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db9ecf05 | 1 | /* SPDX-License-Identifier: LGPL-2.1-or-later */ |
d7ccca2e | 2 | |
984bf931 | 3 | #include <errno.h> |
3f6fd1ba LP |
4 | #include <getopt.h> |
5 | #include <stdio.h> | |
6 | #include <stdlib.h> | |
d7ccca2e | 7 | |
37ec0fdd | 8 | #include "alloc-util.h" |
d6b4d1c7 | 9 | #include "build.h" |
e0b4bc23 | 10 | #include "dissect-image.h" |
a6f72863 | 11 | #include "id128-util.h" |
d7ccca2e | 12 | #include "log.h" |
3f6fd1ba | 13 | #include "machine-id-setup.h" |
0166c428 | 14 | #include "main-func.h" |
e0b4bc23 | 15 | #include "mount-util.h" |
614b022c | 16 | #include "parse-argument.h" |
0f03c2a4 | 17 | #include "path-util.h" |
294bf0c3 | 18 | #include "pretty-print.h" |
e0b4bc23 | 19 | #include "terminal-util.h" |
984bf931 | 20 | |
0f03c2a4 | 21 | static char *arg_root = NULL; |
e0b4bc23 | 22 | static char *arg_image = NULL; |
4a9b1dd4 | 23 | static bool arg_commit = false; |
487ddeb8 | 24 | static bool arg_print = false; |
92f2f92e | 25 | |
0166c428 | 26 | STATIC_DESTRUCTOR_REGISTER(arg_root, freep); |
e0b4bc23 | 27 | STATIC_DESTRUCTOR_REGISTER(arg_image, freep); |
0166c428 | 28 | |
37ec0fdd LP |
29 | static int help(void) { |
30 | _cleanup_free_ char *link = NULL; | |
31 | int r; | |
32 | ||
33 | r = terminal_urlify_man("systemd-machine-id-setup", "1", &link); | |
34 | if (r < 0) | |
35 | return log_oom(); | |
36 | ||
e0b4bc23 LP |
37 | printf("%s [OPTIONS...]\n" |
38 | "\n%sInitialize /etc/machine-id from a random source.%s\n\n" | |
984bf931 | 39 | " -h --help Show this help\n" |
92f2f92e | 40 | " --version Show package version\n" |
e0b4bc23 LP |
41 | " --root=PATH Operate relative to root path\n" |
42 | " --image=PATH Operate relative to image file\n" | |
4a9b1dd4 | 43 | " --commit Commit transient ID\n" |
487ddeb8 | 44 | " --print Print used machine ID\n" |
bc556335 DDM |
45 | "\nSee the %s for details.\n", |
46 | program_invocation_short_name, | |
e0b4bc23 LP |
47 | ansi_highlight(), |
48 | ansi_normal(), | |
bc556335 | 49 | link); |
37ec0fdd LP |
50 | |
51 | return 0; | |
984bf931 LP |
52 | } |
53 | ||
54 | static int parse_argv(int argc, char *argv[]) { | |
55 | ||
56 | enum { | |
92f2f92e GKH |
57 | ARG_VERSION = 0x100, |
58 | ARG_ROOT, | |
e0b4bc23 | 59 | ARG_IMAGE, |
4a9b1dd4 | 60 | ARG_COMMIT, |
487ddeb8 | 61 | ARG_PRINT, |
984bf931 LP |
62 | }; |
63 | ||
64 | static const struct option options[] = { | |
65 | { "help", no_argument, NULL, 'h' }, | |
66 | { "version", no_argument, NULL, ARG_VERSION }, | |
92f2f92e | 67 | { "root", required_argument, NULL, ARG_ROOT }, |
e0b4bc23 | 68 | { "image", required_argument, NULL, ARG_IMAGE }, |
4a9b1dd4 | 69 | { "commit", no_argument, NULL, ARG_COMMIT }, |
487ddeb8 | 70 | { "print", no_argument, NULL, ARG_PRINT }, |
eb9da376 | 71 | {} |
984bf931 LP |
72 | }; |
73 | ||
0f03c2a4 | 74 | int c, r; |
984bf931 LP |
75 | |
76 | assert(argc >= 0); | |
77 | assert(argv); | |
78 | ||
4a434023 | 79 | while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) |
984bf931 LP |
80 | |
81 | switch (c) { | |
82 | ||
83 | case 'h': | |
37ec0fdd | 84 | return help(); |
984bf931 LP |
85 | |
86 | case ARG_VERSION: | |
3f6fd1ba | 87 | return version(); |
984bf931 | 88 | |
92f2f92e | 89 | case ARG_ROOT: |
614b022c | 90 | r = parse_path_argument(optarg, true, &arg_root); |
0f03c2a4 LP |
91 | if (r < 0) |
92 | return r; | |
92f2f92e GKH |
93 | break; |
94 | ||
e0b4bc23 LP |
95 | case ARG_IMAGE: |
96 | r = parse_path_argument(optarg, false, &arg_image); | |
97 | if (r < 0) | |
98 | return r; | |
99 | break; | |
100 | ||
4a9b1dd4 LP |
101 | case ARG_COMMIT: |
102 | arg_commit = true; | |
103 | break; | |
104 | ||
487ddeb8 LP |
105 | case ARG_PRINT: |
106 | arg_print = true; | |
107 | break; | |
108 | ||
984bf931 LP |
109 | case '?': |
110 | return -EINVAL; | |
111 | ||
112 | default: | |
04499a70 | 113 | assert_not_reached(); |
984bf931 | 114 | } |
984bf931 | 115 | |
baaa35ad ZJS |
116 | if (optind < argc) |
117 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), | |
118 | "Extraneous arguments"); | |
984bf931 | 119 | |
e0b4bc23 LP |
120 | if (arg_image && arg_root) |
121 | return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported."); | |
122 | ||
984bf931 LP |
123 | return 1; |
124 | } | |
d7ccca2e | 125 | |
0166c428 | 126 | static int run(int argc, char *argv[]) { |
e0b4bc23 | 127 | _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL; |
e0b4bc23 | 128 | _cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL; |
487ddeb8 | 129 | sd_id128_t id; |
984bf931 | 130 | int r; |
d7ccca2e | 131 | |
d7ccca2e LP |
132 | log_parse_environment(); |
133 | log_open(); | |
134 | ||
984bf931 LP |
135 | r = parse_argv(argc, argv); |
136 | if (r <= 0) | |
0166c428 | 137 | return r; |
984bf931 | 138 | |
e0b4bc23 LP |
139 | if (arg_image) { |
140 | assert(!arg_root); | |
141 | ||
142 | r = mount_image_privately_interactively( | |
143 | arg_image, | |
144 | DISSECT_IMAGE_REQUIRE_ROOT | | |
145 | DISSECT_IMAGE_VALIDATE_OS | | |
146 | DISSECT_IMAGE_RELAX_VAR_CHECK | | |
c65f854a LP |
147 | DISSECT_IMAGE_FSCK | |
148 | DISSECT_IMAGE_GROWFS, | |
e0b4bc23 | 149 | &unlink_dir, |
e330f97a | 150 | &loop_device); |
e0b4bc23 LP |
151 | if (r < 0) |
152 | return r; | |
153 | ||
154 | arg_root = strdup(unlink_dir); | |
155 | if (!arg_root) | |
156 | return log_oom(); | |
157 | } | |
158 | ||
487ddeb8 | 159 | if (arg_commit) { |
a6f72863 EV |
160 | const char *etc_machine_id; |
161 | ||
4a9b1dd4 | 162 | r = machine_id_commit(arg_root); |
487ddeb8 | 163 | if (r < 0) |
0166c428 | 164 | return r; |
487ddeb8 | 165 | |
a6f72863 | 166 | etc_machine_id = prefix_roota(arg_root, "/etc/machine-id"); |
057bf780 | 167 | r = id128_read(etc_machine_id, ID128_FORMAT_PLAIN, &id); |
0166c428 YW |
168 | if (r < 0) |
169 | return log_error_errno(r, "Failed to read machine ID back: %m"); | |
487ddeb8 | 170 | } else { |
3023f2fe | 171 | r = machine_id_setup(arg_root, false, SD_ID128_NULL, &id); |
487ddeb8 | 172 | if (r < 0) |
0166c428 | 173 | return r; |
487ddeb8 LP |
174 | } |
175 | ||
176 | if (arg_print) | |
85b55869 | 177 | puts(SD_ID128_TO_STRING(id)); |
4a9b1dd4 | 178 | |
0166c428 | 179 | return 0; |
d7ccca2e | 180 | } |
0166c428 YW |
181 | |
182 | DEFINE_MAIN_FUNCTION(run); |