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Code Block
languagebash
titleExt - Build Instructions
repo init -u https://code.rdkcentral.com/r/manifests -b kirkstone -m rdkb-bpi-ap-extsrc.xml
repo sync -j4 --no-clone-bundle

#CP the below changes
cd ~/meta-rdk
git fetch https://code.rdkcentral.com/r/rdk/components/generic/rdk-oe/meta-rdk refs/changes/39/114939/5 && git cherry-pick FETCH_HEAD
cd -

MACHINE=bananapi4-rdk-broadband-ap-extender source meta-cmf-bananapi/setup-environment-refboard-rdkb
bitbake rdk-generic-ap-extender-image

Prerequisites - One Time Process

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rm /usr/bin/dnsmasq

       2. Remove default gw entry from routing table since WAN access will be through backhaul connection.

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  1. Please ensure below processes are running in Ext1
Code Block
languagebash
titleExtender1 EasymeshCfg.jsonExt1 - EM Process Status
collapsetrue
{
"AL_MAC_ADDR": "00:0c:43:26:60:1b",
"Colocated_mode": 0,
"Backhaul_SSID": "mesh_backhaul",
"Backhaul_KeyPassphrase": "test-backhaul",
"sta_4addr_mode_enabled": true
}

4. Copy below content to /nvram/InterfaceMap.json file.

Code Block
languagebash
titleExtender1 InterfaceMap.json
collapsetrue
{
    "PhyList": [
        {root@Filogic-GW:~# systemctl status onewifi
* onewifi.service - Cosa service
     Loaded: loaded (8;;file://Filogic-GW/lib/systemd/system/onewifi.service/lib/systemd/system/onewifi.service8;;; enabled; vendor preset: e)
     Active: active (running) since Thu   "Index": 0,
     2022-04-28 17:43:15 UTC; 3min 29s ago
TriggeredBy: * filogicwifiinitialized.path
       "RadioList"Process: [
    1781 ExecStartPre=/bin/sh /usr/ccsp/wifi/onewifi_pre_start.sh (code=exited, status=0/SUCCESS)
    Process: 2085 ExecStart=/usr/bin/OneWifi -subsys $Subsys     {(code=exited, status=0/SUCCESS)
   Main PID: 2086 (OneWifi)
      Tasks: 14 (limit: 4713)
     "Index"Memory: 2,38.2M
                    "RadioName": "wifi2",CGroup: /system.slice/onewifi.service
             `- 2086 /usr/bin/OneWifi -subsys eRT.

2022 Apr  "InterfaceList": [
                        {
                            "InterfaceName": "wifi2",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 4,
                            "vapName": "private_ssid_6g"28 17:42:48 Filogic-GW systemd[1]: Starting Cosa service...
2022 Apr 28 17:42:53 Filogic-GW UTOPIA[2086]: system.syscfg Shared memory file not found
2022 Apr 28 17:42:53 Filogic-GW UTOPIA[2086]: 2022-04-28  17:42:53., ../../../../git/source/syscfg/lib/syscfg_lib.c:466, Error initializing sy
2022 Apr 28 17:43:15 Filogic-GW systemd[1]: Started Cosa service.
2022 Apr 28 17:44:01 Filogic-GW [OneWifi][2086]:   WiFi radio radio1 is set to UP

root@Filogic-GW:~# systemctl status ieee1905_em_agent
* ieee1905_em_agent.service - ieee1905 EasyMesh Remote Agent service
     Loaded: loaded (8;;file://Filogic-GW/lib/systemd/system/ieee1905_em_agent.service/lib/systemd/system/ieee1905_em_agent.service8;;; enabl)
     Active: active (running) since Thu 2022-04-28 17:43:35 UTC; 3min 16s ago
    Process: 3284 ExecStartPre=/bin/sh -c /usr/ccsp/EasyMesh/setup_ext_pre.sh (code=exited, status=0/SUCCESS)
    Process: 3303 ExecStartPre=/bin/sh -c if [ ! -e "/sys/class/net/eth1_virt_peer/address" ]; then `/usr/ccsp/EasyMesh/setup_veth_for_em.sh )
    Process: 3304 ExecStartPre=/bin/sh -c sleep 5 (code=exited, status=0/SUCCESS)
    Process: 3439 ExecStart=/bin/sh -c /usr/bin/ieee1905 -f ieee1905::al_sap=trace,ieee1905::cmdu_handler=trace,ieee1905::cmdu_proxy=trace,ie)
   Main PID: 3440 (ieee1905)
      Tasks: 7 (limit: 4713)
     Memory: 10.5M
     CGroup: /system.slice/ieee1905_em_agent.service
             `- 3440 /usr/bin/ieee1905         }
                    ]
                },
                {
                    "Index": 1,
                    "RadioName": "wifi1",
                    "InterfaceList": [
                        {
                            "InterfaceName": "wifi1.1",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 3,
                            "vapName": "mesh_sta_5g"
                        },
                        {
                            "InterfaceName": "wifi1",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 2,
                            "vapName": "private_ssid_5g"
                        }
                         
                    ]
                },
                {
                    "Index": 0,
                    "RadioName": "wifi0",
                    "InterfaceList": [
                        {
                            "InterfaceName": "wifi0.1",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 1,
                            "vapName": "mesh_backhaul_2g"
                        },
                        {
                            "InterfaceName": "wifi0",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 0,
                            "vapName": "private_ssid_2g"
                        }
                    ]
                }
            ]
        }
    ]
}

5. Copy below content to /usr/ccsp/wifi/onewifi_pre_script.sh.

Code Block
languagebash
titleExtender1 onewifi_pre_script.sh
collapsetrue
#!/bin/sh
sleep 5
 
 
iw phy phy0 interface add wifi0 type __ap
iw phy phy0 interface add wifi0.1 type __ap
iw phy phy0 interface add wifi1 type __ap
iw phy phy0 interface add wifi2 type __ap
iw phy phy0 interface add wifi1.1 type __ap

 
#Obtain the wifi0 mac address
wifi_mac="$(cat /sys/class/ieee80211/phy0/macaddress)"
#Strip the : and increment mac by 1 to get wifi1 macaddress
mac=$(echo $wifi_mac | tr -d ':')
mac_incr=$((0x$mac + 8))
wifi0_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
#Increment again by 1 to get wifi2 address
mac_incr=$(($mac_incr + 1))
wifi0_1_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
#Increment again by 1 to get wifi2 address
mac_incr=$(($mac_incr + 1))
wifi1_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
mac_incr=$(($mac_incr + 1))
wifi1_1_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
mac_incr=$(($mac_incr + 1))
wifi2_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
#print the mac address
echo $wifi0_mac
echo $wifi1_mac
echo $wifi2_mac
 
#Update the mac address using ip link command
ifconfig wifi0 down
ifconfig wifi0.1 down
ifconfig wifi1 down
ifconfig wifi1.1 down
ifconfig wifi2 down
ip link set dev wifi0 address $wifi0_mac
ip link set dev wifi0.1 address $wifi0_1_mac
ip link set dev wifi1 address $wifi1_mac
ip link set dev wifi1.1 address $wifi1_1_mac
ip link set dev wifi2 address $wifi2_mac
ifconfig wifi0 up
ifconfig wifi1 up
ifconfig wifi1.1 up
ifconfig wifi2 up
 
exit 0

6. Disable the below services

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systemctl disable ieee1905_em_ctrl.service

systemctl disable em_ctrl

-f ieee1905::al_sap=trace,ieee1905::cmdu_handler=trace,ieee1905::cmdu_proxy=trace,ieee1905::cmdu_obserr

2022 Apr 28 17:43:30 Filogic-GW systemd[1]: Starting ieee1905 EasyMesh Remote Agent service...
2022 Apr 28 17:43:35 Filogic-GW systemd[1]: Started ieee1905 EasyMesh Remote Agent service.

root@Filogic-GW:~# systemctl status em_agent         
* em_agent.service - EasyMesh Agent service
     Loaded: loaded (8;;file://Filogic-GW/lib/systemd/system/em_agent.service/lib/systemd/system/em_agent.service8;;; enabled; vendor preset:)
     Active: active (running) since Thu 2022-04-28 17:44:00 UTC; 2min 57s ago
    Process: 3283 ExecStartPre=/bin/sh -c sleep 30 (code=exited, status=0/SUCCESS)
    Process: 3621 ExecStartPre=/bin/sh -c /usr/ccsp/EasyMesh/setup_ext_pre.sh (code=exited, status=0/SUCCESS)
    Process: 3640 ExecStart=/bin/sh -c /usr/bin/onewifi_em_agent >> /tmp/em_agent.log & (code=exited, status=0/SUCCESS)
   Main PID: 3641 (onewifi_em_agen)
      Tasks: 9 (limit: 4713)
     Memory: 10.8M
     CGroup: /system.slice/em_agent.service
             `- 3641 /usr/bin/onewifi_em_agent

2.

7. copy below contents to /lib/systemd/system/ieee1905_em_agent.service

Code Block
languagebash
titleieee1905_em_agent
collapsetrue
[Unit]
Description=ieee1905 EasyMesh Remote Agent service
After=onewifi.service

[Service]
Type=forking
WorkingDirectory=/usr/ccsp/EasyMesh
ExecStartPre=/bin/sh -c '/usr/ccsp/EasyMesh/setup_ext_pre.sh'
ExecStartPre=/bin/sh -c 'if [ ! -e "/sys/class/net/eth1_virt_peer/address" ]; then `/usr/ccsp/EasyMesh/setup_veth_for_em.sh brlan0 eth1 false`;fi'
ExecStartPre=/bin/sh -c 'sleep 5'
ExecStart=/bin/sh -c '/usr/bin/ieee1905 -f ieee1905::al_sap=trace,ieee1905::cmdu_handler=trace,ieee1905::cmdu_proxy=trace,ieee1905::cmdu_observer=trace -i eth1_virt_peer >> /tmp/ieee1905_agent_log.txt &'
Restart=always


[Install]
WantedBy=multi-user.target

8. copy below contents to /lib/systemd/system/em_agent.service

Code Block
languagebash
titleem_agent
collapsetrue
[Unit]
Description=EasyMesh Agent service
After=onewifi.service ieee1905_em_agent.service

[Service]
Type=forking
WorkingDirectory=/usr/ccsp/EasyMesh
ExecStartPre=/bin/sh -c 'sleep 30'
ExecStartPre=/bin/sh -c '/usr/ccsp/EasyMesh/setup_ext_pre.sh'
ExecStart=/bin/sh -c '/usr/bin/onewifi_em_agent >> /tmp/em_agent.log &'
Restart=always


[Install]
WantedBy=multi-user.target

9. copy below contents to /usr/ccsp/EasyMesh/setup_ext_pre.sh and file permission should be 755

Code Block
languagebash
titlesetup_ext_pre
collapsetrue
#!/bin/sh

#Ensure onewifi is up and running
while [ ! -e /tmp/wifi_initialized ] && [ ! -e /tmp/wifi_dml_complete ] ; 
do   
   sleep 1; 
done

#Ensure backhaul connectivity is established
al_mac_addr=`cat /nvram/EasymeshCfg.json | grep AL_MAC_ADDR  | cut -d '"' -f4`
channel_exists=`iw dev | grep $al_mac_addr  -A 4 | grep channel | wc -l`
ssid_exists=`iw dev | grep $al_mac_addr -A 4 | grep ssid | wc -l`

while [ "$channel_exists" != 1 ] && [ "$ssid_exists" != 1 ] ;
do
  sleep 1;
  channel_exists=`iw dev | grep $al_mac_addr  -A 4 | grep channel | wc -l`
  ssid_exists=`iw dev | grep $al_mac_addr -A 4 | grep ssid | wc -l`
done

10. Reboot the device

After reboot,

11.Ensure mesh backhaul connectivity is established over 5G through wifi1.1 interface.

iw dev wifi1.1 info

123.Verify mesh backhaul connection in EM-Contrller side as well.

iw dev wifi1.1.sta<i> info
iw dev wifi1.1.sta<i> station dump ## This command gives information on connected client ie Extender1.

134. Wait for few minutes( for Agent to propagate SSID information from Controller to OneWifi in Extender1) and then check

  • Check all configured VAPs should be up and running with "iw dev" command
  • VAPs should be broadcasting default EasyMesh SSIDS (ie private_ssid, mesh_backhaul)

145. Set static IP for brlan0 interface in Extender1

Code Block
languagebash
ifconfig brlan0 10.0.0.215 netmask 255.255.255.0 up

156. Test the connectivity to EM-Controller through backhaul

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