Your Name
135 lines
3.1 KiB
Bash
135 lines
3.1 KiB
Bash
#!/bin/bash
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# Copyright 2018 Intel Corporation
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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SOFS_MNT=/var/sofs
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SOFS_MACDIR=${SOFS_MNT}/factory-settings/network/mac
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read_hw_mac() {
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local iface="$1"
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cat /sys/class/net/"$iface"/address 2>/dev/null
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}
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set_hw_mac() {
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local iface="$1"
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local mac="$2"
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ip link show dev "$iface" | grep -q "${iface}:.*\<UP\>" 2>/dev/null
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local up=$?
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[[ $up -eq 0 ]] && ip link set dev "$iface" down
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ip link set dev "$iface" address "$mac"
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[[ $up -eq 0 ]] && ip link set dev "$iface" up
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}
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read_sofs_mac() {
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local iface="$1"
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cat "${SOFS_MACDIR}/${iface}" 2>/dev/null
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}
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read_fw_env_mac() {
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local envname="$1"
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fw_printenv "$envname" 2>/dev/null | sed "s/^$envname=//"
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}
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set_fw_env_mac() {
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local envname="$1"
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local mac="$2"
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fw_setenv "$envname" "$mac"
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}
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read_eeprom_mac() {
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local iface="$1"
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a=0
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if [ "$iface" = "eth1" ];then
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a=8
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fi
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for ((i=a;i <= (7+a);i++));do
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i2cset -y 1 0x50 0x00 $i
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tmp=$(i2cget -y 1 0x50)
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local mac[i]=${tmp:2}
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local mac_str=$mac_str:${mac[$i]}
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done
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mac_str=${mac_str:1:17}
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echo "$mac_str" 2>/dev/null
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}
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create_macdir() {
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if [ -a ${SOFS_MACDIR} ]; then
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if [ ! -d ${SOFS_MACDIR} ]; then
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rm -rf ${SOFS_MACDIR}
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mkdir -p ${SOFS_MACDIR}
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fi
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else
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mkdir -p ${SOFS_MACDIR}
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fi
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return 0
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}
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mac_check() {
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local iface="$1"
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local envname="$2"
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# Read the MAC address in use by the NIC
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local hw_mac
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hw_mac=$(read_hw_mac "$iface")
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# Read the MAC address stored in the non-volatile file provisioned in
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# manufacturing.
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local sofs_mac
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sofs_mac=$(read_sofs_mac "$iface")
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local eeprom_mac
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eeprom_mac=$(read_eeprom_mac "$iface")
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if [ -n "$eeprom_mac" ] && [ -z "$sofs_mac" ]; then
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set_hw_mac "$iface" "$eeprom_mac"
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set_fw_env_mac "$envname" "$eeprom_mac"
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return $?
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elif [ -n "$sofs_mac" ] && [ "$hw_mac" != "$sofs_mac" ]; then
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# A factory assigned address was found, and it is newly assigned.
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# Update the active interface and save the new value to the u-boot
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# environment.
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set_hw_mac "$iface" "$sofs_mac"
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set_fw_env_mac "$envname" "$sofs_mac"
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return $?
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elif [ -n "$hw_mac" ]; then
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# Read the MAC address stored by U-Boot
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local fw_env_mac
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fw_env_mac=$(read_fw_env_mac "$envname")
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if [ -z "$fw_env_mac" ] || [ "$fw_env_mac" != "$hw_mac" ]; then
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set_fw_env_mac "$envname" "$hw_mac"
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return $?
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fi
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else
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# Could not identify a MAC address
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return 255
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fi
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return 0
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}
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create_macdir
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error=0
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first_error_seen=0
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while read -r IFACE UBDEV; do
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mac_check "$IFACE" "$UBDEV"
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error=$?
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if [ $error -ne 0 ] && [ $first_error_seen -eq 0 ]; then
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first_error_seen=$error
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fi
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done <<-END_CONF
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eth0 eth1addr
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eth1 ethaddr
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END_CONF
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exit $first_error_seen
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