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 #include "build.h"
  30
  31 #define BUS_MANAGER_INTERFACE_BEGIN                                     \
  32         " <interface name=\"org.freedesktop.systemd1.Manager\">\n"
  33
  34 #define BUS_MANAGER_INTERFACE_METHODS                                   \
  35         "  <method name=\"GetUnit\">\n"                                 \
  36         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  37         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  38         "  </method>\n"                                                 \
  39         "  <method name=\"GetUnitByPID\">\n"                            \
  40         "   <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n"          \
  41         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  42         "  </method>\n"                                                 \
  43         "  <method name=\"LoadUnit\">\n"                                \
  44         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  45         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  46         "  </method>\n"                                                 \
  47         "  <method name=\"StartUnit\">\n"                               \
  48         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  49         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  50         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  51         "  </method>\n"                                                 \
  52         "  <method name=\"StartUnitReplace\">\n"                        \
  53         "   <arg name=\"old_unit\" type=\"s\" direction=\"in\"/>\n"     \
  54         "   <arg name=\"new_unit\" type=\"s\" direction=\"in\"/>\n"     \
  55         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  56         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  57         "  </method>\n"                                                 \
  58         "  <method name=\"StopUnit\">\n"                                \
  59         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  60         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  61         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  62         "  </method>\n"                                                 \
  63         "  <method name=\"ReloadUnit\">\n"                              \
  64         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  65         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  66         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  67         "  </method>\n"                                                 \
  68         "  <method name=\"RestartUnit\">\n"                             \
  69         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  70         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  71         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  72         "  </method>\n"                                                 \
  73         "  <method name=\"TryRestartUnit\">\n"                          \
  74         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  75         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  76         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  77         "  </method>\n"                                                 \
  78         "  <method name=\"ReloadOrRestartUnit\">\n"                     \
  79         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  80         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  81         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  82         "  </method>\n"                                                 \
  83         "  <method name=\"ReloadOrTryRestartUnit\">\n"                  \
  84         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  85         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  86         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  87         "  </method>\n"                                                 \
  88         "  <method name=\"KillUnit\">\n"                                \
  89         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  90         "   <arg name=\"who\" type=\"s\" direction=\"in\"/>\n"          \
  91         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  92         "   <arg name=\"signal\" type=\"i\" direction=\"in\"/>\n"       \
  93         "  </method>\n"                                                 \
  94         "  <method name=\"ResetFailedUnit\">\n"                         \
  95         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  96         "  </method>\n"                                                 \
  97         "  <method name=\"GetJob\">\n"                                  \
  98         "   <arg name=\"id\" type=\"u\" direction=\"in\"/>\n"           \
  99         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
 100         "  </method>\n"                                                 \
 101         "  <method name=\"ClearJobs\"/>\n"                              \
 102         "  <method name=\"ResetFailed\"/>\n"                            \
 103         "  <method name=\"ListUnits\">\n"                               \
 104         "   <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
 105         "  </method>\n"                                                 \
 106         "  <method name=\"ListJobs\">\n"                                \
 107         "   <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
 108         "  </method>\n"                                                 \
 109         "  <method name=\"Subscribe\"/>\n"                              \
 110         "  <method name=\"Unsubscribe\"/>\n"                            \
 111         "  <method name=\"Dump\"/>\n"                                   \
 112         "  <method name=\"CreateSnapshot\">\n"                          \
 113         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
 114         "   <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n"      \
 115         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
 116         "  </method>\n"                                                 \
 117         "  <method name=\"Reload\"/>\n"                                 \
 118         "  <method name=\"Reexecute\"/>\n"                              \
 119         "  <method name=\"Exit\"/>\n"                                   \
 120         "  <method name=\"Reboot\"/>\n"                                 \
 121         "  <method name=\"PowerOff\"/>\n"                               \
 122         "  <method name=\"Halt\"/>\n"                                   \
 123         "  <method name=\"KExec\"/>\n"                                  \
 124         "  <method name=\"SetEnvironment\">\n"                          \
 125         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 126         "  </method>\n"                                                 \
 127         "  <method name=\"UnsetEnvironment\">\n"                        \
 128         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 129         "  </method>\n"
 130
 131 #define BUS_MANAGER_INTERFACE_SIGNALS                                   \
 132         "  <signal name=\"UnitNew\">\n"                                 \
 133         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 134         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 135         "  </signal>\n"                                                 \
 136         "  <signal name=\"UnitRemoved\">\n"                             \
 137         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 138         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 139         "  </signal>\n"                                                 \
 140         "  <signal name=\"JobNew\">\n"                                  \
 141         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 142         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 143         "  </signal>\n"                                                 \
 144         "  <signal name=\"JobRemoved\">\n"                              \
 145         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 146         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 147         "   <arg name=\"result\" type=\"s\"/>\n"                        \
 148         "  </signal>"
 149
 150 #define BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 151         "  <property name=\"Version\" type=\"s\" access=\"read\"/>\n"   \
 152         "  <property name=\"Distribution\" type=\"s\" access=\"read\"/>\n" \
 153         "  <property name=\"Features\" type=\"s\" access=\"read\"/>\n"  \
 154         "  <property name=\"Tainted\" type=\"s\" access=\"read\"/>\n"   \
 155         "  <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
 156         "  <property name=\"InitRDTimestamp\" type=\"t\" access=\"read\"/>\n" \
 157         "  <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
 158         "  <property name=\"FinishTimestamp\" type=\"t\" access=\"read\"/>\n" \
 159         "  <property name=\"LogLevel\" type=\"s\" access=\"readwrite\"/>\n"  \
 160         "  <property name=\"LogTarget\" type=\"s\" access=\"readwrite\"/>\n" \
 161         "  <property name=\"NNames\" type=\"u\" access=\"read\"/>\n"    \
 162         "  <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n"     \
 163         "  <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
 164         "  <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
 165         "  <property name=\"Progress\" type=\"d\" access=\"read\"/>\n"  \
 166         "  <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
 167         "  <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
 168         "  <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
 169         "  <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
 170         "  <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
 171         "  <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
 172         "  <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
 173         "  <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n"  \
 174         "  <property name=\"DefaultControllers\" type=\"as\" access=\"read\"/>\n" \
 175         "  <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
 176         "  <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n"
 177
 178 #ifdef HAVE_SYSV_COMPAT
 179 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 180         "  <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
 181         "  <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
 182         "  <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
 183 #else
 184 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
 185 #endif
 186
 187 #define BUS_MANAGER_INTERFACE_END                                       \
 188         " </interface>\n"
 189
 190 #define BUS_MANAGER_INTERFACE                                           \
 191         BUS_MANAGER_INTERFACE_BEGIN                                     \
 192         BUS_MANAGER_INTERFACE_METHODS                                   \
 193         BUS_MANAGER_INTERFACE_SIGNALS                                   \
 194         BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 195         BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 196         BUS_MANAGER_INTERFACE_END
 197
 198 #define INTROSPECTION_BEGIN                                             \
 199         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
 200         "<node>\n"                                                      \
 201         BUS_MANAGER_INTERFACE                                           \
 202         BUS_PROPERTIES_INTERFACE                                        \
 203         BUS_PEER_INTERFACE                                              \
 204         BUS_INTROSPECTABLE_INTERFACE
 205
 206 #define INTROSPECTION_END                                               \
 207         "</node>\n"
 208
 209 #define INTERFACES_LIST                              \
 210         BUS_GENERIC_INTERFACES_LIST                  \
 211         "org.freedesktop.systemd1.Manager\0"
 212
 213 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
 214
 215 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
 216 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_exec_output, exec_output, ExecOutput);
 217
 218 static int bus_manager_append_tainted(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 219         const char *t;
 220         char buf[64] = "", *e = buf, *p = NULL;
 221
 222         assert(m);
 223         assert(i);
 224         assert(property);
 225
 226         if (path_is_mount_point("/usr") > 0 || dir_is_empty("/usr") > 0)
 227                 e = stpcpy(e, "usr-separate-fs");
 228
 229         if (readlink_malloc("/etc/mtab", &p) < 0) {
 230                 if (e != buf)
 231                         e = stpcpy(e, " ");
 232                 e = stpcpy(e, "etc-mtab-not-symlink");
 233         } else
 234                 free(p);
 235
 236         t = buf;
 237
 238         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 239                 return -ENOMEM;
 240
 241         return 0;
 242 }
 243
 244 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 245         const char *t;
 246
 247         assert(m);
 248         assert(i);
 249         assert(property);
 250
 251         t = log_target_to_string(log_get_target());
 252
 253         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 254                 return -ENOMEM;
 255
 256         return 0;
 257 }
 258
 259 static int bus_manager_set_log_target(Manager *m, DBusMessageIter *i, const char *property) {
 260         const char *t;
 261
 262         assert(m);
 263         assert(i);
 264         assert(property);
 265
 266         dbus_message_iter_get_basic(i, &t);
 267
 268         return log_set_target_from_string(t);
 269 }
 270
 271 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 272         const char *t;
 273
 274         assert(m);
 275         assert(i);
 276         assert(property);
 277
 278         t = log_level_to_string(log_get_max_level());
 279
 280         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 281                 return -ENOMEM;
 282
 283         return 0;
 284 }
 285
 286 static int bus_manager_set_log_level(Manager *m, DBusMessageIter *i, const char *property) {
 287         const char *t;
 288
 289         assert(m);
 290         assert(i);
 291         assert(property);
 292
 293         dbus_message_iter_get_basic(i, &t);
 294
 295         return log_set_max_level_from_string(t);
 296 }
 297
 298 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 299         uint32_t u;
 300
 301         assert(m);
 302         assert(i);
 303         assert(property);
 304
 305         u = hashmap_size(m->units);
 306
 307         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 308                 return -ENOMEM;
 309
 310         return 0;
 311 }
 312
 313 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 314         uint32_t u;
 315
 316         assert(m);
 317         assert(i);
 318         assert(property);
 319
 320         u = hashmap_size(m->jobs);
 321
 322         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 323                 return -ENOMEM;
 324
 325         return 0;
 326 }
 327
 328 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 329         double d;
 330
 331         assert(m);
 332         assert(i);
 333         assert(property);
 334
 335         if (dual_timestamp_is_set(&m->finish_timestamp))
 336                 d = 1.0;
 337         else
 338                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 339
 340         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
 341                 return -ENOMEM;
 342
 343         return 0;
 344 }
 345
 346 static const char *message_get_sender_with_fallback(DBusMessage *m) {
 347         const char *s;
 348
 349         assert(m);
 350
 351         if ((s = dbus_message_get_sender(m)))
 352                 return s;
 353
 354         /* When the message came in from a direct connection the
 355          * message will have no sender. We fix that here. */
 356
 357         return ":no-sender";
 358 }
 359
 360 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
 361         Manager *m = data;
 362
 363         const BusProperty properties[] = {
 364                 { "org.freedesktop.systemd1.Manager", "Version",       bus_property_append_string,    "s",  PACKAGE_STRING     },
 365                 { "org.freedesktop.systemd1.Manager", "Distribution",  bus_property_append_string,    "s",  DISTRIBUTION       },
 366                 { "org.freedesktop.systemd1.Manager", "Features",      bus_property_append_string,    "s",  SYSTEMD_FEATURES   },
 367                 { "org.freedesktop.systemd1.Manager", "RunningAs",     bus_manager_append_running_as, "s",  &m->running_as     },
 368                 { "org.freedesktop.systemd1.Manager", "Tainted",       bus_manager_append_tainted,    "s",  m                  },
 369                 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64,  "t",  &m->initrd_timestamp.realtime },
 370                 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t",  &m->startup_timestamp.realtime },
 371                 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64,  "t",  &m->finish_timestamp.realtime },
 372                 { "org.freedesktop.systemd1.Manager", "LogLevel",      bus_manager_append_log_level,  "s",  NULL,               bus_manager_set_log_level},
 373                 { "org.freedesktop.systemd1.Manager", "LogTarget",     bus_manager_append_log_target, "s",  NULL,               bus_manager_set_log_target},
 374                 { "org.freedesktop.systemd1.Manager", "NNames",        bus_manager_append_n_names,    "u",  NULL               },
 375                 { "org.freedesktop.systemd1.Manager", "NJobs",         bus_manager_append_n_jobs,     "u",  NULL               },
 376                 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32,    "u",  &m->n_installed_jobs },
 377                 { "org.freedesktop.systemd1.Manager", "NFailedJobs",   bus_property_append_uint32,    "u",  &m->n_failed_jobs  },
 378                 { "org.freedesktop.systemd1.Manager", "Progress",      bus_manager_append_progress,   "d",  NULL               },
 379                 { "org.freedesktop.systemd1.Manager", "Environment",   bus_property_append_strv,      "as", m->environment     },
 380                 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn",  bus_property_append_bool,      "b",  &m->confirm_spawn  },
 381                 { "org.freedesktop.systemd1.Manager", "ShowStatus",    bus_property_append_bool,      "b",  &m->show_status    },
 382                 { "org.freedesktop.systemd1.Manager", "UnitPath",      bus_property_append_strv,      "as", m->lookup_paths.unit_path },
 383                 { "org.freedesktop.systemd1.Manager", "NotifySocket",  bus_property_append_string,    "s",  m->notify_socket   },
 384                 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
 385                 { "org.freedesktop.systemd1.Manager", "MountAuto",     bus_property_append_bool,      "b",  &m->mount_auto     },
 386                 { "org.freedesktop.systemd1.Manager", "SwapAuto",      bus_property_append_bool,      "b",  &m->swap_auto      },
 387                 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
 388                 { "org.freedesktop.systemd1.Manager", "DefaultStandardOutput", bus_manager_append_exec_output, "s", &m->default_std_output },
 389                 { "org.freedesktop.systemd1.Manager", "DefaultStandardError",  bus_manager_append_exec_output, "s", &m->default_std_error  },
 390 #ifdef HAVE_SYSV_COMPAT
 391                 { "org.freedesktop.systemd1.Manager", "SysVConsole",   bus_property_append_bool,      "b",  &m->sysv_console   },
 392                 { "org.freedesktop.systemd1.Manager", "SysVInitPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvinit_path },
 393                 { "org.freedesktop.systemd1.Manager", "SysVRcndPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvrcnd_path },
 394 #endif
 395                 { NULL, NULL, NULL, NULL, NULL }
 396         };
 397
 398         int r;
 399         DBusError error;
 400         DBusMessage *reply = NULL;
 401         char * path = NULL;
 402         JobType job_type = _JOB_TYPE_INVALID;
 403         bool reload_if_possible = false;
 404
 405         assert(connection);
 406         assert(message);
 407         assert(m);
 408
 409         dbus_error_init(&error);
 410
 411         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
 412                 const char *name;
 413                 Unit *u;
 414
 415                 if (!dbus_message_get_args(
 416                                     message,
 417                                     &error,
 418                                     DBUS_TYPE_STRING, &name,
 419                                     DBUS_TYPE_INVALID))
 420                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 421
 422                 if (!(u = manager_get_unit(m, name))) {
 423                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 424                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 425                 }
 426
 427                 if (!(reply = dbus_message_new_method_return(message)))
 428                         goto oom;
 429
 430                 if (!(path = unit_dbus_path(u)))
 431                         goto oom;
 432
 433                 if (!dbus_message_append_args(
 434                                     reply,
 435                                     DBUS_TYPE_OBJECT_PATH, &path,
 436                                     DBUS_TYPE_INVALID))
 437                         goto oom;
 438         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
 439                 Unit *u;
 440                 uint32_t pid;
 441
 442                 if (!dbus_message_get_args(
 443                                     message,
 444                                     &error,
 445                                     DBUS_TYPE_UINT32, &pid,
 446                                     DBUS_TYPE_INVALID))
 447                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 448
 449                 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
 450                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
 451                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 452                 }
 453
 454                 if (!(reply = dbus_message_new_method_return(message)))
 455                         goto oom;
 456
 457                 if (!(path = unit_dbus_path(u)))
 458                         goto oom;
 459
 460                 if (!dbus_message_append_args(
 461                                     reply,
 462                                     DBUS_TYPE_OBJECT_PATH, &path,
 463                                     DBUS_TYPE_INVALID))
 464                         goto oom;
 465         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
 466                 const char *name;
 467                 Unit *u;
 468
 469                 if (!dbus_message_get_args(
 470                                     message,
 471                                     &error,
 472                                     DBUS_TYPE_STRING, &name,
 473                                     DBUS_TYPE_INVALID))
 474                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 475
 476                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
 477                         return bus_send_error_reply(m, connection, message, &error, r);
 478
 479                 if (!(reply = dbus_message_new_method_return(message)))
 480                         goto oom;
 481
 482                 if (!(path = unit_dbus_path(u)))
 483                         goto oom;
 484
 485                 if (!dbus_message_append_args(
 486                                     reply,
 487                                     DBUS_TYPE_OBJECT_PATH, &path,
 488                                     DBUS_TYPE_INVALID))
 489                         goto oom;
 490
 491         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
 492                 job_type = JOB_START;
 493         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 494                 job_type = JOB_START;
 495         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
 496                 job_type = JOB_STOP;
 497         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
 498                 job_type = JOB_RELOAD;
 499         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
 500                 job_type = JOB_RESTART;
 501         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
 502                 job_type = JOB_TRY_RESTART;
 503         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
 504                 reload_if_possible = true;
 505                 job_type = JOB_RESTART;
 506         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
 507                 reload_if_possible = true;
 508                 job_type = JOB_TRY_RESTART;
 509         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
 510                 const char *name, *swho, *smode;
 511                 int32_t signo;
 512                 Unit *u;
 513                 KillMode mode;
 514                 KillWho who;
 515
 516                 if (!dbus_message_get_args(
 517                                     message,
 518                                     &error,
 519                                     DBUS_TYPE_STRING, &name,
 520                                     DBUS_TYPE_STRING, &swho,
 521                                     DBUS_TYPE_STRING, &smode,
 522                                     DBUS_TYPE_INT32, &signo,
 523                                     DBUS_TYPE_INVALID))
 524                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 525
 526                 if ((mode = kill_mode_from_string(smode)) < 0 ||
 527                     (who = kill_who_from_string(swho)) < 0 ||
 528                     signo <= 0 ||
 529                     signo >= _NSIG)
 530                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 531
 532                 if (!(u = manager_get_unit(m, name))) {
 533                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 534                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 535                 }
 536
 537                 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
 538                         return bus_send_error_reply(m, connection, message, &error, r);
 539
 540                 if (!(reply = dbus_message_new_method_return(message)))
 541                         goto oom;
 542
 543         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
 544                 uint32_t id;
 545                 Job *j;
 546
 547                 if (!dbus_message_get_args(
 548                                     message,
 549                                     &error,
 550                                     DBUS_TYPE_UINT32, &id,
 551                                     DBUS_TYPE_INVALID))
 552                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 553
 554                 if (!(j = manager_get_job(m, id))) {
 555                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
 556                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 557                 }
 558
 559                 if (!(reply = dbus_message_new_method_return(message)))
 560                         goto oom;
 561
 562                 if (!(path = job_dbus_path(j)))
 563                         goto oom;
 564
 565                 if (!dbus_message_append_args(
 566                                     reply,
 567                                     DBUS_TYPE_OBJECT_PATH, &path,
 568                                     DBUS_TYPE_INVALID))
 569                         goto oom;
 570
 571         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
 572
 573                 manager_clear_jobs(m);
 574
 575                 if (!(reply = dbus_message_new_method_return(message)))
 576                         goto oom;
 577
 578         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
 579
 580                 manager_reset_failed(m);
 581
 582                 if (!(reply = dbus_message_new_method_return(message)))
 583                         goto oom;
 584
 585         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
 586                 const char *name;
 587                 Unit *u;
 588
 589                 if (!dbus_message_get_args(
 590                                     message,
 591                                     &error,
 592                                     DBUS_TYPE_STRING, &name,
 593                                     DBUS_TYPE_INVALID))
 594                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 595
 596                 if (!(u = manager_get_unit(m, name))) {
 597                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 598                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 599                 }
 600
 601                 unit_reset_failed(u);
 602
 603                 if (!(reply = dbus_message_new_method_return(message)))
 604                         goto oom;
 605
 606         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
 607                 DBusMessageIter iter, sub;
 608                 Iterator i;
 609                 Unit *u;
 610                 const char *k;
 611
 612                 if (!(reply = dbus_message_new_method_return(message)))
 613                         goto oom;
 614
 615                 dbus_message_iter_init_append(reply, &iter);
 616
 617                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
 618                         goto oom;
 619
 620                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 621                         char *u_path, *j_path;
 622                         const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
 623                         DBusMessageIter sub2;
 624                         uint32_t job_id;
 625                         Unit *f;
 626
 627                         if (k != u->meta.id)
 628                                 continue;
 629
 630                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 631                                 goto oom;
 632
 633                         description = unit_description(u);
 634                         load_state = unit_load_state_to_string(u->meta.load_state);
 635                         active_state = unit_active_state_to_string(unit_active_state(u));
 636                         sub_state = unit_sub_state_to_string(u);
 637
 638                         f = unit_following(u);
 639                         following = f ? f->meta.id : "";
 640
 641                         if (!(u_path = unit_dbus_path(u)))
 642                                 goto oom;
 643
 644                         if (u->meta.job) {
 645                                 job_id = (uint32_t) u->meta.job->id;
 646
 647                                 if (!(j_path = job_dbus_path(u->meta.job))) {
 648                                         free(u_path);
 649                                         goto oom;
 650                                 }
 651
 652                                 sjob_type = job_type_to_string(u->meta.job->type);
 653                         } else {
 654                                 job_id = 0;
 655                                 j_path = u_path;
 656                                 sjob_type = "";
 657                         }
 658
 659                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
 660                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
 661                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
 662                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
 663                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
 664                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
 665                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
 666                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
 667                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
 668                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
 669                                 free(u_path);
 670                                 if (u->meta.job)
 671                                         free(j_path);
 672                                 goto oom;
 673                         }
 674
 675                         free(u_path);
 676                         if (u->meta.job)
 677                                 free(j_path);
 678
 679                         if (!dbus_message_iter_close_container(&sub, &sub2))
 680                                 goto oom;
 681                 }
 682
 683                 if (!dbus_message_iter_close_container(&iter, &sub))
 684                         goto oom;
 685
 686         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
 687                 DBusMessageIter iter, sub;
 688                 Iterator i;
 689                 Job *j;
 690
 691                 if (!(reply = dbus_message_new_method_return(message)))
 692                         goto oom;
 693
 694                 dbus_message_iter_init_append(reply, &iter);
 695
 696                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
 697                         goto oom;
 698
 699                 HASHMAP_FOREACH(j, m->jobs, i) {
 700                         char *u_path, *j_path;
 701                         const char *state, *type;
 702                         uint32_t id;
 703                         DBusMessageIter sub2;
 704
 705                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 706                                 goto oom;
 707
 708                         id = (uint32_t) j->id;
 709                         state = job_state_to_string(j->state);
 710                         type = job_type_to_string(j->type);
 711
 712                         if (!(j_path = job_dbus_path(j)))
 713                                 goto oom;
 714
 715                         if (!(u_path = unit_dbus_path(j->unit))) {
 716                                 free(j_path);
 717                                 goto oom;
 718                         }
 719
 720                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
 721                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
 722                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
 723                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
 724                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
 725                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
 726                                 free(j_path);
 727                                 free(u_path);
 728                                 goto oom;
 729                         }
 730
 731                         free(j_path);
 732                         free(u_path);
 733
 734                         if (!dbus_message_iter_close_container(&sub, &sub2))
 735                                 goto oom;
 736                 }
 737
 738                 if (!dbus_message_iter_close_container(&iter, &sub))
 739                         goto oom;
 740
 741         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
 742                 char *client;
 743                 Set *s;
 744
 745                 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
 746                         if (!(s = set_new(string_hash_func, string_compare_func)))
 747                                 goto oom;
 748
 749                         if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
 750                                 set_free(s);
 751                                 goto oom;
 752                         }
 753                 }
 754
 755                 if (!(client = strdup(message_get_sender_with_fallback(message))))
 756                         goto oom;
 757
 758                 if ((r = set_put(s, client)) < 0) {
 759                         free(client);
 760                         return bus_send_error_reply(m, connection, message, NULL, r);
 761                 }
 762
 763                 if (!(reply = dbus_message_new_method_return(message)))
 764                         goto oom;
 765
 766         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
 767                 char *client;
 768
 769                 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
 770                         dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
 771                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 772                 }
 773
 774                 free(client);
 775
 776                 if (!(reply = dbus_message_new_method_return(message)))
 777                         goto oom;
 778
 779         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
 780                 FILE *f;
 781                 char *dump = NULL;
 782                 size_t size;
 783
 784                 if (!(reply = dbus_message_new_method_return(message)))
 785                         goto oom;
 786
 787                 if (!(f = open_memstream(&dump, &size)))
 788                         goto oom;
 789
 790                 manager_dump_units(m, f, NULL);
 791                 manager_dump_jobs(m, f, NULL);
 792
 793                 if (ferror(f)) {
 794                         fclose(f);
 795                         free(dump);
 796                         goto oom;
 797                 }
 798
 799                 fclose(f);
 800
 801                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
 802                         free(dump);
 803                         goto oom;
 804                 }
 805
 806                 free(dump);
 807         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
 808                 const char *name;
 809                 dbus_bool_t cleanup;
 810                 Snapshot *s;
 811
 812                 if (!dbus_message_get_args(
 813                                     message,
 814                                     &error,
 815                                     DBUS_TYPE_STRING, &name,
 816                                     DBUS_TYPE_BOOLEAN, &cleanup,
 817                                     DBUS_TYPE_INVALID))
 818                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 819
 820                 if (name && name[0] == 0)
 821                         name = NULL;
 822
 823                 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
 824                         return bus_send_error_reply(m, connection, message, &error, r);
 825
 826                 if (!(reply = dbus_message_new_method_return(message)))
 827                         goto oom;
 828
 829                 if (!(path = unit_dbus_path(UNIT(s))))
 830                         goto oom;
 831
 832                 if (!dbus_message_append_args(
 833                                     reply,
 834                                     DBUS_TYPE_OBJECT_PATH, &path,
 835                                     DBUS_TYPE_INVALID))
 836                         goto oom;
 837
 838         } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
 839                 char *introspection = NULL;
 840                 FILE *f;
 841                 Iterator i;
 842                 Unit *u;
 843                 Job *j;
 844                 const char *k;
 845                 size_t size;
 846
 847                 if (!(reply = dbus_message_new_method_return(message)))
 848                         goto oom;
 849
 850                 /* We roll our own introspection code here, instead of
 851                  * relying on bus_default_message_handler() because we
 852                  * need to generate our introspection string
 853                  * dynamically. */
 854
 855                 if (!(f = open_memstream(&introspection, &size)))
 856                         goto oom;
 857
 858                 fputs(INTROSPECTION_BEGIN, f);
 859
 860                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 861                         char *p;
 862
 863                         if (k != u->meta.id)
 864                                 continue;
 865
 866                         if (!(p = bus_path_escape(k))) {
 867                                 fclose(f);
 868                                 free(introspection);
 869                                 goto oom;
 870                         }
 871
 872                         fprintf(f, "<node name=\"unit/%s\"/>", p);
 873                         free(p);
 874                 }
 875
 876                 HASHMAP_FOREACH(j, m->jobs, i)
 877                         fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
 878
 879                 fputs(INTROSPECTION_END, f);
 880
 881                 if (ferror(f)) {
 882                         fclose(f);
 883                         free(introspection);
 884                         goto oom;
 885                 }
 886
 887                 fclose(f);
 888
 889                 if (!introspection)
 890                         goto oom;
 891
 892                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
 893                         free(introspection);
 894                         goto oom;
 895                 }
 896
 897                 free(introspection);
 898
 899         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
 900
 901                 assert(!m->queued_message);
 902
 903                 /* Instead of sending the reply back right away, we
 904                  * just remember that we need to and then send it
 905                  * after the reload is finished. That way the caller
 906                  * knows when the reload finished. */
 907
 908                 if (!(m->queued_message = dbus_message_new_method_return(message)))
 909                         goto oom;
 910
 911                 m->queued_message_connection = connection;
 912                 m->exit_code = MANAGER_RELOAD;
 913
 914         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
 915
 916                 if (!(reply = dbus_message_new_method_return(message)))
 917                         goto oom;
 918
 919                 m->exit_code = MANAGER_REEXECUTE;
 920
 921         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
 922
 923                 if (m->running_as == MANAGER_SYSTEM) {
 924                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
 925                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 926                 }
 927
 928                 if (!(reply = dbus_message_new_method_return(message)))
 929                         goto oom;
 930
 931                 m->exit_code = MANAGER_EXIT;
 932
 933         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
 934
 935                 if (m->running_as != MANAGER_SYSTEM) {
 936                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
 937                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 938                 }
 939
 940                 if (!(reply = dbus_message_new_method_return(message)))
 941                         goto oom;
 942
 943                 m->exit_code = MANAGER_REBOOT;
 944
 945         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
 946
 947                 if (m->running_as != MANAGER_SYSTEM) {
 948                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
 949                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 950                 }
 951
 952                 if (!(reply = dbus_message_new_method_return(message)))
 953                         goto oom;
 954
 955                 m->exit_code = MANAGER_POWEROFF;
 956
 957         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
 958
 959                 if (m->running_as != MANAGER_SYSTEM) {
 960                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
 961                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 962                 }
 963
 964                 if (!(reply = dbus_message_new_method_return(message)))
 965                         goto oom;
 966
 967                 m->exit_code = MANAGER_HALT;
 968
 969         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
 970
 971                 if (m->running_as != MANAGER_SYSTEM) {
 972                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
 973                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 974                 }
 975
 976                 if (!(reply = dbus_message_new_method_return(message)))
 977                         goto oom;
 978
 979                 m->exit_code = MANAGER_KEXEC;
 980
 981         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
 982                 char **l = NULL, **e = NULL;
 983
 984                 if ((r = bus_parse_strv(message, &l)) < 0) {
 985                         if (r == -ENOMEM)
 986                                 goto oom;
 987
 988                         return bus_send_error_reply(m, connection, message, NULL, r);
 989                 }
 990
 991                 e = strv_env_merge(2, m->environment, l);
 992                 strv_free(l);
 993
 994                 if (!e)
 995                         goto oom;
 996
 997                 if (!(reply = dbus_message_new_method_return(message))) {
 998                         strv_free(e);
 999                         goto oom;
1000                 }
1001
1002                 strv_free(m->environment);
1003                 m->environment = e;
1004
1005         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
1006                 char **l = NULL, **e = NULL;
1007
1008                 if ((r = bus_parse_strv(message, &l)) < 0) {
1009                         if (r == -ENOMEM)
1010                                 goto oom;
1011
1012                         return bus_send_error_reply(m, connection, message, NULL, r);
1013                 }
1014
1015                 e = strv_env_delete(m->environment, 1, l);
1016                 strv_free(l);
1017
1018                 if (!e)
1019                         goto oom;
1020
1021                 if (!(reply = dbus_message_new_method_return(message)))
1022                         goto oom;
1023
1024                 strv_free(m->environment);
1025                 m->environment = e;
1026
1027         } else
1028                 return bus_default_message_handler(m, connection, message, NULL, INTERFACES_LIST, properties);
1029
1030         if (job_type != _JOB_TYPE_INVALID) {
1031                 const char *name, *smode, *old_name = NULL;
1032                 JobMode mode;
1033                 Job *j;
1034                 Unit *u;
1035                 bool b;
1036
1037                 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
1038                         b = dbus_message_get_args(
1039                                         message,
1040                                         &error,
1041                                         DBUS_TYPE_STRING, &old_name,
1042                                         DBUS_TYPE_STRING, &name,
1043                                         DBUS_TYPE_STRING, &smode,
1044                                         DBUS_TYPE_INVALID);
1045                 else
1046                         b = dbus_message_get_args(
1047                                         message,
1048                                         &error,
1049                                         DBUS_TYPE_STRING, &name,
1050                                         DBUS_TYPE_STRING, &smode,
1051                                         DBUS_TYPE_INVALID);
1052
1053                 if (!b)
1054                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1055
1056                 if (old_name)
1057                         if (!(u = manager_get_unit(m, old_name)) ||
1058                             !u->meta.job ||
1059                             u->meta.job->type != JOB_START) {
1060                                 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
1061                                 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
1062                         }
1063
1064
1065                 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1066                         dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1067                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1068                 }
1069
1070                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1071                         return bus_send_error_reply(m, connection, message, &error, r);
1072
1073                 if (reload_if_possible && unit_can_reload(u)) {
1074                         if (job_type == JOB_RESTART)
1075                                 job_type = JOB_RELOAD_OR_START;
1076                         else if (job_type == JOB_TRY_RESTART)
1077                                 job_type = JOB_RELOAD;
1078                 }
1079
1080                 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1081                     (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1082                     ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1083                      (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1084                         dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1085                         return bus_send_error_reply(m, connection, message, &error, -EPERM);
1086                 }
1087
1088                 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1089                         return bus_send_error_reply(m, connection, message, &error, r);
1090
1091                 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1092                         goto oom;
1093
1094                 j->bus = connection;
1095
1096                 if (!(reply = dbus_message_new_method_return(message)))
1097                         goto oom;
1098
1099                 if (!(path = job_dbus_path(j)))
1100                         goto oom;
1101
1102                 if (!dbus_message_append_args(
1103                                     reply,
1104                                     DBUS_TYPE_OBJECT_PATH, &path,
1105                                     DBUS_TYPE_INVALID))
1106                         goto oom;
1107         }
1108
1109         free(path);
1110
1111         if (reply) {
1112                 if (!dbus_connection_send(connection, reply, NULL))
1113                         goto oom;
1114
1115                 dbus_message_unref(reply);
1116         }
1117
1118         return DBUS_HANDLER_RESULT_HANDLED;
1119
1120 oom:
1121         free(path);
1122
1123         if (reply)
1124                 dbus_message_unref(reply);
1125
1126         dbus_error_free(&error);
1127
1128         return DBUS_HANDLER_RESULT_NEED_MEMORY;
1129 }
1130
1131 const DBusObjectPathVTable bus_manager_vtable = {
1132         .message_function = bus_manager_message_handler
1133 };