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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
60918275 LP |
22 | #include <stdio.h> |
23 | #include <errno.h> | |
24 | #include <string.h> | |
16354eff | 25 | #include <unistd.h> |
4ade7963 LP |
26 | #include <sys/types.h> |
27 | #include <sys/stat.h> | |
f170852a | 28 | #include <getopt.h> |
97c4f35c | 29 | #include <signal.h> |
4fc935ca | 30 | #include <sys/wait.h> |
80876c20 | 31 | #include <fcntl.h> |
f3b6a3ed | 32 | #include <sys/prctl.h> |
664f88a7 | 33 | #include <sys/mount.h> |
60918275 | 34 | |
54b434b1 LP |
35 | #ifdef HAVE_VALGRIND_VALGRIND_H |
36 | #include <valgrind/valgrind.h> | |
37 | #endif | |
38 | ||
718db961 LP |
39 | #include "sd-daemon.h" |
40 | #include "sd-messages.h" | |
41 | #include "sd-bus.h" | |
60918275 | 42 | #include "manager.h" |
16354eff | 43 | #include "log.h" |
302e8c4c | 44 | #include "load-fragment.h" |
a16e1123 | 45 | #include "fdset.h" |
514f4ef5 | 46 | #include "special.h" |
487393e9 | 47 | #include "conf-parser.h" |
ad780f19 | 48 | #include "missing.h" |
e51bc1a2 | 49 | #include "label.h" |
302e27c8 | 50 | #include "build.h" |
06d4c99a | 51 | #include "strv.h" |
f6a6225e | 52 | #include "def.h" |
b52aae1d | 53 | #include "virt.h" |
e96d6be7 | 54 | #include "watchdog.h" |
664f88a7 | 55 | #include "path-util.h" |
41669317 | 56 | #include "switch-root.h" |
ec8927ca | 57 | #include "capability.h" |
bd3fa1d2 | 58 | #include "killall.h" |
0c4025d1 LP |
59 | #include "env-util.h" |
60 | #include "hwclock.h" | |
718db961 LP |
61 | #include "fileio.h" |
62 | #include "dbus-manager.h" | |
63 | #include "bus-error.h" | |
64 | #include "bus-util.h" | |
60918275 | 65 | |
b6e66135 LP |
66 | #include "mount-setup.h" |
67 | #include "loopback-setup.h" | |
b6e66135 LP |
68 | #include "hostname-setup.h" |
69 | #include "machine-id-setup.h" | |
b6e66135 LP |
70 | #include "selinux-setup.h" |
71 | #include "ima-setup.h" | |
ffbd2c4d | 72 | #include "smack-setup.h" |
718db961 LP |
73 | #ifdef HAVE_KMOD |
74 | #include "kmod-setup.h" | |
75 | #endif | |
b6e66135 | 76 | |
f170852a LP |
77 | static enum { |
78 | ACTION_RUN, | |
e965d56d | 79 | ACTION_HELP, |
9ba0bc4e | 80 | ACTION_VERSION, |
e537352b | 81 | ACTION_TEST, |
4288f619 LP |
82 | ACTION_DUMP_CONFIGURATION_ITEMS, |
83 | ACTION_DONE | |
fa0f4d8a | 84 | } arg_action = ACTION_RUN; |
fa0f4d8a | 85 | static char *arg_default_unit = NULL; |
67445f4e | 86 | static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; |
fa0f4d8a LP |
87 | static bool arg_dump_core = true; |
88 | static bool arg_crash_shell = false; | |
89 | static int arg_crash_chvt = -1; | |
90 | static bool arg_confirm_spawn = false; | |
d450b6f2 | 91 | static ShowStatus arg_show_status = SHOW_STATUS_UNSET; |
bf4df7c3 | 92 | static bool arg_switched_root = false; |
0c85a4f3 | 93 | static char ***arg_join_controllers = NULL; |
706343f4 | 94 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 95 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
1f19a534 OS |
96 | static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; |
97 | static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; | |
98 | static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
3f41e1e5 LN |
99 | static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; |
100 | static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; | |
e96d6be7 LP |
101 | static usec_t arg_runtime_watchdog = 0; |
102 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
97d0e5f8 | 103 | static char **arg_default_environment = NULL; |
c93ff2e9 | 104 | static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {}; |
ec8927ca | 105 | static uint64_t arg_capability_bounding_set_drop = 0; |
aa0f64ac | 106 | static nsec_t arg_timer_slack_nsec = (nsec_t) -1; |
d3b1c508 LP |
107 | static Set* arg_syscall_archs = NULL; |
108 | static FILE* arg_serialization = NULL; | |
4fc935ca | 109 | |
d3b1c508 | 110 | static void nop_handler(int sig) {} |
6f5e3f35 | 111 | |
919ce0b7 | 112 | noreturn static void crash(int sig) { |
97c4f35c | 113 | |
abb26902 LP |
114 | if (getpid() != 1) |
115 | /* Pass this on immediately, if this is not PID 1 */ | |
116 | raise(sig); | |
117 | else if (!arg_dump_core) | |
582a507f | 118 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 119 | else { |
b92bea5d ZJS |
120 | struct sigaction sa = { |
121 | .sa_handler = nop_handler, | |
122 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
123 | }; | |
97c4f35c LP |
124 | pid_t pid; |
125 | ||
6f5e3f35 | 126 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
abb26902 | 127 | sigaction(SIGCHLD, &sa, NULL); |
6f5e3f35 | 128 | |
e62d8c39 ZJS |
129 | pid = fork(); |
130 | if (pid < 0) | |
f5f6d0e2 | 131 | log_error("Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
97c4f35c LP |
132 | |
133 | else if (pid == 0) { | |
b92bea5d | 134 | struct rlimit rl = {}; |
97c4f35c LP |
135 | |
136 | /* Enable default signal handler for core dump */ | |
137 | zero(sa); | |
138 | sa.sa_handler = SIG_DFL; | |
abb26902 | 139 | sigaction(sig, &sa, NULL); |
97c4f35c LP |
140 | |
141 | /* Don't limit the core dump size */ | |
97c4f35c LP |
142 | rl.rlim_cur = RLIM_INFINITY; |
143 | rl.rlim_max = RLIM_INFINITY; | |
144 | setrlimit(RLIMIT_CORE, &rl); | |
145 | ||
146 | /* Just to be sure... */ | |
abb26902 | 147 | chdir("/"); |
97c4f35c LP |
148 | |
149 | /* Raise the signal again */ | |
150 | raise(sig); | |
151 | ||
152 | assert_not_reached("We shouldn't be here..."); | |
153 | _exit(1); | |
4fc935ca LP |
154 | |
155 | } else { | |
8e12a6ae LP |
156 | siginfo_t status; |
157 | int r; | |
4fc935ca LP |
158 | |
159 | /* Order things nicely. */ | |
e62d8c39 ZJS |
160 | r = wait_for_terminate(pid, &status); |
161 | if (r < 0) | |
7989e1f2 | 162 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); |
8e12a6ae | 163 | else if (status.si_code != CLD_DUMPED) |
7989e1f2 | 164 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 165 | else |
ccd06097 | 166 | log_error("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
97c4f35c LP |
167 | } |
168 | } | |
169 | ||
fa0f4d8a LP |
170 | if (arg_crash_chvt) |
171 | chvt(arg_crash_chvt); | |
601f6a1e | 172 | |
fa0f4d8a | 173 | if (arg_crash_shell) { |
b92bea5d ZJS |
174 | struct sigaction sa = { |
175 | .sa_handler = SIG_IGN, | |
176 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
177 | }; | |
6f5e3f35 | 178 | pid_t pid; |
8c43883a | 179 | |
4fc935ca LP |
180 | log_info("Executing crash shell in 10s..."); |
181 | sleep(10); | |
182 | ||
6f5e3f35 | 183 | /* Let the kernel reap children for us */ |
6f5e3f35 | 184 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
8c43883a | 185 | |
cd3bd60a LP |
186 | pid = fork(); |
187 | if (pid < 0) | |
14212119 | 188 | log_error("Failed to fork off crash shell: %m"); |
6f5e3f35 | 189 | else if (pid == 0) { |
cd3bd60a | 190 | make_console_stdio(); |
6f5e3f35 LP |
191 | execl("/bin/sh", "/bin/sh", NULL); |
192 | ||
14212119 | 193 | log_error("execl() failed: %m"); |
6f5e3f35 LP |
194 | _exit(1); |
195 | } | |
c99b188e | 196 | |
ccd06097 | 197 | log_info("Successfully spawned crash shell as pid "PID_FMT".", pid); |
4fc935ca LP |
198 | } |
199 | ||
200 | log_info("Freezing execution."); | |
97c4f35c LP |
201 | freeze(); |
202 | } | |
203 | ||
204 | static void install_crash_handler(void) { | |
b92bea5d ZJS |
205 | struct sigaction sa = { |
206 | .sa_handler = crash, | |
207 | .sa_flags = SA_NODEFER, | |
208 | }; | |
97c4f35c | 209 | |
1b91d3e8 | 210 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 211 | } |
f170852a | 212 | |
843d2643 LP |
213 | static int console_setup(bool do_reset) { |
214 | int tty_fd, r; | |
80876c20 | 215 | |
843d2643 LP |
216 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
217 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 218 | |
843d2643 LP |
219 | release_terminal(); |
220 | ||
221 | if (!do_reset) | |
222 | return 0; | |
80876c20 | 223 | |
512947d4 MS |
224 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
225 | if (tty_fd < 0) { | |
843d2643 LP |
226 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); |
227 | return -tty_fd; | |
228 | } | |
80876c20 | 229 | |
512947d4 MS |
230 | /* We don't want to force text mode. |
231 | * plymouth may be showing pictures already from initrd. */ | |
232 | r = reset_terminal_fd(tty_fd, false); | |
233 | if (r < 0) | |
843d2643 LP |
234 | log_error("Failed to reset /dev/console: %s", strerror(-r)); |
235 | ||
236 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
237 | return r; |
238 | } | |
239 | ||
f170852a LP |
240 | static int set_default_unit(const char *u) { |
241 | char *c; | |
242 | ||
243 | assert(u); | |
244 | ||
bf4df7c3 LP |
245 | c = strdup(u); |
246 | if (!c) | |
f170852a LP |
247 | return -ENOMEM; |
248 | ||
fa0f4d8a LP |
249 | free(arg_default_unit); |
250 | arg_default_unit = c; | |
bf4df7c3 | 251 | |
f170852a LP |
252 | return 0; |
253 | } | |
254 | ||
255 | static int parse_proc_cmdline_word(const char *word) { | |
256 | ||
257 | static const char * const rlmap[] = { | |
ed370f5d | 258 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 259 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
260 | "single", SPECIAL_RESCUE_TARGET, |
261 | "-s", SPECIAL_RESCUE_TARGET, | |
262 | "s", SPECIAL_RESCUE_TARGET, | |
263 | "S", SPECIAL_RESCUE_TARGET, | |
264 | "1", SPECIAL_RESCUE_TARGET, | |
265 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
266 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
267 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
268 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
269 | }; |
270 | ||
5192bd19 LP |
271 | assert(word); |
272 | ||
bf4df7c3 LP |
273 | if (startswith(word, "systemd.unit=")) { |
274 | ||
275 | if (!in_initrd()) | |
276 | return set_default_unit(word + 13); | |
277 | ||
278 | } else if (startswith(word, "rd.systemd.unit=")) { | |
279 | ||
280 | if (in_initrd()) | |
281 | return set_default_unit(word + 16); | |
f170852a | 282 | |
bf4df7c3 | 283 | } else if (startswith(word, "systemd.log_target=")) { |
f170852a LP |
284 | |
285 | if (log_set_target_from_string(word + 19) < 0) | |
286 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
287 | ||
288 | } else if (startswith(word, "systemd.log_level=")) { | |
289 | ||
290 | if (log_set_max_level_from_string(word + 18) < 0) | |
291 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
292 | ||
bbe63281 LP |
293 | } else if (startswith(word, "systemd.log_color=")) { |
294 | ||
295 | if (log_show_color_from_string(word + 18) < 0) | |
296 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
297 | ||
298 | } else if (startswith(word, "systemd.log_location=")) { | |
299 | ||
300 | if (log_show_location_from_string(word + 21) < 0) | |
301 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
302 | ||
4fc935ca LP |
303 | } else if (startswith(word, "systemd.dump_core=")) { |
304 | int r; | |
305 | ||
306 | if ((r = parse_boolean(word + 18)) < 0) | |
509b6efb | 307 | log_warning("Failed to parse dump core switch %s. Ignoring.", word + 18); |
4fc935ca | 308 | else |
fa0f4d8a | 309 | arg_dump_core = r; |
4fc935ca LP |
310 | |
311 | } else if (startswith(word, "systemd.crash_shell=")) { | |
312 | int r; | |
313 | ||
314 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 315 | log_warning("Failed to parse crash shell switch %s. Ignoring.", word + 20); |
4fc935ca | 316 | else |
fa0f4d8a | 317 | arg_crash_shell = r; |
5e7ee61c LP |
318 | |
319 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
320 | int r; | |
321 | ||
322 | if ((r = parse_boolean(word + 22)) < 0) | |
509b6efb | 323 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", word + 22); |
5e7ee61c | 324 | else |
fa0f4d8a | 325 | arg_confirm_spawn = r; |
5e7ee61c | 326 | |
601f6a1e LP |
327 | } else if (startswith(word, "systemd.crash_chvt=")) { |
328 | int k; | |
329 | ||
330 | if (safe_atoi(word + 19, &k) < 0) | |
509b6efb | 331 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", word + 19); |
601f6a1e | 332 | else |
fa0f4d8a | 333 | arg_crash_chvt = k; |
601f6a1e | 334 | |
9e58ff9c LP |
335 | } else if (startswith(word, "systemd.show_status=")) { |
336 | int r; | |
337 | ||
d450b6f2 ZJS |
338 | r = parse_show_status(word + 20, &arg_show_status); |
339 | if (r < 0) | |
509b6efb | 340 | log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); |
0a494f1f LP |
341 | } else if (startswith(word, "systemd.default_standard_output=")) { |
342 | int r; | |
343 | ||
344 | if ((r = exec_output_from_string(word + 32)) < 0) | |
509b6efb | 345 | log_warning("Failed to parse default standard output switch %s. Ignoring.", word + 32); |
0a494f1f LP |
346 | else |
347 | arg_default_std_output = r; | |
348 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
349 | int r; | |
350 | ||
351 | if ((r = exec_output_from_string(word + 31)) < 0) | |
509b6efb | 352 | log_warning("Failed to parse default standard error switch %s. Ignoring.", word + 31); |
0a494f1f LP |
353 | else |
354 | arg_default_std_error = r; | |
9e7c5357 | 355 | } else if (startswith(word, "systemd.setenv=")) { |
0c4025d1 | 356 | _cleanup_free_ char *cenv = NULL; |
9e7c5357 WD |
357 | |
358 | cenv = strdup(word + 15); | |
359 | if (!cenv) | |
360 | return -ENOMEM; | |
361 | ||
e21fea24 KS |
362 | if (env_assignment_is_valid(cenv)) { |
363 | char **env; | |
364 | ||
365 | env = strv_env_set(arg_default_environment, cenv); | |
366 | if (env) | |
367 | arg_default_environment = env; | |
368 | else | |
369 | log_warning("Setting environment variable '%s' failed, ignoring: %m", cenv); | |
370 | } else | |
371 | log_warning("Environment variable name '%s' is not valid. Ignoring.", cenv); | |
9e58ff9c | 372 | |
66a78c2b LP |
373 | } else if (startswith(word, "systemd.") || |
374 | (in_initrd() && startswith(word, "rd.systemd."))) { | |
4fc935ca | 375 | |
dd7c30c3 LP |
376 | const char *c; |
377 | ||
378 | /* Ignore systemd.journald.xyz and friends */ | |
379 | c = word; | |
380 | if (startswith(c, "rd.")) | |
381 | c += 3; | |
382 | if (startswith(c, "systemd.")) | |
383 | c += 8; | |
384 | if (c[strcspn(c, ".=")] != '.') { | |
385 | ||
386 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
387 | ||
388 | log_info("Supported kernel switches:\n" | |
389 | "systemd.unit=UNIT Default unit to start\n" | |
390 | "rd.systemd.unit=UNIT Default unit to start when run in initrd\n" | |
391 | "systemd.dump_core=0|1 Dump core on crash\n" | |
392 | "systemd.crash_shell=0|1 Run shell on crash\n" | |
393 | "systemd.crash_chvt=N Change to VT #N on crash\n" | |
394 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" | |
d450b6f2 | 395 | "systemd.show_status=0|1|auto Show status updates on the console during bootup\n" |
dd7c30c3 LP |
396 | "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n" |
397 | " Log target\n" | |
398 | "systemd.log_level=LEVEL Log level\n" | |
399 | "systemd.log_color=0|1 Highlight important log messages\n" | |
400 | "systemd.log_location=0|1 Include code location in log messages\n" | |
401 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" | |
402 | " Set default log output for services\n" | |
403 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" | |
404 | " Set default log error output for services\n" | |
405 | "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n"); | |
406 | } | |
4fc935ca | 407 | |
d450b6f2 ZJS |
408 | } else if (streq(word, "quiet")) { |
409 | if (arg_show_status == SHOW_STATUS_UNSET) | |
410 | arg_show_status = SHOW_STATUS_AUTO; | |
411 | } else if (streq(word, "debug")) { | |
bd6d2963 KS |
412 | /* Log to kmsg, the journal socket will fill up before the |
413 | * journal is started and tools running during that time | |
414 | * will block with every log message for for 60 seconds, | |
415 | * before they give up. */ | |
9749cd77 | 416 | log_set_max_level(LOG_DEBUG); |
220ec97a | 417 | log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_CONSOLE : LOG_TARGET_KMSG); |
bd6d2963 | 418 | } else if (!in_initrd()) { |
f170852a LP |
419 | unsigned i; |
420 | ||
421 | /* SysV compatibility */ | |
f170852a LP |
422 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
423 | if (streq(word, rlmap[i])) | |
424 | return set_default_unit(rlmap[i+1]); | |
425 | } | |
426 | ||
427 | return 0; | |
428 | } | |
429 | ||
e8e581bf ZJS |
430 | #define DEFINE_SETTER(name, func, descr) \ |
431 | static int name(const char *unit, \ | |
432 | const char *filename, \ | |
433 | unsigned line, \ | |
434 | const char *section, \ | |
71a61510 | 435 | unsigned section_line, \ |
e8e581bf ZJS |
436 | const char *lvalue, \ |
437 | int ltype, \ | |
438 | const char *rvalue, \ | |
439 | void *data, \ | |
440 | void *userdata) { \ | |
441 | \ | |
442 | int r; \ | |
443 | \ | |
444 | assert(filename); \ | |
445 | assert(lvalue); \ | |
446 | assert(rvalue); \ | |
447 | \ | |
448 | r = func(rvalue); \ | |
449 | if (r < 0) \ | |
450 | log_syntax(unit, LOG_ERR, filename, line, -r, \ | |
451 | "Invalid " descr "'%s': %s", \ | |
452 | rvalue, strerror(-r)); \ | |
453 | \ | |
454 | return 0; \ | |
455 | } | |
487393e9 | 456 | |
e8e581bf ZJS |
457 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") |
458 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
459 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
460 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
487393e9 | 461 | |
e8e581bf ZJS |
462 | static int config_parse_cpu_affinity2(const char *unit, |
463 | const char *filename, | |
464 | unsigned line, | |
465 | const char *section, | |
71a61510 | 466 | unsigned section_line, |
e8e581bf ZJS |
467 | const char *lvalue, |
468 | int ltype, | |
469 | const char *rvalue, | |
470 | void *data, | |
471 | void *userdata) { | |
487393e9 LP |
472 | |
473 | char *w; | |
474 | size_t l; | |
475 | char *state; | |
476 | cpu_set_t *c = NULL; | |
477 | unsigned ncpus = 0; | |
478 | ||
479 | assert(filename); | |
480 | assert(lvalue); | |
481 | assert(rvalue); | |
482 | ||
f60f22df | 483 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
484 | char *t; |
485 | int r; | |
486 | unsigned cpu; | |
487 | ||
488 | if (!(t = strndup(w, l))) | |
14212119 | 489 | return log_oom(); |
487393e9 LP |
490 | |
491 | r = safe_atou(t, &cpu); | |
492 | free(t); | |
493 | ||
494 | if (!c) | |
495 | if (!(c = cpu_set_malloc(&ncpus))) | |
14212119 | 496 | return log_oom(); |
487393e9 LP |
497 | |
498 | if (r < 0 || cpu >= ncpus) { | |
e8e581bf ZJS |
499 | log_syntax(unit, LOG_ERR, filename, line, -r, |
500 | "Failed to parse CPU affinity '%s'", rvalue); | |
487393e9 LP |
501 | CPU_FREE(c); |
502 | return -EBADMSG; | |
503 | } | |
504 | ||
505 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
506 | } | |
507 | ||
508 | if (c) { | |
509 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
e8e581bf | 510 | log_warning_unit(unit, "Failed to set CPU affinity: %m"); |
487393e9 LP |
511 | |
512 | CPU_FREE(c); | |
513 | } | |
514 | ||
515 | return 0; | |
516 | } | |
517 | ||
0c85a4f3 LP |
518 | static void strv_free_free(char ***l) { |
519 | char ***i; | |
520 | ||
521 | if (!l) | |
522 | return; | |
523 | ||
524 | for (i = l; *i; i++) | |
525 | strv_free(*i); | |
526 | ||
527 | free(l); | |
528 | } | |
529 | ||
530 | static void free_join_controllers(void) { | |
0c85a4f3 LP |
531 | strv_free_free(arg_join_controllers); |
532 | arg_join_controllers = NULL; | |
533 | } | |
534 | ||
e8e581bf ZJS |
535 | static int config_parse_join_controllers(const char *unit, |
536 | const char *filename, | |
537 | unsigned line, | |
538 | const char *section, | |
71a61510 | 539 | unsigned section_line, |
e8e581bf ZJS |
540 | const char *lvalue, |
541 | int ltype, | |
542 | const char *rvalue, | |
543 | void *data, | |
544 | void *userdata) { | |
0c85a4f3 LP |
545 | |
546 | unsigned n = 0; | |
547 | char *state, *w; | |
548 | size_t length; | |
549 | ||
550 | assert(filename); | |
551 | assert(lvalue); | |
552 | assert(rvalue); | |
553 | ||
554 | free_join_controllers(); | |
555 | ||
556 | FOREACH_WORD_QUOTED(w, length, rvalue, state) { | |
557 | char *s, **l; | |
558 | ||
559 | s = strndup(w, length); | |
560 | if (!s) | |
14212119 | 561 | return log_oom(); |
0c85a4f3 LP |
562 | |
563 | l = strv_split(s, ","); | |
564 | free(s); | |
565 | ||
566 | strv_uniq(l); | |
567 | ||
568 | if (strv_length(l) <= 1) { | |
569 | strv_free(l); | |
570 | continue; | |
571 | } | |
572 | ||
573 | if (!arg_join_controllers) { | |
574 | arg_join_controllers = new(char**, 2); | |
575 | if (!arg_join_controllers) { | |
576 | strv_free(l); | |
14212119 | 577 | return log_oom(); |
0c85a4f3 LP |
578 | } |
579 | ||
580 | arg_join_controllers[0] = l; | |
581 | arg_join_controllers[1] = NULL; | |
582 | ||
583 | n = 1; | |
584 | } else { | |
585 | char ***a; | |
586 | char ***t; | |
587 | ||
588 | t = new0(char**, n+2); | |
589 | if (!t) { | |
590 | strv_free(l); | |
14212119 | 591 | return log_oom(); |
0c85a4f3 LP |
592 | } |
593 | ||
594 | n = 0; | |
595 | ||
596 | for (a = arg_join_controllers; *a; a++) { | |
597 | ||
598 | if (strv_overlap(*a, l)) { | |
e3e45d4f | 599 | if (strv_extend_strv(&l, *a) < 0) { |
0c85a4f3 LP |
600 | strv_free(l); |
601 | strv_free_free(t); | |
14212119 | 602 | return log_oom(); |
0c85a4f3 LP |
603 | } |
604 | ||
0c85a4f3 LP |
605 | } else { |
606 | char **c; | |
607 | ||
608 | c = strv_copy(*a); | |
609 | if (!c) { | |
610 | strv_free(l); | |
611 | strv_free_free(t); | |
14212119 | 612 | return log_oom(); |
0c85a4f3 LP |
613 | } |
614 | ||
615 | t[n++] = c; | |
616 | } | |
617 | } | |
618 | ||
619 | t[n++] = strv_uniq(l); | |
620 | ||
621 | strv_free_free(arg_join_controllers); | |
622 | arg_join_controllers = t; | |
623 | } | |
624 | } | |
625 | ||
626 | return 0; | |
627 | } | |
628 | ||
487393e9 LP |
629 | static int parse_config_file(void) { |
630 | ||
f975e971 | 631 | const ConfigTableItem items[] = { |
d3b1c508 LP |
632 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
633 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
634 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
635 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
636 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
637 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
638 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, | |
639 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, | |
640 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
641 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
642 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
643 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
644 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, | |
89fffa27 | 645 | #ifdef HAVE_SECCOMP |
d3b1c508 | 646 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
89fffa27 | 647 | #endif |
d3b1c508 LP |
648 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
649 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, | |
650 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
651 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
652 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
653 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
654 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, | |
655 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, | |
656 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
657 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, | |
658 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, | |
659 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, | |
660 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, | |
661 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, | |
662 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, | |
663 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, | |
664 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, | |
665 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, | |
666 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, | |
667 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, | |
668 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, | |
669 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, | |
670 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, | |
671 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, | |
672 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, | |
673 | {} | |
487393e9 LP |
674 | }; |
675 | ||
7fd1b19b | 676 | _cleanup_fclose_ FILE *f; |
487393e9 LP |
677 | const char *fn; |
678 | int r; | |
679 | ||
19adb8a3 | 680 | fn = arg_running_as == SYSTEMD_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf"; |
f975e971 LP |
681 | f = fopen(fn, "re"); |
682 | if (!f) { | |
487393e9 LP |
683 | if (errno == ENOENT) |
684 | return 0; | |
685 | ||
686 | log_warning("Failed to open configuration file '%s': %m", fn); | |
687 | return 0; | |
688 | } | |
689 | ||
db5c0122 | 690 | r = config_parse(NULL, fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, false, NULL); |
f975e971 | 691 | if (r < 0) |
487393e9 LP |
692 | log_warning("Failed to parse configuration file: %s", strerror(-r)); |
693 | ||
487393e9 LP |
694 | return 0; |
695 | } | |
696 | ||
f170852a LP |
697 | static int parse_argv(int argc, char *argv[]) { |
698 | ||
699 | enum { | |
700 | ARG_LOG_LEVEL = 0x100, | |
701 | ARG_LOG_TARGET, | |
bbe63281 LP |
702 | ARG_LOG_COLOR, |
703 | ARG_LOG_LOCATION, | |
2f198e2f | 704 | ARG_UNIT, |
edb9aaa8 | 705 | ARG_SYSTEM, |
af2d49f7 | 706 | ARG_USER, |
e537352b | 707 | ARG_TEST, |
9ba0bc4e | 708 | ARG_VERSION, |
80876c20 | 709 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
710 | ARG_DUMP_CORE, |
711 | ARG_CRASH_SHELL, | |
a16e1123 | 712 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 713 | ARG_SHOW_STATUS, |
4288f619 | 714 | ARG_DESERIALIZE, |
2660882b | 715 | ARG_SWITCHED_ROOT, |
0a494f1f LP |
716 | ARG_DEFAULT_STD_OUTPUT, |
717 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
718 | }; |
719 | ||
720 | static const struct option options[] = { | |
a16e1123 LP |
721 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
722 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
723 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
724 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 725 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 726 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 727 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
728 | { "test", no_argument, NULL, ARG_TEST }, |
729 | { "help", no_argument, NULL, 'h' }, | |
9ba0bc4e | 730 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 731 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 LP |
732 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
733 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
734 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 735 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 736 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 737 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
0a494f1f LP |
738 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
739 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 740 | { NULL, 0, NULL, 0 } |
f170852a LP |
741 | }; |
742 | ||
743 | int c, r; | |
744 | ||
745 | assert(argc >= 1); | |
746 | assert(argv); | |
747 | ||
b770165a LP |
748 | if (getpid() == 1) |
749 | opterr = 0; | |
750 | ||
099663ff | 751 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
752 | |
753 | switch (c) { | |
754 | ||
755 | case ARG_LOG_LEVEL: | |
756 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
757 | log_error("Failed to parse log level %s.", optarg); | |
758 | return r; | |
759 | } | |
760 | ||
761 | break; | |
762 | ||
763 | case ARG_LOG_TARGET: | |
764 | ||
765 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
766 | log_error("Failed to parse log target %s.", optarg); | |
767 | return r; | |
768 | } | |
769 | ||
770 | break; | |
771 | ||
bbe63281 LP |
772 | case ARG_LOG_COLOR: |
773 | ||
d0b170c8 LP |
774 | if (optarg) { |
775 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
776 | log_error("Failed to parse log color setting %s.", optarg); | |
777 | return r; | |
778 | } | |
779 | } else | |
780 | log_show_color(true); | |
bbe63281 LP |
781 | |
782 | break; | |
783 | ||
784 | case ARG_LOG_LOCATION: | |
785 | ||
d0b170c8 LP |
786 | if (optarg) { |
787 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
788 | log_error("Failed to parse log location setting %s.", optarg); | |
789 | return r; | |
790 | } | |
791 | } else | |
792 | log_show_location(true); | |
bbe63281 LP |
793 | |
794 | break; | |
795 | ||
0a494f1f LP |
796 | case ARG_DEFAULT_STD_OUTPUT: |
797 | ||
798 | if ((r = exec_output_from_string(optarg)) < 0) { | |
799 | log_error("Failed to parse default standard output setting %s.", optarg); | |
800 | return r; | |
801 | } else | |
802 | arg_default_std_output = r; | |
803 | break; | |
804 | ||
805 | case ARG_DEFAULT_STD_ERROR: | |
806 | ||
807 | if ((r = exec_output_from_string(optarg)) < 0) { | |
808 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
809 | return r; | |
810 | } else | |
811 | arg_default_std_error = r; | |
812 | break; | |
813 | ||
2f198e2f | 814 | case ARG_UNIT: |
f170852a LP |
815 | |
816 | if ((r = set_default_unit(optarg)) < 0) { | |
817 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
818 | return r; | |
819 | } | |
820 | ||
821 | break; | |
822 | ||
edb9aaa8 | 823 | case ARG_SYSTEM: |
67445f4e | 824 | arg_running_as = SYSTEMD_SYSTEM; |
edb9aaa8 | 825 | break; |
a5dab5ce | 826 | |
af2d49f7 | 827 | case ARG_USER: |
67445f4e | 828 | arg_running_as = SYSTEMD_USER; |
a5dab5ce | 829 | break; |
a5dab5ce | 830 | |
e965d56d | 831 | case ARG_TEST: |
fa0f4d8a | 832 | arg_action = ACTION_TEST; |
e965d56d LP |
833 | break; |
834 | ||
9ba0bc4e ZJS |
835 | case ARG_VERSION: |
836 | arg_action = ACTION_VERSION; | |
837 | break; | |
838 | ||
e537352b | 839 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 840 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
841 | break; |
842 | ||
9e58ff9c | 843 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
844 | r = optarg ? parse_boolean(optarg) : 1; |
845 | if (r < 0) { | |
846 | log_error("Failed to parse dump core boolean %s.", optarg); | |
847 | return r; | |
848 | } | |
849 | arg_dump_core = r; | |
9e58ff9c LP |
850 | break; |
851 | ||
852 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
853 | r = optarg ? parse_boolean(optarg) : 1; |
854 | if (r < 0) { | |
855 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
856 | return r; | |
857 | } | |
858 | arg_crash_shell = r; | |
9e58ff9c LP |
859 | break; |
860 | ||
80876c20 | 861 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
862 | r = optarg ? parse_boolean(optarg) : 1; |
863 | if (r < 0) { | |
864 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
865 | return r; | |
866 | } | |
867 | arg_confirm_spawn = r; | |
80876c20 LP |
868 | break; |
869 | ||
9e58ff9c | 870 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
871 | if (optarg) { |
872 | r = parse_show_status(optarg, &arg_show_status); | |
873 | if (r < 0) { | |
874 | log_error("Failed to parse show status boolean %s.", optarg); | |
875 | return r; | |
876 | } | |
877 | } else | |
878 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 879 | break; |
a5d87bf0 | 880 | |
a16e1123 LP |
881 | case ARG_DESERIALIZE: { |
882 | int fd; | |
883 | FILE *f; | |
884 | ||
01e10de3 LP |
885 | r = safe_atoi(optarg, &fd); |
886 | if (r < 0 || fd < 0) { | |
a16e1123 | 887 | log_error("Failed to parse deserialize option %s.", optarg); |
01e10de3 | 888 | return r < 0 ? r : -EINVAL; |
a16e1123 LP |
889 | } |
890 | ||
01e10de3 LP |
891 | fd_cloexec(fd, true); |
892 | ||
893 | f = fdopen(fd, "r"); | |
894 | if (!f) { | |
a16e1123 | 895 | log_error("Failed to open serialization fd: %m"); |
01e10de3 | 896 | return -errno; |
a16e1123 LP |
897 | } |
898 | ||
d3b1c508 LP |
899 | if (arg_serialization) |
900 | fclose(arg_serialization); | |
a16e1123 | 901 | |
d3b1c508 | 902 | arg_serialization = f; |
a16e1123 LP |
903 | |
904 | break; | |
905 | } | |
906 | ||
2660882b | 907 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 908 | arg_switched_root = true; |
d03bc1b8 HH |
909 | break; |
910 | ||
f170852a | 911 | case 'h': |
fa0f4d8a | 912 | arg_action = ACTION_HELP; |
f170852a LP |
913 | break; |
914 | ||
1d2e23ab LP |
915 | case 'D': |
916 | log_set_max_level(LOG_DEBUG); | |
917 | break; | |
918 | ||
099663ff LP |
919 | case 'b': |
920 | case 's': | |
921 | case 'z': | |
922 | /* Just to eat away the sysvinit kernel | |
923 | * cmdline args without getopt() error | |
924 | * messages that we'll parse in | |
925 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 926 | |
099663ff | 927 | case '?': |
f170852a | 928 | default: |
099663ff LP |
929 | if (getpid() != 1) { |
930 | log_error("Unknown option code %c", c); | |
931 | return -EINVAL; | |
932 | } | |
933 | ||
934 | break; | |
f170852a LP |
935 | } |
936 | ||
d821e6d6 LP |
937 | if (optind < argc && getpid() != 1) { |
938 | /* Hmm, when we aren't run as init system | |
939 | * let's complain about excess arguments */ | |
940 | ||
941 | log_error("Excess arguments."); | |
942 | return -EINVAL; | |
943 | } | |
944 | ||
945 | if (detect_container(NULL) > 0) { | |
946 | char **a; | |
947 | ||
948 | /* All /proc/cmdline arguments the kernel didn't | |
949 | * understand it passed to us. We're not really | |
950 | * interested in that usually since /proc/cmdline is | |
951 | * more interesting and complete. With one exception: | |
952 | * if we are run in a container /proc/cmdline is not | |
953 | * relevant for the container, hence we rely on argv[] | |
954 | * instead. */ | |
955 | ||
74df0fca LP |
956 | for (a = argv; a < argv + argc; a++) { |
957 | r = parse_proc_cmdline_word(*a); | |
958 | if (r < 0) { | |
14212119 | 959 | log_error("Failed on cmdline argument %s: %s", *a, strerror(-r)); |
d821e6d6 | 960 | return r; |
14212119 | 961 | } |
74df0fca | 962 | } |
51f0e189 LP |
963 | } |
964 | ||
f170852a LP |
965 | return 0; |
966 | } | |
967 | ||
968 | static int help(void) { | |
969 | ||
2e33c433 | 970 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 971 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 972 | " -h --help Show this help\n" |
e537352b | 973 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 974 | " --dump-configuration-items Dump understood unit configuration items\n" |
9e58ff9c | 975 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 976 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 977 | " --user Run a user instance\n" |
a5d87bf0 LP |
978 | " --dump-core[=0|1] Dump core on crash\n" |
979 | " --crash-shell[=0|1] Run shell on crash\n" | |
980 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 981 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
4cfa2c99 | 982 | " --log-target=TARGET Set log target (console, journal, syslog, kmsg, journal-or-kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 983 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 984 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
985 | " --log-location[=0|1] Include code location in log messages\n" |
986 | " --default-standard-output= Set default standard output for services\n" | |
987 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 988 | program_invocation_short_name); |
f170852a LP |
989 | |
990 | return 0; | |
991 | } | |
992 | ||
9ba0bc4e ZJS |
993 | static int version(void) { |
994 | puts(PACKAGE_STRING); | |
9ba0bc4e ZJS |
995 | puts(SYSTEMD_FEATURES); |
996 | ||
997 | return 0; | |
998 | } | |
999 | ||
b3680f49 | 1000 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
a16e1123 LP |
1001 | FILE *f = NULL; |
1002 | FDSet *fds = NULL; | |
1003 | int r; | |
1004 | ||
1005 | assert(m); | |
1006 | assert(_f); | |
1007 | assert(_fds); | |
1008 | ||
6b78f9b4 LP |
1009 | r = manager_open_serialization(m, &f); |
1010 | if (r < 0) { | |
35b8ca3a | 1011 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
1012 | goto fail; |
1013 | } | |
1014 | ||
71445ae7 LP |
1015 | /* Make sure nothing is really destructed when we shut down */ |
1016 | m->n_reloading ++; | |
718db961 | 1017 | bus_manager_send_reloading(m, true); |
71445ae7 | 1018 | |
6b78f9b4 LP |
1019 | fds = fdset_new(); |
1020 | if (!fds) { | |
a16e1123 LP |
1021 | r = -ENOMEM; |
1022 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1023 | goto fail; | |
1024 | } | |
1025 | ||
b3680f49 | 1026 | r = manager_serialize(m, f, fds, switching_root); |
6b78f9b4 | 1027 | if (r < 0) { |
a16e1123 LP |
1028 | log_error("Failed to serialize state: %s", strerror(-r)); |
1029 | goto fail; | |
1030 | } | |
1031 | ||
1032 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
1033 | log_error("Failed to rewind serialization fd: %m"); | |
1034 | goto fail; | |
1035 | } | |
1036 | ||
6b78f9b4 LP |
1037 | r = fd_cloexec(fileno(f), false); |
1038 | if (r < 0) { | |
a16e1123 LP |
1039 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); |
1040 | goto fail; | |
1041 | } | |
1042 | ||
6b78f9b4 LP |
1043 | r = fdset_cloexec(fds, false); |
1044 | if (r < 0) { | |
a16e1123 LP |
1045 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); |
1046 | goto fail; | |
1047 | } | |
1048 | ||
1049 | *_f = f; | |
1050 | *_fds = fds; | |
1051 | ||
1052 | return 0; | |
1053 | ||
1054 | fail: | |
1055 | fdset_free(fds); | |
1056 | ||
1057 | if (f) | |
1058 | fclose(f); | |
1059 | ||
1060 | return r; | |
1061 | } | |
1062 | ||
4096d6f5 LP |
1063 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1064 | struct rlimit nl; | |
1065 | int r; | |
1066 | ||
1067 | assert(saved_rlimit); | |
1068 | ||
1069 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1070 | * later when transitioning from the initrd to the main | |
1071 | * systemd or suchlike. */ | |
1072 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) { | |
1073 | log_error("Reading RLIMIT_NOFILE failed: %m"); | |
1074 | return -errno; | |
1075 | } | |
1076 | ||
1077 | /* Make sure forked processes get the default kernel setting */ | |
1078 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1079 | struct rlimit *rl; | |
1080 | ||
1081 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1082 | if (!rl) | |
1083 | return log_oom(); | |
1084 | ||
1085 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1086 | } | |
1087 | ||
1088 | /* Bump up the resource limit for ourselves substantially */ | |
1089 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1090 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
1091 | if (r < 0) { | |
1092 | log_error("Setting RLIMIT_NOFILE failed: %s", strerror(-r)); | |
1093 | return r; | |
1094 | } | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
6ee5bbf8 LP |
1099 | static void test_mtab(void) { |
1100 | char *p; | |
1101 | ||
80758717 LP |
1102 | /* Check that /etc/mtab is a symlink */ |
1103 | ||
6ee5bbf8 LP |
1104 | if (readlink_malloc("/etc/mtab", &p) >= 0) { |
1105 | bool b; | |
1106 | ||
ed86ebc4 | 1107 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
1108 | free(p); |
1109 | ||
1110 | if (b) | |
1111 | return; | |
1112 | } | |
1113 | ||
80758717 LP |
1114 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1115 | "This is not supported anymore. " | |
1116 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1117 | } | |
1118 | ||
1119 | static void test_usr(void) { | |
80758717 | 1120 | |
ed1c99fc | 1121 | /* Check that /usr is not a separate fs */ |
80758717 | 1122 | |
871c44a7 LP |
1123 | if (dir_is_empty("/usr") <= 0) |
1124 | return; | |
1125 | ||
2376ce13 | 1126 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1127 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1128 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1129 | } | |
1130 | ||
1131 | static void test_cgroups(void) { | |
1132 | ||
1133 | if (access("/proc/cgroups", F_OK) >= 0) | |
1134 | return; | |
1135 | ||
1136 | log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " | |
1137 | "Systems without control groups are not supported. " | |
1138 | "We will now sleep for 10s, and then continue boot-up. " | |
1139 | "Expect breakage and please do not file bugs. " | |
966a5d37 LP |
1140 | "Instead fix your kernel and enable CONFIG_CGROUPS. " |
1141 | "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information."); | |
871c44a7 LP |
1142 | |
1143 | sleep(10); | |
6ee5bbf8 LP |
1144 | } |
1145 | ||
a07fdfa3 LP |
1146 | static int initialize_join_controllers(void) { |
1147 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1148 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
1149 | * "cpuset" does't really work for groups with no initialized | |
1150 | * attributes. */ | |
1151 | ||
1152 | arg_join_controllers = new(char**, 3); | |
1153 | if (!arg_join_controllers) | |
1154 | return -ENOMEM; | |
1155 | ||
1156 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
a07fdfa3 | 1157 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
a6b26d90 ZJS |
1158 | arg_join_controllers[2] = NULL; |
1159 | ||
1160 | if (!arg_join_controllers[0] || !arg_join_controllers[1]) { | |
1161 | free_join_controllers(); | |
a07fdfa3 | 1162 | return -ENOMEM; |
a6b26d90 | 1163 | } |
a07fdfa3 | 1164 | |
a07fdfa3 LP |
1165 | return 0; |
1166 | } | |
1167 | ||
d3b1c508 LP |
1168 | static int enforce_syscall_archs(Set *archs) { |
1169 | #ifdef HAVE_SECCOMP | |
1170 | scmp_filter_ctx *seccomp; | |
1171 | Iterator i; | |
1172 | void *id; | |
1173 | int r; | |
1174 | ||
1175 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1176 | if (!seccomp) | |
1177 | return log_oom(); | |
1178 | ||
1179 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1180 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1181 | if (r == -EEXIST) | |
1182 | continue; | |
1183 | if (r < 0) { | |
1184 | log_error("Failed to add architecture to seccomp: %s", strerror(-r)); | |
1185 | goto finish; | |
1186 | } | |
1187 | } | |
1188 | ||
1189 | r = seccomp_load(seccomp); | |
1190 | if (r < 0) | |
1191 | log_error("Failed to add install architecture seccomp: %s", strerror(-r)); | |
1192 | ||
1193 | finish: | |
1194 | seccomp_release(seccomp); | |
1195 | return r; | |
1196 | #else | |
1197 | return 0; | |
1198 | #endif | |
1199 | } | |
1200 | ||
60918275 LP |
1201 | int main(int argc, char *argv[]) { |
1202 | Manager *m = NULL; | |
22f4096c | 1203 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1204 | usec_t before_startup, after_startup; |
1205 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1206 | FDSet *fds = NULL; |
1207 | bool reexecute = false; | |
b9080b03 | 1208 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1209 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
c3a170f3 HH |
1210 | dual_timestamp userspace_timestamp = { 0ULL, 0ULL }; |
1211 | dual_timestamp kernel_timestamp = { 0ULL, 0ULL }; | |
c2e0d600 TA |
1212 | dual_timestamp security_start_timestamp = { 0ULL, 0ULL }; |
1213 | dual_timestamp security_finish_timestamp = { 0ULL, 0ULL }; | |
5d6b1584 | 1214 | static char systemd[] = "systemd"; |
2660882b | 1215 | bool skip_setup = false; |
d3b1c508 | 1216 | unsigned j; |
0b3325e7 | 1217 | bool loaded_policy = false; |
e96d6be7 | 1218 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1219 | bool queue_default_job = false; |
41669317 | 1220 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
4096d6f5 | 1221 | static struct rlimit saved_rlimit_nofile = { 0, 0 }; |
27b14a22 | 1222 | |
058dc6f3 | 1223 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1224 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1225 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1226 | * calling init as a user is identical to telinit. */ |
1227 | ||
1228 | errno = -ENOENT; | |
1229 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1230 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1231 | return 1; | |
1232 | } | |
058dc6f3 | 1233 | #endif |
2cb1a60d | 1234 | |
c3a170f3 HH |
1235 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
1236 | dual_timestamp_get(&userspace_timestamp); | |
1237 | ||
0b3325e7 LP |
1238 | /* Determine if this is a reexecution or normal bootup. We do |
1239 | * the full command line parsing much later, so let's just | |
1240 | * have a quick peek here. */ | |
db813c2a LP |
1241 | if (strv_find(argv+1, "--deserialize")) |
1242 | skip_setup = true; | |
0b3325e7 | 1243 | |
2660882b LP |
1244 | /* If we have switched root, do all the special setup |
1245 | * things */ | |
db813c2a LP |
1246 | if (strv_find(argv+1, "--switched-root")) |
1247 | skip_setup = false; | |
d03bc1b8 | 1248 | |
f3b6a3ed LP |
1249 | /* If we get started via the /sbin/init symlink then we are |
1250 | called 'init'. After a subsequent reexecution we are then | |
1251 | called 'systemd'. That is confusing, hence let's call us | |
1252 | systemd right-away. */ | |
f3b6a3ed LP |
1253 | program_invocation_short_name = systemd; |
1254 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1255 | |
9a0e6896 LP |
1256 | saved_argv = argv; |
1257 | saved_argc = argc; | |
f3b6a3ed | 1258 | |
2cc59dbf | 1259 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1260 | |
90dc8c2e MG |
1261 | /* Disable the umask logic */ |
1262 | if (getpid() == 1) | |
1263 | umask(0); | |
1264 | ||
a866073d | 1265 | if (getpid() == 1 && detect_container(NULL) <= 0) { |
4f8d551f | 1266 | |
a866073d | 1267 | /* Running outside of a container as PID 1 */ |
67445f4e | 1268 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1269 | make_null_stdio(); |
1270 | log_set_target(LOG_TARGET_KMSG); | |
1271 | log_open(); | |
1272 | ||
21bf2ab0 | 1273 | if (in_initrd()) |
c3a170f3 | 1274 | initrd_timestamp = userspace_timestamp; |
c3ba6250 | 1275 | |
2660882b | 1276 | if (!skip_setup) { |
8f838d8a | 1277 | mount_setup_early(); |
c2e0d600 | 1278 | dual_timestamp_get(&security_start_timestamp); |
0b3325e7 LP |
1279 | if (selinux_setup(&loaded_policy) < 0) |
1280 | goto finish; | |
81611586 RS |
1281 | if (ima_setup() < 0) |
1282 | goto finish; | |
ffbd2c4d NC |
1283 | if (smack_setup() < 0) |
1284 | goto finish; | |
c2e0d600 | 1285 | dual_timestamp_get(&security_finish_timestamp); |
81611586 | 1286 | } |
0b3325e7 | 1287 | |
e9a5ef7c | 1288 | if (label_init(NULL) < 0) |
0ff4cdd9 | 1289 | goto finish; |
7948c4df | 1290 | |
72edcff5 | 1291 | if (!skip_setup) { |
0b3325e7 LP |
1292 | if (hwclock_is_localtime() > 0) { |
1293 | int min; | |
7948c4df | 1294 | |
72edcff5 KS |
1295 | /* The first-time call to settimeofday() does a time warp in the kernel */ |
1296 | r = hwclock_set_timezone(&min); | |
0b3325e7 LP |
1297 | if (r < 0) |
1298 | log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); | |
1299 | else | |
1300 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1301 | } else if (!in_initrd()) { |
1302 | /* | |
1303 | * Do dummy first-time call to seal the kernel's time warp magic | |
1304 | * | |
1305 | * Do not call this this from inside the initrd. The initrd might not | |
1306 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1307 | * that way. In such case, we need to delay the time-warp or the sealing | |
1308 | * until we reach the real system. | |
1309 | */ | |
72edcff5 | 1310 | hwclock_reset_timezone(); |
871e5809 | 1311 | |
e9dd9f95 | 1312 | /* Tell the kernel our timezone */ |
72edcff5 KS |
1313 | r = hwclock_set_timezone(NULL); |
1314 | if (r < 0) | |
e9dd9f95 | 1315 | log_error("Failed to set the kernel's timezone, ignoring: %s", strerror(-r)); |
72edcff5 KS |
1316 | } |
1317 | } | |
a866073d LP |
1318 | |
1319 | /* Set the default for later on, but don't actually | |
1320 | * open the logs like this for now. Note that if we | |
1321 | * are transitioning from the initrd there might still | |
1322 | * be journal fd open, and we shouldn't attempt | |
1323 | * opening that before we parsed /proc/cmdline which | |
1324 | * might redirect output elsewhere. */ | |
1325 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1326 | ||
1327 | } else if (getpid() == 1) { | |
a866073d | 1328 | /* Running inside a container, as PID 1 */ |
67445f4e | 1329 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d | 1330 | log_set_target(LOG_TARGET_CONSOLE); |
99f09825 | 1331 | log_close_console(); /* force reopen of /dev/console */ |
a866073d LP |
1332 | log_open(); |
1333 | ||
1334 | /* For the later on, see above... */ | |
1335 | log_set_target(LOG_TARGET_JOURNAL); | |
1336 | ||
c3a170f3 HH |
1337 | /* clear the kernel timestamp, |
1338 | * because we are in a container */ | |
1339 | kernel_timestamp.monotonic = 0ULL; | |
1340 | kernel_timestamp.realtime = 0ULL; | |
a866073d | 1341 | |
c3a170f3 | 1342 | } else { |
a866073d | 1343 | /* Running as user instance */ |
67445f4e | 1344 | arg_running_as = SYSTEMD_USER; |
eeecf6e6 | 1345 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1346 | log_open(); |
c3a170f3 HH |
1347 | |
1348 | /* clear the kernel timestamp, | |
1349 | * because we are not PID 1 */ | |
1350 | kernel_timestamp.monotonic = 0ULL; | |
1351 | kernel_timestamp.realtime = 0ULL; | |
bbe63281 | 1352 | } |
a5dab5ce | 1353 | |
0c85a4f3 | 1354 | /* Initialize default unit */ |
6afa301b LP |
1355 | r = set_default_unit(SPECIAL_DEFAULT_TARGET); |
1356 | if (r < 0) { | |
14212119 | 1357 | log_error("Failed to set default unit %s: %s", SPECIAL_DEFAULT_TARGET, strerror(-r)); |
f170852a | 1358 | goto finish; |
14212119 | 1359 | } |
60918275 | 1360 | |
a07fdfa3 LP |
1361 | r = initialize_join_controllers(); |
1362 | if (r < 0) | |
0c85a4f3 LP |
1363 | goto finish; |
1364 | ||
f170852a LP |
1365 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1366 | * /proc/$PID/fd is available. */ | |
c1dae1b3 | 1367 | if (getpid() == 1) { |
0c85a4f3 LP |
1368 | r = mount_setup(loaded_policy); |
1369 | if (r < 0) | |
8efe3c01 | 1370 | goto finish; |
0c85a4f3 | 1371 | } |
4ade7963 LP |
1372 | |
1373 | /* Reset all signal handlers. */ | |
1374 | assert_se(reset_all_signal_handlers() == 0); | |
1375 | ||
9a34ec5f | 1376 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1377 | |
487393e9 LP |
1378 | if (parse_config_file() < 0) |
1379 | goto finish; | |
1380 | ||
67445f4e | 1381 | if (arg_running_as == SYSTEMD_SYSTEM) |
141a79f4 | 1382 | if (parse_proc_cmdline(parse_proc_cmdline_word) < 0) |
a5dab5ce | 1383 | goto finish; |
f170852a LP |
1384 | |
1385 | log_parse_environment(); | |
1386 | ||
1387 | if (parse_argv(argc, argv) < 0) | |
1388 | goto finish; | |
1389 | ||
6bae23a0 TB |
1390 | if (arg_action == ACTION_TEST && |
1391 | geteuid() == 0) { | |
b5c6cf87 LP |
1392 | log_error("Don't run test mode as root."); |
1393 | goto finish; | |
1394 | } | |
1395 | ||
6bae23a0 TB |
1396 | if (arg_running_as == SYSTEMD_USER && |
1397 | arg_action == ACTION_RUN && | |
1398 | sd_booted() <= 0) { | |
1399 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1400 | goto finish; | |
1401 | } | |
1402 | ||
67445f4e | 1403 | if (arg_running_as == SYSTEMD_SYSTEM && |
fe783b03 LP |
1404 | arg_action == ACTION_RUN && |
1405 | running_in_chroot() > 0) { | |
1406 | log_error("Cannot be run in a chroot() environment."); | |
1407 | goto finish; | |
1408 | } | |
1409 | ||
fa0f4d8a | 1410 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1411 | retval = help(); |
1412 | goto finish; | |
9ba0bc4e ZJS |
1413 | } else if (arg_action == ACTION_VERSION) { |
1414 | retval = version(); | |
1415 | goto finish; | |
fa0f4d8a | 1416 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1417 | unit_dump_config_items(stdout); |
22f4096c | 1418 | retval = EXIT_SUCCESS; |
e537352b | 1419 | goto finish; |
fa0f4d8a | 1420 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1421 | retval = EXIT_SUCCESS; |
4288f619 | 1422 | goto finish; |
f170852a LP |
1423 | } |
1424 | ||
8be28fb1 KS |
1425 | if (arg_running_as == SYSTEMD_USER && |
1426 | !getenv("XDG_RUNTIME_DIR")) { | |
1427 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1428 | goto finish; | |
1429 | } | |
1430 | ||
fa0f4d8a | 1431 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1432 | |
871e5809 LP |
1433 | /* Close logging fds, in order not to confuse fdset below */ |
1434 | log_close(); | |
1435 | ||
a16e1123 | 1436 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1437 | r = fdset_new_fill(&fds); |
1438 | if (r < 0) { | |
1439 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1440 | goto finish; | |
1441 | } else | |
1442 | fdset_cloexec(fds, true); | |
a16e1123 | 1443 | |
d3b1c508 LP |
1444 | if (arg_serialization) |
1445 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
a16e1123 | 1446 | |
90dc8c2e | 1447 | if (arg_running_as == SYSTEMD_SYSTEM) |
80876c20 LP |
1448 | /* Become a session leader if we aren't one yet. */ |
1449 | setsid(); | |
4ade7963 | 1450 | |
befb5b6a LP |
1451 | /* Move out of the way, so that we won't block unmounts */ |
1452 | assert_se(chdir("/") == 0); | |
1453 | ||
2146621b LP |
1454 | /* Reset the console, but only if this is really init and we |
1455 | * are freshly booted */ | |
67445f4e | 1456 | if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) |
2660882b | 1457 | console_setup(getpid() == 1 && !skip_setup); |
4ade7963 | 1458 | |
18149b9f | 1459 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1460 | log_open(); |
4ade7963 | 1461 | |
5373d602 LP |
1462 | /* Make sure we leave a core dump without panicing the |
1463 | * kernel. */ | |
ab422445 | 1464 | if (getpid() == 1) { |
4fc935ca | 1465 | install_crash_handler(); |
97c4f35c | 1466 | |
0c85a4f3 LP |
1467 | r = mount_cgroup_controllers(arg_join_controllers); |
1468 | if (r < 0) | |
1469 | goto finish; | |
1470 | } | |
1471 | ||
67445f4e | 1472 | if (arg_running_as == SYSTEMD_SYSTEM) { |
c20f5ac7 LP |
1473 | const char *virtualization = NULL; |
1474 | ||
bc270841 | 1475 | log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES ")"); |
c20f5ac7 LP |
1476 | |
1477 | detect_virtualization(&virtualization); | |
1478 | if (virtualization) | |
1479 | log_info("Detected virtualization '%s'.", virtualization); | |
1480 | ||
26a1efdf LP |
1481 | if (in_initrd()) |
1482 | log_info("Running in initial RAM disk."); | |
1483 | ||
d8160f21 ZJS |
1484 | } else { |
1485 | _cleanup_free_ char *t = uid_to_name(getuid()); | |
1486 | log_debug(PACKAGE_STRING " running in user mode for user "PID_FMT"/%s. (" SYSTEMD_FEATURES ")", | |
1487 | getuid(), t); | |
1488 | } | |
a5dab5ce | 1489 | |
67445f4e | 1490 | if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { |
d450b6f2 | 1491 | if (arg_show_status > 0 || plymouth_running()) |
888c6216 LP |
1492 | status_welcome(); |
1493 | ||
e3043162 | 1494 | #ifdef HAVE_KMOD |
b43b8f7a KS |
1495 | if (detect_container(NULL) <= 0) |
1496 | kmod_setup(); | |
e3043162 | 1497 | #endif |
888c6216 | 1498 | hostname_setup(); |
d7ccca2e | 1499 | machine_id_setup(); |
888c6216 | 1500 | loopback_setup(); |
490aed58 | 1501 | |
6ee5bbf8 | 1502 | test_mtab(); |
80758717 | 1503 | test_usr(); |
871c44a7 | 1504 | test_cgroups(); |
af5bc85d | 1505 | } |
302e8c4c | 1506 | |
67445f4e | 1507 | if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) |
e96d6be7 LP |
1508 | watchdog_set_timeout(&arg_runtime_watchdog); |
1509 | ||
aa0f64ac LP |
1510 | if (arg_timer_slack_nsec != (nsec_t) -1) |
1511 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) | |
1512 | log_error("Failed to adjust timer slack: %m"); | |
1513 | ||
ec8927ca | 1514 | if (arg_capability_bounding_set_drop) { |
31c885e9 | 1515 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
ec8927ca | 1516 | if (r < 0) { |
31c885e9 | 1517 | log_error("Failed to drop capability bounding set of usermode helpers: %s", strerror(-r)); |
ec8927ca LP |
1518 | goto finish; |
1519 | } | |
31c885e9 | 1520 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); |
939b8f14 | 1521 | if (r < 0) { |
31c885e9 | 1522 | log_error("Failed to drop capability bounding set: %s", strerror(-r)); |
939b8f14 LP |
1523 | goto finish; |
1524 | } | |
ec8927ca LP |
1525 | } |
1526 | ||
d3b1c508 LP |
1527 | if (arg_syscall_archs) { |
1528 | r = enforce_syscall_archs(arg_syscall_archs); | |
1529 | if (r < 0) | |
1530 | goto finish; | |
1531 | } | |
1532 | ||
67445f4e | 1533 | if (arg_running_as == SYSTEMD_USER) { |
d4447f4d | 1534 | /* Become reaper of our children */ |
8b8ffe68 LP |
1535 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { |
1536 | log_warning("Failed to make us a subreaper: %m"); | |
1537 | if (errno == EINVAL) | |
ddfa5101 | 1538 | log_info("Perhaps the kernel version is too old (< 3.4?)"); |
8b8ffe68 | 1539 | } |
d4447f4d AK |
1540 | } |
1541 | ||
67445f4e | 1542 | if (arg_running_as == SYSTEMD_SYSTEM) |
4096d6f5 LP |
1543 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1544 | ||
e3dd987c | 1545 | r = manager_new(arg_running_as, &m); |
e96d6be7 | 1546 | if (r < 0) { |
8e274523 | 1547 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1548 | goto finish; |
1549 | } | |
1550 | ||
9e58ff9c | 1551 | m->confirm_spawn = arg_confirm_spawn; |
0a494f1f LP |
1552 | m->default_std_output = arg_default_std_output; |
1553 | m->default_std_error = arg_default_std_error; | |
1f19a534 OS |
1554 | m->default_restart_usec = arg_default_restart_usec; |
1555 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
1556 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
3f41e1e5 LN |
1557 | m->default_start_limit_interval = arg_default_start_limit_interval; |
1558 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
e96d6be7 LP |
1559 | m->runtime_watchdog = arg_runtime_watchdog; |
1560 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
c3a170f3 HH |
1561 | m->userspace_timestamp = userspace_timestamp; |
1562 | m->kernel_timestamp = kernel_timestamp; | |
c3a170f3 | 1563 | m->initrd_timestamp = initrd_timestamp; |
c2e0d600 TA |
1564 | m->security_start_timestamp = security_start_timestamp; |
1565 | m->security_finish_timestamp = security_finish_timestamp; | |
9e58ff9c | 1566 | |
c93ff2e9 FC |
1567 | manager_set_default_rlimits(m, arg_default_rlimit); |
1568 | ||
97d0e5f8 | 1569 | if (arg_default_environment) |
718db961 | 1570 | manager_environment_add(m, NULL, arg_default_environment); |
97d0e5f8 | 1571 | |
d450b6f2 ZJS |
1572 | if (arg_show_status == SHOW_STATUS_UNSET) |
1573 | arg_show_status = SHOW_STATUS_YES; | |
27d340c7 LP |
1574 | manager_set_show_status(m, arg_show_status); |
1575 | ||
bf4df7c3 | 1576 | /* Remember whether we should queue the default job */ |
d3b1c508 | 1577 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 1578 | |
9d76d730 LP |
1579 | before_startup = now(CLOCK_MONOTONIC); |
1580 | ||
d3b1c508 | 1581 | r = manager_startup(m, arg_serialization, fds); |
e96d6be7 | 1582 | if (r < 0) |
6e2ef85b | 1583 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 | 1584 | |
bf4df7c3 LP |
1585 | /* This will close all file descriptors that were opened, but |
1586 | * not claimed by any unit. */ | |
01e10de3 | 1587 | fdset_free(fds); |
6c081276 | 1588 | fds = NULL; |
f50e0a01 | 1589 | |
d3b1c508 LP |
1590 | if (arg_serialization) { |
1591 | fclose(arg_serialization); | |
1592 | arg_serialization = NULL; | |
bf4df7c3 LP |
1593 | } |
1594 | ||
1595 | if (queue_default_job) { | |
718db961 | 1596 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1c27d3f3 | 1597 | Unit *target = NULL; |
bacbccb7 | 1598 | Job *default_unit_job; |
398ef8ba | 1599 | |
fa0f4d8a | 1600 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1601 | |
e96d6be7 | 1602 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
718db961 LP |
1603 | if (r < 0) |
1604 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1605 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
ac155bb8 MS |
1606 | log_error("Failed to load default target: %s", strerror(-target->load_error)); |
1607 | else if (target->load_state == UNIT_MASKED) | |
6daf4f90 | 1608 | log_error("Default target masked."); |
27b14a22 | 1609 | |
ac155bb8 | 1610 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1611 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1612 | |
e96d6be7 LP |
1613 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1614 | if (r < 0) { | |
718db961 | 1615 | log_error("Failed to load rescue target: %s", bus_error_message(&error, r)); |
a16e1123 | 1616 | goto finish; |
11ddb6f4 | 1617 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
ac155bb8 | 1618 | log_error("Failed to load rescue target: %s", strerror(-target->load_error)); |
1c27d3f3 | 1619 | goto finish; |
ac155bb8 | 1620 | } else if (target->load_state == UNIT_MASKED) { |
6daf4f90 | 1621 | log_error("Rescue target masked."); |
00dc5d76 | 1622 | goto finish; |
a16e1123 LP |
1623 | } |
1624 | } | |
37d88da7 | 1625 | |
ac155bb8 | 1626 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1627 | |
fa0f4d8a | 1628 | if (arg_action == ACTION_TEST) { |
40d50879 | 1629 | printf("-> By units:\n"); |
a16e1123 LP |
1630 | manager_dump_units(m, stdout, "\t"); |
1631 | } | |
1632 | ||
95f1b47d | 1633 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); |
ab17a050 | 1634 | if (r == -EPERM) { |
718db961 | 1635 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
ab17a050 LP |
1636 | |
1637 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); | |
1638 | if (r < 0) { | |
718db961 | 1639 | log_error("Failed to start default target: %s", bus_error_message(&error, r)); |
ab17a050 LP |
1640 | goto finish; |
1641 | } | |
1642 | } else if (r < 0) { | |
718db961 | 1643 | log_error("Failed to isolate default target: %s", bus_error_message(&error, r)); |
37d88da7 LP |
1644 | goto finish; |
1645 | } | |
ab17a050 | 1646 | |
bacbccb7 | 1647 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1648 | |
07672f49 LP |
1649 | after_startup = now(CLOCK_MONOTONIC); |
1650 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1651 | "Loaded units and determined initial transaction in %s.", | |
2fa4092c | 1652 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 0)); |
07672f49 | 1653 | |
fa0f4d8a | 1654 | if (arg_action == ACTION_TEST) { |
40d50879 | 1655 | printf("-> By jobs:\n"); |
a16e1123 | 1656 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1657 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1658 | goto finish; |
1659 | } | |
e965d56d | 1660 | } |
d46de8a1 | 1661 | |
a16e1123 | 1662 | for (;;) { |
e96d6be7 LP |
1663 | r = manager_loop(m); |
1664 | if (r < 0) { | |
a16e1123 LP |
1665 | log_error("Failed to run mainloop: %s", strerror(-r)); |
1666 | goto finish; | |
1667 | } | |
11dd41ce | 1668 | |
a16e1123 | 1669 | switch (m->exit_code) { |
e965d56d | 1670 | |
a16e1123 | 1671 | case MANAGER_EXIT: |
22f4096c | 1672 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1673 | log_debug("Exit."); |
1674 | goto finish; | |
e965d56d | 1675 | |
a16e1123 | 1676 | case MANAGER_RELOAD: |
e015090f | 1677 | log_info("Reloading."); |
e96d6be7 LP |
1678 | r = manager_reload(m); |
1679 | if (r < 0) | |
a16e1123 LP |
1680 | log_error("Failed to reload: %s", strerror(-r)); |
1681 | break; | |
cea8e32e | 1682 | |
a16e1123 | 1683 | case MANAGER_REEXECUTE: |
664f88a7 | 1684 | |
d3b1c508 | 1685 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) |
a16e1123 | 1686 | goto finish; |
60918275 | 1687 | |
a16e1123 | 1688 | reexecute = true; |
e015090f | 1689 | log_notice("Reexecuting."); |
a16e1123 LP |
1690 | goto finish; |
1691 | ||
664f88a7 LP |
1692 | case MANAGER_SWITCH_ROOT: |
1693 | /* Steal the switch root parameters */ | |
41669317 | 1694 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1695 | switch_root_init = m->switch_root_init; |
1696 | m->switch_root = m->switch_root_init = NULL; | |
1697 | ||
1698 | if (!switch_root_init) | |
d3b1c508 | 1699 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) |
664f88a7 LP |
1700 | goto finish; |
1701 | ||
1702 | reexecute = true; | |
1703 | log_notice("Switching root."); | |
1704 | goto finish; | |
1705 | ||
b9080b03 FF |
1706 | case MANAGER_REBOOT: |
1707 | case MANAGER_POWEROFF: | |
1708 | case MANAGER_HALT: | |
1709 | case MANAGER_KEXEC: { | |
1710 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1711 | [MANAGER_REBOOT] = "reboot", | |
1712 | [MANAGER_POWEROFF] = "poweroff", | |
1713 | [MANAGER_HALT] = "halt", | |
1714 | [MANAGER_KEXEC] = "kexec" | |
1715 | }; | |
1716 | ||
1717 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1718 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1719 | |
1720 | log_notice("Shutting down."); | |
1721 | goto finish; | |
1722 | } | |
1723 | ||
a16e1123 LP |
1724 | default: |
1725 | assert_not_reached("Unknown exit code."); | |
1726 | } | |
1727 | } | |
f170852a | 1728 | |
60918275 | 1729 | finish: |
d3b1c508 | 1730 | if (m) { |
60918275 | 1731 | manager_free(m); |
d3b1c508 LP |
1732 | m = NULL; |
1733 | } | |
60918275 | 1734 | |
d3b1c508 | 1735 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) { |
4096d6f5 | 1736 | free(arg_default_rlimit[j]); |
d3b1c508 LP |
1737 | arg_default_rlimit[j] = NULL; |
1738 | } | |
c93ff2e9 | 1739 | |
fa0f4d8a | 1740 | free(arg_default_unit); |
d3b1c508 LP |
1741 | arg_default_unit = NULL; |
1742 | ||
0c85a4f3 | 1743 | free_join_controllers(); |
b9cd2ec1 | 1744 | |
d3b1c508 LP |
1745 | strv_free(arg_default_environment); |
1746 | arg_default_environment = NULL; | |
1747 | ||
1748 | set_free(arg_syscall_archs); | |
1749 | arg_syscall_archs = NULL; | |
1750 | ||
b2bb3dbe LP |
1751 | label_finish(); |
1752 | ||
a16e1123 | 1753 | if (reexecute) { |
664f88a7 | 1754 | const char **args; |
e564a982 | 1755 | unsigned i, args_size; |
a16e1123 | 1756 | |
664f88a7 LP |
1757 | /* Close and disarm the watchdog, so that the new |
1758 | * instance can reinitialize it, but doesn't get | |
1759 | * rebooted while we do that */ | |
1760 | watchdog_close(true); | |
a16e1123 | 1761 | |
4096d6f5 LP |
1762 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1763 | * that the new systemd can pass the kernel default to | |
1764 | * its child processes */ | |
1765 | if (saved_rlimit_nofile.rlim_cur > 0) | |
1766 | setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); | |
1767 | ||
41669317 | 1768 | if (switch_root_dir) { |
cee530bb LP |
1769 | /* Kill all remaining processes from the |
1770 | * initrd, but don't wait for them, so that we | |
1771 | * can handle the SIGCHLD for them after | |
1772 | * deserializing. */ | |
0bee65f0 | 1773 | broadcast_signal(SIGTERM, false, true); |
bd3fa1d2 LP |
1774 | |
1775 | /* And switch root */ | |
41669317 LP |
1776 | r = switch_root(switch_root_dir); |
1777 | if (r < 0) | |
1778 | log_error("Failed to switch root, ignoring: %s", strerror(-r)); | |
1779 | } | |
a16e1123 | 1780 | |
d03bc1b8 | 1781 | args_size = MAX(6, argc+1); |
e564a982 | 1782 | args = newa(const char*, args_size); |
a16e1123 | 1783 | |
664f88a7 LP |
1784 | if (!switch_root_init) { |
1785 | char sfd[16]; | |
a16e1123 | 1786 | |
664f88a7 LP |
1787 | /* First try to spawn ourselves with the right |
1788 | * path, and with full serialization. We do | |
1789 | * this only if the user didn't specify an | |
1790 | * explicit init to spawn. */ | |
edb9aaa8 | 1791 | |
d3b1c508 | 1792 | assert(arg_serialization); |
664f88a7 | 1793 | assert(fds); |
edb9aaa8 | 1794 | |
d3b1c508 | 1795 | snprintf(sfd, sizeof(sfd), "%i", fileno(arg_serialization)); |
664f88a7 | 1796 | char_array_0(sfd); |
edb9aaa8 | 1797 | |
664f88a7 LP |
1798 | i = 0; |
1799 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1800 | if (switch_root_dir) |
2660882b | 1801 | args[i++] = "--switched-root"; |
67445f4e | 1802 | args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user"; |
664f88a7 LP |
1803 | args[i++] = "--deserialize"; |
1804 | args[i++] = sfd; | |
1805 | args[i++] = NULL; | |
edb9aaa8 | 1806 | |
ce8aba56 KS |
1807 | /* do not pass along the environment we inherit from the kernel or initrd */ |
1808 | if (switch_root_dir) | |
1809 | clearenv(); | |
1810 | ||
e564a982 | 1811 | assert(i <= args_size); |
664f88a7 LP |
1812 | execv(args[0], (char* const*) args); |
1813 | } | |
6e98720f | 1814 | |
664f88a7 LP |
1815 | /* Try the fallback, if there is any, without any |
1816 | * serialization. We pass the original argv[] and | |
1817 | * envp[]. (Well, modulo the ordering changes due to | |
1818 | * getopt() in argv[], and some cleanups in envp[], | |
1819 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1820 | |
d3b1c508 LP |
1821 | if (arg_serialization) { |
1822 | fclose(arg_serialization); | |
1823 | arg_serialization = NULL; | |
b8f83232 | 1824 | } |
a16e1123 | 1825 | |
b8f83232 | 1826 | if (fds) { |
664f88a7 | 1827 | fdset_free(fds); |
b8f83232 LP |
1828 | fds = NULL; |
1829 | } | |
a16e1123 | 1830 | |
a504223d HH |
1831 | /* Reopen the console */ |
1832 | make_console_stdio(); | |
1833 | ||
d3b1c508 | 1834 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
664f88a7 | 1835 | args[i++] = argv[j]; |
a16e1123 | 1836 | args[i++] = NULL; |
e564a982 | 1837 | assert(i <= args_size); |
b8f83232 LP |
1838 | |
1839 | if (switch_root_init) { | |
1840 | args[0] = switch_root_init; | |
1841 | execv(args[0], (char* const*) args); | |
1842 | log_warning("Failed to execute configured init, trying fallback: %m"); | |
1843 | } | |
1844 | ||
1845 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1846 | execv(args[0], (char* const*) args); |
1847 | ||
745e2fb7 KS |
1848 | if (errno == ENOENT) { |
1849 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 1850 | |
745e2fb7 KS |
1851 | args[0] = "/bin/sh"; |
1852 | args[1] = NULL; | |
1853 | execv(args[0], (char* const*) args); | |
1854 | log_error("Failed to execute /bin/sh, giving up: %m"); | |
1855 | } else | |
1856 | log_warning("Failed to execute /sbin/init, giving up: %m"); | |
a16e1123 LP |
1857 | } |
1858 | ||
d3b1c508 LP |
1859 | if (arg_serialization) { |
1860 | fclose(arg_serialization); | |
1861 | arg_serialization = NULL; | |
1862 | } | |
a16e1123 | 1863 | |
d3b1c508 | 1864 | if (fds) { |
a16e1123 | 1865 | fdset_free(fds); |
d3b1c508 LP |
1866 | fds = NULL; |
1867 | } | |
a16e1123 | 1868 | |
54b434b1 LP |
1869 | #ifdef HAVE_VALGRIND_VALGRIND_H |
1870 | /* If we are PID 1 and running under valgrind, then let's exit | |
1871 | * here explicitly. valgrind will only generate nice output on | |
1872 | * exit(), not on exec(), hence let's do the former not the | |
1873 | * latter here. */ | |
1874 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
1875 | return 0; | |
1876 | #endif | |
1877 | ||
b9080b03 FF |
1878 | if (shutdown_verb) { |
1879 | const char * command_line[] = { | |
1880 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1881 | shutdown_verb, | |
1882 | NULL | |
1883 | }; | |
e3e45d4f SP |
1884 | _cleanup_strv_free_ char **env_block = NULL; |
1885 | env_block = strv_copy(environ); | |
b9080b03 | 1886 | |
e96d6be7 | 1887 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
e3e45d4f | 1888 | char *e; |
d18f337c | 1889 | |
e96d6be7 LP |
1890 | /* If we reboot let's set the shutdown |
1891 | * watchdog and tell the shutdown binary to | |
1892 | * repeatedly ping it */ | |
1893 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
1894 | watchdog_close(false); | |
1895 | ||
e3e45d4f SP |
1896 | /* Tell the binary how often to ping, ignore failure */ |
1897 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
1898 | strv_push(&env_block, e); | |
1899 | } else | |
e96d6be7 LP |
1900 | watchdog_close(true); |
1901 | ||
66713f77 LP |
1902 | /* Avoid the creation of new processes forked by the |
1903 | * kernel; at this point, we will not listen to the | |
1904 | * signals anyway */ | |
1905 | if (detect_container(NULL) <= 0) | |
1906 | cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); | |
ad929bcc | 1907 | |
d18f337c | 1908 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
b9080b03 FF |
1909 | log_error("Failed to execute shutdown binary, freezing: %m"); |
1910 | } | |
1911 | ||
c3b3c274 LP |
1912 | if (getpid() == 1) |
1913 | freeze(); | |
1914 | ||
60918275 LP |
1915 | return retval; |
1916 | } |