src/login/logind-dbus.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 /***
   3   This file is part of systemd.
   4
   5   Copyright 2011 Lennart Poettering
   6
   7   systemd is free software; you can redistribute it and/or modify it
   8   under the terms of the GNU Lesser General Public License as published by
   9   the Free Software Foundation; either version 2.1 of the License, or
  10   (at your option) any later version.
  11
  12   systemd is distributed in the hope that it will be useful, but
  13   WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  15   Lesser General Public License for more details.
  16
  17   You should have received a copy of the GNU Lesser General Public License
  18   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  19 ***/
  20
  21 #include <errno.h>
  22 #include <pwd.h>
  23 #include <string.h>
  24 #include <unistd.h>
  25
  26 #include "sd-messages.h"
  27
  28 #include "alloc-util.h"
  29 #include "audit-util.h"
  30 #include "bus-common-errors.h"
  31 #include "bus-error.h"
  32 #include "bus-util.h"
  33 #include "dirent-util.h"
  34 //#include "efivars.h"
  35 #include "escape.h"
  36 #include "fd-util.h"
  37 #include "fileio-label.h"
  38 #include "format-util.h"
  39 #include "fs-util.h"
  40 #include "logind.h"
  41 #include "mkdir.h"
  42 #include "path-util.h"
  43 #include "process-util.h"
  44 //#include "cgroup-util.h"
  45 #include "selinux-util.h"
  46 #include "sleep-config.h"
  47 //#include "special.h"
  48 #include "strv.h"
  49 #include "terminal-util.h"
  50 #include "udev-util.h"
  51 #include "unit-name.h"
  52 #include "user-util.h"
  53 #include "utmp-wtmp.h"
  54
  55 /// Additional includes needed by elogind
  56 #include "elogind-dbus.h"
  57
  58 static int get_sender_session(Manager *m, sd_bus_message *message, sd_bus_error *error, Session **ret) {
  59
  60         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
  61         const char *name;
  62         Session *session;
  63         int r;
  64
  65         /* Get client login session.  This is not what you are looking for these days,
  66          * as apps may instead belong to a user service unit.  This includes terminal
  67          * emulators and hence command-line apps. */
  68         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_SESSION|SD_BUS_CREDS_AUGMENT, &creds);
  69         if (r < 0)
  70                 return r;
  71
  72         r = sd_bus_creds_get_session(creds, &name);
  73         if (r == -ENXIO)
  74                 goto err_no_session;
  75         if (r < 0)
  76                 return r;
  77
  78         session = hashmap_get(m->sessions, name);
  79         if (!session)
  80                 goto err_no_session;
  81
  82         *ret = session;
  83         return 0;
  84
  85 err_no_session:
  86         return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID,
  87                                  "Caller does not belong to any known session");
  88 }
  89
  90 int manager_get_session_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Session **ret) {
  91         Session *session;
  92
  93         assert(m);
  94         assert(message);
  95         assert(ret);
  96
  97         if (isempty(name))
  98                 return get_sender_session(m, message, error, ret);
  99
 100         session = hashmap_get(m->sessions, name);
 101         if (!session)
 102                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SESSION, "No session '%s' known", name);
 103
 104         *ret = session;
 105         return 0;
 106 }
 107
 108 static int get_sender_user(Manager *m, sd_bus_message *message, sd_bus_error *error, User **ret) {
 109
 110         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 111         uid_t uid;
 112         User *user;
 113         int r;
 114
 115         /* Note that we get the owner UID of the session, not the actual client UID here! */
 116         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
 117         if (r < 0)
 118                 return r;
 119
 120         r = sd_bus_creds_get_owner_uid(creds, &uid);
 121         if (r == -ENXIO)
 122                 goto err_no_user;
 123         if (r < 0)
 124                 return r;
 125
 126         user = hashmap_get(m->users, UID_TO_PTR(uid));
 127         if (!user)
 128                 goto err_no_user;
 129
 130         *ret = user;
 131         return 0;
 132
 133 err_no_user:
 134         return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID, "Caller does not belong to any logged in user or lingering user");
 135 }
 136
 137 int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret) {
 138         User *user;
 139
 140         assert(m);
 141         assert(message);
 142         assert(ret);
 143
 144         if (!uid_is_valid(uid))
 145                 return get_sender_user(m, message, error, ret);
 146
 147         user = hashmap_get(m->users, UID_TO_PTR(uid));
 148         if (!user)
 149                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_USER, "User ID "UID_FMT" is not logged in or lingering", uid);
 150
 151         *ret = user;
 152         return 0;
 153 }
 154
 155 int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret) {
 156         Seat *seat;
 157         int r;
 158
 159         assert(m);
 160         assert(message);
 161         assert(ret);
 162
 163         if (isempty(name)) {
 164                 Session *session;
 165
 166                 r = manager_get_session_from_creds(m, message, NULL, error, &session);
 167                 if (r < 0)
 168                         return r;
 169
 170                 seat = session->seat;
 171                 if (!seat)
 172                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "Session has no seat.");
 173         } else {
 174                 seat = hashmap_get(m->seats, name);
 175                 if (!seat)
 176                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", name);
 177         }
 178
 179         *ret = seat;
 180         return 0;
 181 }
 182
 183 static int property_get_idle_hint(
 184                 sd_bus *bus,
 185                 const char *path,
 186                 const char *interface,
 187                 const char *property,
 188                 sd_bus_message *reply,
 189                 void *userdata,
 190                 sd_bus_error *error) {
 191
 192         Manager *m = userdata;
 193
 194         assert(bus);
 195         assert(reply);
 196         assert(m);
 197
 198         return sd_bus_message_append(reply, "b", manager_get_idle_hint(m, NULL) > 0);
 199 }
 200
 201 static int property_get_idle_since_hint(
 202                 sd_bus *bus,
 203                 const char *path,
 204                 const char *interface,
 205                 const char *property,
 206                 sd_bus_message *reply,
 207                 void *userdata,
 208                 sd_bus_error *error) {
 209
 210         Manager *m = userdata;
 211         dual_timestamp t = DUAL_TIMESTAMP_NULL;
 212
 213         assert(bus);
 214         assert(reply);
 215         assert(m);
 216
 217         manager_get_idle_hint(m, &t);
 218
 219         return sd_bus_message_append(reply, "t", streq(property, "IdleSinceHint") ? t.realtime : t.monotonic);
 220 }
 221
 222 static int property_get_inhibited(
 223                 sd_bus *bus,
 224                 const char *path,
 225                 const char *interface,
 226                 const char *property,
 227                 sd_bus_message *reply,
 228                 void *userdata,
 229                 sd_bus_error *error) {
 230
 231         Manager *m = userdata;
 232         InhibitWhat w;
 233
 234         assert(bus);
 235         assert(reply);
 236         assert(m);
 237
 238         w = manager_inhibit_what(m, streq(property, "BlockInhibited") ? INHIBIT_BLOCK : INHIBIT_DELAY);
 239
 240         return sd_bus_message_append(reply, "s", inhibit_what_to_string(w));
 241 }
 242
 243 static int property_get_preparing(
 244                 sd_bus *bus,
 245                 const char *path,
 246                 const char *interface,
 247                 const char *property,
 248                 sd_bus_message *reply,
 249                 void *userdata,
 250                 sd_bus_error *error) {
 251
 252         Manager *m = userdata;
 253         bool b;
 254
 255         assert(bus);
 256         assert(reply);
 257         assert(m);
 258
 259         if (streq(property, "PreparingForShutdown"))
 260                 b = !!(m->action_what & INHIBIT_SHUTDOWN);
 261         else
 262                 b = !!(m->action_what & INHIBIT_SLEEP);
 263
 264         return sd_bus_message_append(reply, "b", b);
 265 }
 266
 267 static int property_get_scheduled_shutdown(
 268                 sd_bus *bus,
 269                 const char *path,
 270                 const char *interface,
 271                 const char *property,
 272                 sd_bus_message *reply,
 273                 void *userdata,
 274                 sd_bus_error *error) {
 275
 276         Manager *m = userdata;
 277         int r;
 278
 279         assert(bus);
 280         assert(reply);
 281         assert(m);
 282
 283         r = sd_bus_message_open_container(reply, 'r', "st");
 284         if (r < 0)
 285                 return r;
 286
 287         r = sd_bus_message_append(reply, "st", m->scheduled_shutdown_type, m->scheduled_shutdown_timeout);
 288         if (r < 0)
 289                 return r;
 290
 291         return sd_bus_message_close_container(reply);
 292 }
 293
 294 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_handle_action, handle_action, HandleAction);
 295
 296 static int property_get_docked(
 297                 sd_bus *bus,
 298                 const char *path,
 299                 const char *interface,
 300                 const char *property,
 301                 sd_bus_message *reply,
 302                 void *userdata,
 303                 sd_bus_error *error) {
 304
 305         Manager *m = userdata;
 306
 307         assert(bus);
 308         assert(reply);
 309         assert(m);
 310
 311         return sd_bus_message_append(reply, "b", manager_is_docked_or_external_displays(m));
 312 }
 313
 314 static int property_get_current_sessions(
 315                 sd_bus *bus,
 316                 const char *path,
 317                 const char *interface,
 318                 const char *property,
 319                 sd_bus_message *reply,
 320                 void *userdata,
 321                 sd_bus_error *error) {
 322
 323         Manager *m = userdata;
 324
 325         assert(bus);
 326         assert(reply);
 327         assert(m);
 328
 329         return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->sessions));
 330 }
 331
 332 static int property_get_current_inhibitors(
 333                 sd_bus *bus,
 334                 const char *path,
 335                 const char *interface,
 336                 const char *property,
 337                 sd_bus_message *reply,
 338                 void *userdata,
 339                 sd_bus_error *error) {
 340
 341         Manager *m = userdata;
 342
 343         assert(bus);
 344         assert(reply);
 345         assert(m);
 346
 347         return sd_bus_message_append(reply, "t", (uint64_t) hashmap_size(m->inhibitors));
 348 }
 349
 350 static int method_get_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 351         _cleanup_free_ char *p = NULL;
 352         Manager *m = userdata;
 353         const char *name;
 354         Session *session;
 355         int r;
 356
 357         assert(message);
 358         assert(m);
 359
 360         r = sd_bus_message_read(message, "s", &name);
 361         if (r < 0)
 362                 return r;
 363
 364         r = manager_get_session_from_creds(m, message, name, error, &session);
 365         if (r < 0)
 366                 return r;
 367
 368         p = session_bus_path(session);
 369         if (!p)
 370                 return -ENOMEM;
 371
 372         return sd_bus_reply_method_return(message, "o", p);
 373 }
 374
 375 /* Get login session of a process.  This is not what you are looking for these days,
 376  * as apps may instead belong to a user service unit.  This includes terminal
 377  * emulators and hence command-line apps. */
 378 static int method_get_session_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 379         _cleanup_free_ char *p = NULL;
 380         Session *session = NULL;
 381         Manager *m = userdata;
 382         pid_t pid;
 383         int r;
 384
 385         assert(message);
 386         assert(m);
 387
 388         assert_cc(sizeof(pid_t) == sizeof(uint32_t));
 389
 390         r = sd_bus_message_read(message, "u", &pid);
 391         if (r < 0)
 392                 return r;
 393         if (pid < 0)
 394                 return -EINVAL;
 395
 396         if (pid == 0) {
 397                 r = manager_get_session_from_creds(m, message, NULL, error, &session);
 398                 if (r < 0)
 399                         return r;
 400         } else {
 401                 r = manager_get_session_by_pid(m, pid, &session);
 402                 if (r < 0)
 403                         return r;
 404
 405                 if (!session)
 406                         return sd_bus_error_setf(error, BUS_ERROR_NO_SESSION_FOR_PID, "PID "PID_FMT" does not belong to any known session", pid);
 407         }
 408
 409         p = session_bus_path(session);
 410         if (!p)
 411                 return -ENOMEM;
 412
 413         return sd_bus_reply_method_return(message, "o", p);
 414 }
 415
 416 static int method_get_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 417         _cleanup_free_ char *p = NULL;
 418         Manager *m = userdata;
 419         uint32_t uid;
 420         User *user;
 421         int r;
 422
 423         assert(message);
 424         assert(m);
 425
 426         r = sd_bus_message_read(message, "u", &uid);
 427         if (r < 0)
 428                 return r;
 429
 430         r = manager_get_user_from_creds(m, message, uid, error, &user);
 431         if (r < 0)
 432                 return r;
 433
 434         p = user_bus_path(user);
 435         if (!p)
 436                 return -ENOMEM;
 437
 438         return sd_bus_reply_method_return(message, "o", p);
 439 }
 440
 441 static int method_get_user_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 442         _cleanup_free_ char *p = NULL;
 443         Manager *m = userdata;
 444         User *user = NULL;
 445         pid_t pid;
 446         int r;
 447
 448         assert(message);
 449         assert(m);
 450
 451         assert_cc(sizeof(pid_t) == sizeof(uint32_t));
 452
 453         r = sd_bus_message_read(message, "u", &pid);
 454         if (r < 0)
 455                 return r;
 456         if (pid < 0)
 457                 return -EINVAL;
 458
 459         if (pid == 0) {
 460                 r = manager_get_user_from_creds(m, message, UID_INVALID, error, &user);
 461                 if (r < 0)
 462                         return r;
 463         } else {
 464                 r = manager_get_user_by_pid(m, pid, &user);
 465                 if (r < 0)
 466                         return r;
 467                 if (!user)
 468                         return sd_bus_error_setf(error, BUS_ERROR_NO_USER_FOR_PID,
 469                                                  "PID "PID_FMT" does not belong to any logged in user or lingering user",
 470                                                  pid);
 471         }
 472
 473         p = user_bus_path(user);
 474         if (!p)
 475                 return -ENOMEM;
 476
 477         return sd_bus_reply_method_return(message, "o", p);
 478 }
 479
 480 static int method_get_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 481         _cleanup_free_ char *p = NULL;
 482         Manager *m = userdata;
 483         const char *name;
 484         Seat *seat;
 485         int r;
 486
 487         assert(message);
 488         assert(m);
 489
 490         r = sd_bus_message_read(message, "s", &name);
 491         if (r < 0)
 492                 return r;
 493
 494         r = manager_get_seat_from_creds(m, message, name, error, &seat);
 495         if (r < 0)
 496                 return r;
 497
 498         p = seat_bus_path(seat);
 499         if (!p)
 500                 return -ENOMEM;
 501
 502         return sd_bus_reply_method_return(message, "o", p);
 503 }
 504
 505 static int method_list_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 506         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 507         Manager *m = userdata;
 508         Session *session;
 509         Iterator i;
 510         int r;
 511
 512         assert(message);
 513         assert(m);
 514
 515         r = sd_bus_message_new_method_return(message, &reply);
 516         if (r < 0)
 517                 return r;
 518
 519         r = sd_bus_message_open_container(reply, 'a', "(susso)");
 520         if (r < 0)
 521                 return r;
 522
 523         HASHMAP_FOREACH(session, m->sessions, i) {
 524                 _cleanup_free_ char *p = NULL;
 525
 526                 p = session_bus_path(session);
 527                 if (!p)
 528                         return -ENOMEM;
 529
 530                 r = sd_bus_message_append(reply, "(susso)",
 531                                           session->id,
 532                                           (uint32_t) session->user->uid,
 533                                           session->user->name,
 534                                           session->seat ? session->seat->id : "",
 535                                           p);
 536                 if (r < 0)
 537                         return r;
 538         }
 539
 540         r = sd_bus_message_close_container(reply);
 541         if (r < 0)
 542                 return r;
 543
 544         return sd_bus_send(NULL, reply, NULL);
 545 }
 546
 547 static int method_list_users(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 548         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 549         Manager *m = userdata;
 550         User *user;
 551         Iterator i;
 552         int r;
 553
 554         assert(message);
 555         assert(m);
 556
 557         r = sd_bus_message_new_method_return(message, &reply);
 558         if (r < 0)
 559                 return r;
 560
 561         r = sd_bus_message_open_container(reply, 'a', "(uso)");
 562         if (r < 0)
 563                 return r;
 564
 565         HASHMAP_FOREACH(user, m->users, i) {
 566                 _cleanup_free_ char *p = NULL;
 567
 568                 p = user_bus_path(user);
 569                 if (!p)
 570                         return -ENOMEM;
 571
 572                 r = sd_bus_message_append(reply, "(uso)",
 573                                           (uint32_t) user->uid,
 574                                           user->name,
 575                                           p);
 576                 if (r < 0)
 577                         return r;
 578         }
 579
 580         r = sd_bus_message_close_container(reply);
 581         if (r < 0)
 582                 return r;
 583
 584         return sd_bus_send(NULL, reply, NULL);
 585 }
 586
 587 static int method_list_seats(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 588         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 589         Manager *m = userdata;
 590         Seat *seat;
 591         Iterator i;
 592         int r;
 593
 594         assert(message);
 595         assert(m);
 596
 597         r = sd_bus_message_new_method_return(message, &reply);
 598         if (r < 0)
 599                 return r;
 600
 601         r = sd_bus_message_open_container(reply, 'a', "(so)");
 602         if (r < 0)
 603                 return r;
 604
 605         HASHMAP_FOREACH(seat, m->seats, i) {
 606                 _cleanup_free_ char *p = NULL;
 607
 608                 p = seat_bus_path(seat);
 609                 if (!p)
 610                         return -ENOMEM;
 611
 612                 r = sd_bus_message_append(reply, "(so)", seat->id, p);
 613                 if (r < 0)
 614                         return r;
 615         }
 616
 617         r = sd_bus_message_close_container(reply);
 618         if (r < 0)
 619                 return r;
 620
 621         return sd_bus_send(NULL, reply, NULL);
 622 }
 623
 624 static int method_list_inhibitors(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 625         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 626         Manager *m = userdata;
 627         Inhibitor *inhibitor;
 628         Iterator i;
 629         int r;
 630
 631         assert(message);
 632         assert(m);
 633
 634         r = sd_bus_message_new_method_return(message, &reply);
 635         if (r < 0)
 636                 return r;
 637
 638         r = sd_bus_message_open_container(reply, 'a', "(ssssuu)");
 639         if (r < 0)
 640                 return r;
 641
 642         HASHMAP_FOREACH(inhibitor, m->inhibitors, i) {
 643
 644                 r = sd_bus_message_append(reply, "(ssssuu)",
 645                                           strempty(inhibit_what_to_string(inhibitor->what)),
 646                                           strempty(inhibitor->who),
 647                                           strempty(inhibitor->why),
 648                                           strempty(inhibit_mode_to_string(inhibitor->mode)),
 649                                           (uint32_t) inhibitor->uid,
 650                                           (uint32_t) inhibitor->pid);
 651                 if (r < 0)
 652                         return r;
 653         }
 654
 655         r = sd_bus_message_close_container(reply);
 656         if (r < 0)
 657                 return r;
 658
 659         return sd_bus_send(NULL, reply, NULL);
 660 }
 661
 662 static int method_create_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 663         const char *service, *type, *class, *cseat, *tty, *display, *remote_user, *remote_host, *desktop;
 664         uint32_t audit_id = 0;
 665         _cleanup_free_ char *unit = NULL;
 666         _cleanup_free_ char *id = NULL;
 667         Session *session = NULL;
 668         Manager *m = userdata;
 669         User *user = NULL;
 670         Seat *seat = NULL;
 671         pid_t leader;
 672         uid_t uid;
 673         int remote;
 674         uint32_t vtnr = 0;
 675         SessionType t;
 676         SessionClass c;
 677         int r;
 678
 679         assert(message);
 680         assert(m);
 681
 682         assert_cc(sizeof(pid_t) == sizeof(uint32_t));
 683         assert_cc(sizeof(uid_t) == sizeof(uint32_t));
 684
 685         r = sd_bus_message_read(message, "uusssssussbss", &uid, &leader, &service, &type, &class, &desktop, &cseat, &vtnr, &tty, &display, &remote, &remote_user, &remote_host);
 686         if (r < 0)
 687                 return r;
 688
 689         if (!uid_is_valid(uid))
 690                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid UID");
 691         if (leader < 0 || leader == 1)
 692                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid leader PID");
 693
 694         if (isempty(type))
 695                 t = _SESSION_TYPE_INVALID;
 696         else {
 697                 t = session_type_from_string(type);
 698                 if (t < 0)
 699                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session type %s", type);
 700         }
 701
 702         if (isempty(class))
 703                 c = _SESSION_CLASS_INVALID;
 704         else {
 705                 c = session_class_from_string(class);
 706                 if (c < 0)
 707                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid session class %s", class);
 708         }
 709
 710         if (isempty(desktop))
 711                 desktop = NULL;
 712         else {
 713                 if (!string_is_safe(desktop))
 714                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid desktop string %s", desktop);
 715         }
 716
 717         if (isempty(cseat))
 718                 seat = NULL;
 719         else {
 720                 seat = hashmap_get(m->seats, cseat);
 721                 if (!seat)
 722                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_SEAT, "No seat '%s' known", cseat);
 723         }
 724
 725         if (tty_is_vc(tty)) {
 726                 int v;
 727
 728                 if (!seat)
 729                         seat = m->seat0;
 730                 else if (seat != m->seat0)
 731                         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);
 732
 733                 v = vtnr_from_tty(tty);
 734                 if (v <= 0)
 735                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Cannot determine VT number from virtual console TTY %s", tty);
 736
 737                 if (!vtnr)
 738                         vtnr = (uint32_t) v;
 739                 else if (vtnr != (uint32_t) v)
 740                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Specified TTY and VT number do not match");
 741
 742         } else if (tty_is_console(tty)) {
 743
 744                 if (!seat)
 745                         seat = m->seat0;
 746                 else if (seat != m->seat0)
 747                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but seat is not seat0");
 748
 749                 if (vtnr != 0)
 750                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Console TTY specified but VT number is not 0");
 751         }
 752
 753         if (seat) {
 754                 if (seat_has_vts(seat)) {
 755                         if (!vtnr || vtnr > 63)
 756                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "VT number out of range");
 757                 } else {
 758                         if (vtnr != 0)
 759                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat has no VTs but VT number not 0");
 760                 }
 761         }
 762
 763         r = sd_bus_message_enter_container(message, 'a', "(sv)");
 764         if (r < 0)
 765                 return r;
 766
 767         if (t == _SESSION_TYPE_INVALID) {
 768                 if (!isempty(display))
 769                         t = SESSION_X11;
 770                 else if (!isempty(tty))
 771                         t = SESSION_TTY;
 772                 else
 773                         t = SESSION_UNSPECIFIED;
 774         }
 775
 776         if (c == _SESSION_CLASS_INVALID) {
 777                 if (t == SESSION_UNSPECIFIED)
 778                         c = SESSION_BACKGROUND;
 779                 else
 780                         c = SESSION_USER;
 781         }
 782
 783         if (leader == 0) {
 784                 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 785
 786                 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
 787                 if (r < 0)
 788                         return r;
 789
 790                 r = sd_bus_creds_get_pid(creds, (pid_t*) &leader);
 791                 if (r < 0)
 792                         return r;
 793         }
 794
 795         /*
 796          * Check if we are already in a logind session.  Or if we are in user@.service
 797          * which is a special PAM session that avoids creating a logind session.
 798          */
 799         r = cg_pid_get_unit(leader, &unit);
 800         if (r < 0)
 801                 return r;
 802         if (hashmap_get(m->session_units, unit) ||
 803             hashmap_get(m->user_units, unit))
 804                 return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already running in a session");
 805
 806         /*
 807          * Old gdm and lightdm start the user-session on the same VT as
 808          * the greeter session. But they destroy the greeter session
 809          * after the user-session and want the user-session to take
 810          * over the VT. We need to support this for
 811          * backwards-compatibility, so make sure we allow new sessions
 812          * on a VT that a greeter is running on. Furthermore, to allow
 813          * re-logins, we have to allow a greeter to take over a used VT for
 814          * the exact same reasons.
 815          */
 816         if (c != SESSION_GREETER &&
 817             vtnr > 0 &&
 818             vtnr < m->seat0->position_count &&
 819             m->seat0->positions[vtnr] &&
 820             m->seat0->positions[vtnr]->class != SESSION_GREETER)
 821                 return sd_bus_error_setf(error, BUS_ERROR_SESSION_BUSY, "Already occupied by a session");
 822
 823         if (hashmap_size(m->sessions) >= m->sessions_max)
 824                 return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of sessions (%" PRIu64 ") reached, refusing further sessions.", m->sessions_max);
 825
 826         (void) audit_session_from_pid(leader, &audit_id);
 827         if (audit_session_is_valid(audit_id)) {
 828                 /* Keep our session IDs and the audit session IDs in sync */
 829
 830                 if (asprintf(&id, "%"PRIu32, audit_id) < 0)
 831                         return -ENOMEM;
 832
 833                 /* Wut? There's already a session by this name and we
 834                  * didn't find it above? Weird, then let's not trust
 835                  * the audit data and let's better register a new
 836                  * ID */
 837                 if (hashmap_get(m->sessions, id)) {
 838                         log_warning("Existing logind session ID %s used by new audit session, ignoring", id);
 839                         audit_id = AUDIT_SESSION_INVALID;
 840
 841                         id = mfree(id);
 842                 }
 843         }
 844
 845         if (!id) {
 846                 do {
 847                         id = mfree(id);
 848
 849                         if (asprintf(&id, "c%lu", ++m->session_counter) < 0)
 850                                 return -ENOMEM;
 851
 852                 } while (hashmap_get(m->sessions, id));
 853         }
 854
 855         r = manager_add_user_by_uid(m, uid, &user);
 856         if (r < 0)
 857                 goto fail;
 858
 859         r = manager_add_session(m, id, &session);
 860         if (r < 0)
 861                 goto fail;
 862
 863         session_set_user(session, user);
 864
 865         session->leader = leader;
 866         session->audit_id = audit_id;
 867         session->type = t;
 868         session->class = c;
 869         session->remote = remote;
 870         session->vtnr = vtnr;
 871
 872         if (!isempty(tty)) {
 873                 session->tty = strdup(tty);
 874                 if (!session->tty) {
 875                         r = -ENOMEM;
 876                         goto fail;
 877                 }
 878         }
 879
 880         if (!isempty(display)) {
 881                 session->display = strdup(display);
 882                 if (!session->display) {
 883                         r = -ENOMEM;
 884                         goto fail;
 885                 }
 886         }
 887
 888         if (!isempty(remote_user)) {
 889                 session->remote_user = strdup(remote_user);
 890                 if (!session->remote_user) {
 891                         r = -ENOMEM;
 892                         goto fail;
 893                 }
 894         }
 895
 896         if (!isempty(remote_host)) {
 897                 session->remote_host = strdup(remote_host);
 898                 if (!session->remote_host) {
 899                         r = -ENOMEM;
 900                         goto fail;
 901                 }
 902         }
 903
 904         if (!isempty(service)) {
 905                 session->service = strdup(service);
 906                 if (!session->service) {
 907                         r = -ENOMEM;
 908                         goto fail;
 909                 }
 910         }
 911
 912         if (!isempty(desktop)) {
 913                 session->desktop = strdup(desktop);
 914                 if (!session->desktop) {
 915                         r = -ENOMEM;
 916                         goto fail;
 917                 }
 918         }
 919
 920         if (seat) {
 921                 r = seat_attach_session(seat, session);
 922                 if (r < 0)
 923                         goto fail;
 924         }
 925
 926         r = session_start(session);
 927         if (r < 0)
 928                 goto fail;
 929
 930         session->create_message = sd_bus_message_ref(message);
 931
 932 #if 0 /// UNNEEDED by elogind
 933         /* Now, let's wait until the slice unit and stuff got
 934          * created. We send the reply back from
 935          * session_send_create_reply(). */
 936 #else
 937         /* We reply directly. */
 938
 939         r = session_send_create_reply(session, NULL);
 940         if (r < 0)
 941                 goto fail;
 942 #endif // 0
 943
 944         return 1;
 945
 946 fail:
 947         if (session)
 948                 session_add_to_gc_queue(session);
 949
 950         if (user)
 951                 user_add_to_gc_queue(user);
 952
 953         return r;
 954 }
 955
 956 static int method_release_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 957         Manager *m = userdata;
 958         Session *session;
 959         const char *name;
 960         int r;
 961
 962         assert(message);
 963         assert(m);
 964
 965         r = sd_bus_message_read(message, "s", &name);
 966         if (r < 0)
 967                 return r;
 968
 969         r = manager_get_session_from_creds(m, message, name, error, &session);
 970         if (r < 0)
 971                 return r;
 972
 973         r = session_release(session);
 974         if (r < 0)
 975                 return r;
 976
 977 #if 1 /// elogind must queue this session
 978         session_add_to_gc_queue(session);
 979 #endif // 1
 980         return sd_bus_reply_method_return(message, NULL);
 981 }
 982
 983 static int method_activate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 984         Manager *m = userdata;
 985         Session *session;
 986         const char *name;
 987         int r;
 988
 989         assert(message);
 990         assert(m);
 991
 992         r = sd_bus_message_read(message, "s", &name);
 993         if (r < 0)
 994                 return r;
 995
 996         r = manager_get_session_from_creds(m, message, name, error, &session);
 997         if (r < 0)
 998                 return r;
 999
1000         return bus_session_method_activate(message, session, error);
1001 }
1002
1003 static int method_activate_session_on_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1004         const char *session_name, *seat_name;
1005         Manager *m = userdata;
1006         Session *session;
1007         Seat *seat;
1008         int r;
1009
1010         assert(message);
1011         assert(m);
1012
1013         /* Same as ActivateSession() but refuses to work if
1014          * the seat doesn't match */
1015
1016         r = sd_bus_message_read(message, "ss", &session_name, &seat_name);
1017         if (r < 0)
1018                 return r;
1019
1020         r = manager_get_session_from_creds(m, message, session_name, error, &session);
1021         if (r < 0)
1022                 return r;
1023
1024         r = manager_get_seat_from_creds(m, message, seat_name, error, &seat);
1025         if (r < 0)
1026                 return r;
1027
1028         if (session->seat != seat)
1029                 return sd_bus_error_setf(error, BUS_ERROR_SESSION_NOT_ON_SEAT, "Session %s not on seat %s", session_name, seat_name);
1030
1031         r = session_activate(session);
1032         if (r < 0)
1033                 return r;
1034
1035         return sd_bus_reply_method_return(message, NULL);
1036 }
1037
1038 static int method_lock_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1039         Manager *m = userdata;
1040         Session *session;
1041         const char *name;
1042         int r;
1043
1044         assert(message);
1045         assert(m);
1046
1047         r = sd_bus_message_read(message, "s", &name);
1048         if (r < 0)
1049                 return r;
1050
1051         r = manager_get_session_from_creds(m, message, name, error, &session);
1052         if (r < 0)
1053                 return r;
1054
1055         return bus_session_method_lock(message, session, error);
1056 }
1057
1058 static int method_lock_sessions(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1059         Manager *m = userdata;
1060         int r;
1061
1062         assert(message);
1063         assert(m);
1064
1065         r = bus_verify_polkit_async(
1066                         message,
1067                         CAP_SYS_ADMIN,
1068                         "org.freedesktop.login1.lock-sessions",
1069                         NULL,
1070                         false,
1071                         UID_INVALID,
1072                         &m->polkit_registry,
1073                         error);
1074         if (r < 0)
1075                 return r;
1076         if (r == 0)
1077                 return 1; /* Will call us back */
1078
1079         r = session_send_lock_all(m, streq(sd_bus_message_get_member(message), "LockSessions"));
1080         if (r < 0)
1081                 return r;
1082
1083         return sd_bus_reply_method_return(message, NULL);
1084 }
1085
1086 static int method_kill_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1087         const char *name;
1088         Manager *m = userdata;
1089         Session *session;
1090         int r;
1091
1092         assert(message);
1093         assert(m);
1094
1095         r = sd_bus_message_read(message, "s", &name);
1096         if (r < 0)
1097                 return r;
1098
1099         r = manager_get_session_from_creds(m, message, name, error, &session);
1100         if (r < 0)
1101                 return r;
1102
1103         return bus_session_method_kill(message, session, error);
1104 }
1105
1106 static int method_kill_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1107         Manager *m = userdata;
1108         uint32_t uid;
1109         User *user;
1110         int r;
1111
1112         assert(message);
1113         assert(m);
1114
1115         r = sd_bus_message_read(message, "u", &uid);
1116         if (r < 0)
1117                 return r;
1118
1119         r = manager_get_user_from_creds(m, message, uid, error, &user);
1120         if (r < 0)
1121                 return r;
1122
1123         return bus_user_method_kill(message, user, error);
1124 }
1125
1126 static int method_terminate_session(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1127         Manager *m = userdata;
1128         const char *name;
1129         Session *session;
1130         int r;
1131
1132         assert(message);
1133         assert(m);
1134
1135         r = sd_bus_message_read(message, "s", &name);
1136         if (r < 0)
1137                 return r;
1138
1139         r = manager_get_session_from_creds(m, message, name, error, &session);
1140         if (r < 0)
1141                 return r;
1142
1143         return bus_session_method_terminate(message, session, error);
1144 }
1145
1146 static int method_terminate_user(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1147         Manager *m = userdata;
1148         uint32_t uid;
1149         User *user;
1150         int r;
1151
1152         assert(message);
1153         assert(m);
1154
1155         r = sd_bus_message_read(message, "u", &uid);
1156         if (r < 0)
1157                 return r;
1158
1159         r = manager_get_user_from_creds(m, message, uid, error, &user);
1160         if (r < 0)
1161                 return r;
1162
1163         return bus_user_method_terminate(message, user, error);
1164 }
1165
1166 static int method_terminate_seat(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1167         Manager *m = userdata;
1168         const char *name;
1169         Seat *seat;
1170         int r;
1171
1172         assert(message);
1173         assert(m);
1174
1175         r = sd_bus_message_read(message, "s", &name);
1176         if (r < 0)
1177                 return r;
1178
1179         r = manager_get_seat_from_creds(m, message, name, error, &seat);
1180         if (r < 0)
1181                 return r;
1182
1183         return bus_seat_method_terminate(message, seat, error);
1184 }
1185
1186 static int method_set_user_linger(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1187         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
1188         _cleanup_free_ char *cc = NULL;
1189         Manager *m = userdata;
1190         int r, b, interactive;
1191         struct passwd *pw;
1192         const char *path;
1193         uint32_t uid, auth_uid;
1194
1195         assert(message);
1196         assert(m);
1197
1198         r = sd_bus_message_read(message, "ubb", &uid, &b, &interactive);
1199         if (r < 0)
1200                 return r;
1201
1202         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID |
1203                                                SD_BUS_CREDS_OWNER_UID|SD_BUS_CREDS_AUGMENT, &creds);
1204         if (r < 0)
1205                 return r;
1206
1207         if (!uid_is_valid(uid)) {
1208                 /* Note that we get the owner UID of the session or user unit,
1209                  * not the actual client UID here! */
1210                 r = sd_bus_creds_get_owner_uid(creds, &uid);
1211                 if (r < 0)
1212                         return r;
1213         }
1214
1215         /* owner_uid is racy, so for authorization we must use euid */
1216         r = sd_bus_creds_get_euid(creds, &auth_uid);
1217         if (r < 0)
1218                 return r;
1219
1220         errno = 0;
1221         pw = getpwuid(uid);
1222         if (!pw)
1223                 return errno > 0 ? -errno : -ENOENT;
1224
1225         r = bus_verify_polkit_async(
1226                         message,
1227                         CAP_SYS_ADMIN,
1228                         uid == auth_uid ? "org.freedesktop.login1.set-self-linger" :
1229                                           "org.freedesktop.login1.set-user-linger",
1230                         NULL,
1231                         interactive,
1232                         UID_INVALID,
1233                         &m->polkit_registry,
1234                         error);
1235         if (r < 0)
1236                 return r;
1237         if (r == 0)
1238                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1239
1240         mkdir_p_label("/var/lib/elogind", 0755);
1241
1242         r = mkdir_safe_label("/var/lib/elogind/linger", 0755, 0, 0, false);
1243         if (r < 0)
1244                 return r;
1245
1246         cc = cescape(pw->pw_name);
1247         if (!cc)
1248                 return -ENOMEM;
1249
1250         path = strjoina("/var/lib/elogind/linger/", cc);
1251         if (b) {
1252                 User *u;
1253
1254                 r = touch(path);
1255                 if (r < 0)
1256                         return r;
1257
1258                 if (manager_add_user_by_uid(m, uid, &u) >= 0)
1259                         user_start(u);
1260
1261         } else {
1262                 User *u;
1263
1264                 r = unlink(path);
1265                 if (r < 0 && errno != ENOENT)
1266                         return -errno;
1267
1268                 u = hashmap_get(m->users, UID_TO_PTR(uid));
1269                 if (u)
1270                         user_add_to_gc_queue(u);
1271         }
1272
1273         return sd_bus_reply_method_return(message, NULL);
1274 }
1275
1276 static int trigger_device(Manager *m, struct udev_device *d) {
1277         _cleanup_udev_enumerate_unref_ struct udev_enumerate *e = NULL;
1278         struct udev_list_entry *first, *item;
1279         int r;
1280
1281         assert(m);
1282
1283         e = udev_enumerate_new(m->udev);
1284         if (!e)
1285                 return -ENOMEM;
1286
1287         if (d) {
1288                 r = udev_enumerate_add_match_parent(e, d);
1289                 if (r < 0)
1290                         return r;
1291         }
1292
1293         r = udev_enumerate_scan_devices(e);
1294         if (r < 0)
1295                 return r;
1296
1297         first = udev_enumerate_get_list_entry(e);
1298         udev_list_entry_foreach(item, first) {
1299                 _cleanup_free_ char *t = NULL;
1300                 const char *p;
1301
1302                 p = udev_list_entry_get_name(item);
1303
1304                 t = strappend(p, "/uevent");
1305                 if (!t)
1306                         return -ENOMEM;
1307
1308                 (void) write_string_file(t, "change", 0);
1309         }
1310
1311         return 0;
1312 }
1313
1314 static int attach_device(Manager *m, const char *seat, const char *sysfs) {
1315         _cleanup_udev_device_unref_ struct udev_device *d = NULL;
1316         _cleanup_free_ char *rule = NULL, *file = NULL;
1317         const char *id_for_seat;
1318         int r;
1319
1320         assert(m);
1321         assert(seat);
1322         assert(sysfs);
1323
1324         d = udev_device_new_from_syspath(m->udev, sysfs);
1325         if (!d)
1326                 return -ENODEV;
1327
1328         if (!udev_device_has_tag(d, "seat"))
1329                 return -ENODEV;
1330
1331         id_for_seat = udev_device_get_property_value(d, "ID_FOR_SEAT");
1332         if (!id_for_seat)
1333                 return -ENODEV;
1334
1335         if (asprintf(&file, "/etc/udev/rules.d/72-seat-%s.rules", id_for_seat) < 0)
1336                 return -ENOMEM;
1337
1338         if (asprintf(&rule, "TAG==\"seat\", ENV{ID_FOR_SEAT}==\"%s\", ENV{ID_SEAT}=\"%s\"", id_for_seat, seat) < 0)
1339                 return -ENOMEM;
1340
1341         mkdir_p_label("/etc/udev/rules.d", 0755);
1342         r = write_string_file_atomic_label(file, rule);
1343         if (r < 0)
1344                 return r;
1345
1346         return trigger_device(m, d);
1347 }
1348
1349 static int flush_devices(Manager *m) {
1350         _cleanup_closedir_ DIR *d;
1351
1352         assert(m);
1353
1354         d = opendir("/etc/udev/rules.d");
1355         if (!d) {
1356                 if (errno != ENOENT)
1357                         log_warning_errno(errno, "Failed to open /etc/udev/rules.d: %m");
1358         } else {
1359                 struct dirent *de;
1360
1361                 FOREACH_DIRENT_ALL(de, d, break) {
1362                         if (!dirent_is_file(de))
1363                                 continue;
1364
1365                         if (!startswith(de->d_name, "72-seat-"))
1366                                 continue;
1367
1368                         if (!endswith(de->d_name, ".rules"))
1369                                 continue;
1370
1371                         if (unlinkat(dirfd(d), de->d_name, 0) < 0)
1372                                 log_warning_errno(errno, "Failed to unlink %s: %m", de->d_name);
1373                 }
1374         }
1375
1376         return trigger_device(m, NULL);
1377 }
1378
1379 static int method_attach_device(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1380         const char *sysfs, *seat;
1381         Manager *m = userdata;
1382         int interactive, r;
1383
1384         assert(message);
1385         assert(m);
1386
1387         r = sd_bus_message_read(message, "ssb", &seat, &sysfs, &interactive);
1388         if (r < 0)
1389                 return r;
1390
1391         if (!path_startswith(sysfs, "/sys"))
1392                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Path %s is not in /sys", sysfs);
1393
1394         if (!seat_name_is_valid(seat))
1395                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Seat %s is not valid", seat);
1396
1397         r = bus_verify_polkit_async(
1398                         message,
1399                         CAP_SYS_ADMIN,
1400                         "org.freedesktop.login1.attach-device",
1401                         NULL,
1402                         interactive,
1403                         UID_INVALID,
1404                         &m->polkit_registry,
1405                         error);
1406         if (r < 0)
1407                 return r;
1408         if (r == 0)
1409                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1410
1411         r = attach_device(m, seat, sysfs);
1412         if (r < 0)
1413                 return r;
1414
1415         return sd_bus_reply_method_return(message, NULL);
1416 }
1417
1418 static int method_flush_devices(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1419         Manager *m = userdata;
1420         int interactive, r;
1421
1422         assert(message);
1423         assert(m);
1424
1425         r = sd_bus_message_read(message, "b", &interactive);
1426         if (r < 0)
1427                 return r;
1428
1429         r = bus_verify_polkit_async(
1430                         message,
1431                         CAP_SYS_ADMIN,
1432                         "org.freedesktop.login1.flush-devices",
1433                         NULL,
1434                         interactive,
1435                         UID_INVALID,
1436                         &m->polkit_registry,
1437                         error);
1438         if (r < 0)
1439                 return r;
1440         if (r == 0)
1441                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1442
1443         r = flush_devices(m);
1444         if (r < 0)
1445                 return r;
1446
1447         return sd_bus_reply_method_return(message, NULL);
1448 }
1449
1450 static int have_multiple_sessions(
1451                 Manager *m,
1452                 uid_t uid) {
1453
1454         Session *session;
1455         Iterator i;
1456
1457         assert(m);
1458
1459         /* Check for other users' sessions. Greeter sessions do not
1460          * count, and non-login sessions do not count either. */
1461         HASHMAP_FOREACH(session, m->sessions, i)
1462                 if (session->class == SESSION_USER &&
1463                     session->user->uid != uid)
1464                         return true;
1465
1466         return false;
1467 }
1468
1469 #if 0 /// elogind has its own variant in elogind-dbus.c
1470 static int bus_manager_log_shutdown(
1471                 Manager *m,
1472                 const char *unit_name) {
1473
1474         const char *p, *q;
1475
1476         assert(m);
1477         assert(unit_name);
1478
1479         if (streq(unit_name, SPECIAL_POWEROFF_TARGET)) {
1480                 p = "MESSAGE=System is powering down";
1481                 q = "SHUTDOWN=power-off";
1482         } else if (streq(unit_name, SPECIAL_REBOOT_TARGET)) {
1483                 p = "MESSAGE=System is rebooting";
1484                 q = "SHUTDOWN=reboot";
1485         } else if (streq(unit_name, SPECIAL_HALT_TARGET)) {
1486                 p = "MESSAGE=System is halting";
1487                 q = "SHUTDOWN=halt";
1488         } else if (streq(unit_name, SPECIAL_KEXEC_TARGET)) {
1489                 p = "MESSAGE=System is rebooting with kexec";
1490                 q = "SHUTDOWN=kexec";
1491         } else {
1492                 p = "MESSAGE=System is shutting down";
1493                 q = NULL;
1494         }
1495
1496         if (isempty(m->wall_message))
1497                 p = strjoina(p, ".");
1498         else
1499                 p = strjoina(p, " (", m->wall_message, ").");
1500
1501         return log_struct(LOG_NOTICE,
1502                           "MESSAGE_ID=" SD_MESSAGE_SHUTDOWN_STR,
1503                           p,
1504                           q,
1505                           NULL);
1506 }
1507 #endif // 0
1508
1509 static int lid_switch_ignore_handler(sd_event_source *e, uint64_t usec, void *userdata) {
1510         Manager *m = userdata;
1511
1512         assert(e);
1513         assert(m);
1514
1515         m->lid_switch_ignore_event_source = sd_event_source_unref(m->lid_switch_ignore_event_source);
1516         return 0;
1517 }
1518
1519 int manager_set_lid_switch_ignore(Manager *m, usec_t until) {
1520         int r;
1521
1522         assert(m);
1523
1524         if (until <= now(CLOCK_MONOTONIC))
1525                 return 0;
1526
1527         /* We want to ignore the lid switch for a while after each
1528          * suspend, and after boot-up. Hence let's install a timer for
1529          * this. As long as the event source exists we ignore the lid
1530          * switch. */
1531
1532         if (m->lid_switch_ignore_event_source) {
1533                 usec_t u;
1534
1535                 r = sd_event_source_get_time(m->lid_switch_ignore_event_source, &u);
1536                 if (r < 0)
1537                         return r;
1538
1539                 if (until <= u)
1540                         return 0;
1541
1542                 r = sd_event_source_set_time(m->lid_switch_ignore_event_source, until);
1543         } else
1544                 r = sd_event_add_time(
1545                                 m->event,
1546                                 &m->lid_switch_ignore_event_source,
1547                                 CLOCK_MONOTONIC,
1548                                 until, 0,
1549                                 lid_switch_ignore_handler, m);
1550
1551         return r;
1552 }
1553
1554 #if 0 /// elogind-dbus.c needs to access this
1555 static int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
1556 #else
1557 int send_prepare_for(Manager *m, InhibitWhat w, bool _active) {
1558 #endif // 0
1559
1560         static const char * const signal_name[_INHIBIT_WHAT_MAX] = {
1561                 [INHIBIT_SHUTDOWN] = "PrepareForShutdown",
1562                 [INHIBIT_SLEEP] = "PrepareForSleep"
1563         };
1564
1565         int active = _active;
1566
1567         assert(m);
1568         assert(w >= 0);
1569         assert(w < _INHIBIT_WHAT_MAX);
1570         assert(signal_name[w]);
1571
1572         return sd_bus_emit_signal(m->bus,
1573                                   "/org/freedesktop/login1",
1574                                   "org.freedesktop.login1.Manager",
1575                                   signal_name[w],
1576                                   "b",
1577                                   active);
1578 }
1579
1580 #if 0 /// elogind has its own variant in elogind-dbus.c
1581 static int execute_shutdown_or_sleep(
1582                 Manager *m,
1583                 InhibitWhat w,
1584                 const char *unit_name,
1585                 sd_bus_error *error) {
1586
1587         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1588         char *c = NULL;
1589         const char *p;
1590         int r;
1591
1592         assert(m);
1593         assert(w > 0);
1594         assert(w < _INHIBIT_WHAT_MAX);
1595         assert(unit_name);
1596
1597         if (w == INHIBIT_SHUTDOWN)
1598                 bus_manager_log_shutdown(m, unit_name);
1599
1600         r = sd_bus_call_method(
1601                         m->bus,
1602                         "org.freedesktop.systemd1",
1603                         "/org/freedesktop/systemd1",
1604                         "org.freedesktop.systemd1.Manager",
1605                         "StartUnit",
1606                         error,
1607                         &reply,
1608                         "ss", unit_name, "replace-irreversibly");
1609         if (r < 0)
1610                 goto error;
1611
1612         r = sd_bus_message_read(reply, "o", &p);
1613         if (r < 0)
1614                 goto error;
1615
1616         c = strdup(p);
1617         if (!c) {
1618                 r = -ENOMEM;
1619                 goto error;
1620         }
1621
1622         m->action_unit = unit_name;
1623         free(m->action_job);
1624         m->action_job = c;
1625         m->action_what = w;
1626
1627         /* Make sure the lid switch is ignored for a while */
1628         manager_set_lid_switch_ignore(m, now(CLOCK_MONOTONIC) + m->holdoff_timeout_usec);
1629
1630         return 0;
1631
1632 error:
1633         /* Tell people that they now may take a lock again */
1634         (void) send_prepare_for(m, w, false);
1635
1636         return r;
1637 }
1638 #endif // 0
1639
1640 int manager_dispatch_delayed(Manager *manager, bool timeout) {
1641
1642         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1643         Inhibitor *offending = NULL;
1644         int r;
1645
1646         assert(manager);
1647
1648 #if 0 /// elogind has no action_job, but a pending_action
1649         if (manager->action_what == 0 || manager->action_job)
1650 #else
1651         if ( (0 == manager->action_what) || (HANDLE_IGNORE == manager->pending_action) )
1652 #endif // 0
1653                 return 0;
1654
1655         if (manager_is_inhibited(manager, manager->action_what, INHIBIT_DELAY, NULL, false, false, 0, &offending)) {
1656                 _cleanup_free_ char *comm = NULL, *u = NULL;
1657
1658                 if (!timeout)
1659                         return 0;
1660
1661                 (void) get_process_comm(offending->pid, &comm);
1662                 u = uid_to_name(offending->uid);
1663
1664                 log_notice("Delay lock is active (UID "UID_FMT"/%s, PID "PID_FMT"/%s) but inhibitor timeout is reached.",
1665                            offending->uid, strna(u),
1666                            offending->pid, strna(comm));
1667         }
1668
1669         /* Actually do the operation */
1670 #if 0 /// elogind has no action_unit but a pending_action
1671         r = execute_shutdown_or_sleep(manager, manager->action_what, manager->action_unit, &error);
1672 #else
1673         r = execute_shutdown_or_sleep(manager, manager->action_what, manager->pending_action, &error);
1674 #endif // 0
1675         if (r < 0) {
1676                 log_warning("Error during inhibitor-delayed operation (already returned success to client): %s",
1677                             bus_error_message(&error, r));
1678
1679
1680 #if 0 /// elogind has no action_unit but a pending_action
1681                 manager->action_unit = NULL;
1682                 manager->action_what = 0;
1683                 return r;
1684 #else
1685                 manager->pending_action = HANDLE_IGNORE;
1686                 manager->action_what    = 0;
1687                 /* It is not a critical error for elogind if suspending fails */
1688 #endif // 0
1689         }
1690
1691         return 1;
1692 }
1693
1694 #if 0 /// elogind-dbus.c needs to access this
1695 static int manager_inhibit_timeout_handler(
1696 #else
1697 int manager_inhibit_timeout_handler(
1698 #endif // 0
1699                         sd_event_source *s,
1700                         uint64_t usec,
1701                         void *userdata) {
1702
1703         Manager *manager = userdata;
1704         int r;
1705
1706         assert(manager);
1707         assert(manager->inhibit_timeout_source == s);
1708
1709         r = manager_dispatch_delayed(manager, true);
1710         return (r < 0) ? r : 0;
1711 }
1712
1713 #if 0 /// elogind does not have unit_name but action
1714 static int delay_shutdown_or_sleep(
1715                 Manager *m,
1716                 InhibitWhat w,
1717                 const char *unit_name) {
1718 #else
1719 int delay_shutdown_or_sleep(
1720                 Manager *m,
1721                 InhibitWhat w,
1722                 HandleAction action) {
1723 #endif // 0
1724         int r;
1725         usec_t timeout_val;
1726
1727         assert(m);
1728         assert(w >= 0);
1729         assert(w < _INHIBIT_WHAT_MAX);
1730 #if 0 /// UNNEEDED by elogind
1731         assert(unit_name);
1732 #endif // 0
1733
1734         timeout_val = now(CLOCK_MONOTONIC) + m->inhibit_delay_max;
1735
1736         if (m->inhibit_timeout_source) {
1737                 r = sd_event_source_set_time(m->inhibit_timeout_source, timeout_val);
1738                 if (r < 0)
1739                         return log_error_errno(r, "sd_event_source_set_time() failed: %m");
1740
1741                 r = sd_event_source_set_enabled(m->inhibit_timeout_source, SD_EVENT_ONESHOT);
1742                 if (r < 0)
1743                         return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
1744         } else {
1745                 r = sd_event_add_time(m->event, &m->inhibit_timeout_source, CLOCK_MONOTONIC,
1746                                       timeout_val, 0, manager_inhibit_timeout_handler, m);
1747                 if (r < 0)
1748                         return r;
1749         }
1750
1751 #if 0 /// elogind does not have unit_name but pendig_action
1752         m->action_unit = unit_name;
1753 #else
1754         m->pending_action = action;
1755 #endif // 0
1756         m->action_what = w;
1757
1758         return 0;
1759 }
1760
1761 #if 0 /// elogind has its own variant in elogind-dbus.c
1762 int bus_manager_shutdown_or_sleep_now_or_later(
1763                 Manager *m,
1764                 const char *unit_name,
1765                 InhibitWhat w,
1766                 sd_bus_error *error) {
1767
1768         bool delayed;
1769         int r;
1770
1771         assert(m);
1772         assert(unit_name);
1773         assert(w > 0);
1774         assert(w <= _INHIBIT_WHAT_MAX);
1775         assert(!m->action_job);
1776
1777         /* Tell everybody to prepare for shutdown/sleep */
1778         (void) send_prepare_for(m, w, true);
1779
1780         delayed =
1781                 m->inhibit_delay_max > 0 &&
1782                 manager_is_inhibited(m, w, INHIBIT_DELAY, NULL, false, false, 0, NULL);
1783
1784         log_debug_elogind("%s called for %s (%sdelayed)", __FUNCTION__,
1785                           handle_action_to_string(action),
1786                           delayed ? "" : "NOT ");
1787         if (delayed)
1788                 /* Shutdown is delayed, keep in mind what we
1789                  * want to do, and start a timeout */
1790                 r = delay_shutdown_or_sleep(m, w, unit_name);
1791         else
1792                 /* Shutdown is not delayed, execute it
1793                  * immediately */
1794                 r = execute_shutdown_or_sleep(m, w, unit_name, error);
1795
1796         return r;
1797 }
1798 #endif // 0
1799
1800 #if 0 /// elogind-dbus.c needs to access this
1801 static int verify_shutdown_creds(
1802 #else
1803 int verify_shutdown_creds(
1804 #endif // 0
1805                 Manager *m,
1806                 sd_bus_message *message,
1807                 InhibitWhat w,
1808                 bool interactive,
1809                 const char *action,
1810                 const char *action_multiple_sessions,
1811                 const char *action_ignore_inhibit,
1812                 sd_bus_error *error) {
1813
1814         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
1815         bool multiple_sessions, blocked;
1816         uid_t uid;
1817         int r;
1818
1819         assert(m);
1820         assert(message);
1821         assert(w >= 0);
1822         assert(w <= _INHIBIT_WHAT_MAX);
1823
1824         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
1825         if (r < 0)
1826                 return r;
1827
1828         r = sd_bus_creds_get_euid(creds, &uid);
1829         if (r < 0)
1830                 return r;
1831
1832         r = have_multiple_sessions(m, uid);
1833         if (r < 0)
1834                 return r;
1835
1836         multiple_sessions = r > 0;
1837         blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
1838
1839         if (multiple_sessions && action_multiple_sessions) {
1840                 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
1841                 if (r < 0)
1842                         return r;
1843                 if (r == 0)
1844                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1845         }
1846
1847         if (blocked && action_ignore_inhibit) {
1848                 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
1849                 if (r < 0)
1850                         return r;
1851                 if (r == 0)
1852                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1853         }
1854
1855         if (!multiple_sessions && !blocked && action) {
1856                 r = bus_verify_polkit_async(message, CAP_SYS_BOOT, action, NULL, interactive, UID_INVALID, &m->polkit_registry, error);
1857                 if (r < 0)
1858                         return r;
1859                 if (r == 0)
1860                         return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1861         }
1862
1863         return 0;
1864 }
1865
1866 #if 0 /// elogind has its own variant in elogind-dbus.c
1867 static int method_do_shutdown_or_sleep(
1868                 Manager *m,
1869                 sd_bus_message *message,
1870                 const char *unit_name,
1871                 InhibitWhat w,
1872                 const char *action,
1873                 const char *action_multiple_sessions,
1874                 const char *action_ignore_inhibit,
1875                 const char *sleep_verb,
1876                 sd_bus_error *error) {
1877
1878         int interactive, r;
1879
1880         assert(m);
1881         assert(message);
1882         assert(unit_name);
1883         assert(w >= 0);
1884         assert(w <= _INHIBIT_WHAT_MAX);
1885
1886         r = sd_bus_message_read(message, "b", &interactive);
1887         if (r < 0)
1888                 return r;
1889
1890         /* Don't allow multiple jobs being executed at the same time */
1891         if (m->action_what)
1892                 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "There's already a shutdown or sleep operation in progress");
1893
1894         if (sleep_verb) {
1895                 r = can_sleep(sleep_verb);
1896                 if (r < 0)
1897                         return r;
1898
1899                 if (r == 0)
1900                         return sd_bus_error_setf(error, BUS_ERROR_SLEEP_VERB_NOT_SUPPORTED, "Sleep verb not supported");
1901         }
1902
1903         r = verify_shutdown_creds(m, message, w, interactive, action, action_multiple_sessions,
1904                                   action_ignore_inhibit, error);
1905         log_debug_elogind("verify_shutdown_creds() returned %d", r);
1906         if (r != 0)
1907                 return r;
1908
1909         r = bus_manager_shutdown_or_sleep_now_or_later(m, unit_name, w, error);
1910         if (r < 0)
1911                 return r;
1912
1913         return sd_bus_reply_method_return(message, NULL);
1914 }
1915
1916 static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1917         Manager *m = userdata;
1918
1919         return method_do_shutdown_or_sleep(
1920                         m, message,
1921                         SPECIAL_POWEROFF_TARGET,
1922                         INHIBIT_SHUTDOWN,
1923                         "org.freedesktop.login1.power-off",
1924                         "org.freedesktop.login1.power-off-multiple-sessions",
1925                         "org.freedesktop.login1.power-off-ignore-inhibit",
1926                         NULL,
1927                         error);
1928 }
1929
1930 static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1931         Manager *m = userdata;
1932
1933         return method_do_shutdown_or_sleep(
1934                         m, message,
1935                         SPECIAL_REBOOT_TARGET,
1936                         INHIBIT_SHUTDOWN,
1937                         "org.freedesktop.login1.reboot",
1938                         "org.freedesktop.login1.reboot-multiple-sessions",
1939                         "org.freedesktop.login1.reboot-ignore-inhibit",
1940                         NULL,
1941                         error);
1942 }
1943
1944 static int method_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1945         Manager *m = userdata;
1946
1947         return method_do_shutdown_or_sleep(
1948                         m, message,
1949                         SPECIAL_HALT_TARGET,
1950                         INHIBIT_SHUTDOWN,
1951                         "org.freedesktop.login1.halt",
1952                         "org.freedesktop.login1.halt-multiple-sessions",
1953                         "org.freedesktop.login1.halt-ignore-inhibit",
1954                         NULL,
1955                         error);
1956 }
1957
1958 static int method_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1959         Manager *m = userdata;
1960
1961         return method_do_shutdown_or_sleep(
1962                         m, message,
1963                         SPECIAL_SUSPEND_TARGET,
1964                         INHIBIT_SLEEP,
1965                         "org.freedesktop.login1.suspend",
1966                         "org.freedesktop.login1.suspend-multiple-sessions",
1967                         "org.freedesktop.login1.suspend-ignore-inhibit",
1968                         "suspend",
1969                         error);
1970 }
1971
1972 static int method_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1973         Manager *m = userdata;
1974
1975         return method_do_shutdown_or_sleep(
1976                         m, message,
1977                         SPECIAL_HIBERNATE_TARGET,
1978                         INHIBIT_SLEEP,
1979                         "org.freedesktop.login1.hibernate",
1980                         "org.freedesktop.login1.hibernate-multiple-sessions",
1981                         "org.freedesktop.login1.hibernate-ignore-inhibit",
1982                         "hibernate",
1983                         error);
1984 }
1985
1986 static int method_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1987         Manager *m = userdata;
1988
1989         return method_do_shutdown_or_sleep(
1990                         m, message,
1991                         SPECIAL_HYBRID_SLEEP_TARGET,
1992                         INHIBIT_SLEEP,
1993                         "org.freedesktop.login1.hibernate",
1994                         "org.freedesktop.login1.hibernate-multiple-sessions",
1995                         "org.freedesktop.login1.hibernate-ignore-inhibit",
1996                         "hybrid-sleep",
1997                         error);
1998 }
1999 #endif // 0
2000
2001 static int nologin_timeout_handler(
2002                         sd_event_source *s,
2003                         uint64_t usec,
2004                         void *userdata) {
2005
2006         Manager *m = userdata;
2007
2008         log_info("Creating /run/nologin, blocking further logins...");
2009
2010         m->unlink_nologin =
2011                 create_shutdown_run_nologin_or_warn() >= 0;
2012
2013         return 0;
2014 }
2015
2016 static int update_schedule_file(Manager *m) {
2017         _cleanup_free_ char *temp_path = NULL;
2018         _cleanup_fclose_ FILE *f = NULL;
2019         int r;
2020
2021         assert(m);
2022
2023         r = mkdir_safe_label("/run/systemd/shutdown", 0755, 0, 0, false);
2024         if (r < 0)
2025                 return log_error_errno(r, "Failed to create shutdown subdirectory: %m");
2026
2027         r = fopen_temporary("/run/systemd/shutdown/scheduled", &f, &temp_path);
2028         if (r < 0)
2029                 return log_error_errno(r, "Failed to save information about scheduled shutdowns: %m");
2030
2031         (void) fchmod(fileno(f), 0644);
2032
2033         fprintf(f,
2034                 "USEC="USEC_FMT"\n"
2035                 "WARN_WALL=%i\n"
2036                 "MODE=%s\n",
2037                 m->scheduled_shutdown_timeout,
2038                 m->enable_wall_messages,
2039                 m->scheduled_shutdown_type);
2040
2041         if (!isempty(m->wall_message)) {
2042                 _cleanup_free_ char *t;
2043
2044                 t = cescape(m->wall_message);
2045                 if (!t) {
2046                         r = -ENOMEM;
2047                         goto fail;
2048                 }
2049
2050                 fprintf(f, "WALL_MESSAGE=%s\n", t);
2051         }
2052
2053         r = fflush_and_check(f);
2054         if (r < 0)
2055                 goto fail;
2056
2057         if (rename(temp_path, "/run/systemd/shutdown/scheduled") < 0) {
2058                 r = -errno;
2059                 goto fail;
2060         }
2061
2062         return 0;
2063
2064 fail:
2065         (void) unlink(temp_path);
2066         (void) unlink("/run/systemd/shutdown/scheduled");
2067
2068         return log_error_errno(r, "Failed to write information about scheduled shutdowns: %m");
2069 }
2070
2071 #if 0 /// elogind must access this from elogind-dbus.c
2072 static void reset_scheduled_shutdown(Manager *m) {
2073 #else
2074 void reset_scheduled_shutdown(Manager *m) {
2075 #endif // 0
2076         assert(m);
2077
2078         m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
2079         m->wall_message_timeout_source = sd_event_source_unref(m->wall_message_timeout_source);
2080         m->nologin_timeout_source = sd_event_source_unref(m->nologin_timeout_source);
2081
2082         m->scheduled_shutdown_type = mfree(m->scheduled_shutdown_type);
2083         m->scheduled_shutdown_timeout = 0;
2084         m->shutdown_dry_run = false;
2085
2086         if (m->unlink_nologin) {
2087                 (void) unlink_or_warn("/run/nologin");
2088                 m->unlink_nologin = false;
2089         }
2090
2091         (void) unlink("/run/systemd/shutdown/scheduled");
2092 }
2093
2094 #if 0 /// elogind has its own variant in elogind-dbus.c
2095 static int manager_scheduled_shutdown_handler(
2096                         sd_event_source *s,
2097                         uint64_t usec,
2098                         void *userdata) {
2099
2100         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
2101         Manager *m = userdata;
2102         const char *target;
2103         int r;
2104
2105         assert(m);
2106
2107         if (isempty(m->scheduled_shutdown_type))
2108                 return 0;
2109
2110         if (streq(m->scheduled_shutdown_type, "poweroff"))
2111                 target = SPECIAL_POWEROFF_TARGET;
2112         else if (streq(m->scheduled_shutdown_type, "reboot"))
2113                 target = SPECIAL_REBOOT_TARGET;
2114         else if (streq(m->scheduled_shutdown_type, "halt"))
2115                 target = SPECIAL_HALT_TARGET;
2116         else
2117                 assert_not_reached("unexpected shutdown type");
2118
2119         /* Don't allow multiple jobs being executed at the same time */
2120         if (m->action_what) {
2121                 r = -EALREADY;
2122                 log_error("Scheduled shutdown to %s failed: shutdown or sleep operation already in progress", target);
2123                 goto error;
2124         }
2125
2126         if (m->shutdown_dry_run) {
2127                 /* We do not process delay inhibitors here.  Otherwise, we
2128                  * would have to be considered "in progress" (like the check
2129                  * above) for some seconds after our admin has seen the final
2130                  * wall message. */
2131
2132                 bus_manager_log_shutdown(m, target);
2133                 log_info("Running in dry run, suppressing action.");
2134                 reset_scheduled_shutdown(m);
2135
2136                 return 0;
2137         }
2138
2139         r = bus_manager_shutdown_or_sleep_now_or_later(m, target, INHIBIT_SHUTDOWN, &error);
2140         if (r < 0) {
2141                 log_error_errno(r, "Scheduled shutdown to %s failed: %m", target);
2142                 goto error;
2143         }
2144
2145         return 0;
2146
2147 error:
2148         reset_scheduled_shutdown(m);
2149         return r;
2150 }
2151 #endif // 0
2152
2153 static int method_schedule_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2154         Manager *m = userdata;
2155         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
2156         const char *action_multiple_sessions = NULL;
2157         const char *action_ignore_inhibit = NULL;
2158         const char *action = NULL;
2159         uint64_t elapse;
2160         char *type;
2161         int r;
2162         bool dry_run = false;
2163
2164         assert(m);
2165         assert(message);
2166
2167         log_debug_elogind("%s called", __FUNCTION__);
2168         r = sd_bus_message_read(message, "st", &type, &elapse);
2169         if (r < 0)
2170                 return r;
2171
2172         if (startswith(type, "dry-")) {
2173                 type += 4;
2174                 dry_run = true;
2175         }
2176
2177         if (streq(type, "poweroff")) {
2178                 action = "org.freedesktop.login1.power-off";
2179                 action_multiple_sessions = "org.freedesktop.login1.power-off-multiple-sessions";
2180                 action_ignore_inhibit = "org.freedesktop.login1.power-off-ignore-inhibit";
2181         } else if (streq(type, "reboot")) {
2182                 action = "org.freedesktop.login1.reboot";
2183                 action_multiple_sessions = "org.freedesktop.login1.reboot-multiple-sessions";
2184                 action_ignore_inhibit = "org.freedesktop.login1.reboot-ignore-inhibit";
2185         } else if (streq(type, "halt")) {
2186                 action = "org.freedesktop.login1.halt";
2187                 action_multiple_sessions = "org.freedesktop.login1.halt-multiple-sessions";
2188                 action_ignore_inhibit = "org.freedesktop.login1.halt-ignore-inhibit";
2189         } else
2190                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Unsupported shutdown type");
2191
2192         r = verify_shutdown_creds(m, message, INHIBIT_SHUTDOWN, false,
2193                                   action, action_multiple_sessions, action_ignore_inhibit, error);
2194         if (r != 0)
2195                 return r;
2196
2197         if (m->scheduled_shutdown_timeout_source) {
2198                 r = sd_event_source_set_time(m->scheduled_shutdown_timeout_source, elapse);
2199                 if (r < 0)
2200                         return log_error_errno(r, "sd_event_source_set_time() failed: %m");
2201
2202                 r = sd_event_source_set_enabled(m->scheduled_shutdown_timeout_source, SD_EVENT_ONESHOT);
2203                 if (r < 0)
2204                         return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
2205         } else {
2206                 r = sd_event_add_time(m->event, &m->scheduled_shutdown_timeout_source,
2207                                       CLOCK_REALTIME, elapse, 0, manager_scheduled_shutdown_handler, m);
2208                 if (r < 0)
2209                         return log_error_errno(r, "sd_event_add_time() failed: %m");
2210         }
2211
2212         r = free_and_strdup(&m->scheduled_shutdown_type, type);
2213         if (r < 0) {
2214                 m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
2215                 return log_oom();
2216         }
2217
2218         m->shutdown_dry_run = dry_run;
2219
2220         if (m->nologin_timeout_source) {
2221                 r = sd_event_source_set_time(m->nologin_timeout_source, elapse);
2222                 if (r < 0)
2223                         return log_error_errno(r, "sd_event_source_set_time() failed: %m");
2224
2225                 r = sd_event_source_set_enabled(m->nologin_timeout_source, SD_EVENT_ONESHOT);
2226                 if (r < 0)
2227                         return log_error_errno(r, "sd_event_source_set_enabled() failed: %m");
2228         } else {
2229                 r = sd_event_add_time(m->event, &m->nologin_timeout_source,
2230                                       CLOCK_REALTIME, elapse - 5 * USEC_PER_MINUTE, 0, nologin_timeout_handler, m);
2231                 if (r < 0)
2232                         return log_error_errno(r, "sd_event_add_time() failed: %m");
2233         }
2234
2235         m->scheduled_shutdown_timeout = elapse;
2236
2237         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
2238         if (r >= 0) {
2239                 const char *tty = NULL;
2240
2241                 (void) sd_bus_creds_get_uid(creds, &m->scheduled_shutdown_uid);
2242                 (void) sd_bus_creds_get_tty(creds, &tty);
2243
2244                 r = free_and_strdup(&m->scheduled_shutdown_tty, tty);
2245                 if (r < 0) {
2246                         m->scheduled_shutdown_timeout_source = sd_event_source_unref(m->scheduled_shutdown_timeout_source);
2247                         return log_oom();
2248                 }
2249         }
2250
2251         r = manager_setup_wall_message_timer(m);
2252         if (r < 0)
2253                 return r;
2254
2255         r = update_schedule_file(m);
2256         if (r < 0)
2257                 return r;
2258
2259         return sd_bus_reply_method_return(message, NULL);
2260 }
2261
2262 static int method_cancel_scheduled_shutdown(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2263         Manager *m = userdata;
2264         bool cancelled;
2265 #if 1 /// elogind needs to construct the message to allow extra wall messages
2266         _cleanup_free_ char *l = NULL;
2267 #endif // 1
2268
2269         assert(m);
2270         assert(message);
2271
2272         log_debug_elogind("%s called", __FUNCTION__);
2273         cancelled = m->scheduled_shutdown_type != NULL;
2274         reset_scheduled_shutdown(m);
2275
2276         if (cancelled && m->enable_wall_messages) {
2277                 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
2278                 const char *tty = NULL;
2279                 uid_t uid = 0;
2280                 int r;
2281
2282                 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_TTY|SD_BUS_CREDS_UID, &creds);
2283                 if (r >= 0) {
2284                         (void) sd_bus_creds_get_uid(creds, &uid);
2285                         (void) sd_bus_creds_get_tty(creds, &tty);
2286                 }
2287
2288 #if 0 /// elogind wants to allow extra cancellation messages
2289                 utmp_wall("The system shutdown has been cancelled",
2290                           uid_to_name(uid), tty, logind_wall_tty_filter, m);
2291 #else
2292                 r = asprintf(&l, "%s%sThe system shutdown has been cancelled!",
2293                              strempty(m->wall_message),
2294                              isempty(m->wall_message) ? "" : "\n");
2295                 if (r < 0) {
2296                         log_oom();
2297                         return 0;
2298                 }
2299
2300                 utmp_wall(l, uid_to_name(uid), tty, logind_wall_tty_filter, m);
2301 #endif // 0
2302         }
2303
2304         return sd_bus_reply_method_return(message, "b", cancelled);
2305 }
2306
2307 static int method_can_shutdown_or_sleep(
2308                 Manager *m,
2309                 sd_bus_message *message,
2310                 InhibitWhat w,
2311                 const char *action,
2312                 const char *action_multiple_sessions,
2313                 const char *action_ignore_inhibit,
2314                 const char *sleep_verb,
2315                 sd_bus_error *error) {
2316
2317         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
2318         bool multiple_sessions, challenge, blocked;
2319         const char *result = NULL;
2320         uid_t uid;
2321         int r;
2322
2323         assert(m);
2324         assert(message);
2325         assert(w >= 0);
2326         assert(w <= _INHIBIT_WHAT_MAX);
2327         assert(action);
2328         assert(action_multiple_sessions);
2329         assert(action_ignore_inhibit);
2330
2331         if (sleep_verb) {
2332 #if 0 /// elogind needs to have the manager being passed
2333                 r = can_sleep(sleep_verb);
2334 #else
2335                 r = can_sleep(m, sleep_verb);
2336 #endif // 0
2337                 if (r < 0)
2338                         return r;
2339                 if (r == 0)
2340                         return sd_bus_reply_method_return(message, "s", "na");
2341         }
2342
2343         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID, &creds);
2344         if (r < 0)
2345                 return r;
2346
2347         r = sd_bus_creds_get_euid(creds, &uid);
2348         if (r < 0)
2349                 return r;
2350
2351         r = have_multiple_sessions(m, uid);
2352         if (r < 0)
2353                 return r;
2354
2355         multiple_sessions = r > 0;
2356         blocked = manager_is_inhibited(m, w, INHIBIT_BLOCK, NULL, false, true, uid, NULL);
2357
2358         if (multiple_sessions) {
2359                 r = bus_test_polkit(message, CAP_SYS_BOOT, action_multiple_sessions, NULL, UID_INVALID, &challenge, error);
2360                 if (r < 0)
2361                         return r;
2362
2363                 if (r > 0)
2364                         result = "yes";
2365                 else if (challenge)
2366                         result = "challenge";
2367                 else
2368                         result = "no";
2369         }
2370
2371         if (blocked) {
2372                 r = bus_test_polkit(message, CAP_SYS_BOOT, action_ignore_inhibit, NULL, UID_INVALID, &challenge, error);
2373                 if (r < 0)
2374                         return r;
2375
2376                 if (r > 0 && !result)
2377                         result = "yes";
2378                 else if (challenge && (!result || streq(result, "yes")))
2379                         result = "challenge";
2380                 else
2381                         result = "no";
2382         }
2383
2384         if (!multiple_sessions && !blocked) {
2385                 /* If neither inhibit nor multiple sessions
2386                  * apply then just check the normal policy */
2387
2388                 r = bus_test_polkit(message, CAP_SYS_BOOT, action, NULL, UID_INVALID, &challenge, error);
2389                 if (r < 0)
2390                         return r;
2391
2392                 if (r > 0)
2393                         result = "yes";
2394                 else if (challenge)
2395                         result = "challenge";
2396                 else
2397                         result = "no";
2398         }
2399
2400         return sd_bus_reply_method_return(message, "s", result);
2401 }
2402
2403 static int method_can_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2404         Manager *m = userdata;
2405
2406         return method_can_shutdown_or_sleep(
2407                         m, message,
2408                         INHIBIT_SHUTDOWN,
2409                         "org.freedesktop.login1.power-off",
2410                         "org.freedesktop.login1.power-off-multiple-sessions",
2411                         "org.freedesktop.login1.power-off-ignore-inhibit",
2412                         NULL,
2413                         error);
2414 }
2415
2416 static int method_can_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2417         Manager *m = userdata;
2418
2419         return method_can_shutdown_or_sleep(
2420                         m, message,
2421                         INHIBIT_SHUTDOWN,
2422                         "org.freedesktop.login1.reboot",
2423                         "org.freedesktop.login1.reboot-multiple-sessions",
2424                         "org.freedesktop.login1.reboot-ignore-inhibit",
2425                         NULL,
2426                         error);
2427 }
2428
2429 static int method_can_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2430         Manager *m = userdata;
2431
2432         return method_can_shutdown_or_sleep(
2433                         m, message,
2434                         INHIBIT_SHUTDOWN,
2435                         "org.freedesktop.login1.halt",
2436                         "org.freedesktop.login1.halt-multiple-sessions",
2437                         "org.freedesktop.login1.halt-ignore-inhibit",
2438                         NULL,
2439                         error);
2440 }
2441
2442 static int method_can_suspend(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2443         Manager *m = userdata;
2444
2445         return method_can_shutdown_or_sleep(
2446                         m, message,
2447                         INHIBIT_SLEEP,
2448                         "org.freedesktop.login1.suspend",
2449                         "org.freedesktop.login1.suspend-multiple-sessions",
2450                         "org.freedesktop.login1.suspend-ignore-inhibit",
2451                         "suspend",
2452                         error);
2453 }
2454
2455 static int method_can_hibernate(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2456         Manager *m = userdata;
2457
2458         return method_can_shutdown_or_sleep(
2459                         m, message,
2460                         INHIBIT_SLEEP,
2461                         "org.freedesktop.login1.hibernate",
2462                         "org.freedesktop.login1.hibernate-multiple-sessions",
2463                         "org.freedesktop.login1.hibernate-ignore-inhibit",
2464                         "hibernate",
2465                         error);
2466 }
2467
2468 static int method_can_hybrid_sleep(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2469         Manager *m = userdata;
2470
2471         return method_can_shutdown_or_sleep(
2472                         m, message,
2473                         INHIBIT_SLEEP,
2474                         "org.freedesktop.login1.hibernate",
2475                         "org.freedesktop.login1.hibernate-multiple-sessions",
2476                         "org.freedesktop.login1.hibernate-ignore-inhibit",
2477                         "hybrid-sleep",
2478                         error);
2479 }
2480
2481 static int property_get_reboot_to_firmware_setup(
2482                 sd_bus *bus,
2483                 const char *path,
2484                 const char *interface,
2485                 const char *property,
2486                 sd_bus_message *reply,
2487                 void *userdata,
2488                 sd_bus_error *error) {
2489 #if 0 /// elogind does not support EFI
2490         int r;
2491
2492         assert(bus);
2493         assert(reply);
2494         assert(userdata);
2495
2496         r = efi_get_reboot_to_firmware();
2497         if (r < 0 && r != -EOPNOTSUPP)
2498                 log_warning_errno(r, "Failed to determine reboot-to-firmware state: %m");
2499
2500         return sd_bus_message_append(reply, "b", r > 0);
2501 #else
2502         return sd_bus_message_append(reply, "b", false);
2503 #endif // 0
2504 }
2505
2506 static int method_set_reboot_to_firmware_setup(
2507                 sd_bus_message *message,
2508                 void *userdata,
2509                 sd_bus_error *error) {
2510
2511         int b, r;
2512         Manager *m = userdata;
2513
2514         assert(message);
2515         assert(m);
2516
2517         r = sd_bus_message_read(message, "b", &b);
2518         if (r < 0)
2519                 return r;
2520
2521         r = bus_verify_polkit_async(message,
2522                                     CAP_SYS_ADMIN,
2523                                     "org.freedesktop.login1.set-reboot-to-firmware-setup",
2524                                     NULL,
2525                                     false,
2526                                     UID_INVALID,
2527                                     &m->polkit_registry,
2528                                     error);
2529         if (r < 0)
2530                 return r;
2531         if (r == 0)
2532                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2533
2534 #if 0 /// elogind does not support EFI
2535         r = efi_set_reboot_to_firmware(b);
2536         if (r < 0)
2537                 return r;
2538 #endif // 0
2539
2540         return sd_bus_reply_method_return(message, NULL);
2541 }
2542
2543 static int method_can_reboot_to_firmware_setup(
2544                 sd_bus_message *message,
2545                 void *userdata,
2546                 sd_bus_error *error) {
2547
2548 #if 0 /// elogind does not support EFI
2549         int r;
2550         bool challenge;
2551         const char *result;
2552         Manager *m = userdata;
2553
2554         assert(message);
2555         assert(m);
2556
2557         r = efi_reboot_to_firmware_supported();
2558         if (r < 0) {
2559                 if (r != -EOPNOTSUPP)
2560                         log_warning_errno(errno, "Failed to determine whether reboot to firmware is supported: %m");
2561
2562                 return sd_bus_reply_method_return(message, "s", "na");
2563         }
2564
2565         r = bus_test_polkit(message,
2566                             CAP_SYS_ADMIN,
2567                             "org.freedesktop.login1.set-reboot-to-firmware-setup",
2568                             NULL,
2569                             UID_INVALID,
2570                             &challenge,
2571                             error);
2572         if (r < 0)
2573                 return r;
2574
2575         if (r > 0)
2576                 result = "yes";
2577         else if (challenge)
2578                 result = "challenge";
2579         else
2580                 result = "no";
2581
2582         return sd_bus_reply_method_return(message, "s", result);
2583 #else
2584         return sd_bus_reply_method_return(message, "s", "no");
2585 #endif // 0
2586 }
2587
2588 static int method_set_wall_message(
2589                 sd_bus_message *message,
2590                 void *userdata,
2591                 sd_bus_error *error) {
2592
2593         int r;
2594         Manager *m = userdata;
2595         char *wall_message;
2596         int enable_wall_messages;
2597
2598         assert(message);
2599         assert(m);
2600
2601         r = sd_bus_message_read(message, "sb", &wall_message, &enable_wall_messages);
2602         if (r < 0)
2603                 return r;
2604
2605 #if 0 /// elogind only calls this for shutdown/reboot, which already needs authorization.
2606         r = bus_verify_polkit_async(message,
2607                                     CAP_SYS_ADMIN,
2608                                     "org.freedesktop.login1.set-wall-message",
2609                                     NULL,
2610                                     false,
2611                                     UID_INVALID,
2612                                     &m->polkit_registry,
2613                                     error);
2614         if (r < 0)
2615                 return r;
2616         if (r == 0)
2617                 return 1; /* Will call us back */
2618 #endif // 0
2619
2620         r = free_and_strdup(&m->wall_message, empty_to_null(wall_message));
2621         if (r < 0)
2622                 return log_oom();
2623
2624         m->enable_wall_messages = enable_wall_messages;
2625
2626         return sd_bus_reply_method_return(message, NULL);
2627 }
2628
2629 static int method_inhibit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2630         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
2631         const char *who, *why, *what, *mode;
2632         _cleanup_free_ char *id = NULL;
2633         _cleanup_close_ int fifo_fd = -1;
2634         Manager *m = userdata;
2635         Inhibitor *i = NULL;
2636         InhibitMode mm;
2637         InhibitWhat w;
2638         pid_t pid;
2639         uid_t uid;
2640         int r;
2641
2642         assert(message);
2643         assert(m);
2644
2645         r = sd_bus_message_read(message, "ssss", &what, &who, &why, &mode);
2646         if (r < 0)
2647                 return r;
2648
2649         w = inhibit_what_from_string(what);
2650         if (w <= 0)
2651                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid what specification %s", what);
2652
2653         mm = inhibit_mode_from_string(mode);
2654         if (mm < 0)
2655                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid mode specification %s", mode);
2656
2657         /* Delay is only supported for shutdown/sleep */
2658         if (mm == INHIBIT_DELAY && (w & ~(INHIBIT_SHUTDOWN|INHIBIT_SLEEP)))
2659                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Delay inhibitors only supported for shutdown and sleep");
2660
2661         /* Don't allow taking delay locks while we are already
2662          * executing the operation. We shouldn't create the impression
2663          * that the lock was successful if the machine is about to go
2664          * down/suspend any moment. */
2665         if (m->action_what & w)
2666                 return sd_bus_error_setf(error, BUS_ERROR_OPERATION_IN_PROGRESS, "The operation inhibition has been requested for is already running");
2667
2668         r = bus_verify_polkit_async(
2669                         message,
2670                         CAP_SYS_BOOT,
2671                         w == INHIBIT_SHUTDOWN             ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-shutdown" : "org.freedesktop.login1.inhibit-delay-shutdown") :
2672                         w == INHIBIT_SLEEP                ? (mm == INHIBIT_BLOCK ? "org.freedesktop.login1.inhibit-block-sleep"    : "org.freedesktop.login1.inhibit-delay-sleep") :
2673                         w == INHIBIT_IDLE                 ? "org.freedesktop.login1.inhibit-block-idle" :
2674                         w == INHIBIT_HANDLE_POWER_KEY     ? "org.freedesktop.login1.inhibit-handle-power-key" :
2675                         w == INHIBIT_HANDLE_SUSPEND_KEY   ? "org.freedesktop.login1.inhibit-handle-suspend-key" :
2676                         w == INHIBIT_HANDLE_HIBERNATE_KEY ? "org.freedesktop.login1.inhibit-handle-hibernate-key" :
2677                                                             "org.freedesktop.login1.inhibit-handle-lid-switch",
2678                         NULL,
2679                         false,
2680                         UID_INVALID,
2681                         &m->polkit_registry,
2682                         error);
2683         if (r < 0)
2684                 return r;
2685         if (r == 0)
2686                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2687
2688         r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_EUID|SD_BUS_CREDS_PID, &creds);
2689         if (r < 0)
2690                 return r;
2691
2692         r = sd_bus_creds_get_euid(creds, &uid);
2693         if (r < 0)
2694                 return r;
2695
2696         r = sd_bus_creds_get_pid(creds, &pid);
2697         if (r < 0)
2698                 return r;
2699
2700         if (hashmap_size(m->inhibitors) >= m->inhibitors_max)
2701                 return sd_bus_error_setf(error, SD_BUS_ERROR_LIMITS_EXCEEDED, "Maximum number of inhibitors (%" PRIu64 ") reached, refusing further inhibitors.", m->inhibitors_max);
2702
2703         do {
2704                 id = mfree(id);
2705
2706                 if (asprintf(&id, "%lu", ++m->inhibit_counter) < 0)
2707                         return -ENOMEM;
2708
2709         } while (hashmap_get(m->inhibitors, id));
2710
2711         r = manager_add_inhibitor(m, id, &i);
2712         if (r < 0)
2713                 return r;
2714
2715         i->what = w;
2716         i->mode = mm;
2717         i->pid = pid;
2718         i->uid = uid;
2719         i->why = strdup(why);
2720         i->who = strdup(who);
2721
2722         if (!i->why || !i->who) {
2723                 r = -ENOMEM;
2724                 goto fail;
2725         }
2726
2727         fifo_fd = inhibitor_create_fifo(i);
2728         if (fifo_fd < 0) {
2729                 r = fifo_fd;
2730                 goto fail;
2731         }
2732
2733         inhibitor_start(i);
2734
2735         return sd_bus_reply_method_return(message, "h", fifo_fd);
2736
2737 fail:
2738         if (i)
2739                 inhibitor_free(i);
2740
2741         return r;
2742 }
2743
2744 const sd_bus_vtable manager_vtable[] = {
2745         SD_BUS_VTABLE_START(0),
2746
2747         SD_BUS_WRITABLE_PROPERTY("EnableWallMessages", "b", NULL, NULL, offsetof(Manager, enable_wall_messages), 0),
2748         SD_BUS_WRITABLE_PROPERTY("WallMessage", "s", NULL, NULL, offsetof(Manager, wall_message), 0),
2749
2750 #if 0 /// UNNEEDED by elogind
2751         SD_BUS_PROPERTY("NAutoVTs", "u", NULL, offsetof(Manager, n_autovts), SD_BUS_VTABLE_PROPERTY_CONST),
2752 #endif // 0
2753         SD_BUS_PROPERTY("KillOnlyUsers", "as", NULL, offsetof(Manager, kill_only_users), SD_BUS_VTABLE_PROPERTY_CONST),
2754         SD_BUS_PROPERTY("KillExcludeUsers", "as", NULL, offsetof(Manager, kill_exclude_users), SD_BUS_VTABLE_PROPERTY_CONST),
2755         SD_BUS_PROPERTY("KillUserProcesses", "b", NULL, offsetof(Manager, kill_user_processes), SD_BUS_VTABLE_PROPERTY_CONST),
2756         SD_BUS_PROPERTY("RebootToFirmwareSetup", "b", property_get_reboot_to_firmware_setup, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2757         SD_BUS_PROPERTY("IdleHint", "b", property_get_idle_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2758         SD_BUS_PROPERTY("IdleSinceHint", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2759         SD_BUS_PROPERTY("IdleSinceHintMonotonic", "t", property_get_idle_since_hint, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2760         SD_BUS_PROPERTY("BlockInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2761         SD_BUS_PROPERTY("DelayInhibited", "s", property_get_inhibited, 0, SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2762         SD_BUS_PROPERTY("InhibitDelayMaxUSec", "t", NULL, offsetof(Manager, inhibit_delay_max), SD_BUS_VTABLE_PROPERTY_CONST),
2763         SD_BUS_PROPERTY("HandlePowerKey", "s", property_get_handle_action, offsetof(Manager, handle_power_key), SD_BUS_VTABLE_PROPERTY_CONST),
2764         SD_BUS_PROPERTY("HandleSuspendKey", "s", property_get_handle_action, offsetof(Manager, handle_suspend_key), SD_BUS_VTABLE_PROPERTY_CONST),
2765         SD_BUS_PROPERTY("HandleHibernateKey", "s", property_get_handle_action, offsetof(Manager, handle_hibernate_key), SD_BUS_VTABLE_PROPERTY_CONST),
2766         SD_BUS_PROPERTY("HandleLidSwitch", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch), SD_BUS_VTABLE_PROPERTY_CONST),
2767         SD_BUS_PROPERTY("HandleLidSwitchExternalPower", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_ep), SD_BUS_VTABLE_PROPERTY_CONST),
2768         SD_BUS_PROPERTY("HandleLidSwitchDocked", "s", property_get_handle_action, offsetof(Manager, handle_lid_switch_docked), SD_BUS_VTABLE_PROPERTY_CONST),
2769         SD_BUS_PROPERTY("HoldoffTimeoutUSec", "t", NULL, offsetof(Manager, holdoff_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2770         SD_BUS_PROPERTY("IdleAction", "s", property_get_handle_action, offsetof(Manager, idle_action), SD_BUS_VTABLE_PROPERTY_CONST),
2771         SD_BUS_PROPERTY("IdleActionUSec", "t", NULL, offsetof(Manager, idle_action_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2772         SD_BUS_PROPERTY("PreparingForShutdown", "b", property_get_preparing, 0, 0),
2773         SD_BUS_PROPERTY("PreparingForSleep", "b", property_get_preparing, 0, 0),
2774         SD_BUS_PROPERTY("ScheduledShutdown", "(st)", property_get_scheduled_shutdown, 0, 0),
2775         SD_BUS_PROPERTY("Docked", "b", property_get_docked, 0, 0),
2776         SD_BUS_PROPERTY("RemoveIPC", "b", bus_property_get_bool, offsetof(Manager, remove_ipc), SD_BUS_VTABLE_PROPERTY_CONST),
2777         SD_BUS_PROPERTY("RuntimeDirectorySize", "t", bus_property_get_size, offsetof(Manager, runtime_dir_size), SD_BUS_VTABLE_PROPERTY_CONST),
2778         SD_BUS_PROPERTY("InhibitorsMax", "t", NULL, offsetof(Manager, inhibitors_max), SD_BUS_VTABLE_PROPERTY_CONST),
2779         SD_BUS_PROPERTY("NCurrentInhibitors", "t", property_get_current_inhibitors, 0, 0),
2780         SD_BUS_PROPERTY("SessionsMax", "t", NULL, offsetof(Manager, sessions_max), SD_BUS_VTABLE_PROPERTY_CONST),
2781         SD_BUS_PROPERTY("NCurrentSessions", "t", property_get_current_sessions, 0, 0),
2782         SD_BUS_PROPERTY("UserTasksMax", "t", NULL, offsetof(Manager, user_tasks_max), SD_BUS_VTABLE_PROPERTY_CONST),
2783
2784         SD_BUS_METHOD("GetSession", "s", "o", method_get_session, SD_BUS_VTABLE_UNPRIVILEGED),
2785         SD_BUS_METHOD("GetSessionByPID", "u", "o", method_get_session_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
2786         SD_BUS_METHOD("GetUser", "u", "o", method_get_user, SD_BUS_VTABLE_UNPRIVILEGED),
2787         SD_BUS_METHOD("GetUserByPID", "u", "o", method_get_user_by_pid, SD_BUS_VTABLE_UNPRIVILEGED),
2788         SD_BUS_METHOD("GetSeat", "s", "o", method_get_seat, SD_BUS_VTABLE_UNPRIVILEGED),
2789         SD_BUS_METHOD("ListSessions", NULL, "a(susso)", method_list_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
2790         SD_BUS_METHOD("ListUsers", NULL, "a(uso)", method_list_users, SD_BUS_VTABLE_UNPRIVILEGED),
2791         SD_BUS_METHOD("ListSeats", NULL, "a(so)", method_list_seats, SD_BUS_VTABLE_UNPRIVILEGED),
2792         SD_BUS_METHOD("ListInhibitors", NULL, "a(ssssuu)", method_list_inhibitors, SD_BUS_VTABLE_UNPRIVILEGED),
2793         SD_BUS_METHOD("CreateSession", "uusssssussbssa(sv)", "soshusub", method_create_session, 0),
2794         SD_BUS_METHOD("ReleaseSession", "s", NULL, method_release_session, 0),
2795         SD_BUS_METHOD("ActivateSession", "s", NULL, method_activate_session, SD_BUS_VTABLE_UNPRIVILEGED),
2796         SD_BUS_METHOD("ActivateSessionOnSeat", "ss", NULL, method_activate_session_on_seat, SD_BUS_VTABLE_UNPRIVILEGED),
2797         SD_BUS_METHOD("LockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED),
2798         SD_BUS_METHOD("UnlockSession", "s", NULL, method_lock_session, SD_BUS_VTABLE_UNPRIVILEGED),
2799         SD_BUS_METHOD("LockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
2800         SD_BUS_METHOD("UnlockSessions", NULL, NULL, method_lock_sessions, SD_BUS_VTABLE_UNPRIVILEGED),
2801         SD_BUS_METHOD("KillSession", "ssi", NULL, method_kill_session, SD_BUS_VTABLE_UNPRIVILEGED),
2802         SD_BUS_METHOD("KillUser", "ui", NULL, method_kill_user, SD_BUS_VTABLE_UNPRIVILEGED),
2803         SD_BUS_METHOD("TerminateSession", "s", NULL, method_terminate_session, SD_BUS_VTABLE_UNPRIVILEGED),
2804         SD_BUS_METHOD("TerminateUser", "u", NULL, method_terminate_user, SD_BUS_VTABLE_UNPRIVILEGED),
2805         SD_BUS_METHOD("TerminateSeat", "s", NULL, method_terminate_seat, SD_BUS_VTABLE_UNPRIVILEGED),
2806         SD_BUS_METHOD("SetUserLinger", "ubb", NULL, method_set_user_linger, SD_BUS_VTABLE_UNPRIVILEGED),
2807         SD_BUS_METHOD("AttachDevice", "ssb", NULL, method_attach_device, SD_BUS_VTABLE_UNPRIVILEGED),
2808         SD_BUS_METHOD("FlushDevices", "b", NULL, method_flush_devices, SD_BUS_VTABLE_UNPRIVILEGED),
2809         SD_BUS_METHOD("PowerOff", "b", NULL, method_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
2810         SD_BUS_METHOD("Reboot", "b", NULL, method_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
2811         SD_BUS_METHOD("Halt", "b", NULL, method_halt, SD_BUS_VTABLE_UNPRIVILEGED),
2812         SD_BUS_METHOD("Suspend", "b", NULL, method_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
2813         SD_BUS_METHOD("Hibernate", "b", NULL, method_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
2814         SD_BUS_METHOD("HybridSleep", "b", NULL, method_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
2815         SD_BUS_METHOD("CanPowerOff", NULL, "s", method_can_poweroff, SD_BUS_VTABLE_UNPRIVILEGED),
2816         SD_BUS_METHOD("CanReboot", NULL, "s", method_can_reboot, SD_BUS_VTABLE_UNPRIVILEGED),
2817         SD_BUS_METHOD("CanHalt", NULL, "s", method_can_halt, SD_BUS_VTABLE_UNPRIVILEGED),
2818         SD_BUS_METHOD("CanSuspend", NULL, "s", method_can_suspend, SD_BUS_VTABLE_UNPRIVILEGED),
2819         SD_BUS_METHOD("CanHibernate", NULL, "s", method_can_hibernate, SD_BUS_VTABLE_UNPRIVILEGED),
2820         SD_BUS_METHOD("CanHybridSleep", NULL, "s", method_can_hybrid_sleep, SD_BUS_VTABLE_UNPRIVILEGED),
2821         SD_BUS_METHOD("ScheduleShutdown", "st", NULL, method_schedule_shutdown, SD_BUS_VTABLE_UNPRIVILEGED),
2822         SD_BUS_METHOD("CancelScheduledShutdown", NULL, "b", method_cancel_scheduled_shutdown, SD_BUS_VTABLE_UNPRIVILEGED),
2823         SD_BUS_METHOD("Inhibit", "ssss", "h", method_inhibit, SD_BUS_VTABLE_UNPRIVILEGED),
2824         SD_BUS_METHOD("CanRebootToFirmwareSetup", NULL, "s", method_can_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED),
2825         SD_BUS_METHOD("SetRebootToFirmwareSetup", "b", NULL, method_set_reboot_to_firmware_setup, SD_BUS_VTABLE_UNPRIVILEGED),
2826         SD_BUS_METHOD("SetWallMessage", "sb", NULL, method_set_wall_message, SD_BUS_VTABLE_UNPRIVILEGED),
2827
2828         SD_BUS_SIGNAL("SessionNew", "so", 0),
2829         SD_BUS_SIGNAL("SessionRemoved", "so", 0),
2830         SD_BUS_SIGNAL("UserNew", "uo", 0),
2831         SD_BUS_SIGNAL("UserRemoved", "uo", 0),
2832         SD_BUS_SIGNAL("SeatNew", "so", 0),
2833         SD_BUS_SIGNAL("SeatRemoved", "so", 0),
2834         SD_BUS_SIGNAL("PrepareForShutdown", "b", 0),
2835         SD_BUS_SIGNAL("PrepareForSleep", "b", 0),
2836
2837         SD_BUS_VTABLE_END
2838 };
2839
2840 #if 0 /// UNNEEDED by elogind
2841 static int session_jobs_reply(Session *s, const char *unit, const char *result) {
2842         int r = 0;
2843
2844         assert(s);
2845         assert(unit);
2846
2847         if (!s->started)
2848                 return r;
2849
2850         if (streq(result, "done"))
2851                 r = session_send_create_reply(s, NULL);
2852         else {
2853                 _cleanup_(sd_bus_error_free) sd_bus_error e = SD_BUS_ERROR_NULL;
2854
2855                 sd_bus_error_setf(&e, BUS_ERROR_JOB_FAILED, "Start job for unit %s failed with '%s'", unit, result);
2856                 r = session_send_create_reply(s, &e);
2857         }
2858
2859         return r;
2860 }
2861
2862 int match_job_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2863         const char *path, *result, *unit;
2864         Manager *m = userdata;
2865         Session *session;
2866         uint32_t id;
2867         User *user;
2868         int r;
2869
2870         assert(message);
2871         assert(m);
2872
2873         r = sd_bus_message_read(message, "uoss", &id, &path, &unit, &result);
2874         if (r < 0) {
2875                 bus_log_parse_error(r);
2876                 return 0;
2877         }
2878
2879         if (m->action_job && streq(m->action_job, path)) {
2880                 log_info("Operation '%s' finished.", inhibit_what_to_string(m->action_what));
2881
2882                 /* Tell people that they now may take a lock again */
2883                 (void) send_prepare_for(m, m->action_what, false);
2884
2885                 m->action_job = mfree(m->action_job);
2886                 m->action_unit = NULL;
2887                 m->action_what = 0;
2888                 return 0;
2889         }
2890
2891         session = hashmap_get(m->session_units, unit);
2892         if (session && streq_ptr(path, session->scope_job)) {
2893                 session->scope_job = mfree(session->scope_job);
2894                 session_jobs_reply(session, unit, result);
2895
2896                 session_save(session);
2897                 user_save(session->user);
2898                 session_add_to_gc_queue(session);
2899         }
2900
2901         user = hashmap_get(m->user_units, unit);
2902         if (user &&
2903             (streq_ptr(path, user->service_job) ||
2904              streq_ptr(path, user->slice_job))) {
2905
2906                 if (streq_ptr(path, user->service_job))
2907                         user->service_job = mfree(user->service_job);
2908
2909                 if (streq_ptr(path, user->slice_job))
2910                         user->slice_job = mfree(user->slice_job);
2911
2912                 LIST_FOREACH(sessions_by_user, session, user->sessions)
2913                         session_jobs_reply(session, unit, result);
2914
2915                 user_save(user);
2916                 user_add_to_gc_queue(user);
2917         }
2918
2919         return 0;
2920 }
2921
2922 int match_unit_removed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2923         const char *path, *unit;
2924         Manager *m = userdata;
2925         Session *session;
2926         User *user;
2927         int r;
2928
2929         assert(message);
2930         assert(m);
2931
2932         r = sd_bus_message_read(message, "so", &unit, &path);
2933         if (r < 0) {
2934                 bus_log_parse_error(r);
2935                 return 0;
2936         }
2937
2938         session = hashmap_get(m->session_units, unit);
2939         if (session)
2940                 session_add_to_gc_queue(session);
2941
2942         user = hashmap_get(m->user_units, unit);
2943         if (user)
2944                 user_add_to_gc_queue(user);
2945
2946         return 0;
2947 }
2948
2949 int match_properties_changed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2950         _cleanup_free_ char *unit = NULL;
2951         Manager *m = userdata;
2952         const char *path;
2953         Session *session;
2954         User *user;
2955         int r;
2956
2957         assert(message);
2958         assert(m);
2959
2960         path = sd_bus_message_get_path(message);
2961         if (!path)
2962                 return 0;
2963
2964         r = unit_name_from_dbus_path(path, &unit);
2965         if (r == -EINVAL) /* not a unit */
2966                 return 0;
2967         if (r < 0) {
2968                 log_oom();
2969                 return 0;
2970         }
2971
2972         session = hashmap_get(m->session_units, unit);
2973         if (session)
2974                 session_add_to_gc_queue(session);
2975
2976         user = hashmap_get(m->user_units, unit);
2977         if (user)
2978                 user_add_to_gc_queue(user);
2979
2980         return 0;
2981 }
2982
2983 int match_reloading(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2984         Manager *m = userdata;
2985         Session *session;
2986         Iterator i;
2987         int b, r;
2988
2989         assert(message);
2990         assert(m);
2991
2992         r = sd_bus_message_read(message, "b", &b);
2993         if (r < 0) {
2994                 bus_log_parse_error(r);
2995                 return 0;
2996         }
2997
2998         if (b)
2999                 return 0;
3000
3001         /* systemd finished reloading, let's recheck all our sessions */
3002         log_debug("System manager has been reloaded, rechecking sessions...");
3003
3004         HASHMAP_FOREACH(session, m->sessions, i)
3005                 session_add_to_gc_queue(session);
3006
3007         return 0;
3008 }
3009 #endif // 0
3010
3011 int manager_send_changed(Manager *manager, const char *property, ...) {
3012         char **l;
3013
3014         assert(manager);
3015
3016         l = strv_from_stdarg_alloca(property);
3017
3018         return sd_bus_emit_properties_changed_strv(
3019                         manager->bus,
3020                         "/org/freedesktop/login1",
3021                         "org.freedesktop.login1.Manager",
3022                         l);
3023 }
3024
3025 #if 0 /// UNNEEDED by elogind
3026 static int strdup_job(sd_bus_message *reply, char **job) {
3027         const char *j;
3028         char *copy;
3029         int r;
3030
3031         r = sd_bus_message_read(reply, "o", &j);
3032         if (r < 0)
3033                 return r;
3034
3035         copy = strdup(j);
3036         if (!copy)
3037                 return -ENOMEM;
3038
3039         *job = copy;
3040         return 1;
3041 }
3042
3043 int manager_start_slice(
3044                 Manager *manager,
3045                 const char *slice,
3046                 const char *description,
3047                 const char *after,
3048                 const char *after2,
3049                 uint64_t tasks_max,
3050                 sd_bus_error *error,
3051                 char **job) {
3052
3053         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
3054         int r;
3055
3056         assert(manager);
3057         assert(slice);
3058         assert(job);
3059
3060         r = sd_bus_message_new_method_call(
3061                         manager->bus,
3062                         &m,
3063                         "org.freedesktop.systemd1",
3064                         "/org/freedesktop/systemd1",
3065                         "org.freedesktop.systemd1.Manager",
3066                         "StartTransientUnit");
3067         if (r < 0)
3068                 return r;
3069
3070         r = sd_bus_message_append(m, "ss", strempty(slice), "fail");
3071         if (r < 0)
3072                 return r;
3073
3074         r = sd_bus_message_open_container(m, 'a', "(sv)");
3075         if (r < 0)
3076                 return r;
3077
3078         if (!isempty(description)) {
3079                 r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
3080                 if (r < 0)
3081                         return r;
3082         }
3083
3084         if (!isempty(after)) {
3085                 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
3086                 if (r < 0)
3087                         return r;
3088         }
3089
3090         if (!isempty(after2)) {
3091                 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
3092                 if (r < 0)
3093                         return r;
3094         }
3095
3096         r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
3097         if (r < 0)
3098                 return r;
3099
3100         r = sd_bus_message_close_container(m);
3101         if (r < 0)
3102                 return r;
3103
3104         r = sd_bus_message_append(m, "a(sa(sv))", 0);
3105         if (r < 0)
3106                 return r;
3107
3108         r = sd_bus_call(manager->bus, m, 0, error, &reply);
3109         if (r < 0)
3110                 return r;
3111
3112         return strdup_job(reply, job);
3113 }
3114
3115 int manager_start_scope(
3116                 Manager *manager,
3117                 const char *scope,
3118                 pid_t pid,
3119                 const char *slice,
3120                 const char *description,
3121                 const char *after,
3122                 const char *after2,
3123                 uint64_t tasks_max,
3124                 sd_bus_error *error,
3125                 char **job) {
3126
3127         _cleanup_(sd_bus_message_unrefp) sd_bus_message *m = NULL, *reply = NULL;
3128         int r;
3129
3130         assert(manager);
3131         assert(scope);
3132         assert(pid > 1);
3133         assert(job);
3134
3135         r = sd_bus_message_new_method_call(
3136                         manager->bus,
3137                         &m,
3138                         "org.freedesktop.systemd1",
3139                         "/org/freedesktop/systemd1",
3140                         "org.freedesktop.systemd1.Manager",
3141                         "StartTransientUnit");
3142         if (r < 0)
3143                 return r;
3144
3145         r = sd_bus_message_append(m, "ss", strempty(scope), "fail");
3146         if (r < 0)
3147                 return r;
3148
3149         r = sd_bus_message_open_container(m, 'a', "(sv)");
3150         if (r < 0)
3151                 return r;
3152
3153         if (!isempty(slice)) {
3154                 r = sd_bus_message_append(m, "(sv)", "Slice", "s", slice);
3155                 if (r < 0)
3156                         return r;
3157         }
3158
3159         if (!isempty(description)) {
3160                 r = sd_bus_message_append(m, "(sv)", "Description", "s", description);
3161                 if (r < 0)
3162                         return r;
3163         }
3164
3165         if (!isempty(after)) {
3166                 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after);
3167                 if (r < 0)
3168                         return r;
3169         }
3170
3171         if (!isempty(after2)) {
3172                 r = sd_bus_message_append(m, "(sv)", "After", "as", 1, after2);
3173                 if (r < 0)
3174                         return r;
3175         }
3176
3177         /* cgroup empty notification is not available in containers
3178          * currently. To make this less problematic, let's shorten the
3179          * stop timeout for sessions, so that we don't wait
3180          * forever. */
3181
3182         /* Make sure that the session shells are terminated with
3183          * SIGHUP since bash and friends tend to ignore SIGTERM */
3184         r = sd_bus_message_append(m, "(sv)", "SendSIGHUP", "b", true);
3185         if (r < 0)
3186                 return r;
3187
3188         r = sd_bus_message_append(m, "(sv)", "PIDs", "au", 1, pid);
3189         if (r < 0)
3190                 return r;
3191
3192         r = sd_bus_message_append(m, "(sv)", "TasksMax", "t", tasks_max);
3193         if (r < 0)
3194                 return r;
3195
3196         r = sd_bus_message_close_container(m);
3197         if (r < 0)
3198                 return r;
3199
3200         r = sd_bus_message_append(m, "a(sa(sv))", 0);
3201         if (r < 0)
3202                 return r;
3203
3204         r = sd_bus_call(manager->bus, m, 0, error, &reply);
3205         if (r < 0)
3206                 return r;
3207
3208         return strdup_job(reply, job);
3209 }
3210
3211 int manager_start_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
3212         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3213         int r;
3214
3215         assert(manager);
3216         assert(unit);
3217         assert(job);
3218
3219         r = sd_bus_call_method(
3220                         manager->bus,
3221                         "org.freedesktop.systemd1",
3222                         "/org/freedesktop/systemd1",
3223                         "org.freedesktop.systemd1.Manager",
3224                         "StartUnit",
3225                         error,
3226                         &reply,
3227                         "ss", unit, "replace");
3228         if (r < 0)
3229                 return r;
3230
3231         return strdup_job(reply, job);
3232 }
3233
3234 int manager_stop_unit(Manager *manager, const char *unit, sd_bus_error *error, char **job) {
3235         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3236         int r;
3237
3238         assert(manager);
3239         assert(unit);
3240         assert(job);
3241
3242         r = sd_bus_call_method(
3243                         manager->bus,
3244                         "org.freedesktop.systemd1",
3245                         "/org/freedesktop/systemd1",
3246                         "org.freedesktop.systemd1.Manager",
3247                         "StopUnit",
3248                         error,
3249                         &reply,
3250                         "ss", unit, "fail");
3251         if (r < 0) {
3252                 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
3253                     sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED)) {
3254
3255                         *job = NULL;
3256                         sd_bus_error_free(error);
3257                         return 0;
3258                 }
3259
3260                 return r;
3261         }
3262
3263         return strdup_job(reply, job);
3264 }
3265
3266 int manager_abandon_scope(Manager *manager, const char *scope, sd_bus_error *error) {
3267         _cleanup_free_ char *path = NULL;
3268         int r;
3269
3270         assert(manager);
3271         assert(scope);
3272
3273         path = unit_dbus_path_from_name(scope);
3274         if (!path)
3275                 return -ENOMEM;
3276
3277         r = sd_bus_call_method(
3278                         manager->bus,
3279                         "org.freedesktop.systemd1",
3280                         path,
3281                         "org.freedesktop.systemd1.Scope",
3282                         "Abandon",
3283                         error,
3284                         NULL,
3285                         NULL);
3286         if (r < 0) {
3287                 if (sd_bus_error_has_name(error, BUS_ERROR_NO_SUCH_UNIT) ||
3288                     sd_bus_error_has_name(error, BUS_ERROR_LOAD_FAILED) ||
3289                     sd_bus_error_has_name(error, BUS_ERROR_SCOPE_NOT_RUNNING)) {
3290                         sd_bus_error_free(error);
3291                         return 0;
3292                 }
3293
3294                 return r;
3295         }
3296
3297         return 1;
3298 }
3299
3300 int manager_kill_unit(Manager *manager, const char *unit, KillWho who, int signo, sd_bus_error *error) {
3301         assert(manager);
3302         assert(unit);
3303
3304         return sd_bus_call_method(
3305                         manager->bus,
3306                         "org.freedesktop.systemd1",
3307                         "/org/freedesktop/systemd1",
3308                         "org.freedesktop.systemd1.Manager",
3309                         "KillUnit",
3310                         error,
3311                         NULL,
3312                         "ssi", unit, who == KILL_LEADER ? "main" : "all", signo);
3313 }
3314
3315 int manager_unit_is_active(Manager *manager, const char *unit) {
3316         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3317         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3318         _cleanup_free_ char *path = NULL;
3319         const char *state;
3320         int r;
3321
3322         assert(manager);
3323         assert(unit);
3324
3325         path = unit_dbus_path_from_name(unit);
3326         if (!path)
3327                 return -ENOMEM;
3328
3329         r = sd_bus_get_property(
3330                         manager->bus,
3331                         "org.freedesktop.systemd1",
3332                         path,
3333                         "org.freedesktop.systemd1.Unit",
3334                         "ActiveState",
3335                         &error,
3336                         &reply,
3337                         "s");
3338         if (r < 0) {
3339                 /* systemd might have droppped off momentarily, let's
3340                  * not make this an error */
3341                 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
3342                     sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
3343                         return true;
3344
3345                 /* If the unit is already unloaded then it's not
3346                  * active */
3347                 if (sd_bus_error_has_name(&error, BUS_ERROR_NO_SUCH_UNIT) ||
3348                     sd_bus_error_has_name(&error, BUS_ERROR_LOAD_FAILED))
3349                         return false;
3350
3351                 return r;
3352         }
3353
3354         r = sd_bus_message_read(reply, "s", &state);
3355         if (r < 0)
3356                 return -EINVAL;
3357
3358         return !streq(state, "inactive") && !streq(state, "failed");
3359 }
3360
3361 int manager_job_is_active(Manager *manager, const char *path) {
3362         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
3363         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
3364         int r;
3365
3366         assert(manager);
3367         assert(path);
3368
3369         r = sd_bus_get_property(
3370                         manager->bus,
3371                         "org.freedesktop.systemd1",
3372                         path,
3373                         "org.freedesktop.systemd1.Job",
3374                         "State",
3375                         &error,
3376                         &reply,
3377                         "s");
3378         if (r < 0) {
3379                 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_NO_REPLY) ||
3380                     sd_bus_error_has_name(&error, SD_BUS_ERROR_DISCONNECTED))
3381                         return true;
3382
3383                 if (sd_bus_error_has_name(&error, SD_BUS_ERROR_UNKNOWN_OBJECT))
3384                         return false;
3385
3386                 return r;
3387         }
3388
3389         /* We don't actually care about the state really. The fact
3390          * that we could read the job state is enough for us */
3391
3392         return true;
3393 }
3394 #endif // 0