test/expected/LWN/0000764200.header.html

   1 <!DOCTYPE html>
   2 <html>
   3 <head>
   4   <meta http-equiv='content-type' content='text/html; charset=utf-8'>
   5   <meta name='viewport' content='width=device-width, initial-scale=1.0'>
   6   <style type='text/css'>
   7     body { margin: 1em 15%; }
   8   </style>
   9 </head>
  10 <body>
  11 <div class='story-header'>
  12         <h1><a href='0000764200.html'>[$] Writing network flow dissectors in BPF</a></h1>
  13         <div class='details'>([Kernel] Sep 6, 2018 15:59 UTC (Thu) (corbet))</div>
  14         <br/>
  15         <div class='content' style='text-align: justify'>
  16                 Network packet headers contain a great deal of information, but the kernel often only needs a subset of that information to be able to perform filtering or associate any given packet with a flow. The piece of code that follows the different layers of packet encapsulation to find the important data is called a flow dissector. In current Linux kernels, the flow dissector is written in C. A patch set has been proposed recently to implement it in BPF with the clear goal of improving security, flexibility, and maybe even performance.
  17         </div>
  18 <hr/>
  19 </div>
  20 </body>