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.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_get_unit_by_pidfd(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 657         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 658         Manager *m = ASSERT_PTR(userdata);
 659         _cleanup_free_ char *path = NULL;
 660         int r, pidfd;
 661         pid_t pid;
 662         Unit *u;
 663
 664         assert(message);
 665
 666         r = sd_bus_message_read(message, "h", &pidfd);
 667         if (r < 0)
 668                 return r;
 669
 670         r = pidfd_get_pid(pidfd, &pid);
 671         if (r < 0)
 672                 return sd_bus_error_set_errnof(error, r, "Failed to get PID from PIDFD: %m");
 673
 674         u = manager_get_unit_by_pid(m, pid);
 675         if (!u)
 676                 return sd_bus_error_setf(error, BUS_ERROR_NO_UNIT_FOR_PID, "PID "PID_FMT" does not belong to any loaded unit.", pid);
 677
 678         r = mac_selinux_unit_access_check(u, message, "status", error);
 679         if (r < 0)
 680                 return r;
 681
 682         path = unit_dbus_path(u);
 683         if (!path)
 684                 return log_oom();
 685
 686         r = sd_bus_message_new_method_return(message, &reply);
 687         if (r < 0)
 688                 return r;
 689
 690         r = sd_bus_message_append(reply, "os", path, u->id);
 691         if (r < 0)
 692                 return r;
 693
 694         r = sd_bus_message_append_array(reply, 'y', u->invocation_id.bytes, sizeof(u->invocation_id.bytes));
 695         if (r < 0)
 696                 return r;
 697
 698         /* Double-check that the process is still alive and that the PID did not change before returning the
 699          * answer. */
 700         r = pidfd_verify_pid(pidfd, pid);
 701         if (r == -ESRCH)
 702                 return sd_bus_error_setf(error,
 703                                          BUS_ERROR_NO_SUCH_PROCESS,
 704                                          "The PIDFD's PID "PID_FMT" changed during the lookup operation.",
 705                                          pid);
 706         if (r < 0)
 707                 return sd_bus_error_set_errnof(error, r, "Failed to get PID from PIDFD: %m");
 708
 709         return sd_bus_send(NULL, reply, NULL);
 710 }
 711
 712 static int method_load_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 713         Manager *m = ASSERT_PTR(userdata);
 714         const char *name;
 715         Unit *u;
 716         int r;
 717
 718         assert(message);
 719
 720         /* Anyone can call this method */
 721
 722         r = sd_bus_message_read(message, "s", &name);
 723         if (r < 0)
 724                 return r;
 725
 726         r = bus_load_unit_by_name(m, message, name, &u, error);
 727         if (r < 0)
 728                 return r;
 729
 730         return reply_unit_path(u, message, error);
 731 }
 732
 733 static int method_start_unit_generic(sd_bus_message *message, Manager *m, JobType job_type, bool reload_if_possible, sd_bus_error *error) {
 734         const char *name;
 735         Unit *u;
 736         int r;
 737
 738         assert(message);
 739         assert(m);
 740
 741         r = sd_bus_message_read(message, "s", &name);
 742         if (r < 0)
 743                 return r;
 744
 745         r = manager_load_unit(m, name, NULL, error, &u);
 746         if (r < 0)
 747                 return r;
 748
 749         return bus_unit_method_start_generic(message, u, job_type, reload_if_possible, error);
 750 }
 751
 752 static int method_start_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 753         return method_start_unit_generic(message, userdata, JOB_START, /* reload_if_possible = */ false, error);
 754 }
 755
 756 static int method_stop_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 757         return method_start_unit_generic(message, userdata, JOB_STOP, /* reload_if_possible = */ false, error);
 758 }
 759
 760 static int method_reload_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 761         return method_start_unit_generic(message, userdata, JOB_RELOAD, /* reload_if_possible = */ false, error);
 762 }
 763
 764 static int method_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 765         return method_start_unit_generic(message, userdata, JOB_RESTART, /* reload_if_possible = */ false, error);
 766 }
 767
 768 static int method_try_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 769         return method_start_unit_generic(message, userdata, JOB_TRY_RESTART, /* reload_if_possible = */ false, error);
 770 }
 771
 772 static int method_reload_or_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 773         return method_start_unit_generic(message, userdata, JOB_RESTART, /* reload_if_possible = */ true, error);
 774 }
 775
 776 static int method_reload_or_try_restart_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 777         return method_start_unit_generic(message, userdata, JOB_TRY_RESTART, /* reload_if_possible = */ true, error);
 778 }
 779
 780 typedef enum GenericUnitOperationFlags {
 781         GENERIC_UNIT_LOAD            = 1 << 0, /* Load if the unit is not loaded yet */
 782         GENERIC_UNIT_VALIDATE_LOADED = 1 << 1, /* Verify unit is properly loaded before forwarding call */
 783 } GenericUnitOperationFlags;
 784
 785 static int method_generic_unit_operation(
 786                 sd_bus_message *message,
 787                 Manager *m,
 788                 sd_bus_error *error,
 789                 sd_bus_message_handler_t handler,
 790                 GenericUnitOperationFlags flags) {
 791
 792         const char *name;
 793         Unit *u;
 794         int r;
 795
 796         assert(message);
 797         assert(m);
 798
 799         /* Read the first argument from the command and pass the operation to the specified per-unit
 800          * method. */
 801
 802         r = sd_bus_message_read(message, "s", &name);
 803         if (r < 0)
 804                 return r;
 805
 806         if (!isempty(name) && FLAGS_SET(flags, GENERIC_UNIT_LOAD))
 807                 r = manager_load_unit(m, name, NULL, error, &u);
 808         else
 809                 r = bus_get_unit_by_name(m, message, name, &u, error);
 810         if (r < 0)
 811                 return r;
 812
 813         if (FLAGS_SET(flags, GENERIC_UNIT_VALIDATE_LOADED)) {
 814                 r = bus_unit_validate_load_state(u, error);
 815                 if (r < 0)
 816                         return r;
 817         }
 818
 819         return handler(message, u, error);
 820 }
 821
 822 static int method_enqueue_unit_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 823         /* We don't bother with GENERIC_UNIT_VALIDATE_LOADED here, as the job logic validates that anyway */
 824         return method_generic_unit_operation(message, userdata, error, bus_unit_method_enqueue_job, GENERIC_UNIT_LOAD);
 825 }
 826
 827 static int method_start_unit_replace(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 828         Manager *m = ASSERT_PTR(userdata);
 829         const char *old_name;
 830         Unit *u;
 831         int r;
 832
 833         assert(message);
 834
 835         r = sd_bus_message_read(message, "s", &old_name);
 836         if (r < 0)
 837                 return r;
 838
 839         r = bus_get_unit_by_name(m, message, old_name, &u, error);
 840         if (r < 0)
 841                 return r;
 842         if (!u->job || u->job->type != JOB_START)
 843                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
 844
 845         return method_start_unit_generic(message, m, JOB_START, /* reload_if_possible = */ false, error);
 846 }
 847
 848 static int method_kill_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 849         /* We don't bother with GENERIC_UNIT_LOAD nor GENERIC_UNIT_VALIDATE_LOADED here, as it shouldn't
 850          * matter whether a unit is loaded for killing any processes possibly in the unit's cgroup. */
 851         return method_generic_unit_operation(message, userdata, error, bus_unit_method_kill, 0);
 852 }
 853
 854 static int method_clean_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 855         /* Load the unit if necessary, in order to load it, and insist on the unit being loaded to be
 856          * cleaned */
 857         return method_generic_unit_operation(message, userdata, error, bus_unit_method_clean, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 858 }
 859
 860 static int method_freeze_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 861         return method_generic_unit_operation(message, userdata, error, bus_unit_method_freeze, 0);
 862 }
 863
 864 static int method_thaw_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 865         return method_generic_unit_operation(message, userdata, error, bus_unit_method_thaw, 0);
 866 }
 867
 868 static int method_reset_failed_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 869         /* Don't load the unit (because unloaded units can't be in failed state), and don't insist on the
 870          * unit to be loaded properly (since a failed unit might have its unit file disappeared) */
 871         return method_generic_unit_operation(message, userdata, error, bus_unit_method_reset_failed, 0);
 872 }
 873
 874 static int method_set_unit_properties(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 875         /* Only change properties on fully loaded units, and load them in order to set properties */
 876         return method_generic_unit_operation(message, userdata, error, bus_unit_method_set_properties, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 877 }
 878
 879 static int method_bind_mount_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 880         /* Only add mounts on fully loaded units */
 881         return method_generic_unit_operation(message, userdata, error, bus_service_method_bind_mount, GENERIC_UNIT_VALIDATE_LOADED);
 882 }
 883
 884 static int method_mount_image_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 885         /* Only add mounts on fully loaded units */
 886         return method_generic_unit_operation(message, userdata, error, bus_service_method_mount_image, GENERIC_UNIT_VALIDATE_LOADED);
 887 }
 888
 889 static int method_ref_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 890         /* Only allow reffing of fully loaded units, and make sure reffing a unit loads it. */
 891         return method_generic_unit_operation(message, userdata, error, bus_unit_method_ref, GENERIC_UNIT_LOAD|GENERIC_UNIT_VALIDATE_LOADED);
 892 }
 893
 894 static int method_unref_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 895         /* Dropping a ref OTOH should not require the unit to still be loaded. And since a reffed unit is a
 896          * loaded unit there's no need to load the unit for unreffing it. */
 897         return method_generic_unit_operation(message, userdata, error, bus_unit_method_unref, 0);
 898 }
 899
 900 static int reply_unit_info(sd_bus_message *reply, Unit *u) {
 901         _cleanup_free_ char *unit_path = NULL, *job_path = NULL;
 902         Unit *following;
 903
 904         following = unit_following(u);
 905
 906         unit_path = unit_dbus_path(u);
 907         if (!unit_path)
 908                 return -ENOMEM;
 909
 910         if (u->job) {
 911                 job_path = job_dbus_path(u->job);
 912                 if (!job_path)
 913                         return -ENOMEM;
 914         }
 915
 916         return sd_bus_message_append(
 917                         reply, "(ssssssouso)",
 918                         u->id,
 919                         unit_description(u),
 920                         unit_load_state_to_string(u->load_state),
 921                         unit_active_state_to_string(unit_active_state(u)),
 922                         unit_sub_state_to_string(u),
 923                         following ? following->id : "",
 924                         unit_path,
 925                         u->job ? u->job->id : 0,
 926                         u->job ? job_type_to_string(u->job->type) : "",
 927                         empty_to_root(job_path));
 928 }
 929
 930 static int method_list_units_by_names(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 931         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
 932         Manager *m = ASSERT_PTR(userdata);
 933         int r;
 934         _cleanup_strv_free_ char **units = NULL;
 935
 936         assert(message);
 937
 938         r = sd_bus_message_read_strv(message, &units);
 939         if (r < 0)
 940                 return r;
 941
 942         r = sd_bus_message_new_method_return(message, &reply);
 943         if (r < 0)
 944                 return r;
 945
 946         r = sd_bus_message_open_container(reply, 'a', "(ssssssouso)");
 947         if (r < 0)
 948                 return r;
 949
 950         STRV_FOREACH(unit, units) {
 951                 Unit *u;
 952
 953                 if (!unit_name_is_valid(*unit, UNIT_NAME_ANY))
 954                         continue;
 955
 956                 r = bus_load_unit_by_name(m, message, *unit, &u, error);
 957                 if (r < 0)
 958                         return r;
 959
 960                 r = reply_unit_info(reply, u);
 961                 if (r < 0)
 962                         return r;
 963         }
 964
 965         r = sd_bus_message_close_container(reply);
 966         if (r < 0)
 967                 return r;
 968
 969         return sd_bus_send(NULL, reply, NULL);
 970 }
 971
 972 static int method_get_unit_processes(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 973         /* Don't load a unit (since it won't have any processes if it's not loaded), but don't insist on the
 974          * unit being loaded (because even improperly loaded units might still have processes around */
 975         return method_generic_unit_operation(message, userdata, error, bus_unit_method_get_processes, 0);
 976 }
 977
 978 static int method_attach_processes_to_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
 979         /* Don't allow attaching new processes to units that aren't loaded. Don't bother with loading a unit
 980          * for this purpose though, as an unloaded unit is a stopped unit, and we don't allow attaching
 981          * processes to stopped units anyway. */
 982         return method_generic_unit_operation(message, userdata, error, bus_unit_method_attach_processes, GENERIC_UNIT_VALIDATE_LOADED);
 983 }
 984
 985 static int transient_unit_from_message(
 986                 Manager *m,
 987                 sd_bus_message *message,
 988                 const char *name,
 989                 Unit **unit,
 990                 sd_bus_error *error) {
 991
 992         UnitType t;
 993         Unit *u;
 994         int r;
 995
 996         assert(m);
 997         assert(message);
 998         assert(name);
 999
1000         t = unit_name_to_type(name);
1001         if (t < 0)
1002                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1003                                          "Invalid unit name or type.");
1004
1005         if (!unit_vtable[t]->can_transient)
1006                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1007                                          "Unit type %s does not support transient units.",
1008                                          unit_type_to_string(t));
1009
1010         r = manager_load_unit(m, name, NULL, error, &u);
1011         if (r < 0)
1012                 return r;
1013
1014         if (!unit_is_pristine(u))
1015                 return sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
1016                                          "Unit %s was already loaded or has a fragment file.", name);
1017
1018         /* OK, the unit failed to load and is unreferenced, now let's
1019          * fill in the transient data instead */
1020         r = unit_make_transient(u);
1021         if (r < 0)
1022                 return r;
1023
1024         /* Set our properties */
1025         r = bus_unit_set_properties(u, message, UNIT_RUNTIME, false, error);
1026         if (r < 0)
1027                 return r;
1028
1029         /* If the client asked for it, automatically add a reference to this unit. */
1030         if (u->bus_track_add) {
1031                 r = bus_unit_track_add_sender(u, message);
1032                 if (r < 0)
1033                         return log_error_errno(r, "Failed to watch sender: %m");
1034         }
1035
1036         /* Now load the missing bits of the unit we just created */
1037         unit_add_to_load_queue(u);
1038         manager_dispatch_load_queue(m);
1039
1040         *unit = u;
1041
1042         return 0;
1043 }
1044
1045 static int transient_aux_units_from_message(
1046                 Manager *m,
1047                 sd_bus_message *message,
1048                 sd_bus_error *error) {
1049
1050         int r;
1051
1052         assert(m);
1053         assert(message);
1054
1055         r = sd_bus_message_enter_container(message, 'a', "(sa(sv))");
1056         if (r < 0)
1057                 return r;
1058
1059         while ((r = sd_bus_message_enter_container(message, 'r', "sa(sv)")) > 0) {
1060                 const char *name = NULL;
1061                 Unit *u;
1062
1063                 r = sd_bus_message_read(message, "s", &name);
1064                 if (r < 0)
1065                         return r;
1066
1067                 r = transient_unit_from_message(m, message, name, &u, error);
1068                 if (r < 0)
1069                         return r;
1070
1071                 r = sd_bus_message_exit_container(message);
1072                 if (r < 0)
1073                         return r;
1074         }
1075         if (r < 0)
1076                 return r;
1077
1078         r = sd_bus_message_exit_container(message);
1079         if (r < 0)
1080                 return r;
1081
1082         return 0;
1083 }
1084
1085 static int method_start_transient_unit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1086         const char *name, *smode;
1087         Manager *m = ASSERT_PTR(userdata);
1088         JobMode mode;
1089         Unit *u;
1090         int r;
1091
1092         assert(message);
1093
1094         r = mac_selinux_access_check(message, "start", error);
1095         if (r < 0)
1096                 return r;
1097
1098         r = sd_bus_message_read(message, "ss", &name, &smode);
1099         if (r < 0)
1100                 return r;
1101
1102         mode = job_mode_from_string(smode);
1103         if (mode < 0)
1104                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Job mode %s is invalid.", smode);
1105
1106         r = bus_verify_manage_units_async(m, message, error);
1107         if (r < 0)
1108                 return r;
1109         if (r == 0)
1110                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1111
1112         r = transient_unit_from_message(m, message, name, &u, error);
1113         if (r < 0)
1114                 return r;
1115
1116         r = transient_aux_units_from_message(m, message, error);
1117         if (r < 0)
1118                 return r;
1119
1120         /* Finally, start it */
1121         return bus_unit_queue_job(message, u, JOB_START, mode, 0, error);
1122 }
1123
1124 static int method_get_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1125         _cleanup_free_ char *path = NULL;
1126         Manager *m = ASSERT_PTR(userdata);
1127         uint32_t id;
1128         Job *j;
1129         int r;
1130
1131         assert(message);
1132
1133         /* Anyone can call this method */
1134
1135         r = sd_bus_message_read(message, "u", &id);
1136         if (r < 0)
1137                 return r;
1138
1139         j = manager_get_job(m, id);
1140         if (!j)
1141                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
1142
1143         r = mac_selinux_unit_access_check(j->unit, message, "status", error);
1144         if (r < 0)
1145                 return r;
1146
1147         path = job_dbus_path(j);
1148         if (!path)
1149                 return -ENOMEM;
1150
1151         return sd_bus_reply_method_return(message, "o", path);
1152 }
1153
1154 static int method_cancel_job(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1155         Manager *m = ASSERT_PTR(userdata);
1156         uint32_t id;
1157         Job *j;
1158         int r;
1159
1160         assert(message);
1161
1162         r = sd_bus_message_read(message, "u", &id);
1163         if (r < 0)
1164                 return r;
1165
1166         j = manager_get_job(m, id);
1167         if (!j)
1168                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
1169
1170         return bus_job_method_cancel(message, j, error);
1171 }
1172
1173 static int method_clear_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1174         Manager *m = ASSERT_PTR(userdata);
1175         int r;
1176
1177         assert(message);
1178
1179         r = mac_selinux_access_check(message, "reload", error);
1180         if (r < 0)
1181                 return r;
1182
1183         r = bus_verify_manage_units_async(m, message, error);
1184         if (r < 0)
1185                 return r;
1186         if (r == 0)
1187                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1188
1189         manager_clear_jobs(m);
1190
1191         return sd_bus_reply_method_return(message, NULL);
1192 }
1193
1194 static int method_reset_failed(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1195         Manager *m = ASSERT_PTR(userdata);
1196         int r;
1197
1198         assert(message);
1199
1200         r = mac_selinux_access_check(message, "reload", error);
1201         if (r < 0)
1202                 return r;
1203
1204         r = bus_verify_manage_units_async(m, message, error);
1205         if (r < 0)
1206                 return r;
1207         if (r == 0)
1208                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1209
1210         manager_reset_failed(m);
1211
1212         return sd_bus_reply_method_return(message, NULL);
1213 }
1214
1215 static int list_units_filtered(sd_bus_message *message, void *userdata, sd_bus_error *error, char **states, char **patterns) {
1216         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1217         Manager *m = ASSERT_PTR(userdata);
1218         const char *k;
1219         Unit *u;
1220         int r;
1221
1222         assert(message);
1223
1224         /* Anyone can call this method */
1225
1226         r = mac_selinux_access_check(message, "status", error);
1227         if (r < 0)
1228                 return r;
1229
1230         r = sd_bus_message_new_method_return(message, &reply);
1231         if (r < 0)
1232                 return r;
1233
1234         r = sd_bus_message_open_container(reply, 'a', "(ssssssouso)");
1235         if (r < 0)
1236                 return r;
1237
1238         HASHMAP_FOREACH_KEY(u, k, m->units) {
1239                 if (k != u->id)
1240                         continue;
1241
1242                 if (!strv_isempty(states) &&
1243                     !strv_contains(states, unit_load_state_to_string(u->load_state)) &&
1244                     !strv_contains(states, unit_active_state_to_string(unit_active_state(u))) &&
1245                     !strv_contains(states, unit_sub_state_to_string(u)))
1246                         continue;
1247
1248                 if (!strv_isempty(patterns) &&
1249                     !strv_fnmatch_or_empty(patterns, u->id, FNM_NOESCAPE))
1250                         continue;
1251
1252                 r = reply_unit_info(reply, u);
1253                 if (r < 0)
1254                         return r;
1255         }
1256
1257         r = sd_bus_message_close_container(reply);
1258         if (r < 0)
1259                 return r;
1260
1261         return sd_bus_send(NULL, reply, NULL);
1262 }
1263
1264 static int method_list_units(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1265         return list_units_filtered(message, userdata, error, NULL, NULL);
1266 }
1267
1268 static int method_list_units_filtered(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1269         _cleanup_strv_free_ char **states = NULL;
1270         int r;
1271
1272         r = sd_bus_message_read_strv(message, &states);
1273         if (r < 0)
1274                 return r;
1275
1276         return list_units_filtered(message, userdata, error, states, NULL);
1277 }
1278
1279 static int method_list_units_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1280         _cleanup_strv_free_ char **states = NULL;
1281         _cleanup_strv_free_ char **patterns = NULL;
1282         int r;
1283
1284         r = sd_bus_message_read_strv(message, &states);
1285         if (r < 0)
1286                 return r;
1287
1288         r = sd_bus_message_read_strv(message, &patterns);
1289         if (r < 0)
1290                 return r;
1291
1292         return list_units_filtered(message, userdata, error, states, patterns);
1293 }
1294
1295 static int method_list_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1296         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
1297         Manager *m = ASSERT_PTR(userdata);
1298         Job *j;
1299         int r;
1300
1301         assert(message);
1302
1303         /* Anyone can call this method */
1304
1305         r = mac_selinux_access_check(message, "status", error);
1306         if (r < 0)
1307                 return r;
1308
1309         r = sd_bus_message_new_method_return(message, &reply);
1310         if (r < 0)
1311                 return r;
1312
1313         r = sd_bus_message_open_container(reply, 'a', "(usssoo)");
1314         if (r < 0)
1315                 return r;
1316
1317         HASHMAP_FOREACH(j, m->jobs) {
1318                 _cleanup_free_ char *unit_path = NULL, *job_path = NULL;
1319
1320                 job_path = job_dbus_path(j);
1321                 if (!job_path)
1322                         return -ENOMEM;
1323
1324                 unit_path = unit_dbus_path(j->unit);
1325                 if (!unit_path)
1326                         return -ENOMEM;
1327
1328                 r = sd_bus_message_append(
1329                                 reply, "(usssoo)",
1330                                 j->id,
1331                                 j->unit->id,
1332                                 job_type_to_string(j->type),
1333                                 job_state_to_string(j->state),
1334                                 job_path,
1335                                 unit_path);
1336                 if (r < 0)
1337                         return r;
1338         }
1339
1340         r = sd_bus_message_close_container(reply);
1341         if (r < 0)
1342                 return r;
1343
1344         return sd_bus_send(NULL, reply, NULL);
1345 }
1346
1347 static int method_subscribe(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1348         Manager *m = ASSERT_PTR(userdata);
1349         int r;
1350
1351         assert(message);
1352
1353         /* Anyone can call this method */
1354
1355         r = mac_selinux_access_check(message, "status", error);
1356         if (r < 0)
1357                 return r;
1358
1359         if (sd_bus_message_get_bus(message) == m->api_bus) {
1360
1361                 /* Note that direct bus connection subscribe by
1362                  * default, we only track peers on the API bus here */
1363
1364                 if (!m->subscribed) {
1365                         r = sd_bus_track_new(sd_bus_message_get_bus(message), &m->subscribed, NULL, NULL);
1366                         if (r < 0)
1367                                 return r;
1368                 }
1369
1370                 r = sd_bus_track_add_sender(m->subscribed, message);
1371                 if (r < 0)
1372                         return r;
1373                 if (r == 0)
1374                         return sd_bus_error_set(error, BUS_ERROR_ALREADY_SUBSCRIBED, "Client is already subscribed.");
1375         }
1376
1377         return sd_bus_reply_method_return(message, NULL);
1378 }
1379
1380 static int method_unsubscribe(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1381         Manager *m = ASSERT_PTR(userdata);
1382         int r;
1383
1384         assert(message);
1385
1386         /* Anyone can call this method */
1387
1388         r = mac_selinux_access_check(message, "status", error);
1389         if (r < 0)
1390                 return r;
1391
1392         if (sd_bus_message_get_bus(message) == m->api_bus) {
1393                 r = sd_bus_track_remove_sender(m->subscribed, message);
1394                 if (r < 0)
1395                         return r;
1396                 if (r == 0)
1397                         return sd_bus_error_set(error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
1398         }
1399
1400         return sd_bus_reply_method_return(message, NULL);
1401 }
1402
1403 static int dump_impl(
1404                 sd_bus_message *message,
1405                 void *userdata,
1406                 sd_bus_error *error,
1407                 char **patterns,
1408                 int (*reply)(sd_bus_message *, char *)) {
1409
1410         _cleanup_free_ char *dump = NULL;
1411         Manager *m = ASSERT_PTR(userdata);
1412         int r;
1413
1414         assert(message);
1415
1416         /* Anyone can call this method */
1417
1418         r = mac_selinux_access_check(message, "status", error);
1419         if (r < 0)
1420                 return r;
1421
1422         r = manager_get_dump_string(m, patterns, &dump);
1423         if (r < 0)
1424                 return r;
1425
1426         return reply(message, dump);
1427 }
1428
1429 static int reply_dump(sd_bus_message *message, char *dump) {
1430         return sd_bus_reply_method_return(message, "s", dump);
1431 }
1432
1433 static int method_dump(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1434         return dump_impl(message, userdata, error, NULL, reply_dump);
1435 }
1436
1437 static int reply_dump_by_fd(sd_bus_message *message, char *dump) {
1438         _cleanup_close_ int fd = -EBADF;
1439
1440         fd = acquire_data_fd(dump, strlen(dump), 0);
1441         if (fd < 0)
1442                 return fd;
1443
1444         return sd_bus_reply_method_return(message, "h", fd);
1445 }
1446
1447 static int method_dump_by_fd(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1448         return dump_impl(message, userdata, error, NULL, reply_dump_by_fd);
1449 }
1450
1451 static int dump_units_matching_patterns(
1452                 sd_bus_message *message,
1453                 void *userdata,
1454                 sd_bus_error *error,
1455                 int (*reply)(sd_bus_message *, char *)) {
1456         _cleanup_strv_free_ char **patterns = NULL;
1457         int r;
1458
1459         r = sd_bus_message_read_strv(message, &patterns);
1460         if (r < 0)
1461                 return r;
1462
1463         return dump_impl(message, userdata, error, patterns, reply);
1464 }
1465
1466 static int method_dump_units_matching_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1467         return dump_units_matching_patterns(message, userdata, error, reply_dump);
1468 }
1469
1470 static int method_dump_units_matching_patterns_by_fd(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1471         return dump_units_matching_patterns(message, userdata, error, reply_dump_by_fd);
1472 }
1473
1474 static int method_refuse_snapshot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1475         return sd_bus_error_set(error, SD_BUS_ERROR_NOT_SUPPORTED, "Support for snapshots has been removed.");
1476 }
1477
1478 static int get_run_space(uint64_t *ret, sd_bus_error *error) {
1479         struct statvfs svfs;
1480
1481         assert(ret);
1482
1483         if (statvfs("/run/systemd", &svfs) < 0)
1484                 return sd_bus_error_set_errnof(error, errno, "Failed to statvfs(/run/systemd): %m");
1485
1486         *ret = (uint64_t) svfs.f_bfree * (uint64_t) svfs.f_bsize;
1487         return 0;
1488 }
1489
1490 static int verify_run_space(const char *message, sd_bus_error *error) {
1491         uint64_t available = 0; /* unnecessary, but used to trick out gcc's incorrect maybe-uninitialized warning */
1492         int r;
1493
1494         assert(message);
1495
1496         r = get_run_space(&available, error);
1497         if (r < 0)
1498                 return r;
1499
1500         if (available < RELOAD_DISK_SPACE_MIN)
1501                 return sd_bus_error_setf(error,
1502                                          BUS_ERROR_DISK_FULL,
1503                                          "%s, not enough space available on /run/systemd/. "
1504                                          "Currently, %s are free, but a safety buffer of %s is enforced.",
1505                                          message,
1506                                          FORMAT_BYTES(available),
1507                                          FORMAT_BYTES(RELOAD_DISK_SPACE_MIN));
1508
1509         return 0;
1510 }
1511
1512 int verify_run_space_and_log(const char *message) {
1513         _cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
1514         int r;
1515
1516         assert(message);
1517
1518         r = verify_run_space(message, &error);
1519         if (r < 0)
1520                 return log_error_errno(r, "%s", bus_error_message(&error, r));
1521
1522         return 0;
1523 }
1524
1525 static int verify_run_space_permissive(const char *message, sd_bus_error *error) {
1526         uint64_t available = 0; /* unnecessary, but used to trick out gcc's incorrect maybe-uninitialized warning */
1527         int r;
1528
1529         assert(message);
1530
1531         r = get_run_space(&available, error);
1532         if (r < 0)
1533                 return r;
1534
1535         if (available < RELOAD_DISK_SPACE_MIN)
1536                 log_warning("Dangerously low amount of free space on /run/systemd/, %s.\n"
1537                             "Currently, %s are free, but %s are suggested. Proceeding anyway.",
1538                             message,
1539                             FORMAT_BYTES(available),
1540                             FORMAT_BYTES(RELOAD_DISK_SPACE_MIN));
1541
1542         return 0;
1543 }
1544
1545 static void log_caller(sd_bus_message *message, Manager *manager, const char *method) {
1546         _cleanup_(sd_bus_creds_unrefp) sd_bus_creds *creds = NULL;
1547         const char *comm = NULL;
1548         Unit *caller;
1549         pid_t pid;
1550
1551         assert(message);
1552         assert(manager);
1553         assert(method);
1554
1555         if (sd_bus_query_sender_creds(message, SD_BUS_CREDS_PID|SD_BUS_CREDS_AUGMENT|SD_BUS_CREDS_COMM, &creds) < 0)
1556                 return;
1557
1558         /* We need at least the PID, otherwise there's nothing to log, the rest is optional */
1559         if (sd_bus_creds_get_pid(creds, &pid) < 0)
1560                 return;
1561
1562         (void) sd_bus_creds_get_comm(creds, &comm);
1563         caller = manager_get_unit_by_pid(manager, pid);
1564
1565         log_info("%s requested from client PID " PID_FMT "%s%s%s%s%s%s...",
1566                  method, pid,
1567                  comm ? " ('" : "", strempty(comm), comm ? "')" : "",
1568                  caller ? " (unit " : "", caller ? caller->id : "", caller ? ")" : "");
1569 }
1570
1571 static int method_reload(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1572         Manager *m = ASSERT_PTR(userdata);
1573         int r;
1574
1575         assert(message);
1576
1577         r = verify_run_space("Refusing to reload", error);
1578         if (r < 0)
1579                 return r;
1580
1581         r = mac_selinux_access_check(message, "reload", error);
1582         if (r < 0)
1583                 return r;
1584
1585         r = bus_verify_reload_daemon_async(m, message, error);
1586         if (r < 0)
1587                 return r;
1588         if (r == 0)
1589                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1590
1591         /* Write a log message noting the unit or process who requested the Reload() */
1592         log_caller(message, m, "Reloading");
1593
1594         /* Check the rate limit after the authorization succeeds, to avoid denial-of-service issues. */
1595         if (!ratelimit_below(&m->reload_ratelimit)) {
1596                 log_warning("Reloading request rejected due to rate limit.");
1597                 return sd_bus_error_setf(error,
1598                                          SD_BUS_ERROR_LIMITS_EXCEEDED,
1599                                          "Reload() request rejected due to rate limit.");
1600         }
1601
1602         /* Instead of sending the reply back right away, we just
1603          * remember that we need to and then send it after the reload
1604          * is finished. That way the caller knows when the reload
1605          * finished. */
1606
1607         assert(!m->pending_reload_message);
1608         r = sd_bus_message_new_method_return(message, &m->pending_reload_message);
1609         if (r < 0)
1610                 return r;
1611
1612         m->objective = MANAGER_RELOAD;
1613
1614         return 1;
1615 }
1616
1617 static int method_reexecute(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1618         Manager *m = ASSERT_PTR(userdata);
1619         int r;
1620
1621         assert(message);
1622
1623         r = verify_run_space("Refusing to reexecute", error);
1624         if (r < 0)
1625                 return r;
1626
1627         r = mac_selinux_access_check(message, "reload", error);
1628         if (r < 0)
1629                 return r;
1630
1631         r = bus_verify_reload_daemon_async(m, message, error);
1632         if (r < 0)
1633                 return r;
1634         if (r == 0)
1635                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1636
1637         /* Write a log message noting the unit or process who requested the Reexecute() */
1638         log_caller(message, m, "Reexecuting");
1639
1640         /* We don't send a reply back here, the client should
1641          * just wait for us disconnecting. */
1642
1643         m->objective = MANAGER_REEXECUTE;
1644         return 1;
1645 }
1646
1647 static int method_exit(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1648         Manager *m = ASSERT_PTR(userdata);
1649         int r;
1650
1651         assert(message);
1652
1653         r = mac_selinux_access_check(message, "halt", error);
1654         if (r < 0)
1655                 return r;
1656
1657         /* Exit() (in contrast to SetExitCode()) is actually allowed even if
1658          * we are running on the host. It will fall back on reboot() in
1659          * systemd-shutdown if it cannot do the exit() because it isn't a
1660          * container. */
1661
1662         m->objective = MANAGER_EXIT;
1663
1664         return sd_bus_reply_method_return(message, NULL);
1665 }
1666
1667 static int method_reboot(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1668         Manager *m = ASSERT_PTR(userdata);
1669         int r;
1670
1671         assert(message);
1672
1673         r = mac_selinux_access_check(message, "reboot", error);
1674         if (r < 0)
1675                 return r;
1676
1677         if (!MANAGER_IS_SYSTEM(m))
1678                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1679                                          "Reboot is only supported for system managers.");
1680
1681         m->objective = MANAGER_REBOOT;
1682
1683         return sd_bus_reply_method_return(message, NULL);
1684 }
1685
1686 static int method_poweroff(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1687         Manager *m = ASSERT_PTR(userdata);
1688         int r;
1689
1690         assert(message);
1691
1692         r = mac_selinux_access_check(message, "halt", error);
1693         if (r < 0)
1694                 return r;
1695
1696         if (!MANAGER_IS_SYSTEM(m))
1697                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1698                                          "Powering off is only supported for system managers.");
1699
1700         m->objective = MANAGER_POWEROFF;
1701
1702         return sd_bus_reply_method_return(message, NULL);
1703 }
1704
1705 static int method_halt(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1706         Manager *m = ASSERT_PTR(userdata);
1707         int r;
1708
1709         assert(message);
1710
1711         r = mac_selinux_access_check(message, "halt", error);
1712         if (r < 0)
1713                 return r;
1714
1715         if (!MANAGER_IS_SYSTEM(m))
1716                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1717                                          "Halt is only supported for system managers.");
1718
1719         m->objective = MANAGER_HALT;
1720
1721         return sd_bus_reply_method_return(message, NULL);
1722 }
1723
1724 static int method_kexec(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1725         Manager *m = ASSERT_PTR(userdata);
1726         int r;
1727
1728         assert(message);
1729
1730         r = mac_selinux_access_check(message, "reboot", error);
1731         if (r < 0)
1732                 return r;
1733
1734         if (!MANAGER_IS_SYSTEM(m))
1735                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1736                                          "KExec is only supported for system managers.");
1737
1738         m->objective = MANAGER_KEXEC;
1739
1740         return sd_bus_reply_method_return(message, NULL);
1741 }
1742
1743 static int method_switch_root(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1744         _cleanup_free_ char *ri = NULL, *rt = NULL;
1745         const char *root, *init;
1746         Manager *m = ASSERT_PTR(userdata);
1747         int r;
1748
1749         assert(message);
1750
1751         r = verify_run_space_permissive("root switching may fail", error);
1752         if (r < 0)
1753                 return r;
1754
1755         r = mac_selinux_access_check(message, "reboot", error);
1756         if (r < 0)
1757                 return r;
1758
1759         if (!MANAGER_IS_SYSTEM(m))
1760                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1761                                          "Root switching is only supported by system manager.");
1762
1763         r = sd_bus_message_read(message, "ss", &root, &init);
1764         if (r < 0)
1765                 return r;
1766
1767         if (isempty(root))
1768                 /* If path is not specified, default to "/sysroot" which is what we generally expect initrds
1769                  * to use */
1770                 root = "/sysroot";
1771         else {
1772                 if (!path_is_valid(root))
1773                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1774                                                  "New root directory must be a valid path.");
1775                 if (!path_is_absolute(root))
1776                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1777                                                  "New root path '%s' is not absolute.", root);
1778                 if (path_equal(root, "/"))
1779                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1780                                                  "New root directory cannot be the old root directory.");
1781         }
1782
1783         /* Safety check */
1784         if (isempty(init)) {
1785                 r = path_is_os_tree(root);
1786                 if (r < 0)
1787                         return sd_bus_error_set_errnof(error, r,
1788                                                        "Failed to determine whether root path '%s' contains an OS tree: %m",
1789                                                        root);
1790                 if (r == 0)
1791                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1792                                                  "Specified switch root path '%s' does not seem to be an OS tree. os-release file is missing.",
1793                                                  root);
1794         } else {
1795                 if (!path_is_valid(init))
1796                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1797                                                  "Path to init binary '%s' is not a valid path.", init);
1798
1799                 if (!path_is_absolute(init))
1800                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1801                                                  "Path to init binary '%s' not absolute.", init);
1802
1803                 r = chase_and_access(init, root, CHASE_PREFIX_ROOT, X_OK, NULL);
1804                 if (r == -EACCES)
1805                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1806                                                  "Init binary %s is not executable.", init);
1807                 if (r < 0)
1808                         return sd_bus_error_set_errnof(error, r,
1809                                                        "Could not resolve init executable %s: %m", init);
1810         }
1811
1812         rt = strdup(root);
1813         if (!rt)
1814                 return -ENOMEM;
1815
1816         if (!isempty(init)) {
1817                 ri = strdup(init);
1818                 if (!ri)
1819                         return -ENOMEM;
1820         }
1821
1822         free_and_replace(m->switch_root, rt);
1823         free_and_replace(m->switch_root_init, ri);
1824
1825         m->objective = MANAGER_SWITCH_ROOT;
1826
1827         return sd_bus_reply_method_return(message, NULL);
1828 }
1829
1830 static int method_set_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1831         _cleanup_strv_free_ char **plus = NULL;
1832         Manager *m = ASSERT_PTR(userdata);
1833         int r;
1834
1835         assert(message);
1836
1837         r = mac_selinux_access_check(message, "reload", error);
1838         if (r < 0)
1839                 return r;
1840
1841         r = sd_bus_message_read_strv(message, &plus);
1842         if (r < 0)
1843                 return r;
1844         if (!strv_env_is_valid(plus))
1845                 return sd_bus_error_set(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid environment assignments");
1846
1847         r = bus_verify_set_environment_async(m, message, error);
1848         if (r < 0)
1849                 return r;
1850         if (r == 0)
1851                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1852
1853         r = manager_client_environment_modify(m, NULL, plus);
1854         if (r < 0)
1855                 return r;
1856
1857         return sd_bus_reply_method_return(message, NULL);
1858 }
1859
1860 static int method_unset_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1861         _cleanup_strv_free_ char **minus = NULL;
1862         Manager *m = ASSERT_PTR(userdata);
1863         int r;
1864
1865         assert(message);
1866
1867         r = mac_selinux_access_check(message, "reload", error);
1868         if (r < 0)
1869                 return r;
1870
1871         r = sd_bus_message_read_strv(message, &minus);
1872         if (r < 0)
1873                 return r;
1874
1875         if (!strv_env_name_or_assignment_is_valid(minus))
1876                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1877                                          "Invalid environment variable names or assignments");
1878
1879         r = bus_verify_set_environment_async(m, message, error);
1880         if (r < 0)
1881                 return r;
1882         if (r == 0)
1883                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1884
1885         r = manager_client_environment_modify(m, minus, NULL);
1886         if (r < 0)
1887                 return r;
1888
1889         return sd_bus_reply_method_return(message, NULL);
1890 }
1891
1892 static int method_unset_and_set_environment(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1893         _cleanup_strv_free_ char **minus = NULL, **plus = NULL;
1894         Manager *m = ASSERT_PTR(userdata);
1895         int r;
1896
1897         assert(message);
1898
1899         r = mac_selinux_access_check(message, "reload", error);
1900         if (r < 0)
1901                 return r;
1902
1903         r = sd_bus_message_read_strv(message, &minus);
1904         if (r < 0)
1905                 return r;
1906
1907         r = sd_bus_message_read_strv(message, &plus);
1908         if (r < 0)
1909                 return r;
1910
1911         if (!strv_env_name_or_assignment_is_valid(minus))
1912                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1913                                          "Invalid environment variable names or assignments");
1914         if (!strv_env_is_valid(plus))
1915                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1916                                          "Invalid environment assignments");
1917
1918         r = bus_verify_set_environment_async(m, message, error);
1919         if (r < 0)
1920                 return r;
1921         if (r == 0)
1922                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
1923
1924         r = manager_client_environment_modify(m, minus, plus);
1925         if (r < 0)
1926                 return r;
1927
1928         return sd_bus_reply_method_return(message, NULL);
1929 }
1930
1931 static int method_set_exit_code(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1932         Manager *m = ASSERT_PTR(userdata);
1933         uint8_t code;
1934         int r;
1935
1936         assert(message);
1937
1938         r = mac_selinux_access_check(message, "exit", error);
1939         if (r < 0)
1940                 return r;
1941
1942         r = sd_bus_message_read_basic(message, 'y', &code);
1943         if (r < 0)
1944                 return r;
1945
1946         m->return_value = code;
1947
1948         return sd_bus_reply_method_return(message, NULL);
1949 }
1950
1951 static int method_lookup_dynamic_user_by_name(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1952         Manager *m = ASSERT_PTR(userdata);
1953         const char *name;
1954         uid_t uid;
1955         int r;
1956
1957         assert(message);
1958
1959         r = sd_bus_message_read_basic(message, 's', &name);
1960         if (r < 0)
1961                 return r;
1962
1963         if (!MANAGER_IS_SYSTEM(m))
1964                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1965                                          "Dynamic users are only supported in the system instance.");
1966         if (!valid_user_group_name(name, VALID_USER_RELAX))
1967                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1968                                          "User name invalid: %s", name);
1969
1970         r = dynamic_user_lookup_name(m, name, &uid);
1971         if (r == -ESRCH)
1972                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_DYNAMIC_USER,
1973                                          "Dynamic user %s does not exist.", name);
1974         if (r < 0)
1975                 return r;
1976
1977         return sd_bus_reply_method_return(message, "u", (uint32_t) uid);
1978 }
1979
1980 static int method_lookup_dynamic_user_by_uid(sd_bus_message *message, void *userdata, sd_bus_error *error) {
1981         _cleanup_free_ char *name = NULL;
1982         Manager *m = ASSERT_PTR(userdata);
1983         uid_t uid;
1984         int r;
1985
1986         assert(message);
1987
1988         assert_cc(sizeof(uid_t) == sizeof(uint32_t));
1989         r = sd_bus_message_read_basic(message, 'u', &uid);
1990         if (r < 0)
1991                 return r;
1992
1993         if (!MANAGER_IS_SYSTEM(m))
1994                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
1995                                          "Dynamic users are only supported in the system instance.");
1996         if (!uid_is_valid(uid))
1997                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
1998                                          "User ID invalid: " UID_FMT, uid);
1999
2000         r = dynamic_user_lookup_uid(m, uid, &name);
2001         if (r == -ESRCH)
2002                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_DYNAMIC_USER,
2003                                          "Dynamic user ID " UID_FMT " does not exist.", uid);
2004         if (r < 0)
2005                 return r;
2006
2007         return sd_bus_reply_method_return(message, "s", name);
2008 }
2009
2010 static int method_get_dynamic_users(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2011         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2012         Manager *m = ASSERT_PTR(userdata);
2013         DynamicUser *d;
2014         int r;
2015
2016         assert(message);
2017
2018         assert_cc(sizeof(uid_t) == sizeof(uint32_t));
2019
2020         if (!MANAGER_IS_SYSTEM(m))
2021                 return sd_bus_error_setf(error, SD_BUS_ERROR_NOT_SUPPORTED,
2022                                          "Dynamic users are only supported in the system instance.");
2023
2024         r = sd_bus_message_new_method_return(message, &reply);
2025         if (r < 0)
2026                 return r;
2027
2028         r = sd_bus_message_open_container(reply, 'a', "(us)");
2029         if (r < 0)
2030                 return r;
2031
2032         HASHMAP_FOREACH(d, m->dynamic_users) {
2033                 uid_t uid;
2034
2035                 r = dynamic_user_current(d, &uid);
2036                 if (r == -EAGAIN) /* not realized yet? */
2037                         continue;
2038                 if (r < 0)
2039                         return sd_bus_error_setf(error, SD_BUS_ERROR_FAILED,
2040                                                  "Failed to look up a dynamic user.");
2041
2042                 r = sd_bus_message_append(reply, "(us)", uid, d->name);
2043                 if (r < 0)
2044                         return r;
2045         }
2046
2047         r = sd_bus_message_close_container(reply);
2048         if (r < 0)
2049                 return r;
2050
2051         return sd_bus_send(NULL, reply, NULL);
2052 }
2053
2054 static int method_enqueue_marked_jobs(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2055         Manager *m = ASSERT_PTR(userdata);
2056         int r;
2057
2058         assert(message);
2059
2060         r = mac_selinux_access_check(message, "start", error);
2061         if (r < 0)
2062                 return r;
2063
2064         r = bus_verify_manage_units_async(m, message, error);
2065         if (r < 0)
2066                 return r;
2067         if (r == 0)
2068                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2069
2070         log_info("Queuing reload/restart jobs for marked units%s", special_glyph(SPECIAL_GLYPH_ELLIPSIS));
2071
2072         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2073         r = sd_bus_message_new_method_return(message, &reply);
2074         if (r < 0)
2075                 return r;
2076
2077         r = sd_bus_message_open_container(reply, 'a', "o");
2078         if (r < 0)
2079                 return r;
2080
2081         Unit *u;
2082         char *k;
2083         int ret = 0;
2084         HASHMAP_FOREACH_KEY(u, k, m->units) {
2085                 /* ignore aliases */
2086                 if (u->id != k)
2087                         continue;
2088
2089                 BusUnitQueueFlags flags;
2090                 if (FLAGS_SET(u->markers, 1u << UNIT_MARKER_NEEDS_RESTART))
2091                         flags = 0;
2092                 else if (FLAGS_SET(u->markers, 1u << UNIT_MARKER_NEEDS_RELOAD))
2093                         flags = BUS_UNIT_QUEUE_RELOAD_IF_POSSIBLE;
2094                 else
2095                         continue;
2096
2097                 r = mac_selinux_unit_access_check(u, message, "start", error);
2098                 if (r >= 0)
2099                         r = bus_unit_queue_job_one(message, u,
2100                                                    JOB_TRY_RESTART, JOB_FAIL, flags,
2101                                                    reply, error);
2102                 if (r < 0) {
2103                         if (ERRNO_IS_RESOURCE(r))
2104                                 return r;
2105                         if (ret >= 0)
2106                                 ret = r;
2107                         sd_bus_error_free(error);
2108                 }
2109         }
2110
2111         if (ret < 0)
2112                 return sd_bus_error_set_errnof(error, ret,
2113                                                "Failed to enqueue some jobs, see logs for details: %m");
2114
2115         r = sd_bus_message_close_container(reply);
2116         if (r < 0)
2117                 return r;
2118
2119         return sd_bus_send(NULL, reply, NULL);
2120 }
2121
2122 static int list_unit_files_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error, char **states, char **patterns) {
2123         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2124         Manager *m = ASSERT_PTR(userdata);
2125         UnitFileList *item;
2126         _cleanup_(hashmap_freep) Hashmap *h = NULL;
2127         int r;
2128
2129         assert(message);
2130
2131         /* Anyone can call this method */
2132
2133         r = mac_selinux_access_check(message, "status", error);
2134         if (r < 0)
2135                 return r;
2136
2137         r = sd_bus_message_new_method_return(message, &reply);
2138         if (r < 0)
2139                 return r;
2140
2141         h = hashmap_new(&unit_file_list_hash_ops_free);
2142         if (!h)
2143                 return -ENOMEM;
2144
2145         r = unit_file_get_list(m->runtime_scope, NULL, h, states, patterns);
2146         if (r < 0)
2147                 return r;
2148
2149         r = sd_bus_message_open_container(reply, 'a', "(ss)");
2150         if (r < 0)
2151                 return r;
2152
2153         HASHMAP_FOREACH(item, h) {
2154
2155                 r = sd_bus_message_append(reply, "(ss)", item->path, unit_file_state_to_string(item->state));
2156                 if (r < 0)
2157                         return r;
2158         }
2159
2160         r = sd_bus_message_close_container(reply);
2161         if (r < 0)
2162                 return r;
2163
2164         return sd_bus_send(NULL, reply, NULL);
2165 }
2166
2167 static int method_list_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2168         return list_unit_files_by_patterns(message, userdata, error, NULL, NULL);
2169 }
2170
2171 static int method_list_unit_files_by_patterns(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2172         _cleanup_strv_free_ char **states = NULL;
2173         _cleanup_strv_free_ char **patterns = NULL;
2174         int r;
2175
2176         r = sd_bus_message_read_strv(message, &states);
2177         if (r < 0)
2178                 return r;
2179
2180         r = sd_bus_message_read_strv(message, &patterns);
2181         if (r < 0)
2182                 return r;
2183
2184         return list_unit_files_by_patterns(message, userdata, error, states, patterns);
2185 }
2186
2187 static int method_get_unit_file_state(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2188         Manager *m = ASSERT_PTR(userdata);
2189         const char *name;
2190         UnitFileState state;
2191         int r;
2192
2193         assert(message);
2194
2195         /* Anyone can call this method */
2196
2197         r = mac_selinux_access_check(message, "status", error);
2198         if (r < 0)
2199                 return r;
2200
2201         r = sd_bus_message_read(message, "s", &name);
2202         if (r < 0)
2203                 return r;
2204
2205         r = unit_file_get_state(m->runtime_scope, NULL, name, &state);
2206         if (r < 0)
2207                 return r;
2208
2209         return sd_bus_reply_method_return(message, "s", unit_file_state_to_string(state));
2210 }
2211
2212 static int method_get_default_target(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2213         _cleanup_free_ char *default_target = NULL;
2214         Manager *m = ASSERT_PTR(userdata);
2215         int r;
2216
2217         assert(message);
2218
2219         /* Anyone can call this method */
2220
2221         r = mac_selinux_access_check(message, "status", error);
2222         if (r < 0)
2223                 return r;
2224
2225         r = unit_file_get_default(m->runtime_scope, NULL, &default_target);
2226         if (r == -ERFKILL)
2227                 sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED, "Unit file is masked.");
2228         if (r < 0)
2229                 return r;
2230
2231         return sd_bus_reply_method_return(message, "s", default_target);
2232 }
2233
2234 static int send_unit_files_changed(sd_bus *bus, void *userdata) {
2235         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
2236         int r;
2237
2238         assert(bus);
2239
2240         r = sd_bus_message_new_signal(bus, &message,
2241                                       "/org/freedesktop/systemd1",
2242                                       "org.freedesktop.systemd1.Manager",
2243                                       "UnitFilesChanged");
2244         if (r < 0)
2245                 return r;
2246
2247         return sd_bus_send(bus, message, NULL);
2248 }
2249
2250 /* Create an error reply, using the error information from changes[]
2251  * if possible, and fall back to generating an error from error code c.
2252  * The error message only describes the first error.
2253  */
2254 static int install_error(
2255                 sd_bus_error *error,
2256                 int c,
2257                 InstallChange *changes,
2258                 size_t n_changes) {
2259
2260         CLEANUP_ARRAY(changes, n_changes, install_changes_free);
2261
2262         for (size_t i = 0; i < n_changes; i++)
2263
2264                 /* When making changes here, make sure to also change install_changes_dump() in install.c. */
2265
2266                 switch (changes[i].type) {
2267                 case 0 ... _INSTALL_CHANGE_TYPE_MAX: /* not errors */
2268                         break;
2269
2270                 case -EEXIST:
2271                         if (changes[i].source)
2272                                 return sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
2273                                                          "File %s already exists and is a symlink to %s.",
2274                                                          changes[i].path, changes[i].source);
2275                         return sd_bus_error_setf(error, BUS_ERROR_UNIT_EXISTS,
2276                                                  "File %s already exists.",
2277                                                  changes[i].path);
2278
2279                 case -ERFKILL:
2280                         return sd_bus_error_setf(error, BUS_ERROR_UNIT_MASKED,
2281                                                  "Unit file %s is masked.", changes[i].path);
2282
2283                 case -EADDRNOTAVAIL:
2284                         return sd_bus_error_setf(error, BUS_ERROR_UNIT_GENERATED,
2285                                                  "Unit %s is transient or generated.", changes[i].path);
2286
2287                 case -ETXTBSY:
2288                         return sd_bus_error_setf(error, BUS_ERROR_UNIT_BAD_PATH,
2289                                                  "File %s is under the systemd unit hierarchy already.", changes[i].path);
2290
2291                 case -EBADSLT:
2292                         return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2293                                                  "Invalid specifier in %s.", changes[i].path);
2294
2295                 case -EIDRM:
2296                         return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2297                                                  "Destination unit %s is a non-template unit.", changes[i].path);
2298
2299                 case -EUCLEAN:
2300                         return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2301                                                  "\"%s\" is not a valid unit name.",
2302                                                  changes[i].path);
2303
2304                 case -ELOOP:
2305                         return sd_bus_error_setf(error, BUS_ERROR_UNIT_LINKED,
2306                                                  "Refusing to operate on alias name or linked unit file: %s",
2307                                                  changes[i].path);
2308
2309                 case -EXDEV:
2310                         if (changes[i].source)
2311                                 return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2312                                                          "Cannot alias %s as %s.",
2313                                                          changes[i].source, changes[i].path);
2314                         return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2315                                                  "Invalid unit reference %s.", changes[i].path);
2316
2317                 case -ENOENT:
2318                         return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_UNIT,
2319                                                  "Unit file %s does not exist.", changes[i].path);
2320
2321                 case -EUNATCH:
2322                         return sd_bus_error_setf(error, BUS_ERROR_BAD_UNIT_SETTING,
2323                                                  "Cannot resolve specifiers in %s.", changes[i].path);
2324
2325                 default:
2326                         assert(changes[i].type < 0); /* other errors */
2327                         return sd_bus_error_set_errnof(error, changes[i].type, "File %s: %m", changes[i].path);
2328                 }
2329
2330         return c < 0 ? c : -EINVAL;
2331 }
2332
2333 static int reply_install_changes_and_free(
2334                 Manager *m,
2335                 sd_bus_message *message,
2336                 int carries_install_info,
2337                 InstallChange *changes,
2338                 size_t n_changes,
2339                 sd_bus_error *error) {
2340
2341         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2342         bool bad = false, good = false;
2343         int r;
2344
2345         CLEANUP_ARRAY(changes, n_changes, install_changes_free);
2346
2347         if (install_changes_have_modification(changes, n_changes)) {
2348                 r = bus_foreach_bus(m, NULL, send_unit_files_changed, NULL);
2349                 if (r < 0)
2350                         log_debug_errno(r, "Failed to send UnitFilesChanged signal: %m");
2351         }
2352
2353         r = sd_bus_message_new_method_return(message, &reply);
2354         if (r < 0)
2355                 return r;
2356
2357         if (carries_install_info >= 0) {
2358                 r = sd_bus_message_append(reply, "b", carries_install_info);
2359                 if (r < 0)
2360                         return r;
2361         }
2362
2363         r = sd_bus_message_open_container(reply, 'a', "(sss)");
2364         if (r < 0)
2365                 return r;
2366
2367         for (size_t i = 0; i < n_changes; i++) {
2368
2369                 if (changes[i].type < 0) {
2370                         bad = true;
2371                         continue;
2372                 }
2373
2374                 r = sd_bus_message_append(
2375                                 reply, "(sss)",
2376                                 install_change_type_to_string(changes[i].type),
2377                                 changes[i].path,
2378                                 changes[i].source);
2379                 if (r < 0)
2380                         return r;
2381
2382                 good = true;
2383         }
2384
2385         /* If there was a failed change, and no successful change, then return the first failure as proper
2386          * method call error. */
2387         if (bad && !good)
2388                 return install_error(error, 0, TAKE_PTR(changes), n_changes);
2389
2390         r = sd_bus_message_close_container(reply);
2391         if (r < 0)
2392                 return r;
2393
2394         return sd_bus_send(NULL, reply, NULL);
2395 }
2396
2397 static int method_enable_unit_files_generic(
2398                 sd_bus_message *message,
2399                 Manager *m,
2400                 int (*call)(RuntimeScope scope, UnitFileFlags flags, const char *root_dir, char *files[], InstallChange **changes, size_t *n_changes),
2401                 bool carries_install_info,
2402                 sd_bus_error *error) {
2403
2404         _cleanup_strv_free_ char **l = NULL;
2405         InstallChange *changes = NULL;
2406         size_t n_changes = 0;
2407         UnitFileFlags flags;
2408         int r;
2409
2410         assert(message);
2411         assert(m);
2412
2413         r = sd_bus_message_read_strv(message, &l);
2414         if (r < 0)
2415                 return r;
2416
2417         if (sd_bus_message_is_method_call(message, NULL, "EnableUnitFilesWithFlags")) {
2418                 uint64_t raw_flags;
2419
2420                 r = sd_bus_message_read(message, "t", &raw_flags);
2421                 if (r < 0)
2422                         return r;
2423                 if ((raw_flags & ~_UNIT_FILE_FLAGS_MASK_PUBLIC) != 0)
2424                         return -EINVAL;
2425                 flags = raw_flags;
2426         } else {
2427                 int runtime, force;
2428
2429                 r = sd_bus_message_read(message, "bb", &runtime, &force);
2430                 if (r < 0)
2431                         return r;
2432                 flags = unit_file_bools_to_flags(runtime, force);
2433         }
2434
2435         r = bus_verify_manage_unit_files_async(m, message, error);
2436         if (r < 0)
2437                 return r;
2438         if (r == 0)
2439                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2440
2441         r = call(m->runtime_scope, flags, NULL, l, &changes, &n_changes);
2442         if (r < 0)
2443                 return install_error(error, r, changes, n_changes);
2444
2445         return reply_install_changes_and_free(m, message, carries_install_info ? r : -1, changes, n_changes, error);
2446 }
2447
2448 static int method_enable_unit_files_with_flags(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2449         return method_enable_unit_files_generic(message, userdata, unit_file_enable, /* carries_install_info = */ true, error);
2450 }
2451
2452 static int method_enable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2453         return method_enable_unit_files_generic(message, userdata, unit_file_enable, /* carries_install_info = */ true, error);
2454 }
2455
2456 static int method_reenable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2457         return method_enable_unit_files_generic(message, userdata, unit_file_reenable, /* carries_install_info = */ true, error);
2458 }
2459
2460 static int method_link_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2461         return method_enable_unit_files_generic(message, userdata, unit_file_link, /* carries_install_info = */ false, error);
2462 }
2463
2464 static int unit_file_preset_without_mode(RuntimeScope scope, UnitFileFlags flags, const char *root_dir, char **files, InstallChange **changes, size_t *n_changes) {
2465         return unit_file_preset(scope, flags, root_dir, files, UNIT_FILE_PRESET_FULL, changes, n_changes);
2466 }
2467
2468 static int method_preset_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2469         return method_enable_unit_files_generic(message, userdata, unit_file_preset_without_mode, /* carries_install_info = */ true, error);
2470 }
2471
2472 static int method_mask_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2473         return method_enable_unit_files_generic(message, userdata, unit_file_mask, /* carries_install_info = */ false, error);
2474 }
2475
2476 static int method_preset_unit_files_with_mode(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2477
2478         _cleanup_strv_free_ char **l = NULL;
2479         InstallChange *changes = NULL;
2480         size_t n_changes = 0;
2481         Manager *m = ASSERT_PTR(userdata);
2482         UnitFilePresetMode preset_mode;
2483         int runtime, force, r;
2484         UnitFileFlags flags;
2485         const char *mode;
2486
2487         assert(message);
2488
2489         r = sd_bus_message_read_strv(message, &l);
2490         if (r < 0)
2491                 return r;
2492
2493         r = sd_bus_message_read(message, "sbb", &mode, &runtime, &force);
2494         if (r < 0)
2495                 return r;
2496
2497         flags = unit_file_bools_to_flags(runtime, force);
2498
2499         if (isempty(mode))
2500                 preset_mode = UNIT_FILE_PRESET_FULL;
2501         else {
2502                 preset_mode = unit_file_preset_mode_from_string(mode);
2503                 if (preset_mode < 0)
2504                         return -EINVAL;
2505         }
2506
2507         r = bus_verify_manage_unit_files_async(m, message, error);
2508         if (r < 0)
2509                 return r;
2510         if (r == 0)
2511                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2512
2513         r = unit_file_preset(m->runtime_scope, flags, NULL, l, preset_mode, &changes, &n_changes);
2514         if (r < 0)
2515                 return install_error(error, r, changes, n_changes);
2516
2517         return reply_install_changes_and_free(m, message, r, changes, n_changes, error);
2518 }
2519
2520 static int method_disable_unit_files_generic(
2521                 sd_bus_message *message,
2522                 Manager *m,
2523                 int (*call)(RuntimeScope scope, UnitFileFlags flags, const char *root_dir, char *files[], InstallChange **changes, size_t *n_changes),
2524                 bool carries_install_info,
2525                 sd_bus_error *error) {
2526
2527         _cleanup_strv_free_ char **l = NULL;
2528         InstallChange *changes = NULL;
2529         UnitFileFlags flags;
2530         size_t n_changes = 0;
2531         int r;
2532
2533         assert(message);
2534         assert(m);
2535
2536         r = sd_bus_message_read_strv(message, &l);
2537         if (r < 0)
2538                 return r;
2539
2540         if (sd_bus_message_is_method_call(message, NULL, "DisableUnitFilesWithFlags") ||
2541             sd_bus_message_is_method_call(message, NULL, "DisableUnitFilesWithFlagsAndInstallInfo")) {
2542                 uint64_t raw_flags;
2543
2544                 r = sd_bus_message_read(message, "t", &raw_flags);
2545                 if (r < 0)
2546                         return r;
2547                 if ((raw_flags & ~_UNIT_FILE_FLAGS_MASK_PUBLIC) != 0 ||
2548                                 FLAGS_SET(raw_flags, UNIT_FILE_FORCE))
2549                         return -EINVAL;
2550                 flags = raw_flags;
2551         } else {
2552                 int runtime;
2553
2554                 r = sd_bus_message_read(message, "b", &runtime);
2555                 if (r < 0)
2556                         return r;
2557                 flags = unit_file_bools_to_flags(runtime, false);
2558         }
2559
2560         r = bus_verify_manage_unit_files_async(m, message, error);
2561         if (r < 0)
2562                 return r;
2563         if (r == 0)
2564                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2565
2566         r = call(m->runtime_scope, flags, NULL, l, &changes, &n_changes);
2567         if (r < 0)
2568                 return install_error(error, r, changes, n_changes);
2569
2570         return reply_install_changes_and_free(m, message, carries_install_info ? r : -1, changes, n_changes, error);
2571 }
2572
2573 static int method_disable_unit_files_with_flags(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2574         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ false, error);
2575 }
2576
2577 static int method_disable_unit_files_with_flags_and_install_info(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2578         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ true, error);
2579 }
2580
2581 static int method_disable_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2582         return method_disable_unit_files_generic(message, userdata, unit_file_disable, /* carries_install_info = */ false, error);
2583 }
2584
2585 static int method_unmask_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2586         return method_disable_unit_files_generic(message, userdata, unit_file_unmask, /* carries_install_info = */ false, error);
2587 }
2588
2589 static int method_revert_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2590         _cleanup_strv_free_ char **l = NULL;
2591         InstallChange *changes = NULL;
2592         size_t n_changes = 0;
2593         Manager *m = ASSERT_PTR(userdata);
2594         int r;
2595
2596         assert(message);
2597
2598         r = sd_bus_message_read_strv(message, &l);
2599         if (r < 0)
2600                 return r;
2601
2602         r = bus_verify_manage_unit_files_async(m, message, error);
2603         if (r < 0)
2604                 return r;
2605         if (r == 0)
2606                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2607
2608         r = unit_file_revert(m->runtime_scope, NULL, l, &changes, &n_changes);
2609         if (r < 0)
2610                 return install_error(error, r, changes, n_changes);
2611
2612         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2613 }
2614
2615 static int method_set_default_target(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2616         InstallChange *changes = NULL;
2617         size_t n_changes = 0;
2618         Manager *m = ASSERT_PTR(userdata);
2619         const char *name;
2620         int force, r;
2621
2622         assert(message);
2623
2624         r = mac_selinux_access_check(message, "enable", error);
2625         if (r < 0)
2626                 return r;
2627
2628         r = sd_bus_message_read(message, "sb", &name, &force);
2629         if (r < 0)
2630                 return r;
2631
2632         r = bus_verify_manage_unit_files_async(m, message, error);
2633         if (r < 0)
2634                 return r;
2635         if (r == 0)
2636                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2637
2638         r = unit_file_set_default(m->runtime_scope, force ? UNIT_FILE_FORCE : 0, NULL, name, &changes, &n_changes);
2639         if (r < 0)
2640                 return install_error(error, r, changes, n_changes);
2641
2642         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2643 }
2644
2645 static int method_preset_all_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2646         InstallChange *changes = NULL;
2647         size_t n_changes = 0;
2648         Manager *m = ASSERT_PTR(userdata);
2649         UnitFilePresetMode preset_mode;
2650         const char *mode;
2651         UnitFileFlags flags;
2652         int force, runtime, r;
2653
2654         assert(message);
2655
2656         r = mac_selinux_access_check(message, "enable", error);
2657         if (r < 0)
2658                 return r;
2659
2660         r = sd_bus_message_read(message, "sbb", &mode, &runtime, &force);
2661         if (r < 0)
2662                 return r;
2663
2664         flags = unit_file_bools_to_flags(runtime, force);
2665
2666         if (isempty(mode))
2667                 preset_mode = UNIT_FILE_PRESET_FULL;
2668         else {
2669                 preset_mode = unit_file_preset_mode_from_string(mode);
2670                 if (preset_mode < 0)
2671                         return -EINVAL;
2672         }
2673
2674         r = bus_verify_manage_unit_files_async(m, message, error);
2675         if (r < 0)
2676                 return r;
2677         if (r == 0)
2678                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2679
2680         r = unit_file_preset_all(m->runtime_scope, flags, NULL, preset_mode, &changes, &n_changes);
2681         if (r < 0)
2682                 return install_error(error, r, changes, n_changes);
2683
2684         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2685 }
2686
2687 static int method_add_dependency_unit_files(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2688         _cleanup_strv_free_ char **l = NULL;
2689         Manager *m = ASSERT_PTR(userdata);
2690         InstallChange *changes = NULL;
2691         size_t n_changes = 0;
2692         int runtime, force, r;
2693         char *target, *type;
2694         UnitDependency dep;
2695         UnitFileFlags flags;
2696
2697         assert(message);
2698
2699         r = bus_verify_manage_unit_files_async(m, message, error);
2700         if (r < 0)
2701                 return r;
2702         if (r == 0)
2703                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2704
2705         r = sd_bus_message_read_strv(message, &l);
2706         if (r < 0)
2707                 return r;
2708
2709         r = sd_bus_message_read(message, "ssbb", &target, &type, &runtime, &force);
2710         if (r < 0)
2711                 return r;
2712
2713         flags = unit_file_bools_to_flags(runtime, force);
2714
2715         dep = unit_dependency_from_string(type);
2716         if (dep < 0)
2717                 return -EINVAL;
2718
2719         r = unit_file_add_dependency(m->runtime_scope, flags, NULL, l, target, dep, &changes, &n_changes);
2720         if (r < 0)
2721                 return install_error(error, r, changes, n_changes);
2722
2723         return reply_install_changes_and_free(m, message, -1, changes, n_changes, error);
2724 }
2725
2726 static int method_get_unit_file_links(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2727         _cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
2728         Manager *m = ASSERT_PTR(userdata);
2729         InstallChange *changes = NULL;
2730         size_t n_changes = 0, i;
2731         const char *name;
2732         int runtime, r;
2733
2734         CLEANUP_ARRAY(changes, n_changes, install_changes_free);
2735
2736         r = sd_bus_message_read(message, "sb", &name, &runtime);
2737         if (r < 0)
2738                 return r;
2739
2740         r = sd_bus_message_new_method_return(message, &reply);
2741         if (r < 0)
2742                 return r;
2743
2744         r = sd_bus_message_open_container(reply, SD_BUS_TYPE_ARRAY, "s");
2745         if (r < 0)
2746                 return r;
2747
2748         r = unit_file_disable(m->runtime_scope,
2749                               UNIT_FILE_DRY_RUN | (runtime ? UNIT_FILE_RUNTIME : 0),
2750                               NULL, STRV_MAKE(name), &changes, &n_changes);
2751         if (r < 0)
2752                 return log_error_errno(r, "Failed to get file links for %s: %m", name);
2753
2754         for (i = 0; i < n_changes; i++)
2755                 if (changes[i].type == INSTALL_CHANGE_UNLINK) {
2756                         r = sd_bus_message_append(reply, "s", changes[i].path);
2757                         if (r < 0)
2758                                 return r;
2759                 }
2760
2761         r = sd_bus_message_close_container(reply);
2762         if (r < 0)
2763                 return r;
2764
2765         return sd_bus_send(NULL, reply, NULL);
2766 }
2767
2768 static int method_get_job_waiting(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2769         Manager *m = ASSERT_PTR(userdata);
2770         uint32_t id;
2771         Job *j;
2772         int r;
2773
2774         assert(message);
2775
2776         r = sd_bus_message_read(message, "u", &id);
2777         if (r < 0)
2778                 return r;
2779
2780         j = manager_get_job(m, id);
2781         if (!j)
2782                 return sd_bus_error_setf(error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
2783
2784         return bus_job_method_get_waiting_jobs(message, j, error);
2785 }
2786
2787 static int method_abandon_scope(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2788         Manager *m = ASSERT_PTR(userdata);
2789         const char *name;
2790         Unit *u;
2791         int r;
2792
2793         assert(message);
2794
2795         r = sd_bus_message_read(message, "s", &name);
2796         if (r < 0)
2797                 return r;
2798
2799         r = bus_get_unit_by_name(m, message, name, &u, error);
2800         if (r < 0)
2801                 return r;
2802
2803         if (u->type != UNIT_SCOPE)
2804                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
2805                                          "Unit '%s' is not a scope unit, refusing.", name);
2806
2807         return bus_scope_method_abandon(message, u, error);
2808 }
2809
2810 static int method_set_show_status(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2811         Manager *m = ASSERT_PTR(userdata);
2812         ShowStatus mode = _SHOW_STATUS_INVALID;
2813         const char *t;
2814         int r;
2815
2816         assert(message);
2817
2818         r = mac_selinux_access_check(message, "reload", error);
2819         if (r < 0)
2820                 return r;
2821
2822         r = bus_verify_set_environment_async(m, message, error);
2823         if (r < 0)
2824                 return r;
2825         if (r == 0)
2826                 return 1; /* No authorization for now, but the async polkit stuff will call us again when it has it */
2827
2828         r = sd_bus_message_read(message, "s", &t);
2829         if (r < 0)
2830                 return r;
2831
2832         if (!isempty(t)) {
2833                 mode = show_status_from_string(t);
2834                 if (mode < 0)
2835                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS,
2836                                                  "Invalid show status '%s'", t);
2837         }
2838
2839         manager_override_show_status(m, mode, "bus");
2840
2841         return sd_bus_reply_method_return(message, NULL);
2842 }
2843
2844 static int method_dump_unit_descriptor_store(sd_bus_message *message, void *userdata, sd_bus_error *error) {
2845         return method_generic_unit_operation(message, userdata, error, bus_service_method_dump_file_descriptor_store, 0);
2846 }
2847
2848 const sd_bus_vtable bus_manager_vtable[] = {
2849         SD_BUS_VTABLE_START(0),
2850
2851         SD_BUS_PROPERTY("Version", "s", property_get_version, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2852         SD_BUS_PROPERTY("Features", "s", property_get_features, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2853         SD_BUS_PROPERTY("Virtualization", "s", property_get_virtualization, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2854         SD_BUS_PROPERTY("Architecture", "s", property_get_architecture, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2855         SD_BUS_PROPERTY("Tainted", "s", property_get_tainted, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2856         BUS_PROPERTY_DUAL_TIMESTAMP("FirmwareTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_FIRMWARE]), SD_BUS_VTABLE_PROPERTY_CONST),
2857         BUS_PROPERTY_DUAL_TIMESTAMP("LoaderTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_LOADER]), SD_BUS_VTABLE_PROPERTY_CONST),
2858         BUS_PROPERTY_DUAL_TIMESTAMP("KernelTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_KERNEL]), SD_BUS_VTABLE_PROPERTY_CONST),
2859         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD]), SD_BUS_VTABLE_PROPERTY_CONST),
2860         BUS_PROPERTY_DUAL_TIMESTAMP("UserspaceTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_USERSPACE]), SD_BUS_VTABLE_PROPERTY_CONST),
2861         BUS_PROPERTY_DUAL_TIMESTAMP("FinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2862         BUS_PROPERTY_DUAL_TIMESTAMP("SecurityStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_SECURITY_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2863         BUS_PROPERTY_DUAL_TIMESTAMP("SecurityFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_SECURITY_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2864         BUS_PROPERTY_DUAL_TIMESTAMP("GeneratorsStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_GENERATORS_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2865         BUS_PROPERTY_DUAL_TIMESTAMP("GeneratorsFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_GENERATORS_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2866         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2867         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2868         BUS_PROPERTY_DUAL_TIMESTAMP("UnitsLoadTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_UNITS_LOAD]), SD_BUS_VTABLE_PROPERTY_CONST),
2869         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDSecurityStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_SECURITY_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2870         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDSecurityFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_SECURITY_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2871         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDGeneratorsStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_GENERATORS_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2872         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDGeneratorsFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_GENERATORS_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2873         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDUnitsLoadStartTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_START]), SD_BUS_VTABLE_PROPERTY_CONST),
2874         BUS_PROPERTY_DUAL_TIMESTAMP("InitRDUnitsLoadFinishTimestamp", offsetof(Manager, timestamps[MANAGER_TIMESTAMP_INITRD_UNITS_LOAD_FINISH]), SD_BUS_VTABLE_PROPERTY_CONST),
2875         SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", bus_property_get_log_level, property_set_log_level, 0, 0),
2876         SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", bus_property_get_log_target, property_set_log_target, 0, 0),
2877         SD_BUS_PROPERTY("NNames", "u", property_get_hashmap_size, offsetof(Manager, units), 0),
2878         SD_BUS_PROPERTY("NFailedUnits", "u", property_get_set_size, offsetof(Manager, failed_units), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
2879         SD_BUS_PROPERTY("NJobs", "u", property_get_hashmap_size, offsetof(Manager, jobs), 0),
2880         SD_BUS_PROPERTY("NInstalledJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_installed_jobs), 0),
2881         SD_BUS_PROPERTY("NFailedJobs", "u", bus_property_get_unsigned, offsetof(Manager, n_failed_jobs), 0),
2882         SD_BUS_PROPERTY("Progress", "d", property_get_progress, 0, 0),
2883         SD_BUS_PROPERTY("Environment", "as", property_get_environment, 0, 0),
2884         SD_BUS_PROPERTY("ConfirmSpawn", "b", bus_property_get_bool, offsetof(Manager, confirm_spawn), SD_BUS_VTABLE_PROPERTY_CONST),
2885         SD_BUS_PROPERTY("ShowStatus", "b", property_get_show_status, 0, 0),
2886         SD_BUS_PROPERTY("UnitPath", "as", NULL, offsetof(Manager, lookup_paths.search_path), SD_BUS_VTABLE_PROPERTY_CONST),
2887         SD_BUS_PROPERTY("DefaultStandardOutput", "s", bus_property_get_exec_output, offsetof(Manager, default_std_output), SD_BUS_VTABLE_PROPERTY_CONST),
2888         SD_BUS_PROPERTY("DefaultStandardError", "s", bus_property_get_exec_output, offsetof(Manager, default_std_error), SD_BUS_VTABLE_PROPERTY_CONST),
2889         SD_BUS_PROPERTY("WatchdogDevice", "s", property_get_watchdog_device, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2890         SD_BUS_PROPERTY("WatchdogLastPingTimestamp", "t", property_get_watchdog_last_ping_realtime, 0, 0),
2891         SD_BUS_PROPERTY("WatchdogLastPingTimestampMonotonic", "t", property_get_watchdog_last_ping_monotonic, 0, 0),
2892         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogUSec", "t", property_get_runtime_watchdog, property_set_runtime_watchdog, 0, 0),
2893         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogPreUSec", "t", property_get_pretimeout_watchdog, property_set_pretimeout_watchdog, 0, 0),
2894         SD_BUS_WRITABLE_PROPERTY("RuntimeWatchdogPreGovernor", "s", property_get_pretimeout_watchdog_governor, property_set_pretimeout_watchdog_governor, 0, 0),
2895         SD_BUS_WRITABLE_PROPERTY("RebootWatchdogUSec", "t", property_get_reboot_watchdog, property_set_reboot_watchdog, 0, 0),
2896         /* The following item is an obsolete alias */
2897         SD_BUS_WRITABLE_PROPERTY("ShutdownWatchdogUSec", "t", property_get_reboot_watchdog, property_set_reboot_watchdog, 0, SD_BUS_VTABLE_HIDDEN),
2898         SD_BUS_WRITABLE_PROPERTY("KExecWatchdogUSec", "t", property_get_kexec_watchdog, property_set_kexec_watchdog, 0, 0),
2899         SD_BUS_WRITABLE_PROPERTY("ServiceWatchdogs", "b", bus_property_get_bool, bus_property_set_bool, offsetof(Manager, service_watchdogs), 0),
2900         SD_BUS_PROPERTY("ControlGroup", "s", NULL, offsetof(Manager, cgroup_root), 0),
2901         SD_BUS_PROPERTY("SystemState", "s", property_get_system_state, 0, 0),
2902         SD_BUS_PROPERTY("ExitCode", "y", bus_property_get_unsigned, offsetof(Manager, return_value), 0),
2903         SD_BUS_PROPERTY("DefaultTimerAccuracyUSec", "t", bus_property_get_usec, offsetof(Manager, default_timer_accuracy_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2904         SD_BUS_PROPERTY("DefaultTimeoutStartUSec", "t", bus_property_get_usec, offsetof(Manager, default_timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2905         SD_BUS_PROPERTY("DefaultTimeoutStopUSec", "t", bus_property_get_usec, offsetof(Manager, default_timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2906         SD_BUS_PROPERTY("DefaultTimeoutAbortUSec", "t", property_get_default_timeout_abort_usec, 0, 0),
2907         SD_BUS_PROPERTY("DefaultDeviceTimeoutUSec", "t", bus_property_get_usec, offsetof(Manager, default_device_timeout_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2908         SD_BUS_PROPERTY("DefaultRestartUSec", "t", bus_property_get_usec, offsetof(Manager, default_restart_usec), SD_BUS_VTABLE_PROPERTY_CONST),
2909         SD_BUS_PROPERTY("DefaultStartLimitIntervalUSec", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST),
2910         /* The following two items are obsolete alias */
2911         SD_BUS_PROPERTY("DefaultStartLimitIntervalSec", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
2912         SD_BUS_PROPERTY("DefaultStartLimitInterval", "t", bus_property_get_usec, offsetof(Manager, default_start_limit_interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
2913         SD_BUS_PROPERTY("DefaultStartLimitBurst", "u", bus_property_get_unsigned, offsetof(Manager, default_start_limit_burst), SD_BUS_VTABLE_PROPERTY_CONST),
2914         SD_BUS_PROPERTY("DefaultCPUAccounting", "b", bus_property_get_bool, offsetof(Manager, default_cpu_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2915         SD_BUS_PROPERTY("DefaultBlockIOAccounting", "b", bus_property_get_bool, offsetof(Manager, default_blockio_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2916         SD_BUS_PROPERTY("DefaultMemoryAccounting", "b", bus_property_get_bool, offsetof(Manager, default_memory_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2917         SD_BUS_PROPERTY("DefaultTasksAccounting", "b", bus_property_get_bool, offsetof(Manager, default_tasks_accounting), SD_BUS_VTABLE_PROPERTY_CONST),
2918         SD_BUS_PROPERTY("DefaultLimitCPU", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
2919         SD_BUS_PROPERTY("DefaultLimitCPUSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CPU]), SD_BUS_VTABLE_PROPERTY_CONST),
2920         SD_BUS_PROPERTY("DefaultLimitFSIZE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
2921         SD_BUS_PROPERTY("DefaultLimitFSIZESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_FSIZE]), SD_BUS_VTABLE_PROPERTY_CONST),
2922         SD_BUS_PROPERTY("DefaultLimitDATA", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
2923         SD_BUS_PROPERTY("DefaultLimitDATASoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_DATA]), SD_BUS_VTABLE_PROPERTY_CONST),
2924         SD_BUS_PROPERTY("DefaultLimitSTACK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
2925         SD_BUS_PROPERTY("DefaultLimitSTACKSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_STACK]), SD_BUS_VTABLE_PROPERTY_CONST),
2926         SD_BUS_PROPERTY("DefaultLimitCORE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
2927         SD_BUS_PROPERTY("DefaultLimitCORESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_CORE]), SD_BUS_VTABLE_PROPERTY_CONST),
2928         SD_BUS_PROPERTY("DefaultLimitRSS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
2929         SD_BUS_PROPERTY("DefaultLimitRSSSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RSS]), SD_BUS_VTABLE_PROPERTY_CONST),
2930         SD_BUS_PROPERTY("DefaultLimitNOFILE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
2931         SD_BUS_PROPERTY("DefaultLimitNOFILESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NOFILE]), SD_BUS_VTABLE_PROPERTY_CONST),
2932         SD_BUS_PROPERTY("DefaultLimitAS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
2933         SD_BUS_PROPERTY("DefaultLimitASSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_AS]), SD_BUS_VTABLE_PROPERTY_CONST),
2934         SD_BUS_PROPERTY("DefaultLimitNPROC", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
2935         SD_BUS_PROPERTY("DefaultLimitNPROCSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NPROC]), SD_BUS_VTABLE_PROPERTY_CONST),
2936         SD_BUS_PROPERTY("DefaultLimitMEMLOCK", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
2937         SD_BUS_PROPERTY("DefaultLimitMEMLOCKSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MEMLOCK]), SD_BUS_VTABLE_PROPERTY_CONST),
2938         SD_BUS_PROPERTY("DefaultLimitLOCKS", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
2939         SD_BUS_PROPERTY("DefaultLimitLOCKSSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_LOCKS]), SD_BUS_VTABLE_PROPERTY_CONST),
2940         SD_BUS_PROPERTY("DefaultLimitSIGPENDING", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
2941         SD_BUS_PROPERTY("DefaultLimitSIGPENDINGSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_SIGPENDING]), SD_BUS_VTABLE_PROPERTY_CONST),
2942         SD_BUS_PROPERTY("DefaultLimitMSGQUEUE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
2943         SD_BUS_PROPERTY("DefaultLimitMSGQUEUESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_MSGQUEUE]), SD_BUS_VTABLE_PROPERTY_CONST),
2944         SD_BUS_PROPERTY("DefaultLimitNICE", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
2945         SD_BUS_PROPERTY("DefaultLimitNICESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_NICE]), SD_BUS_VTABLE_PROPERTY_CONST),
2946         SD_BUS_PROPERTY("DefaultLimitRTPRIO", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
2947         SD_BUS_PROPERTY("DefaultLimitRTPRIOSoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTPRIO]), SD_BUS_VTABLE_PROPERTY_CONST),
2948         SD_BUS_PROPERTY("DefaultLimitRTTIME", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
2949         SD_BUS_PROPERTY("DefaultLimitRTTIMESoft", "t", bus_property_get_rlimit, offsetof(Manager, rlimit[RLIMIT_RTTIME]), SD_BUS_VTABLE_PROPERTY_CONST),
2950         SD_BUS_PROPERTY("DefaultTasksMax", "t", bus_property_get_tasks_max, offsetof(Manager, default_tasks_max), 0),
2951         SD_BUS_PROPERTY("DefaultMemoryPressureThresholdUSec", "t", bus_property_get_usec, offsetof(Manager, default_memory_pressure_threshold_usec), 0),
2952         SD_BUS_PROPERTY("DefaultMemoryPressureWatch", "s", bus_property_get_cgroup_pressure_watch, offsetof(Manager, default_memory_pressure_watch), 0),
2953         SD_BUS_PROPERTY("TimerSlackNSec", "t", property_get_timer_slack_nsec, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2954         SD_BUS_PROPERTY("DefaultOOMPolicy", "s", bus_property_get_oom_policy, offsetof(Manager, default_oom_policy), SD_BUS_VTABLE_PROPERTY_CONST),
2955         SD_BUS_PROPERTY("DefaultOOMScoreAdjust", "i", property_get_oom_score_adjust, 0, SD_BUS_VTABLE_PROPERTY_CONST),
2956         SD_BUS_PROPERTY("CtrlAltDelBurstAction", "s", bus_property_get_emergency_action, offsetof(Manager, cad_burst_action), SD_BUS_VTABLE_PROPERTY_CONST),
2957
2958         SD_BUS_METHOD_WITH_ARGS("GetUnit",
2959                                 SD_BUS_ARGS("s", name),
2960                                 SD_BUS_RESULT("o", unit),
2961                                 method_get_unit,
2962                                 SD_BUS_VTABLE_UNPRIVILEGED),
2963         SD_BUS_METHOD_WITH_ARGS("GetUnitByPID",
2964                                 SD_BUS_ARGS("u", pid),
2965                                 SD_BUS_RESULT("o", unit),
2966                                 method_get_unit_by_pid,
2967                                 SD_BUS_VTABLE_UNPRIVILEGED),
2968         SD_BUS_METHOD_WITH_ARGS("GetUnitByInvocationID",
2969                                 SD_BUS_ARGS("ay", invocation_id),
2970                                 SD_BUS_RESULT("o", unit),
2971                                 method_get_unit_by_invocation_id,
2972                                 SD_BUS_VTABLE_UNPRIVILEGED),
2973         SD_BUS_METHOD_WITH_ARGS("GetUnitByControlGroup",
2974                                 SD_BUS_ARGS("s", cgroup),
2975                                 SD_BUS_RESULT("o", unit),
2976                                 method_get_unit_by_control_group,
2977                                 SD_BUS_VTABLE_UNPRIVILEGED),
2978         SD_BUS_METHOD_WITH_ARGS("GetUnitByPIDFD",
2979                                 SD_BUS_ARGS("h", pidfd),
2980                                 SD_BUS_RESULT("o", unit, "s", unit_id, "ay", invocation_id),
2981                                 method_get_unit_by_pidfd,
2982                                 SD_BUS_VTABLE_UNPRIVILEGED),
2983         SD_BUS_METHOD_WITH_ARGS("LoadUnit",
2984                                 SD_BUS_ARGS("s", name),
2985                                 SD_BUS_RESULT("o", unit),
2986                                 method_load_unit,
2987                                 SD_BUS_VTABLE_UNPRIVILEGED),
2988         SD_BUS_METHOD_WITH_ARGS("StartUnit",
2989                                 SD_BUS_ARGS("s", name, "s", mode),
2990                                 SD_BUS_RESULT("o", job),
2991                                 method_start_unit,
2992                                 SD_BUS_VTABLE_UNPRIVILEGED),
2993         SD_BUS_METHOD_WITH_ARGS("StartUnitWithFlags",
2994                                 SD_BUS_ARGS("s", name, "s", mode, "t", flags),
2995                                 SD_BUS_RESULT("o", job),
2996                                 method_start_unit,
2997                                 SD_BUS_VTABLE_UNPRIVILEGED),
2998         SD_BUS_METHOD_WITH_ARGS("StartUnitReplace",
2999                                 SD_BUS_ARGS("s", old_unit, "s", new_unit, "s", mode),
3000                                 SD_BUS_RESULT("o", job),
3001                                 method_start_unit_replace,
3002                                 SD_BUS_VTABLE_UNPRIVILEGED),
3003         SD_BUS_METHOD_WITH_ARGS("StopUnit",
3004                                 SD_BUS_ARGS("s", name, "s", mode),
3005                                 SD_BUS_RESULT("o", job),
3006                                 method_stop_unit,
3007                                 SD_BUS_VTABLE_UNPRIVILEGED),
3008         SD_BUS_METHOD_WITH_ARGS("ReloadUnit",
3009                                 SD_BUS_ARGS("s", name, "s", mode),
3010                                 SD_BUS_RESULT("o", job),
3011                                 method_reload_unit,
3012                                 SD_BUS_VTABLE_UNPRIVILEGED),
3013         SD_BUS_METHOD_WITH_ARGS("RestartUnit",
3014                                 SD_BUS_ARGS("s", name, "s", mode),
3015                                 SD_BUS_RESULT("o", job),
3016                                 method_restart_unit,
3017                                 SD_BUS_VTABLE_UNPRIVILEGED),
3018         SD_BUS_METHOD_WITH_ARGS("TryRestartUnit",
3019                                 SD_BUS_ARGS("s", name, "s", mode),
3020                                 SD_BUS_RESULT("o", job),
3021                                 method_try_restart_unit,
3022                                 SD_BUS_VTABLE_UNPRIVILEGED),
3023         SD_BUS_METHOD_WITH_ARGS("ReloadOrRestartUnit",
3024                                 SD_BUS_ARGS("s", name, "s", mode),
3025                                 SD_BUS_RESULT("o", job),
3026                                 method_reload_or_restart_unit,
3027                                 SD_BUS_VTABLE_UNPRIVILEGED),
3028         SD_BUS_METHOD_WITH_ARGS("ReloadOrTryRestartUnit",
3029                                 SD_BUS_ARGS("s", name, "s", mode),
3030                                 SD_BUS_RESULT("o", job),
3031                                 method_reload_or_try_restart_unit,
3032                                 SD_BUS_VTABLE_UNPRIVILEGED),
3033         SD_BUS_METHOD_WITH_ARGS("EnqueueUnitJob",
3034                                 SD_BUS_ARGS("s", name, "s", job_type, "s", job_mode),
3035                                 SD_BUS_RESULT("u", job_id, "o", job_path, "s", unit_id, "o", unit_path, "s", job_type, "a(uosos)", affected_jobs),
3036                                 method_enqueue_unit_job,
3037                                 SD_BUS_VTABLE_UNPRIVILEGED),
3038         SD_BUS_METHOD_WITH_ARGS("KillUnit",
3039                                 SD_BUS_ARGS("s", name, "s", whom, "i", signal),
3040                                 SD_BUS_NO_RESULT,
3041                                 method_kill_unit,
3042                                 SD_BUS_VTABLE_UNPRIVILEGED),
3043         SD_BUS_METHOD_WITH_ARGS("QueueSignalUnit",
3044                                 SD_BUS_ARGS("s", name, "s", whom, "i", signal, "i", value),
3045                                 SD_BUS_NO_RESULT,
3046                                 method_kill_unit,
3047                                 SD_BUS_VTABLE_UNPRIVILEGED),
3048         SD_BUS_METHOD_WITH_ARGS("CleanUnit",
3049                                 SD_BUS_ARGS("s", name, "as", mask),
3050                                 SD_BUS_NO_RESULT,
3051                                 method_clean_unit,
3052                                 SD_BUS_VTABLE_UNPRIVILEGED),
3053         SD_BUS_METHOD_WITH_ARGS("FreezeUnit",
3054                                 SD_BUS_ARGS("s", name),
3055                                 SD_BUS_NO_RESULT,
3056                                 method_freeze_unit,
3057                                 SD_BUS_VTABLE_UNPRIVILEGED),
3058         SD_BUS_METHOD_WITH_ARGS("ThawUnit",
3059                                 SD_BUS_ARGS("s", name),
3060                                 SD_BUS_NO_RESULT,
3061                                 method_thaw_unit,
3062                                 SD_BUS_VTABLE_UNPRIVILEGED),
3063         SD_BUS_METHOD_WITH_ARGS("ResetFailedUnit",
3064                                 SD_BUS_ARGS("s", name),
3065                                 SD_BUS_NO_RESULT,
3066                                 method_reset_failed_unit,
3067                                 SD_BUS_VTABLE_UNPRIVILEGED),
3068         SD_BUS_METHOD_WITH_ARGS("SetUnitProperties",
3069                                 SD_BUS_ARGS("s", name, "b", runtime, "a(sv)", properties),
3070                                 SD_BUS_NO_RESULT,
3071                                 method_set_unit_properties,
3072                                 SD_BUS_VTABLE_UNPRIVILEGED),
3073         SD_BUS_METHOD_WITH_ARGS("BindMountUnit",
3074                                 SD_BUS_ARGS("s", name, "s", source, "s", destination, "b", read_only, "b", mkdir),
3075                                 SD_BUS_NO_RESULT,
3076                                 method_bind_mount_unit,
3077                                 SD_BUS_VTABLE_UNPRIVILEGED),
3078         SD_BUS_METHOD_WITH_ARGS("MountImageUnit",
3079                                 SD_BUS_ARGS("s", name, "s", source, "s", destination, "b", read_only, "b", mkdir, "a(ss)", options),
3080                                 SD_BUS_NO_RESULT,
3081                                 method_mount_image_unit,
3082                                 SD_BUS_VTABLE_UNPRIVILEGED),
3083         SD_BUS_METHOD_WITH_ARGS("RefUnit",
3084                                 SD_BUS_ARGS("s", name),
3085                                 SD_BUS_NO_RESULT,
3086                                 method_ref_unit,
3087                                 SD_BUS_VTABLE_UNPRIVILEGED),
3088         SD_BUS_METHOD_WITH_ARGS("UnrefUnit",
3089                                 SD_BUS_ARGS("s", name),
3090                                 SD_BUS_NO_RESULT,
3091                                 method_unref_unit,
3092                                 SD_BUS_VTABLE_UNPRIVILEGED),
3093         SD_BUS_METHOD_WITH_ARGS("StartTransientUnit",
3094                                 SD_BUS_ARGS("s", name, "s", mode, "a(sv)", properties, "a(sa(sv))", aux),
3095                                 SD_BUS_RESULT("o", job),
3096                                 method_start_transient_unit,
3097                                 SD_BUS_VTABLE_UNPRIVILEGED),
3098         SD_BUS_METHOD_WITH_ARGS("GetUnitProcesses",
3099                                 SD_BUS_ARGS("s", name),
3100                                 SD_BUS_RESULT("a(sus)", processes),
3101                                 method_get_unit_processes,
3102                                 SD_BUS_VTABLE_UNPRIVILEGED),
3103         SD_BUS_METHOD_WITH_ARGS("AttachProcessesToUnit",
3104                                 SD_BUS_ARGS("s", unit_name, "s", subcgroup, "au", pids),
3105                                 SD_BUS_NO_RESULT,
3106                                 method_attach_processes_to_unit,
3107                                 SD_BUS_VTABLE_UNPRIVILEGED),
3108         SD_BUS_METHOD_WITH_ARGS("AbandonScope",
3109                                 SD_BUS_ARGS("s", name),
3110                                 SD_BUS_NO_RESULT,
3111                                 method_abandon_scope,
3112                                 SD_BUS_VTABLE_UNPRIVILEGED),
3113         SD_BUS_METHOD_WITH_ARGS("GetJob",
3114                                 SD_BUS_ARGS("u", id),
3115                                 SD_BUS_RESULT("o", job),
3116                                 method_get_job,
3117                                 SD_BUS_VTABLE_UNPRIVILEGED),
3118         SD_BUS_METHOD_WITH_ARGS("GetJobAfter",
3119                                 SD_BUS_ARGS("u", id),
3120                                 SD_BUS_RESULT("a(usssoo)", jobs),
3121                                 method_get_job_waiting,
3122                                 SD_BUS_VTABLE_UNPRIVILEGED),
3123         SD_BUS_METHOD_WITH_ARGS("GetJobBefore",
3124                                 SD_BUS_ARGS("u", id),
3125                                 SD_BUS_RESULT("a(usssoo)", jobs),
3126                                 method_get_job_waiting,
3127                                 SD_BUS_VTABLE_UNPRIVILEGED),
3128         SD_BUS_METHOD_WITH_ARGS("CancelJob",
3129                                 SD_BUS_ARGS("u", id),
3130                                 SD_BUS_NO_RESULT,
3131                                 method_cancel_job,
3132                                 SD_BUS_VTABLE_UNPRIVILEGED),
3133         SD_BUS_METHOD("ClearJobs",
3134                       NULL,
3135                       NULL,
3136                       method_clear_jobs,
3137                       SD_BUS_VTABLE_UNPRIVILEGED),
3138         SD_BUS_METHOD("ResetFailed",
3139                       NULL,
3140                       NULL,
3141                       method_reset_failed,
3142                       SD_BUS_VTABLE_UNPRIVILEGED),
3143         SD_BUS_METHOD_WITH_ARGS("SetShowStatus",
3144                                 SD_BUS_ARGS("s", mode),
3145                                 SD_BUS_NO_RESULT,
3146                                 method_set_show_status,
3147                                 SD_BUS_VTABLE_UNPRIVILEGED),
3148         SD_BUS_METHOD_WITH_ARGS("ListUnits",
3149                                 SD_BUS_NO_ARGS,
3150                                 SD_BUS_RESULT("a(ssssssouso)", units),
3151                                 method_list_units,
3152                                 SD_BUS_VTABLE_UNPRIVILEGED),
3153         SD_BUS_METHOD_WITH_ARGS("ListUnitsFiltered",
3154                                 SD_BUS_ARGS("as", states),
3155                                 SD_BUS_RESULT("a(ssssssouso)", units),
3156                                 method_list_units_filtered,
3157                                 SD_BUS_VTABLE_UNPRIVILEGED),
3158         SD_BUS_METHOD_WITH_ARGS("ListUnitsByPatterns",
3159                                 SD_BUS_ARGS("as", states, "as", patterns),
3160                                 SD_BUS_RESULT("a(ssssssouso)", units),
3161                                 method_list_units_by_patterns,
3162                                 SD_BUS_VTABLE_UNPRIVILEGED),
3163         SD_BUS_METHOD_WITH_ARGS("ListUnitsByNames",
3164                                 SD_BUS_ARGS("as", names),
3165                                 SD_BUS_RESULT("a(ssssssouso)", units),
3166                                 method_list_units_by_names,
3167                                 SD_BUS_VTABLE_UNPRIVILEGED),
3168         SD_BUS_METHOD_WITH_ARGS("ListJobs",
3169                                 SD_BUS_NO_ARGS,
3170                                 SD_BUS_RESULT("a(usssoo)", jobs),
3171                                 method_list_jobs,
3172                                 SD_BUS_VTABLE_UNPRIVILEGED),
3173         SD_BUS_METHOD("Subscribe",
3174                       NULL,
3175                       NULL,
3176                       method_subscribe,
3177                       SD_BUS_VTABLE_UNPRIVILEGED),
3178         SD_BUS_METHOD("Unsubscribe",
3179                       NULL,
3180                       NULL,
3181                       method_unsubscribe,
3182                       SD_BUS_VTABLE_UNPRIVILEGED),
3183         SD_BUS_METHOD_WITH_ARGS("Dump",
3184                                 SD_BUS_NO_ARGS,
3185                                 SD_BUS_RESULT("s", output),
3186                                 method_dump,
3187                                 SD_BUS_VTABLE_UNPRIVILEGED),
3188         SD_BUS_METHOD_WITH_ARGS("DumpUnitsMatchingPatterns",
3189                                 SD_BUS_ARGS("as", patterns),
3190                                 SD_BUS_RESULT("s", output),
3191                                 method_dump_units_matching_patterns,
3192                                 SD_BUS_VTABLE_UNPRIVILEGED),
3193         SD_BUS_METHOD_WITH_ARGS("DumpByFileDescriptor",
3194                                 SD_BUS_NO_ARGS,
3195                                 SD_BUS_RESULT("h", fd),
3196                                 method_dump_by_fd,
3197                                 SD_BUS_VTABLE_UNPRIVILEGED),
3198         SD_BUS_METHOD_WITH_ARGS("DumpUnitsMatchingPatternsByFileDescriptor",
3199                                 SD_BUS_ARGS("as", patterns),
3200                                 SD_BUS_RESULT("h", fd),
3201                                 method_dump_units_matching_patterns_by_fd,
3202                                 SD_BUS_VTABLE_UNPRIVILEGED),
3203         SD_BUS_METHOD_WITH_ARGS("CreateSnapshot",
3204                                 SD_BUS_ARGS("s", name, "b", cleanup),
3205                                 SD_BUS_RESULT("o", unit),
3206                                 method_refuse_snapshot,
3207                                 SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_HIDDEN),
3208         SD_BUS_METHOD_WITH_ARGS("RemoveSnapshot",
3209                                 SD_BUS_ARGS("s", name),
3210                                 SD_BUS_NO_RESULT,
3211                                 method_refuse_snapshot,
3212                                 SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_HIDDEN),
3213         SD_BUS_METHOD("Reload",
3214                       NULL,
3215                       NULL,
3216                       method_reload,
3217                       SD_BUS_VTABLE_UNPRIVILEGED),
3218         SD_BUS_METHOD("Reexecute",
3219                       NULL,
3220                       NULL,
3221                       method_reexecute,
3222                       SD_BUS_VTABLE_UNPRIVILEGED|SD_BUS_VTABLE_METHOD_NO_REPLY),
3223         SD_BUS_METHOD("Exit",
3224                       NULL,
3225                       NULL,
3226                       method_exit,
3227                       0),
3228         SD_BUS_METHOD("Reboot",
3229                       NULL,
3230                       NULL,
3231                       method_reboot,
3232                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3233         SD_BUS_METHOD("PowerOff",
3234                       NULL,
3235                       NULL,
3236                       method_poweroff,
3237                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3238         SD_BUS_METHOD("Halt",
3239                       NULL,
3240                       NULL,
3241                       method_halt,
3242                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3243         SD_BUS_METHOD("KExec",
3244                       NULL,
3245                       NULL,
3246                       method_kexec,
3247                       SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3248         SD_BUS_METHOD_WITH_ARGS("SwitchRoot",
3249                                 SD_BUS_ARGS("s", new_root, "s", init),
3250                                 SD_BUS_NO_RESULT,
3251                                 method_switch_root,
3252                                 SD_BUS_VTABLE_CAPABILITY(CAP_SYS_BOOT)),
3253         SD_BUS_METHOD_WITH_ARGS("SetEnvironment",
3254                                 SD_BUS_ARGS("as", assignments),
3255                                 SD_BUS_NO_RESULT,
3256                                 method_set_environment,
3257                                 SD_BUS_VTABLE_UNPRIVILEGED),
3258         SD_BUS_METHOD_WITH_ARGS("UnsetEnvironment",
3259                                 SD_BUS_ARGS("as", names),
3260                                 SD_BUS_NO_RESULT,
3261                                 method_unset_environment,
3262                                 SD_BUS_VTABLE_UNPRIVILEGED),
3263         SD_BUS_METHOD_WITH_ARGS("UnsetAndSetEnvironment",
3264                                 SD_BUS_ARGS("as", names, "as", assignments),
3265                                 SD_BUS_NO_RESULT,
3266                                 method_unset_and_set_environment,
3267                                 SD_BUS_VTABLE_UNPRIVILEGED),
3268         SD_BUS_METHOD_WITH_ARGS("EnqueueMarkedJobs",
3269                                 SD_BUS_NO_ARGS,
3270                                 SD_BUS_RESULT("ao", jobs),
3271                                 method_enqueue_marked_jobs,
3272                                 SD_BUS_VTABLE_UNPRIVILEGED),
3273         SD_BUS_METHOD_WITH_ARGS("ListUnitFiles",
3274                                 SD_BUS_NO_ARGS,
3275                                 SD_BUS_RESULT("a(ss)", unit_files),
3276                                 method_list_unit_files,
3277                                 SD_BUS_VTABLE_UNPRIVILEGED),
3278         SD_BUS_METHOD_WITH_ARGS("ListUnitFilesByPatterns",
3279                                 SD_BUS_ARGS("as", states, "as", patterns),
3280                                 SD_BUS_RESULT("a(ss)", unit_files),
3281                                 method_list_unit_files_by_patterns,
3282                                 SD_BUS_VTABLE_UNPRIVILEGED),
3283         SD_BUS_METHOD_WITH_ARGS("GetUnitFileState",
3284                                 SD_BUS_ARGS("s", file),
3285                                 SD_BUS_RESULT("s", state),
3286                                 method_get_unit_file_state,
3287                                 SD_BUS_VTABLE_UNPRIVILEGED),
3288         SD_BUS_METHOD_WITH_ARGS("EnableUnitFiles",
3289                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3290                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3291                                 method_enable_unit_files,
3292                                 SD_BUS_VTABLE_UNPRIVILEGED),
3293         SD_BUS_METHOD_WITH_ARGS("DisableUnitFiles",
3294                                 SD_BUS_ARGS("as", files, "b", runtime),
3295                                 SD_BUS_RESULT("a(sss)", changes),
3296                                 method_disable_unit_files,
3297                                 SD_BUS_VTABLE_UNPRIVILEGED),
3298         SD_BUS_METHOD_WITH_ARGS("EnableUnitFilesWithFlags",
3299                                 SD_BUS_ARGS("as", files, "t", flags),
3300                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3301                                 method_enable_unit_files_with_flags,
3302                                 SD_BUS_VTABLE_UNPRIVILEGED),
3303         SD_BUS_METHOD_WITH_ARGS("DisableUnitFilesWithFlags",
3304                                 SD_BUS_ARGS("as", files, "t", flags),
3305                                 SD_BUS_RESULT("a(sss)", changes),
3306                                 method_disable_unit_files_with_flags,
3307                                 SD_BUS_VTABLE_UNPRIVILEGED),
3308         SD_BUS_METHOD_WITH_ARGS("DisableUnitFilesWithFlagsAndInstallInfo",
3309                                 SD_BUS_ARGS("as", files, "t", flags),
3310                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3311                                 method_disable_unit_files_with_flags_and_install_info,
3312                                 SD_BUS_VTABLE_UNPRIVILEGED),
3313         SD_BUS_METHOD_WITH_ARGS("ReenableUnitFiles",
3314                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3315                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3316                                 method_reenable_unit_files,
3317                                 SD_BUS_VTABLE_UNPRIVILEGED),
3318         SD_BUS_METHOD_WITH_ARGS("LinkUnitFiles",
3319                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3320                                 SD_BUS_RESULT("a(sss)", changes),
3321                                 method_link_unit_files,
3322                                 SD_BUS_VTABLE_UNPRIVILEGED),
3323         SD_BUS_METHOD_WITH_ARGS("PresetUnitFiles",
3324                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3325                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3326                                 method_preset_unit_files,
3327                                 SD_BUS_VTABLE_UNPRIVILEGED),
3328         SD_BUS_METHOD_WITH_ARGS("PresetUnitFilesWithMode",
3329                                 SD_BUS_ARGS("as", files, "s", mode, "b", runtime, "b", force),
3330                                 SD_BUS_RESULT("b", carries_install_info, "a(sss)", changes),
3331                                 method_preset_unit_files_with_mode,
3332                                 SD_BUS_VTABLE_UNPRIVILEGED),
3333         SD_BUS_METHOD_WITH_ARGS("MaskUnitFiles",
3334                                 SD_BUS_ARGS("as", files, "b", runtime, "b", force),
3335                                 SD_BUS_RESULT("a(sss)", changes),
3336                                 method_mask_unit_files,
3337                                 SD_BUS_VTABLE_UNPRIVILEGED),
3338         SD_BUS_METHOD_WITH_ARGS("UnmaskUnitFiles",
3339                                 SD_BUS_ARGS("as", files, "b", runtime),
3340                                 SD_BUS_RESULT("a(sss)", changes),
3341                                 method_unmask_unit_files,
3342                                 SD_BUS_VTABLE_UNPRIVILEGED),
3343         SD_BUS_METHOD_WITH_ARGS("RevertUnitFiles",
3344                                 SD_BUS_ARGS("as", files),
3345                                 SD_BUS_RESULT("a(sss)", changes),
3346                                 method_revert_unit_files,
3347                                 SD_BUS_VTABLE_UNPRIVILEGED),
3348         SD_BUS_METHOD_WITH_ARGS("SetDefaultTarget",
3349                                 SD_BUS_ARGS("s", name, "b", force),
3350                                 SD_BUS_RESULT("a(sss)", changes),
3351                                 method_set_default_target,
3352                                 SD_BUS_VTABLE_UNPRIVILEGED),
3353         SD_BUS_METHOD_WITH_ARGS("GetDefaultTarget",
3354                                 SD_BUS_NO_ARGS,
3355                                 SD_BUS_RESULT("s", name),
3356                                 method_get_default_target,
3357                                 SD_BUS_VTABLE_UNPRIVILEGED),
3358         SD_BUS_METHOD_WITH_ARGS("PresetAllUnitFiles",
3359                                 SD_BUS_ARGS("s", mode, "b", runtime, "b", force),
3360                                 SD_BUS_RESULT("a(sss)", changes),
3361                                 method_preset_all_unit_files,
3362                                 SD_BUS_VTABLE_UNPRIVILEGED),
3363         SD_BUS_METHOD_WITH_ARGS("AddDependencyUnitFiles",
3364                                 SD_BUS_ARGS("as", files, "s", target, "s", type, "b", runtime, "b", force),
3365                                 SD_BUS_RESULT("a(sss)", changes),
3366                                 method_add_dependency_unit_files,
3367                                 SD_BUS_VTABLE_UNPRIVILEGED),
3368         SD_BUS_METHOD_WITH_ARGS("GetUnitFileLinks",
3369                                 SD_BUS_ARGS("s", name, "b", runtime),
3370                                 SD_BUS_RESULT("as", links),
3371                                 method_get_unit_file_links,
3372                                 SD_BUS_VTABLE_UNPRIVILEGED),
3373         SD_BUS_METHOD_WITH_ARGS("SetExitCode",
3374                                 SD_BUS_ARGS("y", number),
3375                                 SD_BUS_NO_RESULT,
3376                                 method_set_exit_code,
3377                                 SD_BUS_VTABLE_UNPRIVILEGED),
3378         SD_BUS_METHOD_WITH_ARGS("LookupDynamicUserByName",
3379                                 SD_BUS_ARGS("s", name),
3380                                 SD_BUS_RESULT("u", uid),
3381                                 method_lookup_dynamic_user_by_name,
3382                                 SD_BUS_VTABLE_UNPRIVILEGED),
3383         SD_BUS_METHOD_WITH_ARGS("LookupDynamicUserByUID",
3384                                 SD_BUS_ARGS("u", uid),
3385                                 SD_BUS_RESULT("s", name),
3386                                 method_lookup_dynamic_user_by_uid,
3387                                 SD_BUS_VTABLE_UNPRIVILEGED),
3388         SD_BUS_METHOD_WITH_ARGS("GetDynamicUsers",
3389                                 SD_BUS_NO_ARGS,
3390                                 SD_BUS_RESULT("a(us)", users),
3391                                 method_get_dynamic_users,
3392                                 SD_BUS_VTABLE_UNPRIVILEGED),
3393         SD_BUS_METHOD_WITH_ARGS("DumpUnitFileDescriptorStore",
3394                                 SD_BUS_ARGS("s", name),
3395                                 SD_BUS_RESULT("a(suuutuusu)", entries),
3396                                 method_dump_unit_descriptor_store,
3397                                 SD_BUS_VTABLE_UNPRIVILEGED),
3398
3399         SD_BUS_SIGNAL_WITH_ARGS("UnitNew",
3400                                 SD_BUS_ARGS("s", id, "o", unit),
3401                                 0),
3402         SD_BUS_SIGNAL_WITH_ARGS("UnitRemoved",
3403                                 SD_BUS_ARGS("s", id, "o", unit),
3404                                 0),
3405         SD_BUS_SIGNAL_WITH_ARGS("JobNew",
3406                                 SD_BUS_ARGS("u", id, "o", job, "s", unit),
3407                                 0),
3408         SD_BUS_SIGNAL_WITH_ARGS("JobRemoved",
3409                                 SD_BUS_ARGS("u", id, "o", job, "s", unit, "s", result),
3410                                 0),
3411         SD_BUS_SIGNAL_WITH_ARGS("StartupFinished",
3412                                 SD_BUS_ARGS("t", firmware, "t", loader, "t", kernel, "t", initrd, "t", userspace, "t", total),
3413                                 0),
3414         SD_BUS_SIGNAL("UnitFilesChanged", NULL, 0),
3415         SD_BUS_SIGNAL_WITH_ARGS("Reloading",
3416                                 SD_BUS_ARGS("b", active),
3417                                 0),
3418
3419         SD_BUS_VTABLE_END
3420 };
3421
3422 const sd_bus_vtable bus_manager_log_control_vtable[] = {
3423         SD_BUS_VTABLE_START(0),
3424
3425         /* We define a private version of this interface here, since we want slightly different
3426          * implementations for the setters. We'll still use the generic getters however, and we share the
3427          * setters with the implementations for the Manager interface above (which pre-dates the generic
3428          * service API interface). */
3429
3430         SD_BUS_WRITABLE_PROPERTY("LogLevel", "s", bus_property_get_log_level, property_set_log_level, 0, 0),
3431         SD_BUS_WRITABLE_PROPERTY("LogTarget", "s", bus_property_get_log_target, property_set_log_target, 0, 0),
3432         SD_BUS_PROPERTY("SyslogIdentifier", "s", bus_property_get_syslog_identifier, 0, 0),
3433
3434         SD_BUS_VTABLE_END,
3435 };
3436
3437 static int send_finished(sd_bus *bus, void *userdata) {
3438         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
3439         usec_t *times = ASSERT_PTR(userdata);
3440         int r;
3441
3442         assert(bus);
3443
3444         r = sd_bus_message_new_signal(bus,
3445                                       &message,
3446                                       "/org/freedesktop/systemd1",
3447                                       "org.freedesktop.systemd1.Manager",
3448                                       "StartupFinished");
3449         if (r < 0)
3450                 return r;
3451
3452         r = sd_bus_message_append(message, "tttttt", times[0], times[1], times[2], times[3], times[4], times[5]);
3453         if (r < 0)
3454                 return r;
3455
3456         return sd_bus_send(bus, message, NULL);
3457 }
3458
3459 void bus_manager_send_finished(
3460                 Manager *m,
3461                 usec_t firmware_usec,
3462                 usec_t loader_usec,
3463                 usec_t kernel_usec,
3464                 usec_t initrd_usec,
3465                 usec_t userspace_usec,
3466                 usec_t total_usec) {
3467
3468         int r;
3469
3470         assert(m);
3471
3472         r = bus_foreach_bus(
3473                         m,
3474                         NULL,
3475                         send_finished,
3476                         (usec_t[6]) {
3477                                 firmware_usec,
3478                                 loader_usec,
3479                                 kernel_usec,
3480                                 initrd_usec,
3481                                 userspace_usec,
3482                                 total_usec
3483                         });
3484         if (r < 0)
3485                 log_debug_errno(r, "Failed to send finished signal: %m");
3486 }
3487
3488 static int send_reloading(sd_bus *bus, void *userdata) {
3489         _cleanup_(sd_bus_message_unrefp) sd_bus_message *message = NULL;
3490         int r;
3491
3492         assert(bus);
3493
3494         r = sd_bus_message_new_signal(bus, &message, "/org/freedesktop/systemd1", "org.freedesktop.systemd1.Manager", "Reloading");
3495         if (r < 0)
3496                 return r;
3497
3498         r = sd_bus_message_append(message, "b", PTR_TO_INT(userdata));
3499         if (r < 0)
3500                 return r;
3501
3502         return sd_bus_send(bus, message, NULL);
3503 }
3504
3505 void bus_manager_send_reloading(Manager *m, bool active) {
3506         int r;
3507
3508         assert(m);
3509
3510         r = bus_foreach_bus(m, NULL, send_reloading, INT_TO_PTR(active));
3511         if (r < 0)
3512                 log_debug_errno(r, "Failed to send reloading signal: %m");
3513 }
3514
3515 static int send_changed_signal(sd_bus *bus, void *userdata) {
3516         assert(bus);
3517
3518         return sd_bus_emit_properties_changed_strv(bus,
3519                                                    "/org/freedesktop/systemd1",
3520                                                    "org.freedesktop.systemd1.Manager",
3521                                                    NULL);
3522 }
3523
3524 void bus_manager_send_change_signal(Manager *m) {
3525         int r;
3526
3527         assert(m);
3528
3529         r = bus_foreach_bus(m, NULL, send_changed_signal, NULL);
3530         if (r < 0)
3531                 log_debug_errno(r, "Failed to send manager change signal: %m");
3532 }