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d6c9574f | 1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
60918275 | 2 | |
a7334b09 LP |
3 | /*** |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2010 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
a7334b09 LP |
11 | (at your option) any later version. |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
5430f7f2 | 16 | Lesser General Public License for more details. |
a7334b09 | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
a7334b09 LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
ea430986 LP |
22 | #include <dbus/dbus.h> |
23 | ||
60918275 LP |
24 | #include <stdio.h> |
25 | #include <errno.h> | |
26 | #include <string.h> | |
16354eff | 27 | #include <unistd.h> |
4ade7963 LP |
28 | #include <sys/types.h> |
29 | #include <sys/stat.h> | |
f170852a | 30 | #include <getopt.h> |
97c4f35c | 31 | #include <signal.h> |
4fc935ca | 32 | #include <sys/wait.h> |
80876c20 | 33 | #include <fcntl.h> |
f3b6a3ed | 34 | #include <sys/prctl.h> |
664f88a7 | 35 | #include <sys/mount.h> |
60918275 LP |
36 | |
37 | #include "manager.h" | |
16354eff | 38 | #include "log.h" |
302e8c4c | 39 | #include "load-fragment.h" |
a16e1123 | 40 | #include "fdset.h" |
514f4ef5 | 41 | #include "special.h" |
487393e9 | 42 | #include "conf-parser.h" |
398ef8ba | 43 | #include "bus-errors.h" |
ad780f19 | 44 | #include "missing.h" |
e51bc1a2 | 45 | #include "label.h" |
302e27c8 | 46 | #include "build.h" |
06d4c99a | 47 | #include "strv.h" |
f6a6225e | 48 | #include "def.h" |
b52aae1d | 49 | #include "virt.h" |
e96d6be7 | 50 | #include "watchdog.h" |
664f88a7 | 51 | #include "path-util.h" |
41669317 | 52 | #include "switch-root.h" |
60918275 | 53 | |
b6e66135 LP |
54 | #include "mount-setup.h" |
55 | #include "loopback-setup.h" | |
56 | #include "kmod-setup.h" | |
57 | #include "hostname-setup.h" | |
58 | #include "machine-id-setup.h" | |
59 | #include "locale-setup.h" | |
bbc98d32 | 60 | #include "hwclock.h" |
b6e66135 LP |
61 | #include "selinux-setup.h" |
62 | #include "ima-setup.h" | |
63 | ||
f170852a LP |
64 | static enum { |
65 | ACTION_RUN, | |
e965d56d | 66 | ACTION_HELP, |
e537352b | 67 | ACTION_TEST, |
4288f619 LP |
68 | ACTION_DUMP_CONFIGURATION_ITEMS, |
69 | ACTION_DONE | |
fa0f4d8a | 70 | } arg_action = ACTION_RUN; |
f170852a | 71 | |
fa0f4d8a LP |
72 | static char *arg_default_unit = NULL; |
73 | static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; | |
74 | ||
75 | static bool arg_dump_core = true; | |
76 | static bool arg_crash_shell = false; | |
77 | static int arg_crash_chvt = -1; | |
78 | static bool arg_confirm_spawn = false; | |
9e58ff9c | 79 | static bool arg_show_status = true; |
07459bb6 | 80 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 81 | static bool arg_sysv_console = true; |
07459bb6 | 82 | #endif |
06d4c99a | 83 | static char **arg_default_controllers = NULL; |
0c85a4f3 | 84 | static char ***arg_join_controllers = NULL; |
706343f4 | 85 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 86 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
e96d6be7 LP |
87 | static usec_t arg_runtime_watchdog = 0; |
88 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
4fc935ca | 89 | |
a16e1123 | 90 | static FILE* serialization = NULL; |
80876c20 | 91 | |
6f5e3f35 LP |
92 | static void nop_handler(int sig) { |
93 | } | |
94 | ||
93a46b0b | 95 | _noreturn_ static void crash(int sig) { |
97c4f35c | 96 | |
fa0f4d8a | 97 | if (!arg_dump_core) |
582a507f | 98 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 99 | else { |
6f5e3f35 | 100 | struct sigaction sa; |
97c4f35c LP |
101 | pid_t pid; |
102 | ||
6f5e3f35 LP |
103 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
104 | zero(sa); | |
105 | sa.sa_handler = nop_handler; | |
106 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
107 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
108 | ||
97c4f35c | 109 | if ((pid = fork()) < 0) |
582a507f | 110 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
111 | |
112 | else if (pid == 0) { | |
97c4f35c LP |
113 | struct rlimit rl; |
114 | ||
115 | /* Enable default signal handler for core dump */ | |
116 | zero(sa); | |
117 | sa.sa_handler = SIG_DFL; | |
118 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
119 | ||
120 | /* Don't limit the core dump size */ | |
121 | zero(rl); | |
122 | rl.rlim_cur = RLIM_INFINITY; | |
123 | rl.rlim_max = RLIM_INFINITY; | |
124 | setrlimit(RLIMIT_CORE, &rl); | |
125 | ||
126 | /* Just to be sure... */ | |
127 | assert_se(chdir("/") == 0); | |
128 | ||
129 | /* Raise the signal again */ | |
130 | raise(sig); | |
131 | ||
132 | assert_not_reached("We shouldn't be here..."); | |
133 | _exit(1); | |
4fc935ca LP |
134 | |
135 | } else { | |
8e12a6ae LP |
136 | siginfo_t status; |
137 | int r; | |
4fc935ca LP |
138 | |
139 | /* Order things nicely. */ | |
8e12a6ae LP |
140 | if ((r = wait_for_terminate(pid, &status)) < 0) |
141 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); | |
142 | else if (status.si_code != CLD_DUMPED) | |
582a507f | 143 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 144 | else |
582a507f | 145 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
146 | } |
147 | } | |
148 | ||
fa0f4d8a LP |
149 | if (arg_crash_chvt) |
150 | chvt(arg_crash_chvt); | |
601f6a1e | 151 | |
fa0f4d8a | 152 | if (arg_crash_shell) { |
6f5e3f35 LP |
153 | struct sigaction sa; |
154 | pid_t pid; | |
8c43883a | 155 | |
4fc935ca LP |
156 | log_info("Executing crash shell in 10s..."); |
157 | sleep(10); | |
158 | ||
6f5e3f35 LP |
159 | /* Let the kernel reap children for us */ |
160 | zero(sa); | |
161 | sa.sa_handler = SIG_IGN; | |
162 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
163 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 164 | |
6f5e3f35 LP |
165 | if ((pid = fork()) < 0) |
166 | log_error("Failed to fork off crash shell: %s", strerror(errno)); | |
167 | else if (pid == 0) { | |
843d2643 | 168 | int fd, r; |
ea5652c2 | 169 | |
21de3988 | 170 | if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0) |
ea5652c2 | 171 | log_error("Failed to acquire terminal: %s", strerror(-fd)); |
5b2a0903 | 172 | else if ((r = make_stdio(fd)) < 0) |
843d2643 | 173 | log_error("Failed to duplicate terminal fd: %s", strerror(-r)); |
ea5652c2 | 174 | |
6f5e3f35 LP |
175 | execl("/bin/sh", "/bin/sh", NULL); |
176 | ||
177 | log_error("execl() failed: %s", strerror(errno)); | |
178 | _exit(1); | |
179 | } | |
c99b188e | 180 | |
f8e08a77 | 181 | log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
182 | } |
183 | ||
184 | log_info("Freezing execution."); | |
97c4f35c LP |
185 | freeze(); |
186 | } | |
187 | ||
188 | static void install_crash_handler(void) { | |
189 | struct sigaction sa; | |
190 | ||
191 | zero(sa); | |
192 | ||
193 | sa.sa_handler = crash; | |
194 | sa.sa_flags = SA_NODEFER; | |
195 | ||
1b91d3e8 | 196 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 197 | } |
f170852a | 198 | |
843d2643 LP |
199 | static int console_setup(bool do_reset) { |
200 | int tty_fd, r; | |
80876c20 | 201 | |
843d2643 LP |
202 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
203 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 204 | |
843d2643 LP |
205 | release_terminal(); |
206 | ||
207 | if (!do_reset) | |
208 | return 0; | |
80876c20 | 209 | |
512947d4 MS |
210 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
211 | if (tty_fd < 0) { | |
843d2643 LP |
212 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); |
213 | return -tty_fd; | |
214 | } | |
80876c20 | 215 | |
512947d4 MS |
216 | /* We don't want to force text mode. |
217 | * plymouth may be showing pictures already from initrd. */ | |
218 | r = reset_terminal_fd(tty_fd, false); | |
219 | if (r < 0) | |
843d2643 LP |
220 | log_error("Failed to reset /dev/console: %s", strerror(-r)); |
221 | ||
222 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
223 | return r; |
224 | } | |
225 | ||
f170852a LP |
226 | static int set_default_unit(const char *u) { |
227 | char *c; | |
228 | ||
229 | assert(u); | |
230 | ||
231 | if (!(c = strdup(u))) | |
232 | return -ENOMEM; | |
233 | ||
fa0f4d8a LP |
234 | free(arg_default_unit); |
235 | arg_default_unit = c; | |
f170852a LP |
236 | return 0; |
237 | } | |
238 | ||
239 | static int parse_proc_cmdline_word(const char *word) { | |
240 | ||
241 | static const char * const rlmap[] = { | |
ed370f5d | 242 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 243 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
244 | "single", SPECIAL_RESCUE_TARGET, |
245 | "-s", SPECIAL_RESCUE_TARGET, | |
246 | "s", SPECIAL_RESCUE_TARGET, | |
247 | "S", SPECIAL_RESCUE_TARGET, | |
248 | "1", SPECIAL_RESCUE_TARGET, | |
249 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
250 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
251 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
252 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
253 | }; |
254 | ||
5192bd19 LP |
255 | assert(word); |
256 | ||
2f198e2f LP |
257 | if (startswith(word, "systemd.unit=")) |
258 | return set_default_unit(word + 13); | |
f170852a LP |
259 | |
260 | else if (startswith(word, "systemd.log_target=")) { | |
261 | ||
262 | if (log_set_target_from_string(word + 19) < 0) | |
263 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
264 | ||
265 | } else if (startswith(word, "systemd.log_level=")) { | |
266 | ||
267 | if (log_set_max_level_from_string(word + 18) < 0) | |
268 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
269 | ||
bbe63281 LP |
270 | } else if (startswith(word, "systemd.log_color=")) { |
271 | ||
272 | if (log_show_color_from_string(word + 18) < 0) | |
273 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
274 | ||
275 | } else if (startswith(word, "systemd.log_location=")) { | |
276 | ||
277 | if (log_show_location_from_string(word + 21) < 0) | |
278 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
279 | ||
4fc935ca LP |
280 | } else if (startswith(word, "systemd.dump_core=")) { |
281 | int r; | |
282 | ||
283 | if ((r = parse_boolean(word + 18)) < 0) | |
509b6efb | 284 | log_warning("Failed to parse dump core switch %s. Ignoring.", word + 18); |
4fc935ca | 285 | else |
fa0f4d8a | 286 | arg_dump_core = r; |
4fc935ca LP |
287 | |
288 | } else if (startswith(word, "systemd.crash_shell=")) { | |
289 | int r; | |
290 | ||
291 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 292 | log_warning("Failed to parse crash shell switch %s. Ignoring.", word + 20); |
4fc935ca | 293 | else |
fa0f4d8a | 294 | arg_crash_shell = r; |
5e7ee61c LP |
295 | |
296 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
297 | int r; | |
298 | ||
299 | if ((r = parse_boolean(word + 22)) < 0) | |
509b6efb | 300 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", word + 22); |
5e7ee61c | 301 | else |
fa0f4d8a | 302 | arg_confirm_spawn = r; |
5e7ee61c | 303 | |
601f6a1e LP |
304 | } else if (startswith(word, "systemd.crash_chvt=")) { |
305 | int k; | |
306 | ||
307 | if (safe_atoi(word + 19, &k) < 0) | |
509b6efb | 308 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", word + 19); |
601f6a1e | 309 | else |
fa0f4d8a | 310 | arg_crash_chvt = k; |
601f6a1e | 311 | |
9e58ff9c LP |
312 | } else if (startswith(word, "systemd.show_status=")) { |
313 | int r; | |
314 | ||
315 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 316 | log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); |
6e98720f | 317 | else |
9e58ff9c | 318 | arg_show_status = r; |
0a494f1f LP |
319 | } else if (startswith(word, "systemd.default_standard_output=")) { |
320 | int r; | |
321 | ||
322 | if ((r = exec_output_from_string(word + 32)) < 0) | |
509b6efb | 323 | log_warning("Failed to parse default standard output switch %s. Ignoring.", word + 32); |
0a494f1f LP |
324 | else |
325 | arg_default_std_output = r; | |
326 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
327 | int r; | |
328 | ||
329 | if ((r = exec_output_from_string(word + 31)) < 0) | |
509b6efb | 330 | log_warning("Failed to parse default standard error switch %s. Ignoring.", word + 31); |
0a494f1f LP |
331 | else |
332 | arg_default_std_error = r; | |
9e7c5357 WD |
333 | } else if (startswith(word, "systemd.setenv=")) { |
334 | char *cenv, *eq; | |
335 | int r; | |
336 | ||
337 | cenv = strdup(word + 15); | |
338 | if (!cenv) | |
339 | return -ENOMEM; | |
340 | ||
341 | eq = strchr(cenv, '='); | |
342 | if (!eq) { | |
343 | r = unsetenv(cenv); | |
344 | if (r < 0) | |
345 | log_warning("unsetenv failed %s. Ignoring.", strerror(errno)); | |
346 | } else { | |
347 | *eq = 0; | |
348 | r = setenv(cenv, eq + 1, 1); | |
349 | if (r < 0) | |
350 | log_warning("setenv failed %s. Ignoring.", strerror(errno)); | |
351 | } | |
352 | free(cenv); | |
07459bb6 | 353 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
354 | } else if (startswith(word, "systemd.sysv_console=")) { |
355 | int r; | |
356 | ||
357 | if ((r = parse_boolean(word + 21)) < 0) | |
509b6efb | 358 | log_warning("Failed to parse SysV console switch %s. Ignoring.", word + 20); |
6e98720f LP |
359 | else |
360 | arg_sysv_console = r; | |
07459bb6 | 361 | #endif |
9e58ff9c | 362 | |
4fc935ca LP |
363 | } else if (startswith(word, "systemd.")) { |
364 | ||
365 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
366 | ||
bbe63281 LP |
367 | log_info("Supported kernel switches:\n" |
368 | "systemd.unit=UNIT Default unit to start\n" | |
bbe63281 | 369 | "systemd.dump_core=0|1 Dump core on crash\n" |
9e58ff9c | 370 | "systemd.crash_shell=0|1 Run shell on crash\n" |
bbe63281 | 371 | "systemd.crash_chvt=N Change to VT #N on crash\n" |
9e58ff9c | 372 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" |
6e98720f | 373 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" |
07459bb6 | 374 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 375 | "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n" |
07459bb6 | 376 | #endif |
4cfa2c99 | 377 | "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n" |
6e98720f LP |
378 | " Log target\n" |
379 | "systemd.log_level=LEVEL Log level\n" | |
380 | "systemd.log_color=0|1 Highlight important log messages\n" | |
0a494f1f | 381 | "systemd.log_location=0|1 Include code location in log messages\n" |
706343f4 | 382 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" |
0a494f1f | 383 | " Set default log output for services\n" |
706343f4 | 384 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" |
0a494f1f | 385 | " Set default log error output for services\n"); |
4fc935ca | 386 | |
a9c501a5 | 387 | } else if (streq(word, "quiet")) { |
6e98720f | 388 | arg_show_status = false; |
07459bb6 | 389 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 390 | arg_sysv_console = false; |
07459bb6 | 391 | #endif |
9e58ff9c | 392 | } else { |
f170852a LP |
393 | unsigned i; |
394 | ||
395 | /* SysV compatibility */ | |
f170852a LP |
396 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
397 | if (streq(word, rlmap[i])) | |
398 | return set_default_unit(rlmap[i+1]); | |
399 | } | |
400 | ||
401 | return 0; | |
402 | } | |
403 | ||
f975e971 | 404 | static int config_parse_level2( |
487393e9 LP |
405 | const char *filename, |
406 | unsigned line, | |
407 | const char *section, | |
408 | const char *lvalue, | |
3731f1ea | 409 | int ltype, |
487393e9 LP |
410 | const char *rvalue, |
411 | void *data, | |
412 | void *userdata) { | |
413 | ||
414 | assert(filename); | |
415 | assert(lvalue); | |
416 | assert(rvalue); | |
417 | ||
418 | log_set_max_level_from_string(rvalue); | |
419 | return 0; | |
420 | } | |
421 | ||
422 | static int config_parse_target( | |
423 | const char *filename, | |
424 | unsigned line, | |
425 | const char *section, | |
426 | const char *lvalue, | |
3731f1ea | 427 | int ltype, |
487393e9 LP |
428 | const char *rvalue, |
429 | void *data, | |
430 | void *userdata) { | |
431 | ||
432 | assert(filename); | |
433 | assert(lvalue); | |
434 | assert(rvalue); | |
435 | ||
436 | log_set_target_from_string(rvalue); | |
437 | return 0; | |
438 | } | |
439 | ||
440 | static int config_parse_color( | |
441 | const char *filename, | |
442 | unsigned line, | |
443 | const char *section, | |
444 | const char *lvalue, | |
3731f1ea | 445 | int ltype, |
487393e9 LP |
446 | const char *rvalue, |
447 | void *data, | |
448 | void *userdata) { | |
449 | ||
450 | assert(filename); | |
451 | assert(lvalue); | |
452 | assert(rvalue); | |
453 | ||
454 | log_show_color_from_string(rvalue); | |
455 | return 0; | |
456 | } | |
457 | ||
458 | static int config_parse_location( | |
459 | const char *filename, | |
460 | unsigned line, | |
461 | const char *section, | |
462 | const char *lvalue, | |
3731f1ea | 463 | int ltype, |
487393e9 LP |
464 | const char *rvalue, |
465 | void *data, | |
466 | void *userdata) { | |
467 | ||
468 | assert(filename); | |
469 | assert(lvalue); | |
470 | assert(rvalue); | |
471 | ||
472 | log_show_location_from_string(rvalue); | |
473 | return 0; | |
474 | } | |
475 | ||
f975e971 | 476 | static int config_parse_cpu_affinity2( |
487393e9 LP |
477 | const char *filename, |
478 | unsigned line, | |
479 | const char *section, | |
480 | const char *lvalue, | |
3731f1ea | 481 | int ltype, |
487393e9 LP |
482 | const char *rvalue, |
483 | void *data, | |
484 | void *userdata) { | |
485 | ||
486 | char *w; | |
487 | size_t l; | |
488 | char *state; | |
489 | cpu_set_t *c = NULL; | |
490 | unsigned ncpus = 0; | |
491 | ||
492 | assert(filename); | |
493 | assert(lvalue); | |
494 | assert(rvalue); | |
495 | ||
f60f22df | 496 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
497 | char *t; |
498 | int r; | |
499 | unsigned cpu; | |
500 | ||
501 | if (!(t = strndup(w, l))) | |
502 | return -ENOMEM; | |
503 | ||
504 | r = safe_atou(t, &cpu); | |
505 | free(t); | |
506 | ||
507 | if (!c) | |
508 | if (!(c = cpu_set_malloc(&ncpus))) | |
509 | return -ENOMEM; | |
510 | ||
511 | if (r < 0 || cpu >= ncpus) { | |
512 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
513 | CPU_FREE(c); | |
514 | return -EBADMSG; | |
515 | } | |
516 | ||
517 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
518 | } | |
519 | ||
520 | if (c) { | |
521 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
522 | log_warning("Failed to set CPU affinity: %m"); | |
523 | ||
524 | CPU_FREE(c); | |
525 | } | |
526 | ||
527 | return 0; | |
528 | } | |
529 | ||
0c85a4f3 LP |
530 | static void strv_free_free(char ***l) { |
531 | char ***i; | |
532 | ||
533 | if (!l) | |
534 | return; | |
535 | ||
536 | for (i = l; *i; i++) | |
537 | strv_free(*i); | |
538 | ||
539 | free(l); | |
540 | } | |
541 | ||
542 | static void free_join_controllers(void) { | |
543 | if (!arg_join_controllers) | |
544 | return; | |
545 | ||
546 | strv_free_free(arg_join_controllers); | |
547 | arg_join_controllers = NULL; | |
548 | } | |
549 | ||
550 | static int config_parse_join_controllers( | |
551 | const char *filename, | |
552 | unsigned line, | |
553 | const char *section, | |
554 | const char *lvalue, | |
555 | int ltype, | |
556 | const char *rvalue, | |
557 | void *data, | |
558 | void *userdata) { | |
559 | ||
560 | unsigned n = 0; | |
561 | char *state, *w; | |
562 | size_t length; | |
563 | ||
564 | assert(filename); | |
565 | assert(lvalue); | |
566 | assert(rvalue); | |
567 | ||
568 | free_join_controllers(); | |
569 | ||
570 | FOREACH_WORD_QUOTED(w, length, rvalue, state) { | |
571 | char *s, **l; | |
572 | ||
573 | s = strndup(w, length); | |
574 | if (!s) | |
575 | return -ENOMEM; | |
576 | ||
577 | l = strv_split(s, ","); | |
578 | free(s); | |
579 | ||
580 | strv_uniq(l); | |
581 | ||
582 | if (strv_length(l) <= 1) { | |
583 | strv_free(l); | |
584 | continue; | |
585 | } | |
586 | ||
587 | if (!arg_join_controllers) { | |
588 | arg_join_controllers = new(char**, 2); | |
589 | if (!arg_join_controllers) { | |
590 | strv_free(l); | |
591 | return -ENOMEM; | |
592 | } | |
593 | ||
594 | arg_join_controllers[0] = l; | |
595 | arg_join_controllers[1] = NULL; | |
596 | ||
597 | n = 1; | |
598 | } else { | |
599 | char ***a; | |
600 | char ***t; | |
601 | ||
602 | t = new0(char**, n+2); | |
603 | if (!t) { | |
604 | strv_free(l); | |
605 | return -ENOMEM; | |
606 | } | |
607 | ||
608 | n = 0; | |
609 | ||
610 | for (a = arg_join_controllers; *a; a++) { | |
611 | ||
612 | if (strv_overlap(*a, l)) { | |
613 | char **c; | |
614 | ||
615 | c = strv_merge(*a, l); | |
616 | if (!c) { | |
617 | strv_free(l); | |
618 | strv_free_free(t); | |
619 | return -ENOMEM; | |
620 | } | |
621 | ||
622 | strv_free(l); | |
623 | l = c; | |
624 | } else { | |
625 | char **c; | |
626 | ||
627 | c = strv_copy(*a); | |
628 | if (!c) { | |
629 | strv_free(l); | |
630 | strv_free_free(t); | |
631 | return -ENOMEM; | |
632 | } | |
633 | ||
634 | t[n++] = c; | |
635 | } | |
636 | } | |
637 | ||
638 | t[n++] = strv_uniq(l); | |
639 | ||
640 | strv_free_free(arg_join_controllers); | |
641 | arg_join_controllers = t; | |
642 | } | |
643 | } | |
644 | ||
645 | return 0; | |
646 | } | |
647 | ||
487393e9 LP |
648 | static int parse_config_file(void) { |
649 | ||
f975e971 LP |
650 | const ConfigTableItem items[] = { |
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 }, | |
656 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
657 | { "Manager", "ShowStatus", config_parse_bool, 0, &arg_show_status }, | |
07459bb6 | 658 | #ifdef HAVE_SYSV_COMPAT |
f975e971 | 659 | { "Manager", "SysVConsole", config_parse_bool, 0, &arg_sysv_console }, |
07459bb6 | 660 | #endif |
f975e971 LP |
661 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, |
662 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
f975e971 LP |
663 | { "Manager", "DefaultControllers", config_parse_strv, 0, &arg_default_controllers }, |
664 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, | |
665 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
0c85a4f3 | 666 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, |
e96d6be7 LP |
667 | { "Manager", "RuntimeWatchdogSec", config_parse_usec, 0, &arg_runtime_watchdog }, |
668 | { "Manager", "ShutdownWatchdogSec", config_parse_usec, 0, &arg_shutdown_watchdog }, | |
f975e971 | 669 | { NULL, NULL, NULL, 0, NULL } |
487393e9 LP |
670 | }; |
671 | ||
672 | FILE *f; | |
673 | const char *fn; | |
674 | int r; | |
675 | ||
af2d49f7 | 676 | fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE; |
f975e971 LP |
677 | f = fopen(fn, "re"); |
678 | if (!f) { | |
487393e9 LP |
679 | if (errno == ENOENT) |
680 | return 0; | |
681 | ||
682 | log_warning("Failed to open configuration file '%s': %m", fn); | |
683 | return 0; | |
684 | } | |
685 | ||
f975e971 LP |
686 | r = config_parse(fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL); |
687 | if (r < 0) | |
487393e9 LP |
688 | log_warning("Failed to parse configuration file: %s", strerror(-r)); |
689 | ||
690 | fclose(f); | |
691 | ||
692 | return 0; | |
693 | } | |
694 | ||
f170852a | 695 | static int parse_proc_cmdline(void) { |
52661efd | 696 | char *line, *w, *state; |
f170852a | 697 | int r; |
f170852a | 698 | size_t l; |
f170852a | 699 | |
b770165a LP |
700 | /* Don't read /proc/cmdline if we are in a container, since |
701 | * that is only relevant for the host system */ | |
702 | if (detect_container(NULL) > 0) | |
703 | return 0; | |
704 | ||
f170852a | 705 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { |
e364ad06 | 706 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
707 | return 0; |
708 | } | |
709 | ||
710 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
711 | char *word; | |
712 | ||
713 | if (!(word = strndup(w, l))) { | |
714 | r = -ENOMEM; | |
715 | goto finish; | |
716 | } | |
717 | ||
718 | r = parse_proc_cmdline_word(word); | |
719 | free(word); | |
720 | ||
721 | if (r < 0) | |
722 | goto finish; | |
723 | } | |
724 | ||
725 | r = 0; | |
726 | ||
727 | finish: | |
728 | free(line); | |
729 | return r; | |
730 | } | |
731 | ||
732 | static int parse_argv(int argc, char *argv[]) { | |
733 | ||
734 | enum { | |
735 | ARG_LOG_LEVEL = 0x100, | |
736 | ARG_LOG_TARGET, | |
bbe63281 LP |
737 | ARG_LOG_COLOR, |
738 | ARG_LOG_LOCATION, | |
2f198e2f | 739 | ARG_UNIT, |
edb9aaa8 | 740 | ARG_SYSTEM, |
af2d49f7 | 741 | ARG_USER, |
e537352b | 742 | ARG_TEST, |
80876c20 | 743 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
744 | ARG_DUMP_CORE, |
745 | ARG_CRASH_SHELL, | |
a16e1123 | 746 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 747 | ARG_SHOW_STATUS, |
6e98720f | 748 | ARG_SYSV_CONSOLE, |
4288f619 | 749 | ARG_DESERIALIZE, |
d03bc1b8 | 750 | ARG_SWITCHEDROOT, |
0a494f1f LP |
751 | ARG_INTROSPECT, |
752 | ARG_DEFAULT_STD_OUTPUT, | |
753 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
754 | }; |
755 | ||
756 | static const struct option options[] = { | |
a16e1123 LP |
757 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
758 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
759 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
760 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 761 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 762 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 763 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
764 | { "test", no_argument, NULL, ARG_TEST }, |
765 | { "help", no_argument, NULL, 'h' }, | |
766 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, | |
a5d87bf0 LP |
767 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
768 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
769 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 770 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
07459bb6 | 771 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 772 | { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE }, |
07459bb6 | 773 | #endif |
a16e1123 | 774 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
d03bc1b8 | 775 | { "switchedroot", no_argument, NULL, ARG_SWITCHEDROOT }, |
4288f619 | 776 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
0a494f1f LP |
777 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
778 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 779 | { NULL, 0, NULL, 0 } |
f170852a LP |
780 | }; |
781 | ||
782 | int c, r; | |
783 | ||
784 | assert(argc >= 1); | |
785 | assert(argv); | |
786 | ||
b770165a LP |
787 | if (getpid() == 1) |
788 | opterr = 0; | |
789 | ||
099663ff | 790 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
791 | |
792 | switch (c) { | |
793 | ||
794 | case ARG_LOG_LEVEL: | |
795 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
796 | log_error("Failed to parse log level %s.", optarg); | |
797 | return r; | |
798 | } | |
799 | ||
800 | break; | |
801 | ||
802 | case ARG_LOG_TARGET: | |
803 | ||
804 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
805 | log_error("Failed to parse log target %s.", optarg); | |
806 | return r; | |
807 | } | |
808 | ||
809 | break; | |
810 | ||
bbe63281 LP |
811 | case ARG_LOG_COLOR: |
812 | ||
d0b170c8 LP |
813 | if (optarg) { |
814 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
815 | log_error("Failed to parse log color setting %s.", optarg); | |
816 | return r; | |
817 | } | |
818 | } else | |
819 | log_show_color(true); | |
bbe63281 LP |
820 | |
821 | break; | |
822 | ||
823 | case ARG_LOG_LOCATION: | |
824 | ||
d0b170c8 LP |
825 | if (optarg) { |
826 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
827 | log_error("Failed to parse log location setting %s.", optarg); | |
828 | return r; | |
829 | } | |
830 | } else | |
831 | log_show_location(true); | |
bbe63281 LP |
832 | |
833 | break; | |
834 | ||
0a494f1f LP |
835 | case ARG_DEFAULT_STD_OUTPUT: |
836 | ||
837 | if ((r = exec_output_from_string(optarg)) < 0) { | |
838 | log_error("Failed to parse default standard output setting %s.", optarg); | |
839 | return r; | |
840 | } else | |
841 | arg_default_std_output = r; | |
842 | break; | |
843 | ||
844 | case ARG_DEFAULT_STD_ERROR: | |
845 | ||
846 | if ((r = exec_output_from_string(optarg)) < 0) { | |
847 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
848 | return r; | |
849 | } else | |
850 | arg_default_std_error = r; | |
851 | break; | |
852 | ||
2f198e2f | 853 | case ARG_UNIT: |
f170852a LP |
854 | |
855 | if ((r = set_default_unit(optarg)) < 0) { | |
856 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
857 | return r; | |
858 | } | |
859 | ||
860 | break; | |
861 | ||
edb9aaa8 LP |
862 | case ARG_SYSTEM: |
863 | arg_running_as = MANAGER_SYSTEM; | |
864 | break; | |
a5dab5ce | 865 | |
af2d49f7 LP |
866 | case ARG_USER: |
867 | arg_running_as = MANAGER_USER; | |
a5dab5ce | 868 | break; |
a5dab5ce | 869 | |
e965d56d | 870 | case ARG_TEST: |
fa0f4d8a | 871 | arg_action = ACTION_TEST; |
e965d56d LP |
872 | break; |
873 | ||
e537352b | 874 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 875 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
876 | break; |
877 | ||
9e58ff9c | 878 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
879 | r = optarg ? parse_boolean(optarg) : 1; |
880 | if (r < 0) { | |
881 | log_error("Failed to parse dump core boolean %s.", optarg); | |
882 | return r; | |
883 | } | |
884 | arg_dump_core = r; | |
9e58ff9c LP |
885 | break; |
886 | ||
887 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
888 | r = optarg ? parse_boolean(optarg) : 1; |
889 | if (r < 0) { | |
890 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
891 | return r; | |
892 | } | |
893 | arg_crash_shell = r; | |
9e58ff9c LP |
894 | break; |
895 | ||
80876c20 | 896 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
897 | r = optarg ? parse_boolean(optarg) : 1; |
898 | if (r < 0) { | |
899 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
900 | return r; | |
901 | } | |
902 | arg_confirm_spawn = r; | |
80876c20 LP |
903 | break; |
904 | ||
9e58ff9c | 905 | case ARG_SHOW_STATUS: |
a5d87bf0 LP |
906 | r = optarg ? parse_boolean(optarg) : 1; |
907 | if (r < 0) { | |
908 | log_error("Failed to parse show status boolean %s.", optarg); | |
909 | return r; | |
910 | } | |
911 | arg_show_status = r; | |
6e98720f | 912 | break; |
a5d87bf0 | 913 | |
07459bb6 | 914 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 915 | case ARG_SYSV_CONSOLE: |
a5d87bf0 LP |
916 | r = optarg ? parse_boolean(optarg) : 1; |
917 | if (r < 0) { | |
918 | log_error("Failed to parse SysV console boolean %s.", optarg); | |
919 | return r; | |
920 | } | |
921 | arg_sysv_console = r; | |
9e58ff9c | 922 | break; |
07459bb6 | 923 | #endif |
9e58ff9c | 924 | |
a16e1123 LP |
925 | case ARG_DESERIALIZE: { |
926 | int fd; | |
927 | FILE *f; | |
928 | ||
929 | if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) { | |
930 | log_error("Failed to parse deserialize option %s.", optarg); | |
931 | return r; | |
932 | } | |
933 | ||
934 | if (!(f = fdopen(fd, "r"))) { | |
935 | log_error("Failed to open serialization fd: %m"); | |
936 | return r; | |
937 | } | |
938 | ||
939 | if (serialization) | |
940 | fclose(serialization); | |
941 | ||
942 | serialization = f; | |
943 | ||
944 | break; | |
945 | } | |
946 | ||
d03bc1b8 HH |
947 | case ARG_SWITCHEDROOT: |
948 | /* Nothing special yet */ | |
949 | break; | |
950 | ||
4288f619 LP |
951 | case ARG_INTROSPECT: { |
952 | const char * const * i = NULL; | |
953 | ||
954 | for (i = bus_interface_table; *i; i += 2) | |
955 | if (!optarg || streq(i[0], optarg)) { | |
956 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
957 | "<node>\n", stdout); | |
958 | fputs(i[1], stdout); | |
959 | fputs("</node>\n", stdout); | |
960 | ||
961 | if (optarg) | |
962 | break; | |
963 | } | |
964 | ||
965 | if (!i[0] && optarg) | |
966 | log_error("Unknown interface %s.", optarg); | |
967 | ||
fa0f4d8a | 968 | arg_action = ACTION_DONE; |
4288f619 LP |
969 | break; |
970 | } | |
971 | ||
f170852a | 972 | case 'h': |
fa0f4d8a | 973 | arg_action = ACTION_HELP; |
f170852a LP |
974 | break; |
975 | ||
1d2e23ab LP |
976 | case 'D': |
977 | log_set_max_level(LOG_DEBUG); | |
978 | break; | |
979 | ||
099663ff LP |
980 | case 'b': |
981 | case 's': | |
982 | case 'z': | |
983 | /* Just to eat away the sysvinit kernel | |
984 | * cmdline args without getopt() error | |
985 | * messages that we'll parse in | |
986 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 987 | |
099663ff | 988 | case '?': |
f170852a | 989 | default: |
099663ff LP |
990 | if (getpid() != 1) { |
991 | log_error("Unknown option code %c", c); | |
992 | return -EINVAL; | |
993 | } | |
994 | ||
995 | break; | |
f170852a LP |
996 | } |
997 | ||
d821e6d6 LP |
998 | if (optind < argc && getpid() != 1) { |
999 | /* Hmm, when we aren't run as init system | |
1000 | * let's complain about excess arguments */ | |
1001 | ||
1002 | log_error("Excess arguments."); | |
1003 | return -EINVAL; | |
1004 | } | |
1005 | ||
1006 | if (detect_container(NULL) > 0) { | |
1007 | char **a; | |
1008 | ||
1009 | /* All /proc/cmdline arguments the kernel didn't | |
1010 | * understand it passed to us. We're not really | |
1011 | * interested in that usually since /proc/cmdline is | |
1012 | * more interesting and complete. With one exception: | |
1013 | * if we are run in a container /proc/cmdline is not | |
1014 | * relevant for the container, hence we rely on argv[] | |
1015 | * instead. */ | |
1016 | ||
1017 | for (a = argv; a < argv + argc; a++) | |
1018 | if ((r = parse_proc_cmdline_word(*a)) < 0) | |
1019 | return r; | |
51f0e189 LP |
1020 | } |
1021 | ||
f170852a LP |
1022 | return 0; |
1023 | } | |
1024 | ||
1025 | static int help(void) { | |
1026 | ||
2e33c433 | 1027 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1028 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1029 | " -h --help Show this help\n" |
e537352b | 1030 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 1031 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 1032 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 1033 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1034 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1035 | " --user Run a user instance\n" |
a5d87bf0 LP |
1036 | " --dump-core[=0|1] Dump core on crash\n" |
1037 | " --crash-shell[=0|1] Run shell on crash\n" | |
1038 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 1039 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
07459bb6 | 1040 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 1041 | " --sysv-console[=0|1] Connect output of SysV scripts to console\n" |
07459bb6 | 1042 | #endif |
4cfa2c99 | 1043 | " --log-target=TARGET Set log target (console, journal, syslog, kmsg, journal-or-kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 1044 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 1045 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
1046 | " --log-location[=0|1] Include code location in log messages\n" |
1047 | " --default-standard-output= Set default standard output for services\n" | |
1048 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1049 | program_invocation_short_name); |
f170852a LP |
1050 | |
1051 | return 0; | |
1052 | } | |
1053 | ||
a16e1123 LP |
1054 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) { |
1055 | FILE *f = NULL; | |
1056 | FDSet *fds = NULL; | |
1057 | int r; | |
1058 | ||
1059 | assert(m); | |
1060 | assert(_f); | |
1061 | assert(_fds); | |
1062 | ||
a7556052 LP |
1063 | /* Make sure nothing is really destructed when we shut down */ |
1064 | m->n_reloading ++; | |
1065 | ||
d8d5ab98 | 1066 | if ((r = manager_open_serialization(m, &f)) < 0) { |
35b8ca3a | 1067 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
1068 | goto fail; |
1069 | } | |
1070 | ||
1071 | if (!(fds = fdset_new())) { | |
1072 | r = -ENOMEM; | |
1073 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1074 | goto fail; | |
1075 | } | |
1076 | ||
1077 | if ((r = manager_serialize(m, f, fds)) < 0) { | |
1078 | log_error("Failed to serialize state: %s", strerror(-r)); | |
1079 | goto fail; | |
1080 | } | |
1081 | ||
1082 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
1083 | log_error("Failed to rewind serialization fd: %m"); | |
1084 | goto fail; | |
1085 | } | |
1086 | ||
1087 | if ((r = fd_cloexec(fileno(f), false)) < 0) { | |
1088 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); | |
1089 | goto fail; | |
1090 | } | |
1091 | ||
1092 | if ((r = fdset_cloexec(fds, false)) < 0) { | |
1093 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); | |
1094 | goto fail; | |
1095 | } | |
1096 | ||
1097 | *_f = f; | |
1098 | *_fds = fds; | |
1099 | ||
1100 | return 0; | |
1101 | ||
1102 | fail: | |
1103 | fdset_free(fds); | |
1104 | ||
1105 | if (f) | |
1106 | fclose(f); | |
1107 | ||
1108 | return r; | |
1109 | } | |
1110 | ||
e9ddabc2 LP |
1111 | static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { |
1112 | const char *e; | |
1113 | unsigned long long a, b; | |
1114 | ||
1115 | assert(t); | |
1116 | ||
966a5d37 LP |
1117 | e = getenv("RD_TIMESTAMP"); |
1118 | if (!e) | |
e9ddabc2 LP |
1119 | return NULL; |
1120 | ||
1121 | if (sscanf(e, "%llu %llu", &a, &b) != 2) | |
1122 | return NULL; | |
1123 | ||
1124 | t->realtime = (usec_t) a; | |
1125 | t->monotonic = (usec_t) b; | |
1126 | ||
1127 | return t; | |
1128 | } | |
1129 | ||
6ee5bbf8 LP |
1130 | static void test_mtab(void) { |
1131 | char *p; | |
1132 | ||
80758717 LP |
1133 | /* Check that /etc/mtab is a symlink */ |
1134 | ||
6ee5bbf8 LP |
1135 | if (readlink_malloc("/etc/mtab", &p) >= 0) { |
1136 | bool b; | |
1137 | ||
ed86ebc4 | 1138 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
1139 | free(p); |
1140 | ||
1141 | if (b) | |
1142 | return; | |
1143 | } | |
1144 | ||
80758717 LP |
1145 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1146 | "This is not supported anymore. " | |
1147 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1148 | } | |
1149 | ||
1150 | static void test_usr(void) { | |
80758717 | 1151 | |
ed1c99fc | 1152 | /* Check that /usr is not a separate fs */ |
80758717 | 1153 | |
871c44a7 LP |
1154 | if (dir_is_empty("/usr") <= 0) |
1155 | return; | |
1156 | ||
2376ce13 | 1157 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1158 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1159 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1160 | } | |
1161 | ||
1162 | static void test_cgroups(void) { | |
1163 | ||
1164 | if (access("/proc/cgroups", F_OK) >= 0) | |
1165 | return; | |
1166 | ||
1167 | log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " | |
1168 | "Systems without control groups are not supported. " | |
1169 | "We will now sleep for 10s, and then continue boot-up. " | |
1170 | "Expect breakage and please do not file bugs. " | |
966a5d37 LP |
1171 | "Instead fix your kernel and enable CONFIG_CGROUPS. " |
1172 | "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information."); | |
871c44a7 LP |
1173 | |
1174 | sleep(10); | |
6ee5bbf8 LP |
1175 | } |
1176 | ||
60918275 LP |
1177 | int main(int argc, char *argv[]) { |
1178 | Manager *m = NULL; | |
22f4096c | 1179 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1180 | usec_t before_startup, after_startup; |
1181 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1182 | FDSet *fds = NULL; |
1183 | bool reexecute = false; | |
b9080b03 | 1184 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1185 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
5d6b1584 | 1186 | static char systemd[] = "systemd"; |
0b3325e7 LP |
1187 | bool is_reexec = false; |
1188 | int j; | |
1189 | bool loaded_policy = false; | |
e96d6be7 | 1190 | bool arm_reboot_watchdog = false; |
41669317 | 1191 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
27b14a22 | 1192 | |
058dc6f3 | 1193 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1194 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1195 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1196 | * calling init as a user is identical to telinit. */ |
1197 | ||
1198 | errno = -ENOENT; | |
1199 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1200 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1201 | return 1; | |
1202 | } | |
058dc6f3 | 1203 | #endif |
2cb1a60d | 1204 | |
0b3325e7 LP |
1205 | /* Determine if this is a reexecution or normal bootup. We do |
1206 | * the full command line parsing much later, so let's just | |
1207 | * have a quick peek here. */ | |
1208 | ||
1209 | for (j = 1; j < argc; j++) | |
1210 | if (streq(argv[j], "--deserialize")) { | |
0b3325e7 | 1211 | is_reexec = true; |
7aaa27f2 | 1212 | break; |
0b3325e7 LP |
1213 | } |
1214 | ||
d03bc1b8 HH |
1215 | /* If we have switched root, do all the special things */ |
1216 | for (j = 1; j < argc; j++) | |
1217 | if (streq(argv[j], "--switchedroot")) { | |
1218 | is_reexec = false; | |
1219 | break; | |
1220 | } | |
1221 | ||
f3b6a3ed LP |
1222 | /* If we get started via the /sbin/init symlink then we are |
1223 | called 'init'. After a subsequent reexecution we are then | |
1224 | called 'systemd'. That is confusing, hence let's call us | |
1225 | systemd right-away. */ | |
f3b6a3ed LP |
1226 | program_invocation_short_name = systemd; |
1227 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1228 | |
9a0e6896 LP |
1229 | saved_argv = argv; |
1230 | saved_argc = argc; | |
f3b6a3ed | 1231 | |
2cc59dbf | 1232 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1233 | log_show_location(false); |
7c706717 | 1234 | log_set_max_level(LOG_INFO); |
bbe63281 | 1235 | |
843d2643 | 1236 | if (getpid() == 1) { |
c3ba6250 HH |
1237 | if (in_initrd()) { |
1238 | char *rd_timestamp = NULL; | |
1239 | ||
1240 | dual_timestamp_get(&initrd_timestamp); | |
1241 | asprintf(&rd_timestamp, "%llu %llu", | |
1242 | (unsigned long long) initrd_timestamp.realtime, | |
1243 | (unsigned long long) initrd_timestamp.monotonic); | |
1244 | if (rd_timestamp) { | |
1245 | setenv("RD_TIMESTAMP", rd_timestamp, 1); | |
1246 | free(rd_timestamp); | |
1247 | } | |
1248 | } | |
1249 | ||
fa0f4d8a | 1250 | arg_running_as = MANAGER_SYSTEM; |
a0a38448 | 1251 | log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_JOURNAL : LOG_TARGET_JOURNAL_OR_KMSG); |
0ff4cdd9 | 1252 | |
81611586 | 1253 | if (!is_reexec) { |
0b3325e7 LP |
1254 | if (selinux_setup(&loaded_policy) < 0) |
1255 | goto finish; | |
81611586 RS |
1256 | if (ima_setup() < 0) |
1257 | goto finish; | |
1258 | } | |
0b3325e7 LP |
1259 | |
1260 | log_open(); | |
c4dcdb9f | 1261 | |
e9a5ef7c | 1262 | if (label_init(NULL) < 0) |
0ff4cdd9 | 1263 | goto finish; |
7948c4df | 1264 | |
0b3325e7 LP |
1265 | if (!is_reexec) |
1266 | if (hwclock_is_localtime() > 0) { | |
1267 | int min; | |
7948c4df | 1268 | |
0b3325e7 LP |
1269 | r = hwclock_apply_localtime_delta(&min); |
1270 | if (r < 0) | |
1271 | log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); | |
1272 | else | |
1273 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
1274 | } | |
871e5809 | 1275 | |
bbe63281 | 1276 | } else { |
af2d49f7 | 1277 | arg_running_as = MANAGER_USER; |
eeecf6e6 | 1278 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1279 | log_open(); |
bbe63281 | 1280 | } |
a5dab5ce | 1281 | |
0c85a4f3 | 1282 | /* Initialize default unit */ |
f170852a LP |
1283 | if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) |
1284 | goto finish; | |
60918275 | 1285 | |
0c85a4f3 LP |
1286 | /* By default, mount "cpu" and "cpuacct" together */ |
1287 | arg_join_controllers = new(char**, 2); | |
1288 | if (!arg_join_controllers) | |
1289 | goto finish; | |
1290 | ||
1291 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
1292 | arg_join_controllers[1] = NULL; | |
1293 | ||
1294 | if (!arg_join_controllers[0]) | |
1295 | goto finish; | |
1296 | ||
f170852a LP |
1297 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1298 | * /proc/$PID/fd is available. */ | |
0c85a4f3 LP |
1299 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1300 | r = mount_setup(loaded_policy); | |
1301 | if (r < 0) | |
8efe3c01 | 1302 | goto finish; |
0c85a4f3 | 1303 | } |
4ade7963 LP |
1304 | |
1305 | /* Reset all signal handlers. */ | |
1306 | assert_se(reset_all_signal_handlers() == 0); | |
1307 | ||
078e4539 | 1308 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 1309 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1310 | |
487393e9 LP |
1311 | if (parse_config_file() < 0) |
1312 | goto finish; | |
1313 | ||
fa0f4d8a | 1314 | if (arg_running_as == MANAGER_SYSTEM) |
a5dab5ce LP |
1315 | if (parse_proc_cmdline() < 0) |
1316 | goto finish; | |
f170852a LP |
1317 | |
1318 | log_parse_environment(); | |
1319 | ||
1320 | if (parse_argv(argc, argv) < 0) | |
1321 | goto finish; | |
1322 | ||
b5c6cf87 LP |
1323 | if (arg_action == ACTION_TEST && geteuid() == 0) { |
1324 | log_error("Don't run test mode as root."); | |
1325 | goto finish; | |
1326 | } | |
1327 | ||
fe783b03 LP |
1328 | if (arg_running_as == MANAGER_SYSTEM && |
1329 | arg_action == ACTION_RUN && | |
1330 | running_in_chroot() > 0) { | |
1331 | log_error("Cannot be run in a chroot() environment."); | |
1332 | goto finish; | |
1333 | } | |
1334 | ||
fa0f4d8a | 1335 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1336 | retval = help(); |
1337 | goto finish; | |
fa0f4d8a | 1338 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1339 | unit_dump_config_items(stdout); |
22f4096c | 1340 | retval = EXIT_SUCCESS; |
e537352b | 1341 | goto finish; |
fa0f4d8a | 1342 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1343 | retval = EXIT_SUCCESS; |
4288f619 | 1344 | goto finish; |
f170852a LP |
1345 | } |
1346 | ||
fa0f4d8a | 1347 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1348 | |
871e5809 LP |
1349 | /* Close logging fds, in order not to confuse fdset below */ |
1350 | log_close(); | |
1351 | ||
a16e1123 LP |
1352 | /* Remember open file descriptors for later deserialization */ |
1353 | if (serialization) { | |
966a5d37 LP |
1354 | r = fdset_new_fill(&fds); |
1355 | if (r < 0) { | |
a16e1123 LP |
1356 | log_error("Failed to allocate fd set: %s", strerror(-r)); |
1357 | goto finish; | |
1358 | } | |
1359 | ||
1360 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); | |
1361 | } else | |
1362 | close_all_fds(NULL, 0); | |
1363 | ||
09082a94 | 1364 | /* Set up PATH unless it is already set */ |
e537352b | 1365 | setenv("PATH", |
2c6db6fb | 1366 | #ifdef HAVE_SPLIT_USR |
e537352b | 1367 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", |
2c6db6fb LP |
1368 | #else |
1369 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin", | |
1370 | #endif | |
fa0f4d8a | 1371 | arg_running_as == MANAGER_SYSTEM); |
09082a94 | 1372 | |
39439087 | 1373 | if (arg_running_as == MANAGER_SYSTEM) { |
71ecc858 LP |
1374 | /* Parse the data passed to us. We leave this |
1375 | * variables set, but the manager later on will not | |
1376 | * pass them on to our children. */ | |
c3ba6250 HH |
1377 | if(!in_initrd()) |
1378 | parse_initrd_timestamp(&initrd_timestamp); | |
e9ddabc2 LP |
1379 | |
1380 | /* Unset some environment variables passed in from the | |
1381 | * kernel that don't really make sense for us. */ | |
39439087 LP |
1382 | unsetenv("HOME"); |
1383 | unsetenv("TERM"); | |
b770165a | 1384 | |
9543ad16 LP |
1385 | /* When we are invoked by a shell, these might be set, |
1386 | * but make little sense to pass on */ | |
1387 | unsetenv("PWD"); | |
1388 | unsetenv("SHLVL"); | |
1389 | unsetenv("_"); | |
1390 | ||
9f28b98e LP |
1391 | /* When we are invoked by a tool chroot-like such as |
1392 | * nspawn, these might be set, but make little sense | |
1393 | * to pass on */ | |
1394 | unsetenv("USER"); | |
1395 | unsetenv("LOGNAME"); | |
1396 | ||
b770165a LP |
1397 | /* All other variables are left as is, so that clients |
1398 | * can still read them via /proc/1/environ */ | |
39439087 | 1399 | } |
1104f3c1 | 1400 | |
f170852a LP |
1401 | /* Move out of the way, so that we won't block unmounts */ |
1402 | assert_se(chdir("/") == 0); | |
1403 | ||
fa0f4d8a | 1404 | if (arg_running_as == MANAGER_SYSTEM) { |
80876c20 LP |
1405 | /* Become a session leader if we aren't one yet. */ |
1406 | setsid(); | |
4ade7963 | 1407 | |
80876c20 LP |
1408 | /* Disable the umask logic */ |
1409 | umask(0); | |
1410 | } | |
1411 | ||
843d2643 LP |
1412 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
1413 | dbus_connection_set_change_sigpipe(FALSE); | |
1414 | ||
2146621b LP |
1415 | /* Reset the console, but only if this is really init and we |
1416 | * are freshly booted */ | |
fa0f4d8a | 1417 | if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { |
0b3325e7 | 1418 | console_setup(getpid() == 1 && !is_reexec); |
843d2643 LP |
1419 | make_null_stdio(); |
1420 | } | |
4ade7963 | 1421 | |
18149b9f | 1422 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1423 | log_open(); |
4ade7963 | 1424 | |
5373d602 LP |
1425 | /* Make sure we leave a core dump without panicing the |
1426 | * kernel. */ | |
4fc935ca LP |
1427 | if (getpid() == 1) |
1428 | install_crash_handler(); | |
97c4f35c | 1429 | |
0c85a4f3 LP |
1430 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1431 | r = mount_cgroup_controllers(arg_join_controllers); | |
1432 | if (r < 0) | |
1433 | goto finish; | |
1434 | } | |
1435 | ||
302e27c8 | 1436 | log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, |
7d568925 | 1437 | PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as)); |
a5dab5ce | 1438 | |
0b3325e7 | 1439 | if (arg_running_as == MANAGER_SYSTEM && !is_reexec) { |
72bca11b LP |
1440 | locale_setup(); |
1441 | ||
6faa1114 | 1442 | if (arg_show_status || plymouth_running()) |
888c6216 LP |
1443 | status_welcome(); |
1444 | ||
888c6216 LP |
1445 | kmod_setup(); |
1446 | hostname_setup(); | |
d7ccca2e | 1447 | machine_id_setup(); |
888c6216 | 1448 | loopback_setup(); |
490aed58 | 1449 | |
6ee5bbf8 | 1450 | test_mtab(); |
80758717 | 1451 | test_usr(); |
871c44a7 | 1452 | test_cgroups(); |
af5bc85d | 1453 | } |
302e8c4c | 1454 | |
e96d6be7 LP |
1455 | if (arg_running_as == MANAGER_SYSTEM && arg_runtime_watchdog > 0) |
1456 | watchdog_set_timeout(&arg_runtime_watchdog); | |
1457 | ||
1458 | r = manager_new(arg_running_as, &m); | |
1459 | if (r < 0) { | |
8e274523 | 1460 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1461 | goto finish; |
1462 | } | |
1463 | ||
9e58ff9c | 1464 | m->confirm_spawn = arg_confirm_spawn; |
07459bb6 | 1465 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 1466 | m->sysv_console = arg_sysv_console; |
07459bb6 | 1467 | #endif |
0a494f1f LP |
1468 | m->default_std_output = arg_default_std_output; |
1469 | m->default_std_error = arg_default_std_error; | |
e96d6be7 LP |
1470 | m->runtime_watchdog = arg_runtime_watchdog; |
1471 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
9e58ff9c | 1472 | |
e9ddabc2 LP |
1473 | if (dual_timestamp_is_set(&initrd_timestamp)) |
1474 | m->initrd_timestamp = initrd_timestamp; | |
1475 | ||
06d4c99a LP |
1476 | if (arg_default_controllers) |
1477 | manager_set_default_controllers(m, arg_default_controllers); | |
1478 | ||
27d340c7 LP |
1479 | manager_set_show_status(m, arg_show_status); |
1480 | ||
9d76d730 LP |
1481 | before_startup = now(CLOCK_MONOTONIC); |
1482 | ||
e96d6be7 LP |
1483 | r = manager_startup(m, serialization, fds); |
1484 | if (r < 0) | |
6e2ef85b | 1485 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 LP |
1486 | |
1487 | if (fds) { | |
1488 | /* This will close all file descriptors that were opened, but | |
1489 | * not claimed by any unit. */ | |
1490 | ||
1491 | fdset_free(fds); | |
1492 | fds = NULL; | |
f50e0a01 LP |
1493 | } |
1494 | ||
a16e1123 LP |
1495 | if (serialization) { |
1496 | fclose(serialization); | |
1497 | serialization = NULL; | |
1498 | } else { | |
398ef8ba | 1499 | DBusError error; |
1c27d3f3 | 1500 | Unit *target = NULL; |
bacbccb7 | 1501 | Job *default_unit_job; |
398ef8ba LP |
1502 | |
1503 | dbus_error_init(&error); | |
1504 | ||
fa0f4d8a | 1505 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1506 | |
e96d6be7 LP |
1507 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
1508 | if (r < 0) { | |
398ef8ba LP |
1509 | log_error("Failed to load default target: %s", bus_error(&error, r)); |
1510 | dbus_error_free(&error); | |
ac155bb8 MS |
1511 | } else if (target->load_state == UNIT_ERROR) |
1512 | log_error("Failed to load default target: %s", strerror(-target->load_error)); | |
1513 | else if (target->load_state == UNIT_MASKED) | |
6daf4f90 | 1514 | log_error("Default target masked."); |
27b14a22 | 1515 | |
ac155bb8 | 1516 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1517 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1518 | |
e96d6be7 LP |
1519 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1520 | if (r < 0) { | |
398ef8ba LP |
1521 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); |
1522 | dbus_error_free(&error); | |
a16e1123 | 1523 | goto finish; |
ac155bb8 MS |
1524 | } else if (target->load_state == UNIT_ERROR) { |
1525 | log_error("Failed to load rescue target: %s", strerror(-target->load_error)); | |
1c27d3f3 | 1526 | goto finish; |
ac155bb8 | 1527 | } else if (target->load_state == UNIT_MASKED) { |
6daf4f90 | 1528 | log_error("Rescue target masked."); |
00dc5d76 | 1529 | goto finish; |
a16e1123 LP |
1530 | } |
1531 | } | |
37d88da7 | 1532 | |
ac155bb8 | 1533 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1534 | |
fa0f4d8a | 1535 | if (arg_action == ACTION_TEST) { |
40d50879 | 1536 | printf("-> By units:\n"); |
a16e1123 LP |
1537 | manager_dump_units(m, stdout, "\t"); |
1538 | } | |
1539 | ||
bacbccb7 MS |
1540 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); |
1541 | if (r < 0) { | |
398ef8ba LP |
1542 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1543 | dbus_error_free(&error); | |
37d88da7 LP |
1544 | goto finish; |
1545 | } | |
bacbccb7 | 1546 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1547 | |
07672f49 LP |
1548 | after_startup = now(CLOCK_MONOTONIC); |
1549 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1550 | "Loaded units and determined initial transaction in %s.", | |
1551 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup)); | |
1552 | ||
fa0f4d8a | 1553 | if (arg_action == ACTION_TEST) { |
40d50879 | 1554 | printf("-> By jobs:\n"); |
a16e1123 | 1555 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1556 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1557 | goto finish; |
1558 | } | |
e965d56d | 1559 | } |
d46de8a1 | 1560 | |
a16e1123 | 1561 | for (;;) { |
e96d6be7 LP |
1562 | r = manager_loop(m); |
1563 | if (r < 0) { | |
a16e1123 LP |
1564 | log_error("Failed to run mainloop: %s", strerror(-r)); |
1565 | goto finish; | |
1566 | } | |
11dd41ce | 1567 | |
a16e1123 | 1568 | switch (m->exit_code) { |
e965d56d | 1569 | |
a16e1123 | 1570 | case MANAGER_EXIT: |
22f4096c | 1571 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1572 | log_debug("Exit."); |
1573 | goto finish; | |
e965d56d | 1574 | |
a16e1123 | 1575 | case MANAGER_RELOAD: |
e015090f | 1576 | log_info("Reloading."); |
e96d6be7 LP |
1577 | r = manager_reload(m); |
1578 | if (r < 0) | |
a16e1123 LP |
1579 | log_error("Failed to reload: %s", strerror(-r)); |
1580 | break; | |
cea8e32e | 1581 | |
a16e1123 | 1582 | case MANAGER_REEXECUTE: |
664f88a7 | 1583 | |
a16e1123 LP |
1584 | if (prepare_reexecute(m, &serialization, &fds) < 0) |
1585 | goto finish; | |
60918275 | 1586 | |
a16e1123 | 1587 | reexecute = true; |
e015090f | 1588 | log_notice("Reexecuting."); |
a16e1123 LP |
1589 | goto finish; |
1590 | ||
664f88a7 LP |
1591 | case MANAGER_SWITCH_ROOT: |
1592 | /* Steal the switch root parameters */ | |
41669317 | 1593 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1594 | switch_root_init = m->switch_root_init; |
1595 | m->switch_root = m->switch_root_init = NULL; | |
1596 | ||
1597 | if (!switch_root_init) | |
1598 | if (prepare_reexecute(m, &serialization, &fds) < 0) | |
1599 | goto finish; | |
1600 | ||
1601 | reexecute = true; | |
1602 | log_notice("Switching root."); | |
1603 | goto finish; | |
1604 | ||
b9080b03 FF |
1605 | case MANAGER_REBOOT: |
1606 | case MANAGER_POWEROFF: | |
1607 | case MANAGER_HALT: | |
1608 | case MANAGER_KEXEC: { | |
1609 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1610 | [MANAGER_REBOOT] = "reboot", | |
1611 | [MANAGER_POWEROFF] = "poweroff", | |
1612 | [MANAGER_HALT] = "halt", | |
1613 | [MANAGER_KEXEC] = "kexec" | |
1614 | }; | |
1615 | ||
1616 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1617 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1618 | |
1619 | log_notice("Shutting down."); | |
1620 | goto finish; | |
1621 | } | |
1622 | ||
a16e1123 LP |
1623 | default: |
1624 | assert_not_reached("Unknown exit code."); | |
1625 | } | |
1626 | } | |
f170852a | 1627 | |
60918275 LP |
1628 | finish: |
1629 | if (m) | |
1630 | manager_free(m); | |
1631 | ||
fa0f4d8a | 1632 | free(arg_default_unit); |
06d4c99a | 1633 | strv_free(arg_default_controllers); |
0c85a4f3 | 1634 | free_join_controllers(); |
b9cd2ec1 | 1635 | |
ea430986 | 1636 | dbus_shutdown(); |
b2bb3dbe LP |
1637 | label_finish(); |
1638 | ||
a16e1123 | 1639 | if (reexecute) { |
664f88a7 | 1640 | const char **args; |
e564a982 | 1641 | unsigned i, args_size; |
a16e1123 | 1642 | |
664f88a7 LP |
1643 | /* Close and disarm the watchdog, so that the new |
1644 | * instance can reinitialize it, but doesn't get | |
1645 | * rebooted while we do that */ | |
1646 | watchdog_close(true); | |
a16e1123 | 1647 | |
41669317 LP |
1648 | if (switch_root_dir) { |
1649 | r = switch_root(switch_root_dir); | |
1650 | if (r < 0) | |
1651 | log_error("Failed to switch root, ignoring: %s", strerror(-r)); | |
1652 | } | |
a16e1123 | 1653 | |
d03bc1b8 | 1654 | args_size = MAX(6, argc+1); |
e564a982 | 1655 | args = newa(const char*, args_size); |
a16e1123 | 1656 | |
664f88a7 LP |
1657 | if (!switch_root_init) { |
1658 | char sfd[16]; | |
a16e1123 | 1659 | |
664f88a7 LP |
1660 | /* First try to spawn ourselves with the right |
1661 | * path, and with full serialization. We do | |
1662 | * this only if the user didn't specify an | |
1663 | * explicit init to spawn. */ | |
edb9aaa8 | 1664 | |
664f88a7 LP |
1665 | assert(serialization); |
1666 | assert(fds); | |
edb9aaa8 | 1667 | |
664f88a7 LP |
1668 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); |
1669 | char_array_0(sfd); | |
edb9aaa8 | 1670 | |
664f88a7 LP |
1671 | i = 0; |
1672 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1673 | if (switch_root_dir) |
d03bc1b8 | 1674 | args[i++] = "--switchedroot"; |
664f88a7 LP |
1675 | args[i++] = arg_running_as == MANAGER_SYSTEM ? "--system" : "--user"; |
1676 | args[i++] = "--deserialize"; | |
1677 | args[i++] = sfd; | |
1678 | args[i++] = NULL; | |
edb9aaa8 | 1679 | |
e564a982 | 1680 | assert(i <= args_size); |
664f88a7 LP |
1681 | execv(args[0], (char* const*) args); |
1682 | } | |
6e98720f | 1683 | |
664f88a7 LP |
1684 | /* Try the fallback, if there is any, without any |
1685 | * serialization. We pass the original argv[] and | |
1686 | * envp[]. (Well, modulo the ordering changes due to | |
1687 | * getopt() in argv[], and some cleanups in envp[], | |
1688 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1689 | |
b8f83232 | 1690 | if (serialization) { |
664f88a7 | 1691 | fclose(serialization); |
b8f83232 LP |
1692 | serialization = NULL; |
1693 | } | |
a16e1123 | 1694 | |
b8f83232 | 1695 | if (fds) { |
664f88a7 | 1696 | fdset_free(fds); |
b8f83232 LP |
1697 | fds = NULL; |
1698 | } | |
a16e1123 | 1699 | |
b8f83232 | 1700 | for (j = 1, i = 1; j < argc; j++) |
664f88a7 | 1701 | args[i++] = argv[j]; |
a16e1123 | 1702 | args[i++] = NULL; |
e564a982 | 1703 | assert(i <= args_size); |
b8f83232 LP |
1704 | |
1705 | if (switch_root_init) { | |
1706 | args[0] = switch_root_init; | |
1707 | execv(args[0], (char* const*) args); | |
1708 | log_warning("Failed to execute configured init, trying fallback: %m"); | |
1709 | } | |
1710 | ||
1711 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1712 | execv(args[0], (char* const*) args); |
1713 | ||
b8f83232 LP |
1714 | log_warning("Failed to execute /sbin/init, trying fallback: %m"); |
1715 | ||
1716 | args[0] = "/bin/sh"; | |
1717 | args[1] = NULL; | |
1718 | execv(args[0], (char* const*) args); | |
1719 | log_error("Failed to execute /bin/sh, giving up: %m"); | |
a16e1123 LP |
1720 | } |
1721 | ||
1722 | if (serialization) | |
1723 | fclose(serialization); | |
1724 | ||
1725 | if (fds) | |
1726 | fdset_free(fds); | |
1727 | ||
b9080b03 FF |
1728 | if (shutdown_verb) { |
1729 | const char * command_line[] = { | |
1730 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1731 | shutdown_verb, | |
1732 | NULL | |
1733 | }; | |
d18f337c | 1734 | char **env_block; |
b9080b03 | 1735 | |
e96d6be7 | 1736 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
d18f337c LP |
1737 | char e[32]; |
1738 | ||
e96d6be7 LP |
1739 | /* If we reboot let's set the shutdown |
1740 | * watchdog and tell the shutdown binary to | |
1741 | * repeatedly ping it */ | |
1742 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
1743 | watchdog_close(false); | |
1744 | ||
1745 | /* Tell the binary how often to ping */ | |
1746 | snprintf(e, sizeof(e), "WATCHDOG_USEC=%llu", (unsigned long long) arg_shutdown_watchdog); | |
1747 | char_array_0(e); | |
d18f337c LP |
1748 | |
1749 | env_block = strv_append(environ, e); | |
1750 | } else { | |
1751 | env_block = strv_copy(environ); | |
e96d6be7 | 1752 | watchdog_close(true); |
d18f337c | 1753 | } |
e96d6be7 | 1754 | |
d18f337c LP |
1755 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
1756 | free(env_block); | |
b9080b03 FF |
1757 | log_error("Failed to execute shutdown binary, freezing: %m"); |
1758 | } | |
1759 | ||
c3b3c274 LP |
1760 | if (getpid() == 1) |
1761 | freeze(); | |
1762 | ||
60918275 LP |
1763 | return retval; |
1764 | } |