1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2010 Lennart Poettering
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published by
10 the Free Software Foundation; either version 2 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 General Public License for more details.
18 You should have received a copy of the GNU General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
22 #include <dbus/dbus.h>
28 #include <sys/types.h>
37 #include "mount-setup.h"
38 #include "hostname-setup.h"
39 #include "loopback-setup.h"
40 #include "kmod-setup.h"
41 #include "load-fragment.h"
44 #include "conf-parser.h"
45 #include "bus-errors.h"
54 ACTION_DUMP_CONFIGURATION_ITEMS,
56 } arg_action = ACTION_RUN;
58 static char *arg_default_unit = NULL;
59 static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
61 static bool arg_dump_core = true;
62 static bool arg_crash_shell = false;
63 static int arg_crash_chvt = -1;
64 static bool arg_confirm_spawn = false;
65 static bool arg_show_status = true;
66 static bool arg_sysv_console = true;
67 static bool arg_mount_auto = true;
68 static bool arg_swap_auto = true;
69 static char *arg_console = NULL;
71 static FILE* serialization = NULL;
73 _noreturn_ static void freeze(void) {
78 static void nop_handler(int sig) {
81 _noreturn_ static void crash(int sig) {
84 log_error("Caught <%s>, not dumping core.", signal_to_string(sig));
89 /* We want to wait for the core process, hence let's enable SIGCHLD */
91 sa.sa_handler = nop_handler;
92 sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;
93 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
95 if ((pid = fork()) < 0)
96 log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno));
101 /* Enable default signal handler for core dump */
103 sa.sa_handler = SIG_DFL;
104 assert_se(sigaction(sig, &sa, NULL) == 0);
106 /* Don't limit the core dump size */
108 rl.rlim_cur = RLIM_INFINITY;
109 rl.rlim_max = RLIM_INFINITY;
110 setrlimit(RLIMIT_CORE, &rl);
112 /* Just to be sure... */
113 assert_se(chdir("/") == 0);
115 /* Raise the signal again */
118 assert_not_reached("We shouldn't be here...");
124 /* Order things nicely. */
125 if (waitpid(pid, &status, 0) < 0)
126 log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(errno));
127 else if (!WCOREDUMP(status))
128 log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
130 log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid);
135 chvt(arg_crash_chvt);
137 if (arg_crash_shell) {
141 log_info("Executing crash shell in 10s...");
144 /* Let the kernel reap children for us */
146 sa.sa_handler = SIG_IGN;
147 sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART;
148 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
150 if ((pid = fork()) < 0)
151 log_error("Failed to fork off crash shell: %s", strerror(errno));
155 if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0)
156 log_error("Failed to acquire terminal: %s", strerror(-fd));
157 else if ((r = make_stdio(fd)) < 0)
158 log_error("Failed to duplicate terminal fd: %s", strerror(-r));
160 execl("/bin/sh", "/bin/sh", NULL);
162 log_error("execl() failed: %s", strerror(errno));
166 log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid);
169 log_info("Freezing execution.");
173 static void install_crash_handler(void) {
178 sa.sa_handler = crash;
179 sa.sa_flags = SA_NODEFER;
181 sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
184 static int make_null_stdio(void) {
187 if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) {
188 log_error("Failed to open /dev/null: %m");
192 if ((r = make_stdio(null_fd)) < 0)
193 log_warning("Failed to dup2() device: %s", strerror(-r));
198 static int console_setup(bool do_reset) {
201 /* If we are init, we connect stdin/stdout/stderr to /dev/null
202 * and make sure we don't have a controlling tty. */
209 if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) {
210 log_error("Failed to open /dev/console: %s", strerror(-tty_fd));
214 if ((r = reset_terminal(tty_fd)) < 0)
215 log_error("Failed to reset /dev/console: %s", strerror(-r));
217 close_nointr_nofail(tty_fd);
221 static int set_default_unit(const char *u) {
226 if (!(c = strdup(u)))
229 free(arg_default_unit);
230 arg_default_unit = c;
234 static int parse_proc_cmdline_word(const char *word) {
236 static const char * const rlmap[] = {
237 "emergency", SPECIAL_EMERGENCY_TARGET,
238 "single", SPECIAL_RESCUE_TARGET,
239 "-s", SPECIAL_RESCUE_TARGET,
240 "s", SPECIAL_RESCUE_TARGET,
241 "S", SPECIAL_RESCUE_TARGET,
242 "1", SPECIAL_RESCUE_TARGET,
243 "2", SPECIAL_RUNLEVEL2_TARGET,
244 "3", SPECIAL_RUNLEVEL3_TARGET,
245 "4", SPECIAL_RUNLEVEL4_TARGET,
246 "5", SPECIAL_RUNLEVEL5_TARGET,
251 if (startswith(word, "systemd.unit="))
252 return set_default_unit(word + 13);
254 else if (startswith(word, "systemd.log_target=")) {
256 if (log_set_target_from_string(word + 19) < 0)
257 log_warning("Failed to parse log target %s. Ignoring.", word + 19);
259 } else if (startswith(word, "systemd.log_level=")) {
261 if (log_set_max_level_from_string(word + 18) < 0)
262 log_warning("Failed to parse log level %s. Ignoring.", word + 18);
264 } else if (startswith(word, "systemd.log_color=")) {
266 if (log_show_color_from_string(word + 18) < 0)
267 log_warning("Failed to parse log color setting %s. Ignoring.", word + 18);
269 } else if (startswith(word, "systemd.log_location=")) {
271 if (log_show_location_from_string(word + 21) < 0)
272 log_warning("Failed to parse log location setting %s. Ignoring.", word + 21);
274 } else if (startswith(word, "systemd.dump_core=")) {
277 if ((r = parse_boolean(word + 18)) < 0)
278 log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18);
282 } else if (startswith(word, "systemd.crash_shell=")) {
285 if ((r = parse_boolean(word + 20)) < 0)
286 log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20);
290 } else if (startswith(word, "systemd.confirm_spawn=")) {
293 if ((r = parse_boolean(word + 22)) < 0)
294 log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22);
296 arg_confirm_spawn = r;
298 } else if (startswith(word, "systemd.crash_chvt=")) {
301 if (safe_atoi(word + 19, &k) < 0)
302 log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19);
306 } else if (startswith(word, "systemd.show_status=")) {
309 if ((r = parse_boolean(word + 20)) < 0)
310 log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
314 } else if (startswith(word, "systemd.sysv_console=")) {
317 if ((r = parse_boolean(word + 21)) < 0)
318 log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20);
320 arg_sysv_console = r;
322 } else if (startswith(word, "systemd.")) {
324 log_warning("Unknown kernel switch %s. Ignoring.", word);
326 log_info("Supported kernel switches:\n"
327 "systemd.unit=UNIT Default unit to start\n"
328 "systemd.dump_core=0|1 Dump core on crash\n"
329 "systemd.crash_shell=0|1 Run shell on crash\n"
330 "systemd.crash_chvt=N Change to VT #N on crash\n"
331 "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
332 "systemd.show_status=0|1 Show status updates on the console during bootup\n"
333 "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
334 "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n"
336 "systemd.log_level=LEVEL Log level\n"
337 "systemd.log_color=0|1 Highlight important log messages\n"
338 "systemd.log_location=0|1 Include code location in log messages\n");
340 } else if (startswith(word, "console=")) {
348 /* Ignore the console setting if set to a VT */
350 !startswith(k, "tty") ||
351 k[3+strspn(k+3, "0123456789")] != 0) {
353 if (!(w = strndup(k, l)))
360 } else if (streq(word, "quiet")) {
361 arg_show_status = false;
362 arg_sysv_console = false;
366 /* SysV compatibility */
367 for (i = 0; i < ELEMENTSOF(rlmap); i += 2)
368 if (streq(word, rlmap[i]))
369 return set_default_unit(rlmap[i+1]);
375 static int config_parse_level(
376 const char *filename,
388 log_set_max_level_from_string(rvalue);
392 static int config_parse_target(
393 const char *filename,
405 log_set_target_from_string(rvalue);
409 static int config_parse_color(
410 const char *filename,
422 log_show_color_from_string(rvalue);
426 static int config_parse_location(
427 const char *filename,
439 log_show_location_from_string(rvalue);
443 static int config_parse_cpu_affinity(
444 const char *filename,
462 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
467 if (!(t = strndup(w, l)))
470 r = safe_atou(t, &cpu);
474 if (!(c = cpu_set_malloc(&ncpus)))
477 if (r < 0 || cpu >= ncpus) {
478 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
483 CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c);
487 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
488 log_warning("Failed to set CPU affinity: %m");
496 static int parse_config_file(void) {
498 const ConfigItem items[] = {
499 { "LogLevel", config_parse_level, NULL, "Manager" },
500 { "LogTarget", config_parse_target, NULL, "Manager" },
501 { "LogColor", config_parse_color, NULL, "Manager" },
502 { "LogLocation", config_parse_location, NULL, "Manager" },
503 { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
504 { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
505 { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
506 { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
507 { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
508 { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
509 { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
510 { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
511 { NULL, NULL, NULL, NULL }
514 static const char * const sections[] = {
523 fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : SESSION_CONFIG_FILE;
525 if (!(f = fopen(fn, "re"))) {
529 log_warning("Failed to open configuration file '%s': %m", fn);
533 if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0)
534 log_warning("Failed to parse configuration file: %s", strerror(-r));
541 static int parse_proc_cmdline(void) {
548 if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
549 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
553 FOREACH_WORD_QUOTED(w, l, line, state) {
556 if (!(word = strndup(w, l))) {
561 r = parse_proc_cmdline_word(word);
575 static int parse_argv(int argc, char *argv[]) {
578 ARG_LOG_LEVEL = 0x100,
586 ARG_DUMP_CONFIGURATION_ITEMS,
596 static const struct option options[] = {
597 { "log-level", required_argument, NULL, ARG_LOG_LEVEL },
598 { "log-target", required_argument, NULL, ARG_LOG_TARGET },
599 { "log-color", optional_argument, NULL, ARG_LOG_COLOR },
600 { "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
601 { "unit", required_argument, NULL, ARG_UNIT },
602 { "system", no_argument, NULL, ARG_SYSTEM },
603 { "session", no_argument, NULL, ARG_SESSION },
604 { "test", no_argument, NULL, ARG_TEST },
605 { "help", no_argument, NULL, 'h' },
606 { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
607 { "dump-core", no_argument, NULL, ARG_DUMP_CORE },
608 { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL },
609 { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
610 { "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
611 { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE },
612 { "deserialize", required_argument, NULL, ARG_DESERIALIZE },
613 { "introspect", optional_argument, NULL, ARG_INTROSPECT },
622 while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0)
627 if ((r = log_set_max_level_from_string(optarg)) < 0) {
628 log_error("Failed to parse log level %s.", optarg);
636 if ((r = log_set_target_from_string(optarg)) < 0) {
637 log_error("Failed to parse log target %s.", optarg);
646 if ((r = log_show_color_from_string(optarg)) < 0) {
647 log_error("Failed to parse log color setting %s.", optarg);
651 log_show_color(true);
655 case ARG_LOG_LOCATION:
658 if ((r = log_show_location_from_string(optarg)) < 0) {
659 log_error("Failed to parse log location setting %s.", optarg);
663 log_show_location(true);
669 if ((r = set_default_unit(optarg)) < 0) {
670 log_error("Failed to set default unit %s: %s", optarg, strerror(-r));
677 arg_running_as = MANAGER_SYSTEM;
681 arg_running_as = MANAGER_SESSION;
685 arg_action = ACTION_TEST;
688 case ARG_DUMP_CONFIGURATION_ITEMS:
689 arg_action = ACTION_DUMP_CONFIGURATION_ITEMS;
693 arg_dump_core = true;
696 case ARG_CRASH_SHELL:
697 arg_crash_shell = true;
700 case ARG_CONFIRM_SPAWN:
701 arg_confirm_spawn = true;
704 case ARG_SHOW_STATUS:
707 if ((r = parse_boolean(optarg)) < 0) {
708 log_error("Failed to show status boolean %s.", optarg);
713 arg_show_status = true;
716 case ARG_SYSV_CONSOLE:
719 if ((r = parse_boolean(optarg)) < 0) {
720 log_error("Failed to SysV console boolean %s.", optarg);
723 arg_sysv_console = r;
725 arg_sysv_console = true;
728 case ARG_DESERIALIZE: {
732 if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) {
733 log_error("Failed to parse deserialize option %s.", optarg);
737 if (!(f = fdopen(fd, "r"))) {
738 log_error("Failed to open serialization fd: %m");
743 fclose(serialization);
750 case ARG_INTROSPECT: {
751 const char * const * i = NULL;
753 for (i = bus_interface_table; *i; i += 2)
754 if (!optarg || streq(i[0], optarg)) {
755 fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
758 fputs("</node>\n", stdout);
765 log_error("Unknown interface %s.", optarg);
767 arg_action = ACTION_DONE;
772 arg_action = ACTION_HELP;
776 log_set_max_level(LOG_DEBUG);
783 log_error("Unknown option code %c", c);
787 /* PID 1 will get the kernel arguments as parameters, which we
788 * ignore and unconditionally read from
789 * /proc/cmdline. However, we need to ignore those arguments
791 if (arg_running_as != MANAGER_SYSTEM && optind < argc) {
792 log_error("Excess arguments.");
799 static int help(void) {
801 printf("%s [OPTIONS...]\n\n"
802 "Starts up and maintains the system or a session.\n\n"
803 " -h --help Show this help\n"
804 " --test Determine startup sequence, dump it and exit\n"
805 " --dump-configuration-items Dump understood unit configuration items\n"
806 " --introspect[=INTERFACE] Extract D-Bus interface data\n"
807 " --unit=UNIT Set default unit\n"
808 " --system Run a system instance, even if PID != 1\n"
809 " --session Run a session instance\n"
810 " --dump-core Dump core on crash\n"
811 " --crash-shell Run shell on crash\n"
812 " --confirm-spawn Ask for confirmation when spawning processes\n"
813 " --show-status[=0|1] Show status updates on the console during bootup\n"
814 " --sysv-console[=0|1] Connect output of SysV scripts to console\n"
815 " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
816 " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
817 " --log-color[=0|1] Highlight important log messages\n"
818 " --log-location[=0|1] Include code location in log messages\n",
819 program_invocation_short_name);
824 static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) {
833 if ((r = manager_open_serialization(m, &f)) < 0) {
834 log_error("Failed to create serialization faile: %s", strerror(-r));
838 if (!(fds = fdset_new())) {
840 log_error("Failed to allocate fd set: %s", strerror(-r));
844 if ((r = manager_serialize(m, f, fds)) < 0) {
845 log_error("Failed to serialize state: %s", strerror(-r));
849 if (fseeko(f, 0, SEEK_SET) < 0) {
850 log_error("Failed to rewind serialization fd: %m");
854 if ((r = fd_cloexec(fileno(f), false)) < 0) {
855 log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r));
859 if ((r = fdset_cloexec(fds, false)) < 0) {
860 log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r));
878 int main(int argc, char *argv[]) {
880 int r, retval = EXIT_FAILURE;
882 bool reexecute = false;
884 if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
885 /* This is compatbility support for SysV, where
886 * calling init as a user is identical to telinit. */
889 execv(SYSTEMCTL_BINARY_PATH, argv);
890 log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m");
894 log_show_color(isatty(STDERR_FILENO) > 0);
895 log_show_location(false);
896 log_set_max_level(LOG_INFO);
899 arg_running_as = MANAGER_SYSTEM;
900 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
902 if (label_init() < 0)
905 arg_running_as = MANAGER_SESSION;
906 log_set_target(LOG_TARGET_CONSOLE);
909 if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0)
912 /* Mount /proc, /sys and friends, so that /proc/cmdline and
913 * /proc/$PID/fd is available. */
914 if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
915 if (mount_setup() < 0)
918 /* Reset all signal handlers. */
919 assert_se(reset_all_signal_handlers() == 0);
921 /* If we are init, we can block sigkill. Yay. */
922 ignore_signals(SIGNALS_IGNORE, -1);
924 if (parse_config_file() < 0)
927 if (arg_running_as == MANAGER_SYSTEM)
928 if (parse_proc_cmdline() < 0)
931 log_parse_environment();
933 if (parse_argv(argc, argv) < 0)
936 if (arg_action == ACTION_HELP) {
939 } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
940 unit_dump_config_items(stdout);
941 retval = EXIT_SUCCESS;
943 } else if (arg_action == ACTION_DONE) {
944 retval = EXIT_SUCCESS;
948 assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST);
950 /* Remember open file descriptors for later deserialization */
952 if ((r = fdset_new_fill(&fds)) < 0) {
953 log_error("Failed to allocate fd set: %s", strerror(-r));
957 assert_se(fdset_remove(fds, fileno(serialization)) >= 0);
959 close_all_fds(NULL, 0);
961 /* Set up PATH unless it is already set */
963 "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
964 arg_running_as == MANAGER_SYSTEM);
966 /* Move out of the way, so that we won't block unmounts */
967 assert_se(chdir("/") == 0);
969 if (arg_running_as == MANAGER_SYSTEM) {
970 /* Become a session leader if we aren't one yet. */
973 /* Disable the umask logic */
977 /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
978 dbus_connection_set_change_sigpipe(FALSE);
980 /* Reset the console, but only if this is really init and we
981 * are freshly booted */
982 if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) {
983 console_setup(getpid() == 1 && !serialization);
987 /* Open the logging devices, if possible and necessary */
990 /* Make sure we leave a core dump without panicing the
993 install_crash_handler();
995 log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
996 PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
998 if (arg_running_as == MANAGER_SYSTEM && !serialization) {
1007 if ((r = manager_new(arg_running_as, &m)) < 0) {
1008 log_error("Failed to allocate manager object: %s", strerror(-r));
1012 m->confirm_spawn = arg_confirm_spawn;
1013 m->show_status = arg_show_status;
1014 m->sysv_console = arg_sysv_console;
1015 m->mount_auto = arg_mount_auto;
1016 m->swap_auto = arg_swap_auto;
1019 manager_set_console(m, arg_console);
1021 if ((r = manager_startup(m, serialization, fds)) < 0)
1022 log_error("Failed to fully start up daemon: %s", strerror(-r));
1025 /* This will close all file descriptors that were opened, but
1026 * not claimed by any unit. */
1032 if (serialization) {
1033 fclose(serialization);
1034 serialization = NULL;
1037 Unit *target = NULL;
1039 dbus_error_init(&error);
1041 log_debug("Activating default unit: %s", arg_default_unit);
1043 if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) {
1044 log_error("Failed to load default target: %s", bus_error(&error, r));
1045 dbus_error_free(&error);
1046 } else if (target->meta.load_state != UNIT_LOADED)
1047 log_error("Failed to load default target: %s", strerror(-target->meta.load_error));
1049 if (!target || target->meta.load_state != UNIT_LOADED) {
1050 log_info("Trying to load rescue target...");
1052 if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) {
1053 log_error("Failed to load rescue target: %s", bus_error(&error, r));
1054 dbus_error_free(&error);
1056 } else if (target->meta.load_state != UNIT_LOADED) {
1057 log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error));
1062 if (arg_action == ACTION_TEST) {
1063 printf("-> By units:\n");
1064 manager_dump_units(m, stdout, "\t");
1067 if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) {
1068 log_error("Failed to start default target: %s", bus_error(&error, r));
1069 dbus_error_free(&error);
1073 if (arg_action == ACTION_TEST) {
1074 printf("-> By jobs:\n");
1075 manager_dump_jobs(m, stdout, "\t");
1076 retval = EXIT_SUCCESS;
1082 if ((r = manager_loop(m)) < 0) {
1083 log_error("Failed to run mainloop: %s", strerror(-r));
1087 switch (m->exit_code) {
1090 retval = EXIT_SUCCESS;
1094 case MANAGER_RELOAD:
1095 log_info("Reloading.");
1096 if ((r = manager_reload(m)) < 0)
1097 log_error("Failed to reload: %s", strerror(-r));
1100 case MANAGER_REEXECUTE:
1101 if (prepare_reexecute(m, &serialization, &fds) < 0)
1105 log_notice("Reexecuting.");
1109 assert_not_reached("Unknown exit code.");
1117 free(arg_default_unit);
1125 const char *args[15];
1129 assert(serialization);
1132 args[i++] = SYSTEMD_BINARY_PATH;
1134 args[i++] = "--log-level";
1135 args[i++] = log_level_to_string(log_get_max_level());
1137 args[i++] = "--log-target";
1138 args[i++] = log_target_to_string(log_get_target());
1140 if (arg_running_as == MANAGER_SYSTEM)
1141 args[i++] = "--system";
1143 args[i++] = "--session";
1146 args[i++] = "--dump-core";
1148 if (arg_crash_shell)
1149 args[i++] = "--crash-shell";
1151 if (arg_confirm_spawn)
1152 args[i++] = "--confirm-spawn";
1154 if (arg_show_status)
1155 args[i++] = "--show-status=1";
1157 args[i++] = "--show-status=0";
1159 if (arg_sysv_console)
1160 args[i++] = "--sysv-console=1";
1162 args[i++] = "--sysv-console=0";
1164 snprintf(sfd, sizeof(sfd), "%i", fileno(serialization));
1167 args[i++] = "--deserialize";
1172 assert(i <= ELEMENTSOF(args));
1174 execv(args[0], (char* const*) args);
1176 log_error("Failed to reexecute: %m");
1180 fclose(serialization);