Ivo van Doorn wrote:
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.
The 2007-02-14 rt73usb CVS works okay for RX, it does iwlist wlan0 scans
alright here anyway with the AP shown. I have had that version issuing
unencrypted broadcasts too by hacking the stack and the driver slightly.
Maybe it was some Valentines Day magic :-) But it doesn't associate
in a stable way with the AP using WPA on wpa_supplicant with the dscape
patch.
Anyway it seems the problem is one does not inject for TX on the Monitor
mode interface (/me goes away to grep and google what a Management mode
interface does, thanks Johannes)
-Andy
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