src/core/dbus-manager.c

   1 /* SPDX-License-Identifier: LGPL-2.1-or-later */
   2
   3 #include <errno.h>
   4 #include <sys/prctl.h>
   5 #include <sys/statvfs.h>
   6 #include <unistd.h>
   7
   8 #include "alloc-util.h"
   9 #include "architecture.h"
  10 #include "build.h"
  11 #include "bus-common-errors.h"
  12 #include "bus-get-properties.h"
  13 #include "bus-log-control-api.h"
  14 #include "chase-symlinks.h"
  15 #include "data-fd-util.h"
  16 #include "dbus-cgroup.h"
  17 #include "dbus-execute.h"
  18 #include "dbus-job.h"
  19 #include "dbus-manager.h"
  20 #include "dbus-scope.h"
  21 #include "dbus-service.h"
  22 #include "dbus-unit.h"
  23 #include "dbus.h"
  24 #include "env-util.h"
  25 #include "fd-util.h"
  26 #include "fileio.h"
  27 #include "format-util.h"
  28 #include "install.h"
  29 #include "log.h"
  30 #include "manager-dump.h"
  31 #include "os-util.h"
  32 #include "parse-util.h"
  33 #include "path-util.h"
  34 #include "process-util.h"
  35 #include "selinux-access.h"
  36 #include "stat-util.h"
  37 #include "string-util.h"
  38 #include "strv.h"
  39 #include "syslog-util.h"
  40 #include "user-util.h"
  41 #include "virt.h"
  42 #include "watchdog.h"
  43
  44 /* Require 16MiB free in /run/systemd for reloading/reexecing. After all we need to serialize our state
  45  * there, and if we can't we'll fail badly. */
  46 #define RELOAD_DISK_SPACE_MIN (UINT64_C(16) * UINT64_C(1024) * UINT64_C(1024))
  47
  48 static UnitFileFlags unit_file_bools_to_flags(bool runtime, bool force) {
  49         return (runtime ? UNIT_FILE_RUNTIME : 0) |
  50                (force   ? UNIT_FILE_FORCE   : 0);
  51 }
  52
  53 BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_oom_policy, oom_policy, OOMPolicy);
  54 BUS_DEFINE_PROPERTY_GET_ENUM(bus_property_get_emergency_action, emergency_action, EmergencyAction);
  55
  56 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_version, "s", GIT_VERSION);
  57 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_features, "s", systemd_features);
  58 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_architecture, "s", architecture_to_string(uname_architecture()));
  59 static BUS_DEFINE_PROPERTY_GET2(property_get_system_state, "s", Manager, manager_state, manager_state_to_string);
  60 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_timer_slack_nsec, "t", (uint64_t) prctl(PR_GET_TIMERSLACK));
  61 static BUS_DEFINE_PROPERTY_GET_REF(property_get_hashmap_size, "u", Hashmap *, hashmap_size);
  62 static BUS_DEFINE_PROPERTY_GET_REF(property_get_set_size, "u", Set *, set_size);
  63 static BUS_DEFINE_PROPERTY_GET(property_get_default_timeout_abort_usec, "t", Manager, manager_default_timeout_abort_usec);
  64 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_watchdog_device, "s", watchdog_get_device());
  65 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_watchdog_last_ping_realtime, "t", watchdog_get_last_ping(CLOCK_REALTIME));
  66 static BUS_DEFINE_PROPERTY_GET_GLOBAL(property_get_watchdog_last_ping_monotonic, "t", watchdog_get_last_ping(CLOCK_MONOTONIC));
  67
  68 static int property_get_virtualization(
  69                 sd_bus *bus,
  70                 const char *path,
  71                 const char *interface,
  72                 const char *property,
  73                 sd_bus_message *reply,
  74                 void *userdata,
  75                 sd_bus_error *error) {
  76
  77         Virtualization v;
  78
  79         assert(bus);
  80         assert(reply);
  81
  82         v = detect_virtualization();
  83
  84         /* Make sure to return the empty string when we detect no virtualization, as that is the API.
  85          *
  86          * https://github.com/systemd/systemd/issues/1423
  87          */
  88
  89         return sd_bus_message_append(
  90                         reply, "s",
  91                         v == VIRTUALIZATION_NONE ? NULL : virtualization_to_string(v));
  92 }
  93
  94 static int property_get_tainted(
  95                 sd_bus *bus,
  96                 const char *path,
  97                 const char *interface,
  98                 const char *property,
  99                 sd_bus_message *reply,
 100                 void *userdata,
 101                 sd_bus_error *error) {
 102
 103         _cleanup_free_ char *s = NULL;
 104         Manager *m = ASSERT_PTR(userdata);
 105
 106         assert(bus);
 107         assert(reply);
 108
 109         s = manager_taint_string(m);
 110         if (!s)
 111                 return log_oom();
 112
 113         return sd_bus_message_append(reply, "s", s);
 114 }
 115
 116 static int property_set_log_target(
 117                 sd_bus *bus,
 118                 const char *path,
 119                 const char *interface,
 120                 const char *property,
 121                 sd_bus_message *value,
 122                 void *userdata,
 123                 sd_bus_error *error) {
 124
 125         Manager *m = userdata;
 126         const char *t;
 127         int r;
 128
 129         assert(bus);
 130         assert(value);
 131
 132         r = sd_bus_message_read(value, "s", &t);
 133         if (r < 0)
 134                 return r;
 135
 136         if (isempty(t))
 137                 manager_restore_original_log_target(m);
 138         else {
 139                 LogTarget target;
 140
 141                 target = log_target_from_string(t);
 142                 if (target < 0)
 143                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid log target '%s'", t);
 144
 145                 manager_override_log_target(m, target);
 146         }
 147
 148         return 0;
 149 }
 150
 151 static int property_set_log_level(
 152                 sd_bus *bus,
 153                 const char *path,
 154                 const char *interface,
 155                 const char *property,
 156                 sd_bus_message *value,
 157                 void *userdata,
 158                 sd_bus_error *error) {
 159
 160         Manager *m = userdata;
 161         const char *t;
 162         int r;
 163
 164         assert(bus);
 165         assert(value);
 166
 167         r = sd_bus_message_read(value, "s", &t);
 168         if (r < 0)
 169                 return r;
 170
 171         if (isempty(t))
 172                 manager_restore_original_log_level(m);
 173         else {
 174                 int level;
 175
 176                 level = log_level_from_string(t);
 177                 if (level < 0)
 178                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid log level '%s'", t);
 179
 180                 manager_override_log_level(m, level);
 181         }
 182
 183         return 0;
 184 }
 185
 186 static int property_get_progress(
 187                 sd_bus *bus,
 188                 const char *path,
 189                 const char *interface,
 190                 const char *property,
 191                 sd_bus_message *reply,
 192                 void *userdata,
 193                 sd_bus_error *error) {
 194
 195         Manager *m = ASSERT_PTR(userdata);
 196         double d;
 197
 198         assert(bus);
 199         assert(reply);
 200
 201         if (MANAGER_IS_FINISHED(m))
 202                 d = 1.0;
 203         else
 204                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 205
 206         return sd_bus_message_append(reply, "d", d);
 207 }
 208
 209 static int property_get_environment(
 210                 sd_bus *bus,
 211                 const char *path,
 212                 const char *interface,
 213                 const char *property,
 214                 sd_bus_message *reply,
 215                 void *userdata,
 216                 sd_bus_error *error) {
 217
 218         _cleanup_strv_free_ char **l = NULL;
 219         Manager *m = ASSERT_PTR(userdata);
 220         int r;
 221
 222         assert(bus);
 223         assert(reply);
 224
 225         r = manager_get_effective_environment(m, &l);
 226         if (r < 0)
 227                 return r;
 228
 229         return sd_bus_message_append_strv(reply, l);
 230 }
 231
 232 static int property_get_show_status(
 233                 sd_bus *bus,
 234                 const char *path,
 235                 const char *interface,
 236                 const char *property,
 237                 sd_bus_message *reply,
 238                 void *userdata,
 239                 sd_bus_error *error) {
 240
 241         Manager *m = ASSERT_PTR(userdata);
 242
 243         assert(bus);
 244         assert(reply);
 245
 246         return sd_bus_message_append(reply, "b", manager_get_show_status_on(m));
 247 }
 248
 249 static int property_get_runtime_watchdog(
 250                 sd_bus *bus,
 251                 const char *path,
 252                 const char *interface,
 253                 const char *property,
 254                 sd_bus_message *reply,
 255                 void *userdata,
 256                 sd_bus_error *error) {
 257
 258         Manager *m = ASSERT_PTR(userdata);
 259
 260         assert(bus);
 261         assert(reply);
 262
 263         return sd_bus_message_append(reply, "t", manager_get_watchdog(m, WATCHDOG_RUNTIME));
 264 }
 265
 266 static int property_get_pretimeout_watchdog(
 267                 sd_bus *bus,
 268                 const char *path,
 269                 const char *interface,
 270                 const char *property,
 271                 sd_bus_message *reply,
 272                 void *userdata,
 273                 sd_bus_error *error) {
 274
 275         Manager *m = ASSERT_PTR(userdata);
 276
 277         assert(bus);
 278         assert(reply);
 279
 280         return sd_bus_message_append(reply, "t", manager_get_watchdog(m, WATCHDOG_PRETIMEOUT));
 281 }
 282
 283 static int property_get_pretimeout_watchdog_governor(
 284                 sd_bus *bus,
 285                 const char *path,
 286                 const char *interface,
 287                 const char *property,
 288                 sd_bus_message *reply,
 289                 void *userdata,
 290                 sd_bus_error *error) {
 291
 292         Manager *m = ASSERT_PTR(userdata);
 293
 294         assert(bus);
 295         assert(reply);
 296
 297         return sd_bus_message_append(reply, "s", m->watchdog_pretimeout_governor);
 298 }
 299
 300 static int property_get_reboot_watchdog(
 301                 sd_bus *bus,
 302                 const char *path,
 303                 const char *interface,
 304                 const char *property,
 305                 sd_bus_message *reply,
 306                 void *userdata,
 307                 sd_bus_error *error) {
 308
 309         Manager *m = ASSERT_PTR(userdata);
 310
 311         assert(bus);
 312         assert(reply);
 313
 314         return sd_bus_message_append(reply, "t", manager_get_watchdog(m, WATCHDOG_REBOOT));
 315 }
 316
 317 static int property_get_kexec_watchdog(
 318                 sd_bus *bus,
 319                 const char *path,
 320                 const char *interface,
 321                 const char *property,
 322                 sd_bus_message *reply,
 323                 void *userdata,
 324                 sd_bus_error *error) {
 325
 326         Manager *m = ASSERT_PTR(userdata);
 327
 328         assert(bus);
 329         assert(reply);
 330
 331         return sd_bus_message_append(reply, "t", manager_get_watchdog(m, WATCHDOG_KEXEC));
 332 }
 333
 334 static int property_set_watchdog(Manager *m, WatchdogType type, sd_bus_message *value) {
 335         usec_t timeout;
 336         int r;
 337
 338         assert(m);
 339         assert(value);
 340
 341         assert_cc(sizeof(usec_t) == sizeof(uint64_t));
 342
 343         r = sd_bus_message_read(value, "t", &timeout);
 344         if (r < 0)
 345                 return r;
 346
 347         manager_override_watchdog(m, type, timeout);
 348         return 0;
 349 }
 350
 351 static int property_set_runtime_watchdog(
 352                 sd_bus *bus,
 353                 const char *path,
 354                 const char *interface,
 355                 const char *property,
 356                 sd_bus_message *value,
 357                 void *userdata,
 358                 sd_bus_error *error) {
 359
 360         return property_set_watchdog(userdata, WATCHDOG_RUNTIME, value);
 361 }
 362
 363 static int property_set_pretimeout_watchdog(
 364                 sd_bus *bus,
 365                 const char *path,
 366                 const char *interface,
 367                 const char *property,
 368                 sd_bus_message *value,
 369                 void *userdata,
 370                 sd_bus_error *error) {
 371
 372         return property_set_watchdog(userdata, WATCHDOG_PRETIMEOUT, value);
 373 }
 374
 375 static int property_set_pretimeout_watchdog_governor(
 376                 sd_bus *bus,
 377                 const char *path,
 378                 const char *interface,
 379                 const char *property,
 380                 sd_bus_message *value,
 381                 void *userdata,
 382                 sd_bus_error *error) {
 383
 384         Manager *m = ASSERT_PTR(userdata);
 385         char *governor;
 386         int r;
 387
 388         r = sd_bus_message_read(value, "s", &governor);
 389         if (r < 0)
 390                 return r;
 391         if (!string_is_safe(governor))
 392                 return -EINVAL;
 393
 394         return manager_override_watchdog_pretimeout_governor(m, governor);
 395 }
 396
 397 static int property_set_reboot_watchdog(
 398                 sd_bus *bus,
 399                 const char *path,
 400                 const char *interface,
 401                 const char *property,
 402                 sd_bus_message *value,
 403                 void *userdata,
 404                 sd_bus_error *error) {
 405
 406         return property_set_watchdog(userdata, WATCHDOG_REBOOT, value);
 407 }
 408
 409 static int property_set_kexec_watchdog(
 410                 sd_bus *bus,
 411                 const char *path,
 412                 const char *interface,
 413                 const char *property,
 414                 sd_bus_message *value,
 415                 void *userdata,
 416                 sd_bus_error *error) {
 417
 418         _unused_ Manager *m = ASSERT_PTR(userdata);
 419
 420         assert(bus);
 421         assert(value);
 422
 423         return property_set_watchdog(userdata, WATCHDOG_KEXEC, value);
 424 }
 425
 426 static int property_get_oom_score_adjust(
 427                 sd_bus *bus,
 428                 const char *path,
 429                 const char *interface,
 430                 const char *property,
 431                 sd_bus_message *reply,
 432                 void *userdata,
 433                 sd_bus_error *error) {
 434
 435         Manager *m = ASSERT_PTR(userdata);
 436         int r, n;
 437
 438         assert(bus);
 439         assert(reply);
 440
 441         if (m->default_oom_score_adjust_set)
 442                 n = m->default_oom_score_adjust;
 443         else {
 444                 n = 0;
 445                 r = get_oom_score_adjust(&n);
 446                 if (r < 0)
 447                         log_debug_errno(r, "Failed to read current OOM score adjustment value, ignoring: %m");
 448         }
 449
 450         return sd_bus_message_append(reply, "i", n);
 451 }
 452
 453 static int bus_get_unit_by_name(Manager *m, sd_bus_message *message, const char *name, Unit **ret_unit, sd_bus_error *error) {
 454         Unit *u;
 455         int r;
 456
 457         assert(m);
 458         assert(message);
 459         assert(ret_unit);
 460
 461         /* More or less a wrapper around manager_get_unit() that generates nice errors and has one trick up
 462          * its sleeve: if the name is specified empty we use the client's unit. */
 463
 464         if (isempty(name)) {
 465                 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 466                 pid_t pid;
 467
 468                 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
 469                 if (r < 0)
 470                         return r;
 471
 472                 r = sd_bus_creds_get_pid(creds, &pid);
 473                 if (r < 0)
 474                         return r;
 475
 476                 u = manager_get_unit_by_pid(m, pid);
 477                 if (!u)
 478                         return sd_bus_error_set(error, BUS_ERROR_NO_SUCH_UNIT, "Client not member of any unit.");
 479         } else {
 480                 u = manager_get_unit(m, name);
 481                 if (!u)
 482                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s not loaded.", name);
 483         }
 484
 485         *ret_unit = u;
 486         return 0;
 487 }
 488
 489 static int bus_load_unit_by_name(Manager *m, sd_bus_message *message, const char *name, Unit **ret_unit, sd_bus_error *error) {
 490         assert(m);
 491         assert(message);
 492         assert(ret_unit);
 493
 494         /* Pretty much the same as bus_get_unit_by_name(), but we also load the unit if necessary. */
 495
 496         if (isempty(name))
 497                 return bus_get_unit_by_name(m, message, name, ret_unit, error);
 498
 499         return manager_load_unit(m, name, NULL, error, ret_unit);
 500 }
 501
 502 static int reply_unit_path(Unit *u, sd_bus_message *message, sd_bus_error *error) {
 503         _cleanup_free_ char *path = NULL;
 504         int r;
 505
 506         assert(u);
 507         assert(message);
 508
 509         r = mac_selinux_unit_access_check(u, message, "status", error);
 510         if (r < 0)
 511                 return r;
 512
 513         path = unit_dbus_path(u);
 514         if (!path)
 515                 return log_oom();
 516
 517         return sd_bus_reply_method_return(message, "o", path);
 518 }
 519
 520 static int method_get_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 521         Manager *m = ASSERT_PTR(userdata);
 522         const char *name;
 523         Unit *u;
 524         int r;
 525
 526         assert(message);
 527
 528         /* Anyone can call this method */
 529
 530         r = sd_bus_message_read(message, "s", &name);
 531         if (r < 0)
 532                 return r;
 533
 534         r = bus_get_unit_by_name(m, message, name, &u, error);
 535         if (r < 0)
 536                 return r;
 537
 538         return reply_unit_path(u, message, error);
 539 }
 540
 541 static int method_get_unit_by_pid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 542         Manager *m = ASSERT_PTR(userdata);
 543         pid_t pid;
 544         Unit *u;
 545         int r;
 546
 547         assert(message);
 548
 549         assert_cc(sizeof(pid_t) == sizeof(uint32_t));
 550
 551         /* Anyone can call this method */
 552
 553         r = sd_bus_message_read(message, "u", &pid);
 554         if (r < 0)
 555                 return r;
 556         if (pid < 0)
 557                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid PID " PID_FMT, pid);
 558
 559         if (pid == 0) {
 560                 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 561
 562                 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
 563                 if (r < 0)
 564                         return r;
 565
 566                 r = sd_bus_creds_get_pid(creds, &pid);
 567                 if (r < 0)
 568                         return r;
 569         }
 570
 571         u = manager_get_unit_by_pid(m, pid);
 572         if (!u)
 573                 return sd_bus_error_setf(error, BUS_ERROR_NO_UNIT_FOR_PID, "PID "PID_FMT" does not belong to any loaded unit.", pid);
 574
 575         return reply_unit_path(u, message, error);
 576 }
 577
 578 static int method_get_unit_by_invocation_id(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 579         _cleanup_free_ char *path = NULL;
 580         Manager *m = ASSERT_PTR(userdata);
 581         sd_id128_t id;
 582         const void *a;
 583         Unit *u;
 584         size_t sz;
 585         int r;
 586
 587         assert(message);
 588
 589         /* Anyone can call this method */
 590
 591         r = sd_bus_message_read_array(message, 'y', &a, &sz);
 592         if (r < 0)
 593                 return r;
 594         if (sz == 0)
 595                 id = SD_ID128_NULL;
 596         else if (sz == 16)
 597                 memcpy(&id, a, sz);
 598         else
 599                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid invocation ID");
 600
 601         if (sd_id128_is_null(id)) {
 602                 _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
 603                 pid_t pid;
 604
 605                 r = sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID, &creds);
 606                 if (r < 0)
 607                         return r;
 608
 609                 r = sd_bus_creds_get_pid(creds, &pid);
 610                 if (r < 0)
 611                         return r;
 612
 613                 u = manager_get_unit_by_pid(m, pid);
 614                 if (!u)
 615                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT,
 616                                                  "Client " PID_FMT " not member of any unit.", pid);
 617         } else {
 618                 u = hashmap_get(m->units_by_invocation_id, &id);
 619                 if (!u)
 620                         return sd_bus_error_setf(error, BUS_ERROR_NO_UNIT_FOR_INVOCATION_ID, "No unit with the specified invocation ID " SD_ID128_FORMAT_STR " known.", SD_ID128_FORMAT_VAL(id));
 621         }
 622
 623         r = mac_selinux_unit_access_check(u, message, "status", error);
 624         if (r < 0)
 625                 return r;
 626
 627         /* So here's a special trick: the bus path we return actually references the unit by its invocation
 628          * ID instead of the unit name. This means it stays valid only as long as the invocation ID stays the
 629          * same. */
 630         path = unit_dbus_path_invocation_id(u);
 631         if (!path)
 632                 return -ENOMEM;
 633
 634         return sd_bus_reply_method_return(message, "o", path);
 635 }
 636
 637 static int method_get_unit_by_control_group(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 638         Manager *m = userdata;
 639         const char *cgroup;
 640         Unit *u;
 641         int r;
 642
 643         r = sd_bus_message_read(message, "s", &cgroup);
 644         if (r < 0)
 645                 return r;
 646
 647         u = manager_get_unit_by_cgroup(m, cgroup);
 648         if (!u)
 649                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT,
 650                                          "Control group '%s' is not valid or not managed by this instance",
 651                                          cgroup);
 652
 653         return reply_unit_path(u, message, error);
 654 }
 655
 656 static int method_load_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 657         Manager *m = ASSERT_PTR(userdata);
 658         const char *name;
 659         Unit *u;
 660         int r;
 661
 662         assert(message);
 663
 664         /* Anyone can call this method */
 665
 666         r = sd_bus_message_read(message, "s", &name);
 667         if (r < 0)
 668                 return r;
 669
 670         r = bus_load_unit_by_name(m, message, name, &u, error);
 671         if (r < 0)
 672                 return r;
 673
 674         return reply_unit_path(u, message, error);
 675 }
 676
 677 static int method_start_unit_generic(sd_bus_message *message, Manager *m, JobType job_type, bool reload_if_possible, sd_bus_error *error) {
 678         const char *name;
 679         Unit *u;
 680         int r;
 681
 682         assert(message);
 683         assert(m);
 684
 685         r = sd_bus_message_read(message, "s", &name);
 686         if (r < 0)
 687                 return r;
 688
 689         r = manager_load_unit(m, name, NULL, error, &u);
 690         if (r < 0)
 691                 return r;
 692
 693         return bus_unit_method_start_generic(message, u, job_type, reload_if_possible, error);
 694 }
 695
 696 static int method_start_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 697         return method_start_unit_generic(message, userdata, JOB_START, /* reload_if_possible = */ false, error);
 698 }
 699
 700 static int method_stop_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 701         return method_start_unit_generic(message, userdata, JOB_STOP, /* reload_if_possible = */ false, error);
 702 }
 703
 704 static int method_reload_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 705         return method_start_unit_generic(message, userdata, JOB_RELOAD, /* reload_if_possible = */ false, error);
 706 }
 707
 708 static int method_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 709         return method_start_unit_generic(message, userdata, JOB_RESTART, /* reload_if_possible = */ false, error);
 710 }
 711
 712 static int method_try_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 713         return method_start_unit_generic(message, userdata, JOB_TRY_RESTART, /* reload_if_possible = */ false, error);
 714 }
 715
 716 static int method_reload_or_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 717         return method_start_unit_generic(message, userdata, JOB_RESTART, /* reload_if_possible = */ true, error);
 718 }
 719
 720 static int method_reload_or_try_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 721         return method_start_unit_generic(message, userdata, JOB_TRY_RESTART, /* reload_if_possible = */ true, error);
 722 }
 723
 724 typedef enum GenericUnitOperationFlags {
 725         GENERIC_UNIT_LOAD            = 1 << 0, /* Load if the unit is not loaded yet */
 726         GENERIC_UNIT_VALIDATE_LOADED = 1 << 1, /* Verify unit is properly loaded before forwarding call */
 727 } GenericUnitOperationFlags;
 728
 729 static int method_generic_unit_operation(
 730                 sd_bus_message *message,
 731                 Manager *m,
 732                 sd_bus_error *error,
 733                 sd_bus_message_handler_t handler,
 734                 GenericUnitOperationFlags flags) {
 735
 736         const char *name;
 737         Unit *u;
 738         int r;
 739
 740         assert(message);
 741         assert(m);
 742
 743         /* Read the first argument from the command and pass the operation to the specified per-unit
 744          * method. */
 745
 746         r = sd_bus_message_read(message, "s", &name);
 747         if (r < 0)
 748                 return r;
 749
 750         if (!isempty(name) && FLAGS_SET(flags, GENERIC_UNIT_LOAD))
 751                 r = manager_load_unit(m, name, NULL, error, &u);
 752         else
 753                 r = bus_get_unit_by_name(m, message, name, &u, error);
 754         if (r < 0)
 755                 return r;
 756
 757         if (FLAGS_SET(flags, GENERIC_UNIT_VALIDATE_LOADED)) {
 758                 r = bus_unit_validate_load_state(u, error);
 759                 if (r < 0)
 760                         return r;
 761         }
 762
 763         return handler(message, u, error);
 764 }
 765
 766 static int method_enqueue_unit_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 767         /* We don't bother with GENERIC_UNIT_VALIDATE_LOADED here, as the job logic validates that anyway */
 768         return method_generic_unit_operation(message, userdata, error, bus_unit_method_enqueue_job, GENERIC_UNIT_LOAD);
 769 }
 770
 771 static int method_start_unit_replace(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 772         Manager *m = ASSERT_PTR(userdata);
 773         const char *old_name;
 774         Unit *u;
 775         int r;
 776
 777         assert(message);
 778
 779         r = sd_bus_message_read(message, "s", &old_name);
 780         if (r < 0)
 781                 return r;
 782
 783         r = bus_get_unit_by_name(m, message, old_name, &u, error);
 784         if (r < 0)
 785                 return r;
 786         if (!u->job || u->job->type != JOB_START)
 787                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
 788
 789         return method_start_unit_generic(message, m, JOB_START, /* reload_if_possible = */ false, error);
 790 }
 791
 792 static int method_kill_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 793         /* We don't bother with GENERIC_UNIT_LOAD nor GENERIC_UNIT_VALIDATE_LOADED here, as it shouldn't
 794          * matter whether a unit is loaded for killing any processes possibly in the unit's cgroup. */
 795         return method_generic_unit_operation(message, userdata, error, bus_unit_method_kill, 0);
 796 }
 797
 798 static int method_clean_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 799         /* Load the unit if necessary, in order to load it, and insist on the unit being loaded to be
 800          * cleaned */
 801         return method_generic_unit_operation(message, userdata, error, bus_unit_method_clean, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 802 }
 803
 804 static int method_freeze_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 805         return method_generic_unit_operation(message, userdata, error, bus_unit_method_freeze, 0);
 806 }
 807
 808 static int method_thaw_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 809         return method_generic_unit_operation(message, userdata, error, bus_unit_method_thaw, 0);
 810 }
 811
 812 static int method_reset_failed_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 813         /* Don't load the unit (because unloaded units can't be in failed state), and don't insist on the
 814          * unit to be loaded properly (since a failed unit might have its unit file disappeared) */
 815         return method_generic_unit_operation(message, userdata, error, bus_unit_method_reset_failed, 0);
 816 }
 817
 818 static int method_set_unit_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 819         /* Only change properties on fully loaded units, and load them in order to set properties */
 820         return method_generic_unit_operation(message, userdata, error, bus_unit_method_set_properties, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 821 }
 822
 823 static int method_bind_mount_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 824         /* Only add mounts on fully loaded units */
 825         return method_generic_unit_operation(message, userdata, error, bus_service_method_bind_mount, GENERIC_UNIT_VALIDATE_LOADED);
 826 }
 827
 828 static int method_mount_image_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 829         /* Only add mounts on fully loaded units */
 830         return method_generic_unit_operation(message, userdata, error, bus_service_method_mount_image, GENERIC_UNIT_VALIDATE_LOADED);
 831 }
 832
 833 static int method_ref_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 834         /* Only allow reffing of fully loaded units, and make sure reffing a unit loads it. */
 835         return method_generic_unit_operation(message, userdata, error, bus_unit_method_ref, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 836 }
 837
 838 static int method_unref_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 839         /* Dropping a ref OTOH should not require the unit to still be loaded. And since a reffed unit is a
 840          * loaded unit there's no need to load the unit for unreffing it. */
 841         return method_generic_unit_operation(message, userdata, error, bus_unit_method_unref, 0);
 842 }
 843
 844 static int reply_unit_info(sd_bus_message *reply, Unit *u) {
 845         _cleanup_free_ char *unit_path = NULL, *job_path = NULL;
 846         Unit *following;
 847
 848         following = unit_following(u);
 849
 850         unit_path = unit_dbus_path(u);
 851         if (!unit_path)
 852                 return -ENOMEM;
 853
 854         if (u->job) {
 855                 job_path = job_dbus_path(u->job);
 856                 if (!job_path)
 857                         return -ENOMEM;
 858         }
 859
 860         return sd_bus_message_append(
 861                         reply, "(ssssssouso)",
 862                         u->id,
 863                         unit_description(u),
 864                         unit_load_state_to_string(u->load_state),
 865                         unit_active_state_to_string(unit_active_state(u)),
 866                         unit_sub_state_to_string(u),
 867                         following ? following->id : "",
 868                         unit_path,
 869                         u->job ? u->job->id : 0,
 870                         u->job ? job_type_to_string(u->job->type) : "",
 871                         empty_to_root(job_path));
 872 }
 873
 874 static int method_list_units_by_names(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 875         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 876         Manager *m = ASSERT_PTR(userdata);
 877         int r;
 878         _cleanup_strv_free_ char **units = NULL;
 879
 880         assert(message);
 881
 882         r = sd_bus_message_read_strv(message, &units);
 883         if (r < 0)
 884                 return r;
 885
 886         r = sd_bus_message_new_method_return(message, &reply);
 887         if (r < 0)
 888                 return r;
 889
 890         r = sd_bus_message_open_container(reply, 'a', "(ssssssouso)");
 891         if (r < 0)
 892                 return r;
 893
 894         STRV_FOREACH(unit, units) {
 895                 Unit *u;
 896
 897                 if (!unit_name_is_valid(*unit, UNIT_NAME_ANY))
 898                         continue;
 899
 900                 r = bus_load_unit_by_name(m, message, *unit, &u, error);
 901                 if (r < 0)
 902                         return r;
 903
 904                 r = reply_unit_info(reply, u);
 905                 if (r < 0)
 906                         return r;
 907         }
 908
 909         r = sd_bus_message_close_container(reply);
 910         if (r < 0)
 911                 return r;
 912
 913         return sd_bus_send(NULL, reply, NULL);
 914 }
 915
 916 static int method_get_unit_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 917         /* Don't load a unit (since it won't have any processes if it's not loaded), but don't insist on the
 918          * unit being loaded (because even improperly loaded units might still have processes around */
 919         return method_generic_unit_operation(message, userdata, error, bus_unit_method_get_processes, 0);
 920 }
 921
 922 static int method_attach_processes_to_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 923         /* Don't allow attaching new processes to units that aren't loaded. Don't bother with loading a unit
 924          * for this purpose though, as an unloaded unit is a stopped unit, and we don't allow attaching
 925          * processes to stopped units anyway. */
 926         return method_generic_unit_operation(message, userdata, error, bus_unit_method_attach_processes, GENERIC_UNIT_VALIDATE_LOADED);
 927 }
 928
 929 static int transient_unit_from_message(
 930                 Manager *m,
 931                 sd_bus_message *message,
 932                 const char *name,
 933                 Unit **unit,
 934                 sd_bus_error *error) {
 935
 936         UnitType t;
 937         Unit *u;
 938         int r;
 939
 940         assert(m);
 941         assert(message);
 942         assert(name);
 943
 944         t = unit_name_to_type(name);
 945         if (t < 0)
 946                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
 947                                          "Invalid unit name or type.");
 948
 949         if (!unit_vtable[t]->can_transient)
 950                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
 951                                          "Unit type %s does not support transient units.",
 952                                          unit_type_to_string(t));
 953
 954         r = manager_load_unit(m, name, NULL, error, &u);
 955         if (r < 0)
 956                 return r;
 957
 958         if (!unit_is_pristine(u))
 959                 return sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
 960                                          "Unit %s was already loaded or has a fragment file.", name);
 961
 962         /* OK, the unit failed to load and is unreferenced, now let's
 963          * fill in the transient data instead */
 964         r = unit_make_transient(u);
 965         if (r < 0)
 966                 return r;
 967
 968         /* Set our properties */
 969         r = bus_unit_set_properties(u, message, UNIT_RUNTIME, false, error);
 970         if (r < 0)
 971                 return r;
 972
 973         /* If the client asked for it, automatically add a reference to this unit. */
 974         if (u->bus_track_add) {
 975                 r = bus_unit_track_add_sender(u, message);
 976                 if (r < 0)
 977                         return log_error_errno(r, "Failed to watch sender: %m");
 978         }
 979
 980         /* Now load the missing bits of the unit we just created */
 981         unit_add_to_load_queue(u);
 982         manager_dispatch_load_queue(m);
 983
 984         *unit = u;
 985
 986         return 0;
 987 }
 988
 989 static int transient_aux_units_from_message(
 990                 Manager *m,
 991                 sd_bus_message *message,
 992                 sd_bus_error *error) {
 993
 994         int r;
 995
 996         assert(m);
 997         assert(message);
 998
 999         r = sd_bus_message_enter_container(message, 'a', "(sa(sv))");
1000         if (r < 0)
1001                 return r;
1002
1003         while ((r = sd_bus_message_enter_container(message, 'r', "sa(sv)")) > 0) {
1004                 const char *name = NULL;
1005                 Unit *u;
1006
1007                 r = sd_bus_message_read(message, "s", &name);
1008                 if (r < 0)
1009                         return r;
1010
1011                 r = transient_unit_from_message(m, message, name, &u, error);
1012                 if (r < 0)
1013                         return r;
1014
1015                 r = sd_bus_message_exit_container(message);
1016                 if (r < 0)
1017                         return r;
1018         }
1019         if (r < 0)
1020                 return r;
1021
1022         r = sd_bus_message_exit_container(message);
1023         if (r < 0)
1024                 return r;
1025
1026         return 0;
1027 }
1028
1029 static int method_start_transient_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1030         const char *name, *smode;
1031         Manager *m = ASSERT_PTR(userdata);
1032         JobMode mode;
1033         Unit *u;
1034         int r;
1035
1036         assert(message);
1037
1038         r = mac_selinux_access_check(message, "start", error);
1039         if (r < 0)
1040                 return r;
1041
1042         r = sd_bus_message_read(message, "ss", &name, &smode);
1043         if (r < 0)
1044                 return r;
1045
1046         mode = job_mode_from_string(smode);
1047         if (mode < 0)
1048                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s is invalid.", smode);
1049
1050         r = bus_verify_manage_units_async(m, message, error);
1051         if (r < 0)
1052                 return r;
1053         if (r == 0)
1054                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1055
1056         r = transient_unit_from_message(m, message, name, &u, error);
1057         if (r < 0)
1058                 return r;
1059
1060         r = transient_aux_units_from_message(m, message, error);
1061         if (r < 0)
1062                 return r;
1063
1064         /* Finally, start it */
1065         return bus_unit_queue_job(message, u, JOB_START, mode, 0, error);
1066 }
1067
1068 static int method_get_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1069         _cleanup_free_ char *path = NULL;
1070         Manager *m = ASSERT_PTR(userdata);
1071         uint32_t id;
1072         Job *j;
1073         int r;
1074
1075         assert(message);
1076
1077         /* Anyone can call this method */
1078
1079         r = sd_bus_message_read(message, "u", &id);
1080         if (r < 0)
1081                 return r;
1082
1083         j = manager_get_job(m, id);
1084         if (!j)
1085                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
1086
1087         r = mac_selinux_unit_access_check(j->unit, message, "status", error);
1088         if (r < 0)
1089                 return r;
1090
1091         path = job_dbus_path(j);
1092         if (!path)
1093                 return -ENOMEM;
1094
1095         return sd_bus_reply_method_return(message, "o", path);
1096 }
1097
1098 static int method_cancel_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1099         Manager *m = ASSERT_PTR(userdata);
1100         uint32_t id;
1101         Job *j;
1102         int r;
1103
1104         assert(message);
1105
1106         r = sd_bus_message_read(message, "u", &id);
1107         if (r < 0)
1108                 return r;
1109
1110         j = manager_get_job(m, id);
1111         if (!j)
1112                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
1113
1114         return bus_job_method_cancel(message, j, error);
1115 }
1116
1117 static int method_clear_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1118         Manager *m = ASSERT_PTR(userdata);
1119         int r;
1120
1121         assert(message);
1122
1123         r = mac_selinux_access_check(message, "reload", error);
1124         if (r < 0)
1125                 return r;
1126
1127         r = bus_verify_manage_units_async(m, message, error);
1128         if (r < 0)
1129                 return r;
1130         if (r == 0)
1131                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1132
1133         manager_clear_jobs(m);
1134
1135         return sd_bus_reply_method_return(message, NULL);
1136 }
1137
1138 static int method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1139         Manager *m = ASSERT_PTR(userdata);
1140         int r;
1141
1142         assert(message);
1143
1144         r = mac_selinux_access_check(message, "reload", error);
1145         if (r < 0)
1146                 return r;
1147
1148         r = bus_verify_manage_units_async(m, message, error);
1149         if (r < 0)
1150                 return r;
1151         if (r == 0)
1152                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1153
1154         manager_reset_failed(m);
1155
1156         return sd_bus_reply_method_return(message, NULL);
1157 }
1158
1159 static int list_units_filtered(sd_bus_message *message, void *userdata, sd_bus_error *error, char **states, char **patterns) {
1160         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1161         Manager *m = ASSERT_PTR(userdata);
1162         const char *k;
1163         Unit *u;
1164         int r;
1165
1166         assert(message);
1167
1168         /* Anyone can call this method */
1169
1170         r = mac_selinux_access_check(message, "status", error);
1171         if (r < 0)
1172                 return r;
1173
1174         r = sd_bus_message_new_method_return(message, &reply);
1175         if (r < 0)
1176                 return r;
1177
1178         r = sd_bus_message_open_container(reply, 'a', "(ssssssouso)");
1179         if (r < 0)
1180                 return r;
1181
1182         HASHMAP_FOREACH_KEY(u, k, m->units) {
1183                 if (k != u->id)
1184                         continue;
1185
1186                 if (!strv_isempty(states) &&
1187                     !strv_contains(states, unit_load_state_to_string(u->load_state)) &&
1188                     !strv_contains(states, unit_active_state_to_string(unit_active_state(u))) &&
1189                     !strv_contains(states, unit_sub_state_to_string(u)))
1190                         continue;
1191
1192                 if (!strv_isempty(patterns) &&
1193                     !strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE))
1194                         continue;
1195
1196                 r = reply_unit_info(reply, u);
1197                 if (r < 0)
1198                         return r;
1199         }
1200
1201         r = sd_bus_message_close_container(reply);
1202         if (r < 0)
1203                 return r;
1204
1205         return sd_bus_send(NULL, reply, NULL);
1206 }
1207
1208 static int method_list_units(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1209         return list_units_filtered(message, userdata, error, NULL, NULL);
1210 }
1211
1212 static int method_list_units_filtered(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1213         _cleanup_strv_free_ char **states = NULL;
1214         int r;
1215
1216         r = sd_bus_message_read_strv(message, &states);
1217         if (r < 0)
1218                 return r;
1219
1220         return list_units_filtered(message, userdata, error, states, NULL);
1221 }
1222
1223 static int method_list_units_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1224         _cleanup_strv_free_ char **states = NULL;
1225         _cleanup_strv_free_ char **patterns = NULL;
1226         int r;
1227
1228         r = sd_bus_message_read_strv(message, &states);
1229         if (r < 0)
1230                 return r;
1231
1232         r = sd_bus_message_read_strv(message, &patterns);
1233         if (r < 0)
1234                 return r;
1235
1236         return list_units_filtered(message, userdata, error, states, patterns);
1237 }
1238
1239 static int method_list_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1240         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1241         Manager *m = ASSERT_PTR(userdata);
1242         Job *j;
1243         int r;
1244
1245         assert(message);
1246
1247         /* Anyone can call this method */
1248
1249         r = mac_selinux_access_check(message, "status", error);
1250         if (r < 0)
1251                 return r;
1252
1253         r = sd_bus_message_new_method_return(message, &reply);
1254         if (r < 0)
1255                 return r;
1256
1257         r = sd_bus_message_open_container(reply, 'a', "(usssoo)");
1258         if (r < 0)
1259                 return r;
1260
1261         HASHMAP_FOREACH(j, m->jobs) {
1262                 _cleanup_free_ char *unit_path = NULL, *job_path = NULL;
1263
1264                 job_path = job_dbus_path(j);
1265                 if (!job_path)
1266                         return -ENOMEM;
1267
1268                 unit_path = unit_dbus_path(j->unit);
1269                 if (!unit_path)
1270                         return -ENOMEM;
1271
1272                 r = sd_bus_message_append(
1273                                 reply, "(usssoo)",
1274                                 j->id,
1275                                 j->unit->id,
1276                                 job_type_to_string(j->type),
1277                                 job_state_to_string(j->state),
1278                                 job_path,
1279                                 unit_path);
1280                 if (r < 0)
1281                         return r;
1282         }
1283
1284         r = sd_bus_message_close_container(reply);
1285         if (r < 0)
1286                 return r;
1287
1288         return sd_bus_send(NULL, reply, NULL);
1289 }
1290
1291 static int method_subscribe(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1292         Manager *m = ASSERT_PTR(userdata);
1293         int r;
1294
1295         assert(message);
1296
1297         /* Anyone can call this method */
1298
1299         r = mac_selinux_access_check(message, "status", error);
1300         if (r < 0)
1301                 return r;
1302
1303         if (sd_bus_message_get_bus(message) == m->api_bus) {
1304
1305                 /* Note that direct bus connection subscribe by
1306                  * default, we only track peers on the API bus here */
1307
1308                 if (!m->subscribed) {
1309                         r = sd_bus_track_new(sd_bus_message_get_bus(message), &m->subscribed, NULL, NULL);
1310                         if (r < 0)
1311                                 return r;
1312                 }
1313
1314                 r = sd_bus_track_add_sender(m->subscribed, message);
1315                 if (r < 0)
1316                         return r;
1317                 if (r == 0)
1318                         return sd_bus_error_set(error, BUS_ERROR_ALREADY_SUBSCRIBED, "Client is already subscribed.");
1319         }
1320
1321         return sd_bus_reply_method_return(message, NULL);
1322 }
1323
1324 static int method_unsubscribe(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1325         Manager *m = ASSERT_PTR(userdata);
1326         int r;
1327
1328         assert(message);
1329
1330         /* Anyone can call this method */
1331
1332         r = mac_selinux_access_check(message, "status", error);
1333         if (r < 0)
1334                 return r;
1335
1336         if (sd_bus_message_get_bus(message) == m->api_bus) {
1337                 r = sd_bus_track_remove_sender(m->subscribed, message);
1338                 if (r < 0)
1339                         return r;
1340                 if (r == 0)
1341                         return sd_bus_error_set(error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
1342         }
1343
1344         return sd_bus_reply_method_return(message, NULL);
1345 }
1346
1347 static int dump_impl(
1348                 sd_bus_message *message,
1349                 void *userdata,
1350                 sd_bus_error *error,
1351                 char **patterns,
1352                 int (*reply)(sd_bus_message *, char *)) {
1353
1354         _cleanup_free_ char *dump = NULL;
1355         Manager *m = ASSERT_PTR(userdata);
1356         int r;
1357
1358         assert(message);
1359
1360         /* Anyone can call this method */
1361
1362         r = mac_selinux_access_check(message, "status", error);
1363         if (r < 0)
1364                 return r;
1365
1366         r = manager_get_dump_string(m, patterns, &dump);
1367         if (r < 0)
1368                 return r;
1369
1370         return reply(message, dump);
1371 }
1372
1373 static int reply_dump(sd_bus_message *message, char *dump) {
1374         return sd_bus_reply_method_return(message, "s", dump);
1375 }
1376
1377 static int method_dump(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1378         return dump_impl(message, userdata, error, NULL, reply_dump);
1379 }
1380
1381 static int reply_dump_by_fd(sd_bus_message *message, char *dump) {
1382         _cleanup_close_ int fd = -1;
1383
1384         fd = acquire_data_fd(dump, strlen(dump), 0);
1385         if (fd < 0)
1386                 return fd;
1387
1388         return sd_bus_reply_method_return(message, "h", fd);
1389 }
1390
1391 static int method_dump_by_fd(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1392         return dump_impl(message, userdata, error, NULL, reply_dump_by_fd);
1393 }
1394
1395 static int dump_units_matching_patterns(
1396                 sd_bus_message *message,
1397                 void *userdata,
1398                 sd_bus_error *error,
1399                 int (*reply)(sd_bus_message *, char *)) {
1400         _cleanup_strv_free_ char **patterns = NULL;
1401         int r;
1402
1403         r = sd_bus_message_read_strv(message, &patterns);
1404         if (r < 0)
1405                 return r;
1406
1407         return dump_impl(message, userdata, error, patterns, reply);
1408 }
1409
1410 static int method_dump_units_matching_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1411         return dump_units_matching_patterns(message, userdata, error, reply_dump);
1412 }
1413
1414 static int method_dump_units_matching_patterns_by_fd(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1415         return dump_units_matching_patterns(message, userdata, error, reply_dump_by_fd);
1416 }
1417
1418 static int method_refuse_snapshot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1419         return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Support for snapshots has been removed.");
1420 }
1421
1422 static int verify_run_space(const char *message, sd_bus_error *error) {
1423         struct statvfs svfs;
1424         uint64_t available;
1425
1426         if (statvfs("/run/systemd", &svfs) < 0)
1427                 return sd_bus_error_set_errnof(error, errno, "Failed to statvfs(/run/systemd): %m");
1428
1429         available = (uint64_t) svfs.f_bfree * (uint64_t) svfs.f_bsize;
1430
1431         if (available < RELOAD_DISK_SPACE_MIN)
1432                 return sd_bus_error_setf(error,
1433                                          BUS_ERROR_DISK_FULL,
1434                                          "%s, not enough space available on /run/systemd. "
1435                                          "Currently, %s are free, but a safety buffer of %s is enforced.",
1436                                          message,
1437                                          FORMAT_BYTES(available),
1438                                          FORMAT_BYTES(RELOAD_DISK_SPACE_MIN));
1439
1440         return 0;
1441 }
1442
1443 int verify_run_space_and_log(const char *message) {
1444         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1445         int r;
1446
1447         r = verify_run_space(message, &error);
1448         if (r < 0)
1449                 return log_error_errno(r, "%s", bus_error_message(&error, r));
1450
1451         return 0;
1452 }
1453
1454 static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1455         Manager *m = ASSERT_PTR(userdata);
1456         int r;
1457
1458         assert(message);
1459
1460         r = verify_run_space("Refusing to reload", error);
1461         if (r < 0)
1462                 return r;
1463
1464         r = mac_selinux_access_check(message, "reload", error);
1465         if (r < 0)
1466                 return r;
1467
1468         r = bus_verify_reload_daemon_async(m, message, error);
1469         if (r < 0)
1470                 return r;
1471         if (r == 0)
1472                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1473
1474         /* Instead of sending the reply back right away, we just
1475          * remember that we need to and then send it after the reload
1476          * is finished. That way the caller knows when the reload
1477          * finished. */
1478
1479         assert(!m->pending_reload_message);
1480         r = sd_bus_message_new_method_return(message, &m->pending_reload_message);
1481         if (r < 0)
1482                 return r;
1483
1484         m->objective = MANAGER_RELOAD;
1485
1486         return 1;
1487 }
1488
1489 static int method_reexecute(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1490         Manager *m = ASSERT_PTR(userdata);
1491         int r;
1492
1493         assert(message);
1494
1495         r = verify_run_space("Refusing to reexecute", error);
1496         if (r < 0)
1497                 return r;
1498
1499         r = mac_selinux_access_check(message, "reload", error);
1500         if (r < 0)
1501                 return r;
1502
1503         r = bus_verify_reload_daemon_async(m, message, error);
1504         if (r < 0)
1505                 return r;
1506         if (r == 0)
1507                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1508
1509         /* We don't send a reply back here, the client should
1510          * just wait for us disconnecting. */
1511
1512         m->objective = MANAGER_REEXECUTE;
1513         return 1;
1514 }
1515
1516 static int method_exit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1517         Manager *m = ASSERT_PTR(userdata);
1518         int r;
1519
1520         assert(message);
1521
1522         r = mac_selinux_access_check(message, "halt", error);
1523         if (r < 0)
1524                 return r;
1525
1526         /* Exit() (in contrast to SetExitCode()) is actually allowed even if
1527          * we are running on the host. It will fall back on reboot() in
1528          * systemd-shutdown if it cannot do the exit() because it isn't a
1529          * container. */
1530
1531         m->objective = MANAGER_EXIT;
1532
1533         return sd_bus_reply_method_return(message, NULL);
1534 }
1535
1536 static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1537         Manager *m = ASSERT_PTR(userdata);
1538         int r;
1539
1540         assert(message);
1541
1542         r = mac_selinux_access_check(message, "reboot", error);
1543         if (r < 0)
1544                 return r;
1545
1546         if (!MANAGER_IS_SYSTEM(m))
1547                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1548                                          "Reboot is only supported for system managers.");
1549
1550         m->objective = MANAGER_REBOOT;
1551
1552         return sd_bus_reply_method_return(message, NULL);
1553 }
1554
1555 static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1556         Manager *m = ASSERT_PTR(userdata);
1557         int r;
1558
1559         assert(message);
1560
1561         r = mac_selinux_access_check(message, "halt", error);
1562         if (r < 0)
1563                 return r;
1564
1565         if (!MANAGER_IS_SYSTEM(m))
1566                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1567                                          "Powering off is only supported for system managers.");
1568
1569         m->objective = MANAGER_POWEROFF;
1570
1571         return sd_bus_reply_method_return(message, NULL);
1572 }
1573
1574 static int method_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1575         Manager *m = ASSERT_PTR(userdata);
1576         int r;
1577
1578         assert(message);
1579
1580         r = mac_selinux_access_check(message, "halt", error);
1581         if (r < 0)
1582                 return r;
1583
1584         if (!MANAGER_IS_SYSTEM(m))
1585                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1586                                          "Halt is only supported for system managers.");
1587
1588         m->objective = MANAGER_HALT;
1589
1590         return sd_bus_reply_method_return(message, NULL);
1591 }
1592
1593 static int method_kexec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1594         Manager *m = ASSERT_PTR(userdata);
1595         int r;
1596
1597         assert(message);
1598
1599         r = mac_selinux_access_check(message, "reboot", error);
1600         if (r < 0)
1601                 return r;
1602
1603         if (!MANAGER_IS_SYSTEM(m))
1604                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1605                                          "KExec is only supported for system managers.");
1606
1607         m->objective = MANAGER_KEXEC;
1608
1609         return sd_bus_reply_method_return(message, NULL);
1610 }
1611
1612 static int method_switch_root(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1613         _cleanup_free_ char *ri = NULL, *rt = NULL;
1614         const char *root, *init;
1615         Manager *m = ASSERT_PTR(userdata);
1616         struct statvfs svfs;
1617         uint64_t available;
1618         int r;
1619
1620         assert(message);
1621
1622         if (statvfs("/run/systemd", &svfs) < 0)
1623                 return sd_bus_error_set_errnof(error, errno, "Failed to statvfs(/run/systemd): %m");
1624
1625         available = (uint64_t) svfs.f_bfree * (uint64_t) svfs.f_bsize;
1626
1627         if (available < RELOAD_DISK_SPACE_MIN)
1628                 log_warning("Dangerously low amount of free space on /run/systemd, root switching might fail.\n"
1629                             "Currently, %s are free, but %s are suggested. Proceeding anyway.",
1630                             FORMAT_BYTES(available),
1631                             FORMAT_BYTES(RELOAD_DISK_SPACE_MIN));
1632
1633         r = mac_selinux_access_check(message, "reboot", error);
1634         if (r < 0)
1635                 return r;
1636
1637         if (!MANAGER_IS_SYSTEM(m))
1638                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1639                                          "Root switching is only supported by system manager.");
1640
1641         r = sd_bus_message_read(message, "ss", &root, &init);
1642         if (r < 0)
1643                 return r;
1644
1645         if (isempty(root))
1646                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1647                                          "New root directory may not be the empty string.");
1648         if (!path_is_absolute(root))
1649                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1650                                          "New root path '%s' is not absolute.", root);
1651         if (path_equal(root, "/"))
1652                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1653                                          "New root directory cannot be the old root directory.");
1654
1655         /* Safety check */
1656         if (isempty(init)) {
1657                 r = path_is_os_tree(root);
1658                 if (r < 0)
1659                         return sd_bus_error_set_errnof(error, r,
1660                                                        "Failed to determine whether root path '%s' contains an OS tree: %m",
1661                                                        root);
1662                 if (r == 0)
1663                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1664                                                  "Specified switch root path '%s' does not seem to be an OS tree. os-release file is missing.",
1665                                                  root);
1666         } else {
1667                 _cleanup_free_ char *chased = NULL;
1668
1669                 if (!path_is_absolute(init))
1670                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1671                                                  "Path to init binary '%s' not absolute.", init);
1672
1673                 r = chase_symlinks(init, root, CHASE_PREFIX_ROOT|CHASE_TRAIL_SLASH, &chased, NULL);
1674                 if (r < 0)
1675                         return sd_bus_error_set_errnof(error, r,
1676                                                        "Could not resolve init executable %s: %m", init);
1677
1678                 if (laccess(chased, X_OK) < 0) {
1679                         if (errno == EACCES)
1680                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1681                                                          "Init binary %s is not executable.", init);
1682
1683                         return sd_bus_error_set_errnof(error, r,
1684                                                        "Could not check whether init binary %s is executable: %m", init);
1685                 }
1686         }
1687
1688         rt = strdup(root);
1689         if (!rt)
1690                 return -ENOMEM;
1691
1692         if (!isempty(init)) {
1693                 ri = strdup(init);
1694                 if (!ri)
1695                         return -ENOMEM;
1696         }
1697
1698         free_and_replace(m->switch_root, rt);
1699         free_and_replace(m->switch_root_init, ri);
1700
1701         m->objective = MANAGER_SWITCH_ROOT;
1702
1703         return sd_bus_reply_method_return(message, NULL);
1704 }
1705
1706 static int method_set_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1707         _cleanup_strv_free_ char **plus = NULL;
1708         Manager *m = ASSERT_PTR(userdata);
1709         int r;
1710
1711         assert(message);
1712
1713         r = mac_selinux_access_check(message, "reload", error);
1714         if (r < 0)
1715                 return r;
1716
1717         r = sd_bus_message_read_strv(message, &plus);
1718         if (r < 0)
1719                 return r;
1720         if (!strv_env_is_valid(plus))
1721                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments");
1722
1723         r = bus_verify_set_environment_async(m, message, error);
1724         if (r < 0)
1725                 return r;
1726         if (r == 0)
1727                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1728
1729         r = manager_client_environment_modify(m, NULL, plus);
1730         if (r < 0)
1731                 return r;
1732
1733         return sd_bus_reply_method_return(message, NULL);
1734 }
1735
1736 static int method_unset_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1737         _cleanup_strv_free_ char **minus = NULL;
1738         Manager *m = ASSERT_PTR(userdata);
1739         int r;
1740
1741         assert(message);
1742
1743         r = mac_selinux_access_check(message, "reload", error);
1744         if (r < 0)
1745                 return r;
1746
1747         r = sd_bus_message_read_strv(message, &minus);
1748         if (r < 0)
1749                 return r;
1750
1751         if (!strv_env_name_or_assignment_is_valid(minus))
1752                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1753                                          "Invalid environment variable names or assignments");
1754
1755         r = bus_verify_set_environment_async(m, message, error);
1756         if (r < 0)
1757                 return r;
1758         if (r == 0)
1759                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1760
1761         r = manager_client_environment_modify(m, minus, NULL);
1762         if (r < 0)
1763                 return r;
1764
1765         return sd_bus_reply_method_return(message, NULL);
1766 }
1767
1768 static int method_unset_and_set_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1769         _cleanup_strv_free_ char **minus = NULL, **plus = NULL;
1770         Manager *m = ASSERT_PTR(userdata);
1771         int r;
1772
1773         assert(message);
1774
1775         r = mac_selinux_access_check(message, "reload", error);
1776         if (r < 0)
1777                 return r;
1778
1779         r = sd_bus_message_read_strv(message, &minus);
1780         if (r < 0)
1781                 return r;
1782
1783         r = sd_bus_message_read_strv(message, &plus);
1784         if (r < 0)
1785                 return r;
1786
1787         if (!strv_env_name_or_assignment_is_valid(minus))
1788                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1789                                          "Invalid environment variable names or assignments");
1790         if (!strv_env_is_valid(plus))
1791                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1792                                          "Invalid environment assignments");
1793
1794         r = bus_verify_set_environment_async(m, message, error);
1795         if (r < 0)
1796                 return r;
1797         if (r == 0)
1798                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1799
1800         r = manager_client_environment_modify(m, minus, plus);
1801         if (r < 0)
1802                 return r;
1803
1804         return sd_bus_reply_method_return(message, NULL);
1805 }
1806
1807 static int method_set_exit_code(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1808         Manager *m = ASSERT_PTR(userdata);
1809         uint8_t code;
1810         int r;
1811
1812         assert(message);
1813
1814         r = mac_selinux_access_check(message, "exit", error);
1815         if (r < 0)
1816                 return r;
1817
1818         r = sd_bus_message_read_basic(message, 'y', &code);
1819         if (r < 0)
1820                 return r;
1821
1822         if (MANAGER_IS_SYSTEM(m) && detect_container() <= 0)
1823                 return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "ExitCode can only be set for user service managers or in containers.");
1824
1825         m->return_value = code;
1826
1827         return sd_bus_reply_method_return(message, NULL);
1828 }
1829
1830 static int method_lookup_dynamic_user_by_name(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1831         Manager *m = ASSERT_PTR(userdata);
1832         const char *name;
1833         uid_t uid;
1834         int r;
1835
1836         assert(message);
1837
1838         r = sd_bus_message_read_basic(message, 's', &name);
1839         if (r < 0)
1840                 return r;
1841
1842         if (!MANAGER_IS_SYSTEM(m))
1843                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1844                                          "Dynamic users are only supported in the system instance.");
1845         if (!valid_user_group_name(name, VALID_USER_RELAX))
1846                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1847                                          "User name invalid: %s", name);
1848
1849         r = dynamic_user_lookup_name(m, name, &uid);
1850         if (r == -ESRCH)
1851                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_DYNAMIC_USER,
1852                                          "Dynamic user %s does not exist.", name);
1853         if (r < 0)
1854                 return r;
1855
1856         return sd_bus_reply_method_return(message, "u", (uint32_t) uid);
1857 }
1858
1859 static int method_lookup_dynamic_user_by_uid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1860         _cleanup_free_ char *name = NULL;
1861         Manager *m = ASSERT_PTR(userdata);
1862         uid_t uid;
1863         int r;
1864
1865         assert(message);
1866
1867         assert_cc(sizeof(uid_t) == sizeof(uint32_t));
1868         r = sd_bus_message_read_basic(message, 'u', &uid);
1869         if (r < 0)
1870                 return r;
1871
1872         if (!MANAGER_IS_SYSTEM(m))
1873                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1874                                          "Dynamic users are only supported in the system instance.");
1875         if (!uid_is_valid(uid))
1876                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1877                                          "User ID invalid: " UID_FMT, uid);
1878
1879         r = dynamic_user_lookup_uid(m, uid, &name);
1880         if (r == -ESRCH)
1881                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_DYNAMIC_USER,
1882                                          "Dynamic user ID " UID_FMT " does not exist.", uid);
1883         if (r < 0)
1884                 return r;
1885
1886         return sd_bus_reply_method_return(message, "s", name);
1887 }
1888
1889 static int method_get_dynamic_users(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1890         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1891         Manager *m = ASSERT_PTR(userdata);
1892         DynamicUser *d;
1893         int r;
1894
1895         assert(message);
1896
1897         assert_cc(sizeof(uid_t) == sizeof(uint32_t));
1898
1899         if (!MANAGER_IS_SYSTEM(m))
1900                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1901                                          "Dynamic users are only supported in the system instance.");
1902
1903         r = sd_bus_message_new_method_return(message, &reply);
1904         if (r < 0)
1905                 return r;
1906
1907         r = sd_bus_message_open_container(reply, 'a', "(us)");
1908         if (r < 0)
1909                 return r;
1910
1911         HASHMAP_FOREACH(d, m->dynamic_users) {
1912                 uid_t uid;
1913
1914                 r = dynamic_user_current(d, &uid);
1915                 if (r == -EAGAIN) /* not realized yet? */
1916                         continue;
1917                 if (r < 0)
1918                         return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED,
1919                                                  "Failed to look up a dynamic user.");
1920
1921                 r = sd_bus_message_append(reply, "(us)", uid, d->name);
1922                 if (r < 0)
1923                         return r;
1924         }
1925
1926         r = sd_bus_message_close_container(reply);
1927         if (r < 0)
1928                 return r;
1929
1930         return sd_bus_send(NULL, reply, NULL);
1931 }
1932
1933 static int method_enqueue_marked_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1934         Manager *m = ASSERT_PTR(userdata);
1935         int r;
1936
1937         assert(message);
1938
1939         r = mac_selinux_access_check(message, "start", error);
1940         if (r < 0)
1941                 return r;
1942
1943         r = bus_verify_manage_units_async(m, message, error);
1944         if (r < 0)
1945                 return r;
1946         if (r == 0)
1947                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1948
1949         log_info("Queuing reload/restart jobs for marked units%s", special_glyph(SPECIAL_GLYPH_ELLIPSIS));
1950
1951         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1952         r = sd_bus_message_new_method_return(message, &reply);
1953         if (r < 0)
1954                 return r;
1955
1956         r = sd_bus_message_open_container(reply, 'a', "o");
1957         if (r < 0)
1958                 return r;
1959
1960         Unit *u;
1961         char *k;
1962         int ret = 0;
1963         HASHMAP_FOREACH_KEY(u, k, m->units) {
1964                 /* ignore aliases */
1965                 if (u->id != k)
1966                         continue;
1967
1968                 BusUnitQueueFlags flags;
1969                 if (FLAGS_SET(u->markers, 1u << UNIT_MARKER_NEEDS_RESTART))
1970                         flags = 0;
1971                 else if (FLAGS_SET(u->markers, 1u << UNIT_MARKER_NEEDS_RELOAD))
1972                         flags = BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE;
1973                 else
1974                         continue;
1975
1976                 r = mac_selinux_unit_access_check(u, message, "start", error);
1977                 if (r >= 0)
1978                         r = bus_unit_queue_job_one(message, u,
1979                                                    JOB_TRY_RESTART, JOB_FAIL, flags,
1980                                                    reply, error);
1981                 if (r < 0) {
1982                         if (ERRNO_IS_RESOURCE(r))
1983                                 return r;
1984                         if (ret >= 0)
1985                                 ret = r;
1986                         sd_bus_error_free(error);
1987                 }
1988         }
1989
1990         if (ret < 0)
1991                 return sd_bus_error_set_errnof(error, ret,
1992                                                "Failed to enqueue some jobs, see logs for details: %m");
1993
1994         r = sd_bus_message_close_container(reply);
1995         if (r < 0)
1996                 return r;
1997
1998         return sd_bus_send(NULL, reply, NULL);
1999 }
2000
2001 static int list_unit_files_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error, char **states, char **patterns) {
2002         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2003         Manager *m = ASSERT_PTR(userdata);
2004         UnitFileList *item;
2005         Hashmap *h;
2006         int r;
2007
2008         assert(message);
2009
2010         /* Anyone can call this method */
2011
2012         r = mac_selinux_access_check(message, "status", error);
2013         if (r < 0)
2014                 return r;
2015
2016         r = sd_bus_message_new_method_return(message, &reply);
2017         if (r < 0)
2018                 return r;
2019
2020         h = hashmap_new(&string_hash_ops);
2021         if (!h)
2022                 return -ENOMEM;
2023
2024         r = unit_file_get_list(m->unit_file_scope, NULL, h, states, patterns);
2025         if (r < 0)
2026                 goto fail;
2027
2028         r = sd_bus_message_open_container(reply, 'a', "(ss)");
2029         if (r < 0)
2030                 goto fail;
2031
2032         HASHMAP_FOREACH(item, h) {
2033
2034                 r = sd_bus_message_append(reply, "(ss)", item->path, unit_file_state_to_string(item->state));
2035                 if (r < 0)
2036                         goto fail;
2037         }
2038
2039         unit_file_list_free(h);
2040
2041         r = sd_bus_message_close_container(reply);
2042         if (r < 0)
2043                 return r;
2044
2045         return sd_bus_send(NULL, reply, NULL);
2046
2047 fail:
2048         unit_file_list_free(h);
2049         return r;
2050 }
2051
2052 static int method_list_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2053         return list_unit_files_by_patterns(message, userdata, error, NULL, NULL);
2054 }
2055
2056 static int method_list_unit_files_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2057         _cleanup_strv_free_ char **states = NULL;
2058         _cleanup_strv_free_ char **patterns = NULL;
2059         int r;
2060
2061         r = sd_bus_message_read_strv(message, &states);
2062         if (r < 0)
2063                 return r;
2064
2065         r = sd_bus_message_read_strv(message, &patterns);
2066         if (r < 0)
2067                 return r;
2068
2069         return list_unit_files_by_patterns(message, userdata, error, states, patterns);
2070 }
2071
2072 static int method_get_unit_file_state(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2073         Manager *m = ASSERT_PTR(userdata);
2074         const char *name;
2075         UnitFileState state;
2076         int r;
2077
2078         assert(message);
2079
2080         /* Anyone can call this method */
2081
2082         r = mac_selinux_access_check(message, "status", error);
2083         if (r < 0)
2084                 return r;
2085
2086         r = sd_bus_message_read(message, "s", &name);
2087         if (r < 0)
2088                 return r;
2089
2090         r = unit_file_get_state(m->unit_file_scope, NULL, name, &state);
2091         if (r < 0)
2092                 return r;
2093
2094         return sd_bus_reply_method_return(message, "s", unit_file_state_to_string(state));
2095 }
2096
2097 static int method_get_default_target(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2098         _cleanup_free_ char *default_target = NULL;
2099         Manager *m = ASSERT_PTR(userdata);
2100         int r;
2101
2102         assert(message);
2103
2104         /* Anyone can call this method */
2105
2106         r = mac_selinux_access_check(message, "status", error);
2107         if (r < 0)
2108                 return r;
2109
2110         r = unit_file_get_default(m->unit_file_scope, NULL, &default_target);
2111         if (r < 0)
2112                 return r;
2113
2114         return sd_bus_reply_method_return(message, "s", default_target);
2115 }
2116
2117 static int send_unit_files_changed(sd_bus *bus, void *userdata) {
2118         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
2119         int r;
2120
2121         assert(bus);
2122
2123         r = sd_bus_message_new_signal(bus, &message,
2124                                       "/org/freedesktop/systemd1",
2125                                       "org.freedesktop.systemd1.Manager",
2126                                       "UnitFilesChanged");
2127         if (r < 0)
2128                 return r;
2129
2130         return sd_bus_send(bus, message, NULL);
2131 }
2132
2133 /* Create an error reply, using the error information from changes[]
2134  * if possible, and fall back to generating an error from error code c.
2135  * The error message only describes the first error.
2136  */
2137 static int install_error(
2138                 sd_bus_error *error,
2139                 int c,
2140                 InstallChange *changes,
2141                 size_t n_changes) {
2142
2143         int r;
2144
2145         for (size_t i = 0; i < n_changes; i++)
2146
2147                 /* When making changes here, make sure to also change install_changes_dump() in install.c. */
2148
2149                 switch (changes[i].type) {
2150                 case 0 ... _INSTALL_CHANGE_TYPE_MAX: /* not errors */
2151                         break;
2152
2153                 case -EEXIST:
2154                         if (changes[i].source)
2155                                 r = sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
2156                                                       "File %s already exists and is a symlink to %s.",
2157                                                       changes[i].path, changes[i].source);
2158                         else
2159                                 r = sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
2160                                                       "File %s already exists.",
2161                                                       changes[i].path);
2162                         goto found;
2163
2164                 case -ERFKILL:
2165                         r = sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED,
2166                                               "Unit file %s is masked.", changes[i].path);
2167                         goto found;
2168
2169                 case -EADDRNOTAVAIL:
2170                         r = sd_bus_error_setf(error, BUS_ERROR_UNIT_GENERATED,
2171                                               "Unit %s is transient or generated.", changes[i].path);
2172                         goto found;
2173
2174                 case -ETXTBSY:
2175                         r = sd_bus_error_setf(error, BUS_ERROR_UNIT_BAD_PATH,
2176                                               "File %s is under the systemd unit hierarchy already.", changes[i].path);
2177                         goto found;
2178
2179                 case -EBADSLT:
2180                         r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2181                                               "Invalid specifier in %s.", changes[i].path);
2182                         goto found;
2183
2184                 case -EIDRM:
2185                         r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2186                                               "Destination unit %s is a non-template unit.", changes[i].path);
2187                         goto found;
2188
2189                 case -EUCLEAN:
2190                         r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2191                                               "\"%s\" is not a valid unit name.",
2192                                               changes[i].path);
2193                         goto found;
2194
2195                 case -ELOOP:
2196                         r = sd_bus_error_setf(error, BUS_ERROR_UNIT_LINKED,
2197                                               "Refusing to operate on alias name or linked unit file: %s",
2198                                               changes[i].path);
2199                         goto found;
2200
2201                 case -EXDEV:
2202                         if (changes[i].source)
2203                                 r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2204                                                       "Cannot alias %s as %s.",
2205                                                       changes[i].source, changes[i].path);
2206                         else
2207                                 r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2208                                                       "Invalid unit reference %s.", changes[i].path);
2209                         goto found;
2210
2211                 case -ENOENT:
2212                         r = sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT,
2213                                               "Unit file %s does not exist.", changes[i].path);
2214                         goto found;
2215
2216                 case -EUNATCH:
2217                         r = sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2218                                               "Cannot resolve specifiers in %s.", changes[i].path);
2219                         goto found;
2220
2221                 default:
2222                         assert(changes[i].type < 0); /* other errors */
2223                         r = sd_bus_error_set_errnof(error, changes[i].type, "File %s: %m", changes[i].path);
2224                         goto found;
2225                 }
2226
2227         r = c < 0 ? c : -EINVAL;
2228
2229  found:
2230         install_changes_free(changes, n_changes);
2231         return r;
2232 }
2233
2234 static int reply_install_changes_and_free(
2235                 Manager *m,
2236                 sd_bus_message *message,
2237                 int carries_install_info,
2238                 InstallChange *changes,
2239                 size_t n_changes,
2240                 sd_bus_error *error) {
2241
2242         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2243         bool bad = false, good = false;
2244         int r;
2245
2246         if (install_changes_have_modification(changes, n_changes)) {
2247                 r = bus_foreach_bus(m, NULL, send_unit_files_changed, NULL);
2248                 if (r < 0)
2249                         log_debug_errno(r, "Failed to send UnitFilesChanged signal: %m");
2250         }
2251
2252         r = sd_bus_message_new_method_return(message, &reply);
2253         if (r < 0)
2254                 goto fail;
2255
2256         if (carries_install_info >= 0) {
2257                 r = sd_bus_message_append(reply, "b", carries_install_info);
2258                 if (r < 0)
2259                         goto fail;
2260         }
2261
2262         r = sd_bus_message_open_container(reply, 'a', "(sss)");
2263         if (r < 0)
2264                 goto fail;
2265
2266         for (size_t i = 0; i < n_changes; i++) {
2267
2268                 if (changes[i].type < 0) {
2269                         bad = true;
2270                         continue;
2271                 }
2272
2273                 r = sd_bus_message_append(
2274                                 reply, "(sss)",
2275                                 install_change_type_to_string(changes[i].type),
2276                                 changes[i].path,
2277                                 changes[i].source);
2278                 if (r < 0)
2279                         goto fail;
2280
2281                 good = true;
2282         }
2283
2284         /* If there was a failed change, and no successful change, then return the first failure as proper
2285          * method call error. */
2286         if (bad && !good)
2287                 return install_error(error, 0, changes, n_changes);
2288
2289         r = sd_bus_message_close_container(reply);
2290         if (r < 0)
2291                 goto fail;
2292
2293         install_changes_free(changes, n_changes);
2294         return sd_bus_send(NULL, reply, NULL);
2295
2296 fail:
2297         install_changes_free(changes, n_changes);
2298         return r;
2299 }
2300
2301 static int method_enable_unit_files_generic(
2302                 sd_bus_message *message,
2303                 Manager *m,
2304                 int (*call)(LookupScope scope, UnitFileFlags flags, const char *root_dir, char *files[], InstallChange **changes, size_t *n_changes),
2305                 bool carries_install_info,
2306                 sd_bus_error *error) {
2307
2308         _cleanup_strv_free_ char **l = NULL;
2309         InstallChange *changes = NULL;
2310         size_t n_changes = 0;
2311         UnitFileFlags flags;
2312         int r;
2313
2314         assert(message);
2315         assert(m);
2316
2317         r = sd_bus_message_read_strv(message, &l);
2318         if (r < 0)
2319                 return r;
2320
2321         if (sd_bus_message_is_method_call(message, NULL, "EnableUnitFilesWithFlags")) {
2322                 uint64_t raw_flags;
2323
2324                 r = sd_bus_message_read(message, "t", &raw_flags);
2325                 if (r < 0)
2326                         return r;
2327                 if ((raw_flags & ~_UNIT_FILE_FLAGS_MASK_PUBLIC) != 0)
2328                         return -EINVAL;
2329                 flags = raw_flags;
2330         } else {
2331                 int runtime, force;
2332
2333                 r = sd_bus_message_read(message, "bb", &runtime, &force);
2334                 if (r < 0)
2335                         return r;
2336                 flags = unit_file_bools_to_flags(runtime, force);
2337         }
2338
2339         r = bus_verify_manage_unit_files_async(m, message, error);
2340         if (r < 0)
2341                 return r;
2342         if (r == 0)
2343                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2344
2345         r = call(m->unit_file_scope, flags, NULL, l, &changes, &n_changes);
2346         if (r < 0)
2347                 return install_error(error, r, changes, n_changes);
2348
2349         return reply_install_changes_and_free(m, message, carries_install_info ? r : -1, changes, n_changes, error);
2350 }
2351
2352 static int method_enable_unit_files_with_flags(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2353         return method_enable_unit_files_generic(message, userdata, unit_file_enable, /* carries_install_info = */ true, error);
2354 }
2355
2356 static int method_enable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2357         return method_enable_unit_files_generic(message, userdata, unit_file_enable, /* carries_install_info = */ true, error);
2358 }
2359
2360 static int method_reenable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2361         return method_enable_unit_files_generic(message, userdata, unit_file_reenable, /* carries_install_info = */ true, error);
2362 }
2363
2364 static int method_link_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2365         return method_enable_unit_files_generic(message, userdata, unit_file_link, /* carries_install_info = */ false, error);
2366 }
2367
2368 static int unit_file_preset_without_mode(LookupScope scope, UnitFileFlags flags, const char *root_dir, char **files, InstallChange **changes, size_t *n_changes) {
2369         return unit_file_preset(scope, flags, root_dir, files, UNIT_FILE_PRESET_FULL, changes, n_changes);
2370 }
2371
2372 static int method_preset_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2373         return method_enable_unit_files_generic(message, userdata, unit_file_preset_without_mode, /* carries_install_info = */ true, error);
2374 }
2375
2376 static int method_mask_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2377         return method_enable_unit_files_generic(message, userdata, unit_file_mask, /* carries_install_info = */ false, error);
2378 }
2379
2380 static int method_preset_unit_files_with_mode(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2381
2382         _cleanup_strv_free_ char **l = NULL;
2383         InstallChange *changes = NULL;
2384         size_t n_changes = 0;
2385         Manager *m = ASSERT_PTR(userdata);
2386         UnitFilePresetMode preset_mode;
2387         int runtime, force, r;
2388         UnitFileFlags flags;
2389         const char *mode;
2390
2391         assert(message);
2392
2393         r = sd_bus_message_read_strv(message, &l);
2394         if (r < 0)
2395                 return r;
2396
2397         r = sd_bus_message_read(message, "sbb", &mode, &runtime, &force);
2398         if (r < 0)
2399                 return r;
2400
2401         flags = unit_file_bools_to_flags(runtime, force);
2402
2403         if (isempty(mode))
2404                 preset_mode = UNIT_FILE_PRESET_FULL;
2405         else {
2406                 preset_mode = unit_file_preset_mode_from_string(mode);
2407                 if (preset_mode < 0)
2408                         return -EINVAL;
2409         }
2410
2411         r = bus_verify_manage_unit_files_async(m, message, error);
2412         if (r < 0)
2413                 return r;
2414         if (r == 0)
2415                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2416
2417         r = unit_file_preset(m->unit_file_scope, flags, NULL, l, preset_mode, &changes, &n_changes);
2418         if (r < 0)
2419                 return install_error(error, r, changes, n_changes);
2420
2421         return reply_install_changes_and_free(m, message, r, changes, n_changes, error);
2422 }
2423
2424 static int method_disable_unit_files_generic(
2425                 sd_bus_message *message,
2426                 Manager *m,
2427                 int (*call)(LookupScope scope, UnitFileFlags flags, const char *root_dir, char *files[], InstallChange **changes, size_t *n_changes),
2428                 bool carries_install_info,
2429                 sd_bus_error *error) {
2430
2431         _cleanup_strv_free_ char **l = NULL;
2432         InstallChange *changes = NULL;
2433         UnitFileFlags flags;
2434         size_t n_changes = 0;
2435         int r;
2436
2437         assert(message);
2438         assert(m);
2439
2440         r = sd_bus_message_read_strv(message, &l);
2441         if (r < 0)
2442                 return r;
2443
2444         if (sd_bus_message_is_method_call(message, NULL, "DisableUnitFilesWithFlags") ||
2445             sd_bus_message_is_method_call(message, NULL, "DisableUnitFilesWithFlagsAndInstallInfo")) {
2446                 uint64_t raw_flags;
2447
2448                 r = sd_bus_message_read(message, "t", &raw_flags);
2449                 if (r < 0)
2450                         return r;
2451                 if ((raw_flags & ~_UNIT_FILE_FLAGS_MASK_PUBLIC) != 0 ||
2452                                 FLAGS_SET(raw_flags, UNIT_FILE_FORCE))
2453                         return -EINVAL;
2454                 flags = raw_flags;
2455         } else {
2456                 int runtime;
2457
2458                 r = sd_bus_message_read(message, "b", &runtime);
2459                 if (r < 0)
2460                         return r;
2461                 flags = unit_file_bools_to_flags(runtime, false);
2462         }
2463
2464         r = bus_verify_manage_unit_files_async(m, message, error);
2465         if (r < 0)
2466                 return r;
2467         if (r == 0)
2468                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2469
2470         r = call(m->unit_file_scope, flags, NULL, l, &changes, &n_changes);
2471         if (r < 0)
2472                 return install_error(error, r, changes, n_changes);
2473
2474         return reply_install_changes_and_free(m, message, carries_install_info ? r : -1, changes, n_changes, error);
2475 }
2476
2477 static int method_disable_unit_files_with_flags(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2478         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ false, error);
2479 }
2480
2481 static int method_disable_unit_files_with_flags_and_install_info(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2482         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ true, error);
2483 }
2484
2485 static int method_disable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2486         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ false, error);
2487 }
2488
2489 static int method_unmask_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2490         return method_disable_unit_files_generic(message, userdata, unit_file_unmask, /* carries_install_info = */ false, error);
2491 }
2492
2493 static int method_revert_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2494         _cleanup_strv_free_ char **l = NULL;
2495         InstallChange *changes = NULL;
2496         size_t n_changes = 0;
2497         Manager *m = ASSERT_PTR(userdata);
2498         int r;
2499
2500         assert(message);
2501
2502         r = sd_bus_message_read_strv(message, &l);
2503         if (r < 0)
2504                 return r;
2505
2506         r = bus_verify_manage_unit_files_async(m, message, error);
2507         if (r < 0)
2508                 return r;
2509         if (r == 0)
2510                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2511
2512         r = unit_file_revert(m->unit_file_scope, NULL, l, &changes, &n_changes);
2513         if (r < 0)
2514                 return install_error(error, r, changes, n_changes);
2515
2516         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2517 }
2518
2519 static int method_set_default_target(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2520         InstallChange *changes = NULL;
2521         size_t n_changes = 0;
2522         Manager *m = ASSERT_PTR(userdata);
2523         const char *name;
2524         int force, r;
2525
2526         assert(message);
2527
2528         r = mac_selinux_access_check(message, "enable", error);
2529         if (r < 0)
2530                 return r;
2531
2532         r = sd_bus_message_read(message, "sb", &name, &force);
2533         if (r < 0)
2534                 return r;
2535
2536         r = bus_verify_manage_unit_files_async(m, message, error);
2537         if (r < 0)
2538                 return r;
2539         if (r == 0)
2540                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2541
2542         r = unit_file_set_default(m->unit_file_scope, force ? UNIT_FILE_FORCE : 0, NULL, name, &changes, &n_changes);
2543         if (r < 0)
2544                 return install_error(error, r, changes, n_changes);
2545
2546         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2547 }
2548
2549 static int method_preset_all_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2550         InstallChange *changes = NULL;
2551         size_t n_changes = 0;
2552         Manager *m = ASSERT_PTR(userdata);
2553         UnitFilePresetMode preset_mode;
2554         const char *mode;
2555         UnitFileFlags flags;
2556         int force, runtime, r;
2557
2558         assert(message);
2559
2560         r = mac_selinux_access_check(message, "enable", error);
2561         if (r < 0)
2562                 return r;
2563
2564         r = sd_bus_message_read(message, "sbb", &mode, &runtime, &force);
2565         if (r < 0)
2566                 return r;
2567
2568         flags = unit_file_bools_to_flags(runtime, force);
2569
2570         if (isempty(mode))
2571                 preset_mode = UNIT_FILE_PRESET_FULL;
2572         else {
2573                 preset_mode = unit_file_preset_mode_from_string(mode);
2574                 if (preset_mode < 0)
2575                         return -EINVAL;
2576         }
2577
2578         r = bus_verify_manage_unit_files_async(m, message, error);
2579         if (r < 0)
2580                 return r;
2581         if (r == 0)
2582                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2583
2584         r = unit_file_preset_all(m->unit_file_scope, flags, NULL, preset_mode, &changes, &n_changes);
2585         if (r < 0)
2586                 return install_error(error, r, changes, n_changes);
2587
2588         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2589 }
2590
2591 static int method_add_dependency_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2592         _cleanup_strv_free_ char **l = NULL;
2593         Manager *m = ASSERT_PTR(userdata);
2594         InstallChange *changes = NULL;
2595         size_t n_changes = 0;
2596         int runtime, force, r;
2597         char *target, *type;
2598         UnitDependency dep;
2599         UnitFileFlags flags;
2600
2601         assert(message);
2602
2603         r = bus_verify_manage_unit_files_async(m, message, error);
2604         if (r < 0)
2605                 return r;
2606         if (r == 0)
2607                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2608
2609         r = sd_bus_message_read_strv(message, &l);
2610         if (r < 0)
2611                 return r;
2612
2613         r = sd_bus_message_read(message, "ssbb", &target, &type, &runtime, &force);
2614         if (r < 0)
2615                 return r;
2616
2617         flags = unit_file_bools_to_flags(runtime, force);
2618
2619         dep = unit_dependency_from_string(type);
2620         if (dep < 0)
2621                 return -EINVAL;
2622
2623         r = unit_file_add_dependency(m->unit_file_scope, flags, NULL, l, target, dep, &changes, &n_changes);
2624         if (r < 0)
2625                 return install_error(error, r, changes, n_changes);
2626
2627         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2628 }
2629
2630 static int method_get_unit_file_links(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2631         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2632         InstallChange *changes = NULL;
2633         size_t n_changes = 0, i;
2634         UnitFileFlags flags;
2635         const char *name;
2636         char **p;
2637         int runtime, r;
2638
2639         r = sd_bus_message_read(message, "sb", &name, &runtime);
2640         if (r < 0)
2641                 return r;
2642
2643         r = sd_bus_message_new_method_return(message, &reply);
2644         if (r < 0)
2645                 return r;
2646
2647         r = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "s");
2648         if (r < 0)
2649                 return r;
2650
2651         p = STRV_MAKE(name);
2652         flags = UNIT_FILE_DRY_RUN |
2653                 (runtime ? UNIT_FILE_RUNTIME : 0);
2654
2655         r = unit_file_disable(LOOKUP_SCOPE_SYSTEM, flags, NULL, p, &changes, &n_changes);
2656         if (r < 0) {
2657                 log_error_errno(r, "Failed to get file links for %s: %m", name);
2658                 goto finish;
2659         }
2660
2661         for (i = 0; i < n_changes; i++)
2662                 if (changes[i].type == INSTALL_CHANGE_UNLINK) {
2663                         r = sd_bus_message_append(reply, "s", changes[i].path);
2664                         if (r < 0)
2665                                 goto finish;
2666                 }
2667
2668         r = sd_bus_message_close_container(reply);
2669         if (r < 0)
2670                 goto finish;
2671
2672         r = sd_bus_send(NULL, reply, NULL);
2673
2674 finish:
2675         install_changes_free(changes, n_changes);
2676         return r;
2677 }
2678
2679 static int method_get_job_waiting(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2680         Manager *m = ASSERT_PTR(userdata);
2681         uint32_t id;
2682         Job *j;
2683         int r;
2684
2685         assert(message);
2686
2687         r = sd_bus_message_read(message, "u", &id);
2688         if (r < 0)
2689                 return r;
2690
2691         j = manager_get_job(m, id);
2692         if (!j)
2693                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
2694
2695         return bus_job_method_get_waiting_jobs(message, j, error);
2696 }
2697
2698 static int method_abandon_scope(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2699         Manager *m = ASSERT_PTR(userdata);
2700         const char *name;
2701         Unit *u;
2702         int r;
2703
2704         assert(message);
2705
2706         r = sd_bus_message_read(message, "s", &name);
2707         if (r < 0)
2708                 return r;
2709
2710         r = bus_get_unit_by_name(m, message, name, &u, error);
2711         if (r < 0)
2712                 return r;
2713
2714         if (u->type != UNIT_SCOPE)
2715                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
2716                                          "Unit '%s' is not a scope unit, refusing.", name);
2717
2718         return bus_scope_method_abandon(message, u, error);
2719 }
2720
2721 static int method_set_show_status(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2722         Manager *m = ASSERT_PTR(userdata);
2723         ShowStatus mode = _SHOW_STATUS_INVALID;
2724         const char *t;
2725         int r;
2726
2727         assert(message);
2728
2729         r = mac_selinux_access_check(message, "reload", error);
2730         if (r < 0)
2731                 return r;
2732
2733         r = bus_verify_set_environment_async(m, message, error);
2734         if (r < 0)
2735                 return r;
2736         if (r == 0)
2737                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2738
2739         r = sd_bus_message_read(message, "s", &t);
2740         if (r < 0)
2741                 return r;
2742
2743         if (!isempty(t)) {
2744                 mode = show_status_from_string(t);
2745                 if (mode < 0)
2746                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
2747                                                  "Invalid show status '%s'", t);
2748         }
2749
2750         manager_override_show_status(m, mode, "bus");
2751
2752         return sd_bus_reply_method_return(message, NULL);
2753 }
2754
2755 const sd_bus_vtable bus_manager_vtable[] = {
2756         SD_BUS_VTABLE_START(0),
2757
2758         SD_BUS_PROPERTY("Version", "s", property_get_version, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2759         SD_BUS_PROPERTY("Features", "s", property_get_features, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2760         SD_BUS_PROPERTY("Virtualization", "s", property_get_virtualization, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2761         SD_BUS_PROPERTY("Architecture", "s", property_get_architecture, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2762         SD_BUS_PROPERTY("Tainted", "s", property_get_tainted, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2763         BUS_PROPERTY_DUAL_TIMESTAMP("FirmwareTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_FIRMWARE]), SD_BUS_VTABLE_PROPERTY_CONST),
2764         BUS_PROPERTY_DUAL_TIMESTAMP("LoaderTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_LOADER]), SD_BUS_VTABLE_PROPERTY_CONST),
2765         BUS_PROPERTY_DUAL_TIMESTAMP("KernelTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_KERNEL]), SD_BUS_VTABLE_PROPERTY_CONST),
2766         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD]), SD_BUS_VTABLE_PROPERTY_CONST),
2767         BUS_PROPERTY_DUAL_TIMESTAMP("UserspaceTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_USERSPACE]), SD_BUS_VTABLE_PROPERTY_CONST),
2768         BUS_PROPERTY_DUAL_TIMESTAMP("FinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2769         BUS_PROPERTY_DUAL_TIMESTAMP("SecurityStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_SECURITY_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2770         BUS_PROPERTY_DUAL_TIMESTAMP("SecurityFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_SECURITY_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2771         BUS_PROPERTY_DUAL_TIMESTAMP("GeneratorsStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_GENERATORS_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2772         BUS_PROPERTY_DUAL_TIMESTAMP("GeneratorsFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_GENERATORS_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2773         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2774         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2775         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD]), SD_BUS_VTABLE_PROPERTY_CONST),
2776         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDSecurityStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_SECURITY_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2777         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDSecurityFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_SECURITY_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2778         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDGeneratorsStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_GENERATORS_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2779         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDGeneratorsFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_GENERATORS_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2780         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDUnitsLoadStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2781         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDUnitsLoadFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2782         SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", bus_property_get_log_level, property_set_log_level, 0, 0),
2783         SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", bus_property_get_log_target, property_set_log_target, 0, 0),
2784         SD_BUS_PROPERTY("NNames", "u", property_get_hashmap_size, offsetof(Manager, units), 0),
2785         SD_BUS_PROPERTY("NFailedUnits", "u", property_get_set_size, offsetof(Manager, failed_units), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2786         SD_BUS_PROPERTY("NJobs", "u", property_get_hashmap_size, offsetof(Manager, jobs), 0),
2787         SD_BUS_PROPERTY("NInstalledJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_installed_jobs), 0),
2788         SD_BUS_PROPERTY("NFailedJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_failed_jobs), 0),
2789         SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0),
2790         SD_BUS_PROPERTY("Environment", "as", property_get_environment, 0, 0),
2791         SD_BUS_PROPERTY("ConfirmSpawn", "b", bus_property_get_bool, offsetof(Manager, confirm_spawn), SD_BUS_VTABLE_PROPERTY_CONST),
2792         SD_BUS_PROPERTY("ShowStatus", "b", property_get_show_status, 0, 0),
2793         SD_BUS_PROPERTY("UnitPath", "as", NULL, offsetof(Manager, lookup_paths.search_path), SD_BUS_VTABLE_PROPERTY_CONST),
2794         SD_BUS_PROPERTY("DefaultStandardOutput", "s", bus_property_get_exec_output, offsetof(Manager, default_std_output), SD_BUS_VTABLE_PROPERTY_CONST),
2795         SD_BUS_PROPERTY("DefaultStandardError", "s", bus_property_get_exec_output, offsetof(Manager, default_std_error), SD_BUS_VTABLE_PROPERTY_CONST),
2796         SD_BUS_PROPERTY("WatchdogDevice", "s", property_get_watchdog_device, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2797         SD_BUS_PROPERTY("WatchdogLastPingTimestamp", "t", property_get_watchdog_last_ping_realtime, 0, 0),
2798         SD_BUS_PROPERTY("WatchdogLastPingTimestampMonotonic", "t", property_get_watchdog_last_ping_monotonic, 0, 0),
2799         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogUSec", "t", property_get_runtime_watchdog, property_set_runtime_watchdog, 0, 0),
2800         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogPreUSec", "t", property_get_pretimeout_watchdog, property_set_pretimeout_watchdog, 0, 0),
2801         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogPreGovernor", "s", property_get_pretimeout_watchdog_governor, property_set_pretimeout_watchdog_governor, 0, 0),
2802         SD_BUS_WRITABLE_PROPERTY("RebootWatchdogUSec", "t", property_get_reboot_watchdog, property_set_reboot_watchdog, 0, 0),
2803         /* The following item is an obsolete alias */
2804         SD_BUS_WRITABLE_PROPERTY("ShutdownWatchdogUSec", "t", property_get_reboot_watchdog, property_set_reboot_watchdog, 0, SD_BUS_VTABLE_HIDDEN),
2805         SD_BUS_WRITABLE_PROPERTY("KExecWatchdogUSec", "t", property_get_kexec_watchdog, property_set_kexec_watchdog, 0, 0),
2806         SD_BUS_WRITABLE_PROPERTY("ServiceWatchdogs", "b", bus_property_get_bool, bus_property_set_bool, offsetof(Manager, service_watchdogs), 0),
2807         SD_BUS_PROPERTY("ControlGroup", "s", NULL, offsetof(Manager, cgroup_root), 0),
2808         SD_BUS_PROPERTY("SystemState", "s", property_get_system_state, 0, 0),
2809         SD_BUS_PROPERTY("ExitCode", "y", bus_property_get_unsigned, offsetof(Manager, return_value), 0),
2810         SD_BUS_PROPERTY("DefaultTimerAccuracyUSec", "t", bus_property_get_usec, offsetof(Manager, default_timer_accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2811         SD_BUS_PROPERTY("DefaultTimeoutStartUSec", "t", bus_property_get_usec, offsetof(Manager, default_timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2812         SD_BUS_PROPERTY("DefaultTimeoutStopUSec", "t", bus_property_get_usec, offsetof(Manager, default_timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2813         SD_BUS_PROPERTY("DefaultTimeoutAbortUSec", "t", property_get_default_timeout_abort_usec, 0, 0),
2814         SD_BUS_PROPERTY("DefaultDeviceTimeoutUSec", "t", bus_property_get_usec, offsetof(Manager, default_device_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2815         SD_BUS_PROPERTY("DefaultRestartUSec", "t", bus_property_get_usec, offsetof(Manager, default_restart_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2816         SD_BUS_PROPERTY("DefaultStartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST),
2817         /* The following two items are obsolete alias */
2818         SD_BUS_PROPERTY("DefaultStartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
2819         SD_BUS_PROPERTY("DefaultStartLimitInterval", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
2820         SD_BUS_PROPERTY("DefaultStartLimitBurst", "u", bus_property_get_unsigned, offsetof(Manager, default_start_limit_burst), SD_BUS_VTABLE_PROPERTY_CONST),
2821         SD_BUS_PROPERTY("DefaultCPUAccounting", "b", bus_property_get_bool, offsetof(Manager, default_cpu_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2822         SD_BUS_PROPERTY("DefaultBlockIOAccounting", "b", bus_property_get_bool, offsetof(Manager, default_blockio_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2823         SD_BUS_PROPERTY("DefaultMemoryAccounting", "b", bus_property_get_bool, offsetof(Manager, default_memory_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2824         SD_BUS_PROPERTY("DefaultTasksAccounting", "b", bus_property_get_bool, offsetof(Manager, default_tasks_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2825         SD_BUS_PROPERTY("DefaultLimitCPU", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
2826         SD_BUS_PROPERTY("DefaultLimitCPUSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
2827         SD_BUS_PROPERTY("DefaultLimitFSIZE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
2828         SD_BUS_PROPERTY("DefaultLimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
2829         SD_BUS_PROPERTY("DefaultLimitDATA", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
2830         SD_BUS_PROPERTY("DefaultLimitDATASoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
2831         SD_BUS_PROPERTY("DefaultLimitSTACK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
2832         SD_BUS_PROPERTY("DefaultLimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
2833         SD_BUS_PROPERTY("DefaultLimitCORE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
2834         SD_BUS_PROPERTY("DefaultLimitCORESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
2835         SD_BUS_PROPERTY("DefaultLimitRSS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
2836         SD_BUS_PROPERTY("DefaultLimitRSSSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
2837         SD_BUS_PROPERTY("DefaultLimitNOFILE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
2838         SD_BUS_PROPERTY("DefaultLimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
2839         SD_BUS_PROPERTY("DefaultLimitAS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
2840         SD_BUS_PROPERTY("DefaultLimitASSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
2841         SD_BUS_PROPERTY("DefaultLimitNPROC", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
2842         SD_BUS_PROPERTY("DefaultLimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
2843         SD_BUS_PROPERTY("DefaultLimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
2844         SD_BUS_PROPERTY("DefaultLimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
2845         SD_BUS_PROPERTY("DefaultLimitLOCKS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
2846         SD_BUS_PROPERTY("DefaultLimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
2847         SD_BUS_PROPERTY("DefaultLimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
2848         SD_BUS_PROPERTY("DefaultLimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
2849         SD_BUS_PROPERTY("DefaultLimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
2850         SD_BUS_PROPERTY("DefaultLimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
2851         SD_BUS_PROPERTY("DefaultLimitNICE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
2852         SD_BUS_PROPERTY("DefaultLimitNICESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
2853         SD_BUS_PROPERTY("DefaultLimitRTPRIO", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
2854         SD_BUS_PROPERTY("DefaultLimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
2855         SD_BUS_PROPERTY("DefaultLimitRTTIME", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
2856         SD_BUS_PROPERTY("DefaultLimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
2857         SD_BUS_PROPERTY("DefaultTasksMax", "t", bus_property_get_tasks_max, offsetof(Manager, default_tasks_max), 0),
2858         SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2859         SD_BUS_PROPERTY("DefaultOOMPolicy", "s", bus_property_get_oom_policy, offsetof(Manager, default_oom_policy), SD_BUS_VTABLE_PROPERTY_CONST),
2860         SD_BUS_PROPERTY("DefaultOOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2861         SD_BUS_PROPERTY("CtrlAltDelBurstAction", "s", bus_property_get_emergency_action, offsetof(Manager, cad_burst_action), SD_BUS_VTABLE_PROPERTY_CONST),
2862
2863         SD_BUS_METHOD_WITH_ARGS("GetUnit",
2864                                 SD_BUS_ARGS("s", name),
2865                                 SD_BUS_RESULT("o", unit),
2866                                 method_get_unit,
2867                                 SD_BUS_VTABLE_UNPRIVILEGED),
2868         SD_BUS_METHOD_WITH_ARGS("GetUnitByPID",
2869                                 SD_BUS_ARGS("u", pid),
2870                                 SD_BUS_RESULT("o", unit),
2871                                 method_get_unit_by_pid,
2872                                 SD_BUS_VTABLE_UNPRIVILEGED),
2873         SD_BUS_METHOD_WITH_ARGS("GetUnitByInvocationID",
2874                                 SD_BUS_ARGS("ay", invocation_id),
2875                                 SD_BUS_RESULT("o", unit),
2876                                 method_get_unit_by_invocation_id,
2877                                 SD_BUS_VTABLE_UNPRIVILEGED),
2878         SD_BUS_METHOD_WITH_ARGS("GetUnitByControlGroup",
2879                                 SD_BUS_ARGS("s", cgroup),
2880                                 SD_BUS_RESULT("o", unit),
2881                                 method_get_unit_by_control_group,
2882                                 SD_BUS_VTABLE_UNPRIVILEGED),
2883         SD_BUS_METHOD_WITH_ARGS("LoadUnit",
2884                                 SD_BUS_ARGS("s", name),
2885                                 SD_BUS_RESULT("o", unit),
2886                                 method_load_unit,
2887                                 SD_BUS_VTABLE_UNPRIVILEGED),
2888         SD_BUS_METHOD_WITH_ARGS("StartUnit",
2889                                 SD_BUS_ARGS("s", name, "s", mode),
2890                                 SD_BUS_RESULT("o", job),
2891                                 method_start_unit,
2892                                 SD_BUS_VTABLE_UNPRIVILEGED),
2893         SD_BUS_METHOD_WITH_ARGS("StartUnitWithFlags",
2894                                 SD_BUS_ARGS("s", name, "s", mode, "t", flags),
2895                                 SD_BUS_RESULT("o", job),
2896                                 method_start_unit,
2897                                 SD_BUS_VTABLE_UNPRIVILEGED),
2898         SD_BUS_METHOD_WITH_ARGS("StartUnitReplace",
2899                                 SD_BUS_ARGS("s", old_unit, "s", new_unit, "s", mode),
2900                                 SD_BUS_RESULT("o", job),
2901                                 method_start_unit_replace,
2902                                 SD_BUS_VTABLE_UNPRIVILEGED),
2903         SD_BUS_METHOD_WITH_ARGS("StopUnit",
2904                                 SD_BUS_ARGS("s", name, "s", mode),
2905                                 SD_BUS_RESULT("o", job),
2906                                 method_stop_unit,
2907                                 SD_BUS_VTABLE_UNPRIVILEGED),
2908         SD_BUS_METHOD_WITH_ARGS("ReloadUnit",
2909                                 SD_BUS_ARGS("s", name, "s", mode),
2910                                 SD_BUS_RESULT("o", job),
2911                                 method_reload_unit,
2912                                 SD_BUS_VTABLE_UNPRIVILEGED),
2913         SD_BUS_METHOD_WITH_ARGS("RestartUnit",
2914                                 SD_BUS_ARGS("s", name, "s", mode),
2915                                 SD_BUS_RESULT("o", job),
2916                                 method_restart_unit,
2917                                 SD_BUS_VTABLE_UNPRIVILEGED),
2918         SD_BUS_METHOD_WITH_ARGS("TryRestartUnit",
2919                                 SD_BUS_ARGS("s", name, "s", mode),
2920                                 SD_BUS_RESULT("o", job),
2921                                 method_try_restart_unit,
2922                                 SD_BUS_VTABLE_UNPRIVILEGED),
2923         SD_BUS_METHOD_WITH_ARGS("ReloadOrRestartUnit",
2924                                 SD_BUS_ARGS("s", name, "s", mode),
2925                                 SD_BUS_RESULT("o", job),
2926                                 method_reload_or_restart_unit,
2927                                 SD_BUS_VTABLE_UNPRIVILEGED),
2928         SD_BUS_METHOD_WITH_ARGS("ReloadOrTryRestartUnit",
2929                                 SD_BUS_ARGS("s", name, "s", mode),
2930                                 SD_BUS_RESULT("o", job),
2931                                 method_reload_or_try_restart_unit,
2932                                 SD_BUS_VTABLE_UNPRIVILEGED),
2933         SD_BUS_METHOD_WITH_ARGS("EnqueueUnitJob",
2934                                 SD_BUS_ARGS("s", name, "s", job_type, "s", job_mode),
2935                                 SD_BUS_RESULT("u", job_id, "o", job_path, "s", unit_id, "o", unit_path, "s", job_type, "a(uosos)", affected_jobs),
2936                                 method_enqueue_unit_job,
2937                                 SD_BUS_VTABLE_UNPRIVILEGED),
2938         SD_BUS_METHOD_WITH_ARGS("KillUnit",
2939                                 SD_BUS_ARGS("s", name, "s", whom, "i", signal),
2940                                 SD_BUS_NO_RESULT,
2941                                 method_kill_unit,
2942                                 SD_BUS_VTABLE_UNPRIVILEGED),
2943         SD_BUS_METHOD_WITH_ARGS("CleanUnit",
2944                                 SD_BUS_ARGS("s", name, "as", mask),
2945                                 SD_BUS_NO_RESULT,
2946                                 method_clean_unit,
2947                                 SD_BUS_VTABLE_UNPRIVILEGED),
2948         SD_BUS_METHOD_WITH_ARGS("FreezeUnit",
2949                                 SD_BUS_ARGS("s", name),
2950                                 SD_BUS_NO_RESULT,
2951                                 method_freeze_unit,
2952                                 SD_BUS_VTABLE_UNPRIVILEGED),
2953         SD_BUS_METHOD_WITH_ARGS("ThawUnit",
2954                                 SD_BUS_ARGS("s", name),
2955                                 SD_BUS_NO_RESULT,
2956                                 method_thaw_unit,
2957                                 SD_BUS_VTABLE_UNPRIVILEGED),
2958         SD_BUS_METHOD_WITH_ARGS("ResetFailedUnit",
2959                                 SD_BUS_ARGS("s", name),
2960                                 SD_BUS_NO_RESULT,
2961                                 method_reset_failed_unit,
2962                                 SD_BUS_VTABLE_UNPRIVILEGED),
2963         SD_BUS_METHOD_WITH_ARGS("SetUnitProperties",
2964                                 SD_BUS_ARGS("s", name, "b", runtime, "a(sv)", properties),
2965                                 SD_BUS_NO_RESULT,
2966                                 method_set_unit_properties,
2967                                 SD_BUS_VTABLE_UNPRIVILEGED),
2968         SD_BUS_METHOD_WITH_ARGS("BindMountUnit",
2969                                 SD_BUS_ARGS("s", name, "s", source, "s", destination, "b", read_only, "b", mkdir),
2970                                 SD_BUS_NO_RESULT,
2971                                 method_bind_mount_unit,
2972                                 SD_BUS_VTABLE_UNPRIVILEGED),
2973         SD_BUS_METHOD_WITH_ARGS("MountImageUnit",
2974                                 SD_BUS_ARGS("s", name, "s", source, "s", destination, "b", read_only, "b", mkdir, "a(ss)", options),
2975                                 SD_BUS_NO_RESULT,
2976                                 method_mount_image_unit,
2977                                 SD_BUS_VTABLE_UNPRIVILEGED),
2978         SD_BUS_METHOD_WITH_ARGS("RefUnit",
2979                                 SD_BUS_ARGS("s", name),
2980                                 SD_BUS_NO_RESULT,
2981                                 method_ref_unit,
2982                                 SD_BUS_VTABLE_UNPRIVILEGED),
2983         SD_BUS_METHOD_WITH_ARGS("UnrefUnit",
2984                                 SD_BUS_ARGS("s", name),
2985                                 SD_BUS_NO_RESULT,
2986                                 method_unref_unit,
2987                                 SD_BUS_VTABLE_UNPRIVILEGED),
2988         SD_BUS_METHOD_WITH_ARGS("StartTransientUnit",
2989                                 SD_BUS_ARGS("s", name, "s", mode, "a(sv)", properties, "a(sa(sv))", aux),
2990                                 SD_BUS_RESULT("o", job),
2991                                 method_start_transient_unit,
2992                                 SD_BUS_VTABLE_UNPRIVILEGED),
2993         SD_BUS_METHOD_WITH_ARGS("GetUnitProcesses",
2994                                 SD_BUS_ARGS("s", name),
2995                                 SD_BUS_RESULT("a(sus)", processes),
2996                                 method_get_unit_processes,
2997                                 SD_BUS_VTABLE_UNPRIVILEGED),
2998         SD_BUS_METHOD_WITH_ARGS("AttachProcessesToUnit",
2999                                 SD_BUS_ARGS("s", unit_name, "s", subcgroup, "au", pids),
3000                                 SD_BUS_NO_RESULT,
3001                                 method_attach_processes_to_unit,
3002                                 SD_BUS_VTABLE_UNPRIVILEGED),
3003         SD_BUS_METHOD_WITH_ARGS("AbandonScope",
3004                                 SD_BUS_ARGS("s", name),
3005                                 SD_BUS_NO_RESULT,
3006                                 method_abandon_scope,
3007                                 SD_BUS_VTABLE_UNPRIVILEGED),
3008         SD_BUS_METHOD_WITH_ARGS("GetJob",
3009                                 SD_BUS_ARGS("u", id),
3010                                 SD_BUS_RESULT("o", job),
3011                                 method_get_job,
3012                                 SD_BUS_VTABLE_UNPRIVILEGED),
3013         SD_BUS_METHOD_WITH_ARGS("GetJobAfter",
3014                                 SD_BUS_ARGS("u", id),
3015                                 SD_BUS_RESULT("a(usssoo)", jobs),
3016                                 method_get_job_waiting,
3017                                 SD_BUS_VTABLE_UNPRIVILEGED),
3018         SD_BUS_METHOD_WITH_ARGS("GetJobBefore",
3019                                 SD_BUS_ARGS("u", id),
3020                                 SD_BUS_RESULT("a(usssoo)", jobs),
3021                                 method_get_job_waiting,
3022                                 SD_BUS_VTABLE_UNPRIVILEGED),
3023         SD_BUS_METHOD_WITH_ARGS("CancelJob",
3024                                 SD_BUS_ARGS("u", id),
3025                                 SD_BUS_NO_RESULT,
3026                                 method_cancel_job,
3027                                 SD_BUS_VTABLE_UNPRIVILEGED),
3028         SD_BUS_METHOD("ClearJobs",
3029                       NULL,
3030                       NULL,
3031                       method_clear_jobs,
3032                       SD_BUS_VTABLE_UNPRIVILEGED),
3033         SD_BUS_METHOD("ResetFailed",
3034                       NULL,
3035                       NULL,
3036                       method_reset_failed,
3037                       SD_BUS_VTABLE_UNPRIVILEGED),
3038         SD_BUS_METHOD_WITH_ARGS("SetShowStatus",
3039                                 SD_BUS_ARGS("s", mode),
3040                                 SD_BUS_NO_RESULT,
3041                                 method_set_show_status,
3042                                 SD_BUS_VTABLE_UNPRIVILEGED),
3043         SD_BUS_METHOD_WITH_ARGS("ListUnits",
3044                                 SD_BUS_NO_ARGS,
3045                                 SD_BUS_RESULT("a(ssssssouso)", units),
3046                                 method_list_units,
3047                                 SD_BUS_VTABLE_UNPRIVILEGED),
3048         SD_BUS_METHOD_WITH_ARGS("ListUnitsFiltered",
3049                                 SD_BUS_ARGS("as", states),
3050                                 SD_BUS_RESULT("a(ssssssouso)", units),
3051                                 method_list_units_filtered,
3052                                 SD_BUS_VTABLE_UNPRIVILEGED),
3053         SD_BUS_METHOD_WITH_ARGS("ListUnitsByPatterns",
3054                                 SD_BUS_ARGS("as", states, "as", patterns),
3055                                 SD_BUS_RESULT("a(ssssssouso)", units),
3056                                 method_list_units_by_patterns,
3057                                 SD_BUS_VTABLE_UNPRIVILEGED),
3058         SD_BUS_METHOD_WITH_ARGS("ListUnitsByNames",
3059                                 SD_BUS_ARGS("as", names),
3060                                 SD_BUS_RESULT("a(ssssssouso)", units),
3061                                 method_list_units_by_names,
3062                                 SD_BUS_VTABLE_UNPRIVILEGED),
3063         SD_BUS_METHOD_WITH_ARGS("ListJobs",
3064                                 SD_BUS_NO_ARGS,
3065                                 SD_BUS_RESULT("a(usssoo)", jobs),
3066                                 method_list_jobs,
3067                                 SD_BUS_VTABLE_UNPRIVILEGED),
3068         SD_BUS_METHOD("Subscribe",
3069                       NULL,
3070                       NULL,
3071                       method_subscribe,
3072                       SD_BUS_VTABLE_UNPRIVILEGED),
3073         SD_BUS_METHOD("Unsubscribe",
3074                       NULL,
3075                       NULL,
3076                       method_unsubscribe,
3077                       SD_BUS_VTABLE_UNPRIVILEGED),
3078         SD_BUS_METHOD_WITH_ARGS("Dump",
3079                                 SD_BUS_NO_ARGS,
3080                                 SD_BUS_RESULT("s", output),
3081                                 method_dump,
3082                                 SD_BUS_VTABLE_UNPRIVILEGED),
3083         SD_BUS_METHOD_WITH_ARGS("DumpUnitsMatchingPatterns",
3084                                 SD_BUS_ARGS("as", patterns),
3085                                 SD_BUS_RESULT("s", output),
3086                                 method_dump_units_matching_patterns,
3087                                 SD_BUS_VTABLE_UNPRIVILEGED),
3088         SD_BUS_METHOD_WITH_ARGS("DumpByFileDescriptor",
3089                                 SD_BUS_NO_ARGS,
3090                                 SD_BUS_RESULT("h", fd),
3091                                 method_dump_by_fd,
3092                                 SD_BUS_VTABLE_UNPRIVILEGED),
3093         SD_BUS_METHOD_WITH_ARGS("DumpUnitsMatchingPatternsByFileDescriptor",
3094                                 SD_BUS_ARGS("as", patterns),
3095                                 SD_BUS_RESULT("h", fd),
3096                                 method_dump_units_matching_patterns_by_fd,
3097                                 SD_BUS_VTABLE_UNPRIVILEGED),
3098         SD_BUS_METHOD_WITH_ARGS("CreateSnapshot",
3099                                 SD_BUS_ARGS("s", name, "b", cleanup),
3100                                 SD_BUS_RESULT("o", unit),
3101                                 method_refuse_snapshot,
3102                                 SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_HIDDEN),
3103         SD_BUS_METHOD_WITH_ARGS("RemoveSnapshot",
3104                                 SD_BUS_ARGS("s", name),
3105                                 SD_BUS_NO_RESULT,
3106                                 method_refuse_snapshot,
3107                                 SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_HIDDEN),
3108         SD_BUS_METHOD("Reload",
3109                       NULL,
3110                       NULL,
3111                       method_reload,
3112                       SD_BUS_VTABLE_UNPRIVILEGED),
3113         SD_BUS_METHOD("Reexecute",
3114                       NULL,
3115                       NULL,
3116                       method_reexecute,
3117                       SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_METHOD_NO_REPLY),
3118         SD_BUS_METHOD("Exit",
3119                       NULL,
3120                       NULL,
3121                       method_exit,
3122                       0),
3123         SD_BUS_METHOD("Reboot",
3124                       NULL,
3125                       NULL,
3126                       method_reboot,
3127                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3128         SD_BUS_METHOD("PowerOff",
3129                       NULL,
3130                       NULL,
3131                       method_poweroff,
3132                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3133         SD_BUS_METHOD("Halt",
3134                       NULL,
3135                       NULL,
3136                       method_halt,
3137                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3138         SD_BUS_METHOD("KExec",
3139                       NULL,
3140                       NULL,
3141                       method_kexec,
3142                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3143         SD_BUS_METHOD_WITH_ARGS("SwitchRoot",
3144                                 SD_BUS_ARGS("s", new_root, "s", init),
3145                                 SD_BUS_NO_RESULT,
3146                                 method_switch_root,
3147                                 SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3148         SD_BUS_METHOD_WITH_ARGS("SetEnvironment",
3149                                 SD_BUS_ARGS("as", assignments),
3150                                 SD_BUS_NO_RESULT,
3151                                 method_set_environment,
3152                                 SD_BUS_VTABLE_UNPRIVILEGED),
3153         SD_BUS_METHOD_WITH_ARGS("UnsetEnvironment",
3154                                 SD_BUS_ARGS("as", names),
3155                                 SD_BUS_NO_RESULT,
3156                                 method_unset_environment,
3157                                 SD_BUS_VTABLE_UNPRIVILEGED),
3158         SD_BUS_METHOD_WITH_ARGS("UnsetAndSetEnvironment",
3159                                 SD_BUS_ARGS("as", names, "as", assignments),
3160                                 SD_BUS_NO_RESULT,
3161                                 method_unset_and_set_environment,
3162                                 SD_BUS_VTABLE_UNPRIVILEGED),
3163         SD_BUS_METHOD_WITH_ARGS("EnqueueMarkedJobs",
3164                                 SD_BUS_NO_ARGS,
3165                                 SD_BUS_RESULT("ao", jobs),
3166                                 method_enqueue_marked_jobs,
3167                                 SD_BUS_VTABLE_UNPRIVILEGED),
3168         SD_BUS_METHOD_WITH_ARGS("ListUnitFiles",
3169                                 SD_BUS_NO_ARGS,
3170                                 SD_BUS_RESULT("a(ss)", unit_files),
3171                                 method_list_unit_files,
3172                                 SD_BUS_VTABLE_UNPRIVILEGED),
3173         SD_BUS_METHOD_WITH_ARGS("ListUnitFilesByPatterns",
3174                                 SD_BUS_ARGS("as", states, "as", patterns),
3175                                 SD_BUS_RESULT("a(ss)", unit_files),
3176                                 method_list_unit_files_by_patterns,
3177                                 SD_BUS_VTABLE_UNPRIVILEGED),
3178         SD_BUS_METHOD_WITH_ARGS("GetUnitFileState",
3179                                 SD_BUS_ARGS("s", file),
3180                                 SD_BUS_RESULT("s", state),
3181                                 method_get_unit_file_state,
3182                                 SD_BUS_VTABLE_UNPRIVILEGED),
3183         SD_BUS_METHOD_WITH_ARGS("EnableUnitFiles",
3184                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3185                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3186                                 method_enable_unit_files,
3187                                 SD_BUS_VTABLE_UNPRIVILEGED),
3188         SD_BUS_METHOD_WITH_ARGS("DisableUnitFiles",
3189                                 SD_BUS_ARGS("as", files, "b", runtime),
3190                                 SD_BUS_RESULT("a(sss)", changes),
3191                                 method_disable_unit_files,
3192                                 SD_BUS_VTABLE_UNPRIVILEGED),
3193         SD_BUS_METHOD_WITH_ARGS("EnableUnitFilesWithFlags",
3194                                 SD_BUS_ARGS("as", files, "t", flags),
3195                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3196                                 method_enable_unit_files_with_flags,
3197                                 SD_BUS_VTABLE_UNPRIVILEGED),
3198         SD_BUS_METHOD_WITH_ARGS("DisableUnitFilesWithFlags",
3199                                 SD_BUS_ARGS("as", files, "t", flags),
3200                                 SD_BUS_RESULT("a(sss)", changes),
3201                                 method_disable_unit_files_with_flags,
3202                                 SD_BUS_VTABLE_UNPRIVILEGED),
3203         SD_BUS_METHOD_WITH_ARGS("DisableUnitFilesWithFlagsAndInstallInfo",
3204                                 SD_BUS_ARGS("as", files, "t", flags),
3205                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3206                                 method_disable_unit_files_with_flags_and_install_info,
3207                                 SD_BUS_VTABLE_UNPRIVILEGED),
3208         SD_BUS_METHOD_WITH_ARGS("ReenableUnitFiles",
3209                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3210                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3211                                 method_reenable_unit_files,
3212                                 SD_BUS_VTABLE_UNPRIVILEGED),
3213         SD_BUS_METHOD_WITH_ARGS("LinkUnitFiles",
3214                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3215                                 SD_BUS_RESULT("a(sss)", changes),
3216                                 method_link_unit_files,
3217                                 SD_BUS_VTABLE_UNPRIVILEGED),
3218         SD_BUS_METHOD_WITH_ARGS("PresetUnitFiles",
3219                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3220                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3221                                 method_preset_unit_files,
3222                                 SD_BUS_VTABLE_UNPRIVILEGED),
3223         SD_BUS_METHOD_WITH_ARGS("PresetUnitFilesWithMode",
3224                                 SD_BUS_ARGS("as", files, "s", mode, "b", runtime, "b", force),
3225                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3226                                 method_preset_unit_files_with_mode,
3227                                 SD_BUS_VTABLE_UNPRIVILEGED),
3228         SD_BUS_METHOD_WITH_ARGS("MaskUnitFiles",
3229                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3230                                 SD_BUS_RESULT("a(sss)", changes),
3231                                 method_mask_unit_files,
3232                                 SD_BUS_VTABLE_UNPRIVILEGED),
3233         SD_BUS_METHOD_WITH_ARGS("UnmaskUnitFiles",
3234                                 SD_BUS_ARGS("as", files, "b", runtime),
3235                                 SD_BUS_RESULT("a(sss)", changes),
3236                                 method_unmask_unit_files,
3237                                 SD_BUS_VTABLE_UNPRIVILEGED),
3238         SD_BUS_METHOD_WITH_ARGS("RevertUnitFiles",
3239                                 SD_BUS_ARGS("as", files),
3240                                 SD_BUS_RESULT("a(sss)", changes),
3241                                 method_revert_unit_files,
3242                                 SD_BUS_VTABLE_UNPRIVILEGED),
3243         SD_BUS_METHOD_WITH_ARGS("SetDefaultTarget",
3244                                 SD_BUS_ARGS("s", name, "b", force),
3245                                 SD_BUS_RESULT("a(sss)", changes),
3246                                 method_set_default_target,
3247                                 SD_BUS_VTABLE_UNPRIVILEGED),
3248         SD_BUS_METHOD_WITH_ARGS("GetDefaultTarget",
3249                                 SD_BUS_NO_ARGS,
3250                                 SD_BUS_RESULT("s", name),
3251                                 method_get_default_target,
3252                                 SD_BUS_VTABLE_UNPRIVILEGED),
3253         SD_BUS_METHOD_WITH_ARGS("PresetAllUnitFiles",
3254                                 SD_BUS_ARGS("s", mode, "b", runtime, "b", force),
3255                                 SD_BUS_RESULT("a(sss)", changes),
3256                                 method_preset_all_unit_files,
3257                                 SD_BUS_VTABLE_UNPRIVILEGED),
3258         SD_BUS_METHOD_WITH_ARGS("AddDependencyUnitFiles",
3259                                 SD_BUS_ARGS("as", files, "s", target, "s", type, "b", runtime, "b", force),
3260                                 SD_BUS_RESULT("a(sss)", changes),
3261                                 method_add_dependency_unit_files,
3262                                 SD_BUS_VTABLE_UNPRIVILEGED),
3263         SD_BUS_METHOD_WITH_ARGS("GetUnitFileLinks",
3264                                 SD_BUS_ARGS("s", name, "b", runtime),
3265                                 SD_BUS_RESULT("as", links),
3266                                 method_get_unit_file_links,
3267                                 SD_BUS_VTABLE_UNPRIVILEGED),
3268         SD_BUS_METHOD_WITH_ARGS("SetExitCode",
3269                                 SD_BUS_ARGS("y", number),
3270                                 SD_BUS_NO_RESULT,
3271                                 method_set_exit_code,
3272                                 SD_BUS_VTABLE_UNPRIVILEGED),
3273         SD_BUS_METHOD_WITH_ARGS("LookupDynamicUserByName",
3274                                 SD_BUS_ARGS("s", name),
3275                                 SD_BUS_RESULT("u", uid),
3276                                 method_lookup_dynamic_user_by_name,
3277                                 SD_BUS_VTABLE_UNPRIVILEGED),
3278         SD_BUS_METHOD_WITH_ARGS("LookupDynamicUserByUID",
3279                                 SD_BUS_ARGS("u", uid),
3280                                 SD_BUS_RESULT("s", name),
3281                                 method_lookup_dynamic_user_by_uid,
3282                                 SD_BUS_VTABLE_UNPRIVILEGED),
3283         SD_BUS_METHOD_WITH_ARGS("GetDynamicUsers",
3284                                 SD_BUS_NO_ARGS,
3285                                 SD_BUS_RESULT("a(us)", users),
3286                                 method_get_dynamic_users,
3287                                 SD_BUS_VTABLE_UNPRIVILEGED),
3288
3289         SD_BUS_SIGNAL_WITH_ARGS("UnitNew",
3290                                 SD_BUS_ARGS("s", id, "o", unit),
3291                                 0),
3292         SD_BUS_SIGNAL_WITH_ARGS("UnitRemoved",
3293                                 SD_BUS_ARGS("s", id, "o", unit),
3294                                 0),
3295         SD_BUS_SIGNAL_WITH_ARGS("JobNew",
3296                                 SD_BUS_ARGS("u", id, "o", job, "s", unit),
3297                                 0),
3298         SD_BUS_SIGNAL_WITH_ARGS("JobRemoved",
3299                                 SD_BUS_ARGS("u", id, "o", job, "s", unit, "s", result),
3300                                 0),
3301         SD_BUS_SIGNAL_WITH_ARGS("StartupFinished",
3302                                 SD_BUS_ARGS("t", firmware, "t", loader, "t", kernel, "t", initrd, "t", userspace, "t", total),
3303                                 0),
3304         SD_BUS_SIGNAL("UnitFilesChanged", NULL, 0),
3305         SD_BUS_SIGNAL_WITH_ARGS("Reloading",
3306                                 SD_BUS_ARGS("b", active),
3307                                 0),
3308
3309         SD_BUS_VTABLE_END
3310 };
3311
3312 const sd_bus_vtable bus_manager_log_control_vtable[] = {
3313         SD_BUS_VTABLE_START(0),
3314
3315         /* We define a private version of this interface here, since we want slightly different
3316          * implementations for the setters. We'll still use the generic getters however, and we share the
3317          * setters with the implementations for the Manager interface above (which pre-dates the generic
3318          * service API interface). */
3319
3320         SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", bus_property_get_log_level, property_set_log_level, 0, 0),
3321         SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", bus_property_get_log_target, property_set_log_target, 0, 0),
3322         SD_BUS_PROPERTY("SyslogIdentifier", "s", bus_property_get_syslog_identifier, 0, 0),
3323
3324         SD_BUS_VTABLE_END,
3325 };
3326
3327 static int send_finished(sd_bus *bus, void *userdata) {
3328         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
3329         usec_t *times = ASSERT_PTR(userdata);
3330         int r;
3331
3332         assert(bus);
3333
3334         r = sd_bus_message_new_signal(bus,
3335                                       &message,
3336                                       "/org/freedesktop/systemd1",
3337                                       "org.freedesktop.systemd1.Manager",
3338                                       "StartupFinished");
3339         if (r < 0)
3340                 return r;
3341
3342         r = sd_bus_message_append(message, "tttttt", times[0], times[1], times[2], times[3], times[4], times[5]);
3343         if (r < 0)
3344                 return r;
3345
3346         return sd_bus_send(bus, message, NULL);
3347 }
3348
3349 void bus_manager_send_finished(
3350                 Manager *m,
3351                 usec_t firmware_usec,
3352                 usec_t loader_usec,
3353                 usec_t kernel_usec,
3354                 usec_t initrd_usec,
3355                 usec_t userspace_usec,
3356                 usec_t total_usec) {
3357
3358         int r;
3359
3360         assert(m);
3361
3362         r = bus_foreach_bus(
3363                         m,
3364                         NULL,
3365                         send_finished,
3366                         (usec_t[6]) {
3367                                 firmware_usec,
3368                                 loader_usec,
3369                                 kernel_usec,
3370                                 initrd_usec,
3371                                 userspace_usec,
3372                                 total_usec
3373                         });
3374         if (r < 0)
3375                 log_debug_errno(r, "Failed to send finished signal: %m");
3376 }
3377
3378 static int send_reloading(sd_bus *bus, void *userdata) {
3379         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
3380         int r;
3381
3382         assert(bus);
3383
3384         r = sd_bus_message_new_signal(bus, &message, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Reloading");
3385         if (r < 0)
3386                 return r;
3387
3388         r = sd_bus_message_append(message, "b", PTR_TO_INT(userdata));
3389         if (r < 0)
3390                 return r;
3391
3392         return sd_bus_send(bus, message, NULL);
3393 }
3394
3395 void bus_manager_send_reloading(Manager *m, bool active) {
3396         int r;
3397
3398         assert(m);
3399
3400         r = bus_foreach_bus(m, NULL, send_reloading, INT_TO_PTR(active));
3401         if (r < 0)
3402                 log_debug_errno(r, "Failed to send reloading signal: %m");
3403 }
3404
3405 static int send_changed_signal(sd_bus *bus, void *userdata) {
3406         assert(bus);
3407
3408         return sd_bus_emit_properties_changed_strv(bus,
3409                                                    "/org/freedesktop/systemd1",
3410                                                    "org.freedesktop.systemd1.Manager",
3411                                                    NULL);
3412 }
3413
3414 void bus_manager_send_change_signal(Manager *m) {
3415         int r;
3416
3417         assert(m);
3418
3419         r = bus_foreach_bus(m, NULL, send_changed_signal, NULL);
3420         if (r < 0)
3421                 log_debug_errno(r, "Failed to send manager change signal: %m");
3422 }