src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   Copyright 2014 Lennart Poettering
   4 ***/
   5
   6 #include <fcntl.h>
   7 #include <getopt.h>
   8 #include <unistd.h>
   9
  10 #ifdef HAVE_CRYPT_H
  11 /* libxcrypt is a replacement for glibc's libcrypt, and libcrypt might be
  12  * removed from glibc at some point. As part of the removal, defines for
  13  * crypt(3) are dropped from unistd.h, and we must include crypt.h instead.
  14  *
  15  * Newer versions of glibc (v2.0+) already ship crypt.h with a definition
  16  * of crypt(3) as well, so we simply include it if it is present.  MariaDB,
  17  * MySQL, PostgreSQL, Perl and some other wide-spread packages do it the
  18  * same way since ages without any problems.
  19  */
  20 #  include <crypt.h>
  21 #endif
  22
  23 #include "sd-id128.h"
  24
  25 #include "alloc-util.h"
  26 #include "ask-password-api.h"
  27 #include "copy.h"
  28 #include "fd-util.h"
  29 #include "fileio.h"
  30 #include "fs-util.h"
  31 #include "hostname-util.h"
  32 #include "locale-util.h"
  33 #include "mkdir.h"
  34 #include "os-util.h"
  35 #include "parse-util.h"
  36 #include "path-util.h"
  37 #include "proc-cmdline.h"
  38 #include "random-util.h"
  39 #include "string-util.h"
  40 #include "strv.h"
  41 #include "terminal-util.h"
  42 #include "time-util.h"
  43 #include "umask-util.h"
  44 #include "user-util.h"
  45
  46 static char *arg_root = NULL;
  47 static char *arg_locale = NULL;  /* $LANG */
  48 static char *arg_keymap = NULL;
  49 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  50 static char *arg_timezone = NULL;
  51 static char *arg_hostname = NULL;
  52 static sd_id128_t arg_machine_id = {};
  53 static char *arg_root_password = NULL;
  54 static bool arg_prompt_locale = false;
  55 static bool arg_prompt_keymap = false;
  56 static bool arg_prompt_timezone = false;
  57 static bool arg_prompt_hostname = false;
  58 static bool arg_prompt_root_password = false;
  59 static bool arg_copy_locale = false;
  60 static bool arg_copy_keymap = false;
  61 static bool arg_copy_timezone = false;
  62 static bool arg_copy_root_password = false;
  63
  64 static bool press_any_key(void) {
  65         char k = 0;
  66         bool need_nl = true;
  67
  68         printf("-- Press any key to proceed --");
  69         fflush(stdout);
  70
  71         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  72
  73         if (need_nl)
  74                 putchar('\n');
  75
  76         return k != 'q';
  77 }
  78
  79 static void print_welcome(void) {
  80         _cleanup_free_ char *pretty_name = NULL;
  81         static bool done = false;
  82         int r;
  83
  84         if (done)
  85                 return;
  86
  87         r = parse_os_release(arg_root, "PRETTY_NAME", &pretty_name, NULL);
  88         if (r < 0)
  89                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
  90                                "Failed to read os-release file, ignoring: %m");
  91
  92         printf("\nWelcome to your new installation of %s!\nPlease configure a few basic system settings:\n\n",
  93                isempty(pretty_name) ? "Linux" : pretty_name);
  94
  95         press_any_key();
  96
  97         done = true;
  98 }
  99
 100 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 101         unsigned break_lines, break_modulo;
 102         size_t n, per_column, i, j;
 103
 104         assert(n_columns > 0);
 105
 106         n = strv_length(x);
 107         per_column = DIV_ROUND_UP(n, n_columns);
 108
 109         break_lines = lines();
 110         if (break_lines > 2)
 111                 break_lines--;
 112
 113         /* The first page gets two extra lines, since we want to show
 114          * a title */
 115         break_modulo = break_lines;
 116         if (break_modulo > 3)
 117                 break_modulo -= 3;
 118
 119         for (i = 0; i < per_column; i++) {
 120
 121                 for (j = 0; j < n_columns; j ++) {
 122                         _cleanup_free_ char *e = NULL;
 123
 124                         if (j * per_column + i >= n)
 125                                 break;
 126
 127                         e = ellipsize(x[j * per_column + i], width, percentage);
 128                         if (!e)
 129                                 return log_oom();
 130
 131                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 132                 }
 133
 134                 putchar('\n');
 135
 136                 /* on the first screen we reserve 2 extra lines for the title */
 137                 if (i % break_lines == break_modulo) {
 138                         if (!press_any_key())
 139                                 return 0;
 140                 }
 141         }
 142
 143         return 0;
 144 }
 145
 146 static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
 147         int r;
 148
 149         assert(text);
 150         assert(is_valid);
 151         assert(ret);
 152
 153         for (;;) {
 154                 _cleanup_free_ char *p = NULL;
 155                 unsigned u;
 156
 157                 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(TRIANGULAR_BULLET), text);
 158                 if (r < 0)
 159                         return log_error_errno(r, "Failed to query user: %m");
 160
 161                 if (isempty(p)) {
 162                         log_warning("No data entered, skipping.");
 163                         return 0;
 164                 }
 165
 166                 r = safe_atou(p, &u);
 167                 if (r >= 0) {
 168                         char *c;
 169
 170                         if (u <= 0 || u > strv_length(l)) {
 171                                 log_error("Specified entry number out of range.");
 172                                 continue;
 173                         }
 174
 175                         log_info("Selected '%s'.", l[u-1]);
 176
 177                         c = strdup(l[u-1]);
 178                         if (!c)
 179                                 return log_oom();
 180
 181                         free(*ret);
 182                         *ret = c;
 183                         return 0;
 184                 }
 185
 186                 if (!is_valid(p)) {
 187                         log_error("Entered data invalid.");
 188                         continue;
 189                 }
 190
 191                 free(*ret);
 192                 *ret = p;
 193                 p = 0;
 194                 return 0;
 195         }
 196 }
 197
 198 static int prompt_locale(void) {
 199         _cleanup_strv_free_ char **locales = NULL;
 200         int r;
 201
 202         if (arg_locale || arg_locale_messages)
 203                 return 0;
 204
 205         if (!arg_prompt_locale)
 206                 return 0;
 207
 208         r = get_locales(&locales);
 209         if (r < 0)
 210                 return log_error_errno(r, "Cannot query locales list: %m");
 211
 212         print_welcome();
 213
 214         printf("\nAvailable Locales:\n\n");
 215         r = show_menu(locales, 3, 22, 60);
 216         if (r < 0)
 217                 return r;
 218
 219         putchar('\n');
 220
 221         r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale);
 222         if (r < 0)
 223                 return r;
 224
 225         if (isempty(arg_locale))
 226                 return 0;
 227
 228         r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages);
 229         if (r < 0)
 230                 return r;
 231
 232         return 0;
 233 }
 234
 235 static int process_locale(void) {
 236         const char *etc_localeconf;
 237         char* locales[3];
 238         unsigned i = 0;
 239         int r;
 240
 241         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 242         if (laccess(etc_localeconf, F_OK) >= 0)
 243                 return 0;
 244
 245         if (arg_copy_locale && arg_root) {
 246
 247                 mkdir_parents(etc_localeconf, 0755);
 248                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, COPY_REFLINK);
 249                 if (r != -ENOENT) {
 250                         if (r < 0)
 251                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 252
 253                         log_info("%s copied.", etc_localeconf);
 254                         return 0;
 255                 }
 256         }
 257
 258         r = prompt_locale();
 259         if (r < 0)
 260                 return r;
 261
 262         if (!isempty(arg_locale))
 263                 locales[i++] = strjoina("LANG=", arg_locale);
 264         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 265                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 266
 267         if (i == 0)
 268                 return 0;
 269
 270         locales[i] = NULL;
 271
 272         mkdir_parents(etc_localeconf, 0755);
 273         r = write_env_file(etc_localeconf, locales);
 274         if (r < 0)
 275                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 276
 277         log_info("%s written.", etc_localeconf);
 278         return 0;
 279 }
 280
 281 static int prompt_keymap(void) {
 282         _cleanup_strv_free_ char **kmaps = NULL;
 283         int r;
 284
 285         if (arg_keymap)
 286                 return 0;
 287
 288         if (!arg_prompt_keymap)
 289                 return 0;
 290
 291         r = get_keymaps(&kmaps);
 292         if (r == -ENOENT) /* no keymaps installed */
 293                 return r;
 294         if (r < 0)
 295                 return log_error_errno(r, "Failed to read keymaps: %m");
 296
 297         print_welcome();
 298
 299         printf("\nAvailable keymaps:\n\n");
 300         r = show_menu(kmaps, 3, 22, 60);
 301         if (r < 0)
 302                 return r;
 303
 304         putchar('\n');
 305
 306         return prompt_loop("Please enter system keymap name or number",
 307                            kmaps, keymap_is_valid, &arg_keymap);
 308 }
 309
 310 static int process_keymap(void) {
 311         const char *etc_vconsoleconf;
 312         char **keymap;
 313         int r;
 314
 315         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 316         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 317                 return 0;
 318
 319         if (arg_copy_keymap && arg_root) {
 320
 321                 mkdir_parents(etc_vconsoleconf, 0755);
 322                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, COPY_REFLINK);
 323                 if (r != -ENOENT) {
 324                         if (r < 0)
 325                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 326
 327                         log_info("%s copied.", etc_vconsoleconf);
 328                         return 0;
 329                 }
 330         }
 331
 332         r = prompt_keymap();
 333         if (r == -ENOENT)
 334                 return 0; /* don't fail if no keymaps are installed */
 335         if (r < 0)
 336                 return r;
 337
 338         if (isempty(arg_keymap))
 339                 return 0;
 340
 341         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 342
 343         r = mkdir_parents(etc_vconsoleconf, 0755);
 344         if (r < 0)
 345                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 346
 347         r = write_env_file(etc_vconsoleconf, keymap);
 348         if (r < 0)
 349                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 350
 351         log_info("%s written.", etc_vconsoleconf);
 352         return 0;
 353 }
 354
 355 static bool timezone_is_valid_log_error(const char *name) {
 356         return timezone_is_valid(name, LOG_ERR);
 357 }
 358
 359 static int prompt_timezone(void) {
 360         _cleanup_strv_free_ char **zones = NULL;
 361         int r;
 362
 363         if (arg_timezone)
 364                 return 0;
 365
 366         if (!arg_prompt_timezone)
 367                 return 0;
 368
 369         r = get_timezones(&zones);
 370         if (r < 0)
 371                 return log_error_errno(r, "Cannot query timezone list: %m");
 372
 373         print_welcome();
 374
 375         printf("\nAvailable Time Zones:\n\n");
 376         r = show_menu(zones, 3, 22, 30);
 377         if (r < 0)
 378                 return r;
 379
 380         putchar('\n');
 381
 382         r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
 383         if (r < 0)
 384                 return r;
 385
 386         return 0;
 387 }
 388
 389 static int process_timezone(void) {
 390         const char *etc_localtime, *e;
 391         int r;
 392
 393         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 394         if (laccess(etc_localtime, F_OK) >= 0)
 395                 return 0;
 396
 397         if (arg_copy_timezone && arg_root) {
 398                 _cleanup_free_ char *p = NULL;
 399
 400                 r = readlink_malloc("/etc/localtime", &p);
 401                 if (r != -ENOENT) {
 402                         if (r < 0)
 403                                 return log_error_errno(r, "Failed to read host timezone: %m");
 404
 405                         mkdir_parents(etc_localtime, 0755);
 406                         if (symlink(p, etc_localtime) < 0)
 407                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 408
 409                         log_info("%s copied.", etc_localtime);
 410                         return 0;
 411                 }
 412         }
 413
 414         r = prompt_timezone();
 415         if (r < 0)
 416                 return r;
 417
 418         if (isempty(arg_timezone))
 419                 return 0;
 420
 421         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 422
 423         mkdir_parents(etc_localtime, 0755);
 424         if (symlink(e, etc_localtime) < 0)
 425                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 426
 427         log_info("%s written", etc_localtime);
 428         return 0;
 429 }
 430
 431 static int prompt_hostname(void) {
 432         int r;
 433
 434         if (arg_hostname)
 435                 return 0;
 436
 437         if (!arg_prompt_hostname)
 438                 return 0;
 439
 440         print_welcome();
 441         putchar('\n');
 442
 443         for (;;) {
 444                 _cleanup_free_ char *h = NULL;
 445
 446                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(TRIANGULAR_BULLET));
 447                 if (r < 0)
 448                         return log_error_errno(r, "Failed to query hostname: %m");
 449
 450                 if (isempty(h)) {
 451                         log_warning("No hostname entered, skipping.");
 452                         break;
 453                 }
 454
 455                 if (!hostname_is_valid(h, true)) {
 456                         log_error("Specified hostname invalid.");
 457                         continue;
 458                 }
 459
 460                 /* Get rid of the trailing dot that we allow, but don't want to see */
 461                 arg_hostname = hostname_cleanup(h);
 462                 h = NULL;
 463                 break;
 464         }
 465
 466         return 0;
 467 }
 468
 469 static int process_hostname(void) {
 470         const char *etc_hostname;
 471         int r;
 472
 473         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 474         if (laccess(etc_hostname, F_OK) >= 0)
 475                 return 0;
 476
 477         r = prompt_hostname();
 478         if (r < 0)
 479                 return r;
 480
 481         if (isempty(arg_hostname))
 482                 return 0;
 483
 484         mkdir_parents(etc_hostname, 0755);
 485         r = write_string_file(etc_hostname, arg_hostname,
 486                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
 487         if (r < 0)
 488                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 489
 490         log_info("%s written.", etc_hostname);
 491         return 0;
 492 }
 493
 494 static int process_machine_id(void) {
 495         const char *etc_machine_id;
 496         char id[SD_ID128_STRING_MAX];
 497         int r;
 498
 499         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 500         if (laccess(etc_machine_id, F_OK) >= 0)
 501                 return 0;
 502
 503         if (sd_id128_is_null(arg_machine_id))
 504                 return 0;
 505
 506         mkdir_parents(etc_machine_id, 0755);
 507         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 508                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC);
 509         if (r < 0)
 510                 return log_error_errno(r, "Failed to write machine id: %m");
 511
 512         log_info("%s written.", etc_machine_id);
 513         return 0;
 514 }
 515
 516 static int prompt_root_password(void) {
 517         const char *msg1, *msg2, *etc_shadow;
 518         int r;
 519
 520         if (arg_root_password)
 521                 return 0;
 522
 523         if (!arg_prompt_root_password)
 524                 return 0;
 525
 526         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 527         if (laccess(etc_shadow, F_OK) >= 0)
 528                 return 0;
 529
 530         print_welcome();
 531         putchar('\n');
 532
 533         msg1 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 534         msg2 = strjoina(special_glyph(TRIANGULAR_BULLET), " Please enter new root password again: ");
 535
 536         for (;;) {
 537                 _cleanup_string_free_erase_ char *a = NULL, *b = NULL;
 538
 539                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 540                 if (r < 0)
 541                         return log_error_errno(r, "Failed to query root password: %m");
 542
 543                 if (isempty(a)) {
 544                         log_warning("No password entered, skipping.");
 545                         break;
 546                 }
 547
 548                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 549                 if (r < 0)
 550                         return log_error_errno(r, "Failed to query root password: %m");
 551
 552                 if (!streq(a, b)) {
 553                         log_error("Entered passwords did not match, please try again.");
 554                         continue;
 555                 }
 556
 557                 arg_root_password = TAKE_PTR(a);
 558                 break;
 559         }
 560
 561         return 0;
 562 }
 563
 564 static int write_root_shadow(const char *path, const struct spwd *p) {
 565         _cleanup_fclose_ FILE *f = NULL;
 566         int r;
 567
 568         assert(path);
 569         assert(p);
 570
 571         RUN_WITH_UMASK(0777)
 572                 f = fopen(path, "wex");
 573         if (!f)
 574                 return -errno;
 575
 576         r = putspent_sane(p, f);
 577         if (r < 0)
 578                 return r;
 579
 580         return fflush_sync_and_check(f);
 581 }
 582
 583 static int process_root_password(void) {
 584
 585         static const char table[] =
 586                 "abcdefghijklmnopqrstuvwxyz"
 587                 "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
 588                 "0123456789"
 589                 "./";
 590
 591         struct spwd item = {
 592                 .sp_namp = (char*) "root",
 593                 .sp_min = -1,
 594                 .sp_max = -1,
 595                 .sp_warn = -1,
 596                 .sp_inact = -1,
 597                 .sp_expire = -1,
 598                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 599         };
 600
 601         _cleanup_close_ int lock = -1;
 602         char salt[3+16+1+1];
 603         uint8_t raw[16];
 604         unsigned i;
 605         char *j;
 606
 607         const char *etc_shadow;
 608         int r;
 609
 610         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 611         if (laccess(etc_shadow, F_OK) >= 0)
 612                 return 0;
 613
 614         mkdir_parents(etc_shadow, 0755);
 615
 616         lock = take_etc_passwd_lock(arg_root);
 617         if (lock < 0)
 618                 return log_error_errno(lock, "Failed to take a lock: %m");
 619
 620         if (arg_copy_root_password && arg_root) {
 621                 struct spwd *p;
 622
 623                 errno = 0;
 624                 p = getspnam("root");
 625                 if (p || errno != ENOENT) {
 626                         if (!p) {
 627                                 if (!errno)
 628                                         errno = EIO;
 629
 630                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 631                         }
 632
 633                         r = write_root_shadow(etc_shadow, p);
 634                         if (r < 0)
 635                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 636
 637                         log_info("%s copied.", etc_shadow);
 638                         return 0;
 639                 }
 640         }
 641
 642         r = prompt_root_password();
 643         if (r < 0)
 644                 return r;
 645
 646         if (!arg_root_password)
 647                 return 0;
 648
 649         r = acquire_random_bytes(raw, 16, true);
 650         if (r < 0)
 651                 return log_error_errno(r, "Failed to get salt: %m");
 652
 653         /* We only bother with SHA512 hashed passwords, the rest is legacy, and we don't do legacy. */
 654         assert_cc(sizeof(table) == 64 + 1);
 655         j = stpcpy(salt, "$6$");
 656         for (i = 0; i < 16; i++)
 657                 j[i] = table[raw[i] & 63];
 658         j[i++] = '$';
 659         j[i] = 0;
 660
 661         errno = 0;
 662         item.sp_pwdp = crypt(arg_root_password, salt);
 663         if (!item.sp_pwdp) {
 664                 if (!errno)
 665                         errno = EINVAL;
 666
 667                 return log_error_errno(errno, "Failed to encrypt password: %m");
 668         }
 669
 670         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 671
 672         r = write_root_shadow(etc_shadow, &item);
 673         if (r < 0)
 674                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 675
 676         log_info("%s written.", etc_shadow);
 677         return 0;
 678 }
 679
 680 static void help(void) {
 681         printf("%s [OPTIONS...]\n\n"
 682                "Configures basic settings of the system.\n\n"
 683                "  -h --help                    Show this help\n"
 684                "     --version                 Show package version\n"
 685                "     --root=PATH               Operate on an alternate filesystem root\n"
 686                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 687                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 688                "     --keymap=KEYMAP           Set keymap\n"
 689                "     --timezone=TIMEZONE       Set timezone\n"
 690                "     --hostname=NAME           Set host name\n"
 691                "     --machine-ID=ID           Set machine ID\n"
 692                "     --root-password=PASSWORD  Set root password\n"
 693                "     --root-password-file=FILE Set root password from file\n"
 694                "     --prompt-locale           Prompt the user for locale settings\n"
 695                "     --prompt-keymap           Prompt the user for keymap settings\n"
 696                "     --prompt-timezone         Prompt the user for timezone\n"
 697                "     --prompt-hostname         Prompt the user for hostname\n"
 698                "     --prompt-root-password    Prompt the user for root password\n"
 699                "     --prompt                  Prompt for all of the above\n"
 700                "     --copy-locale             Copy locale from host\n"
 701                "     --copy-keymap             Copy keymap from host\n"
 702                "     --copy-timezone           Copy timezone from host\n"
 703                "     --copy-root-password      Copy root password from host\n"
 704                "     --copy                    Copy locale, keymap, timezone, root password\n"
 705                "     --setup-machine-id        Generate a new random machine ID\n"
 706                , program_invocation_short_name);
 707 }
 708
 709 static int parse_argv(int argc, char *argv[]) {
 710
 711         enum {
 712                 ARG_VERSION = 0x100,
 713                 ARG_ROOT,
 714                 ARG_LOCALE,
 715                 ARG_LOCALE_MESSAGES,
 716                 ARG_KEYMAP,
 717                 ARG_TIMEZONE,
 718                 ARG_HOSTNAME,
 719                 ARG_MACHINE_ID,
 720                 ARG_ROOT_PASSWORD,
 721                 ARG_ROOT_PASSWORD_FILE,
 722                 ARG_PROMPT,
 723                 ARG_PROMPT_LOCALE,
 724                 ARG_PROMPT_KEYMAP,
 725                 ARG_PROMPT_TIMEZONE,
 726                 ARG_PROMPT_HOSTNAME,
 727                 ARG_PROMPT_ROOT_PASSWORD,
 728                 ARG_COPY,
 729                 ARG_COPY_LOCALE,
 730                 ARG_COPY_KEYMAP,
 731                 ARG_COPY_TIMEZONE,
 732                 ARG_COPY_ROOT_PASSWORD,
 733                 ARG_SETUP_MACHINE_ID,
 734         };
 735
 736         static const struct option options[] = {
 737                 { "help",                 no_argument,       NULL, 'h'                      },
 738                 { "version",              no_argument,       NULL, ARG_VERSION              },
 739                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 740                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 741                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 742                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 743                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 744                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 745                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 746                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 747                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 748                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 749                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 750                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 751                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 752                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 753                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 754                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 755                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 756                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 757                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 758                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 759                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 760                 {}
 761         };
 762
 763         int r, c;
 764
 765         assert(argc >= 0);
 766         assert(argv);
 767
 768         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 769
 770                 switch (c) {
 771
 772                 case 'h':
 773                         help();
 774                         return 0;
 775
 776                 case ARG_VERSION:
 777                         return version();
 778
 779                 case ARG_ROOT:
 780                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 781                         if (r < 0)
 782                                 return r;
 783                         break;
 784
 785                 case ARG_LOCALE:
 786                         if (!locale_is_valid(optarg)) {
 787                                 log_error("Locale %s is not valid.", optarg);
 788                                 return -EINVAL;
 789                         }
 790
 791                         r = free_and_strdup(&arg_locale, optarg);
 792                         if (r < 0)
 793                                 return log_oom();
 794
 795                         break;
 796
 797                 case ARG_LOCALE_MESSAGES:
 798                         if (!locale_is_valid(optarg)) {
 799                                 log_error("Locale %s is not valid.", optarg);
 800                                 return -EINVAL;
 801                         }
 802
 803                         r = free_and_strdup(&arg_locale_messages, optarg);
 804                         if (r < 0)
 805                                 return log_oom();
 806
 807                         break;
 808
 809                 case ARG_KEYMAP:
 810                         if (!keymap_is_valid(optarg)) {
 811                                 log_error("Keymap %s is not valid.", optarg);
 812                                 return -EINVAL;
 813                         }
 814
 815                         r = free_and_strdup(&arg_keymap, optarg);
 816                         if (r < 0)
 817                                 return log_oom();
 818
 819                         break;
 820
 821                 case ARG_TIMEZONE:
 822                         if (!timezone_is_valid(optarg, LOG_ERR)) {
 823                                 log_error("Timezone %s is not valid.", optarg);
 824                                 return -EINVAL;
 825                         }
 826
 827                         r = free_and_strdup(&arg_timezone, optarg);
 828                         if (r < 0)
 829                                 return log_oom();
 830
 831                         break;
 832
 833                 case ARG_ROOT_PASSWORD:
 834                         r = free_and_strdup(&arg_root_password, optarg);
 835                         if (r < 0)
 836                                 return log_oom();
 837                         break;
 838
 839                 case ARG_ROOT_PASSWORD_FILE:
 840                         arg_root_password = mfree(arg_root_password);
 841
 842                         r = read_one_line_file(optarg, &arg_root_password);
 843                         if (r < 0)
 844                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 845
 846                         break;
 847
 848                 case ARG_HOSTNAME:
 849                         if (!hostname_is_valid(optarg, true)) {
 850                                 log_error("Host name %s is not valid.", optarg);
 851                                 return -EINVAL;
 852                         }
 853
 854                         hostname_cleanup(optarg);
 855                         r = free_and_strdup(&arg_hostname, optarg);
 856                         if (r < 0)
 857                                 return log_oom();
 858
 859                         break;
 860
 861                 case ARG_MACHINE_ID:
 862                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0) {
 863                                 log_error("Failed to parse machine id %s.", optarg);
 864                                 return -EINVAL;
 865                         }
 866
 867                         break;
 868
 869                 case ARG_PROMPT:
 870                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
 871                         break;
 872
 873                 case ARG_PROMPT_LOCALE:
 874                         arg_prompt_locale = true;
 875                         break;
 876
 877                 case ARG_PROMPT_KEYMAP:
 878                         arg_prompt_keymap = true;
 879                         break;
 880
 881                 case ARG_PROMPT_TIMEZONE:
 882                         arg_prompt_timezone = true;
 883                         break;
 884
 885                 case ARG_PROMPT_HOSTNAME:
 886                         arg_prompt_hostname = true;
 887                         break;
 888
 889                 case ARG_PROMPT_ROOT_PASSWORD:
 890                         arg_prompt_root_password = true;
 891                         break;
 892
 893                 case ARG_COPY:
 894                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
 895                         break;
 896
 897                 case ARG_COPY_LOCALE:
 898                         arg_copy_locale = true;
 899                         break;
 900
 901                 case ARG_COPY_KEYMAP:
 902                         arg_copy_keymap = true;
 903                         break;
 904
 905                 case ARG_COPY_TIMEZONE:
 906                         arg_copy_timezone = true;
 907                         break;
 908
 909                 case ARG_COPY_ROOT_PASSWORD:
 910                         arg_copy_root_password = true;
 911                         break;
 912
 913                 case ARG_SETUP_MACHINE_ID:
 914
 915                         r = sd_id128_randomize(&arg_machine_id);
 916                         if (r < 0)
 917                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
 918
 919                         break;
 920
 921                 case '?':
 922                         return -EINVAL;
 923
 924                 default:
 925                         assert_not_reached("Unhandled option");
 926                 }
 927
 928         return 1;
 929 }
 930
 931 int main(int argc, char *argv[]) {
 932         bool enabled;
 933         int r;
 934
 935         r = parse_argv(argc, argv);
 936         if (r <= 0)
 937                 goto finish;
 938
 939         log_set_target(LOG_TARGET_AUTO);
 940         log_parse_environment();
 941         log_open();
 942
 943         umask(0022);
 944
 945         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 946         if (r < 0) {
 947                 log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring.");
 948                 goto finish;
 949         }
 950         if (r > 0 && !enabled) {
 951                 r = 0; /* disabled */
 952                 goto finish;
 953         }
 954
 955         r = process_locale();
 956         if (r < 0)
 957                 goto finish;
 958
 959         r = process_keymap();
 960         if (r < 0)
 961                 goto finish;
 962
 963         r = process_timezone();
 964         if (r < 0)
 965                 goto finish;
 966
 967         r = process_hostname();
 968         if (r < 0)
 969                 goto finish;
 970
 971         r = process_machine_id();
 972         if (r < 0)
 973                 goto finish;
 974
 975         r = process_root_password();
 976         if (r < 0)
 977                 goto finish;
 978
 979 finish:
 980         free(arg_root);
 981         free(arg_locale);
 982         free(arg_locale_messages);
 983         free(arg_keymap);
 984         free(arg_timezone);
 985         free(arg_hostname);
 986         string_erase(arg_root_password);
 987         free(arg_root_password);
 988
 989         return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS;
 990 }