[tor-bugs] #6071 [Ooni]: PCAP read/writer

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#6071: PCAP read/writer
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 Reporter:  hellais  |          Owner:  hellais               
     Type:  task     |         Status:  new                   
 Priority:  normal   |      Milestone:  Sponsor H: August 2012
Component:  Ooni     |        Version:                        
 Keywords:           |         Parent:  #5869                 
   Points:           |   Actualpoints:                        
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 OONI probe needs to be able to read and write pcap data.

 We need a way to read all the data that is sent and received by a certain
 test. This can be achieved with one of three ways:

 1) The writer of a test specifies the BPF filter [1] that packets
 generated by it's test will adhere to
 2) The packets generated by the test are marked in a way that it is then
 possible to retrieve them from the midst of other packets.
 3) We create a tun/tap device specific for ooni probe or one for each test
 and route the traffic of the test through it.

 For pcap support in python there is pypcap:
 http://code.google.com/p/pypcap/

 [1] http://biot.com/capstats/bpf.html

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Ticket URL: <https://trac.torproject.org/projects/tor/ticket/6071>
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