[FS#1461] [hostapd] wpa_supplicant and mesh fail to connect after change to sae_password

[LEDE Bugs]

A new Flyspray task has been opened.  Details are below. 

User who did this - Jeff Kletsky (jeffsf) 

Attached to Project - OpenWrt/LEDE Project
Summary - [hostapd] wpa_supplicant and mesh fail to connect after change to sae_password
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Medium
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Even after changing ''/etc/config/wireless'' to use ''option sae_password'', mesh node fails to connect with other nodes with builds on or after the indicated commit. 

This //may// be an upstream issue, even though ''hostap/wpa_supplicant/wpa_supplicant.conf'' does call out ''sae_password'' 

Reverting to the older version of ''/lib/netifd/hostapd.sh'' allows the mesh to properly connect. (The config file contains both ''key'' and ''sae_password'' entries.) Commenting out the ''option key'' line in the config file for the failing build does not change the behavior. 

//Reverting ''/lib/netifd/hostapd.sh'' is a work-around at this time.//

Interface is up as per both ''iw dev'' and ''ip link''

''/var/run/wpa_supplicant-mesh0.conf'' has been confirmed to pick up ''sae_password'' in the impacted builds and be otherwise "the same" as functioning builds.
network={
	
	ssid=""
	key_mgmt=SAE
	mode=5
	fixed_freq=1
	frequency=5745
	ht40=1
	vht=1
	max_oper_chwidth=1
	sae_password=""
	beacon_int=100
}


The command line executing wpa_supplicant on the interface is the same in both cases
''/usr/sbin/wpa_supplicant -B -b br-mesh -P /var/run/wpa_supplicant-mesh0.pid -D nl80211 -i mesh0 -c /var/run/wpa_supplicant-mesh0.conf -C/var/run/wpa_supplicant''

config wifi-device 'radio5'
	option type 'mac80211'
	option channel '149'
	option hwmode '11a'
	option path 'pci0000:01/0000:01:00.0'
	option htmode 'VHT80'
	option require_mode 'ac'

config wifi-iface 'mesh0'
	option device 'radio5'
	option ifname 'mesh0'
	option mode 'mesh'
	option mesh_id ''
	option mesh_fwding '1'
	option encryption 'psk2+ccmp'
	option key ''
	option sae_password ''
	option network 'mesh'


Four Archer C7 v2 units
5 GHz radio for all on the mesh; other units running older builds with identical config for 5 GHz radio, other than the addition of ''option sae_password''

Clean builds for the DUT with identical ''.config'' for both builds.

OpenWRT tree:

Good: 9b92afa3aa3bf19986983f4dceb54b4952d4b970 uci: update to latest git
Fails: eba3b028e46dbfe54f1208e9edf47bb0c6f73ac8 hostapd: update to git snapshot of 2018-03-26

Makefile changes around ''hostap'':

-PKG_SOURCE_DATE:=2018-03-26
-PKG_SOURCE_VERSION:=64624f31cf81dc6164462fa153ee7a5909e21183

+PKG_SOURCE_DATE:=2017-08-24
+PKG_SOURCE_VERSION:=c2d4f2eb5dba0b5c5a8c5805823084da958a9b52





 

More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=1461