# Copyright (C) 2006-2013 OpenWrt.org get_mac_binary() { local path="$1" local offset="$2" if ! [ -e "$path" ]; then echo "get_mac_binary: file $path not found!" >&2 return fi hexdump -v -n 6 -s $offset -e '5/1 "%02x:" 1/1 "%02x"' $path 2>/dev/null } find_mtd_chardev() { local INDEX=$(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_text() { local mtdname=$1 local offset=$(($2)) local part local mac_dirty part=$(find_mtd_part "$mtdname") if [ -z "$part" ]; then echo "mtd_get_mac_text: partition $mtdname not found!" >&2 return fi if [ -z "$offset" ]; then echo "mtd_get_mac_text: offset missing!" >&2 return fi mac_dirty=$(dd if="$part" bs=1 skip="$offset" count=17 2>/dev/null) # "canonicalize" mac [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty" } mtd_get_mac_binary() { local mtdname="$1" local offset="$2" local part part=$(find_mtd_part "$mtdname") get_mac_binary "$part" "$offset" } mtd_get_mac_binary_ubi() { local mtdname="$1" local offset="$2" . /lib/upgrade/nand.sh local ubidev=$(nand_find_ubi $CI_UBIPART) local part=$(nand_find_volume $ubidev $1) get_mac_binary "/dev/$part" "$offset" } 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 }