1#!/bin/bash 2# Copyright 2018 Intel Corporation 3# 4# Licensed under the Apache License, Version 2.0 (the "License"); 5# you may not use this file except in compliance with the License. 6# You may obtain a copy of the License at 7# 8# http://www.apache.org/licenses/LICENSE-2.0 9# 10# Unless required by applicable law or agreed to in writing, software 11# distributed under the License is distributed on an "AS IS" BASIS, 12# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13# See the License for the specific language governing permissions and 14# limitations under the License. 15 16SOFS_MNT=/var/sofs 17SOFS_MACDIR=${SOFS_MNT}/factory-settings/network/mac 18 19read_hw_mac() { 20 local iface="$1" 21 cat /sys/class/net/"$iface"/address 2>/dev/null 22} 23 24set_hw_mac() { 25 local iface="$1" 26 local mac="$2" 27 ip link show dev "$iface" | grep -q "${iface}:.*\<UP\>" 2>/dev/null 28 local up=$? 29 [[ $up -eq 0 ]] && ip link set dev "$iface" down 30 ip link set dev "$iface" address "$mac" 31 [[ $up -eq 0 ]] && ip link set dev "$iface" up 32} 33 34read_sofs_mac() { 35 local iface="$1" 36 cat "${SOFS_MACDIR}/${iface}" 2>/dev/null 37} 38 39read_fw_env_mac() { 40 local envname="$1" 41 fw_printenv "$envname" 2>/dev/null | sed "s/^$envname=//" 42} 43 44set_fw_env_mac() { 45 local envname="$1" 46 local mac="$2" 47 fw_setenv "$envname" "$mac" 48} 49read_eeprom_mac() { 50 local iface="$1" 51 a=0 52 if [ "$iface" = "eth1" ];then 53 a=8 54 fi 55 for ((i=a;i <= (7+a);i++));do 56 i2cset -y 1 0x50 0x00 $i 57 tmp=$(i2cget -y 1 0x50) 58 local mac[i]=${tmp:2} 59 local mac_str=$mac_str:${mac[$i]} 60 done 61 mac_str=${mac_str:1:17} 62 echo "$mac_str" 2>/dev/null 63} 64 65create_macdir() { 66if [ -a ${SOFS_MACDIR} ]; then 67 if [ ! -d ${SOFS_MACDIR} ]; then 68 rm -rf ${SOFS_MACDIR} 69 mkdir -p ${SOFS_MACDIR} 70 fi 71else 72 mkdir -p ${SOFS_MACDIR} 73fi 74return 0 75} 76 77mac_check() { 78 local iface="$1" 79 local envname="$2" 80 81 # Read the MAC address in use by the NIC 82 local hw_mac 83 hw_mac=$(read_hw_mac "$iface") 84 85 # Read the MAC address stored in the non-volatile file provisioned in 86 # manufacturing. 87 local sofs_mac 88 sofs_mac=$(read_sofs_mac "$iface") 89 90 local eeprom_mac 91 eeprom_mac=$(read_eeprom_mac "$iface") 92 if [ -n "$eeprom_mac" ] && [ -z "$sofs_mac" ]; then 93 set_hw_mac "$iface" "$eeprom_mac" 94 set_fw_env_mac "$envname" "$eeprom_mac" 95 return $? 96 elif [ -n "$sofs_mac" ] && [ "$hw_mac" != "$sofs_mac" ]; then 97 # A factory assigned address was found, and it is newly assigned. 98 # Update the active interface and save the new value to the u-boot 99 # environment. 100 set_hw_mac "$iface" "$sofs_mac" 101 set_fw_env_mac "$envname" "$sofs_mac" 102 return $? 103 elif [ -n "$hw_mac" ]; then 104 # Read the MAC address stored by U-Boot 105 local fw_env_mac 106 fw_env_mac=$(read_fw_env_mac "$envname") 107 if [ -z "$fw_env_mac" ] || [ "$fw_env_mac" != "$hw_mac" ]; then 108 set_fw_env_mac "$envname" "$hw_mac" 109 return $? 110 fi 111 else 112 # Could not identify a MAC address 113 return 255 114 fi 115 116 return 0 117} 118 119create_macdir 120 121error=0 122first_error_seen=0 123 124while read -r IFACE UBDEV; do 125 mac_check "$IFACE" "$UBDEV" 126 error=$? 127 if [ $error -ne 0 ] && [ $first_error_seen -eq 0 ]; then 128 first_error_seen=$error 129 fi 130done <<-END_CONF 131 eth0 eth1addr 132 eth1 ethaddr 133END_CONF 134exit $first_error_seen 135