67
46
<refname><command>&COMMANDNAME;</command></refname>
69
get password for encrypted rootdisk
48
Run Mandos plugins. Pass data from first succesful one.
75
54
<command>&COMMANDNAME;</command>
76
<arg choice='opt' rep='repeat'>OPTION</arg>
56
<arg choice="plain"><option>--global-env=<replaceable
57
>VAR</replaceable><literal>=</literal><replaceable
58
>value</replaceable></option></arg>
59
<arg choice="plain"><option>-e
60
<replaceable>VAR</replaceable><literal>=</literal><replaceable
61
>value</replaceable> </option></arg>
65
<arg choice="plain"><option>--env-for=<replaceable
66
>PLUGIN</replaceable><literal>:</literal><replaceable
67
>ENV</replaceable><literal>=</literal><replaceable
68
>value</replaceable></option></arg>
69
<arg choice="plain"><option>-f<replaceable>
70
PLUGIN</replaceable><literal>:</literal><replaceable
71
>ENV</replaceable><literal>=</literal><replaceable
72
>value</replaceable> </option></arg>
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<arg choice="plain"><option>--global-options=<replaceable
77
>OPTIONS</replaceable></option></arg>
78
<arg choice="plain"><option>-g<replaceable>
79
OPTIONS</replaceable> </option></arg>
83
<arg choice="plain"><option>--options-for=<replaceable
84
>PLUGIN</replaceable><literal>:</literal><replaceable
85
>OPTIONS</replaceable></option></arg>
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<arg choice="plain"><option>-f<replaceable>
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PLUGIN</replaceable><literal>:</literal><replaceable
88
>OPTIONS</replaceable> </option></arg>
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<arg choice="plain"><option>--disable=<replaceable
93
>PLUGIN</replaceable></option></arg>
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<arg choice="plain"><option>-d
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<replaceable>PLUGIN</replaceable> </option></arg>
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<arg><option>--groupid=<replaceable
99
>ID</replaceable></option></arg>
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<arg><option>--userid=<replaceable
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>ID</replaceable></option></arg>
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<arg><option>--plugin-dir=<replaceable
105
>DIRECTORY</replaceable></option></arg>
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<arg><option>--debug</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--help</option></arg>
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<arg choice="plain"><option>-?</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--usage</option></arg>
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<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--version</option></arg>
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<arg choice="plain"><option>-V</option></arg>
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129
<refsect1 id="description">
81
130
<title>DESCRIPTION</title>
83
<command>&COMMANDNAME;</command> is a plugin runner that waits
84
for any of its plugins to return sucessfull with a password, and
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passes it to cryptsetup. plugins is defined as any executables
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in the plugins directory will by default will be
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/conf/conf.d/mandos/plugins.d. to stdout.
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<command>&COMMANDNAME;</command> is a program which is meant to
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be specified as <quote>keyscript</quote> in <citerefentry>
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<refentrytitle>crypttab</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for the root disk. The
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aim of this program is therefore to output a password, which
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then <citerefentry><refentrytitle>cryptsetup</refentrytitle>
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<manvolnum>8</manvolnum></citerefentry> will use to try and
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unlock the root disk.
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This program is not meant to be invoked directly, but can be in
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order to test it. Note that any password obtained will simply
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be output on standard output.
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<refsect1 id="purpose">
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<title>PURPOSE</title>
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The purpose of this is to enable <emphasis>remote and unattended
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rebooting</emphasis> of client host computer with an
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<emphasis>encrypted root file system</emphasis>. See <xref
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linkend="overview"/> for details.
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<title>OPTIONS</title>
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<term><literal>-g</literal>,<literal>--global-options
93
<replaceable>OPTIONS</replaceable></literal></term>
96
Global options given to all plugins as additional start
97
arguments. Options are specified with a -o flag followed
98
by a comma separated string of options.
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<term><literal>-o</literal>,<literal> --options-for
105
<replaceable>PLUGIN</replaceable>:<replaceable>OPTION</replaceable>
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Plugin specific options given to the plugin as additional
110
start arguments. Options are specified with a -o flag
111
followed by a comma separated string of options.
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<term><literal>-d</literal>,<literal> --disable
118
<replaceable>PLUGIN</replaceable>
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Disable a specific plugin
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<term><literal>--groupid <replaceable>ID</replaceable>
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Group ID the plugins will run as
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<term><literal>--userid <replaceable>ID</replaceable>
142
User ID the plugins will run as
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<term><literal>--plugin-dir <replaceable>DIRECTORY</replaceable>
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Specify a different plugin directory
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<term><literal>--debug</literal></term>
167
<term><literal>-?</literal>, <literal>--help</literal></term>
176
<term><literal>--usage</literal></term>
179
Gives a short usage message
185
<term><literal>-V</literal>, <literal>--version</literal></term>
188
Prints the program version
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<term><option>--global-env
163
<replaceable>VAR</replaceable><literal>=</literal><replaceable
164
>value</replaceable></option></term>
166
<replaceable>VAR</replaceable><literal>=</literal><replaceable
167
>value</replaceable></option></term>
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This option will add an environment variable setting to
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all plugins. This will override any inherited environment
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<term><option>--env-for
179
<replaceable>PLUGIN</replaceable><literal>:</literal
180
><replaceable>ENV</replaceable><literal>=</literal
181
><replaceable>value</replaceable></option></term>
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<replaceable>PLUGIN</replaceable><literal>:</literal
184
><replaceable>ENV</replaceable><literal>=</literal
185
><replaceable>value</replaceable></option></term>
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This option will add an environment variable setting to
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the <replaceable>PLUGIN</replaceable> plugin. This will
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override any inherited environment variables or
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environment variables specified using
192
<option>--global-env</option>.
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<term><option>--global-options
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<replaceable>OPTIONS</replaceable></option></term>
201
<replaceable>OPTIONS</replaceable></option></term>
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Pass some options to <emphasis>all</emphasis> plugins.
205
<replaceable>OPTIONS</replaceable> is a comma separated
206
list of options. This is not a very useful option, except
207
for specifying the <quote><option>--debug</option></quote>
214
<term><option>--options-for
215
<replaceable>PLUGIN</replaceable><literal>:</literal
216
><replaceable>OPTION</replaceable></option></term>
218
<replaceable>PLUGIN</replaceable><literal>:</literal
219
><replaceable>OPTION</replaceable></option></term>
222
Pass some options to a specific plugin. <replaceable
223
>PLUGIN</replaceable> is the name (file basename) of a
224
plugin, and <replaceable>OPTIONS</replaceable> is a comma
225
separated list of options.
228
Note that since options are not split on whitespace, the
229
way to pass, to the plugin
230
<quote><filename>foo</filename></quote>, the option
231
<option>--bar</option> with the option argument
232
<quote>baz</quote> is either
233
<userinput>--options-for=foo:--bar=baz</userinput> or
234
<userinput>--options-for=foo:--bar,baz</userinput>, but
235
<emphasis>not</emphasis>
236
<userinput>--options-for="foo:--bar baz"</userinput>.
242
<term><option> --disable
243
<replaceable>PLUGIN</replaceable></option></term>
245
<replaceable>PLUGIN</replaceable></option></term>
248
Disable the plugin named
249
<replaceable>PLUGIN</replaceable>. The plugin will not be
256
<term><option>--groupid
257
<replaceable>ID</replaceable></option></term>
260
Change to group ID <replaceable>ID</replaceable> on
261
startup. The default is 65534. All plugins will be
262
started using this group ID. <emphasis>Note:</emphasis>
263
This must be a number, not a name.
269
<term><option>--userid
270
<replaceable>ID</replaceable></option></term>
273
Change to user ID <replaceable>ID</replaceable> on
274
startup. The default is 65534. All plugins will be
275
started using this user ID. <emphasis>Note:</emphasis>
276
This must be a number, not a name.
282
<term><option>--plugin-dir
283
<replaceable>DIRECTORY</replaceable></option></term>
286
Specify a different plugin directory. The default is
287
<filename>/lib/mandos/plugins.d</filename>, which will
288
exist in the initial <acronym>RAM</acronym> disk
295
<term><option>--debug</option></term>
298
Enable debug mode. This will enable a lot of output to
299
standard error about what the program is doing. The
300
program will still perform all other functions normally.
301
The default is to <emphasis>not</emphasis> run in debug
305
The plugins will <emphasis>not</emphasis> be affected by
307
<userinput><option>--global-options=--debug</option></userinput>
308
if complete debugging eruption is desired.
314
<term><option>--help</option></term>
315
<term><option>-?</option></term>
318
Gives a help message about options and their meanings.
324
<term><option>--usage</option></term>
327
Gives a short usage message.
333
<term><option>--version</option></term>
334
<term><option>-V</option></term>
337
Prints the program version.
344
<refsect1 id="overview">
345
<title>OVERVIEW</title>
346
<xi:include href="overview.xml"/>
348
This program will run on the client side in the initial
349
<acronym>RAM</acronym> disk environment, and is responsible for
350
getting a password. It does this by running plugins, one of
351
which will normally be the actual client program communicating
355
<refsect1 id="plugins">
356
<title>PLUGINS</title>
358
This program will get a password by running a number of
359
<firstterm>plugins</firstterm>, which are simply executable
360
programs in a directory in the initial <acronym>RAM</acronym>
361
disk environment. The default directory is
362
<filename>/lib/mandos/plugins.d</filename>, but this can be
363
changed with the <option>--plugin-dir</option> option. The
364
plugins are started in parallel, and the first plugin to output
365
a password <emphasis>and</emphasis> exit with a successful exit
366
code will make this plugin-runner output the password from that
367
plugin, stop any other plugins, and exit.
371
<refsect1 id="fallback">
372
<title>FALLBACK</title>
374
If no plugins succeed, this program will, as a fallback, ask for
375
a password on the console using <citerefentry><refentrytitle
376
>getpass</refentrytitle><manvolnum>3</manvolnum></citerefentry>,
377
and output it. This is not meant to be the normal mode of
378
operation, as there is a separate plugin for getting a password
383
<refsect1 id="exit_status">
384
<title>EXIT STATUS</title>
386
Exit status of this program is zero if no errors were
387
encountered, and otherwise not. The fallback (see <xref
388
linkend="fallback"/>) may or may not have succeeded in either
393
<refsect1 id="environment">
394
<title>ENVIRONMENT</title>
406
>/conf/conf.d/mandos/plugin-runner.conf</filename></term>
409
Since this program will be run as a keyscript, there is
410
little to no opportunity to pass command line arguments
411
to it. Therefore, it will <emphasis>also</emphasis>
412
read this file and use its contents as
413
whitespace-separated command line options. Also,
414
everything from a <quote>#</quote> character to the end
415
of a line is ignored.
418
This file will be processed <emphasis>before</emphasis>
419
the normal command line options, so the latter can
420
override the former, if need be.
431
There is no <option>--enable</option> option to enable disabled
436
<refsect1 id="examples">
437
<title>EXAMPLE</title>
442
<refsect1 id="security">
443
<title>SECURITY</title>
448
<refsect1 id="see_also">
449
<title>SEE ALSO</title>
451
<citerefentry><refentrytitle>cryptsetup</refentrytitle>
452
<manvolnum>8</manvolnum></citerefentry>,
453
<citerefentry><refentrytitle>mandos</refentrytitle>
454
<manvolnum>8</manvolnum></citerefentry>,
455
<citerefentry><refentrytitle>password-prompt</refentrytitle>
456
<manvolnum>8mandos</manvolnum></citerefentry>,
457
<citerefentry><refentrytitle>password-request</refentrytitle>
458
<manvolnum>8mandos</manvolnum></citerefentry>
463
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