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