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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
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<meta http-equiv="Content-Type" content="text/html; charset=windows-1252">
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<title>Shorewall 1.2 Errata</title>
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<meta name="GENERATOR" content="Microsoft FrontPage 5.0">
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<meta name="ProgId" content="FrontPage.Editor.Document">
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</head>
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<body>
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<table border="0" cellpadding="0" cellspacing="0" style="border-collapse: collapse" bordercolor="#111111" width="100%" id="AutoNumber1" height="90" bgcolor="#400169">
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<tr>
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<td width="100%">
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<h1 align="center"><font color="#FFFFFF">Shorewall 1.2 Errata</font></h1>
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</td>
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</tr>
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</table>
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<p align="center">
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<font face="Century Gothic, Arial, Helvetica">
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<b><u>IMPORTANT</u></b></font></p>
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<p align="center">
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<b><u>If you use a Windows system to download a corrected script, be sure to
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run the script through <a href="http://www.megaloman.com/%7Ehany/software/hd2u/">
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dos2unix</a>
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after you have moved it to your Linux system.</u></b></p>
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<p align="center">
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<u><b>When the instructions say to install a corrected firewall script in
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/etc/shorewall/firewall, use the 'cp' (or 'scp') utility to overwrite the
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existing file. DO NOT REMOVE OR RENAME THE OLD /etc/shorewall/firewall
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before you do that. /etc/shorewall/firewall is a symbolic link that points
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to the 'shorewall' file used by your system initialization scripts to
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start Shorewall during boot and it is that file that must be overwritten
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with the corrected script. </b></u></p>
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<ul>
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<li>
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<h3 align="Left"><font color="#660066">
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<a href="errata_1.htm">
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Problems in Version 1.1</a></font></h3>
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</li>
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<li>
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<h3 align="Left"><a href="#V1.2">Problems in Version 1.2</a></h3>
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</li>
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<li>
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<h3 align="Left"><font color="#660066"><a href="#iptables">
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Problem with iptables version 1.2.3</a></font></h3>
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</li>
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<li>
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<h3 align="Left"><a href="#Debug">Problems with kernel 2.4.18 and
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RedHat iptables</a></h3>
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</li>
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</ul>
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<hr>
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<h3 align="Left"><a name="V1.2"></a>Problems in Version 1.2</h3>
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<h3 align="Left">Version 1.2.13</h3>
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<ul>
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<li>
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<p align="Left">Some users have reported problems installing the RPM
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on SuSE 7.3 where rpm reports a conflict with kernel <= 2.2 even
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though a 2.4 kernel RPM is installed. To get around this problem, use
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the --nodeps option to rpm (e.g., "rpm -ivh --nodeps
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shorewall-1.2-13.noarch.rpm").<br>
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<br>
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The problem stems from the fact that SuSE does not
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include a package named "kernel" but rather has a number of packages
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that provide the virtual package "kernel". Since virtual packages have
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no version associated with them, a conflict results. Since the
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workaround is simple, I don't intend to change the Shorewall package.</p>
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</li>
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<li>
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<p align="Left">Shorewall accepts invalid rules of the form:<br>
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<br>
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<font face="Courier">ACCEPT <src> <dest>:<ip addr> all <port number> -
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<original ip address><br>
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<br>
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</font>The <port number> is ignored with the result that <u>all</u>
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connection requests from the <src> zone whose original destination IP
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address matches the last column are forwarded to the <dest> zone, IP
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address <ip addr>.
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.13/firewall">
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This corrected firewall script</a> correctly generates an error when
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such a rule is encountered.</p>
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</li>
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</ul>
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<h3 align="Left">Version 1.2.11</h3>
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<ul>
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<li>
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<p align="Left">The 'try' command is broken.</li>
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<li>
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<p align="Left">The usage text printed by the shorewall utility
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doesn't show the optional timeout for the 'try' command.</li>
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</ul>
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<p align="Left">Both problems are corrected by
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.11/shorewall">
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this new version of /sbin/shorewall</a>.</p>
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<h3 align="Left">Sample Configurations:</h3>
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<ul>
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<li>
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<p align="Left">There have been several problems with SSH, DNS and
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ping in the two- and three-interface examples. Before reporting
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problems with these services, please verify that you have the latest
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version of the appropriate sample 'rules' file.</li>
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</ul>
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<h3 align="Left">All Versions through 1.2.10</h3>
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<ul>
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<li>
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<p align="Left">The <a href="PPTP.htm#ServerFW">documentation for
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running PoPToP on the firewall system</a> contained an incorrect entry
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in the /etc/shorewall/hosts file. The corrected entry (underlined) is
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shown here:</li>
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</ul>
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<blockquote>
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<blockquote>
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<table border="2">
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<tr>
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<td><b>ZONE</b></td>
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<td><b>HOST(S)</b></td>
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<td><b>OPTIONS</b></td>
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</tr>
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<tr>
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<td>loc</td>
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<td><u>eth2</u>:192.168.1.0/24</td>
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<td>routestopped</td>
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</tr>
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<tr>
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<td>loc</td>
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<td>ppp+:192.168.1.0/24</td>
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<td> </td>
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</tr>
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</table>
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</blockquote>
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</blockquote>
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<h3 align="Left">All Versions through 1.2.8</h3>
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<ul>
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<li>
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<p align="Left">The shorewall.conf file and the documentation
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incorrectly refer to a parameter in /etc/shorewall/shorewall.conf
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called LOCKFILE; the correct name for the parameter is SUBSYSLOCK (<a href="Documentation.htm#Conf">see
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the corrected online documentation</a>). Users of the rpm should
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change the name (and possibly the value) of this parameter so that
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Shorewall interacts properly with the SysV init scripts. The
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documentation on this web site has been corrected and
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.8/shorewall.conf">
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here's a corrected version of shorewall.conf</a>.</p>
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</li>
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<li>
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<p align="Left">The documentation indicates that a comma-separated
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list of IP/subnet addresses may appear in an entry in the hosts file.
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This is not the case; if you want to specify multiple addresses for a
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zone, you need to have a separate entry for each address.</p>
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</li>
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</ul>
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<h3 align="Left">Version 1.2.7</h3>
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<p align="Left">Version 1.2.7 is quite broken -- please install 1.2.8</p>
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<p>If you have installed and started version 1.2.7 then before trying
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to restart under 1.2.8:</p>
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<ol>
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<li>Look at your /etc/shorewall/shorewall.conf file and note the directory
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named in the STATEDIR variable. If that variable is empty, assume
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/var/state/shorewall.</li>
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<li>Remove the file 'lock' in the directory determined in step 1.</li>
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</ol>
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<p>You may now restart using 1.2.8.</p>
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<h3 align="Left">Version 1.2.6</h3>
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<ul>
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<li>
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<p align="Left">GRE and IPIP tunnels are broken.</li>
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<li>
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<p align="Left">The following rule results in a start error:<br>
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<br>
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ACCEPT z1 z2
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icmp</li>
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</ul>
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<p align="Left">To correct the above problems, install
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.6/firewall">this
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corrected firewall script</a> in /etc/shorewall/firewall..<h3 align="Left">Version 1.2.5</h3>
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<ul>
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<li>
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<p align="Left">The new ADDRESS column in /etc/shorewall/masq cannot
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contain a $-variable name.</li>
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<li>
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2003-03-23 19:47:54 +01:00
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<p align="Left">Errors result if $FW appears in the
|
2002-08-13 22:45:21 +02:00
|
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|
/etc/shorewall/policy file.</li>
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<li>
|
2003-03-23 19:47:54 +01:00
|
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|
<p align="Left">Using Blacklisting without setting BLACKLIST_LOGLEVEL
|
2002-08-13 22:45:21 +02:00
|
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|
results in an error at start time.</li>
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|
</ul>
|
2003-03-23 19:47:54 +01:00
|
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|
2002-08-13 22:45:21 +02:00
|
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<p align="Left">To correct the above problems, install
|
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.5/firewall">this
|
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corrected firewall script</a> in /etc/shorewall/firewall.<p align="Left"> <ul>
|
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|
<li>
|
2003-03-23 19:47:54 +01:00
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<p align="Left">The /sbin/shorewall script produces error messages
|
2002-08-13 22:45:21 +02:00
|
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saying that 'mygrep' cannot be found.
|
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<a href="http://www.shorewall.net/pub/shorewall/errata/1.2.5/shorewall">
|
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Here is the correct version of /sbin/shorewall.</a></li>
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</ul>
|
2003-03-23 19:47:54 +01:00
|
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2002-08-13 22:45:21 +02:00
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<h3 align="Left">Version 1.2.4</h3>
|
2003-03-23 19:47:54 +01:00
|
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2002-08-13 22:45:21 +02:00
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<ul>
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<li><p align="Left">This version will not install "out of the box" without
|
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modification. Before attempting to start the
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firewall, please change the STATEDIR in /etc/shorewall/shorewall.conf to
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|
refer to /var/lib/shorewall. This only applies to fresh installations -- if
|
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you are upgrading from a previous version of Shorewall, version 1.2.4 will
|
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work without modification.</li>
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</ul>
|
2003-03-23 19:47:54 +01:00
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2002-08-13 22:45:21 +02:00
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<h3 align="Left">Version 1.2.3</h3>
|
2003-03-23 19:47:54 +01:00
|
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2002-08-13 22:45:21 +02:00
|
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<ul>
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<li>
|
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<p align="Left">When BLACKLIST_LOGLEVEL is set, packets from blacklisted
|
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hosts aren't logged. Install <a href="http://www.shorewall.net/pub/shorewall/errata/1.2.3/firewall">this
|
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|
corrected firewall script</a> in /etc/shorewall/firewall.</li>
|
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|
</ul>
|
|
|
|
|
|
<blockquote>
|
2003-03-23 19:47:54 +01:00
|
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|
2002-08-13 22:45:21 +02:00
|
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<p>Alternatively, edit /etc/shorewall/firewall and change line 1564 from:</p>
|
2003-03-23 19:47:54 +01:00
|
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|
2002-08-13 22:45:21 +02:00
|
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|
</blockquote>
|
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<pre> run_iptables -A blacklst -d $addr -j LOG $LOGPARAMS --log-prefix \</pre>
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|
<blockquote>
|
2003-03-23 19:47:54 +01:00
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|
2002-08-13 22:45:21 +02:00
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<p>to</p>
|
2003-03-23 19:47:54 +01:00
|
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|
2002-08-13 22:45:21 +02:00
|
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|
</blockquote>
|
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<pre> run_iptables -A blacklst -s $addr -j LOG $LOGPARAMS --log-prefix \</pre>
|
2003-03-23 19:47:54 +01:00
|
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|
2002-08-13 22:45:21 +02:00
|
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|
<h3 align="Left">Version 1.2.2</h3>
|
2003-03-23 19:47:54 +01:00
|
|
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|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<ul>
|
|
|
|
|
|
<li>The "shorewall status" command hangs after
|
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|
|
|
it displays the chain information. <a href="pub/shorewall/errata/1.2.2/shorewall">Here's
|
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|
|
a corrected /sbin/shorewall.</a> if you want to simply modify your copy of
|
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|
|
|
/sbin/shorewall, then at line 445 change this:</li>
|
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|
|
</ul>
|
2003-03-23 19:47:54 +01:00
|
|
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|
2002-08-13 22:45:21 +02:00
|
|
|
|
<div align="left">
|
2003-03-23 19:47:54 +01:00
|
|
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|
2002-08-13 22:45:21 +02:00
|
|
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|
<pre align="Left"> status)
|
|
|
|
|
|
clear</pre>
|
2003-03-23 19:47:54 +01:00
|
|
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|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
</div>
|
|
|
|
|
|
<blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left">to this:</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
</blockquote>
|
|
|
|
|
|
<div align="left">
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<pre align="Left"> status)
|
|
|
|
|
|
get_config
|
|
|
|
|
|
clear</pre>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
</div>
|
|
|
|
|
|
<ul>
|
|
|
|
|
|
<li>The "shorewall monitor" command
|
|
|
|
|
|
doesn't show the icmpdef chain - <a href="pub/shorewall/errata/1.2.2/shorewall">this
|
|
|
|
|
|
corrected /sbin/shorewall</a> fixes that problem as well as the status
|
|
|
|
|
|
problem described above.</li>
|
|
|
|
|
|
</ul>
|
|
|
|
|
|
<ul>
|
|
|
|
|
|
<li>In all 1.2.x versions, the 'CLIENT PORT(S)'
|
|
|
|
|
|
column in /etc/shorewall/tcrules is ignored. This is corrected in <a href="/pub/shorewall/errata/1.2.2/firewall">this
|
|
|
|
|
|
updated firewall script</a>. Place the script in /etc/shorewall/firewall. Thanks to Shingo Takeda for
|
|
|
|
|
|
spotting this bug.</li>
|
|
|
|
|
|
</ul>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<h3 align="Left">Version 1.2.1</h3>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<ul>
|
|
|
|
|
|
<li>The new <i>logunclean </i>interface option is not
|
|
|
|
|
|
described in the help text in /etc/shorewall/interfaces. An <a href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.2.1/interfaces">updated
|
|
|
|
|
|
interfaces file</a> is available.</li>
|
|
|
|
|
|
<li>When REJECT is specified in a TCP rule, Shorewall
|
|
|
|
|
|
correctly replies with a TCP RST packet. Previous versions of the
|
|
|
|
|
|
firewall script are broken in the case of a REJECT policy, however; in
|
|
|
|
|
|
REJECT policy chains, all requests are currently replied to with an
|
|
|
|
|
|
ICMP port-unreachable packet. <a href="http://www.shorewall.net/pub/shorewall/errata/1.2.1/firewall">This
|
2003-03-23 19:47:54 +01:00
|
|
|
|
corrected firewall script</a> replies to TCP requests with TCP RST in
|
2002-08-13 22:45:21 +02:00
|
|
|
|
REJECT policy chains. Place the script in /etc/shorewall/firewall.</li>
|
|
|
|
|
|
</ul>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<h3 align="Left">Version 1.2.0</h3>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left"><b>Note: </b>If you are upgrading from one of the Beta
|
|
|
|
|
|
RPMs to 1.2.0, you must use the "--oldpackage" option to rpm
|
|
|
|
|
|
(e.g., rpm -Uvh --oldpackage shorewall-1.2-0.noarch.rpm).</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left">The tunnel script released in version 1.2.0 contained
|
|
|
|
|
|
errors -- a <a href="ftp://ftp.shorewall.net/pub/shorewall/errata/1.2.0/tunnel">corrected
|
|
|
|
|
|
script</a> is available.</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
</blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<hr>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<h3 align="Left"><a name="iptables"></a><font color="#660066">
|
|
|
|
|
|
Problem with iptables version 1.2.3</font></h3>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left">There are a couple of serious bugs in iptables 1.2.3 that
|
2003-03-23 19:47:54 +01:00
|
|
|
|
prevent it from working with Shorewall. Regrettably,
|
2002-08-13 22:45:21 +02:00
|
|
|
|
RedHat released this buggy iptables in RedHat 7.2. </p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left"> I have built a <a href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3-3.i386.rpm">
|
|
|
|
|
|
corrected 1.2.3 rpm which you can download here</a> and I have also built
|
|
|
|
|
|
an <a href="ftp://ftp.shorewall.net/pub/shorewall/iptables-1.2.4-1.i386.rpm">
|
2003-03-23 19:47:54 +01:00
|
|
|
|
iptables-1.2.4 rpm which you can download here</a>. If
|
|
|
|
|
|
you are currently running RedHat 7.1, you can install either of these RPMs
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<b><u>before</u> </b>you upgrade to RedHat 7.2.</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left"><font face="Century Gothic, Arial, Helvetica" color="#FF6633"><b>Update
|
|
|
|
|
|
11/9/2001: </b></font>RedHat has
|
|
|
|
|
|
released an iptables-1.2.4 RPM of their own which you can download from<font face="Century Gothic, Arial, Helvetica" color="#FF6633">
|
|
|
|
|
|
<a href="http://www.redhat.com/support/errata/RHSA-2001-144.html">http://www.redhat.com/support/errata/RHSA-2001-144.html</a>.
|
|
|
|
|
|
</font>I have installed this RPM
|
|
|
|
|
|
on my firewall and it works fine.</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left">If you
|
|
|
|
|
|
would like to patch iptables 1.2.3 yourself, the patches are available
|
|
|
|
|
|
for download. This <a href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/loglevel.patch">patch</a>
|
|
|
|
|
|
which corrects a problem with parsing of the --log-level specification while
|
|
|
|
|
|
this <a href="ftp://ftp.shorewall.net/pub/shorewall/errata/iptables-1.2.3/tos.patch">patch</a>
|
|
|
|
|
|
corrects a problem in handling the TOS target.</p>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p align="Left">To install one of the above patches:</p>
|
|
|
|
|
|
<ul>
|
|
|
|
|
|
<li>cd iptables-1.2.3/extensions</li>
|
|
|
|
|
|
<li>patch -p0 < <i>the-patch-file</i></li>
|
|
|
|
|
|
</ul>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
</blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
|
|
|
|
|
<h3><a name="Debug"></a>Problems with kernel 2.4.18
|
2002-08-13 22:45:21 +02:00
|
|
|
|
and RedHat iptables</h3>
|
|
|
|
|
|
<blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
<p>Users who use RedHat iptables RPMs and who upgrade to kernel 2.4.18 may
|
2002-08-13 22:45:21 +02:00
|
|
|
|
experience the following:</p>
|
|
|
|
|
|
<blockquote>
|
|
|
|
|
|
<pre># shorewall start
|
|
|
|
|
|
Processing /etc/shorewall/shorewall.conf ...
|
|
|
|
|
|
Processing /etc/shorewall/params ...
|
|
|
|
|
|
Starting Shorewall...
|
|
|
|
|
|
Loading Modules...
|
|
|
|
|
|
Initializing...
|
|
|
|
|
|
Determining Zones...
|
|
|
|
|
|
Zones: net
|
|
|
|
|
|
Validating interfaces file...
|
|
|
|
|
|
Validating hosts file...
|
|
|
|
|
|
Determining Hosts in Zones...
|
|
|
|
|
|
Net Zone: eth0:0.0.0.0/0
|
|
|
|
|
|
iptables: libiptc/libip4tc.c:380: do_check: Assertion
|
|
|
|
|
|
`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.
|
|
|
|
|
|
Aborted (core dumped)
|
|
|
|
|
|
iptables: libiptc/libip4tc.c:380: do_check: Assertion
|
|
|
|
|
|
`h->info.valid_hooks == (1 << 0 | 1 << 3)' failed.
|
|
|
|
|
|
Aborted (core dumped)
|
|
|
|
|
|
</pre>
|
|
|
|
|
|
</blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
<p>The RedHat iptables RPM is compiled with debugging enabled but the
|
|
|
|
|
|
user-space debugging code was not updated to reflect recent changes in the
|
2002-08-13 22:45:21 +02:00
|
|
|
|
Netfilter 'mangle' table. You can correct the problem by installing
|
|
|
|
|
|
<a href="http://www.shorewall.net/pub/shorewall/iptables-1.2.5-1.i386.rpm">
|
2003-03-23 19:47:54 +01:00
|
|
|
|
this iptables RPM</a>. If you are already running a 1.2.5 version of
|
|
|
|
|
|
iptables, you will need to specify the --oldpackage option to rpm (e.g.,
|
2002-08-13 22:45:21 +02:00
|
|
|
|
"iptables -Uvh --oldpackage iptables-1.2.5-1.i386.rpm").</p>
|
|
|
|
|
|
</blockquote>
|
2003-03-23 19:47:54 +01:00
|
|
|
|
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<p><font face="Century Gothic, Arial, Helvetica"><font size="2">
|
|
|
|
|
|
Last updated 5/24/2002 - </font><font size="2">
|
|
|
|
|
|
<a href="support.htm">Tom Eastep</a></font>
|
|
|
|
|
|
</font></p>
|
|
|
|
|
|
|
2003-03-23 19:47:54 +01:00
|
|
|
|
<p><font face="Trebuchet MS"><a href="copyright.htm"><font size="2">Copyright</font>
|
2002-08-13 22:45:21 +02:00
|
|
|
|
<20> <font size="2">2001, 2002 Thomas M. Eastep.</font></a></font></p>
|
|
|
|
|
|
|
|
|
|
|
|
</body>
|
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|
</html>
|
