src/core/dbus-service.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include <fcntl.h>
   4
   5 #include "alloc-util.h"
   6 #include "async.h"
   7 #include "bus-internal.h"
   8 #include "bus-util.h"
   9 #include "dbus-cgroup.h"
  10 #include "dbus-execute.h"
  11 #include "dbus-kill.h"
  12 #include "dbus-manager.h"
  13 #include "dbus-service.h"
  14 #include "dbus-util.h"
  15 #include "exit-status.h"
  16 #include "fd-util.h"
  17 #include "fileio.h"
  18 #include "parse-util.h"
  19 #include "path-util.h"
  20 #include "service.h"
  21 #include "signal-util.h"
  22 #include "string-util.h"
  23 #include "strv.h"
  24 #include "unit.h"
  25
  26 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, service_type, ServiceType);
  27 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, service_result, ServiceResult);
  28 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_restart, service_restart, ServiceRestart);
  29 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access, notify_access, NotifyAccess);
  30 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction);
  31 static BUS_DEFINE_PROPERTY_GET(property_get_timeout_abort_usec, "t", Service, service_timeout_abort_usec);
  32
  33 static int property_get_exit_status_set(
  34                 sd_bus *bus,
  35                 const char *path,
  36                 const char *interface,
  37                 const char *property,
  38                 sd_bus_message *reply,
  39                 void *userdata,
  40                 sd_bus_error *error) {
  41
  42         const ExitStatusSet *status_set = userdata;
  43         unsigned n;
  44         Iterator i;
  45         int r;
  46
  47         assert(bus);
  48         assert(reply);
  49         assert(status_set);
  50
  51         r = sd_bus_message_open_container(reply, 'r', "aiai");
  52         if (r < 0)
  53                 return r;
  54
  55         r = sd_bus_message_open_container(reply, 'a', "i");
  56         if (r < 0)
  57                 return r;
  58
  59         BITMAP_FOREACH(n, &status_set->status, i) {
  60                 assert(n < 256);
  61
  62                 r = sd_bus_message_append_basic(reply, 'i', &n);
  63                 if (r < 0)
  64                         return r;
  65         }
  66
  67         r = sd_bus_message_close_container(reply);
  68         if (r < 0)
  69                 return r;
  70
  71         r = sd_bus_message_open_container(reply, 'a', "i");
  72         if (r < 0)
  73                 return r;
  74
  75         BITMAP_FOREACH(n, &status_set->signal, i) {
  76                 const char *str;
  77
  78                 str = signal_to_string(n);
  79                 if (!str)
  80                         continue;
  81
  82                 r = sd_bus_message_append_basic(reply, 'i', &n);
  83                 if (r < 0)
  84                         return r;
  85         }
  86
  87         r = sd_bus_message_close_container(reply);
  88         if (r < 0)
  89                 return r;
  90
  91         return sd_bus_message_close_container(reply);
  92 }
  93
  94 const sd_bus_vtable bus_service_vtable[] = {
  95         SD_BUS_VTABLE_START(0),
  96         SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Service, type), SD_BUS_VTABLE_PROPERTY_CONST),
  97         SD_BUS_PROPERTY("Restart", "s", property_get_restart, offsetof(Service, restart), SD_BUS_VTABLE_PROPERTY_CONST),
  98         SD_BUS_PROPERTY("PIDFile", "s", NULL, offsetof(Service, pid_file), SD_BUS_VTABLE_PROPERTY_CONST),
  99         SD_BUS_PROPERTY("NotifyAccess", "s", property_get_notify_access, offsetof(Service, notify_access), SD_BUS_VTABLE_PROPERTY_CONST),
 100         SD_BUS_PROPERTY("RestartUSec", "t", bus_property_get_usec, offsetof(Service, restart_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 101         SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec, offsetof(Service, timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 102         SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Service, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 103         SD_BUS_PROPERTY("TimeoutAbortUSec", "t", property_get_timeout_abort_usec, 0, 0),
 104         SD_BUS_PROPERTY("RuntimeMaxUSec", "t", bus_property_get_usec, offsetof(Service, runtime_max_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 105         SD_BUS_PROPERTY("WatchdogUSec", "t", bus_property_get_usec, offsetof(Service, watchdog_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 106         BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service, watchdog_timestamp), 0),
 107         SD_BUS_PROPERTY("PermissionsStartOnly", "b", bus_property_get_bool, offsetof(Service, permissions_start_only), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), /* 😷 deprecated */
 108         SD_BUS_PROPERTY("RootDirectoryStartOnly", "b", bus_property_get_bool, offsetof(Service, root_directory_start_only), SD_BUS_VTABLE_PROPERTY_CONST),
 109         SD_BUS_PROPERTY("RemainAfterExit", "b", bus_property_get_bool, offsetof(Service, remain_after_exit), SD_BUS_VTABLE_PROPERTY_CONST),
 110         SD_BUS_PROPERTY("GuessMainPID", "b", bus_property_get_bool, offsetof(Service, guess_main_pid), SD_BUS_VTABLE_PROPERTY_CONST),
 111         SD_BUS_PROPERTY("RestartPreventExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, restart_prevent_status), SD_BUS_VTABLE_PROPERTY_CONST),
 112         SD_BUS_PROPERTY("RestartForceExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, restart_force_status), SD_BUS_VTABLE_PROPERTY_CONST),
 113         SD_BUS_PROPERTY("SuccessExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, success_status), SD_BUS_VTABLE_PROPERTY_CONST),
 114         SD_BUS_PROPERTY("MainPID", "u", bus_property_get_pid, offsetof(Service, main_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 115         SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Service, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 116         SD_BUS_PROPERTY("BusName", "s", NULL, offsetof(Service, bus_name), SD_BUS_VTABLE_PROPERTY_CONST),
 117         SD_BUS_PROPERTY("FileDescriptorStoreMax", "u", bus_property_get_unsigned, offsetof(Service, n_fd_store_max), SD_BUS_VTABLE_PROPERTY_CONST),
 118         SD_BUS_PROPERTY("NFileDescriptorStore", "u", bus_property_get_unsigned, offsetof(Service, n_fd_store), 0),
 119         SD_BUS_PROPERTY("StatusText", "s", NULL, offsetof(Service, status_text), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 120         SD_BUS_PROPERTY("StatusErrno", "i", bus_property_get_int, offsetof(Service, status_errno), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 121         SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Service, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 122         SD_BUS_PROPERTY("ReloadResult", "s", property_get_result, offsetof(Service, reload_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 123         SD_BUS_PROPERTY("CleanResult", "s", property_get_result, offsetof(Service, clean_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 124         SD_BUS_PROPERTY("USBFunctionDescriptors", "s", NULL, offsetof(Service, usb_function_descriptors), SD_BUS_VTABLE_PROPERTY_CONST),
 125         SD_BUS_PROPERTY("USBFunctionStrings", "s", NULL, offsetof(Service, usb_function_strings), SD_BUS_VTABLE_PROPERTY_CONST),
 126         SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 127         SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 128         SD_BUS_PROPERTY("NRestarts", "u", bus_property_get_unsigned, offsetof(Service, n_restarts), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 129         SD_BUS_PROPERTY("OOMPolicy", "s", bus_property_get_oom_policy, offsetof(Service, oom_policy), SD_BUS_VTABLE_PROPERTY_CONST),
 130
 131         BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service, main_exec_status), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 132         BUS_EXEC_COMMAND_LIST_VTABLE("ExecCondition", offsetof(Service, exec_command[SERVICE_EXEC_CONDITION]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 133         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecConditionEx", offsetof(Service, exec_command[SERVICE_EXEC_CONDITION]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 134         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 135         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartPreEx", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 136         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStart", offsetof(Service, exec_command[SERVICE_EXEC_START]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 137         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartEx", offsetof(Service, exec_command[SERVICE_EXEC_START]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 138         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 139         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartPostEx", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 140         BUS_EXEC_COMMAND_LIST_VTABLE("ExecReload", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 141         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecReloadEx", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 142         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStop", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 143         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStopEx", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 144         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 145         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStopPostEx", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 146
 147         /* The following four are obsolete, and thus marked hidden here. They moved into the Unit interface */
 148         SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_ratelimit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 149         SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_ratelimit.burst), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 150         SD_BUS_PROPERTY("StartLimitAction", "s", property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 151         SD_BUS_PROPERTY("FailureAction", "s", property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 152         SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 153         SD_BUS_VTABLE_END
 154 };
 155
 156 static int bus_set_transient_exit_status(
 157                 Unit *u,
 158                 const char *name,
 159                 ExitStatusSet *status_set,
 160                 sd_bus_message *message,
 161                 UnitWriteFlags flags,
 162                 sd_bus_error *error) {
 163
 164         const int32_t *status, *signal;
 165         size_t n_status, n_signal, i;
 166         int r;
 167
 168         r = sd_bus_message_enter_container(message, 'r', "aiai");
 169         if (r < 0)
 170                 return r;
 171
 172         r = sd_bus_message_read_array(message, 'i', (const void **) &status, &n_status);
 173         if (r < 0)
 174                 return r;
 175
 176         r = sd_bus_message_read_array(message, 'i', (const void **) &signal, &n_signal);
 177         if (r < 0)
 178                 return r;
 179
 180         r = sd_bus_message_exit_container(message);
 181         if (r < 0)
 182                 return r;
 183
 184         n_status /= sizeof(int32_t);
 185         n_signal /= sizeof(int32_t);
 186
 187         if (n_status == 0 && n_signal == 0 && !UNIT_WRITE_FLAGS_NOOP(flags)) {
 188                 exit_status_set_free(status_set);
 189                 unit_write_settingf(u, flags, name, "%s=", name);
 190                 return 1;
 191         }
 192
 193         for (i = 0; i < n_status; i++) {
 194                 if (status[i] < 0 || status[i] > 255)
 195                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid status code in %s: %"PRIi32, name, status[i]);
 196
 197                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 198                         r = bitmap_set(&status_set->status, status[i]);
 199                         if (r < 0)
 200                                 return r;
 201
 202                         unit_write_settingf(u, flags, name, "%s=%"PRIi32, name, status[i]);
 203                 }
 204         }
 205
 206         for (i = 0; i < n_signal; i++) {
 207                 const char *str;
 208
 209                 str = signal_to_string((int) signal[i]);
 210                 if (!str)
 211                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal in %s: %"PRIi32, name, signal[i]);
 212
 213                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 214                         r = bitmap_set(&status_set->signal, signal[i]);
 215                         if (r < 0)
 216                                 return r;
 217
 218                         unit_write_settingf(u, flags, name, "%s=%s", name, str);
 219                 }
 220         }
 221
 222         return 1;
 223 }
 224
 225 static int bus_set_transient_std_fd(
 226                 Unit *u,
 227                 const char *name,
 228                 int *p,
 229                 bool *b,
 230                 sd_bus_message *message,
 231                 UnitWriteFlags flags,
 232                 sd_bus_error *error) {
 233
 234         int fd, r;
 235
 236         assert(p);
 237         assert(b);
 238
 239         r = sd_bus_message_read(message, "h", &fd);
 240         if (r < 0)
 241                 return r;
 242
 243         if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 244                 int copy;
 245
 246                 copy = fcntl(fd, F_DUPFD_CLOEXEC, 3);
 247                 if (copy < 0)
 248                         return -errno;
 249
 250                 asynchronous_close(*p);
 251                 *p = copy;
 252                 *b = true;
 253         }
 254
 255         return 1;
 256 }
 257 static BUS_DEFINE_SET_TRANSIENT_PARSE(notify_access, NotifyAccess, notify_access_from_string);
 258 static BUS_DEFINE_SET_TRANSIENT_PARSE(service_type, ServiceType, service_type_from_string);
 259 static BUS_DEFINE_SET_TRANSIENT_PARSE(service_restart, ServiceRestart, service_restart_from_string);
 260 static BUS_DEFINE_SET_TRANSIENT_PARSE(oom_policy, OOMPolicy, oom_policy_from_string);
 261 static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(bus_name, service_name_is_valid);
 262
 263 static int bus_service_set_transient_property(
 264                 Service *s,
 265                 const char *name,
 266                 sd_bus_message *message,
 267                 UnitWriteFlags flags,
 268                 sd_bus_error *error) {
 269
 270         Unit *u = UNIT(s);
 271         ServiceExecCommand ci;
 272         int r;
 273
 274         assert(s);
 275         assert(name);
 276         assert(message);
 277
 278         flags |= UNIT_PRIVATE;
 279
 280         if (streq(name, "PermissionsStartOnly"))
 281                 return bus_set_transient_bool(u, name, &s->permissions_start_only, message, flags, error);
 282
 283         if (streq(name, "RootDirectoryStartOnly"))
 284                 return bus_set_transient_bool(u, name, &s->root_directory_start_only, message, flags, error);
 285
 286         if (streq(name, "RemainAfterExit"))
 287                 return bus_set_transient_bool(u, name, &s->remain_after_exit, message, flags, error);
 288
 289         if (streq(name, "GuessMainPID"))
 290                 return bus_set_transient_bool(u, name, &s->guess_main_pid, message, flags, error);
 291
 292         if (streq(name, "Type"))
 293                 return bus_set_transient_service_type(u, name, &s->type, message, flags, error);
 294
 295         if (streq(name, "OOMPolicy"))
 296                 return bus_set_transient_oom_policy(u, name, &s->oom_policy, message, flags, error);
 297
 298         if (streq(name, "RestartUSec"))
 299                 return bus_set_transient_usec(u, name, &s->restart_usec, message, flags, error);
 300
 301         if (streq(name, "TimeoutStartUSec")) {
 302                 r = bus_set_transient_usec(u, name, &s->timeout_start_usec, message, flags, error);
 303                 if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags))
 304                         s->start_timeout_defined = true;
 305
 306                 return r;
 307         }
 308
 309         if (streq(name, "TimeoutStopUSec"))
 310                 return bus_set_transient_usec(u, name, &s->timeout_stop_usec, message, flags, error);
 311
 312         if (streq(name, "RuntimeMaxUSec"))
 313                 return bus_set_transient_usec(u, name, &s->runtime_max_usec, message, flags, error);
 314
 315         if (streq(name, "WatchdogUSec"))
 316                 return bus_set_transient_usec(u, name, &s->watchdog_usec, message, flags, error);
 317
 318         if (streq(name, "FileDescriptorStoreMax"))
 319                 return bus_set_transient_unsigned(u, name, &s->n_fd_store_max, message, flags, error);
 320
 321         if (streq(name, "NotifyAccess"))
 322                 return bus_set_transient_notify_access(u, name, &s->notify_access, message, flags, error);
 323
 324         if (streq(name, "PIDFile")) {
 325                 _cleanup_free_ char *n = NULL;
 326                 const char *v, *e;
 327
 328                 r = sd_bus_message_read(message, "s", &v);
 329                 if (r < 0)
 330                         return r;
 331
 332                 if (!isempty(v)) {
 333                         n = path_make_absolute(v, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
 334                         if (!n)
 335                                 return -ENOMEM;
 336
 337                         path_simplify(n, true);
 338
 339                         if (!path_is_normalized(n))
 340                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "PIDFile= path '%s' is not valid", n);
 341
 342                         e = path_startswith(n, "/var/run/");
 343                         if (e) {
 344                                 char *z;
 345
 346                                 z = path_join("/run", e);
 347                                 if (!z)
 348                                         return log_oom();
 349
 350                                 if (!UNIT_WRITE_FLAGS_NOOP(flags))
 351                                         log_unit_notice(u, "Transient unit's PIDFile= property references path below legacy directory /var/run, updating %s → %s; please update client accordingly.", n, z);
 352
 353                                 free_and_replace(n, z);
 354                         }
 355                 }
 356
 357                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 358                         free_and_replace(s->pid_file, n);
 359                         unit_write_settingf(u, flags, name, "%s=%s", name, strempty(s->pid_file));
 360                 }
 361
 362                 return 1;
 363         }
 364
 365         if (streq(name, "USBFunctionDescriptors"))
 366                 return bus_set_transient_path(u, name, &s->usb_function_descriptors, message, flags, error);
 367
 368         if (streq(name, "USBFunctionStrings"))
 369                 return bus_set_transient_path(u, name, &s->usb_function_strings, message, flags, error);
 370
 371         if (streq(name, "BusName"))
 372                 return bus_set_transient_bus_name(u, name, &s->bus_name, message, flags, error);
 373
 374         if (streq(name, "Restart"))
 375                 return bus_set_transient_service_restart(u, name, &s->restart, message, flags, error);
 376
 377         if (streq(name, "RestartPreventExitStatus"))
 378                 return bus_set_transient_exit_status(u, name, &s->restart_prevent_status, message, flags, error);
 379
 380         if (streq(name, "RestartForceExitStatus"))
 381                 return bus_set_transient_exit_status(u, name, &s->restart_force_status, message, flags, error);
 382
 383         if (streq(name, "SuccessExitStatus"))
 384                 return bus_set_transient_exit_status(u, name, &s->success_status, message, flags, error);
 385
 386         ci = service_exec_command_from_string(name);
 387         ci = (ci >= 0) ? ci : service_exec_ex_command_from_string(name);
 388         if (ci >= 0)
 389                 return bus_set_transient_exec_command(u, name, &s->exec_command[ci], message, flags, error);
 390
 391         if (streq(name, "StandardInputFileDescriptor"))
 392                 return bus_set_transient_std_fd(u, name, &s->stdin_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 393
 394         if (streq(name, "StandardOutputFileDescriptor"))
 395                 return bus_set_transient_std_fd(u, name, &s->stdout_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 396
 397         if (streq(name, "StandardErrorFileDescriptor"))
 398                 return bus_set_transient_std_fd(u, name, &s->stderr_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 399
 400         return 0;
 401 }
 402
 403 int bus_service_set_property(
 404                 Unit *u,
 405                 const char *name,
 406                 sd_bus_message *message,
 407                 UnitWriteFlags flags,
 408                 sd_bus_error *error) {
 409
 410         Service *s = SERVICE(u);
 411         int r;
 412
 413         assert(s);
 414         assert(name);
 415         assert(message);
 416
 417         r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, flags, error);
 418         if (r != 0)
 419                 return r;
 420
 421         if (u->transient && u->load_state == UNIT_STUB) {
 422                 /* This is a transient unit, let's load a little more */
 423
 424                 r = bus_service_set_transient_property(s, name, message, flags, error);
 425                 if (r != 0)
 426                         return r;
 427
 428                 r = bus_exec_context_set_transient_property(u, &s->exec_context, name, message, flags, error);
 429                 if (r != 0)
 430                         return r;
 431
 432                 r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, flags, error);
 433                 if (r != 0)
 434                         return r;
 435         }
 436
 437         return 0;
 438 }
 439
 440 int bus_service_commit_properties(Unit *u) {
 441         assert(u);
 442
 443         unit_invalidate_cgroup_members_masks(u);
 444         unit_realize_cgroup(u);
 445
 446         return 0;
 447 }