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         "  <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
 173         "  <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n"
 174
 175 #ifdef HAVE_SYSV_COMPAT
 176 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 177         "  <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
 178         "  <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
 179         "  <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
 180 #else
 181 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
 182 #endif
 183
 184 #define BUS_MANAGER_INTERFACE_END                                       \
 185         " </interface>\n"
 186
 187 #define BUS_MANAGER_INTERFACE                                           \
 188         BUS_MANAGER_INTERFACE_BEGIN                                     \
 189         BUS_MANAGER_INTERFACE_METHODS                                   \
 190         BUS_MANAGER_INTERFACE_SIGNALS                                   \
 191         BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 192         BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 193         BUS_MANAGER_INTERFACE_END
 194
 195 #define INTROSPECTION_BEGIN                                             \
 196         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
 197         "<node>\n"                                                      \
 198         BUS_MANAGER_INTERFACE                                           \
 199         BUS_PROPERTIES_INTERFACE                                        \
 200         BUS_PEER_INTERFACE                                              \
 201         BUS_INTROSPECTABLE_INTERFACE
 202
 203 #define INTROSPECTION_END                                               \
 204         "</node>\n"
 205
 206 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
 207
 208 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
 209 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_exec_output, exec_output, ExecOutput);
 210
 211 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 212         const char *t;
 213
 214         assert(m);
 215         assert(i);
 216         assert(property);
 217
 218         t = log_target_to_string(log_get_target());
 219
 220         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 221                 return -ENOMEM;
 222
 223         return 0;
 224 }
 225
 226 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 227         const char *t;
 228
 229         assert(m);
 230         assert(i);
 231         assert(property);
 232
 233         t = log_level_to_string(log_get_max_level());
 234
 235         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 236                 return -ENOMEM;
 237
 238         return 0;
 239 }
 240
 241 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 242         uint32_t u;
 243
 244         assert(m);
 245         assert(i);
 246         assert(property);
 247
 248         u = hashmap_size(m->units);
 249
 250         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 251                 return -ENOMEM;
 252
 253         return 0;
 254 }
 255
 256 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 257         uint32_t u;
 258
 259         assert(m);
 260         assert(i);
 261         assert(property);
 262
 263         u = hashmap_size(m->jobs);
 264
 265         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 266                 return -ENOMEM;
 267
 268         return 0;
 269 }
 270
 271 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 272         double d;
 273
 274         assert(m);
 275         assert(i);
 276         assert(property);
 277
 278         if (dual_timestamp_is_set(&m->finish_timestamp))
 279                 d = 1.0;
 280         else
 281                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 282
 283         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
 284                 return -ENOMEM;
 285
 286         return 0;
 287 }
 288
 289 static const char *message_get_sender_with_fallback(DBusMessage *m) {
 290         const char *s;
 291
 292         assert(m);
 293
 294         if ((s = dbus_message_get_sender(m)))
 295                 return s;
 296
 297         /* When the message came in from a direct connection the
 298          * message will have no sender. We fix that here. */
 299
 300         return ":no-sender";
 301 }
 302
 303 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
 304         Manager *m = data;
 305
 306         const BusProperty properties[] = {
 307                 { "org.freedesktop.systemd1.Manager", "Version",       bus_property_append_string,    "s",  PACKAGE_STRING     },
 308                 { "org.freedesktop.systemd1.Manager", "RunningAs",     bus_manager_append_running_as, "s",  &m->running_as     },
 309                 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64,  "t",  &m->initrd_timestamp.realtime },
 310                 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t",  &m->startup_timestamp.realtime },
 311                 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64,  "t",  &m->finish_timestamp.realtime },
 312                 { "org.freedesktop.systemd1.Manager", "LogLevel",      bus_manager_append_log_level,  "s",  NULL               },
 313                 { "org.freedesktop.systemd1.Manager", "LogTarget",     bus_manager_append_log_target, "s",  NULL               },
 314                 { "org.freedesktop.systemd1.Manager", "NNames",        bus_manager_append_n_names,    "u",  NULL               },
 315                 { "org.freedesktop.systemd1.Manager", "NJobs",         bus_manager_append_n_jobs,     "u",  NULL               },
 316                 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32,    "u",  &m->n_installed_jobs },
 317                 { "org.freedesktop.systemd1.Manager", "NFailedJobs",   bus_property_append_uint32,    "u",  &m->n_failed_jobs  },
 318                 { "org.freedesktop.systemd1.Manager", "Progress",      bus_manager_append_progress,   "d",  NULL               },
 319                 { "org.freedesktop.systemd1.Manager", "Environment",   bus_property_append_strv,      "as", m->environment     },
 320                 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn",  bus_property_append_bool,      "b",  &m->confirm_spawn  },
 321                 { "org.freedesktop.systemd1.Manager", "ShowStatus",    bus_property_append_bool,      "b",  &m->show_status    },
 322                 { "org.freedesktop.systemd1.Manager", "UnitPath",      bus_property_append_strv,      "as", m->lookup_paths.unit_path },
 323                 { "org.freedesktop.systemd1.Manager", "NotifySocket",  bus_property_append_string,    "s",  m->notify_socket   },
 324                 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
 325                 { "org.freedesktop.systemd1.Manager", "MountAuto",     bus_property_append_bool,      "b",  &m->mount_auto     },
 326                 { "org.freedesktop.systemd1.Manager", "SwapAuto",      bus_property_append_bool,      "b",  &m->swap_auto      },
 327                 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
 328                 { "org.freedesktop.systemd1.Manager", "DefaultStandardOutput", bus_manager_append_exec_output, "s", &m->default_std_output },
 329                 { "org.freedesktop.systemd1.Manager", "DefaultStandardError",  bus_manager_append_exec_output, "s", &m->default_std_error  },
 330 #ifdef HAVE_SYSV_COMPAT
 331                 { "org.freedesktop.systemd1.Manager", "SysVConsole",   bus_property_append_bool,      "b",  &m->sysv_console   },
 332                 { "org.freedesktop.systemd1.Manager", "SysVInitPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvinit_path },
 333                 { "org.freedesktop.systemd1.Manager", "SysVRcndPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvrcnd_path },
 334 #endif
 335                 { NULL, NULL, NULL, NULL, NULL }
 336         };
 337
 338         int r;
 339         DBusError error;
 340         DBusMessage *reply = NULL;
 341         char * path = NULL;
 342         JobType job_type = _JOB_TYPE_INVALID;
 343         bool reload_if_possible = false;
 344
 345         assert(connection);
 346         assert(message);
 347         assert(m);
 348
 349         dbus_error_init(&error);
 350
 351         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
 352                 const char *name;
 353                 Unit *u;
 354
 355                 if (!dbus_message_get_args(
 356                                     message,
 357                                     &error,
 358                                     DBUS_TYPE_STRING, &name,
 359                                     DBUS_TYPE_INVALID))
 360                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 361
 362                 if (!(u = manager_get_unit(m, name))) {
 363                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 364                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 365                 }
 366
 367                 if (!(reply = dbus_message_new_method_return(message)))
 368                         goto oom;
 369
 370                 if (!(path = unit_dbus_path(u)))
 371                         goto oom;
 372
 373                 if (!dbus_message_append_args(
 374                                     reply,
 375                                     DBUS_TYPE_OBJECT_PATH, &path,
 376                                     DBUS_TYPE_INVALID))
 377                         goto oom;
 378         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
 379                 Unit *u;
 380                 uint32_t pid;
 381
 382                 if (!dbus_message_get_args(
 383                                     message,
 384                                     &error,
 385                                     DBUS_TYPE_UINT32, &pid,
 386                                     DBUS_TYPE_INVALID))
 387                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 388
 389                 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
 390                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
 391                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 392                 }
 393
 394                 if (!(reply = dbus_message_new_method_return(message)))
 395                         goto oom;
 396
 397                 if (!(path = unit_dbus_path(u)))
 398                         goto oom;
 399
 400                 if (!dbus_message_append_args(
 401                                     reply,
 402                                     DBUS_TYPE_OBJECT_PATH, &path,
 403                                     DBUS_TYPE_INVALID))
 404                         goto oom;
 405         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
 406                 const char *name;
 407                 Unit *u;
 408
 409                 if (!dbus_message_get_args(
 410                                     message,
 411                                     &error,
 412                                     DBUS_TYPE_STRING, &name,
 413                                     DBUS_TYPE_INVALID))
 414                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 415
 416                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
 417                         return bus_send_error_reply(m, connection, message, &error, r);
 418
 419                 if (!(reply = dbus_message_new_method_return(message)))
 420                         goto oom;
 421
 422                 if (!(path = unit_dbus_path(u)))
 423                         goto oom;
 424
 425                 if (!dbus_message_append_args(
 426                                     reply,
 427                                     DBUS_TYPE_OBJECT_PATH, &path,
 428                                     DBUS_TYPE_INVALID))
 429                         goto oom;
 430
 431         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
 432                 job_type = JOB_START;
 433         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 434                 job_type = JOB_START;
 435         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
 436                 job_type = JOB_STOP;
 437         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
 438                 job_type = JOB_RELOAD;
 439         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
 440                 job_type = JOB_RESTART;
 441         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
 442                 job_type = JOB_TRY_RESTART;
 443         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
 444                 reload_if_possible = true;
 445                 job_type = JOB_RESTART;
 446         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
 447                 reload_if_possible = true;
 448                 job_type = JOB_TRY_RESTART;
 449         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
 450                 const char *name, *swho, *smode;
 451                 int32_t signo;
 452                 Unit *u;
 453                 KillMode mode;
 454                 KillWho who;
 455
 456                 if (!dbus_message_get_args(
 457                                     message,
 458                                     &error,
 459                                     DBUS_TYPE_STRING, &name,
 460                                     DBUS_TYPE_STRING, &swho,
 461                                     DBUS_TYPE_STRING, &smode,
 462                                     DBUS_TYPE_INT32, &signo,
 463                                     DBUS_TYPE_INVALID))
 464                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 465
 466                 if ((mode = kill_mode_from_string(smode)) < 0 ||
 467                     (who = kill_who_from_string(swho)) < 0 ||
 468                     signo <= 0 ||
 469                     signo >= _NSIG)
 470                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 471
 472                 if (!(u = manager_get_unit(m, name))) {
 473                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 474                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 475                 }
 476
 477                 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
 478                         return bus_send_error_reply(m, connection, message, &error, r);
 479
 480                 if (!(reply = dbus_message_new_method_return(message)))
 481                         goto oom;
 482
 483         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
 484                 uint32_t id;
 485                 Job *j;
 486
 487                 if (!dbus_message_get_args(
 488                                     message,
 489                                     &error,
 490                                     DBUS_TYPE_UINT32, &id,
 491                                     DBUS_TYPE_INVALID))
 492                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 493
 494                 if (!(j = manager_get_job(m, id))) {
 495                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
 496                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 497                 }
 498
 499                 if (!(reply = dbus_message_new_method_return(message)))
 500                         goto oom;
 501
 502                 if (!(path = job_dbus_path(j)))
 503                         goto oom;
 504
 505                 if (!dbus_message_append_args(
 506                                     reply,
 507                                     DBUS_TYPE_OBJECT_PATH, &path,
 508                                     DBUS_TYPE_INVALID))
 509                         goto oom;
 510
 511         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
 512
 513                 manager_clear_jobs(m);
 514
 515                 if (!(reply = dbus_message_new_method_return(message)))
 516                         goto oom;
 517
 518         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
 519
 520                 manager_reset_failed(m);
 521
 522                 if (!(reply = dbus_message_new_method_return(message)))
 523                         goto oom;
 524
 525         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
 526                 const char *name;
 527                 Unit *u;
 528
 529                 if (!dbus_message_get_args(
 530                                     message,
 531                                     &error,
 532                                     DBUS_TYPE_STRING, &name,
 533                                     DBUS_TYPE_INVALID))
 534                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 535
 536                 if (!(u = manager_get_unit(m, name))) {
 537                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 538                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 539                 }
 540
 541                 unit_reset_failed(u);
 542
 543                 if (!(reply = dbus_message_new_method_return(message)))
 544                         goto oom;
 545
 546         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
 547                 DBusMessageIter iter, sub;
 548                 Iterator i;
 549                 Unit *u;
 550                 const char *k;
 551
 552                 if (!(reply = dbus_message_new_method_return(message)))
 553                         goto oom;
 554
 555                 dbus_message_iter_init_append(reply, &iter);
 556
 557                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
 558                         goto oom;
 559
 560                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 561                         char *u_path, *j_path;
 562                         const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
 563                         DBusMessageIter sub2;
 564                         uint32_t job_id;
 565                         Unit *f;
 566
 567                         if (k != u->meta.id)
 568                                 continue;
 569
 570                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 571                                 goto oom;
 572
 573                         description = unit_description(u);
 574                         load_state = unit_load_state_to_string(u->meta.load_state);
 575                         active_state = unit_active_state_to_string(unit_active_state(u));
 576                         sub_state = unit_sub_state_to_string(u);
 577
 578                         f = unit_following(u);
 579                         following = f ? f->meta.id : "";
 580
 581                         if (!(u_path = unit_dbus_path(u)))
 582                                 goto oom;
 583
 584                         if (u->meta.job) {
 585                                 job_id = (uint32_t) u->meta.job->id;
 586
 587                                 if (!(j_path = job_dbus_path(u->meta.job))) {
 588                                         free(u_path);
 589                                         goto oom;
 590                                 }
 591
 592                                 sjob_type = job_type_to_string(u->meta.job->type);
 593                         } else {
 594                                 job_id = 0;
 595                                 j_path = u_path;
 596                                 sjob_type = "";
 597                         }
 598
 599                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
 600                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
 601                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
 602                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
 603                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
 604                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
 605                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
 606                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
 607                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
 608                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
 609                                 free(u_path);
 610                                 if (u->meta.job)
 611                                         free(j_path);
 612                                 goto oom;
 613                         }
 614
 615                         free(u_path);
 616                         if (u->meta.job)
 617                                 free(j_path);
 618
 619                         if (!dbus_message_iter_close_container(&sub, &sub2))
 620                                 goto oom;
 621                 }
 622
 623                 if (!dbus_message_iter_close_container(&iter, &sub))
 624                         goto oom;
 625
 626         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
 627                 DBusMessageIter iter, sub;
 628                 Iterator i;
 629                 Job *j;
 630
 631                 if (!(reply = dbus_message_new_method_return(message)))
 632                         goto oom;
 633
 634                 dbus_message_iter_init_append(reply, &iter);
 635
 636                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
 637                         goto oom;
 638
 639                 HASHMAP_FOREACH(j, m->jobs, i) {
 640                         char *u_path, *j_path;
 641                         const char *state, *type;
 642                         uint32_t id;
 643                         DBusMessageIter sub2;
 644
 645                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 646                                 goto oom;
 647
 648                         id = (uint32_t) j->id;
 649                         state = job_state_to_string(j->state);
 650                         type = job_type_to_string(j->type);
 651
 652                         if (!(j_path = job_dbus_path(j)))
 653                                 goto oom;
 654
 655                         if (!(u_path = unit_dbus_path(j->unit))) {
 656                                 free(j_path);
 657                                 goto oom;
 658                         }
 659
 660                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
 661                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
 662                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
 663                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
 664                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
 665                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
 666                                 free(j_path);
 667                                 free(u_path);
 668                                 goto oom;
 669                         }
 670
 671                         free(j_path);
 672                         free(u_path);
 673
 674                         if (!dbus_message_iter_close_container(&sub, &sub2))
 675                                 goto oom;
 676                 }
 677
 678                 if (!dbus_message_iter_close_container(&iter, &sub))
 679                         goto oom;
 680
 681         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
 682                 char *client;
 683                 Set *s;
 684
 685                 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
 686                         if (!(s = set_new(string_hash_func, string_compare_func)))
 687                                 goto oom;
 688
 689                         if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
 690                                 set_free(s);
 691                                 goto oom;
 692                         }
 693                 }
 694
 695                 if (!(client = strdup(message_get_sender_with_fallback(message))))
 696                         goto oom;
 697
 698                 if ((r = set_put(s, client)) < 0) {
 699                         free(client);
 700                         return bus_send_error_reply(m, connection, message, NULL, r);
 701                 }
 702
 703                 if (!(reply = dbus_message_new_method_return(message)))
 704                         goto oom;
 705
 706         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
 707                 char *client;
 708
 709                 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
 710                         dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
 711                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 712                 }
 713
 714                 free(client);
 715
 716                 if (!(reply = dbus_message_new_method_return(message)))
 717                         goto oom;
 718
 719         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
 720                 FILE *f;
 721                 char *dump = NULL;
 722                 size_t size;
 723
 724                 if (!(reply = dbus_message_new_method_return(message)))
 725                         goto oom;
 726
 727                 if (!(f = open_memstream(&dump, &size)))
 728                         goto oom;
 729
 730                 manager_dump_units(m, f, NULL);
 731                 manager_dump_jobs(m, f, NULL);
 732
 733                 if (ferror(f)) {
 734                         fclose(f);
 735                         free(dump);
 736                         goto oom;
 737                 }
 738
 739                 fclose(f);
 740
 741                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
 742                         free(dump);
 743                         goto oom;
 744                 }
 745
 746                 free(dump);
 747         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
 748                 const char *name;
 749                 dbus_bool_t cleanup;
 750                 Snapshot *s;
 751
 752                 if (!dbus_message_get_args(
 753                                     message,
 754                                     &error,
 755                                     DBUS_TYPE_STRING, &name,
 756                                     DBUS_TYPE_BOOLEAN, &cleanup,
 757                                     DBUS_TYPE_INVALID))
 758                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 759
 760                 if (name && name[0] == 0)
 761                         name = NULL;
 762
 763                 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
 764                         return bus_send_error_reply(m, connection, message, &error, r);
 765
 766                 if (!(reply = dbus_message_new_method_return(message)))
 767                         goto oom;
 768
 769                 if (!(path = unit_dbus_path(UNIT(s))))
 770                         goto oom;
 771
 772                 if (!dbus_message_append_args(
 773                                     reply,
 774                                     DBUS_TYPE_OBJECT_PATH, &path,
 775                                     DBUS_TYPE_INVALID))
 776                         goto oom;
 777
 778         } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
 779                 char *introspection = NULL;
 780                 FILE *f;
 781                 Iterator i;
 782                 Unit *u;
 783                 Job *j;
 784                 const char *k;
 785                 size_t size;
 786
 787                 if (!(reply = dbus_message_new_method_return(message)))
 788                         goto oom;
 789
 790                 /* We roll our own introspection code here, instead of
 791                  * relying on bus_default_message_handler() because we
 792                  * need to generate our introspection string
 793                  * dynamically. */
 794
 795                 if (!(f = open_memstream(&introspection, &size)))
 796                         goto oom;
 797
 798                 fputs(INTROSPECTION_BEGIN, f);
 799
 800                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 801                         char *p;
 802
 803                         if (k != u->meta.id)
 804                                 continue;
 805
 806                         if (!(p = bus_path_escape(k))) {
 807                                 fclose(f);
 808                                 free(introspection);
 809                                 goto oom;
 810                         }
 811
 812                         fprintf(f, "<node name=\"unit/%s\"/>", p);
 813                         free(p);
 814                 }
 815
 816                 HASHMAP_FOREACH(j, m->jobs, i)
 817                         fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
 818
 819                 fputs(INTROSPECTION_END, f);
 820
 821                 if (ferror(f)) {
 822                         fclose(f);
 823                         free(introspection);
 824                         goto oom;
 825                 }
 826
 827                 fclose(f);
 828
 829                 if (!introspection)
 830                         goto oom;
 831
 832                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
 833                         free(introspection);
 834                         goto oom;
 835                 }
 836
 837                 free(introspection);
 838
 839         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
 840
 841                 assert(!m->queued_message);
 842
 843                 /* Instead of sending the reply back right away, we
 844                  * just remember that we need to and then send it
 845                  * after the reload is finished. That way the caller
 846                  * knows when the reload finished. */
 847
 848                 if (!(m->queued_message = dbus_message_new_method_return(message)))
 849                         goto oom;
 850
 851                 m->queued_message_connection = connection;
 852                 m->exit_code = MANAGER_RELOAD;
 853
 854         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
 855
 856                 if (!(reply = dbus_message_new_method_return(message)))
 857                         goto oom;
 858
 859                 m->exit_code = MANAGER_REEXECUTE;
 860
 861         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
 862
 863                 if (m->running_as == MANAGER_SYSTEM) {
 864                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
 865                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 866                 }
 867
 868                 if (!(reply = dbus_message_new_method_return(message)))
 869                         goto oom;
 870
 871                 m->exit_code = MANAGER_EXIT;
 872
 873         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
 874
 875                 if (m->running_as != MANAGER_SYSTEM) {
 876                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
 877                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 878                 }
 879
 880                 if (!(reply = dbus_message_new_method_return(message)))
 881                         goto oom;
 882
 883                 m->exit_code = MANAGER_REBOOT;
 884
 885         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
 886
 887                 if (m->running_as != MANAGER_SYSTEM) {
 888                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
 889                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 890                 }
 891
 892                 if (!(reply = dbus_message_new_method_return(message)))
 893                         goto oom;
 894
 895                 m->exit_code = MANAGER_POWEROFF;
 896
 897         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
 898
 899                 if (m->running_as != MANAGER_SYSTEM) {
 900                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
 901                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 902                 }
 903
 904                 if (!(reply = dbus_message_new_method_return(message)))
 905                         goto oom;
 906
 907                 m->exit_code = MANAGER_HALT;
 908
 909         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
 910
 911                 if (m->running_as != MANAGER_SYSTEM) {
 912                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
 913                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 914                 }
 915
 916                 if (!(reply = dbus_message_new_method_return(message)))
 917                         goto oom;
 918
 919                 m->exit_code = MANAGER_KEXEC;
 920
 921         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
 922                 char **l = NULL, **e = NULL;
 923
 924                 if ((r = bus_parse_strv(message, &l)) < 0) {
 925                         if (r == -ENOMEM)
 926                                 goto oom;
 927
 928                         return bus_send_error_reply(m, connection, message, NULL, r);
 929                 }
 930
 931                 e = strv_env_merge(2, m->environment, l);
 932                 strv_free(l);
 933
 934                 if (!e)
 935                         goto oom;
 936
 937                 if (!(reply = dbus_message_new_method_return(message))) {
 938                         strv_free(e);
 939                         goto oom;
 940                 }
 941
 942                 strv_free(m->environment);
 943                 m->environment = e;
 944
 945         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
 946                 char **l = NULL, **e = NULL;
 947
 948                 if ((r = bus_parse_strv(message, &l)) < 0) {
 949                         if (r == -ENOMEM)
 950                                 goto oom;
 951
 952                         return bus_send_error_reply(m, connection, message, NULL, r);
 953                 }
 954
 955                 e = strv_env_delete(m->environment, 1, l);
 956                 strv_free(l);
 957
 958                 if (!e)
 959                         goto oom;
 960
 961                 if (!(reply = dbus_message_new_method_return(message)))
 962                         goto oom;
 963
 964                 strv_free(m->environment);
 965                 m->environment = e;
 966
 967         } else
 968                 return bus_default_message_handler(m, connection, message, NULL, properties);
 969
 970         if (job_type != _JOB_TYPE_INVALID) {
 971                 const char *name, *smode, *old_name = NULL;
 972                 JobMode mode;
 973                 Job *j;
 974                 Unit *u;
 975                 bool b;
 976
 977                 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 978                         b = dbus_message_get_args(
 979                                         message,
 980                                         &error,
 981                                         DBUS_TYPE_STRING, &old_name,
 982                                         DBUS_TYPE_STRING, &name,
 983                                         DBUS_TYPE_STRING, &smode,
 984                                         DBUS_TYPE_INVALID);
 985                 else
 986                         b = dbus_message_get_args(
 987                                         message,
 988                                         &error,
 989                                         DBUS_TYPE_STRING, &name,
 990                                         DBUS_TYPE_STRING, &smode,
 991                                         DBUS_TYPE_INVALID);
 992
 993                 if (!b)
 994                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 995
 996                 if (old_name)
 997                         if (!(u = manager_get_unit(m, old_name)) ||
 998                             !u->meta.job ||
 999                             u->meta.job->type != JOB_START) {
1000                                 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
1001                                 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
1002                         }
1003
1004
1005                 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1006                         dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1007                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1008                 }
1009
1010                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1011                         return bus_send_error_reply(m, connection, message, &error, r);
1012
1013                 if (reload_if_possible && unit_can_reload(u)) {
1014                         if (job_type == JOB_RESTART)
1015                                 job_type = JOB_RELOAD_OR_START;
1016                         else if (job_type == JOB_TRY_RESTART)
1017                                 job_type = JOB_RELOAD;
1018                 }
1019
1020                 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1021                     (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1022                     ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1023                      (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1024                         dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1025                         return bus_send_error_reply(m, connection, message, &error, -EPERM);
1026                 }
1027
1028                 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1029                         return bus_send_error_reply(m, connection, message, &error, r);
1030
1031                 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1032                         goto oom;
1033
1034                 j->bus = connection;
1035
1036                 if (!(reply = dbus_message_new_method_return(message)))
1037                         goto oom;
1038
1039                 if (!(path = job_dbus_path(j)))
1040                         goto oom;
1041
1042                 if (!dbus_message_append_args(
1043                                     reply,
1044                                     DBUS_TYPE_OBJECT_PATH, &path,
1045                                     DBUS_TYPE_INVALID))
1046                         goto oom;
1047         }
1048
1049         free(path);
1050
1051         if (reply) {
1052                 if (!dbus_connection_send(connection, reply, NULL))
1053                         goto oom;
1054
1055                 dbus_message_unref(reply);
1056         }
1057
1058         return DBUS_HANDLER_RESULT_HANDLED;
1059
1060 oom:
1061         free(path);
1062
1063         if (reply)
1064                 dbus_message_unref(reply);
1065
1066         dbus_error_free(&error);
1067
1068         return DBUS_HANDLER_RESULT_NEED_MEMORY;
1069 }
1070
1071 const DBusObjectPathVTable bus_manager_vtable = {
1072         .message_function = bus_manager_message_handler
1073 };