1 /*-*- Mode: C; c-basic-offset: 8 -*-*/
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 "modprobe-setup.h"
42 #include "load-fragment.h"
45 #include "conf-parser.h"
46 #include "bus-errors.h"
53 ACTION_DUMP_CONFIGURATION_ITEMS
,
55 } arg_action
= ACTION_RUN
;
57 static char *arg_default_unit
= NULL
;
58 static char *arg_console
= 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_nomodules
= false;
66 static bool arg_show_status
= true;
67 static bool arg_sysv_console
= true;
69 static FILE* serialization
= NULL
;
71 _noreturn_
static void freeze(void) {
76 static void nop_handler(int sig
) {
79 _noreturn_
static void crash(int sig
) {
82 log_error("Caught <%s>, not dumping core.", signal_to_string(sig
));
87 /* We want to wait for the core process, hence let's enable SIGCHLD */
89 sa
.sa_handler
= nop_handler
;
90 sa
.sa_flags
= SA_NOCLDSTOP
|SA_RESTART
;
91 assert_se(sigaction(SIGCHLD
, &sa
, NULL
) == 0);
93 if ((pid
= fork()) < 0)
94 log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig
), strerror(errno
));
99 /* Enable default signal handler for core dump */
101 sa
.sa_handler
= SIG_DFL
;
102 assert_se(sigaction(sig
, &sa
, NULL
) == 0);
104 /* Don't limit the core dump size */
106 rl
.rlim_cur
= RLIM_INFINITY
;
107 rl
.rlim_max
= RLIM_INFINITY
;
108 setrlimit(RLIMIT_CORE
, &rl
);
110 /* Just to be sure... */
111 assert_se(chdir("/") == 0);
113 /* Raise the signal again */
116 assert_not_reached("We shouldn't be here...");
122 /* Order things nicely. */
123 if (waitpid(pid
, &status
, 0) < 0)
124 log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig
), strerror(errno
));
125 else if (!WCOREDUMP(status
))
126 log_error("Caught <%s>, core dump failed.", signal_to_string(sig
));
128 log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig
), (unsigned long) pid
);
133 chvt(arg_crash_chvt
);
135 if (arg_crash_shell
) {
139 log_info("Executing crash shell in 10s...");
142 /* Let the kernel reap children for us */
144 sa
.sa_handler
= SIG_IGN
;
145 sa
.sa_flags
= SA_NOCLDSTOP
|SA_NOCLDWAIT
|SA_RESTART
;
146 assert_se(sigaction(SIGCHLD
, &sa
, NULL
) == 0);
148 if ((pid
= fork()) < 0)
149 log_error("Failed to fork off crash shell: %s", strerror(errno
));
153 if ((fd
= acquire_terminal("/dev/console", false, true, true)) < 0)
154 log_error("Failed to acquire terminal: %s", strerror(-fd
));
155 else if ((r
= make_stdio(fd
)) < 0)
156 log_error("Failed to duplicate terminal fd: %s", strerror(-r
));
158 execl("/bin/sh", "/bin/sh", NULL
);
160 log_error("execl() failed: %s", strerror(errno
));
164 log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid
);
167 log_info("Freezing execution.");
171 static void install_crash_handler(void) {
176 sa
.sa_handler
= crash
;
177 sa
.sa_flags
= SA_NODEFER
;
179 sigaction_many(&sa
, SIGNALS_CRASH_HANDLER
, -1);
182 static int make_null_stdio(void) {
185 if ((null_fd
= open("/dev/null", O_RDWR
|O_NOCTTY
)) < 0) {
186 log_error("Failed to open /dev/null: %m");
190 if ((r
= make_stdio(null_fd
)) < 0)
191 log_warning("Failed to dup2() device: %s", strerror(-r
));
196 static int console_setup(bool do_reset
) {
199 /* If we are init, we connect stdin/stdout/stderr to /dev/null
200 * and make sure we don't have a controlling tty. */
207 if ((tty_fd
= open_terminal("/dev/console", O_WRONLY
|O_NOCTTY
|O_CLOEXEC
)) < 0) {
208 log_error("Failed to open /dev/console: %s", strerror(-tty_fd
));
212 if ((r
= reset_terminal(tty_fd
)) < 0)
213 log_error("Failed to reset /dev/console: %s", strerror(-r
));
215 close_nointr_nofail(tty_fd
);
219 static int set_default_unit(const char *u
) {
224 if (!(c
= strdup(u
)))
227 free(arg_default_unit
);
228 arg_default_unit
= c
;
232 static int parse_proc_cmdline_word(const char *word
) {
234 static const char * const rlmap
[] = {
235 "single", SPECIAL_RESCUE_TARGET
,
236 "-s", SPECIAL_RESCUE_TARGET
,
237 "s", SPECIAL_RESCUE_TARGET
,
238 "S", SPECIAL_RESCUE_TARGET
,
239 "1", SPECIAL_RESCUE_TARGET
,
240 "2", SPECIAL_RUNLEVEL2_TARGET
,
241 "3", SPECIAL_RUNLEVEL3_TARGET
,
242 "4", SPECIAL_RUNLEVEL4_TARGET
,
243 "5", SPECIAL_RUNLEVEL5_TARGET
246 if (startswith(word
, "systemd.unit="))
247 return set_default_unit(word
+ 13);
249 else if (startswith(word
, "systemd.log_target=")) {
251 if (log_set_target_from_string(word
+ 19) < 0)
252 log_warning("Failed to parse log target %s. Ignoring.", word
+ 19);
254 } else if (startswith(word
, "systemd.log_level=")) {
256 if (log_set_max_level_from_string(word
+ 18) < 0)
257 log_warning("Failed to parse log level %s. Ignoring.", word
+ 18);
259 } else if (startswith(word
, "systemd.log_color=")) {
261 if (log_show_color_from_string(word
+ 18) < 0)
262 log_warning("Failed to parse log color setting %s. Ignoring.", word
+ 18);
264 } else if (startswith(word
, "systemd.log_location=")) {
266 if (log_show_location_from_string(word
+ 21) < 0)
267 log_warning("Failed to parse log location setting %s. Ignoring.", word
+ 21);
269 } else if (startswith(word
, "systemd.dump_core=")) {
272 if ((r
= parse_boolean(word
+ 18)) < 0)
273 log_warning("Failed to parse dump core switch %s, Ignoring.", word
+ 18);
277 } else if (startswith(word
, "systemd.crash_shell=")) {
280 if ((r
= parse_boolean(word
+ 20)) < 0)
281 log_warning("Failed to parse crash shell switch %s, Ignoring.", word
+ 20);
285 } else if (startswith(word
, "systemd.confirm_spawn=")) {
288 if ((r
= parse_boolean(word
+ 22)) < 0)
289 log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word
+ 22);
291 arg_confirm_spawn
= r
;
293 } else if (startswith(word
, "systemd.crash_chvt=")) {
296 if (safe_atoi(word
+ 19, &k
) < 0)
297 log_warning("Failed to parse crash chvt switch %s, Ignoring.", word
+ 19);
301 } else if (startswith(word
, "systemd.show_status=")) {
304 if ((r
= parse_boolean(word
+ 20)) < 0)
305 log_warning("Failed to parse show status switch %s, Ignoring.", word
+ 20);
309 } else if (startswith(word
, "systemd.sysv_console=")) {
312 if ((r
= parse_boolean(word
+ 21)) < 0)
313 log_warning("Failed to parse SysV console switch %s, Ignoring.", word
+ 20);
315 arg_sysv_console
= r
;
317 } else if (startswith(word
, "systemd.")) {
319 log_warning("Unknown kernel switch %s. Ignoring.", word
);
321 log_info("Supported kernel switches:\n"
322 "systemd.unit=UNIT Default unit to start\n"
323 "systemd.dump_core=0|1 Dump core on crash\n"
324 "systemd.crash_shell=0|1 Run shell on crash\n"
325 "systemd.crash_chvt=N Change to VT #N on crash\n"
326 "systemd.confirm_spawn=0|1 Confirm every process spawn\n"
327 "systemd.show_status=0|1 Show status updates on the console during bootup\n"
328 "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n"
329 "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n"
331 "systemd.log_level=LEVEL Log level\n"
332 "systemd.log_color=0|1 Highlight important log messages\n"
333 "systemd.log_location=0|1 Include code location in log messages\n");
335 } else if (streq(word
, "nomodules"))
336 arg_nomodules
= true;
337 else if (startswith(word
, "console=")) {
346 !startswith(k
, "tty") ||
347 k
[3+strspn(k
+3, "0123456789")] != 0) {
349 if (!(w
= strndup(k
, l
)))
356 } else if (streq(word
, "quiet")) {
357 arg_show_status
= false;
358 arg_sysv_console
= false;
362 /* SysV compatibility */
363 for (i
= 0; i
< ELEMENTSOF(rlmap
); i
+= 2)
364 if (streq(word
, rlmap
[i
]))
365 return set_default_unit(rlmap
[i
+1]);
371 static int config_parse_level(
372 const char *filename
,
384 log_set_max_level_from_string(rvalue
);
388 static int config_parse_target(
389 const char *filename
,
401 log_set_target_from_string(rvalue
);
405 static int config_parse_color(
406 const char *filename
,
418 log_show_color_from_string(rvalue
);
422 static int config_parse_location(
423 const char *filename
,
435 log_show_location_from_string(rvalue
);
439 static int config_parse_cpu_affinity(
440 const char *filename
,
458 FOREACH_WORD_QUOTED(w
, l
, rvalue
, state
) {
463 if (!(t
= strndup(w
, l
)))
466 r
= safe_atou(t
, &cpu
);
470 if (!(c
= cpu_set_malloc(&ncpus
)))
473 if (r
< 0 || cpu
>= ncpus
) {
474 log_error("[%s:%u] Failed to parse CPU affinity: %s", filename
, line
, rvalue
);
479 CPU_SET_S(cpu
, CPU_ALLOC_SIZE(ncpus
), c
);
483 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus
), c
) < 0)
484 log_warning("Failed to set CPU affinity: %m");
492 static int parse_config_file(void) {
494 const ConfigItem items
[] = {
495 { "LogLevel", config_parse_level
, NULL
, "Manager" },
496 { "LogTarget", config_parse_target
, NULL
, "Manager" },
497 { "LogColor", config_parse_color
, NULL
, "Manager" },
498 { "LogLocation", config_parse_location
, NULL
, "Manager" },
499 { "DumpCore", config_parse_bool
, &arg_dump_core
, "Manager" },
500 { "CrashShell", config_parse_bool
, &arg_crash_shell
, "Manager" },
501 { "ShowStatus", config_parse_bool
, &arg_show_status
, "Manager" },
502 { "SysVConsole", config_parse_bool
, &arg_sysv_console
,"Manager" },
503 { "CrashChVT", config_parse_int
, &arg_crash_chvt
, "Manager" },
504 { "CPUAffinity", config_parse_cpu_affinity
, NULL
, "Manager" },
505 { NULL
, NULL
, NULL
, NULL
}
508 static const char * const sections
[] = {
517 fn
= arg_running_as
== MANAGER_SYSTEM
? SYSTEM_CONFIG_FILE
: SESSION_CONFIG_FILE
;
519 if (!(f
= fopen(fn
, "re"))) {
523 log_warning("Failed to open configuration file '%s': %m", fn
);
527 if ((r
= config_parse(fn
, f
, sections
, items
, false, NULL
)) < 0)
528 log_warning("Failed to parse configuration file: %s", strerror(-r
));
535 static int parse_proc_cmdline(void) {
542 if ((r
= read_one_line_file("/proc/cmdline", &line
)) < 0) {
543 log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r
));
547 FOREACH_WORD_QUOTED(w
, l
, line
, state
) {
550 if (!(word
= strndup(w
, l
))) {
555 r
= parse_proc_cmdline_word(word
);
569 static int parse_argv(int argc
, char *argv
[]) {
572 ARG_LOG_LEVEL
= 0x100,
580 ARG_DUMP_CONFIGURATION_ITEMS
,
590 static const struct option options
[] = {
591 { "log-level", required_argument
, NULL
, ARG_LOG_LEVEL
},
592 { "log-target", required_argument
, NULL
, ARG_LOG_TARGET
},
593 { "log-color", optional_argument
, NULL
, ARG_LOG_COLOR
},
594 { "log-location", optional_argument
, NULL
, ARG_LOG_LOCATION
},
595 { "unit", required_argument
, NULL
, ARG_UNIT
},
596 { "system", no_argument
, NULL
, ARG_SYSTEM
},
597 { "session", no_argument
, NULL
, ARG_SESSION
},
598 { "test", no_argument
, NULL
, ARG_TEST
},
599 { "help", no_argument
, NULL
, 'h' },
600 { "dump-configuration-items", no_argument
, NULL
, ARG_DUMP_CONFIGURATION_ITEMS
},
601 { "dump-core", no_argument
, NULL
, ARG_DUMP_CORE
},
602 { "crash-shell", no_argument
, NULL
, ARG_CRASH_SHELL
},
603 { "confirm-spawn", no_argument
, NULL
, ARG_CONFIRM_SPAWN
},
604 { "show-status", optional_argument
, NULL
, ARG_SHOW_STATUS
},
605 { "sysv-console", optional_argument
, NULL
, ARG_SYSV_CONSOLE
},
606 { "deserialize", required_argument
, NULL
, ARG_DESERIALIZE
},
607 { "introspect", optional_argument
, NULL
, ARG_INTROSPECT
},
616 while ((c
= getopt_long(argc
, argv
, "hD", options
, NULL
)) >= 0)
621 if ((r
= log_set_max_level_from_string(optarg
)) < 0) {
622 log_error("Failed to parse log level %s.", optarg
);
630 if ((r
= log_set_target_from_string(optarg
)) < 0) {
631 log_error("Failed to parse log target %s.", optarg
);
640 if ((r
= log_show_color_from_string(optarg
)) < 0) {
641 log_error("Failed to parse log color setting %s.", optarg
);
645 log_show_color(true);
649 case ARG_LOG_LOCATION
:
652 if ((r
= log_show_location_from_string(optarg
)) < 0) {
653 log_error("Failed to parse log location setting %s.", optarg
);
657 log_show_location(true);
663 if ((r
= set_default_unit(optarg
)) < 0) {
664 log_error("Failed to set default unit %s: %s", optarg
, strerror(-r
));
671 arg_running_as
= MANAGER_SYSTEM
;
675 arg_running_as
= MANAGER_SESSION
;
679 arg_action
= ACTION_TEST
;
682 case ARG_DUMP_CONFIGURATION_ITEMS
:
683 arg_action
= ACTION_DUMP_CONFIGURATION_ITEMS
;
687 arg_dump_core
= true;
690 case ARG_CRASH_SHELL
:
691 arg_crash_shell
= true;
694 case ARG_CONFIRM_SPAWN
:
695 arg_confirm_spawn
= true;
698 case ARG_SHOW_STATUS
:
701 if ((r
= parse_boolean(optarg
)) < 0) {
702 log_error("Failed to show status boolean %s.", optarg
);
707 arg_show_status
= true;
710 case ARG_SYSV_CONSOLE
:
713 if ((r
= parse_boolean(optarg
)) < 0) {
714 log_error("Failed to SysV console boolean %s.", optarg
);
717 arg_sysv_console
= r
;
719 arg_sysv_console
= true;
722 case ARG_DESERIALIZE
: {
726 if ((r
= safe_atoi(optarg
, &fd
)) < 0 || fd
< 0) {
727 log_error("Failed to parse deserialize option %s.", optarg
);
731 if (!(f
= fdopen(fd
, "r"))) {
732 log_error("Failed to open serialization fd: %m");
737 fclose(serialization
);
744 case ARG_INTROSPECT
: {
745 const char * const * i
= NULL
;
747 for (i
= bus_interface_table
; *i
; i
+= 2)
748 if (!optarg
|| streq(i
[0], optarg
)) {
749 fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE
752 fputs("</node>\n", stdout
);
759 log_error("Unknown interface %s.", optarg
);
761 arg_action
= ACTION_DONE
;
766 arg_action
= ACTION_HELP
;
770 log_set_max_level(LOG_DEBUG
);
777 log_error("Unknown option code %c", c
);
781 /* PID 1 will get the kernel arguments as parameters, which we
782 * ignore and unconditionally read from
783 * /proc/cmdline. However, we need to ignore those arguments
785 if (arg_running_as
!= MANAGER_SYSTEM
&& optind
< argc
) {
786 log_error("Excess arguments.");
793 static int help(void) {
795 printf("%s [OPTIONS...]\n\n"
796 "Starts up and maintains the system or a session.\n\n"
797 " -h --help Show this help\n"
798 " --test Determine startup sequence, dump it and exit\n"
799 " --dump-configuration-items Dump understood unit configuration items\n"
800 " --introspect[=INTERFACE] Extract D-Bus interface data\n"
801 " --unit=UNIT Set default unit\n"
802 " --system Run a system instance, even if PID != 1\n"
803 " --session Run a session instance\n"
804 " --dump-core Dump core on crash\n"
805 " --crash-shell Run shell on crash\n"
806 " --confirm-spawn Ask for confirmation when spawning processes\n"
807 " --show-status[=0|1] Show status updates on the console during bootup\n"
808 " --sysv-console[=0|1] Connect output of SysV scripts to console\n"
809 " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n"
810 " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
811 " --log-color[=0|1] Highlight important log messages\n"
812 " --log-location[=0|1] Include code location in log messages\n",
813 program_invocation_short_name
);
818 static int prepare_reexecute(Manager
*m
, FILE **_f
, FDSet
**_fds
) {
827 if ((r
= manager_open_serialization(m
, &f
)) < 0) {
828 log_error("Failed to create serialization faile: %s", strerror(-r
));
832 if (!(fds
= fdset_new())) {
834 log_error("Failed to allocate fd set: %s", strerror(-r
));
838 if ((r
= manager_serialize(m
, f
, fds
)) < 0) {
839 log_error("Failed to serialize state: %s", strerror(-r
));
843 if (fseeko(f
, 0, SEEK_SET
) < 0) {
844 log_error("Failed to rewind serialization fd: %m");
848 if ((r
= fd_cloexec(fileno(f
), false)) < 0) {
849 log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r
));
853 if ((r
= fdset_cloexec(fds
, false)) < 0) {
854 log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r
));
872 int main(int argc
, char *argv
[]) {
877 bool reexecute
= false;
879 if (getpid() != 1 && strstr(program_invocation_short_name
, "init")) {
880 /* This is compatbility support for SysV, where
881 * calling init as a user is identical to telinit. */
884 execv(SYSTEMCTL_BINARY_PATH
, argv
);
885 log_error("Failed to exec " SYSTEMCTL_BINARY_PATH
": %m");
889 log_show_color(isatty(STDERR_FILENO
) > 0);
890 log_show_location(false);
891 log_set_max_level(LOG_INFO
);
894 arg_running_as
= MANAGER_SYSTEM
;
895 log_set_target(LOG_TARGET_SYSLOG_OR_KMSG
);
897 if (label_init() < 0)
900 arg_running_as
= MANAGER_SESSION
;
901 log_set_target(LOG_TARGET_CONSOLE
);
904 if (set_default_unit(SPECIAL_DEFAULT_TARGET
) < 0)
907 /* Mount /proc, /sys and friends, so that /proc/cmdline and
908 * /proc/$PID/fd is available. */
909 if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS"))
910 if (mount_setup() < 0)
913 /* Reset all signal handlers. */
914 assert_se(reset_all_signal_handlers() == 0);
916 /* If we are init, we can block sigkill. Yay. */
917 ignore_signals(SIGNALS_IGNORE
, -1);
919 if (parse_config_file() < 0)
922 if (arg_running_as
== MANAGER_SYSTEM
)
923 if (parse_proc_cmdline() < 0)
926 log_parse_environment();
928 if (parse_argv(argc
, argv
) < 0)
931 if (arg_action
== ACTION_HELP
) {
934 } else if (arg_action
== ACTION_DUMP_CONFIGURATION_ITEMS
) {
935 unit_dump_config_items(stdout
);
938 } else if (arg_action
== ACTION_DONE
) {
943 assert_se(arg_action
== ACTION_RUN
|| arg_action
== ACTION_TEST
);
945 /* Remember open file descriptors for later deserialization */
947 if ((r
= fdset_new_fill(&fds
)) < 0) {
948 log_error("Failed to allocate fd set: %s", strerror(-r
));
952 assert_se(fdset_remove(fds
, fileno(serialization
)) >= 0);
954 close_all_fds(NULL
, 0);
956 /* Set up PATH unless it is already set */
958 "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
959 arg_running_as
== MANAGER_SYSTEM
);
961 /* Move out of the way, so that we won't block unmounts */
962 assert_se(chdir("/") == 0);
964 if (arg_running_as
== MANAGER_SYSTEM
) {
965 /* Become a session leader if we aren't one yet. */
968 /* Disable the umask logic */
972 /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */
973 dbus_connection_set_change_sigpipe(FALSE
);
975 /* Reset the console, but only if this is really init and we
976 * are freshly booted */
977 if (arg_running_as
== MANAGER_SYSTEM
&& arg_action
== ACTION_RUN
) {
978 console_setup(getpid() == 1 && !serialization
);
982 /* Open the logging devices, if possible and necessary */
985 /* Make sure we leave a core dump without panicing the
988 install_crash_handler();
990 log_info(PACKAGE_STRING
" running in %s mode.", manager_running_as_to_string(arg_running_as
));
992 if (arg_running_as
== MANAGER_SYSTEM
) {
994 /* Disable nscd, to avoid deadlocks when systemd uses
995 * NSS and the nscd socket is maintained by us. */
996 /* if (nss_disable_nscd) { */
997 /* log_debug("Disabling nscd"); */
998 /* nss_disable_nscd(); */
1000 /* log_debug("Hmm, can't disable nscd."); */
1002 if (!serialization
) {
1003 if (arg_show_status
)
1005 modprobe_setup(arg_nomodules
);
1012 if ((r
= manager_new(arg_running_as
, &m
)) < 0) {
1013 log_error("Failed to allocate manager object: %s", strerror(-r
));
1017 m
->confirm_spawn
= arg_confirm_spawn
;
1018 m
->show_status
= arg_show_status
;
1019 m
->sysv_console
= arg_sysv_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
;
1038 dbus_error_init(&error
);
1040 log_debug("Activating default unit: %s", arg_default_unit
);
1042 if ((r
= manager_load_unit(m
, arg_default_unit
, NULL
, &error
, &target
)) < 0) {
1043 log_error("Failed to load default target: %s", bus_error(&error
, r
));
1044 dbus_error_free(&error
);
1046 log_info("Trying to load rescue target...");
1047 if ((r
= manager_load_unit(m
, SPECIAL_RESCUE_TARGET
, NULL
, &error
, &target
)) < 0) {
1048 log_error("Failed to load rescue target: %s", bus_error(&error
, r
));
1049 dbus_error_free(&error
);
1054 if (arg_action
== ACTION_TEST
) {
1055 printf("-> By units:\n");
1056 manager_dump_units(m
, stdout
, "\t");
1059 if ((r
= manager_add_job(m
, JOB_START
, target
, JOB_REPLACE
, false, &error
, NULL
)) < 0) {
1060 log_error("Failed to start default target: %s", bus_error(&error
, r
));
1061 dbus_error_free(&error
);
1065 if (arg_console
&& arg_running_as
== MANAGER_SYSTEM
) {
1068 if (asprintf(&name
, "getty@%s.service", arg_console
) < 0)
1069 log_error("Out of memory while generating console getty service name.");
1071 if ((r
= manager_add_job_by_name(m
, JOB_START
, name
, JOB_FAIL
, false, &error
, NULL
)) < 0) {
1072 log_error("Failed to start console getty target: %s", bus_error(&error
, r
));
1073 dbus_error_free(&error
);
1080 if (arg_action
== ACTION_TEST
) {
1081 printf("-> By jobs:\n");
1082 manager_dump_jobs(m
, stdout
, "\t");
1089 if ((r
= manager_loop(m
)) < 0) {
1090 log_error("Failed to run mainloop: %s", strerror(-r
));
1094 switch (m
->exit_code
) {
1101 case MANAGER_RELOAD
:
1102 log_info("Reloading.");
1103 if ((r
= manager_reload(m
)) < 0)
1104 log_error("Failed to reload: %s", strerror(-r
));
1107 case MANAGER_REEXECUTE
:
1108 if (prepare_reexecute(m
, &serialization
, &fds
) < 0)
1112 log_notice("Reexecuting.");
1116 assert_not_reached("Unknown exit code.");
1124 free(arg_default_unit
);
1130 const char *args
[15];
1134 assert(serialization
);
1137 args
[i
++] = SYSTEMD_BINARY_PATH
;
1139 args
[i
++] = "--log-level";
1140 args
[i
++] = log_level_to_string(log_get_max_level());
1142 args
[i
++] = "--log-target";
1143 args
[i
++] = log_target_to_string(log_get_target());
1145 if (arg_running_as
== MANAGER_SYSTEM
)
1146 args
[i
++] = "--system";
1148 args
[i
++] = "--session";
1151 args
[i
++] = "--dump-core";
1153 if (arg_crash_shell
)
1154 args
[i
++] = "--crash-shell";
1156 if (arg_confirm_spawn
)
1157 args
[i
++] = "--confirm-spawn";
1159 if (arg_show_status
)
1160 args
[i
++] = "--show-status=1";
1162 args
[i
++] = "--show-status=0";
1164 if (arg_sysv_console
)
1165 args
[i
++] = "--sysv-console=1";
1167 args
[i
++] = "--sysv-console=0";
1169 snprintf(sfd
, sizeof(sfd
), "%i", fileno(serialization
));
1172 args
[i
++] = "--deserialize";
1177 assert(i
<= ELEMENTSOF(args
));
1179 execv(args
[0], (char* const*) args
);
1181 log_error("Failed to reexecute: %m");
1185 fclose(serialization
);