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c7837840f5747694838a6b36b6eee8e82b221889
systemd/src/firstboot/firstboot.c
T
Arian van Putten c7837840f5 firstboot: apply hostname via hostnamed varlink API 
Previously we just wrote /etc/hostname and returned. The kernel hostname
was left at whatever PID 1 sethostname()'d very early in boot (before
/etc/hostname existed), which meant hostnamectl reported the transient
hostname instead of the static one until the next reboot.

Call io.systemd.Hostname.SetStaticHostname on the running system so
hostnamed writes /etc/hostname and updates the kernel hostname in one
step. If hostnamed is unreachable (masked or absent on minimal images)
fall back to writing /etc/hostname directly. --root=/--image= also keeps
writing the file directly, since hostnamed only manages the running
system.
2026-08-28 06:29:58 +09:00

1871 lines
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/* SPDX-License-Identifier: LGPL-2.1-or-later */
#include <fcntl.h>
#include <unistd.h>
#include "sd-bus.h"
#include "sd-id128.h"
#include "sd-json.h"
#include "sd-varlink.h"
#include "alloc-util.h"
#include "ansi-color.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 "dlopen-note.h"
#include "env-file.h"
#include "errno-util.h"
#include "fd-util.h"
#include "fileio.h"
#include "firstboot-util.h"
#include "fs-util.h"
#include "glyph-util.h"
#include "hostname-setup.h"
#include "hostname-util.h"
#include "image-policy.h"
#include "kbd-util.h"
#include "label-util.h"
#include "libcrypt-util.h"
#include "locale-setup.h"
#include "locale-util.h"
#include "lock-util.h"
#include "loop-util.h"
#include "main-func.h"
#include "memory-util.h"
#include "mount-util.h"
#include "os-util.h"
#include "parse-argument.h"
#include "password-quality-util.h"
#include "path-util.h"
#include "plymouth-util.h"
#include "prompt-util.h"
#include "runtime-scope.h"
#include "smack-util.h"
#include "stat-util.h"
#include "string-util.h"
#include "strv.h"
#include "terminal-util.h"
#include "time-util.h"
#include "tmpfile-util.h"
#include "user-util.h"
#include "vconsole-util.h"
#include "verbs.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_machine_tags = NULL;
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_keymap_auto = 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_headless = 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 bool arg_chrome = true;
static bool arg_mute_console = false;
static LabelContext *arg_label_context = 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_machine_tags, strv_freep);
STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
STATIC_DESTRUCTOR_REGISTER(arg_root_shell, freep);
STATIC_DESTRUCTOR_REGISTER(arg_kernel_cmdline, freep);
STATIC_DESTRUCTOR_REGISTER(arg_image_policy, image_policy_freep);
STATIC_DESTRUCTOR_REGISTER(arg_label_context, mac_label_context_freep);
COMMAND(
"systemd-firstboot\0",
"Configure basic settings of the system.",
.man_pages = "systemd-firstboot.1\0",
);
static bool welcome_done = false;
static void print_welcome(int rfd, sd_varlink **mute_console_link) {
_cleanup_free_ char *pretty_name = NULL, *os_name = NULL, *ansi_color = NULL, *fancy_name = NULL;
const char *pn, *ac;
int r;
assert(rfd >= 0);
assert(mute_console_link);
/* Needs to be called before mute_console or it will garble the screen */
if (arg_welcome)
(void) plymouth_hide_splash();
if (!*mute_console_link && arg_mute_console)
(void) mute_console(mute_console_link);
if (!arg_welcome)
return;
if (welcome_done) {
putchar('\n'); /* Add some breathing room between multiple prompts */
return;
}
(void) terminal_reset_defensive_locked(STDOUT_FILENO, /* flags= */ 0);
if (arg_chrome)
chrome_show("Initial Setup", /* bottom= */ NULL);
r = parse_os_release_at(rfd,
"PRETTY_NAME", &pretty_name,
"FANCY_NAME", &fancy_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 (use_fancy_name(unescape_fancy_name(&fancy_name)))
printf(ANSI_HIGHLIGHT "Welcome to " ANSI_NORMAL "%s" ANSI_HIGHLIGHT "!" ANSI_NORMAL "\n", fancy_name);
else if (colors_enabled())
printf(ANSI_HIGHLIGHT "Welcome to " ANSI_NORMAL "\x1B[%sm%s" ANSI_HIGHLIGHT "!" ANSI_NORMAL "\n", ac, pn);
else
printf("Welcome to %s!\n", pn);
putchar('\n');
if (emoji_enabled()) {
fputs(glyph(GLYPH_SPARKLES), stdout);
putchar(' ');
}
printf("Please configure the system!\n\n");
welcome_done = true;
}
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 int locale_is_ok(const char *name, void *userdata) {
int rfd = ASSERT_FD(PTR_TO_FD(userdata)), 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 ? locale_is_installed(name) > 0 : locale_is_valid(name);
}
static bool headless_skips_prompt_for(const char *what) {
assert(what);
if (!arg_headless)
return false;
log_debug("Running headless, not prompting for %s.", what);
return true;
}
static int prompt_locale(int rfd, sd_varlink **mute_console_link) {
_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 {
if (headless_skips_prompt_for("locale"))
return 0;
print_welcome(rfd, mute_console_link);
_cleanup_free_ char *prefill = NULL;
(void) locale_lang_from_efi(&prefill, LOCALE_REQUIRE_INSTALLED|LOCALE_SUPPRESS_EN_US);
r = prompt_loop("Please enter the new system locale name or number",
GLYPH_WORLD,
prefill,
locales,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 60,
/* n_columns= */ 3,
/* column_width= */ 20,
locale_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP|PROMPT_SHOW_MENU,
&arg_locale);
if (r < 0)
return r;
if (isempty(arg_locale))
return 0;
r = prompt_loop("Please enter the new system message locale name or number",
GLYPH_WORLD,
/* prefill= */ NULL,
locales,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 60,
/* n_columns= */ 3,
/* column_width= */ 20,
locale_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP|PROMPT_SHOW_MENU,
&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, sd_varlink **mute_console_link) {
_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, rfd, etc_locale_conf(),
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_flags= */ 0);
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, mute_console_link);
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_label(
pfd,
f,
/* headers= */ NULL,
locales,
WRITE_ENV_FILE_LABEL,
arg_label_context);
if (r < 0)
return log_error_errno(r, "Failed to write /etc/locale.conf: %m");
log_info("/etc/locale.conf written.");
return 1;
}
static int keymap_is_ok(const char* name, void *userdata) {
int rfd = ASSERT_FD(PTR_TO_FD(userdata)), 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(name) > 0 : keymap_is_valid(name);
}
static int prompt_keymap(int rfd, sd_varlink **mute_console_link) {
_cleanup_strv_free_ char **kmaps = NULL;
int r;
assert(rfd >= 0);
if (arg_keymap)
return 0;
_cleanup_free_ char *km = NULL;
r = read_credential("firstboot.keymap", (void**) &km, NULL);
if (r < 0)
log_debug_errno(r, "Failed to read credential firstboot.keymap, ignoring: %m");
else if (!keymap_is_valid(km))
log_warning_errno(SYNTHETIC_ERRNO(EINVAL), "Keymap '%s' supplied via credential is not valid, ignoring.", km);
else {
log_debug("Acquired keymap from credential.");
arg_keymap = TAKE_PTR(km);
return 0;
}
bool b;
if (arg_prompt_keymap_auto) {
_cleanup_free_ char *ttyname = NULL;
r = getttyname_harder(STDOUT_FILENO, &ttyname);
if (r < 0) {
log_debug_errno(r, "Cannot determine TTY we are connected, ignoring: %m");
b = false; /* if we can't resolve this, it's probably not a VT */
} else {
b = tty_is_vc_resolve(ttyname);
log_debug("Detected connection to local console: %s", yes_no(b));
}
} else
b = arg_prompt_keymap;
if (!b) {
log_debug("Prompting for keymap was not requested.");
return 0;
}
if (headless_skips_prompt_for("keymap"))
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, mute_console_link);
_cleanup_free_ char *prefill = NULL;
(void) vconsole_keymap_from_efi(&prefill);
return prompt_loop(
"Please enter the new keymap name or number",
GLYPH_KEYBOARD,
prefill,
kmaps,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 60,
/* n_columns= */ 3,
/* column_width= */ 20,
keymap_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP|PROMPT_SHOW_MENU,
&arg_keymap);
}
static int process_keymap(int rfd, sd_varlink **mute_console_link) {
_cleanup_close_ int pfd = -EBADF;
_cleanup_free_ char *f = NULL;
_cleanup_strv_free_ char **keymap = NULL;
int r;
assert(rfd >= 0);
pfd = chase_and_open_parent_at(rfd, rfd, etc_vconsole_conf(),
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_flags= */ 0);
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, mute_console_link);
if (r == -ENOENT)
return 0; /* don't fail if no keymaps are installed */
if (r < 0)
return r;
if (isempty(arg_keymap))
return 0;
VCContext vc = {
.keymap = arg_keymap,
};
_cleanup_(x11_context_clear) X11Context xc = {};
r = vconsole_convert_to_x11(&vc, /* verify= */ NULL, &xc);
if (r < 0)
return log_error_errno(r, "Failed to convert keymap data: %m");
r = vconsole_serialize(&vc, &xc, &keymap);
if (r < 0)
return log_error_errno(r, "Failed to serialize keymap data: %m");
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 int timezone_is_ok(const char *name, void *userdata) {
return timezone_is_valid(name, LOG_DEBUG);
}
static int prompt_timezone(int rfd, sd_varlink **mute_console_link) {
_cleanup_strv_free_ char **zones = NULL;
int r;
assert(rfd >= 0);
if (arg_timezone)
return 0;
_cleanup_free_ char *tz = NULL;
r = read_credential("firstboot.timezone", (void**) &tz, NULL);
if (r < 0)
log_debug_errno(r, "Failed to read credential firstboot.timezone, ignoring: %m");
else if (!timezone_is_valid(tz, LOG_DEBUG))
log_warning_errno(SYNTHETIC_ERRNO(EINVAL), "Timezone '%s' supplied via credential is not valid, ignoring.", tz);
else {
log_debug("Acquired timezone from credential.");
arg_timezone = TAKE_PTR(tz);
return 0;
}
if (!arg_prompt_timezone) {
log_debug("Prompting for timezone was not requested.");
return 0;
}
if (headless_skips_prompt_for("timezone"))
return 0;
r = get_timezones(&zones);
if (r < 0)
return log_error_errno(r, "Cannot query timezone list: %m");
print_welcome(rfd, mute_console_link);
return prompt_loop(
"Please enter the new timezone name or number",
GLYPH_CLOCK,
/* prefill= */ NULL,
zones,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 30,
/* n_columns= */ 3,
/* column_width= */ 20,
timezone_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP|PROMPT_SHOW_MENU,
&arg_timezone);
}
static int process_timezone(int rfd, sd_varlink **mute_console_link) {
_cleanup_close_ int pfd = -EBADF;
_cleanup_free_ char *f = NULL, *relpath = NULL;
const char *e;
int r;
assert(rfd >= 0);
pfd = chase_and_open_parent_at(rfd, rfd, etc_localtime(),
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_label(s, pfd, f, SYMLINK_LABEL, arg_label_context);
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, mute_console_link);
if (r < 0)
return r;
if (isempty(arg_timezone))
return 0;
e = strjoina("/usr/share/zoneinfo/", arg_timezone);
r = path_make_relative_parent(etc_localtime(), e, &relpath);
if (r < 0)
return r;
r = symlinkat_atomic_full_label(relpath, pfd, f, SYMLINK_LABEL, arg_label_context);
if (r < 0)
return log_error_errno(r, "Failed to create /etc/localtime symlink: %m");
log_info("/etc/localtime written");
return 0;
}
static int hostname_is_ok(const char *name, void *userdata) {
return hostname_is_valid(name, VALID_HOSTNAME_TRAILING_DOT);
}
static int prompt_hostname(int rfd, sd_varlink **mute_console_link) {
int r;
assert(rfd >= 0);
if (arg_hostname)
return 0;
_cleanup_free_ char *hn = NULL;
r = read_credential("firstboot.hostname", (void**) &hn, NULL);
if (r < 0)
log_debug_errno(r, "Failed to read credential firstboot.hostname, ignoring: %m");
else if (!hostname_is_valid(hn, VALID_HOSTNAME_TRAILING_DOT|VALID_HOSTNAME_QUESTION_MARK|VALID_HOSTNAME_WORD_TOKEN))
log_warning_errno(SYNTHETIC_ERRNO(EINVAL), "Hostname '%s' supplied via credential is not valid, ignoring.", hn);
else {
log_debug("Acquired hostname from credentials.");
arg_hostname = TAKE_PTR(hn);
hostname_cleanup(arg_hostname);
return 0;
}
if (!arg_prompt_hostname) {
log_debug("Prompting for hostname was not requested.");
return 0;
}
if (headless_skips_prompt_for("hostname"))
return 0;
print_welcome(rfd, mute_console_link);
r = prompt_loop("Please enter the new hostname",
GLYPH_LABEL,
/* prefill= */ NULL,
/* menu= */ NULL,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 100,
/* n_columns= */ 3,
/* column_width= */ 20,
hostname_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP,
&arg_hostname);
if (r < 0)
return r;
if (arg_hostname)
hostname_cleanup(arg_hostname);
return 0;
}
static int process_hostname(int rfd, sd_varlink **mute_console_link) {
_cleanup_close_ int pfd = -EBADF;
_cleanup_free_ char *f = NULL;
int r;
assert(rfd >= 0);
pfd = chase_and_open_parent_at(rfd, rfd, etc_hostname(), 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, mute_console_link);
if (r < 0)
return r;
if (isempty(arg_hostname))
return 0;
/* On running systems we have a machine ID, so resolve any '?'/'$' wildcards now and persist them.
* This "freezes" the name, so later word list updates do not change it. When operating on an offline
* image (--root=/--image=) the target's machine ID is not known yet, so write the template verbatim
* and let it be resolved on each first boot. */
const char *hostname = arg_hostname;
_cleanup_free_ char *resolved = NULL;
_cleanup_(sd_varlink_unrefp) sd_varlink *vl = NULL;
if (!arg_root) {
r = hostname_substitute_wildcards(arg_hostname, &resolved);
if (r < 0)
log_warning_errno(r, "Failed to resolve wildcards in hostname '%s', writing it verbatim: %m", arg_hostname);
else if (!hostname_is_valid(resolved, VALID_HOSTNAME_TRAILING_DOT))
log_warning("Resolved hostname '%s' is invalid, writing template '%s' verbatim instead.", resolved, arg_hostname);
else {
hostname = resolved;
r = sd_varlink_connect_address(&vl, "/run/systemd/io.systemd.Hostname");
if (r < 0)
log_warning_errno(r, "Failed to connect to systemd-hostnamed, writing /etc/hostname directly: %m");
}
}
if (vl) {
_cleanup_(sd_json_variant_unrefp) sd_json_variant *reply = NULL;
const char *error_id = NULL;
r = sd_varlink_callbo(
vl,
"io.systemd.Hostname.SetStaticHostname",
&reply,
&error_id,
SD_JSON_BUILD_PAIR_STRING("newValue", hostname));
if (r < 0)
log_warning_errno(r, "Failed to call io.systemd.Hostname.SetStaticHostname, writing /etc/hostname directly: %m");
else if (error_id)
log_warning_errno(sd_varlink_error_to_errno(error_id, reply),
"Failed to set static hostname, writing /etc/hostname directly: %s", error_id);
else {
log_info("Static hostname configured via systemd-hostnamed.");
return 0;
}
}
r = write_string_file_full_label(
pfd, f, hostname,
WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL,
/* ts= */ NULL, /* label_fn= */ NULL, arg_label_context);
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, rfd, "/etc/machine-id",
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_full_label(pfd, "machine-id", SD_ID128_TO_STRING(arg_machine_id),
WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL,
/* ts= */ NULL, /* label_fn= */ NULL, arg_label_context);
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 process_machine_tags(int rfd) {
int r;
assert(rfd >= 0);
_cleanup_free_ char *f = NULL;
_cleanup_close_ int pfd = chase_and_open_parent_at(
/* root_fd= */ rfd,
/* dir_fd= */ rfd,
"/etc/machine-info",
CHASE_MKDIR_0755|CHASE_WARN|CHASE_NOFOLLOW,
&f);
if (pfd < 0)
return log_error_errno(pfd, "Failed to chase /etc/machine-info parent: %m");
r = should_configure(pfd, f);
if (r == 0)
log_debug("Found /etc/machine-info, assuming machine tags have been configured.");
if (r <= 0)
return r;
if (!arg_machine_tags) {
_cleanup_free_ char *tags = NULL;
r = read_credential("firstboot.machine-tags", (void**) &tags, /* ret_size= */ NULL);
if (r < 0)
log_debug_errno(r, "Failed to read credential firstboot.machine-tags, ignoring: %m");
else {
_cleanup_strv_free_ char **l = NULL;
r = machine_tags_from_string(tags, /* graceful= */ false, &l);
if (r < 0)
log_warning_errno(r, "Failed to parse machine tags '%s', ignoring credential: %m", tags);
else {
strv_free_and_replace(arg_machine_tags, l);
log_debug("Acquired machine tags list from credentials.");
}
}
}
/* NB: We do not prompt for machine tags, at least not for now */
if (!arg_machine_tags) {
log_debug("Initialization of machine tags was not requested, skipping.");
return 0;
}
_cleanup_free_ char *j = strv_join(arg_machine_tags, ":");
if (!j)
return log_oom();
_cleanup_free_ char *c = strjoin("TAGS=\"", j, "\"\n");
if (!c)
return log_oom();
r = write_string_file_full_label(
pfd,
"machine-info",
c,
WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL,
/* ts= */ NULL, /* label_fn= */ NULL, arg_label_context);
if (r < 0)
return log_error_errno(r, "Failed to write /etc/machine-info: %m");
log_info("/etc/machine-info written.");
return 0;
}
static int prompt_root_password(int rfd, sd_varlink **mute_console_link) {
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;
}
if (headless_skips_prompt_for("root password"))
return 0;
print_welcome(rfd, mute_console_link);
msg1 = "Please enter the new root password (empty to skip):";
msg2 = "Please enter the new root password again:";
suggest_passwords();
for (;;) {
_cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
_cleanup_free_ char *error = NULL;
AskPasswordRequest req = {
.tty_fd = -EBADF,
.message = msg1,
.until = USEC_INFINITY,
.hup_fd = -EBADF,
};
r = ask_password_tty(&req, /* flags= */ 0, &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_info("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);
req.message = msg2;
r = ask_password_tty(&req, /* flags= */ 0, &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, rfd, path, /* flags= */ 0, /* ret_path= */ NULL, /* ret_fd= */ NULL);
if (r < 0)
return log_error_errno(r, "Failed to resolve shell %s: %m", path);
return 0;
}
static int shell_is_ok(const char *path, void *userdata) {
int rfd = ASSERT_FD(PTR_TO_FD(userdata));
return find_shell(rfd, path) >= 0;
}
static int prompt_root_shell(int rfd, sd_varlink **mute_console_link) {
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 {
r = find_shell(rfd, arg_root_shell);
if (r < 0)
return r;
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;
}
if (headless_skips_prompt_for("root shell"))
return 0;
print_welcome(rfd, mute_console_link);
return prompt_loop(
"Please enter the new root shell",
GLYPH_SHELL,
/* prefill= */ NULL,
/* menu= */ NULL,
/* accepted= */ NULL,
/* ellipsize_percentage= */ 0,
/* n_columns= */ 3,
/* column_width= */ 20,
shell_is_ok,
/* refresh= */ NULL,
FD_TO_PTR(rfd),
PROMPT_MAY_SKIP,
&arg_root_shell);
}
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;
bool found = false;
r = fopen_temporary_at_label(etc_fd, "passwd", "passwd", &passwd, &passwd_tmp, arg_label_context);
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")) {
if (password)
i->pw_passwd = (char *) password;
if (shell)
i->pw_shell = (char *) shell;
found = true;
}
r = putpwent_sane(i, passwd);
if (r < 0)
return r;
}
if (r < 0)
return r;
} else {
r = fchmod(fileno(passwd), 0644);
if (r < 0)
return -errno;
}
if (!found) {
struct passwd root = {
.pw_name = (char *) "root",
.pw_passwd = (char *) (password ?: PASSWORD_SEE_SHADOW),
.pw_uid = 0,
.pw_gid = 0,
.pw_gecos = (char *) "Super User",
.pw_dir = (char *) "/root",
.pw_shell = (char *) (shell ?: default_root_shell_at(rfd)),
};
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;
bool found = false;
r = fopen_temporary_at_label(etc_fd, "shadow", "shadow", &shadow, &shadow_tmp, arg_label_context);
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")) {
if (hashed_password) {
i->sp_pwdp = (char *) hashed_password;
i->sp_lstchg = (long) (now(CLOCK_REALTIME) / USEC_PER_DAY);
}
found = true;
}
r = putspent_sane(i, shadow);
if (r < 0)
return r;
}
if (r < 0)
return r;
} else {
r = fchmod(fileno(shadow), 0000);
if (r < 0)
return -errno;
}
if (!found) {
struct spwd root = {
.sp_namp = (char*) "root",
.sp_pwdp = (char *) (hashed_password ?: PASSWORD_LOCKED_AND_INVALID),
.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 ... */
};
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, sd_varlink **mute_console_link) {
_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, rfd, "/etc/passwd",
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 (r < 0 && r != -ENOENT)
return log_error_errno(r, "Verification of /etc/%s being regular file failed: %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;
}
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) {
_cleanup_free_ struct passwd *p = NULL;
r = getpwnam_malloc("root", &p);
if (r < 0)
return log_error_errno(r, "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, mute_console_link);
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, mute_console_link);
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 = PASSWORD_SEE_SHADOW;
hashed_password = PASSWORD_NONE;
} else if (!arg_root_password && arg_prompt_root_password) {
/* If the user was prompted, but no password was supplied, lock the account. */
password = PASSWORD_SEE_SHADOW;
hashed_password = PASSWORD_LOCKED_AND_INVALID;
} else
/* Leave the password as is. */
password = hashed_password = NULL;
/* Don't create/modify passwd and shadow if there's nothing to do. */
if (!(password || hashed_password || arg_root_shell)) {
log_debug("Initialization of root account was not requested, skipping.");
return 0;
}
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, rfd, "/etc/kernel/cmdline",
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_full_label(pfd, "cmdline", arg_kernel_cmdline,
WRITE_STRING_FILE_CREATE|WRITE_STRING_FILE_SYNC|WRITE_STRING_FILE_ATOMIC|WRITE_STRING_FILE_LABEL,
/* ts= */ NULL, /* label_fn= */ NULL, arg_label_context);
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, rfd, path, 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 parse_argv(int argc, char *argv[]) {
assert(argc >= 0);
assert(argv);
OptionParser opts = { argc, argv };
int r;
FOREACH_OPTION_OR_RETURN(c, &opts)
switch (c) {
OPTION_COMMON_HELP:
return command_print_help();
OPTION_COMMON_VERSION:
return version();
OPTION_LONG("root", "PATH", "Operate on an alternate filesystem root"):
r = parse_path_argument(opts.arg, true, &arg_root);
if (r < 0)
return r;
break;
OPTION_LONG("image", "PATH", "Operate on disk image as filesystem root"):
r = parse_path_argument(opts.arg, false, &arg_image);
if (r < 0)
return r;
break;
OPTION_LONG("image-policy", "POLICY", "Specify disk image dissection policy"):
r = parse_image_policy_argument(opts.arg, &arg_image_policy);
if (r < 0)
return r;
break;
OPTION_LONG("locale", "LOCALE", "Set primary locale (LANG=)"):
r = free_and_strdup_warn(&arg_locale, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("locale-messages", "LOCALE", "Set message locale (LC_MESSAGES=)"):
r = free_and_strdup_warn(&arg_locale_messages, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("keymap", "KEYMAP", "Set keymap"):
if (!keymap_is_valid(opts.arg))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"Keymap %s is not valid.", opts.arg);
r = free_and_strdup_warn(&arg_keymap, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("timezone", "TIMEZONE", "Set timezone"):
if (!timezone_is_valid(opts.arg, LOG_ERR))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"Timezone %s is not valid.", opts.arg);
r = free_and_strdup_warn(&arg_timezone, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("hostname", "NAME", "Set hostname"):
if (!hostname_is_valid(opts.arg, VALID_HOSTNAME_TRAILING_DOT|VALID_HOSTNAME_QUESTION_MARK|VALID_HOSTNAME_WORD_TOKEN))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
"Host name %s is not valid.", opts.arg);
r = free_and_strdup_warn(&arg_hostname, opts.arg);
if (r < 0)
return r;
hostname_cleanup(arg_hostname);
break;
OPTION_LONG("setup-machine-id", NULL, "Set a random 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;
OPTION_LONG("machine-id", "ID", "Set specified machine ID"):
r = sd_id128_from_string(opts.arg, &arg_machine_id);
if (r < 0)
return log_error_errno(r, "Failed to parse machine id %s.", opts.arg);
break;
OPTION_LONG("machine-tags", "TAG[:…]", "Set machine tags"): {
_cleanup_strv_free_ char **tags = NULL;
r = machine_tags_from_string(opts.arg, /* graceful= */ false, &tags);
if (r < 0)
return log_error_errno(r, "Failed to parse machine tags '%s': %m", opts.arg);
strv_free_and_replace(arg_machine_tags, tags);
break;
}
OPTION_LONG("root-password", "PASSWORD", "Set root password from plaintext password"):
r = free_and_strdup_warn(&arg_root_password, opts.arg);
if (r < 0)
return r;
arg_root_password_is_hashed = false;
break;
OPTION_LONG("root-password-file", "FILE", "Set root password from file"):
arg_root_password = mfree(arg_root_password);
r = read_one_line_file(opts.arg, &arg_root_password);
if (r < 0)
return log_error_errno(r, "Failed to read %s: %m", opts.arg);
arg_root_password_is_hashed = false;
break;
OPTION_LONG("root-password-hashed", "HASH", "Set root password from hashed password"):
r = free_and_strdup_warn(&arg_root_password, opts.arg);
if (r < 0)
return r;
arg_root_password_is_hashed = true;
break;
OPTION_LONG("root-shell", "SHELL", "Set root shell"):
r = free_and_strdup_warn(&arg_root_shell, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("kernel-command-line", "CMDLINE", "Set kernel command line"):
r = free_and_strdup_warn(&arg_kernel_cmdline, opts.arg);
if (r < 0)
return r;
break;
OPTION_LONG("prompt-locale", NULL, "Prompt the user for locale settings"):
arg_prompt_locale = true;
break;
OPTION_LONG("prompt-keymap", NULL, "Prompt the user for keymap settings"):
arg_prompt_keymap = true;
arg_prompt_keymap_auto = false;
break;
OPTION_LONG("prompt-keymap-auto", NULL,
"Prompt the user for keymap settings if invoked on local console"):
arg_prompt_keymap_auto = true;
break;
OPTION_LONG("prompt-timezone", NULL, "Prompt the user for timezone"):
arg_prompt_timezone = true;
break;
OPTION_LONG("prompt-hostname", NULL, "Prompt the user for hostname"):
arg_prompt_hostname = true;
break;
OPTION_LONG("prompt-root-password", NULL, "Prompt the user for root password"):
arg_prompt_root_password = true;
break;
OPTION_LONG("prompt-root-shell", NULL, "Prompt the user for root shell"):
arg_prompt_root_shell = true;
break;
OPTION_LONG("prompt", NULL, "Prompt for all of the above"):
arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname =
arg_prompt_root_password = arg_prompt_root_shell = true;
arg_prompt_keymap_auto = false;
break;
OPTION_LONG("copy-locale", NULL, "Copy locale from host"):
arg_copy_locale = true;
break;
OPTION_LONG("copy-keymap", NULL, "Copy keymap from host"):
arg_copy_keymap = true;
break;
OPTION_LONG("copy-timezone", NULL, "Copy timezone from host"):
arg_copy_timezone = true;
break;
OPTION_LONG("copy-root-password", NULL, "Copy root password from host"):
arg_copy_root_password = true;
break;
OPTION_LONG("copy-root-shell", NULL, "Copy root shell from host"):
arg_copy_root_shell = true;
break;
OPTION_LONG("copy", NULL, "Copy all of the above"):
arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password =
arg_copy_root_shell = true;
break;
OPTION_LONG("force", NULL, "Overwrite existing files"):
arg_force = true;
break;
OPTION_LONG("delete-root-password", NULL, "Delete root password"):
arg_delete_root_password = true;
break;
OPTION_LONG("welcome", "BOOL", "Whether to show the welcome text"):
r = parse_boolean_argument("--welcome=", opts.arg, &arg_welcome);
if (r < 0)
return r;
break;
OPTION_LONG("chrome", "BOOL",
"Whether to show a color bar at top and bottom of terminal"):
r = parse_boolean_argument("--chrome=", opts.arg, &arg_chrome);
if (r < 0)
return r;
break;
OPTION_LONG("mute-console", "BOOL",
"Whether to disallow kernel/PID 1 writes to the console while running"):
r = parse_boolean_argument("--mute-console=", opts.arg, &arg_mute_console);
if (r < 0)
return r;
break;
OPTION_LONG("reset", NULL, "Remove existing files"):
arg_reset = true;
break;
OPTION_COMMON_INTROSPECT_CLI:
return introspect_cli(SD_JSON_FORMAT_OFF);
}
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, RUNTIME_SCOPE_SYSTEM);
}
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, RUNTIME_SCOPE_SYSTEM);
}
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, BUS_WAIT_JOBS_LOG_ERROR, NULL);
if (r < 0)
return log_error_errno(r, "Failed to wait for systemd-vconsole-setup.service/restart: %m");
return 0;
}
static void end_marker(void) {
if (!welcome_done)
return;
printf("\n%sExiting first boot settings tool.%s\n\n", ansi_grey(), ansi_normal());
fflush(stdout);
}
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;
LIBBLKID_NOTE(recommended);
LIBCRYPT_NOTE(recommended);
LIBCRYPTO_NOTE(suggested);
LIBCRYPTSETUP_NOTE(suggested);
LIBMOUNT_NOTE(recommended);
LIBSELINUX_NOTE(recommended);
PASSWORD_NOTE(suggested);
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) */
FirstBootMode mode;
_cleanup_free_ char *bad = NULL;
r = firstboot_mode_from_cmdline(&mode, &bad);
if (r < 0)
return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument%s: %m",
bad ? strjoina(" (invalid value '", bad, "')") : "");
if (mode == FIRSTBOOT_NO) {
log_debug("Found systemd.firstboot=no kernel command line argument, turning off all prompts.");
arg_prompt_locale = arg_prompt_keymap = arg_prompt_keymap_auto = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = arg_prompt_root_shell = false;
} else if (mode == FIRSTBOOT_HEADLESS) {
log_debug("Found systemd.firstboot=headless kernel command line argument, skipping interactive prompts but keeping non-interactive auto-configuration.");
arg_headless = true;
}
}
r = mac_init();
if (r < 0)
return r;
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 |
DISSECT_IMAGE_ALLOW_USERSPACE_VERITY,
&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));
}
r = mac_label_context_new(arg_root, &arg_label_context);
if (r < 0)
return log_error_errno(r, "Failed to initialize label context for root '%s': %m", arg_root);
LOG_SET_PREFIX(arg_image ?: arg_root);
DEFER_VOID_CALL(end_marker);
DEFER_VOID_CALL(chrome_hide);
/* We check these conditions here instead of in parse_argv() so that we can take the root directory
* into account. */
if (arg_keymap && !keymap_is_ok(arg_keymap, FD_TO_PTR(rfd)))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Keymap %s is not installed.", arg_keymap);
if (arg_locale && !locale_is_ok(arg_locale, FD_TO_PTR(rfd)))
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale);
if (arg_locale_messages && !locale_is_ok(arg_locale_messages, FD_TO_PTR(rfd)))
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;
_cleanup_(sd_varlink_flush_close_unrefp) sd_varlink *mute_console_link = NULL;
r = process_locale(rfd, &mute_console_link);
if (r < 0)
return r;
if (r > 0 && !offline)
(void) reload_system_manager(&bus);
r = process_keymap(rfd, &mute_console_link);
if (r < 0)
return r;
if (r > 0 && !offline)
(void) reload_vconsole(&bus);
r = process_timezone(rfd, &mute_console_link);
if (r < 0)
return r;
r = process_hostname(rfd, &mute_console_link);
if (r < 0)
return r;
r = process_root_account(rfd, &mute_console_link);
if (r < 0)
return r;
r = process_kernel_cmdline(rfd);
if (r < 0)
return r;
r = process_machine_id(rfd);
if (r < 0)
return r;
r = process_machine_tags(rfd);
if (r < 0)
return r;
return 0;
}
DEFINE_MAIN_FUNCTION(run);
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