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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 | c054b3fd | Benoît Canet | #include "qapi-visit.h" |
25 | c054b3fd | Benoît Canet | #include "qapi/qmp-output-visitor.h" |
26 | c054b3fd | Benoît Canet | #include "qjson.h" |
27 | faf07963 | pbrook | #include "qemu-common.h" |
28 | 9ea2ea71 | Kevin Wolf | #include "qemu-option.h" |
29 | 53f76e58 | Kevin Wolf | #include "qemu-error.h" |
30 | f7b4a940 | aliguori | #include "osdep.h" |
31 | dc786bc9 | Jes Sorensen | #include "sysemu.h" |
32 | ec36ba14 | ths | #include "block_int.h" |
33 | c054b3fd | Benoît Canet | #include <getopt.h> |
34 | 9230eaf6 | aliguori | #include <stdio.h> |
35 | ea2384d3 | bellard | |
36 | e8445331 | bellard | #ifdef _WIN32
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37 | e8445331 | bellard | #include <windows.h> |
38 | e8445331 | bellard | #endif
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39 | e8445331 | bellard | |
40 | c227f099 | Anthony Liguori | typedef struct img_cmd_t { |
41 | 153859be | Stuart Brady | const char *name; |
42 | 153859be | Stuart Brady | int (*handler)(int argc, char **argv); |
43 | c227f099 | Anthony Liguori | } img_cmd_t; |
44 | 153859be | Stuart Brady | |
45 | 137519ce | aurel32 | /* Default to cache=writeback as data integrity is not important for qemu-tcg. */
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46 | adfe078e | Stefan Hajnoczi | #define BDRV_O_FLAGS BDRV_O_CACHE_WB
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47 | 661a0f71 | Federico Simoncelli | #define BDRV_DEFAULT_CACHE "writeback" |
48 | 137519ce | aurel32 | |
49 | ea2384d3 | bellard | static void format_print(void *opaque, const char *name) |
50 | ea2384d3 | bellard | { |
51 | ea2384d3 | bellard | printf(" %s", name);
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52 | ea2384d3 | bellard | } |
53 | ea2384d3 | bellard | |
54 | d2c639d6 | blueswir1 | /* Please keep in synch with qemu-img.texi */
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55 | 3f379ab1 | pbrook | static void help(void) |
56 | ea2384d3 | bellard | { |
57 | e00291c0 | Paolo Bonzini | const char *help_msg = |
58 | e00291c0 | Paolo Bonzini | "qemu-img version " QEMU_VERSION ", Copyright (c) 2004-2008 Fabrice Bellard\n" |
59 | 3f020d70 | malc | "usage: qemu-img command [command options]\n"
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60 | 3f020d70 | malc | "QEMU disk image utility\n"
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61 | 3f020d70 | malc | "\n"
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62 | 3f020d70 | malc | "Command syntax:\n"
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63 | 153859be | Stuart Brady | #define DEF(option, callback, arg_string) \
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64 | 153859be | Stuart Brady | " " arg_string "\n" |
65 | 153859be | Stuart Brady | #include "qemu-img-cmds.h" |
66 | 153859be | Stuart Brady | #undef DEF
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67 | 153859be | Stuart Brady | #undef GEN_DOCS
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68 | 3f020d70 | malc | "\n"
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69 | 3f020d70 | malc | "Command parameters:\n"
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70 | 3f020d70 | malc | " 'filename' is a disk image filename\n"
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71 | 3f020d70 | malc | " 'fmt' is the disk image format. It is guessed automatically in most cases\n"
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72 | 661a0f71 | Federico Simoncelli | " 'cache' is the cache mode used to write the output disk image, the valid\n"
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73 | 80ccf93b | Liu Yuan | " options are: 'none', 'writeback' (default, except for convert), 'writethrough',\n"
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74 | 80ccf93b | Liu Yuan | " 'directsync' and 'unsafe' (default for convert)\n"
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75 | 3f020d70 | malc | " 'size' is the disk image size in bytes. Optional suffixes\n"
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76 | 3f020d70 | malc | " 'k' or 'K' (kilobyte, 1024), 'M' (megabyte, 1024k), 'G' (gigabyte, 1024M)\n"
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77 | 3f020d70 | malc | " and T (terabyte, 1024G) are supported. 'b' is ignored.\n"
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78 | 3f020d70 | malc | " 'output_filename' is the destination disk image filename\n"
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79 | 3f020d70 | malc | " 'output_fmt' is the destination format\n"
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80 | 3f020d70 | malc | " 'options' is a comma separated list of format specific options in a\n"
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81 | 3f020d70 | malc | " name=value format. Use -o ? for an overview of the options supported by the\n"
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82 | 3f020d70 | malc | " used format\n"
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83 | 3f020d70 | malc | " '-c' indicates that target image must be compressed (qcow format only)\n"
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84 | 3f020d70 | malc | " '-u' enables unsafe rebasing. It is assumed that old and new backing file\n"
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85 | 3f020d70 | malc | " match exactly. The image doesn't need a working backing file before\n"
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86 | 3f020d70 | malc | " rebasing in this case (useful for renaming the backing file)\n"
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87 | 3f020d70 | malc | " '-h' with or without a command shows this help and lists the supported formats\n"
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88 | 6b837bc4 | Jes Sorensen | " '-p' show progress of command (only certain commands)\n"
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89 | a22f123c | Kevin Wolf | " '-S' indicates the consecutive number of bytes that must contain only zeros\n"
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90 | a22f123c | Kevin Wolf | " for qemu-img to create a sparse image during conversion\n"
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91 | c054b3fd | Benoît Canet | " '--output' takes the format in which the output must be done (human or json)\n"
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92 | 3f020d70 | malc | "\n"
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93 | 4534ff54 | Kevin Wolf | "Parameters to check subcommand:\n"
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94 | 4534ff54 | Kevin Wolf | " '-r' tries to repair any inconsistencies that are found during the check.\n"
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95 | 4534ff54 | Kevin Wolf | " '-r leaks' repairs only cluster leaks, whereas '-r all' fixes all\n"
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96 | 4534ff54 | Kevin Wolf | " kinds of errors, with a higher risk of choosing the wrong fix or\n"
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97 | 0546b8c2 | Stefan Weil | " hiding corruption that has already occurred.\n"
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98 | 4534ff54 | Kevin Wolf | "\n"
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99 | 3f020d70 | malc | "Parameters to snapshot subcommand:\n"
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100 | 3f020d70 | malc | " 'snapshot' is the name of the snapshot to create, apply or delete\n"
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101 | 3f020d70 | malc | " '-a' applies a snapshot (revert disk to saved state)\n"
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102 | 3f020d70 | malc | " '-c' creates a snapshot\n"
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103 | 3f020d70 | malc | " '-d' deletes a snapshot\n"
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104 | e00291c0 | Paolo Bonzini | " '-l' lists all snapshots in the given image\n";
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105 | e00291c0 | Paolo Bonzini | |
106 | e00291c0 | Paolo Bonzini | printf("%s\nSupported formats:", help_msg);
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107 | ea2384d3 | bellard | bdrv_iterate_format(format_print, NULL);
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108 | ea2384d3 | bellard | printf("\n");
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109 | ea2384d3 | bellard | exit(1);
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110 | ea2384d3 | bellard | } |
111 | ea2384d3 | bellard | |
112 | ea2384d3 | bellard | #if defined(WIN32)
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113 | ea2384d3 | bellard | /* XXX: put correct support for win32 */
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114 | ea2384d3 | bellard | static int read_password(char *buf, int buf_size) |
115 | ea2384d3 | bellard | { |
116 | ea2384d3 | bellard | int c, i;
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117 | ea2384d3 | bellard | printf("Password: ");
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118 | ea2384d3 | bellard | fflush(stdout); |
119 | ea2384d3 | bellard | i = 0;
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120 | ea2384d3 | bellard | for(;;) {
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121 | ea2384d3 | bellard | c = getchar(); |
122 | ea2384d3 | bellard | if (c == '\n') |
123 | ea2384d3 | bellard | break;
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124 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
125 | ea2384d3 | bellard | buf[i++] = c; |
126 | ea2384d3 | bellard | } |
127 | ea2384d3 | bellard | buf[i] = '\0';
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128 | ea2384d3 | bellard | return 0; |
129 | ea2384d3 | bellard | } |
130 | ea2384d3 | bellard | |
131 | ea2384d3 | bellard | #else
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132 | ea2384d3 | bellard | |
133 | ea2384d3 | bellard | #include <termios.h> |
134 | ea2384d3 | bellard | |
135 | ea2384d3 | bellard | static struct termios oldtty; |
136 | ea2384d3 | bellard | |
137 | ea2384d3 | bellard | static void term_exit(void) |
138 | ea2384d3 | bellard | { |
139 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &oldtty);
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140 | ea2384d3 | bellard | } |
141 | ea2384d3 | bellard | |
142 | ea2384d3 | bellard | static void term_init(void) |
143 | ea2384d3 | bellard | { |
144 | ea2384d3 | bellard | struct termios tty;
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145 | ea2384d3 | bellard | |
146 | ea2384d3 | bellard | tcgetattr (0, &tty);
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147 | ea2384d3 | bellard | oldtty = tty; |
148 | ea2384d3 | bellard | |
149 | ea2384d3 | bellard | tty.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP |
150 | ea2384d3 | bellard | |INLCR|IGNCR|ICRNL|IXON); |
151 | ea2384d3 | bellard | tty.c_oflag |= OPOST; |
152 | ea2384d3 | bellard | tty.c_lflag &= ~(ECHO|ECHONL|ICANON|IEXTEN); |
153 | ea2384d3 | bellard | tty.c_cflag &= ~(CSIZE|PARENB); |
154 | ea2384d3 | bellard | tty.c_cflag |= CS8; |
155 | ea2384d3 | bellard | tty.c_cc[VMIN] = 1;
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156 | ea2384d3 | bellard | tty.c_cc[VTIME] = 0;
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157 | 3b46e624 | ths | |
158 | ea2384d3 | bellard | tcsetattr (0, TCSANOW, &tty);
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159 | ea2384d3 | bellard | |
160 | ea2384d3 | bellard | atexit(term_exit); |
161 | ea2384d3 | bellard | } |
162 | ea2384d3 | bellard | |
163 | 3f379ab1 | pbrook | static int read_password(char *buf, int buf_size) |
164 | ea2384d3 | bellard | { |
165 | ea2384d3 | bellard | uint8_t ch; |
166 | ea2384d3 | bellard | int i, ret;
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167 | ea2384d3 | bellard | |
168 | ea2384d3 | bellard | printf("password: ");
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169 | ea2384d3 | bellard | fflush(stdout); |
170 | ea2384d3 | bellard | term_init(); |
171 | ea2384d3 | bellard | i = 0;
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172 | ea2384d3 | bellard | for(;;) {
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173 | ea2384d3 | bellard | ret = read(0, &ch, 1); |
174 | ea2384d3 | bellard | if (ret == -1) { |
175 | ea2384d3 | bellard | if (errno == EAGAIN || errno == EINTR) {
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176 | ea2384d3 | bellard | continue;
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177 | ea2384d3 | bellard | } else {
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178 | ea2384d3 | bellard | ret = -1;
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179 | ea2384d3 | bellard | break;
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180 | ea2384d3 | bellard | } |
181 | ea2384d3 | bellard | } else if (ret == 0) { |
182 | ea2384d3 | bellard | ret = -1;
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183 | ea2384d3 | bellard | break;
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184 | ea2384d3 | bellard | } else {
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185 | ea2384d3 | bellard | if (ch == '\r') { |
186 | ea2384d3 | bellard | ret = 0;
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187 | ea2384d3 | bellard | break;
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188 | ea2384d3 | bellard | } |
189 | ea2384d3 | bellard | if (i < (buf_size - 1)) |
190 | ea2384d3 | bellard | buf[i++] = ch; |
191 | ea2384d3 | bellard | } |
192 | ea2384d3 | bellard | } |
193 | ea2384d3 | bellard | term_exit(); |
194 | ea2384d3 | bellard | buf[i] = '\0';
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195 | ea2384d3 | bellard | printf("\n");
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196 | ea2384d3 | bellard | return ret;
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197 | ea2384d3 | bellard | } |
198 | ea2384d3 | bellard | #endif
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199 | ea2384d3 | bellard | |
200 | 4ac8aacd | Jes Sorensen | static int print_block_option_help(const char *filename, const char *fmt) |
201 | 4ac8aacd | Jes Sorensen | { |
202 | 4ac8aacd | Jes Sorensen | BlockDriver *drv, *proto_drv; |
203 | 4ac8aacd | Jes Sorensen | QEMUOptionParameter *create_options = NULL;
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204 | 4ac8aacd | Jes Sorensen | |
205 | 4ac8aacd | Jes Sorensen | /* Find driver and parse its options */
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206 | 4ac8aacd | Jes Sorensen | drv = bdrv_find_format(fmt); |
207 | 4ac8aacd | Jes Sorensen | if (!drv) {
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208 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", fmt);
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209 | 4ac8aacd | Jes Sorensen | return 1; |
210 | 4ac8aacd | Jes Sorensen | } |
211 | 4ac8aacd | Jes Sorensen | |
212 | 4ac8aacd | Jes Sorensen | proto_drv = bdrv_find_protocol(filename); |
213 | 4ac8aacd | Jes Sorensen | if (!proto_drv) {
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214 | 15654a6d | Jes Sorensen | error_report("Unknown protocol '%s'", filename);
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215 | 4ac8aacd | Jes Sorensen | return 1; |
216 | 4ac8aacd | Jes Sorensen | } |
217 | 4ac8aacd | Jes Sorensen | |
218 | 4ac8aacd | Jes Sorensen | create_options = append_option_parameters(create_options, |
219 | 4ac8aacd | Jes Sorensen | drv->create_options); |
220 | 4ac8aacd | Jes Sorensen | create_options = append_option_parameters(create_options, |
221 | 4ac8aacd | Jes Sorensen | proto_drv->create_options); |
222 | 4ac8aacd | Jes Sorensen | print_option_help(create_options); |
223 | 4ac8aacd | Jes Sorensen | free_option_parameters(create_options); |
224 | 4ac8aacd | Jes Sorensen | return 0; |
225 | 4ac8aacd | Jes Sorensen | } |
226 | 4ac8aacd | Jes Sorensen | |
227 | 75c23805 | bellard | static BlockDriverState *bdrv_new_open(const char *filename, |
228 | 9bc378c1 | Sheng Yang | const char *fmt, |
229 | f0536bb8 | Daniel P. Berrange | int flags,
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230 | f0536bb8 | Daniel P. Berrange | bool require_io)
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231 | 75c23805 | bellard | { |
232 | 75c23805 | bellard | BlockDriverState *bs; |
233 | 75c23805 | bellard | BlockDriver *drv; |
234 | 75c23805 | bellard | char password[256]; |
235 | b9eaf9ec | Kevin Wolf | int ret;
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236 | 75c23805 | bellard | |
237 | b9eaf9ec | Kevin Wolf | bs = bdrv_new("image");
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238 | ad717139 | Kevin Wolf | |
239 | 75c23805 | bellard | if (fmt) {
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240 | 75c23805 | bellard | drv = bdrv_find_format(fmt); |
241 | c2abccec | MORITA Kazutaka | if (!drv) {
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242 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", fmt);
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243 | c2abccec | MORITA Kazutaka | goto fail;
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244 | c2abccec | MORITA Kazutaka | } |
245 | 75c23805 | bellard | } else {
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246 | 75c23805 | bellard | drv = NULL;
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247 | 75c23805 | bellard | } |
248 | b9eaf9ec | Kevin Wolf | |
249 | b9eaf9ec | Kevin Wolf | ret = bdrv_open(bs, filename, flags, drv); |
250 | b9eaf9ec | Kevin Wolf | if (ret < 0) { |
251 | b9eaf9ec | Kevin Wolf | error_report("Could not open '%s': %s", filename, strerror(-ret));
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252 | c2abccec | MORITA Kazutaka | goto fail;
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253 | 75c23805 | bellard | } |
254 | b9eaf9ec | Kevin Wolf | |
255 | f0536bb8 | Daniel P. Berrange | if (bdrv_is_encrypted(bs) && require_io) {
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256 | 75c23805 | bellard | printf("Disk image '%s' is encrypted.\n", filename);
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257 | c2abccec | MORITA Kazutaka | if (read_password(password, sizeof(password)) < 0) { |
258 | 15654a6d | Jes Sorensen | error_report("No password given");
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259 | c2abccec | MORITA Kazutaka | goto fail;
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260 | c2abccec | MORITA Kazutaka | } |
261 | c2abccec | MORITA Kazutaka | if (bdrv_set_key(bs, password) < 0) { |
262 | 15654a6d | Jes Sorensen | error_report("invalid password");
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263 | c2abccec | MORITA Kazutaka | goto fail;
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264 | c2abccec | MORITA Kazutaka | } |
265 | 75c23805 | bellard | } |
266 | 75c23805 | bellard | return bs;
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267 | c2abccec | MORITA Kazutaka | fail:
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268 | c2abccec | MORITA Kazutaka | if (bs) {
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269 | c2abccec | MORITA Kazutaka | bdrv_delete(bs); |
270 | c2abccec | MORITA Kazutaka | } |
271 | c2abccec | MORITA Kazutaka | return NULL; |
272 | 75c23805 | bellard | } |
273 | 75c23805 | bellard | |
274 | c2abccec | MORITA Kazutaka | static int add_old_style_options(const char *fmt, QEMUOptionParameter *list, |
275 | eec77d9e | Jes Sorensen | const char *base_filename, |
276 | eec77d9e | Jes Sorensen | const char *base_fmt) |
277 | efa84d43 | Kevin Wolf | { |
278 | efa84d43 | Kevin Wolf | if (base_filename) {
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279 | efa84d43 | Kevin Wolf | if (set_option_parameter(list, BLOCK_OPT_BACKING_FILE, base_filename)) {
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280 | 15654a6d | Jes Sorensen | error_report("Backing file not supported for file format '%s'",
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281 | 15654a6d | Jes Sorensen | fmt); |
282 | c2abccec | MORITA Kazutaka | return -1; |
283 | efa84d43 | Kevin Wolf | } |
284 | efa84d43 | Kevin Wolf | } |
285 | efa84d43 | Kevin Wolf | if (base_fmt) {
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286 | efa84d43 | Kevin Wolf | if (set_option_parameter(list, BLOCK_OPT_BACKING_FMT, base_fmt)) {
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287 | 15654a6d | Jes Sorensen | error_report("Backing file format not supported for file "
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288 | 15654a6d | Jes Sorensen | "format '%s'", fmt);
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289 | c2abccec | MORITA Kazutaka | return -1; |
290 | efa84d43 | Kevin Wolf | } |
291 | efa84d43 | Kevin Wolf | } |
292 | c2abccec | MORITA Kazutaka | return 0; |
293 | efa84d43 | Kevin Wolf | } |
294 | efa84d43 | Kevin Wolf | |
295 | ea2384d3 | bellard | static int img_create(int argc, char **argv) |
296 | ea2384d3 | bellard | { |
297 | eec77d9e | Jes Sorensen | int c, ret = 0; |
298 | 1da7cfbd | Jes Sorensen | uint64_t img_size = -1;
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299 | ea2384d3 | bellard | const char *fmt = "raw"; |
300 | 9230eaf6 | aliguori | const char *base_fmt = NULL; |
301 | ea2384d3 | bellard | const char *filename; |
302 | ea2384d3 | bellard | const char *base_filename = NULL; |
303 | 9ea2ea71 | Kevin Wolf | char *options = NULL; |
304 | 3b46e624 | ths | |
305 | ea2384d3 | bellard | for(;;) {
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306 | 9ea2ea71 | Kevin Wolf | c = getopt(argc, argv, "F:b:f:he6o:");
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307 | b8fb60da | Jes Sorensen | if (c == -1) { |
308 | ea2384d3 | bellard | break;
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309 | b8fb60da | Jes Sorensen | } |
310 | ea2384d3 | bellard | switch(c) {
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311 | ef87394c | Jes Sorensen | case '?': |
312 | ea2384d3 | bellard | case 'h': |
313 | ea2384d3 | bellard | help(); |
314 | ea2384d3 | bellard | break;
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315 | 9230eaf6 | aliguori | case 'F': |
316 | 9230eaf6 | aliguori | base_fmt = optarg; |
317 | 9230eaf6 | aliguori | break;
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318 | ea2384d3 | bellard | case 'b': |
319 | ea2384d3 | bellard | base_filename = optarg; |
320 | ea2384d3 | bellard | break;
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321 | ea2384d3 | bellard | case 'f': |
322 | ea2384d3 | bellard | fmt = optarg; |
323 | ea2384d3 | bellard | break;
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324 | ea2384d3 | bellard | case 'e': |
325 | 9d42e15d | Markus Armbruster | error_report("option -e is deprecated, please use \'-o "
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326 | eec77d9e | Jes Sorensen | "encryption\' instead!");
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327 | eec77d9e | Jes Sorensen | return 1; |
328 | d8871c5a | ths | case '6': |
329 | 9d42e15d | Markus Armbruster | error_report("option -6 is deprecated, please use \'-o "
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330 | eec77d9e | Jes Sorensen | "compat6\' instead!");
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331 | eec77d9e | Jes Sorensen | return 1; |
332 | 9ea2ea71 | Kevin Wolf | case 'o': |
333 | 9ea2ea71 | Kevin Wolf | options = optarg; |
334 | 9ea2ea71 | Kevin Wolf | break;
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335 | ea2384d3 | bellard | } |
336 | ea2384d3 | bellard | } |
337 | 9230eaf6 | aliguori | |
338 | b50cbabc | MORITA Kazutaka | /* Get the filename */
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339 | b8fb60da | Jes Sorensen | if (optind >= argc) {
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340 | b50cbabc | MORITA Kazutaka | help(); |
341 | b8fb60da | Jes Sorensen | } |
342 | b50cbabc | MORITA Kazutaka | filename = argv[optind++]; |
343 | b50cbabc | MORITA Kazutaka | |
344 | 1da7cfbd | Jes Sorensen | /* Get image size, if specified */
|
345 | 1da7cfbd | Jes Sorensen | if (optind < argc) {
|
346 | 70b4f4bb | Jes Sorensen | int64_t sval; |
347 | e36b3695 | Markus Armbruster | char *end;
|
348 | e36b3695 | Markus Armbruster | sval = strtosz_suffix(argv[optind++], &end, STRTOSZ_DEFSUFFIX_B); |
349 | e36b3695 | Markus Armbruster | if (sval < 0 || *end) { |
350 | 15654a6d | Jes Sorensen | error_report("Invalid image size specified! You may use k, M, G or "
|
351 | 1da7cfbd | Jes Sorensen | "T suffixes for ");
|
352 | 15654a6d | Jes Sorensen | error_report("kilobytes, megabytes, gigabytes and terabytes.");
|
353 | 1da7cfbd | Jes Sorensen | ret = -1;
|
354 | 1da7cfbd | Jes Sorensen | goto out;
|
355 | 1da7cfbd | Jes Sorensen | } |
356 | 1da7cfbd | Jes Sorensen | img_size = (uint64_t)sval; |
357 | 1da7cfbd | Jes Sorensen | } |
358 | 1da7cfbd | Jes Sorensen | |
359 | c8057f95 | Peter Maydell | if (options && is_help_option(options)) {
|
360 | 4ac8aacd | Jes Sorensen | ret = print_block_option_help(filename, fmt); |
361 | 4ac8aacd | Jes Sorensen | goto out;
|
362 | 4ac8aacd | Jes Sorensen | } |
363 | 4ac8aacd | Jes Sorensen | |
364 | f88e1a42 | Jes Sorensen | ret = bdrv_img_create(filename, fmt, base_filename, base_fmt, |
365 | f88e1a42 | Jes Sorensen | options, img_size, BDRV_O_FLAGS); |
366 | c2abccec | MORITA Kazutaka | out:
|
367 | c2abccec | MORITA Kazutaka | if (ret) {
|
368 | c2abccec | MORITA Kazutaka | return 1; |
369 | c2abccec | MORITA Kazutaka | } |
370 | ea2384d3 | bellard | return 0; |
371 | ea2384d3 | bellard | } |
372 | ea2384d3 | bellard | |
373 | e076f338 | Kevin Wolf | /*
|
374 | e076f338 | Kevin Wolf | * Checks an image for consistency. Exit codes:
|
375 | e076f338 | Kevin Wolf | *
|
376 | e076f338 | Kevin Wolf | * 0 - Check completed, image is good
|
377 | e076f338 | Kevin Wolf | * 1 - Check not completed because of internal errors
|
378 | e076f338 | Kevin Wolf | * 2 - Check completed, image is corrupted
|
379 | e076f338 | Kevin Wolf | * 3 - Check completed, image has leaked clusters, but is good otherwise
|
380 | e076f338 | Kevin Wolf | */
|
381 | 1585969c | aliguori | static int img_check(int argc, char **argv) |
382 | 1585969c | aliguori | { |
383 | 1585969c | aliguori | int c, ret;
|
384 | 1585969c | aliguori | const char *filename, *fmt; |
385 | 1585969c | aliguori | BlockDriverState *bs; |
386 | e076f338 | Kevin Wolf | BdrvCheckResult result; |
387 | 4534ff54 | Kevin Wolf | int fix = 0; |
388 | 058f8f16 | Stefan Hajnoczi | int flags = BDRV_O_FLAGS | BDRV_O_CHECK;
|
389 | 1585969c | aliguori | |
390 | 1585969c | aliguori | fmt = NULL;
|
391 | 1585969c | aliguori | for(;;) {
|
392 | 4534ff54 | Kevin Wolf | c = getopt(argc, argv, "f:hr:");
|
393 | b8fb60da | Jes Sorensen | if (c == -1) { |
394 | 1585969c | aliguori | break;
|
395 | b8fb60da | Jes Sorensen | } |
396 | 1585969c | aliguori | switch(c) {
|
397 | ef87394c | Jes Sorensen | case '?': |
398 | 1585969c | aliguori | case 'h': |
399 | 1585969c | aliguori | help(); |
400 | 1585969c | aliguori | break;
|
401 | 1585969c | aliguori | case 'f': |
402 | 1585969c | aliguori | fmt = optarg; |
403 | 1585969c | aliguori | break;
|
404 | 4534ff54 | Kevin Wolf | case 'r': |
405 | 4534ff54 | Kevin Wolf | flags |= BDRV_O_RDWR; |
406 | 4534ff54 | Kevin Wolf | |
407 | 4534ff54 | Kevin Wolf | if (!strcmp(optarg, "leaks")) { |
408 | 4534ff54 | Kevin Wolf | fix = BDRV_FIX_LEAKS; |
409 | 4534ff54 | Kevin Wolf | } else if (!strcmp(optarg, "all")) { |
410 | 4534ff54 | Kevin Wolf | fix = BDRV_FIX_LEAKS | BDRV_FIX_ERRORS; |
411 | 4534ff54 | Kevin Wolf | } else {
|
412 | 4534ff54 | Kevin Wolf | help(); |
413 | 4534ff54 | Kevin Wolf | } |
414 | 4534ff54 | Kevin Wolf | break;
|
415 | 1585969c | aliguori | } |
416 | 1585969c | aliguori | } |
417 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
418 | 1585969c | aliguori | help(); |
419 | b8fb60da | Jes Sorensen | } |
420 | 1585969c | aliguori | filename = argv[optind++]; |
421 | 1585969c | aliguori | |
422 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, fmt, flags, true);
|
423 | c2abccec | MORITA Kazutaka | if (!bs) {
|
424 | c2abccec | MORITA Kazutaka | return 1; |
425 | c2abccec | MORITA Kazutaka | } |
426 | 4534ff54 | Kevin Wolf | ret = bdrv_check(bs, &result, fix); |
427 | e076f338 | Kevin Wolf | |
428 | e076f338 | Kevin Wolf | if (ret == -ENOTSUP) {
|
429 | 15654a6d | Jes Sorensen | error_report("This image format does not support checks");
|
430 | e076f338 | Kevin Wolf | bdrv_delete(bs); |
431 | e076f338 | Kevin Wolf | return 1; |
432 | e076f338 | Kevin Wolf | } |
433 | e076f338 | Kevin Wolf | |
434 | ccf34716 | Kevin Wolf | if (result.corruptions_fixed || result.leaks_fixed) {
|
435 | ccf34716 | Kevin Wolf | printf("The following inconsistencies were found and repaired:\n\n"
|
436 | ccf34716 | Kevin Wolf | " %d leaked clusters\n"
|
437 | ccf34716 | Kevin Wolf | " %d corruptions\n\n"
|
438 | ccf34716 | Kevin Wolf | "Double checking the fixed image now...\n",
|
439 | ccf34716 | Kevin Wolf | result.leaks_fixed, |
440 | ccf34716 | Kevin Wolf | result.corruptions_fixed); |
441 | ccf34716 | Kevin Wolf | ret = bdrv_check(bs, &result, 0);
|
442 | ccf34716 | Kevin Wolf | } |
443 | ccf34716 | Kevin Wolf | |
444 | e076f338 | Kevin Wolf | if (!(result.corruptions || result.leaks || result.check_errors)) {
|
445 | e076f338 | Kevin Wolf | printf("No errors were found on the image.\n");
|
446 | e076f338 | Kevin Wolf | } else {
|
447 | e076f338 | Kevin Wolf | if (result.corruptions) {
|
448 | e076f338 | Kevin Wolf | printf("\n%d errors were found on the image.\n"
|
449 | e076f338 | Kevin Wolf | "Data may be corrupted, or further writes to the image "
|
450 | e076f338 | Kevin Wolf | "may corrupt it.\n",
|
451 | e076f338 | Kevin Wolf | result.corruptions); |
452 | e076f338 | Kevin Wolf | } |
453 | e076f338 | Kevin Wolf | |
454 | e076f338 | Kevin Wolf | if (result.leaks) {
|
455 | e076f338 | Kevin Wolf | printf("\n%d leaked clusters were found on the image.\n"
|
456 | e076f338 | Kevin Wolf | "This means waste of disk space, but no harm to data.\n",
|
457 | e076f338 | Kevin Wolf | result.leaks); |
458 | e076f338 | Kevin Wolf | } |
459 | e076f338 | Kevin Wolf | |
460 | e076f338 | Kevin Wolf | if (result.check_errors) {
|
461 | e076f338 | Kevin Wolf | printf("\n%d internal errors have occurred during the check.\n",
|
462 | e076f338 | Kevin Wolf | result.check_errors); |
463 | 1585969c | aliguori | } |
464 | 1585969c | aliguori | } |
465 | 1585969c | aliguori | |
466 | f8111c24 | Dong Xu Wang | if (result.bfi.total_clusters != 0 && result.bfi.allocated_clusters != 0) { |
467 | f8111c24 | Dong Xu Wang | printf("%" PRId64 "/%" PRId64 "= %0.2f%% allocated, %0.2f%% fragmented\n", |
468 | f8111c24 | Dong Xu Wang | result.bfi.allocated_clusters, result.bfi.total_clusters, |
469 | f8111c24 | Dong Xu Wang | result.bfi.allocated_clusters * 100.0 / result.bfi.total_clusters, |
470 | f8111c24 | Dong Xu Wang | result.bfi.fragmented_clusters * 100.0 / result.bfi.allocated_clusters); |
471 | f8111c24 | Dong Xu Wang | } |
472 | f8111c24 | Dong Xu Wang | |
473 | 1585969c | aliguori | bdrv_delete(bs); |
474 | e076f338 | Kevin Wolf | |
475 | e076f338 | Kevin Wolf | if (ret < 0 || result.check_errors) { |
476 | e076f338 | Kevin Wolf | printf("\nAn error has occurred during the check: %s\n"
|
477 | e076f338 | Kevin Wolf | "The check is not complete and may have missed error.\n",
|
478 | e076f338 | Kevin Wolf | strerror(-ret)); |
479 | c2abccec | MORITA Kazutaka | return 1; |
480 | c2abccec | MORITA Kazutaka | } |
481 | e076f338 | Kevin Wolf | |
482 | e076f338 | Kevin Wolf | if (result.corruptions) {
|
483 | e076f338 | Kevin Wolf | return 2; |
484 | e076f338 | Kevin Wolf | } else if (result.leaks) { |
485 | e076f338 | Kevin Wolf | return 3; |
486 | e076f338 | Kevin Wolf | } else {
|
487 | e076f338 | Kevin Wolf | return 0; |
488 | e076f338 | Kevin Wolf | } |
489 | 1585969c | aliguori | } |
490 | 1585969c | aliguori | |
491 | ea2384d3 | bellard | static int img_commit(int argc, char **argv) |
492 | ea2384d3 | bellard | { |
493 | 661a0f71 | Federico Simoncelli | int c, ret, flags;
|
494 | 661a0f71 | Federico Simoncelli | const char *filename, *fmt, *cache; |
495 | ea2384d3 | bellard | BlockDriverState *bs; |
496 | ea2384d3 | bellard | |
497 | ea2384d3 | bellard | fmt = NULL;
|
498 | 661a0f71 | Federico Simoncelli | cache = BDRV_DEFAULT_CACHE; |
499 | ea2384d3 | bellard | for(;;) {
|
500 | 661a0f71 | Federico Simoncelli | c = getopt(argc, argv, "f:ht:");
|
501 | b8fb60da | Jes Sorensen | if (c == -1) { |
502 | ea2384d3 | bellard | break;
|
503 | b8fb60da | Jes Sorensen | } |
504 | ea2384d3 | bellard | switch(c) {
|
505 | ef87394c | Jes Sorensen | case '?': |
506 | ea2384d3 | bellard | case 'h': |
507 | ea2384d3 | bellard | help(); |
508 | ea2384d3 | bellard | break;
|
509 | ea2384d3 | bellard | case 'f': |
510 | ea2384d3 | bellard | fmt = optarg; |
511 | ea2384d3 | bellard | break;
|
512 | 661a0f71 | Federico Simoncelli | case 't': |
513 | 661a0f71 | Federico Simoncelli | cache = optarg; |
514 | 661a0f71 | Federico Simoncelli | break;
|
515 | ea2384d3 | bellard | } |
516 | ea2384d3 | bellard | } |
517 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
518 | ea2384d3 | bellard | help(); |
519 | b8fb60da | Jes Sorensen | } |
520 | ea2384d3 | bellard | filename = argv[optind++]; |
521 | ea2384d3 | bellard | |
522 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR; |
523 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
524 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
525 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
526 | 661a0f71 | Federico Simoncelli | return -1; |
527 | 661a0f71 | Federico Simoncelli | } |
528 | 661a0f71 | Federico Simoncelli | |
529 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, fmt, flags, true);
|
530 | c2abccec | MORITA Kazutaka | if (!bs) {
|
531 | c2abccec | MORITA Kazutaka | return 1; |
532 | c2abccec | MORITA Kazutaka | } |
533 | ea2384d3 | bellard | ret = bdrv_commit(bs); |
534 | ea2384d3 | bellard | switch(ret) {
|
535 | ea2384d3 | bellard | case 0: |
536 | ea2384d3 | bellard | printf("Image committed.\n");
|
537 | ea2384d3 | bellard | break;
|
538 | ea2384d3 | bellard | case -ENOENT:
|
539 | 15654a6d | Jes Sorensen | error_report("No disk inserted");
|
540 | ea2384d3 | bellard | break;
|
541 | ea2384d3 | bellard | case -EACCES:
|
542 | 15654a6d | Jes Sorensen | error_report("Image is read-only");
|
543 | ea2384d3 | bellard | break;
|
544 | ea2384d3 | bellard | case -ENOTSUP:
|
545 | 15654a6d | Jes Sorensen | error_report("Image is already committed");
|
546 | ea2384d3 | bellard | break;
|
547 | ea2384d3 | bellard | default:
|
548 | 15654a6d | Jes Sorensen | error_report("Error while committing image");
|
549 | ea2384d3 | bellard | break;
|
550 | ea2384d3 | bellard | } |
551 | ea2384d3 | bellard | |
552 | ea2384d3 | bellard | bdrv_delete(bs); |
553 | c2abccec | MORITA Kazutaka | if (ret) {
|
554 | c2abccec | MORITA Kazutaka | return 1; |
555 | c2abccec | MORITA Kazutaka | } |
556 | ea2384d3 | bellard | return 0; |
557 | ea2384d3 | bellard | } |
558 | ea2384d3 | bellard | |
559 | f6a00aa1 | Dmitry Konishchev | /*
|
560 | f58c7b35 | ths | * Returns true iff the first sector pointed to by 'buf' contains at least
|
561 | f58c7b35 | ths | * a non-NUL byte.
|
562 | f58c7b35 | ths | *
|
563 | f58c7b35 | ths | * 'pnum' is set to the number of sectors (including and immediately following
|
564 | f58c7b35 | ths | * the first one) that are known to be in the same allocated/unallocated state.
|
565 | f58c7b35 | ths | */
|
566 | ea2384d3 | bellard | static int is_allocated_sectors(const uint8_t *buf, int n, int *pnum) |
567 | ea2384d3 | bellard | { |
568 | 1a6d39fd | Stefan Hajnoczi | bool is_zero;
|
569 | 1a6d39fd | Stefan Hajnoczi | int i;
|
570 | ea2384d3 | bellard | |
571 | ea2384d3 | bellard | if (n <= 0) { |
572 | ea2384d3 | bellard | *pnum = 0;
|
573 | ea2384d3 | bellard | return 0; |
574 | ea2384d3 | bellard | } |
575 | 1a6d39fd | Stefan Hajnoczi | is_zero = buffer_is_zero(buf, 512);
|
576 | ea2384d3 | bellard | for(i = 1; i < n; i++) { |
577 | ea2384d3 | bellard | buf += 512;
|
578 | 1a6d39fd | Stefan Hajnoczi | if (is_zero != buffer_is_zero(buf, 512)) { |
579 | ea2384d3 | bellard | break;
|
580 | 1a6d39fd | Stefan Hajnoczi | } |
581 | ea2384d3 | bellard | } |
582 | ea2384d3 | bellard | *pnum = i; |
583 | 1a6d39fd | Stefan Hajnoczi | return !is_zero;
|
584 | ea2384d3 | bellard | } |
585 | ea2384d3 | bellard | |
586 | 3e85c6fd | Kevin Wolf | /*
|
587 | a22f123c | Kevin Wolf | * Like is_allocated_sectors, but if the buffer starts with a used sector,
|
588 | a22f123c | Kevin Wolf | * up to 'min' consecutive sectors containing zeros are ignored. This avoids
|
589 | a22f123c | Kevin Wolf | * breaking up write requests for only small sparse areas.
|
590 | a22f123c | Kevin Wolf | */
|
591 | a22f123c | Kevin Wolf | static int is_allocated_sectors_min(const uint8_t *buf, int n, int *pnum, |
592 | a22f123c | Kevin Wolf | int min)
|
593 | a22f123c | Kevin Wolf | { |
594 | a22f123c | Kevin Wolf | int ret;
|
595 | a22f123c | Kevin Wolf | int num_checked, num_used;
|
596 | a22f123c | Kevin Wolf | |
597 | a22f123c | Kevin Wolf | if (n < min) {
|
598 | a22f123c | Kevin Wolf | min = n; |
599 | a22f123c | Kevin Wolf | } |
600 | a22f123c | Kevin Wolf | |
601 | a22f123c | Kevin Wolf | ret = is_allocated_sectors(buf, n, pnum); |
602 | a22f123c | Kevin Wolf | if (!ret) {
|
603 | a22f123c | Kevin Wolf | return ret;
|
604 | a22f123c | Kevin Wolf | } |
605 | a22f123c | Kevin Wolf | |
606 | a22f123c | Kevin Wolf | num_used = *pnum; |
607 | a22f123c | Kevin Wolf | buf += BDRV_SECTOR_SIZE * *pnum; |
608 | a22f123c | Kevin Wolf | n -= *pnum; |
609 | a22f123c | Kevin Wolf | num_checked = num_used; |
610 | a22f123c | Kevin Wolf | |
611 | a22f123c | Kevin Wolf | while (n > 0) { |
612 | a22f123c | Kevin Wolf | ret = is_allocated_sectors(buf, n, pnum); |
613 | a22f123c | Kevin Wolf | |
614 | a22f123c | Kevin Wolf | buf += BDRV_SECTOR_SIZE * *pnum; |
615 | a22f123c | Kevin Wolf | n -= *pnum; |
616 | a22f123c | Kevin Wolf | num_checked += *pnum; |
617 | a22f123c | Kevin Wolf | if (ret) {
|
618 | a22f123c | Kevin Wolf | num_used = num_checked; |
619 | a22f123c | Kevin Wolf | } else if (*pnum >= min) { |
620 | a22f123c | Kevin Wolf | break;
|
621 | a22f123c | Kevin Wolf | } |
622 | a22f123c | Kevin Wolf | } |
623 | a22f123c | Kevin Wolf | |
624 | a22f123c | Kevin Wolf | *pnum = num_used; |
625 | a22f123c | Kevin Wolf | return 1; |
626 | a22f123c | Kevin Wolf | } |
627 | a22f123c | Kevin Wolf | |
628 | a22f123c | Kevin Wolf | /*
|
629 | 3e85c6fd | Kevin Wolf | * Compares two buffers sector by sector. Returns 0 if the first sector of both
|
630 | 3e85c6fd | Kevin Wolf | * buffers matches, non-zero otherwise.
|
631 | 3e85c6fd | Kevin Wolf | *
|
632 | 3e85c6fd | Kevin Wolf | * pnum is set to the number of sectors (including and immediately following
|
633 | 3e85c6fd | Kevin Wolf | * the first one) that are known to have the same comparison result
|
634 | 3e85c6fd | Kevin Wolf | */
|
635 | 3e85c6fd | Kevin Wolf | static int compare_sectors(const uint8_t *buf1, const uint8_t *buf2, int n, |
636 | 3e85c6fd | Kevin Wolf | int *pnum)
|
637 | 3e85c6fd | Kevin Wolf | { |
638 | 3e85c6fd | Kevin Wolf | int res, i;
|
639 | 3e85c6fd | Kevin Wolf | |
640 | 3e85c6fd | Kevin Wolf | if (n <= 0) { |
641 | 3e85c6fd | Kevin Wolf | *pnum = 0;
|
642 | 3e85c6fd | Kevin Wolf | return 0; |
643 | 3e85c6fd | Kevin Wolf | } |
644 | 3e85c6fd | Kevin Wolf | |
645 | 3e85c6fd | Kevin Wolf | res = !!memcmp(buf1, buf2, 512);
|
646 | 3e85c6fd | Kevin Wolf | for(i = 1; i < n; i++) { |
647 | 3e85c6fd | Kevin Wolf | buf1 += 512;
|
648 | 3e85c6fd | Kevin Wolf | buf2 += 512;
|
649 | 3e85c6fd | Kevin Wolf | |
650 | 3e85c6fd | Kevin Wolf | if (!!memcmp(buf1, buf2, 512) != res) { |
651 | 3e85c6fd | Kevin Wolf | break;
|
652 | 3e85c6fd | Kevin Wolf | } |
653 | 3e85c6fd | Kevin Wolf | } |
654 | 3e85c6fd | Kevin Wolf | |
655 | 3e85c6fd | Kevin Wolf | *pnum = i; |
656 | 3e85c6fd | Kevin Wolf | return res;
|
657 | 3e85c6fd | Kevin Wolf | } |
658 | 3e85c6fd | Kevin Wolf | |
659 | 80ee15a6 | Kevin Wolf | #define IO_BUF_SIZE (2 * 1024 * 1024) |
660 | ea2384d3 | bellard | |
661 | ea2384d3 | bellard | static int img_convert(int argc, char **argv) |
662 | ea2384d3 | bellard | { |
663 | eec77d9e | Jes Sorensen | int c, ret = 0, n, n1, bs_n, bs_i, compress, cluster_size, cluster_sectors; |
664 | 661a0f71 | Federico Simoncelli | int progress = 0, flags; |
665 | 661a0f71 | Federico Simoncelli | const char *fmt, *out_fmt, *cache, *out_baseimg, *out_filename; |
666 | b50cbabc | MORITA Kazutaka | BlockDriver *drv, *proto_drv; |
667 | c2abccec | MORITA Kazutaka | BlockDriverState **bs = NULL, *out_bs = NULL; |
668 | 96b8f136 | ths | int64_t total_sectors, nb_sectors, sector_num, bs_offset; |
669 | 96b8f136 | ths | uint64_t bs_sectors; |
670 | c2abccec | MORITA Kazutaka | uint8_t * buf = NULL;
|
671 | ea2384d3 | bellard | const uint8_t *buf1;
|
672 | faea38e7 | bellard | BlockDriverInfo bdi; |
673 | b50cbabc | MORITA Kazutaka | QEMUOptionParameter *param = NULL, *create_options = NULL; |
674 | a18953fb | Kevin Wolf | QEMUOptionParameter *out_baseimg_param; |
675 | efa84d43 | Kevin Wolf | char *options = NULL; |
676 | 51ef6727 | edison | const char *snapshot_name = NULL; |
677 | 6b837bc4 | Jes Sorensen | float local_progress;
|
678 | a22f123c | Kevin Wolf | int min_sparse = 8; /* Need at least 4k of zeros for sparse detection */ |
679 | ea2384d3 | bellard | |
680 | ea2384d3 | bellard | fmt = NULL;
|
681 | ea2384d3 | bellard | out_fmt = "raw";
|
682 | 661a0f71 | Federico Simoncelli | cache = "unsafe";
|
683 | f58c7b35 | ths | out_baseimg = NULL;
|
684 | eec77d9e | Jes Sorensen | compress = 0;
|
685 | ea2384d3 | bellard | for(;;) {
|
686 | a22f123c | Kevin Wolf | c = getopt(argc, argv, "f:O:B:s:hce6o:pS:t:");
|
687 | b8fb60da | Jes Sorensen | if (c == -1) { |
688 | ea2384d3 | bellard | break;
|
689 | b8fb60da | Jes Sorensen | } |
690 | ea2384d3 | bellard | switch(c) {
|
691 | ef87394c | Jes Sorensen | case '?': |
692 | ea2384d3 | bellard | case 'h': |
693 | ea2384d3 | bellard | help(); |
694 | ea2384d3 | bellard | break;
|
695 | ea2384d3 | bellard | case 'f': |
696 | ea2384d3 | bellard | fmt = optarg; |
697 | ea2384d3 | bellard | break;
|
698 | ea2384d3 | bellard | case 'O': |
699 | ea2384d3 | bellard | out_fmt = optarg; |
700 | ea2384d3 | bellard | break;
|
701 | f58c7b35 | ths | case 'B': |
702 | f58c7b35 | ths | out_baseimg = optarg; |
703 | f58c7b35 | ths | break;
|
704 | ea2384d3 | bellard | case 'c': |
705 | eec77d9e | Jes Sorensen | compress = 1;
|
706 | ea2384d3 | bellard | break;
|
707 | ea2384d3 | bellard | case 'e': |
708 | 9d42e15d | Markus Armbruster | error_report("option -e is deprecated, please use \'-o "
|
709 | eec77d9e | Jes Sorensen | "encryption\' instead!");
|
710 | eec77d9e | Jes Sorensen | return 1; |
711 | ec36ba14 | ths | case '6': |
712 | 9d42e15d | Markus Armbruster | error_report("option -6 is deprecated, please use \'-o "
|
713 | eec77d9e | Jes Sorensen | "compat6\' instead!");
|
714 | eec77d9e | Jes Sorensen | return 1; |
715 | efa84d43 | Kevin Wolf | case 'o': |
716 | efa84d43 | Kevin Wolf | options = optarg; |
717 | efa84d43 | Kevin Wolf | break;
|
718 | 51ef6727 | edison | case 's': |
719 | 51ef6727 | edison | snapshot_name = optarg; |
720 | 51ef6727 | edison | break;
|
721 | a22f123c | Kevin Wolf | case 'S': |
722 | a22f123c | Kevin Wolf | { |
723 | a22f123c | Kevin Wolf | int64_t sval; |
724 | e36b3695 | Markus Armbruster | char *end;
|
725 | e36b3695 | Markus Armbruster | sval = strtosz_suffix(optarg, &end, STRTOSZ_DEFSUFFIX_B); |
726 | e36b3695 | Markus Armbruster | if (sval < 0 || *end) { |
727 | a22f123c | Kevin Wolf | error_report("Invalid minimum zero buffer size for sparse output specified");
|
728 | a22f123c | Kevin Wolf | return 1; |
729 | a22f123c | Kevin Wolf | } |
730 | a22f123c | Kevin Wolf | |
731 | a22f123c | Kevin Wolf | min_sparse = sval / BDRV_SECTOR_SIZE; |
732 | a22f123c | Kevin Wolf | break;
|
733 | a22f123c | Kevin Wolf | } |
734 | 6b837bc4 | Jes Sorensen | case 'p': |
735 | 6b837bc4 | Jes Sorensen | progress = 1;
|
736 | 6b837bc4 | Jes Sorensen | break;
|
737 | 661a0f71 | Federico Simoncelli | case 't': |
738 | 661a0f71 | Federico Simoncelli | cache = optarg; |
739 | 661a0f71 | Federico Simoncelli | break;
|
740 | ea2384d3 | bellard | } |
741 | ea2384d3 | bellard | } |
742 | 3b46e624 | ths | |
743 | 926c2d23 | balrog | bs_n = argc - optind - 1;
|
744 | b8fb60da | Jes Sorensen | if (bs_n < 1) { |
745 | b8fb60da | Jes Sorensen | help(); |
746 | b8fb60da | Jes Sorensen | } |
747 | 926c2d23 | balrog | |
748 | 926c2d23 | balrog | out_filename = argv[argc - 1];
|
749 | f58c7b35 | ths | |
750 | fa170c14 | Charles Arnold | /* Initialize before goto out */
|
751 | fa170c14 | Charles Arnold | qemu_progress_init(progress, 2.0); |
752 | fa170c14 | Charles Arnold | |
753 | c8057f95 | Peter Maydell | if (options && is_help_option(options)) {
|
754 | 4ac8aacd | Jes Sorensen | ret = print_block_option_help(out_filename, out_fmt); |
755 | 4ac8aacd | Jes Sorensen | goto out;
|
756 | 4ac8aacd | Jes Sorensen | } |
757 | 4ac8aacd | Jes Sorensen | |
758 | c2abccec | MORITA Kazutaka | if (bs_n > 1 && out_baseimg) { |
759 | 15654a6d | Jes Sorensen | error_report("-B makes no sense when concatenating multiple input "
|
760 | 15654a6d | Jes Sorensen | "images");
|
761 | 31ca34b8 | Jes Sorensen | ret = -1;
|
762 | 31ca34b8 | Jes Sorensen | goto out;
|
763 | c2abccec | MORITA Kazutaka | } |
764 | f8111c24 | Dong Xu Wang | |
765 | 6b837bc4 | Jes Sorensen | qemu_progress_print(0, 100); |
766 | 6b837bc4 | Jes Sorensen | |
767 | 7267c094 | Anthony Liguori | bs = g_malloc0(bs_n * sizeof(BlockDriverState *));
|
768 | 926c2d23 | balrog | |
769 | 926c2d23 | balrog | total_sectors = 0;
|
770 | 926c2d23 | balrog | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
771 | f0536bb8 | Daniel P. Berrange | bs[bs_i] = bdrv_new_open(argv[optind + bs_i], fmt, BDRV_O_FLAGS, true);
|
772 | c2abccec | MORITA Kazutaka | if (!bs[bs_i]) {
|
773 | 15654a6d | Jes Sorensen | error_report("Could not open '%s'", argv[optind + bs_i]);
|
774 | c2abccec | MORITA Kazutaka | ret = -1;
|
775 | c2abccec | MORITA Kazutaka | goto out;
|
776 | c2abccec | MORITA Kazutaka | } |
777 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
778 | 926c2d23 | balrog | total_sectors += bs_sectors; |
779 | 926c2d23 | balrog | } |
780 | ea2384d3 | bellard | |
781 | 51ef6727 | edison | if (snapshot_name != NULL) { |
782 | 51ef6727 | edison | if (bs_n > 1) { |
783 | 6daf194d | Markus Armbruster | error_report("No support for concatenating multiple snapshot");
|
784 | 51ef6727 | edison | ret = -1;
|
785 | 51ef6727 | edison | goto out;
|
786 | 51ef6727 | edison | } |
787 | 51ef6727 | edison | if (bdrv_snapshot_load_tmp(bs[0], snapshot_name) < 0) { |
788 | 6daf194d | Markus Armbruster | error_report("Failed to load snapshot");
|
789 | 51ef6727 | edison | ret = -1;
|
790 | 51ef6727 | edison | goto out;
|
791 | 51ef6727 | edison | } |
792 | 51ef6727 | edison | } |
793 | 51ef6727 | edison | |
794 | efa84d43 | Kevin Wolf | /* Find driver and parse its options */
|
795 | ea2384d3 | bellard | drv = bdrv_find_format(out_fmt); |
796 | c2abccec | MORITA Kazutaka | if (!drv) {
|
797 | 15654a6d | Jes Sorensen | error_report("Unknown file format '%s'", out_fmt);
|
798 | c2abccec | MORITA Kazutaka | ret = -1;
|
799 | c2abccec | MORITA Kazutaka | goto out;
|
800 | c2abccec | MORITA Kazutaka | } |
801 | efa84d43 | Kevin Wolf | |
802 | b50cbabc | MORITA Kazutaka | proto_drv = bdrv_find_protocol(out_filename); |
803 | c2abccec | MORITA Kazutaka | if (!proto_drv) {
|
804 | 15654a6d | Jes Sorensen | error_report("Unknown protocol '%s'", out_filename);
|
805 | c2abccec | MORITA Kazutaka | ret = -1;
|
806 | c2abccec | MORITA Kazutaka | goto out;
|
807 | c2abccec | MORITA Kazutaka | } |
808 | b50cbabc | MORITA Kazutaka | |
809 | b50cbabc | MORITA Kazutaka | create_options = append_option_parameters(create_options, |
810 | b50cbabc | MORITA Kazutaka | drv->create_options); |
811 | b50cbabc | MORITA Kazutaka | create_options = append_option_parameters(create_options, |
812 | b50cbabc | MORITA Kazutaka | proto_drv->create_options); |
813 | db08adf5 | Kevin Wolf | |
814 | efa84d43 | Kevin Wolf | if (options) {
|
815 | b50cbabc | MORITA Kazutaka | param = parse_option_parameters(options, create_options, param); |
816 | efa84d43 | Kevin Wolf | if (param == NULL) { |
817 | 15654a6d | Jes Sorensen | error_report("Invalid options for file format '%s'.", out_fmt);
|
818 | c2abccec | MORITA Kazutaka | ret = -1;
|
819 | c2abccec | MORITA Kazutaka | goto out;
|
820 | efa84d43 | Kevin Wolf | } |
821 | efa84d43 | Kevin Wolf | } else {
|
822 | b50cbabc | MORITA Kazutaka | param = parse_option_parameters("", create_options, param);
|
823 | efa84d43 | Kevin Wolf | } |
824 | efa84d43 | Kevin Wolf | |
825 | efa84d43 | Kevin Wolf | set_option_parameter_int(param, BLOCK_OPT_SIZE, total_sectors * 512);
|
826 | eec77d9e | Jes Sorensen | ret = add_old_style_options(out_fmt, param, out_baseimg, NULL);
|
827 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
828 | c2abccec | MORITA Kazutaka | goto out;
|
829 | c2abccec | MORITA Kazutaka | } |
830 | efa84d43 | Kevin Wolf | |
831 | a18953fb | Kevin Wolf | /* Get backing file name if -o backing_file was used */
|
832 | a18953fb | Kevin Wolf | out_baseimg_param = get_option_parameter(param, BLOCK_OPT_BACKING_FILE); |
833 | a18953fb | Kevin Wolf | if (out_baseimg_param) {
|
834 | a18953fb | Kevin Wolf | out_baseimg = out_baseimg_param->value.s; |
835 | a18953fb | Kevin Wolf | } |
836 | a18953fb | Kevin Wolf | |
837 | efa84d43 | Kevin Wolf | /* Check if compression is supported */
|
838 | eec77d9e | Jes Sorensen | if (compress) {
|
839 | efa84d43 | Kevin Wolf | QEMUOptionParameter *encryption = |
840 | efa84d43 | Kevin Wolf | get_option_parameter(param, BLOCK_OPT_ENCRYPT); |
841 | 41521fa4 | Kevin Wolf | QEMUOptionParameter *preallocation = |
842 | 41521fa4 | Kevin Wolf | get_option_parameter(param, BLOCK_OPT_PREALLOC); |
843 | efa84d43 | Kevin Wolf | |
844 | efa84d43 | Kevin Wolf | if (!drv->bdrv_write_compressed) {
|
845 | 15654a6d | Jes Sorensen | error_report("Compression not supported for this file format");
|
846 | c2abccec | MORITA Kazutaka | ret = -1;
|
847 | c2abccec | MORITA Kazutaka | goto out;
|
848 | efa84d43 | Kevin Wolf | } |
849 | efa84d43 | Kevin Wolf | |
850 | efa84d43 | Kevin Wolf | if (encryption && encryption->value.n) {
|
851 | 15654a6d | Jes Sorensen | error_report("Compression and encryption not supported at "
|
852 | 15654a6d | Jes Sorensen | "the same time");
|
853 | c2abccec | MORITA Kazutaka | ret = -1;
|
854 | c2abccec | MORITA Kazutaka | goto out;
|
855 | efa84d43 | Kevin Wolf | } |
856 | 41521fa4 | Kevin Wolf | |
857 | 41521fa4 | Kevin Wolf | if (preallocation && preallocation->value.s
|
858 | 41521fa4 | Kevin Wolf | && strcmp(preallocation->value.s, "off"))
|
859 | 41521fa4 | Kevin Wolf | { |
860 | 41521fa4 | Kevin Wolf | error_report("Compression and preallocation not supported at "
|
861 | 41521fa4 | Kevin Wolf | "the same time");
|
862 | 41521fa4 | Kevin Wolf | ret = -1;
|
863 | 41521fa4 | Kevin Wolf | goto out;
|
864 | 41521fa4 | Kevin Wolf | } |
865 | efa84d43 | Kevin Wolf | } |
866 | efa84d43 | Kevin Wolf | |
867 | efa84d43 | Kevin Wolf | /* Create the new image */
|
868 | efa84d43 | Kevin Wolf | ret = bdrv_create(drv, out_filename, param); |
869 | ea2384d3 | bellard | if (ret < 0) { |
870 | ea2384d3 | bellard | if (ret == -ENOTSUP) {
|
871 | 15654a6d | Jes Sorensen | error_report("Formatting not supported for file format '%s'",
|
872 | 15654a6d | Jes Sorensen | out_fmt); |
873 | 6e9ea0c0 | aurel32 | } else if (ret == -EFBIG) { |
874 | 15654a6d | Jes Sorensen | error_report("The image size is too large for file format '%s'",
|
875 | 15654a6d | Jes Sorensen | out_fmt); |
876 | ea2384d3 | bellard | } else {
|
877 | 15654a6d | Jes Sorensen | error_report("%s: error while converting %s: %s",
|
878 | 15654a6d | Jes Sorensen | out_filename, out_fmt, strerror(-ret)); |
879 | ea2384d3 | bellard | } |
880 | c2abccec | MORITA Kazutaka | goto out;
|
881 | ea2384d3 | bellard | } |
882 | 3b46e624 | ths | |
883 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR; |
884 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
885 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
886 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
887 | 661a0f71 | Federico Simoncelli | return -1; |
888 | 661a0f71 | Federico Simoncelli | } |
889 | 661a0f71 | Federico Simoncelli | |
890 | f0536bb8 | Daniel P. Berrange | out_bs = bdrv_new_open(out_filename, out_fmt, flags, true);
|
891 | c2abccec | MORITA Kazutaka | if (!out_bs) {
|
892 | c2abccec | MORITA Kazutaka | ret = -1;
|
893 | c2abccec | MORITA Kazutaka | goto out;
|
894 | c2abccec | MORITA Kazutaka | } |
895 | ea2384d3 | bellard | |
896 | 926c2d23 | balrog | bs_i = 0;
|
897 | 926c2d23 | balrog | bs_offset = 0;
|
898 | 926c2d23 | balrog | bdrv_get_geometry(bs[0], &bs_sectors);
|
899 | bb1c0597 | Kevin Wolf | buf = qemu_blockalign(out_bs, IO_BUF_SIZE); |
900 | 926c2d23 | balrog | |
901 | eec77d9e | Jes Sorensen | if (compress) {
|
902 | c2abccec | MORITA Kazutaka | ret = bdrv_get_info(out_bs, &bdi); |
903 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
904 | 15654a6d | Jes Sorensen | error_report("could not get block driver info");
|
905 | c2abccec | MORITA Kazutaka | goto out;
|
906 | c2abccec | MORITA Kazutaka | } |
907 | faea38e7 | bellard | cluster_size = bdi.cluster_size; |
908 | c2abccec | MORITA Kazutaka | if (cluster_size <= 0 || cluster_size > IO_BUF_SIZE) { |
909 | 15654a6d | Jes Sorensen | error_report("invalid cluster size");
|
910 | c2abccec | MORITA Kazutaka | ret = -1;
|
911 | c2abccec | MORITA Kazutaka | goto out;
|
912 | c2abccec | MORITA Kazutaka | } |
913 | ea2384d3 | bellard | cluster_sectors = cluster_size >> 9;
|
914 | ea2384d3 | bellard | sector_num = 0;
|
915 | 6b837bc4 | Jes Sorensen | |
916 | 6b837bc4 | Jes Sorensen | nb_sectors = total_sectors; |
917 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
918 | 4ee96418 | Jes Sorensen | (nb_sectors / MIN(nb_sectors, cluster_sectors)); |
919 | 6b837bc4 | Jes Sorensen | |
920 | ea2384d3 | bellard | for(;;) {
|
921 | 926c2d23 | balrog | int64_t bs_num; |
922 | 926c2d23 | balrog | int remainder;
|
923 | 926c2d23 | balrog | uint8_t *buf2; |
924 | 926c2d23 | balrog | |
925 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
926 | ea2384d3 | bellard | if (nb_sectors <= 0) |
927 | ea2384d3 | bellard | break;
|
928 | ea2384d3 | bellard | if (nb_sectors >= cluster_sectors)
|
929 | ea2384d3 | bellard | n = cluster_sectors; |
930 | ea2384d3 | bellard | else
|
931 | ea2384d3 | bellard | n = nb_sectors; |
932 | 926c2d23 | balrog | |
933 | 926c2d23 | balrog | bs_num = sector_num - bs_offset; |
934 | 926c2d23 | balrog | assert (bs_num >= 0);
|
935 | 926c2d23 | balrog | remainder = n; |
936 | 926c2d23 | balrog | buf2 = buf; |
937 | 926c2d23 | balrog | while (remainder > 0) { |
938 | 926c2d23 | balrog | int nlow;
|
939 | 926c2d23 | balrog | while (bs_num == bs_sectors) {
|
940 | 926c2d23 | balrog | bs_i++; |
941 | 926c2d23 | balrog | assert (bs_i < bs_n); |
942 | 926c2d23 | balrog | bs_offset += bs_sectors; |
943 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
944 | 926c2d23 | balrog | bs_num = 0;
|
945 | 0bfcd599 | Blue Swirl | /* printf("changing part: sector_num=%" PRId64 ", "
|
946 | 0bfcd599 | Blue Swirl | "bs_i=%d, bs_offset=%" PRId64 ", bs_sectors=%" PRId64
|
947 | 0bfcd599 | Blue Swirl | "\n", sector_num, bs_i, bs_offset, bs_sectors); */
|
948 | 926c2d23 | balrog | } |
949 | 926c2d23 | balrog | assert (bs_num < bs_sectors); |
950 | 926c2d23 | balrog | |
951 | 926c2d23 | balrog | nlow = (remainder > bs_sectors - bs_num) ? bs_sectors - bs_num : remainder; |
952 | 926c2d23 | balrog | |
953 | c2abccec | MORITA Kazutaka | ret = bdrv_read(bs[bs_i], bs_num, buf2, nlow); |
954 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
955 | 3fba9d81 | Stefan Hajnoczi | error_report("error while reading sector %" PRId64 ": %s", |
956 | 3fba9d81 | Stefan Hajnoczi | bs_num, strerror(-ret)); |
957 | c2abccec | MORITA Kazutaka | goto out;
|
958 | c2abccec | MORITA Kazutaka | } |
959 | 926c2d23 | balrog | |
960 | 926c2d23 | balrog | buf2 += nlow * 512;
|
961 | 926c2d23 | balrog | bs_num += nlow; |
962 | 926c2d23 | balrog | |
963 | 926c2d23 | balrog | remainder -= nlow; |
964 | 926c2d23 | balrog | } |
965 | 926c2d23 | balrog | assert (remainder == 0);
|
966 | 926c2d23 | balrog | |
967 | b8fb60da | Jes Sorensen | if (n < cluster_sectors) {
|
968 | ea2384d3 | bellard | memset(buf + n * 512, 0, cluster_size - n * 512); |
969 | b8fb60da | Jes Sorensen | } |
970 | 1a6d39fd | Stefan Hajnoczi | if (!buffer_is_zero(buf, cluster_size)) {
|
971 | c2abccec | MORITA Kazutaka | ret = bdrv_write_compressed(out_bs, sector_num, buf, |
972 | c2abccec | MORITA Kazutaka | cluster_sectors); |
973 | c2abccec | MORITA Kazutaka | if (ret != 0) { |
974 | 3fba9d81 | Stefan Hajnoczi | error_report("error while compressing sector %" PRId64
|
975 | 3fba9d81 | Stefan Hajnoczi | ": %s", sector_num, strerror(-ret));
|
976 | c2abccec | MORITA Kazutaka | goto out;
|
977 | c2abccec | MORITA Kazutaka | } |
978 | ea2384d3 | bellard | } |
979 | ea2384d3 | bellard | sector_num += n; |
980 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
981 | ea2384d3 | bellard | } |
982 | faea38e7 | bellard | /* signal EOF to align */
|
983 | faea38e7 | bellard | bdrv_write_compressed(out_bs, 0, NULL, 0); |
984 | ea2384d3 | bellard | } else {
|
985 | f2feebbd | Kevin Wolf | int has_zero_init = bdrv_has_zero_init(out_bs);
|
986 | f2feebbd | Kevin Wolf | |
987 | f58c7b35 | ths | sector_num = 0; // total number of sectors converted so far |
988 | 6b837bc4 | Jes Sorensen | nb_sectors = total_sectors - sector_num; |
989 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
990 | 4ee96418 | Jes Sorensen | (nb_sectors / MIN(nb_sectors, IO_BUF_SIZE / 512));
|
991 | 6b837bc4 | Jes Sorensen | |
992 | ea2384d3 | bellard | for(;;) {
|
993 | ea2384d3 | bellard | nb_sectors = total_sectors - sector_num; |
994 | b8fb60da | Jes Sorensen | if (nb_sectors <= 0) { |
995 | ea2384d3 | bellard | break;
|
996 | b8fb60da | Jes Sorensen | } |
997 | b8fb60da | Jes Sorensen | if (nb_sectors >= (IO_BUF_SIZE / 512)) { |
998 | ea2384d3 | bellard | n = (IO_BUF_SIZE / 512);
|
999 | b8fb60da | Jes Sorensen | } else {
|
1000 | ea2384d3 | bellard | n = nb_sectors; |
1001 | b8fb60da | Jes Sorensen | } |
1002 | 926c2d23 | balrog | |
1003 | 926c2d23 | balrog | while (sector_num - bs_offset >= bs_sectors) {
|
1004 | 926c2d23 | balrog | bs_i ++; |
1005 | 926c2d23 | balrog | assert (bs_i < bs_n); |
1006 | 926c2d23 | balrog | bs_offset += bs_sectors; |
1007 | 926c2d23 | balrog | bdrv_get_geometry(bs[bs_i], &bs_sectors); |
1008 | 0bfcd599 | Blue Swirl | /* printf("changing part: sector_num=%" PRId64 ", bs_i=%d, "
|
1009 | 0bfcd599 | Blue Swirl | "bs_offset=%" PRId64 ", bs_sectors=%" PRId64 "\n",
|
1010 | 926c2d23 | balrog | sector_num, bs_i, bs_offset, bs_sectors); */
|
1011 | 926c2d23 | balrog | } |
1012 | 926c2d23 | balrog | |
1013 | b8fb60da | Jes Sorensen | if (n > bs_offset + bs_sectors - sector_num) {
|
1014 | 926c2d23 | balrog | n = bs_offset + bs_sectors - sector_num; |
1015 | b8fb60da | Jes Sorensen | } |
1016 | 926c2d23 | balrog | |
1017 | f2feebbd | Kevin Wolf | if (has_zero_init) {
|
1018 | d032044f | Akkarit Sangpetch | /* If the output image is being created as a copy on write image,
|
1019 | d032044f | Akkarit Sangpetch | assume that sectors which are unallocated in the input image
|
1020 | d032044f | Akkarit Sangpetch | are present in both the output's and input's base images (no
|
1021 | d032044f | Akkarit Sangpetch | need to copy them). */
|
1022 | d032044f | Akkarit Sangpetch | if (out_baseimg) {
|
1023 | d032044f | Akkarit Sangpetch | if (!bdrv_is_allocated(bs[bs_i], sector_num - bs_offset,
|
1024 | d032044f | Akkarit Sangpetch | n, &n1)) { |
1025 | d032044f | Akkarit Sangpetch | sector_num += n1; |
1026 | d032044f | Akkarit Sangpetch | continue;
|
1027 | d032044f | Akkarit Sangpetch | } |
1028 | d032044f | Akkarit Sangpetch | /* The next 'n1' sectors are allocated in the input image. Copy
|
1029 | d032044f | Akkarit Sangpetch | only those as they may be followed by unallocated sectors. */
|
1030 | d032044f | Akkarit Sangpetch | n = n1; |
1031 | 93c65b47 | aliguori | } |
1032 | 93c65b47 | aliguori | } else {
|
1033 | 93c65b47 | aliguori | n1 = n; |
1034 | f58c7b35 | ths | } |
1035 | f58c7b35 | ths | |
1036 | c2abccec | MORITA Kazutaka | ret = bdrv_read(bs[bs_i], sector_num - bs_offset, buf, n); |
1037 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
1038 | 3fba9d81 | Stefan Hajnoczi | error_report("error while reading sector %" PRId64 ": %s", |
1039 | 3fba9d81 | Stefan Hajnoczi | sector_num - bs_offset, strerror(-ret)); |
1040 | c2abccec | MORITA Kazutaka | goto out;
|
1041 | c2abccec | MORITA Kazutaka | } |
1042 | ea2384d3 | bellard | /* NOTE: at the same time we convert, we do not write zero
|
1043 | ea2384d3 | bellard | sectors to have a chance to compress the image. Ideally, we
|
1044 | ea2384d3 | bellard | should add a specific call to have the info to go faster */
|
1045 | ea2384d3 | bellard | buf1 = buf; |
1046 | ea2384d3 | bellard | while (n > 0) { |
1047 | f58c7b35 | ths | /* If the output image is being created as a copy on write image,
|
1048 | f58c7b35 | ths | copy all sectors even the ones containing only NUL bytes,
|
1049 | 93c65b47 | aliguori | because they may differ from the sectors in the base image.
|
1050 | 93c65b47 | aliguori | |
1051 | 93c65b47 | aliguori | If the output is to a host device, we also write out
|
1052 | 93c65b47 | aliguori | sectors that are entirely 0, since whatever data was
|
1053 | 93c65b47 | aliguori | already there is garbage, not 0s. */
|
1054 | f2feebbd | Kevin Wolf | if (!has_zero_init || out_baseimg ||
|
1055 | a22f123c | Kevin Wolf | is_allocated_sectors_min(buf1, n, &n1, min_sparse)) { |
1056 | c2abccec | MORITA Kazutaka | ret = bdrv_write(out_bs, sector_num, buf1, n1); |
1057 | c2abccec | MORITA Kazutaka | if (ret < 0) { |
1058 | 3fba9d81 | Stefan Hajnoczi | error_report("error while writing sector %" PRId64
|
1059 | 3fba9d81 | Stefan Hajnoczi | ": %s", sector_num, strerror(-ret));
|
1060 | c2abccec | MORITA Kazutaka | goto out;
|
1061 | c2abccec | MORITA Kazutaka | } |
1062 | ea2384d3 | bellard | } |
1063 | ea2384d3 | bellard | sector_num += n1; |
1064 | ea2384d3 | bellard | n -= n1; |
1065 | ea2384d3 | bellard | buf1 += n1 * 512;
|
1066 | ea2384d3 | bellard | } |
1067 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
1068 | ea2384d3 | bellard | } |
1069 | ea2384d3 | bellard | } |
1070 | c2abccec | MORITA Kazutaka | out:
|
1071 | 6b837bc4 | Jes Sorensen | qemu_progress_end(); |
1072 | c2abccec | MORITA Kazutaka | free_option_parameters(create_options); |
1073 | c2abccec | MORITA Kazutaka | free_option_parameters(param); |
1074 | bb1c0597 | Kevin Wolf | qemu_vfree(buf); |
1075 | c2abccec | MORITA Kazutaka | if (out_bs) {
|
1076 | c2abccec | MORITA Kazutaka | bdrv_delete(out_bs); |
1077 | c2abccec | MORITA Kazutaka | } |
1078 | 31ca34b8 | Jes Sorensen | if (bs) {
|
1079 | 31ca34b8 | Jes Sorensen | for (bs_i = 0; bs_i < bs_n; bs_i++) { |
1080 | 31ca34b8 | Jes Sorensen | if (bs[bs_i]) {
|
1081 | 31ca34b8 | Jes Sorensen | bdrv_delete(bs[bs_i]); |
1082 | 31ca34b8 | Jes Sorensen | } |
1083 | c2abccec | MORITA Kazutaka | } |
1084 | 7267c094 | Anthony Liguori | g_free(bs); |
1085 | c2abccec | MORITA Kazutaka | } |
1086 | c2abccec | MORITA Kazutaka | if (ret) {
|
1087 | c2abccec | MORITA Kazutaka | return 1; |
1088 | c2abccec | MORITA Kazutaka | } |
1089 | ea2384d3 | bellard | return 0; |
1090 | ea2384d3 | bellard | } |
1091 | ea2384d3 | bellard | |
1092 | 57d1a2b6 | bellard | |
1093 | faea38e7 | bellard | static void dump_snapshots(BlockDriverState *bs) |
1094 | faea38e7 | bellard | { |
1095 | faea38e7 | bellard | QEMUSnapshotInfo *sn_tab, *sn; |
1096 | faea38e7 | bellard | int nb_sns, i;
|
1097 | faea38e7 | bellard | char buf[256]; |
1098 | faea38e7 | bellard | |
1099 | faea38e7 | bellard | nb_sns = bdrv_snapshot_list(bs, &sn_tab); |
1100 | faea38e7 | bellard | if (nb_sns <= 0) |
1101 | faea38e7 | bellard | return;
|
1102 | faea38e7 | bellard | printf("Snapshot list:\n");
|
1103 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), NULL)); |
1104 | faea38e7 | bellard | for(i = 0; i < nb_sns; i++) { |
1105 | faea38e7 | bellard | sn = &sn_tab[i]; |
1106 | faea38e7 | bellard | printf("%s\n", bdrv_snapshot_dump(buf, sizeof(buf), sn)); |
1107 | faea38e7 | bellard | } |
1108 | 7267c094 | Anthony Liguori | g_free(sn_tab); |
1109 | faea38e7 | bellard | } |
1110 | faea38e7 | bellard | |
1111 | c054b3fd | Benoît Canet | static void collect_snapshots(BlockDriverState *bs , ImageInfo *info) |
1112 | c054b3fd | Benoît Canet | { |
1113 | c054b3fd | Benoît Canet | int i, sn_count;
|
1114 | c054b3fd | Benoît Canet | QEMUSnapshotInfo *sn_tab = NULL;
|
1115 | c054b3fd | Benoît Canet | SnapshotInfoList *info_list, *cur_item = NULL;
|
1116 | c054b3fd | Benoît Canet | sn_count = bdrv_snapshot_list(bs, &sn_tab); |
1117 | c054b3fd | Benoît Canet | |
1118 | c054b3fd | Benoît Canet | for (i = 0; i < sn_count; i++) { |
1119 | c054b3fd | Benoît Canet | info->has_snapshots = true;
|
1120 | c054b3fd | Benoît Canet | info_list = g_new0(SnapshotInfoList, 1);
|
1121 | c054b3fd | Benoît Canet | |
1122 | c054b3fd | Benoît Canet | info_list->value = g_new0(SnapshotInfo, 1);
|
1123 | c054b3fd | Benoît Canet | info_list->value->id = g_strdup(sn_tab[i].id_str); |
1124 | c054b3fd | Benoît Canet | info_list->value->name = g_strdup(sn_tab[i].name); |
1125 | c054b3fd | Benoît Canet | info_list->value->vm_state_size = sn_tab[i].vm_state_size; |
1126 | c054b3fd | Benoît Canet | info_list->value->date_sec = sn_tab[i].date_sec; |
1127 | c054b3fd | Benoît Canet | info_list->value->date_nsec = sn_tab[i].date_nsec; |
1128 | c054b3fd | Benoît Canet | info_list->value->vm_clock_sec = sn_tab[i].vm_clock_nsec / 1000000000;
|
1129 | c054b3fd | Benoît Canet | info_list->value->vm_clock_nsec = sn_tab[i].vm_clock_nsec % 1000000000;
|
1130 | c054b3fd | Benoît Canet | |
1131 | c054b3fd | Benoît Canet | /* XXX: waiting for the qapi to support qemu-queue.h types */
|
1132 | c054b3fd | Benoît Canet | if (!cur_item) {
|
1133 | c054b3fd | Benoît Canet | info->snapshots = cur_item = info_list; |
1134 | c054b3fd | Benoît Canet | } else {
|
1135 | c054b3fd | Benoît Canet | cur_item->next = info_list; |
1136 | c054b3fd | Benoît Canet | cur_item = info_list; |
1137 | c054b3fd | Benoît Canet | } |
1138 | c054b3fd | Benoît Canet | |
1139 | c054b3fd | Benoît Canet | } |
1140 | c054b3fd | Benoît Canet | |
1141 | c054b3fd | Benoît Canet | g_free(sn_tab); |
1142 | c054b3fd | Benoît Canet | } |
1143 | c054b3fd | Benoît Canet | |
1144 | c054b3fd | Benoît Canet | static void dump_json_image_info(ImageInfo *info) |
1145 | c054b3fd | Benoît Canet | { |
1146 | c054b3fd | Benoît Canet | Error *errp = NULL;
|
1147 | c054b3fd | Benoît Canet | QString *str; |
1148 | c054b3fd | Benoît Canet | QmpOutputVisitor *ov = qmp_output_visitor_new(); |
1149 | c054b3fd | Benoît Canet | QObject *obj; |
1150 | c054b3fd | Benoît Canet | visit_type_ImageInfo(qmp_output_get_visitor(ov), |
1151 | c054b3fd | Benoît Canet | &info, NULL, &errp);
|
1152 | c054b3fd | Benoît Canet | obj = qmp_output_get_qobject(ov); |
1153 | c054b3fd | Benoît Canet | str = qobject_to_json_pretty(obj); |
1154 | c054b3fd | Benoît Canet | assert(str != NULL);
|
1155 | c054b3fd | Benoît Canet | printf("%s\n", qstring_get_str(str));
|
1156 | c054b3fd | Benoît Canet | qobject_decref(obj); |
1157 | c054b3fd | Benoît Canet | qmp_output_visitor_cleanup(ov); |
1158 | c054b3fd | Benoît Canet | QDECREF(str); |
1159 | c054b3fd | Benoît Canet | } |
1160 | c054b3fd | Benoît Canet | |
1161 | c054b3fd | Benoît Canet | static void collect_image_info(BlockDriverState *bs, |
1162 | c054b3fd | Benoît Canet | ImageInfo *info, |
1163 | c054b3fd | Benoît Canet | const char *filename, |
1164 | c054b3fd | Benoît Canet | const char *fmt) |
1165 | ea2384d3 | bellard | { |
1166 | 96b8f136 | ths | uint64_t total_sectors; |
1167 | 93b6b2a3 | bellard | char backing_filename[1024]; |
1168 | 93b6b2a3 | bellard | char backing_filename2[1024]; |
1169 | faea38e7 | bellard | BlockDriverInfo bdi; |
1170 | ea2384d3 | bellard | |
1171 | c054b3fd | Benoît Canet | bdrv_get_geometry(bs, &total_sectors); |
1172 | c054b3fd | Benoît Canet | |
1173 | c054b3fd | Benoît Canet | info->filename = g_strdup(filename); |
1174 | c054b3fd | Benoît Canet | info->format = g_strdup(bdrv_get_format_name(bs)); |
1175 | c054b3fd | Benoît Canet | info->virtual_size = total_sectors * 512;
|
1176 | c054b3fd | Benoît Canet | info->actual_size = bdrv_get_allocated_file_size(bs); |
1177 | c054b3fd | Benoît Canet | info->has_actual_size = info->actual_size >= 0;
|
1178 | c054b3fd | Benoît Canet | if (bdrv_is_encrypted(bs)) {
|
1179 | c054b3fd | Benoît Canet | info->encrypted = true;
|
1180 | c054b3fd | Benoît Canet | info->has_encrypted = true;
|
1181 | c054b3fd | Benoît Canet | } |
1182 | c054b3fd | Benoît Canet | if (bdrv_get_info(bs, &bdi) >= 0) { |
1183 | c054b3fd | Benoît Canet | if (bdi.cluster_size != 0) { |
1184 | c054b3fd | Benoît Canet | info->cluster_size = bdi.cluster_size; |
1185 | c054b3fd | Benoît Canet | info->has_cluster_size = true;
|
1186 | c054b3fd | Benoît Canet | } |
1187 | c054b3fd | Benoît Canet | info->dirty_flag = bdi.is_dirty; |
1188 | c054b3fd | Benoît Canet | info->has_dirty_flag = true;
|
1189 | c054b3fd | Benoît Canet | } |
1190 | c054b3fd | Benoît Canet | bdrv_get_backing_filename(bs, backing_filename, sizeof(backing_filename));
|
1191 | c054b3fd | Benoît Canet | if (backing_filename[0] != '\0') { |
1192 | c054b3fd | Benoît Canet | info->backing_filename = g_strdup(backing_filename); |
1193 | c054b3fd | Benoît Canet | info->has_backing_filename = true;
|
1194 | c054b3fd | Benoît Canet | bdrv_get_full_backing_filename(bs, backing_filename2, |
1195 | c054b3fd | Benoît Canet | sizeof(backing_filename2));
|
1196 | c054b3fd | Benoît Canet | |
1197 | c054b3fd | Benoît Canet | if (strcmp(backing_filename, backing_filename2) != 0) { |
1198 | c054b3fd | Benoît Canet | info->full_backing_filename = |
1199 | c054b3fd | Benoît Canet | g_strdup(backing_filename2); |
1200 | c054b3fd | Benoît Canet | info->has_full_backing_filename = true;
|
1201 | c054b3fd | Benoît Canet | } |
1202 | c054b3fd | Benoît Canet | |
1203 | c054b3fd | Benoît Canet | if (bs->backing_format[0]) { |
1204 | c054b3fd | Benoît Canet | info->backing_filename_format = g_strdup(bs->backing_format); |
1205 | c054b3fd | Benoît Canet | info->has_backing_filename_format = true;
|
1206 | c054b3fd | Benoît Canet | } |
1207 | c054b3fd | Benoît Canet | } |
1208 | c054b3fd | Benoît Canet | } |
1209 | c054b3fd | Benoît Canet | |
1210 | c054b3fd | Benoît Canet | static void dump_human_image_info(ImageInfo *info) |
1211 | c054b3fd | Benoît Canet | { |
1212 | c054b3fd | Benoît Canet | char size_buf[128], dsize_buf[128]; |
1213 | c054b3fd | Benoît Canet | if (!info->has_actual_size) {
|
1214 | c054b3fd | Benoît Canet | snprintf(dsize_buf, sizeof(dsize_buf), "unavailable"); |
1215 | c054b3fd | Benoît Canet | } else {
|
1216 | c054b3fd | Benoît Canet | get_human_readable_size(dsize_buf, sizeof(dsize_buf),
|
1217 | c054b3fd | Benoît Canet | info->actual_size); |
1218 | c054b3fd | Benoît Canet | } |
1219 | c054b3fd | Benoît Canet | get_human_readable_size(size_buf, sizeof(size_buf), info->virtual_size);
|
1220 | c054b3fd | Benoît Canet | printf("image: %s\n"
|
1221 | c054b3fd | Benoît Canet | "file format: %s\n"
|
1222 | c054b3fd | Benoît Canet | "virtual size: %s (%" PRId64 " bytes)\n" |
1223 | c054b3fd | Benoît Canet | "disk size: %s\n",
|
1224 | c054b3fd | Benoît Canet | info->filename, info->format, size_buf, |
1225 | c054b3fd | Benoît Canet | info->virtual_size, |
1226 | c054b3fd | Benoît Canet | dsize_buf); |
1227 | c054b3fd | Benoît Canet | |
1228 | c054b3fd | Benoît Canet | if (info->has_encrypted && info->encrypted) {
|
1229 | c054b3fd | Benoît Canet | printf("encrypted: yes\n");
|
1230 | c054b3fd | Benoît Canet | } |
1231 | c054b3fd | Benoît Canet | |
1232 | c054b3fd | Benoît Canet | if (info->has_cluster_size) {
|
1233 | c054b3fd | Benoît Canet | printf("cluster_size: %" PRId64 "\n", info->cluster_size); |
1234 | c054b3fd | Benoît Canet | } |
1235 | c054b3fd | Benoît Canet | |
1236 | c054b3fd | Benoît Canet | if (info->has_dirty_flag && info->dirty_flag) {
|
1237 | c054b3fd | Benoît Canet | printf("cleanly shut down: no\n");
|
1238 | c054b3fd | Benoît Canet | } |
1239 | c054b3fd | Benoît Canet | |
1240 | c054b3fd | Benoît Canet | if (info->has_backing_filename) {
|
1241 | c054b3fd | Benoît Canet | printf("backing file: %s", info->backing_filename);
|
1242 | c054b3fd | Benoît Canet | if (info->has_full_backing_filename) {
|
1243 | c054b3fd | Benoît Canet | printf(" (actual path: %s)", info->full_backing_filename);
|
1244 | c054b3fd | Benoît Canet | } |
1245 | c054b3fd | Benoît Canet | putchar('\n');
|
1246 | c054b3fd | Benoît Canet | if (info->has_backing_filename_format) {
|
1247 | c054b3fd | Benoît Canet | printf("backing file format: %s\n", info->backing_filename_format);
|
1248 | c054b3fd | Benoît Canet | } |
1249 | c054b3fd | Benoît Canet | } |
1250 | c054b3fd | Benoît Canet | } |
1251 | c054b3fd | Benoît Canet | |
1252 | c054b3fd | Benoît Canet | enum {OPTION_OUTPUT = 256}; |
1253 | c054b3fd | Benoît Canet | |
1254 | c054b3fd | Benoît Canet | typedef enum OutputFormat { |
1255 | c054b3fd | Benoît Canet | OFORMAT_JSON, |
1256 | c054b3fd | Benoît Canet | OFORMAT_HUMAN, |
1257 | c054b3fd | Benoît Canet | } OutputFormat; |
1258 | c054b3fd | Benoît Canet | |
1259 | c054b3fd | Benoît Canet | static int img_info(int argc, char **argv) |
1260 | c054b3fd | Benoît Canet | { |
1261 | c054b3fd | Benoît Canet | int c;
|
1262 | c054b3fd | Benoît Canet | OutputFormat output_format = OFORMAT_HUMAN; |
1263 | c054b3fd | Benoît Canet | const char *filename, *fmt, *output; |
1264 | c054b3fd | Benoît Canet | BlockDriverState *bs; |
1265 | c054b3fd | Benoît Canet | ImageInfo *info; |
1266 | c054b3fd | Benoît Canet | |
1267 | ea2384d3 | bellard | fmt = NULL;
|
1268 | c054b3fd | Benoît Canet | output = NULL;
|
1269 | ea2384d3 | bellard | for(;;) {
|
1270 | c054b3fd | Benoît Canet | int option_index = 0; |
1271 | c054b3fd | Benoît Canet | static const struct option long_options[] = { |
1272 | c054b3fd | Benoît Canet | {"help", no_argument, 0, 'h'}, |
1273 | c054b3fd | Benoît Canet | {"format", required_argument, 0, 'f'}, |
1274 | c054b3fd | Benoît Canet | {"output", required_argument, 0, OPTION_OUTPUT}, |
1275 | c054b3fd | Benoît Canet | {0, 0, 0, 0} |
1276 | c054b3fd | Benoît Canet | }; |
1277 | c054b3fd | Benoît Canet | c = getopt_long(argc, argv, "f:h",
|
1278 | c054b3fd | Benoît Canet | long_options, &option_index); |
1279 | b8fb60da | Jes Sorensen | if (c == -1) { |
1280 | ea2384d3 | bellard | break;
|
1281 | b8fb60da | Jes Sorensen | } |
1282 | ea2384d3 | bellard | switch(c) {
|
1283 | ef87394c | Jes Sorensen | case '?': |
1284 | ea2384d3 | bellard | case 'h': |
1285 | ea2384d3 | bellard | help(); |
1286 | ea2384d3 | bellard | break;
|
1287 | ea2384d3 | bellard | case 'f': |
1288 | ea2384d3 | bellard | fmt = optarg; |
1289 | ea2384d3 | bellard | break;
|
1290 | c054b3fd | Benoît Canet | case OPTION_OUTPUT:
|
1291 | c054b3fd | Benoît Canet | output = optarg; |
1292 | c054b3fd | Benoît Canet | break;
|
1293 | ea2384d3 | bellard | } |
1294 | ea2384d3 | bellard | } |
1295 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
1296 | ea2384d3 | bellard | help(); |
1297 | b8fb60da | Jes Sorensen | } |
1298 | ea2384d3 | bellard | filename = argv[optind++]; |
1299 | ea2384d3 | bellard | |
1300 | c054b3fd | Benoît Canet | if (output && !strcmp(output, "json")) { |
1301 | c054b3fd | Benoît Canet | output_format = OFORMAT_JSON; |
1302 | c054b3fd | Benoît Canet | } else if (output && !strcmp(output, "human")) { |
1303 | c054b3fd | Benoît Canet | output_format = OFORMAT_HUMAN; |
1304 | c054b3fd | Benoît Canet | } else if (output) { |
1305 | c054b3fd | Benoît Canet | error_report("--output must be used with human or json as argument.");
|
1306 | c2abccec | MORITA Kazutaka | return 1; |
1307 | c2abccec | MORITA Kazutaka | } |
1308 | c054b3fd | Benoît Canet | |
1309 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_NO_BACKING, false);
|
1310 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1311 | c2abccec | MORITA Kazutaka | return 1; |
1312 | faea38e7 | bellard | } |
1313 | c054b3fd | Benoît Canet | |
1314 | c054b3fd | Benoît Canet | info = g_new0(ImageInfo, 1);
|
1315 | c054b3fd | Benoît Canet | collect_image_info(bs, info, filename, fmt); |
1316 | c054b3fd | Benoît Canet | |
1317 | c054b3fd | Benoît Canet | switch (output_format) {
|
1318 | c054b3fd | Benoît Canet | case OFORMAT_HUMAN:
|
1319 | c054b3fd | Benoît Canet | dump_human_image_info(info); |
1320 | c054b3fd | Benoît Canet | dump_snapshots(bs); |
1321 | c054b3fd | Benoît Canet | break;
|
1322 | c054b3fd | Benoît Canet | case OFORMAT_JSON:
|
1323 | c054b3fd | Benoît Canet | collect_snapshots(bs, info); |
1324 | c054b3fd | Benoît Canet | dump_json_image_info(info); |
1325 | c054b3fd | Benoît Canet | break;
|
1326 | faea38e7 | bellard | } |
1327 | c054b3fd | Benoît Canet | |
1328 | c054b3fd | Benoît Canet | qapi_free_ImageInfo(info); |
1329 | ea2384d3 | bellard | bdrv_delete(bs); |
1330 | ea2384d3 | bellard | return 0; |
1331 | ea2384d3 | bellard | } |
1332 | ea2384d3 | bellard | |
1333 | f7b4a940 | aliguori | #define SNAPSHOT_LIST 1 |
1334 | f7b4a940 | aliguori | #define SNAPSHOT_CREATE 2 |
1335 | f7b4a940 | aliguori | #define SNAPSHOT_APPLY 3 |
1336 | f7b4a940 | aliguori | #define SNAPSHOT_DELETE 4 |
1337 | f7b4a940 | aliguori | |
1338 | 153859be | Stuart Brady | static int img_snapshot(int argc, char **argv) |
1339 | f7b4a940 | aliguori | { |
1340 | f7b4a940 | aliguori | BlockDriverState *bs; |
1341 | f7b4a940 | aliguori | QEMUSnapshotInfo sn; |
1342 | f7b4a940 | aliguori | char *filename, *snapshot_name = NULL; |
1343 | c2abccec | MORITA Kazutaka | int c, ret = 0, bdrv_oflags; |
1344 | f7b4a940 | aliguori | int action = 0; |
1345 | f7b4a940 | aliguori | qemu_timeval tv; |
1346 | f7b4a940 | aliguori | |
1347 | 710da702 | Kevin Wolf | bdrv_oflags = BDRV_O_FLAGS | BDRV_O_RDWR; |
1348 | f7b4a940 | aliguori | /* Parse commandline parameters */
|
1349 | f7b4a940 | aliguori | for(;;) {
|
1350 | f7b4a940 | aliguori | c = getopt(argc, argv, "la:c:d:h");
|
1351 | b8fb60da | Jes Sorensen | if (c == -1) { |
1352 | f7b4a940 | aliguori | break;
|
1353 | b8fb60da | Jes Sorensen | } |
1354 | f7b4a940 | aliguori | switch(c) {
|
1355 | ef87394c | Jes Sorensen | case '?': |
1356 | f7b4a940 | aliguori | case 'h': |
1357 | f7b4a940 | aliguori | help(); |
1358 | 153859be | Stuart Brady | return 0; |
1359 | f7b4a940 | aliguori | case 'l': |
1360 | f7b4a940 | aliguori | if (action) {
|
1361 | f7b4a940 | aliguori | help(); |
1362 | 153859be | Stuart Brady | return 0; |
1363 | f7b4a940 | aliguori | } |
1364 | f7b4a940 | aliguori | action = SNAPSHOT_LIST; |
1365 | f5edb014 | Naphtali Sprei | bdrv_oflags &= ~BDRV_O_RDWR; /* no need for RW */
|
1366 | f7b4a940 | aliguori | break;
|
1367 | f7b4a940 | aliguori | case 'a': |
1368 | f7b4a940 | aliguori | if (action) {
|
1369 | f7b4a940 | aliguori | help(); |
1370 | 153859be | Stuart Brady | return 0; |
1371 | f7b4a940 | aliguori | } |
1372 | f7b4a940 | aliguori | action = SNAPSHOT_APPLY; |
1373 | f7b4a940 | aliguori | snapshot_name = optarg; |
1374 | f7b4a940 | aliguori | break;
|
1375 | f7b4a940 | aliguori | case 'c': |
1376 | f7b4a940 | aliguori | if (action) {
|
1377 | f7b4a940 | aliguori | help(); |
1378 | 153859be | Stuart Brady | return 0; |
1379 | f7b4a940 | aliguori | } |
1380 | f7b4a940 | aliguori | action = SNAPSHOT_CREATE; |
1381 | f7b4a940 | aliguori | snapshot_name = optarg; |
1382 | f7b4a940 | aliguori | break;
|
1383 | f7b4a940 | aliguori | case 'd': |
1384 | f7b4a940 | aliguori | if (action) {
|
1385 | f7b4a940 | aliguori | help(); |
1386 | 153859be | Stuart Brady | return 0; |
1387 | f7b4a940 | aliguori | } |
1388 | f7b4a940 | aliguori | action = SNAPSHOT_DELETE; |
1389 | f7b4a940 | aliguori | snapshot_name = optarg; |
1390 | f7b4a940 | aliguori | break;
|
1391 | f7b4a940 | aliguori | } |
1392 | f7b4a940 | aliguori | } |
1393 | f7b4a940 | aliguori | |
1394 | b8fb60da | Jes Sorensen | if (optind >= argc) {
|
1395 | f7b4a940 | aliguori | help(); |
1396 | b8fb60da | Jes Sorensen | } |
1397 | f7b4a940 | aliguori | filename = argv[optind++]; |
1398 | f7b4a940 | aliguori | |
1399 | f7b4a940 | aliguori | /* Open the image */
|
1400 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, NULL, bdrv_oflags, true); |
1401 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1402 | c2abccec | MORITA Kazutaka | return 1; |
1403 | c2abccec | MORITA Kazutaka | } |
1404 | f7b4a940 | aliguori | |
1405 | f7b4a940 | aliguori | /* Perform the requested action */
|
1406 | f7b4a940 | aliguori | switch(action) {
|
1407 | f7b4a940 | aliguori | case SNAPSHOT_LIST:
|
1408 | f7b4a940 | aliguori | dump_snapshots(bs); |
1409 | f7b4a940 | aliguori | break;
|
1410 | f7b4a940 | aliguori | |
1411 | f7b4a940 | aliguori | case SNAPSHOT_CREATE:
|
1412 | f7b4a940 | aliguori | memset(&sn, 0, sizeof(sn)); |
1413 | f7b4a940 | aliguori | pstrcpy(sn.name, sizeof(sn.name), snapshot_name);
|
1414 | f7b4a940 | aliguori | |
1415 | f7b4a940 | aliguori | qemu_gettimeofday(&tv); |
1416 | f7b4a940 | aliguori | sn.date_sec = tv.tv_sec; |
1417 | f7b4a940 | aliguori | sn.date_nsec = tv.tv_usec * 1000;
|
1418 | f7b4a940 | aliguori | |
1419 | f7b4a940 | aliguori | ret = bdrv_snapshot_create(bs, &sn); |
1420 | b8fb60da | Jes Sorensen | if (ret) {
|
1421 | 15654a6d | Jes Sorensen | error_report("Could not create snapshot '%s': %d (%s)",
|
1422 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1423 | b8fb60da | Jes Sorensen | } |
1424 | f7b4a940 | aliguori | break;
|
1425 | f7b4a940 | aliguori | |
1426 | f7b4a940 | aliguori | case SNAPSHOT_APPLY:
|
1427 | f7b4a940 | aliguori | ret = bdrv_snapshot_goto(bs, snapshot_name); |
1428 | b8fb60da | Jes Sorensen | if (ret) {
|
1429 | 15654a6d | Jes Sorensen | error_report("Could not apply snapshot '%s': %d (%s)",
|
1430 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1431 | b8fb60da | Jes Sorensen | } |
1432 | f7b4a940 | aliguori | break;
|
1433 | f7b4a940 | aliguori | |
1434 | f7b4a940 | aliguori | case SNAPSHOT_DELETE:
|
1435 | f7b4a940 | aliguori | ret = bdrv_snapshot_delete(bs, snapshot_name); |
1436 | b8fb60da | Jes Sorensen | if (ret) {
|
1437 | 15654a6d | Jes Sorensen | error_report("Could not delete snapshot '%s': %d (%s)",
|
1438 | f7b4a940 | aliguori | snapshot_name, ret, strerror(-ret)); |
1439 | b8fb60da | Jes Sorensen | } |
1440 | f7b4a940 | aliguori | break;
|
1441 | f7b4a940 | aliguori | } |
1442 | f7b4a940 | aliguori | |
1443 | f7b4a940 | aliguori | /* Cleanup */
|
1444 | f7b4a940 | aliguori | bdrv_delete(bs); |
1445 | c2abccec | MORITA Kazutaka | if (ret) {
|
1446 | c2abccec | MORITA Kazutaka | return 1; |
1447 | c2abccec | MORITA Kazutaka | } |
1448 | 153859be | Stuart Brady | return 0; |
1449 | f7b4a940 | aliguori | } |
1450 | f7b4a940 | aliguori | |
1451 | 3e85c6fd | Kevin Wolf | static int img_rebase(int argc, char **argv) |
1452 | 3e85c6fd | Kevin Wolf | { |
1453 | c2abccec | MORITA Kazutaka | BlockDriverState *bs, *bs_old_backing = NULL, *bs_new_backing = NULL; |
1454 | f163d073 | Stefan Hajnoczi | BlockDriver *old_backing_drv, *new_backing_drv; |
1455 | 3e85c6fd | Kevin Wolf | char *filename;
|
1456 | 661a0f71 | Federico Simoncelli | const char *fmt, *cache, *out_basefmt, *out_baseimg; |
1457 | 3e85c6fd | Kevin Wolf | int c, flags, ret;
|
1458 | 3e85c6fd | Kevin Wolf | int unsafe = 0; |
1459 | 6b837bc4 | Jes Sorensen | int progress = 0; |
1460 | 3e85c6fd | Kevin Wolf | |
1461 | 3e85c6fd | Kevin Wolf | /* Parse commandline parameters */
|
1462 | e53dbee0 | Kevin Wolf | fmt = NULL;
|
1463 | 661a0f71 | Federico Simoncelli | cache = BDRV_DEFAULT_CACHE; |
1464 | 3e85c6fd | Kevin Wolf | out_baseimg = NULL;
|
1465 | 3e85c6fd | Kevin Wolf | out_basefmt = NULL;
|
1466 | 3e85c6fd | Kevin Wolf | for(;;) {
|
1467 | 661a0f71 | Federico Simoncelli | c = getopt(argc, argv, "uhf:F:b:pt:");
|
1468 | b8fb60da | Jes Sorensen | if (c == -1) { |
1469 | 3e85c6fd | Kevin Wolf | break;
|
1470 | b8fb60da | Jes Sorensen | } |
1471 | 3e85c6fd | Kevin Wolf | switch(c) {
|
1472 | ef87394c | Jes Sorensen | case '?': |
1473 | 3e85c6fd | Kevin Wolf | case 'h': |
1474 | 3e85c6fd | Kevin Wolf | help(); |
1475 | 3e85c6fd | Kevin Wolf | return 0; |
1476 | e53dbee0 | Kevin Wolf | case 'f': |
1477 | e53dbee0 | Kevin Wolf | fmt = optarg; |
1478 | e53dbee0 | Kevin Wolf | break;
|
1479 | 3e85c6fd | Kevin Wolf | case 'F': |
1480 | 3e85c6fd | Kevin Wolf | out_basefmt = optarg; |
1481 | 3e85c6fd | Kevin Wolf | break;
|
1482 | 3e85c6fd | Kevin Wolf | case 'b': |
1483 | 3e85c6fd | Kevin Wolf | out_baseimg = optarg; |
1484 | 3e85c6fd | Kevin Wolf | break;
|
1485 | 3e85c6fd | Kevin Wolf | case 'u': |
1486 | 3e85c6fd | Kevin Wolf | unsafe = 1;
|
1487 | 3e85c6fd | Kevin Wolf | break;
|
1488 | 6b837bc4 | Jes Sorensen | case 'p': |
1489 | 6b837bc4 | Jes Sorensen | progress = 1;
|
1490 | 6b837bc4 | Jes Sorensen | break;
|
1491 | 661a0f71 | Federico Simoncelli | case 't': |
1492 | 661a0f71 | Federico Simoncelli | cache = optarg; |
1493 | 661a0f71 | Federico Simoncelli | break;
|
1494 | 3e85c6fd | Kevin Wolf | } |
1495 | 3e85c6fd | Kevin Wolf | } |
1496 | 3e85c6fd | Kevin Wolf | |
1497 | 9a9d9dba | Anthony Liguori | if ((optind >= argc) || (!unsafe && !out_baseimg)) {
|
1498 | 3e85c6fd | Kevin Wolf | help(); |
1499 | b8fb60da | Jes Sorensen | } |
1500 | 3e85c6fd | Kevin Wolf | filename = argv[optind++]; |
1501 | 3e85c6fd | Kevin Wolf | |
1502 | 6b837bc4 | Jes Sorensen | qemu_progress_init(progress, 2.0); |
1503 | 6b837bc4 | Jes Sorensen | qemu_progress_print(0, 100); |
1504 | 6b837bc4 | Jes Sorensen | |
1505 | 661a0f71 | Federico Simoncelli | flags = BDRV_O_RDWR | (unsafe ? BDRV_O_NO_BACKING : 0);
|
1506 | c3993cdc | Stefan Hajnoczi | ret = bdrv_parse_cache_flags(cache, &flags); |
1507 | 661a0f71 | Federico Simoncelli | if (ret < 0) { |
1508 | 661a0f71 | Federico Simoncelli | error_report("Invalid cache option: %s", cache);
|
1509 | 661a0f71 | Federico Simoncelli | return -1; |
1510 | 661a0f71 | Federico Simoncelli | } |
1511 | 661a0f71 | Federico Simoncelli | |
1512 | 3e85c6fd | Kevin Wolf | /*
|
1513 | 3e85c6fd | Kevin Wolf | * Open the images.
|
1514 | 3e85c6fd | Kevin Wolf | *
|
1515 | 3e85c6fd | Kevin Wolf | * Ignore the old backing file for unsafe rebase in case we want to correct
|
1516 | 3e85c6fd | Kevin Wolf | * the reference to a renamed or moved backing file.
|
1517 | 3e85c6fd | Kevin Wolf | */
|
1518 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, fmt, flags, true);
|
1519 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1520 | c2abccec | MORITA Kazutaka | return 1; |
1521 | c2abccec | MORITA Kazutaka | } |
1522 | 3e85c6fd | Kevin Wolf | |
1523 | 3e85c6fd | Kevin Wolf | /* Find the right drivers for the backing files */
|
1524 | 3e85c6fd | Kevin Wolf | old_backing_drv = NULL;
|
1525 | 3e85c6fd | Kevin Wolf | new_backing_drv = NULL;
|
1526 | 3e85c6fd | Kevin Wolf | |
1527 | 3e85c6fd | Kevin Wolf | if (!unsafe && bs->backing_format[0] != '\0') { |
1528 | 3e85c6fd | Kevin Wolf | old_backing_drv = bdrv_find_format(bs->backing_format); |
1529 | 3e85c6fd | Kevin Wolf | if (old_backing_drv == NULL) { |
1530 | 15654a6d | Jes Sorensen | error_report("Invalid format name: '%s'", bs->backing_format);
|
1531 | c2abccec | MORITA Kazutaka | ret = -1;
|
1532 | c2abccec | MORITA Kazutaka | goto out;
|
1533 | 3e85c6fd | Kevin Wolf | } |
1534 | 3e85c6fd | Kevin Wolf | } |
1535 | 3e85c6fd | Kevin Wolf | |
1536 | 3e85c6fd | Kevin Wolf | if (out_basefmt != NULL) { |
1537 | 3e85c6fd | Kevin Wolf | new_backing_drv = bdrv_find_format(out_basefmt); |
1538 | 3e85c6fd | Kevin Wolf | if (new_backing_drv == NULL) { |
1539 | 15654a6d | Jes Sorensen | error_report("Invalid format name: '%s'", out_basefmt);
|
1540 | c2abccec | MORITA Kazutaka | ret = -1;
|
1541 | c2abccec | MORITA Kazutaka | goto out;
|
1542 | 3e85c6fd | Kevin Wolf | } |
1543 | 3e85c6fd | Kevin Wolf | } |
1544 | 3e85c6fd | Kevin Wolf | |
1545 | 3e85c6fd | Kevin Wolf | /* For safe rebasing we need to compare old and new backing file */
|
1546 | 3e85c6fd | Kevin Wolf | if (unsafe) {
|
1547 | 3e85c6fd | Kevin Wolf | /* Make the compiler happy */
|
1548 | 3e85c6fd | Kevin Wolf | bs_old_backing = NULL;
|
1549 | 3e85c6fd | Kevin Wolf | bs_new_backing = NULL;
|
1550 | 3e85c6fd | Kevin Wolf | } else {
|
1551 | 3e85c6fd | Kevin Wolf | char backing_name[1024]; |
1552 | 3e85c6fd | Kevin Wolf | |
1553 | 3e85c6fd | Kevin Wolf | bs_old_backing = bdrv_new("old_backing");
|
1554 | 3e85c6fd | Kevin Wolf | bdrv_get_backing_filename(bs, backing_name, sizeof(backing_name));
|
1555 | c2abccec | MORITA Kazutaka | ret = bdrv_open(bs_old_backing, backing_name, BDRV_O_FLAGS, |
1556 | c2abccec | MORITA Kazutaka | old_backing_drv); |
1557 | c2abccec | MORITA Kazutaka | if (ret) {
|
1558 | 15654a6d | Jes Sorensen | error_report("Could not open old backing file '%s'", backing_name);
|
1559 | c2abccec | MORITA Kazutaka | goto out;
|
1560 | 3e85c6fd | Kevin Wolf | } |
1561 | 3e85c6fd | Kevin Wolf | |
1562 | 3e85c6fd | Kevin Wolf | bs_new_backing = bdrv_new("new_backing");
|
1563 | cdbae851 | Kevin Wolf | ret = bdrv_open(bs_new_backing, out_baseimg, BDRV_O_FLAGS, |
1564 | c2abccec | MORITA Kazutaka | new_backing_drv); |
1565 | c2abccec | MORITA Kazutaka | if (ret) {
|
1566 | 15654a6d | Jes Sorensen | error_report("Could not open new backing file '%s'", out_baseimg);
|
1567 | c2abccec | MORITA Kazutaka | goto out;
|
1568 | 3e85c6fd | Kevin Wolf | } |
1569 | 3e85c6fd | Kevin Wolf | } |
1570 | 3e85c6fd | Kevin Wolf | |
1571 | 3e85c6fd | Kevin Wolf | /*
|
1572 | 3e85c6fd | Kevin Wolf | * Check each unallocated cluster in the COW file. If it is unallocated,
|
1573 | 3e85c6fd | Kevin Wolf | * accesses go to the backing file. We must therefore compare this cluster
|
1574 | 3e85c6fd | Kevin Wolf | * in the old and new backing file, and if they differ we need to copy it
|
1575 | 3e85c6fd | Kevin Wolf | * from the old backing file into the COW file.
|
1576 | 3e85c6fd | Kevin Wolf | *
|
1577 | 3e85c6fd | Kevin Wolf | * If qemu-img crashes during this step, no harm is done. The content of
|
1578 | 3e85c6fd | Kevin Wolf | * the image is the same as the original one at any time.
|
1579 | 3e85c6fd | Kevin Wolf | */
|
1580 | 3e85c6fd | Kevin Wolf | if (!unsafe) {
|
1581 | 3e85c6fd | Kevin Wolf | uint64_t num_sectors; |
1582 | 87a1b3e3 | Kevin Wolf | uint64_t old_backing_num_sectors; |
1583 | 87a1b3e3 | Kevin Wolf | uint64_t new_backing_num_sectors; |
1584 | 3e85c6fd | Kevin Wolf | uint64_t sector; |
1585 | cc60e327 | Kevin Wolf | int n;
|
1586 | d6771bfa | TeLeMan | uint8_t * buf_old; |
1587 | d6771bfa | TeLeMan | uint8_t * buf_new; |
1588 | 6b837bc4 | Jes Sorensen | float local_progress;
|
1589 | d6771bfa | TeLeMan | |
1590 | bb1c0597 | Kevin Wolf | buf_old = qemu_blockalign(bs, IO_BUF_SIZE); |
1591 | bb1c0597 | Kevin Wolf | buf_new = qemu_blockalign(bs, IO_BUF_SIZE); |
1592 | 3e85c6fd | Kevin Wolf | |
1593 | 3e85c6fd | Kevin Wolf | bdrv_get_geometry(bs, &num_sectors); |
1594 | 87a1b3e3 | Kevin Wolf | bdrv_get_geometry(bs_old_backing, &old_backing_num_sectors); |
1595 | 87a1b3e3 | Kevin Wolf | bdrv_get_geometry(bs_new_backing, &new_backing_num_sectors); |
1596 | 3e85c6fd | Kevin Wolf | |
1597 | 6b837bc4 | Jes Sorensen | local_progress = (float)100 / |
1598 | 4ee96418 | Jes Sorensen | (num_sectors / MIN(num_sectors, IO_BUF_SIZE / 512));
|
1599 | 3e85c6fd | Kevin Wolf | for (sector = 0; sector < num_sectors; sector += n) { |
1600 | 3e85c6fd | Kevin Wolf | |
1601 | 3e85c6fd | Kevin Wolf | /* How many sectors can we handle with the next read? */
|
1602 | 3e85c6fd | Kevin Wolf | if (sector + (IO_BUF_SIZE / 512) <= num_sectors) { |
1603 | 3e85c6fd | Kevin Wolf | n = (IO_BUF_SIZE / 512);
|
1604 | 3e85c6fd | Kevin Wolf | } else {
|
1605 | 3e85c6fd | Kevin Wolf | n = num_sectors - sector; |
1606 | 3e85c6fd | Kevin Wolf | } |
1607 | 3e85c6fd | Kevin Wolf | |
1608 | 3e85c6fd | Kevin Wolf | /* If the cluster is allocated, we don't need to take action */
|
1609 | cc60e327 | Kevin Wolf | ret = bdrv_is_allocated(bs, sector, n, &n); |
1610 | cc60e327 | Kevin Wolf | if (ret) {
|
1611 | 3e85c6fd | Kevin Wolf | continue;
|
1612 | 3e85c6fd | Kevin Wolf | } |
1613 | 3e85c6fd | Kevin Wolf | |
1614 | 87a1b3e3 | Kevin Wolf | /*
|
1615 | 87a1b3e3 | Kevin Wolf | * Read old and new backing file and take into consideration that
|
1616 | 87a1b3e3 | Kevin Wolf | * backing files may be smaller than the COW image.
|
1617 | 87a1b3e3 | Kevin Wolf | */
|
1618 | 87a1b3e3 | Kevin Wolf | if (sector >= old_backing_num_sectors) {
|
1619 | 87a1b3e3 | Kevin Wolf | memset(buf_old, 0, n * BDRV_SECTOR_SIZE);
|
1620 | 87a1b3e3 | Kevin Wolf | } else {
|
1621 | 87a1b3e3 | Kevin Wolf | if (sector + n > old_backing_num_sectors) {
|
1622 | 87a1b3e3 | Kevin Wolf | n = old_backing_num_sectors - sector; |
1623 | 87a1b3e3 | Kevin Wolf | } |
1624 | 87a1b3e3 | Kevin Wolf | |
1625 | 87a1b3e3 | Kevin Wolf | ret = bdrv_read(bs_old_backing, sector, buf_old, n); |
1626 | 87a1b3e3 | Kevin Wolf | if (ret < 0) { |
1627 | 87a1b3e3 | Kevin Wolf | error_report("error while reading from old backing file");
|
1628 | 87a1b3e3 | Kevin Wolf | goto out;
|
1629 | 87a1b3e3 | Kevin Wolf | } |
1630 | 3e85c6fd | Kevin Wolf | } |
1631 | 87a1b3e3 | Kevin Wolf | |
1632 | 87a1b3e3 | Kevin Wolf | if (sector >= new_backing_num_sectors) {
|
1633 | 87a1b3e3 | Kevin Wolf | memset(buf_new, 0, n * BDRV_SECTOR_SIZE);
|
1634 | 87a1b3e3 | Kevin Wolf | } else {
|
1635 | 87a1b3e3 | Kevin Wolf | if (sector + n > new_backing_num_sectors) {
|
1636 | 87a1b3e3 | Kevin Wolf | n = new_backing_num_sectors - sector; |
1637 | 87a1b3e3 | Kevin Wolf | } |
1638 | 87a1b3e3 | Kevin Wolf | |
1639 | 87a1b3e3 | Kevin Wolf | ret = bdrv_read(bs_new_backing, sector, buf_new, n); |
1640 | 87a1b3e3 | Kevin Wolf | if (ret < 0) { |
1641 | 87a1b3e3 | Kevin Wolf | error_report("error while reading from new backing file");
|
1642 | 87a1b3e3 | Kevin Wolf | goto out;
|
1643 | 87a1b3e3 | Kevin Wolf | } |
1644 | 3e85c6fd | Kevin Wolf | } |
1645 | 3e85c6fd | Kevin Wolf | |
1646 | 3e85c6fd | Kevin Wolf | /* If they differ, we need to write to the COW file */
|
1647 | 3e85c6fd | Kevin Wolf | uint64_t written = 0;
|
1648 | 3e85c6fd | Kevin Wolf | |
1649 | 3e85c6fd | Kevin Wolf | while (written < n) {
|
1650 | 3e85c6fd | Kevin Wolf | int pnum;
|
1651 | 3e85c6fd | Kevin Wolf | |
1652 | 3e85c6fd | Kevin Wolf | if (compare_sectors(buf_old + written * 512, |
1653 | 60b1bd4f | Kevin Wolf | buf_new + written * 512, n - written, &pnum))
|
1654 | 3e85c6fd | Kevin Wolf | { |
1655 | 3e85c6fd | Kevin Wolf | ret = bdrv_write(bs, sector + written, |
1656 | 3e85c6fd | Kevin Wolf | buf_old + written * 512, pnum);
|
1657 | 3e85c6fd | Kevin Wolf | if (ret < 0) { |
1658 | 15654a6d | Jes Sorensen | error_report("Error while writing to COW image: %s",
|
1659 | 3e85c6fd | Kevin Wolf | strerror(-ret)); |
1660 | c2abccec | MORITA Kazutaka | goto out;
|
1661 | 3e85c6fd | Kevin Wolf | } |
1662 | 3e85c6fd | Kevin Wolf | } |
1663 | 3e85c6fd | Kevin Wolf | |
1664 | 3e85c6fd | Kevin Wolf | written += pnum; |
1665 | 3e85c6fd | Kevin Wolf | } |
1666 | 6b837bc4 | Jes Sorensen | qemu_progress_print(local_progress, 100);
|
1667 | 3e85c6fd | Kevin Wolf | } |
1668 | d6771bfa | TeLeMan | |
1669 | bb1c0597 | Kevin Wolf | qemu_vfree(buf_old); |
1670 | bb1c0597 | Kevin Wolf | qemu_vfree(buf_new); |
1671 | 3e85c6fd | Kevin Wolf | } |
1672 | 3e85c6fd | Kevin Wolf | |
1673 | 3e85c6fd | Kevin Wolf | /*
|
1674 | 3e85c6fd | Kevin Wolf | * Change the backing file. All clusters that are different from the old
|
1675 | 3e85c6fd | Kevin Wolf | * backing file are overwritten in the COW file now, so the visible content
|
1676 | 3e85c6fd | Kevin Wolf | * doesn't change when we switch the backing file.
|
1677 | 3e85c6fd | Kevin Wolf | */
|
1678 | 3e85c6fd | Kevin Wolf | ret = bdrv_change_backing_file(bs, out_baseimg, out_basefmt); |
1679 | 3e85c6fd | Kevin Wolf | if (ret == -ENOSPC) {
|
1680 | 15654a6d | Jes Sorensen | error_report("Could not change the backing file to '%s': No "
|
1681 | 15654a6d | Jes Sorensen | "space left in the file header", out_baseimg);
|
1682 | 3e85c6fd | Kevin Wolf | } else if (ret < 0) { |
1683 | 15654a6d | Jes Sorensen | error_report("Could not change the backing file to '%s': %s",
|
1684 | 3e85c6fd | Kevin Wolf | out_baseimg, strerror(-ret)); |
1685 | 3e85c6fd | Kevin Wolf | } |
1686 | 3e85c6fd | Kevin Wolf | |
1687 | 6b837bc4 | Jes Sorensen | qemu_progress_print(100, 0); |
1688 | 3e85c6fd | Kevin Wolf | /*
|
1689 | 3e85c6fd | Kevin Wolf | * TODO At this point it is possible to check if any clusters that are
|
1690 | 3e85c6fd | Kevin Wolf | * allocated in the COW file are the same in the backing file. If so, they
|
1691 | 3e85c6fd | Kevin Wolf | * could be dropped from the COW file. Don't do this before switching the
|
1692 | 3e85c6fd | Kevin Wolf | * backing file, in case of a crash this would lead to corruption.
|
1693 | 3e85c6fd | Kevin Wolf | */
|
1694 | c2abccec | MORITA Kazutaka | out:
|
1695 | 6b837bc4 | Jes Sorensen | qemu_progress_end(); |
1696 | 3e85c6fd | Kevin Wolf | /* Cleanup */
|
1697 | 3e85c6fd | Kevin Wolf | if (!unsafe) {
|
1698 | eb863add | Kevin Wolf | if (bs_old_backing != NULL) { |
1699 | eb863add | Kevin Wolf | bdrv_delete(bs_old_backing); |
1700 | eb863add | Kevin Wolf | } |
1701 | eb863add | Kevin Wolf | if (bs_new_backing != NULL) { |
1702 | eb863add | Kevin Wolf | bdrv_delete(bs_new_backing); |
1703 | eb863add | Kevin Wolf | } |
1704 | 3e85c6fd | Kevin Wolf | } |
1705 | 3e85c6fd | Kevin Wolf | |
1706 | 3e85c6fd | Kevin Wolf | bdrv_delete(bs); |
1707 | c2abccec | MORITA Kazutaka | if (ret) {
|
1708 | c2abccec | MORITA Kazutaka | return 1; |
1709 | c2abccec | MORITA Kazutaka | } |
1710 | 3e85c6fd | Kevin Wolf | return 0; |
1711 | 3e85c6fd | Kevin Wolf | } |
1712 | 3e85c6fd | Kevin Wolf | |
1713 | ae6b0ed6 | Stefan Hajnoczi | static int img_resize(int argc, char **argv) |
1714 | ae6b0ed6 | Stefan Hajnoczi | { |
1715 | ae6b0ed6 | Stefan Hajnoczi | int c, ret, relative;
|
1716 | ae6b0ed6 | Stefan Hajnoczi | const char *filename, *fmt, *size; |
1717 | ae6b0ed6 | Stefan Hajnoczi | int64_t n, total_size; |
1718 | 2a81998a | Jes Sorensen | BlockDriverState *bs = NULL;
|
1719 | 20caf0f7 | Dong Xu Wang | QemuOpts *param; |
1720 | 20caf0f7 | Dong Xu Wang | static QemuOptsList resize_options = {
|
1721 | 20caf0f7 | Dong Xu Wang | .name = "resize_options",
|
1722 | 20caf0f7 | Dong Xu Wang | .head = QTAILQ_HEAD_INITIALIZER(resize_options.head), |
1723 | 20caf0f7 | Dong Xu Wang | .desc = { |
1724 | 20caf0f7 | Dong Xu Wang | { |
1725 | 20caf0f7 | Dong Xu Wang | .name = BLOCK_OPT_SIZE, |
1726 | 20caf0f7 | Dong Xu Wang | .type = QEMU_OPT_SIZE, |
1727 | 20caf0f7 | Dong Xu Wang | .help = "Virtual disk size"
|
1728 | 20caf0f7 | Dong Xu Wang | }, { |
1729 | 20caf0f7 | Dong Xu Wang | /* end of list */
|
1730 | 20caf0f7 | Dong Xu Wang | } |
1731 | ae6b0ed6 | Stefan Hajnoczi | }, |
1732 | ae6b0ed6 | Stefan Hajnoczi | }; |
1733 | ae6b0ed6 | Stefan Hajnoczi | |
1734 | e80fec7f | Kevin Wolf | /* Remove size from argv manually so that negative numbers are not treated
|
1735 | e80fec7f | Kevin Wolf | * as options by getopt. */
|
1736 | e80fec7f | Kevin Wolf | if (argc < 3) { |
1737 | e80fec7f | Kevin Wolf | help(); |
1738 | e80fec7f | Kevin Wolf | return 1; |
1739 | e80fec7f | Kevin Wolf | } |
1740 | e80fec7f | Kevin Wolf | |
1741 | e80fec7f | Kevin Wolf | size = argv[--argc]; |
1742 | e80fec7f | Kevin Wolf | |
1743 | e80fec7f | Kevin Wolf | /* Parse getopt arguments */
|
1744 | ae6b0ed6 | Stefan Hajnoczi | fmt = NULL;
|
1745 | ae6b0ed6 | Stefan Hajnoczi | for(;;) {
|
1746 | ae6b0ed6 | Stefan Hajnoczi | c = getopt(argc, argv, "f:h");
|
1747 | ae6b0ed6 | Stefan Hajnoczi | if (c == -1) { |
1748 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1749 | ae6b0ed6 | Stefan Hajnoczi | } |
1750 | ae6b0ed6 | Stefan Hajnoczi | switch(c) {
|
1751 | ef87394c | Jes Sorensen | case '?': |
1752 | ae6b0ed6 | Stefan Hajnoczi | case 'h': |
1753 | ae6b0ed6 | Stefan Hajnoczi | help(); |
1754 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1755 | ae6b0ed6 | Stefan Hajnoczi | case 'f': |
1756 | ae6b0ed6 | Stefan Hajnoczi | fmt = optarg; |
1757 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1758 | ae6b0ed6 | Stefan Hajnoczi | } |
1759 | ae6b0ed6 | Stefan Hajnoczi | } |
1760 | e80fec7f | Kevin Wolf | if (optind >= argc) {
|
1761 | ae6b0ed6 | Stefan Hajnoczi | help(); |
1762 | ae6b0ed6 | Stefan Hajnoczi | } |
1763 | ae6b0ed6 | Stefan Hajnoczi | filename = argv[optind++]; |
1764 | ae6b0ed6 | Stefan Hajnoczi | |
1765 | ae6b0ed6 | Stefan Hajnoczi | /* Choose grow, shrink, or absolute resize mode */
|
1766 | ae6b0ed6 | Stefan Hajnoczi | switch (size[0]) { |
1767 | ae6b0ed6 | Stefan Hajnoczi | case '+': |
1768 | ae6b0ed6 | Stefan Hajnoczi | relative = 1;
|
1769 | ae6b0ed6 | Stefan Hajnoczi | size++; |
1770 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1771 | ae6b0ed6 | Stefan Hajnoczi | case '-': |
1772 | ae6b0ed6 | Stefan Hajnoczi | relative = -1;
|
1773 | ae6b0ed6 | Stefan Hajnoczi | size++; |
1774 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1775 | ae6b0ed6 | Stefan Hajnoczi | default:
|
1776 | ae6b0ed6 | Stefan Hajnoczi | relative = 0;
|
1777 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1778 | ae6b0ed6 | Stefan Hajnoczi | } |
1779 | ae6b0ed6 | Stefan Hajnoczi | |
1780 | ae6b0ed6 | Stefan Hajnoczi | /* Parse size */
|
1781 | 20caf0f7 | Dong Xu Wang | param = qemu_opts_create(&resize_options, NULL, 0, NULL); |
1782 | 20caf0f7 | Dong Xu Wang | if (qemu_opt_set(param, BLOCK_OPT_SIZE, size)) {
|
1783 | ae6b0ed6 | Stefan Hajnoczi | /* Error message already printed when size parsing fails */
|
1784 | 2a81998a | Jes Sorensen | ret = -1;
|
1785 | 20caf0f7 | Dong Xu Wang | qemu_opts_del(param); |
1786 | 2a81998a | Jes Sorensen | goto out;
|
1787 | ae6b0ed6 | Stefan Hajnoczi | } |
1788 | 20caf0f7 | Dong Xu Wang | n = qemu_opt_get_size(param, BLOCK_OPT_SIZE, 0);
|
1789 | 20caf0f7 | Dong Xu Wang | qemu_opts_del(param); |
1790 | ae6b0ed6 | Stefan Hajnoczi | |
1791 | f0536bb8 | Daniel P. Berrange | bs = bdrv_new_open(filename, fmt, BDRV_O_FLAGS | BDRV_O_RDWR, true);
|
1792 | c2abccec | MORITA Kazutaka | if (!bs) {
|
1793 | 2a81998a | Jes Sorensen | ret = -1;
|
1794 | 2a81998a | Jes Sorensen | goto out;
|
1795 | c2abccec | MORITA Kazutaka | } |
1796 | ae6b0ed6 | Stefan Hajnoczi | |
1797 | ae6b0ed6 | Stefan Hajnoczi | if (relative) {
|
1798 | ae6b0ed6 | Stefan Hajnoczi | total_size = bdrv_getlength(bs) + n * relative; |
1799 | ae6b0ed6 | Stefan Hajnoczi | } else {
|
1800 | ae6b0ed6 | Stefan Hajnoczi | total_size = n; |
1801 | ae6b0ed6 | Stefan Hajnoczi | } |
1802 | ae6b0ed6 | Stefan Hajnoczi | if (total_size <= 0) { |
1803 | 15654a6d | Jes Sorensen | error_report("New image size must be positive");
|
1804 | c2abccec | MORITA Kazutaka | ret = -1;
|
1805 | c2abccec | MORITA Kazutaka | goto out;
|
1806 | ae6b0ed6 | Stefan Hajnoczi | } |
1807 | ae6b0ed6 | Stefan Hajnoczi | |
1808 | ae6b0ed6 | Stefan Hajnoczi | ret = bdrv_truncate(bs, total_size); |
1809 | ae6b0ed6 | Stefan Hajnoczi | switch (ret) {
|
1810 | ae6b0ed6 | Stefan Hajnoczi | case 0: |
1811 | ae6b0ed6 | Stefan Hajnoczi | printf("Image resized.\n");
|
1812 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1813 | ae6b0ed6 | Stefan Hajnoczi | case -ENOTSUP:
|
1814 | 259b2173 | Kevin Wolf | error_report("This image does not support resize");
|
1815 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1816 | ae6b0ed6 | Stefan Hajnoczi | case -EACCES:
|
1817 | 15654a6d | Jes Sorensen | error_report("Image is read-only");
|
1818 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1819 | ae6b0ed6 | Stefan Hajnoczi | default:
|
1820 | 15654a6d | Jes Sorensen | error_report("Error resizing image (%d)", -ret);
|
1821 | ae6b0ed6 | Stefan Hajnoczi | break;
|
1822 | ae6b0ed6 | Stefan Hajnoczi | } |
1823 | c2abccec | MORITA Kazutaka | out:
|
1824 | 2a81998a | Jes Sorensen | if (bs) {
|
1825 | 2a81998a | Jes Sorensen | bdrv_delete(bs); |
1826 | 2a81998a | Jes Sorensen | } |
1827 | c2abccec | MORITA Kazutaka | if (ret) {
|
1828 | c2abccec | MORITA Kazutaka | return 1; |
1829 | c2abccec | MORITA Kazutaka | } |
1830 | ae6b0ed6 | Stefan Hajnoczi | return 0; |
1831 | ae6b0ed6 | Stefan Hajnoczi | } |
1832 | ae6b0ed6 | Stefan Hajnoczi | |
1833 | c227f099 | Anthony Liguori | static const img_cmd_t img_cmds[] = { |
1834 | 153859be | Stuart Brady | #define DEF(option, callback, arg_string) \
|
1835 | 153859be | Stuart Brady | { option, callback }, |
1836 | 153859be | Stuart Brady | #include "qemu-img-cmds.h" |
1837 | 153859be | Stuart Brady | #undef DEF
|
1838 | 153859be | Stuart Brady | #undef GEN_DOCS
|
1839 | 153859be | Stuart Brady | { NULL, NULL, }, |
1840 | 153859be | Stuart Brady | }; |
1841 | 153859be | Stuart Brady | |
1842 | ea2384d3 | bellard | int main(int argc, char **argv) |
1843 | ea2384d3 | bellard | { |
1844 | c227f099 | Anthony Liguori | const img_cmd_t *cmd;
|
1845 | 153859be | Stuart Brady | const char *cmdname; |
1846 | ea2384d3 | bellard | |
1847 | 53f76e58 | Kevin Wolf | error_set_progname(argv[0]);
|
1848 | 53f76e58 | Kevin Wolf | |
1849 | ea2384d3 | bellard | bdrv_init(); |
1850 | ea2384d3 | bellard | if (argc < 2) |
1851 | ea2384d3 | bellard | help(); |
1852 | 153859be | Stuart Brady | cmdname = argv[1];
|
1853 | 8f9b157e | aurel32 | argc--; argv++; |
1854 | 153859be | Stuart Brady | |
1855 | 67d384e8 | Zhi Yong Wu | qemu_init_main_loop(); |
1856 | 67d384e8 | Zhi Yong Wu | |
1857 | 153859be | Stuart Brady | /* find the command */
|
1858 | 153859be | Stuart Brady | for(cmd = img_cmds; cmd->name != NULL; cmd++) { |
1859 | 153859be | Stuart Brady | if (!strcmp(cmdname, cmd->name)) {
|
1860 | 153859be | Stuart Brady | return cmd->handler(argc, argv);
|
1861 | 153859be | Stuart Brady | } |
1862 | ea2384d3 | bellard | } |
1863 | 153859be | Stuart Brady | |
1864 | 153859be | Stuart Brady | /* not found */
|
1865 | 153859be | Stuart Brady | help(); |
1866 | ea2384d3 | bellard | return 0; |
1867 | ea2384d3 | bellard | } |