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227 lines
7.8 KiB
XML
227 lines
7.8 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../../general.ent">
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%general-entities;
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<!ENTITY acl-download-http "http://download.savannah.gnu.org/releases/acl/acl-&acl-version;.src.tar.gz">
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<!ENTITY acl-download-ftp " ">
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<!ENTITY acl-md5sum "a61415312426e9c2212bd7dc7929abda">
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<!ENTITY acl-size "384 KB">
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<!ENTITY acl-buildsize "9.1 MB">
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<!ENTITY acl-time "0.1 SBU">
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]>
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<sect1 id="acl" xreflabel="acl-&acl-version;">
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<?dbhtml filename="acl.html"?>
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<sect1info>
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<date>$Date$</date>
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</sect1info>
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<title>acl-&acl-version;</title>
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<indexterm zone="acl">
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<primary sortas="a-acl">acl</primary>
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</indexterm>
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<sect2 role="package">
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<title>Introduction to acl</title>
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<para>The <application>acl</application> package contains utilities to
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administer Access Control Lists, which are used to define more fine-grained
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discretionary access rights for files and directories.</para>
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&lfs75_checked;
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<bridgehead renderas="sect3">Package Information</bridgehead>
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<itemizedlist spacing="compact">
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<listitem>
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<para>Download (HTTP): <ulink url="&acl-download-http;"/></para>
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</listitem>
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<listitem>
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<para>Download (FTP): <ulink url="&acl-download-ftp;"/></para>
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</listitem>
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<listitem>
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<para>Download MD5 sum: &acl-md5sum;</para>
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</listitem>
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<listitem>
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<para>Download size: &acl-size;</para>
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</listitem>
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<listitem>
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<para>Estimated disk space required: &acl-buildsize;</para>
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</listitem>
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<listitem>
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<para>Estimated build time: &acl-time;</para>
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</listitem>
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</itemizedlist>
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<bridgehead renderas="sect3">acl Dependencies</bridgehead>
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<bridgehead renderas="sect4">Required</bridgehead>
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<para role="required"><xref linkend="attr"/></para>
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<para condition="html" role="usernotes">User Notes:
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<ulink url="&blfs-wiki;/acl"/></para>
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</sect2>
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<sect2 role="installation">
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<title>Installation of acl</title>
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<para>Install <application>acl</application> by running the following
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commands:</para>
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<screen><userinput>sed -i -e 's|/@pkg_name@|&-@pkg_version@|' \
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include/builddefs.in &&
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INSTALL_USER=root \
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INSTALL_GROUP=root \
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./configure --prefix=/usr --libexecdir=/usr/lib --disable-static &&
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make</userinput></screen>
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<para>For meaningful results, the tests need to be carried out on a file
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system that supports extended attributes. It is also required that
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<application>Coreutils</application> is re-installed after
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<application>acl</application> is installed so that the extra acl bit
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displays correctly on a <command>ls</command> command.</para>
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<para>Now, as the <systemitem class="username">root</systemitem> user:</para>
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<!-- Package uses DIST_ROOT instead of DESTDIR -->
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<screen role="root"><userinput>make install install-dev install-lib &&
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chmod -v 755 /usr/lib/libacl.so &&
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mv -v /usr/lib/libacl.so.* /lib &&
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ln -sfv ../../lib/libacl.so.1 /usr/lib/libacl.so &&
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install -v -m644 doc/*.txt /usr/share/doc/acl-&acl-version;</userinput></screen>
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<para>You should now re-install <application><ulink
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url="&lfs-root;/chapter06/coreutils.html">Coreutils</ulink>
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</application> and proceed to run the test suite.</para>
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<para>There are three sets of tests that come with this package. The local
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partition where the tests are run must be mounted with acl configured as
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described below. Additionally, the users <systemitem
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class="username">bin</systemitem> and <systemitem
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class="username">daemon</systemitem> must be created or modified to have a
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proper shell and home directory and the group <systemitem
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class="groupname">daemon</systemitem> must be a member of the <systemitem
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class="groupname">bin</systemitem> group. The kernel must also be
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configured with the appropriate ACL options (there are nine different
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options).</para>
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<para>To run the standard tests run <command>make tests </command>. As
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<systemitem class="username">root</systemitem> user, run <command>make
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root-tests</command>.</para>
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<para>The third set of tests are Network File System (NFS) specific. See
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the contents of the test files in the test/nfs/ directory for the setup
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requirements.</para>
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</sect2>
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<sect2 role="commands">
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<title>Command Explanations</title>
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<para><command>sed -i ... include/builddefs.in</command>: This command
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modifies the documentation directory so that it is a versioned
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directory.</para>
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<para><command>--libexecdir=/usr/lib</command>: This switch ensures that
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<filename class="libraryfile">libacl.la</filename> is installed in the correct
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directory, and that a spurious
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<filename class="libraryfile">libacl.so</filename> symlink is not created in
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<filename class="directory">/usr/libexec/</filename>.</para>
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<xi:include xmlns:xi="http://www.w3.org/2001/XInclude"
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href="../../xincludes/static-libraries.xml"/>
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</sect2>
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<sect2 role="configuration">
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<title>Configuring acl</title>
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<sect3><title>Configuration Information</title>
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<para>There is no configuration to <application>acl</application> itself,
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but to get any use out of <application>acl</application>, a filesystem
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needs to support access control lists.</para>
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<para>One way to achieve this is to add the acl option to an ext3
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filesystem in the <filename>/etc/fstab</filename> file as shown
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below:</para>
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<screen># file system mount-point type options dump fsck
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# order
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/dev/sda1 / ext3 defaults,acl,user_xattr 0 2</screen>
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</sect3>
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</sect2>
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<sect2 role="content">
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<title>Contents</title>
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<segmentedlist>
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<segtitle>Installed Programs</segtitle>
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<segtitle>Installed Library</segtitle>
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<segtitle>Installed Directories</segtitle>
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<seglistitem>
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<seg>chacl, getfacl, and setfacl</seg>
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<seg>libacl.{so,a}</seg>
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<seg>/usr/{include/acl,share/doc/acl-&acl-version;}</seg>
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</seglistitem>
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</segmentedlist>
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<variablelist>
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<bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="chacl">
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<term><command>chacl</command></term>
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<listitem>
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<para>changes the access control list of a file or directory.</para>
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<indexterm zone="acl chacl">
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<primary sortas="b-chacl">chacl</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="getfacl">
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<term><command>getfacl</command></term>
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<listitem>
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<para>gets file access control lists.</para>
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<indexterm zone="acl getfacl">
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<primary sortas="b-getfacl">getfacl</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="setfacl">
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<term><command>setfacl</command></term>
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<listitem>
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<para>sets file access control lists.</para>
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<indexterm zone="acl setfacl">
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<primary sortas="b-setfacl">setfacl</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libacl">
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<term><filename class='libraryfile'>libacl.{so,a}</filename></term>
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<listitem>
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<para>contains the <application>acl</application> API functions.</para>
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<indexterm zone="acl libacl">
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<primary sortas="c-libacl">libacl.{so,a}</primary>
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</indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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