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  • Committer: Teddy Hogeborn
  • Date: 2019-07-14 22:39:15 UTC
  • mto: This revision was merged to the branch mainline in revision 384.
  • Revision ID: teddy@recompile.se-20190714223915-aqjkms3t3taa6tye
Only use sanitizing options when debugging

The C compiler's sanitizing options introduce code in the output
binary which is fragile and not very security conscious.  It has
become clear that sanitizing is only really meant for use while
debugging.

As a side effect, this makes compilation faster, as the Makefile, for
production builds, no longer runs the compiler repeatedly to find all
its currently supported sanitizing options.

* Makefile (DEBUG): Add "$(SANITIZE)".
  (SANITIZE): Comment out.
  (CFLAGS): Remove "$(SANITIZE)".
  (plugins.d/mandos-client): Revert back to use plain $(LINK.c), since
                             we no longer need to remove the leak
                             sanitizer by overriding CFLAGS.

Show diffs side-by-side

added added

removed removed

Lines of Context:
mandos-keygen.xml
 
1
<?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 "2019-02-10">
 
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>2010</year>
 
37
      <year>2011</year>
 
38
      <year>2012</year>
 
39
      <year>2013</year>
 
40
      <year>2014</year>
 
41
      <year>2015</year>
 
42
      <year>2016</year>
 
43
      <year>2017</year>
 
44
      <year>2018</year>
 
45
      <year>2019</year>
 
46
      <holder>Teddy Hogeborn</holder>
 
47
      <holder>Björn Påhlsson</holder>
 
48
    </copyright>
 
49
    <xi:include href="legalnotice.xml"/>
 
50
  </refentryinfo>
 
51
  
 
52
  <refmeta>
 
53
    <refentrytitle>&COMMANDNAME;</refentrytitle>
 
54
    <manvolnum>8</manvolnum>
 
55
  </refmeta>
 
56
  
 
57
  <refnamediv>
 
58
    <refname><command>&COMMANDNAME;</command></refname>
 
59
    <refpurpose>
 
60
      Generate key and password for Mandos client and server.
 
61
    </refpurpose>
 
62
  </refnamediv>
 
63
  
 
64
  <refsynopsisdiv>
 
65
    <cmdsynopsis>
 
66
      <command>&COMMANDNAME;</command>
 
67
      <group>
 
68
        <arg choice="plain"><option>--dir
 
69
        <replaceable>DIRECTORY</replaceable></option></arg>
 
70
        <arg choice="plain"><option>-d
 
71
        <replaceable>DIRECTORY</replaceable></option></arg>
 
72
      </group>
 
73
      <sbr/>
 
74
      <group>
 
75
        <arg choice="plain"><option>--type
 
76
        <replaceable>KEYTYPE</replaceable></option></arg>
 
77
        <arg choice="plain"><option>-t
 
78
        <replaceable>KEYTYPE</replaceable></option></arg>
 
79
      </group>
 
80
      <sbr/>
 
81
      <group>
 
82
        <arg choice="plain"><option>--length
 
83
        <replaceable>BITS</replaceable></option></arg>
 
84
        <arg choice="plain"><option>-l
 
85
        <replaceable>BITS</replaceable></option></arg>
 
86
      </group>
 
87
      <sbr/>
 
88
      <group>
 
89
        <arg choice="plain"><option>--subtype
 
90
        <replaceable>KEYTYPE</replaceable></option></arg>
 
91
        <arg choice="plain"><option>-s
 
92
        <replaceable>KEYTYPE</replaceable></option></arg>
 
93
      </group>
 
94
      <sbr/>
 
95
      <group>
 
96
        <arg choice="plain"><option>--sublength
 
97
        <replaceable>BITS</replaceable></option></arg>
 
98
        <arg choice="plain"><option>-L
 
99
        <replaceable>BITS</replaceable></option></arg>
 
100
      </group>
 
101
      <sbr/>
 
102
      <group>
 
103
        <arg choice="plain"><option>--name
 
104
        <replaceable>NAME</replaceable></option></arg>
 
105
        <arg choice="plain"><option>-n
 
106
        <replaceable>NAME</replaceable></option></arg>
 
107
      </group>
 
108
      <sbr/>
 
109
      <group>
 
110
        <arg choice="plain"><option>--email
 
111
        <replaceable>ADDRESS</replaceable></option></arg>
 
112
        <arg choice="plain"><option>-e
 
113
        <replaceable>ADDRESS</replaceable></option></arg>
 
114
      </group>
 
115
      <sbr/>
 
116
      <group>
 
117
        <arg choice="plain"><option>--comment
 
118
        <replaceable>TEXT</replaceable></option></arg>
 
119
        <arg choice="plain"><option>-c
 
120
        <replaceable>TEXT</replaceable></option></arg>
 
121
      </group>
 
122
      <sbr/>
 
123
      <group>
 
124
        <arg choice="plain"><option>--expire
 
125
        <replaceable>TIME</replaceable></option></arg>
 
126
        <arg choice="plain"><option>-x
 
127
        <replaceable>TIME</replaceable></option></arg>
 
128
      </group>
 
129
      <sbr/>
 
130
      <group>
 
131
        <arg choice="plain"><option>--tls-keytype
 
132
        <replaceable>KEYTYPE</replaceable></option></arg>
 
133
        <arg choice="plain"><option>-T
 
134
        <replaceable>KEYTYPE</replaceable></option></arg>
 
135
      </group>
 
136
      <sbr/>
 
137
      <group>
 
138
        <arg choice="plain"><option>--force</option></arg>
 
139
        <arg choice="plain"><option>-f</option></arg>
 
140
      </group>
 
141
    </cmdsynopsis>
 
142
    <cmdsynopsis>
 
143
      <command>&COMMANDNAME;</command>
 
144
      <group choice="req">
 
145
        <arg choice="plain"><option>--password</option></arg>
 
146
        <arg choice="plain"><option>-p</option></arg>
 
147
        <arg choice="plain"><option>--passfile
 
148
        <replaceable>FILE</replaceable></option></arg>
 
149
        <arg choice="plain"><option>-F</option>
 
150
        <replaceable>FILE</replaceable></arg>
 
151
      </group>
 
152
      <sbr/>
 
153
      <group>
 
154
        <arg choice="plain"><option>--dir
 
155
        <replaceable>DIRECTORY</replaceable></option></arg>
 
156
        <arg choice="plain"><option>-d
 
157
        <replaceable>DIRECTORY</replaceable></option></arg>
 
158
      </group>
 
159
      <sbr/>
 
160
      <group>
 
161
        <arg choice="plain"><option>--name
 
162
        <replaceable>NAME</replaceable></option></arg>
 
163
        <arg choice="plain"><option>-n
 
164
        <replaceable>NAME</replaceable></option></arg>
 
165
      </group>
 
166
      <group>
 
167
        <arg choice="plain"><option>--no-ssh</option></arg>
 
168
        <arg choice="plain"><option>-S</option></arg>
 
169
      </group>
 
170
    </cmdsynopsis>
 
171
    <cmdsynopsis>
 
172
      <command>&COMMANDNAME;</command>
 
173
      <group choice="req">
 
174
        <arg choice="plain"><option>--help</option></arg>
 
175
        <arg choice="plain"><option>-h</option></arg>
 
176
      </group>
 
177
    </cmdsynopsis>
 
178
    <cmdsynopsis>
 
179
      <command>&COMMANDNAME;</command>
 
180
      <group choice="req">
 
181
        <arg choice="plain"><option>--version</option></arg>
 
182
        <arg choice="plain"><option>-v</option></arg>
 
183
      </group>
 
184
    </cmdsynopsis>
 
185
  </refsynopsisdiv>
 
186
  
 
187
  <refsect1 id="description">
 
188
    <title>DESCRIPTION</title>
 
189
    <para>
 
190
      <command>&COMMANDNAME;</command> is a program to generate the
 
191
      TLS and OpenPGP keys used by
 
192
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
193
      <manvolnum>8mandos</manvolnum></citerefentry>.  The keys are
 
194
      normally written to /etc/keys/mandos for later installation into
 
195
      the initrd image, but this, and most other things, can be
 
196
      changed with command line options.
 
197
    </para>
 
198
    <para>
 
199
      This program can also be used with the
 
200
      <option>--password</option> or <option>--passfile</option>
 
201
      options to generate a ready-made section for
 
202
      <filename>clients.conf</filename> (see
 
203
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
204
      <manvolnum>5</manvolnum></citerefentry>).
 
205
    </para>
 
206
  </refsect1>
 
207
  
 
208
  <refsect1 id="purpose">
 
209
    <title>PURPOSE</title>
 
210
    <para>
 
211
      The purpose of this is to enable <emphasis>remote and unattended
 
212
      rebooting</emphasis> of client host computer with an
 
213
      <emphasis>encrypted root file system</emphasis>.  See <xref
 
214
      linkend="overview"/> for details.
 
215
    </para>
 
216
  </refsect1>
 
217
  
 
218
  <refsect1 id="options">
 
219
    <title>OPTIONS</title>
 
220
    
 
221
    <variablelist>
 
222
      <varlistentry>
 
223
        <term><option>--help</option></term>
 
224
        <term><option>-h</option></term>
 
225
        <listitem>
 
226
          <para>
 
227
            Show a help message and exit
 
228
          </para>
 
229
        </listitem>
 
230
      </varlistentry>
 
231
      
 
232
      <varlistentry>
 
233
        <term><option>--dir
 
234
        <replaceable>DIRECTORY</replaceable></option></term>
 
235
        <term><option>-d
 
236
        <replaceable>DIRECTORY</replaceable></option></term>
 
237
        <listitem>
 
238
          <para>
 
239
            Target directory for key files.  Default is <filename
 
240
            class="directory">/etc/keys/mandos</filename>.
 
241
          </para>
 
242
        </listitem>
 
243
      </varlistentry>
 
244
      
 
245
      <varlistentry>
 
246
        <term><option>--type
 
247
        <replaceable>TYPE</replaceable></option></term>
 
248
        <term><option>-t
 
249
        <replaceable>TYPE</replaceable></option></term>
 
250
        <listitem>
 
251
          <para>
 
252
            OpenPGP key type.  Default is <quote>RSA</quote>.
 
253
          </para>
 
254
        </listitem>
 
255
      </varlistentry>
 
256
      
 
257
      <varlistentry>
 
258
        <term><option>--length
 
259
        <replaceable>BITS</replaceable></option></term>
 
260
        <term><option>-l
 
261
        <replaceable>BITS</replaceable></option></term>
 
262
        <listitem>
 
263
          <para>
 
264
            OpenPGP key length in bits.  Default is 4096.
 
265
          </para>
 
266
        </listitem>
 
267
      </varlistentry>
 
268
      
 
269
      <varlistentry>
 
270
        <term><option>--subtype
 
271
        <replaceable>KEYTYPE</replaceable></option></term>
 
272
        <term><option>-s
 
273
        <replaceable>KEYTYPE</replaceable></option></term>
 
274
        <listitem>
 
275
          <para>
 
276
            OpenPGP subkey type.  Default is <quote>RSA</quote>
 
277
          </para>
 
278
        </listitem>
 
279
      </varlistentry>
 
280
      
 
281
      <varlistentry>
 
282
        <term><option>--sublength
 
283
        <replaceable>BITS</replaceable></option></term>
 
284
        <term><option>-L
 
285
        <replaceable>BITS</replaceable></option></term>
 
286
        <listitem>
 
287
          <para>
 
288
            OpenPGP subkey length in bits.  Default is 4096.
 
289
          </para>
 
290
        </listitem>
 
291
      </varlistentry>
 
292
      
 
293
      <varlistentry>
 
294
        <term><option>--email
 
295
        <replaceable>ADDRESS</replaceable></option></term>
 
296
        <term><option>-e
 
297
        <replaceable>ADDRESS</replaceable></option></term>
 
298
        <listitem>
 
299
          <para>
 
300
            Email address of key.  Default is empty.
 
301
          </para>
 
302
        </listitem>
 
303
      </varlistentry>
 
304
      
 
305
      <varlistentry>
 
306
        <term><option>--comment
 
307
        <replaceable>TEXT</replaceable></option></term>
 
308
        <term><option>-c
 
309
        <replaceable>TEXT</replaceable></option></term>
 
310
        <listitem>
 
311
          <para>
 
312
            Comment field for key.  Default is empty.
 
313
          </para>
 
314
        </listitem>
 
315
      </varlistentry>
 
316
      
 
317
      <varlistentry>
 
318
        <term><option>--expire
 
319
        <replaceable>TIME</replaceable></option></term>
 
320
        <term><option>-x
 
321
        <replaceable>TIME</replaceable></option></term>
 
322
        <listitem>
 
323
          <para>
 
324
            Key expire time.  Default is no expiration.  See
 
325
            <citerefentry><refentrytitle>gpg</refentrytitle>
 
326
            <manvolnum>1</manvolnum></citerefentry> for syntax.
 
327
          </para>
 
328
        </listitem>
 
329
      </varlistentry>
 
330
      
 
331
      <varlistentry>
 
332
        <term><option>--tls-keytype
 
333
        <replaceable>KEYTYPE</replaceable></option></term>
 
334
        <term><option>-T
 
335
        <replaceable>KEYTYPE</replaceable></option></term>
 
336
        <listitem>
 
337
          <para>
 
338
            TLS key type.  Default is <quote>ed25519</quote>
 
339
          </para>
 
340
        </listitem>
 
341
      </varlistentry>
 
342
      
 
343
      <varlistentry>
 
344
        <term><option>--force</option></term>
 
345
        <term><option>-f</option></term>
 
346
        <listitem>
 
347
          <para>
 
348
            Force overwriting old key.
 
349
          </para>
 
350
        </listitem>
 
351
      </varlistentry>
 
352
      <varlistentry>
 
353
        <term><option>--password</option></term>
 
354
        <term><option>-p</option></term>
 
355
        <listitem>
 
356
          <para>
 
357
            Prompt for a password and encrypt it with the key already
 
358
            present in either <filename>/etc/keys/mandos</filename> or
 
359
            the directory specified with the <option>--dir</option>
 
360
            option.  Outputs, on standard output, a section suitable
 
361
            for inclusion in <citerefentry><refentrytitle
 
362
            >mandos-clients.conf</refentrytitle><manvolnum
 
363
            >8</manvolnum></citerefentry>.  The host name or the name
 
364
            specified with the <option>--name</option> option is used
 
365
            for the section header.  All other options are ignored,
 
366
            and no key is created.
 
367
          </para>
 
368
        </listitem>
 
369
      </varlistentry>
 
370
      <varlistentry>
 
371
        <term><option>--passfile
 
372
        <replaceable>FILE</replaceable></option></term>
 
373
        <term><option>-F
 
374
        <replaceable>FILE</replaceable></option></term>
 
375
        <listitem>
 
376
          <para>
 
377
            The same as <option>--password</option>, but read from
 
378
            <replaceable>FILE</replaceable>, not the terminal.
 
379
          </para>
 
380
        </listitem>
 
381
      </varlistentry>
 
382
      <varlistentry>
 
383
        <term><option>--no-ssh</option></term>
 
384
        <term><option>-S</option></term>
 
385
        <listitem>
 
386
          <para>
 
387
            When <option>--password</option> or
 
388
            <option>--passfile</option> is given, this option will
 
389
            prevent <command>&COMMANDNAME;</command> from calling
 
390
            <command>ssh-keyscan</command> to get an SSH fingerprint
 
391
            for this host and, if successful, output suitable config
 
392
            options to use this fingerprint as a
 
393
            <option>checker</option> option in the output.  This is
 
394
            otherwise the default behavior.
 
395
          </para>
 
396
        </listitem>
 
397
      </varlistentry>
 
398
    </variablelist>
 
399
  </refsect1>
 
400
  
 
401
  <refsect1 id="overview">
 
402
    <title>OVERVIEW</title>
 
403
    <xi:include href="overview.xml"/>
 
404
    <para>
 
405
      This program is a small utility to generate new TLS and OpenPGP
 
406
      keys for new Mandos clients, and to generate sections for
 
407
      inclusion in <filename>clients.conf</filename> on the server.
 
408
    </para>
 
409
  </refsect1>
 
410
  
 
411
  <refsect1 id="exit_status">
 
412
    <title>EXIT STATUS</title>
 
413
    <para>
 
414
      The exit status will be 0 if a new key (or password, if the
 
415
      <option>--password</option> option was used) was successfully
 
416
      created, otherwise not.
 
417
    </para>
 
418
  </refsect1>
 
419
  
 
420
  <refsect1 id="environment">
 
421
    <title>ENVIRONMENT</title>
 
422
    <variablelist>
 
423
      <varlistentry>
 
424
        <term><envar>TMPDIR</envar></term>
 
425
        <listitem>
 
426
          <para>
 
427
            If set, temporary files will be created here. See
 
428
            <citerefentry><refentrytitle>mktemp</refentrytitle>
 
429
            <manvolnum>1</manvolnum></citerefentry>.
 
430
          </para>
 
431
        </listitem>
 
432
      </varlistentry>
 
433
    </variablelist>
 
434
  </refsect1>
 
435
  
 
436
  <refsect1 id="files">
 
437
    <title>FILES</title>
 
438
    <para>
 
439
      Use the <option>--dir</option> option to change where
 
440
      <command>&COMMANDNAME;</command> will write the key files.  The
 
441
      default file names are shown here.
 
442
    </para>
 
443
    <variablelist>
 
444
      <varlistentry>
 
445
        <term><filename>/etc/keys/mandos/seckey.txt</filename></term>
 
446
        <listitem>
 
447
          <para>
 
448
            OpenPGP secret key file which will be created or
 
449
            overwritten.
 
450
          </para>
 
451
        </listitem>
 
452
      </varlistentry>
 
453
      <varlistentry>
 
454
        <term><filename>/etc/keys/mandos/pubkey.txt</filename></term>
 
455
        <listitem>
 
456
          <para>
 
457
            OpenPGP public key file which will be created or
 
458
            overwritten.
 
459
          </para>
 
460
        </listitem>
 
461
      </varlistentry>
 
462
      <varlistentry>
 
463
        <term><filename>/etc/keys/mandos/tls-privkey.pem</filename></term>
 
464
        <listitem>
 
465
          <para>
 
466
            Private key file which will be created or overwritten.
 
467
          </para>
 
468
        </listitem>
 
469
      </varlistentry>
 
470
      <varlistentry>
 
471
        <term><filename>/etc/keys/mandos/tls-pubkey.pem</filename></term>
 
472
        <listitem>
 
473
          <para>
 
474
            Public key file which will be created or overwritten.
 
475
          </para>
 
476
        </listitem>
 
477
      </varlistentry>
 
478
      <varlistentry>
 
479
        <term><filename class="directory">/tmp</filename></term>
 
480
        <listitem>
 
481
          <para>
 
482
            Temporary files will be written here if
 
483
            <varname>TMPDIR</varname> is not set.
 
484
          </para>
 
485
        </listitem>
 
486
      </varlistentry>
 
487
    </variablelist>
 
488
  </refsect1>
 
489
  
 
490
  <refsect1 id="bugs">
 
491
    <title>BUGS</title>
 
492
    <xi:include href="bugs.xml"/>
 
493
  </refsect1>
 
494
  
 
495
  <refsect1 id="example">
 
496
    <title>EXAMPLE</title>
 
497
    <informalexample>
 
498
      <para>
 
499
        Normal invocation needs no options:
 
500
      </para>
 
501
      <para>
 
502
        <userinput>&COMMANDNAME;</userinput>
 
503
      </para>
 
504
    </informalexample>
 
505
    <informalexample>
 
506
      <para>
 
507
        Create key in another directory and of another type.  Force
 
508
        overwriting old key files:
 
509
      </para>
 
510
      <para>
 
511
 
 
512
<!-- do not wrap this line -->
 
513
<userinput>&COMMANDNAME; --dir ~/keydir --type RSA --force</userinput>
 
514
 
 
515
      </para>
 
516
    </informalexample>
 
517
    <informalexample>
 
518
      <para>
 
519
        Prompt for a password, encrypt it with the keys in <filename
 
520
        class="directory">/etc/keys/mandos</filename> and output a
 
521
        section suitable for <filename>clients.conf</filename>.
 
522
      </para>
 
523
      <para>
 
524
        <userinput>&COMMANDNAME; --password</userinput>
 
525
      </para>
 
526
    </informalexample>
 
527
    <informalexample>
 
528
      <para>
 
529
        Prompt for a password, encrypt it with the keys in the
 
530
        <filename>client-key</filename> directory and output a section
 
531
        suitable for <filename>clients.conf</filename>.
 
532
      </para>
 
533
      <para>
 
534
 
 
535
<!-- do not wrap this line -->
 
536
<userinput>&COMMANDNAME; --password --dir client-key</userinput>
 
537
 
 
538
      </para>
 
539
    </informalexample>
 
540
  </refsect1>
 
541
  
 
542
  <refsect1 id="security">
 
543
    <title>SECURITY</title>
 
544
    <para>
 
545
      The <option>--type</option>, <option>--length</option>,
 
546
      <option>--subtype</option>, and <option>--sublength</option>
 
547
      options can be used to create keys of low security.  If in
 
548
      doubt, leave them to the default values.
 
549
    </para>
 
550
    <para>
 
551
      The key expire time is <emphasis>not</emphasis> guaranteed to be
 
552
      honored by <citerefentry><refentrytitle>mandos</refentrytitle>
 
553
      <manvolnum>8</manvolnum></citerefentry>.
 
554
    </para>
 
555
  </refsect1>
 
556
  
 
557
  <refsect1 id="see_also">
 
558
    <title>SEE ALSO</title>
 
559
    <para>
 
560
      <citerefentry><refentrytitle>intro</refentrytitle>
 
561
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
562
      <citerefentry><refentrytitle>gpg</refentrytitle>
 
563
      <manvolnum>1</manvolnum></citerefentry>,
 
564
      <citerefentry><refentrytitle>mandos-clients.conf</refentrytitle>
 
565
      <manvolnum>5</manvolnum></citerefentry>,
 
566
      <citerefentry><refentrytitle>mandos</refentrytitle>
 
567
      <manvolnum>8</manvolnum></citerefentry>,
 
568
      <citerefentry><refentrytitle>mandos-client</refentrytitle>
 
569
      <manvolnum>8mandos</manvolnum></citerefentry>,
 
570
      <citerefentry><refentrytitle>ssh-keyscan</refentrytitle>
 
571
      <manvolnum>1</manvolnum></citerefentry>
 
572
    </para>
 
573
  </refsect1>
 
574
  
 
575
</refentry>
 
576
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577
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578
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579
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580
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