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loginctl: use new udev_device_has_tag() call from libudev where applicable
[thirdparty/systemd.git] / src / logind-dbus.c
CommitLineData
3f49d45a
LP		 1/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
2
3/***
4 This file is part of systemd.
5
6 Copyright 2011 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
a185c5aa
LP		 22#include <errno.h>
23#include <string.h>
98a28fef 24#include <unistd.h>
7f7bb946 25#include <pwd.h>
a185c5aa 26
3f49d45a
LP		 27#include "logind.h"
28#include "dbus-common.h"
98a28fef 29#include "strv.h"
7f7bb946 30#include "polkit.h"
3f49d45a
LP		 31
32#define BUS_MANAGER_INTERFACE \
33 " <interface name=\"org.freedesktop.login1.Manager\">\n" \
bef422ae 34 " <method name=\"GetSession\">\n" \
3f49d45a 35 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
bef422ae 36 " <arg name=\"session\" type=\"o\" direction=\"out\"/>\n" \
3f49d45a
LP		 37 " </method>\n" \
38 " <method name=\"GetUser\">\n" \
bef422ae 39 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
3f49d45a
LP		 40 " <arg name=\"user\" type=\"o\" direction=\"out\"/>\n" \
41 " </method>\n" \
bef422ae 42 " <method name=\"GetSeat\">\n" \
3f49d45a 43 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
bef422ae 44 " <arg name=\"seat\" type=\"o\" direction=\"out\"/>\n" \
3f49d45a 45 " </method>\n" \
bef422ae 46 " <method name=\"ListSessions\">\n" \
e1c9c2d5 47 " <arg name=\"sessions\" type=\"a(susso)\" direction=\"out\"/>\n" \
3f49d45a
LP		 48 " </method>\n" \
49 " <method name=\"ListUsers\">\n" \
50 " <arg name=\"users\" type=\"a(uso)\" direction=\"out\"/>\n" \
51 " </method>\n" \
bef422ae
LP		 52 " <method name=\"ListSeats\">\n" \
53 " <arg name=\"seats\" type=\"a(so)\" direction=\"out\"/>\n" \
3f49d45a
LP		 54 " </method>\n" \
55 " <method name=\"CreateSession\">\n" \
56 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
57 " <arg name=\"leader\" type=\"u\" direction=\"in\"/>\n" \
4d6d6518 58 " <arg name=\"sevice\" type=\"s\" direction=\"in\"/>\n" \
3f49d45a
LP		 59 " <arg name=\"type\" type=\"s\" direction=\"in\"/>\n" \
60 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
4d6d6518 61 " <arg name=\"vtnr\" type=\"u\" direction=\"in\"/>\n" \
3f49d45a
LP		 62 " <arg name=\"tty\" type=\"s\" direction=\"in\"/>\n" \
63 " <arg name=\"display\" type=\"s\" direction=\"in\"/>\n" \
64 " <arg name=\"remote\" type=\"b\" direction=\"in\"/>\n" \
65 " <arg name=\"remote_user\" type=\"s\" direction=\"in\"/>\n" \
66 " <arg name=\"remote_host\" type=\"s\" direction=\"in\"/>\n" \
67 " <arg name=\"controllers\" type=\"as\" direction=\"in\"/>\n" \
68 " <arg name=\"reset_controllers\" type=\"as\" direction=\"in\"/>\n" \
98a28fef 69 " <arg name=\"kill_processes\" type=\"b\" direction=\"in\"/>\n" \
3f49d45a
LP		 70 " <arg name=\"id\" type=\"s\" direction=\"out\"/>\n" \
71 " <arg name=\"path\" type=\"o\" direction=\"out\"/>\n" \
98a28fef 72 " <arg name=\"runtime_path\" type=\"o\" direction=\"out\"/>\n" \
3f49d45a
LP		 73 " <arg name=\"fd\" type=\"h\" direction=\"out\"/>\n" \
74 " </method>\n" \
a185c5aa
LP		 75 " <method name=\"ActivateSession\">\n" \
76 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
77 " </method>\n" \
88e3dc90
LP		 78 " <method name=\"LockSession\">\n" \
79 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
80 " </method>\n" \
81 " <method name=\"UnlockSession\">\n" \
82 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
83 " </method>\n" \
de07ab16
LP		 84 " <method name=\"KillSession\">\n" \
85 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
86 " <arg name=\"who\" type=\"s\"/>\n" \
87 " <arg name=\"signal\" type=\"s\"/>\n" \
88 " </method>\n" \
89 " <method name=\"KillUser\">\n" \
90 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
91 " <arg name=\"signal\" type=\"s\"/>\n" \
92 " </method>\n" \
3f49d45a
LP		 93 " <method name=\"TerminateSession\">\n" \
94 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
95 " </method>\n" \
96 " <method name=\"TerminateUser\">\n" \
bef422ae 97 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
3f49d45a
LP		 98 " </method>\n" \
99 " <method name=\"TerminateSeat\">\n" \
100 " <arg name=\"id\" type=\"s\" direction=\"in\"/>\n" \
101 " </method>\n" \
7f7bb946
LP		 102 " <method name=\"SetUserLinger\">\n" \
103 " <arg name=\"uid\" type=\"u\" direction=\"in\"/>\n" \
104 " <arg name=\"b\" type=\"b\" direction=\"in\"/>\n" \
105 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
106 " </method>\n" \
47a26690
LP		 107 " <method name=\"AttachDevice\">\n" \
108 " <arg name=\"seat\" type=\"s\" direction=\"in\"/>\n" \
109 " <arg name=\"sysfs\" type=\"s\" direction=\"in\"/>\n" \
110 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
111 " </method>\n" \
b668e064
LP		 112 " <method name=\"FlushDevices\">\n" \
113 " <arg name=\"interactive\" type=\"b\" direction=\"in\"/>\n" \
114 " </method>\n" \
3f49d45a
LP		 115 " <signal name=\"SessionNew\">\n" \
116 " <arg name=\"id\" type=\"s\"/>\n" \
117 " <arg name=\"path\" type=\"o\"/>\n" \
118 " </signal>\n" \
119 " <signal name=\"SessionRemoved\">\n" \
120 " <arg name=\"id\" type=\"s\"/>\n" \
121 " <arg name=\"path\" type=\"o\"/>\n" \
122 " </signal>\n" \
123 " <signal name=\"UserNew\">\n" \
124 " <arg name=\"uid\" type=\"u\"/>\n" \
125 " <arg name=\"path\" type=\"o\"/>\n" \
126 " </signal>\n" \
127 " <signal name=\"UserRemoved\">\n" \
128 " <arg name=\"uid\" type=\"u\"/>\n" \
129 " <arg name=\"path\" type=\"o\"/>\n" \
130 " </signal>\n" \
131 " <signal name=\"SeatNew\">\n" \
132 " <arg name=\"id\" type=\"s\"/>\n" \
133 " <arg name=\"path\" type=\"o\"/>\n" \
134 " </signal>\n" \
135 " <signal name=\"SeatRemoved\">\n" \
136 " <arg name=\"id\" type=\"s\"/>\n" \
137 " <arg name=\"path\" type=\"o\"/>\n" \
138 " </signal>\n" \
139 " <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
140 " <property name=\"Controllers\" type=\"as\" access=\"read\"/>\n" \
141 " <property name=\"ResetControllers\" type=\"as\" access=\"read\"/>\n" \
142 " <property name=\"NAutoVTs\" type=\"u\" access=\"read\"/>\n" \
143 " <property name=\"KillOnlyUsers\" type=\"as\" access=\"read\"/>\n" \
144 " <property name=\"KillExcludeUsers\" type=\"as\" access=\"read\"/>\n" \
145 " <property name=\"KillUserProcesses\" type=\"b\" access=\"read\"/>\n" \
a185c5aa
LP		 146 " <property name=\"IdleHint\" type=\"b\" access=\"read\"/>\n" \
147 " <property name=\"IdleSinceHint\" type=\"t\" access=\"read\"/>\n" \
148 " <property name=\"IdleSinceHintMonotonic\" type=\"t\" access=\"read\"/>\n" \
3f49d45a
LP		 149 " </interface>\n"
150
151#define INTROSPECTION_BEGIN \
152 DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE \
153 "<node>\n" \
154 BUS_MANAGER_INTERFACE \
155 BUS_PROPERTIES_INTERFACE \
156 BUS_PEER_INTERFACE \
157 BUS_INTROSPECTABLE_INTERFACE
158
159#define INTROSPECTION_END \
160 "</node>\n"
161
162#define INTERFACES_LIST \
163 BUS_GENERIC_INTERFACES_LIST \
164 "org.freedesktop.login1.Manager\0"
165
a185c5aa
LP		 166static int bus_manager_append_idle_hint(DBusMessageIter *i, const char *property, void *data) {
167 Manager *m = data;
77527da0 168 dbus_bool_t b;
a185c5aa
LP		 169
170 assert(i);
171 assert(property);
172 assert(m);
173
77527da0 174 b = manager_get_idle_hint(m, NULL) > 0;
a185c5aa
LP		 175 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_BOOLEAN, &b))
176 return -ENOMEM;
177
178 return 0;
179}
180
181static int bus_manager_append_idle_hint_since(DBusMessageIter *i, const char *property, void *data) {
182 Manager *m = data;
183 dual_timestamp t;
184 uint64_t u;
185
186 assert(i);
187 assert(property);
188 assert(m);
189
190 manager_get_idle_hint(m, &t);
191 u = streq(property, "IdleSinceHint") ? t.realtime : t.monotonic;
192
193 if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT64, &u))
194 return -ENOMEM;
195
196 return 0;
197}
198
98a28fef
LP		 199static int bus_manager_create_session(Manager *m, DBusMessage *message, DBusMessage **_reply) {
200 Session *session = NULL;
201 User *user = NULL;
202 const char *type, *seat, *tty, *display, *remote_user, *remote_host, *service;
203 uint32_t uid, leader, audit_id = 0;
204 dbus_bool_t remote, kill_processes;
205 char **controllers = NULL, **reset_controllers = NULL;
206 SessionType t;
207 Seat *s;
208 DBusMessageIter iter;
209 int r;
07714753 210 char *id = NULL, *p;
4d6d6518 211 uint32_t vtnr = 0;
932e3ee7 212 int fifo_fd = -1;
98a28fef
LP		 213 DBusMessage *reply = NULL;
214 bool b;
215
216 assert(m);
217 assert(message);
218 assert(_reply);
219
220 if (!dbus_message_iter_init(message, &iter) ||
221 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
222 return -EINVAL;
223
224 dbus_message_iter_get_basic(&iter, &uid);
225
226 if (!dbus_message_iter_next(&iter) ||
227 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
228 return -EINVAL;
229
230 dbus_message_iter_get_basic(&iter, &leader);
231
232 if (leader <= 0 ||
233 !dbus_message_iter_next(&iter) ||
234 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
235 return -EINVAL;
236
237 dbus_message_iter_get_basic(&iter, &service);
238
239 if (!dbus_message_iter_next(&iter) ||
240 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
241 return -EINVAL;
242
243 dbus_message_iter_get_basic(&iter, &type);
244 t = session_type_from_string(type);
245
246 if (t < 0 ||
247 !dbus_message_iter_next(&iter) ||
248 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
249 return -EINVAL;
250
251 dbus_message_iter_get_basic(&iter, &seat);
252
253 if (isempty(seat))
254 s = NULL;
255 else {
256 s = hashmap_get(m->seats, seat);
257 if (!s)
258 return -ENOENT;
259 }
260
4d6d6518
LP		 261 if (!dbus_message_iter_next(&iter) ||
262 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_UINT32)
263 return -EINVAL;
264
265 dbus_message_iter_get_basic(&iter, &vtnr);
266
98a28fef
LP		 267 if (!dbus_message_iter_next(&iter) ||
268 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
269 return -EINVAL;
270
271 dbus_message_iter_get_basic(&iter, &tty);
272
273 if (tty_is_vc(tty)) {
4d6d6518 274 int v;
98a28fef
LP		 275
276 if (!s)
277 s = m->vtconsole;
278 else if (s != m->vtconsole)
279 return -EINVAL;
280
4d6d6518
LP		 281 v = vtnr_from_tty(tty);
282
283 if (v <= 0)
284 return v < 0 ? v : -EINVAL;
98a28fef
LP		 285
286 if (vtnr <= 0)
4d6d6518
LP		 287 vtnr = (uint32_t) v;
288 else if (vtnr != (uint32_t) v)
289 return -EINVAL;
98a28fef 290
bf100920 291 } else if (!isempty(tty) && s && seat_is_vtconsole(s))
98a28fef
LP		 292 return -EINVAL;
293
4d6d6518
LP		 294 if (s) {
295 if (seat_is_vtconsole(s)) {
296 if (vtnr <= 0 || vtnr > 63)
297 return -EINVAL;
298 } else {
299 if (vtnr > 0)
300 return -EINVAL;
301 }
302 }
303
98a28fef
LP		 304 if (!dbus_message_iter_next(&iter) ||
305 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
306 return -EINVAL;
307
308 dbus_message_iter_get_basic(&iter, &display);
309
310 if (!dbus_message_iter_next(&iter) ||
311 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN)
312 return -EINVAL;
313
314 dbus_message_iter_get_basic(&iter, &remote);
315
316 if (!dbus_message_iter_next(&iter) ||
317 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
318 return -EINVAL;
319
320 dbus_message_iter_get_basic(&iter, &remote_user);
321
322 if (!dbus_message_iter_next(&iter) ||
323 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_STRING)
324 return -EINVAL;
325
326 dbus_message_iter_get_basic(&iter, &remote_host);
327
328 if (!dbus_message_iter_next(&iter) ||
329 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
330 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING)
331 return -EINVAL;
332
333 r = bus_parse_strv_iter(&iter, &controllers);
334 if (r < 0)
335 return -EINVAL;
336
25d93491
LP		 337 if (strv_contains(controllers, "systemd") ||
338 !dbus_message_iter_next(&iter) ||
98a28fef
LP		 339 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_ARRAY ||
340 dbus_message_iter_get_element_type(&iter) != DBUS_TYPE_STRING) {
341 r = -EINVAL;
342 goto fail;
343 }
344
345 r = bus_parse_strv_iter(&iter, &reset_controllers);
346 if (r < 0)
347 goto fail;
348
25d93491
LP		 349 if (strv_contains(reset_controllers, "systemd") ||
350 !dbus_message_iter_next(&iter) ||
98a28fef
LP		 351 dbus_message_iter_get_arg_type(&iter) != DBUS_TYPE_BOOLEAN) {
352 r = -EINVAL;
353 goto fail;
354 }
355
356 dbus_message_iter_get_basic(&iter, &kill_processes);
357
358 r = manager_add_user_by_uid(m, uid, &user);
359 if (r < 0)
360 goto fail;
361
362 audit_session_from_pid(leader, &audit_id);
363
07714753 364 if (audit_id > 0) {
98a28fef 365 asprintf(&id, "%lu", (unsigned long) audit_id);
98a28fef 366
07714753
LP		 367 if (!id) {
368 r = -ENOMEM;
369 goto fail;
370 }
98a28fef 371
21c390cc
LP		 372 session = hashmap_get(m->sessions, id);
373
374 if (session) {
375
932e3ee7
LP		 376 fifo_fd = session_create_fifo(session);
377 if (fifo_fd < 0) {
378 r = fifo_fd;
379 goto fail;
380 }
381
21c390cc
LP		 382 /* Session already exists, client is probably
383 * something like "su" which changes uid but
384 * is still the same audit session */
385
386 reply = dbus_message_new_method_return(message);
387 if (!reply) {
388 r = -ENOMEM;
389 goto fail;
390 }
391
21c390cc
LP		 392 p = session_bus_path(session);
393 if (!p) {
394 r = -ENOMEM;
395 goto fail;
396 }
397
398 b = dbus_message_append_args(
399 reply,
400 DBUS_TYPE_STRING, &session->id,
401 DBUS_TYPE_OBJECT_PATH, &p,
402 DBUS_TYPE_STRING, &session->user->runtime_path,
932e3ee7 403 DBUS_TYPE_UNIX_FD, &fifo_fd,
21c390cc
LP		 404 DBUS_TYPE_INVALID);
405 free(p);
406
407 if (!b) {
408 r = -ENOMEM;
409 goto fail;
410 }
411
932e3ee7 412 close_nointr_nofail(fifo_fd);
21c390cc
LP		 413 *_reply = reply;
414
415 return 0;
07714753
LP		 416 }
417
418 } else {
419 do {
420 free(id);
421 asprintf(&id, "c%lu", ++m->session_counter);
422
423 if (!id) {
424 r = -ENOMEM;
425 goto fail;
426 }
427
428 } while (hashmap_get(m->sessions, id));
98a28fef
LP		 429 }
430
431 r = manager_add_session(m, user, id, &session);
432 free(id);
433 if (r < 0)
434 goto fail;
435
436 session->leader = leader;
437 session->audit_id = audit_id;
438 session->type = t;
439 session->remote = remote;
440 session->controllers = controllers;
441 session->reset_controllers = reset_controllers;
442 session->kill_processes = kill_processes;
443 session->vtnr = vtnr;
444
445 controllers = reset_controllers = NULL;
446
447 if (!isempty(tty)) {
448 session->tty = strdup(tty);
449 if (!session->tty) {
450 r = -ENOMEM;
451 goto fail;
452 }
453 }
454
455 if (!isempty(display)) {
456 session->display = strdup(display);
457 if (!session->display) {
458 r = -ENOMEM;
459 goto fail;
460 }
461 }
462
463 if (!isempty(remote_user)) {
464 session->remote_user = strdup(remote_user);
465 if (!session->remote_user) {
466 r = -ENOMEM;
467 goto fail;
468 }
469 }
470
471 if (!isempty(remote_host)) {
472 session->remote_host = strdup(remote_host);
473 if (!session->remote_host) {
474 r = -ENOMEM;
475 goto fail;
476 }
477 }
478
479 if (!isempty(service)) {
480 session->service = strdup(service);
481 if (!session->service) {
482 r = -ENOMEM;
483 goto fail;
484 }
485 }
486
932e3ee7
LP		 487 fifo_fd = session_create_fifo(session);
488 if (fifo_fd < 0) {
489 r = fifo_fd;
98a28fef
LP		 490 goto fail;
491 }
492
98a28fef
LP		 493 if (s) {
494 r = seat_attach_session(s, session);
495 if (r < 0)
496 goto fail;
497 }
498
499 r = session_start(session);
500 if (r < 0)
501 goto fail;
502
503 reply = dbus_message_new_method_return(message);
504 if (!reply) {
505 r = -ENOMEM;
506 goto fail;
507 }
508
509 p = session_bus_path(session);
510 if (!p) {
511 r = -ENOMEM;
512 goto fail;
513 }
514
515 b = dbus_message_append_args(
516 reply,
517 DBUS_TYPE_STRING, &session->id,
518 DBUS_TYPE_OBJECT_PATH, &p,
519 DBUS_TYPE_STRING, &session->user->runtime_path,
932e3ee7 520 DBUS_TYPE_UNIX_FD, &fifo_fd,
98a28fef
LP		 521 DBUS_TYPE_INVALID);
522 free(p);
523
524 if (!b) {
525 r = -ENOMEM;
526 goto fail;
527 }
528
932e3ee7 529 close_nointr_nofail(fifo_fd);
98a28fef
LP		 530 *_reply = reply;
531
532 return 0;
533
534fail:
535 strv_free(controllers);
536 strv_free(reset_controllers);
537
538 if (session)
539 session_add_to_gc_queue(session);
540
541 if (user)
542 user_add_to_gc_queue(user);
543
932e3ee7
LP		 544 if (fifo_fd >= 0)
545 close_nointr_nofail(fifo_fd);
98a28fef
LP		 546
547 if (reply)
548 dbus_message_unref(reply);
549
550 return r;
551}
552
b668e064
LP		 553static int trigger_device(Manager *m, const char *prefix) {
554 struct udev_enumerate *e;
555 struct udev_list_entry *first, *item;
556 int r;
557
558 assert(m);
559
560 e = udev_enumerate_new(m->udev);
561 if (!e) {
562 r = -ENOMEM;
563 goto finish;
564 }
565
566 if (udev_enumerate_scan_devices(e) < 0) {
567 r = -EIO;
568 goto finish;
569 }
570
571 first = udev_enumerate_get_list_entry(e);
572 udev_list_entry_foreach(item, first) {
573 char *t;
574 const char *p;
575
576 p = udev_list_entry_get_name(item);
577
578 if (prefix && !path_startswith(p, prefix))
579 continue;
580
581 t = strappend(p, "/uevent");
582 if (!t) {
583 r = -ENOMEM;
584 goto finish;
585 }
586
587 write_one_line_file(t, "change");
588 free(t);
589 }
590
591 r = 0;
592
593finish:
594 if (e)
595 udev_enumerate_unref(e);
596
597 return r;
598}
599
47a26690
LP		 600static int attach_device(Manager *m, const char *seat, const char *sysfs) {
601 struct udev_device *d;
602 char *rule = NULL, *file = NULL;
c28fa3d3 603 const char *id_for_seat;
47a26690
LP		 604 int r;
605
606 assert(m);
607 assert(seat);
608 assert(sysfs);
609
610 d = udev_device_new_from_syspath(m->udev, sysfs);
611 if (!d)
612 return -ENODEV;
613
309c2a2c 614 if (!udev_device_has_tag(d, "seat")) {
47a26690
LP		 615 r = -ENODEV;
616 goto finish;
617 }
618
c28fa3d3
LP		 619 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
620 if (!id_for_seat) {
47a26690
LP		 621 r = -ENODEV;
622 goto finish;
623 }
624
c28fa3d3 625 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0) {
47a26690
LP		 626 r = -ENOMEM;
627 goto finish;
628 }
629
c28fa3d3 630 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0) {
47a26690
LP		 631 r = -ENOMEM;
632 goto finish;
633 }
634
c28fa3d3 635 mkdir_p("/etc/udev/rules.d", 0755);
b5ef5549 636 r = write_one_line_file_atomic(file, rule);
a0a0c7f1
LP		 637 if (r < 0)
638 goto finish;
639
b668e064 640 r = trigger_device(m, sysfs);
47a26690
LP		 641
642finish:
643 free(rule);
644 free(file);
645
646 if (d)
647 udev_device_unref(d);
648
649 return r;
650}
651
b668e064
LP		 652static int flush_devices(Manager *m) {
653 DIR *d;
654
655 assert(m);
656
657 d = opendir("/etc/udev/rules.d");
658 if (!d) {
659 if (errno != ENOENT)
660 log_warning("Failed to open /etc/udev/rules.d: %m");
661 } else {
662 struct dirent *de;
663
664 while ((de = readdir(d))) {
665
666 if (!dirent_is_file(de))
667 continue;
668
669 if (!startswith(de->d_name, "72-seat-"))
670 continue;
671
672 if (!endswith(de->d_name, ".rules"))
673 continue;
674
675 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
676 log_warning("Failed to unlink %s: %m", de->d_name);
677 }
678
679 closedir(d);
680 }
681
682 return trigger_device(m, NULL);
683}
684
3f49d45a
LP		 685static DBusHandlerResult manager_message_handler(
686 DBusConnection *connection,
687 DBusMessage *message,
688 void *userdata) {
689
690 Manager *m = userdata;
691
692 const BusProperty properties[] = {
a185c5aa
LP		 693 { "org.freedesktop.login1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_path },
694 { "org.freedesktop.login1.Manager", "Controllers", bus_property_append_strv, "as", m->controllers },
193197e8 695 { "org.freedesktop.login1.Manager", "ResetControllers", bus_property_append_strv, "as", m->reset_controllers },
a185c5aa
LP		 696 { "org.freedesktop.login1.Manager", "NAutoVTs", bus_property_append_unsigned, "u", &m->n_autovts },
697 { "org.freedesktop.login1.Manager", "KillOnlyUsers", bus_property_append_strv, "as", m->kill_only_users },
698 { "org.freedesktop.login1.Manager", "KillExcludeUsers", bus_property_append_strv, "as", m->kill_exclude_users },
699 { "org.freedesktop.login1.Manager", "KillUserProcesses", bus_property_append_bool, "b", &m->kill_user_processes },
700 { "org.freedesktop.login1.Manager", "IdleHint", bus_manager_append_idle_hint, "b", m },
701 { "org.freedesktop.login1.Manager", "IdleSinceHint", bus_manager_append_idle_hint_since, "t", m },
702 { "org.freedesktop.login1.Manager", "IdleSinceHintMonotonic", bus_manager_append_idle_hint_since, "t", m },
3f49d45a
LP		 703 { NULL, NULL, NULL, NULL, NULL }
704 };
705
706 DBusError error;
707 DBusMessage *reply = NULL;
bef422ae 708 int r;
3f49d45a
LP		 709
710 assert(connection);
711 assert(message);
712 assert(m);
713
714 dbus_error_init(&error);
715
bef422ae
LP		 716 if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSession")) {
717 const char *name;
718 char *p;
719 Session *session;
720 bool b;
721
722 if (!dbus_message_get_args(
723 message,
724 &error,
725 DBUS_TYPE_STRING, &name,
726 DBUS_TYPE_INVALID))
727 return bus_send_error_reply(connection, message, &error, -EINVAL);
728
729 session = hashmap_get(m->sessions, name);
730 if (!session)
731 return bus_send_error_reply(connection, message, &error, -ENOENT);
732
733 reply = dbus_message_new_method_return(message);
734 if (!reply)
735 goto oom;
736
737 p = session_bus_path(session);
738 if (!p)
739 goto oom;
740
741 b = dbus_message_append_args(
742 reply,
743 DBUS_TYPE_OBJECT_PATH, &p,
744 DBUS_TYPE_INVALID);
745 free(p);
746
747 if (!b)
748 goto oom;
749
750 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetUser")) {
751 uint32_t uid;
752 char *p;
753 User *user;
754 bool b;
755
756 if (!dbus_message_get_args(
757 message,
758 &error,
759 DBUS_TYPE_UINT32, &uid,
760 DBUS_TYPE_INVALID))
761 return bus_send_error_reply(connection, message, &error, -EINVAL);
762
763 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
764 if (!user)
765 return bus_send_error_reply(connection, message, &error, -ENOENT);
766
767 reply = dbus_message_new_method_return(message);
768 if (!reply)
769 goto oom;
770
771 p = user_bus_path(user);
772 if (!p)
773 goto oom;
774
775 b = dbus_message_append_args(
776 reply,
777 DBUS_TYPE_OBJECT_PATH, &p,
778 DBUS_TYPE_INVALID);
779 free(p);
780
781 if (!b)
782 goto oom;
783
784 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "GetSeat")) {
785 const char *name;
786 char *p;
787 Seat *seat;
788 bool b;
789
790 if (!dbus_message_get_args(
791 message,
792 &error,
793 DBUS_TYPE_STRING, &name,
794 DBUS_TYPE_INVALID))
795 return bus_send_error_reply(connection, message, &error, -EINVAL);
796
797 seat = hashmap_get(m->seats, name);
798 if (!seat)
799 return bus_send_error_reply(connection, message, &error, -ENOENT);
800
801 reply = dbus_message_new_method_return(message);
802 if (!reply)
803 goto oom;
804
805 p = seat_bus_path(seat);
806 if (!p)
807 goto oom;
808
809 b = dbus_message_append_args(
810 reply,
811 DBUS_TYPE_OBJECT_PATH, &p,
812 DBUS_TYPE_INVALID);
813 free(p);
814
815 if (!b)
816 goto oom;
817
e1c9c2d5
LP		 818 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSessions")) {
819 char *p;
820 Session *session;
821 Iterator i;
822 DBusMessageIter iter, sub;
823 const char *empty = "";
824
825 reply = dbus_message_new_method_return(message);
826 if (!reply)
827 goto oom;
828
829 dbus_message_iter_init_append(reply, &iter);
830
dec15e92 831 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(susso)", &sub))
e1c9c2d5
LP		 832 goto oom;
833
834 HASHMAP_FOREACH(session, m->sessions, i) {
835 DBusMessageIter sub2;
836 uint32_t uid;
837
838 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
839 goto oom;
840
841 uid = session->user->uid;
842
843 p = session_bus_path(session);
844 if (!p)
845 goto oom;
846
847 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->id) ||
848 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
849 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &session->user->name) ||
850 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, session->seat ? (const char**) &session->seat->id : &empty) ||
851 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
852 free(p);
853 goto oom;
854 }
855
856 free(p);
857
858 if (!dbus_message_iter_close_container(&sub, &sub2))
859 goto oom;
860 }
861
862 if (!dbus_message_iter_close_container(&iter, &sub))
863 goto oom;
864
865 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListUsers")) {
866 char *p;
867 User *user;
868 Iterator i;
869 DBusMessageIter iter, sub;
870
871 reply = dbus_message_new_method_return(message);
872 if (!reply)
873 goto oom;
874
875 dbus_message_iter_init_append(reply, &iter);
876
dec15e92 877 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(uso)", &sub))
e1c9c2d5
LP		 878 goto oom;
879
880 HASHMAP_FOREACH(user, m->users, i) {
881 DBusMessageIter sub2;
882 uint32_t uid;
883
884 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
885 goto oom;
886
887 uid = user->uid;
888
889 p = user_bus_path(user);
890 if (!p)
891 goto oom;
892
893 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &uid) ||
894 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &user->name) ||
895 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
896 free(p);
897 goto oom;
898 }
899
900 free(p);
901
902 if (!dbus_message_iter_close_container(&sub, &sub2))
903 goto oom;
904 }
905
906 if (!dbus_message_iter_close_container(&iter, &sub))
907 goto oom;
908
909 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ListSeats")) {
910 char *p;
911 Seat *seat;
912 Iterator i;
913 DBusMessageIter iter, sub;
914
915 reply = dbus_message_new_method_return(message);
916 if (!reply)
917 goto oom;
918
919 dbus_message_iter_init_append(reply, &iter);
920
dec15e92 921 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(so)", &sub))
e1c9c2d5
LP		 922 goto oom;
923
924 HASHMAP_FOREACH(seat, m->seats, i) {
925 DBusMessageIter sub2;
926
927 if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
928 goto oom;
929
930 p = seat_bus_path(seat);
931 if (!p)
932 goto oom;
933
934 if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &seat->id) ||
935 !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &p)) {
936 free(p);
937 goto oom;
938 }
939
940 free(p);
941
942 if (!dbus_message_iter_close_container(&sub, &sub2))
943 goto oom;
944 }
945
946 if (!dbus_message_iter_close_container(&iter, &sub))
947 goto oom;
948
98a28fef
LP		 949 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "CreateSession")) {
950
951 r = bus_manager_create_session(m, message, &reply);
952 if (r == -ENOMEM)
953 goto oom;
954
955 if (r < 0)
956 return bus_send_error_reply(connection, message, &error, r);
957
bef422ae
LP		 958 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "ActivateSession")) {
959 const char *name;
960 Session *session;
961
962 if (!dbus_message_get_args(
963 message,
964 &error,
965 DBUS_TYPE_STRING, &name,
966 DBUS_TYPE_INVALID))
967 return bus_send_error_reply(connection, message, &error, -EINVAL);
968
969 session = hashmap_get(m->sessions, name);
970 if (!session)
971 return bus_send_error_reply(connection, message, &error, -ENOENT);
972
973 r = session_activate(session);
974 if (r < 0)
975 return bus_send_error_reply(connection, message, NULL, r);
976
977 reply = dbus_message_new_method_return(message);
978 if (!reply)
979 goto oom;
980
88e3dc90
LP		 981 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "LockSession") ||
982 dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "UnlockSession")) {
983 const char *name;
984 Session *session;
985
986 if (!dbus_message_get_args(
987 message,
988 &error,
989 DBUS_TYPE_STRING, &name,
990 DBUS_TYPE_INVALID))
991 return bus_send_error_reply(connection, message, &error, -EINVAL);
992
993 session = hashmap_get(m->sessions, name);
994 if (!session)
995 return bus_send_error_reply(connection, message, &error, -ENOENT);
996
997 if (session_send_lock(session, streq(dbus_message_get_member(message), "LockSession")) < 0)
998 goto oom;
999
1000 reply = dbus_message_new_method_return(message);
1001 if (!reply)
1002 goto oom;
1003
de07ab16
LP		 1004 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillSession")) {
1005 const char *swho;
1006 int32_t signo;
1007 KillWho who;
1008 const char *name;
1009 Session *session;
1010
1011 if (!dbus_message_get_args(
1012 message,
1013 &error,
1014 DBUS_TYPE_STRING, &name,
1015 DBUS_TYPE_STRING, &swho,
1016 DBUS_TYPE_INT32, &signo,
1017 DBUS_TYPE_INVALID))
1018 return bus_send_error_reply(connection, message, &error, -EINVAL);
1019
1020 if (isempty(swho))
1021 who = KILL_ALL;
1022 else {
1023 who = kill_who_from_string(swho);
1024 if (who < 0)
1025 return bus_send_error_reply(connection, message, &error, -EINVAL);
1026 }
1027
1028 if (signo <= 0 || signo >= _NSIG)
1029 return bus_send_error_reply(connection, message, &error, -EINVAL);
1030
1031 session = hashmap_get(m->sessions, name);
1032 if (!session)
1033 return bus_send_error_reply(connection, message, &error, -ENOENT);
1034
1035 r = session_kill(session, who, signo);
1036 if (r < 0)
1037 return bus_send_error_reply(connection, message, NULL, r);
1038
1039 reply = dbus_message_new_method_return(message);
1040 if (!reply)
1041 goto oom;
1042
1043 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "KillUser")) {
1044 uint32_t uid;
1045 User *user;
1046 int32_t signo;
1047
1048 if (!dbus_message_get_args(
1049 message,
1050 &error,
1051 DBUS_TYPE_UINT32, &uid,
1052 DBUS_TYPE_INT32, &signo,
1053 DBUS_TYPE_INVALID))
1054 return bus_send_error_reply(connection, message, &error, -EINVAL);
1055
1056 if (signo <= 0 || signo >= _NSIG)
1057 return bus_send_error_reply(connection, message, &error, -EINVAL);
1058
1059 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1060 if (!user)
1061 return bus_send_error_reply(connection, message, &error, -ENOENT);
1062
1063 r = user_kill(user, signo);
1064 if (r < 0)
1065 return bus_send_error_reply(connection, message, NULL, r);
1066
1067 reply = dbus_message_new_method_return(message);
1068 if (!reply)
1069 goto oom;
1070
bef422ae
LP		 1071 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSession")) {
1072 const char *name;
1073 Session *session;
1074
1075 if (!dbus_message_get_args(
1076 message,
1077 &error,
1078 DBUS_TYPE_STRING, &name,
1079 DBUS_TYPE_INVALID))
1080 return bus_send_error_reply(connection, message, &error, -EINVAL);
1081
1082 session = hashmap_get(m->sessions, name);
1083 if (!session)
1084 return bus_send_error_reply(connection, message, &error, -ENOENT);
1085
1086 r = session_stop(session);
1087 if (r < 0)
1088 return bus_send_error_reply(connection, message, NULL, r);
1089
1090 reply = dbus_message_new_method_return(message);
1091 if (!reply)
1092 goto oom;
1093
1094 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateUser")) {
1095 uint32_t uid;
1096 User *user;
1097
1098 if (!dbus_message_get_args(
1099 message,
1100 &error,
1101 DBUS_TYPE_UINT32, &uid,
1102 DBUS_TYPE_INVALID))
1103 return bus_send_error_reply(connection, message, &error, -EINVAL);
1104
1105 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1106 if (!user)
1107 return bus_send_error_reply(connection, message, &error, -ENOENT);
1108
1109 r = user_stop(user);
1110 if (r < 0)
1111 return bus_send_error_reply(connection, message, NULL, r);
1112
1113 reply = dbus_message_new_method_return(message);
1114 if (!reply)
1115 goto oom;
1116
1117 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "TerminateSeat")) {
1118 const char *name;
1119 Seat *seat;
1120
1121 if (!dbus_message_get_args(
1122 message,
1123 &error,
1124 DBUS_TYPE_STRING, &name,
1125 DBUS_TYPE_INVALID))
1126 return bus_send_error_reply(connection, message, &error, -EINVAL);
1127
1128 seat = hashmap_get(m->seats, name);
1129 if (!seat)
1130 return bus_send_error_reply(connection, message, &error, -ENOENT);
1131
1132 r = seat_stop_sessions(seat);
1133 if (r < 0)
1134 return bus_send_error_reply(connection, message, NULL, r);
1135
1136 reply = dbus_message_new_method_return(message);
1137 if (!reply)
1138 goto oom;
1139
7f7bb946
LP		 1140 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "SetUserLinger")) {
1141 uint32_t uid;
1142 struct passwd *pw;
1143 dbus_bool_t b, interactive;
1144 char *path;
1145
1146 if (!dbus_message_get_args(
1147 message,
1148 &error,
1149 DBUS_TYPE_UINT32, &uid,
1150 DBUS_TYPE_BOOLEAN, &b,
1151 DBUS_TYPE_BOOLEAN, &interactive,
1152 DBUS_TYPE_INVALID))
1153 return bus_send_error_reply(connection, message, &error, -EINVAL);
1154
1155 errno = 0;
1156 pw = getpwuid(uid);
1157 if (!pw)
1158 return bus_send_error_reply(connection, message, NULL, errno ? -errno : -EINVAL);
1159
1160 r = verify_polkit(connection, message, "org.freedesktop.login1.set-user-linger", interactive, &error);
1161 if (r < 0)
1162 return bus_send_error_reply(connection, message, &error, r);
1163
1164 r = safe_mkdir("/var/lib/systemd/linger", 0755, 0, 0);
1165 if (r < 0)
1166 return bus_send_error_reply(connection, message, &error, r);
1167
1168 path = strappend("/var/lib/systemd/linger/", pw->pw_name);
1169 if (!path)
1170 goto oom;
1171
1172 if (b) {
38f3fc7d
LP		 1173 User *u;
1174
7f7bb946
LP		 1175 r = touch(path);
1176 free(path);
1177
1178 if (r < 0)
1179 return bus_send_error_reply(connection, message, &error, r);
38f3fc7d
LP		 1180
1181 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1182 user_start(u);
1183
7f7bb946 1184 } else {
38f3fc7d
LP		 1185 User *u;
1186
7f7bb946
LP		 1187 r = unlink(path);
1188 free(path);
1189
1190 if (r < 0 && errno != ENOENT)
1191 return bus_send_error_reply(connection, message, &error, -errno);
38f3fc7d
LP		 1192
1193 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1194 if (u)
1195 user_add_to_gc_queue(u);
7f7bb946
LP		 1196 }
1197
1198 reply = dbus_message_new_method_return(message);
1199 if (!reply)
1200 goto oom;
1201
47a26690
LP		 1202 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "AttachDevice")) {
1203 const char *sysfs, *seat;
1204 dbus_bool_t interactive;
1205
1206 if (!dbus_message_get_args(
1207 message,
1208 &error,
1209 DBUS_TYPE_STRING, &seat,
1210 DBUS_TYPE_STRING, &sysfs,
1211 DBUS_TYPE_BOOLEAN, &interactive,
1212 DBUS_TYPE_INVALID))
1213 return bus_send_error_reply(connection, message, &error, -EINVAL);
1214
1215 if (!path_startswith(sysfs, "/sys") || !seat_name_is_valid(seat))
1216 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1217
1218 r = verify_polkit(connection, message, "org.freedesktop.login1.attach-device", interactive, &error);
1219 if (r < 0)
1220 return bus_send_error_reply(connection, message, &error, r);
1221
1222 r = attach_device(m, seat, sysfs);
1223 if (r < 0)
1224 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1225
1226 reply = dbus_message_new_method_return(message);
1227 if (!reply)
1228 goto oom;
7f7bb946 1229
b668e064
LP		 1230
1231 } else if (dbus_message_is_method_call(message, "org.freedesktop.login1.Manager", "FlushDevices")) {
1232 dbus_bool_t interactive;
1233
1234 if (!dbus_message_get_args(
1235 message,
1236 &error,
1237 DBUS_TYPE_BOOLEAN, &interactive,
1238 DBUS_TYPE_INVALID))
1239 return bus_send_error_reply(connection, message, &error, -EINVAL);
1240
1241 r = verify_polkit(connection, message, "org.freedesktop.login1.flush-devices", interactive, &error);
1242 if (r < 0)
1243 return bus_send_error_reply(connection, message, &error, r);
1244
1245 r = flush_devices(m);
1246 if (r < 0)
1247 return bus_send_error_reply(connection, message, NULL, -EINVAL);
1248
1249 reply = dbus_message_new_method_return(message);
1250 if (!reply)
1251 goto oom;
1252
bef422ae 1253 } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
3f49d45a
LP		 1254 char *introspection = NULL;
1255 FILE *f;
1256 Iterator i;
1257 Session *session;
1258 Seat *seat;
1259 User *user;
1260 size_t size;
1261 char *p;
1262
1263 if (!(reply = dbus_message_new_method_return(message)))
1264 goto oom;
1265
1266 /* We roll our own introspection code here, instead of
1267 * relying on bus_default_message_handler() because we
1268 * need to generate our introspection string
1269 * dynamically. */
1270
1271 if (!(f = open_memstream(&introspection, &size)))
1272 goto oom;
1273
1274 fputs(INTROSPECTION_BEGIN, f);
1275
1276 HASHMAP_FOREACH(seat, m->seats, i) {
1277 p = bus_path_escape(seat->id);
1278
1279 if (p) {
1280 fprintf(f, "<node name=\"seat/%s\"/>", p);
1281 free(p);
1282 }
1283 }
1284
1285 HASHMAP_FOREACH(user, m->users, i)
1286 fprintf(f, "<node name=\"user/%llu\"/>", (unsigned long long) user->uid);
1287
1288 HASHMAP_FOREACH(session, m->sessions, i) {
1289 p = bus_path_escape(session->id);
1290
1291 if (p) {
1292 fprintf(f, "<node name=\"session/%s\"/>", p);
1293 free(p);
1294 }
1295 }
1296
1297 fputs(INTROSPECTION_END, f);
1298
1299 if (ferror(f)) {
1300 fclose(f);
1301 free(introspection);
1302 goto oom;
1303 }
1304
1305 fclose(f);
1306
1307 if (!introspection)
1308 goto oom;
1309
1310 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
1311 free(introspection);
1312 goto oom;
1313 }
1314
1315 free(introspection);
1316 } else
1317 return bus_default_message_handler(connection, message, NULL, INTERFACES_LIST, properties);
1318
1319 if (reply) {
1320 if (!dbus_connection_send(connection, reply, NULL))
1321 goto oom;
1322
1323 dbus_message_unref(reply);
1324 }
1325
1326 return DBUS_HANDLER_RESULT_HANDLED;
1327
1328oom:
1329 if (reply)
1330 dbus_message_unref(reply);
1331
1332 dbus_error_free(&error);
1333
1334 return DBUS_HANDLER_RESULT_NEED_MEMORY;
1335}
1336
1337const DBusObjectPathVTable bus_manager_vtable = {
1338 .message_function = manager_message_handler
1339};
9418f147 1340
1713813d
LP		 1341DBusHandlerResult bus_message_filter(
1342 DBusConnection *connection,
1343 DBusMessage *message,
1344 void *userdata) {
1345
1346 Manager *m = userdata;
1347 DBusError error;
1348
1349 assert(m);
1350 assert(connection);
1351 assert(message);
1352
1353 dbus_error_init(&error);
1354
1355 if (dbus_message_is_signal(message, "org.freedesktop.systemd1.Agent", "Released")) {
1356 const char *cgroup;
1357
1358 if (!dbus_message_get_args(message, &error,
1359 DBUS_TYPE_STRING, &cgroup,
1360 DBUS_TYPE_INVALID))
1361 log_error("Failed to parse Released message: %s", bus_error_message(&error));
1362 else
1363 manager_cgroup_notify_empty(m, cgroup);
1364 }
1365
1366 dbus_error_free(&error);
1367
1368 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
1369}
1370
9418f147
LP		 1371int manager_send_changed(Manager *manager, const char *properties) {
1372 DBusMessage *m;
1373 int r = -ENOMEM;
1374
1375 assert(manager);
1376
1377 m = bus_properties_changed_new("/org/freedesktop/login1", "org.freedesktop.login1.Manager", properties);
1378 if (!m)
1379 goto finish;
1380
1381 if (!dbus_connection_send(manager->bus, m, NULL))
1382 goto finish;
1383
1384 r = 0;
1385
1386finish:
1387 if (m)
1388 dbus_message_unref(m);
1389
1390 return r;
1391}
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