/branches/18.06.1/package/base-files/files/lib/functions/system.sh |
@@ -0,0 +1,155 @@ |
# Copyright (C) 2006-2013 OpenWrt.org |
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get_mac_binary() { |
local path="$1" |
local offset="$2" |
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if [ -z "$path" ]; then |
echo "get_mac_binary: file $path not found!" >&2 |
return |
fi |
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hexdump -v -n 6 -s $offset -e '5/1 "%02x:" 1/1 "%02x"' $path 2>/dev/null |
} |
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find_mtd_chardev() { |
local INDEX=$(find_mtd_index "$1") |
local PREFIX=/dev/mtd |
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[ -d /dev/mtd ] && PREFIX=/dev/mtd/ |
echo "${INDEX:+$PREFIX$INDEX}" |
} |
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mtd_get_mac_ascii() { |
local mtdname="$1" |
local key="$2" |
local part |
local mac_dirty |
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part=$(find_mtd_part "$mtdname") |
if [ -z "$part" ]; then |
echo "mtd_get_mac_ascii: partition $mtdname not found!" >&2 |
return |
fi |
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mac_dirty=$(strings "$part" | sed -n 's/^'"$key"'=//p') |
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# "canonicalize" mac |
[ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty" |
} |
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mtd_get_mac_text() { |
local mtdname=$1 |
local offset=$2 |
local part |
local mac_dirty |
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part=$(find_mtd_part "$mtdname") |
if [ -z "$part" ]; then |
echo "mtd_get_mac_text: partition $mtdname not found!" >&2 |
return |
fi |
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if [ -z "$offset" ]; then |
echo "mtd_get_mac_text: offset missing!" >&2 |
return |
fi |
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mac_dirty=$(dd if="$part" bs=1 skip="$offset" count=17 2>/dev/null) |
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# "canonicalize" mac |
[ -n "$mac_dirty" ] && macaddr_canonicalize "$mac_dirty" |
} |
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mtd_get_mac_binary() { |
local mtdname="$1" |
local offset="$2" |
local part |
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part=$(find_mtd_part "$mtdname") |
get_mac_binary "$part" "$offset" |
} |
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mtd_get_mac_binary_ubi() { |
local mtdname="$1" |
local offset="$2" |
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. /lib/upgrade/nand.sh |
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local ubidev=$(nand_find_ubi $CI_UBIPART) |
local part=$(nand_find_volume $ubidev $1) |
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if [ -z "$part" ]; then |
echo "mtd_get_mac_binary: ubi volume $mtdname not found!" >&2 |
return |
fi |
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hexdump -v -n 6 -s $offset -e '5/1 "%02x:" 1/1 "%02x"' /dev/$part 2>/dev/null |
} |
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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 |
} |
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macaddr_add() { |
local mac=$1 |
local val=$2 |
local oui=${mac%:*:*:*} |
local nic=${mac#*:*:*:} |
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nic=$(printf "%06x" $((0x${nic//:/} + $val & 0xffffff)) | sed 's/^\(.\{2\}\)\(.\{2\}\)\(.\{2\}\)/\1:\2:\3/') |
echo $oui:$nic |
} |
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macaddr_setbit_la() { |
local mac=$1 |
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printf "%02x:%s" $((0x${mac%%:*} | 0x02)) ${mac#*:} |
} |
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macaddr_2bin() { |
local mac=$1 |
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echo -ne \\x${mac//:/\\x} |
} |
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macaddr_canonicalize() { |
local mac="$1" |
local canon="" |
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mac=$(echo -n $mac | tr -d \") |
[ ${#mac} -gt 17 ] && return |
[ -n "${mac//[a-fA-F0-9\.: -]/}" ] && return |
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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 |
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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 |
} |