[thirdparty/systemd.git] / src / systemctl / systemctl-logind.c

/* SPDX-License-Identifier: LGPL-2.1-or-later */

#include <unistd.h>

#include "sd-login.h"

#include "bus-error.h"
#include "bus-locator.h"
#include "login-util.h"
#include "process-util.h"
#include "systemctl-logind.h"
#include "systemctl-start-unit.h"
#include "systemctl-util.h"
#include "systemctl.h"
#include "terminal-util.h"
#include "user-util.h"

static int logind_set_wall_message(sd_bus *bus) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        _cleanup_free_ char *m = NULL;
        int r;

        assert(bus);

        m = strv_join(arg_wall, " ");
        if (!m)
                return log_oom();

        log_debug("%s wall message \"%s\".", arg_dry_run ? "Would set" : "Setting", m);
        if (arg_dry_run)
                return 0;

        r = bus_call_method(bus, bus_login_mgr, "SetWallMessage", &error, NULL, "sb", m, !arg_no_wall);
        if (r < 0)
                return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r));
#endif
        return 0;
}

/* Ask systemd-logind, which might grant access to unprivileged users through polkit */
int logind_reboot(enum action a) {
#if ENABLE_LOGIND
        static const char* actions[_ACTION_MAX] = {
                [ACTION_POWEROFF]               = "PowerOff",
                [ACTION_REBOOT]                 = "Reboot",
                [ACTION_KEXEC]                  = "Reboot",
                [ACTION_SOFT_REBOOT]            = "Reboot",
                [ACTION_HALT]                   = "Halt",
                [ACTION_SUSPEND]                = "Suspend",
                [ACTION_HIBERNATE]              = "Hibernate",
                [ACTION_HYBRID_SLEEP]           = "HybridSleep",
                [ACTION_SUSPEND_THEN_HIBERNATE] = "SuspendThenHibernate",
        };

        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        uint64_t flags = 0;
        sd_bus *bus;
        int r;

        assert(a >= 0);
        assert(a < _ACTION_MAX);

        if (!actions[a])
                return -EINVAL;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        polkit_agent_open_maybe();
        (void) logind_set_wall_message(bus);

        const char *method_with_flags = strjoina(actions[a], "WithFlags");

        log_debug("%s org.freedesktop.login1.Manager %s dbus call.",
                  arg_dry_run ? "Would execute" : "Executing", method_with_flags);

        if (arg_dry_run)
                return 0;

        SET_FLAG(flags, SD_LOGIND_ROOT_CHECK_INHIBITORS, arg_check_inhibitors > 0);
        SET_FLAG(flags, SD_LOGIND_REBOOT_VIA_KEXEC, a == ACTION_KEXEC);
        SET_FLAG(flags, SD_LOGIND_SOFT_REBOOT, a == ACTION_SOFT_REBOOT);

        r = bus_call_method(bus, bus_login_mgr, method_with_flags, &error, NULL, "t", flags);
        if (r >= 0)
                return 0;
        if (!sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD))
                return log_error_errno(r, "Call to %s failed: %s", actions[a], bus_error_message(&error, r));

        /* Fall back to original methods in case there is an older version of systemd-logind */
        log_debug("Method %s not available: %s. Falling back to %s", method_with_flags, bus_error_message(&error, r), actions[a]);
        sd_bus_error_free(&error);

        r = bus_call_method(bus, bus_login_mgr, actions[a], &error, NULL, "b", arg_ask_password);
        if (r < 0)
                return log_error_errno(r, "Call to %s failed: %s", actions[a], bus_error_message(&error, r));

        return 0;
#else
        return -ENOSYS;
#endif
}

int logind_check_inhibitors(enum action a) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
        _cleanup_strv_free_ char **sessions = NULL;
        const char *what, *who, *why, *mode;
        uint32_t uid, pid;
        sd_bus *bus;
        unsigned c = 0;
        int r;

        assert(a >= 0);
        assert(a < _ACTION_MAX);

        if (arg_check_inhibitors == 0 || arg_force > 0)
                return 0;

        if (arg_when > 0)
                return 0;

        if (arg_check_inhibitors < 0) {
                if (geteuid() == 0)
                        return 0;

                if (!on_tty())
                        return 0;
        }

        if (arg_transport != BUS_TRANSPORT_LOCAL)
                return 0;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_call_method(bus, bus_login_mgr, "ListInhibitors", NULL, &reply, NULL);
        if (r < 0)
                /* If logind is not around, then there are no inhibitors... */
                return 0;

        r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
        if (r < 0)
                return bus_log_parse_error(r);

        while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
                _cleanup_free_ char *comm = NULL, *user = NULL;
                _cleanup_strv_free_ char **sv = NULL;

                if (!streq(mode, "block"))
                        continue;

                sv = strv_split(what, ":");
                if (!sv)
                        return log_oom();

                if (!pid_is_valid((pid_t) pid))
                        return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "Invalid PID "PID_FMT".", (pid_t) pid);

                if (!strv_contains(sv,
                                   IN_SET(a,
                                          ACTION_HALT,
                                          ACTION_POWEROFF,
                                          ACTION_REBOOT,
                                          ACTION_KEXEC) ? "shutdown" : "sleep"))
                        continue;

                (void) get_process_comm(pid, &comm);
                user = uid_to_name(uid);

                log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
                            who, (pid_t) pid, strna(comm), strna(user), why);

                c++;
        }
        if (r < 0)
                return bus_log_parse_error(r);

        r = sd_bus_message_exit_container(reply);
        if (r < 0)
                return bus_log_parse_error(r);

        /* Check for current sessions */
        sd_get_sessions(&sessions);
        STRV_FOREACH(s, sessions) {
                _cleanup_free_ char *type = NULL, *tty = NULL, *seat = NULL, *user = NULL, *service = NULL, *class = NULL;

                if (sd_session_get_uid(*s, &uid) < 0 || uid == getuid())
                        continue;

                if (sd_session_get_class(*s, &class) < 0 || !streq(class, "user"))
                        continue;

                if (sd_session_get_type(*s, &type) < 0 || !STR_IN_SET(type, "x11", "wayland", "tty", "mir"))
                        continue;

                sd_session_get_tty(*s, &tty);
                sd_session_get_seat(*s, &seat);
                sd_session_get_service(*s, &service);
                user = uid_to_name(uid);

                log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
                c++;
        }

        if (c <= 0)
                return 0;

        return log_error_errno(SYNTHETIC_ERRNO(EPERM),
                               "Please retry operation after closing inhibitors and logging out other users.\n"
                               "Alternatively, ignore inhibitors and users with 'systemctl %s -i'.",
                               action_table[a].verb);
#else
        return 0;
#endif
}

int prepare_firmware_setup(void) {

        if (!arg_firmware_setup)
                return 0;

#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        sd_bus *bus;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_call_method(bus, bus_login_mgr, "SetRebootToFirmwareSetup", &error, NULL, "b", true);
        if (r < 0)
                return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r));

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Booting into firmware setup not supported.");
#endif
}

int prepare_boot_loader_menu(void) {

        if (arg_boot_loader_menu == USEC_INFINITY)
                return 0;

#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        sd_bus *bus;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_call_method(bus, bus_login_mgr, "SetRebootToBootLoaderMenu", &error, NULL, "t", arg_boot_loader_menu);
        if (r < 0)
                return log_error_errno(r, "Cannot indicate to boot loader to enter boot loader entry menu: %s", bus_error_message(&error, r));

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Booting into boot loader menu not supported.");
#endif
}

int prepare_boot_loader_entry(void) {

        if (!arg_boot_loader_entry)
                return 0;

#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        sd_bus *bus;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_call_method(bus, bus_login_mgr, "SetRebootToBootLoaderEntry", &error, NULL, "s", arg_boot_loader_entry);
        if (r < 0)
                return log_error_errno(r, "Cannot set boot into loader entry '%s': %s", arg_boot_loader_entry, bus_error_message(&error, r));

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Booting into boot loader entry not supported.");
#endif
}

int logind_schedule_shutdown(enum action a) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        const char *action;
        sd_bus *bus;
        int r;

        assert(a >= 0);
        assert(a < _ACTION_MAX);

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        action = action_table[a].verb;
        if (!action)
                return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Scheduling not supported for this action.");

        if (arg_dry_run)
                action = strjoina("dry-", action);

        (void) logind_set_wall_message(bus);

        r = bus_call_method(bus, bus_login_mgr, "ScheduleShutdown", &error, NULL, "st", action, arg_when);
        if (r < 0)
                return log_warning_errno(r, "Failed to schedule shutdown: %s", bus_error_message(&error, r));

        if (!arg_quiet)
                logind_show_shutdown();

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Cannot schedule shutdown without logind support, proceeding with immediate shutdown.");
#endif
}

int logind_cancel_shutdown(void) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        sd_bus *bus;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        (void) logind_set_wall_message(bus);

        r = bus_call_method(bus, bus_login_mgr, "CancelScheduledShutdown", &error, NULL, NULL);
        if (r < 0)
                return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r));

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Not compiled with logind support, cannot cancel scheduled shutdowns.");
#endif
}

int logind_show_shutdown(void) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
        sd_bus *bus;
        const char *action, *pretty_action;
        uint64_t elapse;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_get_property(bus, bus_login_mgr, "ScheduledShutdown", &error, &reply, "(st)");
        if (r < 0)
                return log_error_errno(r, "Failed to query scheduled shutdown: %s", bus_error_message(&error, r));

        r = sd_bus_message_read(reply, "(st)", &action, &elapse);
        if (r < 0)
                return r;

        if (isempty(action))
                return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "No scheduled shutdown.");

        if (STR_IN_SET(action, "halt", "poweroff", "exit"))
                pretty_action = "Shutdown";
        else if (streq(action, "kexec"))
                pretty_action = "Reboot via kexec";
        else if (streq(action, "reboot"))
                pretty_action = "Reboot";
        else /* If we don't recognize the action string, we'll show it as-is */
                pretty_action = action;

        if (arg_action == ACTION_SYSTEMCTL)
                log_info("%s scheduled for %s, use 'systemctl %s --when=cancel' to cancel.",
                         pretty_action,
                         FORMAT_TIMESTAMP_STYLE(elapse, arg_timestamp_style),
                         action);
        else
                log_info("%s scheduled for %s, use 'shutdown -c' to cancel.",
                         pretty_action,
                         FORMAT_TIMESTAMP_STYLE(elapse, arg_timestamp_style));

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Not compiled with logind support, cannot show scheduled shutdowns.");
#endif
}

int help_boot_loader_entry(void) {
#if ENABLE_LOGIND
        _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
        _cleanup_strv_free_ char **l = NULL;
        sd_bus *bus;
        int r;

        r = acquire_bus(BUS_FULL, &bus);
        if (r < 0)
                return r;

        r = bus_get_property_strv(bus, bus_login_mgr, "BootLoaderEntries", &error, &l);
        if (r < 0)
                return log_error_errno(r, "Failed to enumerate boot loader entries: %s", bus_error_message(&error, r));

        if (strv_isempty(l))
                return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "No boot loader entries discovered.");

        STRV_FOREACH(i, l)
                puts(*i);

        return 0;
#else
        return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
                               "Not compiled with logind support, cannot display boot loader entries.");
#endif
}
Commit	Line	Data
db9ecf05	1	/* SPDX-License-Identifier: LGPL-2.1-or-later */
daf71ef6 LP	2
	3	#include <unistd.h>
	4
	5	#include "sd-login.h"
	6
	7	#include "bus-error.h"
	8	#include "bus-locator.h"
8885fed4	9	#include "login-util.h"
daf71ef6 LP	10	#include "process-util.h"
	11	#include "systemctl-logind.h"
	12	#include "systemctl-start-unit.h"
	13	#include "systemctl-util.h"
	14	#include "systemctl.h"
	15	#include "terminal-util.h"
	16	#include "user-util.h"
	17
346840b1	18	static int logind_set_wall_message(sd_bus *bus) {
daf71ef6 LP	19	#if ENABLE_LOGIND
daf71ef6 LP	20	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
daf71ef6 LP	21	_cleanup_free_ char *m = NULL;
	22	int r;
	23
9071eea0 MY	24	assert(bus);
9071eea0 MY	25
daf71ef6 LP	26	m = strv_join(arg_wall, " ");
	27	if (!m)
	28	return log_oom();
	29
	30	log_debug("%s wall message \"%s\".", arg_dry_run ? "Would set" : "Setting", m);
	31	if (arg_dry_run)
	32	return 0;
	33
	34	r = bus_call_method(bus, bus_login_mgr, "SetWallMessage", &error, NULL, "sb", m, !arg_no_wall);
	35	if (r < 0)
	36	return log_warning_errno(r, "Failed to set wall message, ignoring: %s", bus_error_message(&error, r));
	37	#endif
	38	return 0;
	39	}
	40
	41	/* Ask systemd-logind, which might grant access to unprivileged users through polkit */
	42	int logind_reboot(enum action a) {
	43	#if ENABLE_LOGIND
1cc11a09 ZJS	44	static const char* actions[_ACTION_MAX] = {
	45	[ACTION_POWEROFF] = "PowerOff",
	46	[ACTION_REBOOT] = "Reboot",
	47	[ACTION_KEXEC] = "Reboot",
34f21ff6	48	[ACTION_SOFT_REBOOT] = "Reboot",
1cc11a09 ZJS	49	[ACTION_HALT] = "Halt",
	50	[ACTION_SUSPEND] = "Suspend",
	51	[ACTION_HIBERNATE] = "Hibernate",
	52	[ACTION_HYBRID_SLEEP] = "HybridSleep",
	53	[ACTION_SUSPEND_THEN_HIBERNATE] = "SuspendThenHibernate",
daf71ef6 LP	54	};
	55
	56	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
8885fed4	57	uint64_t flags = 0;
daf71ef6 LP	58	sd_bus *bus;
	59	int r;
	60
9071eea0 MY	61	assert(a >= 0);
	62	assert(a < _ACTION_MAX);
	63
	64	if (!actions[a])
daf71ef6 LP	65	return -EINVAL;
	66
	67	r = acquire_bus(BUS_FULL, &bus);
	68	if (r < 0)
	69	return r;
	70
	71	polkit_agent_open_maybe();
346840b1	72	(void) logind_set_wall_message(bus);
daf71ef6	73
1cc11a09 ZJS	74	const char *method_with_flags = strjoina(actions[a], "WithFlags");
	75
	76	log_debug("%s org.freedesktop.login1.Manager %s dbus call.",
	77	arg_dry_run ? "Would execute" : "Executing", method_with_flags);
daf71ef6 LP	78
	79	if (arg_dry_run)
	80	return 0;
	81
8885fed4	82	SET_FLAG(flags, SD_LOGIND_ROOT_CHECK_INHIBITORS, arg_check_inhibitors > 0);
1d8a16f1	83	SET_FLAG(flags, SD_LOGIND_REBOOT_VIA_KEXEC, a == ACTION_KEXEC);
34f21ff6	84	SET_FLAG(flags, SD_LOGIND_SOFT_REBOOT, a == ACTION_SOFT_REBOOT);
8885fed4	85
8885fed4 DR	86	r = bus_call_method(bus, bus_login_mgr, method_with_flags, &error, NULL, "t", flags);
	87	if (r >= 0)
	88	return 0;
	89	if (!sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_METHOD))
1cc11a09	90	return log_error_errno(r, "Call to %s failed: %s", actions[a], bus_error_message(&error, r));
8885fed4	91
1cc11a09 ZJS	92	/* Fall back to original methods in case there is an older version of systemd-logind */
1cc11a09 ZJS	93	log_debug("Method %s not available: %s. Falling back to %s", method_with_flags, bus_error_message(&error, r), actions[a]);
8885fed4 DR	94	sd_bus_error_free(&error);
8885fed4 DR	95
1cc11a09	96	r = bus_call_method(bus, bus_login_mgr, actions[a], &error, NULL, "b", arg_ask_password);
daf71ef6	97	if (r < 0)
1cc11a09	98	return log_error_errno(r, "Call to %s failed: %s", actions[a], bus_error_message(&error, r));
daf71ef6 LP	99
	100	return 0;
	101	#else
	102	return -ENOSYS;
	103	#endif
	104	}
	105
	106	int logind_check_inhibitors(enum action a) {
	107	#if ENABLE_LOGIND
	108	_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
	109	_cleanup_strv_free_ char **sessions = NULL;
	110	const char what, who, why, mode;
	111	uint32_t uid, pid;
	112	sd_bus *bus;
	113	unsigned c = 0;
daf71ef6 LP	114	int r;
daf71ef6 LP	115
9071eea0 MY	116	assert(a >= 0);
	117	assert(a < _ACTION_MAX);
	118
4327574f	119	if (arg_check_inhibitors == 0 \|\| arg_force > 0)
daf71ef6 LP	120	return 0;
	121
	122	if (arg_when > 0)
	123	return 0;
	124
4327574f FS	125	if (arg_check_inhibitors < 0) {
	126	if (geteuid() == 0)
	127	return 0;
daf71ef6	128
4327574f FS	129	if (!on_tty())
	130	return 0;
	131	}
daf71ef6 LP	132
	133	if (arg_transport != BUS_TRANSPORT_LOCAL)
	134	return 0;
	135
	136	r = acquire_bus(BUS_FULL, &bus);
	137	if (r < 0)
	138	return r;
	139
	140	r = bus_call_method(bus, bus_login_mgr, "ListInhibitors", NULL, &reply, NULL);
	141	if (r < 0)
	142	/* If logind is not around, then there are no inhibitors... */
	143	return 0;
	144
	145	r = sd_bus_message_enter_container(reply, SD_BUS_TYPE_ARRAY, "(ssssuu)");
	146	if (r < 0)
	147	return bus_log_parse_error(r);
	148
	149	while ((r = sd_bus_message_read(reply, "(ssssuu)", &what, &who, &why, &mode, &uid, &pid)) > 0) {
	150	_cleanup_free_ char comm = NULL, user = NULL;
	151	_cleanup_strv_free_ char **sv = NULL;
	152
	153	if (!streq(mode, "block"))
	154	continue;
	155
	156	sv = strv_split(what, ":");
	157	if (!sv)
	158	return log_oom();
	159
	160	if (!pid_is_valid((pid_t) pid))
	161	return log_error_errno(SYNTHETIC_ERRNO(ERANGE), "Invalid PID "PID_FMT".", (pid_t) pid);
	162
	163	if (!strv_contains(sv,
	164	IN_SET(a,
	165	ACTION_HALT,
	166	ACTION_POWEROFF,
	167	ACTION_REBOOT,
	168	ACTION_KEXEC) ? "shutdown" : "sleep"))
	169	continue;
	170
74d6421d	171	(void) get_process_comm(pid, &comm);
daf71ef6 LP	172	user = uid_to_name(uid);
	173
	174	log_warning("Operation inhibited by \"%s\" (PID "PID_FMT" \"%s\", user %s), reason is \"%s\".",
	175	who, (pid_t) pid, strna(comm), strna(user), why);
	176
	177	c++;
	178	}
	179	if (r < 0)
	180	return bus_log_parse_error(r);
	181
	182	r = sd_bus_message_exit_container(reply);
	183	if (r < 0)
	184	return bus_log_parse_error(r);
	185
	186	/* Check for current sessions */
	187	sd_get_sessions(&sessions);
	188	STRV_FOREACH(s, sessions) {
	189	_cleanup_free_ char type = NULL, tty = NULL, seat = NULL, user = NULL, service = NULL, class = NULL;
	190
	191	if (sd_session_get_uid(*s, &uid) < 0 \|\| uid == getuid())
	192	continue;
	193
	194	if (sd_session_get_class(*s, &class) < 0 \|\| !streq(class, "user"))
	195	continue;
	196
	197	if (sd_session_get_type(*s, &type) < 0 \|\| !STR_IN_SET(type, "x11", "wayland", "tty", "mir"))
	198	continue;
	199
	200	sd_session_get_tty(*s, &tty);
	201	sd_session_get_seat(*s, &seat);
	202	sd_session_get_service(*s, &service);
	203	user = uid_to_name(uid);
	204
	205	log_warning("User %s is logged in on %s.", strna(user), isempty(tty) ? (isempty(seat) ? strna(service) : seat) : tty);
	206	c++;
	207	}
	208
	209	if (c <= 0)
	210	return 0;
	211
d7a0f1f4 FS	212	return log_error_errno(SYNTHETIC_ERRNO(EPERM),
	213	"Please retry operation after closing inhibitors and logging out other users.\n"
	214	"Alternatively, ignore inhibitors and users with 'systemctl %s -i'.",
	215	action_table[a].verb);
daf71ef6 LP	216	#else
	217	return 0;
	218	#endif
	219	}
	220
	221	int prepare_firmware_setup(void) {
	222
	223	if (!arg_firmware_setup)
	224	return 0;
	225
	226	#if ENABLE_LOGIND
	227	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	228	sd_bus *bus;
	229	int r;
	230
	231	r = acquire_bus(BUS_FULL, &bus);
	232	if (r < 0)
	233	return r;
	234
	235	r = bus_call_method(bus, bus_login_mgr, "SetRebootToFirmwareSetup", &error, NULL, "b", true);
	236	if (r < 0)
	237	return log_error_errno(r, "Cannot indicate to EFI to boot into setup mode: %s", bus_error_message(&error, r));
	238
	239	return 0;
	240	#else
	241	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	242	"Booting into firmware setup not supported.");
	243	#endif
	244	}
	245
	246	int prepare_boot_loader_menu(void) {
	247
	248	if (arg_boot_loader_menu == USEC_INFINITY)
	249	return 0;
	250
	251	#if ENABLE_LOGIND
	252	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	253	sd_bus *bus;
	254	int r;
	255
	256	r = acquire_bus(BUS_FULL, &bus);
	257	if (r < 0)
	258	return r;
	259
	260	r = bus_call_method(bus, bus_login_mgr, "SetRebootToBootLoaderMenu", &error, NULL, "t", arg_boot_loader_menu);
	261	if (r < 0)
	262	return log_error_errno(r, "Cannot indicate to boot loader to enter boot loader entry menu: %s", bus_error_message(&error, r));
	263
	264	return 0;
	265	#else
	266	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	267	"Booting into boot loader menu not supported.");
	268	#endif
	269	}
	270
	271	int prepare_boot_loader_entry(void) {
	272
	273	if (!arg_boot_loader_entry)
	274	return 0;
	275
	276	#if ENABLE_LOGIND
	277	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	278	sd_bus *bus;
	279	int r;
280
281	r = acquire_bus(BUS_FULL, &bus);
282	if (r < 0)
283	return r;
284
285	r = bus_call_method(bus, bus_login_mgr, "SetRebootToBootLoaderEntry", &error, NULL, "s", arg_boot_loader_entry);
286	if (r < 0)
287	return log_error_errno(r, "Cannot set boot into loader entry '%s': %s", arg_boot_loader_entry, bus_error_message(&error, r));
288
289	return 0;
290	#else
291	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
292	"Booting into boot loader entry not supported.");
293	#endif
294	}
295
92b00e86	296	int logind_schedule_shutdown(enum action a) {
daf71ef6 LP	297	#if ENABLE_LOGIND
daf71ef6 LP	298	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
daf71ef6	299	const char *action;
daf71ef6 LP	300	sd_bus *bus;
	301	int r;
	302
92b00e86 MY	303	assert(a >= 0);
	304	assert(a < _ACTION_MAX);
	305
daf71ef6 LP	306	r = acquire_bus(BUS_FULL, &bus);
	307	if (r < 0)
	308	return r;
	309
92b00e86	310	action = action_table[a].verb;
00886e06 LN	311	if (!action)
00886e06 LN	312	return log_error_errno(SYNTHETIC_ERRNO(EINVAL), "Scheduling not supported for this action.");
daf71ef6 LP	313
	314	if (arg_dry_run)
	315	action = strjoina("dry-", action);
	316
346840b1	317	(void) logind_set_wall_message(bus);
daf71ef6 LP	318
	319	r = bus_call_method(bus, bus_login_mgr, "ScheduleShutdown", &error, NULL, "st", action, arg_when);
	320	if (r < 0)
38d55bf2	321	return log_warning_errno(r, "Failed to schedule shutdown: %s", bus_error_message(&error, r));
daf71ef6 LP	322
daf71ef6 LP	323	if (!arg_quiet)
8e985681 LN	324	logind_show_shutdown();
8e985681 LN	325
daf71ef6 LP	326	return 0;
	327	#else
	328	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	329	"Cannot schedule shutdown without logind support, proceeding with immediate shutdown.");
	330	#endif
	331	}
	332
	333	int logind_cancel_shutdown(void) {
	334	#if ENABLE_LOGIND
	335	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	336	sd_bus *bus;
	337	int r;
	338
	339	r = acquire_bus(BUS_FULL, &bus);
	340	if (r < 0)
	341	return r;
	342
346840b1	343	(void) logind_set_wall_message(bus);
daf71ef6 LP	344
	345	r = bus_call_method(bus, bus_login_mgr, "CancelScheduledShutdown", &error, NULL, NULL);
	346	if (r < 0)
	347	return log_warning_errno(r, "Failed to talk to logind, shutdown hasn't been cancelled: %s", bus_error_message(&error, r));
	348
	349	return 0;
	350	#else
	351	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	352	"Not compiled with logind support, cannot cancel scheduled shutdowns.");
	353	#endif
	354	}
	355
a9c3cc8d LN	356	int logind_show_shutdown(void) {
	357	#if ENABLE_LOGIND
	358	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	359	_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
	360	sd_bus *bus;
1433e1f9	361	const char action, pretty_action;
a9c3cc8d LN	362	uint64_t elapse;
	363	int r;
	364
	365	r = acquire_bus(BUS_FULL, &bus);
	366	if (r < 0)
	367	return r;
	368
	369	r = bus_get_property(bus, bus_login_mgr, "ScheduledShutdown", &error, &reply, "(st)");
	370	if (r < 0)
	371	return log_error_errno(r, "Failed to query scheduled shutdown: %s", bus_error_message(&error, r));
	372
	373	r = sd_bus_message_read(reply, "(st)", &action, &elapse);
	374	if (r < 0)
	375	return r;
	376
	377	if (isempty(action))
	378	return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "No scheduled shutdown.");
	379
f80c3d5c	380	if (STR_IN_SET(action, "halt", "poweroff", "exit"))
1433e1f9	381	pretty_action = "Shutdown";
8e985681	382	else if (streq(action, "kexec"))
1433e1f9	383	pretty_action = "Reboot via kexec";
8e985681	384	else if (streq(action, "reboot"))
1433e1f9 MY	385	pretty_action = "Reboot";
	386	else /* If we don't recognize the action string, we'll show it as-is */
	387	pretty_action = action;
	388
	389	if (arg_action == ACTION_SYSTEMCTL)
	390	log_info("%s scheduled for %s, use 'systemctl %s --when=cancel' to cancel.",
	391	pretty_action,
	392	FORMAT_TIMESTAMP_STYLE(elapse, arg_timestamp_style),
	393	action);
	394	else
	395	log_info("%s scheduled for %s, use 'shutdown -c' to cancel.",
	396	pretty_action,
	397	FORMAT_TIMESTAMP_STYLE(elapse, arg_timestamp_style));
a9c3cc8d LN	398
	399	return 0;
	400	#else
	401	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	402	"Not compiled with logind support, cannot show scheduled shutdowns.");
	403	#endif
	404	}
	405
daf71ef6 LP	406	int help_boot_loader_entry(void) {
	407	#if ENABLE_LOGIND
	408	_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
	409	_cleanup_strv_free_ char **l = NULL;
	410	sd_bus *bus;
daf71ef6 LP	411	int r;
	412
	413	r = acquire_bus(BUS_FULL, &bus);
	414	if (r < 0)
	415	return r;
	416
	417	r = bus_get_property_strv(bus, bus_login_mgr, "BootLoaderEntries", &error, &l);
	418	if (r < 0)
	419	return log_error_errno(r, "Failed to enumerate boot loader entries: %s", bus_error_message(&error, r));
	420
	421	if (strv_isempty(l))
	422	return log_error_errno(SYNTHETIC_ERRNO(ENODATA), "No boot loader entries discovered.");
	423
	424	STRV_FOREACH(i, l)
	425	puts(*i);
	426
	427	return 0;
	428	#else
	429	return log_error_errno(SYNTHETIC_ERRNO(ENOSYS),
	430	"Not compiled with logind support, cannot display boot loader entries.");
	431	#endif
	432	}