HowTos/WPA

From OpenZaurus

Contents

[edit]

Zaurus SL-5500G w. OZ 3.5.4

The following I created out of various source (listservers, howtos ... nothing in here is my invention) - unfortunately I did not note the origins in my notes; so I can not pay credits to those who would deserve it.

[edit]

configure hostap driver

For Prism based cards we'll have to use the hostap drivers to be able to use WPA (you may have to download & install them 1st with ipkg); on my collie by default the orinoco drivers were installed and used. The file you need to edit to switch drivers is /etc/pcmcia/hermes.conf. I added these lines @ top of the file: 

device "hostap_cs"
class "hermes"
module "hostap", "hostap_cs"

Then find the definition for your card (further down in that file) and change the "orinoco_cs" reference to "hostap_cs". The definition for my card now looks like this: 

 card "Orinoco or Intersil Prism 2 Wireless"
 manfid 0x0156,0x0002
 bind "hostap_cs"

If you're not sure which entry is for your card, use 'cardctl ident' and search in /etc/pcmcia/hermes.conf for the "product info" it reports.

After editing /etc/pcmcia/hermes.conf, eject your card and restart the PCMCIA services: 

#> cardctl eject 0

remove the card now 

#> /etc/rc.d/init.d/pcmcia restart

insert the card again

You can test if it has worked by running lsmod: 

#> lsmod
Module     Size Used by Tainted: P
hostap_cs 45896 1
hostap    85568 0 [hostap_cs]
[edit]

install wpa_supplicant

Use ipkg to install the wpa_supplicant packages; then add the following section to /etc/wpa_supplicant.conf: 

network={
       ssid="the_networks_ssid"
       psk="the_secret_password"
       priority=5
}


[edit]

update firmware

To be able to use WPA the card's firmware must be >= 1.7.4. We can update the firmware (which was necessary in my case) with the hostap-utils; for this you'll have to install the following packages: prism3-firmware, hostap-utils /etc/pcmcia should now contain an updated RAM image for prism cards (rf010804.hex).

[edit]

configure the interface

Next you'll have to modify "/etc/network/interfaces" wlan0 section in the following way: 

# Wireless interfaces
iface wlan0 inet dhcp
       wireless_essid any
       wireless_mode Auto
       pre-up iwpriv wlan0 reset 1
       pre-up prism2_srec -r wlan0 /etc/pcmcia/rf010804.hex
       pre-up wpa_supplicant -B -w -i wlan0 -c /etc/wpa_supplicant.conf
       post-down killall -q wpa_supplicant

=> now WPA encription should work :-), Tested with OZ 3.5.4 @ SL-5500G

Retrieved from "http://wiki.openzaurus.org/HowTos/WPA"