This file is indexed.

/usr/share/dbus-1/interfaces/org.freedesktop.UPower.xml is in upower 0.9.23-2ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

  1
  2
  3
  4
  5
  6
  7
  8
  9
 10
 11
 12
 13
 14
 15
 16
 17
 18
 19
 20
 21
 22
 23
 24
 25
 26
 27
 28
 29
 30
 31
 32
 33
 34
 35
 36
 37
 38
 39
 40
 41
 42
 43
 44
 45
 46
 47
 48
 49
 50
 51
 52
 53
 54
 55
 56
 57
 58
 59
 60
 61
 62
 63
 64
 65
 66
 67
 68
 69
 70
 71
 72
 73
 74
 75
 76
 77
 78
 79
 80
 81
 82
 83
 84
 85
 86
 87
 88
 89
 90
 91
 92
 93
 94
 95
 96
 97
 98
 99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
<!DOCTYPE node PUBLIC
"-//freedesktop//DTD D-BUS Object Introspection 1.0//EN"
"http://www.freedesktop.org/standards/dbus/1.0/introspect.dtd">
<node name="/" xmlns:doc="http://www.freedesktop.org/dbus/1.0/doc.dtd">

  <interface name="org.freedesktop.UPower">
    <doc:doc>
      <doc:description>
        <doc:para>
          The UPower service is available via the system message
          bus. To access the service, use
          the <doc:tt>org.freedesktop.UPower</doc:tt> interface on
          the <doc:tt>/org/freedesktop/UPower</doc:tt> object on
          the D-Bus system bus service with the well-known
          name <doc:tt>org.freedesktop.UPower</doc:tt>.
        </doc:para>
        <doc:para>
          <doc:example language="shell" title="simple example">
            <doc:code>
$ dbus-send --print-reply \
            --system \
            --dest=org.freedesktop.UPower \
            /org/freedesktop/UPower \
            org.freedesktop.UPower.EnumerateDevices

method return sender=:1.386 -> dest=:1.451 reply_serial=2
   array [
      object path "/org/freedesktop/UPower/devices/line_power_AC"
      object path "/org/freedesktop/UPower/devices/battery_BAT0"
   ]
            </doc:code>
          </doc:example>
        </doc:para>
      </doc:description>
    </doc:doc>

    <!-- ************************************************************ -->

    <method name="EnumerateDevices">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <arg name="devices" direction="out" type="ao">
        <doc:doc><doc:summary>An array of object paths for devices.</doc:summary></doc:doc>
      </arg>

      <doc:doc>
        <doc:description>
          <doc:para>
            Enumerate all power objects on the system.
          </doc:para>
        </doc:description>
      </doc:doc>
    </method>

    <!-- ************************************************************ -->

    <signal name="DeviceAdded">
      <arg name="device" type="o">
        <doc:doc><doc:summary>Object path of device that was added.</doc:summary></doc:doc>
      </arg>

      <doc:doc>
        <doc:description>
          <doc:para>
            Emitted when a device is added.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="DeviceRemoved">
      <arg name="device" type="o">
        <doc:doc><doc:summary>Object path of device that was removed.</doc:summary></doc:doc>
      </arg>

      <doc:doc>
        <doc:description>
          <doc:para>
            Emitted when a device is removed.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="DeviceChanged">
      <arg name="device" type="o">
        <doc:doc><doc:summary>Object path of device that was changed.</doc:summary></doc:doc>
      </arg>

      <doc:doc>
        <doc:description>
          <doc:para>
            Emitted when a device changed.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="Changed">
      <doc:doc>
        <doc:description>
          <doc:para>
            Emitted when one or more properties on the object changes.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="Sleeping">
      <doc:doc>
        <doc:description>
          <doc:para>
            This signal is sent when the session is about to be suspended or
            hibernated.
          </doc:para>
          <doc:para>
            This signal is DEPRECATED. Use NotifySleep() instead.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="NotifySleep">
      <doc:doc>
        <doc:description>
          <doc:para>
            This signal is sent when the session is about to be suspended or
            hibernated.
            Session and system programs have one second to do anything required
            before the sleep action is taken (such as sending out Avahi or
            Jabber messages).
          </doc:para>
        </doc:description>
      </doc:doc>
      <arg name="action" direction="out" type="s">
        <doc:doc>
          <doc:summary>
            The sleep action type, e.g. <doc:tt>suspend</doc:tt>,
            <doc:tt>hibernate</doc:tt> or <doc:tt>hybrid</doc:tt>.
          </doc:summary>
        </doc:doc>
      </arg>
    </signal>

    <!-- ************************************************************ -->

    <signal name="Resuming">
      <doc:doc>
        <doc:description>
          <doc:para>
            This signal is sent when the session has just returned from
            Suspend() or Hibernate().
          </doc:para>
          <doc:para>
            This signal is DEPRECATED. Use NotifyResume() instead.
          </doc:para>
        </doc:description>
      </doc:doc>
    </signal>

    <!-- ************************************************************ -->

    <signal name="NotifyResume">
      <doc:doc>
        <doc:description>
          <doc:para>
            This signal is sent when the session has just returned from
            Suspend() or Hibernate().
            Session and system programs can then do anything required (such as
            sending out Avahi or Jabber messages).
          </doc:para>
        </doc:description>
      </doc:doc>
      <arg name="action" direction="out" type="s">
        <doc:doc>
          <doc:summary>
            The sleep action type, e.g. <doc:tt>suspend</doc:tt>,
            <doc:tt>hibernate</doc:tt> or <doc:tt>hybrid</doc:tt>.
          </doc:summary>
        </doc:doc>
      </arg>
    </signal>

    <!-- ************************************************************ -->

    <method name="AboutToSleep">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <doc:doc>
        <doc:description>
          <doc:para>
            This method tells UPower that the Suspend() or Hibernate() method
            is about to be called.
            This allows UPower to emit the Suspending signal whilst
            session activities are happening that have to be done before the
            suspend process is started.
          </doc:para>
          <doc:para>
            This method would typically be called by the session power
            management daemon, before it locks the screen and waits for the
            screen to fade to black.
            The session power management component would then call Suspend() or
            Hibernate() when these syncronous tasks have completed.
          </doc:para>
          <doc:para>
            If this method is not called than nothing bad will happen and
            Suspend() or Hibernate() will block for the required second.
          </doc:para>
        </doc:description>
      </doc:doc>
      <arg name="action" direction="in" type="s">
        <doc:doc>
          <doc:summary>
            The sleep action type, e.g. <doc:tt>suspend</doc:tt> or
            <doc:tt>hibernate</doc:tt>.
          </doc:summary>
        </doc:doc>
      </arg>
    </method>

    <!-- ************************************************************ -->

    <method name="Suspend">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <doc:doc>
        <doc:description>
          <doc:para>
            Suspends the computer into a low power state.
            System state is not preserved if the power is lost.
          </doc:para>
          <doc:para>
            If AboutToSleep() has not been called then UPower will send
            the Sleeping() signal and block for one second.
          </doc:para>
          <doc:para>
            If AboutToSleep() has been called less than one second
            before this method is called then UPower will block for the
            remaining time to complete one second of delay.
          </doc:para>
        </doc:description>
      </doc:doc>
    </method>

    <!-- ************************************************************ -->

    <method name="SuspendAllowed">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <arg name="allowed" direction="out" type="b">
        <doc:doc><doc:summary>TRUE if allowed, otherwise FALSE</doc:summary></doc:doc>
      </arg>
      <doc:doc>
        <doc:description>
          <doc:para>
            Check if the caller has (or can get) the PolicyKit privilege to call
            <doc:ref type="method" to="Power.Suspend">Suspend</doc:ref>.
          </doc:para>
        </doc:description>
      </doc:doc>
    </method>

    <!-- ************************************************************ -->

    <method name="Hibernate">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <doc:doc>
        <doc:description>
          <doc:para>
            Hibernates the computer into a low power state.
            System state is preserved if the power is lost.
          </doc:para>
          <doc:para>
            If AboutToSleep() has not been called then UPower will send
            the Sleeping() signal and block for one second.
          </doc:para>
          <doc:para>
            If AboutToSleep() has been called less than one second
            before this method is called then UPower will block for the
            remaining time to complete one second of delay.
          </doc:para>
        </doc:description>
      </doc:doc>
    </method>

    <!-- ************************************************************ -->

    <method name="HibernateAllowed">
      <annotation name="org.freedesktop.DBus.GLib.Async" value=""/>
      <arg name="allowed" direction="out" type="b">
        <doc:doc><doc:summary>TRUE if allowed, otherwise FALSE</doc:summary></doc:doc>
      </arg>
      <doc:doc>
        <doc:description>
          <doc:para>
            Check if the caller has (or can get) the PolicyKit privilege to call
            <doc:ref type="method" to="Power.Hibernate">Hibernate</doc:ref>.
          </doc:para>
        </doc:description>
      </doc:doc>
    </method>

    <!-- ************************************************************ -->

    <property name="DaemonVersion" type="s" access="read">
      <doc:doc><doc:description><doc:para>
            Version of the running daemon, e.g. <doc:tt>002</doc:tt>.
      </doc:para></doc:description></doc:doc>
    </property>

    <property name="CanSuspend" type="b" access="read">
      <doc:doc><doc:description><doc:para>
            Whether the system is able to suspend.
      </doc:para></doc:description></doc:doc>
    </property>

    <property name="CanHibernate" type="b" access="read">
      <doc:doc><doc:description><doc:para>
            Whether the system is able to hibernate.
      </doc:para></doc:description></doc:doc>
    </property>

    <property name="OnBattery" type="b" access="read">
      <doc:doc><doc:description><doc:para>
            Indicates whether the system is running on battery power.
            This property is provided for convenience.
      </doc:para></doc:description></doc:doc>
    </property>

    <property name="OnLowBattery" type="b" access="read">
      <doc:doc><doc:description><doc:para>
            Indicates whether the system is running on battery power and if the battery is critically low.
            This property is provided for convenience.
      </doc:para></doc:description></doc:doc>
    </property>

    <property name="LidIsClosed" type="b" access="read">
      <doc:doc>
        <doc:description>
          <doc:para>
            Indicates if the laptop lid is closed where the display cannot be seen.
          </doc:para>
        </doc:description>
      </doc:doc>
    </property>

    <property name="LidIsPresent" type="b" access="read">
      <doc:doc>
        <doc:description>
          <doc:para>
            If the system has a lid device.
          </doc:para>
        </doc:description>
      </doc:doc>
    </property>

    <property name="LidForceSleep" type="b" access="read">
      <doc:doc>
        <doc:description>
          <doc:para>
            If the system really has to sleep when the lid is closed.
            Some laptops actually melt (!) if the lid is closed and the
            computer keeps running. We blacklist those, and do something
            sane for the other machines.
          </doc:para>
          <doc:para>
            This allows us to set the default session policy to not
            suspend on lid close if the laptop is docked, and be sure
            the machine is not going to melt.
          </doc:para>
        </doc:description>
      </doc:doc>
    </property>

    <property name="IsDocked" type="b" access="read">
      <doc:doc>
        <doc:description>
          <doc:para>
            If the system is currently docked.
            Note: the "is-docked" value is the result of a heuristic,
            which may involve testing the display output.
          </doc:para>
        </doc:description>
      </doc:doc>
    </property>

  </interface>

</node>