I have been looking for a while for a starting point to have my own code to parse the packets incoming on a specific interface. It is not a radiotap / not an interface in monitor mode.
It is a regular wlan1 and I can just not find the entry point.... how to get started.
There is libpcap and pcap_open_live - this is what I have found.
Is this the appropriate way to "hook up" to an interface and to listen and to parse 802.11 packets?
Any hint is highly appreciated -
thanks, Frood
Hello Frood42,
The proper way to capture packets on an interface is with "tcpdump" command
You can then parse these packets to wireshark for better inspection.
My suggestion, create a startup script which will run the tcpdump command on a specific interface and send those data directly to a file or to wireshark on your pc via network
Some helpful links
best regards
Tcpdump is done manually - I am fine with that.
But I need to read the traffic on wlan1 in real time - and filter and parse some specific data.
And no, I don’t want to read and parse it manually (netcat tcpdump remotely) - I need to do it programmatically.
It is actually broadcasts (802.11p) that are received on wlan1 with type OCB.
On the router there is
running.
I have searched the openc2x embedded code for the way they are receiving packets / data but I am not sure if this is just simulated data or real data received.
I cannot find any code how the packets are received. Parsing is no problem.
But I am not sure about the proper way how to hook up to an interface to read the stream.
Please remember: interface is not on monitor mode.
BR Frood