Re: [Madwifi-devel] Firewall for 802.11

[Paul P. <p_p...@in...>]

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Shitij Malhotra wrote:
> I am making a firewall for 802.11 for an acadamic project, where I block
> packets depending upon their source APs etc. As far as i understood the
> best place to do this is inside the driver.
> However I could not understand much on where to begin with when i looked
> at the mad wifi source.
> I am very new to Linux.

Hi,

take a look at the file ieee80211_input.c in the directory net80211.
When a frame arrives the method ieee80211_input_all is invoked which
calls iee80211_input. There you will find a switch-case statement for
the different frame types.

Good luck,
Paul Pichota
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