[package] mac80211: rework mac address generation for virtual interfaces; set locally...

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@28298 3c298f89-4303-0410-b956-a3cf2f4a3e73

diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh
index 4b25428..7254909 100644 (file)
--- a/package/mac80211/files/lib/wifi/mac80211.sh
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -262,11 +262,27 @@ disable_mac80211() (
 
        return 0
 )
+
 get_freq() {
        local phy="$1"
        local chan="$2"
        iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
 }
+
+mac80211_generate_mac() {
+       local off="$1"
+       local mac="$2"
+       local oIFS="$IFS"; IFS=":"; set -- $mac; IFS="$oIFS"
+
+       local b2mask=0x00
+       [ $off -gt 0 ] && b2mask=0x02
+
+       printf "%02x:%s:%s:%s:%02x:%02x" \
+               $(( 0x$1 | $b2mask )) $2 $3 $4 \
+               $(( (0x$5 + ($off / 0x100)) % 0x100 )) \
+               $(( (0x$6 + $off) % 0x100 ))
+}
+
 enable_mac80211() {
        local device="$1"
        config_get channel "$device" channel
@@ -353,17 +369,9 @@ enable_mac80211() {
                # which can either be explicitly set in the device
                # section, or automatically generated
                config_get macaddr "$device" macaddr
-               local mac_1="${macaddr%%:*}"
-               local mac_2="${macaddr#*:}"
-
                config_get vif_mac "$vif" macaddr
                [ -n "$vif_mac" ] || {
-                       if [ "$macidx" -gt 0 ]; then
-                               offset="$(( 2 + $macidx * 4 ))"
-                       else
-                               offset="0"
-                       fi
-                       vif_mac="$( printf %02x $((0x$mac_1 + $offset)) ):$mac_2"
+                       vif_mac="$(mac80211_generate_mac $macidx $macaddr)"
                        macidx="$(($macidx + 1))"
                }
                [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"