Network Management

Overview

A Network Manager is a daemon which handles network management operations. It must implement the xyz.openbmc_project.Network.SystemConfiguration.interface and org.freedesktop.DBus.ObjectManager.

When the network manager daemon comes up, it should create objects implementing physical link/virtual interfaces such as xyz.openbmc_project.Network.EthernetInterface or xyz.openbmc_project.Network.VLANInterface on the system.

IP address(v4 and v6) objects must be children objects of the physical/virtual interface object.

Interfaces

  1. SystemConfiguration: This describes the system-specific parameters.
  2. EthernetInterface: This describes the interface-specific parameters.
  3. IP: This describes the IP address-specific parameters.
  4. IPProtocol: This describes the IP protocol type (IPv4/IPv6).
  5. VLANInterface: This describes the VLAN-specific properties.
  6. Bond: This describes the interface bonding parameters.

DbusObjects

Interface Objects

Interface objects can be physical as well as virtual.

If the object is a physical interface, it can't be deleted, but if it is a virtual interface object it can be deleted.

Example: /xyz/openbmc_project/network/eth0

IPAddress Objects

There can be multiple IP address objects under an interface object. These objects can be deleted by the delete function.

IPv4 objects will have the following D-Bus object path.

Example: /xyz/openbmc_project/network/eth0/ipv4/3fd41d13/

IPv6 objects will have the following D-Bus object path.

Example: /xyz/openbmc_project/network/eth0/ipv6/5dfghilp/

Conf Object

This object will have the system configuration related parameters.

Example: /xyz/openbmc_project/network/conf

UseCases

Configure IP address:

busctl call xyz.openbmc_project.Network /xyz/openbmc_project/network/<interface>
xyz.openbmc_project.Network.IP.Create IP ssys
"xyz.openbmc_project.Network.IP.Protocol.IPv4" "<ip>" <subnetmask>
"<networkgateway>"

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST -d
'{"data":["xyz.openbmc_project.Network.IP.Protocol.IPv4","<ip>",<subnetmask>,"<networkGateway>"]
}' https://<hostname/ip>/xyz/openbmc_project/network/eth0/action/IP

Configure Default Gateway

Get

busctl get-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/config
xyz.openbmc_project.Network.SystemConfiguration DefaultGateway

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET
https://<hostname/ip>/xyz/openbmc_project/network/config/attr/DefaultGateway

Set

busctl set-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/config
xyz.openbmc_project.Network.SystemConfiguration DefaultGateway s
"<DefaultGateway>"

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X PUT -d '{"data":
"x.x.x.x"}'
https://<hostname/ip>/xyz/openbmc_project/network/config/attr/DefaultGateway

NOTE: Since the system does not allow unpingable gateway address, make sure the gateway address is pingable.

Configure HostName

Get

busctl get-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/config
xyz.openbmc_project.Network.SystemConfiguration HostName

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET
https://<hostname/ip>/xyz/openbmc_project/network/config/attr/HostName

Set

busctl set-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/config
xyz.openbmc_project.Network.SystemConfiguration HostName s "<HostName>"

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X PUT -d '{"data":
"<hostname>"}'
https://<hostname/ip>/xyz/openbmc_project/network/config/attr/HostName

Delete IP address

busctl call xyz.openbmc_project.Network
/xyz/openbmc_project/network/<interface>/ipv4/<id>
xyz.openbmc_project.Object.Delete Delete

NOTE: How to get the ipv4/id: After creating the IP address object enumerate the network interface object.

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X DELETE
https://<hostname/ip>/xyz/openbmc_project/network/eth0/ipv4/fbfc29b

Configure DHCP

Get

busctl get-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/eth0 xyz.openbmc_project.Network.EthernetInterface
DHCPEnabled

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET
https://<hostname/ip>/xyz/openbmc_project/network/eth0/attr/DHCPEnabled

Set

busctl set-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/eth0 xyz.openbmc_project.Network.EthernetInterface
DHCPEnabled b 1

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X PUT -d '{"data":
1}' https://<hostname/ip>/xyz/openbmc_project/network/eth0/attr/DHCPEnabled

Configure MACAddress

Get

busctl get-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/eth0 xyz.openbmc_project.Network.MACAddress
MACAddress

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET
https://<hostname/ip>/xyz/openbmc_project/network/eth0/attr/MACAddress

Set

NOTE: MAC address should be LOCAL ADMIN MAC (2nd bit of first byte should be on).

busctl set-property xyz.openbmc_project.Network
/xyz/openbmc_project/network/eth0 xyz.openbmc_project.Network.MACAddress
MACAddress s "XX:XX:XX:XX:XX:XX"

curl -c cjar -b cjar -k -H "Content-Type: application/jon" -X PUT -d '{"data":
"XX:XX:XX:XX:XX:XX" }'
https://<hostname/ip>/xyz/openbmc_project/network/eth0/attr/MACAddress

Network factory reset

busctl call xyz.openbmc_project.Network /xyz/openbmc_project/network
xyz.openbmc_project.Common.FactoryReset Reset

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST -d
'{"data":[] }' https://<hostname/ip>/xyz/openbmc_project/network/action/Reset

VLAN

Create

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X POST -d
'{"data":["eth0",50] }'
https://<hostname/ip>/xyz/openbmc_project/network/action/VLAN

Delete

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X DELETE
https://<hostname/ip>/xyz/openbmc_project/network/eth0_50

busctl call xyz.openbmc_project.Network /xyz/openbmc_project/network/eth0_50
xyz.openbmc_project.Object.Delete Delete

Enumerate

curl -c cjar -b cjar -k -H "Content-Type: application/json" -X GET
https://<hostname/ip>/xyz/openbmc_project/network/eth0_50/enumerate

Configure IP on VLAN Interface

Please refer to the "Configure IP address" section.