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- Committer: Teddy Hogeborn
- Date: 2008-08-16 03:29:08 UTC
- Revision ID: teddy@fukt.bsnet.se-20080816032908-ihw7c05r2mnyk389
Add feature to specify custom environment variables for plugins.
* plugin-runner.c (plugin): New members "environ" and "envc" to
contain possible custom environment.
(getplugin): Return NULL on failure instead of doing exit(); all
callers changed.
(add_to_char_array): New helper function for "add_argument" and
"add_environment".
(addargument): Renamed to "add_argument". Return bool. Call
"add_to_char_array" to actually do things.
(add_environment): New; analogous to "add_argument".
(addcustomargument): Renamed to "add_to_argv" to avoid confusion
with "add_argument".
(main): New options "--global-envs" and "--envs-for" to specify
custom environment for plugins. Print environment for
plugins in debug mode. Use asprintf instead of strcpy and
strcat. Use execve() for plugins with custom environments.
Free environment for plugin when freeing plugin list.
* plugin-runner.c (plugin): New members "environ" and "envc" to
contain possible custom environment.
(getplugin): Return NULL on failure instead of doing exit(); all
callers changed.
(add_to_char_array): New helper function for "add_argument" and
"add_environment".
(addargument): Renamed to "add_argument". Return bool. Call
"add_to_char_array" to actually do things.
(add_environment): New; analogous to "add_argument".
(addcustomargument): Renamed to "add_to_argv" to avoid confusion
with "add_argument".
(main): New options "--global-envs" and "--envs-for" to specify
custom environment for plugins. Print environment for
plugins in debug mode. Use asprintf instead of strcpy and
strcat. Use execve() for plugins with custom environments.
Free environment for plugin when freeing plugin list.
- files added:
- network-protocol.txt
- files removed:
- .bzr-builddeb
- debian
- debian/po
- files renamed:
- plugins.d/mandos-client.c => plugins.d/password-request.c
- plugins.d/mandos-client.xml => plugins.d/password-request.xml
- files modified:
- Makefile
added
removed
mandos-clients.conf.xml
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<?xml version="1.0" encoding="UTF-8"?>
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<?xml version='1.0' encoding='UTF-8'?>
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<?xml-stylesheet type="text/xsl"
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href="http://docbook.sourceforge.net/release/xsl/current/manpages/docbook.xsl"?>
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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 CONFNAME "mandos-clients.conf">
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<!ENTITY CONFPATH "<filename>/etc/mandos/clients.conf</filename>">
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<!ENTITY TIMESTAMP "2010-09-26">
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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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<refentry>
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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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<title>&CONFNAME;</title>
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<!-- NWalsh's docbook scripts use this to generate the footer: -->
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<productname>&CONFNAME;</productname>
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<productnumber>&VERSION;</productnumber>
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<authorgroup>
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<author>
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<firstname>Björn</firstname>
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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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<holder>Teddy Hogeborn</holder>
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<holder>Björn Påhlsson</holder>
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<holder>Teddy Hogeborn & Björn Påhlsson</holder>
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</copyright>
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<xi:include href="legalnotice.xml"/>
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<legalnotice>
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<para>
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This manual page is free software: you can redistribute it
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and/or modify it under the terms of the GNU General Public
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License as published by the Free Software Foundation,
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either version 3 of the License, or (at your option) any
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later version.
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</para>
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<para>
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This manual page is distributed in the hope that it will
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be useful, but WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A
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PARTICULAR PURPOSE. See the GNU General Public License
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for more details.
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</para>
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<para>
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You should have received a copy of the GNU General Public
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License along with this program; If not, see
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<ulink url="http://www.gnu.org/licenses/"/>.
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</para>
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</legalnotice>
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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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<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
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Configuration file for Mandos clients
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</refpurpose>
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</refnamediv>
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<refsynopsisdiv>
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<synopsis>&CONFPATH;</synopsis>
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<synopsis>
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&CONFPATH;
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</synopsis>
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</refsynopsisdiv>
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<refsect1 id="description">
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<title>DESCRIPTION</title>
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<para>
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The file &CONFPATH; is a configuration file for <citerefentry
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><refentrytitle>mandos</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry>, read by it at startup.
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The file needs to list all clients that should be able to use
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the service. All clients listed will be regarded as enabled,
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even if a client was disabled in a previous run of the server.
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</para>
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<para>
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The format starts with a <literal>[<replaceable>section
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header</replaceable>]</literal> which is either
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<literal>[DEFAULT]</literal> or <literal>[<replaceable>client
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name</replaceable>]</literal>. The <replaceable>client
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name</replaceable> can be anything, and is not tied to a host
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name. Following the section header is any number of
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<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. Values can contain
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format strings which refer to other values in the same section,
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or values in the <quote>DEFAULT</quote> section (see <xref
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linkend="expansion"/>). Lines beginning with <quote>#</quote>
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or <quote>;</quote> are ignored and may be used to provide
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comments.
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The file &CONFPATH; is the configuration file for mandos where
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each client that will be abel to use the service need to be
85
specified. The configuration file is looked on at the startup of
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the service, so to reenable timedout clients one need to only
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restart the server. The format starts with a section under []
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which is eather <literal>[DEFAULT]</literal> or a client
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name. Values is set through the use of VAR = VALUE pair. Values
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may not be empty.
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</para>
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</refsect1>
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<refsect1 id="options">
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<title>OPTIONS</title>
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<para>
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<emphasis>Note:</emphasis> all option values are subject to
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start time expansion, see <xref linkend="expansion"/>.
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</para>
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<para>
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Unknown options are ignored. The used options are as follows:
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</para>
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<refsect1 id="default">
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<title>DEFAULTS</title>
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<para>
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The paramters for <literal>[DEFAULT]</literal> are:
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</para>
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<variablelist>
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<varlistentry>
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<term><option>approval_delay<literal> = </literal><replaceable
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>TIME</replaceable></option></term>
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<listitem>
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<para>
108
This option is <emphasis>optional</emphasis>.
109
</para>
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<para>
111
How long to wait for external approval before resorting to
112
use the <option>approved_by_default</option> value. The
113
default is <quote>0s</quote>, i.e. not to wait.
114
</para>
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<para>
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The format of <replaceable>TIME</replaceable> is the same
117
as for <varname>timeout</varname> below.
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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>approval_duration<literal> = </literal
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><replaceable>TIME</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>optional</emphasis>.
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</para>
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<para>
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How long an external approval lasts. The default is 1
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second.
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</para>
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<para>
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The format of <replaceable>TIME</replaceable> is the same
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as for <varname>timeout</varname> below.
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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>approved_by_default<literal> = </literal
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>{ <literal >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>
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<listitem>
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<para>
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Whether to approve a client by default after
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the <option>approval_delay</option>. The default
150
is <quote>True</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>checker<literal> = </literal><replaceable
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>COMMAND</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>optional</emphasis>.
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</para>
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<term><literal>timeout</literal></term>
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<listitem>
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<para>
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This option allows you to override the default timeout
107
that clients will get. By default mandos will use 1hr.
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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><literal>interval</literal></term>
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<listitem>
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<para>
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This option allows you to override the default interval
117
used between checkups for disconnected clients. By default
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mandos will use 5m.
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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><literal>checker</literal></term>
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<listitem>
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<para>
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This option allows you to override the default shell
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command that the server will use to check if the client is
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still up. Any output of the command will be ignored, only
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the exit code is checked: If the exit code of the command
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is zero, the client is considered up. The command will be
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run using <quote><command><filename>/bin/sh</filename>
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<option>-c</option></command></quote>, so
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<varname>PATH</varname> will be searched. The default
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value for the checker command is <quote><literal
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><command>fping</command> <option>-q</option> <option
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>--</option> %%(host)s</literal></quote>.
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</para>
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<para>
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In addition to normal start time expansion, this option
177
will also be subject to runtime expansion; see <xref
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linkend="expansion"/>.
179
</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>fingerprint<literal> = </literal
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><replaceable>HEXSTRING</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>required</emphasis>.
189
</para>
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<para>
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This option sets the OpenPGP fingerprint that identifies
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the public key that clients authenticate themselves with
193
through TLS. The string needs to be in hexidecimal form,
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but spaces or upper/lower case are not significant.
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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><literal>host = </literal><replaceable
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>STRING</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>optional</emphasis>, but highly
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<emphasis>recommended</emphasis> unless the
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<option>checker</option> option is modified to a
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non-standard value without <quote>%%(host)s</quote> in it.
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</para>
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<para>
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Host name for this client. This is not used by the server
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directly, but can be, and is by default, used by the
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checker. See the <option>checker</option> option.
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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>interval<literal> = </literal><replaceable
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>TIME</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>optional</emphasis>.
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</para>
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<para>
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How often to run the checker to confirm that a client is
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still up. <emphasis>Note:</emphasis> a new checker will
227
not be started if an old one is still running. The server
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will wait for a checker to complete until the below
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<quote><varname>timeout</varname></quote> occurs, at which
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time the client will be disabled, and any running checker
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killed. The default interval is 5 minutes.
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</para>
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<para>
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The format of <replaceable>TIME</replaceable> is the same
235
as for <varname>timeout</varname> below.
236
</para>
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</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>secfile<literal> = </literal><replaceable
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>FILENAME</replaceable></option></term>
243
<listitem>
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<para>
245
This option is only used if <option>secret</option> is not
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specified, in which case this option is
247
<emphasis>required</emphasis>.
248
</para>
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<para>
250
Similar to the <option>secret</option>, except the secret
251
data is in an external file. The contents of the file
252
should <emphasis>not</emphasis> be base64-encoded, but
253
will be sent to clients verbatim.
254
</para>
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<para>
256
File names of the form <filename>~user/foo/bar</filename>
257
and <filename>$<envar>ENVVAR</envar>/foo/bar</filename>
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are supported.
259
</para>
260
</listitem>
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</varlistentry>
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<varlistentry>
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<term><option>secret<literal> = </literal><replaceable
265
>BASE64_ENCODED_DATA</replaceable></option></term>
266
<listitem>
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<para>
268
If this option is not specified, the <option
269
>secfile</option> option is <emphasis>required</emphasis>
270
to be present.
271
</para>
272
<para>
273
If present, this option must be set to a string of
274
base64-encoded binary data. It will be decoded and sent
275
to the client matching the above
276
<option>fingerprint</option>. This should, of course, be
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OpenPGP encrypted data, decryptable only by the client.
278
The program <citerefentry><refentrytitle><command
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>mandos-keygen</command></refentrytitle><manvolnum
280
>8</manvolnum></citerefentry> can, using its
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<option>--password</option> option, be used to generate
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this, if desired.
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</para>
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<para>
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Note: this value of this option will probably be very
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long. A useful feature to avoid having unreadably-long
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lines is that a line beginning with white space adds to
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the value of the previous line, RFC 822-style.
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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>timeout<literal> = </literal><replaceable
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>TIME</replaceable></option></term>
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<listitem>
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<para>
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This option is <emphasis>optional</emphasis>.
299
</para>
300
<para>
301
The timeout is how long the server will wait (for either a
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successful checker run or a client receiving its secret)
303
until a client is disabled and not allowed to get the data
304
this server holds. By default Mandos will use 1 hour.
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</para>
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<para>
307
The <replaceable>TIME</replaceable> is specified as a
308
space-separated number of values, each of which is a
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number and a one-character suffix. The suffix must be one
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of <quote>d</quote>, <quote>s</quote>, <quote>m</quote>,
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<quote>h</quote>, and <quote>w</quote> for days, seconds,
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minutes, hours, and weeks, respectively. The values are
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added together to give the total time value, so all of
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<quote><literal>330s</literal></quote>,
315
<quote><literal>110s 110s 110s</literal></quote>, and
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<quote><literal>5m 30s</literal></quote> will give a value
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of five minutes and thirty seconds.
318
</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="expansion">
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<title>EXPANSION</title>
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<para>
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There are two forms of expansion: Start time expansion and
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runtime expansion.
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</para>
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<refsect2 id="start_time_expansion">
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<title>START TIME EXPANSION</title>
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<para>
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Any string in an option value of the form
335
<quote><literal>%(<replaceable>foo</replaceable>)s</literal
336
></quote> will be replaced by the value of the option
337
<varname>foo</varname> either in the same section, or, if it
338
does not exist there, the <literal>[DEFAULT]</literal>
339
section. This is done at start time, when the configuration
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file is read.
341
</para>
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<para>
343
Note that this means that, in order to include an actual
344
percent character (<quote>%</quote>) in an option value, two
345
percent characters in a row (<quote>%%</quote>) must be
346
entered.
347
</para>
348
</refsect2>
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<refsect2 id="runtime_expansion">
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<title>RUNTIME EXPANSION</title>
351
<para>
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This is currently only done for the <varname>checker</varname>
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option.
354
</para>
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<para>
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Any string in an option value of the form
357
<quote><literal>%%(<replaceable>foo</replaceable>)s</literal
358
></quote> will be replaced by the value of the attribute
359
<varname>foo</varname> of the internal
360
<quote><classname>Client</classname></quote> object in the
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Mandos server. The currently allowed values for
362
<replaceable>foo</replaceable> are:
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<quote><literal>approval_delay</literal></quote>,
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<quote><literal>approval_duration</literal></quote>,
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<quote><literal>created</literal></quote>,
366
<quote><literal>enabled</literal></quote>,
367
<quote><literal>fingerprint</literal></quote>,
368
<quote><literal>host</literal></quote>,
369
<quote><literal>interval</literal></quote>,
370
<quote><literal>last_approval_request</literal></quote>,
371
<quote><literal>last_checked_ok</literal></quote>,
372
<quote><literal>last_enabled</literal></quote>,
373
<quote><literal>name</literal></quote>,
374
<quote><literal>timeout</literal></quote>, and, if using
375
D-Bus, <quote><literal>dbus_object_path</literal></quote>.
376
See the source code for details. <emphasis role="strong"
377
>Currently, <emphasis>none</emphasis> of these attributes
378
except <quote><literal>host</literal></quote> are guaranteed
379
to be valid in future versions.</emphasis> Therefore, please
380
let the authors know of any attributes that are useful so they
381
may be preserved to any new versions of this software.
382
</para>
383
<para>
384
Note that this means that, in order to include an actual
385
percent character (<quote>%</quote>) in a
386
<varname>checker</varname> option, <emphasis>four</emphasis>
387
percent characters in a row (<quote>%%%%</quote>) must be
388
entered. Also, a bad format here will lead to an immediate
389
but <emphasis>silent</emphasis> run-time fatal exit; debug
390
mode is needed to expose an error of this kind.
391
</para>
392
</refsect2>
393
394
</refsect1>
395
396
<refsect1 id="files">
397
<title>FILES</title>
398
<para>
399
The file described here is &CONFPATH;
400
</para>
401
</refsect1>
402
403
<refsect1 id="bugs">
404
<title>BUGS</title>
405
<para>
406
The format for specifying times for <varname>timeout</varname>
407
and <varname>interval</varname> is not very good.
408
</para>
409
<para>
410
The difference between
411
<literal>%%(<replaceable>foo</replaceable>)s</literal> and
412
<literal>%(<replaceable>foo</replaceable>)s</literal> is
413
obscure.
414
</para>
415
</refsect1>
416
417
<refsect1 id="example">
418
<title>EXAMPLE</title>
128
command that the server will use to check up if the client
129
is still up. By default mandos will "fping -q -- %%(host)s"
130
</para>
131
</listitem>
132
</varlistentry>
133
134
</variablelist>
135
</refsect1>
136
137
<refsect1 id="clients">
138
<title>CLIENTS</title>
139
<para>
140
The paramters for clients are:
141
</para>
142
143
<variablelist>
144
145
<varlistentry>
146
<term><literal>fingerprint</literal></term>
147
<listitem>
148
<para>
149
This option sets the openpgp fingerprint that identifies
150
the public certificate that clients authenticates themself
151
through gnutls. The string need to be in hex-decimal form.
152
</para>
153
</listitem>
154
</varlistentry>
155
156
<varlistentry>
157
<term><literal>secret</literal></term>
158
<listitem>
159
<para>
160
Base 64 encoded OpenPGP encrypted password encrypted by
161
the clients openpgp certificate.
162
</para>
163
</listitem>
164
</varlistentry>
165
166
<varlistentry>
167
<term><literal>secfile</literal></term>
168
<listitem>
169
<para>
170
Base 64 encoded OpenPGP encrypted password encrypted by
171
the clients openpgp certificate as a binary file.
172
</para>
173
</listitem>
174
</varlistentry>
175
176
<varlistentry>
177
<term><literal>host</literal></term>
178
<listitem>
179
<para>
180
Host name that can be used in for checking that the client is up.
181
</para>
182
</listitem>
183
</varlistentry>
184
185
<varlistentry>
186
<term><literal>checker</literal></term>
187
<listitem>
188
<para>
189
Shell command that the server will use to check up if a
190
client is still up.
191
</para>
192
</listitem>
193
</varlistentry>
194
195
<varlistentry>
196
<term><literal>timeout</literal></term>
197
<listitem>
198
<para>
199
Duration that a client can be down whitout be removed from
200
the client list.
201
</para>
202
</listitem>
203
</varlistentry>
204
205
</variablelist>
206
</refsect1>
207
208
<refsect1 id="examples">
209
<title>EXAMPLES</title>
419
210
<informalexample>
420
211
<programlisting>
421
212
[DEFAULT]
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interval = 5m
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checker = fping -q -- %%(host)s
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216
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# Client "foo"
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[foo]
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[example_client]
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fingerprint = 7788 2722 5BA7 DE53 9C5A 7CFA 59CF F7CD BD9A 5920
219
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secret =
430
221
hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
431
222
REJMVv7lBSrPE2132Lmd2gqF1HeLKDJRSVxJpt6xoWOChGHg+TMyXDxK+N
442
233
5MHdW9AYsNJZAQSOpirE4Xi31CSlWAi9KV+cUCmWF5zOFy1x23P6PjdaRm
443
234
4T2zw4dxS5NswXWU0sVEXxjs6PYxuIiCTL7vdpx8QjBkrPWDrAbcMyBr2O
444
235
QlnHIvPzEArRQLo=
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host = foo.example.org
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interval = 1m
236
=iHhv
447
237
448
# Client "bar"
449
[bar]
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fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
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secfile = /etc/mandos/bar-secret
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timeout = 15m
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approved_by_default = False
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approval_delay = 30s
238
host = localhost
239
interval = 5m
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</programlisting>
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</informalexample>
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</refsect1>
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</refsect1>
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<refsect1 id="see_also">
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<title>SEE ALSO</title>
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<refsect1 id="files">
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<title>FILES</title>
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<para>
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<citerefentry><refentrytitle>mandos-keygen</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>mandos.conf</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry>,
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<citerefentry><refentrytitle>mandos</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry>
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The file described here is &CONFPATH;
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</para>
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</refsect1>
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</refentry>
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<!-- 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: -->
Loggerhead is a web-based interface for Breezy
Version: 2.0.2.dev0