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  • Committer: Teddy Hogeborn
  • Date: 2023-02-07 23:03:33 UTC
  • Revision ID: teddy@recompile.se-20230207230333-5halrp7943pgb3w1
Server: Bug fix: Stagger checker runs when creating clients

* mandos (Client.enable()): Do not set self.expires here; move it to
  "init_checker".
  (Client.init_checker()): Take new "randomize_start" argument.  If
  True, randomize delay before starting checker.  Also, do not start
  checker right now, but instead extend expire time so that the
  scheduled checker always has time to run.
  (Checker.start_checker): Take new "start_was_randomized" argument.
  If True, reset scheduled checker runs to be 'interval' apart,
  instead of using the initial delay.  (Bug fix)
  (main): On startup, pass argument randomize_start=True to
  client.init_checker() when initizlizing checkers for all enabled
  clients.

Reported-by: Louis Charreau <Louis.Charreau@vadesecure.com>
Suggested-by: Louis Charreau <Louis.Charreau@vadesecure.com>
Fixes: 1200 ("Server: Stagger checker runs when creating clients")

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intro.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 TIMESTAMP "2019-04-10">
 
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<!ENTITY TIMESTAMP "2020-09-16">
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<!ENTITY % common SYSTEM "common.ent">
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%common;
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]>
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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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      <year>2020</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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      plugin requirements.
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    </para>
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  </refsect1>
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  <refsect1 id="systemd">
 
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    <title>SYSTEMD</title>
 
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    <para>
 
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      More advanced startup systems like <citerefentry><refentrytitle
 
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      >systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
 
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      already have their own plugin-like mechanisms for allowing
 
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      multiple agents to independently retrieve a password and deliver
 
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      it to the subsystem requesting a password to unlock the root
 
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      file system.  On these systems, it would make no sense to run
 
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      <citerefentry><refentrytitle>plugin-runner</refentrytitle
 
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      ><manvolnum>8mandos</manvolnum></citerefentry>, the plugins of
 
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      which would largely duplicate the work of (and conflict with)
 
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      the existing systems prompting for passwords.
 
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    </para>
 
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    <para>
 
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      As for <citerefentry><refentrytitle>systemd</refentrytitle
 
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      ><manvolnum>1</manvolnum></citerefentry> in particular, it has
 
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      its own <ulink
 
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      url="https://systemd.io/PASSWORD_AGENTS/">Password
 
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      Agents</ulink> system.  Mandos uses this via its
 
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      <citerefentry><refentrytitle>password-agent</refentrytitle
 
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      ><manvolnum>8mandos</manvolnum></citerefentry> program, which is
 
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      run instead of <citerefentry><refentrytitle
 
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      >plugin-runner</refentrytitle><manvolnum>8mandos</manvolnum
 
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      ></citerefentry> when <citerefentry><refentrytitle
 
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      >systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>
 
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      is used during system startup.
 
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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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    <xi:include href="bugs.xml"/>
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      <manvolnum>8</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>plugin-runner</refentrytitle>
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      <manvolnum>8mandos</manvolnum></citerefentry>,
 
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      <citerefentry><refentrytitle>password-agent</refentrytitle>
 
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      <manvolnum>8mandos</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>mandos-client</refentrytitle>
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      <manvolnum>8mandos</manvolnum></citerefentry>,
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      <citerefentry><refentrytitle>password-prompt</refentrytitle>