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<command>&COMMANDNAME;</command>
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<group choice="req">
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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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<arg choice='plain'><option>--help</option></arg>
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<arg choice='plain'><option>-?</option></arg>
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140
<command>&COMMANDNAME;</command>
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<arg choice="plain"><option>--usage</option></arg>
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<arg choice='plain'><option>--usage</option></arg>
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<command>&COMMANDNAME;</command>
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<group choice="req">
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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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<arg choice='plain'><option>--version</option></arg>
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<arg choice='plain'><option>-V</option></arg>
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150
</refsynopsisdiv>
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152
<refsect1 id="description">
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153
<title>DESCRIPTION</title>
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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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<command>&COMMANDNAME;</command> is a plugin runner that waits
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for any of its plugins to return sucessfull with a password, and
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passes it to cryptsetup as stdout message. This command is not
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meant to be invoked directly, but is instead meant to be run by
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cryptsetup by being specified in /etc/crypttab as a keyscript
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and subsequlently started in the initrd environment. See
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<citerefentry><refentrytitle>crypttab</refentrytitle>
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<manvolnum>5</manvolnum></citerefentry> for more information on
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plugins is looked for in the plugins directory which by default will be
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/conf/conf.d/mandos/plugins.d if not changed by option --plugin-dir.
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172
<title>OPTIONS</title>
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<term><option>--global-options
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<replaceable>OPTIONS</replaceable></option></term>
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<replaceable>OPTIONS</replaceable></option></term>
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Pass some options to <emphasis>all</emphasis> plugins.
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<replaceable>OPTIONS</replaceable> is a comma separated
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list of options. This is not a very useful option, except
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for specifying the <quote><option>--debug</option></quote>
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<term><option>--options-for
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<replaceable>PLUGIN</replaceable><literal>:</literal
180
><replaceable>OPTION</replaceable></option></term>
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<replaceable>PLUGIN</replaceable><literal>:</literal
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><replaceable>OPTION</replaceable></option></term>
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Pass some options to a specific plugin. <replaceable
187
>PLUGIN</replaceable> is the name (file basename) of a
188
plugin, and <replaceable>OPTIONS</replaceable> is a comma
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separated list of options.
192
Note that since options are not split on whitespace, the
193
way to pass, to the plugin
194
<quote><filename>foo</filename></quote>, the option
195
<option>--bar</option> with the option argument
196
<quote>baz</quote> is either
197
<userinput>--options-for=foo:--bar=baz</userinput> or
198
<userinput>--options-for=foo:--bar,baz</userinput>, but
199
<emphasis>not</emphasis>
200
<userinput>--options-for="foo:--bar baz"</userinput>.
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<term><option> --disable
207
<replaceable>PLUGIN</replaceable></option></term>
209
<replaceable>PLUGIN</replaceable></option></term>
212
Disable the plugin named
213
<replaceable>PLUGIN</replaceable>. The plugin will not be
220
<term><option>--groupid
221
<replaceable>ID</replaceable></option></term>
224
Change to group ID <replaceable>ID</replaceable> on
225
startup. The default is 65534. All plugins will be
226
started using this group ID. <emphasis>Note:</emphasis>
227
This must be a number, not a name.
233
<term><option>--userid
234
<replaceable>ID</replaceable></option></term>
237
Change to user ID <replaceable>ID</replaceable> on
238
startup. The default is 65534. All plugins will be
239
started using this user ID. <emphasis>Note:</emphasis>
240
This must be a number, not a name.
246
<term><option>--plugin-dir
247
<replaceable>DIRECTORY</replaceable></option></term>
250
Specify a different plugin directory. The default is
251
<filename>/lib/mandos/plugins.d</filename>, which will
252
exist in the initial <acronym>RAM</acronym> disk
259
<term><option>--debug</option></term>
262
Enable debug mode. This will enable a lot of output to
263
standard error about what the program is doing. The
264
program will still perform all other functions normally.
265
The default is to <emphasis>not</emphasis> run in debug
269
The plugins will <emphasis>not</emphasis> be affected by
271
<userinput><option>--global-options=--debug</option></userinput>
272
if complete debugging eruption is desired.
278
<term><option>--help</option></term>
279
<term><option>-?</option></term>
282
Gives a help message about options and their meanings.
288
<term><option>--usage</option></term>
291
Gives a short usage message.
297
<term><option>--version</option></term>
298
<term><option>-V</option></term>
301
Prints the program version.
175
<term><literal>-g</literal>,<literal>--global-options
176
<replaceable>OPTIONS</replaceable></literal></term>
179
Global options given to all plugins as additional start
180
arguments. Options are specified with a -o flag followed
181
by a comma separated string of options.
187
<term><literal>-o</literal>,<literal> --options-for
188
<replaceable>PLUGIN</replaceable>:<replaceable>OPTION</replaceable>
192
Plugin specific options given to the plugin as additional
193
start arguments. Options are specified with a -o flag
194
followed by a comma separated string of options.
200
<term><literal>-d</literal>,<literal> --disable
201
<replaceable>PLUGIN</replaceable>
205
Disable a specific plugin
211
<term><literal>--groupid <replaceable>ID</replaceable>
215
Group ID the plugins will run as
221
<term><literal>--userid <replaceable>ID</replaceable>
225
User ID the plugins will run as
231
<term><literal>--plugin-dir <replaceable>DIRECTORY</replaceable>
235
Specify a different plugin directory
241
<term><literal>--debug</literal></term>
250
<term><literal>-?</literal>, <literal>--help</literal></term>
259
<term><literal>--usage</literal></term>
262
Gives a short usage message
268
<term><literal>-V</literal>, <literal>--version</literal></term>
271
Prints the program version
308
<refsect1 id="overview">
309
<title>OVERVIEW</title>
310
<xi:include href="overview.xml"/>
312
This program will run on the client side in the initial
313
<acronym>RAM</acronym> disk environment, and is responsible for
314
getting a password. It does this by running plugins, one of
315
which will normally be the actual client program communicating
319
<refsect1 id="plugins">
320
<title>PLUGINS</title>
322
This program will get a password by running a number of
323
<firstterm>plugins</firstterm>, which are simply executable
324
programs in a directory in the initial <acronym>RAM</acronym>
325
disk environment. The default directory is
326
<filename>/lib/mandos/plugins.d</filename>, but this can be
327
changed with the <option>--plugin-dir</option> option. The
328
plugins are started in parallel, and the first plugin to output
329
a password and exit with a successful exit code will make this
330
plugin-runner output that password, stop any other plugins, and
336
<title>FALLBACK</title>
340
278
<refsect1 id="exit_status">
341
279
<title>EXIT STATUS</title>