src/dbus-manager.c

   1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
   2
   3 /***
   4   This file is part of systemd.
   5
   6   Copyright 2010 Lennart Poettering
   7
   8   systemd is free software; you can redistribute it and/or modify it
   9   under the terms of the GNU General Public License as published by
  10   the Free Software Foundation; either version 2 of the License, or
  11   (at your option) any later version.
  12
  13   systemd is distributed in the hope that it will be useful, but
  14   WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  16   General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with systemd; If not, see <http://www.gnu.org/licenses/>.
  20 ***/
  21
  22 #include <errno.h>
  23
  24 #include "dbus.h"
  25 #include "log.h"
  26 #include "dbus-manager.h"
  27 #include "strv.h"
  28 #include "bus-errors.h"
  29
  30 #define BUS_MANAGER_INTERFACE_BEGIN                                     \
  31         " <interface name=\"org.freedesktop.systemd1.Manager\">\n"
  32
  33 #define BUS_MANAGER_INTERFACE_METHODS                                   \
  34         "  <method name=\"GetUnit\">\n"                                 \
  35         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  36         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  37         "  </method>\n"                                                 \
  38         "  <method name=\"GetUnitByPID\">\n"                            \
  39         "   <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n"          \
  40         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  41         "  </method>\n"                                                 \
  42         "  <method name=\"LoadUnit\">\n"                                \
  43         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  44         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  45         "  </method>\n"                                                 \
  46         "  <method name=\"StartUnit\">\n"                               \
  47         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  48         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  49         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  50         "  </method>\n"                                                 \
  51         "  <method name=\"StartUnitReplace\">\n"                        \
  52         "   <arg name=\"old_unit\" type=\"s\" direction=\"in\"/>\n"     \
  53         "   <arg name=\"new_unit\" type=\"s\" direction=\"in\"/>\n"     \
  54         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  55         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  56         "  </method>\n"                                                 \
  57         "  <method name=\"StopUnit\">\n"                                \
  58         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  59         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  60         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  61         "  </method>\n"                                                 \
  62         "  <method name=\"ReloadUnit\">\n"                              \
  63         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  64         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  65         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  66         "  </method>\n"                                                 \
  67         "  <method name=\"RestartUnit\">\n"                             \
  68         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  69         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  70         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  71         "  </method>\n"                                                 \
  72         "  <method name=\"TryRestartUnit\">\n"                          \
  73         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  74         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  75         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  76         "  </method>\n"                                                 \
  77         "  <method name=\"ReloadOrRestartUnit\">\n"                     \
  78         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  79         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  80         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  81         "  </method>\n"                                                 \
  82         "  <method name=\"ReloadOrTryRestartUnit\">\n"                  \
  83         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  84         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  85         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  86         "  </method>\n"                                                 \
  87         "  <method name=\"KillUnit\">\n"                                \
  88         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  89         "   <arg name=\"who\" type=\"s\" direction=\"in\"/>\n"          \
  90         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  91         "   <arg name=\"signal\" type=\"i\" direction=\"in\"/>\n"       \
  92         "  </method>\n"                                                 \
  93         "  <method name=\"ResetFailedUnit\">\n"                         \
  94         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  95         "  </method>\n"                                                 \
  96         "  <method name=\"GetJob\">\n"                                  \
  97         "   <arg name=\"id\" type=\"u\" direction=\"in\"/>\n"           \
  98         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  99         "  </method>\n"                                                 \
 100         "  <method name=\"ClearJobs\"/>\n"                              \
 101         "  <method name=\"ResetFailed\"/>\n"                            \
 102         "  <method name=\"ListUnits\">\n"                               \
 103         "   <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
 104         "  </method>\n"                                                 \
 105         "  <method name=\"ListJobs\">\n"                                \
 106         "   <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
 107         "  </method>\n"                                                 \
 108         "  <method name=\"Subscribe\"/>\n"                              \
 109         "  <method name=\"Unsubscribe\"/>\n"                            \
 110         "  <method name=\"Dump\"/>\n"                                   \
 111         "  <method name=\"CreateSnapshot\">\n"                          \
 112         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
 113         "   <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n"      \
 114         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
 115         "  </method>\n"                                                 \
 116         "  <method name=\"Reload\"/>\n"                                 \
 117         "  <method name=\"Reexecute\"/>\n"                              \
 118         "  <method name=\"Exit\"/>\n"                                   \
 119         "  <method name=\"Reboot\"/>\n"                                 \
 120         "  <method name=\"PowerOff\"/>\n"                               \
 121         "  <method name=\"Halt\"/>\n"                                   \
 122         "  <method name=\"KExec\"/>\n"                                  \
 123         "  <method name=\"SetEnvironment\">\n"                          \
 124         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 125         "  </method>\n"                                                 \
 126         "  <method name=\"UnsetEnvironment\">\n"                        \
 127         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 128         "  </method>\n"
 129
 130 #define BUS_MANAGER_INTERFACE_SIGNALS                                   \
 131         "  <signal name=\"UnitNew\">\n"                                 \
 132         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 133         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 134         "  </signal>\n"                                                 \
 135         "  <signal name=\"UnitRemoved\">\n"                             \
 136         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 137         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 138         "  </signal>\n"                                                 \
 139         "  <signal name=\"JobNew\">\n"                                  \
 140         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 141         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 142         "  </signal>\n"                                                 \
 143         "  <signal name=\"JobRemoved\">\n"                              \
 144         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 145         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 146         "   <arg name=\"success\" type=\"b\"/>\n"                       \
 147         "  </signal>"
 148
 149
 150 #define BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 151         "  <property name=\"Version\" type=\"s\" access=\"read\"/>\n"   \
 152         "  <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
 153         "  <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
 154         "  <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n"  \
 155         "  <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
 156         "  <property name=\"NNames\" type=\"u\" access=\"read\"/>\n"    \
 157         "  <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n"     \
 158         "  <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
 159         "  <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
 160         "  <property name=\"Progress\" type=\"d\" access=\"read\"/>\n"  \
 161         "  <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
 162         "  <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
 163         "  <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
 164         "  <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
 165         "  <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
 166         "  <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
 167         "  <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
 168         "  <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n"
 169
 170 #ifdef HAVE_SYSV_COMPAT
 171 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 172         "  <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
 173         "  <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
 174         "  <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
 175 #else
 176 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
 177 #endif
 178
 179 #define BUS_MANAGER_INTERFACE_END                                       \
 180         " </interface>\n"
 181
 182 #define BUS_MANAGER_INTERFACE                                           \
 183         BUS_MANAGER_INTERFACE_BEGIN                                     \
 184         BUS_MANAGER_INTERFACE_METHODS                                   \
 185         BUS_MANAGER_INTERFACE_SIGNALS                                   \
 186         BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 187         BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 188         BUS_MANAGER_INTERFACE_END
 189
 190 #define INTROSPECTION_BEGIN                                             \
 191         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
 192         "<node>\n"                                                      \
 193         BUS_MANAGER_INTERFACE                                           \
 194         BUS_PROPERTIES_INTERFACE                                        \
 195         BUS_PEER_INTERFACE                                              \
 196         BUS_INTROSPECTABLE_INTERFACE
 197
 198 #define INTROSPECTION_END                                               \
 199         "</node>\n"
 200
 201 const char bus_manager_interface[] = BUS_MANAGER_INTERFACE;
 202
 203 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
 204
 205 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 206         const char *t;
 207
 208         assert(m);
 209         assert(i);
 210         assert(property);
 211
 212         t = log_target_to_string(log_get_target());
 213
 214         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 215                 return -ENOMEM;
 216
 217         return 0;
 218 }
 219
 220 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 221         const char *t;
 222
 223         assert(m);
 224         assert(i);
 225         assert(property);
 226
 227         t = log_level_to_string(log_get_max_level());
 228
 229         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 230                 return -ENOMEM;
 231
 232         return 0;
 233 }
 234
 235 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 236         uint32_t u;
 237
 238         assert(m);
 239         assert(i);
 240         assert(property);
 241
 242         u = hashmap_size(m->units);
 243
 244         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 245                 return -ENOMEM;
 246
 247         return 0;
 248 }
 249
 250 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 251         uint32_t u;
 252
 253         assert(m);
 254         assert(i);
 255         assert(property);
 256
 257         u = hashmap_size(m->jobs);
 258
 259         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 260                 return -ENOMEM;
 261
 262         return 0;
 263 }
 264
 265 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 266         double d;
 267
 268         assert(m);
 269         assert(i);
 270         assert(property);
 271
 272         if (dual_timestamp_is_set(&m->finish_timestamp))
 273                 d = 1.0;
 274         else
 275                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 276
 277         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
 278                 return -ENOMEM;
 279
 280         return 0;
 281 }
 282
 283 static const char *message_get_sender_with_fallback(DBusMessage *m) {
 284         const char *s;
 285
 286         assert(m);
 287
 288         if ((s = dbus_message_get_sender(m)))
 289                 return s;
 290
 291         /* When the message came in from a direct connection the
 292          * message will have no sender. We fix that here. */
 293
 294         return ":no-sender";
 295 }
 296
 297 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
 298         Manager *m = data;
 299
 300         const BusProperty properties[] = {
 301                 { "org.freedesktop.systemd1.Manager", "Version",       bus_property_append_string,    "s",  PACKAGE_STRING     },
 302                 { "org.freedesktop.systemd1.Manager", "RunningAs",     bus_manager_append_running_as, "s",  &m->running_as     },
 303                 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t",  &m->startup_timestamp.realtime },
 304                 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64,  "t",  &m->finish_timestamp.realtime },
 305                 { "org.freedesktop.systemd1.Manager", "LogLevel",      bus_manager_append_log_level,  "s",  NULL               },
 306                 { "org.freedesktop.systemd1.Manager", "LogTarget",     bus_manager_append_log_target, "s",  NULL               },
 307                 { "org.freedesktop.systemd1.Manager", "NNames",        bus_manager_append_n_names,    "u",  NULL               },
 308                 { "org.freedesktop.systemd1.Manager", "NJobs",         bus_manager_append_n_jobs,     "u",  NULL               },
 309                 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32,    "u",  &m->n_installed_jobs },
 310                 { "org.freedesktop.systemd1.Manager", "NFailedJobs",   bus_property_append_uint32,    "u",  &m->n_failed_jobs  },
 311                 { "org.freedesktop.systemd1.Manager", "Progress",      bus_manager_append_progress,   "d",  NULL               },
 312                 { "org.freedesktop.systemd1.Manager", "Environment",   bus_property_append_strv,      "as", m->environment     },
 313                 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn",  bus_property_append_bool,      "b",  &m->confirm_spawn  },
 314                 { "org.freedesktop.systemd1.Manager", "ShowStatus",    bus_property_append_bool,      "b",  &m->show_status    },
 315                 { "org.freedesktop.systemd1.Manager", "UnitPath",      bus_property_append_strv,      "as", m->lookup_paths.unit_path },
 316                 { "org.freedesktop.systemd1.Manager", "NotifySocket",  bus_property_append_string,    "s",  m->notify_socket   },
 317                 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
 318                 { "org.freedesktop.systemd1.Manager", "MountAuto",     bus_property_append_bool,      "b",  &m->mount_auto     },
 319                 { "org.freedesktop.systemd1.Manager", "SwapAuto",      bus_property_append_bool,      "b",  &m->swap_auto     },
 320 #ifdef HAVE_SYSV_COMPAT
 321                 { "org.freedesktop.systemd1.Manager", "SysVConsole",   bus_property_append_bool,      "b",  &m->sysv_console   },
 322                 { "org.freedesktop.systemd1.Manager", "SysVInitPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvinit_path },
 323                 { "org.freedesktop.systemd1.Manager", "SysVRcndPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvrcnd_path },
 324 #endif
 325                 { NULL, NULL, NULL, NULL, NULL }
 326         };
 327
 328         int r;
 329         DBusError error;
 330         DBusMessage *reply = NULL;
 331         char * path = NULL;
 332         JobType job_type = _JOB_TYPE_INVALID;
 333         bool reload_if_possible = false;
 334
 335         assert(connection);
 336         assert(message);
 337         assert(m);
 338
 339         dbus_error_init(&error);
 340
 341         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
 342                 const char *name;
 343                 Unit *u;
 344
 345                 if (!dbus_message_get_args(
 346                                     message,
 347                                     &error,
 348                                     DBUS_TYPE_STRING, &name,
 349                                     DBUS_TYPE_INVALID))
 350                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 351
 352                 if (!(u = manager_get_unit(m, name))) {
 353                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 354                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 355                 }
 356
 357                 if (!(reply = dbus_message_new_method_return(message)))
 358                         goto oom;
 359
 360                 if (!(path = unit_dbus_path(u)))
 361                         goto oom;
 362
 363                 if (!dbus_message_append_args(
 364                                     reply,
 365                                     DBUS_TYPE_OBJECT_PATH, &path,
 366                                     DBUS_TYPE_INVALID))
 367                         goto oom;
 368         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
 369                 Unit *u;
 370                 uint32_t pid;
 371
 372                 if (!dbus_message_get_args(
 373                                     message,
 374                                     &error,
 375                                     DBUS_TYPE_UINT32, &pid,
 376                                     DBUS_TYPE_INVALID))
 377                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 378
 379                 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
 380                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
 381                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 382                 }
 383
 384                 if (!(reply = dbus_message_new_method_return(message)))
 385                         goto oom;
 386
 387                 if (!(path = unit_dbus_path(u)))
 388                         goto oom;
 389
 390                 if (!dbus_message_append_args(
 391                                     reply,
 392                                     DBUS_TYPE_OBJECT_PATH, &path,
 393                                     DBUS_TYPE_INVALID))
 394                         goto oom;
 395         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
 396                 const char *name;
 397                 Unit *u;
 398
 399                 if (!dbus_message_get_args(
 400                                     message,
 401                                     &error,
 402                                     DBUS_TYPE_STRING, &name,
 403                                     DBUS_TYPE_INVALID))
 404                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 405
 406                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
 407                         return bus_send_error_reply(m, connection, message, &error, r);
 408
 409                 if (!(reply = dbus_message_new_method_return(message)))
 410                         goto oom;
 411
 412                 if (!(path = unit_dbus_path(u)))
 413                         goto oom;
 414
 415                 if (!dbus_message_append_args(
 416                                     reply,
 417                                     DBUS_TYPE_OBJECT_PATH, &path,
 418                                     DBUS_TYPE_INVALID))
 419                         goto oom;
 420
 421         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
 422                 job_type = JOB_START;
 423         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 424                 job_type = JOB_START;
 425         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
 426                 job_type = JOB_STOP;
 427         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
 428                 job_type = JOB_RELOAD;
 429         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
 430                 job_type = JOB_RESTART;
 431         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
 432                 job_type = JOB_TRY_RESTART;
 433         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
 434                 reload_if_possible = true;
 435                 job_type = JOB_RESTART;
 436         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
 437                 reload_if_possible = true;
 438                 job_type = JOB_TRY_RESTART;
 439         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
 440                 const char *name, *swho, *smode;
 441                 int32_t signo;
 442                 Unit *u;
 443                 KillMode mode;
 444                 KillWho who;
 445
 446                 if (!dbus_message_get_args(
 447                                     message,
 448                                     &error,
 449                                     DBUS_TYPE_STRING, &name,
 450                                     DBUS_TYPE_STRING, &swho,
 451                                     DBUS_TYPE_STRING, &smode,
 452                                     DBUS_TYPE_INT32, &signo,
 453                                     DBUS_TYPE_INVALID))
 454                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 455
 456                 if ((mode = kill_mode_from_string(smode)) < 0 ||
 457                     (who = kill_who_from_string(swho)) < 0 ||
 458                     signo <= 0 ||
 459                     signo >= _NSIG)
 460                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 461
 462                 if (!(u = manager_get_unit(m, name))) {
 463                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 464                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 465                 }
 466
 467                 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
 468                         return bus_send_error_reply(m, connection, message, &error, r);
 469
 470                 if (!(reply = dbus_message_new_method_return(message)))
 471                         goto oom;
 472
 473         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
 474                 uint32_t id;
 475                 Job *j;
 476
 477                 if (!dbus_message_get_args(
 478                                     message,
 479                                     &error,
 480                                     DBUS_TYPE_UINT32, &id,
 481                                     DBUS_TYPE_INVALID))
 482                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 483
 484                 if (!(j = manager_get_job(m, id))) {
 485                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
 486                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 487                 }
 488
 489                 if (!(reply = dbus_message_new_method_return(message)))
 490                         goto oom;
 491
 492                 if (!(path = job_dbus_path(j)))
 493                         goto oom;
 494
 495                 if (!dbus_message_append_args(
 496                                     reply,
 497                                     DBUS_TYPE_OBJECT_PATH, &path,
 498                                     DBUS_TYPE_INVALID))
 499                         goto oom;
 500
 501         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
 502
 503                 manager_clear_jobs(m);
 504
 505                 if (!(reply = dbus_message_new_method_return(message)))
 506                         goto oom;
 507
 508         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
 509
 510                 manager_reset_failed(m);
 511
 512                 if (!(reply = dbus_message_new_method_return(message)))
 513                         goto oom;
 514
 515         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
 516                 const char *name;
 517                 Unit *u;
 518
 519                 if (!dbus_message_get_args(
 520                                     message,
 521                                     &error,
 522                                     DBUS_TYPE_STRING, &name,
 523                                     DBUS_TYPE_INVALID))
 524                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 525
 526                 if (!(u = manager_get_unit(m, name))) {
 527                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 528                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 529                 }
 530
 531                 unit_reset_failed(u);
 532
 533                 if (!(reply = dbus_message_new_method_return(message)))
 534                         goto oom;
 535
 536         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
 537                 DBusMessageIter iter, sub;
 538                 Iterator i;
 539                 Unit *u;
 540                 const char *k;
 541
 542                 if (!(reply = dbus_message_new_method_return(message)))
 543                         goto oom;
 544
 545                 dbus_message_iter_init_append(reply, &iter);
 546
 547                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
 548                         goto oom;
 549
 550                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 551                         char *u_path, *j_path;
 552                         const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
 553                         DBusMessageIter sub2;
 554                         uint32_t job_id;
 555                         Unit *f;
 556
 557                         if (k != u->meta.id)
 558                                 continue;
 559
 560                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 561                                 goto oom;
 562
 563                         description = unit_description(u);
 564                         load_state = unit_load_state_to_string(u->meta.load_state);
 565                         active_state = unit_active_state_to_string(unit_active_state(u));
 566                         sub_state = unit_sub_state_to_string(u);
 567
 568                         f = unit_following(u);
 569                         following = f ? f->meta.id : "";
 570
 571                         if (!(u_path = unit_dbus_path(u)))
 572                                 goto oom;
 573
 574                         if (u->meta.job) {
 575                                 job_id = (uint32_t) u->meta.job->id;
 576
 577                                 if (!(j_path = job_dbus_path(u->meta.job))) {
 578                                         free(u_path);
 579                                         goto oom;
 580                                 }
 581
 582                                 sjob_type = job_type_to_string(u->meta.job->type);
 583                         } else {
 584                                 job_id = 0;
 585                                 j_path = u_path;
 586                                 sjob_type = "";
 587                         }
 588
 589                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
 590                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
 591                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
 592                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
 593                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
 594                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
 595                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
 596                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
 597                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
 598                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
 599                                 free(u_path);
 600                                 if (u->meta.job)
 601                                         free(j_path);
 602                                 goto oom;
 603                         }
 604
 605                         free(u_path);
 606                         if (u->meta.job)
 607                                 free(j_path);
 608
 609                         if (!dbus_message_iter_close_container(&sub, &sub2))
 610                                 goto oom;
 611                 }
 612
 613                 if (!dbus_message_iter_close_container(&iter, &sub))
 614                         goto oom;
 615
 616         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
 617                 DBusMessageIter iter, sub;
 618                 Iterator i;
 619                 Job *j;
 620
 621                 if (!(reply = dbus_message_new_method_return(message)))
 622                         goto oom;
 623
 624                 dbus_message_iter_init_append(reply, &iter);
 625
 626                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
 627                         goto oom;
 628
 629                 HASHMAP_FOREACH(j, m->jobs, i) {
 630                         char *u_path, *j_path;
 631                         const char *state, *type;
 632                         uint32_t id;
 633                         DBusMessageIter sub2;
 634
 635                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 636                                 goto oom;
 637
 638                         id = (uint32_t) j->id;
 639                         state = job_state_to_string(j->state);
 640                         type = job_type_to_string(j->type);
 641
 642                         if (!(j_path = job_dbus_path(j)))
 643                                 goto oom;
 644
 645                         if (!(u_path = unit_dbus_path(j->unit))) {
 646                                 free(j_path);
 647                                 goto oom;
 648                         }
 649
 650                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
 651                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
 652                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
 653                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
 654                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
 655                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
 656                                 free(j_path);
 657                                 free(u_path);
 658                                 goto oom;
 659                         }
 660
 661                         free(j_path);
 662                         free(u_path);
 663
 664                         if (!dbus_message_iter_close_container(&sub, &sub2))
 665                                 goto oom;
 666                 }
 667
 668                 if (!dbus_message_iter_close_container(&iter, &sub))
 669                         goto oom;
 670
 671         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
 672                 char *client;
 673                 Set *s;
 674
 675                 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
 676                         if (!(s = set_new(string_hash_func, string_compare_func)))
 677                                 goto oom;
 678
 679                         if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
 680                                 set_free(s);
 681                                 goto oom;
 682                         }
 683                 }
 684
 685                 if (!(client = strdup(message_get_sender_with_fallback(message))))
 686                         goto oom;
 687
 688                 if ((r = set_put(s, client)) < 0) {
 689                         free(client);
 690                         return bus_send_error_reply(m, connection, message, NULL, r);
 691                 }
 692
 693                 if (!(reply = dbus_message_new_method_return(message)))
 694                         goto oom;
 695
 696         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
 697                 char *client;
 698
 699                 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
 700                         dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
 701                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 702                 }
 703
 704                 free(client);
 705
 706                 if (!(reply = dbus_message_new_method_return(message)))
 707                         goto oom;
 708
 709         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
 710                 FILE *f;
 711                 char *dump = NULL;
 712                 size_t size;
 713
 714                 if (!(reply = dbus_message_new_method_return(message)))
 715                         goto oom;
 716
 717                 if (!(f = open_memstream(&dump, &size)))
 718                         goto oom;
 719
 720                 manager_dump_units(m, f, NULL);
 721                 manager_dump_jobs(m, f, NULL);
 722
 723                 if (ferror(f)) {
 724                         fclose(f);
 725                         free(dump);
 726                         goto oom;
 727                 }
 728
 729                 fclose(f);
 730
 731                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
 732                         free(dump);
 733                         goto oom;
 734                 }
 735
 736                 free(dump);
 737         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
 738                 const char *name;
 739                 dbus_bool_t cleanup;
 740                 Snapshot *s;
 741
 742                 if (!dbus_message_get_args(
 743                                     message,
 744                                     &error,
 745                                     DBUS_TYPE_STRING, &name,
 746                                     DBUS_TYPE_BOOLEAN, &cleanup,
 747                                     DBUS_TYPE_INVALID))
 748                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 749
 750                 if (name && name[0] == 0)
 751                         name = NULL;
 752
 753                 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
 754                         return bus_send_error_reply(m, connection, message, &error, r);
 755
 756                 if (!(reply = dbus_message_new_method_return(message)))
 757                         goto oom;
 758
 759                 if (!(path = unit_dbus_path(UNIT(s))))
 760                         goto oom;
 761
 762                 if (!dbus_message_append_args(
 763                                     reply,
 764                                     DBUS_TYPE_OBJECT_PATH, &path,
 765                                     DBUS_TYPE_INVALID))
 766                         goto oom;
 767
 768         } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
 769                 char *introspection = NULL;
 770                 FILE *f;
 771                 Iterator i;
 772                 Unit *u;
 773                 Job *j;
 774                 const char *k;
 775                 size_t size;
 776
 777                 if (!(reply = dbus_message_new_method_return(message)))
 778                         goto oom;
 779
 780                 /* We roll our own introspection code here, instead of
 781                  * relying on bus_default_message_handler() because we
 782                  * need to generate our introspection string
 783                  * dynamically. */
 784
 785                 if (!(f = open_memstream(&introspection, &size)))
 786                         goto oom;
 787
 788                 fputs(INTROSPECTION_BEGIN, f);
 789
 790                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 791                         char *p;
 792
 793                         if (k != u->meta.id)
 794                                 continue;
 795
 796                         if (!(p = bus_path_escape(k))) {
 797                                 fclose(f);
 798                                 free(introspection);
 799                                 goto oom;
 800                         }
 801
 802                         fprintf(f, "<node name=\"unit/%s\"/>", p);
 803                         free(p);
 804                 }
 805
 806                 HASHMAP_FOREACH(j, m->jobs, i)
 807                         fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
 808
 809                 fputs(INTROSPECTION_END, f);
 810
 811                 if (ferror(f)) {
 812                         fclose(f);
 813                         free(introspection);
 814                         goto oom;
 815                 }
 816
 817                 fclose(f);
 818
 819                 if (!introspection)
 820                         goto oom;
 821
 822                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
 823                         free(introspection);
 824                         goto oom;
 825                 }
 826
 827                 free(introspection);
 828
 829         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
 830
 831                 assert(!m->queued_message);
 832
 833                 /* Instead of sending the reply back right away, we
 834                  * just remember that we need to and then send it
 835                  * after the reload is finished. That way the caller
 836                  * knows when the reload finished. */
 837
 838                 if (!(m->queued_message = dbus_message_new_method_return(message)))
 839                         goto oom;
 840
 841                 m->queued_message_connection = connection;
 842                 m->exit_code = MANAGER_RELOAD;
 843
 844         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
 845
 846                 if (!(reply = dbus_message_new_method_return(message)))
 847                         goto oom;
 848
 849                 m->exit_code = MANAGER_REEXECUTE;
 850
 851         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
 852
 853                 if (m->running_as == MANAGER_SYSTEM) {
 854                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for session managers.");
 855                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 856                 }
 857
 858                 if (!(reply = dbus_message_new_method_return(message)))
 859                         goto oom;
 860
 861                 m->exit_code = MANAGER_EXIT;
 862
 863         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
 864
 865                 if (m->running_as != MANAGER_SYSTEM) {
 866                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
 867                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 868                 }
 869
 870                 if (!(reply = dbus_message_new_method_return(message)))
 871                         goto oom;
 872
 873                 m->exit_code = MANAGER_REBOOT;
 874
 875         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
 876
 877                 if (m->running_as != MANAGER_SYSTEM) {
 878                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
 879                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 880                 }
 881
 882                 if (!(reply = dbus_message_new_method_return(message)))
 883                         goto oom;
 884
 885                 m->exit_code = MANAGER_POWEROFF;
 886
 887         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
 888
 889                 if (m->running_as != MANAGER_SYSTEM) {
 890                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
 891                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 892                 }
 893
 894                 if (!(reply = dbus_message_new_method_return(message)))
 895                         goto oom;
 896
 897                 m->exit_code = MANAGER_HALT;
 898
 899         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
 900
 901                 if (m->running_as != MANAGER_SYSTEM) {
 902                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
 903                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 904                 }
 905
 906                 if (!(reply = dbus_message_new_method_return(message)))
 907                         goto oom;
 908
 909                 m->exit_code = MANAGER_KEXEC;
 910
 911         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
 912                 char **l = NULL, **e = NULL;
 913
 914                 if ((r = bus_parse_strv(message, &l)) < 0) {
 915                         if (r == -ENOMEM)
 916                                 goto oom;
 917
 918                         return bus_send_error_reply(m, connection, message, NULL, r);
 919                 }
 920
 921                 e = strv_env_merge(2, m->environment, l);
 922                 strv_free(l);
 923
 924                 if (!e)
 925                         goto oom;
 926
 927                 if (!(reply = dbus_message_new_method_return(message))) {
 928                         strv_free(e);
 929                         goto oom;
 930                 }
 931
 932                 strv_free(m->environment);
 933                 m->environment = e;
 934
 935         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
 936                 char **l = NULL, **e = NULL;
 937
 938                 if ((r = bus_parse_strv(message, &l)) < 0) {
 939                         if (r == -ENOMEM)
 940                                 goto oom;
 941
 942                         return bus_send_error_reply(m, connection, message, NULL, r);
 943                 }
 944
 945                 e = strv_env_delete(m->environment, 1, l);
 946                 strv_free(l);
 947
 948                 if (!e)
 949                         goto oom;
 950
 951                 if (!(reply = dbus_message_new_method_return(message)))
 952                         goto oom;
 953
 954                 strv_free(m->environment);
 955                 m->environment = e;
 956
 957         } else
 958                 return bus_default_message_handler(m, connection, message, NULL, properties);
 959
 960         if (job_type != _JOB_TYPE_INVALID) {
 961                 const char *name, *smode, *old_name = NULL;
 962                 JobMode mode;
 963                 Job *j;
 964                 Unit *u;
 965                 bool b;
 966
 967                 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 968                         b = dbus_message_get_args(
 969                                         message,
 970                                         &error,
 971                                         DBUS_TYPE_STRING, &old_name,
 972                                         DBUS_TYPE_STRING, &name,
 973                                         DBUS_TYPE_STRING, &smode,
 974                                         DBUS_TYPE_INVALID);
 975                 else
 976                         b = dbus_message_get_args(
 977                                         message,
 978                                         &error,
 979                                         DBUS_TYPE_STRING, &name,
 980                                         DBUS_TYPE_STRING, &smode,
 981                                         DBUS_TYPE_INVALID);
 982
 983                 if (!b)
 984                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 985
 986                 if (old_name)
 987                         if (!(u = manager_get_unit(m, old_name)) ||
 988                             !u->meta.job ||
 989                             u->meta.job->type != JOB_START) {
 990                                 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
 991                                 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 992                         }
 993
 994
 995                 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
 996                         dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
 997                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 998                 }
 999
1000                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1001                         return bus_send_error_reply(m, connection, message, &error, r);
1002
1003                 if (reload_if_possible && unit_can_reload(u)) {
1004                         if (job_type == JOB_RESTART)
1005                                 job_type = JOB_RELOAD_OR_START;
1006                         else if (job_type == JOB_TRY_RESTART)
1007                                 job_type = JOB_RELOAD;
1008                 }
1009
1010                 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1011                     (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1012                     ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1013                      (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1014                         dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1015                         return bus_send_error_reply(m, connection, message, &error, -EPERM);
1016                 }
1017
1018                 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1019                         return bus_send_error_reply(m, connection, message, &error, r);
1020
1021                 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1022                         goto oom;
1023
1024                 j->bus = connection;
1025
1026                 if (!(reply = dbus_message_new_method_return(message)))
1027                         goto oom;
1028
1029                 if (!(path = job_dbus_path(j)))
1030                         goto oom;
1031
1032                 if (!dbus_message_append_args(
1033                                     reply,
1034                                     DBUS_TYPE_OBJECT_PATH, &path,
1035                                     DBUS_TYPE_INVALID))
1036                         goto oom;
1037         }
1038
1039         free(path);
1040
1041         if (reply) {
1042                 if (!dbus_connection_send(connection, reply, NULL))
1043                         goto oom;
1044
1045                 dbus_message_unref(reply);
1046         }
1047
1048         return DBUS_HANDLER_RESULT_HANDLED;
1049
1050 oom:
1051         free(path);
1052
1053         if (reply)
1054                 dbus_message_unref(reply);
1055
1056         dbus_error_free(&error);
1057
1058         return DBUS_HANDLER_RESULT_NEED_MEMORY;
1059 }
1060
1061 const DBusObjectPathVTable bus_manager_vtable = {
1062         .message_function = bus_manager_message_handler
1063 };