/* SPDX-License-Identifier: LGPL-2.1-or-later */ #include #include #include #include #include "sd-id128.h" #include "alloc-util.h" #include "ask-password-api.h" #include "build.h" #include "chase-symlinks.h" #include "copy.h" #include "creds-util.h" #include "dissect-image.h" #include "env-file.h" #include "fd-util.h" #include "fileio.h" #include "fs-util.h" #include "glyph-util.h" #include "hostname-util.h" #include "kbd-util.h" #include "libcrypt-util.h" #include "locale-util.h" #include "main-func.h" #include "memory-util.h" #include "mkdir.h" #include "mount-util.h" #include "os-util.h" #include "parse-argument.h" #include "parse-util.h" #include "path-util.h" #include "pretty-print.h" #include "proc-cmdline.h" #include "pwquality-util.h" #include "random-util.h" #include "smack-util.h" #include "string-util.h" #include "strv.h" #include "terminal-util.h" #include "time-util.h" #include "tmpfile-util-label.h" #include "tmpfile-util.h" #include "umask-util.h" #include "user-util.h" static char *arg_root = NULL; static char *arg_image = NULL; static char *arg_locale = NULL; /* $LANG */ static char *arg_locale_messages = NULL; /* $LC_MESSAGES */ static char *arg_keymap = NULL; static char *arg_timezone = NULL; static char *arg_hostname = NULL; static sd_id128_t arg_machine_id = {}; static char *arg_root_password = NULL; static char *arg_root_shell = NULL; static char *arg_kernel_cmdline = NULL; static bool arg_prompt_locale = false; static bool arg_prompt_keymap = false; static bool arg_prompt_timezone = false; static bool arg_prompt_hostname = false; static bool arg_prompt_root_password = false; static bool arg_prompt_root_shell = false; static bool arg_copy_locale = false; static bool arg_copy_keymap = false; static bool arg_copy_timezone = false; static bool arg_copy_root_password = false; static bool arg_copy_root_shell = false; static bool arg_force = false; static bool arg_delete_root_password = false; static bool arg_root_password_is_hashed = false; static bool arg_welcome = true; STATIC_DESTRUCTOR_REGISTER(arg_root, freep); STATIC_DESTRUCTOR_REGISTER(arg_image, freep); STATIC_DESTRUCTOR_REGISTER(arg_locale, freep); STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep); STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep); STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep); STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep); STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep); static bool press_any_key(void) { char k = 0; bool need_nl = true; printf("-- Press any key to proceed --"); fflush(stdout); (void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl); if (need_nl) putchar('\n'); return k != 'q'; } static void print_welcome(void) { _cleanup_free_ char *pretty_name = NULL, *os_name = NULL, *ansi_color = NULL; static bool done = false; const char *pn, *ac; int r; if (!arg_welcome) return; if (done) return; r = parse_os_release( arg_root, "PRETTY_NAME", &pretty_name, "NAME", &os_name, "ANSI_COLOR", &ansi_color); if (r < 0) log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r, "Failed to read os-release file, ignoring: %m"); pn = os_release_pretty_name(pretty_name, os_name); ac = isempty(ansi_color) ? "0" : ansi_color; if (colors_enabled()) printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ac, pn); else printf("\nWelcome to your new installation of %s!\n", pn); printf("\nPlease configure your system!\n\n"); press_any_key(); done = true; } static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) { unsigned break_lines, break_modulo; size_t n, per_column, i, j; assert(n_columns > 0); n = strv_length(x); per_column = DIV_ROUND_UP(n, n_columns); break_lines = lines(); if (break_lines > 2) break_lines--; /* The first page gets two extra lines, since we want to show * a title */ break_modulo = break_lines; if (break_modulo > 3) break_modulo -= 3; for (i = 0; i < per_column; i++) { for (j = 0; j < n_columns; j ++) { _cleanup_free_ char *e = NULL; if (j * per_column + i >= n) break; e = ellipsize(x[j * per_column + i], width, percentage); if (!e) return log_oom(); printf("%4zu) %-*s", j * per_column + i + 1, (int) width, e); } putchar('\n'); /* on the first screen we reserve 2 extra lines for the title */ if (i % break_lines == break_modulo) { if (!press_any_key()) return 0; } } return 0; } static int prompt_loop(const char *text, char **l, unsigned percentage, bool (*is_valid)(const char *name), char **ret) { int r; assert(text); assert(is_valid); assert(ret); for (;;) { _cleanup_free_ char *p = NULL; unsigned u; r = ask_string(&p, "%s %s (empty to skip, \"list\" to list options): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text); if (r < 0) return log_error_errno(r, "Failed to query user: %m"); if (isempty(p)) { log_warning("No data entered, skipping."); return 0; } if (streq(p, "list")) { r = show_menu(l, 3, 22, percentage); if (r < 0) return r; putchar('\n'); continue; }; r = safe_atou(p, &u); if (r >= 0) { if (u <= 0 || u > strv_length(l)) { log_error("Specified entry number out of range."); continue; } log_info("Selected '%s'.", l[u-1]); return free_and_strdup_warn(ret, l[u-1]); } if (!is_valid(p)) { log_error("Entered data invalid."); continue; } return free_and_replace(*ret, p); } } static bool locale_is_ok(const char *name) { if (arg_root) return locale_is_valid(name); return locale_is_installed(name) > 0; } static int prompt_locale(void) { _cleanup_strv_free_ char **locales = NULL; bool acquired_from_creds = false; int r; if (arg_locale || arg_locale_messages) return 0; r = read_credential("firstboot.locale", (void**) &arg_locale, NULL); if (r < 0) log_debug_errno(r, "Failed to read credential firstboot.locale, ignoring: %m"); else acquired_from_creds = true; r = read_credential("firstboot.locale-messages", (void**) &arg_locale_messages, NULL); if (r < 0) log_debug_errno(r, "Failed to read credential firstboot.locale-message, ignoring: %m"); else acquired_from_creds = true; if (acquired_from_creds) { log_debug("Acquired locale from credentials."); return 0; } if (!arg_prompt_locale) { log_debug("Prompting for locale was not requested."); return 0; } r = get_locales(&locales); if (r < 0) return log_error_errno(r, "Cannot query locales list: %m"); if (strv_isempty(locales)) log_debug("No locales found, skipping locale selection."); else if (strv_length(locales) == 1) { if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE)) log_debug("Only installed locale is default locale anyway, not setting locale explicitly."); else { log_debug("Only a single locale available (%s), selecting it as default.", locales[0]); arg_locale = strdup(locales[0]); if (!arg_locale) return log_oom(); /* Not setting arg_locale_message here, since it defaults to LANG anyway */ } } else { print_welcome(); r = prompt_loop("Please enter system locale name or number", locales, 60, locale_is_ok, &arg_locale); if (r < 0) return r; if (isempty(arg_locale)) return 0; r = prompt_loop("Please enter system message locale name or number", locales, 60, locale_is_ok, &arg_locale_messages); if (r < 0) return r; /* Suppress the messages setting if it's the same as the main locale anyway */ if (streq_ptr(arg_locale, arg_locale_messages)) arg_locale_messages = mfree(arg_locale_messages); } return 0; } static int process_locale(void) { const char *etc_localeconf; char* locales[3]; unsigned i = 0; int r; etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf"); if (laccess(etc_localeconf, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming locale information has been configured.", etc_localeconf); return 0; } if (arg_copy_locale && arg_root) { (void) mkdir_parents(etc_localeconf, 0755); r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK); if (r != -ENOENT) { if (r < 0) return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf); log_info("%s copied.", etc_localeconf); return 0; } } r = prompt_locale(); if (r < 0) return r; if (!isempty(arg_locale)) locales[i++] = strjoina("LANG=", arg_locale); if (!isempty(arg_locale_messages) && !streq_ptr(arg_locale_messages, arg_locale)) locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages); if (i == 0) return 0; locales[i] = NULL; (void) mkdir_parents(etc_localeconf, 0755); r = write_env_file(etc_localeconf, locales); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_localeconf); log_info("%s written.", etc_localeconf); return 0; } static int prompt_keymap(void) { _cleanup_strv_free_ char **kmaps = NULL; int r; if (arg_keymap) return 0; r = read_credential("firstboot.keymap", (void**) &arg_keymap, NULL); if (r < 0) log_debug_errno(r, "Failed to read credential firstboot.keymap, ignoring: %m"); else { log_debug("Acquired keymap from credential."); return 0; } if (!arg_prompt_keymap) { log_debug("Prompting for keymap was not requested."); return 0; } r = get_keymaps(&kmaps); if (r == -ENOENT) /* no keymaps installed */ return log_debug_errno(r, "No keymaps are installed."); if (r < 0) return log_error_errno(r, "Failed to read keymaps: %m"); print_welcome(); return prompt_loop("Please enter system keymap name or number", kmaps, 60, keymap_is_valid, &arg_keymap); } static int process_keymap(void) { const char *etc_vconsoleconf; char **keymap; int r; etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf"); if (laccess(etc_vconsoleconf, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming console has been configured.", etc_vconsoleconf); return 0; } if (arg_copy_keymap && arg_root) { (void) mkdir_parents(etc_vconsoleconf, 0755); r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK); if (r != -ENOENT) { if (r < 0) return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf); log_info("%s copied.", etc_vconsoleconf); return 0; } } r = prompt_keymap(); if (r == -ENOENT) return 0; /* don't fail if no keymaps are installed */ if (r < 0) return r; if (isempty(arg_keymap)) return 0; keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap)); r = mkdir_parents(etc_vconsoleconf, 0755); if (r < 0) return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf); r = write_env_file(etc_vconsoleconf, keymap); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf); log_info("%s written.", etc_vconsoleconf); return 0; } static bool timezone_is_valid_log_error(const char *name) { return timezone_is_valid(name, LOG_ERR); } static int prompt_timezone(void) { _cleanup_strv_free_ char **zones = NULL; int r; if (arg_timezone) return 0; r = read_credential("firstboot.timezone", (void**) &arg_timezone, NULL); if (r < 0) log_debug_errno(r, "Failed to read credential firstboot.timezone, ignoring: %m"); else { log_debug("Acquired timezone from credential."); return 0; } if (!arg_prompt_timezone) { log_debug("Prompting for timezone was not requested."); return 0; } r = get_timezones(&zones); if (r < 0) return log_error_errno(r, "Cannot query timezone list: %m"); print_welcome(); r = prompt_loop("Please enter timezone name or number", zones, 30, timezone_is_valid_log_error, &arg_timezone); if (r < 0) return r; return 0; } static int process_timezone(void) { const char *etc_localtime, *e; int r; etc_localtime = prefix_roota(arg_root, "/etc/localtime"); if (laccess(etc_localtime, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming timezone has been configured.", etc_localtime); return 0; } if (arg_copy_timezone && arg_root) { _cleanup_free_ char *p = NULL; r = readlink_malloc("/etc/localtime", &p); if (r != -ENOENT) { if (r < 0) return log_error_errno(r, "Failed to read host timezone: %m"); (void) mkdir_parents(etc_localtime, 0755); r = symlink_atomic(p, etc_localtime); if (r < 0) return log_error_errno(r, "Failed to create %s symlink: %m", etc_localtime); log_info("%s copied.", etc_localtime); return 0; } } r = prompt_timezone(); if (r < 0) return r; if (isempty(arg_timezone)) return 0; e = strjoina("../usr/share/zoneinfo/", arg_timezone); (void) mkdir_parents(etc_localtime, 0755); r = symlink_atomic(e, etc_localtime); if (r < 0) return log_error_errno(r, "Failed to create %s symlink: %m", etc_localtime); log_info("%s written", etc_localtime); return 0; } static int prompt_hostname(void) { int r; if (arg_hostname) return 0; if (!arg_prompt_hostname) { log_debug("Prompting for hostname was not requested."); return 0; } print_welcome(); putchar('\n'); for (;;) { _cleanup_free_ char *h = NULL; r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET)); if (r < 0) return log_error_errno(r, "Failed to query hostname: %m"); if (isempty(h)) { log_warning("No hostname entered, skipping."); break; } if (!hostname_is_valid(h, VALID_HOSTNAME_TRAILING_DOT)) { log_error("Specified hostname invalid."); continue; } /* Get rid of the trailing dot that we allow, but don't want to see */ arg_hostname = hostname_cleanup(h); h = NULL; break; } return 0; } static int process_hostname(void) { const char *etc_hostname; int r; etc_hostname = prefix_roota(arg_root, "/etc/hostname"); if (laccess(etc_hostname, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming hostname has been configured.", etc_hostname); return 0; } r = prompt_hostname(); if (r < 0) return r; if (isempty(arg_hostname)) return 0; r = write_string_file(etc_hostname, arg_hostname, WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 | (arg_force ? WRITE_STRING_FILE_ATOMIC : 0)); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_hostname); log_info("%s written.", etc_hostname); return 0; } static int process_machine_id(void) { const char *etc_machine_id; int r; etc_machine_id = prefix_roota(arg_root, "/etc/machine-id"); if (laccess(etc_machine_id, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming machine-id has been configured.", etc_machine_id); return 0; } if (sd_id128_is_null(arg_machine_id)) { log_debug("Initialization of machine-id was not requested, skipping."); return 0; } r = write_string_file(etc_machine_id, SD_ID128_TO_STRING(arg_machine_id), WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 | (arg_force ? WRITE_STRING_FILE_ATOMIC : 0)); if (r < 0) return log_error_errno(r, "Failed to write machine id: %m"); log_info("%s written.", etc_machine_id); return 0; } static int prompt_root_password(void) { const char *msg1, *msg2; int r; if (arg_root_password) return 0; if (get_credential_user_password("root", &arg_root_password, &arg_root_password_is_hashed) >= 0) return 0; if (!arg_prompt_root_password) { log_debug("Prompting for root password was not requested."); return 0; } print_welcome(); putchar('\n'); msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip):"); msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again:"); suggest_passwords(); for (;;) { _cleanup_strv_free_erase_ char **a = NULL, **b = NULL; _cleanup_free_ char *error = NULL; r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a); if (r < 0) return log_error_errno(r, "Failed to query root password: %m"); if (strv_length(a) != 1) return log_error_errno(SYNTHETIC_ERRNO(EIO), "Received multiple passwords, where we expected one."); if (isempty(*a)) { log_warning("No password entered, skipping."); break; } r = quality_check_password(*a, "root", &error); if (r < 0) return log_error_errno(r, "Failed to check quality of password: %m"); if (r == 0) log_warning("Password is weak, accepting anyway: %s", error); r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b); if (r < 0) return log_error_errno(r, "Failed to query root password: %m"); if (strv_length(b) != 1) return log_error_errno(SYNTHETIC_ERRNO(EIO), "Received multiple passwords, where we expected one."); if (!streq(*a, *b)) { log_error("Entered passwords did not match, please try again."); continue; } arg_root_password = TAKE_PTR(*a); break; } return 0; } static int find_shell(const char *path, const char *root) { int r; assert(path); if (!valid_shell(path)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid shell", path); r = chase_symlinks(path, root, CHASE_PREFIX_ROOT, NULL, NULL); if (r < 0) { const char *p; p = prefix_roota(root, path); return log_error_errno(r, "Failed to resolve shell %s: %m", p); } return 0; } static int prompt_root_shell(void) { int r; if (arg_root_shell) return 0; r = read_credential("passwd.shell.root", (void**) &arg_root_shell, NULL); if (r < 0) log_debug_errno(r, "Failed to read credential passwd.shell.root, ignoring: %m"); else { log_debug("Acquired root shell from credential."); return 0; } if (!arg_prompt_root_shell) { log_debug("Prompting for root shell was not requested."); return 0; } print_welcome(); putchar('\n'); for (;;) { _cleanup_free_ char *s = NULL; r = ask_string(&s, "%s Please enter root shell for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET)); if (r < 0) return log_error_errno(r, "Failed to query root shell: %m"); if (isempty(s)) { log_warning("No shell entered, skipping."); break; } r = find_shell(s, arg_root); if (r < 0) continue; arg_root_shell = TAKE_PTR(s); break; } return 0; } static int write_root_passwd(const char *passwd_path, const char *password, const char *shell) { _cleanup_fclose_ FILE *original = NULL, *passwd = NULL; _cleanup_(unlink_and_freep) char *passwd_tmp = NULL; int r; assert(password); r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp); if (r < 0) return r; original = fopen(passwd_path, "re"); if (original) { struct passwd *i; r = copy_rights(fileno(original), fileno(passwd)); if (r < 0) return r; while ((r = fgetpwent_sane(original, &i)) > 0) { if (streq(i->pw_name, "root")) { i->pw_passwd = (char *) password; if (shell) i->pw_shell = (char *) shell; } r = putpwent_sane(i, passwd); if (r < 0) return r; } if (r < 0) return r; } else { struct passwd root = { .pw_name = (char *) "root", .pw_passwd = (char *) password, .pw_uid = 0, .pw_gid = 0, .pw_gecos = (char *) "Super User", .pw_dir = (char *) "/root", .pw_shell = (char *) (shell ?: default_root_shell(arg_root)), }; if (errno != ENOENT) return -errno; r = fchmod(fileno(passwd), 0644); if (r < 0) return -errno; r = putpwent_sane(&root, passwd); if (r < 0) return r; } r = fflush_sync_and_check(passwd); if (r < 0) return r; r = rename_and_apply_smack_floor_label(passwd_tmp, passwd_path); if (r < 0) return r; return 0; } static int write_root_shadow(const char *shadow_path, const char *hashed_password) { _cleanup_fclose_ FILE *original = NULL, *shadow = NULL; _cleanup_(unlink_and_freep) char *shadow_tmp = NULL; int r; assert(hashed_password); r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp); if (r < 0) return r; original = fopen(shadow_path, "re"); if (original) { struct spwd *i; r = copy_rights(fileno(original), fileno(shadow)); if (r < 0) return r; while ((r = fgetspent_sane(original, &i)) > 0) { if (streq(i->sp_namp, "root")) { i->sp_pwdp = (char *) hashed_password; i->sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY); } r = putspent_sane(i, shadow); if (r < 0) return r; } if (r < 0) return r; } else { struct spwd root = { .sp_namp = (char*) "root", .sp_pwdp = (char *) hashed_password, .sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY), .sp_min = -1, .sp_max = -1, .sp_warn = -1, .sp_inact = -1, .sp_expire = -1, .sp_flag = ULONG_MAX, /* this appears to be what everybody does ... */ }; if (errno != ENOENT) return -errno; r = fchmod(fileno(shadow), 0000); if (r < 0) return -errno; r = putspent_sane(&root, shadow); if (r < 0) return r; } r = fflush_sync_and_check(shadow); if (r < 0) return r; r = rename_and_apply_smack_floor_label(shadow_tmp, shadow_path); if (r < 0) return r; return 0; } static int process_root_account(void) { _cleanup_close_ int lock = -EBADF; _cleanup_(erase_and_freep) char *_hashed_password = NULL; const char *password, *hashed_password; const char *etc_passwd, *etc_shadow; int r; etc_passwd = prefix_roota(arg_root, "/etc/passwd"); etc_shadow = prefix_roota(arg_root, "/etc/shadow"); if (laccess(etc_passwd, F_OK) >= 0 && laccess(etc_shadow, F_OK) >= 0 && !arg_force) { log_debug("Found %s and %s, assuming root account has been initialized.", etc_passwd, etc_shadow); return 0; } /* Don't create/modify passwd and shadow if not asked */ if (!(arg_root_password || arg_prompt_root_password || arg_copy_root_password || arg_delete_root_password || arg_root_shell || arg_prompt_root_shell || arg_copy_root_shell)) { log_debug("Initialization of root account was not requested, skipping."); return 0; } lock = take_etc_passwd_lock(arg_root); if (lock < 0) return log_error_errno(lock, "Failed to take a lock on %s: %m", etc_passwd); if (arg_copy_root_shell && arg_root) { struct passwd *p; errno = 0; p = getpwnam("root"); if (!p) return log_error_errno(errno_or_else(EIO), "Failed to find passwd entry for root: %m"); r = free_and_strdup(&arg_root_shell, p->pw_shell); if (r < 0) return log_oom(); } r = prompt_root_shell(); if (r < 0) return r; if (arg_copy_root_password && arg_root) { struct spwd *p; errno = 0; p = getspnam("root"); if (!p) return log_error_errno(errno_or_else(EIO), "Failed to find shadow entry for root: %m"); r = free_and_strdup(&arg_root_password, p->sp_pwdp); if (r < 0) return log_oom(); arg_root_password_is_hashed = true; } r = prompt_root_password(); if (r < 0) return r; if (arg_root_password && arg_root_password_is_hashed) { password = PASSWORD_SEE_SHADOW; hashed_password = arg_root_password; } else if (arg_root_password) { r = hash_password(arg_root_password, &_hashed_password); if (r < 0) return log_error_errno(r, "Failed to hash password: %m"); password = PASSWORD_SEE_SHADOW; hashed_password = _hashed_password; } else if (arg_delete_root_password) password = hashed_password = PASSWORD_NONE; else password = hashed_password = PASSWORD_LOCKED_AND_INVALID; r = write_root_passwd(etc_passwd, password, arg_root_shell); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_passwd); log_info("%s written", etc_passwd); r = write_root_shadow(etc_shadow, hashed_password); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_shadow); log_info("%s written.", etc_shadow); return 0; } static int process_kernel_cmdline(void) { const char *etc_kernel_cmdline; int r; etc_kernel_cmdline = prefix_roota(arg_root, "/etc/kernel/cmdline"); if (laccess(etc_kernel_cmdline, F_OK) >= 0 && !arg_force) { log_debug("Found %s, assuming kernel has been configured.", etc_kernel_cmdline); return 0; } if (!arg_kernel_cmdline) { log_debug("Creation of /etc/kernel/cmdline was not requested, skipping."); return 0; } r = write_string_file(etc_kernel_cmdline, arg_kernel_cmdline, WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 | (arg_force ? WRITE_STRING_FILE_ATOMIC : 0)); if (r < 0) return log_error_errno(r, "Failed to write %s: %m", etc_kernel_cmdline); log_info("%s written.", etc_kernel_cmdline); return 0; } static int help(void) { _cleanup_free_ char *link = NULL; int r; r = terminal_urlify_man("systemd-firstboot", "1", &link); if (r < 0) return log_oom(); printf("%s [OPTIONS...]\n\n" "Configures basic settings of the system.\n\n" " -h --help Show this help\n" " --version Show package version\n" " --root=PATH Operate on an alternate filesystem root\n" " --image=PATH Operate on an alternate filesystem image\n" " --locale=LOCALE Set primary locale (LANG=)\n" " --locale-messages=LOCALE Set message locale (LC_MESSAGES=)\n" " --keymap=KEYMAP Set keymap\n" " --timezone=TIMEZONE Set timezone\n" " --hostname=NAME Set hostname\n" " --machine-ID=ID Set machine ID\n" " --root-password=PASSWORD Set root password from plaintext password\n" " --root-password-file=FILE Set root password from file\n" " --root-password-hashed=HASH Set root password from hashed password\n" " --root-shell=SHELL Set root shell\n" " --prompt-locale Prompt the user for locale settings\n" " --prompt-keymap Prompt the user for keymap settings\n" " --prompt-timezone Prompt the user for timezone\n" " --prompt-hostname Prompt the user for hostname\n" " --prompt-root-password Prompt the user for root password\n" " --prompt-root-shell Prompt the user for root shell\n" " --prompt Prompt for all of the above\n" " --copy-locale Copy locale from host\n" " --copy-keymap Copy keymap from host\n" " --copy-timezone Copy timezone from host\n" " --copy-root-password Copy root password from host\n" " --copy-root-shell Copy root shell from host\n" " --copy Copy locale, keymap, timezone, root password\n" " --setup-machine-id Generate a new random machine ID\n" " --force Overwrite existing files\n" " --delete-root-password Delete root password\n" " --welcome=no Disable the welcome text\n" "\nSee the %s for details.\n", program_invocation_short_name, link); return 0; } static int parse_argv(int argc, char *argv[]) { enum { ARG_VERSION = 0x100, ARG_ROOT, ARG_IMAGE, ARG_LOCALE, ARG_LOCALE_MESSAGES, ARG_KEYMAP, ARG_TIMEZONE, ARG_HOSTNAME, ARG_MACHINE_ID, ARG_ROOT_PASSWORD, ARG_ROOT_PASSWORD_FILE, ARG_ROOT_PASSWORD_HASHED, ARG_ROOT_SHELL, ARG_KERNEL_COMMAND_LINE, ARG_PROMPT, ARG_PROMPT_LOCALE, ARG_PROMPT_KEYMAP, ARG_PROMPT_TIMEZONE, ARG_PROMPT_HOSTNAME, ARG_PROMPT_ROOT_PASSWORD, ARG_PROMPT_ROOT_SHELL, ARG_COPY, ARG_COPY_LOCALE, ARG_COPY_KEYMAP, ARG_COPY_TIMEZONE, ARG_COPY_ROOT_PASSWORD, ARG_COPY_ROOT_SHELL, ARG_SETUP_MACHINE_ID, ARG_FORCE, ARG_DELETE_ROOT_PASSWORD, ARG_WELCOME, }; static const struct option options[] = { { "help", no_argument, NULL, 'h' }, { "version", no_argument, NULL, ARG_VERSION }, { "root", required_argument, NULL, ARG_ROOT }, { "image", required_argument, NULL, ARG_IMAGE }, { "locale", required_argument, NULL, ARG_LOCALE }, { "locale-messages", required_argument, NULL, ARG_LOCALE_MESSAGES }, { "keymap", required_argument, NULL, ARG_KEYMAP }, { "timezone", required_argument, NULL, ARG_TIMEZONE }, { "hostname", required_argument, NULL, ARG_HOSTNAME }, { "machine-id", required_argument, NULL, ARG_MACHINE_ID }, { "root-password", required_argument, NULL, ARG_ROOT_PASSWORD }, { "root-password-file", required_argument, NULL, ARG_ROOT_PASSWORD_FILE }, { "root-password-hashed", required_argument, NULL, ARG_ROOT_PASSWORD_HASHED }, { "root-shell", required_argument, NULL, ARG_ROOT_SHELL }, { "kernel-command-line", required_argument, NULL, ARG_KERNEL_COMMAND_LINE }, { "prompt", no_argument, NULL, ARG_PROMPT }, { "prompt-locale", no_argument, NULL, ARG_PROMPT_LOCALE }, { "prompt-keymap", no_argument, NULL, ARG_PROMPT_KEYMAP }, { "prompt-timezone", no_argument, NULL, ARG_PROMPT_TIMEZONE }, { "prompt-hostname", no_argument, NULL, ARG_PROMPT_HOSTNAME }, { "prompt-root-password", no_argument, NULL, ARG_PROMPT_ROOT_PASSWORD }, { "prompt-root-shell", no_argument, NULL, ARG_PROMPT_ROOT_SHELL }, { "copy", no_argument, NULL, ARG_COPY }, { "copy-locale", no_argument, NULL, ARG_COPY_LOCALE }, { "copy-keymap", no_argument, NULL, ARG_COPY_KEYMAP }, { "copy-timezone", no_argument, NULL, ARG_COPY_TIMEZONE }, { "copy-root-password", no_argument, NULL, ARG_COPY_ROOT_PASSWORD }, { "copy-root-shell", no_argument, NULL, ARG_COPY_ROOT_SHELL }, { "setup-machine-id", no_argument, NULL, ARG_SETUP_MACHINE_ID }, { "force", no_argument, NULL, ARG_FORCE }, { "delete-root-password", no_argument, NULL, ARG_DELETE_ROOT_PASSWORD }, { "welcome", required_argument, NULL, ARG_WELCOME }, {} }; int r, c; assert(argc >= 0); assert(argv); while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0) switch (c) { case 'h': return help(); case ARG_VERSION: return version(); case ARG_ROOT: r = parse_path_argument(optarg, true, &arg_root); if (r < 0) return r; break; case ARG_IMAGE: r = parse_path_argument(optarg, false, &arg_image); if (r < 0) return r; break; case ARG_LOCALE: r = free_and_strdup(&arg_locale, optarg); if (r < 0) return log_oom(); break; case ARG_LOCALE_MESSAGES: r = free_and_strdup(&arg_locale_messages, optarg); if (r < 0) return log_oom(); break; case ARG_KEYMAP: if (!keymap_is_valid(optarg)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Keymap %s is not valid.", optarg); r = free_and_strdup(&arg_keymap, optarg); if (r < 0) return log_oom(); break; case ARG_TIMEZONE: if (!timezone_is_valid(optarg, LOG_ERR)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Timezone %s is not valid.", optarg); r = free_and_strdup(&arg_timezone, optarg); if (r < 0) return log_oom(); break; case ARG_ROOT_PASSWORD: r = free_and_strdup(&arg_root_password, optarg); if (r < 0) return log_oom(); arg_root_password_is_hashed = false; break; case ARG_ROOT_PASSWORD_FILE: arg_root_password = mfree(arg_root_password); r = read_one_line_file(optarg, &arg_root_password); if (r < 0) return log_error_errno(r, "Failed to read %s: %m", optarg); arg_root_password_is_hashed = false; break; case ARG_ROOT_PASSWORD_HASHED: r = free_and_strdup(&arg_root_password, optarg); if (r < 0) return log_oom(); arg_root_password_is_hashed = true; break; case ARG_ROOT_SHELL: r = find_shell(optarg, arg_root); if (r < 0) return r; r = free_and_strdup(&arg_root_shell, optarg); if (r < 0) return log_oom(); break; case ARG_HOSTNAME: if (!hostname_is_valid(optarg, VALID_HOSTNAME_TRAILING_DOT)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Host name %s is not valid.", optarg); r = free_and_strdup(&arg_hostname, optarg); if (r < 0) return log_oom(); hostname_cleanup(arg_hostname); break; case ARG_MACHINE_ID: r = sd_id128_from_string(optarg, &arg_machine_id); if (r < 0) return log_error_errno(r, "Failed to parse machine id %s.", optarg); break; case ARG_KERNEL_COMMAND_LINE: r = free_and_strdup(&arg_kernel_cmdline, optarg); if (r < 0) return log_oom(); break; case ARG_PROMPT: arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = arg_prompt_root_shell = true; break; case ARG_PROMPT_LOCALE: arg_prompt_locale = true; break; case ARG_PROMPT_KEYMAP: arg_prompt_keymap = true; break; case ARG_PROMPT_TIMEZONE: arg_prompt_timezone = true; break; case ARG_PROMPT_HOSTNAME: arg_prompt_hostname = true; break; case ARG_PROMPT_ROOT_PASSWORD: arg_prompt_root_password = true; break; case ARG_PROMPT_ROOT_SHELL: arg_prompt_root_shell = true; break; case ARG_COPY: arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password = arg_copy_root_shell = true; break; case ARG_COPY_LOCALE: arg_copy_locale = true; break; case ARG_COPY_KEYMAP: arg_copy_keymap = true; break; case ARG_COPY_TIMEZONE: arg_copy_timezone = true; break; case ARG_COPY_ROOT_PASSWORD: arg_copy_root_password = true; break; case ARG_COPY_ROOT_SHELL: arg_copy_root_shell = true; break; case ARG_SETUP_MACHINE_ID: r = sd_id128_randomize(&arg_machine_id); if (r < 0) return log_error_errno(r, "Failed to generate randomized machine ID: %m"); break; case ARG_FORCE: arg_force = true; break; case ARG_DELETE_ROOT_PASSWORD: arg_delete_root_password = true; break; case ARG_WELCOME: r = parse_boolean(optarg); if (r < 0) return log_error_errno(r, "Failed to parse --welcome= argument: %s", optarg); arg_welcome = r; break; case '?': return -EINVAL; default: assert_not_reached(); } /* We check if the specified locale strings are valid down here, so that we can take --root= into * account when looking for the locale files. */ if (arg_locale && !locale_is_ok(arg_locale)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale); if (arg_locale_messages && !locale_is_ok(arg_locale_messages)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages); if (arg_delete_root_password && (arg_copy_root_password || arg_root_password || arg_prompt_root_password)) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "--delete-root-password cannot be combined with other root password options"); if (arg_image && arg_root) return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported."); return 1; } static int run(int argc, char *argv[]) { _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL; _cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL; int r; r = parse_argv(argc, argv); if (r <= 0) return r; log_setup(); umask(0022); if (!arg_root && !arg_image) { bool enabled; /* If we are called without --root=/--image= let's honour the systemd.firstboot kernel * command line option, because we are called to provision the host with basic settings (as * opposed to some other file system tree/image) */ r = proc_cmdline_get_bool("systemd.firstboot", &enabled); if (r < 0) return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m"); if (r > 0 && !enabled) { log_debug("Found systemd.firstboot=no kernel command line argument, terminating."); return 0; /* disabled */ } } if (arg_image) { assert(!arg_root); r = mount_image_privately_interactively( arg_image, DISSECT_IMAGE_GENERIC_ROOT | DISSECT_IMAGE_REQUIRE_ROOT | DISSECT_IMAGE_VALIDATE_OS | DISSECT_IMAGE_RELAX_VAR_CHECK | DISSECT_IMAGE_FSCK | DISSECT_IMAGE_GROWFS, &unlink_dir, &loop_device); if (r < 0) return r; arg_root = strdup(unlink_dir); if (!arg_root) return log_oom(); } r = process_locale(); if (r < 0) return r; r = process_keymap(); if (r < 0) return r; r = process_timezone(); if (r < 0) return r; r = process_hostname(); if (r < 0) return r; r = process_machine_id(); if (r < 0) return r; r = process_root_account(); if (r < 0) return r; r = process_kernel_cmdline(); if (r < 0) return r; return 0; } DEFINE_MAIN_FUNCTION(run);