/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 Hogeborn
  • Date: 2015-12-05 01:29:53 UTC
  • mto: This revision was merged to the branch mainline in revision 794.
  • Revision ID: teddy@recompile.se-20151205012953-oi5hosp5yqhrmudh
Tags: version-1.7.1-2
* debian/changelog (1.7.1-2): New entry.

Show diffs side-by-side

added added

removed removed

Lines of Context:
1
1
<?xml version="1.0" encoding="UTF-8"?>
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
 
<!ENTITY VERSION "1.0">
5
4
<!ENTITY COMMANDNAME "plugin-runner">
6
 
<!ENTITY TIMESTAMP "2008-09-02">
 
5
<!ENTITY TIMESTAMP "2015-07-20">
 
6
<!ENTITY % common SYSTEM "common.ent">
 
7
%common;
7
8
]>
8
9
 
9
10
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
11
12
    <title>Mandos Manual</title>
12
13
    <!-- Nwalsh’s docbook scripts use this to generate the footer: -->
13
14
    <productname>Mandos</productname>
14
 
    <productnumber>&VERSION;</productnumber>
 
15
    <productnumber>&version;</productnumber>
15
16
    <date>&TIMESTAMP;</date>
16
17
    <authorgroup>
17
18
      <author>
18
19
        <firstname>Björn</firstname>
19
20
        <surname>Påhlsson</surname>
20
21
        <address>
21
 
          <email>belorn@fukt.bsnet.se</email>
 
22
          <email>belorn@recompile.se</email>
22
23
        </address>
23
24
      </author>
24
25
      <author>
25
26
        <firstname>Teddy</firstname>
26
27
        <surname>Hogeborn</surname>
27
28
        <address>
28
 
          <email>teddy@fukt.bsnet.se</email>
 
29
          <email>teddy@recompile.se</email>
29
30
        </address>
30
31
      </author>
31
32
    </authorgroup>
32
33
    <copyright>
33
34
      <year>2008</year>
 
35
      <year>2009</year>
 
36
      <year>2010</year>
 
37
      <year>2011</year>
 
38
      <year>2012</year>
 
39
      <year>2013</year>
 
40
      <year>2014</year>
 
41
      <year>2015</year>
34
42
      <holder>Teddy Hogeborn</holder>
35
43
      <holder>Björn Påhlsson</holder>
36
44
    </copyright>
37
45
    <xi:include href="legalnotice.xml"/>
38
46
  </refentryinfo>
39
 
 
 
47
  
40
48
  <refmeta>
41
49
    <refentrytitle>&COMMANDNAME;</refentrytitle>
42
50
    <manvolnum>8mandos</manvolnum>
45
53
  <refnamediv>
46
54
    <refname><command>&COMMANDNAME;</command></refname>
47
55
    <refpurpose>
48
 
      Run Mandos plugins.  Pass data from first succesful one.
 
56
      Run Mandos plugins, pass data from first to succeed.
49
57
    </refpurpose>
50
58
  </refnamediv>
51
 
 
 
59
  
52
60
  <refsynopsisdiv>
53
61
    <cmdsynopsis>
54
62
      <command>&COMMANDNAME;</command>
55
63
      <group rep="repeat">
56
64
        <arg choice="plain"><option>--global-env=<replaceable
57
 
        >VAR</replaceable><literal>=</literal><replaceable
 
65
        >ENV</replaceable><literal>=</literal><replaceable
58
66
        >value</replaceable></option></arg>
59
67
        <arg choice="plain"><option>-G
60
 
        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
68
        <replaceable>ENV</replaceable><literal>=</literal><replaceable
61
69
        >value</replaceable> </option></arg>
62
70
      </group>
63
71
      <sbr/>
111
119
      <arg><option>--plugin-dir=<replaceable
112
120
      >DIRECTORY</replaceable></option></arg>
113
121
      <sbr/>
 
122
      <arg><option>--plugin-helper-dir=<replaceable
 
123
      >DIRECTORY</replaceable></option></arg>
 
124
      <sbr/>
114
125
      <arg><option>--config-file=<replaceable
115
126
      >FILE</replaceable></option></arg>
116
127
      <sbr/>
140
151
    <title>DESCRIPTION</title>
141
152
    <para>
142
153
      <command>&COMMANDNAME;</command> is a program which is meant to
143
 
      be specified as <quote>keyscript</quote> in <citerefentry>
144
 
      <refentrytitle>crypttab</refentrytitle>
145
 
      <manvolnum>5</manvolnum></citerefentry> for the root disk.  The
146
 
      aim of this program is therefore to output a password, which
147
 
      then <citerefentry><refentrytitle>cryptsetup</refentrytitle>
 
154
      be specified as a <quote>keyscript</quote> for the root disk in
 
155
      <citerefentry><refentrytitle>crypttab</refentrytitle>
 
156
      <manvolnum>5</manvolnum></citerefentry>.  The aim of this
 
157
      program is therefore to output a password, which then
 
158
      <citerefentry><refentrytitle>cryptsetup</refentrytitle>
148
159
      <manvolnum>8</manvolnum></citerefentry> will use to unlock the
149
160
      root disk.
150
161
    </para>
170
181
    <variablelist>
171
182
      <varlistentry>
172
183
        <term><option>--global-env
173
 
        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
184
        <replaceable>ENV</replaceable><literal>=</literal><replaceable
174
185
        >value</replaceable></option></term>
175
186
        <term><option>-G
176
 
        <replaceable>VAR</replaceable><literal>=</literal><replaceable
 
187
        <replaceable>ENV</replaceable><literal>=</literal><replaceable
177
188
        >value</replaceable></option></term>
178
189
        <listitem>
179
190
          <para>
247
258
          </para>
248
259
        </listitem>
249
260
      </varlistentry>
250
 
 
 
261
      
251
262
      <varlistentry>
252
263
        <term><option>--disable
253
264
        <replaceable>PLUGIN</replaceable></option></term>
258
269
            Disable the plugin named
259
270
            <replaceable>PLUGIN</replaceable>.  The plugin will not be
260
271
            started.
261
 
          </para>       
 
272
          </para>
262
273
        </listitem>
263
274
      </varlistentry>
264
 
 
 
275
      
265
276
      <varlistentry>
266
277
        <term><option>--enable
267
278
        <replaceable>PLUGIN</replaceable></option></term>
272
283
            Re-enable the plugin named
273
284
            <replaceable>PLUGIN</replaceable>.  This is only useful to
274
285
            undo a previous <option>--disable</option> option, maybe
275
 
            from the config file.
 
286
            from the configuration file.
276
287
          </para>
277
288
        </listitem>
278
289
      </varlistentry>
279
 
 
 
290
      
280
291
      <varlistentry>
281
292
        <term><option>--groupid
282
293
        <replaceable>ID</replaceable></option></term>
289
300
          </para>
290
301
        </listitem>
291
302
      </varlistentry>
292
 
 
 
303
      
293
304
      <varlistentry>
294
305
        <term><option>--userid
295
306
        <replaceable>ID</replaceable></option></term>
302
313
          </para>
303
314
        </listitem>
304
315
      </varlistentry>
305
 
 
 
316
      
306
317
      <varlistentry>
307
318
        <term><option>--plugin-dir
308
319
        <replaceable>DIRECTORY</replaceable></option></term>
317
328
      </varlistentry>
318
329
      
319
330
      <varlistentry>
 
331
        <term><option>--plugin-helper-dir
 
332
        <replaceable>DIRECTORY</replaceable></option></term>
 
333
        <listitem>
 
334
          <para>
 
335
            Specify a different plugin helper directory.  The default
 
336
            is <filename>/lib/mandos/plugin-helpers</filename>, which
 
337
            will exist in the initial <acronym>RAM</acronym> disk
 
338
            environment.  (This will simply be passed to all plugins
 
339
            via the <envar>MANDOSPLUGINHELPERDIR</envar> environment
 
340
            variable.  See <xref linkend="writing_plugins"/>)
 
341
          </para>
 
342
        </listitem>
 
343
      </varlistentry>
 
344
      
 
345
      <varlistentry>
320
346
        <term><option>--config-file
321
347
        <replaceable>FILE</replaceable></option></term>
322
348
        <listitem>
365
391
          </para>
366
392
        </listitem>
367
393
      </varlistentry>
368
 
 
 
394
      
369
395
      <varlistentry>
370
396
        <term><option>--version</option></term>
371
397
        <term><option>-V</option></term>
377
403
      </varlistentry>
378
404
    </variablelist>
379
405
  </refsect1>
380
 
 
 
406
  
381
407
  <refsect1 id="overview">
382
408
    <title>OVERVIEW</title>
383
409
    <xi:include href="overview.xml"/>
403
429
      code will make this plugin-runner output the password from that
404
430
      plugin, stop any other plugins, and exit.
405
431
    </para>
406
 
 
 
432
    
407
433
    <refsect2 id="writing_plugins">
408
434
      <title>WRITING PLUGINS</title>
409
435
      <para>
416
442
        console.
417
443
      </para>
418
444
      <para>
 
445
        If the password is a single-line, manually entered passprase,
 
446
        a final trailing newline character should
 
447
        <emphasis>not</emphasis> be printed.
 
448
      </para>
 
449
      <para>
419
450
        The plugin will run in the initial RAM disk environment, so
420
451
        care must be taken not to depend on any files or running
421
 
        services not available there.
 
452
        services not available there.  Any helper executables required
 
453
        by the plugin (which are not in the <envar>PATH</envar>) can
 
454
        be placed in the plugin helper directory, the name of which
 
455
        will be made available to the plugin via the
 
456
        <envar>MANDOSPLUGINHELPERDIR</envar> environment variable.
422
457
      </para>
423
458
      <para>
424
459
        The plugin must exit cleanly and free all allocated resources
428
463
      </para>
429
464
      <para>
430
465
        The plugin must not use resources, like for instance reading
431
 
        from the standard input, without knowing that no other plugins
432
 
        are also using it.
 
466
        from the standard input, without knowing that no other plugin
 
467
        is also using it.
433
468
      </para>
434
469
      <para>
435
470
        It is useful, but not required, for the plugin to take the
467
502
      only passes on its environment to all the plugins.  The
468
503
      environment passed to plugins can be modified using the
469
504
      <option>--global-env</option> and <option>--env-for</option>
470
 
      optins.
 
505
      options.  Also, the <option>--plugin-helper-dir</option> option
 
506
      will affect the environment variable
 
507
      <envar>MANDOSPLUGINHELPERDIR</envar> for the plugins.
471
508
    </para>
472
509
  </refsect1>
473
510
  
510
547
    </para>
511
548
  </refsect1>
512
549
  
513
 
<!--   <refsect1 id="bugs"> -->
514
 
<!--     <title>BUGS</title> -->
515
 
<!--     <para> -->
516
 
<!--     </para> -->
517
 
<!--   </refsect1> -->
 
550
  <refsect1 id="bugs">
 
551
    <title>BUGS</title>
 
552
    <para>
 
553
      The <option>--config-file</option> option is ignored when
 
554
      specified from within a configuration file.
 
555
    </para>
 
556
  </refsect1>
518
557
  
519
558
  <refsect1 id="examples">
520
559
    <title>EXAMPLE</title>
562
601
    </informalexample>
563
602
    <informalexample>
564
603
      <para>
565
 
        Run plugins from a different directory and add a special
566
 
        option to the <citerefentry><refentrytitle
567
 
        >password-request</refentrytitle>
 
604
        Read a different configuration file, run plugins from a
 
605
        different directory, specify an alternate plugin helper
 
606
        directory and add two options to the
 
607
        <citerefentry><refentrytitle >mandos-client</refentrytitle>
568
608
        <manvolnum>8mandos</manvolnum></citerefentry> plugin:
569
609
      </para>
570
610
      <para>
571
611
 
572
612
<!-- do not wrap this line -->
573
 
<userinput>&COMMANDNAME;  --plugin-dir=plugins.d --options-for=password-request:--keydir=keydir</userinput>
 
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>
574
614
 
575
615
      </para>
576
616
    </informalexample>
584
624
      non-privileged.  This user and group is then what all plugins
585
625
      will be started as.  Therefore, the only way to run a plugin as
586
626
      a privileged user is to have the set-user-ID or set-group-ID bit
587
 
      set on the plugin executable files (see <citerefentry>
 
627
      set on the plugin executable file (see <citerefentry>
588
628
      <refentrytitle>execve</refentrytitle><manvolnum>2</manvolnum>
589
629
      </citerefentry>).
590
630
    </para>
591
631
    <para>
592
632
      If this program is used as a keyscript in <citerefentry
593
633
      ><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
 
634
      </citerefentry>, there is a slight risk that if this program
 
635
      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
597
637
      image to not run this program.  This is, however, unlikely,
598
638
      since the <citerefentry><refentrytitle
599
639
      >password-prompt</refentrytitle><manvolnum>8mandos</manvolnum>
608
648
  <refsect1 id="see_also">
609
649
    <title>SEE ALSO</title>
610
650
    <para>
 
651
      <citerefentry><refentrytitle>intro</refentrytitle>
 
652
      <manvolnum>8mandos</manvolnum></citerefentry>,
611
653
      <citerefentry><refentrytitle>cryptsetup</refentrytitle>
612
654
      <manvolnum>8</manvolnum></citerefentry>,
613
655
      <citerefentry><refentrytitle>crypttab</refentrytitle>
618
660
      <manvolnum>8</manvolnum></citerefentry>,
619
661
      <citerefentry><refentrytitle>password-prompt</refentrytitle>
620
662
      <manvolnum>8mandos</manvolnum></citerefentry>,
621
 
      <citerefentry><refentrytitle>password-request</refentrytitle>
 
663
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
622
664
      <manvolnum>8mandos</manvolnum></citerefentry>
623
665
    </para>
624
666
  </refsect1>