Status update
*VSE – Vendor Specific Elements*
SECC (Supply Equipment side)
According to the ISO 15118-8 the “charging” station (Wi-Fi Access Point)
- ✅ The SECC shall include a Vendor Specific Element in its Beacon frames
- ✅ The SECC shall include a Vendor Specific Element in its Probe Response frames.
We have completed number 1&2 using ‘hostapd’. See this post.
EVCC (Vehicle side)
According to the ISO 15118-8 the vehicle (Wi-Fi Station)
- ⚪ The EVCC shall include a Vendor Specific Element in its Association Request frames
- ⚪ The EVCC shall include a Vendor Specific Element in its Re-association Request frames.
- ✅ If active scanning is used, the EVCC shall include a Vendor Specific Element in its Probe Request frames
We have completed number 3 using the ‘iw’ command, see this article. We are currently investigating number 1&2.
*Protocol Analysis – Using Wireshark*
So far we have built several versions of Wireshark with initial support for 15118-8 parsing. See the screen grab below.
Hello.
Nice to see you’re doing the similar study with me. I also try to implement the VSE for 15118 using the COTS wifi card.
Modifying the wpa_supplicant source, I can send the probe request and association request message. It would be helpful to your number 1 and 2 at EVCC. please refer to follow link and command.
https://medium.com/@endland/wpa-supplicant-source-install-36b3b2e338e8
– probe request
wpa_cli -i wlanX VENDOR_ELEM_ADD 13 dd1d0017c31122334455667788990011223344556677889900112233445566
wpa_cli -i wlanX scan
– association request
wpa_cli -i wlanX VENDOR_ELEM_ADD 14 dd1d0017c31122334455667788990011223344556677889900112233445566
wpa_cli -i wlanX add_network
wpa_cli -i wlanX setnetwork 0 ssid ‘”VSE_TEST_AP’”
wpa_cli -i wlanX setnetwork 0 psk ‘”1234567890”’
wpa_cli -i wlanX select_network 0
If you already succeed these job or do it successfully, it would be very helpful for further study.
In addition, I’d like to ask you how to parse the 15118-8 message using the wireshark like the picture you uploaded.
Is there any plug-in fort it?
I hope your positive response.
Many thanks.
Kim