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man: add more links to systemd-ask-password and systemd-tty-ask-password-agent

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Loosely inspired by https://bugzilla.redhat.com/show_bug.cgi?id=1411134.
This commit is contained in:
Zbigniew Jędrzejewski-Szmek 2017-01-09 13:51:06 -05:00
parent fc6e082622
commit c65aafbb33
2 changed files with 35 additions and 18 deletions
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43
man/systemd-ask-password.xml
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@ -61,10 +61,9 @@
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 standard output. 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>
run with no TTY or with <option>--no-tty</option> it will use the
system-wide query mechanism, which allows active users to respond via
several agents, listed below.</para>
<para>The purpose of this tool is to query system-wide passwords
— that is passwords not attached to a specific user account.
@ -76,25 +75,38 @@
<itemizedlist>
<listitem><para>A boot-time password agent asking the user for
passwords using Plymouth</para></listitem>
passwords using
<citerefentry project='die-net'><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
</para></listitem>
<listitem><para>A boot-time password agent querying the user
directly on the console</para></listitem>
directly on the console —
<citerefentry><refentrytitle>systemd-ask-password-console.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
</para></listitem>
<listitem><para>An agent requesting password input via a
<citerefentry
project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
message</para></listitem>
<listitem><para>A command line agent which can be started
temporarily to process queued password
requests</para></listitem>
<citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>
message —
<citerefentry><refentrytitle>systemd-ask-password-wall.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
</para></listitem>
<listitem><para>A TTY agent that is temporarily spawned during
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>
invocations</para></listitem>
invocations,</para></listitem>
<listitem><para>A command line agent which can be started
temporarily to process queued password
requests — <command>systemd-tty-ask-password-agent --query</command>.
</para></listitem>
</itemizedlist></para>
<para>Answering system-wide password queries is a privileged operation, hence
all the agents listed above (except for the last one), run as privileged
system services. The last one also needs elevated privileges, so
should be run through
<citerefentry project='die-net'><refentrytitle>sudo</refentrytitle><manvolnum>8</manvolnum></citerefentry>
or similar.</para>
<para>Additional password agents may be implemented according to
the <ulink
url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">systemd
@ -217,7 +229,8 @@
<title>See Also</title>
<para>
<citerefentry><refentrytitle>systemd</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-ask-password-console.service</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry><refentrytitle>systemd-tty-ask-password</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>keyctl</refentrytitle><manvolnum>1</manvolnum></citerefentry>,
<citerefentry project='die-net'><refentrytitle>plymouth</refentrytitle><manvolnum>8</manvolnum></citerefentry>,
<citerefentry project='man-pages'><refentrytitle>wall</refentrytitle><manvolnum>1</manvolnum></citerefentry>

10
man/systemd-tty-ask-password-agent.xml
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@ -50,7 +50,9 @@
<refsynopsisdiv>
<cmdsynopsis>
<command>systemd-tty-ask-password-agent <arg choice="opt" rep="repeat">OPTIONS</arg> <arg choice="opt" rep="repeat">VARIABLE=VALUE</arg></command>
<command>systemd-tty-ask-password-agent</command>
<arg choice="opt" rep="repeat">OPTIONS</arg>
<arg choice="opt" rep="repeat">VARIABLE=VALUE</arg>
</cmdsynopsis>
</refsynopsisdiv>
@ -65,8 +67,10 @@
<para><command>systemd-tty-ask-password-agent</command> implements
the <ulink url="http://www.freedesktop.org/wiki/Software/systemd/PasswordAgents">Password
Agents Specification</ulink>.</para>
Agents Specification</ulink>, and is one of many possible response agents which
answer to queries formulated with
<citerefentry><refentrytitle>systemd-ask-password</refentrytitle><manvolnum>1</manvolnum></citerefentry>.
</para>
</refsect1>
<refsect1>