's': |
713 | 51ef6727 | edison | snapshot_name = optarg; |
714 | 51ef6727 | edison | break;
|
715 | a22f123c | Kevin Wolf | case 'S': |
716 | a22f123c | Kevin Wolf | { |
717 | a22f123c | Kevin Wolf | int64_t sval; |
718 | e36b3695 | Markus Armbruster | char *end;
|
719 | e36b3695 | Markus Armbruster | sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B); |
720 | e36b3695 | Markus Armbruster | if (sval < 0 || *end) { |
721 | a22f123c | Kevin Wolf | error_report("Invalid minimum zero buffer size for sparse output specified");
|
722 | a22f123c | Kevin Wolf | return 1; |
723 | a22f123c | Kevin Wolf | } |
724 | a22f123c | Kevin Wolf | |
725 | a22f123c | Kevin Wolf | min_sparse = sval / BDRV_SECTOR_SIZE; |
726 | a22f123c | Kevin Wolf | break;
|
727 | a22f123c | Kevin Wolf | } |
728 | 6b837bc4 | Jes Sorensen | case 'p': |
729 | 6b837bc4 | Jes Sorensen | progress = 1;
|
730 | 6b837bc4 | Jes Sorensen | break;
|
731 | 661a0f71 | Federico Simoncelli | case 't': |
732 | 661a0f71 | Federico Simoncelli | cache = optarg; |
733 | 661a0f71 | Federico Simoncelli | break;
|
734 | ea2384d3 | bellard | } |
735 | ea2384d3 | bellard | } |
736 | 3b46e624 | ths | |
737 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
738 | b8fb60da | Jes Sorensen | if (bs_n < 1) { |
739 | b8fb60da | Jes Sorensen | help(); |
740 | b8fb60da | Jes Sorensen | } |
741 | 926c2d23 | balrog | |
742 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
743 | f58c7b35 | ths | |
744 | fa170c14 | Charles Arnold | /* Initialize before goto out */
|
745 | fa170c14 | Charles Arnold | qemu_progress_init(progress, 2.0); |
746 | fa170c14 | Charles Arnold | |
747 | c8057f95 | Peter Maydell | if (options && is_help_option(options)) {
|
748 | 4ac8aacd | Jes Sorensen | ret = print_block_option_help(out_filename, out_fmt); |
749 | 4ac8aacd | Jes Sorensen | goto out;
|
750 | 4ac8aacd | Jes Sorensen | } |
751 | 4ac8aacd | Jes Sorensen | |
752 | c2abccec | MORITA Kazutaka | if (bs_n > 1 && out_baseimg) { |
753 | 15654a6d | Jes Sorensen | error_report("-B makes no sense when concatenating multiple input "
|
754 | 15654a6d | Jes Sorensen | "images");
|
755 | 31ca34b8 | Jes Sorensen | ret = -1;
|
756 | 31ca34b8 | Jes Sorensen | goto out;
|
757 | c2abccec | MORITA Kazutaka | } |
758 | f8111c24 | Dong Xu Wang | |
759 | 6b837bc4 | Jes Sorensen | qemu_progress_print(0, 100); |
760 | 6b837bc4 | Jes Sorensen | |
761 | 7267c094 | Anthony Liguori | bs = g_malloc0(bs_n * sizeof(BlockDriverState *));
|
762 | 926c2d23 | balrog | |
763 | 926c2d23 | balrog | total_sectors = 0;
|
764 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
765 | adfe078e | Stefan Hajnoczi | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt, BDRV_O_FLAGS); |
766 | c2abccec | MORITA Kazutaka | if (!bs[bs_i]) {
|
767 | 15654a6d | Jes Sorensen | error_report("Could not open '%s'", argv[optind + bs_i]);
|
768 | c2abccec | MORITA Kazutaka | ret = -1;
|
769 | c2abccec | MORITA Kazutaka | goto out;
|
770 | c2abccec | MORITA Kazutaka | } |
771 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
772 | 926c2d23 | balrog | total_sectors += bs_sectors; |
773 | 926c2d23 | balrog | } |
774 | ea2384d3 | bellard | |
775 | 51ef6727 | edison | if (snapshot_name != NULL) { |
776 | 51ef6727 | edison | if (bs_n > 1) { |
777 | 6daf194d | Markus Armbruster | error_report("No support for concatenating multiple snapshot");
|
778 | 51ef6727 | edison | ret = -1;
|
779 | 51ef6727 | edison | goto out;
|
780 | 51ef6727 | edison | } |
781 | 51ef6727 | edison | if (bdrv_snapshot_load_tmp(bs[0], snapshot_name) < 0) { |
782 | 6daf194d | Markus Armbruster | error_report("Failed to load snapshot");
|
783 | 51ef6727 | edison | ret = -1;
|
784 | 51ef6727 | edison | goto out;
|
785 | 51ef6727 | edison | } |
786 | 51ef6727 | edison | } |
787 | 51ef6727 | edison | |
788 | efa84d43 | Kevin Wolf | /* Find driver and parse its options */
|
789 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
790 | c2abccec | MORITA Kazutaka | if (!drv) {
|
791 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", out_fmt);
|
792 | c2abccec | MORITA Kazutaka | ret = -1;
|
793 | c2abccec | MORITA Kazutaka | goto out;
|
794 | c2abccec | MORITA Kazutaka | } |
795 | efa84d43 | Kevin Wolf | |
796 | b50cbabc | MORITA Kazutaka | proto_drv = bdrv_find_protocol(out_filename); |
797 | c2abccec | MORITA Kazutaka | if (!proto_drv) {
|
798 | 15654a6d | Jes Sorensen | error_report("Unknown protocol '%s'", out_filename);
|
799 | c2abccec | MORITA Kazutaka | ret = -1;
|
800 | c2abccec | MORITA Kazutaka | goto out;
|
801 | c2abccec | MORITA Kazutaka | } |
802 | b50cbabc | MORITA Kazutaka | |
803 | b50cbabc | MORITA Kazutaka | create_options = append_option_parameters(create_options, |
804 | b50cbabc | MORITA Kazutaka | drv->create_options); |
805 | b50cbabc | MORITA Kazutaka | create_options = append_option_parameters(create_options, |
806 | b50cbabc | MORITA Kazutaka | proto_drv->create_options); |
807 | db08adf5 | Kevin Wolf | |
808 | efa84d43 | Kevin Wolf | if (options) {
|
809 | b50cbabc | MORITA Kazutaka | param = parse_option_parameters(options, create_options, param); |
810 | efa84d43 | Kevin Wolf | if (param == NULL) { |
811 | 15654a6d | Jes Sorensen | error_report("Invalid options for file format '%s'.", out_fmt);
|
812 | c2abccec | MORITA Kazutaka | ret = -1;
|
813 | c2abccec | MORITA Kazutaka | goto out;
|
814 | efa84d43 | Kevin Wolf | } |
815 | efa84d43 | Kevin Wolf | } else {
|
816 | b50cbabc | MORITA Kazutaka | param = parse_option_parameters("", create_options, param);
|
817 | efa84d43 | Kevin Wolf | } |
818 | efa84d43 | Kevin Wolf | |
819 | efa84d43 | Kevin Wolf | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512);
|
820 | eec77d9e | Jes Sorensen | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL);
|
821 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
822 | c2abccec | MORITA Kazutaka | goto out;
|
823 | c2abccec | MORITA Kazutaka | } |
824 | efa84d43 | Kevin Wolf | |
825 | a18953fb | Kevin Wolf | /* Get backing file name if -o backing_file was used */
|
826 | a18953fb | Kevin Wolf | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
827 | a18953fb | Kevin Wolf | if (out_baseimg_param) {
|
828 | a18953fb | Kevin Wolf | out_baseimg = out_baseimg_param->value.s; |
829 | a18953fb | Kevin Wolf | } |
830 | a18953fb | Kevin Wolf | |
831 | efa84d43 | Kevin Wolf | /* Check if compression is supported */
|
832 | eec77d9e | Jes Sorensen | if (compress) {
|
833 | efa84d43 | Kevin Wolf | QEMUOptionParameter *encryption = |
834 | efa84d43 | Kevin Wolf | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
835 | 41521fa4 | Kevin Wolf | QEMUOptionParameter *preallocation = |
836 | 41521fa4 | Kevin Wolf | get_option_parameter(param, BLOCK_OPT_PREALLOC); |
837 | efa84d43 | Kevin Wolf | |
838 | efa84d43 | Kevin Wolf | if (!drv->bdrv_write_compressed) {
|
839 | 15654a6d | Jes Sorensen | error_report("Compression not supported for this file format");
|
840 | c2abccec | MORITA Kazutaka | ret = -1;
|
841 | c2abccec | MORITA Kazutaka | goto out;
|
842 | efa84d43 | Kevin Wolf | } |
843 | efa84d43 | Kevin Wolf | |
844 | efa84d43 | Kevin Wolf | if (encryption && encryption->value.n) {
|
845 | 15654a6d | Jes Sorensen | error_report("Compression and encryption not supported at "
|
846 | 15654a6d | Jes Sorensen | "the same time");
|
847 | c2abccec | MORITA Kazutaka | ret = -1;
|
848 | c2abccec | MORITA Kazutaka | goto out;
|
849 | efa84d43 | Kevin Wolf | } |
850 | 41521fa4 | Kevin Wolf | |
851 | 41521fa4 | Kevin Wolf | if (preallocation && preallocation->value.s
|
852 | 41521fa4 | Kevin Wolf | && strcmp(preallocation->value.s, "off"))
|
853 | 41521fa4 | Kevin Wolf | { |
854 | 41521fa4 | Kevin Wolf | error_report("Compression and preallocation not supported at "
|
855 | 41521fa4 | Kevin Wolf | "the same time");
|
856 | 41521fa4 | Kevin Wolf | ret = -1;
|
857 | 41521fa4 | Kevin Wolf | goto out;
|
858 | 41521fa4 | Kevin Wolf | } |
859 | efa84d43 | Kevin Wolf | } |
860 | efa84d43 | Kevin Wolf | |
861 | efa84d43 | Kevin Wolf | /* Create the new image */
|
862 | efa84d43 | Kevin Wolf | ret = bdrv_create(drv, out_filename, param); |
863 | ea2384d3 | bellard | if (ret < 0) { |
864 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
865 | 15654a6d | Jes Sorensen | error_report("Formatting not supported for file format '%s'",
|
866 | 15654a6d | Jes Sorensen | out_fmt); |
867 | 6e9ea0c0 | aurel32 | } else if (ret == -EFBIG) { |
868 | 15654a6d | Jes Sorensen | error_report("The image size is too large for file format '%s'",
|
869 | 15654a6d | Jes Sorensen | out_fmt); |
870 | ea2384d3 | bellard | } else {
|
871 | 15654a6d | Jes Sorensen | error_report("%s: error while converting %s: %s",
|
872 | 15654a6d | Jes Sorensen | out_filename, out_fmt, strerror(-ret)); |
873 | ea2384d3 | bellard | } |
874 | c2abccec | MORITA Kazutaka | goto out;
|
875 | ea2384d3 | bellard | } |
876 | 3b46e624 | ths | |
877 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR; |
878 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
879 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
880 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
881 | 661a0f71 | Federico Simoncelli | return -1; |
882 | 661a0f71 | Federico Simoncelli | } |
883 | 661a0f71 | Federico Simoncelli | |
884 | 661a0f71 | Federico Simoncelli | out_bs = bdrv_new_open(out_filename, out_fmt, flags); |
885 | c2abccec | MORITA Kazutaka | if (!out_bs) {
|
886 | c2abccec | MORITA Kazutaka | ret = -1;
|
887 | c2abccec | MORITA Kazutaka | goto out;
|
888 | c2abccec | MORITA Kazutaka | } |
889 | ea2384d3 | bellard | |
890 | 926c2d23 | balrog | bs_i = 0;
|
891 | 926c2d23 | balrog | bs_offset = 0;
|
892 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
893 | bb1c0597 | Kevin Wolf | buf = qemu_blockalign(out_bs, IO_BUF_SIZE); |
894 | 926c2d23 | balrog | |
895 | eec77d9e | Jes Sorensen | if (compress) {
|
896 | c2abccec | MORITA Kazutaka | ret = bdrv_get_info(out_bs, &bdi); |
897 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
898 | 15654a6d | Jes Sorensen | error_report("could not get block driver info");
|
899 | c2abccec | MORITA Kazutaka | goto out;
|
900 | c2abccec | MORITA Kazutaka | } |
901 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
902 | c2abccec | MORITA Kazutaka | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) { |
903 | 15654a6d | Jes Sorensen | error_report("invalid cluster size");
|
904 | c2abccec | MORITA Kazutaka | ret = -1;
|
905 | c2abccec | MORITA Kazutaka | goto out;
|
906 | c2abccec | MORITA Kazutaka | } |
907 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
908 | ea2384d3 | bellard | sector_num = 0;
|
909 | 6b837bc4 | Jes Sorensen | |
910 | 6b837bc4 | Jes Sorensen | nb_sectors = total_sectors; |
911 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
912 | 4ee96418 | Jes Sorensen | (nb_sectors / MIN(nb_sectors, cluster_sectors)); |
913 | 6b837bc4 | Jes Sorensen | |
914 | ea2384d3 | bellard | for(;;) {
|
915 | 926c2d23 | balrog | int64_t bs_num; |
916 | 926c2d23 | balrog | int remainder;
|
917 | 926c2d23 | balrog | uint8_t *buf2; |
918 | 926c2d23 | balrog | |
919 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
920 | ea2384d3 | bellard | if (nb_sectors <= 0) |
921 | ea2384d3 | bellard | break;
|
922 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
923 | ea2384d3 | bellard | n = cluster_sectors; |
924 | ea2384d3 | bellard | else
|
925 | ea2384d3 | bellard | n = nb_sectors; |
926 | 926c2d23 | balrog | |
927 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
928 | 926c2d23 | balrog | assert (bs_num >= 0);
|
929 | 926c2d23 | balrog | remainder = n; |
930 | 926c2d23 | balrog | buf2 = buf; |
931 | 926c2d23 | balrog | while (remainder > 0) { |
932 | 926c2d23 | balrog | int nlow;
|
933 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
934 | 926c2d23 | balrog | bs_i++; |
935 | 926c2d23 | balrog | assert (bs_i < bs_n); |
936 | 926c2d23 | balrog | bs_offset += bs_sectors; |
937 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
938 | 926c2d23 | balrog | bs_num = 0;
|
939 | 0bfcd599 | Blue Swirl | /* printf("changing part: sector_num=%" PRId64 ", "
|
940 | 0bfcd599 | Blue Swirl | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64
|
941 | 0bfcd599 | Blue Swirl | "\n", sector_num, bs_i, bs_offset, bs_sectors); */
|
942 | 926c2d23 | balrog | } |
943 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
944 | 926c2d23 | balrog | |
945 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
946 | 926c2d23 | balrog | |
947 | c2abccec | MORITA Kazutaka | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
948 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
949 | 3fba9d81 | Stefan Hajnoczi | error_report("error while reading sector %" PRId64 ": %s", |
950 | 3fba9d81 | Stefan Hajnoczi | bs_num, strerror(-ret)); |
951 | c2abccec | MORITA Kazutaka | goto out;
|
952 | c2abccec | MORITA Kazutaka | } |
953 | 926c2d23 | balrog | |
954 | 926c2d23 | balrog | buf2 += nlow * 512;
|
955 | 926c2d23 | balrog | bs_num += nlow; |
956 | 926c2d23 | balrog | |
957 | 926c2d23 | balrog | remainder -= nlow; |
958 | 926c2d23 | balrog | } |
959 | 926c2d23 | balrog | assert (remainder == 0);
|
960 | 926c2d23 | balrog | |
961 | b8fb60da | Jes Sorensen | if (n < cluster_sectors) {
|
962 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
963 | b8fb60da | Jes Sorensen | } |
964 | 1a6d39fd | Stefan Hajnoczi | if (!buffer_is_zero(buf, cluster_size)) {
|
965 | c2abccec | MORITA Kazutaka | ret = bdrv_write_compressed(out_bs, sector_num, buf, |
966 | c2abccec | MORITA Kazutaka | cluster_sectors); |
967 | c2abccec | MORITA Kazutaka | if (ret != 0) { |
968 | 3fba9d81 | Stefan Hajnoczi | error_report("error while compressing sector %" PRId64
|
969 | 3fba9d81 | Stefan Hajnoczi | ": %s", sector_num, strerror(-ret));
|
970 | c2abccec | MORITA Kazutaka | goto out;
|
971 | c2abccec | MORITA Kazutaka | } |
972 | ea2384d3 | bellard | } |
973 | ea2384d3 | bellard | sector_num += n; |
974 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
975 | ea2384d3 | bellard | } |
976 | faea38e7 | bellard | /* signal EOF to align */
|
977 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
978 | ea2384d3 | bellard | } else {
|
979 | f2feebbd | Kevin Wolf | int has_zero_init = bdrv_has_zero_init(out_bs);
|
980 | f2feebbd | Kevin Wolf | |
981 | f58c7b35 | ths | sector_num = 0; // total number of sectors converted so far |
982 | 6b837bc4 | Jes Sorensen | nb_sectors = total_sectors - sector_num; |
983 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
984 | 4ee96418 | Jes Sorensen | (nb_sectors / MIN(nb_sectors, IO_BUF_SIZE / 512));
|
985 | 6b837bc4 | Jes Sorensen | |
986 | ea2384d3 | bellard | for(;;) {
|
987 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
988 | b8fb60da | Jes Sorensen | if (nb_sectors <= 0) { |
989 | ea2384d3 | bellard | break;
|
990 | b8fb60da | Jes Sorensen | } |
991 | b8fb60da | Jes Sorensen | if (nb_sectors >= (IO_BUF_SIZE / 512)) { |
992 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
993 | b8fb60da | Jes Sorensen | } else {
|
994 | ea2384d3 | bellard | n = nb_sectors; |
995 | b8fb60da | Jes Sorensen | } |
996 | 926c2d23 | balrog | |
997 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
998 | 926c2d23 | balrog | bs_i ++; |
999 | 926c2d23 | balrog | assert (bs_i < bs_n); |
1000 | 926c2d23 | balrog | bs_offset += bs_sectors; |
1001 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
1002 | 0bfcd599 | Blue Swirl | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, "
|
1003 | 0bfcd599 | Blue Swirl | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n",
|
1004 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
1005 | 926c2d23 | balrog | } |
1006 | 926c2d23 | balrog | |
1007 | b8fb60da | Jes Sorensen | if (n > bs_offset + bs_sectors - sector_num) {
|
1008 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
1009 | b8fb60da | Jes Sorensen | } |
1010 | 926c2d23 | balrog | |
1011 | f2feebbd | Kevin Wolf | if (has_zero_init) {
|
1012 | d032044f | Akkarit Sangpetch | /* If the output image is being created as a copy on write image,
|
1013 | d032044f | Akkarit Sangpetch | assume that sectors which are unallocated in the input image
|
1014 | d032044f | Akkarit Sangpetch | are present in both the output's and input's base images (no
|
1015 | d032044f | Akkarit Sangpetch | need to copy them). */
|
1016 | d032044f | Akkarit Sangpetch | if (out_baseimg) {
|
1017 | d032044f | Akkarit Sangpetch | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset,
|
1018 | d032044f | Akkarit Sangpetch | n, &n1)) { |
1019 | d032044f | Akkarit Sangpetch | sector_num += n1; |
1020 | d032044f | Akkarit Sangpetch | continue;
|
1021 | d032044f | Akkarit Sangpetch | } |
1022 | d032044f | Akkarit Sangpetch | /* The next 'n1' sectors are allocated in the input image. Copy
|
1023 | d032044f | Akkarit Sangpetch | only those as they may be followed by unallocated sectors. */
|
1024 | d032044f | Akkarit Sangpetch | n = n1; |
1025 | 93c65b47 | aliguori | } |
1026 | 93c65b47 | aliguori | } else {
|
1027 | 93c65b47 | aliguori | n1 = n; |
1028 | f58c7b35 | ths | } |
1029 | f58c7b35 | ths | |
1030 | c2abccec | MORITA Kazutaka | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
1031 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
1032 | 3fba9d81 | Stefan Hajnoczi | error_report("error while reading sector %" PRId64 ": %s", |
1033 | 3fba9d81 | Stefan Hajnoczi | sector_num - bs_offset, strerror(-ret)); |
1034 | c2abccec | MORITA Kazutaka | goto out;
|
1035 | c2abccec | MORITA Kazutaka | } |
1036 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
1037 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
1038 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
1039 | ea2384d3 | bellard | buf1 = buf; |
1040 | ea2384d3 | bellard | while (n > 0) { |
1041 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
1042 | f58c7b35 | ths | copy all sectors even the ones containing only NUL bytes,
|
1043 | 93c65b47 | aliguori | because they may differ from the sectors in the base image.
|
1044 | 93c65b47 | aliguori | |
1045 | 93c65b47 | aliguori | If the output is to a host device, we also write out
|
1046 | 93c65b47 | aliguori | sectors that are entirely 0, since whatever data was
|
1047 | 93c65b47 | aliguori | already there is garbage, not 0s. */
|
1048 | f2feebbd | Kevin Wolf | if (!has_zero_init || out_baseimg ||
|
1049 | a22f123c | Kevin Wolf | is_allocated_sectors_min(buf1, n, &n1, min_sparse)) { |
1050 | c2abccec | MORITA Kazutaka | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
1051 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
1052 | 3fba9d81 | Stefan Hajnoczi | error_report("error while writing sector %" PRId64
|
1053 | 3fba9d81 | Stefan Hajnoczi | ": %s", sector_num, strerror(-ret));
|
1054 | c2abccec | MORITA Kazutaka | goto out;
|
1055 | c2abccec | MORITA Kazutaka | } |
1056 | ea2384d3 | bellard | } |
1057 | ea2384d3 | bellard | sector_num += n1; |
1058 | ea2384d3 | bellard | n -= n1; |
1059 | ea2384d3 | bellard | buf1 += n1 * 512;
|
1060 | ea2384d3 | bellard | } |
1061 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
1062 | ea2384d3 | bellard | } |
1063 | ea2384d3 | bellard | } |
1064 | c2abccec | MORITA Kazutaka | out:
|
1065 | 6b837bc4 | Jes Sorensen | qemu_progress_end(); |
1066 | c2abccec | MORITA Kazutaka | free_option_parameters(create_options); |
1067 | c2abccec | MORITA Kazutaka | free_option_parameters(param); |
1068 | bb1c0597 | Kevin Wolf | qemu_vfree(buf); |
1069 | c2abccec | MORITA Kazutaka | if (out_bs) {
|
1070 | c2abccec | MORITA Kazutaka | bdrv_delete(out_bs); |
1071 | c2abccec | MORITA Kazutaka | } |
1072 | 31ca34b8 | Jes Sorensen | if (bs) {
|
1073 | 31ca34b8 | Jes Sorensen | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
1074 | 31ca34b8 | Jes Sorensen | if (bs[bs_i]) {
|
1075 | 31ca34b8 | Jes Sorensen | bdrv_delete(bs[bs_i]); |
1076 | 31ca34b8 | Jes Sorensen | } |
1077 | c2abccec | MORITA Kazutaka | } |
1078 | 7267c094 | Anthony Liguori | g_free(bs); |
1079 | c2abccec | MORITA Kazutaka | } |
1080 | c2abccec | MORITA Kazutaka | if (ret) {
|
1081 | c2abccec | MORITA Kazutaka | return 1; |
1082 | c2abccec | MORITA Kazutaka | } |
1083 | ea2384d3 | bellard | return 0; |
1084 | ea2384d3 | bellard | } |
1085 | ea2384d3 | bellard | |
1086 | 57d1a2b6 | bellard | |
1087 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
1088 | faea38e7 | bellard | { |
1089 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
1090 | faea38e7 | bellard | int nb_sns, i;
|
1091 | faea38e7 | bellard | char buf[256]; |
1092 | faea38e7 | bellard | |
1093 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
1094 | faea38e7 | bellard | if (nb_sns <= 0) |
1095 | faea38e7 | bellard | return;
|
1096 | faea38e7 | bellard | printf("Snapshot list:\n");
|
1097 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
1098 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
1099 | faea38e7 | bellard | sn = &sn_tab[i]; |
1100 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
1101 | faea38e7 | bellard | } |
1102 | 7267c094 | Anthony Liguori | g_free(sn_tab); |
1103 | faea38e7 | bellard | } |
1104 | faea38e7 | bellard | |
1105 | ea2384d3 | bellard | static int img_info(int argc, char **argv) |
1106 | ea2384d3 | bellard | { |
1107 | ea2384d3 | bellard | int c;
|
1108 | ea2384d3 | bellard | const char *filename, *fmt; |
1109 | ea2384d3 | bellard | BlockDriverState *bs; |
1110 | f8d6bba1 | Markus Armbruster | char size_buf[128], dsize_buf[128]; |
1111 | 96b8f136 | ths | uint64_t total_sectors; |
1112 | 96b8f136 | ths | int64_t allocated_size; |
1113 | 93b6b2a3 | bellard | char backing_filename[1024]; |
1114 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
1115 | faea38e7 | bellard | BlockDriverInfo bdi; |
1116 | ea2384d3 | bellard | |
1117 | ea2384d3 | bellard | fmt = NULL;
|
1118 | ea2384d3 | bellard | for(;;) {
|
1119 | ea2384d3 | bellard | c = getopt(argc, argv, "f:h");
|
1120 | b8fb60da | Jes Sorensen | if (c == -1) { |
1121 | ea2384d3 | bellard | break;
|
1122 | b8fb60da | Jes Sorensen | } |
1123 | ea2384d3 | bellard | switch(c) {
|
1124 | ef87394c | Jes Sorensen | case '?': |
1125 | ea2384d3 | bellard | case 'h': |
1126 | ea2384d3 | bellard | help(); |
1127 | ea2384d3 | bellard | break;
|
1128 | ea2384d3 | bellard | case 'f': |
1129 | ea2384d3 | bellard | fmt = optarg; |
1130 | ea2384d3 | bellard | break;
|
1131 | ea2384d3 | bellard | } |
1132 | ea2384d3 | bellard | } |
1133 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
1134 | ea2384d3 | bellard | help(); |
1135 | b8fb60da | Jes Sorensen | } |
1136 | ea2384d3 | bellard | filename = argv[optind++]; |
1137 | ea2384d3 | bellard | |
1138 | adfe078e | Stefan Hajnoczi | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING); |
1139 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1140 | c2abccec | MORITA Kazutaka | return 1; |
1141 | c2abccec | MORITA Kazutaka | } |
1142 | ea2384d3 | bellard | bdrv_get_geometry(bs, &total_sectors); |
1143 | ea2384d3 | bellard | get_human_readable_size(size_buf, sizeof(size_buf), total_sectors * 512); |
1144 | 4a1d5e1f | Fam Zheng | allocated_size = bdrv_get_allocated_file_size(bs); |
1145 | b8fb60da | Jes Sorensen | if (allocated_size < 0) { |
1146 | a10ea30b | blueswir1 | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
1147 | b8fb60da | Jes Sorensen | } else {
|
1148 | 5fafdf24 | ths | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
1149 | de167e41 | bellard | allocated_size); |
1150 | b8fb60da | Jes Sorensen | } |
1151 | ea2384d3 | bellard | printf("image: %s\n"
|
1152 | ea2384d3 | bellard | "file format: %s\n"
|
1153 | ec3757de | bellard | "virtual size: %s (%" PRId64 " bytes)\n" |
1154 | ea2384d3 | bellard | "disk size: %s\n",
|
1155 | f8d6bba1 | Markus Armbruster | filename, bdrv_get_format_name(bs), size_buf, |
1156 | ec3757de | bellard | (total_sectors * 512),
|
1157 | ea2384d3 | bellard | dsize_buf); |
1158 | b8fb60da | Jes Sorensen | if (bdrv_is_encrypted(bs)) {
|
1159 | ea2384d3 | bellard | printf("encrypted: yes\n");
|
1160 | b8fb60da | Jes Sorensen | } |
1161 | faea38e7 | bellard | if (bdrv_get_info(bs, &bdi) >= 0) { |
1162 | b8fb60da | Jes Sorensen | if (bdi.cluster_size != 0) { |
1163 | faea38e7 | bellard | printf("cluster_size: %d\n", bdi.cluster_size);
|
1164 | b8fb60da | Jes Sorensen | } |
1165 | 64c79160 | Dong Xu Wang | if (bdi.is_dirty) {
|
1166 | 64c79160 | Dong Xu Wang | printf("cleanly shut down: no\n");
|
1167 | 64c79160 | Dong Xu Wang | } |
1168 | faea38e7 | bellard | } |
1169 | 93b6b2a3 | bellard | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
1170 | faea38e7 | bellard | if (backing_filename[0] != '\0') { |
1171 | dc5a1371 | Paolo Bonzini | bdrv_get_full_backing_filename(bs, backing_filename2, |
1172 | dc5a1371 | Paolo Bonzini | sizeof(backing_filename2));
|
1173 | dc5a1371 | Paolo Bonzini | printf("backing file: %s", backing_filename);
|
1174 | dc5a1371 | Paolo Bonzini | if (strcmp(backing_filename, backing_filename2) != 0) { |
1175 | dc5a1371 | Paolo Bonzini | printf(" (actual path: %s)", backing_filename2);
|
1176 | dc5a1371 | Paolo Bonzini | } |
1177 | dc5a1371 | Paolo Bonzini | putchar('\n');
|
1178 | faea38e7 | bellard | } |
1179 | faea38e7 | bellard | dump_snapshots(bs); |
1180 | ea2384d3 | bellard | bdrv_delete(bs); |
1181 | ea2384d3 | bellard | return 0; |
1182 | ea2384d3 | bellard | } |
1183 | ea2384d3 | bellard | |
1184 | f7b4a940 | aliguori | #define SNAPSHOT_LIST 1 |
1185 | f7b4a940 | aliguori | #define SNAPSHOT_CREATE 2 |
1186 | f7b4a940 | aliguori | #define SNAPSHOT_APPLY 3 |
1187 | f7b4a940 | aliguori | #define SNAPSHOT_DELETE 4 |
1188 | f7b4a940 | aliguori | |
1189 | 153859be | Stuart Brady | static int img_snapshot(int argc, char **argv) |
1190 | f7b4a940 | aliguori | { |
1191 | f7b4a940 | aliguori | BlockDriverState *bs; |
1192 | f7b4a940 | aliguori | QEMUSnapshotInfo sn; |
1193 | f7b4a940 | aliguori | char *filename, *snapshot_name = NULL; |
1194 | c2abccec | MORITA Kazutaka | int c, ret = 0, bdrv_oflags; |
1195 | f7b4a940 | aliguori | int action = 0; |
1196 | f7b4a940 | aliguori | qemu_timeval tv; |
1197 | f7b4a940 | aliguori | |
1198 | 710da702 | Kevin Wolf | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
1199 | f7b4a940 | aliguori | /* Parse commandline parameters */
|
1200 | f7b4a940 | aliguori | for(;;) {
|
1201 | f7b4a940 | aliguori | c = getopt(argc, argv, "la:c:d:h");
|
1202 | b8fb60da | Jes Sorensen | if (c == -1) { |
1203 | f7b4a940 | aliguori | break;
|
1204 | b8fb60da | Jes Sorensen | } |
1205 | f7b4a940 | aliguori | switch(c) {
|
1206 | ef87394c | Jes Sorensen | case '?': |
1207 | f7b4a940 | aliguori | case 'h': |
1208 | f7b4a940 | aliguori | help(); |
1209 | 153859be | Stuart Brady | return 0; |
1210 | f7b4a940 | aliguori | case 'l': |
1211 | f7b4a940 | aliguori | if (action) {
|
1212 | f7b4a940 | aliguori | help(); |
1213 | 153859be | Stuart Brady | return 0; |
1214 | f7b4a940 | aliguori | } |
1215 | f7b4a940 | aliguori | action = SNAPSHOT_LIST; |
1216 | f5edb014 | Naphtali Sprei | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */
|
1217 | f7b4a940 | aliguori | break;
|
1218 | f7b4a940 | aliguori | case 'a': |
1219 | f7b4a940 | aliguori | if (action) {
|
1220 | f7b4a940 | aliguori | help(); |
1221 | 153859be | Stuart Brady | return 0; |
1222 | f7b4a940 | aliguori | } |
1223 | f7b4a940 | aliguori | action = SNAPSHOT_APPLY; |
1224 | f7b4a940 | aliguori | snapshot_name = optarg; |
1225 | f7b4a940 | aliguori | break;
|
1226 | f7b4a940 | aliguori | case 'c': |
1227 | f7b4a940 | aliguori | if (action) {
|
1228 | f7b4a940 | aliguori | help(); |
1229 | 153859be | Stuart Brady | return 0; |
1230 | f7b4a940 | aliguori | } |
1231 | f7b4a940 | aliguori | action = SNAPSHOT_CREATE; |
1232 | f7b4a940 | aliguori | snapshot_name = optarg; |
1233 | f7b4a940 | aliguori | break;
|
1234 | f7b4a940 | aliguori | case 'd': |
1235 | f7b4a940 | aliguori | if (action) {
|
1236 | f7b4a940 | aliguori | help(); |
1237 | 153859be | Stuart Brady | return 0; |
1238 | f7b4a940 | aliguori | } |
1239 | f7b4a940 | aliguori | action = SNAPSHOT_DELETE; |
1240 | f7b4a940 | aliguori | snapshot_name = optarg; |
1241 | f7b4a940 | aliguori | break;
|
1242 | f7b4a940 | aliguori | } |
1243 | f7b4a940 | aliguori | } |
1244 | f7b4a940 | aliguori | |
1245 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
1246 | f7b4a940 | aliguori | help(); |
1247 | b8fb60da | Jes Sorensen | } |
1248 | f7b4a940 | aliguori | filename = argv[optind++]; |
1249 | f7b4a940 | aliguori | |
1250 | f7b4a940 | aliguori | /* Open the image */
|
1251 | f163d073 | Stefan Hajnoczi | bs = bdrv_new_open(filename, NULL, bdrv_oflags);
|
1252 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1253 | c2abccec | MORITA Kazutaka | return 1; |
1254 | c2abccec | MORITA Kazutaka | } |
1255 | f7b4a940 | aliguori | |
1256 | f7b4a940 | aliguori | /* Perform the requested action */
|
1257 | f7b4a940 | aliguori | switch(action) {
|
1258 | f7b4a940 | aliguori | case SNAPSHOT_LIST:
|
1259 | f7b4a940 | aliguori | dump_snapshots(bs); |
1260 | f7b4a940 | aliguori | break;
|
1261 | f7b4a940 | aliguori | |
1262 | f7b4a940 | aliguori | case SNAPSHOT_CREATE:
|
1263 | f7b4a940 | aliguori | memset(&sn, 0, sizeof(sn)); |
1264 | f7b4a940 | aliguori | pstrcpy(sn.name, sizeof(sn.name), snapshot_name);
|
1265 | f7b4a940 | aliguori | |
1266 | f7b4a940 | aliguori | qemu_gettimeofday(&tv); |
1267 | f7b4a940 | aliguori | sn.date_sec = tv.tv_sec; |
1268 | f7b4a940 | aliguori | sn.date_nsec = tv.tv_usec * 1000;
|
1269 | f7b4a940 | aliguori | |
1270 | f7b4a940 | aliguori | ret = bdrv_snapshot_create(bs, &sn); |
1271 | b8fb60da | Jes Sorensen | if (ret) {
|
1272 | 15654a6d | Jes Sorensen | error_report("Could not create snapshot '%s': %d (%s)",
|
1273 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1274 | b8fb60da | Jes Sorensen | } |
1275 | f7b4a940 | aliguori | break;
|
1276 | f7b4a940 | aliguori | |
1277 | f7b4a940 | aliguori | case SNAPSHOT_APPLY:
|
1278 | f7b4a940 | aliguori | ret = bdrv_snapshot_goto(bs, snapshot_name); |
1279 | b8fb60da | Jes Sorensen | if (ret) {
|
1280 | 15654a6d | Jes Sorensen | error_report("Could not apply snapshot '%s': %d (%s)",
|
1281 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1282 | b8fb60da | Jes Sorensen | } |
1283 | f7b4a940 | aliguori | break;
|
1284 | f7b4a940 | aliguori | |
1285 | f7b4a940 | aliguori | case SNAPSHOT_DELETE:
|
1286 | f7b4a940 | aliguori | ret = bdrv_snapshot_delete(bs, snapshot_name); |
1287 | b8fb60da | Jes Sorensen | if (ret) {
|
1288 | 15654a6d | Jes Sorensen | error_report("Could not delete snapshot '%s': %d (%s)",
|
1289 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1290 | b8fb60da | Jes Sorensen | } |
1291 | f7b4a940 | aliguori | break;
|
1292 | f7b4a940 | aliguori | } |
1293 | f7b4a940 | aliguori | |
1294 | f7b4a940 | aliguori | /* Cleanup */
|
1295 | f7b4a940 | aliguori | bdrv_delete(bs); |
1296 | c2abccec | MORITA Kazutaka | if (ret) {
|
1297 | c2abccec | MORITA Kazutaka | return 1; |
1298 | c2abccec | MORITA Kazutaka | } |
1299 | 153859be | Stuart Brady | return 0; |
1300 | f7b4a940 | aliguori | } |
1301 | f7b4a940 | aliguori | |
1302 | 3e85c6fd | Kevin Wolf | static int img_rebase(int argc, char **argv) |
1303 | 3e85c6fd | Kevin Wolf | { |
1304 | c2abccec | MORITA Kazutaka | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
1305 | f163d073 | Stefan Hajnoczi | BlockDriver *old_backing_drv, *new_backing_drv; |
1306 | 3e85c6fd | Kevin Wolf | char *filename;
|
1307 | 661a0f71 | Federico Simoncelli | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
1308 | 3e85c6fd | Kevin Wolf | int c, flags, ret;
|
1309 | 3e85c6fd | Kevin Wolf | int unsafe = 0; |
1310 | 6b837bc4 | Jes Sorensen | int progress = 0; |
1311 | 3e85c6fd | Kevin Wolf | |
1312 | 3e85c6fd | Kevin Wolf | /* Parse commandline parameters */
|
1313 | e53dbee0 | Kevin Wolf | fmt = NULL;
|
1314 | 661a0f71 | Federico Simoncelli | cache = BDRV_DEFAULT_CACHE; |
1315 | 3e85c6fd | Kevin Wolf | out_baseimg = NULL;
|
1316 | 3e85c6fd | Kevin Wolf | out_basefmt = NULL;
|
1317 | 3e85c6fd | Kevin Wolf | for(;;) {
|
1318 | 661a0f71 | Federico Simoncelli | c = getopt(argc, argv, "uhf:F:b:pt:");
|
1319 | b8fb60da | Jes Sorensen | if (c == -1) { |
1320 | 3e85c6fd | Kevin Wolf | break;
|
1321 | b8fb60da | Jes Sorensen | } |
1322 | 3e85c6fd | Kevin Wolf | switch(c) {
|
1323 | ef87394c | Jes Sorensen | case '?': |
1324 | 3e85c6fd | Kevin Wolf | case 'h': |
1325 | 3e85c6fd | Kevin Wolf | help(); |
1326 | 3e85c6fd | Kevin Wolf | return 0; |
1327 | e53dbee0 | Kevin Wolf | case 'f': |
1328 | e53dbee0 | Kevin Wolf | fmt = optarg; |
1329 | e53dbee0 | Kevin Wolf | break;
|
1330 | 3e85c6fd | Kevin Wolf | case 'F': |
1331 | 3e85c6fd | Kevin Wolf | out_basefmt = optarg; |
1332 | 3e85c6fd | Kevin Wolf | break;
|
1333 | 3e85c6fd | Kevin Wolf | case 'b': |
1334 | 3e85c6fd | Kevin Wolf | out_baseimg = optarg; |
1335 | 3e85c6fd | Kevin Wolf | break;
|
1336 | 3e85c6fd | Kevin Wolf | case 'u': |
1337 | 3e85c6fd | Kevin Wolf | unsafe = 1;
|
1338 | 3e85c6fd | Kevin Wolf | break;
|
1339 | 6b837bc4 | Jes Sorensen | case 'p': |
1340 | 6b837bc4 | Jes Sorensen | progress = 1;
|
1341 | 6b837bc4 | Jes Sorensen | break;
|
1342 | 661a0f71 | Federico Simoncelli | case 't': |
1343 | 661a0f71 | Federico Simoncelli | cache = optarg; |
1344 | 661a0f71 | Federico Simoncelli | break;
|
1345 | 3e85c6fd | Kevin Wolf | } |
1346 | 3e85c6fd | Kevin Wolf | } |
1347 | 3e85c6fd | Kevin Wolf | |
1348 | 9a9d9dba | Anthony Liguori | if ((optind >= argc) || (!unsafe && !out_baseimg)) {
|
1349 | 3e85c6fd | Kevin Wolf | help(); |
1350 | b8fb60da | Jes Sorensen | } |
1351 | 3e85c6fd | Kevin Wolf | filename = argv[optind++]; |
1352 | 3e85c6fd | Kevin Wolf | |
1353 | 6b837bc4 | Jes Sorensen | qemu_progress_init(progress, 2.0); |
1354 | 6b837bc4 | Jes Sorensen | qemu_progress_print(0, 100); |
1355 | 6b837bc4 | Jes Sorensen | |
1356 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0);
|
1357 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
1358 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
1359 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
1360 | 661a0f71 | Federico Simoncelli | return -1; |
1361 | 661a0f71 | Federico Simoncelli | } |
1362 | 661a0f71 | Federico Simoncelli | |
1363 | 3e85c6fd | Kevin Wolf | /*
|
1364 | 3e85c6fd | Kevin Wolf | * Open the images.
|
1365 | 3e85c6fd | Kevin Wolf | *
|
1366 | 3e85c6fd | Kevin Wolf | * Ignore the old backing file for unsafe rebase in case we want to correct
|
1367 | 3e85c6fd | Kevin Wolf | * the reference to a renamed or moved backing file.
|
1368 | 3e85c6fd | Kevin Wolf | */
|
1369 | f163d073 | Stefan Hajnoczi | bs = bdrv_new_open(filename, fmt, flags); |
1370 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1371 | c2abccec | MORITA Kazutaka | return 1; |
1372 | c2abccec | MORITA Kazutaka | } |
1373 | 3e85c6fd | Kevin Wolf | |
1374 | 3e85c6fd | Kevin Wolf | /* Find the right drivers for the backing files */
|
1375 | 3e85c6fd | Kevin Wolf | old_backing_drv = NULL;
|
1376 | 3e85c6fd | Kevin Wolf | new_backing_drv = NULL;
|
1377 | 3e85c6fd | Kevin Wolf | |
1378 | 3e85c6fd | Kevin Wolf | if (!unsafe && bs->backing_format[0] != '\0') { |
1379 | 3e85c6fd | Kevin Wolf | old_backing_drv = bdrv_find_format(bs->backing_format); |
1380 | 3e85c6fd | Kevin Wolf | if (old_backing_drv == NULL) { |
1381 | 15654a6d | Jes Sorensen | error_report("Invalid format name: '%s'", bs->backing_format);
|
1382 | c2abccec | MORITA Kazutaka | ret = -1;
|
1383 | c2abccec | MORITA Kazutaka | goto out;
|
1384 | 3e85c6fd | Kevin Wolf | } |
1385 | 3e85c6fd | Kevin Wolf | } |
1386 | 3e85c6fd | Kevin Wolf | |
1387 | 3e85c6fd | Kevin Wolf | if (out_basefmt != NULL) { |
1388 | 3e85c6fd | Kevin Wolf | new_backing_drv = bdrv_find_format(out_basefmt); |
1389 | 3e85c6fd | Kevin Wolf | if (new_backing_drv == NULL) { |
1390 | 15654a6d | Jes Sorensen | error_report("Invalid format name: '%s'", out_basefmt);
|
1391 | c2abccec | MORITA Kazutaka | ret = -1;
|
1392 | c2abccec | MORITA Kazutaka | goto out;
|
1393 | 3e85c6fd | Kevin Wolf | } |
1394 | 3e85c6fd | Kevin Wolf | } |
1395 | 3e85c6fd | Kevin Wolf | |
1396 | 3e85c6fd | Kevin Wolf | /* For safe rebasing we need to compare old and new backing file */
|
1397 | 3e85c6fd | Kevin Wolf | if (unsafe) {
|
1398 | 3e85c6fd | Kevin Wolf | /* Make the compiler happy */
|
1399 | 3e85c6fd | Kevin Wolf | bs_old_backing = NULL;
|
1400 | 3e85c6fd | Kevin Wolf | bs_new_backing = NULL;
|
1401 | 3e85c6fd | Kevin Wolf | } else {
|
1402 | 3e85c6fd | Kevin Wolf | char backing_name[1024]; |
1403 | 3e85c6fd | Kevin Wolf | |
1404 | 3e85c6fd | Kevin Wolf | bs_old_backing = bdrv_new("old_backing");
|
1405 | 3e85c6fd | Kevin Wolf | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
|
1406 | c2abccec | MORITA Kazutaka | ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS, |
1407 | c2abccec | MORITA Kazutaka | old_backing_drv); |
1408 | c2abccec | MORITA Kazutaka | if (ret) {
|
1409 | 15654a6d | Jes Sorensen | error_report("Could not open old backing file '%s'", backing_name);
|
1410 | c2abccec | MORITA Kazutaka | goto out;
|
1411 | 3e85c6fd | Kevin Wolf | } |
1412 | 3e85c6fd | Kevin Wolf | |
1413 | 3e85c6fd | Kevin Wolf | bs_new_backing = bdrv_new("new_backing");
|
1414 | cdbae851 | Kevin Wolf | ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS, |
1415 | c2abccec | MORITA Kazutaka | new_backing_drv); |
1416 | c2abccec | MORITA Kazutaka | if (ret) {
|
1417 | 15654a6d | Jes Sorensen | error_report("Could not open new backing file '%s'", out_baseimg);
|
1418 | c2abccec | MORITA Kazutaka | goto out;
|
1419 | 3e85c6fd | Kevin Wolf | } |
1420 | 3e85c6fd | Kevin Wolf | } |
1421 | 3e85c6fd | Kevin Wolf | |
1422 | 3e85c6fd | Kevin Wolf | /*
|
1423 | 3e85c6fd | Kevin Wolf | * Check each unallocated cluster in the COW file. If it is unallocated,
|
1424 | 3e85c6fd | Kevin Wolf | * accesses go to the backing file. We must therefore compare this cluster
|
1425 | 3e85c6fd | Kevin Wolf | * in the old and new backing file, and if they differ we need to copy it
|
1426 | 3e85c6fd | Kevin Wolf | * from the old backing file into the COW file.
|
1427 | 3e85c6fd | Kevin Wolf | *
|
1428 | 3e85c6fd | Kevin Wolf | * If qemu-img crashes during this step, no harm is done. The content of
|
1429 | 3e85c6fd | Kevin Wolf | * the image is the same as the original one at any time.
|
1430 | 3e85c6fd | Kevin Wolf | */
|
1431 | 3e85c6fd | Kevin Wolf | if (!unsafe) {
|
1432 | 3e85c6fd | Kevin Wolf | uint64_t num_sectors; |
1433 | 87a1b3e3 | Kevin Wolf | uint64_t old_backing_num_sectors; |
1434 | 87a1b3e3 | Kevin Wolf | uint64_t new_backing_num_sectors; |
1435 | 3e85c6fd | Kevin Wolf | uint64_t sector; |
1436 | cc60e327 | Kevin Wolf | int n;
|
1437 | d6771bfa | TeLeMan | uint8_t * buf_old; |
1438 | d6771bfa | TeLeMan | uint8_t * buf_new; |
1439 | 6b837bc4 | Jes Sorensen | float local_progress;
|
1440 | d6771bfa | TeLeMan | |
1441 | bb1c0597 | Kevin Wolf | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
1442 | bb1c0597 | Kevin Wolf | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); |
1443 | 3e85c6fd | Kevin Wolf | |
1444 | 3e85c6fd | Kevin Wolf | bdrv_get_geometry(bs, &num_sectors); |
1445 | 87a1b3e3 | Kevin Wolf | bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors); |
1446 | 87a1b3e3 | Kevin Wolf | bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors); |
1447 | 3e85c6fd | Kevin Wolf | |
1448 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
1449 | 4ee96418 | Jes Sorensen | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512));
|
1450 | 3e85c6fd | Kevin Wolf | for (sector = 0; sector < num_sectors; sector += n) { |
1451 | 3e85c6fd | Kevin Wolf | |
1452 | 3e85c6fd | Kevin Wolf | /* How many sectors can we handle with the next read? */
|
1453 | 3e85c6fd | Kevin Wolf | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
1454 | 3e85c6fd | Kevin Wolf | n = (IO_BUF_SIZE / 512);
|
1455 | 3e85c6fd | Kevin Wolf | } else {
|
1456 | 3e85c6fd | Kevin Wolf | n = num_sectors - sector; |
1457 | 3e85c6fd | Kevin Wolf | } |
1458 | 3e85c6fd | Kevin Wolf | |
1459 | 3e85c6fd | Kevin Wolf | /* If the cluster is allocated, we don't need to take action */
|
1460 | cc60e327 | Kevin Wolf | ret = bdrv_is_allocated(bs, sector, n, &n); |
1461 | cc60e327 | Kevin Wolf | if (ret) {
|
1462 | 3e85c6fd | Kevin Wolf | continue;
|
1463 | 3e85c6fd | Kevin Wolf | } |
1464 | 3e85c6fd | Kevin Wolf | |
1465 | 87a1b3e3 | Kevin Wolf | /*
|
1466 | 87a1b3e3 | Kevin Wolf | * Read old and new backing file and take into consideration that
|
1467 | 87a1b3e3 | Kevin Wolf | * backing files may be smaller than the COW image.
|
1468 | 87a1b3e3 | Kevin Wolf | */
|
1469 | 87a1b3e3 | Kevin Wolf | if (sector >= old_backing_num_sectors) {
|
1470 | 87a1b3e3 | Kevin Wolf | memset(buf_old, 0, n * BDRV_SECTOR_SIZE);
|
1471 | 87a1b3e3 | Kevin Wolf | } else {
|
1472 | 87a1b3e3 | Kevin Wolf | if (sector + n > old_backing_num_sectors) {
|
1473 | 87a1b3e3 | Kevin Wolf | n = old_backing_num_sectors - sector; |
1474 | 87a1b3e3 | Kevin Wolf | } |
1475 | 87a1b3e3 | Kevin Wolf | |
1476 | 87a1b3e3 | Kevin Wolf | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
1477 | 87a1b3e3 | Kevin Wolf | if (ret < 0) { |
1478 | 87a1b3e3 | Kevin Wolf | error_report("error while reading from old backing file");
|
1479 | 87a1b3e3 | Kevin Wolf | goto out;
|
1480 | 87a1b3e3 | Kevin Wolf | } |
1481 | 3e85c6fd | Kevin Wolf | } |
1482 | 87a1b3e3 | Kevin Wolf | |
1483 | 87a1b3e3 | Kevin Wolf | if (sector >= new_backing_num_sectors) {
|
1484 | 87a1b3e3 | Kevin Wolf | memset(buf_new, 0, n * BDRV_SECTOR_SIZE);
|
1485 | 87a1b3e3 | Kevin Wolf | } else {
|
1486 | 87a1b3e3 | Kevin Wolf | if (sector + n > new_backing_num_sectors) {
|
1487 | 87a1b3e3 | Kevin Wolf | n = new_backing_num_sectors - sector; |
1488 | 87a1b3e3 | Kevin Wolf | } |
1489 | 87a1b3e3 | Kevin Wolf | |
1490 | 87a1b3e3 | Kevin Wolf | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
1491 | 87a1b3e3 | Kevin Wolf | if (ret < 0) { |
1492 | 87a1b3e3 | Kevin Wolf | error_report("error while reading from new backing file");
|
1493 | 87a1b3e3 | Kevin Wolf | goto out;
|
1494 | 87a1b3e3 | Kevin Wolf | } |
1495 | 3e85c6fd | Kevin Wolf | } |
1496 | 3e85c6fd | Kevin Wolf | |
1497 | 3e85c6fd | Kevin Wolf | /* If they differ, we need to write to the COW file */
|
1498 | 3e85c6fd | Kevin Wolf | uint64_t written = 0;
|
1499 | 3e85c6fd | Kevin Wolf | |
1500 | 3e85c6fd | Kevin Wolf | while (written < n) {
|
1501 | 3e85c6fd | Kevin Wolf | int pnum;
|
1502 | 3e85c6fd | Kevin Wolf | |
1503 | 3e85c6fd | Kevin Wolf | if (compare_sectors(buf_old + written * 512, |
1504 | 60b1bd4f | Kevin Wolf | buf_new + written * 512, n - written, &pnum))
|
1505 | 3e85c6fd | Kevin Wolf | { |
1506 | 3e85c6fd | Kevin Wolf | ret = bdrv_write(bs, sector + written, |
1507 | 3e85c6fd | Kevin Wolf | buf_old + written * 512, pnum);
|
1508 | 3e85c6fd | Kevin Wolf | if (ret < 0) { |
1509 | 15654a6d | Jes Sorensen | error_report("Error while writing to COW image: %s",
|
1510 | 3e85c6fd | Kevin Wolf | strerror(-ret)); |
1511 | c2abccec | MORITA Kazutaka | goto out;
|
1512 | 3e85c6fd | Kevin Wolf | } |
1513 | 3e85c6fd | Kevin Wolf | } |
1514 | 3e85c6fd | Kevin Wolf | |
1515 | 3e85c6fd | Kevin Wolf | written += pnum; |
1516 | 3e85c6fd | Kevin Wolf | } |
1517 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
1518 | 3e85c6fd | Kevin Wolf | } |
1519 | d6771bfa | TeLeMan | |
1520 | bb1c0597 | Kevin Wolf | qemu_vfree(buf_old); |
1521 | bb1c0597 | Kevin Wolf | qemu_vfree(buf_new); |
1522 | 3e85c6fd | Kevin Wolf | } |
1523 | 3e85c6fd | Kevin Wolf | |
1524 | 3e85c6fd | Kevin Wolf | /*
|
1525 | 3e85c6fd | Kevin Wolf | * Change the backing file. All clusters that are different from the old
|
1526 | 3e85c6fd | Kevin Wolf | * backing file are overwritten in the COW file now, so the visible content
|
1527 | 3e85c6fd | Kevin Wolf | * doesn't change when we switch the backing file.
|
1528 | 3e85c6fd | Kevin Wolf | */
|
1529 | 3e85c6fd | Kevin Wolf | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
1530 | 3e85c6fd | Kevin Wolf | if (ret == -ENOSPC) {
|
1531 | 15654a6d | Jes Sorensen | error_report("Could not change the backing file to '%s': No "
|
1532 | 15654a6d | Jes Sorensen | "space left in the file header", out_baseimg);
|
1533 | 3e85c6fd | Kevin Wolf | } else if (ret < 0) { |
1534 | 15654a6d | Jes Sorensen | error_report("Could not change the backing file to '%s': %s",
|
1535 | 3e85c6fd | Kevin Wolf | out_baseimg, strerror(-ret)); |
1536 | 3e85c6fd | Kevin Wolf | } |
1537 | 3e85c6fd | Kevin Wolf | |
1538 | 6b837bc4 | Jes Sorensen | qemu_progress_print(100, 0); |
1539 | 3e85c6fd | Kevin Wolf | /*
|
1540 | 3e85c6fd | Kevin Wolf | * TODO At this point it is possible to check if any clusters that are
|
1541 | 3e85c6fd | Kevin Wolf | * allocated in the COW file are the same in the backing file. If so, they
|
1542 | 3e85c6fd | Kevin Wolf | * could be dropped from the COW file. Don't do this before switching the
|
1543 | 3e85c6fd | Kevin Wolf | * backing file, in case of a crash this would lead to corruption.
|
1544 | 3e85c6fd | Kevin Wolf | */
|
1545 | c2abccec | MORITA Kazutaka | out:
|
1546 | 6b837bc4 | Jes Sorensen | qemu_progress_end(); |
1547 | 3e85c6fd | Kevin Wolf | /* Cleanup */
|
1548 | 3e85c6fd | Kevin Wolf | if (!unsafe) {
|
1549 | eb863add | Kevin Wolf | if (bs_old_backing != NULL) { |
1550 | eb863add | Kevin Wolf | bdrv_delete(bs_old_backing); |
1551 | eb863add | Kevin Wolf | } |
1552 | eb863add | Kevin Wolf | if (bs_new_backing != NULL) { |
1553 | eb863add | Kevin Wolf | bdrv_delete(bs_new_backing); |
1554 | eb863add | Kevin Wolf | } |
1555 | 3e85c6fd | Kevin Wolf | } |
1556 | 3e85c6fd | Kevin Wolf | |
1557 | 3e85c6fd | Kevin Wolf | bdrv_delete(bs); |
1558 | c2abccec | MORITA Kazutaka | if (ret) {
|
1559 | c2abccec | MORITA Kazutaka | return 1; |
1560 | c2abccec | MORITA Kazutaka | } |
1561 | 3e85c6fd | Kevin Wolf | return 0; |
1562 | 3e85c6fd | Kevin Wolf | } |
1563 | 3e85c6fd | Kevin Wolf | |
1564 | ae6b0ed6 | Stefan Hajnoczi | static int img_resize(int argc, char **argv) |
1565 | ae6b0ed6 | Stefan Hajnoczi | { |
1566 | ae6b0ed6 | Stefan Hajnoczi | int c, ret, relative;
|
1567 | ae6b0ed6 | Stefan Hajnoczi | const char *filename, *fmt, *size; |
1568 | ae6b0ed6 | Stefan Hajnoczi | int64_t n, total_size; |
1569 | 2a81998a | Jes Sorensen | BlockDriverState *bs = NULL;
|
1570 | 20caf0f7 | Dong Xu Wang | QemuOpts *param; |
1571 | 20caf0f7 | Dong Xu Wang | static QemuOptsList resize_options = {
|
1572 | 20caf0f7 | Dong Xu Wang | .name = "resize_options",
|
1573 | 20caf0f7 | Dong Xu Wang | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), |
1574 | 20caf0f7 | Dong Xu Wang | .desc = { |
1575 | 20caf0f7 | Dong Xu Wang | { |
1576 | 20caf0f7 | Dong Xu Wang | .name = BLOCK_OPT_SIZE, |
1577 | 20caf0f7 | Dong Xu Wang | .type = QEMU_OPT_SIZE, |
1578 | 20caf0f7 | Dong Xu Wang | .help = "Virtual disk size"
|
1579 | 20caf0f7 | Dong Xu Wang | }, { |
1580 | 20caf0f7 | Dong Xu Wang | /* end of list */
|
1581 | 20caf0f7 | Dong Xu Wang | } |
1582 | ae6b0ed6 | Stefan Hajnoczi | }, |
1583 | ae6b0ed6 | Stefan Hajnoczi | }; |
1584 | ae6b0ed6 | Stefan Hajnoczi | |
1585 | e80fec7f | Kevin Wolf | /* Remove size from argv manually so that negative numbers are not treated
|
1586 | e80fec7f | Kevin Wolf | * as options by getopt. */
|
1587 | e80fec7f | Kevin Wolf | if (argc < 3) { |
1588 | e80fec7f | Kevin Wolf | help(); |
1589 | e80fec7f | Kevin Wolf | return 1; |
1590 | e80fec7f | Kevin Wolf | } |
1591 | e80fec7f | Kevin Wolf | |
1592 | e80fec7f | Kevin Wolf | size = argv[--argc]; |
1593 | e80fec7f | Kevin Wolf | |
1594 | e80fec7f | Kevin Wolf | /* Parse getopt arguments */
|
1595 | ae6b0ed6 | Stefan Hajnoczi | fmt = NULL;
|
1596 | ae6b0ed6 | Stefan Hajnoczi | for(;;) {
|
1597 | ae6b0ed6 | Stefan Hajnoczi | c = getopt(argc, argv, "f:h");
|
1598 | ae6b0ed6 | Stefan Hajnoczi | if (c == -1) { |
1599 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1600 | ae6b0ed6 | Stefan Hajnoczi | } |
1601 | ae6b0ed6 | Stefan Hajnoczi | switch(c) {
|
1602 | ef87394c | Jes Sorensen | case '?': |
1603 | ae6b0ed6 | Stefan Hajnoczi | case 'h': |
1604 | ae6b0ed6 | Stefan Hajnoczi | help(); |
1605 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1606 | ae6b0ed6 | Stefan Hajnoczi | case 'f': |
1607 | ae6b0ed6 | Stefan Hajnoczi | fmt = optarg; |
1608 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1609 | ae6b0ed6 | Stefan Hajnoczi | } |
1610 | ae6b0ed6 | Stefan Hajnoczi | } |
1611 | e80fec7f | Kevin Wolf | if (optind >= argc) {
|
1612 | ae6b0ed6 | Stefan Hajnoczi | help(); |
1613 | ae6b0ed6 | Stefan Hajnoczi | } |
1614 | ae6b0ed6 | Stefan Hajnoczi | filename = argv[optind++]; |
1615 | ae6b0ed6 | Stefan Hajnoczi | |
1616 | ae6b0ed6 | Stefan Hajnoczi | /* Choose grow, shrink, or absolute resize mode */
|
1617 | ae6b0ed6 | Stefan Hajnoczi | switch (size[0]) { |
1618 | ae6b0ed6 | Stefan Hajnoczi | case '+': |
1619 | ae6b0ed6 | Stefan Hajnoczi | relative = 1;
|
1620 | ae6b0ed6 | Stefan Hajnoczi | size++; |
1621 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1622 | ae6b0ed6 | Stefan Hajnoczi | case '-': |
1623 | ae6b0ed6 | Stefan Hajnoczi | relative = -1;
|
1624 | ae6b0ed6 | Stefan Hajnoczi | size++; |
1625 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1626 | ae6b0ed6 | Stefan Hajnoczi | default:
|
1627 | ae6b0ed6 | Stefan Hajnoczi | relative = 0;
|
1628 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1629 | ae6b0ed6 | Stefan Hajnoczi | } |
1630 | ae6b0ed6 | Stefan Hajnoczi | |
1631 | ae6b0ed6 | Stefan Hajnoczi | /* Parse size */
|
1632 | 20caf0f7 | Dong Xu Wang | param = qemu_opts_create(&resize_options, NULL, 0, NULL); |
1633 | 20caf0f7 | Dong Xu Wang | if (qemu_opt_set(param, BLOCK_OPT_SIZE, size)) {
|
1634 | ae6b0ed6 | Stefan Hajnoczi | /* Error message already printed when size parsing fails */
|
1635 | 2a81998a | Jes Sorensen | ret = -1;
|
1636 | 20caf0f7 | Dong Xu Wang | qemu_opts_del(param); |
1637 | 2a81998a | Jes Sorensen | goto out;
|
1638 | ae6b0ed6 | Stefan Hajnoczi | } |
1639 | 20caf0f7 | Dong Xu Wang | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
|
1640 | 20caf0f7 | Dong Xu Wang | qemu_opts_del(param); |
1641 | ae6b0ed6 | Stefan Hajnoczi | |
1642 | ae6b0ed6 | Stefan Hajnoczi | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR); |
1643 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1644 | 2a81998a | Jes Sorensen | ret = -1;
|
1645 | 2a81998a | Jes Sorensen | goto out;
|
1646 | c2abccec | MORITA Kazutaka | } |
1647 | ae6b0ed6 | Stefan Hajnoczi | |
1648 | ae6b0ed6 | Stefan Hajnoczi | if (relative) {
|
1649 | ae6b0ed6 | Stefan Hajnoczi | total_size = bdrv_getlength(bs) + n * relative; |
1650 | ae6b0ed6 | Stefan Hajnoczi | } else {
|
1651 | ae6b0ed6 | Stefan Hajnoczi | total_size = n; |
1652 | ae6b0ed6 | Stefan Hajnoczi | } |
1653 | ae6b0ed6 | Stefan Hajnoczi | if (total_size <= 0) { |
1654 | 15654a6d | Jes Sorensen | error_report("New image size must be positive");
|
1655 | c2abccec | MORITA Kazutaka | ret = -1;
|
1656 | c2abccec | MORITA Kazutaka | goto out;
|
1657 | ae6b0ed6 | Stefan Hajnoczi | } |
1658 | ae6b0ed6 | Stefan Hajnoczi | |
1659 | ae6b0ed6 | Stefan Hajnoczi | ret = bdrv_truncate(bs, total_size); |
1660 | ae6b0ed6 | Stefan Hajnoczi | switch (ret) {
|
1661 | ae6b0ed6 | Stefan Hajnoczi | case 0: |
1662 | ae6b0ed6 | Stefan Hajnoczi | printf("Image resized.\n");
|
1663 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1664 | ae6b0ed6 | Stefan Hajnoczi | case -ENOTSUP:
|
1665 | 259b2173 | Kevin Wolf | error_report("This image does not support resize");
|
1666 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1667 | ae6b0ed6 | Stefan Hajnoczi | case -EACCES:
|
1668 | 15654a6d | Jes Sorensen | error_report("Image is read-only");
|
1669 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1670 | ae6b0ed6 | Stefan Hajnoczi | default:
|
1671 | 15654a6d | Jes Sorensen | error_report("Error resizing image (%d)", -ret);
|
1672 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1673 | ae6b0ed6 | Stefan Hajnoczi | } |
1674 | c2abccec | MORITA Kazutaka | out:
|
1675 | 2a81998a | Jes Sorensen | if (bs) {
|
1676 | 2a81998a | Jes Sorensen | bdrv_delete(bs); |
1677 | 2a81998a | Jes Sorensen | } |
1678 | c2abccec | MORITA Kazutaka | if (ret) {
|
1679 | c2abccec | MORITA Kazutaka | return 1; |
1680 | c2abccec | MORITA Kazutaka | } |
1681 | ae6b0ed6 | Stefan Hajnoczi | return 0; |
1682 | ae6b0ed6 | Stefan Hajnoczi | } |
1683 | ae6b0ed6 | Stefan Hajnoczi | |
1684 | c227f099 | Anthony Liguori | static const img_cmd_t img_cmds[] = { |
1685 | 153859be | Stuart Brady | #define DEF(option, callback, arg_string) \
|
1686 | 153859be | Stuart Brady | { option, callback }, |
1687 | 153859be | Stuart Brady | #include "qemu-img-cmds.h" |
1688 | 153859be | Stuart Brady | #undef DEF
|
1689 | 153859be | Stuart Brady | #undef GEN_DOCS
|
1690 | 153859be | Stuart Brady | { NULL, NULL, }, |
1691 | 153859be | Stuart Brady | }; |
1692 | 153859be | Stuart Brady | |
1693 | ea2384d3 | bellard | int main(int argc, char **argv) |
1694 | ea2384d3 | bellard | { |
1695 | c227f099 | Anthony Liguori | const img_cmd_t *cmd;
|
1696 | 153859be | Stuart Brady | const char *cmdname; |
1697 | ea2384d3 | bellard | |
1698 | 53f76e58 | Kevin Wolf | error_set_progname(argv[0]);
|
1699 | 53f76e58 | Kevin Wolf | |
1700 | ea2384d3 | bellard | bdrv_init(); |
1701 | ea2384d3 | bellard | if (argc < 2) |
1702 | ea2384d3 | bellard | help(); |
1703 | 153859be | Stuart Brady | cmdname = argv[1];
|
1704 | 8f9b157e | aurel32 | argc--; argv++; |
1705 | 153859be | Stuart Brady | |
1706 | 67d384e8 | Zhi Yong Wu | qemu_init_main_loop(); |
1707 | 67d384e8 | Zhi Yong Wu | |
1708 | 153859be | Stuart Brady | /* find the command */
|
1709 | 153859be | Stuart Brady | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
1710 | 153859be | Stuart Brady | if (!strcmp(cmdname, cmd->name)) {
|
1711 | 153859be | Stuart Brady | return cmd->handler(argc, argv);
|
1712 | 153859be | Stuart Brady | } |
1713 | ea2384d3 | bellard | } |
1714 | 153859be | Stuart Brady | |
1715 | 153859be | Stuart Brady | /* not found */
|
1716 | 153859be | Stuart Brady | help(); |
1717 | ea2384d3 | bellard | return 0; |
1718 | ea2384d3 | bellard | } |