2011-08-30 07:07:10

by Hao Han

[permalink] [raw]
Subject: [DEV] modify 802.11 header on BCM4329

Hi all,

I try to modify 802.11 header of tramsitted packets, especially
management frames such as beacons. When the wireless interface works
in master mode (enabled by new firmware named fw_bcm4329_apsta.bin), I
do monitor beacons on air. However, I cannot find the place through
the driver where these beacons are generated and transmitted. Is that
in firmware?

My goal is to modify the value of some exsiting field and add new
fields in beacon. If anyone has such experience, please let me know.
Any feedback would be extremely appreciated :)

Best,
Hao


2011-08-30 09:37:26

by Arend van Spriel

[permalink] [raw]
Subject: Re: [DEV] modify 802.11 header on BCM4329

On 08/30/2011 09:07 AM, Hao Han wrote:
> Hi all,
>
> I try to modify 802.11 header of tramsitted packets, especially
> management frames such as beacons. When the wireless interface works
> in master mode (enabled by new firmware named fw_bcm4329_apsta.bin), I
> do monitor beacons on air. However, I cannot find the place through
> the driver where these beacons are generated and transmitted. Is that
> in firmware?
>
> My goal is to modify the value of some exsiting field and add new
> fields in beacon. If anyone has such experience, please let me know.
> Any feedback would be extremely appreciated :)
>
> Best,
> Hao
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Hi Hao,

Your guess is right. bcm4329 has most of the stack functionality in
firmware.

Gr. AvS

--
Almost nobody dances sober, unless they happen to be insane.
-- H.P. Lovecraft --