diff options
Diffstat (limited to 'src/firstboot')
| -rw-r--r-- | src/firstboot/firstboot.c | 1763 | ||||
| -rw-r--r-- | src/firstboot/meson.build | 11 |
2 files changed, 1774 insertions, 0 deletions
diff --git a/src/firstboot/firstboot.c b/src/firstboot/firstboot.c new file mode 100644 index 0000000..d402927 --- /dev/null +++ b/src/firstboot/firstboot.c @@ -0,0 +1,1763 @@ +/* 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 "build.h" +#include "bus-error.h" +#include "bus-locator.h" +#include "bus-unit-util.h" +#include "bus-util.h" +#include "bus-wait-for-jobs.h" +#include "chase.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 "lock-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 "password-quality-util.h" +#include "path-util.h" +#include "pretty-print.h" +#include "proc-cmdline.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 bool arg_reset = false; +static ImagePolicy *arg_image_policy = NULL; + +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_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_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(int rfd) { + _cleanup_free_ char *pretty_name = NULL, *os_name = NULL, *ansi_color = NULL; + static bool done = false; + const char *pn, *ac; + int r; + + assert(rfd >= 0); + + if (!arg_welcome) + return; + + if (done) + return; + + r = parse_os_release_at(rfd, + "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; + + (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 int should_configure(int dir_fd, const char *filename) { + _cleanup_fclose_ FILE *passwd = NULL, *shadow = NULL; + int r; + + assert(dir_fd >= 0); + assert(filename); + + if (streq(filename, "passwd") && !arg_force) + /* We may need to do additional checks, so open the file. */ + r = xfopenat(dir_fd, filename, "re", O_NOFOLLOW, &passwd); + else + r = RET_NERRNO(faccessat(dir_fd, filename, F_OK, AT_SYMLINK_NOFOLLOW)); + + if (r == -ENOENT) + return true; /* missing */ + if (r < 0) + return log_error_errno(r, "Failed to access %s: %m", filename); + if (arg_force) + return true; /* exists, but if --force was given we should still configure the file. */ + + if (!passwd) + return false; + + /* In case of /etc/passwd, do an additional check for the root password field. + * We first check that passwd redirects to shadow, and then we check shadow. + */ + struct passwd *i; + while ((r = fgetpwent_sane(passwd, &i)) > 0) { + if (!streq(i->pw_name, "root")) + continue; + + if (streq_ptr(i->pw_passwd, PASSWORD_SEE_SHADOW)) + break; + log_debug("passwd: root account with non-shadow password found, treating root as configured"); + return false; + } + if (r < 0) + return log_error_errno(r, "Failed to read %s: %m", filename); + if (r == 0) { + log_debug("No root account found in %s, assuming root is not configured.", filename); + return true; + } + + r = xfopenat(dir_fd, "shadow", "re", O_NOFOLLOW, &shadow); + if (r == -ENOENT) { + log_debug("No shadow file found, assuming root is not configured."); + return true; /* missing */ + } + if (r < 0) + return log_error_errno(r, "Failed to access shadow: %m"); + + struct spwd *j; + while ((r = fgetspent_sane(shadow, &j)) > 0) { + if (!streq(j->sp_namp, "root")) + continue; + + bool unprovisioned = streq_ptr(j->sp_pwdp, PASSWORD_UNPROVISIONED); + log_debug("Root account found, %s.", + unprovisioned ? "with unprovisioned password, treating root as not configured" : + "treating root as configured"); + return unprovisioned; + } + if (r < 0) + return log_error_errno(r, "Failed to read shadow: %m"); + assert(r == 0); + log_debug("No root account found in shadow, assuming root is not configured."); + return true; +} + +static bool locale_is_installed_bool(const char *name) { + return locale_is_installed(name) > 0; +} + +static bool locale_is_ok(int rfd, const char *name) { + assert(rfd >= 0); + + return dir_fd_is_root(rfd) ? locale_is_installed_bool(name) : locale_is_valid(name); +} + +static int prompt_locale(int rfd) { + _cleanup_strv_free_ char **locales = NULL; + bool acquired_from_creds = false; + int r; + + assert(rfd >= 0); + + 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-messages, 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 { + bool (*is_valid)(const char *name) = dir_fd_is_root(rfd) ? locale_is_installed_bool + : locale_is_valid; + + print_welcome(rfd); + + r = prompt_loop("Please enter system locale name or number", + locales, 60, is_valid, &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, is_valid, &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(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + char* locales[3]; + unsigned i = 0; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/locale.conf", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/locale.conf: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/locale.conf, assuming locale information has been configured."); + if (r <= 0) + return r; + + r = dir_fd_is_root(rfd); + if (r < 0) + return log_error_errno(r, "Failed to check if directory file descriptor is root: %m"); + + if (arg_copy_locale && r == 0) { + r = copy_file_atomic_at(AT_FDCWD, "/etc/locale.conf", pfd, f, 0644, COPY_REFLINK); + if (r != -ENOENT) { + if (r < 0) + return log_error_errno(r, "Failed to copy host's /etc/locale.conf: %m"); + + log_info("Copied host's /etc/locale.conf."); + return 0; + } + } + + r = prompt_locale(rfd); + 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; + + r = write_env_file(pfd, f, NULL, locales); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/locale.conf: %m"); + + log_info("/etc/locale.conf written."); + return 1; +} + +static bool keymap_exists_bool(const char *name) { + return keymap_exists(name) > 0; +} + +static typeof(&keymap_is_valid) determine_keymap_validity_func(int rfd) { + int r; + + r = dir_fd_is_root(rfd); + if (r < 0) + log_debug_errno(r, "Unable to determine if operating on host root directory, assuming we are: %m"); + + return r != 0 ? keymap_exists_bool : keymap_is_valid; +} + +static int prompt_keymap(int rfd) { + _cleanup_strv_free_ char **kmaps = NULL; + int r; + + assert(rfd >= 0); + + 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(rfd); + + return prompt_loop("Please enter system keymap name or number", + kmaps, 60, determine_keymap_validity_func(rfd), &arg_keymap); +} + +static int process_keymap(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + char **keymap; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/vconsole.conf", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/vconsole.conf: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/vconsole.conf, assuming console has been configured."); + if (r <= 0) + return r; + + r = dir_fd_is_root(rfd); + if (r < 0) + return log_error_errno(r, "Failed to check if directory file descriptor is root: %m"); + + if (arg_copy_keymap && r == 0) { + r = copy_file_atomic_at(AT_FDCWD, "/etc/vconsole.conf", pfd, f, 0644, COPY_REFLINK); + if (r != -ENOENT) { + if (r < 0) + return log_error_errno(r, "Failed to copy host's /etc/vconsole.conf: %m"); + + log_info("Copied host's /etc/vconsole.conf."); + return 0; + } + } + + r = prompt_keymap(rfd); + 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 = write_vconsole_conf(pfd, f, keymap); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/vconsole.conf: %m"); + + log_info("/etc/vconsole.conf written."); + return 1; +} + +static bool timezone_is_valid_log_error(const char *name) { + return timezone_is_valid(name, LOG_ERR); +} + +static int prompt_timezone(int rfd) { + _cleanup_strv_free_ char **zones = NULL; + int r; + + assert(rfd >= 0); + + 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(rfd); + + 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(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + const char *e; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/localtime", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/localtime: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/localtime, assuming timezone has been configured."); + if (r <= 0) + return r; + + r = dir_fd_is_root(rfd); + if (r < 0) + return log_error_errno(r, "Failed to check if directory file descriptor is root: %m"); + + if (arg_copy_timezone && r == 0) { + _cleanup_free_ char *s = NULL; + + r = readlink_malloc("/etc/localtime", &s); + if (r != -ENOENT) { + if (r < 0) + return log_error_errno(r, "Failed to read host's /etc/localtime: %m"); + + r = symlinkat_atomic_full(s, pfd, f, /* make_relative= */ false); + if (r < 0) + return log_error_errno(r, "Failed to create /etc/localtime symlink: %m"); + + log_info("Copied host's /etc/localtime."); + return 0; + } + } + + r = prompt_timezone(rfd); + if (r < 0) + return r; + + if (isempty(arg_timezone)) + return 0; + + e = strjoina("../usr/share/zoneinfo/", arg_timezone); + + r = symlinkat_atomic_full(e, pfd, f, /* make_relative= */ false); + if (r < 0) + return log_error_errno(r, "Failed to create /etc/localtime symlink: %m"); + + log_info("/etc/localtime written"); + return 0; +} + +static int prompt_hostname(int rfd) { + int r; + + assert(rfd >= 0); + + if (arg_hostname) + return 0; + + if (!arg_prompt_hostname) { + log_debug("Prompting for hostname was not requested."); + return 0; + } + + print_welcome(rfd); + 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(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/hostname", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/hostname: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/hostname, assuming hostname has been configured."); + if (r <= 0) + return r; + + r = prompt_hostname(rfd); + if (r < 0) + return r; + + if (isempty(arg_hostname)) + return 0; + + r = write_string_file_at(pfd, f, arg_hostname, + WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/hostname: %m"); + + log_info("/etc/hostname written."); + return 0; +} + +static int process_machine_id(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/machine-id", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/machine-id: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/machine-id, assuming machine-id has been configured."); + if (r <= 0) + return r; + + if (sd_id128_is_null(arg_machine_id)) { + log_debug("Initialization of machine-id was not requested, skipping."); + return 0; + } + + r = write_string_file_at(pfd, "machine-id", SD_ID128_TO_STRING(arg_machine_id), + WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/machine-id: %m"); + + log_info("/etc/machine-id written."); + return 0; +} + +static int prompt_root_password(int rfd) { + const char *msg1, *msg2; + int r; + + assert(rfd >= 0); + + 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(rfd); + 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 = check_password_quality(*a, /* old */ NULL, "root", &error); + if (ERRNO_IS_NEG_NOT_SUPPORTED(r)) + log_warning("Password quality check is not supported, proceeding anyway."); + else if (r < 0) + return log_error_errno(r, "Failed to check password quality: %m"); + else 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(int rfd, const char *path) { + int r; + + assert(path); + + if (!valid_shell(path)) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid shell", path); + + r = chaseat(rfd, path, CHASE_AT_RESOLVE_IN_ROOT, NULL, NULL); + if (r < 0) + return log_error_errno(r, "Failed to resolve shell %s: %m", path); + + return 0; +} + +static int prompt_root_shell(int rfd) { + int r; + + assert(rfd >= 0); + + 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(rfd); + 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(rfd, s); + if (r < 0) + continue; + + arg_root_shell = TAKE_PTR(s); + break; + } + + return 0; +} + +static int write_root_passwd(int rfd, int etc_fd, 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_at_label(etc_fd, "passwd", "passwd", &passwd, &passwd_tmp); + if (r < 0) + return r; + + r = xfopenat(etc_fd, "passwd", "re", O_NOFOLLOW, &original); + if (r < 0 && r != -ENOENT) + return r; + + 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_at(rfd)), + }; + + 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 = renameat_and_apply_smack_floor_label(etc_fd, passwd_tmp, etc_fd, "passwd"); + if (r < 0) + return r; + + return 0; +} + +static int write_root_shadow(int etc_fd, 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_at_label(etc_fd, "shadow", "shadow", &shadow, &shadow_tmp); + if (r < 0) + return r; + + r = xfopenat(etc_fd, "shadow", "re", O_NOFOLLOW, &original); + if (r < 0 && r != -ENOENT) + return r; + + 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 = renameat_and_apply_smack_floor_label(etc_fd, shadow_tmp, etc_fd, "shadow"); + if (r < 0) + return r; + + return 0; +} + +static int process_root_account(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_(release_lock_file) LockFile lock = LOCK_FILE_INIT; + _cleanup_(erase_and_freep) char *_hashed_password = NULL; + const char *password, *hashed_password; + int k = 0, r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/passwd", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + NULL); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/passwd: %m"); + + /* Ensure that passwd and shadow are in the same directory and are not symlinks. */ + + FOREACH_STRING(s, "passwd", "shadow") { + r = verify_regular_at(pfd, s, /* follow = */ false); + if (IN_SET(r, -EISDIR, -ELOOP, -EBADFD)) + return log_error_errno(r, "/etc/%s is not a regular file", s); + if (r < 0 && r != -ENOENT) + return log_error_errno(r, "Failed to check whether /etc/%s is a regular file: %m", s); + + r = should_configure(pfd, s); + if (r < 0) + return r; + + k += r; + } + + if (k == 0) { + log_debug("Found /etc/passwd and /etc/shadow, assuming root account has been initialized."); + 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; + } + + r = make_lock_file_at(pfd, ETC_PASSWD_LOCK_FILENAME, LOCK_EX, &lock); + if (r < 0) + return log_error_errno(r, "Failed to take a lock on /etc/passwd: %m"); + + k = dir_fd_is_root(rfd); + if (k < 0) + return log_error_errno(k, "Failed to check if directory file descriptor is root: %m"); + + if (arg_copy_root_shell && k == 0) { + 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(rfd); + if (r < 0) + return r; + + if (arg_copy_root_password && k == 0) { + 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(rfd); + 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(rfd, pfd, password, arg_root_shell); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/passwd: %m"); + + log_info("/etc/passwd written."); + + r = write_root_shadow(pfd, hashed_password); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/shadow: %m"); + + log_info("/etc/shadow written."); + return 0; +} + +static int process_kernel_cmdline(int rfd) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + int r; + + assert(rfd >= 0); + + pfd = chase_and_open_parent_at(rfd, "/etc/kernel/cmdline", + CHASE_AT_RESOLVE_IN_ROOT|CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW, + &f); + if (pfd < 0) + return log_error_errno(pfd, "Failed to chase /etc/kernel/cmdline: %m"); + + r = should_configure(pfd, f); + if (r == 0) + log_debug("Found /etc/kernel/cmdline, assuming kernel command line has been configured."); + if (r <= 0) + return r; + + if (!arg_kernel_cmdline) { + log_debug("Creation of /etc/kernel/cmdline was not requested, skipping."); + return 0; + } + + r = write_string_file_at(pfd, "cmdline", arg_kernel_cmdline, + WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC); + if (r < 0) + return log_error_errno(r, "Failed to write /etc/kernel/cmdline: %m"); + + log_info("/etc/kernel/cmdline written."); + return 0; +} + +static int reset_one(int rfd, const char *path) { + _cleanup_close_ int pfd = -EBADF; + _cleanup_free_ char *f = NULL; + + assert(rfd >= 0); + assert(path); + + pfd = chase_and_open_parent_at(rfd, path, CHASE_AT_RESOLVE_IN_ROOT|CHASE_WARN|CHASE_NOFOLLOW, &f); + if (pfd == -ENOENT) + return 0; + if (pfd < 0) + return log_error_errno(pfd, "Failed to resolve %s: %m", path); + + if (unlinkat(pfd, f, 0) < 0) + return errno == ENOENT ? 0 : log_error_errno(errno, "Failed to remove %s: %m", path); + + log_info("Removed %s", path); + return 0; +} + +static int process_reset(int rfd) { + int r; + + assert(rfd >= 0); + + if (!arg_reset) + return 0; + + FOREACH_STRING(p, + "/etc/locale.conf", + "/etc/vconsole.conf", + "/etc/hostname", + "/etc/machine-id", + "/etc/kernel/cmdline", + "/etc/localtime") { + r = reset_one(rfd, p); + if (r < 0) + return r; + } + + 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 disk image as filesystem root\n" + " --image-policy=POLICY Specify disk image dissection policy\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" + " --setup-machine-id Set a random machine ID\n" + " --machine-id=ID Set specified 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" + " --kernel-command-line=CMDLINE\n" + " Set kernel command line\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" + " --force Overwrite existing files\n" + " --delete-root-password Delete root password\n" + " --welcome=no Disable the welcome text\n" + " --reset Remove existing files\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_IMAGE_POLICY, + ARG_LOCALE, + ARG_LOCALE_MESSAGES, + ARG_KEYMAP, + ARG_TIMEZONE, + ARG_HOSTNAME, + ARG_SETUP_MACHINE_ID, + 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_FORCE, + ARG_DELETE_ROOT_PASSWORD, + ARG_WELCOME, + ARG_RESET, + }; + + 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 }, + { "image-policy", required_argument, NULL, ARG_IMAGE_POLICY }, + { "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 }, + { "setup-machine-id", no_argument, NULL, ARG_SETUP_MACHINE_ID }, + { "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 }, + { "force", no_argument, NULL, ARG_FORCE }, + { "delete-root-password", no_argument, NULL, ARG_DELETE_ROOT_PASSWORD }, + { "welcome", required_argument, NULL, ARG_WELCOME }, + { "reset", no_argument, NULL, ARG_RESET }, + {} + }; + + 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_IMAGE_POLICY: + r = parse_image_policy_argument(optarg, &arg_image_policy); + 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 = 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_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_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_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 ARG_RESET: + arg_reset = true; + break; + + case '?': + return -EINVAL; + + default: + assert_not_reached(); + } + + 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), + "--root= and --image= cannot be used together."); + + if (!sd_id128_is_null(arg_machine_id) && !(arg_image || arg_root) && !arg_force) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), + "--machine-id=/--setup-machine-id only works with --root= or --image=."); + + return 1; +} + +static int reload_system_manager(sd_bus **bus) { + int r; + + assert(bus); + + if (!*bus) { + r = bus_connect_transport_systemd(BUS_TRANSPORT_LOCAL, NULL, RUNTIME_SCOPE_SYSTEM, bus); + if (r < 0) + return bus_log_connect_error(r, BUS_TRANSPORT_LOCAL); + } + + r = bus_service_manager_reload(*bus); + if (r < 0) + return r; + + log_info("Requested manager reload to apply locale configuration."); + return 0; +} + +static int reload_vconsole(sd_bus **bus) { + _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; + _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL; + _cleanup_(bus_wait_for_jobs_freep) BusWaitForJobs *w = NULL; + const char *object; + int r; + + assert(bus); + + if (!*bus) { + r = bus_connect_transport_systemd(BUS_TRANSPORT_LOCAL, NULL, RUNTIME_SCOPE_SYSTEM, bus); + if (r < 0) + return bus_log_connect_error(r, BUS_TRANSPORT_LOCAL); + } + + r = bus_wait_for_jobs_new(*bus, &w); + if (r < 0) + return log_error_errno(r, "Could not watch jobs: %m"); + + r = bus_call_method(*bus, bus_systemd_mgr, "RestartUnit", &error, &reply, + "ss", "systemd-vconsole-setup.service", "replace"); + if (r < 0) + return log_error_errno(r, "Failed to issue method call: %s", bus_error_message(&error, r)); + + r = sd_bus_message_read(reply, "o", &object); + if (r < 0) + return bus_log_parse_error(r); + + r = bus_wait_for_jobs_one(w, object, false, NULL); + if (r < 0) + return log_error_errno(r, "Failed to wait for systemd-vconsole-setup.service/restart: %m"); + return 0; +} + +static int run(int argc, char *argv[]) { + _cleanup_(sd_bus_flush_close_unrefp) sd_bus *bus = NULL; + _cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL; + _cleanup_(umount_and_freep) char *mounted_dir = NULL; + _cleanup_close_ int rfd = -EBADF; + int r; + + r = parse_argv(argc, argv); + if (r <= 0) + return r; + + log_setup(); + + umask(0022); + + bool offline = arg_root || arg_image; + + if (!offline) { + /* 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) */ + + bool enabled; + r = proc_cmdline_get_bool("systemd.firstboot", /* flags = */ 0, &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, + arg_image_policy, + DISSECT_IMAGE_GENERIC_ROOT | + DISSECT_IMAGE_REQUIRE_ROOT | + DISSECT_IMAGE_VALIDATE_OS | + DISSECT_IMAGE_RELAX_VAR_CHECK | + DISSECT_IMAGE_FSCK | + DISSECT_IMAGE_GROWFS, + &mounted_dir, + &rfd, + &loop_device); + if (r < 0) + return r; + + arg_root = strdup(mounted_dir); + if (!arg_root) + return log_oom(); + } else { + rfd = open(empty_to_root(arg_root), O_DIRECTORY|O_CLOEXEC); + if (rfd < 0) + return log_error_errno(errno, "Failed to open %s: %m", empty_to_root(arg_root)); + } + + LOG_SET_PREFIX(arg_image ?: arg_root); + + /* We check these conditions here instead of in parse_argv() so that we can take the root directory + * into account. */ + + if (arg_keymap && !determine_keymap_validity_func(rfd)(arg_keymap)) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Keymap %s is not installed.", arg_keymap); + if (arg_locale && !locale_is_ok(rfd, arg_locale)) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale); + if (arg_locale_messages && !locale_is_ok(rfd, arg_locale_messages)) + return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages); + + if (arg_root_shell) { + r = find_shell(rfd, arg_root_shell); + if (r < 0) + return r; + } + + r = process_reset(rfd); + if (r < 0) + return r; + + r = process_locale(rfd); + if (r < 0) + return r; + if (r > 0 && !offline) + (void) reload_system_manager(&bus); + + r = process_keymap(rfd); + if (r < 0) + return r; + if (r > 0 && !offline) + (void) reload_vconsole(&bus); + + r = process_timezone(rfd); + if (r < 0) + return r; + + r = process_hostname(rfd); + if (r < 0) + return r; + + r = process_machine_id(rfd); + if (r < 0) + return r; + + r = process_root_account(rfd); + if (r < 0) + return r; + + r = process_kernel_cmdline(rfd); + if (r < 0) + return r; + + return 0; +} + +DEFINE_MAIN_FUNCTION(run); diff --git a/src/firstboot/meson.build b/src/firstboot/meson.build new file mode 100644 index 0000000..28c1d27 --- /dev/null +++ b/src/firstboot/meson.build @@ -0,0 +1,11 @@ +# SPDX-License-Identifier: LGPL-2.1-or-later + +executables += [ + executable_template + { + 'name' : 'systemd-firstboot', + 'public' : true, + 'conditions' : ['ENABLE_FIRSTBOOT'], + 'sources' : files('firstboot.c'), + 'dependencies' : libcrypt, + }, +] |