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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 LP |
78 | #ifdef HAVE_KMOD |
79 | #include "kmod-setup.h" | |
80 | #endif | |
b6e66135 | 81 | |
f170852a LP |
82 | static enum { |
83 | ACTION_RUN, | |
e965d56d | 84 | ACTION_HELP, |
9ba0bc4e | 85 | ACTION_VERSION, |
e537352b | 86 | ACTION_TEST, |
4288f619 LP |
87 | ACTION_DUMP_CONFIGURATION_ITEMS, |
88 | ACTION_DONE | |
fa0f4d8a | 89 | } arg_action = ACTION_RUN; |
fa0f4d8a | 90 | static char *arg_default_unit = NULL; |
67445f4e | 91 | static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; |
fa0f4d8a LP |
92 | static bool arg_dump_core = true; |
93 | static bool arg_crash_shell = false; | |
94 | static int arg_crash_chvt = -1; | |
95 | static bool arg_confirm_spawn = false; | |
b6e2f329 | 96 | static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; |
bf4df7c3 | 97 | static bool arg_switched_root = false; |
b87c2aa6 | 98 | static int arg_no_pager = -1; |
0c85a4f3 | 99 | static char ***arg_join_controllers = NULL; |
706343f4 | 100 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 101 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
1f19a534 OS |
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; | |
3f41e1e5 LN |
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; | |
e96d6be7 LP |
107 | static usec_t arg_runtime_watchdog = 0; |
108 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
97d0e5f8 | 109 | static char **arg_default_environment = NULL; |
517d56b1 | 110 | static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; |
ec8927ca | 111 | static uint64_t arg_capability_bounding_set_drop = 0; |
aa0f64ac | 112 | static nsec_t arg_timer_slack_nsec = (nsec_t) -1; |
bd8f585b | 113 | static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; |
d3b1c508 LP |
114 | static Set* arg_syscall_archs = NULL; |
115 | static FILE* arg_serialization = NULL; | |
085afe36 LP |
116 | static bool arg_default_cpu_accounting = false; |
117 | static bool arg_default_blockio_accounting = false; | |
118 | static bool arg_default_memory_accounting = false; | |
4fc935ca | 119 | |
d3b1c508 | 120 | static void nop_handler(int sig) {} |
6f5e3f35 | 121 | |
b87c2aa6 ZJS |
122 | static void pager_open_if_enabled(void) { |
123 | ||
124 | if (arg_no_pager <= 0) | |
125 | return; | |
126 | ||
127 | pager_open(false); | |
128 | } | |
129 | ||
919ce0b7 | 130 | noreturn static void crash(int sig) { |
97c4f35c | 131 | |
abb26902 LP |
132 | if (getpid() != 1) |
133 | /* Pass this on immediately, if this is not PID 1 */ | |
134 | raise(sig); | |
135 | else if (!arg_dump_core) | |
582a507f | 136 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 137 | else { |
b92bea5d ZJS |
138 | struct sigaction sa = { |
139 | .sa_handler = nop_handler, | |
140 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, | |
141 | }; | |
97c4f35c LP |
142 | pid_t pid; |
143 | ||
6f5e3f35 | 144 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
abb26902 | 145 | sigaction(SIGCHLD, &sa, NULL); |
6f5e3f35 | 146 | |
e62d8c39 ZJS |
147 | pid = fork(); |
148 | if (pid < 0) | |
f5f6d0e2 | 149 | log_error("Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
97c4f35c LP |
150 | |
151 | else if (pid == 0) { | |
b92bea5d | 152 | struct rlimit rl = {}; |
97c4f35c LP |
153 | |
154 | /* Enable default signal handler for core dump */ | |
155 | zero(sa); | |
156 | sa.sa_handler = SIG_DFL; | |
abb26902 | 157 | sigaction(sig, &sa, NULL); |
97c4f35c LP |
158 | |
159 | /* Don't limit the core dump size */ | |
97c4f35c LP |
160 | rl.rlim_cur = RLIM_INFINITY; |
161 | rl.rlim_max = RLIM_INFINITY; | |
162 | setrlimit(RLIMIT_CORE, &rl); | |
163 | ||
164 | /* Just to be sure... */ | |
abb26902 | 165 | chdir("/"); |
97c4f35c LP |
166 | |
167 | /* Raise the signal again */ | |
168 | raise(sig); | |
169 | ||
170 | assert_not_reached("We shouldn't be here..."); | |
171 | _exit(1); | |
4fc935ca LP |
172 | |
173 | } else { | |
8e12a6ae LP |
174 | siginfo_t status; |
175 | int r; | |
4fc935ca LP |
176 | |
177 | /* Order things nicely. */ | |
e62d8c39 ZJS |
178 | r = wait_for_terminate(pid, &status); |
179 | if (r < 0) | |
7989e1f2 | 180 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); |
8e12a6ae | 181 | else if (status.si_code != CLD_DUMPED) |
7989e1f2 | 182 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 183 | else |
ccd06097 | 184 | log_error("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
97c4f35c LP |
185 | } |
186 | } | |
187 | ||
fa0f4d8a LP |
188 | if (arg_crash_chvt) |
189 | chvt(arg_crash_chvt); | |
601f6a1e | 190 | |
fa0f4d8a | 191 | if (arg_crash_shell) { |
b92bea5d ZJS |
192 | struct sigaction sa = { |
193 | .sa_handler = SIG_IGN, | |
194 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
195 | }; | |
6f5e3f35 | 196 | pid_t pid; |
8c43883a | 197 | |
4fc935ca LP |
198 | log_info("Executing crash shell in 10s..."); |
199 | sleep(10); | |
200 | ||
6f5e3f35 | 201 | /* Let the kernel reap children for us */ |
6f5e3f35 | 202 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); |
8c43883a | 203 | |
cd3bd60a LP |
204 | pid = fork(); |
205 | if (pid < 0) | |
14212119 | 206 | log_error("Failed to fork off crash shell: %m"); |
6f5e3f35 | 207 | else if (pid == 0) { |
cd3bd60a | 208 | make_console_stdio(); |
6f5e3f35 LP |
209 | execl("/bin/sh", "/bin/sh", NULL); |
210 | ||
14212119 | 211 | log_error("execl() failed: %m"); |
6f5e3f35 LP |
212 | _exit(1); |
213 | } | |
c99b188e | 214 | |
ccd06097 | 215 | log_info("Successfully spawned crash shell as pid "PID_FMT".", pid); |
4fc935ca LP |
216 | } |
217 | ||
218 | log_info("Freezing execution."); | |
97c4f35c LP |
219 | freeze(); |
220 | } | |
221 | ||
222 | static void install_crash_handler(void) { | |
b92bea5d ZJS |
223 | struct sigaction sa = { |
224 | .sa_handler = crash, | |
225 | .sa_flags = SA_NODEFER, | |
226 | }; | |
97c4f35c | 227 | |
1b91d3e8 | 228 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 229 | } |
f170852a | 230 | |
843d2643 LP |
231 | static int console_setup(bool do_reset) { |
232 | int tty_fd, r; | |
80876c20 | 233 | |
843d2643 LP |
234 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
235 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 236 | |
843d2643 LP |
237 | release_terminal(); |
238 | ||
239 | if (!do_reset) | |
240 | return 0; | |
80876c20 | 241 | |
512947d4 MS |
242 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
243 | if (tty_fd < 0) { | |
843d2643 LP |
244 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); |
245 | return -tty_fd; | |
246 | } | |
80876c20 | 247 | |
512947d4 MS |
248 | /* We don't want to force text mode. |
249 | * plymouth may be showing pictures already from initrd. */ | |
250 | r = reset_terminal_fd(tty_fd, false); | |
251 | if (r < 0) | |
843d2643 LP |
252 | log_error("Failed to reset /dev/console: %s", strerror(-r)); |
253 | ||
03e334a1 | 254 | safe_close(tty_fd); |
80876c20 LP |
255 | return r; |
256 | } | |
257 | ||
f170852a LP |
258 | static int set_default_unit(const char *u) { |
259 | char *c; | |
260 | ||
261 | assert(u); | |
262 | ||
bf4df7c3 LP |
263 | c = strdup(u); |
264 | if (!c) | |
f170852a LP |
265 | return -ENOMEM; |
266 | ||
fa0f4d8a LP |
267 | free(arg_default_unit); |
268 | arg_default_unit = c; | |
bf4df7c3 | 269 | |
f170852a LP |
270 | return 0; |
271 | } | |
272 | ||
059cb385 | 273 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
f170852a LP |
274 | |
275 | static const char * const rlmap[] = { | |
ed370f5d | 276 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 277 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
278 | "single", SPECIAL_RESCUE_TARGET, |
279 | "-s", SPECIAL_RESCUE_TARGET, | |
280 | "s", SPECIAL_RESCUE_TARGET, | |
281 | "S", SPECIAL_RESCUE_TARGET, | |
282 | "1", SPECIAL_RESCUE_TARGET, | |
283 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
284 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
285 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
286 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a | 287 | }; |
059cb385 | 288 | int r; |
f170852a | 289 | |
059cb385 | 290 | assert(key); |
5192bd19 | 291 | |
059cb385 | 292 | if (streq(key, "systemd.unit") && value) { |
bf4df7c3 LP |
293 | |
294 | if (!in_initrd()) | |
059cb385 | 295 | return set_default_unit(value); |
bf4df7c3 | 296 | |
059cb385 | 297 | } else if (streq(key, "rd.systemd.unit") && value) { |
bf4df7c3 | 298 | |
ca05941b LP |
299 | if (in_initrd()) |
300 | return set_default_unit(value); | |
f170852a | 301 | |
059cb385 | 302 | } else if (streq(key, "systemd.log_target") && value) { |
f170852a | 303 | |
059cb385 LP |
304 | if (log_set_target_from_string(value) < 0) |
305 | log_warning("Failed to parse log target %s. Ignoring.", value); | |
f170852a | 306 | |
059cb385 | 307 | } else if (streq(key, "systemd.log_level") && value) { |
f170852a | 308 | |
059cb385 LP |
309 | if (log_set_max_level_from_string(value) < 0) |
310 | log_warning("Failed to parse log level %s. Ignoring.", value); | |
f170852a | 311 | |
059cb385 | 312 | } else if (streq(key, "systemd.log_color") && value) { |
bbe63281 | 313 | |
059cb385 LP |
314 | if (log_show_color_from_string(value) < 0) |
315 | log_warning("Failed to parse log color setting %s. Ignoring.", value); | |
bbe63281 | 316 | |
059cb385 | 317 | } else if (streq(key, "systemd.log_location") && value) { |
bbe63281 | 318 | |
059cb385 LP |
319 | if (log_show_location_from_string(value) < 0) |
320 | log_warning("Failed to parse log location setting %s. Ignoring.", value); | |
bbe63281 | 321 | |
059cb385 | 322 | } else if (streq(key, "systemd.dump_core") && value) { |
4fc935ca | 323 | |
059cb385 | 324 | r = parse_boolean(value); |
fb472900 | 325 | if (r < 0) |
059cb385 | 326 | log_warning("Failed to parse dump core switch %s. Ignoring.", value); |
4fc935ca | 327 | else |
fa0f4d8a | 328 | arg_dump_core = r; |
4fc935ca | 329 | |
059cb385 | 330 | } else if (streq(key, "systemd.crash_shell") && value) { |
4fc935ca | 331 | |
059cb385 | 332 | r = parse_boolean(value); |
fb472900 | 333 | if (r < 0) |
059cb385 | 334 | log_warning("Failed to parse crash shell switch %s. Ignoring.", value); |
4fc935ca | 335 | else |
fa0f4d8a | 336 | arg_crash_shell = r; |
5e7ee61c | 337 | |
059cb385 | 338 | } else if (streq(key, "systemd.crash_chvt") && value) { |
5e7ee61c | 339 | |
059cb385 LP |
340 | if (safe_atoi(value, &r) < 0) |
341 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); | |
5e7ee61c | 342 | else |
059cb385 | 343 | arg_crash_chvt = r; |
5e7ee61c | 344 | |
059cb385 | 345 | } else if (streq(key, "systemd.confirm_spawn") && value) { |
601f6a1e | 346 | |
059cb385 LP |
347 | r = parse_boolean(value); |
348 | if (r < 0) | |
349 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); | |
601f6a1e | 350 | else |
059cb385 | 351 | arg_confirm_spawn = r; |
601f6a1e | 352 | |
059cb385 | 353 | } else if (streq(key, "systemd.show_status") && value) { |
9e58ff9c | 354 | |
059cb385 | 355 | r = parse_show_status(value, &arg_show_status); |
d450b6f2 | 356 | if (r < 0) |
059cb385 LP |
357 | log_warning("Failed to parse show status switch %s. Ignoring.", value); |
358 | ||
359 | } else if (streq(key, "systemd.default_standard_output") && value) { | |
0a494f1f | 360 | |
059cb385 | 361 | r = exec_output_from_string(value); |
fb472900 | 362 | if (r < 0) |
059cb385 | 363 | log_warning("Failed to parse default standard output switch %s. Ignoring.", value); |
0a494f1f LP |
364 | else |
365 | arg_default_std_output = r; | |
0a494f1f | 366 | |
059cb385 LP |
367 | } else if (streq(key, "systemd.default_standard_error") && value) { |
368 | ||
369 | r = exec_output_from_string(value); | |
fb472900 | 370 | if (r < 0) |
059cb385 | 371 | log_warning("Failed to parse default standard error switch %s. Ignoring.", value); |
0a494f1f LP |
372 | else |
373 | arg_default_std_error = r; | |
9e7c5357 | 374 | |
059cb385 LP |
375 | } else if (streq(key, "systemd.setenv") && value) { |
376 | ||
377 | if (env_assignment_is_valid(value)) { | |
e21fea24 KS |
378 | char **env; |
379 | ||
059cb385 | 380 | env = strv_env_set(arg_default_environment, value); |
e21fea24 KS |
381 | if (env) |
382 | arg_default_environment = env; | |
383 | else | |
059cb385 | 384 | log_warning("Setting environment variable '%s' failed, ignoring: %s", value, strerror(ENOMEM)); |
e21fea24 | 385 | } else |
059cb385 | 386 | log_warning("Environment variable name '%s' is not valid. Ignoring.", value); |
9e58ff9c | 387 | |
059cb385 | 388 | } else if (streq(key, "quiet") && !value) { |
d7b15e0a LP |
389 | |
390 | log_set_max_level(LOG_NOTICE); | |
391 | ||
b6e2f329 | 392 | if (arg_show_status == _SHOW_STATUS_UNSET) |
d450b6f2 | 393 | arg_show_status = SHOW_STATUS_AUTO; |
059cb385 LP |
394 | |
395 | } else if (streq(key, "debug") && !value) { | |
d7b15e0a | 396 | |
9749cd77 | 397 | log_set_max_level(LOG_DEBUG); |
d7b15e0a | 398 | |
b2103dcc KS |
399 | if (detect_container(NULL) > 0) |
400 | log_set_target(LOG_TARGET_CONSOLE); | |
059cb385 LP |
401 | |
402 | } else if (!in_initrd() && !value) { | |
f170852a LP |
403 | unsigned i; |
404 | ||
405 | /* SysV compatibility */ | |
f170852a | 406 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
059cb385 | 407 | if (streq(key, rlmap[i])) |
f170852a LP |
408 | return set_default_unit(rlmap[i+1]); |
409 | } | |
410 | ||
411 | return 0; | |
412 | } | |
413 | ||
e8e581bf ZJS |
414 | #define DEFINE_SETTER(name, func, descr) \ |
415 | static int name(const char *unit, \ | |
416 | const char *filename, \ | |
417 | unsigned line, \ | |
418 | const char *section, \ | |
71a61510 | 419 | unsigned section_line, \ |
e8e581bf ZJS |
420 | const char *lvalue, \ |
421 | int ltype, \ | |
422 | const char *rvalue, \ | |
423 | void *data, \ | |
424 | void *userdata) { \ | |
425 | \ | |
426 | int r; \ | |
427 | \ | |
428 | assert(filename); \ | |
429 | assert(lvalue); \ | |
430 | assert(rvalue); \ | |
431 | \ | |
432 | r = func(rvalue); \ | |
433 | if (r < 0) \ | |
434 | log_syntax(unit, LOG_ERR, filename, line, -r, \ | |
435 | "Invalid " descr "'%s': %s", \ | |
436 | rvalue, strerror(-r)); \ | |
437 | \ | |
438 | return 0; \ | |
439 | } | |
487393e9 | 440 | |
e8e581bf ZJS |
441 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") |
442 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
443 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
444 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
487393e9 | 445 | |
4d7213b2 LP |
446 | static int config_parse_cpu_affinity2( |
447 | const char *unit, | |
448 | const char *filename, | |
449 | unsigned line, | |
450 | const char *section, | |
451 | unsigned section_line, | |
452 | const char *lvalue, | |
453 | int ltype, | |
454 | const char *rvalue, | |
455 | void *data, | |
456 | void *userdata) { | |
487393e9 LP |
457 | |
458 | char *w; | |
459 | size_t l; | |
460 | char *state; | |
461 | cpu_set_t *c = NULL; | |
462 | unsigned ncpus = 0; | |
463 | ||
464 | assert(filename); | |
465 | assert(lvalue); | |
466 | assert(rvalue); | |
467 | ||
f60f22df | 468 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
469 | char *t; |
470 | int r; | |
471 | unsigned cpu; | |
472 | ||
473 | if (!(t = strndup(w, l))) | |
14212119 | 474 | return log_oom(); |
487393e9 LP |
475 | |
476 | r = safe_atou(t, &cpu); | |
477 | free(t); | |
478 | ||
479 | if (!c) | |
480 | if (!(c = cpu_set_malloc(&ncpus))) | |
14212119 | 481 | return log_oom(); |
487393e9 LP |
482 | |
483 | if (r < 0 || cpu >= ncpus) { | |
e8e581bf ZJS |
484 | log_syntax(unit, LOG_ERR, filename, line, -r, |
485 | "Failed to parse CPU affinity '%s'", rvalue); | |
487393e9 LP |
486 | CPU_FREE(c); |
487 | return -EBADMSG; | |
488 | } | |
489 | ||
490 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
491 | } | |
492 | ||
493 | if (c) { | |
494 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
e8e581bf | 495 | log_warning_unit(unit, "Failed to set CPU affinity: %m"); |
487393e9 LP |
496 | |
497 | CPU_FREE(c); | |
498 | } | |
499 | ||
500 | return 0; | |
501 | } | |
502 | ||
4d7213b2 LP |
503 | static int config_parse_show_status( |
504 | const char* unit, | |
505 | const char *filename, | |
506 | unsigned line, | |
507 | const char *section, | |
508 | unsigned section_line, | |
509 | const char *lvalue, | |
510 | int ltype, | |
511 | const char *rvalue, | |
512 | void *data, | |
513 | void *userdata) { | |
514 | ||
515 | int k; | |
516 | ShowStatus *b = data; | |
517 | ||
518 | assert(filename); | |
519 | assert(lvalue); | |
520 | assert(rvalue); | |
521 | assert(data); | |
522 | ||
523 | k = parse_show_status(rvalue, b); | |
524 | if (k < 0) { | |
525 | log_syntax(unit, LOG_ERR, filename, line, -k, | |
526 | "Failed to parse show status setting, ignoring: %s", rvalue); | |
527 | return 0; | |
528 | } | |
529 | ||
530 | return 0; | |
531 | } | |
532 | ||
0c85a4f3 LP |
533 | static void strv_free_free(char ***l) { |
534 | char ***i; | |
535 | ||
536 | if (!l) | |
537 | return; | |
538 | ||
539 | for (i = l; *i; i++) | |
540 | strv_free(*i); | |
541 | ||
542 | free(l); | |
543 | } | |
544 | ||
545 | static void free_join_controllers(void) { | |
0c85a4f3 LP |
546 | strv_free_free(arg_join_controllers); |
547 | arg_join_controllers = NULL; | |
548 | } | |
549 | ||
e8e581bf ZJS |
550 | static int config_parse_join_controllers(const char *unit, |
551 | const char *filename, | |
552 | unsigned line, | |
553 | const char *section, | |
71a61510 | 554 | unsigned section_line, |
e8e581bf ZJS |
555 | const char *lvalue, |
556 | int ltype, | |
557 | const char *rvalue, | |
558 | void *data, | |
559 | void *userdata) { | |
0c85a4f3 LP |
560 | |
561 | unsigned n = 0; | |
562 | char *state, *w; | |
563 | size_t length; | |
564 | ||
565 | assert(filename); | |
566 | assert(lvalue); | |
567 | assert(rvalue); | |
568 | ||
569 | free_join_controllers(); | |
570 | ||
571 | FOREACH_WORD_QUOTED(w, length, rvalue, state) { | |
572 | char *s, **l; | |
573 | ||
574 | s = strndup(w, length); | |
575 | if (!s) | |
14212119 | 576 | return log_oom(); |
0c85a4f3 LP |
577 | |
578 | l = strv_split(s, ","); | |
579 | free(s); | |
580 | ||
581 | strv_uniq(l); | |
582 | ||
583 | if (strv_length(l) <= 1) { | |
584 | strv_free(l); | |
585 | continue; | |
586 | } | |
587 | ||
588 | if (!arg_join_controllers) { | |
589 | arg_join_controllers = new(char**, 2); | |
590 | if (!arg_join_controllers) { | |
591 | strv_free(l); | |
14212119 | 592 | return log_oom(); |
0c85a4f3 LP |
593 | } |
594 | ||
595 | arg_join_controllers[0] = l; | |
596 | arg_join_controllers[1] = NULL; | |
597 | ||
598 | n = 1; | |
599 | } else { | |
600 | char ***a; | |
601 | char ***t; | |
602 | ||
603 | t = new0(char**, n+2); | |
604 | if (!t) { | |
605 | strv_free(l); | |
14212119 | 606 | return log_oom(); |
0c85a4f3 LP |
607 | } |
608 | ||
609 | n = 0; | |
610 | ||
611 | for (a = arg_join_controllers; *a; a++) { | |
612 | ||
613 | if (strv_overlap(*a, l)) { | |
e3e45d4f | 614 | if (strv_extend_strv(&l, *a) < 0) { |
0c85a4f3 LP |
615 | strv_free(l); |
616 | strv_free_free(t); | |
14212119 | 617 | return log_oom(); |
0c85a4f3 LP |
618 | } |
619 | ||
0c85a4f3 LP |
620 | } else { |
621 | char **c; | |
622 | ||
623 | c = strv_copy(*a); | |
624 | if (!c) { | |
625 | strv_free(l); | |
626 | strv_free_free(t); | |
14212119 | 627 | return log_oom(); |
0c85a4f3 LP |
628 | } |
629 | ||
630 | t[n++] = c; | |
631 | } | |
632 | } | |
633 | ||
634 | t[n++] = strv_uniq(l); | |
635 | ||
636 | strv_free_free(arg_join_controllers); | |
637 | arg_join_controllers = t; | |
638 | } | |
639 | } | |
640 | ||
641 | return 0; | |
642 | } | |
643 | ||
487393e9 LP |
644 | static int parse_config_file(void) { |
645 | ||
f975e971 | 646 | const ConfigTableItem items[] = { |
d3b1c508 LP |
647 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
648 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
649 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
650 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
651 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
652 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
653 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, | |
654 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, | |
655 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
656 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
657 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
658 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
659 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, | |
89fffa27 | 660 | #ifdef HAVE_SECCOMP |
d3b1c508 | 661 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
89fffa27 | 662 | #endif |
d3b1c508 | 663 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
bd8f585b | 664 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, |
d3b1c508 LP |
665 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, |
666 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
667 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
668 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
669 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
670 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, | |
671 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, | |
672 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
673 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU] }, | |
674 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE] }, | |
675 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA] }, | |
676 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK] }, | |
677 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE] }, | |
678 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS] }, | |
679 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE] }, | |
680 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS] }, | |
681 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC] }, | |
682 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK] }, | |
683 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS] }, | |
684 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING] }, | |
685 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE] }, | |
686 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE] }, | |
687 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO] }, | |
688 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME] }, | |
085afe36 LP |
689 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, |
690 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, | |
691 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, | |
d3b1c508 | 692 | {} |
487393e9 LP |
693 | }; |
694 | ||
487393e9 | 695 | const char *fn; |
487393e9 | 696 | |
19adb8a3 | 697 | fn = arg_running_as == SYSTEMD_SYSTEM ? PKGSYSCONFDIR "/system.conf" : PKGSYSCONFDIR "/user.conf"; |
36f822c4 ZJS |
698 | config_parse(NULL, fn, NULL, |
699 | "Manager\0", | |
700 | config_item_table_lookup, items, | |
701 | false, false, true, NULL); | |
487393e9 | 702 | |
487393e9 LP |
703 | return 0; |
704 | } | |
705 | ||
f170852a LP |
706 | static int parse_argv(int argc, char *argv[]) { |
707 | ||
708 | enum { | |
709 | ARG_LOG_LEVEL = 0x100, | |
710 | ARG_LOG_TARGET, | |
bbe63281 LP |
711 | ARG_LOG_COLOR, |
712 | ARG_LOG_LOCATION, | |
2f198e2f | 713 | ARG_UNIT, |
edb9aaa8 | 714 | ARG_SYSTEM, |
af2d49f7 | 715 | ARG_USER, |
e537352b | 716 | ARG_TEST, |
b87c2aa6 | 717 | ARG_NO_PAGER, |
9ba0bc4e | 718 | ARG_VERSION, |
80876c20 | 719 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
720 | ARG_DUMP_CORE, |
721 | ARG_CRASH_SHELL, | |
a16e1123 | 722 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 723 | ARG_SHOW_STATUS, |
4288f619 | 724 | ARG_DESERIALIZE, |
2660882b | 725 | ARG_SWITCHED_ROOT, |
0a494f1f LP |
726 | ARG_DEFAULT_STD_OUTPUT, |
727 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
728 | }; |
729 | ||
730 | static const struct option options[] = { | |
a16e1123 LP |
731 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
732 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
733 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
734 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 735 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 736 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 737 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 | 738 | { "test", no_argument, NULL, ARG_TEST }, |
b87c2aa6 | 739 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
a16e1123 | 740 | { "help", no_argument, NULL, 'h' }, |
9ba0bc4e | 741 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 742 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 LP |
743 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
744 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
745 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 746 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 747 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 748 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
0a494f1f LP |
749 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
750 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
fb472900 | 751 | {} |
f170852a LP |
752 | }; |
753 | ||
754 | int c, r; | |
755 | ||
756 | assert(argc >= 1); | |
757 | assert(argv); | |
758 | ||
b770165a LP |
759 | if (getpid() == 1) |
760 | opterr = 0; | |
761 | ||
099663ff | 762 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
763 | |
764 | switch (c) { | |
765 | ||
766 | case ARG_LOG_LEVEL: | |
fb472900 ZJS |
767 | r = log_set_max_level_from_string(optarg); |
768 | if (r < 0) { | |
f170852a LP |
769 | log_error("Failed to parse log level %s.", optarg); |
770 | return r; | |
771 | } | |
772 | ||
773 | break; | |
774 | ||
775 | case ARG_LOG_TARGET: | |
fb472900 ZJS |
776 | r = log_set_target_from_string(optarg); |
777 | if (r < 0) { | |
f170852a LP |
778 | log_error("Failed to parse log target %s.", optarg); |
779 | return r; | |
780 | } | |
781 | ||
782 | break; | |
783 | ||
bbe63281 LP |
784 | case ARG_LOG_COLOR: |
785 | ||
d0b170c8 | 786 | if (optarg) { |
fb472900 ZJS |
787 | r = log_show_color_from_string(optarg); |
788 | if (r < 0) { | |
d0b170c8 LP |
789 | log_error("Failed to parse log color setting %s.", optarg); |
790 | return r; | |
791 | } | |
792 | } else | |
793 | log_show_color(true); | |
bbe63281 LP |
794 | |
795 | break; | |
796 | ||
797 | case ARG_LOG_LOCATION: | |
d0b170c8 | 798 | if (optarg) { |
fb472900 ZJS |
799 | r = log_show_location_from_string(optarg); |
800 | if (r < 0) { | |
d0b170c8 LP |
801 | log_error("Failed to parse log location setting %s.", optarg); |
802 | return r; | |
803 | } | |
804 | } else | |
805 | log_show_location(true); | |
bbe63281 LP |
806 | |
807 | break; | |
808 | ||
0a494f1f | 809 | case ARG_DEFAULT_STD_OUTPUT: |
fb472900 ZJS |
810 | r = exec_output_from_string(optarg); |
811 | if (r < 0) { | |
0a494f1f LP |
812 | log_error("Failed to parse default standard output setting %s.", optarg); |
813 | return r; | |
814 | } else | |
815 | arg_default_std_output = r; | |
816 | break; | |
817 | ||
818 | case ARG_DEFAULT_STD_ERROR: | |
fb472900 ZJS |
819 | r = exec_output_from_string(optarg); |
820 | if (r < 0) { | |
0a494f1f LP |
821 | log_error("Failed to parse default standard error output setting %s.", optarg); |
822 | return r; | |
823 | } else | |
824 | arg_default_std_error = r; | |
825 | break; | |
826 | ||
2f198e2f | 827 | case ARG_UNIT: |
f170852a | 828 | |
fb472900 ZJS |
829 | r = set_default_unit(optarg); |
830 | if (r < 0) { | |
f170852a LP |
831 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); |
832 | return r; | |
833 | } | |
834 | ||
835 | break; | |
836 | ||
edb9aaa8 | 837 | case ARG_SYSTEM: |
67445f4e | 838 | arg_running_as = SYSTEMD_SYSTEM; |
edb9aaa8 | 839 | break; |
a5dab5ce | 840 | |
af2d49f7 | 841 | case ARG_USER: |
67445f4e | 842 | arg_running_as = SYSTEMD_USER; |
a5dab5ce | 843 | break; |
a5dab5ce | 844 | |
e965d56d | 845 | case ARG_TEST: |
fa0f4d8a | 846 | arg_action = ACTION_TEST; |
b87c2aa6 ZJS |
847 | if (arg_no_pager < 0) |
848 | arg_no_pager = true; | |
849 | break; | |
850 | ||
851 | case ARG_NO_PAGER: | |
852 | arg_no_pager = true; | |
e965d56d LP |
853 | break; |
854 | ||
9ba0bc4e ZJS |
855 | case ARG_VERSION: |
856 | arg_action = ACTION_VERSION; | |
857 | break; | |
858 | ||
e537352b | 859 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 860 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
861 | break; |
862 | ||
9e58ff9c | 863 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
864 | r = optarg ? parse_boolean(optarg) : 1; |
865 | if (r < 0) { | |
866 | log_error("Failed to parse dump core boolean %s.", optarg); | |
867 | return r; | |
868 | } | |
869 | arg_dump_core = r; | |
9e58ff9c LP |
870 | break; |
871 | ||
872 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
873 | r = optarg ? parse_boolean(optarg) : 1; |
874 | if (r < 0) { | |
875 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
876 | return r; | |
877 | } | |
878 | arg_crash_shell = r; | |
9e58ff9c LP |
879 | break; |
880 | ||
80876c20 | 881 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
882 | r = optarg ? parse_boolean(optarg) : 1; |
883 | if (r < 0) { | |
884 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
885 | return r; | |
886 | } | |
887 | arg_confirm_spawn = r; | |
80876c20 LP |
888 | break; |
889 | ||
9e58ff9c | 890 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
891 | if (optarg) { |
892 | r = parse_show_status(optarg, &arg_show_status); | |
893 | if (r < 0) { | |
894 | log_error("Failed to parse show status boolean %s.", optarg); | |
895 | return r; | |
896 | } | |
897 | } else | |
898 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 899 | break; |
a5d87bf0 | 900 | |
a16e1123 LP |
901 | case ARG_DESERIALIZE: { |
902 | int fd; | |
903 | FILE *f; | |
904 | ||
01e10de3 LP |
905 | r = safe_atoi(optarg, &fd); |
906 | if (r < 0 || fd < 0) { | |
a16e1123 | 907 | log_error("Failed to parse deserialize option %s.", optarg); |
01e10de3 | 908 | return r < 0 ? r : -EINVAL; |
a16e1123 LP |
909 | } |
910 | ||
01e10de3 LP |
911 | fd_cloexec(fd, true); |
912 | ||
913 | f = fdopen(fd, "r"); | |
914 | if (!f) { | |
a16e1123 | 915 | log_error("Failed to open serialization fd: %m"); |
01e10de3 | 916 | return -errno; |
a16e1123 LP |
917 | } |
918 | ||
d3b1c508 LP |
919 | if (arg_serialization) |
920 | fclose(arg_serialization); | |
a16e1123 | 921 | |
d3b1c508 | 922 | arg_serialization = f; |
a16e1123 LP |
923 | |
924 | break; | |
925 | } | |
926 | ||
2660882b | 927 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 928 | arg_switched_root = true; |
d03bc1b8 HH |
929 | break; |
930 | ||
f170852a | 931 | case 'h': |
fa0f4d8a | 932 | arg_action = ACTION_HELP; |
b87c2aa6 ZJS |
933 | if (arg_no_pager < 0) |
934 | arg_no_pager = true; | |
f170852a LP |
935 | break; |
936 | ||
1d2e23ab LP |
937 | case 'D': |
938 | log_set_max_level(LOG_DEBUG); | |
939 | break; | |
940 | ||
099663ff LP |
941 | case 'b': |
942 | case 's': | |
943 | case 'z': | |
944 | /* Just to eat away the sysvinit kernel | |
945 | * cmdline args without getopt() error | |
946 | * messages that we'll parse in | |
947 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 948 | |
099663ff | 949 | case '?': |
f170852a | 950 | default: |
099663ff LP |
951 | if (getpid() != 1) { |
952 | log_error("Unknown option code %c", c); | |
953 | return -EINVAL; | |
954 | } | |
955 | ||
956 | break; | |
f170852a LP |
957 | } |
958 | ||
d821e6d6 LP |
959 | if (optind < argc && getpid() != 1) { |
960 | /* Hmm, when we aren't run as init system | |
961 | * let's complain about excess arguments */ | |
962 | ||
963 | log_error("Excess arguments."); | |
964 | return -EINVAL; | |
965 | } | |
966 | ||
967 | if (detect_container(NULL) > 0) { | |
968 | char **a; | |
969 | ||
970 | /* All /proc/cmdline arguments the kernel didn't | |
971 | * understand it passed to us. We're not really | |
972 | * interested in that usually since /proc/cmdline is | |
973 | * more interesting and complete. With one exception: | |
974 | * if we are run in a container /proc/cmdline is not | |
975 | * relevant for the container, hence we rely on argv[] | |
976 | * instead. */ | |
977 | ||
74df0fca | 978 | for (a = argv; a < argv + argc; a++) { |
059cb385 LP |
979 | _cleanup_free_ char *w; |
980 | char *value; | |
981 | ||
982 | w = strdup(*a); | |
983 | if (!w) | |
984 | return log_oom(); | |
985 | ||
986 | value = strchr(w, '='); | |
987 | if (value) | |
988 | *(value++) = 0; | |
989 | ||
990 | r = parse_proc_cmdline_item(w, value); | |
74df0fca | 991 | if (r < 0) { |
14212119 | 992 | log_error("Failed on cmdline argument %s: %s", *a, strerror(-r)); |
d821e6d6 | 993 | return r; |
14212119 | 994 | } |
74df0fca | 995 | } |
51f0e189 LP |
996 | } |
997 | ||
f170852a LP |
998 | return 0; |
999 | } | |
1000 | ||
1001 | static int help(void) { | |
1002 | ||
2e33c433 | 1003 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1004 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1005 | " -h --help Show this help\n" |
e537352b | 1006 | " --test Determine startup sequence, dump it and exit\n" |
b87c2aa6 | 1007 | " --no-pager Do not pipe output into a pager\n" |
80876c20 | 1008 | " --dump-configuration-items Dump understood unit configuration items\n" |
9e58ff9c | 1009 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1010 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1011 | " --user Run a user instance\n" |
a5d87bf0 LP |
1012 | " --dump-core[=0|1] Dump core on crash\n" |
1013 | " --crash-shell[=0|1] Run shell on crash\n" | |
1014 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 1015 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
4cfa2c99 | 1016 | " --log-target=TARGET Set log target (console, journal, syslog, kmsg, journal-or-kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 1017 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 1018 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
1019 | " --log-location[=0|1] Include code location in log messages\n" |
1020 | " --default-standard-output= Set default standard output for services\n" | |
1021 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1022 | program_invocation_short_name); |
f170852a LP |
1023 | |
1024 | return 0; | |
1025 | } | |
1026 | ||
9ba0bc4e ZJS |
1027 | static int version(void) { |
1028 | puts(PACKAGE_STRING); | |
9ba0bc4e ZJS |
1029 | puts(SYSTEMD_FEATURES); |
1030 | ||
1031 | return 0; | |
1032 | } | |
1033 | ||
b3680f49 | 1034 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
a16e1123 LP |
1035 | FILE *f = NULL; |
1036 | FDSet *fds = NULL; | |
1037 | int r; | |
1038 | ||
1039 | assert(m); | |
1040 | assert(_f); | |
1041 | assert(_fds); | |
1042 | ||
6b78f9b4 LP |
1043 | r = manager_open_serialization(m, &f); |
1044 | if (r < 0) { | |
35b8ca3a | 1045 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
1046 | goto fail; |
1047 | } | |
1048 | ||
71445ae7 LP |
1049 | /* Make sure nothing is really destructed when we shut down */ |
1050 | m->n_reloading ++; | |
718db961 | 1051 | bus_manager_send_reloading(m, true); |
71445ae7 | 1052 | |
6b78f9b4 LP |
1053 | fds = fdset_new(); |
1054 | if (!fds) { | |
a16e1123 LP |
1055 | r = -ENOMEM; |
1056 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1057 | goto fail; | |
1058 | } | |
1059 | ||
b3680f49 | 1060 | r = manager_serialize(m, f, fds, switching_root); |
6b78f9b4 | 1061 | if (r < 0) { |
a16e1123 LP |
1062 | log_error("Failed to serialize state: %s", strerror(-r)); |
1063 | goto fail; | |
1064 | } | |
1065 | ||
1066 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
1067 | log_error("Failed to rewind serialization fd: %m"); | |
1068 | goto fail; | |
1069 | } | |
1070 | ||
6b78f9b4 LP |
1071 | r = fd_cloexec(fileno(f), false); |
1072 | if (r < 0) { | |
a16e1123 LP |
1073 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); |
1074 | goto fail; | |
1075 | } | |
1076 | ||
6b78f9b4 LP |
1077 | r = fdset_cloexec(fds, false); |
1078 | if (r < 0) { | |
a16e1123 LP |
1079 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); |
1080 | goto fail; | |
1081 | } | |
1082 | ||
1083 | *_f = f; | |
1084 | *_fds = fds; | |
1085 | ||
1086 | return 0; | |
1087 | ||
1088 | fail: | |
1089 | fdset_free(fds); | |
1090 | ||
1091 | if (f) | |
1092 | fclose(f); | |
1093 | ||
1094 | return r; | |
1095 | } | |
1096 | ||
4096d6f5 LP |
1097 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1098 | struct rlimit nl; | |
1099 | int r; | |
1100 | ||
1101 | assert(saved_rlimit); | |
1102 | ||
1103 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1104 | * later when transitioning from the initrd to the main | |
1105 | * systemd or suchlike. */ | |
1106 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) { | |
1107 | log_error("Reading RLIMIT_NOFILE failed: %m"); | |
1108 | return -errno; | |
1109 | } | |
1110 | ||
1111 | /* Make sure forked processes get the default kernel setting */ | |
1112 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1113 | struct rlimit *rl; | |
1114 | ||
1115 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1116 | if (!rl) | |
1117 | return log_oom(); | |
1118 | ||
1119 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1120 | } | |
1121 | ||
1122 | /* Bump up the resource limit for ourselves substantially */ | |
1123 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1124 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
1125 | if (r < 0) { | |
1126 | log_error("Setting RLIMIT_NOFILE failed: %s", strerror(-r)); | |
1127 | return r; | |
1128 | } | |
1129 | ||
1130 | return 0; | |
1131 | } | |
1132 | ||
6ee5bbf8 | 1133 | static void test_mtab(void) { |
6ee5bbf8 | 1134 | |
5b4c0131 LP |
1135 | static const char ok[] = |
1136 | "/proc/self/mounts\0" | |
1137 | "/proc/mounts\0" | |
1138 | "../proc/self/mounts\0" | |
1139 | "../proc/mounts\0"; | |
80758717 | 1140 | |
5b4c0131 LP |
1141 | _cleanup_free_ char *p = NULL; |
1142 | int r; | |
6ee5bbf8 | 1143 | |
5b4c0131 LP |
1144 | /* Check that /etc/mtab is a symlink to the right place or |
1145 | * non-existing. But certainly not a file, or a symlink to | |
1146 | * some weird place... */ | |
6ee5bbf8 | 1147 | |
5b4c0131 LP |
1148 | r = readlink_malloc("/etc/mtab", &p); |
1149 | if (r == -ENOENT) | |
1150 | return; | |
1151 | if (r >= 0 && nulstr_contains(ok, p)) | |
1152 | return; | |
6ee5bbf8 | 1153 | |
80758717 LP |
1154 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1155 | "This is not supported anymore. " | |
1156 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1157 | } | |
1158 | ||
1159 | static void test_usr(void) { | |
80758717 | 1160 | |
ed1c99fc | 1161 | /* Check that /usr is not a separate fs */ |
80758717 | 1162 | |
871c44a7 LP |
1163 | if (dir_is_empty("/usr") <= 0) |
1164 | return; | |
1165 | ||
2376ce13 | 1166 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1167 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1168 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1169 | } | |
1170 | ||
a07fdfa3 LP |
1171 | static int initialize_join_controllers(void) { |
1172 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1173 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
1174 | * "cpuset" does't really work for groups with no initialized | |
1175 | * attributes. */ | |
1176 | ||
1177 | arg_join_controllers = new(char**, 3); | |
1178 | if (!arg_join_controllers) | |
1179 | return -ENOMEM; | |
1180 | ||
1181 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
a07fdfa3 | 1182 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
a6b26d90 ZJS |
1183 | arg_join_controllers[2] = NULL; |
1184 | ||
1185 | if (!arg_join_controllers[0] || !arg_join_controllers[1]) { | |
1186 | free_join_controllers(); | |
a07fdfa3 | 1187 | return -ENOMEM; |
a6b26d90 | 1188 | } |
a07fdfa3 | 1189 | |
a07fdfa3 LP |
1190 | return 0; |
1191 | } | |
1192 | ||
d3b1c508 LP |
1193 | static int enforce_syscall_archs(Set *archs) { |
1194 | #ifdef HAVE_SECCOMP | |
1195 | scmp_filter_ctx *seccomp; | |
1196 | Iterator i; | |
1197 | void *id; | |
1198 | int r; | |
1199 | ||
1200 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1201 | if (!seccomp) | |
1202 | return log_oom(); | |
1203 | ||
1204 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1205 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1206 | if (r == -EEXIST) | |
1207 | continue; | |
1208 | if (r < 0) { | |
1209 | log_error("Failed to add architecture to seccomp: %s", strerror(-r)); | |
1210 | goto finish; | |
1211 | } | |
1212 | } | |
1213 | ||
8a8bf3c0 LP |
1214 | r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); |
1215 | if (r < 0) { | |
1216 | log_error("Failed to unset NO_NEW_PRIVS: %s", strerror(-r)); | |
1217 | goto finish; | |
1218 | } | |
1219 | ||
d3b1c508 LP |
1220 | r = seccomp_load(seccomp); |
1221 | if (r < 0) | |
1222 | log_error("Failed to add install architecture seccomp: %s", strerror(-r)); | |
1223 | ||
1224 | finish: | |
1225 | seccomp_release(seccomp); | |
1226 | return r; | |
1227 | #else | |
1228 | return 0; | |
1229 | #endif | |
1230 | } | |
1231 | ||
b6e2f329 LP |
1232 | static int status_welcome(void) { |
1233 | _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; | |
1234 | int r; | |
1235 | ||
1236 | r = parse_env_file("/etc/os-release", NEWLINE, | |
1237 | "PRETTY_NAME", &pretty_name, | |
1238 | "ANSI_COLOR", &ansi_color, | |
1239 | NULL); | |
5ae4d543 LP |
1240 | if (r == -ENOENT) { |
1241 | r = parse_env_file("/usr/lib/os-release", NEWLINE, | |
1242 | "PRETTY_NAME", &pretty_name, | |
1243 | "ANSI_COLOR", &ansi_color, | |
1244 | NULL); | |
1245 | } | |
b6e2f329 LP |
1246 | |
1247 | if (r < 0 && r != -ENOENT) | |
5ae4d543 | 1248 | log_warning("Failed to read os-release file: %s", strerror(-r)); |
b6e2f329 LP |
1249 | |
1250 | return status_printf(NULL, false, false, | |
1251 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1252 | isempty(ansi_color) ? "1" : ansi_color, | |
1253 | isempty(pretty_name) ? "Linux" : pretty_name); | |
1254 | } | |
1255 | ||
fdd25311 LP |
1256 | static int write_container_id(void) { |
1257 | const char *c; | |
1258 | ||
1259 | c = getenv("container"); | |
1260 | if (isempty(c)) | |
1261 | return 0; | |
1262 | ||
1263 | return write_string_file("/run/systemd/container", c); | |
1264 | } | |
1265 | ||
60918275 LP |
1266 | int main(int argc, char *argv[]) { |
1267 | Manager *m = NULL; | |
22f4096c | 1268 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1269 | usec_t before_startup, after_startup; |
1270 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1271 | FDSet *fds = NULL; |
1272 | bool reexecute = false; | |
b9080b03 | 1273 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1274 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
c3a170f3 HH |
1275 | dual_timestamp userspace_timestamp = { 0ULL, 0ULL }; |
1276 | dual_timestamp kernel_timestamp = { 0ULL, 0ULL }; | |
c2e0d600 TA |
1277 | dual_timestamp security_start_timestamp = { 0ULL, 0ULL }; |
1278 | dual_timestamp security_finish_timestamp = { 0ULL, 0ULL }; | |
5d6b1584 | 1279 | static char systemd[] = "systemd"; |
2660882b | 1280 | bool skip_setup = false; |
d3b1c508 | 1281 | unsigned j; |
0b3325e7 | 1282 | bool loaded_policy = false; |
e96d6be7 | 1283 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1284 | bool queue_default_job = false; |
5f5c2f38 | 1285 | bool empty_etc = false; |
41669317 | 1286 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
4096d6f5 | 1287 | static struct rlimit saved_rlimit_nofile = { 0, 0 }; |
27b14a22 | 1288 | |
058dc6f3 | 1289 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1290 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1291 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1292 | * calling init as a user is identical to telinit. */ |
1293 | ||
1294 | errno = -ENOENT; | |
1295 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1296 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1297 | return 1; | |
1298 | } | |
058dc6f3 | 1299 | #endif |
2cb1a60d | 1300 | |
c3a170f3 HH |
1301 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
1302 | dual_timestamp_get(&userspace_timestamp); | |
1303 | ||
0b3325e7 LP |
1304 | /* Determine if this is a reexecution or normal bootup. We do |
1305 | * the full command line parsing much later, so let's just | |
1306 | * have a quick peek here. */ | |
db813c2a LP |
1307 | if (strv_find(argv+1, "--deserialize")) |
1308 | skip_setup = true; | |
0b3325e7 | 1309 | |
2660882b LP |
1310 | /* If we have switched root, do all the special setup |
1311 | * things */ | |
db813c2a LP |
1312 | if (strv_find(argv+1, "--switched-root")) |
1313 | skip_setup = false; | |
d03bc1b8 | 1314 | |
f3b6a3ed LP |
1315 | /* If we get started via the /sbin/init symlink then we are |
1316 | called 'init'. After a subsequent reexecution we are then | |
1317 | called 'systemd'. That is confusing, hence let's call us | |
1318 | systemd right-away. */ | |
f3b6a3ed LP |
1319 | program_invocation_short_name = systemd; |
1320 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1321 | |
9a0e6896 LP |
1322 | saved_argv = argv; |
1323 | saved_argc = argc; | |
f3b6a3ed | 1324 | |
2cc59dbf | 1325 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1326 | |
90dc8c2e MG |
1327 | /* Disable the umask logic */ |
1328 | if (getpid() == 1) | |
1329 | umask(0); | |
1330 | ||
a866073d | 1331 | if (getpid() == 1 && detect_container(NULL) <= 0) { |
4f8d551f | 1332 | |
a866073d | 1333 | /* Running outside of a container as PID 1 */ |
67445f4e | 1334 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1335 | make_null_stdio(); |
1336 | log_set_target(LOG_TARGET_KMSG); | |
1337 | log_open(); | |
1338 | ||
21bf2ab0 | 1339 | if (in_initrd()) |
c3a170f3 | 1340 | initrd_timestamp = userspace_timestamp; |
c3ba6250 | 1341 | |
2660882b | 1342 | if (!skip_setup) { |
8f838d8a | 1343 | mount_setup_early(); |
c2e0d600 | 1344 | dual_timestamp_get(&security_start_timestamp); |
0b3325e7 LP |
1345 | if (selinux_setup(&loaded_policy) < 0) |
1346 | goto finish; | |
81611586 RS |
1347 | if (ima_setup() < 0) |
1348 | goto finish; | |
e49d3c01 | 1349 | if (smack_setup(&loaded_policy) < 0) |
ffbd2c4d | 1350 | goto finish; |
c2e0d600 | 1351 | dual_timestamp_get(&security_finish_timestamp); |
81611586 | 1352 | } |
0b3325e7 | 1353 | |
e9a5ef7c | 1354 | if (label_init(NULL) < 0) |
0ff4cdd9 | 1355 | goto finish; |
7948c4df | 1356 | |
72edcff5 | 1357 | if (!skip_setup) { |
24efb112 | 1358 | if (clock_is_localtime() > 0) { |
0b3325e7 | 1359 | int min; |
7948c4df | 1360 | |
c264aeab KS |
1361 | /* |
1362 | * The very first call of settimeofday() also does a time warp in the kernel. | |
1363 | * | |
1364 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on | |
1365 | * external tools to take care of maintaining the RTC and do all adjustments. | |
1366 | * This matches the behavior of Windows, which leaves the RTC alone if the | |
1367 | * registry tells that the RTC runs in UTC. | |
1368 | */ | |
24efb112 | 1369 | r = clock_set_timezone(&min); |
0b3325e7 LP |
1370 | if (r < 0) |
1371 | log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); | |
1372 | else | |
1373 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1374 | } else if (!in_initrd()) { |
1375 | /* | |
c264aeab | 1376 | * Do a dummy very first call to seal the kernel's time warp magic. |
19e65613 KS |
1377 | * |
1378 | * Do not call this this from inside the initrd. The initrd might not | |
1379 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1380 | * that way. In such case, we need to delay the time-warp or the sealing | |
1381 | * until we reach the real system. | |
c264aeab KS |
1382 | * |
1383 | * Do no set the kernel's timezone. The concept of local time cannot | |
1384 | * be supported reliably, the time will jump or be incorrect at every daylight | |
1385 | * saving time change. All kernel local time concepts will be treated | |
1386 | * as UTC that way. | |
19e65613 | 1387 | */ |
c264aeab | 1388 | clock_reset_timewarp(); |
72edcff5 KS |
1389 | } |
1390 | } | |
a866073d LP |
1391 | |
1392 | /* Set the default for later on, but don't actually | |
1393 | * open the logs like this for now. Note that if we | |
1394 | * are transitioning from the initrd there might still | |
1395 | * be journal fd open, and we shouldn't attempt | |
1396 | * opening that before we parsed /proc/cmdline which | |
1397 | * might redirect output elsewhere. */ | |
1398 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1399 | ||
1400 | } else if (getpid() == 1) { | |
a866073d | 1401 | /* Running inside a container, as PID 1 */ |
67445f4e | 1402 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d | 1403 | log_set_target(LOG_TARGET_CONSOLE); |
99f09825 | 1404 | log_close_console(); /* force reopen of /dev/console */ |
a866073d LP |
1405 | log_open(); |
1406 | ||
1407 | /* For the later on, see above... */ | |
1408 | log_set_target(LOG_TARGET_JOURNAL); | |
1409 | ||
c3a170f3 HH |
1410 | /* clear the kernel timestamp, |
1411 | * because we are in a container */ | |
1412 | kernel_timestamp.monotonic = 0ULL; | |
1413 | kernel_timestamp.realtime = 0ULL; | |
a866073d | 1414 | |
c3a170f3 | 1415 | } else { |
a866073d | 1416 | /* Running as user instance */ |
67445f4e | 1417 | arg_running_as = SYSTEMD_USER; |
eeecf6e6 | 1418 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1419 | log_open(); |
c3a170f3 HH |
1420 | |
1421 | /* clear the kernel timestamp, | |
1422 | * because we are not PID 1 */ | |
1423 | kernel_timestamp.monotonic = 0ULL; | |
1424 | kernel_timestamp.realtime = 0ULL; | |
bbe63281 | 1425 | } |
a5dab5ce | 1426 | |
0c85a4f3 | 1427 | /* Initialize default unit */ |
6afa301b LP |
1428 | r = set_default_unit(SPECIAL_DEFAULT_TARGET); |
1429 | if (r < 0) { | |
14212119 | 1430 | log_error("Failed to set default unit %s: %s", SPECIAL_DEFAULT_TARGET, strerror(-r)); |
f170852a | 1431 | goto finish; |
14212119 | 1432 | } |
60918275 | 1433 | |
a07fdfa3 LP |
1434 | r = initialize_join_controllers(); |
1435 | if (r < 0) | |
0c85a4f3 LP |
1436 | goto finish; |
1437 | ||
f170852a LP |
1438 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1439 | * /proc/$PID/fd is available. */ | |
c1dae1b3 | 1440 | if (getpid() == 1) { |
0c85a4f3 LP |
1441 | r = mount_setup(loaded_policy); |
1442 | if (r < 0) | |
8efe3c01 | 1443 | goto finish; |
0c85a4f3 | 1444 | } |
4ade7963 LP |
1445 | |
1446 | /* Reset all signal handlers. */ | |
1447 | assert_se(reset_all_signal_handlers() == 0); | |
1448 | ||
9a34ec5f | 1449 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1450 | |
487393e9 LP |
1451 | if (parse_config_file() < 0) |
1452 | goto finish; | |
1453 | ||
67445f4e | 1454 | if (arg_running_as == SYSTEMD_SYSTEM) |
059cb385 | 1455 | if (parse_proc_cmdline(parse_proc_cmdline_item) < 0) |
a5dab5ce | 1456 | goto finish; |
f170852a LP |
1457 | |
1458 | log_parse_environment(); | |
1459 | ||
1460 | if (parse_argv(argc, argv) < 0) | |
1461 | goto finish; | |
1462 | ||
6bae23a0 TB |
1463 | if (arg_action == ACTION_TEST && |
1464 | geteuid() == 0) { | |
b5c6cf87 LP |
1465 | log_error("Don't run test mode as root."); |
1466 | goto finish; | |
1467 | } | |
1468 | ||
6bae23a0 TB |
1469 | if (arg_running_as == SYSTEMD_USER && |
1470 | arg_action == ACTION_RUN && | |
1471 | sd_booted() <= 0) { | |
1472 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1473 | goto finish; | |
1474 | } | |
1475 | ||
67445f4e | 1476 | if (arg_running_as == SYSTEMD_SYSTEM && |
fe783b03 LP |
1477 | arg_action == ACTION_RUN && |
1478 | running_in_chroot() > 0) { | |
1479 | log_error("Cannot be run in a chroot() environment."); | |
1480 | goto finish; | |
1481 | } | |
1482 | ||
0d8c31ff ZJS |
1483 | if (arg_action == ACTION_TEST) |
1484 | skip_setup = true; | |
1485 | ||
b87c2aa6 ZJS |
1486 | pager_open_if_enabled(); |
1487 | ||
fa0f4d8a | 1488 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1489 | retval = help(); |
1490 | goto finish; | |
9ba0bc4e ZJS |
1491 | } else if (arg_action == ACTION_VERSION) { |
1492 | retval = version(); | |
1493 | goto finish; | |
fa0f4d8a | 1494 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1495 | unit_dump_config_items(stdout); |
22f4096c | 1496 | retval = EXIT_SUCCESS; |
e537352b | 1497 | goto finish; |
fa0f4d8a | 1498 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1499 | retval = EXIT_SUCCESS; |
4288f619 | 1500 | goto finish; |
f170852a LP |
1501 | } |
1502 | ||
8be28fb1 KS |
1503 | if (arg_running_as == SYSTEMD_USER && |
1504 | !getenv("XDG_RUNTIME_DIR")) { | |
1505 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1506 | goto finish; | |
1507 | } | |
1508 | ||
fa0f4d8a | 1509 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1510 | |
871e5809 LP |
1511 | /* Close logging fds, in order not to confuse fdset below */ |
1512 | log_close(); | |
1513 | ||
a16e1123 | 1514 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1515 | r = fdset_new_fill(&fds); |
1516 | if (r < 0) { | |
1517 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1518 | goto finish; | |
1519 | } else | |
1520 | fdset_cloexec(fds, true); | |
a16e1123 | 1521 | |
d3b1c508 LP |
1522 | if (arg_serialization) |
1523 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
a16e1123 | 1524 | |
90dc8c2e | 1525 | if (arg_running_as == SYSTEMD_SYSTEM) |
80876c20 LP |
1526 | /* Become a session leader if we aren't one yet. */ |
1527 | setsid(); | |
4ade7963 | 1528 | |
befb5b6a LP |
1529 | /* Move out of the way, so that we won't block unmounts */ |
1530 | assert_se(chdir("/") == 0); | |
1531 | ||
2146621b LP |
1532 | /* Reset the console, but only if this is really init and we |
1533 | * are freshly booted */ | |
67445f4e | 1534 | if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) |
2660882b | 1535 | console_setup(getpid() == 1 && !skip_setup); |
4ade7963 | 1536 | |
18149b9f | 1537 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1538 | log_open(); |
4ade7963 | 1539 | |
b6e2f329 LP |
1540 | if (arg_show_status == _SHOW_STATUS_UNSET) |
1541 | arg_show_status = SHOW_STATUS_YES; | |
1542 | ||
5373d602 LP |
1543 | /* Make sure we leave a core dump without panicing the |
1544 | * kernel. */ | |
ab422445 | 1545 | if (getpid() == 1) { |
4fc935ca | 1546 | install_crash_handler(); |
97c4f35c | 1547 | |
0c85a4f3 LP |
1548 | r = mount_cgroup_controllers(arg_join_controllers); |
1549 | if (r < 0) | |
1550 | goto finish; | |
1551 | } | |
1552 | ||
67445f4e | 1553 | if (arg_running_as == SYSTEMD_SYSTEM) { |
c20f5ac7 LP |
1554 | const char *virtualization = NULL; |
1555 | ||
0d8c31ff ZJS |
1556 | log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", |
1557 | arg_action == ACTION_TEST ? "test " : "" ); | |
c20f5ac7 LP |
1558 | |
1559 | detect_virtualization(&virtualization); | |
1560 | if (virtualization) | |
1561 | log_info("Detected virtualization '%s'.", virtualization); | |
1562 | ||
fdd25311 LP |
1563 | write_container_id(); |
1564 | ||
d9d93745 LP |
1565 | log_info("Detected architecture '%s'.", architecture_to_string(uname_architecture())); |
1566 | ||
26a1efdf LP |
1567 | if (in_initrd()) |
1568 | log_info("Running in initial RAM disk."); | |
1569 | ||
3408ba01 LP |
1570 | /* Let's check whether /etc is already populated. We |
1571 | * don't actually really check for that, but use | |
1572 | * /etc/machine-id as flag file. This allows container | |
1573 | * managers and installers to provision a couple of | |
1574 | * files already. If the container manager wants to | |
1575 | * provision the machine ID itself it should pass | |
1576 | * $container_uuid to PID 1.*/ | |
1577 | ||
baa1bdf7 | 1578 | empty_etc = access("/etc/machine-id", F_OK) < 0; |
5f5c2f38 LP |
1579 | if (empty_etc) |
1580 | log_info("Running with unpopulated /etc."); | |
d8160f21 | 1581 | } else { |
1f97091d LP |
1582 | _cleanup_free_ char *t; |
1583 | ||
1584 | t = uid_to_name(getuid()); | |
0d8c31ff ZJS |
1585 | log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", |
1586 | arg_action == ACTION_TEST ? " test" : "", getuid(), t); | |
d8160f21 | 1587 | } |
a5dab5ce | 1588 | |
67445f4e | 1589 | if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { |
d450b6f2 | 1590 | if (arg_show_status > 0 || plymouth_running()) |
888c6216 LP |
1591 | status_welcome(); |
1592 | ||
e3043162 | 1593 | #ifdef HAVE_KMOD |
c47fc1f0 | 1594 | kmod_setup(); |
e3043162 | 1595 | #endif |
888c6216 | 1596 | hostname_setup(); |
489388fb | 1597 | machine_id_setup(NULL); |
888c6216 | 1598 | loopback_setup(); |
490aed58 | 1599 | |
6ee5bbf8 | 1600 | test_mtab(); |
80758717 | 1601 | test_usr(); |
af5bc85d | 1602 | } |
302e8c4c | 1603 | |
67445f4e | 1604 | if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) |
e96d6be7 LP |
1605 | watchdog_set_timeout(&arg_runtime_watchdog); |
1606 | ||
aa0f64ac LP |
1607 | if (arg_timer_slack_nsec != (nsec_t) -1) |
1608 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) | |
1609 | log_error("Failed to adjust timer slack: %m"); | |
1610 | ||
ec8927ca | 1611 | if (arg_capability_bounding_set_drop) { |
31c885e9 | 1612 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
ec8927ca | 1613 | if (r < 0) { |
31c885e9 | 1614 | log_error("Failed to drop capability bounding set of usermode helpers: %s", strerror(-r)); |
ec8927ca LP |
1615 | goto finish; |
1616 | } | |
31c885e9 | 1617 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); |
939b8f14 | 1618 | if (r < 0) { |
31c885e9 | 1619 | log_error("Failed to drop capability bounding set: %s", strerror(-r)); |
939b8f14 LP |
1620 | goto finish; |
1621 | } | |
ec8927ca LP |
1622 | } |
1623 | ||
d3b1c508 LP |
1624 | if (arg_syscall_archs) { |
1625 | r = enforce_syscall_archs(arg_syscall_archs); | |
1626 | if (r < 0) | |
1627 | goto finish; | |
1628 | } | |
1629 | ||
67445f4e | 1630 | if (arg_running_as == SYSTEMD_USER) { |
d4447f4d | 1631 | /* Become reaper of our children */ |
8b8ffe68 LP |
1632 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { |
1633 | log_warning("Failed to make us a subreaper: %m"); | |
1634 | if (errno == EINVAL) | |
ddfa5101 | 1635 | log_info("Perhaps the kernel version is too old (< 3.4?)"); |
8b8ffe68 | 1636 | } |
d4447f4d AK |
1637 | } |
1638 | ||
5f5c2f38 | 1639 | if (arg_running_as == SYSTEMD_SYSTEM) { |
4096d6f5 LP |
1640 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1641 | ||
5f5c2f38 LP |
1642 | if (empty_etc) { |
1643 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_FULL, false, NULL, 0); | |
1644 | if (r < 0) | |
1645 | log_warning("Failed to populate /etc with preset unit settings, ignoring: %s", strerror(-r)); | |
1646 | else | |
1647 | log_info("Populated /etc with preset unit settings."); | |
1648 | } | |
1649 | } | |
1650 | ||
0d8c31ff | 1651 | r = manager_new(arg_running_as, arg_action == ACTION_TEST, &m); |
e96d6be7 | 1652 | if (r < 0) { |
8e274523 | 1653 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1654 | goto finish; |
1655 | } | |
1656 | ||
9e58ff9c | 1657 | m->confirm_spawn = arg_confirm_spawn; |
bd8f585b | 1658 | m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; |
0a494f1f LP |
1659 | m->default_std_output = arg_default_std_output; |
1660 | m->default_std_error = arg_default_std_error; | |
1f19a534 OS |
1661 | m->default_restart_usec = arg_default_restart_usec; |
1662 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
1663 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
3f41e1e5 LN |
1664 | m->default_start_limit_interval = arg_default_start_limit_interval; |
1665 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
085afe36 LP |
1666 | m->default_cpu_accounting = arg_default_cpu_accounting; |
1667 | m->default_blockio_accounting = arg_default_blockio_accounting; | |
1668 | m->default_memory_accounting = arg_default_memory_accounting; | |
e96d6be7 LP |
1669 | m->runtime_watchdog = arg_runtime_watchdog; |
1670 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
c3a170f3 HH |
1671 | m->userspace_timestamp = userspace_timestamp; |
1672 | m->kernel_timestamp = kernel_timestamp; | |
c3a170f3 | 1673 | m->initrd_timestamp = initrd_timestamp; |
c2e0d600 TA |
1674 | m->security_start_timestamp = security_start_timestamp; |
1675 | m->security_finish_timestamp = security_finish_timestamp; | |
9e58ff9c | 1676 | |
c93ff2e9 | 1677 | manager_set_default_rlimits(m, arg_default_rlimit); |
b6e2f329 | 1678 | manager_environment_add(m, NULL, arg_default_environment); |
27d340c7 | 1679 | manager_set_show_status(m, arg_show_status); |
e2680723 | 1680 | manager_set_first_boot(m, empty_etc); |
27d340c7 | 1681 | |
bf4df7c3 | 1682 | /* Remember whether we should queue the default job */ |
d3b1c508 | 1683 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 1684 | |
9d76d730 LP |
1685 | before_startup = now(CLOCK_MONOTONIC); |
1686 | ||
d3b1c508 | 1687 | r = manager_startup(m, arg_serialization, fds); |
e96d6be7 | 1688 | if (r < 0) |
6e2ef85b | 1689 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 | 1690 | |
bf4df7c3 LP |
1691 | /* This will close all file descriptors that were opened, but |
1692 | * not claimed by any unit. */ | |
01e10de3 | 1693 | fdset_free(fds); |
6c081276 | 1694 | fds = NULL; |
f50e0a01 | 1695 | |
d3b1c508 LP |
1696 | if (arg_serialization) { |
1697 | fclose(arg_serialization); | |
1698 | arg_serialization = NULL; | |
bf4df7c3 LP |
1699 | } |
1700 | ||
1701 | if (queue_default_job) { | |
718db961 | 1702 | _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL; |
1c27d3f3 | 1703 | Unit *target = NULL; |
bacbccb7 | 1704 | Job *default_unit_job; |
398ef8ba | 1705 | |
fa0f4d8a | 1706 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1707 | |
e96d6be7 | 1708 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
718db961 LP |
1709 | if (r < 0) |
1710 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1711 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
ac155bb8 MS |
1712 | log_error("Failed to load default target: %s", strerror(-target->load_error)); |
1713 | else if (target->load_state == UNIT_MASKED) | |
6daf4f90 | 1714 | log_error("Default target masked."); |
27b14a22 | 1715 | |
ac155bb8 | 1716 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1717 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1718 | |
e96d6be7 LP |
1719 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1720 | if (r < 0) { | |
718db961 | 1721 | log_error("Failed to load rescue target: %s", bus_error_message(&error, r)); |
a16e1123 | 1722 | goto finish; |
11ddb6f4 | 1723 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
ac155bb8 | 1724 | log_error("Failed to load rescue target: %s", strerror(-target->load_error)); |
1c27d3f3 | 1725 | goto finish; |
ac155bb8 | 1726 | } else if (target->load_state == UNIT_MASKED) { |
6daf4f90 | 1727 | log_error("Rescue target masked."); |
00dc5d76 | 1728 | goto finish; |
a16e1123 LP |
1729 | } |
1730 | } | |
37d88da7 | 1731 | |
ac155bb8 | 1732 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1733 | |
fa0f4d8a | 1734 | if (arg_action == ACTION_TEST) { |
40d50879 | 1735 | printf("-> By units:\n"); |
a16e1123 LP |
1736 | manager_dump_units(m, stdout, "\t"); |
1737 | } | |
1738 | ||
95f1b47d | 1739 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); |
ab17a050 | 1740 | if (r == -EPERM) { |
718db961 | 1741 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
ab17a050 LP |
1742 | |
1743 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); | |
1744 | if (r < 0) { | |
718db961 | 1745 | log_error("Failed to start default target: %s", bus_error_message(&error, r)); |
ab17a050 LP |
1746 | goto finish; |
1747 | } | |
1748 | } else if (r < 0) { | |
718db961 | 1749 | log_error("Failed to isolate default target: %s", bus_error_message(&error, r)); |
37d88da7 LP |
1750 | goto finish; |
1751 | } | |
ab17a050 | 1752 | |
bacbccb7 | 1753 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1754 | |
07672f49 LP |
1755 | after_startup = now(CLOCK_MONOTONIC); |
1756 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1757 | "Loaded units and determined initial transaction in %s.", | |
2fa4092c | 1758 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 0)); |
07672f49 | 1759 | |
fa0f4d8a | 1760 | if (arg_action == ACTION_TEST) { |
40d50879 | 1761 | printf("-> By jobs:\n"); |
a16e1123 | 1762 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1763 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1764 | goto finish; |
1765 | } | |
e965d56d | 1766 | } |
d46de8a1 | 1767 | |
a16e1123 | 1768 | for (;;) { |
e96d6be7 LP |
1769 | r = manager_loop(m); |
1770 | if (r < 0) { | |
a16e1123 LP |
1771 | log_error("Failed to run mainloop: %s", strerror(-r)); |
1772 | goto finish; | |
1773 | } | |
11dd41ce | 1774 | |
a16e1123 | 1775 | switch (m->exit_code) { |
e965d56d | 1776 | |
a16e1123 | 1777 | case MANAGER_EXIT: |
22f4096c | 1778 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1779 | log_debug("Exit."); |
1780 | goto finish; | |
e965d56d | 1781 | |
a16e1123 | 1782 | case MANAGER_RELOAD: |
e015090f | 1783 | log_info("Reloading."); |
e96d6be7 LP |
1784 | r = manager_reload(m); |
1785 | if (r < 0) | |
a16e1123 LP |
1786 | log_error("Failed to reload: %s", strerror(-r)); |
1787 | break; | |
cea8e32e | 1788 | |
a16e1123 | 1789 | case MANAGER_REEXECUTE: |
664f88a7 | 1790 | |
d3b1c508 | 1791 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) |
a16e1123 | 1792 | goto finish; |
60918275 | 1793 | |
a16e1123 | 1794 | reexecute = true; |
e015090f | 1795 | log_notice("Reexecuting."); |
a16e1123 LP |
1796 | goto finish; |
1797 | ||
664f88a7 LP |
1798 | case MANAGER_SWITCH_ROOT: |
1799 | /* Steal the switch root parameters */ | |
41669317 | 1800 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1801 | switch_root_init = m->switch_root_init; |
1802 | m->switch_root = m->switch_root_init = NULL; | |
1803 | ||
1804 | if (!switch_root_init) | |
d3b1c508 | 1805 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) |
664f88a7 LP |
1806 | goto finish; |
1807 | ||
1808 | reexecute = true; | |
1809 | log_notice("Switching root."); | |
1810 | goto finish; | |
1811 | ||
b9080b03 FF |
1812 | case MANAGER_REBOOT: |
1813 | case MANAGER_POWEROFF: | |
1814 | case MANAGER_HALT: | |
1815 | case MANAGER_KEXEC: { | |
1816 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1817 | [MANAGER_REBOOT] = "reboot", | |
1818 | [MANAGER_POWEROFF] = "poweroff", | |
1819 | [MANAGER_HALT] = "halt", | |
1820 | [MANAGER_KEXEC] = "kexec" | |
1821 | }; | |
1822 | ||
1823 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1824 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1825 | |
1826 | log_notice("Shutting down."); | |
1827 | goto finish; | |
1828 | } | |
1829 | ||
a16e1123 LP |
1830 | default: |
1831 | assert_not_reached("Unknown exit code."); | |
1832 | } | |
1833 | } | |
f170852a | 1834 | |
60918275 | 1835 | finish: |
b87c2aa6 ZJS |
1836 | pager_close(); |
1837 | ||
d3b1c508 | 1838 | if (m) { |
60918275 | 1839 | manager_free(m); |
d3b1c508 LP |
1840 | m = NULL; |
1841 | } | |
60918275 | 1842 | |
d3b1c508 | 1843 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) { |
4096d6f5 | 1844 | free(arg_default_rlimit[j]); |
d3b1c508 LP |
1845 | arg_default_rlimit[j] = NULL; |
1846 | } | |
c93ff2e9 | 1847 | |
fa0f4d8a | 1848 | free(arg_default_unit); |
d3b1c508 LP |
1849 | arg_default_unit = NULL; |
1850 | ||
0c85a4f3 | 1851 | free_join_controllers(); |
b9cd2ec1 | 1852 | |
d3b1c508 LP |
1853 | strv_free(arg_default_environment); |
1854 | arg_default_environment = NULL; | |
1855 | ||
1856 | set_free(arg_syscall_archs); | |
1857 | arg_syscall_archs = NULL; | |
1858 | ||
b2bb3dbe LP |
1859 | label_finish(); |
1860 | ||
a16e1123 | 1861 | if (reexecute) { |
664f88a7 | 1862 | const char **args; |
e564a982 | 1863 | unsigned i, args_size; |
9bfcda95 | 1864 | sigset_t ss; |
a16e1123 | 1865 | |
664f88a7 LP |
1866 | /* Close and disarm the watchdog, so that the new |
1867 | * instance can reinitialize it, but doesn't get | |
1868 | * rebooted while we do that */ | |
1869 | watchdog_close(true); | |
a16e1123 | 1870 | |
4096d6f5 LP |
1871 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1872 | * that the new systemd can pass the kernel default to | |
1873 | * its child processes */ | |
1874 | if (saved_rlimit_nofile.rlim_cur > 0) | |
1875 | setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); | |
1876 | ||
41669317 | 1877 | if (switch_root_dir) { |
cee530bb LP |
1878 | /* Kill all remaining processes from the |
1879 | * initrd, but don't wait for them, so that we | |
1880 | * can handle the SIGCHLD for them after | |
1881 | * deserializing. */ | |
0bee65f0 | 1882 | broadcast_signal(SIGTERM, false, true); |
bd3fa1d2 LP |
1883 | |
1884 | /* And switch root */ | |
41669317 LP |
1885 | r = switch_root(switch_root_dir); |
1886 | if (r < 0) | |
1887 | log_error("Failed to switch root, ignoring: %s", strerror(-r)); | |
1888 | } | |
a16e1123 | 1889 | |
d03bc1b8 | 1890 | args_size = MAX(6, argc+1); |
e564a982 | 1891 | args = newa(const char*, args_size); |
a16e1123 | 1892 | |
664f88a7 LP |
1893 | if (!switch_root_init) { |
1894 | char sfd[16]; | |
a16e1123 | 1895 | |
664f88a7 LP |
1896 | /* First try to spawn ourselves with the right |
1897 | * path, and with full serialization. We do | |
1898 | * this only if the user didn't specify an | |
1899 | * explicit init to spawn. */ | |
edb9aaa8 | 1900 | |
d3b1c508 | 1901 | assert(arg_serialization); |
664f88a7 | 1902 | assert(fds); |
edb9aaa8 | 1903 | |
d3b1c508 | 1904 | snprintf(sfd, sizeof(sfd), "%i", fileno(arg_serialization)); |
664f88a7 | 1905 | char_array_0(sfd); |
edb9aaa8 | 1906 | |
664f88a7 LP |
1907 | i = 0; |
1908 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1909 | if (switch_root_dir) |
2660882b | 1910 | args[i++] = "--switched-root"; |
67445f4e | 1911 | args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user"; |
664f88a7 LP |
1912 | args[i++] = "--deserialize"; |
1913 | args[i++] = sfd; | |
1914 | args[i++] = NULL; | |
edb9aaa8 | 1915 | |
ce8aba56 KS |
1916 | /* do not pass along the environment we inherit from the kernel or initrd */ |
1917 | if (switch_root_dir) | |
1918 | clearenv(); | |
1919 | ||
e564a982 | 1920 | assert(i <= args_size); |
664f88a7 LP |
1921 | execv(args[0], (char* const*) args); |
1922 | } | |
6e98720f | 1923 | |
664f88a7 LP |
1924 | /* Try the fallback, if there is any, without any |
1925 | * serialization. We pass the original argv[] and | |
1926 | * envp[]. (Well, modulo the ordering changes due to | |
1927 | * getopt() in argv[], and some cleanups in envp[], | |
1928 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1929 | |
d3b1c508 LP |
1930 | if (arg_serialization) { |
1931 | fclose(arg_serialization); | |
1932 | arg_serialization = NULL; | |
b8f83232 | 1933 | } |
a16e1123 | 1934 | |
b8f83232 | 1935 | if (fds) { |
664f88a7 | 1936 | fdset_free(fds); |
b8f83232 LP |
1937 | fds = NULL; |
1938 | } | |
a16e1123 | 1939 | |
a504223d HH |
1940 | /* Reopen the console */ |
1941 | make_console_stdio(); | |
1942 | ||
d3b1c508 | 1943 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
664f88a7 | 1944 | args[i++] = argv[j]; |
a16e1123 | 1945 | args[i++] = NULL; |
e564a982 | 1946 | assert(i <= args_size); |
b8f83232 | 1947 | |
5a85ca1c RO |
1948 | /* reenable any blocked signals, especially important |
1949 | * if we switch from initial ramdisk to init=... */ | |
9bfcda95 LP |
1950 | reset_all_signal_handlers(); |
1951 | ||
1952 | assert_se(sigemptyset(&ss) == 0); | |
1953 | assert_se(sigprocmask(SIG_SETMASK, &ss, NULL) == 0); | |
5a85ca1c | 1954 | |
b8f83232 LP |
1955 | if (switch_root_init) { |
1956 | args[0] = switch_root_init; | |
1957 | execv(args[0], (char* const*) args); | |
1958 | log_warning("Failed to execute configured init, trying fallback: %m"); | |
1959 | } | |
1960 | ||
1961 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1962 | execv(args[0], (char* const*) args); |
1963 | ||
745e2fb7 KS |
1964 | if (errno == ENOENT) { |
1965 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 1966 | |
745e2fb7 KS |
1967 | args[0] = "/bin/sh"; |
1968 | args[1] = NULL; | |
1969 | execv(args[0], (char* const*) args); | |
1970 | log_error("Failed to execute /bin/sh, giving up: %m"); | |
1971 | } else | |
1972 | log_warning("Failed to execute /sbin/init, giving up: %m"); | |
a16e1123 LP |
1973 | } |
1974 | ||
d3b1c508 LP |
1975 | if (arg_serialization) { |
1976 | fclose(arg_serialization); | |
1977 | arg_serialization = NULL; | |
1978 | } | |
a16e1123 | 1979 | |
d3b1c508 | 1980 | if (fds) { |
a16e1123 | 1981 | fdset_free(fds); |
d3b1c508 LP |
1982 | fds = NULL; |
1983 | } | |
a16e1123 | 1984 | |
54b434b1 LP |
1985 | #ifdef HAVE_VALGRIND_VALGRIND_H |
1986 | /* If we are PID 1 and running under valgrind, then let's exit | |
1987 | * here explicitly. valgrind will only generate nice output on | |
1988 | * exit(), not on exec(), hence let's do the former not the | |
1989 | * latter here. */ | |
1990 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
1991 | return 0; | |
1992 | #endif | |
1993 | ||
b9080b03 | 1994 | if (shutdown_verb) { |
b1e90ec5 ZJS |
1995 | char log_level[DECIMAL_STR_MAX(int) + 1]; |
1996 | const char* command_line[9] = { | |
b9080b03 FF |
1997 | SYSTEMD_SHUTDOWN_BINARY_PATH, |
1998 | shutdown_verb, | |
b1e90ec5 ZJS |
1999 | "--log-level", log_level, |
2000 | "--log-target", | |
b9080b03 | 2001 | }; |
b1e90ec5 | 2002 | unsigned pos = 5; |
e3e45d4f | 2003 | _cleanup_strv_free_ char **env_block = NULL; |
15bd5aee LP |
2004 | |
2005 | assert(command_line[pos] == NULL); | |
e3e45d4f | 2006 | env_block = strv_copy(environ); |
b9080b03 | 2007 | |
b1e90ec5 ZJS |
2008 | snprintf(log_level, sizeof(log_level), "%d", log_get_max_level()); |
2009 | ||
2010 | switch (log_get_target()) { | |
2011 | case LOG_TARGET_KMSG: | |
2012 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
2013 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
2014 | command_line[pos++] = "kmsg"; | |
2015 | break; | |
2016 | ||
2017 | case LOG_TARGET_CONSOLE: | |
2018 | default: | |
2019 | command_line[pos++] = "console"; | |
2020 | break; | |
2021 | }; | |
2022 | ||
2023 | if (log_get_show_color()) | |
2024 | command_line[pos++] = "--log-color"; | |
2025 | ||
2026 | if (log_get_show_location()) | |
2027 | command_line[pos++] = "--log-location"; | |
2028 | ||
26abdc73 | 2029 | assert(pos < ELEMENTSOF(command_line)); |
b1e90ec5 | 2030 | |
e96d6be7 | 2031 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
e3e45d4f | 2032 | char *e; |
d18f337c | 2033 | |
e96d6be7 LP |
2034 | /* If we reboot let's set the shutdown |
2035 | * watchdog and tell the shutdown binary to | |
2036 | * repeatedly ping it */ | |
2037 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
2038 | watchdog_close(false); | |
2039 | ||
e3e45d4f SP |
2040 | /* Tell the binary how often to ping, ignore failure */ |
2041 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
2042 | strv_push(&env_block, e); | |
2043 | } else | |
e96d6be7 LP |
2044 | watchdog_close(true); |
2045 | ||
66713f77 LP |
2046 | /* Avoid the creation of new processes forked by the |
2047 | * kernel; at this point, we will not listen to the | |
2048 | * signals anyway */ | |
2049 | if (detect_container(NULL) <= 0) | |
2050 | cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); | |
ad929bcc | 2051 | |
d18f337c | 2052 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
b1e90ec5 ZJS |
2053 | log_error("Failed to execute shutdown binary, %s: %m", |
2054 | getpid() == 1 ? "freezing" : "quitting"); | |
b9080b03 FF |
2055 | } |
2056 | ||
c3b3c274 LP |
2057 | if (getpid() == 1) |
2058 | freeze(); | |
2059 | ||
60918275 LP |
2060 | return retval; |
2061 | } |