NAME¶

wicked redfish - redfish network host interface configuration utilities

SYNOPSIS¶

wicked redfish [options] <action>

DESCRIPTION¶

The Redfish Network Host Interface defined by the DMTF Redfish Host Interface Specification enables the software running on a computer system to access the Redfish Service, which can be used to manage that computer system.

Machines supporting a Redfish Network Host Interface, provide an SMBIOS (3.0) Management Controller Host Interface (Type 42) structure containing a Device Description of the Network (Type 40h) Interface and “Redfish over IP” Protocol (Type 04h) records with the configuration to use for this network interface, visible in e.g. `dmidecode -t 42' output.

The Redfish Network Host Interface needs to be enabled and/or configured in the Management Controller (BMC, firmware, ...) – please consult the machine vendor documentation for further details. With enabled Redfish Network Host Interface in the Management Controller, the SMBIOS structure and the network interface (usb, pci) are available/appear in the system (e.g. `hwinfo --netcard' or `lsusb', `lspci', `ip link show').

The `wicked redfish' command implements utility actions decoding the SMBIOS structures to configure the Network Host Interface with these settings, used by other parts of wicked.

The automatic setup of the Redfish Network Host Interface from SMBIOS settings with wicked is (currently) disabled by default, use the:

   wicked redfish enable
    

command to enable it once.

When enabled, the `wicked ifup', `wicked ifreload', `wicked show-config' and related commands to setup/shutdown interfaces as well as the `systemctl' (start, stop, reload) actions to the `network.service' (alias to an enabled `wicked.service') will consider the Redfish Network Host Interfaces.

OPTIONS¶

--help, -h

show short options and actions description and exit

ACTIONS¶

enable

Enables the redfish network host interface setup.

disable

Disables the redfish network host interface setup.

EXAMPLE¶

An Redfish Network Host Interface SMBIOS settings using DHCPv4 by dmidecode:

# dmidecode -t 42
Management Controller Host Interface


    Host Interface Type: Network


    Device Type: USB


        idVendor: 0x03f0


        idProduct: 0x2927


        Protocol ID: 04 (Redfish over IP)


            Service UUID: 8388efa4-6501-53a1-a1da-b6ee02cebbdf


            Host IP Assignment Type: DHCP


            Host IP Address Format: IPv4


            Redfish Service IP Discovery Type: DHCP


            Redfish Service IP Address Format: IPv4


            Redfish Service Hostname: virt152-sp
    

The network interface name (as identified in the `hwinfo --netcard') output is:

# ip link show dev usb0
11: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000


    link/ether 3a:d8:86:7c:01:64 brd ff:ff:ff:ff:ff:ff
    

The network interface name(s) can be identified/resolved by wicked:

# wicked redfish list-ifnames
usb0
    

The Redfish Network Host Interface SMBIOS settings decoded by wicked to an interface config:

# wicked redfish show-config
<interface origin="firmware:redfish">


  <name>usb0</name>


  <scripts>


    <post-up>


      <script>wicked:redfish-update</script>


    </post-up>


    <pre-down>


      <script>wicked:redfish-update</script>


    </pre-down>


  </scripts>


  <ipv4>


    <enabled>true</enabled>


  </ipv4>


  <ipv4:dhcp>


    <enabled>true</enabled>


    <update/>


  </ipv4:dhcp>
</interface>
    

Once the Redfish Network Host Interface setup with wicked has been enabled with:

# wicked redfish enable
    

The `wicked show-config' command contains the (same as above) wicked configuration for the usb0 interface and commands setting up interfaces are considering it:

# wicked ifreload all
usb0            device-ready
usb0            up
# wicked ifstatus usb0
usb0            up


      link:     #11, state up, mtu 1500


      type:     ethernet, hwaddr 3a:d8:86:7c:01:64


      config:   firmware:redfish


      leases:   ipv4 dhcp granted


      addr:     ipv4 16.1.15.2/30 [dhcp]
# grep redfish-localhost /etc/hosts
16.1.15.1   redfish-localhost virt152-sp
    

After disabling of the Redfish Network Host Interface setup with wicked, the `wicked show-config' command stops to show the interface configuration and the commands to setup interfaces will (shut it down if still active and) stop to consider it in interface setup:

# wicked redfish disable
# wicked ifreload all
usb0            device-ready
# grep redfish-localhost /etc/hosts
# wicked ifstatus usb0
usb0            device-unconfigured


      link:     #11, state down, mtu 1500


      type:     ethernet, hwaddr 3a:d8:86:7c:01:64
# ip link show dev usb0
11: usb0: <BROADCAST,MULTICAST> mtu 1500 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 1000


    link/ether 3a:d8:86:7c:01:64 brd ff:ff:ff:ff:ff:ff
# wicked ifreload all
wicked: ifreload: no configuration changes to reload
    

NOTES¶

The implementation is based on the following specifications:

•

DMTF DSP0134, System Management BIOS Reference Specification (SMBIOS), Version 3.5.0

•

DMTF DSP0270, Redfish Host Interface Specification, Version 1.3.0

and covers decoding of the (raw) SMBIOS Type 42 structures from sysfs files (/sys/firmware/dmi/tables/smbios_entry_point and DMI) with:

•

Network Host Interface (40h) Device Description Data for:

•

Multiple Redfish over IP Protocol records with

•

Merge of multiple SMBIOS structures for the same device

Not yet implemented are:

•

“Preferred IP” Address in AutoConfigure

•

PCI/PCIe Network Interface v2

•

Credential Bootstrapping

COPYRIGHT¶

Copyright (C) 2022 SUSE LLC

BUGS¶

Please report bugs as described at http://bugs.opensuse.org

SEE ALSO¶

wicked(8), wicked-config(5)

AUTHORS¶

Marius Tomaschewski.