chiark / gitweb /
7373e64e8c24c53011694634e01e767fc3136569
[elogind.git] / src / systemctl.c
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 #include <dbus/dbus.h>
37
38 #include "log.h"
39 #include "util.h"
40 #include "macro.h"
41 #include "set.h"
42 #include "utmp-wtmp.h"
43 #include "special.h"
44 #include "initreq.h"
45 #include "strv.h"
46 #include "dbus-common.h"
47 #include "cgroup-show.h"
48 #include "cgroup-util.h"
49 #include "list.h"
50 #include "path-lookup.h"
51 #include "conf-parser.h"
52 #include "sd-daemon.h"
53 #include "shutdownd.h"
54 #include "exit-status.h"
55 #include "bus-errors.h"
56 #include "build.h"
57 #include "unit-name.h"
58 #include "pager.h"
59 #include "spawn-agent.h"
60 #include "install.h"
61
62 static const char *arg_type = NULL;
63 static char **arg_property = NULL;
64 static bool arg_all = false;
65 static const char *arg_job_mode = "replace";
66 static UnitFileScope arg_scope = UNIT_FILE_SYSTEM;
67 static bool arg_immediate = false;
68 static bool arg_no_block = false;
69 static bool arg_no_legend = false;
70 static bool arg_no_pager = false;
71 static bool arg_no_wtmp = false;
72 static bool arg_no_sync = false;
73 static bool arg_no_wall = false;
74 static bool arg_no_reload = false;
75 static bool arg_dry = false;
76 static bool arg_quiet = false;
77 static bool arg_full = false;
78 static bool arg_force = false;
79 static bool arg_ask_password = false;
80 static bool arg_failed = false;
81 static bool arg_runtime = false;
82 static char **arg_wall = NULL;
83 static const char *arg_kill_who = NULL;
84 static const char *arg_kill_mode = NULL;
85 static int arg_signal = SIGTERM;
86 static const char *arg_root = NULL;
87 static usec_t arg_when = 0;
88 static enum action {
89         ACTION_INVALID,
90         ACTION_SYSTEMCTL,
91         ACTION_HALT,
92         ACTION_POWEROFF,
93         ACTION_REBOOT,
94         ACTION_KEXEC,
95         ACTION_EXIT,
96         ACTION_RUNLEVEL2,
97         ACTION_RUNLEVEL3,
98         ACTION_RUNLEVEL4,
99         ACTION_RUNLEVEL5,
100         ACTION_RESCUE,
101         ACTION_EMERGENCY,
102         ACTION_DEFAULT,
103         ACTION_RELOAD,
104         ACTION_REEXEC,
105         ACTION_RUNLEVEL,
106         ACTION_CANCEL_SHUTDOWN,
107         _ACTION_MAX
108 } arg_action = ACTION_SYSTEMCTL;
109 static enum dot {
110         DOT_ALL,
111         DOT_ORDER,
112         DOT_REQUIRE
113 } arg_dot = DOT_ALL;
114 static enum transport {
115         TRANSPORT_NORMAL,
116         TRANSPORT_SSH,
117         TRANSPORT_POLKIT
118 } arg_transport = TRANSPORT_NORMAL;
119 static const char *arg_host = NULL;
120
121 static bool private_bus = false;
122
123 static int daemon_reload(DBusConnection *bus, char **args);
124
125 static bool on_tty(void) {
126         static int t = -1;
127
128         /* Note that this is invoked relatively early, before we start
129          * the pager. That means the value we return reflects whether
130          * we originally were started on a tty, not if we currently
131          * are. But this is intended, since we want colour and so on
132          * when run in our own pager. */
133
134         if (_unlikely_(t < 0))
135                 t = isatty(STDOUT_FILENO) > 0;
136
137         return t;
138 }
139
140 static void pager_open_if_enabled(void) {
141
142         /* Cache result before we open the pager */
143         on_tty();
144
145         if (arg_no_pager)
146                 return;
147
148         pager_open();
149 }
150
151 static void agent_open_if_enabled(void) {
152
153         /* Open the password agent as a child process if necessary */
154
155         if (!arg_ask_password)
156                 return;
157
158         if (arg_scope != UNIT_FILE_SYSTEM)
159                 return;
160
161         agent_open();
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 void warn_wall(enum action action) {
224         static const char *table[_ACTION_MAX] = {
225                 [ACTION_HALT]      = "The system is going down for system halt NOW!",
226                 [ACTION_REBOOT]    = "The system is going down for reboot NOW!",
227                 [ACTION_POWEROFF]  = "The system is going down for power-off NOW!",
228                 [ACTION_KEXEC]     = "The system is going down for kexec reboot NOW!",
229                 [ACTION_RESCUE]    = "The system is going down to rescue mode NOW!",
230                 [ACTION_EMERGENCY] = "The system is going down to emergency mode NOW!"
231         };
232
233         if (arg_no_wall)
234                 return;
235
236         if (arg_wall) {
237                 char *p;
238
239                 if (!(p = strv_join(arg_wall, " "))) {
240                         log_error("Failed to join strings.");
241                         return;
242                 }
243
244                 if (*p) {
245                         utmp_wall(p, NULL);
246                         free(p);
247                         return;
248                 }
249
250                 free(p);
251         }
252
253         if (!table[action])
254                 return;
255
256         utmp_wall(table[action], NULL);
257 }
258
259 static bool avoid_bus(void) {
260
261         if (running_in_chroot() > 0)
262                 return true;
263
264         if (sd_booted() <= 0)
265                 return true;
266
267         if (!isempty(arg_root))
268                 return true;
269
270         if (arg_scope == UNIT_FILE_GLOBAL)
271                 return true;
272
273         return false;
274 }
275
276 struct unit_info {
277         const char *id;
278         const char *description;
279         const char *load_state;
280         const char *active_state;
281         const char *sub_state;
282         const char *following;
283         const char *unit_path;
284         uint32_t job_id;
285         const char *job_type;
286         const char *job_path;
287 };
288
289 static int compare_unit_info(const void *a, const void *b) {
290         const char *d1, *d2;
291         const struct unit_info *u = a, *v = b;
292
293         d1 = strrchr(u->id, '.');
294         d2 = strrchr(v->id, '.');
295
296         if (d1 && d2) {
297                 int r;
298
299                 if ((r = strcasecmp(d1, d2)) != 0)
300                         return r;
301         }
302
303         return strcasecmp(u->id, v->id);
304 }
305
306 static bool output_show_unit(const struct unit_info *u) {
307         const char *dot;
308
309         if (arg_failed)
310                 return streq(u->active_state, "failed");
311
312         return (!arg_type || ((dot = strrchr(u->id, '.')) &&
313                               streq(dot+1, arg_type))) &&
314                 (arg_all || !(streq(u->active_state, "inactive") || u->following[0]) || u->job_id > 0);
315 }
316
317 static void output_units_list(const struct unit_info *unit_infos, unsigned c) {
318         unsigned id_len, max_id_len, active_len, sub_len, job_len, desc_len, n_shown = 0;
319         const struct unit_info *u;
320
321         max_id_len = sizeof("UNIT")-1;
322         active_len = sizeof("ACTIVE")-1;
323         sub_len = sizeof("SUB")-1;
324         job_len = sizeof("JOB")-1;
325         desc_len = 0;
326
327         for (u = unit_infos; u < unit_infos + c; u++) {
328                 if (!output_show_unit(u))
329                         continue;
330
331                 max_id_len = MAX(max_id_len, strlen(u->id));
332                 active_len = MAX(active_len, strlen(u->active_state));
333                 sub_len = MAX(sub_len, strlen(u->sub_state));
334                 if (u->job_id != 0)
335                         job_len = MAX(job_len, strlen(u->job_type));
336         }
337
338         if (!arg_full) {
339                 unsigned basic_len;
340                 id_len = MIN(max_id_len, 25);
341                 basic_len = 5 + id_len + 6 + active_len + sub_len + job_len;
342                 if (basic_len < (unsigned) columns()) {
343                         unsigned extra_len, incr;
344                         extra_len = columns() - basic_len;
345                         /* Either UNIT already got 25, or is fully satisfied.
346                          * Grant up to 25 to DESC now. */
347                         incr = MIN(extra_len, 25);
348                         desc_len += incr;
349                         extra_len -= incr;
350                         /* split the remaining space between UNIT and DESC,
351                          * but do not give UNIT more than it needs. */
352                         if (extra_len > 0) {
353                                 incr = MIN(extra_len / 2, max_id_len - id_len);
354                                 id_len += incr;
355                                 desc_len += extra_len - incr;
356                         }
357                 }
358         } else
359                 id_len = max_id_len;
360
361         if (!arg_no_legend) {
362                 printf("%-*s %-6s %-*s %-*s %-*s ", id_len, "UNIT", "LOAD",
363                        active_len, "ACTIVE", sub_len, "SUB", job_len, "JOB");
364                 if (!arg_full && arg_no_pager)
365                         printf("%.*s\n", desc_len, "DESCRIPTION");
366                 else
367                         printf("%s\n", "DESCRIPTION");
368         }
369
370         for (u = unit_infos; u < unit_infos + c; u++) {
371                 char *e;
372                 const char *on_loaded, *off_loaded;
373                 const char *on_active, *off_active;
374
375                 if (!output_show_unit(u))
376                         continue;
377
378                 n_shown++;
379
380                 if (!streq(u->load_state, "loaded") &&
381                     !streq(u->load_state, "banned")) {
382                         on_loaded = ansi_highlight(true);
383                         off_loaded = ansi_highlight(false);
384                 } else
385                         on_loaded = off_loaded = "";
386
387                 if (streq(u->active_state, "failed")) {
388                         on_active = ansi_highlight(true);
389                         off_active = ansi_highlight(false);
390                 } else
391                         on_active = off_active = "";
392
393                 e = arg_full ? NULL : ellipsize(u->id, id_len, 33);
394
395                 printf("%-*s %s%-6s%s %s%-*s %-*s%s %-*s ",
396                        id_len, e ? e : u->id,
397                        on_loaded, u->load_state, off_loaded,
398                        on_active, active_len, u->active_state,
399                        sub_len, u->sub_state, off_active,
400                        job_len, u->job_id ? u->job_type : "");
401                 if (!arg_full && arg_no_pager)
402                         printf("%.*s\n", desc_len, u->description);
403                 else
404                         printf("%s\n", u->description);
405
406                 free(e);
407         }
408
409         if (!arg_no_legend) {
410                 printf("\nLOAD   = Reflects whether the unit definition was properly loaded.\n"
411                        "ACTIVE = The high-level unit activation state, i.e. generalization of SUB.\n"
412                        "SUB    = The low-level unit activation state, values depend on unit type.\n"
413                        "JOB    = Pending job for the unit.\n");
414
415                 if (arg_all)
416                         printf("\n%u units listed.\n", n_shown);
417                 else
418                         printf("\n%u units listed. Pass --all to see inactive units, too.\n", n_shown);
419         }
420 }
421
422 static int list_units(DBusConnection *bus, char **args) {
423         DBusMessage *m = NULL, *reply = NULL;
424         DBusError error;
425         int r;
426         DBusMessageIter iter, sub, sub2;
427         unsigned c = 0, n_units = 0;
428         struct unit_info *unit_infos = NULL;
429
430         dbus_error_init(&error);
431
432         assert(bus);
433
434         pager_open_if_enabled();
435
436         if (!(m = dbus_message_new_method_call(
437                               "org.freedesktop.systemd1",
438                               "/org/freedesktop/systemd1",
439                               "org.freedesktop.systemd1.Manager",
440                               "ListUnits"))) {
441                 log_error("Could not allocate message.");
442                 return -ENOMEM;
443         }
444
445         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
446                 log_error("Failed to issue method call: %s", bus_error_message(&error));
447                 r = -EIO;
448                 goto finish;
449         }
450
451         if (!dbus_message_iter_init(reply, &iter) ||
452             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
453             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT)  {
454                 log_error("Failed to parse reply.");
455                 r = -EIO;
456                 goto finish;
457         }
458
459         dbus_message_iter_recurse(&iter, &sub);
460
461         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
462                 struct unit_info *u;
463
464                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
465                         log_error("Failed to parse reply.");
466                         r = -EIO;
467                         goto finish;
468                 }
469
470                 if (c >= n_units) {
471                         struct unit_info *w;
472
473                         n_units = MAX(2*c, 16);
474                         w = realloc(unit_infos, sizeof(struct unit_info) * n_units);
475
476                         if (!w) {
477                                 log_error("Failed to allocate unit array.");
478                                 r = -ENOMEM;
479                                 goto finish;
480                         }
481
482                         unit_infos = w;
483                 }
484
485                 u = unit_infos+c;
486
487                 dbus_message_iter_recurse(&sub, &sub2);
488
489                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->id, true) < 0 ||
490                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->description, true) < 0 ||
491                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->load_state, true) < 0 ||
492                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->active_state, true) < 0 ||
493                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->sub_state, true) < 0 ||
494                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->following, true) < 0 ||
495                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->unit_path, true) < 0 ||
496                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &u->job_id, true) < 0 ||
497                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->job_type, true) < 0 ||
498                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &u->job_path, false) < 0) {
499                         log_error("Failed to parse reply.");
500                         r = -EIO;
501                         goto finish;
502                 }
503
504                 dbus_message_iter_next(&sub);
505                 c++;
506         }
507
508         if (c > 0) {
509                 qsort(unit_infos, c, sizeof(struct unit_info), compare_unit_info);
510                 output_units_list(unit_infos, c);
511         }
512
513         r = 0;
514
515 finish:
516         if (m)
517                 dbus_message_unref(m);
518
519         if (reply)
520                 dbus_message_unref(reply);
521
522         free(unit_infos);
523
524         dbus_error_free(&error);
525
526         return r;
527 }
528
529 static int compare_unit_file_list(const void *a, const void *b) {
530         const char *d1, *d2;
531         const UnitFileList *u = a, *v = b;
532
533         d1 = strrchr(u->path, '.');
534         d2 = strrchr(v->path, '.');
535
536         if (d1 && d2) {
537                 int r;
538
539                 r = strcasecmp(d1, d2);
540                 if (r != 0)
541                         return r;
542         }
543
544         return strcasecmp(file_name_from_path(u->path), file_name_from_path(v->path));
545 }
546
547 static bool output_show_unit_file(const UnitFileList *u) {
548         const char *dot;
549
550         return !arg_type || ((dot = strrchr(u->path, '.')) && streq(dot+1, arg_type));
551 }
552
553 static void output_unit_file_list(const UnitFileList *units, unsigned c) {
554         unsigned max_id_len, id_cols, state_cols, n_shown = 0;
555         const UnitFileList *u;
556
557         max_id_len = sizeof("UNIT FILE")-1;
558         state_cols = sizeof("STATE")-1;
559         for (u = units; u < units + c; u++) {
560                 if (!output_show_unit_file(u))
561                         continue;
562
563                 max_id_len = MAX(max_id_len, strlen(file_name_from_path(u->path)));
564                 state_cols = MAX(state_cols, strlen(unit_file_state_to_string(u->state)));
565         }
566
567         if (!arg_full) {
568                 unsigned basic_cols;
569                 id_cols = MIN(max_id_len, 25);
570                 basic_cols = 1 + id_cols + state_cols;
571                 if (basic_cols < (unsigned) columns())
572                         id_cols += MIN(columns() - basic_cols, max_id_len - id_cols);
573         } else
574                 id_cols = max_id_len;
575
576         if (!arg_no_legend)
577                 printf("%-*s %-*s\n", id_cols, "UNIT FILE", state_cols, "STATE");
578
579         for (u = units; u < units + c; u++) {
580                 char *e;
581                 const char *on, *off;
582                 const char *id;
583
584                 if (!output_show_unit_file(u))
585                         continue;
586
587                 n_shown++;
588
589                 if (u->state == UNIT_FILE_MASKED ||
590                     u->state == UNIT_FILE_MASKED_RUNTIME ||
591                     u->state == UNIT_FILE_DISABLED) {
592                         on  = ansi_highlight(true);
593                         off = ansi_highlight(false);
594                 } else if (u->state == UNIT_FILE_ENABLED) {
595                         on  = ansi_highlight_green(true);
596                         off = ansi_highlight_green(false);
597                 } else
598                         on = off = "";
599
600                 id = file_name_from_path(u->path);
601
602                 e = arg_full ? NULL : ellipsize(id, id_cols, 33);
603
604                 printf("%-*s %s%-*s%s\n",
605                        id_cols, e ? e : id,
606                        on, state_cols, unit_file_state_to_string(u->state), off);
607
608                 free(e);
609         }
610
611         if (!arg_no_legend)
612                 printf("\n%u unit files listed.\n", n_shown);
613 }
614
615 static int list_unit_files(DBusConnection *bus, char **args) {
616         DBusMessage *m = NULL, *reply = NULL;
617         DBusError error;
618         int r;
619         DBusMessageIter iter, sub, sub2;
620         unsigned c = 0, n_units = 0;
621         UnitFileList *units = NULL;
622
623         dbus_error_init(&error);
624
625         assert(bus);
626
627         pager_open_if_enabled();
628
629         if (avoid_bus()) {
630                 Hashmap *h;
631                 UnitFileList *u;
632                 Iterator i;
633
634                 h = hashmap_new(string_hash_func, string_compare_func);
635                 if (!h) {
636                         log_error("Out of memory");
637                         return -ENOMEM;
638                 }
639
640                 r = unit_file_get_list(arg_scope, arg_root, h);
641                 if (r < 0) {
642                         unit_file_list_free(h);
643                         log_error("Failed to get unit file list: %s", strerror(-r));
644                         return r;
645                 }
646
647                 n_units = hashmap_size(h);
648                 units = new(UnitFileList, n_units);
649                 if (!units) {
650                         unit_file_list_free(h);
651                         log_error("Out of memory");
652                         return -ENOMEM;
653                 }
654
655                 HASHMAP_FOREACH(u, h, i) {
656                         memcpy(units + c++, u, sizeof(UnitFileList));
657                         free(u);
658                 }
659
660                 hashmap_free(h);
661         } else {
662                 m = dbus_message_new_method_call(
663                                 "org.freedesktop.systemd1",
664                                 "/org/freedesktop/systemd1",
665                                 "org.freedesktop.systemd1.Manager",
666                                 "ListUnitFiles");
667                 if (!m) {
668                         log_error("Could not allocate message.");
669                         return -ENOMEM;
670                 }
671
672                 reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error);
673                 if (!reply) {
674                         log_error("Failed to issue method call: %s", bus_error_message(&error));
675                         r = -EIO;
676                         goto finish;
677                 }
678
679                 if (!dbus_message_iter_init(reply, &iter) ||
680                     dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
681                     dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT)  {
682                         log_error("Failed to parse reply.");
683                         r = -EIO;
684                         goto finish;
685                 }
686
687                 dbus_message_iter_recurse(&iter, &sub);
688
689                 while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
690                         UnitFileList *u;
691                         const char *state;
692
693                         if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
694                                 log_error("Failed to parse reply.");
695                                 r = -EIO;
696                                 goto finish;
697                         }
698
699                         if (c >= n_units) {
700                                 UnitFileList *w;
701
702                                 n_units = MAX(2*c, 16);
703                                 w = realloc(units, sizeof(struct UnitFileList) * n_units);
704
705                                 if (!w) {
706                                         log_error("Failed to allocate unit array.");
707                                         r = -ENOMEM;
708                                         goto finish;
709                                 }
710
711                                 units = w;
712                         }
713
714                         u = units+c;
715
716                         dbus_message_iter_recurse(&sub, &sub2);
717
718                         if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &u->path, true) < 0 ||
719                             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, false) < 0) {
720                                 log_error("Failed to parse reply.");
721                                 r = -EIO;
722                                 goto finish;
723                         }
724
725                         u->state = unit_file_state_from_string(state);
726
727                         dbus_message_iter_next(&sub);
728                         c++;
729                 }
730         }
731
732         if (c > 0) {
733                 qsort(units, c, sizeof(UnitFileList), compare_unit_file_list);
734                 output_unit_file_list(units, c);
735         }
736
737         r = 0;
738
739 finish:
740         if (m)
741                 dbus_message_unref(m);
742
743         if (reply)
744                 dbus_message_unref(reply);
745
746         free(units);
747
748         dbus_error_free(&error);
749
750         return r;
751 }
752
753 static int dot_one_property(const char *name, const char *prop, DBusMessageIter *iter) {
754         static const char * const colors[] = {
755                 "Requires",              "[color=\"black\"]",
756                 "RequiresOverridable",   "[color=\"black\"]",
757                 "Requisite",             "[color=\"darkblue\"]",
758                 "RequisiteOverridable",  "[color=\"darkblue\"]",
759                 "Wants",                 "[color=\"darkgrey\"]",
760                 "Conflicts",             "[color=\"red\"]",
761                 "ConflictedBy",          "[color=\"red\"]",
762                 "After",                 "[color=\"green\"]"
763         };
764
765         const char *c = NULL;
766         unsigned i;
767
768         assert(name);
769         assert(prop);
770         assert(iter);
771
772         for (i = 0; i < ELEMENTSOF(colors); i += 2)
773                 if (streq(colors[i], prop)) {
774                         c = colors[i+1];
775                         break;
776                 }
777
778         if (!c)
779                 return 0;
780
781         if (arg_dot != DOT_ALL)
782                 if ((arg_dot == DOT_ORDER) != streq(prop, "After"))
783                         return 0;
784
785         switch (dbus_message_iter_get_arg_type(iter)) {
786
787         case DBUS_TYPE_ARRAY:
788
789                 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRING) {
790                         DBusMessageIter sub;
791
792                         dbus_message_iter_recurse(iter, &sub);
793
794                         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
795                                 const char *s;
796
797                                 assert(dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING);
798                                 dbus_message_iter_get_basic(&sub, &s);
799                                 printf("\t\"%s\"->\"%s\" %s;\n", name, s, c);
800
801                                 dbus_message_iter_next(&sub);
802                         }
803
804                         return 0;
805                 }
806         }
807
808         return 0;
809 }
810
811 static int dot_one(DBusConnection *bus, const char *name, const char *path) {
812         DBusMessage *m = NULL, *reply = NULL;
813         const char *interface = "org.freedesktop.systemd1.Unit";
814         int r;
815         DBusError error;
816         DBusMessageIter iter, sub, sub2, sub3;
817
818         assert(bus);
819         assert(path);
820
821         dbus_error_init(&error);
822
823         if (!(m = dbus_message_new_method_call(
824                               "org.freedesktop.systemd1",
825                               path,
826                               "org.freedesktop.DBus.Properties",
827                               "GetAll"))) {
828                 log_error("Could not allocate message.");
829                 r = -ENOMEM;
830                 goto finish;
831         }
832
833         if (!dbus_message_append_args(m,
834                                       DBUS_TYPE_STRING, &interface,
835                                       DBUS_TYPE_INVALID)) {
836                 log_error("Could not append arguments to message.");
837                 r = -ENOMEM;
838                 goto finish;
839         }
840
841         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
842                 log_error("Failed to issue method call: %s", bus_error_message(&error));
843                 r = -EIO;
844                 goto finish;
845         }
846
847         if (!dbus_message_iter_init(reply, &iter) ||
848             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
849             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY)  {
850                 log_error("Failed to parse reply.");
851                 r = -EIO;
852                 goto finish;
853         }
854
855         dbus_message_iter_recurse(&iter, &sub);
856
857         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
858                 const char *prop;
859
860                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
861                         log_error("Failed to parse reply.");
862                         r = -EIO;
863                         goto finish;
864                 }
865
866                 dbus_message_iter_recurse(&sub, &sub2);
867
868                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &prop, true) < 0) {
869                         log_error("Failed to parse reply.");
870                         r = -EIO;
871                         goto finish;
872                 }
873
874                 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT)  {
875                         log_error("Failed to parse reply.");
876                         r = -EIO;
877                         goto finish;
878                 }
879
880                 dbus_message_iter_recurse(&sub2, &sub3);
881
882                 if (dot_one_property(name, prop, &sub3)) {
883                         log_error("Failed to parse reply.");
884                         r = -EIO;
885                         goto finish;
886                 }
887
888                 dbus_message_iter_next(&sub);
889         }
890
891         r = 0;
892
893 finish:
894         if (m)
895                 dbus_message_unref(m);
896
897         if (reply)
898                 dbus_message_unref(reply);
899
900         dbus_error_free(&error);
901
902         return r;
903 }
904
905 static int dot(DBusConnection *bus, char **args) {
906         DBusMessage *m = NULL, *reply = NULL;
907         DBusError error;
908         int r;
909         DBusMessageIter iter, sub, sub2;
910
911         dbus_error_init(&error);
912
913         assert(bus);
914
915         if (!(m = dbus_message_new_method_call(
916                               "org.freedesktop.systemd1",
917                               "/org/freedesktop/systemd1",
918                               "org.freedesktop.systemd1.Manager",
919                               "ListUnits"))) {
920                 log_error("Could not allocate message.");
921                 return -ENOMEM;
922         }
923
924         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
925                 log_error("Failed to issue method call: %s", bus_error_message(&error));
926                 r = -EIO;
927                 goto finish;
928         }
929
930         if (!dbus_message_iter_init(reply, &iter) ||
931             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
932             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT)  {
933                 log_error("Failed to parse reply.");
934                 r = -EIO;
935                 goto finish;
936         }
937
938         printf("digraph systemd {\n");
939
940         dbus_message_iter_recurse(&iter, &sub);
941         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
942                 const char *id, *description, *load_state, *active_state, *sub_state, *following, *unit_path;
943
944                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
945                         log_error("Failed to parse reply.");
946                         r = -EIO;
947                         goto finish;
948                 }
949
950                 dbus_message_iter_recurse(&sub, &sub2);
951
952                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &id, true) < 0 ||
953                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &description, true) < 0 ||
954                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &load_state, true) < 0 ||
955                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &active_state, true) < 0 ||
956                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &sub_state, true) < 0 ||
957                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &following, true) < 0 ||
958                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, true) < 0) {
959                         log_error("Failed to parse reply.");
960                         r = -EIO;
961                         goto finish;
962                 }
963
964                 if ((r = dot_one(bus, id, unit_path)) < 0)
965                         goto finish;
966
967                 /* printf("\t\"%s\";\n", id); */
968                 dbus_message_iter_next(&sub);
969         }
970
971         printf("}\n");
972
973         log_info("   Color legend: black     = Requires\n"
974                  "                 dark blue = Requisite\n"
975                  "                 dark grey = Wants\n"
976                  "                 red       = Conflicts\n"
977                  "                 green     = After\n");
978
979         if (on_tty())
980                 log_notice("-- You probably want to process this output with graphviz' dot tool.\n"
981                            "-- Try a shell pipeline like 'systemctl dot | dot -Tsvg > systemd.svg'!\n");
982
983         r = 0;
984
985 finish:
986         if (m)
987                 dbus_message_unref(m);
988
989         if (reply)
990                 dbus_message_unref(reply);
991
992         dbus_error_free(&error);
993
994         return r;
995 }
996
997 static int list_jobs(DBusConnection *bus, char **args) {
998         DBusMessage *m = NULL, *reply = NULL;
999         DBusError error;
1000         int r;
1001         DBusMessageIter iter, sub, sub2;
1002         unsigned k = 0;
1003
1004         dbus_error_init(&error);
1005
1006         assert(bus);
1007
1008         pager_open_if_enabled();
1009
1010         if (!(m = dbus_message_new_method_call(
1011                               "org.freedesktop.systemd1",
1012                               "/org/freedesktop/systemd1",
1013                               "org.freedesktop.systemd1.Manager",
1014                               "ListJobs"))) {
1015                 log_error("Could not allocate message.");
1016                 return -ENOMEM;
1017         }
1018
1019         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1020                 log_error("Failed to issue method call: %s", bus_error_message(&error));
1021                 r = -EIO;
1022                 goto finish;
1023         }
1024
1025         if (!dbus_message_iter_init(reply, &iter) ||
1026             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
1027             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRUCT)  {
1028                 log_error("Failed to parse reply.");
1029                 r = -EIO;
1030                 goto finish;
1031         }
1032
1033         dbus_message_iter_recurse(&iter, &sub);
1034
1035         if (on_tty())
1036                 printf("%4s %-25s %-15s %-7s\n", "JOB", "UNIT", "TYPE", "STATE");
1037
1038         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
1039                 const char *name, *type, *state, *job_path, *unit_path;
1040                 uint32_t id;
1041                 char *e;
1042
1043                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRUCT) {
1044                         log_error("Failed to parse reply.");
1045                         r = -EIO;
1046                         goto finish;
1047                 }
1048
1049                 dbus_message_iter_recurse(&sub, &sub2);
1050
1051                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &id, true) < 0 ||
1052                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0 ||
1053                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) < 0 ||
1054                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &state, true) < 0 ||
1055                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &job_path, true) < 0 ||
1056                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_OBJECT_PATH, &unit_path, false) < 0) {
1057                         log_error("Failed to parse reply.");
1058                         r = -EIO;
1059                         goto finish;
1060                 }
1061
1062                 e = arg_full ? NULL : ellipsize(name, 25, 33);
1063                 printf("%4u %-25s %-15s %-7s\n", id, e ? e : name, type, state);
1064                 free(e);
1065
1066                 k++;
1067
1068                 dbus_message_iter_next(&sub);
1069         }
1070
1071         if (on_tty())
1072                 printf("\n%u jobs listed.\n", k);
1073
1074         r = 0;
1075
1076 finish:
1077         if (m)
1078                 dbus_message_unref(m);
1079
1080         if (reply)
1081                 dbus_message_unref(reply);
1082
1083         dbus_error_free(&error);
1084
1085         return r;
1086 }
1087
1088 static int load_unit(DBusConnection *bus, char **args) {
1089         DBusMessage *m = NULL;
1090         DBusError error;
1091         int r;
1092         char **name;
1093
1094         dbus_error_init(&error);
1095
1096         assert(bus);
1097         assert(args);
1098
1099         STRV_FOREACH(name, args+1) {
1100                 DBusMessage *reply;
1101
1102                 if (!(m = dbus_message_new_method_call(
1103                                       "org.freedesktop.systemd1",
1104                                       "/org/freedesktop/systemd1",
1105                                       "org.freedesktop.systemd1.Manager",
1106                                       "LoadUnit"))) {
1107                         log_error("Could not allocate message.");
1108                         r = -ENOMEM;
1109                         goto finish;
1110                 }
1111
1112                 if (!dbus_message_append_args(m,
1113                                               DBUS_TYPE_STRING, name,
1114                                               DBUS_TYPE_INVALID)) {
1115                         log_error("Could not append arguments to message.");
1116                         r = -ENOMEM;
1117                         goto finish;
1118                 }
1119
1120                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1121                         log_error("Failed to issue method call: %s", bus_error_message(&error));
1122                         r = -EIO;
1123                         goto finish;
1124                 }
1125
1126                 dbus_message_unref(m);
1127                 dbus_message_unref(reply);
1128
1129                 m = reply = NULL;
1130         }
1131
1132         r = 0;
1133
1134 finish:
1135         if (m)
1136                 dbus_message_unref(m);
1137
1138         dbus_error_free(&error);
1139
1140         return r;
1141 }
1142
1143 static int cancel_job(DBusConnection *bus, char **args) {
1144         DBusMessage *m = NULL, *reply = NULL;
1145         DBusError error;
1146         int r;
1147         char **name;
1148
1149         dbus_error_init(&error);
1150
1151         assert(bus);
1152         assert(args);
1153
1154         if (strv_length(args) <= 1)
1155                 return daemon_reload(bus, args);
1156
1157         STRV_FOREACH(name, args+1) {
1158                 unsigned id;
1159                 const char *path;
1160
1161                 if (!(m = dbus_message_new_method_call(
1162                                       "org.freedesktop.systemd1",
1163                                       "/org/freedesktop/systemd1",
1164                                       "org.freedesktop.systemd1.Manager",
1165                                       "GetJob"))) {
1166                         log_error("Could not allocate message.");
1167                         r = -ENOMEM;
1168                         goto finish;
1169                 }
1170
1171                 if ((r = safe_atou(*name, &id)) < 0) {
1172                         log_error("Failed to parse job id: %s", strerror(-r));
1173                         goto finish;
1174                 }
1175
1176                 assert_cc(sizeof(uint32_t) == sizeof(id));
1177                 if (!dbus_message_append_args(m,
1178                                               DBUS_TYPE_UINT32, &id,
1179                                               DBUS_TYPE_INVALID)) {
1180                         log_error("Could not append arguments to message.");
1181                         r = -ENOMEM;
1182                         goto finish;
1183                 }
1184
1185                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1186                         log_error("Failed to issue method call: %s", bus_error_message(&error));
1187                         r = -EIO;
1188                         goto finish;
1189                 }
1190
1191                 if (!dbus_message_get_args(reply, &error,
1192                                            DBUS_TYPE_OBJECT_PATH, &path,
1193                                            DBUS_TYPE_INVALID)) {
1194                         log_error("Failed to parse reply: %s", bus_error_message(&error));
1195                         r = -EIO;
1196                         goto finish;
1197                 }
1198
1199                 dbus_message_unref(m);
1200                 if (!(m = dbus_message_new_method_call(
1201                                       "org.freedesktop.systemd1",
1202                                       path,
1203                                       "org.freedesktop.systemd1.Job",
1204                                       "Cancel"))) {
1205                         log_error("Could not allocate message.");
1206                         r = -ENOMEM;
1207                         goto finish;
1208                 }
1209
1210                 dbus_message_unref(reply);
1211                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1212                         log_error("Failed to issue method call: %s", bus_error_message(&error));
1213                         r = -EIO;
1214                         goto finish;
1215                 }
1216
1217                 dbus_message_unref(m);
1218                 dbus_message_unref(reply);
1219                 m = reply = NULL;
1220         }
1221
1222         r = 0;
1223
1224 finish:
1225         if (m)
1226                 dbus_message_unref(m);
1227
1228         if (reply)
1229                 dbus_message_unref(reply);
1230
1231         dbus_error_free(&error);
1232
1233         return r;
1234 }
1235
1236 static bool need_daemon_reload(DBusConnection *bus, const char *unit) {
1237         DBusMessage *m = NULL, *reply = NULL;
1238         dbus_bool_t b = FALSE;
1239         DBusMessageIter iter, sub;
1240         const char
1241                 *interface = "org.freedesktop.systemd1.Unit",
1242                 *property = "NeedDaemonReload",
1243                 *path;
1244
1245         /* We ignore all errors here, since this is used to show a warning only */
1246
1247         if (!(m = dbus_message_new_method_call(
1248                               "org.freedesktop.systemd1",
1249                               "/org/freedesktop/systemd1",
1250                               "org.freedesktop.systemd1.Manager",
1251                               "GetUnit")))
1252                 goto finish;
1253
1254         if (!dbus_message_append_args(m,
1255                                       DBUS_TYPE_STRING, &unit,
1256                                       DBUS_TYPE_INVALID))
1257                 goto finish;
1258
1259         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1260                 goto finish;
1261
1262         if (!dbus_message_get_args(reply, NULL,
1263                                    DBUS_TYPE_OBJECT_PATH, &path,
1264                                    DBUS_TYPE_INVALID))
1265                 goto finish;
1266
1267         dbus_message_unref(m);
1268         if (!(m = dbus_message_new_method_call(
1269                               "org.freedesktop.systemd1",
1270                               path,
1271                               "org.freedesktop.DBus.Properties",
1272                               "Get")))
1273                 goto finish;
1274
1275         if (!dbus_message_append_args(m,
1276                                       DBUS_TYPE_STRING, &interface,
1277                                       DBUS_TYPE_STRING, &property,
1278                                       DBUS_TYPE_INVALID)) {
1279                 goto finish;
1280         }
1281
1282         dbus_message_unref(reply);
1283         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, NULL)))
1284                 goto finish;
1285
1286         if (!dbus_message_iter_init(reply, &iter) ||
1287             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)
1288                 goto finish;
1289
1290         dbus_message_iter_recurse(&iter, &sub);
1291
1292         if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_BOOLEAN)
1293                 goto finish;
1294
1295         dbus_message_iter_get_basic(&sub, &b);
1296
1297 finish:
1298         if (m)
1299                 dbus_message_unref(m);
1300
1301         if (reply)
1302                 dbus_message_unref(reply);
1303
1304         return b;
1305 }
1306
1307 typedef struct WaitData {
1308         Set *set;
1309         char *result;
1310 } WaitData;
1311
1312 static DBusHandlerResult wait_filter(DBusConnection *connection, DBusMessage *message, void *data) {
1313         DBusError error;
1314         WaitData *d = data;
1315
1316         assert(connection);
1317         assert(message);
1318         assert(d);
1319
1320         dbus_error_init(&error);
1321
1322         log_debug("Got D-Bus request: %s.%s() on %s",
1323                   dbus_message_get_interface(message),
1324                   dbus_message_get_member(message),
1325                   dbus_message_get_path(message));
1326
1327         if (dbus_message_is_signal(message, DBUS_INTERFACE_LOCAL, "Disconnected")) {
1328                 log_error("Warning! D-Bus connection terminated.");
1329                 dbus_connection_close(connection);
1330
1331         } else if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Manager", "JobRemoved")) {
1332                 uint32_t id;
1333                 const char *path, *result;
1334                 dbus_bool_t success = true;
1335
1336                 if (dbus_message_get_args(message, &error,
1337                                           DBUS_TYPE_UINT32, &id,
1338                                           DBUS_TYPE_OBJECT_PATH, &path,
1339                                           DBUS_TYPE_STRING, &result,
1340                                           DBUS_TYPE_INVALID)) {
1341                         char *p;
1342
1343                         if ((p = set_remove(d->set, (char*) path)))
1344                                 free(p);
1345
1346                         if (*result)
1347                                 d->result = strdup(result);
1348
1349                         goto finish;
1350                 }
1351 #ifndef LEGACY
1352                 dbus_error_free(&error);
1353
1354                 if (dbus_message_get_args(message, &error,
1355                                           DBUS_TYPE_UINT32, &id,
1356                                           DBUS_TYPE_OBJECT_PATH, &path,
1357                                           DBUS_TYPE_BOOLEAN, &success,
1358                                           DBUS_TYPE_INVALID)) {
1359                         char *p;
1360
1361                         /* Compatibility with older systemd versions <
1362                          * 19 during upgrades. This should be dropped
1363                          * one day */
1364
1365                         if ((p = set_remove(d->set, (char*) path)))
1366                                 free(p);
1367
1368                         if (!success)
1369                                 d->result = strdup("failed");
1370
1371                         goto finish;
1372                 }
1373 #endif
1374
1375                 log_error("Failed to parse message: %s", bus_error_message(&error));
1376         }
1377
1378 finish:
1379         dbus_error_free(&error);
1380         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1381 }
1382
1383 static int enable_wait_for_jobs(DBusConnection *bus) {
1384         DBusError error;
1385
1386         assert(bus);
1387
1388         if (private_bus)
1389                 return 0;
1390
1391         dbus_error_init(&error);
1392         dbus_bus_add_match(bus,
1393                            "type='signal',"
1394                            "sender='org.freedesktop.systemd1',"
1395                            "interface='org.freedesktop.systemd1.Manager',"
1396                            "member='JobRemoved',"
1397                            "path='/org/freedesktop/systemd1'",
1398                            &error);
1399
1400         if (dbus_error_is_set(&error)) {
1401                 log_error("Failed to add match: %s", bus_error_message(&error));
1402                 dbus_error_free(&error);
1403                 return -EIO;
1404         }
1405
1406         /* This is slightly dirty, since we don't undo the match registrations. */
1407         return 0;
1408 }
1409
1410 static int wait_for_jobs(DBusConnection *bus, Set *s) {
1411         int r;
1412         WaitData d;
1413
1414         assert(bus);
1415         assert(s);
1416
1417         zero(d);
1418         d.set = s;
1419
1420         if (!dbus_connection_add_filter(bus, wait_filter, &d, NULL)) {
1421                 log_error("Failed to add filter.");
1422                 r = -ENOMEM;
1423                 goto finish;
1424         }
1425
1426         while (!set_isempty(s) &&
1427                dbus_connection_read_write_dispatch(bus, -1))
1428                 ;
1429
1430         if (!arg_quiet && d.result) {
1431                 if (streq(d.result, "timeout"))
1432                         log_error("Job timed out.");
1433                 else if (streq(d.result, "canceled"))
1434                         log_error("Job canceled.");
1435                 else if (streq(d.result, "dependency"))
1436                         log_error("A dependency job failed. See system logs for details.");
1437                 else if (!streq(d.result, "done") && !streq(d.result, "skipped"))
1438                         log_error("Job failed. See system logs and 'systemctl status' for details.");
1439         }
1440
1441         if (streq_ptr(d.result, "timeout"))
1442                 r = -ETIME;
1443         else if (streq_ptr(d.result, "canceled"))
1444                 r = -ECANCELED;
1445         else if (!streq_ptr(d.result, "done") && !streq_ptr(d.result, "skipped"))
1446                 r = -EIO;
1447         else
1448                 r = 0;
1449
1450         free(d.result);
1451
1452 finish:
1453         /* This is slightly dirty, since we don't undo the filter registration. */
1454
1455         return r;
1456 }
1457
1458 static int start_unit_one(
1459                 DBusConnection *bus,
1460                 const char *method,
1461                 const char *name,
1462                 const char *mode,
1463                 DBusError *error,
1464                 Set *s) {
1465
1466         DBusMessage *m = NULL, *reply = NULL;
1467         const char *path;
1468         int r;
1469
1470         assert(bus);
1471         assert(method);
1472         assert(name);
1473         assert(mode);
1474         assert(error);
1475         assert(arg_no_block || s);
1476
1477         if (!(m = dbus_message_new_method_call(
1478                               "org.freedesktop.systemd1",
1479                               "/org/freedesktop/systemd1",
1480                               "org.freedesktop.systemd1.Manager",
1481                               method))) {
1482                 log_error("Could not allocate message.");
1483                 r = -ENOMEM;
1484                 goto finish;
1485         }
1486
1487         if (!dbus_message_append_args(m,
1488                                       DBUS_TYPE_STRING, &name,
1489                                       DBUS_TYPE_STRING, &mode,
1490                                       DBUS_TYPE_INVALID)) {
1491                 log_error("Could not append arguments to message.");
1492                 r = -ENOMEM;
1493                 goto finish;
1494         }
1495
1496         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, error))) {
1497
1498                 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(error)) {
1499                         /* There's always a fallback possible for
1500                          * legacy actions. */
1501                         r = -EADDRNOTAVAIL;
1502                         goto finish;
1503                 }
1504
1505                 log_error("Failed to issue method call: %s", bus_error_message(error));
1506                 r = -EIO;
1507                 goto finish;
1508         }
1509
1510         if (!dbus_message_get_args(reply, error,
1511                                    DBUS_TYPE_OBJECT_PATH, &path,
1512                                    DBUS_TYPE_INVALID)) {
1513                 log_error("Failed to parse reply: %s", bus_error_message(error));
1514                 r = -EIO;
1515                 goto finish;
1516         }
1517
1518         if (need_daemon_reload(bus, name))
1519                 log_warning("Warning: Unit file of created job changed on disk, 'systemctl %s daemon-reload' recommended.",
1520                             arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
1521
1522         if (!arg_no_block) {
1523                 char *p;
1524
1525                 if (!(p = strdup(path))) {
1526                         log_error("Failed to duplicate path.");
1527                         r = -ENOMEM;
1528                         goto finish;
1529                 }
1530
1531                 if ((r = set_put(s, p)) < 0) {
1532                         free(p);
1533                         log_error("Failed to add path to set.");
1534                         goto finish;
1535                 }
1536         }
1537
1538         r = 0;
1539
1540 finish:
1541         if (m)
1542                 dbus_message_unref(m);
1543
1544         if (reply)
1545                 dbus_message_unref(reply);
1546
1547         return r;
1548 }
1549
1550 static enum action verb_to_action(const char *verb) {
1551         if (streq(verb, "halt"))
1552                 return ACTION_HALT;
1553         else if (streq(verb, "poweroff"))
1554                 return ACTION_POWEROFF;
1555         else if (streq(verb, "reboot"))
1556                 return ACTION_REBOOT;
1557         else if (streq(verb, "kexec"))
1558                 return ACTION_KEXEC;
1559         else if (streq(verb, "rescue"))
1560                 return ACTION_RESCUE;
1561         else if (streq(verb, "emergency"))
1562                 return ACTION_EMERGENCY;
1563         else if (streq(verb, "default"))
1564                 return ACTION_DEFAULT;
1565         else if (streq(verb, "exit"))
1566                 return ACTION_EXIT;
1567         else
1568                 return ACTION_INVALID;
1569 }
1570
1571 static int start_unit(DBusConnection *bus, char **args) {
1572
1573         static const char * const table[_ACTION_MAX] = {
1574                 [ACTION_HALT] = SPECIAL_HALT_TARGET,
1575                 [ACTION_POWEROFF] = SPECIAL_POWEROFF_TARGET,
1576                 [ACTION_REBOOT] = SPECIAL_REBOOT_TARGET,
1577                 [ACTION_KEXEC] = SPECIAL_KEXEC_TARGET,
1578                 [ACTION_RUNLEVEL2] = SPECIAL_RUNLEVEL2_TARGET,
1579                 [ACTION_RUNLEVEL3] = SPECIAL_RUNLEVEL3_TARGET,
1580                 [ACTION_RUNLEVEL4] = SPECIAL_RUNLEVEL4_TARGET,
1581                 [ACTION_RUNLEVEL5] = SPECIAL_RUNLEVEL5_TARGET,
1582                 [ACTION_RESCUE] = SPECIAL_RESCUE_TARGET,
1583                 [ACTION_EMERGENCY] = SPECIAL_EMERGENCY_TARGET,
1584                 [ACTION_DEFAULT] = SPECIAL_DEFAULT_TARGET,
1585                 [ACTION_EXIT] = SPECIAL_EXIT_TARGET
1586         };
1587
1588         int r, ret = 0;
1589         const char *method, *mode, *one_name;
1590         Set *s = NULL;
1591         DBusError error;
1592         char **name;
1593
1594         dbus_error_init(&error);
1595
1596         assert(bus);
1597
1598         agent_open_if_enabled();
1599
1600         if (arg_action == ACTION_SYSTEMCTL) {
1601                 method =
1602                         streq(args[0], "stop") ||
1603                         streq(args[0], "condstop")              ? "StopUnit" :
1604                         streq(args[0], "reload")                ? "ReloadUnit" :
1605                         streq(args[0], "restart")               ? "RestartUnit" :
1606
1607                         streq(args[0], "try-restart")           ||
1608                         streq(args[0], "condrestart")           ? "TryRestartUnit" :
1609
1610                         streq(args[0], "reload-or-restart")     ? "ReloadOrRestartUnit" :
1611
1612                         streq(args[0], "reload-or-try-restart") ||
1613                         streq(args[0], "condreload") ||
1614
1615                         streq(args[0], "force-reload")          ? "ReloadOrTryRestartUnit" :
1616                                                                   "StartUnit";
1617
1618                 mode =
1619                         (streq(args[0], "isolate") ||
1620                          streq(args[0], "rescue")  ||
1621                          streq(args[0], "emergency")) ? "isolate" : arg_job_mode;
1622
1623                 one_name = table[verb_to_action(args[0])];
1624
1625         } else {
1626                 assert(arg_action < ELEMENTSOF(table));
1627                 assert(table[arg_action]);
1628
1629                 method = "StartUnit";
1630
1631                 mode = (arg_action == ACTION_EMERGENCY ||
1632                         arg_action == ACTION_RESCUE ||
1633                         arg_action == ACTION_RUNLEVEL2 ||
1634                         arg_action == ACTION_RUNLEVEL3 ||
1635                         arg_action == ACTION_RUNLEVEL4 ||
1636                         arg_action == ACTION_RUNLEVEL5) ? "isolate" : "replace";
1637
1638                 one_name = table[arg_action];
1639         }
1640
1641         if (!arg_no_block) {
1642                 if ((ret = enable_wait_for_jobs(bus)) < 0) {
1643                         log_error("Could not watch jobs: %s", strerror(-ret));
1644                         goto finish;
1645                 }
1646
1647                 if (!(s = set_new(string_hash_func, string_compare_func))) {
1648                         log_error("Failed to allocate set.");
1649                         ret = -ENOMEM;
1650                         goto finish;
1651                 }
1652         }
1653
1654         if (one_name) {
1655                 if ((ret = start_unit_one(bus, method, one_name, mode, &error, s)) <= 0)
1656                         goto finish;
1657         } else {
1658                 STRV_FOREACH(name, args+1)
1659                         if ((r = start_unit_one(bus, method, *name, mode, &error, s)) != 0) {
1660                                 ret = translate_bus_error_to_exit_status(r, &error);
1661                                 dbus_error_free(&error);
1662                         }
1663         }
1664
1665         if (!arg_no_block)
1666                 if ((r = wait_for_jobs(bus, s)) < 0) {
1667                         ret = r;
1668                         goto finish;
1669                 }
1670
1671 finish:
1672         if (s)
1673                 set_free_free(s);
1674
1675         dbus_error_free(&error);
1676
1677         return ret;
1678 }
1679
1680 static int start_special(DBusConnection *bus, char **args) {
1681         int r;
1682
1683         assert(bus);
1684         assert(args);
1685
1686         if (arg_force &&
1687             (streq(args[0], "halt") ||
1688              streq(args[0], "poweroff") ||
1689              streq(args[0], "reboot") ||
1690              streq(args[0], "kexec") ||
1691              streq(args[0], "exit")))
1692                 return daemon_reload(bus, args);
1693
1694         r = start_unit(bus, args);
1695
1696         if (r >= 0)
1697                 warn_wall(verb_to_action(args[0]));
1698
1699         return r;
1700 }
1701
1702 static int check_unit(DBusConnection *bus, char **args) {
1703         DBusMessage *m = NULL, *reply = NULL;
1704         const char
1705                 *interface = "org.freedesktop.systemd1.Unit",
1706                 *property = "ActiveState";
1707         int r = 3; /* According to LSB: "program is not running" */
1708         DBusError error;
1709         char **name;
1710
1711         assert(bus);
1712         assert(args);
1713
1714         dbus_error_init(&error);
1715
1716         STRV_FOREACH(name, args+1) {
1717                 const char *path = NULL;
1718                 const char *state;
1719                 DBusMessageIter iter, sub;
1720
1721                 if (!(m = dbus_message_new_method_call(
1722                                       "org.freedesktop.systemd1",
1723                                       "/org/freedesktop/systemd1",
1724                                       "org.freedesktop.systemd1.Manager",
1725                                       "GetUnit"))) {
1726                         log_error("Could not allocate message.");
1727                         r = -ENOMEM;
1728                         goto finish;
1729                 }
1730
1731                 if (!dbus_message_append_args(m,
1732                                               DBUS_TYPE_STRING, name,
1733                                               DBUS_TYPE_INVALID)) {
1734                         log_error("Could not append arguments to message.");
1735                         r = -ENOMEM;
1736                         goto finish;
1737                 }
1738
1739                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1740
1741                         /* Hmm, cannot figure out anything about this unit... */
1742                         if (!arg_quiet)
1743                                 puts("unknown");
1744
1745                         dbus_error_free(&error);
1746                         dbus_message_unref(m);
1747                         m = NULL;
1748                         continue;
1749                 }
1750
1751                 if (!dbus_message_get_args(reply, &error,
1752                                            DBUS_TYPE_OBJECT_PATH, &path,
1753                                            DBUS_TYPE_INVALID)) {
1754                         log_error("Failed to parse reply: %s", bus_error_message(&error));
1755                         r = -EIO;
1756                         goto finish;
1757                 }
1758
1759                 dbus_message_unref(m);
1760                 if (!(m = dbus_message_new_method_call(
1761                                       "org.freedesktop.systemd1",
1762                                       path,
1763                                       "org.freedesktop.DBus.Properties",
1764                                       "Get"))) {
1765                         log_error("Could not allocate message.");
1766                         r = -ENOMEM;
1767                         goto finish;
1768                 }
1769
1770                 if (!dbus_message_append_args(m,
1771                                               DBUS_TYPE_STRING, &interface,
1772                                               DBUS_TYPE_STRING, &property,
1773                                               DBUS_TYPE_INVALID)) {
1774                         log_error("Could not append arguments to message.");
1775                         r = -ENOMEM;
1776                         goto finish;
1777                 }
1778
1779                 dbus_message_unref(reply);
1780                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1781                         log_error("Failed to issue method call: %s", bus_error_message(&error));
1782                         r = -EIO;
1783                         goto finish;
1784                 }
1785
1786                 if (!dbus_message_iter_init(reply, &iter) ||
1787                     dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)  {
1788                         log_error("Failed to parse reply.");
1789                         r = -EIO;
1790                         goto finish;
1791                 }
1792
1793                 dbus_message_iter_recurse(&iter, &sub);
1794
1795                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING)  {
1796                         log_error("Failed to parse reply.");
1797                         r = -EIO;
1798                         goto finish;
1799                 }
1800
1801                 dbus_message_iter_get_basic(&sub, &state);
1802
1803                 if (!arg_quiet)
1804                         puts(state);
1805
1806                 if (streq(state, "active") || streq(state, "reloading"))
1807                         r = 0;
1808
1809                 dbus_message_unref(m);
1810                 dbus_message_unref(reply);
1811                 m = reply = NULL;
1812         }
1813
1814 finish:
1815         if (m)
1816                 dbus_message_unref(m);
1817
1818         if (reply)
1819                 dbus_message_unref(reply);
1820
1821         dbus_error_free(&error);
1822
1823         return r;
1824 }
1825
1826 static int kill_unit(DBusConnection *bus, char **args) {
1827         DBusMessage *m = NULL;
1828         int r = 0;
1829         DBusError error;
1830         char **name;
1831
1832         assert(bus);
1833         assert(args);
1834
1835         dbus_error_init(&error);
1836
1837         if (!arg_kill_who)
1838                 arg_kill_who = "all";
1839
1840         if (!arg_kill_mode)
1841                 arg_kill_mode = streq(arg_kill_who, "all") ? "control-group" : "process";
1842
1843         STRV_FOREACH(name, args+1) {
1844                 DBusMessage *reply;
1845
1846                 if (!(m = dbus_message_new_method_call(
1847                                       "org.freedesktop.systemd1",
1848                                       "/org/freedesktop/systemd1",
1849                                       "org.freedesktop.systemd1.Manager",
1850                                       "KillUnit"))) {
1851                         log_error("Could not allocate message.");
1852                         r = -ENOMEM;
1853                         goto finish;
1854                 }
1855
1856                 if (!dbus_message_append_args(m,
1857                                               DBUS_TYPE_STRING, name,
1858                                               DBUS_TYPE_STRING, &arg_kill_who,
1859                                               DBUS_TYPE_STRING, &arg_kill_mode,
1860                                               DBUS_TYPE_INT32, &arg_signal,
1861                                               DBUS_TYPE_INVALID)) {
1862                         log_error("Could not append arguments to message.");
1863                         r = -ENOMEM;
1864                         goto finish;
1865                 }
1866
1867                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
1868                         log_error("Failed to issue method call: %s", bus_error_message(&error));
1869                         dbus_error_free(&error);
1870                         r = -EIO;
1871                 }
1872
1873                 dbus_message_unref(m);
1874
1875                 if (reply)
1876                         dbus_message_unref(reply);
1877                 m = reply = NULL;
1878         }
1879
1880 finish:
1881         if (m)
1882                 dbus_message_unref(m);
1883
1884         dbus_error_free(&error);
1885
1886         return r;
1887 }
1888
1889 typedef struct ExecStatusInfo {
1890         char *name;
1891
1892         char *path;
1893         char **argv;
1894
1895         bool ignore;
1896
1897         usec_t start_timestamp;
1898         usec_t exit_timestamp;
1899         pid_t pid;
1900         int code;
1901         int status;
1902
1903         LIST_FIELDS(struct ExecStatusInfo, exec);
1904 } ExecStatusInfo;
1905
1906 static void exec_status_info_free(ExecStatusInfo *i) {
1907         assert(i);
1908
1909         free(i->name);
1910         free(i->path);
1911         strv_free(i->argv);
1912         free(i);
1913 }
1914
1915 static int exec_status_info_deserialize(DBusMessageIter *sub, ExecStatusInfo *i) {
1916         uint64_t start_timestamp, exit_timestamp, start_timestamp_monotonic, exit_timestamp_monotonic;
1917         DBusMessageIter sub2, sub3;
1918         const char*path;
1919         unsigned n;
1920         uint32_t pid;
1921         int32_t code, status;
1922         dbus_bool_t ignore;
1923
1924         assert(i);
1925         assert(i);
1926
1927         if (dbus_message_iter_get_arg_type(sub) != DBUS_TYPE_STRUCT)
1928                 return -EIO;
1929
1930         dbus_message_iter_recurse(sub, &sub2);
1931
1932         if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) < 0)
1933                 return -EIO;
1934
1935         if (!(i->path = strdup(path)))
1936                 return -ENOMEM;
1937
1938         if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_ARRAY ||
1939             dbus_message_iter_get_element_type(&sub2) != DBUS_TYPE_STRING)
1940                 return -EIO;
1941
1942         n = 0;
1943         dbus_message_iter_recurse(&sub2, &sub3);
1944         while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1945                 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1946                 dbus_message_iter_next(&sub3);
1947                 n++;
1948         }
1949
1950
1951         if (!(i->argv = new0(char*, n+1)))
1952                 return -ENOMEM;
1953
1954         n = 0;
1955         dbus_message_iter_recurse(&sub2, &sub3);
1956         while (dbus_message_iter_get_arg_type(&sub3) != DBUS_TYPE_INVALID) {
1957                 const char *s;
1958
1959                 assert(dbus_message_iter_get_arg_type(&sub3) == DBUS_TYPE_STRING);
1960                 dbus_message_iter_get_basic(&sub3, &s);
1961                 dbus_message_iter_next(&sub3);
1962
1963                 if (!(i->argv[n++] = strdup(s)))
1964                         return -ENOMEM;
1965         }
1966
1967         if (!dbus_message_iter_next(&sub2) ||
1968             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, true) < 0 ||
1969             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp, true) < 0 ||
1970             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &start_timestamp_monotonic, true) < 0 ||
1971             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp, true) < 0 ||
1972             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &exit_timestamp_monotonic, true) < 0 ||
1973             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT32, &pid, true) < 0 ||
1974             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &code, true) < 0 ||
1975             bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_INT32, &status, false) < 0)
1976                 return -EIO;
1977
1978         i->ignore = ignore;
1979         i->start_timestamp = (usec_t) start_timestamp;
1980         i->exit_timestamp = (usec_t) exit_timestamp;
1981         i->pid = (pid_t) pid;
1982         i->code = code;
1983         i->status = status;
1984
1985         return 0;
1986 }
1987
1988 typedef struct UnitStatusInfo {
1989         const char *id;
1990         const char *load_state;
1991         const char *active_state;
1992         const char *sub_state;
1993         const char *unit_file_state;
1994
1995         const char *description;
1996         const char *following;
1997
1998         const char *path;
1999         const char *default_control_group;
2000
2001         const char *load_error;
2002
2003         usec_t inactive_exit_timestamp;
2004         usec_t active_enter_timestamp;
2005         usec_t active_exit_timestamp;
2006         usec_t inactive_enter_timestamp;
2007
2008         bool need_daemon_reload;
2009
2010         /* Service */
2011         pid_t main_pid;
2012         pid_t control_pid;
2013         const char *status_text;
2014         bool running:1;
2015 #ifdef HAVE_SYSV_COMPAT
2016         bool is_sysv:1;
2017 #endif
2018
2019         usec_t start_timestamp;
2020         usec_t exit_timestamp;
2021
2022         int exit_code, exit_status;
2023
2024         usec_t condition_timestamp;
2025         bool condition_result;
2026
2027         /* Socket */
2028         unsigned n_accepted;
2029         unsigned n_connections;
2030         bool accept;
2031
2032         /* Device */
2033         const char *sysfs_path;
2034
2035         /* Mount, Automount */
2036         const char *where;
2037
2038         /* Swap */
2039         const char *what;
2040
2041         LIST_HEAD(ExecStatusInfo, exec);
2042 } UnitStatusInfo;
2043
2044 static void print_status_info(UnitStatusInfo *i) {
2045         ExecStatusInfo *p;
2046         const char *on, *off, *ss;
2047         usec_t timestamp;
2048         char since1[FORMAT_TIMESTAMP_PRETTY_MAX], *s1;
2049         char since2[FORMAT_TIMESTAMP_MAX], *s2;
2050
2051         assert(i);
2052
2053         /* This shows pretty information about a unit. See
2054          * print_property() for a low-level property printer */
2055
2056         printf("%s", strna(i->id));
2057
2058         if (i->description && !streq_ptr(i->id, i->description))
2059                 printf(" - %s", i->description);
2060
2061         printf("\n");
2062
2063         if (i->following)
2064                 printf("\t  Follow: unit currently follows state of %s\n", i->following);
2065
2066         if (streq_ptr(i->load_state, "failed") ||
2067             streq_ptr(i->load_state, "banned")) {
2068                 on = ansi_highlight(true);
2069                 off = ansi_highlight(false);
2070         } else
2071                 on = off = "";
2072
2073         if (i->load_error)
2074                 printf("\t  Loaded: %s%s%s (Reason: %s)\n", on, strna(i->load_state), off, i->load_error);
2075         else if (i->path && i->unit_file_state)
2076                 printf("\t  Loaded: %s%s%s (%s; %s)\n", on, strna(i->load_state), off, i->path, i->unit_file_state);
2077         else if (i->path)
2078                 printf("\t  Loaded: %s%s%s (%s)\n", on, strna(i->load_state), off, i->path);
2079         else
2080                 printf("\t  Loaded: %s%s%s\n", on, strna(i->load_state), off);
2081
2082         ss = streq_ptr(i->active_state, i->sub_state) ? NULL : i->sub_state;
2083
2084         if (streq_ptr(i->active_state, "failed")) {
2085                 on = ansi_highlight(true);
2086                 off = ansi_highlight(false);
2087         } else if (streq_ptr(i->active_state, "active") || streq_ptr(i->active_state, "reloading")) {
2088                 on = ansi_highlight_green(true);
2089                 off = ansi_highlight_green(false);
2090         } else
2091                 on = off = "";
2092
2093         if (ss)
2094                 printf("\t  Active: %s%s (%s)%s",
2095                        on,
2096                        strna(i->active_state),
2097                        ss,
2098                        off);
2099         else
2100                 printf("\t  Active: %s%s%s",
2101                        on,
2102                        strna(i->active_state),
2103                        off);
2104
2105         timestamp = (streq_ptr(i->active_state, "active")      ||
2106                      streq_ptr(i->active_state, "reloading"))   ? i->active_enter_timestamp :
2107                     (streq_ptr(i->active_state, "inactive")    ||
2108                      streq_ptr(i->active_state, "failed"))      ? i->inactive_enter_timestamp :
2109                     streq_ptr(i->active_state, "activating")    ? i->inactive_exit_timestamp :
2110                                                                   i->active_exit_timestamp;
2111
2112         s1 = format_timestamp_pretty(since1, sizeof(since1), timestamp);
2113         s2 = format_timestamp(since2, sizeof(since2), timestamp);
2114
2115         if (s1)
2116                 printf(" since %s; %s\n", s2, s1);
2117         else if (s2)
2118                 printf(" since %s\n", s2);
2119         else
2120                 printf("\n");
2121
2122         if (!i->condition_result && i->condition_timestamp > 0) {
2123                 s1 = format_timestamp_pretty(since1, sizeof(since1), i->condition_timestamp);
2124                 s2 = format_timestamp(since2, sizeof(since2), i->condition_timestamp);
2125
2126                 if (s1)
2127                         printf("\t          start condition failed at %s; %s\n", s2, s1);
2128                 else if (s2)
2129                         printf("\t          start condition failed at %s\n", s2);
2130         }
2131
2132         if (i->sysfs_path)
2133                 printf("\t  Device: %s\n", i->sysfs_path);
2134         if (i->where)
2135                 printf("\t   Where: %s\n", i->where);
2136         if (i->what)
2137                 printf("\t    What: %s\n", i->what);
2138
2139         if (i->accept)
2140                 printf("\tAccepted: %u; Connected: %u\n", i->n_accepted, i->n_connections);
2141
2142         LIST_FOREACH(exec, p, i->exec) {
2143                 char *t;
2144                 bool good;
2145
2146                 /* Only show exited processes here */
2147                 if (p->code == 0)
2148                         continue;
2149
2150                 t = strv_join(p->argv, " ");
2151                 printf("\t Process: %u %s=%s ", p->pid, p->name, strna(t));
2152                 free(t);
2153
2154 #ifdef HAVE_SYSV_COMPAT
2155                 if (i->is_sysv)
2156                         good = is_clean_exit_lsb(p->code, p->status);
2157                 else
2158 #endif
2159                         good = is_clean_exit(p->code, p->status);
2160
2161                 if (!good) {
2162                         on = ansi_highlight(true);
2163                         off = ansi_highlight(false);
2164                 } else
2165                         on = off = "";
2166
2167                 printf("%s(code=%s, ", on, sigchld_code_to_string(p->code));
2168
2169                 if (p->code == CLD_EXITED) {
2170                         const char *c;
2171
2172                         printf("status=%i", p->status);
2173
2174 #ifdef HAVE_SYSV_COMPAT
2175                         if ((c = exit_status_to_string(p->status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2176 #else
2177                         if ((c = exit_status_to_string(p->status, EXIT_STATUS_SYSTEMD)))
2178 #endif
2179                                 printf("/%s", c);
2180
2181                 } else
2182                         printf("signal=%s", signal_to_string(p->status));
2183
2184                 printf(")%s\n", off);
2185
2186                 if (i->main_pid == p->pid &&
2187                     i->start_timestamp == p->start_timestamp &&
2188                     i->exit_timestamp == p->start_timestamp)
2189                         /* Let's not show this twice */
2190                         i->main_pid = 0;
2191
2192                 if (p->pid == i->control_pid)
2193                         i->control_pid = 0;
2194         }
2195
2196         if (i->main_pid > 0 || i->control_pid > 0) {
2197                 printf("\t");
2198
2199                 if (i->main_pid > 0) {
2200                         printf("Main PID: %u", (unsigned) i->main_pid);
2201
2202                         if (i->running) {
2203                                 char *t = NULL;
2204                                 get_process_name(i->main_pid, &t);
2205                                 if (t) {
2206                                         printf(" (%s)", t);
2207                                         free(t);
2208                                 }
2209                         } else if (i->exit_code > 0) {
2210                                 printf(" (code=%s, ", sigchld_code_to_string(i->exit_code));
2211
2212                                 if (i->exit_code == CLD_EXITED) {
2213                                         const char *c;
2214
2215                                         printf("status=%i", i->exit_status);
2216
2217 #ifdef HAVE_SYSV_COMPAT
2218                                         if ((c = exit_status_to_string(i->exit_status, i->is_sysv ? EXIT_STATUS_LSB : EXIT_STATUS_SYSTEMD)))
2219 #else
2220                                         if ((c = exit_status_to_string(i->exit_status, EXIT_STATUS_SYSTEMD)))
2221 #endif
2222                                                 printf("/%s", c);
2223
2224                                 } else
2225                                         printf("signal=%s", signal_to_string(i->exit_status));
2226                                 printf(")");
2227                         }
2228                 }
2229
2230                 if (i->main_pid > 0 && i->control_pid > 0)
2231                         printf(";");
2232
2233                 if (i->control_pid > 0) {
2234                         char *t = NULL;
2235
2236                         printf(" Control: %u", (unsigned) i->control_pid);
2237
2238                         get_process_name(i->control_pid, &t);
2239                         if (t) {
2240                                 printf(" (%s)", t);
2241                                 free(t);
2242                         }
2243                 }
2244
2245                 printf("\n");
2246         }
2247
2248         if (i->status_text)
2249                 printf("\t  Status: \"%s\"\n", i->status_text);
2250
2251         if (i->default_control_group) {
2252                 unsigned c;
2253
2254                 printf("\t  CGroup: %s\n", i->default_control_group);
2255
2256                 if (arg_transport != TRANSPORT_SSH) {
2257                         if ((c = columns()) > 18)
2258                                 c -= 18;
2259                         else
2260                                 c = 0;
2261
2262                         show_cgroup_by_path(i->default_control_group, "\t\t  ", c);
2263                 }
2264         }
2265
2266         if (i->need_daemon_reload)
2267                 printf("\n%sWarning:%s Unit file changed on disk, 'systemctl %s daemon-reload' recommended.\n",
2268                        ansi_highlight(true),
2269                        ansi_highlight(false),
2270                        arg_scope == UNIT_FILE_SYSTEM ? "--system" : "--user");
2271 }
2272
2273 static int status_property(const char *name, DBusMessageIter *iter, UnitStatusInfo *i) {
2274
2275         assert(name);
2276         assert(iter);
2277         assert(i);
2278
2279         switch (dbus_message_iter_get_arg_type(iter)) {
2280
2281         case DBUS_TYPE_STRING: {
2282                 const char *s;
2283
2284                 dbus_message_iter_get_basic(iter, &s);
2285
2286                 if (!isempty(s)) {
2287                         if (streq(name, "Id"))
2288                                 i->id = s;
2289                         else if (streq(name, "LoadState"))
2290                                 i->load_state = s;
2291                         else if (streq(name, "ActiveState"))
2292                                 i->active_state = s;
2293                         else if (streq(name, "SubState"))
2294                                 i->sub_state = s;
2295                         else if (streq(name, "Description"))
2296                                 i->description = s;
2297                         else if (streq(name, "FragmentPath"))
2298                                 i->path = s;
2299 #ifdef HAVE_SYSV_COMPAT
2300                         else if (streq(name, "SysVPath")) {
2301                                 i->is_sysv = true;
2302                                 i->path = s;
2303                         }
2304 #endif
2305                         else if (streq(name, "DefaultControlGroup"))
2306                                 i->default_control_group = s;
2307                         else if (streq(name, "StatusText"))
2308                                 i->status_text = s;
2309                         else if (streq(name, "SysFSPath"))
2310                                 i->sysfs_path = s;
2311                         else if (streq(name, "Where"))
2312                                 i->where = s;
2313                         else if (streq(name, "What"))
2314                                 i->what = s;
2315                         else if (streq(name, "Following"))
2316                                 i->following = s;
2317                         else if (streq(name, "UnitFileState"))
2318                                 i->unit_file_state = s;
2319                 }
2320
2321                 break;
2322         }
2323
2324         case DBUS_TYPE_BOOLEAN: {
2325                 dbus_bool_t b;
2326
2327                 dbus_message_iter_get_basic(iter, &b);
2328
2329                 if (streq(name, "Accept"))
2330                         i->accept = b;
2331                 else if (streq(name, "NeedDaemonReload"))
2332                         i->need_daemon_reload = b;
2333                 else if (streq(name, "ConditionResult"))
2334                         i->condition_result = b;
2335
2336                 break;
2337         }
2338
2339         case DBUS_TYPE_UINT32: {
2340                 uint32_t u;
2341
2342                 dbus_message_iter_get_basic(iter, &u);
2343
2344                 if (streq(name, "MainPID")) {
2345                         if (u > 0) {
2346                                 i->main_pid = (pid_t) u;
2347                                 i->running = true;
2348                         }
2349                 } else if (streq(name, "ControlPID"))
2350                         i->control_pid = (pid_t) u;
2351                 else if (streq(name, "ExecMainPID")) {
2352                         if (u > 0)
2353                                 i->main_pid = (pid_t) u;
2354                 } else if (streq(name, "NAccepted"))
2355                         i->n_accepted = u;
2356                 else if (streq(name, "NConnections"))
2357                         i->n_connections = u;
2358
2359                 break;
2360         }
2361
2362         case DBUS_TYPE_INT32: {
2363                 int32_t j;
2364
2365                 dbus_message_iter_get_basic(iter, &j);
2366
2367                 if (streq(name, "ExecMainCode"))
2368                         i->exit_code = (int) j;
2369                 else if (streq(name, "ExecMainStatus"))
2370                         i->exit_status = (int) j;
2371
2372                 break;
2373         }
2374
2375         case DBUS_TYPE_UINT64: {
2376                 uint64_t u;
2377
2378                 dbus_message_iter_get_basic(iter, &u);
2379
2380                 if (streq(name, "ExecMainStartTimestamp"))
2381                         i->start_timestamp = (usec_t) u;
2382                 else if (streq(name, "ExecMainExitTimestamp"))
2383                         i->exit_timestamp = (usec_t) u;
2384                 else if (streq(name, "ActiveEnterTimestamp"))
2385                         i->active_enter_timestamp = (usec_t) u;
2386                 else if (streq(name, "InactiveEnterTimestamp"))
2387                         i->inactive_enter_timestamp = (usec_t) u;
2388                 else if (streq(name, "InactiveExitTimestamp"))
2389                         i->inactive_exit_timestamp = (usec_t) u;
2390                 else if (streq(name, "ActiveExitTimestamp"))
2391                         i->active_exit_timestamp = (usec_t) u;
2392                 else if (streq(name, "ConditionTimestamp"))
2393                         i->condition_timestamp = (usec_t) u;
2394
2395                 break;
2396         }
2397
2398         case DBUS_TYPE_ARRAY: {
2399
2400                 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT &&
2401                     startswith(name, "Exec")) {
2402                         DBusMessageIter sub;
2403
2404                         dbus_message_iter_recurse(iter, &sub);
2405                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2406                                 ExecStatusInfo *info;
2407                                 int r;
2408
2409                                 if (!(info = new0(ExecStatusInfo, 1)))
2410                                         return -ENOMEM;
2411
2412                                 if (!(info->name = strdup(name))) {
2413                                         free(info);
2414                                         return -ENOMEM;
2415                                 }
2416
2417                                 if ((r = exec_status_info_deserialize(&sub, info)) < 0) {
2418                                         free(info);
2419                                         return r;
2420                                 }
2421
2422                                 LIST_PREPEND(ExecStatusInfo, exec, i->exec, info);
2423
2424                                 dbus_message_iter_next(&sub);
2425                         }
2426                 }
2427
2428                 break;
2429         }
2430
2431         case DBUS_TYPE_STRUCT: {
2432
2433                 if (streq(name, "LoadError")) {
2434                         DBusMessageIter sub;
2435                         const char *n, *message;
2436                         int r;
2437
2438                         dbus_message_iter_recurse(iter, &sub);
2439
2440                         r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &n, true);
2441                         if (r < 0)
2442                                 return r;
2443
2444                         r = bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &message, false);
2445                         if (r < 0)
2446                                 return r;
2447
2448                         if (!isempty(message))
2449                                 i->load_error = message;
2450                 }
2451
2452                 break;
2453         }
2454         }
2455
2456         return 0;
2457 }
2458
2459 static int print_property(const char *name, DBusMessageIter *iter) {
2460         assert(name);
2461         assert(iter);
2462
2463         /* This is a low-level property printer, see
2464          * print_status_info() for the nicer output */
2465
2466         if (arg_property && !strv_find(arg_property, name))
2467                 return 0;
2468
2469         switch (dbus_message_iter_get_arg_type(iter)) {
2470
2471         case DBUS_TYPE_STRUCT: {
2472                 DBusMessageIter sub;
2473                 dbus_message_iter_recurse(iter, &sub);
2474
2475                 if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_UINT32 && streq(name, "Job")) {
2476                         uint32_t u;
2477
2478                         dbus_message_iter_get_basic(&sub, &u);
2479
2480                         if (u)
2481                                 printf("%s=%u\n", name, (unsigned) u);
2482                         else if (arg_all)
2483                                 printf("%s=\n", name);
2484
2485                         return 0;
2486                 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "Unit")) {
2487                         const char *s;
2488
2489                         dbus_message_iter_get_basic(&sub, &s);
2490
2491                         if (arg_all || s[0])
2492                                 printf("%s=%s\n", name, s);
2493
2494                         return 0;
2495                 } else if (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRING && streq(name, "LoadError")) {
2496                         const char *a = NULL, *b = NULL;
2497
2498                         if (bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &a, true) >= 0)
2499                                 bus_iter_get_basic_and_next(&sub, DBUS_TYPE_STRING, &b, false);
2500
2501                         if (arg_all || !isempty(a) || !isempty(b))
2502                                 printf("%s=%s \"%s\"\n", name, strempty(a), strempty(b));
2503
2504                         return 0;
2505                 }
2506
2507                 break;
2508         }
2509
2510         case DBUS_TYPE_ARRAY:
2511
2512                 if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "EnvironmentFiles")) {
2513                         DBusMessageIter sub, sub2;
2514
2515                         dbus_message_iter_recurse(iter, &sub);
2516                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2517                                 const char *path;
2518                                 dbus_bool_t ignore;
2519
2520                                 dbus_message_iter_recurse(&sub, &sub2);
2521
2522                                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, true) >= 0 &&
2523                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_BOOLEAN, &ignore, false) >= 0)
2524                                         printf("EnvironmentFile=%s (ignore_errors=%s)\n", path, yes_no(ignore));
2525
2526                                 dbus_message_iter_next(&sub);
2527                         }
2528
2529                         return 0;
2530
2531                 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Paths")) {
2532                         DBusMessageIter sub, sub2;
2533
2534                         dbus_message_iter_recurse(iter, &sub);
2535                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2536                                 const char *type, *path;
2537
2538                                 dbus_message_iter_recurse(&sub, &sub2);
2539
2540                                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &type, true) >= 0 &&
2541                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &path, false) >= 0)
2542                                         printf("%s=%s\n", type, path);
2543
2544                                 dbus_message_iter_next(&sub);
2545                         }
2546
2547                         return 0;
2548
2549                 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "Timers")) {
2550                         DBusMessageIter sub, sub2;
2551
2552                         dbus_message_iter_recurse(iter, &sub);
2553                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2554                                 const char *base;
2555                                 uint64_t value, next_elapse;
2556
2557                                 dbus_message_iter_recurse(&sub, &sub2);
2558
2559                                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &base, true) >= 0 &&
2560                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &value, true) >= 0 &&
2561                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_UINT64, &next_elapse, false) >= 0) {
2562                                         char timespan1[FORMAT_TIMESPAN_MAX], timespan2[FORMAT_TIMESPAN_MAX];
2563
2564                                         printf("%s={ value=%s ; next_elapse=%s }\n",
2565                                                base,
2566                                                format_timespan(timespan1, sizeof(timespan1), value),
2567                                                format_timespan(timespan2, sizeof(timespan2), next_elapse));
2568                                 }
2569
2570                                 dbus_message_iter_next(&sub);
2571                         }
2572
2573                         return 0;
2574
2575                 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && streq(name, "ControlGroupAttributes")) {
2576                         DBusMessageIter sub, sub2;
2577
2578                         dbus_message_iter_recurse(iter, &sub);
2579                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2580                                 const char *controller, *attr, *value;
2581
2582                                 dbus_message_iter_recurse(&sub, &sub2);
2583
2584                                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &controller, true) >= 0 &&
2585                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &attr, true) >= 0 &&
2586                                     bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &value, false) >= 0) {
2587
2588                                         printf("ControlGroupAttribute={ controller=%s ; attribute=%s ; value=\"%s\" }\n",
2589                                                controller,
2590                                                attr,
2591                                                value);
2592                                 }
2593
2594                                 dbus_message_iter_next(&sub);
2595                         }
2596
2597                         return 0;
2598
2599                 } else if (dbus_message_iter_get_element_type(iter) == DBUS_TYPE_STRUCT && startswith(name, "Exec")) {
2600                         DBusMessageIter sub;
2601
2602                         dbus_message_iter_recurse(iter, &sub);
2603                         while (dbus_message_iter_get_arg_type(&sub) == DBUS_TYPE_STRUCT) {
2604                                 ExecStatusInfo info;
2605
2606                                 zero(info);
2607                                 if (exec_status_info_deserialize(&sub, &info) >= 0) {
2608                                         char timestamp1[FORMAT_TIMESTAMP_MAX], timestamp2[FORMAT_TIMESTAMP_MAX];
2609                                         char *t;
2610
2611                                         t = strv_join(info.argv, " ");
2612
2613                                         printf("%s={ path=%s ; argv[]=%s ; ignore_errors=%s ; start_time=[%s] ; stop_time=[%s] ; pid=%u ; code=%s ; status=%i%s%s }\n",
2614                                                name,
2615                                                strna(info.path),
2616                                                strna(t),
2617                                                yes_no(info.ignore),
2618                                                strna(format_timestamp(timestamp1, sizeof(timestamp1), info.start_timestamp)),
2619                                                strna(format_timestamp(timestamp2, sizeof(timestamp2), info.exit_timestamp)),
2620                                                (unsigned) info. pid,
2621                                                sigchld_code_to_string(info.code),
2622                                                info.status,
2623                                                info.code == CLD_EXITED ? "" : "/",
2624                                                strempty(info.code == CLD_EXITED ? NULL : signal_to_string(info.status)));
2625
2626                                         free(t);
2627                                 }
2628
2629                                 free(info.path);
2630                                 strv_free(info.argv);
2631
2632                                 dbus_message_iter_next(&sub);
2633                         }
2634
2635                         return 0;
2636                 }
2637
2638                 break;
2639         }
2640
2641         if (generic_print_property(name, iter, arg_all) > 0)
2642                 return 0;
2643
2644         if (arg_all)
2645                 printf("%s=[unprintable]\n", name);
2646
2647         return 0;
2648 }
2649
2650 static int show_one(const char *verb, DBusConnection *bus, const char *path, bool show_properties, bool *new_line) {
2651         DBusMessage *m = NULL, *reply = NULL;
2652         const char *interface = "";
2653         int r;
2654         DBusError error;
2655         DBusMessageIter iter, sub, sub2, sub3;
2656         UnitStatusInfo info;
2657         ExecStatusInfo *p;
2658
2659         assert(bus);
2660         assert(path);
2661         assert(new_line);
2662
2663         zero(info);
2664         dbus_error_init(&error);
2665
2666         if (!(m = dbus_message_new_method_call(
2667                               "org.freedesktop.systemd1",
2668                               path,
2669                               "org.freedesktop.DBus.Properties",
2670                               "GetAll"))) {
2671                 log_error("Could not allocate message.");
2672                 r = -ENOMEM;
2673                 goto finish;
2674         }
2675
2676         if (!dbus_message_append_args(m,
2677                                       DBUS_TYPE_STRING, &interface,
2678                                       DBUS_TYPE_INVALID)) {
2679                 log_error("Could not append arguments to message.");
2680                 r = -ENOMEM;
2681                 goto finish;
2682         }
2683
2684         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2685                 log_error("Failed to issue method call: %s", bus_error_message(&error));
2686                 r = -EIO;
2687                 goto finish;
2688         }
2689
2690         if (!dbus_message_iter_init(reply, &iter) ||
2691             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
2692             dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_DICT_ENTRY)  {
2693                 log_error("Failed to parse reply.");
2694                 r = -EIO;
2695                 goto finish;
2696         }
2697
2698         dbus_message_iter_recurse(&iter, &sub);
2699
2700         if (*new_line)
2701                 printf("\n");
2702
2703         *new_line = true;
2704
2705         while (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_INVALID) {
2706                 const char *name;
2707
2708                 if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_DICT_ENTRY) {
2709                         log_error("Failed to parse reply.");
2710                         r = -EIO;
2711                         goto finish;
2712                 }
2713
2714                 dbus_message_iter_recurse(&sub, &sub2);
2715
2716                 if (bus_iter_get_basic_and_next(&sub2, DBUS_TYPE_STRING, &name, true) < 0) {
2717                         log_error("Failed to parse reply.");
2718                         r = -EIO;
2719                         goto finish;
2720                 }
2721
2722                 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_VARIANT)  {
2723                         log_error("Failed to parse reply.");
2724                         r = -EIO;
2725                         goto finish;
2726                 }
2727
2728                 dbus_message_iter_recurse(&sub2, &sub3);
2729
2730                 if (show_properties)
2731                         r = print_property(name, &sub3);
2732                 else
2733                         r = status_property(name, &sub3, &info);
2734
2735                 if (r < 0) {
2736                         log_error("Failed to parse reply.");
2737                         r = -EIO;
2738                         goto finish;
2739                 }
2740
2741                 dbus_message_iter_next(&sub);
2742         }
2743
2744         r = 0;
2745
2746         if (!show_properties)
2747                 print_status_info(&info);
2748
2749         if (!streq_ptr(info.active_state, "active") &&
2750             !streq_ptr(info.active_state, "reloading") &&
2751             streq(verb, "status"))
2752                 /* According to LSB: "program not running" */
2753                 r = 3;
2754
2755         while ((p = info.exec)) {
2756                 LIST_REMOVE(ExecStatusInfo, exec, info.exec, p);
2757                 exec_status_info_free(p);
2758         }
2759
2760 finish:
2761         if (m)
2762                 dbus_message_unref(m);
2763
2764         if (reply)
2765                 dbus_message_unref(reply);
2766
2767         dbus_error_free(&error);
2768
2769         return r;
2770 }
2771
2772 static int show(DBusConnection *bus, char **args) {
2773         DBusMessage *m = NULL, *reply = NULL;
2774         int r, ret = 0;
2775         DBusError error;
2776         bool show_properties, new_line = false;
2777         char **name;
2778
2779         assert(bus);
2780         assert(args);
2781
2782         dbus_error_init(&error);
2783
2784         show_properties = !streq(args[0], "status");
2785
2786         if (show_properties)
2787                 pager_open_if_enabled();
2788
2789         if (show_properties && strv_length(args) <= 1) {
2790                 /* If not argument is specified inspect the manager
2791                  * itself */
2792
2793                 ret = show_one(args[0], bus, "/org/freedesktop/systemd1", show_properties, &new_line);
2794                 goto finish;
2795         }
2796
2797         STRV_FOREACH(name, args+1) {
2798                 const char *path = NULL;
2799                 uint32_t id;
2800
2801                 if (safe_atou32(*name, &id) < 0) {
2802
2803                         /* Interpret as unit name */
2804
2805                         if (!(m = dbus_message_new_method_call(
2806                                               "org.freedesktop.systemd1",
2807                                               "/org/freedesktop/systemd1",
2808                                               "org.freedesktop.systemd1.Manager",
2809                                               "LoadUnit"))) {
2810                                 log_error("Could not allocate message.");
2811                                 ret = -ENOMEM;
2812                                 goto finish;
2813                         }
2814
2815                         if (!dbus_message_append_args(m,
2816                                                       DBUS_TYPE_STRING, name,
2817                                                       DBUS_TYPE_INVALID)) {
2818                                 log_error("Could not append arguments to message.");
2819                                 ret = -ENOMEM;
2820                                 goto finish;
2821                         }
2822
2823                         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2824
2825                                 if (!dbus_error_has_name(&error, DBUS_ERROR_ACCESS_DENIED)) {
2826                                         log_error("Failed to issue method call: %s", bus_error_message(&error));
2827                                         ret = -EIO;
2828                                         goto finish;
2829                                 }
2830
2831                                 dbus_error_free(&error);
2832
2833                                 dbus_message_unref(m);
2834                                 if (!(m = dbus_message_new_method_call(
2835                                                       "org.freedesktop.systemd1",
2836                                                       "/org/freedesktop/systemd1",
2837                                                       "org.freedesktop.systemd1.Manager",
2838                                                       "GetUnit"))) {
2839                                         log_error("Could not allocate message.");
2840                                         ret = -ENOMEM;
2841                                         goto finish;
2842                                 }
2843
2844                                 if (!dbus_message_append_args(m,
2845                                                               DBUS_TYPE_STRING, name,
2846                                                               DBUS_TYPE_INVALID)) {
2847                                         log_error("Could not append arguments to message.");
2848                                         ret = -ENOMEM;
2849                                         goto finish;
2850                                 }
2851
2852                                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2853                                         log_error("Failed to issue method call: %s", bus_error_message(&error));
2854
2855                                         if (dbus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT))
2856                                                 ret = 4; /* According to LSB: "program or service status is unknown" */
2857                                         else
2858                                                 ret = -EIO;
2859                                         goto finish;
2860                                 }
2861                         }
2862
2863                 } else if (show_properties) {
2864
2865                         /* Interpret as job id */
2866
2867                         if (!(m = dbus_message_new_method_call(
2868                                               "org.freedesktop.systemd1",
2869                                               "/org/freedesktop/systemd1",
2870                                               "org.freedesktop.systemd1.Manager",
2871                                               "GetJob"))) {
2872                                 log_error("Could not allocate message.");
2873                                 ret = -ENOMEM;
2874                                 goto finish;
2875                         }
2876
2877                         if (!dbus_message_append_args(m,
2878                                                       DBUS_TYPE_UINT32, &id,
2879                                                       DBUS_TYPE_INVALID)) {
2880                                 log_error("Could not append arguments to message.");
2881                                 ret = -ENOMEM;
2882                                 goto finish;
2883                         }
2884
2885                         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2886                                 log_error("Failed to issue method call: %s", bus_error_message(&error));
2887                                 ret = -EIO;
2888                                 goto finish;
2889                         }
2890                 } else {
2891
2892                         /* Interpret as PID */
2893
2894                         if (!(m = dbus_message_new_method_call(
2895                                               "org.freedesktop.systemd1",
2896                                               "/org/freedesktop/systemd1",
2897                                               "org.freedesktop.systemd1.Manager",
2898                                               "GetUnitByPID"))) {
2899                                 log_error("Could not allocate message.");
2900                                 ret = -ENOMEM;
2901                                 goto finish;
2902                         }
2903
2904                         if (!dbus_message_append_args(m,
2905                                                       DBUS_TYPE_UINT32, &id,
2906                                                       DBUS_TYPE_INVALID)) {
2907                                 log_error("Could not append arguments to message.");
2908                                 ret = -ENOMEM;
2909                                 goto finish;
2910                         }
2911
2912                         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
2913                                 log_error("Failed to issue method call: %s", bus_error_message(&error));
2914                                 ret = -EIO;
2915                                 goto finish;
2916                         }
2917                 }
2918
2919                 if (!dbus_message_get_args(reply, &error,
2920                                            DBUS_TYPE_OBJECT_PATH, &path,
2921                                            DBUS_TYPE_INVALID)) {
2922                         log_error("Failed to parse reply: %s", bus_error_message(&error));
2923                         ret = -EIO;
2924                         goto finish;
2925                 }
2926
2927                 if ((r = show_one(args[0], bus, path, show_properties, &new_line)) != 0)
2928                         ret = r;
2929
2930                 dbus_message_unref(m);
2931                 dbus_message_unref(reply);
2932                 m = reply = NULL;
2933         }
2934
2935 finish:
2936         if (m)
2937                 dbus_message_unref(m);
2938
2939         if (reply)
2940                 dbus_message_unref(reply);
2941
2942         dbus_error_free(&error);
2943
2944         return ret;
2945 }
2946
2947 static int dump(DBusConnection *bus, char **args) {
2948         DBusMessage *m = NULL, *reply = NULL;
2949         DBusError error;
2950         int r;
2951         const char *text;
2952
2953         dbus_error_init(&error);
2954
2955         pager_open_if_enabled();
2956
2957         if (!(m = dbus_message_new_method_call(
2958                               "org.freedesktop.systemd1",
2959                               "/org/freedesktop/systemd1",
2960                               "org.freedesktop.systemd1.Manager",
2961                               "Dump"))) {
2962                 log_error("Could not allocate message.");
2963                 return -ENOMEM;
2964         }
2965
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_get_args(reply, &error,
2973                                    DBUS_TYPE_STRING, &text,
2974                                    DBUS_TYPE_INVALID)) {
2975                 log_error("Failed to parse reply: %s", bus_error_message(&error));
2976                 r = -EIO;
2977                 goto finish;
2978         }
2979
2980         fputs(text, stdout);
2981
2982         r = 0;
2983
2984 finish:
2985         if (m)
2986                 dbus_message_unref(m);
2987
2988         if (reply)
2989                 dbus_message_unref(reply);
2990
2991         dbus_error_free(&error);
2992
2993         return r;
2994 }
2995
2996 static int snapshot(DBusConnection *bus, char **args) {
2997         DBusMessage *m = NULL, *reply = NULL;
2998         DBusError error;
2999         int r;
3000         const char *name = "", *path, *id;
3001         dbus_bool_t cleanup = FALSE;
3002         DBusMessageIter iter, sub;
3003         const char
3004                 *interface = "org.freedesktop.systemd1.Unit",
3005                 *property = "Id";
3006
3007         dbus_error_init(&error);
3008
3009         if (!(m = dbus_message_new_method_call(
3010                               "org.freedesktop.systemd1",
3011                               "/org/freedesktop/systemd1",
3012                               "org.freedesktop.systemd1.Manager",
3013                               "CreateSnapshot"))) {
3014                 log_error("Could not allocate message.");
3015                 return -ENOMEM;
3016         }
3017
3018         if (strv_length(args) > 1)
3019                 name = args[1];
3020
3021         if (!dbus_message_append_args(m,
3022                                       DBUS_TYPE_STRING, &name,
3023                                       DBUS_TYPE_BOOLEAN, &cleanup,
3024                                       DBUS_TYPE_INVALID)) {
3025                 log_error("Could not append arguments to message.");
3026                 r = -ENOMEM;
3027                 goto finish;
3028         }
3029
3030         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3031                 log_error("Failed to issue method call: %s", bus_error_message(&error));
3032                 r = -EIO;
3033                 goto finish;
3034         }
3035
3036         if (!dbus_message_get_args(reply, &error,
3037                                    DBUS_TYPE_OBJECT_PATH, &path,
3038                                    DBUS_TYPE_INVALID)) {
3039                 log_error("Failed to parse reply: %s", bus_error_message(&error));
3040                 r = -EIO;
3041                 goto finish;
3042         }
3043
3044         dbus_message_unref(m);
3045         if (!(m = dbus_message_new_method_call(
3046                               "org.freedesktop.systemd1",
3047                               path,
3048                               "org.freedesktop.DBus.Properties",
3049                               "Get"))) {
3050                 log_error("Could not allocate message.");
3051                 return -ENOMEM;
3052         }
3053
3054         if (!dbus_message_append_args(m,
3055                                       DBUS_TYPE_STRING, &interface,
3056                                       DBUS_TYPE_STRING, &property,
3057                                       DBUS_TYPE_INVALID)) {
3058                 log_error("Could not append arguments to message.");
3059                 r = -ENOMEM;
3060                 goto finish;
3061         }
3062
3063         dbus_message_unref(reply);
3064         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3065                 log_error("Failed to issue method call: %s", bus_error_message(&error));
3066                 r = -EIO;
3067                 goto finish;
3068         }
3069
3070         if (!dbus_message_iter_init(reply, &iter) ||
3071             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)  {
3072                 log_error("Failed to parse reply.");
3073                 r = -EIO;
3074                 goto finish;
3075         }
3076
3077         dbus_message_iter_recurse(&iter, &sub);
3078
3079         if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_STRING)  {
3080                 log_error("Failed to parse reply.");
3081                 r = -EIO;
3082                 goto finish;
3083         }
3084
3085         dbus_message_iter_get_basic(&sub, &id);
3086
3087         if (!arg_quiet)
3088                 puts(id);
3089         r = 0;
3090
3091 finish:
3092         if (m)
3093                 dbus_message_unref(m);
3094
3095         if (reply)
3096                 dbus_message_unref(reply);
3097
3098         dbus_error_free(&error);
3099
3100         return r;
3101 }
3102
3103 static int delete_snapshot(DBusConnection *bus, char **args) {
3104         DBusMessage *m = NULL, *reply = NULL;
3105         int r;
3106         DBusError error;
3107         char **name;
3108
3109         assert(bus);
3110         assert(args);
3111
3112         dbus_error_init(&error);
3113
3114         STRV_FOREACH(name, args+1) {
3115                 const char *path = NULL;
3116
3117                 if (!(m = dbus_message_new_method_call(
3118                                       "org.freedesktop.systemd1",
3119                                       "/org/freedesktop/systemd1",
3120                                       "org.freedesktop.systemd1.Manager",
3121                                       "GetUnit"))) {
3122                         log_error("Could not allocate message.");
3123                         r = -ENOMEM;
3124                         goto finish;
3125                 }
3126
3127                 if (!dbus_message_append_args(m,
3128                                               DBUS_TYPE_STRING, name,
3129                                               DBUS_TYPE_INVALID)) {
3130                         log_error("Could not append arguments to message.");
3131                         r = -ENOMEM;
3132                         goto finish;
3133                 }
3134
3135                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3136                         log_error("Failed to issue method call: %s", bus_error_message(&error));
3137                         r = -EIO;
3138                         goto finish;
3139                 }
3140
3141                 if (!dbus_message_get_args(reply, &error,
3142                                            DBUS_TYPE_OBJECT_PATH, &path,
3143                                            DBUS_TYPE_INVALID)) {
3144                         log_error("Failed to parse reply: %s", bus_error_message(&error));
3145                         r = -EIO;
3146                         goto finish;
3147                 }
3148
3149                 dbus_message_unref(m);
3150                 if (!(m = dbus_message_new_method_call(
3151                                       "org.freedesktop.systemd1",
3152                                       path,
3153                                       "org.freedesktop.systemd1.Snapshot",
3154                                       "Remove"))) {
3155                         log_error("Could not allocate message.");
3156                         r = -ENOMEM;
3157                         goto finish;
3158                 }
3159
3160                 dbus_message_unref(reply);
3161                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3162                         log_error("Failed to issue method call: %s", bus_error_message(&error));
3163                         r = -EIO;
3164                         goto finish;
3165                 }
3166
3167                 dbus_message_unref(m);
3168                 dbus_message_unref(reply);
3169                 m = reply = NULL;
3170         }
3171
3172         r = 0;
3173
3174 finish:
3175         if (m)
3176                 dbus_message_unref(m);
3177
3178         if (reply)
3179                 dbus_message_unref(reply);
3180
3181         dbus_error_free(&error);
3182
3183         return r;
3184 }
3185
3186 static int daemon_reload(DBusConnection *bus, char **args) {
3187         DBusMessage *m = NULL, *reply = NULL;
3188         DBusError error;
3189         int r;
3190         const char *method;
3191
3192         dbus_error_init(&error);
3193
3194         if (arg_action == ACTION_RELOAD)
3195                 method = "Reload";
3196         else if (arg_action == ACTION_REEXEC)
3197                 method = "Reexecute";
3198         else {
3199                 assert(arg_action == ACTION_SYSTEMCTL);
3200
3201                 method =
3202                         streq(args[0], "clear-jobs")    ||
3203                         streq(args[0], "cancel")        ? "ClearJobs" :
3204                         streq(args[0], "daemon-reexec") ? "Reexecute" :
3205                         streq(args[0], "reset-failed")  ? "ResetFailed" :
3206                         streq(args[0], "halt")          ? "Halt" :
3207                         streq(args[0], "poweroff")      ? "PowerOff" :
3208                         streq(args[0], "reboot")        ? "Reboot" :
3209                         streq(args[0], "kexec")         ? "KExec" :
3210                         streq(args[0], "exit")          ? "Exit" :
3211                                     /* "daemon-reload" */ "Reload";
3212         }
3213
3214         if (!(m = dbus_message_new_method_call(
3215                               "org.freedesktop.systemd1",
3216                               "/org/freedesktop/systemd1",
3217                               "org.freedesktop.systemd1.Manager",
3218                               method))) {
3219                 log_error("Could not allocate message.");
3220                 return -ENOMEM;
3221         }
3222
3223         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3224
3225                 if (arg_action != ACTION_SYSTEMCTL && error_is_no_service(&error)) {
3226                         /* There's always a fallback possible for
3227                          * legacy actions. */
3228                         r = -EADDRNOTAVAIL;
3229                         goto finish;
3230                 }
3231
3232                 if (streq(method, "Reexecute") && dbus_error_has_name(&error, DBUS_ERROR_NO_REPLY)) {
3233                         /* On reexecution, we expect a disconnect, not
3234                          * a reply */
3235                         r = 0;
3236                         goto finish;
3237                 }
3238
3239                 log_error("Failed to issue method call: %s", bus_error_message(&error));
3240                 r = -EIO;
3241                 goto finish;
3242         }
3243
3244         r = 0;
3245
3246 finish:
3247         if (m)
3248                 dbus_message_unref(m);
3249
3250         if (reply)
3251                 dbus_message_unref(reply);
3252
3253         dbus_error_free(&error);
3254
3255         return r;
3256 }
3257
3258 static int reset_failed(DBusConnection *bus, char **args) {
3259         DBusMessage *m = NULL;
3260         int r;
3261         DBusError error;
3262         char **name;
3263
3264         assert(bus);
3265         dbus_error_init(&error);
3266
3267         if (strv_length(args) <= 1)
3268                 return daemon_reload(bus, args);
3269
3270         STRV_FOREACH(name, args+1) {
3271                 DBusMessage *reply;
3272
3273                 if (!(m = dbus_message_new_method_call(
3274                                       "org.freedesktop.systemd1",
3275                                       "/org/freedesktop/systemd1",
3276                                       "org.freedesktop.systemd1.Manager",
3277                                       "ResetFailedUnit"))) {
3278                         log_error("Could not allocate message.");
3279                         r = -ENOMEM;
3280                         goto finish;
3281                 }
3282
3283                 if (!dbus_message_append_args(m,
3284                                               DBUS_TYPE_STRING, name,
3285                                               DBUS_TYPE_INVALID)) {
3286                         log_error("Could not append arguments to message.");
3287                         r = -ENOMEM;
3288                         goto finish;
3289                 }
3290
3291                 if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3292                         log_error("Failed to issue method call: %s", bus_error_message(&error));
3293                         r = -EIO;
3294                         goto finish;
3295                 }
3296
3297                 dbus_message_unref(m);
3298                 dbus_message_unref(reply);
3299                 m = reply = NULL;
3300         }
3301
3302         r = 0;
3303
3304 finish:
3305         if (m)
3306                 dbus_message_unref(m);
3307
3308         dbus_error_free(&error);
3309
3310         return r;
3311 }
3312
3313 static int show_enviroment(DBusConnection *bus, char **args) {
3314         DBusMessage *m = NULL, *reply = NULL;
3315         DBusError error;
3316         DBusMessageIter iter, sub, sub2;
3317         int r;
3318         const char
3319                 *interface = "org.freedesktop.systemd1.Manager",
3320                 *property = "Environment";
3321
3322         dbus_error_init(&error);
3323
3324         pager_open_if_enabled();
3325
3326         if (!(m = dbus_message_new_method_call(
3327                               "org.freedesktop.systemd1",
3328                               "/org/freedesktop/systemd1",
3329                               "org.freedesktop.DBus.Properties",
3330                               "Get"))) {
3331                 log_error("Could not allocate message.");
3332                 return -ENOMEM;
3333         }
3334
3335         if (!dbus_message_append_args(m,
3336                                       DBUS_TYPE_STRING, &interface,
3337                                       DBUS_TYPE_STRING, &property,
3338                                       DBUS_TYPE_INVALID)) {
3339                 log_error("Could not append arguments to message.");
3340                 r = -ENOMEM;
3341                 goto finish;
3342         }
3343
3344         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3345                 log_error("Failed to issue method call: %s", bus_error_message(&error));
3346                 r = -EIO;
3347                 goto finish;
3348         }
3349
3350         if (!dbus_message_iter_init(reply, &iter) ||
3351             dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_VARIANT)  {
3352                 log_error("Failed to parse reply.");
3353                 r = -EIO;
3354                 goto finish;
3355         }
3356
3357         dbus_message_iter_recurse(&iter, &sub);
3358
3359         if (dbus_message_iter_get_arg_type(&sub) != DBUS_TYPE_ARRAY ||
3360             dbus_message_iter_get_element_type(&sub) != DBUS_TYPE_STRING)  {
3361                 log_error("Failed to parse reply.");
3362                 r = -EIO;
3363                 goto finish;
3364         }
3365
3366         dbus_message_iter_recurse(&sub, &sub2);
3367
3368         while (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_INVALID) {
3369                 const char *text;
3370
3371                 if (dbus_message_iter_get_arg_type(&sub2) != DBUS_TYPE_STRING) {
3372                         log_error("Failed to parse reply.");
3373                         r = -EIO;
3374                         goto finish;
3375                 }
3376
3377                 dbus_message_iter_get_basic(&sub2, &text);
3378                 printf("%s\n", text);
3379
3380                 dbus_message_iter_next(&sub2);
3381         }
3382
3383         r = 0;
3384
3385 finish:
3386         if (m)
3387                 dbus_message_unref(m);
3388
3389         if (reply)
3390                 dbus_message_unref(reply);
3391
3392         dbus_error_free(&error);
3393
3394         return r;
3395 }
3396
3397 static int set_environment(DBusConnection *bus, char **args) {
3398         DBusMessage *m = NULL, *reply = NULL;
3399         DBusError error;
3400         int r;
3401         const char *method;
3402         DBusMessageIter iter, sub;
3403         char **name;
3404
3405         dbus_error_init(&error);
3406
3407         method = streq(args[0], "set-environment")
3408                 ? "SetEnvironment"
3409                 : "UnsetEnvironment";
3410
3411         if (!(m = dbus_message_new_method_call(
3412                               "org.freedesktop.systemd1",
3413                               "/org/freedesktop/systemd1",
3414                               "org.freedesktop.systemd1.Manager",
3415                               method))) {
3416
3417                 log_error("Could not allocate message.");
3418                 return -ENOMEM;
3419         }
3420
3421         dbus_message_iter_init_append(m, &iter);
3422
3423         if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "s", &sub)) {
3424                 log_error("Could not append arguments to message.");
3425                 r = -ENOMEM;
3426                 goto finish;
3427         }
3428
3429         STRV_FOREACH(name, args+1)
3430                 if (!dbus_message_iter_append_basic(&sub, DBUS_TYPE_STRING, name)) {
3431                         log_error("Could not append arguments to message.");
3432                         r = -ENOMEM;
3433                         goto finish;
3434                 }
3435
3436         if (!dbus_message_iter_close_container(&iter, &sub)) {
3437                 log_error("Could not append arguments to message.");
3438                 r = -ENOMEM;
3439                 goto finish;
3440         }
3441
3442         if (!(reply = dbus_connection_send_with_reply_and_block(bus, m, -1, &error))) {
3443                 log_error("Failed to issue method call: %s", bus_error_message(&error));
3444                 r = -EIO;
3445                 goto finish;
3446         }
3447
3448         r = 0;
3449
3450 finish:
3451         if (m)
3452                 dbus_message_unref(m);
3453
3454         if (reply)
3455                 dbus_message_unref(reply);
3456
3457         dbus_error_free(&error);
3458
3459         return r;
3460 }
3461
3462 static int enable_sysv_units(char **args) {
3463         int r = 0;
3464
3465 #if defined (HAVE_SYSV_COMPAT) && (defined(TARGET_FEDORA) || defined(TARGET_MANDRIVA) || defined(TARGET_SUSE) || defined(TARGET_MEEGO) || defined(TARGET_ALTLINUX) || defined(TARGET_MAGEIA))
3466         const char *verb = args[0];
3467         unsigned f = 1, t = 1;
3468         LookupPaths paths;
3469
3470         if (arg_scope != UNIT_FILE_SYSTEM)
3471                 return 0;
3472
3473         if (!streq(verb, "enable") &&
3474             !streq(verb, "disable") &&
3475             !streq(verb, "is-enabled"))
3476                 return 0;
3477
3478         /* Processes all SysV units, and reshuffles the array so that
3479          * afterwards only the native units remain */
3480
3481         zero(paths);
3482         r = lookup_paths_init(&paths, MANAGER_SYSTEM, false);
3483         if (r < 0)
3484                 return r;
3485
3486         r = 0;
3487
3488         for (f = 1; args[f]; f++) {
3489                 const char *name;
3490                 char *p;
3491                 bool found_native = false, found_sysv;
3492                 unsigned c = 1;
3493                 const char *argv[6] = { "/sbin/chkconfig", NULL, NULL, NULL, NULL };
3494                 char **k, *l, *q = NULL;
3495                 int j;
3496                 pid_t pid;
3497                 siginfo_t status;
3498
3499                 name = args[f];
3500
3501                 if (!endswith(name, ".service"))
3502                         continue;
3503
3504                 if (path_is_absolute(name))
3505                         continue;
3506
3507                 STRV_FOREACH(k, paths.unit_path) {
3508                         p = NULL;
3509
3510                         if (!isempty(arg_root))
3511                                 asprintf(&p, "%s/%s/%s", arg_root, *k, name);
3512                         else
3513                                 asprintf(&p, "%s/%s", *k, name);
3514
3515                         if (!p) {
3516                                 log_error("No memory");
3517                                 r = -ENOMEM;
3518                                 goto finish;
3519                         }
3520
3521                         found_native = access(p, F_OK) >= 0;
3522                         free(p);
3523
3524                         if (found_native)
3525                                 break;
3526                 }
3527
3528                 if (found_native)
3529                         continue;
3530
3531                 p = NULL;
3532                 if (!isempty(arg_root))
3533                         asprintf(&p, "%s/" SYSTEM_SYSVINIT_PATH "/%s", arg_root, name);
3534                 else
3535                         asprintf(&p, SYSTEM_SYSVINIT_PATH "/%s", name);
3536                 if (!p) {
3537                         log_error("No memory");
3538                         r = -ENOMEM;
3539                         goto finish;
3540                 }
3541
3542                 p[strlen(p) - sizeof(".service") + 1] = 0;
3543                 found_sysv = access(p, F_OK) >= 0;
3544
3545                 if (!found_sysv) {
3546                         free(p);
3547                         continue;
3548                 }
3549
3550                 /* Mark this entry, so that we don't try enabling it as native unit */
3551                 args[f] = (char*) "";
3552
3553                 log_info("%s is not a native service, redirecting to /sbin/chkconfig.", name);
3554
3555                 if (!isempty(arg_root))
3556                         argv[c++] = q = strappend("--root=", arg_root);
3557
3558                 argv[c++] = file_name_from_path(p);
3559                 argv[c++] =
3560                         streq(verb, "enable") ? "on" :
3561                         streq(verb, "disable") ? "off" : "--level=5";
3562                 argv[c] = NULL;
3563
3564                 l = strv_join((char**)argv, " ");
3565                 if (!l) {
3566                         log_error("No memory.");
3567                         free(q);
3568                         free(p);
3569                         r = -ENOMEM;
3570                         goto finish;
3571                 }
3572
3573                 log_info("Executing %s", l);
3574                 free(l);
3575
3576                 pid = fork();
3577                 if (pid < 0) {
3578                         log_error("Failed to fork: %m");
3579                         free(p);
3580                         free(q);
3581                         r = -errno;
3582                         goto finish;
3583                 } else if (pid == 0) {
3584                         /* Child */
3585
3586                         execv(argv[0], (char**) argv);
3587                         _exit(EXIT_FAILURE);
3588                 }
3589
3590                 free(p);
3591                 free(q);
3592
3593                 j = wait_for_terminate(pid, &status);
3594                 if (j < 0) {
3595                         log_error("Failed to wait for child: %s", strerror(-r));
3596                         r = j;
3597                         goto finish;
3598                 }
3599
3600                 if (status.si_code == CLD_EXITED) {
3601                         if (streq(verb, "is-enabled")) {
3602                                 if (status.si_status == 0) {
3603                                         if (!arg_quiet)
3604                                                 puts("enabled");
3605                                         r = 1;
3606                                 } else {
3607                                         if (!arg_quiet)
3608                                                 puts("disabled");
3609                                 }
3610
3611                         } else if (status.si_status != 0) {
3612                                 r = -EINVAL;
3613                                 goto finish;
3614                         }
3615                 } else {
3616                         r = -EPROTO;
3617                         goto finish;
3618                 }
3619         }
3620
3621 finish:
3622         lookup_paths_free(&paths);
3623
3624         /* Drop all SysV units */
3625         for (f = 1, t = 1; args[f]; f++) {
3626
3627                 if (isempty(args[f]))
3628                         continue;
3629
3630                 args[t++] = args[f];
3631         }
3632
3633         args[t] = NULL;
3634
3635 #endif
3636         return r;
3637 }
3638
3639 static int enable_unit(DBusConnection *bus, char **args) {
3640         const char *verb = args[0];
3641         UnitFileChange *changes = NULL;