802.11 Management & data frame analysis - User space
From: Bobby Sardana (sardana_at_obsoft.com)
Date: 2002-08-15 07:43:46 UTC
Greetings:
I am wondering if the following is possible using Host AP driver using a
Prism2 card:
- In the monitor mode, I want to sniff the data and management frames
at the same time allow the node to act as an access point. Some of the
past posts, in the archives, reveal that this is not possible. If the
node is in monitor mode then it is considered passive and can only
analyze (sniff) the frames. However, if the driver code can be modified
to propagate the data and management frames to a UDP listener, i.e.,
modify the driver code to propagate all frames via embedding them in a
UDP packet,then an external process can capture the UDP packets and dump
them into a file. Is this possible? If yes, which driver files do I need
to modify?
- What other modes, e.g., managed (AP), will allow the inspection of
data and management frames? Do they ever hit the driver code? If they
do, is there a mechanism that we can modify the driver code to propagate
them to user space, e.g., via a UDP packet? The idea is that the node
should continue to act as an access point and analyze packets.
I am new to the driver code so am ignorant to obvious pitfalls. But any
answers to the above are appreciated.
with regards,
Bobby Sardana.
sardana_at_obsoft.com
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