OggS $h KOpusHead8 OggS $h G<sOpusTags Lavf58.45.100 language=deu handler_name=SoundHandler encoder=Lavc58.91.100 libopus major_brand=isom minor_version=512" compatible_brands=isomiso2avc1mp41 author=Hugo Landau genre=lecture= title=Adventures in Reverse Engineering Broadcom NIC FirmwareQ copyright=Licensed to the public under http://creativecommons.org/licenses/by/4.0 album=37C3 artist=Hugo Landau description=In an era where vendors increasingly seek to use proprietary software in the devices around us to exert control over their users, the desire for open source software has expanded to the firmware that allows our machines to function, and platforms which individuals can trust and control have never been more important. However, changes to hardware platforms in recent years such as the Intel ME, vendor-supplied binary blobs and vendor-signed firmware images have repeatedly set back efforts to create open source firmware for the computers we use. The release of Power servers with 99% open source firmware excited many who had been searching for a computer they could trust, but one proprietary firmware blob remained: that of the Ethernet controller. This is the story of how that blob was reverse engineered and replaced with an open source replacement, delivering the first machine with desktop-class performance and 100% open source firmware in many years.OggS $h ay;.,.#%! :qw%!O ^i@A9*SyrtGcn7dNCw0mi~D-sxj52p@n]?W2Yw{'XmkM^iN>u&N`5)CRB4< v3b[nVTVJ80yFwSKZ d#%8ud`\d#ƈ(d G 7 E ȫ2' sP *%&<#k]+0P3YK=;@:D@,`F과w[0ѣh(8ș!rGU9>BI4s 7(qW3wKFs.SkK9e&CB3+FmzM C`oab5#+8[м.\p1#P=^.%L閘d9g5jee˔3- $}Ǟ(Twc(>'*=Fv ͌ıɗGz/jۥا%}R F.?m3kΝszϜr''vvhl){AT }' ɿ]7:zlIq'Z#eD{$6 TbeFq;{B{o0 /0Þ%CE It >-2A4:U qzF6k{M2r)Pz.ܥaT4N5}heǩ8w;UQ<0go,PIYDYs$-0*5Ms&YiUN\{ יH3 Ěa