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...");
125 /* Order things nicely. */
126 if ((r = wait_for_terminate(pid, &status)) < 0)
127 log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r));
128 else if (status.si_code != CLD_DUMPED)
129 log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
131 log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid);
136 chvt(arg_crash_chvt);
138 if (arg_crash_shell) {
142 log_info("Executing crash shell in 10s...");
145 /* Let the kernel reap children for us */
147 sa.sa_handler = SIG_IGN;
148 sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART;
149 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
151 if ((pid = fork()) < 0)
152 log_error("Failed to fork off crash shell: %s", strerror(errno));
156 if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0)
157 log_error("Failed to acquire terminal: %s", strerror(-fd));
158 else if ((r = make_stdio(fd)) < 0)
159 log_error("Failed to duplicate terminal fd: %s", strerror(-r));
161 execl("/bin/sh", "/bin/sh", NULL);
163 log_error("execl() failed: %s", strerror(errno));
167 log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid);
170 log_info("Freezing execution.");
174 static void install_crash_handler(void) {
179 sa.sa_handler = crash;
180 sa.sa_flags = SA_NODEFER;
182 sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
185 static int make_null_stdio(void) {
188 if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) {
189 log_error("Failed to open /dev/null: %m");
193 if ((r = make_stdio(null_fd)) < 0)
194 log_warning("Failed to dup2() device: %s", strerror(-r));
199 static int console_setup(bool do_reset) {
202 /* If we are init, we connect stdin/stdout/stderr to /dev/null
203 * and make sure we don't have a controlling tty. */
210 if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) {
211 log_error("Failed to open /dev/console: %s", strerror(-tty_fd));
215 if ((r = reset_terminal(tty_fd)) < 0)
216 log_error("Failed to reset /dev/console: %s", strerror(-r));
218 close_nointr_nofail(tty_fd);
222 static int set_default_unit(const char *u) {
227 if (!(c = strdup(u)))
230 free(arg_default_unit);
231 arg_default_unit = c;
235 static int parse_proc_cmdline_word(const char *word) {
237 static const char * const rlmap[] = {
238 "emergency", SPECIAL_EMERGENCY_TARGET,
239 "single", SPECIAL_RESCUE_TARGET,
240 "-s", SPECIAL_RESCUE_TARGET,
241 "s", SPECIAL_RESCUE_TARGET,
242 "S", SPECIAL_RESCUE_TARGET,
243 "1", SPECIAL_RESCUE_TARGET,
244 "2", SPECIAL_RUNLEVEL2_TARGET,
245 "3", SPECIAL_RUNLEVEL3_TARGET,
246 "4", SPECIAL_RUNLEVEL4_TARGET,
247 "5", SPECIAL_RUNLEVEL5_TARGET,
252 if (startswith(word, "systemd.unit="))
253 return set_default_unit(word + 13);
255 else if (startswith(word, "systemd.log_target=")) {
257 if (log_set_target_from_string(word + 19) < 0)
258 log_warning("Failed to parse log target %s. Ignoring.", word + 19);
260 } else if (startswith(word, "systemd.log_level=")) {
262 if (log_set_max_level_from_string(word + 18) < 0)
263 log_warning("Failed to parse log level %s. Ignoring.", word + 18);
265 } else if (startswith(word, "systemd.log_color=")) {
267 if (log_show_color_from_string(word + 18) < 0)
268 log_warning("Failed to parse log color setting %s. Ignoring.", word + 18);
270 } else if (startswith(word, "systemd.log_location=")) {
272 if (log_show_location_from_string(word + 21) < 0)
273 log_warning("Failed to parse log location setting %s. Ignoring.", word + 21);
275 } else if (startswith(word, "systemd.dump_core=")) {
278 if ((r = parse_boolean(word + 18)) < 0)
279 log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18);
283 } else if (startswith(word, "systemd.crash_shell=")) {
286 if ((r = parse_boolean(word + 20)) < 0)
287 log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20);
291 } else if (startswith(word, "systemd.confirm_spawn=")) {
294 if ((r = parse_boolean(word + 22)) < 0)
295 log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22);
297 arg_confirm_spawn = r;
299 } else if (startswith(word, "systemd.crash_chvt=")) {
302 if (safe_atoi(word + 19, &k) < 0)
303 log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19);
307 } else if (startswith(word, "systemd.show_status=")) {
310 if ((r = parse_boolean(word + 20)) < 0)
311 log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
315 } else if (startswith(word, "systemd.sysv_console=")) {
318 if ((r = parse_boolean(word + 21)) < 0)
319 log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20);
321 arg_sysv_console = r;
323 } else if (startswith(word, "systemd.")) {
325 log_warning("Unknown kernel switch %s. Ignoring.", word);
327 log_info("Supported kernel switches:\n"
328 "systemd.unit=UNIT Default unit to start\n"
329 "systemd.dump_core=0|1 Dump core on crash\n"
330 "systemd.crash_shell=0|1 Run shell on crash\n"
331 "systemd.crash_chvt=N Change to VT #N on crash\n"
332 "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
333 "systemd.show_status=0|1 Show status updates on the console during bootup\n"
334 "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
335 "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n"
337 "systemd.log_level=LEVEL Log level\n"
338 "systemd.log_color=0|1 Highlight important log messages\n"
339 "systemd.log_location=0|1 Include code location in log messages\n");
341 } else if (startswith(word, "console=")) {
349 /* Ignore the console setting if set to a VT */
351 !startswith(k, "tty") ||
352 k[3+strspn(k+3, "0123456789")] != 0) {
354 if (!(w = strndup(k, l)))
361 } else if (streq(word, "quiet")) {
362 arg_show_status = false;
363 arg_sysv_console = false;
367 /* SysV compatibility */
368 for (i = 0; i < ELEMENTSOF(rlmap); i += 2)
369 if (streq(word, rlmap[i]))
370 return set_default_unit(rlmap[i+1]);
376 static int config_parse_level(
377 const char *filename,
389 log_set_max_level_from_string(rvalue);
393 static int config_parse_target(
394 const char *filename,
406 log_set_target_from_string(rvalue);
410 static int config_parse_color(
411 const char *filename,
423 log_show_color_from_string(rvalue);
427 static int config_parse_location(
428 const char *filename,
440 log_show_location_from_string(rvalue);
444 static int config_parse_cpu_affinity(
445 const char *filename,
463 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
468 if (!(t = strndup(w, l)))
471 r = safe_atou(t, &cpu);
475 if (!(c = cpu_set_malloc(&ncpus)))
478 if (r < 0 || cpu >= ncpus) {
479 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
484 CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c);
488 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
489 log_warning("Failed to set CPU affinity: %m");
497 static int parse_config_file(void) {
499 const ConfigItem items[] = {
500 { "LogLevel", config_parse_level, NULL, "Manager" },
501 { "LogTarget", config_parse_target, NULL, "Manager" },
502 { "LogColor", config_parse_color, NULL, "Manager" },
503 { "LogLocation", config_parse_location, NULL, "Manager" },
504 { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
505 { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
506 { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
507 { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
508 { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
509 { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
510 { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
511 { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
512 { NULL, NULL, NULL, NULL }
515 static const char * const sections[] = {
524 fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : SESSION_CONFIG_FILE;
526 if (!(f = fopen(fn, "re"))) {
530 log_warning("Failed to open configuration file '%s': %m", fn);
534 if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0)
535 log_warning("Failed to parse configuration file: %s", strerror(-r));
542 static int parse_proc_cmdline(void) {
549 if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
550 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
554 FOREACH_WORD_QUOTED(w, l, line, state) {
557 if (!(word = strndup(w, l))) {
562 r = parse_proc_cmdline_word(word);
576 static int parse_argv(int argc, char *argv[]) {
579 ARG_LOG_LEVEL = 0x100,
587 ARG_DUMP_CONFIGURATION_ITEMS,
597 static const struct option options[] = {
598 { "log-level", required_argument, NULL, ARG_LOG_LEVEL },
599 { "log-target", required_argument, NULL, ARG_LOG_TARGET },
600 { "log-color", optional_argument, NULL, ARG_LOG_COLOR },
601 { "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
602 { "unit", required_argument, NULL, ARG_UNIT },
603 { "system", no_argument, NULL, ARG_SYSTEM },
604 { "session", no_argument, NULL, ARG_SESSION },
605 { "test", no_argument, NULL, ARG_TEST },
606 { "help", no_argument, NULL, 'h' },
607 { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
608 { "dump-core", no_argument, NULL, ARG_DUMP_CORE },
609 { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL },
610 { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
611 { "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
612 { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE },
613 { "deserialize", required_argument, NULL, ARG_DESERIALIZE },
614 { "introspect", optional_argument, NULL, ARG_INTROSPECT },
623 while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0)
628 if ((r = log_set_max_level_from_string(optarg)) < 0) {
629 log_error("Failed to parse log level %s.", optarg);
637 if ((r = log_set_target_from_string(optarg)) < 0) {
638 log_error("Failed to parse log target %s.", optarg);
647 if ((r = log_show_color_from_string(optarg)) < 0) {
648 log_error("Failed to parse log color setting %s.", optarg);
652 log_show_color(true);
656 case ARG_LOG_LOCATION:
659 if ((r = log_show_location_from_string(optarg)) < 0) {
660 log_error("Failed to parse log location setting %s.", optarg);
664 log_show_location(true);
670 if ((r = set_default_unit(optarg)) < 0) {
671 log_error("Failed to set default unit %s: %s", optarg, strerror(-r));
678 arg_running_as = MANAGER_SYSTEM;
682 arg_running_as = MANAGER_SESSION;
686 arg_action = ACTION_TEST;
689 case ARG_DUMP_CONFIGURATION_ITEMS:
690 arg_action = ACTION_DUMP_CONFIGURATION_ITEMS;
694 arg_dump_core = true;
697 case ARG_CRASH_SHELL:
698 arg_crash_shell = true;
701 case ARG_CONFIRM_SPAWN:
702 arg_confirm_spawn = true;
705 case ARG_SHOW_STATUS:
708 if ((r = parse_boolean(optarg)) < 0) {
709 log_error("Failed to show status boolean %s.", optarg);
714 arg_show_status = true;
717 case ARG_SYSV_CONSOLE:
720 if ((r = parse_boolean(optarg)) < 0) {
721 log_error("Failed to SysV console boolean %s.", optarg);
724 arg_sysv_console = r;
726 arg_sysv_console = true;
729 case ARG_DESERIALIZE: {
733 if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) {
734 log_error("Failed to parse deserialize option %s.", optarg);
738 if (!(f = fdopen(fd, "r"))) {
739 log_error("Failed to open serialization fd: %m");
744 fclose(serialization);
751 case ARG_INTROSPECT: {
752 const char * const * i = NULL;
754 for (i = bus_interface_table; *i; i += 2)
755 if (!optarg || streq(i[0], optarg)) {
756 fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
759 fputs("</node>\n", stdout);
766 log_error("Unknown interface %s.", optarg);
768 arg_action = ACTION_DONE;
773 arg_action = ACTION_HELP;
777 log_set_max_level(LOG_DEBUG);
784 log_error("Unknown option code %c", c);
788 /* PID 1 will get the kernel arguments as parameters, which we
789 * ignore and unconditionally read from
790 * /proc/cmdline. However, we need to ignore those arguments
792 if (arg_running_as != MANAGER_SYSTEM && optind < argc) {
793 log_error("Excess arguments.");
800 static int help(void) {
802 printf("%s [OPTIONS...]\n\n"
803 "Starts up and maintains the system or a session.\n\n"
804 " -h --help Show this help\n"
805 " --test Determine startup sequence, dump it and exit\n"
806 " --dump-configuration-items Dump understood unit configuration items\n"
807 " --introspect[=INTERFACE] Extract D-Bus interface data\n"
808 " --unit=UNIT Set default unit\n"
809 " --system Run a system instance, even if PID != 1\n"
810 " --session Run a session instance\n"
811 " --dump-core Dump core on crash\n"
812 " --crash-shell Run shell on crash\n"
813 " --confirm-spawn Ask for confirmation when spawning processes\n"
814 " --show-status[=0|1] Show status updates on the console during bootup\n"
815 " --sysv-console[=0|1] Connect output of SysV scripts to console\n"
816 " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
817 " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
818 " --log-color[=0|1] Highlight important log messages\n"
819 " --log-location[=0|1] Include code location in log messages\n",
820 program_invocation_short_name);
825 static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) {
834 if ((r = manager_open_serialization(m, &f)) < 0) {
835 log_error("Failed to create serialization faile: %s", strerror(-r));
839 if (!(fds = fdset_new())) {
841 log_error("Failed to allocate fd set: %s", strerror(-r));
845 if ((r = manager_serialize(m, f, fds)) < 0) {
846 log_error("Failed to serialize state: %s", strerror(-r));
850 if (fseeko(f, 0, SEEK_SET) < 0) {
851 log_error("Failed to rewind serialization fd: %m");
855 if ((r = fd_cloexec(fileno(f), false)) < 0) {
856 log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r));
860 if ((r = fdset_cloexec(fds, false)) < 0) {
861 log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r));
879 int main(int argc, char *argv[]) {
881 int r, retval = EXIT_FAILURE;
883 bool reexecute = false;
885 if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
886 /* This is compatbility support for SysV, where
887 * calling init as a user is identical to telinit. */
890 execv(SYSTEMCTL_BINARY_PATH, argv);
891 log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m");
895 log_show_color(isatty(STDERR_FILENO) > 0);
896 log_show_location(false);
897 log_set_max_level(LOG_INFO);
900 arg_running_as = MANAGER_SYSTEM;
901 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
903 if (label_init() < 0)
906 arg_running_as = MANAGER_SESSION;
907 log_set_target(LOG_TARGET_CONSOLE);
910 if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0)
913 /* Mount /proc, /sys and friends, so that /proc/cmdline and
914 * /proc/$PID/fd is available. */
915 if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
916 if (mount_setup() < 0)
919 /* Reset all signal handlers. */
920 assert_se(reset_all_signal_handlers() == 0);
922 /* If we are init, we can block sigkill. Yay. */
923 ignore_signals(SIGNALS_IGNORE, -1);
925 if (parse_config_file() < 0)
928 if (arg_running_as == MANAGER_SYSTEM)
929 if (parse_proc_cmdline() < 0)
932 log_parse_environment();
934 if (parse_argv(argc, argv) < 0)
937 if (arg_action == ACTION_HELP) {
940 } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
941 unit_dump_config_items(stdout);
942 retval = EXIT_SUCCESS;
944 } else if (arg_action == ACTION_DONE) {
945 retval = EXIT_SUCCESS;
949 assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST);
951 /* Remember open file descriptors for later deserialization */
953 if ((r = fdset_new_fill(&fds)) < 0) {
954 log_error("Failed to allocate fd set: %s", strerror(-r));
958 assert_se(fdset_remove(fds, fileno(serialization)) >= 0);
960 close_all_fds(NULL, 0);
962 /* Set up PATH unless it is already set */
964 "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
965 arg_running_as == MANAGER_SYSTEM);
967 /* Move out of the way, so that we won't block unmounts */
968 assert_se(chdir("/") == 0);
970 if (arg_running_as == MANAGER_SYSTEM) {
971 /* Become a session leader if we aren't one yet. */
974 /* Disable the umask logic */
978 /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
979 dbus_connection_set_change_sigpipe(FALSE);
981 /* Reset the console, but only if this is really init and we
982 * are freshly booted */
983 if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) {
984 console_setup(getpid() == 1 && !serialization);
988 /* Open the logging devices, if possible and necessary */
991 /* Make sure we leave a core dump without panicing the
994 install_crash_handler();
996 log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
997 PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
999 if (arg_running_as == MANAGER_SYSTEM && !serialization) {
1000 if (arg_show_status)
1008 if ((r = manager_new(arg_running_as, &m)) < 0) {
1009 log_error("Failed to allocate manager object: %s", strerror(-r));
1013 m->confirm_spawn = arg_confirm_spawn;
1014 m->show_status = arg_show_status;
1015 m->sysv_console = arg_sysv_console;
1016 m->mount_auto = arg_mount_auto;
1017 m->swap_auto = arg_swap_auto;
1020 manager_set_console(m, arg_console);
1022 if ((r = manager_startup(m, serialization, fds)) < 0)
1023 log_error("Failed to fully start up daemon: %s", strerror(-r));
1026 /* This will close all file descriptors that were opened, but
1027 * not claimed by any unit. */
1033 if (serialization) {
1034 fclose(serialization);
1035 serialization = NULL;
1038 Unit *target = NULL;
1040 dbus_error_init(&error);
1042 log_debug("Activating default unit: %s", arg_default_unit);
1044 if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) {
1045 log_error("Failed to load default target: %s", bus_error(&error, r));
1046 dbus_error_free(&error);
1047 } else if (target->meta.load_state != UNIT_LOADED)
1048 log_error("Failed to load default target: %s", strerror(-target->meta.load_error));
1050 if (!target || target->meta.load_state != UNIT_LOADED) {
1051 log_info("Trying to load rescue target...");
1053 if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) {
1054 log_error("Failed to load rescue target: %s", bus_error(&error, r));
1055 dbus_error_free(&error);
1057 } else if (target->meta.load_state != UNIT_LOADED) {
1058 log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error));
1063 if (arg_action == ACTION_TEST) {
1064 printf("-> By units:\n");
1065 manager_dump_units(m, stdout, "\t");
1068 if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) {
1069 log_error("Failed to start default target: %s", bus_error(&error, r));
1070 dbus_error_free(&error);
1074 if (arg_action == ACTION_TEST) {
1075 printf("-> By jobs:\n");
1076 manager_dump_jobs(m, stdout, "\t");
1077 retval = EXIT_SUCCESS;
1083 if ((r = manager_loop(m)) < 0) {
1084 log_error("Failed to run mainloop: %s", strerror(-r));
1088 switch (m->exit_code) {
1091 retval = EXIT_SUCCESS;
1095 case MANAGER_RELOAD:
1096 log_info("Reloading.");
1097 if ((r = manager_reload(m)) < 0)
1098 log_error("Failed to reload: %s", strerror(-r));
1101 case MANAGER_REEXECUTE:
1102 if (prepare_reexecute(m, &serialization, &fds) < 0)
1106 log_notice("Reexecuting.");
1110 assert_not_reached("Unknown exit code.");
1118 free(arg_default_unit);
1126 const char *args[15];
1130 assert(serialization);
1133 args[i++] = SYSTEMD_BINARY_PATH;
1135 args[i++] = "--log-level";
1136 args[i++] = log_level_to_string(log_get_max_level());
1138 args[i++] = "--log-target";
1139 args[i++] = log_target_to_string(log_get_target());
1141 if (arg_running_as == MANAGER_SYSTEM)
1142 args[i++] = "--system";
1144 args[i++] = "--session";
1147 args[i++] = "--dump-core";
1149 if (arg_crash_shell)
1150 args[i++] = "--crash-shell";
1152 if (arg_confirm_spawn)
1153 args[i++] = "--confirm-spawn";
1155 if (arg_show_status)
1156 args[i++] = "--show-status=1";
1158 args[i++] = "--show-status=0";
1160 if (arg_sysv_console)
1161 args[i++] = "--sysv-console=1";
1163 args[i++] = "--sysv-console=0";
1165 snprintf(sfd, sizeof(sfd), "%i", fileno(serialization));
1168 args[i++] = "--deserialize";
1173 assert(i <= ELEMENTSOF(args));
1175 execv(args[0], (char* const*) args);
1177 log_error("Failed to reexecute: %m");
1181 fclose(serialization);