/mandos/trunk

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  • Committer: Teddy Hogeborn
  • Date: 2015-08-10 09:00:23 UTC
  • Revision ID: teddy@recompile.se-20150810090023-fz6vjqr7zf33e2tf
Support the standard org.freedesktop.DBus.ObjectManager interface.

Now that the D-Bus standard has an interface to keep track of new and
removed objects, use that instead of our own methods.  This deprecates
our D-Bus methods "GetAllClients" and "GetAllClientsWithProperties"
and the signals "ClientAdded" and "ClientRemoved", all on the server
interface "se.recompile.Mandos".

* DBUS-API: Removed references to deprecated methods and signals;
  insert reference to the org.freedesktop.DBus.ObjectManager
  interface.
* mandos (DBusObjectWithProperties._get_all_interface_names): New.
  (dbus.OBJECT_MANAGER_IFACE): If not present, monkey patch.
  (DBusObjectWithObjectManager): New.
  (main/MandosDBusService): Inherit from DBusObjectWithObjectManager.
  (main/MandosDBusService.ClientRemoved): Annotate as deprecated.
  (main/MandosDBusService.GetAllClients): - '' -
  (main/MandosDBusService.GetAllClientsWithProperties): Annotate as
                                                        deprecated.
                                                        Also only
                                                        return
                                                        properties on
                                                        client
                                                        interface.
  (main/MandosDBusService.RemoveClient): Call client_removed_signal
                                         instead of ClientRemoved.
  (main/MandosDBusService.GetManagedObjects): New.
  (main/MandosDBusService.client_added_signal): New.
  (main/MandosDBusService.client_removed_signal): - '' -
  (main/cleanup): Call "client_removed_signal" instead of sending
                  "ClientRemoved" signal directly.
  (main): Call "client_added_signal" instead of sending "ClientAdded"
          signal directly.
* mandos-ctl: Use GetManagedObjects instead of
              GetAllClientsWithProperties.  Also, show better error
              message in case of failure to connect to the D-Bus

* mandos-monitor (MandosClientPropertyCache.properties_changed):
  Bug fix; only update properties on client interface.
  (UserInterface.find_and_remove_client): Change to accept arguments
                                          from InterfacesRemoved
                                          signal.  Also, bug fix:
                                          working error message when
                                          removing unknown client.
  (UserInterface.add_new_client): Change to accept arguments from
                                  InterfacesRemoved signal.  Pass
                                  properties to MandosClientWidget
                                  constructor.
  (UserInterface.run): Connect find_and_remove_client method to
                       InterfacesRemoved signal and the add_new_client
                       method to the InterfacesAdded signal.

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Lines of Context:
plugin-runner.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 VERSION "1.0">
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<!ENTITY COMMANDNAME "plugin-runner">
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<!ENTITY TIMESTAMP "2008-09-02">
 
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<!ENTITY TIMESTAMP "2015-07-20">
 
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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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    <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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    <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@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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      <year>2014</year>
 
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      <year>2015</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>&COMMANDNAME;</refentrytitle>
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    <manvolnum>8mandos</manvolnum>
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  <refnamediv>
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    <refname><command>&COMMANDNAME;</command></refname>
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    <refpurpose>
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      Run Mandos plugins.  Pass data from first succesful one.
 
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      Run Mandos plugins, pass data from first to succeed.
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    </refpurpose>
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  </refnamediv>
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  <refsynopsisdiv>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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      <group rep="repeat">
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        <arg choice="plain"><option>--global-env=<replaceable
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        >VAR</replaceable><literal>=</literal><replaceable
 
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        >ENV</replaceable><literal>=</literal><replaceable
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        >value</replaceable></option></arg>
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        <arg choice="plain"><option>-G
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        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
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        <replaceable>ENV</replaceable><literal>=</literal><replaceable
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        >value</replaceable> </option></arg>
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      </group>
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      <sbr/>
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      <arg><option>--plugin-dir=<replaceable
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      >DIRECTORY</replaceable></option></arg>
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      <sbr/>
 
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      <arg><option>--plugin-helper-dir=<replaceable
 
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      >DIRECTORY</replaceable></option></arg>
 
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      <sbr/>
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      <arg><option>--config-file=<replaceable
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      >FILE</replaceable></option></arg>
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      <sbr/>
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    <title>DESCRIPTION</title>
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    <para>
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      <command>&COMMANDNAME;</command> is a program which is meant to
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      be specified as <quote>keyscript</quote> in <citerefentry>
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      <refentrytitle>crypttab</refentrytitle>
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      <manvolnum>5</manvolnum></citerefentry> for the root disk.  The
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      aim of this program is therefore to output a password, which
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      then <citerefentry><refentrytitle>cryptsetup</refentrytitle>
 
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      be specified as a <quote>keyscript</quote> for the root disk in
 
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      <citerefentry><refentrytitle>crypttab</refentrytitle>
 
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      <manvolnum>5</manvolnum></citerefentry>.  The aim of this
 
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      program is therefore to output a password, which then
 
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      <citerefentry><refentrytitle>cryptsetup</refentrytitle>
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      <manvolnum>8</manvolnum></citerefentry> will use to unlock the
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      root disk.
150
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    </para>
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    <variablelist>
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      <varlistentry>
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        <term><option>--global-env
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        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
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        <replaceable>ENV</replaceable><literal>=</literal><replaceable
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        >value</replaceable></option></term>
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        <term><option>-G
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        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
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        <replaceable>ENV</replaceable><literal>=</literal><replaceable
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        >value</replaceable></option></term>
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        <listitem>
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          <para>
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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>--disable
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        <replaceable>PLUGIN</replaceable></option></term>
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            Disable the plugin named
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            <replaceable>PLUGIN</replaceable>.  The plugin will not be
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            started.
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          </para>       
 
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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>--enable
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        <replaceable>PLUGIN</replaceable></option></term>
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            Re-enable the plugin named
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            <replaceable>PLUGIN</replaceable>.  This is only useful to
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            undo a previous <option>--disable</option> option, maybe
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            from the config file.
 
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            from the configuration file.
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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>--groupid
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        <replaceable>ID</replaceable></option></term>
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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>--userid
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        <replaceable>ID</replaceable></option></term>
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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>--plugin-dir
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        <replaceable>DIRECTORY</replaceable></option></term>
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      </varlistentry>
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      <varlistentry>
 
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        <term><option>--plugin-helper-dir
 
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        <replaceable>DIRECTORY</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            Specify a different plugin helper directory.  The default
 
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            is <filename>/lib/mandos/plugin-helpers</filename>, which
 
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            will exist in the initial <acronym>RAM</acronym> disk
 
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            environment.  (This will simply be passed to all plugins
 
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            via the <envar>MANDOSPLUGINHELPERDIR</envar> environment
 
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            variable.  See <xref linkend="writing_plugins"/>)
 
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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>--config-file
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        <replaceable>FILE</replaceable></option></term>
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        <listitem>
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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>--version</option></term>
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        <term><option>-V</option></term>
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      </varlistentry>
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    </variablelist>
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  </refsect1>
380
 
 
 
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  <refsect1 id="overview">
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    <title>OVERVIEW</title>
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    <xi:include href="overview.xml"/>
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      code will make this plugin-runner output the password from that
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      plugin, stop any other plugins, and exit.
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    </para>
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    <refsect2 id="writing_plugins">
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      <title>WRITING PLUGINS</title>
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      <para>
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        console.
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      </para>
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      <para>
 
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        If the password is a single-line, manually entered passprase,
 
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        a final trailing newline character should
 
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        <emphasis>not</emphasis> be printed.
 
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      </para>
 
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      <para>
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        The plugin will run in the initial RAM disk environment, so
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        care must be taken not to depend on any files or running
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        services not available there.
 
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        services not available there.  Any helper executables required
 
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        by the plugin (which are not in the <envar>PATH</envar>) can
 
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        be placed in the plugin helper directory, the name of which
 
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        will be made available to the plugin via the
 
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        <envar>MANDOSPLUGINHELPERDIR</envar> environment variable.
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      </para>
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      <para>
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        The plugin must exit cleanly and free all allocated resources
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      </para>
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      <para>
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        The plugin must not use resources, like for instance reading
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        from the standard input, without knowing that no other plugins
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        are also using it.
 
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        from the standard input, without knowing that no other plugin
 
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        is also using it.
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      </para>
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      <para>
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        It is useful, but not required, for the plugin to take the
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      only passes on its environment to all the plugins.  The
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      environment passed to plugins can be modified using the
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      <option>--global-env</option> and <option>--env-for</option>
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      optins.
 
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      options.  Also, the <option>--plugin-helper-dir</option> option
 
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      will affect the environment variable
 
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      <envar>MANDOSPLUGINHELPERDIR</envar> for the plugins.
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    </para>
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  </refsect1>
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    </para>
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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> -->
517
 
<!--   </refsect1> -->
 
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  <refsect1 id="bugs">
 
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    <title>BUGS</title>
 
552
    <para>
 
553
      The <option>--config-file</option> option is ignored when
 
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      specified from within a configuration file.
 
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    </para>
 
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  </refsect1>
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  <refsect1 id="examples">
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    <title>EXAMPLE</title>
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    </informalexample>
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    <informalexample>
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      <para>
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        Run plugins from a different directory and add a special
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        option to the <citerefentry><refentrytitle
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        >password-request</refentrytitle>
 
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        Read a different configuration file, run plugins from a
 
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        different directory, specify an alternate plugin helper
 
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        directory and add two options to the
 
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        <citerefentry><refentrytitle >mandos-client</refentrytitle>
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        <manvolnum>8mandos</manvolnum></citerefentry> plugin:
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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;  --plugin-dir=plugins.d --options-for=password-request:--keydir=keydir</userinput>
 
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<userinput>cd /etc/keys/mandos; &COMMANDNAME;  --config-file=/etc/mandos/plugin-runner.conf --plugin-dir /usr/lib/x86_64-linux-gnu/mandos/plugins.d --plugin-helper-dir /usr/lib/x86_64-linux-gnu/mandos/plugin-helpers --options-for=mandos-client:--pubkey=pubkey.txt,--seckey=seckey.txt</userinput>
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      </para>
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    </informalexample>
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      non-privileged.  This user and group is then what all plugins
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      will be started as.  Therefore, the only way to run a plugin as
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      a privileged user is to have the set-user-ID or set-group-ID bit
587
 
      set on the plugin executable files (see <citerefentry>
 
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      set on the plugin executable file (see <citerefentry>
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      <refentrytitle>execve</refentrytitle><manvolnum>2</manvolnum>
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      </citerefentry>).
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    </para>
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    <para>
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      If this program is used as a keyscript in <citerefentry
593
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      ><refentrytitle>crypttab</refentrytitle><manvolnum>5</manvolnum>
594
 
      </citerefentry>, there is a risk that if this program fails to
595
 
      work, there might be no way to boot the system except for
596
 
      booting from another media and editing the initial RAM disk
 
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      </citerefentry>, there is a slight risk that if this program
 
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      fails to work, there might be no way to boot the system except
 
636
      for booting from another media and editing the initial RAM disk
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      image to not run this program.  This is, however, unlikely,
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      since the <citerefentry><refentrytitle
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      >password-prompt</refentrytitle><manvolnum>8mandos</manvolnum>
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  <refsect1 id="see_also">
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    <title>SEE ALSO</title>
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    <para>
 
651
      <citerefentry><refentrytitle>intro</refentrytitle>
 
652
      <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>
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      <manvolnum>8</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>password-prompt</refentrytitle>
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      <manvolnum>8mandos</manvolnum></citerefentry>,
621
 
      <citerefentry><refentrytitle>password-request</refentrytitle>
 
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      <citerefentry><refentrytitle>mandos-client</refentrytitle>
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      <manvolnum>8mandos</manvolnum></citerefentry>
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    </para>
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  </refsect1>