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  • All configured VAPs should be UP and Running
  • VAPs should be broadcasting EasyMesh default SSIDs(eg, private_ssid, mesh_backhaul)

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Extender

Build Instructions

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

Extender 1 + STAR Topology

1.Please ensure below processes are running in Ext1

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Code Block
languagebash
ping 10.0.0.1 -c 5

Extender2 (For Daisy-Chain

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)

Prerequisites - One Time Process

  1. Delete the dnsmasq binary.
Code Block
languagebash
rm /usr/bin/dnsmasq

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

Code Block
languagebash
route del default gw

31. Copy below content to /nvram/EasymeshCfg.json file.

Code Block
languagebash
titleExtender2 EasymeshCfg.json
collapsetrue
{
	"AL_MAC_ADDR":	"00:0c:43:26:60:21",
	"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
titleExtender2 InterfaceMap.json
collapsetrue
 {
    "PhyList": [
        {
            "Index": 0,
            "RadioList": [
                 {
                    "Index": 2,
                    "RadioName": "wifi2",
                    "InterfaceList": [
                        {
                            "InterfaceName": "wifi2",
                            "Bridge": "brlan0",
                            "vlanId": 0,
                            "vapIndex": 3,
                            "vapName": "private_ssid_6g"
                        }
                    ]
                },
                {
                    "Index": 1,
                    "RadioName": "wifi1",
                    "InterfaceList": [
                        {
                            "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_sta_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
titleExtender2 onewifi_pre_script.sh
collapsetrue
 #!/bin/sh
sleep 5

#To update al_mac_addr in EasyMeshCfg.json to avoid onewifi restarting during fresh boot-up
#wan_mac="$(cat /sys/class/ieee80211/phy0/macaddress)"
#old_al_mac_addr=`cat /nvram/EasymeshCfg.json | grep AL_MAC_ADDR  | cut -d '"' -f4`
#if [ "$old_al_mac_addr" == "00:00:00:00:00:00" ]; then
#  sed -i "s/$old_al_mac_addr/$wan_mac/g" /nvram/EasymeshCfg.json
#fi  

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

#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$mac + 16))
wifi0_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
mac_incr=$(($mac_incr + 1))
wifi0_1_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
mac_incr=$(($mac_incr + 1))
wifi1_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
#Increment again by 1 to get wifi2 address
mac_incr=$(($mac_incr + 1))
wifi2_mac=$(printf "%012x" $mac_incr | sed 's/../&:/g;s/:$//')
#print the mac address
echo $wifi0_mac
echo $wifi0_1_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 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 wifi2 address $wifi2_mac
ifconfig wifi0 up
ifconfig wifi1 up
ifconfig wifi2 up

exit 0

6. Disable the below services

Code Block
languagebash
systemctl disable ieee1905_em_ctrl.service
systemctl disable em_ctrl

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

Code Block
languagebash
titleExt2 ieee1905_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
titleExt2 em_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
titleExt2 setup_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,

2. Edit the AL_MAC_ADDR  in /nvram/EasymeshCfg.json. Here, wifi0.1 interface mac address as AL_MAC_ADDR

3. Reboot the device

After reboot,

411. Ensure mesh backhaul connectivity is established over 2.4G through wifi0.1 interface.

Code Block
languagebash
iw dev wifi0.1 info

125. Verify mesh backhaul connection in Extender1 side as well.

Code Block
languagebash
iw dev wifi0.1.sta<i> info
iw dev wifi0.1.sta<i> station dump ## This command gives information on connected client ie Extender2.


136. Wait for few minutes( for Agent to propagate SSID information from Controller to OneWifi in Extender2) 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)

147. Set static IP for brlan0 interface in Extender2

Code Block
languagebash
ifconfig brlan0 10.0.0.210 netmask 255.255.255.0 up

158. Test the connectivity to EM-Controller through backhaul

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Test the connectivity with wireless clients.

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Prerequisites - One Time Process

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