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machine-id: use static destructor and DEFINE_MAIN_FUNCTION() macro
[thirdparty/systemd.git] / src / firstboot / firstboot.c
CommitLineData
53e1b683 1/* SPDX-License-Identifier: LGPL-2.1+ */
418b9be5 2
418b9be5 3#include <fcntl.h>
418b9be5 4#include <getopt.h>
3f6fd1ba 5#include <unistd.h>
418b9be5 6
545cdb90 7#if HAVE_CRYPT_H
9f555bba
BE		 8/* libxcrypt is a replacement for glibc's libcrypt, and libcrypt might be
9 * removed from glibc at some point. As part of the removal, defines for
10 * crypt(3) are dropped from unistd.h, and we must include crypt.h instead.
11 *
12 * Newer versions of glibc (v2.0+) already ship crypt.h with a definition
13 * of crypt(3) as well, so we simply include it if it is present. MariaDB,
14 * MySQL, PostgreSQL, Perl and some other wide-spread packages do it the
15 * same way since ages without any problems.
16 */
17# include <crypt.h>
18#endif
19
dccca82b
LP		 20#include "sd-id128.h"
21
b5efdb8a 22#include "alloc-util.h"
3f6fd1ba 23#include "ask-password-api.h"
418b9be5 24#include "copy.h"
6bedfcbb 25#include "fd-util.h"
3f6fd1ba 26#include "fileio.h"
f4f15635 27#include "fs-util.h"
3f6fd1ba
LP		 28#include "hostname-util.h"
29#include "locale-util.h"
45f39418 30#include "main-func.h"
418b9be5 31#include "mkdir.h"
d58ad743 32#include "os-util.h"
6bedfcbb 33#include "parse-util.h"
418b9be5 34#include "path-util.h"
f582cbca 35#include "proc-cmdline.h"
3df3e884 36#include "random-util.h"
6bedfcbb 37#include "string-util.h"
3f6fd1ba 38#include "strv.h"
288a74cc 39#include "terminal-util.h"
3f6fd1ba 40#include "time-util.h"
affb60b1 41#include "umask-util.h"
e929bee0 42#include "user-util.h"
418b9be5
LP		 43
44static char *arg_root = NULL;
45static char *arg_locale = NULL; /* $LANG */
ed457f13 46static char *arg_keymap = NULL;
418b9be5
LP		 47static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
48static char *arg_timezone = NULL;
49static char *arg_hostname = NULL;
50static sd_id128_t arg_machine_id = {};
51static char *arg_root_password = NULL;
52static bool arg_prompt_locale = false;
ed457f13 53static bool arg_prompt_keymap = false;
418b9be5
LP		 54static bool arg_prompt_timezone = false;
55static bool arg_prompt_hostname = false;
56static bool arg_prompt_root_password = false;
57static bool arg_copy_locale = false;
ed457f13 58static bool arg_copy_keymap = false;
418b9be5
LP		 59static bool arg_copy_timezone = false;
60static bool arg_copy_root_password = false;
61
45f39418
YW		 62STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
63STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
64STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
65STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
66STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
67STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
68STATIC_DESTRUCTOR_REGISTER(arg_root_password, string_free_erasep);
69
418b9be5
LP		 70static bool press_any_key(void) {
71 char k = 0;
72 bool need_nl = true;
73
74 printf("-- Press any key to proceed --");
75 fflush(stdout);
76
94956f8f 77 (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
418b9be5
LP		 78
79 if (need_nl)
80 putchar('\n');
81
82 return k != 'q';
83}
84
85static void print_welcome(void) {
86 _cleanup_free_ char *pretty_name = NULL;
418b9be5
LP		 87 static bool done = false;
88 int r;
89
90 if (done)
91 return;
92
d58ad743
LP		 93 r = parse_os_release(arg_root, "PRETTY_NAME", &pretty_name, NULL);
94 if (r < 0)
95 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
96 "Failed to read os-release file, ignoring: %m");
418b9be5
LP		 97
98 printf("\nWelcome to your new installation of %s!\nPlease configure a few basic system settings:\n\n",
99 isempty(pretty_name) ? "Linux" : pretty_name);
100
101 press_any_key();
102
103 done = true;
104}
105
106static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
418b9be5 107 unsigned break_lines, break_modulo;
da6053d0 108 size_t n, per_column, i, j;
418b9be5
LP		 109
110 assert(n_columns > 0);
111
112 n = strv_length(x);
be6b0c21 113 per_column = DIV_ROUND_UP(n, n_columns);
418b9be5
LP		 114
115 break_lines = lines();
116 if (break_lines > 2)
117 break_lines--;
118
119 /* The first page gets two extra lines, since we want to show
120 * a title */
121 break_modulo = break_lines;
122 if (break_modulo > 3)
123 break_modulo -= 3;
124
125 for (i = 0; i < per_column; i++) {
126
127 for (j = 0; j < n_columns; j ++) {
128 _cleanup_free_ char *e = NULL;
129
130 if (j * per_column + i >= n)
131 break;
132
133 e = ellipsize(x[j * per_column + i], width, percentage);
134 if (!e)
135 return log_oom();
136
da6053d0 137 printf("%4zu) %-*s", j * per_column + i + 1, width, e);
418b9be5
LP		 138 }
139
140 putchar('\n');
141
142 /* on the first screen we reserve 2 extra lines for the title */
143 if (i % break_lines == break_modulo) {
144 if (!press_any_key())
145 return 0;
146 }
147 }
148
149 return 0;
150}
151
152static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
153 int r;
154
155 assert(text);
156 assert(is_valid);
157 assert(ret);
158
159 for (;;) {
160 _cleanup_free_ char *p = NULL;
161 unsigned u;
162
323b7dc9 163 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(TRIANGULAR_BULLET), text);
23bbb0de
MS		 164 if (r < 0)
165 return log_error_errno(r, "Failed to query user: %m");
418b9be5
LP		 166
167 if (isempty(p)) {
168 log_warning("No data entered, skipping.");
169 return 0;
170 }
171
172 r = safe_atou(p, &u);
173 if (r >= 0) {
174 char *c;
175
176 if (u <= 0 || u > strv_length(l)) {
177 log_error("Specified entry number out of range.");
178 continue;
179 }
180
181 log_info("Selected '%s'.", l[u-1]);
182
183 c = strdup(l[u-1]);
184 if (!c)
185 return log_oom();
186
187 free(*ret);
188 *ret = c;
189 return 0;
190 }
191
192 if (!is_valid(p)) {
193 log_error("Entered data invalid.");
194 continue;
195 }
196
197 free(*ret);
198 *ret = p;
199 p = 0;
200 return 0;
201 }
202}
203
204static int prompt_locale(void) {
205 _cleanup_strv_free_ char **locales = NULL;
206 int r;
207
208 if (arg_locale || arg_locale_messages)
209 return 0;
210
211 if (!arg_prompt_locale)
212 return 0;
213
214 r = get_locales(&locales);
23bbb0de
MS		 215 if (r < 0)
216 return log_error_errno(r, "Cannot query locales list: %m");
418b9be5
LP		 217
218 print_welcome();
219
220 printf("\nAvailable Locales:\n\n");
221 r = show_menu(locales, 3, 22, 60);
222 if (r < 0)
223 return r;
224
225 putchar('\n');
226
227 r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale);
228 if (r < 0)
229 return r;
230
231 if (isempty(arg_locale))
232 return 0;
233
234 r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages);
235 if (r < 0)
236 return r;
237
238 return 0;
239}
240
241static int process_locale(void) {
242 const char *etc_localeconf;
243 char* locales[3];
244 unsigned i = 0;
245 int r;
246
1d13f648 247 etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
b3cd687d 248 if (laccess(etc_localeconf, F_OK) >= 0)
418b9be5
LP		 249 return 0;
250
251 if (arg_copy_locale && arg_root) {
252
253 mkdir_parents(etc_localeconf, 0755);
1c876927 254 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, COPY_REFLINK);
418b9be5 255 if (r != -ENOENT) {
23bbb0de
MS		 256 if (r < 0)
257 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
418b9be5
LP		 258
259 log_info("%s copied.", etc_localeconf);
260 return 0;
261 }
262 }
263
264 r = prompt_locale();
265 if (r < 0)
266 return r;
267
268 if (!isempty(arg_locale))
63c372cb 269 locales[i++] = strjoina("LANG=", arg_locale);
418b9be5 270 if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
63c372cb 271 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
418b9be5
LP		 272
273 if (i == 0)
274 return 0;
275
276 locales[i] = NULL;
277
278 mkdir_parents(etc_localeconf, 0755);
279 r = write_env_file(etc_localeconf, locales);
23bbb0de
MS		 280 if (r < 0)
281 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
418b9be5
LP		 282
283 log_info("%s written.", etc_localeconf);
284 return 0;
285}
286
ed457f13
TB		 287static int prompt_keymap(void) {
288 _cleanup_strv_free_ char **kmaps = NULL;
289 int r;
290
291 if (arg_keymap)
292 return 0;
293
294 if (!arg_prompt_keymap)
295 return 0;
296
297 r = get_keymaps(&kmaps);
298 if (r == -ENOENT) /* no keymaps installed */
299 return r;
300 if (r < 0)
301 return log_error_errno(r, "Failed to read keymaps: %m");
302
303 print_welcome();
304
305 printf("\nAvailable keymaps:\n\n");
306 r = show_menu(kmaps, 3, 22, 60);
307 if (r < 0)
308 return r;
309
310 putchar('\n');
311
8700b4da
ZJS		 312 return prompt_loop("Please enter system keymap name or number",
313 kmaps, keymap_is_valid, &arg_keymap);
ed457f13
TB		 314}
315
316static int process_keymap(void) {
317 const char *etc_vconsoleconf;
318 char **keymap;
319 int r;
320
321 etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
322 if (laccess(etc_vconsoleconf, F_OK) >= 0)
323 return 0;
324
325 if (arg_copy_keymap && arg_root) {
326
327 mkdir_parents(etc_vconsoleconf, 0755);
328 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, COPY_REFLINK);
329 if (r != -ENOENT) {
330 if (r < 0)
331 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
332
333 log_info("%s copied.", etc_vconsoleconf);
334 return 0;
335 }
336 }
337
338 r = prompt_keymap();
339 if (r == -ENOENT)
340 return 0; /* don't fail if no keymaps are installed */
341 if (r < 0)
342 return r;
343
a7353b4d 344 if (isempty(arg_keymap))
ed457f13
TB		 345 return 0;
346
a7353b4d
YW		 347 keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
348
349 r = mkdir_parents(etc_vconsoleconf, 0755);
350 if (r < 0)
351 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
352
ed457f13
TB		 353 r = write_env_file(etc_vconsoleconf, keymap);
354 if (r < 0)
355 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
356
357 log_info("%s written.", etc_vconsoleconf);
358 return 0;
359}
360
089fb865
MG		 361static bool timezone_is_valid_log_error(const char *name) {
362 return timezone_is_valid(name, LOG_ERR);
363}
364
418b9be5
LP		 365static int prompt_timezone(void) {
366 _cleanup_strv_free_ char **zones = NULL;
367 int r;
368
369 if (arg_timezone)
370 return 0;
371
372 if (!arg_prompt_timezone)
373 return 0;
374
375 r = get_timezones(&zones);
23bbb0de
MS		 376 if (r < 0)
377 return log_error_errno(r, "Cannot query timezone list: %m");
418b9be5
LP		 378
379 print_welcome();
380
381 printf("\nAvailable Time Zones:\n\n");
382 r = show_menu(zones, 3, 22, 30);
383 if (r < 0)
384 return r;
385
386 putchar('\n');
387
089fb865 388 r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
418b9be5
LP		 389 if (r < 0)
390 return r;
391
392 return 0;
393}
394
395static int process_timezone(void) {
396 const char *etc_localtime, *e;
397 int r;
398
1d13f648 399 etc_localtime = prefix_roota(arg_root, "/etc/localtime");
b3cd687d 400 if (laccess(etc_localtime, F_OK) >= 0)
418b9be5
LP		 401 return 0;
402
403 if (arg_copy_timezone && arg_root) {
404 _cleanup_free_ char *p = NULL;
405
406 r = readlink_malloc("/etc/localtime", &p);
407 if (r != -ENOENT) {
23bbb0de
MS		 408 if (r < 0)
409 return log_error_errno(r, "Failed to read host timezone: %m");
418b9be5
LP		 410
411 mkdir_parents(etc_localtime, 0755);
4a62c710
MS		 412 if (symlink(p, etc_localtime) < 0)
413 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
418b9be5
LP		 414
415 log_info("%s copied.", etc_localtime);
416 return 0;
417 }
418 }
419
420 r = prompt_timezone();
421 if (r < 0)
422 return r;
423
424 if (isempty(arg_timezone))
425 return 0;
426
63c372cb 427 e = strjoina("../usr/share/zoneinfo/", arg_timezone);
418b9be5
LP		 428
429 mkdir_parents(etc_localtime, 0755);
4a62c710
MS		 430 if (symlink(e, etc_localtime) < 0)
431 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
418b9be5
LP		 432
433 log_info("%s written", etc_localtime);
434 return 0;
435}
436
437static int prompt_hostname(void) {
438 int r;
439
440 if (arg_hostname)
441 return 0;
442
443 if (!arg_prompt_hostname)
444 return 0;
445
446 print_welcome();
447 putchar('\n');
448
449 for (;;) {
450 _cleanup_free_ char *h = NULL;
451
323b7dc9 452 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(TRIANGULAR_BULLET));
23bbb0de
MS		 453 if (r < 0)
454 return log_error_errno(r, "Failed to query hostname: %m");
418b9be5
LP		 455
456 if (isempty(h)) {
457 log_warning("No hostname entered, skipping.");
458 break;
459 }
460
34ad6090 461 if (!hostname_is_valid(h, true)) {
418b9be5
LP		 462 log_error("Specified hostname invalid.");
463 continue;
464 }
465
34ad6090 466 /* Get rid of the trailing dot that we allow, but don't want to see */
ae691c1d 467 arg_hostname = hostname_cleanup(h);
418b9be5
LP		 468 h = NULL;
469 break;
470 }
471
472 return 0;
473}
474
475static int process_hostname(void) {
476 const char *etc_hostname;
477 int r;
478
1d13f648 479 etc_hostname = prefix_roota(arg_root, "/etc/hostname");
b3cd687d 480 if (laccess(etc_hostname, F_OK) >= 0)
418b9be5
LP		 481 return 0;
482
483 r = prompt_hostname();
484 if (r < 0)
485 return r;
486
487 if (isempty(arg_hostname))
488 return 0;
489
490 mkdir_parents(etc_hostname, 0755);
0675e94a
AJ		 491 r = write_string_file(etc_hostname, arg_hostname,
492 WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
23bbb0de
MS		 493 if (r < 0)
494 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
418b9be5
LP		 495
496 log_info("%s written.", etc_hostname);
497 return 0;
498}
499
500static int process_machine_id(void) {
501 const char *etc_machine_id;
502 char id[SD_ID128_STRING_MAX];
503 int r;
504
1d13f648 505 etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
b3cd687d 506 if (laccess(etc_machine_id, F_OK) >= 0)
418b9be5
LP		 507 return 0;
508
3bbaff3e 509 if (sd_id128_is_null(arg_machine_id))
418b9be5
LP		 510 return 0;
511
512 mkdir_parents(etc_machine_id, 0755);
0675e94a
AJ		 513 r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
514 WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
23bbb0de
MS		 515 if (r < 0)
516 return log_error_errno(r, "Failed to write machine id: %m");
418b9be5
LP		 517
518 log_info("%s written.", etc_machine_id);
519 return 0;
520}
521
522static int prompt_root_password(void) {
523 const char *msg1, *msg2, *etc_shadow;
524 int r;
525
526 if (arg_root_password)
527 return 0;
528
529 if (!arg_prompt_root_password)
530 return 0;
531
1d13f648 532 etc_shadow = prefix_roota(arg_root, "/etc/shadow");
b3cd687d 533 if (laccess(etc_shadow, F_OK) >= 0)
418b9be5
LP		 534 return 0;
535
536 print_welcome();
537 putchar('\n');
538
323b7dc9
ZJS		 539 msg1 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
540 msg2 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter new root password again: ");
418b9be5
LP		 541
542 for (;;) {
c7b7d74e 543 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
418b9be5 544
daa55720 545 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
23bbb0de
MS		 546 if (r < 0)
547 return log_error_errno(r, "Failed to query root password: %m");
c7b7d74e
XF		 548 if (strv_length(a) != 1) {
549 log_warning("Received multiple passwords, where we expected one.");
550 return -EINVAL;
551 }
418b9be5 552
c7b7d74e 553 if (isempty(*a)) {
418b9be5
LP		 554 log_warning("No password entered, skipping.");
555 break;
556 }
557
daa55720 558 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
ab84f5b9 559 if (r < 0)
00843602 560 return log_error_errno(r, "Failed to query root password: %m");
418b9be5 561
c7b7d74e 562 if (!streq(*a, *b)) {
418b9be5 563 log_error("Entered passwords did not match, please try again.");
418b9be5
LP		 564 continue;
565 }
566
c7b7d74e 567 arg_root_password = TAKE_PTR(*a);
418b9be5
LP		 568 break;
569 }
570
571 return 0;
572}
573
574static int write_root_shadow(const char *path, const struct spwd *p) {
575 _cleanup_fclose_ FILE *f = NULL;
100d5f6e
FB		 576 int r;
577
418b9be5
LP		 578 assert(path);
579 assert(p);
580
3250929b
LP		 581 RUN_WITH_UMASK(0777)
582 f = fopen(path, "wex");
418b9be5
LP		 583 if (!f)
584 return -errno;
585
100d5f6e
FB		 586 r = putspent_sane(p, f);
587 if (r < 0)
588 return r;
418b9be5 589
0675e94a 590 return fflush_sync_and_check(f);
418b9be5
LP		 591}
592
593static int process_root_password(void) {
594
595 static const char table[] =
596 "abcdefghijklmnopqrstuvwxyz"
597 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
598 "0123456789"
599 "./";
600
601 struct spwd item = {
602 .sp_namp = (char*) "root",
ad525df8
IS		 603 .sp_min = -1,
604 .sp_max = -1,
605 .sp_warn = -1,
418b9be5
LP		 606 .sp_inact = -1,
607 .sp_expire = -1,
608 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
609 };
45035609
LP		 610
611 _cleanup_close_ int lock = -1;
418b9be5
LP		 612 char salt[3+16+1+1];
613 uint8_t raw[16];
614 unsigned i;
615 char *j;
616
617 const char *etc_shadow;
618 int r;
619
1d13f648 620 etc_shadow = prefix_roota(arg_root, "/etc/shadow");
b3cd687d 621 if (laccess(etc_shadow, F_OK) >= 0)
418b9be5
LP		 622 return 0;
623
45035609
LP		 624 mkdir_parents(etc_shadow, 0755);
625
e929bee0 626 lock = take_etc_passwd_lock(arg_root);
45035609 627 if (lock < 0)
db260eed 628 return log_error_errno(lock, "Failed to take a lock: %m");
45035609 629
418b9be5
LP		 630 if (arg_copy_root_password && arg_root) {
631 struct spwd *p;
632
633 errno = 0;
634 p = getspnam("root");
635 if (p || errno != ENOENT) {
636 if (!p) {
637 if (!errno)
638 errno = EIO;
639
e1427b13 640 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
418b9be5
LP		 641 }
642
643 r = write_root_shadow(etc_shadow, p);
23bbb0de
MS		 644 if (r < 0)
645 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
418b9be5
LP		 646
647 log_info("%s copied.", etc_shadow);
648 return 0;
649 }
650 }
651
652 r = prompt_root_password();
653 if (r < 0)
654 return r;
655
656 if (!arg_root_password)
657 return 0;
658
68534345
LP		 659 /* Insist on the best randomness by setting RANDOM_BLOCK, this is about keeping passwords secret after all. */
660 r = genuine_random_bytes(raw, 16, RANDOM_BLOCK);
23bbb0de
MS		 661 if (r < 0)
662 return log_error_errno(r, "Failed to get salt: %m");
418b9be5
LP		 663
664 /* We only bother with SHA512 hashed passwords, the rest is legacy, and we don't do legacy. */
665 assert_cc(sizeof(table) == 64 + 1);
666 j = stpcpy(salt, "$6$");
667 for (i = 0; i < 16; i++)
668 j[i] = table[raw[i] & 63];
669 j[i++] = '$';
670 j[i] = 0;
671
672 errno = 0;
673 item.sp_pwdp = crypt(arg_root_password, salt);
674 if (!item.sp_pwdp) {
675 if (!errno)
4546c341 676 errno = EINVAL;
418b9be5 677
e1427b13 678 return log_error_errno(errno, "Failed to encrypt password: %m");
418b9be5
LP		 679 }
680
681 item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
682
683 r = write_root_shadow(etc_shadow, &item);
23bbb0de
MS		 684 if (r < 0)
685 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
418b9be5
LP		 686
687 log_info("%s written.", etc_shadow);
688 return 0;
689}
690
37ec0fdd
LP		 691static int help(void) {
692 _cleanup_free_ char *link = NULL;
693 int r;
694
695 r = terminal_urlify_man("systemd-firstboot", "1", &link);
696 if (r < 0)
697 return log_oom();
698
418b9be5
LP		 699 printf("%s [OPTIONS...]\n\n"
700 "Configures basic settings of the system.\n\n"
701 " -h --help Show this help\n"
702 " --version Show package version\n"
703 " --root=PATH Operate on an alternate filesystem root\n"
704 " --locale=LOCALE Set primary locale (LANG=)\n"
705 " --locale-messages=LOCALE Set message locale (LC_MESSAGES=)\n"
ed457f13 706 " --keymap=KEYMAP Set keymap\n"
418b9be5
LP		 707 " --timezone=TIMEZONE Set timezone\n"
708 " --hostname=NAME Set host name\n"
709 " --machine-ID=ID Set machine ID\n"
710 " --root-password=PASSWORD Set root password\n"
711 " --root-password-file=FILE Set root password from file\n"
712 " --prompt-locale Prompt the user for locale settings\n"
ed457f13 713 " --prompt-keymap Prompt the user for keymap settings\n"
418b9be5
LP		 714 " --prompt-timezone Prompt the user for timezone\n"
715 " --prompt-hostname Prompt the user for hostname\n"
716 " --prompt-root-password Prompt the user for root password\n"
b57b0625 717 " --prompt Prompt for all of the above\n"
418b9be5 718 " --copy-locale Copy locale from host\n"
ed457f13 719 " --copy-keymap Copy keymap from host\n"
418b9be5
LP		 720 " --copy-timezone Copy timezone from host\n"
721 " --copy-root-password Copy root password from host\n"
ed457f13 722 " --copy Copy locale, keymap, timezone, root password\n"
601185b4 723 " --setup-machine-id Generate a new random machine ID\n"
37ec0fdd
LP		 724 "\nSee the %s for details.\n"
725 , program_invocation_short_name
726 , link
727 );
728
729 return 0;
418b9be5
LP		 730}
731
732static int parse_argv(int argc, char *argv[]) {
733
734 enum {
735 ARG_VERSION = 0x100,
736 ARG_ROOT,
737 ARG_LOCALE,
738 ARG_LOCALE_MESSAGES,
ed457f13 739 ARG_KEYMAP,
418b9be5
LP		 740 ARG_TIMEZONE,
741 ARG_HOSTNAME,
742 ARG_MACHINE_ID,
743 ARG_ROOT_PASSWORD,
744 ARG_ROOT_PASSWORD_FILE,
745 ARG_PROMPT,
746 ARG_PROMPT_LOCALE,
ed457f13 747 ARG_PROMPT_KEYMAP,
418b9be5
LP		 748 ARG_PROMPT_TIMEZONE,
749 ARG_PROMPT_HOSTNAME,
750 ARG_PROMPT_ROOT_PASSWORD,
751 ARG_COPY,
752 ARG_COPY_LOCALE,
ed457f13 753 ARG_COPY_KEYMAP,
418b9be5
LP		 754 ARG_COPY_TIMEZONE,
755 ARG_COPY_ROOT_PASSWORD,
756 ARG_SETUP_MACHINE_ID,
757 };
758
759 static const struct option options[] = {
760 { "help", no_argument, NULL, 'h' },
761 { "version", no_argument, NULL, ARG_VERSION },
762 { "root", required_argument, NULL, ARG_ROOT },
763 { "locale", required_argument, NULL, ARG_LOCALE },
764 { "locale-messages", required_argument, NULL, ARG_LOCALE_MESSAGES },
ed457f13 765 { "keymap", required_argument, NULL, ARG_KEYMAP },
418b9be5
LP		 766 { "timezone", required_argument, NULL, ARG_TIMEZONE },
767 { "hostname", required_argument, NULL, ARG_HOSTNAME },
768 { "machine-id", required_argument, NULL, ARG_MACHINE_ID },
769 { "root-password", required_argument, NULL, ARG_ROOT_PASSWORD },
770 { "root-password-file", required_argument, NULL, ARG_ROOT_PASSWORD_FILE },
771 { "prompt", no_argument, NULL, ARG_PROMPT },
772 { "prompt-locale", no_argument, NULL, ARG_PROMPT_LOCALE },
ed457f13 773 { "prompt-keymap", no_argument, NULL, ARG_PROMPT_KEYMAP },
418b9be5
LP		 774 { "prompt-timezone", no_argument, NULL, ARG_PROMPT_TIMEZONE },
775 { "prompt-hostname", no_argument, NULL, ARG_PROMPT_HOSTNAME },
776 { "prompt-root-password", no_argument, NULL, ARG_PROMPT_ROOT_PASSWORD },
777 { "copy", no_argument, NULL, ARG_COPY },
778 { "copy-locale", no_argument, NULL, ARG_COPY_LOCALE },
ed457f13 779 { "copy-keymap", no_argument, NULL, ARG_COPY_KEYMAP },
418b9be5
LP		 780 { "copy-timezone", no_argument, NULL, ARG_COPY_TIMEZONE },
781 { "copy-root-password", no_argument, NULL, ARG_COPY_ROOT_PASSWORD },
782 { "setup-machine-id", no_argument, NULL, ARG_SETUP_MACHINE_ID },
783 {}
784 };
785
786 int r, c;
787
788 assert(argc >= 0);
789 assert(argv);
790
601185b4 791 while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
418b9be5
LP		 792
793 switch (c) {
794
795 case 'h':
37ec0fdd 796 return help();
418b9be5
LP		 797
798 case ARG_VERSION:
3f6fd1ba 799 return version();
418b9be5
LP		 800
801 case ARG_ROOT:
0f03c2a4 802 r = parse_path_argument_and_warn(optarg, true, &arg_root);
0f474365 803 if (r < 0)
0f03c2a4 804 return r;
418b9be5
LP		 805 break;
806
807 case ARG_LOCALE:
808 if (!locale_is_valid(optarg)) {
809 log_error("Locale %s is not valid.", optarg);
810 return -EINVAL;
811 }
812
2fc09a9c
DM		 813 r = free_and_strdup(&arg_locale, optarg);
814 if (r < 0)
418b9be5
LP		 815 return log_oom();
816
817 break;
818
819 case ARG_LOCALE_MESSAGES:
820 if (!locale_is_valid(optarg)) {
821 log_error("Locale %s is not valid.", optarg);
822 return -EINVAL;
823 }
824
2fc09a9c
DM		 825 r = free_and_strdup(&arg_locale_messages, optarg);
826 if (r < 0)
418b9be5
LP		 827 return log_oom();
828
829 break;
830
ed457f13
TB		 831 case ARG_KEYMAP:
832 if (!keymap_is_valid(optarg)) {
833 log_error("Keymap %s is not valid.", optarg);
834 return -EINVAL;
835 }
836
837 r = free_and_strdup(&arg_keymap, optarg);
838 if (r < 0)
839 return log_oom();
840
841 break;
842
418b9be5 843 case ARG_TIMEZONE:
089fb865 844 if (!timezone_is_valid(optarg, LOG_ERR)) {
418b9be5
LP		 845 log_error("Timezone %s is not valid.", optarg);
846 return -EINVAL;
847 }
848
2fc09a9c
DM		 849 r = free_and_strdup(&arg_timezone, optarg);
850 if (r < 0)
418b9be5
LP		 851 return log_oom();
852
853 break;
854
855 case ARG_ROOT_PASSWORD:
2fc09a9c
DM		 856 r = free_and_strdup(&arg_root_password, optarg);
857 if (r < 0)
418b9be5 858 return log_oom();
418b9be5
LP		 859 break;
860
861 case ARG_ROOT_PASSWORD_FILE:
0da16248 862 arg_root_password = mfree(arg_root_password);
418b9be5
LP		 863
864 r = read_one_line_file(optarg, &arg_root_password);
23bbb0de
MS		 865 if (r < 0)
866 return log_error_errno(r, "Failed to read %s: %m", optarg);
418b9be5
LP		 867
868 break;
869
870 case ARG_HOSTNAME:
34ad6090 871 if (!hostname_is_valid(optarg, true)) {
418b9be5
LP		 872 log_error("Host name %s is not valid.", optarg);
873 return -EINVAL;
874 }
875
ae691c1d 876 hostname_cleanup(optarg);
2fc09a9c
DM		 877 r = free_and_strdup(&arg_hostname, optarg);
878 if (r < 0)
418b9be5
LP		 879 return log_oom();
880
881 break;
882
883 case ARG_MACHINE_ID:
884 if (sd_id128_from_string(optarg, &arg_machine_id) < 0) {
885 log_error("Failed to parse machine id %s.", optarg);
886 return -EINVAL;
887 }
888
889 break;
890
891 case ARG_PROMPT:
ed457f13 892 arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
418b9be5
LP		 893 break;
894
895 case ARG_PROMPT_LOCALE:
896 arg_prompt_locale = true;
897 break;
898
ed457f13
TB		 899 case ARG_PROMPT_KEYMAP:
900 arg_prompt_keymap = true;
901 break;
902
418b9be5
LP		 903 case ARG_PROMPT_TIMEZONE:
904 arg_prompt_timezone = true;
905 break;
906
907 case ARG_PROMPT_HOSTNAME:
908 arg_prompt_hostname = true;
909 break;
910
911 case ARG_PROMPT_ROOT_PASSWORD:
912 arg_prompt_root_password = true;
913 break;
914
915 case ARG_COPY:
ed457f13 916 arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
e926f647 917 break;
418b9be5
LP		 918
919 case ARG_COPY_LOCALE:
920 arg_copy_locale = true;
921 break;
922
ed457f13
TB		 923 case ARG_COPY_KEYMAP:
924 arg_copy_keymap = true;
925 break;
926
418b9be5
LP		 927 case ARG_COPY_TIMEZONE:
928 arg_copy_timezone = true;
929 break;
930
931 case ARG_COPY_ROOT_PASSWORD:
932 arg_copy_root_password = true;
933 break;
934
935 case ARG_SETUP_MACHINE_ID:
936
937 r = sd_id128_randomize(&arg_machine_id);
23bbb0de
MS		 938 if (r < 0)
939 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
418b9be5
LP		 940
941 break;
942
943 case '?':
944 return -EINVAL;
945
946 default:
947 assert_not_reached("Unhandled option");
948 }
418b9be5
LP		 949
950 return 1;
951}
952
45f39418 953static int run(int argc, char *argv[]) {
1d84ad94 954 bool enabled;
418b9be5
LP		 955 int r;
956
957 r = parse_argv(argc, argv);
958 if (r <= 0)
45f39418 959 return r;
418b9be5 960
6bf3c61c 961 log_setup_service();
418b9be5
LP		 962
963 umask(0022);
964
1d84ad94 965 r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
45f39418
YW		 966 if (r < 0)
967 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
968 if (r > 0 && !enabled)
969 return 0; /* disabled */
f582cbca 970
418b9be5
LP		 971 r = process_locale();
972 if (r < 0)
45f39418 973 return r;
418b9be5 974
ed457f13
TB		 975 r = process_keymap();
976 if (r < 0)
45f39418 977 return r;
ed457f13 978
418b9be5
LP		 979 r = process_timezone();
980 if (r < 0)
45f39418 981 return r;
418b9be5
LP		 982
983 r = process_hostname();
984 if (r < 0)
45f39418 985 return r;
418b9be5
LP		 986
987 r = process_machine_id();
988 if (r < 0)
45f39418 989 return r;
418b9be5
LP		 990
991 r = process_root_password();
992 if (r < 0)
45f39418
YW		 993 return r;
994
995 return 0;
418b9be5 996}
45f39418
YW		 997
998DEFINE_MAIN_FUNCTION(run);
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