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=\"InitRDTimestamp\" type=\"t\" access=\"read\"/>\n" \
 154         "  <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
 155         "  <property name=\"FinishTimestamp\" type=\"t\" access=\"read\"/>\n" \
 156         "  <property name=\"LogLevel\" type=\"s\" access=\"read\"/>\n"  \
 157         "  <property name=\"LogTarget\" type=\"s\" access=\"read\"/>\n" \
 158         "  <property name=\"NNames\" type=\"u\" access=\"read\"/>\n"    \
 159         "  <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n"     \
 160         "  <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
 161         "  <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
 162         "  <property name=\"Progress\" type=\"d\" access=\"read\"/>\n"  \
 163         "  <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
 164         "  <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
 165         "  <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
 166         "  <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
 167         "  <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
 168         "  <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
 169         "  <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
 170         "  <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n"  \
 171         "  <property name=\"DefaultControllers\" type=\"as\" access=\"read\"/>\n"
 172                                                                         \
 173
 174 #ifdef HAVE_SYSV_COMPAT
 175 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 176         "  <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
 177         "  <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
 178         "  <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
 179 #else
 180 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
 181 #endif
 182
 183 #define BUS_MANAGER_INTERFACE_END                                       \
 184         " </interface>\n"
 185
 186 #define BUS_MANAGER_INTERFACE                                           \
 187         BUS_MANAGER_INTERFACE_BEGIN                                     \
 188         BUS_MANAGER_INTERFACE_METHODS                                   \
 189         BUS_MANAGER_INTERFACE_SIGNALS                                   \
 190         BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 191         BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 192         BUS_MANAGER_INTERFACE_END
 193
 194 #define INTROSPECTION_BEGIN                                             \
 195         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
 196         "<node>\n"                                                      \
 197         BUS_MANAGER_INTERFACE                                           \
 198         BUS_PROPERTIES_INTERFACE                                        \
 199         BUS_PEER_INTERFACE                                              \
 200         BUS_INTROSPECTABLE_INTERFACE
 201
 202 #define INTROSPECTION_END                                               \
 203         "</node>\n"
 204
 205 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
 206
 207 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
 208
 209 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 210         const char *t;
 211
 212         assert(m);
 213         assert(i);
 214         assert(property);
 215
 216         t = log_target_to_string(log_get_target());
 217
 218         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 219                 return -ENOMEM;
 220
 221         return 0;
 222 }
 223
 224 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 225         const char *t;
 226
 227         assert(m);
 228         assert(i);
 229         assert(property);
 230
 231         t = log_level_to_string(log_get_max_level());
 232
 233         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 234                 return -ENOMEM;
 235
 236         return 0;
 237 }
 238
 239 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 240         uint32_t u;
 241
 242         assert(m);
 243         assert(i);
 244         assert(property);
 245
 246         u = hashmap_size(m->units);
 247
 248         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 249                 return -ENOMEM;
 250
 251         return 0;
 252 }
 253
 254 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 255         uint32_t u;
 256
 257         assert(m);
 258         assert(i);
 259         assert(property);
 260
 261         u = hashmap_size(m->jobs);
 262
 263         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 264                 return -ENOMEM;
 265
 266         return 0;
 267 }
 268
 269 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 270         double d;
 271
 272         assert(m);
 273         assert(i);
 274         assert(property);
 275
 276         if (dual_timestamp_is_set(&m->finish_timestamp))
 277                 d = 1.0;
 278         else
 279                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 280
 281         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
 282                 return -ENOMEM;
 283
 284         return 0;
 285 }
 286
 287 static const char *message_get_sender_with_fallback(DBusMessage *m) {
 288         const char *s;
 289
 290         assert(m);
 291
 292         if ((s = dbus_message_get_sender(m)))
 293                 return s;
 294
 295         /* When the message came in from a direct connection the
 296          * message will have no sender. We fix that here. */
 297
 298         return ":no-sender";
 299 }
 300
 301 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
 302         Manager *m = data;
 303
 304         const BusProperty properties[] = {
 305                 { "org.freedesktop.systemd1.Manager", "Version",       bus_property_append_string,    "s",  PACKAGE_STRING     },
 306                 { "org.freedesktop.systemd1.Manager", "RunningAs",     bus_manager_append_running_as, "s",  &m->running_as     },
 307                 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64,  "t",  &m->initrd_timestamp.realtime },
 308                 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t",  &m->startup_timestamp.realtime },
 309                 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64,  "t",  &m->finish_timestamp.realtime },
 310                 { "org.freedesktop.systemd1.Manager", "LogLevel",      bus_manager_append_log_level,  "s",  NULL               },
 311                 { "org.freedesktop.systemd1.Manager", "LogTarget",     bus_manager_append_log_target, "s",  NULL               },
 312                 { "org.freedesktop.systemd1.Manager", "NNames",        bus_manager_append_n_names,    "u",  NULL               },
 313                 { "org.freedesktop.systemd1.Manager", "NJobs",         bus_manager_append_n_jobs,     "u",  NULL               },
 314                 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32,    "u",  &m->n_installed_jobs },
 315                 { "org.freedesktop.systemd1.Manager", "NFailedJobs",   bus_property_append_uint32,    "u",  &m->n_failed_jobs  },
 316                 { "org.freedesktop.systemd1.Manager", "Progress",      bus_manager_append_progress,   "d",  NULL               },
 317                 { "org.freedesktop.systemd1.Manager", "Environment",   bus_property_append_strv,      "as", m->environment     },
 318                 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn",  bus_property_append_bool,      "b",  &m->confirm_spawn  },
 319                 { "org.freedesktop.systemd1.Manager", "ShowStatus",    bus_property_append_bool,      "b",  &m->show_status    },
 320                 { "org.freedesktop.systemd1.Manager", "UnitPath",      bus_property_append_strv,      "as", m->lookup_paths.unit_path },
 321                 { "org.freedesktop.systemd1.Manager", "NotifySocket",  bus_property_append_string,    "s",  m->notify_socket   },
 322                 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
 323                 { "org.freedesktop.systemd1.Manager", "MountAuto",     bus_property_append_bool,      "b",  &m->mount_auto     },
 324                 { "org.freedesktop.systemd1.Manager", "SwapAuto",      bus_property_append_bool,      "b",  &m->swap_auto      },
 325                 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
 326 #ifdef HAVE_SYSV_COMPAT
 327                 { "org.freedesktop.systemd1.Manager", "SysVConsole",   bus_property_append_bool,      "b",  &m->sysv_console   },
 328                 { "org.freedesktop.systemd1.Manager", "SysVInitPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvinit_path },
 329                 { "org.freedesktop.systemd1.Manager", "SysVRcndPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvrcnd_path },
 330 #endif
 331                 { NULL, NULL, NULL, NULL, NULL }
 332         };
 333
 334         int r;
 335         DBusError error;
 336         DBusMessage *reply = NULL;
 337         char * path = NULL;
 338         JobType job_type = _JOB_TYPE_INVALID;
 339         bool reload_if_possible = false;
 340
 341         assert(connection);
 342         assert(message);
 343         assert(m);
 344
 345         dbus_error_init(&error);
 346
 347         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
 348                 const char *name;
 349                 Unit *u;
 350
 351                 if (!dbus_message_get_args(
 352                                     message,
 353                                     &error,
 354                                     DBUS_TYPE_STRING, &name,
 355                                     DBUS_TYPE_INVALID))
 356                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 357
 358                 if (!(u = manager_get_unit(m, name))) {
 359                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 360                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 361                 }
 362
 363                 if (!(reply = dbus_message_new_method_return(message)))
 364                         goto oom;
 365
 366                 if (!(path = unit_dbus_path(u)))
 367                         goto oom;
 368
 369                 if (!dbus_message_append_args(
 370                                     reply,
 371                                     DBUS_TYPE_OBJECT_PATH, &path,
 372                                     DBUS_TYPE_INVALID))
 373                         goto oom;
 374         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
 375                 Unit *u;
 376                 uint32_t pid;
 377
 378                 if (!dbus_message_get_args(
 379                                     message,
 380                                     &error,
 381                                     DBUS_TYPE_UINT32, &pid,
 382                                     DBUS_TYPE_INVALID))
 383                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 384
 385                 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
 386                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
 387                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 388                 }
 389
 390                 if (!(reply = dbus_message_new_method_return(message)))
 391                         goto oom;
 392
 393                 if (!(path = unit_dbus_path(u)))
 394                         goto oom;
 395
 396                 if (!dbus_message_append_args(
 397                                     reply,
 398                                     DBUS_TYPE_OBJECT_PATH, &path,
 399                                     DBUS_TYPE_INVALID))
 400                         goto oom;
 401         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
 402                 const char *name;
 403                 Unit *u;
 404
 405                 if (!dbus_message_get_args(
 406                                     message,
 407                                     &error,
 408                                     DBUS_TYPE_STRING, &name,
 409                                     DBUS_TYPE_INVALID))
 410                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 411
 412                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
 413                         return bus_send_error_reply(m, connection, message, &error, r);
 414
 415                 if (!(reply = dbus_message_new_method_return(message)))
 416                         goto oom;
 417
 418                 if (!(path = unit_dbus_path(u)))
 419                         goto oom;
 420
 421                 if (!dbus_message_append_args(
 422                                     reply,
 423                                     DBUS_TYPE_OBJECT_PATH, &path,
 424                                     DBUS_TYPE_INVALID))
 425                         goto oom;
 426
 427         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
 428                 job_type = JOB_START;
 429         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 430                 job_type = JOB_START;
 431         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
 432                 job_type = JOB_STOP;
 433         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
 434                 job_type = JOB_RELOAD;
 435         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
 436                 job_type = JOB_RESTART;
 437         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
 438                 job_type = JOB_TRY_RESTART;
 439         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
 440                 reload_if_possible = true;
 441                 job_type = JOB_RESTART;
 442         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
 443                 reload_if_possible = true;
 444                 job_type = JOB_TRY_RESTART;
 445         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
 446                 const char *name, *swho, *smode;
 447                 int32_t signo;
 448                 Unit *u;
 449                 KillMode mode;
 450                 KillWho who;
 451
 452                 if (!dbus_message_get_args(
 453                                     message,
 454                                     &error,
 455                                     DBUS_TYPE_STRING, &name,
 456                                     DBUS_TYPE_STRING, &swho,
 457                                     DBUS_TYPE_STRING, &smode,
 458                                     DBUS_TYPE_INT32, &signo,
 459                                     DBUS_TYPE_INVALID))
 460                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 461
 462                 if ((mode = kill_mode_from_string(smode)) < 0 ||
 463                     (who = kill_who_from_string(swho)) < 0 ||
 464                     signo <= 0 ||
 465                     signo >= _NSIG)
 466                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 467
 468                 if (!(u = manager_get_unit(m, name))) {
 469                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 470                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 471                 }
 472
 473                 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
 474                         return bus_send_error_reply(m, connection, message, &error, r);
 475
 476                 if (!(reply = dbus_message_new_method_return(message)))
 477                         goto oom;
 478
 479         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
 480                 uint32_t id;
 481                 Job *j;
 482
 483                 if (!dbus_message_get_args(
 484                                     message,
 485                                     &error,
 486                                     DBUS_TYPE_UINT32, &id,
 487                                     DBUS_TYPE_INVALID))
 488                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 489
 490                 if (!(j = manager_get_job(m, id))) {
 491                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
 492                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 493                 }
 494
 495                 if (!(reply = dbus_message_new_method_return(message)))
 496                         goto oom;
 497
 498                 if (!(path = job_dbus_path(j)))
 499                         goto oom;
 500
 501                 if (!dbus_message_append_args(
 502                                     reply,
 503                                     DBUS_TYPE_OBJECT_PATH, &path,
 504                                     DBUS_TYPE_INVALID))
 505                         goto oom;
 506
 507         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
 508
 509                 manager_clear_jobs(m);
 510
 511                 if (!(reply = dbus_message_new_method_return(message)))
 512                         goto oom;
 513
 514         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
 515
 516                 manager_reset_failed(m);
 517
 518                 if (!(reply = dbus_message_new_method_return(message)))
 519                         goto oom;
 520
 521         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
 522                 const char *name;
 523                 Unit *u;
 524
 525                 if (!dbus_message_get_args(
 526                                     message,
 527                                     &error,
 528                                     DBUS_TYPE_STRING, &name,
 529                                     DBUS_TYPE_INVALID))
 530                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 531
 532                 if (!(u = manager_get_unit(m, name))) {
 533                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 534                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 535                 }
 536
 537                 unit_reset_failed(u);
 538
 539                 if (!(reply = dbus_message_new_method_return(message)))
 540                         goto oom;
 541
 542         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
 543                 DBusMessageIter iter, sub;
 544                 Iterator i;
 545                 Unit *u;
 546                 const char *k;
 547
 548                 if (!(reply = dbus_message_new_method_return(message)))
 549                         goto oom;
 550
 551                 dbus_message_iter_init_append(reply, &iter);
 552
 553                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
 554                         goto oom;
 555
 556                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 557                         char *u_path, *j_path;
 558                         const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
 559                         DBusMessageIter sub2;
 560                         uint32_t job_id;
 561                         Unit *f;
 562
 563                         if (k != u->meta.id)
 564                                 continue;
 565
 566                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 567                                 goto oom;
 568
 569                         description = unit_description(u);
 570                         load_state = unit_load_state_to_string(u->meta.load_state);
 571                         active_state = unit_active_state_to_string(unit_active_state(u));
 572                         sub_state = unit_sub_state_to_string(u);
 573
 574                         f = unit_following(u);
 575                         following = f ? f->meta.id : "";
 576
 577                         if (!(u_path = unit_dbus_path(u)))
 578                                 goto oom;
 579
 580                         if (u->meta.job) {
 581                                 job_id = (uint32_t) u->meta.job->id;
 582
 583                                 if (!(j_path = job_dbus_path(u->meta.job))) {
 584                                         free(u_path);
 585                                         goto oom;
 586                                 }
 587
 588                                 sjob_type = job_type_to_string(u->meta.job->type);
 589                         } else {
 590                                 job_id = 0;
 591                                 j_path = u_path;
 592                                 sjob_type = "";
 593                         }
 594
 595                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
 596                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
 597                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
 598                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
 599                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
 600                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
 601                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
 602                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
 603                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
 604                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
 605                                 free(u_path);
 606                                 if (u->meta.job)
 607                                         free(j_path);
 608                                 goto oom;
 609                         }
 610
 611                         free(u_path);
 612                         if (u->meta.job)
 613                                 free(j_path);
 614
 615                         if (!dbus_message_iter_close_container(&sub, &sub2))
 616                                 goto oom;
 617                 }
 618
 619                 if (!dbus_message_iter_close_container(&iter, &sub))
 620                         goto oom;
 621
 622         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
 623                 DBusMessageIter iter, sub;
 624                 Iterator i;
 625                 Job *j;
 626
 627                 if (!(reply = dbus_message_new_method_return(message)))
 628                         goto oom;
 629
 630                 dbus_message_iter_init_append(reply, &iter);
 631
 632                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
 633                         goto oom;
 634
 635                 HASHMAP_FOREACH(j, m->jobs, i) {
 636                         char *u_path, *j_path;
 637                         const char *state, *type;
 638                         uint32_t id;
 639                         DBusMessageIter sub2;
 640
 641                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 642                                 goto oom;
 643
 644                         id = (uint32_t) j->id;
 645                         state = job_state_to_string(j->state);
 646                         type = job_type_to_string(j->type);
 647
 648                         if (!(j_path = job_dbus_path(j)))
 649                                 goto oom;
 650
 651                         if (!(u_path = unit_dbus_path(j->unit))) {
 652                                 free(j_path);
 653                                 goto oom;
 654                         }
 655
 656                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
 657                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
 658                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
 659                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
 660                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
 661                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
 662                                 free(j_path);
 663                                 free(u_path);
 664                                 goto oom;
 665                         }
 666
 667                         free(j_path);
 668                         free(u_path);
 669
 670                         if (!dbus_message_iter_close_container(&sub, &sub2))
 671                                 goto oom;
 672                 }
 673
 674                 if (!dbus_message_iter_close_container(&iter, &sub))
 675                         goto oom;
 676
 677         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
 678                 char *client;
 679                 Set *s;
 680
 681                 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
 682                         if (!(s = set_new(string_hash_func, string_compare_func)))
 683                                 goto oom;
 684
 685                         if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
 686                                 set_free(s);
 687                                 goto oom;
 688                         }
 689                 }
 690
 691                 if (!(client = strdup(message_get_sender_with_fallback(message))))
 692                         goto oom;
 693
 694                 if ((r = set_put(s, client)) < 0) {
 695                         free(client);
 696                         return bus_send_error_reply(m, connection, message, NULL, r);
 697                 }
 698
 699                 if (!(reply = dbus_message_new_method_return(message)))
 700                         goto oom;
 701
 702         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
 703                 char *client;
 704
 705                 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
 706                         dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
 707                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 708                 }
 709
 710                 free(client);
 711
 712                 if (!(reply = dbus_message_new_method_return(message)))
 713                         goto oom;
 714
 715         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
 716                 FILE *f;
 717                 char *dump = NULL;
 718                 size_t size;
 719
 720                 if (!(reply = dbus_message_new_method_return(message)))
 721                         goto oom;
 722
 723                 if (!(f = open_memstream(&dump, &size)))
 724                         goto oom;
 725
 726                 manager_dump_units(m, f, NULL);
 727                 manager_dump_jobs(m, f, NULL);
 728
 729                 if (ferror(f)) {
 730                         fclose(f);
 731                         free(dump);
 732                         goto oom;
 733                 }
 734
 735                 fclose(f);
 736
 737                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
 738                         free(dump);
 739                         goto oom;
 740                 }
 741
 742                 free(dump);
 743         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
 744                 const char *name;
 745                 dbus_bool_t cleanup;
 746                 Snapshot *s;
 747
 748                 if (!dbus_message_get_args(
 749                                     message,
 750                                     &error,
 751                                     DBUS_TYPE_STRING, &name,
 752                                     DBUS_TYPE_BOOLEAN, &cleanup,
 753                                     DBUS_TYPE_INVALID))
 754                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 755
 756                 if (name && name[0] == 0)
 757                         name = NULL;
 758
 759                 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
 760                         return bus_send_error_reply(m, connection, message, &error, r);
 761
 762                 if (!(reply = dbus_message_new_method_return(message)))
 763                         goto oom;
 764
 765                 if (!(path = unit_dbus_path(UNIT(s))))
 766                         goto oom;
 767
 768                 if (!dbus_message_append_args(
 769                                     reply,
 770                                     DBUS_TYPE_OBJECT_PATH, &path,
 771                                     DBUS_TYPE_INVALID))
 772                         goto oom;
 773
 774         } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
 775                 char *introspection = NULL;
 776                 FILE *f;
 777                 Iterator i;
 778                 Unit *u;
 779                 Job *j;
 780                 const char *k;
 781                 size_t size;
 782
 783                 if (!(reply = dbus_message_new_method_return(message)))
 784                         goto oom;
 785
 786                 /* We roll our own introspection code here, instead of
 787                  * relying on bus_default_message_handler() because we
 788                  * need to generate our introspection string
 789                  * dynamically. */
 790
 791                 if (!(f = open_memstream(&introspection, &size)))
 792                         goto oom;
 793
 794                 fputs(INTROSPECTION_BEGIN, f);
 795
 796                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 797                         char *p;
 798
 799                         if (k != u->meta.id)
 800                                 continue;
 801
 802                         if (!(p = bus_path_escape(k))) {
 803                                 fclose(f);
 804                                 free(introspection);
 805                                 goto oom;
 806                         }
 807
 808                         fprintf(f, "<node name=\"unit/%s\"/>", p);
 809                         free(p);
 810                 }
 811
 812                 HASHMAP_FOREACH(j, m->jobs, i)
 813                         fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
 814
 815                 fputs(INTROSPECTION_END, f);
 816
 817                 if (ferror(f)) {
 818                         fclose(f);
 819                         free(introspection);
 820                         goto oom;
 821                 }
 822
 823                 fclose(f);
 824
 825                 if (!introspection)
 826                         goto oom;
 827
 828                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
 829                         free(introspection);
 830                         goto oom;
 831                 }
 832
 833                 free(introspection);
 834
 835         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
 836
 837                 assert(!m->queued_message);
 838
 839                 /* Instead of sending the reply back right away, we
 840                  * just remember that we need to and then send it
 841                  * after the reload is finished. That way the caller
 842                  * knows when the reload finished. */
 843
 844                 if (!(m->queued_message = dbus_message_new_method_return(message)))
 845                         goto oom;
 846
 847                 m->queued_message_connection = connection;
 848                 m->exit_code = MANAGER_RELOAD;
 849
 850         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
 851
 852                 if (!(reply = dbus_message_new_method_return(message)))
 853                         goto oom;
 854
 855                 m->exit_code = MANAGER_REEXECUTE;
 856
 857         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
 858
 859                 if (m->running_as == MANAGER_SYSTEM) {
 860                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
 861                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 862                 }
 863
 864                 if (!(reply = dbus_message_new_method_return(message)))
 865                         goto oom;
 866
 867                 m->exit_code = MANAGER_EXIT;
 868
 869         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
 870
 871                 if (m->running_as != MANAGER_SYSTEM) {
 872                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
 873                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 874                 }
 875
 876                 if (!(reply = dbus_message_new_method_return(message)))
 877                         goto oom;
 878
 879                 m->exit_code = MANAGER_REBOOT;
 880
 881         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
 882
 883                 if (m->running_as != MANAGER_SYSTEM) {
 884                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
 885                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 886                 }
 887
 888                 if (!(reply = dbus_message_new_method_return(message)))
 889                         goto oom;
 890
 891                 m->exit_code = MANAGER_POWEROFF;
 892
 893         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
 894
 895                 if (m->running_as != MANAGER_SYSTEM) {
 896                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
 897                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 898                 }
 899
 900                 if (!(reply = dbus_message_new_method_return(message)))
 901                         goto oom;
 902
 903                 m->exit_code = MANAGER_HALT;
 904
 905         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
 906
 907                 if (m->running_as != MANAGER_SYSTEM) {
 908                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
 909                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 910                 }
 911
 912                 if (!(reply = dbus_message_new_method_return(message)))
 913                         goto oom;
 914
 915                 m->exit_code = MANAGER_KEXEC;
 916
 917         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
 918                 char **l = NULL, **e = NULL;
 919
 920                 if ((r = bus_parse_strv(message, &l)) < 0) {
 921                         if (r == -ENOMEM)
 922                                 goto oom;
 923
 924                         return bus_send_error_reply(m, connection, message, NULL, r);
 925                 }
 926
 927                 e = strv_env_merge(2, m->environment, l);
 928                 strv_free(l);
 929
 930                 if (!e)
 931                         goto oom;
 932
 933                 if (!(reply = dbus_message_new_method_return(message))) {
 934                         strv_free(e);
 935                         goto oom;
 936                 }
 937
 938                 strv_free(m->environment);
 939                 m->environment = e;
 940
 941         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
 942                 char **l = NULL, **e = NULL;
 943
 944                 if ((r = bus_parse_strv(message, &l)) < 0) {
 945                         if (r == -ENOMEM)
 946                                 goto oom;
 947
 948                         return bus_send_error_reply(m, connection, message, NULL, r);
 949                 }
 950
 951                 e = strv_env_delete(m->environment, 1, l);
 952                 strv_free(l);
 953
 954                 if (!e)
 955                         goto oom;
 956
 957                 if (!(reply = dbus_message_new_method_return(message)))
 958                         goto oom;
 959
 960                 strv_free(m->environment);
 961                 m->environment = e;
 962
 963         } else
 964                 return bus_default_message_handler(m, connection, message, NULL, properties);
 965
 966         if (job_type != _JOB_TYPE_INVALID) {
 967                 const char *name, *smode, *old_name = NULL;
 968                 JobMode mode;
 969                 Job *j;
 970                 Unit *u;
 971                 bool b;
 972
 973                 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 974                         b = dbus_message_get_args(
 975                                         message,
 976                                         &error,
 977                                         DBUS_TYPE_STRING, &old_name,
 978                                         DBUS_TYPE_STRING, &name,
 979                                         DBUS_TYPE_STRING, &smode,
 980                                         DBUS_TYPE_INVALID);
 981                 else
 982                         b = dbus_message_get_args(
 983                                         message,
 984                                         &error,
 985                                         DBUS_TYPE_STRING, &name,
 986                                         DBUS_TYPE_STRING, &smode,
 987                                         DBUS_TYPE_INVALID);
 988
 989                 if (!b)
 990                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 991
 992                 if (old_name)
 993                         if (!(u = manager_get_unit(m, old_name)) ||
 994                             !u->meta.job ||
 995                             u->meta.job->type != JOB_START) {
 996                                 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
 997                                 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 998                         }
 999
1000
1001                 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1002                         dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1003                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1004                 }
1005
1006                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1007                         return bus_send_error_reply(m, connection, message, &error, r);
1008
1009                 if (reload_if_possible && unit_can_reload(u)) {
1010                         if (job_type == JOB_RESTART)
1011                                 job_type = JOB_RELOAD_OR_START;
1012                         else if (job_type == JOB_TRY_RESTART)
1013                                 job_type = JOB_RELOAD;
1014                 }
1015
1016                 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1017                     (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1018                     ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1019                      (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1020                         dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1021                         return bus_send_error_reply(m, connection, message, &error, -EPERM);
1022                 }
1023
1024                 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1025                         return bus_send_error_reply(m, connection, message, &error, r);
1026
1027                 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1028                         goto oom;
1029
1030                 j->bus = connection;
1031
1032                 if (!(reply = dbus_message_new_method_return(message)))
1033                         goto oom;
1034
1035                 if (!(path = job_dbus_path(j)))
1036                         goto oom;
1037
1038                 if (!dbus_message_append_args(
1039                                     reply,
1040                                     DBUS_TYPE_OBJECT_PATH, &path,
1041                                     DBUS_TYPE_INVALID))
1042                         goto oom;
1043         }
1044
1045         free(path);
1046
1047         if (reply) {
1048                 if (!dbus_connection_send(connection, reply, NULL))
1049                         goto oom;
1050
1051                 dbus_message_unref(reply);
1052         }
1053
1054         return DBUS_HANDLER_RESULT_HANDLED;
1055
1056 oom:
1057         free(path);
1058
1059         if (reply)
1060                 dbus_message_unref(reply);
1061
1062         dbus_error_free(&error);
1063
1064         return DBUS_HANDLER_RESULT_NEED_MEMORY;
1065 }
1066
1067 const DBusObjectPathVTable bus_manager_vtable = {
1068         .message_function = bus_manager_message_handler
1069 };