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  • Committer: Teddy Hogeborn
  • Date: 2019-07-30 17:03:57 UTC
  • mto: This revision was merged to the branch mainline in revision 384.
  • Revision ID: teddy@recompile.se-20190730170357-jte0piul5mq7j5pr
http://bugs.debian.org/933387
Server: Reap zombies created by multiprocessing.Process()

When creating checkers as multiprocessing.Process() objects, the
multiprocessing module also creates a parent process (for the
call_pipe() function) to call the actual checker process, but this
parent process is not reaped.  This is not a huge problem, since the
zombie is always reaped automatically the next time the multiprocess
starts a new process, but the zombies can be up to as many as there
have ever been simultaneous checker processes.  To fix this, the
process object must be join():ed when they report completion of the
child checker process.

* mandos (Client): Fix doc string to correctly state that
                   Client.checker is a multiprocess.Process() and not
                   a subprocess.Popen() object.
  (Client.checker_callback): After the returncode of the checker
                             process has been read, wait for the
                             self.checker Process object to finish by
                             calling join() on it.

Reported-by: Peter Palfrader <weasel@debian.org>

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mandos.conf.xml
 
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<?xml version="1.0" encoding="UTF-8"?>
 
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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 CONFNAME "mandos.conf">
 
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<!ENTITY CONFPATH "<filename>/etc/mandos/mandos.conf</filename>">
 
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<!ENTITY TIMESTAMP "2019-06-20">
 
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<!ENTITY % common SYSTEM "common.ent">
 
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%common;
 
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]>
 
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<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
 
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  <refentryinfo>
 
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    <title>Mandos Manual</title>
 
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    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
 
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    <productname>Mandos</productname>
 
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    <productnumber>&version;</productnumber>
 
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    <date>&TIMESTAMP;</date>
 
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    <authorgroup>
 
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      <author>
 
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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@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@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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      <year>2014</year>
 
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      <year>2015</year>
 
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      <year>2016</year>
 
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      <year>2017</year>
 
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      <year>2018</year>
 
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      <year>2019</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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    <xi:include href="legalnotice.xml"/>
 
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  </refentryinfo>
 
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  <refmeta>
 
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    <refentrytitle>&CONFNAME;</refentrytitle>
 
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    <manvolnum>5</manvolnum>
 
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  </refmeta>
 
57
  
 
58
  <refnamediv>
 
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    <refname><filename>&CONFNAME;</filename></refname>
 
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    <refpurpose>
 
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      Configuration file for the Mandos server
 
62
    </refpurpose>
 
63
  </refnamediv>
 
64
  
 
65
  <refsynopsisdiv>
 
66
    <synopsis>&CONFPATH;</synopsis>
 
67
  </refsynopsisdiv>
 
68
  
 
69
  <refsect1 id="description">
 
70
    <title>DESCRIPTION</title>
 
71
    <para>
 
72
      The file &CONFPATH; is a simple configuration file for
 
73
      <citerefentry><refentrytitle>mandos</refentrytitle>
 
74
      <manvolnum>8</manvolnum></citerefentry>, and is read by it at
 
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      startup.  The configuration file starts with <quote><literal
 
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      >[DEFAULT]</literal></quote> on a line by itself, followed by
 
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      any number of <quote><varname><replaceable>option</replaceable
 
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      ></varname>=<replaceable>value</replaceable></quote> entries,
 
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      with continuations in the style of RFC 822.  <quote><varname
 
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      ><replaceable>option</replaceable></varname>: <replaceable
 
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      >value</replaceable></quote> is also accepted.  Note that
 
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      leading whitespace is removed from values.  Lines beginning with
 
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      <quote>#</quote> or <quote>;</quote> are ignored and may be used
 
84
      to provide comments.
 
85
    </para>
 
86
    
 
87
  </refsect1>
 
88
  <refsect1>
 
89
    <title>OPTIONS</title>
 
90
    
 
91
    <variablelist>
 
92
      <varlistentry>
 
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        <term><option>interface<literal> = </literal><replaceable
 
94
        >NAME</replaceable></option></term>
 
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        <listitem>
 
96
          <xi:include href="mandos-options.xml" xpointer="interface"/>
 
97
        </listitem>
 
98
      </varlistentry>
 
99
      
 
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      <varlistentry>
 
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        <term><option>address<literal> = </literal><replaceable
 
102
          >ADDRESS</replaceable></option></term>
 
103
        <listitem>
 
104
          <xi:include href="mandos-options.xml" xpointer="address"/>
 
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        </listitem>
 
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      </varlistentry>
 
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      <varlistentry>
 
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        <term><option>port<literal> = </literal><replaceable
 
110
        >NUMBER</replaceable></option></term>
 
111
        <listitem>
 
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          <xi:include href="mandos-options.xml" xpointer="port"/>
 
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        </listitem>
 
114
      </varlistentry>
 
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      <varlistentry>
 
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        <term><option>debug<literal> = </literal>{ <literal
 
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          >1</literal> | <literal>yes</literal> | <literal
 
119
          >true</literal> | <literal>on</literal> | <literal
 
120
          >0</literal> | <literal>no</literal> | <literal
 
121
          >false</literal> | <literal>off</literal> }</option></term>
 
122
        <listitem>
 
123
          <xi:include href="mandos-options.xml" xpointer="debug"/>
 
124
        </listitem>
 
125
      </varlistentry>
 
126
      
 
127
      <varlistentry>
 
128
        <term><option>priority<literal> = </literal><replaceable
 
129
        >STRING</replaceable></option></term>
 
130
        <listitem>
 
131
          <xi:include href="mandos-options.xml" xpointer="priority"/>
 
132
        </listitem>
 
133
      </varlistentry>
 
134
      
 
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      <varlistentry>
 
136
        <term><option>servicename<literal> = </literal
 
137
        ><replaceable>NAME</replaceable></option></term>
 
138
        <listitem>
 
139
          <xi:include href="mandos-options.xml"
 
140
                      xpointer="servicename"/>
 
141
        </listitem>
 
142
      </varlistentry>
 
143
      
 
144
      <varlistentry>
 
145
        <term><option>use_dbus<literal> = </literal>{ <literal
 
146
          >1</literal> | <literal>yes</literal> | <literal
 
147
          >true</literal> | <literal>on</literal> | <literal
 
148
          >0</literal> | <literal>no</literal> | <literal
 
149
          >false</literal> | <literal>off</literal> }</option></term>
 
150
        <listitem>
 
151
          <xi:include href="mandos-options.xml" xpointer="dbus"/>
 
152
        </listitem>
 
153
      </varlistentry>
 
154
      
 
155
      <varlistentry>
 
156
        <term><option>use_ipv6<literal> = </literal>{ <literal
 
157
          >1</literal> | <literal>yes</literal> | <literal
 
158
          >true</literal> | <literal>on</literal> | <literal
 
159
          >0</literal> | <literal>no</literal> | <literal
 
160
          >false</literal> | <literal>off</literal> }</option></term>
 
161
        <listitem>
 
162
          <xi:include href="mandos-options.xml" xpointer="ipv6"/>
 
163
        </listitem>
 
164
      </varlistentry>
 
165
      
 
166
      <varlistentry>
 
167
        <term><option>restore<literal> = </literal>{ <literal
 
168
          >1</literal> | <literal>yes</literal> | <literal
 
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          >true</literal> | <literal>on</literal> | <literal
 
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          >0</literal> | <literal>no</literal> | <literal
 
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          >false</literal> | <literal>off</literal> }</option></term>
 
172
        <listitem>
 
173
          <xi:include href="mandos-options.xml" xpointer="restore"/>
 
174
        </listitem>
 
175
      </varlistentry>
 
176
      
 
177
      <varlistentry>
 
178
        <term><option>statedir<literal> = </literal><replaceable
 
179
        >DIRECTORY</replaceable></option></term>
 
180
        <listitem>
 
181
          <xi:include href="mandos-options.xml" xpointer="statedir"/>
 
182
        </listitem>
 
183
      </varlistentry>
 
184
      
 
185
      <varlistentry>
 
186
        <term><option>socket<literal> = </literal><replaceable
 
187
        >NUMBER</replaceable></option></term>
 
188
        <listitem>
 
189
          <xi:include href="mandos-options.xml" xpointer="socket"/>
 
190
        </listitem>
 
191
      </varlistentry>
 
192
      
 
193
    </variablelist>
 
194
  </refsect1>
 
195
  
 
196
  <refsect1 id="files">
 
197
    <title>FILES</title>
 
198
    <para>
 
199
      The file described here is &CONFPATH;
 
200
    </para>
 
201
  </refsect1>
 
202
  
 
203
  <refsect1 id="bugs">
 
204
    <title>BUGS</title>
 
205
    <para>
 
206
      The <literal>[DEFAULT]</literal> is necessary because the Python
 
207
      built-in module <systemitem class="library">ConfigParser</systemitem>
 
208
      requires it.
 
209
    </para>
 
210
    <xi:include href="bugs.xml"/>
 
211
  </refsect1>
 
212
  
 
213
  <refsect1 id="example">
 
214
    <title>EXAMPLE</title>
 
215
    <informalexample>
 
216
      <para>
 
217
        No options are actually required:
 
218
      </para>
 
219
      <programlisting>
 
220
[DEFAULT]
 
221
      </programlisting>
 
222
    </informalexample>
 
223
    <informalexample>
 
224
      <para>
 
225
        An example using all the options:
 
226
      </para>
 
227
      <programlisting>
 
228
[DEFAULT]
 
229
# A configuration example
 
230
interface = enp1s0
 
231
address = fe80::aede:48ff:fe71:f6f2
 
232
port = 1025
 
233
debug = True
 
234
priority = SECURE128:!CTYPE-X.509:+CTYPE-RAWPK:!RSA:!VERS-ALL:+VERS-TLS1.3:%PROFILE_ULTRA
 
235
servicename = Daena
 
236
use_dbus = False
 
237
use_ipv6 = True
 
238
restore = True
 
239
statedir = /var/lib/mandos
 
240
      </programlisting>
 
241
    </informalexample>
 
242
  </refsect1>
 
243
  
 
244
  <refsect1 id="see_also">
 
245
    <title>SEE ALSO</title>
 
246
    <para>
 
247
      <citerefentry><refentrytitle>intro</refentrytitle>
 
248
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
249
      <citerefentry><refentrytitle>gnutls_priority_init</refentrytitle
 
250
      ><manvolnum>3</manvolnum></citerefentry>,
 
251
      <citerefentry><refentrytitle>mandos</refentrytitle>
 
252
      <manvolnum>8</manvolnum></citerefentry>,
 
253
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
254
      <manvolnum>5</manvolnum></citerefentry>
 
255
    </para>
 
256
    
 
257
    <variablelist>
 
258
      <varlistentry>
 
259
        <term>
 
260
          RFC 4291: <citetitle>IP Version 6 Addressing
 
261
          Architecture</citetitle>
 
262
        </term>
 
263
        <listitem>
 
264
          <variablelist>
 
265
            <varlistentry>
 
266
              <term>Section 2.2: <citetitle>Text Representation of
 
267
              Addresses</citetitle></term>
 
268
              <listitem><para/></listitem>
 
269
            </varlistentry>
 
270
            <varlistentry>
 
271
              <term>Section 2.5.5.2: <citetitle>IPv4-Mapped IPv6
 
272
              Address</citetitle></term>
 
273
              <listitem><para/></listitem>
 
274
            </varlistentry>
 
275
            <varlistentry>
 
276
            <term>Section 2.5.6, <citetitle>Link-Local IPv6 Unicast
 
277
            Addresses</citetitle></term>
 
278
            <listitem>
 
279
              <para>
 
280
                The clients use IPv6 link-local addresses, which are
 
281
                immediately usable since a link-local addresses is
 
282
                automatically assigned to a network interface when it
 
283
                is brought up.
 
284
              </para>
 
285
            </listitem>
 
286
            </varlistentry>
 
287
          </variablelist>
 
288
        </listitem>
 
289
      </varlistentry>
 
290
      <varlistentry>
 
291
        <term>
 
292
          <ulink url="http://www.zeroconf.org/">Zeroconf</ulink>
 
293
        </term>
 
294
        <listitem>
 
295
          <para>
 
296
            Zeroconf is the network protocol standard used by clients
 
297
            for finding the Mandos server on the local network.
 
298
          </para>
 
299
        </listitem>
 
300
      </varlistentry>
 
301
    </variablelist>
 
302
  </refsect1>
 
303
</refentry>
 
304
<!-- Local Variables: -->
 
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<!-- time-stamp-start: "<!ENTITY TIMESTAMP [\"']" -->
 
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<!-- time-stamp-end: "[\"']>" -->
 
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<!-- time-stamp-format: "%:y-%02m-%02d" -->
 
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<!-- End: -->