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-rw-r--r--src/firstboot/firstboot.c1439
1 files changed, 1439 insertions, 0 deletions
diff --git a/src/firstboot/firstboot.c b/src/firstboot/firstboot.c
new file mode 100644
index 0000000..dee2742
--- /dev/null
+++ b/src/firstboot/firstboot.c
@@ -0,0 +1,1439 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <fcntl.h>
+#include <getopt.h>
+#include <linux/loop.h>
+#include <unistd.h>
+
+#include "sd-id128.h"
+
+#include "alloc-util.h"
+#include "ask-password-api.h"
+#include "chase-symlinks.h"
+#include "copy.h"
+#include "creds-util.h"
+#include "dissect-image.h"
+#include "env-file.h"
+#include "errno-util.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, *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,
+ "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 = isempty(pretty_name) ? "Linux" : pretty_name;
+ ac = isempty(ansi_color) ? "0" : ansi_color;
+
+ (void) reset_terminal_fd(STDIN_FILENO, /* switch_to_text= */ false);
+
+ 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) {
+ if (ERRNO_IS_NOT_SUPPORTED(r))
+ log_warning("Password quality check is not supported, proceeding anyway.");
+ else
+ return log_error_errno(r, "Failed to check password quality: %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 = -1;
+ _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;
+ }
+
+ (void) mkdir_parents(etc_passwd, 0755);
+
+ 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);
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-25 01:00:17 +0000