netplan not support to establish a wireless WPA3 connection

Hello, thank you for your bug report.

In fact Netplan is missing the authentication method required by the WPA3 protocol.

I've created a patch adding support for it. It's available here https://github.com/canonical/netplan/pull/369

Hi,

It's glad to know the progress and may support it in the near future. Tks.

Laider,

may I ask you to test the WPA3 connectivity, using the Netplan 0.106.1 backport from this PPA (including the requested WPA3 patches)?

https://launchpad.net/~slyon/+archive/ubuntu/lp2023238-wpa3

If that works as expected, we can include the patches into the netplan.io package in Mantic and eventually get it SRUed back to Jammy.

Note: you need to use "key-management: sae" as shown here https://github.com/canonical/netplan/blob/main/examples/wireless_wpa3.yaml

Hi Lukas / Danilo,

Thanks for your information. The test result is passed on the target platform.
If there are no other concerns, could you help to make WPA3 patches into the netplan.io package in Mantic and SRUed back to Jammy? Tks.

===verification log (sensitive information is replaced as <xxx>)===
ubuntu@ubuntu:~$ apt list --installed | grep netplan
...
libnetplan0/jammy,now 0.106.1-2~22.04.1~ppa0 amd64 [installed,automatic]
netplan.io/jammy,now 0.106.1-2~22.04.1~ppa0 amd64 [installed,automatic]

ubuntu@ubuntu:~$ cat /etc/netplan/00-wpa3-init.yaml
network:
  version: 2
  wifis:
    wlp1s0:
      access-points:
        <WPA3 SSID>:
          auth:
            key-management: sae
            password: <password>
      addresses: []
      dhcp4: True
      nameservers: {}

ubuntu@ubuntu:~$ iwconfig wlp1s0
wlp1s0 IEEE 802.11 ESSID:"<WPA3 SSID>"
          Mode:Managed Frequency:5.18 GHz Access Point: A2:C9:EB:F0:DD:88
          Bit Rate=866.7 Mb/s Tx-Power=22 dBm
          Retry short limit:7 RTS thr:off Fragment thr:off
          Encryption key:off
          Power Management:on
          Link Quality=53/70 Signal level=-57 dBm
          Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
          Tx excessive retries:0 Invalid misc:3 Missed beacon:0

ubuntu@ubuntu:~$ ip addr show dev wlp1s0
5: wlp1s0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/ether e0:d0:45:fe:0a:74 brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.6/24 metric 600 brd 192.168.1.255 scope global dynamic wlp1s0
       valid_lft 1518sec preferred_lft 1518sec
    inet6 fe80::e2d0:45ff:fefe:a74/64 scope link
       valid_lft forever preferred_lft forever

Status changed to 'Confirmed' because the bug affects multiple users.

This bug was fixed in the package netplan.io - 0.106.1-6

---------------
netplan.io (0.106.1-6) unstable; urgency=medium

  * Fix ethernets,vlans,scenarios autopkgtests on systemd 254, Closes: #1041311

 -- Lukas Märdian <email address hidden> Tue, 18 Jul 2023 17:35:49 +0200

Confirmed the 0.106.1-7ubuntu0.22.04.2 is published under jammy-updates.
Confirmed this version includes the WPA3 support.

Fixed as part of the 0.106.1 backport in Jammy and Lunar (LP: #2025519)