69abf630cf
Extracted from http://patchwork.openwrt.org/patch/5716/ Signed-off-by: Forest Crossman <cyrozap@gmail.com> Signed-off-by: Gabor Juhos <juhosg@openwrt.org> SVN-Revision: 41639
113 lines
2.0 KiB
Bash
113 lines
2.0 KiB
Bash
# 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
|
|
}
|