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Re: Question about packet injection

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On Thursday 01 March 2007 16:11, Andy Green wrote:
> Hi folks -
> 
> As suggested here I migrated my daemon to using a per-physical device 
> monitor mode interface it creates and destroys from usermode, together 
> with libpcap for filtering and receiving broadcasts and that seems to be 
> working okay.  So that is half the battle to get the broadcast system 
> working with mac80211 out of the box without patches.
> 
> However, if I inject a captured packet - with a PRISM header prepended - 
> down the Monitor mode interface using pcap_inject(), I see it appear on 
> the libpcap captured output okay, but it does not go out on the air AFAICT.
> 
> Is this in fact the correct way to try to inject a packet with fine 
> control over its encryption and rate?  If so is it expected to currently 
> work on iwlwifi 0.0.8 or rt2x00 (rt73usb) from CVS 2008-02-14?

Note that rt73usb is currently broken, I know that RX isn't working
because scanning fails. Chances are quite high that TX is failing too.
I am still looking into that issue, but it might be the reason why
packet injection is failing for you.

Ivo
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