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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> |
60918275 LP |
34 | |
35 | #include "manager.h" | |
16354eff | 36 | #include "log.h" |
4ade7963 | 37 | #include "mount-setup.h" |
302e8c4c | 38 | #include "hostname-setup.h" |
af5bc85d | 39 | #include "loopback-setup.h" |
11c3a4ee | 40 | #include "kmod-setup.h" |
fa0f4d8a | 41 | #include "modprobe-setup.h" |
302e8c4c | 42 | #include "load-fragment.h" |
a16e1123 | 43 | #include "fdset.h" |
514f4ef5 | 44 | #include "special.h" |
487393e9 | 45 | #include "conf-parser.h" |
398ef8ba | 46 | #include "bus-errors.h" |
ad780f19 | 47 | #include "missing.h" |
e51bc1a2 | 48 | #include "label.h" |
302e27c8 | 49 | #include "build.h" |
60918275 | 50 | |
f170852a LP |
51 | static enum { |
52 | ACTION_RUN, | |
e965d56d | 53 | ACTION_HELP, |
e537352b | 54 | ACTION_TEST, |
4288f619 LP |
55 | ACTION_DUMP_CONFIGURATION_ITEMS, |
56 | ACTION_DONE | |
fa0f4d8a | 57 | } arg_action = ACTION_RUN; |
f170852a | 58 | |
fa0f4d8a LP |
59 | static char *arg_default_unit = NULL; |
60 | static ManagerRunningAs arg_running_as = _MANAGER_RUNNING_AS_INVALID; | |
61 | ||
62 | static bool arg_dump_core = true; | |
63 | static bool arg_crash_shell = false; | |
64 | static int arg_crash_chvt = -1; | |
65 | static bool arg_confirm_spawn = false; | |
66 | static bool arg_nomodules = false; | |
9e58ff9c | 67 | static bool arg_show_status = true; |
6e98720f | 68 | static bool arg_sysv_console = true; |
4fc935ca | 69 | |
a16e1123 | 70 | static FILE* serialization = NULL; |
80876c20 | 71 | |
93a46b0b | 72 | _noreturn_ static void freeze(void) { |
97c4f35c LP |
73 | for (;;) |
74 | pause(); | |
75 | } | |
76 | ||
6f5e3f35 LP |
77 | static void nop_handler(int sig) { |
78 | } | |
79 | ||
93a46b0b | 80 | _noreturn_ static void crash(int sig) { |
97c4f35c | 81 | |
fa0f4d8a | 82 | if (!arg_dump_core) |
582a507f | 83 | log_error("Caught <%s>, not dumping core.", signal_to_string(sig)); |
97c4f35c | 84 | else { |
6f5e3f35 | 85 | struct sigaction sa; |
97c4f35c LP |
86 | pid_t pid; |
87 | ||
6f5e3f35 LP |
88 | /* We want to wait for the core process, hence let's enable SIGCHLD */ |
89 | zero(sa); | |
90 | sa.sa_handler = nop_handler; | |
91 | sa.sa_flags = SA_NOCLDSTOP|SA_RESTART; | |
92 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
93 | ||
97c4f35c | 94 | if ((pid = fork()) < 0) |
582a507f | 95 | log_error("Caught <%s>, cannot fork for core dump: %s", signal_to_string(sig), strerror(errno)); |
97c4f35c LP |
96 | |
97 | else if (pid == 0) { | |
97c4f35c LP |
98 | struct rlimit rl; |
99 | ||
100 | /* Enable default signal handler for core dump */ | |
101 | zero(sa); | |
102 | sa.sa_handler = SIG_DFL; | |
103 | assert_se(sigaction(sig, &sa, NULL) == 0); | |
104 | ||
105 | /* Don't limit the core dump size */ | |
106 | zero(rl); | |
107 | rl.rlim_cur = RLIM_INFINITY; | |
108 | rl.rlim_max = RLIM_INFINITY; | |
109 | setrlimit(RLIMIT_CORE, &rl); | |
110 | ||
111 | /* Just to be sure... */ | |
112 | assert_se(chdir("/") == 0); | |
113 | ||
114 | /* Raise the signal again */ | |
115 | raise(sig); | |
116 | ||
117 | assert_not_reached("We shouldn't be here..."); | |
118 | _exit(1); | |
4fc935ca LP |
119 | |
120 | } else { | |
e364ad06 | 121 | int status; |
4fc935ca LP |
122 | |
123 | /* Order things nicely. */ | |
e364ad06 | 124 | if (waitpid(pid, &status, 0) < 0) |
582a507f | 125 | log_error("Caught <%s>, waitpid() failed: %s", signal_to_string(sig), strerror(errno)); |
4fc935ca | 126 | else if (!WCOREDUMP(status)) |
582a507f | 127 | log_error("Caught <%s>, core dump failed.", signal_to_string(sig)); |
4fc935ca | 128 | else |
582a507f | 129 | log_error("Caught <%s>, dumped core as pid %lu.", signal_to_string(sig), (unsigned long) pid); |
97c4f35c LP |
130 | } |
131 | } | |
132 | ||
fa0f4d8a LP |
133 | if (arg_crash_chvt) |
134 | chvt(arg_crash_chvt); | |
601f6a1e | 135 | |
fa0f4d8a | 136 | if (arg_crash_shell) { |
6f5e3f35 LP |
137 | struct sigaction sa; |
138 | pid_t pid; | |
8c43883a | 139 | |
4fc935ca LP |
140 | log_info("Executing crash shell in 10s..."); |
141 | sleep(10); | |
142 | ||
6f5e3f35 LP |
143 | /* Let the kernel reap children for us */ |
144 | zero(sa); | |
145 | sa.sa_handler = SIG_IGN; | |
146 | sa.sa_flags = SA_NOCLDSTOP|SA_NOCLDWAIT|SA_RESTART; | |
147 | assert_se(sigaction(SIGCHLD, &sa, NULL) == 0); | |
8c43883a | 148 | |
6f5e3f35 LP |
149 | if ((pid = fork()) < 0) |
150 | log_error("Failed to fork off crash shell: %s", strerror(errno)); | |
151 | else if (pid == 0) { | |
843d2643 | 152 | int fd, r; |
ea5652c2 | 153 | |
21de3988 | 154 | if ((fd = acquire_terminal("/dev/console", false, true, true)) < 0) |
ea5652c2 | 155 | log_error("Failed to acquire terminal: %s", strerror(-fd)); |
5b2a0903 | 156 | else if ((r = make_stdio(fd)) < 0) |
843d2643 | 157 | log_error("Failed to duplicate terminal fd: %s", strerror(-r)); |
ea5652c2 | 158 | |
6f5e3f35 LP |
159 | execl("/bin/sh", "/bin/sh", NULL); |
160 | ||
161 | log_error("execl() failed: %s", strerror(errno)); | |
162 | _exit(1); | |
163 | } | |
c99b188e | 164 | |
bb00e604 | 165 | log_info("Successfully spawned crash shall as pid %lu.", (unsigned long) pid); |
4fc935ca LP |
166 | } |
167 | ||
168 | log_info("Freezing execution."); | |
97c4f35c LP |
169 | freeze(); |
170 | } | |
171 | ||
172 | static void install_crash_handler(void) { | |
173 | struct sigaction sa; | |
174 | ||
175 | zero(sa); | |
176 | ||
177 | sa.sa_handler = crash; | |
178 | sa.sa_flags = SA_NODEFER; | |
179 | ||
1b91d3e8 | 180 | sigaction_many(&sa, SIGNALS_CRASH_HANDLER, -1); |
97c4f35c | 181 | } |
f170852a | 182 | |
843d2643 LP |
183 | static int make_null_stdio(void) { |
184 | int null_fd, r; | |
80876c20 | 185 | |
c8513d54 | 186 | if ((null_fd = open("/dev/null", O_RDWR|O_NOCTTY)) < 0) { |
80876c20 | 187 | log_error("Failed to open /dev/null: %m"); |
843d2643 | 188 | return -errno; |
80876c20 LP |
189 | } |
190 | ||
843d2643 LP |
191 | if ((r = make_stdio(null_fd)) < 0) |
192 | log_warning("Failed to dup2() device: %s", strerror(-r)); | |
80876c20 | 193 | |
843d2643 LP |
194 | return r; |
195 | } | |
80876c20 | 196 | |
843d2643 LP |
197 | static int console_setup(bool do_reset) { |
198 | int tty_fd, r; | |
80876c20 | 199 | |
843d2643 LP |
200 | /* If we are init, we connect stdin/stdout/stderr to /dev/null |
201 | * and make sure we don't have a controlling tty. */ | |
80876c20 | 202 | |
843d2643 LP |
203 | release_terminal(); |
204 | ||
205 | if (!do_reset) | |
206 | return 0; | |
80876c20 | 207 | |
843d2643 LP |
208 | if ((tty_fd = open_terminal("/dev/console", O_WRONLY|O_NOCTTY|O_CLOEXEC)) < 0) { |
209 | log_error("Failed to open /dev/console: %s", strerror(-tty_fd)); | |
210 | return -tty_fd; | |
211 | } | |
80876c20 | 212 | |
843d2643 LP |
213 | if ((r = reset_terminal(tty_fd)) < 0) |
214 | log_error("Failed to reset /dev/console: %s", strerror(-r)); | |
215 | ||
216 | close_nointr_nofail(tty_fd); | |
80876c20 LP |
217 | return r; |
218 | } | |
219 | ||
f170852a LP |
220 | static int set_default_unit(const char *u) { |
221 | char *c; | |
222 | ||
223 | assert(u); | |
224 | ||
225 | if (!(c = strdup(u))) | |
226 | return -ENOMEM; | |
227 | ||
fa0f4d8a LP |
228 | free(arg_default_unit); |
229 | arg_default_unit = c; | |
f170852a LP |
230 | return 0; |
231 | } | |
232 | ||
233 | static int parse_proc_cmdline_word(const char *word) { | |
234 | ||
235 | static const char * const rlmap[] = { | |
514f4ef5 LP |
236 | "single", SPECIAL_RESCUE_TARGET, |
237 | "-s", SPECIAL_RESCUE_TARGET, | |
238 | "s", SPECIAL_RESCUE_TARGET, | |
239 | "S", SPECIAL_RESCUE_TARGET, | |
240 | "1", SPECIAL_RESCUE_TARGET, | |
f170852a LP |
241 | "2", SPECIAL_RUNLEVEL2_TARGET, |
242 | "3", SPECIAL_RUNLEVEL3_TARGET, | |
243 | "4", SPECIAL_RUNLEVEL4_TARGET, | |
244 | "5", SPECIAL_RUNLEVEL5_TARGET | |
245 | }; | |
246 | ||
5192bd19 LP |
247 | assert(word); |
248 | ||
2f198e2f LP |
249 | if (startswith(word, "systemd.unit=")) |
250 | return set_default_unit(word + 13); | |
f170852a LP |
251 | |
252 | else if (startswith(word, "systemd.log_target=")) { | |
253 | ||
254 | if (log_set_target_from_string(word + 19) < 0) | |
255 | log_warning("Failed to parse log target %s. Ignoring.", word + 19); | |
256 | ||
257 | } else if (startswith(word, "systemd.log_level=")) { | |
258 | ||
259 | if (log_set_max_level_from_string(word + 18) < 0) | |
260 | log_warning("Failed to parse log level %s. Ignoring.", word + 18); | |
261 | ||
bbe63281 LP |
262 | } else if (startswith(word, "systemd.log_color=")) { |
263 | ||
264 | if (log_show_color_from_string(word + 18) < 0) | |
265 | log_warning("Failed to parse log color setting %s. Ignoring.", word + 18); | |
266 | ||
267 | } else if (startswith(word, "systemd.log_location=")) { | |
268 | ||
269 | if (log_show_location_from_string(word + 21) < 0) | |
270 | log_warning("Failed to parse log location setting %s. Ignoring.", word + 21); | |
271 | ||
4fc935ca LP |
272 | } else if (startswith(word, "systemd.dump_core=")) { |
273 | int r; | |
274 | ||
275 | if ((r = parse_boolean(word + 18)) < 0) | |
601f6a1e | 276 | log_warning("Failed to parse dump core switch %s, Ignoring.", word + 18); |
4fc935ca | 277 | else |
fa0f4d8a | 278 | arg_dump_core = r; |
4fc935ca LP |
279 | |
280 | } else if (startswith(word, "systemd.crash_shell=")) { | |
281 | int r; | |
282 | ||
283 | if ((r = parse_boolean(word + 20)) < 0) | |
601f6a1e | 284 | log_warning("Failed to parse crash shell switch %s, Ignoring.", word + 20); |
4fc935ca | 285 | else |
fa0f4d8a | 286 | arg_crash_shell = r; |
5e7ee61c LP |
287 | |
288 | } else if (startswith(word, "systemd.confirm_spawn=")) { | |
289 | int r; | |
290 | ||
291 | if ((r = parse_boolean(word + 22)) < 0) | |
292 | log_warning("Failed to parse confirm spawn switch %s, Ignoring.", word + 22); | |
293 | else | |
fa0f4d8a | 294 | arg_confirm_spawn = r; |
5e7ee61c | 295 | |
601f6a1e LP |
296 | } else if (startswith(word, "systemd.crash_chvt=")) { |
297 | int k; | |
298 | ||
299 | if (safe_atoi(word + 19, &k) < 0) | |
300 | log_warning("Failed to parse crash chvt switch %s, Ignoring.", word + 19); | |
301 | else | |
fa0f4d8a | 302 | arg_crash_chvt = k; |
601f6a1e | 303 | |
9e58ff9c LP |
304 | } else if (startswith(word, "systemd.show_status=")) { |
305 | int r; | |
306 | ||
307 | if ((r = parse_boolean(word + 20)) < 0) | |
308 | log_warning("Failed to parse show status switch %s, Ignoring.", word + 20); | |
6e98720f | 309 | else |
9e58ff9c | 310 | arg_show_status = r; |
6e98720f LP |
311 | |
312 | } else if (startswith(word, "systemd.sysv_console=")) { | |
313 | int r; | |
314 | ||
315 | if ((r = parse_boolean(word + 21)) < 0) | |
316 | log_warning("Failed to parse SysV console switch %s, Ignoring.", word + 20); | |
317 | else | |
318 | arg_sysv_console = r; | |
9e58ff9c | 319 | |
4fc935ca LP |
320 | } else if (startswith(word, "systemd.")) { |
321 | ||
322 | log_warning("Unknown kernel switch %s. Ignoring.", word); | |
323 | ||
bbe63281 LP |
324 | log_info("Supported kernel switches:\n" |
325 | "systemd.unit=UNIT Default unit to start\n" | |
bbe63281 | 326 | "systemd.dump_core=0|1 Dump core on crash\n" |
9e58ff9c | 327 | "systemd.crash_shell=0|1 Run shell on crash\n" |
bbe63281 | 328 | "systemd.crash_chvt=N Change to VT #N on crash\n" |
9e58ff9c | 329 | "systemd.confirm_spawn=0|1 Confirm every process spawn\n" |
6e98720f LP |
330 | "systemd.show_status=0|1 Show status updates on the console during bootup\n" |
331 | "systemd.sysv_console=0|1 Connect output of SysV scripts to console\n" | |
332 | "systemd.log_target=console|kmsg|syslog|syslog-org-kmsg|null\n" | |
333 | " Log target\n" | |
334 | "systemd.log_level=LEVEL Log level\n" | |
335 | "systemd.log_color=0|1 Highlight important log messages\n" | |
336 | "systemd.log_location=0|1 Include code location in log messages\n"); | |
4fc935ca | 337 | |
fa0f4d8a LP |
338 | } else if (streq(word, "nomodules")) |
339 | arg_nomodules = true; | |
0ff4cdd9 | 340 | |
5192bd19 | 341 | else if (streq(word, "quiet")) { |
6e98720f LP |
342 | arg_show_status = false; |
343 | arg_sysv_console = false; | |
9e58ff9c | 344 | } else { |
f170852a LP |
345 | unsigned i; |
346 | ||
347 | /* SysV compatibility */ | |
f170852a LP |
348 | for (i = 0; i < ELEMENTSOF(rlmap); i += 2) |
349 | if (streq(word, rlmap[i])) | |
350 | return set_default_unit(rlmap[i+1]); | |
351 | } | |
352 | ||
353 | return 0; | |
354 | } | |
355 | ||
487393e9 LP |
356 | static int config_parse_level( |
357 | const char *filename, | |
358 | unsigned line, | |
359 | const char *section, | |
360 | const char *lvalue, | |
361 | const char *rvalue, | |
362 | void *data, | |
363 | void *userdata) { | |
364 | ||
365 | assert(filename); | |
366 | assert(lvalue); | |
367 | assert(rvalue); | |
368 | ||
369 | log_set_max_level_from_string(rvalue); | |
370 | return 0; | |
371 | } | |
372 | ||
373 | static int config_parse_target( | |
374 | const char *filename, | |
375 | unsigned line, | |
376 | const char *section, | |
377 | const char *lvalue, | |
378 | const char *rvalue, | |
379 | void *data, | |
380 | void *userdata) { | |
381 | ||
382 | assert(filename); | |
383 | assert(lvalue); | |
384 | assert(rvalue); | |
385 | ||
386 | log_set_target_from_string(rvalue); | |
387 | return 0; | |
388 | } | |
389 | ||
390 | static int config_parse_color( | |
391 | const char *filename, | |
392 | unsigned line, | |
393 | const char *section, | |
394 | const char *lvalue, | |
395 | const char *rvalue, | |
396 | void *data, | |
397 | void *userdata) { | |
398 | ||
399 | assert(filename); | |
400 | assert(lvalue); | |
401 | assert(rvalue); | |
402 | ||
403 | log_show_color_from_string(rvalue); | |
404 | return 0; | |
405 | } | |
406 | ||
407 | static int config_parse_location( | |
408 | const char *filename, | |
409 | unsigned line, | |
410 | const char *section, | |
411 | const char *lvalue, | |
412 | const char *rvalue, | |
413 | void *data, | |
414 | void *userdata) { | |
415 | ||
416 | assert(filename); | |
417 | assert(lvalue); | |
418 | assert(rvalue); | |
419 | ||
420 | log_show_location_from_string(rvalue); | |
421 | return 0; | |
422 | } | |
423 | ||
424 | static int config_parse_cpu_affinity( | |
425 | const char *filename, | |
426 | unsigned line, | |
427 | const char *section, | |
428 | const char *lvalue, | |
429 | const char *rvalue, | |
430 | void *data, | |
431 | void *userdata) { | |
432 | ||
433 | char *w; | |
434 | size_t l; | |
435 | char *state; | |
436 | cpu_set_t *c = NULL; | |
437 | unsigned ncpus = 0; | |
438 | ||
439 | assert(filename); | |
440 | assert(lvalue); | |
441 | assert(rvalue); | |
442 | ||
f60f22df | 443 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { |
487393e9 LP |
444 | char *t; |
445 | int r; | |
446 | unsigned cpu; | |
447 | ||
448 | if (!(t = strndup(w, l))) | |
449 | return -ENOMEM; | |
450 | ||
451 | r = safe_atou(t, &cpu); | |
452 | free(t); | |
453 | ||
454 | if (!c) | |
455 | if (!(c = cpu_set_malloc(&ncpus))) | |
456 | return -ENOMEM; | |
457 | ||
458 | if (r < 0 || cpu >= ncpus) { | |
459 | log_error("[%s:%u] Failed to parse CPU affinity: %s", filename, line, rvalue); | |
460 | CPU_FREE(c); | |
461 | return -EBADMSG; | |
462 | } | |
463 | ||
464 | CPU_SET_S(cpu, CPU_ALLOC_SIZE(ncpus), c); | |
465 | } | |
466 | ||
467 | if (c) { | |
468 | if (sched_setaffinity(0, CPU_ALLOC_SIZE(ncpus), c) < 0) | |
469 | log_warning("Failed to set CPU affinity: %m"); | |
470 | ||
471 | CPU_FREE(c); | |
472 | } | |
473 | ||
474 | return 0; | |
475 | } | |
476 | ||
477 | static int parse_config_file(void) { | |
478 | ||
479 | const ConfigItem items[] = { | |
480 | { "LogLevel", config_parse_level, NULL, "Manager" }, | |
481 | { "LogTarget", config_parse_target, NULL, "Manager" }, | |
482 | { "LogColor", config_parse_color, NULL, "Manager" }, | |
483 | { "LogLocation", config_parse_location, NULL, "Manager" }, | |
484 | { "DumpCore", config_parse_bool, &arg_dump_core, "Manager" }, | |
485 | { "CrashShell", config_parse_bool, &arg_crash_shell, "Manager" }, | |
486 | { "ShowStatus", config_parse_bool, &arg_show_status, "Manager" }, | |
6e98720f | 487 | { "SysVConsole", config_parse_bool, &arg_sysv_console,"Manager" }, |
487393e9 LP |
488 | { "CrashChVT", config_parse_int, &arg_crash_chvt, "Manager" }, |
489 | { "CPUAffinity", config_parse_cpu_affinity, NULL, "Manager" }, | |
490 | { NULL, NULL, NULL, NULL } | |
491 | }; | |
492 | ||
493 | static const char * const sections[] = { | |
494 | "Manager", | |
495 | NULL | |
496 | }; | |
497 | ||
498 | FILE *f; | |
499 | const char *fn; | |
500 | int r; | |
501 | ||
502 | fn = arg_running_as == MANAGER_SYSTEM ? SYSTEM_CONFIG_FILE : SESSION_CONFIG_FILE; | |
503 | ||
504 | if (!(f = fopen(fn, "re"))) { | |
505 | if (errno == ENOENT) | |
506 | return 0; | |
507 | ||
508 | log_warning("Failed to open configuration file '%s': %m", fn); | |
509 | return 0; | |
510 | } | |
511 | ||
512 | if ((r = config_parse(fn, f, sections, items, false, NULL)) < 0) | |
513 | log_warning("Failed to parse configuration file: %s", strerror(-r)); | |
514 | ||
515 | fclose(f); | |
516 | ||
517 | return 0; | |
518 | } | |
519 | ||
f170852a LP |
520 | static int parse_proc_cmdline(void) { |
521 | char *line; | |
522 | int r; | |
523 | char *w; | |
524 | size_t l; | |
525 | char *state; | |
526 | ||
527 | if ((r = read_one_line_file("/proc/cmdline", &line)) < 0) { | |
e364ad06 | 528 | log_warning("Failed to read /proc/cmdline, ignoring: %s", strerror(-r)); |
f170852a LP |
529 | return 0; |
530 | } | |
531 | ||
532 | FOREACH_WORD_QUOTED(w, l, line, state) { | |
533 | char *word; | |
534 | ||
535 | if (!(word = strndup(w, l))) { | |
536 | r = -ENOMEM; | |
537 | goto finish; | |
538 | } | |
539 | ||
540 | r = parse_proc_cmdline_word(word); | |
541 | free(word); | |
542 | ||
543 | if (r < 0) | |
544 | goto finish; | |
545 | } | |
546 | ||
547 | r = 0; | |
548 | ||
549 | finish: | |
550 | free(line); | |
551 | return r; | |
552 | } | |
553 | ||
554 | static int parse_argv(int argc, char *argv[]) { | |
555 | ||
556 | enum { | |
557 | ARG_LOG_LEVEL = 0x100, | |
558 | ARG_LOG_TARGET, | |
bbe63281 LP |
559 | ARG_LOG_COLOR, |
560 | ARG_LOG_LOCATION, | |
2f198e2f | 561 | ARG_UNIT, |
edb9aaa8 LP |
562 | ARG_SYSTEM, |
563 | ARG_SESSION, | |
e537352b | 564 | ARG_TEST, |
80876c20 | 565 | ARG_DUMP_CONFIGURATION_ITEMS, |
9e58ff9c LP |
566 | ARG_DUMP_CORE, |
567 | ARG_CRASH_SHELL, | |
a16e1123 | 568 | ARG_CONFIRM_SPAWN, |
9e58ff9c | 569 | ARG_SHOW_STATUS, |
6e98720f | 570 | ARG_SYSV_CONSOLE, |
4288f619 LP |
571 | ARG_DESERIALIZE, |
572 | ARG_INTROSPECT | |
f170852a LP |
573 | }; |
574 | ||
575 | static const struct option options[] = { | |
a16e1123 LP |
576 | { "log-level", required_argument, NULL, ARG_LOG_LEVEL }, |
577 | { "log-target", required_argument, NULL, ARG_LOG_TARGET }, | |
bbe63281 LP |
578 | { "log-color", optional_argument, NULL, ARG_LOG_COLOR }, |
579 | { "log-location", optional_argument, NULL, ARG_LOG_LOCATION }, | |
2f198e2f | 580 | { "unit", required_argument, NULL, ARG_UNIT }, |
edb9aaa8 LP |
581 | { "system", no_argument, NULL, ARG_SYSTEM }, |
582 | { "session", no_argument, NULL, ARG_SESSION }, | |
a16e1123 LP |
583 | { "test", no_argument, NULL, ARG_TEST }, |
584 | { "help", no_argument, NULL, 'h' }, | |
585 | { "dump-configuration-items", no_argument, NULL, ARG_DUMP_CONFIGURATION_ITEMS }, | |
9e58ff9c LP |
586 | { "dump-core", no_argument, NULL, ARG_DUMP_CORE }, |
587 | { "crash-shell", no_argument, NULL, ARG_CRASH_SHELL }, | |
a16e1123 | 588 | { "confirm-spawn", no_argument, NULL, ARG_CONFIRM_SPAWN }, |
6e98720f LP |
589 | { "show-status", optional_argument, NULL, ARG_SHOW_STATUS }, |
590 | { "sysv-console", optional_argument, NULL, ARG_SYSV_CONSOLE }, | |
a16e1123 | 591 | { "deserialize", required_argument, NULL, ARG_DESERIALIZE }, |
4288f619 | 592 | { "introspect", optional_argument, NULL, ARG_INTROSPECT }, |
a16e1123 | 593 | { NULL, 0, NULL, 0 } |
f170852a LP |
594 | }; |
595 | ||
596 | int c, r; | |
597 | ||
598 | assert(argc >= 1); | |
599 | assert(argv); | |
600 | ||
1d2e23ab | 601 | while ((c = getopt_long(argc, argv, "hD", options, NULL)) >= 0) |
f170852a LP |
602 | |
603 | switch (c) { | |
604 | ||
605 | case ARG_LOG_LEVEL: | |
606 | if ((r = log_set_max_level_from_string(optarg)) < 0) { | |
607 | log_error("Failed to parse log level %s.", optarg); | |
608 | return r; | |
609 | } | |
610 | ||
611 | break; | |
612 | ||
613 | case ARG_LOG_TARGET: | |
614 | ||
615 | if ((r = log_set_target_from_string(optarg)) < 0) { | |
616 | log_error("Failed to parse log target %s.", optarg); | |
617 | return r; | |
618 | } | |
619 | ||
620 | break; | |
621 | ||
bbe63281 LP |
622 | case ARG_LOG_COLOR: |
623 | ||
d0b170c8 LP |
624 | if (optarg) { |
625 | if ((r = log_show_color_from_string(optarg)) < 0) { | |
626 | log_error("Failed to parse log color setting %s.", optarg); | |
627 | return r; | |
628 | } | |
629 | } else | |
630 | log_show_color(true); | |
bbe63281 LP |
631 | |
632 | break; | |
633 | ||
634 | case ARG_LOG_LOCATION: | |
635 | ||
d0b170c8 LP |
636 | if (optarg) { |
637 | if ((r = log_show_location_from_string(optarg)) < 0) { | |
638 | log_error("Failed to parse log location setting %s.", optarg); | |
639 | return r; | |
640 | } | |
641 | } else | |
642 | log_show_location(true); | |
bbe63281 LP |
643 | |
644 | break; | |
645 | ||
2f198e2f | 646 | case ARG_UNIT: |
f170852a LP |
647 | |
648 | if ((r = set_default_unit(optarg)) < 0) { | |
649 | log_error("Failed to set default unit %s: %s", optarg, strerror(-r)); | |
650 | return r; | |
651 | } | |
652 | ||
653 | break; | |
654 | ||
edb9aaa8 LP |
655 | case ARG_SYSTEM: |
656 | arg_running_as = MANAGER_SYSTEM; | |
657 | break; | |
a5dab5ce | 658 | |
edb9aaa8 LP |
659 | case ARG_SESSION: |
660 | arg_running_as = MANAGER_SESSION; | |
a5dab5ce | 661 | break; |
a5dab5ce | 662 | |
e965d56d | 663 | case ARG_TEST: |
fa0f4d8a | 664 | arg_action = ACTION_TEST; |
e965d56d LP |
665 | break; |
666 | ||
e537352b | 667 | case ARG_DUMP_CONFIGURATION_ITEMS: |
fa0f4d8a | 668 | arg_action = ACTION_DUMP_CONFIGURATION_ITEMS; |
e537352b LP |
669 | break; |
670 | ||
9e58ff9c LP |
671 | case ARG_DUMP_CORE: |
672 | arg_dump_core = true; | |
673 | break; | |
674 | ||
675 | case ARG_CRASH_SHELL: | |
676 | arg_crash_shell = true; | |
677 | break; | |
678 | ||
80876c20 | 679 | case ARG_CONFIRM_SPAWN: |
fa0f4d8a | 680 | arg_confirm_spawn = true; |
80876c20 LP |
681 | break; |
682 | ||
9e58ff9c | 683 | case ARG_SHOW_STATUS: |
6e98720f LP |
684 | |
685 | if (optarg) { | |
686 | if ((r = parse_boolean(optarg)) < 0) { | |
687 | log_error("Failed to show status boolean %s.", optarg); | |
688 | return r; | |
689 | } | |
690 | arg_show_status = r; | |
691 | } else | |
692 | arg_show_status = true; | |
693 | break; | |
694 | ||
695 | case ARG_SYSV_CONSOLE: | |
696 | ||
697 | if (optarg) { | |
698 | if ((r = parse_boolean(optarg)) < 0) { | |
699 | log_error("Failed to SysV console boolean %s.", optarg); | |
700 | return r; | |
701 | } | |
702 | arg_sysv_console = r; | |
703 | } else | |
704 | arg_sysv_console = true; | |
9e58ff9c LP |
705 | break; |
706 | ||
a16e1123 LP |
707 | case ARG_DESERIALIZE: { |
708 | int fd; | |
709 | FILE *f; | |
710 | ||
711 | if ((r = safe_atoi(optarg, &fd)) < 0 || fd < 0) { | |
712 | log_error("Failed to parse deserialize option %s.", optarg); | |
713 | return r; | |
714 | } | |
715 | ||
716 | if (!(f = fdopen(fd, "r"))) { | |
717 | log_error("Failed to open serialization fd: %m"); | |
718 | return r; | |
719 | } | |
720 | ||
721 | if (serialization) | |
722 | fclose(serialization); | |
723 | ||
724 | serialization = f; | |
725 | ||
726 | break; | |
727 | } | |
728 | ||
4288f619 LP |
729 | case ARG_INTROSPECT: { |
730 | const char * const * i = NULL; | |
731 | ||
732 | for (i = bus_interface_table; *i; i += 2) | |
733 | if (!optarg || streq(i[0], optarg)) { | |
734 | fputs(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE | |
735 | "<node>\n", stdout); | |
736 | fputs(i[1], stdout); | |
737 | fputs("</node>\n", stdout); | |
738 | ||
739 | if (optarg) | |
740 | break; | |
741 | } | |
742 | ||
743 | if (!i[0] && optarg) | |
744 | log_error("Unknown interface %s.", optarg); | |
745 | ||
fa0f4d8a | 746 | arg_action = ACTION_DONE; |
4288f619 LP |
747 | break; |
748 | } | |
749 | ||
f170852a | 750 | case 'h': |
fa0f4d8a | 751 | arg_action = ACTION_HELP; |
f170852a LP |
752 | break; |
753 | ||
1d2e23ab LP |
754 | case 'D': |
755 | log_set_max_level(LOG_DEBUG); | |
756 | break; | |
757 | ||
f170852a LP |
758 | case '?': |
759 | return -EINVAL; | |
760 | ||
761 | default: | |
762 | log_error("Unknown option code %c", c); | |
763 | return -EINVAL; | |
764 | } | |
765 | ||
51f0e189 LP |
766 | /* PID 1 will get the kernel arguments as parameters, which we |
767 | * ignore and unconditionally read from | |
768 | * /proc/cmdline. However, we need to ignore those arguments | |
769 | * here. */ | |
fa0f4d8a | 770 | if (arg_running_as != MANAGER_SYSTEM && optind < argc) { |
51f0e189 LP |
771 | log_error("Excess arguments."); |
772 | return -EINVAL; | |
773 | } | |
774 | ||
f170852a LP |
775 | return 0; |
776 | } | |
777 | ||
778 | static int help(void) { | |
779 | ||
2e33c433 | 780 | printf("%s [OPTIONS...]\n\n" |
bbe63281 | 781 | "Starts up and maintains the system or a session.\n\n" |
e537352b | 782 | " -h --help Show this help\n" |
e537352b | 783 | " --test Determine startup sequence, dump it and exit\n" |
80876c20 | 784 | " --dump-configuration-items Dump understood unit configuration items\n" |
bbe63281 | 785 | " --introspect[=INTERFACE] Extract D-Bus interface data\n" |
9e58ff9c | 786 | " --unit=UNIT Set default unit\n" |
edb9aaa8 LP |
787 | " --system Run a system instance, even if PID != 1\n" |
788 | " --session Run a session instance\n" | |
9e58ff9c LP |
789 | " --dump-core Dump core on crash\n" |
790 | " --crash-shell Run shell on crash\n" | |
791 | " --confirm-spawn Ask for confirmation when spawning processes\n" | |
6e98720f LP |
792 | " --show-status[=0|1] Show status updates on the console during bootup\n" |
793 | " --sysv-console[=0|1] Connect output of SysV scripts to console\n" | |
bbe63281 | 794 | " --log-target=TARGET Set log target (console, syslog, kmsg, syslog-or-kmsg, null)\n" |
9e58ff9c | 795 | " --log-level=LEVEL Set log level (debug, info, notice, warning, err, crit, alert, emerg)\n" |
2218198b | 796 | " --log-color[=0|1] Highlight important log messages\n" |
bbe63281 | 797 | " --log-location[=0|1] Include code location in log messages\n", |
5b6319dc | 798 | program_invocation_short_name); |
f170852a LP |
799 | |
800 | return 0; | |
801 | } | |
802 | ||
a16e1123 LP |
803 | static int prepare_reexecute(Manager *m, FILE **_f, FDSet **_fds) { |
804 | FILE *f = NULL; | |
805 | FDSet *fds = NULL; | |
806 | int r; | |
807 | ||
808 | assert(m); | |
809 | assert(_f); | |
810 | assert(_fds); | |
811 | ||
d8d5ab98 | 812 | if ((r = manager_open_serialization(m, &f)) < 0) { |
a16e1123 LP |
813 | log_error("Failed to create serialization faile: %s", strerror(-r)); |
814 | goto fail; | |
815 | } | |
816 | ||
817 | if (!(fds = fdset_new())) { | |
818 | r = -ENOMEM; | |
819 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
820 | goto fail; | |
821 | } | |
822 | ||
823 | if ((r = manager_serialize(m, f, fds)) < 0) { | |
824 | log_error("Failed to serialize state: %s", strerror(-r)); | |
825 | goto fail; | |
826 | } | |
827 | ||
828 | if (fseeko(f, 0, SEEK_SET) < 0) { | |
829 | log_error("Failed to rewind serialization fd: %m"); | |
830 | goto fail; | |
831 | } | |
832 | ||
833 | if ((r = fd_cloexec(fileno(f), false)) < 0) { | |
834 | log_error("Failed to disable O_CLOEXEC for serialization: %s", strerror(-r)); | |
835 | goto fail; | |
836 | } | |
837 | ||
838 | if ((r = fdset_cloexec(fds, false)) < 0) { | |
839 | log_error("Failed to disable O_CLOEXEC for serialization fds: %s", strerror(-r)); | |
840 | goto fail; | |
841 | } | |
842 | ||
843 | *_f = f; | |
844 | *_fds = fds; | |
845 | ||
846 | return 0; | |
847 | ||
848 | fail: | |
849 | fdset_free(fds); | |
850 | ||
851 | if (f) | |
852 | fclose(f); | |
853 | ||
854 | return r; | |
855 | } | |
856 | ||
60918275 LP |
857 | int main(int argc, char *argv[]) { |
858 | Manager *m = NULL; | |
87f0e418 | 859 | Unit *target = NULL; |
60918275 | 860 | int r, retval = 1; |
a16e1123 LP |
861 | FDSet *fds = NULL; |
862 | bool reexecute = false; | |
27b14a22 | 863 | |
2cb1a60d LP |
864 | if (getpid() != 1 && strstr(program_invocation_short_name, "init")) { |
865 | /* This is compatbility support for SysV, where | |
866 | * calling init as a user is identical to telinit. */ | |
867 | ||
868 | errno = -ENOENT; | |
869 | execv(SYSTEMCTL_BINARY_PATH, argv); | |
870 | log_error("Failed to exec " SYSTEMCTL_BINARY_PATH ": %m"); | |
871 | return 1; | |
872 | } | |
873 | ||
2cc59dbf | 874 | log_show_color(isatty(STDERR_FILENO) > 0); |
bbe63281 | 875 | log_show_location(false); |
7c706717 | 876 | log_set_max_level(LOG_INFO); |
bbe63281 | 877 | |
843d2643 | 878 | if (getpid() == 1) { |
fa0f4d8a | 879 | arg_running_as = MANAGER_SYSTEM; |
843d2643 | 880 | log_set_target(LOG_TARGET_SYSLOG_OR_KMSG); |
0ff4cdd9 LP |
881 | |
882 | if (label_init() < 0) | |
883 | goto finish; | |
bbe63281 | 884 | } else { |
fa0f4d8a | 885 | arg_running_as = MANAGER_SESSION; |
bbe63281 LP |
886 | log_set_target(LOG_TARGET_CONSOLE); |
887 | } | |
a5dab5ce | 888 | |
f170852a LP |
889 | if (set_default_unit(SPECIAL_DEFAULT_TARGET) < 0) |
890 | goto finish; | |
60918275 | 891 | |
f170852a LP |
892 | /* Mount /proc, /sys and friends, so that /proc/cmdline and |
893 | * /proc/$PID/fd is available. */ | |
ca326f6f | 894 | if (geteuid() == 0 && !getenv("SYSTEMD_SKIP_API_MOUNTS")) |
8efe3c01 LP |
895 | if (mount_setup() < 0) |
896 | goto finish; | |
4ade7963 LP |
897 | |
898 | /* Reset all signal handlers. */ | |
899 | assert_se(reset_all_signal_handlers() == 0); | |
900 | ||
078e4539 | 901 | /* If we are init, we can block sigkill. Yay. */ |
9a34ec5f | 902 | ignore_signals(SIGNALS_IGNORE, -1); |
078e4539 | 903 | |
487393e9 LP |
904 | if (parse_config_file() < 0) |
905 | goto finish; | |
906 | ||
fa0f4d8a | 907 | if (arg_running_as == MANAGER_SYSTEM) |
a5dab5ce LP |
908 | if (parse_proc_cmdline() < 0) |
909 | goto finish; | |
f170852a LP |
910 | |
911 | log_parse_environment(); | |
912 | ||
913 | if (parse_argv(argc, argv) < 0) | |
914 | goto finish; | |
915 | ||
fa0f4d8a | 916 | if (arg_action == ACTION_HELP) { |
f170852a LP |
917 | retval = help(); |
918 | goto finish; | |
fa0f4d8a | 919 | } else if (arg_action == ACTION_DUMP_CONFIGURATION_ITEMS) { |
e537352b LP |
920 | unit_dump_config_items(stdout); |
921 | retval = 0; | |
922 | goto finish; | |
fa0f4d8a | 923 | } else if (arg_action == ACTION_DONE) { |
4288f619 LP |
924 | retval = 0; |
925 | goto finish; | |
f170852a LP |
926 | } |
927 | ||
fa0f4d8a | 928 | assert_se(arg_action == ACTION_RUN || arg_action == ACTION_TEST); |
f170852a | 929 | |
a16e1123 LP |
930 | /* Remember open file descriptors for later deserialization */ |
931 | if (serialization) { | |
932 | if ((r = fdset_new_fill(&fds)) < 0) { | |
933 | log_error("Failed to allocate fd set: %s", strerror(-r)); | |
934 | goto finish; | |
935 | } | |
936 | ||
937 | assert_se(fdset_remove(fds, fileno(serialization)) >= 0); | |
938 | } else | |
939 | close_all_fds(NULL, 0); | |
940 | ||
09082a94 | 941 | /* Set up PATH unless it is already set */ |
e537352b LP |
942 | setenv("PATH", |
943 | "/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin", | |
fa0f4d8a | 944 | arg_running_as == MANAGER_SYSTEM); |
09082a94 | 945 | |
f170852a LP |
946 | /* Move out of the way, so that we won't block unmounts */ |
947 | assert_se(chdir("/") == 0); | |
948 | ||
fa0f4d8a | 949 | if (arg_running_as == MANAGER_SYSTEM) { |
80876c20 LP |
950 | /* Become a session leader if we aren't one yet. */ |
951 | setsid(); | |
4ade7963 | 952 | |
80876c20 LP |
953 | /* Disable the umask logic */ |
954 | umask(0); | |
955 | } | |
956 | ||
843d2643 LP |
957 | /* Make sure D-Bus doesn't fiddle with the SIGPIPE handlers */ |
958 | dbus_connection_set_change_sigpipe(FALSE); | |
959 | ||
2146621b LP |
960 | /* Reset the console, but only if this is really init and we |
961 | * are freshly booted */ | |
fa0f4d8a | 962 | if (arg_running_as == MANAGER_SYSTEM && arg_action == ACTION_RUN) { |
2146621b | 963 | console_setup(getpid() == 1 && !serialization); |
843d2643 LP |
964 | make_null_stdio(); |
965 | } | |
4ade7963 | 966 | |
18149b9f | 967 | /* Open the logging devices, if possible and necessary */ |
843d2643 | 968 | log_open(); |
4ade7963 | 969 | |
5373d602 LP |
970 | /* Make sure we leave a core dump without panicing the |
971 | * kernel. */ | |
4fc935ca LP |
972 | if (getpid() == 1) |
973 | install_crash_handler(); | |
97c4f35c | 974 | |
302e27c8 LP |
975 | log_full(arg_running_as == MANAGER_SYSTEM ? LOG_INFO : LOG_DEBUG, |
976 | PACKAGE_STRING " running in %s mode. (" SYSTEMD_FEATURES ")", manager_running_as_to_string(arg_running_as)); | |
a5dab5ce | 977 | |
ad780f19 LP |
978 | if (arg_running_as == MANAGER_SYSTEM) { |
979 | ||
980 | /* Disable nscd, to avoid deadlocks when systemd uses | |
981 | * NSS and the nscd socket is maintained by us. */ | |
afea26ad | 982 | nss_disable_nscd(); |
ad780f19 LP |
983 | |
984 | if (!serialization) { | |
985 | if (arg_show_status) | |
986 | status_welcome(); | |
987 | modprobe_setup(arg_nomodules); | |
988 | kmod_setup(); | |
989 | hostname_setup(); | |
990 | loopback_setup(); | |
991 | } | |
af5bc85d | 992 | } |
302e8c4c | 993 | |
9e58ff9c | 994 | if ((r = manager_new(arg_running_as, &m)) < 0) { |
8e274523 | 995 | log_error("Failed to allocate manager object: %s", strerror(-r)); |
60918275 LP |
996 | goto finish; |
997 | } | |
998 | ||
9e58ff9c LP |
999 | m->confirm_spawn = arg_confirm_spawn; |
1000 | m->show_status = arg_show_status; | |
6e98720f | 1001 | m->sysv_console = arg_sysv_console; |
9e58ff9c | 1002 | |
a16e1123 | 1003 | if ((r = manager_startup(m, serialization, fds)) < 0) |
6e2ef85b | 1004 | log_error("Failed to fully start up daemon: %s", strerror(-r)); |
a16e1123 LP |
1005 | |
1006 | if (fds) { | |
1007 | /* This will close all file descriptors that were opened, but | |
1008 | * not claimed by any unit. */ | |
1009 | ||
1010 | fdset_free(fds); | |
1011 | fds = NULL; | |
f50e0a01 LP |
1012 | } |
1013 | ||
a16e1123 LP |
1014 | if (serialization) { |
1015 | fclose(serialization); | |
1016 | serialization = NULL; | |
1017 | } else { | |
398ef8ba LP |
1018 | DBusError error; |
1019 | ||
1020 | dbus_error_init(&error); | |
1021 | ||
fa0f4d8a | 1022 | log_debug("Activating default unit: %s", arg_default_unit); |
a16e1123 | 1023 | |
398ef8ba LP |
1024 | if ((r = manager_load_unit(m, arg_default_unit, NULL, &error, &target)) < 0) { |
1025 | log_error("Failed to load default target: %s", bus_error(&error, r)); | |
1026 | dbus_error_free(&error); | |
27b14a22 | 1027 | |
a16e1123 | 1028 | log_info("Trying to load rescue target..."); |
398ef8ba LP |
1029 | if ((r = manager_load_unit(m, SPECIAL_RESCUE_TARGET, NULL, &error, &target)) < 0) { |
1030 | log_error("Failed to load rescue target: %s", bus_error(&error, r)); | |
1031 | dbus_error_free(&error); | |
a16e1123 LP |
1032 | goto finish; |
1033 | } | |
1034 | } | |
37d88da7 | 1035 | |
fa0f4d8a | 1036 | if (arg_action == ACTION_TEST) { |
40d50879 | 1037 | printf("-> By units:\n"); |
a16e1123 LP |
1038 | manager_dump_units(m, stdout, "\t"); |
1039 | } | |
1040 | ||
0ff4cdd9 | 1041 | if ((r = manager_add_job(m, JOB_START, target, JOB_REPLACE, false, &error, NULL)) < 0) { |
398ef8ba LP |
1042 | log_error("Failed to start default target: %s", bus_error(&error, r)); |
1043 | dbus_error_free(&error); | |
37d88da7 LP |
1044 | goto finish; |
1045 | } | |
60918275 | 1046 | |
fa0f4d8a | 1047 | if (arg_action == ACTION_TEST) { |
40d50879 | 1048 | printf("-> By jobs:\n"); |
a16e1123 LP |
1049 | manager_dump_jobs(m, stdout, "\t"); |
1050 | retval = 0; | |
1051 | goto finish; | |
1052 | } | |
e965d56d | 1053 | } |
d46de8a1 | 1054 | |
a16e1123 LP |
1055 | for (;;) { |
1056 | if ((r = manager_loop(m)) < 0) { | |
1057 | log_error("Failed to run mainloop: %s", strerror(-r)); | |
1058 | goto finish; | |
1059 | } | |
11dd41ce | 1060 | |
a16e1123 | 1061 | switch (m->exit_code) { |
e965d56d | 1062 | |
a16e1123 LP |
1063 | case MANAGER_EXIT: |
1064 | retval = 0; | |
1065 | log_debug("Exit."); | |
1066 | goto finish; | |
e965d56d | 1067 | |
a16e1123 | 1068 | case MANAGER_RELOAD: |
e015090f | 1069 | log_info("Reloading."); |
a16e1123 LP |
1070 | if ((r = manager_reload(m)) < 0) |
1071 | log_error("Failed to reload: %s", strerror(-r)); | |
1072 | break; | |
cea8e32e | 1073 | |
a16e1123 | 1074 | case MANAGER_REEXECUTE: |
a16e1123 LP |
1075 | if (prepare_reexecute(m, &serialization, &fds) < 0) |
1076 | goto finish; | |
60918275 | 1077 | |
a16e1123 | 1078 | reexecute = true; |
e015090f | 1079 | log_notice("Reexecuting."); |
a16e1123 LP |
1080 | goto finish; |
1081 | ||
1082 | default: | |
1083 | assert_not_reached("Unknown exit code."); | |
1084 | } | |
1085 | } | |
f170852a | 1086 | |
60918275 LP |
1087 | finish: |
1088 | if (m) | |
1089 | manager_free(m); | |
1090 | ||
fa0f4d8a | 1091 | free(arg_default_unit); |
b9cd2ec1 | 1092 | |
ea430986 LP |
1093 | dbus_shutdown(); |
1094 | ||
a16e1123 | 1095 | if (reexecute) { |
6e98720f | 1096 | const char *args[15]; |
a16e1123 LP |
1097 | unsigned i = 0; |
1098 | char sfd[16]; | |
1099 | ||
1100 | assert(serialization); | |
1101 | assert(fds); | |
1102 | ||
1103 | args[i++] = SYSTEMD_BINARY_PATH; | |
1104 | ||
1105 | args[i++] = "--log-level"; | |
1106 | args[i++] = log_level_to_string(log_get_max_level()); | |
1107 | ||
1108 | args[i++] = "--log-target"; | |
1109 | args[i++] = log_target_to_string(log_get_target()); | |
1110 | ||
edb9aaa8 LP |
1111 | if (arg_running_as == MANAGER_SYSTEM) |
1112 | args[i++] = "--system"; | |
1113 | else | |
1114 | args[i++] = "--session"; | |
1115 | ||
1116 | if (arg_dump_core) | |
1117 | args[i++] = "--dump-core"; | |
1118 | ||
1119 | if (arg_crash_shell) | |
1120 | args[i++] = "--crash-shell"; | |
1121 | ||
1122 | if (arg_confirm_spawn) | |
1123 | args[i++] = "--confirm-spawn"; | |
1124 | ||
1125 | if (arg_show_status) | |
6e98720f LP |
1126 | args[i++] = "--show-status=1"; |
1127 | else | |
1128 | args[i++] = "--show-status=0"; | |
1129 | ||
1130 | if (arg_sysv_console) | |
1131 | args[i++] = "--sysv-console=1"; | |
1132 | else | |
1133 | args[i++] = "--sysv-console=0"; | |
a16e1123 LP |
1134 | |
1135 | snprintf(sfd, sizeof(sfd), "%i", fileno(serialization)); | |
1136 | char_array_0(sfd); | |
1137 | ||
1138 | args[i++] = "--deserialize"; | |
1139 | args[i++] = sfd; | |
1140 | ||
a16e1123 LP |
1141 | args[i++] = NULL; |
1142 | ||
1143 | assert(i <= ELEMENTSOF(args)); | |
1144 | ||
1145 | execv(args[0], (char* const*) args); | |
1146 | ||
1147 | log_error("Failed to reexecute: %m"); | |
1148 | } | |
1149 | ||
1150 | if (serialization) | |
1151 | fclose(serialization); | |
1152 | ||
1153 | if (fds) | |
1154 | fdset_free(fds); | |
1155 | ||
c3b3c274 LP |
1156 | if (getpid() == 1) |
1157 | freeze(); | |
1158 | ||
56cf987f DW |
1159 | label_finish(); |
1160 | ||
60918275 LP |
1161 | return retval; |
1162 | } |