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Viewing changes to plugins.d/mandos-client.xml

* Makefile (run-client): Add "--network-hook-dir" option.
* plugin-runner.c (main): Only try to work around Debian bug #633582
                          if started as root.
* plugins.d/mandos-client.c (run_network_hooks): Bug fix: Run all
                                                 network hooks, not
                                                 just the first one.
                                                 Also add debug output.
  (main): Only try to work around Debian bug #633582 or run network
          hooks as root if started as root.

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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 "2008-10-03">
 
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<!ENTITY TIMESTAMP "2011-10-03">
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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>2011</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>--delay <replaceable>SECONDS</replaceable></option>
 
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      </arg>
 
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      <sbr/>
 
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      <arg>
 
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        <option>--retry <replaceable>SECONDS</replaceable></option>
 
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      </arg>
 
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      <sbr/>
 
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      <arg>
 
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        <option>--network-hook-dir<replaceable>DIR</replaceable></option>
 
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      </arg>
 
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      <sbr/>
 
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      <arg>
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        <option>--debug</option>
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      </arg>
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    </cmdsynopsis>
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      <command>&COMMANDNAME;</command> is a client program that
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      communicates with <citerefentry><refentrytitle
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      >mandos</refentrytitle><manvolnum>8</manvolnum></citerefentry>
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      to get a password.  It uses IPv6 link-local addresses to get
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      network connectivity, Zeroconf to find servers, and TLS with an
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      OpenPGP key to ensure authenticity and confidentiality.  It
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      keeps running, trying all servers on the network, until it
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      receives a satisfactory reply or a TERM signal is received.
 
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      to get a password.  In slightly more detail, this client program
 
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      brings up a network interface, uses the interface’s IPv6
 
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      link-local address to get network connectivity, uses Zeroconf to
 
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      find servers on the local network, and communicates with servers
 
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      using TLS with an OpenPGP key to ensure authenticity and
 
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      confidentiality.  This client program keeps running, trying all
 
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      servers on the network, until it receives a satisfactory reply
 
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      or a TERM signal.  After all servers have been tried, all
 
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      servers are periodically retried.  If no servers are found it
 
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      will wait indefinitely for new servers to appear.
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    </para>
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    <para>
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      This program is not meant to be run directly; it is really meant
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      </varlistentry>
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      <varlistentry>
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        <term><option>--interface=
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        <replaceable>NAME</replaceable></option></term>
 
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        <term><option>--interface=<replaceable
 
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        >NAME</replaceable></option></term>
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        <term><option>-i
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        <replaceable>NAME</replaceable></option></term>
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        <listitem>
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          <para>
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            Network interface that will be brought up and scanned for
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            Mandos servers to connect to.  The default it
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            <quote><literal>eth0</literal></quote>.
 
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            Mandos servers to connect to.  The default is the empty
 
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            string, which will automatically choose an appropriate
 
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            interface.
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          </para>
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          <para>
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            If the <option>--connect</option> option is used, this
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            specifies the interface to use to connect to the address
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            given.
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          </para>
 
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          <para>
 
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            Note that since this program will normally run in the
 
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            initial RAM disk environment, the interface must be an
 
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            interface which exists at that stage.  Thus, the interface
 
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            can not be a pseudo-interface such as <quote>br0</quote>
 
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            or <quote>tun0</quote>; such interfaces will not exist
 
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            until much later in the boot process, and can not be used
 
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            by this program.
 
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          </para>
 
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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 not use
 
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            any specific interface, and will not bring up an interface
 
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            on startup.  This is not recommended, and only meant for
 
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            advanced users.
 
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          </para>
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        </listitem>
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      </varlistentry>
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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>--delay=<replaceable
 
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        >SECONDS</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            After bringing the network interface up, the program waits
 
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            for the interface to arrive in a <quote>running</quote>
 
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            state before proceeding.  During this time, the kernel log
 
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            level will be lowered to reduce clutter on the system
 
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            console, alleviating any other plugins which might be
 
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            using the system console.  This option sets the upper
 
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            limit of seconds to wait.  The default is 2.5 seconds.
 
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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>--retry=<replaceable
 
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        >SECONDS</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            All Mandos servers are tried repeatedly until a password
 
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            is received.  This value specifies, in seconds, how long
 
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            between each successive try <emphasis>for the same
 
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            server</emphasis>.  The default is 10 seconds.
 
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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>--network-hook-dir=<replaceable
 
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        >DIR</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            Network hook directory.  The default directory is
 
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            <quote><filename class="directory"
 
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            >/lib/mandos/network-hooks.d</filename></quote>.
 
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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>--debug</option></term>
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      server could be found and the password received from it could be
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      successfully decrypted and output on standard output.  The
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      program will exit with a non-zero exit status only if a critical
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      error occurs.  Otherwise, it will forever connect to new
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      <application>Mandos</application> servers as they appear, trying
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      to get a decryptable password and print it.
 
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      error occurs.  Otherwise, it will forever connect to any
 
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      discovered <application>Mandos</application> servers, trying to
 
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      get a decryptable password and print it.
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    </para>
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  </refsect1>
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    <informalexample>
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      <para>
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        Run in debug mode, with a custom key, and do not use Zeroconf
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        to locate a server; connect directly to the IPv6 address
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        <quote><systemitem class="ipaddress"
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        >2001:db8:f983:bd0b:30de:ae4a:71f2:f672</systemitem></quote>,
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        port 4711, using interface eth2:
 
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        to locate a server; connect directly to the IPv6 link-local
 
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        address <quote><systemitem class="ipaddress"
 
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        >fe80::aede:48ff:fe71:f6f2</systemitem></quote>, port 4711,
 
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        using interface eth2:
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      </para>
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      <para>
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<!-- do not wrap this line -->
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<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt --connect 2001:db8:f983:bd0b:30de:ae4a:71f2:f672:4711 --interface eth2</userinput>
 
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<userinput>&COMMANDNAME; --debug --pubkey keydir/pubkey.txt --seckey keydir/seckey.txt --connect fe80::aede:48ff:fe71:f6f2:4711 --interface eth2</userinput>
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      </para>
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    </informalexample>
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  <refsect1 id="see_also">
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    <title>SEE ALSO</title>
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    <para>
 
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      <citerefentry><refentrytitle>intro</refentrytitle>
 
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      <manvolnum>8mandos</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>cryptsetup</refentrytitle>
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      <manvolnum>8</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>crypttab</refentrytitle>