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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 | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
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 | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
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> |
60918275 LP |
35 | |
36 | #include "manager.h" | |
16354eff | 37 | #include "log.h" |
4ade7963 | 38 | #include "mount-setup.h" |
302e8c4c | 39 | #include "hostname-setup.h" |
af5bc85d | 40 | #include "loopback-setup.h" |
11c3a4ee | 41 | #include "kmod-setup.h" |
72bca11b | 42 | #include "locale-setup.h" |
c4dcdb9f | 43 | #include "selinux-setup.h" |
d7ccca2e | 44 | #include "machine-id-setup.h" |
302e8c4c | 45 | #include "load-fragment.h" |
a16e1123 | 46 | #include "fdset.h" |
514f4ef5 | 47 | #include "special.h" |
487393e9 | 48 | #include "conf-parser.h" |
398ef8ba | 49 | #include "bus-errors.h" |
ad780f19 | 50 | #include "missing.h" |
e51bc1a2 | 51 | #include "label.h" |
302e27c8 | 52 | #include "build.h" |
06d4c99a | 53 | #include "strv.h" |
f6a6225e | 54 | #include "def.h" |
60918275 | 55 | |
f170852a LP |
56 | static enum { |
57 | ACTION_RUN, | |
e965d56d | 58 | ACTION_HELP, |
e537352b | 59 | ACTION_TEST, |
4288f619 LP |
60 | ACTION_DUMP_CONFIGURATION_ITEMS, |
61 | ACTION_DONE | |
fa0f4d8a | 62 | } arg_action = ACTION_RUN; |
f170852a | 63 | |
fa0f4d8a LP |
64 | static char *arg_default_unit = NULL; |
65 | static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; | |
66 | ||
67 | static bool arg_dump_core = true; | |
68 | static bool arg_crash_shell = false; | |
69 | static int arg_crash_chvt = -1; | |
70 | static bool arg_confirm_spawn = false; | |
9e58ff9c | 71 | static bool arg_show_status = true; |
07459bb6 | 72 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 73 | static bool arg_sysv_console = true; |
07459bb6 | 74 | #endif |
d3689161 | 75 | static bool arg_mount_auto = true; |
173a8d04 | 76 | static bool arg_swap_auto = true; |
06d4c99a | 77 | static char **arg_default_controllers = NULL; |
934da035 | 78 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_INHERIT; |
0a494f1f | 79 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
4fc935ca | 80 | |
a16e1123 | 81 | static FILE* serialization = NULL; |
80876c20 | 82 | |
6f5e3f35 LP |
83 | static void nop_handler(int sig) { |
84 | } | |
85 | ||
93a46b0b | 86 | _noreturn_ static void crash(int sig) { |
97c4f35c | 87 | |
fa0f4d8a | 88 | if (!arg_dump_core) |
582a507f | 89 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 90 | else { |
6f5e3f35 | 91 | struct sigaction sa; |
97c4f35c LP |
92 | pid_t pid; |
93 | ||
6f5e3f35 LP |
94 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
95 | zero(sa); | |
96 | sa.sa_handler = nop_handler; | |
97 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
98 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
99 | ||
97c4f35c | 100 | if ((pid = fork()) < 0) |
582a507f | 101 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
102 | |
103 | else if (pid == 0) { | |
97c4f35c LP |
104 | struct rlimit rl; |
105 | ||
106 | /* Enable default signal handler for core dump */ | |
107 | zero(sa); | |
108 | sa.sa_handler = SIG_DFL; | |
109 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
110 | ||
111 | /* Don't limit the core dump size */ | |
112 | zero(rl); | |
113 | rl.rlim_cur = RLIM_INFINITY; | |
114 | rl.rlim_max = RLIM_INFINITY; | |
115 | setrlimit(RLIMIT_CORE, &rl); | |
116 | ||
117 | /* Just to be sure... */ | |
118 | assert_se(chdir("/") == 0); | |
119 | ||
120 | /* Raise the signal again */ | |
121 | raise(sig); | |
122 | ||
123 | assert_not_reached("We shouldn't be here..."); | |
124 | _exit(1); | |
4fc935ca LP |
125 | |
126 | } else { | |
8e12a6ae LP |
127 | siginfo_t status; |
128 | int r; | |
4fc935ca LP |
129 | |
130 | /* Order things nicely. */ | |
8e12a6ae LP |
131 | if ((r = wait_for_terminate(pid, &status)) < 0) |
132 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); | |
133 | else if (status.si_code != CLD_DUMPED) | |
582a507f | 134 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 135 | else |
582a507f | 136 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
137 | } |
138 | } | |
139 | ||
fa0f4d8a LP |
140 | if (arg_crash_chvt) |
141 | chvt(arg_crash_chvt); | |
601f6a1e | 142 | |
fa0f4d8a | 143 | if (arg_crash_shell) { |
6f5e3f35 LP |
144 | struct sigaction sa; |
145 | pid_t pid; | |
8c43883a | 146 | |
4fc935ca LP |
147 | log_info("Executing crash shell in 10s..."); |
148 | sleep(10); | |
149 | ||
6f5e3f35 LP |
150 | /* Let the kernel reap children for us */ |
151 | zero(sa); | |
152 | sa.sa_handler = SIG_IGN; | |
153 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
154 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 155 | |
6f5e3f35 LP |
156 | if ((pid = fork()) < 0) |
157 | log_error("Failed to fork off crash shell: %s", strerror(errno)); | |
158 | else if (pid == 0) { | |
843d2643 | 159 | int fd, r; |
ea5652c2 | 160 | |
21de3988 | 161 | if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0) |
ea5652c2 | 162 | log_error("Failed to acquire terminal: %s", strerror(-fd)); |
5b2a0903 | 163 | else if ((r = make_stdio(fd)) < 0) |
843d2643 | 164 | log_error("Failed to duplicate terminal fd: %s", strerror(-r)); |
ea5652c2 | 165 | |
6f5e3f35 LP |
166 | execl("/bin/sh", "/bin/sh", NULL); |
167 | ||
168 | log_error("execl() failed: %s", strerror(errno)); | |
169 | _exit(1); | |
170 | } | |
c99b188e | 171 | |
bb00e604 | 172 | log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
173 | } |
174 | ||
175 | log_info("Freezing execution."); | |
97c4f35c LP |
176 | freeze(); |
177 | } | |
178 | ||
179 | static void install_crash_handler(void) { | |
180 | struct sigaction sa; | |
181 | ||
182 | zero(sa); | |
183 | ||
184 | sa.sa_handler = crash; | |
185 | sa.sa_flags = SA_NODEFER; | |
186 | ||
1b91d3e8 | 187 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 188 | } |
f170852a | 189 | |
843d2643 LP |
190 | static int console_setup(bool do_reset) { |
191 | int tty_fd, r; | |
80876c20 | 192 | |
843d2643 LP |
193 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
194 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 195 | |
843d2643 LP |
196 | release_terminal(); |
197 | ||
198 | if (!do_reset) | |
199 | return 0; | |
80876c20 | 200 | |
843d2643 LP |
201 | if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) { |
202 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); | |
203 | return -tty_fd; | |
204 | } | |
80876c20 | 205 | |
843d2643 LP |
206 | if ((r = reset_terminal(tty_fd)) < 0) |
207 | log_error("Failed to reset /dev/console: %s", strerror(-r)); | |
208 | ||
209 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
210 | return r; |
211 | } | |
212 | ||
f170852a LP |
213 | static int set_default_unit(const char *u) { |
214 | char *c; | |
215 | ||
216 | assert(u); | |
217 | ||
218 | if (!(c = strdup(u))) | |
219 | return -ENOMEM; | |
220 | ||
fa0f4d8a LP |
221 | free(arg_default_unit); |
222 | arg_default_unit = c; | |
f170852a LP |
223 | return 0; |
224 | } | |
225 | ||
226 | static int parse_proc_cmdline_word(const char *word) { | |
227 | ||
228 | static const char * const rlmap[] = { | |
ed370f5d | 229 | "emergency", SPECIAL_EMERGENCY_TARGET, |
099663ff | 230 | "-b", SPECIAL_EMERGENCY_TARGET, |
ed370f5d LP |
231 | "single", SPECIAL_RESCUE_TARGET, |
232 | "-s", SPECIAL_RESCUE_TARGET, | |
233 | "s", SPECIAL_RESCUE_TARGET, | |
234 | "S", SPECIAL_RESCUE_TARGET, | |
235 | "1", SPECIAL_RESCUE_TARGET, | |
236 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
237 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
238 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
239 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
240 | }; |
241 | ||
5192bd19 LP |
242 | assert(word); |
243 | ||
2f198e2f LP |
244 | if (startswith(word, "systemd.unit=")) |
245 | return set_default_unit(word + 13); | |
f170852a LP |
246 | |
247 | else if (startswith(word, "systemd.log_target=")) { | |
248 | ||
249 | if (log_set_target_from_string(word + 19) < 0) | |
250 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
251 | ||
252 | } else if (startswith(word, "systemd.log_level=")) { | |
253 | ||
254 | if (log_set_max_level_from_string(word + 18) < 0) | |
255 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
256 | ||
bbe63281 LP |
257 | } else if (startswith(word, "systemd.log_color=")) { |
258 | ||
259 | if (log_show_color_from_string(word + 18) < 0) | |
260 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
261 | ||
262 | } else if (startswith(word, "systemd.log_location=")) { | |
263 | ||
264 | if (log_show_location_from_string(word + 21) < 0) | |
265 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
266 | ||
4fc935ca LP |
267 | } else if (startswith(word, "systemd.dump_core=")) { |
268 | int r; | |
269 | ||
270 | if ((r = parse_boolean(word + 18)) < 0) | |
601f6a1e | 271 | log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18); |
4fc935ca | 272 | else |
fa0f4d8a | 273 | arg_dump_core = r; |
4fc935ca LP |
274 | |
275 | } else if (startswith(word, "systemd.crash_shell=")) { | |
276 | int r; | |
277 | ||
278 | if ((r = parse_boolean(word + 20)) < 0) | |
601f6a1e | 279 | log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20); |
4fc935ca | 280 | else |
fa0f4d8a | 281 | arg_crash_shell = r; |
5e7ee61c LP |
282 | |
283 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
284 | int r; | |
285 | ||
286 | if ((r = parse_boolean(word + 22)) < 0) | |
287 | log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22); | |
288 | else | |
fa0f4d8a | 289 | arg_confirm_spawn = r; |
5e7ee61c | 290 | |
601f6a1e LP |
291 | } else if (startswith(word, "systemd.crash_chvt=")) { |
292 | int k; | |
293 | ||
294 | if (safe_atoi(word + 19, &k) < 0) | |
295 | log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19); | |
296 | else | |
fa0f4d8a | 297 | arg_crash_chvt = k; |
601f6a1e | 298 | |
9e58ff9c LP |
299 | } else if (startswith(word, "systemd.show_status=")) { |
300 | int r; | |
301 | ||
302 | if ((r = parse_boolean(word + 20)) < 0) | |
303 | log_warning("Failed to parse show status switch %s, Ignoring.", word + 20); | |
6e98720f | 304 | else |
9e58ff9c | 305 | arg_show_status = r; |
0a494f1f LP |
306 | } else if (startswith(word, "systemd.default_standard_output=")) { |
307 | int r; | |
308 | ||
309 | if ((r = exec_output_from_string(word + 32)) < 0) | |
310 | log_warning("Failed to parse default standard output switch %s, Ignoring.", word + 32); | |
311 | else | |
312 | arg_default_std_output = r; | |
313 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
314 | int r; | |
315 | ||
316 | if ((r = exec_output_from_string(word + 31)) < 0) | |
317 | log_warning("Failed to parse default standard error switch %s, Ignoring.", word + 31); | |
318 | else | |
319 | arg_default_std_error = r; | |
07459bb6 | 320 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
321 | } else if (startswith(word, "systemd.sysv_console=")) { |
322 | int r; | |
323 | ||
324 | if ((r = parse_boolean(word + 21)) < 0) | |
325 | log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20); | |
326 | else | |
327 | arg_sysv_console = r; | |
07459bb6 | 328 | #endif |
9e58ff9c | 329 | |
4fc935ca LP |
330 | } else if (startswith(word, "systemd.")) { |
331 | ||
332 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
333 | ||
bbe63281 LP |
334 | log_info("Supported kernel switches:\n" |
335 | "systemd.unit=UNIT Default unit to start\n" | |
bbe63281 | 336 | "systemd.dump_core=0|1 Dump core on crash\n" |
9e58ff9c | 337 | "systemd.crash_shell=0|1 Run shell on crash\n" |
bbe63281 | 338 | "systemd.crash_chvt=N Change to VT #N on crash\n" |
9e58ff9c | 339 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" |
6e98720f | 340 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" |
07459bb6 | 341 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 342 | "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n" |
07459bb6 | 343 | #endif |
87d1969b | 344 | "systemd.log_target=console|kmsg|syslog|syslog-or-kmsg|null\n" |
6e98720f LP |
345 | " Log target\n" |
346 | "systemd.log_level=LEVEL Log level\n" | |
347 | "systemd.log_color=0|1 Highlight important log messages\n" | |
0a494f1f LP |
348 | "systemd.log_location=0|1 Include code location in log messages\n" |
349 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console\n" | |
350 | " Set default log output for services\n" | |
351 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console\n" | |
352 | " Set default log error output for services\n"); | |
4fc935ca | 353 | |
a9c501a5 | 354 | } else if (streq(word, "quiet")) { |
6e98720f | 355 | arg_show_status = false; |
07459bb6 | 356 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 357 | arg_sysv_console = false; |
07459bb6 | 358 | #endif |
9e58ff9c | 359 | } else { |
f170852a LP |
360 | unsigned i; |
361 | ||
362 | /* SysV compatibility */ | |
f170852a LP |
363 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
364 | if (streq(word, rlmap[i])) | |
365 | return set_default_unit(rlmap[i+1]); | |
366 | } | |
367 | ||
368 | return 0; | |
369 | } | |
370 | ||
487393e9 LP |
371 | static int config_parse_level( |
372 | const char *filename, | |
373 | unsigned line, | |
374 | const char *section, | |
375 | const char *lvalue, | |
3731f1ea | 376 | int ltype, |
487393e9 LP |
377 | const char *rvalue, |
378 | void *data, | |
379 | void *userdata) { | |
380 | ||
381 | assert(filename); | |
382 | assert(lvalue); | |
383 | assert(rvalue); | |
384 | ||
385 | log_set_max_level_from_string(rvalue); | |
386 | return 0; | |
387 | } | |
388 | ||
389 | static int config_parse_target( | |
390 | const char *filename, | |
391 | unsigned line, | |
392 | const char *section, | |
393 | const char *lvalue, | |
3731f1ea | 394 | int ltype, |
487393e9 LP |
395 | const char *rvalue, |
396 | void *data, | |
397 | void *userdata) { | |
398 | ||
399 | assert(filename); | |
400 | assert(lvalue); | |
401 | assert(rvalue); | |
402 | ||
403 | log_set_target_from_string(rvalue); | |
404 | return 0; | |
405 | } | |
406 | ||
407 | static int config_parse_color( | |
408 | const char *filename, | |
409 | unsigned line, | |
410 | const char *section, | |
411 | const char *lvalue, | |
3731f1ea | 412 | int ltype, |
487393e9 LP |
413 | const char *rvalue, |
414 | void *data, | |
415 | void *userdata) { | |
416 | ||
417 | assert(filename); | |
418 | assert(lvalue); | |
419 | assert(rvalue); | |
420 | ||
421 | log_show_color_from_string(rvalue); | |
422 | return 0; | |
423 | } | |
424 | ||
425 | static int config_parse_location( | |
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_show_location_from_string(rvalue); | |
440 | return 0; | |
441 | } | |
442 | ||
443 | static int config_parse_cpu_affinity( | |
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 | char *w; | |
454 | size_t l; | |
455 | char *state; | |
456 | cpu_set_t *c = NULL; | |
457 | unsigned ncpus = 0; | |
458 | ||
459 | assert(filename); | |
460 | assert(lvalue); | |
461 | assert(rvalue); | |
462 | ||
f60f22df | 463 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
464 | char *t; |
465 | int r; | |
466 | unsigned cpu; | |
467 | ||
468 | if (!(t = strndup(w, l))) | |
469 | return -ENOMEM; | |
470 | ||
471 | r = safe_atou(t, &cpu); | |
472 | free(t); | |
473 | ||
474 | if (!c) | |
475 | if (!(c = cpu_set_malloc(&ncpus))) | |
476 | return -ENOMEM; | |
477 | ||
478 | if (r < 0 || cpu >= ncpus) { | |
479 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
480 | CPU_FREE(c); | |
481 | return -EBADMSG; | |
482 | } | |
483 | ||
484 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
485 | } | |
486 | ||
487 | if (c) { | |
488 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
489 | log_warning("Failed to set CPU affinity: %m"); | |
490 | ||
491 | CPU_FREE(c); | |
492 | } | |
493 | ||
494 | return 0; | |
495 | } | |
496 | ||
0a494f1f LP |
497 | static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier"); |
498 | ||
487393e9 LP |
499 | static int parse_config_file(void) { |
500 | ||
501 | const ConfigItem items[] = { | |
2b583ce6 KS |
502 | { "LogLevel", config_parse_level, 0, NULL, "Manager" }, |
503 | { "LogTarget", config_parse_target, 0, NULL, "Manager" }, | |
504 | { "LogColor", config_parse_color, 0, NULL, "Manager" }, | |
505 | { "LogLocation", config_parse_location, 0, NULL, "Manager" }, | |
506 | { "DumpCore", config_parse_bool, 0, &arg_dump_core, "Manager" }, | |
507 | { "CrashShell", config_parse_bool, 0, &arg_crash_shell, "Manager" }, | |
508 | { "ShowStatus", config_parse_bool, 0, &arg_show_status, "Manager" }, | |
07459bb6 | 509 | #ifdef HAVE_SYSV_COMPAT |
2b583ce6 | 510 | { "SysVConsole", config_parse_bool, 0, &arg_sysv_console, "Manager" }, |
07459bb6 | 511 | #endif |
2b583ce6 KS |
512 | { "CrashChVT", config_parse_int, 0, &arg_crash_chvt, "Manager" }, |
513 | { "CPUAffinity", config_parse_cpu_affinity, 0, NULL, "Manager" }, | |
514 | { "MountAuto", config_parse_bool, 0, &arg_mount_auto, "Manager" }, | |
515 | { "SwapAuto", config_parse_bool, 0, &arg_swap_auto, "Manager" }, | |
516 | { "DefaultControllers", config_parse_strv, 0, &arg_default_controllers, "Manager" }, | |
517 | { "DefaultStandardOutput", config_parse_output, 0, &arg_default_std_output, "Manager" }, | |
518 | { "DefaultStandardError", config_parse_output, 0, &arg_default_std_error, "Manager" }, | |
519 | { NULL, NULL, 0, NULL, NULL } | |
487393e9 LP |
520 | }; |
521 | ||
522 | static const char * const sections[] = { | |
523 | "Manager", | |
524 | NULL | |
525 | }; | |
526 | ||
527 | FILE *f; | |
528 | const char *fn; | |
529 | int r; | |
530 | ||
af2d49f7 | 531 | fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE; |
487393e9 LP |
532 | |
533 | if (!(f = fopen(fn, "re"))) { | |
534 | if (errno == ENOENT) | |
535 | return 0; | |
536 | ||
537 | log_warning("Failed to open configuration file '%s': %m", fn); | |
538 | return 0; | |
539 | } | |
540 | ||
541 | if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0) | |
542 | log_warning("Failed to parse configuration file: %s", strerror(-r)); | |
543 | ||
544 | fclose(f); | |
545 | ||
546 | return 0; | |
547 | } | |
548 | ||
f170852a | 549 | static int parse_proc_cmdline(void) { |
52661efd | 550 | char *line, *w, *state; |
f170852a | 551 | int r; |
f170852a | 552 | size_t l; |
f170852a | 553 | |
b770165a LP |
554 | /* Don't read /proc/cmdline if we are in a container, since |
555 | * that is only relevant for the host system */ | |
556 | if (detect_container(NULL) > 0) | |
557 | return 0; | |
558 | ||
f170852a | 559 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { |
e364ad06 | 560 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
561 | return 0; |
562 | } | |
563 | ||
564 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
565 | char *word; | |
566 | ||
567 | if (!(word = strndup(w, l))) { | |
568 | r = -ENOMEM; | |
569 | goto finish; | |
570 | } | |
571 | ||
572 | r = parse_proc_cmdline_word(word); | |
573 | free(word); | |
574 | ||
575 | if (r < 0) | |
576 | goto finish; | |
577 | } | |
578 | ||
579 | r = 0; | |
580 | ||
581 | finish: | |
582 | free(line); | |
583 | return r; | |
584 | } | |
585 | ||
586 | static int parse_argv(int argc, char *argv[]) { | |
587 | ||
588 | enum { | |
589 | ARG_LOG_LEVEL = 0x100, | |
590 | ARG_LOG_TARGET, | |
bbe63281 LP |
591 | ARG_LOG_COLOR, |
592 | ARG_LOG_LOCATION, | |
2f198e2f | 593 | ARG_UNIT, |
edb9aaa8 | 594 | ARG_SYSTEM, |
af2d49f7 | 595 | ARG_USER, |
e537352b | 596 | ARG_TEST, |
80876c20 | 597 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
598 | ARG_DUMP_CORE, |
599 | ARG_CRASH_SHELL, | |
a16e1123 | 600 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 601 | ARG_SHOW_STATUS, |
6e98720f | 602 | ARG_SYSV_CONSOLE, |
4288f619 | 603 | ARG_DESERIALIZE, |
0a494f1f LP |
604 | ARG_INTROSPECT, |
605 | ARG_DEFAULT_STD_OUTPUT, | |
606 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
607 | }; |
608 | ||
609 | static const struct option options[] = { | |
a16e1123 LP |
610 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
611 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
612 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
613 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 614 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 615 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 616 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
617 | { "test", no_argument, NULL, ARG_TEST }, |
618 | { "help", no_argument, NULL, 'h' }, | |
619 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, | |
9e58ff9c LP |
620 | { "dump-core", no_argument, NULL, ARG_DUMP_CORE }, |
621 | { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL }, | |
a16e1123 | 622 | { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN }, |
6e98720f | 623 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
07459bb6 | 624 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 625 | { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE }, |
07459bb6 | 626 | #endif |
a16e1123 | 627 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
4288f619 | 628 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
0a494f1f LP |
629 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
630 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 631 | { NULL, 0, NULL, 0 } |
f170852a LP |
632 | }; |
633 | ||
634 | int c, r; | |
635 | ||
636 | assert(argc >= 1); | |
637 | assert(argv); | |
638 | ||
b770165a LP |
639 | if (getpid() == 1) |
640 | opterr = 0; | |
641 | ||
099663ff | 642 | while ((c = getopt_long(argc, argv, "hDbsz:", options, NULL)) >= 0) |
f170852a LP |
643 | |
644 | switch (c) { | |
645 | ||
646 | case ARG_LOG_LEVEL: | |
647 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
648 | log_error("Failed to parse log level %s.", optarg); | |
649 | return r; | |
650 | } | |
651 | ||
652 | break; | |
653 | ||
654 | case ARG_LOG_TARGET: | |
655 | ||
656 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
657 | log_error("Failed to parse log target %s.", optarg); | |
658 | return r; | |
659 | } | |
660 | ||
661 | break; | |
662 | ||
bbe63281 LP |
663 | case ARG_LOG_COLOR: |
664 | ||
d0b170c8 LP |
665 | if (optarg) { |
666 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
667 | log_error("Failed to parse log color setting %s.", optarg); | |
668 | return r; | |
669 | } | |
670 | } else | |
671 | log_show_color(true); | |
bbe63281 LP |
672 | |
673 | break; | |
674 | ||
675 | case ARG_LOG_LOCATION: | |
676 | ||
d0b170c8 LP |
677 | if (optarg) { |
678 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
679 | log_error("Failed to parse log location setting %s.", optarg); | |
680 | return r; | |
681 | } | |
682 | } else | |
683 | log_show_location(true); | |
bbe63281 LP |
684 | |
685 | break; | |
686 | ||
0a494f1f LP |
687 | case ARG_DEFAULT_STD_OUTPUT: |
688 | ||
689 | if ((r = exec_output_from_string(optarg)) < 0) { | |
690 | log_error("Failed to parse default standard output setting %s.", optarg); | |
691 | return r; | |
692 | } else | |
693 | arg_default_std_output = r; | |
694 | break; | |
695 | ||
696 | case ARG_DEFAULT_STD_ERROR: | |
697 | ||
698 | if ((r = exec_output_from_string(optarg)) < 0) { | |
699 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
700 | return r; | |
701 | } else | |
702 | arg_default_std_error = r; | |
703 | break; | |
704 | ||
2f198e2f | 705 | case ARG_UNIT: |
f170852a LP |
706 | |
707 | if ((r = set_default_unit(optarg)) < 0) { | |
708 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
709 | return r; | |
710 | } | |
711 | ||
712 | break; | |
713 | ||
edb9aaa8 LP |
714 | case ARG_SYSTEM: |
715 | arg_running_as = MANAGER_SYSTEM; | |
716 | break; | |
a5dab5ce | 717 | |
af2d49f7 LP |
718 | case ARG_USER: |
719 | arg_running_as = MANAGER_USER; | |
a5dab5ce | 720 | break; |
a5dab5ce | 721 | |
e965d56d | 722 | case ARG_TEST: |
fa0f4d8a | 723 | arg_action = ACTION_TEST; |
e965d56d LP |
724 | break; |
725 | ||
e537352b | 726 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 727 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
728 | break; |
729 | ||
9e58ff9c LP |
730 | case ARG_DUMP_CORE: |
731 | arg_dump_core = true; | |
732 | break; | |
733 | ||
734 | case ARG_CRASH_SHELL: | |
735 | arg_crash_shell = true; | |
736 | break; | |
737 | ||
80876c20 | 738 | case ARG_CONFIRM_SPAWN: |
fa0f4d8a | 739 | arg_confirm_spawn = true; |
80876c20 LP |
740 | break; |
741 | ||
9e58ff9c | 742 | case ARG_SHOW_STATUS: |
6e98720f LP |
743 | |
744 | if (optarg) { | |
745 | if ((r = parse_boolean(optarg)) < 0) { | |
746 | log_error("Failed to show status boolean %s.", optarg); | |
747 | return r; | |
748 | } | |
749 | arg_show_status = r; | |
750 | } else | |
751 | arg_show_status = true; | |
752 | break; | |
07459bb6 | 753 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
754 | case ARG_SYSV_CONSOLE: |
755 | ||
756 | if (optarg) { | |
757 | if ((r = parse_boolean(optarg)) < 0) { | |
758 | log_error("Failed to SysV console boolean %s.", optarg); | |
759 | return r; | |
760 | } | |
761 | arg_sysv_console = r; | |
762 | } else | |
763 | arg_sysv_console = true; | |
9e58ff9c | 764 | break; |
07459bb6 | 765 | #endif |
9e58ff9c | 766 | |
a16e1123 LP |
767 | case ARG_DESERIALIZE: { |
768 | int fd; | |
769 | FILE *f; | |
770 | ||
771 | if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) { | |
772 | log_error("Failed to parse deserialize option %s.", optarg); | |
773 | return r; | |
774 | } | |
775 | ||
776 | if (!(f = fdopen(fd, "r"))) { | |
777 | log_error("Failed to open serialization fd: %m"); | |
778 | return r; | |
779 | } | |
780 | ||
781 | if (serialization) | |
782 | fclose(serialization); | |
783 | ||
784 | serialization = f; | |
785 | ||
786 | break; | |
787 | } | |
788 | ||
4288f619 LP |
789 | case ARG_INTROSPECT: { |
790 | const char * const * i = NULL; | |
791 | ||
792 | for (i = bus_interface_table; *i; i += 2) | |
793 | if (!optarg || streq(i[0], optarg)) { | |
794 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
795 | "<node>\n", stdout); | |
796 | fputs(i[1], stdout); | |
797 | fputs("</node>\n", stdout); | |
798 | ||
799 | if (optarg) | |
800 | break; | |
801 | } | |
802 | ||
803 | if (!i[0] && optarg) | |
804 | log_error("Unknown interface %s.", optarg); | |
805 | ||
fa0f4d8a | 806 | arg_action = ACTION_DONE; |
4288f619 LP |
807 | break; |
808 | } | |
809 | ||
f170852a | 810 | case 'h': |
fa0f4d8a | 811 | arg_action = ACTION_HELP; |
f170852a LP |
812 | break; |
813 | ||
1d2e23ab LP |
814 | case 'D': |
815 | log_set_max_level(LOG_DEBUG); | |
816 | break; | |
817 | ||
099663ff LP |
818 | case 'b': |
819 | case 's': | |
820 | case 'z': | |
821 | /* Just to eat away the sysvinit kernel | |
822 | * cmdline args without getopt() error | |
823 | * messages that we'll parse in | |
824 | * parse_proc_cmdline_word() or ignore. */ | |
f170852a | 825 | |
099663ff | 826 | case '?': |
f170852a | 827 | default: |
099663ff LP |
828 | if (getpid() != 1) { |
829 | log_error("Unknown option code %c", c); | |
830 | return -EINVAL; | |
831 | } | |
832 | ||
833 | break; | |
f170852a LP |
834 | } |
835 | ||
d821e6d6 LP |
836 | if (optind < argc && getpid() != 1) { |
837 | /* Hmm, when we aren't run as init system | |
838 | * let's complain about excess arguments */ | |
839 | ||
840 | log_error("Excess arguments."); | |
841 | return -EINVAL; | |
842 | } | |
843 | ||
844 | if (detect_container(NULL) > 0) { | |
845 | char **a; | |
846 | ||
847 | /* All /proc/cmdline arguments the kernel didn't | |
848 | * understand it passed to us. We're not really | |
849 | * interested in that usually since /proc/cmdline is | |
850 | * more interesting and complete. With one exception: | |
851 | * if we are run in a container /proc/cmdline is not | |
852 | * relevant for the container, hence we rely on argv[] | |
853 | * instead. */ | |
854 | ||
855 | for (a = argv; a < argv + argc; a++) | |
856 | if ((r = parse_proc_cmdline_word(*a)) < 0) | |
857 | return r; | |
51f0e189 LP |
858 | } |
859 | ||
f170852a LP |
860 | return 0; |
861 | } | |
862 | ||
863 | static int help(void) { | |
864 | ||
2e33c433 | 865 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 866 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 867 | " -h --help Show this help\n" |
e537352b | 868 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 869 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 870 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 871 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 872 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 873 | " --user Run a user instance\n" |
9e58ff9c LP |
874 | " --dump-core Dump core on crash\n" |
875 | " --crash-shell Run shell on crash\n" | |
876 | " --confirm-spawn Ask for confirmation when spawning processes\n" | |
6e98720f | 877 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
07459bb6 | 878 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 879 | " --sysv-console[=0|1] Connect output of SysV scripts to console\n" |
07459bb6 | 880 | #endif |
bbe63281 | 881 | " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 882 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 883 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
884 | " --log-location[=0|1] Include code location in log messages\n" |
885 | " --default-standard-output= Set default standard output for services\n" | |
886 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 887 | program_invocation_short_name); |
f170852a LP |
888 | |
889 | return 0; | |
890 | } | |
891 | ||
a16e1123 LP |
892 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) { |
893 | FILE *f = NULL; | |
894 | FDSet *fds = NULL; | |
895 | int r; | |
896 | ||
897 | assert(m); | |
898 | assert(_f); | |
899 | assert(_fds); | |
900 | ||
d8d5ab98 | 901 | if ((r = manager_open_serialization(m, &f)) < 0) { |
35b8ca3a | 902 | log_error("Failed to create serialization file: %s", strerror(-r)); |
a16e1123 LP |
903 | goto fail; |
904 | } | |
905 | ||
906 | if (!(fds = fdset_new())) { | |
907 | r = -ENOMEM; | |
908 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
909 | goto fail; | |
910 | } | |
911 | ||
912 | if ((r = manager_serialize(m, f, fds)) < 0) { | |
913 | log_error("Failed to serialize state: %s", strerror(-r)); | |
914 | goto fail; | |
915 | } | |
916 | ||
917 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
918 | log_error("Failed to rewind serialization fd: %m"); | |
919 | goto fail; | |
920 | } | |
921 | ||
922 | if ((r = fd_cloexec(fileno(f), false)) < 0) { | |
923 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); | |
924 | goto fail; | |
925 | } | |
926 | ||
927 | if ((r = fdset_cloexec(fds, false)) < 0) { | |
928 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); | |
929 | goto fail; | |
930 | } | |
931 | ||
932 | *_f = f; | |
933 | *_fds = fds; | |
934 | ||
935 | return 0; | |
936 | ||
937 | fail: | |
938 | fdset_free(fds); | |
939 | ||
940 | if (f) | |
941 | fclose(f); | |
942 | ||
943 | return r; | |
944 | } | |
945 | ||
e9ddabc2 LP |
946 | static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { |
947 | const char *e; | |
948 | unsigned long long a, b; | |
949 | ||
950 | assert(t); | |
951 | ||
952 | if (!(e = getenv("RD_TIMESTAMP"))) | |
953 | return NULL; | |
954 | ||
955 | if (sscanf(e, "%llu %llu", &a, &b) != 2) | |
956 | return NULL; | |
957 | ||
958 | t->realtime = (usec_t) a; | |
959 | t->monotonic = (usec_t) b; | |
960 | ||
961 | return t; | |
962 | } | |
963 | ||
6ee5bbf8 LP |
964 | static void test_mtab(void) { |
965 | char *p; | |
966 | ||
80758717 LP |
967 | /* Check that /etc/mtab is a symlink */ |
968 | ||
6ee5bbf8 LP |
969 | if (readlink_malloc("/etc/mtab", &p) >= 0) { |
970 | bool b; | |
971 | ||
ed86ebc4 | 972 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
973 | free(p); |
974 | ||
975 | if (b) | |
976 | return; | |
977 | } | |
978 | ||
80758717 LP |
979 | log_warning("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " |
980 | "This is not supported anymore. " | |
981 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
982 | } | |
983 | ||
984 | static void test_usr(void) { | |
80758717 | 985 | |
ed1c99fc | 986 | /* Check that /usr is not a separate fs */ |
80758717 | 987 | |
80758717 | 988 | if (dir_is_empty("/usr") > 0) |
b0c8757b LP |
989 | log_warning("/usr appears to be on a different file system than /. This is not supported anymore. " |
990 | "Some things will probably break (sometimes even silently) in mysterious ways. " | |
991 | "Consult http://freedesktop.org/wiki/Software/systemd/separate-usr-is-broken for more information."); | |
6ee5bbf8 LP |
992 | } |
993 | ||
60918275 LP |
994 | int main(int argc, char *argv[]) { |
995 | Manager *m = NULL; | |
22f4096c | 996 | int r, retval = EXIT_FAILURE; |
a16e1123 LP |
997 | FDSet *fds = NULL; |
998 | bool reexecute = false; | |
b9080b03 | 999 | const char *shutdown_verb = NULL; |
e9ddabc2 | 1000 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
f3b6a3ed | 1001 | char systemd[] = "systemd"; |
27b14a22 | 1002 | |
2cb1a60d | 1003 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
35b8ca3a | 1004 | /* This is compatibility support for SysV, where |
2cb1a60d LP |
1005 | * calling init as a user is identical to telinit. */ |
1006 | ||
1007 | errno = -ENOENT; | |
1008 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
1009 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
1010 | return 1; | |
1011 | } | |
1012 | ||
f3b6a3ed LP |
1013 | /* If we get started via the /sbin/init symlink then we are |
1014 | called 'init'. After a subsequent reexecution we are then | |
1015 | called 'systemd'. That is confusing, hence let's call us | |
1016 | systemd right-away. */ | |
1017 | ||
1018 | program_invocation_short_name = systemd; | |
1019 | prctl(PR_SET_NAME, systemd); | |
1020 | ||
2cc59dbf | 1021 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 1022 | log_show_location(false); |
7c706717 | 1023 | log_set_max_level(LOG_INFO); |
bbe63281 | 1024 | |
843d2643 | 1025 | if (getpid() == 1) { |
fa0f4d8a | 1026 | arg_running_as = MANAGER_SYSTEM; |
90df7e56 | 1027 | log_set_target(detect_container(NULL) > 0 ? LOG_TARGET_CONSOLE : LOG_TARGET_SYSLOG_OR_KMSG); |
0ff4cdd9 | 1028 | |
c4dcdb9f LP |
1029 | /* This might actually not return, but cause a |
1030 | * reexecution */ | |
1031 | if (selinux_setup(argv) < 0) | |
1032 | goto finish; | |
1033 | ||
0ff4cdd9 LP |
1034 | if (label_init() < 0) |
1035 | goto finish; | |
bbe63281 | 1036 | } else { |
af2d49f7 | 1037 | arg_running_as = MANAGER_USER; |
bbe63281 LP |
1038 | log_set_target(LOG_TARGET_CONSOLE); |
1039 | } | |
a5dab5ce | 1040 | |
f170852a LP |
1041 | if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) |
1042 | goto finish; | |
60918275 | 1043 | |
f170852a LP |
1044 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
1045 | * /proc/$PID/fd is available. */ | |
ca326f6f | 1046 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) |
8efe3c01 LP |
1047 | if (mount_setup() < 0) |
1048 | goto finish; | |
4ade7963 LP |
1049 | |
1050 | /* Reset all signal handlers. */ | |
1051 | assert_se(reset_all_signal_handlers() == 0); | |
1052 | ||
078e4539 | 1053 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 1054 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1055 | |
487393e9 LP |
1056 | if (parse_config_file() < 0) |
1057 | goto finish; | |
1058 | ||
fa0f4d8a | 1059 | if (arg_running_as == MANAGER_SYSTEM) |
a5dab5ce LP |
1060 | if (parse_proc_cmdline() < 0) |
1061 | goto finish; | |
f170852a LP |
1062 | |
1063 | log_parse_environment(); | |
1064 | ||
1065 | if (parse_argv(argc, argv) < 0) | |
1066 | goto finish; | |
1067 | ||
b5c6cf87 LP |
1068 | if (arg_action == ACTION_TEST && geteuid() == 0) { |
1069 | log_error("Don't run test mode as root."); | |
1070 | goto finish; | |
1071 | } | |
1072 | ||
fe783b03 LP |
1073 | if (arg_running_as == MANAGER_SYSTEM && |
1074 | arg_action == ACTION_RUN && | |
1075 | running_in_chroot() > 0) { | |
1076 | log_error("Cannot be run in a chroot() environment."); | |
1077 | goto finish; | |
1078 | } | |
1079 | ||
e1b2b494 LP |
1080 | /* If Plymouth is being run make sure we show the status, so |
1081 | * that there's something nice to see when people press Esc */ | |
2b583ce6 | 1082 | if (access("/run/initramfs/plymouth", F_OK) >= 0) |
e1b2b494 LP |
1083 | arg_show_status = true; |
1084 | ||
fa0f4d8a | 1085 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1086 | retval = help(); |
1087 | goto finish; | |
fa0f4d8a | 1088 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1089 | unit_dump_config_items(stdout); |
22f4096c | 1090 | retval = EXIT_SUCCESS; |
e537352b | 1091 | goto finish; |
fa0f4d8a | 1092 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1093 | retval = EXIT_SUCCESS; |
4288f619 | 1094 | goto finish; |
f170852a LP |
1095 | } |
1096 | ||
fa0f4d8a | 1097 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1098 | |
a16e1123 LP |
1099 | /* Remember open file descriptors for later deserialization */ |
1100 | if (serialization) { | |
1101 | if ((r = fdset_new_fill(&fds)) < 0) { | |
1102 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1103 | goto finish; | |
1104 | } | |
1105 | ||
1106 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); | |
1107 | } else | |
1108 | close_all_fds(NULL, 0); | |
1109 | ||
09082a94 | 1110 | /* Set up PATH unless it is already set */ |
e537352b LP |
1111 | setenv("PATH", |
1112 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", | |
fa0f4d8a | 1113 | arg_running_as == MANAGER_SYSTEM); |
09082a94 | 1114 | |
39439087 | 1115 | if (arg_running_as == MANAGER_SYSTEM) { |
e9ddabc2 LP |
1116 | /* Parse the data passed to us by the initrd and unset it */ |
1117 | parse_initrd_timestamp(&initrd_timestamp); | |
1118 | filter_environ("RD_"); | |
1119 | ||
1120 | /* Unset some environment variables passed in from the | |
1121 | * kernel that don't really make sense for us. */ | |
39439087 LP |
1122 | unsetenv("HOME"); |
1123 | unsetenv("TERM"); | |
b770165a LP |
1124 | |
1125 | /* All other variables are left as is, so that clients | |
1126 | * can still read them via /proc/1/environ */ | |
39439087 | 1127 | } |
1104f3c1 | 1128 | |
f170852a LP |
1129 | /* Move out of the way, so that we won't block unmounts */ |
1130 | assert_se(chdir("/") == 0); | |
1131 | ||
fa0f4d8a | 1132 | if (arg_running_as == MANAGER_SYSTEM) { |
80876c20 LP |
1133 | /* Become a session leader if we aren't one yet. */ |
1134 | setsid(); | |
4ade7963 | 1135 | |
80876c20 LP |
1136 | /* Disable the umask logic */ |
1137 | umask(0); | |
1138 | } | |
1139 | ||
843d2643 LP |
1140 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
1141 | dbus_connection_set_change_sigpipe(FALSE); | |
1142 | ||
2146621b LP |
1143 | /* Reset the console, but only if this is really init and we |
1144 | * are freshly booted */ | |
fa0f4d8a | 1145 | if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { |
2146621b | 1146 | console_setup(getpid() == 1 && !serialization); |
843d2643 LP |
1147 | make_null_stdio(); |
1148 | } | |
4ade7963 | 1149 | |
18149b9f | 1150 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1151 | log_open(); |
4ade7963 | 1152 | |
5373d602 LP |
1153 | /* Make sure we leave a core dump without panicing the |
1154 | * kernel. */ | |
4fc935ca LP |
1155 | if (getpid() == 1) |
1156 | install_crash_handler(); | |
97c4f35c | 1157 | |
302e27c8 | 1158 | log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, |
7d568925 | 1159 | PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as)); |
a5dab5ce | 1160 | |
888c6216 | 1161 | if (arg_running_as == MANAGER_SYSTEM && !serialization) { |
72bca11b LP |
1162 | locale_setup(); |
1163 | ||
888c6216 LP |
1164 | if (arg_show_status) |
1165 | status_welcome(); | |
1166 | ||
888c6216 LP |
1167 | kmod_setup(); |
1168 | hostname_setup(); | |
d7ccca2e | 1169 | machine_id_setup(); |
888c6216 | 1170 | loopback_setup(); |
490aed58 | 1171 | |
6ee5bbf8 | 1172 | test_mtab(); |
80758717 | 1173 | test_usr(); |
af5bc85d | 1174 | } |
302e8c4c | 1175 | |
9e58ff9c | 1176 | if ((r = manager_new(arg_running_as, &m)) < 0) { |
8e274523 | 1177 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1178 | goto finish; |
1179 | } | |
1180 | ||
9e58ff9c LP |
1181 | m->confirm_spawn = arg_confirm_spawn; |
1182 | m->show_status = arg_show_status; | |
07459bb6 | 1183 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 1184 | m->sysv_console = arg_sysv_console; |
07459bb6 | 1185 | #endif |
d3689161 | 1186 | m->mount_auto = arg_mount_auto; |
173a8d04 | 1187 | m->swap_auto = arg_swap_auto; |
0a494f1f LP |
1188 | m->default_std_output = arg_default_std_output; |
1189 | m->default_std_error = arg_default_std_error; | |
9e58ff9c | 1190 | |
e9ddabc2 LP |
1191 | if (dual_timestamp_is_set(&initrd_timestamp)) |
1192 | m->initrd_timestamp = initrd_timestamp; | |
1193 | ||
06d4c99a LP |
1194 | if (arg_default_controllers) |
1195 | manager_set_default_controllers(m, arg_default_controllers); | |
1196 | ||
a16e1123 | 1197 | if ((r = manager_startup(m, serialization, fds)) < 0) |
6e2ef85b | 1198 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 LP |
1199 | |
1200 | if (fds) { | |
1201 | /* This will close all file descriptors that were opened, but | |
1202 | * not claimed by any unit. */ | |
1203 | ||
1204 | fdset_free(fds); | |
1205 | fds = NULL; | |
f50e0a01 LP |
1206 | } |
1207 | ||
a16e1123 LP |
1208 | if (serialization) { |
1209 | fclose(serialization); | |
1210 | serialization = NULL; | |
1211 | } else { | |
398ef8ba | 1212 | DBusError error; |
1c27d3f3 | 1213 | Unit *target = NULL; |
398ef8ba LP |
1214 | |
1215 | dbus_error_init(&error); | |
1216 | ||
fa0f4d8a | 1217 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1218 | |
398ef8ba LP |
1219 | if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) { |
1220 | log_error("Failed to load default target: %s", bus_error(&error, r)); | |
1221 | dbus_error_free(&error); | |
00dc5d76 | 1222 | } else if (target->meta.load_state == UNIT_ERROR) |
1c27d3f3 | 1223 | log_error("Failed to load default target: %s", strerror(-target->meta.load_error)); |
6daf4f90 LP |
1224 | else if (target->meta.load_state == UNIT_MASKED) |
1225 | log_error("Default target masked."); | |
27b14a22 | 1226 | |
1c27d3f3 | 1227 | if (!target || target->meta.load_state != UNIT_LOADED) { |
a16e1123 | 1228 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1229 | |
398ef8ba LP |
1230 | if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) { |
1231 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); | |
1232 | dbus_error_free(&error); | |
a16e1123 | 1233 | goto finish; |
00dc5d76 | 1234 | } else if (target->meta.load_state == UNIT_ERROR) { |
1c27d3f3 LP |
1235 | log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error)); |
1236 | goto finish; | |
6daf4f90 LP |
1237 | } else if (target->meta.load_state == UNIT_MASKED) { |
1238 | log_error("Rescue target masked."); | |
00dc5d76 | 1239 | goto finish; |
a16e1123 LP |
1240 | } |
1241 | } | |
37d88da7 | 1242 | |
00dc5d76 LP |
1243 | assert(target->meta.load_state == UNIT_LOADED); |
1244 | ||
fa0f4d8a | 1245 | if (arg_action == ACTION_TEST) { |
40d50879 | 1246 | printf("-> By units:\n"); |
a16e1123 LP |
1247 | manager_dump_units(m, stdout, "\t"); |
1248 | } | |
1249 | ||
0ff4cdd9 | 1250 | if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) { |
398ef8ba LP |
1251 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1252 | dbus_error_free(&error); | |
37d88da7 LP |
1253 | goto finish; |
1254 | } | |
60918275 | 1255 | |
fa0f4d8a | 1256 | if (arg_action == ACTION_TEST) { |
40d50879 | 1257 | printf("-> By jobs:\n"); |
a16e1123 | 1258 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1259 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1260 | goto finish; |
1261 | } | |
e965d56d | 1262 | } |
d46de8a1 | 1263 | |
a16e1123 LP |
1264 | for (;;) { |
1265 | if ((r = manager_loop(m)) < 0) { | |
1266 | log_error("Failed to run mainloop: %s", strerror(-r)); | |
1267 | goto finish; | |
1268 | } | |
11dd41ce | 1269 | |
a16e1123 | 1270 | switch (m->exit_code) { |
e965d56d | 1271 | |
a16e1123 | 1272 | case MANAGER_EXIT: |
22f4096c | 1273 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1274 | log_debug("Exit."); |
1275 | goto finish; | |
e965d56d | 1276 | |
a16e1123 | 1277 | case MANAGER_RELOAD: |
e015090f | 1278 | log_info("Reloading."); |
a16e1123 LP |
1279 | if ((r = manager_reload(m)) < 0) |
1280 | log_error("Failed to reload: %s", strerror(-r)); | |
1281 | break; | |
cea8e32e | 1282 | |
a16e1123 | 1283 | case MANAGER_REEXECUTE: |
a16e1123 LP |
1284 | if (prepare_reexecute(m, &serialization, &fds) < 0) |
1285 | goto finish; | |
60918275 | 1286 | |
a16e1123 | 1287 | reexecute = true; |
e015090f | 1288 | log_notice("Reexecuting."); |
a16e1123 LP |
1289 | goto finish; |
1290 | ||
b9080b03 FF |
1291 | case MANAGER_REBOOT: |
1292 | case MANAGER_POWEROFF: | |
1293 | case MANAGER_HALT: | |
1294 | case MANAGER_KEXEC: { | |
1295 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1296 | [MANAGER_REBOOT] = "reboot", | |
1297 | [MANAGER_POWEROFF] = "poweroff", | |
1298 | [MANAGER_HALT] = "halt", | |
1299 | [MANAGER_KEXEC] = "kexec" | |
1300 | }; | |
1301 | ||
1302 | assert_se(shutdown_verb = table[m->exit_code]); | |
1303 | ||
1304 | log_notice("Shutting down."); | |
1305 | goto finish; | |
1306 | } | |
1307 | ||
a16e1123 LP |
1308 | default: |
1309 | assert_not_reached("Unknown exit code."); | |
1310 | } | |
1311 | } | |
f170852a | 1312 | |
60918275 LP |
1313 | finish: |
1314 | if (m) | |
1315 | manager_free(m); | |
1316 | ||
fa0f4d8a | 1317 | free(arg_default_unit); |
06d4c99a | 1318 | strv_free(arg_default_controllers); |
b9cd2ec1 | 1319 | |
ea430986 LP |
1320 | dbus_shutdown(); |
1321 | ||
b2bb3dbe LP |
1322 | label_finish(); |
1323 | ||
a16e1123 | 1324 | if (reexecute) { |
6e98720f | 1325 | const char *args[15]; |
a16e1123 LP |
1326 | unsigned i = 0; |
1327 | char sfd[16]; | |
1328 | ||
1329 | assert(serialization); | |
1330 | assert(fds); | |
1331 | ||
1332 | args[i++] = SYSTEMD_BINARY_PATH; | |
1333 | ||
1334 | args[i++] = "--log-level"; | |
1335 | args[i++] = log_level_to_string(log_get_max_level()); | |
1336 | ||
1337 | args[i++] = "--log-target"; | |
1338 | args[i++] = log_target_to_string(log_get_target()); | |
1339 | ||
edb9aaa8 LP |
1340 | if (arg_running_as == MANAGER_SYSTEM) |
1341 | args[i++] = "--system"; | |
1342 | else | |
af2d49f7 | 1343 | args[i++] = "--user"; |
edb9aaa8 LP |
1344 | |
1345 | if (arg_dump_core) | |
1346 | args[i++] = "--dump-core"; | |
1347 | ||
1348 | if (arg_crash_shell) | |
1349 | args[i++] = "--crash-shell"; | |
1350 | ||
1351 | if (arg_confirm_spawn) | |
1352 | args[i++] = "--confirm-spawn"; | |
1353 | ||
1354 | if (arg_show_status) | |
6e98720f LP |
1355 | args[i++] = "--show-status=1"; |
1356 | else | |
1357 | args[i++] = "--show-status=0"; | |
1358 | ||
07459bb6 | 1359 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
1360 | if (arg_sysv_console) |
1361 | args[i++] = "--sysv-console=1"; | |
1362 | else | |
1363 | args[i++] = "--sysv-console=0"; | |
07459bb6 | 1364 | #endif |
a16e1123 LP |
1365 | |
1366 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); | |
1367 | char_array_0(sfd); | |
1368 | ||
1369 | args[i++] = "--deserialize"; | |
1370 | args[i++] = sfd; | |
1371 | ||
a16e1123 LP |
1372 | args[i++] = NULL; |
1373 | ||
1374 | assert(i <= ELEMENTSOF(args)); | |
1375 | ||
1376 | execv(args[0], (char* const*) args); | |
1377 | ||
1378 | log_error("Failed to reexecute: %m"); | |
1379 | } | |
1380 | ||
1381 | if (serialization) | |
1382 | fclose(serialization); | |
1383 | ||
1384 | if (fds) | |
1385 | fdset_free(fds); | |
1386 | ||
b9080b03 FF |
1387 | if (shutdown_verb) { |
1388 | const char * command_line[] = { | |
1389 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1390 | shutdown_verb, | |
1391 | NULL | |
1392 | }; | |
1393 | ||
1394 | execv(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line); | |
1395 | log_error("Failed to execute shutdown binary, freezing: %m"); | |
1396 | } | |
1397 | ||
c3b3c274 LP |
1398 | if (getpid() == 1) |
1399 | freeze(); | |
1400 | ||
60918275 LP |
1401 | return retval; |
1402 | } |