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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ | |
2 | ||
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 Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 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 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <sys/reboot.h> | |
23 | #include <stdio.h> | |
24 | #include <getopt.h> | |
25 | #include <stdbool.h> | |
26 | #include <string.h> | |
27 | #include <errno.h> | |
28 | #include <sys/ioctl.h> | |
29 | #include <termios.h> | |
30 | #include <unistd.h> | |
31 | #include <fcntl.h> | |
32 | #include <sys/socket.h> | |
33 | #include <sys/stat.h> | |
34 | #include <stddef.h> | |
35 | #include <sys/prctl.h> | |
36 | #include <dbus/dbus.h> | |
37 | ||
38 | #include <systemd/sd-daemon.h> | |
39 | #include <systemd/sd-shutdown.h> | |
40 | ||
41 | #include "log.h" | |
42 | #include "util.h" | |
43 | #include "macro.h" | |
44 | #include "set.h" | |
45 | #include "utmp-wtmp.h" | |
46 | #include "special.h" | |
47 | #include "initreq.h" | |
48 | #include "path-util.h" | |
49 | #include "strv.h" | |
50 | #include "dbus-common.h" | |
51 | #include "cgroup-show.h" | |
52 | #include "cgroup-util.h" | |
53 | #include "list.h" | |
54 | #include "path-lookup.h" | |
55 | #include "conf-parser.h" | |
56 | #include "exit-status.h" | |
57 | #include "bus-errors.h" | |
58 | #include "build.h" | |
59 | #include "unit-name.h" | |
60 | #include "pager.h" | |
61 | #include "spawn-ask-password-agent.h" | |
62 | #include "spawn-polkit-agent.h" | |
63 | #include "install.h" | |
64 | #include "logs-show.h" | |
65 | #include "path-util.h" | |
66 | ||
67 | static const char *arg_type = NULL; | |
68 | static char **arg_property = NULL; | |
69 | static bool arg_all = false; | |
70 | static const char *arg_job_mode = "replace"; | |
71 | static UnitFileScope arg_scope = UNIT_FILE_SYSTEM; | |
72 | static bool arg_no_block = false; | |
73 | static bool arg_no_legend = false; | |
74 | static bool arg_no_pager = false; | |
75 | static bool arg_no_wtmp = false; | |
76 | static bool arg_no_sync = false; | |
77 | static bool arg_no_wall = false; | |
78 | static bool arg_no_reload = false; | |
79 | static bool arg_dry = false; | |
80 | static bool arg_quiet = false; | |
81 | static bool arg_full = false; | |
82 | static int arg_force = 0; | |
83 | static bool arg_ask_password = true; | |
84 | static bool arg_failed = false; | |
85 | static bool arg_runtime = false; | |
86 | static char **arg_wall = NULL; | |
87 | static const char *arg_kill_who = NULL; | |
88 | static const char *arg_kill_mode = NULL; | |
89 | static int arg_signal = SIGTERM; | |
90 | static const char *arg_root = NULL; | |
91 | static usec_t arg_when = 0; | |
92 | static enum action { | |
93 | ACTION_INVALID, | |
94 | ACTION_SYSTEMCTL, | |
95 | ACTION_HALT, | |
96 | ACTION_POWEROFF, | |
97 | ACTION_REBOOT, | |
98 | ACTION_KEXEC, | |
99 | ACTION_EXIT, | |
100 | ACTION_SUSPEND, | |
101 | ACTION_HIBERNATE, | |
102 | ACTION_RUNLEVEL2, | |
103 | ACTION_RUNLEVEL3, | |
104 | ACTION_RUNLEVEL4, | |
105 | ACTION_RUNLEVEL5, | |
106 | ACTION_RESCUE, | |
107 | ACTION_EMERGENCY, | |
108 | ACTION_DEFAULT, | |
109 | ACTION_RELOAD, | |
110 | ACTION_REEXEC, | |
111 | ACTION_RUNLEVEL, | |
112 | ACTION_CANCEL_SHUTDOWN, | |
113 | _ACTION_MAX | |
114 | } arg_action = ACTION_SYSTEMCTL; | |
115 | static enum dot { | |
116 | DOT_ALL, | |
117 | DOT_ORDER, | |
118 | DOT_REQUIRE | |
119 | } arg_dot = DOT_ALL; | |
120 | static enum transport { | |
121 | TRANSPORT_NORMAL, | |
122 | TRANSPORT_SSH, | |
123 | TRANSPORT_POLKIT | |
124 | } arg_transport = TRANSPORT_NORMAL; | |
125 | static const char *arg_host = NULL; | |
126 | static bool arg_follow = false; | |
127 | static unsigned arg_lines = 10; | |
128 | static OutputMode arg_output = OUTPUT_SHORT; | |
129 | ||
130 | static bool private_bus = false; | |
131 | ||
132 | static int daemon_reload(DBusConnection *bus, char **args); | |
133 | static void halt_now(enum action a); | |
134 | ||
135 | static bool on_tty(void) { | |
136 | static int t = -1; | |
137 | ||
138 | /* Note that this is invoked relatively early, before we start | |
139 | * the pager. That means the value we return reflects whether | |
140 | * we originally were started on a tty, not if we currently | |
141 | * are. But this is intended, since we want colour and so on | |
142 | * when run in our own pager. */ | |
143 | ||
144 | if (_unlikely_(t < 0)) | |
145 | t = isatty(STDOUT_FILENO) > 0; | |
146 | ||
147 | return t; | |
148 | } | |
149 | ||
150 | static void pager_open_if_enabled(void) { | |
151 | ||
152 | /* Cache result before we open the pager */ | |
153 | on_tty(); | |
154 | ||
155 | if (arg_no_pager) | |
156 | return; | |
157 | ||
158 | pager_open(); | |
159 | } | |
160 | ||
161 | static void ask_password_agent_open_if_enabled(void) { | |
162 | ||
163 | /* Open the password agent as a child process if necessary */ | |
164 | ||
165 | if (!arg_ask_password) | |
166 | return; | |
167 | ||
168 | if (arg_scope != UNIT_FILE_SYSTEM) | |
169 | return; | |
170 | ||
171 | ask_password_agent_open(); | |
172 | } | |
173 | ||
174 | static void polkit_agent_open_if_enabled(void) { | |
175 | ||
176 | /* Open the polkit agent as a child process if necessary */ | |
177 | ||
178 | if (!arg_ask_password) | |
179 | return; | |
180 | ||
181 | if (arg_scope != UNIT_FILE_SYSTEM) | |
182 | return; | |
183 | ||
184 | polkit_agent_open(); | |
185 | } | |
186 | ||
187 | static const char *ansi_highlight_red(bool b) { | |
188 | ||
189 | if (!on_tty()) | |
190 | return ""; | |
191 | ||
192 | return b ? ANSI_HIGHLIGHT_RED_ON : ANSI_HIGHLIGHT_OFF; | |
193 | } | |
194 | ||
195 | static const char *ansi_highlight_green(bool b) { | |
196 | ||
197 | if (!on_tty()) | |
198 | return ""; | |
199 | ||
200 | return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF; | |
201 | } | |
202 | ||
203 | static bool error_is_no_service(const DBusError *error) { | |
204 | assert(error); | |
205 | ||
206 | if (!dbus_error_is_set(error)) | |
207 | return false; | |
208 | ||
209 | if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER)) | |
210 | return true; | |
211 | ||
212 | if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN)) | |
213 | return true; | |
214 | ||
215 | return startswith(error->name, "org.freedesktop.DBus.Error.Spawn."); | |
216 | } | |
217 | ||
218 | static int translate_bus_error_to_exit_status(int r, const DBusError *error) { | |
219 | assert(error); | |
220 | ||
221 | if (!dbus_error_is_set(error)) | |
222 | return r; | |
223 | ||
224 | if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) || | |
225 | dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) || | |
226 | dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) || | |
227 | dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE)) | |
228 | return EXIT_NOPERMISSION; | |
229 | ||
230 | if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT)) | |
231 | return EXIT_NOTINSTALLED; | |
232 | ||
233 | if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) || | |
234 | dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED)) | |
235 | return EXIT_NOTIMPLEMENTED; | |
236 | ||
237 | if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) | |
238 | return EXIT_NOTCONFIGURED; | |
239 | ||
240 | if (r != 0) | |
241 | return r; | |
242 | ||
243 | return EXIT_FAILURE; | |
244 | } | |
245 | ||
246 | static void warn_wall(enum action a) { | |
247 | static const char *table[_ACTION_MAX] = { | |
248 | [ACTION_HALT] = "The system is going down for system halt NOW!", | |
249 | [ACTION_REBOOT] = "The system is going down for reboot NOW!", | |
250 | [ACTION_POWEROFF] = "The system is going down for power-off NOW!", | |
251 | [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!", | |
252 | [ACTION_RESCUE] = "The system is going down to rescue mode NOW!", | |
253 | [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!" | |
254 | }; | |
255 | ||
256 | if (arg_no_wall) | |
257 | return; | |
258 | ||
259 | if (arg_wall) { | |
260 | char *p; | |
261 | ||
262 | p = strv_join(arg_wall, " "); | |
263 | if (!p) { | |
264 | log_error("Failed to join strings."); | |
265 | return; | |
266 | } | |
267 | ||
268 | if (*p) { | |
269 | utmp_wall(p, NULL); | |
270 | free(p); | |
271 | return; | |
272 | } | |
273 | ||
274 | free(p); | |
275 | } | |
276 | ||
277 | if (!table[a]) | |
278 | return; | |
279 | ||
280 | utmp_wall(table[a], NULL); | |
281 | } | |
282 | ||
283 | static bool avoid_bus(void) { | |
284 | ||
285 | if (running_in_chroot() > 0) | |
286 | return true; | |
287 | ||
288 | if (sd_booted() <= 0) | |
289 | return true; | |
290 | ||
291 | if (!isempty(arg_root)) | |
292 | return true; | |
293 | ||
294 | if (arg_scope == UNIT_FILE_GLOBAL) | |
295 | return true; | |
296 | ||
297 | return false; | |
298 | } | |
299 | ||
300 | struct unit_info { | |
301 | const char *id; | |
302 | const char *description; | |
303 | const char *load_state; | |
304 | const char *active_state; | |
305 | const char *sub_state; | |
306 | const char *following; | |
307 | const char *unit_path; | |
308 | uint32_t job_id; | |
309 | const char *job_type; | |
310 | const char *job_path; | |
311 | }; | |
312 | ||
313 | static int compare_unit_info(const void *a, const void *b) { | |
314 | const char *d1, *d2; | |
315 | const struct unit_info *u = a, *v = b; | |
316 | ||
317 | d1 = strrchr(u->id, '.'); | |
318 | d2 = strrchr(v->id, '.'); | |
319 | ||
320 | if (d1 && d2) { | |
321 | int r; | |
322 | ||
323 | if ((r = strcasecmp(d1, d2)) != 0) | |
324 | return r; | |
325 | } | |
326 | ||
327 | return strcasecmp(u->id, v->id); | |
328 | } | |
329 | ||
330 | static bool output_show_unit(const struct unit_info *u) { | |
331 | const char *dot; | |
332 | ||
333 | if (arg_failed) | |
334 | return streq(u->active_state, "failed"); | |
335 | ||
336 | return (!arg_type || ((dot = strrchr(u->id, '.')) && | |
337 | streq(dot+1, arg_type))) && | |
338 | (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0); | |
339 | } | |
340 | ||
341 | static void output_units_list(const struct unit_info *unit_infos, unsigned c) { | |
342 | unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0; | |
343 | const struct unit_info *u; | |
344 | ||
345 | max_id_len = sizeof("UNIT")-1; | |
346 | active_len = sizeof("ACTIVE")-1; | |
347 | sub_len = sizeof("SUB")-1; | |
348 | job_len = sizeof("JOB")-1; | |
349 | desc_len = 0; | |
350 | ||
351 | for (u = unit_infos; u < unit_infos + c; u++) { | |
352 | if (!output_show_unit(u)) | |
353 | continue; | |
354 | ||
355 | max_id_len = MAX(max_id_len, strlen(u->id)); | |
356 | active_len = MAX(active_len, strlen(u->active_state)); | |
357 | sub_len = MAX(sub_len, strlen(u->sub_state)); | |
358 | if (u->job_id != 0) | |
359 | job_len = MAX(job_len, strlen(u->job_type)); | |
360 | } | |
361 | ||
362 | if (!arg_full) { | |
363 | unsigned basic_len; | |
364 | id_len = MIN(max_id_len, 25); | |
365 | basic_len = 5 + id_len + 6 + active_len + sub_len + job_len; | |
366 | if (basic_len < (unsigned) columns()) { | |
367 | unsigned extra_len, incr; | |
368 | extra_len = columns() - basic_len; | |
369 | /* Either UNIT already got 25, or is fully satisfied. | |
370 | * Grant up to 25 to DESC now. */ | |
371 | incr = MIN(extra_len, 25); | |
372 | desc_len += incr; | |
373 | extra_len -= incr; | |
374 | /* split the remaining space between UNIT and DESC, | |
375 | * but do not give UNIT more than it needs. */ | |
376 | if (extra_len > 0) { | |
377 | incr = MIN(extra_len / 2, max_id_len - id_len); | |
378 | id_len += incr; | |
379 | desc_len += extra_len - incr; | |
380 | } | |
381 | } | |
382 | } else | |
383 | id_len = max_id_len; | |
384 | ||
385 | if (!arg_no_legend) { | |
386 | printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD", | |
387 | active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB"); | |
388 | if (!arg_full && arg_no_pager) | |
389 | printf("%.*s\n", desc_len, "DESCRIPTION"); | |
390 | else | |
391 | printf("%s\n", "DESCRIPTION"); | |
392 | } | |
393 | ||
394 | for (u = unit_infos; u < unit_infos + c; u++) { | |
395 | char *e; | |
396 | const char *on_loaded, *off_loaded; | |
397 | const char *on_active, *off_active; | |
398 | ||
399 | if (!output_show_unit(u)) | |
400 | continue; | |
401 | ||
402 | n_shown++; | |
403 | ||
404 | if (streq(u->load_state, "error")) { | |
405 | on_loaded = ansi_highlight_red(true); | |
406 | off_loaded = ansi_highlight_red(false); | |
407 | } else | |
408 | on_loaded = off_loaded = ""; | |
409 | ||
410 | if (streq(u->active_state, "failed")) { | |
411 | on_active = ansi_highlight_red(true); | |
412 | off_active = ansi_highlight_red(false); | |
413 | } else | |
414 | on_active = off_active = ""; | |
415 | ||
416 | e = arg_full ? NULL : ellipsize(u->id, id_len, 33); | |
417 | ||
418 | printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ", | |
419 | id_len, e ? e : u->id, | |
420 | on_loaded, u->load_state, off_loaded, | |
421 | on_active, active_len, u->active_state, | |
422 | sub_len, u->sub_state, off_active, | |
423 | job_len, u->job_id ? u->job_type : ""); | |
424 | if (!arg_full && arg_no_pager) | |
425 | printf("%.*s\n", desc_len, u->description); | |
426 | else | |
427 | printf("%s\n", u->description); | |
428 | ||
429 | free(e); | |
430 | } | |
431 | ||
432 | if (!arg_no_legend) { | |
433 | printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n" | |
434 | "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n" | |
435 | "SUB = The low-level unit activation state, values depend on unit type.\n" | |
436 | "JOB = Pending job for the unit.\n"); | |
437 | ||
438 | if (arg_all) | |
439 | printf("\n%u units listed.\n", n_shown); | |
440 | else | |
441 | printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown); | |
442 | } | |
443 | } | |
444 | ||
445 | static int list_units(DBusConnection *bus, char **args) { | |
446 | DBusMessage *m = NULL, *reply = NULL; | |
447 | DBusError error; | |
448 | int r; | |
449 | DBusMessageIter iter, sub, sub2; | |
450 | unsigned c = 0, n_units = 0; | |
451 | struct unit_info *unit_infos = NULL; | |
452 | ||
453 | dbus_error_init(&error); | |
454 | ||
455 | assert(bus); | |
456 | ||
457 | pager_open_if_enabled(); | |
458 | ||
459 | if (!(m = dbus_message_new_method_call( | |
460 | "org.freedesktop.systemd1", | |
461 | "/org/freedesktop/systemd1", | |
462 | "org.freedesktop.systemd1.Manager", | |
463 | "ListUnits"))) { | |
464 | log_error("Could not allocate message."); | |
465 | return -ENOMEM; | |
466 | } | |
467 | ||
468 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
469 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
470 | r = -EIO; | |
471 | goto finish; | |
472 | } | |
473 | ||
474 | if (!dbus_message_iter_init(reply, &iter) || | |
475 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
476 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
477 | log_error("Failed to parse reply."); | |
478 | r = -EIO; | |
479 | goto finish; | |
480 | } | |
481 | ||
482 | dbus_message_iter_recurse(&iter, &sub); | |
483 | ||
484 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
485 | struct unit_info *u; | |
486 | ||
487 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
488 | log_error("Failed to parse reply."); | |
489 | r = -EIO; | |
490 | goto finish; | |
491 | } | |
492 | ||
493 | if (c >= n_units) { | |
494 | struct unit_info *w; | |
495 | ||
496 | n_units = MAX(2*c, 16); | |
497 | w = realloc(unit_infos, sizeof(struct unit_info) * n_units); | |
498 | ||
499 | if (!w) { | |
500 | log_error("Failed to allocate unit array."); | |
501 | r = -ENOMEM; | |
502 | goto finish; | |
503 | } | |
504 | ||
505 | unit_infos = w; | |
506 | } | |
507 | ||
508 | u = unit_infos+c; | |
509 | ||
510 | dbus_message_iter_recurse(&sub, &sub2); | |
511 | ||
512 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 || | |
513 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 || | |
514 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 || | |
515 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 || | |
516 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 || | |
517 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 || | |
518 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 || | |
519 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 || | |
520 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 || | |
521 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) { | |
522 | log_error("Failed to parse reply."); | |
523 | r = -EIO; | |
524 | goto finish; | |
525 | } | |
526 | ||
527 | dbus_message_iter_next(&sub); | |
528 | c++; | |
529 | } | |
530 | ||
531 | if (c > 0) { | |
532 | qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info); | |
533 | output_units_list(unit_infos, c); | |
534 | } | |
535 | ||
536 | r = 0; | |
537 | ||
538 | finish: | |
539 | if (m) | |
540 | dbus_message_unref(m); | |
541 | ||
542 | if (reply) | |
543 | dbus_message_unref(reply); | |
544 | ||
545 | free(unit_infos); | |
546 | ||
547 | dbus_error_free(&error); | |
548 | ||
549 | return r; | |
550 | } | |
551 | ||
552 | static int compare_unit_file_list(const void *a, const void *b) { | |
553 | const char *d1, *d2; | |
554 | const UnitFileList *u = a, *v = b; | |
555 | ||
556 | d1 = strrchr(u->path, '.'); | |
557 | d2 = strrchr(v->path, '.'); | |
558 | ||
559 | if (d1 && d2) { | |
560 | int r; | |
561 | ||
562 | r = strcasecmp(d1, d2); | |
563 | if (r != 0) | |
564 | return r; | |
565 | } | |
566 | ||
567 | return strcasecmp(path_get_file_name(u->path), path_get_file_name(v->path)); | |
568 | } | |
569 | ||
570 | static bool output_show_unit_file(const UnitFileList *u) { | |
571 | const char *dot; | |
572 | ||
573 | return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type)); | |
574 | } | |
575 | ||
576 | static void output_unit_file_list(const UnitFileList *units, unsigned c) { | |
577 | unsigned max_id_len, id_cols, state_cols, n_shown = 0; | |
578 | const UnitFileList *u; | |
579 | ||
580 | max_id_len = sizeof("UNIT FILE")-1; | |
581 | state_cols = sizeof("STATE")-1; | |
582 | for (u = units; u < units + c; u++) { | |
583 | if (!output_show_unit_file(u)) | |
584 | continue; | |
585 | ||
586 | max_id_len = MAX(max_id_len, strlen(path_get_file_name(u->path))); | |
587 | state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state))); | |
588 | } | |
589 | ||
590 | if (!arg_full) { | |
591 | unsigned basic_cols; | |
592 | id_cols = MIN(max_id_len, 25); | |
593 | basic_cols = 1 + id_cols + state_cols; | |
594 | if (basic_cols < (unsigned) columns()) | |
595 | id_cols += MIN(columns() - basic_cols, max_id_len - id_cols); | |
596 | } else | |
597 | id_cols = max_id_len; | |
598 | ||
599 | if (!arg_no_legend) | |
600 | printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE"); | |
601 | ||
602 | for (u = units; u < units + c; u++) { | |
603 | char *e; | |
604 | const char *on, *off; | |
605 | const char *id; | |
606 | ||
607 | if (!output_show_unit_file(u)) | |
608 | continue; | |
609 | ||
610 | n_shown++; | |
611 | ||
612 | if (u->state == UNIT_FILE_MASKED || | |
613 | u->state == UNIT_FILE_MASKED_RUNTIME || | |
614 | u->state == UNIT_FILE_DISABLED) { | |
615 | on = ansi_highlight_red(true); | |
616 | off = ansi_highlight_red(false); | |
617 | } else if (u->state == UNIT_FILE_ENABLED) { | |
618 | on = ansi_highlight_green(true); | |
619 | off = ansi_highlight_green(false); | |
620 | } else | |
621 | on = off = ""; | |
622 | ||
623 | id = path_get_file_name(u->path); | |
624 | ||
625 | e = arg_full ? NULL : ellipsize(id, id_cols, 33); | |
626 | ||
627 | printf("%-*s %s%-*s%s\n", | |
628 | id_cols, e ? e : id, | |
629 | on, state_cols, unit_file_state_to_string(u->state), off); | |
630 | ||
631 | free(e); | |
632 | } | |
633 | ||
634 | if (!arg_no_legend) | |
635 | printf("\n%u unit files listed.\n", n_shown); | |
636 | } | |
637 | ||
638 | static int list_unit_files(DBusConnection *bus, char **args) { | |
639 | DBusMessage *m = NULL, *reply = NULL; | |
640 | DBusError error; | |
641 | int r; | |
642 | DBusMessageIter iter, sub, sub2; | |
643 | unsigned c = 0, n_units = 0; | |
644 | UnitFileList *units = NULL; | |
645 | ||
646 | dbus_error_init(&error); | |
647 | ||
648 | pager_open_if_enabled(); | |
649 | ||
650 | if (avoid_bus()) { | |
651 | Hashmap *h; | |
652 | UnitFileList *u; | |
653 | Iterator i; | |
654 | ||
655 | h = hashmap_new(string_hash_func, string_compare_func); | |
656 | if (!h) { | |
657 | log_error("Out of memory"); | |
658 | return -ENOMEM; | |
659 | } | |
660 | ||
661 | r = unit_file_get_list(arg_scope, arg_root, h); | |
662 | if (r < 0) { | |
663 | unit_file_list_free(h); | |
664 | log_error("Failed to get unit file list: %s", strerror(-r)); | |
665 | return r; | |
666 | } | |
667 | ||
668 | n_units = hashmap_size(h); | |
669 | units = new(UnitFileList, n_units); | |
670 | if (!units) { | |
671 | unit_file_list_free(h); | |
672 | log_error("Out of memory"); | |
673 | return -ENOMEM; | |
674 | } | |
675 | ||
676 | HASHMAP_FOREACH(u, h, i) { | |
677 | memcpy(units + c++, u, sizeof(UnitFileList)); | |
678 | free(u); | |
679 | } | |
680 | ||
681 | hashmap_free(h); | |
682 | } else { | |
683 | assert(bus); | |
684 | ||
685 | m = dbus_message_new_method_call( | |
686 | "org.freedesktop.systemd1", | |
687 | "/org/freedesktop/systemd1", | |
688 | "org.freedesktop.systemd1.Manager", | |
689 | "ListUnitFiles"); | |
690 | if (!m) { | |
691 | log_error("Could not allocate message."); | |
692 | return -ENOMEM; | |
693 | } | |
694 | ||
695 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
696 | if (!reply) { | |
697 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
698 | r = -EIO; | |
699 | goto finish; | |
700 | } | |
701 | ||
702 | if (!dbus_message_iter_init(reply, &iter) || | |
703 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
704 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
705 | log_error("Failed to parse reply."); | |
706 | r = -EIO; | |
707 | goto finish; | |
708 | } | |
709 | ||
710 | dbus_message_iter_recurse(&iter, &sub); | |
711 | ||
712 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
713 | UnitFileList *u; | |
714 | const char *state; | |
715 | ||
716 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
717 | log_error("Failed to parse reply."); | |
718 | r = -EIO; | |
719 | goto finish; | |
720 | } | |
721 | ||
722 | if (c >= n_units) { | |
723 | UnitFileList *w; | |
724 | ||
725 | n_units = MAX(2*c, 16); | |
726 | w = realloc(units, sizeof(struct UnitFileList) * n_units); | |
727 | ||
728 | if (!w) { | |
729 | log_error("Failed to allocate unit array."); | |
730 | r = -ENOMEM; | |
731 | goto finish; | |
732 | } | |
733 | ||
734 | units = w; | |
735 | } | |
736 | ||
737 | u = units+c; | |
738 | ||
739 | dbus_message_iter_recurse(&sub, &sub2); | |
740 | ||
741 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 || | |
742 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) { | |
743 | log_error("Failed to parse reply."); | |
744 | r = -EIO; | |
745 | goto finish; | |
746 | } | |
747 | ||
748 | u->state = unit_file_state_from_string(state); | |
749 | ||
750 | dbus_message_iter_next(&sub); | |
751 | c++; | |
752 | } | |
753 | } | |
754 | ||
755 | if (c > 0) { | |
756 | qsort(units, c, sizeof(UnitFileList), compare_unit_file_list); | |
757 | output_unit_file_list(units, c); | |
758 | } | |
759 | ||
760 | r = 0; | |
761 | ||
762 | finish: | |
763 | if (m) | |
764 | dbus_message_unref(m); | |
765 | ||
766 | if (reply) | |
767 | dbus_message_unref(reply); | |
768 | ||
769 | free(units); | |
770 | ||
771 | dbus_error_free(&error); | |
772 | ||
773 | return r; | |
774 | } | |
775 | ||
776 | static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) { | |
777 | static const char * const colors[] = { | |
778 | "Requires", "[color=\"black\"]", | |
779 | "RequiresOverridable", "[color=\"black\"]", | |
780 | "Requisite", "[color=\"darkblue\"]", | |
781 | "RequisiteOverridable", "[color=\"darkblue\"]", | |
782 | "Wants", "[color=\"darkgrey\"]", | |
783 | "Conflicts", "[color=\"red\"]", | |
784 | "ConflictedBy", "[color=\"red\"]", | |
785 | "After", "[color=\"green\"]" | |
786 | }; | |
787 | ||
788 | const char *c = NULL; | |
789 | unsigned i; | |
790 | ||
791 | assert(name); | |
792 | assert(prop); | |
793 | assert(iter); | |
794 | ||
795 | for (i = 0; i < ELEMENTSOF(colors); i += 2) | |
796 | if (streq(colors[i], prop)) { | |
797 | c = colors[i+1]; | |
798 | break; | |
799 | } | |
800 | ||
801 | if (!c) | |
802 | return 0; | |
803 | ||
804 | if (arg_dot != DOT_ALL) | |
805 | if ((arg_dot == DOT_ORDER) != streq(prop, "After")) | |
806 | return 0; | |
807 | ||
808 | switch (dbus_message_iter_get_arg_type(iter)) { | |
809 | ||
810 | case DBUS_TYPE_ARRAY: | |
811 | ||
812 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { | |
813 | DBusMessageIter sub; | |
814 | ||
815 | dbus_message_iter_recurse(iter, &sub); | |
816 | ||
817 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
818 | const char *s; | |
819 | ||
820 | assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); | |
821 | dbus_message_iter_get_basic(&sub, &s); | |
822 | printf("\t\"%s\"->\"%s\" %s;\n", name, s, c); | |
823 | ||
824 | dbus_message_iter_next(&sub); | |
825 | } | |
826 | ||
827 | return 0; | |
828 | } | |
829 | } | |
830 | ||
831 | return 0; | |
832 | } | |
833 | ||
834 | static int dot_one(DBusConnection *bus, const char *name, const char *path) { | |
835 | DBusMessage *m = NULL, *reply = NULL; | |
836 | const char *interface = "org.freedesktop.systemd1.Unit"; | |
837 | int r; | |
838 | DBusError error; | |
839 | DBusMessageIter iter, sub, sub2, sub3; | |
840 | ||
841 | assert(bus); | |
842 | assert(path); | |
843 | ||
844 | dbus_error_init(&error); | |
845 | ||
846 | if (!(m = dbus_message_new_method_call( | |
847 | "org.freedesktop.systemd1", | |
848 | path, | |
849 | "org.freedesktop.DBus.Properties", | |
850 | "GetAll"))) { | |
851 | log_error("Could not allocate message."); | |
852 | r = -ENOMEM; | |
853 | goto finish; | |
854 | } | |
855 | ||
856 | if (!dbus_message_append_args(m, | |
857 | DBUS_TYPE_STRING, &interface, | |
858 | DBUS_TYPE_INVALID)) { | |
859 | log_error("Could not append arguments to message."); | |
860 | r = -ENOMEM; | |
861 | goto finish; | |
862 | } | |
863 | ||
864 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
865 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
866 | r = -EIO; | |
867 | goto finish; | |
868 | } | |
869 | ||
870 | if (!dbus_message_iter_init(reply, &iter) || | |
871 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
872 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { | |
873 | log_error("Failed to parse reply."); | |
874 | r = -EIO; | |
875 | goto finish; | |
876 | } | |
877 | ||
878 | dbus_message_iter_recurse(&iter, &sub); | |
879 | ||
880 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
881 | const char *prop; | |
882 | ||
883 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { | |
884 | log_error("Failed to parse reply."); | |
885 | r = -EIO; | |
886 | goto finish; | |
887 | } | |
888 | ||
889 | dbus_message_iter_recurse(&sub, &sub2); | |
890 | ||
891 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) { | |
892 | log_error("Failed to parse reply."); | |
893 | r = -EIO; | |
894 | goto finish; | |
895 | } | |
896 | ||
897 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { | |
898 | log_error("Failed to parse reply."); | |
899 | r = -EIO; | |
900 | goto finish; | |
901 | } | |
902 | ||
903 | dbus_message_iter_recurse(&sub2, &sub3); | |
904 | ||
905 | if (dot_one_property(name, prop, &sub3)) { | |
906 | log_error("Failed to parse reply."); | |
907 | r = -EIO; | |
908 | goto finish; | |
909 | } | |
910 | ||
911 | dbus_message_iter_next(&sub); | |
912 | } | |
913 | ||
914 | r = 0; | |
915 | ||
916 | finish: | |
917 | if (m) | |
918 | dbus_message_unref(m); | |
919 | ||
920 | if (reply) | |
921 | dbus_message_unref(reply); | |
922 | ||
923 | dbus_error_free(&error); | |
924 | ||
925 | return r; | |
926 | } | |
927 | ||
928 | static int dot(DBusConnection *bus, char **args) { | |
929 | DBusMessage *m = NULL, *reply = NULL; | |
930 | DBusError error; | |
931 | int r; | |
932 | DBusMessageIter iter, sub, sub2; | |
933 | ||
934 | dbus_error_init(&error); | |
935 | ||
936 | assert(bus); | |
937 | ||
938 | if (!(m = dbus_message_new_method_call( | |
939 | "org.freedesktop.systemd1", | |
940 | "/org/freedesktop/systemd1", | |
941 | "org.freedesktop.systemd1.Manager", | |
942 | "ListUnits"))) { | |
943 | log_error("Could not allocate message."); | |
944 | return -ENOMEM; | |
945 | } | |
946 | ||
947 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
948 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
949 | r = -EIO; | |
950 | goto finish; | |
951 | } | |
952 | ||
953 | if (!dbus_message_iter_init(reply, &iter) || | |
954 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
955 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
956 | log_error("Failed to parse reply."); | |
957 | r = -EIO; | |
958 | goto finish; | |
959 | } | |
960 | ||
961 | printf("digraph systemd {\n"); | |
962 | ||
963 | dbus_message_iter_recurse(&iter, &sub); | |
964 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
965 | const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path; | |
966 | ||
967 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
968 | log_error("Failed to parse reply."); | |
969 | r = -EIO; | |
970 | goto finish; | |
971 | } | |
972 | ||
973 | dbus_message_iter_recurse(&sub, &sub2); | |
974 | ||
975 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 || | |
976 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 || | |
977 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || | |
978 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || | |
979 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || | |
980 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 || | |
981 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) { | |
982 | log_error("Failed to parse reply."); | |
983 | r = -EIO; | |
984 | goto finish; | |
985 | } | |
986 | ||
987 | if ((r = dot_one(bus, id, unit_path)) < 0) | |
988 | goto finish; | |
989 | ||
990 | /* printf("\t\"%s\";\n", id); */ | |
991 | dbus_message_iter_next(&sub); | |
992 | } | |
993 | ||
994 | printf("}\n"); | |
995 | ||
996 | log_info(" Color legend: black = Requires\n" | |
997 | " dark blue = Requisite\n" | |
998 | " dark grey = Wants\n" | |
999 | " red = Conflicts\n" | |
1000 | " green = After\n"); | |
1001 | ||
1002 | if (on_tty()) | |
1003 | log_notice("-- You probably want to process this output with graphviz' dot tool.\n" | |
1004 | "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n"); | |
1005 | ||
1006 | r = 0; | |
1007 | ||
1008 | finish: | |
1009 | if (m) | |
1010 | dbus_message_unref(m); | |
1011 | ||
1012 | if (reply) | |
1013 | dbus_message_unref(reply); | |
1014 | ||
1015 | dbus_error_free(&error); | |
1016 | ||
1017 | return r; | |
1018 | } | |
1019 | ||
1020 | static int list_jobs(DBusConnection *bus, char **args) { | |
1021 | DBusMessage *m = NULL, *reply = NULL; | |
1022 | DBusError error; | |
1023 | int r; | |
1024 | DBusMessageIter iter, sub, sub2; | |
1025 | unsigned k = 0; | |
1026 | ||
1027 | dbus_error_init(&error); | |
1028 | ||
1029 | assert(bus); | |
1030 | ||
1031 | pager_open_if_enabled(); | |
1032 | ||
1033 | if (!(m = dbus_message_new_method_call( | |
1034 | "org.freedesktop.systemd1", | |
1035 | "/org/freedesktop/systemd1", | |
1036 | "org.freedesktop.systemd1.Manager", | |
1037 | "ListJobs"))) { | |
1038 | log_error("Could not allocate message."); | |
1039 | return -ENOMEM; | |
1040 | } | |
1041 | ||
1042 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1043 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1044 | r = -EIO; | |
1045 | goto finish; | |
1046 | } | |
1047 | ||
1048 | if (!dbus_message_iter_init(reply, &iter) || | |
1049 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
1050 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
1051 | log_error("Failed to parse reply."); | |
1052 | r = -EIO; | |
1053 | goto finish; | |
1054 | } | |
1055 | ||
1056 | dbus_message_iter_recurse(&iter, &sub); | |
1057 | ||
1058 | if (on_tty()) | |
1059 | printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE"); | |
1060 | ||
1061 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
1062 | const char *name, *type, *state, *job_path, *unit_path; | |
1063 | uint32_t id; | |
1064 | char *e; | |
1065 | ||
1066 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
1067 | log_error("Failed to parse reply."); | |
1068 | r = -EIO; | |
1069 | goto finish; | |
1070 | } | |
1071 | ||
1072 | dbus_message_iter_recurse(&sub, &sub2); | |
1073 | ||
1074 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 || | |
1075 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 || | |
1076 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 || | |
1077 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 || | |
1078 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 || | |
1079 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) { | |
1080 | log_error("Failed to parse reply."); | |
1081 | r = -EIO; | |
1082 | goto finish; | |
1083 | } | |
1084 | ||
1085 | e = arg_full ? NULL : ellipsize(name, 25, 33); | |
1086 | printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state); | |
1087 | free(e); | |
1088 | ||
1089 | k++; | |
1090 | ||
1091 | dbus_message_iter_next(&sub); | |
1092 | } | |
1093 | ||
1094 | if (on_tty()) | |
1095 | printf("\n%u jobs listed.\n", k); | |
1096 | ||
1097 | r = 0; | |
1098 | ||
1099 | finish: | |
1100 | if (m) | |
1101 | dbus_message_unref(m); | |
1102 | ||
1103 | if (reply) | |
1104 | dbus_message_unref(reply); | |
1105 | ||
1106 | dbus_error_free(&error); | |
1107 | ||
1108 | return r; | |
1109 | } | |
1110 | ||
1111 | static int load_unit(DBusConnection *bus, char **args) { | |
1112 | DBusMessage *m = NULL; | |
1113 | DBusError error; | |
1114 | int r; | |
1115 | char **name; | |
1116 | ||
1117 | dbus_error_init(&error); | |
1118 | ||
1119 | assert(bus); | |
1120 | assert(args); | |
1121 | ||
1122 | STRV_FOREACH(name, args+1) { | |
1123 | DBusMessage *reply; | |
1124 | ||
1125 | if (!(m = dbus_message_new_method_call( | |
1126 | "org.freedesktop.systemd1", | |
1127 | "/org/freedesktop/systemd1", | |
1128 | "org.freedesktop.systemd1.Manager", | |
1129 | "LoadUnit"))) { | |
1130 | log_error("Could not allocate message."); | |
1131 | r = -ENOMEM; | |
1132 | goto finish; | |
1133 | } | |
1134 | ||
1135 | if (!dbus_message_append_args(m, | |
1136 | DBUS_TYPE_STRING, name, | |
1137 | DBUS_TYPE_INVALID)) { | |
1138 | log_error("Could not append arguments to message."); | |
1139 | r = -ENOMEM; | |
1140 | goto finish; | |
1141 | } | |
1142 | ||
1143 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1144 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1145 | r = -EIO; | |
1146 | goto finish; | |
1147 | } | |
1148 | ||
1149 | dbus_message_unref(m); | |
1150 | dbus_message_unref(reply); | |
1151 | ||
1152 | m = reply = NULL; | |
1153 | } | |
1154 | ||
1155 | r = 0; | |
1156 | ||
1157 | finish: | |
1158 | if (m) | |
1159 | dbus_message_unref(m); | |
1160 | ||
1161 | dbus_error_free(&error); | |
1162 | ||
1163 | return r; | |
1164 | } | |
1165 | ||
1166 | static int cancel_job(DBusConnection *bus, char **args) { | |
1167 | DBusMessage *m = NULL, *reply = NULL; | |
1168 | DBusError error; | |
1169 | int r; | |
1170 | char **name; | |
1171 | ||
1172 | dbus_error_init(&error); | |
1173 | ||
1174 | assert(bus); | |
1175 | assert(args); | |
1176 | ||
1177 | if (strv_length(args) <= 1) | |
1178 | return daemon_reload(bus, args); | |
1179 | ||
1180 | STRV_FOREACH(name, args+1) { | |
1181 | unsigned id; | |
1182 | const char *path; | |
1183 | ||
1184 | if (!(m = dbus_message_new_method_call( | |
1185 | "org.freedesktop.systemd1", | |
1186 | "/org/freedesktop/systemd1", | |
1187 | "org.freedesktop.systemd1.Manager", | |
1188 | "GetJob"))) { | |
1189 | log_error("Could not allocate message."); | |
1190 | r = -ENOMEM; | |
1191 | goto finish; | |
1192 | } | |
1193 | ||
1194 | if ((r = safe_atou(*name, &id)) < 0) { | |
1195 | log_error("Failed to parse job id: %s", strerror(-r)); | |
1196 | goto finish; | |
1197 | } | |
1198 | ||
1199 | assert_cc(sizeof(uint32_t) == sizeof(id)); | |
1200 | if (!dbus_message_append_args(m, | |
1201 | DBUS_TYPE_UINT32, &id, | |
1202 | DBUS_TYPE_INVALID)) { | |
1203 | log_error("Could not append arguments to message."); | |
1204 | r = -ENOMEM; | |
1205 | goto finish; | |
1206 | } | |
1207 | ||
1208 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1209 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1210 | r = -EIO; | |
1211 | goto finish; | |
1212 | } | |
1213 | ||
1214 | if (!dbus_message_get_args(reply, &error, | |
1215 | DBUS_TYPE_OBJECT_PATH, &path, | |
1216 | DBUS_TYPE_INVALID)) { | |
1217 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
1218 | r = -EIO; | |
1219 | goto finish; | |
1220 | } | |
1221 | ||
1222 | dbus_message_unref(m); | |
1223 | if (!(m = dbus_message_new_method_call( | |
1224 | "org.freedesktop.systemd1", | |
1225 | path, | |
1226 | "org.freedesktop.systemd1.Job", | |
1227 | "Cancel"))) { | |
1228 | log_error("Could not allocate message."); | |
1229 | r = -ENOMEM; | |
1230 | goto finish; | |
1231 | } | |
1232 | ||
1233 | dbus_message_unref(reply); | |
1234 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1235 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1236 | r = -EIO; | |
1237 | goto finish; | |
1238 | } | |
1239 | ||
1240 | dbus_message_unref(m); | |
1241 | dbus_message_unref(reply); | |
1242 | m = reply = NULL; | |
1243 | } | |
1244 | ||
1245 | r = 0; | |
1246 | ||
1247 | finish: | |
1248 | if (m) | |
1249 | dbus_message_unref(m); | |
1250 | ||
1251 | if (reply) | |
1252 | dbus_message_unref(reply); | |
1253 | ||
1254 | dbus_error_free(&error); | |
1255 | ||
1256 | return r; | |
1257 | } | |
1258 | ||
1259 | static bool need_daemon_reload(DBusConnection *bus, const char *unit) { | |
1260 | DBusMessage *m = NULL, *reply = NULL; | |
1261 | dbus_bool_t b = FALSE; | |
1262 | DBusMessageIter iter, sub; | |
1263 | const char | |
1264 | *interface = "org.freedesktop.systemd1.Unit", | |
1265 | *property = "NeedDaemonReload", | |
1266 | *path; | |
1267 | ||
1268 | /* We ignore all errors here, since this is used to show a warning only */ | |
1269 | ||
1270 | if (!(m = dbus_message_new_method_call( | |
1271 | "org.freedesktop.systemd1", | |
1272 | "/org/freedesktop/systemd1", | |
1273 | "org.freedesktop.systemd1.Manager", | |
1274 | "GetUnit"))) | |
1275 | goto finish; | |
1276 | ||
1277 | if (!dbus_message_append_args(m, | |
1278 | DBUS_TYPE_STRING, &unit, | |
1279 | DBUS_TYPE_INVALID)) | |
1280 | goto finish; | |
1281 | ||
1282 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) | |
1283 | goto finish; | |
1284 | ||
1285 | if (!dbus_message_get_args(reply, NULL, | |
1286 | DBUS_TYPE_OBJECT_PATH, &path, | |
1287 | DBUS_TYPE_INVALID)) | |
1288 | goto finish; | |
1289 | ||
1290 | dbus_message_unref(m); | |
1291 | if (!(m = dbus_message_new_method_call( | |
1292 | "org.freedesktop.systemd1", | |
1293 | path, | |
1294 | "org.freedesktop.DBus.Properties", | |
1295 | "Get"))) | |
1296 | goto finish; | |
1297 | ||
1298 | if (!dbus_message_append_args(m, | |
1299 | DBUS_TYPE_STRING, &interface, | |
1300 | DBUS_TYPE_STRING, &property, | |
1301 | DBUS_TYPE_INVALID)) { | |
1302 | goto finish; | |
1303 | } | |
1304 | ||
1305 | dbus_message_unref(reply); | |
1306 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) | |
1307 | goto finish; | |
1308 | ||
1309 | if (!dbus_message_iter_init(reply, &iter) || | |
1310 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) | |
1311 | goto finish; | |
1312 | ||
1313 | dbus_message_iter_recurse(&iter, &sub); | |
1314 | ||
1315 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN) | |
1316 | goto finish; | |
1317 | ||
1318 | dbus_message_iter_get_basic(&sub, &b); | |
1319 | ||
1320 | finish: | |
1321 | if (m) | |
1322 | dbus_message_unref(m); | |
1323 | ||
1324 | if (reply) | |
1325 | dbus_message_unref(reply); | |
1326 | ||
1327 | return b; | |
1328 | } | |
1329 | ||
1330 | typedef struct WaitData { | |
1331 | Set *set; | |
1332 | char *result; | |
1333 | } WaitData; | |
1334 | ||
1335 | static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { | |
1336 | DBusError error; | |
1337 | WaitData *d = data; | |
1338 | ||
1339 | assert(connection); | |
1340 | assert(message); | |
1341 | assert(d); | |
1342 | ||
1343 | dbus_error_init(&error); | |
1344 | ||
1345 | log_debug("Got D-Bus request: %s.%s() on %s", | |
1346 | dbus_message_get_interface(message), | |
1347 | dbus_message_get_member(message), | |
1348 | dbus_message_get_path(message)); | |
1349 | ||
1350 | if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { | |
1351 | log_error("Warning! D-Bus connection terminated."); | |
1352 | dbus_connection_close(connection); | |
1353 | ||
1354 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { | |
1355 | uint32_t id; | |
1356 | const char *path, *result, *unit; | |
1357 | dbus_bool_t success = true; | |
1358 | ||
1359 | if (dbus_message_get_args(message, &error, | |
1360 | DBUS_TYPE_UINT32, &id, | |
1361 | DBUS_TYPE_OBJECT_PATH, &path, | |
1362 | DBUS_TYPE_STRING, &unit, | |
1363 | DBUS_TYPE_STRING, &result, | |
1364 | DBUS_TYPE_INVALID)) { | |
1365 | char *p; | |
1366 | ||
1367 | p = set_remove(d->set, (char*) path); | |
1368 | free(p); | |
1369 | ||
1370 | if (*result) | |
1371 | d->result = strdup(result); | |
1372 | ||
1373 | goto finish; | |
1374 | } | |
1375 | #ifndef LEGACY | |
1376 | dbus_error_free(&error); | |
1377 | if (dbus_message_get_args(message, &error, | |
1378 | DBUS_TYPE_UINT32, &id, | |
1379 | DBUS_TYPE_OBJECT_PATH, &path, | |
1380 | DBUS_TYPE_STRING, &result, | |
1381 | DBUS_TYPE_INVALID)) { | |
1382 | char *p; | |
1383 | ||
1384 | /* Compatibility with older systemd versions < | |
1385 | * 183 during upgrades. This should be dropped | |
1386 | * one day. */ | |
1387 | p = set_remove(d->set, (char*) path); | |
1388 | free(p); | |
1389 | ||
1390 | if (*result) | |
1391 | d->result = strdup(result); | |
1392 | ||
1393 | goto finish; | |
1394 | } | |
1395 | ||
1396 | dbus_error_free(&error); | |
1397 | if (dbus_message_get_args(message, &error, | |
1398 | DBUS_TYPE_UINT32, &id, | |
1399 | DBUS_TYPE_OBJECT_PATH, &path, | |
1400 | DBUS_TYPE_BOOLEAN, &success, | |
1401 | DBUS_TYPE_INVALID)) { | |
1402 | char *p; | |
1403 | ||
1404 | /* Compatibility with older systemd versions < | |
1405 | * 19 during upgrades. This should be dropped | |
1406 | * one day */ | |
1407 | ||
1408 | p = set_remove(d->set, (char*) path); | |
1409 | free(p); | |
1410 | ||
1411 | if (!success) | |
1412 | d->result = strdup("failed"); | |
1413 | ||
1414 | goto finish; | |
1415 | } | |
1416 | #endif | |
1417 | ||
1418 | log_error("Failed to parse message: %s", bus_error_message(&error)); | |
1419 | } | |
1420 | ||
1421 | finish: | |
1422 | dbus_error_free(&error); | |
1423 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; | |
1424 | } | |
1425 | ||
1426 | static int enable_wait_for_jobs(DBusConnection *bus) { | |
1427 | DBusError error; | |
1428 | ||
1429 | assert(bus); | |
1430 | ||
1431 | if (private_bus) | |
1432 | return 0; | |
1433 | ||
1434 | dbus_error_init(&error); | |
1435 | dbus_bus_add_match(bus, | |
1436 | "type='signal'," | |
1437 | "sender='org.freedesktop.systemd1'," | |
1438 | "interface='org.freedesktop.systemd1.Manager'," | |
1439 | "member='JobRemoved'," | |
1440 | "path='/org/freedesktop/systemd1'", | |
1441 | &error); | |
1442 | ||
1443 | if (dbus_error_is_set(&error)) { | |
1444 | log_error("Failed to add match: %s", bus_error_message(&error)); | |
1445 | dbus_error_free(&error); | |
1446 | return -EIO; | |
1447 | } | |
1448 | ||
1449 | /* This is slightly dirty, since we don't undo the match registrations. */ | |
1450 | return 0; | |
1451 | } | |
1452 | ||
1453 | static int wait_for_jobs(DBusConnection *bus, Set *s) { | |
1454 | int r; | |
1455 | WaitData d; | |
1456 | ||
1457 | assert(bus); | |
1458 | assert(s); | |
1459 | ||
1460 | zero(d); | |
1461 | d.set = s; | |
1462 | ||
1463 | if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) { | |
1464 | log_error("Failed to add filter."); | |
1465 | r = -ENOMEM; | |
1466 | goto finish; | |
1467 | } | |
1468 | ||
1469 | while (!set_isempty(s) && | |
1470 | dbus_connection_read_write_dispatch(bus, -1)) | |
1471 | ; | |
1472 | ||
1473 | if (!arg_quiet && d.result) { | |
1474 | if (streq(d.result, "timeout")) | |
1475 | log_error("Job timed out."); | |
1476 | else if (streq(d.result, "canceled")) | |
1477 | log_error("Job canceled."); | |
1478 | else if (streq(d.result, "dependency")) | |
1479 | log_error("A dependency job failed. See system journal for details."); | |
1480 | else if (!streq(d.result, "done") && !streq(d.result, "skipped")) | |
1481 | log_error("Job failed. See system journal and 'systemctl status' for details."); | |
1482 | } | |
1483 | ||
1484 | if (streq_ptr(d.result, "timeout")) | |
1485 | r = -ETIME; | |
1486 | else if (streq_ptr(d.result, "canceled")) | |
1487 | r = -ECANCELED; | |
1488 | else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped")) | |
1489 | r = -EIO; | |
1490 | else | |
1491 | r = 0; | |
1492 | ||
1493 | free(d.result); | |
1494 | ||
1495 | finish: | |
1496 | /* This is slightly dirty, since we don't undo the filter registration. */ | |
1497 | ||
1498 | return r; | |
1499 | } | |
1500 | ||
1501 | static int start_unit_one( | |
1502 | DBusConnection *bus, | |
1503 | const char *method, | |
1504 | const char *name, | |
1505 | const char *mode, | |
1506 | DBusError *error, | |
1507 | Set *s) { | |
1508 | ||
1509 | DBusMessage *m = NULL, *reply = NULL; | |
1510 | const char *path; | |
1511 | int r; | |
1512 | ||
1513 | assert(bus); | |
1514 | assert(method); | |
1515 | assert(name); | |
1516 | assert(mode); | |
1517 | assert(error); | |
1518 | assert(arg_no_block || s); | |
1519 | ||
1520 | if (!(m = dbus_message_new_method_call( | |
1521 | "org.freedesktop.systemd1", | |
1522 | "/org/freedesktop/systemd1", | |
1523 | "org.freedesktop.systemd1.Manager", | |
1524 | method))) { | |
1525 | log_error("Could not allocate message."); | |
1526 | r = -ENOMEM; | |
1527 | goto finish; | |
1528 | } | |
1529 | ||
1530 | if (!dbus_message_append_args(m, | |
1531 | DBUS_TYPE_STRING, &name, | |
1532 | DBUS_TYPE_STRING, &mode, | |
1533 | DBUS_TYPE_INVALID)) { | |
1534 | log_error("Could not append arguments to message."); | |
1535 | r = -ENOMEM; | |
1536 | goto finish; | |
1537 | } | |
1538 | ||
1539 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) { | |
1540 | ||
1541 | if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) { | |
1542 | /* There's always a fallback possible for | |
1543 | * legacy actions. */ | |
1544 | r = -EADDRNOTAVAIL; | |
1545 | goto finish; | |
1546 | } | |
1547 | ||
1548 | log_error("Failed to issue method call: %s", bus_error_message(error)); | |
1549 | r = -EIO; | |
1550 | goto finish; | |
1551 | } | |
1552 | ||
1553 | if (!dbus_message_get_args(reply, error, | |
1554 | DBUS_TYPE_OBJECT_PATH, &path, | |
1555 | DBUS_TYPE_INVALID)) { | |
1556 | log_error("Failed to parse reply: %s", bus_error_message(error)); | |
1557 | r = -EIO; | |
1558 | goto finish; | |
1559 | } | |
1560 | ||
1561 | if (need_daemon_reload(bus, name)) | |
1562 | log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.", | |
1563 | arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user"); | |
1564 | ||
1565 | if (!arg_no_block) { | |
1566 | char *p; | |
1567 | ||
1568 | if (!(p = strdup(path))) { | |
1569 | log_error("Failed to duplicate path."); | |
1570 | r = -ENOMEM; | |
1571 | goto finish; | |
1572 | } | |
1573 | ||
1574 | if ((r = set_put(s, p)) < 0) { | |
1575 | free(p); | |
1576 | log_error("Failed to add path to set."); | |
1577 | goto finish; | |
1578 | } | |
1579 | } | |
1580 | ||
1581 | r = 0; | |
1582 | ||
1583 | finish: | |
1584 | if (m) | |
1585 | dbus_message_unref(m); | |
1586 | ||
1587 | if (reply) | |
1588 | dbus_message_unref(reply); | |
1589 | ||
1590 | return r; | |
1591 | } | |
1592 | ||
1593 | static enum action verb_to_action(const char *verb) { | |
1594 | if (streq(verb, "halt")) | |
1595 | return ACTION_HALT; | |
1596 | else if (streq(verb, "poweroff")) | |
1597 | return ACTION_POWEROFF; | |
1598 | else if (streq(verb, "reboot")) | |
1599 | return ACTION_REBOOT; | |
1600 | else if (streq(verb, "kexec")) | |
1601 | return ACTION_KEXEC; | |
1602 | else if (streq(verb, "rescue")) | |
1603 | return ACTION_RESCUE; | |
1604 | else if (streq(verb, "emergency")) | |
1605 | return ACTION_EMERGENCY; | |
1606 | else if (streq(verb, "default")) | |
1607 | return ACTION_DEFAULT; | |
1608 | else if (streq(verb, "exit")) | |
1609 | return ACTION_EXIT; | |
1610 | else if (streq(verb, "suspend")) | |
1611 | return ACTION_SUSPEND; | |
1612 | else if (streq(verb, "hibernate")) | |
1613 | return ACTION_HIBERNATE; | |
1614 | else | |
1615 | return ACTION_INVALID; | |
1616 | } | |
1617 | ||
1618 | static int start_unit(DBusConnection *bus, char **args) { | |
1619 | ||
1620 | static const char * const table[_ACTION_MAX] = { | |
1621 | [ACTION_HALT] = SPECIAL_HALT_TARGET, | |
1622 | [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET, | |
1623 | [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET, | |
1624 | [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET, | |
1625 | [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET, | |
1626 | [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET, | |
1627 | [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET, | |
1628 | [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET, | |
1629 | [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET, | |
1630 | [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET, | |
1631 | [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET, | |
1632 | [ACTION_EXIT] = SPECIAL_EXIT_TARGET, | |
1633 | [ACTION_SUSPEND] = SPECIAL_SUSPEND_TARGET, | |
1634 | [ACTION_HIBERNATE] = SPECIAL_HIBERNATE_TARGET | |
1635 | }; | |
1636 | ||
1637 | int r, ret = 0; | |
1638 | const char *method, *mode, *one_name; | |
1639 | Set *s = NULL; | |
1640 | DBusError error; | |
1641 | char **name; | |
1642 | ||
1643 | dbus_error_init(&error); | |
1644 | ||
1645 | assert(bus); | |
1646 | ||
1647 | ask_password_agent_open_if_enabled(); | |
1648 | ||
1649 | if (arg_action == ACTION_SYSTEMCTL) { | |
1650 | method = | |
1651 | streq(args[0], "stop") || | |
1652 | streq(args[0], "condstop") ? "StopUnit" : | |
1653 | streq(args[0], "reload") ? "ReloadUnit" : | |
1654 | streq(args[0], "restart") ? "RestartUnit" : | |
1655 | ||
1656 | streq(args[0], "try-restart") || | |
1657 | streq(args[0], "condrestart") ? "TryRestartUnit" : | |
1658 | ||
1659 | streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" : | |
1660 | ||
1661 | streq(args[0], "reload-or-try-restart") || | |
1662 | streq(args[0], "condreload") || | |
1663 | ||
1664 | streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" : | |
1665 | "StartUnit"; | |
1666 | ||
1667 | mode = | |
1668 | (streq(args[0], "isolate") || | |
1669 | streq(args[0], "rescue") || | |
1670 | streq(args[0], "emergency")) ? "isolate" : arg_job_mode; | |
1671 | ||
1672 | one_name = table[verb_to_action(args[0])]; | |
1673 | ||
1674 | } else { | |
1675 | assert(arg_action < ELEMENTSOF(table)); | |
1676 | assert(table[arg_action]); | |
1677 | ||
1678 | method = "StartUnit"; | |
1679 | ||
1680 | mode = (arg_action == ACTION_EMERGENCY || | |
1681 | arg_action == ACTION_RESCUE || | |
1682 | arg_action == ACTION_RUNLEVEL2 || | |
1683 | arg_action == ACTION_RUNLEVEL3 || | |
1684 | arg_action == ACTION_RUNLEVEL4 || | |
1685 | arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace"; | |
1686 | ||
1687 | one_name = table[arg_action]; | |
1688 | } | |
1689 | ||
1690 | if (!arg_no_block) { | |
1691 | if ((ret = enable_wait_for_jobs(bus)) < 0) { | |
1692 | log_error("Could not watch jobs: %s", strerror(-ret)); | |
1693 | goto finish; | |
1694 | } | |
1695 | ||
1696 | if (!(s = set_new(string_hash_func, string_compare_func))) { | |
1697 | log_error("Failed to allocate set."); | |
1698 | ret = -ENOMEM; | |
1699 | goto finish; | |
1700 | } | |
1701 | } | |
1702 | ||
1703 | if (one_name) { | |
1704 | if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0) | |
1705 | goto finish; | |
1706 | } else { | |
1707 | STRV_FOREACH(name, args+1) | |
1708 | if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) { | |
1709 | ret = translate_bus_error_to_exit_status(r, &error); | |
1710 | dbus_error_free(&error); | |
1711 | } | |
1712 | } | |
1713 | ||
1714 | if (!arg_no_block) | |
1715 | if ((r = wait_for_jobs(bus, s)) < 0) { | |
1716 | ret = r; | |
1717 | goto finish; | |
1718 | } | |
1719 | ||
1720 | finish: | |
1721 | if (s) | |
1722 | set_free_free(s); | |
1723 | ||
1724 | dbus_error_free(&error); | |
1725 | ||
1726 | return ret; | |
1727 | } | |
1728 | ||
1729 | /* Ask systemd-logind, which might grant access to unprivileged users | |
1730 | * through PolicyKit */ | |
1731 | static int reboot_with_logind(DBusConnection *bus, enum action a) { | |
1732 | #ifdef HAVE_LOGIND | |
1733 | const char *method; | |
1734 | DBusMessage *m = NULL, *reply = NULL; | |
1735 | DBusError error; | |
1736 | dbus_bool_t interactive = true; | |
1737 | int r; | |
1738 | ||
1739 | dbus_error_init(&error); | |
1740 | ||
1741 | polkit_agent_open_if_enabled(); | |
1742 | ||
1743 | switch (a) { | |
1744 | ||
1745 | case ACTION_REBOOT: | |
1746 | method = "Reboot"; | |
1747 | break; | |
1748 | ||
1749 | case ACTION_POWEROFF: | |
1750 | method = "PowerOff"; | |
1751 | break; | |
1752 | ||
1753 | case ACTION_SUSPEND: | |
1754 | method = "Suspend"; | |
1755 | break; | |
1756 | ||
1757 | case ACTION_HIBERNATE: | |
1758 | method = "Hibernate"; | |
1759 | break; | |
1760 | ||
1761 | default: | |
1762 | return -EINVAL; | |
1763 | } | |
1764 | ||
1765 | m = dbus_message_new_method_call( | |
1766 | "org.freedesktop.login1", | |
1767 | "/org/freedesktop/login1", | |
1768 | "org.freedesktop.login1.Manager", | |
1769 | method); | |
1770 | if (!m) { | |
1771 | log_error("Could not allocate message."); | |
1772 | r = -ENOMEM; | |
1773 | goto finish; | |
1774 | } | |
1775 | ||
1776 | if (!dbus_message_append_args(m, | |
1777 | DBUS_TYPE_BOOLEAN, &interactive, | |
1778 | DBUS_TYPE_INVALID)) { | |
1779 | log_error("Could not append arguments to message."); | |
1780 | r = -ENOMEM; | |
1781 | goto finish; | |
1782 | } | |
1783 | ||
1784 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
1785 | if (!reply) { | |
1786 | if (error_is_no_service(&error)) { | |
1787 | log_debug("Failed to issue method call: %s", bus_error_message(&error)); | |
1788 | r = -ENOENT; | |
1789 | goto finish; | |
1790 | } | |
1791 | ||
1792 | if (dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) { | |
1793 | log_debug("Failed to issue method call: %s", bus_error_message(&error)); | |
1794 | r = -EACCES; | |
1795 | goto finish; | |
1796 | } | |
1797 | ||
1798 | log_info("Failed to issue method call: %s", bus_error_message(&error)); | |
1799 | r = -EIO; | |
1800 | goto finish; | |
1801 | } | |
1802 | ||
1803 | r = 0; | |
1804 | ||
1805 | finish: | |
1806 | if (m) | |
1807 | dbus_message_unref(m); | |
1808 | ||
1809 | if (reply) | |
1810 | dbus_message_unref(reply); | |
1811 | ||
1812 | dbus_error_free(&error); | |
1813 | ||
1814 | return r; | |
1815 | #else | |
1816 | return -ENOSYS; | |
1817 | #endif | |
1818 | } | |
1819 | ||
1820 | static int start_special(DBusConnection *bus, char **args) { | |
1821 | enum action a; | |
1822 | int r; | |
1823 | ||
1824 | assert(args); | |
1825 | ||
1826 | a = verb_to_action(args[0]); | |
1827 | ||
1828 | if (arg_force >= 2 && geteuid() != 0) { | |
1829 | log_error("Must be root."); | |
1830 | return -EPERM; | |
1831 | } | |
1832 | ||
1833 | if (arg_force >= 2 && | |
1834 | (a == ACTION_HALT || | |
1835 | a == ACTION_POWEROFF || | |
1836 | a == ACTION_REBOOT)) | |
1837 | halt_now(a); | |
1838 | ||
1839 | if (arg_force >= 1 && | |
1840 | (a == ACTION_HALT || | |
1841 | a == ACTION_POWEROFF || | |
1842 | a == ACTION_REBOOT || | |
1843 | a == ACTION_KEXEC || | |
1844 | a == ACTION_EXIT)) | |
1845 | return daemon_reload(bus, args); | |
1846 | ||
1847 | /* first try logind, to allow authentication with polkit */ | |
1848 | if (geteuid() != 0 && | |
1849 | (a == ACTION_POWEROFF || | |
1850 | a == ACTION_REBOOT || | |
1851 | a == ACTION_SUSPEND || | |
1852 | a == ACTION_HIBERNATE)) { | |
1853 | r = reboot_with_logind(bus, a); | |
1854 | if (r >= 0) | |
1855 | return r; | |
1856 | } | |
1857 | ||
1858 | r = start_unit(bus, args); | |
1859 | if (r >= 0) | |
1860 | warn_wall(a); | |
1861 | ||
1862 | return r; | |
1863 | } | |
1864 | ||
1865 | static int check_unit(DBusConnection *bus, char **args) { | |
1866 | DBusMessage *m = NULL, *reply = NULL; | |
1867 | const char | |
1868 | *interface = "org.freedesktop.systemd1.Unit", | |
1869 | *property = "ActiveState"; | |
1870 | int r = 3; /* According to LSB: "program is not running" */ | |
1871 | DBusError error; | |
1872 | char **name; | |
1873 | ||
1874 | assert(bus); | |
1875 | assert(args); | |
1876 | ||
1877 | dbus_error_init(&error); | |
1878 | ||
1879 | STRV_FOREACH(name, args+1) { | |
1880 | const char *path = NULL; | |
1881 | const char *state; | |
1882 | DBusMessageIter iter, sub; | |
1883 | ||
1884 | if (!(m = dbus_message_new_method_call( | |
1885 | "org.freedesktop.systemd1", | |
1886 | "/org/freedesktop/systemd1", | |
1887 | "org.freedesktop.systemd1.Manager", | |
1888 | "GetUnit"))) { | |
1889 | log_error("Could not allocate message."); | |
1890 | r = -ENOMEM; | |
1891 | goto finish; | |
1892 | } | |
1893 | ||
1894 | if (!dbus_message_append_args(m, | |
1895 | DBUS_TYPE_STRING, name, | |
1896 | DBUS_TYPE_INVALID)) { | |
1897 | log_error("Could not append arguments to message."); | |
1898 | r = -ENOMEM; | |
1899 | goto finish; | |
1900 | } | |
1901 | ||
1902 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1903 | ||
1904 | /* Hmm, cannot figure out anything about this unit... */ | |
1905 | if (!arg_quiet) | |
1906 | puts("unknown"); | |
1907 | ||
1908 | dbus_error_free(&error); | |
1909 | dbus_message_unref(m); | |
1910 | m = NULL; | |
1911 | continue; | |
1912 | } | |
1913 | ||
1914 | if (!dbus_message_get_args(reply, &error, | |
1915 | DBUS_TYPE_OBJECT_PATH, &path, | |
1916 | DBUS_TYPE_INVALID)) { | |
1917 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
1918 | r = -EIO; | |
1919 | goto finish; | |
1920 | } | |
1921 | ||
1922 | dbus_message_unref(m); | |
1923 | if (!(m = dbus_message_new_method_call( | |
1924 | "org.freedesktop.systemd1", | |
1925 | path, | |
1926 | "org.freedesktop.DBus.Properties", | |
1927 | "Get"))) { | |
1928 | log_error("Could not allocate message."); | |
1929 | r = -ENOMEM; | |
1930 | goto finish; | |
1931 | } | |
1932 | ||
1933 | if (!dbus_message_append_args(m, | |
1934 | DBUS_TYPE_STRING, &interface, | |
1935 | DBUS_TYPE_STRING, &property, | |
1936 | DBUS_TYPE_INVALID)) { | |
1937 | log_error("Could not append arguments to message."); | |
1938 | r = -ENOMEM; | |
1939 | goto finish; | |
1940 | } | |
1941 | ||
1942 | dbus_message_unref(reply); | |
1943 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1944 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1945 | r = -EIO; | |
1946 | goto finish; | |
1947 | } | |
1948 | ||
1949 | if (!dbus_message_iter_init(reply, &iter) || | |
1950 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
1951 | log_error("Failed to parse reply."); | |
1952 | r = -EIO; | |
1953 | goto finish; | |
1954 | } | |
1955 | ||
1956 | dbus_message_iter_recurse(&iter, &sub); | |
1957 | ||
1958 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
1959 | log_error("Failed to parse reply."); | |
1960 | r = -EIO; | |
1961 | goto finish; | |
1962 | } | |
1963 | ||
1964 | dbus_message_iter_get_basic(&sub, &state); | |
1965 | ||
1966 | if (!arg_quiet) | |
1967 | puts(state); | |
1968 | ||
1969 | if (streq(state, "active") || streq(state, "reloading")) | |
1970 | r = 0; | |
1971 | ||
1972 | dbus_message_unref(m); | |
1973 | dbus_message_unref(reply); | |
1974 | m = reply = NULL; | |
1975 | } | |
1976 | ||
1977 | finish: | |
1978 | if (m) | |
1979 | dbus_message_unref(m); | |
1980 | ||
1981 | if (reply) | |
1982 | dbus_message_unref(reply); | |
1983 | ||
1984 | dbus_error_free(&error); | |
1985 | ||
1986 | return r; | |
1987 | } | |
1988 | ||
1989 | static int kill_unit(DBusConnection *bus, char **args) { | |
1990 | DBusMessage *m = NULL; | |
1991 | int r = 0; | |
1992 | DBusError error; | |
1993 | char **name; | |
1994 | ||
1995 | assert(bus); | |
1996 | assert(args); | |
1997 | ||
1998 | dbus_error_init(&error); | |
1999 | ||
2000 | if (!arg_kill_who) | |
2001 | arg_kill_who = "all"; | |
2002 | ||
2003 | if (!arg_kill_mode) | |
2004 | arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process"; | |
2005 | ||
2006 | STRV_FOREACH(name, args+1) { | |
2007 | DBusMessage *reply; | |
2008 | ||
2009 | if (!(m = dbus_message_new_method_call( | |
2010 | "org.freedesktop.systemd1", | |
2011 | "/org/freedesktop/systemd1", | |
2012 | "org.freedesktop.systemd1.Manager", | |
2013 | "KillUnit"))) { | |
2014 | log_error("Could not allocate message."); | |
2015 | r = -ENOMEM; | |
2016 | goto finish; | |
2017 | } | |
2018 | ||
2019 | if (!dbus_message_append_args(m, | |
2020 | DBUS_TYPE_STRING, name, | |
2021 | DBUS_TYPE_STRING, &arg_kill_who, | |
2022 | DBUS_TYPE_STRING, &arg_kill_mode, | |
2023 | DBUS_TYPE_INT32, &arg_signal, | |
2024 | DBUS_TYPE_INVALID)) { | |
2025 | log_error("Could not append arguments to message."); | |
2026 | r = -ENOMEM; | |
2027 | goto finish; | |
2028 | } | |
2029 | ||
2030 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2031 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2032 | dbus_error_free(&error); | |
2033 | r = -EIO; | |
2034 | } | |
2035 | ||
2036 | dbus_message_unref(m); | |
2037 | ||
2038 | if (reply) | |
2039 | dbus_message_unref(reply); | |
2040 | m = reply = NULL; | |
2041 | } | |
2042 | ||
2043 | finish: | |
2044 | if (m) | |
2045 | dbus_message_unref(m); | |
2046 | ||
2047 | dbus_error_free(&error); | |
2048 | ||
2049 | return r; | |
2050 | } | |
2051 | ||
2052 | typedef struct ExecStatusInfo { | |
2053 | char *name; | |
2054 | ||
2055 | char *path; | |
2056 | char **argv; | |
2057 | ||
2058 | bool ignore; | |
2059 | ||
2060 | usec_t start_timestamp; | |
2061 | usec_t exit_timestamp; | |
2062 | pid_t pid; | |
2063 | int code; | |
2064 | int status; | |
2065 | ||
2066 | LIST_FIELDS(struct ExecStatusInfo, exec); | |
2067 | } ExecStatusInfo; | |
2068 | ||
2069 | static void exec_status_info_free(ExecStatusInfo *i) { | |
2070 | assert(i); | |
2071 | ||
2072 | free(i->name); | |
2073 | free(i->path); | |
2074 | strv_free(i->argv); | |
2075 | free(i); | |
2076 | } | |
2077 | ||
2078 | static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) { | |
2079 | uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic; | |
2080 | DBusMessageIter sub2, sub3; | |
2081 | const char*path; | |
2082 | unsigned n; | |
2083 | uint32_t pid; | |
2084 | int32_t code, status; | |
2085 | dbus_bool_t ignore; | |
2086 | ||
2087 | assert(i); | |
2088 | assert(i); | |
2089 | ||
2090 | if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT) | |
2091 | return -EIO; | |
2092 | ||
2093 | dbus_message_iter_recurse(sub, &sub2); | |
2094 | ||
2095 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0) | |
2096 | return -EIO; | |
2097 | ||
2098 | if (!(i->path = strdup(path))) | |
2099 | return -ENOMEM; | |
2100 | ||
2101 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY || | |
2102 | dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING) | |
2103 | return -EIO; | |
2104 | ||
2105 | n = 0; | |
2106 | dbus_message_iter_recurse(&sub2, &sub3); | |
2107 | while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { | |
2108 | assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); | |
2109 | dbus_message_iter_next(&sub3); | |
2110 | n++; | |
2111 | } | |
2112 | ||
2113 | ||
2114 | if (!(i->argv = new0(char*, n+1))) | |
2115 | return -ENOMEM; | |
2116 | ||
2117 | n = 0; | |
2118 | dbus_message_iter_recurse(&sub2, &sub3); | |
2119 | while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { | |
2120 | const char *s; | |
2121 | ||
2122 | assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); | |
2123 | dbus_message_iter_get_basic(&sub3, &s); | |
2124 | dbus_message_iter_next(&sub3); | |
2125 | ||
2126 | if (!(i->argv[n++] = strdup(s))) | |
2127 | return -ENOMEM; | |
2128 | } | |
2129 | ||
2130 | if (!dbus_message_iter_next(&sub2) || | |
2131 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 || | |
2132 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 || | |
2133 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 || | |
2134 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 || | |
2135 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 || | |
2136 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 || | |
2137 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 || | |
2138 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0) | |
2139 | return -EIO; | |
2140 | ||
2141 | i->ignore = ignore; | |
2142 | i->start_timestamp = (usec_t) start_timestamp; | |
2143 | i->exit_timestamp = (usec_t) exit_timestamp; | |
2144 | i->pid = (pid_t) pid; | |
2145 | i->code = code; | |
2146 | i->status = status; | |
2147 | ||
2148 | return 0; | |
2149 | } | |
2150 | ||
2151 | typedef struct UnitStatusInfo { | |
2152 | const char *id; | |
2153 | const char *load_state; | |
2154 | const char *active_state; | |
2155 | const char *sub_state; | |
2156 | const char *unit_file_state; | |
2157 | ||
2158 | const char *description; | |
2159 | const char *following; | |
2160 | ||
2161 | const char *path; | |
2162 | const char *default_control_group; | |
2163 | ||
2164 | const char *load_error; | |
2165 | const char *result; | |
2166 | ||
2167 | usec_t inactive_exit_timestamp; | |
2168 | usec_t inactive_exit_timestamp_monotonic; | |
2169 | usec_t active_enter_timestamp; | |
2170 | usec_t active_exit_timestamp; | |
2171 | usec_t inactive_enter_timestamp; | |
2172 | ||
2173 | bool need_daemon_reload; | |
2174 | ||
2175 | /* Service */ | |
2176 | pid_t main_pid; | |
2177 | pid_t control_pid; | |
2178 | const char *status_text; | |
2179 | bool running:1; | |
2180 | #ifdef HAVE_SYSV_COMPAT | |
2181 | bool is_sysv:1; | |
2182 | #endif | |
2183 | ||
2184 | usec_t start_timestamp; | |
2185 | usec_t exit_timestamp; | |
2186 | ||
2187 | int exit_code, exit_status; | |
2188 | ||
2189 | usec_t condition_timestamp; | |
2190 | bool condition_result; | |
2191 | ||
2192 | /* Socket */ | |
2193 | unsigned n_accepted; | |
2194 | unsigned n_connections; | |
2195 | bool accept; | |
2196 | ||
2197 | /* Device */ | |
2198 | const char *sysfs_path; | |
2199 | ||
2200 | /* Mount, Automount */ | |
2201 | const char *where; | |
2202 | ||
2203 | /* Swap */ | |
2204 | const char *what; | |
2205 | ||
2206 | LIST_HEAD(ExecStatusInfo, exec); | |
2207 | } UnitStatusInfo; | |
2208 | ||
2209 | static void print_status_info(UnitStatusInfo *i) { | |
2210 | ExecStatusInfo *p; | |
2211 | const char *on, *off, *ss; | |
2212 | usec_t timestamp; | |
2213 | char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1; | |
2214 | char since2[FORMAT_TIMESTAMP_MAX], *s2; | |
2215 | ||
2216 | assert(i); | |
2217 | ||
2218 | /* This shows pretty information about a unit. See | |
2219 | * print_property() for a low-level property printer */ | |
2220 | ||
2221 | printf("%s", strna(i->id)); | |
2222 | ||
2223 | if (i->description && !streq_ptr(i->id, i->description)) | |
2224 | printf(" - %s", i->description); | |
2225 | ||
2226 | printf("\n"); | |
2227 | ||
2228 | if (i->following) | |
2229 | printf("\t Follow: unit currently follows state of %s\n", i->following); | |
2230 | ||
2231 | if (streq_ptr(i->load_state, "error")) { | |
2232 | on = ansi_highlight_red(true); | |
2233 | off = ansi_highlight_red(false); | |
2234 | } else | |
2235 | on = off = ""; | |
2236 | ||
2237 | if (i->load_error) | |
2238 | printf("\t Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error); | |
2239 | else if (i->path && i->unit_file_state) | |
2240 | printf("\t Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, i->path, i->unit_file_state); | |
2241 | else if (i->path) | |
2242 | printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path); | |
2243 | else | |
2244 | printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off); | |
2245 | ||
2246 | ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state; | |
2247 | ||
2248 | if (streq_ptr(i->active_state, "failed")) { | |
2249 | on = ansi_highlight_red(true); | |
2250 | off = ansi_highlight_red(false); | |
2251 | } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) { | |
2252 | on = ansi_highlight_green(true); | |
2253 | off = ansi_highlight_green(false); | |
2254 | } else | |
2255 | on = off = ""; | |
2256 | ||
2257 | if (ss) | |
2258 | printf("\t Active: %s%s (%s)%s", | |
2259 | on, | |
2260 | strna(i->active_state), | |
2261 | ss, | |
2262 | off); | |
2263 | else | |
2264 | printf("\t Active: %s%s%s", | |
2265 | on, | |
2266 | strna(i->active_state), | |
2267 | off); | |
2268 | ||
2269 | if (!isempty(i->result) && !streq(i->result, "success")) | |
2270 | printf(" (Result: %s)", i->result); | |
2271 | ||
2272 | timestamp = (streq_ptr(i->active_state, "active") || | |
2273 | streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp : | |
2274 | (streq_ptr(i->active_state, "inactive") || | |
2275 | streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp : | |
2276 | streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp : | |
2277 | i->active_exit_timestamp; | |
2278 | ||
2279 | s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp); | |
2280 | s2 = format_timestamp(since2, sizeof(since2), timestamp); | |
2281 | ||
2282 | if (s1) | |
2283 | printf(" since %s; %s\n", s2, s1); | |
2284 | else if (s2) | |
2285 | printf(" since %s\n", s2); | |
2286 | else | |
2287 | printf("\n"); | |
2288 | ||
2289 | if (!i->condition_result && i->condition_timestamp > 0) { | |
2290 | s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp); | |
2291 | s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp); | |
2292 | ||
2293 | if (s1) | |
2294 | printf("\t start condition failed at %s; %s\n", s2, s1); | |
2295 | else if (s2) | |
2296 | printf("\t start condition failed at %s\n", s2); | |
2297 | } | |
2298 | ||
2299 | if (i->sysfs_path) | |
2300 | printf("\t Device: %s\n", i->sysfs_path); | |
2301 | if (i->where) | |
2302 | printf("\t Where: %s\n", i->where); | |
2303 | if (i->what) | |
2304 | printf("\t What: %s\n", i->what); | |
2305 | ||
2306 | if (i->accept) | |
2307 | printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections); | |
2308 | ||
2309 | LIST_FOREACH(exec, p, i->exec) { | |
2310 | char *t; | |
2311 | bool good; | |
2312 | ||
2313 | /* Only show exited processes here */ | |
2314 | if (p->code == 0) | |
2315 | continue; | |
2316 | ||
2317 | t = strv_join(p->argv, " "); | |
2318 | printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t)); | |
2319 | free(t); | |
2320 | ||
2321 | #ifdef HAVE_SYSV_COMPAT | |
2322 | if (i->is_sysv) | |
2323 | good = is_clean_exit_lsb(p->code, p->status); | |
2324 | else | |
2325 | #endif | |
2326 | good = is_clean_exit(p->code, p->status); | |
2327 | ||
2328 | if (!good) { | |
2329 | on = ansi_highlight_red(true); | |
2330 | off = ansi_highlight_red(false); | |
2331 | } else | |
2332 | on = off = ""; | |
2333 | ||
2334 | printf("%s(code=%s, ", on, sigchld_code_to_string(p->code)); | |
2335 | ||
2336 | if (p->code == CLD_EXITED) { | |
2337 | const char *c; | |
2338 | ||
2339 | printf("status=%i", p->status); | |
2340 | ||
2341 | #ifdef HAVE_SYSV_COMPAT | |
2342 | if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD))) | |
2343 | #else | |
2344 | if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD))) | |
2345 | #endif | |
2346 | printf("/%s", c); | |
2347 | ||
2348 | } else | |
2349 | printf("signal=%s", signal_to_string(p->status)); | |
2350 | ||
2351 | printf(")%s\n", off); | |
2352 | ||
2353 | if (i->main_pid == p->pid && | |
2354 | i->start_timestamp == p->start_timestamp && | |
2355 | i->exit_timestamp == p->start_timestamp) | |
2356 | /* Let's not show this twice */ | |
2357 | i->main_pid = 0; | |
2358 | ||
2359 | if (p->pid == i->control_pid) | |
2360 | i->control_pid = 0; | |
2361 | } | |
2362 | ||
2363 | if (i->main_pid > 0 || i->control_pid > 0) { | |
2364 | printf("\t"); | |
2365 | ||
2366 | if (i->main_pid > 0) { | |
2367 | printf("Main PID: %u", (unsigned) i->main_pid); | |
2368 | ||
2369 | if (i->running) { | |
2370 | char *t = NULL; | |
2371 | get_process_comm(i->main_pid, &t); | |
2372 | if (t) { | |
2373 | printf(" (%s)", t); | |
2374 | free(t); | |
2375 | } | |
2376 | } else if (i->exit_code > 0) { | |
2377 | printf(" (code=%s, ", sigchld_code_to_string(i->exit_code)); | |
2378 | ||
2379 | if (i->exit_code == CLD_EXITED) { | |
2380 | const char *c; | |
2381 | ||
2382 | printf("status=%i", i->exit_status); | |
2383 | ||
2384 | #ifdef HAVE_SYSV_COMPAT | |
2385 | if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD))) | |
2386 | #else | |
2387 | if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD))) | |
2388 | #endif | |
2389 | printf("/%s", c); | |
2390 | ||
2391 | } else | |
2392 | printf("signal=%s", signal_to_string(i->exit_status)); | |
2393 | printf(")"); | |
2394 | } | |
2395 | } | |
2396 | ||
2397 | if (i->main_pid > 0 && i->control_pid > 0) | |
2398 | printf(";"); | |
2399 | ||
2400 | if (i->control_pid > 0) { | |
2401 | char *t = NULL; | |
2402 | ||
2403 | printf(" Control: %u", (unsigned) i->control_pid); | |
2404 | ||
2405 | get_process_comm(i->control_pid, &t); | |
2406 | if (t) { | |
2407 | printf(" (%s)", t); | |
2408 | free(t); | |
2409 | } | |
2410 | } | |
2411 | ||
2412 | printf("\n"); | |
2413 | } | |
2414 | ||
2415 | if (i->status_text) | |
2416 | printf("\t Status: \"%s\"\n", i->status_text); | |
2417 | ||
2418 | if (i->default_control_group) { | |
2419 | unsigned c; | |
2420 | ||
2421 | printf("\t CGroup: %s\n", i->default_control_group); | |
2422 | ||
2423 | if (arg_transport != TRANSPORT_SSH) { | |
2424 | unsigned k = 0; | |
2425 | pid_t extra[2]; | |
2426 | ||
2427 | c = columns(); | |
2428 | if (c > 18) | |
2429 | c -= 18; | |
2430 | else | |
2431 | c = 0; | |
2432 | ||
2433 | if (i->main_pid > 0) | |
2434 | extra[k++] = i->main_pid; | |
2435 | ||
2436 | if (i->control_pid > 0) | |
2437 | extra[k++] = i->control_pid; | |
2438 | ||
2439 | show_cgroup_and_extra_by_spec(i->default_control_group, "\t\t ", c, false, arg_all, extra, k); | |
2440 | } | |
2441 | } | |
2442 | ||
2443 | if (i->id && arg_transport != TRANSPORT_SSH) { | |
2444 | printf("\n"); | |
2445 | show_journal_by_unit(i->id, arg_output, 0, i->inactive_exit_timestamp_monotonic, arg_lines, arg_all, arg_follow); | |
2446 | } | |
2447 | ||
2448 | if (i->need_daemon_reload) | |
2449 | printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n", | |
2450 | ansi_highlight_red(true), | |
2451 | ansi_highlight_red(false), | |
2452 | arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user"); | |
2453 | } | |
2454 | ||
2455 | static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) { | |
2456 | ||
2457 | assert(name); | |
2458 | assert(iter); | |
2459 | assert(i); | |
2460 | ||
2461 | switch (dbus_message_iter_get_arg_type(iter)) { | |
2462 | ||
2463 | case DBUS_TYPE_STRING: { | |
2464 | const char *s; | |
2465 | ||
2466 | dbus_message_iter_get_basic(iter, &s); | |
2467 | ||
2468 | if (!isempty(s)) { | |
2469 | if (streq(name, "Id")) | |
2470 | i->id = s; | |
2471 | else if (streq(name, "LoadState")) | |
2472 | i->load_state = s; | |
2473 | else if (streq(name, "ActiveState")) | |
2474 | i->active_state = s; | |
2475 | else if (streq(name, "SubState")) | |
2476 | i->sub_state = s; | |
2477 | else if (streq(name, "Description")) | |
2478 | i->description = s; | |
2479 | else if (streq(name, "FragmentPath")) | |
2480 | i->path = s; | |
2481 | #ifdef HAVE_SYSV_COMPAT | |
2482 | else if (streq(name, "SysVPath")) { | |
2483 | i->is_sysv = true; | |
2484 | i->path = s; | |
2485 | } | |
2486 | #endif | |
2487 | else if (streq(name, "DefaultControlGroup")) | |
2488 | i->default_control_group = s; | |
2489 | else if (streq(name, "StatusText")) | |
2490 | i->status_text = s; | |
2491 | else if (streq(name, "SysFSPath")) | |
2492 | i->sysfs_path = s; | |
2493 | else if (streq(name, "Where")) | |
2494 | i->where = s; | |
2495 | else if (streq(name, "What")) | |
2496 | i->what = s; | |
2497 | else if (streq(name, "Following")) | |
2498 | i->following = s; | |
2499 | else if (streq(name, "UnitFileState")) | |
2500 | i->unit_file_state = s; | |
2501 | else if (streq(name, "Result")) | |
2502 | i->result = s; | |
2503 | } | |
2504 | ||
2505 | break; | |
2506 | } | |
2507 | ||
2508 | case DBUS_TYPE_BOOLEAN: { | |
2509 | dbus_bool_t b; | |
2510 | ||
2511 | dbus_message_iter_get_basic(iter, &b); | |
2512 | ||
2513 | if (streq(name, "Accept")) | |
2514 | i->accept = b; | |
2515 | else if (streq(name, "NeedDaemonReload")) | |
2516 | i->need_daemon_reload = b; | |
2517 | else if (streq(name, "ConditionResult")) | |
2518 | i->condition_result = b; | |
2519 | ||
2520 | break; | |
2521 | } | |
2522 | ||
2523 | case DBUS_TYPE_UINT32: { | |
2524 | uint32_t u; | |
2525 | ||
2526 | dbus_message_iter_get_basic(iter, &u); | |
2527 | ||
2528 | if (streq(name, "MainPID")) { | |
2529 | if (u > 0) { | |
2530 | i->main_pid = (pid_t) u; | |
2531 | i->running = true; | |
2532 | } | |
2533 | } else if (streq(name, "ControlPID")) | |
2534 | i->control_pid = (pid_t) u; | |
2535 | else if (streq(name, "ExecMainPID")) { | |
2536 | if (u > 0) | |
2537 | i->main_pid = (pid_t) u; | |
2538 | } else if (streq(name, "NAccepted")) | |
2539 | i->n_accepted = u; | |
2540 | else if (streq(name, "NConnections")) | |
2541 | i->n_connections = u; | |
2542 | ||
2543 | break; | |
2544 | } | |
2545 | ||
2546 | case DBUS_TYPE_INT32: { | |
2547 | int32_t j; | |
2548 | ||
2549 | dbus_message_iter_get_basic(iter, &j); | |
2550 | ||
2551 | if (streq(name, "ExecMainCode")) | |
2552 | i->exit_code = (int) j; | |
2553 | else if (streq(name, "ExecMainStatus")) | |
2554 | i->exit_status = (int) j; | |
2555 | ||
2556 | break; | |
2557 | } | |
2558 | ||
2559 | case DBUS_TYPE_UINT64: { | |
2560 | uint64_t u; | |
2561 | ||
2562 | dbus_message_iter_get_basic(iter, &u); | |
2563 | ||
2564 | if (streq(name, "ExecMainStartTimestamp")) | |
2565 | i->start_timestamp = (usec_t) u; | |
2566 | else if (streq(name, "ExecMainExitTimestamp")) | |
2567 | i->exit_timestamp = (usec_t) u; | |
2568 | else if (streq(name, "ActiveEnterTimestamp")) | |
2569 | i->active_enter_timestamp = (usec_t) u; | |
2570 | else if (streq(name, "InactiveEnterTimestamp")) | |
2571 | i->inactive_enter_timestamp = (usec_t) u; | |
2572 | else if (streq(name, "InactiveExitTimestamp")) | |
2573 | i->inactive_exit_timestamp = (usec_t) u; | |
2574 | else if (streq(name, "InactiveExitTimestampMonotonic")) | |
2575 | i->inactive_exit_timestamp_monotonic = (usec_t) u; | |
2576 | else if (streq(name, "ActiveExitTimestamp")) | |
2577 | i->active_exit_timestamp = (usec_t) u; | |
2578 | else if (streq(name, "ConditionTimestamp")) | |
2579 | i->condition_timestamp = (usec_t) u; | |
2580 | ||
2581 | break; | |
2582 | } | |
2583 | ||
2584 | case DBUS_TYPE_ARRAY: { | |
2585 | ||
2586 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && | |
2587 | startswith(name, "Exec")) { | |
2588 | DBusMessageIter sub; | |
2589 | ||
2590 | dbus_message_iter_recurse(iter, &sub); | |
2591 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2592 | ExecStatusInfo *info; | |
2593 | int r; | |
2594 | ||
2595 | if (!(info = new0(ExecStatusInfo, 1))) | |
2596 | return -ENOMEM; | |
2597 | ||
2598 | if (!(info->name = strdup(name))) { | |
2599 | free(info); | |
2600 | return -ENOMEM; | |
2601 | } | |
2602 | ||
2603 | if ((r = exec_status_info_deserialize(&sub, info)) < 0) { | |
2604 | free(info); | |
2605 | return r; | |
2606 | } | |
2607 | ||
2608 | LIST_PREPEND(ExecStatusInfo, exec, i->exec, info); | |
2609 | ||
2610 | dbus_message_iter_next(&sub); | |
2611 | } | |
2612 | } | |
2613 | ||
2614 | break; | |
2615 | } | |
2616 | ||
2617 | case DBUS_TYPE_STRUCT: { | |
2618 | ||
2619 | if (streq(name, "LoadError")) { | |
2620 | DBusMessageIter sub; | |
2621 | const char *n, *message; | |
2622 | int r; | |
2623 | ||
2624 | dbus_message_iter_recurse(iter, &sub); | |
2625 | ||
2626 | r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true); | |
2627 | if (r < 0) | |
2628 | return r; | |
2629 | ||
2630 | r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false); | |
2631 | if (r < 0) | |
2632 | return r; | |
2633 | ||
2634 | if (!isempty(message)) | |
2635 | i->load_error = message; | |
2636 | } | |
2637 | ||
2638 | break; | |
2639 | } | |
2640 | } | |
2641 | ||
2642 | return 0; | |
2643 | } | |
2644 | ||
2645 | static int print_property(const char *name, DBusMessageIter *iter) { | |
2646 | assert(name); | |
2647 | assert(iter); | |
2648 | ||
2649 | /* This is a low-level property printer, see | |
2650 | * print_status_info() for the nicer output */ | |
2651 | ||
2652 | if (arg_property && !strv_find(arg_property, name)) | |
2653 | return 0; | |
2654 | ||
2655 | switch (dbus_message_iter_get_arg_type(iter)) { | |
2656 | ||
2657 | case DBUS_TYPE_STRUCT: { | |
2658 | DBusMessageIter sub; | |
2659 | dbus_message_iter_recurse(iter, &sub); | |
2660 | ||
2661 | if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) { | |
2662 | uint32_t u; | |
2663 | ||
2664 | dbus_message_iter_get_basic(&sub, &u); | |
2665 | ||
2666 | if (u) | |
2667 | printf("%s=%u\n", name, (unsigned) u); | |
2668 | else if (arg_all) | |
2669 | printf("%s=\n", name); | |
2670 | ||
2671 | return 0; | |
2672 | } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) { | |
2673 | const char *s; | |
2674 | ||
2675 | dbus_message_iter_get_basic(&sub, &s); | |
2676 | ||
2677 | if (arg_all || s[0]) | |
2678 | printf("%s=%s\n", name, s); | |
2679 | ||
2680 | return 0; | |
2681 | } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) { | |
2682 | const char *a = NULL, *b = NULL; | |
2683 | ||
2684 | if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0) | |
2685 | bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false); | |
2686 | ||
2687 | if (arg_all || !isempty(a) || !isempty(b)) | |
2688 | printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b)); | |
2689 | ||
2690 | return 0; | |
2691 | } | |
2692 | ||
2693 | break; | |
2694 | } | |
2695 | ||
2696 | case DBUS_TYPE_ARRAY: | |
2697 | ||
2698 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) { | |
2699 | DBusMessageIter sub, sub2; | |
2700 | ||
2701 | dbus_message_iter_recurse(iter, &sub); | |
2702 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2703 | const char *path; | |
2704 | dbus_bool_t ignore; | |
2705 | ||
2706 | dbus_message_iter_recurse(&sub, &sub2); | |
2707 | ||
2708 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 && | |
2709 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0) | |
2710 | printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore)); | |
2711 | ||
2712 | dbus_message_iter_next(&sub); | |
2713 | } | |
2714 | ||
2715 | return 0; | |
2716 | ||
2717 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) { | |
2718 | DBusMessageIter sub, sub2; | |
2719 | ||
2720 | dbus_message_iter_recurse(iter, &sub); | |
2721 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2722 | const char *type, *path; | |
2723 | ||
2724 | dbus_message_iter_recurse(&sub, &sub2); | |
2725 | ||
2726 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 && | |
2727 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) | |
2728 | printf("%s=%s\n", type, path); | |
2729 | ||
2730 | dbus_message_iter_next(&sub); | |
2731 | } | |
2732 | ||
2733 | return 0; | |
2734 | ||
2735 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) { | |
2736 | DBusMessageIter sub, sub2; | |
2737 | ||
2738 | dbus_message_iter_recurse(iter, &sub); | |
2739 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2740 | const char *base; | |
2741 | uint64_t value, next_elapse; | |
2742 | ||
2743 | dbus_message_iter_recurse(&sub, &sub2); | |
2744 | ||
2745 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 && | |
2746 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 && | |
2747 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) { | |
2748 | char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX]; | |
2749 | ||
2750 | printf("%s={ value=%s ; next_elapse=%s }\n", | |
2751 | base, | |
2752 | format_timespan(timespan1, sizeof(timespan1), value), | |
2753 | format_timespan(timespan2, sizeof(timespan2), next_elapse)); | |
2754 | } | |
2755 | ||
2756 | dbus_message_iter_next(&sub); | |
2757 | } | |
2758 | ||
2759 | return 0; | |
2760 | ||
2761 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) { | |
2762 | DBusMessageIter sub, sub2; | |
2763 | ||
2764 | dbus_message_iter_recurse(iter, &sub); | |
2765 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2766 | const char *controller, *attr, *value; | |
2767 | ||
2768 | dbus_message_iter_recurse(&sub, &sub2); | |
2769 | ||
2770 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 && | |
2771 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 && | |
2772 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) { | |
2773 | ||
2774 | printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n", | |
2775 | controller, | |
2776 | attr, | |
2777 | value); | |
2778 | } | |
2779 | ||
2780 | dbus_message_iter_next(&sub); | |
2781 | } | |
2782 | ||
2783 | return 0; | |
2784 | ||
2785 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) { | |
2786 | DBusMessageIter sub; | |
2787 | ||
2788 | dbus_message_iter_recurse(iter, &sub); | |
2789 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2790 | ExecStatusInfo info; | |
2791 | ||
2792 | zero(info); | |
2793 | if (exec_status_info_deserialize(&sub, &info) >= 0) { | |
2794 | char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; | |
2795 | char *t; | |
2796 | ||
2797 | t = strv_join(info.argv, " "); | |
2798 | ||
2799 | printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n", | |
2800 | name, | |
2801 | strna(info.path), | |
2802 | strna(t), | |
2803 | yes_no(info.ignore), | |
2804 | strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), | |
2805 | strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), | |
2806 | (unsigned) info. pid, | |
2807 | sigchld_code_to_string(info.code), | |
2808 | info.status, | |
2809 | info.code == CLD_EXITED ? "" : "/", | |
2810 | strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); | |
2811 | ||
2812 | free(t); | |
2813 | } | |
2814 | ||
2815 | free(info.path); | |
2816 | strv_free(info.argv); | |
2817 | ||
2818 | dbus_message_iter_next(&sub); | |
2819 | } | |
2820 | ||
2821 | return 0; | |
2822 | } | |
2823 | ||
2824 | break; | |
2825 | } | |
2826 | ||
2827 | if (generic_print_property(name, iter, arg_all) > 0) | |
2828 | return 0; | |
2829 | ||
2830 | if (arg_all) | |
2831 | printf("%s=[unprintable]\n", name); | |
2832 | ||
2833 | return 0; | |
2834 | } | |
2835 | ||
2836 | static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) { | |
2837 | DBusMessage *m = NULL, *reply = NULL; | |
2838 | const char *interface = ""; | |
2839 | int r; | |
2840 | DBusError error; | |
2841 | DBusMessageIter iter, sub, sub2, sub3; | |
2842 | UnitStatusInfo info; | |
2843 | ExecStatusInfo *p; | |
2844 | ||
2845 | assert(bus); | |
2846 | assert(path); | |
2847 | assert(new_line); | |
2848 | ||
2849 | zero(info); | |
2850 | dbus_error_init(&error); | |
2851 | ||
2852 | if (!(m = dbus_message_new_method_call( | |
2853 | "org.freedesktop.systemd1", | |
2854 | path, | |
2855 | "org.freedesktop.DBus.Properties", | |
2856 | "GetAll"))) { | |
2857 | log_error("Could not allocate message."); | |
2858 | r = -ENOMEM; | |
2859 | goto finish; | |
2860 | } | |
2861 | ||
2862 | if (!dbus_message_append_args(m, | |
2863 | DBUS_TYPE_STRING, &interface, | |
2864 | DBUS_TYPE_INVALID)) { | |
2865 | log_error("Could not append arguments to message."); | |
2866 | r = -ENOMEM; | |
2867 | goto finish; | |
2868 | } | |
2869 | ||
2870 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2871 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2872 | r = -EIO; | |
2873 | goto finish; | |
2874 | } | |
2875 | ||
2876 | if (!dbus_message_iter_init(reply, &iter) || | |
2877 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
2878 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { | |
2879 | log_error("Failed to parse reply."); | |
2880 | r = -EIO; | |
2881 | goto finish; | |
2882 | } | |
2883 | ||
2884 | dbus_message_iter_recurse(&iter, &sub); | |
2885 | ||
2886 | if (*new_line) | |
2887 | printf("\n"); | |
2888 | ||
2889 | *new_line = true; | |
2890 | ||
2891 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2892 | const char *name; | |
2893 | ||
2894 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { | |
2895 | log_error("Failed to parse reply."); | |
2896 | r = -EIO; | |
2897 | goto finish; | |
2898 | } | |
2899 | ||
2900 | dbus_message_iter_recurse(&sub, &sub2); | |
2901 | ||
2902 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) { | |
2903 | log_error("Failed to parse reply."); | |
2904 | r = -EIO; | |
2905 | goto finish; | |
2906 | } | |
2907 | ||
2908 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { | |
2909 | log_error("Failed to parse reply."); | |
2910 | r = -EIO; | |
2911 | goto finish; | |
2912 | } | |
2913 | ||
2914 | dbus_message_iter_recurse(&sub2, &sub3); | |
2915 | ||
2916 | if (show_properties) | |
2917 | r = print_property(name, &sub3); | |
2918 | else | |
2919 | r = status_property(name, &sub3, &info); | |
2920 | ||
2921 | if (r < 0) { | |
2922 | log_error("Failed to parse reply."); | |
2923 | r = -EIO; | |
2924 | goto finish; | |
2925 | } | |
2926 | ||
2927 | dbus_message_iter_next(&sub); | |
2928 | } | |
2929 | ||
2930 | r = 0; | |
2931 | ||
2932 | if (!show_properties) | |
2933 | print_status_info(&info); | |
2934 | ||
2935 | if (!streq_ptr(info.active_state, "active") && | |
2936 | !streq_ptr(info.active_state, "reloading") && | |
2937 | streq(verb, "status")) | |
2938 | /* According to LSB: "program not running" */ | |
2939 | r = 3; | |
2940 | ||
2941 | while ((p = info.exec)) { | |
2942 | LIST_REMOVE(ExecStatusInfo, exec, info.exec, p); | |
2943 | exec_status_info_free(p); | |
2944 | } | |
2945 | ||
2946 | finish: | |
2947 | if (m) | |
2948 | dbus_message_unref(m); | |
2949 | ||
2950 | if (reply) | |
2951 | dbus_message_unref(reply); | |
2952 | ||
2953 | dbus_error_free(&error); | |
2954 | ||
2955 | return r; | |
2956 | } | |
2957 | ||
2958 | static int show_one_by_pid(const char *verb, DBusConnection *bus, uint32_t pid, bool *new_line) { | |
2959 | DBusMessage *m = NULL, *reply = NULL; | |
2960 | const char *path = NULL; | |
2961 | DBusError error; | |
2962 | int r; | |
2963 | ||
2964 | dbus_error_init(&error); | |
2965 | ||
2966 | m = dbus_message_new_method_call( | |
2967 | "org.freedesktop.systemd1", | |
2968 | "/org/freedesktop/systemd1", | |
2969 | "org.freedesktop.systemd1.Manager", | |
2970 | "GetUnitByPID"); | |
2971 | if (!m) { | |
2972 | log_error("Could not allocate message."); | |
2973 | r = -ENOMEM; | |
2974 | goto finish; | |
2975 | } | |
2976 | ||
2977 | if (!dbus_message_append_args(m, | |
2978 | DBUS_TYPE_UINT32, &pid, | |
2979 | DBUS_TYPE_INVALID)) { | |
2980 | log_error("Could not append arguments to message."); | |
2981 | r = -ENOMEM; | |
2982 | goto finish; | |
2983 | } | |
2984 | ||
2985 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
2986 | if (!reply) { | |
2987 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2988 | r = -EIO; | |
2989 | goto finish; | |
2990 | } | |
2991 | ||
2992 | if (!dbus_message_get_args(reply, &error, | |
2993 | DBUS_TYPE_OBJECT_PATH, &path, | |
2994 | DBUS_TYPE_INVALID)) { | |
2995 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
2996 | r = -EIO; | |
2997 | goto finish; | |
2998 | } | |
2999 | ||
3000 | r = show_one(verb, bus, path, false, new_line); | |
3001 | ||
3002 | finish: | |
3003 | if (m) | |
3004 | dbus_message_unref(m); | |
3005 | ||
3006 | if (reply) | |
3007 | dbus_message_unref(reply); | |
3008 | ||
3009 | dbus_error_free(&error); | |
3010 | ||
3011 | return r; | |
3012 | } | |
3013 | ||
3014 | static int show(DBusConnection *bus, char **args) { | |
3015 | int r, ret = 0; | |
3016 | bool show_properties, new_line = false; | |
3017 | char **name; | |
3018 | ||
3019 | assert(bus); | |
3020 | assert(args); | |
3021 | ||
3022 | show_properties = !streq(args[0], "status"); | |
3023 | ||
3024 | if (show_properties) | |
3025 | pager_open_if_enabled(); | |
3026 | ||
3027 | if (show_properties && strv_length(args) <= 1) { | |
3028 | /* If not argument is specified inspect the manager | |
3029 | * itself */ | |
3030 | ||
3031 | return show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line); | |
3032 | } | |
3033 | ||
3034 | STRV_FOREACH(name, args+1) { | |
3035 | uint32_t id; | |
3036 | ||
3037 | if (safe_atou32(*name, &id) < 0) { | |
3038 | ||
3039 | /* Interpret as unit name */ | |
3040 | ||
3041 | char *e, *p; | |
3042 | e = bus_path_escape(*name); | |
3043 | if (!e) | |
3044 | return -ENOMEM; | |
3045 | p = strappend("/org/freedesktop/systemd1/unit/", e); | |
3046 | free(e); | |
3047 | if (!p) | |
3048 | return -ENOMEM; | |
3049 | ||
3050 | r = show_one(args[0], bus, p, show_properties, &new_line); | |
3051 | free(p); | |
3052 | ||
3053 | if (r != 0) | |
3054 | ret = r; | |
3055 | ||
3056 | } else if (show_properties) { | |
3057 | ||
3058 | /* Interpret as job id */ | |
3059 | ||
3060 | char *p; | |
3061 | if (asprintf(&p, "/org/freedesktop/systemd1/job/%u", id) < 0) | |
3062 | return -ENOMEM; | |
3063 | ||
3064 | r = show_one(args[0], bus, p, show_properties, &new_line); | |
3065 | free(p); | |
3066 | ||
3067 | if (r != 0) | |
3068 | ret = r; | |
3069 | ||
3070 | } else { | |
3071 | ||
3072 | /* Interpret as PID */ | |
3073 | ||
3074 | r = show_one_by_pid(args[0], bus, id, &new_line); | |
3075 | if (r != 0) | |
3076 | ret = r; | |
3077 | } | |
3078 | } | |
3079 | ||
3080 | return ret; | |
3081 | } | |
3082 | ||
3083 | static int dump(DBusConnection *bus, char **args) { | |
3084 | DBusMessage *m = NULL, *reply = NULL; | |
3085 | DBusError error; | |
3086 | int r; | |
3087 | const char *text; | |
3088 | ||
3089 | dbus_error_init(&error); | |
3090 | ||
3091 | pager_open_if_enabled(); | |
3092 | ||
3093 | if (!(m = dbus_message_new_method_call( | |
3094 | "org.freedesktop.systemd1", | |
3095 | "/org/freedesktop/systemd1", | |
3096 | "org.freedesktop.systemd1.Manager", | |
3097 | "Dump"))) { | |
3098 | log_error("Could not allocate message."); | |
3099 | return -ENOMEM; | |
3100 | } | |
3101 | ||
3102 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3103 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3104 | r = -EIO; | |
3105 | goto finish; | |
3106 | } | |
3107 | ||
3108 | if (!dbus_message_get_args(reply, &error, | |
3109 | DBUS_TYPE_STRING, &text, | |
3110 | DBUS_TYPE_INVALID)) { | |
3111 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
3112 | r = -EIO; | |
3113 | goto finish; | |
3114 | } | |
3115 | ||
3116 | fputs(text, stdout); | |
3117 | ||
3118 | r = 0; | |
3119 | ||
3120 | finish: | |
3121 | if (m) | |
3122 | dbus_message_unref(m); | |
3123 | ||
3124 | if (reply) | |
3125 | dbus_message_unref(reply); | |
3126 | ||
3127 | dbus_error_free(&error); | |
3128 | ||
3129 | return r; | |
3130 | } | |
3131 | ||
3132 | static int snapshot(DBusConnection *bus, char **args) { | |
3133 | DBusMessage *m = NULL, *reply = NULL; | |
3134 | DBusError error; | |
3135 | int r; | |
3136 | const char *name = "", *path, *id; | |
3137 | dbus_bool_t cleanup = FALSE; | |
3138 | DBusMessageIter iter, sub; | |
3139 | const char | |
3140 | *interface = "org.freedesktop.systemd1.Unit", | |
3141 | *property = "Id"; | |
3142 | ||
3143 | dbus_error_init(&error); | |
3144 | ||
3145 | if (!(m = dbus_message_new_method_call( | |
3146 | "org.freedesktop.systemd1", | |
3147 | "/org/freedesktop/systemd1", | |
3148 | "org.freedesktop.systemd1.Manager", | |
3149 | "CreateSnapshot"))) { | |
3150 | log_error("Could not allocate message."); | |
3151 | return -ENOMEM; | |
3152 | } | |
3153 | ||
3154 | if (strv_length(args) > 1) | |
3155 | name = args[1]; | |
3156 | ||
3157 | if (!dbus_message_append_args(m, | |
3158 | DBUS_TYPE_STRING, &name, | |
3159 | DBUS_TYPE_BOOLEAN, &cleanup, | |
3160 | DBUS_TYPE_INVALID)) { | |
3161 | log_error("Could not append arguments to message."); | |
3162 | r = -ENOMEM; | |
3163 | goto finish; | |
3164 | } | |
3165 | ||
3166 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3167 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3168 | r = -EIO; | |
3169 | goto finish; | |
3170 | } | |
3171 | ||
3172 | if (!dbus_message_get_args(reply, &error, | |
3173 | DBUS_TYPE_OBJECT_PATH, &path, | |
3174 | DBUS_TYPE_INVALID)) { | |
3175 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
3176 | r = -EIO; | |
3177 | goto finish; | |
3178 | } | |
3179 | ||
3180 | dbus_message_unref(m); | |
3181 | if (!(m = dbus_message_new_method_call( | |
3182 | "org.freedesktop.systemd1", | |
3183 | path, | |
3184 | "org.freedesktop.DBus.Properties", | |
3185 | "Get"))) { | |
3186 | log_error("Could not allocate message."); | |
3187 | return -ENOMEM; | |
3188 | } | |
3189 | ||
3190 | if (!dbus_message_append_args(m, | |
3191 | DBUS_TYPE_STRING, &interface, | |
3192 | DBUS_TYPE_STRING, &property, | |
3193 | DBUS_TYPE_INVALID)) { | |
3194 | log_error("Could not append arguments to message."); | |
3195 | r = -ENOMEM; | |
3196 | goto finish; | |
3197 | } | |
3198 | ||
3199 | dbus_message_unref(reply); | |
3200 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3201 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3202 | r = -EIO; | |
3203 | goto finish; | |
3204 | } | |
3205 | ||
3206 | if (!dbus_message_iter_init(reply, &iter) || | |
3207 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
3208 | log_error("Failed to parse reply."); | |
3209 | r = -EIO; | |
3210 | goto finish; | |
3211 | } | |
3212 | ||
3213 | dbus_message_iter_recurse(&iter, &sub); | |
3214 | ||
3215 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
3216 | log_error("Failed to parse reply."); | |
3217 | r = -EIO; | |
3218 | goto finish; | |
3219 | } | |
3220 | ||
3221 | dbus_message_iter_get_basic(&sub, &id); | |
3222 | ||
3223 | if (!arg_quiet) | |
3224 | puts(id); | |
3225 | r = 0; | |
3226 | ||
3227 | finish: | |
3228 | if (m) | |
3229 | dbus_message_unref(m); | |
3230 | ||
3231 | if (reply) | |
3232 | dbus_message_unref(reply); | |
3233 | ||
3234 | dbus_error_free(&error); | |
3235 | ||
3236 | return r; | |
3237 | } | |
3238 | ||
3239 | static int delete_snapshot(DBusConnection *bus, char **args) { | |
3240 | DBusMessage *m = NULL, *reply = NULL; | |
3241 | int r; | |
3242 | DBusError error; | |
3243 | char **name; | |
3244 | ||
3245 | assert(bus); | |
3246 | assert(args); | |
3247 | ||
3248 | dbus_error_init(&error); | |
3249 | ||
3250 | STRV_FOREACH(name, args+1) { | |
3251 | const char *path = NULL; | |
3252 | ||
3253 | if (!(m = dbus_message_new_method_call( | |
3254 | "org.freedesktop.systemd1", | |
3255 | "/org/freedesktop/systemd1", | |
3256 | "org.freedesktop.systemd1.Manager", | |
3257 | "GetUnit"))) { | |
3258 | log_error("Could not allocate message."); | |
3259 | r = -ENOMEM; | |
3260 | goto finish; | |
3261 | } | |
3262 | ||
3263 | if (!dbus_message_append_args(m, | |
3264 | DBUS_TYPE_STRING, name, | |
3265 | DBUS_TYPE_INVALID)) { | |
3266 | log_error("Could not append arguments to message."); | |
3267 | r = -ENOMEM; | |
3268 | goto finish; | |
3269 | } | |
3270 | ||
3271 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3272 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3273 | r = -EIO; | |
3274 | goto finish; | |
3275 | } | |
3276 | ||
3277 | if (!dbus_message_get_args(reply, &error, | |
3278 | DBUS_TYPE_OBJECT_PATH, &path, | |
3279 | DBUS_TYPE_INVALID)) { | |
3280 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
3281 | r = -EIO; | |
3282 | goto finish; | |
3283 | } | |
3284 | ||
3285 | dbus_message_unref(m); | |
3286 | if (!(m = dbus_message_new_method_call( | |
3287 | "org.freedesktop.systemd1", | |
3288 | path, | |
3289 | "org.freedesktop.systemd1.Snapshot", | |
3290 | "Remove"))) { | |
3291 | log_error("Could not allocate message."); | |
3292 | r = -ENOMEM; | |
3293 | goto finish; | |
3294 | } | |
3295 | ||
3296 | dbus_message_unref(reply); | |
3297 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3298 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3299 | r = -EIO; | |
3300 | goto finish; | |
3301 | } | |
3302 | ||
3303 | dbus_message_unref(m); | |
3304 | dbus_message_unref(reply); | |
3305 | m = reply = NULL; | |
3306 | } | |
3307 | ||
3308 | r = 0; | |
3309 | ||
3310 | finish: | |
3311 | if (m) | |
3312 | dbus_message_unref(m); | |
3313 | ||
3314 | if (reply) | |
3315 | dbus_message_unref(reply); | |
3316 | ||
3317 | dbus_error_free(&error); | |
3318 | ||
3319 | return r; | |
3320 | } | |
3321 | ||
3322 | static int daemon_reload(DBusConnection *bus, char **args) { | |
3323 | DBusMessage *m = NULL, *reply = NULL; | |
3324 | DBusError error; | |
3325 | int r; | |
3326 | const char *method; | |
3327 | ||
3328 | dbus_error_init(&error); | |
3329 | ||
3330 | if (arg_action == ACTION_RELOAD) | |
3331 | method = "Reload"; | |
3332 | else if (arg_action == ACTION_REEXEC) | |
3333 | method = "Reexecute"; | |
3334 | else { | |
3335 | assert(arg_action == ACTION_SYSTEMCTL); | |
3336 | ||
3337 | method = | |
3338 | streq(args[0], "clear-jobs") || | |
3339 | streq(args[0], "cancel") ? "ClearJobs" : | |
3340 | streq(args[0], "daemon-reexec") ? "Reexecute" : | |
3341 | streq(args[0], "reset-failed") ? "ResetFailed" : | |
3342 | streq(args[0], "halt") ? "Halt" : | |
3343 | streq(args[0], "poweroff") ? "PowerOff" : | |
3344 | streq(args[0], "reboot") ? "Reboot" : | |
3345 | streq(args[0], "kexec") ? "KExec" : | |
3346 | streq(args[0], "exit") ? "Exit" : | |
3347 | /* "daemon-reload" */ "Reload"; | |
3348 | } | |
3349 | ||
3350 | if (!(m = dbus_message_new_method_call( | |
3351 | "org.freedesktop.systemd1", | |
3352 | "/org/freedesktop/systemd1", | |
3353 | "org.freedesktop.systemd1.Manager", | |
3354 | method))) { | |
3355 | log_error("Could not allocate message."); | |
3356 | return -ENOMEM; | |
3357 | } | |
3358 | ||
3359 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3360 | ||
3361 | if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) { | |
3362 | /* There's always a fallback possible for | |
3363 | * legacy actions. */ | |
3364 | r = -EADDRNOTAVAIL; | |
3365 | goto finish; | |
3366 | } | |
3367 | ||
3368 | if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) { | |
3369 | /* On reexecution, we expect a disconnect, not | |
3370 | * a reply */ | |
3371 | r = 0; | |
3372 | goto finish; | |
3373 | } | |
3374 | ||
3375 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3376 | r = -EIO; | |
3377 | goto finish; | |
3378 | } | |
3379 | ||
3380 | r = 0; | |
3381 | ||
3382 | finish: | |
3383 | if (m) | |
3384 | dbus_message_unref(m); | |
3385 | ||
3386 | if (reply) | |
3387 | dbus_message_unref(reply); | |
3388 | ||
3389 | dbus_error_free(&error); | |
3390 | ||
3391 | return r; | |
3392 | } | |
3393 | ||
3394 | static int reset_failed(DBusConnection *bus, char **args) { | |
3395 | DBusMessage *m = NULL; | |
3396 | int r; | |
3397 | DBusError error; | |
3398 | char **name; | |
3399 | ||
3400 | assert(bus); | |
3401 | dbus_error_init(&error); | |
3402 | ||
3403 | if (strv_length(args) <= 1) | |
3404 | return daemon_reload(bus, args); | |
3405 | ||
3406 | STRV_FOREACH(name, args+1) { | |
3407 | DBusMessage *reply; | |
3408 | ||
3409 | if (!(m = dbus_message_new_method_call( | |
3410 | "org.freedesktop.systemd1", | |
3411 | "/org/freedesktop/systemd1", | |
3412 | "org.freedesktop.systemd1.Manager", | |
3413 | "ResetFailedUnit"))) { | |
3414 | log_error("Could not allocate message."); | |
3415 | r = -ENOMEM; | |
3416 | goto finish; | |
3417 | } | |
3418 | ||
3419 | if (!dbus_message_append_args(m, | |
3420 | DBUS_TYPE_STRING, name, | |
3421 | DBUS_TYPE_INVALID)) { | |
3422 | log_error("Could not append arguments to message."); | |
3423 | r = -ENOMEM; | |
3424 | goto finish; | |
3425 | } | |
3426 | ||
3427 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3428 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3429 | r = -EIO; | |
3430 | goto finish; | |
3431 | } | |
3432 | ||
3433 | dbus_message_unref(m); | |
3434 | dbus_message_unref(reply); | |
3435 | m = reply = NULL; | |
3436 | } | |
3437 | ||
3438 | r = 0; | |
3439 | ||
3440 | finish: | |
3441 | if (m) | |
3442 | dbus_message_unref(m); | |
3443 | ||
3444 | dbus_error_free(&error); | |
3445 | ||
3446 | return r; | |
3447 | } | |
3448 | ||
3449 | static int show_enviroment(DBusConnection *bus, char **args) { | |
3450 | DBusMessage *m = NULL, *reply = NULL; | |
3451 | DBusError error; | |
3452 | DBusMessageIter iter, sub, sub2; | |
3453 | int r; | |
3454 | const char | |
3455 | *interface = "org.freedesktop.systemd1.Manager", | |
3456 | *property = "Environment"; | |
3457 | ||
3458 | dbus_error_init(&error); | |
3459 | ||
3460 | pager_open_if_enabled(); | |
3461 | ||
3462 | if (!(m = dbus_message_new_method_call( | |
3463 | "org.freedesktop.systemd1", | |
3464 | "/org/freedesktop/systemd1", | |
3465 | "org.freedesktop.DBus.Properties", | |
3466 | "Get"))) { | |
3467 | log_error("Could not allocate message."); | |
3468 | return -ENOMEM; | |
3469 | } | |
3470 | ||
3471 | if (!dbus_message_append_args(m, | |
3472 | DBUS_TYPE_STRING, &interface, | |
3473 | DBUS_TYPE_STRING, &property, | |
3474 | DBUS_TYPE_INVALID)) { | |
3475 | log_error("Could not append arguments to message."); | |
3476 | r = -ENOMEM; | |
3477 | goto finish; | |
3478 | } | |
3479 | ||
3480 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3481 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3482 | r = -EIO; | |
3483 | goto finish; | |
3484 | } | |
3485 | ||
3486 | if (!dbus_message_iter_init(reply, &iter) || | |
3487 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
3488 | log_error("Failed to parse reply."); | |
3489 | r = -EIO; | |
3490 | goto finish; | |
3491 | } | |
3492 | ||
3493 | dbus_message_iter_recurse(&iter, &sub); | |
3494 | ||
3495 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY || | |
3496 | dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) { | |
3497 | log_error("Failed to parse reply."); | |
3498 | r = -EIO; | |
3499 | goto finish; | |
3500 | } | |
3501 | ||
3502 | dbus_message_iter_recurse(&sub, &sub2); | |
3503 | ||
3504 | while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) { | |
3505 | const char *text; | |
3506 | ||
3507 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) { | |
3508 | log_error("Failed to parse reply."); | |
3509 | r = -EIO; | |
3510 | goto finish; | |
3511 | } | |
3512 | ||
3513 | dbus_message_iter_get_basic(&sub2, &text); | |
3514 | printf("%s\n", text); | |
3515 | ||
3516 | dbus_message_iter_next(&sub2); | |
3517 | } | |
3518 | ||
3519 | r = 0; | |
3520 | ||
3521 | finish: | |
3522 | if (m) | |
3523 | dbus_message_unref(m); | |
3524 | ||
3525 | if (reply) | |
3526 | dbus_message_unref(reply); | |
3527 | ||
3528 | dbus_error_free(&error); | |
3529 | ||
3530 | return r; | |
3531 | } | |
3532 | ||
3533 | static int switch_root(DBusConnection *bus, char **args) { | |
3534 | DBusMessage *m = NULL, *reply = NULL; | |
3535 | unsigned l; | |
3536 | const char *root, *init; | |
3537 | DBusError error; | |
3538 | int r; | |
3539 | ||
3540 | dbus_error_init(&error); | |
3541 | ||
3542 | l = strv_length(args); | |
3543 | if (l < 2 || l > 3) { | |
3544 | log_error("Wrong number of arguments."); | |
3545 | return -EINVAL; | |
3546 | } | |
3547 | ||
3548 | root = args[1]; | |
3549 | init = l >= 3 ? args[2] : ""; | |
3550 | ||
3551 | m = dbus_message_new_method_call( | |
3552 | "org.freedesktop.systemd1", | |
3553 | "/org/freedesktop/systemd1", | |
3554 | "org.freedesktop.systemd1.Manager", | |
3555 | "SwitchRoot"); | |
3556 | if (!m) { | |
3557 | log_error("Could not allocate message."); | |
3558 | return -ENOMEM; | |
3559 | } | |
3560 | ||
3561 | if (!dbus_message_append_args( | |
3562 | m, | |
3563 | DBUS_TYPE_STRING, &root, | |
3564 | DBUS_TYPE_STRING, &init, | |
3565 | DBUS_TYPE_INVALID)) { | |
3566 | log_error("Could not append arguments to message."); | |
3567 | r = -ENOMEM; | |
3568 | goto finish; | |
3569 | } | |
3570 | ||
3571 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
3572 | if (!reply) { | |
3573 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3574 | r = -EIO; | |
3575 | goto finish; | |
3576 | } | |
3577 | ||
3578 | r = 0; | |
3579 | ||
3580 | finish: | |
3581 | if (m) | |
3582 | dbus_message_unref(m); | |
3583 | ||
3584 | if (reply) | |
3585 | dbus_message_unref(reply); | |
3586 | ||
3587 | dbus_error_free(&error); | |
3588 | ||
3589 | return r; | |
3590 | } | |
3591 | ||
3592 | static int set_environment(DBusConnection *bus, char **args) { | |
3593 | DBusMessage *m = NULL, *reply = NULL; | |
3594 | DBusError error; | |
3595 | int r; | |
3596 | const char *method; | |
3597 | DBusMessageIter iter, sub; | |
3598 | char **name; | |
3599 | ||
3600 | dbus_error_init(&error); | |
3601 | ||
3602 | method = streq(args[0], "set-environment") | |
3603 | ? "SetEnvironment" | |
3604 | : "UnsetEnvironment"; | |
3605 | ||
3606 | if (!(m = dbus_message_new_method_call( | |
3607 | "org.freedesktop.systemd1", | |
3608 | "/org/freedesktop/systemd1", | |
3609 | "org.freedesktop.systemd1.Manager", | |
3610 | method))) { | |
3611 | ||
3612 | log_error("Could not allocate message."); | |
3613 | return -ENOMEM; | |
3614 | } | |
3615 | ||
3616 | dbus_message_iter_init_append(m, &iter); | |
3617 | ||
3618 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) { | |
3619 | log_error("Could not append arguments to message."); | |
3620 | r = -ENOMEM; | |
3621 | goto finish; | |
3622 | } | |
3623 | ||
3624 | STRV_FOREACH(name, args+1) | |
3625 | if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) { | |
3626 | log_error("Could not append arguments to message."); | |
3627 | r = -ENOMEM; | |
3628 | goto finish; | |
3629 | } | |
3630 | ||
3631 | if (!dbus_message_iter_close_container(&iter, &sub)) { | |
3632 | log_error("Could not append arguments to message."); | |
3633 | r = -ENOMEM; | |
3634 | goto finish; | |
3635 | } | |
3636 | ||
3637 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3638 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3639 | r = -EIO; | |
3640 | goto finish; | |
3641 | } | |
3642 | ||
3643 | r = 0; | |
3644 | ||
3645 | finish: | |
3646 | if (m) | |
3647 | dbus_message_unref(m); | |
3648 | ||
3649 | if (reply) | |
3650 | dbus_message_unref(reply); | |
3651 | ||
3652 | dbus_error_free(&error); | |
3653 | ||
3654 | return r; | |
3655 | } | |
3656 | ||
3657 | static int enable_sysv_units(char **args) { | |
3658 | int r = 0; | |
3659 | ||
3660 | #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA)) | |
3661 | const char *verb = args[0]; | |
3662 | unsigned f = 1, t = 1; | |
3663 | LookupPaths paths; | |
3664 | ||
3665 | if (arg_scope != UNIT_FILE_SYSTEM) | |
3666 | return 0; | |
3667 | ||
3668 | if (!streq(verb, "enable") && | |
3669 | !streq(verb, "disable") && | |
3670 | !streq(verb, "is-enabled")) | |
3671 | return 0; | |
3672 | ||
3673 | /* Processes all SysV units, and reshuffles the array so that | |
3674 | * afterwards only the native units remain */ | |
3675 | ||
3676 | zero(paths); | |
3677 | r = lookup_paths_init(&paths, MANAGER_SYSTEM, false); | |
3678 | if (r < 0) | |
3679 | return r; | |
3680 | ||
3681 | r = 0; | |
3682 | ||
3683 | for (f = 1; args[f]; f++) { | |
3684 | const char *name; | |
3685 | char *p; | |
3686 | bool found_native = false, found_sysv; | |
3687 | unsigned c = 1; | |
3688 | const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL }; | |
3689 | char **k, *l, *q = NULL; | |
3690 | int j; | |
3691 | pid_t pid; | |
3692 | siginfo_t status; | |
3693 | ||
3694 | name = args[f]; | |
3695 | ||
3696 | if (!endswith(name, ".service")) | |
3697 | continue; | |
3698 | ||
3699 | if (path_is_absolute(name)) | |
3700 | continue; | |
3701 | ||
3702 | STRV_FOREACH(k, paths.unit_path) { | |
3703 | p = NULL; | |
3704 | ||
3705 | if (!isempty(arg_root)) | |
3706 | asprintf(&p, "%s/%s/%s", arg_root, *k, name); | |
3707 | else | |
3708 | asprintf(&p, "%s/%s", *k, name); | |
3709 | ||
3710 | if (!p) { | |
3711 | log_error("No memory"); | |
3712 | r = -ENOMEM; | |
3713 | goto finish; | |
3714 | } | |
3715 | ||
3716 | found_native = access(p, F_OK) >= 0; | |
3717 | free(p); | |
3718 | ||
3719 | if (found_native) | |
3720 | break; | |
3721 | } | |
3722 | ||
3723 | if (found_native) | |
3724 | continue; | |
3725 | ||
3726 | p = NULL; | |
3727 | if (!isempty(arg_root)) | |
3728 | asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name); | |
3729 | else | |
3730 | asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name); | |
3731 | if (!p) { | |
3732 | log_error("No memory"); | |
3733 | r = -ENOMEM; | |
3734 | goto finish; | |
3735 | } | |
3736 | ||
3737 | p[strlen(p) - sizeof(".service") + 1] = 0; | |
3738 | found_sysv = access(p, F_OK) >= 0; | |
3739 | ||
3740 | if (!found_sysv) { | |
3741 | free(p); | |
3742 | continue; | |
3743 | } | |
3744 | ||
3745 | /* Mark this entry, so that we don't try enabling it as native unit */ | |
3746 | args[f] = (char*) ""; | |
3747 | ||
3748 | log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name); | |
3749 | ||
3750 | if (!isempty(arg_root)) | |
3751 | argv[c++] = q = strappend("--root=", arg_root); | |
3752 | ||
3753 | argv[c++] = path_get_file_name(p); | |
3754 | argv[c++] = | |
3755 | streq(verb, "enable") ? "on" : | |
3756 | streq(verb, "disable") ? "off" : "--level=5"; | |
3757 | argv[c] = NULL; | |
3758 | ||
3759 | l = strv_join((char**)argv, " "); | |
3760 | if (!l) { | |
3761 | log_error("No memory."); | |
3762 | free(q); | |
3763 | free(p); | |
3764 | r = -ENOMEM; | |
3765 | goto finish; | |
3766 | } | |
3767 | ||
3768 | log_info("Executing %s", l); | |
3769 | free(l); | |
3770 | ||
3771 | pid = fork(); | |
3772 | if (pid < 0) { | |
3773 | log_error("Failed to fork: %m"); | |
3774 | free(p); | |
3775 | free(q); | |
3776 | r = -errno; | |
3777 | goto finish; | |
3778 | } else if (pid == 0) { | |
3779 | /* Child */ | |
3780 | ||
3781 | execv(argv[0], (char**) argv); | |
3782 | _exit(EXIT_FAILURE); | |
3783 | } | |
3784 | ||
3785 | free(p); | |
3786 | free(q); | |
3787 | ||
3788 | j = wait_for_terminate(pid, &status); | |
3789 | if (j < 0) { | |
3790 | log_error("Failed to wait for child: %s", strerror(-r)); | |
3791 | r = j; | |
3792 | goto finish; | |
3793 | } | |
3794 | ||
3795 | if (status.si_code == CLD_EXITED) { | |
3796 | if (streq(verb, "is-enabled")) { | |
3797 | if (status.si_status == 0) { | |
3798 | if (!arg_quiet) | |
3799 | puts("enabled"); | |
3800 | r = 1; | |
3801 | } else { | |
3802 | if (!arg_quiet) | |
3803 | puts("disabled"); | |
3804 | } | |
3805 | ||
3806 | } else if (status.si_status != 0) { | |
3807 | r = -EINVAL; | |
3808 | goto finish; | |
3809 | } | |
3810 | } else { | |
3811 | r = -EPROTO; | |
3812 | goto finish; | |
3813 | } | |
3814 | } | |
3815 | ||
3816 | finish: | |
3817 | lookup_paths_free(&paths); | |
3818 | ||
3819 | /* Drop all SysV units */ | |
3820 | for (f = 1, t = 1; args[f]; f++) { | |
3821 | ||
3822 | if (isempty(args[f])) | |
3823 | continue; | |
3824 | ||
3825 | args[t++] = args[f]; | |
3826 | } | |
3827 | ||
3828 | args[t] = NULL; | |
3829 | ||
3830 | #endif | |
3831 | return r; | |
3832 | } | |
3833 | ||
3834 | static int enable_unit(DBusConnection *bus, char **args) { | |
3835 | const char *verb = args[0]; | |
3836 | UnitFileChange *changes = NULL; | |
3837 | unsigned n_changes = 0, i; | |
3838 | int carries_install_info = -1; | |
3839 | DBusMessage *m = NULL, *reply = NULL; | |
3840 | int r; | |
3841 | DBusError error; | |
3842 | ||
3843 | r = enable_sysv_units(args); | |
3844 | if (r < 0) | |
3845 | return r; | |
3846 | ||
3847 | if (!args[1]) | |
3848 | return 0; | |
3849 | ||
3850 | dbus_error_init(&error); | |
3851 | ||
3852 | if (!bus || avoid_bus()) { | |
3853 | if (streq(verb, "enable")) { | |
3854 | r = unit_file_enable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes); | |
3855 | carries_install_info = r; | |
3856 | } else if (streq(verb, "disable")) | |
3857 | r = unit_file_disable(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes); | |
3858 | else if (streq(verb, "reenable")) { | |
3859 | r = unit_file_reenable(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes); | |
3860 | carries_install_info = r; | |
3861 | } else if (streq(verb, "link")) | |
3862 | r = unit_file_link(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes); | |
3863 | else if (streq(verb, "preset")) { | |
3864 | r = unit_file_preset(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes); | |
3865 | carries_install_info = r; | |
3866 | } else if (streq(verb, "mask")) | |
3867 | r = unit_file_mask(arg_scope, arg_runtime, arg_root, args+1, arg_force, &changes, &n_changes); | |
3868 | else if (streq(verb, "unmask")) | |
3869 | r = unit_file_unmask(arg_scope, arg_runtime, arg_root, args+1, &changes, &n_changes); | |
3870 | else | |
3871 | assert_not_reached("Unknown verb"); | |
3872 | ||
3873 | if (r < 0) { | |
3874 | log_error("Operation failed: %s", strerror(-r)); | |
3875 | goto finish; | |
3876 | } | |
3877 | ||
3878 | if (!arg_quiet) { | |
3879 | for (i = 0; i < n_changes; i++) { | |
3880 | if (changes[i].type == UNIT_FILE_SYMLINK) | |
3881 | log_info("ln -s '%s' '%s'", changes[i].source, changes[i].path); | |
3882 | else | |
3883 | log_info("rm '%s'", changes[i].path); | |
3884 | } | |
3885 | } | |
3886 | ||
3887 | } else { | |
3888 | const char *method; | |
3889 | bool send_force = true, expect_carries_install_info = false; | |
3890 | dbus_bool_t a, b; | |
3891 | DBusMessageIter iter, sub, sub2; | |
3892 | ||
3893 | if (streq(verb, "enable")) { | |
3894 | method = "EnableUnitFiles"; | |
3895 | expect_carries_install_info = true; | |
3896 | } else if (streq(verb, "disable")) { | |
3897 | method = "DisableUnitFiles"; | |
3898 | send_force = false; | |
3899 | } else if (streq(verb, "reenable")) { | |
3900 | method = "ReenableUnitFiles"; | |
3901 | expect_carries_install_info = true; | |
3902 | } else if (streq(verb, "link")) | |
3903 | method = "LinkUnitFiles"; | |
3904 | else if (streq(verb, "preset")) { | |
3905 | method = "PresetUnitFiles"; | |
3906 | expect_carries_install_info = true; | |
3907 | } else if (streq(verb, "mask")) | |
3908 | method = "MaskUnitFiles"; | |
3909 | else if (streq(verb, "unmask")) { | |
3910 | method = "UnmaskUnitFiles"; | |
3911 | send_force = false; | |
3912 | } else | |
3913 | assert_not_reached("Unknown verb"); | |
3914 | ||
3915 | m = dbus_message_new_method_call( | |
3916 | "org.freedesktop.systemd1", | |
3917 | "/org/freedesktop/systemd1", | |
3918 | "org.freedesktop.systemd1.Manager", | |
3919 | method); | |
3920 | if (!m) { | |
3921 | log_error("Out of memory"); | |
3922 | r = -ENOMEM; | |
3923 | goto finish; | |
3924 | } | |
3925 | ||
3926 | dbus_message_iter_init_append(m, &iter); | |
3927 | ||
3928 | r = bus_append_strv_iter(&iter, args+1); | |
3929 | if (r < 0) { | |
3930 | log_error("Failed to append unit files."); | |
3931 | goto finish; | |
3932 | } | |
3933 | ||
3934 | a = arg_runtime; | |
3935 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &a)) { | |
3936 | log_error("Failed to append runtime boolean."); | |
3937 | r = -ENOMEM; | |
3938 | goto finish; | |
3939 | } | |
3940 | ||
3941 | if (send_force) { | |
3942 | b = arg_force; | |
3943 | ||
3944 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b)) { | |
3945 | log_error("Failed to append force boolean."); | |
3946 | r = -ENOMEM; | |
3947 | goto finish; | |
3948 | } | |
3949 | } | |
3950 | ||
3951 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
3952 | if (!reply) { | |
3953 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3954 | r = -EIO; | |
3955 | goto finish; | |
3956 | } | |
3957 | ||
3958 | if (!dbus_message_iter_init(reply, &iter)) { | |
3959 | log_error("Failed to initialize iterator."); | |
3960 | goto finish; | |
3961 | } | |
3962 | ||
3963 | if (expect_carries_install_info) { | |
3964 | r = bus_iter_get_basic_and_next(&iter, DBUS_TYPE_BOOLEAN, &b, true); | |
3965 | if (r < 0) { | |
3966 | log_error("Failed to parse reply."); | |
3967 | goto finish; | |
3968 | } | |
3969 | ||
3970 | carries_install_info = b; | |
3971 | } | |
3972 | ||
3973 | if (dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
3974 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
3975 | log_error("Failed to parse reply."); | |
3976 | r = -EIO; | |
3977 | goto finish; | |
3978 | } | |
3979 | ||
3980 | dbus_message_iter_recurse(&iter, &sub); | |
3981 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
3982 | const char *type, *path, *source; | |
3983 | ||
3984 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
3985 | log_error("Failed to parse reply."); | |
3986 | r = -EIO; | |
3987 | goto finish; | |
3988 | } | |
3989 | ||
3990 | dbus_message_iter_recurse(&sub, &sub2); | |
3991 | ||
3992 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 || | |
3993 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0 || | |
3994 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &source, false) < 0) { | |
3995 | log_error("Failed to parse reply."); | |
3996 | r = -EIO; | |
3997 | goto finish; | |
3998 | } | |
3999 | ||
4000 | if (!arg_quiet) { | |
4001 | if (streq(type, "symlink")) | |
4002 | log_info("ln -s '%s' '%s'", source, path); | |
4003 | else | |
4004 | log_info("rm '%s'", path); | |
4005 | } | |
4006 | ||
4007 | dbus_message_iter_next(&sub); | |
4008 | } | |
4009 | ||
4010 | /* Try to reload if enabeld */ | |
4011 | if (!arg_no_reload) | |
4012 | r = daemon_reload(bus, args); | |
4013 | } | |
4014 | ||
4015 | if (carries_install_info == 0) | |
4016 | log_warning("Warning: unit files do not carry install information. No operation executed."); | |
4017 | ||
4018 | finish: | |
4019 | if (m) | |
4020 | dbus_message_unref(m); | |
4021 | ||
4022 | if (reply) | |
4023 | dbus_message_unref(reply); | |
4024 | ||
4025 | unit_file_changes_free(changes, n_changes); | |
4026 | ||
4027 | dbus_error_free(&error); | |
4028 | return r; | |
4029 | } | |
4030 | ||
4031 | static int unit_is_enabled(DBusConnection *bus, char **args) { | |
4032 | DBusError error; | |
4033 | int r; | |
4034 | DBusMessage *m = NULL, *reply = NULL; | |
4035 | bool enabled; | |
4036 | char **name; | |
4037 | ||
4038 | dbus_error_init(&error); | |
4039 | ||
4040 | r = enable_sysv_units(args); | |
4041 | if (r < 0) | |
4042 | return r; | |
4043 | ||
4044 | enabled = r > 0; | |
4045 | ||
4046 | if (!bus || avoid_bus()) { | |
4047 | ||
4048 | STRV_FOREACH(name, args+1) { | |
4049 | UnitFileState state; | |
4050 | ||
4051 | state = unit_file_get_state(arg_scope, arg_root, *name); | |
4052 | if (state < 0) { | |
4053 | r = state; | |
4054 | goto finish; | |
4055 | } | |
4056 | ||
4057 | if (state == UNIT_FILE_ENABLED || | |
4058 | state == UNIT_FILE_ENABLED_RUNTIME || | |
4059 | state == UNIT_FILE_STATIC) | |
4060 | enabled = true; | |
4061 | ||
4062 | if (!arg_quiet) | |
4063 | puts(unit_file_state_to_string(state)); | |
4064 | } | |
4065 | ||
4066 | } else { | |
4067 | STRV_FOREACH(name, args+1) { | |
4068 | const char *s; | |
4069 | ||
4070 | m = dbus_message_new_method_call( | |
4071 | "org.freedesktop.systemd1", | |
4072 | "/org/freedesktop/systemd1", | |
4073 | "org.freedesktop.systemd1.Manager", | |
4074 | "GetUnitFileState"); | |
4075 | if (!m) { | |
4076 | log_error("Out of memory"); | |
4077 | r = -ENOMEM; | |
4078 | goto finish; | |
4079 | } | |
4080 | ||
4081 | if (!dbus_message_append_args(m, | |
4082 | DBUS_TYPE_STRING, name, | |
4083 | DBUS_TYPE_INVALID)) { | |
4084 | log_error("Could not append arguments to message."); | |
4085 | r = -ENOMEM; | |
4086 | goto finish; | |
4087 | } | |
4088 | ||
4089 | reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error); | |
4090 | if (!reply) { | |
4091 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
4092 | r = -EIO; | |
4093 | goto finish; | |
4094 | } | |
4095 | ||
4096 | if (!dbus_message_get_args(reply, &error, | |
4097 | DBUS_TYPE_STRING, &s, | |
4098 | DBUS_TYPE_INVALID)) { | |
4099 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
4100 | r = -EIO; | |
4101 | goto finish; | |
4102 | } | |
4103 | ||
4104 | dbus_message_unref(m); | |
4105 | dbus_message_unref(reply); | |
4106 | m = reply = NULL; | |
4107 | ||
4108 | if (streq(s, "enabled") || | |
4109 | streq(s, "enabled-runtime") || | |
4110 | streq(s, "static")) | |
4111 | enabled = true; | |
4112 | ||
4113 | if (!arg_quiet) | |
4114 | puts(s); | |
4115 | } | |
4116 | } | |
4117 | ||
4118 | r = enabled ? 0 : 1; | |
4119 | ||
4120 | finish: | |
4121 | if (m) | |
4122 | dbus_message_unref(m); | |
4123 | ||
4124 | if (reply) | |
4125 | dbus_message_unref(reply); | |
4126 | ||
4127 | dbus_error_free(&error); | |
4128 | return r; | |
4129 | } | |
4130 | ||
4131 | static int systemctl_help(void) { | |
4132 | ||
4133 | pager_open_if_enabled(); | |
4134 | ||
4135 | printf("%s [OPTIONS...] {COMMAND} ...\n\n" | |
4136 | "Query or send control commands to the systemd manager.\n\n" | |
4137 | " -h --help Show this help\n" | |
4138 | " --version Show package version\n" | |
4139 | " -t --type=TYPE List only units of a particular type\n" | |
4140 | " -p --property=NAME Show only properties by this name\n" | |
4141 | " -a --all Show all units/properties, including dead/empty ones\n" | |
4142 | " --failed Show only failed units\n" | |
4143 | " --full Don't ellipsize unit names on output\n" | |
4144 | " --fail When queueing a new job, fail if conflicting jobs are\n" | |
4145 | " pending\n" | |
4146 | " --ignore-dependencies\n" | |
4147 | " When queueing a new job, ignore all its dependencies\n" | |
4148 | " --kill-who=WHO Who to send signal to\n" | |
4149 | " -s --signal=SIGNAL Which signal to send\n" | |
4150 | " -H --host=[USER@]HOST\n" | |
4151 | " Show information for remote host\n" | |
4152 | " -P --privileged Acquire privileges before execution\n" | |
4153 | " -q --quiet Suppress output\n" | |
4154 | " --no-block Do not wait until operation finished\n" | |
4155 | " --no-wall Don't send wall message before halt/power-off/reboot\n" | |
4156 | " --no-reload When enabling/disabling unit files, don't reload daemon\n" | |
4157 | " configuration\n" | |
4158 | " --no-legend Do not print a legend (column headers and hints)\n" | |
4159 | " --no-pager Do not pipe output into a pager\n" | |
4160 | " --no-ask-password\n" | |
4161 | " Do not ask for system passwords\n" | |
4162 | " --order When generating graph for dot, show only order\n" | |
4163 | " --require When generating graph for dot, show only requirement\n" | |
4164 | " --system Connect to system manager\n" | |
4165 | " --user Connect to user service manager\n" | |
4166 | " --global Enable/disable unit files globally\n" | |
4167 | " -f --force When enabling unit files, override existing symlinks\n" | |
4168 | " When shutting down, execute action immediately\n" | |
4169 | " --root=PATH Enable unit files in the specified root directory\n" | |
4170 | " --runtime Enable unit files only temporarily until next reboot\n" | |
4171 | " -n --lines=INTEGER Journal entries to show\n" | |
4172 | " --follow Follow journal\n" | |
4173 | " -o --output=STRING Change journal output mode (short, short-monotonic,\n" | |
4174 | " verbose, export, json, cat)\n\n" | |
4175 | "Unit Commands:\n" | |
4176 | " list-units List loaded units\n" | |
4177 | " start [NAME...] Start (activate) one or more units\n" | |
4178 | " stop [NAME...] Stop (deactivate) one or more units\n" | |
4179 | " reload [NAME...] Reload one or more units\n" | |
4180 | " restart [NAME...] Start or restart one or more units\n" | |
4181 | " try-restart [NAME...] Restart one or more units if active\n" | |
4182 | " reload-or-restart [NAME...] Reload one or more units is possible,\n" | |
4183 | " otherwise start or restart\n" | |
4184 | " reload-or-try-restart [NAME...] Reload one or more units is possible,\n" | |
4185 | " otherwise restart if active\n" | |
4186 | " isolate [NAME] Start one unit and stop all others\n" | |
4187 | " kill [NAME...] Send signal to processes of a unit\n" | |
4188 | " is-active [NAME...] Check whether units are active\n" | |
4189 | " status [NAME...|PID...] Show runtime status of one or more units\n" | |
4190 | " show [NAME...|JOB...] Show properties of one or more\n" | |
4191 | " units/jobs or the manager\n" | |
4192 | " reset-failed [NAME...] Reset failed state for all, one, or more\n" | |
4193 | " units\n" | |
4194 | " load [NAME...] Load one or more units\n\n" | |
4195 | "Unit File Commands:\n" | |
4196 | " list-unit-files List installed unit files\n" | |
4197 | " enable [NAME...] Enable one or more unit files\n" | |
4198 | " disable [NAME...] Disable one or more unit files\n" | |
4199 | " reenable [NAME...] Reenable one or more unit files\n" | |
4200 | " preset [NAME...] Enable/disable one or more unit files\n" | |
4201 | " based on preset configuration\n" | |
4202 | " mask [NAME...] Mask one or more units\n" | |
4203 | " unmask [NAME...] Unmask one or more units\n" | |
4204 | " link [PATH...] Link one or more units files into\n" | |
4205 | " the search path\n" | |
4206 | " is-enabled [NAME...] Check whether unit files are enabled\n\n" | |
4207 | "Job Commands:\n" | |
4208 | " list-jobs List jobs\n" | |
4209 | " cancel [JOB...] Cancel all, one, or more jobs\n\n" | |
4210 | "Status Commands:\n" | |
4211 | " dump Dump server status\n" | |
4212 | " dot Dump dependency graph for dot(1)\n\n" | |
4213 | "Snapshot Commands:\n" | |
4214 | " snapshot [NAME] Create a snapshot\n" | |
4215 | " delete [NAME...] Remove one or more snapshots\n\n" | |
4216 | "Environment Commands:\n" | |
4217 | " show-environment Dump environment\n" | |
4218 | " set-environment [NAME=VALUE...] Set one or more environment variables\n" | |
4219 | " unset-environment [NAME...] Unset one or more environment variables\n\n" | |
4220 | "Manager Lifecycle Commands:\n" | |
4221 | " daemon-reload Reload systemd manager configuration\n" | |
4222 | " daemon-reexec Reexecute systemd manager\n\n" | |
4223 | "System Commands:\n" | |
4224 | " default Enter system default mode\n" | |
4225 | " rescue Enter system rescue mode\n" | |
4226 | " emergency Enter system emergency mode\n" | |
4227 | " halt Shut down and halt the system\n" | |
4228 | " poweroff Shut down and power-off the system\n" | |
4229 | " reboot Shut down and reboot the system\n" | |
4230 | " kexec Shut down and reboot the system with kexec\n" | |
4231 | " exit Request user instance exit\n" | |
4232 | " switch-root [ROOT] [INIT] Change to a different root file system\n" | |
4233 | " suspend Suspend the system\n" | |
4234 | " hibernate Hibernate the system\n", | |
4235 | program_invocation_short_name); | |
4236 | ||
4237 | return 0; | |
4238 | } | |
4239 | ||
4240 | static int halt_help(void) { | |
4241 | ||
4242 | printf("%s [OPTIONS...]\n\n" | |
4243 | "%s the system.\n\n" | |
4244 | " --help Show this help\n" | |
4245 | " --halt Halt the machine\n" | |
4246 | " -p --poweroff Switch off the machine\n" | |
4247 | " --reboot Reboot the machine\n" | |
4248 | " -f --force Force immediate halt/power-off/reboot\n" | |
4249 | " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n" | |
4250 | " -d --no-wtmp Don't write wtmp record\n" | |
4251 | " -n --no-sync Don't sync before halt/power-off/reboot\n" | |
4252 | " --no-wall Don't send wall message before halt/power-off/reboot\n", | |
4253 | program_invocation_short_name, | |
4254 | arg_action == ACTION_REBOOT ? "Reboot" : | |
4255 | arg_action == ACTION_POWEROFF ? "Power off" : | |
4256 | "Halt"); | |
4257 | ||
4258 | return 0; | |
4259 | } | |
4260 | ||
4261 | static int shutdown_help(void) { | |
4262 | ||
4263 | printf("%s [OPTIONS...] [TIME] [WALL...]\n\n" | |
4264 | "Shut down the system.\n\n" | |
4265 | " --help Show this help\n" | |
4266 | " -H --halt Halt the machine\n" | |
4267 | " -P --poweroff Power-off the machine\n" | |
4268 | " -r --reboot Reboot the machine\n" | |
4269 | " -h Equivalent to --poweroff, overriden by --halt\n" | |
4270 | " -k Don't halt/power-off/reboot, just send warnings\n" | |
4271 | " --no-wall Don't send wall message before halt/power-off/reboot\n" | |
4272 | " -c Cancel a pending shutdown\n", | |
4273 | program_invocation_short_name); | |
4274 | ||
4275 | return 0; | |
4276 | } | |
4277 | ||
4278 | static int telinit_help(void) { | |
4279 | ||
4280 | printf("%s [OPTIONS...] {COMMAND}\n\n" | |
4281 | "Send control commands to the init daemon.\n\n" | |
4282 | " --help Show this help\n" | |
4283 | " --no-wall Don't send wall message before halt/power-off/reboot\n\n" | |
4284 | "Commands:\n" | |
4285 | " 0 Power-off the machine\n" | |
4286 | " 6 Reboot the machine\n" | |
4287 | " 2, 3, 4, 5 Start runlevelX.target unit\n" | |
4288 | " 1, s, S Enter rescue mode\n" | |
4289 | " q, Q Reload init daemon configuration\n" | |
4290 | " u, U Reexecute init daemon\n", | |
4291 | program_invocation_short_name); | |
4292 | ||
4293 | return 0; | |
4294 | } | |
4295 | ||
4296 | static int runlevel_help(void) { | |
4297 | ||
4298 | printf("%s [OPTIONS...]\n\n" | |
4299 | "Prints the previous and current runlevel of the init system.\n\n" | |
4300 | " --help Show this help\n", | |
4301 | program_invocation_short_name); | |
4302 | ||
4303 | return 0; | |
4304 | } | |
4305 | ||
4306 | static int systemctl_parse_argv(int argc, char *argv[]) { | |
4307 | ||
4308 | enum { | |
4309 | ARG_FAIL = 0x100, | |
4310 | ARG_IGNORE_DEPENDENCIES, | |
4311 | ARG_VERSION, | |
4312 | ARG_USER, | |
4313 | ARG_SYSTEM, | |
4314 | ARG_GLOBAL, | |
4315 | ARG_NO_BLOCK, | |
4316 | ARG_NO_LEGEND, | |
4317 | ARG_NO_PAGER, | |
4318 | ARG_NO_WALL, | |
4319 | ARG_ORDER, | |
4320 | ARG_REQUIRE, | |
4321 | ARG_ROOT, | |
4322 | ARG_FULL, | |
4323 | ARG_NO_RELOAD, | |
4324 | ARG_KILL_MODE, | |
4325 | ARG_KILL_WHO, | |
4326 | ARG_NO_ASK_PASSWORD, | |
4327 | ARG_FAILED, | |
4328 | ARG_RUNTIME, | |
4329 | ARG_FOLLOW, | |
4330 | ARG_FORCE | |
4331 | }; | |
4332 | ||
4333 | static const struct option options[] = { | |
4334 | { "help", no_argument, NULL, 'h' }, | |
4335 | { "version", no_argument, NULL, ARG_VERSION }, | |
4336 | { "type", required_argument, NULL, 't' }, | |
4337 | { "property", required_argument, NULL, 'p' }, | |
4338 | { "all", no_argument, NULL, 'a' }, | |
4339 | { "failed", no_argument, NULL, ARG_FAILED }, | |
4340 | { "full", no_argument, NULL, ARG_FULL }, | |
4341 | { "fail", no_argument, NULL, ARG_FAIL }, | |
4342 | { "ignore-dependencies", no_argument, NULL, ARG_IGNORE_DEPENDENCIES }, | |
4343 | { "user", no_argument, NULL, ARG_USER }, | |
4344 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
4345 | { "global", no_argument, NULL, ARG_GLOBAL }, | |
4346 | { "no-block", no_argument, NULL, ARG_NO_BLOCK }, | |
4347 | { "no-legend", no_argument, NULL, ARG_NO_LEGEND }, | |
4348 | { "no-pager", no_argument, NULL, ARG_NO_PAGER }, | |
4349 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4350 | { "quiet", no_argument, NULL, 'q' }, | |
4351 | { "order", no_argument, NULL, ARG_ORDER }, | |
4352 | { "require", no_argument, NULL, ARG_REQUIRE }, | |
4353 | { "root", required_argument, NULL, ARG_ROOT }, | |
4354 | { "force", no_argument, NULL, ARG_FORCE }, | |
4355 | { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, | |
4356 | { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, /* undocumented on purpose */ | |
4357 | { "kill-who", required_argument, NULL, ARG_KILL_WHO }, | |
4358 | { "signal", required_argument, NULL, 's' }, | |
4359 | { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, | |
4360 | { "host", required_argument, NULL, 'H' }, | |
4361 | { "privileged",no_argument, NULL, 'P' }, | |
4362 | { "runtime", no_argument, NULL, ARG_RUNTIME }, | |
4363 | { "lines", required_argument, NULL, 'n' }, | |
4364 | { "follow", no_argument, NULL, ARG_FOLLOW }, | |
4365 | { "output", required_argument, NULL, 'o' }, | |
4366 | { NULL, 0, NULL, 0 } | |
4367 | }; | |
4368 | ||
4369 | int c; | |
4370 | ||
4371 | assert(argc >= 0); | |
4372 | assert(argv); | |
4373 | ||
4374 | while ((c = getopt_long(argc, argv, "ht:p:aqfs:H:Pn:o:", options, NULL)) >= 0) { | |
4375 | ||
4376 | switch (c) { | |
4377 | ||
4378 | case 'h': | |
4379 | systemctl_help(); | |
4380 | return 0; | |
4381 | ||
4382 | case ARG_VERSION: | |
4383 | puts(PACKAGE_STRING); | |
4384 | puts(DISTRIBUTION); | |
4385 | puts(SYSTEMD_FEATURES); | |
4386 | return 0; | |
4387 | ||
4388 | case 't': | |
4389 | arg_type = optarg; | |
4390 | break; | |
4391 | ||
4392 | case 'p': { | |
4393 | char **l; | |
4394 | ||
4395 | if (!(l = strv_append(arg_property, optarg))) | |
4396 | return -ENOMEM; | |
4397 | ||
4398 | strv_free(arg_property); | |
4399 | arg_property = l; | |
4400 | ||
4401 | /* If the user asked for a particular | |
4402 | * property, show it to him, even if it is | |
4403 | * empty. */ | |
4404 | arg_all = true; | |
4405 | break; | |
4406 | } | |
4407 | ||
4408 | case 'a': | |
4409 | arg_all = true; | |
4410 | break; | |
4411 | ||
4412 | case ARG_FAIL: | |
4413 | arg_job_mode = "fail"; | |
4414 | break; | |
4415 | ||
4416 | case ARG_IGNORE_DEPENDENCIES: | |
4417 | arg_job_mode = "ignore-dependencies"; | |
4418 | break; | |
4419 | ||
4420 | case ARG_USER: | |
4421 | arg_scope = UNIT_FILE_USER; | |
4422 | break; | |
4423 | ||
4424 | case ARG_SYSTEM: | |
4425 | arg_scope = UNIT_FILE_SYSTEM; | |
4426 | break; | |
4427 | ||
4428 | case ARG_GLOBAL: | |
4429 | arg_scope = UNIT_FILE_GLOBAL; | |
4430 | break; | |
4431 | ||
4432 | case ARG_NO_BLOCK: | |
4433 | arg_no_block = true; | |
4434 | break; | |
4435 | ||
4436 | case ARG_NO_LEGEND: | |
4437 | arg_no_legend = true; | |
4438 | break; | |
4439 | ||
4440 | case ARG_NO_PAGER: | |
4441 | arg_no_pager = true; | |
4442 | break; | |
4443 | ||
4444 | case ARG_NO_WALL: | |
4445 | arg_no_wall = true; | |
4446 | break; | |
4447 | ||
4448 | case ARG_ORDER: | |
4449 | arg_dot = DOT_ORDER; | |
4450 | break; | |
4451 | ||
4452 | case ARG_REQUIRE: | |
4453 | arg_dot = DOT_REQUIRE; | |
4454 | break; | |
4455 | ||
4456 | case ARG_ROOT: | |
4457 | arg_root = optarg; | |
4458 | break; | |
4459 | ||
4460 | case ARG_FULL: | |
4461 | arg_full = true; | |
4462 | break; | |
4463 | ||
4464 | case ARG_FAILED: | |
4465 | arg_failed = true; | |
4466 | break; | |
4467 | ||
4468 | case 'q': | |
4469 | arg_quiet = true; | |
4470 | break; | |
4471 | ||
4472 | case ARG_FORCE: | |
4473 | arg_force ++; | |
4474 | break; | |
4475 | ||
4476 | case ARG_FOLLOW: | |
4477 | arg_follow = true; | |
4478 | break; | |
4479 | ||
4480 | case 'f': | |
4481 | /* -f is short for both --follow and --force! */ | |
4482 | arg_force ++; | |
4483 | arg_follow = true; | |
4484 | break; | |
4485 | ||
4486 | case ARG_NO_RELOAD: | |
4487 | arg_no_reload = true; | |
4488 | break; | |
4489 | ||
4490 | case ARG_KILL_WHO: | |
4491 | arg_kill_who = optarg; | |
4492 | break; | |
4493 | ||
4494 | case ARG_KILL_MODE: | |
4495 | arg_kill_mode = optarg; | |
4496 | break; | |
4497 | ||
4498 | case 's': | |
4499 | if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) { | |
4500 | log_error("Failed to parse signal string %s.", optarg); | |
4501 | return -EINVAL; | |
4502 | } | |
4503 | break; | |
4504 | ||
4505 | case ARG_NO_ASK_PASSWORD: | |
4506 | arg_ask_password = false; | |
4507 | break; | |
4508 | ||
4509 | case 'P': | |
4510 | arg_transport = TRANSPORT_POLKIT; | |
4511 | break; | |
4512 | ||
4513 | case 'H': | |
4514 | arg_transport = TRANSPORT_SSH; | |
4515 | arg_host = optarg; | |
4516 | break; | |
4517 | ||
4518 | case ARG_RUNTIME: | |
4519 | arg_runtime = true; | |
4520 | break; | |
4521 | ||
4522 | case 'n': | |
4523 | if (safe_atou(optarg, &arg_lines) < 0) { | |
4524 | log_error("Failed to parse lines '%s'", optarg); | |
4525 | return -EINVAL; | |
4526 | } | |
4527 | break; | |
4528 | ||
4529 | case 'o': | |
4530 | arg_output = output_mode_from_string(optarg); | |
4531 | if (arg_output < 0) { | |
4532 | log_error("Unknown output '%s'.", optarg); | |
4533 | return -EINVAL; | |
4534 | } | |
4535 | break; | |
4536 | ||
4537 | case '?': | |
4538 | return -EINVAL; | |
4539 | ||
4540 | default: | |
4541 | log_error("Unknown option code %c", c); | |
4542 | return -EINVAL; | |
4543 | } | |
4544 | } | |
4545 | ||
4546 | if (arg_transport != TRANSPORT_NORMAL && arg_scope != UNIT_FILE_SYSTEM) { | |
4547 | log_error("Cannot access user instance remotely."); | |
4548 | return -EINVAL; | |
4549 | } | |
4550 | ||
4551 | return 1; | |
4552 | } | |
4553 | ||
4554 | static int halt_parse_argv(int argc, char *argv[]) { | |
4555 | ||
4556 | enum { | |
4557 | ARG_HELP = 0x100, | |
4558 | ARG_HALT, | |
4559 | ARG_REBOOT, | |
4560 | ARG_NO_WALL | |
4561 | }; | |
4562 | ||
4563 | static const struct option options[] = { | |
4564 | { "help", no_argument, NULL, ARG_HELP }, | |
4565 | { "halt", no_argument, NULL, ARG_HALT }, | |
4566 | { "poweroff", no_argument, NULL, 'p' }, | |
4567 | { "reboot", no_argument, NULL, ARG_REBOOT }, | |
4568 | { "force", no_argument, NULL, 'f' }, | |
4569 | { "wtmp-only", no_argument, NULL, 'w' }, | |
4570 | { "no-wtmp", no_argument, NULL, 'd' }, | |
4571 | { "no-sync", no_argument, NULL, 'n' }, | |
4572 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4573 | { NULL, 0, NULL, 0 } | |
4574 | }; | |
4575 | ||
4576 | int c, runlevel; | |
4577 | ||
4578 | assert(argc >= 0); | |
4579 | assert(argv); | |
4580 | ||
4581 | if (utmp_get_runlevel(&runlevel, NULL) >= 0) | |
4582 | if (runlevel == '0' || runlevel == '6') | |
4583 | arg_force = 2; | |
4584 | ||
4585 | while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) { | |
4586 | switch (c) { | |
4587 | ||
4588 | case ARG_HELP: | |
4589 | halt_help(); | |
4590 | return 0; | |
4591 | ||
4592 | case ARG_HALT: | |
4593 | arg_action = ACTION_HALT; | |
4594 | break; | |
4595 | ||
4596 | case 'p': | |
4597 | if (arg_action != ACTION_REBOOT) | |
4598 | arg_action = ACTION_POWEROFF; | |
4599 | break; | |
4600 | ||
4601 | case ARG_REBOOT: | |
4602 | arg_action = ACTION_REBOOT; | |
4603 | break; | |
4604 | ||
4605 | case 'f': | |
4606 | arg_force = 2; | |
4607 | break; | |
4608 | ||
4609 | case 'w': | |
4610 | arg_dry = true; | |
4611 | break; | |
4612 | ||
4613 | case 'd': | |
4614 | arg_no_wtmp = true; | |
4615 | break; | |
4616 | ||
4617 | case 'n': | |
4618 | arg_no_sync = true; | |
4619 | break; | |
4620 | ||
4621 | case ARG_NO_WALL: | |
4622 | arg_no_wall = true; | |
4623 | break; | |
4624 | ||
4625 | case 'i': | |
4626 | case 'h': | |
4627 | /* Compatibility nops */ | |
4628 | break; | |
4629 | ||
4630 | case '?': | |
4631 | return -EINVAL; | |
4632 | ||
4633 | default: | |
4634 | log_error("Unknown option code %c", c); | |
4635 | return -EINVAL; | |
4636 | } | |
4637 | } | |
4638 | ||
4639 | if (optind < argc) { | |
4640 | log_error("Too many arguments."); | |
4641 | return -EINVAL; | |
4642 | } | |
4643 | ||
4644 | return 1; | |
4645 | } | |
4646 | ||
4647 | static int parse_time_spec(const char *t, usec_t *_u) { | |
4648 | assert(t); | |
4649 | assert(_u); | |
4650 | ||
4651 | if (streq(t, "now")) | |
4652 | *_u = 0; | |
4653 | else if (!strchr(t, ':')) { | |
4654 | uint64_t u; | |
4655 | ||
4656 | if (safe_atou64(t, &u) < 0) | |
4657 | return -EINVAL; | |
4658 | ||
4659 | *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u; | |
4660 | } else { | |
4661 | char *e = NULL; | |
4662 | long hour, minute; | |
4663 | struct tm tm; | |
4664 | time_t s; | |
4665 | usec_t n; | |
4666 | ||
4667 | errno = 0; | |
4668 | hour = strtol(t, &e, 10); | |
4669 | if (errno != 0 || *e != ':' || hour < 0 || hour > 23) | |
4670 | return -EINVAL; | |
4671 | ||
4672 | minute = strtol(e+1, &e, 10); | |
4673 | if (errno != 0 || *e != 0 || minute < 0 || minute > 59) | |
4674 | return -EINVAL; | |
4675 | ||
4676 | n = now(CLOCK_REALTIME); | |
4677 | s = (time_t) (n / USEC_PER_SEC); | |
4678 | ||
4679 | zero(tm); | |
4680 | assert_se(localtime_r(&s, &tm)); | |
4681 | ||
4682 | tm.tm_hour = (int) hour; | |
4683 | tm.tm_min = (int) minute; | |
4684 | tm.tm_sec = 0; | |
4685 | ||
4686 | assert_se(s = mktime(&tm)); | |
4687 | ||
4688 | *_u = (usec_t) s * USEC_PER_SEC; | |
4689 | ||
4690 | while (*_u <= n) | |
4691 | *_u += USEC_PER_DAY; | |
4692 | } | |
4693 | ||
4694 | return 0; | |
4695 | } | |
4696 | ||
4697 | static int shutdown_parse_argv(int argc, char *argv[]) { | |
4698 | ||
4699 | enum { | |
4700 | ARG_HELP = 0x100, | |
4701 | ARG_NO_WALL | |
4702 | }; | |
4703 | ||
4704 | static const struct option options[] = { | |
4705 | { "help", no_argument, NULL, ARG_HELP }, | |
4706 | { "halt", no_argument, NULL, 'H' }, | |
4707 | { "poweroff", no_argument, NULL, 'P' }, | |
4708 | { "reboot", no_argument, NULL, 'r' }, | |
4709 | { "kexec", no_argument, NULL, 'K' }, /* not documented extension */ | |
4710 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4711 | { NULL, 0, NULL, 0 } | |
4712 | }; | |
4713 | ||
4714 | int c, r; | |
4715 | ||
4716 | assert(argc >= 0); | |
4717 | assert(argv); | |
4718 | ||
4719 | while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) { | |
4720 | switch (c) { | |
4721 | ||
4722 | case ARG_HELP: | |
4723 | shutdown_help(); | |
4724 | return 0; | |
4725 | ||
4726 | case 'H': | |
4727 | arg_action = ACTION_HALT; | |
4728 | break; | |
4729 | ||
4730 | case 'P': | |
4731 | arg_action = ACTION_POWEROFF; | |
4732 | break; | |
4733 | ||
4734 | case 'r': | |
4735 | if (kexec_loaded()) | |
4736 | arg_action = ACTION_KEXEC; | |
4737 | else | |
4738 | arg_action = ACTION_REBOOT; | |
4739 | break; | |
4740 | ||
4741 | case 'K': | |
4742 | arg_action = ACTION_KEXEC; | |
4743 | break; | |
4744 | ||
4745 | case 'h': | |
4746 | if (arg_action != ACTION_HALT) | |
4747 | arg_action = ACTION_POWEROFF; | |
4748 | break; | |
4749 | ||
4750 | case 'k': | |
4751 | arg_dry = true; | |
4752 | break; | |
4753 | ||
4754 | case ARG_NO_WALL: | |
4755 | arg_no_wall = true; | |
4756 | break; | |
4757 | ||
4758 | case 't': | |
4759 | case 'a': | |
4760 | /* Compatibility nops */ | |
4761 | break; | |
4762 | ||
4763 | case 'c': | |
4764 | arg_action = ACTION_CANCEL_SHUTDOWN; | |
4765 | break; | |
4766 | ||
4767 | case '?': | |
4768 | return -EINVAL; | |
4769 | ||
4770 | default: | |
4771 | log_error("Unknown option code %c", c); | |
4772 | return -EINVAL; | |
4773 | } | |
4774 | } | |
4775 | ||
4776 | if (argc > optind) { | |
4777 | r = parse_time_spec(argv[optind], &arg_when); | |
4778 | if (r < 0) { | |
4779 | log_error("Failed to parse time specification: %s", argv[optind]); | |
4780 | return r; | |
4781 | } | |
4782 | } else | |
4783 | arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE; | |
4784 | ||
4785 | /* We skip the time argument */ | |
4786 | if (argc > optind + 1) | |
4787 | arg_wall = argv + optind + 1; | |
4788 | ||
4789 | optind = argc; | |
4790 | ||
4791 | return 1; | |
4792 | } | |
4793 | ||
4794 | static int telinit_parse_argv(int argc, char *argv[]) { | |
4795 | ||
4796 | enum { | |
4797 | ARG_HELP = 0x100, | |
4798 | ARG_NO_WALL | |
4799 | }; | |
4800 | ||
4801 | static const struct option options[] = { | |
4802 | { "help", no_argument, NULL, ARG_HELP }, | |
4803 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4804 | { NULL, 0, NULL, 0 } | |
4805 | }; | |
4806 | ||
4807 | static const struct { | |
4808 | char from; | |
4809 | enum action to; | |
4810 | } table[] = { | |
4811 | { '0', ACTION_POWEROFF }, | |
4812 | { '6', ACTION_REBOOT }, | |
4813 | { '1', ACTION_RESCUE }, | |
4814 | { '2', ACTION_RUNLEVEL2 }, | |
4815 | { '3', ACTION_RUNLEVEL3 }, | |
4816 | { '4', ACTION_RUNLEVEL4 }, | |
4817 | { '5', ACTION_RUNLEVEL5 }, | |
4818 | { 's', ACTION_RESCUE }, | |
4819 | { 'S', ACTION_RESCUE }, | |
4820 | { 'q', ACTION_RELOAD }, | |
4821 | { 'Q', ACTION_RELOAD }, | |
4822 | { 'u', ACTION_REEXEC }, | |
4823 | { 'U', ACTION_REEXEC } | |
4824 | }; | |
4825 | ||
4826 | unsigned i; | |
4827 | int c; | |
4828 | ||
4829 | assert(argc >= 0); | |
4830 | assert(argv); | |
4831 | ||
4832 | while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) { | |
4833 | switch (c) { | |
4834 | ||
4835 | case ARG_HELP: | |
4836 | telinit_help(); | |
4837 | return 0; | |
4838 | ||
4839 | case ARG_NO_WALL: | |
4840 | arg_no_wall = true; | |
4841 | break; | |
4842 | ||
4843 | case '?': | |
4844 | return -EINVAL; | |
4845 | ||
4846 | default: | |
4847 | log_error("Unknown option code %c", c); | |
4848 | return -EINVAL; | |
4849 | } | |
4850 | } | |
4851 | ||
4852 | if (optind >= argc) { | |
4853 | telinit_help(); | |
4854 | return -EINVAL; | |
4855 | } | |
4856 | ||
4857 | if (optind + 1 < argc) { | |
4858 | log_error("Too many arguments."); | |
4859 | return -EINVAL; | |
4860 | } | |
4861 | ||
4862 | if (strlen(argv[optind]) != 1) { | |
4863 | log_error("Expected single character argument."); | |
4864 | return -EINVAL; | |
4865 | } | |
4866 | ||
4867 | for (i = 0; i < ELEMENTSOF(table); i++) | |
4868 | if (table[i].from == argv[optind][0]) | |
4869 | break; | |
4870 | ||
4871 | if (i >= ELEMENTSOF(table)) { | |
4872 | log_error("Unknown command %s.", argv[optind]); | |
4873 | return -EINVAL; | |
4874 | } | |
4875 | ||
4876 | arg_action = table[i].to; | |
4877 | ||
4878 | optind ++; | |
4879 | ||
4880 | return 1; | |
4881 | } | |
4882 | ||
4883 | static int runlevel_parse_argv(int argc, char *argv[]) { | |
4884 | ||
4885 | enum { | |
4886 | ARG_HELP = 0x100, | |
4887 | }; | |
4888 | ||
4889 | static const struct option options[] = { | |
4890 | { "help", no_argument, NULL, ARG_HELP }, | |
4891 | { NULL, 0, NULL, 0 } | |
4892 | }; | |
4893 | ||
4894 | int c; | |
4895 | ||
4896 | assert(argc >= 0); | |
4897 | assert(argv); | |
4898 | ||
4899 | while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) { | |
4900 | switch (c) { | |
4901 | ||
4902 | case ARG_HELP: | |
4903 | runlevel_help(); | |
4904 | return 0; | |
4905 | ||
4906 | case '?': | |
4907 | return -EINVAL; | |
4908 | ||
4909 | default: | |
4910 | log_error("Unknown option code %c", c); | |
4911 | return -EINVAL; | |
4912 | } | |
4913 | } | |
4914 | ||
4915 | if (optind < argc) { | |
4916 | log_error("Too many arguments."); | |
4917 | return -EINVAL; | |
4918 | } | |
4919 | ||
4920 | return 1; | |
4921 | } | |
4922 | ||
4923 | static int parse_argv(int argc, char *argv[]) { | |
4924 | assert(argc >= 0); | |
4925 | assert(argv); | |
4926 | ||
4927 | if (program_invocation_short_name) { | |
4928 | ||
4929 | if (strstr(program_invocation_short_name, "halt")) { | |
4930 | arg_action = ACTION_HALT; | |
4931 | return halt_parse_argv(argc, argv); | |
4932 | } else if (strstr(program_invocation_short_name, "poweroff")) { | |
4933 | arg_action = ACTION_POWEROFF; | |
4934 | return halt_parse_argv(argc, argv); | |
4935 | } else if (strstr(program_invocation_short_name, "reboot")) { | |
4936 | if (kexec_loaded()) | |
4937 | arg_action = ACTION_KEXEC; | |
4938 | else | |
4939 | arg_action = ACTION_REBOOT; | |
4940 | return halt_parse_argv(argc, argv); | |
4941 | } else if (strstr(program_invocation_short_name, "shutdown")) { | |
4942 | arg_action = ACTION_POWEROFF; | |
4943 | return shutdown_parse_argv(argc, argv); | |
4944 | } else if (strstr(program_invocation_short_name, "init")) { | |
4945 | ||
4946 | if (sd_booted() > 0) { | |
4947 | arg_action = ACTION_INVALID; | |
4948 | return telinit_parse_argv(argc, argv); | |
4949 | } else { | |
4950 | /* Hmm, so some other init system is | |
4951 | * running, we need to forward this | |
4952 | * request to it. For now we simply | |
4953 | * guess that it is Upstart. */ | |
4954 | ||
4955 | execv("/lib/upstart/telinit", argv); | |
4956 | ||
4957 | log_error("Couldn't find an alternative telinit implementation to spawn."); | |
4958 | return -EIO; | |
4959 | } | |
4960 | ||
4961 | } else if (strstr(program_invocation_short_name, "runlevel")) { | |
4962 | arg_action = ACTION_RUNLEVEL; | |
4963 | return runlevel_parse_argv(argc, argv); | |
4964 | } | |
4965 | } | |
4966 | ||
4967 | arg_action = ACTION_SYSTEMCTL; | |
4968 | return systemctl_parse_argv(argc, argv); | |
4969 | } | |
4970 | ||
4971 | static int action_to_runlevel(void) { | |
4972 | ||
4973 | static const char table[_ACTION_MAX] = { | |
4974 | [ACTION_HALT] = '0', | |
4975 | [ACTION_POWEROFF] = '0', | |
4976 | [ACTION_REBOOT] = '6', | |
4977 | [ACTION_RUNLEVEL2] = '2', | |
4978 | [ACTION_RUNLEVEL3] = '3', | |
4979 | [ACTION_RUNLEVEL4] = '4', | |
4980 | [ACTION_RUNLEVEL5] = '5', | |
4981 | [ACTION_RESCUE] = '1' | |
4982 | }; | |
4983 | ||
4984 | assert(arg_action < _ACTION_MAX); | |
4985 | ||
4986 | return table[arg_action]; | |
4987 | } | |
4988 | ||
4989 | static int talk_upstart(void) { | |
4990 | DBusMessage *m = NULL, *reply = NULL; | |
4991 | DBusError error; | |
4992 | int previous, rl, r; | |
4993 | char | |
4994 | env1_buf[] = "RUNLEVEL=X", | |
4995 | env2_buf[] = "PREVLEVEL=X"; | |
4996 | char *env1 = env1_buf, *env2 = env2_buf; | |
4997 | const char *emit = "runlevel"; | |
4998 | dbus_bool_t b_false = FALSE; | |
4999 | DBusMessageIter iter, sub; | |
5000 | DBusConnection *bus; | |
5001 | ||
5002 | dbus_error_init(&error); | |
5003 | ||
5004 | if (!(rl = action_to_runlevel())) | |
5005 | return 0; | |
5006 | ||
5007 | if (utmp_get_runlevel(&previous, NULL) < 0) | |
5008 | previous = 'N'; | |
5009 | ||
5010 | if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) { | |
5011 | if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) { | |
5012 | r = 0; | |
5013 | goto finish; | |
5014 | } | |
5015 | ||
5016 | log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error)); | |
5017 | r = -EIO; | |
5018 | goto finish; | |
5019 | } | |
5020 | ||
5021 | if ((r = bus_check_peercred(bus)) < 0) { | |
5022 | log_error("Failed to verify owner of bus."); | |
5023 | goto finish; | |
5024 | } | |
5025 | ||
5026 | if (!(m = dbus_message_new_method_call( | |
5027 | "com.ubuntu.Upstart", | |
5028 | "/com/ubuntu/Upstart", | |
5029 | "com.ubuntu.Upstart0_6", | |
5030 | "EmitEvent"))) { | |
5031 | ||
5032 | log_error("Could not allocate message."); | |
5033 | r = -ENOMEM; | |
5034 | goto finish; | |
5035 | } | |
5036 | ||
5037 | dbus_message_iter_init_append(m, &iter); | |
5038 | ||
5039 | env1_buf[sizeof(env1_buf)-2] = rl; | |
5040 | env2_buf[sizeof(env2_buf)-2] = previous; | |
5041 | ||
5042 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) || | |
5043 | !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) || | |
5044 | !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) || | |
5045 | !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) || | |
5046 | !dbus_message_iter_close_container(&iter, &sub) || | |
5047 | !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) { | |
5048 | log_error("Could not append arguments to message."); | |
5049 | r = -ENOMEM; | |
5050 | goto finish; | |
5051 | } | |
5052 | ||
5053 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
5054 | ||
5055 | if (error_is_no_service(&error)) { | |
5056 | r = -EADDRNOTAVAIL; | |
5057 | goto finish; | |
5058 | } | |
5059 | ||
5060 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
5061 | r = -EIO; | |
5062 | goto finish; | |
5063 | } | |
5064 | ||
5065 | r = 1; | |
5066 | ||
5067 | finish: | |
5068 | if (m) | |
5069 | dbus_message_unref(m); | |
5070 | ||
5071 | if (reply) | |
5072 | dbus_message_unref(reply); | |
5073 | ||
5074 | if (bus) { | |
5075 | dbus_connection_flush(bus); | |
5076 | dbus_connection_close(bus); | |
5077 | dbus_connection_unref(bus); | |
5078 | } | |
5079 | ||
5080 | dbus_error_free(&error); | |
5081 | ||
5082 | return r; | |
5083 | } | |
5084 | ||
5085 | static int talk_initctl(void) { | |
5086 | struct init_request request; | |
5087 | int r, fd; | |
5088 | char rl; | |
5089 | ||
5090 | if (!(rl = action_to_runlevel())) | |
5091 | return 0; | |
5092 | ||
5093 | zero(request); | |
5094 | request.magic = INIT_MAGIC; | |
5095 | request.sleeptime = 0; | |
5096 | request.cmd = INIT_CMD_RUNLVL; | |
5097 | request.runlevel = rl; | |
5098 | ||
5099 | if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) { | |
5100 | ||
5101 | if (errno == ENOENT) | |
5102 | return 0; | |
5103 | ||
5104 | log_error("Failed to open "INIT_FIFO": %m"); | |
5105 | return -errno; | |
5106 | } | |
5107 | ||
5108 | errno = 0; | |
5109 | r = loop_write(fd, &request, sizeof(request), false) != sizeof(request); | |
5110 | close_nointr_nofail(fd); | |
5111 | ||
5112 | if (r < 0) { | |
5113 | log_error("Failed to write to "INIT_FIFO": %m"); | |
5114 | return errno ? -errno : -EIO; | |
5115 | } | |
5116 | ||
5117 | return 1; | |
5118 | } | |
5119 | ||
5120 | static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) { | |
5121 | ||
5122 | static const struct { | |
5123 | const char* verb; | |
5124 | const enum { | |
5125 | MORE, | |
5126 | LESS, | |
5127 | EQUAL | |
5128 | } argc_cmp; | |
5129 | const int argc; | |
5130 | int (* const dispatch)(DBusConnection *bus, char **args); | |
5131 | } verbs[] = { | |
5132 | { "list-units", LESS, 1, list_units }, | |
5133 | { "list-unit-files", EQUAL, 1, list_unit_files }, | |
5134 | { "list-jobs", EQUAL, 1, list_jobs }, | |
5135 | { "clear-jobs", EQUAL, 1, daemon_reload }, | |
5136 | { "load", MORE, 2, load_unit }, | |
5137 | { "cancel", MORE, 2, cancel_job }, | |
5138 | { "start", MORE, 2, start_unit }, | |
5139 | { "stop", MORE, 2, start_unit }, | |
5140 | { "condstop", MORE, 2, start_unit }, /* For compatibility with ALTLinux */ | |
5141 | { "reload", MORE, 2, start_unit }, | |
5142 | { "restart", MORE, 2, start_unit }, | |
5143 | { "try-restart", MORE, 2, start_unit }, | |
5144 | { "reload-or-restart", MORE, 2, start_unit }, | |
5145 | { "reload-or-try-restart", MORE, 2, start_unit }, | |
5146 | { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */ | |
5147 | { "condreload", MORE, 2, start_unit }, /* For compatibility with ALTLinux */ | |
5148 | { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */ | |
5149 | { "isolate", EQUAL, 2, start_unit }, | |
5150 | { "kill", MORE, 2, kill_unit }, | |
5151 | { "is-active", MORE, 2, check_unit }, | |
5152 | { "check", MORE, 2, check_unit }, | |
5153 | { "show", MORE, 1, show }, | |
5154 | { "status", MORE, 2, show }, | |
5155 | { "dump", EQUAL, 1, dump }, | |
5156 | { "dot", EQUAL, 1, dot }, | |
5157 | { "snapshot", LESS, 2, snapshot }, | |
5158 | { "delete", MORE, 2, delete_snapshot }, | |
5159 | { "daemon-reload", EQUAL, 1, daemon_reload }, | |
5160 | { "daemon-reexec", EQUAL, 1, daemon_reload }, | |
5161 | { "show-environment", EQUAL, 1, show_enviroment }, | |
5162 | { "set-environment", MORE, 2, set_environment }, | |
5163 | { "unset-environment", MORE, 2, set_environment }, | |
5164 | { "halt", EQUAL, 1, start_special }, | |
5165 | { "poweroff", EQUAL, 1, start_special }, | |
5166 | { "reboot", EQUAL, 1, start_special }, | |
5167 | { "kexec", EQUAL, 1, start_special }, | |
5168 | { "suspend", EQUAL, 1, start_special }, | |
5169 | { "hibernate", EQUAL, 1, start_special }, | |
5170 | { "default", EQUAL, 1, start_special }, | |
5171 | { "rescue", EQUAL, 1, start_special }, | |
5172 | { "emergency", EQUAL, 1, start_special }, | |
5173 | { "exit", EQUAL, 1, start_special }, | |
5174 | { "reset-failed", MORE, 1, reset_failed }, | |
5175 | { "enable", MORE, 2, enable_unit }, | |
5176 | { "disable", MORE, 2, enable_unit }, | |
5177 | { "is-enabled", MORE, 2, unit_is_enabled }, | |
5178 | { "reenable", MORE, 2, enable_unit }, | |
5179 | { "preset", MORE, 2, enable_unit }, | |
5180 | { "mask", MORE, 2, enable_unit }, | |
5181 | { "unmask", MORE, 2, enable_unit }, | |
5182 | { "link", MORE, 2, enable_unit }, | |
5183 | { "switch-root", MORE, 2, switch_root }, | |
5184 | }; | |
5185 | ||
5186 | int left; | |
5187 | unsigned i; | |
5188 | ||
5189 | assert(argc >= 0); | |
5190 | assert(argv); | |
5191 | assert(error); | |
5192 | ||
5193 | left = argc - optind; | |
5194 | ||
5195 | if (left <= 0) | |
5196 | /* Special rule: no arguments means "list-units" */ | |
5197 | i = 0; | |
5198 | else { | |
5199 | if (streq(argv[optind], "help")) { | |
5200 | systemctl_help(); | |
5201 | return 0; | |
5202 | } | |
5203 | ||
5204 | for (i = 0; i < ELEMENTSOF(verbs); i++) | |
5205 | if (streq(argv[optind], verbs[i].verb)) | |
5206 | break; | |
5207 | ||
5208 | if (i >= ELEMENTSOF(verbs)) { | |
5209 | log_error("Unknown operation %s", argv[optind]); | |
5210 | return -EINVAL; | |
5211 | } | |
5212 | } | |
5213 | ||
5214 | switch (verbs[i].argc_cmp) { | |
5215 | ||
5216 | case EQUAL: | |
5217 | if (left != verbs[i].argc) { | |
5218 | log_error("Invalid number of arguments."); | |
5219 | return -EINVAL; | |
5220 | } | |
5221 | ||
5222 | break; | |
5223 | ||
5224 | case MORE: | |
5225 | if (left < verbs[i].argc) { | |
5226 | log_error("Too few arguments."); | |
5227 | return -EINVAL; | |
5228 | } | |
5229 | ||
5230 | break; | |
5231 | ||
5232 | case LESS: | |
5233 | if (left > verbs[i].argc) { | |
5234 | log_error("Too many arguments."); | |
5235 | return -EINVAL; | |
5236 | } | |
5237 | ||
5238 | break; | |
5239 | ||
5240 | default: | |
5241 | assert_not_reached("Unknown comparison operator."); | |
5242 | } | |
5243 | ||
5244 | /* Require a bus connection for all operations but | |
5245 | * enable/disable */ | |
5246 | if (!streq(verbs[i].verb, "enable") && | |
5247 | !streq(verbs[i].verb, "disable") && | |
5248 | !streq(verbs[i].verb, "is-enabled") && | |
5249 | !streq(verbs[i].verb, "list-unit-files") && | |
5250 | !streq(verbs[i].verb, "reenable") && | |
5251 | !streq(verbs[i].verb, "preset") && | |
5252 | !streq(verbs[i].verb, "mask") && | |
5253 | !streq(verbs[i].verb, "unmask") && | |
5254 | !streq(verbs[i].verb, "link")) { | |
5255 | ||
5256 | if (running_in_chroot() > 0) { | |
5257 | log_info("Running in chroot, ignoring request."); | |
5258 | return 0; | |
5259 | } | |
5260 | ||
5261 | if (((!streq(verbs[i].verb, "reboot") && | |
5262 | !streq(verbs[i].verb, "halt") && | |
5263 | !streq(verbs[i].verb, "poweroff")) || arg_force <= 0) && !bus) { | |
5264 | log_error("Failed to get D-Bus connection: %s", | |
5265 | dbus_error_is_set(error) ? error->message : "No connection to service manager."); | |
5266 | return -EIO; | |
5267 | } | |
5268 | ||
5269 | } else { | |
5270 | ||
5271 | if (!bus && !avoid_bus()) { | |
5272 | log_error("Failed to get D-Bus connection: %s", | |
5273 | dbus_error_is_set(error) ? error->message : "No connection to service manager."); | |
5274 | return -EIO; | |
5275 | } | |
5276 | } | |
5277 | ||
5278 | return verbs[i].dispatch(bus, argv + optind); | |
5279 | } | |
5280 | ||
5281 | static int send_shutdownd(usec_t t, char mode, bool dry_run, bool warn, const char *message) { | |
5282 | int fd; | |
5283 | struct msghdr msghdr; | |
5284 | struct iovec iovec[2]; | |
5285 | union sockaddr_union sockaddr; | |
5286 | struct sd_shutdown_command c; | |
5287 | ||
5288 | fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0); | |
5289 | if (fd < 0) | |
5290 | return -errno; | |
5291 | ||
5292 | zero(c); | |
5293 | c.usec = t; | |
5294 | c.mode = mode; | |
5295 | c.dry_run = dry_run; | |
5296 | c.warn_wall = warn; | |
5297 | ||
5298 | zero(sockaddr); | |
5299 | sockaddr.sa.sa_family = AF_UNIX; | |
5300 | strncpy(sockaddr.un.sun_path, "/run/systemd/shutdownd", sizeof(sockaddr.un.sun_path)); | |
5301 | ||
5302 | zero(msghdr); | |
5303 | msghdr.msg_name = &sockaddr; | |
5304 | msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + sizeof("/run/systemd/shutdownd") - 1; | |
5305 | ||
5306 | zero(iovec); | |
5307 | iovec[0].iov_base = (char*) &c; | |
5308 | iovec[0].iov_len = offsetof(struct sd_shutdown_command, wall_message); | |
5309 | ||
5310 | if (isempty(message)) | |
5311 | msghdr.msg_iovlen = 1; | |
5312 | else { | |
5313 | iovec[1].iov_base = (char*) message; | |
5314 | iovec[1].iov_len = strlen(message); | |
5315 | msghdr.msg_iovlen = 2; | |
5316 | } | |
5317 | msghdr.msg_iov = iovec; | |
5318 | ||
5319 | if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { | |
5320 | close_nointr_nofail(fd); | |
5321 | return -errno; | |
5322 | } | |
5323 | ||
5324 | close_nointr_nofail(fd); | |
5325 | return 0; | |
5326 | } | |
5327 | ||
5328 | static int reload_with_fallback(DBusConnection *bus) { | |
5329 | ||
5330 | if (bus) { | |
5331 | /* First, try systemd via D-Bus. */ | |
5332 | if (daemon_reload(bus, NULL) >= 0) | |
5333 | return 0; | |
5334 | } | |
5335 | ||
5336 | /* Nothing else worked, so let's try signals */ | |
5337 | assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC); | |
5338 | ||
5339 | if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) { | |
5340 | log_error("kill() failed: %m"); | |
5341 | return -errno; | |
5342 | } | |
5343 | ||
5344 | return 0; | |
5345 | } | |
5346 | ||
5347 | static int start_with_fallback(DBusConnection *bus) { | |
5348 | ||
5349 | if (bus) { | |
5350 | /* First, try systemd via D-Bus. */ | |
5351 | if (start_unit(bus, NULL) >= 0) | |
5352 | goto done; | |
5353 | } | |
5354 | ||
5355 | /* Hmm, talking to systemd via D-Bus didn't work. Then | |
5356 | * let's try to talk to Upstart via D-Bus. */ | |
5357 | if (talk_upstart() > 0) | |
5358 | goto done; | |
5359 | ||
5360 | /* Nothing else worked, so let's try | |
5361 | * /dev/initctl */ | |
5362 | if (talk_initctl() > 0) | |
5363 | goto done; | |
5364 | ||
5365 | log_error("Failed to talk to init daemon."); | |
5366 | return -EIO; | |
5367 | ||
5368 | done: | |
5369 | warn_wall(arg_action); | |
5370 | return 0; | |
5371 | } | |
5372 | ||
5373 | static void halt_now(enum action a) { | |
5374 | ||
5375 | /* Make sure C-A-D is handled by the kernel from this | |
5376 | * point on... */ | |
5377 | reboot(RB_ENABLE_CAD); | |
5378 | ||
5379 | switch (a) { | |
5380 | ||
5381 | case ACTION_HALT: | |
5382 | log_info("Halting."); | |
5383 | reboot(RB_HALT_SYSTEM); | |
5384 | break; | |
5385 | ||
5386 | case ACTION_POWEROFF: | |
5387 | log_info("Powering off."); | |
5388 | reboot(RB_POWER_OFF); | |
5389 | break; | |
5390 | ||
5391 | case ACTION_REBOOT: | |
5392 | log_info("Rebooting."); | |
5393 | reboot(RB_AUTOBOOT); | |
5394 | break; | |
5395 | ||
5396 | default: | |
5397 | assert_not_reached("Unknown halt action."); | |
5398 | } | |
5399 | ||
5400 | assert_not_reached("Uh? This shouldn't happen."); | |
5401 | } | |
5402 | ||
5403 | static int halt_main(DBusConnection *bus) { | |
5404 | int r; | |
5405 | ||
5406 | if (geteuid() != 0) { | |
5407 | /* Try logind if we are a normal user and no special | |
5408 | * mode applies. Maybe PolicyKit allows us to shutdown | |
5409 | * the machine. */ | |
5410 | ||
5411 | if (arg_when <= 0 && | |
5412 | !arg_dry && | |
5413 | !arg_force && | |
5414 | (arg_action == ACTION_POWEROFF || | |
5415 | arg_action == ACTION_REBOOT)) { | |
5416 | r = reboot_with_logind(bus, arg_action); | |
5417 | if (r >= 0) | |
5418 | return r; | |
5419 | } | |
5420 | ||
5421 | log_error("Must be root."); | |
5422 | return -EPERM; | |
5423 | } | |
5424 | ||
5425 | if (arg_when > 0) { | |
5426 | char *m; | |
5427 | ||
5428 | m = strv_join(arg_wall, " "); | |
5429 | r = send_shutdownd(arg_when, | |
5430 | arg_action == ACTION_HALT ? 'H' : | |
5431 | arg_action == ACTION_POWEROFF ? 'P' : | |
5432 | arg_action == ACTION_KEXEC ? 'K' : | |
5433 | 'r', | |
5434 | arg_dry, | |
5435 | !arg_no_wall, | |
5436 | m); | |
5437 | free(m); | |
5438 | ||
5439 | if (r < 0) | |
5440 | log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r)); | |
5441 | else { | |
5442 | char date[FORMAT_TIMESTAMP_MAX]; | |
5443 | ||
5444 | log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", | |
5445 | format_timestamp(date, sizeof(date), arg_when)); | |
5446 | return 0; | |
5447 | } | |
5448 | } | |
5449 | ||
5450 | if (!arg_dry && !arg_force) | |
5451 | return start_with_fallback(bus); | |
5452 | ||
5453 | if (!arg_no_wtmp) { | |
5454 | if (sd_booted() > 0) | |
5455 | log_debug("Not writing utmp record, assuming that systemd-update-utmp is used."); | |
5456 | else { | |
5457 | r = utmp_put_shutdown(); | |
5458 | if (r < 0) | |
5459 | log_warning("Failed to write utmp record: %s", strerror(-r)); | |
5460 | } | |
5461 | } | |
5462 | ||
5463 | if (!arg_no_sync) | |
5464 | sync(); | |
5465 | ||
5466 | if (arg_dry) | |
5467 | return 0; | |
5468 | ||
5469 | halt_now(arg_action); | |
5470 | /* We should never reach this. */ | |
5471 | return -ENOSYS; | |
5472 | } | |
5473 | ||
5474 | static int runlevel_main(void) { | |
5475 | int r, runlevel, previous; | |
5476 | ||
5477 | r = utmp_get_runlevel(&runlevel, &previous); | |
5478 | if (r < 0) { | |
5479 | puts("unknown"); | |
5480 | return r; | |
5481 | } | |
5482 | ||
5483 | printf("%c %c\n", | |
5484 | previous <= 0 ? 'N' : previous, | |
5485 | runlevel <= 0 ? 'N' : runlevel); | |
5486 | ||
5487 | return 0; | |
5488 | } | |
5489 | ||
5490 | int main(int argc, char*argv[]) { | |
5491 | int r, retval = EXIT_FAILURE; | |
5492 | DBusConnection *bus = NULL; | |
5493 | DBusError error; | |
5494 | ||
5495 | dbus_error_init(&error); | |
5496 | ||
5497 | log_parse_environment(); | |
5498 | log_open(); | |
5499 | ||
5500 | r = parse_argv(argc, argv); | |
5501 | if (r < 0) | |
5502 | goto finish; | |
5503 | else if (r == 0) { | |
5504 | retval = EXIT_SUCCESS; | |
5505 | goto finish; | |
5506 | } | |
5507 | ||
5508 | /* /sbin/runlevel doesn't need to communicate via D-Bus, so | |
5509 | * let's shortcut this */ | |
5510 | if (arg_action == ACTION_RUNLEVEL) { | |
5511 | r = runlevel_main(); | |
5512 | retval = r < 0 ? EXIT_FAILURE : r; | |
5513 | goto finish; | |
5514 | } | |
5515 | ||
5516 | if (running_in_chroot() > 0 && arg_action != ACTION_SYSTEMCTL) { | |
5517 | log_info("Running in chroot, ignoring request."); | |
5518 | retval = 0; | |
5519 | goto finish; | |
5520 | } | |
5521 | ||
5522 | if (!avoid_bus()) { | |
5523 | if (arg_transport == TRANSPORT_NORMAL) | |
5524 | bus_connect(arg_scope == UNIT_FILE_SYSTEM ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &bus, &private_bus, &error); | |
5525 | else if (arg_transport == TRANSPORT_POLKIT) { | |
5526 | bus_connect_system_polkit(&bus, &error); | |
5527 | private_bus = false; | |
5528 | } else if (arg_transport == TRANSPORT_SSH) { | |
5529 | bus_connect_system_ssh(NULL, arg_host, &bus, &error); | |
5530 | private_bus = false; | |
5531 | } else | |
5532 | assert_not_reached("Uh, invalid transport..."); | |
5533 | } | |
5534 | ||
5535 | switch (arg_action) { | |
5536 | ||
5537 | case ACTION_SYSTEMCTL: | |
5538 | r = systemctl_main(bus, argc, argv, &error); | |
5539 | break; | |
5540 | ||
5541 | case ACTION_HALT: | |
5542 | case ACTION_POWEROFF: | |
5543 | case ACTION_REBOOT: | |
5544 | case ACTION_KEXEC: | |
5545 | r = halt_main(bus); | |
5546 | break; | |
5547 | ||
5548 | case ACTION_RUNLEVEL2: | |
5549 | case ACTION_RUNLEVEL3: | |
5550 | case ACTION_RUNLEVEL4: | |
5551 | case ACTION_RUNLEVEL5: | |
5552 | case ACTION_RESCUE: | |
5553 | case ACTION_EMERGENCY: | |
5554 | case ACTION_DEFAULT: | |
5555 | r = start_with_fallback(bus); | |
5556 | break; | |
5557 | ||
5558 | case ACTION_RELOAD: | |
5559 | case ACTION_REEXEC: | |
5560 | r = reload_with_fallback(bus); | |
5561 | break; | |
5562 | ||
5563 | case ACTION_CANCEL_SHUTDOWN: | |
5564 | r = send_shutdownd(0, 0, false, false, NULL); | |
5565 | break; | |
5566 | ||
5567 | case ACTION_INVALID: | |
5568 | case ACTION_RUNLEVEL: | |
5569 | default: | |
5570 | assert_not_reached("Unknown action"); | |
5571 | } | |
5572 | ||
5573 | retval = r < 0 ? EXIT_FAILURE : r; | |
5574 | ||
5575 | finish: | |
5576 | if (bus) { | |
5577 | dbus_connection_flush(bus); | |
5578 | dbus_connection_close(bus); | |
5579 | dbus_connection_unref(bus); | |
5580 | } | |
5581 | ||
5582 | dbus_error_free(&error); | |
5583 | ||
5584 | dbus_shutdown(); | |
5585 | ||
5586 | strv_free(arg_property); | |
5587 | ||
5588 | pager_close(); | |
5589 | ask_password_agent_close(); | |
5590 | polkit_agent_close(); | |
5591 | ||
5592 | return retval; | |
5593 | } |