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  • Committer: Teddy Hogeborn
  • Date: 2024-09-08 05:08:20 UTC
  • mto: This revision was merged to the branch mainline in revision 410.
  • Revision ID: teddy@recompile.se-20240908050820-jpkid6ufjb9n107o
http://bugs.debian.org/1079588
Fix #1079588 by not outputting to stdout in maintainer scripts

From The Debconf Programmer's Tutorial: "Anything your maintainer
scripts output to standard output is passed into the frontend as a
command".  We must make sure to redirect stdout to stderr for every
command in the postinst and postrm scripts which might output to
stdout.

* debian/mandos-client.postinst (update_initramfs): Add "1>&2" to
  invocations of update-initramfs and /etc/kernel/postinst.d/dracut.
  (add_mandos_user): Add "1>&2" to invocations of usermod, groupmod,
  and adduser.
  (create_keys): Add "1>&2" to invocations of mandos-keygen,
  gpg-connect-agent, certtool, and openssl.
  (create_dh_params): Add "1>&2" to invocations of certtool and
  openssl.  Add "--force" option to "rm".
* debian/mandos-client.postrm (update_initramfs): Add "1>&2" to
  invocations of update-initramfs and /etc/kernel/postinst.d/dracut.

Closes: #1079588
Reported-By: Ben Hutchings <ben@decadent.org.uk>

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mandos-clients.conf.xml
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        "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY CONFNAME "mandos-clients.conf">
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<!ENTITY CONFPATH "<filename>/etc/mandos/clients.conf</filename>">
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<!ENTITY TIMESTAMP "2016-02-28">
 
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<!ENTITY TIMESTAMP "2019-02-10">
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<!ENTITY % common SYSTEM "common.ent">
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%common;
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]>
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      <year>2014</year>
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      <year>2015</year>
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      <year>2016</year>
 
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      <year>2017</year>
 
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      <year>2018</year>
 
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      <year>2019</year>
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      <holder>Teddy Hogeborn</holder>
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      <holder>Björn Påhlsson</holder>
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    </copyright>
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            >--</option> %%(host)s</literal></quote>.  Note that
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            <command>mandos-keygen</command>, when generating output
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            to be inserted into this file, normally looks for an SSH
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            server on the Mandos client, and, if it find one, outputs
 
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            server on the Mandos client, and, if it finds one, outputs
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            a <option>checker</option> option to check for the
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            client’s key fingerprint – this is more secure against
 
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            client’s SSH key fingerprint – this is more secure against
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            spoofing.
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          </para>
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          <para>
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        ><replaceable>HEXSTRING</replaceable></option></term>
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        <listitem>
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          <para>
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            This option is <emphasis>required</emphasis>.
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          </para>
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          <para>
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            This option sets the OpenPGP fingerprint that identifies
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            the public key that clients authenticate themselves with
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            through TLS.  The string needs to be in hexidecimal form,
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            but spaces or upper/lower case are not significant.
 
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            This option is <emphasis>required</emphasis> if the
 
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            <option>key_id</option> is not set, and
 
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            <emphasis>optional</emphasis> otherwise.
 
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          </para>
 
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          <para>
 
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            This option sets the OpenPGP fingerprint that (before
 
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            GnuTLS 3.6.0) identified the public key that clients
 
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            authenticate themselves with through TLS.  The string
 
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            needs to be in hexadecimal form, but spaces or upper/lower
 
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            case are not significant.
 
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          </para>
 
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        </listitem>
 
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      </varlistentry>
 
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      <varlistentry>
 
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        <term><option>key_id<literal> = </literal
 
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        ><replaceable>HEXSTRING</replaceable></option></term>
 
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        <listitem>
 
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          <para>
 
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            This option is <emphasis>required</emphasis> if the
 
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            <option>fingerprint</option> is not set, and
 
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            <emphasis>optional</emphasis> otherwise.
 
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          </para>
 
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          <para>
 
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            This option sets the certificate key ID that (with GnuTLS
 
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            3.6.6 or later) identifies the public key that clients
 
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            authenticate themselves with through TLS.  The string
 
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            needs to be in hexadecimal form, but spaces or upper/lower
 
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            case are not significant.
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          </para>
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        </listitem>
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      </varlistentry>
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          <para>
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            If present, this option must be set to a string of
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            base64-encoded binary data.  It will be decoded and sent
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            to the client matching the above
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            <option>fingerprint</option>.  This should, of course, be
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            OpenPGP encrypted data, decryptable only by the client.
 
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            to the client matching the above <option>key_id</option>
 
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            or <option>fingerprint</option>.  This should, of course,
 
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            be OpenPGP encrypted data, decryptable only by the client.
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            The program <citerefentry><refentrytitle><command
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            >mandos-keygen</command></refentrytitle><manvolnum
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            >8</manvolnum></citerefentry> can, using its
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        <quote><literal>created</literal></quote>,
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        <quote><literal>enabled</literal></quote>,
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        <quote><literal>expires</literal></quote>,
 
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        <quote><literal>key_id</literal></quote>,
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        <quote><literal>fingerprint</literal></quote>,
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        <quote><literal>host</literal></quote>,
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        <quote><literal>interval</literal></quote>,
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      <literal>%(<replaceable>foo</replaceable>)s</literal> is
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      obscure.
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    </para>
 
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    <xi:include href="bugs.xml"/>
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  </refsect1>
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  <refsect1 id="example">
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# Client "foo"
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[foo]
 
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key_id = 788cd77115cd0bb7b2d5e0ae8496f6b48149d5e712c652076b1fd2d957ef7c1f
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fingerprint =  7788 2722 5BA7 DE53 9C5A  7CFA 59CF F7CD BD9A 5920
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secret =
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        hQIOA6QdEjBs2L/HEAf/TCyrDe5Xnm9esa+Pb/vWF9CUqfn4srzVgSu234
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# Client "bar"
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[bar]
 
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key_id = F90C7A81D72D1EA69A51031A91FF8885F36C8B46D155C8C58709A4C99AE9E361
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fingerprint = 3e393aeaefb84c7e89e2f547b3a107558fca3a27
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secfile = /etc/mandos/bar-secret
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timeout = PT15M