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