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