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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.

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Lines of Context:
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"
3
 
        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4
 
<!ENTITY COMMANDNAME "mandos-keygen">
5
 
<!ENTITY TIMESTAMP "2011-10-03">
6
 
<!ENTITY % common SYSTEM "common.ent">
7
 
%common;
8
 
]>
9
 
 
10
 
<refentry xmlns:xi="http://www.w3.org/2001/XInclude">
11
 
  <refentryinfo>
12
 
    <title>Mandos Manual</title>
13
 
    <!-- NWalsh’s docbook scripts use this to generate the footer: -->
14
 
    <productname>Mandos</productname>
15
 
    <productnumber>&version;</productnumber>
16
 
    <date>&TIMESTAMP;</date>
17
 
    <authorgroup>
18
 
      <author>
19
 
        <firstname>Björn</firstname>
20
 
        <surname>Påhlsson</surname>
21
 
        <address>
22
 
          <email>belorn@recompile.se</email>
23
 
        </address>
24
 
      </author>
25
 
      <author>
26
 
        <firstname>Teddy</firstname>
27
 
        <surname>Hogeborn</surname>
28
 
        <address>
29
 
          <email>teddy@recompile.se</email>
30
 
        </address>
31
 
      </author>
32
 
    </authorgroup>
33
 
    <copyright>
34
 
      <year>2008</year>
35
 
      <year>2009</year>
36
 
      <year>2011</year>
37
 
      <holder>Teddy Hogeborn</holder>
38
 
      <holder>Björn Påhlsson</holder>
39
 
    </copyright>
40
 
    <xi:include href="legalnotice.xml"/>
41
 
  </refentryinfo>
42
 
  
43
 
  <refmeta>
44
 
    <refentrytitle>&COMMANDNAME;</refentrytitle>
45
 
    <manvolnum>8</manvolnum>
46
 
  </refmeta>
47
 
  
48
 
  <refnamediv>
49
 
    <refname><command>&COMMANDNAME;</command></refname>
50
 
    <refpurpose>
51
 
      Generate key and password for Mandos client and server.
52
 
    </refpurpose>
53
 
  </refnamediv>
54
 
  
55
 
  <refsynopsisdiv>
56
 
    <cmdsynopsis>
57
 
      <command>&COMMANDNAME;</command>
58
 
      <group>
59
 
        <arg choice="plain"><option>--dir
60
 
        <replaceable>DIRECTORY</replaceable></option></arg>
61
 
        <arg choice="plain"><option>-d
62
 
        <replaceable>DIRECTORY</replaceable></option></arg>
63
 
      </group>
64
 
      <sbr/>
65
 
      <group>
66
 
        <arg choice="plain"><option>--type
67
 
        <replaceable>KEYTYPE</replaceable></option></arg>
68
 
        <arg choice="plain"><option>-t
69
 
        <replaceable>KEYTYPE</replaceable></option></arg>
70
 
      </group>
71
 
      <sbr/>
72
 
      <group>
73
 
        <arg choice="plain"><option>--length
74
 
        <replaceable>BITS</replaceable></option></arg>
75
 
        <arg choice="plain"><option>-l
76
 
        <replaceable>BITS</replaceable></option></arg>
77
 
      </group>
78
 
      <sbr/>
79
 
      <group>
80
 
        <arg choice="plain"><option>--subtype
81
 
        <replaceable>KEYTYPE</replaceable></option></arg>
82
 
        <arg choice="plain"><option>-s
83
 
        <replaceable>KEYTYPE</replaceable></option></arg>
84
 
      </group>
85
 
      <sbr/>
86
 
      <group>
87
 
        <arg choice="plain"><option>--sublength
88
 
        <replaceable>BITS</replaceable></option></arg>
89
 
        <arg choice="plain"><option>-L
90
 
        <replaceable>BITS</replaceable></option></arg>
91
 
      </group>
92
 
      <sbr/>
93
 
      <group>
94
 
        <arg choice="plain"><option>--name
95
 
        <replaceable>NAME</replaceable></option></arg>
96
 
        <arg choice="plain"><option>-n
97
 
        <replaceable>NAME</replaceable></option></arg>
98
 
      </group>
99
 
      <sbr/>
100
 
      <group>
101
 
        <arg choice="plain"><option>--email
102
 
        <replaceable>ADDRESS</replaceable></option></arg>
103
 
        <arg choice="plain"><option>-e
104
 
        <replaceable>ADDRESS</replaceable></option></arg>
105
 
      </group>
106
 
      <sbr/>
107
 
      <group>
108
 
        <arg choice="plain"><option>--comment
109
 
        <replaceable>TEXT</replaceable></option></arg>
110
 
        <arg choice="plain"><option>-c
111
 
        <replaceable>TEXT</replaceable></option></arg>
112
 
      </group>
113
 
      <sbr/>
114
 
      <group>
115
 
        <arg choice="plain"><option>--expire
116
 
        <replaceable>TIME</replaceable></option></arg>
117
 
        <arg choice="plain"><option>-x
118
 
        <replaceable>TIME</replaceable></option></arg>
119
 
      </group>
120
 
      <sbr/>
121
 
      <arg><option>--force</option></arg>
122
 
    </cmdsynopsis>
123
 
    <cmdsynopsis>
124
 
      <command>&COMMANDNAME;</command>
125
 
      <group choice="req">
126
 
        <arg choice="plain"><option>--password</option></arg>
127
 
        <arg choice="plain"><option>-p</option></arg>
128
 
        <arg choice="plain"><option>--passfile
129
 
        <replaceable>FILE</replaceable></option></arg>
130
 
        <arg choice="plain"><option>-F</option>
131
 
        <replaceable>FILE</replaceable></arg>
132
 
      </group>
133
 
      <sbr/>
134
 
      <group>
135
 
        <arg choice="plain"><option>--dir
136
 
        <replaceable>DIRECTORY</replaceable></option></arg>
137
 
        <arg choice="plain"><option>-d
138
 
        <replaceable>DIRECTORY</replaceable></option></arg>
139
 
      </group>
140
 
      <sbr/>
141
 
      <group>
142
 
        <arg choice="plain"><option>--name
143
 
        <replaceable>NAME</replaceable></option></arg>
144
 
        <arg choice="plain"><option>-n
145
 
        <replaceable>NAME</replaceable></option></arg>
146
 
      </group>
147
 
    </cmdsynopsis>
148
 
    <cmdsynopsis>
149
 
      <command>&COMMANDNAME;</command>
150
 
      <group choice="req">
151
 
        <arg choice="plain"><option>--help</option></arg>
152
 
        <arg choice="plain"><option>-h</option></arg>
153
 
      </group>
154
 
    </cmdsynopsis>
155
 
    <cmdsynopsis>
156
 
      <command>&COMMANDNAME;</command>
157
 
      <group choice="req">
158
 
        <arg choice="plain"><option>--version</option></arg>
159
 
        <arg choice="plain"><option>-v</option></arg>
160
 
      </group>
161
 
    </cmdsynopsis>
162
 
  </refsynopsisdiv>
163
 
  
164
 
  <refsect1 id="description">
165
 
    <title>DESCRIPTION</title>
166
 
    <para>
167
 
      <command>&COMMANDNAME;</command> is a program to generate the
168
 
      OpenPGP key used by
169
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
170
 
      <manvolnum>8mandos</manvolnum></citerefentry>.  The key is
171
 
      normally written to /etc/mandos for later installation into the
172
 
      initrd image, but this, and most other things, can be changed
173
 
      with command line options.
174
 
    </para>
175
 
    <para>
176
 
      This program can also be used with the
177
 
      <option>--password</option> or <option>--passfile</option>
178
 
      options to generate a ready-made section for
179
 
      <filename>clients.conf</filename> (see
180
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
181
 
      <manvolnum>5</manvolnum></citerefentry>).
182
 
    </para>
183
 
  </refsect1>
184
 
  
185
 
  <refsect1 id="purpose">
186
 
    <title>PURPOSE</title>
187
 
    <para>
188
 
      The purpose of this is to enable <emphasis>remote and unattended
189
 
      rebooting</emphasis> of client host computer with an
190
 
      <emphasis>encrypted root file system</emphasis>.  See <xref
191
 
      linkend="overview"/> for details.
192
 
    </para>
193
 
  </refsect1>
194
 
  
195
 
  <refsect1 id="options">
196
 
    <title>OPTIONS</title>
197
 
    
198
 
    <variablelist>
199
 
      <varlistentry>
200
 
        <term><option>--help</option></term>
201
 
        <term><option>-h</option></term>
202
 
        <listitem>
203
 
          <para>
204
 
            Show a help message and exit
205
 
          </para>
206
 
        </listitem>
207
 
      </varlistentry>
208
 
      
209
 
      <varlistentry>
210
 
        <term><option>--dir
211
 
        <replaceable>DIRECTORY</replaceable></option></term>
212
 
        <term><option>-d
213
 
        <replaceable>DIRECTORY</replaceable></option></term>
214
 
        <listitem>
215
 
          <para>
216
 
            Target directory for key files.  Default is
217
 
            <filename>/etc/mandos</filename>.
218
 
          </para>
219
 
        </listitem>
220
 
      </varlistentry>
221
 
      
222
 
      <varlistentry>
223
 
        <term><option>--type
224
 
        <replaceable>TYPE</replaceable></option></term>
225
 
        <term><option>-t
226
 
        <replaceable>TYPE</replaceable></option></term>
227
 
        <listitem>
228
 
          <para>
229
 
            Key type.  Default is <quote>DSA</quote>.
230
 
          </para>
231
 
        </listitem>
232
 
      </varlistentry>
233
 
      
234
 
      <varlistentry>
235
 
        <term><option>--length
236
 
        <replaceable>BITS</replaceable></option></term>
237
 
        <term><option>-l
238
 
        <replaceable>BITS</replaceable></option></term>
239
 
        <listitem>
240
 
          <para>
241
 
            Key length in bits.  Default is 2048.
242
 
          </para>
243
 
        </listitem>
244
 
      </varlistentry>
245
 
      
246
 
      <varlistentry>
247
 
        <term><option>--subtype
248
 
        <replaceable>KEYTYPE</replaceable></option></term>
249
 
        <term><option>-s
250
 
        <replaceable>KEYTYPE</replaceable></option></term>
251
 
        <listitem>
252
 
          <para>
253
 
            Subkey type.  Default is <quote>ELG-E</quote> (Elgamal
254
 
            encryption-only).
255
 
          </para>
256
 
        </listitem>
257
 
      </varlistentry>
258
 
      
259
 
      <varlistentry>
260
 
        <term><option>--sublength
261
 
        <replaceable>BITS</replaceable></option></term>
262
 
        <term><option>-L
263
 
        <replaceable>BITS</replaceable></option></term>
264
 
        <listitem>
265
 
          <para>
266
 
            Subkey length in bits.  Default is 2048.
267
 
          </para>
268
 
        </listitem>
269
 
      </varlistentry>
270
 
      
271
 
      <varlistentry>
272
 
        <term><option>--email
273
 
        <replaceable>ADDRESS</replaceable></option></term>
274
 
        <term><option>-e
275
 
        <replaceable>ADDRESS</replaceable></option></term>
276
 
        <listitem>
277
 
          <para>
278
 
            Email address of key.  Default is empty.
279
 
          </para>
280
 
        </listitem>
281
 
      </varlistentry>
282
 
      
283
 
      <varlistentry>
284
 
        <term><option>--comment
285
 
        <replaceable>TEXT</replaceable></option></term>
286
 
        <term><option>-c
287
 
        <replaceable>TEXT</replaceable></option></term>
288
 
        <listitem>
289
 
          <para>
290
 
            Comment field for key.  The default value is
291
 
            <quote><literal>Mandos client key</literal></quote>.
292
 
          </para>
293
 
        </listitem>
294
 
      </varlistentry>
295
 
      
296
 
      <varlistentry>
297
 
        <term><option>--expire
298
 
        <replaceable>TIME</replaceable></option></term>
299
 
        <term><option>-x
300
 
        <replaceable>TIME</replaceable></option></term>
301
 
        <listitem>
302
 
          <para>
303
 
            Key expire time.  Default is no expiration.  See
304
 
            <citerefentry><refentrytitle>gpg</refentrytitle>
305
 
            <manvolnum>1</manvolnum></citerefentry> for syntax.
306
 
          </para>
307
 
        </listitem>
308
 
      </varlistentry>
309
 
      
310
 
      <varlistentry>
311
 
        <term><option>--force</option></term>
312
 
        <term><option>-f</option></term>
313
 
        <listitem>
314
 
          <para>
315
 
            Force overwriting old key.
316
 
          </para>
317
 
        </listitem>
318
 
      </varlistentry>
319
 
      <varlistentry>
320
 
        <term><option>--password</option></term>
321
 
        <term><option>-p</option></term>
322
 
        <listitem>
323
 
          <para>
324
 
            Prompt for a password and encrypt it with the key already
325
 
            present in either <filename>/etc/mandos</filename> or the
326
 
            directory specified with the <option>--dir</option>
327
 
            option.  Outputs, on standard output, a section suitable
328
 
            for inclusion in <citerefentry><refentrytitle
329
 
            >mandos-clients.conf</refentrytitle><manvolnum
330
 
            >8</manvolnum></citerefentry>.  The host name or the name
331
 
            specified with the <option>--name</option> option is used
332
 
            for the section header.  All other options are ignored,
333
 
            and no key is created.
334
 
          </para>
335
 
        </listitem>
336
 
      </varlistentry>
337
 
      <varlistentry>
338
 
        <term><option>--passfile
339
 
        <replaceable>FILE</replaceable></option></term>
340
 
        <term><option>-F
341
 
        <replaceable>FILE</replaceable></option></term>
342
 
        <listitem>
343
 
          <para>
344
 
            The same as <option>--password</option>, but read from
345
 
            <replaceable>FILE</replaceable>, not the terminal.
346
 
          </para>
347
 
        </listitem>
348
 
      </varlistentry>
349
 
    </variablelist>
350
 
  </refsect1>
351
 
  
352
 
  <refsect1 id="overview">
353
 
    <title>OVERVIEW</title>
354
 
    <xi:include href="overview.xml"/>
355
 
    <para>
356
 
      This program is a small utility to generate new OpenPGP keys for
357
 
      new Mandos clients, and to generate sections for inclusion in
358
 
      <filename>clients.conf</filename> on the server.
359
 
    </para>
360
 
  </refsect1>
361
 
  
362
 
  <refsect1 id="exit_status">
363
 
    <title>EXIT STATUS</title>
364
 
    <para>
365
 
      The exit status will be 0 if a new key (or password, if the
366
 
      <option>--password</option> option was used) was successfully
367
 
      created, otherwise not.
368
 
    </para>
369
 
  </refsect1>
370
 
  
371
 
  <refsect1 id="environment">
372
 
    <title>ENVIRONMENT</title>
373
 
    <variablelist>
374
 
      <varlistentry>
375
 
        <term><envar>TMPDIR</envar></term>
376
 
        <listitem>
377
 
          <para>
378
 
            If set, temporary files will be created here. See
379
 
            <citerefentry><refentrytitle>mktemp</refentrytitle>
380
 
            <manvolnum>1</manvolnum></citerefentry>.
381
 
          </para>
382
 
        </listitem>
383
 
      </varlistentry>
384
 
    </variablelist>
385
 
  </refsect1>
386
 
  
387
 
  <refsect1 id="files">
388
 
    <title>FILES</title>
389
 
    <para>
390
 
      Use the <option>--dir</option> option to change where
391
 
      <command>&COMMANDNAME;</command> will write the key files.  The
392
 
      default file names are shown here.
393
 
    </para>
394
 
    <variablelist>
395
 
      <varlistentry>
396
 
        <term><filename>/etc/mandos/seckey.txt</filename></term>
397
 
        <listitem>
398
 
          <para>
399
 
            OpenPGP secret key file which will be created or
400
 
            overwritten.
401
 
          </para>
402
 
        </listitem>
403
 
      </varlistentry>
404
 
      <varlistentry>
405
 
        <term><filename>/etc/mandos/pubkey.txt</filename></term>
406
 
        <listitem>
407
 
          <para>
408
 
            OpenPGP public key file which will be created or
409
 
            overwritten.
410
 
          </para>
411
 
        </listitem>
412
 
      </varlistentry>
413
 
      <varlistentry>
414
 
        <term><filename>/tmp</filename></term>
415
 
        <listitem>
416
 
          <para>
417
 
            Temporary files will be written here if
418
 
            <varname>TMPDIR</varname> is not set.
419
 
          </para>
420
 
        </listitem>
421
 
      </varlistentry>
422
 
    </variablelist>
423
 
  </refsect1>
424
 
  
425
 
<!--   <refsect1 id="bugs"> -->
426
 
<!--     <title>BUGS</title> -->
427
 
<!--     <para> -->
428
 
<!--     </para> -->
429
 
<!--   </refsect1> -->
430
 
  
431
 
  <refsect1 id="example">
432
 
    <title>EXAMPLE</title>
433
 
    <informalexample>
434
 
      <para>
435
 
        Normal invocation needs no options:
436
 
      </para>
437
 
      <para>
438
 
        <userinput>&COMMANDNAME;</userinput>
439
 
      </para>
440
 
    </informalexample>
441
 
    <informalexample>
442
 
      <para>
443
 
        Create key in another directory and of another type.  Force
444
 
        overwriting old key files:
445
 
      </para>
446
 
      <para>
447
 
 
448
 
<!-- do not wrap this line -->
449
 
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
450
 
 
451
 
      </para>
452
 
    </informalexample>
453
 
    <informalexample>
454
 
      <para>
455
 
        Prompt for a password, encrypt it with the key in
456
 
        <filename>/etc/mandos</filename> and output a section suitable
457
 
        for <filename>clients.conf</filename>.
458
 
      </para>
459
 
      <para>
460
 
        <userinput>&COMMANDNAME; --password</userinput>
461
 
      </para>
462
 
    </informalexample>
463
 
    <informalexample>
464
 
      <para>
465
 
        Prompt for a password, encrypt it with the key in the
466
 
        <filename>client-key</filename> directory and output a section
467
 
        suitable for <filename>clients.conf</filename>.
468
 
      </para>
469
 
      <para>
470
 
 
471
 
<!-- do not wrap this line -->
472
 
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
473
 
 
474
 
      </para>
475
 
    </informalexample>
476
 
  </refsect1>
477
 
  
478
 
  <refsect1 id="security">
479
 
    <title>SECURITY</title>
480
 
    <para>
481
 
      The <option>--type</option>, <option>--length</option>,
482
 
      <option>--subtype</option>, and <option>--sublength</option>
483
 
      options can be used to create keys of low security.  If in
484
 
      doubt, leave them to the default values.
485
 
    </para>
486
 
    <para>
487
 
      The key expire time is <emphasis>not</emphasis> guaranteed to be
488
 
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
489
 
      <manvolnum>8</manvolnum></citerefentry>.
490
 
    </para>
491
 
  </refsect1>
492
 
  
493
 
  <refsect1 id="see_also">
494
 
    <title>SEE ALSO</title>
495
 
    <para>
496
 
      <citerefentry><refentrytitle>intro</refentrytitle>
497
 
      <manvolnum>8mandos</manvolnum></citerefentry>,
498
 
      <citerefentry><refentrytitle>gpg</refentrytitle>
499
 
      <manvolnum>1</manvolnum></citerefentry>,
500
 
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
501
 
      <manvolnum>5</manvolnum></citerefentry>,
502
 
      <citerefentry><refentrytitle>mandos</refentrytitle>
503
 
      <manvolnum>8</manvolnum></citerefentry>,
504
 
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
505
 
      <manvolnum>8mandos</manvolnum></citerefentry>
506
 
    </para>
507
 
  </refsect1>
508
 
  
509
 
</refentry>
510
 
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