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  • Committer: Teddy Hogeborn
  • Date: 2014-08-10 14:13:02 UTC
  • Revision ID: teddy@recompile.se-20140810141302-8q1xaaxlh8ho5joz
Emit D-Bus "org.freedesktop.DBus.Properties.PropertiesChanged" signal.

This deprecates the "se.recompile.Mandos.Client.PropertyChanged"
signal.  The new signal also adds support for noticing changes to the
"se.recompile.Mandos.Client.Secret" write-only property.

* mandos (dbus_annotations): Fix usage example in doc string.
  (DBusObjectWithProperties.PropertiesChanged): New; from D-Bus
                                                standard.
  (ClientDBus._interface): Set early instead of later.
  (ClientDBus.notifychangeproperty): Take new "invalidate_only"
                                     parameter, and pass in _interface
                                     as a default keyword argument.
  (ClientDBus.notifychangeproperty/setter): Also emit
                                            PropertiesChanged signal;
                                            emit new value or
                                            invalidation depending on
                                            "invalidate_only".
  (ClientDBus.secret): Apply notifychangeproperty with
                       "invalidate_only=True".
  (ClientDBus._foo): Removed defunct interface annotation.
  (ClientDBus.PropertyChanged): Add annotation; this method is now
                                deprecated.
  (main/MandosDBusService.GetAllClientsWithProperties): Use dictionary
                                                        comprehension.
* DBUS-API (Mandos Client Interface/Signals/PropertyChanged): Removed.
* mandos-monitor: Use standard "PropertiesChanged" signal instead of
                  old signal "PropertyChanged".
  (MandosClientPropertyCache.__init__): Connect to signal
                                        PropertiesChanged instead of
                                        PropertyChanged.
  (MandosClientPropertyCache._property_changed): Removed.
  (MandosClientPropertyCache.property_changed): Renamed to
                                                "properties_changed"
                                                and adapted to new
                                                call signature.
  (MandosClientWidget.properties_changed): - '' -

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Lines of Context:
mandos.xml
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<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY COMMANDNAME "mandos">
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<!ENTITY TIMESTAMP "2009-09-17">
 
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<!ENTITY TIMESTAMP "2014-06-15">
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<!ENTITY % common SYSTEM "common.ent">
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%common;
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]>
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        <firstname>Björn</firstname>
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        <surname>Påhlsson</surname>
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        <address>
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          <email>belorn@fukt.bsnet.se</email>
 
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          <email>belorn@recompile.se</email>
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        </address>
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      </author>
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      <author>
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        <firstname>Teddy</firstname>
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        <surname>Hogeborn</surname>
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        <address>
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          <email>teddy@fukt.bsnet.se</email>
 
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          <email>teddy@recompile.se</email>
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        </address>
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      </author>
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    </authorgroup>
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    <copyright>
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      <year>2008</year>
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      <year>2009</year>
 
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      <year>2010</year>
 
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      <year>2011</year>
 
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      <year>2012</year>
 
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      <year>2013</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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      <sbr/>
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      <arg><option>--debug</option></arg>
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      <sbr/>
 
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      <arg><option>--debuglevel
 
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      <replaceable>LEVEL</replaceable></option></arg>
 
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      <sbr/>
 
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      <arg><option>--no-dbus</option></arg>
 
97
      <sbr/>
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      <arg><option>--no-ipv6</option></arg>
 
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      <sbr/>
 
100
      <arg><option>--no-restore</option></arg>
 
101
      <sbr/>
 
102
      <arg><option>--statedir
 
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      <replaceable>DIRECTORY</replaceable></option></arg>
 
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      <sbr/>
 
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      <arg><option>--socket
 
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      <replaceable>FD</replaceable></option></arg>
 
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      <sbr/>
 
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      <arg><option>--foreground</option></arg>
 
109
      <sbr/>
 
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      <arg><option>--no-zeroconf</option></arg>
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    </cmdsynopsis>
91
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
110
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    <para>
111
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      <command>&COMMANDNAME;</command> is a server daemon which
112
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      handles incoming request for passwords for a pre-defined list of
113
 
      client host computers.  The Mandos server uses Zeroconf to
114
 
      announce itself on the local network, and uses TLS to
115
 
      communicate securely with and to authenticate the clients.  The
116
 
      Mandos server uses IPv6 to allow Mandos clients to use IPv6
117
 
      link-local addresses, since the clients will probably not have
118
 
      any other addresses configured (see <xref linkend="overview"/>).
119
 
      Any authenticated client is then given the stored pre-encrypted
120
 
      password for that specific client.
 
134
      client host computers. For an introduction, see
 
135
      <citerefentry><refentrytitle>intro</refentrytitle>
 
136
      <manvolnum>8mandos</manvolnum></citerefentry>. The Mandos server
 
137
      uses Zeroconf to announce itself on the local network, and uses
 
138
      TLS to communicate securely with and to authenticate the
 
139
      clients.  The Mandos server uses IPv6 to allow Mandos clients to
 
140
      use IPv6 link-local addresses, since the clients will probably
 
141
      not have any other addresses configured (see <xref
 
142
      linkend="overview"/>).  Any authenticated client is then given
 
143
      the stored pre-encrypted password for that specific client.
121
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    </para>
122
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  </refsect1>
123
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192
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      </varlistentry>
193
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      <varlistentry>
 
218
        <term><option>--debuglevel
 
219
        <replaceable>LEVEL</replaceable></option></term>
 
220
        <listitem>
 
221
          <para>
 
222
            Set the debugging log level.
 
223
            <replaceable>LEVEL</replaceable> is a string, one of
 
224
            <quote><literal>CRITICAL</literal></quote>,
 
225
            <quote><literal>ERROR</literal></quote>,
 
226
            <quote><literal>WARNING</literal></quote>,
 
227
            <quote><literal>INFO</literal></quote>, or
 
228
            <quote><literal>DEBUG</literal></quote>, in order of
 
229
            increasing verbosity.  The default level is
 
230
            <quote><literal>WARNING</literal></quote>.
 
231
          </para>
 
232
        </listitem>
 
233
      </varlistentry>
 
234
      
 
235
      <varlistentry>
195
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        <term><option>--priority <replaceable>
196
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        PRIORITY</replaceable></option></term>
197
238
        <listitem>
198
 
          <xi:include href="mandos-options.xml" xpointer="priority"/>
 
239
          <xi:include href="mandos-options.xml"
 
240
                      xpointer="priority_compat"/>
199
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        </listitem>
200
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      </varlistentry>
201
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233
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      </varlistentry>
234
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235
277
      <varlistentry>
 
278
        <term><option>--no-dbus</option></term>
 
279
        <listitem>
 
280
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
 
281
          <para>
 
282
            See also <xref linkend="dbus_interface"/>.
 
283
          </para>
 
284
        </listitem>
 
285
      </varlistentry>
 
286
      
 
287
      <varlistentry>
236
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        <term><option>--no-ipv6</option></term>
237
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        <listitem>
238
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          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
239
291
        </listitem>
240
292
      </varlistentry>
 
293
      
 
294
      <varlistentry>
 
295
        <term><option>--no-restore</option></term>
 
296
        <listitem>
 
297
          <xi:include href="mandos-options.xml" xpointer="restore"/>
 
298
          <para>
 
299
            See also <xref linkend="persistent_state"/>.
 
300
          </para>
 
301
        </listitem>
 
302
      </varlistentry>
 
303
      
 
304
      <varlistentry>
 
305
        <term><option>--statedir
 
306
        <replaceable>DIRECTORY</replaceable></option></term>
 
307
        <listitem>
 
308
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
 
309
        </listitem>
 
310
      </varlistentry>
 
311
      
 
312
      <varlistentry>
 
313
        <term><option>--socket
 
314
        <replaceable>FD</replaceable></option></term>
 
315
        <listitem>
 
316
          <xi:include href="mandos-options.xml" xpointer="socket"/>
 
317
        </listitem>
 
318
      </varlistentry>
 
319
      
 
320
      <varlistentry>
 
321
        <term><option>--foreground</option></term>
 
322
        <listitem>
 
323
          <xi:include href="mandos-options.xml"
 
324
                      xpointer="foreground"/>
 
325
        </listitem>
 
326
      </varlistentry>
 
327
      
 
328
      <varlistentry>
 
329
        <term><option>--no-zeroconf</option></term>
 
330
        <listitem>
 
331
          <xi:include href="mandos-options.xml" xpointer="zeroconf"/>
 
332
        </listitem>
 
333
      </varlistentry>
 
334
      
241
335
    </variablelist>
242
336
  </refsect1>
243
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317
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      for some time, the client is assumed to be compromised and is no
318
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      longer eligible to receive the encrypted password.  (Manual
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      intervention is required to re-enable a client.)  The timeout,
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      checker program, and interval between checks can be configured
321
 
      both globally and per client; see <citerefentry>
 
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      extended timeout, checker program, and interval between checks
 
415
      can be configured both globally and per client; see
 
416
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
417
      <manvolnum>5</manvolnum></citerefentry>.
 
418
    </para>
 
419
  </refsect1>
 
420
  
 
421
  <refsect1 id="approval">
 
422
    <title>APPROVAL</title>
 
423
    <para>
 
424
      The server can be configured to require manual approval for a
 
425
      client before it is sent its secret.  The delay to wait for such
 
426
      approval and the default action (approve or deny) can be
 
427
      configured both globally and per client; see <citerefentry>
322
428
      <refentrytitle>mandos-clients.conf</refentrytitle>
323
 
      <manvolnum>5</manvolnum></citerefentry>.  A client successfully
324
 
      receiving its password will also be treated as a successful
325
 
      checker run.
326
 
    </para>
 
429
      <manvolnum>5</manvolnum></citerefentry>.  By default all clients
 
430
      will be approved immediately without delay.
 
431
    </para>
 
432
    <para>
 
433
      This can be used to deny a client its secret if not manually
 
434
      approved within a specified time.  It can also be used to make
 
435
      the server delay before giving a client its secret, allowing
 
436
      optional manual denying of this specific client.
 
437
    </para>
 
438
    
327
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  </refsect1>
328
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329
441
  <refsect1 id="logging">
330
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    <title>LOGGING</title>
331
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    <para>
332
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      The server will send log message with various severity levels to
333
 
      <filename>/dev/log</filename>.  With the
 
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      <filename class="devicefile">/dev/log</filename>.  With the
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      <option>--debug</option> option, it will log even more messages,
335
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      and also show them on the console.
336
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    </para>
337
449
  </refsect1>
338
450
  
 
451
  <refsect1 id="persistent_state">
 
452
    <title>PERSISTENT STATE</title>
 
453
    <para>
 
454
      Client settings, initially read from
 
455
      <filename>clients.conf</filename>, are persistent across
 
456
      restarts, and run-time changes will override settings in
 
457
      <filename>clients.conf</filename>.  However, if a setting is
 
458
      <emphasis>changed</emphasis> (or a client added, or removed) in
 
459
      <filename>clients.conf</filename>, this will take precedence.
 
460
    </para>
 
461
  </refsect1>
 
462
  
 
463
  <refsect1 id="dbus_interface">
 
464
    <title>D-BUS INTERFACE</title>
 
465
    <para>
 
466
      The server will by default provide a D-Bus system bus interface.
 
467
      This interface will only be accessible by the root user or a
 
468
      Mandos-specific user, if such a user exists.  For documentation
 
469
      of the D-Bus API, see the file <filename>DBUS-API</filename>.
 
470
    </para>
 
471
  </refsect1>
 
472
  
339
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  <refsect1 id="exit_status">
340
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    <title>EXIT STATUS</title>
341
475
    <para>
393
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        </listitem>
394
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      </varlistentry>
395
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      <varlistentry>
396
 
        <term><filename>/var/run/mandos.pid</filename></term>
397
 
        <listitem>
398
 
          <para>
399
 
            The file containing the process id of
400
 
            <command>&COMMANDNAME;</command>.
 
530
        <term><filename>/run/mandos.pid</filename></term>
 
531
        <listitem>
 
532
          <para>
 
533
            The file containing the process id of the
 
534
            <command>&COMMANDNAME;</command> process started last.
 
535
            <emphasis >Note:</emphasis> If the <filename
 
536
            class="directory">/run</filename> directory does not
 
537
            exist, <filename>/var/run/mandos.pid</filename> will be
 
538
            used instead.
 
539
          </para>
 
540
        </listitem>
 
541
      </varlistentry>
 
542
      <varlistentry>
 
543
        <term><filename class="devicefile">/dev/log</filename></term>
 
544
      </varlistentry>
 
545
      <varlistentry>
 
546
        <term><filename
 
547
        class="directory">/var/lib/mandos</filename></term>
 
548
        <listitem>
 
549
          <para>
 
550
            Directory where persistent state will be saved.  Change
 
551
            this with the <option>--statedir</option> option.  See
 
552
            also the <option>--no-restore</option> option.
401
553
          </para>
402
554
        </listitem>
403
555
      </varlistentry>
431
583
      backtrace.  This could be considered a feature.
432
584
    </para>
433
585
    <para>
434
 
      Currently, if a client is declared <quote>invalid</quote> due to
435
 
      having timed out, the server does not record this fact onto
436
 
      permanent storage.  This has some security implications, see
437
 
      <xref linkend="clients"/>.
438
 
    </para>
439
 
    <para>
440
 
      There is currently no way of querying the server of the current
441
 
      status of clients, other than analyzing its <systemitem
442
 
      class="service">syslog</systemitem> output.
443
 
    </para>
444
 
    <para>
445
586
      There is no fine-grained control over logging and debug output.
446
587
    </para>
447
588
    <para>
448
 
      Debug mode is conflated with running in the foreground.
449
 
    </para>
450
 
    <para>
451
 
      The console log messages do not show a time stamp.
452
 
    </para>
453
 
    <para>
454
589
      This server does not check the expire time of clients’ OpenPGP
455
590
      keys.
456
591
    </para>
469
604
    <informalexample>
470
605
      <para>
471
606
        Run the server in debug mode, read configuration files from
472
 
        the <filename>~/mandos</filename> directory, and use the
473
 
        Zeroconf service name <quote>Test</quote> to not collide with
474
 
        any other official Mandos server on this host:
 
607
        the <filename class="directory">~/mandos</filename> directory,
 
608
        and use the Zeroconf service name <quote>Test</quote> to not
 
609
        collide with any other official Mandos server on this host:
475
610
      </para>
476
611
      <para>
477
612
 
526
661
        compromised if they are gone for too long.
527
662
      </para>
528
663
      <para>
529
 
        If a client is compromised, its downtime should be duly noted
530
 
        by the server which would therefore declare the client
531
 
        invalid.  But if the server was ever restarted, it would
532
 
        re-read its client list from its configuration file and again
533
 
        regard all clients therein as valid, and hence eligible to
534
 
        receive their passwords.  Therefore, be careful when
535
 
        restarting servers if it is suspected that a client has, in
536
 
        fact, been compromised by parties who may now be running a
537
 
        fake Mandos client with the keys from the non-encrypted
538
 
        initial <acronym>RAM</acronym> image of the client host.  What
539
 
        should be done in that case (if restarting the server program
540
 
        really is necessary) is to stop the server program, edit the
541
 
        configuration file to omit any suspect clients, and restart
542
 
        the server program.
543
 
      </para>
544
 
      <para>
545
664
        For more details on client-side security, see
546
665
        <citerefentry><refentrytitle>mandos-client</refentrytitle>
547
666
        <manvolnum>8mandos</manvolnum></citerefentry>.
552
671
  <refsect1 id="see_also">
553
672
    <title>SEE ALSO</title>
554
673
    <para>
555
 
      <citerefentry>
556
 
        <refentrytitle>mandos-clients.conf</refentrytitle>
557
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
558
 
        <refentrytitle>mandos.conf</refentrytitle>
559
 
        <manvolnum>5</manvolnum></citerefentry>, <citerefentry>
560
 
        <refentrytitle>mandos-client</refentrytitle>
561
 
        <manvolnum>8mandos</manvolnum></citerefentry>, <citerefentry>
562
 
        <refentrytitle>sh</refentrytitle><manvolnum>1</manvolnum>
563
 
      </citerefentry>
 
674
      <citerefentry><refentrytitle>intro</refentrytitle>
 
675
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
676
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
677
      <manvolnum>5</manvolnum></citerefentry>,
 
678
      <citerefentry><refentrytitle>mandos.conf</refentrytitle>
 
679
      <manvolnum>5</manvolnum></citerefentry>,
 
680
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
681
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
682
      <citerefentry><refentrytitle>sh</refentrytitle>
 
683
      <manvolnum>1</manvolnum></citerefentry>
564
684
    </para>
565
685
    <variablelist>
566
686
      <varlistentry>