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qsdk/package/base-files/files/lib/functions/system.sh
# Copyright (C) 2006-2013 OpenWrt.org



find_mtd_chardev() {

local INDEX=$(find_mtd_index "$1")

local PREFIX=/dev/mtd



[ -d /dev/mtd ] && PREFIX=/dev/mtd/

echo "${INDEX:+$PREFIX$INDEX}"

}



mtd_get_mac_ascii()

{

local mtdname="$1"

local key="$2"

local part

local mac_dirty



part=$(find_mtd_part "$mtdname")

if [ -z "$part" ]; then

echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2

return

fi



mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p')



# "canonicalize" mac

[ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"

}



mtd_get_mac_binary() {

local mtdname="$1"

local offset="$2"

local part



part=$(find_mtd_part "$mtdname")

if [ -z "$part" ]; then

echo "mtd_get_mac_binary: partition $mtdname not found!" >&2

return

fi



dd bs=1 skip=$offset count=6 if=$part 2>/dev/null | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"'

}



mtd_get_part_size() {

local part_name=$1

local first dev size erasesize name

while read dev size erasesize name; do

name=${name#'"'}; name=${name%'"'}

if [ "$name" = "$part_name" ]; then

echo $((0x$size))

break

fi

done < /proc/mtd

}



macaddr_add() {

local mac=$1

local val=$2

local oui=${mac%:*:*:*}

local nic=${mac#*:*:*:}



nic=$(printf "%06x" $((0x${nic//:/} + $val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/')

echo $oui:$nic

}



macaddr_setbit_la()

{

local mac=$1



printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:}

}



macaddr_2bin()

{

local mac=$1



echo -ne \\x${mac//:/\\x}

}



macaddr_canonicalize()

{

local mac="$1"

local canon=""



mac=$(echo -n $mac | tr -d \")

[ ${#mac} -gt 17 ] && return

[ -n "${mac//[a-fA-F0-9\.: -]/}" ] && return



for octet in ${mac//[\.:-]/ }; do

case "${#octet}" in

1)

octet="0${octet}"

;;

2)

;;

4)

octet="${octet:0:2} ${octet:2:2}"

;;

12)

octet="${octet:0:2} ${octet:2:2} ${octet:4:2} ${octet:6:2} ${octet:8:2} ${octet:10:2}"

;;

*)

return

;;

esac

canon=${canon}${canon:+ }${octet}

done



[ ${#canon} -ne 17 ] && return



printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${canon// / 0x} 2>/dev/null

}



get_nhx_mac()

{

local PART=$(grep "0:ART" /proc/mtd | awk -F: '{print $1}')

local fac_mac="00:00:00:00:00:00"

if [ -n "$PART" ]; then

local INDEX="${PART##mtd}"

fac_mac=$(nhxmac $INDEX)

fi



if [ "$fac_mac" == "00:00:00:00:00:00" ]; then

fac_mac="5C:B1:5F:71:00:00"

elif [ "$fac_mac" == "ff:ff:ff:ff:ff:ff" ]; then

fac_mac="5C:B1:5F:71:00:00"

fi



echo -n "$fac_mac"

}
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nvram set nhxmac

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