diff options
| -rw-r--r-- | package/mac80211/files/lib/wifi/mac80211.sh | 34 |
1 files changed, 24 insertions, 10 deletions
diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh index 4c214e84c5..bb97211428 100644 --- a/package/mac80211/files/lib/wifi/mac80211.sh +++ b/package/mac80211/files/lib/wifi/mac80211.sh @@ -270,19 +270,33 @@ get_freq() { } mac80211_generate_mac() { - local off="$1" - local mac="$2" + local id="$1" + local ref="$2" local mask="$3" - local oIFS="$IFS"; IFS=":"; set -- $mac; IFS="$oIFS" - local b2mask=0x00 - [ $off -gt 0 ] && - [ "$mask" = "00:00:00:00:00:00" -o $(( 0x${mask%%:*} & 0x2 )) -gt 0 ] && b2mask=0x02 + [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff"; + local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS" - printf "%02x:%s:%s:%s:%02x:%02x" \ - $(( 0x$1 | $b2mask )) $2 $3 $4 \ - $(( (0x$5 + ($off / 0x100)) % 0x100 )) \ - $(( (0x$6 + $off) % 0x100 )) + local mask1=$1 + local mask6=$6 + + local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS" + [ "$((0x$mask1))" -gt 0 ] && { + b1=$(((0x$1 | 0x2) ^ ($id << 2))) + printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6 + return + } + + [ "$((0x$mask6))" -lt 255 ] && { + printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id )) + return + } + + off2=$(( (0x$6 + $id) / 0x100 )) + printf "%s:%s:%s:%s:%02x:%02x" \ + $1 $2 $3 $4 \ + $(( (0x$5 + $off2) % 0x100 )) \ + $(( (0x$6 + $id) % 0x100 )) } enable_mac80211() { |