src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <fcntl.h>
   4 #include <getopt.h>
   5 #include <unistd.h>
   6
   7 #if HAVE_CRYPT_H
   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
  20 #include "sd-id128.h"
  21
  22 #include "alloc-util.h"
  23 #include "ask-password-api.h"
  24 #include "copy.h"
  25 #include "env-file.h"
  26 #include "fd-util.h"
  27 #include "fileio.h"
  28 #include "fs-util.h"
  29 #include "hostname-util.h"
  30 #include "kbd-util.h"
  31 #include "locale-util.h"
  32 #include "main-func.h"
  33 #include "memory-util.h"
  34 #include "mkdir.h"
  35 #include "os-util.h"
  36 #include "parse-util.h"
  37 #include "path-util.h"
  38 #include "pretty-print.h"
  39 #include "proc-cmdline.h"
  40 #include "random-util.h"
  41 #include "string-util.h"
  42 #include "strv.h"
  43 #include "terminal-util.h"
  44 #include "time-util.h"
  45 #include "umask-util.h"
  46 #include "user-util.h"
  47
  48 static char *arg_root = NULL;
  49 static char *arg_locale = NULL;  /* $LANG */
  50 static char *arg_keymap = NULL;
  51 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  52 static char *arg_timezone = NULL;
  53 static char *arg_hostname = NULL;
  54 static sd_id128_t arg_machine_id = {};
  55 static char *arg_root_password = NULL;
  56 static bool arg_prompt_locale = false;
  57 static bool arg_prompt_keymap = false;
  58 static bool arg_prompt_timezone = false;
  59 static bool arg_prompt_hostname = false;
  60 static bool arg_prompt_root_password = false;
  61 static bool arg_copy_locale = false;
  62 static bool arg_copy_keymap = false;
  63 static bool arg_copy_timezone = false;
  64 static bool arg_copy_root_password = false;
  65
  66 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
  67 STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
  68 STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
  69 STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
  70 STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
  71 STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
  72 STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
  73
  74 static bool press_any_key(void) {
  75         char k = 0;
  76         bool need_nl = true;
  77
  78         printf("-- Press any key to proceed --");
  79         fflush(stdout);
  80
  81         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  82
  83         if (need_nl)
  84                 putchar('\n');
  85
  86         return k != 'q';
  87 }
  88
  89 static void print_welcome(void) {
  90         _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
  91         static bool done = false;
  92         const char *pn;
  93         int r;
  94
  95         if (done)
  96                 return;
  97
  98         r = parse_os_release(
  99                         arg_root,
 100                         "PRETTY_NAME", &pretty_name,
 101                         "ANSI_COLOR", &ansi_color,
 102                         NULL);
 103         if (r < 0)
 104                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
 105                                "Failed to read os-release file, ignoring: %m");
 106
 107         pn = isempty(pretty_name) ? "Linux" : pretty_name;
 108
 109         if (colors_enabled())
 110                 printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ansi_color, pn);
 111         else
 112                 printf("\nWelcome to your new installation of %s!\n", pn);
 113
 114         printf("\nPlease configure your system!\n\n");
 115
 116         press_any_key();
 117
 118         done = true;
 119 }
 120
 121 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 122         unsigned break_lines, break_modulo;
 123         size_t n, per_column, i, j;
 124
 125         assert(n_columns > 0);
 126
 127         n = strv_length(x);
 128         per_column = DIV_ROUND_UP(n, n_columns);
 129
 130         break_lines = lines();
 131         if (break_lines > 2)
 132                 break_lines--;
 133
 134         /* The first page gets two extra lines, since we want to show
 135          * a title */
 136         break_modulo = break_lines;
 137         if (break_modulo > 3)
 138                 break_modulo -= 3;
 139
 140         for (i = 0; i < per_column; i++) {
 141
 142                 for (j = 0; j < n_columns; j ++) {
 143                         _cleanup_free_ char *e = NULL;
 144
 145                         if (j * per_column + i >= n)
 146                                 break;
 147
 148                         e = ellipsize(x[j * per_column + i], width, percentage);
 149                         if (!e)
 150                                 return log_oom();
 151
 152                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 153                 }
 154
 155                 putchar('\n');
 156
 157                 /* on the first screen we reserve 2 extra lines for the title */
 158                 if (i % break_lines == break_modulo) {
 159                         if (!press_any_key())
 160                                 return 0;
 161                 }
 162         }
 163
 164         return 0;
 165 }
 166
 167 static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
 168         int r;
 169
 170         assert(text);
 171         assert(is_valid);
 172         assert(ret);
 173
 174         for (;;) {
 175                 _cleanup_free_ char *p = NULL;
 176                 unsigned u;
 177
 178                 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 179                 if (r < 0)
 180                         return log_error_errno(r, "Failed to query user: %m");
 181
 182                 if (isempty(p)) {
 183                         log_warning("No data entered, skipping.");
 184                         return 0;
 185                 }
 186
 187                 r = safe_atou(p, &u);
 188                 if (r >= 0) {
 189                         char *c;
 190
 191                         if (u <= 0 || u > strv_length(l)) {
 192                                 log_error("Specified entry number out of range.");
 193                                 continue;
 194                         }
 195
 196                         log_info("Selected '%s'.", l[u-1]);
 197
 198                         c = strdup(l[u-1]);
 199                         if (!c)
 200                                 return log_oom();
 201
 202                         free(*ret);
 203                         *ret = c;
 204                         return 0;
 205                 }
 206
 207                 if (!is_valid(p)) {
 208                         log_error("Entered data invalid.");
 209                         continue;
 210                 }
 211
 212                 free(*ret);
 213                 *ret = p;
 214                 p = 0;
 215                 return 0;
 216         }
 217 }
 218
 219 static int prompt_locale(void) {
 220         _cleanup_strv_free_ char **locales = NULL;
 221         int r;
 222
 223         if (arg_locale || arg_locale_messages)
 224                 return 0;
 225
 226         if (!arg_prompt_locale)
 227                 return 0;
 228
 229         r = get_locales(&locales);
 230         if (r < 0)
 231                 return log_error_errno(r, "Cannot query locales list: %m");
 232
 233         if (strv_isempty(locales))
 234                 log_debug("No locales found, skipping locale selection.");
 235         else if (strv_length(locales) == 1) {
 236
 237                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 238                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 239                 else {
 240                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 241
 242                         arg_locale = strdup(locales[0]);
 243                         if (!arg_locale)
 244                                 return log_oom();
 245
 246                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 247                 }
 248         } else {
 249                 print_welcome();
 250
 251                 printf("\nAvailable Locales:\n\n");
 252                 r = show_menu(locales, 3, 22, 60);
 253                 if (r < 0)
 254                         return r;
 255
 256                 putchar('\n');
 257
 258                 r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale);
 259                 if (r < 0)
 260                         return r;
 261
 262                 if (isempty(arg_locale))
 263                         return 0;
 264
 265                 r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages);
 266                 if (r < 0)
 267                         return r;
 268
 269                 /* Suppress the messages setting if it's the same as the main locale anyway */
 270                 if (streq_ptr(arg_locale, arg_locale_messages))
 271                         arg_locale_messages = mfree(arg_locale_messages);
 272         }
 273
 274         return 0;
 275 }
 276
 277 static int process_locale(void) {
 278         const char *etc_localeconf;
 279         char* locales[3];
 280         unsigned i = 0;
 281         int r;
 282
 283         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 284         if (laccess(etc_localeconf, F_OK) >= 0)
 285                 return 0;
 286
 287         if (arg_copy_locale && arg_root) {
 288
 289                 (void) mkdir_parents(etc_localeconf, 0755);
 290                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 291                 if (r != -ENOENT) {
 292                         if (r < 0)
 293                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 294
 295                         log_info("%s copied.", etc_localeconf);
 296                         return 0;
 297                 }
 298         }
 299
 300         r = prompt_locale();
 301         if (r < 0)
 302                 return r;
 303
 304         if (!isempty(arg_locale))
 305                 locales[i++] = strjoina("LANG=", arg_locale);
 306         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 307                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 308
 309         if (i == 0)
 310                 return 0;
 311
 312         locales[i] = NULL;
 313
 314         (void) mkdir_parents(etc_localeconf, 0755);
 315         r = write_env_file(etc_localeconf, locales);
 316         if (r < 0)
 317                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 318
 319         log_info("%s written.", etc_localeconf);
 320         return 0;
 321 }
 322
 323 static int prompt_keymap(void) {
 324         _cleanup_strv_free_ char **kmaps = NULL;
 325         int r;
 326
 327         if (arg_keymap)
 328                 return 0;
 329
 330         if (!arg_prompt_keymap)
 331                 return 0;
 332
 333         r = get_keymaps(&kmaps);
 334         if (r == -ENOENT) /* no keymaps installed */
 335                 return r;
 336         if (r < 0)
 337                 return log_error_errno(r, "Failed to read keymaps: %m");
 338
 339         print_welcome();
 340
 341         printf("\nAvailable keymaps:\n\n");
 342         r = show_menu(kmaps, 3, 22, 60);
 343         if (r < 0)
 344                 return r;
 345
 346         putchar('\n');
 347
 348         return prompt_loop("Please enter system keymap name or number",
 349                            kmaps, keymap_is_valid, &arg_keymap);
 350 }
 351
 352 static int process_keymap(void) {
 353         const char *etc_vconsoleconf;
 354         char **keymap;
 355         int r;
 356
 357         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 358         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 359                 return 0;
 360
 361         if (arg_copy_keymap && arg_root) {
 362
 363                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 364                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 365                 if (r != -ENOENT) {
 366                         if (r < 0)
 367                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 368
 369                         log_info("%s copied.", etc_vconsoleconf);
 370                         return 0;
 371                 }
 372         }
 373
 374         r = prompt_keymap();
 375         if (r == -ENOENT)
 376                 return 0; /* don't fail if no keymaps are installed */
 377         if (r < 0)
 378                 return r;
 379
 380         if (isempty(arg_keymap))
 381                 return 0;
 382
 383         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 384
 385         r = mkdir_parents(etc_vconsoleconf, 0755);
 386         if (r < 0)
 387                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 388
 389         r = write_env_file(etc_vconsoleconf, keymap);
 390         if (r < 0)
 391                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 392
 393         log_info("%s written.", etc_vconsoleconf);
 394         return 0;
 395 }
 396
 397 static bool timezone_is_valid_log_error(const char *name) {
 398         return timezone_is_valid(name, LOG_ERR);
 399 }
 400
 401 static int prompt_timezone(void) {
 402         _cleanup_strv_free_ char **zones = NULL;
 403         int r;
 404
 405         if (arg_timezone)
 406                 return 0;
 407
 408         if (!arg_prompt_timezone)
 409                 return 0;
 410
 411         r = get_timezones(&zones);
 412         if (r < 0)
 413                 return log_error_errno(r, "Cannot query timezone list: %m");
 414
 415         print_welcome();
 416
 417         printf("\nAvailable Time Zones:\n\n");
 418         r = show_menu(zones, 3, 22, 30);
 419         if (r < 0)
 420                 return r;
 421
 422         putchar('\n');
 423
 424         r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
 425         if (r < 0)
 426                 return r;
 427
 428         return 0;
 429 }
 430
 431 static int process_timezone(void) {
 432         const char *etc_localtime, *e;
 433         int r;
 434
 435         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 436         if (laccess(etc_localtime, F_OK) >= 0)
 437                 return 0;
 438
 439         if (arg_copy_timezone && arg_root) {
 440                 _cleanup_free_ char *p = NULL;
 441
 442                 r = readlink_malloc("/etc/localtime", &p);
 443                 if (r != -ENOENT) {
 444                         if (r < 0)
 445                                 return log_error_errno(r, "Failed to read host timezone: %m");
 446
 447                         (void) mkdir_parents(etc_localtime, 0755);
 448                         if (symlink(p, etc_localtime) < 0)
 449                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 450
 451                         log_info("%s copied.", etc_localtime);
 452                         return 0;
 453                 }
 454         }
 455
 456         r = prompt_timezone();
 457         if (r < 0)
 458                 return r;
 459
 460         if (isempty(arg_timezone))
 461                 return 0;
 462
 463         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 464
 465         (void) mkdir_parents(etc_localtime, 0755);
 466         if (symlink(e, etc_localtime) < 0)
 467                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 468
 469         log_info("%s written", etc_localtime);
 470         return 0;
 471 }
 472
 473 static int prompt_hostname(void) {
 474         int r;
 475
 476         if (arg_hostname)
 477                 return 0;
 478
 479         if (!arg_prompt_hostname)
 480                 return 0;
 481
 482         print_welcome();
 483         putchar('\n');
 484
 485         for (;;) {
 486                 _cleanup_free_ char *h = NULL;
 487
 488                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 489                 if (r < 0)
 490                         return log_error_errno(r, "Failed to query hostname: %m");
 491
 492                 if (isempty(h)) {
 493                         log_warning("No hostname entered, skipping.");
 494                         break;
 495                 }
 496
 497                 if (!hostname_is_valid(h, true)) {
 498                         log_error("Specified hostname invalid.");
 499                         continue;
 500                 }
 501
 502                 /* Get rid of the trailing dot that we allow, but don't want to see */
 503                 arg_hostname = hostname_cleanup(h);
 504                 h = NULL;
 505                 break;
 506         }
 507
 508         return 0;
 509 }
 510
 511 static int process_hostname(void) {
 512         const char *etc_hostname;
 513         int r;
 514
 515         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 516         if (laccess(etc_hostname, F_OK) >= 0)
 517                 return 0;
 518
 519         r = prompt_hostname();
 520         if (r < 0)
 521                 return r;
 522
 523         if (isempty(arg_hostname))
 524                 return 0;
 525
 526         r = write_string_file(etc_hostname, arg_hostname,
 527                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 528         if (r < 0)
 529                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 530
 531         log_info("%s written.", etc_hostname);
 532         return 0;
 533 }
 534
 535 static int process_machine_id(void) {
 536         const char *etc_machine_id;
 537         char id[SD_ID128_STRING_MAX];
 538         int r;
 539
 540         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 541         if (laccess(etc_machine_id, F_OK) >= 0)
 542                 return 0;
 543
 544         if (sd_id128_is_null(arg_machine_id))
 545                 return 0;
 546
 547         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 548                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 549         if (r < 0)
 550                 return log_error_errno(r, "Failed to write machine id: %m");
 551
 552         log_info("%s written.", etc_machine_id);
 553         return 0;
 554 }
 555
 556 static int prompt_root_password(void) {
 557         const char *msg1, *msg2, *etc_shadow;
 558         int r;
 559
 560         if (arg_root_password)
 561                 return 0;
 562
 563         if (!arg_prompt_root_password)
 564                 return 0;
 565
 566         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 567         if (laccess(etc_shadow, F_OK) >= 0)
 568                 return 0;
 569
 570         print_welcome();
 571         putchar('\n');
 572
 573         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 574         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again: ");
 575
 576         for (;;) {
 577                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 578
 579                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 580                 if (r < 0)
 581                         return log_error_errno(r, "Failed to query root password: %m");
 582                 if (strv_length(a) != 1) {
 583                         log_warning("Received multiple passwords, where we expected one.");
 584                         return -EINVAL;
 585                 }
 586
 587                 if (isempty(*a)) {
 588                         log_warning("No password entered, skipping.");
 589                         break;
 590                 }
 591
 592                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 593                 if (r < 0)
 594                         return log_error_errno(r, "Failed to query root password: %m");
 595
 596                 if (!streq(*a, *b)) {
 597                         log_error("Entered passwords did not match, please try again.");
 598                         continue;
 599                 }
 600
 601                 arg_root_password = TAKE_PTR(*a);
 602                 break;
 603         }
 604
 605         return 0;
 606 }
 607
 608 static int write_root_shadow(const char *path, const struct spwd *p) {
 609         _cleanup_fclose_ FILE *f = NULL;
 610         int r;
 611
 612         assert(path);
 613         assert(p);
 614
 615         RUN_WITH_UMASK(0777)
 616                 f = fopen(path, "wex");
 617         if (!f)
 618                 return -errno;
 619
 620         r = putspent_sane(p, f);
 621         if (r < 0)
 622                 return r;
 623
 624         return fflush_sync_and_check(f);
 625 }
 626
 627 static int process_root_password(void) {
 628
 629         struct spwd item = {
 630                 .sp_namp = (char*) "root",
 631                 .sp_min = -1,
 632                 .sp_max = -1,
 633                 .sp_warn = -1,
 634                 .sp_inact = -1,
 635                 .sp_expire = -1,
 636                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 637         };
 638         _cleanup_free_ char *salt = NULL;
 639         _cleanup_close_ int lock = -1;
 640         struct crypt_data cd = {};
 641
 642         const char *etc_shadow;
 643         int r;
 644
 645         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 646         if (laccess(etc_shadow, F_OK) >= 0)
 647                 return 0;
 648
 649         (void) mkdir_parents(etc_shadow, 0755);
 650
 651         lock = take_etc_passwd_lock(arg_root);
 652         if (lock < 0)
 653                 return log_error_errno(lock, "Failed to take a lock: %m");
 654
 655         if (arg_copy_root_password && arg_root) {
 656                 struct spwd *p;
 657
 658                 errno = 0;
 659                 p = getspnam("root");
 660                 if (p || errno != ENOENT) {
 661                         if (!p) {
 662                                 if (!errno)
 663                                         errno = EIO;
 664
 665                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 666                         }
 667
 668                         r = write_root_shadow(etc_shadow, p);
 669                         if (r < 0)
 670                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 671
 672                         log_info("%s copied.", etc_shadow);
 673                         return 0;
 674                 }
 675         }
 676
 677         r = prompt_root_password();
 678         if (r < 0)
 679                 return r;
 680
 681         if (!arg_root_password)
 682                 return 0;
 683
 684         r = make_salt(&salt);
 685         if (r < 0)
 686                 return log_error_errno(r, "Failed to get salt: %m");
 687
 688         errno = 0;
 689         item.sp_pwdp = crypt_r(arg_root_password, salt, &cd);
 690         if (!item.sp_pwdp)
 691                 return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
 692                                        "Failed to encrypt password: %m");
 693
 694         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 695
 696         r = write_root_shadow(etc_shadow, &item);
 697         if (r < 0)
 698                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 699
 700         log_info("%s written.", etc_shadow);
 701         return 0;
 702 }
 703
 704 static int help(void) {
 705         _cleanup_free_ char *link = NULL;
 706         int r;
 707
 708         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 709         if (r < 0)
 710                 return log_oom();
 711
 712         printf("%s [OPTIONS...]\n\n"
 713                "Configures basic settings of the system.\n\n"
 714                "  -h --help                    Show this help\n"
 715                "     --version                 Show package version\n"
 716                "     --root=PATH               Operate on an alternate filesystem root\n"
 717                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 718                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 719                "     --keymap=KEYMAP           Set keymap\n"
 720                "     --timezone=TIMEZONE       Set timezone\n"
 721                "     --hostname=NAME           Set host name\n"
 722                "     --machine-ID=ID           Set machine ID\n"
 723                "     --root-password=PASSWORD  Set root password\n"
 724                "     --root-password-file=FILE Set root password from file\n"
 725                "     --prompt-locale           Prompt the user for locale settings\n"
 726                "     --prompt-keymap           Prompt the user for keymap settings\n"
 727                "     --prompt-timezone         Prompt the user for timezone\n"
 728                "     --prompt-hostname         Prompt the user for hostname\n"
 729                "     --prompt-root-password    Prompt the user for root password\n"
 730                "     --prompt                  Prompt for all of the above\n"
 731                "     --copy-locale             Copy locale from host\n"
 732                "     --copy-keymap             Copy keymap from host\n"
 733                "     --copy-timezone           Copy timezone from host\n"
 734                "     --copy-root-password      Copy root password from host\n"
 735                "     --copy                    Copy locale, keymap, timezone, root password\n"
 736                "     --setup-machine-id        Generate a new random machine ID\n"
 737                "\nSee the %s for details.\n"
 738                , program_invocation_short_name
 739                , link
 740         );
 741
 742         return 0;
 743 }
 744
 745 static int parse_argv(int argc, char *argv[]) {
 746
 747         enum {
 748                 ARG_VERSION = 0x100,
 749                 ARG_ROOT,
 750                 ARG_LOCALE,
 751                 ARG_LOCALE_MESSAGES,
 752                 ARG_KEYMAP,
 753                 ARG_TIMEZONE,
 754                 ARG_HOSTNAME,
 755                 ARG_MACHINE_ID,
 756                 ARG_ROOT_PASSWORD,
 757                 ARG_ROOT_PASSWORD_FILE,
 758                 ARG_PROMPT,
 759                 ARG_PROMPT_LOCALE,
 760                 ARG_PROMPT_KEYMAP,
 761                 ARG_PROMPT_TIMEZONE,
 762                 ARG_PROMPT_HOSTNAME,
 763                 ARG_PROMPT_ROOT_PASSWORD,
 764                 ARG_COPY,
 765                 ARG_COPY_LOCALE,
 766                 ARG_COPY_KEYMAP,
 767                 ARG_COPY_TIMEZONE,
 768                 ARG_COPY_ROOT_PASSWORD,
 769                 ARG_SETUP_MACHINE_ID,
 770         };
 771
 772         static const struct option options[] = {
 773                 { "help",                 no_argument,       NULL, 'h'                      },
 774                 { "version",              no_argument,       NULL, ARG_VERSION              },
 775                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 776                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 777                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 778                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 779                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 780                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 781                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 782                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 783                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 784                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 785                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 786                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 787                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 788                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 789                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 790                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 791                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 792                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 793                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 794                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 795                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 796                 {}
 797         };
 798
 799         int r, c;
 800
 801         assert(argc >= 0);
 802         assert(argv);
 803
 804         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 805
 806                 switch (c) {
 807
 808                 case 'h':
 809                         return help();
 810
 811                 case ARG_VERSION:
 812                         return version();
 813
 814                 case ARG_ROOT:
 815                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 816                         if (r < 0)
 817                                 return r;
 818                         break;
 819
 820                 case ARG_LOCALE:
 821                         if (!locale_is_valid(optarg))
 822                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 823                                                        "Locale %s is not valid.", optarg);
 824
 825                         r = free_and_strdup(&arg_locale, optarg);
 826                         if (r < 0)
 827                                 return log_oom();
 828
 829                         break;
 830
 831                 case ARG_LOCALE_MESSAGES:
 832                         if (!locale_is_valid(optarg))
 833                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 834                                                        "Locale %s is not valid.", optarg);
 835
 836                         r = free_and_strdup(&arg_locale_messages, optarg);
 837                         if (r < 0)
 838                                 return log_oom();
 839
 840                         break;
 841
 842                 case ARG_KEYMAP:
 843                         if (!keymap_is_valid(optarg))
 844                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 845                                                        "Keymap %s is not valid.", optarg);
 846
 847                         r = free_and_strdup(&arg_keymap, optarg);
 848                         if (r < 0)
 849                                 return log_oom();
 850
 851                         break;
 852
 853                 case ARG_TIMEZONE:
 854                         if (!timezone_is_valid(optarg, LOG_ERR))
 855                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 856                                                        "Timezone %s is not valid.", optarg);
 857
 858                         r = free_and_strdup(&arg_timezone, optarg);
 859                         if (r < 0)
 860                                 return log_oom();
 861
 862                         break;
 863
 864                 case ARG_ROOT_PASSWORD:
 865                         r = free_and_strdup(&arg_root_password, optarg);
 866                         if (r < 0)
 867                                 return log_oom();
 868                         break;
 869
 870                 case ARG_ROOT_PASSWORD_FILE:
 871                         arg_root_password = mfree(arg_root_password);
 872
 873                         r = read_one_line_file(optarg, &arg_root_password);
 874                         if (r < 0)
 875                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 876
 877                         break;
 878
 879                 case ARG_HOSTNAME:
 880                         if (!hostname_is_valid(optarg, true))
 881                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 882                                                        "Host name %s is not valid.", optarg);
 883
 884                         hostname_cleanup(optarg);
 885                         r = free_and_strdup(&arg_hostname, optarg);
 886                         if (r < 0)
 887                                 return log_oom();
 888
 889                         break;
 890
 891                 case ARG_MACHINE_ID:
 892                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
 893                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 894                                                        "Failed to parse machine id %s.", optarg);
 895
 896                         break;
 897
 898                 case ARG_PROMPT:
 899                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
 900                         break;
 901
 902                 case ARG_PROMPT_LOCALE:
 903                         arg_prompt_locale = true;
 904                         break;
 905
 906                 case ARG_PROMPT_KEYMAP:
 907                         arg_prompt_keymap = true;
 908                         break;
 909
 910                 case ARG_PROMPT_TIMEZONE:
 911                         arg_prompt_timezone = true;
 912                         break;
 913
 914                 case ARG_PROMPT_HOSTNAME:
 915                         arg_prompt_hostname = true;
 916                         break;
 917
 918                 case ARG_PROMPT_ROOT_PASSWORD:
 919                         arg_prompt_root_password = true;
 920                         break;
 921
 922                 case ARG_COPY:
 923                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
 924                         break;
 925
 926                 case ARG_COPY_LOCALE:
 927                         arg_copy_locale = true;
 928                         break;
 929
 930                 case ARG_COPY_KEYMAP:
 931                         arg_copy_keymap = true;
 932                         break;
 933
 934                 case ARG_COPY_TIMEZONE:
 935                         arg_copy_timezone = true;
 936                         break;
 937
 938                 case ARG_COPY_ROOT_PASSWORD:
 939                         arg_copy_root_password = true;
 940                         break;
 941
 942                 case ARG_SETUP_MACHINE_ID:
 943
 944                         r = sd_id128_randomize(&arg_machine_id);
 945                         if (r < 0)
 946                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
 947
 948                         break;
 949
 950                 case '?':
 951                         return -EINVAL;
 952
 953                 default:
 954                         assert_not_reached("Unhandled option");
 955                 }
 956
 957         return 1;
 958 }
 959
 960 static int run(int argc, char *argv[]) {
 961         bool enabled;
 962         int r;
 963
 964         r = parse_argv(argc, argv);
 965         if (r <= 0)
 966                 return r;
 967
 968         log_setup_service();
 969
 970         umask(0022);
 971
 972         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 973         if (r < 0)
 974                 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
 975         if (r > 0 && !enabled)
 976                 return 0; /* disabled */
 977
 978         r = process_locale();
 979         if (r < 0)
 980                 return r;
 981
 982         r = process_keymap();
 983         if (r < 0)
 984                 return r;
 985
 986         r = process_timezone();
 987         if (r < 0)
 988                 return r;
 989
 990         r = process_hostname();
 991         if (r < 0)
 992                 return r;
 993
 994         r = process_machine_id();
 995         if (r < 0)
 996                 return r;
 997
 998         r = process_root_password();
 999         if (r < 0)
1000                 return r;
1001
1002         return 0;
1003 }
1004
1005 DEFINE_MAIN_FUNCTION(run);