[FS#550] hostapd (wpad-mesh) fails to start interface at same time with meshpoint interface

[LEDE Bugs]

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

User who did this - Charlemagne Lasse (charlemagnelasse) 

Attached to Project - LEDE Project
Summary - hostapd (wpad-mesh) fails to start interface at same time with meshpoint interface
Task Type - Bug Report
Category - Base system
Status - Unconfirmed
Assigned To - 
Operating System - All
Severity - Low
Priority - Very Low
Reported Version - Trunk
Due in Version - Undecided
Due Date - Undecided
Details - Test device: OM2P from 2011 with ath9k and ar71xx subtarget
Version: LEDE 17.01.0-rc1 branch commit reboot-3208-g349577adbf

Build the image with following .config


CONFIG_TARGET_ar71xx=y
CONFIG_TARGET_ar71xx_generic=y
CONFIG_TARGET_ar71xx_generic_DEVICE_OM2P=y
CONFIG_OPENSSL_WITH_DEPRECATED=y
CONFIG_OPENSSL_WITH_EC=y
CONFIG_OPENSSL_WITH_NPN=y
CONFIG_OPENSSL_WITH_PSK=y
CONFIG_OPENSSL_WITH_SRP=y
CONFIG_PACKAGE_libopenssl=y
CONFIG_PACKAGE_wpad-mesh=y
# CONFIG_PACKAGE_wpad-mini is not set


Then modify /etc/config/wireless to look like this:


config wifi-device 'radio0'
        option type 'mac80211'
        option channel '1'
        option hwmode '11g'
        option path 'pci0000:00/0000:00:00.0'
        option htmode 'HT20'
        option disabled '0'

config wifi-iface 'ap2'
        option device 'radio0'
        option ifname 'ap-2'
        option network 'lan'
        option mode 'ap'
        option ssid 'meshedAP'
        option macaddr 'ac:86:74:00:00:01'
        option encryption 'none'

config wifi-iface 'mesh2'
        option device 'radio0'
        option ifname 'mesh-2'
        option network 'lan'
        option mode 'mesh'
        option mesh_id 'mymesh'
        option disabled '0'
        option mcast_rate '54000'
        option macaddr 'ae:86:74:00:00:01'
        option mesh_ttl 1
        option mesh_fwding 0
        option encryption 'none'
        option ieee80211w 1
        option encryption 'psk2+aes'
        option key 'reallysecretkey'



The iw dev output looks then like this:


phy#0
        Interface ap-2
                ifindex 8
                wdev 0x3
                addr ac:86:74:00:00:01
                type AP
                txpower 20.00 dBm
        Interface mesh-2
                ifindex 7
                wdev 0x2
                addr ae:86:74:00:00:01
                type mesh point
                channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz
                txpower 20.00 dBm


Setting encryption to "none" doesn't help. But it seems to work fine when the mesh interface is disabled in uci


phy#0
        Interface ap-2
                ifindex 11
                wdev 0x6
                addr ac:86:74:00:00:01
                ssid meshedAP
                type AP
                channel 1 (2412 MHz), width: 20 MHz, center1: 2412 MHz
                txpower 20.00 dBm



This could become a big problem for freifunk-gluon when 802.11s is used instead of IBSS in the site.conf. Their setup is using AP + mesh on the same PHY

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=550