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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" |
302e8c4c | 44 | #include "load-fragment.h" |
a16e1123 | 45 | #include "fdset.h" |
514f4ef5 | 46 | #include "special.h" |
487393e9 | 47 | #include "conf-parser.h" |
398ef8ba | 48 | #include "bus-errors.h" |
ad780f19 | 49 | #include "missing.h" |
e51bc1a2 | 50 | #include "label.h" |
302e27c8 | 51 | #include "build.h" |
06d4c99a | 52 | #include "strv.h" |
60918275 | 53 | |
f170852a LP |
54 | static enum { |
55 | ACTION_RUN, | |
e965d56d | 56 | ACTION_HELP, |
e537352b | 57 | ACTION_TEST, |
4288f619 LP |
58 | ACTION_DUMP_CONFIGURATION_ITEMS, |
59 | ACTION_DONE | |
fa0f4d8a | 60 | } arg_action = ACTION_RUN; |
f170852a | 61 | |
fa0f4d8a LP |
62 | static char *arg_default_unit = NULL; |
63 | static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; | |
64 | ||
65 | static bool arg_dump_core = true; | |
66 | static bool arg_crash_shell = false; | |
67 | static int arg_crash_chvt = -1; | |
68 | static bool arg_confirm_spawn = false; | |
9e58ff9c | 69 | static bool arg_show_status = true; |
07459bb6 | 70 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 71 | static bool arg_sysv_console = true; |
07459bb6 | 72 | #endif |
d3689161 | 73 | static bool arg_mount_auto = true; |
173a8d04 | 74 | static bool arg_swap_auto = true; |
06d4c99a | 75 | static char **arg_default_controllers = NULL; |
934da035 | 76 | static ExecOutput arg_default_std_output = EXEC_OUTPUT_INHERIT; |
0a494f1f | 77 | static ExecOutput arg_default_std_error = EXEC_OUTPUT_INHERIT; |
4fc935ca | 78 | |
a16e1123 | 79 | static FILE* serialization = NULL; |
80876c20 | 80 | |
6f5e3f35 LP |
81 | static void nop_handler(int sig) { |
82 | } | |
83 | ||
93a46b0b | 84 | _noreturn_ static void crash(int sig) { |
97c4f35c | 85 | |
fa0f4d8a | 86 | if (!arg_dump_core) |
582a507f | 87 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 88 | else { |
6f5e3f35 | 89 | struct sigaction sa; |
97c4f35c LP |
90 | pid_t pid; |
91 | ||
6f5e3f35 LP |
92 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
93 | zero(sa); | |
94 | sa.sa_handler = nop_handler; | |
95 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
96 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
97 | ||
97c4f35c | 98 | if ((pid = fork()) < 0) |
582a507f | 99 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
100 | |
101 | else if (pid == 0) { | |
97c4f35c LP |
102 | struct rlimit rl; |
103 | ||
104 | /* Enable default signal handler for core dump */ | |
105 | zero(sa); | |
106 | sa.sa_handler = SIG_DFL; | |
107 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
108 | ||
109 | /* Don't limit the core dump size */ | |
110 | zero(rl); | |
111 | rl.rlim_cur = RLIM_INFINITY; | |
112 | rl.rlim_max = RLIM_INFINITY; | |
113 | setrlimit(RLIMIT_CORE, &rl); | |
114 | ||
115 | /* Just to be sure... */ | |
116 | assert_se(chdir("/") == 0); | |
117 | ||
118 | /* Raise the signal again */ | |
119 | raise(sig); | |
120 | ||
121 | assert_not_reached("We shouldn't be here..."); | |
122 | _exit(1); | |
4fc935ca LP |
123 | |
124 | } else { | |
8e12a6ae LP |
125 | siginfo_t status; |
126 | int r; | |
4fc935ca LP |
127 | |
128 | /* Order things nicely. */ | |
8e12a6ae LP |
129 | if ((r = wait_for_terminate(pid, &status)) < 0) |
130 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(-r)); | |
131 | else if (status.si_code != CLD_DUMPED) | |
582a507f | 132 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 133 | else |
582a507f | 134 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
135 | } |
136 | } | |
137 | ||
fa0f4d8a LP |
138 | if (arg_crash_chvt) |
139 | chvt(arg_crash_chvt); | |
601f6a1e | 140 | |
fa0f4d8a | 141 | if (arg_crash_shell) { |
6f5e3f35 LP |
142 | struct sigaction sa; |
143 | pid_t pid; | |
8c43883a | 144 | |
4fc935ca LP |
145 | log_info("Executing crash shell in 10s..."); |
146 | sleep(10); | |
147 | ||
6f5e3f35 LP |
148 | /* Let the kernel reap children for us */ |
149 | zero(sa); | |
150 | sa.sa_handler = SIG_IGN; | |
151 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
152 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 153 | |
6f5e3f35 LP |
154 | if ((pid = fork()) < 0) |
155 | log_error("Failed to fork off crash shell: %s", strerror(errno)); | |
156 | else if (pid == 0) { | |
843d2643 | 157 | int fd, r; |
ea5652c2 | 158 | |
21de3988 | 159 | if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0) |
ea5652c2 | 160 | log_error("Failed to acquire terminal: %s", strerror(-fd)); |
5b2a0903 | 161 | else if ((r = make_stdio(fd)) < 0) |
843d2643 | 162 | log_error("Failed to duplicate terminal fd: %s", strerror(-r)); |
ea5652c2 | 163 | |
6f5e3f35 LP |
164 | execl("/bin/sh", "/bin/sh", NULL); |
165 | ||
166 | log_error("execl() failed: %s", strerror(errno)); | |
167 | _exit(1); | |
168 | } | |
c99b188e | 169 | |
bb00e604 | 170 | log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
171 | } |
172 | ||
173 | log_info("Freezing execution."); | |
97c4f35c LP |
174 | freeze(); |
175 | } | |
176 | ||
177 | static void install_crash_handler(void) { | |
178 | struct sigaction sa; | |
179 | ||
180 | zero(sa); | |
181 | ||
182 | sa.sa_handler = crash; | |
183 | sa.sa_flags = SA_NODEFER; | |
184 | ||
1b91d3e8 | 185 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 186 | } |
f170852a | 187 | |
843d2643 LP |
188 | static int console_setup(bool do_reset) { |
189 | int tty_fd, r; | |
80876c20 | 190 | |
843d2643 LP |
191 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
192 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 193 | |
843d2643 LP |
194 | release_terminal(); |
195 | ||
196 | if (!do_reset) | |
197 | return 0; | |
80876c20 | 198 | |
843d2643 LP |
199 | if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) { |
200 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); | |
201 | return -tty_fd; | |
202 | } | |
80876c20 | 203 | |
843d2643 LP |
204 | if ((r = reset_terminal(tty_fd)) < 0) |
205 | log_error("Failed to reset /dev/console: %s", strerror(-r)); | |
206 | ||
207 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
208 | return r; |
209 | } | |
210 | ||
f170852a LP |
211 | static int set_default_unit(const char *u) { |
212 | char *c; | |
213 | ||
214 | assert(u); | |
215 | ||
216 | if (!(c = strdup(u))) | |
217 | return -ENOMEM; | |
218 | ||
fa0f4d8a LP |
219 | free(arg_default_unit); |
220 | arg_default_unit = c; | |
f170852a LP |
221 | return 0; |
222 | } | |
223 | ||
224 | static int parse_proc_cmdline_word(const char *word) { | |
225 | ||
226 | static const char * const rlmap[] = { | |
ed370f5d LP |
227 | "emergency", SPECIAL_EMERGENCY_TARGET, |
228 | "single", SPECIAL_RESCUE_TARGET, | |
229 | "-s", SPECIAL_RESCUE_TARGET, | |
230 | "s", SPECIAL_RESCUE_TARGET, | |
231 | "S", SPECIAL_RESCUE_TARGET, | |
232 | "1", SPECIAL_RESCUE_TARGET, | |
233 | "2", SPECIAL_RUNLEVEL2_TARGET, | |
234 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
235 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
236 | "5", SPECIAL_RUNLEVEL5_TARGET, | |
f170852a LP |
237 | }; |
238 | ||
5192bd19 LP |
239 | assert(word); |
240 | ||
2f198e2f LP |
241 | if (startswith(word, "systemd.unit=")) |
242 | return set_default_unit(word + 13); | |
f170852a LP |
243 | |
244 | else if (startswith(word, "systemd.log_target=")) { | |
245 | ||
246 | if (log_set_target_from_string(word + 19) < 0) | |
247 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
248 | ||
249 | } else if (startswith(word, "systemd.log_level=")) { | |
250 | ||
251 | if (log_set_max_level_from_string(word + 18) < 0) | |
252 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
253 | ||
bbe63281 LP |
254 | } else if (startswith(word, "systemd.log_color=")) { |
255 | ||
256 | if (log_show_color_from_string(word + 18) < 0) | |
257 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
258 | ||
259 | } else if (startswith(word, "systemd.log_location=")) { | |
260 | ||
261 | if (log_show_location_from_string(word + 21) < 0) | |
262 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
263 | ||
4fc935ca LP |
264 | } else if (startswith(word, "systemd.dump_core=")) { |
265 | int r; | |
266 | ||
267 | if ((r = parse_boolean(word + 18)) < 0) | |
601f6a1e | 268 | log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18); |
4fc935ca | 269 | else |
fa0f4d8a | 270 | arg_dump_core = r; |
4fc935ca LP |
271 | |
272 | } else if (startswith(word, "systemd.crash_shell=")) { | |
273 | int r; | |
274 | ||
275 | if ((r = parse_boolean(word + 20)) < 0) | |
601f6a1e | 276 | log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20); |
4fc935ca | 277 | else |
fa0f4d8a | 278 | arg_crash_shell = r; |
5e7ee61c LP |
279 | |
280 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
281 | int r; | |
282 | ||
283 | if ((r = parse_boolean(word + 22)) < 0) | |
284 | log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22); | |
285 | else | |
fa0f4d8a | 286 | arg_confirm_spawn = r; |
5e7ee61c | 287 | |
601f6a1e LP |
288 | } else if (startswith(word, "systemd.crash_chvt=")) { |
289 | int k; | |
290 | ||
291 | if (safe_atoi(word + 19, &k) < 0) | |
292 | log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19); | |
293 | else | |
fa0f4d8a | 294 | arg_crash_chvt = k; |
601f6a1e | 295 | |
9e58ff9c LP |
296 | } else if (startswith(word, "systemd.show_status=")) { |
297 | int r; | |
298 | ||
299 | if ((r = parse_boolean(word + 20)) < 0) | |
300 | log_warning("Failed to parse show status switch %s, Ignoring.", word + 20); | |
6e98720f | 301 | else |
9e58ff9c | 302 | arg_show_status = r; |
0a494f1f LP |
303 | } else if (startswith(word, "systemd.default_standard_output=")) { |
304 | int r; | |
305 | ||
306 | if ((r = exec_output_from_string(word + 32)) < 0) | |
307 | log_warning("Failed to parse default standard output switch %s, Ignoring.", word + 32); | |
308 | else | |
309 | arg_default_std_output = r; | |
310 | } else if (startswith(word, "systemd.default_standard_error=")) { | |
311 | int r; | |
312 | ||
313 | if ((r = exec_output_from_string(word + 31)) < 0) | |
314 | log_warning("Failed to parse default standard error switch %s, Ignoring.", word + 31); | |
315 | else | |
316 | arg_default_std_error = r; | |
07459bb6 | 317 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
318 | } else if (startswith(word, "systemd.sysv_console=")) { |
319 | int r; | |
320 | ||
321 | if ((r = parse_boolean(word + 21)) < 0) | |
322 | log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20); | |
323 | else | |
324 | arg_sysv_console = r; | |
07459bb6 | 325 | #endif |
9e58ff9c | 326 | |
4fc935ca LP |
327 | } else if (startswith(word, "systemd.")) { |
328 | ||
329 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
330 | ||
bbe63281 LP |
331 | log_info("Supported kernel switches:\n" |
332 | "systemd.unit=UNIT Default unit to start\n" | |
bbe63281 | 333 | "systemd.dump_core=0|1 Dump core on crash\n" |
9e58ff9c | 334 | "systemd.crash_shell=0|1 Run shell on crash\n" |
bbe63281 | 335 | "systemd.crash_chvt=N Change to VT #N on crash\n" |
9e58ff9c | 336 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" |
6e98720f | 337 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" |
07459bb6 | 338 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 339 | "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n" |
07459bb6 | 340 | #endif |
87d1969b | 341 | "systemd.log_target=console|kmsg|syslog|syslog-or-kmsg|null\n" |
6e98720f LP |
342 | " Log target\n" |
343 | "systemd.log_level=LEVEL Log level\n" | |
344 | "systemd.log_color=0|1 Highlight important log messages\n" | |
0a494f1f LP |
345 | "systemd.log_location=0|1 Include code location in log messages\n" |
346 | "systemd.default_standard_output=null|tty|syslog|syslog+console|kmsg|kmsg+console\n" | |
347 | " Set default log output for services\n" | |
348 | "systemd.default_standard_error=null|tty|syslog|syslog+console|kmsg|kmsg+console\n" | |
349 | " Set default log error output for services\n"); | |
4fc935ca | 350 | |
a9c501a5 | 351 | } else if (streq(word, "quiet")) { |
6e98720f | 352 | arg_show_status = false; |
07459bb6 | 353 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 354 | arg_sysv_console = false; |
07459bb6 | 355 | #endif |
9e58ff9c | 356 | } else { |
f170852a LP |
357 | unsigned i; |
358 | ||
359 | /* SysV compatibility */ | |
f170852a LP |
360 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
361 | if (streq(word, rlmap[i])) | |
362 | return set_default_unit(rlmap[i+1]); | |
363 | } | |
364 | ||
365 | return 0; | |
366 | } | |
367 | ||
487393e9 LP |
368 | static int config_parse_level( |
369 | const char *filename, | |
370 | unsigned line, | |
371 | const char *section, | |
372 | const char *lvalue, | |
373 | const char *rvalue, | |
374 | void *data, | |
375 | void *userdata) { | |
376 | ||
377 | assert(filename); | |
378 | assert(lvalue); | |
379 | assert(rvalue); | |
380 | ||
381 | log_set_max_level_from_string(rvalue); | |
382 | return 0; | |
383 | } | |
384 | ||
385 | static int config_parse_target( | |
386 | const char *filename, | |
387 | unsigned line, | |
388 | const char *section, | |
389 | const char *lvalue, | |
390 | const char *rvalue, | |
391 | void *data, | |
392 | void *userdata) { | |
393 | ||
394 | assert(filename); | |
395 | assert(lvalue); | |
396 | assert(rvalue); | |
397 | ||
398 | log_set_target_from_string(rvalue); | |
399 | return 0; | |
400 | } | |
401 | ||
402 | static int config_parse_color( | |
403 | const char *filename, | |
404 | unsigned line, | |
405 | const char *section, | |
406 | const char *lvalue, | |
407 | const char *rvalue, | |
408 | void *data, | |
409 | void *userdata) { | |
410 | ||
411 | assert(filename); | |
412 | assert(lvalue); | |
413 | assert(rvalue); | |
414 | ||
415 | log_show_color_from_string(rvalue); | |
416 | return 0; | |
417 | } | |
418 | ||
419 | static int config_parse_location( | |
420 | const char *filename, | |
421 | unsigned line, | |
422 | const char *section, | |
423 | const char *lvalue, | |
424 | const char *rvalue, | |
425 | void *data, | |
426 | void *userdata) { | |
427 | ||
428 | assert(filename); | |
429 | assert(lvalue); | |
430 | assert(rvalue); | |
431 | ||
432 | log_show_location_from_string(rvalue); | |
433 | return 0; | |
434 | } | |
435 | ||
436 | static int config_parse_cpu_affinity( | |
437 | const char *filename, | |
438 | unsigned line, | |
439 | const char *section, | |
440 | const char *lvalue, | |
441 | const char *rvalue, | |
442 | void *data, | |
443 | void *userdata) { | |
444 | ||
445 | char *w; | |
446 | size_t l; | |
447 | char *state; | |
448 | cpu_set_t *c = NULL; | |
449 | unsigned ncpus = 0; | |
450 | ||
451 | assert(filename); | |
452 | assert(lvalue); | |
453 | assert(rvalue); | |
454 | ||
f60f22df | 455 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
456 | char *t; |
457 | int r; | |
458 | unsigned cpu; | |
459 | ||
460 | if (!(t = strndup(w, l))) | |
461 | return -ENOMEM; | |
462 | ||
463 | r = safe_atou(t, &cpu); | |
464 | free(t); | |
465 | ||
466 | if (!c) | |
467 | if (!(c = cpu_set_malloc(&ncpus))) | |
468 | return -ENOMEM; | |
469 | ||
470 | if (r < 0 || cpu >= ncpus) { | |
471 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
472 | CPU_FREE(c); | |
473 | return -EBADMSG; | |
474 | } | |
475 | ||
476 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
477 | } | |
478 | ||
479 | if (c) { | |
480 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
481 | log_warning("Failed to set CPU affinity: %m"); | |
482 | ||
483 | CPU_FREE(c); | |
484 | } | |
485 | ||
486 | return 0; | |
487 | } | |
488 | ||
0a494f1f LP |
489 | static DEFINE_CONFIG_PARSE_ENUM(config_parse_output, exec_output, ExecOutput, "Failed to parse output specifier"); |
490 | ||
487393e9 LP |
491 | static int parse_config_file(void) { |
492 | ||
493 | const ConfigItem items[] = { | |
0a494f1f LP |
494 | { "LogLevel", config_parse_level, NULL, "Manager" }, |
495 | { "LogTarget", config_parse_target, NULL, "Manager" }, | |
496 | { "LogColor", config_parse_color, NULL, "Manager" }, | |
497 | { "LogLocation", config_parse_location, NULL, "Manager" }, | |
498 | { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" }, | |
499 | { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" }, | |
500 | { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" }, | |
07459bb6 | 501 | #ifdef HAVE_SYSV_COMPAT |
0a494f1f | 502 | { "SysVConsole", config_parse_bool, &arg_sysv_console, "Manager" }, |
07459bb6 | 503 | #endif |
0a494f1f LP |
504 | { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" }, |
505 | { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" }, | |
506 | { "MountAuto", config_parse_bool, &arg_mount_auto, "Manager" }, | |
507 | { "SwapAuto", config_parse_bool, &arg_swap_auto, "Manager" }, | |
508 | { "DefaultControllers", config_parse_strv, &arg_default_controllers, "Manager" }, | |
509 | { "DefaultStandardOutput", config_parse_output, &arg_default_std_output, "Manager" }, | |
510 | { "DefaultStandardError", config_parse_output, &arg_default_std_error, "Manager" }, | |
487393e9 LP |
511 | { NULL, NULL, NULL, NULL } |
512 | }; | |
513 | ||
514 | static const char * const sections[] = { | |
515 | "Manager", | |
516 | NULL | |
517 | }; | |
518 | ||
519 | FILE *f; | |
520 | const char *fn; | |
521 | int r; | |
522 | ||
af2d49f7 | 523 | fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : USER_CONFIG_FILE; |
487393e9 LP |
524 | |
525 | if (!(f = fopen(fn, "re"))) { | |
526 | if (errno == ENOENT) | |
527 | return 0; | |
528 | ||
529 | log_warning("Failed to open configuration file '%s': %m", fn); | |
530 | return 0; | |
531 | } | |
532 | ||
533 | if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0) | |
534 | log_warning("Failed to parse configuration file: %s", strerror(-r)); | |
535 | ||
536 | fclose(f); | |
537 | ||
538 | return 0; | |
539 | } | |
540 | ||
f170852a | 541 | static int parse_proc_cmdline(void) { |
52661efd | 542 | char *line, *w, *state; |
f170852a | 543 | int r; |
f170852a | 544 | size_t l; |
f170852a LP |
545 | |
546 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { | |
e364ad06 | 547 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
548 | return 0; |
549 | } | |
550 | ||
551 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
552 | char *word; | |
553 | ||
554 | if (!(word = strndup(w, l))) { | |
555 | r = -ENOMEM; | |
556 | goto finish; | |
557 | } | |
558 | ||
559 | r = parse_proc_cmdline_word(word); | |
560 | free(word); | |
561 | ||
562 | if (r < 0) | |
563 | goto finish; | |
564 | } | |
565 | ||
566 | r = 0; | |
567 | ||
568 | finish: | |
569 | free(line); | |
570 | return r; | |
571 | } | |
572 | ||
573 | static int parse_argv(int argc, char *argv[]) { | |
574 | ||
575 | enum { | |
576 | ARG_LOG_LEVEL = 0x100, | |
577 | ARG_LOG_TARGET, | |
bbe63281 LP |
578 | ARG_LOG_COLOR, |
579 | ARG_LOG_LOCATION, | |
2f198e2f | 580 | ARG_UNIT, |
edb9aaa8 | 581 | ARG_SYSTEM, |
af2d49f7 | 582 | ARG_USER, |
e537352b | 583 | ARG_TEST, |
80876c20 | 584 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
585 | ARG_DUMP_CORE, |
586 | ARG_CRASH_SHELL, | |
a16e1123 | 587 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 588 | ARG_SHOW_STATUS, |
6e98720f | 589 | ARG_SYSV_CONSOLE, |
4288f619 | 590 | ARG_DESERIALIZE, |
0a494f1f LP |
591 | ARG_INTROSPECT, |
592 | ARG_DEFAULT_STD_OUTPUT, | |
593 | ARG_DEFAULT_STD_ERROR | |
f170852a LP |
594 | }; |
595 | ||
596 | static const struct option options[] = { | |
a16e1123 LP |
597 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
598 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
599 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
600 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 601 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 | 602 | { "system", no_argument, NULL, ARG_SYSTEM }, |
af2d49f7 | 603 | { "user", no_argument, NULL, ARG_USER }, |
a16e1123 LP |
604 | { "test", no_argument, NULL, ARG_TEST }, |
605 | { "help", no_argument, NULL, 'h' }, | |
606 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, | |
9e58ff9c LP |
607 | { "dump-core", no_argument, NULL, ARG_DUMP_CORE }, |
608 | { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL }, | |
a16e1123 | 609 | { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN }, |
6e98720f | 610 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
07459bb6 | 611 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 612 | { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE }, |
07459bb6 | 613 | #endif |
a16e1123 | 614 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
4288f619 | 615 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
0a494f1f LP |
616 | { "default-standard-output", required_argument, NULL, ARG_DEFAULT_STD_OUTPUT, }, |
617 | { "default-standard-error", required_argument, NULL, ARG_DEFAULT_STD_ERROR, }, | |
a16e1123 | 618 | { NULL, 0, NULL, 0 } |
f170852a LP |
619 | }; |
620 | ||
621 | int c, r; | |
622 | ||
623 | assert(argc >= 1); | |
624 | assert(argv); | |
625 | ||
1d2e23ab | 626 | while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0) |
f170852a LP |
627 | |
628 | switch (c) { | |
629 | ||
630 | case ARG_LOG_LEVEL: | |
631 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
632 | log_error("Failed to parse log level %s.", optarg); | |
633 | return r; | |
634 | } | |
635 | ||
636 | break; | |
637 | ||
638 | case ARG_LOG_TARGET: | |
639 | ||
640 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
641 | log_error("Failed to parse log target %s.", optarg); | |
642 | return r; | |
643 | } | |
644 | ||
645 | break; | |
646 | ||
bbe63281 LP |
647 | case ARG_LOG_COLOR: |
648 | ||
d0b170c8 LP |
649 | if (optarg) { |
650 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
651 | log_error("Failed to parse log color setting %s.", optarg); | |
652 | return r; | |
653 | } | |
654 | } else | |
655 | log_show_color(true); | |
bbe63281 LP |
656 | |
657 | break; | |
658 | ||
659 | case ARG_LOG_LOCATION: | |
660 | ||
d0b170c8 LP |
661 | if (optarg) { |
662 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
663 | log_error("Failed to parse log location setting %s.", optarg); | |
664 | return r; | |
665 | } | |
666 | } else | |
667 | log_show_location(true); | |
bbe63281 LP |
668 | |
669 | break; | |
670 | ||
0a494f1f LP |
671 | case ARG_DEFAULT_STD_OUTPUT: |
672 | ||
673 | if ((r = exec_output_from_string(optarg)) < 0) { | |
674 | log_error("Failed to parse default standard output setting %s.", optarg); | |
675 | return r; | |
676 | } else | |
677 | arg_default_std_output = r; | |
678 | break; | |
679 | ||
680 | case ARG_DEFAULT_STD_ERROR: | |
681 | ||
682 | if ((r = exec_output_from_string(optarg)) < 0) { | |
683 | log_error("Failed to parse default standard error output setting %s.", optarg); | |
684 | return r; | |
685 | } else | |
686 | arg_default_std_error = r; | |
687 | break; | |
688 | ||
2f198e2f | 689 | case ARG_UNIT: |
f170852a LP |
690 | |
691 | if ((r = set_default_unit(optarg)) < 0) { | |
692 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
693 | return r; | |
694 | } | |
695 | ||
696 | break; | |
697 | ||
edb9aaa8 LP |
698 | case ARG_SYSTEM: |
699 | arg_running_as = MANAGER_SYSTEM; | |
700 | break; | |
a5dab5ce | 701 | |
af2d49f7 LP |
702 | case ARG_USER: |
703 | arg_running_as = MANAGER_USER; | |
a5dab5ce | 704 | break; |
a5dab5ce | 705 | |
e965d56d | 706 | case ARG_TEST: |
fa0f4d8a | 707 | arg_action = ACTION_TEST; |
e965d56d LP |
708 | break; |
709 | ||
e537352b | 710 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 711 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
712 | break; |
713 | ||
9e58ff9c LP |
714 | case ARG_DUMP_CORE: |
715 | arg_dump_core = true; | |
716 | break; | |
717 | ||
718 | case ARG_CRASH_SHELL: | |
719 | arg_crash_shell = true; | |
720 | break; | |
721 | ||
80876c20 | 722 | case ARG_CONFIRM_SPAWN: |
fa0f4d8a | 723 | arg_confirm_spawn = true; |
80876c20 LP |
724 | break; |
725 | ||
9e58ff9c | 726 | case ARG_SHOW_STATUS: |
6e98720f LP |
727 | |
728 | if (optarg) { | |
729 | if ((r = parse_boolean(optarg)) < 0) { | |
730 | log_error("Failed to show status boolean %s.", optarg); | |
731 | return r; | |
732 | } | |
733 | arg_show_status = r; | |
734 | } else | |
735 | arg_show_status = true; | |
736 | break; | |
07459bb6 | 737 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
738 | case ARG_SYSV_CONSOLE: |
739 | ||
740 | if (optarg) { | |
741 | if ((r = parse_boolean(optarg)) < 0) { | |
742 | log_error("Failed to SysV console boolean %s.", optarg); | |
743 | return r; | |
744 | } | |
745 | arg_sysv_console = r; | |
746 | } else | |
747 | arg_sysv_console = true; | |
9e58ff9c | 748 | break; |
07459bb6 | 749 | #endif |
9e58ff9c | 750 | |
a16e1123 LP |
751 | case ARG_DESERIALIZE: { |
752 | int fd; | |
753 | FILE *f; | |
754 | ||
755 | if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) { | |
756 | log_error("Failed to parse deserialize option %s.", optarg); | |
757 | return r; | |
758 | } | |
759 | ||
760 | if (!(f = fdopen(fd, "r"))) { | |
761 | log_error("Failed to open serialization fd: %m"); | |
762 | return r; | |
763 | } | |
764 | ||
765 | if (serialization) | |
766 | fclose(serialization); | |
767 | ||
768 | serialization = f; | |
769 | ||
770 | break; | |
771 | } | |
772 | ||
4288f619 LP |
773 | case ARG_INTROSPECT: { |
774 | const char * const * i = NULL; | |
775 | ||
776 | for (i = bus_interface_table; *i; i += 2) | |
777 | if (!optarg || streq(i[0], optarg)) { | |
778 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
779 | "<node>\n", stdout); | |
780 | fputs(i[1], stdout); | |
781 | fputs("</node>\n", stdout); | |
782 | ||
783 | if (optarg) | |
784 | break; | |
785 | } | |
786 | ||
787 | if (!i[0] && optarg) | |
788 | log_error("Unknown interface %s.", optarg); | |
789 | ||
fa0f4d8a | 790 | arg_action = ACTION_DONE; |
4288f619 LP |
791 | break; |
792 | } | |
793 | ||
f170852a | 794 | case 'h': |
fa0f4d8a | 795 | arg_action = ACTION_HELP; |
f170852a LP |
796 | break; |
797 | ||
1d2e23ab LP |
798 | case 'D': |
799 | log_set_max_level(LOG_DEBUG); | |
800 | break; | |
801 | ||
f170852a LP |
802 | case '?': |
803 | return -EINVAL; | |
804 | ||
805 | default: | |
806 | log_error("Unknown option code %c", c); | |
807 | return -EINVAL; | |
808 | } | |
809 | ||
51f0e189 LP |
810 | /* PID 1 will get the kernel arguments as parameters, which we |
811 | * ignore and unconditionally read from | |
812 | * /proc/cmdline. However, we need to ignore those arguments | |
813 | * here. */ | |
fa0f4d8a | 814 | if (arg_running_as != MANAGER_SYSTEM && optind < argc) { |
51f0e189 LP |
815 | log_error("Excess arguments."); |
816 | return -EINVAL; | |
817 | } | |
818 | ||
f170852a LP |
819 | return 0; |
820 | } | |
821 | ||
822 | static int help(void) { | |
823 | ||
2e33c433 | 824 | printf("%s [OPTIONS...]\n\n" |
af2d49f7 | 825 | "Starts up and maintains the system or user services.\n\n" |
e537352b | 826 | " -h --help Show this help\n" |
e537352b | 827 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 828 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 829 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 830 | " --unit=UNIT Set default unit\n" |
edb9aaa8 | 831 | " --system Run a system instance, even if PID != 1\n" |
af2d49f7 | 832 | " --user Run a user instance\n" |
9e58ff9c LP |
833 | " --dump-core Dump core on crash\n" |
834 | " --crash-shell Run shell on crash\n" | |
835 | " --confirm-spawn Ask for confirmation when spawning processes\n" | |
6e98720f | 836 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
07459bb6 | 837 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 838 | " --sysv-console[=0|1] Connect output of SysV scripts to console\n" |
07459bb6 | 839 | #endif |
bbe63281 | 840 | " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 841 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 842 | " --log-color[=0|1] Highlight important log messages\n" |
0a494f1f LP |
843 | " --log-location[=0|1] Include code location in log messages\n" |
844 | " --default-standard-output= Set default standard output for services\n" | |
845 | " --default-standard-error= Set default standard error output for services\n", | |
5b6319dc | 846 | program_invocation_short_name); |
f170852a LP |
847 | |
848 | return 0; | |
849 | } | |
850 | ||
a16e1123 LP |
851 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) { |
852 | FILE *f = NULL; | |
853 | FDSet *fds = NULL; | |
854 | int r; | |
855 | ||
856 | assert(m); | |
857 | assert(_f); | |
858 | assert(_fds); | |
859 | ||
d8d5ab98 | 860 | if ((r = manager_open_serialization(m, &f)) < 0) { |
a16e1123 LP |
861 | log_error("Failed to create serialization faile: %s", strerror(-r)); |
862 | goto fail; | |
863 | } | |
864 | ||
865 | if (!(fds = fdset_new())) { | |
866 | r = -ENOMEM; | |
867 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
868 | goto fail; | |
869 | } | |
870 | ||
871 | if ((r = manager_serialize(m, f, fds)) < 0) { | |
872 | log_error("Failed to serialize state: %s", strerror(-r)); | |
873 | goto fail; | |
874 | } | |
875 | ||
876 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
877 | log_error("Failed to rewind serialization fd: %m"); | |
878 | goto fail; | |
879 | } | |
880 | ||
881 | if ((r = fd_cloexec(fileno(f), false)) < 0) { | |
882 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); | |
883 | goto fail; | |
884 | } | |
885 | ||
886 | if ((r = fdset_cloexec(fds, false)) < 0) { | |
887 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); | |
888 | goto fail; | |
889 | } | |
890 | ||
891 | *_f = f; | |
892 | *_fds = fds; | |
893 | ||
894 | return 0; | |
895 | ||
896 | fail: | |
897 | fdset_free(fds); | |
898 | ||
899 | if (f) | |
900 | fclose(f); | |
901 | ||
902 | return r; | |
903 | } | |
904 | ||
e9ddabc2 LP |
905 | static struct dual_timestamp* parse_initrd_timestamp(struct dual_timestamp *t) { |
906 | const char *e; | |
907 | unsigned long long a, b; | |
908 | ||
909 | assert(t); | |
910 | ||
911 | if (!(e = getenv("RD_TIMESTAMP"))) | |
912 | return NULL; | |
913 | ||
914 | if (sscanf(e, "%llu %llu", &a, &b) != 2) | |
915 | return NULL; | |
916 | ||
917 | t->realtime = (usec_t) a; | |
918 | t->monotonic = (usec_t) b; | |
919 | ||
920 | return t; | |
921 | } | |
922 | ||
6ee5bbf8 LP |
923 | static void test_mtab(void) { |
924 | char *p; | |
925 | ||
926 | if (readlink_malloc("/etc/mtab", &p) >= 0) { | |
927 | bool b; | |
928 | ||
ed86ebc4 | 929 | b = streq(p, "/proc/self/mounts") || streq(p, "/proc/mounts"); |
6ee5bbf8 LP |
930 | free(p); |
931 | ||
932 | if (b) | |
933 | return; | |
934 | } | |
935 | ||
936 | log_error("/etc/mtab is not a symlink or not pointing to /proc/self/mounts. " | |
937 | "This is not supported anymore. " | |
938 | "Please make sure to replace this file by a symlink to avoid incorrect or misleading mount(8) output."); | |
939 | } | |
940 | ||
60918275 LP |
941 | int main(int argc, char *argv[]) { |
942 | Manager *m = NULL; | |
22f4096c | 943 | int r, retval = EXIT_FAILURE; |
a16e1123 LP |
944 | FDSet *fds = NULL; |
945 | bool reexecute = false; | |
b9080b03 | 946 | const char *shutdown_verb = NULL; |
e9ddabc2 | 947 | dual_timestamp initrd_timestamp = { 0ULL, 0ULL }; |
f3b6a3ed | 948 | char systemd[] = "systemd"; |
27b14a22 | 949 | |
2cb1a60d LP |
950 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
951 | /* This is compatbility support for SysV, where | |
952 | * calling init as a user is identical to telinit. */ | |
953 | ||
954 | errno = -ENOENT; | |
955 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
956 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
957 | return 1; | |
958 | } | |
959 | ||
f3b6a3ed LP |
960 | /* If we get started via the /sbin/init symlink then we are |
961 | called 'init'. After a subsequent reexecution we are then | |
962 | called 'systemd'. That is confusing, hence let's call us | |
963 | systemd right-away. */ | |
964 | ||
965 | program_invocation_short_name = systemd; | |
966 | prctl(PR_SET_NAME, systemd); | |
967 | ||
2cc59dbf | 968 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 969 | log_show_location(false); |
7c706717 | 970 | log_set_max_level(LOG_INFO); |
bbe63281 | 971 | |
843d2643 | 972 | if (getpid() == 1) { |
fa0f4d8a | 973 | arg_running_as = MANAGER_SYSTEM; |
843d2643 | 974 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); |
0ff4cdd9 | 975 | |
c4dcdb9f LP |
976 | /* This might actually not return, but cause a |
977 | * reexecution */ | |
978 | if (selinux_setup(argv) < 0) | |
979 | goto finish; | |
980 | ||
0ff4cdd9 LP |
981 | if (label_init() < 0) |
982 | goto finish; | |
bbe63281 | 983 | } else { |
af2d49f7 | 984 | arg_running_as = MANAGER_USER; |
bbe63281 LP |
985 | log_set_target(LOG_TARGET_CONSOLE); |
986 | } | |
a5dab5ce | 987 | |
f170852a LP |
988 | if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) |
989 | goto finish; | |
60918275 | 990 | |
f170852a LP |
991 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
992 | * /proc/$PID/fd is available. */ | |
ca326f6f | 993 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) |
8efe3c01 LP |
994 | if (mount_setup() < 0) |
995 | goto finish; | |
4ade7963 LP |
996 | |
997 | /* Reset all signal handlers. */ | |
998 | assert_se(reset_all_signal_handlers() == 0); | |
999 | ||
078e4539 | 1000 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 1001 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 1002 | |
487393e9 LP |
1003 | if (parse_config_file() < 0) |
1004 | goto finish; | |
1005 | ||
fa0f4d8a | 1006 | if (arg_running_as == MANAGER_SYSTEM) |
a5dab5ce LP |
1007 | if (parse_proc_cmdline() < 0) |
1008 | goto finish; | |
f170852a LP |
1009 | |
1010 | log_parse_environment(); | |
1011 | ||
1012 | if (parse_argv(argc, argv) < 0) | |
1013 | goto finish; | |
1014 | ||
b5c6cf87 LP |
1015 | if (arg_action == ACTION_TEST && geteuid() == 0) { |
1016 | log_error("Don't run test mode as root."); | |
1017 | goto finish; | |
1018 | } | |
1019 | ||
e1b2b494 LP |
1020 | /* If Plymouth is being run make sure we show the status, so |
1021 | * that there's something nice to see when people press Esc */ | |
1022 | if (access("/dev/.systemd/plymouth", F_OK) >= 0) | |
1023 | arg_show_status = true; | |
1024 | ||
fa0f4d8a | 1025 | if (arg_action == ACTION_HELP) { |
f170852a LP |
1026 | retval = help(); |
1027 | goto finish; | |
fa0f4d8a | 1028 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b | 1029 | unit_dump_config_items(stdout); |
22f4096c | 1030 | retval = EXIT_SUCCESS; |
e537352b | 1031 | goto finish; |
fa0f4d8a | 1032 | } else if (arg_action == ACTION_DONE) { |
22f4096c | 1033 | retval = EXIT_SUCCESS; |
4288f619 | 1034 | goto finish; |
f170852a LP |
1035 | } |
1036 | ||
fa0f4d8a | 1037 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 1038 | |
a16e1123 LP |
1039 | /* Remember open file descriptors for later deserialization */ |
1040 | if (serialization) { | |
1041 | if ((r = fdset_new_fill(&fds)) < 0) { | |
1042 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
1043 | goto finish; | |
1044 | } | |
1045 | ||
1046 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); | |
1047 | } else | |
1048 | close_all_fds(NULL, 0); | |
1049 | ||
09082a94 | 1050 | /* Set up PATH unless it is already set */ |
e537352b LP |
1051 | setenv("PATH", |
1052 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", | |
fa0f4d8a | 1053 | arg_running_as == MANAGER_SYSTEM); |
09082a94 | 1054 | |
39439087 | 1055 | if (arg_running_as == MANAGER_SYSTEM) { |
e9ddabc2 LP |
1056 | /* Parse the data passed to us by the initrd and unset it */ |
1057 | parse_initrd_timestamp(&initrd_timestamp); | |
1058 | filter_environ("RD_"); | |
1059 | ||
1060 | /* Unset some environment variables passed in from the | |
1061 | * kernel that don't really make sense for us. */ | |
39439087 LP |
1062 | unsetenv("HOME"); |
1063 | unsetenv("TERM"); | |
1064 | } | |
1104f3c1 | 1065 | |
f170852a LP |
1066 | /* Move out of the way, so that we won't block unmounts */ |
1067 | assert_se(chdir("/") == 0); | |
1068 | ||
fa0f4d8a | 1069 | if (arg_running_as == MANAGER_SYSTEM) { |
80876c20 LP |
1070 | /* Become a session leader if we aren't one yet. */ |
1071 | setsid(); | |
4ade7963 | 1072 | |
80876c20 LP |
1073 | /* Disable the umask logic */ |
1074 | umask(0); | |
1075 | } | |
1076 | ||
843d2643 LP |
1077 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
1078 | dbus_connection_set_change_sigpipe(FALSE); | |
1079 | ||
2146621b LP |
1080 | /* Reset the console, but only if this is really init and we |
1081 | * are freshly booted */ | |
fa0f4d8a | 1082 | if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { |
2146621b | 1083 | console_setup(getpid() == 1 && !serialization); |
843d2643 LP |
1084 | make_null_stdio(); |
1085 | } | |
4ade7963 | 1086 | |
18149b9f | 1087 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 1088 | log_open(); |
4ade7963 | 1089 | |
5373d602 LP |
1090 | /* Make sure we leave a core dump without panicing the |
1091 | * kernel. */ | |
4fc935ca LP |
1092 | if (getpid() == 1) |
1093 | install_crash_handler(); | |
97c4f35c | 1094 | |
302e27c8 | 1095 | log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, |
7d568925 | 1096 | PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES "; " DISTRIBUTION ")", manager_running_as_to_string(arg_running_as)); |
a5dab5ce | 1097 | |
888c6216 | 1098 | if (arg_running_as == MANAGER_SYSTEM && !serialization) { |
72bca11b LP |
1099 | locale_setup(); |
1100 | ||
888c6216 LP |
1101 | if (arg_show_status) |
1102 | status_welcome(); | |
1103 | ||
888c6216 LP |
1104 | kmod_setup(); |
1105 | hostname_setup(); | |
1106 | loopback_setup(); | |
490aed58 LP |
1107 | |
1108 | mkdir_p("/dev/.systemd/ask-password/", 0755); | |
6ee5bbf8 LP |
1109 | |
1110 | test_mtab(); | |
af5bc85d | 1111 | } |
302e8c4c | 1112 | |
9e58ff9c | 1113 | if ((r = manager_new(arg_running_as, &m)) < 0) { |
8e274523 | 1114 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
1115 | goto finish; |
1116 | } | |
1117 | ||
9e58ff9c LP |
1118 | m->confirm_spawn = arg_confirm_spawn; |
1119 | m->show_status = arg_show_status; | |
07459bb6 | 1120 | #ifdef HAVE_SYSV_COMPAT |
6e98720f | 1121 | m->sysv_console = arg_sysv_console; |
07459bb6 | 1122 | #endif |
d3689161 | 1123 | m->mount_auto = arg_mount_auto; |
173a8d04 | 1124 | m->swap_auto = arg_swap_auto; |
0a494f1f LP |
1125 | m->default_std_output = arg_default_std_output; |
1126 | m->default_std_error = arg_default_std_error; | |
9e58ff9c | 1127 | |
e9ddabc2 LP |
1128 | if (dual_timestamp_is_set(&initrd_timestamp)) |
1129 | m->initrd_timestamp = initrd_timestamp; | |
1130 | ||
06d4c99a LP |
1131 | if (arg_default_controllers) |
1132 | manager_set_default_controllers(m, arg_default_controllers); | |
1133 | ||
a16e1123 | 1134 | if ((r = manager_startup(m, serialization, fds)) < 0) |
6e2ef85b | 1135 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 LP |
1136 | |
1137 | if (fds) { | |
1138 | /* This will close all file descriptors that were opened, but | |
1139 | * not claimed by any unit. */ | |
1140 | ||
1141 | fdset_free(fds); | |
1142 | fds = NULL; | |
f50e0a01 LP |
1143 | } |
1144 | ||
a16e1123 LP |
1145 | if (serialization) { |
1146 | fclose(serialization); | |
1147 | serialization = NULL; | |
1148 | } else { | |
398ef8ba | 1149 | DBusError error; |
1c27d3f3 | 1150 | Unit *target = NULL; |
398ef8ba LP |
1151 | |
1152 | dbus_error_init(&error); | |
1153 | ||
fa0f4d8a | 1154 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1155 | |
398ef8ba LP |
1156 | if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) { |
1157 | log_error("Failed to load default target: %s", bus_error(&error, r)); | |
1158 | dbus_error_free(&error); | |
00dc5d76 | 1159 | } else if (target->meta.load_state == UNIT_ERROR) |
1c27d3f3 | 1160 | log_error("Failed to load default target: %s", strerror(-target->meta.load_error)); |
6daf4f90 LP |
1161 | else if (target->meta.load_state == UNIT_MASKED) |
1162 | log_error("Default target masked."); | |
27b14a22 | 1163 | |
1c27d3f3 | 1164 | if (!target || target->meta.load_state != UNIT_LOADED) { |
a16e1123 | 1165 | log_info("Trying to load rescue target..."); |
1c27d3f3 | 1166 | |
398ef8ba LP |
1167 | if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) { |
1168 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); | |
1169 | dbus_error_free(&error); | |
a16e1123 | 1170 | goto finish; |
00dc5d76 | 1171 | } else if (target->meta.load_state == UNIT_ERROR) { |
1c27d3f3 LP |
1172 | log_error("Failed to load rescue target: %s", strerror(-target->meta.load_error)); |
1173 | goto finish; | |
6daf4f90 LP |
1174 | } else if (target->meta.load_state == UNIT_MASKED) { |
1175 | log_error("Rescue target masked."); | |
00dc5d76 | 1176 | goto finish; |
a16e1123 LP |
1177 | } |
1178 | } | |
37d88da7 | 1179 | |
00dc5d76 LP |
1180 | assert(target->meta.load_state == UNIT_LOADED); |
1181 | ||
fa0f4d8a | 1182 | if (arg_action == ACTION_TEST) { |
40d50879 | 1183 | printf("-> By units:\n"); |
a16e1123 LP |
1184 | manager_dump_units(m, stdout, "\t"); |
1185 | } | |
1186 | ||
0ff4cdd9 | 1187 | if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) { |
398ef8ba LP |
1188 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1189 | dbus_error_free(&error); | |
37d88da7 LP |
1190 | goto finish; |
1191 | } | |
60918275 | 1192 | |
fa0f4d8a | 1193 | if (arg_action == ACTION_TEST) { |
40d50879 | 1194 | printf("-> By jobs:\n"); |
a16e1123 | 1195 | manager_dump_jobs(m, stdout, "\t"); |
22f4096c | 1196 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1197 | goto finish; |
1198 | } | |
e965d56d | 1199 | } |
d46de8a1 | 1200 | |
a16e1123 LP |
1201 | for (;;) { |
1202 | if ((r = manager_loop(m)) < 0) { | |
1203 | log_error("Failed to run mainloop: %s", strerror(-r)); | |
1204 | goto finish; | |
1205 | } | |
11dd41ce | 1206 | |
a16e1123 | 1207 | switch (m->exit_code) { |
e965d56d | 1208 | |
a16e1123 | 1209 | case MANAGER_EXIT: |
22f4096c | 1210 | retval = EXIT_SUCCESS; |
a16e1123 LP |
1211 | log_debug("Exit."); |
1212 | goto finish; | |
e965d56d | 1213 | |
a16e1123 | 1214 | case MANAGER_RELOAD: |
e015090f | 1215 | log_info("Reloading."); |
a16e1123 LP |
1216 | if ((r = manager_reload(m)) < 0) |
1217 | log_error("Failed to reload: %s", strerror(-r)); | |
1218 | break; | |
cea8e32e | 1219 | |
a16e1123 | 1220 | case MANAGER_REEXECUTE: |
a16e1123 LP |
1221 | if (prepare_reexecute(m, &serialization, &fds) < 0) |
1222 | goto finish; | |
60918275 | 1223 | |
a16e1123 | 1224 | reexecute = true; |
e015090f | 1225 | log_notice("Reexecuting."); |
a16e1123 LP |
1226 | goto finish; |
1227 | ||
b9080b03 FF |
1228 | case MANAGER_REBOOT: |
1229 | case MANAGER_POWEROFF: | |
1230 | case MANAGER_HALT: | |
1231 | case MANAGER_KEXEC: { | |
1232 | static const char * const table[_MANAGER_EXIT_CODE_MAX] = { | |
1233 | [MANAGER_REBOOT] = "reboot", | |
1234 | [MANAGER_POWEROFF] = "poweroff", | |
1235 | [MANAGER_HALT] = "halt", | |
1236 | [MANAGER_KEXEC] = "kexec" | |
1237 | }; | |
1238 | ||
1239 | assert_se(shutdown_verb = table[m->exit_code]); | |
1240 | ||
1241 | log_notice("Shutting down."); | |
1242 | goto finish; | |
1243 | } | |
1244 | ||
a16e1123 LP |
1245 | default: |
1246 | assert_not_reached("Unknown exit code."); | |
1247 | } | |
1248 | } | |
f170852a | 1249 | |
60918275 LP |
1250 | finish: |
1251 | if (m) | |
1252 | manager_free(m); | |
1253 | ||
fa0f4d8a | 1254 | free(arg_default_unit); |
06d4c99a | 1255 | strv_free(arg_default_controllers); |
b9cd2ec1 | 1256 | |
ea430986 LP |
1257 | dbus_shutdown(); |
1258 | ||
b2bb3dbe LP |
1259 | label_finish(); |
1260 | ||
a16e1123 | 1261 | if (reexecute) { |
6e98720f | 1262 | const char *args[15]; |
a16e1123 LP |
1263 | unsigned i = 0; |
1264 | char sfd[16]; | |
1265 | ||
1266 | assert(serialization); | |
1267 | assert(fds); | |
1268 | ||
1269 | args[i++] = SYSTEMD_BINARY_PATH; | |
1270 | ||
1271 | args[i++] = "--log-level"; | |
1272 | args[i++] = log_level_to_string(log_get_max_level()); | |
1273 | ||
1274 | args[i++] = "--log-target"; | |
1275 | args[i++] = log_target_to_string(log_get_target()); | |
1276 | ||
edb9aaa8 LP |
1277 | if (arg_running_as == MANAGER_SYSTEM) |
1278 | args[i++] = "--system"; | |
1279 | else | |
af2d49f7 | 1280 | args[i++] = "--user"; |
edb9aaa8 LP |
1281 | |
1282 | if (arg_dump_core) | |
1283 | args[i++] = "--dump-core"; | |
1284 | ||
1285 | if (arg_crash_shell) | |
1286 | args[i++] = "--crash-shell"; | |
1287 | ||
1288 | if (arg_confirm_spawn) | |
1289 | args[i++] = "--confirm-spawn"; | |
1290 | ||
1291 | if (arg_show_status) | |
6e98720f LP |
1292 | args[i++] = "--show-status=1"; |
1293 | else | |
1294 | args[i++] = "--show-status=0"; | |
1295 | ||
07459bb6 | 1296 | #ifdef HAVE_SYSV_COMPAT |
6e98720f LP |
1297 | if (arg_sysv_console) |
1298 | args[i++] = "--sysv-console=1"; | |
1299 | else | |
1300 | args[i++] = "--sysv-console=0"; | |
07459bb6 | 1301 | #endif |
a16e1123 LP |
1302 | |
1303 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); | |
1304 | char_array_0(sfd); | |
1305 | ||
1306 | args[i++] = "--deserialize"; | |
1307 | args[i++] = sfd; | |
1308 | ||
a16e1123 LP |
1309 | args[i++] = NULL; |
1310 | ||
1311 | assert(i <= ELEMENTSOF(args)); | |
1312 | ||
1313 | execv(args[0], (char* const*) args); | |
1314 | ||
1315 | log_error("Failed to reexecute: %m"); | |
1316 | } | |
1317 | ||
1318 | if (serialization) | |
1319 | fclose(serialization); | |
1320 | ||
1321 | if (fds) | |
1322 | fdset_free(fds); | |
1323 | ||
b9080b03 FF |
1324 | if (shutdown_verb) { |
1325 | const char * command_line[] = { | |
1326 | SYSTEMD_SHUTDOWN_BINARY_PATH, | |
1327 | shutdown_verb, | |
1328 | NULL | |
1329 | }; | |
1330 | ||
1331 | execv(SYSTEMD_SHUTDOWN_BINARY_PATH, (char **) command_line); | |
1332 | log_error("Failed to execute shutdown binary, freezing: %m"); | |
1333 | } | |
1334 | ||
c3b3c274 LP |
1335 | if (getpid() == 1) |
1336 | freeze(); | |
1337 | ||
60918275 LP |
1338 | return retval; |
1339 | } |