1 # Copyright (C) 2006-2013 OpenWrt.org
4 . /usr/share/libubox/jshn.sh
10 if ! [ -e "$path" ]; then
11 echo "get_mac_binary: file $path not found!" >&2
15 hexdump -v -n 6 -s $offset -e '5/1 "%02x:" 1/1 "%02x"' $path 2>/dev/null
19 local basepath="/proc/device-tree"
20 local macdevice="$(cat "$basepath/aliases/label-mac-device" 2>/dev/null)"
23 [ -n "$macdevice" ] || return
25 macaddr=$(get_mac_binary "$basepath/$macdevice/mac-address" 0 2>/dev/null)
26 [ -n "$macaddr" ] || macaddr=$(get_mac_binary "$basepath/$macdevice/local-mac-address" 0 2>/dev/null)
31 get_mac_label_json() {
32 local cfg="/etc/board.json"
35 [ -s "$cfg" ] || return
38 json_load "$(cat $cfg)"
39 if json_is_a system object; then
41 json_get_var macaddr label_macaddr
49 local macaddr=$(get_mac_label_dt)
51 [ -n "$macaddr" ] || macaddr=$(get_mac_label_json)
57 local INDEX=$(find_mtd_index "$1")
60 [ -d /dev/mtd ] && PREFIX=/dev/mtd/
61 echo "${INDEX:+$PREFIX$INDEX}"
70 part=$(find_mtd_part "$mtdname")
71 if [ -z "$part" ]; then
72 echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2
76 mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p')
79 [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"
88 part=$(find_mtd_part "$mtdname")
89 if [ -z "$part" ]; then
90 echo "mtd_get_mac_text: partition $mtdname not found!" >&2
94 if [ -z "$offset" ]; then
95 echo "mtd_get_mac_text: offset missing!" >&2
99 mac_dirty=$(dd if="$part" bs=1 skip="$offset" count=17 2>/dev/null)
102 [ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty"
105 mtd_get_mac_binary() {
110 part=$(find_mtd_part "$mtdname")
111 get_mac_binary "$part" "$offset"
114 mtd_get_mac_binary_ubi() {
118 . /lib/upgrade/nand.sh
120 local ubidev=$(nand_find_ubi $CI_UBIPART)
121 local part=$(nand_find_volume $ubidev $1)
123 get_mac_binary "/dev/$part" "$offset"
126 mtd_get_part_size() {
128 local first dev size erasesize name
129 while read dev size erasesize name; do
130 name=${name#'"'}; name=${name%'"'}
131 if [ "$name" = "$part_name" ]; then
141 local oui=${mac%:*:*:*}
142 local nic=${mac#*:*:*:}
144 nic=$(printf "%06x" $((0x${nic//:/} + val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/')
152 echo ${mac:9:2}$sep${mac:12:2}$sep${mac:15:2}
155 macaddr_setbit_la() {
158 printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:}
164 echo -ne \\x${mac//:/\\x}
167 macaddr_canonicalize() {
171 mac=$(echo -n $mac | tr -d \")
172 [ ${#mac} -gt 17 ] && return
173 [ -n "${mac//[a-fA-F0-9\.: -]/}" ] && return
175 for octet in ${mac//[\.:-]/ }; do
183 octet="${octet:0:2} ${octet:2:2}"
186 octet="${octet:0:2} ${octet:2:2} ${octet:4:2} ${octet:6:2} ${octet:8:2} ${octet:10:2}"
192 canon=${canon}${canon:+ }${octet}
195 [ ${#canon} -ne 17 ] && return
197 printf "%02x:%02x:%02x:%02x:%02x:%02x" 0x${canon// / 0x} 2>/dev/null