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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, |
494294d6 | 95 | ACTION_DUMP_CONFIGURATION_ITEMS |
fa0f4d8a | 96 | } arg_action = ACTION_RUN; |
fa0f4d8a | 97 | static char *arg_default_unit = NULL; |
463d0d15 | 98 | static bool arg_system = false; |
fa0f4d8a | 99 | static bool arg_dump_core = true; |
fa0f4d8a | 100 | static int arg_crash_chvt = -1; |
b9e74c39 LP |
101 | static bool arg_crash_shell = false; |
102 | static bool arg_crash_reboot = false; | |
fa0f4d8a | 103 | static bool arg_confirm_spawn = false; |
b6e2f329 | 104 | static ShowStatus arg_show_status = _SHOW_STATUS_UNSET; |
bf4df7c3 | 105 | static bool arg_switched_root = false; |
ea4b98e6 | 106 | static bool arg_no_pager = false; |
0c85a4f3 | 107 | static char ***arg_join_controllers = NULL; |
706343f4 | 108 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 109 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
1f19a534 OS |
110 | static usec_t arg_default_restart_usec = DEFAULT_RESTART_USEC; |
111 | static usec_t arg_default_timeout_start_usec = DEFAULT_TIMEOUT_USEC; | |
112 | static usec_t arg_default_timeout_stop_usec = DEFAULT_TIMEOUT_USEC; | |
3f41e1e5 LN |
113 | static usec_t arg_default_start_limit_interval = DEFAULT_START_LIMIT_INTERVAL; |
114 | static unsigned arg_default_start_limit_burst = DEFAULT_START_LIMIT_BURST; | |
e96d6be7 LP |
115 | static usec_t arg_runtime_watchdog = 0; |
116 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
97d0e5f8 | 117 | static char **arg_default_environment = NULL; |
517d56b1 | 118 | static struct rlimit *arg_default_rlimit[_RLIMIT_MAX] = {}; |
a103496c | 119 | static uint64_t arg_capability_bounding_set = CAP_ALL; |
3a43da28 | 120 | static nsec_t arg_timer_slack_nsec = NSEC_INFINITY; |
bd8f585b | 121 | static usec_t arg_default_timer_accuracy_usec = 1 * USEC_PER_MINUTE; |
d3b1c508 LP |
122 | static Set* arg_syscall_archs = NULL; |
123 | static FILE* arg_serialization = NULL; | |
085afe36 | 124 | static bool arg_default_cpu_accounting = false; |
13c31542 | 125 | static bool arg_default_io_accounting = false; |
085afe36 LP |
126 | static bool arg_default_blockio_accounting = false; |
127 | static bool arg_default_memory_accounting = false; | |
9ded9cd1 | 128 | static bool arg_default_tasks_accounting = true; |
79baeeb9 | 129 | static uint64_t arg_default_tasks_max = UINT64_MAX; |
ee48dbd5 | 130 | static sd_id128_t arg_machine_id = {}; |
4fc935ca | 131 | |
b9e74c39 LP |
132 | noreturn static void freeze_or_reboot(void) { |
133 | ||
134 | if (arg_crash_reboot) { | |
135 | log_notice("Rebooting in 10s..."); | |
136 | (void) sleep(10); | |
137 | ||
138 | log_notice("Rebooting now..."); | |
139 | (void) reboot(RB_AUTOBOOT); | |
140 | log_emergency_errno(errno, "Failed to reboot: %m"); | |
141 | } | |
142 | ||
143 | log_emergency("Freezing execution."); | |
144 | freeze(); | |
145 | } | |
146 | ||
919ce0b7 | 147 | noreturn static void crash(int sig) { |
7d06dad9 MS |
148 | struct sigaction sa; |
149 | pid_t pid; | |
97c4f35c | 150 | |
abb26902 LP |
151 | if (getpid() != 1) |
152 | /* Pass this on immediately, if this is not PID 1 */ | |
92ca4cac | 153 | (void) raise(sig); |
abb26902 | 154 | else if (!arg_dump_core) |
4104970e | 155 | log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 156 | else { |
7d06dad9 | 157 | sa = (struct sigaction) { |
189d5bac | 158 | .sa_handler = nop_signal_handler, |
b92bea5d ZJS |
159 | .sa_flags = SA_NOCLDSTOP|SA_RESTART, |
160 | }; | |
97c4f35c | 161 | |
6f5e3f35 | 162 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
92ca4cac | 163 | (void) sigaction(SIGCHLD, &sa, NULL); |
6f5e3f35 | 164 | |
8869a0b4 | 165 | pid = raw_clone(SIGCHLD); |
e62d8c39 | 166 | if (pid < 0) |
56f64d95 | 167 | log_emergency_errno(errno, "Caught <%s>, cannot fork for core dump: %m", signal_to_string(sig)); |
97c4f35c | 168 | else if (pid == 0) { |
97c4f35c | 169 | /* Enable default signal handler for core dump */ |
15a90032 | 170 | |
92ca4cac LP |
171 | sa = (struct sigaction) { |
172 | .sa_handler = SIG_DFL, | |
173 | }; | |
174 | (void) sigaction(sig, &sa, NULL); | |
97c4f35c | 175 | |
15a90032 LP |
176 | /* Don't limit the coredump size */ |
177 | (void) setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)); | |
97c4f35c LP |
178 | |
179 | /* Just to be sure... */ | |
e62d9b81 | 180 | (void) chdir("/"); |
97c4f35c LP |
181 | |
182 | /* Raise the signal again */ | |
ee05e779 | 183 | pid = raw_getpid(); |
92ca4cac | 184 | (void) kill(pid, sig); /* raise() would kill the parent */ |
97c4f35c LP |
185 | |
186 | assert_not_reached("We shouldn't be here..."); | |
92ca4cac | 187 | _exit(EXIT_FAILURE); |
4fc935ca | 188 | } else { |
8e12a6ae LP |
189 | siginfo_t status; |
190 | int r; | |
4fc935ca LP |
191 | |
192 | /* Order things nicely. */ | |
e62d8c39 ZJS |
193 | r = wait_for_terminate(pid, &status); |
194 | if (r < 0) | |
da927ba9 | 195 | log_emergency_errno(r, "Caught <%s>, waitpid() failed: %m", signal_to_string(sig)); |
8e12a6ae | 196 | else if (status.si_code != CLD_DUMPED) |
ee05e779 ZJS |
197 | log_emergency("Caught <%s>, core dump failed (child "PID_FMT", code=%s, status=%i/%s).", |
198 | signal_to_string(sig), | |
199 | pid, sigchld_code_to_string(status.si_code), | |
200 | status.si_status, | |
201 | strna(status.si_code == CLD_EXITED | |
202 | ? exit_status_to_string(status.si_status, EXIT_STATUS_FULL) | |
203 | : signal_to_string(status.si_status))); | |
4fc935ca | 204 | else |
4104970e | 205 | log_emergency("Caught <%s>, dumped core as pid "PID_FMT".", signal_to_string(sig), pid); |
97c4f35c LP |
206 | } |
207 | } | |
208 | ||
b9e74c39 | 209 | if (arg_crash_chvt >= 0) |
92ca4cac | 210 | (void) chvt(arg_crash_chvt); |
601f6a1e | 211 | |
7d06dad9 MS |
212 | sa = (struct sigaction) { |
213 | .sa_handler = SIG_IGN, | |
214 | .sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART, | |
215 | }; | |
216 | ||
217 | /* Let the kernel reap children for us */ | |
218 | (void) sigaction(SIGCHLD, &sa, NULL); | |
8c43883a | 219 | |
7d06dad9 | 220 | if (arg_crash_shell) { |
b9e74c39 | 221 | log_notice("Executing crash shell in 10s..."); |
92ca4cac | 222 | (void) sleep(10); |
4fc935ca | 223 | |
8869a0b4 | 224 | pid = raw_clone(SIGCHLD); |
cd3bd60a | 225 | if (pid < 0) |
56f64d95 | 226 | log_emergency_errno(errno, "Failed to fork off crash shell: %m"); |
6f5e3f35 | 227 | else if (pid == 0) { |
b9e74c39 | 228 | (void) setsid(); |
92ca4cac LP |
229 | (void) make_console_stdio(); |
230 | (void) execle("/bin/sh", "/bin/sh", NULL, environ); | |
6f5e3f35 | 231 | |
ee05e779 | 232 | log_emergency_errno(errno, "execle() failed: %m"); |
92ca4cac | 233 | _exit(EXIT_FAILURE); |
b9e74c39 LP |
234 | } else { |
235 | log_info("Spawned crash shell as PID "PID_FMT".", pid); | |
4cf0b03b | 236 | (void) wait_for_terminate(pid, NULL); |
b9e74c39 | 237 | } |
4fc935ca LP |
238 | } |
239 | ||
b9e74c39 | 240 | freeze_or_reboot(); |
97c4f35c LP |
241 | } |
242 | ||
243 | static void install_crash_handler(void) { | |
297d563d | 244 | static const struct sigaction sa = { |
b92bea5d | 245 | .sa_handler = crash, |
297d563d | 246 | .sa_flags = SA_NODEFER, /* So that we can raise the signal again from the signal handler */ |
b92bea5d | 247 | }; |
297d563d | 248 | int r; |
97c4f35c | 249 | |
297d563d LP |
250 | /* We ignore the return value here, since, we don't mind if we |
251 | * cannot set up a crash handler */ | |
252 | r = sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); | |
253 | if (r < 0) | |
254 | log_debug_errno(r, "I had trouble setting up the crash handler, ignoring: %m"); | |
97c4f35c | 255 | } |
f170852a | 256 | |
56d96fc0 LP |
257 | static int console_setup(void) { |
258 | _cleanup_close_ int tty_fd = -1; | |
259 | int r; | |
80876c20 | 260 | |
512947d4 | 261 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
23bbb0de MS |
262 | if (tty_fd < 0) |
263 | return log_error_errno(tty_fd, "Failed to open /dev/console: %m"); | |
80876c20 | 264 | |
56d96fc0 LP |
265 | /* We don't want to force text mode. plymouth may be showing |
266 | * pictures already from initrd. */ | |
512947d4 | 267 | r = reset_terminal_fd(tty_fd, false); |
23bbb0de MS |
268 | if (r < 0) |
269 | return log_error_errno(r, "Failed to reset /dev/console: %m"); | |
843d2643 | 270 | |
56d96fc0 | 271 | return 0; |
80876c20 LP |
272 | } |
273 | ||
b9e74c39 LP |
274 | static int parse_crash_chvt(const char *value) { |
275 | int b; | |
276 | ||
277 | if (safe_atoi(value, &arg_crash_chvt) >= 0) | |
278 | return 0; | |
279 | ||
280 | b = parse_boolean(value); | |
281 | if (b < 0) | |
282 | return b; | |
283 | ||
284 | if (b > 0) | |
285 | arg_crash_chvt = 0; /* switch to where kmsg goes */ | |
286 | else | |
287 | arg_crash_chvt = -1; /* turn off switching */ | |
288 | ||
289 | return 0; | |
290 | } | |
291 | ||
ee48dbd5 | 292 | static int set_machine_id(const char *m) { |
e042eab7 | 293 | sd_id128_t t; |
8b26cdbd | 294 | assert(m); |
ee48dbd5 | 295 | |
e042eab7 | 296 | if (sd_id128_from_string(m, &t) < 0) |
ee48dbd5 NC |
297 | return -EINVAL; |
298 | ||
e042eab7 | 299 | if (sd_id128_is_null(t)) |
ee48dbd5 NC |
300 | return -EINVAL; |
301 | ||
e042eab7 | 302 | arg_machine_id = t; |
ee48dbd5 NC |
303 | return 0; |
304 | } | |
305 | ||
059cb385 | 306 | static int parse_proc_cmdline_item(const char *key, const char *value) { |
f170852a | 307 | |
059cb385 | 308 | int r; |
f170852a | 309 | |
059cb385 | 310 | assert(key); |
5192bd19 | 311 | |
059cb385 | 312 | if (streq(key, "systemd.unit") && value) { |
bf4df7c3 LP |
313 | |
314 | if (!in_initrd()) | |
e6e242ad | 315 | return free_and_strdup(&arg_default_unit, value); |
bf4df7c3 | 316 | |
059cb385 | 317 | } else if (streq(key, "rd.systemd.unit") && value) { |
bf4df7c3 | 318 | |
ca05941b | 319 | if (in_initrd()) |
e6e242ad | 320 | return free_and_strdup(&arg_default_unit, value); |
f170852a | 321 | |
059cb385 | 322 | } else if (streq(key, "systemd.dump_core") && value) { |
4fc935ca | 323 | |
059cb385 | 324 | r = parse_boolean(value); |
fb472900 | 325 | if (r < 0) |
059cb385 | 326 | log_warning("Failed to parse dump core switch %s. Ignoring.", value); |
4fc935ca | 327 | else |
fa0f4d8a | 328 | arg_dump_core = r; |
4fc935ca | 329 | |
b9e74c39 LP |
330 | } else if (streq(key, "systemd.crash_chvt") && value) { |
331 | ||
332 | if (parse_crash_chvt(value) < 0) | |
333 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", value); | |
334 | ||
059cb385 | 335 | } else if (streq(key, "systemd.crash_shell") && value) { |
4fc935ca | 336 | |
059cb385 | 337 | r = parse_boolean(value); |
fb472900 | 338 | if (r < 0) |
059cb385 | 339 | log_warning("Failed to parse crash shell switch %s. Ignoring.", value); |
4fc935ca | 340 | else |
fa0f4d8a | 341 | arg_crash_shell = r; |
5e7ee61c | 342 | |
b9e74c39 | 343 | } else if (streq(key, "systemd.crash_reboot") && value) { |
5e7ee61c | 344 | |
b9e74c39 LP |
345 | r = parse_boolean(value); |
346 | if (r < 0) | |
347 | log_warning("Failed to parse crash reboot switch %s. Ignoring.", value); | |
5e7ee61c | 348 | else |
b9e74c39 | 349 | arg_crash_reboot = r; |
5e7ee61c | 350 | |
059cb385 | 351 | } else if (streq(key, "systemd.confirm_spawn") && value) { |
601f6a1e | 352 | |
059cb385 LP |
353 | r = parse_boolean(value); |
354 | if (r < 0) | |
355 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", value); | |
601f6a1e | 356 | else |
059cb385 | 357 | arg_confirm_spawn = r; |
601f6a1e | 358 | |
059cb385 | 359 | } else if (streq(key, "systemd.show_status") && value) { |
9e58ff9c | 360 | |
059cb385 | 361 | r = parse_show_status(value, &arg_show_status); |
d450b6f2 | 362 | if (r < 0) |
059cb385 LP |
363 | log_warning("Failed to parse show status switch %s. Ignoring.", value); |
364 | ||
365 | } else if (streq(key, "systemd.default_standard_output") && value) { | |
0a494f1f | 366 | |
059cb385 | 367 | r = exec_output_from_string(value); |
fb472900 | 368 | if (r < 0) |
059cb385 | 369 | log_warning("Failed to parse default standard output switch %s. Ignoring.", value); |
0a494f1f LP |
370 | else |
371 | arg_default_std_output = r; | |
0a494f1f | 372 | |
059cb385 LP |
373 | } else if (streq(key, "systemd.default_standard_error") && value) { |
374 | ||
375 | r = exec_output_from_string(value); | |
fb472900 | 376 | if (r < 0) |
059cb385 | 377 | log_warning("Failed to parse default standard error switch %s. Ignoring.", value); |
0a494f1f LP |
378 | else |
379 | arg_default_std_error = r; | |
9e7c5357 | 380 | |
059cb385 LP |
381 | } else if (streq(key, "systemd.setenv") && value) { |
382 | ||
383 | if (env_assignment_is_valid(value)) { | |
e21fea24 KS |
384 | char **env; |
385 | ||
059cb385 | 386 | env = strv_env_set(arg_default_environment, value); |
e21fea24 KS |
387 | if (env) |
388 | arg_default_environment = env; | |
389 | else | |
279d3c9c | 390 | log_warning_errno(ENOMEM, "Setting environment variable '%s' failed, ignoring: %m", value); |
e21fea24 | 391 | } else |
059cb385 | 392 | log_warning("Environment variable name '%s' is not valid. Ignoring.", value); |
9e58ff9c | 393 | |
ee48dbd5 NC |
394 | } else if (streq(key, "systemd.machine_id") && value) { |
395 | ||
396 | r = set_machine_id(value); | |
397 | if (r < 0) | |
398 | log_warning("MachineID '%s' is not valid. Ignoring.", value); | |
399 | ||
059cb385 | 400 | } else if (streq(key, "quiet") && !value) { |
d7b15e0a | 401 | |
b6e2f329 | 402 | if (arg_show_status == _SHOW_STATUS_UNSET) |
d450b6f2 | 403 | arg_show_status = SHOW_STATUS_AUTO; |
059cb385 LP |
404 | |
405 | } else if (streq(key, "debug") && !value) { | |
d7b15e0a | 406 | |
1de1c9c3 LP |
407 | /* Note that log_parse_environment() handles 'debug' |
408 | * too, and sets the log level to LOG_DEBUG. */ | |
d7b15e0a | 409 | |
75f86906 | 410 | if (detect_container() > 0) |
b2103dcc | 411 | log_set_target(LOG_TARGET_CONSOLE); |
059cb385 | 412 | |
dcd61450 | 413 | } else if (!value) { |
e2c9a131 | 414 | const char *target; |
f170852a LP |
415 | |
416 | /* SysV compatibility */ | |
e2c9a131 EV |
417 | target = runlevel_to_target(key); |
418 | if (target) | |
419 | return free_and_strdup(&arg_default_unit, target); | |
959718c6 TB |
420 | |
421 | } else if (streq(key, "systemd.default_timeout_start_sec") && value) { | |
422 | ||
423 | r = parse_sec(value, &arg_default_timeout_start_usec); | |
424 | if (r < 0) | |
425 | log_warning_errno(r, "Failed to parse default start timeout: %s, ignoring.", value); | |
426 | ||
427 | if (arg_default_timeout_start_usec <= 0) | |
428 | arg_default_timeout_start_usec = USEC_INFINITY; | |
f170852a LP |
429 | } |
430 | ||
431 | return 0; | |
432 | } | |
433 | ||
e8e581bf ZJS |
434 | #define DEFINE_SETTER(name, func, descr) \ |
435 | static int name(const char *unit, \ | |
436 | const char *filename, \ | |
437 | unsigned line, \ | |
438 | const char *section, \ | |
71a61510 | 439 | unsigned section_line, \ |
e8e581bf ZJS |
440 | const char *lvalue, \ |
441 | int ltype, \ | |
442 | const char *rvalue, \ | |
443 | void *data, \ | |
444 | void *userdata) { \ | |
445 | \ | |
446 | int r; \ | |
447 | \ | |
448 | assert(filename); \ | |
449 | assert(lvalue); \ | |
450 | assert(rvalue); \ | |
451 | \ | |
452 | r = func(rvalue); \ | |
453 | if (r < 0) \ | |
d1cefe0a LP |
454 | log_syntax(unit, LOG_ERR, filename, line, r, \ |
455 | "Invalid " descr "'%s': %m", \ | |
456 | rvalue); \ | |
e8e581bf ZJS |
457 | \ |
458 | return 0; \ | |
459 | } | |
487393e9 | 460 | |
e8e581bf ZJS |
461 | DEFINE_SETTER(config_parse_level2, log_set_max_level_from_string, "log level") |
462 | DEFINE_SETTER(config_parse_target, log_set_target_from_string, "target") | |
463 | DEFINE_SETTER(config_parse_color, log_show_color_from_string, "color" ) | |
464 | DEFINE_SETTER(config_parse_location, log_show_location_from_string, "location") | |
487393e9 | 465 | |
4d7213b2 LP |
466 | static int config_parse_cpu_affinity2( |
467 | const char *unit, | |
468 | const char *filename, | |
469 | unsigned line, | |
470 | const char *section, | |
471 | unsigned section_line, | |
472 | const char *lvalue, | |
473 | int ltype, | |
474 | const char *rvalue, | |
475 | void *data, | |
476 | void *userdata) { | |
487393e9 | 477 | |
4b40bc38 | 478 | _cleanup_cpu_free_ cpu_set_t *c = NULL; |
f5c72b73 | 479 | int ncpus; |
487393e9 | 480 | |
765d143b | 481 | ncpus = parse_cpu_set_and_warn(rvalue, &c, unit, filename, line, lvalue); |
f5c72b73 FB |
482 | if (ncpus < 0) |
483 | return ncpus; | |
487393e9 | 484 | |
f5c72b73 FB |
485 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) |
486 | log_warning("Failed to set CPU affinity: %m"); | |
487393e9 | 487 | |
487393e9 LP |
488 | return 0; |
489 | } | |
490 | ||
4d7213b2 LP |
491 | static int config_parse_show_status( |
492 | const char* unit, | |
493 | const char *filename, | |
494 | unsigned line, | |
495 | const char *section, | |
496 | unsigned section_line, | |
497 | const char *lvalue, | |
498 | int ltype, | |
499 | const char *rvalue, | |
500 | void *data, | |
501 | void *userdata) { | |
502 | ||
503 | int k; | |
504 | ShowStatus *b = data; | |
505 | ||
506 | assert(filename); | |
507 | assert(lvalue); | |
508 | assert(rvalue); | |
509 | assert(data); | |
510 | ||
511 | k = parse_show_status(rvalue, b); | |
512 | if (k < 0) { | |
12ca818f | 513 | log_syntax(unit, LOG_ERR, filename, line, k, "Failed to parse show status setting, ignoring: %s", rvalue); |
4d7213b2 LP |
514 | return 0; |
515 | } | |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
b9e74c39 LP |
520 | static int config_parse_crash_chvt( |
521 | const char* unit, | |
522 | const char *filename, | |
523 | unsigned line, | |
524 | const char *section, | |
525 | unsigned section_line, | |
526 | const char *lvalue, | |
527 | int ltype, | |
528 | const char *rvalue, | |
529 | void *data, | |
530 | void *userdata) { | |
531 | ||
532 | int r; | |
533 | ||
534 | assert(filename); | |
535 | assert(lvalue); | |
536 | assert(rvalue); | |
b9e74c39 LP |
537 | |
538 | r = parse_crash_chvt(rvalue); | |
539 | if (r < 0) { | |
540 | log_syntax(unit, LOG_ERR, filename, line, r, "Failed to parse CrashChangeVT= setting, ignoring: %s", rvalue); | |
541 | return 0; | |
542 | } | |
543 | ||
544 | return 0; | |
545 | } | |
546 | ||
e8e581bf ZJS |
547 | static int config_parse_join_controllers(const char *unit, |
548 | const char *filename, | |
549 | unsigned line, | |
550 | const char *section, | |
71a61510 | 551 | unsigned section_line, |
e8e581bf ZJS |
552 | const char *lvalue, |
553 | int ltype, | |
554 | const char *rvalue, | |
555 | void *data, | |
556 | void *userdata) { | |
0c85a4f3 | 557 | |
3875c85b | 558 | const char *whole_rvalue = rvalue; |
0c85a4f3 | 559 | unsigned n = 0; |
0c85a4f3 LP |
560 | |
561 | assert(filename); | |
562 | assert(lvalue); | |
563 | assert(rvalue); | |
564 | ||
fe382237 | 565 | arg_join_controllers = strv_free_free(arg_join_controllers); |
0c85a4f3 | 566 | |
d4ebeb4f FB |
567 | for (;;) { |
568 | _cleanup_free_ char *word = NULL; | |
569 | char **l; | |
570 | int r; | |
0c85a4f3 | 571 | |
d4ebeb4f | 572 | r = extract_first_word(&rvalue, &word, WHITESPACE, EXTRACT_QUOTES); |
3875c85b FB |
573 | if (r < 0) { |
574 | log_syntax(unit, LOG_ERR, filename, line, r, "Invalid value for %s: %s", lvalue, whole_rvalue); | |
d4ebeb4f | 575 | return r; |
3875c85b | 576 | } |
d4ebeb4f FB |
577 | if (r == 0) |
578 | break; | |
0c85a4f3 | 579 | |
d4ebeb4f | 580 | l = strv_split(word, ","); |
1592ec21 | 581 | if (!l) |
aa8aeac0 | 582 | return log_oom(); |
0c85a4f3 LP |
583 | strv_uniq(l); |
584 | ||
585 | if (strv_length(l) <= 1) { | |
586 | strv_free(l); | |
587 | continue; | |
588 | } | |
589 | ||
590 | if (!arg_join_controllers) { | |
591 | arg_join_controllers = new(char**, 2); | |
592 | if (!arg_join_controllers) { | |
593 | strv_free(l); | |
14212119 | 594 | return log_oom(); |
0c85a4f3 LP |
595 | } |
596 | ||
597 | arg_join_controllers[0] = l; | |
598 | arg_join_controllers[1] = NULL; | |
599 | ||
600 | n = 1; | |
601 | } else { | |
602 | char ***a; | |
603 | char ***t; | |
604 | ||
605 | t = new0(char**, n+2); | |
606 | if (!t) { | |
607 | strv_free(l); | |
14212119 | 608 | return log_oom(); |
0c85a4f3 LP |
609 | } |
610 | ||
611 | n = 0; | |
612 | ||
613 | for (a = arg_join_controllers; *a; a++) { | |
614 | ||
615 | if (strv_overlap(*a, l)) { | |
e287086b | 616 | if (strv_extend_strv(&l, *a, false) < 0) { |
0c85a4f3 LP |
617 | strv_free(l); |
618 | strv_free_free(t); | |
14212119 | 619 | return log_oom(); |
0c85a4f3 LP |
620 | } |
621 | ||
0c85a4f3 LP |
622 | } else { |
623 | char **c; | |
624 | ||
625 | c = strv_copy(*a); | |
626 | if (!c) { | |
627 | strv_free(l); | |
628 | strv_free_free(t); | |
14212119 | 629 | return log_oom(); |
0c85a4f3 LP |
630 | } |
631 | ||
632 | t[n++] = c; | |
633 | } | |
634 | } | |
635 | ||
636 | t[n++] = strv_uniq(l); | |
637 | ||
638 | strv_free_free(arg_join_controllers); | |
639 | arg_join_controllers = t; | |
640 | } | |
641 | } | |
d4ebeb4f | 642 | if (!isempty(rvalue)) |
12ca818f | 643 | log_syntax(unit, LOG_ERR, filename, line, 0, "Trailing garbage, ignoring."); |
0c85a4f3 LP |
644 | |
645 | return 0; | |
646 | } | |
647 | ||
487393e9 LP |
648 | static int parse_config_file(void) { |
649 | ||
f975e971 | 650 | const ConfigTableItem items[] = { |
d3b1c508 LP |
651 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, |
652 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
653 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
654 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
655 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
b9e74c39 LP |
656 | { "Manager", "CrashChVT", /* legacy */ config_parse_crash_chvt, 0, NULL }, |
657 | { "Manager", "CrashChangeVT", config_parse_crash_chvt, 0, NULL }, | |
d3b1c508 | 658 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, |
b9e74c39 | 659 | { "Manager", "CrashReboot", config_parse_bool, 0, &arg_crash_reboot }, |
d3b1c508 | 660 | { "Manager", "ShowStatus", config_parse_show_status, 0, &arg_show_status }, |
d3b1c508 LP |
661 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, |
662 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, | |
663 | { "Manager", "RuntimeWatchdogSec", config_parse_sec, 0, &arg_runtime_watchdog }, | |
664 | { "Manager", "ShutdownWatchdogSec", config_parse_sec, 0, &arg_shutdown_watchdog }, | |
a103496c | 665 | { "Manager", "CapabilityBoundingSet", config_parse_capability_set, 0, &arg_capability_bounding_set }, |
89fffa27 | 666 | #ifdef HAVE_SECCOMP |
d3b1c508 | 667 | { "Manager", "SystemCallArchitectures", config_parse_syscall_archs, 0, &arg_syscall_archs }, |
89fffa27 | 668 | #endif |
d3b1c508 | 669 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
bd8f585b | 670 | { "Manager", "DefaultTimerAccuracySec", config_parse_sec, 0, &arg_default_timer_accuracy_usec }, |
d3b1c508 LP |
671 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, |
672 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
673 | { "Manager", "DefaultTimeoutStartSec", config_parse_sec, 0, &arg_default_timeout_start_usec }, | |
674 | { "Manager", "DefaultTimeoutStopSec", config_parse_sec, 0, &arg_default_timeout_stop_usec }, | |
675 | { "Manager", "DefaultRestartSec", config_parse_sec, 0, &arg_default_restart_usec }, | |
f0367da7 LP |
676 | { "Manager", "DefaultStartLimitInterval", config_parse_sec, 0, &arg_default_start_limit_interval }, /* obsolete alias */ |
677 | { "Manager", "DefaultStartLimitIntervalSec",config_parse_sec, 0, &arg_default_start_limit_interval }, | |
d3b1c508 LP |
678 | { "Manager", "DefaultStartLimitBurst", config_parse_unsigned, 0, &arg_default_start_limit_burst }, |
679 | { "Manager", "DefaultEnvironment", config_parse_environ, 0, &arg_default_environment }, | |
d0a7c5f6 LP |
680 | { "Manager", "DefaultLimitCPU", config_parse_limit, RLIMIT_CPU, arg_default_rlimit }, |
681 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, RLIMIT_FSIZE, arg_default_rlimit }, | |
682 | { "Manager", "DefaultLimitDATA", config_parse_limit, RLIMIT_DATA, arg_default_rlimit }, | |
683 | { "Manager", "DefaultLimitSTACK", config_parse_limit, RLIMIT_STACK, arg_default_rlimit }, | |
684 | { "Manager", "DefaultLimitCORE", config_parse_limit, RLIMIT_CORE, arg_default_rlimit }, | |
685 | { "Manager", "DefaultLimitRSS", config_parse_limit, RLIMIT_RSS, arg_default_rlimit }, | |
686 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, RLIMIT_NOFILE, arg_default_rlimit }, | |
687 | { "Manager", "DefaultLimitAS", config_parse_limit, RLIMIT_AS, arg_default_rlimit }, | |
688 | { "Manager", "DefaultLimitNPROC", config_parse_limit, RLIMIT_NPROC, arg_default_rlimit }, | |
689 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, RLIMIT_MEMLOCK, arg_default_rlimit }, | |
690 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, RLIMIT_LOCKS, arg_default_rlimit }, | |
691 | { "Manager", "DefaultLimitSIGPENDING", config_parse_limit, RLIMIT_SIGPENDING, arg_default_rlimit }, | |
692 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, RLIMIT_MSGQUEUE, arg_default_rlimit }, | |
693 | { "Manager", "DefaultLimitNICE", config_parse_limit, RLIMIT_NICE, arg_default_rlimit }, | |
694 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, RLIMIT_RTPRIO, arg_default_rlimit }, | |
695 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, RLIMIT_RTTIME, arg_default_rlimit }, | |
085afe36 | 696 | { "Manager", "DefaultCPUAccounting", config_parse_bool, 0, &arg_default_cpu_accounting }, |
13c31542 | 697 | { "Manager", "DefaultIOAccounting", config_parse_bool, 0, &arg_default_io_accounting }, |
085afe36 LP |
698 | { "Manager", "DefaultBlockIOAccounting", config_parse_bool, 0, &arg_default_blockio_accounting }, |
699 | { "Manager", "DefaultMemoryAccounting", config_parse_bool, 0, &arg_default_memory_accounting }, | |
03a7b521 | 700 | { "Manager", "DefaultTasksAccounting", config_parse_bool, 0, &arg_default_tasks_accounting }, |
0af20ea2 | 701 | { "Manager", "DefaultTasksMax", config_parse_tasks_max, 0, &arg_default_tasks_max }, |
d3b1c508 | 702 | {} |
487393e9 LP |
703 | }; |
704 | ||
1b907b5c | 705 | const char *fn, *conf_dirs_nulstr; |
487393e9 | 706 | |
463d0d15 | 707 | fn = arg_system ? |
75eb6154 LP |
708 | PKGSYSCONFDIR "/system.conf" : |
709 | PKGSYSCONFDIR "/user.conf"; | |
710 | ||
463d0d15 | 711 | conf_dirs_nulstr = arg_system ? |
75eb6154 LP |
712 | CONF_PATHS_NULSTR("systemd/system.conf.d") : |
713 | CONF_PATHS_NULSTR("systemd/user.conf.d"); | |
714 | ||
36c16a7c LP |
715 | config_parse_many(fn, conf_dirs_nulstr, "Manager\0", config_item_table_lookup, items, false, NULL); |
716 | ||
717 | /* Traditionally "0" was used to turn off the default unit timeouts. Fix this up so that we used USEC_INFINITY | |
718 | * like everywhere else. */ | |
719 | if (arg_default_timeout_start_usec <= 0) | |
720 | arg_default_timeout_start_usec = USEC_INFINITY; | |
721 | if (arg_default_timeout_stop_usec <= 0) | |
722 | arg_default_timeout_stop_usec = USEC_INFINITY; | |
487393e9 | 723 | |
487393e9 LP |
724 | return 0; |
725 | } | |
726 | ||
06af2a04 TB |
727 | static void manager_set_defaults(Manager *m) { |
728 | ||
729 | assert(m); | |
730 | ||
731 | m->default_timer_accuracy_usec = arg_default_timer_accuracy_usec; | |
732 | m->default_std_output = arg_default_std_output; | |
733 | m->default_std_error = arg_default_std_error; | |
734 | m->default_timeout_start_usec = arg_default_timeout_start_usec; | |
735 | m->default_timeout_stop_usec = arg_default_timeout_stop_usec; | |
736 | m->default_restart_usec = arg_default_restart_usec; | |
737 | m->default_start_limit_interval = arg_default_start_limit_interval; | |
738 | m->default_start_limit_burst = arg_default_start_limit_burst; | |
739 | m->default_cpu_accounting = arg_default_cpu_accounting; | |
13c31542 | 740 | m->default_io_accounting = arg_default_io_accounting; |
06af2a04 TB |
741 | m->default_blockio_accounting = arg_default_blockio_accounting; |
742 | m->default_memory_accounting = arg_default_memory_accounting; | |
03a7b521 | 743 | m->default_tasks_accounting = arg_default_tasks_accounting; |
0af20ea2 | 744 | m->default_tasks_max = arg_default_tasks_max; |
06af2a04 TB |
745 | |
746 | manager_set_default_rlimits(m, arg_default_rlimit); | |
747 | manager_environment_add(m, NULL, arg_default_environment); | |
748 | } | |
749 | ||
f170852a LP |
750 | static int parse_argv(int argc, char *argv[]) { |
751 | ||
752 | enum { | |
753 | ARG_LOG_LEVEL = 0x100, | |
754 | ARG_LOG_TARGET, | |
bbe63281 LP |
755 | ARG_LOG_COLOR, |
756 | ARG_LOG_LOCATION, | |
2f198e2f | 757 | ARG_UNIT, |
edb9aaa8 | 758 | ARG_SYSTEM, |
af2d49f7 | 759 | ARG_USER, |
e537352b | 760 | ARG_TEST, |
b87c2aa6 | 761 | ARG_NO_PAGER, |
9ba0bc4e | 762 | ARG_VERSION, |
80876c20 | 763 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c | 764 | ARG_DUMP_CORE, |
b9e74c39 | 765 | ARG_CRASH_CHVT, |
9e58ff9c | 766 | ARG_CRASH_SHELL, |
b9e74c39 | 767 | ARG_CRASH_REBOOT, |
a16e1123 | 768 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 769 | ARG_SHOW_STATUS, |
4288f619 | 770 | ARG_DESERIALIZE, |
2660882b | 771 | ARG_SWITCHED_ROOT, |
0a494f1f | 772 | ARG_DEFAULT_STD_OUTPUT, |
ee48dbd5 NC |
773 | ARG_DEFAULT_STD_ERROR, |
774 | ARG_MACHINE_ID | |
f170852a LP |
775 | }; |
776 | ||
777 | static const struct option options[] = { | |
a16e1123 LP |
778 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
779 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
780 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
781 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 782 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 783 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 784 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 | 785 | { "test", no_argument, NULL, ARG_TEST }, |
b87c2aa6 | 786 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, |
a16e1123 | 787 | { "help", no_argument, NULL, 'h' }, |
9ba0bc4e | 788 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 789 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 | 790 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
b9e74c39 | 791 | { "crash-chvt", required_argument, NULL, ARG_CRASH_CHVT }, |
a5d87bf0 | 792 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, |
b9e74c39 | 793 | { "crash-reboot", optional_argument, NULL, ARG_CRASH_REBOOT }, |
a5d87bf0 | 794 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, |
6e98720f | 795 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 796 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 797 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
0a494f1f LP |
798 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
799 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
ee48dbd5 | 800 | { "machine-id", required_argument, NULL, ARG_MACHINE_ID }, |
fb472900 | 801 | {} |
f170852a LP |
802 | }; |
803 | ||
804 | int c, r; | |
805 | ||
806 | assert(argc >= 1); | |
807 | assert(argv); | |
808 | ||
b770165a LP |
809 | if (getpid() == 1) |
810 | opterr = 0; | |
811 | ||
099663ff | 812 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
813 | |
814 | switch (c) { | |
815 | ||
816 | case ARG_LOG_LEVEL: | |
fb472900 ZJS |
817 | r = log_set_max_level_from_string(optarg); |
818 | if (r < 0) { | |
f170852a LP |
819 | log_error("Failed to parse log level %s.", optarg); |
820 | return r; | |
821 | } | |
822 | ||
823 | break; | |
824 | ||
825 | case ARG_LOG_TARGET: | |
fb472900 ZJS |
826 | r = log_set_target_from_string(optarg); |
827 | if (r < 0) { | |
f170852a LP |
828 | log_error("Failed to parse log target %s.", optarg); |
829 | return r; | |
830 | } | |
831 | ||
832 | break; | |
833 | ||
bbe63281 LP |
834 | case ARG_LOG_COLOR: |
835 | ||
d0b170c8 | 836 | if (optarg) { |
fb472900 ZJS |
837 | r = log_show_color_from_string(optarg); |
838 | if (r < 0) { | |
d0b170c8 LP |
839 | log_error("Failed to parse log color setting %s.", optarg); |
840 | return r; | |
841 | } | |
842 | } else | |
843 | log_show_color(true); | |
bbe63281 LP |
844 | |
845 | break; | |
846 | ||
847 | case ARG_LOG_LOCATION: | |
d0b170c8 | 848 | if (optarg) { |
fb472900 ZJS |
849 | r = log_show_location_from_string(optarg); |
850 | if (r < 0) { | |
d0b170c8 LP |
851 | log_error("Failed to parse log location setting %s.", optarg); |
852 | return r; | |
853 | } | |
854 | } else | |
855 | log_show_location(true); | |
bbe63281 LP |
856 | |
857 | break; | |
858 | ||
0a494f1f | 859 | case ARG_DEFAULT_STD_OUTPUT: |
fb472900 ZJS |
860 | r = exec_output_from_string(optarg); |
861 | if (r < 0) { | |
0a494f1f LP |
862 | log_error("Failed to parse default standard output setting %s.", optarg); |
863 | return r; | |
864 | } else | |
865 | arg_default_std_output = r; | |
866 | break; | |
867 | ||
868 | case ARG_DEFAULT_STD_ERROR: | |
fb472900 ZJS |
869 | r = exec_output_from_string(optarg); |
870 | if (r < 0) { | |
0a494f1f LP |
871 | log_error("Failed to parse default standard error output setting %s.", optarg); |
872 | return r; | |
873 | } else | |
874 | arg_default_std_error = r; | |
875 | break; | |
876 | ||
2f198e2f | 877 | case ARG_UNIT: |
f170852a | 878 | |
e6e242ad | 879 | r = free_and_strdup(&arg_default_unit, optarg); |
23bbb0de MS |
880 | if (r < 0) |
881 | return log_error_errno(r, "Failed to set default unit %s: %m", optarg); | |
f170852a LP |
882 | |
883 | break; | |
884 | ||
edb9aaa8 | 885 | case ARG_SYSTEM: |
463d0d15 | 886 | arg_system = true; |
edb9aaa8 | 887 | break; |
a5dab5ce | 888 | |
af2d49f7 | 889 | case ARG_USER: |
463d0d15 | 890 | arg_system = false; |
a5dab5ce | 891 | break; |
a5dab5ce | 892 | |
e965d56d | 893 | case ARG_TEST: |
fa0f4d8a | 894 | arg_action = ACTION_TEST; |
b87c2aa6 ZJS |
895 | break; |
896 | ||
897 | case ARG_NO_PAGER: | |
898 | arg_no_pager = true; | |
e965d56d LP |
899 | break; |
900 | ||
9ba0bc4e ZJS |
901 | case ARG_VERSION: |
902 | arg_action = ACTION_VERSION; | |
903 | break; | |
904 | ||
e537352b | 905 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 906 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
907 | break; |
908 | ||
9e58ff9c | 909 | case ARG_DUMP_CORE: |
b9e74c39 LP |
910 | if (!optarg) |
911 | arg_dump_core = true; | |
912 | else { | |
913 | r = parse_boolean(optarg); | |
914 | if (r < 0) | |
915 | return log_error_errno(r, "Failed to parse dump core boolean: %s", optarg); | |
916 | arg_dump_core = r; | |
a5d87bf0 | 917 | } |
b9e74c39 LP |
918 | break; |
919 | ||
920 | case ARG_CRASH_CHVT: | |
921 | r = parse_crash_chvt(optarg); | |
922 | if (r < 0) | |
923 | return log_error_errno(r, "Failed to parse crash virtual terminal index: %s", optarg); | |
9e58ff9c LP |
924 | break; |
925 | ||
926 | case ARG_CRASH_SHELL: | |
b9e74c39 LP |
927 | if (!optarg) |
928 | arg_crash_shell = true; | |
929 | else { | |
930 | r = parse_boolean(optarg); | |
931 | if (r < 0) | |
932 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
933 | arg_crash_shell = r; | |
934 | } | |
935 | break; | |
936 | ||
937 | case ARG_CRASH_REBOOT: | |
938 | if (!optarg) | |
939 | arg_crash_reboot = true; | |
940 | else { | |
941 | r = parse_boolean(optarg); | |
942 | if (r < 0) | |
943 | return log_error_errno(r, "Failed to parse crash shell boolean: %s", optarg); | |
944 | arg_crash_reboot = r; | |
a5d87bf0 | 945 | } |
9e58ff9c LP |
946 | break; |
947 | ||
80876c20 | 948 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
949 | r = optarg ? parse_boolean(optarg) : 1; |
950 | if (r < 0) { | |
951 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
952 | return r; | |
953 | } | |
954 | arg_confirm_spawn = r; | |
80876c20 LP |
955 | break; |
956 | ||
9e58ff9c | 957 | case ARG_SHOW_STATUS: |
d450b6f2 ZJS |
958 | if (optarg) { |
959 | r = parse_show_status(optarg, &arg_show_status); | |
960 | if (r < 0) { | |
961 | log_error("Failed to parse show status boolean %s.", optarg); | |
962 | return r; | |
963 | } | |
964 | } else | |
965 | arg_show_status = SHOW_STATUS_YES; | |
6e98720f | 966 | break; |
a5d87bf0 | 967 | |
a16e1123 LP |
968 | case ARG_DESERIALIZE: { |
969 | int fd; | |
970 | FILE *f; | |
971 | ||
01e10de3 LP |
972 | r = safe_atoi(optarg, &fd); |
973 | if (r < 0 || fd < 0) { | |
a16e1123 | 974 | log_error("Failed to parse deserialize option %s.", optarg); |
b9e74c39 | 975 | return -EINVAL; |
a16e1123 LP |
976 | } |
977 | ||
b9e74c39 | 978 | (void) fd_cloexec(fd, true); |
01e10de3 LP |
979 | |
980 | f = fdopen(fd, "r"); | |
4a62c710 MS |
981 | if (!f) |
982 | return log_error_errno(errno, "Failed to open serialization fd: %m"); | |
a16e1123 | 983 | |
74ca738f | 984 | safe_fclose(arg_serialization); |
d3b1c508 | 985 | arg_serialization = f; |
a16e1123 LP |
986 | |
987 | break; | |
988 | } | |
989 | ||
2660882b | 990 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 991 | arg_switched_root = true; |
d03bc1b8 HH |
992 | break; |
993 | ||
ee48dbd5 NC |
994 | case ARG_MACHINE_ID: |
995 | r = set_machine_id(optarg); | |
996 | if (r < 0) { | |
997 | log_error("MachineID '%s' is not valid.", optarg); | |
998 | return r; | |
999 | } | |
1000 | break; | |
1001 | ||
f170852a | 1002 | case 'h': |
fa0f4d8a | 1003 | arg_action = ACTION_HELP; |
f170852a LP |
1004 | break; |
1005 | ||
1d2e23ab LP |
1006 | case 'D': |
1007 | log_set_max_level(LOG_DEBUG); | |
1008 | break; | |
1009 | ||
099663ff LP |
1010 | case 'b': |
1011 | case 's': | |
1012 | case 'z': | |
1013 | /* Just to eat away the sysvinit kernel | |
1014 | * cmdline args without getopt() error | |
1015 | * messages that we'll parse in | |
1016 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 1017 | |
099663ff | 1018 | case '?': |
601185b4 | 1019 | if (getpid() != 1) |
099663ff | 1020 | return -EINVAL; |
601185b4 ZJS |
1021 | else |
1022 | return 0; | |
099663ff | 1023 | |
601185b4 ZJS |
1024 | default: |
1025 | assert_not_reached("Unhandled option code."); | |
f170852a LP |
1026 | } |
1027 | ||
d821e6d6 LP |
1028 | if (optind < argc && getpid() != 1) { |
1029 | /* Hmm, when we aren't run as init system | |
1030 | * let's complain about excess arguments */ | |
1031 | ||
1032 | log_error("Excess arguments."); | |
1033 | return -EINVAL; | |
1034 | } | |
1035 | ||
f170852a LP |
1036 | return 0; |
1037 | } | |
1038 | ||
1039 | static int help(void) { | |
1040 | ||
2e33c433 | 1041 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1042 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1043 | " -h --help Show this help\n" |
e537352b | 1044 | " --test Determine startup sequence, dump it and exit\n" |
b87c2aa6 | 1045 | " --no-pager Do not pipe output into a pager\n" |
80876c20 | 1046 | " --dump-configuration-items Dump understood unit configuration items\n" |
9e58ff9c | 1047 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1048 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1049 | " --user Run a user instance\n" |
b9e74c39 LP |
1050 | " --dump-core[=BOOL] Dump core on crash\n" |
1051 | " --crash-vt=NR Change to specified VT on crash\n" | |
1052 | " --crash-reboot[=BOOL] Reboot on crash\n" | |
1053 | " --crash-shell[=BOOL] Run shell on crash\n" | |
1054 | " --confirm-spawn[=BOOL] Ask for confirmation when spawning processes\n" | |
1055 | " --show-status[=BOOL] Show status updates on the console during bootup\n" | |
c1dc6153 | 1056 | " --log-target=TARGET Set log target (console, journal, kmsg, journal-or-kmsg, null)\n" |
9e58ff9c | 1057 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
b9e74c39 LP |
1058 | " --log-color[=BOOL] Highlight important log messages\n" |
1059 | " --log-location[=BOOL] Include code location in log messages\n" | |
0a494f1f LP |
1060 | " --default-standard-output= Set default standard output for services\n" |
1061 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1062 | program_invocation_short_name); |
f170852a LP |
1063 | |
1064 | return 0; | |
1065 | } | |
1066 | ||
b3680f49 | 1067 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool switching_root) { |
48b90859 LP |
1068 | _cleanup_fdset_free_ FDSet *fds = NULL; |
1069 | _cleanup_fclose_ FILE *f = NULL; | |
a16e1123 LP |
1070 | int r; |
1071 | ||
1072 | assert(m); | |
1073 | assert(_f); | |
1074 | assert(_fds); | |
1075 | ||
6b78f9b4 | 1076 | r = manager_open_serialization(m, &f); |
48b90859 LP |
1077 | if (r < 0) |
1078 | return log_error_errno(r, "Failed to create serialization file: %m"); | |
a16e1123 | 1079 | |
71445ae7 | 1080 | /* Make sure nothing is really destructed when we shut down */ |
313cefa1 | 1081 | m->n_reloading++; |
718db961 | 1082 | bus_manager_send_reloading(m, true); |
71445ae7 | 1083 | |
6b78f9b4 | 1084 | fds = fdset_new(); |
48b90859 LP |
1085 | if (!fds) |
1086 | return log_oom(); | |
a16e1123 | 1087 | |
b3680f49 | 1088 | r = manager_serialize(m, f, fds, switching_root); |
48b90859 LP |
1089 | if (r < 0) |
1090 | return log_error_errno(r, "Failed to serialize state: %m"); | |
a16e1123 | 1091 | |
48b90859 LP |
1092 | if (fseeko(f, 0, SEEK_SET) == (off_t) -1) |
1093 | return log_error_errno(errno, "Failed to rewind serialization fd: %m"); | |
a16e1123 | 1094 | |
6b78f9b4 | 1095 | r = fd_cloexec(fileno(f), false); |
48b90859 LP |
1096 | if (r < 0) |
1097 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization: %m"); | |
a16e1123 | 1098 | |
6b78f9b4 | 1099 | r = fdset_cloexec(fds, false); |
48b90859 LP |
1100 | if (r < 0) |
1101 | return log_error_errno(r, "Failed to disable O_CLOEXEC for serialization fds: %m"); | |
a16e1123 LP |
1102 | |
1103 | *_f = f; | |
1104 | *_fds = fds; | |
1105 | ||
48b90859 LP |
1106 | f = NULL; |
1107 | fds = NULL; | |
a16e1123 | 1108 | |
48b90859 | 1109 | return 0; |
a16e1123 LP |
1110 | } |
1111 | ||
4096d6f5 LP |
1112 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1113 | struct rlimit nl; | |
1114 | int r; | |
1115 | ||
1116 | assert(saved_rlimit); | |
1117 | ||
1118 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1119 | * later when transitioning from the initrd to the main | |
1120 | * systemd or suchlike. */ | |
4a62c710 MS |
1121 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) |
1122 | return log_error_errno(errno, "Reading RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1123 | |
1124 | /* Make sure forked processes get the default kernel setting */ | |
1125 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1126 | struct rlimit *rl; | |
1127 | ||
1128 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1129 | if (!rl) | |
1130 | return log_oom(); | |
1131 | ||
1132 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1133 | } | |
1134 | ||
1135 | /* Bump up the resource limit for ourselves substantially */ | |
1136 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1137 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
23bbb0de MS |
1138 | if (r < 0) |
1139 | return log_error_errno(r, "Setting RLIMIT_NOFILE failed: %m"); | |
4096d6f5 LP |
1140 | |
1141 | return 0; | |
1142 | } | |
1143 | ||
80758717 | 1144 | static void test_usr(void) { |
80758717 | 1145 | |
ed1c99fc | 1146 | /* Check that /usr is not a separate fs */ |
80758717 | 1147 | |
871c44a7 LP |
1148 | if (dir_is_empty("/usr") <= 0) |
1149 | return; | |
1150 | ||
8b173b5e | 1151 | log_warning("/usr appears to be on its own filesystem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1152 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1153 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1154 | } | |
1155 | ||
a07fdfa3 LP |
1156 | static int initialize_join_controllers(void) { |
1157 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1158 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
f131770b | 1159 | * "cpuset" doesn't really work for groups with no initialized |
a07fdfa3 LP |
1160 | * attributes. */ |
1161 | ||
1162 | arg_join_controllers = new(char**, 3); | |
1163 | if (!arg_join_controllers) | |
1164 | return -ENOMEM; | |
1165 | ||
1166 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
fe382237 LP |
1167 | if (!arg_join_controllers[0]) |
1168 | goto oom; | |
a6b26d90 | 1169 | |
fe382237 LP |
1170 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); |
1171 | if (!arg_join_controllers[1]) | |
1172 | goto oom; | |
a07fdfa3 | 1173 | |
fe382237 | 1174 | arg_join_controllers[2] = NULL; |
a07fdfa3 | 1175 | return 0; |
fe382237 LP |
1176 | |
1177 | oom: | |
1178 | arg_join_controllers = strv_free_free(arg_join_controllers); | |
1179 | return -ENOMEM; | |
a07fdfa3 LP |
1180 | } |
1181 | ||
d3b1c508 LP |
1182 | static int enforce_syscall_archs(Set *archs) { |
1183 | #ifdef HAVE_SECCOMP | |
1184 | scmp_filter_ctx *seccomp; | |
1185 | Iterator i; | |
1186 | void *id; | |
1187 | int r; | |
1188 | ||
1189 | seccomp = seccomp_init(SCMP_ACT_ALLOW); | |
1190 | if (!seccomp) | |
1191 | return log_oom(); | |
1192 | ||
1193 | SET_FOREACH(id, arg_syscall_archs, i) { | |
1194 | r = seccomp_arch_add(seccomp, PTR_TO_UINT32(id) - 1); | |
1195 | if (r == -EEXIST) | |
1196 | continue; | |
1197 | if (r < 0) { | |
da927ba9 | 1198 | log_error_errno(r, "Failed to add architecture to seccomp: %m"); |
d3b1c508 LP |
1199 | goto finish; |
1200 | } | |
1201 | } | |
1202 | ||
8a8bf3c0 LP |
1203 | r = seccomp_attr_set(seccomp, SCMP_FLTATR_CTL_NNP, 0); |
1204 | if (r < 0) { | |
da927ba9 | 1205 | log_error_errno(r, "Failed to unset NO_NEW_PRIVS: %m"); |
8a8bf3c0 LP |
1206 | goto finish; |
1207 | } | |
1208 | ||
d3b1c508 LP |
1209 | r = seccomp_load(seccomp); |
1210 | if (r < 0) | |
da927ba9 | 1211 | log_error_errno(r, "Failed to add install architecture seccomp: %m"); |
d3b1c508 LP |
1212 | |
1213 | finish: | |
1214 | seccomp_release(seccomp); | |
1215 | return r; | |
1216 | #else | |
1217 | return 0; | |
1218 | #endif | |
1219 | } | |
1220 | ||
b6e2f329 LP |
1221 | static int status_welcome(void) { |
1222 | _cleanup_free_ char *pretty_name = NULL, *ansi_color = NULL; | |
1223 | int r; | |
1224 | ||
1225 | r = parse_env_file("/etc/os-release", NEWLINE, | |
1226 | "PRETTY_NAME", &pretty_name, | |
1227 | "ANSI_COLOR", &ansi_color, | |
1228 | NULL); | |
ece174c5 | 1229 | if (r == -ENOENT) |
5ae4d543 LP |
1230 | r = parse_env_file("/usr/lib/os-release", NEWLINE, |
1231 | "PRETTY_NAME", &pretty_name, | |
1232 | "ANSI_COLOR", &ansi_color, | |
1233 | NULL); | |
b6e2f329 LP |
1234 | |
1235 | if (r < 0 && r != -ENOENT) | |
da927ba9 | 1236 | log_warning_errno(r, "Failed to read os-release file: %m"); |
b6e2f329 | 1237 | |
dc9b5816 ZJS |
1238 | if (log_get_show_color()) |
1239 | return status_printf(NULL, false, false, | |
1240 | "\nWelcome to \x1B[%sm%s\x1B[0m!\n", | |
1241 | isempty(ansi_color) ? "1" : ansi_color, | |
1242 | isempty(pretty_name) ? "Linux" : pretty_name); | |
1243 | else | |
1244 | return status_printf(NULL, false, false, | |
1245 | "\nWelcome to %s!\n", | |
1246 | isempty(pretty_name) ? "Linux" : pretty_name); | |
b6e2f329 LP |
1247 | } |
1248 | ||
fdd25311 LP |
1249 | static int write_container_id(void) { |
1250 | const char *c; | |
19854865 | 1251 | int r; |
fdd25311 LP |
1252 | |
1253 | c = getenv("container"); | |
1254 | if (isempty(c)) | |
1255 | return 0; | |
1256 | ||
8612da97 LP |
1257 | RUN_WITH_UMASK(0022) |
1258 | r = write_string_file("/run/systemd/container", c, WRITE_STRING_FILE_CREATE); | |
19854865 | 1259 | if (r < 0) |
f1f849b0 | 1260 | return log_warning_errno(r, "Failed to write /run/systemd/container, ignoring: %m"); |
19854865 LP |
1261 | |
1262 | return 1; | |
1263 | } | |
1264 | ||
1265 | static int bump_unix_max_dgram_qlen(void) { | |
1266 | _cleanup_free_ char *qlen = NULL; | |
1267 | unsigned long v; | |
1268 | int r; | |
1269 | ||
1270 | /* Let's bump the net.unix.max_dgram_qlen sysctl. The kernel | |
1271 | * default of 16 is simply too low. We set the value really | |
1272 | * really early during boot, so that it is actually applied to | |
1273 | * all our sockets, including the $NOTIFY_SOCKET one. */ | |
1274 | ||
1275 | r = read_one_line_file("/proc/sys/net/unix/max_dgram_qlen", &qlen); | |
1276 | if (r < 0) | |
1277 | return log_warning_errno(r, "Failed to read AF_UNIX datagram queue length, ignoring: %m"); | |
1278 | ||
1279 | r = safe_atolu(qlen, &v); | |
1280 | if (r < 0) | |
1281 | return log_warning_errno(r, "Failed to parse AF_UNIX datagram queue length, ignoring: %m"); | |
1282 | ||
1283 | if (v >= DEFAULT_UNIX_MAX_DGRAM_QLEN) | |
1284 | return 0; | |
1285 | ||
1286 | qlen = mfree(qlen); | |
1287 | if (asprintf(&qlen, "%lu\n", DEFAULT_UNIX_MAX_DGRAM_QLEN) < 0) | |
1288 | return log_oom(); | |
1289 | ||
1290 | r = write_string_file("/proc/sys/net/unix/max_dgram_qlen", qlen, 0); | |
1291 | if (r < 0) | |
1292 | return log_full_errno(IN_SET(r, -EROFS, -EPERM, -EACCES) ? LOG_DEBUG : LOG_WARNING, r, | |
1293 | "Failed to bump AF_UNIX datagram queue length, ignoring: %m"); | |
1294 | ||
1295 | return 1; | |
fdd25311 LP |
1296 | } |
1297 | ||
32391275 FB |
1298 | static int fixup_environment(void) { |
1299 | _cleanup_free_ char *term = NULL; | |
1300 | int r; | |
1301 | ||
84af7821 LP |
1302 | /* We expect the environment to be set correctly |
1303 | * if run inside a container. */ | |
1304 | if (detect_container() > 0) | |
1305 | return 0; | |
1306 | ||
32391275 FB |
1307 | /* When started as PID1, the kernel uses /dev/console |
1308 | * for our stdios and uses TERM=linux whatever the | |
1309 | * backend device used by the console. We try to make | |
1310 | * a better guess here since some consoles might not | |
1311 | * have support for color mode for example. | |
1312 | * | |
1313 | * However if TERM was configured through the kernel | |
1314 | * command line then leave it alone. */ | |
1315 | ||
1316 | r = get_proc_cmdline_key("TERM=", &term); | |
1317 | if (r < 0) | |
1318 | return r; | |
1319 | ||
1320 | if (r == 0) { | |
6af760f3 | 1321 | term = strdup(default_term_for_tty("/dev/console")); |
32391275 | 1322 | if (!term) |
84af7821 | 1323 | return -ENOMEM; |
32391275 FB |
1324 | } |
1325 | ||
1326 | if (setenv("TERM", term, 1) < 0) | |
1327 | return -errno; | |
1328 | ||
1329 | return 0; | |
1330 | } | |
1331 | ||
60918275 LP |
1332 | int main(int argc, char *argv[]) { |
1333 | Manager *m = NULL; | |
22f4096c | 1334 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1335 | usec_t before_startup, after_startup; |
1336 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1337 | FDSet *fds = NULL; |
1338 | bool reexecute = false; | |
b9080b03 | 1339 | const char *shutdown_verb = NULL; |
86caf095 LP |
1340 | dual_timestamp initrd_timestamp = DUAL_TIMESTAMP_NULL; |
1341 | dual_timestamp userspace_timestamp = DUAL_TIMESTAMP_NULL; | |
1342 | dual_timestamp kernel_timestamp = DUAL_TIMESTAMP_NULL; | |
1343 | dual_timestamp security_start_timestamp = DUAL_TIMESTAMP_NULL; | |
1344 | dual_timestamp security_finish_timestamp = DUAL_TIMESTAMP_NULL; | |
5d6b1584 | 1345 | static char systemd[] = "systemd"; |
2660882b | 1346 | bool skip_setup = false; |
d3b1c508 | 1347 | unsigned j; |
0b3325e7 | 1348 | bool loaded_policy = false; |
e96d6be7 | 1349 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1350 | bool queue_default_job = false; |
5f5c2f38 | 1351 | bool empty_etc = false; |
41669317 | 1352 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
86caf095 | 1353 | struct rlimit saved_rlimit_nofile = RLIMIT_MAKE_CONST(0); |
cb6531be | 1354 | const char *error_message = NULL; |
27b14a22 | 1355 | |
058dc6f3 | 1356 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1357 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1358 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1359 | * calling init as a user is identical to telinit. */ |
1360 | ||
2cb1a60d | 1361 | execv(SYSTEMCTL_BINARY_PATH, argv); |
56f64d95 | 1362 | log_error_errno(errno, "Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); |
2cb1a60d LP |
1363 | return 1; |
1364 | } | |
058dc6f3 | 1365 | #endif |
2cb1a60d | 1366 | |
c3a170f3 HH |
1367 | dual_timestamp_from_monotonic(&kernel_timestamp, 0); |
1368 | dual_timestamp_get(&userspace_timestamp); | |
1369 | ||
0b3325e7 LP |
1370 | /* Determine if this is a reexecution or normal bootup. We do |
1371 | * the full command line parsing much later, so let's just | |
1372 | * have a quick peek here. */ | |
db813c2a LP |
1373 | if (strv_find(argv+1, "--deserialize")) |
1374 | skip_setup = true; | |
0b3325e7 | 1375 | |
2660882b LP |
1376 | /* If we have switched root, do all the special setup |
1377 | * things */ | |
db813c2a LP |
1378 | if (strv_find(argv+1, "--switched-root")) |
1379 | skip_setup = false; | |
d03bc1b8 | 1380 | |
f3b6a3ed LP |
1381 | /* If we get started via the /sbin/init symlink then we are |
1382 | called 'init'. After a subsequent reexecution we are then | |
1383 | called 'systemd'. That is confusing, hence let's call us | |
1384 | systemd right-away. */ | |
f3b6a3ed LP |
1385 | program_invocation_short_name = systemd; |
1386 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1387 | |
9a0e6896 LP |
1388 | saved_argv = argv; |
1389 | saved_argc = argc; | |
f3b6a3ed | 1390 | |
c1dc6153 | 1391 | log_set_upgrade_syslog_to_journal(true); |
bbe63281 | 1392 | |
90dc8c2e MG |
1393 | /* Disable the umask logic */ |
1394 | if (getpid() == 1) | |
1395 | umask(0); | |
1396 | ||
75f86906 | 1397 | if (getpid() == 1 && detect_container() <= 0) { |
4f8d551f | 1398 | |
a866073d | 1399 | /* Running outside of a container as PID 1 */ |
463d0d15 | 1400 | arg_system = true; |
a866073d LP |
1401 | log_set_target(LOG_TARGET_KMSG); |
1402 | log_open(); | |
1403 | ||
21bf2ab0 | 1404 | if (in_initrd()) |
c3a170f3 | 1405 | initrd_timestamp = userspace_timestamp; |
c3ba6250 | 1406 | |
2660882b | 1407 | if (!skip_setup) { |
d723cd65 AK |
1408 | r = mount_setup_early(); |
1409 | if (r < 0) { | |
1410 | error_message = "Failed to early mount API filesystems"; | |
1411 | goto finish; | |
1412 | } | |
c2e0d600 | 1413 | dual_timestamp_get(&security_start_timestamp); |
cb6531be ZJS |
1414 | if (mac_selinux_setup(&loaded_policy) < 0) { |
1415 | error_message = "Failed to load SELinux policy"; | |
0b3325e7 | 1416 | goto finish; |
cb6531be ZJS |
1417 | } else if (mac_smack_setup(&loaded_policy) < 0) { |
1418 | error_message = "Failed to load SMACK policy"; | |
ffbd2c4d | 1419 | goto finish; |
96694e99 IP |
1420 | } else if (ima_setup() < 0) { |
1421 | error_message = "Failed to load IMA policy"; | |
1422 | goto finish; | |
cb6531be | 1423 | } |
c2e0d600 | 1424 | dual_timestamp_get(&security_finish_timestamp); |
81611586 | 1425 | } |
0b3325e7 | 1426 | |
c3dacc8b | 1427 | if (mac_selinux_init() < 0) { |
cb6531be | 1428 | error_message = "Failed to initialize SELinux policy"; |
0ff4cdd9 | 1429 | goto finish; |
cb6531be | 1430 | } |
7948c4df | 1431 | |
72edcff5 | 1432 | if (!skip_setup) { |
6369641d | 1433 | if (clock_is_localtime(NULL) > 0) { |
0b3325e7 | 1434 | int min; |
7948c4df | 1435 | |
c264aeab KS |
1436 | /* |
1437 | * The very first call of settimeofday() also does a time warp in the kernel. | |
1438 | * | |
1439 | * In the rtc-in-local time mode, we set the kernel's timezone, and rely on | |
1440 | * external tools to take care of maintaining the RTC and do all adjustments. | |
1441 | * This matches the behavior of Windows, which leaves the RTC alone if the | |
1442 | * registry tells that the RTC runs in UTC. | |
1443 | */ | |
24efb112 | 1444 | r = clock_set_timezone(&min); |
0b3325e7 | 1445 | if (r < 0) |
da927ba9 | 1446 | log_error_errno(r, "Failed to apply local time delta, ignoring: %m"); |
0b3325e7 LP |
1447 | else |
1448 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1449 | } else if (!in_initrd()) { |
1450 | /* | |
c264aeab | 1451 | * Do a dummy very first call to seal the kernel's time warp magic. |
19e65613 | 1452 | * |
61233823 | 1453 | * Do not call this from inside the initrd. The initrd might not |
19e65613 KS |
1454 | * carry /etc/adjtime with LOCAL, but the real system could be set up |
1455 | * that way. In such case, we need to delay the time-warp or the sealing | |
1456 | * until we reach the real system. | |
c264aeab KS |
1457 | * |
1458 | * Do no set the kernel's timezone. The concept of local time cannot | |
1459 | * be supported reliably, the time will jump or be incorrect at every daylight | |
1460 | * saving time change. All kernel local time concepts will be treated | |
1461 | * as UTC that way. | |
19e65613 | 1462 | */ |
021dd87b | 1463 | (void) clock_reset_timewarp(); |
72edcff5 | 1464 | } |
021dd87b LP |
1465 | |
1466 | r = clock_apply_epoch(); | |
1467 | if (r < 0) | |
1468 | log_error_errno(r, "Current system time is before build time, but cannot correct: %m"); | |
1469 | else if (r > 0) | |
1470 | log_info("System time before build time, advancing clock."); | |
72edcff5 | 1471 | } |
a866073d LP |
1472 | |
1473 | /* Set the default for later on, but don't actually | |
1474 | * open the logs like this for now. Note that if we | |
1475 | * are transitioning from the initrd there might still | |
1476 | * be journal fd open, and we shouldn't attempt | |
1477 | * opening that before we parsed /proc/cmdline which | |
1478 | * might redirect output elsewhere. */ | |
1479 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1480 | ||
1481 | } else if (getpid() == 1) { | |
a866073d | 1482 | /* Running inside a container, as PID 1 */ |
463d0d15 | 1483 | arg_system = true; |
a866073d | 1484 | log_set_target(LOG_TARGET_CONSOLE); |
99f09825 | 1485 | log_close_console(); /* force reopen of /dev/console */ |
a866073d LP |
1486 | log_open(); |
1487 | ||
1488 | /* For the later on, see above... */ | |
1489 | log_set_target(LOG_TARGET_JOURNAL); | |
1490 | ||
c3a170f3 HH |
1491 | /* clear the kernel timestamp, |
1492 | * because we are in a container */ | |
0f5f63c3 | 1493 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
c3a170f3 | 1494 | } else { |
a866073d | 1495 | /* Running as user instance */ |
463d0d15 | 1496 | arg_system = false; |
eeecf6e6 | 1497 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1498 | log_open(); |
c3a170f3 HH |
1499 | |
1500 | /* clear the kernel timestamp, | |
1501 | * because we are not PID 1 */ | |
6513d561 | 1502 | kernel_timestamp = DUAL_TIMESTAMP_NULL; |
bbe63281 | 1503 | } |
a5dab5ce | 1504 | |
15a90032 LP |
1505 | if (getpid() == 1) { |
1506 | /* Don't limit the core dump size, so that coredump handlers such as systemd-coredump (which honour the limit) | |
1507 | * will process core dumps for system services by default. */ | |
206fc4b2 ZJS |
1508 | if (setrlimit(RLIMIT_CORE, &RLIMIT_MAKE_CONST(RLIM_INFINITY)) < 0) |
1509 | log_warning_errno(errno, "Failed to set RLIMIT_CORE: %m"); | |
15a90032 LP |
1510 | |
1511 | /* But at the same time, turn off the core_pattern logic by default, so that no coredumps are stored | |
1512 | * until the systemd-coredump tool is enabled via sysctl. */ | |
1513 | if (!skip_setup) | |
1514 | (void) write_string_file("/proc/sys/kernel/core_pattern", "|/bin/false", 0); | |
1515 | } | |
1516 | ||
6edefe0b | 1517 | if (arg_system) { |
84af7821 LP |
1518 | if (fixup_environment() < 0) { |
1519 | error_message = "Failed to fix up PID1 environment"; | |
1520 | goto finish; | |
1521 | } | |
32391275 | 1522 | |
3a18b604 FB |
1523 | /* Try to figure out if we can use colors with the console. No |
1524 | * need to do that for user instances since they never log | |
1525 | * into the console. */ | |
1526 | log_show_color(colors_enabled()); | |
1527 | make_null_stdio(); | |
1528 | } | |
1529 | ||
0c85a4f3 | 1530 | /* Initialize default unit */ |
e6e242ad | 1531 | r = free_and_strdup(&arg_default_unit, SPECIAL_DEFAULT_TARGET); |
6afa301b | 1532 | if (r < 0) { |
da927ba9 | 1533 | log_emergency_errno(r, "Failed to set default unit %s: %m", SPECIAL_DEFAULT_TARGET); |
cb6531be | 1534 | error_message = "Failed to set default unit"; |
f170852a | 1535 | goto finish; |
14212119 | 1536 | } |
60918275 | 1537 | |
a07fdfa3 | 1538 | r = initialize_join_controllers(); |
cb6531be | 1539 | if (r < 0) { |
ff9b60f3 | 1540 | error_message = "Failed to initialize cgroup controllers"; |
0c85a4f3 | 1541 | goto finish; |
cb6531be | 1542 | } |
0c85a4f3 | 1543 | |
f170852a LP |
1544 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1545 | * /proc/$PID/fd is available. */ | |
c1dae1b3 | 1546 | if (getpid() == 1) { |
f84f9974 LP |
1547 | |
1548 | /* Load the kernel modules early, so that we kdbus.ko is loaded before kdbusfs shall be mounted */ | |
2e75e2a8 DM |
1549 | if (!skip_setup) |
1550 | kmod_setup(); | |
2e75e2a8 | 1551 | |
0c85a4f3 | 1552 | r = mount_setup(loaded_policy); |
cb6531be ZJS |
1553 | if (r < 0) { |
1554 | error_message = "Failed to mount API filesystems"; | |
8efe3c01 | 1555 | goto finish; |
cb6531be | 1556 | } |
0c85a4f3 | 1557 | } |
4ade7963 LP |
1558 | |
1559 | /* Reset all signal handlers. */ | |
ce30c8dc LP |
1560 | (void) reset_all_signal_handlers(); |
1561 | (void) ignore_signals(SIGNALS_IGNORE, -1); | |
078e4539 | 1562 | |
f5058264 | 1563 | arg_default_tasks_max = system_tasks_max_scale(DEFAULT_TASKS_MAX_PERCENTAGE, 100U); |
79baeeb9 | 1564 | |
cb6531be ZJS |
1565 | if (parse_config_file() < 0) { |
1566 | error_message = "Failed to parse config file"; | |
487393e9 | 1567 | goto finish; |
cb6531be | 1568 | } |
487393e9 | 1569 | |
463d0d15 | 1570 | if (arg_system) { |
b5884878 LP |
1571 | r = parse_proc_cmdline(parse_proc_cmdline_item); |
1572 | if (r < 0) | |
da927ba9 | 1573 | log_warning_errno(r, "Failed to parse kernel command line, ignoring: %m"); |
b5884878 | 1574 | } |
f170852a | 1575 | |
1de1c9c3 LP |
1576 | /* Note that this also parses bits from the kernel command |
1577 | * line, including "debug". */ | |
f170852a LP |
1578 | log_parse_environment(); |
1579 | ||
cb6531be ZJS |
1580 | if (parse_argv(argc, argv) < 0) { |
1581 | error_message = "Failed to parse commandline arguments"; | |
f170852a | 1582 | goto finish; |
cb6531be | 1583 | } |
f170852a | 1584 | |
6bae23a0 TB |
1585 | if (arg_action == ACTION_TEST && |
1586 | geteuid() == 0) { | |
b5c6cf87 LP |
1587 | log_error("Don't run test mode as root."); |
1588 | goto finish; | |
1589 | } | |
1590 | ||
463d0d15 | 1591 | if (!arg_system && |
6bae23a0 TB |
1592 | arg_action == ACTION_RUN && |
1593 | sd_booted() <= 0) { | |
1594 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1595 | goto finish; | |
1596 | } | |
1597 | ||
463d0d15 | 1598 | if (arg_system && |
fe783b03 LP |
1599 | arg_action == ACTION_RUN && |
1600 | running_in_chroot() > 0) { | |
1601 | log_error("Cannot be run in a chroot() environment."); | |
1602 | goto finish; | |
1603 | } | |
1604 | ||
0d8c31ff ZJS |
1605 | if (arg_action == ACTION_TEST) |
1606 | skip_setup = true; | |
1607 | ||
ea4b98e6 AK |
1608 | if (arg_action == ACTION_TEST || arg_action == ACTION_HELP) |
1609 | pager_open(arg_no_pager, false); | |
b87c2aa6 | 1610 | |
fa0f4d8a | 1611 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1612 | retval = help(); |
1613 | goto finish; | |
9ba0bc4e ZJS |
1614 | } else if (arg_action == ACTION_VERSION) { |
1615 | retval = version(); | |
1616 | goto finish; | |
fa0f4d8a | 1617 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
13811bf9 | 1618 | pager_open(arg_no_pager, false); |
e537352b | 1619 | unit_dump_config_items(stdout); |
22f4096c | 1620 | retval = EXIT_SUCCESS; |
e537352b | 1621 | goto finish; |
f170852a LP |
1622 | } |
1623 | ||
463d0d15 | 1624 | if (!arg_system && |
8be28fb1 KS |
1625 | !getenv("XDG_RUNTIME_DIR")) { |
1626 | log_error("Trying to run as user instance, but $XDG_RUNTIME_DIR is not set."); | |
1627 | goto finish; | |
1628 | } | |
1629 | ||
fa0f4d8a | 1630 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1631 | |
871e5809 LP |
1632 | /* Close logging fds, in order not to confuse fdset below */ |
1633 | log_close(); | |
1634 | ||
a16e1123 | 1635 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1636 | r = fdset_new_fill(&fds); |
1637 | if (r < 0) { | |
da927ba9 | 1638 | log_emergency_errno(r, "Failed to allocate fd set: %m"); |
cb6531be | 1639 | error_message = "Failed to allocate fd set"; |
01e10de3 LP |
1640 | goto finish; |
1641 | } else | |
1642 | fdset_cloexec(fds, true); | |
a16e1123 | 1643 | |
d3b1c508 LP |
1644 | if (arg_serialization) |
1645 | assert_se(fdset_remove(fds, fileno(arg_serialization)) >= 0); | |
a16e1123 | 1646 | |
463d0d15 | 1647 | if (arg_system) |
80876c20 LP |
1648 | /* Become a session leader if we aren't one yet. */ |
1649 | setsid(); | |
4ade7963 | 1650 | |
befb5b6a | 1651 | /* Move out of the way, so that we won't block unmounts */ |
d250afe7 | 1652 | assert_se(chdir("/") == 0); |
befb5b6a | 1653 | |
2146621b LP |
1654 | /* Reset the console, but only if this is really init and we |
1655 | * are freshly booted */ | |
463d0d15 | 1656 | if (arg_system && arg_action == ACTION_RUN) { |
56d96fc0 LP |
1657 | |
1658 | /* If we are init, we connect stdin/stdout/stderr to | |
1659 | * /dev/null and make sure we don't have a controlling | |
1660 | * tty. */ | |
1661 | release_terminal(); | |
1662 | ||
1663 | if (getpid() == 1 && !skip_setup) | |
1664 | console_setup(); | |
1665 | } | |
4ade7963 | 1666 | |
18149b9f | 1667 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1668 | log_open(); |
4ade7963 | 1669 | |
b6e2f329 LP |
1670 | if (arg_show_status == _SHOW_STATUS_UNSET) |
1671 | arg_show_status = SHOW_STATUS_YES; | |
1672 | ||
5373d602 LP |
1673 | /* Make sure we leave a core dump without panicing the |
1674 | * kernel. */ | |
ab422445 | 1675 | if (getpid() == 1) { |
4fc935ca | 1676 | install_crash_handler(); |
97c4f35c | 1677 | |
0c85a4f3 LP |
1678 | r = mount_cgroup_controllers(arg_join_controllers); |
1679 | if (r < 0) | |
1680 | goto finish; | |
1681 | } | |
1682 | ||
463d0d15 | 1683 | if (arg_system) { |
75f86906 | 1684 | int v; |
c20f5ac7 | 1685 | |
0d8c31ff ZJS |
1686 | log_info(PACKAGE_STRING " running in %ssystem mode. (" SYSTEMD_FEATURES ")", |
1687 | arg_action == ACTION_TEST ? "test " : "" ); | |
c20f5ac7 | 1688 | |
75f86906 LP |
1689 | v = detect_virtualization(); |
1690 | if (v > 0) | |
1691 | log_info("Detected virtualization %s.", virtualization_to_string(v)); | |
c20f5ac7 | 1692 | |
fdd25311 LP |
1693 | write_container_id(); |
1694 | ||
d3f86679 | 1695 | log_info("Detected architecture %s.", architecture_to_string(uname_architecture())); |
d9d93745 | 1696 | |
26a1efdf LP |
1697 | if (in_initrd()) |
1698 | log_info("Running in initial RAM disk."); | |
1699 | ||
3408ba01 LP |
1700 | /* Let's check whether /etc is already populated. We |
1701 | * don't actually really check for that, but use | |
1702 | * /etc/machine-id as flag file. This allows container | |
1703 | * managers and installers to provision a couple of | |
1704 | * files already. If the container manager wants to | |
1705 | * provision the machine ID itself it should pass | |
ee33e53a | 1706 | * $container_uuid to PID 1. */ |
3408ba01 | 1707 | |
baa1bdf7 | 1708 | empty_etc = access("/etc/machine-id", F_OK) < 0; |
5f5c2f38 LP |
1709 | if (empty_etc) |
1710 | log_info("Running with unpopulated /etc."); | |
d8160f21 | 1711 | } else { |
1f97091d LP |
1712 | _cleanup_free_ char *t; |
1713 | ||
1714 | t = uid_to_name(getuid()); | |
0d8c31ff ZJS |
1715 | log_debug(PACKAGE_STRING " running in %suser mode for user "UID_FMT"/%s. (" SYSTEMD_FEATURES ")", |
1716 | arg_action == ACTION_TEST ? " test" : "", getuid(), t); | |
d8160f21 | 1717 | } |
a5dab5ce | 1718 | |
463d0d15 | 1719 | if (arg_system && !skip_setup) { |
031886ed | 1720 | if (arg_show_status > 0) |
888c6216 LP |
1721 | status_welcome(); |
1722 | ||
888c6216 | 1723 | hostname_setup(); |
4b1afed0 | 1724 | machine_id_setup(NULL, arg_machine_id, NULL); |
888c6216 | 1725 | loopback_setup(); |
19854865 | 1726 | bump_unix_max_dgram_qlen(); |
490aed58 | 1727 | |
80758717 | 1728 | test_usr(); |
af5bc85d | 1729 | } |
302e8c4c | 1730 | |
463d0d15 | 1731 | if (arg_system && arg_runtime_watchdog > 0 && arg_runtime_watchdog != USEC_INFINITY) |
e96d6be7 LP |
1732 | watchdog_set_timeout(&arg_runtime_watchdog); |
1733 | ||
3a43da28 | 1734 | if (arg_timer_slack_nsec != NSEC_INFINITY) |
aa0f64ac | 1735 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) |
56f64d95 | 1736 | log_error_errno(errno, "Failed to adjust timer slack: %m"); |
aa0f64ac | 1737 | |
a103496c IP |
1738 | if (!cap_test_all(arg_capability_bounding_set)) { |
1739 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set); | |
ec8927ca | 1740 | if (r < 0) { |
da927ba9 | 1741 | log_emergency_errno(r, "Failed to drop capability bounding set of usermode helpers: %m"); |
cb6531be | 1742 | error_message = "Failed to drop capability bounding set of usermode helpers"; |
ec8927ca LP |
1743 | goto finish; |
1744 | } | |
a103496c | 1745 | r = capability_bounding_set_drop(arg_capability_bounding_set, true); |
939b8f14 | 1746 | if (r < 0) { |
da927ba9 | 1747 | log_emergency_errno(r, "Failed to drop capability bounding set: %m"); |
cb6531be | 1748 | error_message = "Failed to drop capability bounding set"; |
939b8f14 LP |
1749 | goto finish; |
1750 | } | |
ec8927ca LP |
1751 | } |
1752 | ||
d3b1c508 LP |
1753 | if (arg_syscall_archs) { |
1754 | r = enforce_syscall_archs(arg_syscall_archs); | |
cb6531be ZJS |
1755 | if (r < 0) { |
1756 | error_message = "Failed to set syscall architectures"; | |
d3b1c508 | 1757 | goto finish; |
cb6531be | 1758 | } |
d3b1c508 LP |
1759 | } |
1760 | ||
463d0d15 | 1761 | if (!arg_system) |
d4447f4d | 1762 | /* Become reaper of our children */ |
61b9b203 | 1763 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) |
56f64d95 | 1764 | log_warning_errno(errno, "Failed to make us a subreaper: %m"); |
d4447f4d | 1765 | |
463d0d15 | 1766 | if (arg_system) { |
4096d6f5 LP |
1767 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1768 | ||
5f5c2f38 | 1769 | if (empty_etc) { |
304b3079 | 1770 | r = unit_file_preset_all(UNIT_FILE_SYSTEM, false, NULL, UNIT_FILE_PRESET_ENABLE_ONLY, false, NULL, 0); |
5f5c2f38 | 1771 | if (r < 0) |
287a0de4 | 1772 | log_full_errno(r == -EEXIST ? LOG_NOTICE : LOG_WARNING, r, "Failed to populate /etc with preset unit settings, ignoring: %m"); |
5f5c2f38 LP |
1773 | else |
1774 | log_info("Populated /etc with preset unit settings."); | |
1775 | } | |
1776 | } | |
1777 | ||
463d0d15 | 1778 | r = manager_new(arg_system ? UNIT_FILE_SYSTEM : UNIT_FILE_USER, arg_action == ACTION_TEST, &m); |
e96d6be7 | 1779 | if (r < 0) { |
da927ba9 | 1780 | log_emergency_errno(r, "Failed to allocate manager object: %m"); |
cb6531be | 1781 | error_message = "Failed to allocate manager object"; |
60918275 LP |
1782 | goto finish; |
1783 | } | |
1784 | ||
9e58ff9c | 1785 | m->confirm_spawn = arg_confirm_spawn; |
e96d6be7 LP |
1786 | m->runtime_watchdog = arg_runtime_watchdog; |
1787 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
c3a170f3 HH |
1788 | m->userspace_timestamp = userspace_timestamp; |
1789 | m->kernel_timestamp = kernel_timestamp; | |
c3a170f3 | 1790 | m->initrd_timestamp = initrd_timestamp; |
c2e0d600 TA |
1791 | m->security_start_timestamp = security_start_timestamp; |
1792 | m->security_finish_timestamp = security_finish_timestamp; | |
9e58ff9c | 1793 | |
06af2a04 | 1794 | manager_set_defaults(m); |
27d340c7 | 1795 | manager_set_show_status(m, arg_show_status); |
e2680723 | 1796 | manager_set_first_boot(m, empty_etc); |
27d340c7 | 1797 | |
bf4df7c3 | 1798 | /* Remember whether we should queue the default job */ |
d3b1c508 | 1799 | queue_default_job = !arg_serialization || arg_switched_root; |
bf4df7c3 | 1800 | |
9d76d730 LP |
1801 | before_startup = now(CLOCK_MONOTONIC); |
1802 | ||
d3b1c508 | 1803 | r = manager_startup(m, arg_serialization, fds); |
e96d6be7 | 1804 | if (r < 0) |
da927ba9 | 1805 | log_error_errno(r, "Failed to fully start up daemon: %m"); |
a16e1123 | 1806 | |
bf4df7c3 LP |
1807 | /* This will close all file descriptors that were opened, but |
1808 | * not claimed by any unit. */ | |
2feceb5e | 1809 | fds = fdset_free(fds); |
f50e0a01 | 1810 | |
74ca738f | 1811 | arg_serialization = safe_fclose(arg_serialization); |
bf4df7c3 LP |
1812 | |
1813 | if (queue_default_job) { | |
4afd3348 | 1814 | _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL; |
1c27d3f3 | 1815 | Unit *target = NULL; |
bacbccb7 | 1816 | Job *default_unit_job; |
398ef8ba | 1817 | |
fa0f4d8a | 1818 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1819 | |
e96d6be7 | 1820 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
718db961 LP |
1821 | if (r < 0) |
1822 | log_error("Failed to load default target: %s", bus_error_message(&error, r)); | |
1823 | else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) | |
c33b3297 | 1824 | log_error_errno(target->load_error, "Failed to load default target: %m"); |
ac155bb8 | 1825 | else if (target->load_state == UNIT_MASKED) |
6daf4f90 | 1826 | log_error("Default target masked."); |
27b14a22 | 1827 | |
ac155bb8 | 1828 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1829 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1830 | |
e96d6be7 LP |
1831 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1832 | if (r < 0) { | |
4104970e | 1833 | log_emergency("Failed to load rescue target: %s", bus_error_message(&error, r)); |
cb6531be | 1834 | error_message = "Failed to load rescue target"; |
a16e1123 | 1835 | goto finish; |
11ddb6f4 | 1836 | } else if (target->load_state == UNIT_ERROR || target->load_state == UNIT_NOT_FOUND) { |
c33b3297 | 1837 | log_emergency_errno(target->load_error, "Failed to load rescue target: %m"); |
cb6531be | 1838 | error_message = "Failed to load rescue target"; |
1c27d3f3 | 1839 | goto finish; |
ac155bb8 | 1840 | } else if (target->load_state == UNIT_MASKED) { |
4104970e | 1841 | log_emergency("Rescue target masked."); |
cb6531be | 1842 | error_message = "Rescue target masked"; |
00dc5d76 | 1843 | goto finish; |
a16e1123 LP |
1844 | } |
1845 | } | |
37d88da7 | 1846 | |
ac155bb8 | 1847 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1848 | |
fa0f4d8a | 1849 | if (arg_action == ACTION_TEST) { |
40d50879 | 1850 | printf("-> By units:\n"); |
a16e1123 LP |
1851 | manager_dump_units(m, stdout, "\t"); |
1852 | } | |
1853 | ||
4bd29fe5 | 1854 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, &error, &default_unit_job); |
ab17a050 | 1855 | if (r == -EPERM) { |
718db961 | 1856 | log_debug("Default target could not be isolated, starting instead: %s", bus_error_message(&error, r)); |
ab17a050 | 1857 | |
5022ce71 LP |
1858 | sd_bus_error_free(&error); |
1859 | ||
4bd29fe5 | 1860 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, &error, &default_unit_job); |
ab17a050 | 1861 | if (r < 0) { |
4104970e | 1862 | log_emergency("Failed to start default target: %s", bus_error_message(&error, r)); |
cb6531be | 1863 | error_message = "Failed to start default target"; |
ab17a050 LP |
1864 | goto finish; |
1865 | } | |
1866 | } else if (r < 0) { | |
4104970e | 1867 | log_emergency("Failed to isolate default target: %s", bus_error_message(&error, r)); |
cb6531be | 1868 | error_message = "Failed to isolate default target"; |
37d88da7 LP |
1869 | goto finish; |
1870 | } | |
ab17a050 | 1871 | |
bacbccb7 | 1872 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1873 | |
07672f49 LP |
1874 | after_startup = now(CLOCK_MONOTONIC); |
1875 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1876 | "Loaded units and determined initial transaction in %s.", | |
fdb14b7e | 1877 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup, 100 * USEC_PER_MSEC)); |
07672f49 | 1878 | |
fa0f4d8a | 1879 | if (arg_action == ACTION_TEST) { |
40d50879 | 1880 | printf("-> By jobs:\n"); |
a16e1123 | 1881 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1882 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1883 | goto finish; |
1884 | } | |
e965d56d | 1885 | } |
d46de8a1 | 1886 | |
a16e1123 | 1887 | for (;;) { |
e96d6be7 LP |
1888 | r = manager_loop(m); |
1889 | if (r < 0) { | |
da927ba9 | 1890 | log_emergency_errno(r, "Failed to run main loop: %m"); |
cb6531be | 1891 | error_message = "Failed to run main loop"; |
a16e1123 LP |
1892 | goto finish; |
1893 | } | |
11dd41ce | 1894 | |
a16e1123 | 1895 | switch (m->exit_code) { |
e965d56d | 1896 | |
a16e1123 | 1897 | case MANAGER_RELOAD: |
e015090f | 1898 | log_info("Reloading."); |
06af2a04 TB |
1899 | |
1900 | r = parse_config_file(); | |
1901 | if (r < 0) | |
1902 | log_error("Failed to parse config file."); | |
1903 | ||
1904 | manager_set_defaults(m); | |
1905 | ||
e96d6be7 LP |
1906 | r = manager_reload(m); |
1907 | if (r < 0) | |
da927ba9 | 1908 | log_error_errno(r, "Failed to reload: %m"); |
a16e1123 | 1909 | break; |
cea8e32e | 1910 | |
a16e1123 | 1911 | case MANAGER_REEXECUTE: |
664f88a7 | 1912 | |
cb6531be | 1913 | if (prepare_reexecute(m, &arg_serialization, &fds, false) < 0) { |
6b9af963 | 1914 | error_message = "Failed to prepare for reexecution"; |
a16e1123 | 1915 | goto finish; |
cb6531be | 1916 | } |
60918275 | 1917 | |
a16e1123 | 1918 | reexecute = true; |
e015090f | 1919 | log_notice("Reexecuting."); |
a16e1123 LP |
1920 | goto finish; |
1921 | ||
664f88a7 LP |
1922 | case MANAGER_SWITCH_ROOT: |
1923 | /* Steal the switch root parameters */ | |
41669317 | 1924 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1925 | switch_root_init = m->switch_root_init; |
1926 | m->switch_root = m->switch_root_init = NULL; | |
1927 | ||
1928 | if (!switch_root_init) | |
cb6531be | 1929 | if (prepare_reexecute(m, &arg_serialization, &fds, true) < 0) { |
6b9af963 | 1930 | error_message = "Failed to prepare for reexecution"; |
664f88a7 | 1931 | goto finish; |
cb6531be | 1932 | } |
664f88a7 LP |
1933 | |
1934 | reexecute = true; | |
1935 | log_notice("Switching root."); | |
1936 | goto finish; | |
1937 | ||
287419c1 | 1938 | case MANAGER_EXIT: |
97792515 LP |
1939 | retval = m->return_value; |
1940 | ||
463d0d15 | 1941 | if (MANAGER_IS_USER(m)) { |
8ebfe0cb DH |
1942 | log_debug("Exit."); |
1943 | goto finish; | |
1944 | } | |
1945 | ||
1946 | /* fallthrough */ | |
b9080b03 FF |
1947 | case MANAGER_REBOOT: |
1948 | case MANAGER_POWEROFF: | |
1949 | case MANAGER_HALT: | |
1950 | case MANAGER_KEXEC: { | |
1951 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
287419c1 | 1952 | [MANAGER_EXIT] = "exit", |
b9080b03 FF |
1953 | [MANAGER_REBOOT] = "reboot", |
1954 | [MANAGER_POWEROFF] = "poweroff", | |
1955 | [MANAGER_HALT] = "halt", | |
1956 | [MANAGER_KEXEC] = "kexec" | |
1957 | }; | |
1958 | ||
1959 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1960 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1961 | |
1962 | log_notice("Shutting down."); | |
1963 | goto finish; | |
1964 | } | |
1965 | ||
a16e1123 LP |
1966 | default: |
1967 | assert_not_reached("Unknown exit code."); | |
1968 | } | |
1969 | } | |
f170852a | 1970 | |
60918275 | 1971 | finish: |
b87c2aa6 ZJS |
1972 | pager_close(); |
1973 | ||
97792515 | 1974 | if (m) |
81f5fc2d | 1975 | arg_shutdown_watchdog = m->shutdown_watchdog; |
fe382237 | 1976 | |
06d8d842 | 1977 | m = manager_free(m); |
60918275 | 1978 | |
1f6b4113 | 1979 | for (j = 0; j < ELEMENTSOF(arg_default_rlimit); j++) |
a1e58e8e | 1980 | arg_default_rlimit[j] = mfree(arg_default_rlimit[j]); |
c93ff2e9 | 1981 | |
97b11eed | 1982 | arg_default_unit = mfree(arg_default_unit); |
fe382237 | 1983 | arg_join_controllers = strv_free_free(arg_join_controllers); |
97b11eed | 1984 | arg_default_environment = strv_free(arg_default_environment); |
525d3cc7 | 1985 | arg_syscall_archs = set_free(arg_syscall_archs); |
d3b1c508 | 1986 | |
cc56fafe | 1987 | mac_selinux_finish(); |
b2bb3dbe | 1988 | |
a16e1123 | 1989 | if (reexecute) { |
664f88a7 | 1990 | const char **args; |
e564a982 | 1991 | unsigned i, args_size; |
a16e1123 | 1992 | |
664f88a7 LP |
1993 | /* Close and disarm the watchdog, so that the new |
1994 | * instance can reinitialize it, but doesn't get | |
1995 | * rebooted while we do that */ | |
1996 | watchdog_close(true); | |
a16e1123 | 1997 | |
4096d6f5 LP |
1998 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1999 | * that the new systemd can pass the kernel default to | |
2000 | * its child processes */ | |
2001 | if (saved_rlimit_nofile.rlim_cur > 0) | |
92ca4cac | 2002 | (void) setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); |
4096d6f5 | 2003 | |
41669317 | 2004 | if (switch_root_dir) { |
cee530bb LP |
2005 | /* Kill all remaining processes from the |
2006 | * initrd, but don't wait for them, so that we | |
2007 | * can handle the SIGCHLD for them after | |
2008 | * deserializing. */ | |
0bee65f0 | 2009 | broadcast_signal(SIGTERM, false, true); |
bd3fa1d2 | 2010 | |
5a4bf02f HH |
2011 | /* And switch root with MS_MOVE, because we remove the old directory afterwards and detach it. */ |
2012 | r = switch_root(switch_root_dir, "/mnt", true, MS_MOVE); | |
41669317 | 2013 | if (r < 0) |
da927ba9 | 2014 | log_error_errno(r, "Failed to switch root, trying to continue: %m"); |
41669317 | 2015 | } |
a16e1123 | 2016 | |
d03bc1b8 | 2017 | args_size = MAX(6, argc+1); |
e564a982 | 2018 | args = newa(const char*, args_size); |
a16e1123 | 2019 | |
664f88a7 | 2020 | if (!switch_root_init) { |
5ffa8c81 | 2021 | char sfd[DECIMAL_STR_MAX(int) + 1]; |
a16e1123 | 2022 | |
664f88a7 LP |
2023 | /* First try to spawn ourselves with the right |
2024 | * path, and with full serialization. We do | |
2025 | * this only if the user didn't specify an | |
2026 | * explicit init to spawn. */ | |
edb9aaa8 | 2027 | |
d3b1c508 | 2028 | assert(arg_serialization); |
664f88a7 | 2029 | assert(fds); |
edb9aaa8 | 2030 | |
5ffa8c81 | 2031 | xsprintf(sfd, "%i", fileno(arg_serialization)); |
edb9aaa8 | 2032 | |
664f88a7 LP |
2033 | i = 0; |
2034 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 2035 | if (switch_root_dir) |
2660882b | 2036 | args[i++] = "--switched-root"; |
463d0d15 | 2037 | args[i++] = arg_system ? "--system" : "--user"; |
664f88a7 LP |
2038 | args[i++] = "--deserialize"; |
2039 | args[i++] = sfd; | |
2040 | args[i++] = NULL; | |
edb9aaa8 | 2041 | |
e564a982 | 2042 | assert(i <= args_size); |
dcadc967 EV |
2043 | |
2044 | /* | |
2045 | * We want valgrind to print its memory usage summary before reexecution. | |
2046 | * Valgrind won't do this is on its own on exec(), but it will do it on exit(). | |
2047 | * Hence, to ensure we get a summary here, fork() off a child, let it exit() cleanly, | |
2048 | * so that it prints the summary, and wait() for it in the parent, before proceeding into the exec(). | |
2049 | */ | |
2050 | valgrind_summary_hack(); | |
2051 | ||
92ca4cac | 2052 | (void) execv(args[0], (char* const*) args); |
664f88a7 | 2053 | } |
6e98720f | 2054 | |
664f88a7 LP |
2055 | /* Try the fallback, if there is any, without any |
2056 | * serialization. We pass the original argv[] and | |
2057 | * envp[]. (Well, modulo the ordering changes due to | |
2058 | * getopt() in argv[], and some cleanups in envp[], | |
2059 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 2060 | |
74ca738f | 2061 | arg_serialization = safe_fclose(arg_serialization); |
2feceb5e | 2062 | fds = fdset_free(fds); |
a16e1123 | 2063 | |
bd64d82c ZJS |
2064 | /* Reopen the console */ |
2065 | (void) make_console_stdio(); | |
2066 | ||
d3b1c508 | 2067 | for (j = 1, i = 1; j < (unsigned) argc; j++) |
664f88a7 | 2068 | args[i++] = argv[j]; |
a16e1123 | 2069 | args[i++] = NULL; |
e564a982 | 2070 | assert(i <= args_size); |
b8f83232 | 2071 | |
1b6d7fa7 | 2072 | /* Reenable any blocked signals, especially important |
5a85ca1c | 2073 | * if we switch from initial ramdisk to init=... */ |
ce30c8dc LP |
2074 | (void) reset_all_signal_handlers(); |
2075 | (void) reset_signal_mask(); | |
5a85ca1c | 2076 | |
b8f83232 LP |
2077 | if (switch_root_init) { |
2078 | args[0] = switch_root_init; | |
92ca4cac | 2079 | (void) execv(args[0], (char* const*) args); |
56f64d95 | 2080 | log_warning_errno(errno, "Failed to execute configured init, trying fallback: %m"); |
b8f83232 LP |
2081 | } |
2082 | ||
2083 | args[0] = "/sbin/init"; | |
92ca4cac | 2084 | (void) execv(args[0], (char* const*) args); |
a16e1123 | 2085 | |
745e2fb7 KS |
2086 | if (errno == ENOENT) { |
2087 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 2088 | |
745e2fb7 KS |
2089 | args[0] = "/bin/sh"; |
2090 | args[1] = NULL; | |
92ca4cac | 2091 | (void) execv(args[0], (char* const*) args); |
56f64d95 | 2092 | log_error_errno(errno, "Failed to execute /bin/sh, giving up: %m"); |
745e2fb7 | 2093 | } else |
56f64d95 | 2094 | log_warning_errno(errno, "Failed to execute /sbin/init, giving up: %m"); |
a16e1123 LP |
2095 | } |
2096 | ||
74ca738f | 2097 | arg_serialization = safe_fclose(arg_serialization); |
2feceb5e | 2098 | fds = fdset_free(fds); |
a16e1123 | 2099 | |
54b434b1 LP |
2100 | #ifdef HAVE_VALGRIND_VALGRIND_H |
2101 | /* If we are PID 1 and running under valgrind, then let's exit | |
2102 | * here explicitly. valgrind will only generate nice output on | |
2103 | * exit(), not on exec(), hence let's do the former not the | |
2104 | * latter here. */ | |
2105 | if (getpid() == 1 && RUNNING_ON_VALGRIND) | |
2106 | return 0; | |
2107 | #endif | |
2108 | ||
b9080b03 | 2109 | if (shutdown_verb) { |
b1e90ec5 | 2110 | char log_level[DECIMAL_STR_MAX(int) + 1]; |
287419c1 AC |
2111 | char exit_code[DECIMAL_STR_MAX(uint8_t) + 1]; |
2112 | const char* command_line[11] = { | |
b9080b03 FF |
2113 | SYSTEMD_SHUTDOWN_BINARY_PATH, |
2114 | shutdown_verb, | |
b1e90ec5 ZJS |
2115 | "--log-level", log_level, |
2116 | "--log-target", | |
b9080b03 | 2117 | }; |
b1e90ec5 | 2118 | unsigned pos = 5; |
e3e45d4f | 2119 | _cleanup_strv_free_ char **env_block = NULL; |
15bd5aee LP |
2120 | |
2121 | assert(command_line[pos] == NULL); | |
e3e45d4f | 2122 | env_block = strv_copy(environ); |
b9080b03 | 2123 | |
5ffa8c81 | 2124 | xsprintf(log_level, "%d", log_get_max_level()); |
b1e90ec5 ZJS |
2125 | |
2126 | switch (log_get_target()) { | |
92ca4cac | 2127 | |
b1e90ec5 ZJS |
2128 | case LOG_TARGET_KMSG: |
2129 | case LOG_TARGET_JOURNAL_OR_KMSG: | |
2130 | case LOG_TARGET_SYSLOG_OR_KMSG: | |
2131 | command_line[pos++] = "kmsg"; | |
2132 | break; | |
2133 | ||
10f00ff1 ILG |
2134 | case LOG_TARGET_NULL: |
2135 | command_line[pos++] = "null"; | |
2136 | break; | |
2137 | ||
b1e90ec5 ZJS |
2138 | case LOG_TARGET_CONSOLE: |
2139 | default: | |
2140 | command_line[pos++] = "console"; | |
2141 | break; | |
2142 | }; | |
2143 | ||
2144 | if (log_get_show_color()) | |
2145 | command_line[pos++] = "--log-color"; | |
2146 | ||
2147 | if (log_get_show_location()) | |
2148 | command_line[pos++] = "--log-location"; | |
2149 | ||
287419c1 AC |
2150 | if (streq(shutdown_verb, "exit")) { |
2151 | command_line[pos++] = "--exit-code"; | |
2152 | command_line[pos++] = exit_code; | |
97792515 | 2153 | xsprintf(exit_code, "%d", retval); |
287419c1 AC |
2154 | } |
2155 | ||
26abdc73 | 2156 | assert(pos < ELEMENTSOF(command_line)); |
b1e90ec5 | 2157 | |
5146c619 | 2158 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0 && arg_shutdown_watchdog != USEC_INFINITY) { |
e3e45d4f | 2159 | char *e; |
d18f337c | 2160 | |
e96d6be7 LP |
2161 | /* If we reboot let's set the shutdown |
2162 | * watchdog and tell the shutdown binary to | |
2163 | * repeatedly ping it */ | |
c2cc6b9a LP |
2164 | r = watchdog_set_timeout(&arg_shutdown_watchdog); |
2165 | watchdog_close(r < 0); | |
e96d6be7 | 2166 | |
e3e45d4f SP |
2167 | /* Tell the binary how often to ping, ignore failure */ |
2168 | if (asprintf(&e, "WATCHDOG_USEC="USEC_FMT, arg_shutdown_watchdog) > 0) | |
92ca4cac | 2169 | (void) strv_push(&env_block, e); |
e3e45d4f | 2170 | } else |
e96d6be7 LP |
2171 | watchdog_close(true); |
2172 | ||
66713f77 LP |
2173 | /* Avoid the creation of new processes forked by the |
2174 | * kernel; at this point, we will not listen to the | |
2175 | * signals anyway */ | |
75f86906 | 2176 | if (detect_container() <= 0) |
e155a0aa | 2177 | (void) cg_uninstall_release_agent(SYSTEMD_CGROUP_CONTROLLER); |
ad929bcc | 2178 | |
d18f337c | 2179 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
56f64d95 | 2180 | log_error_errno(errno, "Failed to execute shutdown binary, %s: %m", |
b1e90ec5 | 2181 | getpid() == 1 ? "freezing" : "quitting"); |
b9080b03 FF |
2182 | } |
2183 | ||
cb6531be ZJS |
2184 | if (getpid() == 1) { |
2185 | if (error_message) | |
2186 | manager_status_printf(NULL, STATUS_TYPE_EMERGENCY, | |
1fc464f6 | 2187 | ANSI_HIGHLIGHT_RED "!!!!!!" ANSI_NORMAL, |
cb6531be | 2188 | "%s, freezing.", error_message); |
b9e74c39 | 2189 | freeze_or_reboot(); |
cb6531be | 2190 | } |
c3b3c274 | 2191 | |
60918275 LP |
2192 | return retval; |
2193 | } |