#!/bin/sh
# -*- mode: shell-script; indent-tabs-mode: nil; sh-basic-offset: 4; -*-
# ex: ts=8 sw=4 sts=4 et filetype=sh

# NFS root might have reached here before /tmp/net.ifaces was written
udevadm settle --timeout=30

if [ -e /tmp/bridge.info ]; then
    . /tmp/bridge.info
fi

if [ -e /tmp/vlan.info ]; then
    . /tmp/vlan.info
fi

mkdir -m 0755 -p /tmp/ifcfg/
mkdir -m 0755 -p /tmp/ifcfg-leases/

get_vid() {
    case "$1" in
    vlan*)
        echo ${1#vlan}
        ;;
    *.*)
        echo ${1##*.}
        ;;
    esac
}

for netup in /tmp/net.*.did-setup ; do
    [ -f $netup ] || continue

    netif=${netup%%.did-setup}
    netif=${netif##*/net.}
    [ -e /tmp/ifcfg/ifcfg-$netif ] && continue
    unset bridge
    unset bond
    unset bondslaves
    unset bondname
    unset bondoptions
    unset uuid
    unset ip
    unset gw
    unset mtu
    unset mask
    unset macaddr
    unset slave
    unset ethname
    [ -e /tmp/bond.${netif}.info ] && . /tmp/bond.${netif}.info

    uuid=$(cat /proc/sys/kernel/random/uuid)
    if [ "$netif" = "$bridgename" ]; then
        bridge=yes
    elif [ "$netif" = "$bondname" ]; then
    # $netif can't be bridge and bond at the same time
        bond=yes
    fi
    if [ "$netif" = "$vlanname" ]; then
        vlan=yes
    fi
    cat /sys/class/net/$netif/address > /tmp/net.$netif.hwaddr
    {
        echo "# Generated by dracut initrd"
        echo "NAME='$netif'"
        if [ -f /tmp/net.$netif.has_ibft_config ]; then
            echo "STARTMODE='nfsroot'"
        else
            echo "STARTMODE='auto'"
        fi

        local bootproto="static"
        if [ -f /tmp/leaseinfo.${netif}.dhcp.ipv6 ]; then
            bootproto="dhcp6"
        fi
        if [ -f /tmp/leaseinfo.${netif}.dhcp.ipv4 ]; then
            if [ "$bootproto" = "dhcp6" ]; then
                bootproto="dhcp"
            else
                bootproto="dhcp4"
            fi
        fi

        echo "BOOTPROTO='$bootproto'"

        if [ "$bootproto" = "static" ]; then
            # If we've booted with static ip= lines, the override file is there
            [ -e /tmp/net.$netif.override ] && . /tmp/net.$netif.override
            echo "IPADDR='$ip'"
            if [ -n "$mask" ]; then
                if strstr "$mask" "."; then
                    echo "NETMASK='$mask'"
                else
                    echo "PREFIXLEN='$mask'"
                fi
            fi
            if [ -n "$gw" ]; then
                echo "GATEWAY='$gw'"
            fi
        fi
        [ -n "$mtu" ] && echo "MTU='$mtu'"
    } > /tmp/ifcfg/ifcfg-$netif

    # bridge needs different things written to ifcfg
    if [ -z "$bridge" ] && [ -z "$bond" ] && [ -z "$vlan" ]; then
        # standard interface
        {
            if [ -n "$macaddr" ]; then
                echo "LLADDR='$macaddr'"
            else
                echo "LLADDR='$(cat /sys/class/net/$netif/address)'"
            fi
            echo "INTERFACETYPE='Ethernet'"
        } >> /tmp/ifcfg/ifcfg-$netif
    fi

    if [ -n "$vlan" ]; then
        {
            echo "INTERFACETYPE='Vlan'"
            echo "VLAN_ID='$(get_vid $vlanname)'"
            echo "ETHERDEVICE='$phydevice'"
        } >> /tmp/ifcfg/ifcfg-$netif
    fi

    if [ -n "$bond" ] ; then
        # bond interface
        {
            # This variable is an indicator of a bond interface for initscripts
            echo "BONDING_MASTER='yes'"
            echo "BONDING_MODULE_OPTS='$bondoptions'"
            echo "INTERFACETYPE='Bond'"
        } >> /tmp/ifcfg/ifcfg-$netif

        local i=0
        for slave in $bondslaves ; do
            echo "BONDING_SLAVE_$i='$slave'" >> /tmp/ifcfg/ifcfg-$netif
            i=$((i+1))
            # write separate ifcfg file for the raw eth interface
            {
                echo "# Generated by dracut initrd"
                echo "NAME='$slave'"
                echo "INTERFACETYPE='Ethernet'"
                echo "STARTMODE='hotplug'"
                echo "BOOTPROTO='none'"
                echo "# ETHTOOL=''"
            } >> /tmp/ifcfg/ifcfg-$slave
        done
    fi

    if [ -n "$bridge" ] ; then
        # bridge
        {
            echo "INTERFACETYPE='Bridge'"
            echo "BRIDGE='yes'"
            echo "BRIDGE_STP='off'"
            echo "BRIDGE_FORWARDDELAY='0'"
            echo -n "BRIDGE_PORTS='"

        } >> /tmp/ifcfg/ifcfg-$netif

        if [ "$ethname" = "$bondname" ] ; then
            {
                for slave in $bondslaves ; do
                    echo -n "$bondname "
                done
                echo "'"
            } >> /tmp/ifcfg/ifcfg-$netif
        else
            echo "$ethname'" >> /tmp/ifcfg/ifcfg-$netif
        fi
    fi
done

# Pass network opts
mkdir -m 0755 -p /run/initramfs/state/etc/sysconfig/network
mkdir -m 0755 -p /run/initramfs/state/var/run/wicked
echo "files /etc/sysconfig/network" >> /run/initramfs/rwtab
echo "files /var/run/wicked" >> /run/initramfs/rwtab
{
    cp /tmp/net.* /run/initramfs/
    cp /tmp/net.$netif.resolv.conf /run/initramfs/state/etc/resolv.conf
    copytree /tmp/ifcfg /run/initramfs/state/etc/sysconfig/network
    cp /tmp/leaseinfo.* /run/initramfs/state/var/run/wicked/
} > /dev/null 2>&1