src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <fcntl.h>
   4 #include <getopt.h>
   5 #include <unistd.h>
   6
   7 #if HAVE_CRYPT_H
   8 /* libxcrypt is a replacement for glibc's libcrypt, and libcrypt might be
   9  * removed from glibc at some point. As part of the removal, defines for
  10  * crypt(3) are dropped from unistd.h, and we must include crypt.h instead.
  11  *
  12  * Newer versions of glibc (v2.0+) already ship crypt.h with a definition
  13  * of crypt(3) as well, so we simply include it if it is present.  MariaDB,
  14  * MySQL, PostgreSQL, Perl and some other wide-spread packages do it the
  15  * same way since ages without any problems.
  16  */
  17 #  include <crypt.h>
  18 #endif
  19
  20 #include "sd-id128.h"
  21
  22 #include "alloc-util.h"
  23 #include "ask-password-api.h"
  24 #include "copy.h"
  25 #include "env-file.h"
  26 #include "fd-util.h"
  27 #include "fileio.h"
  28 #include "fs-util.h"
  29 #include "hostname-util.h"
  30 #include "kbd-util.h"
  31 #include "locale-util.h"
  32 #include "main-func.h"
  33 #include "memory-util.h"
  34 #include "mkdir.h"
  35 #include "os-util.h"
  36 #include "parse-util.h"
  37 #include "path-util.h"
  38 #include "pretty-print.h"
  39 #include "proc-cmdline.h"
  40 #include "random-util.h"
  41 #include "string-util.h"
  42 #include "strv.h"
  43 #include "terminal-util.h"
  44 #include "time-util.h"
  45 #include "umask-util.h"
  46 #include "user-util.h"
  47
  48 static char *arg_root = NULL;
  49 static char *arg_locale = NULL;  /* $LANG */
  50 static char *arg_keymap = NULL;
  51 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  52 static char *arg_timezone = NULL;
  53 static char *arg_hostname = NULL;
  54 static sd_id128_t arg_machine_id = {};
  55 static char *arg_root_password = NULL;
  56 static bool arg_prompt_locale = false;
  57 static bool arg_prompt_keymap = false;
  58 static bool arg_prompt_timezone = false;
  59 static bool arg_prompt_hostname = false;
  60 static bool arg_prompt_root_password = false;
  61 static bool arg_copy_locale = false;
  62 static bool arg_copy_keymap = false;
  63 static bool arg_copy_timezone = false;
  64 static bool arg_copy_root_password = false;
  65
  66 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
  67 STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
  68 STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
  69 STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
  70 STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
  71 STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
  72 STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
  73
  74 static bool press_any_key(void) {
  75         char k = 0;
  76         bool need_nl = true;
  77
  78         printf("-- Press any key to proceed --");
  79         fflush(stdout);
  80
  81         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  82
  83         if (need_nl)
  84                 putchar('\n');
  85
  86         return k != 'q';
  87 }
  88
  89 static void print_welcome(void) {
  90         _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
  91         static bool done = false;
  92         const char *pn;
  93         int r;
  94
  95         if (done)
  96                 return;
  97
  98         r = parse_os_release(
  99                         arg_root,
 100                         "PRETTY_NAME", &pretty_name,
 101                         "ANSI_COLOR", &ansi_color,
 102                         NULL);
 103         if (r < 0)
 104                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
 105                                "Failed to read os-release file, ignoring: %m");
 106
 107         pn = isempty(pretty_name) ? "Linux" : pretty_name;
 108
 109         if (colors_enabled())
 110                 printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ansi_color, pn);
 111         else
 112                 printf("\nWelcome to your new installation of %s!\n", pn);
 113
 114         printf("\nPlease configure your system!\n\n");
 115
 116         press_any_key();
 117
 118         done = true;
 119 }
 120
 121 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 122         unsigned break_lines, break_modulo;
 123         size_t n, per_column, i, j;
 124
 125         assert(n_columns > 0);
 126
 127         n = strv_length(x);
 128         per_column = DIV_ROUND_UP(n, n_columns);
 129
 130         break_lines = lines();
 131         if (break_lines > 2)
 132                 break_lines--;
 133
 134         /* The first page gets two extra lines, since we want to show
 135          * a title */
 136         break_modulo = break_lines;
 137         if (break_modulo > 3)
 138                 break_modulo -= 3;
 139
 140         for (i = 0; i < per_column; i++) {
 141
 142                 for (j = 0; j < n_columns; j ++) {
 143                         _cleanup_free_ char *e = NULL;
 144
 145                         if (j * per_column + i >= n)
 146                                 break;
 147
 148                         e = ellipsize(x[j * per_column + i], width, percentage);
 149                         if (!e)
 150                                 return log_oom();
 151
 152                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 153                 }
 154
 155                 putchar('\n');
 156
 157                 /* on the first screen we reserve 2 extra lines for the title */
 158                 if (i % break_lines == break_modulo) {
 159                         if (!press_any_key())
 160                                 return 0;
 161                 }
 162         }
 163
 164         return 0;
 165 }
 166
 167 static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
 168         int r;
 169
 170         assert(text);
 171         assert(is_valid);
 172         assert(ret);
 173
 174         for (;;) {
 175                 _cleanup_free_ char *p = NULL;
 176                 unsigned u;
 177
 178                 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 179                 if (r < 0)
 180                         return log_error_errno(r, "Failed to query user: %m");
 181
 182                 if (isempty(p)) {
 183                         log_warning("No data entered, skipping.");
 184                         return 0;
 185                 }
 186
 187                 r = safe_atou(p, &u);
 188                 if (r >= 0) {
 189                         if (u <= 0 || u > strv_length(l)) {
 190                                 log_error("Specified entry number out of range.");
 191                                 continue;
 192                         }
 193
 194                         log_info("Selected '%s'.", l[u-1]);
 195                         if (free_and_strdup(ret, l[u-1]) < 0)
 196                                 return log_oom();
 197
 198                         return 0;
 199                 }
 200
 201                 if (!is_valid(p)) {
 202                         log_error("Entered data invalid.");
 203                         continue;
 204                 }
 205
 206                 return free_and_replace(*ret, p);
 207         }
 208 }
 209
 210 static int prompt_locale(void) {
 211         _cleanup_strv_free_ char **locales = NULL;
 212         int r;
 213
 214         if (arg_locale || arg_locale_messages)
 215                 return 0;
 216
 217         if (!arg_prompt_locale)
 218                 return 0;
 219
 220         r = get_locales(&locales);
 221         if (r < 0)
 222                 return log_error_errno(r, "Cannot query locales list: %m");
 223
 224         if (strv_isempty(locales))
 225                 log_debug("No locales found, skipping locale selection.");
 226         else if (strv_length(locales) == 1) {
 227
 228                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 229                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 230                 else {
 231                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 232
 233                         arg_locale = strdup(locales[0]);
 234                         if (!arg_locale)
 235                                 return log_oom();
 236
 237                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 238                 }
 239         } else {
 240                 print_welcome();
 241
 242                 printf("\nAvailable Locales:\n\n");
 243                 r = show_menu(locales, 3, 22, 60);
 244                 if (r < 0)
 245                         return r;
 246
 247                 putchar('\n');
 248
 249                 r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &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", locales, locale_is_valid, &arg_locale_messages);
 257                 if (r < 0)
 258                         return r;
 259
 260                 /* Suppress the messages setting if it's the same as the main locale anyway */
 261                 if (streq_ptr(arg_locale, arg_locale_messages))
 262                         arg_locale_messages = mfree(arg_locale_messages);
 263         }
 264
 265         return 0;
 266 }
 267
 268 static int process_locale(void) {
 269         const char *etc_localeconf;
 270         char* locales[3];
 271         unsigned i = 0;
 272         int r;
 273
 274         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 275         if (laccess(etc_localeconf, F_OK) >= 0)
 276                 return 0;
 277
 278         if (arg_copy_locale && arg_root) {
 279
 280                 (void) mkdir_parents(etc_localeconf, 0755);
 281                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 282                 if (r != -ENOENT) {
 283                         if (r < 0)
 284                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 285
 286                         log_info("%s copied.", etc_localeconf);
 287                         return 0;
 288                 }
 289         }
 290
 291         r = prompt_locale();
 292         if (r < 0)
 293                 return r;
 294
 295         if (!isempty(arg_locale))
 296                 locales[i++] = strjoina("LANG=", arg_locale);
 297         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 298                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 299
 300         if (i == 0)
 301                 return 0;
 302
 303         locales[i] = NULL;
 304
 305         (void) mkdir_parents(etc_localeconf, 0755);
 306         r = write_env_file(etc_localeconf, locales);
 307         if (r < 0)
 308                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 309
 310         log_info("%s written.", etc_localeconf);
 311         return 0;
 312 }
 313
 314 static int prompt_keymap(void) {
 315         _cleanup_strv_free_ char **kmaps = NULL;
 316         int r;
 317
 318         if (arg_keymap)
 319                 return 0;
 320
 321         if (!arg_prompt_keymap)
 322                 return 0;
 323
 324         r = get_keymaps(&kmaps);
 325         if (r == -ENOENT) /* no keymaps installed */
 326                 return r;
 327         if (r < 0)
 328                 return log_error_errno(r, "Failed to read keymaps: %m");
 329
 330         print_welcome();
 331
 332         printf("\nAvailable keymaps:\n\n");
 333         r = show_menu(kmaps, 3, 22, 60);
 334         if (r < 0)
 335                 return r;
 336
 337         putchar('\n');
 338
 339         return prompt_loop("Please enter system keymap name or number",
 340                            kmaps, keymap_is_valid, &arg_keymap);
 341 }
 342
 343 static int process_keymap(void) {
 344         const char *etc_vconsoleconf;
 345         char **keymap;
 346         int r;
 347
 348         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 349         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 350                 return 0;
 351
 352         if (arg_copy_keymap && arg_root) {
 353
 354                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 355                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 356                 if (r != -ENOENT) {
 357                         if (r < 0)
 358                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 359
 360                         log_info("%s copied.", etc_vconsoleconf);
 361                         return 0;
 362                 }
 363         }
 364
 365         r = prompt_keymap();
 366         if (r == -ENOENT)
 367                 return 0; /* don't fail if no keymaps are installed */
 368         if (r < 0)
 369                 return r;
 370
 371         if (isempty(arg_keymap))
 372                 return 0;
 373
 374         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 375
 376         r = mkdir_parents(etc_vconsoleconf, 0755);
 377         if (r < 0)
 378                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 379
 380         r = write_env_file(etc_vconsoleconf, keymap);
 381         if (r < 0)
 382                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 383
 384         log_info("%s written.", etc_vconsoleconf);
 385         return 0;
 386 }
 387
 388 static bool timezone_is_valid_log_error(const char *name) {
 389         return timezone_is_valid(name, LOG_ERR);
 390 }
 391
 392 static int prompt_timezone(void) {
 393         _cleanup_strv_free_ char **zones = NULL;
 394         int r;
 395
 396         if (arg_timezone)
 397                 return 0;
 398
 399         if (!arg_prompt_timezone)
 400                 return 0;
 401
 402         r = get_timezones(&zones);
 403         if (r < 0)
 404                 return log_error_errno(r, "Cannot query timezone list: %m");
 405
 406         print_welcome();
 407
 408         printf("\nAvailable Time Zones:\n\n");
 409         r = show_menu(zones, 3, 22, 30);
 410         if (r < 0)
 411                 return r;
 412
 413         putchar('\n');
 414
 415         r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
 416         if (r < 0)
 417                 return r;
 418
 419         return 0;
 420 }
 421
 422 static int process_timezone(void) {
 423         const char *etc_localtime, *e;
 424         int r;
 425
 426         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 427         if (laccess(etc_localtime, F_OK) >= 0)
 428                 return 0;
 429
 430         if (arg_copy_timezone && arg_root) {
 431                 _cleanup_free_ char *p = NULL;
 432
 433                 r = readlink_malloc("/etc/localtime", &p);
 434                 if (r != -ENOENT) {
 435                         if (r < 0)
 436                                 return log_error_errno(r, "Failed to read host timezone: %m");
 437
 438                         (void) mkdir_parents(etc_localtime, 0755);
 439                         if (symlink(p, etc_localtime) < 0)
 440                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 441
 442                         log_info("%s copied.", etc_localtime);
 443                         return 0;
 444                 }
 445         }
 446
 447         r = prompt_timezone();
 448         if (r < 0)
 449                 return r;
 450
 451         if (isempty(arg_timezone))
 452                 return 0;
 453
 454         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 455
 456         (void) mkdir_parents(etc_localtime, 0755);
 457         if (symlink(e, etc_localtime) < 0)
 458                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 459
 460         log_info("%s written", etc_localtime);
 461         return 0;
 462 }
 463
 464 static int prompt_hostname(void) {
 465         int r;
 466
 467         if (arg_hostname)
 468                 return 0;
 469
 470         if (!arg_prompt_hostname)
 471                 return 0;
 472
 473         print_welcome();
 474         putchar('\n');
 475
 476         for (;;) {
 477                 _cleanup_free_ char *h = NULL;
 478
 479                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 480                 if (r < 0)
 481                         return log_error_errno(r, "Failed to query hostname: %m");
 482
 483                 if (isempty(h)) {
 484                         log_warning("No hostname entered, skipping.");
 485                         break;
 486                 }
 487
 488                 if (!hostname_is_valid(h, true)) {
 489                         log_error("Specified hostname invalid.");
 490                         continue;
 491                 }
 492
 493                 /* Get rid of the trailing dot that we allow, but don't want to see */
 494                 arg_hostname = hostname_cleanup(h);
 495                 h = NULL;
 496                 break;
 497         }
 498
 499         return 0;
 500 }
 501
 502 static int process_hostname(void) {
 503         const char *etc_hostname;
 504         int r;
 505
 506         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 507         if (laccess(etc_hostname, F_OK) >= 0)
 508                 return 0;
 509
 510         r = prompt_hostname();
 511         if (r < 0)
 512                 return r;
 513
 514         if (isempty(arg_hostname))
 515                 return 0;
 516
 517         r = write_string_file(etc_hostname, arg_hostname,
 518                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 519         if (r < 0)
 520                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 521
 522         log_info("%s written.", etc_hostname);
 523         return 0;
 524 }
 525
 526 static int process_machine_id(void) {
 527         const char *etc_machine_id;
 528         char id[SD_ID128_STRING_MAX];
 529         int r;
 530
 531         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 532         if (laccess(etc_machine_id, F_OK) >= 0)
 533                 return 0;
 534
 535         if (sd_id128_is_null(arg_machine_id))
 536                 return 0;
 537
 538         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 539                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 540         if (r < 0)
 541                 return log_error_errno(r, "Failed to write machine id: %m");
 542
 543         log_info("%s written.", etc_machine_id);
 544         return 0;
 545 }
 546
 547 static int prompt_root_password(void) {
 548         const char *msg1, *msg2, *etc_shadow;
 549         int r;
 550
 551         if (arg_root_password)
 552                 return 0;
 553
 554         if (!arg_prompt_root_password)
 555                 return 0;
 556
 557         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 558         if (laccess(etc_shadow, F_OK) >= 0)
 559                 return 0;
 560
 561         print_welcome();
 562         putchar('\n');
 563
 564         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 565         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again: ");
 566
 567         for (;;) {
 568                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 569
 570                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 571                 if (r < 0)
 572                         return log_error_errno(r, "Failed to query root password: %m");
 573                 if (strv_length(a) != 1) {
 574                         log_warning("Received multiple passwords, where we expected one.");
 575                         return -EINVAL;
 576                 }
 577
 578                 if (isempty(*a)) {
 579                         log_warning("No password entered, skipping.");
 580                         break;
 581                 }
 582
 583                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 584                 if (r < 0)
 585                         return log_error_errno(r, "Failed to query root password: %m");
 586
 587                 if (!streq(*a, *b)) {
 588                         log_error("Entered passwords did not match, please try again.");
 589                         continue;
 590                 }
 591
 592                 arg_root_password = TAKE_PTR(*a);
 593                 break;
 594         }
 595
 596         return 0;
 597 }
 598
 599 static int write_root_shadow(const char *path, const struct spwd *p) {
 600         _cleanup_fclose_ FILE *f = NULL;
 601         int r;
 602
 603         assert(path);
 604         assert(p);
 605
 606         RUN_WITH_UMASK(0777)
 607                 f = fopen(path, "wex");
 608         if (!f)
 609                 return -errno;
 610
 611         r = putspent_sane(p, f);
 612         if (r < 0)
 613                 return r;
 614
 615         return fflush_sync_and_check(f);
 616 }
 617
 618 static int process_root_password(void) {
 619
 620         struct spwd item = {
 621                 .sp_namp = (char*) "root",
 622                 .sp_min = -1,
 623                 .sp_max = -1,
 624                 .sp_warn = -1,
 625                 .sp_inact = -1,
 626                 .sp_expire = -1,
 627                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 628         };
 629         _cleanup_free_ char *salt = NULL;
 630         _cleanup_close_ int lock = -1;
 631         struct crypt_data cd = {};
 632
 633         const char *etc_shadow;
 634         int r;
 635
 636         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 637         if (laccess(etc_shadow, F_OK) >= 0)
 638                 return 0;
 639
 640         (void) mkdir_parents(etc_shadow, 0755);
 641
 642         lock = take_etc_passwd_lock(arg_root);
 643         if (lock < 0)
 644                 return log_error_errno(lock, "Failed to take a lock: %m");
 645
 646         if (arg_copy_root_password && arg_root) {
 647                 struct spwd *p;
 648
 649                 errno = 0;
 650                 p = getspnam("root");
 651                 if (p || errno != ENOENT) {
 652                         if (!p) {
 653                                 if (!errno)
 654                                         errno = EIO;
 655
 656                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 657                         }
 658
 659                         r = write_root_shadow(etc_shadow, p);
 660                         if (r < 0)
 661                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 662
 663                         log_info("%s copied.", etc_shadow);
 664                         return 0;
 665                 }
 666         }
 667
 668         r = prompt_root_password();
 669         if (r < 0)
 670                 return r;
 671
 672         if (!arg_root_password)
 673                 return 0;
 674
 675         r = make_salt(&salt);
 676         if (r < 0)
 677                 return log_error_errno(r, "Failed to get salt: %m");
 678
 679         errno = 0;
 680         item.sp_pwdp = crypt_r(arg_root_password, salt, &cd);
 681         if (!item.sp_pwdp)
 682                 return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
 683                                        "Failed to encrypt password: %m");
 684
 685         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 686
 687         r = write_root_shadow(etc_shadow, &item);
 688         if (r < 0)
 689                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 690
 691         log_info("%s written.", etc_shadow);
 692         return 0;
 693 }
 694
 695 static int help(void) {
 696         _cleanup_free_ char *link = NULL;
 697         int r;
 698
 699         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 700         if (r < 0)
 701                 return log_oom();
 702
 703         printf("%s [OPTIONS...]\n\n"
 704                "Configures basic settings of the system.\n\n"
 705                "  -h --help                    Show this help\n"
 706                "     --version                 Show package version\n"
 707                "     --root=PATH               Operate on an alternate filesystem root\n"
 708                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 709                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 710                "     --keymap=KEYMAP           Set keymap\n"
 711                "     --timezone=TIMEZONE       Set timezone\n"
 712                "     --hostname=NAME           Set host name\n"
 713                "     --machine-ID=ID           Set machine ID\n"
 714                "     --root-password=PASSWORD  Set root password\n"
 715                "     --root-password-file=FILE Set root password from file\n"
 716                "     --prompt-locale           Prompt the user for locale settings\n"
 717                "     --prompt-keymap           Prompt the user for keymap settings\n"
 718                "     --prompt-timezone         Prompt the user for timezone\n"
 719                "     --prompt-hostname         Prompt the user for hostname\n"
 720                "     --prompt-root-password    Prompt the user for root password\n"
 721                "     --prompt                  Prompt for all of the above\n"
 722                "     --copy-locale             Copy locale from host\n"
 723                "     --copy-keymap             Copy keymap from host\n"
 724                "     --copy-timezone           Copy timezone from host\n"
 725                "     --copy-root-password      Copy root password from host\n"
 726                "     --copy                    Copy locale, keymap, timezone, root password\n"
 727                "     --setup-machine-id        Generate a new random machine ID\n"
 728                "\nSee the %s for details.\n"
 729                , program_invocation_short_name
 730                , link
 731         );
 732
 733         return 0;
 734 }
 735
 736 static int parse_argv(int argc, char *argv[]) {
 737
 738         enum {
 739                 ARG_VERSION = 0x100,
 740                 ARG_ROOT,
 741                 ARG_LOCALE,
 742                 ARG_LOCALE_MESSAGES,
 743                 ARG_KEYMAP,
 744                 ARG_TIMEZONE,
 745                 ARG_HOSTNAME,
 746                 ARG_MACHINE_ID,
 747                 ARG_ROOT_PASSWORD,
 748                 ARG_ROOT_PASSWORD_FILE,
 749                 ARG_PROMPT,
 750                 ARG_PROMPT_LOCALE,
 751                 ARG_PROMPT_KEYMAP,
 752                 ARG_PROMPT_TIMEZONE,
 753                 ARG_PROMPT_HOSTNAME,
 754                 ARG_PROMPT_ROOT_PASSWORD,
 755                 ARG_COPY,
 756                 ARG_COPY_LOCALE,
 757                 ARG_COPY_KEYMAP,
 758                 ARG_COPY_TIMEZONE,
 759                 ARG_COPY_ROOT_PASSWORD,
 760                 ARG_SETUP_MACHINE_ID,
 761         };
 762
 763         static const struct option options[] = {
 764                 { "help",                 no_argument,       NULL, 'h'                      },
 765                 { "version",              no_argument,       NULL, ARG_VERSION              },
 766                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 767                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 768                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 769                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 770                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 771                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 772                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 773                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 774                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 775                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 776                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 777                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 778                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 779                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 780                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 781                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 782                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 783                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 784                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 785                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 786                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 787                 {}
 788         };
 789
 790         int r, c;
 791
 792         assert(argc >= 0);
 793         assert(argv);
 794
 795         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 796
 797                 switch (c) {
 798
 799                 case 'h':
 800                         return help();
 801
 802                 case ARG_VERSION:
 803                         return version();
 804
 805                 case ARG_ROOT:
 806                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 807                         if (r < 0)
 808                                 return r;
 809                         break;
 810
 811                 case ARG_LOCALE:
 812                         if (!locale_is_valid(optarg))
 813                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 814                                                        "Locale %s is not valid.", optarg);
 815
 816                         r = free_and_strdup(&arg_locale, optarg);
 817                         if (r < 0)
 818                                 return log_oom();
 819
 820                         break;
 821
 822                 case ARG_LOCALE_MESSAGES:
 823                         if (!locale_is_valid(optarg))
 824                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 825                                                        "Locale %s is not valid.", optarg);
 826
 827                         r = free_and_strdup(&arg_locale_messages, optarg);
 828                         if (r < 0)
 829                                 return log_oom();
 830
 831                         break;
 832
 833                 case ARG_KEYMAP:
 834                         if (!keymap_is_valid(optarg))
 835                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 836                                                        "Keymap %s is not valid.", optarg);
 837
 838                         r = free_and_strdup(&arg_keymap, optarg);
 839                         if (r < 0)
 840                                 return log_oom();
 841
 842                         break;
 843
 844                 case ARG_TIMEZONE:
 845                         if (!timezone_is_valid(optarg, LOG_ERR))
 846                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 847                                                        "Timezone %s is not valid.", optarg);
 848
 849                         r = free_and_strdup(&arg_timezone, optarg);
 850                         if (r < 0)
 851                                 return log_oom();
 852
 853                         break;
 854
 855                 case ARG_ROOT_PASSWORD:
 856                         r = free_and_strdup(&arg_root_password, optarg);
 857                         if (r < 0)
 858                                 return log_oom();
 859                         break;
 860
 861                 case ARG_ROOT_PASSWORD_FILE:
 862                         arg_root_password = mfree(arg_root_password);
 863
 864                         r = read_one_line_file(optarg, &arg_root_password);
 865                         if (r < 0)
 866                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 867
 868                         break;
 869
 870                 case ARG_HOSTNAME:
 871                         if (!hostname_is_valid(optarg, true))
 872                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 873                                                        "Host name %s is not valid.", optarg);
 874
 875                         hostname_cleanup(optarg);
 876                         r = free_and_strdup(&arg_hostname, optarg);
 877                         if (r < 0)
 878                                 return log_oom();
 879
 880                         break;
 881
 882                 case ARG_MACHINE_ID:
 883                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
 884                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 885                                                        "Failed to parse machine id %s.", optarg);
 886
 887                         break;
 888
 889                 case ARG_PROMPT:
 890                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
 891                         break;
 892
 893                 case ARG_PROMPT_LOCALE:
 894                         arg_prompt_locale = true;
 895                         break;
 896
 897                 case ARG_PROMPT_KEYMAP:
 898                         arg_prompt_keymap = true;
 899                         break;
 900
 901                 case ARG_PROMPT_TIMEZONE:
 902                         arg_prompt_timezone = true;
 903                         break;
 904
 905                 case ARG_PROMPT_HOSTNAME:
 906                         arg_prompt_hostname = true;
 907                         break;
 908
 909                 case ARG_PROMPT_ROOT_PASSWORD:
 910                         arg_prompt_root_password = true;
 911                         break;
 912
 913                 case ARG_COPY:
 914                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
 915                         break;
 916
 917                 case ARG_COPY_LOCALE:
 918                         arg_copy_locale = true;
 919                         break;
 920
 921                 case ARG_COPY_KEYMAP:
 922                         arg_copy_keymap = true;
 923                         break;
 924
 925                 case ARG_COPY_TIMEZONE:
 926                         arg_copy_timezone = true;
 927                         break;
 928
 929                 case ARG_COPY_ROOT_PASSWORD:
 930                         arg_copy_root_password = true;
 931                         break;
 932
 933                 case ARG_SETUP_MACHINE_ID:
 934
 935                         r = sd_id128_randomize(&arg_machine_id);
 936                         if (r < 0)
 937                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
 938
 939                         break;
 940
 941                 case '?':
 942                         return -EINVAL;
 943
 944                 default:
 945                         assert_not_reached("Unhandled option");
 946                 }
 947
 948         return 1;
 949 }
 950
 951 static int run(int argc, char *argv[]) {
 952         bool enabled;
 953         int r;
 954
 955         r = parse_argv(argc, argv);
 956         if (r <= 0)
 957                 return r;
 958
 959         log_setup_service();
 960
 961         umask(0022);
 962
 963         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 964         if (r < 0)
 965                 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
 966         if (r > 0 && !enabled)
 967                 return 0; /* disabled */
 968
 969         r = process_locale();
 970         if (r < 0)
 971                 return r;
 972
 973         r = process_keymap();
 974         if (r < 0)
 975                 return r;
 976
 977         r = process_timezone();
 978         if (r < 0)
 979                 return r;
 980
 981         r = process_hostname();
 982         if (r < 0)
 983                 return r;
 984
 985         r = process_machine_id();
 986         if (r < 0)
 987                 return r;
 988
 989         r = process_root_password();
 990         if (r < 0)
 991                 return r;
 992
 993         return 0;
 994 }
 995
 996 DEFINE_MAIN_FUNCTION(run);