1 /* SPDX-License-Identifier: LGPL-2.1+ */
3 This file is part of systemd.
5 Copyright 2010 Lennart Poettering
7 systemd is free software; you can redistribute it and/or modify it
8 under the terms of the GNU Lesser General Public License as published by
9 the Free Software Foundation; either version 2.1 of the License, or
10 (at your option) any later version.
12 systemd is distributed in the hope that it will be useful, but
13 WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 Lesser General Public License for more details.
17 You should have received a copy of the GNU Lesser General Public License
18 along with systemd; If not, see <http://www.gnu.org/licenses/>.
27 #include <sys/mount.h>
28 #include <sys/prctl.h>
29 #include <sys/reboot.h>
35 #if HAVE_VALGRIND_VALGRIND_H
36 #include <valgrind/valgrind.h>
40 #include "sd-daemon.h"
42 #include "alloc-util.h"
43 #include "architecture.h"
45 #include "bus-error.h"
47 #include "capability-util.h"
48 #include "clock-util.h"
49 #include "conf-parser.h"
50 #include "cpu-set-util.h"
51 #include "dbus-manager.h"
53 #include "emergency-action.h"
58 #include "format-util.h"
60 #include "hostname-setup.h"
61 #include "ima-setup.h"
63 #include "kmod-setup.h"
64 #include "load-fragment.h"
66 #include "loopback-setup.h"
67 #include "machine-id-setup.h"
70 #include "mount-setup.h"
72 #include "parse-util.h"
73 #include "path-util.h"
74 #include "proc-cmdline.h"
75 #include "process-util.h"
76 #include "raw-clone.h"
77 #include "rlimit-util.h"
79 #include "seccomp-util.h"
81 #include "selinux-setup.h"
82 #include "selinux-util.h"
83 #include "signal-util.h"
84 #include "smack-setup.h"
86 #include "stat-util.h"
87 #include "stdio-util.h"
89 #include "switch-root.h"
90 #include "terminal-util.h"
91 #include "umask-util.h"
92 #include "user-util.h"
101 ACTION_DUMP_CONFIGURATION_ITEMS
102 } arg_action
= ACTION_RUN
;
103 static char *arg_default_unit
= NULL
;
104 static bool arg_system
= false;
105 static bool arg_dump_core
= true;
106 static int arg_crash_chvt
= -1;
107 static bool arg_crash_shell
= false;
108 static bool arg_crash_reboot
= false;
109 static char *arg_confirm_spawn
= NULL
;
110 static ShowStatus arg_show_status
= _SHOW_STATUS_UNSET
;
111 static bool arg_switched_root
= false;
112 static bool arg_no_pager
= false;
113 static char ***arg_join_controllers
= NULL
;
114 static ExecOutput arg_default_std_output
= EXEC_OUTPUT_JOURNAL
;
115 static ExecOutput arg_default_std_error
= EXEC_OUTPUT_INHERIT
;
116 static usec_t arg_default_restart_usec
= DEFAULT_RESTART_USEC
;
117 static usec_t arg_default_timeout_start_usec
= DEFAULT_TIMEOUT_USEC
;
118 static usec_t arg_default_timeout_stop_usec
= DEFAULT_TIMEOUT_USEC
;
119 static usec_t arg_default_start_limit_interval
= DEFAULT_START_LIMIT_INTERVAL
;
120 static unsigned arg_default_start_limit_burst
= DEFAULT_START_LIMIT_BURST
;
121 static usec_t arg_runtime_watchdog
= 0;
122 static usec_t arg_shutdown_watchdog
= 10 * USEC_PER_MINUTE
;
123 static char **arg_default_environment
= NULL
;
124 static struct rlimit
*arg_default_rlimit
[_RLIMIT_MAX
] = {};
125 static uint64_t arg_capability_bounding_set
= CAP_ALL
;
126 static nsec_t arg_timer_slack_nsec
= NSEC_INFINITY
;
127 static usec_t arg_default_timer_accuracy_usec
= 1 * USEC_PER_MINUTE
;
128 static Set
* arg_syscall_archs
= NULL
;
129 static FILE* arg_serialization
= NULL
;
130 static bool arg_default_cpu_accounting
= false;
131 static bool arg_default_io_accounting
= false;
132 static bool arg_default_ip_accounting
= false;
133 static bool arg_default_blockio_accounting
= false;
134 static bool arg_default_memory_accounting
= false;
135 static bool arg_default_tasks_accounting
= true;
136 static uint64_t arg_default_tasks_max
= UINT64_MAX
;
137 static sd_id128_t arg_machine_id
= {};
138 static EmergencyAction arg_cad_burst_action
= EMERGENCY_ACTION_REBOOT_FORCE
;
140 noreturn
static void freeze_or_reboot(void) {
142 if (arg_crash_reboot
) {
143 log_notice("Rebooting in 10s...");
146 log_notice("Rebooting now...");
147 (void) reboot(RB_AUTOBOOT
);
148 log_emergency_errno(errno
, "Failed to reboot: %m");
151 log_emergency("Freezing execution.");
155 noreturn
static void crash(int sig
) {
159 if (getpid_cached() != 1)
160 /* Pass this on immediately, if this is not PID 1 */
162 else if (!arg_dump_core
)
163 log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig
));
165 sa
= (struct sigaction
) {
166 .sa_handler
= nop_signal_handler
,
167 .sa_flags
= SA_NOCLDSTOP
|SA_RESTART
,
170 /* We want to wait for the core process, hence let's enable SIGCHLD */
171 (void) sigaction(SIGCHLD
, &sa
, NULL
);
173 pid
= raw_clone(SIGCHLD
);
175 log_emergency_errno(errno
, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig
));
177 /* Enable default signal handler for core dump */
179 sa
= (struct sigaction
) {
180 .sa_handler
= SIG_DFL
,
182 (void) sigaction(sig
, &sa
, NULL
);
184 /* Don't limit the coredump size */
185 (void) setrlimit(RLIMIT_CORE
, &RLIMIT_MAKE_CONST(RLIM_INFINITY
));
187 /* Just to be sure... */
190 /* Raise the signal again */
192 (void) kill(pid
, sig
); /* raise() would kill the parent */
194 assert_not_reached("We shouldn't be here...");
200 /* Order things nicely. */
201 r
= wait_for_terminate(pid
, &status
);
203 log_emergency_errno(r
, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig
));
204 else if (status
.si_code
!= CLD_DUMPED
)
205 log_emergency("Caught <%s>, core dump failed (child "PID_FMT
", code=%s, status=%i/%s).",
206 signal_to_string(sig
),
207 pid
, sigchld_code_to_string(status
.si_code
),
209 strna(status
.si_code
== CLD_EXITED
210 ? exit_status_to_string(status
.si_status
, EXIT_STATUS_MINIMAL
)
211 : signal_to_string(status
.si_status
)));
213 log_emergency("Caught <%s>, dumped core as pid "PID_FMT
".", signal_to_string(sig
), pid
);
217 if (arg_crash_chvt
>= 0)
218 (void) chvt(arg_crash_chvt
);
220 sa
= (struct sigaction
) {
221 .sa_handler
= SIG_IGN
,
222 .sa_flags
= SA_NOCLDSTOP
|SA_NOCLDWAIT
|SA_RESTART
,
225 /* Let the kernel reap children for us */
226 (void) sigaction(SIGCHLD
, &sa
, NULL
);
228 if (arg_crash_shell
) {
229 log_notice("Executing crash shell in 10s...");
232 pid
= raw_clone(SIGCHLD
);
234 log_emergency_errno(errno
, "Failed to fork off crash shell: %m");
237 (void) make_console_stdio();
238 (void) execle("/bin/sh", "/bin/sh", NULL
, environ
);
240 log_emergency_errno(errno
, "execle() failed: %m");
243 log_info("Spawned crash shell as PID "PID_FMT
".", pid
);
244 (void) wait_for_terminate(pid
, NULL
);
251 static void install_crash_handler(void) {
252 static const struct sigaction sa
= {
254 .sa_flags
= SA_NODEFER
, /* So that we can raise the signal again from the signal handler */
258 /* We ignore the return value here, since, we don't mind if we
259 * cannot set up a crash handler */
260 r
= sigaction_many(&sa
, SIGNALS_CRASH_HANDLER
, -1);
262 log_debug_errno(r
, "I had trouble setting up the crash handler, ignoring: %m");
265 static int console_setup(void) {
266 _cleanup_close_
int tty_fd
= -1;
269 tty_fd
= open_terminal("/dev/console", O_WRONLY
|O_NOCTTY
|O_CLOEXEC
);
271 return log_error_errno(tty_fd
, "Failed to open /dev/console: %m");
273 /* We don't want to force text mode. plymouth may be showing
274 * pictures already from initrd. */
275 r
= reset_terminal_fd(tty_fd
, false);
277 return log_error_errno(r
, "Failed to reset /dev/console: %m");
282 static int parse_crash_chvt(const char *value
) {
285 if (safe_atoi(value
, &arg_crash_chvt
) >= 0)
288 b
= parse_boolean(value
);
293 arg_crash_chvt
= 0; /* switch to where kmsg goes */
295 arg_crash_chvt
= -1; /* turn off switching */
300 static int parse_confirm_spawn(const char *value
, char **console
) {
304 r
= value
? parse_boolean(value
) : 1;
310 if (r
> 0) /* on with default tty */
311 s
= strdup("/dev/console");
312 else if (is_path(value
)) /* on with fully qualified path */
314 else /* on with only a tty file name, not a fully qualified path */
315 s
= strjoin("/dev/", value
);
322 static int set_machine_id(const char *m
) {
326 if (sd_id128_from_string(m
, &t
) < 0)
329 if (sd_id128_is_null(t
))
336 static int parse_proc_cmdline_item(const char *key
, const char *value
, void *data
) {
342 if (STR_IN_SET(key
, "systemd.unit", "rd.systemd.unit")) {
344 if (proc_cmdline_value_missing(key
, value
))
347 if (!unit_name_is_valid(value
, UNIT_NAME_PLAIN
|UNIT_NAME_INSTANCE
))
348 log_warning("Unit name specified on %s= is not valid, ignoring: %s", key
, value
);
349 else if (in_initrd() == !!startswith(key
, "rd.")) {
350 if (free_and_strdup(&arg_default_unit
, value
) < 0)
354 } else if (proc_cmdline_key_streq(key
, "systemd.dump_core")) {
356 r
= value
? parse_boolean(value
) : true;
358 log_warning("Failed to parse dump core switch %s. Ignoring.", value
);
362 } else if (proc_cmdline_key_streq(key
, "systemd.crash_chvt")) {
365 arg_crash_chvt
= 0; /* turn on */
366 else if (parse_crash_chvt(value
) < 0)
367 log_warning("Failed to parse crash chvt switch %s. Ignoring.", value
);
369 } else if (proc_cmdline_key_streq(key
, "systemd.crash_shell")) {
371 r
= value
? parse_boolean(value
) : true;
373 log_warning("Failed to parse crash shell switch %s. Ignoring.", value
);
377 } else if (proc_cmdline_key_streq(key
, "systemd.crash_reboot")) {
379 r
= value
? parse_boolean(value
) : true;
381 log_warning("Failed to parse crash reboot switch %s. Ignoring.", value
);
383 arg_crash_reboot
= r
;
385 } else if (proc_cmdline_key_streq(key
, "systemd.confirm_spawn")) {
388 r
= parse_confirm_spawn(value
, &s
);
390 log_warning_errno(r
, "Failed to parse confirm_spawn switch %s. Ignoring.", value
);
392 free(arg_confirm_spawn
);
393 arg_confirm_spawn
= s
;
396 } else if (proc_cmdline_key_streq(key
, "systemd.show_status")) {
399 r
= parse_show_status(value
, &arg_show_status
);
401 log_warning("Failed to parse show status switch %s. Ignoring.", value
);
403 arg_show_status
= SHOW_STATUS_YES
;
405 } else if (proc_cmdline_key_streq(key
, "systemd.default_standard_output")) {
407 if (proc_cmdline_value_missing(key
, value
))
410 r
= exec_output_from_string(value
);
412 log_warning("Failed to parse default standard output switch %s. Ignoring.", value
);
414 arg_default_std_output
= r
;
416 } else if (proc_cmdline_key_streq(key
, "systemd.default_standard_error")) {
418 if (proc_cmdline_value_missing(key
, value
))
421 r
= exec_output_from_string(value
);
423 log_warning("Failed to parse default standard error switch %s. Ignoring.", value
);
425 arg_default_std_error
= r
;
427 } else if (streq(key
, "systemd.setenv")) {
429 if (proc_cmdline_value_missing(key
, value
))
432 if (env_assignment_is_valid(value
)) {
435 env
= strv_env_set(arg_default_environment
, value
);
439 arg_default_environment
= env
;
441 log_warning("Environment variable name '%s' is not valid. Ignoring.", value
);
443 } else if (proc_cmdline_key_streq(key
, "systemd.machine_id")) {
445 if (proc_cmdline_value_missing(key
, value
))
448 r
= set_machine_id(value
);
450 log_warning("MachineID '%s' is not valid. Ignoring.", value
);
452 } else if (proc_cmdline_key_streq(key
, "systemd.default_timeout_start_sec")) {
454 if (proc_cmdline_value_missing(key
, value
))
457 r
= parse_sec(value
, &arg_default_timeout_start_usec
);
459 log_warning_errno(r
, "Failed to parse default start timeout: %s, ignoring.", value
);
461 if (arg_default_timeout_start_usec
<= 0)
462 arg_default_timeout_start_usec
= USEC_INFINITY
;
464 } else if (streq(key
, "quiet") && !value
) {
466 if (arg_show_status
== _SHOW_STATUS_UNSET
)
467 arg_show_status
= SHOW_STATUS_AUTO
;
469 } else if (streq(key
, "debug") && !value
) {
471 /* Note that log_parse_environment() handles 'debug'
472 * too, and sets the log level to LOG_DEBUG. */
474 if (detect_container() > 0)
475 log_set_target(LOG_TARGET_CONSOLE
);
480 /* SysV compatibility */
481 target
= runlevel_to_target(key
);
483 return free_and_strdup(&arg_default_unit
, target
);
489 #define DEFINE_SETTER(name, func, descr) \
490 static int name(const char *unit, \
491 const char *filename, \
493 const char *section, \
494 unsigned section_line, \
495 const char *lvalue, \
497 const char *rvalue, \
509 log_syntax(unit, LOG_ERR, filename, line, r, \
510 "Invalid " descr "'%s': %m", \
516 DEFINE_SETTER(config_parse_level2
, log_set_max_level_from_string
, "log level")
517 DEFINE_SETTER(config_parse_target
, log_set_target_from_string
, "target")
518 DEFINE_SETTER(config_parse_color
, log_show_color_from_string
, "color" )
519 DEFINE_SETTER(config_parse_location
, log_show_location_from_string
, "location")
521 static int config_parse_cpu_affinity2(
523 const char *filename
,
526 unsigned section_line
,
533 _cleanup_cpu_free_ cpu_set_t
*c
= NULL
;
536 ncpus
= parse_cpu_set_and_warn(rvalue
, &c
, unit
, filename
, line
, lvalue
);
540 if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus
), c
) < 0)
541 log_warning_errno(errno
, "Failed to set CPU affinity: %m");
546 static int config_parse_show_status(
548 const char *filename
,
551 unsigned section_line
,
559 ShowStatus
*b
= data
;
566 k
= parse_show_status(rvalue
, b
);
568 log_syntax(unit
, LOG_ERR
, filename
, line
, k
, "Failed to parse show status setting, ignoring: %s", rvalue
);
575 static int config_parse_output_restricted(
577 const char *filename
,
580 unsigned section_line
,
587 ExecOutput t
, *eo
= data
;
594 t
= exec_output_from_string(rvalue
);
596 log_syntax(unit
, LOG_ERR
, filename
, line
, 0, "Failed to parse output type, ignoring: %s", rvalue
);
600 if (IN_SET(t
, EXEC_OUTPUT_SOCKET
, EXEC_OUTPUT_NAMED_FD
, EXEC_OUTPUT_FILE
)) {
601 log_syntax(unit
, LOG_ERR
, filename
, line
, 0, "Standard output types socket, fd:, file: are not supported as defaults, ignoring: %s", rvalue
);
609 static int config_parse_crash_chvt(
611 const char *filename
,
614 unsigned section_line
,
627 r
= parse_crash_chvt(rvalue
);
629 log_syntax(unit
, LOG_ERR
, filename
, line
, r
, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue
);
636 static int config_parse_join_controllers(const char *unit
,
637 const char *filename
,
640 unsigned section_line
,
647 const char *whole_rvalue
= rvalue
;
654 arg_join_controllers
= strv_free_free(arg_join_controllers
);
657 _cleanup_free_
char *word
= NULL
;
661 r
= extract_first_word(&rvalue
, &word
, NULL
, EXTRACT_QUOTES
);
663 log_syntax(unit
, LOG_ERR
, filename
, line
, r
, "Invalid value for %s: %s", lvalue
, whole_rvalue
);
669 l
= strv_split(word
, ",");
674 if (strv_length(l
) <= 1) {
679 if (!arg_join_controllers
) {
680 arg_join_controllers
= new(char**, 2);
681 if (!arg_join_controllers
) {
686 arg_join_controllers
[0] = l
;
687 arg_join_controllers
[1] = NULL
;
694 t
= new0(char**, n
+2);
702 for (a
= arg_join_controllers
; *a
; a
++) {
704 if (strv_overlap(*a
, l
)) {
705 if (strv_extend_strv(&l
, *a
, false) < 0) {
725 t
[n
++] = strv_uniq(l
);
727 strv_free_free(arg_join_controllers
);
728 arg_join_controllers
= t
;
731 if (!isempty(rvalue
))
732 log_syntax(unit
, LOG_ERR
, filename
, line
, 0, "Trailing garbage, ignoring.");
737 static int parse_config_file(void) {
739 const ConfigTableItem items
[] = {
740 { "Manager", "LogLevel", config_parse_level2
, 0, NULL
},
741 { "Manager", "LogTarget", config_parse_target
, 0, NULL
},
742 { "Manager", "LogColor", config_parse_color
, 0, NULL
},
743 { "Manager", "LogLocation", config_parse_location
, 0, NULL
},
744 { "Manager", "DumpCore", config_parse_bool
, 0, &arg_dump_core
},
745 { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt
, 0, NULL
},
746 { "Manager", "CrashChangeVT", config_parse_crash_chvt
, 0, NULL
},
747 { "Manager", "CrashShell", config_parse_bool
, 0, &arg_crash_shell
},
748 { "Manager", "CrashReboot", config_parse_bool
, 0, &arg_crash_reboot
},
749 { "Manager", "ShowStatus", config_parse_show_status
, 0, &arg_show_status
},
750 { "Manager", "CPUAffinity", config_parse_cpu_affinity2
, 0, NULL
},
751 { "Manager", "JoinControllers", config_parse_join_controllers
, 0, &arg_join_controllers
},
752 { "Manager", "RuntimeWatchdogSec", config_parse_sec
, 0, &arg_runtime_watchdog
},
753 { "Manager", "ShutdownWatchdogSec", config_parse_sec
, 0, &arg_shutdown_watchdog
},
754 { "Manager", "CapabilityBoundingSet", config_parse_capability_set
, 0, &arg_capability_bounding_set
},
756 { "Manager", "SystemCallArchitectures", config_parse_syscall_archs
, 0, &arg_syscall_archs
},
758 { "Manager", "TimerSlackNSec", config_parse_nsec
, 0, &arg_timer_slack_nsec
},
759 { "Manager", "DefaultTimerAccuracySec", config_parse_sec
, 0, &arg_default_timer_accuracy_usec
},
760 { "Manager", "DefaultStandardOutput", config_parse_output_restricted
,0, &arg_default_std_output
},
761 { "Manager", "DefaultStandardError", config_parse_output_restricted
,0, &arg_default_std_error
},
762 { "Manager", "DefaultTimeoutStartSec", config_parse_sec
, 0, &arg_default_timeout_start_usec
},
763 { "Manager", "DefaultTimeoutStopSec", config_parse_sec
, 0, &arg_default_timeout_stop_usec
},
764 { "Manager", "DefaultRestartSec", config_parse_sec
, 0, &arg_default_restart_usec
},
765 { "Manager", "DefaultStartLimitInterval", config_parse_sec
, 0, &arg_default_start_limit_interval
}, /* obsolete alias */
766 { "Manager", "DefaultStartLimitIntervalSec",config_parse_sec
, 0, &arg_default_start_limit_interval
},
767 { "Manager", "DefaultStartLimitBurst", config_parse_unsigned
, 0, &arg_default_start_limit_burst
},
768 { "Manager", "DefaultEnvironment", config_parse_environ
, 0, &arg_default_environment
},
769 { "Manager", "DefaultLimitCPU", config_parse_limit
, RLIMIT_CPU
, arg_default_rlimit
},
770 { "Manager", "DefaultLimitFSIZE", config_parse_limit
, RLIMIT_FSIZE
, arg_default_rlimit
},
771 { "Manager", "DefaultLimitDATA", config_parse_limit
, RLIMIT_DATA
, arg_default_rlimit
},
772 { "Manager", "DefaultLimitSTACK", config_parse_limit
, RLIMIT_STACK
, arg_default_rlimit
},
773 { "Manager", "DefaultLimitCORE", config_parse_limit
, RLIMIT_CORE
, arg_default_rlimit
},
774 { "Manager", "DefaultLimitRSS", config_parse_limit
, RLIMIT_RSS
, arg_default_rlimit
},
775 { "Manager", "DefaultLimitNOFILE", config_parse_limit
, RLIMIT_NOFILE
, arg_default_rlimit
},
776 { "Manager", "DefaultLimitAS", config_parse_limit
, RLIMIT_AS
, arg_default_rlimit
},
777 { "Manager", "DefaultLimitNPROC", config_parse_limit
, RLIMIT_NPROC
, arg_default_rlimit
},
778 { "Manager", "DefaultLimitMEMLOCK", config_parse_limit
, RLIMIT_MEMLOCK
, arg_default_rlimit
},
779 { "Manager", "DefaultLimitLOCKS", config_parse_limit
, RLIMIT_LOCKS
, arg_default_rlimit
},
780 { "Manager", "DefaultLimitSIGPENDING", config_parse_limit
, RLIMIT_SIGPENDING
, arg_default_rlimit
},
781 { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit
, RLIMIT_MSGQUEUE
, arg_default_rlimit
},
782 { "Manager", "DefaultLimitNICE", config_parse_limit
, RLIMIT_NICE
, arg_default_rlimit
},
783 { "Manager", "DefaultLimitRTPRIO", config_parse_limit
, RLIMIT_RTPRIO
, arg_default_rlimit
},
784 { "Manager", "DefaultLimitRTTIME", config_parse_limit
, RLIMIT_RTTIME
, arg_default_rlimit
},
785 { "Manager", "DefaultCPUAccounting", config_parse_bool
, 0, &arg_default_cpu_accounting
},
786 { "Manager", "DefaultIOAccounting", config_parse_bool
, 0, &arg_default_io_accounting
},
787 { "Manager", "DefaultIPAccounting", config_parse_bool
, 0, &arg_default_ip_accounting
},
788 { "Manager", "DefaultBlockIOAccounting", config_parse_bool
, 0, &arg_default_blockio_accounting
},
789 { "Manager", "DefaultMemoryAccounting", config_parse_bool
, 0, &arg_default_memory_accounting
},
790 { "Manager", "DefaultTasksAccounting", config_parse_bool
, 0, &arg_default_tasks_accounting
},
791 { "Manager", "DefaultTasksMax", config_parse_tasks_max
, 0, &arg_default_tasks_max
},
792 { "Manager", "CtrlAltDelBurstAction", config_parse_emergency_action
, 0, &arg_cad_burst_action
},
796 const char *fn
, *conf_dirs_nulstr
;
799 PKGSYSCONFDIR
"/system.conf" :
800 PKGSYSCONFDIR
"/user.conf";
802 conf_dirs_nulstr
= arg_system
?
803 CONF_PATHS_NULSTR("systemd/system.conf.d") :
804 CONF_PATHS_NULSTR("systemd/user.conf.d");
806 (void) config_parse_many_nulstr(fn
, conf_dirs_nulstr
, "Manager\0", config_item_table_lookup
, items
, CONFIG_PARSE_WARN
, NULL
);
808 /* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we used USEC_INFINITY
809 * like everywhere else. */
810 if (arg_default_timeout_start_usec
<= 0)
811 arg_default_timeout_start_usec
= USEC_INFINITY
;
812 if (arg_default_timeout_stop_usec
<= 0)
813 arg_default_timeout_stop_usec
= USEC_INFINITY
;
818 static void set_manager_defaults(Manager
*m
) {
822 m
->default_timer_accuracy_usec
= arg_default_timer_accuracy_usec
;
823 m
->default_std_output
= arg_default_std_output
;
824 m
->default_std_error
= arg_default_std_error
;
825 m
->default_timeout_start_usec
= arg_default_timeout_start_usec
;
826 m
->default_timeout_stop_usec
= arg_default_timeout_stop_usec
;
827 m
->default_restart_usec
= arg_default_restart_usec
;
828 m
->default_start_limit_interval
= arg_default_start_limit_interval
;
829 m
->default_start_limit_burst
= arg_default_start_limit_burst
;
830 m
->default_cpu_accounting
= arg_default_cpu_accounting
;
831 m
->default_io_accounting
= arg_default_io_accounting
;
832 m
->default_ip_accounting
= arg_default_ip_accounting
;
833 m
->default_blockio_accounting
= arg_default_blockio_accounting
;
834 m
->default_memory_accounting
= arg_default_memory_accounting
;
835 m
->default_tasks_accounting
= arg_default_tasks_accounting
;
836 m
->default_tasks_max
= arg_default_tasks_max
;
838 manager_set_default_rlimits(m
, arg_default_rlimit
);
839 manager_environment_add(m
, NULL
, arg_default_environment
);
842 static void set_manager_settings(Manager
*m
) {
846 m
->confirm_spawn
= arg_confirm_spawn
;
847 m
->runtime_watchdog
= arg_runtime_watchdog
;
848 m
->shutdown_watchdog
= arg_shutdown_watchdog
;
849 m
->cad_burst_action
= arg_cad_burst_action
;
851 manager_set_show_status(m
, arg_show_status
);
854 static int parse_argv(int argc
, char *argv
[]) {
857 ARG_LOG_LEVEL
= 0x100,
867 ARG_DUMP_CONFIGURATION_ITEMS
,
876 ARG_DEFAULT_STD_OUTPUT
,
877 ARG_DEFAULT_STD_ERROR
,
881 static const struct option options
[] = {
882 { "log-level", required_argument
, NULL
, ARG_LOG_LEVEL
},
883 { "log-target", required_argument
, NULL
, ARG_LOG_TARGET
},
884 { "log-color", optional_argument
, NULL
, ARG_LOG_COLOR
},
885 { "log-location", optional_argument
, NULL
, ARG_LOG_LOCATION
},
886 { "unit", required_argument
, NULL
, ARG_UNIT
},
887 { "system", no_argument
, NULL
, ARG_SYSTEM
},
888 { "user", no_argument
, NULL
, ARG_USER
},
889 { "test", no_argument
, NULL
, ARG_TEST
},
890 { "no-pager", no_argument
, NULL
, ARG_NO_PAGER
},
891 { "help", no_argument
, NULL
, 'h' },
892 { "version", no_argument
, NULL
, ARG_VERSION
},
893 { "dump-configuration-items", no_argument
, NULL
, ARG_DUMP_CONFIGURATION_ITEMS
},
894 { "dump-core", optional_argument
, NULL
, ARG_DUMP_CORE
},
895 { "crash-chvt", required_argument
, NULL
, ARG_CRASH_CHVT
},
896 { "crash-shell", optional_argument
, NULL
, ARG_CRASH_SHELL
},
897 { "crash-reboot", optional_argument
, NULL
, ARG_CRASH_REBOOT
},
898 { "confirm-spawn", optional_argument
, NULL
, ARG_CONFIRM_SPAWN
},
899 { "show-status", optional_argument
, NULL
, ARG_SHOW_STATUS
},
900 { "deserialize", required_argument
, NULL
, ARG_DESERIALIZE
},
901 { "switched-root", no_argument
, NULL
, ARG_SWITCHED_ROOT
},
902 { "default-standard-output", required_argument
, NULL
, ARG_DEFAULT_STD_OUTPUT
, },
903 { "default-standard-error", required_argument
, NULL
, ARG_DEFAULT_STD_ERROR
, },
904 { "machine-id", required_argument
, NULL
, ARG_MACHINE_ID
},
913 if (getpid_cached() == 1)
916 while ((c
= getopt_long(argc
, argv
, "hDbsz:", options
, NULL
)) >= 0)
921 r
= log_set_max_level_from_string(optarg
);
923 log_error("Failed to parse log level %s.", optarg
);
930 r
= log_set_target_from_string(optarg
);
932 log_error("Failed to parse log target %s.", optarg
);
941 r
= log_show_color_from_string(optarg
);
943 log_error("Failed to parse log color setting %s.", optarg
);
947 log_show_color(true);
951 case ARG_LOG_LOCATION
:
953 r
= log_show_location_from_string(optarg
);
955 log_error("Failed to parse log location setting %s.", optarg
);
959 log_show_location(true);
963 case ARG_DEFAULT_STD_OUTPUT
:
964 r
= exec_output_from_string(optarg
);
966 log_error("Failed to parse default standard output setting %s.", optarg
);
969 arg_default_std_output
= r
;
972 case ARG_DEFAULT_STD_ERROR
:
973 r
= exec_output_from_string(optarg
);
975 log_error("Failed to parse default standard error output setting %s.", optarg
);
978 arg_default_std_error
= r
;
982 r
= free_and_strdup(&arg_default_unit
, optarg
);
984 return log_error_errno(r
, "Failed to set default unit %s: %m", optarg
);
997 arg_action
= ACTION_TEST
;
1001 arg_no_pager
= true;
1005 arg_action
= ACTION_VERSION
;
1008 case ARG_DUMP_CONFIGURATION_ITEMS
:
1009 arg_action
= ACTION_DUMP_CONFIGURATION_ITEMS
;
1014 arg_dump_core
= true;
1016 r
= parse_boolean(optarg
);
1018 return log_error_errno(r
, "Failed to parse dump core boolean: %s", optarg
);
1023 case ARG_CRASH_CHVT
:
1024 r
= parse_crash_chvt(optarg
);
1026 return log_error_errno(r
, "Failed to parse crash virtual terminal index: %s", optarg
);
1029 case ARG_CRASH_SHELL
:
1031 arg_crash_shell
= true;
1033 r
= parse_boolean(optarg
);
1035 return log_error_errno(r
, "Failed to parse crash shell boolean: %s", optarg
);
1036 arg_crash_shell
= r
;
1040 case ARG_CRASH_REBOOT
:
1042 arg_crash_reboot
= true;
1044 r
= parse_boolean(optarg
);
1046 return log_error_errno(r
, "Failed to parse crash shell boolean: %s", optarg
);
1047 arg_crash_reboot
= r
;
1051 case ARG_CONFIRM_SPAWN
:
1052 arg_confirm_spawn
= mfree(arg_confirm_spawn
);
1054 r
= parse_confirm_spawn(optarg
, &arg_confirm_spawn
);
1056 return log_error_errno(r
, "Failed to parse confirm spawn option: %m");
1059 case ARG_SHOW_STATUS
:
1061 r
= parse_show_status(optarg
, &arg_show_status
);
1063 log_error("Failed to parse show status boolean %s.", optarg
);
1067 arg_show_status
= SHOW_STATUS_YES
;
1070 case ARG_DESERIALIZE
: {
1074 r
= safe_atoi(optarg
, &fd
);
1075 if (r
< 0 || fd
< 0) {
1076 log_error("Failed to parse deserialize option %s.", optarg
);
1080 (void) fd_cloexec(fd
, true);
1082 f
= fdopen(fd
, "r");
1084 return log_error_errno(errno
, "Failed to open serialization fd: %m");
1086 safe_fclose(arg_serialization
);
1087 arg_serialization
= f
;
1092 case ARG_SWITCHED_ROOT
:
1093 arg_switched_root
= true;
1096 case ARG_MACHINE_ID
:
1097 r
= set_machine_id(optarg
);
1099 return log_error_errno(r
, "MachineID '%s' is not valid.", optarg
);
1103 arg_action
= ACTION_HELP
;
1107 log_set_max_level(LOG_DEBUG
);
1113 /* Just to eat away the sysvinit kernel
1114 * cmdline args without getopt() error
1115 * messages that we'll parse in
1116 * parse_proc_cmdline_word() or ignore. */
1119 if (getpid_cached() != 1)
1125 assert_not_reached("Unhandled option code.");
1128 if (optind
< argc
&& getpid_cached() != 1) {
1129 /* Hmm, when we aren't run as init system
1130 * let's complain about excess arguments */
1132 log_error("Excess arguments.");
1139 static int help(void) {
1141 printf("%s [OPTIONS...]\n\n"
1142 "Starts up and maintains the system or user services.\n\n"
1143 " -h --help Show this help\n"
1144 " --version Show version\n"
1145 " --test Determine startup sequence, dump it and exit\n"
1146 " --no-pager Do not pipe output into a pager\n"
1147 " --dump-configuration-items Dump understood unit configuration items\n"
1148 " --unit=UNIT Set default unit\n"
1149 " --system Run a system instance, even if PID != 1\n"
1150 " --user Run a user instance\n"
1151 " --dump-core[=BOOL] Dump core on crash\n"
1152 " --crash-vt=NR Change to specified VT on crash\n"
1153 " --crash-reboot[=BOOL] Reboot on crash\n"
1154 " --crash-shell[=BOOL] Run shell on crash\n"
1155 " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n"
1156 " --show-status[=BOOL] Show status updates on the console during bootup\n"
1157 " --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n"
1158 " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n"
1159 " --log-color[=BOOL] Highlight important log messages\n"
1160 " --log-location[=BOOL] Include code location in log messages\n"
1161 " --default-standard-output= Set default standard output for services\n"
1162 " --default-standard-error= Set default standard error output for services\n",
1163 program_invocation_short_name
);
1168 static int prepare_reexecute(Manager
*m
, FILE **_f
, FDSet
**_fds
, bool switching_root
) {
1169 _cleanup_fdset_free_ FDSet
*fds
= NULL
;
1170 _cleanup_fclose_
FILE *f
= NULL
;
1177 r
= manager_open_serialization(m
, &f
);
1179 return log_error_errno(r
, "Failed to create serialization file: %m");
1181 /* Make sure nothing is really destructed when we shut down */
1183 bus_manager_send_reloading(m
, true);
1189 r
= manager_serialize(m
, f
, fds
, switching_root
);
1191 return log_error_errno(r
, "Failed to serialize state: %m");
1193 if (fseeko(f
, 0, SEEK_SET
) == (off_t
) -1)
1194 return log_error_errno(errno
, "Failed to rewind serialization fd: %m");
1196 r
= fd_cloexec(fileno(f
), false);
1198 return log_error_errno(r
, "Failed to disable O_CLOEXEC for serialization: %m");
1200 r
= fdset_cloexec(fds
, false);
1202 return log_error_errno(r
, "Failed to disable O_CLOEXEC for serialization fds: %m");
1213 static int bump_rlimit_nofile(struct rlimit
*saved_rlimit
) {
1217 _cleanup_free_
char *nr_open
= NULL
;
1219 assert(saved_rlimit
);
1221 /* Save the original RLIMIT_NOFILE so that we can reset it
1222 * later when transitioning from the initrd to the main
1223 * systemd or suchlike. */
1224 if (getrlimit(RLIMIT_NOFILE
, saved_rlimit
) < 0)
1225 return log_warning_errno(errno
, "Reading RLIMIT_NOFILE failed, ignoring: %m");
1227 /* Make sure forked processes get the default kernel setting */
1228 if (!arg_default_rlimit
[RLIMIT_NOFILE
]) {
1231 rl
= newdup(struct rlimit
, saved_rlimit
, 1);
1235 arg_default_rlimit
[RLIMIT_NOFILE
] = rl
;
1238 /* Get current RLIMIT_NOFILE maximum compiled into the kernel. */
1239 r
= read_one_line_file("/proc/sys/fs/nr_open", &nr_open
);
1241 r
= safe_atoi(nr_open
, &min_max
);
1242 /* If we fail, fallback to the hard-coded kernel limit of 1024 * 1024. */
1244 min_max
= 1024 * 1024;
1246 /* Bump up the resource limit for ourselves substantially */
1247 nl
.rlim_cur
= nl
.rlim_max
= min_max
;
1248 r
= setrlimit_closest(RLIMIT_NOFILE
, &nl
);
1250 return log_warning_errno(r
, "Setting RLIMIT_NOFILE failed, ignoring: %m");
1255 static int bump_rlimit_memlock(struct rlimit
*saved_rlimit
) {
1258 assert(saved_rlimit
);
1259 assert(getuid() == 0);
1261 /* BPF_MAP_TYPE_LPM_TRIE bpf maps are charged against RLIMIT_MEMLOCK, even though we have CAP_IPC_LOCK which
1262 * should normally disable such checks. We need them to implement IPAccessAllow= and IPAccessDeny=, hence let's
1263 * bump the value high enough for the root user. */
1265 if (getrlimit(RLIMIT_MEMLOCK
, saved_rlimit
) < 0)
1266 return log_warning_errno(errno
, "Reading RLIMIT_MEMLOCK failed, ignoring: %m");
1268 r
= setrlimit_closest(RLIMIT_MEMLOCK
, &RLIMIT_MAKE_CONST(1024ULL*1024ULL*16ULL));
1270 return log_warning_errno(r
, "Setting RLIMIT_MEMLOCK failed, ignoring: %m");
1275 static void test_usr(void) {
1277 /* Check that /usr is not a separate fs */
1279 if (dir_is_empty("/usr") <= 0)
1282 log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. "
1283 "Some things will probably break (sometimes even silently) in mysterious ways. "
1284 "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information.");
1287 static int initialize_join_controllers(void) {
1288 /* By default, mount "cpu" + "cpuacct" together, and "net_cls"
1289 * + "net_prio". We'd like to add "cpuset" to the mix, but
1290 * "cpuset" doesn't really work for groups with no initialized
1293 arg_join_controllers
= new(char**, 3);
1294 if (!arg_join_controllers
)
1297 arg_join_controllers
[0] = strv_new("cpu", "cpuacct", NULL
);
1298 if (!arg_join_controllers
[0])
1301 arg_join_controllers
[1] = strv_new("net_cls", "net_prio", NULL
);
1302 if (!arg_join_controllers
[1])
1305 arg_join_controllers
[2] = NULL
;
1309 arg_join_controllers
= strv_free_free(arg_join_controllers
);
1313 static int enforce_syscall_archs(Set
*archs
) {
1317 if (!is_seccomp_available())
1320 r
= seccomp_restrict_archs(arg_syscall_archs
);
1322 return log_error_errno(r
, "Failed to enforce system call architecture restrication: %m");
1327 static int status_welcome(void) {
1328 _cleanup_free_
char *pretty_name
= NULL
, *ansi_color
= NULL
;
1331 r
= parse_env_file("/etc/os-release", NEWLINE
,
1332 "PRETTY_NAME", &pretty_name
,
1333 "ANSI_COLOR", &ansi_color
,
1336 r
= parse_env_file("/usr/lib/os-release", NEWLINE
,
1337 "PRETTY_NAME", &pretty_name
,
1338 "ANSI_COLOR", &ansi_color
,
1341 if (r
< 0 && r
!= -ENOENT
)
1342 log_warning_errno(r
, "Failed to read os-release file: %m");
1344 if (log_get_show_color())
1345 return status_printf(NULL
, false, false,
1346 "\nWelcome to \x1B[%sm%s\x1B[0m!\n",
1347 isempty(ansi_color
) ? "1" : ansi_color
,
1348 isempty(pretty_name
) ? "Linux" : pretty_name
);
1350 return status_printf(NULL
, false, false,
1351 "\nWelcome to %s!\n",
1352 isempty(pretty_name
) ? "Linux" : pretty_name
);
1355 static int write_container_id(void) {
1359 c
= getenv("container");
1363 RUN_WITH_UMASK(0022)
1364 r
= write_string_file("/run/systemd/container", c
, WRITE_STRING_FILE_CREATE
);
1366 return log_warning_errno(r
, "Failed to write /run/systemd/container, ignoring: %m");
1371 static int bump_unix_max_dgram_qlen(void) {
1372 _cleanup_free_
char *qlen
= NULL
;
1376 /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel
1377 * default of 16 is simply too low. We set the value really
1378 * really early during boot, so that it is actually applied to
1379 * all our sockets, including the $NOTIFY_SOCKET one. */
1381 r
= read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen
);
1383 return log_warning_errno(r
, "Failed to read AF_UNIX datagram queue length, ignoring: %m");
1385 r
= safe_atolu(qlen
, &v
);
1387 return log_warning_errno(r
, "Failed to parse AF_UNIX datagram queue length, ignoring: %m");
1389 if (v
>= DEFAULT_UNIX_MAX_DGRAM_QLEN
)
1393 if (asprintf(&qlen
, "%lu\n", DEFAULT_UNIX_MAX_DGRAM_QLEN
) < 0)
1396 r
= write_string_file("/proc/sys/net/unix/max_dgram_qlen", qlen
, 0);
1398 return log_full_errno(IN_SET(r
, -EROFS
, -EPERM
, -EACCES
) ? LOG_DEBUG
: LOG_WARNING
, r
,
1399 "Failed to bump AF_UNIX datagram queue length, ignoring: %m");
1404 static int fixup_environment(void) {
1405 _cleanup_free_
char *term
= NULL
;
1408 /* We expect the environment to be set correctly
1409 * if run inside a container. */
1410 if (detect_container() > 0)
1413 /* When started as PID1, the kernel uses /dev/console
1414 * for our stdios and uses TERM=linux whatever the
1415 * backend device used by the console. We try to make
1416 * a better guess here since some consoles might not
1417 * have support for color mode for example.
1419 * However if TERM was configured through the kernel
1420 * command line then leave it alone. */
1422 r
= proc_cmdline_get_key("TERM", 0, &term
);
1426 term
= strdup(default_term_for_tty("/dev/console"));
1431 if (setenv("TERM", term
, 1) < 0)
1437 static void redirect_telinit(int argc
, char *argv
[]) {
1439 /* This is compatibility support for SysV, where calling init as a user is identical to telinit. */
1441 #if HAVE_SYSV_COMPAT
1442 if (getpid_cached() == 1)
1445 if (!strstr(program_invocation_short_name
, "init"))
1448 execv(SYSTEMCTL_BINARY_PATH
, argv
);
1449 log_error_errno(errno
, "Failed to exec " SYSTEMCTL_BINARY_PATH
": %m");
1454 static int become_shutdown(
1455 const char *shutdown_verb
,
1458 char log_level
[DECIMAL_STR_MAX(int) + 1],
1459 exit_code
[DECIMAL_STR_MAX(uint8_t) + 1];
1461 const char* command_line
[11] = {
1462 SYSTEMD_SHUTDOWN_BINARY_PATH
,
1464 "--log-level", log_level
,
1468 _cleanup_strv_free_
char **env_block
= NULL
;
1472 assert(shutdown_verb
);
1473 assert(command_line
[pos
] == NULL
);
1474 env_block
= strv_copy(environ
);
1476 xsprintf(log_level
, "%d", log_get_max_level());
1478 switch (log_get_target()) {
1480 case LOG_TARGET_KMSG
:
1481 case LOG_TARGET_JOURNAL_OR_KMSG
:
1482 case LOG_TARGET_SYSLOG_OR_KMSG
:
1483 command_line
[pos
++] = "kmsg";
1486 case LOG_TARGET_NULL
:
1487 command_line
[pos
++] = "null";
1490 case LOG_TARGET_CONSOLE
:
1492 command_line
[pos
++] = "console";
1496 if (log_get_show_color())
1497 command_line
[pos
++] = "--log-color";
1499 if (log_get_show_location())
1500 command_line
[pos
++] = "--log-location";
1502 if (streq(shutdown_verb
, "exit")) {
1503 command_line
[pos
++] = "--exit-code";
1504 command_line
[pos
++] = exit_code
;
1505 xsprintf(exit_code
, "%d", retval
);
1508 assert(pos
< ELEMENTSOF(command_line
));
1510 if (streq(shutdown_verb
, "reboot") &&
1511 arg_shutdown_watchdog
> 0 &&
1512 arg_shutdown_watchdog
!= USEC_INFINITY
) {
1516 /* If we reboot let's set the shutdown
1517 * watchdog and tell the shutdown binary to
1518 * repeatedly ping it */
1519 r
= watchdog_set_timeout(&arg_shutdown_watchdog
);
1520 watchdog_close(r
< 0);
1522 /* Tell the binary how often to ping, ignore failure */
1523 if (asprintf(&e
, "WATCHDOG_USEC="USEC_FMT
, arg_shutdown_watchdog
) > 0)
1524 (void) strv_push(&env_block
, e
);
1526 watchdog_close(true);
1528 /* Avoid the creation of new processes forked by the
1529 * kernel; at this point, we will not listen to the
1531 if (detect_container() <= 0)
1532 (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER
);
1534 execve(SYSTEMD_SHUTDOWN_BINARY_PATH
, (char **) command_line
, env_block
);
1538 static void initialize_clock(void) {
1541 if (clock_is_localtime(NULL
) > 0) {
1545 * The very first call of settimeofday() also does a time warp in the kernel.
1547 * In the rtc-in-local time mode, we set the kernel's timezone, and rely on external tools to take care
1548 * of maintaining the RTC and do all adjustments. This matches the behavior of Windows, which leaves
1549 * the RTC alone if the registry tells that the RTC runs in UTC.
1551 r
= clock_set_timezone(&min
);
1553 log_error_errno(r
, "Failed to apply local time delta, ignoring: %m");
1555 log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min
);
1557 } else if (!in_initrd()) {
1559 * Do a dummy very first call to seal the kernel's time warp magic.
1561 * Do not call this from inside the initrd. The initrd might not carry /etc/adjtime with LOCAL, but the
1562 * real system could be set up that way. In such case, we need to delay the time-warp or the sealing
1563 * until we reach the real system.
1565 * Do no set the kernel's timezone. The concept of local time cannot be supported reliably, the time
1566 * will jump or be incorrect at every daylight saving time change. All kernel local time concepts will
1567 * be treated as UTC that way.
1569 (void) clock_reset_timewarp();
1572 r
= clock_apply_epoch();
1574 log_error_errno(r
, "Current system time is before build time, but cannot correct: %m");
1576 log_info("System time before build time, advancing clock.");
1579 static void initialize_coredump(bool skip_setup
) {
1581 if (getpid_cached() != 1)
1584 /* Don't limit the core dump size, so that coredump handlers such as systemd-coredump (which honour the limit)
1585 * will process core dumps for system services by default. */
1586 if (setrlimit(RLIMIT_CORE
, &RLIMIT_MAKE_CONST(RLIM_INFINITY
)) < 0)
1587 log_warning_errno(errno
, "Failed to set RLIMIT_CORE: %m");
1589 /* But at the same time, turn off the core_pattern logic by default, so that no coredumps are stored
1590 * until the systemd-coredump tool is enabled via sysctl. */
1592 (void) write_string_file("/proc/sys/kernel/core_pattern", "|/bin/false", 0);
1595 static void do_reexecute(
1598 const struct rlimit
*saved_rlimit_nofile
,
1599 const struct rlimit
*saved_rlimit_memlock
,
1601 const char *switch_root_dir
,
1602 const char *switch_root_init
,
1603 const char **ret_error_message
) {
1605 unsigned i
, j
, args_size
;
1609 assert(saved_rlimit_nofile
);
1610 assert(saved_rlimit_memlock
);
1611 assert(ret_error_message
);
1613 /* Close and disarm the watchdog, so that the new instance can reinitialize it, but doesn't get rebooted while
1615 watchdog_close(true);
1617 /* Reset the RLIMIT_NOFILE to the kernel default, so that the new systemd can pass the kernel default to its
1618 * child processes */
1620 if (saved_rlimit_nofile
->rlim_cur
> 0)
1621 (void) setrlimit(RLIMIT_NOFILE
, saved_rlimit_nofile
);
1622 if (saved_rlimit_memlock
->rlim_cur
!= (rlim_t
) -1)
1623 (void) setrlimit(RLIMIT_MEMLOCK
, saved_rlimit_memlock
);
1625 if (switch_root_dir
) {
1626 /* Kill all remaining processes from the initrd, but don't wait for them, so that we can handle the
1627 * SIGCHLD for them after deserializing. */
1628 broadcast_signal(SIGTERM
, false, true);
1630 /* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */
1631 r
= switch_root(switch_root_dir
, "/mnt", true, MS_MOVE
);
1633 log_error_errno(r
, "Failed to switch root, trying to continue: %m");
1636 args_size
= MAX(6, argc
+1);
1637 args
= newa(const char*, args_size
);
1639 if (!switch_root_init
) {
1640 char sfd
[DECIMAL_STR_MAX(int) + 1];
1642 /* First try to spawn ourselves with the right path, and with full serialization. We do this only if
1643 * the user didn't specify an explicit init to spawn. */
1645 assert(arg_serialization
);
1648 xsprintf(sfd
, "%i", fileno(arg_serialization
));
1651 args
[i
++] = SYSTEMD_BINARY_PATH
;
1652 if (switch_root_dir
)
1653 args
[i
++] = "--switched-root";
1654 args
[i
++] = arg_system
? "--system" : "--user";
1655 args
[i
++] = "--deserialize";
1659 assert(i
<= args_size
);
1662 * We want valgrind to print its memory usage summary before reexecution. Valgrind won't do this is on
1663 * its own on exec(), but it will do it on exit(). Hence, to ensure we get a summary here, fork() off
1664 * a child, let it exit() cleanly, so that it prints the summary, and wait() for it in the parent,
1665 * before proceeding into the exec().
1667 valgrind_summary_hack();
1669 (void) execv(args
[0], (char* const*) args
);
1670 log_debug_errno(errno
, "Failed to execute our own binary, trying fallback: %m");
1673 /* Try the fallback, if there is any, without any serialization. We pass the original argv[] and envp[]. (Well,
1674 * modulo the ordering changes due to getopt() in argv[], and some cleanups in envp[], but let's hope that
1675 * doesn't matter.) */
1677 arg_serialization
= safe_fclose(arg_serialization
);
1678 fds
= fdset_free(fds
);
1680 /* Reopen the console */
1681 (void) make_console_stdio();
1683 for (j
= 1, i
= 1; j
< (unsigned) argc
; j
++)
1684 args
[i
++] = argv
[j
];
1686 assert(i
<= args_size
);
1688 /* Reenable any blocked signals, especially important if we switch from initial ramdisk to init=... */
1689 (void) reset_all_signal_handlers();
1690 (void) reset_signal_mask();
1692 if (switch_root_init
) {
1693 args
[0] = switch_root_init
;
1694 (void) execv(args
[0], (char* const*) args
);
1695 log_warning_errno(errno
, "Failed to execute configured init, trying fallback: %m");
1698 args
[0] = "/sbin/init";
1699 (void) execv(args
[0], (char* const*) args
);
1702 manager_status_printf(NULL
, STATUS_TYPE_EMERGENCY
,
1703 ANSI_HIGHLIGHT_RED
" !! " ANSI_NORMAL
,
1704 "Failed to execute /sbin/init");
1707 log_warning("No /sbin/init, trying fallback");
1709 args
[0] = "/bin/sh";
1711 (void) execv(args
[0], (char* const*) args
);
1712 log_error_errno(errno
, "Failed to execute /bin/sh, giving up: %m");
1714 log_warning_errno(r
, "Failed to execute /sbin/init, giving up: %m");
1716 *ret_error_message
= "Failed to execute fallback shell";
1719 static int invoke_main_loop(
1721 bool *ret_reexecute
,
1722 int *ret_retval
, /* Return parameters relevant for shutting down */
1723 const char **ret_shutdown_verb
, /* … */
1724 FDSet
**ret_fds
, /* Return parameters for reexecuting */
1725 char **ret_switch_root_dir
, /* … */
1726 char **ret_switch_root_init
, /* … */
1727 const char **ret_error_message
) {
1732 assert(ret_reexecute
);
1734 assert(ret_shutdown_verb
);
1736 assert(ret_switch_root_dir
);
1737 assert(ret_switch_root_init
);
1738 assert(ret_error_message
);
1741 r
= manager_loop(m
);
1743 *ret_error_message
= "Failed to run main loop";
1744 return log_emergency_errno(r
, "Failed to run main loop: %m");
1747 switch (m
->exit_code
) {
1749 case MANAGER_RELOAD
:
1750 log_info("Reloading.");
1752 r
= parse_config_file();
1754 log_warning_errno(r
, "Failed to parse config file, ignoring: %m");
1756 set_manager_defaults(m
);
1758 r
= manager_reload(m
);
1760 log_warning_errno(r
, "Failed to reload, ignoring: %m");
1764 case MANAGER_REEXECUTE
:
1766 r
= prepare_reexecute(m
, &arg_serialization
, ret_fds
, false);
1768 *ret_error_message
= "Failed to prepare for reexecution";
1772 log_notice("Reexecuting.");
1774 *ret_reexecute
= true;
1775 *ret_retval
= EXIT_SUCCESS
;
1776 *ret_shutdown_verb
= NULL
;
1777 *ret_switch_root_dir
= *ret_switch_root_init
= NULL
;
1781 case MANAGER_SWITCH_ROOT
:
1782 if (!m
->switch_root_init
) {
1783 r
= prepare_reexecute(m
, &arg_serialization
, ret_fds
, true);
1785 *ret_error_message
= "Failed to prepare for reexecution";
1791 log_notice("Switching root.");
1793 *ret_reexecute
= true;
1794 *ret_retval
= EXIT_SUCCESS
;
1795 *ret_shutdown_verb
= NULL
;
1797 /* Steal the switch root parameters */
1798 *ret_switch_root_dir
= m
->switch_root
;
1799 *ret_switch_root_init
= m
->switch_root_init
;
1800 m
->switch_root
= m
->switch_root_init
= NULL
;
1806 if (MANAGER_IS_USER(m
)) {
1809 *ret_reexecute
= false;
1810 *ret_retval
= m
->return_value
;
1811 *ret_shutdown_verb
= NULL
;
1813 *ret_switch_root_dir
= *ret_switch_root_init
= NULL
;
1819 case MANAGER_REBOOT
:
1820 case MANAGER_POWEROFF
:
1822 case MANAGER_KEXEC
: {
1823 static const char * const table
[_MANAGER_EXIT_CODE_MAX
] = {
1824 [MANAGER_EXIT
] = "exit",
1825 [MANAGER_REBOOT
] = "reboot",
1826 [MANAGER_POWEROFF
] = "poweroff",
1827 [MANAGER_HALT
] = "halt",
1828 [MANAGER_KEXEC
] = "kexec"
1831 log_notice("Shutting down.");
1833 *ret_reexecute
= false;
1834 *ret_retval
= m
->return_value
;
1835 assert_se(*ret_shutdown_verb
= table
[m
->exit_code
]);
1837 *ret_switch_root_dir
= *ret_switch_root_init
= NULL
;
1843 assert_not_reached("Unknown exit code.");
1848 int main(int argc
, char *argv
[]) {
1850 int r
, retval
= EXIT_FAILURE
;
1851 usec_t before_startup
, after_startup
;
1852 char timespan
[FORMAT_TIMESPAN_MAX
];
1854 bool reexecute
= false;
1855 const char *shutdown_verb
= NULL
;
1856 dual_timestamp initrd_timestamp
= DUAL_TIMESTAMP_NULL
;
1857 dual_timestamp userspace_timestamp
= DUAL_TIMESTAMP_NULL
;
1858 dual_timestamp kernel_timestamp
= DUAL_TIMESTAMP_NULL
;
1859 dual_timestamp security_start_timestamp
= DUAL_TIMESTAMP_NULL
;
1860 dual_timestamp security_finish_timestamp
= DUAL_TIMESTAMP_NULL
;
1861 static char systemd
[] = "systemd";
1862 bool skip_setup
= false;
1864 bool loaded_policy
= false;
1865 bool queue_default_job
= false;
1866 bool first_boot
= false;
1867 char *switch_root_dir
= NULL
, *switch_root_init
= NULL
;
1868 struct rlimit saved_rlimit_nofile
= RLIMIT_MAKE_CONST(0), saved_rlimit_memlock
= RLIMIT_MAKE_CONST((rlim_t
) -1);
1869 const char *error_message
= NULL
;
1871 redirect_telinit(argc
, argv
);
1873 dual_timestamp_from_monotonic(&kernel_timestamp
, 0);
1874 dual_timestamp_get(&userspace_timestamp
);
1876 /* Determine if this is a reexecution or normal bootup. We do
1877 * the full command line parsing much later, so let's just
1878 * have a quick peek here. */
1879 if (strv_find(argv
+1, "--deserialize"))
1882 /* If we have switched root, do all the special setup
1884 if (strv_find(argv
+1, "--switched-root"))
1887 /* If we get started via the /sbin/init symlink then we are
1888 called 'init'. After a subsequent reexecution we are then
1889 called 'systemd'. That is confusing, hence let's call us
1890 systemd right-away. */
1891 program_invocation_short_name
= systemd
;
1892 (void) prctl(PR_SET_NAME
, systemd
);
1897 log_set_upgrade_syslog_to_journal(true);
1899 if (getpid_cached() == 1) {
1900 /* Disable the umask logic */
1903 /* Always reopen /dev/console when running as PID 1 or one of its pre-execve() children. This is
1904 * important so that we never end up logging to any foreign stderr, for example if we have to log in a
1905 * child process right before execve()'ing the actual binary, at a point in time where socket
1906 * activation stderr/stdout area already set up. */
1907 log_set_always_reopen_console(true);
1910 if (getpid_cached() == 1 && detect_container() <= 0) {
1912 /* Running outside of a container as PID 1 */
1914 log_set_target(LOG_TARGET_KMSG
);
1918 initrd_timestamp
= userspace_timestamp
;
1921 r
= mount_setup_early();
1923 error_message
= "Failed to mount early API filesystems";
1927 dual_timestamp_get(&security_start_timestamp
);
1928 if (mac_selinux_setup(&loaded_policy
) < 0) {
1929 error_message
= "Failed to load SELinux policy";
1931 } else if (mac_smack_setup(&loaded_policy
) < 0) {
1932 error_message
= "Failed to load SMACK policy";
1934 } else if (ima_setup() < 0) {
1935 error_message
= "Failed to load IMA policy";
1938 dual_timestamp_get(&security_finish_timestamp
);
1941 if (mac_selinux_init() < 0) {
1942 error_message
= "Failed to initialize SELinux policy";
1949 /* Set the default for later on, but don't actually
1950 * open the logs like this for now. Note that if we
1951 * are transitioning from the initrd there might still
1952 * be journal fd open, and we shouldn't attempt
1953 * opening that before we parsed /proc/cmdline which
1954 * might redirect output elsewhere. */
1955 log_set_target(LOG_TARGET_JOURNAL_OR_KMSG
);
1957 } else if (getpid_cached() == 1) {
1958 /* Running inside a container, as PID 1 */
1960 log_set_target(LOG_TARGET_CONSOLE
);
1961 log_close_console(); /* force reopen of /dev/console */
1964 /* For later on, see above... */
1965 log_set_target(LOG_TARGET_JOURNAL
);
1967 /* clear the kernel timestamp,
1968 * because we are in a container */
1969 kernel_timestamp
= DUAL_TIMESTAMP_NULL
;
1971 /* Running as user instance */
1973 log_set_target(LOG_TARGET_AUTO
);
1976 /* clear the kernel timestamp,
1977 * because we are not PID 1 */
1978 kernel_timestamp
= DUAL_TIMESTAMP_NULL
;
1981 initialize_coredump(skip_setup
);
1984 if (fixup_environment() < 0) {
1985 error_message
= "Failed to fix up PID1 environment";
1989 /* Try to figure out if we can use colors with the console. No
1990 * need to do that for user instances since they never log
1991 * into the console. */
1992 log_show_color(colors_enabled());
1993 r
= make_null_stdio();
1995 log_warning_errno(r
, "Failed to redirect standard streams to /dev/null: %m");
1998 r
= initialize_join_controllers();
2000 error_message
= "Failed to initialize cgroup controllers";
2004 /* Mount /proc, /sys and friends, so that /proc/cmdline and
2005 * /proc/$PID/fd is available. */
2006 if (getpid_cached() == 1) {
2008 /* Load the kernel modules early. */
2012 r
= mount_setup(loaded_policy
);
2014 error_message
= "Failed to mount API filesystems";
2019 /* Reset all signal handlers. */
2020 (void) reset_all_signal_handlers();
2021 (void) ignore_signals(SIGNALS_IGNORE
, -1);
2023 arg_default_tasks_max
= system_tasks_max_scale(DEFAULT_TASKS_MAX_PERCENTAGE
, 100U);
2025 if (parse_config_file() < 0) {
2026 error_message
= "Failed to parse config file";
2031 r
= proc_cmdline_parse(parse_proc_cmdline_item
, NULL
, 0);
2033 log_warning_errno(r
, "Failed to parse kernel command line, ignoring: %m");
2036 /* Note that this also parses bits from the kernel command
2037 * line, including "debug". */
2038 log_parse_environment();
2040 if (parse_argv(argc
, argv
) < 0) {
2041 error_message
= "Failed to parse commandline arguments";
2045 /* Initialize default unit */
2046 if (!arg_default_unit
) {
2047 arg_default_unit
= strdup(SPECIAL_DEFAULT_TARGET
);
2048 if (!arg_default_unit
) {
2050 error_message
= "Failed to set default unit";
2055 if (arg_action
== ACTION_TEST
&&
2057 log_error("Don't run test mode as root.");
2062 arg_action
== ACTION_RUN
&&
2064 log_error("Trying to run as user instance, but the system has not been booted with systemd.");
2069 arg_action
== ACTION_RUN
&&
2070 running_in_chroot() > 0) {
2071 log_error("Cannot be run in a chroot() environment.");
2075 if (IN_SET(arg_action
, ACTION_TEST
, ACTION_HELP
)) {
2076 pager_open(arg_no_pager
, false);
2080 if (arg_action
== ACTION_HELP
) {
2083 } else if (arg_action
== ACTION_VERSION
) {
2086 } else if (arg_action
== ACTION_DUMP_CONFIGURATION_ITEMS
) {
2087 pager_open(arg_no_pager
, false);
2088 unit_dump_config_items(stdout
);
2089 retval
= EXIT_SUCCESS
;
2094 !getenv("XDG_RUNTIME_DIR")) {
2095 log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set.");
2099 assert_se(IN_SET(arg_action
, ACTION_RUN
, ACTION_TEST
));
2101 /* Close logging fds, in order not to confuse fdset below */
2104 /* Remember open file descriptors for later deserialization */
2105 if (arg_action
== ACTION_RUN
) {
2106 r
= fdset_new_fill(&fds
);
2108 log_emergency_errno(r
, "Failed to allocate fd set: %m");
2109 error_message
= "Failed to allocate fd set";
2112 fdset_cloexec(fds
, true);
2114 if (arg_serialization
)
2115 assert_se(fdset_remove(fds
, fileno(arg_serialization
)) >= 0);
2118 /* Become a session leader if we aren't one yet. */
2122 /* Move out of the way, so that we won't block unmounts */
2123 assert_se(chdir("/") == 0);
2125 /* Reset the console, but only if this is really init and we
2126 * are freshly booted */
2127 if (arg_system
&& arg_action
== ACTION_RUN
) {
2129 /* If we are init, we connect stdin/stdout/stderr to
2130 * /dev/null and make sure we don't have a controlling
2134 if (getpid_cached() == 1 && !skip_setup
)
2138 /* Open the logging devices, if possible and necessary */
2141 if (arg_show_status
== _SHOW_STATUS_UNSET
)
2142 arg_show_status
= SHOW_STATUS_YES
;
2144 /* Make sure we leave a core dump without panicing the
2146 if (getpid_cached() == 1) {
2147 install_crash_handler();
2149 r
= mount_cgroup_controllers(arg_join_controllers
);
2157 log_info(PACKAGE_STRING
" running in %ssystem mode. (" SYSTEMD_FEATURES
")",
2158 arg_action
== ACTION_TEST
? "test " : "" );
2160 v
= detect_virtualization();
2162 log_info("Detected virtualization %s.", virtualization_to_string(v
));
2164 write_container_id();
2166 log_info("Detected architecture %s.", architecture_to_string(uname_architecture()));
2169 log_info("Running in initial RAM disk.");
2171 /* Let's check whether we are in first boot, i.e. whether /etc is still unpopulated. We use
2172 * /etc/machine-id as flag file, for this: if it exists we assume /etc is populated, if it
2173 * doesn't it's unpopulated. This allows container managers and installers to provision a
2174 * couple of files already. If the container manager wants to provision the machine ID itself
2175 * it should pass $container_uuid to PID 1. */
2177 first_boot
= access("/etc/machine-id", F_OK
) < 0;
2179 log_info("Running with unpopulated /etc.");
2182 _cleanup_free_
char *t
;
2184 t
= uid_to_name(getuid());
2185 log_debug(PACKAGE_STRING
" running in %suser mode for user " UID_FMT
"/%s. (" SYSTEMD_FEATURES
")",
2186 arg_action
== ACTION_TEST
? " test" : "", getuid(), strna(t
));
2189 if (arg_action
== ACTION_RUN
) {
2190 if (arg_system
&& !skip_setup
) {
2191 if (arg_show_status
> 0)
2195 machine_id_setup(NULL
, arg_machine_id
, NULL
);
2197 bump_unix_max_dgram_qlen();
2202 if (arg_system
&& arg_runtime_watchdog
> 0 && arg_runtime_watchdog
!= USEC_INFINITY
)
2203 watchdog_set_timeout(&arg_runtime_watchdog
);
2205 if (arg_timer_slack_nsec
!= NSEC_INFINITY
)
2206 if (prctl(PR_SET_TIMERSLACK
, arg_timer_slack_nsec
) < 0)
2207 log_error_errno(errno
, "Failed to adjust timer slack: %m");
2209 if (arg_system
&& !cap_test_all(arg_capability_bounding_set
)) {
2210 r
= capability_bounding_set_drop_usermode(arg_capability_bounding_set
);
2212 log_emergency_errno(r
, "Failed to drop capability bounding set of usermode helpers: %m");
2213 error_message
= "Failed to drop capability bounding set of usermode helpers";
2216 r
= capability_bounding_set_drop(arg_capability_bounding_set
, true);
2218 log_emergency_errno(r
, "Failed to drop capability bounding set: %m");
2219 error_message
= "Failed to drop capability bounding set";
2224 if (arg_syscall_archs
) {
2225 r
= enforce_syscall_archs(arg_syscall_archs
);
2227 error_message
= "Failed to set syscall architectures";
2233 /* Become reaper of our children */
2234 if (prctl(PR_SET_CHILD_SUBREAPER
, 1) < 0)
2235 log_warning_errno(errno
, "Failed to make us a subreaper: %m");
2238 /* Bump up RLIMIT_NOFILE for systemd itself */
2239 (void) bump_rlimit_nofile(&saved_rlimit_nofile
);
2240 (void) bump_rlimit_memlock(&saved_rlimit_memlock
);
2244 r
= manager_new(arg_system
? UNIT_FILE_SYSTEM
: UNIT_FILE_USER
,
2245 arg_action
== ACTION_TEST
? MANAGER_TEST_FULL
: 0,
2248 log_emergency_errno(r
, "Failed to allocate manager object: %m");
2249 error_message
= "Failed to allocate manager object";
2253 m
->timestamps
[MANAGER_TIMESTAMP_KERNEL
] = kernel_timestamp
;
2254 m
->timestamps
[MANAGER_TIMESTAMP_INITRD
] = initrd_timestamp
;
2255 m
->timestamps
[MANAGER_TIMESTAMP_USERSPACE
] = userspace_timestamp
;
2256 m
->timestamps
[MANAGER_TIMESTAMP_SECURITY_START
] = security_start_timestamp
;
2257 m
->timestamps
[MANAGER_TIMESTAMP_SECURITY_FINISH
] = security_finish_timestamp
;
2259 set_manager_defaults(m
);
2260 set_manager_settings(m
);
2261 manager_set_first_boot(m
, first_boot
);
2263 /* Remember whether we should queue the default job */
2264 queue_default_job
= !arg_serialization
|| arg_switched_root
;
2266 before_startup
= now(CLOCK_MONOTONIC
);
2268 r
= manager_startup(m
, arg_serialization
, fds
);
2270 log_error_errno(r
, "Failed to fully start up daemon: %m");
2274 /* This will close all file descriptors that were opened, but
2275 * not claimed by any unit. */
2276 fds
= fdset_free(fds
);
2278 arg_serialization
= safe_fclose(arg_serialization
);
2280 if (queue_default_job
) {
2281 _cleanup_(sd_bus_error_free
) sd_bus_error error
= SD_BUS_ERROR_NULL
;
2282 Unit
*target
= NULL
;
2283 Job
*default_unit_job
;
2285 log_debug("Activating default unit: %s", arg_default_unit
);
2287 r
= manager_load_unit(m
, arg_default_unit
, NULL
, &error
, &target
);
2289 log_error("Failed to load default target: %s", bus_error_message(&error
, r
));
2290 else if (IN_SET(target
->load_state
, UNIT_ERROR
, UNIT_NOT_FOUND
))
2291 log_error_errno(target
->load_error
, "Failed to load default target: %m");
2292 else if (target
->load_state
== UNIT_MASKED
)
2293 log_error("Default target masked.");
2295 if (!target
|| target
->load_state
!= UNIT_LOADED
) {
2296 log_info("Trying to load rescue target...");
2298 r
= manager_load_unit(m
, SPECIAL_RESCUE_TARGET
, NULL
, &error
, &target
);
2300 log_emergency("Failed to load rescue target: %s", bus_error_message(&error
, r
));
2301 error_message
= "Failed to load rescue target";
2303 } else if (IN_SET(target
->load_state
, UNIT_ERROR
, UNIT_NOT_FOUND
)) {
2304 log_emergency_errno(target
->load_error
, "Failed to load rescue target: %m");
2305 error_message
= "Failed to load rescue target";
2307 } else if (target
->load_state
== UNIT_MASKED
) {
2308 log_emergency("Rescue target masked.");
2309 error_message
= "Rescue target masked";
2314 assert(target
->load_state
== UNIT_LOADED
);
2316 if (arg_action
== ACTION_TEST
) {
2317 printf("-> By units:\n");
2318 manager_dump_units(m
, stdout
, "\t");
2321 r
= manager_add_job(m
, JOB_START
, target
, JOB_ISOLATE
, &error
, &default_unit_job
);
2323 log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error
, r
));
2325 sd_bus_error_free(&error
);
2327 r
= manager_add_job(m
, JOB_START
, target
, JOB_REPLACE
, &error
, &default_unit_job
);
2329 log_emergency("Failed to start default target: %s", bus_error_message(&error
, r
));
2330 error_message
= "Failed to start default target";
2334 log_emergency("Failed to isolate default target: %s", bus_error_message(&error
, r
));
2335 error_message
= "Failed to isolate default target";
2339 m
->default_unit_job_id
= default_unit_job
->id
;
2341 after_startup
= now(CLOCK_MONOTONIC
);
2342 log_full(arg_action
== ACTION_TEST
? LOG_INFO
: LOG_DEBUG
,
2343 "Loaded units and determined initial transaction in %s.",
2344 format_timespan(timespan
, sizeof(timespan
), after_startup
- before_startup
, 100 * USEC_PER_MSEC
));
2346 if (arg_action
== ACTION_TEST
) {
2347 printf("-> By jobs:\n");
2348 manager_dump_jobs(m
, stdout
, "\t");
2349 retval
= EXIT_SUCCESS
;
2354 r
= invoke_main_loop(m
,
2367 arg_shutdown_watchdog
= m
->shutdown_watchdog
;
2369 m
= manager_free(m
);
2371 for (j
= 0; j
< ELEMENTSOF(arg_default_rlimit
); j
++)
2372 arg_default_rlimit
[j
] = mfree(arg_default_rlimit
[j
]);
2374 arg_default_unit
= mfree(arg_default_unit
);
2375 arg_confirm_spawn
= mfree(arg_confirm_spawn
);
2376 arg_join_controllers
= strv_free_free(arg_join_controllers
);
2377 arg_default_environment
= strv_free(arg_default_environment
);
2378 arg_syscall_archs
= set_free(arg_syscall_archs
);
2380 mac_selinux_finish();
2383 do_reexecute(argc
, argv
,
2384 &saved_rlimit_nofile
,
2385 &saved_rlimit_memlock
,
2389 &error_message
); /* This only returns if reexecution failed */
2391 arg_serialization
= safe_fclose(arg_serialization
);
2392 fds
= fdset_free(fds
);
2394 #if HAVE_VALGRIND_VALGRIND_H
2395 /* If we are PID 1 and running under valgrind, then let's exit
2396 * here explicitly. valgrind will only generate nice output on
2397 * exit(), not on exec(), hence let's do the former not the
2399 if (getpid_cached() == 1 && RUNNING_ON_VALGRIND
)
2403 if (shutdown_verb
) {
2404 r
= become_shutdown(shutdown_verb
, retval
);
2406 log_error_errno(r
, "Failed to execute shutdown binary, %s: %m", getpid_cached() == 1 ? "freezing" : "quitting");
2407 error_message
= "Failed to execute shutdown binary";
2410 if (getpid_cached() == 1) {
2412 manager_status_printf(NULL
, STATUS_TYPE_EMERGENCY
,
2413 ANSI_HIGHLIGHT_RED
"!!!!!!" ANSI_NORMAL
,
2414 "%s, freezing.", error_message
);