src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <fcntl.h>
   4 #include <getopt.h>
   5 #include <linux/loop.h>
   6 #include <unistd.h>
   7
   8 #include "sd-id128.h"
   9
  10 #include "alloc-util.h"
  11 #include "ask-password-api.h"
  12 #include "copy.h"
  13 #include "dissect-image.h"
  14 #include "env-file.h"
  15 #include "fd-util.h"
  16 #include "fileio.h"
  17 #include "fs-util.h"
  18 #include "hostname-util.h"
  19 #include "kbd-util.h"
  20 #include "libcrypt-util.h"
  21 #include "locale-util.h"
  22 #include "main-func.h"
  23 #include "memory-util.h"
  24 #include "mkdir.h"
  25 #include "mount-util.h"
  26 #include "os-util.h"
  27 #include "parse-argument.h"
  28 #include "parse-util.h"
  29 #include "path-util.h"
  30 #include "pretty-print.h"
  31 #include "proc-cmdline.h"
  32 #include "pwquality-util.h"
  33 #include "random-util.h"
  34 #include "string-util.h"
  35 #include "strv.h"
  36 #include "terminal-util.h"
  37 #include "time-util.h"
  38 #include "tmpfile-util-label.h"
  39 #include "tmpfile-util.h"
  40 #include "umask-util.h"
  41 #include "user-util.h"
  42
  43 static char *arg_root = NULL;
  44 static char *arg_image = NULL;
  45 static char *arg_locale = NULL;  /* $LANG */
  46 static char *arg_keymap = NULL;
  47 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  48 static char *arg_timezone = NULL;
  49 static char *arg_hostname = NULL;
  50 static sd_id128_t arg_machine_id = {};
  51 static char *arg_root_password = NULL;
  52 static char *arg_root_shell = NULL;
  53 static char *arg_kernel_cmdline = 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_prompt_root_shell = false;
  60 static bool arg_copy_locale = false;
  61 static bool arg_copy_keymap = false;
  62 static bool arg_copy_timezone = false;
  63 static bool arg_copy_root_password = false;
  64 static bool arg_copy_root_shell = false;
  65 static bool arg_force = false;
  66 static bool arg_delete_root_password = false;
  67 static bool arg_root_password_is_hashed = false;
  68 static bool arg_welcome = true;
  69
  70 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
  71 STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
  72 STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
  73 STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
  74 STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
  75 STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
  76 STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
  77 STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
  78
  79 static bool press_any_key(void) {
  80         char k = 0;
  81         bool need_nl = true;
  82
  83         printf("-- Press any key to proceed --");
  84         fflush(stdout);
  85
  86         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  87
  88         if (need_nl)
  89                 putchar('\n');
  90
  91         return k != 'q';
  92 }
  93
  94 static void print_welcome(void) {
  95         _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
  96         static bool done = false;
  97         const char *pn, *ac;
  98         int r;
  99
 100         if (!arg_welcome)
 101                 return;
 102
 103         if (done)
 104                 return;
 105
 106         r = parse_os_release(
 107                         arg_root,
 108                         "PRETTY_NAME", &pretty_name,
 109                         "ANSI_COLOR", &ansi_color,
 110                         NULL);
 111         if (r < 0)
 112                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
 113                                "Failed to read os-release file, ignoring: %m");
 114
 115         pn = isempty(pretty_name) ? "Linux" : pretty_name;
 116         ac = isempty(ansi_color) ? "0" : ansi_color;
 117
 118         if (colors_enabled())
 119                 printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ac, pn);
 120         else
 121                 printf("\nWelcome to your new installation of %s!\n", pn);
 122
 123         printf("\nPlease configure your system!\n\n");
 124
 125         press_any_key();
 126
 127         done = true;
 128 }
 129
 130 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 131         unsigned break_lines, break_modulo;
 132         size_t n, per_column, i, j;
 133
 134         assert(n_columns > 0);
 135
 136         n = strv_length(x);
 137         per_column = DIV_ROUND_UP(n, n_columns);
 138
 139         break_lines = lines();
 140         if (break_lines > 2)
 141                 break_lines--;
 142
 143         /* The first page gets two extra lines, since we want to show
 144          * a title */
 145         break_modulo = break_lines;
 146         if (break_modulo > 3)
 147                 break_modulo -= 3;
 148
 149         for (i = 0; i < per_column; i++) {
 150
 151                 for (j = 0; j < n_columns; j ++) {
 152                         _cleanup_free_ char *e = NULL;
 153
 154                         if (j * per_column + i >= n)
 155                                 break;
 156
 157                         e = ellipsize(x[j * per_column + i], width, percentage);
 158                         if (!e)
 159                                 return log_oom();
 160
 161                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 162                 }
 163
 164                 putchar('\n');
 165
 166                 /* on the first screen we reserve 2 extra lines for the title */
 167                 if (i % break_lines == break_modulo) {
 168                         if (!press_any_key())
 169                                 return 0;
 170                 }
 171         }
 172
 173         return 0;
 174 }
 175
 176 static int prompt_loop(const char *text, char **l, unsigned percentage, bool (*is_valid)(const char *name), char **ret) {
 177         int r;
 178
 179         assert(text);
 180         assert(is_valid);
 181         assert(ret);
 182
 183         for (;;) {
 184                 _cleanup_free_ char *p = NULL;
 185                 unsigned u;
 186
 187                 r = ask_string(&p, "%s %s (empty to skip, \"list\" to list options): ",
 188                                special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 189                 if (r < 0)
 190                         return log_error_errno(r, "Failed to query user: %m");
 191
 192                 if (isempty(p)) {
 193                         log_warning("No data entered, skipping.");
 194                         return 0;
 195                 }
 196
 197                 if (streq(p, "list")) {
 198                         r = show_menu(l, 3, 22, percentage);
 199                         if (r < 0)
 200                                 return r;
 201
 202                         putchar('\n');
 203                         continue;
 204                 };
 205
 206                 r = safe_atou(p, &u);
 207                 if (r >= 0) {
 208                         if (u <= 0 || u > strv_length(l)) {
 209                                 log_error("Specified entry number out of range.");
 210                                 continue;
 211                         }
 212
 213                         log_info("Selected '%s'.", l[u-1]);
 214                         return free_and_strdup_warn(ret, l[u-1]);
 215                 }
 216
 217                 if (!is_valid(p)) {
 218                         log_error("Entered data invalid.");
 219                         continue;
 220                 }
 221
 222                 return free_and_replace(*ret, p);
 223         }
 224 }
 225
 226 static bool locale_is_ok(const char *name) {
 227
 228         if (arg_root)
 229                 return locale_is_valid(name);
 230
 231         return locale_is_installed(name) > 0;
 232 }
 233
 234 static int prompt_locale(void) {
 235         _cleanup_strv_free_ char **locales = NULL;
 236         int r;
 237
 238         if (arg_locale || arg_locale_messages)
 239                 return 0;
 240
 241         if (!arg_prompt_locale)
 242                 return 0;
 243
 244         r = get_locales(&locales);
 245         if (r < 0)
 246                 return log_error_errno(r, "Cannot query locales list: %m");
 247
 248         if (strv_isempty(locales))
 249                 log_debug("No locales found, skipping locale selection.");
 250         else if (strv_length(locales) == 1) {
 251
 252                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 253                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 254                 else {
 255                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 256
 257                         arg_locale = strdup(locales[0]);
 258                         if (!arg_locale)
 259                                 return log_oom();
 260
 261                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 262                 }
 263         } else {
 264                 print_welcome();
 265
 266                 r = prompt_loop("Please enter system locale name or number",
 267                                 locales, 60, locale_is_ok, &arg_locale);
 268                 if (r < 0)
 269                         return r;
 270
 271                 if (isempty(arg_locale))
 272                         return 0;
 273
 274                 r = prompt_loop("Please enter system message locale name or number",
 275                                 locales, 60, locale_is_ok, &arg_locale_messages);
 276                 if (r < 0)
 277                         return r;
 278
 279                 /* Suppress the messages setting if it's the same as the main locale anyway */
 280                 if (streq_ptr(arg_locale, arg_locale_messages))
 281                         arg_locale_messages = mfree(arg_locale_messages);
 282         }
 283
 284         return 0;
 285 }
 286
 287 static int process_locale(void) {
 288         const char *etc_localeconf;
 289         char* locales[3];
 290         unsigned i = 0;
 291         int r;
 292
 293         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 294         if (laccess(etc_localeconf, F_OK) >= 0 && !arg_force)
 295                 return 0;
 296
 297         if (arg_copy_locale && arg_root) {
 298
 299                 (void) mkdir_parents(etc_localeconf, 0755);
 300                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 301                 if (r != -ENOENT) {
 302                         if (r < 0)
 303                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 304
 305                         log_info("%s copied.", etc_localeconf);
 306                         return 0;
 307                 }
 308         }
 309
 310         r = prompt_locale();
 311         if (r < 0)
 312                 return r;
 313
 314         if (!isempty(arg_locale))
 315                 locales[i++] = strjoina("LANG=", arg_locale);
 316         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 317                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 318
 319         if (i == 0)
 320                 return 0;
 321
 322         locales[i] = NULL;
 323
 324         (void) mkdir_parents(etc_localeconf, 0755);
 325         r = write_env_file(etc_localeconf, locales);
 326         if (r < 0)
 327                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 328
 329         log_info("%s written.", etc_localeconf);
 330         return 0;
 331 }
 332
 333 static int prompt_keymap(void) {
 334         _cleanup_strv_free_ char **kmaps = NULL;
 335         int r;
 336
 337         if (arg_keymap)
 338                 return 0;
 339
 340         if (!arg_prompt_keymap)
 341                 return 0;
 342
 343         r = get_keymaps(&kmaps);
 344         if (r == -ENOENT) /* no keymaps installed */
 345                 return r;
 346         if (r < 0)
 347                 return log_error_errno(r, "Failed to read keymaps: %m");
 348
 349         print_welcome();
 350
 351         return prompt_loop("Please enter system keymap name or number",
 352                            kmaps, 60, keymap_is_valid, &arg_keymap);
 353 }
 354
 355 static int process_keymap(void) {
 356         const char *etc_vconsoleconf;
 357         char **keymap;
 358         int r;
 359
 360         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 361         if (laccess(etc_vconsoleconf, F_OK) >= 0 && !arg_force)
 362                 return 0;
 363
 364         if (arg_copy_keymap && arg_root) {
 365
 366                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 367                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 368                 if (r != -ENOENT) {
 369                         if (r < 0)
 370                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 371
 372                         log_info("%s copied.", etc_vconsoleconf);
 373                         return 0;
 374                 }
 375         }
 376
 377         r = prompt_keymap();
 378         if (r == -ENOENT)
 379                 return 0; /* don't fail if no keymaps are installed */
 380         if (r < 0)
 381                 return r;
 382
 383         if (isempty(arg_keymap))
 384                 return 0;
 385
 386         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 387
 388         r = mkdir_parents(etc_vconsoleconf, 0755);
 389         if (r < 0)
 390                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 391
 392         r = write_env_file(etc_vconsoleconf, keymap);
 393         if (r < 0)
 394                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 395
 396         log_info("%s written.", etc_vconsoleconf);
 397         return 0;
 398 }
 399
 400 static bool timezone_is_valid_log_error(const char *name) {
 401         return timezone_is_valid(name, LOG_ERR);
 402 }
 403
 404 static int prompt_timezone(void) {
 405         _cleanup_strv_free_ char **zones = NULL;
 406         int r;
 407
 408         if (arg_timezone)
 409                 return 0;
 410
 411         if (!arg_prompt_timezone)
 412                 return 0;
 413
 414         r = get_timezones(&zones);
 415         if (r < 0)
 416                 return log_error_errno(r, "Cannot query timezone list: %m");
 417
 418         print_welcome();
 419
 420         r = prompt_loop("Please enter timezone name or number",
 421                         zones, 30, timezone_is_valid_log_error, &arg_timezone);
 422         if (r < 0)
 423                 return r;
 424
 425         return 0;
 426 }
 427
 428 static int process_timezone(void) {
 429         const char *etc_localtime, *e;
 430         int r;
 431
 432         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 433         if (laccess(etc_localtime, F_OK) >= 0 && !arg_force)
 434                 return 0;
 435
 436         if (arg_copy_timezone && arg_root) {
 437                 _cleanup_free_ char *p = NULL;
 438
 439                 r = readlink_malloc("/etc/localtime", &p);
 440                 if (r != -ENOENT) {
 441                         if (r < 0)
 442                                 return log_error_errno(r, "Failed to read host timezone: %m");
 443
 444                         (void) mkdir_parents(etc_localtime, 0755);
 445                         if (symlink(p, etc_localtime) < 0)
 446                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 447
 448                         log_info("%s copied.", etc_localtime);
 449                         return 0;
 450                 }
 451         }
 452
 453         r = prompt_timezone();
 454         if (r < 0)
 455                 return r;
 456
 457         if (isempty(arg_timezone))
 458                 return 0;
 459
 460         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 461
 462         (void) mkdir_parents(etc_localtime, 0755);
 463         if (symlink(e, etc_localtime) < 0)
 464                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 465
 466         log_info("%s written", etc_localtime);
 467         return 0;
 468 }
 469
 470 static int prompt_hostname(void) {
 471         int r;
 472
 473         if (arg_hostname)
 474                 return 0;
 475
 476         if (!arg_prompt_hostname)
 477                 return 0;
 478
 479         print_welcome();
 480         putchar('\n');
 481
 482         for (;;) {
 483                 _cleanup_free_ char *h = NULL;
 484
 485                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 486                 if (r < 0)
 487                         return log_error_errno(r, "Failed to query hostname: %m");
 488
 489                 if (isempty(h)) {
 490                         log_warning("No hostname entered, skipping.");
 491                         break;
 492                 }
 493
 494                 if (!hostname_is_valid(h, VALID_HOSTNAME_TRAILING_DOT)) {
 495                         log_error("Specified hostname invalid.");
 496                         continue;
 497                 }
 498
 499                 /* Get rid of the trailing dot that we allow, but don't want to see */
 500                 arg_hostname = hostname_cleanup(h);
 501                 h = NULL;
 502                 break;
 503         }
 504
 505         return 0;
 506 }
 507
 508 static int process_hostname(void) {
 509         const char *etc_hostname;
 510         int r;
 511
 512         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 513         if (laccess(etc_hostname, F_OK) >= 0 && !arg_force)
 514                 return 0;
 515
 516         r = prompt_hostname();
 517         if (r < 0)
 518                 return r;
 519
 520         if (isempty(arg_hostname))
 521                 return 0;
 522
 523         r = write_string_file(etc_hostname, arg_hostname,
 524                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 525                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 526         if (r < 0)
 527                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 528
 529         log_info("%s written.", etc_hostname);
 530         return 0;
 531 }
 532
 533 static int process_machine_id(void) {
 534         const char *etc_machine_id;
 535         char id[SD_ID128_STRING_MAX];
 536         int r;
 537
 538         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 539         if (laccess(etc_machine_id, F_OK) >= 0 && !arg_force)
 540                 return 0;
 541
 542         if (sd_id128_is_null(arg_machine_id))
 543                 return 0;
 544
 545         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 546                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 547                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 548         if (r < 0)
 549                 return log_error_errno(r, "Failed to write machine id: %m");
 550
 551         log_info("%s written.", etc_machine_id);
 552         return 0;
 553 }
 554
 555 static int prompt_root_password(void) {
 556         const char *msg1, *msg2;
 557         int r;
 558
 559         if (arg_root_password)
 560                 return 0;
 561
 562         if (!arg_prompt_root_password)
 563                 return 0;
 564
 565         print_welcome();
 566         putchar('\n');
 567
 568         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip):");
 569         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again:");
 570
 571         suggest_passwords();
 572
 573         for (;;) {
 574                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 575                 _cleanup_free_ char *error = NULL;
 576
 577                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 578                 if (r < 0)
 579                         return log_error_errno(r, "Failed to query root password: %m");
 580                 if (strv_length(a) != 1)
 581                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 582                                                "Received multiple passwords, where we expected one.");
 583
 584                 if (isempty(*a)) {
 585                         log_warning("No password entered, skipping.");
 586                         break;
 587                 }
 588
 589                 r = quality_check_password(*a, "root", &error);
 590                 if (r < 0)
 591                         return log_error_errno(r, "Failed to check quality of password: %m");
 592                 if (r == 0)
 593                         log_warning("Password is weak, accepting anyway: %s", error);
 594
 595                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 596                 if (r < 0)
 597                         return log_error_errno(r, "Failed to query root password: %m");
 598                 if (strv_length(b) != 1)
 599                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 600                                                "Received multiple passwords, where we expected one.");
 601
 602                 if (!streq(*a, *b)) {
 603                         log_error("Entered passwords did not match, please try again.");
 604                         continue;
 605                 }
 606
 607                 arg_root_password = TAKE_PTR(*a);
 608                 break;
 609         }
 610
 611         return 0;
 612 }
 613
 614 static int find_shell(const char *path, const char *root) {
 615         int r;
 616
 617         assert(path);
 618
 619         if (!valid_shell(path))
 620                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid shell", path);
 621
 622         r = chase_symlinks(path, root, CHASE_PREFIX_ROOT, NULL, NULL);
 623         if (r < 0) {
 624                 const char *p;
 625                 p = prefix_roota(root, path);
 626                 return log_error_errno(r, "Failed to resolve shell %s: %m", p);
 627         }
 628
 629         return 0;
 630 }
 631
 632 static int prompt_root_shell(void) {
 633         int r;
 634
 635         if (arg_root_shell || !arg_prompt_root_shell)
 636                 return 0;
 637
 638         print_welcome();
 639         putchar('\n');
 640
 641         for (;;) {
 642                 _cleanup_free_ char *s = NULL;
 643
 644                 r = ask_string(&s, "%s Please enter root shell for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 645                 if (r < 0)
 646                         return log_error_errno(r, "Failed to query root shell: %m");
 647
 648                 if (isempty(s)) {
 649                         log_warning("No shell entered, skipping.");
 650                         break;
 651                 }
 652
 653                 r = find_shell(s, arg_root);
 654                 if (r < 0)
 655                         continue;
 656
 657                 arg_root_shell = TAKE_PTR(s);
 658                 break;
 659         }
 660
 661         return 0;
 662 }
 663
 664 static int write_root_passwd(const char *passwd_path, const char *password, const char *shell) {
 665         _cleanup_fclose_ FILE *original = NULL, *passwd = NULL;
 666         _cleanup_(unlink_and_freep) char *passwd_tmp = NULL;
 667         int r;
 668
 669         assert(password);
 670
 671         r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp);
 672         if (r < 0)
 673                 return r;
 674
 675         original = fopen(passwd_path, "re");
 676         if (original) {
 677                 struct passwd *i;
 678
 679                 r = sync_rights(fileno(original), fileno(passwd));
 680                 if (r < 0)
 681                         return r;
 682
 683                 while ((r = fgetpwent_sane(original, &i)) > 0) {
 684
 685                         if (streq(i->pw_name, "root")) {
 686                                 i->pw_passwd = (char *) password;
 687                                 if (shell)
 688                                         i->pw_shell = (char *) shell;
 689                         }
 690
 691                         r = putpwent_sane(i, passwd);
 692                         if (r < 0)
 693                                 return r;
 694                 }
 695                 if (r < 0)
 696                         return r;
 697
 698         } else {
 699                 struct passwd root = {
 700                         .pw_name = (char *) "root",
 701                         .pw_passwd = (char *) password,
 702                         .pw_uid = 0,
 703                         .pw_gid = 0,
 704                         .pw_gecos = (char *) "Super User",
 705                         .pw_dir = (char *) "/root",
 706                         .pw_shell = (char *) (shell ?: "/bin/sh"),
 707                 };
 708
 709                 if (errno != ENOENT)
 710                         return -errno;
 711
 712                 r = fchmod(fileno(passwd), 0644);
 713                 if (r < 0)
 714                         return -errno;
 715
 716                 r = putpwent_sane(&root, passwd);
 717                 if (r < 0)
 718                         return r;
 719         }
 720
 721         r = fflush_sync_and_check(passwd);
 722         if (r < 0)
 723                 return r;
 724
 725         r = rename_and_apply_smack_floor_label(passwd_tmp, passwd_path);
 726         if (r < 0)
 727                 return r;
 728
 729         return 0;
 730 }
 731
 732 static int write_root_shadow(const char *shadow_path, const char *hashed_password) {
 733         _cleanup_fclose_ FILE *original = NULL, *shadow = NULL;
 734         _cleanup_(unlink_and_freep) char *shadow_tmp = NULL;
 735         int r;
 736
 737         assert(hashed_password);
 738
 739         r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp);
 740         if (r < 0)
 741                 return r;
 742
 743         original = fopen(shadow_path, "re");
 744         if (original) {
 745                 struct spwd *i;
 746
 747                 r = sync_rights(fileno(original), fileno(shadow));
 748                 if (r < 0)
 749                         return r;
 750
 751                 while ((r = fgetspent_sane(original, &i)) > 0) {
 752
 753                         if (streq(i->sp_namp, "root")) {
 754                                 i->sp_pwdp = (char *) hashed_password;
 755                                 i->sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 756                         }
 757
 758                         r = putspent_sane(i, shadow);
 759                         if (r < 0)
 760                                 return r;
 761                 }
 762                 if (r < 0)
 763                         return r;
 764
 765         } else {
 766                 struct spwd root = {
 767                         .sp_namp = (char*) "root",
 768                         .sp_pwdp = (char *) hashed_password,
 769                         .sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY),
 770                         .sp_min = -1,
 771                         .sp_max = -1,
 772                         .sp_warn = -1,
 773                         .sp_inact = -1,
 774                         .sp_expire = -1,
 775                         .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 776                 };
 777
 778                 if (errno != ENOENT)
 779                         return -errno;
 780
 781                 r = fchmod(fileno(shadow), 0000);
 782                 if (r < 0)
 783                         return -errno;
 784
 785                 r = putspent_sane(&root, shadow);
 786                 if (r < 0)
 787                         return r;
 788         }
 789
 790         r = fflush_sync_and_check(shadow);
 791         if (r < 0)
 792                 return r;
 793
 794         r = rename_and_apply_smack_floor_label(shadow_tmp, shadow_path);
 795         if (r < 0)
 796                 return r;
 797
 798         return 0;
 799 }
 800
 801 static int process_root_args(void) {
 802         _cleanup_close_ int lock = -1;
 803         _cleanup_(erase_and_freep) char *_hashed_password = NULL;
 804         const char *password, *hashed_password;
 805         const char *etc_passwd, *etc_shadow;
 806         int r;
 807
 808         etc_passwd = prefix_roota(arg_root, "/etc/passwd");
 809         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 810
 811         /* We only mess with passwd and shadow if both do not exist or --force is specified. These files are
 812          * tightly coupled and hence we make sure we have permission from the user to create/modify both
 813          * files. */
 814         if ((laccess(etc_passwd, F_OK) >= 0 || laccess(etc_shadow, F_OK) >= 0) && !arg_force)
 815                 return 0;
 816         /* Don't create/modify passwd and shadow if not asked */
 817         if (!(arg_root_password || arg_prompt_root_password || arg_copy_root_password || arg_delete_root_password ||
 818               arg_root_shell || arg_prompt_root_shell || arg_copy_root_shell))
 819                 return 0;
 820
 821         (void) mkdir_parents(etc_passwd, 0755);
 822
 823         lock = take_etc_passwd_lock(arg_root);
 824         if (lock < 0)
 825                 return log_error_errno(lock, "Failed to take a lock on %s: %m", etc_passwd);
 826
 827         if (arg_copy_root_shell && arg_root) {
 828                 struct passwd *p;
 829
 830                 errno = 0;
 831                 p = getpwnam("root");
 832                 if (!p)
 833                         return log_error_errno(errno_or_else(EIO), "Failed to find passwd entry for root: %m");
 834
 835                 r = free_and_strdup(&arg_root_shell, p->pw_shell);
 836                 if (r < 0)
 837                         return log_oom();
 838         }
 839
 840         r = prompt_root_shell();
 841         if (r < 0)
 842                 return r;
 843
 844         if (arg_copy_root_password && arg_root) {
 845                 struct spwd *p;
 846
 847                 errno = 0;
 848                 p = getspnam("root");
 849                 if (!p)
 850                         return log_error_errno(errno_or_else(EIO), "Failed to find shadow entry for root: %m");
 851
 852                 r = free_and_strdup(&arg_root_password, p->sp_pwdp);
 853                 if (r < 0)
 854                         return log_oom();
 855
 856                 arg_root_password_is_hashed = true;
 857         }
 858
 859         r = prompt_root_password();
 860         if (r < 0)
 861                 return r;
 862
 863         if (arg_root_password && arg_root_password_is_hashed) {
 864                 password = "x";
 865                 hashed_password = arg_root_password;
 866         } else if (arg_root_password) {
 867                 r = hash_password(arg_root_password, &_hashed_password);
 868                 if (r < 0)
 869                         return log_error_errno(r, "Failed to hash password: %m");
 870
 871                 password = "x";
 872                 hashed_password = _hashed_password;
 873
 874         } else if (arg_delete_root_password)
 875                 password = hashed_password = "";
 876         else
 877                 password = hashed_password = "!";
 878
 879         r = write_root_passwd(etc_passwd, password, arg_root_shell);
 880         if (r < 0)
 881                 return log_error_errno(r, "Failed to write %s: %m", etc_passwd);
 882
 883         log_info("%s written", etc_passwd);
 884
 885         r = write_root_shadow(etc_shadow, hashed_password);
 886         if (r < 0)
 887                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 888
 889         log_info("%s written.", etc_shadow);
 890         return 0;
 891 }
 892
 893 static int process_kernel_cmdline(void) {
 894         const char *etc_kernel_cmdline;
 895         int r;
 896
 897         etc_kernel_cmdline = prefix_roota(arg_root, "/etc/kernel/cmdline");
 898         if (laccess(etc_kernel_cmdline, F_OK) >= 0 && !arg_force)
 899                 return 0;
 900
 901         if (!arg_kernel_cmdline)
 902                 return 0;
 903
 904         r = write_string_file(etc_kernel_cmdline, arg_kernel_cmdline,
 905                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 906                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 907         if (r < 0)
 908                 return log_error_errno(r, "Failed to write %s: %m", etc_kernel_cmdline);
 909
 910         log_info("%s written.", etc_kernel_cmdline);
 911         return 0;
 912 }
 913
 914 static int help(void) {
 915         _cleanup_free_ char *link = NULL;
 916         int r;
 917
 918         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 919         if (r < 0)
 920                 return log_oom();
 921
 922         printf("%s [OPTIONS...]\n\n"
 923                "Configures basic settings of the system.\n\n"
 924                "  -h --help                                 Show this help\n"
 925                "     --version                              Show package version\n"
 926                "     --root=PATH                            Operate on an alternate filesystem root\n"
 927                "     --image=PATH                           Operate on an alternate filesystem image\n"
 928                "     --locale=LOCALE                        Set primary locale (LANG=)\n"
 929                "     --locale-messages=LOCALE               Set message locale (LC_MESSAGES=)\n"
 930                "     --keymap=KEYMAP                        Set keymap\n"
 931                "     --timezone=TIMEZONE                    Set timezone\n"
 932                "     --hostname=NAME                        Set hostname\n"
 933                "     --machine-ID=ID                        Set machine ID\n"
 934                "     --root-password=PASSWORD               Set root password from plaintext password\n"
 935                "     --root-password-file=FILE              Set root password from file\n"
 936                "     --root-password-hashed=HASHED_PASSWORD Set root password from hashed password\n"
 937                "     --root-shell=SHELL                     Set root shell\n"
 938                "     --prompt-locale                        Prompt the user for locale settings\n"
 939                "     --prompt-keymap                        Prompt the user for keymap settings\n"
 940                "     --prompt-timezone                      Prompt the user for timezone\n"
 941                "     --prompt-hostname                      Prompt the user for hostname\n"
 942                "     --prompt-root-password                 Prompt the user for root password\n"
 943                "     --prompt-root-shell                    Prompt the user for root shell\n"
 944                "     --prompt                               Prompt for all of the above\n"
 945                "     --copy-locale                          Copy locale from host\n"
 946                "     --copy-keymap                          Copy keymap from host\n"
 947                "     --copy-timezone                        Copy timezone from host\n"
 948                "     --copy-root-password                   Copy root password from host\n"
 949                "     --copy-root-shell                      Copy root shell from host\n"
 950                "     --copy                                 Copy locale, keymap, timezone, root password\n"
 951                "     --setup-machine-id                     Generate a new random machine ID\n"
 952                "     --force                                Overwrite existing files\n"
 953                "     --delete-root-password                 Delete root password\n"
 954                "     --welcome=no                           Disable the welcome text\n"
 955                "\nSee the %s for details.\n",
 956                program_invocation_short_name,
 957                link);
 958
 959         return 0;
 960 }
 961
 962 static int parse_argv(int argc, char *argv[]) {
 963
 964         enum {
 965                 ARG_VERSION = 0x100,
 966                 ARG_ROOT,
 967                 ARG_IMAGE,
 968                 ARG_LOCALE,
 969                 ARG_LOCALE_MESSAGES,
 970                 ARG_KEYMAP,
 971                 ARG_TIMEZONE,
 972                 ARG_HOSTNAME,
 973                 ARG_MACHINE_ID,
 974                 ARG_ROOT_PASSWORD,
 975                 ARG_ROOT_PASSWORD_FILE,
 976                 ARG_ROOT_PASSWORD_HASHED,
 977                 ARG_ROOT_SHELL,
 978                 ARG_KERNEL_COMMAND_LINE,
 979                 ARG_PROMPT,
 980                 ARG_PROMPT_LOCALE,
 981                 ARG_PROMPT_KEYMAP,
 982                 ARG_PROMPT_TIMEZONE,
 983                 ARG_PROMPT_HOSTNAME,
 984                 ARG_PROMPT_ROOT_PASSWORD,
 985                 ARG_PROMPT_ROOT_SHELL,
 986                 ARG_COPY,
 987                 ARG_COPY_LOCALE,
 988                 ARG_COPY_KEYMAP,
 989                 ARG_COPY_TIMEZONE,
 990                 ARG_COPY_ROOT_PASSWORD,
 991                 ARG_COPY_ROOT_SHELL,
 992                 ARG_SETUP_MACHINE_ID,
 993                 ARG_FORCE,
 994                 ARG_DELETE_ROOT_PASSWORD,
 995                 ARG_WELCOME,
 996         };
 997
 998         static const struct option options[] = {
 999                 { "help",                    no_argument,       NULL, 'h'                         },
1000                 { "version",                 no_argument,       NULL, ARG_VERSION                 },
1001                 { "root",                    required_argument, NULL, ARG_ROOT                    },
1002                 { "image",                   required_argument, NULL, ARG_IMAGE                   },
1003                 { "locale",                  required_argument, NULL, ARG_LOCALE                  },
1004                 { "locale-messages",         required_argument, NULL, ARG_LOCALE_MESSAGES         },
1005                 { "keymap",                  required_argument, NULL, ARG_KEYMAP                  },
1006                 { "timezone",                required_argument, NULL, ARG_TIMEZONE                },
1007                 { "hostname",                required_argument, NULL, ARG_HOSTNAME                },
1008                 { "machine-id",              required_argument, NULL, ARG_MACHINE_ID              },
1009                 { "root-password",           required_argument, NULL, ARG_ROOT_PASSWORD           },
1010                 { "root-password-file",      required_argument, NULL, ARG_ROOT_PASSWORD_FILE      },
1011                 { "root-password-hashed",    required_argument, NULL, ARG_ROOT_PASSWORD_HASHED    },
1012                 { "root-shell",              required_argument, NULL, ARG_ROOT_SHELL              },
1013                 { "kernel-command-line",     required_argument, NULL, ARG_KERNEL_COMMAND_LINE     },
1014                 { "prompt",                  no_argument,       NULL, ARG_PROMPT                  },
1015                 { "prompt-locale",           no_argument,       NULL, ARG_PROMPT_LOCALE           },
1016                 { "prompt-keymap",           no_argument,       NULL, ARG_PROMPT_KEYMAP           },
1017                 { "prompt-timezone",         no_argument,       NULL, ARG_PROMPT_TIMEZONE         },
1018                 { "prompt-hostname",         no_argument,       NULL, ARG_PROMPT_HOSTNAME         },
1019                 { "prompt-root-password",    no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD    },
1020                 { "prompt-root-shell",       no_argument,       NULL, ARG_PROMPT_ROOT_SHELL       },
1021                 { "copy",                    no_argument,       NULL, ARG_COPY                    },
1022                 { "copy-locale",             no_argument,       NULL, ARG_COPY_LOCALE             },
1023                 { "copy-keymap",             no_argument,       NULL, ARG_COPY_KEYMAP             },
1024                 { "copy-timezone",           no_argument,       NULL, ARG_COPY_TIMEZONE           },
1025                 { "copy-root-password",      no_argument,       NULL, ARG_COPY_ROOT_PASSWORD      },
1026                 { "copy-root-shell",         no_argument,       NULL, ARG_COPY_ROOT_SHELL         },
1027                 { "setup-machine-id",        no_argument,       NULL, ARG_SETUP_MACHINE_ID        },
1028                 { "force",                   no_argument,       NULL, ARG_FORCE                   },
1029                 { "delete-root-password",    no_argument,       NULL, ARG_DELETE_ROOT_PASSWORD    },
1030                 { "welcome",                 required_argument, NULL, ARG_WELCOME                 },
1031                 {}
1032         };
1033
1034         int r, c;
1035
1036         assert(argc >= 0);
1037         assert(argv);
1038
1039         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
1040
1041                 switch (c) {
1042
1043                 case 'h':
1044                         return help();
1045
1046                 case ARG_VERSION:
1047                         return version();
1048
1049                 case ARG_ROOT:
1050                         r = parse_path_argument(optarg, true, &arg_root);
1051                         if (r < 0)
1052                                 return r;
1053                         break;
1054
1055                 case ARG_IMAGE:
1056                         r = parse_path_argument(optarg, false, &arg_image);
1057                         if (r < 0)
1058                                 return r;
1059                         break;
1060
1061                 case ARG_LOCALE:
1062                         r = free_and_strdup(&arg_locale, optarg);
1063                         if (r < 0)
1064                                 return log_oom();
1065
1066                         break;
1067
1068                 case ARG_LOCALE_MESSAGES:
1069                         r = free_and_strdup(&arg_locale_messages, optarg);
1070                         if (r < 0)
1071                                 return log_oom();
1072
1073                         break;
1074
1075                 case ARG_KEYMAP:
1076                         if (!keymap_is_valid(optarg))
1077                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1078                                                        "Keymap %s is not valid.", optarg);
1079
1080                         r = free_and_strdup(&arg_keymap, optarg);
1081                         if (r < 0)
1082                                 return log_oom();
1083
1084                         break;
1085
1086                 case ARG_TIMEZONE:
1087                         if (!timezone_is_valid(optarg, LOG_ERR))
1088                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1089                                                        "Timezone %s is not valid.", optarg);
1090
1091                         r = free_and_strdup(&arg_timezone, optarg);
1092                         if (r < 0)
1093                                 return log_oom();
1094
1095                         break;
1096
1097                 case ARG_ROOT_PASSWORD:
1098                         r = free_and_strdup(&arg_root_password, optarg);
1099                         if (r < 0)
1100                                 return log_oom();
1101
1102                         arg_root_password_is_hashed = false;
1103                         break;
1104
1105                 case ARG_ROOT_PASSWORD_FILE:
1106                         arg_root_password = mfree(arg_root_password);
1107
1108                         r = read_one_line_file(optarg, &arg_root_password);
1109                         if (r < 0)
1110                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
1111
1112                         arg_root_password_is_hashed = false;
1113                         break;
1114
1115                 case ARG_ROOT_PASSWORD_HASHED:
1116                         r = free_and_strdup(&arg_root_password, optarg);
1117                         if (r < 0)
1118                                 return log_oom();
1119
1120                         arg_root_password_is_hashed = true;
1121                         break;
1122
1123                 case ARG_ROOT_SHELL:
1124                         r = find_shell(optarg, arg_root);
1125                         if (r < 0)
1126                                 return r;
1127
1128                         r = free_and_strdup(&arg_root_shell, optarg);
1129                         if (r < 0)
1130                                 return log_oom();
1131
1132                         break;
1133
1134                 case ARG_HOSTNAME:
1135                         if (!hostname_is_valid(optarg, VALID_HOSTNAME_TRAILING_DOT))
1136                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1137                                                        "Host name %s is not valid.", optarg);
1138
1139                         r = free_and_strdup(&arg_hostname, optarg);
1140                         if (r < 0)
1141                                 return log_oom();
1142
1143                         hostname_cleanup(arg_hostname);
1144                         break;
1145
1146                 case ARG_MACHINE_ID:
1147                         r = sd_id128_from_string(optarg, &arg_machine_id);
1148                         if (r < 0)
1149                                 return log_error_errno(r, "Failed to parse machine id %s.", optarg);
1150
1151                         break;
1152
1153                 case ARG_KERNEL_COMMAND_LINE:
1154                         r = free_and_strdup(&arg_kernel_cmdline, optarg);
1155                         if (r < 0)
1156                                 return log_oom();
1157
1158                         break;
1159
1160                 case ARG_PROMPT:
1161                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname =
1162                                 arg_prompt_root_password = arg_prompt_root_shell = true;
1163                         break;
1164
1165                 case ARG_PROMPT_LOCALE:
1166                         arg_prompt_locale = true;
1167                         break;
1168
1169                 case ARG_PROMPT_KEYMAP:
1170                         arg_prompt_keymap = true;
1171                         break;
1172
1173                 case ARG_PROMPT_TIMEZONE:
1174                         arg_prompt_timezone = true;
1175                         break;
1176
1177                 case ARG_PROMPT_HOSTNAME:
1178                         arg_prompt_hostname = true;
1179                         break;
1180
1181                 case ARG_PROMPT_ROOT_PASSWORD:
1182                         arg_prompt_root_password = true;
1183                         break;
1184
1185                 case ARG_PROMPT_ROOT_SHELL:
1186                         arg_prompt_root_shell = true;
1187                         break;
1188
1189                 case ARG_COPY:
1190                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password =
1191                                 arg_copy_root_shell = true;
1192                         break;
1193
1194                 case ARG_COPY_LOCALE:
1195                         arg_copy_locale = true;
1196                         break;
1197
1198                 case ARG_COPY_KEYMAP:
1199                         arg_copy_keymap = true;
1200                         break;
1201
1202                 case ARG_COPY_TIMEZONE:
1203                         arg_copy_timezone = true;
1204                         break;
1205
1206                 case ARG_COPY_ROOT_PASSWORD:
1207                         arg_copy_root_password = true;
1208                         break;
1209
1210                 case ARG_COPY_ROOT_SHELL:
1211                         arg_copy_root_shell = true;
1212                         break;
1213
1214                 case ARG_SETUP_MACHINE_ID:
1215                         r = sd_id128_randomize(&arg_machine_id);
1216                         if (r < 0)
1217                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
1218
1219                         break;
1220
1221                 case ARG_FORCE:
1222                         arg_force = true;
1223                         break;
1224
1225                 case ARG_DELETE_ROOT_PASSWORD:
1226                         arg_delete_root_password = true;
1227                         break;
1228
1229                 case ARG_WELCOME:
1230                         r = parse_boolean(optarg);
1231                         if (r < 0)
1232                                 return log_error_errno(r, "Failed to parse --welcome= argument: %s", optarg);
1233
1234                         arg_welcome = r;
1235                         break;
1236
1237                 case '?':
1238                         return -EINVAL;
1239
1240                 default:
1241                         assert_not_reached("Unhandled option");
1242                 }
1243
1244         /* We check if the specified locale strings are valid down here, so that we can take --root= into
1245          * account when looking for the locale files. */
1246
1247         if (arg_locale && !locale_is_ok(arg_locale))
1248                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale);
1249         if (arg_locale_messages && !locale_is_ok(arg_locale_messages))
1250                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages);
1251
1252         if (arg_delete_root_password && (arg_copy_root_password || arg_root_password || arg_prompt_root_password))
1253                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1254                                        "--delete-root-password cannot be combined with other root password options");
1255
1256         if (arg_image && arg_root)
1257                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
1258
1259         return 1;
1260 }
1261
1262 static int run(int argc, char *argv[]) {
1263         _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
1264         _cleanup_(decrypted_image_unrefp) DecryptedImage *decrypted_image = NULL;
1265         _cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL;
1266         int r;
1267
1268         r = parse_argv(argc, argv);
1269         if (r <= 0)
1270                 return r;
1271
1272         log_setup();
1273
1274         umask(0022);
1275
1276         if (!arg_root && !arg_image) {
1277                 bool enabled;
1278
1279                 /* If we are called without --root=/--image= let's honour the systemd.firstboot kernel
1280                  * command line option, because we are called to provision the host with basic settings (as
1281                  * opposed to some other file system tree/image) */
1282
1283                 r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
1284                 if (r < 0)
1285                         return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
1286                 if (r > 0 && !enabled)
1287                         return 0; /* disabled */
1288         }
1289
1290         if (arg_image) {
1291                 assert(!arg_root);
1292
1293                 r = mount_image_privately_interactively(
1294                                 arg_image,
1295                                 DISSECT_IMAGE_REQUIRE_ROOT|DISSECT_IMAGE_VALIDATE_OS|DISSECT_IMAGE_RELAX_VAR_CHECK|DISSECT_IMAGE_FSCK,
1296                                 &unlink_dir,
1297                                 &loop_device,
1298                                 &decrypted_image);
1299                 if (r < 0)
1300                         return r;
1301
1302                 arg_root = strdup(unlink_dir);
1303                 if (!arg_root)
1304                         return log_oom();
1305         }
1306
1307         r = process_locale();
1308         if (r < 0)
1309                 return r;
1310
1311         r = process_keymap();
1312         if (r < 0)
1313                 return r;
1314
1315         r = process_timezone();
1316         if (r < 0)
1317                 return r;
1318
1319         r = process_hostname();
1320         if (r < 0)
1321                 return r;
1322
1323         r = process_machine_id();
1324         if (r < 0)
1325                 return r;
1326
1327         r = process_root_args();
1328         if (r < 0)
1329                 return r;
1330
1331         r = process_kernel_cmdline();
1332         if (r < 0)
1333                 return r;
1334
1335         return 0;
1336 }
1337
1338 DEFINE_MAIN_FUNCTION(run);