hostapd git with rt73usb not working

[Iwo Mergler]

Lee Garrett wrote:
> Hello there,
> 
> I'm trying to run hostapd as AP on an mac80211 wlan stick. I'm using an rt2x00
> git kernel, libnl and hostapd (all current git version as of 2nd Septembre).
> The rt73 usb stick is working ("iwlist wlan0 scanning" shows me APs around
> me). I tried a simple as possible hostapd.conf configuration (no encyption,
> non fancy stuff, see attached).
> 
> When I start hostapd, following happens:
> 
> lenny:~# hostapd -dd /etc/hostapd/hostapd.conf
> Configuration file: /etc/hostapd/hostapd.conf
> ctrl_interface_group=0
> Opening raw packet socket for ifindex 0
> BSS count 1, BSSID mask ff:ff:ff:ff:ff:ff (0 bits)
> SIOCGIWRANGE: WE(compiled)=22 WE(source)=21 enc_capa=0xf
> Failed to update rate sets in kernel module
> RATE[0] rate=10 flags=0x2
> RATE[1] rate=20 flags=0x6
> RATE[2] rate=55 flags=0x6
> RATE[3] rate=110 flags=0x6
> RATE[4] rate=60 flags=0x0
> RATE[5] rate=90 flags=0x0
> RATE[6] rate=120 flags=0x0
> RATE[7] rate=180 flags=0x0
> RATE[8] rate=240 flags=0x0
> RATE[9] rate=360 flags=0x0
> RATE[10] rate=480 flags=0x0
> RATE[11] rate=540 flags=0x0
> Could not set passive scanning: Unknown error 4294967295
> Flushing old station entries
> Deauthenticate all stations
> Mode: IEEE 802.11g  Channel: 1  Frequency: 2412 MHz
> Failed to set CTS protect in kernel driver
> Failed to set Short Slot Time option in kernel driver
> Could not set preamble for kernel driver
> Using interface wlan0 with hwaddr 00:1f:c6:xx:xx:xx and ssid 'testing123'
> Failed to set CTS protect in kernel driver
> Failed to set Short Slot Time option in kernel driver
> Could not set preamble for kernel driver
> wlan0: Setup of interface done.
> Wireless event: cmd=0x8b04 len=12
> unknown vendor specific information element ignored (vendor OUI 00:10:18 len=9)
> STA 00:16:cf:xx:xx:xx sent probe request for broadcast SSID
> STA 00:1d:4f:xx:xx:xx sent probe request for broadcast SSID
> STA 00:1d:4f:xx:xx:xx sent probe request for broadcast SSID
> STA 00:1d:4f:xx:xx:xx sent probe request for broadcast SSID
> STA 00:13:02:xx:xx:xx sent probe request for broadcast SSID
> unknown vendor specific information element ignored (vendor OUI 00:10:18 len=9)
> STA 00:16:cf:xx:xx:xx sent probe request for broadcast SSID
> unknown vendor specific information element ignored (vendor OUI 00:10:18 len=9)
> STA 00:16:cf:xx:xx:xx sent probe request for broadcast SSID
> 
> 
> 
> Clearly hostapd notices stations sending probe requests (00:1d:4f:xx:xx:xx is
> my client), but hostapd never answers. Also, on another client, with
> aircrack-ng I sniffed on channel 1, but never saw traffic from my AP (like
> beacon frames, or anything else).
> 

There is an old bug workaround which will garble beacons. Today's rt2x00 git
has a fix. Unless your sniffer can also display broken packets, you won't see
the beacons.

You should see the probe requests, however.

Kind regards,

Iwo