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-get-properties.h"
   8 #include "dbus-cgroup.h"
   9 #include "dbus-execute.h"
  10 #include "dbus-kill.h"
  11 #include "dbus-manager.h"
  12 #include "dbus-service.h"
  13 #include "dbus-util.h"
  14 #include "exit-status.h"
  15 #include "fd-util.h"
  16 #include "fileio.h"
  17 #include "parse-util.h"
  18 #include "path-util.h"
  19 #include "service.h"
  20 #include "signal-util.h"
  21 #include "string-util.h"
  22 #include "strv.h"
  23 #include "unit.h"
  24
  25 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_type, service_type, ServiceType);
  26 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_result, service_result, ServiceResult);
  27 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_restart, service_restart, ServiceRestart);
  28 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_notify_access, notify_access, NotifyAccess);
  29 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_emergency_action, emergency_action, EmergencyAction);
  30 static BUS_DEFINE_PROPERTY_GET(property_get_timeout_abort_usec, "t", Service, service_timeout_abort_usec);
  31 static BUS_DEFINE_PROPERTY_GET(property_get_watchdog_usec, "t", Service, service_get_watchdog_usec);
  32 static BUS_DEFINE_PROPERTY_GET_ENUM(property_get_timeout_failure_mode, service_timeout_failure_mode, ServiceTimeoutFailureMode);
  33
  34 static int property_get_exit_status_set(
  35                 sd_bus *bus,
  36                 const char *path,
  37                 const char *interface,
  38                 const char *property,
  39                 sd_bus_message *reply,
  40                 void *userdata,
  41                 sd_bus_error *error) {
  42
  43         const ExitStatusSet *status_set = userdata;
  44         unsigned n;
  45         Iterator i;
  46         int r;
  47
  48         assert(bus);
  49         assert(reply);
  50         assert(status_set);
  51
  52         r = sd_bus_message_open_container(reply, 'r', "aiai");
  53         if (r < 0)
  54                 return r;
  55
  56         r = sd_bus_message_open_container(reply, 'a', "i");
  57         if (r < 0)
  58                 return r;
  59
  60         BITMAP_FOREACH(n, &status_set->status, i) {
  61                 assert(n < 256);
  62
  63                 r = sd_bus_message_append_basic(reply, 'i', &n);
  64                 if (r < 0)
  65                         return r;
  66         }
  67
  68         r = sd_bus_message_close_container(reply);
  69         if (r < 0)
  70                 return r;
  71
  72         r = sd_bus_message_open_container(reply, 'a', "i");
  73         if (r < 0)
  74                 return r;
  75
  76         BITMAP_FOREACH(n, &status_set->signal, i) {
  77                 const char *str;
  78
  79                 str = signal_to_string(n);
  80                 if (!str)
  81                         continue;
  82
  83                 r = sd_bus_message_append_basic(reply, 'i', &n);
  84                 if (r < 0)
  85                         return r;
  86         }
  87
  88         r = sd_bus_message_close_container(reply);
  89         if (r < 0)
  90                 return r;
  91
  92         return sd_bus_message_close_container(reply);
  93 }
  94
  95 const sd_bus_vtable bus_service_vtable[] = {
  96         SD_BUS_VTABLE_START(0),
  97         SD_BUS_PROPERTY("Type", "s", property_get_type, offsetof(Service, type), SD_BUS_VTABLE_PROPERTY_CONST),
  98         SD_BUS_PROPERTY("Restart", "s", property_get_restart, offsetof(Service, restart), SD_BUS_VTABLE_PROPERTY_CONST),
  99         SD_BUS_PROPERTY("PIDFile", "s", NULL, offsetof(Service, pid_file), SD_BUS_VTABLE_PROPERTY_CONST),
 100         SD_BUS_PROPERTY("NotifyAccess", "s", property_get_notify_access, offsetof(Service, notify_access), SD_BUS_VTABLE_PROPERTY_CONST),
 101         SD_BUS_PROPERTY("RestartUSec", "t", bus_property_get_usec, offsetof(Service, restart_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 102         SD_BUS_PROPERTY("TimeoutStartUSec", "t", bus_property_get_usec, offsetof(Service, timeout_start_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 103         SD_BUS_PROPERTY("TimeoutStopUSec", "t", bus_property_get_usec, offsetof(Service, timeout_stop_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 104         SD_BUS_PROPERTY("TimeoutAbortUSec", "t", property_get_timeout_abort_usec, 0, 0),
 105         SD_BUS_PROPERTY("TimeoutStartFailureMode", "s", property_get_timeout_failure_mode, offsetof(Service, timeout_start_failure_mode), SD_BUS_VTABLE_PROPERTY_CONST),
 106         SD_BUS_PROPERTY("TimeoutStopFailureMode", "s", property_get_timeout_failure_mode, offsetof(Service, timeout_stop_failure_mode), SD_BUS_VTABLE_PROPERTY_CONST),
 107         SD_BUS_PROPERTY("RuntimeMaxUSec", "t", bus_property_get_usec, offsetof(Service, runtime_max_usec), SD_BUS_VTABLE_PROPERTY_CONST),
 108         SD_BUS_PROPERTY("WatchdogUSec", "t", property_get_watchdog_usec, 0, 0),
 109         BUS_PROPERTY_DUAL_TIMESTAMP("WatchdogTimestamp", offsetof(Service, watchdog_timestamp), 0),
 110         SD_BUS_PROPERTY("PermissionsStartOnly", "b", bus_property_get_bool, offsetof(Service, permissions_start_only), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN), /* 😷 deprecated */
 111         SD_BUS_PROPERTY("RootDirectoryStartOnly", "b", bus_property_get_bool, offsetof(Service, root_directory_start_only), SD_BUS_VTABLE_PROPERTY_CONST),
 112         SD_BUS_PROPERTY("RemainAfterExit", "b", bus_property_get_bool, offsetof(Service, remain_after_exit), SD_BUS_VTABLE_PROPERTY_CONST),
 113         SD_BUS_PROPERTY("GuessMainPID", "b", bus_property_get_bool, offsetof(Service, guess_main_pid), SD_BUS_VTABLE_PROPERTY_CONST),
 114         SD_BUS_PROPERTY("RestartPreventExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, restart_prevent_status), SD_BUS_VTABLE_PROPERTY_CONST),
 115         SD_BUS_PROPERTY("RestartForceExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, restart_force_status), SD_BUS_VTABLE_PROPERTY_CONST),
 116         SD_BUS_PROPERTY("SuccessExitStatus", "(aiai)", property_get_exit_status_set, offsetof(Service, success_status), SD_BUS_VTABLE_PROPERTY_CONST),
 117         SD_BUS_PROPERTY("MainPID", "u", bus_property_get_pid, offsetof(Service, main_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 118         SD_BUS_PROPERTY("ControlPID", "u", bus_property_get_pid, offsetof(Service, control_pid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 119         SD_BUS_PROPERTY("BusName", "s", NULL, offsetof(Service, bus_name), SD_BUS_VTABLE_PROPERTY_CONST),
 120         SD_BUS_PROPERTY("FileDescriptorStoreMax", "u", bus_property_get_unsigned, offsetof(Service, n_fd_store_max), SD_BUS_VTABLE_PROPERTY_CONST),
 121         SD_BUS_PROPERTY("NFileDescriptorStore", "u", bus_property_get_unsigned, offsetof(Service, n_fd_store), 0),
 122         SD_BUS_PROPERTY("StatusText", "s", NULL, offsetof(Service, status_text), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 123         SD_BUS_PROPERTY("StatusErrno", "i", bus_property_get_int, offsetof(Service, status_errno), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 124         SD_BUS_PROPERTY("Result", "s", property_get_result, offsetof(Service, result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 125         SD_BUS_PROPERTY("ReloadResult", "s", property_get_result, offsetof(Service, reload_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 126         SD_BUS_PROPERTY("CleanResult", "s", property_get_result, offsetof(Service, clean_result), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 127         SD_BUS_PROPERTY("USBFunctionDescriptors", "s", NULL, offsetof(Service, usb_function_descriptors), SD_BUS_VTABLE_PROPERTY_CONST),
 128         SD_BUS_PROPERTY("USBFunctionStrings", "s", NULL, offsetof(Service, usb_function_strings), SD_BUS_VTABLE_PROPERTY_CONST),
 129         SD_BUS_PROPERTY("UID", "u", bus_property_get_uid, offsetof(Unit, ref_uid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 130         SD_BUS_PROPERTY("GID", "u", bus_property_get_gid, offsetof(Unit, ref_gid), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 131         SD_BUS_PROPERTY("NRestarts", "u", bus_property_get_unsigned, offsetof(Service, n_restarts), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 132         SD_BUS_PROPERTY("OOMPolicy", "s", bus_property_get_oom_policy, offsetof(Service, oom_policy), SD_BUS_VTABLE_PROPERTY_CONST),
 133
 134         BUS_EXEC_STATUS_VTABLE("ExecMain", offsetof(Service, main_exec_status), SD_BUS_VTABLE_PROPERTY_EMITS_CHANGE),
 135         BUS_EXEC_COMMAND_LIST_VTABLE("ExecCondition", offsetof(Service, exec_command[SERVICE_EXEC_CONDITION]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 136         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecConditionEx", offsetof(Service, exec_command[SERVICE_EXEC_CONDITION]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 137         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPre", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 138         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartPreEx", offsetof(Service, exec_command[SERVICE_EXEC_START_PRE]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 139         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStart", offsetof(Service, exec_command[SERVICE_EXEC_START]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 140         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartEx", offsetof(Service, exec_command[SERVICE_EXEC_START]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 141         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStartPost", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 142         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStartPostEx", offsetof(Service, exec_command[SERVICE_EXEC_START_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 143         BUS_EXEC_COMMAND_LIST_VTABLE("ExecReload", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 144         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecReloadEx", offsetof(Service, exec_command[SERVICE_EXEC_RELOAD]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 145         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStop", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 146         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStopEx", offsetof(Service, exec_command[SERVICE_EXEC_STOP]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 147         BUS_EXEC_COMMAND_LIST_VTABLE("ExecStopPost", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 148         BUS_EXEC_EX_COMMAND_LIST_VTABLE("ExecStopPostEx", offsetof(Service, exec_command[SERVICE_EXEC_STOP_POST]), SD_BUS_VTABLE_PROPERTY_EMITS_INVALIDATION),
 149
 150         /* The following four are obsolete, and thus marked hidden here. They moved into the Unit interface */
 151         SD_BUS_PROPERTY("StartLimitInterval", "t", bus_property_get_usec, offsetof(Unit, start_ratelimit.interval), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 152         SD_BUS_PROPERTY("StartLimitBurst", "u", bus_property_get_unsigned, offsetof(Unit, start_ratelimit.burst), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 153         SD_BUS_PROPERTY("StartLimitAction", "s", property_get_emergency_action, offsetof(Unit, start_limit_action), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 154         SD_BUS_PROPERTY("FailureAction", "s", property_get_emergency_action, offsetof(Unit, failure_action), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 155         SD_BUS_PROPERTY("RebootArgument", "s", NULL, offsetof(Unit, reboot_arg), SD_BUS_VTABLE_PROPERTY_CONST|SD_BUS_VTABLE_HIDDEN),
 156         SD_BUS_VTABLE_END
 157 };
 158
 159 static int bus_set_transient_exit_status(
 160                 Unit *u,
 161                 const char *name,
 162                 ExitStatusSet *status_set,
 163                 sd_bus_message *message,
 164                 UnitWriteFlags flags,
 165                 sd_bus_error *error) {
 166
 167         const int32_t *status, *signal;
 168         size_t n_status, n_signal, i;
 169         int r;
 170
 171         r = sd_bus_message_enter_container(message, 'r', "aiai");
 172         if (r < 0)
 173                 return r;
 174
 175         r = sd_bus_message_read_array(message, 'i', (const void **) &status, &n_status);
 176         if (r < 0)
 177                 return r;
 178
 179         r = sd_bus_message_read_array(message, 'i', (const void **) &signal, &n_signal);
 180         if (r < 0)
 181                 return r;
 182
 183         r = sd_bus_message_exit_container(message);
 184         if (r < 0)
 185                 return r;
 186
 187         n_status /= sizeof(int32_t);
 188         n_signal /= sizeof(int32_t);
 189
 190         if (n_status == 0 && n_signal == 0 && !UNIT_WRITE_FLAGS_NOOP(flags)) {
 191                 exit_status_set_free(status_set);
 192                 unit_write_settingf(u, flags, name, "%s=", name);
 193                 return 1;
 194         }
 195
 196         for (i = 0; i < n_status; i++) {
 197                 if (status[i] < 0 || status[i] > 255)
 198                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid status code in %s: %"PRIi32, name, status[i]);
 199
 200                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 201                         r = bitmap_set(&status_set->status, status[i]);
 202                         if (r < 0)
 203                                 return r;
 204
 205                         unit_write_settingf(u, flags, name, "%s=%"PRIi32, name, status[i]);
 206                 }
 207         }
 208
 209         for (i = 0; i < n_signal; i++) {
 210                 const char *str;
 211
 212                 str = signal_to_string((int) signal[i]);
 213                 if (!str)
 214                         return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "Invalid signal in %s: %"PRIi32, name, signal[i]);
 215
 216                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 217                         r = bitmap_set(&status_set->signal, signal[i]);
 218                         if (r < 0)
 219                                 return r;
 220
 221                         unit_write_settingf(u, flags, name, "%s=%s", name, str);
 222                 }
 223         }
 224
 225         return 1;
 226 }
 227
 228 static int bus_set_transient_std_fd(
 229                 Unit *u,
 230                 const char *name,
 231                 int *p,
 232                 bool *b,
 233                 sd_bus_message *message,
 234                 UnitWriteFlags flags,
 235                 sd_bus_error *error) {
 236
 237         int fd, r;
 238
 239         assert(p);
 240         assert(b);
 241
 242         r = sd_bus_message_read(message, "h", &fd);
 243         if (r < 0)
 244                 return r;
 245
 246         if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 247                 int copy;
 248
 249                 copy = fcntl(fd, F_DUPFD_CLOEXEC, 3);
 250                 if (copy < 0)
 251                         return -errno;
 252
 253                 asynchronous_close(*p);
 254                 *p = copy;
 255                 *b = true;
 256         }
 257
 258         return 1;
 259 }
 260 static BUS_DEFINE_SET_TRANSIENT_PARSE(notify_access, NotifyAccess, notify_access_from_string);
 261 static BUS_DEFINE_SET_TRANSIENT_PARSE(service_type, ServiceType, service_type_from_string);
 262 static BUS_DEFINE_SET_TRANSIENT_PARSE(service_restart, ServiceRestart, service_restart_from_string);
 263 static BUS_DEFINE_SET_TRANSIENT_PARSE(oom_policy, OOMPolicy, oom_policy_from_string);
 264 static BUS_DEFINE_SET_TRANSIENT_STRING_WITH_CHECK(bus_name, sd_bus_service_name_is_valid);
 265 static BUS_DEFINE_SET_TRANSIENT_PARSE(timeout_failure_mode, ServiceTimeoutFailureMode, service_timeout_failure_mode_from_string);
 266
 267 static int bus_service_set_transient_property(
 268                 Service *s,
 269                 const char *name,
 270                 sd_bus_message *message,
 271                 UnitWriteFlags flags,
 272                 sd_bus_error *error) {
 273
 274         Unit *u = UNIT(s);
 275         ServiceExecCommand ci;
 276         int r;
 277
 278         assert(s);
 279         assert(name);
 280         assert(message);
 281
 282         flags |= UNIT_PRIVATE;
 283
 284         if (streq(name, "PermissionsStartOnly"))
 285                 return bus_set_transient_bool(u, name, &s->permissions_start_only, message, flags, error);
 286
 287         if (streq(name, "RootDirectoryStartOnly"))
 288                 return bus_set_transient_bool(u, name, &s->root_directory_start_only, message, flags, error);
 289
 290         if (streq(name, "RemainAfterExit"))
 291                 return bus_set_transient_bool(u, name, &s->remain_after_exit, message, flags, error);
 292
 293         if (streq(name, "GuessMainPID"))
 294                 return bus_set_transient_bool(u, name, &s->guess_main_pid, message, flags, error);
 295
 296         if (streq(name, "Type"))
 297                 return bus_set_transient_service_type(u, name, &s->type, message, flags, error);
 298
 299         if (streq(name, "OOMPolicy"))
 300                 return bus_set_transient_oom_policy(u, name, &s->oom_policy, message, flags, error);
 301
 302         if (streq(name, "RestartUSec"))
 303                 return bus_set_transient_usec(u, name, &s->restart_usec, message, flags, error);
 304
 305         if (streq(name, "TimeoutStartUSec")) {
 306                 r = bus_set_transient_usec(u, name, &s->timeout_start_usec, message, flags, error);
 307                 if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags))
 308                         s->start_timeout_defined = true;
 309
 310                 return r;
 311         }
 312
 313         if (streq(name, "TimeoutStopUSec"))
 314                 return bus_set_transient_usec(u, name, &s->timeout_stop_usec, message, flags, error);
 315
 316         if (streq(name, "TimeoutAbortUSec")) {
 317                 r = bus_set_transient_usec(u, name, &s->timeout_abort_usec, message, flags, error);
 318                 if (r >= 0 && !UNIT_WRITE_FLAGS_NOOP(flags))
 319                         s->timeout_abort_set = true;
 320                 return r;
 321         }
 322
 323         if (streq(name, "TimeoutStartFailureMode"))
 324                 return bus_set_transient_timeout_failure_mode(u, name, &s->timeout_start_failure_mode, message, flags, error);
 325
 326         if (streq(name, "TimeoutStopFailureMode"))
 327                 return bus_set_transient_timeout_failure_mode(u, name, &s->timeout_stop_failure_mode, message, flags, error);
 328
 329         if (streq(name, "RuntimeMaxUSec"))
 330                 return bus_set_transient_usec(u, name, &s->runtime_max_usec, message, flags, error);
 331
 332         if (streq(name, "WatchdogUSec"))
 333                 return bus_set_transient_usec(u, name, &s->watchdog_usec, message, flags, error);
 334
 335         if (streq(name, "FileDescriptorStoreMax"))
 336                 return bus_set_transient_unsigned(u, name, &s->n_fd_store_max, message, flags, error);
 337
 338         if (streq(name, "NotifyAccess"))
 339                 return bus_set_transient_notify_access(u, name, &s->notify_access, message, flags, error);
 340
 341         if (streq(name, "PIDFile")) {
 342                 _cleanup_free_ char *n = NULL;
 343                 const char *v, *e;
 344
 345                 r = sd_bus_message_read(message, "s", &v);
 346                 if (r < 0)
 347                         return r;
 348
 349                 if (!isempty(v)) {
 350                         n = path_make_absolute(v, u->manager->prefix[EXEC_DIRECTORY_RUNTIME]);
 351                         if (!n)
 352                                 return -ENOMEM;
 353
 354                         path_simplify(n, true);
 355
 356                         if (!path_is_normalized(n))
 357                                 return sd_bus_error_setf(error, SD_BUS_ERROR_INVALID_ARGS, "PIDFile= path '%s' is not valid", n);
 358
 359                         e = path_startswith(n, "/var/run/");
 360                         if (e) {
 361                                 char *z;
 362
 363                                 z = path_join("/run", e);
 364                                 if (!z)
 365                                         return log_oom();
 366
 367                                 if (!UNIT_WRITE_FLAGS_NOOP(flags))
 368                                         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);
 369
 370                                 free_and_replace(n, z);
 371                         }
 372                 }
 373
 374                 if (!UNIT_WRITE_FLAGS_NOOP(flags)) {
 375                         free_and_replace(s->pid_file, n);
 376                         unit_write_settingf(u, flags, name, "%s=%s", name, strempty(s->pid_file));
 377                 }
 378
 379                 return 1;
 380         }
 381
 382         if (streq(name, "USBFunctionDescriptors"))
 383                 return bus_set_transient_path(u, name, &s->usb_function_descriptors, message, flags, error);
 384
 385         if (streq(name, "USBFunctionStrings"))
 386                 return bus_set_transient_path(u, name, &s->usb_function_strings, message, flags, error);
 387
 388         if (streq(name, "BusName"))
 389                 return bus_set_transient_bus_name(u, name, &s->bus_name, message, flags, error);
 390
 391         if (streq(name, "Restart"))
 392                 return bus_set_transient_service_restart(u, name, &s->restart, message, flags, error);
 393
 394         if (streq(name, "RestartPreventExitStatus"))
 395                 return bus_set_transient_exit_status(u, name, &s->restart_prevent_status, message, flags, error);
 396
 397         if (streq(name, "RestartForceExitStatus"))
 398                 return bus_set_transient_exit_status(u, name, &s->restart_force_status, message, flags, error);
 399
 400         if (streq(name, "SuccessExitStatus"))
 401                 return bus_set_transient_exit_status(u, name, &s->success_status, message, flags, error);
 402
 403         ci = service_exec_command_from_string(name);
 404         ci = (ci >= 0) ? ci : service_exec_ex_command_from_string(name);
 405         if (ci >= 0)
 406                 return bus_set_transient_exec_command(u, name, &s->exec_command[ci], message, flags, error);
 407
 408         if (streq(name, "StandardInputFileDescriptor"))
 409                 return bus_set_transient_std_fd(u, name, &s->stdin_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 410
 411         if (streq(name, "StandardOutputFileDescriptor"))
 412                 return bus_set_transient_std_fd(u, name, &s->stdout_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 413
 414         if (streq(name, "StandardErrorFileDescriptor"))
 415                 return bus_set_transient_std_fd(u, name, &s->stderr_fd, &s->exec_context.stdio_as_fds, message, flags, error);
 416
 417         return 0;
 418 }
 419
 420 int bus_service_set_property(
 421                 Unit *u,
 422                 const char *name,
 423                 sd_bus_message *message,
 424                 UnitWriteFlags flags,
 425                 sd_bus_error *error) {
 426
 427         Service *s = SERVICE(u);
 428         int r;
 429
 430         assert(s);
 431         assert(name);
 432         assert(message);
 433
 434         r = bus_cgroup_set_property(u, &s->cgroup_context, name, message, flags, error);
 435         if (r != 0)
 436                 return r;
 437
 438         if (u->transient && u->load_state == UNIT_STUB) {
 439                 /* This is a transient unit, let's load a little more */
 440
 441                 r = bus_service_set_transient_property(s, name, message, flags, error);
 442                 if (r != 0)
 443                         return r;
 444
 445                 r = bus_exec_context_set_transient_property(u, &s->exec_context, name, message, flags, error);
 446                 if (r != 0)
 447                         return r;
 448
 449                 r = bus_kill_context_set_transient_property(u, &s->kill_context, name, message, flags, error);
 450                 if (r != 0)
 451                         return r;
 452         }
 453
 454         return 0;
 455 }
 456
 457 int bus_service_commit_properties(Unit *u) {
 458         assert(u);
 459
 460         unit_invalidate_cgroup_members_masks(u);
 461         unit_realize_cgroup(u);
 462
 463         return 0;
 464 }