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 #include "sd-id128.h"
   8
   9 #include "alloc-util.h"
  10 #include "ask-password-api.h"
  11 #include "copy.h"
  12 #include "env-file.h"
  13 #include "fd-util.h"
  14 #include "fileio.h"
  15 #include "fs-util.h"
  16 #include "hostname-util.h"
  17 #include "kbd-util.h"
  18 #include "libcrypt-util.h"
  19 #include "locale-util.h"
  20 #include "main-func.h"
  21 #include "memory-util.h"
  22 #include "mkdir.h"
  23 #include "os-util.h"
  24 #include "parse-util.h"
  25 #include "path-util.h"
  26 #include "pretty-print.h"
  27 #include "proc-cmdline.h"
  28 #include "random-util.h"
  29 #include "string-util.h"
  30 #include "strv.h"
  31 #include "terminal-util.h"
  32 #include "time-util.h"
  33 #include "umask-util.h"
  34 #include "user-util.h"
  35
  36 static char *arg_root = NULL;
  37 static char *arg_locale = NULL;  /* $LANG */
  38 static char *arg_keymap = NULL;
  39 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  40 static char *arg_timezone = NULL;
  41 static char *arg_hostname = NULL;
  42 static sd_id128_t arg_machine_id = {};
  43 static char *arg_root_password = NULL;
  44 static bool arg_prompt_locale = false;
  45 static bool arg_prompt_keymap = false;
  46 static bool arg_prompt_timezone = false;
  47 static bool arg_prompt_hostname = false;
  48 static bool arg_prompt_root_password = false;
  49 static bool arg_copy_locale = false;
  50 static bool arg_copy_keymap = false;
  51 static bool arg_copy_timezone = false;
  52 static bool arg_copy_root_password = false;
  53
  54 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
  55 STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
  56 STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
  57 STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
  58 STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
  59 STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
  60 STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
  61
  62 static bool press_any_key(void) {
  63         char k = 0;
  64         bool need_nl = true;
  65
  66         printf("-- Press any key to proceed --");
  67         fflush(stdout);
  68
  69         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  70
  71         if (need_nl)
  72                 putchar('\n');
  73
  74         return k != 'q';
  75 }
  76
  77 static void print_welcome(void) {
  78         _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
  79         static bool done = false;
  80         const char *pn;
  81         int r;
  82
  83         if (done)
  84                 return;
  85
  86         r = parse_os_release(
  87                         arg_root,
  88                         "PRETTY_NAME", &pretty_name,
  89                         "ANSI_COLOR", &ansi_color,
  90                         NULL);
  91         if (r < 0)
  92                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
  93                                "Failed to read os-release file, ignoring: %m");
  94
  95         pn = isempty(pretty_name) ? "Linux" : pretty_name;
  96
  97         if (colors_enabled())
  98                 printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ansi_color, pn);
  99         else
 100                 printf("\nWelcome to your new installation of %s!\n", pn);
 101
 102         printf("\nPlease configure your system!\n\n");
 103
 104         press_any_key();
 105
 106         done = true;
 107 }
 108
 109 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 110         unsigned break_lines, break_modulo;
 111         size_t n, per_column, i, j;
 112
 113         assert(n_columns > 0);
 114
 115         n = strv_length(x);
 116         per_column = DIV_ROUND_UP(n, n_columns);
 117
 118         break_lines = lines();
 119         if (break_lines > 2)
 120                 break_lines--;
 121
 122         /* The first page gets two extra lines, since we want to show
 123          * a title */
 124         break_modulo = break_lines;
 125         if (break_modulo > 3)
 126                 break_modulo -= 3;
 127
 128         for (i = 0; i < per_column; i++) {
 129
 130                 for (j = 0; j < n_columns; j ++) {
 131                         _cleanup_free_ char *e = NULL;
 132
 133                         if (j * per_column + i >= n)
 134                                 break;
 135
 136                         e = ellipsize(x[j * per_column + i], width, percentage);
 137                         if (!e)
 138                                 return log_oom();
 139
 140                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 141                 }
 142
 143                 putchar('\n');
 144
 145                 /* on the first screen we reserve 2 extra lines for the title */
 146                 if (i % break_lines == break_modulo) {
 147                         if (!press_any_key())
 148                                 return 0;
 149                 }
 150         }
 151
 152         return 0;
 153 }
 154
 155 static int prompt_loop(const char *text, char **l, unsigned percentage, bool (*is_valid)(const char *name), char **ret) {
 156         int r;
 157
 158         assert(text);
 159         assert(is_valid);
 160         assert(ret);
 161
 162         for (;;) {
 163                 _cleanup_free_ char *p = NULL;
 164                 unsigned u;
 165
 166                 r = ask_string(&p, "%s %s (empty to skip, \"list\" to list options): ",
 167                                special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 168                 if (r < 0)
 169                         return log_error_errno(r, "Failed to query user: %m");
 170
 171                 if (isempty(p)) {
 172                         log_warning("No data entered, skipping.");
 173                         return 0;
 174                 }
 175
 176                 if (streq(p, "list")) {
 177                         r = show_menu(l, 3, 22, percentage);
 178                         if (r < 0)
 179                                 return r;
 180
 181                         putchar('\n');
 182                         continue;
 183                 };
 184
 185                 r = safe_atou(p, &u);
 186                 if (r >= 0) {
 187                         if (u <= 0 || u > strv_length(l)) {
 188                                 log_error("Specified entry number out of range.");
 189                                 continue;
 190                         }
 191
 192                         log_info("Selected '%s'.", l[u-1]);
 193                         if (free_and_strdup(ret, l[u-1]) < 0)
 194                                 return log_oom();
 195
 196                         return 0;
 197                 }
 198
 199                 if (!is_valid(p)) {
 200                         log_error("Entered data invalid.");
 201                         continue;
 202                 }
 203
 204                 return free_and_replace(*ret, p);
 205         }
 206 }
 207
 208 static bool locale_is_ok(const char *name) {
 209
 210         if (arg_root)
 211                 return locale_is_valid(name);
 212
 213         return locale_is_installed(name) > 0;
 214 }
 215
 216 static int prompt_locale(void) {
 217         _cleanup_strv_free_ char **locales = NULL;
 218         int r;
 219
 220         if (arg_locale || arg_locale_messages)
 221                 return 0;
 222
 223         if (!arg_prompt_locale)
 224                 return 0;
 225
 226         r = get_locales(&locales);
 227         if (r < 0)
 228                 return log_error_errno(r, "Cannot query locales list: %m");
 229
 230         if (strv_isempty(locales))
 231                 log_debug("No locales found, skipping locale selection.");
 232         else if (strv_length(locales) == 1) {
 233
 234                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 235                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 236                 else {
 237                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 238
 239                         arg_locale = strdup(locales[0]);
 240                         if (!arg_locale)
 241                                 return log_oom();
 242
 243                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 244                 }
 245         } else {
 246                 print_welcome();
 247
 248                 r = prompt_loop("Please enter system locale name or number",
 249                                 locales, 60, locale_is_ok, &arg_locale);
 250                 if (r < 0)
 251                         return r;
 252
 253                 if (isempty(arg_locale))
 254                         return 0;
 255
 256                 r = prompt_loop("Please enter system message locale name or number",
 257                                 locales, 60, locale_is_ok, &arg_locale_messages);
 258                 if (r < 0)
 259                         return r;
 260
 261                 /* Suppress the messages setting if it's the same as the main locale anyway */
 262                 if (streq_ptr(arg_locale, arg_locale_messages))
 263                         arg_locale_messages = mfree(arg_locale_messages);
 264         }
 265
 266         return 0;
 267 }
 268
 269 static int process_locale(void) {
 270         const char *etc_localeconf;
 271         char* locales[3];
 272         unsigned i = 0;
 273         int r;
 274
 275         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 276         if (laccess(etc_localeconf, F_OK) >= 0)
 277                 return 0;
 278
 279         if (arg_copy_locale && arg_root) {
 280
 281                 (void) mkdir_parents(etc_localeconf, 0755);
 282                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 283                 if (r != -ENOENT) {
 284                         if (r < 0)
 285                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 286
 287                         log_info("%s copied.", etc_localeconf);
 288                         return 0;
 289                 }
 290         }
 291
 292         r = prompt_locale();
 293         if (r < 0)
 294                 return r;
 295
 296         if (!isempty(arg_locale))
 297                 locales[i++] = strjoina("LANG=", arg_locale);
 298         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 299                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 300
 301         if (i == 0)
 302                 return 0;
 303
 304         locales[i] = NULL;
 305
 306         (void) mkdir_parents(etc_localeconf, 0755);
 307         r = write_env_file(etc_localeconf, locales);
 308         if (r < 0)
 309                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 310
 311         log_info("%s written.", etc_localeconf);
 312         return 0;
 313 }
 314
 315 static int prompt_keymap(void) {
 316         _cleanup_strv_free_ char **kmaps = NULL;
 317         int r;
 318
 319         if (arg_keymap)
 320                 return 0;
 321
 322         if (!arg_prompt_keymap)
 323                 return 0;
 324
 325         r = get_keymaps(&kmaps);
 326         if (r == -ENOENT) /* no keymaps installed */
 327                 return r;
 328         if (r < 0)
 329                 return log_error_errno(r, "Failed to read keymaps: %m");
 330
 331         print_welcome();
 332
 333         return prompt_loop("Please enter system keymap name or number",
 334                            kmaps, 60, keymap_is_valid, &arg_keymap);
 335 }
 336
 337 static int process_keymap(void) {
 338         const char *etc_vconsoleconf;
 339         char **keymap;
 340         int r;
 341
 342         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 343         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 344                 return 0;
 345
 346         if (arg_copy_keymap && arg_root) {
 347
 348                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 349                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 350                 if (r != -ENOENT) {
 351                         if (r < 0)
 352                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 353
 354                         log_info("%s copied.", etc_vconsoleconf);
 355                         return 0;
 356                 }
 357         }
 358
 359         r = prompt_keymap();
 360         if (r == -ENOENT)
 361                 return 0; /* don't fail if no keymaps are installed */
 362         if (r < 0)
 363                 return r;
 364
 365         if (isempty(arg_keymap))
 366                 return 0;
 367
 368         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 369
 370         r = mkdir_parents(etc_vconsoleconf, 0755);
 371         if (r < 0)
 372                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 373
 374         r = write_env_file(etc_vconsoleconf, keymap);
 375         if (r < 0)
 376                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 377
 378         log_info("%s written.", etc_vconsoleconf);
 379         return 0;
 380 }
 381
 382 static bool timezone_is_valid_log_error(const char *name) {
 383         return timezone_is_valid(name, LOG_ERR);
 384 }
 385
 386 static int prompt_timezone(void) {
 387         _cleanup_strv_free_ char **zones = NULL;
 388         int r;
 389
 390         if (arg_timezone)
 391                 return 0;
 392
 393         if (!arg_prompt_timezone)
 394                 return 0;
 395
 396         r = get_timezones(&zones);
 397         if (r < 0)
 398                 return log_error_errno(r, "Cannot query timezone list: %m");
 399
 400         print_welcome();
 401
 402         r = prompt_loop("Please enter timezone name or number",
 403                         zones, 30, timezone_is_valid_log_error, &arg_timezone);
 404         if (r < 0)
 405                 return r;
 406
 407         return 0;
 408 }
 409
 410 static int process_timezone(void) {
 411         const char *etc_localtime, *e;
 412         int r;
 413
 414         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 415         if (laccess(etc_localtime, F_OK) >= 0)
 416                 return 0;
 417
 418         if (arg_copy_timezone && arg_root) {
 419                 _cleanup_free_ char *p = NULL;
 420
 421                 r = readlink_malloc("/etc/localtime", &p);
 422                 if (r != -ENOENT) {
 423                         if (r < 0)
 424                                 return log_error_errno(r, "Failed to read host timezone: %m");
 425
 426                         (void) mkdir_parents(etc_localtime, 0755);
 427                         if (symlink(p, etc_localtime) < 0)
 428                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 429
 430                         log_info("%s copied.", etc_localtime);
 431                         return 0;
 432                 }
 433         }
 434
 435         r = prompt_timezone();
 436         if (r < 0)
 437                 return r;
 438
 439         if (isempty(arg_timezone))
 440                 return 0;
 441
 442         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 443
 444         (void) mkdir_parents(etc_localtime, 0755);
 445         if (symlink(e, etc_localtime) < 0)
 446                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 447
 448         log_info("%s written", etc_localtime);
 449         return 0;
 450 }
 451
 452 static int prompt_hostname(void) {
 453         int r;
 454
 455         if (arg_hostname)
 456                 return 0;
 457
 458         if (!arg_prompt_hostname)
 459                 return 0;
 460
 461         print_welcome();
 462         putchar('\n');
 463
 464         for (;;) {
 465                 _cleanup_free_ char *h = NULL;
 466
 467                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 468                 if (r < 0)
 469                         return log_error_errno(r, "Failed to query hostname: %m");
 470
 471                 if (isempty(h)) {
 472                         log_warning("No hostname entered, skipping.");
 473                         break;
 474                 }
 475
 476                 if (!hostname_is_valid(h, true)) {
 477                         log_error("Specified hostname invalid.");
 478                         continue;
 479                 }
 480
 481                 /* Get rid of the trailing dot that we allow, but don't want to see */
 482                 arg_hostname = hostname_cleanup(h);
 483                 h = NULL;
 484                 break;
 485         }
 486
 487         return 0;
 488 }
 489
 490 static int process_hostname(void) {
 491         const char *etc_hostname;
 492         int r;
 493
 494         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 495         if (laccess(etc_hostname, F_OK) >= 0)
 496                 return 0;
 497
 498         r = prompt_hostname();
 499         if (r < 0)
 500                 return r;
 501
 502         if (isempty(arg_hostname))
 503                 return 0;
 504
 505         r = write_string_file(etc_hostname, arg_hostname,
 506                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 507         if (r < 0)
 508                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 509
 510         log_info("%s written.", etc_hostname);
 511         return 0;
 512 }
 513
 514 static int process_machine_id(void) {
 515         const char *etc_machine_id;
 516         char id[SD_ID128_STRING_MAX];
 517         int r;
 518
 519         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 520         if (laccess(etc_machine_id, F_OK) >= 0)
 521                 return 0;
 522
 523         if (sd_id128_is_null(arg_machine_id))
 524                 return 0;
 525
 526         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 527                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 528         if (r < 0)
 529                 return log_error_errno(r, "Failed to write machine id: %m");
 530
 531         log_info("%s written.", etc_machine_id);
 532         return 0;
 533 }
 534
 535 static int prompt_root_password(void) {
 536         const char *msg1, *msg2, *etc_shadow;
 537         int r;
 538
 539         if (arg_root_password)
 540                 return 0;
 541
 542         if (!arg_prompt_root_password)
 543                 return 0;
 544
 545         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 546         if (laccess(etc_shadow, F_OK) >= 0)
 547                 return 0;
 548
 549         print_welcome();
 550         putchar('\n');
 551
 552         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip):");
 553         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again:");
 554
 555         for (;;) {
 556                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 557
 558                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 559                 if (r < 0)
 560                         return log_error_errno(r, "Failed to query root password: %m");
 561                 if (strv_length(a) != 1)
 562                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 563                                                "Received multiple passwords, where we expected one.");
 564
 565                 if (isempty(*a)) {
 566                         log_warning("No password entered, skipping.");
 567                         break;
 568                 }
 569
 570                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 571                 if (r < 0)
 572                         return log_error_errno(r, "Failed to query root password: %m");
 573                 if (strv_length(b) != 1)
 574                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 575                                                "Received multiple passwords, where we expected one.");
 576
 577                 if (!streq(*a, *b)) {
 578                         log_error("Entered passwords did not match, please try again.");
 579                         continue;
 580                 }
 581
 582                 arg_root_password = TAKE_PTR(*a);
 583                 break;
 584         }
 585
 586         return 0;
 587 }
 588
 589 static int write_root_shadow(const char *path, const struct spwd *p) {
 590         _cleanup_fclose_ FILE *f = NULL;
 591         int r;
 592
 593         assert(path);
 594         assert(p);
 595
 596         RUN_WITH_UMASK(0777)
 597                 f = fopen(path, "wex");
 598         if (!f)
 599                 return -errno;
 600
 601         r = putspent_sane(p, f);
 602         if (r < 0)
 603                 return r;
 604
 605         return fflush_sync_and_check(f);
 606 }
 607
 608 static int process_root_password(void) {
 609
 610         struct spwd item = {
 611                 .sp_namp = (char*) "root",
 612                 .sp_min = -1,
 613                 .sp_max = -1,
 614                 .sp_warn = -1,
 615                 .sp_inact = -1,
 616                 .sp_expire = -1,
 617                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 618         };
 619         _cleanup_free_ char *salt = NULL;
 620         _cleanup_close_ int lock = -1;
 621         struct crypt_data cd = {};
 622
 623         const char *etc_shadow;
 624         int r;
 625
 626         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 627         if (laccess(etc_shadow, F_OK) >= 0)
 628                 return 0;
 629
 630         (void) mkdir_parents(etc_shadow, 0755);
 631
 632         lock = take_etc_passwd_lock(arg_root);
 633         if (lock < 0)
 634                 return log_error_errno(lock, "Failed to take a lock: %m");
 635
 636         if (arg_copy_root_password && arg_root) {
 637                 struct spwd *p;
 638
 639                 errno = 0;
 640                 p = getspnam("root");
 641                 if (p || errno != ENOENT) {
 642                         if (!p) {
 643                                 if (!errno)
 644                                         errno = EIO;
 645
 646                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 647                         }
 648
 649                         r = write_root_shadow(etc_shadow, p);
 650                         if (r < 0)
 651                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 652
 653                         log_info("%s copied.", etc_shadow);
 654                         return 0;
 655                 }
 656         }
 657
 658         r = prompt_root_password();
 659         if (r < 0)
 660                 return r;
 661
 662         if (!arg_root_password)
 663                 return 0;
 664
 665         r = make_salt(&salt);
 666         if (r < 0)
 667                 return log_error_errno(r, "Failed to get salt: %m");
 668
 669         errno = 0;
 670         item.sp_pwdp = crypt_r(arg_root_password, salt, &cd);
 671         if (!item.sp_pwdp)
 672                 return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
 673                                        "Failed to encrypt password: %m");
 674
 675         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 676
 677         r = write_root_shadow(etc_shadow, &item);
 678         if (r < 0)
 679                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 680
 681         log_info("%s written.", etc_shadow);
 682         return 0;
 683 }
 684
 685 static int help(void) {
 686         _cleanup_free_ char *link = NULL;
 687         int r;
 688
 689         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 690         if (r < 0)
 691                 return log_oom();
 692
 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 hostname\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                "\nSee the %s for details.\n"
 719                , program_invocation_short_name
 720                , link
 721         );
 722
 723         return 0;
 724 }
 725
 726 static int parse_argv(int argc, char *argv[]) {
 727
 728         enum {
 729                 ARG_VERSION = 0x100,
 730                 ARG_ROOT,
 731                 ARG_LOCALE,
 732                 ARG_LOCALE_MESSAGES,
 733                 ARG_KEYMAP,
 734                 ARG_TIMEZONE,
 735                 ARG_HOSTNAME,
 736                 ARG_MACHINE_ID,
 737                 ARG_ROOT_PASSWORD,
 738                 ARG_ROOT_PASSWORD_FILE,
 739                 ARG_PROMPT,
 740                 ARG_PROMPT_LOCALE,
 741                 ARG_PROMPT_KEYMAP,
 742                 ARG_PROMPT_TIMEZONE,
 743                 ARG_PROMPT_HOSTNAME,
 744                 ARG_PROMPT_ROOT_PASSWORD,
 745                 ARG_COPY,
 746                 ARG_COPY_LOCALE,
 747                 ARG_COPY_KEYMAP,
 748                 ARG_COPY_TIMEZONE,
 749                 ARG_COPY_ROOT_PASSWORD,
 750                 ARG_SETUP_MACHINE_ID,
 751         };
 752
 753         static const struct option options[] = {
 754                 { "help",                 no_argument,       NULL, 'h'                      },
 755                 { "version",              no_argument,       NULL, ARG_VERSION              },
 756                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 757                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 758                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 759                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 760                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 761                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 762                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 763                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 764                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 765                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 766                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 767                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 768                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 769                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 770                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 771                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 772                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 773                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 774                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 775                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 776                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 777                 {}
 778         };
 779
 780         int r, c;
 781
 782         assert(argc >= 0);
 783         assert(argv);
 784
 785         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 786
 787                 switch (c) {
 788
 789                 case 'h':
 790                         return help();
 791
 792                 case ARG_VERSION:
 793                         return version();
 794
 795                 case ARG_ROOT:
 796                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 797                         if (r < 0)
 798                                 return r;
 799                         break;
 800
 801                 case ARG_LOCALE:
 802                         r = free_and_strdup(&arg_locale, optarg);
 803                         if (r < 0)
 804                                 return log_oom();
 805
 806                         break;
 807
 808                 case ARG_LOCALE_MESSAGES:
 809                         r = free_and_strdup(&arg_locale_messages, optarg);
 810                         if (r < 0)
 811                                 return log_oom();
 812
 813                         break;
 814
 815                 case ARG_KEYMAP:
 816                         if (!keymap_is_valid(optarg))
 817                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 818                                                        "Keymap %s is not valid.", optarg);
 819
 820                         r = free_and_strdup(&arg_keymap, optarg);
 821                         if (r < 0)
 822                                 return log_oom();
 823
 824                         break;
 825
 826                 case ARG_TIMEZONE:
 827                         if (!timezone_is_valid(optarg, LOG_ERR))
 828                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 829                                                        "Timezone %s is not valid.", optarg);
 830
 831                         r = free_and_strdup(&arg_timezone, optarg);
 832                         if (r < 0)
 833                                 return log_oom();
 834
 835                         break;
 836
 837                 case ARG_ROOT_PASSWORD:
 838                         r = free_and_strdup(&arg_root_password, optarg);
 839                         if (r < 0)
 840                                 return log_oom();
 841                         break;
 842
 843                 case ARG_ROOT_PASSWORD_FILE:
 844                         arg_root_password = mfree(arg_root_password);
 845
 846                         r = read_one_line_file(optarg, &arg_root_password);
 847                         if (r < 0)
 848                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 849
 850                         break;
 851
 852                 case ARG_HOSTNAME:
 853                         if (!hostname_is_valid(optarg, true))
 854                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 855                                                        "Host name %s is not valid.", optarg);
 856
 857                         hostname_cleanup(optarg);
 858                         r = free_and_strdup(&arg_hostname, optarg);
 859                         if (r < 0)
 860                                 return log_oom();
 861
 862                         break;
 863
 864                 case ARG_MACHINE_ID:
 865                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
 866                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 867                                                        "Failed to parse machine id %s.", optarg);
 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         /* We check if the specified locale strings are valid down here, so that we can take --root= into
 931          * account when looking for the locale files. */
 932
 933         if (arg_locale && !locale_is_ok(arg_locale))
 934                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale);
 935         if (arg_locale_messages && !locale_is_ok(arg_locale_messages))
 936                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages);
 937
 938         return 1;
 939 }
 940
 941 static int run(int argc, char *argv[]) {
 942         bool enabled;
 943         int r;
 944
 945         r = parse_argv(argc, argv);
 946         if (r <= 0)
 947                 return r;
 948
 949         log_setup_service();
 950
 951         umask(0022);
 952
 953         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 954         if (r < 0)
 955                 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
 956         if (r > 0 && !enabled)
 957                 return 0; /* disabled */
 958
 959         r = process_locale();
 960         if (r < 0)
 961                 return r;
 962
 963         r = process_keymap();
 964         if (r < 0)
 965                 return r;
 966
 967         r = process_timezone();
 968         if (r < 0)
 969                 return r;
 970
 971         r = process_hostname();
 972         if (r < 0)
 973                 return r;
 974
 975         r = process_machine_id();
 976         if (r < 0)
 977                 return r;
 978
 979         r = process_root_password();
 980         if (r < 0)
 981                 return r;
 982
 983         return 0;
 984 }
 985
 986 DEFINE_MAIN_FUNCTION(run);