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, unsigned percentage, 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, \"list\" to list options): ",
 179                                special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 180                 if (r < 0)
 181                         return log_error_errno(r, "Failed to query user: %m");
 182
 183                 if (isempty(p)) {
 184                         log_warning("No data entered, skipping.");
 185                         return 0;
 186                 }
 187
 188                 if (streq(p, "list")) {
 189                         r = show_menu(l, 3, 22, percentage);
 190                         if (r < 0)
 191                                 return r;
 192
 193                         putchar('\n');
 194                         continue;
 195                 };
 196
 197                 r = safe_atou(p, &u);
 198                 if (r >= 0) {
 199                         if (u <= 0 || u > strv_length(l)) {
 200                                 log_error("Specified entry number out of range.");
 201                                 continue;
 202                         }
 203
 204                         log_info("Selected '%s'.", l[u-1]);
 205                         if (free_and_strdup(ret, l[u-1]) < 0)
 206                                 return log_oom();
 207
 208                         return 0;
 209                 }
 210
 211                 if (!is_valid(p)) {
 212                         log_error("Entered data invalid.");
 213                         continue;
 214                 }
 215
 216                 return free_and_replace(*ret, p);
 217         }
 218 }
 219
 220 static int prompt_locale(void) {
 221         _cleanup_strv_free_ char **locales = NULL;
 222         int r;
 223
 224         if (arg_locale || arg_locale_messages)
 225                 return 0;
 226
 227         if (!arg_prompt_locale)
 228                 return 0;
 229
 230         r = get_locales(&locales);
 231         if (r < 0)
 232                 return log_error_errno(r, "Cannot query locales list: %m");
 233
 234         if (strv_isempty(locales))
 235                 log_debug("No locales found, skipping locale selection.");
 236         else if (strv_length(locales) == 1) {
 237
 238                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 239                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 240                 else {
 241                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 242
 243                         arg_locale = strdup(locales[0]);
 244                         if (!arg_locale)
 245                                 return log_oom();
 246
 247                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 248                 }
 249         } else {
 250                 print_welcome();
 251
 252                 r = prompt_loop("Please enter system locale name or number",
 253                                 locales, 60, locale_is_valid, &arg_locale);
 254                 if (r < 0)
 255                         return r;
 256
 257                 if (isempty(arg_locale))
 258                         return 0;
 259
 260                 r = prompt_loop("Please enter system message locale name or number",
 261                                 locales, 60, locale_is_valid, &arg_locale_messages);
 262                 if (r < 0)
 263                         return r;
 264
 265                 /* Suppress the messages setting if it's the same as the main locale anyway */
 266                 if (streq_ptr(arg_locale, arg_locale_messages))
 267                         arg_locale_messages = mfree(arg_locale_messages);
 268         }
 269
 270         return 0;
 271 }
 272
 273 static int process_locale(void) {
 274         const char *etc_localeconf;
 275         char* locales[3];
 276         unsigned i = 0;
 277         int r;
 278
 279         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 280         if (laccess(etc_localeconf, F_OK) >= 0)
 281                 return 0;
 282
 283         if (arg_copy_locale && arg_root) {
 284
 285                 (void) mkdir_parents(etc_localeconf, 0755);
 286                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 287                 if (r != -ENOENT) {
 288                         if (r < 0)
 289                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 290
 291                         log_info("%s copied.", etc_localeconf);
 292                         return 0;
 293                 }
 294         }
 295
 296         r = prompt_locale();
 297         if (r < 0)
 298                 return r;
 299
 300         if (!isempty(arg_locale))
 301                 locales[i++] = strjoina("LANG=", arg_locale);
 302         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 303                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 304
 305         if (i == 0)
 306                 return 0;
 307
 308         locales[i] = NULL;
 309
 310         (void) mkdir_parents(etc_localeconf, 0755);
 311         r = write_env_file(etc_localeconf, locales);
 312         if (r < 0)
 313                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 314
 315         log_info("%s written.", etc_localeconf);
 316         return 0;
 317 }
 318
 319 static int prompt_keymap(void) {
 320         _cleanup_strv_free_ char **kmaps = NULL;
 321         int r;
 322
 323         if (arg_keymap)
 324                 return 0;
 325
 326         if (!arg_prompt_keymap)
 327                 return 0;
 328
 329         r = get_keymaps(&kmaps);
 330         if (r == -ENOENT) /* no keymaps installed */
 331                 return r;
 332         if (r < 0)
 333                 return log_error_errno(r, "Failed to read keymaps: %m");
 334
 335         print_welcome();
 336
 337         return prompt_loop("Please enter system keymap name or number",
 338                            kmaps, 60, keymap_is_valid, &arg_keymap);
 339 }
 340
 341 static int process_keymap(void) {
 342         const char *etc_vconsoleconf;
 343         char **keymap;
 344         int r;
 345
 346         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 347         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 348                 return 0;
 349
 350         if (arg_copy_keymap && arg_root) {
 351
 352                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 353                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 354                 if (r != -ENOENT) {
 355                         if (r < 0)
 356                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 357
 358                         log_info("%s copied.", etc_vconsoleconf);
 359                         return 0;
 360                 }
 361         }
 362
 363         r = prompt_keymap();
 364         if (r == -ENOENT)
 365                 return 0; /* don't fail if no keymaps are installed */
 366         if (r < 0)
 367                 return r;
 368
 369         if (isempty(arg_keymap))
 370                 return 0;
 371
 372         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 373
 374         r = mkdir_parents(etc_vconsoleconf, 0755);
 375         if (r < 0)
 376                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 377
 378         r = write_env_file(etc_vconsoleconf, keymap);
 379         if (r < 0)
 380                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 381
 382         log_info("%s written.", etc_vconsoleconf);
 383         return 0;
 384 }
 385
 386 static bool timezone_is_valid_log_error(const char *name) {
 387         return timezone_is_valid(name, LOG_ERR);
 388 }
 389
 390 static int prompt_timezone(void) {
 391         _cleanup_strv_free_ char **zones = NULL;
 392         int r;
 393
 394         if (arg_timezone)
 395                 return 0;
 396
 397         if (!arg_prompt_timezone)
 398                 return 0;
 399
 400         r = get_timezones(&zones);
 401         if (r < 0)
 402                 return log_error_errno(r, "Cannot query timezone list: %m");
 403
 404         print_welcome();
 405
 406         r = prompt_loop("Please enter timezone name or number",
 407                         zones, 30, timezone_is_valid_log_error, &arg_timezone);
 408         if (r < 0)
 409                 return r;
 410
 411         return 0;
 412 }
 413
 414 static int process_timezone(void) {
 415         const char *etc_localtime, *e;
 416         int r;
 417
 418         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 419         if (laccess(etc_localtime, F_OK) >= 0)
 420                 return 0;
 421
 422         if (arg_copy_timezone && arg_root) {
 423                 _cleanup_free_ char *p = NULL;
 424
 425                 r = readlink_malloc("/etc/localtime", &p);
 426                 if (r != -ENOENT) {
 427                         if (r < 0)
 428                                 return log_error_errno(r, "Failed to read host timezone: %m");
 429
 430                         (void) mkdir_parents(etc_localtime, 0755);
 431                         if (symlink(p, etc_localtime) < 0)
 432                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 433
 434                         log_info("%s copied.", etc_localtime);
 435                         return 0;
 436                 }
 437         }
 438
 439         r = prompt_timezone();
 440         if (r < 0)
 441                 return r;
 442
 443         if (isempty(arg_timezone))
 444                 return 0;
 445
 446         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 447
 448         (void) mkdir_parents(etc_localtime, 0755);
 449         if (symlink(e, etc_localtime) < 0)
 450                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 451
 452         log_info("%s written", etc_localtime);
 453         return 0;
 454 }
 455
 456 static int prompt_hostname(void) {
 457         int r;
 458
 459         if (arg_hostname)
 460                 return 0;
 461
 462         if (!arg_prompt_hostname)
 463                 return 0;
 464
 465         print_welcome();
 466         putchar('\n');
 467
 468         for (;;) {
 469                 _cleanup_free_ char *h = NULL;
 470
 471                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 472                 if (r < 0)
 473                         return log_error_errno(r, "Failed to query hostname: %m");
 474
 475                 if (isempty(h)) {
 476                         log_warning("No hostname entered, skipping.");
 477                         break;
 478                 }
 479
 480                 if (!hostname_is_valid(h, true)) {
 481                         log_error("Specified hostname invalid.");
 482                         continue;
 483                 }
 484
 485                 /* Get rid of the trailing dot that we allow, but don't want to see */
 486                 arg_hostname = hostname_cleanup(h);
 487                 h = NULL;
 488                 break;
 489         }
 490
 491         return 0;
 492 }
 493
 494 static int process_hostname(void) {
 495         const char *etc_hostname;
 496         int r;
 497
 498         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 499         if (laccess(etc_hostname, F_OK) >= 0)
 500                 return 0;
 501
 502         r = prompt_hostname();
 503         if (r < 0)
 504                 return r;
 505
 506         if (isempty(arg_hostname))
 507                 return 0;
 508
 509         r = write_string_file(etc_hostname, arg_hostname,
 510                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 511         if (r < 0)
 512                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 513
 514         log_info("%s written.", etc_hostname);
 515         return 0;
 516 }
 517
 518 static int process_machine_id(void) {
 519         const char *etc_machine_id;
 520         char id[SD_ID128_STRING_MAX];
 521         int r;
 522
 523         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 524         if (laccess(etc_machine_id, F_OK) >= 0)
 525                 return 0;
 526
 527         if (sd_id128_is_null(arg_machine_id))
 528                 return 0;
 529
 530         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 531                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 532         if (r < 0)
 533                 return log_error_errno(r, "Failed to write machine id: %m");
 534
 535         log_info("%s written.", etc_machine_id);
 536         return 0;
 537 }
 538
 539 static int prompt_root_password(void) {
 540         const char *msg1, *msg2, *etc_shadow;
 541         int r;
 542
 543         if (arg_root_password)
 544                 return 0;
 545
 546         if (!arg_prompt_root_password)
 547                 return 0;
 548
 549         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 550         if (laccess(etc_shadow, F_OK) >= 0)
 551                 return 0;
 552
 553         print_welcome();
 554         putchar('\n');
 555
 556         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 557         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again: ");
 558
 559         for (;;) {
 560                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 561
 562                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 563                 if (r < 0)
 564                         return log_error_errno(r, "Failed to query root password: %m");
 565                 if (strv_length(a) != 1) {
 566                         log_warning("Received multiple passwords, where we expected one.");
 567                         return -EINVAL;
 568                 }
 569
 570                 if (isempty(*a)) {
 571                         log_warning("No password entered, skipping.");
 572                         break;
 573                 }
 574
 575                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 576                 if (r < 0)
 577                         return log_error_errno(r, "Failed to query root password: %m");
 578
 579                 if (!streq(*a, *b)) {
 580                         log_error("Entered passwords did not match, please try again.");
 581                         continue;
 582                 }
 583
 584                 arg_root_password = TAKE_PTR(*a);
 585                 break;
 586         }
 587
 588         return 0;
 589 }
 590
 591 static int write_root_shadow(const char *path, const struct spwd *p) {
 592         _cleanup_fclose_ FILE *f = NULL;
 593         int r;
 594
 595         assert(path);
 596         assert(p);
 597
 598         RUN_WITH_UMASK(0777)
 599                 f = fopen(path, "wex");
 600         if (!f)
 601                 return -errno;
 602
 603         r = putspent_sane(p, f);
 604         if (r < 0)
 605                 return r;
 606
 607         return fflush_sync_and_check(f);
 608 }
 609
 610 static int process_root_password(void) {
 611
 612         struct spwd item = {
 613                 .sp_namp = (char*) "root",
 614                 .sp_min = -1,
 615                 .sp_max = -1,
 616                 .sp_warn = -1,
 617                 .sp_inact = -1,
 618                 .sp_expire = -1,
 619                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 620         };
 621         _cleanup_free_ char *salt = NULL;
 622         _cleanup_close_ int lock = -1;
 623         struct crypt_data cd = {};
 624
 625         const char *etc_shadow;
 626         int r;
 627
 628         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 629         if (laccess(etc_shadow, F_OK) >= 0)
 630                 return 0;
 631
 632         (void) mkdir_parents(etc_shadow, 0755);
 633
 634         lock = take_etc_passwd_lock(arg_root);
 635         if (lock < 0)
 636                 return log_error_errno(lock, "Failed to take a lock: %m");
 637
 638         if (arg_copy_root_password && arg_root) {
 639                 struct spwd *p;
 640
 641                 errno = 0;
 642                 p = getspnam("root");
 643                 if (p || errno != ENOENT) {
 644                         if (!p) {
 645                                 if (!errno)
 646                                         errno = EIO;
 647
 648                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 649                         }
 650
 651                         r = write_root_shadow(etc_shadow, p);
 652                         if (r < 0)
 653                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 654
 655                         log_info("%s copied.", etc_shadow);
 656                         return 0;
 657                 }
 658         }
 659
 660         r = prompt_root_password();
 661         if (r < 0)
 662                 return r;
 663
 664         if (!arg_root_password)
 665                 return 0;
 666
 667         r = make_salt(&salt);
 668         if (r < 0)
 669                 return log_error_errno(r, "Failed to get salt: %m");
 670
 671         errno = 0;
 672         item.sp_pwdp = crypt_r(arg_root_password, salt, &cd);
 673         if (!item.sp_pwdp)
 674                 return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
 675                                        "Failed to encrypt password: %m");
 676
 677         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 678
 679         r = write_root_shadow(etc_shadow, &item);
 680         if (r < 0)
 681                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 682
 683         log_info("%s written.", etc_shadow);
 684         return 0;
 685 }
 686
 687 static int help(void) {
 688         _cleanup_free_ char *link = NULL;
 689         int r;
 690
 691         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 692         if (r < 0)
 693                 return log_oom();
 694
 695         printf("%s [OPTIONS...]\n\n"
 696                "Configures basic settings of the system.\n\n"
 697                "  -h --help                    Show this help\n"
 698                "     --version                 Show package version\n"
 699                "     --root=PATH               Operate on an alternate filesystem root\n"
 700                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 701                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 702                "     --keymap=KEYMAP           Set keymap\n"
 703                "     --timezone=TIMEZONE       Set timezone\n"
 704                "     --hostname=NAME           Set host name\n"
 705                "     --machine-ID=ID           Set machine ID\n"
 706                "     --root-password=PASSWORD  Set root password\n"
 707                "     --root-password-file=FILE Set root password from file\n"
 708                "     --prompt-locale           Prompt the user for locale settings\n"
 709                "     --prompt-keymap           Prompt the user for keymap settings\n"
 710                "     --prompt-timezone         Prompt the user for timezone\n"
 711                "     --prompt-hostname         Prompt the user for hostname\n"
 712                "     --prompt-root-password    Prompt the user for root password\n"
 713                "     --prompt                  Prompt for all of the above\n"
 714                "     --copy-locale             Copy locale from host\n"
 715                "     --copy-keymap             Copy keymap from host\n"
 716                "     --copy-timezone           Copy timezone from host\n"
 717                "     --copy-root-password      Copy root password from host\n"
 718                "     --copy                    Copy locale, keymap, timezone, root password\n"
 719                "     --setup-machine-id        Generate a new random machine ID\n"
 720                "\nSee the %s for details.\n"
 721                , program_invocation_short_name
 722                , link
 723         );
 724
 725         return 0;
 726 }
 727
 728 static int parse_argv(int argc, char *argv[]) {
 729
 730         enum {
 731                 ARG_VERSION = 0x100,
 732                 ARG_ROOT,
 733                 ARG_LOCALE,
 734                 ARG_LOCALE_MESSAGES,
 735                 ARG_KEYMAP,
 736                 ARG_TIMEZONE,
 737                 ARG_HOSTNAME,
 738                 ARG_MACHINE_ID,
 739                 ARG_ROOT_PASSWORD,
 740                 ARG_ROOT_PASSWORD_FILE,
 741                 ARG_PROMPT,
 742                 ARG_PROMPT_LOCALE,
 743                 ARG_PROMPT_KEYMAP,
 744                 ARG_PROMPT_TIMEZONE,
 745                 ARG_PROMPT_HOSTNAME,
 746                 ARG_PROMPT_ROOT_PASSWORD,
 747                 ARG_COPY,
 748                 ARG_COPY_LOCALE,
 749                 ARG_COPY_KEYMAP,
 750                 ARG_COPY_TIMEZONE,
 751                 ARG_COPY_ROOT_PASSWORD,
 752                 ARG_SETUP_MACHINE_ID,
 753         };
 754
 755         static const struct option options[] = {
 756                 { "help",                 no_argument,       NULL, 'h'                      },
 757                 { "version",              no_argument,       NULL, ARG_VERSION              },
 758                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 759                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 760                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 761                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 762                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 763                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 764                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 765                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 766                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 767                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 768                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 769                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 770                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 771                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 772                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 773                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 774                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 775                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 776                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 777                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 778                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 779                 {}
 780         };
 781
 782         int r, c;
 783
 784         assert(argc >= 0);
 785         assert(argv);
 786
 787         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 788
 789                 switch (c) {
 790
 791                 case 'h':
 792                         return help();
 793
 794                 case ARG_VERSION:
 795                         return version();
 796
 797                 case ARG_ROOT:
 798                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 799                         if (r < 0)
 800                                 return r;
 801                         break;
 802
 803                 case ARG_LOCALE:
 804                         if (!locale_is_valid(optarg))
 805                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 806                                                        "Locale %s is not valid.", optarg);
 807
 808                         r = free_and_strdup(&arg_locale, optarg);
 809                         if (r < 0)
 810                                 return log_oom();
 811
 812                         break;
 813
 814                 case ARG_LOCALE_MESSAGES:
 815                         if (!locale_is_valid(optarg))
 816                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 817                                                        "Locale %s is not valid.", optarg);
 818
 819                         r = free_and_strdup(&arg_locale_messages, optarg);
 820                         if (r < 0)
 821                                 return log_oom();
 822
 823                         break;
 824
 825                 case ARG_KEYMAP:
 826                         if (!keymap_is_valid(optarg))
 827                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 828                                                        "Keymap %s is not valid.", optarg);
 829
 830                         r = free_and_strdup(&arg_keymap, optarg);
 831                         if (r < 0)
 832                                 return log_oom();
 833
 834                         break;
 835
 836                 case ARG_TIMEZONE:
 837                         if (!timezone_is_valid(optarg, LOG_ERR))
 838                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 839                                                        "Timezone %s is not valid.", optarg);
 840
 841                         r = free_and_strdup(&arg_timezone, optarg);
 842                         if (r < 0)
 843                                 return log_oom();
 844
 845                         break;
 846
 847                 case ARG_ROOT_PASSWORD:
 848                         r = free_and_strdup(&arg_root_password, optarg);
 849                         if (r < 0)
 850                                 return log_oom();
 851                         break;
 852
 853                 case ARG_ROOT_PASSWORD_FILE:
 854                         arg_root_password = mfree(arg_root_password);
 855
 856                         r = read_one_line_file(optarg, &arg_root_password);
 857                         if (r < 0)
 858                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 859
 860                         break;
 861
 862                 case ARG_HOSTNAME:
 863                         if (!hostname_is_valid(optarg, true))
 864                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 865                                                        "Host name %s is not valid.", optarg);
 866
 867                         hostname_cleanup(optarg);
 868                         r = free_and_strdup(&arg_hostname, optarg);
 869                         if (r < 0)
 870                                 return log_oom();
 871
 872                         break;
 873
 874                 case ARG_MACHINE_ID:
 875                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
 876                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 877                                                        "Failed to parse machine id %s.", optarg);
 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 static int run(int argc, char *argv[]) {
 944         bool enabled;
 945         int r;
 946
 947         r = parse_argv(argc, argv);
 948         if (r <= 0)
 949                 return r;
 950
 951         log_setup_service();
 952
 953         umask(0022);
 954
 955         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 956         if (r < 0)
 957                 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
 958         if (r > 0 && !enabled)
 959                 return 0; /* disabled */
 960
 961         r = process_locale();
 962         if (r < 0)
 963                 return r;
 964
 965         r = process_keymap();
 966         if (r < 0)
 967                 return r;
 968
 969         r = process_timezone();
 970         if (r < 0)
 971                 return r;
 972
 973         r = process_hostname();
 974         if (r < 0)
 975                 return r;
 976
 977         r = process_machine_id();
 978         if (r < 0)
 979                 return r;
 980
 981         r = process_root_password();
 982         if (r < 0)
 983                 return r;
 984
 985         return 0;
 986 }
 987
 988 DEFINE_MAIN_FUNCTION(run);