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Commit | Line | Data |
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a7334b09 LP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2010 Lennart Poettering | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
7 | under the terms of the GNU Lesser General Public License as published by |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
9 | (at your option) any later version. |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 14 | Lesser General Public License for more details. |
a7334b09 | 15 | |
5430f7f2 | 16 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
18 | ***/ | |
19 | ||
60918275 | 20 | #include <errno.h> |
3dfc9763 | 21 | #include <fcntl.h> |
f170852a | 22 | #include <getopt.h> |
97c4f35c | 23 | #include <signal.h> |
3dfc9763 LP |
24 | #include <stdio.h> |
25 | #include <string.h> | |
664f88a7 | 26 | #include <sys/mount.h> |
3dfc9763 | 27 | #include <sys/prctl.h> |
b9e74c39 | 28 | #include <sys/reboot.h> |
3dfc9763 LP |
29 | #include <sys/stat.h> |
30 | #include <unistd.h> | |
b64a3d86 LP |
31 | #ifdef HAVE_SECCOMP |
32 | #include <seccomp.h> | |
33 | #endif | |
3dfc9763 LP |
34 | #ifdef HAVE_VALGRIND_VALGRIND_H |
35 | #include <valgrind/valgrind.h> | |
36 | #endif | |
54b434b1 | 37 | |
718db961 | 38 | #include "sd-bus.h" |
cf0fbc49 | 39 | #include "sd-daemon.h" |
3dfc9763 | 40 | |
b5efdb8a | 41 | #include "alloc-util.h" |
d9d93745 | 42 | #include "architecture.h" |
3dfc9763 LP |
43 | #include "build.h" |
44 | #include "bus-error.h" | |
45 | #include "bus-util.h" | |
430f0182 | 46 | #include "capability-util.h" |
24efb112 | 47 | #include "clock-util.h" |
3dfc9763 | 48 | #include "conf-parser.h" |
618234a5 | 49 | #include "cpu-set-util.h" |
3dfc9763 LP |
50 | #include "dbus-manager.h" |
51 | #include "def.h" | |
52 | #include "env-util.h" | |
3ffd4af2 | 53 | #include "fd-util.h" |
3dfc9763 | 54 | #include "fdset.h" |
718db961 | 55 | #include "fileio.h" |
24882e06 | 56 | #include "formats-util.h" |
f4f15635 | 57 | #include "fs-util.h" |
3dfc9763 LP |
58 | #include "hostname-setup.h" |
59 | #include "ima-setup.h" | |
60 | #include "killall.h" | |
61 | #include "kmod-setup.h" | |
d7b8eec7 | 62 | #include "load-fragment.h" |
3dfc9763 | 63 | #include "log.h" |
b6e66135 | 64 | #include "loopback-setup.h" |
b6e66135 | 65 | #include "machine-id-setup.h" |
3dfc9763 LP |
66 | #include "manager.h" |
67 | #include "missing.h" | |
68 | #include "mount-setup.h" | |
69 | #include "pager.h" | |
6bedfcbb | 70 | #include "parse-util.h" |
4e731273 | 71 | #include "proc-cmdline.h" |
3dfc9763 | 72 | #include "process-util.h" |
8869a0b4 | 73 | #include "raw-clone.h" |
78f22b97 | 74 | #include "rlimit-util.h" |
b6e66135 | 75 | #include "selinux-setup.h" |
3dfc9763 LP |
76 | #include "selinux-util.h" |
77 | #include "signal-util.h" | |
ffbd2c4d | 78 | #include "smack-setup.h" |
3dfc9763 | 79 | #include "special.h" |
8fcde012 | 80 | #include "stat-util.h" |
15a5e950 | 81 | #include "stdio-util.h" |
3dfc9763 LP |
82 | #include "strv.h" |
83 | #include "switch-root.h" | |
84 | #include "terminal-util.h" | |
8612da97 | 85 | #include "umask-util.h" |
b1d4f8e1 | 86 | #include "user-util.h" |
3dfc9763 LP |
87 | #include "virt.h" |
88 | #include "watchdog.h" | |
b6e66135 | 89 | |
f170852a LP |
90 | static enum { |
91 | ACTION_RUN, | |
e965d56d | 92 | ACTION_HELP, |
9ba0bc4e | 93 | ACTION_VERSION, |
e537352b | 94 | ACTION_TEST, |
4288f619 LP |
95 | ACTION_DUMP_CONFIGURATION_ITEMS, |
96 | ACTION_DONE | |
fa0f4d8a | 97 | } arg_action = ACTION_RUN; |
fa0f4d8a | 98 | static char *arg_default_unit = NULL; |
463d0d15 | 99 | static bool arg_system = false; |
fa0f4d8a | 100 | static bool arg_dump_core = true; |
fa0f4d8a | 101 | static int arg_crash_chvt = -1; |
b9e74c39 LP |
102 | static bool arg_crash_shell = false; |
103 | static bool arg_crash_reboot = false; | |
fa0f4d8a | 104 | static bool arg_confirm_spawn = false; |
b6e2f329 | 105 | static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; |
bf4df7c3 | 106 | static bool arg_switched_root = false; |
ea4b98e6 | 107 | static bool arg_no_pager = false; |
0c85a4f3 | 108 | static char ***arg_join_controllers = NULL; |
706343f4 | 109 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 110 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
1f19a534 OS |
111 | static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; |
112 | static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; | |
113 | static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
3f41e1e5 LN |
114 | static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; |
115 | static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; | |
e96d6be7 LP |
116 | static usec_t arg_runtime_watchdog = 0; |
117 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
97d0e5f8 | 118 | static char **arg_default_environment = NULL; |
517d56b1 | 119 | static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; |
a103496c | 120 | static uint64_t arg_capability_bounding_set = CAP_ALL; |
3a43da28 | 121 | static nsec_t arg_timer_slack_nsec = NSEC_INFINITY; |
bd8f585b | 122 | static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; |
d3b1c508 LP |
123 | static Set* arg_syscall_archs = NULL; |
124 | static FILE* arg_serialization = NULL; | |
085afe36 | 125 | static bool arg_default_cpu_accounting = false; |
13c31542 | 126 | static bool arg_default_io_accounting = false; |
085afe36 LP |
127 | static bool arg_default_blockio_accounting = false; |
128 | static bool arg_default_memory_accounting = false; | |
9ded9cd1 LP |
129 | static bool arg_default_tasks_accounting = true; |
130 | static uint64_t arg_default_tasks_max = UINT64_C(512); | |
ee48dbd5 | 131 | static sd_id128_t arg_machine_id = {}; |
4fc935ca | 132 | |
b9e74c39 LP |
133 | noreturn static void freeze_or_reboot(void) { |
134 | ||
135 | if (arg_crash_reboot) { | |
136 | log_notice("Rebooting in 10s..."); | |
137 | (void) sleep(10); | |
138 | ||
139 | log_notice("Rebooting now..."); | |
140 | (void) reboot(RB_AUTOBOOT); | |
141 | log_emergency_errno(errno, "Failed to reboot: %m"); | |
142 | } | |
143 | ||
144 | log_emergency("Freezing execution."); | |
145 | freeze(); | |
146 | } | |
147 | ||
919ce0b7 | 148 | noreturn static void crash(int sig) { |
7d06dad9 MS |
149 | struct sigaction sa; |
150 | pid_t pid; | |
97c4f35c | 151 | |
abb26902 LP |
152 | if (getpid() != 1) |
153 | /* Pass this on immediately, if this is not PID 1 */ | |
92ca4cac | 154 | (void) raise(sig); |
abb26902 | 155 | else if (!arg_dump_core) |
4104970e | 156 | log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 157 | else { |
7d06dad9 | 158 | sa = (struct sigaction) { |
189d5bac | 159 | .sa_handler = nop_signal_handler, |
b92bea5d ZJS |
160 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, |
161 | }; | |
97c4f35c | 162 | |
6f5e3f35 | 163 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
92ca4cac | 164 | (void) sigaction(SIGCHLD, &sa, NULL); |
6f5e3f35 | 165 | |
8869a0b4 | 166 | pid = raw_clone(SIGCHLD); |
e62d8c39 | 167 | if (pid < 0) |
56f64d95 | 168 | log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
97c4f35c | 169 | else if (pid == 0) { |
97c4f35c | 170 | /* Enable default signal handler for core dump */ |
15a90032 | 171 | |
92ca4cac LP |
172 | sa = (struct sigaction) { |
173 | .sa_handler = SIG_DFL, | |
174 | }; | |
175 | (void) sigaction(sig, &sa, NULL); | |
97c4f35c | 176 | |
15a90032 LP |
177 | /* Don't limit the coredump size */ |
178 | (void) setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)); | |
97c4f35c LP |
179 | |
180 | /* Just to be sure... */ | |
e62d9b81 | 181 | (void) chdir("/"); |
97c4f35c LP |
182 | |
183 | /* Raise the signal again */ | |
ee05e779 | 184 | pid = raw_getpid(); |
92ca4cac | 185 | (void) kill(pid, sig); /* raise() would kill the parent */ |
97c4f35c LP |
186 | |
187 | assert_not_reached("We shouldn't be here..."); | |
92ca4cac | 188 | _exit(EXIT_FAILURE); |
4fc935ca | 189 | } else { |
8e12a6ae LP |
190 | siginfo_t status; |
191 | int r; | |
4fc935ca LP |
192 | |
193 | /* Order things nicely. */ | |
e62d8c39 ZJS |
194 | r = wait_for_terminate(pid, &status); |
195 | if (r < 0) | |
da927ba9 | 196 | log_emergency_errno(r, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig)); |
8e12a6ae | 197 | else if (status.si_code != CLD_DUMPED) |
ee05e779 ZJS |
198 | log_emergency("Caught <%s>, core dump failed (child "PID_FMT", code=%s, status=%i/%s).", |
199 | signal_to_string(sig), | |
200 | pid, sigchld_code_to_string(status.si_code), | |
201 | status.si_status, | |
202 | strna(status.si_code == CLD_EXITED | |
203 | ? exit_status_to_string(status.si_status, EXIT_STATUS_FULL) | |
204 | : signal_to_string(status.si_status))); | |
4fc935ca | 205 | else |
4104970e | 206 | log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
97c4f35c LP |
207 | } |
208 | } | |
209 | ||
b9e74c39 | 210 | if (arg_crash_chvt >= 0) |
92ca4cac | 211 | (void) chvt(arg_crash_chvt); |
601f6a1e | 212 | |
7d06dad9 MS |
213 | sa = (struct sigaction) { |
214 | .sa_handler = SIG_IGN, | |
215 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
216 | }; | |
217 | ||
218 | /* Let the kernel reap children for us */ | |
219 | (void) sigaction(SIGCHLD, &sa, NULL); | |
8c43883a | 220 | |
7d06dad9 | 221 | if (arg_crash_shell) { |
b9e74c39 | 222 | log_notice("Executing crash shell in 10s..."); |
92ca4cac | 223 | (void) sleep(10); |
4fc935ca | 224 | |
8869a0b4 | 225 | pid = raw_clone(SIGCHLD); |
cd3bd60a | 226 | if (pid < 0) |
56f64d95 | 227 | log_emergency_errno(errno, "Failed to fork off crash shell: %m"); |
6f5e3f35 | 228 | else if (pid == 0) { |
b9e74c39 | 229 | (void) setsid(); |
92ca4cac LP |
230 | (void) make_console_stdio(); |
231 | (void) execle("/bin/sh", "/bin/sh", NULL, environ); | |
6f5e3f35 | 232 | |
ee05e779 | 233 | log_emergency_errno(errno, "execle() failed: %m"); |
92ca4cac | 234 | _exit(EXIT_FAILURE); |
b9e74c39 LP |
235 | } else { |
236 | log_info("Spawned crash shell as PID "PID_FMT".", pid); | |
4cf0b03b | 237 | (void) wait_for_terminate(pid, NULL); |
b9e74c39 | 238 | } |
4fc935ca LP |
239 | } |
240 | ||
b9e74c39 | 241 | freeze_or_reboot(); |
97c4f35c LP |
242 | } |
243 | ||
244 | static void install_crash_handler(void) { | |
297d563d | 245 | static const struct sigaction sa = { |
b92bea5d | 246 | .sa_handler = crash, |
297d563d | 247 | .sa_flags = SA_NODEFER, /* So that we can raise the signal again from the signal handler */ |
b92bea5d | 248 | }; |
297d563d | 249 | int r; |
97c4f35c | 250 | |
297d563d LP |
251 | /* We ignore the return value here, since, we don't mind if we |
252 | * cannot set up a crash handler */ | |
253 | r = sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); | |
254 | if (r < 0) | |
255 | log_debug_errno(r, "I had trouble setting up the crash handler, ignoring: %m"); | |
97c4f35c | 256 | } |
f170852a | 257 | |
56d96fc0 LP |
258 | static int console_setup(void) { |
259 | _cleanup_close_ int tty_fd = -1; | |
260 | int r; | |
80876c20 | 261 | |
512947d4 | 262 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
23bbb0de MS |
263 | if (tty_fd < 0) |
264 | return log_error_errno(tty_fd, "Failed to open /dev/console: %m"); | |
80876c20 | 265 | |
56d96fc0 LP |
266 | /* We don't want to force text mode. plymouth may be showing |
267 | * pictures already from initrd. */ | |
512947d4 | 268 | r = reset_terminal_fd(tty_fd, false); |
23bbb0de MS |
269 | if (r < 0) |
270 | return log_error_errno(r, "Failed to reset /dev/console: %m"); | |
843d2643 | 271 | |
56d96fc0 | 272 | return 0; |
80876c20 LP |
273 | } |
274 | ||
b9e74c39 LP |
275 | static int parse_crash_chvt(const char *value) { |
276 | int b; | |
277 | ||
278 | if (safe_atoi(value, &arg_crash_chvt) >= 0) | |
279 | return 0; | |
280 | ||
281 | b = parse_boolean(value); | |
282 | if (b < 0) | |
283 | return b; | |
284 | ||
285 | if (b > 0) | |
286 | arg_crash_chvt = 0; /* switch to where kmsg goes */ | |
287 | else | |
288 | arg_crash_chvt = -1; /* turn off switching */ | |
289 | ||
290 | return 0; | |
291 | } | |
292 | ||
ee48dbd5 | 293 | static int set_machine_id(const char *m) { |
8b26cdbd | 294 | assert(m); |
ee48dbd5 NC |
295 | |
296 | if (sd_id128_from_string(m, &arg_machine_id) < 0) | |
297 | return -EINVAL; | |
298 | ||
299 | if (sd_id128_is_null(arg_machine_id)) | |
300 | return -EINVAL; | |
301 | ||
302 | return 0; | |
303 | } | |
304 | ||
059cb385 | 305 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
f170852a | 306 | |
059cb385 | 307 | int r; |
f170852a | 308 | |
059cb385 | 309 | assert(key); |
5192bd19 | 310 | |
059cb385 | 311 | if (streq(key, "systemd.unit") && value) { |
bf4df7c3 LP |
312 | |
313 | if (!in_initrd()) | |
e6e242ad | 314 | return free_and_strdup(&arg_default_unit, value); |
bf4df7c3 | 315 | |
059cb385 | 316 | } else if (streq(key, "rd.systemd.unit") && value) { |
bf4df7c3 | 317 | |
ca05941b | 318 | if (in_initrd()) |
e6e242ad | 319 | return free_and_strdup(&arg_default_unit, value); |
f170852a | 320 | |
059cb385 | 321 | } else if (streq(key, "systemd.dump_core") && value) { |
4fc935ca | 322 | |
059cb385 | 323 | r = parse_boolean(value); |
fb472900 | 324 | if (r < 0) |
059cb385 | 325 | log_warning("Failed to parse dump core switch %s. Ignoring.", value); |
4fc935ca | 326 | else |
fa0f4d8a | 327 | arg_dump_core = r; |
4fc935ca | 328 | |
b9e74c39 LP |
329 | } else if (streq(key, "systemd.crash_chvt") && value) { |
330 | ||
331 | if (parse_crash_chvt(value) < 0) | |
332 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); | |
333 | ||
059cb385 | 334 | } else if (streq(key, "systemd.crash_shell") && value) { |
4fc935ca | 335 | |
059cb385 | 336 | r = parse_boolean(value); |
fb472900 | 337 | if (r < 0) |
059cb385 | 338 | log_warning("Failed to parse crash shell switch %s. Ignoring.", value); |
4fc935ca | 339 | else |
fa0f4d8a | 340 | arg_crash_shell = r; |
5e7ee61c | 341 | |
b9e74c39 | 342 | } else if (streq(key, "systemd.crash_reboot") && value) { |
5e7ee61c | 343 | |
b9e74c39 LP |
344 | r = parse_boolean(value); |
345 | if (r < 0) | |
346 | log_warning("Failed to parse crash reboot switch %s. Ignoring.", value); | |
5e7ee61c | 347 | else |
b9e74c39 | 348 | arg_crash_reboot = r; |
5e7ee61c | 349 | |
059cb385 | 350 | } else if (streq(key, "systemd.confirm_spawn") && value) { |
601f6a1e | 351 | |
059cb385 LP |
352 | r = parse_boolean(value); |
353 | if (r < 0) | |
354 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); | |
601f6a1e | 355 | else |
059cb385 | 356 | arg_confirm_spawn = r; |
601f6a1e | 357 | |
059cb385 | 358 | } else if (streq(key, "systemd.show_status") && value) { |
9e58ff9c | 359 | |
059cb385 | 360 | r = parse_show_status(value, &arg_show_status); |
d450b6f2 | 361 | if (r < 0) |
059cb385 LP |
362 | log_warning("Failed to parse show status switch %s. Ignoring.", value); |
363 | ||
364 | } else if (streq(key, "systemd.default_standard_output") && value) { | |
0a494f1f | 365 | |
059cb385 | 366 | r = exec_output_from_string(value); |
fb472900 | 367 | if (r < 0) |
059cb385 | 368 | log_warning("Failed to parse default standard output switch %s. Ignoring.", value); |
0a494f1f LP |
369 | else |
370 | arg_default_std_output = r; | |
0a494f1f | 371 | |
059cb385 LP |
372 | } else if (streq(key, "systemd.default_standard_error") && value) { |
373 | ||
374 | r = exec_output_from_string(value); | |
fb472900 | 375 | if (r < 0) |
059cb385 | 376 | log_warning("Failed to parse default standard error switch %s. Ignoring.", value); |
0a494f1f LP |
377 | else |
378 | arg_default_std_error = r; | |
9e7c5357 | 379 | |
059cb385 LP |
380 | } else if (streq(key, "systemd.setenv") && value) { |
381 | ||
382 | if (env_assignment_is_valid(value)) { | |
e21fea24 KS |
383 | char **env; |
384 | ||
059cb385 | 385 | env = strv_env_set(arg_default_environment, value); |
e21fea24 KS |
386 | if (env) |
387 | arg_default_environment = env; | |
388 | else | |
279d3c9c | 389 | log_warning_errno(ENOMEM, "Setting environment variable '%s' failed, ignoring: %m", value); |
e21fea24 | 390 | } else |
059cb385 | 391 | log_warning("Environment variable name '%s' is not valid. Ignoring.", value); |
9e58ff9c | 392 | |
ee48dbd5 NC |
393 | } else if (streq(key, "systemd.machine_id") && value) { |
394 | ||
395 | r = set_machine_id(value); | |
396 | if (r < 0) | |
397 | log_warning("MachineID '%s' is not valid. Ignoring.", value); | |
398 | ||
059cb385 | 399 | } else if (streq(key, "quiet") && !value) { |
d7b15e0a | 400 | |
b6e2f329 | 401 | if (arg_show_status == _SHOW_STATUS_UNSET) |
d450b6f2 | 402 | arg_show_status = SHOW_STATUS_AUTO; |
059cb385 LP |
403 | |
404 | } else if (streq(key, "debug") && !value) { | |
d7b15e0a | 405 | |
1de1c9c3 LP |
406 | /* Note that log_parse_environment() handles 'debug' |
407 | * too, and sets the log level to LOG_DEBUG. */ | |
d7b15e0a | 408 | |
75f86906 | 409 | if (detect_container() > 0) |
b2103dcc | 410 | log_set_target(LOG_TARGET_CONSOLE); |
059cb385 LP |
411 | |
412 | } else if (!in_initrd() && !value) { | |
e2c9a131 | 413 | const char *target; |
f170852a LP |
414 | |
415 | /* SysV compatibility */ | |
e2c9a131 EV |
416 | target = runlevel_to_target(key); |
417 | if (target) | |
418 | return free_and_strdup(&arg_default_unit, target); | |
959718c6 TB |
419 | |
420 | } else if (streq(key, "systemd.default_timeout_start_sec") && value) { | |
421 | ||
422 | r = parse_sec(value, &arg_default_timeout_start_usec); | |
423 | if (r < 0) | |
424 | log_warning_errno(r, "Failed to parse default start timeout: %s, ignoring.", value); | |
425 | ||
426 | if (arg_default_timeout_start_usec <= 0) | |
427 | arg_default_timeout_start_usec = USEC_INFINITY; | |
f170852a LP |
428 | } |
429 | ||
430 | return 0; | |
431 | } | |
432 | ||
e8e581bf ZJS |
433 | #define DEFINE_SETTER(name, func, descr) \ |
434 | static int name(const char *unit, \ | |
435 | const char *filename, \ | |
436 | unsigned line, \ | |
437 | const char *section, \ | |
71a61510 | 438 | unsigned section_line, \ |
e8e581bf ZJS |
439 | const char *lvalue, \ |
440 | int ltype, \ | |
441 | const char *rvalue, \ | |
442 | void *data, \ | |
443 | void *userdata) { \ | |
444 | \ | |
445 | int r; \ | |
446 | \ | |
447 | assert(filename); \ | |
448 | assert(lvalue); \ | |
449 | assert(rvalue); \ | |
450 | \ | |
451 | r = func(rvalue); \ | |
452 | if (r < 0) \ | |
d1cefe0a LP |
453 | log_syntax(unit, LOG_ERR, filename, line, r, \ |
454 | "Invalid " descr "'%s': %m", \ | |
455 | rvalue); \ | |
e8e581bf ZJS |
456 | \ |
457 | return 0; \ | |
458 | } | |
487393e9 | 459 | |
e8e581bf ZJS |
460 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") |
461 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
462 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
463 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
487393e9 | 464 | |
4d7213b2 LP |
465 | static int config_parse_cpu_affinity2( |
466 | const char *unit, | |
467 | const char *filename, | |
468 | unsigned line, | |
469 | const char *section, | |
470 | unsigned section_line, | |
471 | const char *lvalue, | |
472 | int ltype, | |
473 | const char *rvalue, | |
474 | void *data, | |
475 | void *userdata) { | |
487393e9 | 476 | |
4b40bc38 | 477 | _cleanup_cpu_free_ cpu_set_t *c = NULL; |
f5c72b73 | 478 | int ncpus; |
487393e9 | 479 | |
765d143b | 480 | ncpus = parse_cpu_set_and_warn(rvalue, &c, unit, filename, line, lvalue); |
f5c72b73 FB |
481 | if (ncpus < 0) |
482 | return ncpus; | |
487393e9 | 483 | |
f5c72b73 FB |
484 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) |
485 | log_warning("Failed to set CPU affinity: %m"); | |
487393e9 | 486 | |
487393e9 LP |
487 | return 0; |
488 | } | |
489 | ||
4d7213b2 LP |
490 | static int config_parse_show_status( |
491 | const char* unit, | |
492 | const char *filename, | |
493 | unsigned line, | |
494 | const char *section, | |
495 | unsigned section_line, | |
496 | const char *lvalue, | |
497 | int ltype, | |
498 | const char *rvalue, | |
499 | void *data, | |
500 | void *userdata) { | |
501 | ||
502 | int k; | |
503 | ShowStatus *b = data; | |
504 | ||
505 | assert(filename); | |
506 | assert(lvalue); | |
507 | assert(rvalue); | |
508 | assert(data); | |
509 | ||
510 | k = parse_show_status(rvalue, b); | |
511 | if (k < 0) { | |
12ca818f | 512 | log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue); |
4d7213b2 LP |
513 | return 0; |
514 | } | |
515 | ||
516 | return 0; | |
517 | } | |
518 | ||
b9e74c39 LP |
519 | static int config_parse_crash_chvt( |
520 | const char* unit, | |
521 | const char *filename, | |
522 | unsigned line, | |
523 | const char *section, | |
524 | unsigned section_line, | |
525 | const char *lvalue, | |
526 | int ltype, | |
527 | const char *rvalue, | |
528 | void *data, | |
529 | void *userdata) { | |
530 | ||
531 | int r; | |
532 | ||
533 | assert(filename); | |
534 | assert(lvalue); | |
535 | assert(rvalue); | |
b9e74c39 LP |
536 | |
537 | r = parse_crash_chvt(rvalue); | |
538 | if (r < 0) { | |
539 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue); | |
540 | return 0; | |
541 | } | |
542 | ||
543 | return 0; | |
544 | } | |
545 | ||
e8e581bf ZJS |
546 | static int config_parse_join_controllers(const char *unit, |
547 | const char *filename, | |
548 | unsigned line, | |
549 | const char *section, | |
71a61510 | 550 | unsigned section_line, |
e8e581bf ZJS |
551 | const char *lvalue, |
552 | int ltype, | |
553 | const char *rvalue, | |
554 | void *data, | |
555 | void *userdata) { | |
0c85a4f3 | 556 | |
3875c85b | 557 | const char *whole_rvalue = rvalue; |
0c85a4f3 | 558 | unsigned n = 0; |
0c85a4f3 LP |
559 | |
560 | assert(filename); | |
561 | assert(lvalue); | |
562 | assert(rvalue); | |
563 | ||
fe382237 | 564 | arg_join_controllers = strv_free_free(arg_join_controllers); |
0c85a4f3 | 565 | |
d4ebeb4f FB |
566 | for (;;) { |
567 | _cleanup_free_ char *word = NULL; | |
568 | char **l; | |
569 | int r; | |
0c85a4f3 | 570 | |
d4ebeb4f | 571 | r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES); |
3875c85b FB |
572 | if (r < 0) { |
573 | log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue); | |
d4ebeb4f | 574 | return r; |
3875c85b | 575 | } |
d4ebeb4f FB |
576 | if (r == 0) |
577 | break; | |
0c85a4f3 | 578 | |
d4ebeb4f | 579 | l = strv_split(word, ","); |
1592ec21 | 580 | if (!l) |
aa8aeac0 | 581 | return log_oom(); |
0c85a4f3 LP |
582 | strv_uniq(l); |
583 | ||
584 | if (strv_length(l) <= 1) { | |
585 | strv_free(l); | |
586 | continue; | |
587 | } | |
588 | ||
589 | if (!arg_join_controllers) { | |
590 | arg_join_controllers = new(char**, 2); | |
591 | if (!arg_join_controllers) { | |
592 | strv_free(l); | |
14212119 | 593 | return log_oom(); |
0c85a4f3 LP |
594 | } |
595 | ||
596 | arg_join_controllers[0] = l; | |
597 | arg_join_controllers[1] = NULL; | |
598 | ||
599 | n = 1; | |
600 | } else { | |
601 | char ***a; | |
602 | char ***t; | |
603 | ||
604 | t = new0(char**, n+2); | |
605 | if (!t) { | |
606 | strv_free(l); | |
14212119 | 607 | return log_oom(); |
0c85a4f3 LP |
608 | } |
609 | ||
610 | n = 0; | |
611 | ||
612 | for (a = arg_join_controllers; *a; a++) { | |
613 | ||
614 | if (strv_overlap(*a, l)) { | |
e287086b | 615 | if (strv_extend_strv(&l, *a, false) < 0) { |
0c85a4f3 LP |
616 | strv_free(l); |
617 | strv_free_free(t); | |
14212119 | 618 | return log_oom(); |
0c85a4f3 LP |
619 | } |
620 | ||
0c85a4f3 LP |
621 | } else { |
622 | char **c; | |
623 | ||
624 | c = strv_copy(*a); | |
625 | if (!c) { | |
626 | strv_free(l); | |
627 | strv_free_free(t); | |
14212119 | 628 | return log_oom(); |
0c85a4f3 LP |
629 | } |
630 | ||
631 | t[n++] = c; | |
632 | } | |
633 | } | |
634 | ||
635 | t[n++] = strv_uniq(l); | |
636 | ||
637 | strv_free_free(arg_join_controllers); | |
638 | arg_join_controllers = t; | |
639 | } | |
640 | } | |
d4ebeb4f | 641 | if (!isempty(rvalue)) |
12ca818f | 642 | log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring."); |
0c85a4f3 LP |
643 | |
644 | return 0; | |
645 | } | |
646 | ||
487393e9 LP |
647 | static int parse_config_file(void) { |
648 | ||
f975e971 | 649 | const ConfigTableItem items[] = { |
d3b1c508 LP |
650 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
651 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
652 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
653 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
654 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
b9e74c39 LP |
655 | { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, NULL }, |
656 | { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, NULL }, | |
d3b1c508 | 657 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, |
b9e74c39 | 658 | { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot }, |
d3b1c508 | 659 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, |
d3b1c508 LP |
660 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, |
661 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
662 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
663 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
a103496c | 664 | { "Manager", "CapabilityBoundingSet", config_parse_capability_set, 0, &arg_capability_bounding_set }, |
89fffa27 | 665 | #ifdef HAVE_SECCOMP |
d3b1c508 | 666 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
89fffa27 | 667 | #endif |
d3b1c508 | 668 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
bd8f585b | 669 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, |
d3b1c508 LP |
670 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, |
671 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
672 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
673 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
674 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
f0367da7 LP |
675 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, /* obsolete alias */ |
676 | { "Manager", "DefaultStartLimitIntervalSec",config_parse_sec, 0, &arg_default_start_limit_interval }, | |
d3b1c508 LP |
677 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, |
678 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
d0a7c5f6 LP |
679 | { "Manager", "DefaultLimitCPU", config_parse_limit, RLIMIT_CPU, arg_default_rlimit }, |
680 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, RLIMIT_FSIZE, arg_default_rlimit }, | |
681 | { "Manager", "DefaultLimitDATA", config_parse_limit, RLIMIT_DATA, arg_default_rlimit }, | |
682 | { "Manager", "DefaultLimitSTACK", config_parse_limit, RLIMIT_STACK, arg_default_rlimit }, | |
683 | { "Manager", "DefaultLimitCORE", config_parse_limit, RLIMIT_CORE, arg_default_rlimit }, | |
684 | { "Manager", "DefaultLimitRSS", config_parse_limit, RLIMIT_RSS, arg_default_rlimit }, | |
685 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, RLIMIT_NOFILE, arg_default_rlimit }, | |
686 | { "Manager", "DefaultLimitAS", config_parse_limit, RLIMIT_AS, arg_default_rlimit }, | |
687 | { "Manager", "DefaultLimitNPROC", config_parse_limit, RLIMIT_NPROC, arg_default_rlimit }, | |
688 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, RLIMIT_MEMLOCK, arg_default_rlimit }, | |
689 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, RLIMIT_LOCKS, arg_default_rlimit }, | |
690 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, RLIMIT_SIGPENDING, arg_default_rlimit }, | |
691 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, RLIMIT_MSGQUEUE, arg_default_rlimit }, | |
692 | { "Manager", "DefaultLimitNICE", config_parse_limit, RLIMIT_NICE, arg_default_rlimit }, | |
693 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, RLIMIT_RTPRIO, arg_default_rlimit }, | |
694 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, RLIMIT_RTTIME, arg_default_rlimit }, | |
085afe36 | 695 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, |
13c31542 | 696 | { "Manager", "DefaultIOAccounting", config_parse_bool, 0, &arg_default_io_accounting }, |
085afe36 LP |
697 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, |
698 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, | |
03a7b521 | 699 | { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_default_tasks_accounting }, |
0af20ea2 | 700 | { "Manager", "DefaultTasksMax", config_parse_tasks_max, 0, &arg_default_tasks_max }, |
d3b1c508 | 701 | {} |
487393e9 LP |
702 | }; |
703 | ||
1b907b5c | 704 | const char *fn, *conf_dirs_nulstr; |
487393e9 | 705 | |
463d0d15 | 706 | fn = arg_system ? |
75eb6154 LP |
707 | PKGSYSCONFDIR "/system.conf" : |
708 | PKGSYSCONFDIR "/user.conf"; | |
709 | ||
463d0d15 | 710 | conf_dirs_nulstr = arg_system ? |
75eb6154 LP |
711 | CONF_PATHS_NULSTR("systemd/system.conf.d") : |
712 | CONF_PATHS_NULSTR("systemd/user.conf.d"); | |
713 | ||
36c16a7c LP |
714 | config_parse_many(fn, conf_dirs_nulstr, "Manager\0", config_item_table_lookup, items, false, NULL); |
715 | ||
716 | /* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we used USEC_INFINITY | |
717 | * like everywhere else. */ | |
718 | if (arg_default_timeout_start_usec <= 0) | |
719 | arg_default_timeout_start_usec = USEC_INFINITY; | |
720 | if (arg_default_timeout_stop_usec <= 0) | |
721 | arg_default_timeout_stop_usec = USEC_INFINITY; | |
487393e9 | 722 | |
487393e9 LP |
723 | return 0; |
724 | } | |
725 | ||
06af2a04 TB |
726 | static void manager_set_defaults(Manager *m) { |
727 | ||
728 | assert(m); | |
729 | ||
730 | m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; | |
731 | m->default_std_output = arg_default_std_output; | |
732 | m->default_std_error = arg_default_std_error; | |
733 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
734 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
735 | m->default_restart_usec = arg_default_restart_usec; | |
736 | m->default_start_limit_interval = arg_default_start_limit_interval; | |
737 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
738 | m->default_cpu_accounting = arg_default_cpu_accounting; | |
13c31542 | 739 | m->default_io_accounting = arg_default_io_accounting; |
06af2a04 TB |
740 | m->default_blockio_accounting = arg_default_blockio_accounting; |
741 | m->default_memory_accounting = arg_default_memory_accounting; | |
03a7b521 | 742 | m->default_tasks_accounting = arg_default_tasks_accounting; |
0af20ea2 | 743 | m->default_tasks_max = arg_default_tasks_max; |
06af2a04 TB |
744 | |
745 | manager_set_default_rlimits(m, arg_default_rlimit); | |
746 | manager_environment_add(m, NULL, arg_default_environment); | |
747 | } | |
748 | ||
f170852a LP |
749 | static int parse_argv(int argc, char *argv[]) { |
750 | ||
751 | enum { | |
752 | ARG_LOG_LEVEL = 0x100, | |
753 | ARG_LOG_TARGET, | |
bbe63281 LP |
754 | ARG_LOG_COLOR, |
755 | ARG_LOG_LOCATION, | |
2f198e2f | 756 | ARG_UNIT, |
edb9aaa8 | 757 | ARG_SYSTEM, |
af2d49f7 | 758 | ARG_USER, |
e537352b | 759 | ARG_TEST, |
b87c2aa6 | 760 | ARG_NO_PAGER, |
9ba0bc4e | 761 | ARG_VERSION, |
80876c20 | 762 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c | 763 | ARG_DUMP_CORE, |
b9e74c39 | 764 | ARG_CRASH_CHVT, |
9e58ff9c | 765 | ARG_CRASH_SHELL, |
b9e74c39 | 766 | ARG_CRASH_REBOOT, |
a16e1123 | 767 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 768 | ARG_SHOW_STATUS, |
4288f619 | 769 | ARG_DESERIALIZE, |
2660882b | 770 | ARG_SWITCHED_ROOT, |
0a494f1f | 771 | ARG_DEFAULT_STD_OUTPUT, |
ee48dbd5 NC |
772 | ARG_DEFAULT_STD_ERROR, |
773 | ARG_MACHINE_ID | |
f170852a LP |
774 | }; |
775 | ||
776 | static const struct option options[] = { | |
a16e1123 LP |
777 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
778 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
779 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
780 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 781 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 782 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 783 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 | 784 | { "test", no_argument, NULL, ARG_TEST }, |
b87c2aa6 | 785 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
a16e1123 | 786 | { "help", no_argument, NULL, 'h' }, |
9ba0bc4e | 787 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 788 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 | 789 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
b9e74c39 | 790 | { "crash-chvt", required_argument, NULL, ARG_CRASH_CHVT }, |
a5d87bf0 | 791 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, |
b9e74c39 | 792 | { "crash-reboot", optional_argument, NULL, ARG_CRASH_REBOOT }, |
a5d87bf0 | 793 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, |
6e98720f | 794 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 795 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 796 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
0a494f1f LP |
797 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
798 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
ee48dbd5 | 799 | { "machine-id", required_argument, NULL, ARG_MACHINE_ID }, |
fb472900 | 800 | {} |
f170852a LP |
801 | }; |
802 | ||
803 | int c, r; | |
804 | ||
805 | assert(argc >= 1); | |
806 | assert(argv); | |
807 | ||
b770165a LP |
808 | if (getpid() == 1) |
809 | opterr = 0; | |
810 | ||
099663ff | 811 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
812 | |
813 | switch (c) { | |
814 | ||
815 | case ARG_LOG_LEVEL: | |
fb472900 ZJS |
816 | r = log_set_max_level_from_string(optarg); |
817 | if (r < 0) { | |
f170852a LP |
818 | log_error("Failed to parse log level %s.", optarg); |
819 | return r; | |
820 | } | |
821 | ||
822 | break; | |
823 | ||
824 | case ARG_LOG_TARGET: | |
fb472900 ZJS |
825 | r = log_set_target_from_string(optarg); |
826 | if (r < 0) { | |
f170852a LP |
827 | log_error("Failed to parse log target %s.", optarg); |
828 | return r; | |
829 | } | |
830 | ||
831 | break; | |
832 | ||
bbe63281 LP |
833 | case ARG_LOG_COLOR: |
834 | ||
d0b170c8 | 835 | if (optarg) { |
fb472900 ZJS |
836 | r = log_show_color_from_string(optarg); |
837 | if (r < 0) { | |
d0b170c8 LP |
838 | log_error("Failed to parse log color setting %s.", optarg); |
839 | return r; | |
840 | } | |
841 | } else | |
842 | log_show_color(true); | |
bbe63281 LP |
843 | |
844 | break; | |
845 | ||
846 | case ARG_LOG_LOCATION: | |
d0b170c8 | 847 | if (optarg) { |
fb472900 ZJS |
848 | r = log_show_location_from_string(optarg); |
849 | if (r < 0) { | |
d0b170c8 LP |
850 | log_error("Failed to parse log location setting %s.", optarg); |
851 | return r; | |
852 | } | |
853 | } else | |
854 | log_show_location(true); | |
bbe63281 LP |
855 | |
856 | break; | |
857 | ||
0a494f1f | 858 | case ARG_DEFAULT_STD_OUTPUT: |
fb472900 ZJS |
859 | r = exec_output_from_string(optarg); |
860 | if (r < 0) { | |
0a494f1f LP |
861 | log_error("Failed to parse default standard output setting %s.", optarg); |
862 | return r; | |
863 | } else | |
864 | arg_default_std_output = r; | |
865 | break; | |
866 | ||
867 | case ARG_DEFAULT_STD_ERROR: | |
fb472900 ZJS |
868 | r = exec_output_from_string(optarg); |
869 | if (r < 0) { | |
0a494f1f LP |
870 | log_error("Failed to parse default standard error output setting %s.", optarg); |
871 | return r; | |
872 | } else | |
873 | arg_default_std_error = r; | |
874 | break; | |
875 | ||
2f198e2f | 876 | case ARG_UNIT: |
f170852a | 877 | |
e6e242ad | 878 | r = free_and_strdup(&arg_default_unit, optarg); |
23bbb0de MS |
879 | if (r < 0) |
880 | return log_error_errno(r, "Failed to set default unit %s: %m", optarg); | |
f170852a LP |
881 | |
882 | break; | |
883 | ||
edb9aaa8 | 884 | case ARG_SYSTEM: |
463d0d15 | 885 | arg_system = true; |
edb9aaa8 | 886 | break; |
a5dab5ce | 887 | |
af2d49f7 | 888 | case ARG_USER: |
463d0d15 | 889 | arg_system = false; |
a5dab5ce | 890 | break; |
a5dab5ce | 891 | |
e965d56d | 892 | case ARG_TEST: |
fa0f4d8a | 893 | arg_action = ACTION_TEST; |
b87c2aa6 ZJS |
894 | break; |
895 | ||
896 | case ARG_NO_PAGER: | |
897 | arg_no_pager = true; | |
e965d56d LP |
898 | break; |
899 | ||
9ba0bc4e ZJS |
900 | case ARG_VERSION: |
901 | arg_action = ACTION_VERSION; | |
902 | break; | |
903 | ||
e537352b | 904 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 905 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
906 | break; |
907 | ||
9e58ff9c | 908 | case ARG_DUMP_CORE: |
b9e74c39 LP |
909 | if (!optarg) |
910 | arg_dump_core = true; | |
911 | else { | |
912 | r = parse_boolean(optarg); | |
913 | if (r < 0) | |
914 | return log_error_errno(r, "Failed to parse dump core boolean: %s", optarg); | |
915 | arg_dump_core = r; | |
a5d87bf0 | 916 | } |
b9e74c39 LP |
917 | break; |
918 | ||
919 | case ARG_CRASH_CHVT: | |
920 | r = parse_crash_chvt(optarg); | |
921 | if (r < 0) | |
922 | return log_error_errno(r, "Failed to parse crash virtual terminal index: %s", optarg); | |
9e58ff9c LP |
923 | break; |
924 | ||
925 | case ARG_CRASH_SHELL: | |
b9e74c39 LP |
926 | if (!optarg) |
927 | arg_crash_shell = true; | |
928 | else { | |
929 | r = parse_boolean(optarg); | |
930 | if (r < 0) | |
931 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
932 | arg_crash_shell = r; | |
933 | } | |
934 | break; | |
935 | ||
936 | case ARG_CRASH_REBOOT: | |
937 | if (!optarg) | |
938 | arg_crash_reboot = true; | |
939 | else { | |
940 | r = parse_boolean(optarg); | |
941 | if (r < 0) | |
942 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
943 | arg_crash_reboot = r; | |
a5d87bf0 | 944 | } |
9e58ff9c LP |
945 | break; |
946 | ||
80876c20 | 947 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
948 | r = optarg ? parse_boolean(optarg) : 1; |
949 | if (r < 0) { | |
950 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
951 | return r; | |
952 | } | |
953 | arg_confirm_spawn = r; | |
80876c20 LP |
954 | break; |
955 | ||
9e58ff9c | 956 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
957 | if (optarg) { |
958 | r = parse_show_status(optarg, &arg_show_status); | |
959 | if (r < 0) { | |
960 | log_error("Failed to parse show status boolean %s.", optarg); | |
961 | return r; | |
962 | } | |
963 | } else | |
964 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 965 | break; |
a5d87bf0 | 966 | |
a16e1123 LP |
967 | case ARG_DESERIALIZE: { |
968 | int fd; | |
969 | FILE *f; | |
970 | ||
01e10de3 LP |
971 | r = safe_atoi(optarg, &fd); |
972 | if (r < 0 || fd < 0) { | |
a16e1123 | 973 | log_error("Failed to parse deserialize option %s.", optarg); |
b9e74c39 | 974 | return -EINVAL; |
a16e1123 LP |
975 | } |
976 | ||
b9e74c39 | 977 | (void) fd_cloexec(fd, true); |
01e10de3 LP |
978 | |
979 | f = fdopen(fd, "r"); | |
4a62c710 MS |
980 | if (!f) |
981 | return log_error_errno(errno, "Failed to open serialization fd: %m"); | |
a16e1123 | 982 | |
74ca738f | 983 | safe_fclose(arg_serialization); |
d3b1c508 | 984 | arg_serialization = f; |
a16e1123 LP |
985 | |
986 | break; | |
987 | } | |
988 | ||
2660882b | 989 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 990 | arg_switched_root = true; |
d03bc1b8 HH |
991 | break; |
992 | ||
ee48dbd5 NC |
993 | case ARG_MACHINE_ID: |
994 | r = set_machine_id(optarg); | |
995 | if (r < 0) { | |
996 | log_error("MachineID '%s' is not valid.", optarg); | |
997 | return r; | |
998 | } | |
999 | break; | |
1000 | ||
f170852a | 1001 | case 'h': |
fa0f4d8a | 1002 | arg_action = ACTION_HELP; |
f170852a LP |
1003 | break; |
1004 | ||
1d2e23ab LP |
1005 | case 'D': |
1006 | log_set_max_level(LOG_DEBUG); | |
1007 | break; | |
1008 | ||
099663ff LP |
1009 | case 'b': |
1010 | case 's': | |
1011 | case 'z': | |
1012 | /* Just to eat away the sysvinit kernel | |
1013 | * cmdline args without getopt() error | |
1014 | * messages that we'll parse in | |
1015 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 1016 | |
099663ff | 1017 | case '?': |
601185b4 | 1018 | if (getpid() != 1) |
099663ff | 1019 | return -EINVAL; |
601185b4 ZJS |
1020 | else |
1021 | return 0; | |
099663ff | 1022 | |
601185b4 ZJS |
1023 | default: |
1024 | assert_not_reached("Unhandled option code."); | |
f170852a LP |
1025 | } |
1026 | ||
d821e6d6 LP |
1027 | if (optind < argc && getpid() != 1) { |
1028 | /* Hmm, when we aren't run as init system | |
1029 | * let's complain about excess arguments */ | |
1030 | ||
1031 | log_error("Excess arguments."); | |
1032 | return -EINVAL; | |
1033 | } | |
1034 | ||
f170852a LP |
1035 | return 0; |
1036 | } | |
1037 | ||
1038 | static int help(void) { | |
1039 | ||
2e33c433 | 1040 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1041 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1042 | " -h --help Show this help\n" |
e537352b | 1043 | " --test Determine startup sequence, dump it and exit\n" |
b87c2aa6 | 1044 | " --no-pager Do not pipe output into a pager\n" |
80876c20 | 1045 | " --dump-configuration-items Dump understood unit configuration items\n" |
9e58ff9c | 1046 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1047 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1048 | " --user Run a user instance\n" |
b9e74c39 LP |
1049 | " --dump-core[=BOOL] Dump core on crash\n" |
1050 | " --crash-vt=NR Change to specified VT on crash\n" | |
1051 | " --crash-reboot[=BOOL] Reboot on crash\n" | |
1052 | " --crash-shell[=BOOL] Run shell on crash\n" | |
1053 | " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n" | |
1054 | " --show-status[=BOOL] Show status updates on the console during bootup\n" | |
c1dc6153 | 1055 | " --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n" |
9e58ff9c | 1056 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
b9e74c39 LP |
1057 | " --log-color[=BOOL] Highlight important log messages\n" |
1058 | " --log-location[=BOOL] Include code location in log messages\n" | |
0a494f1f LP |
1059 | " --default-standard-output= Set default standard output for services\n" |
1060 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1061 | program_invocation_short_name); |
f170852a LP |
1062 | |
1063 | return 0; | |
1064 | } | |
1065 | ||
b3680f49 | 1066 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
48b90859 LP |
1067 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1068 | _cleanup_fclose_ FILE *f = NULL; | |
a16e1123 LP |
1069 | int r; |
1070 | ||
1071 | assert(m); | |
1072 | assert(_f); | |
1073 | assert(_fds); | |
1074 | ||
6b78f9b4 | 1075 | r = manager_open_serialization(m, &f); |
48b90859 LP |
1076 | if (r < 0) |
1077 | return log_error_errno(r, "Failed to create serialization file: %m"); | |
a16e1123 | 1078 | |
71445ae7 | 1079 | /* Make sure nothing is really destructed when we shut down */ |
313cefa1 | 1080 | m->n_reloading++; |
718db961 | 1081 | bus_manager_send_reloading(m, true); |
71445ae7 | 1082 | |
6b78f9b4 | 1083 | fds = fdset_new(); |
48b90859 LP |
1084 | if (!fds) |
1085 | return log_oom(); | |
a16e1123 | 1086 | |
b3680f49 | 1087 | r = manager_serialize(m, f, fds, switching_root); |
48b90859 LP |
1088 | if (r < 0) |
1089 | return log_error_errno(r, "Failed to serialize state: %m"); | |
a16e1123 | 1090 | |
48b90859 LP |
1091 | if (fseeko(f, 0, SEEK_SET) == (off_t) -1) |
1092 | return log_error_errno(errno, "Failed to rewind serialization fd: %m"); | |
a16e1123 | 1093 | |
6b78f9b4 | 1094 | r = fd_cloexec(fileno(f), false); |
48b90859 LP |
1095 | if (r < 0) |
1096 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m"); | |
a16e1123 | 1097 | |
6b78f9b4 | 1098 | r = fdset_cloexec(fds, false); |
48b90859 LP |
1099 | if (r < 0) |
1100 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m"); | |
a16e1123 LP |
1101 | |
1102 | *_f = f; | |
1103 | *_fds = fds; | |
1104 | ||
48b90859 LP |
1105 | f = NULL; |
1106 | fds = NULL; | |
a16e1123 | 1107 | |
48b90859 | 1108 | return 0; |
a16e1123 LP |
1109 | } |
1110 | ||
4096d6f5 LP |
1111 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1112 | struct rlimit nl; | |
1113 | int r; | |
1114 | ||
1115 | assert(saved_rlimit); | |
1116 | ||
1117 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1118 | * later when transitioning from the initrd to the main | |
1119 | * systemd or suchlike. */ | |
4a62c710 MS |
1120 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) |
1121 | return log_error_errno(errno, "Reading RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1122 | |
1123 | /* Make sure forked processes get the default kernel setting */ | |
1124 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1125 | struct rlimit *rl; | |
1126 | ||
1127 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1128 | if (!rl) | |
1129 | return log_oom(); | |
1130 | ||
1131 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1132 | } | |
1133 | ||
1134 | /* Bump up the resource limit for ourselves substantially */ | |
1135 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1136 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
23bbb0de MS |
1137 | if (r < 0) |
1138 | return log_error_errno(r, "Setting RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1139 | |
1140 | return 0; | |
1141 | } | |
1142 | ||
80758717 | 1143 | static void test_usr(void) { |
80758717 | 1144 | |
ed1c99fc | 1145 | /* Check that /usr is not a separate fs */ |
80758717 | 1146 | |
871c44a7 LP |
1147 | if (dir_is_empty("/usr") <= 0) |
1148 | return; | |
1149 | ||
8b173b5e | 1150 | log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1151 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1152 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1153 | } | |
1154 | ||
a07fdfa3 LP |
1155 | static int initialize_join_controllers(void) { |
1156 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1157 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
f131770b | 1158 | * "cpuset" doesn't really work for groups with no initialized |
a07fdfa3 LP |
1159 | * attributes. */ |
1160 | ||
1161 | arg_join_controllers = new(char**, 3); | |
1162 | if (!arg_join_controllers) | |
1163 | return -ENOMEM; | |
1164 | ||
1165 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
fe382237 LP |
1166 | if (!arg_join_controllers[0]) |
1167 | goto oom; | |
a6b26d90 | 1168 | |
fe382237 LP |
1169 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
1170 | if (!arg_join_controllers[1]) | |
1171 | goto oom; | |
a07fdfa3 | 1172 | |
fe382237 | 1173 | arg_join_controllers[2] = NULL; |
a07fdfa3 | 1174 | return 0; |
fe382237 LP |
1175 | |
1176 | oom: | |
1177 | arg_join_controllers = strv_free_free(arg_join_controllers); | |
1178 | return -ENOMEM; | |
a07fdfa3 LP |
1179 | } |
1180 | ||
d3b1c508 LP |
1181 | static int enforce_syscall_archs(Set *archs) { |
1182 | #ifdef HAVE_SECCOMP | |
1183 | scmp_filter_ctx *seccomp; | |
1184 | Iterator i; | |
1185 | void *id; | |
1186 | int r; | |
1187 | ||
1188 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1189 | if (!seccomp) | |
1190 | return log_oom(); | |
1191 | ||
1192 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1193 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1194 | if (r == -EEXIST) | |
1195 | continue; | |
1196 | if (r < 0) { | |
da927ba9 | 1197 | log_error_errno(r, "Failed to add architecture to seccomp: %m"); |
d3b1c508 LP |
1198 | goto finish; |
1199 | } | |
1200 | } | |
1201 | ||
8a8bf3c0 LP |
1202 | r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); |
1203 | if (r < 0) { | |
da927ba9 | 1204 | log_error_errno(r, "Failed to unset NO_NEW_PRIVS: %m"); |
8a8bf3c0 LP |
1205 | goto finish; |
1206 | } | |
1207 | ||
d3b1c508 LP |
1208 | r = seccomp_load(seccomp); |
1209 | if (r < 0) | |
da927ba9 | 1210 | log_error_errno(r, "Failed to add install architecture seccomp: %m"); |
d3b1c508 LP |
1211 | |
1212 | finish: | |
1213 | seccomp_release(seccomp); | |
1214 | return r; | |
1215 | #else | |
1216 | return 0; | |
1217 | #endif | |
1218 | } | |
1219 | ||
b6e2f329 LP |
1220 | static int status_welcome(void) { |
1221 | _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; | |
1222 | int r; | |
1223 | ||
1224 | r = parse_env_file("/etc/os-release", NEWLINE, | |
1225 | "PRETTY_NAME", &pretty_name, | |
1226 | "ANSI_COLOR", &ansi_color, | |
1227 | NULL); | |
ece174c5 | 1228 | if (r == -ENOENT) |
5ae4d543 LP |
1229 | r = parse_env_file("/usr/lib/os-release", NEWLINE, |
1230 | "PRETTY_NAME", &pretty_name, | |
1231 | "ANSI_COLOR", &ansi_color, | |
1232 | NULL); | |
b6e2f329 LP |
1233 | |
1234 | if (r < 0 && r != -ENOENT) | |
da927ba9 | 1235 | log_warning_errno(r, "Failed to read os-release file: %m"); |
b6e2f329 | 1236 | |
dc9b5816 ZJS |
1237 | if (log_get_show_color()) |
1238 | return status_printf(NULL, false, false, | |
1239 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1240 | isempty(ansi_color) ? "1" : ansi_color, | |
1241 | isempty(pretty_name) ? "Linux" : pretty_name); | |
1242 | else | |
1243 | return status_printf(NULL, false, false, | |
1244 | "\nWelcome to %s!\n", | |
1245 | isempty(pretty_name) ? "Linux" : pretty_name); | |
b6e2f329 LP |
1246 | } |
1247 | ||
fdd25311 LP |
1248 | static int write_container_id(void) { |
1249 | const char *c; | |
19854865 | 1250 | int r; |
fdd25311 LP |
1251 | |
1252 | c = getenv("container"); | |
1253 | if (isempty(c)) | |
1254 | return 0; | |
1255 | ||
8612da97 LP |
1256 | RUN_WITH_UMASK(0022) |
1257 | r = write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE); | |
19854865 | 1258 | if (r < 0) |
f1f849b0 | 1259 | return log_warning_errno(r, "Failed to write /run/systemd/container, ignoring: %m"); |
19854865 LP |
1260 | |
1261 | return 1; | |
1262 | } | |
1263 | ||
1264 | static int bump_unix_max_dgram_qlen(void) { | |
1265 | _cleanup_free_ char *qlen = NULL; | |
1266 | unsigned long v; | |
1267 | int r; | |
1268 | ||
1269 | /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel | |
1270 | * default of 16 is simply too low. We set the value really | |
1271 | * really early during boot, so that it is actually applied to | |
1272 | * all our sockets, including the $NOTIFY_SOCKET one. */ | |
1273 | ||
1274 | r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen); | |
1275 | if (r < 0) | |
1276 | return log_warning_errno(r, "Failed to read AF_UNIX datagram queue length, ignoring: %m"); | |
1277 | ||
1278 | r = safe_atolu(qlen, &v); | |
1279 | if (r < 0) | |
1280 | return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length, ignoring: %m"); | |
1281 | ||
1282 | if (v >= DEFAULT_UNIX_MAX_DGRAM_QLEN) | |
1283 | return 0; | |
1284 | ||
1285 | qlen = mfree(qlen); | |
1286 | if (asprintf(&qlen, "%lu\n", DEFAULT_UNIX_MAX_DGRAM_QLEN) < 0) | |
1287 | return log_oom(); | |
1288 | ||
1289 | r = write_string_file("/proc/sys/net/unix/max_dgram_qlen", qlen, 0); | |
1290 | if (r < 0) | |
1291 | return log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r, | |
1292 | "Failed to bump AF_UNIX datagram queue length, ignoring: %m"); | |
1293 | ||
1294 | return 1; | |
fdd25311 LP |
1295 | } |
1296 | ||
32391275 FB |
1297 | static int fixup_environment(void) { |
1298 | _cleanup_free_ char *term = NULL; | |
1299 | int r; | |
1300 | ||
1301 | /* When started as PID1, the kernel uses /dev/console | |
1302 | * for our stdios and uses TERM=linux whatever the | |
1303 | * backend device used by the console. We try to make | |
1304 | * a better guess here since some consoles might not | |
1305 | * have support for color mode for example. | |
1306 | * | |
1307 | * However if TERM was configured through the kernel | |
1308 | * command line then leave it alone. */ | |
1309 | ||
1310 | r = get_proc_cmdline_key("TERM=", &term); | |
1311 | if (r < 0) | |
1312 | return r; | |
1313 | ||
1314 | if (r == 0) { | |
1315 | term = strdup(default_term_for_tty("/dev/console") + 5); | |
1316 | if (!term) | |
1317 | return -errno; | |
1318 | } | |
1319 | ||
1320 | if (setenv("TERM", term, 1) < 0) | |
1321 | return -errno; | |
1322 | ||
1323 | return 0; | |
1324 | } | |
1325 | ||
60918275 LP |
1326 | int main(int argc, char *argv[]) { |
1327 | Manager *m = NULL; | |
22f4096c | 1328 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1329 | usec_t before_startup, after_startup; |
1330 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1331 | FDSet *fds = NULL; |
1332 | bool reexecute = false; | |
b9080b03 | 1333 | const char *shutdown_verb = NULL; |
86caf095 LP |
1334 | dual_timestamp initrd_timestamp = DUAL_TIMESTAMP_NULL; |
1335 | dual_timestamp userspace_timestamp = DUAL_TIMESTAMP_NULL; | |
1336 | dual_timestamp kernel_timestamp = DUAL_TIMESTAMP_NULL; | |
1337 | dual_timestamp security_start_timestamp = DUAL_TIMESTAMP_NULL; | |
1338 | dual_timestamp security_finish_timestamp = DUAL_TIMESTAMP_NULL; | |
5d6b1584 | 1339 | static char systemd[] = "systemd"; |
2660882b | 1340 | bool skip_setup = false; |
d3b1c508 | 1341 | unsigned j; |
0b3325e7 | 1342 | bool loaded_policy = false; |
e96d6be7 | 1343 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1344 | bool queue_default_job = false; |
5f5c2f38 | 1345 | bool empty_etc = false; |
41669317 | 1346 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
86caf095 | 1347 | struct rlimit saved_rlimit_nofile = RLIMIT_MAKE_CONST(0); |
cb6531be | 1348 | const char *error_message = NULL; |
27b14a22 | 1349 | |
058dc6f3 | 1350 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1351 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1352 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1353 | * calling init as a user is identical to telinit. */ |
1354 | ||
2cb1a60d | 1355 | execv(SYSTEMCTL_BINARY_PATH, argv); |
56f64d95 | 1356 | log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); |
2cb1a60d LP |
1357 | return 1; |
1358 | } | |
058dc6f3 | 1359 | #endif |
2cb1a60d | 1360 | |
c3a170f3 HH |
1361 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
1362 | dual_timestamp_get(&userspace_timestamp); | |
1363 | ||
0b3325e7 LP |
1364 | /* Determine if this is a reexecution or normal bootup. We do |
1365 | * the full command line parsing much later, so let's just | |
1366 | * have a quick peek here. */ | |
db813c2a LP |
1367 | if (strv_find(argv+1, "--deserialize")) |
1368 | skip_setup = true; | |
0b3325e7 | 1369 | |
2660882b LP |
1370 | /* If we have switched root, do all the special setup |
1371 | * things */ | |
db813c2a LP |
1372 | if (strv_find(argv+1, "--switched-root")) |
1373 | skip_setup = false; | |
d03bc1b8 | 1374 | |
f3b6a3ed LP |
1375 | /* If we get started via the /sbin/init symlink then we are |
1376 | called 'init'. After a subsequent reexecution we are then | |
1377 | called 'systemd'. That is confusing, hence let's call us | |
1378 | systemd right-away. */ | |
f3b6a3ed LP |
1379 | program_invocation_short_name = systemd; |
1380 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1381 | |
9a0e6896 LP |
1382 | saved_argv = argv; |
1383 | saved_argc = argc; | |
f3b6a3ed | 1384 | |
d5ca5e13 | 1385 | log_show_color(colors_enabled()); |
c1dc6153 | 1386 | log_set_upgrade_syslog_to_journal(true); |
bbe63281 | 1387 | |
90dc8c2e MG |
1388 | /* Disable the umask logic */ |
1389 | if (getpid() == 1) | |
1390 | umask(0); | |
1391 | ||
75f86906 | 1392 | if (getpid() == 1 && detect_container() <= 0) { |
4f8d551f | 1393 | |
a866073d | 1394 | /* Running outside of a container as PID 1 */ |
463d0d15 | 1395 | arg_system = true; |
a866073d LP |
1396 | make_null_stdio(); |
1397 | log_set_target(LOG_TARGET_KMSG); | |
1398 | log_open(); | |
1399 | ||
21bf2ab0 | 1400 | if (in_initrd()) |
c3a170f3 | 1401 | initrd_timestamp = userspace_timestamp; |
c3ba6250 | 1402 | |
2660882b | 1403 | if (!skip_setup) { |
d723cd65 AK |
1404 | r = mount_setup_early(); |
1405 | if (r < 0) { | |
1406 | error_message = "Failed to early mount API filesystems"; | |
1407 | goto finish; | |
1408 | } | |
c2e0d600 | 1409 | dual_timestamp_get(&security_start_timestamp); |
cb6531be ZJS |
1410 | if (mac_selinux_setup(&loaded_policy) < 0) { |
1411 | error_message = "Failed to load SELinux policy"; | |
0b3325e7 | 1412 | goto finish; |
cb6531be ZJS |
1413 | } else if (ima_setup() < 0) { |
1414 | error_message = "Failed to load IMA policy"; | |
81611586 | 1415 | goto finish; |
cb6531be ZJS |
1416 | } else if (mac_smack_setup(&loaded_policy) < 0) { |
1417 | error_message = "Failed to load SMACK policy"; | |
ffbd2c4d | 1418 | goto finish; |
cb6531be | 1419 | } |
c2e0d600 | 1420 | dual_timestamp_get(&security_finish_timestamp); |
81611586 | 1421 | } |
0b3325e7 | 1422 | |
c3dacc8b | 1423 | if (mac_selinux_init() < 0) { |
cb6531be | 1424 | error_message = "Failed to initialize SELinux policy"; |
0ff4cdd9 | 1425 | goto finish; |
cb6531be | 1426 | } |
7948c4df | 1427 | |
72edcff5 | 1428 | if (!skip_setup) { |
6369641d | 1429 | if (clock_is_localtime(NULL) > 0) { |
0b3325e7 | 1430 | int min; |
7948c4df | 1431 | |
c264aeab KS |
1432 | /* |
1433 | * The very first call of settimeofday() also does a time warp in the kernel. | |
1434 | * | |
1435 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on | |
1436 | * external tools to take care of maintaining the RTC and do all adjustments. | |
1437 | * This matches the behavior of Windows, which leaves the RTC alone if the | |
1438 | * registry tells that the RTC runs in UTC. | |
1439 | */ | |
24efb112 | 1440 | r = clock_set_timezone(&min); |
0b3325e7 | 1441 | if (r < 0) |
da927ba9 | 1442 | log_error_errno(r, "Failed to apply local time delta, ignoring: %m"); |
0b3325e7 LP |
1443 | else |
1444 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1445 | } else if (!in_initrd()) { |
1446 | /* | |
c264aeab | 1447 | * Do a dummy very first call to seal the kernel's time warp magic. |
19e65613 KS |
1448 | * |
1449 | * Do not call this this from inside the initrd. The initrd might not | |
1450 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1451 | * that way. In such case, we need to delay the time-warp or the sealing | |
1452 | * until we reach the real system. | |
c264aeab KS |
1453 | * |
1454 | * Do no set the kernel's timezone. The concept of local time cannot | |
1455 | * be supported reliably, the time will jump or be incorrect at every daylight | |
1456 | * saving time change. All kernel local time concepts will be treated | |
1457 | * as UTC that way. | |
19e65613 | 1458 | */ |
021dd87b | 1459 | (void) clock_reset_timewarp(); |
72edcff5 | 1460 | } |
021dd87b LP |
1461 | |
1462 | r = clock_apply_epoch(); | |
1463 | if (r < 0) | |
1464 | log_error_errno(r, "Current system time is before build time, but cannot correct: %m"); | |
1465 | else if (r > 0) | |
1466 | log_info("System time before build time, advancing clock."); | |
72edcff5 | 1467 | } |
a866073d LP |
1468 | |
1469 | /* Set the default for later on, but don't actually | |
1470 | * open the logs like this for now. Note that if we | |
1471 | * are transitioning from the initrd there might still | |
1472 | * be journal fd open, and we shouldn't attempt | |
1473 | * opening that before we parsed /proc/cmdline which | |
1474 | * might redirect output elsewhere. */ | |
1475 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1476 | ||
1477 | } else if (getpid() == 1) { | |
a866073d | 1478 | /* Running inside a container, as PID 1 */ |
463d0d15 | 1479 | arg_system = true; |
a866073d | 1480 | log_set_target(LOG_TARGET_CONSOLE); |
99f09825 | 1481 | log_close_console(); /* force reopen of /dev/console */ |
a866073d LP |
1482 | log_open(); |
1483 | ||
1484 | /* For the later on, see above... */ | |
1485 | log_set_target(LOG_TARGET_JOURNAL); | |
1486 | ||
c3a170f3 HH |
1487 | /* clear the kernel timestamp, |
1488 | * because we are in a container */ | |
0f5f63c3 | 1489 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
c3a170f3 | 1490 | } else { |
a866073d | 1491 | /* Running as user instance */ |
463d0d15 | 1492 | arg_system = false; |
eeecf6e6 | 1493 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1494 | log_open(); |
c3a170f3 HH |
1495 | |
1496 | /* clear the kernel timestamp, | |
1497 | * because we are not PID 1 */ | |
6513d561 | 1498 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
bbe63281 | 1499 | } |
a5dab5ce | 1500 | |
15a90032 LP |
1501 | if (getpid() == 1) { |
1502 | /* Don't limit the core dump size, so that coredump handlers such as systemd-coredump (which honour the limit) | |
1503 | * will process core dumps for system services by default. */ | |
1504 | (void) setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)); | |
1505 | ||
1506 | /* But at the same time, turn off the core_pattern logic by default, so that no coredumps are stored | |
1507 | * until the systemd-coredump tool is enabled via sysctl. */ | |
1508 | if (!skip_setup) | |
1509 | (void) write_string_file("/proc/sys/kernel/core_pattern", "|/bin/false", 0); | |
1510 | } | |
1511 | ||
32391275 FB |
1512 | /* We expect the environment to be set correctly if run inside a |
1513 | * container. */ | |
1514 | if (arg_system && detect_container() <= 0) | |
1515 | if (fixup_environment() < 0) { | |
1516 | error_message = "Failed to fix up PID1 environment"; | |
1517 | goto finish; | |
1518 | } | |
1519 | ||
0c85a4f3 | 1520 | /* Initialize default unit */ |
e6e242ad | 1521 | r = free_and_strdup(&arg_default_unit, SPECIAL_DEFAULT_TARGET); |
6afa301b | 1522 | if (r < 0) { |
da927ba9 | 1523 | log_emergency_errno(r, "Failed to set default unit %s: %m", SPECIAL_DEFAULT_TARGET); |
cb6531be | 1524 | error_message = "Failed to set default unit"; |
f170852a | 1525 | goto finish; |
14212119 | 1526 | } |
60918275 | 1527 | |
a07fdfa3 | 1528 | r = initialize_join_controllers(); |
cb6531be | 1529 | if (r < 0) { |
ff9b60f3 | 1530 | error_message = "Failed to initialize cgroup controllers"; |
0c85a4f3 | 1531 | goto finish; |
cb6531be | 1532 | } |
0c85a4f3 | 1533 | |
f170852a LP |
1534 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1535 | * /proc/$PID/fd is available. */ | |
c1dae1b3 | 1536 | if (getpid() == 1) { |
f84f9974 LP |
1537 | |
1538 | /* Load the kernel modules early, so that we kdbus.ko is loaded before kdbusfs shall be mounted */ | |
2e75e2a8 DM |
1539 | if (!skip_setup) |
1540 | kmod_setup(); | |
2e75e2a8 | 1541 | |
0c85a4f3 | 1542 | r = mount_setup(loaded_policy); |
cb6531be ZJS |
1543 | if (r < 0) { |
1544 | error_message = "Failed to mount API filesystems"; | |
8efe3c01 | 1545 | goto finish; |
cb6531be | 1546 | } |
0c85a4f3 | 1547 | } |
4ade7963 LP |
1548 | |
1549 | /* Reset all signal handlers. */ | |
ce30c8dc LP |
1550 | (void) reset_all_signal_handlers(); |
1551 | (void) ignore_signals(SIGNALS_IGNORE, -1); | |
078e4539 | 1552 | |
cb6531be ZJS |
1553 | if (parse_config_file() < 0) { |
1554 | error_message = "Failed to parse config file"; | |
487393e9 | 1555 | goto finish; |
cb6531be | 1556 | } |
487393e9 | 1557 | |
463d0d15 | 1558 | if (arg_system) { |
b5884878 LP |
1559 | r = parse_proc_cmdline(parse_proc_cmdline_item); |
1560 | if (r < 0) | |
da927ba9 | 1561 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
b5884878 | 1562 | } |
f170852a | 1563 | |
1de1c9c3 LP |
1564 | /* Note that this also parses bits from the kernel command |
1565 | * line, including "debug". */ | |
f170852a LP |
1566 | log_parse_environment(); |
1567 | ||
cb6531be ZJS |
1568 | if (parse_argv(argc, argv) < 0) { |
1569 | error_message = "Failed to parse commandline arguments"; | |
f170852a | 1570 | goto finish; |
cb6531be | 1571 | } |
f170852a | 1572 | |
6bae23a0 TB |
1573 | if (arg_action == ACTION_TEST && |
1574 | geteuid() == 0) { | |
b5c6cf87 LP |
1575 | log_error("Don't run test mode as root."); |
1576 | goto finish; | |
1577 | } | |
1578 | ||
463d0d15 | 1579 | if (!arg_system && |
6bae23a0 TB |
1580 | arg_action == ACTION_RUN && |
1581 | sd_booted() <= 0) { | |
1582 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1583 | goto finish; | |
1584 | } | |
1585 | ||
463d0d15 | 1586 | if (arg_system && |
fe783b03 LP |
1587 | arg_action == ACTION_RUN && |
1588 | running_in_chroot() > 0) { | |
1589 | log_error("Cannot be run in a chroot() environment."); | |
1590 | goto finish; | |
1591 | } | |
1592 | ||
0d8c31ff ZJS |
1593 | if (arg_action == ACTION_TEST) |
1594 | skip_setup = true; | |
1595 | ||
ea4b98e6 AK |
1596 | if (arg_action == ACTION_TEST || arg_action == ACTION_HELP) |
1597 | pager_open(arg_no_pager, false); | |
b87c2aa6 | 1598 | |
fa0f4d8a | 1599 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1600 | retval = help(); |
1601 | goto finish; | |
9ba0bc4e ZJS |
1602 | } else if (arg_action == ACTION_VERSION) { |
1603 | retval = version(); | |
1604 | goto finish; | |
fa0f4d8a | 1605 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1606 | unit_dump_config_items(stdout); |
22f4096c | 1607 | retval = EXIT_SUCCESS; |
e537352b | 1608 | goto finish; |
fa0f4d8a | 1609 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1610 | retval = EXIT_SUCCESS; |
4288f619 | 1611 | goto finish; |
f170852a LP |
1612 | } |
1613 | ||
463d0d15 | 1614 | if (!arg_system && |
8be28fb1 KS |
1615 | !getenv("XDG_RUNTIME_DIR")) { |
1616 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1617 | goto finish; | |
1618 | } | |
1619 | ||
fa0f4d8a | 1620 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1621 | |
871e5809 LP |
1622 | /* Close logging fds, in order not to confuse fdset below */ |
1623 | log_close(); | |
1624 | ||
a16e1123 | 1625 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1626 | r = fdset_new_fill(&fds); |
1627 | if (r < 0) { | |
da927ba9 | 1628 | log_emergency_errno(r, "Failed to allocate fd set: %m"); |
cb6531be | 1629 | error_message = "Failed to allocate fd set"; |
01e10de3 LP |
1630 | goto finish; |
1631 | } else | |
1632 | fdset_cloexec(fds, true); | |
a16e1123 | 1633 | |
d3b1c508 LP |
1634 | if (arg_serialization) |
1635 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
a16e1123 | 1636 | |
463d0d15 | 1637 | if (arg_system) |
80876c20 LP |
1638 | /* Become a session leader if we aren't one yet. */ |
1639 | setsid(); | |
4ade7963 | 1640 | |
befb5b6a | 1641 | /* Move out of the way, so that we won't block unmounts */ |
d250afe7 | 1642 | assert_se(chdir("/") == 0); |
befb5b6a | 1643 | |
2146621b LP |
1644 | /* Reset the console, but only if this is really init and we |
1645 | * are freshly booted */ | |
463d0d15 | 1646 | if (arg_system && arg_action == ACTION_RUN) { |
56d96fc0 LP |
1647 | |
1648 | /* If we are init, we connect stdin/stdout/stderr to | |
1649 | * /dev/null and make sure we don't have a controlling | |
1650 | * tty. */ | |
1651 | release_terminal(); | |
1652 | ||
1653 | if (getpid() == 1 && !skip_setup) | |
1654 | console_setup(); | |
1655 | } | |
4ade7963 | 1656 | |
18149b9f | 1657 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1658 | log_open(); |
4ade7963 | 1659 | |
b6e2f329 LP |
1660 | if (arg_show_status == _SHOW_STATUS_UNSET) |
1661 | arg_show_status = SHOW_STATUS_YES; | |
1662 | ||
5373d602 LP |
1663 | /* Make sure we leave a core dump without panicing the |
1664 | * kernel. */ | |
ab422445 | 1665 | if (getpid() == 1) { |
4fc935ca | 1666 | install_crash_handler(); |
97c4f35c | 1667 | |
0c85a4f3 LP |
1668 | r = mount_cgroup_controllers(arg_join_controllers); |
1669 | if (r < 0) | |
1670 | goto finish; | |
1671 | } | |
1672 | ||
463d0d15 | 1673 | if (arg_system) { |
75f86906 | 1674 | int v; |
c20f5ac7 | 1675 | |
0d8c31ff ZJS |
1676 | log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", |
1677 | arg_action == ACTION_TEST ? "test " : "" ); | |
c20f5ac7 | 1678 | |
75f86906 LP |
1679 | v = detect_virtualization(); |
1680 | if (v > 0) | |
1681 | log_info("Detected virtualization %s.", virtualization_to_string(v)); | |
c20f5ac7 | 1682 | |
fdd25311 LP |
1683 | write_container_id(); |
1684 | ||
d3f86679 | 1685 | log_info("Detected architecture %s.", architecture_to_string(uname_architecture())); |
d9d93745 | 1686 | |
26a1efdf LP |
1687 | if (in_initrd()) |
1688 | log_info("Running in initial RAM disk."); | |
1689 | ||
3408ba01 LP |
1690 | /* Let's check whether /etc is already populated. We |
1691 | * don't actually really check for that, but use | |
1692 | * /etc/machine-id as flag file. This allows container | |
1693 | * managers and installers to provision a couple of | |
1694 | * files already. If the container manager wants to | |
1695 | * provision the machine ID itself it should pass | |
ee33e53a | 1696 | * $container_uuid to PID 1. */ |
3408ba01 | 1697 | |
baa1bdf7 | 1698 | empty_etc = access("/etc/machine-id", F_OK) < 0; |
5f5c2f38 LP |
1699 | if (empty_etc) |
1700 | log_info("Running with unpopulated /etc."); | |
d8160f21 | 1701 | } else { |
1f97091d LP |
1702 | _cleanup_free_ char *t; |
1703 | ||
1704 | t = uid_to_name(getuid()); | |
0d8c31ff ZJS |
1705 | log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", |
1706 | arg_action == ACTION_TEST ? " test" : "", getuid(), t); | |
d8160f21 | 1707 | } |
a5dab5ce | 1708 | |
463d0d15 | 1709 | if (arg_system && !skip_setup) { |
031886ed | 1710 | if (arg_show_status > 0) |
888c6216 LP |
1711 | status_welcome(); |
1712 | ||
888c6216 | 1713 | hostname_setup(); |
ee48dbd5 | 1714 | machine_id_setup(NULL, arg_machine_id); |
888c6216 | 1715 | loopback_setup(); |
19854865 | 1716 | bump_unix_max_dgram_qlen(); |
490aed58 | 1717 | |
80758717 | 1718 | test_usr(); |
af5bc85d | 1719 | } |
302e8c4c | 1720 | |
463d0d15 | 1721 | if (arg_system && arg_runtime_watchdog > 0 && arg_runtime_watchdog != USEC_INFINITY) |
e96d6be7 LP |
1722 | watchdog_set_timeout(&arg_runtime_watchdog); |
1723 | ||
3a43da28 | 1724 | if (arg_timer_slack_nsec != NSEC_INFINITY) |
aa0f64ac | 1725 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) |
56f64d95 | 1726 | log_error_errno(errno, "Failed to adjust timer slack: %m"); |
aa0f64ac | 1727 | |
a103496c IP |
1728 | if (!cap_test_all(arg_capability_bounding_set)) { |
1729 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set); | |
ec8927ca | 1730 | if (r < 0) { |
da927ba9 | 1731 | log_emergency_errno(r, "Failed to drop capability bounding set of usermode helpers: %m"); |
cb6531be | 1732 | error_message = "Failed to drop capability bounding set of usermode helpers"; |
ec8927ca LP |
1733 | goto finish; |
1734 | } | |
a103496c | 1735 | r = capability_bounding_set_drop(arg_capability_bounding_set, true); |
939b8f14 | 1736 | if (r < 0) { |
da927ba9 | 1737 | log_emergency_errno(r, "Failed to drop capability bounding set: %m"); |
cb6531be | 1738 | error_message = "Failed to drop capability bounding set"; |
939b8f14 LP |
1739 | goto finish; |
1740 | } | |
ec8927ca LP |
1741 | } |
1742 | ||
d3b1c508 LP |
1743 | if (arg_syscall_archs) { |
1744 | r = enforce_syscall_archs(arg_syscall_archs); | |
cb6531be ZJS |
1745 | if (r < 0) { |
1746 | error_message = "Failed to set syscall architectures"; | |
d3b1c508 | 1747 | goto finish; |
cb6531be | 1748 | } |
d3b1c508 LP |
1749 | } |
1750 | ||
463d0d15 | 1751 | if (!arg_system) |
d4447f4d | 1752 | /* Become reaper of our children */ |
61b9b203 | 1753 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) |
56f64d95 | 1754 | log_warning_errno(errno, "Failed to make us a subreaper: %m"); |
d4447f4d | 1755 | |
463d0d15 | 1756 | if (arg_system) { |
4096d6f5 LP |
1757 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1758 | ||
5f5c2f38 | 1759 | if (empty_etc) { |
304b3079 | 1760 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, false, NULL, 0); |
5f5c2f38 | 1761 | if (r < 0) |
287a0de4 | 1762 | log_full_errno(r == -EEXIST ? LOG_NOTICE : LOG_WARNING, r, "Failed to populate /etc with preset unit settings, ignoring: %m"); |
5f5c2f38 LP |
1763 | else |
1764 | log_info("Populated /etc with preset unit settings."); | |
1765 | } | |
1766 | } | |
1767 | ||
463d0d15 | 1768 | r = manager_new(arg_system ? UNIT_FILE_SYSTEM : UNIT_FILE_USER, arg_action == ACTION_TEST, &m); |
e96d6be7 | 1769 | if (r < 0) { |
da927ba9 | 1770 | log_emergency_errno(r, "Failed to allocate manager object: %m"); |
cb6531be | 1771 | error_message = "Failed to allocate manager object"; |
60918275 LP |
1772 | goto finish; |
1773 | } | |
1774 | ||
9e58ff9c | 1775 | m->confirm_spawn = arg_confirm_spawn; |
e96d6be7 LP |
1776 | m->runtime_watchdog = arg_runtime_watchdog; |
1777 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
c3a170f3 HH |
1778 | m->userspace_timestamp = userspace_timestamp; |
1779 | m->kernel_timestamp = kernel_timestamp; | |
c3a170f3 | 1780 | m->initrd_timestamp = initrd_timestamp; |
c2e0d600 TA |
1781 | m->security_start_timestamp = security_start_timestamp; |
1782 | m->security_finish_timestamp = security_finish_timestamp; | |
9e58ff9c | 1783 | |
06af2a04 | 1784 | manager_set_defaults(m); |
27d340c7 | 1785 | manager_set_show_status(m, arg_show_status); |
e2680723 | 1786 | manager_set_first_boot(m, empty_etc); |
27d340c7 | 1787 | |
bf4df7c3 | 1788 | /* Remember whether we should queue the default job */ |
d3b1c508 | 1789 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 1790 | |
9d76d730 LP |
1791 | before_startup = now(CLOCK_MONOTONIC); |
1792 | ||
d3b1c508 | 1793 | r = manager_startup(m, arg_serialization, fds); |
e96d6be7 | 1794 | if (r < 0) |
da927ba9 | 1795 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
a16e1123 | 1796 | |
bf4df7c3 LP |
1797 | /* This will close all file descriptors that were opened, but |
1798 | * not claimed by any unit. */ | |
2feceb5e | 1799 | fds = fdset_free(fds); |
f50e0a01 | 1800 | |
74ca738f | 1801 | arg_serialization = safe_fclose(arg_serialization); |
bf4df7c3 LP |
1802 | |
1803 | if (queue_default_job) { | |
4afd3348 | 1804 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
1c27d3f3 | 1805 | Unit *target = NULL; |
bacbccb7 | 1806 | Job *default_unit_job; |
398ef8ba | 1807 | |
fa0f4d8a | 1808 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1809 | |
e96d6be7 | 1810 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
718db961 LP |
1811 | if (r < 0) |
1812 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1813 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
c33b3297 | 1814 | log_error_errno(target->load_error, "Failed to load default target: %m"); |
ac155bb8 | 1815 | else if (target->load_state == UNIT_MASKED) |
6daf4f90 | 1816 | log_error("Default target masked."); |
27b14a22 | 1817 | |
ac155bb8 | 1818 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1819 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1820 | |
e96d6be7 LP |
1821 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1822 | if (r < 0) { | |
4104970e | 1823 | log_emergency("Failed to load rescue target: %s", bus_error_message(&error, r)); |
cb6531be | 1824 | error_message = "Failed to load rescue target"; |
a16e1123 | 1825 | goto finish; |
11ddb6f4 | 1826 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
c33b3297 | 1827 | log_emergency_errno(target->load_error, "Failed to load rescue target: %m"); |
cb6531be | 1828 | error_message = "Failed to load rescue target"; |
1c27d3f3 | 1829 | goto finish; |
ac155bb8 | 1830 | } else if (target->load_state == UNIT_MASKED) { |
4104970e | 1831 | log_emergency("Rescue target masked."); |
cb6531be | 1832 | error_message = "Rescue target masked"; |
00dc5d76 | 1833 | goto finish; |
a16e1123 LP |
1834 | } |
1835 | } | |
37d88da7 | 1836 | |
ac155bb8 | 1837 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1838 | |
fa0f4d8a | 1839 | if (arg_action == ACTION_TEST) { |
40d50879 | 1840 | printf("-> By units:\n"); |
a16e1123 LP |
1841 | manager_dump_units(m, stdout, "\t"); |
1842 | } | |
1843 | ||
4bd29fe5 | 1844 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, &error, &default_unit_job); |
ab17a050 | 1845 | if (r == -EPERM) { |
718db961 | 1846 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
ab17a050 | 1847 | |
5022ce71 LP |
1848 | sd_bus_error_free(&error); |
1849 | ||
4bd29fe5 | 1850 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, &error, &default_unit_job); |
ab17a050 | 1851 | if (r < 0) { |
4104970e | 1852 | log_emergency("Failed to start default target: %s", bus_error_message(&error, r)); |
cb6531be | 1853 | error_message = "Failed to start default target"; |
ab17a050 LP |
1854 | goto finish; |
1855 | } | |
1856 | } else if (r < 0) { | |
4104970e | 1857 | log_emergency("Failed to isolate default target: %s", bus_error_message(&error, r)); |
cb6531be | 1858 | error_message = "Failed to isolate default target"; |
37d88da7 LP |
1859 | goto finish; |
1860 | } | |
ab17a050 | 1861 | |
bacbccb7 | 1862 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1863 | |
07672f49 LP |
1864 | after_startup = now(CLOCK_MONOTONIC); |
1865 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1866 | "Loaded units and determined initial transaction in %s.", | |
fdb14b7e | 1867 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 100 * USEC_PER_MSEC)); |
07672f49 | 1868 | |
fa0f4d8a | 1869 | if (arg_action == ACTION_TEST) { |
40d50879 | 1870 | printf("-> By jobs:\n"); |
a16e1123 | 1871 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1872 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1873 | goto finish; |
1874 | } | |
e965d56d | 1875 | } |
d46de8a1 | 1876 | |
a16e1123 | 1877 | for (;;) { |
e96d6be7 LP |
1878 | r = manager_loop(m); |
1879 | if (r < 0) { | |
da927ba9 | 1880 | log_emergency_errno(r, "Failed to run main loop: %m"); |
cb6531be | 1881 | error_message = "Failed to run main loop"; |
a16e1123 LP |
1882 | goto finish; |
1883 | } | |
11dd41ce | 1884 | |
a16e1123 | 1885 | switch (m->exit_code) { |
e965d56d | 1886 | |
a16e1123 | 1887 | case MANAGER_RELOAD: |
e015090f | 1888 | log_info("Reloading."); |
06af2a04 TB |
1889 | |
1890 | r = parse_config_file(); | |
1891 | if (r < 0) | |
1892 | log_error("Failed to parse config file."); | |
1893 | ||
1894 | manager_set_defaults(m); | |
1895 | ||
e96d6be7 LP |
1896 | r = manager_reload(m); |
1897 | if (r < 0) | |
da927ba9 | 1898 | log_error_errno(r, "Failed to reload: %m"); |
a16e1123 | 1899 | break; |
cea8e32e | 1900 | |
a16e1123 | 1901 | case MANAGER_REEXECUTE: |
664f88a7 | 1902 | |
cb6531be | 1903 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) { |
6b9af963 | 1904 | error_message = "Failed to prepare for reexecution"; |
a16e1123 | 1905 | goto finish; |
cb6531be | 1906 | } |
60918275 | 1907 | |
a16e1123 | 1908 | reexecute = true; |
e015090f | 1909 | log_notice("Reexecuting."); |
a16e1123 LP |
1910 | goto finish; |
1911 | ||
664f88a7 LP |
1912 | case MANAGER_SWITCH_ROOT: |
1913 | /* Steal the switch root parameters */ | |
41669317 | 1914 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1915 | switch_root_init = m->switch_root_init; |
1916 | m->switch_root = m->switch_root_init = NULL; | |
1917 | ||
1918 | if (!switch_root_init) | |
cb6531be | 1919 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) { |
6b9af963 | 1920 | error_message = "Failed to prepare for reexecution"; |
664f88a7 | 1921 | goto finish; |
cb6531be | 1922 | } |
664f88a7 LP |
1923 | |
1924 | reexecute = true; | |
1925 | log_notice("Switching root."); | |
1926 | goto finish; | |
1927 | ||
287419c1 | 1928 | case MANAGER_EXIT: |
97792515 LP |
1929 | retval = m->return_value; |
1930 | ||
463d0d15 | 1931 | if (MANAGER_IS_USER(m)) { |
8ebfe0cb DH |
1932 | log_debug("Exit."); |
1933 | goto finish; | |
1934 | } | |
1935 | ||
1936 | /* fallthrough */ | |
b9080b03 FF |
1937 | case MANAGER_REBOOT: |
1938 | case MANAGER_POWEROFF: | |
1939 | case MANAGER_HALT: | |
1940 | case MANAGER_KEXEC: { | |
1941 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
287419c1 | 1942 | [MANAGER_EXIT] = "exit", |
b9080b03 FF |
1943 | [MANAGER_REBOOT] = "reboot", |
1944 | [MANAGER_POWEROFF] = "poweroff", | |
1945 | [MANAGER_HALT] = "halt", | |
1946 | [MANAGER_KEXEC] = "kexec" | |
1947 | }; | |
1948 | ||
1949 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1950 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1951 | |
1952 | log_notice("Shutting down."); | |
1953 | goto finish; | |
1954 | } | |
1955 | ||
a16e1123 LP |
1956 | default: |
1957 | assert_not_reached("Unknown exit code."); | |
1958 | } | |
1959 | } | |
f170852a | 1960 | |
60918275 | 1961 | finish: |
b87c2aa6 ZJS |
1962 | pager_close(); |
1963 | ||
97792515 | 1964 | if (m) |
81f5fc2d | 1965 | arg_shutdown_watchdog = m->shutdown_watchdog; |
fe382237 | 1966 | |
06d8d842 | 1967 | m = manager_free(m); |
60918275 | 1968 | |
1f6b4113 | 1969 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) |
a1e58e8e | 1970 | arg_default_rlimit[j] = mfree(arg_default_rlimit[j]); |
c93ff2e9 | 1971 | |
97b11eed | 1972 | arg_default_unit = mfree(arg_default_unit); |
fe382237 | 1973 | arg_join_controllers = strv_free_free(arg_join_controllers); |
97b11eed | 1974 | arg_default_environment = strv_free(arg_default_environment); |
525d3cc7 | 1975 | arg_syscall_archs = set_free(arg_syscall_archs); |
d3b1c508 | 1976 | |
cc56fafe | 1977 | mac_selinux_finish(); |
b2bb3dbe | 1978 | |
a16e1123 | 1979 | if (reexecute) { |
664f88a7 | 1980 | const char **args; |
e564a982 | 1981 | unsigned i, args_size; |
a16e1123 | 1982 | |
664f88a7 LP |
1983 | /* Close and disarm the watchdog, so that the new |
1984 | * instance can reinitialize it, but doesn't get | |
1985 | * rebooted while we do that */ | |
1986 | watchdog_close(true); | |
a16e1123 | 1987 | |
4096d6f5 LP |
1988 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1989 | * that the new systemd can pass the kernel default to | |
1990 | * its child processes */ | |
1991 | if (saved_rlimit_nofile.rlim_cur > 0) | |
92ca4cac | 1992 | (void) setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); |
4096d6f5 | 1993 | |
41669317 | 1994 | if (switch_root_dir) { |
cee530bb LP |
1995 | /* Kill all remaining processes from the |
1996 | * initrd, but don't wait for them, so that we | |
1997 | * can handle the SIGCHLD for them after | |
1998 | * deserializing. */ | |
0bee65f0 | 1999 | broadcast_signal(SIGTERM, false, true); |
bd3fa1d2 | 2000 | |
5a4bf02f HH |
2001 | /* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */ |
2002 | r = switch_root(switch_root_dir, "/mnt", true, MS_MOVE); | |
41669317 | 2003 | if (r < 0) |
da927ba9 | 2004 | log_error_errno(r, "Failed to switch root, trying to continue: %m"); |
41669317 | 2005 | } |
a16e1123 | 2006 | |
affd7ed1 FB |
2007 | /* Reopen the console */ |
2008 | (void) make_console_stdio(); | |
2009 | ||
d03bc1b8 | 2010 | args_size = MAX(6, argc+1); |
e564a982 | 2011 | args = newa(const char*, args_size); |
a16e1123 | 2012 | |
664f88a7 | 2013 | if (!switch_root_init) { |
5ffa8c81 | 2014 | char sfd[DECIMAL_STR_MAX(int) + 1]; |
a16e1123 | 2015 | |
664f88a7 LP |
2016 | /* First try to spawn ourselves with the right |
2017 | * path, and with full serialization. We do | |
2018 | * this only if the user didn't specify an | |
2019 | * explicit init to spawn. */ | |
edb9aaa8 | 2020 | |
d3b1c508 | 2021 | assert(arg_serialization); |
664f88a7 | 2022 | assert(fds); |
edb9aaa8 | 2023 | |
5ffa8c81 | 2024 | xsprintf(sfd, "%i", fileno(arg_serialization)); |
edb9aaa8 | 2025 | |
664f88a7 LP |
2026 | i = 0; |
2027 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 2028 | if (switch_root_dir) |
2660882b | 2029 | args[i++] = "--switched-root"; |
463d0d15 | 2030 | args[i++] = arg_system ? "--system" : "--user"; |
664f88a7 LP |
2031 | args[i++] = "--deserialize"; |
2032 | args[i++] = sfd; | |
2033 | args[i++] = NULL; | |
edb9aaa8 | 2034 | |
e564a982 | 2035 | assert(i <= args_size); |
dcadc967 EV |
2036 | |
2037 | /* | |
2038 | * We want valgrind to print its memory usage summary before reexecution. | |
2039 | * Valgrind won't do this is on its own on exec(), but it will do it on exit(). | |
2040 | * Hence, to ensure we get a summary here, fork() off a child, let it exit() cleanly, | |
2041 | * so that it prints the summary, and wait() for it in the parent, before proceeding into the exec(). | |
2042 | */ | |
2043 | valgrind_summary_hack(); | |
2044 | ||
92ca4cac | 2045 | (void) execv(args[0], (char* const*) args); |
664f88a7 | 2046 | } |
6e98720f | 2047 | |
664f88a7 LP |
2048 | /* Try the fallback, if there is any, without any |
2049 | * serialization. We pass the original argv[] and | |
2050 | * envp[]. (Well, modulo the ordering changes due to | |
2051 | * getopt() in argv[], and some cleanups in envp[], | |
2052 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 2053 | |
74ca738f | 2054 | arg_serialization = safe_fclose(arg_serialization); |
2feceb5e | 2055 | fds = fdset_free(fds); |
a16e1123 | 2056 | |
d3b1c508 | 2057 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
664f88a7 | 2058 | args[i++] = argv[j]; |
a16e1123 | 2059 | args[i++] = NULL; |
e564a982 | 2060 | assert(i <= args_size); |
b8f83232 | 2061 | |
1b6d7fa7 | 2062 | /* Reenable any blocked signals, especially important |
5a85ca1c | 2063 | * if we switch from initial ramdisk to init=... */ |
ce30c8dc LP |
2064 | (void) reset_all_signal_handlers(); |
2065 | (void) reset_signal_mask(); | |
5a85ca1c | 2066 | |
b8f83232 LP |
2067 | if (switch_root_init) { |
2068 | args[0] = switch_root_init; | |
92ca4cac | 2069 | (void) execv(args[0], (char* const*) args); |
56f64d95 | 2070 | log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m"); |
b8f83232 LP |
2071 | } |
2072 | ||
2073 | args[0] = "/sbin/init"; | |
92ca4cac | 2074 | (void) execv(args[0], (char* const*) args); |
a16e1123 | 2075 | |
745e2fb7 KS |
2076 | if (errno == ENOENT) { |
2077 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 2078 | |
745e2fb7 KS |
2079 | args[0] = "/bin/sh"; |
2080 | args[1] = NULL; | |
92ca4cac | 2081 | (void) execv(args[0], (char* const*) args); |
56f64d95 | 2082 | log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m"); |
745e2fb7 | 2083 | } else |
56f64d95 | 2084 | log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m"); |
a16e1123 LP |
2085 | } |
2086 | ||
74ca738f | 2087 | arg_serialization = safe_fclose(arg_serialization); |
2feceb5e | 2088 | fds = fdset_free(fds); |
a16e1123 | 2089 | |
54b434b1 LP |
2090 | #ifdef HAVE_VALGRIND_VALGRIND_H |
2091 | /* If we are PID 1 and running under valgrind, then let's exit | |
2092 | * here explicitly. valgrind will only generate nice output on | |
2093 | * exit(), not on exec(), hence let's do the former not the | |
2094 | * latter here. */ | |
2095 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
2096 | return 0; | |
2097 | #endif | |
2098 | ||
b9080b03 | 2099 | if (shutdown_verb) { |
b1e90ec5 | 2100 | char log_level[DECIMAL_STR_MAX(int) + 1]; |
287419c1 AC |
2101 | char exit_code[DECIMAL_STR_MAX(uint8_t) + 1]; |
2102 | const char* command_line[11] = { | |
b9080b03 FF |
2103 | SYSTEMD_SHUTDOWN_BINARY_PATH, |
2104 | shutdown_verb, | |
b1e90ec5 ZJS |
2105 | "--log-level", log_level, |
2106 | "--log-target", | |
b9080b03 | 2107 | }; |
b1e90ec5 | 2108 | unsigned pos = 5; |
e3e45d4f | 2109 | _cleanup_strv_free_ char **env_block = NULL; |
15bd5aee LP |
2110 | |
2111 | assert(command_line[pos] == NULL); | |
e3e45d4f | 2112 | env_block = strv_copy(environ); |
b9080b03 | 2113 | |
5ffa8c81 | 2114 | xsprintf(log_level, "%d", log_get_max_level()); |
b1e90ec5 ZJS |
2115 | |
2116 | switch (log_get_target()) { | |
92ca4cac | 2117 | |
b1e90ec5 ZJS |
2118 | case LOG_TARGET_KMSG: |
2119 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
2120 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
2121 | command_line[pos++] = "kmsg"; | |
2122 | break; | |
2123 | ||
10f00ff1 ILG |
2124 | case LOG_TARGET_NULL: |
2125 | command_line[pos++] = "null"; | |
2126 | break; | |
2127 | ||
b1e90ec5 ZJS |
2128 | case LOG_TARGET_CONSOLE: |
2129 | default: | |
2130 | command_line[pos++] = "console"; | |
2131 | break; | |
2132 | }; | |
2133 | ||
2134 | if (log_get_show_color()) | |
2135 | command_line[pos++] = "--log-color"; | |
2136 | ||
2137 | if (log_get_show_location()) | |
2138 | command_line[pos++] = "--log-location"; | |
2139 | ||
287419c1 AC |
2140 | if (streq(shutdown_verb, "exit")) { |
2141 | command_line[pos++] = "--exit-code"; | |
2142 | command_line[pos++] = exit_code; | |
97792515 | 2143 | xsprintf(exit_code, "%d", retval); |
287419c1 AC |
2144 | } |
2145 | ||
26abdc73 | 2146 | assert(pos < ELEMENTSOF(command_line)); |
b1e90ec5 | 2147 | |
5146c619 | 2148 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0 && arg_shutdown_watchdog != USEC_INFINITY) { |
e3e45d4f | 2149 | char *e; |
d18f337c | 2150 | |
e96d6be7 LP |
2151 | /* If we reboot let's set the shutdown |
2152 | * watchdog and tell the shutdown binary to | |
2153 | * repeatedly ping it */ | |
c2cc6b9a LP |
2154 | r = watchdog_set_timeout(&arg_shutdown_watchdog); |
2155 | watchdog_close(r < 0); | |
e96d6be7 | 2156 | |
e3e45d4f SP |
2157 | /* Tell the binary how often to ping, ignore failure */ |
2158 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
92ca4cac | 2159 | (void) strv_push(&env_block, e); |
e3e45d4f | 2160 | } else |
e96d6be7 LP |
2161 | watchdog_close(true); |
2162 | ||
66713f77 LP |
2163 | /* Avoid the creation of new processes forked by the |
2164 | * kernel; at this point, we will not listen to the | |
2165 | * signals anyway */ | |
75f86906 | 2166 | if (detect_container() <= 0) |
e155a0aa | 2167 | (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); |
ad929bcc | 2168 | |
d18f337c | 2169 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
56f64d95 | 2170 | log_error_errno(errno, "Failed to execute shutdown binary, %s: %m", |
b1e90ec5 | 2171 | getpid() == 1 ? "freezing" : "quitting"); |
b9080b03 FF |
2172 | } |
2173 | ||
cb6531be ZJS |
2174 | if (getpid() == 1) { |
2175 | if (error_message) | |
2176 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
1fc464f6 | 2177 | ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL, |
cb6531be | 2178 | "%s, freezing.", error_message); |
b9e74c39 | 2179 | freeze_or_reboot(); |
cb6531be | 2180 | } |
c3b3c274 | 2181 | |
60918275 LP |
2182 | return retval; |
2183 | } |