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  • Committer: Teddy Hogeborn
  • Date: 2012-06-17 02:30:59 UTC
  • Revision ID: teddy@recompile.se-20120617023059-em4nfnxg1tsn64xj
* plugins.d/mandos-client (start_mandos_communication): Bug fix; skip
                                                        non-specified
                                                        interfaces.
  (main): Use lower_privileges() consistently.  Bug fix: Don't remove
          "none" from list of interfaces.  Make --interface=none work
          again by not bringing up interfaces specified after "none".
* plugins.d/mandos-client.xml (OPTIONS): Document new meaning of
                                         specifying --interface=none
                                         together with other
                                         interface names,

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plugins.d/mandos-client.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-client">
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<!ENTITY TIMESTAMP "2018-02-08">
 
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<!ENTITY TIMESTAMP "2012-06-17">
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<!ENTITY % common SYSTEM "../common.ent">
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%common;
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]>
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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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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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      </arg>
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      <sbr/>
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      <arg>
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        <option>--dh-params <replaceable>FILE</replaceable></option>
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      </arg>
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      <sbr/>
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      <arg>
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        <option>--delay <replaceable>SECONDS</replaceable></option>
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      </arg>
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      <sbr/>
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            assumed to separate the address from the port number.
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          </para>
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          <para>
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            Normally, Zeroconf would be used to locate Mandos servers,
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            in which case this option would only be used when testing
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            and debugging.
 
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            This option is normally only useful for testing and
 
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            debugging.
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          </para>
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        </listitem>
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      </varlistentry>
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          <para>
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            <replaceable>NAME</replaceable> can be the string
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            <quote><literal>none</literal></quote>; this will make
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            <command>&COMMANDNAME;</command> only bring up interfaces
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            specified <emphasis>before</emphasis> this string.  This
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            is not recommended, and only meant for advanced users.
 
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            <command>&COMMANDNAME;</command> not bring up
 
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            <emphasis>any</emphasis> interfaces specified
 
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            <emphasis>after</emphasis> this string.  This is not
 
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            recommended, and only meant for advanced users.
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          </para>
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        </listitem>
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      </varlistentry>
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        <listitem>
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          <para>
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            Sets the number of bits to use for the prime number in the
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            TLS Diffie-Hellman key exchange.  The default value is
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            selected automatically based on the OpenPGP key.  Note
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            that if the <option>--dh-params</option> option is used,
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            the values from that file will be used instead.
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          </para>
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        </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term><option>--dh-params=<replaceable
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        >FILE</replaceable></option></term>
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        <listitem>
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          <para>
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            Specifies a PEM-encoded PKCS#3 file to read the parameters
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            needed by the TLS Diffie-Hellman key exchange from.  If
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            this option is not given, or if the file for some reason
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            could not be used, the parameters will be generated on
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            startup, which will take some time and processing power.
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            Those using servers running under time, power or processor
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            constraints may want to generate such a file in advance
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            and use this option.
 
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            TLS Diffie-Hellman key exchange.  Default is 1024.
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          </para>
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        </listitem>
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      </varlistentry>
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  <refsect1 id="environment">
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    <title>ENVIRONMENT</title>
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    <variablelist>
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      <varlistentry>
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        <term><envar>MANDOSPLUGINHELPERDIR</envar></term>
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        <listitem>
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          <para>
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            This environment variable will be assumed to contain the
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            directory containing any helper executables.  The use and
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            nature of these helper executables, if any, is
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            purposefully not documented.
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        </para>
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        </listitem>
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      </varlistentry>
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    </variablelist>
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    <para>
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      This program does not use any other environment variables, not
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      even the ones provided by <citerefentry><refentrytitle
 
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      This program does not use any environment variables, not even
 
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      the ones provided by <citerefentry><refentrytitle
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      >cryptsetup</refentrytitle><manvolnum>8</manvolnum>
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    </citerefentry>.
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    </para>
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              It is not necessary to print any non-executable files
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              already in the network hook directory, these will be
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              copied implicitly if they otherwise satisfy the name
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              requirements.
 
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              requirement.
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            </para>
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          </listitem>
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        </varlistentry>
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    </variablelist>
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  </refsect1>
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  <refsect1 id="bugs">
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    <title>BUGS</title>
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    <xi:include href="../bugs.xml"/>
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  </refsect1>
 
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<!--   <refsect1 id="bugs"> -->
 
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<!--     <title>BUGS</title> -->
 
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<!--     <para> -->
 
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<!--     </para> -->
 
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<!--   </refsect1> -->
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  <refsect1 id="example">
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    <title>EXAMPLE</title>
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    </para>
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    <informalexample>
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      <para>
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        Normal invocation needs no options, if the network interfaces
 
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        Normal invocation needs no options, if the network interface
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        can be automatically determined:
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      </para>
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      <para>
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    </informalexample>
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    <informalexample>
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      <para>
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        Search for Mandos servers (and connect to them) using one
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        specific interface:
 
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        Search for Mandos servers (and connect to them) using another
 
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        interface:
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      </para>
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      <para>
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        <!-- do not wrap this line -->
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    <para>
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      It will also help if the checker program on the server is
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      configured to request something from the client which can not be
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      spoofed by someone else on the network, like SSH server key
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      fingerprints, and unlike unencrypted <acronym>ICMP</acronym>
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      echo (<quote>ping</quote>) replies.
 
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      spoofed by someone else on the network, unlike unencrypted
 
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      <acronym>ICMP</acronym> echo (<quote>ping</quote>) replies.
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    </para>
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    <para>
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      <emphasis>Note</emphasis>: This makes it completely insecure to
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      </varlistentry>
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      <varlistentry>
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        <term>
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          <ulink url="https://www.gnutls.org/">GnuTLS</ulink>
 
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          <ulink url="http://www.gnu.org/software/gnutls/"
 
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          >GnuTLS</ulink>
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        </term>
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      <listitem>
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        <para>
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      </varlistentry>
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      <varlistentry>
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        <term>
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          <ulink url="https://www.gnupg.org/related_software/gpgme/"
 
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          <ulink url="http://www.gnupg.org/related_software/gpgme/"
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                 >GPGME</ulink>
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        </term>
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        <listitem>
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              <para>
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                This client uses IPv6 link-local addresses, which are
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                immediately usable since a link-local addresses is
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                automatically assigned to a network interface when it
 
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                automatically assigned to a network interfaces when it
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                is brought up.
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              </para>
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            </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term>
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          RFC 5246: <citetitle>The Transport Layer Security (TLS)
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          Protocol Version 1.2</citetitle>
 
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          RFC 4346: <citetitle>The Transport Layer Security (TLS)
 
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          Protocol Version 1.1</citetitle>
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        </term>
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      <listitem>
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        <para>
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          TLS 1.2 is the protocol implemented by GnuTLS.
 
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          TLS 1.1 is the protocol implemented by GnuTLS.
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        </para>
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      </listitem>
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      </varlistentry>
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      </varlistentry>
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      <varlistentry>
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        <term>
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          RFC 6091: <citetitle>Using OpenPGP Keys for Transport Layer
 
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          RFC 5081: <citetitle>Using OpenPGP Keys for Transport Layer
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          Security</citetitle>
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        </term>
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      <listitem>