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;
  91         static bool done = false;
  92         int r;
  93
  94         if (done)
  95                 return;
  96
  97         r = parse_os_release(arg_root, "PRETTY_NAME", &pretty_name, NULL);
  98         if (r < 0)
  99                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
 100                                "Failed to read os-release file, ignoring: %m");
 101
 102         printf("\nWelcome to your new installation of %s!\nPlease configure a few basic system settings:\n\n",
 103                isempty(pretty_name) ? "Linux" : pretty_name);
 104
 105         press_any_key();
 106
 107         done = true;
 108 }
 109
 110 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 111         unsigned break_lines, break_modulo;
 112         size_t n, per_column, i, j;
 113
 114         assert(n_columns > 0);
 115
 116         n = strv_length(x);
 117         per_column = DIV_ROUND_UP(n, n_columns);
 118
 119         break_lines = lines();
 120         if (break_lines > 2)
 121                 break_lines--;
 122
 123         /* The first page gets two extra lines, since we want to show
 124          * a title */
 125         break_modulo = break_lines;
 126         if (break_modulo > 3)
 127                 break_modulo -= 3;
 128
 129         for (i = 0; i < per_column; i++) {
 130
 131                 for (j = 0; j < n_columns; j ++) {
 132                         _cleanup_free_ char *e = NULL;
 133
 134                         if (j * per_column + i >= n)
 135                                 break;
 136
 137                         e = ellipsize(x[j * per_column + i], width, percentage);
 138                         if (!e)
 139                                 return log_oom();
 140
 141                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 142                 }
 143
 144                 putchar('\n');
 145
 146                 /* on the first screen we reserve 2 extra lines for the title */
 147                 if (i % break_lines == break_modulo) {
 148                         if (!press_any_key())
 149                                 return 0;
 150                 }
 151         }
 152
 153         return 0;
 154 }
 155
 156 static int prompt_loop(const char *text, char **l, bool (*is_valid)(const char *name), char **ret) {
 157         int r;
 158
 159         assert(text);
 160         assert(is_valid);
 161         assert(ret);
 162
 163         for (;;) {
 164                 _cleanup_free_ char *p = NULL;
 165                 unsigned u;
 166
 167                 r = ask_string(&p, "%s %s (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 168                 if (r < 0)
 169                         return log_error_errno(r, "Failed to query user: %m");
 170
 171                 if (isempty(p)) {
 172                         log_warning("No data entered, skipping.");
 173                         return 0;
 174                 }
 175
 176                 r = safe_atou(p, &u);
 177                 if (r >= 0) {
 178                         char *c;
 179
 180                         if (u <= 0 || u > strv_length(l)) {
 181                                 log_error("Specified entry number out of range.");
 182                                 continue;
 183                         }
 184
 185                         log_info("Selected '%s'.", l[u-1]);
 186
 187                         c = strdup(l[u-1]);
 188                         if (!c)
 189                                 return log_oom();
 190
 191                         free(*ret);
 192                         *ret = c;
 193                         return 0;
 194                 }
 195
 196                 if (!is_valid(p)) {
 197                         log_error("Entered data invalid.");
 198                         continue;
 199                 }
 200
 201                 free(*ret);
 202                 *ret = p;
 203                 p = 0;
 204                 return 0;
 205         }
 206 }
 207
 208 static int prompt_locale(void) {
 209         _cleanup_strv_free_ char **locales = NULL;
 210         int r;
 211
 212         if (arg_locale || arg_locale_messages)
 213                 return 0;
 214
 215         if (!arg_prompt_locale)
 216                 return 0;
 217
 218         r = get_locales(&locales);
 219         if (r < 0)
 220                 return log_error_errno(r, "Cannot query locales list: %m");
 221
 222         if (strv_isempty(locales))
 223                 log_debug("No locales found, skipping locale selection.");
 224         else if (strv_length(locales) == 1) {
 225
 226                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 227                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 228                 else {
 229                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 230
 231                         arg_locale = strdup(locales[0]);
 232                         if (!arg_locale)
 233                                 return log_oom();
 234
 235                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 236                 }
 237         } else {
 238                 print_welcome();
 239
 240                 printf("\nAvailable Locales:\n\n");
 241                 r = show_menu(locales, 3, 22, 60);
 242                 if (r < 0)
 243                         return r;
 244
 245                 putchar('\n');
 246
 247                 r = prompt_loop("Please enter system locale name or number", locales, locale_is_valid, &arg_locale);
 248                 if (r < 0)
 249                         return r;
 250
 251                 if (isempty(arg_locale))
 252                         return 0;
 253
 254                 r = prompt_loop("Please enter system message locale name or number", locales, locale_is_valid, &arg_locale_messages);
 255                 if (r < 0)
 256                         return r;
 257
 258                 /* Suppress the messages setting if it's the same as the main locale anyway */
 259                 if (streq_ptr(arg_locale, arg_locale_messages))
 260                         arg_locale_messages = mfree(arg_locale_messages);
 261         }
 262
 263         return 0;
 264 }
 265
 266 static int process_locale(void) {
 267         const char *etc_localeconf;
 268         char* locales[3];
 269         unsigned i = 0;
 270         int r;
 271
 272         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 273         if (laccess(etc_localeconf, F_OK) >= 0)
 274                 return 0;
 275
 276         if (arg_copy_locale && arg_root) {
 277
 278                 (void) mkdir_parents(etc_localeconf, 0755);
 279                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 280                 if (r != -ENOENT) {
 281                         if (r < 0)
 282                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 283
 284                         log_info("%s copied.", etc_localeconf);
 285                         return 0;
 286                 }
 287         }
 288
 289         r = prompt_locale();
 290         if (r < 0)
 291                 return r;
 292
 293         if (!isempty(arg_locale))
 294                 locales[i++] = strjoina("LANG=", arg_locale);
 295         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 296                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 297
 298         if (i == 0)
 299                 return 0;
 300
 301         locales[i] = NULL;
 302
 303         (void) mkdir_parents(etc_localeconf, 0755);
 304         r = write_env_file(etc_localeconf, locales);
 305         if (r < 0)
 306                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 307
 308         log_info("%s written.", etc_localeconf);
 309         return 0;
 310 }
 311
 312 static int prompt_keymap(void) {
 313         _cleanup_strv_free_ char **kmaps = NULL;
 314         int r;
 315
 316         if (arg_keymap)
 317                 return 0;
 318
 319         if (!arg_prompt_keymap)
 320                 return 0;
 321
 322         r = get_keymaps(&kmaps);
 323         if (r == -ENOENT) /* no keymaps installed */
 324                 return r;
 325         if (r < 0)
 326                 return log_error_errno(r, "Failed to read keymaps: %m");
 327
 328         print_welcome();
 329
 330         printf("\nAvailable keymaps:\n\n");
 331         r = show_menu(kmaps, 3, 22, 60);
 332         if (r < 0)
 333                 return r;
 334
 335         putchar('\n');
 336
 337         return prompt_loop("Please enter system keymap name or number",
 338                            kmaps, keymap_is_valid, &arg_keymap);
 339 }
 340
 341 static int process_keymap(void) {
 342         const char *etc_vconsoleconf;
 343         char **keymap;
 344         int r;
 345
 346         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 347         if (laccess(etc_vconsoleconf, F_OK) >= 0)
 348                 return 0;
 349
 350         if (arg_copy_keymap && arg_root) {
 351
 352                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 353                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 354                 if (r != -ENOENT) {
 355                         if (r < 0)
 356                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 357
 358                         log_info("%s copied.", etc_vconsoleconf);
 359                         return 0;
 360                 }
 361         }
 362
 363         r = prompt_keymap();
 364         if (r == -ENOENT)
 365                 return 0; /* don't fail if no keymaps are installed */
 366         if (r < 0)
 367                 return r;
 368
 369         if (isempty(arg_keymap))
 370                 return 0;
 371
 372         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 373
 374         r = mkdir_parents(etc_vconsoleconf, 0755);
 375         if (r < 0)
 376                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 377
 378         r = write_env_file(etc_vconsoleconf, keymap);
 379         if (r < 0)
 380                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 381
 382         log_info("%s written.", etc_vconsoleconf);
 383         return 0;
 384 }
 385
 386 static bool timezone_is_valid_log_error(const char *name) {
 387         return timezone_is_valid(name, LOG_ERR);
 388 }
 389
 390 static int prompt_timezone(void) {
 391         _cleanup_strv_free_ char **zones = NULL;
 392         int r;
 393
 394         if (arg_timezone)
 395                 return 0;
 396
 397         if (!arg_prompt_timezone)
 398                 return 0;
 399
 400         r = get_timezones(&zones);
 401         if (r < 0)
 402                 return log_error_errno(r, "Cannot query timezone list: %m");
 403
 404         print_welcome();
 405
 406         printf("\nAvailable Time Zones:\n\n");
 407         r = show_menu(zones, 3, 22, 30);
 408         if (r < 0)
 409                 return r;
 410
 411         putchar('\n');
 412
 413         r = prompt_loop("Please enter timezone name or number", zones, timezone_is_valid_log_error, &arg_timezone);
 414         if (r < 0)
 415                 return r;
 416
 417         return 0;
 418 }
 419
 420 static int process_timezone(void) {
 421         const char *etc_localtime, *e;
 422         int r;
 423
 424         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 425         if (laccess(etc_localtime, F_OK) >= 0)
 426                 return 0;
 427
 428         if (arg_copy_timezone && arg_root) {
 429                 _cleanup_free_ char *p = NULL;
 430
 431                 r = readlink_malloc("/etc/localtime", &p);
 432                 if (r != -ENOENT) {
 433                         if (r < 0)
 434                                 return log_error_errno(r, "Failed to read host timezone: %m");
 435
 436                         (void) mkdir_parents(etc_localtime, 0755);
 437                         if (symlink(p, etc_localtime) < 0)
 438                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 439
 440                         log_info("%s copied.", etc_localtime);
 441                         return 0;
 442                 }
 443         }
 444
 445         r = prompt_timezone();
 446         if (r < 0)
 447                 return r;
 448
 449         if (isempty(arg_timezone))
 450                 return 0;
 451
 452         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 453
 454         (void) mkdir_parents(etc_localtime, 0755);
 455         if (symlink(e, etc_localtime) < 0)
 456                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 457
 458         log_info("%s written", etc_localtime);
 459         return 0;
 460 }
 461
 462 static int prompt_hostname(void) {
 463         int r;
 464
 465         if (arg_hostname)
 466                 return 0;
 467
 468         if (!arg_prompt_hostname)
 469                 return 0;
 470
 471         print_welcome();
 472         putchar('\n');
 473
 474         for (;;) {
 475                 _cleanup_free_ char *h = NULL;
 476
 477                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 478                 if (r < 0)
 479                         return log_error_errno(r, "Failed to query hostname: %m");
 480
 481                 if (isempty(h)) {
 482                         log_warning("No hostname entered, skipping.");
 483                         break;
 484                 }
 485
 486                 if (!hostname_is_valid(h, true)) {
 487                         log_error("Specified hostname invalid.");
 488                         continue;
 489                 }
 490
 491                 /* Get rid of the trailing dot that we allow, but don't want to see */
 492                 arg_hostname = hostname_cleanup(h);
 493                 h = NULL;
 494                 break;
 495         }
 496
 497         return 0;
 498 }
 499
 500 static int process_hostname(void) {
 501         const char *etc_hostname;
 502         int r;
 503
 504         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 505         if (laccess(etc_hostname, F_OK) >= 0)
 506                 return 0;
 507
 508         r = prompt_hostname();
 509         if (r < 0)
 510                 return r;
 511
 512         if (isempty(arg_hostname))
 513                 return 0;
 514
 515         r = write_string_file(etc_hostname, arg_hostname,
 516                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 517         if (r < 0)
 518                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 519
 520         log_info("%s written.", etc_hostname);
 521         return 0;
 522 }
 523
 524 static int process_machine_id(void) {
 525         const char *etc_machine_id;
 526         char id[SD_ID128_STRING_MAX];
 527         int r;
 528
 529         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 530         if (laccess(etc_machine_id, F_OK) >= 0)
 531                 return 0;
 532
 533         if (sd_id128_is_null(arg_machine_id))
 534                 return 0;
 535
 536         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 537                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755);
 538         if (r < 0)
 539                 return log_error_errno(r, "Failed to write machine id: %m");
 540
 541         log_info("%s written.", etc_machine_id);
 542         return 0;
 543 }
 544
 545 static int prompt_root_password(void) {
 546         const char *msg1, *msg2, *etc_shadow;
 547         int r;
 548
 549         if (arg_root_password)
 550                 return 0;
 551
 552         if (!arg_prompt_root_password)
 553                 return 0;
 554
 555         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 556         if (laccess(etc_shadow, F_OK) >= 0)
 557                 return 0;
 558
 559         print_welcome();
 560         putchar('\n');
 561
 562         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip): ");
 563         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again: ");
 564
 565         for (;;) {
 566                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 567
 568                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 569                 if (r < 0)
 570                         return log_error_errno(r, "Failed to query root password: %m");
 571                 if (strv_length(a) != 1) {
 572                         log_warning("Received multiple passwords, where we expected one.");
 573                         return -EINVAL;
 574                 }
 575
 576                 if (isempty(*a)) {
 577                         log_warning("No password entered, skipping.");
 578                         break;
 579                 }
 580
 581                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 582                 if (r < 0)
 583                         return log_error_errno(r, "Failed to query root password: %m");
 584
 585                 if (!streq(*a, *b)) {
 586                         log_error("Entered passwords did not match, please try again.");
 587                         continue;
 588                 }
 589
 590                 arg_root_password = TAKE_PTR(*a);
 591                 break;
 592         }
 593
 594         return 0;
 595 }
 596
 597 static int write_root_shadow(const char *path, const struct spwd *p) {
 598         _cleanup_fclose_ FILE *f = NULL;
 599         int r;
 600
 601         assert(path);
 602         assert(p);
 603
 604         RUN_WITH_UMASK(0777)
 605                 f = fopen(path, "wex");
 606         if (!f)
 607                 return -errno;
 608
 609         r = putspent_sane(p, f);
 610         if (r < 0)
 611                 return r;
 612
 613         return fflush_sync_and_check(f);
 614 }
 615
 616 static int process_root_password(void) {
 617
 618         struct spwd item = {
 619                 .sp_namp = (char*) "root",
 620                 .sp_min = -1,
 621                 .sp_max = -1,
 622                 .sp_warn = -1,
 623                 .sp_inact = -1,
 624                 .sp_expire = -1,
 625                 .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 626         };
 627         _cleanup_free_ char *salt = NULL;
 628         _cleanup_close_ int lock = -1;
 629         struct crypt_data cd = {};
 630
 631         const char *etc_shadow;
 632         int r;
 633
 634         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 635         if (laccess(etc_shadow, F_OK) >= 0)
 636                 return 0;
 637
 638         (void) mkdir_parents(etc_shadow, 0755);
 639
 640         lock = take_etc_passwd_lock(arg_root);
 641         if (lock < 0)
 642                 return log_error_errno(lock, "Failed to take a lock: %m");
 643
 644         if (arg_copy_root_password && arg_root) {
 645                 struct spwd *p;
 646
 647                 errno = 0;
 648                 p = getspnam("root");
 649                 if (p || errno != ENOENT) {
 650                         if (!p) {
 651                                 if (!errno)
 652                                         errno = EIO;
 653
 654                                 return log_error_errno(errno, "Failed to find shadow entry for root: %m");
 655                         }
 656
 657                         r = write_root_shadow(etc_shadow, p);
 658                         if (r < 0)
 659                                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 660
 661                         log_info("%s copied.", etc_shadow);
 662                         return 0;
 663                 }
 664         }
 665
 666         r = prompt_root_password();
 667         if (r < 0)
 668                 return r;
 669
 670         if (!arg_root_password)
 671                 return 0;
 672
 673         r = make_salt(&salt);
 674         if (r < 0)
 675                 return log_error_errno(r, "Failed to get salt: %m");
 676
 677         errno = 0;
 678         item.sp_pwdp = crypt_r(arg_root_password, salt, &cd);
 679         if (!item.sp_pwdp)
 680                 return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
 681                                        "Failed to encrypt password: %m");
 682
 683         item.sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 684
 685         r = write_root_shadow(etc_shadow, &item);
 686         if (r < 0)
 687                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 688
 689         log_info("%s written.", etc_shadow);
 690         return 0;
 691 }
 692
 693 static int help(void) {
 694         _cleanup_free_ char *link = NULL;
 695         int r;
 696
 697         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 698         if (r < 0)
 699                 return log_oom();
 700
 701         printf("%s [OPTIONS...]\n\n"
 702                "Configures basic settings of the system.\n\n"
 703                "  -h --help                    Show this help\n"
 704                "     --version                 Show package version\n"
 705                "     --root=PATH               Operate on an alternate filesystem root\n"
 706                "     --locale=LOCALE           Set primary locale (LANG=)\n"
 707                "     --locale-messages=LOCALE  Set message locale (LC_MESSAGES=)\n"
 708                "     --keymap=KEYMAP           Set keymap\n"
 709                "     --timezone=TIMEZONE       Set timezone\n"
 710                "     --hostname=NAME           Set host name\n"
 711                "     --machine-ID=ID           Set machine ID\n"
 712                "     --root-password=PASSWORD  Set root password\n"
 713                "     --root-password-file=FILE Set root password from file\n"
 714                "     --prompt-locale           Prompt the user for locale settings\n"
 715                "     --prompt-keymap           Prompt the user for keymap settings\n"
 716                "     --prompt-timezone         Prompt the user for timezone\n"
 717                "     --prompt-hostname         Prompt the user for hostname\n"
 718                "     --prompt-root-password    Prompt the user for root password\n"
 719                "     --prompt                  Prompt for all of the above\n"
 720                "     --copy-locale             Copy locale from host\n"
 721                "     --copy-keymap             Copy keymap from host\n"
 722                "     --copy-timezone           Copy timezone from host\n"
 723                "     --copy-root-password      Copy root password from host\n"
 724                "     --copy                    Copy locale, keymap, timezone, root password\n"
 725                "     --setup-machine-id        Generate a new random machine ID\n"
 726                "\nSee the %s for details.\n"
 727                , program_invocation_short_name
 728                , link
 729         );
 730
 731         return 0;
 732 }
 733
 734 static int parse_argv(int argc, char *argv[]) {
 735
 736         enum {
 737                 ARG_VERSION = 0x100,
 738                 ARG_ROOT,
 739                 ARG_LOCALE,
 740                 ARG_LOCALE_MESSAGES,
 741                 ARG_KEYMAP,
 742                 ARG_TIMEZONE,
 743                 ARG_HOSTNAME,
 744                 ARG_MACHINE_ID,
 745                 ARG_ROOT_PASSWORD,
 746                 ARG_ROOT_PASSWORD_FILE,
 747                 ARG_PROMPT,
 748                 ARG_PROMPT_LOCALE,
 749                 ARG_PROMPT_KEYMAP,
 750                 ARG_PROMPT_TIMEZONE,
 751                 ARG_PROMPT_HOSTNAME,
 752                 ARG_PROMPT_ROOT_PASSWORD,
 753                 ARG_COPY,
 754                 ARG_COPY_LOCALE,
 755                 ARG_COPY_KEYMAP,
 756                 ARG_COPY_TIMEZONE,
 757                 ARG_COPY_ROOT_PASSWORD,
 758                 ARG_SETUP_MACHINE_ID,
 759         };
 760
 761         static const struct option options[] = {
 762                 { "help",                 no_argument,       NULL, 'h'                      },
 763                 { "version",              no_argument,       NULL, ARG_VERSION              },
 764                 { "root",                 required_argument, NULL, ARG_ROOT                 },
 765                 { "locale",               required_argument, NULL, ARG_LOCALE               },
 766                 { "locale-messages",      required_argument, NULL, ARG_LOCALE_MESSAGES      },
 767                 { "keymap",               required_argument, NULL, ARG_KEYMAP               },
 768                 { "timezone",             required_argument, NULL, ARG_TIMEZONE             },
 769                 { "hostname",             required_argument, NULL, ARG_HOSTNAME             },
 770                 { "machine-id",           required_argument, NULL, ARG_MACHINE_ID           },
 771                 { "root-password",        required_argument, NULL, ARG_ROOT_PASSWORD        },
 772                 { "root-password-file",   required_argument, NULL, ARG_ROOT_PASSWORD_FILE   },
 773                 { "prompt",               no_argument,       NULL, ARG_PROMPT               },
 774                 { "prompt-locale",        no_argument,       NULL, ARG_PROMPT_LOCALE        },
 775                 { "prompt-keymap",        no_argument,       NULL, ARG_PROMPT_KEYMAP        },
 776                 { "prompt-timezone",      no_argument,       NULL, ARG_PROMPT_TIMEZONE      },
 777                 { "prompt-hostname",      no_argument,       NULL, ARG_PROMPT_HOSTNAME      },
 778                 { "prompt-root-password", no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD },
 779                 { "copy",                 no_argument,       NULL, ARG_COPY                 },
 780                 { "copy-locale",          no_argument,       NULL, ARG_COPY_LOCALE          },
 781                 { "copy-keymap",          no_argument,       NULL, ARG_COPY_KEYMAP          },
 782                 { "copy-timezone",        no_argument,       NULL, ARG_COPY_TIMEZONE        },
 783                 { "copy-root-password",   no_argument,       NULL, ARG_COPY_ROOT_PASSWORD   },
 784                 { "setup-machine-id",     no_argument,       NULL, ARG_SETUP_MACHINE_ID     },
 785                 {}
 786         };
 787
 788         int r, c;
 789
 790         assert(argc >= 0);
 791         assert(argv);
 792
 793         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
 794
 795                 switch (c) {
 796
 797                 case 'h':
 798                         return help();
 799
 800                 case ARG_VERSION:
 801                         return version();
 802
 803                 case ARG_ROOT:
 804                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
 805                         if (r < 0)
 806                                 return r;
 807                         break;
 808
 809                 case ARG_LOCALE:
 810                         if (!locale_is_valid(optarg))
 811                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 812                                                        "Locale %s is not valid.", optarg);
 813
 814                         r = free_and_strdup(&arg_locale, optarg);
 815                         if (r < 0)
 816                                 return log_oom();
 817
 818                         break;
 819
 820                 case ARG_LOCALE_MESSAGES:
 821                         if (!locale_is_valid(optarg))
 822                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 823                                                        "Locale %s is not valid.", optarg);
 824
 825                         r = free_and_strdup(&arg_locale_messages, optarg);
 826                         if (r < 0)
 827                                 return log_oom();
 828
 829                         break;
 830
 831                 case ARG_KEYMAP:
 832                         if (!keymap_is_valid(optarg))
 833                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 834                                                        "Keymap %s is not valid.", optarg);
 835
 836                         r = free_and_strdup(&arg_keymap, optarg);
 837                         if (r < 0)
 838                                 return log_oom();
 839
 840                         break;
 841
 842                 case ARG_TIMEZONE:
 843                         if (!timezone_is_valid(optarg, LOG_ERR))
 844                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 845                                                        "Timezone %s is not valid.", optarg);
 846
 847                         r = free_and_strdup(&arg_timezone, optarg);
 848                         if (r < 0)
 849                                 return log_oom();
 850
 851                         break;
 852
 853                 case ARG_ROOT_PASSWORD:
 854                         r = free_and_strdup(&arg_root_password, optarg);
 855                         if (r < 0)
 856                                 return log_oom();
 857                         break;
 858
 859                 case ARG_ROOT_PASSWORD_FILE:
 860                         arg_root_password = mfree(arg_root_password);
 861
 862                         r = read_one_line_file(optarg, &arg_root_password);
 863                         if (r < 0)
 864                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
 865
 866                         break;
 867
 868                 case ARG_HOSTNAME:
 869                         if (!hostname_is_valid(optarg, true))
 870                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 871                                                        "Host name %s is not valid.", optarg);
 872
 873                         hostname_cleanup(optarg);
 874                         r = free_and_strdup(&arg_hostname, optarg);
 875                         if (r < 0)
 876                                 return log_oom();
 877
 878                         break;
 879
 880                 case ARG_MACHINE_ID:
 881                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
 882                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
 883                                                        "Failed to parse machine id %s.", optarg);
 884
 885                         break;
 886
 887                 case ARG_PROMPT:
 888                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
 889                         break;
 890
 891                 case ARG_PROMPT_LOCALE:
 892                         arg_prompt_locale = true;
 893                         break;
 894
 895                 case ARG_PROMPT_KEYMAP:
 896                         arg_prompt_keymap = true;
 897                         break;
 898
 899                 case ARG_PROMPT_TIMEZONE:
 900                         arg_prompt_timezone = true;
 901                         break;
 902
 903                 case ARG_PROMPT_HOSTNAME:
 904                         arg_prompt_hostname = true;
 905                         break;
 906
 907                 case ARG_PROMPT_ROOT_PASSWORD:
 908                         arg_prompt_root_password = true;
 909                         break;
 910
 911                 case ARG_COPY:
 912                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = true;
 913                         break;
 914
 915                 case ARG_COPY_LOCALE:
 916                         arg_copy_locale = true;
 917                         break;
 918
 919                 case ARG_COPY_KEYMAP:
 920                         arg_copy_keymap = true;
 921                         break;
 922
 923                 case ARG_COPY_TIMEZONE:
 924                         arg_copy_timezone = true;
 925                         break;
 926
 927                 case ARG_COPY_ROOT_PASSWORD:
 928                         arg_copy_root_password = true;
 929                         break;
 930
 931                 case ARG_SETUP_MACHINE_ID:
 932
 933                         r = sd_id128_randomize(&arg_machine_id);
 934                         if (r < 0)
 935                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
 936
 937                         break;
 938
 939                 case '?':
 940                         return -EINVAL;
 941
 942                 default:
 943                         assert_not_reached("Unhandled option");
 944                 }
 945
 946         return 1;
 947 }
 948
 949 static int run(int argc, char *argv[]) {
 950         bool enabled;
 951         int r;
 952
 953         r = parse_argv(argc, argv);
 954         if (r <= 0)
 955                 return r;
 956
 957         log_setup_service();
 958
 959         umask(0022);
 960
 961         r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
 962         if (r < 0)
 963                 return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
 964         if (r > 0 && !enabled)
 965                 return 0; /* disabled */
 966
 967         r = process_locale();
 968         if (r < 0)
 969                 return r;
 970
 971         r = process_keymap();
 972         if (r < 0)
 973                 return r;
 974
 975         r = process_timezone();
 976         if (r < 0)
 977                 return r;
 978
 979         r = process_hostname();
 980         if (r < 0)
 981                 return r;
 982
 983         r = process_machine_id();
 984         if (r < 0)
 985                 return r;
 986
 987         r = process_root_password();
 988         if (r < 0)
 989                 return r;
 990
 991         return 0;
 992 }
 993
 994 DEFINE_MAIN_FUNCTION(run);