src/firstboot/firstboot.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   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-util.h"
  28 #include "path-util.h"
  29 #include "pretty-print.h"
  30 #include "proc-cmdline.h"
  31 #include "pwquality-util.h"
  32 #include "random-util.h"
  33 #include "string-util.h"
  34 #include "strv.h"
  35 #include "terminal-util.h"
  36 #include "time-util.h"
  37 #include "tmpfile-util-label.h"
  38 #include "tmpfile-util.h"
  39 #include "umask-util.h"
  40 #include "user-util.h"
  41
  42 static char *arg_root = NULL;
  43 static char *arg_image = NULL;
  44 static char *arg_locale = NULL;  /* $LANG */
  45 static char *arg_keymap = NULL;
  46 static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
  47 static char *arg_timezone = NULL;
  48 static char *arg_hostname = NULL;
  49 static sd_id128_t arg_machine_id = {};
  50 static char *arg_root_password = NULL;
  51 static char *arg_root_shell = NULL;
  52 static char *arg_kernel_cmdline = NULL;
  53 static bool arg_prompt_locale = false;
  54 static bool arg_prompt_keymap = false;
  55 static bool arg_prompt_timezone = false;
  56 static bool arg_prompt_hostname = false;
  57 static bool arg_prompt_root_password = false;
  58 static bool arg_prompt_root_shell = false;
  59 static bool arg_copy_locale = false;
  60 static bool arg_copy_keymap = false;
  61 static bool arg_copy_timezone = false;
  62 static bool arg_copy_root_password = false;
  63 static bool arg_copy_root_shell = false;
  64 static bool arg_force = false;
  65 static bool arg_delete_root_password = false;
  66 static bool arg_root_password_is_hashed = false;
  67 static bool arg_welcome = true;
  68
  69 STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
  70 STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
  71 STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
  72 STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
  73 STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
  74 STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
  75 STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
  76 STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
  77
  78 static bool press_any_key(void) {
  79         char k = 0;
  80         bool need_nl = true;
  81
  82         printf("-- Press any key to proceed --");
  83         fflush(stdout);
  84
  85         (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
  86
  87         if (need_nl)
  88                 putchar('\n');
  89
  90         return k != 'q';
  91 }
  92
  93 static void print_welcome(void) {
  94         _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
  95         static bool done = false;
  96         const char *pn, *ac;
  97         int r;
  98
  99         if (!arg_welcome)
 100                 return;
 101
 102         if (done)
 103                 return;
 104
 105         r = parse_os_release(
 106                         arg_root,
 107                         "PRETTY_NAME", &pretty_name,
 108                         "ANSI_COLOR", &ansi_color,
 109                         NULL);
 110         if (r < 0)
 111                 log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
 112                                "Failed to read os-release file, ignoring: %m");
 113
 114         pn = isempty(pretty_name) ? "Linux" : pretty_name;
 115         ac = isempty(ansi_color) ? "0" : ansi_color;
 116
 117         if (colors_enabled())
 118                 printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ac, pn);
 119         else
 120                 printf("\nWelcome to your new installation of %s!\n", pn);
 121
 122         printf("\nPlease configure your system!\n\n");
 123
 124         press_any_key();
 125
 126         done = true;
 127 }
 128
 129 static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
 130         unsigned break_lines, break_modulo;
 131         size_t n, per_column, i, j;
 132
 133         assert(n_columns > 0);
 134
 135         n = strv_length(x);
 136         per_column = DIV_ROUND_UP(n, n_columns);
 137
 138         break_lines = lines();
 139         if (break_lines > 2)
 140                 break_lines--;
 141
 142         /* The first page gets two extra lines, since we want to show
 143          * a title */
 144         break_modulo = break_lines;
 145         if (break_modulo > 3)
 146                 break_modulo -= 3;
 147
 148         for (i = 0; i < per_column; i++) {
 149
 150                 for (j = 0; j < n_columns; j ++) {
 151                         _cleanup_free_ char *e = NULL;
 152
 153                         if (j * per_column + i >= n)
 154                                 break;
 155
 156                         e = ellipsize(x[j * per_column + i], width, percentage);
 157                         if (!e)
 158                                 return log_oom();
 159
 160                         printf("%4zu) %-*s", j * per_column + i + 1, width, e);
 161                 }
 162
 163                 putchar('\n');
 164
 165                 /* on the first screen we reserve 2 extra lines for the title */
 166                 if (i % break_lines == break_modulo) {
 167                         if (!press_any_key())
 168                                 return 0;
 169                 }
 170         }
 171
 172         return 0;
 173 }
 174
 175 static int prompt_loop(const char *text, char **l, unsigned percentage, bool (*is_valid)(const char *name), char **ret) {
 176         int r;
 177
 178         assert(text);
 179         assert(is_valid);
 180         assert(ret);
 181
 182         for (;;) {
 183                 _cleanup_free_ char *p = NULL;
 184                 unsigned u;
 185
 186                 r = ask_string(&p, "%s %s (empty to skip, \"list\" to list options): ",
 187                                special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
 188                 if (r < 0)
 189                         return log_error_errno(r, "Failed to query user: %m");
 190
 191                 if (isempty(p)) {
 192                         log_warning("No data entered, skipping.");
 193                         return 0;
 194                 }
 195
 196                 if (streq(p, "list")) {
 197                         r = show_menu(l, 3, 22, percentage);
 198                         if (r < 0)
 199                                 return r;
 200
 201                         putchar('\n');
 202                         continue;
 203                 };
 204
 205                 r = safe_atou(p, &u);
 206                 if (r >= 0) {
 207                         if (u <= 0 || u > strv_length(l)) {
 208                                 log_error("Specified entry number out of range.");
 209                                 continue;
 210                         }
 211
 212                         log_info("Selected '%s'.", l[u-1]);
 213                         if (free_and_strdup(ret, l[u-1]) < 0)
 214                                 return log_oom();
 215
 216                         return 0;
 217                 }
 218
 219                 if (!is_valid(p)) {
 220                         log_error("Entered data invalid.");
 221                         continue;
 222                 }
 223
 224                 return free_and_replace(*ret, p);
 225         }
 226 }
 227
 228 static bool locale_is_ok(const char *name) {
 229
 230         if (arg_root)
 231                 return locale_is_valid(name);
 232
 233         return locale_is_installed(name) > 0;
 234 }
 235
 236 static int prompt_locale(void) {
 237         _cleanup_strv_free_ char **locales = NULL;
 238         int r;
 239
 240         if (arg_locale || arg_locale_messages)
 241                 return 0;
 242
 243         if (!arg_prompt_locale)
 244                 return 0;
 245
 246         r = get_locales(&locales);
 247         if (r < 0)
 248                 return log_error_errno(r, "Cannot query locales list: %m");
 249
 250         if (strv_isempty(locales))
 251                 log_debug("No locales found, skipping locale selection.");
 252         else if (strv_length(locales) == 1) {
 253
 254                 if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
 255                         log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
 256                 else {
 257                         log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
 258
 259                         arg_locale = strdup(locales[0]);
 260                         if (!arg_locale)
 261                                 return log_oom();
 262
 263                         /* Not setting arg_locale_message here, since it defaults to LANG anyway */
 264                 }
 265         } else {
 266                 print_welcome();
 267
 268                 r = prompt_loop("Please enter system locale name or number",
 269                                 locales, 60, locale_is_ok, &arg_locale);
 270                 if (r < 0)
 271                         return r;
 272
 273                 if (isempty(arg_locale))
 274                         return 0;
 275
 276                 r = prompt_loop("Please enter system message locale name or number",
 277                                 locales, 60, locale_is_ok, &arg_locale_messages);
 278                 if (r < 0)
 279                         return r;
 280
 281                 /* Suppress the messages setting if it's the same as the main locale anyway */
 282                 if (streq_ptr(arg_locale, arg_locale_messages))
 283                         arg_locale_messages = mfree(arg_locale_messages);
 284         }
 285
 286         return 0;
 287 }
 288
 289 static int process_locale(void) {
 290         const char *etc_localeconf;
 291         char* locales[3];
 292         unsigned i = 0;
 293         int r;
 294
 295         etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
 296         if (laccess(etc_localeconf, F_OK) >= 0 && !arg_force)
 297                 return 0;
 298
 299         if (arg_copy_locale && arg_root) {
 300
 301                 (void) mkdir_parents(etc_localeconf, 0755);
 302                 r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
 303                 if (r != -ENOENT) {
 304                         if (r < 0)
 305                                 return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
 306
 307                         log_info("%s copied.", etc_localeconf);
 308                         return 0;
 309                 }
 310         }
 311
 312         r = prompt_locale();
 313         if (r < 0)
 314                 return r;
 315
 316         if (!isempty(arg_locale))
 317                 locales[i++] = strjoina("LANG=", arg_locale);
 318         if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
 319                 locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
 320
 321         if (i == 0)
 322                 return 0;
 323
 324         locales[i] = NULL;
 325
 326         (void) mkdir_parents(etc_localeconf, 0755);
 327         r = write_env_file(etc_localeconf, locales);
 328         if (r < 0)
 329                 return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
 330
 331         log_info("%s written.", etc_localeconf);
 332         return 0;
 333 }
 334
 335 static int prompt_keymap(void) {
 336         _cleanup_strv_free_ char **kmaps = NULL;
 337         int r;
 338
 339         if (arg_keymap)
 340                 return 0;
 341
 342         if (!arg_prompt_keymap)
 343                 return 0;
 344
 345         r = get_keymaps(&kmaps);
 346         if (r == -ENOENT) /* no keymaps installed */
 347                 return r;
 348         if (r < 0)
 349                 return log_error_errno(r, "Failed to read keymaps: %m");
 350
 351         print_welcome();
 352
 353         return prompt_loop("Please enter system keymap name or number",
 354                            kmaps, 60, keymap_is_valid, &arg_keymap);
 355 }
 356
 357 static int process_keymap(void) {
 358         const char *etc_vconsoleconf;
 359         char **keymap;
 360         int r;
 361
 362         etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
 363         if (laccess(etc_vconsoleconf, F_OK) >= 0 && !arg_force)
 364                 return 0;
 365
 366         if (arg_copy_keymap && arg_root) {
 367
 368                 (void) mkdir_parents(etc_vconsoleconf, 0755);
 369                 r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
 370                 if (r != -ENOENT) {
 371                         if (r < 0)
 372                                 return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
 373
 374                         log_info("%s copied.", etc_vconsoleconf);
 375                         return 0;
 376                 }
 377         }
 378
 379         r = prompt_keymap();
 380         if (r == -ENOENT)
 381                 return 0; /* don't fail if no keymaps are installed */
 382         if (r < 0)
 383                 return r;
 384
 385         if (isempty(arg_keymap))
 386                 return 0;
 387
 388         keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
 389
 390         r = mkdir_parents(etc_vconsoleconf, 0755);
 391         if (r < 0)
 392                 return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
 393
 394         r = write_env_file(etc_vconsoleconf, keymap);
 395         if (r < 0)
 396                 return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
 397
 398         log_info("%s written.", etc_vconsoleconf);
 399         return 0;
 400 }
 401
 402 static bool timezone_is_valid_log_error(const char *name) {
 403         return timezone_is_valid(name, LOG_ERR);
 404 }
 405
 406 static int prompt_timezone(void) {
 407         _cleanup_strv_free_ char **zones = NULL;
 408         int r;
 409
 410         if (arg_timezone)
 411                 return 0;
 412
 413         if (!arg_prompt_timezone)
 414                 return 0;
 415
 416         r = get_timezones(&zones);
 417         if (r < 0)
 418                 return log_error_errno(r, "Cannot query timezone list: %m");
 419
 420         print_welcome();
 421
 422         r = prompt_loop("Please enter timezone name or number",
 423                         zones, 30, timezone_is_valid_log_error, &arg_timezone);
 424         if (r < 0)
 425                 return r;
 426
 427         return 0;
 428 }
 429
 430 static int process_timezone(void) {
 431         const char *etc_localtime, *e;
 432         int r;
 433
 434         etc_localtime = prefix_roota(arg_root, "/etc/localtime");
 435         if (laccess(etc_localtime, F_OK) >= 0 && !arg_force)
 436                 return 0;
 437
 438         if (arg_copy_timezone && arg_root) {
 439                 _cleanup_free_ char *p = NULL;
 440
 441                 r = readlink_malloc("/etc/localtime", &p);
 442                 if (r != -ENOENT) {
 443                         if (r < 0)
 444                                 return log_error_errno(r, "Failed to read host timezone: %m");
 445
 446                         (void) mkdir_parents(etc_localtime, 0755);
 447                         if (symlink(p, etc_localtime) < 0)
 448                                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 449
 450                         log_info("%s copied.", etc_localtime);
 451                         return 0;
 452                 }
 453         }
 454
 455         r = prompt_timezone();
 456         if (r < 0)
 457                 return r;
 458
 459         if (isempty(arg_timezone))
 460                 return 0;
 461
 462         e = strjoina("../usr/share/zoneinfo/", arg_timezone);
 463
 464         (void) mkdir_parents(etc_localtime, 0755);
 465         if (symlink(e, etc_localtime) < 0)
 466                 return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
 467
 468         log_info("%s written", etc_localtime);
 469         return 0;
 470 }
 471
 472 static int prompt_hostname(void) {
 473         int r;
 474
 475         if (arg_hostname)
 476                 return 0;
 477
 478         if (!arg_prompt_hostname)
 479                 return 0;
 480
 481         print_welcome();
 482         putchar('\n');
 483
 484         for (;;) {
 485                 _cleanup_free_ char *h = NULL;
 486
 487                 r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 488                 if (r < 0)
 489                         return log_error_errno(r, "Failed to query hostname: %m");
 490
 491                 if (isempty(h)) {
 492                         log_warning("No hostname entered, skipping.");
 493                         break;
 494                 }
 495
 496                 if (!hostname_is_valid(h, true)) {
 497                         log_error("Specified hostname invalid.");
 498                         continue;
 499                 }
 500
 501                 /* Get rid of the trailing dot that we allow, but don't want to see */
 502                 arg_hostname = hostname_cleanup(h);
 503                 h = NULL;
 504                 break;
 505         }
 506
 507         return 0;
 508 }
 509
 510 static int process_hostname(void) {
 511         const char *etc_hostname;
 512         int r;
 513
 514         etc_hostname = prefix_roota(arg_root, "/etc/hostname");
 515         if (laccess(etc_hostname, F_OK) >= 0 && !arg_force)
 516                 return 0;
 517
 518         r = prompt_hostname();
 519         if (r < 0)
 520                 return r;
 521
 522         if (isempty(arg_hostname))
 523                 return 0;
 524
 525         r = write_string_file(etc_hostname, arg_hostname,
 526                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 527                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 528         if (r < 0)
 529                 return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
 530
 531         log_info("%s written.", etc_hostname);
 532         return 0;
 533 }
 534
 535 static int process_machine_id(void) {
 536         const char *etc_machine_id;
 537         char id[SD_ID128_STRING_MAX];
 538         int r;
 539
 540         etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
 541         if (laccess(etc_machine_id, F_OK) >= 0 && !arg_force)
 542                 return 0;
 543
 544         if (sd_id128_is_null(arg_machine_id))
 545                 return 0;
 546
 547         r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
 548                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 549                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 550         if (r < 0)
 551                 return log_error_errno(r, "Failed to write machine id: %m");
 552
 553         log_info("%s written.", etc_machine_id);
 554         return 0;
 555 }
 556
 557 static int prompt_root_password(void) {
 558         const char *msg1, *msg2;
 559         int r;
 560
 561         if (arg_root_password)
 562                 return 0;
 563
 564         if (!arg_prompt_root_password)
 565                 return 0;
 566
 567         print_welcome();
 568         putchar('\n');
 569
 570         msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip):");
 571         msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again:");
 572
 573         suggest_passwords();
 574
 575         for (;;) {
 576                 _cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
 577                 _cleanup_free_ char *error = NULL;
 578
 579                 r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
 580                 if (r < 0)
 581                         return log_error_errno(r, "Failed to query root password: %m");
 582                 if (strv_length(a) != 1)
 583                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 584                                                "Received multiple passwords, where we expected one.");
 585
 586                 if (isempty(*a)) {
 587                         log_warning("No password entered, skipping.");
 588                         break;
 589                 }
 590
 591                 r = quality_check_password(*a, "root", &error);
 592                 if (r < 0)
 593                         return log_error_errno(r, "Failed to check quality of password: %m");
 594                 if (r == 0)
 595                         log_warning("Password is weak, accepting anyway: %s", error);
 596
 597                 r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
 598                 if (r < 0)
 599                         return log_error_errno(r, "Failed to query root password: %m");
 600                 if (strv_length(b) != 1)
 601                         return log_error_errno(SYNTHETIC_ERRNO(EIO),
 602                                                "Received multiple passwords, where we expected one.");
 603
 604                 if (!streq(*a, *b)) {
 605                         log_error("Entered passwords did not match, please try again.");
 606                         continue;
 607                 }
 608
 609                 arg_root_password = TAKE_PTR(*a);
 610                 break;
 611         }
 612
 613         return 0;
 614 }
 615
 616 static int find_shell(const char *path, const char *root) {
 617         int r;
 618
 619         assert(path);
 620
 621         if (!valid_shell(path))
 622                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid shell", path);
 623
 624         r = chase_symlinks(path, root, CHASE_PREFIX_ROOT, NULL, NULL);
 625         if (r < 0) {
 626                 const char *p;
 627                 p = prefix_roota(root, path);
 628                 return log_error_errno(r, "Failed to resolve shell %s: %m", p);
 629         }
 630
 631         return 0;
 632 }
 633
 634 static int prompt_root_shell(void) {
 635         int r;
 636
 637         if (arg_root_shell || !arg_prompt_root_shell)
 638                 return 0;
 639
 640         print_welcome();
 641         putchar('\n');
 642
 643         for (;;) {
 644                 _cleanup_free_ char *s = NULL;
 645
 646                 r = ask_string(&s, "%s Please enter root shell for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
 647                 if (r < 0)
 648                         return log_error_errno(r, "Failed to query root shell: %m");
 649
 650                 if (isempty(s)) {
 651                         log_warning("No shell entered, skipping.");
 652                         break;
 653                 }
 654
 655                 r = find_shell(s, arg_root);
 656                 if (r < 0)
 657                         continue;
 658
 659                 arg_root_shell = TAKE_PTR(s);
 660                 break;
 661         }
 662
 663         return 0;
 664 }
 665
 666 static int write_root_passwd(const char *passwd_path, const char *password, const char *shell) {
 667         _cleanup_fclose_ FILE *original = NULL, *passwd = NULL;
 668         _cleanup_(unlink_and_freep) char *passwd_tmp = NULL;
 669         int r;
 670
 671         assert(password);
 672
 673         r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp);
 674         if (r < 0)
 675                 return r;
 676
 677         original = fopen(passwd_path, "re");
 678         if (original) {
 679                 struct passwd *i;
 680
 681                 r = sync_rights(fileno(original), fileno(passwd));
 682                 if (r < 0)
 683                         return r;
 684
 685                 while ((r = fgetpwent_sane(original, &i)) > 0) {
 686
 687                         if (streq(i->pw_name, "root")) {
 688                                 i->pw_passwd = (char *) password;
 689                                 if (shell)
 690                                         i->pw_shell = (char *) shell;
 691                         }
 692
 693                         r = putpwent_sane(i, passwd);
 694                         if (r < 0)
 695                                 return r;
 696                 }
 697                 if (r < 0)
 698                         return r;
 699
 700         } else {
 701                 struct passwd root = {
 702                         .pw_name = (char *) "root",
 703                         .pw_passwd = (char *) password,
 704                         .pw_uid = 0,
 705                         .pw_gid = 0,
 706                         .pw_gecos = (char *) "Super User",
 707                         .pw_dir = (char *) "/root",
 708                         .pw_shell = (char *) (shell ?: "/bin/sh"),
 709                 };
 710
 711                 if (errno != ENOENT)
 712                         return -errno;
 713
 714                 r = fchmod(fileno(passwd), 0644);
 715                 if (r < 0)
 716                         return -errno;
 717
 718                 r = putpwent_sane(&root, passwd);
 719                 if (r < 0)
 720                         return r;
 721         }
 722
 723         r = fflush_sync_and_check(passwd);
 724         if (r < 0)
 725                 return r;
 726
 727         r = rename_and_apply_smack_floor_label(passwd_tmp, passwd_path);
 728         if (r < 0)
 729                 return r;
 730
 731         return 0;
 732 }
 733
 734 static int write_root_shadow(const char *shadow_path, const char *hashed_password) {
 735         _cleanup_fclose_ FILE *original = NULL, *shadow = NULL;
 736         _cleanup_(unlink_and_freep) char *shadow_tmp = NULL;
 737         int r;
 738
 739         assert(hashed_password);
 740
 741         r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp);
 742         if (r < 0)
 743                 return r;
 744
 745         original = fopen(shadow_path, "re");
 746         if (original) {
 747                 struct spwd *i;
 748
 749                 r = sync_rights(fileno(original), fileno(shadow));
 750                 if (r < 0)
 751                         return r;
 752
 753                 while ((r = fgetspent_sane(original, &i)) > 0) {
 754
 755                         if (streq(i->sp_namp, "root")) {
 756                                 i->sp_pwdp = (char *) hashed_password;
 757                                 i->sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
 758                         }
 759
 760                         r = putspent_sane(i, shadow);
 761                         if (r < 0)
 762                                 return r;
 763                 }
 764                 if (r < 0)
 765                         return r;
 766
 767         } else {
 768                 struct spwd root = {
 769                         .sp_namp = (char*) "root",
 770                         .sp_pwdp = (char *) hashed_password,
 771                         .sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY),
 772                         .sp_min = -1,
 773                         .sp_max = -1,
 774                         .sp_warn = -1,
 775                         .sp_inact = -1,
 776                         .sp_expire = -1,
 777                         .sp_flag = (unsigned long) -1, /* this appears to be what everybody does ... */
 778                 };
 779
 780                 if (errno != ENOENT)
 781                         return -errno;
 782
 783                 r = fchmod(fileno(shadow), 0000);
 784                 if (r < 0)
 785                         return -errno;
 786
 787                 r = putspent_sane(&root, shadow);
 788                 if (r < 0)
 789                         return r;
 790         }
 791
 792         r = fflush_sync_and_check(shadow);
 793         if (r < 0)
 794                 return r;
 795
 796         r = rename_and_apply_smack_floor_label(shadow_tmp, shadow_path);
 797         if (r < 0)
 798                 return r;
 799
 800         return 0;
 801 }
 802
 803 static int process_root_args(void) {
 804         _cleanup_close_ int lock = -1;
 805         _cleanup_(erase_and_freep) char *_hashed_password = NULL;
 806         const char *password, *hashed_password;
 807         const char *etc_passwd, *etc_shadow;
 808         int r;
 809
 810         etc_passwd = prefix_roota(arg_root, "/etc/passwd");
 811         etc_shadow = prefix_roota(arg_root, "/etc/shadow");
 812
 813         /* We only mess with passwd and shadow if both do not exist or --force is specified. These files are
 814          * tightly coupled and hence we make sure we have permission from the user to create/modify both
 815          * files. */
 816         if ((laccess(etc_passwd, F_OK) >= 0 || laccess(etc_shadow, F_OK) >= 0) && !arg_force)
 817                 return 0;
 818         /* Don't create/modify passwd and shadow if not asked */
 819         if (!(arg_root_password || arg_prompt_root_password || arg_copy_root_password || arg_delete_root_password ||
 820               arg_root_shell || arg_prompt_root_shell || arg_copy_root_shell))
 821                 return 0;
 822
 823         (void) mkdir_parents(etc_passwd, 0755);
 824
 825         lock = take_etc_passwd_lock(arg_root);
 826         if (lock < 0)
 827                 return log_error_errno(lock, "Failed to take a lock on %s: %m", etc_passwd);
 828
 829         if (arg_copy_root_shell && arg_root) {
 830                 struct passwd *p;
 831
 832                 errno = 0;
 833                 p = getpwnam("root");
 834                 if (!p)
 835                         return log_error_errno(errno_or_else(EIO), "Failed to find passwd entry for root: %m");
 836
 837                 r = free_and_strdup(&arg_root_shell, p->pw_shell);
 838                 if (r < 0)
 839                         return log_oom();
 840         }
 841
 842         r = prompt_root_shell();
 843         if (r < 0)
 844                 return r;
 845
 846         if (arg_copy_root_password && arg_root) {
 847                 struct spwd *p;
 848
 849                 errno = 0;
 850                 p = getspnam("root");
 851                 if (!p)
 852                         return log_error_errno(errno_or_else(EIO), "Failed to find shadow entry for root: %m");
 853
 854                 r = free_and_strdup(&arg_root_password, p->sp_pwdp);
 855                 if (r < 0)
 856                         return log_oom();
 857
 858                 arg_root_password_is_hashed = true;
 859         }
 860
 861         r = prompt_root_password();
 862         if (r < 0)
 863                 return r;
 864
 865         if (arg_root_password && arg_root_password_is_hashed) {
 866                 password = "x";
 867                 hashed_password = arg_root_password;
 868         } else if (arg_root_password) {
 869                 r = hash_password(arg_root_password, &_hashed_password);
 870                 if (r < 0)
 871                         return log_error_errno(r, "Failed to hash password: %m");
 872
 873                 password = "x";
 874                 hashed_password = _hashed_password;
 875
 876         } else if (arg_delete_root_password)
 877                 password = hashed_password = "";
 878         else
 879                 password = hashed_password = "!";
 880
 881         r = write_root_passwd(etc_passwd, password, arg_root_shell);
 882         if (r < 0)
 883                 return log_error_errno(r, "Failed to write %s: %m", etc_passwd);
 884
 885         log_info("%s written", etc_passwd);
 886
 887         r = write_root_shadow(etc_shadow, hashed_password);
 888         if (r < 0)
 889                 return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
 890
 891         log_info("%s written.", etc_shadow);
 892         return 0;
 893 }
 894
 895 static int process_kernel_cmdline(void) {
 896         const char *etc_kernel_cmdline;
 897         int r;
 898
 899         etc_kernel_cmdline = prefix_roota(arg_root, "/etc/kernel/cmdline");
 900         if (laccess(etc_kernel_cmdline, F_OK) >= 0 && !arg_force)
 901                 return 0;
 902
 903         if (!arg_kernel_cmdline)
 904                 return 0;
 905
 906         r = write_string_file(etc_kernel_cmdline, arg_kernel_cmdline,
 907                               WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
 908                               (arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
 909         if (r < 0)
 910                 return log_error_errno(r, "Failed to write %s: %m", etc_kernel_cmdline);
 911
 912         log_info("%s written.", etc_kernel_cmdline);
 913         return 0;
 914 }
 915
 916 static int help(void) {
 917         _cleanup_free_ char *link = NULL;
 918         int r;
 919
 920         r = terminal_urlify_man("systemd-firstboot", "1", &link);
 921         if (r < 0)
 922                 return log_oom();
 923
 924         printf("%s [OPTIONS...]\n\n"
 925                "Configures basic settings of the system.\n\n"
 926                "  -h --help                                 Show this help\n"
 927                "     --version                              Show package version\n"
 928                "     --root=PATH                            Operate on an alternate filesystem root\n"
 929                "     --image=PATH                           Operate on an alternate filesystem image\n"
 930                "     --locale=LOCALE                        Set primary locale (LANG=)\n"
 931                "     --locale-messages=LOCALE               Set message locale (LC_MESSAGES=)\n"
 932                "     --keymap=KEYMAP                        Set keymap\n"
 933                "     --timezone=TIMEZONE                    Set timezone\n"
 934                "     --hostname=NAME                        Set hostname\n"
 935                "     --machine-ID=ID                        Set machine ID\n"
 936                "     --root-password=PASSWORD               Set root password from plaintext password\n"
 937                "     --root-password-file=FILE              Set root password from file\n"
 938                "     --root-password-hashed=HASHED_PASSWORD Set root password from hashed password\n"
 939                "     --root-shell=SHELL                     Set root shell\n"
 940                "     --prompt-locale                        Prompt the user for locale settings\n"
 941                "     --prompt-keymap                        Prompt the user for keymap settings\n"
 942                "     --prompt-timezone                      Prompt the user for timezone\n"
 943                "     --prompt-hostname                      Prompt the user for hostname\n"
 944                "     --prompt-root-password                 Prompt the user for root password\n"
 945                "     --prompt-root-shell                    Prompt the user for root shell\n"
 946                "     --prompt                               Prompt for all of the above\n"
 947                "     --copy-locale                          Copy locale from host\n"
 948                "     --copy-keymap                          Copy keymap from host\n"
 949                "     --copy-timezone                        Copy timezone from host\n"
 950                "     --copy-root-password                   Copy root password from host\n"
 951                "     --copy-root-shell                      Copy root shell from host\n"
 952                "     --copy                                 Copy locale, keymap, timezone, root password\n"
 953                "     --setup-machine-id                     Generate a new random machine ID\n"
 954                "     --force                                Overwrite existing files\n"
 955                "     --delete-root-password                 Delete root password\n"
 956                "     --welcome=no                           Disable the welcome text\n"
 957                "\nSee the %s for details.\n"
 958                , program_invocation_short_name
 959                , link
 960         );
 961
 962         return 0;
 963 }
 964
 965 static int parse_argv(int argc, char *argv[]) {
 966
 967         enum {
 968                 ARG_VERSION = 0x100,
 969                 ARG_ROOT,
 970                 ARG_IMAGE,
 971                 ARG_LOCALE,
 972                 ARG_LOCALE_MESSAGES,
 973                 ARG_KEYMAP,
 974                 ARG_TIMEZONE,
 975                 ARG_HOSTNAME,
 976                 ARG_MACHINE_ID,
 977                 ARG_ROOT_PASSWORD,
 978                 ARG_ROOT_PASSWORD_FILE,
 979                 ARG_ROOT_PASSWORD_HASHED,
 980                 ARG_ROOT_SHELL,
 981                 ARG_KERNEL_COMMAND_LINE,
 982                 ARG_PROMPT,
 983                 ARG_PROMPT_LOCALE,
 984                 ARG_PROMPT_KEYMAP,
 985                 ARG_PROMPT_TIMEZONE,
 986                 ARG_PROMPT_HOSTNAME,
 987                 ARG_PROMPT_ROOT_PASSWORD,
 988                 ARG_PROMPT_ROOT_SHELL,
 989                 ARG_COPY,
 990                 ARG_COPY_LOCALE,
 991                 ARG_COPY_KEYMAP,
 992                 ARG_COPY_TIMEZONE,
 993                 ARG_COPY_ROOT_PASSWORD,
 994                 ARG_COPY_ROOT_SHELL,
 995                 ARG_SETUP_MACHINE_ID,
 996                 ARG_FORCE,
 997                 ARG_DELETE_ROOT_PASSWORD,
 998                 ARG_WELCOME,
 999         };
1000
1001         static const struct option options[] = {
1002                 { "help",                    no_argument,       NULL, 'h'                         },
1003                 { "version",                 no_argument,       NULL, ARG_VERSION                 },
1004                 { "root",                    required_argument, NULL, ARG_ROOT                    },
1005                 { "image",                   required_argument, NULL, ARG_IMAGE                   },
1006                 { "locale",                  required_argument, NULL, ARG_LOCALE                  },
1007                 { "locale-messages",         required_argument, NULL, ARG_LOCALE_MESSAGES         },
1008                 { "keymap",                  required_argument, NULL, ARG_KEYMAP                  },
1009                 { "timezone",                required_argument, NULL, ARG_TIMEZONE                },
1010                 { "hostname",                required_argument, NULL, ARG_HOSTNAME                },
1011                 { "machine-id",              required_argument, NULL, ARG_MACHINE_ID              },
1012                 { "root-password",           required_argument, NULL, ARG_ROOT_PASSWORD           },
1013                 { "root-password-file",      required_argument, NULL, ARG_ROOT_PASSWORD_FILE      },
1014                 { "root-password-hashed",    required_argument, NULL, ARG_ROOT_PASSWORD_HASHED    },
1015                 { "root-shell",              required_argument, NULL, ARG_ROOT_SHELL              },
1016                 { "kernel-command-line",     required_argument, NULL, ARG_KERNEL_COMMAND_LINE     },
1017                 { "prompt",                  no_argument,       NULL, ARG_PROMPT                  },
1018                 { "prompt-locale",           no_argument,       NULL, ARG_PROMPT_LOCALE           },
1019                 { "prompt-keymap",           no_argument,       NULL, ARG_PROMPT_KEYMAP           },
1020                 { "prompt-timezone",         no_argument,       NULL, ARG_PROMPT_TIMEZONE         },
1021                 { "prompt-hostname",         no_argument,       NULL, ARG_PROMPT_HOSTNAME         },
1022                 { "prompt-root-password",    no_argument,       NULL, ARG_PROMPT_ROOT_PASSWORD    },
1023                 { "prompt-root-shell",       no_argument,       NULL, ARG_PROMPT_ROOT_SHELL       },
1024                 { "copy",                    no_argument,       NULL, ARG_COPY                    },
1025                 { "copy-locale",             no_argument,       NULL, ARG_COPY_LOCALE             },
1026                 { "copy-keymap",             no_argument,       NULL, ARG_COPY_KEYMAP             },
1027                 { "copy-timezone",           no_argument,       NULL, ARG_COPY_TIMEZONE           },
1028                 { "copy-root-password",      no_argument,       NULL, ARG_COPY_ROOT_PASSWORD      },
1029                 { "copy-root-shell",         no_argument,       NULL, ARG_COPY_ROOT_SHELL         },
1030                 { "setup-machine-id",        no_argument,       NULL, ARG_SETUP_MACHINE_ID        },
1031                 { "force",                   no_argument,       NULL, ARG_FORCE                   },
1032                 { "delete-root-password",    no_argument,       NULL, ARG_DELETE_ROOT_PASSWORD    },
1033                 { "welcome",                 required_argument, NULL, ARG_WELCOME                 },
1034                 {}
1035         };
1036
1037         int r, c;
1038
1039         assert(argc >= 0);
1040         assert(argv);
1041
1042         while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
1043
1044                 switch (c) {
1045
1046                 case 'h':
1047                         return help();
1048
1049                 case ARG_VERSION:
1050                         return version();
1051
1052                 case ARG_ROOT:
1053                         r = parse_path_argument_and_warn(optarg, true, &arg_root);
1054                         if (r < 0)
1055                                 return r;
1056                         break;
1057
1058                 case ARG_IMAGE:
1059                         r = parse_path_argument_and_warn(optarg, false, &arg_image);
1060                         if (r < 0)
1061                                 return r;
1062                         break;
1063
1064                 case ARG_LOCALE:
1065                         r = free_and_strdup(&arg_locale, optarg);
1066                         if (r < 0)
1067                                 return log_oom();
1068
1069                         break;
1070
1071                 case ARG_LOCALE_MESSAGES:
1072                         r = free_and_strdup(&arg_locale_messages, optarg);
1073                         if (r < 0)
1074                                 return log_oom();
1075
1076                         break;
1077
1078                 case ARG_KEYMAP:
1079                         if (!keymap_is_valid(optarg))
1080                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1081                                                        "Keymap %s is not valid.", optarg);
1082
1083                         r = free_and_strdup(&arg_keymap, optarg);
1084                         if (r < 0)
1085                                 return log_oom();
1086
1087                         break;
1088
1089                 case ARG_TIMEZONE:
1090                         if (!timezone_is_valid(optarg, LOG_ERR))
1091                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1092                                                        "Timezone %s is not valid.", optarg);
1093
1094                         r = free_and_strdup(&arg_timezone, optarg);
1095                         if (r < 0)
1096                                 return log_oom();
1097
1098                         break;
1099
1100                 case ARG_ROOT_PASSWORD:
1101                         r = free_and_strdup(&arg_root_password, optarg);
1102                         if (r < 0)
1103                                 return log_oom();
1104
1105                         arg_root_password_is_hashed = false;
1106                         break;
1107
1108                 case ARG_ROOT_PASSWORD_FILE:
1109                         arg_root_password = mfree(arg_root_password);
1110
1111                         r = read_one_line_file(optarg, &arg_root_password);
1112                         if (r < 0)
1113                                 return log_error_errno(r, "Failed to read %s: %m", optarg);
1114
1115                         arg_root_password_is_hashed = false;
1116                         break;
1117
1118                 case ARG_ROOT_PASSWORD_HASHED:
1119                         r = free_and_strdup(&arg_root_password, optarg);
1120                         if (r < 0)
1121                                 return log_oom();
1122
1123                         arg_root_password_is_hashed = true;
1124                         break;
1125
1126                 case ARG_ROOT_SHELL:
1127                         r = find_shell(optarg, arg_root);
1128                         if (r < 0)
1129                                 return r;
1130
1131                         r = free_and_strdup(&arg_root_shell, optarg);
1132                         if (r < 0)
1133                                 return log_oom();
1134
1135                         break;
1136
1137                 case ARG_HOSTNAME:
1138                         if (!hostname_is_valid(optarg, true))
1139                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1140                                                        "Host name %s is not valid.", optarg);
1141
1142                         hostname_cleanup(optarg);
1143                         r = free_and_strdup(&arg_hostname, optarg);
1144                         if (r < 0)
1145                                 return log_oom();
1146
1147                         break;
1148
1149                 case ARG_MACHINE_ID:
1150                         if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
1151                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1152                                                        "Failed to parse machine id %s.", optarg);
1153
1154                         break;
1155
1156                 case ARG_KERNEL_COMMAND_LINE:
1157                         r = free_and_strdup(&arg_kernel_cmdline, optarg);
1158                         if (r < 0)
1159                                 return log_oom();
1160
1161                         break;
1162
1163                 case ARG_PROMPT:
1164                         arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname =
1165                                 arg_prompt_root_password = arg_prompt_root_shell = true;
1166                         break;
1167
1168                 case ARG_PROMPT_LOCALE:
1169                         arg_prompt_locale = true;
1170                         break;
1171
1172                 case ARG_PROMPT_KEYMAP:
1173                         arg_prompt_keymap = true;
1174                         break;
1175
1176                 case ARG_PROMPT_TIMEZONE:
1177                         arg_prompt_timezone = true;
1178                         break;
1179
1180                 case ARG_PROMPT_HOSTNAME:
1181                         arg_prompt_hostname = true;
1182                         break;
1183
1184                 case ARG_PROMPT_ROOT_PASSWORD:
1185                         arg_prompt_root_password = true;
1186                         break;
1187
1188                 case ARG_PROMPT_ROOT_SHELL:
1189                         arg_prompt_root_shell = true;
1190                         break;
1191
1192                 case ARG_COPY:
1193                         arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password =
1194                                 arg_copy_root_shell = true;
1195                         break;
1196
1197                 case ARG_COPY_LOCALE:
1198                         arg_copy_locale = true;
1199                         break;
1200
1201                 case ARG_COPY_KEYMAP:
1202                         arg_copy_keymap = true;
1203                         break;
1204
1205                 case ARG_COPY_TIMEZONE:
1206                         arg_copy_timezone = true;
1207                         break;
1208
1209                 case ARG_COPY_ROOT_PASSWORD:
1210                         arg_copy_root_password = true;
1211                         break;
1212
1213                 case ARG_COPY_ROOT_SHELL:
1214                         arg_copy_root_shell = true;
1215                         break;
1216
1217                 case ARG_SETUP_MACHINE_ID:
1218                         r = sd_id128_randomize(&arg_machine_id);
1219                         if (r < 0)
1220                                 return log_error_errno(r, "Failed to generate randomized machine ID: %m");
1221
1222                         break;
1223
1224                 case ARG_FORCE:
1225                         arg_force = true;
1226                         break;
1227
1228                 case ARG_DELETE_ROOT_PASSWORD:
1229                         arg_delete_root_password = true;
1230                         break;
1231
1232                 case ARG_WELCOME:
1233                         r = parse_boolean(optarg);
1234                         if (r < 0)
1235                                 return log_error_errno(r, "Failed to parse --welcome= argument: %s", optarg);
1236
1237                         arg_welcome = r;
1238                         break;
1239
1240                 case '?':
1241                         return -EINVAL;
1242
1243                 default:
1244                         assert_not_reached("Unhandled option");
1245                 }
1246
1247         /* We check if the specified locale strings are valid down here, so that we can take --root= into
1248          * account when looking for the locale files. */
1249
1250         if (arg_locale && !locale_is_ok(arg_locale))
1251                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale);
1252         if (arg_locale_messages && !locale_is_ok(arg_locale_messages))
1253                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages);
1254
1255         if (arg_delete_root_password && (arg_copy_root_password || arg_root_password || arg_prompt_root_password))
1256                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
1257                                        "--delete-root-password cannot be combined with other root password options");
1258
1259         if (arg_image && arg_root)
1260                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
1261
1262         return 1;
1263 }
1264
1265 static int run(int argc, char *argv[]) {
1266         _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
1267         _cleanup_(decrypted_image_unrefp) DecryptedImage *decrypted_image = NULL;
1268         _cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL;
1269         int r;
1270
1271         r = parse_argv(argc, argv);
1272         if (r <= 0)
1273                 return r;
1274
1275         log_setup_service();
1276
1277         umask(0022);
1278
1279         if (!arg_root && !arg_image) {
1280                 bool enabled;
1281
1282                 /* If we are called without --root=/--image= let's honour the systemd.firstboot kernel
1283                  * command line option, because we are called to provision the host with basic settings (as
1284                  * opposed to some other file system tree/image) */
1285
1286                 r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
1287                 if (r < 0)
1288                         return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
1289                 if (r > 0 && !enabled)
1290                         return 0; /* disabled */
1291         }
1292
1293         if (arg_image) {
1294                 assert(!arg_root);
1295
1296                 r = mount_image_privately_interactively(
1297                                 arg_image,
1298                                 DISSECT_IMAGE_REQUIRE_ROOT|DISSECT_IMAGE_VALIDATE_OS|DISSECT_IMAGE_RELAX_VAR_CHECK|DISSECT_IMAGE_FSCK,
1299                                 &unlink_dir,
1300                                 &loop_device,
1301                                 &decrypted_image);
1302                 if (r < 0)
1303                         return r;
1304
1305                 arg_root = strdup(unlink_dir);
1306                 if (!arg_root)
1307                         return log_oom();
1308         }
1309
1310         r = process_locale();
1311         if (r < 0)
1312                 return r;
1313
1314         r = process_keymap();
1315         if (r < 0)
1316                 return r;
1317
1318         r = process_timezone();
1319         if (r < 0)
1320                 return r;
1321
1322         r = process_hostname();
1323         if (r < 0)
1324                 return r;
1325
1326         r = process_machine_id();
1327         if (r < 0)
1328                 return r;
1329
1330         r = process_root_args();
1331         if (r < 0)
1332                 return r;
1333
1334         r = process_kernel_cmdline();
1335         if (r < 0)
1336                 return r;
1337
1338         return 0;
1339 }
1340
1341 DEFINE_MAIN_FUNCTION(run);