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#
# Setup Networking
#
# Load utility functions
. ./functions.sh
# Install and setup hostname
install_readonly files/network/hostname $R/etc/hostname
sed -i "s/^rpi2-jessie/${HOSTNAME}/" $R/etc/hostname
# Install and setup hosts
install_readonly files/network/hosts $R/etc/hosts
sed -i "s/rpi2-jessie/${HOSTNAME}/" $R/etc/hosts
# Setup hostname entry with static IP
if [ "$NET_ADDRESS" != "" ] ; then
NET_IP=$(echo ${NET_ADDRESS} | cut -f 1 -d'/')
sed -i "s/^127.0.1.1/${NET_IP}/" $R/etc/hosts
fi
# Remove IPv6 hosts
if [ "$ENABLE_IPV6" = false ] ; then
sed -i -e "/::[1-9]/d" -e "/^$/d" $R/etc/hosts
fi
# Install hint about network configuration
install_readonly files/network/interfaces $R/etc/network/interfaces
# Install configuration for interface eth0
install_readonly files/network/eth.network $R/etc/systemd/network/eth.network
if [ "$ENABLE_DHCP" = true ] ; then
# Enable DHCP configuration for interface eth0
sed -i -e "s/DHCP=.*/DHCP=yes/" -e "/DHCP/q" $R/etc/systemd/network/eth.network
# Set DHCP configuration to IPv4 only
if [ "$ENABLE_IPV6" = false ] ; then
sed -i "s/DHCP=.*/DHCP=v4/" $R/etc/systemd/network/eth.network
fi
else # ENABLE_DHCP=false
# Set static network configuration for interface eth0
sed -i\
-e "s|DHCP=.*|DHCP=no|"\
-e "s|Address=\$|Address=${NET_ADDRESS}|"\
-e "s|Gateway=\$|Gateway=${NET_GATEWAY}|"\
-e "0,/DNS=\$/ s|DNS=\$|DNS=${NET_DNS_1}|"\
-e "0,/DNS=\$/ s|DNS=\$|DNS=${NET_DNS_2}|"\
-e "s|Domains=\$|Domains=${NET_DNS_DOMAINS}|"\
-e "0,/NTP=\$/ s|NTP=\$|NTP=${NET_NTP_1}|"\
-e "0,/NTP=\$/ s|NTP=\$|NTP=${NET_NTP_2}|"\
$R/etc/systemd/network/eth.network
fi
# Remove empty settings from network configuration
sed -i "/.*=\$/d" $R/etc/systemd/network/eth.network
# Enable systemd-networkd service
chroot_exec systemctl enable systemd-networkd
# Install host.conf resolver configuration
install_readonly files/network/host.conf $R/etc/host.conf
# Enable network stack hardening
if [ "$ENABLE_HARDNET" = true ] ; then
# Install sysctl.d configuration files
install_readonly files/sysctl.d/82-rpi-net-hardening.conf $R/etc/sysctl.d/82-rpi-net-hardening.conf
# Setup resolver warnings about spoofed addresses
sed -i "s/^# spoof warn/spoof warn/" $R/etc/host.conf
fi
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