Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 40411master
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# Copyright (C) 2006-2013 OpenWrt.org |
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find_mtd_index() { |
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local PART="$(grep "\"$1\"" /proc/mtd | awk -F: '{print $1}')" |
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local INDEX="${PART##mtd}" |
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echo ${INDEX} |
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} |
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find_mtd_chardev() { |
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local INDEX=$(find_mtd_index "$1") |
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local PREFIX=/dev/mtd |
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[ -d /dev/mtd ] && PREFIX=/dev/mtd/ |
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echo "${INDEX:+$PREFIX$INDEX}" |
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} |
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mtd_get_mac_ascii() |
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{ |
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local mtdname="$1" |
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local key="$2" |
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local part |
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local mac_dirty |
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part=$(find_mtd_part "$mtdname") |
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if [ -z "$part" ]; then |
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echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2 |
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return |
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fi |
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mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p') |
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# "canonicalize" mac |
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[ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty" |
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} |
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mtd_get_mac_binary() { |
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local mtdname="$1" |
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local offset="$2" |
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local part |
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part=$(find_mtd_part "$mtdname") |
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if [ -z "$part" ]; then |
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echo "mtd_get_mac_binary: partition $mtdname not found!" >&2 |
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return |
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fi |
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dd bs=1 skip=$offset count=6 if=$part 2>/dev/null | hexdump -v -n 6 -e '5/1 "%02x:" 1/1 "%02x"' |
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} |
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mtd_get_part_size() { |
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local part_name=$1 |
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local first dev size erasesize name |
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while read dev size erasesize name; do |
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name=${name#'"'}; name=${name%'"'} |
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if [ "$name" = "$part_name" ]; then |
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echo $((0x$size)) |
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break |
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fi |
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done < /proc/mtd |
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} |
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macaddr_add() { |
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local mac=$1 |
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local val=$2 |
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local oui=${mac%:*:*:*} |
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local nic=${mac#*:*:*:} |
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nic=$(printf "%06x" $((0x${nic//:/} + $val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/') |
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echo $oui:$nic |
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} |
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macaddr_setbit_la() |
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{ |
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local mac=$1 |
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printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:} |
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} |
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macaddr_2bin() |
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{ |
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local mac=$1 |
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echo -ne \\x${mac//:/\\x} |
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} |
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macaddr_canonicalize() |
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{ |
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local mac="$1" |
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local canon="" |
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[ ${#mac} -gt 17 ] && return |
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[ -n "${mac//[a-fA-F0-9\.: -]/}" ] && return |
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for octet in ${mac//[\.:-]/ }; do |
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case "${#octet}" in |
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1) |
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octet="0${octet}" |
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;; |
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2) |
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;; |
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4) |
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octet="${octet:0:2} ${octet:2:2}" |
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;; |
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12) |
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octet="${octet:0:2} ${octet:2:2} ${octet:4:2} ${octet:6:2} ${octet:8:2} ${octet:10:2}" |
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;; |
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*) |
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return |
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;; |
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esac |
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canon=${canon}${canon:+ }${octet} |
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done |
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[ ${#canon} -ne 17 ] && return |
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printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${canon// / 0x} 2>/dev/null |
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} |
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