source: chapter08/libcap.xml@ 0ab6aa3

multilib
Last change on this file since 0ab6aa3 was 57e2684d, checked in by Thomas Trepl (Moody) <thomas@…>, 12 months ago

Automatic merge of trunk into multilib

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File size: 6.5 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
3 "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
4 <!ENTITY % general-entities SYSTEM "../general.ent">
5 %general-entities;
6]>
7
8<sect1 id="ch-system-libcap" role="wrap">
9 <?dbhtml filename="libcap.html"?>
10
11 <sect1info condition="script">
12 <productname>libcap</productname>
13 <productnumber>&libcap-version;</productnumber>
14 <address>&libcap-url;</address>
15 </sect1info>
16
17 <title>Libcap-&libcap-version;</title>
18
19 <indexterm zone="ch-system-libcap">
20 <primary sortas="a-Libcap">Libcap</primary>
21 </indexterm>
22
23 <sect2 role="package">
24 <title/>
25
26 <para>The Libcap package implements the user-space interfaces to the POSIX
27 1003.1e capabilities available in Linux kernels. These capabilities are a
28 partitioning of the all powerful root privilege into a set of distinct
29 privileges.</para>
30
31 <segmentedlist>
32 <segtitle>&buildtime;</segtitle>
33 <segtitle>&diskspace;</segtitle>
34
35 <seglistitem>
36 <seg>&libcap-fin-sbu;</seg>
37 <seg>&libcap-fin-du;</seg>
38 </seglistitem>
39 </segmentedlist>
40
41 </sect2>
42
43 <sect2 role="installation">
44 <title>Installation of Libcap</title>
45
46 <para>Prevent static libraries from being installed:</para>
47
48<screen><userinput remap="pre">sed -i '/install -m.*STA/d' libcap/Makefile</userinput></screen>
49
50 <para>Compile the package:</para>
51
52<screen><userinput remap="make">make prefix=/usr lib=lib</userinput></screen>
53
54 <variablelist>
55 <title>The meaning of the make option:</title>
56
57 <varlistentry>
58 <term><parameter>lib=lib</parameter></term>
59 <listitem>
60 <para>This parameter sets the library directory to
61 <filename>/usr/lib</filename> rather than
62 <filename>/usr/lib64</filename> on x86_64. It has no effect on
63 x86.</para>
64 </listitem>
65 </varlistentry>
66 </variablelist>
67
68 <para>To test the results, issue:</para>
69
70<screen><userinput remap="test">make test</userinput></screen>
71
72 <para>Install the package:</para>
73
74<screen><userinput remap="install">make prefix=/usr lib=lib install</userinput></screen>
75
76 </sect2>
77
78 <!-- - - - - - - - - - -->
79 <!-- Multilib - 32bit -->
80 <!-- - - - - - - - - - -->
81
82 <sect2 arch="ml_32,ml_all" role="installation">
83 <title>Installation of Libcap - 32bit</title>
84
85 <para>Clean previous build:</para>
86
87<screen><userinput remap="pre">make distclean</userinput></screen>
88
89 <para>Compile the package:</para>
90
91<screen><userinput remap="make">make CC="gcc -m32 -march=i686"</userinput></screen>
92
93 <para>Install the package:</para>
94
95<screen><userinput remap="install">make CC="gcc -m32 -march=i686" lib=lib32 prefix=$PWD/DESTDIR/usr -C libcap install
96cp -Rv DESTDIR/usr/lib32/* /usr/lib32
97sed -e "s|^libdir=.*|libdir=/usr/lib32|" -i /usr/lib32/pkgconfig/lib{cap,psx}.pc
98chmod -v 755 /usr/lib32/libcap.so.&libcap-version;
99rm -rf DESTDIR</userinput></screen>
100
101 </sect2><!-- m32 -->
102
103 <!-- - - - - - - - - - -->
104 <!-- Multilib - x32bit -->
105 <!-- - - - - - - - - - -->
106
107 <sect2 arch="ml_x32,ml_all" role="installation">
108 <title>Installation of Libcap - x32bit</title>
109
110 <para>Clean previous build:</para>
111
112<screen><userinput remap="pre">make distclean</userinput></screen>
113
114 <para>Compile the package:</para>
115
116<screen><userinput remap="make">make CC="gcc -mx32 -march=x86-64"</userinput></screen>
117
118 <para>Install the package:</para>
119
120<screen><userinput remap="install">make CC="gcc -mx32 -march=x86-64" lib=libx32 prefix=$PWD/DESTDIR/usr -C libcap install
121cp -Rv DESTDIR/usr/libx32/* /usr/libx32
122sed -e "s|^libdir=.*|libdir=/usr/libx32|" -i /usr/libx32/pkgconfig/lib{cap,psx}.pc
123chmod -v 755 /usr/libx32/libcap.so.&libcap-version;
124rm -rf DESTDIR</userinput></screen>
125
126 </sect2><!-- mx32 -->
127
128 <sect2 id="contents-libcap" role="content">
129 <title>Contents of Libcap</title>
130
131 <segmentedlist>
132 <segtitle>Installed programs</segtitle>
133 <segtitle>Installed library</segtitle>
134
135 <seglistitem>
136 <seg>capsh, getcap, getpcaps, and setcap</seg>
137 <seg>libcap.so and libpsx.so</seg>
138 </seglistitem>
139 </segmentedlist>
140
141 <variablelist>
142 <bridgehead renderas="sect3">Short Descriptions</bridgehead>
143 <?dbfo list-presentation="list"?>
144 <?dbhtml list-presentation="table"?>
145
146 <varlistentry id="capsh">
147 <term><command>capsh</command></term>
148 <listitem>
149 <para>A shell wrapper to explore and constrain capability support</para>
150 <indexterm zone="ch-system-libcap capsh">
151 <primary sortas="b-capsh">capsh</primary>
152 </indexterm>
153 </listitem>
154 </varlistentry>
155
156 <varlistentry id="getcap">
157 <term><command>getcap</command></term>
158 <listitem>
159 <para>Examines file capabilities</para>
160 <indexterm zone="ch-system-libcap getcap">
161 <primary sortas="b-getcap">getcap</primary>
162 </indexterm>
163 </listitem>
164 </varlistentry>
165
166 <varlistentry id="getpcaps">
167 <term><command>getpcaps</command></term>
168 <listitem>
169 <para>Displays the capabilities on the queried process(es)</para>
170 <indexterm zone="ch-system-libcap getpcaps">
171 <primary sortas="b-getpcaps">getpcaps</primary>
172 </indexterm>
173 </listitem>
174 </varlistentry>
175
176 <varlistentry id="setcap">
177 <term><command>setcap</command></term>
178 <listitem>
179 <para>Sets file capabilities</para>
180 <indexterm zone="ch-system-libcap setcap">
181 <primary sortas="b-setcap">setcap</primary>
182 </indexterm>
183 </listitem>
184 </varlistentry>
185
186 <varlistentry id="libcap">
187 <term><filename class="libraryfile">libcap</filename></term>
188 <listitem>
189 <para>Contains the library functions for manipulating POSIX 1003.1e
190 capabilities</para>
191 <indexterm zone="ch-system-libcap libcap">
192 <primary sortas="c-libcap">libcap</primary>
193 </indexterm>
194 </listitem>
195 </varlistentry>
196
197 <varlistentry id="libpsx">
198 <term><filename class="libraryfile">libpsx</filename></term>
199 <listitem>
200 <para>Contains functions to support POSIX semantics for syscalls
201 associated with the pthread library</para>
202 <indexterm zone="ch-system-libcap libpsx">
203 <primary sortas="c-libpsx">libpsx</primary>
204 </indexterm>
205 </listitem>
206 </varlistentry>
207
208 </variablelist>
209
210 </sect2>
211
212</sect1>
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