# # Setup Networking # # Load utility functions . ./functions.sh # Install and setup hostname install_readonly files/network/hostname "${ETC_DIR}/hostname" sed -i "s/^rpi2-jessie/${HOSTNAME}/" "${ETC_DIR}/hostname" # Install and setup hosts install_readonly files/network/hosts "${ETC_DIR}/hosts" sed -i "s/rpi2-jessie/${HOSTNAME}/" "${ETC_DIR}/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}/" "${ETC_DIR}/hosts" fi # Remove IPv6 hosts if [ "$ENABLE_IPV6" = false ] ; then sed -i -e "/::[1-9]/d" -e "/^$/d" "${ETC_DIR}/hosts" fi # Install hint about network configuration install_readonly files/network/interfaces "${ETC_DIR}/network/interfaces" # Install configuration for interface eth0 install_readonly files/network/eth.network "${ETC_DIR}/systemd/network/eth.network" if [ "$ENABLE_DHCP" = true ] ; then # Enable DHCP configuration for interface eth0 sed -i -e "s/DHCP=.*/DHCP=yes/" -e "/DHCP/q" "${ETC_DIR}/systemd/network/eth.network" # Set DHCP configuration to IPv4 only if [ "$ENABLE_IPV6" = false ] ; then sed -i "s/DHCP=.*/DHCP=v4/" "${ETC_DIR}/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=${NET_NTP_2}|"\ "${ETC_DIR}/systemd/network/eth.network" fi # Remove empty settings from network configuration sed -i "/.*=\$/d" "${ETC_DIR}/systemd/network/eth.network" # Move systemd network configuration if required by Debian release stretch or buster if [ "$RELEASE" = "stretch" ] || [ "$RELEASE" = "buster" ] ; then mv -v "${ETC_DIR}/systemd/network/eth.network" "${LIB_DIR}/systemd/network/10-eth.network" rm -fr "${ETC_DIR}/systemd/network" fi # Enable systemd-networkd service chroot_exec systemctl enable systemd-networkd # Install host.conf resolver configuration install_readonly files/network/host.conf "${ETC_DIR}/host.conf" # Enable network stack hardening if [ "$ENABLE_HARDNET" = true ] ; then # Install sysctl.d configuration files install_readonly files/sysctl.d/82-rpi-net-hardening.conf "${ETC_DIR}/sysctl.d/82-rpi-net-hardening.conf" # Setup resolver warnings about spoofed addresses sed -i "s/^# spoof warn/spoof warn/" "${ETC_DIR}/host.conf" fi # Enable time sync if [ "NET_NTP_1" != "" ] ; then chroot_exec systemctl enable systemd-timesyncd.service fi # Download the firmware binary blob required to use the RPi3 wireless interface if [ "$ENABLE_WIRELESS" = true ] ; then if [ ! -d ${WLAN_FIRMWARE_DIR} ] ; then mkdir -p ${WLAN_FIRMWARE_DIR} fi # Create temporary directory for firmware binary blob temp_dir=$(as_nobody mktemp -d) # Fetch firmware binary blob as_nobody wget -q -O "${temp_dir}/brcmfmac43430-sdio.bin" "${WLAN_FIRMWARE_URL}/brcmfmac43430-sdio.bin" as_nobody wget -q -O "${temp_dir}/brcmfmac43430-sdio.txt" "${WLAN_FIRMWARE_URL}/brcmfmac43430-sdio.txt" # Move downloaded firmware binary blob mv "${temp_dir}/brcmfmac43430-sdio."* "${WLAN_FIRMWARE_DIR}/" # Remove temporary directory for firmware binary blob rm -fr "${temp_dir}" # Set permissions of the firmware binary blob chown root:root "${WLAN_FIRMWARE_DIR}/brcmfmac43430-sdio."* chmod 600 "${WLAN_FIRMWARE_DIR}/brcmfmac43430-sdio."* fi