[TW] Trying to get wpa_supplicant working

27 Apr 2023

      System is Tumbleweed with KDE Plasma desktop.

I have been following the "Network Manager and my 'Use Case' thread
with interest and have managed to setup a working ethernet network
connection using systemd-networkd, thanks to the examples posted there.

I also have a wireless card in this computer, and was using Network
Manager to manage both wired and wireless connections. Now that I have
disabled Network Manager, I would like to find a similar
systemd-networkd solution for my wireless card.

I believe I have to use wpa_supplicant to communicate passwords etc
with the router, followed by the systemd-networkd configuration.

I have created /etc/wpa_supplicant.conf

---
ctrl_interface=/var/run/wpa_supplicant
ctrl_interface_group=wheel

# home network; allow all valid ciphers
          network={
               ssid="Hillingdon Wi-Fi"   <== Name as seen by mobile phone, for example
               scan_ssid=1
               key_mgmt=WPA-PSK
               psk="my-wifi-password"   <=== not the real password
          }
---

But when I do

# wpa_supplicant -iwlan0 -c/etc/wpa_supplicant.conf -d
wpa_supplicant v2.10
Successfully initialized wpa_supplicant
Initializing interface 'wlan0' conf '/etc/wpa_supplicant.conf' driver 'default' ctrl_interface 'N/A' bridge 'N/A'
Configuration file '/etc/wpa_supplicant.conf' -> '/etc/wpa_supplicant.conf'
Reading configuration file '/etc/wpa_supplicant.conf'
ctrl_interface='/var/run/wpa_supplicant'
ctrl_interface_group='wheel'
Priority group 0
   id=0 ssid='Hillingdon Wi-Fi'
Could not read interface wlan0 flags: No such device
nl80211: Driver does not support authentication/association or connect commands
nl80211: deinit ifname=wlan0 disabled_11b_rates=0
nl80211: Remove monitor interface: refcount=0
netlink: Operstate: ifindex=0 linkmode=0 (kernel-control), operstate=6 (IF_OPER_UP)
Could not read interface wlan0 flags: No such device
wlan0: Failed to initialize driver interface
Failed to add interface wlan0
wlan0: Cancelling scan request
wlan0: Cancelling authentication timeout
Off-channel: Clear pending Action frame TX (pending_action_tx=(nil)
QM: Clear all active DSCP policies
wlan0: CTRL-EVENT-DSCP-POLICY clear_all

There seem to be two problems:

1. No such device (fatal!)
2. Driver does not support authentication - but NM succeeded in setting
up a connection.

Can anyone suggest what I'm missing here, please?

TIA
-- 
Bob Williams

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