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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" |
ec8927ca | 53 | #include "capability.h" |
bd3fa1d2 | 54 | #include "killall.h" |
0c4025d1 LP |
55 | #include "env-util.h" |
56 | #include "hwclock.h" | |
57 | #include "sd-daemon.h" | |
60918275 | 58 | |
b6e66135 LP |
59 | #include "mount-setup.h" |
60 | #include "loopback-setup.h" | |
e3043162 | 61 | #ifdef HAVE_KMOD |
b6e66135 | 62 | #include "kmod-setup.h" |
e3043162 | 63 | #endif |
b6e66135 LP |
64 | #include "hostname-setup.h" |
65 | #include "machine-id-setup.h" | |
66 | #include "locale-setup.h" | |
67 | #include "selinux-setup.h" | |
68 | #include "ima-setup.h" | |
a5c32cff | 69 | #include "fileio.h" |
ffbd2c4d | 70 | #include "smack-setup.h" |
b6e66135 | 71 | |
f170852a LP |
72 | static enum { |
73 | ACTION_RUN, | |
e965d56d | 74 | ACTION_HELP, |
9ba0bc4e | 75 | ACTION_VERSION, |
e537352b | 76 | ACTION_TEST, |
4288f619 LP |
77 | ACTION_DUMP_CONFIGURATION_ITEMS, |
78 | ACTION_DONE | |
fa0f4d8a | 79 | } arg_action = ACTION_RUN; |
f170852a | 80 | |
fa0f4d8a | 81 | static char *arg_default_unit = NULL; |
67445f4e | 82 | static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; |
fa0f4d8a LP |
83 | |
84 | static bool arg_dump_core = true; | |
85 | static bool arg_crash_shell = false; | |
86 | static int arg_crash_chvt = -1; | |
87 | static bool arg_confirm_spawn = false; | |
9e58ff9c | 88 | static bool arg_show_status = true; |
bf4df7c3 | 89 | static bool arg_switched_root = false; |
06d4c99a | 90 | static char **arg_default_controllers = NULL; |
0c85a4f3 | 91 | static char ***arg_join_controllers = NULL; |
706343f4 | 92 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 93 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
e96d6be7 LP |
94 | static usec_t arg_runtime_watchdog = 0; |
95 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
c93ff2e9 | 96 | static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {}; |
ec8927ca | 97 | static uint64_t arg_capability_bounding_set_drop = 0; |
aa0f64ac | 98 | static nsec_t arg_timer_slack_nsec = (nsec_t) -1; |
4fc935ca | 99 | |
a16e1123 | 100 | static FILE* serialization = NULL; |
80876c20 | 101 | |
6f5e3f35 LP |
102 | static void nop_handler(int sig) { |
103 | } | |
104 | ||
93a46b0b | 105 | _noreturn_ static void crash(int sig) { |
97c4f35c | 106 | |
fa0f4d8a | 107 | if (!arg_dump_core) |
582a507f | 108 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 109 | else { |
6f5e3f35 | 110 | struct sigaction sa; |
97c4f35c LP |
111 | pid_t pid; |
112 | ||
6f5e3f35 LP |
113 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
114 | zero(sa); | |
115 | sa.sa_handler = nop_handler; | |
116 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
117 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
118 | ||
97c4f35c | 119 | if ((pid = fork()) < 0) |
582a507f | 120 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
121 | |
122 | else if (pid == 0) { | |
97c4f35c LP |
123 | struct rlimit rl; |
124 | ||
125 | /* Enable default signal handler for core dump */ | |
126 | zero(sa); | |
127 | sa.sa_handler = SIG_DFL; | |
128 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
129 | ||
130 | /* Don't limit the core dump size */ | |
131 | zero(rl); | |
132 | rl.rlim_cur = RLIM_INFINITY; | |
133 | rl.rlim_max = RLIM_INFINITY; | |
134 | setrlimit(RLIMIT_CORE, &rl); | |
135 | ||
136 | /* Just to be sure... */ | |
137 | assert_se(chdir("/") == 0); | |
138 | ||
139 | /* Raise the signal again */ | |
140 | raise(sig); | |
141 | ||
142 | assert_not_reached("We shouldn't be here..."); | |
143 | _exit(1); | |
4fc935ca LP |
144 | |
145 | } else { | |
8e12a6ae LP |
146 | siginfo_t status; |
147 | int r; | |
4fc935ca LP |
148 | |
149 | /* Order things nicely. */ | |
8e12a6ae LP |
150 | if ((r = wait_for_terminate(pid, &status)) < 0) |
151 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); | |
152 | else if (status.si_code != CLD_DUMPED) | |
582a507f | 153 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 154 | else |
582a507f | 155 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
156 | } |
157 | } | |
158 | ||
fa0f4d8a LP |
159 | if (arg_crash_chvt) |
160 | chvt(arg_crash_chvt); | |
601f6a1e | 161 | |
fa0f4d8a | 162 | if (arg_crash_shell) { |
6f5e3f35 LP |
163 | struct sigaction sa; |
164 | pid_t pid; | |
8c43883a | 165 | |
4fc935ca LP |
166 | log_info("Executing crash shell in 10s..."); |
167 | sleep(10); | |
168 | ||
6f5e3f35 LP |
169 | /* Let the kernel reap children for us */ |
170 | zero(sa); | |
171 | sa.sa_handler = SIG_IGN; | |
172 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
173 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 174 | |
cd3bd60a LP |
175 | pid = fork(); |
176 | if (pid < 0) | |
14212119 | 177 | log_error("Failed to fork off crash shell: %m"); |
6f5e3f35 | 178 | else if (pid == 0) { |
cd3bd60a | 179 | make_console_stdio(); |
6f5e3f35 LP |
180 | execl("/bin/sh", "/bin/sh", NULL); |
181 | ||
14212119 | 182 | log_error("execl() failed: %m"); |
6f5e3f35 LP |
183 | _exit(1); |
184 | } | |
c99b188e | 185 | |
f8e08a77 | 186 | log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
187 | } |
188 | ||
189 | log_info("Freezing execution."); | |
97c4f35c LP |
190 | freeze(); |
191 | } | |
192 | ||
193 | static void install_crash_handler(void) { | |
194 | struct sigaction sa; | |
195 | ||
196 | zero(sa); | |
197 | ||
198 | sa.sa_handler = crash; | |
199 | sa.sa_flags = SA_NODEFER; | |
200 | ||
1b91d3e8 | 201 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 202 | } |
f170852a | 203 | |
843d2643 LP |
204 | static int console_setup(bool do_reset) { |
205 | int tty_fd, r; | |
80876c20 | 206 | |
843d2643 LP |
207 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
208 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 209 | |
843d2643 LP |
210 | release_terminal(); |
211 | ||
212 | if (!do_reset) | |
213 | return 0; | |
80876c20 | 214 | |
512947d4 MS |
215 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
216 | if (tty_fd < 0) { | |
843d2643 LP |
217 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); |
218 | return -tty_fd; | |
219 | } | |
80876c20 | 220 | |
512947d4 MS |
221 | /* We don't want to force text mode. |
222 | * plymouth may be showing pictures already from initrd. */ | |
223 | r = reset_terminal_fd(tty_fd, false); | |
224 | if (r < 0) | |
843d2643 LP |
225 | log_error("Failed to reset /dev/console: %s", strerror(-r)); |
226 | ||
227 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
228 | return r; |
229 | } | |
230 | ||
f170852a LP |
231 | static int set_default_unit(const char *u) { |
232 | char *c; | |
233 | ||
234 | assert(u); | |
235 | ||
bf4df7c3 LP |
236 | c = strdup(u); |
237 | if (!c) | |
f170852a LP |
238 | return -ENOMEM; |
239 | ||
fa0f4d8a LP |
240 | free(arg_default_unit); |
241 | arg_default_unit = c; | |
bf4df7c3 | 242 | |
f170852a LP |
243 | return 0; |
244 | } | |
245 | ||
246 | static int parse_proc_cmdline_word(const char *word) { | |
247 | ||
248 | static const char * const rlmap[] = { | |
ed370f5d | 249 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 250 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
251 | "single", SPECIAL_RESCUE_TARGET, |
252 | "-s", SPECIAL_RESCUE_TARGET, | |
253 | "s", SPECIAL_RESCUE_TARGET, | |
254 | "S", SPECIAL_RESCUE_TARGET, | |
255 | "1", SPECIAL_RESCUE_TARGET, | |
256 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
257 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
258 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
259 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
260 | }; |
261 | ||
5192bd19 LP |
262 | assert(word); |
263 | ||
bf4df7c3 LP |
264 | if (startswith(word, "systemd.unit=")) { |
265 | ||
266 | if (!in_initrd()) | |
267 | return set_default_unit(word + 13); | |
268 | ||
269 | } else if (startswith(word, "rd.systemd.unit=")) { | |
270 | ||
271 | if (in_initrd()) | |
272 | return set_default_unit(word + 16); | |
f170852a | 273 | |
bf4df7c3 | 274 | } else if (startswith(word, "systemd.log_target=")) { |
f170852a LP |
275 | |
276 | if (log_set_target_from_string(word + 19) < 0) | |
277 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
278 | ||
279 | } else if (startswith(word, "systemd.log_level=")) { | |
280 | ||
281 | if (log_set_max_level_from_string(word + 18) < 0) | |
282 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
283 | ||
bbe63281 LP |
284 | } else if (startswith(word, "systemd.log_color=")) { |
285 | ||
286 | if (log_show_color_from_string(word + 18) < 0) | |
287 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
288 | ||
289 | } else if (startswith(word, "systemd.log_location=")) { | |
290 | ||
291 | if (log_show_location_from_string(word + 21) < 0) | |
292 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
293 | ||
4fc935ca LP |
294 | } else if (startswith(word, "systemd.dump_core=")) { |
295 | int r; | |
296 | ||
297 | if ((r = parse_boolean(word + 18)) < 0) | |
509b6efb | 298 | log_warning("Failed to parse dump core switch %s. Ignoring.", word + 18); |
4fc935ca | 299 | else |
fa0f4d8a | 300 | arg_dump_core = r; |
4fc935ca LP |
301 | |
302 | } else if (startswith(word, "systemd.crash_shell=")) { | |
303 | int r; | |
304 | ||
305 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 306 | log_warning("Failed to parse crash shell switch %s. Ignoring.", word + 20); |
4fc935ca | 307 | else |
fa0f4d8a | 308 | arg_crash_shell = r; |
5e7ee61c LP |
309 | |
310 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
311 | int r; | |
312 | ||
313 | if ((r = parse_boolean(word + 22)) < 0) | |
509b6efb | 314 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", word + 22); |
5e7ee61c | 315 | else |
fa0f4d8a | 316 | arg_confirm_spawn = r; |
5e7ee61c | 317 | |
601f6a1e LP |
318 | } else if (startswith(word, "systemd.crash_chvt=")) { |
319 | int k; | |
320 | ||
321 | if (safe_atoi(word + 19, &k) < 0) | |
509b6efb | 322 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", word + 19); |
601f6a1e | 323 | else |
fa0f4d8a | 324 | arg_crash_chvt = k; |
601f6a1e | 325 | |
9e58ff9c LP |
326 | } else if (startswith(word, "systemd.show_status=")) { |
327 | int r; | |
328 | ||
329 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 330 | log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); |
6e98720f | 331 | else |
9e58ff9c | 332 | arg_show_status = r; |
0a494f1f LP |
333 | } else if (startswith(word, "systemd.default_standard_output=")) { |
334 | int r; | |
335 | ||
336 | if ((r = exec_output_from_string(word + 32)) < 0) | |
509b6efb | 337 | log_warning("Failed to parse default standard output switch %s. Ignoring.", word + 32); |
0a494f1f LP |
338 | else |
339 | arg_default_std_output = r; | |
340 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
341 | int r; | |
342 | ||
343 | if ((r = exec_output_from_string(word + 31)) < 0) | |
509b6efb | 344 | log_warning("Failed to parse default standard error switch %s. Ignoring.", word + 31); |
0a494f1f LP |
345 | else |
346 | arg_default_std_error = r; | |
9e7c5357 | 347 | } else if (startswith(word, "systemd.setenv=")) { |
0c4025d1 LP |
348 | _cleanup_free_ char *cenv = NULL; |
349 | char *eq; | |
9e7c5357 WD |
350 | int r; |
351 | ||
352 | cenv = strdup(word + 15); | |
353 | if (!cenv) | |
354 | return -ENOMEM; | |
355 | ||
356 | eq = strchr(cenv, '='); | |
357 | if (!eq) { | |
0c4025d1 LP |
358 | if (!env_name_is_valid(cenv)) |
359 | log_warning("Environment variable name '%s' is not valid. Ignoring.", cenv); | |
360 | else { | |
361 | r = unsetenv(cenv); | |
362 | if (r < 0) | |
363 | log_warning("Unsetting environment variable '%s' failed, ignoring: %m", cenv); | |
364 | } | |
9e7c5357 | 365 | } else { |
0c4025d1 LP |
366 | if (!env_assignment_is_valid(cenv)) |
367 | log_warning("Environment variable assignment '%s' is not valid. Ignoring.", cenv); | |
368 | else { | |
369 | *eq = 0; | |
370 | r = setenv(cenv, eq + 1, 1); | |
371 | if (r < 0) | |
372 | log_warning("Setting environment variable '%s=%s' failed, ignoring: %m", cenv, eq + 1); | |
373 | } | |
9e7c5357 | 374 | } |
9e58ff9c | 375 | |
66a78c2b LP |
376 | } else if (startswith(word, "systemd.") || |
377 | (in_initrd() && startswith(word, "rd.systemd."))) { | |
4fc935ca | 378 | |
dd7c30c3 LP |
379 | const char *c; |
380 | ||
381 | /* Ignore systemd.journald.xyz and friends */ | |
382 | c = word; | |
383 | if (startswith(c, "rd.")) | |
384 | c += 3; | |
385 | if (startswith(c, "systemd.")) | |
386 | c += 8; | |
387 | if (c[strcspn(c, ".=")] != '.') { | |
388 | ||
389 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
390 | ||
391 | log_info("Supported kernel switches:\n" | |
392 | "systemd.unit=UNIT Default unit to start\n" | |
393 | "rd.systemd.unit=UNIT Default unit to start when run in initrd\n" | |
394 | "systemd.dump_core=0|1 Dump core on crash\n" | |
395 | "systemd.crash_shell=0|1 Run shell on crash\n" | |
396 | "systemd.crash_chvt=N Change to VT #N on crash\n" | |
397 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" | |
398 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" | |
399 | "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n" | |
400 | " Log target\n" | |
401 | "systemd.log_level=LEVEL Log level\n" | |
402 | "systemd.log_color=0|1 Highlight important log messages\n" | |
403 | "systemd.log_location=0|1 Include code location in log messages\n" | |
404 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" | |
405 | " Set default log output for services\n" | |
406 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" | |
407 | " Set default log error output for services\n" | |
408 | "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n"); | |
409 | } | |
4fc935ca | 410 | |
d081dffb | 411 | } else if (streq(word, "quiet")) |
6e98720f | 412 | arg_show_status = false; |
d081dffb | 413 | else if (!in_initrd()) { |
f170852a LP |
414 | unsigned i; |
415 | ||
416 | /* SysV compatibility */ | |
f170852a LP |
417 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
418 | if (streq(word, rlmap[i])) | |
419 | return set_default_unit(rlmap[i+1]); | |
420 | } | |
421 | ||
422 | return 0; | |
423 | } | |
424 | ||
f975e971 | 425 | static int config_parse_level2( |
487393e9 LP |
426 | const char *filename, |
427 | unsigned line, | |
428 | const char *section, | |
429 | const char *lvalue, | |
3731f1ea | 430 | int ltype, |
487393e9 LP |
431 | const char *rvalue, |
432 | void *data, | |
433 | void *userdata) { | |
434 | ||
435 | assert(filename); | |
436 | assert(lvalue); | |
437 | assert(rvalue); | |
438 | ||
439 | log_set_max_level_from_string(rvalue); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | static int config_parse_target( | |
444 | const char *filename, | |
445 | unsigned line, | |
446 | const char *section, | |
447 | const char *lvalue, | |
3731f1ea | 448 | int ltype, |
487393e9 LP |
449 | const char *rvalue, |
450 | void *data, | |
451 | void *userdata) { | |
452 | ||
453 | assert(filename); | |
454 | assert(lvalue); | |
455 | assert(rvalue); | |
456 | ||
457 | log_set_target_from_string(rvalue); | |
458 | return 0; | |
459 | } | |
460 | ||
461 | static int config_parse_color( | |
462 | const char *filename, | |
463 | unsigned line, | |
464 | const char *section, | |
465 | const char *lvalue, | |
3731f1ea | 466 | int ltype, |
487393e9 LP |
467 | const char *rvalue, |
468 | void *data, | |
469 | void *userdata) { | |
470 | ||
471 | assert(filename); | |
472 | assert(lvalue); | |
473 | assert(rvalue); | |
474 | ||
475 | log_show_color_from_string(rvalue); | |
476 | return 0; | |
477 | } | |
478 | ||
479 | static int config_parse_location( | |
480 | const char *filename, | |
481 | unsigned line, | |
482 | const char *section, | |
483 | const char *lvalue, | |
3731f1ea | 484 | int ltype, |
487393e9 LP |
485 | const char *rvalue, |
486 | void *data, | |
487 | void *userdata) { | |
488 | ||
489 | assert(filename); | |
490 | assert(lvalue); | |
491 | assert(rvalue); | |
492 | ||
493 | log_show_location_from_string(rvalue); | |
494 | return 0; | |
495 | } | |
496 | ||
f975e971 | 497 | static int config_parse_cpu_affinity2( |
487393e9 LP |
498 | const char *filename, |
499 | unsigned line, | |
500 | const char *section, | |
501 | const char *lvalue, | |
3731f1ea | 502 | int ltype, |
487393e9 LP |
503 | const char *rvalue, |
504 | void *data, | |
505 | void *userdata) { | |
506 | ||
507 | char *w; | |
508 | size_t l; | |
509 | char *state; | |
510 | cpu_set_t *c = NULL; | |
511 | unsigned ncpus = 0; | |
512 | ||
513 | assert(filename); | |
514 | assert(lvalue); | |
515 | assert(rvalue); | |
516 | ||
f60f22df | 517 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
518 | char *t; |
519 | int r; | |
520 | unsigned cpu; | |
521 | ||
522 | if (!(t = strndup(w, l))) | |
14212119 | 523 | return log_oom(); |
487393e9 LP |
524 | |
525 | r = safe_atou(t, &cpu); | |
526 | free(t); | |
527 | ||
528 | if (!c) | |
529 | if (!(c = cpu_set_malloc(&ncpus))) | |
14212119 | 530 | return log_oom(); |
487393e9 LP |
531 | |
532 | if (r < 0 || cpu >= ncpus) { | |
533 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
534 | CPU_FREE(c); | |
535 | return -EBADMSG; | |
536 | } | |
537 | ||
538 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
539 | } | |
540 | ||
541 | if (c) { | |
542 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
543 | log_warning("Failed to set CPU affinity: %m"); | |
544 | ||
545 | CPU_FREE(c); | |
546 | } | |
547 | ||
548 | return 0; | |
549 | } | |
550 | ||
0c85a4f3 LP |
551 | static void strv_free_free(char ***l) { |
552 | char ***i; | |
553 | ||
554 | if (!l) | |
555 | return; | |
556 | ||
557 | for (i = l; *i; i++) | |
558 | strv_free(*i); | |
559 | ||
560 | free(l); | |
561 | } | |
562 | ||
563 | static void free_join_controllers(void) { | |
564 | if (!arg_join_controllers) | |
565 | return; | |
566 | ||
567 | strv_free_free(arg_join_controllers); | |
568 | arg_join_controllers = NULL; | |
569 | } | |
570 | ||
571 | static int config_parse_join_controllers( | |
572 | const char *filename, | |
573 | unsigned line, | |
574 | const char *section, | |
575 | const char *lvalue, | |
576 | int ltype, | |
577 | const char *rvalue, | |
578 | void *data, | |
579 | void *userdata) { | |
580 | ||
581 | unsigned n = 0; | |
582 | char *state, *w; | |
583 | size_t length; | |
584 | ||
585 | assert(filename); | |
586 | assert(lvalue); | |
587 | assert(rvalue); | |
588 | ||
589 | free_join_controllers(); | |
590 | ||
591 | FOREACH_WORD_QUOTED(w, length, rvalue, state) { | |
592 | char *s, **l; | |
593 | ||
594 | s = strndup(w, length); | |
595 | if (!s) | |
14212119 | 596 | return log_oom(); |
0c85a4f3 LP |
597 | |
598 | l = strv_split(s, ","); | |
599 | free(s); | |
600 | ||
601 | strv_uniq(l); | |
602 | ||
603 | if (strv_length(l) <= 1) { | |
604 | strv_free(l); | |
605 | continue; | |
606 | } | |
607 | ||
608 | if (!arg_join_controllers) { | |
609 | arg_join_controllers = new(char**, 2); | |
610 | if (!arg_join_controllers) { | |
611 | strv_free(l); | |
14212119 | 612 | return log_oom(); |
0c85a4f3 LP |
613 | } |
614 | ||
615 | arg_join_controllers[0] = l; | |
616 | arg_join_controllers[1] = NULL; | |
617 | ||
618 | n = 1; | |
619 | } else { | |
620 | char ***a; | |
621 | char ***t; | |
622 | ||
623 | t = new0(char**, n+2); | |
624 | if (!t) { | |
625 | strv_free(l); | |
14212119 | 626 | return log_oom(); |
0c85a4f3 LP |
627 | } |
628 | ||
629 | n = 0; | |
630 | ||
631 | for (a = arg_join_controllers; *a; a++) { | |
632 | ||
633 | if (strv_overlap(*a, l)) { | |
634 | char **c; | |
635 | ||
636 | c = strv_merge(*a, l); | |
637 | if (!c) { | |
638 | strv_free(l); | |
639 | strv_free_free(t); | |
14212119 | 640 | return log_oom(); |
0c85a4f3 LP |
641 | } |
642 | ||
643 | strv_free(l); | |
644 | l = c; | |
645 | } else { | |
646 | char **c; | |
647 | ||
648 | c = strv_copy(*a); | |
649 | if (!c) { | |
650 | strv_free(l); | |
651 | strv_free_free(t); | |
14212119 | 652 | return log_oom(); |
0c85a4f3 LP |
653 | } |
654 | ||
655 | t[n++] = c; | |
656 | } | |
657 | } | |
658 | ||
659 | t[n++] = strv_uniq(l); | |
660 | ||
661 | strv_free_free(arg_join_controllers); | |
662 | arg_join_controllers = t; | |
663 | } | |
664 | } | |
665 | ||
666 | return 0; | |
667 | } | |
668 | ||
487393e9 LP |
669 | static int parse_config_file(void) { |
670 | ||
f975e971 LP |
671 | const ConfigTableItem items[] = { |
672 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, | |
673 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
674 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
675 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
676 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
677 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
678 | { "Manager", "ShowStatus", config_parse_bool, 0, &arg_show_status }, | |
f975e971 LP |
679 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, |
680 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
f975e971 LP |
681 | { "Manager", "DefaultControllers", config_parse_strv, 0, &arg_default_controllers }, |
682 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, | |
683 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
0c85a4f3 | 684 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, |
e96d6be7 LP |
685 | { "Manager", "RuntimeWatchdogSec", config_parse_usec, 0, &arg_runtime_watchdog }, |
686 | { "Manager", "ShutdownWatchdogSec", config_parse_usec, 0, &arg_shutdown_watchdog }, | |
ec8927ca | 687 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, |
aa0f64ac | 688 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
c93ff2e9 FC |
689 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU]}, |
690 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE]}, | |
691 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA]}, | |
692 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK]}, | |
693 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE]}, | |
694 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS]}, | |
695 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE]}, | |
696 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS]}, | |
697 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC]}, | |
698 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK]}, | |
699 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS]}, | |
700 | { "Manager", "DefaultLimitSIGPENDING",config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING]}, | |
701 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE]}, | |
702 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE]}, | |
703 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO]}, | |
704 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME]}, | |
f975e971 | 705 | { NULL, NULL, NULL, 0, NULL } |
487393e9 LP |
706 | }; |
707 | ||
708 | FILE *f; | |
709 | const char *fn; | |
710 | int r; | |
711 | ||
67445f4e | 712 | fn = arg_running_as == SYSTEMD_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE; |
f975e971 LP |
713 | f = fopen(fn, "re"); |
714 | if (!f) { | |
487393e9 LP |
715 | if (errno == ENOENT) |
716 | return 0; | |
717 | ||
718 | log_warning("Failed to open configuration file '%s': %m", fn); | |
719 | return 0; | |
720 | } | |
721 | ||
f975e971 LP |
722 | r = config_parse(fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL); |
723 | if (r < 0) | |
487393e9 LP |
724 | log_warning("Failed to parse configuration file: %s", strerror(-r)); |
725 | ||
726 | fclose(f); | |
727 | ||
728 | return 0; | |
729 | } | |
730 | ||
f170852a | 731 | static int parse_proc_cmdline(void) { |
52661efd | 732 | char *line, *w, *state; |
f170852a | 733 | int r; |
f170852a | 734 | size_t l; |
f170852a | 735 | |
b770165a LP |
736 | /* Don't read /proc/cmdline if we are in a container, since |
737 | * that is only relevant for the host system */ | |
738 | if (detect_container(NULL) > 0) | |
739 | return 0; | |
740 | ||
f170852a | 741 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { |
e364ad06 | 742 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
743 | return 0; |
744 | } | |
745 | ||
746 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
747 | char *word; | |
748 | ||
749 | if (!(word = strndup(w, l))) { | |
750 | r = -ENOMEM; | |
751 | goto finish; | |
752 | } | |
753 | ||
754 | r = parse_proc_cmdline_word(word); | |
14212119 SL |
755 | if (r < 0) { |
756 | log_error("Failed on cmdline argument %s: %s", word, strerror(-r)); | |
032f8164 | 757 | free(word); |
f170852a | 758 | goto finish; |
14212119 | 759 | } |
032f8164 LN |
760 | |
761 | free(word); | |
f170852a LP |
762 | } |
763 | ||
764 | r = 0; | |
765 | ||
766 | finish: | |
767 | free(line); | |
768 | return r; | |
769 | } | |
770 | ||
771 | static int parse_argv(int argc, char *argv[]) { | |
772 | ||
773 | enum { | |
774 | ARG_LOG_LEVEL = 0x100, | |
775 | ARG_LOG_TARGET, | |
bbe63281 LP |
776 | ARG_LOG_COLOR, |
777 | ARG_LOG_LOCATION, | |
2f198e2f | 778 | ARG_UNIT, |
edb9aaa8 | 779 | ARG_SYSTEM, |
af2d49f7 | 780 | ARG_USER, |
e537352b | 781 | ARG_TEST, |
9ba0bc4e | 782 | ARG_VERSION, |
80876c20 | 783 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
784 | ARG_DUMP_CORE, |
785 | ARG_CRASH_SHELL, | |
a16e1123 | 786 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 787 | ARG_SHOW_STATUS, |
4288f619 | 788 | ARG_DESERIALIZE, |
2660882b | 789 | ARG_SWITCHED_ROOT, |
0a494f1f LP |
790 | ARG_INTROSPECT, |
791 | ARG_DEFAULT_STD_OUTPUT, | |
792 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
793 | }; |
794 | ||
795 | static const struct option options[] = { | |
a16e1123 LP |
796 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
797 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
798 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
799 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 800 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 801 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 802 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
803 | { "test", no_argument, NULL, ARG_TEST }, |
804 | { "help", no_argument, NULL, 'h' }, | |
9ba0bc4e | 805 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 806 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 LP |
807 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
808 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
809 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 810 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 811 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 812 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
4288f619 | 813 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
0a494f1f LP |
814 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
815 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 816 | { NULL, 0, NULL, 0 } |
f170852a LP |
817 | }; |
818 | ||
819 | int c, r; | |
820 | ||
821 | assert(argc >= 1); | |
822 | assert(argv); | |
823 | ||
b770165a LP |
824 | if (getpid() == 1) |
825 | opterr = 0; | |
826 | ||
099663ff | 827 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
828 | |
829 | switch (c) { | |
830 | ||
831 | case ARG_LOG_LEVEL: | |
832 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
833 | log_error("Failed to parse log level %s.", optarg); | |
834 | return r; | |
835 | } | |
836 | ||
837 | break; | |
838 | ||
839 | case ARG_LOG_TARGET: | |
840 | ||
841 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
842 | log_error("Failed to parse log target %s.", optarg); | |
843 | return r; | |
844 | } | |
845 | ||
846 | break; | |
847 | ||
bbe63281 LP |
848 | case ARG_LOG_COLOR: |
849 | ||
d0b170c8 LP |
850 | if (optarg) { |
851 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
852 | log_error("Failed to parse log color setting %s.", optarg); | |
853 | return r; | |
854 | } | |
855 | } else | |
856 | log_show_color(true); | |
bbe63281 LP |
857 | |
858 | break; | |
859 | ||
860 | case ARG_LOG_LOCATION: | |
861 | ||
d0b170c8 LP |
862 | if (optarg) { |
863 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
864 | log_error("Failed to parse log location setting %s.", optarg); | |
865 | return r; | |
866 | } | |
867 | } else | |
868 | log_show_location(true); | |
bbe63281 LP |
869 | |
870 | break; | |
871 | ||
0a494f1f LP |
872 | case ARG_DEFAULT_STD_OUTPUT: |
873 | ||
874 | if ((r = exec_output_from_string(optarg)) < 0) { | |
875 | log_error("Failed to parse default standard output setting %s.", optarg); | |
876 | return r; | |
877 | } else | |
878 | arg_default_std_output = r; | |
879 | break; | |
880 | ||
881 | case ARG_DEFAULT_STD_ERROR: | |
882 | ||
883 | if ((r = exec_output_from_string(optarg)) < 0) { | |
884 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
885 | return r; | |
886 | } else | |
887 | arg_default_std_error = r; | |
888 | break; | |
889 | ||
2f198e2f | 890 | case ARG_UNIT: |
f170852a LP |
891 | |
892 | if ((r = set_default_unit(optarg)) < 0) { | |
893 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
894 | return r; | |
895 | } | |
896 | ||
897 | break; | |
898 | ||
edb9aaa8 | 899 | case ARG_SYSTEM: |
67445f4e | 900 | arg_running_as = SYSTEMD_SYSTEM; |
edb9aaa8 | 901 | break; |
a5dab5ce | 902 | |
af2d49f7 | 903 | case ARG_USER: |
67445f4e | 904 | arg_running_as = SYSTEMD_USER; |
a5dab5ce | 905 | break; |
a5dab5ce | 906 | |
e965d56d | 907 | case ARG_TEST: |
fa0f4d8a | 908 | arg_action = ACTION_TEST; |
e965d56d LP |
909 | break; |
910 | ||
9ba0bc4e ZJS |
911 | case ARG_VERSION: |
912 | arg_action = ACTION_VERSION; | |
913 | break; | |
914 | ||
e537352b | 915 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 916 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
917 | break; |
918 | ||
9e58ff9c | 919 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
920 | r = optarg ? parse_boolean(optarg) : 1; |
921 | if (r < 0) { | |
922 | log_error("Failed to parse dump core boolean %s.", optarg); | |
923 | return r; | |
924 | } | |
925 | arg_dump_core = r; | |
9e58ff9c LP |
926 | break; |
927 | ||
928 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
929 | r = optarg ? parse_boolean(optarg) : 1; |
930 | if (r < 0) { | |
931 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
932 | return r; | |
933 | } | |
934 | arg_crash_shell = r; | |
9e58ff9c LP |
935 | break; |
936 | ||
80876c20 | 937 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
938 | r = optarg ? parse_boolean(optarg) : 1; |
939 | if (r < 0) { | |
940 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
941 | return r; | |
942 | } | |
943 | arg_confirm_spawn = r; | |
80876c20 LP |
944 | break; |
945 | ||
9e58ff9c | 946 | case ARG_SHOW_STATUS: |
a5d87bf0 LP |
947 | r = optarg ? parse_boolean(optarg) : 1; |
948 | if (r < 0) { | |
949 | log_error("Failed to parse show status boolean %s.", optarg); | |
950 | return r; | |
951 | } | |
952 | arg_show_status = r; | |
6e98720f | 953 | break; |
a5d87bf0 | 954 | |
a16e1123 LP |
955 | case ARG_DESERIALIZE: { |
956 | int fd; | |
957 | FILE *f; | |
958 | ||
01e10de3 LP |
959 | r = safe_atoi(optarg, &fd); |
960 | if (r < 0 || fd < 0) { | |
a16e1123 | 961 | log_error("Failed to parse deserialize option %s.", optarg); |
01e10de3 | 962 | return r < 0 ? r : -EINVAL; |
a16e1123 LP |
963 | } |
964 | ||
01e10de3 LP |
965 | fd_cloexec(fd, true); |
966 | ||
967 | f = fdopen(fd, "r"); | |
968 | if (!f) { | |
a16e1123 | 969 | log_error("Failed to open serialization fd: %m"); |
01e10de3 | 970 | return -errno; |
a16e1123 LP |
971 | } |
972 | ||
973 | if (serialization) | |
974 | fclose(serialization); | |
975 | ||
976 | serialization = f; | |
977 | ||
978 | break; | |
979 | } | |
980 | ||
2660882b | 981 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 982 | arg_switched_root = true; |
d03bc1b8 HH |
983 | break; |
984 | ||
4288f619 LP |
985 | case ARG_INTROSPECT: { |
986 | const char * const * i = NULL; | |
987 | ||
988 | for (i = bus_interface_table; *i; i += 2) | |
989 | if (!optarg || streq(i[0], optarg)) { | |
990 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
991 | "<node>\n", stdout); | |
992 | fputs(i[1], stdout); | |
993 | fputs("</node>\n", stdout); | |
994 | ||
995 | if (optarg) | |
996 | break; | |
997 | } | |
998 | ||
999 | if (!i[0] && optarg) | |
1000 | log_error("Unknown interface %s.", optarg); | |
1001 | ||
fa0f4d8a | 1002 | arg_action = ACTION_DONE; |
4288f619 LP |
1003 | break; |
1004 | } | |
1005 | ||
f170852a | 1006 | case 'h': |
fa0f4d8a | 1007 | arg_action = ACTION_HELP; |
f170852a LP |
1008 | break; |
1009 | ||
1d2e23ab LP |
1010 | case 'D': |
1011 | log_set_max_level(LOG_DEBUG); | |
1012 | break; | |
1013 | ||
099663ff LP |
1014 | case 'b': |
1015 | case 's': | |
1016 | case 'z': | |
1017 | /* Just to eat away the sysvinit kernel | |
1018 | * cmdline args without getopt() error | |
1019 | * messages that we'll parse in | |
1020 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 1021 | |
099663ff | 1022 | case '?': |
f170852a | 1023 | default: |
099663ff LP |
1024 | if (getpid() != 1) { |
1025 | log_error("Unknown option code %c", c); | |
1026 | return -EINVAL; | |
1027 | } | |
1028 | ||
1029 | break; | |
f170852a LP |
1030 | } |
1031 | ||
d821e6d6 LP |
1032 | if (optind < argc && getpid() != 1) { |
1033 | /* Hmm, when we aren't run as init system | |
1034 | * let's complain about excess arguments */ | |
1035 | ||
1036 | log_error("Excess arguments."); | |
1037 | return -EINVAL; | |
1038 | } | |
1039 | ||
1040 | if (detect_container(NULL) > 0) { | |
1041 | char **a; | |
1042 | ||
1043 | /* All /proc/cmdline arguments the kernel didn't | |
1044 | * understand it passed to us. We're not really | |
1045 | * interested in that usually since /proc/cmdline is | |
1046 | * more interesting and complete. With one exception: | |
1047 | * if we are run in a container /proc/cmdline is not | |
1048 | * relevant for the container, hence we rely on argv[] | |
1049 | * instead. */ | |
1050 | ||
1051 | for (a = argv; a < argv + argc; a++) | |
14212119 SL |
1052 | if ((r = parse_proc_cmdline_word(*a)) < 0) { |
1053 | log_error("Failed on cmdline argument %s: %s", *a, strerror(-r)); | |
d821e6d6 | 1054 | return r; |
14212119 | 1055 | } |
51f0e189 LP |
1056 | } |
1057 | ||
f170852a LP |
1058 | return 0; |
1059 | } | |
1060 | ||
1061 | static int help(void) { | |
1062 | ||
2e33c433 | 1063 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1064 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1065 | " -h --help Show this help\n" |
e537352b | 1066 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 1067 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 1068 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 1069 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1070 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1071 | " --user Run a user instance\n" |
a5d87bf0 LP |
1072 | " --dump-core[=0|1] Dump core on crash\n" |
1073 | " --crash-shell[=0|1] Run shell on crash\n" | |
1074 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 1075 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
4cfa2c99 | 1076 | " --log-target=TARGET Set log target (console, journal, syslog, kmsg, journal-or-kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 1077 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 1078 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
1079 | " --log-location[=0|1] Include code location in log messages\n" |
1080 | " --default-standard-output= Set default standard output for services\n" | |
1081 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1082 | program_invocation_short_name); |
f170852a LP |
1083 | |
1084 | return 0; | |
1085 | } | |
1086 | ||
9ba0bc4e ZJS |
1087 | static int version(void) { |
1088 | puts(PACKAGE_STRING); | |
9ba0bc4e ZJS |
1089 | puts(SYSTEMD_FEATURES); |
1090 | ||
1091 | return 0; | |
1092 | } | |
1093 | ||
6b78f9b4 | 1094 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool serialize_jobs) { |
a16e1123 LP |
1095 | FILE *f = NULL; |
1096 | FDSet *fds = NULL; | |
1097 | int r; | |
1098 | ||
1099 | assert(m); | |
1100 | assert(_f); | |
1101 | assert(_fds); | |
1102 | ||
a7556052 LP |
1103 | /* Make sure nothing is really destructed when we shut down */ |
1104 | m->n_reloading ++; | |
1105 | ||
6b78f9b4 LP |
1106 | r = manager_open_serialization(m, &f); |
1107 | if (r < 0) { | |
35b8ca3a | 1108 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
1109 | goto fail; |
1110 | } | |
1111 | ||
6b78f9b4 LP |
1112 | fds = fdset_new(); |
1113 | if (!fds) { | |
a16e1123 LP |
1114 | r = -ENOMEM; |
1115 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1116 | goto fail; | |
1117 | } | |
1118 | ||
6b78f9b4 LP |
1119 | r = manager_serialize(m, f, fds, serialize_jobs); |
1120 | if (r < 0) { | |
a16e1123 LP |
1121 | log_error("Failed to serialize state: %s", strerror(-r)); |
1122 | goto fail; | |
1123 | } | |
1124 | ||
1125 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
1126 | log_error("Failed to rewind serialization fd: %m"); | |
1127 | goto fail; | |
1128 | } | |
1129 | ||
6b78f9b4 LP |
1130 | r = fd_cloexec(fileno(f), false); |
1131 | if (r < 0) { | |
a16e1123 LP |
1132 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); |
1133 | goto fail; | |
1134 | } | |
1135 | ||
6b78f9b4 LP |
1136 | r = fdset_cloexec(fds, false); |
1137 | if (r < 0) { | |
a16e1123 LP |
1138 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); |
1139 | goto fail; | |
1140 | } | |
1141 | ||
1142 | *_f = f; | |
1143 | *_fds = fds; | |
1144 | ||
1145 | return 0; | |
1146 | ||
1147 | fail: | |
1148 | fdset_free(fds); | |
1149 | ||
1150 | if (f) | |
1151 | fclose(f); | |
1152 | ||
1153 | return r; | |
1154 | } | |
1155 | ||
4096d6f5 LP |
1156 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1157 | struct rlimit nl; | |
1158 | int r; | |
1159 | ||
1160 | assert(saved_rlimit); | |
1161 | ||
1162 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1163 | * later when transitioning from the initrd to the main | |
1164 | * systemd or suchlike. */ | |
1165 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) { | |
1166 | log_error("Reading RLIMIT_NOFILE failed: %m"); | |
1167 | return -errno; | |
1168 | } | |
1169 | ||
1170 | /* Make sure forked processes get the default kernel setting */ | |
1171 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1172 | struct rlimit *rl; | |
1173 | ||
1174 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1175 | if (!rl) | |
1176 | return log_oom(); | |
1177 | ||
1178 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1179 | } | |
1180 | ||
1181 | /* Bump up the resource limit for ourselves substantially */ | |
1182 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1183 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
1184 | if (r < 0) { | |
1185 | log_error("Setting RLIMIT_NOFILE failed: %s", strerror(-r)); | |
1186 | return r; | |
1187 | } | |
1188 | ||
1189 | return 0; | |
1190 | } | |
1191 | ||
e9ddabc2 LP |
1192 | static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { |
1193 | const char *e; | |
1194 | unsigned long long a, b; | |
1195 | ||
1196 | assert(t); | |
1197 | ||
966a5d37 LP |
1198 | e = getenv("RD_TIMESTAMP"); |
1199 | if (!e) | |
e9ddabc2 LP |
1200 | return NULL; |
1201 | ||
1202 | if (sscanf(e, "%llu %llu", &a, &b) != 2) | |
1203 | return NULL; | |
1204 | ||
1205 | t->realtime = (usec_t) a; | |
1206 | t->monotonic = (usec_t) b; | |
1207 | ||
1208 | return t; | |
1209 | } | |
1210 | ||
6ee5bbf8 LP |
1211 | static void test_mtab(void) { |
1212 | char *p; | |
1213 | ||
80758717 LP |
1214 | /* Check that /etc/mtab is a symlink */ |
1215 | ||
6ee5bbf8 LP |
1216 | if (readlink_malloc("/etc/mtab", &p) >= 0) { |
1217 | bool b; | |
1218 | ||
ed86ebc4 | 1219 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
1220 | free(p); |
1221 | ||
1222 | if (b) | |
1223 | return; | |
1224 | } | |
1225 | ||
80758717 LP |
1226 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1227 | "This is not supported anymore. " | |
1228 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1229 | } | |
1230 | ||
1231 | static void test_usr(void) { | |
80758717 | 1232 | |
ed1c99fc | 1233 | /* Check that /usr is not a separate fs */ |
80758717 | 1234 | |
871c44a7 LP |
1235 | if (dir_is_empty("/usr") <= 0) |
1236 | return; | |
1237 | ||
2376ce13 | 1238 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1239 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1240 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1241 | } | |
1242 | ||
1243 | static void test_cgroups(void) { | |
1244 | ||
1245 | if (access("/proc/cgroups", F_OK) >= 0) | |
1246 | return; | |
1247 | ||
1248 | log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " | |
1249 | "Systems without control groups are not supported. " | |
1250 | "We will now sleep for 10s, and then continue boot-up. " | |
1251 | "Expect breakage and please do not file bugs. " | |
966a5d37 LP |
1252 | "Instead fix your kernel and enable CONFIG_CGROUPS. " |
1253 | "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information."); | |
871c44a7 LP |
1254 | |
1255 | sleep(10); | |
6ee5bbf8 LP |
1256 | } |
1257 | ||
a07fdfa3 LP |
1258 | static int initialize_join_controllers(void) { |
1259 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1260 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
1261 | * "cpuset" does't really work for groups with no initialized | |
1262 | * attributes. */ | |
1263 | ||
1264 | arg_join_controllers = new(char**, 3); | |
1265 | if (!arg_join_controllers) | |
1266 | return -ENOMEM; | |
1267 | ||
1268 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
1269 | if (!arg_join_controllers[0]) | |
1270 | return -ENOMEM; | |
1271 | ||
1272 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); | |
1273 | if (!arg_join_controllers[1]) | |
1274 | return -ENOMEM; | |
1275 | ||
1276 | arg_join_controllers[2] = NULL; | |
1277 | return 0; | |
1278 | } | |
1279 | ||
60918275 LP |
1280 | int main(int argc, char *argv[]) { |
1281 | Manager *m = NULL; | |
22f4096c | 1282 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1283 | usec_t before_startup, after_startup; |
1284 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1285 | FDSet *fds = NULL; |
1286 | bool reexecute = false; | |
b9080b03 | 1287 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1288 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
5d6b1584 | 1289 | static char systemd[] = "systemd"; |
2660882b | 1290 | bool skip_setup = false; |
0b3325e7 LP |
1291 | int j; |
1292 | bool loaded_policy = false; | |
e96d6be7 | 1293 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1294 | bool queue_default_job = false; |
41669317 | 1295 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
4096d6f5 | 1296 | static struct rlimit saved_rlimit_nofile = { 0, 0 }; |
27b14a22 | 1297 | |
058dc6f3 | 1298 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1299 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1300 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1301 | * calling init as a user is identical to telinit. */ |
1302 | ||
1303 | errno = -ENOENT; | |
1304 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1305 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1306 | return 1; | |
1307 | } | |
058dc6f3 | 1308 | #endif |
2cb1a60d | 1309 | |
0b3325e7 LP |
1310 | /* Determine if this is a reexecution or normal bootup. We do |
1311 | * the full command line parsing much later, so let's just | |
1312 | * have a quick peek here. */ | |
0b3325e7 LP |
1313 | for (j = 1; j < argc; j++) |
1314 | if (streq(argv[j], "--deserialize")) { | |
2660882b | 1315 | skip_setup = true; |
7aaa27f2 | 1316 | break; |
0b3325e7 LP |
1317 | } |
1318 | ||
2660882b LP |
1319 | /* If we have switched root, do all the special setup |
1320 | * things */ | |
d03bc1b8 | 1321 | for (j = 1; j < argc; j++) |
2660882b LP |
1322 | if (streq(argv[j], "--switched-root")) { |
1323 | skip_setup = false; | |
d03bc1b8 HH |
1324 | break; |
1325 | } | |
1326 | ||
f3b6a3ed LP |
1327 | /* If we get started via the /sbin/init symlink then we are |
1328 | called 'init'. After a subsequent reexecution we are then | |
1329 | called 'systemd'. That is confusing, hence let's call us | |
1330 | systemd right-away. */ | |
f3b6a3ed LP |
1331 | program_invocation_short_name = systemd; |
1332 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1333 | |
9a0e6896 LP |
1334 | saved_argv = argv; |
1335 | saved_argc = argc; | |
f3b6a3ed | 1336 | |
2cc59dbf | 1337 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1338 | |
a866073d LP |
1339 | if (getpid() == 1 && detect_container(NULL) <= 0) { |
1340 | ||
1341 | /* Running outside of a container as PID 1 */ | |
67445f4e | 1342 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1343 | make_null_stdio(); |
1344 | log_set_target(LOG_TARGET_KMSG); | |
1345 | log_open(); | |
1346 | ||
c3ba6250 HH |
1347 | if (in_initrd()) { |
1348 | char *rd_timestamp = NULL; | |
1349 | ||
1350 | dual_timestamp_get(&initrd_timestamp); | |
1351 | asprintf(&rd_timestamp, "%llu %llu", | |
1352 | (unsigned long long) initrd_timestamp.realtime, | |
1353 | (unsigned long long) initrd_timestamp.monotonic); | |
1354 | if (rd_timestamp) { | |
1355 | setenv("RD_TIMESTAMP", rd_timestamp, 1); | |
1356 | free(rd_timestamp); | |
1357 | } | |
1358 | } | |
1359 | ||
2660882b | 1360 | if (!skip_setup) { |
8f838d8a | 1361 | mount_setup_early(); |
0b3325e7 LP |
1362 | if (selinux_setup(&loaded_policy) < 0) |
1363 | goto finish; | |
81611586 RS |
1364 | if (ima_setup() < 0) |
1365 | goto finish; | |
ffbd2c4d NC |
1366 | if (smack_setup() < 0) |
1367 | goto finish; | |
81611586 | 1368 | } |
0b3325e7 | 1369 | |
e9a5ef7c | 1370 | if (label_init(NULL) < 0) |
0ff4cdd9 | 1371 | goto finish; |
7948c4df | 1372 | |
72edcff5 | 1373 | if (!skip_setup) { |
0b3325e7 LP |
1374 | if (hwclock_is_localtime() > 0) { |
1375 | int min; | |
7948c4df | 1376 | |
72edcff5 KS |
1377 | /* The first-time call to settimeofday() does a time warp in the kernel */ |
1378 | r = hwclock_set_timezone(&min); | |
0b3325e7 LP |
1379 | if (r < 0) |
1380 | log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); | |
1381 | else | |
1382 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1383 | } else if (!in_initrd()) { |
1384 | /* | |
1385 | * Do dummy first-time call to seal the kernel's time warp magic | |
1386 | * | |
1387 | * Do not call this this from inside the initrd. The initrd might not | |
1388 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1389 | * that way. In such case, we need to delay the time-warp or the sealing | |
1390 | * until we reach the real system. | |
1391 | */ | |
72edcff5 | 1392 | hwclock_reset_timezone(); |
871e5809 | 1393 | |
72edcff5 KS |
1394 | /* Tell the kernel our time zone */ |
1395 | r = hwclock_set_timezone(NULL); | |
1396 | if (r < 0) | |
1397 | log_error("Failed to set the kernel's time zone, ignoring: %s", strerror(-r)); | |
1398 | } | |
1399 | } | |
a866073d LP |
1400 | |
1401 | /* Set the default for later on, but don't actually | |
1402 | * open the logs like this for now. Note that if we | |
1403 | * are transitioning from the initrd there might still | |
1404 | * be journal fd open, and we shouldn't attempt | |
1405 | * opening that before we parsed /proc/cmdline which | |
1406 | * might redirect output elsewhere. */ | |
1407 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1408 | ||
1409 | } else if (getpid() == 1) { | |
1410 | ||
1411 | /* Running inside a container, as PID 1 */ | |
67445f4e | 1412 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1413 | log_set_target(LOG_TARGET_CONSOLE); |
1414 | log_open(); | |
1415 | ||
1416 | /* For the later on, see above... */ | |
1417 | log_set_target(LOG_TARGET_JOURNAL); | |
1418 | ||
bbe63281 | 1419 | } else { |
a866073d LP |
1420 | |
1421 | /* Running as user instance */ | |
67445f4e | 1422 | arg_running_as = SYSTEMD_USER; |
eeecf6e6 | 1423 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1424 | log_open(); |
bbe63281 | 1425 | } |
a5dab5ce | 1426 | |
0c85a4f3 | 1427 | /* Initialize default unit */ |
6afa301b LP |
1428 | r = set_default_unit(SPECIAL_DEFAULT_TARGET); |
1429 | if (r < 0) { | |
14212119 | 1430 | log_error("Failed to set default unit %s: %s", SPECIAL_DEFAULT_TARGET, strerror(-r)); |
f170852a | 1431 | goto finish; |
14212119 | 1432 | } |
60918275 | 1433 | |
a07fdfa3 LP |
1434 | r = initialize_join_controllers(); |
1435 | if (r < 0) | |
0c85a4f3 LP |
1436 | goto finish; |
1437 | ||
f170852a LP |
1438 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1439 | * /proc/$PID/fd is available. */ | |
0c85a4f3 LP |
1440 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1441 | r = mount_setup(loaded_policy); | |
1442 | if (r < 0) | |
8efe3c01 | 1443 | goto finish; |
0c85a4f3 | 1444 | } |
4ade7963 LP |
1445 | |
1446 | /* Reset all signal handlers. */ | |
1447 | assert_se(reset_all_signal_handlers() == 0); | |
1448 | ||
078e4539 | 1449 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 1450 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1451 | |
487393e9 LP |
1452 | if (parse_config_file() < 0) |
1453 | goto finish; | |
1454 | ||
67445f4e | 1455 | if (arg_running_as == SYSTEMD_SYSTEM) |
a5dab5ce LP |
1456 | if (parse_proc_cmdline() < 0) |
1457 | goto finish; | |
f170852a LP |
1458 | |
1459 | log_parse_environment(); | |
1460 | ||
1461 | if (parse_argv(argc, argv) < 0) | |
1462 | goto finish; | |
1463 | ||
6bae23a0 TB |
1464 | if (arg_action == ACTION_TEST && |
1465 | geteuid() == 0) { | |
b5c6cf87 LP |
1466 | log_error("Don't run test mode as root."); |
1467 | goto finish; | |
1468 | } | |
1469 | ||
6bae23a0 TB |
1470 | if (arg_running_as == SYSTEMD_USER && |
1471 | arg_action == ACTION_RUN && | |
1472 | sd_booted() <= 0) { | |
1473 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1474 | goto finish; | |
1475 | } | |
1476 | ||
67445f4e | 1477 | if (arg_running_as == SYSTEMD_SYSTEM && |
fe783b03 LP |
1478 | arg_action == ACTION_RUN && |
1479 | running_in_chroot() > 0) { | |
1480 | log_error("Cannot be run in a chroot() environment."); | |
1481 | goto finish; | |
1482 | } | |
1483 | ||
fa0f4d8a | 1484 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1485 | retval = help(); |
1486 | goto finish; | |
9ba0bc4e ZJS |
1487 | } else if (arg_action == ACTION_VERSION) { |
1488 | retval = version(); | |
1489 | goto finish; | |
fa0f4d8a | 1490 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1491 | unit_dump_config_items(stdout); |
22f4096c | 1492 | retval = EXIT_SUCCESS; |
e537352b | 1493 | goto finish; |
fa0f4d8a | 1494 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1495 | retval = EXIT_SUCCESS; |
4288f619 | 1496 | goto finish; |
f170852a LP |
1497 | } |
1498 | ||
fa0f4d8a | 1499 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1500 | |
871e5809 LP |
1501 | /* Close logging fds, in order not to confuse fdset below */ |
1502 | log_close(); | |
1503 | ||
a16e1123 | 1504 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1505 | r = fdset_new_fill(&fds); |
1506 | if (r < 0) { | |
1507 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1508 | goto finish; | |
1509 | } else | |
1510 | fdset_cloexec(fds, true); | |
a16e1123 | 1511 | |
01e10de3 | 1512 | if (serialization) |
a16e1123 | 1513 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); |
a16e1123 | 1514 | |
09082a94 | 1515 | /* Set up PATH unless it is already set */ |
e537352b | 1516 | setenv("PATH", |
2c6db6fb | 1517 | #ifdef HAVE_SPLIT_USR |
e537352b | 1518 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", |
2c6db6fb LP |
1519 | #else |
1520 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin", | |
1521 | #endif | |
67445f4e | 1522 | arg_running_as == SYSTEMD_SYSTEM); |
09082a94 | 1523 | |
67445f4e | 1524 | if (arg_running_as == SYSTEMD_SYSTEM) { |
71ecc858 LP |
1525 | /* Parse the data passed to us. We leave this |
1526 | * variables set, but the manager later on will not | |
1527 | * pass them on to our children. */ | |
2660882b | 1528 | if (!in_initrd()) |
c3ba6250 | 1529 | parse_initrd_timestamp(&initrd_timestamp); |
e9ddabc2 LP |
1530 | |
1531 | /* Unset some environment variables passed in from the | |
1532 | * kernel that don't really make sense for us. */ | |
39439087 LP |
1533 | unsetenv("HOME"); |
1534 | unsetenv("TERM"); | |
b770165a | 1535 | |
9543ad16 LP |
1536 | /* When we are invoked by a shell, these might be set, |
1537 | * but make little sense to pass on */ | |
1538 | unsetenv("PWD"); | |
1539 | unsetenv("SHLVL"); | |
1540 | unsetenv("_"); | |
1541 | ||
2660882b | 1542 | /* When we are invoked by a chroot-like tool such as |
9f28b98e LP |
1543 | * nspawn, these might be set, but make little sense |
1544 | * to pass on */ | |
1545 | unsetenv("USER"); | |
1546 | unsetenv("LOGNAME"); | |
1547 | ||
01e10de3 LP |
1548 | /* We suppress the socket activation env vars, as |
1549 | * we'll try to match *any* open fd to units if | |
1550 | * possible. */ | |
1551 | unsetenv("LISTEN_FDS"); | |
1552 | unsetenv("LISTEN_PID"); | |
1553 | ||
b770165a LP |
1554 | /* All other variables are left as is, so that clients |
1555 | * can still read them via /proc/1/environ */ | |
39439087 | 1556 | } |
1104f3c1 | 1557 | |
f170852a LP |
1558 | /* Move out of the way, so that we won't block unmounts */ |
1559 | assert_se(chdir("/") == 0); | |
1560 | ||
67445f4e | 1561 | if (arg_running_as == SYSTEMD_SYSTEM) { |
80876c20 LP |
1562 | /* Become a session leader if we aren't one yet. */ |
1563 | setsid(); | |
4ade7963 | 1564 | |
80876c20 LP |
1565 | /* Disable the umask logic */ |
1566 | umask(0); | |
1567 | } | |
1568 | ||
843d2643 LP |
1569 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
1570 | dbus_connection_set_change_sigpipe(FALSE); | |
1571 | ||
2146621b LP |
1572 | /* Reset the console, but only if this is really init and we |
1573 | * are freshly booted */ | |
67445f4e | 1574 | if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) |
2660882b | 1575 | console_setup(getpid() == 1 && !skip_setup); |
4ade7963 | 1576 | |
18149b9f | 1577 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1578 | log_open(); |
4ade7963 | 1579 | |
5373d602 LP |
1580 | /* Make sure we leave a core dump without panicing the |
1581 | * kernel. */ | |
4fc935ca LP |
1582 | if (getpid() == 1) |
1583 | install_crash_handler(); | |
97c4f35c | 1584 | |
0c85a4f3 LP |
1585 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1586 | r = mount_cgroup_controllers(arg_join_controllers); | |
1587 | if (r < 0) | |
1588 | goto finish; | |
1589 | } | |
1590 | ||
67445f4e | 1591 | if (arg_running_as == SYSTEMD_SYSTEM) { |
c20f5ac7 LP |
1592 | const char *virtualization = NULL; |
1593 | ||
bc270841 | 1594 | log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES ")"); |
c20f5ac7 LP |
1595 | |
1596 | detect_virtualization(&virtualization); | |
1597 | if (virtualization) | |
1598 | log_info("Detected virtualization '%s'.", virtualization); | |
1599 | ||
26a1efdf LP |
1600 | if (in_initrd()) |
1601 | log_info("Running in initial RAM disk."); | |
1602 | ||
c20f5ac7 | 1603 | } else |
bc270841 | 1604 | log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES ")"); |
a5dab5ce | 1605 | |
67445f4e | 1606 | if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { |
72bca11b LP |
1607 | locale_setup(); |
1608 | ||
6faa1114 | 1609 | if (arg_show_status || plymouth_running()) |
888c6216 LP |
1610 | status_welcome(); |
1611 | ||
e3043162 | 1612 | #ifdef HAVE_KMOD |
888c6216 | 1613 | kmod_setup(); |
e3043162 | 1614 | #endif |
888c6216 | 1615 | hostname_setup(); |
d7ccca2e | 1616 | machine_id_setup(); |
888c6216 | 1617 | loopback_setup(); |
490aed58 | 1618 | |
6ee5bbf8 | 1619 | test_mtab(); |
80758717 | 1620 | test_usr(); |
871c44a7 | 1621 | test_cgroups(); |
af5bc85d | 1622 | } |
302e8c4c | 1623 | |
67445f4e | 1624 | if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) |
e96d6be7 LP |
1625 | watchdog_set_timeout(&arg_runtime_watchdog); |
1626 | ||
aa0f64ac LP |
1627 | if (arg_timer_slack_nsec != (nsec_t) -1) |
1628 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) | |
1629 | log_error("Failed to adjust timer slack: %m"); | |
1630 | ||
ec8927ca LP |
1631 | if (arg_capability_bounding_set_drop) { |
1632 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); | |
1633 | if (r < 0) { | |
1634 | log_error("Failed to drop capability bounding set: %s", strerror(-r)); | |
1635 | goto finish; | |
1636 | } | |
939b8f14 LP |
1637 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
1638 | if (r < 0) { | |
1639 | log_error("Failed to drop capability bounding set of usermode helpers: %s", strerror(-r)); | |
1640 | goto finish; | |
1641 | } | |
ec8927ca LP |
1642 | } |
1643 | ||
67445f4e | 1644 | if (arg_running_as == SYSTEMD_USER) { |
d4447f4d | 1645 | /* Become reaper of our children */ |
8b8ffe68 LP |
1646 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { |
1647 | log_warning("Failed to make us a subreaper: %m"); | |
1648 | if (errno == EINVAL) | |
ddfa5101 | 1649 | log_info("Perhaps the kernel version is too old (< 3.4?)"); |
8b8ffe68 | 1650 | } |
d4447f4d AK |
1651 | } |
1652 | ||
67445f4e | 1653 | if (arg_running_as == SYSTEMD_SYSTEM) |
4096d6f5 LP |
1654 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1655 | ||
e96d6be7 LP |
1656 | r = manager_new(arg_running_as, &m); |
1657 | if (r < 0) { | |
8e274523 | 1658 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1659 | goto finish; |
1660 | } | |
1661 | ||
9e58ff9c | 1662 | m->confirm_spawn = arg_confirm_spawn; |
0a494f1f LP |
1663 | m->default_std_output = arg_default_std_output; |
1664 | m->default_std_error = arg_default_std_error; | |
e96d6be7 LP |
1665 | m->runtime_watchdog = arg_runtime_watchdog; |
1666 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
9e58ff9c | 1667 | |
c93ff2e9 FC |
1668 | manager_set_default_rlimits(m, arg_default_rlimit); |
1669 | ||
e9ddabc2 LP |
1670 | if (dual_timestamp_is_set(&initrd_timestamp)) |
1671 | m->initrd_timestamp = initrd_timestamp; | |
1672 | ||
06d4c99a LP |
1673 | if (arg_default_controllers) |
1674 | manager_set_default_controllers(m, arg_default_controllers); | |
1675 | ||
27d340c7 LP |
1676 | manager_set_show_status(m, arg_show_status); |
1677 | ||
bf4df7c3 LP |
1678 | /* Remember whether we should queue the default job */ |
1679 | queue_default_job = !serialization || arg_switched_root; | |
1680 | ||
9d76d730 LP |
1681 | before_startup = now(CLOCK_MONOTONIC); |
1682 | ||
e96d6be7 LP |
1683 | r = manager_startup(m, serialization, fds); |
1684 | if (r < 0) | |
6e2ef85b | 1685 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 | 1686 | |
bf4df7c3 LP |
1687 | /* This will close all file descriptors that were opened, but |
1688 | * not claimed by any unit. */ | |
01e10de3 | 1689 | fdset_free(fds); |
f50e0a01 | 1690 | |
a16e1123 LP |
1691 | if (serialization) { |
1692 | fclose(serialization); | |
1693 | serialization = NULL; | |
bf4df7c3 LP |
1694 | } |
1695 | ||
1696 | if (queue_default_job) { | |
398ef8ba | 1697 | DBusError error; |
1c27d3f3 | 1698 | Unit *target = NULL; |
bacbccb7 | 1699 | Job *default_unit_job; |
398ef8ba LP |
1700 | |
1701 | dbus_error_init(&error); | |
1702 | ||
fa0f4d8a | 1703 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1704 | |
e96d6be7 LP |
1705 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
1706 | if (r < 0) { | |
398ef8ba LP |
1707 | log_error("Failed to load default target: %s", bus_error(&error, r)); |
1708 | dbus_error_free(&error); | |
ac155bb8 MS |
1709 | } else if (target->load_state == UNIT_ERROR) |
1710 | log_error("Failed to load default target: %s", strerror(-target->load_error)); | |
1711 | else if (target->load_state == UNIT_MASKED) | |
6daf4f90 | 1712 | log_error("Default target masked."); |
27b14a22 | 1713 | |
ac155bb8 | 1714 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1715 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1716 | |
e96d6be7 LP |
1717 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1718 | if (r < 0) { | |
398ef8ba LP |
1719 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); |
1720 | dbus_error_free(&error); | |
a16e1123 | 1721 | goto finish; |
ac155bb8 MS |
1722 | } else if (target->load_state == UNIT_ERROR) { |
1723 | log_error("Failed to load rescue target: %s", strerror(-target->load_error)); | |
1c27d3f3 | 1724 | goto finish; |
ac155bb8 | 1725 | } else if (target->load_state == UNIT_MASKED) { |
6daf4f90 | 1726 | log_error("Rescue target masked."); |
00dc5d76 | 1727 | goto finish; |
a16e1123 LP |
1728 | } |
1729 | } | |
37d88da7 | 1730 | |
ac155bb8 | 1731 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1732 | |
fa0f4d8a | 1733 | if (arg_action == ACTION_TEST) { |
40d50879 | 1734 | printf("-> By units:\n"); |
a16e1123 LP |
1735 | manager_dump_units(m, stdout, "\t"); |
1736 | } | |
1737 | ||
95f1b47d | 1738 | r = manager_add_job(m, JOB_START, target, JOB_ISOLATE, false, &error, &default_unit_job); |
bacbccb7 | 1739 | if (r < 0) { |
398ef8ba LP |
1740 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1741 | dbus_error_free(&error); | |
37d88da7 LP |
1742 | goto finish; |
1743 | } | |
bacbccb7 | 1744 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1745 | |
07672f49 LP |
1746 | after_startup = now(CLOCK_MONOTONIC); |
1747 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1748 | "Loaded units and determined initial transaction in %s.", | |
1749 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup)); | |
1750 | ||
fa0f4d8a | 1751 | if (arg_action == ACTION_TEST) { |
40d50879 | 1752 | printf("-> By jobs:\n"); |
a16e1123 | 1753 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1754 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1755 | goto finish; |
1756 | } | |
e965d56d | 1757 | } |
d46de8a1 | 1758 | |
a16e1123 | 1759 | for (;;) { |
e96d6be7 LP |
1760 | r = manager_loop(m); |
1761 | if (r < 0) { | |
a16e1123 LP |
1762 | log_error("Failed to run mainloop: %s", strerror(-r)); |
1763 | goto finish; | |
1764 | } | |
11dd41ce | 1765 | |
a16e1123 | 1766 | switch (m->exit_code) { |
e965d56d | 1767 | |
a16e1123 | 1768 | case MANAGER_EXIT: |
22f4096c | 1769 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1770 | log_debug("Exit."); |
1771 | goto finish; | |
e965d56d | 1772 | |
a16e1123 | 1773 | case MANAGER_RELOAD: |
e015090f | 1774 | log_info("Reloading."); |
e96d6be7 LP |
1775 | r = manager_reload(m); |
1776 | if (r < 0) | |
a16e1123 LP |
1777 | log_error("Failed to reload: %s", strerror(-r)); |
1778 | break; | |
cea8e32e | 1779 | |
a16e1123 | 1780 | case MANAGER_REEXECUTE: |
664f88a7 | 1781 | |
6b78f9b4 | 1782 | if (prepare_reexecute(m, &serialization, &fds, true) < 0) |
a16e1123 | 1783 | goto finish; |
60918275 | 1784 | |
a16e1123 | 1785 | reexecute = true; |
e015090f | 1786 | log_notice("Reexecuting."); |
a16e1123 LP |
1787 | goto finish; |
1788 | ||
664f88a7 LP |
1789 | case MANAGER_SWITCH_ROOT: |
1790 | /* Steal the switch root parameters */ | |
41669317 | 1791 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1792 | switch_root_init = m->switch_root_init; |
1793 | m->switch_root = m->switch_root_init = NULL; | |
1794 | ||
1795 | if (!switch_root_init) | |
6b78f9b4 | 1796 | if (prepare_reexecute(m, &serialization, &fds, false) < 0) |
664f88a7 LP |
1797 | goto finish; |
1798 | ||
1799 | reexecute = true; | |
1800 | log_notice("Switching root."); | |
1801 | goto finish; | |
1802 | ||
b9080b03 FF |
1803 | case MANAGER_REBOOT: |
1804 | case MANAGER_POWEROFF: | |
1805 | case MANAGER_HALT: | |
1806 | case MANAGER_KEXEC: { | |
1807 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1808 | [MANAGER_REBOOT] = "reboot", | |
1809 | [MANAGER_POWEROFF] = "poweroff", | |
1810 | [MANAGER_HALT] = "halt", | |
1811 | [MANAGER_KEXEC] = "kexec" | |
1812 | }; | |
1813 | ||
1814 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1815 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1816 | |
1817 | log_notice("Shutting down."); | |
1818 | goto finish; | |
1819 | } | |
1820 | ||
a16e1123 LP |
1821 | default: |
1822 | assert_not_reached("Unknown exit code."); | |
1823 | } | |
1824 | } | |
f170852a | 1825 | |
60918275 LP |
1826 | finish: |
1827 | if (m) | |
1828 | manager_free(m); | |
1829 | ||
c93ff2e9 | 1830 | for (j = 0; j < RLIMIT_NLIMITS; j++) |
4096d6f5 | 1831 | free(arg_default_rlimit[j]); |
c93ff2e9 | 1832 | |
fa0f4d8a | 1833 | free(arg_default_unit); |
06d4c99a | 1834 | strv_free(arg_default_controllers); |
0c85a4f3 | 1835 | free_join_controllers(); |
b9cd2ec1 | 1836 | |
ea430986 | 1837 | dbus_shutdown(); |
b2bb3dbe LP |
1838 | label_finish(); |
1839 | ||
a16e1123 | 1840 | if (reexecute) { |
664f88a7 | 1841 | const char **args; |
e564a982 | 1842 | unsigned i, args_size; |
a16e1123 | 1843 | |
664f88a7 LP |
1844 | /* Close and disarm the watchdog, so that the new |
1845 | * instance can reinitialize it, but doesn't get | |
1846 | * rebooted while we do that */ | |
1847 | watchdog_close(true); | |
a16e1123 | 1848 | |
4096d6f5 LP |
1849 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1850 | * that the new systemd can pass the kernel default to | |
1851 | * its child processes */ | |
1852 | if (saved_rlimit_nofile.rlim_cur > 0) | |
1853 | setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); | |
1854 | ||
41669317 | 1855 | if (switch_root_dir) { |
cee530bb LP |
1856 | /* Kill all remaining processes from the |
1857 | * initrd, but don't wait for them, so that we | |
1858 | * can handle the SIGCHLD for them after | |
1859 | * deserializing. */ | |
1860 | broadcast_signal(SIGTERM, false); | |
bd3fa1d2 LP |
1861 | |
1862 | /* And switch root */ | |
41669317 LP |
1863 | r = switch_root(switch_root_dir); |
1864 | if (r < 0) | |
1865 | log_error("Failed to switch root, ignoring: %s", strerror(-r)); | |
1866 | } | |
a16e1123 | 1867 | |
d03bc1b8 | 1868 | args_size = MAX(6, argc+1); |
e564a982 | 1869 | args = newa(const char*, args_size); |
a16e1123 | 1870 | |
664f88a7 LP |
1871 | if (!switch_root_init) { |
1872 | char sfd[16]; | |
a16e1123 | 1873 | |
664f88a7 LP |
1874 | /* First try to spawn ourselves with the right |
1875 | * path, and with full serialization. We do | |
1876 | * this only if the user didn't specify an | |
1877 | * explicit init to spawn. */ | |
edb9aaa8 | 1878 | |
664f88a7 LP |
1879 | assert(serialization); |
1880 | assert(fds); | |
edb9aaa8 | 1881 | |
664f88a7 LP |
1882 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); |
1883 | char_array_0(sfd); | |
edb9aaa8 | 1884 | |
664f88a7 LP |
1885 | i = 0; |
1886 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1887 | if (switch_root_dir) |
2660882b | 1888 | args[i++] = "--switched-root"; |
67445f4e | 1889 | args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user"; |
664f88a7 LP |
1890 | args[i++] = "--deserialize"; |
1891 | args[i++] = sfd; | |
1892 | args[i++] = NULL; | |
edb9aaa8 | 1893 | |
e564a982 | 1894 | assert(i <= args_size); |
664f88a7 LP |
1895 | execv(args[0], (char* const*) args); |
1896 | } | |
6e98720f | 1897 | |
664f88a7 LP |
1898 | /* Try the fallback, if there is any, without any |
1899 | * serialization. We pass the original argv[] and | |
1900 | * envp[]. (Well, modulo the ordering changes due to | |
1901 | * getopt() in argv[], and some cleanups in envp[], | |
1902 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1903 | |
b8f83232 | 1904 | if (serialization) { |
664f88a7 | 1905 | fclose(serialization); |
b8f83232 LP |
1906 | serialization = NULL; |
1907 | } | |
a16e1123 | 1908 | |
b8f83232 | 1909 | if (fds) { |
664f88a7 | 1910 | fdset_free(fds); |
b8f83232 LP |
1911 | fds = NULL; |
1912 | } | |
a16e1123 | 1913 | |
a504223d HH |
1914 | /* Reopen the console */ |
1915 | make_console_stdio(); | |
1916 | ||
b8f83232 | 1917 | for (j = 1, i = 1; j < argc; j++) |
664f88a7 | 1918 | args[i++] = argv[j]; |
a16e1123 | 1919 | args[i++] = NULL; |
e564a982 | 1920 | assert(i <= args_size); |
b8f83232 LP |
1921 | |
1922 | if (switch_root_init) { | |
1923 | args[0] = switch_root_init; | |
1924 | execv(args[0], (char* const*) args); | |
1925 | log_warning("Failed to execute configured init, trying fallback: %m"); | |
1926 | } | |
1927 | ||
1928 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1929 | execv(args[0], (char* const*) args); |
1930 | ||
745e2fb7 KS |
1931 | if (errno == ENOENT) { |
1932 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 1933 | |
745e2fb7 KS |
1934 | args[0] = "/bin/sh"; |
1935 | args[1] = NULL; | |
1936 | execv(args[0], (char* const*) args); | |
1937 | log_error("Failed to execute /bin/sh, giving up: %m"); | |
1938 | } else | |
1939 | log_warning("Failed to execute /sbin/init, giving up: %m"); | |
a16e1123 LP |
1940 | } |
1941 | ||
1942 | if (serialization) | |
1943 | fclose(serialization); | |
1944 | ||
1945 | if (fds) | |
1946 | fdset_free(fds); | |
1947 | ||
b9080b03 FF |
1948 | if (shutdown_verb) { |
1949 | const char * command_line[] = { | |
1950 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1951 | shutdown_verb, | |
1952 | NULL | |
1953 | }; | |
d18f337c | 1954 | char **env_block; |
b9080b03 | 1955 | |
e96d6be7 | 1956 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
d18f337c LP |
1957 | char e[32]; |
1958 | ||
e96d6be7 LP |
1959 | /* If we reboot let's set the shutdown |
1960 | * watchdog and tell the shutdown binary to | |
1961 | * repeatedly ping it */ | |
1962 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
1963 | watchdog_close(false); | |
1964 | ||
1965 | /* Tell the binary how often to ping */ | |
1966 | snprintf(e, sizeof(e), "WATCHDOG_USEC=%llu", (unsigned long long) arg_shutdown_watchdog); | |
1967 | char_array_0(e); | |
d18f337c LP |
1968 | |
1969 | env_block = strv_append(environ, e); | |
1970 | } else { | |
1971 | env_block = strv_copy(environ); | |
e96d6be7 | 1972 | watchdog_close(true); |
d18f337c | 1973 | } |
e96d6be7 | 1974 | |
d18f337c LP |
1975 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
1976 | free(env_block); | |
b9080b03 FF |
1977 | log_error("Failed to execute shutdown binary, freezing: %m"); |
1978 | } | |
1979 | ||
c3b3c274 LP |
1980 | if (getpid() == 1) |
1981 | freeze(); | |
1982 | ||
60918275 LP |
1983 | return retval; |
1984 | } |