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shorewall_code/Shorewall/manpages/shorewall-tcpri.xml

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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE refentry PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
"http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd">
<refentry>
<refmeta>
<refentrytitle>shorewall-tcpri</refentrytitle>
<manvolnum>5</manvolnum>
</refmeta>
<refnamediv>
<refname>tcpri</refname>
<refpurpose>Shorewall file</refpurpose>
</refnamediv>
<refsynopsisdiv>
<cmdsynopsis>
<command>/etc/shorewall/tcpri</command>
</cmdsynopsis>
</refsynopsisdiv>
<refsect1>
<title>Description</title>
<para>This file is used to specify the priority of traffic for simple
traffic shaping (TC_ENABLED=Simple in <ulink
url="shorewall.conf.html">shorewall.conf</ulink>(5)). The priority band of
each packet is determined by the <emphasis role="bold">last</emphasis>
entry that the packet matches. If a packet doesn't match any entry in this
file, then its priority will be determined by its TOS field. The default
mapping is as follows but can be changed by setting the TC_PRIOMAP option
in <ulink url="shorewall.conf.html">shorewall.conf</ulink>(5).</para>
<programlisting>TOS Bits Means Linux Priority BAND
------------------------------------------------------------
0x0 0 Normal Service 0 Best Effort 2
0x2 1 Minimize Monetary Cost 1 Filler 3
0x4 2 Maximize Reliability 0 Best Effort 2
0x6 3 mmc+mr 0 Best Effort 2
0x8 4 Maximize Throughput 2 Bulk 3
0xa 5 mmc+mt 2 Bulk 3
0xc 6 mr+mt 2 Bulk 3
0xe 7 mmc+mr+mt 2 Bulk 3
0x10 8 Minimize Delay 6 Interactive 1
0x12 9 mmc+md 6 Interactive 1
0x14 10 mr+md 6 Interactive 1
0x16 11 mmc+mr+md 6 Interactive 1
0x18 12 mt+md 4 Int. Bulk 2
0x1a 13 mmc+mt+md 4 Int. Bulk 2
0x1c 14 mr+mt+md 4 Int. Bulk 2
0x1e 15 mmc+mr+mt+md 4 Int. Bulk 2</programlisting>
<para>The columns in the file are as follows.</para>
<variablelist>
<varlistentry>
<term><emphasis role="bold">BAND</emphasis> - {<emphasis
role="bold">1</emphasis>|<emphasis role="bold">2</emphasis>|<emphasis
role="bold">3</emphasis>}</term>
<listitem>
<para>Classifies matching traffic as High Priority (1), Medium
Priority (2) or Low Priority (3). For those interfaces listed in
<ulink
url="shorewall-tcinterfaces.html">shorewall-tcinterfaces</ulink>(5),
Priority 2 traffic will be deferred so long and there is Priority 1
traffic queued and Priority 3 traffic will be deferred so long as
there is Priority 1 or Priority 2 traffic to send.</para>
</listitem>
</varlistentry>
<varlistentry>
<term><emphasis role="bold">PROTO</emphasis> -
<replaceable>protocol</replaceable></term>
<listitem>
<para>Optional. The name or number of an IPv4
<replaceable>protocol</replaceable>.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>PORT(S) - <replaceable>port</replaceable> [,...]</term>
<listitem>
<para>Optional. May only be given if the the PROTO is TCP (6), UDP
(17), DCCP (33), SCTP (132) or UDPLITE (136). A list of one or more
port numbers or service names from /etc/services. Port ranges of the
form
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<replaceable>lowport</replaceable>:<replaceable>highport</replaceable>
may also be included.</para>
</listitem>
</varlistentry>
<varlistentry>
<term>ADDRESS - [<replaceable>address</replaceable>]</term>
<listitem>
<para>Optional. The IP or MAC address that the traffic originated
from. MAC addresses must be given in Shorewall format. If this
column contains an address, then the PROTO, PORT(S) and INTERFACE
column must be empty ("-").</para>
</listitem>
</varlistentry>
<varlistentry>
<term>INTERFACE - [<replaceable>interface</replaceable>]</term>
<listitem>
<para>Optional. The logical name of an
<replaceable>interface</replaceable> that traffic arrives from. If
given, the PROTO, PORT(S) and ADDRESS columns must be empty
("-").</para>
<note>
<para>INTERFACE classification of packets occurs before
classification by PROTO/PORT(S)/ADDRESS. So it is highly
recommended to place entries that specify INTERFACE at the top of
the file so that the rule about <emphasis>last entry
matches</emphasis> is preserved.</para>
</note>
</listitem>
</varlistentry>
<varlistentry>
<term><emphasis role="bold">HELPER</emphasis> -
[<replaceable>helper</replaceable>]</term>
<listitem>
<para>Optional. Names a Netfiler protocol helper module such as ftp,
sip, amanda, etc. A packet will match if it was accepted by the
named helper module. You can also append "-" and a port number to
the helper module name (e.g., ftp-21) to specify the port number
that the original connection was made on.</para>
</listitem>
</varlistentry>
</variablelist>
</refsect1>
<refsect1>
<title>FILES</title>
<para>/etc/shorewall/tcpri</para>
</refsect1>
<refsect1>
<title>See ALSO</title>
<para><ulink
url="http://shorewall.net/configuration_file_basics.htm#Pairs">http://shorewall.net/configuration_file_basics.htm#Pairs</ulink></para>
<para>prio(8), shorewall(8), shorewall-accounting(5),
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shorewall-actions(5), shorewall-blacklist(5), shorewall-hosts(5),
shorewall_interfaces(5), shorewall-ipsets(5), shorewall-maclist(5),
shorewall-masq(5), shorewall-nat(5), shorewall-netmap(5),
shorewall-params(5), shorewall-policy(5), shorewall-providers(5),
shorewall-proxyarp(5), shorewall-rtrules(5),
shorewall-routestopped(5), shorewall-rules(5), shorewall.conf(5),
shorewall-secmarks(5), shorewall-tcclasses(5), shorewall-tcdevices(5),
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shorewall-tcrules(5), shorewall-tos(5), shorewall-tunnels(5),
shorewall-zones(5)</para>
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</refsect1>
</refentry>