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 "locale-setup.h"
42 #include "load-fragment.h"
45 #include "conf-parser.h"
46 #include "bus-errors.h"
55 ACTION_DUMP_CONFIGURATION_ITEMS,
57 } arg_action = ACTION_RUN;
59 static char *arg_default_unit = NULL;
60 static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID;
62 static bool arg_dump_core = true;
63 static bool arg_crash_shell = false;
64 static int arg_crash_chvt = -1;
65 static bool arg_confirm_spawn = false;
66 static bool arg_show_status = true;
67 static bool arg_sysv_console = true;
68 static bool arg_mount_auto = true;
69 static bool arg_swap_auto = true;
70 static char *arg_console = NULL;
72 static FILE* serialization = NULL;
74 _noreturn_ static void freeze(void) {
79 static void nop_handler(int sig) {
82 _noreturn_ static void crash(int sig) {
85 log_error("Caught <%s>, not dumping core.", signal_to_string(sig));
90 /* We want to wait for the core process, hence let's enable SIGCHLD */
92 sa.sa_handler = nop_handler;
93 sa.sa_flags = SA_NOCLDSTOP|SA_RESTART;
94 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
96 if ((pid = fork()) < 0)
97 log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno));
102 /* Enable default signal handler for core dump */
104 sa.sa_handler = SIG_DFL;
105 assert_se(sigaction(sig, &sa, NULL) == 0);
107 /* Don't limit the core dump size */
109 rl.rlim_cur = RLIM_INFINITY;
110 rl.rlim_max = RLIM_INFINITY;
111 setrlimit(RLIMIT_CORE, &rl);
113 /* Just to be sure... */
114 assert_se(chdir("/") == 0);
116 /* Raise the signal again */
119 assert_not_reached("We shouldn't be here...");
126 /* Order things nicely. */
127 if ((r = wait_for_terminate(pid, &status)) < 0)
128 log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r));
129 else if (status.si_code != CLD_DUMPED)
130 log_error("Caught <%s>, core dump failed.", signal_to_string(sig));
132 log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid);
137 chvt(arg_crash_chvt);
139 if (arg_crash_shell) {
143 log_info("Executing crash shell in 10s...");
146 /* Let the kernel reap children for us */
148 sa.sa_handler = SIG_IGN;
149 sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART;
150 assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
152 if ((pid = fork()) < 0)
153 log_error("Failed to fork off crash shell: %s", strerror(errno));
157 if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0)
158 log_error("Failed to acquire terminal: %s", strerror(-fd));
159 else if ((r = make_stdio(fd)) < 0)
160 log_error("Failed to duplicate terminal fd: %s", strerror(-r));
162 execl("/bin/sh", "/bin/sh", NULL);
164 log_error("execl() failed: %s", strerror(errno));
168 log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid);
171 log_info("Freezing execution.");
175 static void install_crash_handler(void) {
180 sa.sa_handler = crash;
181 sa.sa_flags = SA_NODEFER;
183 sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1);
186 static int make_null_stdio(void) {
189 if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) {
190 log_error("Failed to open /dev/null: %m");
194 if ((r = make_stdio(null_fd)) < 0)
195 log_warning("Failed to dup2() device: %s", strerror(-r));
200 static int console_setup(bool do_reset) {
203 /* If we are init, we connect stdin/stdout/stderr to /dev/null
204 * and make sure we don't have a controlling tty. */
211 if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) {
212 log_error("Failed to open /dev/console: %s", strerror(-tty_fd));
216 if ((r = reset_terminal(tty_fd)) < 0)
217 log_error("Failed to reset /dev/console: %s", strerror(-r));
219 close_nointr_nofail(tty_fd);
223 static int set_default_unit(const char *u) {
228 if (!(c = strdup(u)))
231 free(arg_default_unit);
232 arg_default_unit = c;
236 static int parse_proc_cmdline_word(const char *word) {
238 static const char * const rlmap[] = {
239 "emergency", SPECIAL_EMERGENCY_TARGET,
240 "single", SPECIAL_RESCUE_TARGET,
241 "-s", SPECIAL_RESCUE_TARGET,
242 "s", SPECIAL_RESCUE_TARGET,
243 "S", SPECIAL_RESCUE_TARGET,
244 "1", SPECIAL_RESCUE_TARGET,
245 "2", SPECIAL_RUNLEVEL2_TARGET,
246 "3", SPECIAL_RUNLEVEL3_TARGET,
247 "4", SPECIAL_RUNLEVEL4_TARGET,
248 "5", SPECIAL_RUNLEVEL5_TARGET,
253 if (startswith(word, "systemd.unit="))
254 return set_default_unit(word + 13);
256 else if (startswith(word, "systemd.log_target=")) {
258 if (log_set_target_from_string(word + 19) < 0)
259 log_warning("Failed to parse log target %s. Ignoring.", word + 19);
261 } else if (startswith(word, "systemd.log_level=")) {
263 if (log_set_max_level_from_string(word + 18) < 0)
264 log_warning("Failed to parse log level %s. Ignoring.", word + 18);
266 } else if (startswith(word, "systemd.log_color=")) {
268 if (log_show_color_from_string(word + 18) < 0)
269 log_warning("Failed to parse log color setting %s. Ignoring.", word + 18);
271 } else if (startswith(word, "systemd.log_location=")) {
273 if (log_show_location_from_string(word + 21) < 0)
274 log_warning("Failed to parse log location setting %s. Ignoring.", word + 21);
276 } else if (startswith(word, "systemd.dump_core=")) {
279 if ((r = parse_boolean(word + 18)) < 0)
280 log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18);
284 } else if (startswith(word, "systemd.crash_shell=")) {
287 if ((r = parse_boolean(word + 20)) < 0)
288 log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20);
292 } else if (startswith(word, "systemd.confirm_spawn=")) {
295 if ((r = parse_boolean(word + 22)) < 0)
296 log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22);
298 arg_confirm_spawn = r;
300 } else if (startswith(word, "systemd.crash_chvt=")) {
303 if (safe_atoi(word + 19, &k) < 0)
304 log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19);
308 } else if (startswith(word, "systemd.show_status=")) {
311 if ((r = parse_boolean(word + 20)) < 0)
312 log_warning("Failed to parse show status switch %s, Ignoring.", word + 20);
316 } else if (startswith(word, "systemd.sysv_console=")) {
319 if ((r = parse_boolean(word + 21)) < 0)
320 log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20);
322 arg_sysv_console = r;
324 } else if (startswith(word, "systemd.")) {
326 log_warning("Unknown kernel switch %s. Ignoring.", word);
328 log_info("Supported kernel switches:\n"
329 "systemd.unit=UNIT Default unit to start\n"
330 "systemd.dump_core=0|1 Dump core on crash\n"
331 "systemd.crash_shell=0|1 Run shell on crash\n"
332 "systemd.crash_chvt=N Change to VT #N on crash\n"
333 "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
334 "systemd.show_status=0|1 Show status updates on the console during bootup\n"
335 "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
336 "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n"
338 "systemd.log_level=LEVEL Log level\n"
339 "systemd.log_color=0|1 Highlight important log messages\n"
340 "systemd.log_location=0|1 Include code location in log messages\n");
342 } else if (startswith(word, "console=")) {
350 /* Ignore the console setting if set to a VT */
352 !startswith(k, "tty") ||
353 k[3+strspn(k+3, "0123456789")] != 0) {
355 if (!(w = strndup(k, l)))
362 } else if (streq(word, "quiet")) {
363 arg_show_status = false;
364 arg_sysv_console = false;
368 /* SysV compatibility */
369 for (i = 0; i < ELEMENTSOF(rlmap); i += 2)
370 if (streq(word, rlmap[i]))
371 return set_default_unit(rlmap[i+1]);
377 static int config_parse_level(
378 const char *filename,
390 log_set_max_level_from_string(rvalue);
394 static int config_parse_target(
395 const char *filename,
407 log_set_target_from_string(rvalue);
411 static int config_parse_color(
412 const char *filename,
424 log_show_color_from_string(rvalue);
428 static int config_parse_location(
429 const char *filename,
441 log_show_location_from_string(rvalue);
445 static int config_parse_cpu_affinity(
446 const char *filename,
464 FOREACH_WORD_QUOTED(w, l, rvalue, state) {
469 if (!(t = strndup(w, l)))
472 r = safe_atou(t, &cpu);
476 if (!(c = cpu_set_malloc(&ncpus)))
479 if (r < 0 || cpu >= ncpus) {
480 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue);
485 CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c);
489 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0)
490 log_warning("Failed to set CPU affinity: %m");
498 static int parse_config_file(void) {
500 const ConfigItem items[] = {
501 { "LogLevel", config_parse_level, NULL, "Manager" },
502 { "LogTarget", config_parse_target, NULL, "Manager" },
503 { "LogColor", config_parse_color, NULL, "Manager" },
504 { "LogLocation", config_parse_location, NULL, "Manager" },
505 { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" },
506 { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" },
507 { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" },
508 { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" },
509 { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" },
510 { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" },
511 { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" },
512 { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" },
513 { NULL, NULL, NULL, NULL }
516 static const char * const sections[] = {
525 fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : SESSION_CONFIG_FILE;
527 if (!(f = fopen(fn, "re"))) {
531 log_warning("Failed to open configuration file '%s': %m", fn);
535 if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0)
536 log_warning("Failed to parse configuration file: %s", strerror(-r));
543 static int parse_proc_cmdline(void) {
550 if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) {
551 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r));
555 FOREACH_WORD_QUOTED(w, l, line, state) {
558 if (!(word = strndup(w, l))) {
563 r = parse_proc_cmdline_word(word);
577 static int parse_argv(int argc, char *argv[]) {
580 ARG_LOG_LEVEL = 0x100,
588 ARG_DUMP_CONFIGURATION_ITEMS,
598 static const struct option options[] = {
599 { "log-level", required_argument, NULL, ARG_LOG_LEVEL },
600 { "log-target", required_argument, NULL, ARG_LOG_TARGET },
601 { "log-color", optional_argument, NULL, ARG_LOG_COLOR },
602 { "log-location", optional_argument, NULL, ARG_LOG_LOCATION },
603 { "unit", required_argument, NULL, ARG_UNIT },
604 { "system", no_argument, NULL, ARG_SYSTEM },
605 { "session", no_argument, NULL, ARG_SESSION },
606 { "test", no_argument, NULL, ARG_TEST },
607 { "help", no_argument, NULL, 'h' },
608 { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS },
609 { "dump-core", no_argument, NULL, ARG_DUMP_CORE },
610 { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL },
611 { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN },
612 { "show-status", optional_argument, NULL, ARG_SHOW_STATUS },
613 { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE },
614 { "deserialize", required_argument, NULL, ARG_DESERIALIZE },
615 { "introspect", optional_argument, NULL, ARG_INTROSPECT },
624 while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0)
629 if ((r = log_set_max_level_from_string(optarg)) < 0) {
630 log_error("Failed to parse log level %s.", optarg);
638 if ((r = log_set_target_from_string(optarg)) < 0) {
639 log_error("Failed to parse log target %s.", optarg);
648 if ((r = log_show_color_from_string(optarg)) < 0) {
649 log_error("Failed to parse log color setting %s.", optarg);
653 log_show_color(true);
657 case ARG_LOG_LOCATION:
660 if ((r = log_show_location_from_string(optarg)) < 0) {
661 log_error("Failed to parse log location setting %s.", optarg);
665 log_show_location(true);
671 if ((r = set_default_unit(optarg)) < 0) {
672 log_error("Failed to set default unit %s: %s", optarg, strerror(-r));
679 arg_running_as = MANAGER_SYSTEM;
683 arg_running_as = MANAGER_SESSION;
687 arg_action = ACTION_TEST;
690 case ARG_DUMP_CONFIGURATION_ITEMS:
691 arg_action = ACTION_DUMP_CONFIGURATION_ITEMS;
695 arg_dump_core = true;
698 case ARG_CRASH_SHELL:
699 arg_crash_shell = true;
702 case ARG_CONFIRM_SPAWN:
703 arg_confirm_spawn = true;
706 case ARG_SHOW_STATUS:
709 if ((r = parse_boolean(optarg)) < 0) {
710 log_error("Failed to show status boolean %s.", optarg);
715 arg_show_status = true;
718 case ARG_SYSV_CONSOLE:
721 if ((r = parse_boolean(optarg)) < 0) {
722 log_error("Failed to SysV console boolean %s.", optarg);
725 arg_sysv_console = r;
727 arg_sysv_console = true;
730 case ARG_DESERIALIZE: {
734 if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) {
735 log_error("Failed to parse deserialize option %s.", optarg);
739 if (!(f = fdopen(fd, "r"))) {
740 log_error("Failed to open serialization fd: %m");
745 fclose(serialization);
752 case ARG_INTROSPECT: {
753 const char * const * i = NULL;
755 for (i = bus_interface_table; *i; i += 2)
756 if (!optarg || streq(i[0], optarg)) {
757 fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
760 fputs("</node>\n", stdout);
767 log_error("Unknown interface %s.", optarg);
769 arg_action = ACTION_DONE;
774 arg_action = ACTION_HELP;
778 log_set_max_level(LOG_DEBUG);
785 log_error("Unknown option code %c", c);
789 /* PID 1 will get the kernel arguments as parameters, which we
790 * ignore and unconditionally read from
791 * /proc/cmdline. However, we need to ignore those arguments
793 if (arg_running_as != MANAGER_SYSTEM && optind < argc) {
794 log_error("Excess arguments.");
801 static int help(void) {
803 printf("%s [OPTIONS...]\n\n"
804 "Starts up and maintains the system or a session.\n\n"
805 " -h --help Show this help\n"
806 " --test Determine startup sequence, dump it and exit\n"
807 " --dump-configuration-items Dump understood unit configuration items\n"
808 " --introspect[=INTERFACE] Extract D-Bus interface data\n"
809 " --unit=UNIT Set default unit\n"
810 " --system Run a system instance, even if PID != 1\n"
811 " --session Run a session instance\n"
812 " --dump-core Dump core on crash\n"
813 " --crash-shell Run shell on crash\n"
814 " --confirm-spawn Ask for confirmation when spawning processes\n"
815 " --show-status[=0|1] Show status updates on the console during bootup\n"
816 " --sysv-console[=0|1] Connect output of SysV scripts to console\n"
817 " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
818 " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
819 " --log-color[=0|1] Highlight important log messages\n"
820 " --log-location[=0|1] Include code location in log messages\n",
821 program_invocation_short_name);
826 static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) {
835 if ((r = manager_open_serialization(m, &f)) < 0) {
836 log_error("Failed to create serialization faile: %s", strerror(-r));
840 if (!(fds = fdset_new())) {
842 log_error("Failed to allocate fd set: %s", strerror(-r));
846 if ((r = manager_serialize(m, f, fds)) < 0) {
847 log_error("Failed to serialize state: %s", strerror(-r));
851 if (fseeko(f, 0, SEEK_SET) < 0) {
852 log_error("Failed to rewind serialization fd: %m");
856 if ((r = fd_cloexec(fileno(f), false)) < 0) {
857 log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r));
861 if ((r = fdset_cloexec(fds, false)) < 0) {
862 log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r));
880 int main(int argc, char *argv[]) {
882 int r, retval = EXIT_FAILURE;
884 bool reexecute = false;
886 if (getpid() != 1 && strstr(program_invocation_short_name, "init")) {
887 /* This is compatbility support for SysV, where
888 * calling init as a user is identical to telinit. */
891 execv(SYSTEMCTL_BINARY_PATH, argv);
892 log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m");
896 log_show_color(isatty(STDERR_FILENO) > 0);
897 log_show_location(false);
898 log_set_max_level(LOG_INFO);
901 arg_running_as = MANAGER_SYSTEM;
902 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG);
904 if (label_init() < 0)
907 arg_running_as = MANAGER_SESSION;
908 log_set_target(LOG_TARGET_CONSOLE);
911 if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0)
914 /* Mount /proc, /sys and friends, so that /proc/cmdline and
915 * /proc/$PID/fd is available. */
916 if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
917 if (mount_setup() < 0)
920 /* Reset all signal handlers. */
921 assert_se(reset_all_signal_handlers() == 0);
923 /* If we are init, we can block sigkill. Yay. */
924 ignore_signals(SIGNALS_IGNORE, -1);
926 if (parse_config_file() < 0)
929 if (arg_running_as == MANAGER_SYSTEM)
930 if (parse_proc_cmdline() < 0)
933 log_parse_environment();
935 if (parse_argv(argc, argv) < 0)
938 if (arg_action == ACTION_HELP) {
941 } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) {
942 unit_dump_config_items(stdout);
943 retval = EXIT_SUCCESS;
945 } else if (arg_action == ACTION_DONE) {
946 retval = EXIT_SUCCESS;
950 assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST);
952 /* Remember open file descriptors for later deserialization */
954 if ((r = fdset_new_fill(&fds)) < 0) {
955 log_error("Failed to allocate fd set: %s", strerror(-r));
959 assert_se(fdset_remove(fds, fileno(serialization)) >= 0);
961 close_all_fds(NULL, 0);
963 /* Set up PATH unless it is already set */
965 "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
966 arg_running_as == MANAGER_SYSTEM);
968 /* Move out of the way, so that we won't block unmounts */
969 assert_se(chdir("/") == 0);
971 if (arg_running_as == MANAGER_SYSTEM) {
972 /* Become a session leader if we aren't one yet. */
975 /* Disable the umask logic */
979 /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
980 dbus_connection_set_change_sigpipe(FALSE);
982 /* Reset the console, but only if this is really init and we
983 * are freshly booted */
984 if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) {
985 console_setup(getpid() == 1 && !serialization);
989 /* Open the logging devices, if possible and necessary */
992 /* Make sure we leave a core dump without panicing the
995 install_crash_handler();
997 log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG,
998 PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as));
1000 if (arg_running_as == MANAGER_SYSTEM && !serialization) {
1003 if (arg_show_status)
1010 mkdir_p("/dev/.systemd/ask-password/", 0755);
1013 if ((r = manager_new(arg_running_as, &m)) < 0) {
1014 log_error("Failed to allocate manager object: %s", strerror(-r));
1018 m->confirm_spawn = arg_confirm_spawn;
1019 m->show_status = arg_show_status;
1020 m->sysv_console = arg_sysv_console;
1021 m->mount_auto = arg_mount_auto;
1022 m->swap_auto = arg_swap_auto;
1025 manager_set_console(m, arg_console);
1027 if ((r = manager_startup(m, serialization, fds)) < 0)
1028 log_error("Failed to fully start up daemon: %s", strerror(-r));
1031 /* This will close all file descriptors that were opened, but
1032 * not claimed by any unit. */
1038 if (serialization) {
1039 fclose(serialization);
1040 serialization = NULL;
1043 Unit *target = NULL;
1045 dbus_error_init(&error);
1047 log_debug("Activating default unit: %s", arg_default_unit);
1049 if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) {
1050 log_error("Failed to load default target: %s", bus_error(&error, r));
1051 dbus_error_free(&error);
1052 } else if (target->meta.load_state != UNIT_LOADED)
1053 log_error("Failed to load default target: %s", strerror(-target->meta.load_error));
1055 if (!target || target->meta.load_state != UNIT_LOADED) {
1056 log_info("Trying to load rescue target...");
1058 if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) {
1059 log_error("Failed to load rescue target: %s", bus_error(&error, r));
1060 dbus_error_free(&error);
1062 } else if (target->meta.load_state != UNIT_LOADED) {
1063 log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error));
1068 if (arg_action == ACTION_TEST) {
1069 printf("-> By units:\n");
1070 manager_dump_units(m, stdout, "\t");
1073 if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) {
1074 log_error("Failed to start default target: %s", bus_error(&error, r));
1075 dbus_error_free(&error);
1079 if (arg_action == ACTION_TEST) {
1080 printf("-> By jobs:\n");
1081 manager_dump_jobs(m, stdout, "\t");
1082 retval = EXIT_SUCCESS;
1088 if ((r = manager_loop(m)) < 0) {
1089 log_error("Failed to run mainloop: %s", strerror(-r));
1093 switch (m->exit_code) {
1096 retval = EXIT_SUCCESS;
1100 case MANAGER_RELOAD:
1101 log_info("Reloading.");
1102 if ((r = manager_reload(m)) < 0)
1103 log_error("Failed to reload: %s", strerror(-r));
1106 case MANAGER_REEXECUTE:
1107 if (prepare_reexecute(m, &serialization, &fds) < 0)
1111 log_notice("Reexecuting.");
1115 assert_not_reached("Unknown exit code.");
1123 free(arg_default_unit);
1131 const char *args[15];
1135 assert(serialization);
1138 args[i++] = SYSTEMD_BINARY_PATH;
1140 args[i++] = "--log-level";
1141 args[i++] = log_level_to_string(log_get_max_level());
1143 args[i++] = "--log-target";
1144 args[i++] = log_target_to_string(log_get_target());
1146 if (arg_running_as == MANAGER_SYSTEM)
1147 args[i++] = "--system";
1149 args[i++] = "--session";
1152 args[i++] = "--dump-core";
1154 if (arg_crash_shell)
1155 args[i++] = "--crash-shell";
1157 if (arg_confirm_spawn)
1158 args[i++] = "--confirm-spawn";
1160 if (arg_show_status)
1161 args[i++] = "--show-status=1";
1163 args[i++] = "--show-status=0";
1165 if (arg_sysv_console)
1166 args[i++] = "--sysv-console=1";
1168 args[i++] = "--sysv-console=0";
1170 snprintf(sfd, sizeof(sfd), "%i", fileno(serialization));
1173 args[i++] = "--deserialize";
1178 assert(i <= ELEMENTSOF(args));
1180 execv(args[0], (char* const*) args);
1182 log_error("Failed to reexecute: %m");
1186 fclose(serialization);