src/login/logind-dbus.c

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