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663996b3 MS |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
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 | |
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 | |
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 | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
663996b3 | 22 | #include <errno.h> |
6300502b | 23 | #include <fcntl.h> |
663996b3 MS |
24 | #include <getopt.h> |
25 | #include <signal.h> | |
6300502b MP |
26 | #include <stdio.h> |
27 | #include <string.h> | |
663996b3 | 28 | #include <sys/mount.h> |
6300502b MP |
29 | #include <sys/prctl.h> |
30 | #include <sys/reboot.h> | |
31 | #include <sys/stat.h> | |
32 | #include <unistd.h> | |
60f067b4 JS |
33 | #ifdef HAVE_SECCOMP |
34 | #include <seccomp.h> | |
35 | #endif | |
6300502b MP |
36 | #ifdef HAVE_VALGRIND_VALGRIND_H |
37 | #include <valgrind/valgrind.h> | |
38 | #endif | |
60f067b4 JS |
39 | |
40 | #include "sd-daemon.h" | |
60f067b4 | 41 | #include "sd-bus.h" |
6300502b | 42 | |
60f067b4 | 43 | #include "architecture.h" |
6300502b MP |
44 | #include "build.h" |
45 | #include "bus-error.h" | |
46 | #include "bus-util.h" | |
663996b3 | 47 | #include "capability.h" |
60f067b4 | 48 | #include "clock-util.h" |
6300502b MP |
49 | #include "conf-parser.h" |
50 | #include "cpu-set-util.h" | |
51 | #include "dbus-manager.h" | |
52 | #include "def.h" | |
53 | #include "env-util.h" | |
54 | #include "fdset.h" | |
60f067b4 | 55 | #include "fileio.h" |
86f210e9 | 56 | #include "formats-util.h" |
6300502b MP |
57 | #include "hostname-setup.h" |
58 | #include "ima-setup.h" | |
59 | #include "killall.h" | |
60 | #include "kmod-setup.h" | |
e735f4d4 | 61 | #include "load-fragment.h" |
6300502b | 62 | #include "log.h" |
663996b3 | 63 | #include "loopback-setup.h" |
663996b3 | 64 | #include "machine-id-setup.h" |
6300502b MP |
65 | #include "manager.h" |
66 | #include "missing.h" | |
67 | #include "mount-setup.h" | |
68 | #include "pager.h" | |
69 | #include "process-util.h" | |
663996b3 | 70 | #include "selinux-setup.h" |
6300502b MP |
71 | #include "selinux-util.h" |
72 | #include "signal-util.h" | |
663996b3 | 73 | #include "smack-setup.h" |
6300502b MP |
74 | #include "special.h" |
75 | #include "strv.h" | |
76 | #include "switch-root.h" | |
77 | #include "terminal-util.h" | |
78 | #include "virt.h" | |
79 | #include "watchdog.h" | |
663996b3 MS |
80 | |
81 | static enum { | |
82 | ACTION_RUN, | |
83 | ACTION_HELP, | |
84 | ACTION_VERSION, | |
85 | ACTION_TEST, | |
86 | ACTION_DUMP_CONFIGURATION_ITEMS, | |
87 | ACTION_DONE | |
88 | } arg_action = ACTION_RUN; | |
663996b3 | 89 | static char *arg_default_unit = NULL; |
e3bff60a | 90 | static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; |
663996b3 | 91 | static bool arg_dump_core = true; |
663996b3 | 92 | static int arg_crash_chvt = -1; |
6300502b MP |
93 | static bool arg_crash_shell = false; |
94 | static bool arg_crash_reboot = false; | |
663996b3 | 95 | static bool arg_confirm_spawn = false; |
60f067b4 | 96 | static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; |
663996b3 | 97 | static bool arg_switched_root = false; |
5eef597e | 98 | static int arg_no_pager = -1; |
663996b3 MS |
99 | static char ***arg_join_controllers = NULL; |
100 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; | |
101 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; | |
60f067b4 JS |
102 | static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; |
103 | static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; | |
104 | static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
105 | static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; | |
106 | static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; | |
663996b3 MS |
107 | static usec_t arg_runtime_watchdog = 0; |
108 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
14228c0d | 109 | static char **arg_default_environment = NULL; |
60f067b4 | 110 | static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; |
663996b3 | 111 | static uint64_t arg_capability_bounding_set_drop = 0; |
5eef597e | 112 | static nsec_t arg_timer_slack_nsec = NSEC_INFINITY; |
60f067b4 JS |
113 | static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; |
114 | static Set* arg_syscall_archs = NULL; | |
115 | static FILE* arg_serialization = NULL; | |
116 | static bool arg_default_cpu_accounting = false; | |
117 | static bool arg_default_blockio_accounting = false; | |
118 | static bool arg_default_memory_accounting = false; | |
6300502b | 119 | static bool arg_default_tasks_accounting = false; |
663996b3 | 120 | |
5eef597e MP |
121 | static void pager_open_if_enabled(void) { |
122 | ||
123 | if (arg_no_pager <= 0) | |
124 | return; | |
125 | ||
126 | pager_open(false); | |
127 | } | |
128 | ||
6300502b MP |
129 | noreturn static void freeze_or_reboot(void) { |
130 | ||
131 | if (arg_crash_reboot) { | |
132 | log_notice("Rebooting in 10s..."); | |
133 | (void) sleep(10); | |
134 | ||
135 | log_notice("Rebooting now..."); | |
136 | (void) reboot(RB_AUTOBOOT); | |
137 | log_emergency_errno(errno, "Failed to reboot: %m"); | |
138 | } | |
139 | ||
140 | log_emergency("Freezing execution."); | |
141 | freeze(); | |
142 | } | |
143 | ||
60f067b4 | 144 | noreturn static void crash(int sig) { |
6300502b MP |
145 | struct sigaction sa; |
146 | pid_t pid; | |
663996b3 | 147 | |
14228c0d MB |
148 | if (getpid() != 1) |
149 | /* Pass this on immediately, if this is not PID 1 */ | |
6300502b | 150 | (void) raise(sig); |
14228c0d | 151 | else if (!arg_dump_core) |
f47781d8 | 152 | log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig)); |
663996b3 | 153 | else { |
6300502b MP |
154 | sa = (struct sigaction) { |
155 | .sa_handler = nop_signal_handler, | |
663996b3 MS |
156 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, |
157 | }; | |
663996b3 MS |
158 | |
159 | /* We want to wait for the core process, hence let's enable SIGCHLD */ | |
6300502b | 160 | (void) sigaction(SIGCHLD, &sa, NULL); |
663996b3 | 161 | |
e735f4d4 | 162 | pid = raw_clone(SIGCHLD, NULL); |
663996b3 | 163 | if (pid < 0) |
f47781d8 | 164 | log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
663996b3 | 165 | else if (pid == 0) { |
6300502b MP |
166 | struct rlimit rl = { |
167 | .rlim_cur = RLIM_INFINITY, | |
168 | .rlim_max = RLIM_INFINITY, | |
169 | }; | |
663996b3 MS |
170 | |
171 | /* Enable default signal handler for core dump */ | |
6300502b MP |
172 | sa = (struct sigaction) { |
173 | .sa_handler = SIG_DFL, | |
174 | }; | |
175 | (void) sigaction(sig, &sa, NULL); | |
663996b3 MS |
176 | |
177 | /* Don't limit the core dump size */ | |
6300502b | 178 | (void) setrlimit(RLIMIT_CORE, &rl); |
663996b3 MS |
179 | |
180 | /* Just to be sure... */ | |
e3bff60a | 181 | (void) chdir("/"); |
663996b3 MS |
182 | |
183 | /* Raise the signal again */ | |
e735f4d4 | 184 | pid = raw_getpid(); |
6300502b | 185 | (void) kill(pid, sig); /* raise() would kill the parent */ |
663996b3 MS |
186 | |
187 | assert_not_reached("We shouldn't be here..."); | |
6300502b | 188 | _exit(EXIT_FAILURE); |
663996b3 MS |
189 | } else { |
190 | siginfo_t status; | |
191 | int r; | |
192 | ||
193 | /* Order things nicely. */ | |
194 | r = wait_for_terminate(pid, &status); | |
195 | if (r < 0) | |
f47781d8 | 196 | log_emergency_errno(r, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig)); |
663996b3 | 197 | else if (status.si_code != CLD_DUMPED) |
e735f4d4 MP |
198 | log_emergency("Caught <%s>, core dump failed (child "PID_FMT", code=%s, status=%i/%s).", |
199 | signal_to_string(sig), | |
200 | pid, sigchld_code_to_string(status.si_code), | |
201 | status.si_status, | |
202 | strna(status.si_code == CLD_EXITED | |
203 | ? exit_status_to_string(status.si_status, EXIT_STATUS_FULL) | |
204 | : signal_to_string(status.si_status))); | |
663996b3 | 205 | else |
f47781d8 | 206 | log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
663996b3 MS |
207 | } |
208 | } | |
209 | ||
6300502b MP |
210 | if (arg_crash_chvt >= 0) |
211 | (void) chvt(arg_crash_chvt); | |
663996b3 | 212 | |
6300502b MP |
213 | sa = (struct sigaction) { |
214 | .sa_handler = SIG_IGN, | |
215 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
216 | }; | |
663996b3 | 217 | |
6300502b MP |
218 | /* Let the kernel reap children for us */ |
219 | (void) sigaction(SIGCHLD, &sa, NULL); | |
663996b3 | 220 | |
6300502b MP |
221 | if (arg_crash_shell) { |
222 | log_notice("Executing crash shell in 10s..."); | |
223 | (void) sleep(10); | |
663996b3 | 224 | |
e735f4d4 | 225 | pid = raw_clone(SIGCHLD, NULL); |
663996b3 | 226 | if (pid < 0) |
f47781d8 | 227 | log_emergency_errno(errno, "Failed to fork off crash shell: %m"); |
663996b3 | 228 | else if (pid == 0) { |
6300502b MP |
229 | (void) setsid(); |
230 | (void) make_console_stdio(); | |
231 | (void) execle("/bin/sh", "/bin/sh", NULL, environ); | |
663996b3 | 232 | |
e735f4d4 | 233 | log_emergency_errno(errno, "execle() failed: %m"); |
6300502b MP |
234 | _exit(EXIT_FAILURE); |
235 | } else { | |
236 | log_info("Spawned crash shell as PID "PID_FMT".", pid); | |
237 | (void) wait_for_terminate(pid, NULL); | |
238 | } | |
663996b3 MS |
239 | } |
240 | ||
6300502b | 241 | freeze_or_reboot(); |
663996b3 MS |
242 | } |
243 | ||
244 | static void install_crash_handler(void) { | |
e735f4d4 | 245 | static const struct sigaction sa = { |
663996b3 | 246 | .sa_handler = crash, |
e735f4d4 | 247 | .sa_flags = SA_NODEFER, /* So that we can raise the signal again from the signal handler */ |
663996b3 | 248 | }; |
e735f4d4 | 249 | int r; |
663996b3 | 250 | |
e735f4d4 MP |
251 | /* We ignore the return value here, since, we don't mind if we |
252 | * cannot set up a crash handler */ | |
253 | r = sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); | |
254 | if (r < 0) | |
255 | log_debug_errno(r, "I had trouble setting up the crash handler, ignoring: %m"); | |
663996b3 MS |
256 | } |
257 | ||
5eef597e MP |
258 | static int console_setup(void) { |
259 | _cleanup_close_ int tty_fd = -1; | |
260 | int r; | |
663996b3 MS |
261 | |
262 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); | |
f47781d8 MP |
263 | if (tty_fd < 0) |
264 | return log_error_errno(tty_fd, "Failed to open /dev/console: %m"); | |
663996b3 | 265 | |
5eef597e MP |
266 | /* We don't want to force text mode. plymouth may be showing |
267 | * pictures already from initrd. */ | |
663996b3 | 268 | r = reset_terminal_fd(tty_fd, false); |
f47781d8 MP |
269 | if (r < 0) |
270 | return log_error_errno(r, "Failed to reset /dev/console: %m"); | |
663996b3 | 271 | |
5eef597e | 272 | return 0; |
663996b3 MS |
273 | } |
274 | ||
6300502b MP |
275 | static int parse_crash_chvt(const char *value) { |
276 | int b; | |
663996b3 | 277 | |
6300502b MP |
278 | if (safe_atoi(value, &arg_crash_chvt) >= 0) |
279 | return 0; | |
663996b3 | 280 | |
6300502b MP |
281 | b = parse_boolean(value); |
282 | if (b < 0) | |
283 | return b; | |
663996b3 | 284 | |
6300502b MP |
285 | if (b > 0) |
286 | arg_crash_chvt = 0; /* switch to where kmsg goes */ | |
287 | else | |
288 | arg_crash_chvt = -1; /* turn off switching */ | |
663996b3 MS |
289 | |
290 | return 0; | |
291 | } | |
292 | ||
60f067b4 | 293 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
663996b3 MS |
294 | |
295 | static const char * const rlmap[] = { | |
296 | "emergency", SPECIAL_EMERGENCY_TARGET, | |
297 | "-b", SPECIAL_EMERGENCY_TARGET, | |
5eef597e | 298 | "rescue", SPECIAL_RESCUE_TARGET, |
663996b3 MS |
299 | "single", SPECIAL_RESCUE_TARGET, |
300 | "-s", SPECIAL_RESCUE_TARGET, | |
301 | "s", SPECIAL_RESCUE_TARGET, | |
302 | "S", SPECIAL_RESCUE_TARGET, | |
303 | "1", SPECIAL_RESCUE_TARGET, | |
e3bff60a MP |
304 | "2", SPECIAL_MULTI_USER_TARGET, |
305 | "3", SPECIAL_MULTI_USER_TARGET, | |
306 | "4", SPECIAL_MULTI_USER_TARGET, | |
307 | "5", SPECIAL_GRAPHICAL_TARGET, | |
663996b3 | 308 | }; |
60f067b4 | 309 | int r; |
663996b3 | 310 | |
60f067b4 | 311 | assert(key); |
663996b3 | 312 | |
60f067b4 | 313 | if (streq(key, "systemd.unit") && value) { |
663996b3 MS |
314 | |
315 | if (!in_initrd()) | |
6300502b | 316 | return free_and_strdup(&arg_default_unit, value); |
663996b3 | 317 | |
60f067b4 | 318 | } else if (streq(key, "rd.systemd.unit") && value) { |
663996b3 | 319 | |
e842803a | 320 | if (in_initrd()) |
6300502b | 321 | return free_and_strdup(&arg_default_unit, value); |
663996b3 | 322 | |
60f067b4 | 323 | } else if (streq(key, "systemd.dump_core") && value) { |
663996b3 | 324 | |
60f067b4 JS |
325 | r = parse_boolean(value); |
326 | if (r < 0) | |
327 | log_warning("Failed to parse dump core switch %s. Ignoring.", value); | |
663996b3 MS |
328 | else |
329 | arg_dump_core = r; | |
330 | ||
6300502b MP |
331 | } else if (streq(key, "systemd.crash_chvt") && value) { |
332 | ||
333 | if (parse_crash_chvt(value) < 0) | |
334 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); | |
335 | ||
60f067b4 | 336 | } else if (streq(key, "systemd.crash_shell") && value) { |
663996b3 | 337 | |
60f067b4 JS |
338 | r = parse_boolean(value); |
339 | if (r < 0) | |
340 | log_warning("Failed to parse crash shell switch %s. Ignoring.", value); | |
663996b3 MS |
341 | else |
342 | arg_crash_shell = r; | |
343 | ||
6300502b | 344 | } else if (streq(key, "systemd.crash_reboot") && value) { |
663996b3 | 345 | |
6300502b MP |
346 | r = parse_boolean(value); |
347 | if (r < 0) | |
348 | log_warning("Failed to parse crash reboot switch %s. Ignoring.", value); | |
663996b3 | 349 | else |
6300502b | 350 | arg_crash_reboot = r; |
663996b3 | 351 | |
60f067b4 | 352 | } else if (streq(key, "systemd.confirm_spawn") && value) { |
663996b3 | 353 | |
60f067b4 JS |
354 | r = parse_boolean(value); |
355 | if (r < 0) | |
356 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); | |
663996b3 | 357 | else |
60f067b4 | 358 | arg_confirm_spawn = r; |
663996b3 | 359 | |
60f067b4 | 360 | } else if (streq(key, "systemd.show_status") && value) { |
663996b3 | 361 | |
60f067b4 JS |
362 | r = parse_show_status(value, &arg_show_status); |
363 | if (r < 0) | |
364 | log_warning("Failed to parse show status switch %s. Ignoring.", value); | |
365 | ||
366 | } else if (streq(key, "systemd.default_standard_output") && value) { | |
663996b3 | 367 | |
60f067b4 JS |
368 | r = exec_output_from_string(value); |
369 | if (r < 0) | |
370 | log_warning("Failed to parse default standard output switch %s. Ignoring.", value); | |
663996b3 MS |
371 | else |
372 | arg_default_std_output = r; | |
663996b3 | 373 | |
60f067b4 JS |
374 | } else if (streq(key, "systemd.default_standard_error") && value) { |
375 | ||
376 | r = exec_output_from_string(value); | |
377 | if (r < 0) | |
378 | log_warning("Failed to parse default standard error switch %s. Ignoring.", value); | |
663996b3 MS |
379 | else |
380 | arg_default_std_error = r; | |
663996b3 | 381 | |
60f067b4 | 382 | } else if (streq(key, "systemd.setenv") && value) { |
663996b3 | 383 | |
60f067b4 | 384 | if (env_assignment_is_valid(value)) { |
14228c0d MB |
385 | char **env; |
386 | ||
60f067b4 | 387 | env = strv_env_set(arg_default_environment, value); |
14228c0d MB |
388 | if (env) |
389 | arg_default_environment = env; | |
390 | else | |
f47781d8 | 391 | log_warning_errno(ENOMEM, "Setting environment variable '%s' failed, ignoring: %m", value); |
14228c0d | 392 | } else |
60f067b4 | 393 | log_warning("Environment variable name '%s' is not valid. Ignoring.", value); |
663996b3 | 394 | |
60f067b4 | 395 | } else if (streq(key, "quiet") && !value) { |
e842803a | 396 | |
60f067b4 JS |
397 | if (arg_show_status == _SHOW_STATUS_UNSET) |
398 | arg_show_status = SHOW_STATUS_AUTO; | |
399 | ||
400 | } else if (streq(key, "debug") && !value) { | |
e842803a | 401 | |
5eef597e MP |
402 | /* Note that log_parse_environment() handles 'debug' |
403 | * too, and sets the log level to LOG_DEBUG. */ | |
e842803a | 404 | |
6300502b | 405 | if (detect_container() > 0) |
60f067b4 JS |
406 | log_set_target(LOG_TARGET_CONSOLE); |
407 | ||
408 | } else if (!in_initrd() && !value) { | |
663996b3 MS |
409 | unsigned i; |
410 | ||
411 | /* SysV compatibility */ | |
412 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) | |
60f067b4 | 413 | if (streq(key, rlmap[i])) |
6300502b | 414 | return free_and_strdup(&arg_default_unit, rlmap[i+1]); |
663996b3 MS |
415 | } |
416 | ||
417 | return 0; | |
418 | } | |
419 | ||
420 | #define DEFINE_SETTER(name, func, descr) \ | |
421 | static int name(const char *unit, \ | |
422 | const char *filename, \ | |
423 | unsigned line, \ | |
424 | const char *section, \ | |
60f067b4 | 425 | unsigned section_line, \ |
663996b3 MS |
426 | const char *lvalue, \ |
427 | int ltype, \ | |
428 | const char *rvalue, \ | |
429 | void *data, \ | |
430 | void *userdata) { \ | |
431 | \ | |
432 | int r; \ | |
433 | \ | |
434 | assert(filename); \ | |
435 | assert(lvalue); \ | |
436 | assert(rvalue); \ | |
437 | \ | |
438 | r = func(rvalue); \ | |
439 | if (r < 0) \ | |
6300502b MP |
440 | log_syntax(unit, LOG_ERR, filename, line, r, \ |
441 | "Invalid " descr "'%s': %m", \ | |
442 | rvalue); \ | |
663996b3 MS |
443 | \ |
444 | return 0; \ | |
445 | } | |
446 | ||
447 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") | |
448 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
449 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
450 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
451 | ||
60f067b4 JS |
452 | static int config_parse_cpu_affinity2( |
453 | const char *unit, | |
454 | const char *filename, | |
455 | unsigned line, | |
456 | const char *section, | |
457 | unsigned section_line, | |
458 | const char *lvalue, | |
459 | int ltype, | |
460 | const char *rvalue, | |
461 | void *data, | |
462 | void *userdata) { | |
663996b3 | 463 | |
d9dfd233 | 464 | _cleanup_cpu_free_ cpu_set_t *c = NULL; |
6300502b | 465 | int ncpus; |
663996b3 | 466 | |
6300502b MP |
467 | ncpus = parse_cpu_set_and_warn(rvalue, &c, unit, filename, line, lvalue); |
468 | if (ncpus < 0) | |
469 | return ncpus; | |
663996b3 | 470 | |
6300502b MP |
471 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) |
472 | log_warning("Failed to set CPU affinity: %m"); | |
663996b3 | 473 | |
663996b3 MS |
474 | return 0; |
475 | } | |
476 | ||
60f067b4 JS |
477 | static int config_parse_show_status( |
478 | const char* unit, | |
479 | const char *filename, | |
480 | unsigned line, | |
481 | const char *section, | |
482 | unsigned section_line, | |
483 | const char *lvalue, | |
484 | int ltype, | |
485 | const char *rvalue, | |
486 | void *data, | |
487 | void *userdata) { | |
488 | ||
489 | int k; | |
490 | ShowStatus *b = data; | |
491 | ||
492 | assert(filename); | |
493 | assert(lvalue); | |
494 | assert(rvalue); | |
495 | assert(data); | |
496 | ||
497 | k = parse_show_status(rvalue, b); | |
498 | if (k < 0) { | |
6300502b | 499 | log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue); |
60f067b4 JS |
500 | return 0; |
501 | } | |
502 | ||
503 | return 0; | |
504 | } | |
505 | ||
6300502b MP |
506 | static int config_parse_crash_chvt( |
507 | const char* unit, | |
508 | const char *filename, | |
509 | unsigned line, | |
510 | const char *section, | |
511 | unsigned section_line, | |
512 | const char *lvalue, | |
513 | int ltype, | |
514 | const char *rvalue, | |
515 | void *data, | |
516 | void *userdata) { | |
663996b3 | 517 | |
6300502b | 518 | int r; |
663996b3 | 519 | |
6300502b MP |
520 | assert(filename); |
521 | assert(lvalue); | |
522 | assert(rvalue); | |
663996b3 | 523 | |
6300502b MP |
524 | r = parse_crash_chvt(rvalue); |
525 | if (r < 0) { | |
526 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue); | |
527 | return 0; | |
528 | } | |
663996b3 | 529 | |
6300502b | 530 | return 0; |
663996b3 MS |
531 | } |
532 | ||
533 | static int config_parse_join_controllers(const char *unit, | |
534 | const char *filename, | |
535 | unsigned line, | |
536 | const char *section, | |
60f067b4 | 537 | unsigned section_line, |
663996b3 MS |
538 | const char *lvalue, |
539 | int ltype, | |
540 | const char *rvalue, | |
541 | void *data, | |
542 | void *userdata) { | |
543 | ||
d9dfd233 | 544 | const char *whole_rvalue = rvalue; |
663996b3 | 545 | unsigned n = 0; |
663996b3 MS |
546 | |
547 | assert(filename); | |
548 | assert(lvalue); | |
549 | assert(rvalue); | |
550 | ||
6300502b | 551 | arg_join_controllers = strv_free_free(arg_join_controllers); |
663996b3 | 552 | |
d9dfd233 MP |
553 | for (;;) { |
554 | _cleanup_free_ char *word = NULL; | |
555 | char **l; | |
556 | int r; | |
663996b3 | 557 | |
d9dfd233 MP |
558 | r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES); |
559 | if (r < 0) { | |
560 | log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue); | |
561 | return r; | |
562 | } | |
563 | if (r == 0) | |
564 | break; | |
663996b3 | 565 | |
d9dfd233 MP |
566 | l = strv_split(word, ","); |
567 | if (!l) | |
6300502b | 568 | return log_oom(); |
663996b3 MS |
569 | strv_uniq(l); |
570 | ||
571 | if (strv_length(l) <= 1) { | |
572 | strv_free(l); | |
573 | continue; | |
574 | } | |
575 | ||
576 | if (!arg_join_controllers) { | |
577 | arg_join_controllers = new(char**, 2); | |
578 | if (!arg_join_controllers) { | |
579 | strv_free(l); | |
580 | return log_oom(); | |
581 | } | |
582 | ||
583 | arg_join_controllers[0] = l; | |
584 | arg_join_controllers[1] = NULL; | |
585 | ||
586 | n = 1; | |
587 | } else { | |
588 | char ***a; | |
589 | char ***t; | |
590 | ||
591 | t = new0(char**, n+2); | |
592 | if (!t) { | |
593 | strv_free(l); | |
594 | return log_oom(); | |
595 | } | |
596 | ||
597 | n = 0; | |
598 | ||
599 | for (a = arg_join_controllers; *a; a++) { | |
600 | ||
601 | if (strv_overlap(*a, l)) { | |
6300502b | 602 | if (strv_extend_strv(&l, *a, false) < 0) { |
663996b3 MS |
603 | strv_free(l); |
604 | strv_free_free(t); | |
605 | return log_oom(); | |
606 | } | |
607 | ||
663996b3 MS |
608 | } else { |
609 | char **c; | |
610 | ||
611 | c = strv_copy(*a); | |
612 | if (!c) { | |
613 | strv_free(l); | |
614 | strv_free_free(t); | |
615 | return log_oom(); | |
616 | } | |
617 | ||
618 | t[n++] = c; | |
619 | } | |
620 | } | |
621 | ||
622 | t[n++] = strv_uniq(l); | |
623 | ||
624 | strv_free_free(arg_join_controllers); | |
625 | arg_join_controllers = t; | |
626 | } | |
627 | } | |
d9dfd233 | 628 | if (!isempty(rvalue)) |
6300502b | 629 | log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring."); |
663996b3 MS |
630 | |
631 | return 0; | |
632 | } | |
633 | ||
634 | static int parse_config_file(void) { | |
635 | ||
636 | const ConfigTableItem items[] = { | |
60f067b4 JS |
637 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
638 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
639 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
640 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
641 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
6300502b MP |
642 | { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, NULL }, |
643 | { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, NULL }, | |
60f067b4 | 644 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, |
6300502b | 645 | { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot }, |
60f067b4 | 646 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, |
60f067b4 JS |
647 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, |
648 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
649 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
650 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
651 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, | |
652 | #ifdef HAVE_SECCOMP | |
653 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, | |
654 | #endif | |
655 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, | |
656 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, | |
657 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, | |
658 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
659 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
660 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
661 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
662 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, | |
663 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, | |
664 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
665 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, | |
666 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, | |
667 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, | |
668 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, | |
669 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, | |
670 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, | |
671 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, | |
672 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, | |
673 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, | |
674 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, | |
675 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, | |
676 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, | |
677 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, | |
678 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, | |
679 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, | |
680 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, | |
681 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, | |
682 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, | |
683 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, | |
6300502b | 684 | { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_default_tasks_accounting }, |
60f067b4 | 685 | {} |
663996b3 MS |
686 | }; |
687 | ||
f47781d8 | 688 | const char *fn, *conf_dirs_nulstr; |
663996b3 | 689 | |
e3bff60a MP |
690 | fn = arg_running_as == MANAGER_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf"; |
691 | conf_dirs_nulstr = arg_running_as == MANAGER_SYSTEM ? CONF_DIRS_NULSTR("systemd/system.conf") : CONF_DIRS_NULSTR("systemd/user.conf"); | |
f47781d8 MP |
692 | config_parse_many(fn, conf_dirs_nulstr, "Manager\0", |
693 | config_item_table_lookup, items, false, NULL); | |
663996b3 MS |
694 | |
695 | return 0; | |
696 | } | |
697 | ||
7035cd9e MP |
698 | static void manager_set_defaults(Manager *m) { |
699 | ||
700 | assert(m); | |
701 | ||
702 | m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; | |
703 | m->default_std_output = arg_default_std_output; | |
704 | m->default_std_error = arg_default_std_error; | |
705 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
706 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
707 | m->default_restart_usec = arg_default_restart_usec; | |
708 | m->default_start_limit_interval = arg_default_start_limit_interval; | |
709 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
710 | m->default_cpu_accounting = arg_default_cpu_accounting; | |
711 | m->default_blockio_accounting = arg_default_blockio_accounting; | |
712 | m->default_memory_accounting = arg_default_memory_accounting; | |
6300502b | 713 | m->default_tasks_accounting = arg_default_tasks_accounting; |
7035cd9e MP |
714 | |
715 | manager_set_default_rlimits(m, arg_default_rlimit); | |
716 | manager_environment_add(m, NULL, arg_default_environment); | |
717 | } | |
718 | ||
663996b3 MS |
719 | static int parse_argv(int argc, char *argv[]) { |
720 | ||
721 | enum { | |
722 | ARG_LOG_LEVEL = 0x100, | |
723 | ARG_LOG_TARGET, | |
724 | ARG_LOG_COLOR, | |
725 | ARG_LOG_LOCATION, | |
726 | ARG_UNIT, | |
727 | ARG_SYSTEM, | |
728 | ARG_USER, | |
729 | ARG_TEST, | |
5eef597e | 730 | ARG_NO_PAGER, |
663996b3 MS |
731 | ARG_VERSION, |
732 | ARG_DUMP_CONFIGURATION_ITEMS, | |
733 | ARG_DUMP_CORE, | |
6300502b | 734 | ARG_CRASH_CHVT, |
663996b3 | 735 | ARG_CRASH_SHELL, |
6300502b | 736 | ARG_CRASH_REBOOT, |
663996b3 MS |
737 | ARG_CONFIRM_SPAWN, |
738 | ARG_SHOW_STATUS, | |
739 | ARG_DESERIALIZE, | |
740 | ARG_SWITCHED_ROOT, | |
663996b3 MS |
741 | ARG_DEFAULT_STD_OUTPUT, |
742 | ARG_DEFAULT_STD_ERROR | |
743 | }; | |
744 | ||
745 | static const struct option options[] = { | |
746 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, | |
747 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
748 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, | |
749 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
750 | { "unit", required_argument, NULL, ARG_UNIT }, | |
751 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
752 | { "user", no_argument, NULL, ARG_USER }, | |
753 | { "test", no_argument, NULL, ARG_TEST }, | |
5eef597e | 754 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
663996b3 MS |
755 | { "help", no_argument, NULL, 'h' }, |
756 | { "version", no_argument, NULL, ARG_VERSION }, | |
757 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, | |
758 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, | |
6300502b | 759 | { "crash-chvt", required_argument, NULL, ARG_CRASH_CHVT }, |
663996b3 | 760 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, |
6300502b | 761 | { "crash-reboot", optional_argument, NULL, ARG_CRASH_REBOOT }, |
663996b3 MS |
762 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, |
763 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, | |
764 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, | |
765 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, | |
663996b3 MS |
766 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
767 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
60f067b4 | 768 | {} |
663996b3 MS |
769 | }; |
770 | ||
771 | int c, r; | |
772 | ||
773 | assert(argc >= 1); | |
774 | assert(argv); | |
775 | ||
776 | if (getpid() == 1) | |
777 | opterr = 0; | |
778 | ||
779 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) | |
780 | ||
781 | switch (c) { | |
782 | ||
783 | case ARG_LOG_LEVEL: | |
60f067b4 JS |
784 | r = log_set_max_level_from_string(optarg); |
785 | if (r < 0) { | |
663996b3 MS |
786 | log_error("Failed to parse log level %s.", optarg); |
787 | return r; | |
788 | } | |
789 | ||
790 | break; | |
791 | ||
792 | case ARG_LOG_TARGET: | |
60f067b4 JS |
793 | r = log_set_target_from_string(optarg); |
794 | if (r < 0) { | |
663996b3 MS |
795 | log_error("Failed to parse log target %s.", optarg); |
796 | return r; | |
797 | } | |
798 | ||
799 | break; | |
800 | ||
801 | case ARG_LOG_COLOR: | |
802 | ||
803 | if (optarg) { | |
60f067b4 JS |
804 | r = log_show_color_from_string(optarg); |
805 | if (r < 0) { | |
663996b3 MS |
806 | log_error("Failed to parse log color setting %s.", optarg); |
807 | return r; | |
808 | } | |
809 | } else | |
810 | log_show_color(true); | |
811 | ||
812 | break; | |
813 | ||
814 | case ARG_LOG_LOCATION: | |
663996b3 | 815 | if (optarg) { |
60f067b4 JS |
816 | r = log_show_location_from_string(optarg); |
817 | if (r < 0) { | |
663996b3 MS |
818 | log_error("Failed to parse log location setting %s.", optarg); |
819 | return r; | |
820 | } | |
821 | } else | |
822 | log_show_location(true); | |
823 | ||
824 | break; | |
825 | ||
826 | case ARG_DEFAULT_STD_OUTPUT: | |
60f067b4 JS |
827 | r = exec_output_from_string(optarg); |
828 | if (r < 0) { | |
663996b3 MS |
829 | log_error("Failed to parse default standard output setting %s.", optarg); |
830 | return r; | |
831 | } else | |
832 | arg_default_std_output = r; | |
833 | break; | |
834 | ||
835 | case ARG_DEFAULT_STD_ERROR: | |
60f067b4 JS |
836 | r = exec_output_from_string(optarg); |
837 | if (r < 0) { | |
663996b3 MS |
838 | log_error("Failed to parse default standard error output setting %s.", optarg); |
839 | return r; | |
840 | } else | |
841 | arg_default_std_error = r; | |
842 | break; | |
843 | ||
844 | case ARG_UNIT: | |
845 | ||
6300502b | 846 | r = free_and_strdup(&arg_default_unit, optarg); |
f47781d8 MP |
847 | if (r < 0) |
848 | return log_error_errno(r, "Failed to set default unit %s: %m", optarg); | |
663996b3 MS |
849 | |
850 | break; | |
851 | ||
852 | case ARG_SYSTEM: | |
e3bff60a | 853 | arg_running_as = MANAGER_SYSTEM; |
663996b3 MS |
854 | break; |
855 | ||
856 | case ARG_USER: | |
e3bff60a | 857 | arg_running_as = MANAGER_USER; |
663996b3 MS |
858 | break; |
859 | ||
860 | case ARG_TEST: | |
861 | arg_action = ACTION_TEST; | |
5eef597e MP |
862 | if (arg_no_pager < 0) |
863 | arg_no_pager = true; | |
864 | break; | |
865 | ||
866 | case ARG_NO_PAGER: | |
867 | arg_no_pager = true; | |
663996b3 MS |
868 | break; |
869 | ||
870 | case ARG_VERSION: | |
871 | arg_action = ACTION_VERSION; | |
872 | break; | |
873 | ||
874 | case ARG_DUMP_CONFIGURATION_ITEMS: | |
875 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; | |
876 | break; | |
877 | ||
878 | case ARG_DUMP_CORE: | |
6300502b MP |
879 | if (!optarg) |
880 | arg_dump_core = true; | |
881 | else { | |
882 | r = parse_boolean(optarg); | |
883 | if (r < 0) | |
884 | return log_error_errno(r, "Failed to parse dump core boolean: %s", optarg); | |
885 | arg_dump_core = r; | |
663996b3 | 886 | } |
6300502b MP |
887 | break; |
888 | ||
889 | case ARG_CRASH_CHVT: | |
890 | r = parse_crash_chvt(optarg); | |
891 | if (r < 0) | |
892 | return log_error_errno(r, "Failed to parse crash virtual terminal index: %s", optarg); | |
663996b3 MS |
893 | break; |
894 | ||
895 | case ARG_CRASH_SHELL: | |
6300502b MP |
896 | if (!optarg) |
897 | arg_crash_shell = true; | |
898 | else { | |
899 | r = parse_boolean(optarg); | |
900 | if (r < 0) | |
901 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
902 | arg_crash_shell = r; | |
903 | } | |
904 | break; | |
905 | ||
906 | case ARG_CRASH_REBOOT: | |
907 | if (!optarg) | |
908 | arg_crash_reboot = true; | |
909 | else { | |
910 | r = parse_boolean(optarg); | |
911 | if (r < 0) | |
912 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
913 | arg_crash_reboot = r; | |
663996b3 | 914 | } |
663996b3 MS |
915 | break; |
916 | ||
917 | case ARG_CONFIRM_SPAWN: | |
918 | r = optarg ? parse_boolean(optarg) : 1; | |
919 | if (r < 0) { | |
920 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
921 | return r; | |
922 | } | |
923 | arg_confirm_spawn = r; | |
924 | break; | |
925 | ||
926 | case ARG_SHOW_STATUS: | |
60f067b4 JS |
927 | if (optarg) { |
928 | r = parse_show_status(optarg, &arg_show_status); | |
929 | if (r < 0) { | |
930 | log_error("Failed to parse show status boolean %s.", optarg); | |
931 | return r; | |
932 | } | |
933 | } else | |
934 | arg_show_status = SHOW_STATUS_YES; | |
663996b3 MS |
935 | break; |
936 | ||
937 | case ARG_DESERIALIZE: { | |
938 | int fd; | |
939 | FILE *f; | |
940 | ||
941 | r = safe_atoi(optarg, &fd); | |
942 | if (r < 0 || fd < 0) { | |
943 | log_error("Failed to parse deserialize option %s.", optarg); | |
6300502b | 944 | return -EINVAL; |
663996b3 MS |
945 | } |
946 | ||
6300502b | 947 | (void) fd_cloexec(fd, true); |
663996b3 MS |
948 | |
949 | f = fdopen(fd, "r"); | |
f47781d8 MP |
950 | if (!f) |
951 | return log_error_errno(errno, "Failed to open serialization fd: %m"); | |
663996b3 | 952 | |
6300502b | 953 | safe_fclose(arg_serialization); |
60f067b4 | 954 | arg_serialization = f; |
663996b3 MS |
955 | |
956 | break; | |
957 | } | |
958 | ||
959 | case ARG_SWITCHED_ROOT: | |
960 | arg_switched_root = true; | |
961 | break; | |
962 | ||
663996b3 MS |
963 | case 'h': |
964 | arg_action = ACTION_HELP; | |
5eef597e MP |
965 | if (arg_no_pager < 0) |
966 | arg_no_pager = true; | |
663996b3 MS |
967 | break; |
968 | ||
969 | case 'D': | |
970 | log_set_max_level(LOG_DEBUG); | |
971 | break; | |
972 | ||
973 | case 'b': | |
974 | case 's': | |
975 | case 'z': | |
976 | /* Just to eat away the sysvinit kernel | |
977 | * cmdline args without getopt() error | |
978 | * messages that we'll parse in | |
979 | * parse_proc_cmdline_word() or ignore. */ | |
980 | ||
981 | case '?': | |
5eef597e | 982 | if (getpid() != 1) |
663996b3 | 983 | return -EINVAL; |
5eef597e MP |
984 | else |
985 | return 0; | |
663996b3 | 986 | |
5eef597e MP |
987 | default: |
988 | assert_not_reached("Unhandled option code."); | |
663996b3 MS |
989 | } |
990 | ||
991 | if (optind < argc && getpid() != 1) { | |
992 | /* Hmm, when we aren't run as init system | |
993 | * let's complain about excess arguments */ | |
994 | ||
995 | log_error("Excess arguments."); | |
996 | return -EINVAL; | |
997 | } | |
998 | ||
663996b3 MS |
999 | return 0; |
1000 | } | |
1001 | ||
1002 | static int help(void) { | |
1003 | ||
1004 | printf("%s [OPTIONS...]\n\n" | |
1005 | "Starts up and maintains the system or user services.\n\n" | |
1006 | " -h --help Show this help\n" | |
1007 | " --test Determine startup sequence, dump it and exit\n" | |
5eef597e | 1008 | " --no-pager Do not pipe output into a pager\n" |
663996b3 | 1009 | " --dump-configuration-items Dump understood unit configuration items\n" |
663996b3 MS |
1010 | " --unit=UNIT Set default unit\n" |
1011 | " --system Run a system instance, even if PID != 1\n" | |
1012 | " --user Run a user instance\n" | |
6300502b MP |
1013 | " --dump-core[=BOOL] Dump core on crash\n" |
1014 | " --crash-vt=NR Change to specified VT on crash\n" | |
1015 | " --crash-reboot[=BOOL] Reboot on crash\n" | |
1016 | " --crash-shell[=BOOL] Run shell on crash\n" | |
1017 | " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n" | |
1018 | " --show-status[=BOOL] Show status updates on the console during bootup\n" | |
5eef597e | 1019 | " --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n" |
663996b3 | 1020 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
6300502b MP |
1021 | " --log-color[=BOOL] Highlight important log messages\n" |
1022 | " --log-location[=BOOL] Include code location in log messages\n" | |
663996b3 MS |
1023 | " --default-standard-output= Set default standard output for services\n" |
1024 | " --default-standard-error= Set default standard error output for services\n", | |
1025 | program_invocation_short_name); | |
1026 | ||
1027 | return 0; | |
1028 | } | |
1029 | ||
663996b3 | 1030 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
6300502b MP |
1031 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1032 | _cleanup_fclose_ FILE *f = NULL; | |
663996b3 MS |
1033 | int r; |
1034 | ||
1035 | assert(m); | |
1036 | assert(_f); | |
1037 | assert(_fds); | |
1038 | ||
663996b3 | 1039 | r = manager_open_serialization(m, &f); |
6300502b MP |
1040 | if (r < 0) |
1041 | return log_error_errno(r, "Failed to create serialization file: %m"); | |
663996b3 | 1042 | |
14228c0d MB |
1043 | /* Make sure nothing is really destructed when we shut down */ |
1044 | m->n_reloading ++; | |
60f067b4 | 1045 | bus_manager_send_reloading(m, true); |
14228c0d | 1046 | |
663996b3 | 1047 | fds = fdset_new(); |
6300502b MP |
1048 | if (!fds) |
1049 | return log_oom(); | |
663996b3 MS |
1050 | |
1051 | r = manager_serialize(m, f, fds, switching_root); | |
6300502b MP |
1052 | if (r < 0) |
1053 | return log_error_errno(r, "Failed to serialize state: %m"); | |
663996b3 | 1054 | |
6300502b MP |
1055 | if (fseeko(f, 0, SEEK_SET) == (off_t) -1) |
1056 | return log_error_errno(errno, "Failed to rewind serialization fd: %m"); | |
663996b3 MS |
1057 | |
1058 | r = fd_cloexec(fileno(f), false); | |
6300502b MP |
1059 | if (r < 0) |
1060 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m"); | |
663996b3 MS |
1061 | |
1062 | r = fdset_cloexec(fds, false); | |
6300502b MP |
1063 | if (r < 0) |
1064 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m"); | |
663996b3 MS |
1065 | |
1066 | *_f = f; | |
1067 | *_fds = fds; | |
1068 | ||
6300502b MP |
1069 | f = NULL; |
1070 | fds = NULL; | |
663996b3 | 1071 | |
6300502b | 1072 | return 0; |
663996b3 MS |
1073 | } |
1074 | ||
1075 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { | |
1076 | struct rlimit nl; | |
1077 | int r; | |
1078 | ||
1079 | assert(saved_rlimit); | |
1080 | ||
1081 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1082 | * later when transitioning from the initrd to the main | |
1083 | * systemd or suchlike. */ | |
f47781d8 MP |
1084 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) |
1085 | return log_error_errno(errno, "Reading RLIMIT_NOFILE failed: %m"); | |
663996b3 MS |
1086 | |
1087 | /* Make sure forked processes get the default kernel setting */ | |
1088 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1089 | struct rlimit *rl; | |
1090 | ||
1091 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1092 | if (!rl) | |
1093 | return log_oom(); | |
1094 | ||
1095 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1096 | } | |
1097 | ||
1098 | /* Bump up the resource limit for ourselves substantially */ | |
1099 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1100 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
f47781d8 MP |
1101 | if (r < 0) |
1102 | return log_error_errno(r, "Setting RLIMIT_NOFILE failed: %m"); | |
663996b3 MS |
1103 | |
1104 | return 0; | |
1105 | } | |
1106 | ||
663996b3 | 1107 | static void test_mtab(void) { |
663996b3 | 1108 | |
e842803a MB |
1109 | static const char ok[] = |
1110 | "/proc/self/mounts\0" | |
1111 | "/proc/mounts\0" | |
1112 | "../proc/self/mounts\0" | |
1113 | "../proc/mounts\0"; | |
663996b3 | 1114 | |
e842803a MB |
1115 | _cleanup_free_ char *p = NULL; |
1116 | int r; | |
663996b3 | 1117 | |
e842803a MB |
1118 | /* Check that /etc/mtab is a symlink to the right place or |
1119 | * non-existing. But certainly not a file, or a symlink to | |
1120 | * some weird place... */ | |
663996b3 | 1121 | |
e842803a MB |
1122 | r = readlink_malloc("/etc/mtab", &p); |
1123 | if (r == -ENOENT) | |
1124 | return; | |
1125 | if (r >= 0 && nulstr_contains(ok, p)) | |
1126 | return; | |
663996b3 | 1127 | |
6300502b MP |
1128 | log_error("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1129 | "This is not supported anymore. " | |
1130 | "Please replace /etc/mtab with a symlink to /proc/self/mounts."); | |
1131 | freeze_or_reboot(); | |
663996b3 MS |
1132 | } |
1133 | ||
1134 | static void test_usr(void) { | |
1135 | ||
1136 | /* Check that /usr is not a separate fs */ | |
1137 | ||
1138 | if (dir_is_empty("/usr") <= 0) | |
1139 | return; | |
1140 | ||
e735f4d4 | 1141 | log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. " |
663996b3 MS |
1142 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1143 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1144 | } | |
1145 | ||
663996b3 MS |
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 | |
e735f4d4 | 1149 | * "cpuset" doesn't really work for groups with no initialized |
663996b3 MS |
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); | |
6300502b MP |
1157 | if (!arg_join_controllers[0]) |
1158 | goto oom; | |
663996b3 | 1159 | |
6300502b MP |
1160 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
1161 | if (!arg_join_controllers[1]) | |
1162 | goto oom; | |
663996b3 | 1163 | |
6300502b | 1164 | arg_join_controllers[2] = NULL; |
663996b3 | 1165 | return 0; |
6300502b MP |
1166 | |
1167 | oom: | |
1168 | arg_join_controllers = strv_free_free(arg_join_controllers); | |
1169 | return -ENOMEM; | |
663996b3 MS |
1170 | } |
1171 | ||
60f067b4 JS |
1172 | static int enforce_syscall_archs(Set *archs) { |
1173 | #ifdef HAVE_SECCOMP | |
1174 | scmp_filter_ctx *seccomp; | |
1175 | Iterator i; | |
1176 | void *id; | |
1177 | int r; | |
1178 | ||
1179 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1180 | if (!seccomp) | |
1181 | return log_oom(); | |
1182 | ||
1183 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1184 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1185 | if (r == -EEXIST) | |
1186 | continue; | |
1187 | if (r < 0) { | |
f47781d8 | 1188 | log_error_errno(r, "Failed to add architecture to seccomp: %m"); |
60f067b4 JS |
1189 | goto finish; |
1190 | } | |
1191 | } | |
1192 | ||
1193 | r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); | |
1194 | if (r < 0) { | |
f47781d8 | 1195 | log_error_errno(r, "Failed to unset NO_NEW_PRIVS: %m"); |
60f067b4 JS |
1196 | goto finish; |
1197 | } | |
1198 | ||
1199 | r = seccomp_load(seccomp); | |
1200 | if (r < 0) | |
f47781d8 | 1201 | log_error_errno(r, "Failed to add install architecture seccomp: %m"); |
60f067b4 JS |
1202 | |
1203 | finish: | |
1204 | seccomp_release(seccomp); | |
1205 | return r; | |
1206 | #else | |
1207 | return 0; | |
1208 | #endif | |
1209 | } | |
1210 | ||
1211 | static int status_welcome(void) { | |
1212 | _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; | |
1213 | int r; | |
1214 | ||
1215 | r = parse_env_file("/etc/os-release", NEWLINE, | |
1216 | "PRETTY_NAME", &pretty_name, | |
1217 | "ANSI_COLOR", &ansi_color, | |
1218 | NULL); | |
6300502b | 1219 | if (r == -ENOENT) |
e842803a MB |
1220 | r = parse_env_file("/usr/lib/os-release", NEWLINE, |
1221 | "PRETTY_NAME", &pretty_name, | |
1222 | "ANSI_COLOR", &ansi_color, | |
1223 | NULL); | |
60f067b4 JS |
1224 | |
1225 | if (r < 0 && r != -ENOENT) | |
f47781d8 | 1226 | log_warning_errno(r, "Failed to read os-release file: %m"); |
60f067b4 JS |
1227 | |
1228 | return status_printf(NULL, false, false, | |
1229 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1230 | isempty(ansi_color) ? "1" : ansi_color, | |
1231 | isempty(pretty_name) ? "Linux" : pretty_name); | |
1232 | } | |
1233 | ||
1234 | static int write_container_id(void) { | |
1235 | const char *c; | |
1236 | ||
1237 | c = getenv("container"); | |
1238 | if (isempty(c)) | |
1239 | return 0; | |
1240 | ||
7035cd9e | 1241 | return write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE); |
60f067b4 JS |
1242 | } |
1243 | ||
663996b3 MS |
1244 | int main(int argc, char *argv[]) { |
1245 | Manager *m = NULL; | |
1246 | int r, retval = EXIT_FAILURE; | |
1247 | usec_t before_startup, after_startup; | |
1248 | char timespan[FORMAT_TIMESPAN_MAX]; | |
1249 | FDSet *fds = NULL; | |
1250 | bool reexecute = false; | |
1251 | const char *shutdown_verb = NULL; | |
e735f4d4 MP |
1252 | dual_timestamp initrd_timestamp = DUAL_TIMESTAMP_NULL; |
1253 | dual_timestamp userspace_timestamp = DUAL_TIMESTAMP_NULL; | |
1254 | dual_timestamp kernel_timestamp = DUAL_TIMESTAMP_NULL; | |
1255 | dual_timestamp security_start_timestamp = DUAL_TIMESTAMP_NULL; | |
1256 | dual_timestamp security_finish_timestamp = DUAL_TIMESTAMP_NULL; | |
663996b3 MS |
1257 | static char systemd[] = "systemd"; |
1258 | bool skip_setup = false; | |
60f067b4 | 1259 | unsigned j; |
663996b3 MS |
1260 | bool loaded_policy = false; |
1261 | bool arm_reboot_watchdog = false; | |
1262 | bool queue_default_job = false; | |
e842803a | 1263 | bool empty_etc = false; |
663996b3 | 1264 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
e735f4d4 | 1265 | struct rlimit saved_rlimit_nofile = RLIMIT_MAKE_CONST(0); |
f47781d8 | 1266 | const char *error_message = NULL; |
663996b3 MS |
1267 | |
1268 | #ifdef HAVE_SYSV_COMPAT | |
1269 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { | |
1270 | /* This is compatibility support for SysV, where | |
1271 | * calling init as a user is identical to telinit. */ | |
1272 | ||
1273 | errno = -ENOENT; | |
1274 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
f47781d8 | 1275 | log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); |
663996b3 MS |
1276 | return 1; |
1277 | } | |
1278 | #endif | |
1279 | ||
1280 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); | |
1281 | dual_timestamp_get(&userspace_timestamp); | |
1282 | ||
1283 | /* Determine if this is a reexecution or normal bootup. We do | |
1284 | * the full command line parsing much later, so let's just | |
1285 | * have a quick peek here. */ | |
1286 | if (strv_find(argv+1, "--deserialize")) | |
1287 | skip_setup = true; | |
1288 | ||
1289 | /* If we have switched root, do all the special setup | |
1290 | * things */ | |
1291 | if (strv_find(argv+1, "--switched-root")) | |
1292 | skip_setup = false; | |
1293 | ||
1294 | /* If we get started via the /sbin/init symlink then we are | |
1295 | called 'init'. After a subsequent reexecution we are then | |
1296 | called 'systemd'. That is confusing, hence let's call us | |
1297 | systemd right-away. */ | |
1298 | program_invocation_short_name = systemd; | |
1299 | prctl(PR_SET_NAME, systemd); | |
1300 | ||
1301 | saved_argv = argv; | |
1302 | saved_argc = argc; | |
1303 | ||
1304 | log_show_color(isatty(STDERR_FILENO) > 0); | |
5eef597e | 1305 | log_set_upgrade_syslog_to_journal(true); |
663996b3 | 1306 | |
14228c0d MB |
1307 | /* Disable the umask logic */ |
1308 | if (getpid() == 1) | |
1309 | umask(0); | |
1310 | ||
6300502b | 1311 | if (getpid() == 1 && detect_container() <= 0) { |
14228c0d | 1312 | |
663996b3 | 1313 | /* Running outside of a container as PID 1 */ |
e3bff60a | 1314 | arg_running_as = MANAGER_SYSTEM; |
663996b3 MS |
1315 | make_null_stdio(); |
1316 | log_set_target(LOG_TARGET_KMSG); | |
1317 | log_open(); | |
1318 | ||
14228c0d | 1319 | if (in_initrd()) |
663996b3 | 1320 | initrd_timestamp = userspace_timestamp; |
663996b3 MS |
1321 | |
1322 | if (!skip_setup) { | |
1323 | mount_setup_early(); | |
60f067b4 | 1324 | dual_timestamp_get(&security_start_timestamp); |
f47781d8 MP |
1325 | if (mac_selinux_setup(&loaded_policy) < 0) { |
1326 | error_message = "Failed to load SELinux policy"; | |
663996b3 | 1327 | goto finish; |
f47781d8 MP |
1328 | } else if (ima_setup() < 0) { |
1329 | error_message = "Failed to load IMA policy"; | |
663996b3 | 1330 | goto finish; |
f47781d8 MP |
1331 | } else if (mac_smack_setup(&loaded_policy) < 0) { |
1332 | error_message = "Failed to load SMACK policy"; | |
663996b3 | 1333 | goto finish; |
f47781d8 | 1334 | } |
60f067b4 | 1335 | dual_timestamp_get(&security_finish_timestamp); |
663996b3 MS |
1336 | } |
1337 | ||
f47781d8 MP |
1338 | if (mac_selinux_init(NULL) < 0) { |
1339 | error_message = "Failed to initialize SELinux policy"; | |
663996b3 | 1340 | goto finish; |
f47781d8 | 1341 | } |
663996b3 MS |
1342 | |
1343 | if (!skip_setup) { | |
60f067b4 | 1344 | if (clock_is_localtime() > 0) { |
663996b3 MS |
1345 | int min; |
1346 | ||
5eef597e MP |
1347 | /* |
1348 | * The very first call of settimeofday() also does a time warp in the kernel. | |
1349 | * | |
1350 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on | |
1351 | * external tools to take care of maintaining the RTC and do all adjustments. | |
1352 | * This matches the behavior of Windows, which leaves the RTC alone if the | |
1353 | * registry tells that the RTC runs in UTC. | |
1354 | */ | |
60f067b4 | 1355 | r = clock_set_timezone(&min); |
663996b3 | 1356 | if (r < 0) |
f47781d8 | 1357 | log_error_errno(r, "Failed to apply local time delta, ignoring: %m"); |
663996b3 MS |
1358 | else |
1359 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
1360 | } else if (!in_initrd()) { | |
1361 | /* | |
5eef597e | 1362 | * Do a dummy very first call to seal the kernel's time warp magic. |
663996b3 MS |
1363 | * |
1364 | * Do not call this this from inside the initrd. The initrd might not | |
1365 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1366 | * that way. In such case, we need to delay the time-warp or the sealing | |
1367 | * until we reach the real system. | |
5eef597e MP |
1368 | * |
1369 | * Do no set the kernel's timezone. The concept of local time cannot | |
1370 | * be supported reliably, the time will jump or be incorrect at every daylight | |
1371 | * saving time change. All kernel local time concepts will be treated | |
1372 | * as UTC that way. | |
663996b3 | 1373 | */ |
5eef597e | 1374 | clock_reset_timewarp(); |
663996b3 MS |
1375 | } |
1376 | } | |
1377 | ||
1378 | /* Set the default for later on, but don't actually | |
1379 | * open the logs like this for now. Note that if we | |
1380 | * are transitioning from the initrd there might still | |
1381 | * be journal fd open, and we shouldn't attempt | |
1382 | * opening that before we parsed /proc/cmdline which | |
1383 | * might redirect output elsewhere. */ | |
1384 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1385 | ||
1386 | } else if (getpid() == 1) { | |
1387 | /* Running inside a container, as PID 1 */ | |
e3bff60a | 1388 | arg_running_as = MANAGER_SYSTEM; |
663996b3 | 1389 | log_set_target(LOG_TARGET_CONSOLE); |
60f067b4 | 1390 | log_close_console(); /* force reopen of /dev/console */ |
663996b3 MS |
1391 | log_open(); |
1392 | ||
1393 | /* For the later on, see above... */ | |
1394 | log_set_target(LOG_TARGET_JOURNAL); | |
1395 | ||
1396 | /* clear the kernel timestamp, | |
1397 | * because we are in a container */ | |
1398 | kernel_timestamp.monotonic = 0ULL; | |
1399 | kernel_timestamp.realtime = 0ULL; | |
1400 | ||
1401 | } else { | |
1402 | /* Running as user instance */ | |
e3bff60a | 1403 | arg_running_as = MANAGER_USER; |
663996b3 MS |
1404 | log_set_target(LOG_TARGET_AUTO); |
1405 | log_open(); | |
1406 | ||
1407 | /* clear the kernel timestamp, | |
1408 | * because we are not PID 1 */ | |
d9dfd233 | 1409 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
663996b3 MS |
1410 | } |
1411 | ||
1412 | /* Initialize default unit */ | |
6300502b | 1413 | r = free_and_strdup(&arg_default_unit, SPECIAL_DEFAULT_TARGET); |
663996b3 | 1414 | if (r < 0) { |
f47781d8 MP |
1415 | log_emergency_errno(r, "Failed to set default unit %s: %m", SPECIAL_DEFAULT_TARGET); |
1416 | error_message = "Failed to set default unit"; | |
663996b3 MS |
1417 | goto finish; |
1418 | } | |
1419 | ||
1420 | r = initialize_join_controllers(); | |
f47781d8 | 1421 | if (r < 0) { |
e3bff60a | 1422 | error_message = "Failed to initialize cgroup controllers"; |
663996b3 | 1423 | goto finish; |
f47781d8 | 1424 | } |
663996b3 MS |
1425 | |
1426 | /* Mount /proc, /sys and friends, so that /proc/cmdline and | |
1427 | * /proc/$PID/fd is available. */ | |
1428 | if (getpid() == 1) { | |
f47781d8 MP |
1429 | |
1430 | /* Load the kernel modules early, so that we kdbus.ko is loaded before kdbusfs shall be mounted */ | |
1431 | if (!skip_setup) | |
1432 | kmod_setup(); | |
1433 | ||
663996b3 | 1434 | r = mount_setup(loaded_policy); |
f47781d8 MP |
1435 | if (r < 0) { |
1436 | error_message = "Failed to mount API filesystems"; | |
663996b3 | 1437 | goto finish; |
f47781d8 | 1438 | } |
663996b3 MS |
1439 | } |
1440 | ||
1441 | /* Reset all signal handlers. */ | |
86f210e9 MP |
1442 | (void) reset_all_signal_handlers(); |
1443 | (void) ignore_signals(SIGNALS_IGNORE, -1); | |
663996b3 | 1444 | |
f47781d8 MP |
1445 | if (parse_config_file() < 0) { |
1446 | error_message = "Failed to parse config file"; | |
663996b3 | 1447 | goto finish; |
f47781d8 | 1448 | } |
663996b3 | 1449 | |
e3bff60a | 1450 | if (arg_running_as == MANAGER_SYSTEM) { |
f47781d8 MP |
1451 | r = parse_proc_cmdline(parse_proc_cmdline_item); |
1452 | if (r < 0) | |
1453 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); | |
1454 | } | |
663996b3 | 1455 | |
5eef597e MP |
1456 | /* Note that this also parses bits from the kernel command |
1457 | * line, including "debug". */ | |
663996b3 MS |
1458 | log_parse_environment(); |
1459 | ||
f47781d8 MP |
1460 | if (parse_argv(argc, argv) < 0) { |
1461 | error_message = "Failed to parse commandline arguments"; | |
663996b3 | 1462 | goto finish; |
f47781d8 | 1463 | } |
663996b3 MS |
1464 | |
1465 | if (arg_action == ACTION_TEST && | |
1466 | geteuid() == 0) { | |
1467 | log_error("Don't run test mode as root."); | |
1468 | goto finish; | |
1469 | } | |
1470 | ||
e3bff60a | 1471 | if (arg_running_as == MANAGER_USER && |
663996b3 MS |
1472 | arg_action == ACTION_RUN && |
1473 | sd_booted() <= 0) { | |
1474 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1475 | goto finish; | |
1476 | } | |
1477 | ||
e3bff60a | 1478 | if (arg_running_as == MANAGER_SYSTEM && |
663996b3 MS |
1479 | arg_action == ACTION_RUN && |
1480 | running_in_chroot() > 0) { | |
1481 | log_error("Cannot be run in a chroot() environment."); | |
1482 | goto finish; | |
1483 | } | |
1484 | ||
5eef597e MP |
1485 | if (arg_action == ACTION_TEST) |
1486 | skip_setup = true; | |
1487 | ||
1488 | pager_open_if_enabled(); | |
1489 | ||
663996b3 MS |
1490 | if (arg_action == ACTION_HELP) { |
1491 | retval = help(); | |
1492 | goto finish; | |
1493 | } else if (arg_action == ACTION_VERSION) { | |
1494 | retval = version(); | |
1495 | goto finish; | |
1496 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { | |
1497 | unit_dump_config_items(stdout); | |
1498 | retval = EXIT_SUCCESS; | |
1499 | goto finish; | |
1500 | } else if (arg_action == ACTION_DONE) { | |
1501 | retval = EXIT_SUCCESS; | |
1502 | goto finish; | |
1503 | } | |
1504 | ||
e3bff60a | 1505 | if (arg_running_as == MANAGER_USER && |
60f067b4 JS |
1506 | !getenv("XDG_RUNTIME_DIR")) { |
1507 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1508 | goto finish; | |
1509 | } | |
1510 | ||
663996b3 MS |
1511 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
1512 | ||
1513 | /* Close logging fds, in order not to confuse fdset below */ | |
1514 | log_close(); | |
1515 | ||
1516 | /* Remember open file descriptors for later deserialization */ | |
1517 | r = fdset_new_fill(&fds); | |
1518 | if (r < 0) { | |
f47781d8 MP |
1519 | log_emergency_errno(r, "Failed to allocate fd set: %m"); |
1520 | error_message = "Failed to allocate fd set"; | |
663996b3 MS |
1521 | goto finish; |
1522 | } else | |
1523 | fdset_cloexec(fds, true); | |
1524 | ||
60f067b4 JS |
1525 | if (arg_serialization) |
1526 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
663996b3 | 1527 | |
e3bff60a | 1528 | if (arg_running_as == MANAGER_SYSTEM) |
663996b3 MS |
1529 | /* Become a session leader if we aren't one yet. */ |
1530 | setsid(); | |
1531 | ||
14228c0d | 1532 | /* Move out of the way, so that we won't block unmounts */ |
86f210e9 | 1533 | assert_se(chdir("/") == 0); |
663996b3 | 1534 | |
663996b3 MS |
1535 | /* Reset the console, but only if this is really init and we |
1536 | * are freshly booted */ | |
e3bff60a | 1537 | if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { |
5eef597e MP |
1538 | |
1539 | /* If we are init, we connect stdin/stdout/stderr to | |
1540 | * /dev/null and make sure we don't have a controlling | |
1541 | * tty. */ | |
1542 | release_terminal(); | |
1543 | ||
1544 | if (getpid() == 1 && !skip_setup) | |
1545 | console_setup(); | |
1546 | } | |
663996b3 MS |
1547 | |
1548 | /* Open the logging devices, if possible and necessary */ | |
1549 | log_open(); | |
1550 | ||
60f067b4 JS |
1551 | if (arg_show_status == _SHOW_STATUS_UNSET) |
1552 | arg_show_status = SHOW_STATUS_YES; | |
1553 | ||
663996b3 MS |
1554 | /* Make sure we leave a core dump without panicing the |
1555 | * kernel. */ | |
1556 | if (getpid() == 1) { | |
1557 | install_crash_handler(); | |
1558 | ||
1559 | r = mount_cgroup_controllers(arg_join_controllers); | |
1560 | if (r < 0) | |
1561 | goto finish; | |
1562 | } | |
1563 | ||
e3bff60a | 1564 | if (arg_running_as == MANAGER_SYSTEM) { |
6300502b | 1565 | int v; |
663996b3 | 1566 | |
5eef597e MP |
1567 | log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", |
1568 | arg_action == ACTION_TEST ? "test " : "" ); | |
663996b3 | 1569 | |
6300502b MP |
1570 | v = detect_virtualization(); |
1571 | if (v > 0) | |
1572 | log_info("Detected virtualization %s.", virtualization_to_string(v)); | |
663996b3 | 1573 | |
60f067b4 JS |
1574 | write_container_id(); |
1575 | ||
e3bff60a | 1576 | log_info("Detected architecture %s.", architecture_to_string(uname_architecture())); |
60f067b4 | 1577 | |
663996b3 MS |
1578 | if (in_initrd()) |
1579 | log_info("Running in initial RAM disk."); | |
1580 | ||
5eef597e MP |
1581 | /* Let's check whether /etc is already populated. We |
1582 | * don't actually really check for that, but use | |
1583 | * /etc/machine-id as flag file. This allows container | |
1584 | * managers and installers to provision a couple of | |
1585 | * files already. If the container manager wants to | |
1586 | * provision the machine ID itself it should pass | |
e735f4d4 | 1587 | * $container_uuid to PID 1. */ |
5eef597e MP |
1588 | |
1589 | empty_etc = access("/etc/machine-id", F_OK) < 0; | |
e842803a MB |
1590 | if (empty_etc) |
1591 | log_info("Running with unpopulated /etc."); | |
60f067b4 | 1592 | } else { |
e842803a MB |
1593 | _cleanup_free_ char *t; |
1594 | ||
1595 | t = uid_to_name(getuid()); | |
5eef597e MP |
1596 | log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", |
1597 | arg_action == ACTION_TEST ? " test" : "", getuid(), t); | |
60f067b4 | 1598 | } |
663996b3 | 1599 | |
e3bff60a MP |
1600 | if (arg_running_as == MANAGER_SYSTEM && !skip_setup) { |
1601 | if (arg_show_status > 0) | |
663996b3 MS |
1602 | status_welcome(); |
1603 | ||
663996b3 | 1604 | hostname_setup(); |
e842803a | 1605 | machine_id_setup(NULL); |
663996b3 MS |
1606 | loopback_setup(); |
1607 | ||
1608 | test_mtab(); | |
1609 | test_usr(); | |
663996b3 MS |
1610 | } |
1611 | ||
e3bff60a | 1612 | if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0) |
663996b3 MS |
1613 | watchdog_set_timeout(&arg_runtime_watchdog); |
1614 | ||
5eef597e | 1615 | if (arg_timer_slack_nsec != NSEC_INFINITY) |
663996b3 | 1616 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) |
f47781d8 | 1617 | log_error_errno(errno, "Failed to adjust timer slack: %m"); |
663996b3 MS |
1618 | |
1619 | if (arg_capability_bounding_set_drop) { | |
14228c0d | 1620 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
663996b3 | 1621 | if (r < 0) { |
f47781d8 MP |
1622 | log_emergency_errno(r, "Failed to drop capability bounding set of usermode helpers: %m"); |
1623 | error_message = "Failed to drop capability bounding set of usermode helpers"; | |
663996b3 MS |
1624 | goto finish; |
1625 | } | |
14228c0d | 1626 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); |
663996b3 | 1627 | if (r < 0) { |
f47781d8 MP |
1628 | log_emergency_errno(r, "Failed to drop capability bounding set: %m"); |
1629 | error_message = "Failed to drop capability bounding set"; | |
663996b3 MS |
1630 | goto finish; |
1631 | } | |
1632 | } | |
1633 | ||
60f067b4 JS |
1634 | if (arg_syscall_archs) { |
1635 | r = enforce_syscall_archs(arg_syscall_archs); | |
f47781d8 MP |
1636 | if (r < 0) { |
1637 | error_message = "Failed to set syscall architectures"; | |
60f067b4 | 1638 | goto finish; |
f47781d8 | 1639 | } |
60f067b4 JS |
1640 | } |
1641 | ||
86f210e9 | 1642 | if (arg_running_as == MANAGER_USER) |
663996b3 | 1643 | /* Become reaper of our children */ |
86f210e9 | 1644 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) |
f47781d8 | 1645 | log_warning_errno(errno, "Failed to make us a subreaper: %m"); |
663996b3 | 1646 | |
e3bff60a | 1647 | if (arg_running_as == MANAGER_SYSTEM) { |
663996b3 MS |
1648 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1649 | ||
e842803a | 1650 | if (empty_etc) { |
e3bff60a | 1651 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, false, NULL, 0); |
e842803a | 1652 | if (r < 0) |
f47781d8 | 1653 | log_warning_errno(r, "Failed to populate /etc with preset unit settings, ignoring: %m"); |
e842803a MB |
1654 | else |
1655 | log_info("Populated /etc with preset unit settings."); | |
1656 | } | |
1657 | } | |
1658 | ||
5eef597e | 1659 | r = manager_new(arg_running_as, arg_action == ACTION_TEST, &m); |
663996b3 | 1660 | if (r < 0) { |
f47781d8 MP |
1661 | log_emergency_errno(r, "Failed to allocate manager object: %m"); |
1662 | error_message = "Failed to allocate manager object"; | |
663996b3 MS |
1663 | goto finish; |
1664 | } | |
1665 | ||
1666 | m->confirm_spawn = arg_confirm_spawn; | |
663996b3 MS |
1667 | m->runtime_watchdog = arg_runtime_watchdog; |
1668 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
1669 | m->userspace_timestamp = userspace_timestamp; | |
1670 | m->kernel_timestamp = kernel_timestamp; | |
663996b3 | 1671 | m->initrd_timestamp = initrd_timestamp; |
60f067b4 JS |
1672 | m->security_start_timestamp = security_start_timestamp; |
1673 | m->security_finish_timestamp = security_finish_timestamp; | |
663996b3 | 1674 | |
7035cd9e | 1675 | manager_set_defaults(m); |
663996b3 | 1676 | manager_set_show_status(m, arg_show_status); |
5eef597e | 1677 | manager_set_first_boot(m, empty_etc); |
663996b3 MS |
1678 | |
1679 | /* Remember whether we should queue the default job */ | |
60f067b4 | 1680 | queue_default_job = !arg_serialization || arg_switched_root; |
663996b3 MS |
1681 | |
1682 | before_startup = now(CLOCK_MONOTONIC); | |
1683 | ||
60f067b4 | 1684 | r = manager_startup(m, arg_serialization, fds); |
663996b3 | 1685 | if (r < 0) |
f47781d8 | 1686 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
663996b3 MS |
1687 | |
1688 | /* This will close all file descriptors that were opened, but | |
1689 | * not claimed by any unit. */ | |
6300502b | 1690 | fds = fdset_free(fds); |
663996b3 | 1691 | |
6300502b | 1692 | arg_serialization = safe_fclose(arg_serialization); |
663996b3 MS |
1693 | |
1694 | if (queue_default_job) { | |
60f067b4 | 1695 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
663996b3 MS |
1696 | Unit *target = NULL; |
1697 | Job *default_unit_job; | |
1698 | ||
663996b3 MS |
1699 | log_debug("Activating default unit: %s", arg_default_unit); |
1700 | ||
1701 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); | |
60f067b4 JS |
1702 | if (r < 0) |
1703 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1704 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
f47781d8 | 1705 | log_error_errno(target->load_error, "Failed to load default target: %m"); |
663996b3 MS |
1706 | else if (target->load_state == UNIT_MASKED) |
1707 | log_error("Default target masked."); | |
1708 | ||
1709 | if (!target || target->load_state != UNIT_LOADED) { | |
1710 | log_info("Trying to load rescue target..."); | |
1711 | ||
1712 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); | |
1713 | if (r < 0) { | |
f47781d8 MP |
1714 | log_emergency("Failed to load rescue target: %s", bus_error_message(&error, r)); |
1715 | error_message = "Failed to load rescue target"; | |
663996b3 | 1716 | goto finish; |
14228c0d | 1717 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
f47781d8 MP |
1718 | log_emergency_errno(target->load_error, "Failed to load rescue target: %m"); |
1719 | error_message = "Failed to load rescue target"; | |
663996b3 MS |
1720 | goto finish; |
1721 | } else if (target->load_state == UNIT_MASKED) { | |
f47781d8 MP |
1722 | log_emergency("Rescue target masked."); |
1723 | error_message = "Rescue target masked"; | |
663996b3 MS |
1724 | goto finish; |
1725 | } | |
1726 | } | |
1727 | ||
1728 | assert(target->load_state == UNIT_LOADED); | |
1729 | ||
1730 | if (arg_action == ACTION_TEST) { | |
1731 | printf("-> By units:\n"); | |
1732 | manager_dump_units(m, stdout, "\t"); | |
1733 | } | |
1734 | ||
1735 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); | |
1736 | if (r == -EPERM) { | |
60f067b4 | 1737 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
663996b3 MS |
1738 | |
1739 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); | |
1740 | if (r < 0) { | |
f47781d8 MP |
1741 | log_emergency("Failed to start default target: %s", bus_error_message(&error, r)); |
1742 | error_message = "Failed to start default target"; | |
663996b3 MS |
1743 | goto finish; |
1744 | } | |
1745 | } else if (r < 0) { | |
f47781d8 MP |
1746 | log_emergency("Failed to isolate default target: %s", bus_error_message(&error, r)); |
1747 | error_message = "Failed to isolate default target"; | |
663996b3 MS |
1748 | goto finish; |
1749 | } | |
1750 | ||
1751 | m->default_unit_job_id = default_unit_job->id; | |
1752 | ||
1753 | after_startup = now(CLOCK_MONOTONIC); | |
1754 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1755 | "Loaded units and determined initial transaction in %s.", | |
5eef597e | 1756 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 100 * USEC_PER_MSEC)); |
663996b3 MS |
1757 | |
1758 | if (arg_action == ACTION_TEST) { | |
1759 | printf("-> By jobs:\n"); | |
1760 | manager_dump_jobs(m, stdout, "\t"); | |
1761 | retval = EXIT_SUCCESS; | |
1762 | goto finish; | |
1763 | } | |
1764 | } | |
1765 | ||
1766 | for (;;) { | |
1767 | r = manager_loop(m); | |
1768 | if (r < 0) { | |
f47781d8 MP |
1769 | log_emergency_errno(r, "Failed to run main loop: %m"); |
1770 | error_message = "Failed to run main loop"; | |
663996b3 MS |
1771 | goto finish; |
1772 | } | |
1773 | ||
1774 | switch (m->exit_code) { | |
1775 | ||
663996b3 MS |
1776 | case MANAGER_RELOAD: |
1777 | log_info("Reloading."); | |
7035cd9e MP |
1778 | |
1779 | r = parse_config_file(); | |
1780 | if (r < 0) | |
1781 | log_error("Failed to parse config file."); | |
1782 | ||
1783 | manager_set_defaults(m); | |
1784 | ||
663996b3 MS |
1785 | r = manager_reload(m); |
1786 | if (r < 0) | |
f47781d8 | 1787 | log_error_errno(r, "Failed to reload: %m"); |
663996b3 MS |
1788 | break; |
1789 | ||
1790 | case MANAGER_REEXECUTE: | |
1791 | ||
f47781d8 | 1792 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) { |
13d276d0 | 1793 | error_message = "Failed to prepare for reexecution"; |
663996b3 | 1794 | goto finish; |
f47781d8 | 1795 | } |
663996b3 MS |
1796 | |
1797 | reexecute = true; | |
1798 | log_notice("Reexecuting."); | |
1799 | goto finish; | |
1800 | ||
1801 | case MANAGER_SWITCH_ROOT: | |
1802 | /* Steal the switch root parameters */ | |
1803 | switch_root_dir = m->switch_root; | |
1804 | switch_root_init = m->switch_root_init; | |
1805 | m->switch_root = m->switch_root_init = NULL; | |
1806 | ||
1807 | if (!switch_root_init) | |
f47781d8 | 1808 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) { |
13d276d0 | 1809 | error_message = "Failed to prepare for reexecution"; |
663996b3 | 1810 | goto finish; |
f47781d8 | 1811 | } |
663996b3 MS |
1812 | |
1813 | reexecute = true; | |
1814 | log_notice("Switching root."); | |
1815 | goto finish; | |
1816 | ||
6300502b MP |
1817 | case MANAGER_EXIT: |
1818 | retval = m->return_value; | |
1819 | ||
1820 | if (m->running_as == MANAGER_USER) { | |
1821 | log_debug("Exit."); | |
1822 | goto finish; | |
1823 | } | |
1824 | ||
1825 | /* fallthrough */ | |
663996b3 MS |
1826 | case MANAGER_REBOOT: |
1827 | case MANAGER_POWEROFF: | |
1828 | case MANAGER_HALT: | |
1829 | case MANAGER_KEXEC: { | |
1830 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
6300502b | 1831 | [MANAGER_EXIT] = "exit", |
663996b3 MS |
1832 | [MANAGER_REBOOT] = "reboot", |
1833 | [MANAGER_POWEROFF] = "poweroff", | |
1834 | [MANAGER_HALT] = "halt", | |
1835 | [MANAGER_KEXEC] = "kexec" | |
1836 | }; | |
1837 | ||
1838 | assert_se(shutdown_verb = table[m->exit_code]); | |
1839 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; | |
1840 | ||
1841 | log_notice("Shutting down."); | |
1842 | goto finish; | |
1843 | } | |
1844 | ||
1845 | default: | |
1846 | assert_not_reached("Unknown exit code."); | |
1847 | } | |
1848 | } | |
1849 | ||
1850 | finish: | |
5eef597e MP |
1851 | pager_close(); |
1852 | ||
e735f4d4 MP |
1853 | if (m) |
1854 | arg_shutdown_watchdog = m->shutdown_watchdog; | |
6300502b | 1855 | |
f47781d8 | 1856 | m = manager_free(m); |
663996b3 | 1857 | |
6300502b MP |
1858 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) |
1859 | arg_default_rlimit[j] = mfree(arg_default_rlimit[j]); | |
663996b3 | 1860 | |
13d276d0 | 1861 | arg_default_unit = mfree(arg_default_unit); |
6300502b | 1862 | arg_join_controllers = strv_free_free(arg_join_controllers); |
13d276d0 | 1863 | arg_default_environment = strv_free(arg_default_environment); |
6300502b | 1864 | arg_syscall_archs = set_free(arg_syscall_archs); |
60f067b4 | 1865 | |
5eef597e | 1866 | mac_selinux_finish(); |
663996b3 MS |
1867 | |
1868 | if (reexecute) { | |
1869 | const char **args; | |
1870 | unsigned i, args_size; | |
1871 | ||
1872 | /* Close and disarm the watchdog, so that the new | |
1873 | * instance can reinitialize it, but doesn't get | |
1874 | * rebooted while we do that */ | |
1875 | watchdog_close(true); | |
1876 | ||
1877 | /* Reset the RLIMIT_NOFILE to the kernel default, so | |
1878 | * that the new systemd can pass the kernel default to | |
1879 | * its child processes */ | |
1880 | if (saved_rlimit_nofile.rlim_cur > 0) | |
6300502b | 1881 | (void) setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); |
663996b3 MS |
1882 | |
1883 | if (switch_root_dir) { | |
1884 | /* Kill all remaining processes from the | |
1885 | * initrd, but don't wait for them, so that we | |
1886 | * can handle the SIGCHLD for them after | |
1887 | * deserializing. */ | |
60f067b4 | 1888 | broadcast_signal(SIGTERM, false, true); |
663996b3 | 1889 | |
5eef597e MP |
1890 | /* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */ |
1891 | r = switch_root(switch_root_dir, "/mnt", true, MS_MOVE); | |
663996b3 | 1892 | if (r < 0) |
f47781d8 | 1893 | log_error_errno(r, "Failed to switch root, trying to continue: %m"); |
663996b3 MS |
1894 | } |
1895 | ||
1896 | args_size = MAX(6, argc+1); | |
1897 | args = newa(const char*, args_size); | |
1898 | ||
1899 | if (!switch_root_init) { | |
e735f4d4 | 1900 | char sfd[DECIMAL_STR_MAX(int) + 1]; |
663996b3 MS |
1901 | |
1902 | /* First try to spawn ourselves with the right | |
1903 | * path, and with full serialization. We do | |
1904 | * this only if the user didn't specify an | |
1905 | * explicit init to spawn. */ | |
1906 | ||
60f067b4 | 1907 | assert(arg_serialization); |
663996b3 MS |
1908 | assert(fds); |
1909 | ||
e735f4d4 | 1910 | xsprintf(sfd, "%i", fileno(arg_serialization)); |
663996b3 MS |
1911 | |
1912 | i = 0; | |
1913 | args[i++] = SYSTEMD_BINARY_PATH; | |
1914 | if (switch_root_dir) | |
1915 | args[i++] = "--switched-root"; | |
e3bff60a | 1916 | args[i++] = arg_running_as == MANAGER_SYSTEM ? "--system" : "--user"; |
663996b3 MS |
1917 | args[i++] = "--deserialize"; |
1918 | args[i++] = sfd; | |
1919 | args[i++] = NULL; | |
1920 | ||
14228c0d MB |
1921 | /* do not pass along the environment we inherit from the kernel or initrd */ |
1922 | if (switch_root_dir) | |
6300502b | 1923 | (void) clearenv(); |
14228c0d | 1924 | |
663996b3 | 1925 | assert(i <= args_size); |
6300502b | 1926 | (void) execv(args[0], (char* const*) args); |
663996b3 MS |
1927 | } |
1928 | ||
1929 | /* Try the fallback, if there is any, without any | |
1930 | * serialization. We pass the original argv[] and | |
1931 | * envp[]. (Well, modulo the ordering changes due to | |
1932 | * getopt() in argv[], and some cleanups in envp[], | |
1933 | * but let's hope that doesn't matter.) */ | |
1934 | ||
6300502b MP |
1935 | arg_serialization = safe_fclose(arg_serialization); |
1936 | fds = fdset_free(fds); | |
663996b3 MS |
1937 | |
1938 | /* Reopen the console */ | |
6300502b | 1939 | (void) make_console_stdio(); |
663996b3 | 1940 | |
60f067b4 | 1941 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
663996b3 MS |
1942 | args[i++] = argv[j]; |
1943 | args[i++] = NULL; | |
1944 | assert(i <= args_size); | |
1945 | ||
5eef597e | 1946 | /* Reenable any blocked signals, especially important |
e842803a | 1947 | * if we switch from initial ramdisk to init=... */ |
86f210e9 MP |
1948 | (void) reset_all_signal_handlers(); |
1949 | (void) reset_signal_mask(); | |
e842803a | 1950 | |
663996b3 MS |
1951 | if (switch_root_init) { |
1952 | args[0] = switch_root_init; | |
6300502b | 1953 | (void) execv(args[0], (char* const*) args); |
f47781d8 | 1954 | log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m"); |
663996b3 MS |
1955 | } |
1956 | ||
1957 | args[0] = "/sbin/init"; | |
6300502b | 1958 | (void) execv(args[0], (char* const*) args); |
663996b3 MS |
1959 | |
1960 | if (errno == ENOENT) { | |
1961 | log_warning("No /sbin/init, trying fallback"); | |
1962 | ||
1963 | args[0] = "/bin/sh"; | |
1964 | args[1] = NULL; | |
6300502b | 1965 | (void) execv(args[0], (char* const*) args); |
f47781d8 | 1966 | log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m"); |
663996b3 | 1967 | } else |
f47781d8 | 1968 | log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m"); |
663996b3 MS |
1969 | } |
1970 | ||
6300502b MP |
1971 | arg_serialization = safe_fclose(arg_serialization); |
1972 | fds = fdset_free(fds); | |
60f067b4 JS |
1973 | |
1974 | #ifdef HAVE_VALGRIND_VALGRIND_H | |
1975 | /* If we are PID 1 and running under valgrind, then let's exit | |
1976 | * here explicitly. valgrind will only generate nice output on | |
1977 | * exit(), not on exec(), hence let's do the former not the | |
1978 | * latter here. */ | |
1979 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
1980 | return 0; | |
1981 | #endif | |
663996b3 MS |
1982 | |
1983 | if (shutdown_verb) { | |
60f067b4 | 1984 | char log_level[DECIMAL_STR_MAX(int) + 1]; |
6300502b MP |
1985 | char exit_code[DECIMAL_STR_MAX(uint8_t) + 1]; |
1986 | const char* command_line[11] = { | |
663996b3 MS |
1987 | SYSTEMD_SHUTDOWN_BINARY_PATH, |
1988 | shutdown_verb, | |
60f067b4 JS |
1989 | "--log-level", log_level, |
1990 | "--log-target", | |
1991 | }; | |
1992 | unsigned pos = 5; | |
1993 | _cleanup_strv_free_ char **env_block = NULL; | |
1994 | ||
1995 | assert(command_line[pos] == NULL); | |
1996 | env_block = strv_copy(environ); | |
1997 | ||
e735f4d4 | 1998 | xsprintf(log_level, "%d", log_get_max_level()); |
60f067b4 JS |
1999 | |
2000 | switch (log_get_target()) { | |
6300502b | 2001 | |
60f067b4 JS |
2002 | case LOG_TARGET_KMSG: |
2003 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
2004 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
2005 | command_line[pos++] = "kmsg"; | |
2006 | break; | |
2007 | ||
fb183854 MP |
2008 | case LOG_TARGET_NULL: |
2009 | command_line[pos++] = "null"; | |
2010 | break; | |
2011 | ||
60f067b4 JS |
2012 | case LOG_TARGET_CONSOLE: |
2013 | default: | |
2014 | command_line[pos++] = "console"; | |
2015 | break; | |
663996b3 | 2016 | }; |
60f067b4 JS |
2017 | |
2018 | if (log_get_show_color()) | |
2019 | command_line[pos++] = "--log-color"; | |
2020 | ||
2021 | if (log_get_show_location()) | |
2022 | command_line[pos++] = "--log-location"; | |
2023 | ||
6300502b MP |
2024 | if (streq(shutdown_verb, "exit")) { |
2025 | command_line[pos++] = "--exit-code"; | |
2026 | command_line[pos++] = exit_code; | |
2027 | xsprintf(exit_code, "%d", retval); | |
2028 | } | |
2029 | ||
60f067b4 | 2030 | assert(pos < ELEMENTSOF(command_line)); |
663996b3 MS |
2031 | |
2032 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { | |
60f067b4 | 2033 | char *e; |
663996b3 MS |
2034 | |
2035 | /* If we reboot let's set the shutdown | |
2036 | * watchdog and tell the shutdown binary to | |
2037 | * repeatedly ping it */ | |
e735f4d4 MP |
2038 | r = watchdog_set_timeout(&arg_shutdown_watchdog); |
2039 | watchdog_close(r < 0); | |
663996b3 | 2040 | |
60f067b4 JS |
2041 | /* Tell the binary how often to ping, ignore failure */ |
2042 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
6300502b | 2043 | (void) strv_push(&env_block, e); |
60f067b4 | 2044 | } else |
663996b3 | 2045 | watchdog_close(true); |
663996b3 | 2046 | |
14228c0d MB |
2047 | /* Avoid the creation of new processes forked by the |
2048 | * kernel; at this point, we will not listen to the | |
2049 | * signals anyway */ | |
6300502b | 2050 | if (detect_container() <= 0) |
d9dfd233 | 2051 | (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); |
14228c0d | 2052 | |
663996b3 | 2053 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
f47781d8 | 2054 | log_error_errno(errno, "Failed to execute shutdown binary, %s: %m", |
60f067b4 | 2055 | getpid() == 1 ? "freezing" : "quitting"); |
663996b3 MS |
2056 | } |
2057 | ||
f47781d8 MP |
2058 | if (getpid() == 1) { |
2059 | if (error_message) | |
2060 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
6300502b | 2061 | ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL, |
f47781d8 | 2062 | "%s, freezing.", error_message); |
6300502b | 2063 | freeze_or_reboot(); |
f47781d8 | 2064 | } |
663996b3 MS |
2065 | |
2066 | return retval; | |
2067 | } |