143 lines
5.6 KiB
XML
143 lines
5.6 KiB
XML
<!-- Common Interface Language (CIL) Reference Guide -->
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<!-- sid_statements.xml -->
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<sect1>
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<title>SID Statements</title>
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<sect2 id="sid">
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<title>sid</title>
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<para>Declares a new SID identifier in the current namespace.</para>
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<para><emphasis role="bold">Statement definition:</emphasis></para>
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<programlisting><![CDATA[(sid sid_id)]]></programlisting>
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<para><emphasis role="bold">Where:</emphasis></para>
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<informaltable frame="all">
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<tgroup cols="2">
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<colspec colwidth="2 *"/>
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<colspec colwidth="6 *"/>
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<tbody>
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<row>
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<entry>
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<para><literal>sid</literal></para>
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</entry>
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<entry>
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<para>The <literal>sid</literal> keyword.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para><literal>sid_id</literal></para>
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</entry>
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<entry>
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<para>The <literal>sid</literal> identifier.</para>
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</entry>
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</row>
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</tbody></tgroup>
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</informaltable>
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<para><emphasis role="bold">Examples:</emphasis></para>
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<para>These examples show three <literal>sid</literal> declarations:</para>
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<programlisting><![CDATA[
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(sid kernel)
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(sid security)
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(sid igmp_packet)]]>
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</programlisting>
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</sect2>
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<sect2 id="sidorder">
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<title>sidorder</title>
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<para>Defines the order of <link linkend="sid">sid</link>'s. This is a mandatory statement when SIDs are defined. Multiple <literal>sidorder</literal> statements declared in the policy will form an ordered list.</para>
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<para><emphasis role="bold">Statement definition:</emphasis></para>
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<programlisting><![CDATA[(sidorder (sid_id ...))]]></programlisting>
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<para><emphasis role="bold">Where:</emphasis></para>
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<informaltable frame="all">
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<tgroup cols="2">
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<colspec colwidth="2 *"/>
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<colspec colwidth="6 *"/>
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<tbody>
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<row>
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<entry>
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<para><literal>sidorder</literal></para>
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</entry>
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<entry>
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<para>The <literal>sidorder</literal> keyword.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para><literal>sid_id</literal></para>
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</entry>
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<entry>
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<para>One or more <literal><link linkend="sid">sid</link></literal> identifiers.</para>
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</entry>
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</row>
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</tbody></tgroup>
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</informaltable>
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<para><emphasis role="bold">Example:</emphasis></para>
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<para>This will produce an ordered list of "<literal>kernel security unlabeled</literal>"</para>
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<programlisting><![CDATA[
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(sid kernel)
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(sid security)
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(sid unlabeled)
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(sidorder (kernel security))
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(sidorder (security unlabeled))]]>
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</programlisting>
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</sect2>
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<sect2 id="sidcontext">
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<title>sidcontext</title>
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<para>Associates an SELinux security <link linkend="context">context</link> to a previously declared <literal><link linkend="sid">sid</link></literal> identifier.</para>
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<para><emphasis role="bold">Statement definition:</emphasis></para>
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<programlisting><![CDATA[(sidcontext sid_id context_id)]]></programlisting>
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<para><emphasis role="bold">Where:</emphasis></para>
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<informaltable frame="all">
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<tgroup cols="2">
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<colspec colwidth="2 *"/>
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<colspec colwidth="6 *"/>
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<tbody>
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<row>
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<entry>
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<para><literal>sidcontext</literal></para>
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</entry>
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<entry>
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<para>The <literal>sidcontext</literal> keyword.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para><literal>sid_id</literal></para>
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</entry>
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<entry>
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<para>A single previously declared <literal><link linkend="sid">sid</link></literal> identifier.</para>
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</entry>
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</row>
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<row>
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<entry>
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<para><literal>context_id</literal></para>
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</entry>
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<entry>
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<para>A previously declared <literal><link linkend="context">context</link></literal> identifier or an anonymous security context (<literal><link linkend="user">user</link> <link linkend="role">role</link> <link linkend="type">type</link> <link linkend="levelrange">levelrange</link></literal>), the range MUST be defined whether the policy is MLS/MCS enabled or not.</para>
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</entry>
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</row>
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</tbody></tgroup>
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</informaltable>
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<para><emphasis role="bold">Examples:</emphasis></para>
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<para>This shows two named security context examples plus an anonymous context:</para>
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<programlisting><![CDATA[
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; Two named context:
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(sid kernel)
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(context kernel_context (u r process low_low))
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(sidcontext kernel kernel_context)
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(sid security)
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(context security_context (u object_r process low_low))
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(sidcontext security security_context)
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; An anonymous context:
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(sid unlabeled)
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(sidcontext unlabeled (u object_r ((s0) (s0))))]]>
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</programlisting>
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</sect2>
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</sect1>
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