static char *arg_hostname = NULL;
static sd_id128_t arg_machine_id = {};
static char *arg_root_password = NULL;
+static char *arg_root_shell = NULL;
static char *arg_kernel_cmdline = NULL;
static bool arg_prompt_locale = false;
static bool arg_prompt_keymap = false;
static bool arg_prompt_timezone = false;
static bool arg_prompt_hostname = false;
static bool arg_prompt_root_password = false;
+static bool arg_prompt_root_shell = false;
static bool arg_copy_locale = false;
static bool arg_copy_keymap = false;
static bool arg_copy_timezone = false;
static bool arg_copy_root_password = false;
+static bool arg_copy_root_shell = false;
static bool arg_force = false;
static bool arg_delete_root_password = false;
static bool arg_root_password_is_hashed = false;
return 0;
}
-static int write_root_passwd(const char *passwd_path, const char *password) {
+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;
while ((r = fgetpwent_sane(original, &i)) > 0) {
- if (streq(i->pw_name, "root"))
+ 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)
.pw_gid = 0,
.pw_gecos = (char *) "Super User",
.pw_dir = (char *) "/root",
- .pw_shell = (char *) "/bin/sh",
+ .pw_shell = (char *) (shell ?: "/bin/sh"),
};
if (errno != ENOENT)
return -errno;
- r = fchmod(fileno(passwd), 0000);
+ r = fchmod(fileno(passwd), 0644);
if (r < 0)
return -errno;
_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;
return 0;
}
-static int process_root_password(void) {
+static int process_root_args(void) {
_cleanup_close_ int lock = -1;
struct crypt_data cd = {};
- const char *hashed_password;
- const char *etc_shadow;
+ const char *password, *hashed_password;
+ const char *etc_passwd, *etc_shadow;
int r;
+ etc_passwd = prefix_roota(arg_root, "/etc/passwd");
etc_shadow = prefix_roota(arg_root, "/etc/shadow");
- if (laccess(etc_shadow, F_OK) >= 0 && !arg_force)
+
+ /* 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_shadow, 0755);
+ (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: %m");
+ return log_error_errno(lock, "Failed to take a lock on %s: %m", etc_passwd);
- if (arg_delete_root_password) {
- const char *etc_passwd;
+ if (arg_copy_root_shell && arg_root) {
+ struct passwd *p;
- /* Mixing alloca() and other stuff that touches the stack in one expression is not portable. */
- etc_passwd = prefix_roota(arg_root, "/etc/passwd");
+ errno = 0;
+ p = getpwnam("root");
+ if (!p)
+ return log_error_errno(errno_or_else(EIO), "Failed to find passwd entry for root: %m");
- r = write_root_passwd(etc_passwd, "");
+ r = free_and_strdup(&arg_root_shell, p->pw_shell);
if (r < 0)
- return log_error_errno(r, "Failed to write %s: %m", etc_passwd);
-
- log_info("%s written", etc_passwd);
-
- return 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 || errno != ENOENT) {
- if (!p) {
- if (!errno)
- errno = EIO;
+ if (!p)
+ return log_error_errno(errno_or_else(EIO), "Failed to find shadow entry for root: %m");
- return log_error_errno(errno, "Failed to find shadow entry for root: %m");
- }
-
- r = write_root_shadow(etc_shadow, p->sp_pwdp);
- if (r < 0)
- return log_error_errno(r, "Failed to write %s: %m", etc_shadow);
+ r = free_and_strdup(&arg_root_password, p->sp_pwdp);
+ if (r < 0)
+ return log_oom();
- log_info("%s copied.", etc_shadow);
- return 0;
- }
+ arg_root_password_is_hashed = true;
}
r = prompt_root_password();
if (r < 0)
return r;
- if (!arg_root_password)
- return 0;
-
- if (arg_root_password_is_hashed)
+ if (arg_root_password && arg_root_password_is_hashed) {
+ password = "x";
hashed_password = arg_root_password;
- else {
+ } 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");
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)
" --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"
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_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,
{ "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-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 },
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),
break;
case ARG_PROMPT:
- arg_prompt_locale = arg_prompt_keymap = arg_prompt_timezone = arg_prompt_hostname = arg_prompt_root_password = true;
+ 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_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 = true;
+ 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_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)
if (r < 0)
return r;
- r = process_root_password();
+ r = process_root_args();
if (r < 0)
return r;
projects / thirdparty / systemd.git / blobdiff