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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 General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
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 | ||
37 | #include <dbus/dbus.h> | |
38 | ||
39 | #include "log.h" | |
40 | #include "util.h" | |
41 | #include "macro.h" | |
42 | #include "set.h" | |
43 | #include "utmp-wtmp.h" | |
44 | #include "special.h" | |
45 | #include "initreq.h" | |
46 | #include "strv.h" | |
47 | #include "dbus-common.h" | |
48 | #include "cgroup-show.h" | |
49 | #include "cgroup-util.h" | |
50 | #include "list.h" | |
51 | #include "path-lookup.h" | |
52 | #include "conf-parser.h" | |
53 | #include "sd-daemon.h" | |
54 | #include "shutdownd.h" | |
55 | #include "exit-status.h" | |
56 | #include "bus-errors.h" | |
57 | #include "build.h" | |
58 | #include "unit-name.h" | |
59 | ||
60 | static const char *arg_type = NULL; | |
61 | static char **arg_property = NULL; | |
62 | static bool arg_all = false; | |
63 | static bool arg_fail = false; | |
64 | static bool arg_session = false; | |
65 | static bool arg_global = false; | |
66 | static bool arg_immediate = false; | |
67 | static bool arg_no_block = false; | |
68 | static bool arg_no_wtmp = false; | |
69 | static bool arg_no_sync = false; | |
70 | static bool arg_no_wall = false; | |
71 | static bool arg_no_reload = false; | |
72 | static bool arg_dry = false; | |
73 | static bool arg_quiet = false; | |
74 | static bool arg_full = false; | |
75 | static bool arg_force = false; | |
76 | static bool arg_defaults = false; | |
77 | static bool arg_ask_password = false; | |
78 | static char **arg_wall = NULL; | |
79 | static const char *arg_kill_who = NULL; | |
80 | static const char *arg_kill_mode = NULL; | |
81 | static int arg_signal = SIGTERM; | |
82 | static usec_t arg_when = 0; | |
83 | static enum action { | |
84 | ACTION_INVALID, | |
85 | ACTION_SYSTEMCTL, | |
86 | ACTION_HALT, | |
87 | ACTION_POWEROFF, | |
88 | ACTION_REBOOT, | |
89 | ACTION_KEXEC, | |
90 | ACTION_EXIT, | |
91 | ACTION_RUNLEVEL2, | |
92 | ACTION_RUNLEVEL3, | |
93 | ACTION_RUNLEVEL4, | |
94 | ACTION_RUNLEVEL5, | |
95 | ACTION_RESCUE, | |
96 | ACTION_EMERGENCY, | |
97 | ACTION_DEFAULT, | |
98 | ACTION_RELOAD, | |
99 | ACTION_REEXEC, | |
100 | ACTION_RUNLEVEL, | |
101 | ACTION_CANCEL_SHUTDOWN, | |
102 | _ACTION_MAX | |
103 | } arg_action = ACTION_SYSTEMCTL; | |
104 | static enum dot { | |
105 | DOT_ALL, | |
106 | DOT_ORDER, | |
107 | DOT_REQUIRE | |
108 | } arg_dot = DOT_ALL; | |
109 | ||
110 | static bool private_bus = false; | |
111 | ||
112 | static int daemon_reload(DBusConnection *bus, char **args, unsigned n); | |
113 | ||
114 | static bool on_tty(void) { | |
115 | static int t = -1; | |
116 | ||
117 | if (_unlikely_(t < 0)) | |
118 | t = isatty(STDOUT_FILENO) > 0; | |
119 | ||
120 | return t; | |
121 | } | |
122 | ||
123 | static void spawn_ask_password_agent(void) { | |
124 | pid_t parent, child; | |
125 | ||
126 | /* We check STDIN here, not STDOUT, since this is about input, | |
127 | * not output */ | |
128 | if (!isatty(STDIN_FILENO)) | |
129 | return; | |
130 | ||
131 | if (!arg_ask_password) | |
132 | return; | |
133 | ||
134 | parent = getpid(); | |
135 | ||
136 | /* Spawns a temporary TTY agent, making sure it goes away when | |
137 | * we go away */ | |
138 | ||
139 | if ((child = fork()) < 0) | |
140 | return; | |
141 | ||
142 | if (child == 0) { | |
143 | /* In the child */ | |
144 | ||
145 | const char * const args[] = { | |
146 | SYSTEMD_TTY_ASK_PASSWORD_AGENT_BINARY_PATH, | |
147 | "--watch", | |
148 | NULL | |
149 | }; | |
150 | ||
151 | if (prctl(PR_SET_PDEATHSIG, SIGTERM) < 0) | |
152 | _exit(EXIT_FAILURE); | |
153 | ||
154 | /* Check whether our parent died before we were able | |
155 | * to set the death signal */ | |
156 | if (getppid() != parent) | |
157 | _exit(EXIT_SUCCESS); | |
158 | ||
159 | execv(args[0], (char **) args); | |
160 | _exit(EXIT_FAILURE); | |
161 | } | |
162 | } | |
163 | ||
164 | static const char *ansi_highlight(bool b) { | |
165 | ||
166 | if (!on_tty()) | |
167 | return ""; | |
168 | ||
169 | return b ? ANSI_HIGHLIGHT_ON : ANSI_HIGHLIGHT_OFF; | |
170 | } | |
171 | ||
172 | static const char *ansi_highlight_green(bool b) { | |
173 | ||
174 | if (!on_tty()) | |
175 | return ""; | |
176 | ||
177 | return b ? ANSI_HIGHLIGHT_GREEN_ON : ANSI_HIGHLIGHT_OFF; | |
178 | } | |
179 | ||
180 | static bool error_is_no_service(const DBusError *error) { | |
181 | assert(error); | |
182 | ||
183 | if (!dbus_error_is_set(error)) | |
184 | return false; | |
185 | ||
186 | if (dbus_error_has_name(error, DBUS_ERROR_NAME_HAS_NO_OWNER)) | |
187 | return true; | |
188 | ||
189 | if (dbus_error_has_name(error, DBUS_ERROR_SERVICE_UNKNOWN)) | |
190 | return true; | |
191 | ||
192 | return startswith(error->name, "org.freedesktop.DBus.Error.Spawn."); | |
193 | } | |
194 | ||
195 | static int translate_bus_error_to_exit_status(int r, const DBusError *error) { | |
196 | assert(error); | |
197 | ||
198 | if (!dbus_error_is_set(error)) | |
199 | return r; | |
200 | ||
201 | if (dbus_error_has_name(error, DBUS_ERROR_ACCESS_DENIED) || | |
202 | dbus_error_has_name(error, BUS_ERROR_ONLY_BY_DEPENDENCY) || | |
203 | dbus_error_has_name(error, BUS_ERROR_NO_ISOLATION) || | |
204 | dbus_error_has_name(error, BUS_ERROR_TRANSACTION_IS_DESTRUCTIVE)) | |
205 | return EXIT_NOPERMISSION; | |
206 | ||
207 | if (dbus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT)) | |
208 | return EXIT_NOTINSTALLED; | |
209 | ||
210 | if (dbus_error_has_name(error, BUS_ERROR_JOB_TYPE_NOT_APPLICABLE) || | |
211 | dbus_error_has_name(error, BUS_ERROR_NOT_SUPPORTED)) | |
212 | return EXIT_NOTIMPLEMENTED; | |
213 | ||
214 | if (dbus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) | |
215 | return EXIT_NOTCONFIGURED; | |
216 | ||
217 | if (r != 0) | |
218 | return r; | |
219 | ||
220 | return EXIT_FAILURE; | |
221 | } | |
222 | ||
223 | static int bus_iter_get_basic_and_next(DBusMessageIter *iter, int type, void *data, bool next) { | |
224 | ||
225 | assert(iter); | |
226 | assert(data); | |
227 | ||
228 | if (dbus_message_iter_get_arg_type(iter) != type) | |
229 | return -EIO; | |
230 | ||
231 | dbus_message_iter_get_basic(iter, data); | |
232 | ||
233 | if (!dbus_message_iter_next(iter) != !next) | |
234 | return -EIO; | |
235 | ||
236 | return 0; | |
237 | } | |
238 | ||
239 | static void warn_wall(enum action action) { | |
240 | static const char *table[_ACTION_MAX] = { | |
241 | [ACTION_HALT] = "The system is going down for system halt NOW!", | |
242 | [ACTION_REBOOT] = "The system is going down for reboot NOW!", | |
243 | [ACTION_POWEROFF] = "The system is going down for power-off NOW!", | |
244 | [ACTION_KEXEC] = "The system is going down for kexec reboot NOW!", | |
245 | [ACTION_RESCUE] = "The system is going down to rescue mode NOW!", | |
246 | [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!" | |
247 | }; | |
248 | ||
249 | if (arg_no_wall) | |
250 | return; | |
251 | ||
252 | if (arg_wall) { | |
253 | char *p; | |
254 | ||
255 | if (!(p = strv_join(arg_wall, " "))) { | |
256 | log_error("Failed to join strings."); | |
257 | return; | |
258 | } | |
259 | ||
260 | if (*p) { | |
261 | utmp_wall(p); | |
262 | free(p); | |
263 | return; | |
264 | } | |
265 | ||
266 | free(p); | |
267 | } | |
268 | ||
269 | if (!table[action]) | |
270 | return; | |
271 | ||
272 | utmp_wall(table[action]); | |
273 | } | |
274 | ||
275 | struct unit_info { | |
276 | const char *id; | |
277 | const char *description; | |
278 | const char *load_state; | |
279 | const char *active_state; | |
280 | const char *sub_state; | |
281 | const char *following; | |
282 | const char *unit_path; | |
283 | uint32_t job_id; | |
284 | const char *job_type; | |
285 | const char *job_path; | |
286 | }; | |
287 | ||
288 | static int compare_unit_info(const void *a, const void *b) { | |
289 | const char *d1, *d2; | |
290 | const struct unit_info *u = a, *v = b; | |
291 | ||
292 | d1 = strrchr(u->id, '.'); | |
293 | d2 = strrchr(v->id, '.'); | |
294 | ||
295 | if (d1 && d2) { | |
296 | int r; | |
297 | ||
298 | if ((r = strcasecmp(d1, d2)) != 0) | |
299 | return r; | |
300 | } | |
301 | ||
302 | return strcasecmp(u->id, v->id); | |
303 | } | |
304 | ||
305 | static bool output_show_job(const struct unit_info *u) { | |
306 | const char *dot; | |
307 | ||
308 | return (!arg_type || ((dot = strrchr(u->id, '.')) && | |
309 | streq(dot+1, arg_type))) && | |
310 | (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0); | |
311 | } | |
312 | ||
313 | static void output_units_list(const struct unit_info *unit_infos, unsigned c) { | |
314 | unsigned active_len, sub_len, job_len, n_shown = 0; | |
315 | const struct unit_info *u; | |
316 | ||
317 | active_len = sizeof("ACTIVE")-1; | |
318 | sub_len = sizeof("SUB")-1; | |
319 | job_len = sizeof("JOB")-1; | |
320 | ||
321 | for (u = unit_infos; u < unit_infos + c; u++) { | |
322 | if (!output_show_job(u)) | |
323 | continue; | |
324 | ||
325 | active_len = MAX(active_len, strlen(u->active_state)); | |
326 | sub_len = MAX(sub_len, strlen(u->sub_state)); | |
327 | if (u->job_id != 0) | |
328 | job_len = MAX(job_len, strlen(u->job_type)); | |
329 | } | |
330 | ||
331 | if (on_tty()) { | |
332 | printf("%-25s %-6s %-*s %-*s %-*s", "UNIT", "LOAD", | |
333 | active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB"); | |
334 | if (columns() >= 80+12 || arg_full) | |
335 | printf(" %s\n", "DESCRIPTION"); | |
336 | else | |
337 | printf("\n"); | |
338 | } | |
339 | ||
340 | for (u = unit_infos; u < unit_infos + c; u++) { | |
341 | char *e; | |
342 | int a = 0, b = 0; | |
343 | const char *on_loaded, *off_loaded; | |
344 | const char *on_active, *off_active; | |
345 | ||
346 | if (!output_show_job(u)) | |
347 | continue; | |
348 | ||
349 | n_shown++; | |
350 | ||
351 | if (!streq(u->load_state, "loaded") && | |
352 | !streq(u->load_state, "banned")) { | |
353 | on_loaded = ansi_highlight(true); | |
354 | off_loaded = ansi_highlight(false); | |
355 | } else | |
356 | on_loaded = off_loaded = ""; | |
357 | ||
358 | if (streq(u->active_state, "failed")) { | |
359 | on_active = ansi_highlight(true); | |
360 | off_active = ansi_highlight(false); | |
361 | } else | |
362 | on_active = off_active = ""; | |
363 | ||
364 | e = arg_full ? NULL : ellipsize(u->id, 25, 33); | |
365 | ||
366 | printf("%-25s %s%-6s%s %s%-*s %-*s%s%n", | |
367 | e ? e : u->id, | |
368 | on_loaded, u->load_state, off_loaded, | |
369 | on_active, active_len, u->active_state, | |
370 | sub_len, u->sub_state, off_active, | |
371 | &a); | |
372 | ||
373 | free(e); | |
374 | ||
375 | a -= strlen(on_loaded) + strlen(off_loaded); | |
376 | a -= strlen(on_active) + strlen(off_active); | |
377 | ||
378 | if (u->job_id != 0) | |
379 | printf(" %-*s", job_len, u->job_type); | |
380 | else | |
381 | b = 1 + job_len; | |
382 | ||
383 | if (a + b + 1 < columns()) { | |
384 | if (u->job_id == 0) | |
385 | printf(" %-*s", job_len, ""); | |
386 | ||
387 | if (arg_full) | |
388 | printf(" %s", u->description); | |
389 | else | |
390 | printf(" %.*s", columns() - a - b - 1, u->description); | |
391 | } | |
392 | ||
393 | fputs("\n", stdout); | |
394 | } | |
395 | ||
396 | if (on_tty()) { | |
397 | printf("\nLOAD = Reflects whether the unit definition was properly loaded.\n" | |
398 | "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n" | |
399 | "SUB = The low-level unit activation state, values depend on unit type.\n" | |
400 | "JOB = Pending job for the unit.\n"); | |
401 | ||
402 | if (arg_all) | |
403 | printf("\n%u units listed.\n", n_shown); | |
404 | else | |
405 | printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown); | |
406 | } | |
407 | } | |
408 | ||
409 | static int list_units(DBusConnection *bus, char **args, unsigned n) { | |
410 | DBusMessage *m = NULL, *reply = NULL; | |
411 | DBusError error; | |
412 | int r; | |
413 | DBusMessageIter iter, sub, sub2; | |
414 | unsigned c = 0, n_units = 0; | |
415 | struct unit_info *unit_infos = NULL; | |
416 | ||
417 | dbus_error_init(&error); | |
418 | ||
419 | assert(bus); | |
420 | ||
421 | if (!(m = dbus_message_new_method_call( | |
422 | "org.freedesktop.systemd1", | |
423 | "/org/freedesktop/systemd1", | |
424 | "org.freedesktop.systemd1.Manager", | |
425 | "ListUnits"))) { | |
426 | log_error("Could not allocate message."); | |
427 | return -ENOMEM; | |
428 | } | |
429 | ||
430 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
431 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
432 | r = -EIO; | |
433 | goto finish; | |
434 | } | |
435 | ||
436 | if (!dbus_message_iter_init(reply, &iter) || | |
437 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
438 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
439 | log_error("Failed to parse reply."); | |
440 | r = -EIO; | |
441 | goto finish; | |
442 | } | |
443 | ||
444 | dbus_message_iter_recurse(&iter, &sub); | |
445 | ||
446 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
447 | struct unit_info *u; | |
448 | ||
449 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
450 | log_error("Failed to parse reply."); | |
451 | r = -EIO; | |
452 | goto finish; | |
453 | } | |
454 | ||
455 | if (c >= n_units) { | |
456 | struct unit_info *w; | |
457 | ||
458 | n_units = MAX(2*c, 16); | |
459 | w = realloc(unit_infos, sizeof(struct unit_info) * n_units); | |
460 | ||
461 | if (!w) { | |
462 | log_error("Failed to allocate unit array."); | |
463 | r = -ENOMEM; | |
464 | goto finish; | |
465 | } | |
466 | ||
467 | unit_infos = w; | |
468 | } | |
469 | ||
470 | u = unit_infos+c; | |
471 | ||
472 | dbus_message_iter_recurse(&sub, &sub2); | |
473 | ||
474 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 || | |
475 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 || | |
476 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 || | |
477 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 || | |
478 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 || | |
479 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 || | |
480 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 || | |
481 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 || | |
482 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 || | |
483 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) { | |
484 | log_error("Failed to parse reply."); | |
485 | r = -EIO; | |
486 | goto finish; | |
487 | } | |
488 | ||
489 | dbus_message_iter_next(&sub); | |
490 | c++; | |
491 | } | |
492 | ||
493 | qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info); | |
494 | output_units_list(unit_infos, c); | |
495 | ||
496 | r = 0; | |
497 | ||
498 | finish: | |
499 | if (m) | |
500 | dbus_message_unref(m); | |
501 | ||
502 | if (reply) | |
503 | dbus_message_unref(reply); | |
504 | ||
505 | free(unit_infos); | |
506 | ||
507 | dbus_error_free(&error); | |
508 | ||
509 | return r; | |
510 | } | |
511 | ||
512 | static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) { | |
513 | static const char * const colors[] = { | |
514 | "Requires", "[color=\"black\"]", | |
515 | "RequiresOverridable", "[color=\"black\"]", | |
516 | "Requisite", "[color=\"darkblue\"]", | |
517 | "RequisiteOverridable", "[color=\"darkblue\"]", | |
518 | "Wants", "[color=\"darkgrey\"]", | |
519 | "Conflicts", "[color=\"red\"]", | |
520 | "ConflictedBy", "[color=\"red\"]", | |
521 | "After", "[color=\"green\"]" | |
522 | }; | |
523 | ||
524 | const char *c = NULL; | |
525 | unsigned i; | |
526 | ||
527 | assert(name); | |
528 | assert(prop); | |
529 | assert(iter); | |
530 | ||
531 | for (i = 0; i < ELEMENTSOF(colors); i += 2) | |
532 | if (streq(colors[i], prop)) { | |
533 | c = colors[i+1]; | |
534 | break; | |
535 | } | |
536 | ||
537 | if (!c) | |
538 | return 0; | |
539 | ||
540 | if (arg_dot != DOT_ALL) | |
541 | if ((arg_dot == DOT_ORDER) != streq(prop, "After")) | |
542 | return 0; | |
543 | ||
544 | switch (dbus_message_iter_get_arg_type(iter)) { | |
545 | ||
546 | case DBUS_TYPE_ARRAY: | |
547 | ||
548 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { | |
549 | DBusMessageIter sub; | |
550 | ||
551 | dbus_message_iter_recurse(iter, &sub); | |
552 | ||
553 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
554 | const char *s; | |
555 | ||
556 | assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); | |
557 | dbus_message_iter_get_basic(&sub, &s); | |
558 | printf("\t\"%s\"->\"%s\" %s;\n", name, s, c); | |
559 | ||
560 | dbus_message_iter_next(&sub); | |
561 | } | |
562 | ||
563 | return 0; | |
564 | } | |
565 | } | |
566 | ||
567 | return 0; | |
568 | } | |
569 | ||
570 | static int dot_one(DBusConnection *bus, const char *name, const char *path) { | |
571 | DBusMessage *m = NULL, *reply = NULL; | |
572 | const char *interface = "org.freedesktop.systemd1.Unit"; | |
573 | int r; | |
574 | DBusError error; | |
575 | DBusMessageIter iter, sub, sub2, sub3; | |
576 | ||
577 | assert(bus); | |
578 | assert(path); | |
579 | ||
580 | dbus_error_init(&error); | |
581 | ||
582 | if (!(m = dbus_message_new_method_call( | |
583 | "org.freedesktop.systemd1", | |
584 | path, | |
585 | "org.freedesktop.DBus.Properties", | |
586 | "GetAll"))) { | |
587 | log_error("Could not allocate message."); | |
588 | r = -ENOMEM; | |
589 | goto finish; | |
590 | } | |
591 | ||
592 | if (!dbus_message_append_args(m, | |
593 | DBUS_TYPE_STRING, &interface, | |
594 | DBUS_TYPE_INVALID)) { | |
595 | log_error("Could not append arguments to message."); | |
596 | r = -ENOMEM; | |
597 | goto finish; | |
598 | } | |
599 | ||
600 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
601 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
602 | r = -EIO; | |
603 | goto finish; | |
604 | } | |
605 | ||
606 | if (!dbus_message_iter_init(reply, &iter) || | |
607 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
608 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { | |
609 | log_error("Failed to parse reply."); | |
610 | r = -EIO; | |
611 | goto finish; | |
612 | } | |
613 | ||
614 | dbus_message_iter_recurse(&iter, &sub); | |
615 | ||
616 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
617 | const char *prop; | |
618 | ||
619 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { | |
620 | log_error("Failed to parse reply."); | |
621 | r = -EIO; | |
622 | goto finish; | |
623 | } | |
624 | ||
625 | dbus_message_iter_recurse(&sub, &sub2); | |
626 | ||
627 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) { | |
628 | log_error("Failed to parse reply."); | |
629 | r = -EIO; | |
630 | goto finish; | |
631 | } | |
632 | ||
633 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { | |
634 | log_error("Failed to parse reply."); | |
635 | r = -EIO; | |
636 | goto finish; | |
637 | } | |
638 | ||
639 | dbus_message_iter_recurse(&sub2, &sub3); | |
640 | ||
641 | if (dot_one_property(name, prop, &sub3)) { | |
642 | log_error("Failed to parse reply."); | |
643 | r = -EIO; | |
644 | goto finish; | |
645 | } | |
646 | ||
647 | dbus_message_iter_next(&sub); | |
648 | } | |
649 | ||
650 | r = 0; | |
651 | ||
652 | finish: | |
653 | if (m) | |
654 | dbus_message_unref(m); | |
655 | ||
656 | if (reply) | |
657 | dbus_message_unref(reply); | |
658 | ||
659 | dbus_error_free(&error); | |
660 | ||
661 | return r; | |
662 | } | |
663 | ||
664 | static int dot(DBusConnection *bus, char **args, unsigned n) { | |
665 | DBusMessage *m = NULL, *reply = NULL; | |
666 | DBusError error; | |
667 | int r; | |
668 | DBusMessageIter iter, sub, sub2; | |
669 | ||
670 | dbus_error_init(&error); | |
671 | ||
672 | assert(bus); | |
673 | ||
674 | if (!(m = dbus_message_new_method_call( | |
675 | "org.freedesktop.systemd1", | |
676 | "/org/freedesktop/systemd1", | |
677 | "org.freedesktop.systemd1.Manager", | |
678 | "ListUnits"))) { | |
679 | log_error("Could not allocate message."); | |
680 | return -ENOMEM; | |
681 | } | |
682 | ||
683 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
684 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
685 | r = -EIO; | |
686 | goto finish; | |
687 | } | |
688 | ||
689 | if (!dbus_message_iter_init(reply, &iter) || | |
690 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
691 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
692 | log_error("Failed to parse reply."); | |
693 | r = -EIO; | |
694 | goto finish; | |
695 | } | |
696 | ||
697 | printf("digraph systemd {\n"); | |
698 | ||
699 | dbus_message_iter_recurse(&iter, &sub); | |
700 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
701 | const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path; | |
702 | ||
703 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
704 | log_error("Failed to parse reply."); | |
705 | r = -EIO; | |
706 | goto finish; | |
707 | } | |
708 | ||
709 | dbus_message_iter_recurse(&sub, &sub2); | |
710 | ||
711 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 || | |
712 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 || | |
713 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 || | |
714 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 || | |
715 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 || | |
716 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 || | |
717 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) { | |
718 | log_error("Failed to parse reply."); | |
719 | r = -EIO; | |
720 | goto finish; | |
721 | } | |
722 | ||
723 | if ((r = dot_one(bus, id, unit_path)) < 0) | |
724 | goto finish; | |
725 | ||
726 | /* printf("\t\"%s\";\n", id); */ | |
727 | dbus_message_iter_next(&sub); | |
728 | } | |
729 | ||
730 | printf("}\n"); | |
731 | ||
732 | log_info(" Color legend: black = Requires\n" | |
733 | " dark blue = Requisite\n" | |
734 | " dark grey = Wants\n" | |
735 | " red = Conflicts\n" | |
736 | " green = After\n"); | |
737 | ||
738 | if (isatty(fileno(stdout))) | |
739 | log_notice("-- You probably want to process this output with graphviz' dot tool.\n" | |
740 | "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n"); | |
741 | ||
742 | r = 0; | |
743 | ||
744 | finish: | |
745 | if (m) | |
746 | dbus_message_unref(m); | |
747 | ||
748 | if (reply) | |
749 | dbus_message_unref(reply); | |
750 | ||
751 | dbus_error_free(&error); | |
752 | ||
753 | return r; | |
754 | } | |
755 | ||
756 | static int list_jobs(DBusConnection *bus, char **args, unsigned n) { | |
757 | DBusMessage *m = NULL, *reply = NULL; | |
758 | DBusError error; | |
759 | int r; | |
760 | DBusMessageIter iter, sub, sub2; | |
761 | unsigned k = 0; | |
762 | ||
763 | dbus_error_init(&error); | |
764 | ||
765 | assert(bus); | |
766 | ||
767 | if (!(m = dbus_message_new_method_call( | |
768 | "org.freedesktop.systemd1", | |
769 | "/org/freedesktop/systemd1", | |
770 | "org.freedesktop.systemd1.Manager", | |
771 | "ListJobs"))) { | |
772 | log_error("Could not allocate message."); | |
773 | return -ENOMEM; | |
774 | } | |
775 | ||
776 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
777 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
778 | r = -EIO; | |
779 | goto finish; | |
780 | } | |
781 | ||
782 | if (!dbus_message_iter_init(reply, &iter) || | |
783 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
784 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT) { | |
785 | log_error("Failed to parse reply."); | |
786 | r = -EIO; | |
787 | goto finish; | |
788 | } | |
789 | ||
790 | dbus_message_iter_recurse(&iter, &sub); | |
791 | ||
792 | if (isatty(STDOUT_FILENO)) | |
793 | printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE"); | |
794 | ||
795 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
796 | const char *name, *type, *state, *job_path, *unit_path; | |
797 | uint32_t id; | |
798 | char *e; | |
799 | ||
800 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) { | |
801 | log_error("Failed to parse reply."); | |
802 | r = -EIO; | |
803 | goto finish; | |
804 | } | |
805 | ||
806 | dbus_message_iter_recurse(&sub, &sub2); | |
807 | ||
808 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 || | |
809 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 || | |
810 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 || | |
811 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 || | |
812 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 || | |
813 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) { | |
814 | log_error("Failed to parse reply."); | |
815 | r = -EIO; | |
816 | goto finish; | |
817 | } | |
818 | ||
819 | e = arg_full ? NULL : ellipsize(name, 25, 33); | |
820 | printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state); | |
821 | free(e); | |
822 | ||
823 | k++; | |
824 | ||
825 | dbus_message_iter_next(&sub); | |
826 | } | |
827 | ||
828 | if (isatty(STDOUT_FILENO)) | |
829 | printf("\n%u jobs listed.\n", k); | |
830 | ||
831 | r = 0; | |
832 | ||
833 | finish: | |
834 | if (m) | |
835 | dbus_message_unref(m); | |
836 | ||
837 | if (reply) | |
838 | dbus_message_unref(reply); | |
839 | ||
840 | dbus_error_free(&error); | |
841 | ||
842 | return r; | |
843 | } | |
844 | ||
845 | static int load_unit(DBusConnection *bus, char **args, unsigned n) { | |
846 | DBusMessage *m = NULL, *reply = NULL; | |
847 | DBusError error; | |
848 | int r; | |
849 | unsigned i; | |
850 | ||
851 | dbus_error_init(&error); | |
852 | ||
853 | assert(bus); | |
854 | assert(args); | |
855 | ||
856 | for (i = 1; i < n; i++) { | |
857 | ||
858 | if (!(m = dbus_message_new_method_call( | |
859 | "org.freedesktop.systemd1", | |
860 | "/org/freedesktop/systemd1", | |
861 | "org.freedesktop.systemd1.Manager", | |
862 | "LoadUnit"))) { | |
863 | log_error("Could not allocate message."); | |
864 | r = -ENOMEM; | |
865 | goto finish; | |
866 | } | |
867 | ||
868 | if (!dbus_message_append_args(m, | |
869 | DBUS_TYPE_STRING, &args[i], | |
870 | DBUS_TYPE_INVALID)) { | |
871 | log_error("Could not append arguments to message."); | |
872 | r = -ENOMEM; | |
873 | goto finish; | |
874 | } | |
875 | ||
876 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
877 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
878 | r = -EIO; | |
879 | goto finish; | |
880 | } | |
881 | ||
882 | dbus_message_unref(m); | |
883 | dbus_message_unref(reply); | |
884 | ||
885 | m = reply = NULL; | |
886 | } | |
887 | ||
888 | r = 0; | |
889 | ||
890 | finish: | |
891 | if (m) | |
892 | dbus_message_unref(m); | |
893 | ||
894 | if (reply) | |
895 | dbus_message_unref(reply); | |
896 | ||
897 | dbus_error_free(&error); | |
898 | ||
899 | return r; | |
900 | } | |
901 | ||
902 | static int cancel_job(DBusConnection *bus, char **args, unsigned n) { | |
903 | DBusMessage *m = NULL, *reply = NULL; | |
904 | DBusError error; | |
905 | int r; | |
906 | unsigned i; | |
907 | ||
908 | dbus_error_init(&error); | |
909 | ||
910 | assert(bus); | |
911 | assert(args); | |
912 | ||
913 | if (n <= 1) | |
914 | return daemon_reload(bus, args, n); | |
915 | ||
916 | for (i = 1; i < n; i++) { | |
917 | unsigned id; | |
918 | const char *path; | |
919 | ||
920 | if (!(m = dbus_message_new_method_call( | |
921 | "org.freedesktop.systemd1", | |
922 | "/org/freedesktop/systemd1", | |
923 | "org.freedesktop.systemd1.Manager", | |
924 | "GetJob"))) { | |
925 | log_error("Could not allocate message."); | |
926 | r = -ENOMEM; | |
927 | goto finish; | |
928 | } | |
929 | ||
930 | if ((r = safe_atou(args[i], &id)) < 0) { | |
931 | log_error("Failed to parse job id: %s", strerror(-r)); | |
932 | goto finish; | |
933 | } | |
934 | ||
935 | assert_cc(sizeof(uint32_t) == sizeof(id)); | |
936 | if (!dbus_message_append_args(m, | |
937 | DBUS_TYPE_UINT32, &id, | |
938 | DBUS_TYPE_INVALID)) { | |
939 | log_error("Could not append arguments to message."); | |
940 | r = -ENOMEM; | |
941 | goto finish; | |
942 | } | |
943 | ||
944 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
945 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
946 | r = -EIO; | |
947 | goto finish; | |
948 | } | |
949 | ||
950 | if (!dbus_message_get_args(reply, &error, | |
951 | DBUS_TYPE_OBJECT_PATH, &path, | |
952 | DBUS_TYPE_INVALID)) { | |
953 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
954 | r = -EIO; | |
955 | goto finish; | |
956 | } | |
957 | ||
958 | dbus_message_unref(m); | |
959 | if (!(m = dbus_message_new_method_call( | |
960 | "org.freedesktop.systemd1", | |
961 | path, | |
962 | "org.freedesktop.systemd1.Job", | |
963 | "Cancel"))) { | |
964 | log_error("Could not allocate message."); | |
965 | r = -ENOMEM; | |
966 | goto finish; | |
967 | } | |
968 | ||
969 | dbus_message_unref(reply); | |
970 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
971 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
972 | r = -EIO; | |
973 | goto finish; | |
974 | } | |
975 | ||
976 | dbus_message_unref(m); | |
977 | dbus_message_unref(reply); | |
978 | m = reply = NULL; | |
979 | } | |
980 | ||
981 | r = 0; | |
982 | ||
983 | finish: | |
984 | if (m) | |
985 | dbus_message_unref(m); | |
986 | ||
987 | if (reply) | |
988 | dbus_message_unref(reply); | |
989 | ||
990 | dbus_error_free(&error); | |
991 | ||
992 | return r; | |
993 | } | |
994 | ||
995 | static bool need_daemon_reload(DBusConnection *bus, const char *unit) { | |
996 | DBusMessage *m = NULL, *reply = NULL; | |
997 | dbus_bool_t b = FALSE; | |
998 | DBusMessageIter iter, sub; | |
999 | const char | |
1000 | *interface = "org.freedesktop.systemd1.Unit", | |
1001 | *property = "NeedDaemonReload", | |
1002 | *path; | |
1003 | ||
1004 | /* We ignore all errors here, since this is used to show a warning only */ | |
1005 | ||
1006 | if (!(m = dbus_message_new_method_call( | |
1007 | "org.freedesktop.systemd1", | |
1008 | "/org/freedesktop/systemd1", | |
1009 | "org.freedesktop.systemd1.Manager", | |
1010 | "GetUnit"))) | |
1011 | goto finish; | |
1012 | ||
1013 | if (!dbus_message_append_args(m, | |
1014 | DBUS_TYPE_STRING, &unit, | |
1015 | DBUS_TYPE_INVALID)) | |
1016 | goto finish; | |
1017 | ||
1018 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) | |
1019 | goto finish; | |
1020 | ||
1021 | if (!dbus_message_get_args(reply, NULL, | |
1022 | DBUS_TYPE_OBJECT_PATH, &path, | |
1023 | DBUS_TYPE_INVALID)) | |
1024 | goto finish; | |
1025 | ||
1026 | dbus_message_unref(m); | |
1027 | if (!(m = dbus_message_new_method_call( | |
1028 | "org.freedesktop.systemd1", | |
1029 | path, | |
1030 | "org.freedesktop.DBus.Properties", | |
1031 | "Get"))) | |
1032 | goto finish; | |
1033 | ||
1034 | if (!dbus_message_append_args(m, | |
1035 | DBUS_TYPE_STRING, &interface, | |
1036 | DBUS_TYPE_STRING, &property, | |
1037 | DBUS_TYPE_INVALID)) { | |
1038 | goto finish; | |
1039 | } | |
1040 | ||
1041 | dbus_message_unref(reply); | |
1042 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL))) | |
1043 | goto finish; | |
1044 | ||
1045 | if (!dbus_message_iter_init(reply, &iter) || | |
1046 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) | |
1047 | goto finish; | |
1048 | ||
1049 | dbus_message_iter_recurse(&iter, &sub); | |
1050 | ||
1051 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN) | |
1052 | goto finish; | |
1053 | ||
1054 | dbus_message_iter_get_basic(&sub, &b); | |
1055 | ||
1056 | finish: | |
1057 | if (m) | |
1058 | dbus_message_unref(m); | |
1059 | ||
1060 | if (reply) | |
1061 | dbus_message_unref(reply); | |
1062 | ||
1063 | return b; | |
1064 | } | |
1065 | ||
1066 | typedef struct WaitData { | |
1067 | Set *set; | |
1068 | bool failed; | |
1069 | } WaitData; | |
1070 | ||
1071 | static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) { | |
1072 | DBusError error; | |
1073 | WaitData *d = data; | |
1074 | ||
1075 | assert(connection); | |
1076 | assert(message); | |
1077 | assert(d); | |
1078 | ||
1079 | dbus_error_init(&error); | |
1080 | ||
1081 | log_debug("Got D-Bus request: %s.%s() on %s", | |
1082 | dbus_message_get_interface(message), | |
1083 | dbus_message_get_member(message), | |
1084 | dbus_message_get_path(message)); | |
1085 | ||
1086 | if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { | |
1087 | log_error("Warning! D-Bus connection terminated."); | |
1088 | dbus_connection_close(connection); | |
1089 | ||
1090 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { | |
1091 | uint32_t id; | |
1092 | const char *path; | |
1093 | dbus_bool_t success = true; | |
1094 | ||
1095 | if (!dbus_message_get_args(message, &error, | |
1096 | DBUS_TYPE_UINT32, &id, | |
1097 | DBUS_TYPE_OBJECT_PATH, &path, | |
1098 | DBUS_TYPE_BOOLEAN, &success, | |
1099 | DBUS_TYPE_INVALID)) | |
1100 | log_error("Failed to parse message: %s", bus_error_message(&error)); | |
1101 | else { | |
1102 | char *p; | |
1103 | ||
1104 | if ((p = set_remove(d->set, (char*) path))) | |
1105 | free(p); | |
1106 | ||
1107 | if (!success) | |
1108 | d->failed = true; | |
1109 | } | |
1110 | } | |
1111 | ||
1112 | dbus_error_free(&error); | |
1113 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; | |
1114 | } | |
1115 | ||
1116 | static int enable_wait_for_jobs(DBusConnection *bus) { | |
1117 | DBusError error; | |
1118 | ||
1119 | assert(bus); | |
1120 | ||
1121 | if (private_bus) | |
1122 | return 0; | |
1123 | ||
1124 | dbus_error_init(&error); | |
1125 | dbus_bus_add_match(bus, | |
1126 | "type='signal'," | |
1127 | "sender='org.freedesktop.systemd1'," | |
1128 | "interface='org.freedesktop.systemd1.Manager'," | |
1129 | "member='JobRemoved'," | |
1130 | "path='/org/freedesktop/systemd1'", | |
1131 | &error); | |
1132 | ||
1133 | if (dbus_error_is_set(&error)) { | |
1134 | log_error("Failed to add match: %s", bus_error_message(&error)); | |
1135 | dbus_error_free(&error); | |
1136 | return -EIO; | |
1137 | } | |
1138 | ||
1139 | /* This is slightly dirty, since we don't undo the match registrations. */ | |
1140 | return 0; | |
1141 | } | |
1142 | ||
1143 | static int wait_for_jobs(DBusConnection *bus, Set *s) { | |
1144 | int r; | |
1145 | WaitData d; | |
1146 | ||
1147 | assert(bus); | |
1148 | assert(s); | |
1149 | ||
1150 | zero(d); | |
1151 | d.set = s; | |
1152 | d.failed = false; | |
1153 | ||
1154 | if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) { | |
1155 | log_error("Failed to add filter."); | |
1156 | r = -ENOMEM; | |
1157 | goto finish; | |
1158 | } | |
1159 | ||
1160 | while (!set_isempty(s) && | |
1161 | dbus_connection_read_write_dispatch(bus, -1)) | |
1162 | ; | |
1163 | ||
1164 | if (!arg_quiet && d.failed) | |
1165 | log_error("Job failed. See system logs and 'systemctl status' for details."); | |
1166 | ||
1167 | r = d.failed ? -EIO : 0; | |
1168 | ||
1169 | finish: | |
1170 | /* This is slightly dirty, since we don't undo the filter registration. */ | |
1171 | ||
1172 | return r; | |
1173 | } | |
1174 | ||
1175 | static int start_unit_one( | |
1176 | DBusConnection *bus, | |
1177 | const char *method, | |
1178 | const char *name, | |
1179 | const char *mode, | |
1180 | DBusError *error, | |
1181 | Set *s) { | |
1182 | ||
1183 | DBusMessage *m = NULL, *reply = NULL; | |
1184 | const char *path; | |
1185 | int r; | |
1186 | ||
1187 | assert(bus); | |
1188 | assert(method); | |
1189 | assert(name); | |
1190 | assert(mode); | |
1191 | assert(error); | |
1192 | assert(arg_no_block || s); | |
1193 | ||
1194 | if (!(m = dbus_message_new_method_call( | |
1195 | "org.freedesktop.systemd1", | |
1196 | "/org/freedesktop/systemd1", | |
1197 | "org.freedesktop.systemd1.Manager", | |
1198 | method))) { | |
1199 | log_error("Could not allocate message."); | |
1200 | r = -ENOMEM; | |
1201 | goto finish; | |
1202 | } | |
1203 | ||
1204 | if (!dbus_message_append_args(m, | |
1205 | DBUS_TYPE_STRING, &name, | |
1206 | DBUS_TYPE_STRING, &mode, | |
1207 | DBUS_TYPE_INVALID)) { | |
1208 | log_error("Could not append arguments to message."); | |
1209 | r = -ENOMEM; | |
1210 | goto finish; | |
1211 | } | |
1212 | ||
1213 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) { | |
1214 | ||
1215 | if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) { | |
1216 | /* There's always a fallback possible for | |
1217 | * legacy actions. */ | |
1218 | r = -EADDRNOTAVAIL; | |
1219 | goto finish; | |
1220 | } | |
1221 | ||
1222 | log_error("Failed to issue method call: %s", bus_error_message(error)); | |
1223 | r = -EIO; | |
1224 | goto finish; | |
1225 | } | |
1226 | ||
1227 | if (!dbus_message_get_args(reply, error, | |
1228 | DBUS_TYPE_OBJECT_PATH, &path, | |
1229 | DBUS_TYPE_INVALID)) { | |
1230 | log_error("Failed to parse reply: %s", bus_error_message(error)); | |
1231 | r = -EIO; | |
1232 | goto finish; | |
1233 | } | |
1234 | ||
1235 | if (need_daemon_reload(bus, name)) | |
1236 | log_warning("Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.", | |
1237 | arg_session ? "--session" : "--system"); | |
1238 | ||
1239 | if (!arg_no_block) { | |
1240 | char *p; | |
1241 | ||
1242 | if (!(p = strdup(path))) { | |
1243 | log_error("Failed to duplicate path."); | |
1244 | r = -ENOMEM; | |
1245 | goto finish; | |
1246 | } | |
1247 | ||
1248 | if ((r = set_put(s, p)) < 0) { | |
1249 | free(p); | |
1250 | log_error("Failed to add path to set."); | |
1251 | goto finish; | |
1252 | } | |
1253 | } | |
1254 | ||
1255 | r = 0; | |
1256 | ||
1257 | finish: | |
1258 | if (m) | |
1259 | dbus_message_unref(m); | |
1260 | ||
1261 | if (reply) | |
1262 | dbus_message_unref(reply); | |
1263 | ||
1264 | return r; | |
1265 | } | |
1266 | ||
1267 | static enum action verb_to_action(const char *verb) { | |
1268 | if (streq(verb, "halt")) | |
1269 | return ACTION_HALT; | |
1270 | else if (streq(verb, "poweroff")) | |
1271 | return ACTION_POWEROFF; | |
1272 | else if (streq(verb, "reboot")) | |
1273 | return ACTION_REBOOT; | |
1274 | else if (streq(verb, "kexec")) | |
1275 | return ACTION_KEXEC; | |
1276 | else if (streq(verb, "rescue")) | |
1277 | return ACTION_RESCUE; | |
1278 | else if (streq(verb, "emergency")) | |
1279 | return ACTION_EMERGENCY; | |
1280 | else if (streq(verb, "default")) | |
1281 | return ACTION_DEFAULT; | |
1282 | else if (streq(verb, "exit")) | |
1283 | return ACTION_EXIT; | |
1284 | else | |
1285 | return ACTION_INVALID; | |
1286 | } | |
1287 | ||
1288 | static int start_unit(DBusConnection *bus, char **args, unsigned n) { | |
1289 | ||
1290 | static const char * const table[_ACTION_MAX] = { | |
1291 | [ACTION_HALT] = SPECIAL_HALT_TARGET, | |
1292 | [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET, | |
1293 | [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET, | |
1294 | [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET, | |
1295 | [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET, | |
1296 | [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET, | |
1297 | [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET, | |
1298 | [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET, | |
1299 | [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET, | |
1300 | [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET, | |
1301 | [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET, | |
1302 | [ACTION_EXIT] = SPECIAL_EXIT_TARGET | |
1303 | }; | |
1304 | ||
1305 | int r, ret = 0; | |
1306 | unsigned i; | |
1307 | const char *method, *mode, *one_name; | |
1308 | Set *s = NULL; | |
1309 | DBusError error; | |
1310 | ||
1311 | dbus_error_init(&error); | |
1312 | ||
1313 | assert(bus); | |
1314 | ||
1315 | spawn_ask_password_agent(); | |
1316 | ||
1317 | if (arg_action == ACTION_SYSTEMCTL) { | |
1318 | method = | |
1319 | streq(args[0], "stop") ? "StopUnit" : | |
1320 | streq(args[0], "reload") ? "ReloadUnit" : | |
1321 | streq(args[0], "restart") ? "RestartUnit" : | |
1322 | streq(args[0], "try-restart") || | |
1323 | streq(args[0], "condrestart") ? "TryRestartUnit" : | |
1324 | streq(args[0], "reload-or-restart") ? "ReloadOrRestartUnit" : | |
1325 | streq(args[0], "reload-or-try-restart") || | |
1326 | streq(args[0], "force-reload") ? "ReloadOrTryRestartUnit" : | |
1327 | "StartUnit"; | |
1328 | ||
1329 | mode = | |
1330 | (streq(args[0], "isolate") || | |
1331 | streq(args[0], "rescue") || | |
1332 | streq(args[0], "emergency")) ? "isolate" : | |
1333 | arg_fail ? "fail" : | |
1334 | "replace"; | |
1335 | ||
1336 | one_name = table[verb_to_action(args[0])]; | |
1337 | ||
1338 | } else { | |
1339 | assert(arg_action < ELEMENTSOF(table)); | |
1340 | assert(table[arg_action]); | |
1341 | ||
1342 | method = "StartUnit"; | |
1343 | ||
1344 | mode = (arg_action == ACTION_EMERGENCY || | |
1345 | arg_action == ACTION_RESCUE || | |
1346 | arg_action == ACTION_RUNLEVEL2 || | |
1347 | arg_action == ACTION_RUNLEVEL3 || | |
1348 | arg_action == ACTION_RUNLEVEL4 || | |
1349 | arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace"; | |
1350 | ||
1351 | one_name = table[arg_action]; | |
1352 | } | |
1353 | ||
1354 | if (!arg_no_block) { | |
1355 | if ((ret = enable_wait_for_jobs(bus)) < 0) { | |
1356 | log_error("Could not watch jobs: %s", strerror(-ret)); | |
1357 | goto finish; | |
1358 | } | |
1359 | ||
1360 | if (!(s = set_new(string_hash_func, string_compare_func))) { | |
1361 | log_error("Failed to allocate set."); | |
1362 | ret = -ENOMEM; | |
1363 | goto finish; | |
1364 | } | |
1365 | } | |
1366 | ||
1367 | if (one_name) { | |
1368 | if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0) | |
1369 | goto finish; | |
1370 | } else { | |
1371 | for (i = 1; i < n; i++) | |
1372 | if ((r = start_unit_one(bus, method, args[i], mode, &error, s)) != 0) { | |
1373 | ret = translate_bus_error_to_exit_status(r, &error); | |
1374 | dbus_error_free(&error); | |
1375 | } | |
1376 | } | |
1377 | ||
1378 | if (!arg_no_block) | |
1379 | if ((r = wait_for_jobs(bus, s)) < 0) { | |
1380 | ret = r; | |
1381 | goto finish; | |
1382 | } | |
1383 | ||
1384 | finish: | |
1385 | if (s) | |
1386 | set_free_free(s); | |
1387 | ||
1388 | dbus_error_free(&error); | |
1389 | ||
1390 | return ret; | |
1391 | } | |
1392 | ||
1393 | static int start_special(DBusConnection *bus, char **args, unsigned n) { | |
1394 | int r; | |
1395 | ||
1396 | assert(bus); | |
1397 | assert(args); | |
1398 | ||
1399 | if (arg_force && | |
1400 | (streq(args[0], "halt") || | |
1401 | streq(args[0], "poweroff") || | |
1402 | streq(args[0], "reboot") || | |
1403 | streq(args[0], "kexec") || | |
1404 | streq(args[0], "exit"))) | |
1405 | return daemon_reload(bus, args, n); | |
1406 | ||
1407 | r = start_unit(bus, args, n); | |
1408 | ||
1409 | if (r >= 0) | |
1410 | warn_wall(verb_to_action(args[0])); | |
1411 | ||
1412 | return r; | |
1413 | } | |
1414 | ||
1415 | static int check_unit(DBusConnection *bus, char **args, unsigned n) { | |
1416 | DBusMessage *m = NULL, *reply = NULL; | |
1417 | const char | |
1418 | *interface = "org.freedesktop.systemd1.Unit", | |
1419 | *property = "ActiveState"; | |
1420 | int r = 3; /* According to LSB: "program is not running" */ | |
1421 | DBusError error; | |
1422 | unsigned i; | |
1423 | ||
1424 | assert(bus); | |
1425 | assert(args); | |
1426 | ||
1427 | dbus_error_init(&error); | |
1428 | ||
1429 | for (i = 1; i < n; i++) { | |
1430 | const char *path = NULL; | |
1431 | const char *state; | |
1432 | DBusMessageIter iter, sub; | |
1433 | ||
1434 | if (!(m = dbus_message_new_method_call( | |
1435 | "org.freedesktop.systemd1", | |
1436 | "/org/freedesktop/systemd1", | |
1437 | "org.freedesktop.systemd1.Manager", | |
1438 | "GetUnit"))) { | |
1439 | log_error("Could not allocate message."); | |
1440 | r = -ENOMEM; | |
1441 | goto finish; | |
1442 | } | |
1443 | ||
1444 | if (!dbus_message_append_args(m, | |
1445 | DBUS_TYPE_STRING, &args[i], | |
1446 | DBUS_TYPE_INVALID)) { | |
1447 | log_error("Could not append arguments to message."); | |
1448 | r = -ENOMEM; | |
1449 | goto finish; | |
1450 | } | |
1451 | ||
1452 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1453 | ||
1454 | /* Hmm, cannot figure out anything about this unit... */ | |
1455 | if (!arg_quiet) | |
1456 | puts("unknown"); | |
1457 | ||
1458 | dbus_error_free(&error); | |
1459 | dbus_message_unref(m); | |
1460 | continue; | |
1461 | } | |
1462 | ||
1463 | if (!dbus_message_get_args(reply, &error, | |
1464 | DBUS_TYPE_OBJECT_PATH, &path, | |
1465 | DBUS_TYPE_INVALID)) { | |
1466 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
1467 | r = -EIO; | |
1468 | goto finish; | |
1469 | } | |
1470 | ||
1471 | dbus_message_unref(m); | |
1472 | if (!(m = dbus_message_new_method_call( | |
1473 | "org.freedesktop.systemd1", | |
1474 | path, | |
1475 | "org.freedesktop.DBus.Properties", | |
1476 | "Get"))) { | |
1477 | log_error("Could not allocate message."); | |
1478 | r = -ENOMEM; | |
1479 | goto finish; | |
1480 | } | |
1481 | ||
1482 | if (!dbus_message_append_args(m, | |
1483 | DBUS_TYPE_STRING, &interface, | |
1484 | DBUS_TYPE_STRING, &property, | |
1485 | DBUS_TYPE_INVALID)) { | |
1486 | log_error("Could not append arguments to message."); | |
1487 | r = -ENOMEM; | |
1488 | goto finish; | |
1489 | } | |
1490 | ||
1491 | dbus_message_unref(reply); | |
1492 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1493 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1494 | r = -EIO; | |
1495 | goto finish; | |
1496 | } | |
1497 | ||
1498 | if (!dbus_message_iter_init(reply, &iter) || | |
1499 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
1500 | log_error("Failed to parse reply."); | |
1501 | r = -EIO; | |
1502 | goto finish; | |
1503 | } | |
1504 | ||
1505 | dbus_message_iter_recurse(&iter, &sub); | |
1506 | ||
1507 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
1508 | log_error("Failed to parse reply."); | |
1509 | r = -EIO; | |
1510 | goto finish; | |
1511 | } | |
1512 | ||
1513 | dbus_message_iter_get_basic(&sub, &state); | |
1514 | ||
1515 | if (!arg_quiet) | |
1516 | puts(state); | |
1517 | ||
1518 | if (streq(state, "active") || streq(state, "reloading")) | |
1519 | r = 0; | |
1520 | ||
1521 | dbus_message_unref(m); | |
1522 | dbus_message_unref(reply); | |
1523 | m = reply = NULL; | |
1524 | } | |
1525 | ||
1526 | finish: | |
1527 | if (m) | |
1528 | dbus_message_unref(m); | |
1529 | ||
1530 | if (reply) | |
1531 | dbus_message_unref(reply); | |
1532 | ||
1533 | dbus_error_free(&error); | |
1534 | ||
1535 | return r; | |
1536 | } | |
1537 | ||
1538 | static int kill_unit(DBusConnection *bus, char **args, unsigned n) { | |
1539 | DBusMessage *m = NULL, *reply = NULL; | |
1540 | int r = 0; | |
1541 | DBusError error; | |
1542 | unsigned i; | |
1543 | ||
1544 | assert(bus); | |
1545 | assert(args); | |
1546 | ||
1547 | dbus_error_init(&error); | |
1548 | ||
1549 | if (!arg_kill_who) | |
1550 | arg_kill_who = "all"; | |
1551 | ||
1552 | if (!arg_kill_mode) | |
1553 | arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process"; | |
1554 | ||
1555 | for (i = 1; i < n; i++) { | |
1556 | ||
1557 | if (!(m = dbus_message_new_method_call( | |
1558 | "org.freedesktop.systemd1", | |
1559 | "/org/freedesktop/systemd1", | |
1560 | "org.freedesktop.systemd1.Manager", | |
1561 | "KillUnit"))) { | |
1562 | log_error("Could not allocate message."); | |
1563 | r = -ENOMEM; | |
1564 | goto finish; | |
1565 | } | |
1566 | ||
1567 | if (!dbus_message_append_args(m, | |
1568 | DBUS_TYPE_STRING, &args[i], | |
1569 | DBUS_TYPE_STRING, &arg_kill_who, | |
1570 | DBUS_TYPE_STRING, &arg_kill_mode, | |
1571 | DBUS_TYPE_INT32, &arg_signal, | |
1572 | DBUS_TYPE_INVALID)) { | |
1573 | log_error("Could not append arguments to message."); | |
1574 | r = -ENOMEM; | |
1575 | goto finish; | |
1576 | } | |
1577 | ||
1578 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
1579 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
1580 | dbus_error_free(&error); | |
1581 | r = -EIO; | |
1582 | } | |
1583 | ||
1584 | dbus_message_unref(m); | |
1585 | ||
1586 | if (reply) | |
1587 | dbus_message_unref(reply); | |
1588 | m = reply = NULL; | |
1589 | } | |
1590 | ||
1591 | finish: | |
1592 | if (m) | |
1593 | dbus_message_unref(m); | |
1594 | ||
1595 | if (reply) | |
1596 | dbus_message_unref(reply); | |
1597 | ||
1598 | dbus_error_free(&error); | |
1599 | ||
1600 | return r; | |
1601 | } | |
1602 | ||
1603 | typedef struct ExecStatusInfo { | |
1604 | char *path; | |
1605 | char **argv; | |
1606 | ||
1607 | bool ignore; | |
1608 | ||
1609 | usec_t start_timestamp; | |
1610 | usec_t exit_timestamp; | |
1611 | pid_t pid; | |
1612 | int code; | |
1613 | int status; | |
1614 | ||
1615 | LIST_FIELDS(struct ExecStatusInfo, exec); | |
1616 | } ExecStatusInfo; | |
1617 | ||
1618 | static void exec_status_info_free(ExecStatusInfo *i) { | |
1619 | assert(i); | |
1620 | ||
1621 | free(i->path); | |
1622 | strv_free(i->argv); | |
1623 | free(i); | |
1624 | } | |
1625 | ||
1626 | static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) { | |
1627 | uint64_t start_timestamp, exit_timestamp; | |
1628 | DBusMessageIter sub2, sub3; | |
1629 | const char*path; | |
1630 | unsigned n; | |
1631 | uint32_t pid; | |
1632 | int32_t code, status; | |
1633 | dbus_bool_t ignore; | |
1634 | ||
1635 | assert(i); | |
1636 | assert(i); | |
1637 | ||
1638 | if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT) | |
1639 | return -EIO; | |
1640 | ||
1641 | dbus_message_iter_recurse(sub, &sub2); | |
1642 | ||
1643 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0) | |
1644 | return -EIO; | |
1645 | ||
1646 | if (!(i->path = strdup(path))) | |
1647 | return -ENOMEM; | |
1648 | ||
1649 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY || | |
1650 | dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING) | |
1651 | return -EIO; | |
1652 | ||
1653 | n = 0; | |
1654 | dbus_message_iter_recurse(&sub2, &sub3); | |
1655 | while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { | |
1656 | assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); | |
1657 | dbus_message_iter_next(&sub3); | |
1658 | n++; | |
1659 | } | |
1660 | ||
1661 | ||
1662 | if (!(i->argv = new0(char*, n+1))) | |
1663 | return -ENOMEM; | |
1664 | ||
1665 | n = 0; | |
1666 | dbus_message_iter_recurse(&sub2, &sub3); | |
1667 | while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) { | |
1668 | const char *s; | |
1669 | ||
1670 | assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING); | |
1671 | dbus_message_iter_get_basic(&sub3, &s); | |
1672 | dbus_message_iter_next(&sub3); | |
1673 | ||
1674 | if (!(i->argv[n++] = strdup(s))) | |
1675 | return -ENOMEM; | |
1676 | } | |
1677 | ||
1678 | if (!dbus_message_iter_next(&sub2) || | |
1679 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 || | |
1680 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 || | |
1681 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 || | |
1682 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 || | |
1683 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 || | |
1684 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0) | |
1685 | return -EIO; | |
1686 | ||
1687 | i->ignore = ignore; | |
1688 | i->start_timestamp = (usec_t) start_timestamp; | |
1689 | i->exit_timestamp = (usec_t) exit_timestamp; | |
1690 | i->pid = (pid_t) pid; | |
1691 | i->code = code; | |
1692 | i->status = status; | |
1693 | ||
1694 | return 0; | |
1695 | } | |
1696 | ||
1697 | typedef struct UnitStatusInfo { | |
1698 | const char *id; | |
1699 | const char *load_state; | |
1700 | const char *active_state; | |
1701 | const char *sub_state; | |
1702 | ||
1703 | const char *description; | |
1704 | const char *following; | |
1705 | ||
1706 | const char *path; | |
1707 | const char *default_control_group; | |
1708 | ||
1709 | usec_t inactive_exit_timestamp; | |
1710 | usec_t active_enter_timestamp; | |
1711 | usec_t active_exit_timestamp; | |
1712 | usec_t inactive_enter_timestamp; | |
1713 | ||
1714 | bool need_daemon_reload; | |
1715 | ||
1716 | /* Service */ | |
1717 | pid_t main_pid; | |
1718 | pid_t control_pid; | |
1719 | const char *status_text; | |
1720 | bool running:1; | |
1721 | #ifdef HAVE_SYSV_COMPAT | |
1722 | bool is_sysv:1; | |
1723 | #endif | |
1724 | ||
1725 | usec_t start_timestamp; | |
1726 | usec_t exit_timestamp; | |
1727 | ||
1728 | int exit_code, exit_status; | |
1729 | ||
1730 | /* Socket */ | |
1731 | unsigned n_accepted; | |
1732 | unsigned n_connections; | |
1733 | bool accept; | |
1734 | ||
1735 | /* Device */ | |
1736 | const char *sysfs_path; | |
1737 | ||
1738 | /* Mount, Automount */ | |
1739 | const char *where; | |
1740 | ||
1741 | /* Swap */ | |
1742 | const char *what; | |
1743 | ||
1744 | LIST_HEAD(ExecStatusInfo, exec); | |
1745 | } UnitStatusInfo; | |
1746 | ||
1747 | static void print_status_info(UnitStatusInfo *i) { | |
1748 | ExecStatusInfo *p; | |
1749 | const char *on, *off, *ss; | |
1750 | usec_t timestamp; | |
1751 | char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1; | |
1752 | char since2[FORMAT_TIMESTAMP_MAX], *s2; | |
1753 | ||
1754 | assert(i); | |
1755 | ||
1756 | /* This shows pretty information about a unit. See | |
1757 | * print_property() for a low-level property printer */ | |
1758 | ||
1759 | printf("%s", strna(i->id)); | |
1760 | ||
1761 | if (i->description && !streq_ptr(i->id, i->description)) | |
1762 | printf(" - %s", i->description); | |
1763 | ||
1764 | printf("\n"); | |
1765 | ||
1766 | if (i->following) | |
1767 | printf("\t Follow: unit currently follows state of %s\n", i->following); | |
1768 | ||
1769 | if (streq_ptr(i->load_state, "failed") || | |
1770 | streq_ptr(i->load_state, "banned")) { | |
1771 | on = ansi_highlight(true); | |
1772 | off = ansi_highlight(false); | |
1773 | } else | |
1774 | on = off = ""; | |
1775 | ||
1776 | if (i->path) | |
1777 | printf("\t Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path); | |
1778 | else | |
1779 | printf("\t Loaded: %s%s%s\n", on, strna(i->load_state), off); | |
1780 | ||
1781 | ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state; | |
1782 | ||
1783 | if (streq_ptr(i->active_state, "failed")) { | |
1784 | on = ansi_highlight(true); | |
1785 | off = ansi_highlight(false); | |
1786 | } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) { | |
1787 | on = ansi_highlight_green(true); | |
1788 | off = ansi_highlight_green(false); | |
1789 | } else | |
1790 | on = off = ""; | |
1791 | ||
1792 | if (ss) | |
1793 | printf("\t Active: %s%s (%s)%s", | |
1794 | on, | |
1795 | strna(i->active_state), | |
1796 | ss, | |
1797 | off); | |
1798 | else | |
1799 | printf("\t Active: %s%s%s", | |
1800 | on, | |
1801 | strna(i->active_state), | |
1802 | off); | |
1803 | ||
1804 | timestamp = (streq_ptr(i->active_state, "active") || | |
1805 | streq_ptr(i->active_state, "reloading")) ? i->active_enter_timestamp : | |
1806 | (streq_ptr(i->active_state, "inactive") || | |
1807 | streq_ptr(i->active_state, "failed")) ? i->inactive_enter_timestamp : | |
1808 | streq_ptr(i->active_state, "activating") ? i->inactive_exit_timestamp : | |
1809 | i->active_exit_timestamp; | |
1810 | ||
1811 | s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp); | |
1812 | s2 = format_timestamp(since2, sizeof(since2), timestamp); | |
1813 | ||
1814 | if (s1) | |
1815 | printf(" since %s; %s\n", s2, s1); | |
1816 | else if (s2) | |
1817 | printf(" since %s\n", s2); | |
1818 | else | |
1819 | printf("\n"); | |
1820 | ||
1821 | if (i->sysfs_path) | |
1822 | printf("\t Device: %s\n", i->sysfs_path); | |
1823 | else if (i->where) | |
1824 | printf("\t Where: %s\n", i->where); | |
1825 | else if (i->what) | |
1826 | printf("\t What: %s\n", i->what); | |
1827 | ||
1828 | if (i->accept) | |
1829 | printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections); | |
1830 | ||
1831 | LIST_FOREACH(exec, p, i->exec) { | |
1832 | char *t; | |
1833 | ||
1834 | /* Only show exited processes here */ | |
1835 | if (p->code == 0) | |
1836 | continue; | |
1837 | ||
1838 | t = strv_join(p->argv, " "); | |
1839 | printf("\t Process: %u (%s, code=%s, ", p->pid, strna(t), sigchld_code_to_string(p->code)); | |
1840 | free(t); | |
1841 | ||
1842 | if (p->code == CLD_EXITED) { | |
1843 | const char *c; | |
1844 | ||
1845 | printf("status=%i", p->status); | |
1846 | ||
1847 | #ifdef HAVE_SYSV_COMPAT | |
1848 | if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD))) | |
1849 | #else | |
1850 | if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD))) | |
1851 | #endif | |
1852 | printf("/%s", c); | |
1853 | ||
1854 | } else | |
1855 | printf("signal=%s", signal_to_string(p->status)); | |
1856 | printf(")\n"); | |
1857 | ||
1858 | if (i->main_pid == p->pid && | |
1859 | i->start_timestamp == p->start_timestamp && | |
1860 | i->exit_timestamp == p->start_timestamp) | |
1861 | /* Let's not show this twice */ | |
1862 | i->main_pid = 0; | |
1863 | ||
1864 | if (p->pid == i->control_pid) | |
1865 | i->control_pid = 0; | |
1866 | } | |
1867 | ||
1868 | if (i->main_pid > 0 || i->control_pid > 0) { | |
1869 | printf("\t"); | |
1870 | ||
1871 | if (i->main_pid > 0) { | |
1872 | printf("Main PID: %u", (unsigned) i->main_pid); | |
1873 | ||
1874 | if (i->running) { | |
1875 | char *t = NULL; | |
1876 | get_process_name(i->main_pid, &t); | |
1877 | if (t) { | |
1878 | printf(" (%s)", t); | |
1879 | free(t); | |
1880 | } | |
1881 | } else if (i->exit_code > 0) { | |
1882 | printf(" (code=%s, ", sigchld_code_to_string(i->exit_code)); | |
1883 | ||
1884 | if (i->exit_code == CLD_EXITED) { | |
1885 | const char *c; | |
1886 | ||
1887 | printf("status=%i", i->exit_status); | |
1888 | ||
1889 | #ifdef HAVE_SYSV_COMPAT | |
1890 | if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD))) | |
1891 | #else | |
1892 | if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD))) | |
1893 | #endif | |
1894 | printf("/%s", c); | |
1895 | ||
1896 | } else | |
1897 | printf("signal=%s", signal_to_string(i->exit_status)); | |
1898 | printf(")"); | |
1899 | } | |
1900 | } | |
1901 | ||
1902 | if (i->main_pid > 0 && i->control_pid > 0) | |
1903 | printf(";"); | |
1904 | ||
1905 | if (i->control_pid > 0) { | |
1906 | char *t = NULL; | |
1907 | ||
1908 | printf(" Control: %u", (unsigned) i->control_pid); | |
1909 | ||
1910 | get_process_name(i->control_pid, &t); | |
1911 | if (t) { | |
1912 | printf(" (%s)", t); | |
1913 | free(t); | |
1914 | } | |
1915 | } | |
1916 | ||
1917 | printf("\n"); | |
1918 | } | |
1919 | ||
1920 | if (i->status_text) | |
1921 | printf("\t Status: \"%s\"\n", i->status_text); | |
1922 | ||
1923 | if (i->default_control_group) { | |
1924 | unsigned c; | |
1925 | ||
1926 | printf("\t CGroup: %s\n", i->default_control_group); | |
1927 | ||
1928 | if ((c = columns()) > 18) | |
1929 | c -= 18; | |
1930 | else | |
1931 | c = 0; | |
1932 | ||
1933 | show_cgroup_by_path(i->default_control_group, "\t\t ", c); | |
1934 | } | |
1935 | ||
1936 | if (i->need_daemon_reload) | |
1937 | printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n", | |
1938 | ansi_highlight(true), | |
1939 | ansi_highlight(false), | |
1940 | arg_session ? "--session" : "--system"); | |
1941 | } | |
1942 | ||
1943 | static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) { | |
1944 | ||
1945 | switch (dbus_message_iter_get_arg_type(iter)) { | |
1946 | ||
1947 | case DBUS_TYPE_STRING: { | |
1948 | const char *s; | |
1949 | ||
1950 | dbus_message_iter_get_basic(iter, &s); | |
1951 | ||
1952 | if (s[0]) { | |
1953 | if (streq(name, "Id")) | |
1954 | i->id = s; | |
1955 | else if (streq(name, "LoadState")) | |
1956 | i->load_state = s; | |
1957 | else if (streq(name, "ActiveState")) | |
1958 | i->active_state = s; | |
1959 | else if (streq(name, "SubState")) | |
1960 | i->sub_state = s; | |
1961 | else if (streq(name, "Description")) | |
1962 | i->description = s; | |
1963 | else if (streq(name, "FragmentPath")) | |
1964 | i->path = s; | |
1965 | #ifdef HAVE_SYSV_COMPAT | |
1966 | else if (streq(name, "SysVPath")) { | |
1967 | i->is_sysv = true; | |
1968 | i->path = s; | |
1969 | } | |
1970 | #endif | |
1971 | else if (streq(name, "DefaultControlGroup")) | |
1972 | i->default_control_group = s; | |
1973 | else if (streq(name, "StatusText")) | |
1974 | i->status_text = s; | |
1975 | else if (streq(name, "SysFSPath")) | |
1976 | i->sysfs_path = s; | |
1977 | else if (streq(name, "Where")) | |
1978 | i->where = s; | |
1979 | else if (streq(name, "What")) | |
1980 | i->what = s; | |
1981 | else if (streq(name, "Following")) | |
1982 | i->following = s; | |
1983 | } | |
1984 | ||
1985 | break; | |
1986 | } | |
1987 | ||
1988 | case DBUS_TYPE_BOOLEAN: { | |
1989 | dbus_bool_t b; | |
1990 | ||
1991 | dbus_message_iter_get_basic(iter, &b); | |
1992 | ||
1993 | if (streq(name, "Accept")) | |
1994 | i->accept = b; | |
1995 | else if (streq(name, "NeedDaemonReload")) | |
1996 | i->need_daemon_reload = b; | |
1997 | ||
1998 | break; | |
1999 | } | |
2000 | ||
2001 | case DBUS_TYPE_UINT32: { | |
2002 | uint32_t u; | |
2003 | ||
2004 | dbus_message_iter_get_basic(iter, &u); | |
2005 | ||
2006 | if (streq(name, "MainPID")) { | |
2007 | if (u > 0) { | |
2008 | i->main_pid = (pid_t) u; | |
2009 | i->running = true; | |
2010 | } | |
2011 | } else if (streq(name, "ControlPID")) | |
2012 | i->control_pid = (pid_t) u; | |
2013 | else if (streq(name, "ExecMainPID")) { | |
2014 | if (u > 0) | |
2015 | i->main_pid = (pid_t) u; | |
2016 | } else if (streq(name, "NAccepted")) | |
2017 | i->n_accepted = u; | |
2018 | else if (streq(name, "NConnections")) | |
2019 | i->n_connections = u; | |
2020 | ||
2021 | break; | |
2022 | } | |
2023 | ||
2024 | case DBUS_TYPE_INT32: { | |
2025 | int32_t j; | |
2026 | ||
2027 | dbus_message_iter_get_basic(iter, &j); | |
2028 | ||
2029 | if (streq(name, "ExecMainCode")) | |
2030 | i->exit_code = (int) j; | |
2031 | else if (streq(name, "ExecMainStatus")) | |
2032 | i->exit_status = (int) j; | |
2033 | ||
2034 | break; | |
2035 | } | |
2036 | ||
2037 | case DBUS_TYPE_UINT64: { | |
2038 | uint64_t u; | |
2039 | ||
2040 | dbus_message_iter_get_basic(iter, &u); | |
2041 | ||
2042 | if (streq(name, "ExecMainStartTimestamp")) | |
2043 | i->start_timestamp = (usec_t) u; | |
2044 | else if (streq(name, "ExecMainExitTimestamp")) | |
2045 | i->exit_timestamp = (usec_t) u; | |
2046 | else if (streq(name, "ActiveEnterTimestamp")) | |
2047 | i->active_enter_timestamp = (usec_t) u; | |
2048 | else if (streq(name, "InactiveEnterTimestamp")) | |
2049 | i->inactive_enter_timestamp = (usec_t) u; | |
2050 | else if (streq(name, "InactiveExitTimestamp")) | |
2051 | i->inactive_exit_timestamp = (usec_t) u; | |
2052 | else if (streq(name, "ActiveExitTimestamp")) | |
2053 | i->active_exit_timestamp = (usec_t) u; | |
2054 | ||
2055 | break; | |
2056 | } | |
2057 | ||
2058 | case DBUS_TYPE_ARRAY: { | |
2059 | ||
2060 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && | |
2061 | startswith(name, "Exec")) { | |
2062 | DBusMessageIter sub; | |
2063 | ||
2064 | dbus_message_iter_recurse(iter, &sub); | |
2065 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2066 | ExecStatusInfo *info; | |
2067 | int r; | |
2068 | ||
2069 | if (!(info = new0(ExecStatusInfo, 1))) | |
2070 | return -ENOMEM; | |
2071 | ||
2072 | if ((r = exec_status_info_deserialize(&sub, info)) < 0) { | |
2073 | free(info); | |
2074 | return r; | |
2075 | } | |
2076 | ||
2077 | LIST_PREPEND(ExecStatusInfo, exec, i->exec, info); | |
2078 | ||
2079 | dbus_message_iter_next(&sub); | |
2080 | } | |
2081 | } | |
2082 | ||
2083 | break; | |
2084 | } | |
2085 | } | |
2086 | ||
2087 | return 0; | |
2088 | } | |
2089 | ||
2090 | static int print_property(const char *name, DBusMessageIter *iter) { | |
2091 | assert(name); | |
2092 | assert(iter); | |
2093 | ||
2094 | /* This is a low-level property printer, see | |
2095 | * print_status_info() for the nicer output */ | |
2096 | ||
2097 | if (arg_property && !strv_find(arg_property, name)) | |
2098 | return 0; | |
2099 | ||
2100 | switch (dbus_message_iter_get_arg_type(iter)) { | |
2101 | ||
2102 | case DBUS_TYPE_STRING: { | |
2103 | const char *s; | |
2104 | dbus_message_iter_get_basic(iter, &s); | |
2105 | ||
2106 | if (arg_all || s[0]) | |
2107 | printf("%s=%s\n", name, s); | |
2108 | ||
2109 | return 0; | |
2110 | } | |
2111 | ||
2112 | case DBUS_TYPE_BOOLEAN: { | |
2113 | dbus_bool_t b; | |
2114 | dbus_message_iter_get_basic(iter, &b); | |
2115 | printf("%s=%s\n", name, yes_no(b)); | |
2116 | ||
2117 | return 0; | |
2118 | } | |
2119 | ||
2120 | case DBUS_TYPE_UINT64: { | |
2121 | uint64_t u; | |
2122 | dbus_message_iter_get_basic(iter, &u); | |
2123 | ||
2124 | /* Yes, heuristics! But we can change this check | |
2125 | * should it turn out to not be sufficient */ | |
2126 | ||
2127 | if (strstr(name, "Timestamp")) { | |
2128 | char timestamp[FORMAT_TIMESTAMP_MAX], *t; | |
2129 | ||
2130 | if ((t = format_timestamp(timestamp, sizeof(timestamp), u)) || arg_all) | |
2131 | printf("%s=%s\n", name, strempty(t)); | |
2132 | } else if (strstr(name, "USec")) { | |
2133 | char timespan[FORMAT_TIMESPAN_MAX]; | |
2134 | ||
2135 | printf("%s=%s\n", name, format_timespan(timespan, sizeof(timespan), u)); | |
2136 | } else | |
2137 | printf("%s=%llu\n", name, (unsigned long long) u); | |
2138 | ||
2139 | return 0; | |
2140 | } | |
2141 | ||
2142 | case DBUS_TYPE_UINT32: { | |
2143 | uint32_t u; | |
2144 | dbus_message_iter_get_basic(iter, &u); | |
2145 | ||
2146 | if (strstr(name, "UMask") || strstr(name, "Mode")) | |
2147 | printf("%s=%04o\n", name, u); | |
2148 | else | |
2149 | printf("%s=%u\n", name, (unsigned) u); | |
2150 | ||
2151 | return 0; | |
2152 | } | |
2153 | ||
2154 | case DBUS_TYPE_INT32: { | |
2155 | int32_t i; | |
2156 | dbus_message_iter_get_basic(iter, &i); | |
2157 | ||
2158 | printf("%s=%i\n", name, (int) i); | |
2159 | return 0; | |
2160 | } | |
2161 | ||
2162 | case DBUS_TYPE_DOUBLE: { | |
2163 | double d; | |
2164 | dbus_message_iter_get_basic(iter, &d); | |
2165 | ||
2166 | printf("%s=%g\n", name, d); | |
2167 | return 0; | |
2168 | } | |
2169 | ||
2170 | case DBUS_TYPE_STRUCT: { | |
2171 | DBusMessageIter sub; | |
2172 | dbus_message_iter_recurse(iter, &sub); | |
2173 | ||
2174 | if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) { | |
2175 | uint32_t u; | |
2176 | ||
2177 | dbus_message_iter_get_basic(&sub, &u); | |
2178 | ||
2179 | if (u) | |
2180 | printf("%s=%u\n", name, (unsigned) u); | |
2181 | else if (arg_all) | |
2182 | printf("%s=\n", name); | |
2183 | ||
2184 | return 0; | |
2185 | } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) { | |
2186 | const char *s; | |
2187 | ||
2188 | dbus_message_iter_get_basic(&sub, &s); | |
2189 | ||
2190 | if (arg_all || s[0]) | |
2191 | printf("%s=%s\n", name, s); | |
2192 | ||
2193 | return 0; | |
2194 | } | |
2195 | ||
2196 | break; | |
2197 | } | |
2198 | ||
2199 | case DBUS_TYPE_ARRAY: | |
2200 | ||
2201 | if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) { | |
2202 | DBusMessageIter sub; | |
2203 | bool space = false; | |
2204 | ||
2205 | dbus_message_iter_recurse(iter, &sub); | |
2206 | if (arg_all || | |
2207 | dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2208 | printf("%s=", name); | |
2209 | ||
2210 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2211 | const char *s; | |
2212 | ||
2213 | assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING); | |
2214 | dbus_message_iter_get_basic(&sub, &s); | |
2215 | printf("%s%s", space ? " " : "", s); | |
2216 | ||
2217 | space = true; | |
2218 | dbus_message_iter_next(&sub); | |
2219 | } | |
2220 | ||
2221 | puts(""); | |
2222 | } | |
2223 | ||
2224 | return 0; | |
2225 | ||
2226 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_BYTE) { | |
2227 | DBusMessageIter sub; | |
2228 | ||
2229 | dbus_message_iter_recurse(iter, &sub); | |
2230 | if (arg_all || | |
2231 | dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2232 | printf("%s=", name); | |
2233 | ||
2234 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2235 | uint8_t u; | |
2236 | ||
2237 | assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_BYTE); | |
2238 | dbus_message_iter_get_basic(&sub, &u); | |
2239 | printf("%02x", u); | |
2240 | ||
2241 | dbus_message_iter_next(&sub); | |
2242 | } | |
2243 | ||
2244 | puts(""); | |
2245 | } | |
2246 | ||
2247 | return 0; | |
2248 | ||
2249 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) { | |
2250 | DBusMessageIter sub, sub2; | |
2251 | ||
2252 | dbus_message_iter_recurse(iter, &sub); | |
2253 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2254 | const char *type, *path; | |
2255 | ||
2256 | dbus_message_iter_recurse(&sub, &sub2); | |
2257 | ||
2258 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 && | |
2259 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0) | |
2260 | printf("%s=%s\n", type, path); | |
2261 | ||
2262 | dbus_message_iter_next(&sub); | |
2263 | } | |
2264 | ||
2265 | return 0; | |
2266 | ||
2267 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) { | |
2268 | DBusMessageIter sub, sub2; | |
2269 | ||
2270 | dbus_message_iter_recurse(iter, &sub); | |
2271 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2272 | const char *base; | |
2273 | uint64_t value, next_elapse; | |
2274 | ||
2275 | dbus_message_iter_recurse(&sub, &sub2); | |
2276 | ||
2277 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 && | |
2278 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 && | |
2279 | bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) { | |
2280 | char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX]; | |
2281 | ||
2282 | printf("%s={ value=%s ; next_elapse=%s }\n", | |
2283 | base, | |
2284 | format_timespan(timespan1, sizeof(timespan1), value), | |
2285 | format_timespan(timespan2, sizeof(timespan2), next_elapse)); | |
2286 | } | |
2287 | ||
2288 | dbus_message_iter_next(&sub); | |
2289 | } | |
2290 | ||
2291 | return 0; | |
2292 | ||
2293 | } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) { | |
2294 | DBusMessageIter sub; | |
2295 | ||
2296 | dbus_message_iter_recurse(iter, &sub); | |
2297 | while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) { | |
2298 | ExecStatusInfo info; | |
2299 | ||
2300 | zero(info); | |
2301 | if (exec_status_info_deserialize(&sub, &info) >= 0) { | |
2302 | char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX]; | |
2303 | char *t; | |
2304 | ||
2305 | t = strv_join(info.argv, " "); | |
2306 | ||
2307 | printf("%s={ path=%s ; argv[]=%s ; ignore=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n", | |
2308 | name, | |
2309 | strna(info.path), | |
2310 | strna(t), | |
2311 | yes_no(info.ignore), | |
2312 | strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)), | |
2313 | strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)), | |
2314 | (unsigned) info. pid, | |
2315 | sigchld_code_to_string(info.code), | |
2316 | info.status, | |
2317 | info.code == CLD_EXITED ? "" : "/", | |
2318 | strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status))); | |
2319 | ||
2320 | free(t); | |
2321 | } | |
2322 | ||
2323 | free(info.path); | |
2324 | strv_free(info.argv); | |
2325 | ||
2326 | dbus_message_iter_next(&sub); | |
2327 | } | |
2328 | ||
2329 | return 0; | |
2330 | } | |
2331 | ||
2332 | break; | |
2333 | } | |
2334 | ||
2335 | if (arg_all) | |
2336 | printf("%s=[unprintable]\n", name); | |
2337 | ||
2338 | return 0; | |
2339 | } | |
2340 | ||
2341 | static int show_one(DBusConnection *bus, const char *path, bool show_properties, bool *new_line) { | |
2342 | DBusMessage *m = NULL, *reply = NULL; | |
2343 | const char *interface = ""; | |
2344 | int r; | |
2345 | DBusError error; | |
2346 | DBusMessageIter iter, sub, sub2, sub3; | |
2347 | UnitStatusInfo info; | |
2348 | ExecStatusInfo *p; | |
2349 | ||
2350 | assert(bus); | |
2351 | assert(path); | |
2352 | assert(new_line); | |
2353 | ||
2354 | zero(info); | |
2355 | dbus_error_init(&error); | |
2356 | ||
2357 | if (!(m = dbus_message_new_method_call( | |
2358 | "org.freedesktop.systemd1", | |
2359 | path, | |
2360 | "org.freedesktop.DBus.Properties", | |
2361 | "GetAll"))) { | |
2362 | log_error("Could not allocate message."); | |
2363 | r = -ENOMEM; | |
2364 | goto finish; | |
2365 | } | |
2366 | ||
2367 | if (!dbus_message_append_args(m, | |
2368 | DBUS_TYPE_STRING, &interface, | |
2369 | DBUS_TYPE_INVALID)) { | |
2370 | log_error("Could not append arguments to message."); | |
2371 | r = -ENOMEM; | |
2372 | goto finish; | |
2373 | } | |
2374 | ||
2375 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2376 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2377 | r = -EIO; | |
2378 | goto finish; | |
2379 | } | |
2380 | ||
2381 | if (!dbus_message_iter_init(reply, &iter) || | |
2382 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY || | |
2383 | dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY) { | |
2384 | log_error("Failed to parse reply."); | |
2385 | r = -EIO; | |
2386 | goto finish; | |
2387 | } | |
2388 | ||
2389 | dbus_message_iter_recurse(&iter, &sub); | |
2390 | ||
2391 | if (*new_line) | |
2392 | printf("\n"); | |
2393 | ||
2394 | *new_line = true; | |
2395 | ||
2396 | while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) { | |
2397 | const char *name; | |
2398 | ||
2399 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) { | |
2400 | log_error("Failed to parse reply."); | |
2401 | r = -EIO; | |
2402 | goto finish; | |
2403 | } | |
2404 | ||
2405 | dbus_message_iter_recurse(&sub, &sub2); | |
2406 | ||
2407 | if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) { | |
2408 | log_error("Failed to parse reply."); | |
2409 | r = -EIO; | |
2410 | goto finish; | |
2411 | } | |
2412 | ||
2413 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT) { | |
2414 | log_error("Failed to parse reply."); | |
2415 | r = -EIO; | |
2416 | goto finish; | |
2417 | } | |
2418 | ||
2419 | dbus_message_iter_recurse(&sub2, &sub3); | |
2420 | ||
2421 | if (show_properties) | |
2422 | r = print_property(name, &sub3); | |
2423 | else | |
2424 | r = status_property(name, &sub3, &info); | |
2425 | ||
2426 | if (r < 0) { | |
2427 | log_error("Failed to parse reply."); | |
2428 | r = -EIO; | |
2429 | goto finish; | |
2430 | } | |
2431 | ||
2432 | dbus_message_iter_next(&sub); | |
2433 | } | |
2434 | ||
2435 | r = 0; | |
2436 | ||
2437 | if (!show_properties) | |
2438 | print_status_info(&info); | |
2439 | ||
2440 | if (!streq_ptr(info.active_state, "active") && | |
2441 | !streq_ptr(info.active_state, "reloading")) | |
2442 | /* According to LSB: "program not running" */ | |
2443 | r = 3; | |
2444 | ||
2445 | while ((p = info.exec)) { | |
2446 | LIST_REMOVE(ExecStatusInfo, exec, info.exec, p); | |
2447 | exec_status_info_free(p); | |
2448 | } | |
2449 | ||
2450 | finish: | |
2451 | if (m) | |
2452 | dbus_message_unref(m); | |
2453 | ||
2454 | if (reply) | |
2455 | dbus_message_unref(reply); | |
2456 | ||
2457 | dbus_error_free(&error); | |
2458 | ||
2459 | return r; | |
2460 | } | |
2461 | ||
2462 | static int show(DBusConnection *bus, char **args, unsigned n) { | |
2463 | DBusMessage *m = NULL, *reply = NULL; | |
2464 | int r, ret = 0; | |
2465 | DBusError error; | |
2466 | unsigned i; | |
2467 | bool show_properties, new_line = false; | |
2468 | ||
2469 | assert(bus); | |
2470 | assert(args); | |
2471 | ||
2472 | dbus_error_init(&error); | |
2473 | ||
2474 | show_properties = !streq(args[0], "status"); | |
2475 | ||
2476 | if (show_properties && n <= 1) { | |
2477 | /* If not argument is specified inspect the manager | |
2478 | * itself */ | |
2479 | ||
2480 | ret = show_one(bus, "/org/freedesktop/systemd1", show_properties, &new_line); | |
2481 | goto finish; | |
2482 | } | |
2483 | ||
2484 | for (i = 1; i < n; i++) { | |
2485 | const char *path = NULL; | |
2486 | uint32_t id; | |
2487 | ||
2488 | if (safe_atou32(args[i], &id) < 0) { | |
2489 | ||
2490 | /* Interpret as unit name */ | |
2491 | ||
2492 | if (!(m = dbus_message_new_method_call( | |
2493 | "org.freedesktop.systemd1", | |
2494 | "/org/freedesktop/systemd1", | |
2495 | "org.freedesktop.systemd1.Manager", | |
2496 | "LoadUnit"))) { | |
2497 | log_error("Could not allocate message."); | |
2498 | ret = -ENOMEM; | |
2499 | goto finish; | |
2500 | } | |
2501 | ||
2502 | if (!dbus_message_append_args(m, | |
2503 | DBUS_TYPE_STRING, &args[i], | |
2504 | DBUS_TYPE_INVALID)) { | |
2505 | log_error("Could not append arguments to message."); | |
2506 | ret = -ENOMEM; | |
2507 | goto finish; | |
2508 | } | |
2509 | ||
2510 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2511 | ||
2512 | if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) { | |
2513 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2514 | ret = -EIO; | |
2515 | goto finish; | |
2516 | } | |
2517 | ||
2518 | dbus_error_free(&error); | |
2519 | ||
2520 | dbus_message_unref(m); | |
2521 | if (!(m = dbus_message_new_method_call( | |
2522 | "org.freedesktop.systemd1", | |
2523 | "/org/freedesktop/systemd1", | |
2524 | "org.freedesktop.systemd1.Manager", | |
2525 | "GetUnit"))) { | |
2526 | log_error("Could not allocate message."); | |
2527 | ret = -ENOMEM; | |
2528 | goto finish; | |
2529 | } | |
2530 | ||
2531 | if (!dbus_message_append_args(m, | |
2532 | DBUS_TYPE_STRING, &args[i], | |
2533 | DBUS_TYPE_INVALID)) { | |
2534 | log_error("Could not append arguments to message."); | |
2535 | ret = -ENOMEM; | |
2536 | goto finish; | |
2537 | } | |
2538 | ||
2539 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2540 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2541 | ||
2542 | if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT)) | |
2543 | ret = 4; /* According to LSB: "program or service status is unknown" */ | |
2544 | else | |
2545 | ret = -EIO; | |
2546 | goto finish; | |
2547 | } | |
2548 | } | |
2549 | ||
2550 | } else if (show_properties) { | |
2551 | ||
2552 | /* Interpret as job id */ | |
2553 | ||
2554 | if (!(m = dbus_message_new_method_call( | |
2555 | "org.freedesktop.systemd1", | |
2556 | "/org/freedesktop/systemd1", | |
2557 | "org.freedesktop.systemd1.Manager", | |
2558 | "GetJob"))) { | |
2559 | log_error("Could not allocate message."); | |
2560 | ret = -ENOMEM; | |
2561 | goto finish; | |
2562 | } | |
2563 | ||
2564 | if (!dbus_message_append_args(m, | |
2565 | DBUS_TYPE_UINT32, &id, | |
2566 | DBUS_TYPE_INVALID)) { | |
2567 | log_error("Could not append arguments to message."); | |
2568 | ret = -ENOMEM; | |
2569 | goto finish; | |
2570 | } | |
2571 | ||
2572 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2573 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2574 | ret = -EIO; | |
2575 | goto finish; | |
2576 | } | |
2577 | } else { | |
2578 | ||
2579 | /* Interpret as PID */ | |
2580 | ||
2581 | if (!(m = dbus_message_new_method_call( | |
2582 | "org.freedesktop.systemd1", | |
2583 | "/org/freedesktop/systemd1", | |
2584 | "org.freedesktop.systemd1.Manager", | |
2585 | "GetUnitByPID"))) { | |
2586 | log_error("Could not allocate message."); | |
2587 | ret = -ENOMEM; | |
2588 | goto finish; | |
2589 | } | |
2590 | ||
2591 | if (!dbus_message_append_args(m, | |
2592 | DBUS_TYPE_UINT32, &id, | |
2593 | DBUS_TYPE_INVALID)) { | |
2594 | log_error("Could not append arguments to message."); | |
2595 | ret = -ENOMEM; | |
2596 | goto finish; | |
2597 | } | |
2598 | ||
2599 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2600 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2601 | ret = -EIO; | |
2602 | goto finish; | |
2603 | } | |
2604 | } | |
2605 | ||
2606 | if (!dbus_message_get_args(reply, &error, | |
2607 | DBUS_TYPE_OBJECT_PATH, &path, | |
2608 | DBUS_TYPE_INVALID)) { | |
2609 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
2610 | ret = -EIO; | |
2611 | goto finish; | |
2612 | } | |
2613 | ||
2614 | if ((r = show_one(bus, path, show_properties, &new_line)) != 0) | |
2615 | ret = r; | |
2616 | ||
2617 | dbus_message_unref(m); | |
2618 | dbus_message_unref(reply); | |
2619 | m = reply = NULL; | |
2620 | } | |
2621 | ||
2622 | finish: | |
2623 | if (m) | |
2624 | dbus_message_unref(m); | |
2625 | ||
2626 | if (reply) | |
2627 | dbus_message_unref(reply); | |
2628 | ||
2629 | dbus_error_free(&error); | |
2630 | ||
2631 | return ret; | |
2632 | } | |
2633 | ||
2634 | static DBusHandlerResult monitor_filter(DBusConnection *connection, DBusMessage *message, void *data) { | |
2635 | DBusError error; | |
2636 | DBusMessage *m = NULL, *reply = NULL; | |
2637 | ||
2638 | assert(connection); | |
2639 | assert(message); | |
2640 | ||
2641 | dbus_error_init(&error); | |
2642 | ||
2643 | log_debug("Got D-Bus request: %s.%s() on %s", | |
2644 | dbus_message_get_interface(message), | |
2645 | dbus_message_get_member(message), | |
2646 | dbus_message_get_path(message)); | |
2647 | ||
2648 | if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) { | |
2649 | log_error("Warning! D-Bus connection terminated."); | |
2650 | dbus_connection_close(connection); | |
2651 | ||
2652 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitNew") || | |
2653 | dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "UnitRemoved")) { | |
2654 | const char *id, *path; | |
2655 | ||
2656 | if (!dbus_message_get_args(message, &error, | |
2657 | DBUS_TYPE_STRING, &id, | |
2658 | DBUS_TYPE_OBJECT_PATH, &path, | |
2659 | DBUS_TYPE_INVALID)) | |
2660 | log_error("Failed to parse message: %s", bus_error_message(&error)); | |
2661 | else if (streq(dbus_message_get_member(message), "UnitNew")) | |
2662 | printf("Unit %s added.\n", id); | |
2663 | else | |
2664 | printf("Unit %s removed.\n", id); | |
2665 | ||
2666 | } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobNew") || | |
2667 | dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) { | |
2668 | uint32_t id; | |
2669 | const char *path; | |
2670 | ||
2671 | if (!dbus_message_get_args(message, &error, | |
2672 | DBUS_TYPE_UINT32, &id, | |
2673 | DBUS_TYPE_OBJECT_PATH, &path, | |
2674 | DBUS_TYPE_INVALID)) | |
2675 | log_error("Failed to parse message: %s", bus_error_message(&error)); | |
2676 | else if (streq(dbus_message_get_member(message), "JobNew")) | |
2677 | printf("Job %u added.\n", id); | |
2678 | else | |
2679 | printf("Job %u removed.\n", id); | |
2680 | ||
2681 | ||
2682 | } else if (dbus_message_is_signal(message, "org.freedesktop.DBus.Properties", "PropertiesChanged")) { | |
2683 | ||
2684 | const char *path, *interface, *property = "Id"; | |
2685 | DBusMessageIter iter, sub; | |
2686 | ||
2687 | path = dbus_message_get_path(message); | |
2688 | ||
2689 | if (!dbus_message_get_args(message, &error, | |
2690 | DBUS_TYPE_STRING, &interface, | |
2691 | DBUS_TYPE_INVALID)) { | |
2692 | log_error("Failed to parse message: %s", bus_error_message(&error)); | |
2693 | goto finish; | |
2694 | } | |
2695 | ||
2696 | if (!streq(interface, "org.freedesktop.systemd1.Job") && | |
2697 | !streq(interface, "org.freedesktop.systemd1.Unit")) | |
2698 | goto finish; | |
2699 | ||
2700 | if (!(m = dbus_message_new_method_call( | |
2701 | "org.freedesktop.systemd1", | |
2702 | path, | |
2703 | "org.freedesktop.DBus.Properties", | |
2704 | "Get"))) { | |
2705 | log_error("Could not allocate message."); | |
2706 | goto oom; | |
2707 | } | |
2708 | ||
2709 | if (!dbus_message_append_args(m, | |
2710 | DBUS_TYPE_STRING, &interface, | |
2711 | DBUS_TYPE_STRING, &property, | |
2712 | DBUS_TYPE_INVALID)) { | |
2713 | log_error("Could not append arguments to message."); | |
2714 | goto finish; | |
2715 | } | |
2716 | ||
2717 | if (!(reply = dbus_connection_send_with_reply_and_block(connection, m, -1, &error))) { | |
2718 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2719 | goto finish; | |
2720 | } | |
2721 | ||
2722 | if (!dbus_message_iter_init(reply, &iter) || | |
2723 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
2724 | log_error("Failed to parse reply."); | |
2725 | goto finish; | |
2726 | } | |
2727 | ||
2728 | dbus_message_iter_recurse(&iter, &sub); | |
2729 | ||
2730 | if (streq(interface, "org.freedesktop.systemd1.Unit")) { | |
2731 | const char *id; | |
2732 | ||
2733 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
2734 | log_error("Failed to parse reply."); | |
2735 | goto finish; | |
2736 | } | |
2737 | ||
2738 | dbus_message_iter_get_basic(&sub, &id); | |
2739 | printf("Unit %s changed.\n", id); | |
2740 | } else { | |
2741 | uint32_t id; | |
2742 | ||
2743 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_UINT32) { | |
2744 | log_error("Failed to parse reply."); | |
2745 | goto finish; | |
2746 | } | |
2747 | ||
2748 | dbus_message_iter_get_basic(&sub, &id); | |
2749 | printf("Job %u changed.\n", id); | |
2750 | } | |
2751 | } | |
2752 | ||
2753 | finish: | |
2754 | if (m) | |
2755 | dbus_message_unref(m); | |
2756 | ||
2757 | if (reply) | |
2758 | dbus_message_unref(reply); | |
2759 | ||
2760 | dbus_error_free(&error); | |
2761 | return DBUS_HANDLER_RESULT_NOT_YET_HANDLED; | |
2762 | ||
2763 | oom: | |
2764 | if (m) | |
2765 | dbus_message_unref(m); | |
2766 | ||
2767 | if (reply) | |
2768 | dbus_message_unref(reply); | |
2769 | ||
2770 | dbus_error_free(&error); | |
2771 | return DBUS_HANDLER_RESULT_NEED_MEMORY; | |
2772 | } | |
2773 | ||
2774 | static int monitor(DBusConnection *bus, char **args, unsigned n) { | |
2775 | DBusMessage *m = NULL, *reply = NULL; | |
2776 | DBusError error; | |
2777 | int r; | |
2778 | ||
2779 | dbus_error_init(&error); | |
2780 | ||
2781 | if (!private_bus) { | |
2782 | dbus_bus_add_match(bus, | |
2783 | "type='signal'," | |
2784 | "sender='org.freedesktop.systemd1'," | |
2785 | "interface='org.freedesktop.systemd1.Manager'," | |
2786 | "path='/org/freedesktop/systemd1'", | |
2787 | &error); | |
2788 | ||
2789 | if (dbus_error_is_set(&error)) { | |
2790 | log_error("Failed to add match: %s", bus_error_message(&error)); | |
2791 | r = -EIO; | |
2792 | goto finish; | |
2793 | } | |
2794 | ||
2795 | dbus_bus_add_match(bus, | |
2796 | "type='signal'," | |
2797 | "sender='org.freedesktop.systemd1'," | |
2798 | "interface='org.freedesktop.DBus.Properties'," | |
2799 | "member='PropertiesChanged'", | |
2800 | &error); | |
2801 | ||
2802 | if (dbus_error_is_set(&error)) { | |
2803 | log_error("Failed to add match: %s", bus_error_message(&error)); | |
2804 | r = -EIO; | |
2805 | goto finish; | |
2806 | } | |
2807 | } | |
2808 | ||
2809 | if (!dbus_connection_add_filter(bus, monitor_filter, NULL, NULL)) { | |
2810 | log_error("Failed to add filter."); | |
2811 | r = -ENOMEM; | |
2812 | goto finish; | |
2813 | } | |
2814 | ||
2815 | if (!(m = dbus_message_new_method_call( | |
2816 | "org.freedesktop.systemd1", | |
2817 | "/org/freedesktop/systemd1", | |
2818 | "org.freedesktop.systemd1.Manager", | |
2819 | "Subscribe"))) { | |
2820 | log_error("Could not allocate message."); | |
2821 | r = -ENOMEM; | |
2822 | goto finish; | |
2823 | } | |
2824 | ||
2825 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2826 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2827 | r = -EIO; | |
2828 | goto finish; | |
2829 | } | |
2830 | ||
2831 | while (dbus_connection_read_write_dispatch(bus, -1)) | |
2832 | ; | |
2833 | ||
2834 | r = 0; | |
2835 | ||
2836 | finish: | |
2837 | ||
2838 | /* This is slightly dirty, since we don't undo the filter or the matches. */ | |
2839 | ||
2840 | if (m) | |
2841 | dbus_message_unref(m); | |
2842 | ||
2843 | if (reply) | |
2844 | dbus_message_unref(reply); | |
2845 | ||
2846 | dbus_error_free(&error); | |
2847 | ||
2848 | return r; | |
2849 | } | |
2850 | ||
2851 | static int dump(DBusConnection *bus, char **args, unsigned n) { | |
2852 | DBusMessage *m = NULL, *reply = NULL; | |
2853 | DBusError error; | |
2854 | int r; | |
2855 | const char *text; | |
2856 | ||
2857 | dbus_error_init(&error); | |
2858 | ||
2859 | if (!(m = dbus_message_new_method_call( | |
2860 | "org.freedesktop.systemd1", | |
2861 | "/org/freedesktop/systemd1", | |
2862 | "org.freedesktop.systemd1.Manager", | |
2863 | "Dump"))) { | |
2864 | log_error("Could not allocate message."); | |
2865 | return -ENOMEM; | |
2866 | } | |
2867 | ||
2868 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2869 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2870 | r = -EIO; | |
2871 | goto finish; | |
2872 | } | |
2873 | ||
2874 | if (!dbus_message_get_args(reply, &error, | |
2875 | DBUS_TYPE_STRING, &text, | |
2876 | DBUS_TYPE_INVALID)) { | |
2877 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
2878 | r = -EIO; | |
2879 | goto finish; | |
2880 | } | |
2881 | ||
2882 | fputs(text, stdout); | |
2883 | ||
2884 | r = 0; | |
2885 | ||
2886 | finish: | |
2887 | if (m) | |
2888 | dbus_message_unref(m); | |
2889 | ||
2890 | if (reply) | |
2891 | dbus_message_unref(reply); | |
2892 | ||
2893 | dbus_error_free(&error); | |
2894 | ||
2895 | return r; | |
2896 | } | |
2897 | ||
2898 | static int snapshot(DBusConnection *bus, char **args, unsigned n) { | |
2899 | DBusMessage *m = NULL, *reply = NULL; | |
2900 | DBusError error; | |
2901 | int r; | |
2902 | const char *name = "", *path, *id; | |
2903 | dbus_bool_t cleanup = FALSE; | |
2904 | DBusMessageIter iter, sub; | |
2905 | const char | |
2906 | *interface = "org.freedesktop.systemd1.Unit", | |
2907 | *property = "Id"; | |
2908 | ||
2909 | dbus_error_init(&error); | |
2910 | ||
2911 | if (!(m = dbus_message_new_method_call( | |
2912 | "org.freedesktop.systemd1", | |
2913 | "/org/freedesktop/systemd1", | |
2914 | "org.freedesktop.systemd1.Manager", | |
2915 | "CreateSnapshot"))) { | |
2916 | log_error("Could not allocate message."); | |
2917 | return -ENOMEM; | |
2918 | } | |
2919 | ||
2920 | if (n > 1) | |
2921 | name = args[1]; | |
2922 | ||
2923 | if (!dbus_message_append_args(m, | |
2924 | DBUS_TYPE_STRING, &name, | |
2925 | DBUS_TYPE_BOOLEAN, &cleanup, | |
2926 | DBUS_TYPE_INVALID)) { | |
2927 | log_error("Could not append arguments to message."); | |
2928 | r = -ENOMEM; | |
2929 | goto finish; | |
2930 | } | |
2931 | ||
2932 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2933 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2934 | r = -EIO; | |
2935 | goto finish; | |
2936 | } | |
2937 | ||
2938 | if (!dbus_message_get_args(reply, &error, | |
2939 | DBUS_TYPE_OBJECT_PATH, &path, | |
2940 | DBUS_TYPE_INVALID)) { | |
2941 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
2942 | r = -EIO; | |
2943 | goto finish; | |
2944 | } | |
2945 | ||
2946 | dbus_message_unref(m); | |
2947 | if (!(m = dbus_message_new_method_call( | |
2948 | "org.freedesktop.systemd1", | |
2949 | path, | |
2950 | "org.freedesktop.DBus.Properties", | |
2951 | "Get"))) { | |
2952 | log_error("Could not allocate message."); | |
2953 | return -ENOMEM; | |
2954 | } | |
2955 | ||
2956 | if (!dbus_message_append_args(m, | |
2957 | DBUS_TYPE_STRING, &interface, | |
2958 | DBUS_TYPE_STRING, &property, | |
2959 | DBUS_TYPE_INVALID)) { | |
2960 | log_error("Could not append arguments to message."); | |
2961 | r = -ENOMEM; | |
2962 | goto finish; | |
2963 | } | |
2964 | ||
2965 | dbus_message_unref(reply); | |
2966 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
2967 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
2968 | r = -EIO; | |
2969 | goto finish; | |
2970 | } | |
2971 | ||
2972 | if (!dbus_message_iter_init(reply, &iter) || | |
2973 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
2974 | log_error("Failed to parse reply."); | |
2975 | r = -EIO; | |
2976 | goto finish; | |
2977 | } | |
2978 | ||
2979 | dbus_message_iter_recurse(&iter, &sub); | |
2980 | ||
2981 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING) { | |
2982 | log_error("Failed to parse reply."); | |
2983 | r = -EIO; | |
2984 | goto finish; | |
2985 | } | |
2986 | ||
2987 | dbus_message_iter_get_basic(&sub, &id); | |
2988 | ||
2989 | if (!arg_quiet) | |
2990 | puts(id); | |
2991 | r = 0; | |
2992 | ||
2993 | finish: | |
2994 | if (m) | |
2995 | dbus_message_unref(m); | |
2996 | ||
2997 | if (reply) | |
2998 | dbus_message_unref(reply); | |
2999 | ||
3000 | dbus_error_free(&error); | |
3001 | ||
3002 | return r; | |
3003 | } | |
3004 | ||
3005 | static int delete_snapshot(DBusConnection *bus, char **args, unsigned n) { | |
3006 | DBusMessage *m = NULL, *reply = NULL; | |
3007 | int r; | |
3008 | DBusError error; | |
3009 | unsigned i; | |
3010 | ||
3011 | assert(bus); | |
3012 | assert(args); | |
3013 | ||
3014 | dbus_error_init(&error); | |
3015 | ||
3016 | for (i = 1; i < n; i++) { | |
3017 | const char *path = NULL; | |
3018 | ||
3019 | if (!(m = dbus_message_new_method_call( | |
3020 | "org.freedesktop.systemd1", | |
3021 | "/org/freedesktop/systemd1", | |
3022 | "org.freedesktop.systemd1.Manager", | |
3023 | "GetUnit"))) { | |
3024 | log_error("Could not allocate message."); | |
3025 | r = -ENOMEM; | |
3026 | goto finish; | |
3027 | } | |
3028 | ||
3029 | if (!dbus_message_append_args(m, | |
3030 | DBUS_TYPE_STRING, &args[i], | |
3031 | DBUS_TYPE_INVALID)) { | |
3032 | log_error("Could not append arguments to message."); | |
3033 | r = -ENOMEM; | |
3034 | goto finish; | |
3035 | } | |
3036 | ||
3037 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3038 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3039 | r = -EIO; | |
3040 | goto finish; | |
3041 | } | |
3042 | ||
3043 | if (!dbus_message_get_args(reply, &error, | |
3044 | DBUS_TYPE_OBJECT_PATH, &path, | |
3045 | DBUS_TYPE_INVALID)) { | |
3046 | log_error("Failed to parse reply: %s", bus_error_message(&error)); | |
3047 | r = -EIO; | |
3048 | goto finish; | |
3049 | } | |
3050 | ||
3051 | dbus_message_unref(m); | |
3052 | if (!(m = dbus_message_new_method_call( | |
3053 | "org.freedesktop.systemd1", | |
3054 | path, | |
3055 | "org.freedesktop.systemd1.Snapshot", | |
3056 | "Remove"))) { | |
3057 | log_error("Could not allocate message."); | |
3058 | r = -ENOMEM; | |
3059 | goto finish; | |
3060 | } | |
3061 | ||
3062 | dbus_message_unref(reply); | |
3063 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3064 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3065 | r = -EIO; | |
3066 | goto finish; | |
3067 | } | |
3068 | ||
3069 | dbus_message_unref(m); | |
3070 | dbus_message_unref(reply); | |
3071 | m = reply = NULL; | |
3072 | } | |
3073 | ||
3074 | r = 0; | |
3075 | ||
3076 | finish: | |
3077 | if (m) | |
3078 | dbus_message_unref(m); | |
3079 | ||
3080 | if (reply) | |
3081 | dbus_message_unref(reply); | |
3082 | ||
3083 | dbus_error_free(&error); | |
3084 | ||
3085 | return r; | |
3086 | } | |
3087 | ||
3088 | static int daemon_reload(DBusConnection *bus, char **args, unsigned n) { | |
3089 | DBusMessage *m = NULL, *reply = NULL; | |
3090 | DBusError error; | |
3091 | int r; | |
3092 | const char *method; | |
3093 | ||
3094 | dbus_error_init(&error); | |
3095 | ||
3096 | if (arg_action == ACTION_RELOAD) | |
3097 | method = "Reload"; | |
3098 | else if (arg_action == ACTION_REEXEC) | |
3099 | method = "Reexecute"; | |
3100 | else { | |
3101 | assert(arg_action == ACTION_SYSTEMCTL); | |
3102 | ||
3103 | method = | |
3104 | streq(args[0], "clear-jobs") || | |
3105 | streq(args[0], "cancel") ? "ClearJobs" : | |
3106 | streq(args[0], "daemon-reexec") ? "Reexecute" : | |
3107 | streq(args[0], "reset-failed") ? "ResetFailed" : | |
3108 | streq(args[0], "halt") ? "Halt" : | |
3109 | streq(args[0], "poweroff") ? "PowerOff" : | |
3110 | streq(args[0], "reboot") ? "Reboot" : | |
3111 | streq(args[0], "kexec") ? "KExec" : | |
3112 | streq(args[0], "exit") ? "Exit" : | |
3113 | /* "daemon-reload" */ "Reload"; | |
3114 | } | |
3115 | ||
3116 | if (!(m = dbus_message_new_method_call( | |
3117 | "org.freedesktop.systemd1", | |
3118 | "/org/freedesktop/systemd1", | |
3119 | "org.freedesktop.systemd1.Manager", | |
3120 | method))) { | |
3121 | log_error("Could not allocate message."); | |
3122 | return -ENOMEM; | |
3123 | } | |
3124 | ||
3125 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3126 | ||
3127 | if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) { | |
3128 | /* There's always a fallback possible for | |
3129 | * legacy actions. */ | |
3130 | r = -EADDRNOTAVAIL; | |
3131 | goto finish; | |
3132 | } | |
3133 | ||
3134 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3135 | r = -EIO; | |
3136 | goto finish; | |
3137 | } | |
3138 | ||
3139 | r = 0; | |
3140 | ||
3141 | finish: | |
3142 | if (m) | |
3143 | dbus_message_unref(m); | |
3144 | ||
3145 | if (reply) | |
3146 | dbus_message_unref(reply); | |
3147 | ||
3148 | dbus_error_free(&error); | |
3149 | ||
3150 | return r; | |
3151 | } | |
3152 | ||
3153 | static int reset_failed(DBusConnection *bus, char **args, unsigned n) { | |
3154 | DBusMessage *m = NULL, *reply = NULL; | |
3155 | unsigned i; | |
3156 | int r; | |
3157 | DBusError error; | |
3158 | ||
3159 | assert(bus); | |
3160 | dbus_error_init(&error); | |
3161 | ||
3162 | if (n <= 1) | |
3163 | return daemon_reload(bus, args, n); | |
3164 | ||
3165 | for (i = 1; i < n; i++) { | |
3166 | ||
3167 | if (!(m = dbus_message_new_method_call( | |
3168 | "org.freedesktop.systemd1", | |
3169 | "/org/freedesktop/systemd1", | |
3170 | "org.freedesktop.systemd1.Manager", | |
3171 | "ResetFailedUnit"))) { | |
3172 | log_error("Could not allocate message."); | |
3173 | r = -ENOMEM; | |
3174 | goto finish; | |
3175 | } | |
3176 | ||
3177 | if (!dbus_message_append_args(m, | |
3178 | DBUS_TYPE_STRING, args + i, | |
3179 | DBUS_TYPE_INVALID)) { | |
3180 | log_error("Could not append arguments to message."); | |
3181 | r = -ENOMEM; | |
3182 | goto finish; | |
3183 | } | |
3184 | ||
3185 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3186 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3187 | r = -EIO; | |
3188 | goto finish; | |
3189 | } | |
3190 | ||
3191 | dbus_message_unref(m); | |
3192 | dbus_message_unref(reply); | |
3193 | m = reply = NULL; | |
3194 | } | |
3195 | ||
3196 | r = 0; | |
3197 | ||
3198 | finish: | |
3199 | if (m) | |
3200 | dbus_message_unref(m); | |
3201 | ||
3202 | if (reply) | |
3203 | dbus_message_unref(reply); | |
3204 | ||
3205 | dbus_error_free(&error); | |
3206 | ||
3207 | return r; | |
3208 | } | |
3209 | ||
3210 | static int show_enviroment(DBusConnection *bus, char **args, unsigned n) { | |
3211 | DBusMessage *m = NULL, *reply = NULL; | |
3212 | DBusError error; | |
3213 | DBusMessageIter iter, sub, sub2; | |
3214 | int r; | |
3215 | const char | |
3216 | *interface = "org.freedesktop.systemd1.Manager", | |
3217 | *property = "Environment"; | |
3218 | ||
3219 | dbus_error_init(&error); | |
3220 | ||
3221 | if (!(m = dbus_message_new_method_call( | |
3222 | "org.freedesktop.systemd1", | |
3223 | "/org/freedesktop/systemd1", | |
3224 | "org.freedesktop.DBus.Properties", | |
3225 | "Get"))) { | |
3226 | log_error("Could not allocate message."); | |
3227 | return -ENOMEM; | |
3228 | } | |
3229 | ||
3230 | if (!dbus_message_append_args(m, | |
3231 | DBUS_TYPE_STRING, &interface, | |
3232 | DBUS_TYPE_STRING, &property, | |
3233 | DBUS_TYPE_INVALID)) { | |
3234 | log_error("Could not append arguments to message."); | |
3235 | r = -ENOMEM; | |
3236 | goto finish; | |
3237 | } | |
3238 | ||
3239 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3240 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3241 | r = -EIO; | |
3242 | goto finish; | |
3243 | } | |
3244 | ||
3245 | if (!dbus_message_iter_init(reply, &iter) || | |
3246 | dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT) { | |
3247 | log_error("Failed to parse reply."); | |
3248 | r = -EIO; | |
3249 | goto finish; | |
3250 | } | |
3251 | ||
3252 | dbus_message_iter_recurse(&iter, &sub); | |
3253 | ||
3254 | if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY || | |
3255 | dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING) { | |
3256 | log_error("Failed to parse reply."); | |
3257 | r = -EIO; | |
3258 | goto finish; | |
3259 | } | |
3260 | ||
3261 | dbus_message_iter_recurse(&sub, &sub2); | |
3262 | ||
3263 | while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) { | |
3264 | const char *text; | |
3265 | ||
3266 | if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) { | |
3267 | log_error("Failed to parse reply."); | |
3268 | r = -EIO; | |
3269 | goto finish; | |
3270 | } | |
3271 | ||
3272 | dbus_message_iter_get_basic(&sub2, &text); | |
3273 | printf("%s\n", text); | |
3274 | ||
3275 | dbus_message_iter_next(&sub2); | |
3276 | } | |
3277 | ||
3278 | r = 0; | |
3279 | ||
3280 | finish: | |
3281 | if (m) | |
3282 | dbus_message_unref(m); | |
3283 | ||
3284 | if (reply) | |
3285 | dbus_message_unref(reply); | |
3286 | ||
3287 | dbus_error_free(&error); | |
3288 | ||
3289 | return r; | |
3290 | } | |
3291 | ||
3292 | static int set_environment(DBusConnection *bus, char **args, unsigned n) { | |
3293 | DBusMessage *m = NULL, *reply = NULL; | |
3294 | DBusError error; | |
3295 | int r; | |
3296 | const char *method; | |
3297 | DBusMessageIter iter, sub; | |
3298 | unsigned i; | |
3299 | ||
3300 | dbus_error_init(&error); | |
3301 | ||
3302 | method = streq(args[0], "set-environment") | |
3303 | ? "SetEnvironment" | |
3304 | : "UnsetEnvironment"; | |
3305 | ||
3306 | if (!(m = dbus_message_new_method_call( | |
3307 | "org.freedesktop.systemd1", | |
3308 | "/org/freedesktop/systemd1", | |
3309 | "org.freedesktop.systemd1.Manager", | |
3310 | method))) { | |
3311 | ||
3312 | log_error("Could not allocate message."); | |
3313 | return -ENOMEM; | |
3314 | } | |
3315 | ||
3316 | dbus_message_iter_init_append(m, &iter); | |
3317 | ||
3318 | if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) { | |
3319 | log_error("Could not append arguments to message."); | |
3320 | r = -ENOMEM; | |
3321 | goto finish; | |
3322 | } | |
3323 | ||
3324 | for (i = 1; i < n; i++) | |
3325 | if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &args[i])) { | |
3326 | log_error("Could not append arguments to message."); | |
3327 | r = -ENOMEM; | |
3328 | goto finish; | |
3329 | } | |
3330 | ||
3331 | if (!dbus_message_iter_close_container(&iter, &sub)) { | |
3332 | log_error("Could not append arguments to message."); | |
3333 | r = -ENOMEM; | |
3334 | goto finish; | |
3335 | } | |
3336 | ||
3337 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
3338 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
3339 | r = -EIO; | |
3340 | goto finish; | |
3341 | } | |
3342 | ||
3343 | r = 0; | |
3344 | ||
3345 | finish: | |
3346 | if (m) | |
3347 | dbus_message_unref(m); | |
3348 | ||
3349 | if (reply) | |
3350 | dbus_message_unref(reply); | |
3351 | ||
3352 | dbus_error_free(&error); | |
3353 | ||
3354 | return r; | |
3355 | } | |
3356 | ||
3357 | typedef struct { | |
3358 | char *name; | |
3359 | char *path; | |
3360 | ||
3361 | char **aliases; | |
3362 | char **wanted_by; | |
3363 | } InstallInfo; | |
3364 | ||
3365 | static Hashmap *will_install = NULL, *have_installed = NULL; | |
3366 | static Set *remove_symlinks_to = NULL; | |
3367 | static unsigned n_symlinks = 0; | |
3368 | ||
3369 | static void install_info_free(InstallInfo *i) { | |
3370 | assert(i); | |
3371 | ||
3372 | free(i->name); | |
3373 | free(i->path); | |
3374 | strv_free(i->aliases); | |
3375 | strv_free(i->wanted_by); | |
3376 | free(i); | |
3377 | } | |
3378 | ||
3379 | static void install_info_hashmap_free(Hashmap *m) { | |
3380 | InstallInfo *i; | |
3381 | ||
3382 | while ((i = hashmap_steal_first(m))) | |
3383 | install_info_free(i); | |
3384 | ||
3385 | hashmap_free(m); | |
3386 | } | |
3387 | ||
3388 | static int install_info_add(const char *name) { | |
3389 | InstallInfo *i; | |
3390 | int r; | |
3391 | ||
3392 | assert(will_install); | |
3393 | ||
3394 | if (!unit_name_is_valid_no_type(name, true)) { | |
3395 | log_warning("Unit name %s is not a valid unit name.", name); | |
3396 | return -EINVAL; | |
3397 | } | |
3398 | ||
3399 | if (hashmap_get(have_installed, name) || | |
3400 | hashmap_get(will_install, name)) | |
3401 | return 0; | |
3402 | ||
3403 | if (!(i = new0(InstallInfo, 1))) { | |
3404 | r = -ENOMEM; | |
3405 | goto fail; | |
3406 | } | |
3407 | ||
3408 | if (!(i->name = strdup(name))) { | |
3409 | r = -ENOMEM; | |
3410 | goto fail; | |
3411 | } | |
3412 | ||
3413 | if ((r = hashmap_put(will_install, i->name, i)) < 0) | |
3414 | goto fail; | |
3415 | ||
3416 | return 0; | |
3417 | ||
3418 | fail: | |
3419 | if (i) | |
3420 | install_info_free(i); | |
3421 | ||
3422 | return r; | |
3423 | } | |
3424 | ||
3425 | static int config_parse_also( | |
3426 | const char *filename, | |
3427 | unsigned line, | |
3428 | const char *section, | |
3429 | const char *lvalue, | |
3430 | const char *rvalue, | |
3431 | void *data, | |
3432 | void *userdata) { | |
3433 | ||
3434 | char *w; | |
3435 | size_t l; | |
3436 | char *state; | |
3437 | ||
3438 | assert(filename); | |
3439 | assert(lvalue); | |
3440 | assert(rvalue); | |
3441 | ||
3442 | FOREACH_WORD_QUOTED(w, l, rvalue, state) { | |
3443 | char *n; | |
3444 | int r; | |
3445 | ||
3446 | if (!(n = strndup(w, l))) | |
3447 | return -ENOMEM; | |
3448 | ||
3449 | if ((r = install_info_add(n)) < 0) { | |
3450 | log_warning("Cannot install unit %s: %s", n, strerror(-r)); | |
3451 | free(n); | |
3452 | return r; | |
3453 | } | |
3454 | ||
3455 | free(n); | |
3456 | } | |
3457 | ||
3458 | return 0; | |
3459 | } | |
3460 | ||
3461 | static int mark_symlink_for_removal(const char *p) { | |
3462 | char *n; | |
3463 | int r; | |
3464 | ||
3465 | assert(p); | |
3466 | assert(path_is_absolute(p)); | |
3467 | ||
3468 | if (!remove_symlinks_to) | |
3469 | return 0; | |
3470 | ||
3471 | if (!(n = strdup(p))) | |
3472 | return -ENOMEM; | |
3473 | ||
3474 | path_kill_slashes(n); | |
3475 | ||
3476 | if ((r = set_put(remove_symlinks_to, n)) < 0) { | |
3477 | free(n); | |
3478 | return r == -EEXIST ? 0 : r; | |
3479 | } | |
3480 | ||
3481 | return 0; | |
3482 | } | |
3483 | ||
3484 | static int remove_marked_symlinks_fd(int fd, const char *config_path, const char *root, bool *deleted) { | |
3485 | int r = 0; | |
3486 | DIR *d; | |
3487 | struct dirent *de; | |
3488 | ||
3489 | assert(fd >= 0); | |
3490 | assert(root); | |
3491 | assert(deleted); | |
3492 | ||
3493 | if (!(d = fdopendir(fd))) { | |
3494 | close_nointr_nofail(fd); | |
3495 | return -errno; | |
3496 | } | |
3497 | ||
3498 | rewinddir(d); | |
3499 | ||
3500 | while ((de = readdir(d))) { | |
3501 | bool is_dir = false, is_link = false; | |
3502 | ||
3503 | if (ignore_file(de->d_name)) | |
3504 | continue; | |
3505 | ||
3506 | if (de->d_type == DT_LNK) | |
3507 | is_link = true; | |
3508 | else if (de->d_type == DT_DIR) | |
3509 | is_dir = true; | |
3510 | else if (de->d_type == DT_UNKNOWN) { | |
3511 | struct stat st; | |
3512 | ||
3513 | if (fstatat(fd, de->d_name, &st, AT_SYMLINK_NOFOLLOW) < 0) { | |
3514 | log_error("Failed to stat %s/%s: %m", root, de->d_name); | |
3515 | ||
3516 | if (r == 0) | |
3517 | r = -errno; | |
3518 | continue; | |
3519 | } | |
3520 | ||
3521 | is_link = S_ISLNK(st.st_mode); | |
3522 | is_dir = S_ISDIR(st.st_mode); | |
3523 | } else | |
3524 | continue; | |
3525 | ||
3526 | if (is_dir) { | |
3527 | int nfd, q; | |
3528 | char *p; | |
3529 | ||
3530 | if ((nfd = openat(fd, de->d_name, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) { | |
3531 | log_error("Failed to open %s/%s: %m", root, de->d_name); | |
3532 | ||
3533 | if (r == 0) | |
3534 | r = -errno; | |
3535 | continue; | |
3536 | } | |
3537 | ||
3538 | if (asprintf(&p, "%s/%s", root, de->d_name) < 0) { | |
3539 | log_error("Failed to allocate directory string."); | |
3540 | close_nointr_nofail(nfd); | |
3541 | r = -ENOMEM; | |
3542 | break; | |
3543 | } | |
3544 | ||
3545 | /* This will close nfd, regardless whether it succeeds or not */ | |
3546 | q = remove_marked_symlinks_fd(nfd, config_path, p, deleted); | |
3547 | free(p); | |
3548 | ||
3549 | if (r == 0) | |
3550 | r = q; | |
3551 | ||
3552 | } else if (is_link) { | |
3553 | char *p, *dest, *c; | |
3554 | int q; | |
3555 | ||
3556 | if (asprintf(&p, "%s/%s", root, de->d_name) < 0) { | |
3557 | log_error("Failed to allocate symlink string."); | |
3558 | r = -ENOMEM; | |
3559 | break; | |
3560 | } | |
3561 | ||
3562 | if ((q = readlink_and_make_absolute(p, &dest)) < 0) { | |
3563 | log_error("Cannot read symlink %s: %s", p, strerror(-q)); | |
3564 | free(p); | |
3565 | ||
3566 | if (r == 0) | |
3567 | r = q; | |
3568 | continue; | |
3569 | } | |
3570 | ||
3571 | if ((c = canonicalize_file_name(dest))) { | |
3572 | /* This might fail if the destination | |
3573 | * is already removed */ | |
3574 | ||
3575 | free(dest); | |
3576 | dest = c; | |
3577 | } | |
3578 | ||
3579 | path_kill_slashes(dest); | |
3580 | if (set_get(remove_symlinks_to, dest)) { | |
3581 | ||
3582 | if (!arg_quiet) | |
3583 | log_info("rm '%s'", p); | |
3584 | ||
3585 | if (unlink(p) < 0) { | |
3586 | log_error("Cannot unlink symlink %s: %m", p); | |
3587 | ||
3588 | if (r == 0) | |
3589 | r = -errno; | |
3590 | } else { | |
3591 | rmdir_parents(p, config_path); | |
3592 | path_kill_slashes(p); | |
3593 | ||
3594 | if (!set_get(remove_symlinks_to, p)) { | |
3595 | ||
3596 | if ((r = mark_symlink_for_removal(p)) < 0) { | |
3597 | if (r == 0) | |
3598 | r = q; | |
3599 | } else | |
3600 | *deleted = true; | |
3601 | } | |
3602 | } | |
3603 | } | |
3604 | ||
3605 | free(p); | |
3606 | free(dest); | |
3607 | } | |
3608 | } | |
3609 | ||
3610 | closedir(d); | |
3611 | ||
3612 | return r; | |
3613 | } | |
3614 | ||
3615 | static int remove_marked_symlinks(const char *config_path) { | |
3616 | int fd, r = 0; | |
3617 | bool deleted; | |
3618 | ||
3619 | assert(config_path); | |
3620 | ||
3621 | if (set_size(remove_symlinks_to) <= 0) | |
3622 | return 0; | |
3623 | ||
3624 | if ((fd = open(config_path, O_RDONLY|O_NONBLOCK|O_DIRECTORY|O_CLOEXEC|O_NOFOLLOW)) < 0) | |
3625 | return -errno; | |
3626 | ||
3627 | do { | |
3628 | int q, cfd; | |
3629 | deleted = false; | |
3630 | ||
3631 | if ((cfd = dup(fd)) < 0) { | |
3632 | r = -errno; | |
3633 | break; | |
3634 | } | |
3635 | ||
3636 | /* This takes possession of cfd and closes it */ | |
3637 | if ((q = remove_marked_symlinks_fd(cfd, config_path, config_path, &deleted)) < 0) { | |
3638 | if (r == 0) | |
3639 | r = q; | |
3640 | } | |
3641 | } while (deleted); | |
3642 | ||
3643 | close_nointr_nofail(fd); | |
3644 | ||
3645 | return r; | |
3646 | } | |
3647 | ||
3648 | static int create_symlink(const char *verb, const char *old_path, const char *new_path) { | |
3649 | int r; | |
3650 | ||
3651 | assert(old_path); | |
3652 | assert(new_path); | |
3653 | assert(verb); | |
3654 | ||
3655 | if (streq(verb, "enable")) { | |
3656 | char *dest; | |
3657 | ||
3658 | mkdir_parents(new_path, 0755); | |
3659 | ||
3660 | if (symlink(old_path, new_path) >= 0) { | |
3661 | ||
3662 | if (!arg_quiet) | |
3663 | log_info("ln -s '%s' '%s'", old_path, new_path); | |
3664 | ||
3665 | return 0; | |
3666 | } | |
3667 | ||
3668 | if (errno != EEXIST) { | |
3669 | log_error("Cannot link %s to %s: %m", old_path, new_path); | |
3670 | return -errno; | |
3671 | } | |
3672 | ||
3673 | if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) { | |
3674 | ||
3675 | if (errno == EINVAL) { | |
3676 | log_error("Cannot link %s to %s, file exists already and is not a symlink.", old_path, new_path); | |
3677 | return -EEXIST; | |
3678 | } | |
3679 | ||
3680 | log_error("readlink() failed: %s", strerror(-r)); | |
3681 | return r; | |
3682 | } | |
3683 | ||
3684 | if (streq(dest, old_path)) { | |
3685 | free(dest); | |
3686 | return 0; | |
3687 | } | |
3688 | ||
3689 | if (!arg_force) { | |
3690 | log_error("Cannot link %s to %s, symlink exists already and points to %s.", old_path, new_path, dest); | |
3691 | free(dest); | |
3692 | return -EEXIST; | |
3693 | } | |
3694 | ||
3695 | free(dest); | |
3696 | unlink(new_path); | |
3697 | ||
3698 | if (!arg_quiet) | |
3699 | log_info("ln -s '%s' '%s'", old_path, new_path); | |
3700 | ||
3701 | if (symlink(old_path, new_path) >= 0) | |
3702 | return 0; | |
3703 | ||
3704 | log_error("Cannot link %s to %s: %m", old_path, new_path); | |
3705 | return -errno; | |
3706 | ||
3707 | } else if (streq(verb, "disable")) { | |
3708 | char *dest; | |
3709 | ||
3710 | if ((r = mark_symlink_for_removal(old_path)) < 0) | |
3711 | return r; | |
3712 | ||
3713 | if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) { | |
3714 | if (errno == ENOENT) | |
3715 | return 0; | |
3716 | ||
3717 | if (errno == EINVAL) { | |
3718 | log_warning("File %s not a symlink, ignoring.", old_path); | |
3719 | return 0; | |
3720 | } | |
3721 | ||
3722 | log_error("readlink() failed: %s", strerror(-r)); | |
3723 | return r; | |
3724 | } | |
3725 | ||
3726 | if (!streq(dest, old_path)) { | |
3727 | log_warning("File %s not a symlink to %s but points to %s, ignoring.", new_path, old_path, dest); | |
3728 | free(dest); | |
3729 | return 0; | |
3730 | } | |
3731 | ||
3732 | free(dest); | |
3733 | ||
3734 | if ((r = mark_symlink_for_removal(new_path)) < 0) | |
3735 | return r; | |
3736 | ||
3737 | if (!arg_quiet) | |
3738 | log_info("rm '%s'", new_path); | |
3739 | ||
3740 | if (unlink(new_path) >= 0) | |
3741 | return 0; | |
3742 | ||
3743 | log_error("Cannot unlink %s: %m", new_path); | |
3744 | return -errno; | |
3745 | ||
3746 | } else if (streq(verb, "is-enabled")) { | |
3747 | char *dest; | |
3748 | ||
3749 | if ((r = readlink_and_make_absolute(new_path, &dest)) < 0) { | |
3750 | ||
3751 | if (errno == ENOENT || errno == EINVAL) | |
3752 | return 0; | |
3753 | ||
3754 | log_error("readlink() failed: %s", strerror(-r)); | |
3755 | return r; | |
3756 | } | |
3757 | ||
3758 | if (streq(dest, old_path)) { | |
3759 | free(dest); | |
3760 | return 1; | |
3761 | } | |
3762 | ||
3763 | return 0; | |
3764 | } | |
3765 | ||
3766 | assert_not_reached("Unknown action."); | |
3767 | } | |
3768 | ||
3769 | static int install_info_symlink_alias(const char *verb, InstallInfo *i, const char *config_path) { | |
3770 | char **s; | |
3771 | char *alias_path = NULL; | |
3772 | int r; | |
3773 | ||
3774 | assert(verb); | |
3775 | assert(i); | |
3776 | assert(config_path); | |
3777 | ||
3778 | STRV_FOREACH(s, i->aliases) { | |
3779 | ||
3780 | free(alias_path); | |
3781 | if (!(alias_path = path_make_absolute(*s, config_path))) { | |
3782 | log_error("Out of memory"); | |
3783 | r = -ENOMEM; | |
3784 | goto finish; | |
3785 | } | |
3786 | ||
3787 | if ((r = create_symlink(verb, i->path, alias_path)) != 0) | |
3788 | goto finish; | |
3789 | ||
3790 | if (streq(verb, "disable")) | |
3791 | rmdir_parents(alias_path, config_path); | |
3792 | } | |
3793 | r = 0; | |
3794 | ||
3795 | finish: | |
3796 | free(alias_path); | |
3797 | ||
3798 | return r; | |
3799 | } | |
3800 | ||
3801 | static int install_info_symlink_wants(const char *verb, InstallInfo *i, const char *config_path) { | |
3802 | char **s; | |
3803 | char *alias_path = NULL; | |
3804 | int r; | |
3805 | ||
3806 | assert(verb); | |
3807 | assert(i); | |
3808 | assert(config_path); | |
3809 | ||
3810 | STRV_FOREACH(s, i->wanted_by) { | |
3811 | if (!unit_name_is_valid_no_type(*s, true)) { | |
3812 | log_error("Invalid name %s.", *s); | |
3813 | r = -EINVAL; | |
3814 | goto finish; | |
3815 | } | |
3816 | ||
3817 | free(alias_path); | |
3818 | alias_path = NULL; | |
3819 | ||
3820 | if (asprintf(&alias_path, "%s/%s.wants/%s", config_path, *s, i->name) < 0) { | |
3821 | log_error("Out of memory"); | |
3822 | r = -ENOMEM; | |
3823 | goto finish; | |
3824 | } | |
3825 | ||
3826 | if ((r = create_symlink(verb, i->path, alias_path)) != 0) | |
3827 | goto finish; | |
3828 | ||
3829 | if (streq(verb, "disable")) | |
3830 | rmdir_parents(alias_path, config_path); | |
3831 | } | |
3832 | ||
3833 | r = 0; | |
3834 | ||
3835 | finish: | |
3836 | free(alias_path); | |
3837 | ||
3838 | return r; | |
3839 | } | |
3840 | ||
3841 | static int install_info_apply(const char *verb, LookupPaths *paths, InstallInfo *i, const char *config_path) { | |
3842 | ||
3843 | const ConfigItem items[] = { | |
3844 | { "Alias", config_parse_strv, &i->aliases, "Install" }, | |
3845 | { "WantedBy", config_parse_strv, &i->wanted_by, "Install" }, | |
3846 | { "Also", config_parse_also, NULL, "Install" }, | |
3847 | ||
3848 | { NULL, NULL, NULL, NULL } | |
3849 | }; | |
3850 | ||
3851 | char **p; | |
3852 | char *filename = NULL; | |
3853 | FILE *f = NULL; | |
3854 | int r; | |
3855 | ||
3856 | assert(paths); | |
3857 | assert(i); | |
3858 | ||
3859 | STRV_FOREACH(p, paths->unit_path) { | |
3860 | int fd; | |
3861 | ||
3862 | if (!(filename = path_make_absolute(i->name, *p))) { | |
3863 | log_error("Out of memory"); | |
3864 | return -ENOMEM; | |
3865 | } | |
3866 | ||
3867 | /* Ensure that we don't follow symlinks */ | |
3868 | if ((fd = open(filename, O_RDONLY|O_CLOEXEC|O_NOFOLLOW|O_NOCTTY)) >= 0) | |
3869 | if ((f = fdopen(fd, "re"))) | |
3870 | break; | |
3871 | ||
3872 | if (errno == ELOOP) { | |
3873 | log_error("Refusing to operate on symlinks, please pass unit names or absolute paths to unit files."); | |
3874 | free(filename); | |
3875 | return -errno; | |
3876 | } | |
3877 | ||
3878 | if (errno != ENOENT) { | |
3879 | log_error("Failed to open %s: %m", filename); | |
3880 | free(filename); | |
3881 | return -errno; | |
3882 | } | |
3883 | ||
3884 | free(filename); | |
3885 | filename = NULL; | |
3886 | } | |
3887 | ||
3888 | if (!f) { | |
3889 | log_error("Couldn't find %s.", i->name); | |
3890 | return -ENOENT; | |
3891 | } | |
3892 | ||
3893 | i->path = filename; | |
3894 | ||
3895 | if ((r = config_parse(filename, f, NULL, items, true, i)) < 0) { | |
3896 | fclose(f); | |
3897 | return r; | |
3898 | } | |
3899 | ||
3900 | n_symlinks += strv_length(i->aliases); | |
3901 | n_symlinks += strv_length(i->wanted_by); | |
3902 | ||
3903 | fclose(f); | |
3904 | ||
3905 | if ((r = install_info_symlink_alias(verb, i, config_path)) != 0) | |
3906 | return r; | |
3907 | ||
3908 | if ((r = install_info_symlink_wants(verb, i, config_path)) != 0) | |
3909 | return r; | |
3910 | ||
3911 | if ((r = mark_symlink_for_removal(filename)) < 0) | |
3912 | return r; | |
3913 | ||
3914 | if ((r = remove_marked_symlinks(config_path)) < 0) | |
3915 | return r; | |
3916 | ||
3917 | return 0; | |
3918 | } | |
3919 | ||
3920 | static char *get_config_path(void) { | |
3921 | ||
3922 | if (arg_session && arg_global) | |
3923 | return strdup(SESSION_CONFIG_UNIT_PATH); | |
3924 | ||
3925 | if (arg_session) { | |
3926 | char *p; | |
3927 | ||
3928 | if (session_config_home(&p) < 0) | |
3929 | return NULL; | |
3930 | ||
3931 | return p; | |
3932 | } | |
3933 | ||
3934 | return strdup(SYSTEM_CONFIG_UNIT_PATH); | |
3935 | } | |
3936 | ||
3937 | static int enable_unit(DBusConnection *bus, char **args, unsigned n) { | |
3938 | DBusError error; | |
3939 | int r; | |
3940 | LookupPaths paths; | |
3941 | char *config_path = NULL; | |
3942 | unsigned j; | |
3943 | InstallInfo *i; | |
3944 | const char *verb = args[0]; | |
3945 | ||
3946 | dbus_error_init(&error); | |
3947 | ||
3948 | zero(paths); | |
3949 | if ((r = lookup_paths_init(&paths, arg_session ? MANAGER_SESSION : MANAGER_SYSTEM)) < 0) { | |
3950 | log_error("Failed to determine lookup paths: %s", strerror(-r)); | |
3951 | goto finish; | |
3952 | } | |
3953 | ||
3954 | if (!(config_path = get_config_path())) { | |
3955 | log_error("Failed to determine config path"); | |
3956 | r = -ENOMEM; | |
3957 | goto finish; | |
3958 | } | |
3959 | ||
3960 | will_install = hashmap_new(string_hash_func, string_compare_func); | |
3961 | have_installed = hashmap_new(string_hash_func, string_compare_func); | |
3962 | ||
3963 | if (!will_install || !have_installed) { | |
3964 | log_error("Failed to allocate unit sets."); | |
3965 | r = -ENOMEM; | |
3966 | goto finish; | |
3967 | } | |
3968 | ||
3969 | if (!arg_defaults && streq(verb, "disable")) | |
3970 | if (!(remove_symlinks_to = set_new(string_hash_func, string_compare_func))) { | |
3971 | log_error("Failed to allocate symlink sets."); | |
3972 | r = -ENOMEM; | |
3973 | goto finish; | |
3974 | } | |
3975 | ||
3976 | for (j = 1; j < n; j++) | |
3977 | if ((r = install_info_add(args[j])) < 0) { | |
3978 | log_warning("Cannot install unit %s: %s", args[j], strerror(-r)); | |
3979 | goto finish; | |
3980 | } | |
3981 | ||
3982 | while ((i = hashmap_first(will_install))) { | |
3983 | int q; | |
3984 | ||
3985 | assert_se(hashmap_move_one(have_installed, will_install, i->name) == 0); | |
3986 | ||
3987 | if ((q = install_info_apply(verb, &paths, i, config_path)) != 0) { | |
3988 | ||
3989 | if (q < 0) { | |
3990 | if (r == 0) | |
3991 | r = q; | |
3992 | goto finish; | |
3993 | } | |
3994 | ||
3995 | /* In test mode and found something */ | |
3996 | r = 1; | |
3997 | break; | |
3998 | } | |
3999 | } | |
4000 | ||
4001 | if (streq(verb, "is-enabled")) | |
4002 | r = r > 0 ? 0 : -ENOENT; | |
4003 | else { | |
4004 | if (n_symlinks <= 0) | |
4005 | log_warning("Unit files contain no applicable installation information. Ignoring."); | |
4006 | ||
4007 | if (bus && | |
4008 | /* Don't try to reload anything if the user asked us to not do this */ | |
4009 | !arg_no_reload && | |
4010 | /* Don't try to reload anything when updating a unit globally */ | |
4011 | !arg_global && | |
4012 | /* Don't try to reload anything if we are called for system changes but the system wasn't booted with systemd */ | |
4013 | (arg_session || sd_booted() > 0) && | |
4014 | /* Don't try to reload anything if we are running in a chroot environment */ | |
4015 | (arg_session || running_in_chroot() <= 0) ) { | |
4016 | int q; | |
4017 | ||
4018 | if ((q = daemon_reload(bus, args, n)) < 0) | |
4019 | r = q; | |
4020 | } | |
4021 | } | |
4022 | ||
4023 | finish: | |
4024 | install_info_hashmap_free(will_install); | |
4025 | install_info_hashmap_free(have_installed); | |
4026 | ||
4027 | set_free_free(remove_symlinks_to); | |
4028 | ||
4029 | lookup_paths_free(&paths); | |
4030 | ||
4031 | free(config_path); | |
4032 | ||
4033 | return r; | |
4034 | } | |
4035 | ||
4036 | static int systemctl_help(void) { | |
4037 | ||
4038 | printf("%s [OPTIONS...] {COMMAND} ...\n\n" | |
4039 | "Send control commands to or query the systemd manager.\n\n" | |
4040 | " -h --help Show this help\n" | |
4041 | " --version Show package version\n" | |
4042 | " -t --type=TYPE List only units of a particular type\n" | |
4043 | " -p --property=NAME Show only properties by this name\n" | |
4044 | " -a --all Show all units/properties, including dead/empty ones\n" | |
4045 | " --full Don't ellipsize unit names on output\n" | |
4046 | " --fail When queueing a new job, fail if conflicting jobs are\n" | |
4047 | " pending\n" | |
4048 | " -q --quiet Suppress output\n" | |
4049 | " --no-block Do not wait until operation finished\n" | |
4050 | " --system Connect to system bus\n" | |
4051 | " --session Connect to session bus\n" | |
4052 | " --order When generating graph for dot, show only order\n" | |
4053 | " --require When generating graph for dot, show only requirement\n" | |
4054 | " --no-wall Don't send wall message before halt/power-off/reboot\n" | |
4055 | " --global Enable/disable unit files globally\n" | |
4056 | " --no-reload When enabling/disabling unit files, don't reload daemon\n" | |
4057 | " configuration\n" | |
4058 | " --no-ask-password\n" | |
4059 | " Do not ask for system passwords\n" | |
4060 | " --kill-mode=MODE How to send signal\n" | |
4061 | " --kill-who=WHO Who to send signal to\n" | |
4062 | " -s --signal=SIGNAL Which signal to send\n" | |
4063 | " -f --force When enabling unit files, override existing symlinks\n" | |
4064 | " When shutting down, execute action immediately\n" | |
4065 | " --defaults When disabling unit files, remove default symlinks only\n\n" | |
4066 | "Commands:\n" | |
4067 | " list-units List units\n" | |
4068 | " start [NAME...] Start (activate) one or more units\n" | |
4069 | " stop [NAME...] Stop (deactivate) one or more units\n" | |
4070 | " reload [NAME...] Reload one or more units\n" | |
4071 | " restart [NAME...] Start or restart one or more units\n" | |
4072 | " try-restart [NAME...] Restart one or more units if active\n" | |
4073 | " reload-or-restart [NAME...] Reload one or more units is possible,\n" | |
4074 | " otherwise start or restart\n" | |
4075 | " reload-or-try-restart [NAME...] Reload one or more units is possible,\n" | |
4076 | " otherwise restart if active\n" | |
4077 | " isolate [NAME] Start one unit and stop all others\n" | |
4078 | " kill [NAME...] Send signal to processes of a unit\n" | |
4079 | " is-active [NAME...] Check whether units are active\n" | |
4080 | " status [NAME...|PID...] Show runtime status of one or more units\n" | |
4081 | " show [NAME...|JOB...] Show properties of one or more\n" | |
4082 | " units/jobs or the manager\n" | |
4083 | " reset-failed [NAME...] Reset failed state for all, one, or more\n" | |
4084 | " units\n" | |
4085 | " enable [NAME...] Enable one or more unit files\n" | |
4086 | " disable [NAME...] Disable one or more unit files\n" | |
4087 | " is-enabled [NAME...] Check whether unit files are enabled\n" | |
4088 | " load [NAME...] Load one or more units\n" | |
4089 | " list-jobs List jobs\n" | |
4090 | " cancel [JOB...] Cancel all, one, or more jobs\n" | |
4091 | " monitor Monitor unit/job changes\n" | |
4092 | " dump Dump server status\n" | |
4093 | " dot Dump dependency graph for dot(1)\n" | |
4094 | " snapshot [NAME] Create a snapshot\n" | |
4095 | " delete [NAME...] Remove one or more snapshots\n" | |
4096 | " daemon-reload Reload systemd manager configuration\n" | |
4097 | " daemon-reexec Reexecute systemd manager\n" | |
4098 | " show-environment Dump environment\n" | |
4099 | " set-environment [NAME=VALUE...] Set one or more environment variables\n" | |
4100 | " unset-environment [NAME...] Unset one or more environment variables\n" | |
4101 | " default Enter system default mode\n" | |
4102 | " rescue Enter system rescue mode\n" | |
4103 | " emergency Enter system emergency mode\n" | |
4104 | " halt Shut down and halt the system\n" | |
4105 | " poweroff Shut down and power-off the system\n" | |
4106 | " reboot Shut down and reboot the system\n" | |
4107 | " kexec Shut down and reboot the system with kexec\n" | |
4108 | " exit Ask for session termination\n", | |
4109 | program_invocation_short_name); | |
4110 | ||
4111 | return 0; | |
4112 | } | |
4113 | ||
4114 | static int halt_help(void) { | |
4115 | ||
4116 | printf("%s [OPTIONS...]\n\n" | |
4117 | "%s the system.\n\n" | |
4118 | " --help Show this help\n" | |
4119 | " --halt Halt the machine\n" | |
4120 | " -p --poweroff Switch off the machine\n" | |
4121 | " --reboot Reboot the machine\n" | |
4122 | " -f --force Force immediate halt/power-off/reboot\n" | |
4123 | " -w --wtmp-only Don't halt/power-off/reboot, just write wtmp record\n" | |
4124 | " -d --no-wtmp Don't write wtmp record\n" | |
4125 | " -n --no-sync Don't sync before halt/power-off/reboot\n" | |
4126 | " --no-wall Don't send wall message before halt/power-off/reboot\n", | |
4127 | program_invocation_short_name, | |
4128 | arg_action == ACTION_REBOOT ? "Reboot" : | |
4129 | arg_action == ACTION_POWEROFF ? "Power off" : | |
4130 | "Halt"); | |
4131 | ||
4132 | return 0; | |
4133 | } | |
4134 | ||
4135 | static int shutdown_help(void) { | |
4136 | ||
4137 | printf("%s [OPTIONS...] [TIME] [WALL...]\n\n" | |
4138 | "Shut down the system.\n\n" | |
4139 | " --help Show this help\n" | |
4140 | " -H --halt Halt the machine\n" | |
4141 | " -P --poweroff Power-off the machine\n" | |
4142 | " -r --reboot Reboot the machine\n" | |
4143 | " -h Equivalent to --poweroff, overriden by --halt\n" | |
4144 | " -k Don't halt/power-off/reboot, just send warnings\n" | |
4145 | " --no-wall Don't send wall message before halt/power-off/reboot\n" | |
4146 | " -c Cancel a pending shutdown\n", | |
4147 | program_invocation_short_name); | |
4148 | ||
4149 | return 0; | |
4150 | } | |
4151 | ||
4152 | static int telinit_help(void) { | |
4153 | ||
4154 | printf("%s [OPTIONS...] {COMMAND}\n\n" | |
4155 | "Send control commands to the init daemon.\n\n" | |
4156 | " --help Show this help\n" | |
4157 | " --no-wall Don't send wall message before halt/power-off/reboot\n\n" | |
4158 | "Commands:\n" | |
4159 | " 0 Power-off the machine\n" | |
4160 | " 6 Reboot the machine\n" | |
4161 | " 2, 3, 4, 5 Start runlevelX.target unit\n" | |
4162 | " 1, s, S Enter rescue mode\n" | |
4163 | " q, Q Reload init daemon configuration\n" | |
4164 | " u, U Reexecute init daemon\n", | |
4165 | program_invocation_short_name); | |
4166 | ||
4167 | return 0; | |
4168 | } | |
4169 | ||
4170 | static int runlevel_help(void) { | |
4171 | ||
4172 | printf("%s [OPTIONS...]\n\n" | |
4173 | "Prints the previous and current runlevel of the init system.\n\n" | |
4174 | " --help Show this help\n", | |
4175 | program_invocation_short_name); | |
4176 | ||
4177 | return 0; | |
4178 | } | |
4179 | ||
4180 | static int systemctl_parse_argv(int argc, char *argv[]) { | |
4181 | ||
4182 | enum { | |
4183 | ARG_FAIL = 0x100, | |
4184 | ARG_VERSION, | |
4185 | ARG_SESSION, | |
4186 | ARG_SYSTEM, | |
4187 | ARG_GLOBAL, | |
4188 | ARG_NO_BLOCK, | |
4189 | ARG_NO_WALL, | |
4190 | ARG_ORDER, | |
4191 | ARG_REQUIRE, | |
4192 | ARG_FULL, | |
4193 | ARG_NO_RELOAD, | |
4194 | ARG_DEFAULTS, | |
4195 | ARG_KILL_MODE, | |
4196 | ARG_KILL_WHO, | |
4197 | ARG_NO_ASK_PASSWORD | |
4198 | }; | |
4199 | ||
4200 | static const struct option options[] = { | |
4201 | { "help", no_argument, NULL, 'h' }, | |
4202 | { "version", no_argument, NULL, ARG_VERSION }, | |
4203 | { "type", required_argument, NULL, 't' }, | |
4204 | { "property", required_argument, NULL, 'p' }, | |
4205 | { "all", no_argument, NULL, 'a' }, | |
4206 | { "full", no_argument, NULL, ARG_FULL }, | |
4207 | { "fail", no_argument, NULL, ARG_FAIL }, | |
4208 | { "session", no_argument, NULL, ARG_SESSION }, | |
4209 | { "system", no_argument, NULL, ARG_SYSTEM }, | |
4210 | { "global", no_argument, NULL, ARG_GLOBAL }, | |
4211 | { "no-block", no_argument, NULL, ARG_NO_BLOCK }, | |
4212 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4213 | { "quiet", no_argument, NULL, 'q' }, | |
4214 | { "order", no_argument, NULL, ARG_ORDER }, | |
4215 | { "require", no_argument, NULL, ARG_REQUIRE }, | |
4216 | { "force", no_argument, NULL, 'f' }, | |
4217 | { "no-reload", no_argument, NULL, ARG_NO_RELOAD }, | |
4218 | { "defaults", no_argument, NULL, ARG_DEFAULTS }, | |
4219 | { "kill-mode", required_argument, NULL, ARG_KILL_MODE }, | |
4220 | { "kill-who", required_argument, NULL, ARG_KILL_WHO }, | |
4221 | { "signal", required_argument, NULL, 's' }, | |
4222 | { "no-ask-password", no_argument, NULL, ARG_NO_ASK_PASSWORD }, | |
4223 | { NULL, 0, NULL, 0 } | |
4224 | }; | |
4225 | ||
4226 | int c; | |
4227 | ||
4228 | assert(argc >= 0); | |
4229 | assert(argv); | |
4230 | ||
4231 | /* Only when running as systemctl we ask for passwords */ | |
4232 | arg_ask_password = true; | |
4233 | ||
4234 | while ((c = getopt_long(argc, argv, "ht:p:aqfs:", options, NULL)) >= 0) { | |
4235 | ||
4236 | switch (c) { | |
4237 | ||
4238 | case 'h': | |
4239 | systemctl_help(); | |
4240 | return 0; | |
4241 | ||
4242 | case ARG_VERSION: | |
4243 | puts(PACKAGE_STRING); | |
4244 | puts(DISTRIBUTION); | |
4245 | puts(SYSTEMD_FEATURES); | |
4246 | return 0; | |
4247 | ||
4248 | case 't': | |
4249 | arg_type = optarg; | |
4250 | break; | |
4251 | ||
4252 | case 'p': { | |
4253 | char **l; | |
4254 | ||
4255 | if (!(l = strv_append(arg_property, optarg))) | |
4256 | return -ENOMEM; | |
4257 | ||
4258 | strv_free(arg_property); | |
4259 | arg_property = l; | |
4260 | ||
4261 | /* If the user asked for a particular | |
4262 | * property, show it to him, even if it is | |
4263 | * empty. */ | |
4264 | arg_all = true; | |
4265 | break; | |
4266 | } | |
4267 | ||
4268 | case 'a': | |
4269 | arg_all = true; | |
4270 | break; | |
4271 | ||
4272 | case ARG_FAIL: | |
4273 | arg_fail = true; | |
4274 | break; | |
4275 | ||
4276 | case ARG_SESSION: | |
4277 | arg_session = true; | |
4278 | break; | |
4279 | ||
4280 | case ARG_SYSTEM: | |
4281 | arg_session = false; | |
4282 | break; | |
4283 | ||
4284 | case ARG_NO_BLOCK: | |
4285 | arg_no_block = true; | |
4286 | break; | |
4287 | ||
4288 | case ARG_NO_WALL: | |
4289 | arg_no_wall = true; | |
4290 | break; | |
4291 | ||
4292 | case ARG_ORDER: | |
4293 | arg_dot = DOT_ORDER; | |
4294 | break; | |
4295 | ||
4296 | case ARG_REQUIRE: | |
4297 | arg_dot = DOT_REQUIRE; | |
4298 | break; | |
4299 | ||
4300 | case ARG_FULL: | |
4301 | arg_full = true; | |
4302 | break; | |
4303 | ||
4304 | case 'q': | |
4305 | arg_quiet = true; | |
4306 | break; | |
4307 | ||
4308 | case 'f': | |
4309 | arg_force = true; | |
4310 | break; | |
4311 | ||
4312 | case ARG_NO_RELOAD: | |
4313 | arg_no_reload = true; | |
4314 | break; | |
4315 | ||
4316 | case ARG_GLOBAL: | |
4317 | arg_global = true; | |
4318 | arg_session = true; | |
4319 | break; | |
4320 | ||
4321 | case ARG_DEFAULTS: | |
4322 | arg_defaults = true; | |
4323 | break; | |
4324 | ||
4325 | case ARG_KILL_WHO: | |
4326 | arg_kill_who = optarg; | |
4327 | break; | |
4328 | ||
4329 | case ARG_KILL_MODE: | |
4330 | arg_kill_mode = optarg; | |
4331 | break; | |
4332 | ||
4333 | case 's': | |
4334 | if ((arg_signal = signal_from_string_try_harder(optarg)) < 0) { | |
4335 | log_error("Failed to parse signal string %s.", optarg); | |
4336 | return -EINVAL; | |
4337 | } | |
4338 | break; | |
4339 | ||
4340 | case ARG_NO_ASK_PASSWORD: | |
4341 | arg_ask_password = false; | |
4342 | break; | |
4343 | ||
4344 | case '?': | |
4345 | return -EINVAL; | |
4346 | ||
4347 | default: | |
4348 | log_error("Unknown option code %c", c); | |
4349 | return -EINVAL; | |
4350 | } | |
4351 | } | |
4352 | ||
4353 | return 1; | |
4354 | } | |
4355 | ||
4356 | static int halt_parse_argv(int argc, char *argv[]) { | |
4357 | ||
4358 | enum { | |
4359 | ARG_HELP = 0x100, | |
4360 | ARG_HALT, | |
4361 | ARG_REBOOT, | |
4362 | ARG_NO_WALL | |
4363 | }; | |
4364 | ||
4365 | static const struct option options[] = { | |
4366 | { "help", no_argument, NULL, ARG_HELP }, | |
4367 | { "halt", no_argument, NULL, ARG_HALT }, | |
4368 | { "poweroff", no_argument, NULL, 'p' }, | |
4369 | { "reboot", no_argument, NULL, ARG_REBOOT }, | |
4370 | { "force", no_argument, NULL, 'f' }, | |
4371 | { "wtmp-only", no_argument, NULL, 'w' }, | |
4372 | { "no-wtmp", no_argument, NULL, 'd' }, | |
4373 | { "no-sync", no_argument, NULL, 'n' }, | |
4374 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4375 | { NULL, 0, NULL, 0 } | |
4376 | }; | |
4377 | ||
4378 | int c, runlevel; | |
4379 | ||
4380 | assert(argc >= 0); | |
4381 | assert(argv); | |
4382 | ||
4383 | if (utmp_get_runlevel(&runlevel, NULL) >= 0) | |
4384 | if (runlevel == '0' || runlevel == '6') | |
4385 | arg_immediate = true; | |
4386 | ||
4387 | while ((c = getopt_long(argc, argv, "pfwdnih", options, NULL)) >= 0) { | |
4388 | switch (c) { | |
4389 | ||
4390 | case ARG_HELP: | |
4391 | halt_help(); | |
4392 | return 0; | |
4393 | ||
4394 | case ARG_HALT: | |
4395 | arg_action = ACTION_HALT; | |
4396 | break; | |
4397 | ||
4398 | case 'p': | |
4399 | if (arg_action != ACTION_REBOOT) | |
4400 | arg_action = ACTION_POWEROFF; | |
4401 | break; | |
4402 | ||
4403 | case ARG_REBOOT: | |
4404 | arg_action = ACTION_REBOOT; | |
4405 | break; | |
4406 | ||
4407 | case 'f': | |
4408 | arg_immediate = true; | |
4409 | break; | |
4410 | ||
4411 | case 'w': | |
4412 | arg_dry = true; | |
4413 | break; | |
4414 | ||
4415 | case 'd': | |
4416 | arg_no_wtmp = true; | |
4417 | break; | |
4418 | ||
4419 | case 'n': | |
4420 | arg_no_sync = true; | |
4421 | break; | |
4422 | ||
4423 | case ARG_NO_WALL: | |
4424 | arg_no_wall = true; | |
4425 | break; | |
4426 | ||
4427 | case 'i': | |
4428 | case 'h': | |
4429 | /* Compatibility nops */ | |
4430 | break; | |
4431 | ||
4432 | case '?': | |
4433 | return -EINVAL; | |
4434 | ||
4435 | default: | |
4436 | log_error("Unknown option code %c", c); | |
4437 | return -EINVAL; | |
4438 | } | |
4439 | } | |
4440 | ||
4441 | if (optind < argc) { | |
4442 | log_error("Too many arguments."); | |
4443 | return -EINVAL; | |
4444 | } | |
4445 | ||
4446 | return 1; | |
4447 | } | |
4448 | ||
4449 | static int parse_time_spec(const char *t, usec_t *_u) { | |
4450 | assert(t); | |
4451 | assert(_u); | |
4452 | ||
4453 | if (streq(t, "now")) | |
4454 | *_u = 0; | |
4455 | else if (t[0] == '+') { | |
4456 | uint64_t u; | |
4457 | ||
4458 | if (safe_atou64(t + 1, &u) < 0) | |
4459 | return -EINVAL; | |
4460 | ||
4461 | *_u = now(CLOCK_REALTIME) + USEC_PER_MINUTE * u; | |
4462 | } else { | |
4463 | char *e = NULL; | |
4464 | long hour, minute; | |
4465 | struct tm tm; | |
4466 | time_t s; | |
4467 | usec_t n; | |
4468 | ||
4469 | errno = 0; | |
4470 | hour = strtol(t, &e, 10); | |
4471 | if (errno != 0 || *e != ':' || hour < 0 || hour > 23) | |
4472 | return -EINVAL; | |
4473 | ||
4474 | minute = strtol(e+1, &e, 10); | |
4475 | if (errno != 0 || *e != 0 || minute < 0 || minute > 59) | |
4476 | return -EINVAL; | |
4477 | ||
4478 | n = now(CLOCK_REALTIME); | |
4479 | s = (time_t) (n / USEC_PER_SEC); | |
4480 | ||
4481 | zero(tm); | |
4482 | assert_se(localtime_r(&s, &tm)); | |
4483 | ||
4484 | tm.tm_hour = (int) hour; | |
4485 | tm.tm_min = (int) minute; | |
4486 | tm.tm_sec = 0; | |
4487 | ||
4488 | assert_se(s = mktime(&tm)); | |
4489 | ||
4490 | *_u = (usec_t) s * USEC_PER_SEC; | |
4491 | ||
4492 | while (*_u <= n) | |
4493 | *_u += USEC_PER_DAY; | |
4494 | } | |
4495 | ||
4496 | return 0; | |
4497 | } | |
4498 | ||
4499 | static int shutdown_parse_argv(int argc, char *argv[]) { | |
4500 | ||
4501 | enum { | |
4502 | ARG_HELP = 0x100, | |
4503 | ARG_NO_WALL | |
4504 | }; | |
4505 | ||
4506 | static const struct option options[] = { | |
4507 | { "help", no_argument, NULL, ARG_HELP }, | |
4508 | { "halt", no_argument, NULL, 'H' }, | |
4509 | { "poweroff", no_argument, NULL, 'P' }, | |
4510 | { "reboot", no_argument, NULL, 'r' }, | |
4511 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4512 | { NULL, 0, NULL, 0 } | |
4513 | }; | |
4514 | ||
4515 | int c, r; | |
4516 | ||
4517 | assert(argc >= 0); | |
4518 | assert(argv); | |
4519 | ||
4520 | while ((c = getopt_long(argc, argv, "HPrhkt:afFc", options, NULL)) >= 0) { | |
4521 | switch (c) { | |
4522 | ||
4523 | case ARG_HELP: | |
4524 | shutdown_help(); | |
4525 | return 0; | |
4526 | ||
4527 | case 'H': | |
4528 | arg_action = ACTION_HALT; | |
4529 | break; | |
4530 | ||
4531 | case 'P': | |
4532 | arg_action = ACTION_POWEROFF; | |
4533 | break; | |
4534 | ||
4535 | case 'r': | |
4536 | arg_action = ACTION_REBOOT; | |
4537 | break; | |
4538 | ||
4539 | case 'h': | |
4540 | if (arg_action != ACTION_HALT) | |
4541 | arg_action = ACTION_POWEROFF; | |
4542 | break; | |
4543 | ||
4544 | case 'k': | |
4545 | arg_dry = true; | |
4546 | break; | |
4547 | ||
4548 | case ARG_NO_WALL: | |
4549 | arg_no_wall = true; | |
4550 | break; | |
4551 | ||
4552 | case 't': | |
4553 | case 'a': | |
4554 | /* Compatibility nops */ | |
4555 | break; | |
4556 | ||
4557 | case 'c': | |
4558 | arg_action = ACTION_CANCEL_SHUTDOWN; | |
4559 | break; | |
4560 | ||
4561 | case '?': | |
4562 | return -EINVAL; | |
4563 | ||
4564 | default: | |
4565 | log_error("Unknown option code %c", c); | |
4566 | return -EINVAL; | |
4567 | } | |
4568 | } | |
4569 | ||
4570 | if (argc > optind) { | |
4571 | if ((r = parse_time_spec(argv[optind], &arg_when)) < 0) { | |
4572 | log_error("Failed to parse time specification: %s", argv[optind]); | |
4573 | return r; | |
4574 | } | |
4575 | } else | |
4576 | arg_when = now(CLOCK_REALTIME) + USEC_PER_MINUTE; | |
4577 | ||
4578 | /* We skip the time argument */ | |
4579 | if (argc > optind + 1) | |
4580 | arg_wall = argv + optind + 1; | |
4581 | ||
4582 | optind = argc; | |
4583 | ||
4584 | return 1; | |
4585 | } | |
4586 | ||
4587 | static int telinit_parse_argv(int argc, char *argv[]) { | |
4588 | ||
4589 | enum { | |
4590 | ARG_HELP = 0x100, | |
4591 | ARG_NO_WALL | |
4592 | }; | |
4593 | ||
4594 | static const struct option options[] = { | |
4595 | { "help", no_argument, NULL, ARG_HELP }, | |
4596 | { "no-wall", no_argument, NULL, ARG_NO_WALL }, | |
4597 | { NULL, 0, NULL, 0 } | |
4598 | }; | |
4599 | ||
4600 | static const struct { | |
4601 | char from; | |
4602 | enum action to; | |
4603 | } table[] = { | |
4604 | { '0', ACTION_POWEROFF }, | |
4605 | { '6', ACTION_REBOOT }, | |
4606 | { '1', ACTION_RESCUE }, | |
4607 | { '2', ACTION_RUNLEVEL2 }, | |
4608 | { '3', ACTION_RUNLEVEL3 }, | |
4609 | { '4', ACTION_RUNLEVEL4 }, | |
4610 | { '5', ACTION_RUNLEVEL5 }, | |
4611 | { 's', ACTION_RESCUE }, | |
4612 | { 'S', ACTION_RESCUE }, | |
4613 | { 'q', ACTION_RELOAD }, | |
4614 | { 'Q', ACTION_RELOAD }, | |
4615 | { 'u', ACTION_REEXEC }, | |
4616 | { 'U', ACTION_REEXEC } | |
4617 | }; | |
4618 | ||
4619 | unsigned i; | |
4620 | int c; | |
4621 | ||
4622 | assert(argc >= 0); | |
4623 | assert(argv); | |
4624 | ||
4625 | while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) { | |
4626 | switch (c) { | |
4627 | ||
4628 | case ARG_HELP: | |
4629 | telinit_help(); | |
4630 | return 0; | |
4631 | ||
4632 | case ARG_NO_WALL: | |
4633 | arg_no_wall = true; | |
4634 | break; | |
4635 | ||
4636 | case '?': | |
4637 | return -EINVAL; | |
4638 | ||
4639 | default: | |
4640 | log_error("Unknown option code %c", c); | |
4641 | return -EINVAL; | |
4642 | } | |
4643 | } | |
4644 | ||
4645 | if (optind >= argc) { | |
4646 | telinit_help(); | |
4647 | return -EINVAL; | |
4648 | } | |
4649 | ||
4650 | if (optind + 1 < argc) { | |
4651 | log_error("Too many arguments."); | |
4652 | return -EINVAL; | |
4653 | } | |
4654 | ||
4655 | if (strlen(argv[optind]) != 1) { | |
4656 | log_error("Expected single character argument."); | |
4657 | return -EINVAL; | |
4658 | } | |
4659 | ||
4660 | for (i = 0; i < ELEMENTSOF(table); i++) | |
4661 | if (table[i].from == argv[optind][0]) | |
4662 | break; | |
4663 | ||
4664 | if (i >= ELEMENTSOF(table)) { | |
4665 | log_error("Unknown command %s.", argv[optind]); | |
4666 | return -EINVAL; | |
4667 | } | |
4668 | ||
4669 | arg_action = table[i].to; | |
4670 | ||
4671 | optind ++; | |
4672 | ||
4673 | return 1; | |
4674 | } | |
4675 | ||
4676 | static int runlevel_parse_argv(int argc, char *argv[]) { | |
4677 | ||
4678 | enum { | |
4679 | ARG_HELP = 0x100, | |
4680 | }; | |
4681 | ||
4682 | static const struct option options[] = { | |
4683 | { "help", no_argument, NULL, ARG_HELP }, | |
4684 | { NULL, 0, NULL, 0 } | |
4685 | }; | |
4686 | ||
4687 | int c; | |
4688 | ||
4689 | assert(argc >= 0); | |
4690 | assert(argv); | |
4691 | ||
4692 | while ((c = getopt_long(argc, argv, "", options, NULL)) >= 0) { | |
4693 | switch (c) { | |
4694 | ||
4695 | case ARG_HELP: | |
4696 | runlevel_help(); | |
4697 | return 0; | |
4698 | ||
4699 | case '?': | |
4700 | return -EINVAL; | |
4701 | ||
4702 | default: | |
4703 | log_error("Unknown option code %c", c); | |
4704 | return -EINVAL; | |
4705 | } | |
4706 | } | |
4707 | ||
4708 | if (optind < argc) { | |
4709 | log_error("Too many arguments."); | |
4710 | return -EINVAL; | |
4711 | } | |
4712 | ||
4713 | return 1; | |
4714 | } | |
4715 | ||
4716 | static int parse_argv(int argc, char *argv[]) { | |
4717 | assert(argc >= 0); | |
4718 | assert(argv); | |
4719 | ||
4720 | if (program_invocation_short_name) { | |
4721 | ||
4722 | if (strstr(program_invocation_short_name, "halt")) { | |
4723 | arg_action = ACTION_HALT; | |
4724 | return halt_parse_argv(argc, argv); | |
4725 | } else if (strstr(program_invocation_short_name, "poweroff")) { | |
4726 | arg_action = ACTION_POWEROFF; | |
4727 | return halt_parse_argv(argc, argv); | |
4728 | } else if (strstr(program_invocation_short_name, "reboot")) { | |
4729 | arg_action = ACTION_REBOOT; | |
4730 | return halt_parse_argv(argc, argv); | |
4731 | } else if (strstr(program_invocation_short_name, "shutdown")) { | |
4732 | arg_action = ACTION_POWEROFF; | |
4733 | return shutdown_parse_argv(argc, argv); | |
4734 | } else if (strstr(program_invocation_short_name, "init")) { | |
4735 | ||
4736 | if (sd_booted() > 0) { | |
4737 | arg_action = ACTION_INVALID; | |
4738 | return telinit_parse_argv(argc, argv); | |
4739 | } else { | |
4740 | /* Hmm, so some other init system is | |
4741 | * running, we need to forward this | |
4742 | * request to it. For now we simply | |
4743 | * guess that it is Upstart. */ | |
4744 | ||
4745 | execv("/lib/upstart/telinit", argv); | |
4746 | ||
4747 | log_error("Couldn't find an alternative telinit implementation to spawn."); | |
4748 | return -EIO; | |
4749 | } | |
4750 | ||
4751 | } else if (strstr(program_invocation_short_name, "runlevel")) { | |
4752 | arg_action = ACTION_RUNLEVEL; | |
4753 | return runlevel_parse_argv(argc, argv); | |
4754 | } | |
4755 | } | |
4756 | ||
4757 | arg_action = ACTION_SYSTEMCTL; | |
4758 | return systemctl_parse_argv(argc, argv); | |
4759 | } | |
4760 | ||
4761 | static int action_to_runlevel(void) { | |
4762 | ||
4763 | static const char table[_ACTION_MAX] = { | |
4764 | [ACTION_HALT] = '0', | |
4765 | [ACTION_POWEROFF] = '0', | |
4766 | [ACTION_REBOOT] = '6', | |
4767 | [ACTION_RUNLEVEL2] = '2', | |
4768 | [ACTION_RUNLEVEL3] = '3', | |
4769 | [ACTION_RUNLEVEL4] = '4', | |
4770 | [ACTION_RUNLEVEL5] = '5', | |
4771 | [ACTION_RESCUE] = '1' | |
4772 | }; | |
4773 | ||
4774 | assert(arg_action < _ACTION_MAX); | |
4775 | ||
4776 | return table[arg_action]; | |
4777 | } | |
4778 | ||
4779 | static int talk_upstart(void) { | |
4780 | DBusMessage *m = NULL, *reply = NULL; | |
4781 | DBusError error; | |
4782 | int previous, rl, r; | |
4783 | char | |
4784 | env1_buf[] = "RUNLEVEL=X", | |
4785 | env2_buf[] = "PREVLEVEL=X"; | |
4786 | char *env1 = env1_buf, *env2 = env2_buf; | |
4787 | const char *emit = "runlevel"; | |
4788 | dbus_bool_t b_false = FALSE; | |
4789 | DBusMessageIter iter, sub; | |
4790 | DBusConnection *bus; | |
4791 | ||
4792 | dbus_error_init(&error); | |
4793 | ||
4794 | if (!(rl = action_to_runlevel())) | |
4795 | return 0; | |
4796 | ||
4797 | if (utmp_get_runlevel(&previous, NULL) < 0) | |
4798 | previous = 'N'; | |
4799 | ||
4800 | if (!(bus = dbus_connection_open_private("unix:abstract=/com/ubuntu/upstart", &error))) { | |
4801 | if (dbus_error_has_name(&error, DBUS_ERROR_NO_SERVER)) { | |
4802 | r = 0; | |
4803 | goto finish; | |
4804 | } | |
4805 | ||
4806 | log_error("Failed to connect to Upstart bus: %s", bus_error_message(&error)); | |
4807 | r = -EIO; | |
4808 | goto finish; | |
4809 | } | |
4810 | ||
4811 | if ((r = bus_check_peercred(bus)) < 0) { | |
4812 | log_error("Failed to verify owner of bus."); | |
4813 | goto finish; | |
4814 | } | |
4815 | ||
4816 | if (!(m = dbus_message_new_method_call( | |
4817 | "com.ubuntu.Upstart", | |
4818 | "/com/ubuntu/Upstart", | |
4819 | "com.ubuntu.Upstart0_6", | |
4820 | "EmitEvent"))) { | |
4821 | ||
4822 | log_error("Could not allocate message."); | |
4823 | r = -ENOMEM; | |
4824 | goto finish; | |
4825 | } | |
4826 | ||
4827 | dbus_message_iter_init_append(m, &iter); | |
4828 | ||
4829 | env1_buf[sizeof(env1_buf)-2] = rl; | |
4830 | env2_buf[sizeof(env2_buf)-2] = previous; | |
4831 | ||
4832 | if (!dbus_message_iter_append_basic(&iter, DBUS_TYPE_STRING, &emit) || | |
4833 | !dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub) || | |
4834 | !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env1) || | |
4835 | !dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, &env2) || | |
4836 | !dbus_message_iter_close_container(&iter, &sub) || | |
4837 | !dbus_message_iter_append_basic(&iter, DBUS_TYPE_BOOLEAN, &b_false)) { | |
4838 | log_error("Could not append arguments to message."); | |
4839 | r = -ENOMEM; | |
4840 | goto finish; | |
4841 | } | |
4842 | ||
4843 | if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) { | |
4844 | ||
4845 | if (error_is_no_service(&error)) { | |
4846 | r = -EADDRNOTAVAIL; | |
4847 | goto finish; | |
4848 | } | |
4849 | ||
4850 | log_error("Failed to issue method call: %s", bus_error_message(&error)); | |
4851 | r = -EIO; | |
4852 | goto finish; | |
4853 | } | |
4854 | ||
4855 | r = 0; | |
4856 | ||
4857 | finish: | |
4858 | if (m) | |
4859 | dbus_message_unref(m); | |
4860 | ||
4861 | if (reply) | |
4862 | dbus_message_unref(reply); | |
4863 | ||
4864 | if (bus) { | |
4865 | dbus_connection_flush(bus); | |
4866 | dbus_connection_close(bus); | |
4867 | dbus_connection_unref(bus); | |
4868 | } | |
4869 | ||
4870 | dbus_error_free(&error); | |
4871 | ||
4872 | return r; | |
4873 | } | |
4874 | ||
4875 | static int talk_initctl(void) { | |
4876 | struct init_request request; | |
4877 | int r, fd; | |
4878 | char rl; | |
4879 | ||
4880 | if (!(rl = action_to_runlevel())) | |
4881 | return 0; | |
4882 | ||
4883 | zero(request); | |
4884 | request.magic = INIT_MAGIC; | |
4885 | request.sleeptime = 0; | |
4886 | request.cmd = INIT_CMD_RUNLVL; | |
4887 | request.runlevel = rl; | |
4888 | ||
4889 | if ((fd = open(INIT_FIFO, O_WRONLY|O_NDELAY|O_CLOEXEC|O_NOCTTY)) < 0) { | |
4890 | ||
4891 | if (errno == ENOENT) | |
4892 | return 0; | |
4893 | ||
4894 | log_error("Failed to open "INIT_FIFO": %m"); | |
4895 | return -errno; | |
4896 | } | |
4897 | ||
4898 | errno = 0; | |
4899 | r = loop_write(fd, &request, sizeof(request), false) != sizeof(request); | |
4900 | close_nointr_nofail(fd); | |
4901 | ||
4902 | if (r < 0) { | |
4903 | log_error("Failed to write to "INIT_FIFO": %m"); | |
4904 | return errno ? -errno : -EIO; | |
4905 | } | |
4906 | ||
4907 | return 1; | |
4908 | } | |
4909 | ||
4910 | static int systemctl_main(DBusConnection *bus, int argc, char *argv[], DBusError *error) { | |
4911 | ||
4912 | static const struct { | |
4913 | const char* verb; | |
4914 | const enum { | |
4915 | MORE, | |
4916 | LESS, | |
4917 | EQUAL | |
4918 | } argc_cmp; | |
4919 | const int argc; | |
4920 | int (* const dispatch)(DBusConnection *bus, char **args, unsigned n); | |
4921 | } verbs[] = { | |
4922 | { "list-units", LESS, 1, list_units }, | |
4923 | { "list-jobs", EQUAL, 1, list_jobs }, | |
4924 | { "clear-jobs", EQUAL, 1, daemon_reload }, | |
4925 | { "load", MORE, 2, load_unit }, | |
4926 | { "cancel", MORE, 2, cancel_job }, | |
4927 | { "start", MORE, 2, start_unit }, | |
4928 | { "stop", MORE, 2, start_unit }, | |
4929 | { "reload", MORE, 2, start_unit }, | |
4930 | { "restart", MORE, 2, start_unit }, | |
4931 | { "try-restart", MORE, 2, start_unit }, | |
4932 | { "reload-or-restart", MORE, 2, start_unit }, | |
4933 | { "reload-or-try-restart", MORE, 2, start_unit }, | |
4934 | { "force-reload", MORE, 2, start_unit }, /* For compatibility with SysV */ | |
4935 | { "condrestart", MORE, 2, start_unit }, /* For compatibility with RH */ | |
4936 | { "isolate", EQUAL, 2, start_unit }, | |
4937 | { "kill", MORE, 2, kill_unit }, | |
4938 | { "is-active", MORE, 2, check_unit }, | |
4939 | { "check", MORE, 2, check_unit }, | |
4940 | { "show", MORE, 1, show }, | |
4941 | { "status", MORE, 2, show }, | |
4942 | { "monitor", EQUAL, 1, monitor }, | |
4943 | { "dump", EQUAL, 1, dump }, | |
4944 | { "dot", EQUAL, 1, dot }, | |
4945 | { "snapshot", LESS, 2, snapshot }, | |
4946 | { "delete", MORE, 2, delete_snapshot }, | |
4947 | { "daemon-reload", EQUAL, 1, daemon_reload }, | |
4948 | { "daemon-reexec", EQUAL, 1, daemon_reload }, | |
4949 | { "show-environment", EQUAL, 1, show_enviroment }, | |
4950 | { "set-environment", MORE, 2, set_environment }, | |
4951 | { "unset-environment", MORE, 2, set_environment }, | |
4952 | { "halt", EQUAL, 1, start_special }, | |
4953 | { "poweroff", EQUAL, 1, start_special }, | |
4954 | { "reboot", EQUAL, 1, start_special }, | |
4955 | { "kexec", EQUAL, 1, start_special }, | |
4956 | { "default", EQUAL, 1, start_special }, | |
4957 | { "rescue", EQUAL, 1, start_special }, | |
4958 | { "emergency", EQUAL, 1, start_special }, | |
4959 | { "exit", EQUAL, 1, start_special }, | |
4960 | { "reset-failed", MORE, 1, reset_failed }, | |
4961 | { "enable", MORE, 2, enable_unit }, | |
4962 | { "disable", MORE, 2, enable_unit }, | |
4963 | { "is-enabled", MORE, 2, enable_unit } | |
4964 | }; | |
4965 | ||
4966 | int left; | |
4967 | unsigned i; | |
4968 | ||
4969 | assert(argc >= 0); | |
4970 | assert(argv); | |
4971 | assert(error); | |
4972 | ||
4973 | left = argc - optind; | |
4974 | ||
4975 | if (left <= 0) | |
4976 | /* Special rule: no arguments means "list-units" */ | |
4977 | i = 0; | |
4978 | else { | |
4979 | if (streq(argv[optind], "help")) { | |
4980 | systemctl_help(); | |
4981 | return 0; | |
4982 | } | |
4983 | ||
4984 | for (i = 0; i < ELEMENTSOF(verbs); i++) | |
4985 | if (streq(argv[optind], verbs[i].verb)) | |
4986 | break; | |
4987 | ||
4988 | if (i >= ELEMENTSOF(verbs)) { | |
4989 | log_error("Unknown operation %s", argv[optind]); | |
4990 | return -EINVAL; | |
4991 | } | |
4992 | } | |
4993 | ||
4994 | switch (verbs[i].argc_cmp) { | |
4995 | ||
4996 | case EQUAL: | |
4997 | if (left != verbs[i].argc) { | |
4998 | log_error("Invalid number of arguments."); | |
4999 | return -EINVAL; | |
5000 | } | |
5001 | ||
5002 | break; | |
5003 | ||
5004 | case MORE: | |
5005 | if (left < verbs[i].argc) { | |
5006 | log_error("Too few arguments."); | |
5007 | return -EINVAL; | |
5008 | } | |
5009 | ||
5010 | break; | |
5011 | ||
5012 | case LESS: | |
5013 | if (left > verbs[i].argc) { | |
5014 | log_error("Too many arguments."); | |
5015 | return -EINVAL; | |
5016 | } | |
5017 | ||
5018 | break; | |
5019 | ||
5020 | default: | |
5021 | assert_not_reached("Unknown comparison operator."); | |
5022 | } | |
5023 | ||
5024 | /* Require a bus connection for all operations but | |
5025 | * enable/disable */ | |
5026 | if (!streq(verbs[i].verb, "enable") && | |
5027 | !streq(verbs[i].verb, "disable") && | |
5028 | !bus) { | |
5029 | log_error("Failed to get D-Bus connection: %s", error->message); | |
5030 | return -EIO; | |
5031 | } | |
5032 | ||
5033 | return verbs[i].dispatch(bus, argv + optind, left); | |
5034 | } | |
5035 | ||
5036 | static int send_shutdownd(usec_t t, char mode, bool warn, const char *message) { | |
5037 | int fd = -1; | |
5038 | struct msghdr msghdr; | |
5039 | struct iovec iovec; | |
5040 | union sockaddr_union sockaddr; | |
5041 | struct shutdownd_command c; | |
5042 | ||
5043 | zero(c); | |
5044 | c.elapse = t; | |
5045 | c.mode = mode; | |
5046 | c.warn_wall = warn; | |
5047 | ||
5048 | if (message) | |
5049 | strncpy(c.wall_message, message, sizeof(c.wall_message)); | |
5050 | ||
5051 | if ((fd = socket(AF_UNIX, SOCK_DGRAM|SOCK_CLOEXEC, 0)) < 0) | |
5052 | return -errno; | |
5053 | ||
5054 | zero(sockaddr); | |
5055 | sockaddr.sa.sa_family = AF_UNIX; | |
5056 | sockaddr.un.sun_path[0] = 0; | |
5057 | strncpy(sockaddr.un.sun_path+1, "/org/freedesktop/systemd1/shutdownd", sizeof(sockaddr.un.sun_path)-1); | |
5058 | ||
5059 | zero(iovec); | |
5060 | iovec.iov_base = (char*) &c; | |
5061 | iovec.iov_len = sizeof(c); | |
5062 | ||
5063 | zero(msghdr); | |
5064 | msghdr.msg_name = &sockaddr; | |
5065 | msghdr.msg_namelen = offsetof(struct sockaddr_un, sun_path) + 1 + sizeof("/org/freedesktop/systemd1/shutdownd") - 1; | |
5066 | ||
5067 | msghdr.msg_iov = &iovec; | |
5068 | msghdr.msg_iovlen = 1; | |
5069 | ||
5070 | if (sendmsg(fd, &msghdr, MSG_NOSIGNAL) < 0) { | |
5071 | close_nointr_nofail(fd); | |
5072 | return -errno; | |
5073 | } | |
5074 | ||
5075 | close_nointr_nofail(fd); | |
5076 | return 0; | |
5077 | } | |
5078 | ||
5079 | static int reload_with_fallback(DBusConnection *bus) { | |
5080 | ||
5081 | if (bus) { | |
5082 | /* First, try systemd via D-Bus. */ | |
5083 | if (daemon_reload(bus, NULL, 0) > 0) | |
5084 | return 0; | |
5085 | } | |
5086 | ||
5087 | /* Nothing else worked, so let's try signals */ | |
5088 | assert(arg_action == ACTION_RELOAD || arg_action == ACTION_REEXEC); | |
5089 | ||
5090 | if (kill(1, arg_action == ACTION_RELOAD ? SIGHUP : SIGTERM) < 0) { | |
5091 | log_error("kill() failed: %m"); | |
5092 | return -errno; | |
5093 | } | |
5094 | ||
5095 | return 0; | |
5096 | } | |
5097 | ||
5098 | static int start_with_fallback(DBusConnection *bus) { | |
5099 | ||
5100 | if (bus) { | |
5101 | /* First, try systemd via D-Bus. */ | |
5102 | if (start_unit(bus, NULL, 0) >= 0) | |
5103 | goto done; | |
5104 | } | |
5105 | ||
5106 | /* Hmm, talking to systemd via D-Bus didn't work. Then | |
5107 | * let's try to talk to Upstart via D-Bus. */ | |
5108 | if (talk_upstart() > 0) | |
5109 | goto done; | |
5110 | ||
5111 | /* Nothing else worked, so let's try | |
5112 | * /dev/initctl */ | |
5113 | if (talk_initctl() > 0) | |
5114 | goto done; | |
5115 | ||
5116 | log_error("Failed to talk to init daemon."); | |
5117 | return -EIO; | |
5118 | ||
5119 | done: | |
5120 | warn_wall(arg_action); | |
5121 | return 0; | |
5122 | } | |
5123 | ||
5124 | static int halt_main(DBusConnection *bus) { | |
5125 | int r; | |
5126 | ||
5127 | if (geteuid() != 0) { | |
5128 | log_error("Must be root."); | |
5129 | return -EPERM; | |
5130 | } | |
5131 | ||
5132 | if (arg_when > 0) { | |
5133 | char *m; | |
5134 | char date[FORMAT_TIMESTAMP_MAX]; | |
5135 | ||
5136 | m = strv_join(arg_wall, " "); | |
5137 | r = send_shutdownd(arg_when, | |
5138 | arg_action == ACTION_HALT ? 'H' : | |
5139 | arg_action == ACTION_POWEROFF ? 'P' : | |
5140 | 'r', | |
5141 | !arg_no_wall, | |
5142 | m); | |
5143 | free(m); | |
5144 | ||
5145 | if (r < 0) | |
5146 | log_warning("Failed to talk to shutdownd, proceeding with immediate shutdown: %s", strerror(-r)); | |
5147 | else { | |
5148 | log_info("Shutdown scheduled for %s, use 'shutdown -c' to cancel.", | |
5149 | format_timestamp(date, sizeof(date), arg_when)); | |
5150 | return 0; | |
5151 | } | |
5152 | } | |
5153 | ||
5154 | if (!arg_dry && !arg_immediate) | |
5155 | return start_with_fallback(bus); | |
5156 | ||
5157 | if (!arg_no_wtmp) { | |
5158 | if (sd_booted() > 0) | |
5159 | log_debug("Not writing utmp record, assuming that systemd-update-utmp is used."); | |
5160 | else if ((r = utmp_put_shutdown(0)) < 0) | |
5161 | log_warning("Failed to write utmp record: %s", strerror(-r)); | |
5162 | } | |
5163 | ||
5164 | if (!arg_no_sync) | |
5165 | sync(); | |
5166 | ||
5167 | if (arg_dry) | |
5168 | return 0; | |
5169 | ||
5170 | /* Make sure C-A-D is handled by the kernel from this | |
5171 | * point on... */ | |
5172 | reboot(RB_ENABLE_CAD); | |
5173 | ||
5174 | switch (arg_action) { | |
5175 | ||
5176 | case ACTION_HALT: | |
5177 | log_info("Halting."); | |
5178 | reboot(RB_HALT_SYSTEM); | |
5179 | break; | |
5180 | ||
5181 | case ACTION_POWEROFF: | |
5182 | log_info("Powering off."); | |
5183 | reboot(RB_POWER_OFF); | |
5184 | break; | |
5185 | ||
5186 | case ACTION_REBOOT: | |
5187 | log_info("Rebooting."); | |
5188 | reboot(RB_AUTOBOOT); | |
5189 | break; | |
5190 | ||
5191 | default: | |
5192 | assert_not_reached("Unknown halt action."); | |
5193 | } | |
5194 | ||
5195 | /* We should never reach this. */ | |
5196 | return -ENOSYS; | |
5197 | } | |
5198 | ||
5199 | static int runlevel_main(void) { | |
5200 | int r, runlevel, previous; | |
5201 | ||
5202 | if ((r = utmp_get_runlevel(&runlevel, &previous)) < 0) { | |
5203 | printf("unknown\n"); | |
5204 | return r; | |
5205 | } | |
5206 | ||
5207 | printf("%c %c\n", | |
5208 | previous <= 0 ? 'N' : previous, | |
5209 | runlevel <= 0 ? 'N' : runlevel); | |
5210 | ||
5211 | return 0; | |
5212 | } | |
5213 | ||
5214 | int main(int argc, char*argv[]) { | |
5215 | int r, retval = EXIT_FAILURE; | |
5216 | DBusConnection *bus = NULL; | |
5217 | DBusError error; | |
5218 | ||
5219 | dbus_error_init(&error); | |
5220 | ||
5221 | log_parse_environment(); | |
5222 | log_open(); | |
5223 | ||
5224 | if ((r = parse_argv(argc, argv)) < 0) | |
5225 | goto finish; | |
5226 | else if (r == 0) { | |
5227 | retval = EXIT_SUCCESS; | |
5228 | goto finish; | |
5229 | } | |
5230 | ||
5231 | /* /sbin/runlevel doesn't need to communicate via D-Bus, so | |
5232 | * let's shortcut this */ | |
5233 | if (arg_action == ACTION_RUNLEVEL) { | |
5234 | r = runlevel_main(); | |
5235 | retval = r < 0 ? EXIT_FAILURE : r; | |
5236 | goto finish; | |
5237 | } | |
5238 | ||
5239 | bus_connect(arg_session ? DBUS_BUS_SESSION : DBUS_BUS_SYSTEM, &bus, &private_bus, &error); | |
5240 | ||
5241 | switch (arg_action) { | |
5242 | ||
5243 | case ACTION_SYSTEMCTL: | |
5244 | r = systemctl_main(bus, argc, argv, &error); | |
5245 | break; | |
5246 | ||
5247 | case ACTION_HALT: | |
5248 | case ACTION_POWEROFF: | |
5249 | case ACTION_REBOOT: | |
5250 | r = halt_main(bus); | |
5251 | break; | |
5252 | ||
5253 | case ACTION_RUNLEVEL2: | |
5254 | case ACTION_RUNLEVEL3: | |
5255 | case ACTION_RUNLEVEL4: | |
5256 | case ACTION_RUNLEVEL5: | |
5257 | case ACTION_RESCUE: | |
5258 | case ACTION_EMERGENCY: | |
5259 | case ACTION_DEFAULT: | |
5260 | r = start_with_fallback(bus); | |
5261 | break; | |
5262 | ||
5263 | case ACTION_RELOAD: | |
5264 | case ACTION_REEXEC: | |
5265 | r = reload_with_fallback(bus); | |
5266 | break; | |
5267 | ||
5268 | case ACTION_CANCEL_SHUTDOWN: | |
5269 | r = send_shutdownd(0, 0, false, NULL); | |
5270 | break; | |
5271 | ||
5272 | case ACTION_INVALID: | |
5273 | case ACTION_RUNLEVEL: | |
5274 | default: | |
5275 | assert_not_reached("Unknown action"); | |
5276 | } | |
5277 | ||
5278 | retval = r < 0 ? EXIT_FAILURE : r; | |
5279 | ||
5280 | finish: | |
5281 | ||
5282 | if (bus) { | |
5283 | dbus_connection_flush(bus); | |
5284 | dbus_connection_close(bus); | |
5285 | dbus_connection_unref(bus); | |
5286 | } | |
5287 | ||
5288 | dbus_error_free(&error); | |
5289 | ||
5290 | dbus_shutdown(); | |
5291 | ||
5292 | strv_free(arg_property); | |
5293 | ||
5294 | return retval; | |
5295 | } |