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Diffstat (limited to 'man/systemd-ask-password.xml')
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diff --git a/man/systemd-ask-password.xml b/man/systemd-ask-password.xml new file mode 100644 index 0000000000..7b0b9ab809 --- /dev/null +++ b/man/systemd-ask-password.xml @@ -0,0 +1,183 @@ +<?xml version='1.0'?> <!--*-nxml-*--> +<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.2//EN" + "http://www.oasis-open.org/docbook/xml/4.2/docbookx.dtd"> + +<!-- + This file is part of systemd. + + Copyright 2011 Lennart Poettering + + systemd is free software; you can redistribute it and/or modify it + under the terms of the GNU Lesser General Public License as published by + the Free Software Foundation; either version 2.1 of the License, or + (at your option) any later version. + + systemd is distributed in the hope that it will be useful, but + WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public License + along with systemd; If not, see <http://www.gnu.org/licenses/>. +--> + +<refentry id="systemd-ask-password"> + + <refentryinfo> + <title>systemd-ask-password</title> + <productname>systemd</productname> + + <authorgroup> + <author> + <contrib>Developer</contrib> + <firstname>Lennart</firstname> + <surname>Poettering</surname> + <email>lennart@poettering.net</email> + </author> + </authorgroup> + </refentryinfo> + + <refmeta> + <refentrytitle>systemd-ask-password</refentrytitle> + <manvolnum>1</manvolnum> + </refmeta> + + <refnamediv> + <refname>systemd-ask-password</refname> + <refpurpose>Query the user for a system password</refpurpose> + </refnamediv> + + <refsynopsisdiv> + <cmdsynopsis> + <command>systemd-ask-password <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt">MESSAGE</arg></command> + </cmdsynopsis> + </refsynopsisdiv> + + <refsect1> + <title>Description</title> + + <para><command>systemd-ask-password</command> may be + used to query a system password or passphrase from the + user, using a question message specified on the + command line. When run from a TTY it will query a + password on the TTY and print it to STDOUT. When run + with no TTY or with <option>--no-tty</option> it will + query the password system-wide and allow active users + to respond via several agents. The latter is + only available to privileged processes.</para> + + <para>The purpose of this tool is to query system-wide + passwords -- that is passwords not attached to a + specific user account. Examples include: unlocking + encrypted hard disks when they are plugged in or at + boot, entering an SSL certificate passphrase for web + and VPN servers.</para> + + <para>Existing agents are: a boot-time password agent + asking the user for passwords using Plymouth; a + boot-time password agent querying the user directly on + the console; an agent requesting password input via a + <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry> + message; an agent suitable for running in a GNOME + session; a command line agent which can be started + temporarily to process queued password requests; a TTY + agent that is temporarily spawned during + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry> + invocations.</para> + + <para>Additional password agents may be implemented + according to the <ulink + url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">systemd + Password Agent Specification</ulink>.</para> + + <para>If a password is queried on a TTY the user may + press TAB to hide the asterisks normally shown for + each character typed. Pressing Backspace as first key + achieves the same effect.</para> + + </refsect1> + + <refsect1> + <title>Options</title> + + <para>The following options are understood:</para> + + <variablelist> + <varlistentry> + <term><option>-h</option></term> + <term><option>--help</option></term> + + <listitem><para>Prints a short help + text and exits.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--icon=</option></term> + + <listitem><para>Specify an icon name + alongside the password query, which may + be used in all agents supporting + graphical display. The icon name + should follow the <ulink + url="http://standards.freedesktop.org/icon-naming-spec/icon-naming-spec-latest.html">XDG + Icon Naming + Specification</ulink>.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--timeout=</option></term> + + <listitem><para>Specify the query + timeout in seconds. Defaults to + 90s.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--no-tty</option></term> + + <listitem><para>Never ask for password + on current TTY even if one is + available. Always use agent + system.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--accept-cached</option></term> + + <listitem><para>If passed accept + cached passwords, i.e. passwords + previously typed in.</para></listitem> + </varlistentry> + + <varlistentry> + <term><option>--multiple</option></term> + + <listitem><para>When used in + conjunction with + <option>--accept-cached</option> + accept multiple passwords. This will + output one password per + line.</para></listitem> + </varlistentry> + </variablelist> + + </refsect1> + + <refsect1> + <title>Exit status</title> + + <para>On success 0 is returned, a non-zero failure + code otherwise.</para> + </refsect1> + + <refsect1> + <title>See Also</title> + <para> + <citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>, + <citerefentry><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>, + <citerefentry><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry> + </para> + </refsect1> + +</refentry> |