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#!/bin/bash
#
# This script is used to get the MAC Address from FRU Inventory information
ETHERNET_INTERFACE="eth1"
ETHERNET_NCSI="eth0"
ENV_ETH="eth1addr"
ENV_MAC_ADDR=$(fw_printenv | grep $ENV_ETH)
# Workaround to dhcp NC-SI eth0 interface when BMC boot up
ifconfig ${ETHERNET_NCSI} down
ifconfig ${ETHERNET_NCSI} up
# Read FRU Board Custom Field 1 to get the MAC address
CUSTOM_FIELD_1=$(busctl get-property xyz.openbmc_project.FruDevice /xyz/openbmc_project/FruDevice/Mt_Jade_Motherboard xyz.openbmc_project.FruDevice BOARD_INFO_AM1)
MAC_ADDR=$(echo "$CUSTOM_FIELD_1" | cut -d "\"" -f 2)
# Check if BMC MAC address is exported
if [ -z "${MAC_ADDR}" ]; then
echo "ERROR: No BMC MAC address is detected from FRU Inventory information!"
# Return 1 so that systemd knows the service failed to start
exit 1
fi
# Check if BMC MAC address is exported
if [[ $ENV_MAC_ADDR =~ $MAC_ADDR ]]; then
echo "WARNING: BMC MAC address already exist!"
exit 0
fi
# Request to update the MAC address
fw_setenv ${ENV_ETH} "${MAC_ADDR}"
if fw_setenv ${ENV_ETH} "${MAC_ADDR}";
then
echo "ERROR: Fail to set MAC address to ${ENV_ETH}"
exit 1
fi
# Request to restart the service
ifconfig ${ETHERNET_INTERFACE} down
if ! ifconfig ${ETHERNET_INTERFACE} hw ether "${MAC_ADDR}";
then
echo "ERROR: Can not update MAC ADDR to ${ETHERNET_INTERFACE}"
exit 1
fi
ifconfig ${ETHERNET_INTERFACE} up
echo "Successfully update the MAC address ${MAC_ADDR} to ${ENV_ETH} and ${ETHERNET_INTERFACE}"
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