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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 | |
b64a3d86 LP |
38 | #ifdef HAVE_SECCOMP |
39 | #include <seccomp.h> | |
40 | #endif | |
54b434b1 | 41 | |
718db961 LP |
42 | #include "sd-daemon.h" |
43 | #include "sd-messages.h" | |
44 | #include "sd-bus.h" | |
60918275 | 45 | #include "manager.h" |
16354eff | 46 | #include "log.h" |
302e8c4c | 47 | #include "load-fragment.h" |
a16e1123 | 48 | #include "fdset.h" |
514f4ef5 | 49 | #include "special.h" |
487393e9 | 50 | #include "conf-parser.h" |
ad780f19 | 51 | #include "missing.h" |
e51bc1a2 | 52 | #include "label.h" |
b87c2aa6 | 53 | #include "pager.h" |
302e27c8 | 54 | #include "build.h" |
06d4c99a | 55 | #include "strv.h" |
f6a6225e | 56 | #include "def.h" |
b52aae1d | 57 | #include "virt.h" |
d9d93745 | 58 | #include "architecture.h" |
e96d6be7 | 59 | #include "watchdog.h" |
664f88a7 | 60 | #include "path-util.h" |
41669317 | 61 | #include "switch-root.h" |
ec8927ca | 62 | #include "capability.h" |
bd3fa1d2 | 63 | #include "killall.h" |
0c4025d1 | 64 | #include "env-util.h" |
24efb112 | 65 | #include "clock-util.h" |
718db961 LP |
66 | #include "fileio.h" |
67 | #include "dbus-manager.h" | |
68 | #include "bus-error.h" | |
69 | #include "bus-util.h" | |
60918275 | 70 | |
b6e66135 LP |
71 | #include "mount-setup.h" |
72 | #include "loopback-setup.h" | |
b6e66135 LP |
73 | #include "hostname-setup.h" |
74 | #include "machine-id-setup.h" | |
b6e66135 LP |
75 | #include "selinux-setup.h" |
76 | #include "ima-setup.h" | |
ffbd2c4d | 77 | #include "smack-setup.h" |
718db961 | 78 | #include "kmod-setup.h" |
b6e66135 | 79 | |
f170852a LP |
80 | static enum { |
81 | ACTION_RUN, | |
e965d56d | 82 | ACTION_HELP, |
9ba0bc4e | 83 | ACTION_VERSION, |
e537352b | 84 | ACTION_TEST, |
4288f619 LP |
85 | ACTION_DUMP_CONFIGURATION_ITEMS, |
86 | ACTION_DONE | |
fa0f4d8a | 87 | } arg_action = ACTION_RUN; |
fa0f4d8a | 88 | static char *arg_default_unit = NULL; |
67445f4e | 89 | static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; |
fa0f4d8a LP |
90 | static bool arg_dump_core = true; |
91 | static bool arg_crash_shell = false; | |
92 | static int arg_crash_chvt = -1; | |
93 | static bool arg_confirm_spawn = false; | |
b6e2f329 | 94 | static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; |
bf4df7c3 | 95 | static bool arg_switched_root = false; |
b87c2aa6 | 96 | static int arg_no_pager = -1; |
0c85a4f3 | 97 | static char ***arg_join_controllers = NULL; |
706343f4 | 98 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 99 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
1f19a534 OS |
100 | static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; |
101 | static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; | |
102 | static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
3f41e1e5 LN |
103 | static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; |
104 | static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; | |
e96d6be7 LP |
105 | static usec_t arg_runtime_watchdog = 0; |
106 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
97d0e5f8 | 107 | static char **arg_default_environment = NULL; |
517d56b1 | 108 | static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; |
ec8927ca | 109 | static uint64_t arg_capability_bounding_set_drop = 0; |
3a43da28 | 110 | static nsec_t arg_timer_slack_nsec = NSEC_INFINITY; |
bd8f585b | 111 | static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; |
d3b1c508 LP |
112 | static Set* arg_syscall_archs = NULL; |
113 | static FILE* arg_serialization = NULL; | |
085afe36 LP |
114 | static bool arg_default_cpu_accounting = false; |
115 | static bool arg_default_blockio_accounting = false; | |
116 | static bool arg_default_memory_accounting = false; | |
4fc935ca | 117 | |
d3b1c508 | 118 | static void nop_handler(int sig) {} |
6f5e3f35 | 119 | |
b87c2aa6 ZJS |
120 | static void pager_open_if_enabled(void) { |
121 | ||
122 | if (arg_no_pager <= 0) | |
123 | return; | |
124 | ||
125 | pager_open(false); | |
126 | } | |
127 | ||
919ce0b7 | 128 | noreturn static void crash(int sig) { |
97c4f35c | 129 | |
abb26902 LP |
130 | if (getpid() != 1) |
131 | /* Pass this on immediately, if this is not PID 1 */ | |
132 | raise(sig); | |
133 | else if (!arg_dump_core) | |
4104970e | 134 | log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 135 | else { |
b92bea5d ZJS |
136 | struct sigaction sa = { |
137 | .sa_handler = nop_handler, | |
138 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
139 | }; | |
97c4f35c LP |
140 | pid_t pid; |
141 | ||
6f5e3f35 | 142 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
abb26902 | 143 | sigaction(SIGCHLD, &sa, NULL); |
6f5e3f35 | 144 | |
e62d8c39 ZJS |
145 | pid = fork(); |
146 | if (pid < 0) | |
56f64d95 | 147 | log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
97c4f35c LP |
148 | |
149 | else if (pid == 0) { | |
b92bea5d | 150 | struct rlimit rl = {}; |
97c4f35c LP |
151 | |
152 | /* Enable default signal handler for core dump */ | |
153 | zero(sa); | |
154 | sa.sa_handler = SIG_DFL; | |
abb26902 | 155 | sigaction(sig, &sa, NULL); |
97c4f35c LP |
156 | |
157 | /* Don't limit the core dump size */ | |
97c4f35c LP |
158 | rl.rlim_cur = RLIM_INFINITY; |
159 | rl.rlim_max = RLIM_INFINITY; | |
160 | setrlimit(RLIMIT_CORE, &rl); | |
161 | ||
162 | /* Just to be sure... */ | |
abb26902 | 163 | chdir("/"); |
97c4f35c LP |
164 | |
165 | /* Raise the signal again */ | |
166 | raise(sig); | |
167 | ||
168 | assert_not_reached("We shouldn't be here..."); | |
169 | _exit(1); | |
4fc935ca LP |
170 | |
171 | } else { | |
8e12a6ae LP |
172 | siginfo_t status; |
173 | int r; | |
4fc935ca LP |
174 | |
175 | /* Order things nicely. */ | |
e62d8c39 ZJS |
176 | r = wait_for_terminate(pid, &status); |
177 | if (r < 0) | |
da927ba9 | 178 | log_emergency_errno(r, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig)); |
8e12a6ae | 179 | else if (status.si_code != CLD_DUMPED) |
4104970e | 180 | log_emergency("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 181 | else |
4104970e | 182 | log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
97c4f35c LP |
183 | } |
184 | } | |
185 | ||
fa0f4d8a LP |
186 | if (arg_crash_chvt) |
187 | chvt(arg_crash_chvt); | |
601f6a1e | 188 | |
fa0f4d8a | 189 | if (arg_crash_shell) { |
b92bea5d ZJS |
190 | struct sigaction sa = { |
191 | .sa_handler = SIG_IGN, | |
192 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
193 | }; | |
6f5e3f35 | 194 | pid_t pid; |
8c43883a | 195 | |
4fc935ca LP |
196 | log_info("Executing crash shell in 10s..."); |
197 | sleep(10); | |
198 | ||
6f5e3f35 | 199 | /* Let the kernel reap children for us */ |
6f5e3f35 | 200 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
8c43883a | 201 | |
cd3bd60a LP |
202 | pid = fork(); |
203 | if (pid < 0) | |
56f64d95 | 204 | log_emergency_errno(errno, "Failed to fork off crash shell: %m"); |
6f5e3f35 | 205 | else if (pid == 0) { |
cd3bd60a | 206 | make_console_stdio(); |
6f5e3f35 LP |
207 | execl("/bin/sh", "/bin/sh", NULL); |
208 | ||
56f64d95 | 209 | log_emergency_errno(errno, "execl() failed: %m"); |
6f5e3f35 LP |
210 | _exit(1); |
211 | } | |
c99b188e | 212 | |
ccd06097 | 213 | log_info("Successfully spawned crash shell as pid "PID_FMT".", pid); |
4fc935ca LP |
214 | } |
215 | ||
4104970e | 216 | log_emergency("Freezing execution."); |
97c4f35c LP |
217 | freeze(); |
218 | } | |
219 | ||
220 | static void install_crash_handler(void) { | |
b92bea5d ZJS |
221 | struct sigaction sa = { |
222 | .sa_handler = crash, | |
223 | .sa_flags = SA_NODEFER, | |
224 | }; | |
97c4f35c | 225 | |
1b91d3e8 | 226 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 227 | } |
f170852a | 228 | |
56d96fc0 LP |
229 | static int console_setup(void) { |
230 | _cleanup_close_ int tty_fd = -1; | |
231 | int r; | |
80876c20 | 232 | |
512947d4 | 233 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
23bbb0de MS |
234 | if (tty_fd < 0) |
235 | return log_error_errno(tty_fd, "Failed to open /dev/console: %m"); | |
80876c20 | 236 | |
56d96fc0 LP |
237 | /* We don't want to force text mode. plymouth may be showing |
238 | * pictures already from initrd. */ | |
512947d4 | 239 | r = reset_terminal_fd(tty_fd, false); |
23bbb0de MS |
240 | if (r < 0) |
241 | return log_error_errno(r, "Failed to reset /dev/console: %m"); | |
843d2643 | 242 | |
56d96fc0 | 243 | return 0; |
80876c20 LP |
244 | } |
245 | ||
f170852a LP |
246 | static int set_default_unit(const char *u) { |
247 | char *c; | |
248 | ||
249 | assert(u); | |
250 | ||
bf4df7c3 LP |
251 | c = strdup(u); |
252 | if (!c) | |
f170852a LP |
253 | return -ENOMEM; |
254 | ||
fa0f4d8a LP |
255 | free(arg_default_unit); |
256 | arg_default_unit = c; | |
bf4df7c3 | 257 | |
f170852a LP |
258 | return 0; |
259 | } | |
260 | ||
059cb385 | 261 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
f170852a LP |
262 | |
263 | static const char * const rlmap[] = { | |
ed370f5d | 264 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 265 | "-b", SPECIAL_EMERGENCY_TARGET, |
5329ab10 | 266 | "rescue", SPECIAL_RESCUE_TARGET, |
ed370f5d LP |
267 | "single", SPECIAL_RESCUE_TARGET, |
268 | "-s", SPECIAL_RESCUE_TARGET, | |
269 | "s", SPECIAL_RESCUE_TARGET, | |
270 | "S", SPECIAL_RESCUE_TARGET, | |
271 | "1", SPECIAL_RESCUE_TARGET, | |
272 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
273 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
274 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
275 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a | 276 | }; |
059cb385 | 277 | int r; |
f170852a | 278 | |
059cb385 | 279 | assert(key); |
5192bd19 | 280 | |
059cb385 | 281 | if (streq(key, "systemd.unit") && value) { |
bf4df7c3 LP |
282 | |
283 | if (!in_initrd()) | |
059cb385 | 284 | return set_default_unit(value); |
bf4df7c3 | 285 | |
059cb385 | 286 | } else if (streq(key, "rd.systemd.unit") && value) { |
bf4df7c3 | 287 | |
ca05941b LP |
288 | if (in_initrd()) |
289 | return set_default_unit(value); | |
f170852a | 290 | |
059cb385 | 291 | } else if (streq(key, "systemd.dump_core") && value) { |
4fc935ca | 292 | |
059cb385 | 293 | r = parse_boolean(value); |
fb472900 | 294 | if (r < 0) |
059cb385 | 295 | log_warning("Failed to parse dump core switch %s. Ignoring.", value); |
4fc935ca | 296 | else |
fa0f4d8a | 297 | arg_dump_core = r; |
4fc935ca | 298 | |
059cb385 | 299 | } else if (streq(key, "systemd.crash_shell") && value) { |
4fc935ca | 300 | |
059cb385 | 301 | r = parse_boolean(value); |
fb472900 | 302 | if (r < 0) |
059cb385 | 303 | log_warning("Failed to parse crash shell switch %s. Ignoring.", value); |
4fc935ca | 304 | else |
fa0f4d8a | 305 | arg_crash_shell = r; |
5e7ee61c | 306 | |
059cb385 | 307 | } else if (streq(key, "systemd.crash_chvt") && value) { |
5e7ee61c | 308 | |
059cb385 LP |
309 | if (safe_atoi(value, &r) < 0) |
310 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); | |
5e7ee61c | 311 | else |
059cb385 | 312 | arg_crash_chvt = r; |
5e7ee61c | 313 | |
059cb385 | 314 | } else if (streq(key, "systemd.confirm_spawn") && value) { |
601f6a1e | 315 | |
059cb385 LP |
316 | r = parse_boolean(value); |
317 | if (r < 0) | |
318 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); | |
601f6a1e | 319 | else |
059cb385 | 320 | arg_confirm_spawn = r; |
601f6a1e | 321 | |
059cb385 | 322 | } else if (streq(key, "systemd.show_status") && value) { |
9e58ff9c | 323 | |
059cb385 | 324 | r = parse_show_status(value, &arg_show_status); |
d450b6f2 | 325 | if (r < 0) |
059cb385 LP |
326 | log_warning("Failed to parse show status switch %s. Ignoring.", value); |
327 | ||
328 | } else if (streq(key, "systemd.default_standard_output") && value) { | |
0a494f1f | 329 | |
059cb385 | 330 | r = exec_output_from_string(value); |
fb472900 | 331 | if (r < 0) |
059cb385 | 332 | log_warning("Failed to parse default standard output switch %s. Ignoring.", value); |
0a494f1f LP |
333 | else |
334 | arg_default_std_output = r; | |
0a494f1f | 335 | |
059cb385 LP |
336 | } else if (streq(key, "systemd.default_standard_error") && value) { |
337 | ||
338 | r = exec_output_from_string(value); | |
fb472900 | 339 | if (r < 0) |
059cb385 | 340 | log_warning("Failed to parse default standard error switch %s. Ignoring.", value); |
0a494f1f LP |
341 | else |
342 | arg_default_std_error = r; | |
9e7c5357 | 343 | |
059cb385 LP |
344 | } else if (streq(key, "systemd.setenv") && value) { |
345 | ||
346 | if (env_assignment_is_valid(value)) { | |
e21fea24 KS |
347 | char **env; |
348 | ||
059cb385 | 349 | env = strv_env_set(arg_default_environment, value); |
e21fea24 KS |
350 | if (env) |
351 | arg_default_environment = env; | |
352 | else | |
279d3c9c | 353 | log_warning_errno(ENOMEM, "Setting environment variable '%s' failed, ignoring: %m", value); |
e21fea24 | 354 | } else |
059cb385 | 355 | log_warning("Environment variable name '%s' is not valid. Ignoring.", value); |
9e58ff9c | 356 | |
059cb385 | 357 | } else if (streq(key, "quiet") && !value) { |
d7b15e0a LP |
358 | |
359 | log_set_max_level(LOG_NOTICE); | |
360 | ||
b6e2f329 | 361 | if (arg_show_status == _SHOW_STATUS_UNSET) |
d450b6f2 | 362 | arg_show_status = SHOW_STATUS_AUTO; |
059cb385 LP |
363 | |
364 | } else if (streq(key, "debug") && !value) { | |
d7b15e0a | 365 | |
1de1c9c3 LP |
366 | /* Note that log_parse_environment() handles 'debug' |
367 | * too, and sets the log level to LOG_DEBUG. */ | |
d7b15e0a | 368 | |
b2103dcc KS |
369 | if (detect_container(NULL) > 0) |
370 | log_set_target(LOG_TARGET_CONSOLE); | |
059cb385 LP |
371 | |
372 | } else if (!in_initrd() && !value) { | |
f170852a LP |
373 | unsigned i; |
374 | ||
375 | /* SysV compatibility */ | |
f170852a | 376 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
059cb385 | 377 | if (streq(key, rlmap[i])) |
f170852a LP |
378 | return set_default_unit(rlmap[i+1]); |
379 | } | |
380 | ||
381 | return 0; | |
382 | } | |
383 | ||
e8e581bf ZJS |
384 | #define DEFINE_SETTER(name, func, descr) \ |
385 | static int name(const char *unit, \ | |
386 | const char *filename, \ | |
387 | unsigned line, \ | |
388 | const char *section, \ | |
71a61510 | 389 | unsigned section_line, \ |
e8e581bf ZJS |
390 | const char *lvalue, \ |
391 | int ltype, \ | |
392 | const char *rvalue, \ | |
393 | void *data, \ | |
394 | void *userdata) { \ | |
395 | \ | |
396 | int r; \ | |
397 | \ | |
398 | assert(filename); \ | |
399 | assert(lvalue); \ | |
400 | assert(rvalue); \ | |
401 | \ | |
402 | r = func(rvalue); \ | |
403 | if (r < 0) \ | |
404 | log_syntax(unit, LOG_ERR, filename, line, -r, \ | |
405 | "Invalid " descr "'%s': %s", \ | |
406 | rvalue, strerror(-r)); \ | |
407 | \ | |
408 | return 0; \ | |
409 | } | |
487393e9 | 410 | |
e8e581bf ZJS |
411 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") |
412 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
413 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
414 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
487393e9 | 415 | |
4d7213b2 LP |
416 | static int config_parse_cpu_affinity2( |
417 | const char *unit, | |
418 | const char *filename, | |
419 | unsigned line, | |
420 | const char *section, | |
421 | unsigned section_line, | |
422 | const char *lvalue, | |
423 | int ltype, | |
424 | const char *rvalue, | |
425 | void *data, | |
426 | void *userdata) { | |
487393e9 | 427 | |
a2a5291b | 428 | const char *word, *state; |
487393e9 | 429 | size_t l; |
487393e9 LP |
430 | cpu_set_t *c = NULL; |
431 | unsigned ncpus = 0; | |
432 | ||
433 | assert(filename); | |
434 | assert(lvalue); | |
435 | assert(rvalue); | |
436 | ||
a2a5291b | 437 | FOREACH_WORD_QUOTED(word, l, rvalue, state) { |
487393e9 LP |
438 | char *t; |
439 | int r; | |
440 | unsigned cpu; | |
441 | ||
a2a5291b | 442 | if (!(t = strndup(word, l))) |
14212119 | 443 | return log_oom(); |
487393e9 LP |
444 | |
445 | r = safe_atou(t, &cpu); | |
446 | free(t); | |
447 | ||
448 | if (!c) | |
449 | if (!(c = cpu_set_malloc(&ncpus))) | |
14212119 | 450 | return log_oom(); |
487393e9 LP |
451 | |
452 | if (r < 0 || cpu >= ncpus) { | |
e8e581bf ZJS |
453 | log_syntax(unit, LOG_ERR, filename, line, -r, |
454 | "Failed to parse CPU affinity '%s'", rvalue); | |
487393e9 LP |
455 | CPU_FREE(c); |
456 | return -EBADMSG; | |
457 | } | |
458 | ||
459 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
460 | } | |
b2fadec6 ZJS |
461 | if (!isempty(state)) |
462 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
463 | "Trailing garbage, ignoring."); | |
487393e9 LP |
464 | |
465 | if (c) { | |
466 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
79008bdd | 467 | log_unit_warning(unit, "Failed to set CPU affinity: %m"); |
487393e9 LP |
468 | |
469 | CPU_FREE(c); | |
470 | } | |
471 | ||
472 | return 0; | |
473 | } | |
474 | ||
4d7213b2 LP |
475 | static int config_parse_show_status( |
476 | const char* unit, | |
477 | const char *filename, | |
478 | unsigned line, | |
479 | const char *section, | |
480 | unsigned section_line, | |
481 | const char *lvalue, | |
482 | int ltype, | |
483 | const char *rvalue, | |
484 | void *data, | |
485 | void *userdata) { | |
486 | ||
487 | int k; | |
488 | ShowStatus *b = data; | |
489 | ||
490 | assert(filename); | |
491 | assert(lvalue); | |
492 | assert(rvalue); | |
493 | assert(data); | |
494 | ||
495 | k = parse_show_status(rvalue, b); | |
496 | if (k < 0) { | |
497 | log_syntax(unit, LOG_ERR, filename, line, -k, | |
498 | "Failed to parse show status setting, ignoring: %s", rvalue); | |
499 | return 0; | |
500 | } | |
501 | ||
502 | return 0; | |
503 | } | |
504 | ||
0c85a4f3 LP |
505 | static void strv_free_free(char ***l) { |
506 | char ***i; | |
507 | ||
508 | if (!l) | |
509 | return; | |
510 | ||
511 | for (i = l; *i; i++) | |
512 | strv_free(*i); | |
513 | ||
514 | free(l); | |
515 | } | |
516 | ||
517 | static void free_join_controllers(void) { | |
0c85a4f3 LP |
518 | strv_free_free(arg_join_controllers); |
519 | arg_join_controllers = NULL; | |
520 | } | |
521 | ||
e8e581bf ZJS |
522 | static int config_parse_join_controllers(const char *unit, |
523 | const char *filename, | |
524 | unsigned line, | |
525 | const char *section, | |
71a61510 | 526 | unsigned section_line, |
e8e581bf ZJS |
527 | const char *lvalue, |
528 | int ltype, | |
529 | const char *rvalue, | |
530 | void *data, | |
531 | void *userdata) { | |
0c85a4f3 LP |
532 | |
533 | unsigned n = 0; | |
a2a5291b | 534 | const char *word, *state; |
0c85a4f3 LP |
535 | size_t length; |
536 | ||
537 | assert(filename); | |
538 | assert(lvalue); | |
539 | assert(rvalue); | |
540 | ||
541 | free_join_controllers(); | |
542 | ||
a2a5291b | 543 | FOREACH_WORD_QUOTED(word, length, rvalue, state) { |
0c85a4f3 LP |
544 | char *s, **l; |
545 | ||
a2a5291b | 546 | s = strndup(word, length); |
0c85a4f3 | 547 | if (!s) |
14212119 | 548 | return log_oom(); |
0c85a4f3 LP |
549 | |
550 | l = strv_split(s, ","); | |
551 | free(s); | |
552 | ||
553 | strv_uniq(l); | |
554 | ||
555 | if (strv_length(l) <= 1) { | |
556 | strv_free(l); | |
557 | continue; | |
558 | } | |
559 | ||
560 | if (!arg_join_controllers) { | |
561 | arg_join_controllers = new(char**, 2); | |
562 | if (!arg_join_controllers) { | |
563 | strv_free(l); | |
14212119 | 564 | return log_oom(); |
0c85a4f3 LP |
565 | } |
566 | ||
567 | arg_join_controllers[0] = l; | |
568 | arg_join_controllers[1] = NULL; | |
569 | ||
570 | n = 1; | |
571 | } else { | |
572 | char ***a; | |
573 | char ***t; | |
574 | ||
575 | t = new0(char**, n+2); | |
576 | if (!t) { | |
577 | strv_free(l); | |
14212119 | 578 | return log_oom(); |
0c85a4f3 LP |
579 | } |
580 | ||
581 | n = 0; | |
582 | ||
583 | for (a = arg_join_controllers; *a; a++) { | |
584 | ||
585 | if (strv_overlap(*a, l)) { | |
e3e45d4f | 586 | if (strv_extend_strv(&l, *a) < 0) { |
0c85a4f3 LP |
587 | strv_free(l); |
588 | strv_free_free(t); | |
14212119 | 589 | return log_oom(); |
0c85a4f3 LP |
590 | } |
591 | ||
0c85a4f3 LP |
592 | } else { |
593 | char **c; | |
594 | ||
595 | c = strv_copy(*a); | |
596 | if (!c) { | |
597 | strv_free(l); | |
598 | strv_free_free(t); | |
14212119 | 599 | return log_oom(); |
0c85a4f3 LP |
600 | } |
601 | ||
602 | t[n++] = c; | |
603 | } | |
604 | } | |
605 | ||
606 | t[n++] = strv_uniq(l); | |
607 | ||
608 | strv_free_free(arg_join_controllers); | |
609 | arg_join_controllers = t; | |
610 | } | |
611 | } | |
b2fadec6 ZJS |
612 | if (!isempty(state)) |
613 | log_syntax(unit, LOG_ERR, filename, line, EINVAL, | |
614 | "Trailing garbage, ignoring."); | |
0c85a4f3 LP |
615 | |
616 | return 0; | |
617 | } | |
618 | ||
487393e9 LP |
619 | static int parse_config_file(void) { |
620 | ||
f975e971 | 621 | const ConfigTableItem items[] = { |
d3b1c508 LP |
622 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
623 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
624 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
625 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
626 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
627 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
628 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, | |
629 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, | |
630 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
631 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
632 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
633 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
634 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, | |
89fffa27 | 635 | #ifdef HAVE_SECCOMP |
d3b1c508 | 636 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
89fffa27 | 637 | #endif |
d3b1c508 | 638 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
bd8f585b | 639 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, |
d3b1c508 LP |
640 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, |
641 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
642 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
643 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
644 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
645 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, | |
646 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, | |
647 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
648 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, | |
649 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, | |
650 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, | |
651 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, | |
652 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, | |
653 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, | |
654 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, | |
655 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, | |
656 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, | |
657 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, | |
658 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, | |
659 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, | |
660 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, | |
661 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, | |
662 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, | |
663 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, | |
085afe36 LP |
664 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, |
665 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, | |
666 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, | |
d3b1c508 | 667 | {} |
487393e9 LP |
668 | }; |
669 | ||
1b907b5c | 670 | const char *fn, *conf_dirs_nulstr; |
487393e9 | 671 | |
19adb8a3 | 672 | fn = arg_running_as == SYSTEMD_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf"; |
1b907b5c JT |
673 | conf_dirs_nulstr = arg_running_as == SYSTEMD_SYSTEM ? CONF_DIRS_NULSTR("systemd/system.conf") : CONF_DIRS_NULSTR("systemd/user.conf"); |
674 | config_parse_many(fn, conf_dirs_nulstr, "Manager\0", | |
675 | config_item_table_lookup, items, false, NULL); | |
487393e9 | 676 | |
487393e9 LP |
677 | return 0; |
678 | } | |
679 | ||
f170852a LP |
680 | static int parse_argv(int argc, char *argv[]) { |
681 | ||
682 | enum { | |
683 | ARG_LOG_LEVEL = 0x100, | |
684 | ARG_LOG_TARGET, | |
bbe63281 LP |
685 | ARG_LOG_COLOR, |
686 | ARG_LOG_LOCATION, | |
2f198e2f | 687 | ARG_UNIT, |
edb9aaa8 | 688 | ARG_SYSTEM, |
af2d49f7 | 689 | ARG_USER, |
e537352b | 690 | ARG_TEST, |
b87c2aa6 | 691 | ARG_NO_PAGER, |
9ba0bc4e | 692 | ARG_VERSION, |
80876c20 | 693 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
694 | ARG_DUMP_CORE, |
695 | ARG_CRASH_SHELL, | |
a16e1123 | 696 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 697 | ARG_SHOW_STATUS, |
4288f619 | 698 | ARG_DESERIALIZE, |
2660882b | 699 | ARG_SWITCHED_ROOT, |
0a494f1f LP |
700 | ARG_DEFAULT_STD_OUTPUT, |
701 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
702 | }; |
703 | ||
704 | static const struct option options[] = { | |
a16e1123 LP |
705 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
706 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
707 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
708 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 709 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 710 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 711 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 | 712 | { "test", no_argument, NULL, ARG_TEST }, |
b87c2aa6 | 713 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
a16e1123 | 714 | { "help", no_argument, NULL, 'h' }, |
9ba0bc4e | 715 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 716 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 LP |
717 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
718 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
719 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 720 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 721 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 722 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
0a494f1f LP |
723 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
724 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
fb472900 | 725 | {} |
f170852a LP |
726 | }; |
727 | ||
728 | int c, r; | |
729 | ||
730 | assert(argc >= 1); | |
731 | assert(argv); | |
732 | ||
b770165a LP |
733 | if (getpid() == 1) |
734 | opterr = 0; | |
735 | ||
099663ff | 736 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
737 | |
738 | switch (c) { | |
739 | ||
740 | case ARG_LOG_LEVEL: | |
fb472900 ZJS |
741 | r = log_set_max_level_from_string(optarg); |
742 | if (r < 0) { | |
f170852a LP |
743 | log_error("Failed to parse log level %s.", optarg); |
744 | return r; | |
745 | } | |
746 | ||
747 | break; | |
748 | ||
749 | case ARG_LOG_TARGET: | |
fb472900 ZJS |
750 | r = log_set_target_from_string(optarg); |
751 | if (r < 0) { | |
f170852a LP |
752 | log_error("Failed to parse log target %s.", optarg); |
753 | return r; | |
754 | } | |
755 | ||
756 | break; | |
757 | ||
bbe63281 LP |
758 | case ARG_LOG_COLOR: |
759 | ||
d0b170c8 | 760 | if (optarg) { |
fb472900 ZJS |
761 | r = log_show_color_from_string(optarg); |
762 | if (r < 0) { | |
d0b170c8 LP |
763 | log_error("Failed to parse log color setting %s.", optarg); |
764 | return r; | |
765 | } | |
766 | } else | |
767 | log_show_color(true); | |
bbe63281 LP |
768 | |
769 | break; | |
770 | ||
771 | case ARG_LOG_LOCATION: | |
d0b170c8 | 772 | if (optarg) { |
fb472900 ZJS |
773 | r = log_show_location_from_string(optarg); |
774 | if (r < 0) { | |
d0b170c8 LP |
775 | log_error("Failed to parse log location setting %s.", optarg); |
776 | return r; | |
777 | } | |
778 | } else | |
779 | log_show_location(true); | |
bbe63281 LP |
780 | |
781 | break; | |
782 | ||
0a494f1f | 783 | case ARG_DEFAULT_STD_OUTPUT: |
fb472900 ZJS |
784 | r = exec_output_from_string(optarg); |
785 | if (r < 0) { | |
0a494f1f LP |
786 | log_error("Failed to parse default standard output setting %s.", optarg); |
787 | return r; | |
788 | } else | |
789 | arg_default_std_output = r; | |
790 | break; | |
791 | ||
792 | case ARG_DEFAULT_STD_ERROR: | |
fb472900 ZJS |
793 | r = exec_output_from_string(optarg); |
794 | if (r < 0) { | |
0a494f1f LP |
795 | log_error("Failed to parse default standard error output setting %s.", optarg); |
796 | return r; | |
797 | } else | |
798 | arg_default_std_error = r; | |
799 | break; | |
800 | ||
2f198e2f | 801 | case ARG_UNIT: |
f170852a | 802 | |
fb472900 | 803 | r = set_default_unit(optarg); |
23bbb0de MS |
804 | if (r < 0) |
805 | return log_error_errno(r, "Failed to set default unit %s: %m", optarg); | |
f170852a LP |
806 | |
807 | break; | |
808 | ||
edb9aaa8 | 809 | case ARG_SYSTEM: |
67445f4e | 810 | arg_running_as = SYSTEMD_SYSTEM; |
edb9aaa8 | 811 | break; |
a5dab5ce | 812 | |
af2d49f7 | 813 | case ARG_USER: |
67445f4e | 814 | arg_running_as = SYSTEMD_USER; |
a5dab5ce | 815 | break; |
a5dab5ce | 816 | |
e965d56d | 817 | case ARG_TEST: |
fa0f4d8a | 818 | arg_action = ACTION_TEST; |
b87c2aa6 ZJS |
819 | if (arg_no_pager < 0) |
820 | arg_no_pager = true; | |
821 | break; | |
822 | ||
823 | case ARG_NO_PAGER: | |
824 | arg_no_pager = true; | |
e965d56d LP |
825 | break; |
826 | ||
9ba0bc4e ZJS |
827 | case ARG_VERSION: |
828 | arg_action = ACTION_VERSION; | |
829 | break; | |
830 | ||
e537352b | 831 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 832 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
833 | break; |
834 | ||
9e58ff9c | 835 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
836 | r = optarg ? parse_boolean(optarg) : 1; |
837 | if (r < 0) { | |
838 | log_error("Failed to parse dump core boolean %s.", optarg); | |
839 | return r; | |
840 | } | |
841 | arg_dump_core = r; | |
9e58ff9c LP |
842 | break; |
843 | ||
844 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
845 | r = optarg ? parse_boolean(optarg) : 1; |
846 | if (r < 0) { | |
847 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
848 | return r; | |
849 | } | |
850 | arg_crash_shell = r; | |
9e58ff9c LP |
851 | break; |
852 | ||
80876c20 | 853 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
854 | r = optarg ? parse_boolean(optarg) : 1; |
855 | if (r < 0) { | |
856 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
857 | return r; | |
858 | } | |
859 | arg_confirm_spawn = r; | |
80876c20 LP |
860 | break; |
861 | ||
9e58ff9c | 862 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
863 | if (optarg) { |
864 | r = parse_show_status(optarg, &arg_show_status); | |
865 | if (r < 0) { | |
866 | log_error("Failed to parse show status boolean %s.", optarg); | |
867 | return r; | |
868 | } | |
869 | } else | |
870 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 871 | break; |
a5d87bf0 | 872 | |
a16e1123 LP |
873 | case ARG_DESERIALIZE: { |
874 | int fd; | |
875 | FILE *f; | |
876 | ||
01e10de3 LP |
877 | r = safe_atoi(optarg, &fd); |
878 | if (r < 0 || fd < 0) { | |
a16e1123 | 879 | log_error("Failed to parse deserialize option %s.", optarg); |
01e10de3 | 880 | return r < 0 ? r : -EINVAL; |
a16e1123 LP |
881 | } |
882 | ||
01e10de3 LP |
883 | fd_cloexec(fd, true); |
884 | ||
885 | f = fdopen(fd, "r"); | |
4a62c710 MS |
886 | if (!f) |
887 | return log_error_errno(errno, "Failed to open serialization fd: %m"); | |
a16e1123 | 888 | |
d3b1c508 LP |
889 | if (arg_serialization) |
890 | fclose(arg_serialization); | |
a16e1123 | 891 | |
d3b1c508 | 892 | arg_serialization = f; |
a16e1123 LP |
893 | |
894 | break; | |
895 | } | |
896 | ||
2660882b | 897 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 898 | arg_switched_root = true; |
d03bc1b8 HH |
899 | break; |
900 | ||
f170852a | 901 | case 'h': |
fa0f4d8a | 902 | arg_action = ACTION_HELP; |
b87c2aa6 ZJS |
903 | if (arg_no_pager < 0) |
904 | arg_no_pager = true; | |
f170852a LP |
905 | break; |
906 | ||
1d2e23ab LP |
907 | case 'D': |
908 | log_set_max_level(LOG_DEBUG); | |
909 | break; | |
910 | ||
099663ff LP |
911 | case 'b': |
912 | case 's': | |
913 | case 'z': | |
914 | /* Just to eat away the sysvinit kernel | |
915 | * cmdline args without getopt() error | |
916 | * messages that we'll parse in | |
917 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 918 | |
099663ff | 919 | case '?': |
601185b4 | 920 | if (getpid() != 1) |
099663ff | 921 | return -EINVAL; |
601185b4 ZJS |
922 | else |
923 | return 0; | |
099663ff | 924 | |
601185b4 ZJS |
925 | default: |
926 | assert_not_reached("Unhandled option code."); | |
f170852a LP |
927 | } |
928 | ||
d821e6d6 LP |
929 | if (optind < argc && getpid() != 1) { |
930 | /* Hmm, when we aren't run as init system | |
931 | * let's complain about excess arguments */ | |
932 | ||
933 | log_error("Excess arguments."); | |
934 | return -EINVAL; | |
935 | } | |
936 | ||
f170852a LP |
937 | return 0; |
938 | } | |
939 | ||
940 | static int help(void) { | |
941 | ||
2e33c433 | 942 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 943 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 944 | " -h --help Show this help\n" |
e537352b | 945 | " --test Determine startup sequence, dump it and exit\n" |
b87c2aa6 | 946 | " --no-pager Do not pipe output into a pager\n" |
80876c20 | 947 | " --dump-configuration-items Dump understood unit configuration items\n" |
9e58ff9c | 948 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 949 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 950 | " --user Run a user instance\n" |
a5d87bf0 LP |
951 | " --dump-core[=0|1] Dump core on crash\n" |
952 | " --crash-shell[=0|1] Run shell on crash\n" | |
953 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 954 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
c1dc6153 | 955 | " --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n" |
9e58ff9c | 956 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 957 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
958 | " --log-location[=0|1] Include code location in log messages\n" |
959 | " --default-standard-output= Set default standard output for services\n" | |
960 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 961 | program_invocation_short_name); |
f170852a LP |
962 | |
963 | return 0; | |
964 | } | |
965 | ||
9ba0bc4e ZJS |
966 | static int version(void) { |
967 | puts(PACKAGE_STRING); | |
9ba0bc4e ZJS |
968 | puts(SYSTEMD_FEATURES); |
969 | ||
970 | return 0; | |
971 | } | |
972 | ||
b3680f49 | 973 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
a16e1123 LP |
974 | FILE *f = NULL; |
975 | FDSet *fds = NULL; | |
976 | int r; | |
977 | ||
978 | assert(m); | |
979 | assert(_f); | |
980 | assert(_fds); | |
981 | ||
6b78f9b4 LP |
982 | r = manager_open_serialization(m, &f); |
983 | if (r < 0) { | |
da927ba9 | 984 | log_error_errno(r, "Failed to create serialization file: %m"); |
a16e1123 LP |
985 | goto fail; |
986 | } | |
987 | ||
71445ae7 LP |
988 | /* Make sure nothing is really destructed when we shut down */ |
989 | m->n_reloading ++; | |
718db961 | 990 | bus_manager_send_reloading(m, true); |
71445ae7 | 991 | |
6b78f9b4 LP |
992 | fds = fdset_new(); |
993 | if (!fds) { | |
a16e1123 | 994 | r = -ENOMEM; |
da927ba9 | 995 | log_error_errno(r, "Failed to allocate fd set: %m"); |
a16e1123 LP |
996 | goto fail; |
997 | } | |
998 | ||
b3680f49 | 999 | r = manager_serialize(m, f, fds, switching_root); |
6b78f9b4 | 1000 | if (r < 0) { |
da927ba9 | 1001 | log_error_errno(r, "Failed to serialize state: %m"); |
a16e1123 LP |
1002 | goto fail; |
1003 | } | |
1004 | ||
1005 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
56f64d95 | 1006 | log_error_errno(errno, "Failed to rewind serialization fd: %m"); |
a16e1123 LP |
1007 | goto fail; |
1008 | } | |
1009 | ||
6b78f9b4 LP |
1010 | r = fd_cloexec(fileno(f), false); |
1011 | if (r < 0) { | |
da927ba9 | 1012 | log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m"); |
a16e1123 LP |
1013 | goto fail; |
1014 | } | |
1015 | ||
6b78f9b4 LP |
1016 | r = fdset_cloexec(fds, false); |
1017 | if (r < 0) { | |
da927ba9 | 1018 | log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m"); |
a16e1123 LP |
1019 | goto fail; |
1020 | } | |
1021 | ||
1022 | *_f = f; | |
1023 | *_fds = fds; | |
1024 | ||
1025 | return 0; | |
1026 | ||
1027 | fail: | |
1028 | fdset_free(fds); | |
1029 | ||
1030 | if (f) | |
1031 | fclose(f); | |
1032 | ||
1033 | return r; | |
1034 | } | |
1035 | ||
4096d6f5 LP |
1036 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1037 | struct rlimit nl; | |
1038 | int r; | |
1039 | ||
1040 | assert(saved_rlimit); | |
1041 | ||
1042 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1043 | * later when transitioning from the initrd to the main | |
1044 | * systemd or suchlike. */ | |
4a62c710 MS |
1045 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) |
1046 | return log_error_errno(errno, "Reading RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1047 | |
1048 | /* Make sure forked processes get the default kernel setting */ | |
1049 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1050 | struct rlimit *rl; | |
1051 | ||
1052 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1053 | if (!rl) | |
1054 | return log_oom(); | |
1055 | ||
1056 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1057 | } | |
1058 | ||
1059 | /* Bump up the resource limit for ourselves substantially */ | |
1060 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1061 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
23bbb0de MS |
1062 | if (r < 0) |
1063 | return log_error_errno(r, "Setting RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1064 | |
1065 | return 0; | |
1066 | } | |
1067 | ||
6ee5bbf8 | 1068 | static void test_mtab(void) { |
6ee5bbf8 | 1069 | |
5b4c0131 LP |
1070 | static const char ok[] = |
1071 | "/proc/self/mounts\0" | |
1072 | "/proc/mounts\0" | |
1073 | "../proc/self/mounts\0" | |
1074 | "../proc/mounts\0"; | |
80758717 | 1075 | |
5b4c0131 LP |
1076 | _cleanup_free_ char *p = NULL; |
1077 | int r; | |
6ee5bbf8 | 1078 | |
5b4c0131 LP |
1079 | /* Check that /etc/mtab is a symlink to the right place or |
1080 | * non-existing. But certainly not a file, or a symlink to | |
1081 | * some weird place... */ | |
6ee5bbf8 | 1082 | |
5b4c0131 LP |
1083 | r = readlink_malloc("/etc/mtab", &p); |
1084 | if (r == -ENOENT) | |
1085 | return; | |
1086 | if (r >= 0 && nulstr_contains(ok, p)) | |
1087 | return; | |
6ee5bbf8 | 1088 | |
80758717 LP |
1089 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1090 | "This is not supported anymore. " | |
1091 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1092 | } | |
1093 | ||
1094 | static void test_usr(void) { | |
80758717 | 1095 | |
ed1c99fc | 1096 | /* Check that /usr is not a separate fs */ |
80758717 | 1097 | |
871c44a7 LP |
1098 | if (dir_is_empty("/usr") <= 0) |
1099 | return; | |
1100 | ||
2376ce13 | 1101 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1102 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1103 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1104 | } | |
1105 | ||
a07fdfa3 LP |
1106 | static int initialize_join_controllers(void) { |
1107 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1108 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
1109 | * "cpuset" does't really work for groups with no initialized | |
1110 | * attributes. */ | |
1111 | ||
1112 | arg_join_controllers = new(char**, 3); | |
1113 | if (!arg_join_controllers) | |
1114 | return -ENOMEM; | |
1115 | ||
1116 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
a07fdfa3 | 1117 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
a6b26d90 ZJS |
1118 | arg_join_controllers[2] = NULL; |
1119 | ||
1120 | if (!arg_join_controllers[0] || !arg_join_controllers[1]) { | |
1121 | free_join_controllers(); | |
a07fdfa3 | 1122 | return -ENOMEM; |
a6b26d90 | 1123 | } |
a07fdfa3 | 1124 | |
a07fdfa3 LP |
1125 | return 0; |
1126 | } | |
1127 | ||
d3b1c508 LP |
1128 | static int enforce_syscall_archs(Set *archs) { |
1129 | #ifdef HAVE_SECCOMP | |
1130 | scmp_filter_ctx *seccomp; | |
1131 | Iterator i; | |
1132 | void *id; | |
1133 | int r; | |
1134 | ||
1135 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1136 | if (!seccomp) | |
1137 | return log_oom(); | |
1138 | ||
1139 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1140 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1141 | if (r == -EEXIST) | |
1142 | continue; | |
1143 | if (r < 0) { | |
da927ba9 | 1144 | log_error_errno(r, "Failed to add architecture to seccomp: %m"); |
d3b1c508 LP |
1145 | goto finish; |
1146 | } | |
1147 | } | |
1148 | ||
8a8bf3c0 LP |
1149 | r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); |
1150 | if (r < 0) { | |
da927ba9 | 1151 | log_error_errno(r, "Failed to unset NO_NEW_PRIVS: %m"); |
8a8bf3c0 LP |
1152 | goto finish; |
1153 | } | |
1154 | ||
d3b1c508 LP |
1155 | r = seccomp_load(seccomp); |
1156 | if (r < 0) | |
da927ba9 | 1157 | log_error_errno(r, "Failed to add install architecture seccomp: %m"); |
d3b1c508 LP |
1158 | |
1159 | finish: | |
1160 | seccomp_release(seccomp); | |
1161 | return r; | |
1162 | #else | |
1163 | return 0; | |
1164 | #endif | |
1165 | } | |
1166 | ||
b6e2f329 LP |
1167 | static int status_welcome(void) { |
1168 | _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; | |
1169 | int r; | |
1170 | ||
1171 | r = parse_env_file("/etc/os-release", NEWLINE, | |
1172 | "PRETTY_NAME", &pretty_name, | |
1173 | "ANSI_COLOR", &ansi_color, | |
1174 | NULL); | |
5ae4d543 LP |
1175 | if (r == -ENOENT) { |
1176 | r = parse_env_file("/usr/lib/os-release", NEWLINE, | |
1177 | "PRETTY_NAME", &pretty_name, | |
1178 | "ANSI_COLOR", &ansi_color, | |
1179 | NULL); | |
1180 | } | |
b6e2f329 LP |
1181 | |
1182 | if (r < 0 && r != -ENOENT) | |
da927ba9 | 1183 | log_warning_errno(r, "Failed to read os-release file: %m"); |
b6e2f329 LP |
1184 | |
1185 | return status_printf(NULL, false, false, | |
1186 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1187 | isempty(ansi_color) ? "1" : ansi_color, | |
1188 | isempty(pretty_name) ? "Linux" : pretty_name); | |
1189 | } | |
1190 | ||
fdd25311 LP |
1191 | static int write_container_id(void) { |
1192 | const char *c; | |
1193 | ||
1194 | c = getenv("container"); | |
1195 | if (isempty(c)) | |
1196 | return 0; | |
1197 | ||
1198 | return write_string_file("/run/systemd/container", c); | |
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; |
5f5c2f38 | 1220 | bool empty_etc = false; |
41669317 | 1221 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
4096d6f5 | 1222 | static struct rlimit saved_rlimit_nofile = { 0, 0 }; |
cb6531be | 1223 | const char *error_message = NULL; |
27b14a22 | 1224 | |
058dc6f3 | 1225 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1226 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1227 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1228 | * calling init as a user is identical to telinit. */ |
1229 | ||
1230 | errno = -ENOENT; | |
1231 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
56f64d95 | 1232 | log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); |
2cb1a60d LP |
1233 | return 1; |
1234 | } | |
058dc6f3 | 1235 | #endif |
2cb1a60d | 1236 | |
c3a170f3 HH |
1237 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
1238 | dual_timestamp_get(&userspace_timestamp); | |
1239 | ||
0b3325e7 LP |
1240 | /* Determine if this is a reexecution or normal bootup. We do |
1241 | * the full command line parsing much later, so let's just | |
1242 | * have a quick peek here. */ | |
db813c2a LP |
1243 | if (strv_find(argv+1, "--deserialize")) |
1244 | skip_setup = true; | |
0b3325e7 | 1245 | |
2660882b LP |
1246 | /* If we have switched root, do all the special setup |
1247 | * things */ | |
db813c2a LP |
1248 | if (strv_find(argv+1, "--switched-root")) |
1249 | skip_setup = false; | |
d03bc1b8 | 1250 | |
f3b6a3ed LP |
1251 | /* If we get started via the /sbin/init symlink then we are |
1252 | called 'init'. After a subsequent reexecution we are then | |
1253 | called 'systemd'. That is confusing, hence let's call us | |
1254 | systemd right-away. */ | |
f3b6a3ed LP |
1255 | program_invocation_short_name = systemd; |
1256 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1257 | |
9a0e6896 LP |
1258 | saved_argv = argv; |
1259 | saved_argc = argc; | |
f3b6a3ed | 1260 | |
2cc59dbf | 1261 | log_show_color(isatty(STDERR_FILENO) > 0); |
c1dc6153 | 1262 | log_set_upgrade_syslog_to_journal(true); |
bbe63281 | 1263 | |
90dc8c2e MG |
1264 | /* Disable the umask logic */ |
1265 | if (getpid() == 1) | |
1266 | umask(0); | |
1267 | ||
a866073d | 1268 | if (getpid() == 1 && detect_container(NULL) <= 0) { |
4f8d551f | 1269 | |
a866073d | 1270 | /* Running outside of a container as PID 1 */ |
67445f4e | 1271 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1272 | make_null_stdio(); |
1273 | log_set_target(LOG_TARGET_KMSG); | |
1274 | log_open(); | |
1275 | ||
21bf2ab0 | 1276 | if (in_initrd()) |
c3a170f3 | 1277 | initrd_timestamp = userspace_timestamp; |
c3ba6250 | 1278 | |
2660882b | 1279 | if (!skip_setup) { |
8f838d8a | 1280 | mount_setup_early(); |
c2e0d600 | 1281 | dual_timestamp_get(&security_start_timestamp); |
cb6531be ZJS |
1282 | if (mac_selinux_setup(&loaded_policy) < 0) { |
1283 | error_message = "Failed to load SELinux policy"; | |
0b3325e7 | 1284 | goto finish; |
cb6531be ZJS |
1285 | } else if (ima_setup() < 0) { |
1286 | error_message = "Failed to load IMA policy"; | |
81611586 | 1287 | goto finish; |
cb6531be ZJS |
1288 | } else if (mac_smack_setup(&loaded_policy) < 0) { |
1289 | error_message = "Failed to load SMACK policy"; | |
ffbd2c4d | 1290 | goto finish; |
cb6531be | 1291 | } |
c2e0d600 | 1292 | dual_timestamp_get(&security_finish_timestamp); |
81611586 | 1293 | } |
0b3325e7 | 1294 | |
cb6531be ZJS |
1295 | if (mac_selinux_init(NULL) < 0) { |
1296 | error_message = "Failed to initialize SELinux policy"; | |
0ff4cdd9 | 1297 | goto finish; |
cb6531be | 1298 | } |
7948c4df | 1299 | |
72edcff5 | 1300 | if (!skip_setup) { |
24efb112 | 1301 | if (clock_is_localtime() > 0) { |
0b3325e7 | 1302 | int min; |
7948c4df | 1303 | |
c264aeab KS |
1304 | /* |
1305 | * The very first call of settimeofday() also does a time warp in the kernel. | |
1306 | * | |
1307 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on | |
1308 | * external tools to take care of maintaining the RTC and do all adjustments. | |
1309 | * This matches the behavior of Windows, which leaves the RTC alone if the | |
1310 | * registry tells that the RTC runs in UTC. | |
1311 | */ | |
24efb112 | 1312 | r = clock_set_timezone(&min); |
0b3325e7 | 1313 | if (r < 0) |
da927ba9 | 1314 | log_error_errno(r, "Failed to apply local time delta, ignoring: %m"); |
0b3325e7 LP |
1315 | else |
1316 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1317 | } else if (!in_initrd()) { |
1318 | /* | |
c264aeab | 1319 | * Do a dummy very first call to seal the kernel's time warp magic. |
19e65613 KS |
1320 | * |
1321 | * Do not call this this from inside the initrd. The initrd might not | |
1322 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1323 | * that way. In such case, we need to delay the time-warp or the sealing | |
1324 | * until we reach the real system. | |
c264aeab KS |
1325 | * |
1326 | * Do no set the kernel's timezone. The concept of local time cannot | |
1327 | * be supported reliably, the time will jump or be incorrect at every daylight | |
1328 | * saving time change. All kernel local time concepts will be treated | |
1329 | * as UTC that way. | |
19e65613 | 1330 | */ |
c264aeab | 1331 | clock_reset_timewarp(); |
72edcff5 KS |
1332 | } |
1333 | } | |
a866073d LP |
1334 | |
1335 | /* Set the default for later on, but don't actually | |
1336 | * open the logs like this for now. Note that if we | |
1337 | * are transitioning from the initrd there might still | |
1338 | * be journal fd open, and we shouldn't attempt | |
1339 | * opening that before we parsed /proc/cmdline which | |
1340 | * might redirect output elsewhere. */ | |
1341 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1342 | ||
1343 | } else if (getpid() == 1) { | |
a866073d | 1344 | /* Running inside a container, as PID 1 */ |
67445f4e | 1345 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d | 1346 | log_set_target(LOG_TARGET_CONSOLE); |
99f09825 | 1347 | log_close_console(); /* force reopen of /dev/console */ |
a866073d LP |
1348 | log_open(); |
1349 | ||
1350 | /* For the later on, see above... */ | |
1351 | log_set_target(LOG_TARGET_JOURNAL); | |
1352 | ||
c3a170f3 HH |
1353 | /* clear the kernel timestamp, |
1354 | * because we are in a container */ | |
1355 | kernel_timestamp.monotonic = 0ULL; | |
1356 | kernel_timestamp.realtime = 0ULL; | |
a866073d | 1357 | |
c3a170f3 | 1358 | } else { |
a866073d | 1359 | /* Running as user instance */ |
67445f4e | 1360 | arg_running_as = SYSTEMD_USER; |
eeecf6e6 | 1361 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1362 | log_open(); |
c3a170f3 HH |
1363 | |
1364 | /* clear the kernel timestamp, | |
1365 | * because we are not PID 1 */ | |
1366 | kernel_timestamp.monotonic = 0ULL; | |
1367 | kernel_timestamp.realtime = 0ULL; | |
bbe63281 | 1368 | } |
a5dab5ce | 1369 | |
0c85a4f3 | 1370 | /* Initialize default unit */ |
6afa301b LP |
1371 | r = set_default_unit(SPECIAL_DEFAULT_TARGET); |
1372 | if (r < 0) { | |
da927ba9 | 1373 | log_emergency_errno(r, "Failed to set default unit %s: %m", SPECIAL_DEFAULT_TARGET); |
cb6531be | 1374 | error_message = "Failed to set default unit"; |
f170852a | 1375 | goto finish; |
14212119 | 1376 | } |
60918275 | 1377 | |
a07fdfa3 | 1378 | r = initialize_join_controllers(); |
cb6531be ZJS |
1379 | if (r < 0) { |
1380 | error_message = "Failed to initalize cgroup controllers"; | |
0c85a4f3 | 1381 | goto finish; |
cb6531be | 1382 | } |
0c85a4f3 | 1383 | |
f170852a LP |
1384 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1385 | * /proc/$PID/fd is available. */ | |
c1dae1b3 | 1386 | if (getpid() == 1) { |
f84f9974 LP |
1387 | |
1388 | /* Load the kernel modules early, so that we kdbus.ko is loaded before kdbusfs shall be mounted */ | |
2e75e2a8 DM |
1389 | if (!skip_setup) |
1390 | kmod_setup(); | |
2e75e2a8 | 1391 | |
0c85a4f3 | 1392 | r = mount_setup(loaded_policy); |
cb6531be ZJS |
1393 | if (r < 0) { |
1394 | error_message = "Failed to mount API filesystems"; | |
8efe3c01 | 1395 | goto finish; |
cb6531be | 1396 | } |
0c85a4f3 | 1397 | } |
4ade7963 LP |
1398 | |
1399 | /* Reset all signal handlers. */ | |
1400 | assert_se(reset_all_signal_handlers() == 0); | |
1401 | ||
9a34ec5f | 1402 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1403 | |
cb6531be ZJS |
1404 | if (parse_config_file() < 0) { |
1405 | error_message = "Failed to parse config file"; | |
487393e9 | 1406 | goto finish; |
cb6531be | 1407 | } |
487393e9 | 1408 | |
b5884878 LP |
1409 | if (arg_running_as == SYSTEMD_SYSTEM) { |
1410 | r = parse_proc_cmdline(parse_proc_cmdline_item); | |
1411 | if (r < 0) | |
da927ba9 | 1412 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
b5884878 | 1413 | } |
f170852a | 1414 | |
1de1c9c3 LP |
1415 | /* Note that this also parses bits from the kernel command |
1416 | * line, including "debug". */ | |
f170852a LP |
1417 | log_parse_environment(); |
1418 | ||
cb6531be ZJS |
1419 | if (parse_argv(argc, argv) < 0) { |
1420 | error_message = "Failed to parse commandline arguments"; | |
f170852a | 1421 | goto finish; |
cb6531be | 1422 | } |
f170852a | 1423 | |
6bae23a0 TB |
1424 | if (arg_action == ACTION_TEST && |
1425 | geteuid() == 0) { | |
b5c6cf87 LP |
1426 | log_error("Don't run test mode as root."); |
1427 | goto finish; | |
1428 | } | |
1429 | ||
6bae23a0 TB |
1430 | if (arg_running_as == SYSTEMD_USER && |
1431 | arg_action == ACTION_RUN && | |
1432 | sd_booted() <= 0) { | |
1433 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1434 | goto finish; | |
1435 | } | |
1436 | ||
67445f4e | 1437 | if (arg_running_as == SYSTEMD_SYSTEM && |
fe783b03 LP |
1438 | arg_action == ACTION_RUN && |
1439 | running_in_chroot() > 0) { | |
1440 | log_error("Cannot be run in a chroot() environment."); | |
1441 | goto finish; | |
1442 | } | |
1443 | ||
0d8c31ff ZJS |
1444 | if (arg_action == ACTION_TEST) |
1445 | skip_setup = true; | |
1446 | ||
b87c2aa6 ZJS |
1447 | pager_open_if_enabled(); |
1448 | ||
fa0f4d8a | 1449 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1450 | retval = help(); |
1451 | goto finish; | |
9ba0bc4e ZJS |
1452 | } else if (arg_action == ACTION_VERSION) { |
1453 | retval = version(); | |
1454 | goto finish; | |
fa0f4d8a | 1455 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1456 | unit_dump_config_items(stdout); |
22f4096c | 1457 | retval = EXIT_SUCCESS; |
e537352b | 1458 | goto finish; |
fa0f4d8a | 1459 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1460 | retval = EXIT_SUCCESS; |
4288f619 | 1461 | goto finish; |
f170852a LP |
1462 | } |
1463 | ||
8be28fb1 KS |
1464 | if (arg_running_as == SYSTEMD_USER && |
1465 | !getenv("XDG_RUNTIME_DIR")) { | |
1466 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1467 | goto finish; | |
1468 | } | |
1469 | ||
fa0f4d8a | 1470 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1471 | |
871e5809 LP |
1472 | /* Close logging fds, in order not to confuse fdset below */ |
1473 | log_close(); | |
1474 | ||
a16e1123 | 1475 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1476 | r = fdset_new_fill(&fds); |
1477 | if (r < 0) { | |
da927ba9 | 1478 | log_emergency_errno(r, "Failed to allocate fd set: %m"); |
cb6531be | 1479 | error_message = "Failed to allocate fd set"; |
01e10de3 LP |
1480 | goto finish; |
1481 | } else | |
1482 | fdset_cloexec(fds, true); | |
a16e1123 | 1483 | |
d3b1c508 LP |
1484 | if (arg_serialization) |
1485 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
a16e1123 | 1486 | |
90dc8c2e | 1487 | if (arg_running_as == SYSTEMD_SYSTEM) |
80876c20 LP |
1488 | /* Become a session leader if we aren't one yet. */ |
1489 | setsid(); | |
4ade7963 | 1490 | |
befb5b6a LP |
1491 | /* Move out of the way, so that we won't block unmounts */ |
1492 | assert_se(chdir("/") == 0); | |
1493 | ||
2146621b LP |
1494 | /* Reset the console, but only if this is really init and we |
1495 | * are freshly booted */ | |
56d96fc0 LP |
1496 | if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) { |
1497 | ||
1498 | /* If we are init, we connect stdin/stdout/stderr to | |
1499 | * /dev/null and make sure we don't have a controlling | |
1500 | * tty. */ | |
1501 | release_terminal(); | |
1502 | ||
1503 | if (getpid() == 1 && !skip_setup) | |
1504 | console_setup(); | |
1505 | } | |
4ade7963 | 1506 | |
18149b9f | 1507 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1508 | log_open(); |
4ade7963 | 1509 | |
b6e2f329 LP |
1510 | if (arg_show_status == _SHOW_STATUS_UNSET) |
1511 | arg_show_status = SHOW_STATUS_YES; | |
1512 | ||
5373d602 LP |
1513 | /* Make sure we leave a core dump without panicing the |
1514 | * kernel. */ | |
ab422445 | 1515 | if (getpid() == 1) { |
4fc935ca | 1516 | install_crash_handler(); |
97c4f35c | 1517 | |
0c85a4f3 LP |
1518 | r = mount_cgroup_controllers(arg_join_controllers); |
1519 | if (r < 0) | |
1520 | goto finish; | |
1521 | } | |
1522 | ||
67445f4e | 1523 | if (arg_running_as == SYSTEMD_SYSTEM) { |
c20f5ac7 LP |
1524 | const char *virtualization = NULL; |
1525 | ||
0d8c31ff ZJS |
1526 | log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", |
1527 | arg_action == ACTION_TEST ? "test " : "" ); | |
c20f5ac7 LP |
1528 | |
1529 | detect_virtualization(&virtualization); | |
1530 | if (virtualization) | |
1531 | log_info("Detected virtualization '%s'.", virtualization); | |
1532 | ||
fdd25311 LP |
1533 | write_container_id(); |
1534 | ||
d9d93745 LP |
1535 | log_info("Detected architecture '%s'.", architecture_to_string(uname_architecture())); |
1536 | ||
26a1efdf LP |
1537 | if (in_initrd()) |
1538 | log_info("Running in initial RAM disk."); | |
1539 | ||
3408ba01 LP |
1540 | /* Let's check whether /etc is already populated. We |
1541 | * don't actually really check for that, but use | |
1542 | * /etc/machine-id as flag file. This allows container | |
1543 | * managers and installers to provision a couple of | |
1544 | * files already. If the container manager wants to | |
1545 | * provision the machine ID itself it should pass | |
ee33e53a | 1546 | * $container_uuid to PID 1. */ |
3408ba01 | 1547 | |
baa1bdf7 | 1548 | empty_etc = access("/etc/machine-id", F_OK) < 0; |
5f5c2f38 LP |
1549 | if (empty_etc) |
1550 | log_info("Running with unpopulated /etc."); | |
d8160f21 | 1551 | } else { |
1f97091d LP |
1552 | _cleanup_free_ char *t; |
1553 | ||
1554 | t = uid_to_name(getuid()); | |
0d8c31ff ZJS |
1555 | log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", |
1556 | arg_action == ACTION_TEST ? " test" : "", getuid(), t); | |
d8160f21 | 1557 | } |
a5dab5ce | 1558 | |
67445f4e | 1559 | if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { |
d450b6f2 | 1560 | if (arg_show_status > 0 || plymouth_running()) |
888c6216 LP |
1561 | status_welcome(); |
1562 | ||
888c6216 | 1563 | hostname_setup(); |
489388fb | 1564 | machine_id_setup(NULL); |
888c6216 | 1565 | loopback_setup(); |
490aed58 | 1566 | |
6ee5bbf8 | 1567 | test_mtab(); |
80758717 | 1568 | test_usr(); |
af5bc85d | 1569 | } |
302e8c4c | 1570 | |
67445f4e | 1571 | if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) |
e96d6be7 LP |
1572 | watchdog_set_timeout(&arg_runtime_watchdog); |
1573 | ||
3a43da28 | 1574 | if (arg_timer_slack_nsec != NSEC_INFINITY) |
aa0f64ac | 1575 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) |
56f64d95 | 1576 | log_error_errno(errno, "Failed to adjust timer slack: %m"); |
aa0f64ac | 1577 | |
ec8927ca | 1578 | if (arg_capability_bounding_set_drop) { |
31c885e9 | 1579 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
ec8927ca | 1580 | if (r < 0) { |
da927ba9 | 1581 | log_emergency_errno(r, "Failed to drop capability bounding set of usermode helpers: %m"); |
cb6531be | 1582 | error_message = "Failed to drop capability bounding set of usermode helpers"; |
ec8927ca LP |
1583 | goto finish; |
1584 | } | |
31c885e9 | 1585 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); |
939b8f14 | 1586 | if (r < 0) { |
da927ba9 | 1587 | log_emergency_errno(r, "Failed to drop capability bounding set: %m"); |
cb6531be | 1588 | error_message = "Failed to drop capability bounding set"; |
939b8f14 LP |
1589 | goto finish; |
1590 | } | |
ec8927ca LP |
1591 | } |
1592 | ||
d3b1c508 LP |
1593 | if (arg_syscall_archs) { |
1594 | r = enforce_syscall_archs(arg_syscall_archs); | |
cb6531be ZJS |
1595 | if (r < 0) { |
1596 | error_message = "Failed to set syscall architectures"; | |
d3b1c508 | 1597 | goto finish; |
cb6531be | 1598 | } |
d3b1c508 LP |
1599 | } |
1600 | ||
67445f4e | 1601 | if (arg_running_as == SYSTEMD_USER) { |
d4447f4d | 1602 | /* Become reaper of our children */ |
8b8ffe68 | 1603 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { |
56f64d95 | 1604 | log_warning_errno(errno, "Failed to make us a subreaper: %m"); |
8b8ffe68 | 1605 | if (errno == EINVAL) |
ddfa5101 | 1606 | log_info("Perhaps the kernel version is too old (< 3.4?)"); |
8b8ffe68 | 1607 | } |
d4447f4d AK |
1608 | } |
1609 | ||
5f5c2f38 | 1610 | if (arg_running_as == SYSTEMD_SYSTEM) { |
4096d6f5 LP |
1611 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1612 | ||
5f5c2f38 LP |
1613 | if (empty_etc) { |
1614 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_FULL, false, NULL, 0); | |
1615 | if (r < 0) | |
da927ba9 | 1616 | log_warning_errno(r, "Failed to populate /etc with preset unit settings, ignoring: %m"); |
5f5c2f38 LP |
1617 | else |
1618 | log_info("Populated /etc with preset unit settings."); | |
1619 | } | |
1620 | } | |
1621 | ||
0d8c31ff | 1622 | r = manager_new(arg_running_as, arg_action == ACTION_TEST, &m); |
e96d6be7 | 1623 | if (r < 0) { |
da927ba9 | 1624 | log_emergency_errno(r, "Failed to allocate manager object: %m"); |
cb6531be | 1625 | error_message = "Failed to allocate manager object"; |
60918275 LP |
1626 | goto finish; |
1627 | } | |
1628 | ||
9e58ff9c | 1629 | m->confirm_spawn = arg_confirm_spawn; |
bd8f585b | 1630 | m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; |
0a494f1f LP |
1631 | m->default_std_output = arg_default_std_output; |
1632 | m->default_std_error = arg_default_std_error; | |
1f19a534 OS |
1633 | m->default_restart_usec = arg_default_restart_usec; |
1634 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
1635 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
3f41e1e5 LN |
1636 | m->default_start_limit_interval = arg_default_start_limit_interval; |
1637 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
085afe36 LP |
1638 | m->default_cpu_accounting = arg_default_cpu_accounting; |
1639 | m->default_blockio_accounting = arg_default_blockio_accounting; | |
1640 | m->default_memory_accounting = arg_default_memory_accounting; | |
e96d6be7 LP |
1641 | m->runtime_watchdog = arg_runtime_watchdog; |
1642 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
2928b0a8 | 1643 | |
c3a170f3 HH |
1644 | m->userspace_timestamp = userspace_timestamp; |
1645 | m->kernel_timestamp = kernel_timestamp; | |
c3a170f3 | 1646 | m->initrd_timestamp = initrd_timestamp; |
c2e0d600 TA |
1647 | m->security_start_timestamp = security_start_timestamp; |
1648 | m->security_finish_timestamp = security_finish_timestamp; | |
9e58ff9c | 1649 | |
c93ff2e9 | 1650 | manager_set_default_rlimits(m, arg_default_rlimit); |
b6e2f329 | 1651 | manager_environment_add(m, NULL, arg_default_environment); |
27d340c7 | 1652 | manager_set_show_status(m, arg_show_status); |
e2680723 | 1653 | manager_set_first_boot(m, empty_etc); |
27d340c7 | 1654 | |
bf4df7c3 | 1655 | /* Remember whether we should queue the default job */ |
d3b1c508 | 1656 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 1657 | |
9d76d730 LP |
1658 | before_startup = now(CLOCK_MONOTONIC); |
1659 | ||
d3b1c508 | 1660 | r = manager_startup(m, arg_serialization, fds); |
e96d6be7 | 1661 | if (r < 0) |
da927ba9 | 1662 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
a16e1123 | 1663 | |
bf4df7c3 LP |
1664 | /* This will close all file descriptors that were opened, but |
1665 | * not claimed by any unit. */ | |
01e10de3 | 1666 | fdset_free(fds); |
6c081276 | 1667 | fds = NULL; |
f50e0a01 | 1668 | |
d3b1c508 LP |
1669 | if (arg_serialization) { |
1670 | fclose(arg_serialization); | |
1671 | arg_serialization = NULL; | |
bf4df7c3 LP |
1672 | } |
1673 | ||
1674 | if (queue_default_job) { | |
718db961 | 1675 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1c27d3f3 | 1676 | Unit *target = NULL; |
bacbccb7 | 1677 | Job *default_unit_job; |
398ef8ba | 1678 | |
fa0f4d8a | 1679 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1680 | |
e96d6be7 | 1681 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
718db961 LP |
1682 | if (r < 0) |
1683 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1684 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
c33b3297 | 1685 | log_error_errno(target->load_error, "Failed to load default target: %m"); |
ac155bb8 | 1686 | else if (target->load_state == UNIT_MASKED) |
6daf4f90 | 1687 | log_error("Default target masked."); |
27b14a22 | 1688 | |
ac155bb8 | 1689 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1690 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1691 | |
e96d6be7 LP |
1692 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1693 | if (r < 0) { | |
4104970e | 1694 | log_emergency("Failed to load rescue target: %s", bus_error_message(&error, r)); |
cb6531be | 1695 | error_message = "Failed to load rescue target"; |
a16e1123 | 1696 | goto finish; |
11ddb6f4 | 1697 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
c33b3297 | 1698 | log_emergency_errno(target->load_error, "Failed to load rescue target: %m"); |
cb6531be | 1699 | error_message = "Failed to load rescue target"; |
1c27d3f3 | 1700 | goto finish; |
ac155bb8 | 1701 | } else if (target->load_state == UNIT_MASKED) { |
4104970e | 1702 | log_emergency("Rescue target masked."); |
cb6531be | 1703 | error_message = "Rescue target masked"; |
00dc5d76 | 1704 | goto finish; |
a16e1123 LP |
1705 | } |
1706 | } | |
37d88da7 | 1707 | |
ac155bb8 | 1708 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1709 | |
fa0f4d8a | 1710 | if (arg_action == ACTION_TEST) { |
40d50879 | 1711 | printf("-> By units:\n"); |
a16e1123 LP |
1712 | manager_dump_units(m, stdout, "\t"); |
1713 | } | |
1714 | ||
95f1b47d | 1715 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); |
ab17a050 | 1716 | if (r == -EPERM) { |
718db961 | 1717 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
ab17a050 LP |
1718 | |
1719 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); | |
1720 | if (r < 0) { | |
4104970e | 1721 | log_emergency("Failed to start default target: %s", bus_error_message(&error, r)); |
cb6531be | 1722 | error_message = "Failed to start default target"; |
ab17a050 LP |
1723 | goto finish; |
1724 | } | |
1725 | } else if (r < 0) { | |
4104970e | 1726 | log_emergency("Failed to isolate default target: %s", bus_error_message(&error, r)); |
cb6531be | 1727 | error_message = "Failed to isolate default target"; |
37d88da7 LP |
1728 | goto finish; |
1729 | } | |
ab17a050 | 1730 | |
bacbccb7 | 1731 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1732 | |
07672f49 LP |
1733 | after_startup = now(CLOCK_MONOTONIC); |
1734 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1735 | "Loaded units and determined initial transaction in %s.", | |
fdb14b7e | 1736 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 100 * USEC_PER_MSEC)); |
07672f49 | 1737 | |
fa0f4d8a | 1738 | if (arg_action == ACTION_TEST) { |
40d50879 | 1739 | printf("-> By jobs:\n"); |
a16e1123 | 1740 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1741 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1742 | goto finish; |
1743 | } | |
e965d56d | 1744 | } |
d46de8a1 | 1745 | |
a16e1123 | 1746 | for (;;) { |
e96d6be7 LP |
1747 | r = manager_loop(m); |
1748 | if (r < 0) { | |
da927ba9 | 1749 | log_emergency_errno(r, "Failed to run main loop: %m"); |
cb6531be | 1750 | error_message = "Failed to run main loop"; |
a16e1123 LP |
1751 | goto finish; |
1752 | } | |
11dd41ce | 1753 | |
a16e1123 | 1754 | switch (m->exit_code) { |
e965d56d | 1755 | |
a16e1123 | 1756 | case MANAGER_EXIT: |
22f4096c | 1757 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1758 | log_debug("Exit."); |
1759 | goto finish; | |
e965d56d | 1760 | |
a16e1123 | 1761 | case MANAGER_RELOAD: |
e015090f | 1762 | log_info("Reloading."); |
e96d6be7 LP |
1763 | r = manager_reload(m); |
1764 | if (r < 0) | |
da927ba9 | 1765 | log_error_errno(r, "Failed to reload: %m"); |
a16e1123 | 1766 | break; |
cea8e32e | 1767 | |
a16e1123 | 1768 | case MANAGER_REEXECUTE: |
664f88a7 | 1769 | |
cb6531be ZJS |
1770 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) { |
1771 | error_message = "Failed to prepare for reexection"; | |
a16e1123 | 1772 | goto finish; |
cb6531be | 1773 | } |
60918275 | 1774 | |
a16e1123 | 1775 | reexecute = true; |
e015090f | 1776 | log_notice("Reexecuting."); |
a16e1123 LP |
1777 | goto finish; |
1778 | ||
664f88a7 LP |
1779 | case MANAGER_SWITCH_ROOT: |
1780 | /* Steal the switch root parameters */ | |
41669317 | 1781 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1782 | switch_root_init = m->switch_root_init; |
1783 | m->switch_root = m->switch_root_init = NULL; | |
1784 | ||
1785 | if (!switch_root_init) | |
cb6531be ZJS |
1786 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) { |
1787 | error_message = "Failed to prepare for reexection"; | |
664f88a7 | 1788 | goto finish; |
cb6531be | 1789 | } |
664f88a7 LP |
1790 | |
1791 | reexecute = true; | |
1792 | log_notice("Switching root."); | |
1793 | goto finish; | |
1794 | ||
b9080b03 FF |
1795 | case MANAGER_REBOOT: |
1796 | case MANAGER_POWEROFF: | |
1797 | case MANAGER_HALT: | |
1798 | case MANAGER_KEXEC: { | |
1799 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1800 | [MANAGER_REBOOT] = "reboot", | |
1801 | [MANAGER_POWEROFF] = "poweroff", | |
1802 | [MANAGER_HALT] = "halt", | |
1803 | [MANAGER_KEXEC] = "kexec" | |
1804 | }; | |
1805 | ||
1806 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1807 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1808 | |
1809 | log_notice("Shutting down."); | |
1810 | goto finish; | |
1811 | } | |
1812 | ||
a16e1123 LP |
1813 | default: |
1814 | assert_not_reached("Unknown exit code."); | |
1815 | } | |
1816 | } | |
f170852a | 1817 | |
60918275 | 1818 | finish: |
b87c2aa6 ZJS |
1819 | pager_close(); |
1820 | ||
06d8d842 | 1821 | m = manager_free(m); |
60918275 | 1822 | |
d3b1c508 | 1823 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) { |
4096d6f5 | 1824 | free(arg_default_rlimit[j]); |
d3b1c508 LP |
1825 | arg_default_rlimit[j] = NULL; |
1826 | } | |
c93ff2e9 | 1827 | |
fa0f4d8a | 1828 | free(arg_default_unit); |
d3b1c508 LP |
1829 | arg_default_unit = NULL; |
1830 | ||
0c85a4f3 | 1831 | free_join_controllers(); |
b9cd2ec1 | 1832 | |
d3b1c508 LP |
1833 | strv_free(arg_default_environment); |
1834 | arg_default_environment = NULL; | |
1835 | ||
1836 | set_free(arg_syscall_archs); | |
1837 | arg_syscall_archs = NULL; | |
1838 | ||
cc56fafe | 1839 | mac_selinux_finish(); |
b2bb3dbe | 1840 | |
a16e1123 | 1841 | if (reexecute) { |
664f88a7 | 1842 | const char **args; |
e564a982 | 1843 | unsigned i, args_size; |
a16e1123 | 1844 | |
664f88a7 LP |
1845 | /* Close and disarm the watchdog, so that the new |
1846 | * instance can reinitialize it, but doesn't get | |
1847 | * rebooted while we do that */ | |
1848 | watchdog_close(true); | |
a16e1123 | 1849 | |
4096d6f5 LP |
1850 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1851 | * that the new systemd can pass the kernel default to | |
1852 | * its child processes */ | |
1853 | if (saved_rlimit_nofile.rlim_cur > 0) | |
1854 | setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); | |
1855 | ||
41669317 | 1856 | if (switch_root_dir) { |
cee530bb LP |
1857 | /* Kill all remaining processes from the |
1858 | * initrd, but don't wait for them, so that we | |
1859 | * can handle the SIGCHLD for them after | |
1860 | * deserializing. */ | |
0bee65f0 | 1861 | broadcast_signal(SIGTERM, false, true); |
bd3fa1d2 | 1862 | |
5a4bf02f HH |
1863 | /* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */ |
1864 | r = switch_root(switch_root_dir, "/mnt", true, MS_MOVE); | |
41669317 | 1865 | if (r < 0) |
da927ba9 | 1866 | log_error_errno(r, "Failed to switch root, trying to continue: %m"); |
41669317 | 1867 | } |
a16e1123 | 1868 | |
d03bc1b8 | 1869 | args_size = MAX(6, argc+1); |
e564a982 | 1870 | args = newa(const char*, args_size); |
a16e1123 | 1871 | |
664f88a7 LP |
1872 | if (!switch_root_init) { |
1873 | char sfd[16]; | |
a16e1123 | 1874 | |
664f88a7 LP |
1875 | /* First try to spawn ourselves with the right |
1876 | * path, and with full serialization. We do | |
1877 | * this only if the user didn't specify an | |
1878 | * explicit init to spawn. */ | |
edb9aaa8 | 1879 | |
d3b1c508 | 1880 | assert(arg_serialization); |
664f88a7 | 1881 | assert(fds); |
edb9aaa8 | 1882 | |
d3b1c508 | 1883 | snprintf(sfd, sizeof(sfd), "%i", fileno(arg_serialization)); |
664f88a7 | 1884 | char_array_0(sfd); |
edb9aaa8 | 1885 | |
664f88a7 LP |
1886 | i = 0; |
1887 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1888 | if (switch_root_dir) |
2660882b | 1889 | args[i++] = "--switched-root"; |
67445f4e | 1890 | args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user"; |
664f88a7 LP |
1891 | args[i++] = "--deserialize"; |
1892 | args[i++] = sfd; | |
1893 | args[i++] = NULL; | |
edb9aaa8 | 1894 | |
ce8aba56 KS |
1895 | /* do not pass along the environment we inherit from the kernel or initrd */ |
1896 | if (switch_root_dir) | |
1897 | clearenv(); | |
1898 | ||
e564a982 | 1899 | assert(i <= args_size); |
664f88a7 LP |
1900 | execv(args[0], (char* const*) args); |
1901 | } | |
6e98720f | 1902 | |
664f88a7 LP |
1903 | /* Try the fallback, if there is any, without any |
1904 | * serialization. We pass the original argv[] and | |
1905 | * envp[]. (Well, modulo the ordering changes due to | |
1906 | * getopt() in argv[], and some cleanups in envp[], | |
1907 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1908 | |
d3b1c508 LP |
1909 | if (arg_serialization) { |
1910 | fclose(arg_serialization); | |
1911 | arg_serialization = NULL; | |
b8f83232 | 1912 | } |
a16e1123 | 1913 | |
b8f83232 | 1914 | if (fds) { |
664f88a7 | 1915 | fdset_free(fds); |
b8f83232 LP |
1916 | fds = NULL; |
1917 | } | |
a16e1123 | 1918 | |
a504223d HH |
1919 | /* Reopen the console */ |
1920 | make_console_stdio(); | |
1921 | ||
d3b1c508 | 1922 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
664f88a7 | 1923 | args[i++] = argv[j]; |
a16e1123 | 1924 | args[i++] = NULL; |
e564a982 | 1925 | assert(i <= args_size); |
b8f83232 | 1926 | |
1b6d7fa7 | 1927 | /* Reenable any blocked signals, especially important |
5a85ca1c | 1928 | * if we switch from initial ramdisk to init=... */ |
9bfcda95 | 1929 | reset_all_signal_handlers(); |
1b6d7fa7 | 1930 | reset_signal_mask(); |
5a85ca1c | 1931 | |
b8f83232 LP |
1932 | if (switch_root_init) { |
1933 | args[0] = switch_root_init; | |
1934 | execv(args[0], (char* const*) args); | |
56f64d95 | 1935 | log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m"); |
b8f83232 LP |
1936 | } |
1937 | ||
1938 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1939 | execv(args[0], (char* const*) args); |
1940 | ||
745e2fb7 KS |
1941 | if (errno == ENOENT) { |
1942 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 1943 | |
745e2fb7 KS |
1944 | args[0] = "/bin/sh"; |
1945 | args[1] = NULL; | |
1946 | execv(args[0], (char* const*) args); | |
56f64d95 | 1947 | log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m"); |
745e2fb7 | 1948 | } else |
56f64d95 | 1949 | log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m"); |
a16e1123 LP |
1950 | } |
1951 | ||
d3b1c508 LP |
1952 | if (arg_serialization) { |
1953 | fclose(arg_serialization); | |
1954 | arg_serialization = NULL; | |
1955 | } | |
a16e1123 | 1956 | |
d3b1c508 | 1957 | if (fds) { |
a16e1123 | 1958 | fdset_free(fds); |
d3b1c508 LP |
1959 | fds = NULL; |
1960 | } | |
a16e1123 | 1961 | |
54b434b1 LP |
1962 | #ifdef HAVE_VALGRIND_VALGRIND_H |
1963 | /* If we are PID 1 and running under valgrind, then let's exit | |
1964 | * here explicitly. valgrind will only generate nice output on | |
1965 | * exit(), not on exec(), hence let's do the former not the | |
1966 | * latter here. */ | |
1967 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
1968 | return 0; | |
1969 | #endif | |
1970 | ||
b9080b03 | 1971 | if (shutdown_verb) { |
b1e90ec5 ZJS |
1972 | char log_level[DECIMAL_STR_MAX(int) + 1]; |
1973 | const char* command_line[9] = { | |
b9080b03 FF |
1974 | SYSTEMD_SHUTDOWN_BINARY_PATH, |
1975 | shutdown_verb, | |
b1e90ec5 ZJS |
1976 | "--log-level", log_level, |
1977 | "--log-target", | |
b9080b03 | 1978 | }; |
b1e90ec5 | 1979 | unsigned pos = 5; |
e3e45d4f | 1980 | _cleanup_strv_free_ char **env_block = NULL; |
15bd5aee LP |
1981 | |
1982 | assert(command_line[pos] == NULL); | |
e3e45d4f | 1983 | env_block = strv_copy(environ); |
b9080b03 | 1984 | |
b1e90ec5 ZJS |
1985 | snprintf(log_level, sizeof(log_level), "%d", log_get_max_level()); |
1986 | ||
1987 | switch (log_get_target()) { | |
1988 | case LOG_TARGET_KMSG: | |
1989 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
1990 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
1991 | command_line[pos++] = "kmsg"; | |
1992 | break; | |
1993 | ||
1994 | case LOG_TARGET_CONSOLE: | |
1995 | default: | |
1996 | command_line[pos++] = "console"; | |
1997 | break; | |
1998 | }; | |
1999 | ||
2000 | if (log_get_show_color()) | |
2001 | command_line[pos++] = "--log-color"; | |
2002 | ||
2003 | if (log_get_show_location()) | |
2004 | command_line[pos++] = "--log-location"; | |
2005 | ||
26abdc73 | 2006 | assert(pos < ELEMENTSOF(command_line)); |
b1e90ec5 | 2007 | |
e96d6be7 | 2008 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
e3e45d4f | 2009 | char *e; |
d18f337c | 2010 | |
e96d6be7 LP |
2011 | /* If we reboot let's set the shutdown |
2012 | * watchdog and tell the shutdown binary to | |
2013 | * repeatedly ping it */ | |
2014 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
2015 | watchdog_close(false); | |
2016 | ||
e3e45d4f SP |
2017 | /* Tell the binary how often to ping, ignore failure */ |
2018 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
2019 | strv_push(&env_block, e); | |
2020 | } else | |
e96d6be7 LP |
2021 | watchdog_close(true); |
2022 | ||
66713f77 LP |
2023 | /* Avoid the creation of new processes forked by the |
2024 | * kernel; at this point, we will not listen to the | |
2025 | * signals anyway */ | |
2026 | if (detect_container(NULL) <= 0) | |
2027 | cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); | |
ad929bcc | 2028 | |
d18f337c | 2029 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
56f64d95 | 2030 | log_error_errno(errno, "Failed to execute shutdown binary, %s: %m", |
b1e90ec5 | 2031 | getpid() == 1 ? "freezing" : "quitting"); |
b9080b03 FF |
2032 | } |
2033 | ||
cb6531be ZJS |
2034 | if (getpid() == 1) { |
2035 | if (error_message) | |
2036 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
2037 | ANSI_HIGHLIGHT_RED_ON "!!!!!!" ANSI_HIGHLIGHT_OFF, | |
2038 | "%s, freezing.", error_message); | |
c3b3c274 | 2039 | freeze(); |
cb6531be | 2040 | } |
c3b3c274 | 2041 | |
60918275 LP |
2042 | return retval; |
2043 | } |