Init network

[Vincinator]

Hi,

This PR uses the crate little-dude/netlink to initialize network devices

• Added network initialization for the libvirt-pid1 initialization flow
  • Initialize lo device
    • assign ::1/128
    • assign 127.0.0.1/8
  • Initialize eth0 device
    • assign fe80::2/64
  • Print network info after initialization
• Functions used in above initialization flow are a starting point for other scenarios
• Possibility to create sriov devices for a given network interface

How to test

As usual, copy paste steps from hack/README.md:

make build-container
make kernel
make initramfs

# create `vm-br0` bridge on your machine:
make network

# run auraed in a VM as pid 1:
make virsh-start virsh-console virsh-stop

# exit VM console with Ctrl+]

On a second terminal you are now able to ping the auraed node via

# name of network interface "vm-br0" is set up by make network
ping fe80::2%vm-br0 

Screenshot

[Vincinator]

Implemented your feedback

I removed the init_iface functions completely now. I think the initialization code of a given scenario can directly call the network functions.