]> git.ipfire.org Git - thirdparty/systemd.git/blame - src/login/logind-dbus.c
projects / thirdparty / systemd.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
sd-rtnl: message - protect against SEGFAULT when reading messages
[thirdparty/systemd.git] / src / login / 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
5430f7f2
LP		 9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
3f49d45a
LP		 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
5430f7f2 16 Lesser General Public License for more details.
3f49d45a 17
5430f7f2 18 You should have received a copy of the GNU Lesser General Public License
3f49d45a
LP		 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>
adacb957 26#include <sys/capability.h>
a185c5aa 27
cc377381
LP		 28#include "sd-id128.h"
29#include "sd-messages.h"
98a28fef 30#include "strv.h"
49e942b2 31#include "mkdir.h"
9eb977db 32#include "path-util.h"
55af3897 33#include "special.h"
19adb8a3 34#include "sleep-config.h"
a5c32cff
HH		 35#include "fileio-label.h"
36#include "label.h"
9444b1f2
LP		 37#include "utf8.h"
38#include "unit-name.h"
fb6becb4 39#include "virt.h"
cc377381
LP		 40#include "audit.h"
41#include "bus-util.h"
42#include "bus-error.h"
43#include "logind.h"
718db961 44#include "bus-errors.h"
06acf2d4 45#include "udev-util.h"
3f49d45a 46
cc377381
LP		 47static int property_get_idle_hint(
48 sd_bus *bus,
49 const char *path,
50 const char *interface,
51 const char *property,
52 sd_bus_message *reply,
ebcf1f97
LP		 53 void *userdata,
54 sd_bus_error *error) {
a185c5aa 55
cc377381 56 Manager *m = userdata;
a185c5aa 57
cc377381
LP		 58 assert(bus);
59 assert(reply);
60 assert(m);
61
62 return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0);
a185c5aa
LP		 63}
64
cc377381
LP		 65static int property_get_idle_since_hint(
66 sd_bus *bus,
67 const char *path,
68 const char *interface,
69 const char *property,
70 sd_bus_message *reply,
ebcf1f97
LP		 71 void *userdata,
72 sd_bus_error *error) {
cc377381
LP		 73
74 Manager *m = userdata;
a185c5aa 75 dual_timestamp t;
a185c5aa 76
cc377381
LP		 77 assert(bus);
78 assert(reply);
a185c5aa
LP		 79 assert(m);
80
81 manager_get_idle_hint(m, &t);
a185c5aa 82
cc377381 83 return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic);
a185c5aa
LP		 84}
85
cc377381
LP		 86static int property_get_inhibited(
87 sd_bus *bus,
88 const char *path,
89 const char *interface,
90 const char *property,
91 sd_bus_message *reply,
ebcf1f97
LP		 92 void *userdata,
93 sd_bus_error *error) {
cc377381
LP		 94
95 Manager *m = userdata;
f8e2fb7b 96 InhibitWhat w;
f8e2fb7b 97
cc377381
LP		 98 assert(bus);
99 assert(reply);
100 assert(m);
f8e2fb7b 101
cc377381 102 w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY);
f8e2fb7b 103
cc377381 104 return sd_bus_message_append(reply, "s", inhibit_what_to_string(w));
f8e2fb7b
LP		 105}
106
cc377381
LP		 107static int property_get_preparing(
108 sd_bus *bus,
109 const char *path,
110 const char *interface,
111 const char *property,
112 sd_bus_message *reply,
ebcf1f97
LP		 113 void *userdata,
114 sd_bus_error *error) {
cc377381
LP		 115
116 Manager *m = userdata;
117 bool b;
5e4a79da 118
cc377381
LP		 119 assert(bus);
120 assert(reply);
121 assert(m);
5e4a79da
LP		 122
123 if (streq(property, "PreparingForShutdown"))
314b4b0a 124 b = !!(m->action_what & INHIBIT_SHUTDOWN);
5e4a79da 125 else
314b4b0a 126 b = !!(m->action_what & INHIBIT_SLEEP);
5e4a79da 127
cc377381 128 return sd_bus_message_append(reply, "b", b);
5e4a79da
LP		 129}
130
cc377381 131static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction);
fb6becb4 132
ebcf1f97 133static int method_get_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 134 _cleanup_free_ char *p = NULL;
135 Manager *m = userdata;
136 const char *name;
137 Session *session;
138 int r;
139
140 assert(bus);
141 assert(message);
142 assert(m);
143
144 r = sd_bus_message_read(message, "s", &name);
145 if (r < 0)
ebcf1f97 146 return r;
cc377381
LP		 147
148 session = hashmap_get(m->sessions, name);
149 if (!session)
ebcf1f97 150 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
cc377381
LP		 151
152 p = session_bus_path(session);
153 if (!p)
ebcf1f97 154 return -ENOMEM;
cc377381 155
df2d202e 156 return sd_bus_reply_method_return(message, "o", p);
cc377381
LP		 157}
158
ebcf1f97 159static int method_get_session_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 160 _cleanup_free_ char *p = NULL;
954449b8 161 Session *session = NULL;
cc377381 162 Manager *m = userdata;
4e724d9c 163 pid_t pid;
cc377381
LP		 164 int r;
165
166 assert(bus);
167 assert(message);
168 assert(m);
169
4e724d9c
LP		 170 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
171
cc377381
LP		 172 r = sd_bus_message_read(message, "u", &pid);
173 if (r < 0)
ebcf1f97 174 return r;
cc377381 175
4e724d9c 176 if (pid == 0) {
5b12334d
LP		 177 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
178
179 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
180 if (r < 0)
181 return r;
182
183 r = sd_bus_creds_get_pid(creds, &pid);
4e724d9c 184 if (r < 0)
ebcf1f97 185 return r;
4e724d9c
LP		 186 }
187
cc377381
LP		 188 r = manager_get_session_by_pid(m, pid, &session);
189 if (r < 0)
ebcf1f97 190 return r;
cc377381 191 if (!session)
ebcf1f97 192 return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID %lu does not belong to any known session", (unsigned long) pid);
cc377381
LP		 193
194 p = session_bus_path(session);
195 if (!p)
ebcf1f97 196 return -ENOMEM;
cc377381 197
df2d202e 198 return sd_bus_reply_method_return(message, "o", p);
cc377381
LP		 199}
200
ebcf1f97 201static int method_get_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 202 _cleanup_free_ char *p = NULL;
203 Manager *m = userdata;
204 uint32_t uid;
205 User *user;
206 int r;
207
208 assert(bus);
209 assert(message);
210 assert(m);
211
212 r = sd_bus_message_read(message, "u", &uid);
213 if (r < 0)
ebcf1f97 214 return r;
cc377381
LP		 215
216 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
217 if (!user)
ebcf1f97 218 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
cc377381
LP		 219
220 p = user_bus_path(user);
221 if (!p)
ebcf1f97 222 return -ENOMEM;
cc377381 223
df2d202e 224 return sd_bus_reply_method_return(message, "o", p);
cc377381
LP		 225}
226
ebcf1f97 227static int method_get_user_by_pid(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 228 _cleanup_free_ char *p = NULL;
229 Manager *m = userdata;
954449b8 230 User *user = NULL;
4e724d9c 231 pid_t pid;
fb6becb4 232 int r;
98a28fef 233
cc377381
LP		 234 assert(bus);
235 assert(message);
98a28fef 236 assert(m);
cc377381 237
4e724d9c
LP		 238 assert_cc(sizeof(pid_t) == sizeof(uint32_t));
239
cc377381
LP		 240 r = sd_bus_message_read(message, "u", &pid);
241 if (r < 0)
ebcf1f97 242 return r;
cc377381 243
4e724d9c 244 if (pid == 0) {
5b12334d
LP		 245 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
246
247 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
248 if (r < 0)
249 return r;
250
251 r = sd_bus_creds_get_pid(creds, &pid);
4e724d9c 252 if (r < 0)
ebcf1f97 253 return r;
4e724d9c
LP		 254 }
255
cc377381
LP		 256 r = manager_get_user_by_pid(m, pid, &user);
257 if (r < 0)
ebcf1f97 258 return r;
cc377381 259 if (!user)
ebcf1f97 260 return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "PID %lu does not belong to any known or logged in user", (unsigned long) pid);
cc377381
LP		 261
262 p = user_bus_path(user);
263 if (!p)
ebcf1f97 264 return -ENOMEM;
cc377381 265
df2d202e 266 return sd_bus_reply_method_return(message, "o", p);
cc377381
LP		 267}
268
ebcf1f97 269static int method_get_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 270 _cleanup_free_ char *p = NULL;
271 Manager *m = userdata;
272 const char *name;
273 Seat *seat;
274 int r;
275
276 assert(bus);
98a28fef 277 assert(message);
cc377381 278 assert(m);
98a28fef 279
cc377381
LP		 280 r = sd_bus_message_read(message, "s", &name);
281 if (r < 0)
ebcf1f97 282 return r;
98a28fef 283
cc377381
LP		 284 seat = hashmap_get(m->seats, name);
285 if (!seat)
ebcf1f97 286 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
98a28fef 287
cc377381
LP		 288 p = seat_bus_path(seat);
289 if (!p)
ebcf1f97 290 return -ENOMEM;
98a28fef 291
df2d202e 292 return sd_bus_reply_method_return(message, "o", p);
cc377381 293}
98a28fef 294
ebcf1f97 295static int method_list_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 296 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
297 Manager *m = userdata;
298 Session *session;
299 Iterator i;
300 int r;
301
302 assert(bus);
303 assert(message);
304 assert(m);
98a28fef 305
df2d202e 306 r = sd_bus_message_new_method_return(message, &reply);
cc377381 307 if (r < 0)
ebcf1f97 308 return r;
98a28fef 309
cc377381
LP		 310 r = sd_bus_message_open_container(reply, 'a', "(susso)");
311 if (r < 0)
ebcf1f97 312 return r;
cc377381
LP		 313
314 HASHMAP_FOREACH(session, m->sessions, i) {
315 _cleanup_free_ char *p = NULL;
316
317 p = session_bus_path(session);
318 if (!p)
ebcf1f97 319 return -ENOMEM;
cc377381
LP		 320
321 r = sd_bus_message_append(reply, "(susso)",
322 session->id,
323 (uint32_t) session->user->uid,
324 session->user->name,
325 session->seat ? session->seat->id : "",
326 p);
327 if (r < 0)
ebcf1f97 328 return r;
cc377381
LP		 329 }
330
331 r = sd_bus_message_close_container(reply);
332 if (r < 0)
ebcf1f97 333 return r;
cc377381
LP		 334
335 return sd_bus_send(bus, reply, NULL);
336}
337
ebcf1f97 338static int method_list_users(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 339 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
340 Manager *m = userdata;
341 User *user;
342 Iterator i;
343 int r;
344
345 assert(bus);
346 assert(message);
347 assert(m);
348
df2d202e 349 r = sd_bus_message_new_method_return(message, &reply);
cc377381 350 if (r < 0)
ebcf1f97 351 return r;
cc377381
LP		 352
353 r = sd_bus_message_open_container(reply, 'a', "(uso)");
354 if (r < 0)
ebcf1f97 355 return r;
cc377381
LP		 356
357 HASHMAP_FOREACH(user, m->users, i) {
358 _cleanup_free_ char *p = NULL;
359
360 p = user_bus_path(user);
361 if (!p)
ebcf1f97 362 return -ENOMEM;
cc377381
LP		 363
364 r = sd_bus_message_append(reply, "(uso)",
365 (uint32_t) user->uid,
366 user->name,
367 p);
368 if (r < 0)
ebcf1f97 369 return r;
cc377381
LP		 370 }
371
372 r = sd_bus_message_close_container(reply);
373 if (r < 0)
ebcf1f97 374 return r;
cc377381
LP		 375
376 return sd_bus_send(bus, reply, NULL);
377}
378
ebcf1f97 379static int method_list_seats(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 380 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
381 Manager *m = userdata;
382 Seat *seat;
383 Iterator i;
384 int r;
385
386 assert(bus);
387 assert(message);
388 assert(m);
389
df2d202e 390 r = sd_bus_message_new_method_return(message, &reply);
cc377381 391 if (r < 0)
ebcf1f97 392 return r;
cc377381
LP		 393
394 r = sd_bus_message_open_container(reply, 'a', "(so)");
395 if (r < 0)
ebcf1f97 396 return r;
cc377381
LP		 397
398 HASHMAP_FOREACH(seat, m->seats, i) {
399 _cleanup_free_ char *p = NULL;
400
401 p = seat_bus_path(seat);
402 if (!p)
ebcf1f97 403 return -ENOMEM;
cc377381 404
b8358bce 405 r = sd_bus_message_append(reply, "(so)", seat->id, p);
cc377381 406 if (r < 0)
ebcf1f97 407 return r;
cc377381
LP		 408 }
409
410 r = sd_bus_message_close_container(reply);
411 if (r < 0)
ebcf1f97 412 return r;
cc377381
LP		 413
414 return sd_bus_send(bus, reply, NULL);
415}
416
ebcf1f97 417static int method_list_inhibitors(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 418 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
419 Manager *m = userdata;
420 Inhibitor *inhibitor;
421 Iterator i;
422 int r;
423
df2d202e 424 r = sd_bus_message_new_method_return(message, &reply);
cc377381 425 if (r < 0)
ebcf1f97 426 return r;
cc377381
LP		 427
428 r = sd_bus_message_open_container(reply, 'a', "(ssssuu)");
429 if (r < 0)
ebcf1f97 430 return r;
cc377381
LP		 431
432 HASHMAP_FOREACH(inhibitor, m->inhibitors, i) {
433
dbfa3fbb 434 r = sd_bus_message_append(reply, "(ssssuu)",
cc377381
LP		 435 strempty(inhibit_what_to_string(inhibitor->what)),
436 strempty(inhibitor->who),
437 strempty(inhibitor->why),
438 strempty(inhibit_mode_to_string(inhibitor->mode)),
439 (uint32_t) inhibitor->uid,
440 (uint32_t) inhibitor->pid);
441 if (r < 0)
ebcf1f97 442 return r;
cc377381
LP		 443 }
444
445 r = sd_bus_message_close_container(reply);
446 if (r < 0)
ebcf1f97 447 return r;
cc377381
LP		 448
449 return sd_bus_send(bus, reply, NULL);
450}
451
ebcf1f97 452static int method_create_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
a4cd87e9 453 const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop;
cc377381
LP		 454 uint32_t uid, leader, audit_id = 0;
455 _cleanup_free_ char *id = NULL;
456 Session *session = NULL;
457 Manager *m = userdata;
458 User *user = NULL;
459 Seat *seat = NULL;
460 int remote;
461 uint32_t vtnr = 0;
462 SessionType t;
463 SessionClass c;
464 int r;
465
466 assert(bus);
467 assert(message);
468 assert(m);
469
a4cd87e9 470 r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host);
cc377381 471 if (r < 0)
ebcf1f97 472 return r;
cc377381
LP		 473
474 if (leader == 1)
ebcf1f97 475 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
98a28fef 476
e2acb67b
LP		 477 if (isempty(type))
478 t = _SESSION_TYPE_INVALID;
479 else {
480 t = session_type_from_string(type);
481 if (t < 0)
ebcf1f97 482 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type);
e2acb67b 483 }
98a28fef 484
55efac6c 485 if (isempty(class))
e2acb67b
LP		 486 c = _SESSION_CLASS_INVALID;
487 else {
55efac6c 488 c = session_class_from_string(class);
e2acb67b 489 if (c < 0)
ebcf1f97 490 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class);
e2acb67b 491 }
55efac6c 492
a4cd87e9
LP		 493 if (isempty(desktop))
494 desktop = NULL;
495 else {
496 if (!string_is_safe(desktop))
497 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop);
498 }
499
954449b8
LP		 500 if (isempty(cseat))
501 seat = NULL;
98a28fef 502 else {
954449b8
LP		 503 seat = hashmap_get(m->seats, cseat);
504 if (!seat)
d14ab08b 505 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat);
98a28fef
LP		 506 }
507
98a28fef 508 if (tty_is_vc(tty)) {
4d6d6518 509 int v;
98a28fef 510
954449b8 511 if (!seat)
92432fcc
DH		 512 seat = m->seat0;
513 else if (seat != m->seat0)
d14ab08b 514 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "TTY %s is virtual console but seat %s is not seat0", tty, seat->id);
98a28fef 515
4d6d6518 516 v = vtnr_from_tty(tty);
4d6d6518 517 if (v <= 0)
ebcf1f97 518 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty);
98a28fef 519
92bd5ff3 520 if (!vtnr)
4d6d6518
LP		 521 vtnr = (uint32_t) v;
522 else if (vtnr != (uint32_t) v)
ebcf1f97 523 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match");
cc377381 524
d1122ad5
LP		 525 } else if (tty_is_console(tty)) {
526
954449b8 527 if (!seat)
92432fcc
DH		 528 seat = m->seat0;
529 else if (seat != m->seat0)
ebcf1f97 530 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0");
d1122ad5
LP		 531
532 if (vtnr != 0)
ebcf1f97 533 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0");
978cf3c7 534 }
98a28fef 535
954449b8 536 if (seat) {
bf7825ae 537 if (seat_has_vts(seat)) {
c506027a 538 if (!vtnr || vtnr > 63)
ebcf1f97 539 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range");
4d6d6518 540 } else {
d1122ad5 541 if (vtnr != 0)
ebcf1f97 542 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0");
4d6d6518
LP		 543 }
544 }
545
cc377381
LP		 546 r = sd_bus_message_enter_container(message, 'a', "(sv)");
547 if (r < 0)
ebcf1f97 548 return r;
98a28fef 549
e2acb67b
LP		 550 if (t == _SESSION_TYPE_INVALID) {
551 if (!isempty(display))
552 t = SESSION_X11;
553 else if (!isempty(tty))
554 t = SESSION_TTY;
555 else
556 t = SESSION_UNSPECIFIED;
557 }
558
559 if (c == _SESSION_CLASS_INVALID) {
a4cd87e9 560 if (t == SESSION_UNSPECIFIED)
e2acb67b 561 c = SESSION_BACKGROUND;
a4cd87e9
LP		 562 else
563 c = SESSION_USER;
e2acb67b
LP		 564 }
565
9444b1f2 566 if (leader <= 0) {
5b12334d
LP		 567 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
568
569 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
570 if (r < 0)
571 return r;
572
cc377381
LP		 573 assert_cc(sizeof(uint32_t) == sizeof(pid_t));
574
5b12334d 575 r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
cc377381 576 if (r < 0)
ebcf1f97 577 return r;
9444b1f2
LP		 578 }
579
872c8faa 580 manager_get_session_by_pid(m, leader, &session);
fb6becb4 581 if (session) {
fb6becb4
LP		 582 _cleanup_free_ char *path = NULL;
583 _cleanup_close_ int fifo_fd = -1;
98a28fef 584
fb6becb4
LP		 585 /* Session already exists, client is probably
586 * something like "su" which changes uid but is still
587 * the same session */
98a28fef 588
954449b8 589 fifo_fd = session_create_fifo(session);
cc377381 590 if (fifo_fd < 0)
ebcf1f97 591 return fifo_fd;
98a28fef 592
fb6becb4 593 path = session_bus_path(session);
cc377381 594 if (!path)
ebcf1f97 595 return -ENOMEM;
21c390cc 596
236af516
DH		 597 log_debug("Sending reply about an existing session: "
598 "id=%s object_path=%s uid=%u runtime_path=%s "
599 "session_fd=%d seat=%s vtnr=%u",
600 session->id,
601 path,
602 (uint32_t) session->user->uid,
603 session->user->runtime_path,
604 fifo_fd,
605 session->seat ? session->seat->id : "",
606 (uint32_t) session->vtnr);
607
cc377381 608 return sd_bus_reply_method_return(
baae0358 609 message, "soshusub",
cc377381
LP		 610 session->id,
611 path,
612 session->user->runtime_path,
613 fifo_fd,
baae0358 614 (uint32_t) session->user->uid,
cc377381
LP		 615 session->seat ? session->seat->id : "",
616 (uint32_t) session->vtnr,
617 true);
954449b8 618 }
21c390cc 619
954449b8
LP		 620 audit_session_from_pid(leader, &audit_id);
621 if (audit_id > 0) {
622 /* Keep our session IDs and the audit session IDs in sync */
21c390cc 623
cc377381 624 if (asprintf(&id, "%lu", (unsigned long) audit_id) < 0)
ebcf1f97 625 return -ENOMEM;
21c390cc 626
954449b8
LP		 627 /* Wut? There's already a session by this name and we
628 * didn't find it above? Weird, then let's not trust
629 * the audit data and let's better register a new
630 * ID */
631 if (hashmap_get(m->sessions, id)) {
4b549144 632 log_warning("Existing logind session ID %s used by new audit session, ignoring", id);
954449b8 633 audit_id = 0;
8ea913b2 634
954449b8
LP		 635 free(id);
636 id = NULL;
07714753 637 }
954449b8 638 }
07714753 639
954449b8 640 if (!id) {
07714753
LP		 641 do {
642 free(id);
f8e2fb7b 643 id = NULL;
07714753 644
cc377381 645 if (asprintf(&id, "c%lu", ++m->session_counter) < 0)
ebcf1f97 646 return -ENOMEM;
07714753
LP		 647
648 } while (hashmap_get(m->sessions, id));
98a28fef
LP		 649 }
650
954449b8 651 r = manager_add_user_by_uid(m, uid, &user);
ebcf1f97 652 if (r < 0)
954449b8
LP		 653 goto fail;
654
9444b1f2 655 r = manager_add_session(m, id, &session);
ebcf1f97 656 if (r < 0)
98a28fef
LP		 657 goto fail;
658
9444b1f2
LP		 659 session_set_user(session, user);
660
98a28fef
LP		 661 session->leader = leader;
662 session->audit_id = audit_id;
663 session->type = t;
55efac6c 664 session->class = c;
98a28fef 665 session->remote = remote;
98a28fef
LP		 666 session->vtnr = vtnr;
667
98a28fef
LP		 668 if (!isempty(tty)) {
669 session->tty = strdup(tty);
670 if (!session->tty) {
ebcf1f97 671 r = -ENOMEM;
98a28fef
LP		 672 goto fail;
673 }
674 }
675
676 if (!isempty(display)) {
677 session->display = strdup(display);
678 if (!session->display) {
ebcf1f97 679 r = -ENOMEM;
98a28fef
LP		 680 goto fail;
681 }
682 }
683
684 if (!isempty(remote_user)) {
685 session->remote_user = strdup(remote_user);
686 if (!session->remote_user) {
ebcf1f97 687 r = -ENOMEM;
98a28fef
LP		 688 goto fail;
689 }
690 }
691
692 if (!isempty(remote_host)) {
693 session->remote_host = strdup(remote_host);
694 if (!session->remote_host) {
ebcf1f97 695 r = -ENOMEM;
98a28fef
LP		 696 goto fail;
697 }
698 }
699
700 if (!isempty(service)) {
701 session->service = strdup(service);
702 if (!session->service) {
ebcf1f97 703 r = -ENOMEM;
98a28fef
LP		 704 goto fail;
705 }
706 }
707
a4cd87e9
LP		 708 if (!isempty(desktop)) {
709 session->desktop = strdup(desktop);
710 if (!session->desktop) {
711 r = -ENOMEM;
712 goto fail;
713 }
714 }
715
954449b8
LP		 716 if (seat) {
717 r = seat_attach_session(seat, session);
ebcf1f97 718 if (r < 0)
98a28fef
LP		 719 goto fail;
720 }
721
722 r = session_start(session);
ebcf1f97 723 if (r < 0)
98a28fef
LP		 724 goto fail;
725
cc377381 726 session->create_message = sd_bus_message_ref(message);
98a28fef 727
cba38758
LP		 728 /* Now, let's wait until the slice unit and stuff got
729 * created. We send the reply back from
730 * session_send_create_reply().*/
731
cc377381 732 return 1;
98a28fef
LP		 733
734fail:
98a28fef
LP		 735 if (session)
736 session_add_to_gc_queue(session);
737
738 if (user)
739 user_add_to_gc_queue(user);
740
98a28fef
LP		 741 return r;
742}
743
ebcf1f97 744static int method_release_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 745 Manager *m = userdata;
746 Session *session;
747 const char *name;
748 int r;
314b4b0a 749
cc377381
LP		 750 assert(bus);
751 assert(message);
752 assert(m);
753
754 r = sd_bus_message_read(message, "s", &name);
755 if (r < 0)
ebcf1f97 756 return r;
cc377381
LP		 757
758 session = hashmap_get(m->sessions, name);
759 if (!session)
ebcf1f97 760 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
cc377381 761
5f41d1f1 762 session_release(session);
cc377381 763
df2d202e 764 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 765}
766
ebcf1f97 767static int method_activate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 768 Manager *m = userdata;
769 Session *session;
770 const char *name;
771 int r;
f8e2fb7b 772
cc377381
LP		 773 assert(bus);
774 assert(message);
f8e2fb7b 775 assert(m);
cc377381
LP		 776
777 r = sd_bus_message_read(message, "s", &name);
778 if (r < 0)
ebcf1f97 779 return r;
cc377381
LP		 780
781 session = hashmap_get(m->sessions, name);
782 if (!session)
ebcf1f97 783 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
cc377381
LP		 784
785 r = session_activate(session);
786 if (r < 0)
ebcf1f97 787 return r;
cc377381 788
df2d202e 789 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 790}
791
ebcf1f97 792static int method_activate_session_on_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 793 const char *session_name, *seat_name;
794 Manager *m = userdata;
795 Session *session;
796 Seat *seat;
797 int r;
798
799 assert(bus);
f8e2fb7b 800 assert(message);
cc377381 801 assert(m);
f8e2fb7b 802
cc377381
LP		 803 /* Same as ActivateSession() but refuses to work if
804 * the seat doesn't match */
f8e2fb7b 805
cc377381
LP		 806 r = sd_bus_message_read(message, "ss", &session_name, &seat_name);
807 if (r < 0)
ebcf1f97 808 return r;
eecd1362 809
cc377381
LP		 810 session = hashmap_get(m->sessions, session_name);
811 if (!session)
ebcf1f97 812 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", session_name);
beaafb2e 813
cc377381
LP		 814 seat = hashmap_get(m->seats, seat_name);
815 if (!seat)
ebcf1f97 816 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", seat_name);
314b4b0a 817
cc377381 818 if (session->seat != seat)
ebcf1f97 819 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name);
cc377381
LP		 820
821 r = session_activate(session);
f8e2fb7b 822 if (r < 0)
ebcf1f97 823 return r;
f8e2fb7b 824
df2d202e 825 return sd_bus_reply_method_return(message, NULL);
cc377381 826}
f8e2fb7b 827
ebcf1f97 828static int method_lock_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 829 Manager *m = userdata;
830 Session *session;
831 const char *name;
832 int r;
f8e2fb7b 833
cc377381
LP		 834 assert(bus);
835 assert(message);
836 assert(m);
f8e2fb7b 837
cc377381
LP		 838 r = sd_bus_message_read(message, "s", &name);
839 if (r < 0)
ebcf1f97 840 return r;
f8e2fb7b 841
cc377381
LP		 842 session = hashmap_get(m->sessions, name);
843 if (!session)
ebcf1f97 844 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
f8e2fb7b 845
cc377381 846 r = session_send_lock(session, streq(sd_bus_message_get_member(message), "LockSession"));
f8e2fb7b 847 if (r < 0)
ebcf1f97 848 return r;
f8e2fb7b 849
df2d202e 850 return sd_bus_reply_method_return(message, NULL);
cc377381 851}
f8e2fb7b 852
ebcf1f97 853static int method_lock_sessions(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 854 Manager *m = userdata;
855 int r;
f8e2fb7b 856
cc377381
LP		 857 assert(bus);
858 assert(message);
859 assert(m);
f8e2fb7b 860
cc377381
LP		 861 r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions"));
862 if (r < 0)
ebcf1f97 863 return r;
f8e2fb7b 864
df2d202e 865 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 866}
867
ebcf1f97 868static int method_kill_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 869 const char *name, *swho;
870 Manager *m = userdata;
871 Session *session;
872 int32_t signo;
873 KillWho who;
874 int r;
875
876 assert(bus);
877 assert(message);
878 assert(m);
879
880 r = sd_bus_message_read(message, "ssi", &name, &swho, &signo);
881 if (r < 0)
ebcf1f97 882 return r;
cc377381
LP		 883
884 if (isempty(swho))
885 who = KILL_ALL;
886 else {
887 who = kill_who_from_string(swho);
888 if (who < 0)
ebcf1f97 889 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid kill parameter '%s'", swho);
f8e2fb7b
LP		 890 }
891
cc377381 892 if (signo <= 0 || signo >= _NSIG)
ebcf1f97 893 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
f8e2fb7b 894
cc377381
LP		 895 session = hashmap_get(m->sessions, name);
896 if (!session)
ebcf1f97 897 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
f8e2fb7b 898
cc377381
LP		 899 r = session_kill(session, who, signo);
900 if (r < 0)
ebcf1f97 901 return r;
f8e2fb7b 902
df2d202e 903 return sd_bus_reply_method_return(message, NULL);
cc377381 904}
f8e2fb7b 905
ebcf1f97 906static int method_kill_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 907 Manager *m = userdata;
908 uint32_t uid;
909 int32_t signo;
910 User *user;
911 int r;
f8e2fb7b 912
cc377381
LP		 913 assert(bus);
914 assert(message);
915 assert(m);
916
917 r = sd_bus_message_read(message, "ui", &uid, &signo);
918 if (r < 0)
ebcf1f97 919 return r;
cc377381
LP		 920
921 if (signo <= 0 || signo >= _NSIG)
ebcf1f97 922 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal %i", signo);
cc377381
LP		 923
924 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
925 if (!user)
ebcf1f97 926 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
cc377381
LP		 927
928 r = user_kill(user, signo);
929 if (r < 0)
ebcf1f97 930 return r;
cc377381 931
df2d202e 932 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 933}
934
ebcf1f97 935static int method_terminate_session(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 936 Manager *m = userdata;
937 const char *name;
938 Session *session;
939 int r;
940
941 assert(bus);
942 assert(message);
943 assert(m);
944
945 r = sd_bus_message_read(message, "s", &name);
946 if (r < 0)
ebcf1f97 947 return r;
cc377381
LP		 948
949 session = hashmap_get(m->sessions, name);
950 if (!session)
ebcf1f97 951 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
cc377381 952
9bb69af4 953 r = session_stop(session, true);
cc377381 954 if (r < 0)
ebcf1f97 955 return r;
cc377381 956
df2d202e 957 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 958}
959
ebcf1f97 960static int method_terminate_user(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 961 Manager *m = userdata;
962 uint32_t uid;
963 User *user;
964 int r;
965
966 assert(bus);
967 assert(message);
968 assert(m);
969
970 r = sd_bus_message_read(message, "u", &uid);
971 if (r < 0)
ebcf1f97 972 return r;
cc377381
LP		 973
974 user = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
975 if (!user)
ebcf1f97 976 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "No user '%lu' known or logged in", (unsigned long) uid);
cc377381 977
9bb69af4 978 r = user_stop(user, true);
cc377381 979 if (r < 0)
ebcf1f97 980 return r;
cc377381 981
df2d202e 982 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 983}
984
ebcf1f97 985static int method_terminate_seat(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 986 Manager *m = userdata;
987 const char *name;
988 Seat *seat;
989 int r;
990
991 assert(bus);
992 assert(message);
993 assert(m);
994
995 r = sd_bus_message_read(message, "s", &name);
996 if (r < 0)
ebcf1f97 997 return r;
cc377381
LP		 998
999 seat = hashmap_get(m->seats, name);
1000 if (!seat)
ebcf1f97 1001 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
cc377381 1002
9bb69af4 1003 r = seat_stop_sessions(seat, true);
cc377381 1004 if (r < 0)
ebcf1f97 1005 return r;
cc377381 1006
df2d202e 1007 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 1008}
1009
ebcf1f97 1010static int method_set_user_linger(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 1011 _cleanup_free_ char *cc = NULL;
1012 Manager *m = userdata;
1013 int b, r;
1014 struct passwd *pw;
1015 const char *path;
1016 uint32_t uid;
1017 int interactive;
1018
1019 assert(bus);
1020 assert(message);
1021 assert(m);
1022
1023 r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive);
1024 if (r < 0)
ebcf1f97 1025 return r;
cc377381
LP		 1026
1027 errno = 0;
1028 pw = getpwuid(uid);
1029 if (!pw)
ebcf1f97 1030 return errno ? -errno : -ENOENT;
cc377381
LP		 1031
1032 r = bus_verify_polkit_async(bus,
1033 &m->polkit_registry,
1034 message,
1035 "org.freedesktop.login1.set-user-linger",
1036 interactive,
ebcf1f97 1037 error,
cc377381
LP		 1038 method_set_user_linger, m);
1039 if (r < 0)
ebcf1f97 1040 return r;
cc377381
LP		 1041 if (r == 0)
1042 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1043
1044 mkdir_p_label("/var/lib/systemd", 0755);
1045
1046 r = mkdir_safe_label("/var/lib/systemd/linger", 0755, 0, 0);
1047 if (r < 0)
ebcf1f97 1048 return r;
cc377381
LP		 1049
1050 cc = cescape(pw->pw_name);
1051 if (!cc)
ebcf1f97 1052 return -ENOMEM;
cc377381
LP		 1053
1054 path = strappenda("/var/lib/systemd/linger/", cc);
1055 if (b) {
1056 User *u;
1057
1058 r = touch(path);
1059 if (r < 0)
ebcf1f97 1060 return r;
cc377381
LP		 1061
1062 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1063 user_start(u);
1064
1065 } else {
1066 User *u;
1067
1068 r = unlink(path);
1069 if (r < 0 && errno != ENOENT)
ebcf1f97 1070 return -errno;
cc377381
LP		 1071
1072 u = hashmap_get(m->users, ULONG_TO_PTR((unsigned long) uid));
1073 if (u)
1074 user_add_to_gc_queue(u);
1075 }
1076
df2d202e 1077 return sd_bus_reply_method_return(message, NULL);
f8e2fb7b
LP		 1078}
1079
2eb916cd 1080static int trigger_device(Manager *m, struct udev_device *d) {
06acf2d4 1081 _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
b668e064
LP		 1082 struct udev_list_entry *first, *item;
1083 int r;
1084
1085 assert(m);
1086
1087 e = udev_enumerate_new(m->udev);
06acf2d4
LP		 1088 if (!e)
1089 return -ENOMEM;
b668e064 1090
2eb916cd 1091 if (d) {
06acf2d4
LP		 1092 r = udev_enumerate_add_match_parent(e, d);
1093 if (r < 0)
1094 return r;
2eb916cd
LP		 1095 }
1096
06acf2d4
LP		 1097 r = udev_enumerate_scan_devices(e);
1098 if (r < 0)
1099 return r;
b668e064
LP		 1100
1101 first = udev_enumerate_get_list_entry(e);
1102 udev_list_entry_foreach(item, first) {
cc377381 1103 _cleanup_free_ char *t = NULL;
b668e064
LP		 1104 const char *p;
1105
1106 p = udev_list_entry_get_name(item);
1107
b668e064 1108 t = strappend(p, "/uevent");
06acf2d4
LP		 1109 if (!t)
1110 return -ENOMEM;
b668e064 1111
574d5f2d 1112 write_string_file(t, "change");
b668e064
LP		 1113 }
1114
06acf2d4 1115 return 0;
b668e064
LP		 1116}
1117
47a26690 1118static int attach_device(Manager *m, const char *seat, const char *sysfs) {
06acf2d4 1119 _cleanup_udev_device_unref_ struct udev_device *d = NULL;
7fd1b19b 1120 _cleanup_free_ char *rule = NULL, *file = NULL;
c28fa3d3 1121 const char *id_for_seat;
47a26690
LP		 1122 int r;
1123
1124 assert(m);
1125 assert(seat);
1126 assert(sysfs);
1127
1128 d = udev_device_new_from_syspath(m->udev, sysfs);
1129 if (!d)
1130 return -ENODEV;
1131
06acf2d4
LP		 1132 if (!udev_device_has_tag(d, "seat"))
1133 return -ENODEV;
47a26690 1134
c28fa3d3 1135 id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
06acf2d4
LP		 1136 if (!id_for_seat)
1137 return -ENODEV;
47a26690 1138
06acf2d4
LP		 1139 if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0)
1140 return -ENOMEM;
47a26690 1141
06acf2d4
LP		 1142 if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0)
1143 return -ENOMEM;
47a26690 1144
d2e54fae 1145 mkdir_p_label("/etc/udev/rules.d", 0755);
a5c32cff 1146 label_init("/etc");
574d5f2d 1147 r = write_string_file_atomic_label(file, rule);
a0a0c7f1 1148 if (r < 0)
06acf2d4 1149 return r;
47a26690 1150
06acf2d4 1151 return trigger_device(m, d);
47a26690
LP		 1152}
1153
b668e064 1154static int flush_devices(Manager *m) {
7fd1b19b 1155 _cleanup_closedir_ DIR *d;
b668e064
LP		 1156
1157 assert(m);
1158
1159 d = opendir("/etc/udev/rules.d");
1160 if (!d) {
1161 if (errno != ENOENT)
1162 log_warning("Failed to open /etc/udev/rules.d: %m");
1163 } else {
1164 struct dirent *de;
1165
1166 while ((de = readdir(d))) {
1167
1168 if (!dirent_is_file(de))
1169 continue;
1170
1171 if (!startswith(de->d_name, "72-seat-"))
1172 continue;
1173
1174 if (!endswith(de->d_name, ".rules"))
1175 continue;
1176
1177 if (unlinkat(dirfd(d), de->d_name, 0) < 0)
1178 log_warning("Failed to unlink %s: %m", de->d_name);
1179 }
b668e064
LP		 1180 }
1181
1182 return trigger_device(m, NULL);
1183}
1184
ebcf1f97 1185static int method_attach_device(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 1186 const char *sysfs, *seat;
1187 Manager *m = userdata;
1188 int interactive, r;
1189
1190 assert(bus);
1191 assert(message);
1192 assert(m);
1193
1194 r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive);
1195 if (r < 0)
ebcf1f97 1196 return r;
cc377381
LP		 1197
1198 if (!path_startswith(sysfs, "/sys"))
ebcf1f97 1199 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs);
cc377381
LP		 1200
1201 if (!seat_name_is_valid(seat))
ebcf1f97 1202 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat);
cc377381
LP		 1203
1204 r = bus_verify_polkit_async(bus,
1205 &m->polkit_registry,
1206 message,
1207 "org.freedesktop.login1.attach-device",
1208 interactive,
ebcf1f97 1209 error,
cc377381
LP		 1210 method_attach_device, m);
1211 if (r < 0)
ebcf1f97 1212 return r;
cc377381
LP		 1213 if (r == 0)
1214 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1215
1216 r = attach_device(m, seat, sysfs);
1217 if (r < 0)
ebcf1f97 1218 return r;
cc377381 1219
df2d202e 1220 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 1221}
1222
ebcf1f97 1223static int method_flush_devices(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 1224 Manager *m = userdata;
1225 int interactive, r;
1226
1227 assert(bus);
1228 assert(message);
1229 assert(m);
1230
1231 r = sd_bus_message_read(message, "b", &interactive);
1232 if (r < 0)
ebcf1f97 1233 return r;
cc377381
LP		 1234
1235 r = bus_verify_polkit_async(bus,
1236 &m->polkit_registry,
1237 message,
1238 "org.freedesktop.login1.flush-devices",
1239 interactive,
ebcf1f97 1240 error,
cc377381
LP		 1241 method_flush_devices, m);
1242 if (r < 0)
ebcf1f97 1243 return r;
cc377381
LP		 1244 if (r == 0)
1245 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1246
1247 r = flush_devices(m);
1248 if (r < 0)
ebcf1f97 1249 return r;
cc377381 1250
df2d202e 1251 return sd_bus_reply_method_return(message, NULL);
cc377381
LP		 1252}
1253
89f13440 1254static int have_multiple_sessions(
89f13440 1255 Manager *m,
409133be 1256 uid_t uid) {
89f13440 1257
2154761f
MS		 1258 Session *session;
1259 Iterator i;
89f13440
LP		 1260
1261 assert(m);
1262
1ca04b87
LP		 1263 /* Check for other users' sessions. Greeter sessions do not
1264 * count, and non-login sessions do not count either. */
2154761f 1265 HASHMAP_FOREACH(session, m->sessions, i)
1ca04b87 1266 if (session->class == SESSION_USER &&
1ca04b87 1267 session->user->uid != uid)
2154761f 1268 return true;
89f13440
LP		 1269
1270 return false;
1271}
1272
314b4b0a
LP		 1273static int bus_manager_log_shutdown(
1274 Manager *m,
1275 InhibitWhat w,
1276 const char *unit_name) {
1277
1278 const char *p, *q;
1279
1280 assert(m);
1281 assert(unit_name);
1282
1283 if (w != INHIBIT_SHUTDOWN)
1284 return 0;
1285
1286 if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
1287 p = "MESSAGE=System is powering down.";
1288 q = "SHUTDOWN=power-off";
1289 } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
1290 p = "MESSAGE=System is halting.";
1291 q = "SHUTDOWN=halt";
1292 } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
1293 p = "MESSAGE=System is rebooting.";
1294 q = "SHUTDOWN=reboot";
1295 } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
1296 p = "MESSAGE=System is rebooting with kexec.";
1297 q = "SHUTDOWN=kexec";
1298 } else {
1299 p = "MESSAGE=System is shutting down.";
1300 q = NULL;
1301 }
1302
1303 return log_struct(LOG_NOTICE, MESSAGE_ID(SD_MESSAGE_SHUTDOWN),
1304 p,
1305 q, NULL);
1306}
1307
b5d3e168
KS		 1308static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
1309 Manager *m = userdata;
1310
1311 assert(e);
1312 assert(m);
1313
1314 m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
1315 return 0;
1316}
1317
1318int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
1319 int r;
1320
1321 assert(m);
1322
1323 if (until <= now(CLOCK_MONOTONIC))
1324 return 0;
1325
1326 /* We want to ignore the lid switch for a while after each
1327 * suspend, and after boot-up. Hence let's install a timer for
1328 * this. As long as the event source exists we ignore the lid
1329 * switch. */
1330
1331 if (m->lid_switch_ignore_event_source) {
1332 usec_t u;
1333
1334 r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
1335 if (r < 0)
1336 return r;
1337
1338 if (until <= u)
1339 return 0;
1340
1341 r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
1342 } else
1343 r = sd_event_add_monotonic(m->event, &m->lid_switch_ignore_event_source, until, 0, lid_switch_ignore_handler, m);
1344
1345 return r;
1346}
1347
314b4b0a
LP		 1348static int execute_shutdown_or_sleep(
1349 Manager *m,
1350 InhibitWhat w,
1351 const char *unit_name,
cc377381 1352 sd_bus_error *error) {
314b4b0a 1353
cc377381
LP		 1354 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
1355 const char *p;
af9792ac 1356 char *c;
cc377381 1357 int r;
eecd1362 1358
af9792ac 1359 assert(m);
314b4b0a
LP		 1360 assert(w >= 0);
1361 assert(w < _INHIBIT_WHAT_MAX);
d889a206 1362 assert(unit_name);
eecd1362 1363
314b4b0a
LP		 1364 bus_manager_log_shutdown(m, w, unit_name);
1365
cc377381 1366 r = sd_bus_call_method(
af9792ac 1367 m->bus,
eecd1362
LP		 1368 "org.freedesktop.systemd1",
1369 "/org/freedesktop/systemd1",
1370 "org.freedesktop.systemd1.Manager",
b9c26b41 1371 "StartUnit",
af9792ac 1372 error,
cc377381
LP		 1373 &reply,
1374 "ss", unit_name, "replace-irreversibly");
af9792ac
LP		 1375 if (r < 0)
1376 return r;
1377
cc377381
LP		 1378 r = sd_bus_message_read(reply, "o", &p);
1379 if (r < 0)
1380 return r;
af9792ac
LP		 1381
1382 c = strdup(p);
1383 if (!c)
1384 return -ENOMEM;
1385
314b4b0a 1386 m->action_unit = unit_name;
af9792ac
LP		 1387 free(m->action_job);
1388 m->action_job = c;
314b4b0a 1389 m->action_what = w;
af9792ac 1390
f9cd6be1
LP		 1391 /* Make sure the lid switch is ignored for a while */
1392 manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + IGNORE_LID_SWITCH_SUSPEND_USEC);
1393
af9792ac 1394 return 0;
eecd1362
LP		 1395}
1396
314b4b0a
LP		 1397static int delay_shutdown_or_sleep(
1398 Manager *m,
1399 InhibitWhat w,
1400 const char *unit_name) {
eecd1362 1401
eecd1362 1402 assert(m);
d889a206
LP		 1403 assert(w >= 0);
1404 assert(w < _INHIBIT_WHAT_MAX);
314b4b0a 1405 assert(unit_name);
eecd1362 1406
314b4b0a
LP		 1407 m->action_timestamp = now(CLOCK_MONOTONIC);
1408 m->action_unit = unit_name;
1409 m->action_what = w;
d889a206
LP		 1410
1411 return 0;
1412}
1413
cc377381 1414static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
d889a206 1415
cc377381
LP		 1416 static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
1417 [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
1418 [INHIBIT_SLEEP] = "PrepareForSleep"
1419 };
1420
1421 int active = _active;
877d54e9
LP		 1422
1423 assert(m);
314b4b0a
LP		 1424 assert(w >= 0);
1425 assert(w < _INHIBIT_WHAT_MAX);
1426 assert(signal_name[w]);
877d54e9 1427
cc377381
LP		 1428 return sd_bus_emit_signal(m->bus,
1429 "/org/freedesktop/login1",
1430 "org.freedesktop.login1.Manager",
1431 signal_name[w],
1432 "b",
dd9f0525 1433 active);
877d54e9
LP		 1434}
1435
069cfc85
LP		 1436int bus_manager_shutdown_or_sleep_now_or_later(
1437 Manager *m,
1438 const char *unit_name,
1439 InhibitWhat w,
cc377381 1440 sd_bus_error *error) {
069cfc85
LP		 1441
1442 bool delayed;
1443 int r;
1444
1445 assert(m);
1446 assert(unit_name);
1447 assert(w >= 0);
1448 assert(w <= _INHIBIT_WHAT_MAX);
af9792ac 1449 assert(!m->action_job);
069cfc85 1450
314b4b0a
LP		 1451 /* Tell everybody to prepare for shutdown/sleep */
1452 send_prepare_for(m, w, true);
1453
069cfc85
LP		 1454 delayed =
1455 m->inhibit_delay_max > 0 &&
85a428c6 1456 manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL);
069cfc85
LP		 1457
1458 if (delayed)
1459 /* Shutdown is delayed, keep in mind what we
1460 * want to do, and start a timeout */
1461 r = delay_shutdown_or_sleep(m, w, unit_name);
314b4b0a 1462 else
069cfc85
LP		 1463 /* Shutdown is not delayed, execute it
1464 * immediately */
314b4b0a 1465 r = execute_shutdown_or_sleep(m, w, unit_name, error);
069cfc85
LP		 1466
1467 return r;
1468}
1469
cc377381 1470static int method_do_shutdown_or_sleep(
d889a206 1471 Manager *m,
cc377381 1472 sd_bus_message *message,
d889a206
LP		 1473 const char *unit_name,
1474 InhibitWhat w,
1475 const char *action,
1476 const char *action_multiple_sessions,
1477 const char *action_ignore_inhibit,
19adb8a3 1478 const char *sleep_verb,
ebcf1f97
LP		 1479 sd_bus_message_handler_t method,
1480 sd_bus_error *error) {
d889a206 1481
5b12334d 1482 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
069cfc85 1483 bool multiple_sessions, blocked;
cc377381
LP		 1484 int interactive, r;
1485 uid_t uid;
d889a206
LP		 1486
1487 assert(m);
d889a206
LP		 1488 assert(message);
1489 assert(unit_name);
1490 assert(w >= 0);
1491 assert(w <= _INHIBIT_WHAT_MAX);
1492 assert(action);
1493 assert(action_multiple_sessions);
1494 assert(action_ignore_inhibit);
cc377381
LP		 1495 assert(method);
1496
1497 r = sd_bus_message_read(message, "b", &interactive);
1498 if (r < 0)
ebcf1f97 1499 return r;
d889a206 1500
314b4b0a
LP		 1501 /* Don't allow multiple jobs being executed at the same time */
1502 if (m->action_what)
ebcf1f97 1503 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress");
d889a206 1504
19adb8a3
ZJS		 1505 if (sleep_verb) {
1506 r = can_sleep(sleep_verb);
6524990f 1507 if (r < 0)
ebcf1f97 1508 return r;
6524990f
LP		 1509
1510 if (r == 0)
ebcf1f97 1511 return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported");
6524990f
LP		 1512 }
1513
5b12334d
LP		 1514 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
1515 if (r < 0)
1516 return r;
1517
1518 r = sd_bus_creds_get_uid(creds, &uid);
cc377381 1519 if (r < 0)
ebcf1f97 1520 return r;
409133be 1521
cc377381 1522 r = have_multiple_sessions(m, uid);
d889a206 1523 if (r < 0)
ebcf1f97 1524 return r;
d889a206
LP		 1525
1526 multiple_sessions = r > 0;
85a428c6 1527 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
d889a206
LP		 1528
1529 if (multiple_sessions) {
cc377381 1530 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
ebcf1f97 1531 action_multiple_sessions, interactive, error, method, m);
d889a206 1532 if (r < 0)
ebcf1f97 1533 return r;
055d4066
ZJS		 1534 if (r == 0)
1535 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
d889a206
LP		 1536 }
1537
1538 if (blocked) {
cc377381 1539 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
ebcf1f97 1540 action_ignore_inhibit, interactive, error, method, m);
d889a206 1541 if (r < 0)
ebcf1f97 1542 return r;
055d4066
ZJS		 1543 if (r == 0)
1544 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
d889a206
LP		 1545 }
1546
1547 if (!multiple_sessions && !blocked) {
cc377381 1548 r = bus_verify_polkit_async(m->bus, &m->polkit_registry, message,
ebcf1f97 1549 action, interactive, error, method, m);
d889a206 1550 if (r < 0)
ebcf1f97 1551 return r;
055d4066
ZJS		 1552 if (r == 0)
1553 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
d889a206
LP		 1554 }
1555
ebcf1f97 1556 r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error);
d889a206 1557 if (r < 0)
ebcf1f97 1558 return r;
d889a206 1559
df2d202e 1560 return sd_bus_reply_method_return(message, NULL);
eecd1362
LP		 1561}
1562
ebcf1f97 1563static int method_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
3f49d45a
LP		 1564 Manager *m = userdata;
1565
cc377381
LP		 1566 return method_do_shutdown_or_sleep(
1567 m, message,
1568 SPECIAL_POWEROFF_TARGET,
1569 INHIBIT_SHUTDOWN,
1570 "org.freedesktop.login1.power-off",
1571 "org.freedesktop.login1.power-off-multiple-sessions",
1572 "org.freedesktop.login1.power-off-ignore-inhibit",
1573 NULL,
ebcf1f97
LP		 1574 method_poweroff,
1575 error);
cc377381 1576}
88e3dc90 1577
ebcf1f97 1578static int method_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1579 Manager *m = userdata;
88e3dc90 1580
cc377381
LP		 1581 return method_do_shutdown_or_sleep(
1582 m, message,
1583 SPECIAL_REBOOT_TARGET,
1584 INHIBIT_SHUTDOWN,
1585 "org.freedesktop.login1.reboot",
1586 "org.freedesktop.login1.reboot-multiple-sessions",
1587 "org.freedesktop.login1.reboot-ignore-inhibit",
1588 NULL,
ebcf1f97
LP		 1589 method_reboot,
1590 error);
cc377381 1591}
88e3dc90 1592
ebcf1f97 1593static int method_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1594 Manager *m = userdata;
88e3dc90 1595
cc377381
LP		 1596 return method_do_shutdown_or_sleep(
1597 m, message,
1598 SPECIAL_SUSPEND_TARGET,
1599 INHIBIT_SLEEP,
1600 "org.freedesktop.login1.suspend",
1601 "org.freedesktop.login1.suspend-multiple-sessions",
1602 "org.freedesktop.login1.suspend-ignore-inhibit",
1603 "suspend",
ebcf1f97
LP		 1604 method_suspend,
1605 error);
cc377381 1606}
88e3dc90 1607
ebcf1f97 1608static int method_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1609 Manager *m = userdata;
b6160029 1610
cc377381
LP		 1611 return method_do_shutdown_or_sleep(
1612 m, message,
1613 SPECIAL_HIBERNATE_TARGET,
1614 INHIBIT_SLEEP,
1615 "org.freedesktop.login1.hibernate",
1616 "org.freedesktop.login1.hibernate-multiple-sessions",
1617 "org.freedesktop.login1.hibernate-ignore-inhibit",
1618 "hibernate",
ebcf1f97
LP		 1619 method_hibernate,
1620 error);
cc377381 1621}
fa2b196d 1622
ebcf1f97 1623static int method_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1624 Manager *m = userdata;
fa2b196d 1625
cc377381
LP		 1626 return method_do_shutdown_or_sleep(
1627 m, message,
1628 SPECIAL_HYBRID_SLEEP_TARGET,
1629 INHIBIT_SLEEP,
1630 "org.freedesktop.login1.hibernate",
1631 "org.freedesktop.login1.hibernate-multiple-sessions",
1632 "org.freedesktop.login1.hibernate-ignore-inhibit",
1633 "hybrid-sleep",
ebcf1f97
LP		 1634 method_hybrid_sleep,
1635 error);
cc377381 1636}
de07ab16 1637
cc377381
LP		 1638static int method_can_shutdown_or_sleep(
1639 Manager *m,
1640 sd_bus_message *message,
1641 InhibitWhat w,
1642 const char *action,
1643 const char *action_multiple_sessions,
1644 const char *action_ignore_inhibit,
ebcf1f97
LP		 1645 const char *sleep_verb,
1646 sd_bus_error *error) {
de07ab16 1647
5b12334d 1648 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
cc377381
LP		 1649 bool multiple_sessions, challenge, blocked;
1650 const char *result = NULL;
1651 uid_t uid;
1652 int r;
de07ab16 1653
cc377381
LP		 1654 assert(m);
1655 assert(message);
1656 assert(w >= 0);
1657 assert(w <= _INHIBIT_WHAT_MAX);
1658 assert(action);
1659 assert(action_multiple_sessions);
1660 assert(action_ignore_inhibit);
de07ab16 1661
cc377381
LP		 1662 if (sleep_verb) {
1663 r = can_sleep(sleep_verb);
de07ab16 1664 if (r < 0)
ebcf1f97 1665 return r;
cc377381 1666 if (r == 0)
df2d202e 1667 return sd_bus_reply_method_return(message, "s", "na");
cc377381 1668 }
de07ab16 1669
5b12334d
LP		 1670 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID, &creds);
1671 if (r < 0)
1672 return r;
1673
1674 r = sd_bus_creds_get_uid(creds, &uid);
cc377381 1675 if (r < 0)
ebcf1f97 1676 return r;
de07ab16 1677
cc377381
LP		 1678 r = have_multiple_sessions(m, uid);
1679 if (r < 0)
ebcf1f97 1680 return r;
de07ab16 1681
cc377381 1682 multiple_sessions = r > 0;
85a428c6 1683 blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
de07ab16 1684
cc377381 1685 if (multiple_sessions) {
ebcf1f97 1686 r = bus_verify_polkit(m->bus, message, action_multiple_sessions, false, &challenge, error);
de07ab16 1687 if (r < 0)
ebcf1f97 1688 return r;
bef422ae 1689
cc377381
LP		 1690 if (r > 0)
1691 result = "yes";
1692 else if (challenge)
1693 result = "challenge";
1694 else
1695 result = "no";
1696 }
bef422ae 1697
cc377381 1698 if (blocked) {
ebcf1f97 1699 r = bus_verify_polkit(m->bus, message, action_ignore_inhibit, false, &challenge, error);
bef422ae 1700 if (r < 0)
ebcf1f97 1701 return r;
bef422ae 1702
cc377381
LP		 1703 if (r > 0 && !result)
1704 result = "yes";
1705 else if (challenge && (!result || streq(result, "yes")))
1706 result = "challenge";
1707 else
1708 result = "no";
1709 }
bef422ae 1710
cc377381
LP		 1711 if (!multiple_sessions && !blocked) {
1712 /* If neither inhibit nor multiple sessions
1713 * apply then just check the normal policy */
bef422ae 1714
ebcf1f97 1715 r = bus_verify_polkit(m->bus, message, action, false, &challenge, error);
bef422ae 1716 if (r < 0)
ebcf1f97 1717 return r;
bef422ae 1718
cc377381
LP		 1719 if (r > 0)
1720 result = "yes";
1721 else if (challenge)
1722 result = "challenge";
1723 else
1724 result = "no";
1725 }
bef422ae 1726
df2d202e 1727 return sd_bus_reply_method_return(message, "s", result);
cc377381 1728}
bef422ae 1729
ebcf1f97 1730static int method_can_poweroff(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1731 Manager *m = userdata;
bef422ae 1732
cc377381
LP		 1733 return method_can_shutdown_or_sleep(
1734 m, message,
1735 INHIBIT_SHUTDOWN,
1736 "org.freedesktop.login1.power-off",
1737 "org.freedesktop.login1.power-off-multiple-sessions",
1738 "org.freedesktop.login1.power-off-ignore-inhibit",
ebcf1f97
LP		 1739 NULL,
1740 error);
cc377381 1741}
bef422ae 1742
ebcf1f97 1743static int method_can_reboot(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1744 Manager *m = userdata;
bef422ae 1745
cc377381
LP		 1746 return method_can_shutdown_or_sleep(
1747 m, message,
1748 INHIBIT_SHUTDOWN,
1749 "org.freedesktop.login1.reboot",
1750 "org.freedesktop.login1.reboot-multiple-sessions",
1751 "org.freedesktop.login1.reboot-ignore-inhibit",
ebcf1f97
LP		 1752 NULL,
1753 error);
cc377381 1754}
bef422ae 1755
ebcf1f97 1756static int method_can_suspend(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1757 Manager *m = userdata;
7f7bb946 1758
cc377381
LP		 1759 return method_can_shutdown_or_sleep(
1760 m, message,
1761 INHIBIT_SLEEP,
1762 "org.freedesktop.login1.suspend",
1763 "org.freedesktop.login1.suspend-multiple-sessions",
1764 "org.freedesktop.login1.suspend-ignore-inhibit",
ebcf1f97
LP		 1765 "suspend",
1766 error);
cc377381 1767}
7f7bb946 1768
ebcf1f97 1769static int method_can_hibernate(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1770 Manager *m = userdata;
02b16a19 1771
cc377381
LP		 1772 return method_can_shutdown_or_sleep(
1773 m, message,
1774 INHIBIT_SLEEP,
1775 "org.freedesktop.login1.hibernate",
1776 "org.freedesktop.login1.hibernate-multiple-sessions",
1777 "org.freedesktop.login1.hibernate-ignore-inhibit",
ebcf1f97
LP		 1778 "hibernate",
1779 error);
cc377381 1780}
7f7bb946 1781
ebcf1f97 1782static int method_can_hybrid_sleep(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 1783 Manager *m = userdata;
7f7bb946 1784
cc377381
LP		 1785 return method_can_shutdown_or_sleep(
1786 m, message,
1787 INHIBIT_SLEEP,
1788 "org.freedesktop.login1.hibernate",
1789 "org.freedesktop.login1.hibernate-multiple-sessions",
1790 "org.freedesktop.login1.hibernate-ignore-inhibit",
ebcf1f97
LP		 1791 "hybrid-sleep",
1792 error);
cc377381 1793}
38f3fc7d 1794
ebcf1f97 1795static int method_inhibit(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
5b12334d 1796 _cleanup_bus_creds_unref_ sd_bus_creds *creds = NULL;
cc377381
LP		 1797 const char *who, *why, *what, *mode;
1798 _cleanup_free_ char *id = NULL;
1799 _cleanup_close_ int fifo_fd = -1;
1800 Manager *m = userdata;
1801 Inhibitor *i = NULL;
1802 InhibitMode mm;
1803 InhibitWhat w;
1804 pid_t pid;
1805 uid_t uid;
1806 int r;
7f7bb946 1807
cc377381
LP		 1808 assert(bus);
1809 assert(message);
1810 assert(m);
38f3fc7d 1811
cc377381
LP		 1812 r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode);
1813 if (r < 0)
ebcf1f97 1814 return r;
38f3fc7d 1815
cc377381
LP		 1816 w = inhibit_what_from_string(what);
1817 if (w <= 0)
ebcf1f97 1818 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what);
38f3fc7d 1819
cc377381
LP		 1820 mm = inhibit_mode_from_string(mode);
1821 if (mm < 0)
ebcf1f97 1822 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode);
7f7bb946 1823
cc377381
LP		 1824 /* Delay is only supported for shutdown/sleep */
1825 if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP)))
ebcf1f97 1826 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep");
38f3fc7d 1827
cc377381
LP		 1828 /* Don't allow taking delay locks while we are already
1829 * executing the operation. We shouldn't create the impression
1830 * that the lock was successful if the machine is about to go
1831 * down/suspend any moment. */
1832 if (m->action_what & w)
ebcf1f97 1833 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running");
cc377381
LP		 1834
1835 r = bus_verify_polkit_async(bus, &m->polkit_registry, message,
1836 w == INHIBIT_SHUTDOWN ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") :
1837 w == INHIBIT_SLEEP ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep" : "org.freedesktop.login1.inhibit-delay-sleep") :
1838 w == INHIBIT_IDLE ? "org.freedesktop.login1.inhibit-block-idle" :
1839 w == INHIBIT_HANDLE_POWER_KEY ? "org.freedesktop.login1.inhibit-handle-power-key" :
1840 w == INHIBIT_HANDLE_SUSPEND_KEY ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
1841 w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
1842 "org.freedesktop.login1.inhibit-handle-lid-switch",
ebcf1f97 1843 false, error, method_inhibit, m);
cc377381 1844 if (r < 0)
ebcf1f97 1845 return r;
cc377381
LP		 1846 if (r == 0)
1847 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
7f7bb946 1848
5b12334d
LP		 1849 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_UID|SD_BUS_CREDS_PID, &creds);
1850 if (r < 0)
1851 return r;
1852
1853 r = sd_bus_creds_get_uid(creds, &uid);
cc377381 1854 if (r < 0)
ebcf1f97 1855 return r;
7f7bb946 1856
5b12334d 1857 r = sd_bus_creds_get_pid(creds, &pid);
cc377381 1858 if (r < 0)
ebcf1f97 1859 return r;
47a26690 1860
cc377381
LP		 1861 do {
1862 free(id);
1863 id = NULL;
47a26690 1864
cc377381 1865 if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0)
ebcf1f97 1866 return -ENOMEM;
47a26690 1867
cc377381 1868 } while (hashmap_get(m->inhibitors, id));
47a26690 1869
cc377381
LP		 1870 r = manager_add_inhibitor(m, id, &i);
1871 if (r < 0)
ebcf1f97 1872 return r;
47a26690 1873
cc377381
LP		 1874 i->what = w;
1875 i->mode = mm;
1876 i->pid = pid;
1877 i->uid = uid;
1878 i->why = strdup(why);
1879 i->who = strdup(who);
7f7bb946 1880
cc377381 1881 if (!i->why || !i->who) {
ebcf1f97 1882 r = -ENOMEM;
cc377381
LP		 1883 goto fail;
1884 }
b668e064 1885
cc377381
LP		 1886 fifo_fd = inhibitor_create_fifo(i);
1887 if (fifo_fd < 0) {
ebcf1f97 1888 r = fifo_fd;
cc377381
LP		 1889 goto fail;
1890 }
b668e064 1891
cc377381 1892 inhibitor_start(i);
b668e064 1893
df2d202e 1894 return sd_bus_reply_method_return(message, "h", fifo_fd);
b668e064 1895
cc377381
LP		 1896fail:
1897 if (i)
1898 inhibitor_free(i);
89f13440 1899
cc377381
LP		 1900 return r;
1901}
3f49d45a 1902
cc377381
LP		 1903const sd_bus_vtable manager_vtable[] = {
1904 SD_BUS_VTABLE_START(0),
1905
556089dc
LP		 1906 SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
1907 SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
1908 SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
1909 SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST),
cc377381
LP		 1910 SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1911 SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1912 SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1913 SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
1914 SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
556089dc
LP		 1915 SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST),
1916 SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST),
1917 SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST),
1918 SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST),
1919 SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST),
1920 SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST),
1921 SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST),
cc377381
LP		 1922 SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0),
1923 SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0),
1924
adacb957
LP		 1925 SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED),
1926 SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1927 SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED),
1928 SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
1929 SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED),
1930 SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
1931 SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED),
1932 SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED),
1933 SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED),
a4cd87e9 1934 SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0),
cc377381 1935 SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0),
adacb957
LP		 1936 SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
1937 SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED),
cc377381
LP		 1938 SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, 0),
1939 SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, 0),
1940 SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, 0),
1941 SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, 0),
adacb957
LP		 1942 SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1943 SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1944 SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1945 SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1946 SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_CAPABILITY(CAP_KILL)),
1947 SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED),
1948 SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED),
1949 SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED),
1950 SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
1951 SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
1952 SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
1953 SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
1954 SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
1955 SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
1956 SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
1957 SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
1958 SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
1959 SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
1960 SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED),
cc377381
LP		 1961
1962 SD_BUS_SIGNAL("SessionNew", "so", 0),
1963 SD_BUS_SIGNAL("SessionRemoved", "so", 0),
1964 SD_BUS_SIGNAL("UserNew", "uo", 0),
1965 SD_BUS_SIGNAL("UserRemoved", "uo", 0),
1966 SD_BUS_SIGNAL("SeatNew", "so", 0),
1967 SD_BUS_SIGNAL("SeatRemoved", "so", 0),
1968 SD_BUS_SIGNAL("PrepareForShutdown", "b", 0),
1969 SD_BUS_SIGNAL("PrepareForSleep", "b", 0),
1970
1971 SD_BUS_VTABLE_END
1972};
3f49d45a 1973
99e7e392
DH		 1974static int session_jobs_reply(Session *s, const char *unit, const char *result) {
1975 int r = 0;
1976
1977 assert(s);
1978 assert(unit);
1979
1980 if (!s->started)
1981 return r;
1982
1983 if (streq(result, "done"))
1984 r = session_send_create_reply(s, NULL);
1985 else {
1986 _cleanup_bus_error_free_ sd_bus_error e = SD_BUS_ERROR_NULL;
1987
1988 sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
1989 r = session_send_create_reply(s, &e);
1990 }
1991
1992 return r;
1993}
1994
ebcf1f97 1995int match_job_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 1996 const char *path, *result, *unit;
1997 Manager *m = userdata;
1998 Session *session;
1999 uint32_t id;
2000 User *user;
2001 int r;
3f49d45a 2002
cc377381
LP		 2003 assert(bus);
2004 assert(message);
2005 assert(m);
3f49d45a 2006
cc377381
LP		 2007 r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
2008 if (r < 0) {
ebcf1f97
LP		 2009 bus_log_parse_error(r);
2010 return r;
cc377381 2011 }
3f49d45a 2012
cc377381
LP		 2013 if (m->action_job && streq(m->action_job, path)) {
2014 log_info("Operation finished.");
3f49d45a 2015
cc377381
LP		 2016 /* Tell people that they now may take a lock again */
2017 send_prepare_for(m, m->action_what, false);
3f49d45a 2018
cc377381
LP		 2019 free(m->action_job);
2020 m->action_job = NULL;
2021 m->action_unit = NULL;
2022 m->action_what = 0;
2023 return 0;
2024 }
3f49d45a 2025
cc377381
LP		 2026 session = hashmap_get(m->session_units, unit);
2027 if (session) {
3f49d45a 2028
cc377381
LP		 2029 if (streq_ptr(path, session->scope_job)) {
2030 free(session->scope_job);
2031 session->scope_job = NULL;
3f49d45a
LP		 2032 }
2033
99e7e392 2034 session_jobs_reply(session, unit, result);
3f49d45a 2035
99e7e392 2036 session_save(session);
cc377381
LP		 2037 session_add_to_gc_queue(session);
2038 }
3f49d45a 2039
cc377381
LP		 2040 user = hashmap_get(m->user_units, unit);
2041 if (user) {
3f49d45a 2042
cc377381
LP		 2043 if (streq_ptr(path, user->service_job)) {
2044 free(user->service_job);
2045 user->service_job = NULL;
3f49d45a
LP		 2046 }
2047
cc377381
LP		 2048 if (streq_ptr(path, user->slice_job)) {
2049 free(user->slice_job);
2050 user->slice_job = NULL;
2051 }
3f49d45a 2052
dd9b67aa 2053 LIST_FOREACH(sessions_by_user, session, user->sessions) {
99e7e392 2054 session_jobs_reply(session, unit, result);
dd9b67aa
LP		 2055 }
2056
cc377381
LP		 2057 user_save(user);
2058 user_add_to_gc_queue(user);
3f49d45a
LP		 2059 }
2060
cc377381 2061 return 0;
3f49d45a
LP		 2062}
2063
ebcf1f97 2064int match_unit_removed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381 2065 const char *path, *unit;
1713813d 2066 Manager *m = userdata;
cc377381
LP		 2067 Session *session;
2068 User *user;
2069 int r;
1713813d 2070
cc377381 2071 assert(bus);
1713813d 2072 assert(message);
cc377381 2073 assert(m);
1713813d 2074
cc377381
LP		 2075 r = sd_bus_message_read(message, "so", &unit, &path);
2076 if (r < 0) {
ebcf1f97
LP		 2077 bus_log_parse_error(r);
2078 return r;
cc377381 2079 }
fb6becb4 2080
cc377381
LP		 2081 session = hashmap_get(m->session_units, unit);
2082 if (session)
2083 session_add_to_gc_queue(session);
fb6becb4 2084
cc377381
LP		 2085 user = hashmap_get(m->user_units, unit);
2086 if (user)
2087 user_add_to_gc_queue(user);
fb6becb4 2088
cc377381
LP		 2089 return 0;
2090}
fb6becb4 2091
ebcf1f97 2092int match_properties_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 2093 _cleanup_free_ char *unit = NULL;
2094 Manager *m = userdata;
2095 const char *path;
2096 Session *session;
2097 User *user;
ebcf1f97 2098 int r;
fb6becb4 2099
cc377381
LP		 2100 assert(bus);
2101 assert(message);
2102 assert(m);
fb6becb4 2103
cc377381
LP		 2104 path = sd_bus_message_get_path(message);
2105 if (!path)
2106 return 0;
fb6becb4 2107
ebcf1f97
LP		 2108 r = unit_name_from_dbus_path(path, &unit);
2109 if (r < 0)
a87105a3
ZJS		 2110 /* quietly ignore non-units paths */
2111 return r == -EINVAL ? 0 : r;
fb6becb4 2112
cc377381
LP		 2113 session = hashmap_get(m->session_units, unit);
2114 if (session)
2115 session_add_to_gc_queue(session);
fb6becb4 2116
cc377381
LP		 2117 user = hashmap_get(m->user_units, unit);
2118 if (user)
2119 user_add_to_gc_queue(user);
fb6becb4 2120
cc377381
LP		 2121 return 0;
2122}
6fa48533 2123
ebcf1f97 2124int match_reloading(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 2125 Manager *m = userdata;
2126 Session *session;
2127 Iterator i;
2128 int b, r;
943aca8e 2129
cc377381 2130 assert(bus);
943aca8e 2131
cc377381
LP		 2132 r = sd_bus_message_read(message, "b", &b);
2133 if (r < 0) {
ebcf1f97
LP		 2134 bus_log_parse_error(r);
2135 return r;
cc377381 2136 }
943aca8e 2137
cc377381
LP		 2138 if (b)
2139 return 0;
943aca8e 2140
cc377381
LP		 2141 /* systemd finished reloading, let's recheck all our sessions */
2142 log_debug("System manager has been reloaded, rechecking sessions...");
6797c324 2143
cc377381
LP		 2144 HASHMAP_FOREACH(session, m->sessions, i)
2145 session_add_to_gc_queue(session);
6797c324 2146
cc377381
LP		 2147 return 0;
2148}
943aca8e 2149
ebcf1f97 2150int match_name_owner_changed(sd_bus *bus, sd_bus_message *message, void *userdata, sd_bus_error *error) {
cc377381
LP		 2151 const char *name, *old, *new;
2152 Manager *m = userdata;
2153 Session *session;
2154 Iterator i;
2155 int r;
943aca8e 2156
6797c324 2157
cc377381 2158 char *key;
e8b212fe 2159
cc377381
LP		 2160 r = sd_bus_message_read(message, "sss", &name, &old, &new);
2161 if (r < 0) {
ebcf1f97
LP		 2162 bus_log_parse_error(r);
2163 return r;
cc377381 2164 }
e8b212fe 2165
cc377381
LP		 2166 if (isempty(old) || !isempty(new))
2167 return 0;
e8b212fe 2168
cc377381
LP		 2169 key = set_remove(m->busnames, (char*) old);
2170 if (!key)
2171 return 0;
ae5e06bd 2172
cc377381 2173 /* Drop all controllers owned by this name */
ae5e06bd 2174
cc377381 2175 free(key);
1713813d 2176
cc377381
LP		 2177 HASHMAP_FOREACH(session, m->sessions, i)
2178 if (session_is_controller(session, old))
2179 session_drop_controller(session);
1713813d 2180
cc377381 2181 return 0;
1713813d
LP		 2182}
2183
cc377381
LP		 2184int manager_send_changed(Manager *manager, const char *property, ...) {
2185 char **l;
9418f147
LP		 2186
2187 assert(manager);
2188
cc377381 2189 l = strv_from_stdarg_alloca(property);
9418f147 2190
cc377381
LP		 2191 return sd_bus_emit_properties_changed_strv(
2192 manager->bus,
2193 "/org/freedesktop/login1",
2194 "org.freedesktop.login1.Manager",
2195 l);
9418f147 2196}
eecd1362 2197
d889a206 2198int manager_dispatch_delayed(Manager *manager) {
cc377381 2199 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
85a428c6 2200 Inhibitor *offending = NULL;
eecd1362
LP		 2201 int r;
2202
2203 assert(manager);
2204
84286536 2205 if (manager->action_what == 0 || manager->action_job)
eecd1362
LP		 2206 return 0;
2207
2208 /* Continue delay? */
85a428c6
LP		 2209 if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
2210 _cleanup_free_ char *comm = NULL, *u = NULL;
2211
2212 get_process_comm(offending->pid, &comm);
2213 u = uid_to_name(offending->uid);
eecd1362 2214
314b4b0a
LP		 2215 if (manager->action_timestamp + manager->inhibit_delay_max > now(CLOCK_MONOTONIC))
2216 return 0;
af9792ac 2217
85a428c6
LP		 2218 log_info("Delay lock is active (UID %lu/%s, PID %lu/%s) but inhibitor timeout is reached.",
2219 (unsigned long) offending->uid, strna(u),
2220 (unsigned long) offending->pid, strna(comm));
314b4b0a 2221 }
eecd1362 2222
314b4b0a 2223 /* Actually do the operation */
314b4b0a 2224 r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error);
eecd1362 2225 if (r < 0) {
cc377381 2226 log_warning("Failed to send delayed message: %s", bus_error_message(&error, r));
314b4b0a
LP		 2227
2228 manager->action_unit = NULL;
2229 manager->action_what = 0;
eecd1362
LP		 2230 return r;
2231 }
2232
eecd1362
LP		 2233 return 1;
2234}
fb6becb4
LP		 2235
2236int manager_start_scope(
2237 Manager *manager,
2238 const char *scope,
2239 pid_t pid,
2240 const char *slice,
2241 const char *description,
ba4c5d93 2242 const char *after, const char *after2,
cc377381 2243 sd_bus_error *error,
fb6becb4
LP		 2244 char **job) {
2245
cc377381
LP		 2246 _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL;
2247 int r;
fb6becb4
LP		 2248
2249 assert(manager);
2250 assert(scope);
2251 assert(pid > 1);
2252
cc377381
LP		 2253 r = sd_bus_message_new_method_call(
2254 manager->bus,
151b9b96 2255 &m,
fb6becb4
LP		 2256 "org.freedesktop.systemd1",
2257 "/org/freedesktop/systemd1",
2258 "org.freedesktop.systemd1.Manager",
151b9b96 2259 "StartTransientUnit");
cc377381
LP		 2260 if (r < 0)
2261 return r;
fb6becb4 2262
cc377381
LP		 2263 r = sd_bus_message_append(m, "ss", strempty(scope), "fail");
2264 if (r < 0)
2265 return r;
fb6becb4 2266
cc377381
LP		 2267 r = sd_bus_message_open_container(m, 'a', "(sv)");
2268 if (r < 0)
2269 return r;
fb6becb4
LP		 2270
2271 if (!isempty(slice)) {
cc377381
LP		 2272 r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
2273 if (r < 0)
2274 return r;
fb6becb4
LP		 2275 }
2276
2277 if (!isempty(description)) {
cc377381
LP		 2278 r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
2279 if (r < 0)
2280 return r;
fb6becb4
LP		 2281 }
2282
ba4c5d93 2283 if (!isempty(after)) {
cc377381
LP		 2284 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
2285 if (r < 0)
2286 return r;
7fb3ee51
LP		 2287 }
2288
ba4c5d93
LP		 2289 if (!isempty(after2)) {
2290 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
2291 if (r < 0)
2292 return r;
2293 }
2294
fb6becb4
LP		 2295 /* cgroup empty notification is not available in containers
2296 * currently. To make this less problematic, let's shorten the
2297 * stop timeout for sessions, so that we don't wait
2298 * forever. */
2299
743e8945
LP		 2300 /* Make sure that the session shells are terminated with
2301 * SIGHUP since bash and friends tend to ignore SIGTERM */
cc377381
LP		 2302 r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true);
2303 if (r < 0)
2304 return r;
2305
2306 r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
2307 if (r < 0)
2308 return r;
2309
2310 r = sd_bus_message_close_container(m);
2311 if (r < 0)
2312 return r;
86b8d289
LP		 2313
2314 r = sd_bus_message_append(m, "a(sa(sv))", 0);
2315 if (r < 0)
2316 return r;
cc377381 2317
c49b30a2 2318 r = sd_bus_call(manager->bus, m, 0, error, &reply);
cc377381
LP		 2319 if (r < 0)
2320 return r;
fb6becb4
LP		 2321
2322 if (job) {
2323 const char *j;
2324 char *copy;
2325
cc377381
LP		 2326 r = sd_bus_message_read(reply, "o", &j);
2327 if (r < 0)
2328 return r;
fb6becb4
LP		 2329
2330 copy = strdup(j);
2331 if (!copy)
2332 return -ENOMEM;
2333
2334 *job = copy;
2335 }
2336
cc377381 2337 return 1;
fb6becb4
LP		 2338}
2339
cc377381
LP		 2340int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2341 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
fb6becb4
LP		 2342 int r;
2343
2344 assert(manager);
2345 assert(unit);
2346
cc377381 2347 r = sd_bus_call_method(
fb6becb4
LP		 2348 manager->bus,
2349 "org.freedesktop.systemd1",
2350 "/org/freedesktop/systemd1",
2351 "org.freedesktop.systemd1.Manager",
2352 "StartUnit",
fb6becb4 2353 error,
cc377381
LP		 2354 &reply,
2355 "ss", unit, "fail");
2356 if (r < 0)
fb6becb4 2357 return r;
fb6becb4
LP		 2358
2359 if (job) {
2360 const char *j;
2361 char *copy;
2362
cc377381
LP		 2363 r = sd_bus_message_read(reply, "o", &j);
2364 if (r < 0)
2365 return r;
fb6becb4
LP		 2366
2367 copy = strdup(j);
2368 if (!copy)
2369 return -ENOMEM;
2370
2371 *job = copy;
2372 }
2373
cc377381 2374 return 1;
fb6becb4
LP		 2375}
2376
cc377381
LP		 2377int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
2378 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
fb6becb4
LP		 2379 int r;
2380
2381 assert(manager);
2382 assert(unit);
2383
cc377381 2384 r = sd_bus_call_method(
fb6becb4
LP		 2385 manager->bus,
2386 "org.freedesktop.systemd1",
2387 "/org/freedesktop/systemd1",
2388 "org.freedesktop.systemd1.Manager",
2389 "StopUnit",
fb6becb4 2390 error,
cc377381
LP		 2391 &reply,
2392 "ss", unit, "fail");
fb6becb4 2393 if (r < 0) {
cc377381
LP		 2394 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
2395 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) {
6797c324
LP		 2396
2397 if (job)
2398 *job = NULL;
2399
cc377381 2400 sd_bus_error_free(error);
6797c324
LP		 2401 return 0;
2402 }
2403
fb6becb4
LP		 2404 return r;
2405 }
2406
2407 if (job) {
2408 const char *j;
2409 char *copy;
2410
cc377381
LP		 2411 r = sd_bus_message_read(reply, "o", &j);
2412 if (r < 0)
2413 return r;
fb6becb4
LP		 2414
2415 copy = strdup(j);
2416 if (!copy)
2417 return -ENOMEM;
2418
2419 *job = copy;
2420 }
2421
6797c324 2422 return 1;
fb6becb4
LP		 2423}
2424
5f41d1f1 2425int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) {
5f41d1f1
LP		 2426 _cleanup_free_ char *path = NULL;
2427 int r;
2428
2429 assert(manager);
2430 assert(scope);
2431
2432 path = unit_dbus_path_from_name(scope);
2433 if (!path)
2434 return -ENOMEM;
2435
2436 r = sd_bus_call_method(
2437 manager->bus,
2438 "org.freedesktop.systemd1",
2439 path,
2440 "org.freedesktop.systemd1.Scope",
2441 "Abandon",
2442 error,
2443 NULL,
2444 NULL);
2445 if (r < 0) {
2446 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
4e2f8d27
LP		 2447 sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) ||
2448 sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) {
5f41d1f1
LP		 2449 sd_bus_error_free(error);
2450 return 0;
2451 }
2452
2453 return r;
2454 }
2455
2456 return 1;
2457}
2458
cc377381 2459int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
fb6becb4
LP		 2460 assert(manager);
2461 assert(unit);
2462
cc377381 2463 return sd_bus_call_method(
fb6becb4
LP		 2464 manager->bus,
2465 "org.freedesktop.systemd1",
2466 "/org/freedesktop/systemd1",
2467 "org.freedesktop.systemd1.Manager",
2468 "KillUnit",
fb6becb4 2469 error,
cc377381
LP		 2470 NULL,
2471 "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
fb6becb4
LP		 2472}
2473
2474int manager_unit_is_active(Manager *manager, const char *unit) {
cc377381
LP		 2475 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2476 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
fb6becb4 2477 _cleanup_free_ char *path = NULL;
fb6becb4 2478 const char *state;
fb6becb4
LP		 2479 int r;
2480
2481 assert(manager);
2482 assert(unit);
2483
fb6becb4
LP		 2484 path = unit_dbus_path_from_name(unit);
2485 if (!path)
2486 return -ENOMEM;
2487
cc377381 2488 r = sd_bus_get_property(
fb6becb4
LP		 2489 manager->bus,
2490 "org.freedesktop.systemd1",
2491 path,
cc377381
LP		 2492 "org.freedesktop.systemd1.Unit",
2493 "ActiveState",
fb6becb4 2494 &error,
cc377381
LP		 2495 &reply,
2496 "s");
fb6becb4 2497 if (r < 0) {
cc377381
LP		 2498 /* systemd might have droppped off momentarily, let's
2499 * not make this an error */
2500 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2501 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
6797c324 2502 return true;
6797c324 2503
cc377381
LP		 2504 /* If the unit is already unloaded then it's not
2505 * active */
2506 if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) ||
2507 sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED))
6797c324 2508 return false;
6797c324 2509
fb6becb4
LP		 2510 return r;
2511 }
2512
cc377381
LP		 2513 r = sd_bus_message_read(reply, "s", &state);
2514 if (r < 0)
fb6becb4 2515 return -EINVAL;
fb6becb4 2516
cc377381
LP		 2517 return !streq(state, "inactive") && !streq(state, "failed");
2518}
2519
2520int manager_job_is_active(Manager *manager, const char *path) {
2521 _cleanup_bus_error_free_ sd_bus_error error = SD_BUS_ERROR_NULL;
2522 _cleanup_bus_message_unref_ sd_bus_message *reply = NULL;
2523 int r;
2524
2525 assert(manager);
2526 assert(path);
2527
2528 r = sd_bus_get_property(
2529 manager->bus,
2530 "org.freedesktop.systemd1",
2531 path,
2532 "org.freedesktop.systemd1.Job",
2533 "State",
2534 &error,
2535 &reply,
2536 "s");
2537 if (r < 0) {
2538 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
2539 sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
2540 return true;
2541
2542 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT))
2543 return false;
2544
2545 return r;
fb6becb4
LP		 2546 }
2547
cc377381
LP		 2548 /* We don't actually care about the state really. The fact
2549 * that we could read the job state is enough for us */
fb6becb4 2550
cc377381 2551 return true;
fb6becb4 2552}
Unnamed repository; edit this file 'description' to name the repository.