src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2014 Lennart Poettering
   6 ***/
   7
   8 #include <fcntl.h>
   9 #include <getopt.h>
  10 #include <unistd.h>
  11
  12 #ifdef HAVE_CRYPT_H
  13 /* libxcrypt is a replacement for glibc's libcrypt, and libcrypt might be
  14  * removed from glibc at some point. As part of the removal, defines for
  15  * crypt(3) are dropped from unistd.h, and we must include crypt.h instead.
  16  *
  17  * Newer versions of glibc (v2.0+) already ship crypt.h with a definition
  18  * of crypt(3) as well, so we simply include it if it is present.  MariaDB,
  19  * MySQL, PostgreSQL, Perl and some other wide-spread packages do it the
  20  * same way since ages without any problems.
  21  */
  22 #  include <crypt.h>
  23 #endif
  24
  25 #include "sd-id128.h"
  26
  27 #include "alloc-util.h"
  28 #include "ask-password-api.h"
  29 #include "copy.h"
  30 #include "fd-util.h"
  31 #include "fileio.h"
  32 #include "fs-util.h"
  33 #include "hostname-util.h"
  34 #include "locale-util.h"
  35 #include "mkdir.h"
  36 #include "parse-util.h"
  37 #include "path-util.h"
  38 #include "proc-cmdline.h"
  39 #include "random-util.h"
  40 #include "string-util.h"
  41 #include "strv.h"
  42 #include "terminal-util.h"
  43 #include "time-util.h"
  44 #include "umask-util.h"
  45 #include "user-util.h"
  46
  47 static char *arg_root = NULL;
  48 static char *arg_locale = NULL;  /* $LANG */
  49 static char *arg_keymap = NULL;
  50 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  51 static char *arg_timezone = NULL;
  52 static char *arg_hostname = NULL;
  53 static sd_id128_t arg_machine_id = {};
  54 static char *arg_root_password = NULL;
  55 static bool arg_prompt_locale = false;
  56 static bool arg_prompt_keymap = false;
  57 static bool arg_prompt_timezone = false;
  58 static bool arg_prompt_hostname = false;
  59 static bool arg_prompt_root_password = false;
  60 static bool arg_copy_locale = false;
  61 static bool arg_copy_keymap = false;
  62 static bool arg_copy_timezone = false;
  63 static bool arg_copy_root_password = false;
  64
  65 static bool press_any_key(void) {
  66         char k = 0;
  67         bool need_nl = true;
  68
  69         printf("-- Press any key to proceed --");
  70         fflush(stdout);
  71
  72         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  73
  74         if (need_nl)
  75                 putchar('\n');
  76
  77         return k != 'q';
  78 }
  79
  80 static void print_welcome(void) {
  81         _cleanup_free_ char *pretty_name = NULL;
  82         const char *os_release = NULL;
  83         static bool done = false;
  84         int r;
  85
  86         if (done)
  87                 return;
  88
  89         os_release = prefix_roota(arg_root, "/etc/os-release");
  90         r = parse_env_file(os_release, NEWLINE,
  91                            "PRETTY_NAME", &pretty_name,
  92                            NULL);
  93         if (r == -ENOENT) {
  94
  95                 os_release = prefix_roota(arg_root, "/usr/lib/os-release");
  96                 r = parse_env_file(os_release, NEWLINE,
  97                                    "PRETTY_NAME", &pretty_name,
  98                                    NULL);
  99         }
 100
 101         if (r < 0 && r != -ENOENT)
 102                 log_warning_errno(r, "Failed to read os-release file: %m");
 103
 104         printf("\nWelcome to your new installation of %s!\nPlease configure a few basic system settings:\n\n",
 105                isempty(pretty_name) ? "Linux" : pretty_name);
 106
 107         press_any_key();
 108
 109         done = true;
 110 }
 111
 112 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 113         unsigned break_lines, break_modulo;
 114         size_t n, per_column, i, j;
 115
 116         assert(n_columns > 0);
 117
 118         n = strv_length(x);
 119         per_column = DIV_ROUND_UP(n, n_columns);
 120
 121         break_lines = lines();
 122         if (break_lines > 2)
 123                 break_lines--;
 124
 125         /* The first page gets two extra lines, since we want to show
 126          * a title */
 127         break_modulo = break_lines;
 128         if (break_modulo > 3)
 129                 break_modulo -= 3;
 130
 131         for (i = 0; i < per_column; i++) {
 132
 133                 for (j = 0; j < n_columns; j ++) {
 134                         _cleanup_free_ char *e = NULL;
 135
 136                         if (j * per_column + i >= n)
 137                                 break;
 138
 139                         e = ellipsize(x[j * per_column + i], width, percentage);
 140                         if (!e)
 141                                 return log_oom();
 142
 143                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 144                 }
 145
 146                 putchar('\n');
 147
 148                 /* on the first screen we reserve 2 extra lines for the title */
 149                 if (i % break_lines == break_modulo) {
 150                         if (!press_any_key())
 151                                 return 0;
 152                 }
 153         }
 154
 155         return 0;
 156 }
 157
 158 static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
 159         int r;
 160
 161         assert(text);
 162         assert(is_valid);
 163         assert(ret);
 164
 165         for (;;) {
 166                 _cleanup_free_ char *p = NULL;
 167                 unsigned u;
 168
 169                 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(TRIANGULAR_BULLET), text);
 170                 if (r < 0)
 171                         return log_error_errno(r, "Failed to query user: %m");
 172
 173                 if (isempty(p)) {
 174                         log_warning("No data entered, skipping.");
 175                         return 0;
 176                 }
 177
 178                 r = safe_atou(p, &u);
 179                 if (r >= 0) {
 180                         char *c;
 181
 182                         if (u <= 0 || u > strv_length(l)) {
 183                                 log_error("Specified entry number out of range.");
 184                                 continue;
 185                         }
 186
 187                         log_info("Selected '%s'.", l[u-1]);
 188
 189                         c = strdup(l[u-1]);
 190                         if (!c)
 191                                 return log_oom();
 192
 193                         free(*ret);
 194                         *ret = c;
 195                         return 0;
 196                 }
 197
 198                 if (!is_valid(p)) {
 199                         log_error("Entered data invalid.");
 200                         continue;
 201                 }
 202
 203                 free(*ret);
 204                 *ret = p;
 205                 p = 0;
 206                 return 0;
 207         }
 208 }
 209
 210 static int prompt_locale(void) {
 211         _cleanup_strv_free_ char **locales = NULL;
 212         int r;
 213
 214         if (arg_locale || arg_locale_messages)
 215                 return 0;
 216
 217         if (!arg_prompt_locale)
 218                 return 0;
 219
 220         r = get_locales(&locales);
 221         if (r < 0)
 222                 return log_error_errno(r, "Cannot query locales list: %m");
 223
 224         print_welcome();
 225
 226         printf("\nAvailable Locales:\n\n");
 227         r = show_menu(locales, 3, 22, 60);
 228         if (r < 0)
 229                 return r;
 230
 231         putchar('\n');
 232
 233         r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale);
 234         if (r < 0)
 235                 return r;
 236
 237         if (isempty(arg_locale))
 238                 return 0;
 239
 240         r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages);
 241         if (r < 0)
 242                 return r;
 243
 244         return 0;
 245 }
 246
 247 static int process_locale(void) {
 248         const char *etc_localeconf;
 249         char* locales[3];
 250         unsigned i = 0;
 251         int r;
 252
 253         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 254         if (laccess(etc_localeconf, F_OK) >= 0)
 255                 return 0;
 256
 257         if (arg_copy_locale && arg_root) {
 258
 259                 mkdir_parents(etc_localeconf, 0755);
 260                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, COPY_REFLINK);
 261                 if (r != -ENOENT) {
 262                         if (r < 0)
 263                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 264
 265                         log_info("%s copied.", etc_localeconf);
 266                         return 0;
 267                 }
 268         }
 269
 270         r = prompt_locale();
 271         if (r < 0)
 272                 return r;
 273
 274         if (!isempty(arg_locale))
 275                 locales[i++] = strjoina("LANG=", arg_locale);
 276         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 277                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 278
 279         if (i == 0)
 280                 return 0;
 281
 282         locales[i] = NULL;
 283
 284         mkdir_parents(etc_localeconf, 0755);
 285         r = write_env_file(etc_localeconf, locales);
 286         if (r < 0)
 287                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 288
 289         log_info("%s written.", etc_localeconf);
 290         return 0;
 291 }
 292
 293 static int prompt_keymap(void) {
 294         _cleanup_strv_free_ char **kmaps = NULL;
 295         int r;
 296
 297         if (arg_keymap)
 298                 return 0;
 299
 300         if (!arg_prompt_keymap)
 301                 return 0;
 302
 303         r = get_keymaps(&kmaps);
 304         if (r == -ENOENT) /* no keymaps installed */
 305                 return r;
 306         if (r < 0)
 307                 return log_error_errno(r, "Failed to read keymaps: %m");
 308
 309         print_welcome();
 310
 311         printf("\nAvailable keymaps:\n\n");
 312         r = show_menu(kmaps, 3, 22, 60);
 313         if (r < 0)
 314                 return r;
 315
 316         putchar('\n');
 317
 318         return prompt_loop("Please enter system keymap name or number",
 319                            kmaps, keymap_is_valid, &arg_keymap);
 320 }
 321
 322 static int process_keymap(void) {
 323         const char *etc_vconsoleconf;
 324         char **keymap;
 325         int r;
 326
 327         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 328         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 329                 return 0;
 330
 331         if (arg_copy_keymap && arg_root) {
 332
 333                 mkdir_parents(etc_vconsoleconf, 0755);
 334                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, COPY_REFLINK);
 335                 if (r != -ENOENT) {
 336                         if (r < 0)
 337                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 338
 339                         log_info("%s copied.", etc_vconsoleconf);
 340                         return 0;
 341                 }
 342         }
 343
 344         r = prompt_keymap();
 345         if (r == -ENOENT)
 346                 return 0; /* don't fail if no keymaps are installed */
 347         if (r < 0)
 348                 return r;
 349
 350         if (isempty(arg_keymap))
 351                 return 0;
 352
 353         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 354
 355         r = mkdir_parents(etc_vconsoleconf, 0755);
 356         if (r < 0)
 357                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 358
 359         r = write_env_file(etc_vconsoleconf, keymap);
 360         if (r < 0)
 361                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 362
 363         log_info("%s written.", etc_vconsoleconf);
 364         return 0;
 365 }
 366
 367 static bool timezone_is_valid_log_error(const char *name) {
 368         return timezone_is_valid(name, LOG_ERR);
 369 }
 370
 371 static int prompt_timezone(void) {
 372         _cleanup_strv_free_ char **zones = NULL;
 373         int r;
 374
 375         if (arg_timezone)
 376                 return 0;
 377
 378         if (!arg_prompt_timezone)
 379                 return 0;
 380
 381         r = get_timezones(&zones);
 382         if (r < 0)
 383                 return log_error_errno(r, "Cannot query timezone list: %m");
 384
 385         print_welcome();
 386
 387         printf("\nAvailable Time Zones:\n\n");
 388         r = show_menu(zones, 3, 22, 30);
 389         if (r < 0)
 390                 return r;
 391
 392         putchar('\n');
 393
 394         r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
 395         if (r < 0)
 396                 return r;
 397
 398         return 0;
 399 }
 400
 401 static int process_timezone(void) {
 402         const char *etc_localtime, *e;
 403         int r;
 404
 405         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 406         if (laccess(etc_localtime, F_OK) >= 0)
 407                 return 0;
 408
 409         if (arg_copy_timezone && arg_root) {
 410                 _cleanup_free_ char *p = NULL;
 411
 412                 r = readlink_malloc("/etc/localtime", &p);
 413                 if (r != -ENOENT) {
 414                         if (r < 0)
 415                                 return log_error_errno(r, "Failed to read host timezone: %m");
 416
 417                         mkdir_parents(etc_localtime, 0755);
 418                         if (symlink(p, etc_localtime) < 0)
 419                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 420
 421                         log_info("%s copied.", etc_localtime);
 422                         return 0;
 423                 }
 424         }
 425
 426         r = prompt_timezone();
 427         if (r < 0)
 428                 return r;
 429
 430         if (isempty(arg_timezone))
 431                 return 0;
 432
 433         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 434
 435         mkdir_parents(etc_localtime, 0755);
 436         if (symlink(e, etc_localtime) < 0)
 437                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 438
 439         log_info("%s written", etc_localtime);
 440         return 0;
 441 }
 442
 443 static int prompt_hostname(void) {
 444         int r;
 445
 446         if (arg_hostname)
 447                 return 0;
 448
 449         if (!arg_prompt_hostname)
 450                 return 0;
 451
 452         print_welcome();
 453         putchar('\n');
 454
 455         for (;;) {
 456                 _cleanup_free_ char *h = NULL;
 457
 458                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(TRIANGULAR_BULLET));
 459                 if (r < 0)
 460                         return log_error_errno(r, "Failed to query hostname: %m");
 461
 462                 if (isempty(h)) {
 463                         log_warning("No hostname entered, skipping.");
 464                         break;
 465                 }
 466
 467                 if (!hostname_is_valid(h, true)) {
 468                         log_error("Specified hostname invalid.");
 469                         continue;
 470                 }
 471
 472                 /* Get rid of the trailing dot that we allow, but don't want to see */
 473                 arg_hostname = hostname_cleanup(h);
 474                 h = NULL;
 475                 break;
 476         }
 477
 478         return 0;
 479 }
 480
 481 static int process_hostname(void) {
 482         const char *etc_hostname;
 483         int r;
 484
 485         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 486         if (laccess(etc_hostname, F_OK) >= 0)
 487                 return 0;
 488
 489         r = prompt_hostname();
 490         if (r < 0)
 491                 return r;
 492
 493         if (isempty(arg_hostname))
 494                 return 0;
 495
 496         mkdir_parents(etc_hostname, 0755);
 497         r = write_string_file(etc_hostname, arg_hostname,
 498                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
 499         if (r < 0)
 500                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 501
 502         log_info("%s written.", etc_hostname);
 503         return 0;
 504 }
 505
 506 static int process_machine_id(void) {
 507         const char *etc_machine_id;
 508         char id[SD_ID128_STRING_MAX];
 509         int r;
 510
 511         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 512         if (laccess(etc_machine_id, F_OK) >= 0)
 513                 return 0;
 514
 515         if (sd_id128_is_null(arg_machine_id))
 516                 return 0;
 517
 518         mkdir_parents(etc_machine_id, 0755);
 519         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 520                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
 521         if (r < 0)
 522                 return log_error_errno(r, "Failed to write machine id: %m");
 523
 524         log_info("%s written.", etc_machine_id);
 525         return 0;
 526 }
 527
 528 static int prompt_root_password(void) {
 529         const char *msg1, *msg2, *etc_shadow;
 530         int r;
 531
 532         if (arg_root_password)
 533                 return 0;
 534
 535         if (!arg_prompt_root_password)
 536                 return 0;
 537
 538         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 539         if (laccess(etc_shadow, F_OK) >= 0)
 540                 return 0;
 541
 542         print_welcome();
 543         putchar('\n');
 544
 545         msg1 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 546         msg2 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter new root password again: ");
 547
 548         for (;;) {
 549                 _cleanup_string_free_erase_ char *a = NULL, *b = NULL;
 550
 551                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 552                 if (r < 0)
 553                         return log_error_errno(r, "Failed to query root password: %m");
 554
 555                 if (isempty(a)) {
 556                         log_warning("No password entered, skipping.");
 557                         break;
 558                 }
 559
 560                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 561                 if (r < 0)
 562                         return log_error_errno(r, "Failed to query root password: %m");
 563
 564                 if (!streq(a, b)) {
 565                         log_error("Entered passwords did not match, please try again.");
 566                         continue;
 567                 }
 568
 569                 arg_root_password = TAKE_PTR(a);
 570                 break;
 571         }
 572
 573         return 0;
 574 }
 575
 576 static int write_root_shadow(const char *path, const struct spwd *p) {
 577         _cleanup_fclose_ FILE *f = NULL;
 578         int r;
 579
 580         assert(path);
 581         assert(p);
 582
 583         RUN_WITH_UMASK(0777)
 584                 f = fopen(path, "wex");
 585         if (!f)
 586                 return -errno;
 587
 588         r = putspent_sane(p, f);
 589         if (r < 0)
 590                 return r;
 591
 592         return fflush_sync_and_check(f);
 593 }
 594
 595 static int process_root_password(void) {
 596
 597         static const char table[] =
 598                 "abcdefghijklmnopqrstuvwxyz"
 599                 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 600                 "0123456789"
 601                 "./";
 602
 603         struct spwd item = {
 604                 .sp_namp = (char*) "root",
 605                 .sp_min = -1,
 606                 .sp_max = -1,
 607                 .sp_warn = -1,
 608                 .sp_inact = -1,
 609                 .sp_expire = -1,
 610                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 611         };
 612
 613         _cleanup_close_ int lock = -1;
 614         char salt[3+16+1+1];
 615         uint8_t raw[16];
 616         unsigned i;
 617         char *j;
 618
 619         const char *etc_shadow;
 620         int r;
 621
 622         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 623         if (laccess(etc_shadow, F_OK) >= 0)
 624                 return 0;
 625
 626         mkdir_parents(etc_shadow, 0755);
 627
 628         lock = take_etc_passwd_lock(arg_root);
 629         if (lock < 0)
 630                 return log_error_errno(lock, "Failed to take a lock: %m");
 631
 632         if (arg_copy_root_password && arg_root) {
 633                 struct spwd *p;
 634
 635                 errno = 0;
 636                 p = getspnam("root");
 637                 if (p || errno != ENOENT) {
 638                         if (!p) {
 639                                 if (!errno)
 640                                         errno = EIO;
 641
 642                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 643                         }
 644
 645                         r = write_root_shadow(etc_shadow, p);
 646                         if (r < 0)
 647                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 648
 649                         log_info("%s copied.", etc_shadow);
 650                         return 0;
 651                 }
 652         }
 653
 654         r = prompt_root_password();
 655         if (r < 0)
 656                 return r;
 657
 658         if (!arg_root_password)
 659                 return 0;
 660
 661         r = acquire_random_bytes(raw, 16, true);
 662         if (r < 0)
 663                 return log_error_errno(r, "Failed to get salt: %m");
 664
 665         /* We only bother with SHA512 hashed passwords, the rest is legacy, and we don't do legacy. */
 666         assert_cc(sizeof(table) == 64 + 1);
 667         j = stpcpy(salt, "$6$");
 668         for (i = 0; i < 16; i++)
 669                 j[i] = table[raw[i] & 63];
 670         j[i++] = '$';
 671         j[i] = 0;
 672
 673         errno = 0;
 674         item.sp_pwdp = crypt(arg_root_password, salt);
 675         if (!item.sp_pwdp) {
 676                 if (!errno)
 677                         errno = EINVAL;
 678
 679                 return log_error_errno(errno, "Failed to encrypt password: %m");
 680         }
 681
 682         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 683
 684         r = write_root_shadow(etc_shadow, &item);
 685         if (r < 0)
 686                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 687
 688         log_info("%s written.", etc_shadow);
 689         return 0;
 690 }
 691
 692 static void help(void) {
 693         printf("%s [OPTIONS...]\n\n"
 694                "Configures basic settings of the system.\n\n"
 695                "  -h --help                    Show this help\n"
 696                "     --version                 Show package version\n"
 697                "     --root=PATH               Operate on an alternate filesystem root\n"
 698                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 699                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 700                "     --keymap=KEYMAP           Set keymap\n"
 701                "     --timezone=TIMEZONE       Set timezone\n"
 702                "     --hostname=NAME           Set host name\n"
 703                "     --machine-ID=ID           Set machine ID\n"
 704                "     --root-password=PASSWORD  Set root password\n"
 705                "     --root-password-file=FILE Set root password from file\n"
 706                "     --prompt-locale           Prompt the user for locale settings\n"
 707                "     --prompt-keymap           Prompt the user for keymap settings\n"
 708                "     --prompt-timezone         Prompt the user for timezone\n"
 709                "     --prompt-hostname         Prompt the user for hostname\n"
 710                "     --prompt-root-password    Prompt the user for root password\n"
 711                "     --prompt                  Prompt for all of the above\n"
 712                "     --copy-locale             Copy locale from host\n"
 713                "     --copy-keymap             Copy keymap from host\n"
 714                "     --copy-timezone           Copy timezone from host\n"
 715                "     --copy-root-password      Copy root password from host\n"
 716                "     --copy                    Copy locale, keymap, timezone, root password\n"
 717                "     --setup-machine-id        Generate a new random machine ID\n"
 718                , program_invocation_short_name);
 719 }
 720
 721 static int parse_argv(int argc, char *argv[]) {
 722
 723         enum {
 724                 ARG_VERSION = 0x100,
 725                 ARG_ROOT,
 726                 ARG_LOCALE,
 727                 ARG_LOCALE_MESSAGES,
 728                 ARG_KEYMAP,
 729                 ARG_TIMEZONE,
 730                 ARG_HOSTNAME,
 731                 ARG_MACHINE_ID,
 732                 ARG_ROOT_PASSWORD,
 733                 ARG_ROOT_PASSWORD_FILE,
 734                 ARG_PROMPT,
 735                 ARG_PROMPT_LOCALE,
 736                 ARG_PROMPT_KEYMAP,
 737                 ARG_PROMPT_TIMEZONE,
 738                 ARG_PROMPT_HOSTNAME,
 739                 ARG_PROMPT_ROOT_PASSWORD,
 740                 ARG_COPY,
 741                 ARG_COPY_LOCALE,
 742                 ARG_COPY_KEYMAP,
 743                 ARG_COPY_TIMEZONE,
 744                 ARG_COPY_ROOT_PASSWORD,
 745                 ARG_SETUP_MACHINE_ID,
 746         };
 747
 748         static const struct option options[] = {
 749                 { "help",                 no_argument,       NULL, 'h'                      },
 750                 { "version",              no_argument,       NULL, ARG_VERSION              },
 751                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 752                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 753                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 754                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 755                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 756                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 757                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 758                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 759                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 760                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 761                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 762                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 763                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 764                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 765                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 766                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 767                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 768                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 769                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 770                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 771                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 772                 {}
 773         };
 774
 775         int r, c;
 776
 777         assert(argc >= 0);
 778         assert(argv);
 779
 780         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 781
 782                 switch (c) {
 783
 784                 case 'h':
 785                         help();
 786                         return 0;
 787
 788                 case ARG_VERSION:
 789                         return version();
 790
 791                 case ARG_ROOT:
 792                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 793                         if (r < 0)
 794                                 return r;
 795                         break;
 796
 797                 case ARG_LOCALE:
 798                         if (!locale_is_valid(optarg)) {
 799                                 log_error("Locale %s is not valid.", optarg);
 800                                 return -EINVAL;
 801                         }
 802
 803                         r = free_and_strdup(&arg_locale, optarg);
 804                         if (r < 0)
 805                                 return log_oom();
 806
 807                         break;
 808
 809                 case ARG_LOCALE_MESSAGES:
 810                         if (!locale_is_valid(optarg)) {
 811                                 log_error("Locale %s is not valid.", optarg);
 812                                 return -EINVAL;
 813                         }
 814
 815                         r = free_and_strdup(&arg_locale_messages, optarg);
 816                         if (r < 0)
 817                                 return log_oom();
 818
 819                         break;
 820
 821                 case ARG_KEYMAP:
 822                         if (!keymap_is_valid(optarg)) {
 823                                 log_error("Keymap %s is not valid.", optarg);
 824                                 return -EINVAL;
 825                         }
 826
 827                         r = free_and_strdup(&arg_keymap, optarg);
 828                         if (r < 0)
 829                                 return log_oom();
 830
 831                         break;
 832
 833                 case ARG_TIMEZONE:
 834                         if (!timezone_is_valid(optarg, LOG_ERR)) {
 835                                 log_error("Timezone %s is not valid.", optarg);
 836                                 return -EINVAL;
 837                         }
 838
 839                         r = free_and_strdup(&arg_timezone, optarg);
 840                         if (r < 0)
 841                                 return log_oom();
 842
 843                         break;
 844
 845                 case ARG_ROOT_PASSWORD:
 846                         r = free_and_strdup(&arg_root_password, optarg);
 847                         if (r < 0)
 848                                 return log_oom();
 849                         break;
 850
 851                 case ARG_ROOT_PASSWORD_FILE:
 852                         arg_root_password = mfree(arg_root_password);
 853
 854                         r = read_one_line_file(optarg, &arg_root_password);
 855                         if (r < 0)
 856                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 857
 858                         break;
 859
 860                 case ARG_HOSTNAME:
 861                         if (!hostname_is_valid(optarg, true)) {
 862                                 log_error("Host name %s is not valid.", optarg);
 863                                 return -EINVAL;
 864                         }
 865
 866                         hostname_cleanup(optarg);
 867                         r = free_and_strdup(&arg_hostname, optarg);
 868                         if (r < 0)
 869                                 return log_oom();
 870
 871                         break;
 872
 873                 case ARG_MACHINE_ID:
 874                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0) {
 875                                 log_error("Failed to parse machine id %s.", optarg);
 876                                 return -EINVAL;
 877                         }
 878
 879                         break;
 880
 881                 case ARG_PROMPT:
 882                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
 883                         break;
 884
 885                 case ARG_PROMPT_LOCALE:
 886                         arg_prompt_locale = true;
 887                         break;
 888
 889                 case ARG_PROMPT_KEYMAP:
 890                         arg_prompt_keymap = true;
 891                         break;
 892
 893                 case ARG_PROMPT_TIMEZONE:
 894                         arg_prompt_timezone = true;
 895                         break;
 896
 897                 case ARG_PROMPT_HOSTNAME:
 898                         arg_prompt_hostname = true;
 899                         break;
 900
 901                 case ARG_PROMPT_ROOT_PASSWORD:
 902                         arg_prompt_root_password = true;
 903                         break;
 904
 905                 case ARG_COPY:
 906                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
 907                         break;
 908
 909                 case ARG_COPY_LOCALE:
 910                         arg_copy_locale = true;
 911                         break;
 912
 913                 case ARG_COPY_KEYMAP:
 914                         arg_copy_keymap = true;
 915                         break;
 916
 917                 case ARG_COPY_TIMEZONE:
 918                         arg_copy_timezone = true;
 919                         break;
 920
 921                 case ARG_COPY_ROOT_PASSWORD:
 922                         arg_copy_root_password = true;
 923                         break;
 924
 925                 case ARG_SETUP_MACHINE_ID:
 926
 927                         r = sd_id128_randomize(&arg_machine_id);
 928                         if (r < 0)
 929                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
 930
 931                         break;
 932
 933                 case '?':
 934                         return -EINVAL;
 935
 936                 default:
 937                         assert_not_reached("Unhandled option");
 938                 }
 939
 940         return 1;
 941 }
 942
 943 int main(int argc, char *argv[]) {
 944         bool enabled;
 945         int r;
 946
 947         r = parse_argv(argc, argv);
 948         if (r <= 0)
 949                 goto finish;
 950
 951         log_set_target(LOG_TARGET_AUTO);
 952         log_parse_environment();
 953         log_open();
 954
 955         umask(0022);
 956
 957         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 958         if (r < 0) {
 959                 log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring.");
 960                 goto finish;
 961         }
 962         if (r > 0 && !enabled) {
 963                 r = 0; /* disabled */
 964                 goto finish;
 965         }
 966
 967         r = process_locale();
 968         if (r < 0)
 969                 goto finish;
 970
 971         r = process_keymap();
 972         if (r < 0)
 973                 goto finish;
 974
 975         r = process_timezone();
 976         if (r < 0)
 977                 goto finish;
 978
 979         r = process_hostname();
 980         if (r < 0)
 981                 goto finish;
 982
 983         r = process_machine_id();
 984         if (r < 0)
 985                 goto finish;
 986
 987         r = process_root_password();
 988         if (r < 0)
 989                 goto finish;
 990
 991 finish:
 992         free(arg_root);
 993         free(arg_locale);
 994         free(arg_locale_messages);
 995         free(arg_keymap);
 996         free(arg_timezone);
 997         free(arg_hostname);
 998         string_erase(arg_root_password);
 999         free(arg_root_password);
1000
1001         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
1002 }