mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-21 06:33:41 +00:00
469e347f19
For many devices, MAC addresses cannot be retrieved via the device tree alias. To still provide the label MAC address for those, this implements a second mechanism that will put the address into uci config. Note that this stores the actual MAC address, whereas in DTS we reference the bearing device. This is based on the work of Rosy Song <rosysong@rosinson.com> Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
162 lines
3.2 KiB
Bash
162 lines
3.2 KiB
Bash
# 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"' $path 2>/dev/null
|
|
}
|
|
|
|
get_mac_label() {
|
|
local basepath="/proc/device-tree"
|
|
local macdevice="$(cat "$basepath/aliases/label-mac-device" 2>/dev/null)"
|
|
local macaddr
|
|
|
|
[ -n "$macdevice" ] && macaddr=$(get_mac_binary "$basepath/$macdevice/mac-address" 0 2>/dev/null)
|
|
[ -n "$macaddr" ] || macaddr=$(get_mac_binary "$basepath/$macdevice/local-mac-address" 0 2>/dev/null)
|
|
[ -n "$macaddr" ] || macaddr=$(uci -q get system.@system[0].label_macaddr)
|
|
echo $macaddr
|
|
}
|
|
|
|
find_mtd_chardev() {
|
|
local INDEX=$(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
|
|
}
|