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sulogin-shell: Start initrd.target on exit in the initrd

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sulogin is documented to continue booting up on exit. To do that
in the initrd, we need to start initrd.target and not default.target.
This commit is contained in:
Daan De Meyer 2023-04-21 13:01:24 +02:00 committed by Lennart Poettering
parent b676a94837
commit 750d9859c1
1 changed files with 13 additions and 11 deletions
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24
src/sulogin-shell/sulogin-shell.c
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@ -13,6 +13,7 @@
#include "bus-error.h"
#include "constants.h"
#include "env-util.h"
#include "initrd-util.h"
#include "log.h"
#include "main-func.h"
#include "process-util.h"
@ -43,12 +44,12 @@ static int reload_manager(sd_bus *bus) {
return 0;
}
static int default_target_is_inactive(sd_bus *bus) {
static int target_is_inactive(sd_bus *bus, const char *target) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_free_ char *path = NULL, *state = NULL;
int r;
path = unit_dbus_path_from_name(SPECIAL_DEFAULT_TARGET);
path = unit_dbus_path_from_name(target);
if (!path)
return log_oom();
@ -65,11 +66,11 @@ static int default_target_is_inactive(sd_bus *bus) {
return streq_ptr(state, "inactive");
}
static int start_default_target(sd_bus *bus) {
static int start_target(sd_bus *bus, const char *target) {
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
int r;
log_info("Starting "SPECIAL_DEFAULT_TARGET);
log_info("Starting %s", target);
/* Start this unit only if we can replace basic.target with it */
r = bus_call_method(
@ -78,10 +79,10 @@ static int start_default_target(sd_bus *bus) {
"StartUnit",
&error,
NULL,
"ss", SPECIAL_DEFAULT_TARGET, "isolate");
"ss", target, "isolate");
if (r < 0)
return log_error_errno(r, "Failed to start "SPECIAL_DEFAULT_TARGET": %s", bus_error_message(&error, r));
return log_error_errno(r, "Failed to start %s: %s", target, bus_error_message(&error, r));
return 0;
}
@ -105,8 +106,7 @@ static int fork_wait(const char* const cmdline[]) {
static void print_mode(const char* mode) {
printf("You are in %s mode. After logging in, type \"journalctl -xb\" to view\n"
"system logs, \"systemctl reboot\" to reboot, \"systemctl default\" or \"exit\"\n"
"to boot into default mode.\n", mode);
"system logs, \"systemctl reboot\" to reboot, or \"exit\"\n" "to continue bootup.\n", mode);
fflush(stdout);
}
@ -140,15 +140,17 @@ static int run(int argc, char *argv[]) {
if (reload_manager(bus) < 0)
goto fallback;
r = default_target_is_inactive(bus);
const char *target = in_initrd() ? SPECIAL_INITRD_TARGET : SPECIAL_DEFAULT_TARGET;
r = target_is_inactive(bus, target);
if (r < 0)
goto fallback;
if (!r) {
log_warning(SPECIAL_DEFAULT_TARGET" is not inactive. Please review the "SPECIAL_DEFAULT_TARGET" setting.\n");
log_warning("%s is not inactive. Please review the %s setting.\n", target, target);
goto fallback;
}
if (start_default_target(bus) >= 0)
if (start_target(bus, target) >= 0)
break;
fallback: