1344 lines
47 KiB
C
1344 lines
47 KiB
C
/* SPDX-License-Identifier: LGPL-2.1+ */
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#include <fcntl.h>
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#include <getopt.h>
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#include <linux/loop.h>
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#include <unistd.h>
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#include "sd-id128.h"
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#include "alloc-util.h"
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#include "ask-password-api.h"
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#include "copy.h"
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#include "dissect-image.h"
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#include "env-file.h"
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#include "fd-util.h"
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#include "fileio.h"
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#include "fs-util.h"
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#include "hostname-util.h"
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#include "kbd-util.h"
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#include "libcrypt-util.h"
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#include "locale-util.h"
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#include "main-func.h"
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#include "memory-util.h"
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#include "mkdir.h"
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#include "mount-util.h"
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#include "os-util.h"
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#include "parse-util.h"
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#include "path-util.h"
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#include "pretty-print.h"
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#include "proc-cmdline.h"
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#include "pwquality-util.h"
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#include "random-util.h"
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#include "string-util.h"
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#include "strv.h"
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#include "terminal-util.h"
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#include "time-util.h"
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#include "tmpfile-util-label.h"
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#include "tmpfile-util.h"
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#include "umask-util.h"
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#include "user-util.h"
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static char *arg_root = NULL;
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static char *arg_image = NULL;
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static char *arg_locale = NULL; /* $LANG */
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static char *arg_keymap = NULL;
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static char *arg_locale_messages = NULL; /* $LC_MESSAGES */
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static char *arg_timezone = NULL;
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static char *arg_hostname = NULL;
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static sd_id128_t arg_machine_id = {};
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static char *arg_root_password = NULL;
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static char *arg_root_shell = NULL;
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static char *arg_kernel_cmdline = NULL;
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static bool arg_prompt_locale = false;
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static bool arg_prompt_keymap = false;
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static bool arg_prompt_timezone = false;
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static bool arg_prompt_hostname = false;
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static bool arg_prompt_root_password = false;
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static bool arg_prompt_root_shell = false;
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static bool arg_copy_locale = false;
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static bool arg_copy_keymap = false;
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static bool arg_copy_timezone = false;
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static bool arg_copy_root_password = false;
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static bool arg_copy_root_shell = false;
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static bool arg_force = false;
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static bool arg_delete_root_password = false;
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static bool arg_root_password_is_hashed = false;
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static bool arg_welcome = true;
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STATIC_DESTRUCTOR_REGISTER(arg_root, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_image, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_locale, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_locale_messages, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_keymap, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_timezone, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_hostname, freep);
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STATIC_DESTRUCTOR_REGISTER(arg_root_password, erase_and_freep);
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static bool press_any_key(void) {
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char k = 0;
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bool need_nl = true;
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printf("-- Press any key to proceed --");
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fflush(stdout);
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(void) read_one_char(stdin, &k, USEC_INFINITY, &need_nl);
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if (need_nl)
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putchar('\n');
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return k != 'q';
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}
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static void print_welcome(void) {
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_cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL;
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static bool done = false;
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const char *pn;
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int r;
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if (!arg_welcome)
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return;
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if (done)
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return;
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r = parse_os_release(
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arg_root,
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"PRETTY_NAME", &pretty_name,
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"ANSI_COLOR", &ansi_color,
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NULL);
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if (r < 0)
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log_full_errno(r == -ENOENT ? LOG_DEBUG : LOG_WARNING, r,
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"Failed to read os-release file, ignoring: %m");
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pn = isempty(pretty_name) ? "Linux" : pretty_name;
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if (colors_enabled())
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printf("\nWelcome to your new installation of \x1B[%sm%s\x1B[0m!\n", ansi_color, pn);
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else
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printf("\nWelcome to your new installation of %s!\n", pn);
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printf("\nPlease configure your system!\n\n");
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press_any_key();
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done = true;
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}
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static int show_menu(char **x, unsigned n_columns, unsigned width, unsigned percentage) {
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unsigned break_lines, break_modulo;
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size_t n, per_column, i, j;
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assert(n_columns > 0);
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n = strv_length(x);
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per_column = DIV_ROUND_UP(n, n_columns);
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break_lines = lines();
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if (break_lines > 2)
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break_lines--;
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/* The first page gets two extra lines, since we want to show
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* a title */
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break_modulo = break_lines;
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if (break_modulo > 3)
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break_modulo -= 3;
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for (i = 0; i < per_column; i++) {
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for (j = 0; j < n_columns; j ++) {
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_cleanup_free_ char *e = NULL;
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if (j * per_column + i >= n)
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break;
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e = ellipsize(x[j * per_column + i], width, percentage);
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if (!e)
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return log_oom();
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printf("%4zu) %-*s", j * per_column + i + 1, width, e);
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}
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putchar('\n');
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/* on the first screen we reserve 2 extra lines for the title */
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if (i % break_lines == break_modulo) {
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if (!press_any_key())
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return 0;
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}
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}
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return 0;
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}
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static int prompt_loop(const char *text, char **l, unsigned percentage, bool (*is_valid)(const char *name), char **ret) {
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int r;
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assert(text);
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assert(is_valid);
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assert(ret);
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for (;;) {
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_cleanup_free_ char *p = NULL;
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unsigned u;
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r = ask_string(&p, "%s %s (empty to skip, \"list\" to list options): ",
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special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), text);
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if (r < 0)
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return log_error_errno(r, "Failed to query user: %m");
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if (isempty(p)) {
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log_warning("No data entered, skipping.");
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return 0;
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}
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if (streq(p, "list")) {
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r = show_menu(l, 3, 22, percentage);
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if (r < 0)
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return r;
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putchar('\n');
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continue;
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};
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r = safe_atou(p, &u);
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if (r >= 0) {
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if (u <= 0 || u > strv_length(l)) {
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log_error("Specified entry number out of range.");
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continue;
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}
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log_info("Selected '%s'.", l[u-1]);
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if (free_and_strdup(ret, l[u-1]) < 0)
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return log_oom();
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return 0;
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}
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if (!is_valid(p)) {
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log_error("Entered data invalid.");
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continue;
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}
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return free_and_replace(*ret, p);
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}
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}
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static bool locale_is_ok(const char *name) {
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if (arg_root)
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return locale_is_valid(name);
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return locale_is_installed(name) > 0;
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}
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static int prompt_locale(void) {
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_cleanup_strv_free_ char **locales = NULL;
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int r;
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if (arg_locale || arg_locale_messages)
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return 0;
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if (!arg_prompt_locale)
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return 0;
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r = get_locales(&locales);
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if (r < 0)
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return log_error_errno(r, "Cannot query locales list: %m");
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if (strv_isempty(locales))
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log_debug("No locales found, skipping locale selection.");
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else if (strv_length(locales) == 1) {
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if (streq(locales[0], SYSTEMD_DEFAULT_LOCALE))
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log_debug("Only installed locale is default locale anyway, not setting locale explicitly.");
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else {
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log_debug("Only a single locale available (%s), selecting it as default.", locales[0]);
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arg_locale = strdup(locales[0]);
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if (!arg_locale)
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return log_oom();
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/* Not setting arg_locale_message here, since it defaults to LANG anyway */
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}
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} else {
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print_welcome();
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r = prompt_loop("Please enter system locale name or number",
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locales, 60, locale_is_ok, &arg_locale);
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if (r < 0)
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return r;
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if (isempty(arg_locale))
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return 0;
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r = prompt_loop("Please enter system message locale name or number",
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locales, 60, locale_is_ok, &arg_locale_messages);
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if (r < 0)
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return r;
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/* Suppress the messages setting if it's the same as the main locale anyway */
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if (streq_ptr(arg_locale, arg_locale_messages))
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arg_locale_messages = mfree(arg_locale_messages);
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}
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return 0;
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}
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static int process_locale(void) {
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const char *etc_localeconf;
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char* locales[3];
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unsigned i = 0;
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int r;
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etc_localeconf = prefix_roota(arg_root, "/etc/locale.conf");
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if (laccess(etc_localeconf, F_OK) >= 0 && !arg_force)
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return 0;
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if (arg_copy_locale && arg_root) {
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(void) mkdir_parents(etc_localeconf, 0755);
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r = copy_file("/etc/locale.conf", etc_localeconf, 0, 0644, 0, 0, COPY_REFLINK);
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if (r != -ENOENT) {
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if (r < 0)
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return log_error_errno(r, "Failed to copy %s: %m", etc_localeconf);
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log_info("%s copied.", etc_localeconf);
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return 0;
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}
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}
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r = prompt_locale();
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if (r < 0)
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return r;
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if (!isempty(arg_locale))
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locales[i++] = strjoina("LANG=", arg_locale);
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if (!isempty(arg_locale_messages) && !streq(arg_locale_messages, arg_locale))
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locales[i++] = strjoina("LC_MESSAGES=", arg_locale_messages);
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if (i == 0)
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return 0;
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locales[i] = NULL;
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(void) mkdir_parents(etc_localeconf, 0755);
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r = write_env_file(etc_localeconf, locales);
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if (r < 0)
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return log_error_errno(r, "Failed to write %s: %m", etc_localeconf);
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log_info("%s written.", etc_localeconf);
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return 0;
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}
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static int prompt_keymap(void) {
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_cleanup_strv_free_ char **kmaps = NULL;
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int r;
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if (arg_keymap)
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return 0;
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if (!arg_prompt_keymap)
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return 0;
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r = get_keymaps(&kmaps);
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if (r == -ENOENT) /* no keymaps installed */
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return r;
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if (r < 0)
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return log_error_errno(r, "Failed to read keymaps: %m");
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print_welcome();
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return prompt_loop("Please enter system keymap name or number",
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kmaps, 60, keymap_is_valid, &arg_keymap);
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}
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static int process_keymap(void) {
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const char *etc_vconsoleconf;
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char **keymap;
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int r;
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etc_vconsoleconf = prefix_roota(arg_root, "/etc/vconsole.conf");
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if (laccess(etc_vconsoleconf, F_OK) >= 0 && !arg_force)
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return 0;
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if (arg_copy_keymap && arg_root) {
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(void) mkdir_parents(etc_vconsoleconf, 0755);
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r = copy_file("/etc/vconsole.conf", etc_vconsoleconf, 0, 0644, 0, 0, COPY_REFLINK);
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if (r != -ENOENT) {
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if (r < 0)
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return log_error_errno(r, "Failed to copy %s: %m", etc_vconsoleconf);
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log_info("%s copied.", etc_vconsoleconf);
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return 0;
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}
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}
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r = prompt_keymap();
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if (r == -ENOENT)
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return 0; /* don't fail if no keymaps are installed */
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if (r < 0)
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return r;
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if (isempty(arg_keymap))
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return 0;
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keymap = STRV_MAKE(strjoina("KEYMAP=", arg_keymap));
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r = mkdir_parents(etc_vconsoleconf, 0755);
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if (r < 0)
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return log_error_errno(r, "Failed to create the parent directory of %s: %m", etc_vconsoleconf);
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r = write_env_file(etc_vconsoleconf, keymap);
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if (r < 0)
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return log_error_errno(r, "Failed to write %s: %m", etc_vconsoleconf);
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log_info("%s written.", etc_vconsoleconf);
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return 0;
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}
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static bool timezone_is_valid_log_error(const char *name) {
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return timezone_is_valid(name, LOG_ERR);
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}
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static int prompt_timezone(void) {
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_cleanup_strv_free_ char **zones = NULL;
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int r;
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if (arg_timezone)
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return 0;
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if (!arg_prompt_timezone)
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return 0;
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r = get_timezones(&zones);
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if (r < 0)
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return log_error_errno(r, "Cannot query timezone list: %m");
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print_welcome();
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r = prompt_loop("Please enter timezone name or number",
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zones, 30, timezone_is_valid_log_error, &arg_timezone);
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if (r < 0)
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return r;
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return 0;
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}
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static int process_timezone(void) {
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const char *etc_localtime, *e;
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int r;
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etc_localtime = prefix_roota(arg_root, "/etc/localtime");
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if (laccess(etc_localtime, F_OK) >= 0 && !arg_force)
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return 0;
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if (arg_copy_timezone && arg_root) {
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_cleanup_free_ char *p = NULL;
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r = readlink_malloc("/etc/localtime", &p);
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if (r != -ENOENT) {
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if (r < 0)
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return log_error_errno(r, "Failed to read host timezone: %m");
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(void) mkdir_parents(etc_localtime, 0755);
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if (symlink(p, etc_localtime) < 0)
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return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
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log_info("%s copied.", etc_localtime);
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return 0;
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}
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}
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r = prompt_timezone();
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if (r < 0)
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return r;
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if (isempty(arg_timezone))
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return 0;
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e = strjoina("../usr/share/zoneinfo/", arg_timezone);
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(void) mkdir_parents(etc_localtime, 0755);
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if (symlink(e, etc_localtime) < 0)
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return log_error_errno(errno, "Failed to create %s symlink: %m", etc_localtime);
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log_info("%s written", etc_localtime);
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return 0;
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}
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static int prompt_hostname(void) {
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int r;
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if (arg_hostname)
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return 0;
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if (!arg_prompt_hostname)
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return 0;
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print_welcome();
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putchar('\n');
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for (;;) {
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_cleanup_free_ char *h = NULL;
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r = ask_string(&h, "%s Please enter hostname for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
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if (r < 0)
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return log_error_errno(r, "Failed to query hostname: %m");
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if (isempty(h)) {
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log_warning("No hostname entered, skipping.");
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break;
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}
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if (!hostname_is_valid(h, true)) {
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log_error("Specified hostname invalid.");
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continue;
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}
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/* Get rid of the trailing dot that we allow, but don't want to see */
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arg_hostname = hostname_cleanup(h);
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h = NULL;
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break;
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}
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return 0;
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}
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static int process_hostname(void) {
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const char *etc_hostname;
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int r;
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etc_hostname = prefix_roota(arg_root, "/etc/hostname");
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if (laccess(etc_hostname, F_OK) >= 0 && !arg_force)
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return 0;
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r = prompt_hostname();
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if (r < 0)
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return r;
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if (isempty(arg_hostname))
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return 0;
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r = write_string_file(etc_hostname, arg_hostname,
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WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
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(arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
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if (r < 0)
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return log_error_errno(r, "Failed to write %s: %m", etc_hostname);
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log_info("%s written.", etc_hostname);
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return 0;
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}
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static int process_machine_id(void) {
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const char *etc_machine_id;
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char id[SD_ID128_STRING_MAX];
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int r;
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etc_machine_id = prefix_roota(arg_root, "/etc/machine-id");
|
|
if (laccess(etc_machine_id, F_OK) >= 0 && !arg_force)
|
|
return 0;
|
|
|
|
if (sd_id128_is_null(arg_machine_id))
|
|
return 0;
|
|
|
|
r = write_string_file(etc_machine_id, sd_id128_to_string(arg_machine_id, id),
|
|
WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
|
|
(arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to write machine id: %m");
|
|
|
|
log_info("%s written.", etc_machine_id);
|
|
return 0;
|
|
}
|
|
|
|
static int prompt_root_password(void) {
|
|
const char *msg1, *msg2;
|
|
int r;
|
|
|
|
if (arg_root_password)
|
|
return 0;
|
|
|
|
if (!arg_prompt_root_password)
|
|
return 0;
|
|
|
|
print_welcome();
|
|
putchar('\n');
|
|
|
|
msg1 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter a new root password (empty to skip):");
|
|
msg2 = strjoina(special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET), " Please enter new root password again:");
|
|
|
|
suggest_passwords();
|
|
|
|
for (;;) {
|
|
_cleanup_strv_free_erase_ char **a = NULL, **b = NULL;
|
|
_cleanup_free_ char *error = NULL;
|
|
|
|
r = ask_password_tty(-1, msg1, NULL, 0, 0, NULL, &a);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to query root password: %m");
|
|
if (strv_length(a) != 1)
|
|
return log_error_errno(SYNTHETIC_ERRNO(EIO),
|
|
"Received multiple passwords, where we expected one.");
|
|
|
|
if (isempty(*a)) {
|
|
log_warning("No password entered, skipping.");
|
|
break;
|
|
}
|
|
|
|
r = quality_check_password(*a, "root", &error);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to check quality of password: %m");
|
|
if (r == 0)
|
|
log_warning("Password is weak, accepting anyway: %s", error);
|
|
|
|
r = ask_password_tty(-1, msg2, NULL, 0, 0, NULL, &b);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to query root password: %m");
|
|
if (strv_length(b) != 1)
|
|
return log_error_errno(SYNTHETIC_ERRNO(EIO),
|
|
"Received multiple passwords, where we expected one.");
|
|
|
|
if (!streq(*a, *b)) {
|
|
log_error("Entered passwords did not match, please try again.");
|
|
continue;
|
|
}
|
|
|
|
arg_root_password = TAKE_PTR(*a);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int find_shell(const char *path, const char *root) {
|
|
int r;
|
|
|
|
assert(path);
|
|
|
|
if (!valid_shell(path))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "%s is not a valid shell", path);
|
|
|
|
r = chase_symlinks(path, root, CHASE_PREFIX_ROOT, NULL, NULL);
|
|
if (r < 0) {
|
|
const char *p;
|
|
p = prefix_roota(root, path);
|
|
return log_error_errno(r, "Failed to resolve shell %s: %m", p);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int prompt_root_shell(void) {
|
|
int r;
|
|
|
|
if (arg_root_shell || !arg_prompt_root_shell)
|
|
return 0;
|
|
|
|
print_welcome();
|
|
putchar('\n');
|
|
|
|
for (;;) {
|
|
_cleanup_free_ char *s = NULL;
|
|
|
|
r = ask_string(&s, "%s Please enter root shell for new system (empty to skip): ", special_glyph(SPECIAL_GLYPH_TRIANGULAR_BULLET));
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to query root shell: %m");
|
|
|
|
if (isempty(s)) {
|
|
log_warning("No shell entered, skipping.");
|
|
break;
|
|
}
|
|
|
|
r = find_shell(s, arg_root);
|
|
if (r < 0)
|
|
continue;
|
|
|
|
arg_root_shell = TAKE_PTR(s);
|
|
break;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int write_root_passwd(const char *passwd_path, const char *password, const char *shell) {
|
|
_cleanup_fclose_ FILE *original = NULL, *passwd = NULL;
|
|
_cleanup_(unlink_and_freep) char *passwd_tmp = NULL;
|
|
int r;
|
|
|
|
assert(password);
|
|
|
|
r = fopen_temporary_label("/etc/passwd", passwd_path, &passwd, &passwd_tmp);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
original = fopen(passwd_path, "re");
|
|
if (original) {
|
|
struct passwd *i;
|
|
|
|
r = sync_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 ?: "/bin/sh"),
|
|
};
|
|
|
|
if (errno != ENOENT)
|
|
return -errno;
|
|
|
|
r = fchmod(fileno(passwd), 0644);
|
|
if (r < 0)
|
|
return -errno;
|
|
|
|
r = putpwent_sane(&root, passwd);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
r = fflush_sync_and_check(passwd);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = rename_and_apply_smack_floor_label(passwd_tmp, passwd_path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int write_root_shadow(const char *shadow_path, const char *hashed_password) {
|
|
_cleanup_fclose_ FILE *original = NULL, *shadow = NULL;
|
|
_cleanup_(unlink_and_freep) char *shadow_tmp = NULL;
|
|
int r;
|
|
|
|
assert(hashed_password);
|
|
|
|
r = fopen_temporary_label("/etc/shadow", shadow_path, &shadow, &shadow_tmp);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
original = fopen(shadow_path, "re");
|
|
if (original) {
|
|
struct spwd *i;
|
|
|
|
r = sync_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 = (unsigned long) -1, /* this appears to be what everybody does ... */
|
|
};
|
|
|
|
if (errno != ENOENT)
|
|
return -errno;
|
|
|
|
r = fchmod(fileno(shadow), 0000);
|
|
if (r < 0)
|
|
return -errno;
|
|
|
|
r = putspent_sane(&root, shadow);
|
|
if (r < 0)
|
|
return r;
|
|
}
|
|
|
|
r = fflush_sync_and_check(shadow);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = rename_and_apply_smack_floor_label(shadow_tmp, shadow_path);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int process_root_args(void) {
|
|
_cleanup_close_ int lock = -1;
|
|
struct crypt_data cd = {};
|
|
const char *password, *hashed_password;
|
|
const char *etc_passwd, *etc_shadow;
|
|
int r;
|
|
|
|
etc_passwd = prefix_roota(arg_root, "/etc/passwd");
|
|
etc_shadow = prefix_roota(arg_root, "/etc/shadow");
|
|
|
|
/* We only mess with passwd and shadow if both do not exist or --force is specified. These files are
|
|
* tightly coupled and hence we make sure we have permission from the user to create/modify both
|
|
* files. */
|
|
if ((laccess(etc_passwd, F_OK) >= 0 || laccess(etc_shadow, F_OK) >= 0) && !arg_force)
|
|
return 0;
|
|
|
|
(void) mkdir_parents(etc_passwd, 0755);
|
|
|
|
lock = take_etc_passwd_lock(arg_root);
|
|
if (lock < 0)
|
|
return log_error_errno(lock, "Failed to take a lock on %s: %m", etc_passwd);
|
|
|
|
if (arg_copy_root_shell && arg_root) {
|
|
struct passwd *p;
|
|
|
|
errno = 0;
|
|
p = getpwnam("root");
|
|
if (!p)
|
|
return log_error_errno(errno_or_else(EIO), "Failed to find passwd entry for root: %m");
|
|
|
|
r = free_and_strdup(&arg_root_shell, p->pw_shell);
|
|
if (r < 0)
|
|
return log_oom();
|
|
}
|
|
|
|
r = prompt_root_shell();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (arg_copy_root_password && arg_root) {
|
|
struct spwd *p;
|
|
|
|
errno = 0;
|
|
p = getspnam("root");
|
|
if (!p)
|
|
return log_error_errno(errno_or_else(EIO), "Failed to find shadow entry for root: %m");
|
|
|
|
r = free_and_strdup(&arg_root_password, p->sp_pwdp);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
arg_root_password_is_hashed = true;
|
|
}
|
|
|
|
r = prompt_root_password();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
if (arg_root_password && arg_root_password_is_hashed) {
|
|
password = "x";
|
|
hashed_password = arg_root_password;
|
|
} else if (arg_root_password) {
|
|
_cleanup_free_ char *salt = NULL;
|
|
/* hashed_password points inside cd after crypt_r returns so cd has function scope. */
|
|
|
|
password = "x";
|
|
|
|
r = make_salt(&salt);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to get salt: %m");
|
|
|
|
errno = 0;
|
|
hashed_password = crypt_r(arg_root_password, salt, &cd);
|
|
if (!hashed_password)
|
|
return log_error_errno(errno == 0 ? SYNTHETIC_ERRNO(EINVAL) : errno,
|
|
"Failed to encrypt password: %m");
|
|
} else if (arg_delete_root_password)
|
|
password = hashed_password = "";
|
|
else
|
|
password = hashed_password = "!";
|
|
|
|
r = write_root_passwd(etc_passwd, password, arg_root_shell);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to write %s: %m", etc_passwd);
|
|
|
|
log_info("%s written", etc_passwd);
|
|
|
|
r = write_root_shadow(etc_shadow, hashed_password);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
|
|
|
|
log_info("%s written.", etc_shadow);
|
|
return 0;
|
|
}
|
|
|
|
static int process_kernel_cmdline(void) {
|
|
const char *etc_kernel_cmdline;
|
|
int r;
|
|
|
|
etc_kernel_cmdline = prefix_roota(arg_root, "/etc/kernel/cmdline");
|
|
if (laccess(etc_kernel_cmdline, F_OK) >= 0 && !arg_force)
|
|
return 0;
|
|
|
|
if (!arg_kernel_cmdline)
|
|
return 0;
|
|
|
|
r = write_string_file(etc_kernel_cmdline, arg_kernel_cmdline,
|
|
WRITE_STRING_FILE_CREATE | WRITE_STRING_FILE_SYNC | WRITE_STRING_FILE_MKDIR_0755 |
|
|
(arg_force ? WRITE_STRING_FILE_ATOMIC : 0));
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to write %s: %m", etc_kernel_cmdline);
|
|
|
|
log_info("%s written.", etc_kernel_cmdline);
|
|
return 0;
|
|
}
|
|
|
|
static int help(void) {
|
|
_cleanup_free_ char *link = NULL;
|
|
int r;
|
|
|
|
r = terminal_urlify_man("systemd-firstboot", "1", &link);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
printf("%s [OPTIONS...]\n\n"
|
|
"Configures basic settings of the system.\n\n"
|
|
" -h --help Show this help\n"
|
|
" --version Show package version\n"
|
|
" --root=PATH Operate on an alternate filesystem root\n"
|
|
" --image=PATH Operate on an alternate filesystem image\n"
|
|
" --locale=LOCALE Set primary locale (LANG=)\n"
|
|
" --locale-messages=LOCALE Set message locale (LC_MESSAGES=)\n"
|
|
" --keymap=KEYMAP Set keymap\n"
|
|
" --timezone=TIMEZONE Set timezone\n"
|
|
" --hostname=NAME Set hostname\n"
|
|
" --machine-ID=ID Set machine ID\n"
|
|
" --root-password=PASSWORD Set root password from plaintext password\n"
|
|
" --root-password-file=FILE Set root password from file\n"
|
|
" --root-password-hashed=HASHED_PASSWORD Set root password from hashed password\n"
|
|
" --root-shell=SHELL Set root shell\n"
|
|
" --prompt-locale Prompt the user for locale settings\n"
|
|
" --prompt-keymap Prompt the user for keymap settings\n"
|
|
" --prompt-timezone Prompt the user for timezone\n"
|
|
" --prompt-hostname Prompt the user for hostname\n"
|
|
" --prompt-root-password Prompt the user for root password\n"
|
|
" --prompt-root-shell Prompt the user for root shell\n"
|
|
" --prompt Prompt for all of the above\n"
|
|
" --copy-locale Copy locale from host\n"
|
|
" --copy-keymap Copy keymap from host\n"
|
|
" --copy-timezone Copy timezone from host\n"
|
|
" --copy-root-password Copy root password from host\n"
|
|
" --copy-root-shell Copy root shell from host\n"
|
|
" --copy Copy locale, keymap, timezone, root password\n"
|
|
" --setup-machine-id Generate a new random machine ID\n"
|
|
" --force Overwrite existing files\n"
|
|
" --delete-root-password Delete root password\n"
|
|
" --welcome=no Disable the welcome text\n"
|
|
"\nSee the %s for details.\n"
|
|
, program_invocation_short_name
|
|
, link
|
|
);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int parse_argv(int argc, char *argv[]) {
|
|
|
|
enum {
|
|
ARG_VERSION = 0x100,
|
|
ARG_ROOT,
|
|
ARG_IMAGE,
|
|
ARG_LOCALE,
|
|
ARG_LOCALE_MESSAGES,
|
|
ARG_KEYMAP,
|
|
ARG_TIMEZONE,
|
|
ARG_HOSTNAME,
|
|
ARG_MACHINE_ID,
|
|
ARG_ROOT_PASSWORD,
|
|
ARG_ROOT_PASSWORD_FILE,
|
|
ARG_ROOT_PASSWORD_HASHED,
|
|
ARG_ROOT_SHELL,
|
|
ARG_KERNEL_COMMAND_LINE,
|
|
ARG_PROMPT,
|
|
ARG_PROMPT_LOCALE,
|
|
ARG_PROMPT_KEYMAP,
|
|
ARG_PROMPT_TIMEZONE,
|
|
ARG_PROMPT_HOSTNAME,
|
|
ARG_PROMPT_ROOT_PASSWORD,
|
|
ARG_PROMPT_ROOT_SHELL,
|
|
ARG_COPY,
|
|
ARG_COPY_LOCALE,
|
|
ARG_COPY_KEYMAP,
|
|
ARG_COPY_TIMEZONE,
|
|
ARG_COPY_ROOT_PASSWORD,
|
|
ARG_COPY_ROOT_SHELL,
|
|
ARG_SETUP_MACHINE_ID,
|
|
ARG_FORCE,
|
|
ARG_DELETE_ROOT_PASSWORD,
|
|
ARG_WELCOME,
|
|
};
|
|
|
|
static const struct option options[] = {
|
|
{ "help", no_argument, NULL, 'h' },
|
|
{ "version", no_argument, NULL, ARG_VERSION },
|
|
{ "root", required_argument, NULL, ARG_ROOT },
|
|
{ "image", required_argument, NULL, ARG_IMAGE },
|
|
{ "locale", required_argument, NULL, ARG_LOCALE },
|
|
{ "locale-messages", required_argument, NULL, ARG_LOCALE_MESSAGES },
|
|
{ "keymap", required_argument, NULL, ARG_KEYMAP },
|
|
{ "timezone", required_argument, NULL, ARG_TIMEZONE },
|
|
{ "hostname", required_argument, NULL, ARG_HOSTNAME },
|
|
{ "machine-id", required_argument, NULL, ARG_MACHINE_ID },
|
|
{ "root-password", required_argument, NULL, ARG_ROOT_PASSWORD },
|
|
{ "root-password-file", required_argument, NULL, ARG_ROOT_PASSWORD_FILE },
|
|
{ "root-password-hashed", required_argument, NULL, ARG_ROOT_PASSWORD_HASHED },
|
|
{ "root-shell", required_argument, NULL, ARG_ROOT_SHELL },
|
|
{ "kernel-command-line", required_argument, NULL, ARG_KERNEL_COMMAND_LINE },
|
|
{ "prompt", no_argument, NULL, ARG_PROMPT },
|
|
{ "prompt-locale", no_argument, NULL, ARG_PROMPT_LOCALE },
|
|
{ "prompt-keymap", no_argument, NULL, ARG_PROMPT_KEYMAP },
|
|
{ "prompt-timezone", no_argument, NULL, ARG_PROMPT_TIMEZONE },
|
|
{ "prompt-hostname", no_argument, NULL, ARG_PROMPT_HOSTNAME },
|
|
{ "prompt-root-password", no_argument, NULL, ARG_PROMPT_ROOT_PASSWORD },
|
|
{ "prompt-root-shell", no_argument, NULL, ARG_PROMPT_ROOT_SHELL },
|
|
{ "copy", no_argument, NULL, ARG_COPY },
|
|
{ "copy-locale", no_argument, NULL, ARG_COPY_LOCALE },
|
|
{ "copy-keymap", no_argument, NULL, ARG_COPY_KEYMAP },
|
|
{ "copy-timezone", no_argument, NULL, ARG_COPY_TIMEZONE },
|
|
{ "copy-root-password", no_argument, NULL, ARG_COPY_ROOT_PASSWORD },
|
|
{ "copy-root-shell", no_argument, NULL, ARG_COPY_ROOT_SHELL },
|
|
{ "setup-machine-id", no_argument, NULL, ARG_SETUP_MACHINE_ID },
|
|
{ "force", no_argument, NULL, ARG_FORCE },
|
|
{ "delete-root-password", no_argument, NULL, ARG_DELETE_ROOT_PASSWORD },
|
|
{ "welcome", required_argument, NULL, ARG_WELCOME },
|
|
{}
|
|
};
|
|
|
|
int r, c;
|
|
|
|
assert(argc >= 0);
|
|
assert(argv);
|
|
|
|
while ((c = getopt_long(argc, argv, "h", options, NULL)) >= 0)
|
|
|
|
switch (c) {
|
|
|
|
case 'h':
|
|
return help();
|
|
|
|
case ARG_VERSION:
|
|
return version();
|
|
|
|
case ARG_ROOT:
|
|
r = parse_path_argument_and_warn(optarg, true, &arg_root);
|
|
if (r < 0)
|
|
return r;
|
|
break;
|
|
|
|
case ARG_IMAGE:
|
|
r = parse_path_argument_and_warn(optarg, false, &arg_image);
|
|
if (r < 0)
|
|
return r;
|
|
break;
|
|
|
|
case ARG_LOCALE:
|
|
r = free_and_strdup(&arg_locale, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_LOCALE_MESSAGES:
|
|
r = free_and_strdup(&arg_locale_messages, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_KEYMAP:
|
|
if (!keymap_is_valid(optarg))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Keymap %s is not valid.", optarg);
|
|
|
|
r = free_and_strdup(&arg_keymap, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_TIMEZONE:
|
|
if (!timezone_is_valid(optarg, LOG_ERR))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Timezone %s is not valid.", optarg);
|
|
|
|
r = free_and_strdup(&arg_timezone, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_ROOT_PASSWORD:
|
|
r = free_and_strdup(&arg_root_password, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
arg_root_password_is_hashed = false;
|
|
break;
|
|
|
|
case ARG_ROOT_PASSWORD_FILE:
|
|
arg_root_password = mfree(arg_root_password);
|
|
|
|
r = read_one_line_file(optarg, &arg_root_password);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to read %s: %m", optarg);
|
|
|
|
arg_root_password_is_hashed = false;
|
|
break;
|
|
|
|
case ARG_ROOT_PASSWORD_HASHED:
|
|
r = free_and_strdup(&arg_root_password, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
arg_root_password_is_hashed = true;
|
|
break;
|
|
|
|
case ARG_ROOT_SHELL:
|
|
r = find_shell(optarg, arg_root);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = free_and_strdup(&arg_root_shell, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_HOSTNAME:
|
|
if (!hostname_is_valid(optarg, true))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Host name %s is not valid.", optarg);
|
|
|
|
hostname_cleanup(optarg);
|
|
r = free_and_strdup(&arg_hostname, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_MACHINE_ID:
|
|
if (sd_id128_from_string(optarg, &arg_machine_id) < 0)
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"Failed to parse machine id %s.", optarg);
|
|
|
|
break;
|
|
|
|
case ARG_KERNEL_COMMAND_LINE:
|
|
r = free_and_strdup(&arg_kernel_cmdline, optarg);
|
|
if (r < 0)
|
|
return log_oom();
|
|
|
|
break;
|
|
|
|
case ARG_PROMPT:
|
|
arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname =
|
|
arg_prompt_root_password = arg_prompt_root_shell = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_LOCALE:
|
|
arg_prompt_locale = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_KEYMAP:
|
|
arg_prompt_keymap = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_TIMEZONE:
|
|
arg_prompt_timezone = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_HOSTNAME:
|
|
arg_prompt_hostname = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_ROOT_PASSWORD:
|
|
arg_prompt_root_password = true;
|
|
break;
|
|
|
|
case ARG_PROMPT_ROOT_SHELL:
|
|
arg_prompt_root_shell = true;
|
|
break;
|
|
|
|
case ARG_COPY:
|
|
arg_copy_locale = arg_copy_keymap = arg_copy_timezone = arg_copy_root_password =
|
|
arg_copy_root_shell = true;
|
|
break;
|
|
|
|
case ARG_COPY_LOCALE:
|
|
arg_copy_locale = true;
|
|
break;
|
|
|
|
case ARG_COPY_KEYMAP:
|
|
arg_copy_keymap = true;
|
|
break;
|
|
|
|
case ARG_COPY_TIMEZONE:
|
|
arg_copy_timezone = true;
|
|
break;
|
|
|
|
case ARG_COPY_ROOT_PASSWORD:
|
|
arg_copy_root_password = true;
|
|
break;
|
|
|
|
case ARG_COPY_ROOT_SHELL:
|
|
arg_copy_root_shell = true;
|
|
break;
|
|
|
|
case ARG_SETUP_MACHINE_ID:
|
|
r = sd_id128_randomize(&arg_machine_id);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to generate randomized machine ID: %m");
|
|
|
|
break;
|
|
|
|
case ARG_FORCE:
|
|
arg_force = true;
|
|
break;
|
|
|
|
case ARG_DELETE_ROOT_PASSWORD:
|
|
arg_delete_root_password = true;
|
|
break;
|
|
|
|
case ARG_WELCOME:
|
|
r = parse_boolean(optarg);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse --welcome= argument: %s", optarg);
|
|
|
|
arg_welcome = r;
|
|
break;
|
|
|
|
case '?':
|
|
return -EINVAL;
|
|
|
|
default:
|
|
assert_not_reached("Unhandled option");
|
|
}
|
|
|
|
/* We check if the specified locale strings are valid down here, so that we can take --root= into
|
|
* account when looking for the locale files. */
|
|
|
|
if (arg_locale && !locale_is_ok(arg_locale))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale);
|
|
if (arg_locale_messages && !locale_is_ok(arg_locale_messages))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Locale %s is not installed.", arg_locale_messages);
|
|
|
|
if (arg_delete_root_password && (arg_copy_root_password || arg_root_password || arg_prompt_root_password))
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL),
|
|
"--delete-root-password cannot be combined with other root password options");
|
|
|
|
if (arg_image && arg_root)
|
|
return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Please specify either --root= or --image=, the combination of both is not supported.");
|
|
|
|
return 1;
|
|
}
|
|
|
|
static int run(int argc, char *argv[]) {
|
|
_cleanup_(loop_device_unrefp) LoopDevice *loop_device = NULL;
|
|
_cleanup_(decrypted_image_unrefp) DecryptedImage *decrypted_image = NULL;
|
|
_cleanup_(umount_and_rmdir_and_freep) char *unlink_dir = NULL;
|
|
int r;
|
|
|
|
r = parse_argv(argc, argv);
|
|
if (r <= 0)
|
|
return r;
|
|
|
|
log_setup_service();
|
|
|
|
umask(0022);
|
|
|
|
if (!arg_root && !arg_image) {
|
|
bool enabled;
|
|
|
|
/* If we are called without --root=/--image= let's honour the systemd.firstboot kernel
|
|
* command line option, because we are called to provision the host with basic settings (as
|
|
* opposed to some other file system tree/image) */
|
|
|
|
r = proc_cmdline_get_bool("systemd.firstboot", &enabled);
|
|
if (r < 0)
|
|
return log_error_errno(r, "Failed to parse systemd.firstboot= kernel command line argument, ignoring: %m");
|
|
if (r > 0 && !enabled)
|
|
return 0; /* disabled */
|
|
}
|
|
|
|
if (arg_image) {
|
|
assert(!arg_root);
|
|
|
|
r = mount_image_privately_interactively(
|
|
arg_image,
|
|
DISSECT_IMAGE_REQUIRE_ROOT|DISSECT_IMAGE_VALIDATE_OS|DISSECT_IMAGE_RELAX_VAR_CHECK|DISSECT_IMAGE_FSCK,
|
|
&unlink_dir,
|
|
&loop_device,
|
|
&decrypted_image);
|
|
if (r < 0)
|
|
return r;
|
|
|
|
arg_root = strdup(unlink_dir);
|
|
if (!arg_root)
|
|
return log_oom();
|
|
}
|
|
|
|
r = process_locale();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_keymap();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_timezone();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_hostname();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_machine_id();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_root_args();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
r = process_kernel_cmdline();
|
|
if (r < 0)
|
|
return r;
|
|
|
|
return 0;
|
|
}
|
|
|
|
DEFINE_MAIN_FUNCTION(run);
|