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 #include <unistd.h>
  24
  25 #include "dbus.h"
  26 #include "log.h"
  27 #include "dbus-manager.h"
  28 #include "strv.h"
  29 #include "bus-errors.h"
  30 #include "build.h"
  31
  32 #define BUS_MANAGER_INTERFACE_BEGIN                                     \
  33         " <interface name=\"org.freedesktop.systemd1.Manager\">\n"
  34
  35 #define BUS_MANAGER_INTERFACE_METHODS                                   \
  36         "  <method name=\"GetUnit\">\n"                                 \
  37         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  38         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  39         "  </method>\n"                                                 \
  40         "  <method name=\"GetUnitByPID\">\n"                            \
  41         "   <arg name=\"pid\" type=\"u\" direction=\"in\"/>\n"          \
  42         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  43         "  </method>\n"                                                 \
  44         "  <method name=\"LoadUnit\">\n"                                \
  45         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  46         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
  47         "  </method>\n"                                                 \
  48         "  <method name=\"StartUnit\">\n"                               \
  49         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  50         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  51         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  52         "  </method>\n"                                                 \
  53         "  <method name=\"StartUnitReplace\">\n"                        \
  54         "   <arg name=\"old_unit\" type=\"s\" direction=\"in\"/>\n"     \
  55         "   <arg name=\"new_unit\" type=\"s\" direction=\"in\"/>\n"     \
  56         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  57         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  58         "  </method>\n"                                                 \
  59         "  <method name=\"StopUnit\">\n"                                \
  60         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  61         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  62         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  63         "  </method>\n"                                                 \
  64         "  <method name=\"ReloadUnit\">\n"                              \
  65         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  66         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  67         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  68         "  </method>\n"                                                 \
  69         "  <method name=\"RestartUnit\">\n"                             \
  70         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  71         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  72         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  73         "  </method>\n"                                                 \
  74         "  <method name=\"TryRestartUnit\">\n"                          \
  75         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  76         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  77         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  78         "  </method>\n"                                                 \
  79         "  <method name=\"ReloadOrRestartUnit\">\n"                     \
  80         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  81         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  82         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  83         "  </method>\n"                                                 \
  84         "  <method name=\"ReloadOrTryRestartUnit\">\n"                  \
  85         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  86         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  87         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
  88         "  </method>\n"                                                 \
  89         "  <method name=\"KillUnit\">\n"                                \
  90         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  91         "   <arg name=\"who\" type=\"s\" direction=\"in\"/>\n"          \
  92         "   <arg name=\"mode\" type=\"s\" direction=\"in\"/>\n"         \
  93         "   <arg name=\"signal\" type=\"i\" direction=\"in\"/>\n"       \
  94         "  </method>\n"                                                 \
  95         "  <method name=\"ResetFailedUnit\">\n"                         \
  96         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
  97         "  </method>\n"                                                 \
  98         "  <method name=\"GetJob\">\n"                                  \
  99         "   <arg name=\"id\" type=\"u\" direction=\"in\"/>\n"           \
 100         "   <arg name=\"job\" type=\"o\" direction=\"out\"/>\n"         \
 101         "  </method>\n"                                                 \
 102         "  <method name=\"ClearJobs\"/>\n"                              \
 103         "  <method name=\"ResetFailed\"/>\n"                            \
 104         "  <method name=\"ListUnits\">\n"                               \
 105         "   <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
 106         "  </method>\n"                                                 \
 107         "  <method name=\"ListJobs\">\n"                                \
 108         "   <arg name=\"jobs\" type=\"a(usssoo)\" direction=\"out\"/>\n" \
 109         "  </method>\n"                                                 \
 110         "  <method name=\"Subscribe\"/>\n"                              \
 111         "  <method name=\"Unsubscribe\"/>\n"                            \
 112         "  <method name=\"Dump\"/>\n"                                   \
 113         "  <method name=\"CreateSnapshot\">\n"                          \
 114         "   <arg name=\"name\" type=\"s\" direction=\"in\"/>\n"         \
 115         "   <arg name=\"cleanup\" type=\"b\" direction=\"in\"/>\n"      \
 116         "   <arg name=\"unit\" type=\"o\" direction=\"out\"/>\n"        \
 117         "  </method>\n"                                                 \
 118         "  <method name=\"Reload\"/>\n"                                 \
 119         "  <method name=\"Reexecute\"/>\n"                              \
 120         "  <method name=\"Exit\"/>\n"                                   \
 121         "  <method name=\"Reboot\"/>\n"                                 \
 122         "  <method name=\"PowerOff\"/>\n"                               \
 123         "  <method name=\"Halt\"/>\n"                                   \
 124         "  <method name=\"KExec\"/>\n"                                  \
 125         "  <method name=\"SetEnvironment\">\n"                          \
 126         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 127         "  </method>\n"                                                 \
 128         "  <method name=\"UnsetEnvironment\">\n"                        \
 129         "   <arg name=\"names\" type=\"as\" direction=\"in\"/>\n"       \
 130         "  </method>\n"
 131
 132 #define BUS_MANAGER_INTERFACE_SIGNALS                                   \
 133         "  <signal name=\"UnitNew\">\n"                                 \
 134         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 135         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 136         "  </signal>\n"                                                 \
 137         "  <signal name=\"UnitRemoved\">\n"                             \
 138         "   <arg name=\"id\" type=\"s\"/>\n"                            \
 139         "   <arg name=\"unit\" type=\"o\"/>\n"                          \
 140         "  </signal>\n"                                                 \
 141         "  <signal name=\"JobNew\">\n"                                  \
 142         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 143         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 144         "  </signal>\n"                                                 \
 145         "  <signal name=\"JobRemoved\">\n"                              \
 146         "   <arg name=\"id\" type=\"u\"/>\n"                            \
 147         "   <arg name=\"job\" type=\"o\"/>\n"                           \
 148         "   <arg name=\"result\" type=\"s\"/>\n"                        \
 149         "  </signal>"
 150
 151 #define BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 152         "  <property name=\"Version\" type=\"s\" access=\"read\"/>\n"   \
 153         "  <property name=\"Distribution\" type=\"s\" access=\"read\"/>\n" \
 154         "  <property name=\"Features\" type=\"s\" access=\"read\"/>\n"  \
 155         "  <property name=\"Tainted\" type=\"s\" access=\"read\"/>\n"   \
 156         "  <property name=\"RunningAs\" type=\"s\" access=\"read\"/>\n" \
 157         "  <property name=\"InitRDTimestamp\" type=\"t\" access=\"read\"/>\n" \
 158         "  <property name=\"InitRDTimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
 159         "  <property name=\"StartupTimestamp\" type=\"t\" access=\"read\"/>\n" \
 160         "  <property name=\"StartupTimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
 161         "  <property name=\"FinishTimestamp\" type=\"t\" access=\"read\"/>\n" \
 162         "  <property name=\"FinishTimestampMonotonic\" type=\"t\" access=\"read\"/>\n" \
 163         "  <property name=\"LogLevel\" type=\"s\" access=\"readwrite\"/>\n"  \
 164         "  <property name=\"LogTarget\" type=\"s\" access=\"readwrite\"/>\n" \
 165         "  <property name=\"NNames\" type=\"u\" access=\"read\"/>\n"    \
 166         "  <property name=\"NJobs\" type=\"u\" access=\"read\"/>\n"     \
 167         "  <property name=\"NInstalledJobs\" type=\"u\" access=\"read\"/>\n" \
 168         "  <property name=\"NFailedJobs\" type=\"u\" access=\"read\"/>\n" \
 169         "  <property name=\"Progress\" type=\"d\" access=\"read\"/>\n"  \
 170         "  <property name=\"Environment\" type=\"as\" access=\"read\"/>\n" \
 171         "  <property name=\"ConfirmSpawn\" type=\"b\" access=\"read\"/>\n" \
 172         "  <property name=\"ShowStatus\" type=\"b\" access=\"read\"/>\n" \
 173         "  <property name=\"UnitPath\" type=\"as\" access=\"read\"/>\n" \
 174         "  <property name=\"NotifySocket\" type=\"s\" access=\"read\"/>\n" \
 175         "  <property name=\"ControlGroupHierarchy\" type=\"s\" access=\"read\"/>\n" \
 176         "  <property name=\"MountAuto\" type=\"b\" access=\"read\"/>\n" \
 177         "  <property name=\"SwapAuto\" type=\"b\" access=\"read\"/>\n"  \
 178         "  <property name=\"DefaultControllers\" type=\"as\" access=\"read\"/>\n" \
 179         "  <property name=\"DefaultStandardOutput\" type=\"s\" access=\"read\"/>\n" \
 180         "  <property name=\"DefaultStandardError\" type=\"s\" access=\"read\"/>\n"
 181
 182 #ifdef HAVE_SYSV_COMPAT
 183 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 184         "  <property name=\"SysVConsole\" type=\"b\" access=\"read\"/>\n" \
 185         "  <property name=\"SysVInitPath\" type=\"as\" access=\"read\"/>\n" \
 186         "  <property name=\"SysVRcndPath\" type=\"as\" access=\"read\"/>\n"
 187 #else
 188 #define BUS_MANAGER_INTERFACE_PROPERTIES_SYSV
 189 #endif
 190
 191 #define BUS_MANAGER_INTERFACE_END                                       \
 192         " </interface>\n"
 193
 194 #define BUS_MANAGER_INTERFACE                                           \
 195         BUS_MANAGER_INTERFACE_BEGIN                                     \
 196         BUS_MANAGER_INTERFACE_METHODS                                   \
 197         BUS_MANAGER_INTERFACE_SIGNALS                                   \
 198         BUS_MANAGER_INTERFACE_PROPERTIES_GENERAL                        \
 199         BUS_MANAGER_INTERFACE_PROPERTIES_SYSV                           \
 200         BUS_MANAGER_INTERFACE_END
 201
 202 #define INTROSPECTION_BEGIN                                             \
 203         DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE                       \
 204         "<node>\n"                                                      \
 205         BUS_MANAGER_INTERFACE                                           \
 206         BUS_PROPERTIES_INTERFACE                                        \
 207         BUS_PEER_INTERFACE                                              \
 208         BUS_INTROSPECTABLE_INTERFACE
 209
 210 #define INTROSPECTION_END                                               \
 211         "</node>\n"
 212
 213 #define INTERFACES_LIST                              \
 214         BUS_GENERIC_INTERFACES_LIST                  \
 215         "org.freedesktop.systemd1.Manager\0"
 216
 217 const char bus_manager_interface[] _introspect_("Manager") = BUS_MANAGER_INTERFACE;
 218
 219 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_running_as, manager_running_as, ManagerRunningAs);
 220 static DEFINE_BUS_PROPERTY_APPEND_ENUM(bus_manager_append_exec_output, exec_output, ExecOutput);
 221
 222 static int bus_manager_append_tainted(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 223         const char *t;
 224         char buf[LINE_MAX] = "", *e = buf, *p = NULL;
 225
 226         assert(m);
 227         assert(i);
 228         assert(property);
 229
 230         if (m->taint_usr)
 231                 e = stpcpy(e, "usr-separate-fs ");
 232
 233         if (readlink_malloc("/etc/mtab", &p) < 0)
 234                 e = stpcpy(e, "etc-mtab-not-symlink ");
 235         else
 236                 free(p);
 237
 238         if (access("/proc/cgroups", F_OK) < 0)
 239                 e = stpcpy(e, "cgroups-missing ");
 240
 241         t = strstrip(buf);
 242
 243         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 244                 return -ENOMEM;
 245
 246         return 0;
 247 }
 248
 249 static int bus_manager_append_log_target(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 250         const char *t;
 251
 252         assert(m);
 253         assert(i);
 254         assert(property);
 255
 256         t = log_target_to_string(log_get_target());
 257
 258         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 259                 return -ENOMEM;
 260
 261         return 0;
 262 }
 263
 264 static int bus_manager_set_log_target(Manager *m, DBusMessageIter *i, const char *property) {
 265         const char *t;
 266
 267         assert(m);
 268         assert(i);
 269         assert(property);
 270
 271         dbus_message_iter_get_basic(i, &t);
 272
 273         return log_set_target_from_string(t);
 274 }
 275
 276 static int bus_manager_append_log_level(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 277         const char *t;
 278
 279         assert(m);
 280         assert(i);
 281         assert(property);
 282
 283         t = log_level_to_string(log_get_max_level());
 284
 285         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_STRING, &t))
 286                 return -ENOMEM;
 287
 288         return 0;
 289 }
 290
 291 static int bus_manager_set_log_level(Manager *m, DBusMessageIter *i, const char *property) {
 292         const char *t;
 293
 294         assert(m);
 295         assert(i);
 296         assert(property);
 297
 298         dbus_message_iter_get_basic(i, &t);
 299
 300         return log_set_max_level_from_string(t);
 301 }
 302
 303 static int bus_manager_append_n_names(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 304         uint32_t u;
 305
 306         assert(m);
 307         assert(i);
 308         assert(property);
 309
 310         u = hashmap_size(m->units);
 311
 312         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 313                 return -ENOMEM;
 314
 315         return 0;
 316 }
 317
 318 static int bus_manager_append_n_jobs(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 319         uint32_t u;
 320
 321         assert(m);
 322         assert(i);
 323         assert(property);
 324
 325         u = hashmap_size(m->jobs);
 326
 327         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_UINT32, &u))
 328                 return -ENOMEM;
 329
 330         return 0;
 331 }
 332
 333 static int bus_manager_append_progress(Manager *m, DBusMessageIter *i, const char *property, void *data) {
 334         double d;
 335
 336         assert(m);
 337         assert(i);
 338         assert(property);
 339
 340         if (dual_timestamp_is_set(&m->finish_timestamp))
 341                 d = 1.0;
 342         else
 343                 d = 1.0 - ((double) hashmap_size(m->jobs) / (double) m->n_installed_jobs);
 344
 345         if (!dbus_message_iter_append_basic(i, DBUS_TYPE_DOUBLE, &d))
 346                 return -ENOMEM;
 347
 348         return 0;
 349 }
 350
 351 static const char *message_get_sender_with_fallback(DBusMessage *m) {
 352         const char *s;
 353
 354         assert(m);
 355
 356         if ((s = dbus_message_get_sender(m)))
 357                 return s;
 358
 359         /* When the message came in from a direct connection the
 360          * message will have no sender. We fix that here. */
 361
 362         return ":no-sender";
 363 }
 364
 365 static DBusHandlerResult bus_manager_message_handler(DBusConnection *connection, DBusMessage *message, void *data) {
 366         Manager *m = data;
 367
 368         const BusProperty properties[] = {
 369                 { "org.freedesktop.systemd1.Manager", "Version",       bus_property_append_string,    "s",  PACKAGE_STRING     },
 370                 { "org.freedesktop.systemd1.Manager", "Distribution",  bus_property_append_string,    "s",  DISTRIBUTION       },
 371                 { "org.freedesktop.systemd1.Manager", "Features",      bus_property_append_string,    "s",  SYSTEMD_FEATURES   },
 372                 { "org.freedesktop.systemd1.Manager", "RunningAs",     bus_manager_append_running_as, "s",  &m->running_as     },
 373                 { "org.freedesktop.systemd1.Manager", "Tainted",       bus_manager_append_tainted,    "s",  m                  },
 374                 { "org.freedesktop.systemd1.Manager", "InitRDTimestamp", bus_property_append_uint64,  "t",  &m->initrd_timestamp.realtime },
 375                 { "org.freedesktop.systemd1.Manager", "InitRDTimestampMonotonic", bus_property_append_uint64, "t", &m->initrd_timestamp.monotonic },
 376                 { "org.freedesktop.systemd1.Manager", "StartupTimestamp", bus_property_append_uint64, "t",  &m->startup_timestamp.realtime },
 377                 { "org.freedesktop.systemd1.Manager", "StartupTimestampMonotonic", bus_property_append_uint64, "t", &m->startup_timestamp.monotonic },
 378                 { "org.freedesktop.systemd1.Manager", "FinishTimestamp", bus_property_append_uint64,  "t",  &m->finish_timestamp.realtime },
 379                 { "org.freedesktop.systemd1.Manager", "FinishTimestampMonotonic", bus_property_append_uint64, "t",&m->finish_timestamp.monotonic },
 380                 { "org.freedesktop.systemd1.Manager", "LogLevel",      bus_manager_append_log_level,  "s",  NULL,               bus_manager_set_log_level},
 381                 { "org.freedesktop.systemd1.Manager", "LogTarget",     bus_manager_append_log_target, "s",  NULL,               bus_manager_set_log_target},
 382                 { "org.freedesktop.systemd1.Manager", "NNames",        bus_manager_append_n_names,    "u",  NULL               },
 383                 { "org.freedesktop.systemd1.Manager", "NJobs",         bus_manager_append_n_jobs,     "u",  NULL               },
 384                 { "org.freedesktop.systemd1.Manager", "NInstalledJobs",bus_property_append_uint32,    "u",  &m->n_installed_jobs },
 385                 { "org.freedesktop.systemd1.Manager", "NFailedJobs",   bus_property_append_uint32,    "u",  &m->n_failed_jobs  },
 386                 { "org.freedesktop.systemd1.Manager", "Progress",      bus_manager_append_progress,   "d",  NULL               },
 387                 { "org.freedesktop.systemd1.Manager", "Environment",   bus_property_append_strv,      "as", m->environment     },
 388                 { "org.freedesktop.systemd1.Manager", "ConfirmSpawn",  bus_property_append_bool,      "b",  &m->confirm_spawn  },
 389                 { "org.freedesktop.systemd1.Manager", "ShowStatus",    bus_property_append_bool,      "b",  &m->show_status    },
 390                 { "org.freedesktop.systemd1.Manager", "UnitPath",      bus_property_append_strv,      "as", m->lookup_paths.unit_path },
 391                 { "org.freedesktop.systemd1.Manager", "NotifySocket",  bus_property_append_string,    "s",  m->notify_socket   },
 392                 { "org.freedesktop.systemd1.Manager", "ControlGroupHierarchy", bus_property_append_string, "s", m->cgroup_hierarchy },
 393                 { "org.freedesktop.systemd1.Manager", "MountAuto",     bus_property_append_bool,      "b",  &m->mount_auto     },
 394                 { "org.freedesktop.systemd1.Manager", "SwapAuto",      bus_property_append_bool,      "b",  &m->swap_auto      },
 395                 { "org.freedesktop.systemd1.Manager", "DefaultControllers", bus_property_append_strv, "as", m->default_controllers },
 396                 { "org.freedesktop.systemd1.Manager", "DefaultStandardOutput", bus_manager_append_exec_output, "s", &m->default_std_output },
 397                 { "org.freedesktop.systemd1.Manager", "DefaultStandardError",  bus_manager_append_exec_output, "s", &m->default_std_error  },
 398 #ifdef HAVE_SYSV_COMPAT
 399                 { "org.freedesktop.systemd1.Manager", "SysVConsole",   bus_property_append_bool,      "b",  &m->sysv_console   },
 400                 { "org.freedesktop.systemd1.Manager", "SysVInitPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvinit_path },
 401                 { "org.freedesktop.systemd1.Manager", "SysVRcndPath",  bus_property_append_strv,      "as", m->lookup_paths.sysvrcnd_path },
 402 #endif
 403                 { NULL, NULL, NULL, NULL, NULL }
 404         };
 405
 406         int r;
 407         DBusError error;
 408         DBusMessage *reply = NULL;
 409         char * path = NULL;
 410         JobType job_type = _JOB_TYPE_INVALID;
 411         bool reload_if_possible = false;
 412
 413         assert(connection);
 414         assert(message);
 415         assert(m);
 416
 417         dbus_error_init(&error);
 418
 419         if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnit")) {
 420                 const char *name;
 421                 Unit *u;
 422
 423                 if (!dbus_message_get_args(
 424                                     message,
 425                                     &error,
 426                                     DBUS_TYPE_STRING, &name,
 427                                     DBUS_TYPE_INVALID))
 428                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 429
 430                 if (!(u = manager_get_unit(m, name))) {
 431                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 432                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 433                 }
 434
 435                 if (!(reply = dbus_message_new_method_return(message)))
 436                         goto oom;
 437
 438                 if (!(path = unit_dbus_path(u)))
 439                         goto oom;
 440
 441                 if (!dbus_message_append_args(
 442                                     reply,
 443                                     DBUS_TYPE_OBJECT_PATH, &path,
 444                                     DBUS_TYPE_INVALID))
 445                         goto oom;
 446         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetUnitByPID")) {
 447                 Unit *u;
 448                 uint32_t pid;
 449
 450                 if (!dbus_message_get_args(
 451                                     message,
 452                                     &error,
 453                                     DBUS_TYPE_UINT32, &pid,
 454                                     DBUS_TYPE_INVALID))
 455                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 456
 457                 if (!(u = cgroup_unit_by_pid(m, (pid_t) pid))) {
 458                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "No unit for PID %lu is loaded.", (unsigned long) pid);
 459                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 460                 }
 461
 462                 if (!(reply = dbus_message_new_method_return(message)))
 463                         goto oom;
 464
 465                 if (!(path = unit_dbus_path(u)))
 466                         goto oom;
 467
 468                 if (!dbus_message_append_args(
 469                                     reply,
 470                                     DBUS_TYPE_OBJECT_PATH, &path,
 471                                     DBUS_TYPE_INVALID))
 472                         goto oom;
 473         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "LoadUnit")) {
 474                 const char *name;
 475                 Unit *u;
 476
 477                 if (!dbus_message_get_args(
 478                                     message,
 479                                     &error,
 480                                     DBUS_TYPE_STRING, &name,
 481                                     DBUS_TYPE_INVALID))
 482                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 483
 484                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
 485                         return bus_send_error_reply(m, connection, message, &error, r);
 486
 487                 if (!(reply = dbus_message_new_method_return(message)))
 488                         goto oom;
 489
 490                 if (!(path = unit_dbus_path(u)))
 491                         goto oom;
 492
 493                 if (!dbus_message_append_args(
 494                                     reply,
 495                                     DBUS_TYPE_OBJECT_PATH, &path,
 496                                     DBUS_TYPE_INVALID))
 497                         goto oom;
 498
 499         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnit"))
 500                 job_type = JOB_START;
 501         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
 502                 job_type = JOB_START;
 503         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StopUnit"))
 504                 job_type = JOB_STOP;
 505         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadUnit"))
 506                 job_type = JOB_RELOAD;
 507         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "RestartUnit"))
 508                 job_type = JOB_RESTART;
 509         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "TryRestartUnit"))
 510                 job_type = JOB_TRY_RESTART;
 511         else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrRestartUnit")) {
 512                 reload_if_possible = true;
 513                 job_type = JOB_RESTART;
 514         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ReloadOrTryRestartUnit")) {
 515                 reload_if_possible = true;
 516                 job_type = JOB_TRY_RESTART;
 517         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KillUnit")) {
 518                 const char *name, *swho, *smode;
 519                 int32_t signo;
 520                 Unit *u;
 521                 KillMode mode;
 522                 KillWho who;
 523
 524                 if (!dbus_message_get_args(
 525                                     message,
 526                                     &error,
 527                                     DBUS_TYPE_STRING, &name,
 528                                     DBUS_TYPE_STRING, &swho,
 529                                     DBUS_TYPE_STRING, &smode,
 530                                     DBUS_TYPE_INT32, &signo,
 531                                     DBUS_TYPE_INVALID))
 532                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 533
 534                 if ((mode = kill_mode_from_string(smode)) < 0 ||
 535                     (who = kill_who_from_string(swho)) < 0 ||
 536                     signo <= 0 ||
 537                     signo >= _NSIG)
 538                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 539
 540                 if (!(u = manager_get_unit(m, name))) {
 541                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 542                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 543                 }
 544
 545                 if ((r = unit_kill(u, who, mode, signo, &error)) < 0)
 546                         return bus_send_error_reply(m, connection, message, &error, r);
 547
 548                 if (!(reply = dbus_message_new_method_return(message)))
 549                         goto oom;
 550
 551         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "GetJob")) {
 552                 uint32_t id;
 553                 Job *j;
 554
 555                 if (!dbus_message_get_args(
 556                                     message,
 557                                     &error,
 558                                     DBUS_TYPE_UINT32, &id,
 559                                     DBUS_TYPE_INVALID))
 560                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 561
 562                 if (!(j = manager_get_job(m, id))) {
 563                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "Job %u does not exist.", (unsigned) id);
 564                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 565                 }
 566
 567                 if (!(reply = dbus_message_new_method_return(message)))
 568                         goto oom;
 569
 570                 if (!(path = job_dbus_path(j)))
 571                         goto oom;
 572
 573                 if (!dbus_message_append_args(
 574                                     reply,
 575                                     DBUS_TYPE_OBJECT_PATH, &path,
 576                                     DBUS_TYPE_INVALID))
 577                         goto oom;
 578
 579         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ClearJobs")) {
 580
 581                 manager_clear_jobs(m);
 582
 583                 if (!(reply = dbus_message_new_method_return(message)))
 584                         goto oom;
 585
 586         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailed")) {
 587
 588                 manager_reset_failed(m);
 589
 590                 if (!(reply = dbus_message_new_method_return(message)))
 591                         goto oom;
 592
 593         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ResetFailedUnit")) {
 594                 const char *name;
 595                 Unit *u;
 596
 597                 if (!dbus_message_get_args(
 598                                     message,
 599                                     &error,
 600                                     DBUS_TYPE_STRING, &name,
 601                                     DBUS_TYPE_INVALID))
 602                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 603
 604                 if (!(u = manager_get_unit(m, name))) {
 605                         dbus_set_error(&error, BUS_ERROR_NO_SUCH_UNIT, "Unit %s is not loaded.", name);
 606                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 607                 }
 608
 609                 unit_reset_failed(u);
 610
 611                 if (!(reply = dbus_message_new_method_return(message)))
 612                         goto oom;
 613
 614         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListUnits")) {
 615                 DBusMessageIter iter, sub;
 616                 Iterator i;
 617                 Unit *u;
 618                 const char *k;
 619
 620                 if (!(reply = dbus_message_new_method_return(message)))
 621                         goto oom;
 622
 623                 dbus_message_iter_init_append(reply, &iter);
 624
 625                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(ssssssouso)", &sub))
 626                         goto oom;
 627
 628                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 629                         char *u_path, *j_path;
 630                         const char *description, *load_state, *active_state, *sub_state, *sjob_type, *following;
 631                         DBusMessageIter sub2;
 632                         uint32_t job_id;
 633                         Unit *f;
 634
 635                         if (k != u->meta.id)
 636                                 continue;
 637
 638                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 639                                 goto oom;
 640
 641                         description = unit_description(u);
 642                         load_state = unit_load_state_to_string(u->meta.load_state);
 643                         active_state = unit_active_state_to_string(unit_active_state(u));
 644                         sub_state = unit_sub_state_to_string(u);
 645
 646                         f = unit_following(u);
 647                         following = f ? f->meta.id : "";
 648
 649                         if (!(u_path = unit_dbus_path(u)))
 650                                 goto oom;
 651
 652                         if (u->meta.job) {
 653                                 job_id = (uint32_t) u->meta.job->id;
 654
 655                                 if (!(j_path = job_dbus_path(u->meta.job))) {
 656                                         free(u_path);
 657                                         goto oom;
 658                                 }
 659
 660                                 sjob_type = job_type_to_string(u->meta.job->type);
 661                         } else {
 662                                 job_id = 0;
 663                                 j_path = u_path;
 664                                 sjob_type = "";
 665                         }
 666
 667                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &u->meta.id) ||
 668                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &description) ||
 669                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &load_state) ||
 670                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &active_state) ||
 671                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sub_state) ||
 672                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &following) ||
 673                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path) ||
 674                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &job_id) ||
 675                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &sjob_type) ||
 676                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path)) {
 677                                 free(u_path);
 678                                 if (u->meta.job)
 679                                         free(j_path);
 680                                 goto oom;
 681                         }
 682
 683                         free(u_path);
 684                         if (u->meta.job)
 685                                 free(j_path);
 686
 687                         if (!dbus_message_iter_close_container(&sub, &sub2))
 688                                 goto oom;
 689                 }
 690
 691                 if (!dbus_message_iter_close_container(&iter, &sub))
 692                         goto oom;
 693
 694         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "ListJobs")) {
 695                 DBusMessageIter iter, sub;
 696                 Iterator i;
 697                 Job *j;
 698
 699                 if (!(reply = dbus_message_new_method_return(message)))
 700                         goto oom;
 701
 702                 dbus_message_iter_init_append(reply, &iter);
 703
 704                 if (!dbus_message_iter_open_container(&iter, DBUS_TYPE_ARRAY, "(usssoo)", &sub))
 705                         goto oom;
 706
 707                 HASHMAP_FOREACH(j, m->jobs, i) {
 708                         char *u_path, *j_path;
 709                         const char *state, *type;
 710                         uint32_t id;
 711                         DBusMessageIter sub2;
 712
 713                         if (!dbus_message_iter_open_container(&sub, DBUS_TYPE_STRUCT, NULL, &sub2))
 714                                 goto oom;
 715
 716                         id = (uint32_t) j->id;
 717                         state = job_state_to_string(j->state);
 718                         type = job_type_to_string(j->type);
 719
 720                         if (!(j_path = job_dbus_path(j)))
 721                                 goto oom;
 722
 723                         if (!(u_path = unit_dbus_path(j->unit))) {
 724                                 free(j_path);
 725                                 goto oom;
 726                         }
 727
 728                         if (!dbus_message_iter_append_basic(&sub2, DBUS_TYPE_UINT32, &id) ||
 729                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &j->unit->meta.id) ||
 730                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &type) ||
 731                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_STRING, &state) ||
 732                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &j_path) ||
 733                             !dbus_message_iter_append_basic(&sub2, DBUS_TYPE_OBJECT_PATH, &u_path)) {
 734                                 free(j_path);
 735                                 free(u_path);
 736                                 goto oom;
 737                         }
 738
 739                         free(j_path);
 740                         free(u_path);
 741
 742                         if (!dbus_message_iter_close_container(&sub, &sub2))
 743                                 goto oom;
 744                 }
 745
 746                 if (!dbus_message_iter_close_container(&iter, &sub))
 747                         goto oom;
 748
 749         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Subscribe")) {
 750                 char *client;
 751                 Set *s;
 752
 753                 if (!(s = BUS_CONNECTION_SUBSCRIBED(m, connection))) {
 754                         if (!(s = set_new(string_hash_func, string_compare_func)))
 755                                 goto oom;
 756
 757                         if (!(dbus_connection_set_data(connection, m->subscribed_data_slot, s, NULL))) {
 758                                 set_free(s);
 759                                 goto oom;
 760                         }
 761                 }
 762
 763                 if (!(client = strdup(message_get_sender_with_fallback(message))))
 764                         goto oom;
 765
 766                 if ((r = set_put(s, client)) < 0) {
 767                         free(client);
 768                         return bus_send_error_reply(m, connection, message, NULL, r);
 769                 }
 770
 771                 if (!(reply = dbus_message_new_method_return(message)))
 772                         goto oom;
 773
 774         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Unsubscribe")) {
 775                 char *client;
 776
 777                 if (!(client = set_remove(BUS_CONNECTION_SUBSCRIBED(m, connection), (char*) message_get_sender_with_fallback(message)))) {
 778                         dbus_set_error(&error, BUS_ERROR_NOT_SUBSCRIBED, "Client is not subscribed.");
 779                         return bus_send_error_reply(m, connection, message, &error, -ENOENT);
 780                 }
 781
 782                 free(client);
 783
 784                 if (!(reply = dbus_message_new_method_return(message)))
 785                         goto oom;
 786
 787         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Dump")) {
 788                 FILE *f;
 789                 char *dump = NULL;
 790                 size_t size;
 791
 792                 if (!(reply = dbus_message_new_method_return(message)))
 793                         goto oom;
 794
 795                 if (!(f = open_memstream(&dump, &size)))
 796                         goto oom;
 797
 798                 manager_dump_units(m, f, NULL);
 799                 manager_dump_jobs(m, f, NULL);
 800
 801                 if (ferror(f)) {
 802                         fclose(f);
 803                         free(dump);
 804                         goto oom;
 805                 }
 806
 807                 fclose(f);
 808
 809                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &dump, DBUS_TYPE_INVALID)) {
 810                         free(dump);
 811                         goto oom;
 812                 }
 813
 814                 free(dump);
 815         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "CreateSnapshot")) {
 816                 const char *name;
 817                 dbus_bool_t cleanup;
 818                 Snapshot *s;
 819
 820                 if (!dbus_message_get_args(
 821                                     message,
 822                                     &error,
 823                                     DBUS_TYPE_STRING, &name,
 824                                     DBUS_TYPE_BOOLEAN, &cleanup,
 825                                     DBUS_TYPE_INVALID))
 826                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
 827
 828                 if (name && name[0] == 0)
 829                         name = NULL;
 830
 831                 if ((r = snapshot_create(m, name, cleanup, &error, &s)) < 0)
 832                         return bus_send_error_reply(m, connection, message, &error, r);
 833
 834                 if (!(reply = dbus_message_new_method_return(message)))
 835                         goto oom;
 836
 837                 if (!(path = unit_dbus_path(UNIT(s))))
 838                         goto oom;
 839
 840                 if (!dbus_message_append_args(
 841                                     reply,
 842                                     DBUS_TYPE_OBJECT_PATH, &path,
 843                                     DBUS_TYPE_INVALID))
 844                         goto oom;
 845
 846         } else if (dbus_message_is_method_call(message, "org.freedesktop.DBus.Introspectable", "Introspect")) {
 847                 char *introspection = NULL;
 848                 FILE *f;
 849                 Iterator i;
 850                 Unit *u;
 851                 Job *j;
 852                 const char *k;
 853                 size_t size;
 854
 855                 if (!(reply = dbus_message_new_method_return(message)))
 856                         goto oom;
 857
 858                 /* We roll our own introspection code here, instead of
 859                  * relying on bus_default_message_handler() because we
 860                  * need to generate our introspection string
 861                  * dynamically. */
 862
 863                 if (!(f = open_memstream(&introspection, &size)))
 864                         goto oom;
 865
 866                 fputs(INTROSPECTION_BEGIN, f);
 867
 868                 HASHMAP_FOREACH_KEY(u, k, m->units, i) {
 869                         char *p;
 870
 871                         if (k != u->meta.id)
 872                                 continue;
 873
 874                         if (!(p = bus_path_escape(k))) {
 875                                 fclose(f);
 876                                 free(introspection);
 877                                 goto oom;
 878                         }
 879
 880                         fprintf(f, "<node name=\"unit/%s\"/>", p);
 881                         free(p);
 882                 }
 883
 884                 HASHMAP_FOREACH(j, m->jobs, i)
 885                         fprintf(f, "<node name=\"job/%lu\"/>", (unsigned long) j->id);
 886
 887                 fputs(INTROSPECTION_END, f);
 888
 889                 if (ferror(f)) {
 890                         fclose(f);
 891                         free(introspection);
 892                         goto oom;
 893                 }
 894
 895                 fclose(f);
 896
 897                 if (!introspection)
 898                         goto oom;
 899
 900                 if (!dbus_message_append_args(reply, DBUS_TYPE_STRING, &introspection, DBUS_TYPE_INVALID)) {
 901                         free(introspection);
 902                         goto oom;
 903                 }
 904
 905                 free(introspection);
 906
 907         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reload")) {
 908
 909                 assert(!m->queued_message);
 910
 911                 /* Instead of sending the reply back right away, we
 912                  * just remember that we need to and then send it
 913                  * after the reload is finished. That way the caller
 914                  * knows when the reload finished. */
 915
 916                 if (!(m->queued_message = dbus_message_new_method_return(message)))
 917                         goto oom;
 918
 919                 m->queued_message_connection = connection;
 920                 m->exit_code = MANAGER_RELOAD;
 921
 922         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reexecute")) {
 923
 924                 if (!(reply = dbus_message_new_method_return(message)))
 925                         goto oom;
 926
 927                 m->exit_code = MANAGER_REEXECUTE;
 928
 929         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Exit")) {
 930
 931                 if (m->running_as == MANAGER_SYSTEM) {
 932                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Exit is only supported for user service managers.");
 933                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 934                 }
 935
 936                 if (!(reply = dbus_message_new_method_return(message)))
 937                         goto oom;
 938
 939                 m->exit_code = MANAGER_EXIT;
 940
 941         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Reboot")) {
 942
 943                 if (m->running_as != MANAGER_SYSTEM) {
 944                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Reboot is only supported for system managers.");
 945                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 946                 }
 947
 948                 if (!(reply = dbus_message_new_method_return(message)))
 949                         goto oom;
 950
 951                 m->exit_code = MANAGER_REBOOT;
 952
 953         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "PowerOff")) {
 954
 955                 if (m->running_as != MANAGER_SYSTEM) {
 956                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Powering off is only supported for system managers.");
 957                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 958                 }
 959
 960                 if (!(reply = dbus_message_new_method_return(message)))
 961                         goto oom;
 962
 963                 m->exit_code = MANAGER_POWEROFF;
 964
 965         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "Halt")) {
 966
 967                 if (m->running_as != MANAGER_SYSTEM) {
 968                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "Halting is only supported for system managers.");
 969                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 970                 }
 971
 972                 if (!(reply = dbus_message_new_method_return(message)))
 973                         goto oom;
 974
 975                 m->exit_code = MANAGER_HALT;
 976
 977         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "KExec")) {
 978
 979                 if (m->running_as != MANAGER_SYSTEM) {
 980                         dbus_set_error(&error, BUS_ERROR_NOT_SUPPORTED, "kexec is only supported for system managers.");
 981                         return bus_send_error_reply(m, connection, message, &error, -ENOTSUP);
 982                 }
 983
 984                 if (!(reply = dbus_message_new_method_return(message)))
 985                         goto oom;
 986
 987                 m->exit_code = MANAGER_KEXEC;
 988
 989         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "SetEnvironment")) {
 990                 char **l = NULL, **e = NULL;
 991
 992                 if ((r = bus_parse_strv(message, &l)) < 0) {
 993                         if (r == -ENOMEM)
 994                                 goto oom;
 995
 996                         return bus_send_error_reply(m, connection, message, NULL, r);
 997                 }
 998
 999                 e = strv_env_merge(2, m->environment, l);
1000                 strv_free(l);
1001
1002                 if (!e)
1003                         goto oom;
1004
1005                 if (!(reply = dbus_message_new_method_return(message))) {
1006                         strv_free(e);
1007                         goto oom;
1008                 }
1009
1010                 strv_free(m->environment);
1011                 m->environment = e;
1012
1013         } else if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "UnsetEnvironment")) {
1014                 char **l = NULL, **e = NULL;
1015
1016                 if ((r = bus_parse_strv(message, &l)) < 0) {
1017                         if (r == -ENOMEM)
1018                                 goto oom;
1019
1020                         return bus_send_error_reply(m, connection, message, NULL, r);
1021                 }
1022
1023                 e = strv_env_delete(m->environment, 1, l);
1024                 strv_free(l);
1025
1026                 if (!e)
1027                         goto oom;
1028
1029                 if (!(reply = dbus_message_new_method_return(message))) {
1030                         strv_free(e);
1031                         goto oom;
1032                 }
1033
1034                 strv_free(m->environment);
1035                 m->environment = e;
1036
1037         } else
1038                 return bus_default_message_handler(m, connection, message, NULL, INTERFACES_LIST, properties);
1039
1040         if (job_type != _JOB_TYPE_INVALID) {
1041                 const char *name, *smode, *old_name = NULL;
1042                 JobMode mode;
1043                 Job *j;
1044                 Unit *u;
1045                 bool b;
1046
1047                 if (dbus_message_is_method_call(message, "org.freedesktop.systemd1.Manager", "StartUnitReplace"))
1048                         b = dbus_message_get_args(
1049                                         message,
1050                                         &error,
1051                                         DBUS_TYPE_STRING, &old_name,
1052                                         DBUS_TYPE_STRING, &name,
1053                                         DBUS_TYPE_STRING, &smode,
1054                                         DBUS_TYPE_INVALID);
1055                 else
1056                         b = dbus_message_get_args(
1057                                         message,
1058                                         &error,
1059                                         DBUS_TYPE_STRING, &name,
1060                                         DBUS_TYPE_STRING, &smode,
1061                                         DBUS_TYPE_INVALID);
1062
1063                 if (!b)
1064                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1065
1066                 if (old_name)
1067                         if (!(u = manager_get_unit(m, old_name)) ||
1068                             !u->meta.job ||
1069                             u->meta.job->type != JOB_START) {
1070                                 dbus_set_error(&error, BUS_ERROR_NO_SUCH_JOB, "No job queued for unit %s", old_name);
1071                                 return bus_send_error_reply(m, connection, message, &error, -ENOENT);
1072                         }
1073
1074
1075                 if ((mode = job_mode_from_string(smode)) == _JOB_MODE_INVALID) {
1076                         dbus_set_error(&error, BUS_ERROR_INVALID_JOB_MODE, "Job mode %s is invalid.", smode);
1077                         return bus_send_error_reply(m, connection, message, &error, -EINVAL);
1078                 }
1079
1080                 if ((r = manager_load_unit(m, name, NULL, &error, &u)) < 0)
1081                         return bus_send_error_reply(m, connection, message, &error, r);
1082
1083                 if (reload_if_possible && unit_can_reload(u)) {
1084                         if (job_type == JOB_RESTART)
1085                                 job_type = JOB_RELOAD_OR_START;
1086                         else if (job_type == JOB_TRY_RESTART)
1087                                 job_type = JOB_RELOAD;
1088                 }
1089
1090                 if ((job_type == JOB_START && u->meta.refuse_manual_start) ||
1091                     (job_type == JOB_STOP && u->meta.refuse_manual_stop) ||
1092                     ((job_type == JOB_RESTART || job_type == JOB_TRY_RESTART) &&
1093                      (u->meta.refuse_manual_start || u->meta.refuse_manual_stop))) {
1094                         dbus_set_error(&error, BUS_ERROR_ONLY_BY_DEPENDENCY, "Operation refused, may be requested by dependency only.");
1095                         return bus_send_error_reply(m, connection, message, &error, -EPERM);
1096                 }
1097
1098                 if ((r = manager_add_job(m, job_type, u, mode, true, &error, &j)) < 0)
1099                         return bus_send_error_reply(m, connection, message, &error, r);
1100
1101                 if (!(j->bus_client = strdup(message_get_sender_with_fallback(message))))
1102                         goto oom;
1103
1104                 j->bus = connection;
1105
1106                 if (!(reply = dbus_message_new_method_return(message)))
1107                         goto oom;
1108
1109                 if (!(path = job_dbus_path(j)))
1110                         goto oom;
1111
1112                 if (!dbus_message_append_args(
1113                                     reply,
1114                                     DBUS_TYPE_OBJECT_PATH, &path,
1115                                     DBUS_TYPE_INVALID))
1116                         goto oom;
1117         }
1118
1119         if (reply) {
1120                 if (!dbus_connection_send(connection, reply, NULL))
1121                         goto oom;
1122
1123                 dbus_message_unref(reply);
1124         }
1125
1126         free(path);
1127
1128         return DBUS_HANDLER_RESULT_HANDLED;
1129
1130 oom:
1131         free(path);
1132
1133         if (reply)
1134                 dbus_message_unref(reply);
1135
1136         dbus_error_free(&error);
1137
1138         return DBUS_HANDLER_RESULT_NEED_MEMORY;
1139 }
1140
1141 const DBusObjectPathVTable bus_manager_vtable = {
1142         .message_function = bus_manager_message_handler
1143 };