/mandos/trunk

To get this branch, use:
bzr branch http://bzr.recompile.se/loggerhead/mandos/trunk

« back to all changes in this revision

Viewing changes to plugin-runner.xml

  • Committer: teddy at recompile
  • Date: 2020-12-03 20:30:45 UTC
  • Revision ID: teddy@recompile.se-20201203203045-iqd6nq9y5nwalh1x
Minor fix of a test function

In dracut-module/password-agent, the test function
test_send_password_to_socket_EMSGSIZE() (which tests that the
send_password_to_socket() task function aborts properly when getting
EMSGSIZE when writing to the password socket), part of the test code
is supposed to find a message size which definitely does trigger
EMSGSIZE when send()ing to a socket.  Without a "break" in the proper
place, however, the size given is always exactly 1024 bytes too large.

This is very probably not a problem, since a too large message will
still be too large if it is increased by 1024 bytes, and send(2) in
practice checks the size before reading the buffer.  The biggest issue
would be if some version of send(2) would try to look at the last 1024
bytes of the message buffer before checking the message size; this
would then lead to a buffer over-read when running this test function.
(But even then there would be no security implications since the tests
are not run in the normal operation of the program.)

* dracut-module/password-agent.c
  (test_send_password_to_socket_EMSGSIZE): Break out early when ssret
  < 0 and errno == EMSGSIZE; don't allow loop to increase message_size
  again.

Show diffs side-by-side

added added

removed removed

Lines of Context:
2
2
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3
3
        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
4
<!ENTITY COMMANDNAME "plugin-runner">
5
 
<!ENTITY TIMESTAMP "2015-07-20">
 
5
<!ENTITY TIMESTAMP "2019-07-26">
6
6
<!ENTITY % common SYSTEM "common.ent">
7
7
%common;
8
8
]>
39
39
      <year>2013</year>
40
40
      <year>2014</year>
41
41
      <year>2015</year>
 
42
      <year>2016</year>
 
43
      <year>2017</year>
 
44
      <year>2018</year>
 
45
      <year>2019</year>
42
46
      <holder>Teddy Hogeborn</holder>
43
47
      <holder>Björn Påhlsson</holder>
44
48
    </copyright>
543
547
            </para>
544
548
          </listitem>
545
549
        </varlistentry>
 
550
        <varlistentry>
 
551
          <term><filename class="directory"
 
552
          >/lib/mandos/plugins.d</filename></term>
 
553
          <listitem>
 
554
            <para>
 
555
              The default plugin directory; can be changed by the
 
556
              <option>--plugin-dir</option> option.
 
557
            </para>
 
558
          </listitem>
 
559
        </varlistentry>
 
560
        <varlistentry>
 
561
          <term><filename class="directory"
 
562
          >/lib/mandos/plugin-helpers</filename></term>
 
563
          <listitem>
 
564
            <para>
 
565
              The default plugin helper directory; can be changed by
 
566
              the <option>--plugin-helper-dir</option> option.
 
567
            </para>
 
568
          </listitem>
 
569
        </varlistentry>
546
570
      </variablelist>
547
571
    </para>
548
572
  </refsect1>
553
577
      The <option>--config-file</option> option is ignored when
554
578
      specified from within a configuration file.
555
579
    </para>
 
580
    <xi:include href="bugs.xml"/>
556
581
  </refsect1>
557
582
  
558
583
  <refsect1 id="examples">
603
628
      <para>
604
629
        Read a different configuration file, run plugins from a
605
630
        different directory, specify an alternate plugin helper
606
 
        directory and add two options to the
 
631
        directory and add four options to the
607
632
        <citerefentry><refentrytitle >mandos-client</refentrytitle>
608
633
        <manvolnum>8mandos</manvolnum></citerefentry> plugin:
609
634
      </para>
610
635
      <para>
611
636
 
612
637
<!-- do not wrap this line -->
613
 
<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>
 
638
<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,&#x200b;--seckey=seckey.txt,&#x200b;--tls-pubkey=tls-pubkey.pem,&#x200b;--tls-privkey=tls-privkey.pem</userinput>
614
639
 
615
640
      </para>
616
641
    </informalexample>