src/login/logind-dbus.c

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