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| <!DOCTYPE HTML PUBLIC "-//FreeBSD//DTD HTML 4.01 Transitional-Based Extension//EN" [
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| <!ENTITY base CDATA "..">
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| <!ENTITY date "$FreeBSD: www/en/projects/summerofcode-2008.sgml,v 1.3 2008/09/18 08:53:11 murray Exp $">
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| <!ENTITY title "FreeBSD Summer of Code 2008">
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| <!ENTITY % navinclude.developers "INCLUDE">
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| <!ENTITY % developers SYSTEM "../developers.sgml"> %developers;
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| ]>
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| 
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| <html>
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| &header;
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| 
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| <p>The FreeBSD Project is proud to have taken part in the Google <a
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|   href="http://code.google.com/soc">Summer of Code
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|   2008</a>.  We received more high quality applications this year than
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|   ever before.  In the end it was a very tough decision to narrow it
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|   down to the 21 students selected for funding by Google.  
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|   These student projects included security research,
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|   improved installation tools, new utilities, and more.  Many of the
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|   students have continued working on their FreeBSD projects even after
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|   the official close of the program.</p>
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| 
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| <p>We are happy to report that the 19 students listed below
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|   completed the program successfully.</p>
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| 
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| <p>Information about the student projects is available from our <a
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|   href="http://wiki.freebsd.org/SummerOfCode2008">Summer of Code
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|   wiki</a> and all of the code is checked into <a
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|   href="http://perforce.freebsd.org/depotTreeBrowser.cgi?FSPC=//depot/projects/soc2008/">Perforce</a>.
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|   The summaries below were submitted by the individual students and
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|   their mentors with minor editing for consistency.</p>
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| 
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| <a name="students"></a>
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| <h2>2008 Student Projects</h2>
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| 
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| <ul>
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|   <li>
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|     <strong>Project:</strong> Implementation of MPLS in FreeBSD<br>
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|     <strong>Student:</strong> Ryan French<br>
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|     <strong>Mentor:</strong> &a.andre;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>MPLS is a networking protocol used for routing information
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|       quickly and efficiently. It is used extensively in the
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|       internet's backbone networks.  Over the course of the program,
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|       code has been ported to FreeBSD from the OpendBSD/NetBSD
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|       operating systems. Basic functionality of sending and receiving
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|       packets was the main goal of the project, but unfortunately this
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|       was not acheived. It is very close to having this functionality,
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|       but there are a few minor bugs preventing the code from
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|       integrating fully with the FreeBSD networking stack.</p>
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| 
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|     <p>This project will continue to be worked on until sending,
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|       receiving, label swapping, tunnels, and the LDP daemon has been
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|       successfully implemented.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> No.</li>
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| 
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|   <li>
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|     <strong>Project:</strong> TCP/IP regression test suite (tcptest)<br>
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|     <strong>Student:</strong> Victor Hugo Bilouro<br>
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|     <strong>Mentor:</strong> &a.gnn;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>As a testing tool, it can perform regression, protocol
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|       conformance, and fuzz tests. The tool may also be employed as an
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|       aid to protocol developers and both testing and debugging of
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|       firewalls/routers.</p>
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| 
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|     <p>It is built on top of PCS(Packet Construction Set) "PCS is a set
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|       of Python modules and objects that make building network
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|       protocol code easier for the protocol developer. PCS enables
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|       testing at OSI layers 3, 4, and 5."</p>
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| 
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|     <p>Tcptest mainly is a python module and one script for each test
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|       covered (more then one per script often) The module count with
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|       methods acting as fasteners, doing things like (a)three way
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|       handshake, (b)active/passive close and (c)several createXX and
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|       assertXX, where XX=(ip, tcp, rst, urg, fin, syn, psh, so on...)
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|       As the tests are being created, the number of 'fasteners' are
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|       growing, turning each moment easier to create new tests.</p>
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| 
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|     <p>Use of small tests. So we can cover a wide range of traffics,
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|       events and transitions predetermined separately. The development
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|       would be like a protocol, but without covering all possible
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|       events and transitions, only traffic previously
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|       determined. Instead of targeting a TCP Finite State Machine
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|       (FSM) like the implementation of TCP/IP protocols, the
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|       development will be based towards flow of packets, where traffic
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|       is composed of packets that are sent and received in a
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|       previously registered way.</p>
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| 
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|     Links:
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|     <a href="http://wiki.freebsd.org/VictorBilouro/TCP-IP_regression_test_suite">project wiki</a>
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|     <a href="http://perforce.freebsd.org/depotTreeBrowser.cgi?FSPC=//depot/projects/soc2008/bilouro_tcptest/src">&os; Perforce project repository</a>
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|     <a href="http://code.google.com/p/tcptest/">source code download</a>
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|     <a href="http://bilouro.com/tcptest">source code documentation</a>
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|     <a href="http://pcs.sf.net">Packet Construction Set</a>
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Porting Open Solaris Dtrace Toolkit to FreeBSD<br>
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|     <strong>Student:</strong> Liqun Li<br>
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|     <strong>Mentor:</strong> &a.jb;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>Sun Open Solaris Dtrace is pretty useful feature.  Users can find
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|       performance bottlenecks with Dtrace in real production
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|       environment. Since many probes implemented in Open Solaris are
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|       not supported in FreeBSD, the Open Solaris Dtrace Toolkit should be
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|       ported to &os;. Its main job is to find whether a given probe is supported by
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|       FreeBSD, if so, find it; if not, develop one to support this
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|       function. This summer, at first, I went throught all DTK script
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|       commands, found some of them work directly. But most do
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|       not. Under my mentor John Birrell careful help, I retrieved the
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|       respective FreeBSD kernel variables, and ended up making
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|       system/uname.d work. In addition, I tried to make sar-c.d work
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|       under FreeBSD. Since we need to investigate in Sun Open
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|       Solaris Kernel how Open Solaris defines the probe and
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|       what probes it needs, this work is realy time consuming, and not
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|       done yet. From this project, I got to know much about FreeBSD
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|       kernel and Dtrace probes. I found kernel hacking/coding pretty
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|       interesting.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> not decided</li>
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| 
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|   <li>
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|     <strong>Project:</strong> Adding .db support to pkg_tools --> pkg_improved<br>
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|     <strong>Student:</strong> Anders Nore<br>
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|     <strong>Mentor:</strong> &a.flz;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>This project is a replication of the pkg_install tools with
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|       several new features and speed improvements due to the caching
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|       of some package-information to a B-Tree Berkeley DB file. Some
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|       of the new features is the adding of installtime to the
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|       installed packages +CONTENTS file, human-readable size-output in
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|       pkg_info(1), progress indication to pkg_add's remote
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|       option. Installtime range searches with pkg_info(1) and
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|       pkg_delete(1) similar to that of version search is now available
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|       using the -M option.</p>
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| 
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|     <p>A new tool pkg_convert(1), caches some parts of the existing
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|       /var/db/pkg/ flat database into a Berkeley DB file, and the
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|       tools check for this file and uses it for speed improvements if
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|       it is available and updates it according to
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|       pkg_{add|delete}'s. You can also use pkg_convert(1) to view the
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|       entries in the cache. The tools will give you an indication if
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|       the database is corrupt, and it is fully recoverable by using
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|       pkg_convert(1).</p>
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| 
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|     <p>Two bugs in the existing pkg_tools have also been discovered
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|       and fixed, everything is ofcourse backwards-compatible with the
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|       older/original pkg_install tools.</p></li>
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| 
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|   <li>
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|     <strong>Project:</strong> Porting BSD-licensed text-processing tools from OpenBSD<br>
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|     <strong>Student:</strong> Gabor Kovesdan<br>
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|     <strong>Mentor:</strong> Max Khon<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>At the moment, BSD grep seems to be ready and highly compatible
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|       with the GNU version. However, there are differences in the
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|       regex handling, which is a result of the different
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|       interpretations, that the different regex libraries use and thus
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|       it is not really possible to fix at the level of grep. As for
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|       diff, some progress has been made, but some important features
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|       are still missing. The sort utility seemed to be badly
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|       constructed concerning the wide character support and the
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|       overall implementation. Because of these difficulties, the
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|       efforts were prioritized for grep and diff. Probably sort needs
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|       a complete rewrite or at least an extreme amount of
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|       modifications.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> If we can accept the
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|       regex differencies in grep, it is ready to enter SVN after some
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|       thorough testing. As for diff and sort, they can be installed
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|       via the Ports Collection.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Multibyte collation support<br>
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|     <strong>Student:</strong> Konrad Jankowski<br>
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|     <strong>Mentor:</strong> &a.dds;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>Collation is what allows for current language/encoding correct
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|       sorting/ordering of strings. This project aimed to add proper
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|       collation in UTF-8 encodings for all languages for FreeBSD. This
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|       summer I have accomplished:</p>
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| 
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|     <ul>
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|       <li>imported data from the Unicode Consortium: POSIX locale files
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|        and regression test data</li>
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|       <li>written converter scripts to extract collation data from this
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|        files</li>
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|       <li>ported Apple's version of colldef (which is our version, but
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|        much extended by them)</li>
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|       <li>extended the colldef even more, to work on collation data from
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|        the Unicode Consortium</li>
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|       <li>added some performance improvements, the biggest one not used
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|        by default now (no time to test yet) - reading the charmap only
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|        once for all languages</li>
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|       <li>ported Apple version of strcoll, wcscoll, strxfrm, wcsxfrm and
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|        locale/collate.c, taking out xlocale (rationale on wiki)</li>
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|       <li>Written regression test scripts. It appeared that Apple's code
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|        doesn't full Unicode Collation Algorithm - the part which deals
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|        with expansions. It is needed for half of languages to pass the
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|        more advanced regression tests.</li>
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|       <li>for last few days I am working on implementing expansions, I will
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|        not rest until they work</li>
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|       <li>I was not able to start writing manpages and create a megapatch
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|        agains HEAD, I'll do that when the algorithm is 100% correct
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|        for all the languages.</li>
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|     </ul>
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| 
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|     <p>Current informatin will be available on my wiki:
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|     http://wiki.freebsd.org/KonradJankowski/Collation</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> After finishing expansion support and
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| 	  cleanup.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> VM Algorithm Improvement<br>
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|     <strong>Student:</strong> Mayur Shardul<br>
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|     <strong>Mentor:</strong> &a.jeff;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>A new data structure, viz. radix tree, was implemented and used
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|       for management of the resident pages. The objective is efficient
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|       use of memory and faster performance. The biggest challenge was
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|       to service insert requests on the data structure without
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|       blocking. Because of this constraint the memory allocation
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|       failures were not acceptable, to solve the problem the required
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|       memory was allocated at the boot time. Both the data structures
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|       were used in parallel to check the correctness and we also
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|       benchmarked the data structures and found that radix trees gave
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|       much better performance over splay trees.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> We will investigate some more approaches
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|     to handle allocation failures before the new data structure goes
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|     in CVS.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> TCP anomaly detector<br>
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|     <strong>Student:</strong> Rui Paulo<br>
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|     <strong>Mentor:</strong> &a.andre;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>The TCP Anomaly Detector (tcpad, for short) project went
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|       reasonably well. I am currently tracking some bugs and lowering
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|       the number of false positives.</p>
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| 
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|     <p>tcpad tries to monitor TCP connections and detect
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|       non-conformant hosts. It does this by sniffing packets on the
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|       wire and creating, what I would like to call, a virtual TCP
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|       stack on each end. When an error is detected, tcpad creates a
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|       pcap file with all the packets exchanged between the two hosts
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|       and the state of each virtual TCP stack.</p>
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| 
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|     <p>tcpad is still being developed, so expect it to "detect" dozens
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|       of "problems" after running for some minutes.</p>
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| 
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|     <p>I was a bit late developing results because the SoC began
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|       before my exams did (I was still having classes), but now, that
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|       "damage" is partly fixed. ;-) Overall, this SoC was a really
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|       interesting learning experience. I must say that my TCP
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|       knowledge has increased a few points. :-)</p>
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| 
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|     <p>Andre Oppermann is my mentor. I blogged a bit about this
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|       project at <a href="http://blogs.freebsdish.org/rpaulo/">my blog</a>.
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|       The wiki page is located <a
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| 	href="http://wiki.freebsd.org/RuiPaulo/TCPAnomaly">here</a>.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> No.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> FreeBSD auditing system testing<br>
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|     <strong>Student:</strong> Vincenzo Iozzo<br>
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|     <strong>Mentor:</strong> Attilio Rao<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>The project was focused on testing the audit system. The first
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|       part of the project consisted of writing a patch for
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|       /dev/auditpipe in order to preselect events by process' pid. The
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|       second half was focused on creating a testing framework for
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|       audit. Some auxiliary functions and modules were written. What is
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|       missing: - More abstraction in the framework - More tests for
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|       events</p>
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Dynamic memory allocation for dirhash in UFS2<br>
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|     <strong>Student:</strong> Nick Barkas<br>
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|     <strong>Mentor:</strong> &a.dwmalone;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>Modified dirhash code in perforce is now able to free up memory
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|       used by older dirhashes when the VM system invokes vm_lowmem
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|       events. This will allow the default dirhash_maxmem value to be
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|       increased, improving performance on large directory lookups when
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|       there is memory to spare on they system. There are versions of
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|       the low memory event handling code for both -CURRENT and
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|       7-STABLE. A number of tests have been run showing the new event
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|       handler seems to work properly.</p>
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| 
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|     <p>I intend to do further testing and benchmarking to find the
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|       best default values to use for vfs.ufs.dirhash_reclaimage (the
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|       number of seconds a dirhash can sit unused before the dirhash
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|       low memeory event handler will unconditionally delete it) and
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|       the minimum percentage of memory that will be freed upon
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|       vm_lowmem events even if there are not enough hashes older than
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|       dirhash_reclaimage (currently this is hard coded to 10%). I
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|       would also like to add some code to choose a reasonable new
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|       default vfs.ufs.dirhash_maxmem value based upon the amount of
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|       memory in the system, set automatically at boot time and tunable
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|       via sysctl. Once these tweaks have been made I plan to ask for
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|       testing from more users to shake out any bugs or potential
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|       workloads where the new code may hurt overall performance.</p>
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| 
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|     <p>Current details about status are on the <a
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| 	href="http://wiki.freebsd.org/DirhashDynamicMemory">wiki</a>.</p>
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Reference implementation of the SNTP client<br>
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|     <strong>Student:</strong> Johannes Maximilian Kohn<br>
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|     <strong>Mentor:</strong> Harlan Stenn<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>A reference implementation of the SNTP client based on the
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|       latest ntpv4 document. SNTP is a lightweight client that enables
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|       admins to synchronize with NTP servers. SNTP's networking code
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|       is written protocol independent and should work with almost any
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|       protocol like IPv4 or IPv6. SNTP supports MD5 authentication to
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|       verify the authencity of the queried server.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> Not determined yet.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> NFSv4 ACLs<br>
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|     <strong>Student:</strong> Edward Tomasz Napierala<br>
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|     <strong>Mentor:</strong> &a.rwatson;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>The aim of my GSoC project was to implement NFSv4 ACLs in a
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|       similar way POSIX.1e ACLs are supported. That was done by
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|       extending user utilities (setfacl(1)/getfacl(1)), libc API and
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|       adding neccessary kernel stuff, for ACL storage and enforcement
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|       on both UFS and ZFS. Regression tests were implemented to ensure
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|       correct operation. Semantics is supposed to be identical to the
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|       one in SunOS. There is also a wrapper (distributed separately)
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|       that implements SunOS-compatible acl(2)/facl(2) API, to make
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|       porting applications like Samba easier.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> not yet
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Enhancing FreeBSD's Libarchive<br>
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|     <strong>Student:</strong> Anselm Strauss<br>
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|     <strong>Mentor:</strong> &a.kientzle;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>The idea was to work on some missing parts of
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|       Libarchive. Despite the many goals, only few of them could be
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|       implemented. So far the project contributed a ZIP writer with
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|       tests. It supports basic functionality, except compression,
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|       ZIP64 and some fancy features of the ZIP specification. Work
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|       will now continue free from GSOC. It will include finishing the
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|       ZIP writer, and working a bit on the other goals, like PAX
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|       frontend, and others.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> not yet
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Allowing for parallel builds in the FreeBSD Ports<br>
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| Collection
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|     <strong>Student:</strong> David Forsythe<br>
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|     <strong>Mentor:</strong> Mark Linimon<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>This project added locks to targets taken from bsd.port.mk that
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|       could perform conflicting operations if multiple builds were
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|       running at the same time. First, fake-pkg was modified to obtain
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|       a lock over PKG_DBDIR to prevent clobbering of the database in
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|       case more than one port tries to register at a time. Next, a
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|       lock called BASE_LOCK was added for every port to obtain at the
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|       beginning of a build. This lock is located in a ports directory,
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|       and prevents any port from being built by multiple make
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|       processes. Locks were then added for other sensitive targets,
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|       and the pkg_install tools were modified to honor locks on
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|       PKG_DBDIR.</p>
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| 
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|     <p>Once these locks were added, a new variable, FAKE_J, to take
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|       advantage of makes -j flag. This allows make to fork multiple
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|       processes to handle dependencies and fetching, without passing
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|       the -j flag onto the actual build of a port.</p>
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| 
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|     <strong>Ready to enter CVS/SVN:</strong> Probably not.
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|   </li>
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| 
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|   <li>
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|     <strong>Project:</strong> Ports license auditing infrastructure<br>
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|     <strong>Student:</strong> Alejandro Pulver<br>
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|     <strong>Mentor:</strong> &a.brooks;<br>
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| 
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|     <strong>Summary:</strong>
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| 
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|     <p>This project is about adding license support to the Ports
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|       Collection, so ports with certain licenses can be
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|       identified. The ports makefile part is functional (may need some
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|       adjustements though): definition of licenses by port, notions of
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|       permissions (sell and redistribute, for distfiles and packages)
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|       replacing NO_{PACKAGE,CDROM} and RESTRICTED, configuration
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|       (one-time, and saved; with checksum in case the license
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|       changes), verbose/diagnostic output of the internal processing
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|       logic (how it is accepted or rejected, if by the user, by
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|       default or by saved configuration), registration of license
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|       information and license itself in the package (so that both
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|       packages and ports can be searched for properties such as
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|       license types or restrictions), and more can be easily added to
 | |
|       the current code.</p>
 | |
| 
 | |
|     <p>The license database (a list of them and their properties) was
 | |
|       going to be mirrored from FOSSology: a tool to analyze software
 | |
|       licenses. We are working on getting FOSSology to automatically
 | |
|       classify ports (I've sent suggestions and patches to the
 | |
|       developers, who accepted them and provided very good
 | |
|       support). So for the moment it is not usable (at least
 | |
|       licenses/properties are defined manually, and each port is
 | |
|       marked manually to indicate its license).</p>
 | |
| 
 | |
|     <p>I will continue working on the FOSSology's port, and on the
 | |
|       missing features such as multiple licenses support (AND, OR,
 | |
|       etc). For more information see the wiki page: Ports license
 | |
|       auditing infrastructure</p>
 | |
| 
 | |
|     <strong>Ready to enter CVS/SVN:</strong> not yet
 | |
|   </li>
 | |
| 
 | |
|   <li>
 | |
|     <strong>Project:</strong> Improving layer2 filtering<br>
 | |
|     <strong>Student:</strong> Gleb Kurtsou<br>
 | |
|     <strong>Mentor:</strong> Andrew Thompson<br>
 | |
| 
 | |
|     <strong>Summary:</strong>
 | |
| 
 | |
|     <p>Project aimed to improve layer2 filtering in ipfw and pf. All
 | |
|       of the project goals are achieved: pfil framework is extended to
 | |
|       handle ethernet packets, ipfw layer2 filtering is greatly
 | |
|       simplified, added l2filter and l2tag per interface flags. Both
 | |
|       ipfw and pf firewalls support filtering by ethernet addresses,
 | |
|       support stateful filtering with ethernet addresses and
 | |
|       firewall's lookup tables are extended to contain ethernet
 | |
|       addresses.</p>
 | |
| 
 | |
|     <p>ipfw was extended to perform arp packet filtering: arp-op,
 | |
|       src-arp and dst-arp options added.</p>
 | |
| 
 | |
|     <p>Details and usage examples are on my
 | |
|       <a href="http://blogs.freebsdish.org/gleb/">blog</a>.</p>
 | |
| 
 | |
|     <strong>Ready to enter CVS/SVN:</strong> Not yet, diff is submitted to freebsd-net@
 | |
|     for public review.
 | |
|   </li>
 | |
| 
 | |
|   <li>
 | |
|     <strong>Project:</strong> Porting FreeBSD to Efika (PPC bring up)<br>
 | |
|     <strong>Student:</strong> Przemek Witaszczyk (vi0@)<br>
 | |
|     <strong>Mentor:</strong> &a.raj;<br>
 | |
| 
 | |
|     <strong>Summary:</strong>
 | |
| 
 | |
|     <p>The main aim of the project is to port FreeBSD operating system
 | |
|       to MPC5200B evaluation board. Among subleading tasks, there were
 | |
|       objectives such as making kernel proceed to device drivers
 | |
|       initialization, modelling newbus hierarchy of devices, writing
 | |
|       the programmable interrupt controller driver, writing the PCI
 | |
|       driver. The ultimate goal is reaching multiuser mode.</p>
 | |
| 
 | |
|     <p>As for now, half of the project is realized. After solving a
 | |
|       few difficult problems at the basic level (binary interface
 | |
|       issues with entry point to the SmartFirmware on the device), the
 | |
|       boot procedure reaches the device drivers initialization stage,
 | |
|       and hits the PIC driver init. At this point, the driver skeleton
 | |
|       is constructed and is called. The driver uses ofwbus bus driver
 | |
|       which intermediates between the openfirmware and the FreeBSD
 | |
|       newbus devices hierarchy. After completing the PIC driver, I'll
 | |
|       be in the position to write the remaining drivers for
 | |
|       peripherals integrated on the MPC5200B chip using the newbus
 | |
|       architecture.</p>
 | |
| 
 | |
|     <p>I am determined to continue the work on the project after the
 | |
|       formal GSoC end date in order to bring at least the interrupt
 | |
|       controller driver to operation.</p>
 | |
| 
 | |
|     <p>More info available at project's wiki :
 | |
|       http://wiki.freebsd.org/PrzemekWitaszczyk and at my GSoC 2008
 | |
|       blog: http://bitbay.blogspot.com/</p>
 | |
| 
 | |
|     <strong>Ready to enter CVS/SVN:</strong> not yet, at least PIC driver required.
 | |
|   </li>
 | |
| 
 | |
|   <li>
 | |
|     <strong>Project:</strong> Audit Firewall Events from Kernel<br>
 | |
|     <strong>Student:</strong> Diego Giagio (diego@)<br>
 | |
|     <strong>Mentor:</strong> &a.csjp;<bR>
 | |
| 
 | |
|     <strong>Summary:</strong>
 | |
| 
 | |
|     <p>This project is part of TrustedBSD project and aims to provide
 | |
|       auditing support to security-related events generated by various
 | |
|       firewall implementations on FreeBSD such as IPFW, PF and
 | |
|       IPFILTER.</p>
 | |
| 
 | |
|     <p>Currently both administrative events (such as add/remove rules)
 | |
|       and network events (such as network connection establishment)
 | |
|       are being audited on IPFW. This means that all IPFW
 | |
|       security-related events are already being audited the way we
 | |
|       planned it to. Although PF and IPFILTER auditing support aren't
 | |
|       yet finished, all the hard infrastructure work needed to
 | |
|       implement that is already committed.</p>
 | |
| 
 | |
|     <p>The next step is basically finish implementing PF and
 | |
|       IPFILTER's auditing support. On the IPFW side, my research
 | |
|       showed that the way it handles statefull connections (even
 | |
|       before my work) needs improvement. I will also work on this. I
 | |
|       will keep working on this project in order to polish every rough
 | |
|       edge we might find. Once this is finished, I'll probably begin
 | |
|       working on other interesting TrustedBSD projects.</p>
 | |
| 
 | |
|     <p>More information can be found here:
 | |
|       http://wiki.freebsd.org/DiegoGiagio/Audit_Firewall_Events_from_Kernel</p>
 | |
| 
 | |
|     <strong>Ready to enter CVS/SVN:</strong> Not determined yet, perhaps parts of it.
 | |
|   </li>
 | |
| 
 | |
|   <li>
 | |
|     <strong>Project:</strong> Create a tiny operating system from FreeBSD<br>
 | |
|     <strong>Student:</strong> James Harrison<br>
 | |
|     <strong>Mentor:</strong> &a.imp;<br>
 | |
| 
 | |
|     <strong>Summary:</strong>
 | |
| 
 | |
|     <p>This project was a success and a failure at the same time. I
 | |
|       started work imagining that I would be creating, genuinely
 | |
|       creating, a new tiny operating system from FreeBSD. This was to
 | |
|       be a worthy goal, a challenging goal, and overall a fun goal. I
 | |
|       imagined it would involve making a bunch of shell scripts for
 | |
|       stripping out various parts of the OS, integrate a custom
 | |
|       kernel, and bob's your mother's brother, everything's done. This
 | |
|       was even reflected in the name of the project; it's the same
 | |
|       approach as TinyBSD, so I called mine ShinyBSD as a kind of
 | |
|       homage.</p>
 | |
| 
 | |
|     <p>Instead, I gained respect for TinyBSD, which is a fantastic
 | |
|       tool. A truly, truly, fantastic tool. Ultimately, with just a
 | |
|       few tweaks, it could do exactly what I needed it to do; building
 | |
|       a small OS has been completed for some time.</p>
 | |
| 
 | |
|     <p>The second portion was to cross compile and boot an arm
 | |
|       device. I had more hardware issues than you can shake a large
 | |
|       stick at, so though I can verify that I was working hard on
 | |
|       cross compiling, I cannot verify that the cross compiled product
 | |
|       I had made sense as a bootable image. I've started configuring
 | |
|       qemu now to see if I can verify via that. In discussion with my
 | |
|       mentor, I believe a profitable method of applying my knowedge
 | |
|       post-GSOC is to get a Makefile prepared for TinyBSD that cross
 | |
|       compiles out of the box.</p>
 | |
| 
 | |
|     <strong>Ready to enter CVS/SVN:</strong> Not yet, though when the Makefile is complete
 | |
|     it would be good to offer it up for inclusion in base.
 | |
|   </li>
 | |
| </ul>
 | |
| 
 | |
| <a name="press"></a>
 | |
| <h2>FreeBSD Summer of Code Links</h2>
 | |
| 
 | |
| <ul>
 | |
|   <li><a href="http://wiki.freebsd.org/moin.cgi/SummerOfCode2008">FreeBSD
 | |
|   Summer of Code 2008 Wiki</a> - with links to student project
 | |
|   pages.</li>
 | |
|   <li><a href="http://perforce.freebsd.org/depotTreeBrowser.cgi?FSPC=//depot/projects/soc2008/">Perforce
 | |
|   Directory for 2008 Projects</a>.</li>
 | |
| </ul>
 | |
| 
 | |
| &footer;
 | |
| </body>
 | |
| </html>
 |