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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" |
b6e66135 | 70 | |
f170852a LP |
71 | static enum { |
72 | ACTION_RUN, | |
e965d56d | 73 | ACTION_HELP, |
9ba0bc4e | 74 | ACTION_VERSION, |
e537352b | 75 | ACTION_TEST, |
4288f619 LP |
76 | ACTION_DUMP_CONFIGURATION_ITEMS, |
77 | ACTION_DONE | |
fa0f4d8a | 78 | } arg_action = ACTION_RUN; |
f170852a | 79 | |
fa0f4d8a | 80 | static char *arg_default_unit = NULL; |
67445f4e | 81 | static SystemdRunningAs arg_running_as = _SYSTEMD_RUNNING_AS_INVALID; |
fa0f4d8a LP |
82 | |
83 | static bool arg_dump_core = true; | |
84 | static bool arg_crash_shell = false; | |
85 | static int arg_crash_chvt = -1; | |
86 | static bool arg_confirm_spawn = false; | |
9e58ff9c | 87 | static bool arg_show_status = true; |
bf4df7c3 | 88 | static bool arg_switched_root = false; |
06d4c99a | 89 | static char **arg_default_controllers = NULL; |
0c85a4f3 | 90 | static char ***arg_join_controllers = NULL; |
706343f4 | 91 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_JOURNAL; |
0a494f1f | 92 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
e96d6be7 LP |
93 | static usec_t arg_runtime_watchdog = 0; |
94 | static usec_t arg_shutdown_watchdog = 10 * USEC_PER_MINUTE; | |
c93ff2e9 | 95 | static struct rlimit *arg_default_rlimit[RLIMIT_NLIMITS] = {}; |
ec8927ca | 96 | static uint64_t arg_capability_bounding_set_drop = 0; |
aa0f64ac | 97 | static nsec_t arg_timer_slack_nsec = (nsec_t) -1; |
4fc935ca | 98 | |
a16e1123 | 99 | static FILE* serialization = NULL; |
80876c20 | 100 | |
6f5e3f35 LP |
101 | static void nop_handler(int sig) { |
102 | } | |
103 | ||
93a46b0b | 104 | _noreturn_ static void crash(int sig) { |
97c4f35c | 105 | |
fa0f4d8a | 106 | if (!arg_dump_core) |
582a507f | 107 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 108 | else { |
6f5e3f35 | 109 | struct sigaction sa; |
97c4f35c LP |
110 | pid_t pid; |
111 | ||
6f5e3f35 LP |
112 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
113 | zero(sa); | |
114 | sa.sa_handler = nop_handler; | |
115 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
116 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
117 | ||
97c4f35c | 118 | if ((pid = fork()) < 0) |
582a507f | 119 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
120 | |
121 | else if (pid == 0) { | |
97c4f35c LP |
122 | struct rlimit rl; |
123 | ||
124 | /* Enable default signal handler for core dump */ | |
125 | zero(sa); | |
126 | sa.sa_handler = SIG_DFL; | |
127 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
128 | ||
129 | /* Don't limit the core dump size */ | |
130 | zero(rl); | |
131 | rl.rlim_cur = RLIM_INFINITY; | |
132 | rl.rlim_max = RLIM_INFINITY; | |
133 | setrlimit(RLIMIT_CORE, &rl); | |
134 | ||
135 | /* Just to be sure... */ | |
136 | assert_se(chdir("/") == 0); | |
137 | ||
138 | /* Raise the signal again */ | |
139 | raise(sig); | |
140 | ||
141 | assert_not_reached("We shouldn't be here..."); | |
142 | _exit(1); | |
4fc935ca LP |
143 | |
144 | } else { | |
8e12a6ae LP |
145 | siginfo_t status; |
146 | int r; | |
4fc935ca LP |
147 | |
148 | /* Order things nicely. */ | |
8e12a6ae LP |
149 | if ((r = wait_for_terminate(pid, &status)) < 0) |
150 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); | |
151 | else if (status.si_code != CLD_DUMPED) | |
582a507f | 152 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 153 | else |
582a507f | 154 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
155 | } |
156 | } | |
157 | ||
fa0f4d8a LP |
158 | if (arg_crash_chvt) |
159 | chvt(arg_crash_chvt); | |
601f6a1e | 160 | |
fa0f4d8a | 161 | if (arg_crash_shell) { |
6f5e3f35 LP |
162 | struct sigaction sa; |
163 | pid_t pid; | |
8c43883a | 164 | |
4fc935ca LP |
165 | log_info("Executing crash shell in 10s..."); |
166 | sleep(10); | |
167 | ||
6f5e3f35 LP |
168 | /* Let the kernel reap children for us */ |
169 | zero(sa); | |
170 | sa.sa_handler = SIG_IGN; | |
171 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
172 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 173 | |
cd3bd60a LP |
174 | pid = fork(); |
175 | if (pid < 0) | |
14212119 | 176 | log_error("Failed to fork off crash shell: %m"); |
6f5e3f35 | 177 | else if (pid == 0) { |
cd3bd60a | 178 | make_console_stdio(); |
6f5e3f35 LP |
179 | execl("/bin/sh", "/bin/sh", NULL); |
180 | ||
14212119 | 181 | log_error("execl() failed: %m"); |
6f5e3f35 LP |
182 | _exit(1); |
183 | } | |
c99b188e | 184 | |
f8e08a77 | 185 | log_info("Successfully spawned crash shell as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
186 | } |
187 | ||
188 | log_info("Freezing execution."); | |
97c4f35c LP |
189 | freeze(); |
190 | } | |
191 | ||
192 | static void install_crash_handler(void) { | |
193 | struct sigaction sa; | |
194 | ||
195 | zero(sa); | |
196 | ||
197 | sa.sa_handler = crash; | |
198 | sa.sa_flags = SA_NODEFER; | |
199 | ||
1b91d3e8 | 200 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 201 | } |
f170852a | 202 | |
843d2643 LP |
203 | static int console_setup(bool do_reset) { |
204 | int tty_fd, r; | |
80876c20 | 205 | |
843d2643 LP |
206 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
207 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 208 | |
843d2643 LP |
209 | release_terminal(); |
210 | ||
211 | if (!do_reset) | |
212 | return 0; | |
80876c20 | 213 | |
512947d4 MS |
214 | tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC); |
215 | if (tty_fd < 0) { | |
843d2643 LP |
216 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); |
217 | return -tty_fd; | |
218 | } | |
80876c20 | 219 | |
512947d4 MS |
220 | /* We don't want to force text mode. |
221 | * plymouth may be showing pictures already from initrd. */ | |
222 | r = reset_terminal_fd(tty_fd, false); | |
223 | if (r < 0) | |
843d2643 LP |
224 | log_error("Failed to reset /dev/console: %s", strerror(-r)); |
225 | ||
226 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
227 | return r; |
228 | } | |
229 | ||
f170852a LP |
230 | static int set_default_unit(const char *u) { |
231 | char *c; | |
232 | ||
233 | assert(u); | |
234 | ||
bf4df7c3 LP |
235 | c = strdup(u); |
236 | if (!c) | |
f170852a LP |
237 | return -ENOMEM; |
238 | ||
fa0f4d8a LP |
239 | free(arg_default_unit); |
240 | arg_default_unit = c; | |
bf4df7c3 | 241 | |
f170852a LP |
242 | return 0; |
243 | } | |
244 | ||
245 | static int parse_proc_cmdline_word(const char *word) { | |
246 | ||
247 | static const char * const rlmap[] = { | |
ed370f5d | 248 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 249 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
250 | "single", SPECIAL_RESCUE_TARGET, |
251 | "-s", SPECIAL_RESCUE_TARGET, | |
252 | "s", SPECIAL_RESCUE_TARGET, | |
253 | "S", SPECIAL_RESCUE_TARGET, | |
254 | "1", SPECIAL_RESCUE_TARGET, | |
255 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
256 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
257 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
258 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
259 | }; |
260 | ||
5192bd19 LP |
261 | assert(word); |
262 | ||
bf4df7c3 LP |
263 | if (startswith(word, "systemd.unit=")) { |
264 | ||
265 | if (!in_initrd()) | |
266 | return set_default_unit(word + 13); | |
267 | ||
268 | } else if (startswith(word, "rd.systemd.unit=")) { | |
269 | ||
270 | if (in_initrd()) | |
271 | return set_default_unit(word + 16); | |
f170852a | 272 | |
bf4df7c3 | 273 | } else if (startswith(word, "systemd.log_target=")) { |
f170852a LP |
274 | |
275 | if (log_set_target_from_string(word + 19) < 0) | |
276 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
277 | ||
278 | } else if (startswith(word, "systemd.log_level=")) { | |
279 | ||
280 | if (log_set_max_level_from_string(word + 18) < 0) | |
281 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
282 | ||
bbe63281 LP |
283 | } else if (startswith(word, "systemd.log_color=")) { |
284 | ||
285 | if (log_show_color_from_string(word + 18) < 0) | |
286 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
287 | ||
288 | } else if (startswith(word, "systemd.log_location=")) { | |
289 | ||
290 | if (log_show_location_from_string(word + 21) < 0) | |
291 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
292 | ||
4fc935ca LP |
293 | } else if (startswith(word, "systemd.dump_core=")) { |
294 | int r; | |
295 | ||
296 | if ((r = parse_boolean(word + 18)) < 0) | |
509b6efb | 297 | log_warning("Failed to parse dump core switch %s. Ignoring.", word + 18); |
4fc935ca | 298 | else |
fa0f4d8a | 299 | arg_dump_core = r; |
4fc935ca LP |
300 | |
301 | } else if (startswith(word, "systemd.crash_shell=")) { | |
302 | int r; | |
303 | ||
304 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 305 | log_warning("Failed to parse crash shell switch %s. Ignoring.", word + 20); |
4fc935ca | 306 | else |
fa0f4d8a | 307 | arg_crash_shell = r; |
5e7ee61c LP |
308 | |
309 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
310 | int r; | |
311 | ||
312 | if ((r = parse_boolean(word + 22)) < 0) | |
509b6efb | 313 | log_warning("Failed to parse confirm spawn switch %s. Ignoring.", word + 22); |
5e7ee61c | 314 | else |
fa0f4d8a | 315 | arg_confirm_spawn = r; |
5e7ee61c | 316 | |
601f6a1e LP |
317 | } else if (startswith(word, "systemd.crash_chvt=")) { |
318 | int k; | |
319 | ||
320 | if (safe_atoi(word + 19, &k) < 0) | |
509b6efb | 321 | log_warning("Failed to parse crash chvt switch %s. Ignoring.", word + 19); |
601f6a1e | 322 | else |
fa0f4d8a | 323 | arg_crash_chvt = k; |
601f6a1e | 324 | |
9e58ff9c LP |
325 | } else if (startswith(word, "systemd.show_status=")) { |
326 | int r; | |
327 | ||
328 | if ((r = parse_boolean(word + 20)) < 0) | |
509b6efb | 329 | log_warning("Failed to parse show status switch %s. Ignoring.", word + 20); |
6e98720f | 330 | else |
9e58ff9c | 331 | arg_show_status = r; |
0a494f1f LP |
332 | } else if (startswith(word, "systemd.default_standard_output=")) { |
333 | int r; | |
334 | ||
335 | if ((r = exec_output_from_string(word + 32)) < 0) | |
509b6efb | 336 | log_warning("Failed to parse default standard output switch %s. Ignoring.", word + 32); |
0a494f1f LP |
337 | else |
338 | arg_default_std_output = r; | |
339 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
340 | int r; | |
341 | ||
342 | if ((r = exec_output_from_string(word + 31)) < 0) | |
509b6efb | 343 | log_warning("Failed to parse default standard error switch %s. Ignoring.", word + 31); |
0a494f1f LP |
344 | else |
345 | arg_default_std_error = r; | |
9e7c5357 | 346 | } else if (startswith(word, "systemd.setenv=")) { |
0c4025d1 LP |
347 | _cleanup_free_ char *cenv = NULL; |
348 | char *eq; | |
9e7c5357 WD |
349 | int r; |
350 | ||
351 | cenv = strdup(word + 15); | |
352 | if (!cenv) | |
353 | return -ENOMEM; | |
354 | ||
355 | eq = strchr(cenv, '='); | |
356 | if (!eq) { | |
0c4025d1 LP |
357 | if (!env_name_is_valid(cenv)) |
358 | log_warning("Environment variable name '%s' is not valid. Ignoring.", cenv); | |
359 | else { | |
360 | r = unsetenv(cenv); | |
361 | if (r < 0) | |
362 | log_warning("Unsetting environment variable '%s' failed, ignoring: %m", cenv); | |
363 | } | |
9e7c5357 | 364 | } else { |
0c4025d1 LP |
365 | if (!env_assignment_is_valid(cenv)) |
366 | log_warning("Environment variable assignment '%s' is not valid. Ignoring.", cenv); | |
367 | else { | |
368 | *eq = 0; | |
369 | r = setenv(cenv, eq + 1, 1); | |
370 | if (r < 0) | |
371 | log_warning("Setting environment variable '%s=%s' failed, ignoring: %m", cenv, eq + 1); | |
372 | } | |
9e7c5357 | 373 | } |
9e58ff9c | 374 | |
66a78c2b LP |
375 | } else if (startswith(word, "systemd.") || |
376 | (in_initrd() && startswith(word, "rd.systemd."))) { | |
4fc935ca LP |
377 | |
378 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
379 | ||
bbe63281 LP |
380 | log_info("Supported kernel switches:\n" |
381 | "systemd.unit=UNIT Default unit to start\n" | |
bf4df7c3 | 382 | "rd.systemd.unit=UNIT Default unit to start when run in initrd\n" |
bbe63281 | 383 | "systemd.dump_core=0|1 Dump core on crash\n" |
9e58ff9c | 384 | "systemd.crash_shell=0|1 Run shell on crash\n" |
bbe63281 | 385 | "systemd.crash_chvt=N Change to VT #N on crash\n" |
9e58ff9c | 386 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" |
6e98720f | 387 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" |
4cfa2c99 | 388 | "systemd.log_target=console|kmsg|journal|journal-or-kmsg|syslog|syslog-or-kmsg|null\n" |
6e98720f LP |
389 | " Log target\n" |
390 | "systemd.log_level=LEVEL Log level\n" | |
391 | "systemd.log_color=0|1 Highlight important log messages\n" | |
0a494f1f | 392 | "systemd.log_location=0|1 Include code location in log messages\n" |
706343f4 | 393 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" |
0a494f1f | 394 | " Set default log output for services\n" |
706343f4 | 395 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console|journal|journal+console\n" |
c66e7bc7 LP |
396 | " Set default log error output for services\n" |
397 | "systemd.setenv=ASSIGNMENT Set an environment variable for all spawned processes\n"); | |
4fc935ca | 398 | |
d081dffb | 399 | } else if (streq(word, "quiet")) |
6e98720f | 400 | arg_show_status = false; |
d081dffb | 401 | else if (!in_initrd()) { |
f170852a LP |
402 | unsigned i; |
403 | ||
404 | /* SysV compatibility */ | |
f170852a LP |
405 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
406 | if (streq(word, rlmap[i])) | |
407 | return set_default_unit(rlmap[i+1]); | |
408 | } | |
409 | ||
410 | return 0; | |
411 | } | |
412 | ||
f975e971 | 413 | static int config_parse_level2( |
487393e9 LP |
414 | const char *filename, |
415 | unsigned line, | |
416 | const char *section, | |
417 | const char *lvalue, | |
3731f1ea | 418 | int ltype, |
487393e9 LP |
419 | const char *rvalue, |
420 | void *data, | |
421 | void *userdata) { | |
422 | ||
423 | assert(filename); | |
424 | assert(lvalue); | |
425 | assert(rvalue); | |
426 | ||
427 | log_set_max_level_from_string(rvalue); | |
428 | return 0; | |
429 | } | |
430 | ||
431 | static int config_parse_target( | |
432 | const char *filename, | |
433 | unsigned line, | |
434 | const char *section, | |
435 | const char *lvalue, | |
3731f1ea | 436 | int ltype, |
487393e9 LP |
437 | const char *rvalue, |
438 | void *data, | |
439 | void *userdata) { | |
440 | ||
441 | assert(filename); | |
442 | assert(lvalue); | |
443 | assert(rvalue); | |
444 | ||
445 | log_set_target_from_string(rvalue); | |
446 | return 0; | |
447 | } | |
448 | ||
449 | static int config_parse_color( | |
450 | const char *filename, | |
451 | unsigned line, | |
452 | const char *section, | |
453 | const char *lvalue, | |
3731f1ea | 454 | int ltype, |
487393e9 LP |
455 | const char *rvalue, |
456 | void *data, | |
457 | void *userdata) { | |
458 | ||
459 | assert(filename); | |
460 | assert(lvalue); | |
461 | assert(rvalue); | |
462 | ||
463 | log_show_color_from_string(rvalue); | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static int config_parse_location( | |
468 | const char *filename, | |
469 | unsigned line, | |
470 | const char *section, | |
471 | const char *lvalue, | |
3731f1ea | 472 | int ltype, |
487393e9 LP |
473 | const char *rvalue, |
474 | void *data, | |
475 | void *userdata) { | |
476 | ||
477 | assert(filename); | |
478 | assert(lvalue); | |
479 | assert(rvalue); | |
480 | ||
481 | log_show_location_from_string(rvalue); | |
482 | return 0; | |
483 | } | |
484 | ||
f975e971 | 485 | static int config_parse_cpu_affinity2( |
487393e9 LP |
486 | const char *filename, |
487 | unsigned line, | |
488 | const char *section, | |
489 | const char *lvalue, | |
3731f1ea | 490 | int ltype, |
487393e9 LP |
491 | const char *rvalue, |
492 | void *data, | |
493 | void *userdata) { | |
494 | ||
495 | char *w; | |
496 | size_t l; | |
497 | char *state; | |
498 | cpu_set_t *c = NULL; | |
499 | unsigned ncpus = 0; | |
500 | ||
501 | assert(filename); | |
502 | assert(lvalue); | |
503 | assert(rvalue); | |
504 | ||
f60f22df | 505 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
506 | char *t; |
507 | int r; | |
508 | unsigned cpu; | |
509 | ||
510 | if (!(t = strndup(w, l))) | |
14212119 | 511 | return log_oom(); |
487393e9 LP |
512 | |
513 | r = safe_atou(t, &cpu); | |
514 | free(t); | |
515 | ||
516 | if (!c) | |
517 | if (!(c = cpu_set_malloc(&ncpus))) | |
14212119 | 518 | return log_oom(); |
487393e9 LP |
519 | |
520 | if (r < 0 || cpu >= ncpus) { | |
521 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
522 | CPU_FREE(c); | |
523 | return -EBADMSG; | |
524 | } | |
525 | ||
526 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
527 | } | |
528 | ||
529 | if (c) { | |
530 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
531 | log_warning("Failed to set CPU affinity: %m"); | |
532 | ||
533 | CPU_FREE(c); | |
534 | } | |
535 | ||
536 | return 0; | |
537 | } | |
538 | ||
0c85a4f3 LP |
539 | static void strv_free_free(char ***l) { |
540 | char ***i; | |
541 | ||
542 | if (!l) | |
543 | return; | |
544 | ||
545 | for (i = l; *i; i++) | |
546 | strv_free(*i); | |
547 | ||
548 | free(l); | |
549 | } | |
550 | ||
551 | static void free_join_controllers(void) { | |
552 | if (!arg_join_controllers) | |
553 | return; | |
554 | ||
555 | strv_free_free(arg_join_controllers); | |
556 | arg_join_controllers = NULL; | |
557 | } | |
558 | ||
559 | static int config_parse_join_controllers( | |
560 | const char *filename, | |
561 | unsigned line, | |
562 | const char *section, | |
563 | const char *lvalue, | |
564 | int ltype, | |
565 | const char *rvalue, | |
566 | void *data, | |
567 | void *userdata) { | |
568 | ||
569 | unsigned n = 0; | |
570 | char *state, *w; | |
571 | size_t length; | |
572 | ||
573 | assert(filename); | |
574 | assert(lvalue); | |
575 | assert(rvalue); | |
576 | ||
577 | free_join_controllers(); | |
578 | ||
579 | FOREACH_WORD_QUOTED(w, length, rvalue, state) { | |
580 | char *s, **l; | |
581 | ||
582 | s = strndup(w, length); | |
583 | if (!s) | |
14212119 | 584 | return log_oom(); |
0c85a4f3 LP |
585 | |
586 | l = strv_split(s, ","); | |
587 | free(s); | |
588 | ||
589 | strv_uniq(l); | |
590 | ||
591 | if (strv_length(l) <= 1) { | |
592 | strv_free(l); | |
593 | continue; | |
594 | } | |
595 | ||
596 | if (!arg_join_controllers) { | |
597 | arg_join_controllers = new(char**, 2); | |
598 | if (!arg_join_controllers) { | |
599 | strv_free(l); | |
14212119 | 600 | return log_oom(); |
0c85a4f3 LP |
601 | } |
602 | ||
603 | arg_join_controllers[0] = l; | |
604 | arg_join_controllers[1] = NULL; | |
605 | ||
606 | n = 1; | |
607 | } else { | |
608 | char ***a; | |
609 | char ***t; | |
610 | ||
611 | t = new0(char**, n+2); | |
612 | if (!t) { | |
613 | strv_free(l); | |
14212119 | 614 | return log_oom(); |
0c85a4f3 LP |
615 | } |
616 | ||
617 | n = 0; | |
618 | ||
619 | for (a = arg_join_controllers; *a; a++) { | |
620 | ||
621 | if (strv_overlap(*a, l)) { | |
622 | char **c; | |
623 | ||
624 | c = strv_merge(*a, l); | |
625 | if (!c) { | |
626 | strv_free(l); | |
627 | strv_free_free(t); | |
14212119 | 628 | return log_oom(); |
0c85a4f3 LP |
629 | } |
630 | ||
631 | strv_free(l); | |
632 | l = c; | |
633 | } else { | |
634 | char **c; | |
635 | ||
636 | c = strv_copy(*a); | |
637 | if (!c) { | |
638 | strv_free(l); | |
639 | strv_free_free(t); | |
14212119 | 640 | return log_oom(); |
0c85a4f3 LP |
641 | } |
642 | ||
643 | t[n++] = c; | |
644 | } | |
645 | } | |
646 | ||
647 | t[n++] = strv_uniq(l); | |
648 | ||
649 | strv_free_free(arg_join_controllers); | |
650 | arg_join_controllers = t; | |
651 | } | |
652 | } | |
653 | ||
654 | return 0; | |
655 | } | |
656 | ||
487393e9 LP |
657 | static int parse_config_file(void) { |
658 | ||
f975e971 LP |
659 | const ConfigTableItem items[] = { |
660 | { "Manager", "LogLevel", config_parse_level2, 0, NULL }, | |
661 | { "Manager", "LogTarget", config_parse_target, 0, NULL }, | |
662 | { "Manager", "LogColor", config_parse_color, 0, NULL }, | |
663 | { "Manager", "LogLocation", config_parse_location, 0, NULL }, | |
664 | { "Manager", "DumpCore", config_parse_bool, 0, &arg_dump_core }, | |
665 | { "Manager", "CrashShell", config_parse_bool, 0, &arg_crash_shell }, | |
666 | { "Manager", "ShowStatus", config_parse_bool, 0, &arg_show_status }, | |
f975e971 LP |
667 | { "Manager", "CrashChVT", config_parse_int, 0, &arg_crash_chvt }, |
668 | { "Manager", "CPUAffinity", config_parse_cpu_affinity2, 0, NULL }, | |
f975e971 LP |
669 | { "Manager", "DefaultControllers", config_parse_strv, 0, &arg_default_controllers }, |
670 | { "Manager", "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output }, | |
671 | { "Manager", "DefaultStandardError", config_parse_output, 0, &arg_default_std_error }, | |
0c85a4f3 | 672 | { "Manager", "JoinControllers", config_parse_join_controllers, 0, &arg_join_controllers }, |
e96d6be7 LP |
673 | { "Manager", "RuntimeWatchdogSec", config_parse_usec, 0, &arg_runtime_watchdog }, |
674 | { "Manager", "ShutdownWatchdogSec", config_parse_usec, 0, &arg_shutdown_watchdog }, | |
ec8927ca | 675 | { "Manager", "CapabilityBoundingSet", config_parse_bounding_set, 0, &arg_capability_bounding_set_drop }, |
aa0f64ac | 676 | { "Manager", "TimerSlackNSec", config_parse_nsec, 0, &arg_timer_slack_nsec }, |
c93ff2e9 FC |
677 | { "Manager", "DefaultLimitCPU", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CPU]}, |
678 | { "Manager", "DefaultLimitFSIZE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_FSIZE]}, | |
679 | { "Manager", "DefaultLimitDATA", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_DATA]}, | |
680 | { "Manager", "DefaultLimitSTACK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_STACK]}, | |
681 | { "Manager", "DefaultLimitCORE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_CORE]}, | |
682 | { "Manager", "DefaultLimitRSS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RSS]}, | |
683 | { "Manager", "DefaultLimitNOFILE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NOFILE]}, | |
684 | { "Manager", "DefaultLimitAS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_AS]}, | |
685 | { "Manager", "DefaultLimitNPROC", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NPROC]}, | |
686 | { "Manager", "DefaultLimitMEMLOCK", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MEMLOCK]}, | |
687 | { "Manager", "DefaultLimitLOCKS", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_LOCKS]}, | |
688 | { "Manager", "DefaultLimitSIGPENDING",config_parse_limit, 0, &arg_default_rlimit[RLIMIT_SIGPENDING]}, | |
689 | { "Manager", "DefaultLimitMSGQUEUE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_MSGQUEUE]}, | |
690 | { "Manager", "DefaultLimitNICE", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_NICE]}, | |
691 | { "Manager", "DefaultLimitRTPRIO", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTPRIO]}, | |
692 | { "Manager", "DefaultLimitRTTIME", config_parse_limit, 0, &arg_default_rlimit[RLIMIT_RTTIME]}, | |
f975e971 | 693 | { NULL, NULL, NULL, 0, NULL } |
487393e9 LP |
694 | }; |
695 | ||
696 | FILE *f; | |
697 | const char *fn; | |
698 | int r; | |
699 | ||
67445f4e | 700 | fn = arg_running_as == SYSTEMD_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE; |
f975e971 LP |
701 | f = fopen(fn, "re"); |
702 | if (!f) { | |
487393e9 LP |
703 | if (errno == ENOENT) |
704 | return 0; | |
705 | ||
706 | log_warning("Failed to open configuration file '%s': %m", fn); | |
707 | return 0; | |
708 | } | |
709 | ||
f975e971 LP |
710 | r = config_parse(fn, f, "Manager\0", config_item_table_lookup, (void*) items, false, NULL); |
711 | if (r < 0) | |
487393e9 LP |
712 | log_warning("Failed to parse configuration file: %s", strerror(-r)); |
713 | ||
714 | fclose(f); | |
715 | ||
716 | return 0; | |
717 | } | |
718 | ||
f170852a | 719 | static int parse_proc_cmdline(void) { |
52661efd | 720 | char *line, *w, *state; |
f170852a | 721 | int r; |
f170852a | 722 | size_t l; |
f170852a | 723 | |
b770165a LP |
724 | /* Don't read /proc/cmdline if we are in a container, since |
725 | * that is only relevant for the host system */ | |
726 | if (detect_container(NULL) > 0) | |
727 | return 0; | |
728 | ||
f170852a | 729 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { |
e364ad06 | 730 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
731 | return 0; |
732 | } | |
733 | ||
734 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
735 | char *word; | |
736 | ||
737 | if (!(word = strndup(w, l))) { | |
738 | r = -ENOMEM; | |
739 | goto finish; | |
740 | } | |
741 | ||
742 | r = parse_proc_cmdline_word(word); | |
14212119 SL |
743 | if (r < 0) { |
744 | log_error("Failed on cmdline argument %s: %s", word, strerror(-r)); | |
032f8164 | 745 | free(word); |
f170852a | 746 | goto finish; |
14212119 | 747 | } |
032f8164 LN |
748 | |
749 | free(word); | |
f170852a LP |
750 | } |
751 | ||
752 | r = 0; | |
753 | ||
754 | finish: | |
755 | free(line); | |
756 | return r; | |
757 | } | |
758 | ||
759 | static int parse_argv(int argc, char *argv[]) { | |
760 | ||
761 | enum { | |
762 | ARG_LOG_LEVEL = 0x100, | |
763 | ARG_LOG_TARGET, | |
bbe63281 LP |
764 | ARG_LOG_COLOR, |
765 | ARG_LOG_LOCATION, | |
2f198e2f | 766 | ARG_UNIT, |
edb9aaa8 | 767 | ARG_SYSTEM, |
af2d49f7 | 768 | ARG_USER, |
e537352b | 769 | ARG_TEST, |
9ba0bc4e | 770 | ARG_VERSION, |
80876c20 | 771 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
772 | ARG_DUMP_CORE, |
773 | ARG_CRASH_SHELL, | |
a16e1123 | 774 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 775 | ARG_SHOW_STATUS, |
4288f619 | 776 | ARG_DESERIALIZE, |
2660882b | 777 | ARG_SWITCHED_ROOT, |
0a494f1f LP |
778 | ARG_INTROSPECT, |
779 | ARG_DEFAULT_STD_OUTPUT, | |
780 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
781 | }; |
782 | ||
783 | static const struct option options[] = { | |
a16e1123 LP |
784 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
785 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
786 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
787 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 788 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 789 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 790 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
791 | { "test", no_argument, NULL, ARG_TEST }, |
792 | { "help", no_argument, NULL, 'h' }, | |
9ba0bc4e | 793 | { "version", no_argument, NULL, ARG_VERSION }, |
a16e1123 | 794 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, |
a5d87bf0 LP |
795 | { "dump-core", optional_argument, NULL, ARG_DUMP_CORE }, |
796 | { "crash-shell", optional_argument, NULL, ARG_CRASH_SHELL }, | |
797 | { "confirm-spawn", optional_argument, NULL, ARG_CONFIRM_SPAWN }, | |
6e98720f | 798 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
a16e1123 | 799 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
2660882b | 800 | { "switched-root", no_argument, NULL, ARG_SWITCHED_ROOT }, |
4288f619 | 801 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
0a494f1f LP |
802 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
803 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 804 | { NULL, 0, NULL, 0 } |
f170852a LP |
805 | }; |
806 | ||
807 | int c, r; | |
808 | ||
809 | assert(argc >= 1); | |
810 | assert(argv); | |
811 | ||
b770165a LP |
812 | if (getpid() == 1) |
813 | opterr = 0; | |
814 | ||
099663ff | 815 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
816 | |
817 | switch (c) { | |
818 | ||
819 | case ARG_LOG_LEVEL: | |
820 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
821 | log_error("Failed to parse log level %s.", optarg); | |
822 | return r; | |
823 | } | |
824 | ||
825 | break; | |
826 | ||
827 | case ARG_LOG_TARGET: | |
828 | ||
829 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
830 | log_error("Failed to parse log target %s.", optarg); | |
831 | return r; | |
832 | } | |
833 | ||
834 | break; | |
835 | ||
bbe63281 LP |
836 | case ARG_LOG_COLOR: |
837 | ||
d0b170c8 LP |
838 | if (optarg) { |
839 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
840 | log_error("Failed to parse log color setting %s.", optarg); | |
841 | return r; | |
842 | } | |
843 | } else | |
844 | log_show_color(true); | |
bbe63281 LP |
845 | |
846 | break; | |
847 | ||
848 | case ARG_LOG_LOCATION: | |
849 | ||
d0b170c8 LP |
850 | if (optarg) { |
851 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
852 | log_error("Failed to parse log location setting %s.", optarg); | |
853 | return r; | |
854 | } | |
855 | } else | |
856 | log_show_location(true); | |
bbe63281 LP |
857 | |
858 | break; | |
859 | ||
0a494f1f LP |
860 | case ARG_DEFAULT_STD_OUTPUT: |
861 | ||
862 | if ((r = exec_output_from_string(optarg)) < 0) { | |
863 | log_error("Failed to parse default standard output setting %s.", optarg); | |
864 | return r; | |
865 | } else | |
866 | arg_default_std_output = r; | |
867 | break; | |
868 | ||
869 | case ARG_DEFAULT_STD_ERROR: | |
870 | ||
871 | if ((r = exec_output_from_string(optarg)) < 0) { | |
872 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
873 | return r; | |
874 | } else | |
875 | arg_default_std_error = r; | |
876 | break; | |
877 | ||
2f198e2f | 878 | case ARG_UNIT: |
f170852a LP |
879 | |
880 | if ((r = set_default_unit(optarg)) < 0) { | |
881 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
882 | return r; | |
883 | } | |
884 | ||
885 | break; | |
886 | ||
edb9aaa8 | 887 | case ARG_SYSTEM: |
67445f4e | 888 | arg_running_as = SYSTEMD_SYSTEM; |
edb9aaa8 | 889 | break; |
a5dab5ce | 890 | |
af2d49f7 | 891 | case ARG_USER: |
67445f4e | 892 | arg_running_as = SYSTEMD_USER; |
a5dab5ce | 893 | break; |
a5dab5ce | 894 | |
e965d56d | 895 | case ARG_TEST: |
fa0f4d8a | 896 | arg_action = ACTION_TEST; |
e965d56d LP |
897 | break; |
898 | ||
9ba0bc4e ZJS |
899 | case ARG_VERSION: |
900 | arg_action = ACTION_VERSION; | |
901 | break; | |
902 | ||
e537352b | 903 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 904 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
905 | break; |
906 | ||
9e58ff9c | 907 | case ARG_DUMP_CORE: |
a5d87bf0 LP |
908 | r = optarg ? parse_boolean(optarg) : 1; |
909 | if (r < 0) { | |
910 | log_error("Failed to parse dump core boolean %s.", optarg); | |
911 | return r; | |
912 | } | |
913 | arg_dump_core = r; | |
9e58ff9c LP |
914 | break; |
915 | ||
916 | case ARG_CRASH_SHELL: | |
a5d87bf0 LP |
917 | r = optarg ? parse_boolean(optarg) : 1; |
918 | if (r < 0) { | |
919 | log_error("Failed to parse crash shell boolean %s.", optarg); | |
920 | return r; | |
921 | } | |
922 | arg_crash_shell = r; | |
9e58ff9c LP |
923 | break; |
924 | ||
80876c20 | 925 | case ARG_CONFIRM_SPAWN: |
a5d87bf0 LP |
926 | r = optarg ? parse_boolean(optarg) : 1; |
927 | if (r < 0) { | |
928 | log_error("Failed to parse confirm spawn boolean %s.", optarg); | |
929 | return r; | |
930 | } | |
931 | arg_confirm_spawn = r; | |
80876c20 LP |
932 | break; |
933 | ||
9e58ff9c | 934 | case ARG_SHOW_STATUS: |
a5d87bf0 LP |
935 | r = optarg ? parse_boolean(optarg) : 1; |
936 | if (r < 0) { | |
937 | log_error("Failed to parse show status boolean %s.", optarg); | |
938 | return r; | |
939 | } | |
940 | arg_show_status = r; | |
6e98720f | 941 | break; |
a5d87bf0 | 942 | |
a16e1123 LP |
943 | case ARG_DESERIALIZE: { |
944 | int fd; | |
945 | FILE *f; | |
946 | ||
01e10de3 LP |
947 | r = safe_atoi(optarg, &fd); |
948 | if (r < 0 || fd < 0) { | |
a16e1123 | 949 | log_error("Failed to parse deserialize option %s.", optarg); |
01e10de3 | 950 | return r < 0 ? r : -EINVAL; |
a16e1123 LP |
951 | } |
952 | ||
01e10de3 LP |
953 | fd_cloexec(fd, true); |
954 | ||
955 | f = fdopen(fd, "r"); | |
956 | if (!f) { | |
a16e1123 | 957 | log_error("Failed to open serialization fd: %m"); |
01e10de3 | 958 | return -errno; |
a16e1123 LP |
959 | } |
960 | ||
961 | if (serialization) | |
962 | fclose(serialization); | |
963 | ||
964 | serialization = f; | |
965 | ||
966 | break; | |
967 | } | |
968 | ||
2660882b | 969 | case ARG_SWITCHED_ROOT: |
bf4df7c3 | 970 | arg_switched_root = true; |
d03bc1b8 HH |
971 | break; |
972 | ||
4288f619 LP |
973 | case ARG_INTROSPECT: { |
974 | const char * const * i = NULL; | |
975 | ||
976 | for (i = bus_interface_table; *i; i += 2) | |
977 | if (!optarg || streq(i[0], optarg)) { | |
978 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
979 | "<node>\n", stdout); | |
980 | fputs(i[1], stdout); | |
981 | fputs("</node>\n", stdout); | |
982 | ||
983 | if (optarg) | |
984 | break; | |
985 | } | |
986 | ||
987 | if (!i[0] && optarg) | |
988 | log_error("Unknown interface %s.", optarg); | |
989 | ||
fa0f4d8a | 990 | arg_action = ACTION_DONE; |
4288f619 LP |
991 | break; |
992 | } | |
993 | ||
f170852a | 994 | case 'h': |
fa0f4d8a | 995 | arg_action = ACTION_HELP; |
f170852a LP |
996 | break; |
997 | ||
1d2e23ab LP |
998 | case 'D': |
999 | log_set_max_level(LOG_DEBUG); | |
1000 | break; | |
1001 | ||
099663ff LP |
1002 | case 'b': |
1003 | case 's': | |
1004 | case 'z': | |
1005 | /* Just to eat away the sysvinit kernel | |
1006 | * cmdline args without getopt() error | |
1007 | * messages that we'll parse in | |
1008 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 1009 | |
099663ff | 1010 | case '?': |
f170852a | 1011 | default: |
099663ff LP |
1012 | if (getpid() != 1) { |
1013 | log_error("Unknown option code %c", c); | |
1014 | return -EINVAL; | |
1015 | } | |
1016 | ||
1017 | break; | |
f170852a LP |
1018 | } |
1019 | ||
d821e6d6 LP |
1020 | if (optind < argc && getpid() != 1) { |
1021 | /* Hmm, when we aren't run as init system | |
1022 | * let's complain about excess arguments */ | |
1023 | ||
1024 | log_error("Excess arguments."); | |
1025 | return -EINVAL; | |
1026 | } | |
1027 | ||
1028 | if (detect_container(NULL) > 0) { | |
1029 | char **a; | |
1030 | ||
1031 | /* All /proc/cmdline arguments the kernel didn't | |
1032 | * understand it passed to us. We're not really | |
1033 | * interested in that usually since /proc/cmdline is | |
1034 | * more interesting and complete. With one exception: | |
1035 | * if we are run in a container /proc/cmdline is not | |
1036 | * relevant for the container, hence we rely on argv[] | |
1037 | * instead. */ | |
1038 | ||
1039 | for (a = argv; a < argv + argc; a++) | |
14212119 SL |
1040 | if ((r = parse_proc_cmdline_word(*a)) < 0) { |
1041 | log_error("Failed on cmdline argument %s: %s", *a, strerror(-r)); | |
d821e6d6 | 1042 | return r; |
14212119 | 1043 | } |
51f0e189 LP |
1044 | } |
1045 | ||
f170852a LP |
1046 | return 0; |
1047 | } | |
1048 | ||
1049 | static int help(void) { | |
1050 | ||
2e33c433 | 1051 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 1052 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 1053 | " -h --help Show this help\n" |
e537352b | 1054 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 1055 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 1056 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 1057 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 1058 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 1059 | " --user Run a user instance\n" |
a5d87bf0 LP |
1060 | " --dump-core[=0|1] Dump core on crash\n" |
1061 | " --crash-shell[=0|1] Run shell on crash\n" | |
1062 | " --confirm-spawn[=0|1] Ask for confirmation when spawning processes\n" | |
6e98720f | 1063 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
4cfa2c99 | 1064 | " --log-target=TARGET Set log target (console, journal, syslog, kmsg, journal-or-kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 1065 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 1066 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
1067 | " --log-location[=0|1] Include code location in log messages\n" |
1068 | " --default-standard-output= Set default standard output for services\n" | |
1069 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 1070 | program_invocation_short_name); |
f170852a LP |
1071 | |
1072 | return 0; | |
1073 | } | |
1074 | ||
9ba0bc4e ZJS |
1075 | static int version(void) { |
1076 | puts(PACKAGE_STRING); | |
9ba0bc4e ZJS |
1077 | puts(SYSTEMD_FEATURES); |
1078 | ||
1079 | return 0; | |
1080 | } | |
1081 | ||
6b78f9b4 | 1082 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds, bool serialize_jobs) { |
a16e1123 LP |
1083 | FILE *f = NULL; |
1084 | FDSet *fds = NULL; | |
1085 | int r; | |
1086 | ||
1087 | assert(m); | |
1088 | assert(_f); | |
1089 | assert(_fds); | |
1090 | ||
a7556052 LP |
1091 | /* Make sure nothing is really destructed when we shut down */ |
1092 | m->n_reloading ++; | |
1093 | ||
6b78f9b4 LP |
1094 | r = manager_open_serialization(m, &f); |
1095 | if (r < 0) { | |
35b8ca3a | 1096 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
1097 | goto fail; |
1098 | } | |
1099 | ||
6b78f9b4 LP |
1100 | fds = fdset_new(); |
1101 | if (!fds) { | |
a16e1123 LP |
1102 | r = -ENOMEM; |
1103 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1104 | goto fail; | |
1105 | } | |
1106 | ||
6b78f9b4 LP |
1107 | r = manager_serialize(m, f, fds, serialize_jobs); |
1108 | if (r < 0) { | |
a16e1123 LP |
1109 | log_error("Failed to serialize state: %s", strerror(-r)); |
1110 | goto fail; | |
1111 | } | |
1112 | ||
1113 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
1114 | log_error("Failed to rewind serialization fd: %m"); | |
1115 | goto fail; | |
1116 | } | |
1117 | ||
6b78f9b4 LP |
1118 | r = fd_cloexec(fileno(f), false); |
1119 | if (r < 0) { | |
a16e1123 LP |
1120 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); |
1121 | goto fail; | |
1122 | } | |
1123 | ||
6b78f9b4 LP |
1124 | r = fdset_cloexec(fds, false); |
1125 | if (r < 0) { | |
a16e1123 LP |
1126 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); |
1127 | goto fail; | |
1128 | } | |
1129 | ||
1130 | *_f = f; | |
1131 | *_fds = fds; | |
1132 | ||
1133 | return 0; | |
1134 | ||
1135 | fail: | |
1136 | fdset_free(fds); | |
1137 | ||
1138 | if (f) | |
1139 | fclose(f); | |
1140 | ||
1141 | return r; | |
1142 | } | |
1143 | ||
4096d6f5 LP |
1144 | static int bump_rlimit_nofile(struct rlimit *saved_rlimit) { |
1145 | struct rlimit nl; | |
1146 | int r; | |
1147 | ||
1148 | assert(saved_rlimit); | |
1149 | ||
1150 | /* Save the original RLIMIT_NOFILE so that we can reset it | |
1151 | * later when transitioning from the initrd to the main | |
1152 | * systemd or suchlike. */ | |
1153 | if (getrlimit(RLIMIT_NOFILE, saved_rlimit) < 0) { | |
1154 | log_error("Reading RLIMIT_NOFILE failed: %m"); | |
1155 | return -errno; | |
1156 | } | |
1157 | ||
1158 | /* Make sure forked processes get the default kernel setting */ | |
1159 | if (!arg_default_rlimit[RLIMIT_NOFILE]) { | |
1160 | struct rlimit *rl; | |
1161 | ||
1162 | rl = newdup(struct rlimit, saved_rlimit, 1); | |
1163 | if (!rl) | |
1164 | return log_oom(); | |
1165 | ||
1166 | arg_default_rlimit[RLIMIT_NOFILE] = rl; | |
1167 | } | |
1168 | ||
1169 | /* Bump up the resource limit for ourselves substantially */ | |
1170 | nl.rlim_cur = nl.rlim_max = 64*1024; | |
1171 | r = setrlimit_closest(RLIMIT_NOFILE, &nl); | |
1172 | if (r < 0) { | |
1173 | log_error("Setting RLIMIT_NOFILE failed: %s", strerror(-r)); | |
1174 | return r; | |
1175 | } | |
1176 | ||
1177 | return 0; | |
1178 | } | |
1179 | ||
e9ddabc2 LP |
1180 | static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { |
1181 | const char *e; | |
1182 | unsigned long long a, b; | |
1183 | ||
1184 | assert(t); | |
1185 | ||
966a5d37 LP |
1186 | e = getenv("RD_TIMESTAMP"); |
1187 | if (!e) | |
e9ddabc2 LP |
1188 | return NULL; |
1189 | ||
1190 | if (sscanf(e, "%llu %llu", &a, &b) != 2) | |
1191 | return NULL; | |
1192 | ||
1193 | t->realtime = (usec_t) a; | |
1194 | t->monotonic = (usec_t) b; | |
1195 | ||
1196 | return t; | |
1197 | } | |
1198 | ||
6ee5bbf8 LP |
1199 | static void test_mtab(void) { |
1200 | char *p; | |
1201 | ||
80758717 LP |
1202 | /* Check that /etc/mtab is a symlink */ |
1203 | ||
6ee5bbf8 LP |
1204 | if (readlink_malloc("/etc/mtab", &p) >= 0) { |
1205 | bool b; | |
1206 | ||
ed86ebc4 | 1207 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
1208 | free(p); |
1209 | ||
1210 | if (b) | |
1211 | return; | |
1212 | } | |
1213 | ||
80758717 LP |
1214 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
1215 | "This is not supported anymore. " | |
1216 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
1217 | } | |
1218 | ||
1219 | static void test_usr(void) { | |
80758717 | 1220 | |
ed1c99fc | 1221 | /* Check that /usr is not a separate fs */ |
80758717 | 1222 | |
871c44a7 LP |
1223 | if (dir_is_empty("/usr") <= 0) |
1224 | return; | |
1225 | ||
2376ce13 | 1226 | log_warning("/usr appears to be on its own filesytem and is not already mounted. This is not a supported setup. " |
871c44a7 LP |
1227 | "Some things will probably break (sometimes even silently) in mysterious ways. " |
1228 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
1229 | } | |
1230 | ||
1231 | static void test_cgroups(void) { | |
1232 | ||
1233 | if (access("/proc/cgroups", F_OK) >= 0) | |
1234 | return; | |
1235 | ||
1236 | log_warning("CONFIG_CGROUPS was not set when your kernel was compiled. " | |
1237 | "Systems without control groups are not supported. " | |
1238 | "We will now sleep for 10s, and then continue boot-up. " | |
1239 | "Expect breakage and please do not file bugs. " | |
966a5d37 LP |
1240 | "Instead fix your kernel and enable CONFIG_CGROUPS. " |
1241 | "Consult http://0pointer.de/blog/projects/cgroups-vs-cgroups.html for more information."); | |
871c44a7 LP |
1242 | |
1243 | sleep(10); | |
6ee5bbf8 LP |
1244 | } |
1245 | ||
a07fdfa3 LP |
1246 | static int initialize_join_controllers(void) { |
1247 | /* By default, mount "cpu" + "cpuacct" together, and "net_cls" | |
1248 | * + "net_prio". We'd like to add "cpuset" to the mix, but | |
1249 | * "cpuset" does't really work for groups with no initialized | |
1250 | * attributes. */ | |
1251 | ||
1252 | arg_join_controllers = new(char**, 3); | |
1253 | if (!arg_join_controllers) | |
1254 | return -ENOMEM; | |
1255 | ||
1256 | arg_join_controllers[0] = strv_new("cpu", "cpuacct", NULL); | |
1257 | if (!arg_join_controllers[0]) | |
1258 | return -ENOMEM; | |
1259 | ||
1260 | arg_join_controllers[1] = strv_new("net_cls", "net_prio", NULL); | |
1261 | if (!arg_join_controllers[1]) | |
1262 | return -ENOMEM; | |
1263 | ||
1264 | arg_join_controllers[2] = NULL; | |
1265 | return 0; | |
1266 | } | |
1267 | ||
60918275 LP |
1268 | int main(int argc, char *argv[]) { |
1269 | Manager *m = NULL; | |
22f4096c | 1270 | int r, retval = EXIT_FAILURE; |
9d76d730 LP |
1271 | usec_t before_startup, after_startup; |
1272 | char timespan[FORMAT_TIMESPAN_MAX]; | |
a16e1123 LP |
1273 | FDSet *fds = NULL; |
1274 | bool reexecute = false; | |
b9080b03 | 1275 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1276 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
5d6b1584 | 1277 | static char systemd[] = "systemd"; |
2660882b | 1278 | bool skip_setup = false; |
0b3325e7 LP |
1279 | int j; |
1280 | bool loaded_policy = false; | |
e96d6be7 | 1281 | bool arm_reboot_watchdog = false; |
bf4df7c3 | 1282 | bool queue_default_job = false; |
41669317 | 1283 | char *switch_root_dir = NULL, *switch_root_init = NULL; |
4096d6f5 | 1284 | static struct rlimit saved_rlimit_nofile = { 0, 0 }; |
27b14a22 | 1285 | |
058dc6f3 | 1286 | #ifdef HAVE_SYSV_COMPAT |
2cb1a60d | 1287 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1288 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1289 | * calling init as a user is identical to telinit. */ |
1290 | ||
1291 | errno = -ENOENT; | |
1292 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1293 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1294 | return 1; | |
1295 | } | |
058dc6f3 | 1296 | #endif |
2cb1a60d | 1297 | |
0b3325e7 LP |
1298 | /* Determine if this is a reexecution or normal bootup. We do |
1299 | * the full command line parsing much later, so let's just | |
1300 | * have a quick peek here. */ | |
0b3325e7 LP |
1301 | for (j = 1; j < argc; j++) |
1302 | if (streq(argv[j], "--deserialize")) { | |
2660882b | 1303 | skip_setup = true; |
7aaa27f2 | 1304 | break; |
0b3325e7 LP |
1305 | } |
1306 | ||
2660882b LP |
1307 | /* If we have switched root, do all the special setup |
1308 | * things */ | |
d03bc1b8 | 1309 | for (j = 1; j < argc; j++) |
2660882b LP |
1310 | if (streq(argv[j], "--switched-root")) { |
1311 | skip_setup = false; | |
d03bc1b8 HH |
1312 | break; |
1313 | } | |
1314 | ||
f3b6a3ed LP |
1315 | /* If we get started via the /sbin/init symlink then we are |
1316 | called 'init'. After a subsequent reexecution we are then | |
1317 | called 'systemd'. That is confusing, hence let's call us | |
1318 | systemd right-away. */ | |
f3b6a3ed LP |
1319 | program_invocation_short_name = systemd; |
1320 | prctl(PR_SET_NAME, systemd); | |
5d6b1584 | 1321 | |
9a0e6896 LP |
1322 | saved_argv = argv; |
1323 | saved_argc = argc; | |
f3b6a3ed | 1324 | |
2cc59dbf | 1325 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1326 | |
a866073d LP |
1327 | if (getpid() == 1 && detect_container(NULL) <= 0) { |
1328 | ||
1329 | /* Running outside of a container as PID 1 */ | |
67445f4e | 1330 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1331 | make_null_stdio(); |
1332 | log_set_target(LOG_TARGET_KMSG); | |
1333 | log_open(); | |
1334 | ||
c3ba6250 HH |
1335 | if (in_initrd()) { |
1336 | char *rd_timestamp = NULL; | |
1337 | ||
1338 | dual_timestamp_get(&initrd_timestamp); | |
1339 | asprintf(&rd_timestamp, "%llu %llu", | |
1340 | (unsigned long long) initrd_timestamp.realtime, | |
1341 | (unsigned long long) initrd_timestamp.monotonic); | |
1342 | if (rd_timestamp) { | |
1343 | setenv("RD_TIMESTAMP", rd_timestamp, 1); | |
1344 | free(rd_timestamp); | |
1345 | } | |
1346 | } | |
1347 | ||
2660882b | 1348 | if (!skip_setup) { |
0b3325e7 LP |
1349 | if (selinux_setup(&loaded_policy) < 0) |
1350 | goto finish; | |
81611586 RS |
1351 | if (ima_setup() < 0) |
1352 | goto finish; | |
1353 | } | |
0b3325e7 | 1354 | |
e9a5ef7c | 1355 | if (label_init(NULL) < 0) |
0ff4cdd9 | 1356 | goto finish; |
7948c4df | 1357 | |
72edcff5 | 1358 | if (!skip_setup) { |
0b3325e7 LP |
1359 | if (hwclock_is_localtime() > 0) { |
1360 | int min; | |
7948c4df | 1361 | |
72edcff5 KS |
1362 | /* The first-time call to settimeofday() does a time warp in the kernel */ |
1363 | r = hwclock_set_timezone(&min); | |
0b3325e7 LP |
1364 | if (r < 0) |
1365 | log_error("Failed to apply local time delta, ignoring: %s", strerror(-r)); | |
1366 | else | |
1367 | log_info("RTC configured in localtime, applying delta of %i minutes to system time.", min); | |
19e65613 KS |
1368 | } else if (!in_initrd()) { |
1369 | /* | |
1370 | * Do dummy first-time call to seal the kernel's time warp magic | |
1371 | * | |
1372 | * Do not call this this from inside the initrd. The initrd might not | |
1373 | * carry /etc/adjtime with LOCAL, but the real system could be set up | |
1374 | * that way. In such case, we need to delay the time-warp or the sealing | |
1375 | * until we reach the real system. | |
1376 | */ | |
72edcff5 | 1377 | hwclock_reset_timezone(); |
871e5809 | 1378 | |
72edcff5 KS |
1379 | /* Tell the kernel our time zone */ |
1380 | r = hwclock_set_timezone(NULL); | |
1381 | if (r < 0) | |
1382 | log_error("Failed to set the kernel's time zone, ignoring: %s", strerror(-r)); | |
1383 | } | |
1384 | } | |
a866073d LP |
1385 | |
1386 | /* Set the default for later on, but don't actually | |
1387 | * open the logs like this for now. Note that if we | |
1388 | * are transitioning from the initrd there might still | |
1389 | * be journal fd open, and we shouldn't attempt | |
1390 | * opening that before we parsed /proc/cmdline which | |
1391 | * might redirect output elsewhere. */ | |
1392 | log_set_target(LOG_TARGET_JOURNAL_OR_KMSG); | |
1393 | ||
1394 | } else if (getpid() == 1) { | |
1395 | ||
1396 | /* Running inside a container, as PID 1 */ | |
67445f4e | 1397 | arg_running_as = SYSTEMD_SYSTEM; |
a866073d LP |
1398 | log_set_target(LOG_TARGET_CONSOLE); |
1399 | log_open(); | |
1400 | ||
1401 | /* For the later on, see above... */ | |
1402 | log_set_target(LOG_TARGET_JOURNAL); | |
1403 | ||
bbe63281 | 1404 | } else { |
a866073d LP |
1405 | |
1406 | /* Running as user instance */ | |
67445f4e | 1407 | arg_running_as = SYSTEMD_USER; |
eeecf6e6 | 1408 | log_set_target(LOG_TARGET_AUTO); |
871e5809 | 1409 | log_open(); |
bbe63281 | 1410 | } |
a5dab5ce | 1411 | |
0c85a4f3 | 1412 | /* Initialize default unit */ |
6afa301b LP |
1413 | r = set_default_unit(SPECIAL_DEFAULT_TARGET); |
1414 | if (r < 0) { | |
14212119 | 1415 | log_error("Failed to set default unit %s: %s", SPECIAL_DEFAULT_TARGET, strerror(-r)); |
f170852a | 1416 | goto finish; |
14212119 | 1417 | } |
60918275 | 1418 | |
a07fdfa3 LP |
1419 | r = initialize_join_controllers(); |
1420 | if (r < 0) | |
0c85a4f3 LP |
1421 | goto finish; |
1422 | ||
f170852a LP |
1423 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1424 | * /proc/$PID/fd is available. */ | |
0c85a4f3 LP |
1425 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1426 | r = mount_setup(loaded_policy); | |
1427 | if (r < 0) | |
8efe3c01 | 1428 | goto finish; |
0c85a4f3 | 1429 | } |
4ade7963 LP |
1430 | |
1431 | /* Reset all signal handlers. */ | |
1432 | assert_se(reset_all_signal_handlers() == 0); | |
1433 | ||
078e4539 | 1434 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 1435 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1436 | |
487393e9 LP |
1437 | if (parse_config_file() < 0) |
1438 | goto finish; | |
1439 | ||
67445f4e | 1440 | if (arg_running_as == SYSTEMD_SYSTEM) |
a5dab5ce LP |
1441 | if (parse_proc_cmdline() < 0) |
1442 | goto finish; | |
f170852a LP |
1443 | |
1444 | log_parse_environment(); | |
1445 | ||
1446 | if (parse_argv(argc, argv) < 0) | |
1447 | goto finish; | |
1448 | ||
6bae23a0 TB |
1449 | if (arg_action == ACTION_TEST && |
1450 | geteuid() == 0) { | |
b5c6cf87 LP |
1451 | log_error("Don't run test mode as root."); |
1452 | goto finish; | |
1453 | } | |
1454 | ||
6bae23a0 TB |
1455 | if (arg_running_as == SYSTEMD_USER && |
1456 | arg_action == ACTION_RUN && | |
1457 | sd_booted() <= 0) { | |
1458 | log_error("Trying to run as user instance, but the system has not been booted with systemd."); | |
1459 | goto finish; | |
1460 | } | |
1461 | ||
67445f4e | 1462 | if (arg_running_as == SYSTEMD_SYSTEM && |
fe783b03 LP |
1463 | arg_action == ACTION_RUN && |
1464 | running_in_chroot() > 0) { | |
1465 | log_error("Cannot be run in a chroot() environment."); | |
1466 | goto finish; | |
1467 | } | |
1468 | ||
fa0f4d8a | 1469 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1470 | retval = help(); |
1471 | goto finish; | |
9ba0bc4e ZJS |
1472 | } else if (arg_action == ACTION_VERSION) { |
1473 | retval = version(); | |
1474 | goto finish; | |
fa0f4d8a | 1475 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1476 | unit_dump_config_items(stdout); |
22f4096c | 1477 | retval = EXIT_SUCCESS; |
e537352b | 1478 | goto finish; |
fa0f4d8a | 1479 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1480 | retval = EXIT_SUCCESS; |
4288f619 | 1481 | goto finish; |
f170852a LP |
1482 | } |
1483 | ||
fa0f4d8a | 1484 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1485 | |
871e5809 LP |
1486 | /* Close logging fds, in order not to confuse fdset below */ |
1487 | log_close(); | |
1488 | ||
a16e1123 | 1489 | /* Remember open file descriptors for later deserialization */ |
01e10de3 LP |
1490 | r = fdset_new_fill(&fds); |
1491 | if (r < 0) { | |
1492 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1493 | goto finish; | |
1494 | } else | |
1495 | fdset_cloexec(fds, true); | |
a16e1123 | 1496 | |
01e10de3 | 1497 | if (serialization) |
a16e1123 | 1498 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); |
a16e1123 | 1499 | |
09082a94 | 1500 | /* Set up PATH unless it is already set */ |
e537352b | 1501 | setenv("PATH", |
2c6db6fb | 1502 | #ifdef HAVE_SPLIT_USR |
e537352b | 1503 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", |
2c6db6fb LP |
1504 | #else |
1505 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin", | |
1506 | #endif | |
67445f4e | 1507 | arg_running_as == SYSTEMD_SYSTEM); |
09082a94 | 1508 | |
67445f4e | 1509 | if (arg_running_as == SYSTEMD_SYSTEM) { |
71ecc858 LP |
1510 | /* Parse the data passed to us. We leave this |
1511 | * variables set, but the manager later on will not | |
1512 | * pass them on to our children. */ | |
2660882b | 1513 | if (!in_initrd()) |
c3ba6250 | 1514 | parse_initrd_timestamp(&initrd_timestamp); |
e9ddabc2 LP |
1515 | |
1516 | /* Unset some environment variables passed in from the | |
1517 | * kernel that don't really make sense for us. */ | |
39439087 LP |
1518 | unsetenv("HOME"); |
1519 | unsetenv("TERM"); | |
b770165a | 1520 | |
9543ad16 LP |
1521 | /* When we are invoked by a shell, these might be set, |
1522 | * but make little sense to pass on */ | |
1523 | unsetenv("PWD"); | |
1524 | unsetenv("SHLVL"); | |
1525 | unsetenv("_"); | |
1526 | ||
2660882b | 1527 | /* When we are invoked by a chroot-like tool such as |
9f28b98e LP |
1528 | * nspawn, these might be set, but make little sense |
1529 | * to pass on */ | |
1530 | unsetenv("USER"); | |
1531 | unsetenv("LOGNAME"); | |
1532 | ||
01e10de3 LP |
1533 | /* We suppress the socket activation env vars, as |
1534 | * we'll try to match *any* open fd to units if | |
1535 | * possible. */ | |
1536 | unsetenv("LISTEN_FDS"); | |
1537 | unsetenv("LISTEN_PID"); | |
1538 | ||
b770165a LP |
1539 | /* All other variables are left as is, so that clients |
1540 | * can still read them via /proc/1/environ */ | |
39439087 | 1541 | } |
1104f3c1 | 1542 | |
f170852a LP |
1543 | /* Move out of the way, so that we won't block unmounts */ |
1544 | assert_se(chdir("/") == 0); | |
1545 | ||
67445f4e | 1546 | if (arg_running_as == SYSTEMD_SYSTEM) { |
80876c20 LP |
1547 | /* Become a session leader if we aren't one yet. */ |
1548 | setsid(); | |
4ade7963 | 1549 | |
80876c20 LP |
1550 | /* Disable the umask logic */ |
1551 | umask(0); | |
1552 | } | |
1553 | ||
843d2643 LP |
1554 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
1555 | dbus_connection_set_change_sigpipe(FALSE); | |
1556 | ||
2146621b LP |
1557 | /* Reset the console, but only if this is really init and we |
1558 | * are freshly booted */ | |
67445f4e | 1559 | if (arg_running_as == SYSTEMD_SYSTEM && arg_action == ACTION_RUN) |
2660882b | 1560 | console_setup(getpid() == 1 && !skip_setup); |
4ade7963 | 1561 | |
18149b9f | 1562 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1563 | log_open(); |
4ade7963 | 1564 | |
5373d602 LP |
1565 | /* Make sure we leave a core dump without panicing the |
1566 | * kernel. */ | |
4fc935ca LP |
1567 | if (getpid() == 1) |
1568 | install_crash_handler(); | |
97c4f35c | 1569 | |
0c85a4f3 LP |
1570 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) { |
1571 | r = mount_cgroup_controllers(arg_join_controllers); | |
1572 | if (r < 0) | |
1573 | goto finish; | |
1574 | } | |
1575 | ||
67445f4e | 1576 | if (arg_running_as == SYSTEMD_SYSTEM) { |
c20f5ac7 LP |
1577 | const char *virtualization = NULL; |
1578 | ||
bc270841 | 1579 | log_info(PACKAGE_STRING " running in system mode. (" SYSTEMD_FEATURES ")"); |
c20f5ac7 LP |
1580 | |
1581 | detect_virtualization(&virtualization); | |
1582 | if (virtualization) | |
1583 | log_info("Detected virtualization '%s'.", virtualization); | |
1584 | ||
26a1efdf LP |
1585 | if (in_initrd()) |
1586 | log_info("Running in initial RAM disk."); | |
1587 | ||
c20f5ac7 | 1588 | } else |
bc270841 | 1589 | log_debug(PACKAGE_STRING " running in user mode. (" SYSTEMD_FEATURES ")"); |
a5dab5ce | 1590 | |
67445f4e | 1591 | if (arg_running_as == SYSTEMD_SYSTEM && !skip_setup) { |
72bca11b LP |
1592 | locale_setup(); |
1593 | ||
6faa1114 | 1594 | if (arg_show_status || plymouth_running()) |
888c6216 LP |
1595 | status_welcome(); |
1596 | ||
e3043162 | 1597 | #ifdef HAVE_KMOD |
888c6216 | 1598 | kmod_setup(); |
e3043162 | 1599 | #endif |
888c6216 | 1600 | hostname_setup(); |
d7ccca2e | 1601 | machine_id_setup(); |
888c6216 | 1602 | loopback_setup(); |
490aed58 | 1603 | |
6ee5bbf8 | 1604 | test_mtab(); |
80758717 | 1605 | test_usr(); |
871c44a7 | 1606 | test_cgroups(); |
af5bc85d | 1607 | } |
302e8c4c | 1608 | |
67445f4e | 1609 | if (arg_running_as == SYSTEMD_SYSTEM && arg_runtime_watchdog > 0) |
e96d6be7 LP |
1610 | watchdog_set_timeout(&arg_runtime_watchdog); |
1611 | ||
aa0f64ac LP |
1612 | if (arg_timer_slack_nsec != (nsec_t) -1) |
1613 | if (prctl(PR_SET_TIMERSLACK, arg_timer_slack_nsec) < 0) | |
1614 | log_error("Failed to adjust timer slack: %m"); | |
1615 | ||
ec8927ca LP |
1616 | if (arg_capability_bounding_set_drop) { |
1617 | r = capability_bounding_set_drop(arg_capability_bounding_set_drop, true); | |
1618 | if (r < 0) { | |
1619 | log_error("Failed to drop capability bounding set: %s", strerror(-r)); | |
1620 | goto finish; | |
1621 | } | |
939b8f14 LP |
1622 | r = capability_bounding_set_drop_usermode(arg_capability_bounding_set_drop); |
1623 | if (r < 0) { | |
1624 | log_error("Failed to drop capability bounding set of usermode helpers: %s", strerror(-r)); | |
1625 | goto finish; | |
1626 | } | |
ec8927ca LP |
1627 | } |
1628 | ||
67445f4e | 1629 | if (arg_running_as == SYSTEMD_USER) { |
d4447f4d | 1630 | /* Become reaper of our children */ |
8b8ffe68 LP |
1631 | if (prctl(PR_SET_CHILD_SUBREAPER, 1) < 0) { |
1632 | log_warning("Failed to make us a subreaper: %m"); | |
1633 | if (errno == EINVAL) | |
ddfa5101 | 1634 | log_info("Perhaps the kernel version is too old (< 3.4?)"); |
8b8ffe68 | 1635 | } |
d4447f4d AK |
1636 | } |
1637 | ||
67445f4e | 1638 | if (arg_running_as == SYSTEMD_SYSTEM) |
4096d6f5 LP |
1639 | bump_rlimit_nofile(&saved_rlimit_nofile); |
1640 | ||
e96d6be7 LP |
1641 | r = manager_new(arg_running_as, &m); |
1642 | if (r < 0) { | |
8e274523 | 1643 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1644 | goto finish; |
1645 | } | |
1646 | ||
9e58ff9c | 1647 | m->confirm_spawn = arg_confirm_spawn; |
0a494f1f LP |
1648 | m->default_std_output = arg_default_std_output; |
1649 | m->default_std_error = arg_default_std_error; | |
e96d6be7 LP |
1650 | m->runtime_watchdog = arg_runtime_watchdog; |
1651 | m->shutdown_watchdog = arg_shutdown_watchdog; | |
9e58ff9c | 1652 | |
c93ff2e9 FC |
1653 | manager_set_default_rlimits(m, arg_default_rlimit); |
1654 | ||
e9ddabc2 LP |
1655 | if (dual_timestamp_is_set(&initrd_timestamp)) |
1656 | m->initrd_timestamp = initrd_timestamp; | |
1657 | ||
06d4c99a LP |
1658 | if (arg_default_controllers) |
1659 | manager_set_default_controllers(m, arg_default_controllers); | |
1660 | ||
27d340c7 LP |
1661 | manager_set_show_status(m, arg_show_status); |
1662 | ||
bf4df7c3 LP |
1663 | /* Remember whether we should queue the default job */ |
1664 | queue_default_job = !serialization || arg_switched_root; | |
1665 | ||
9d76d730 LP |
1666 | before_startup = now(CLOCK_MONOTONIC); |
1667 | ||
e96d6be7 LP |
1668 | r = manager_startup(m, serialization, fds); |
1669 | if (r < 0) | |
6e2ef85b | 1670 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 | 1671 | |
bf4df7c3 LP |
1672 | /* This will close all file descriptors that were opened, but |
1673 | * not claimed by any unit. */ | |
01e10de3 | 1674 | fdset_free(fds); |
f50e0a01 | 1675 | |
a16e1123 LP |
1676 | if (serialization) { |
1677 | fclose(serialization); | |
1678 | serialization = NULL; | |
bf4df7c3 LP |
1679 | } |
1680 | ||
1681 | if (queue_default_job) { | |
398ef8ba | 1682 | DBusError error; |
1c27d3f3 | 1683 | Unit *target = NULL; |
bacbccb7 | 1684 | Job *default_unit_job; |
398ef8ba LP |
1685 | |
1686 | dbus_error_init(&error); | |
1687 | ||
fa0f4d8a | 1688 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1689 | |
e96d6be7 LP |
1690 | r = manager_load_unit(m, arg_default_unit, NULL, &error, &target); |
1691 | if (r < 0) { | |
398ef8ba LP |
1692 | log_error("Failed to load default target: %s", bus_error(&error, r)); |
1693 | dbus_error_free(&error); | |
ac155bb8 MS |
1694 | } else if (target->load_state == UNIT_ERROR) |
1695 | log_error("Failed to load default target: %s", strerror(-target->load_error)); | |
1696 | else if (target->load_state == UNIT_MASKED) | |
6daf4f90 | 1697 | log_error("Default target masked."); |
27b14a22 | 1698 | |
ac155bb8 | 1699 | if (!target || target->load_state != UNIT_LOADED) { |
a16e1123 | 1700 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1701 | |
e96d6be7 LP |
1702 | r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target); |
1703 | if (r < 0) { | |
398ef8ba LP |
1704 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); |
1705 | dbus_error_free(&error); | |
a16e1123 | 1706 | goto finish; |
ac155bb8 MS |
1707 | } else if (target->load_state == UNIT_ERROR) { |
1708 | log_error("Failed to load rescue target: %s", strerror(-target->load_error)); | |
1c27d3f3 | 1709 | goto finish; |
ac155bb8 | 1710 | } else if (target->load_state == UNIT_MASKED) { |
6daf4f90 | 1711 | log_error("Rescue target masked."); |
00dc5d76 | 1712 | goto finish; |
a16e1123 LP |
1713 | } |
1714 | } | |
37d88da7 | 1715 | |
ac155bb8 | 1716 | assert(target->load_state == UNIT_LOADED); |
00dc5d76 | 1717 | |
fa0f4d8a | 1718 | if (arg_action == ACTION_TEST) { |
40d50879 | 1719 | printf("-> By units:\n"); |
a16e1123 LP |
1720 | manager_dump_units(m, stdout, "\t"); |
1721 | } | |
1722 | ||
bacbccb7 MS |
1723 | r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, &default_unit_job); |
1724 | if (r < 0) { | |
398ef8ba LP |
1725 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1726 | dbus_error_free(&error); | |
37d88da7 LP |
1727 | goto finish; |
1728 | } | |
bacbccb7 | 1729 | m->default_unit_job_id = default_unit_job->id; |
60918275 | 1730 | |
07672f49 LP |
1731 | after_startup = now(CLOCK_MONOTONIC); |
1732 | log_full(arg_action == ACTION_TEST ? LOG_INFO : LOG_DEBUG, | |
1733 | "Loaded units and determined initial transaction in %s.", | |
1734 | format_timespan(timespan, sizeof(timespan), after_startup - before_startup)); | |
1735 | ||
fa0f4d8a | 1736 | if (arg_action == ACTION_TEST) { |
40d50879 | 1737 | printf("-> By jobs:\n"); |
a16e1123 | 1738 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1739 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1740 | goto finish; |
1741 | } | |
e965d56d | 1742 | } |
d46de8a1 | 1743 | |
a16e1123 | 1744 | for (;;) { |
e96d6be7 LP |
1745 | r = manager_loop(m); |
1746 | if (r < 0) { | |
a16e1123 LP |
1747 | log_error("Failed to run mainloop: %s", strerror(-r)); |
1748 | goto finish; | |
1749 | } | |
11dd41ce | 1750 | |
a16e1123 | 1751 | switch (m->exit_code) { |
e965d56d | 1752 | |
a16e1123 | 1753 | case MANAGER_EXIT: |
22f4096c | 1754 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1755 | log_debug("Exit."); |
1756 | goto finish; | |
e965d56d | 1757 | |
a16e1123 | 1758 | case MANAGER_RELOAD: |
e015090f | 1759 | log_info("Reloading."); |
e96d6be7 LP |
1760 | r = manager_reload(m); |
1761 | if (r < 0) | |
a16e1123 LP |
1762 | log_error("Failed to reload: %s", strerror(-r)); |
1763 | break; | |
cea8e32e | 1764 | |
a16e1123 | 1765 | case MANAGER_REEXECUTE: |
664f88a7 | 1766 | |
6b78f9b4 | 1767 | if (prepare_reexecute(m, &serialization, &fds, true) < 0) |
a16e1123 | 1768 | goto finish; |
60918275 | 1769 | |
a16e1123 | 1770 | reexecute = true; |
e015090f | 1771 | log_notice("Reexecuting."); |
a16e1123 LP |
1772 | goto finish; |
1773 | ||
664f88a7 LP |
1774 | case MANAGER_SWITCH_ROOT: |
1775 | /* Steal the switch root parameters */ | |
41669317 | 1776 | switch_root_dir = m->switch_root; |
664f88a7 LP |
1777 | switch_root_init = m->switch_root_init; |
1778 | m->switch_root = m->switch_root_init = NULL; | |
1779 | ||
1780 | if (!switch_root_init) | |
6b78f9b4 | 1781 | if (prepare_reexecute(m, &serialization, &fds, false) < 0) |
664f88a7 LP |
1782 | goto finish; |
1783 | ||
1784 | reexecute = true; | |
1785 | log_notice("Switching root."); | |
1786 | goto finish; | |
1787 | ||
b9080b03 FF |
1788 | case MANAGER_REBOOT: |
1789 | case MANAGER_POWEROFF: | |
1790 | case MANAGER_HALT: | |
1791 | case MANAGER_KEXEC: { | |
1792 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1793 | [MANAGER_REBOOT] = "reboot", | |
1794 | [MANAGER_POWEROFF] = "poweroff", | |
1795 | [MANAGER_HALT] = "halt", | |
1796 | [MANAGER_KEXEC] = "kexec" | |
1797 | }; | |
1798 | ||
1799 | assert_se(shutdown_verb = table[m->exit_code]); | |
e96d6be7 | 1800 | arm_reboot_watchdog = m->exit_code == MANAGER_REBOOT; |
b9080b03 FF |
1801 | |
1802 | log_notice("Shutting down."); | |
1803 | goto finish; | |
1804 | } | |
1805 | ||
a16e1123 LP |
1806 | default: |
1807 | assert_not_reached("Unknown exit code."); | |
1808 | } | |
1809 | } | |
f170852a | 1810 | |
60918275 LP |
1811 | finish: |
1812 | if (m) | |
1813 | manager_free(m); | |
1814 | ||
c93ff2e9 | 1815 | for (j = 0; j < RLIMIT_NLIMITS; j++) |
4096d6f5 | 1816 | free(arg_default_rlimit[j]); |
c93ff2e9 | 1817 | |
fa0f4d8a | 1818 | free(arg_default_unit); |
06d4c99a | 1819 | strv_free(arg_default_controllers); |
0c85a4f3 | 1820 | free_join_controllers(); |
b9cd2ec1 | 1821 | |
ea430986 | 1822 | dbus_shutdown(); |
b2bb3dbe LP |
1823 | label_finish(); |
1824 | ||
a16e1123 | 1825 | if (reexecute) { |
664f88a7 | 1826 | const char **args; |
e564a982 | 1827 | unsigned i, args_size; |
a16e1123 | 1828 | |
664f88a7 LP |
1829 | /* Close and disarm the watchdog, so that the new |
1830 | * instance can reinitialize it, but doesn't get | |
1831 | * rebooted while we do that */ | |
1832 | watchdog_close(true); | |
a16e1123 | 1833 | |
4096d6f5 LP |
1834 | /* Reset the RLIMIT_NOFILE to the kernel default, so |
1835 | * that the new systemd can pass the kernel default to | |
1836 | * its child processes */ | |
1837 | if (saved_rlimit_nofile.rlim_cur > 0) | |
1838 | setrlimit(RLIMIT_NOFILE, &saved_rlimit_nofile); | |
1839 | ||
41669317 | 1840 | if (switch_root_dir) { |
cee530bb LP |
1841 | /* Kill all remaining processes from the |
1842 | * initrd, but don't wait for them, so that we | |
1843 | * can handle the SIGCHLD for them after | |
1844 | * deserializing. */ | |
1845 | broadcast_signal(SIGTERM, false); | |
bd3fa1d2 LP |
1846 | |
1847 | /* And switch root */ | |
41669317 LP |
1848 | r = switch_root(switch_root_dir); |
1849 | if (r < 0) | |
1850 | log_error("Failed to switch root, ignoring: %s", strerror(-r)); | |
1851 | } | |
a16e1123 | 1852 | |
d03bc1b8 | 1853 | args_size = MAX(6, argc+1); |
e564a982 | 1854 | args = newa(const char*, args_size); |
a16e1123 | 1855 | |
664f88a7 LP |
1856 | if (!switch_root_init) { |
1857 | char sfd[16]; | |
a16e1123 | 1858 | |
664f88a7 LP |
1859 | /* First try to spawn ourselves with the right |
1860 | * path, and with full serialization. We do | |
1861 | * this only if the user didn't specify an | |
1862 | * explicit init to spawn. */ | |
edb9aaa8 | 1863 | |
664f88a7 LP |
1864 | assert(serialization); |
1865 | assert(fds); | |
edb9aaa8 | 1866 | |
664f88a7 LP |
1867 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); |
1868 | char_array_0(sfd); | |
edb9aaa8 | 1869 | |
664f88a7 LP |
1870 | i = 0; |
1871 | args[i++] = SYSTEMD_BINARY_PATH; | |
41669317 | 1872 | if (switch_root_dir) |
2660882b | 1873 | args[i++] = "--switched-root"; |
67445f4e | 1874 | args[i++] = arg_running_as == SYSTEMD_SYSTEM ? "--system" : "--user"; |
664f88a7 LP |
1875 | args[i++] = "--deserialize"; |
1876 | args[i++] = sfd; | |
1877 | args[i++] = NULL; | |
edb9aaa8 | 1878 | |
e564a982 | 1879 | assert(i <= args_size); |
664f88a7 LP |
1880 | execv(args[0], (char* const*) args); |
1881 | } | |
6e98720f | 1882 | |
664f88a7 LP |
1883 | /* Try the fallback, if there is any, without any |
1884 | * serialization. We pass the original argv[] and | |
1885 | * envp[]. (Well, modulo the ordering changes due to | |
1886 | * getopt() in argv[], and some cleanups in envp[], | |
1887 | * but let's hope that doesn't matter.) */ | |
a16e1123 | 1888 | |
b8f83232 | 1889 | if (serialization) { |
664f88a7 | 1890 | fclose(serialization); |
b8f83232 LP |
1891 | serialization = NULL; |
1892 | } | |
a16e1123 | 1893 | |
b8f83232 | 1894 | if (fds) { |
664f88a7 | 1895 | fdset_free(fds); |
b8f83232 LP |
1896 | fds = NULL; |
1897 | } | |
a16e1123 | 1898 | |
a504223d HH |
1899 | /* Reopen the console */ |
1900 | make_console_stdio(); | |
1901 | ||
b8f83232 | 1902 | for (j = 1, i = 1; j < argc; j++) |
664f88a7 | 1903 | args[i++] = argv[j]; |
a16e1123 | 1904 | args[i++] = NULL; |
e564a982 | 1905 | assert(i <= args_size); |
b8f83232 LP |
1906 | |
1907 | if (switch_root_init) { | |
1908 | args[0] = switch_root_init; | |
1909 | execv(args[0], (char* const*) args); | |
1910 | log_warning("Failed to execute configured init, trying fallback: %m"); | |
1911 | } | |
1912 | ||
1913 | args[0] = "/sbin/init"; | |
a16e1123 LP |
1914 | execv(args[0], (char* const*) args); |
1915 | ||
745e2fb7 KS |
1916 | if (errno == ENOENT) { |
1917 | log_warning("No /sbin/init, trying fallback"); | |
b8f83232 | 1918 | |
745e2fb7 KS |
1919 | args[0] = "/bin/sh"; |
1920 | args[1] = NULL; | |
1921 | execv(args[0], (char* const*) args); | |
1922 | log_error("Failed to execute /bin/sh, giving up: %m"); | |
1923 | } else | |
1924 | log_warning("Failed to execute /sbin/init, giving up: %m"); | |
a16e1123 LP |
1925 | } |
1926 | ||
1927 | if (serialization) | |
1928 | fclose(serialization); | |
1929 | ||
1930 | if (fds) | |
1931 | fdset_free(fds); | |
1932 | ||
b9080b03 FF |
1933 | if (shutdown_verb) { |
1934 | const char * command_line[] = { | |
1935 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1936 | shutdown_verb, | |
1937 | NULL | |
1938 | }; | |
d18f337c | 1939 | char **env_block; |
b9080b03 | 1940 | |
e96d6be7 | 1941 | if (arm_reboot_watchdog && arg_shutdown_watchdog > 0) { |
d18f337c LP |
1942 | char e[32]; |
1943 | ||
e96d6be7 LP |
1944 | /* If we reboot let's set the shutdown |
1945 | * watchdog and tell the shutdown binary to | |
1946 | * repeatedly ping it */ | |
1947 | watchdog_set_timeout(&arg_shutdown_watchdog); | |
1948 | watchdog_close(false); | |
1949 | ||
1950 | /* Tell the binary how often to ping */ | |
1951 | snprintf(e, sizeof(e), "WATCHDOG_USEC=%llu", (unsigned long long) arg_shutdown_watchdog); | |
1952 | char_array_0(e); | |
d18f337c LP |
1953 | |
1954 | env_block = strv_append(environ, e); | |
1955 | } else { | |
1956 | env_block = strv_copy(environ); | |
e96d6be7 | 1957 | watchdog_close(true); |
d18f337c | 1958 | } |
e96d6be7 | 1959 | |
d18f337c LP |
1960 | execve(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line, env_block); |
1961 | free(env_block); | |
b9080b03 FF |
1962 | log_error("Failed to execute shutdown binary, freezing: %m"); |
1963 | } | |
1964 | ||
c3b3c274 LP |
1965 | if (getpid() == 1) |
1966 | freeze(); | |
1967 | ||
60918275 LP |
1968 | return retval; |
1969 | } |