Custom interface to the device 'status' menu

[Daniele Cerasuolo]

hello everyone, 

I have a device with a bond interface used as a main ip address interface but openwisp does not recognize it. I looked at the monitoring module code and I think the bond interface does not belong to the default scheme. I would like to implement part to add a custom interface to the schema, could you give me some pointers on where to start? 

[Federico Capoano]

Hi Daniele,

Could you share the OpenWrt UCI configuration sample for your use case so we can better understand what you're trying to do?

What do you mean by "main ip address"? Is this the management interface address? Or what exactly?

The library which deals with configurations is here:
https://github.com/openwisp/netjsonconfig/

Docs: https://netjsonconfig.openwisp.org/en/latest/

Federico

[Daniele Cerasuolo]

We created a bond interface formed by the eth1 and eth2 interfaces, set with an IP.
We defined the bond interface (named "bond0") as follow:
"
ip link set eth1 down
ip link set eth2 down
echo "+bond0" > /sys/class/net/bonding_masters
echo active-backup > /sys/class/net/bond0/bonding/mode
echo "+eth1" > /sys/class/net/bond0/bonding/slaves
echo "+eth2" > /sys/class/net/bond0/bonding/slaves
echo 5 > /sys/devices/virtual/net/bond0/bonding/num_grat_arp
echo 50 > /sys/class/net/bond0/bonding/miimon
echo "eth1:1" > /sys/class/net/bond0/bonding/queue_id
echo "eth2:2" > /sys/class/net/bond0/bonding/queue_id
echo eth1 > /sys/devices/virtual/net/bond0/bonding/primary
echo "1" > /sys/devices/virtual/net/bond0/bonding/all_slaves_active
ip link set eth1 up
ip link set eth2 up
ip link set dev bond0 up
ip addr add 192.168.101.2/24 brd 192.168.101.255 dev bond0

"

the file /etc/config/network is:

config interface 'loopback'
        option device 'lo'
        option proto 'static'
        option ipaddr '127.0.0.1'
        option netmask '255.0.0.0'

config globals 'globals'
        option packet_steering '1'
        option ula_prefix 'xxxxxxxxxxxx::/48'

config device 'device1'
        option name 'br-lan'
        list ports 'lan0'
        list ports 'lan1'
        list ports 'lan2'
        list ports 'lan3'
        option type 'bridge'

config interface 'lan'
        option device 'br-lan'
        option proto 'static'
        option ipaddr '192.168.1.1'
        option netmask '255.255.255.0'
        option ip6assign '60'
        option dns '8.8.8.8'

config device 'device2'
        option macaddr 'xxxxxxxxxxxxx'
        option name 'eth2'

config interface 'plc1'
        option device 'eth2'
        option proto 'static'
        option ipaddr '192.168.30.10'
        option netmask '255.255.255.0'
        option ip6assign '60'

config interface 'plc0'
        option device 'eth1'
        option proto 'static'
        option ipaddr '192.168.20.10'
        option netmask '255.255.255.0'
        option ip6assign '60'

The device is connected to openwisp via the ip address associated with the bond0 interface , I would like to add this information to the status menu.

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Daniele Cerasuolo

Via Diocleziano, 107 

80125 – Napoli (NA) , Italy 

Mail: d.cer...@gematica.com 

Website: www.gematica.com 

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[Federico Capoano]

Hi Daniele,

OpenWrt doesn't "see" interfaces which are not defined in its network configuration.

Try defining a new interface called "bond0" and set it to "proto" none. That may help OpenWrt to see this interface and allow openwisp to report its address to the controller.

I hope it helps.

Federico

[Daniele Cerasuolo]

I tried defining the interface in the /etc/config/network file with both proto to 'none' and 'static' but openwisp still doesn't recognize it. 

As you can see in the attached screen, the interface is recognized using the 'ifconfig' command.

 Is there anything else I can try or should something be changed in the code? If yes, in what way?

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[f.capoano]

Sorry for my late response.

I am not sure how to help here, the OpenWISP Monitoring package relies on the system to get the interface information from OpenWrt, so the key is to make sure ubus returns this.

More info:

- https://openwrt.org/docs/techref/ubus

- https://github.com/openwisp/openwrt-openwisp-monitoring/blob/dcf0b7d5ada317b7e5abd082f7bc22ce609087ae/openwisp-monitoring/files/lib/openwisp-monitoring/interfaces.lua#L12-L15

I hope this helps.

Federico