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  • Committer: Teddy Hogeborn
  • Date: 2024-09-09 04:24:39 UTC
  • Revision ID: teddy@recompile.se-20240909042439-j85mr20uli2hnyis
Eliminate compiler warnings

Many programs use nested functions, which now result in a linker
warning about executable stack.  Hide this warning.  Also, rewrite a
loop in the plymouth plugin to avoid warning about signed overflow.
This change also makes the plugin pick the alphabetically first
process entry instead of the last, in case many plymouth processes are
found (which should be unlikely).

* Makefile (plugin-runner, dracut-module/password-agent,
  plugins.d/password-prompt, plugins.d/mandos-client,
  plugins.d/plymouth): New target; set LDFLAGS to add "-Xlinker
  --no-warn-execstack".
* plugins.d/plymouth.c (get_pid): When no pid files are found, and we
  are looking through the process list, go though it from the start
  instead of from the end, i.e. in normal alphabetical order and not
  in reverse order.

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mandos-keygen.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 "mandos-keygen">
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<!ENTITY TIMESTAMP "2008-09-12">
 
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<!ENTITY TIMESTAMP "2019-07-18">
 
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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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      <year>2016</year>
 
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      <year>2017</year>
 
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      <year>2018</year>
 
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      <year>2019</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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        <replaceable>TIME</replaceable></option></arg>
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      </group>
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      <sbr/>
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      <arg><option>--force</option></arg>
 
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      <group>
 
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        <arg choice="plain"><option>--tls-keytype
 
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        <replaceable>KEYTYPE</replaceable></option></arg>
 
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        <arg choice="plain"><option>-T
 
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        <replaceable>KEYTYPE</replaceable></option></arg>
 
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      </group>
 
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      <sbr/>
 
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      <group>
 
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        <arg choice="plain"><option>--force</option></arg>
 
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        <arg choice="plain"><option>-f</option></arg>
 
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      </group>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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      <group choice="req">
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        <arg choice="plain"><option>--password</option></arg>
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        <arg choice="plain"><option>-p</option></arg>
 
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        <arg choice="plain"><option>--passfile
 
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        <replaceable>FILE</replaceable></option></arg>
 
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        <arg choice="plain"><option>-F</option>
 
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        <replaceable>FILE</replaceable></arg>
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      </group>
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      <sbr/>
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      <group>
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        <arg choice="plain"><option>-n
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        <replaceable>NAME</replaceable></option></arg>
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      </group>
 
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      <group>
 
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        <arg choice="plain"><option>--no-ssh</option></arg>
 
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        <arg choice="plain"><option>-S</option></arg>
 
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      </group>
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    </cmdsynopsis>
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    <cmdsynopsis>
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      <command>&COMMANDNAME;</command>
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    <title>DESCRIPTION</title>
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    <para>
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      <command>&COMMANDNAME;</command> is a program to generate the
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      OpenPGP key used by
 
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      TLS and OpenPGP keys used by
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      <citerefentry><refentrytitle>mandos-client</refentrytitle>
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      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
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      normally written to /etc/mandos for later installation into the
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      initrd image, but this, and most other things, can be changed
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      with command line options.
 
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      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
 
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      normally written to /etc/keys/mandos for later installation into
 
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      the initrd image, but this, and most other things, can be
 
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      changed with command line options.
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    </para>
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    <para>
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      This program can also be used with the
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      <option>--password</option> option to generate a ready-made
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      section for <filename>clients.conf</filename> (see
 
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      <option>--password</option> or <option>--passfile</option>
 
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      options to generate a ready-made section for
 
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      <filename>clients.conf</filename> (see
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      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
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      <manvolnum>5</manvolnum></citerefentry>).
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    </para>
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        <replaceable>DIRECTORY</replaceable></option></term>
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        <listitem>
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          <para>
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            Target directory for key files.  Default is
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            <filename>/etc/mandos</filename>.
 
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            Target directory for key files.  Default is <filename
 
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            class="directory">/etc/keys/mandos</filename>.
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          </para>
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        </listitem>
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      </varlistentry>
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        <replaceable>TYPE</replaceable></option></term>
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        <listitem>
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          <para>
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            Key type.  Default is <quote>DSA</quote>.
 
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            OpenPGP key type.  Default is <quote>RSA</quote>.
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          </para>
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        </listitem>
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      </varlistentry>
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        <replaceable>BITS</replaceable></option></term>
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        <listitem>
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          <para>
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            Key length in bits.  Default is 2048.
 
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            OpenPGP key length in bits.  Default is 4096.
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          </para>
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        </listitem>
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      </varlistentry>
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        <replaceable>KEYTYPE</replaceable></option></term>
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        <listitem>
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          <para>
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            Subkey type.  Default is <quote>ELG-E</quote> (Elgamal
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            encryption-only).
 
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            OpenPGP subkey type.  Default is <quote>RSA</quote>
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          </para>
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        </listitem>
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      </varlistentry>
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        <replaceable>BITS</replaceable></option></term>
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        <listitem>
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          <para>
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            Subkey length in bits.  Default is 2048.
 
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            OpenPGP subkey length in bits.  Default is 4096.
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          </para>
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        </listitem>
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      </varlistentry>
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        <replaceable>TEXT</replaceable></option></term>
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        <listitem>
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          <para>
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            Comment field for key.  The default value is
283
 
            <quote><literal>Mandos client key</literal></quote>.
 
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            Comment field for key.  Default is empty.
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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><option>--tls-keytype
 
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        <replaceable>KEYTYPE</replaceable></option></term>
 
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        <term><option>-T
 
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        <replaceable>KEYTYPE</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            TLS key type.  Default is <quote>ed25519</quote>
 
339
          </para>
 
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        </listitem>
 
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      </varlistentry>
 
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      <varlistentry>
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        <term><option>--force</option></term>
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        <term><option>-f</option></term>
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        <listitem>
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        <listitem>
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          <para>
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            Prompt for a password and encrypt it with the key already
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            present in either <filename>/etc/mandos</filename> or the
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            directory specified with the <option>--dir</option>
 
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            present in either <filename>/etc/keys/mandos</filename> or
 
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            the directory specified with the <option>--dir</option>
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            option.  Outputs, on standard output, a section suitable
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            for inclusion in <citerefentry><refentrytitle
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            >mandos-clients.conf</refentrytitle><manvolnum
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            >8</manvolnum></citerefentry>.  The host name or the name
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            specified with the <option>--name</option> option is used
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            for the section header.  All other options are ignored,
325
 
            and no key is created.
 
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            and no key is created.  Note: white space is stripped from
 
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            the beginning and from the end of the password; See <xref
 
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            linkend="bugs"/>.
 
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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>--passfile
 
374
        <replaceable>FILE</replaceable></option></term>
 
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        <term><option>-F
 
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        <replaceable>FILE</replaceable></option></term>
 
377
        <listitem>
 
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          <para>
 
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            The same as <option>--password</option>, but read from
 
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            <replaceable>FILE</replaceable>, not the terminal, and
 
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            white space is not stripped from the password in any way.
 
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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>--no-ssh</option></term>
 
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        <term><option>-S</option></term>
 
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        <listitem>
 
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          <para>
 
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            When <option>--password</option> or
 
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            <option>--passfile</option> is given, this option will
 
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            prevent <command>&COMMANDNAME;</command> from calling
 
393
            <command>ssh-keyscan</command> to get an SSH fingerprint
 
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            for this host and, if successful, output suitable config
 
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            options to use this fingerprint as a
 
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            <option>checker</option> option in the output.  This is
 
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            otherwise the default behavior.
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          </para>
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        </listitem>
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      </varlistentry>
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    <title>OVERVIEW</title>
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    <xi:include href="overview.xml"/>
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    <para>
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      This program is a small utility to generate new OpenPGP keys for
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      new Mandos clients, and to generate sections for inclusion in
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      <filename>clients.conf</filename> on the server.
 
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      This program is a small utility to generate new TLS and OpenPGP
 
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      keys for new Mandos clients, and to generate sections for
 
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      inclusion in <filename>clients.conf</filename> on the server.
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    </para>
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  </refsect1>
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    </variablelist>
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  </refsect1>
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  <refsect1 id="file">
 
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  <refsect1 id="files">
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    <title>FILES</title>
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    <para>
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      Use the <option>--dir</option> option to change where
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    </para>
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    <variablelist>
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      <varlistentry>
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        <term><filename>/etc/mandos/seckey.txt</filename></term>
 
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        <term><filename>/etc/keys/mandos/seckey.txt</filename></term>
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        <listitem>
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          <para>
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            OpenPGP secret key file which will be created or
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        </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term><filename>/etc/mandos/pubkey.txt</filename></term>
 
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        <term><filename>/etc/keys/mandos/pubkey.txt</filename></term>
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        <listitem>
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          <para>
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            OpenPGP public key file which will be created or
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        </listitem>
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      </varlistentry>
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      <varlistentry>
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        <term><filename>/tmp</filename></term>
 
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        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
 
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        <listitem>
 
468
          <para>
 
469
            Private key file which will be created or overwritten.
 
470
          </para>
 
471
        </listitem>
 
472
      </varlistentry>
 
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      <varlistentry>
 
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        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
 
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        <listitem>
 
476
          <para>
 
477
            Public key file which will be created or overwritten.
 
478
          </para>
 
479
        </listitem>
 
480
      </varlistentry>
 
481
      <varlistentry>
 
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        <term><filename class="directory">/tmp</filename></term>
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        <listitem>
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          <para>
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            Temporary files will be written here if
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    </variablelist>
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  </refsect1>
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405
 
<!--   <refsect1 id="bugs"> -->
406
 
<!--     <title>BUGS</title> -->
407
 
<!--     <para> -->
408
 
<!--     </para> -->
409
 
<!--   </refsect1> -->
 
493
  <refsect1 id="bugs">
 
494
    <title>BUGS</title>
 
495
    <para>
 
496
      The <option>--password</option>/<option>-p</option> option
 
497
      strips white space from the start and from the end of the
 
498
      password before using it.  If this is a problem, use the
 
499
      <option>--passfile</option> option instead, which does not do
 
500
      this.
 
501
    </para>
 
502
    <xi:include href="bugs.xml"/>
 
503
  </refsect1>
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  <refsect1 id="example">
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    <title>EXAMPLE</title>
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    </informalexample>
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    <informalexample>
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      <para>
435
 
        Prompt for a password, encrypt it with the key in
436
 
        <filename>/etc/mandos</filename> and output a section suitable
437
 
        for <filename>clients.conf</filename>.
 
529
        Prompt for a password, encrypt it with the keys in <filename
 
530
        class="directory">/etc/keys/mandos</filename> and output a
 
531
        section suitable for <filename>clients.conf</filename>.
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      </para>
439
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      <para>
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        <userinput>&COMMANDNAME; --password</userinput>
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    </informalexample>
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    <informalexample>
444
538
      <para>
445
 
        Prompt for a password, encrypt it with the key in the
 
539
        Prompt for a password, encrypt it with the keys in the
446
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        <filename>client-key</filename> directory and output a section
447
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        suitable for <filename>clients.conf</filename>.
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      </para>
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  <refsect1 id="see_also">
474
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    <title>SEE ALSO</title>
475
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    <para>
 
570
      <citerefentry><refentrytitle>intro</refentrytitle>
 
571
      <manvolnum>8mandos</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>gpg</refentrytitle>
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      <manvolnum>1</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
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      <citerefentry><refentrytitle>mandos</refentrytitle>
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      <manvolnum>8</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>mandos-client</refentrytitle>
483
 
      <manvolnum>8mandos</manvolnum></citerefentry>
 
579
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
580
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
 
581
      <manvolnum>1</manvolnum></citerefentry>
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    </para>
485
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  </refsect1>
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