mac80211: rework mac address allocation
[openwrt/svn-archive/archive.git] / package / mac80211 / files / lib / wifi / mac80211.sh
index 386bda8e5278158e6a0a0bac4bc13417c14b1f01..bb972114281c995e13608dfc2111e1b17e5550eb 100644 (file)
@@ -6,8 +6,6 @@ mac80211_hostapd_setup_base() {
        local ifname="$2"
 
        cfgfile="/var/run/hostapd-$phy.conf"
-       macfile="/var/run/hostapd-$phy.maclist"
-       [ -e "$macfile" ] && rm -f "$macfile"
 
        config_get device "$vif" device
        config_get country "$device" country
@@ -16,8 +14,17 @@ mac80211_hostapd_setup_base() {
        config_get beacon_int "$device" beacon_int
        config_get basic_rate_list "$device" basic_rate
        config_get_bool noscan "$device" noscan
+
+       hostapd_set_log_options base_cfg "$device"
+
        [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
-       [ "$channel" = auto ] && channel=
+
+       [ "$channel" = auto ] && {
+               channel=$(iw phy "$phy" info | \
+                       sed -ne '/MHz/ { /disabled\|passive\|radar/d; s/.*\[//; s/\].*//; p; q }')
+               config_set "$device" channel "$channel"
+       }
+
        [ -n "$hwmode" ] && {
                config_get hwmode_11n "$device" hwmode_11n
                [ -n "$hwmode_11n" ] && {
@@ -36,23 +43,10 @@ mac80211_hostapd_setup_base() {
                }
        }
 
-       config_get macfilter "$vif" macfilter
-       case "$macfilter" in
-               allow)
-                       append base_cfg "macaddr_acl=1" "$N"
-                       append base_cfg "accept_mac_file=$macfile" "$N"
-                       ;;
-               deny)
-                       append base_cfg "macaddr_acl=0" "$N"
-                       append base_cfg "deny_mac_file=$macfile" "$N"
-                       ;;
-       esac
-       config_get maclist "$vif" maclist
-       [ -n "$maclist" ] && {
-               for mac in $maclist; do
-                       echo "$mac" >> $macfile
-               done
-       }
+       local country_ie=0
+       [ -n "$country" ] && country_ie=1
+       config_get_bool country_ie "$device" country_ie "$country_ie"
+       [ "$country_ie" -gt 0 ] && append base_cfg "ieee80211d=1" "$N"
 
        local br brval brstr
        [ -n "$basic_rate_list" ] && {
@@ -62,7 +56,7 @@ mac80211_hostapd_setup_base() {
                        brstr="$brstr$brval"
                done
        }
-       
+
        cat >> "$cfgfile" <<EOF
 ctrl_interface=/var/run/hostapd-$phy
 driver=nl80211
@@ -167,35 +161,58 @@ mac80211_start_vif() {
        set_wifi_up "$vif" "$ifname"
 }
 
-find_mac80211_phy() {
-       local device="$1"
+lookup_phy() {
+       [ -n "$phy" ] && {
+               [ -d /sys/class/ieee80211/$phy ] && return
+       }
+
+       local devpath
+       config_get devpath "$device" path
+       [ -n "$devpath" -a -d "/sys/devices/$devpath/ieee80211" ] && {
+               phy="$(ls /sys/devices/$devpath/ieee80211 | grep -m 1 phy)"
+               [ -n "$phy" ] && return
+       }
 
        local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
-       config_get phy "$device" phy
-       [ -z "$phy" -a -n "$macaddr" ] && {
-               for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
-                       [ "$macaddr" = "$(cat /sys/class/ieee80211/${phy}/macaddress)" ] || continue
-                       config_set "$device" phy "$phy"
-                       break
+       [ -n "$macaddr" ] && {
+               for _phy in $(ls /sys/class/ieee80211 2>/dev/null); do
+                       [ "$macaddr" = "$(cat /sys/class/ieee80211/${_phy}/macaddress)" ] || continue
+                       phy="$_phy"
+                       return
                done
-               config_get phy "$device" phy
        }
+       phy=
+       return
+}
+
+find_mac80211_phy() {
+       local device="$1"
+
+       config_get phy "$device" phy
+       lookup_phy
        [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
                echo "PHY for wifi device $1 not found"
                return 1
        }
+       config_set "$device" phy "$phy"
+
+       config_get macaddr "$device" macaddr
        [ -z "$macaddr" ] && {
                config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
        }
+
        return 0
 }
 
 scan_mac80211() {
        local device="$1"
-       local adhoc sta ap monitor mesh
+       local adhoc sta ap monitor mesh disabled
 
        config_get vifs "$device" vifs
        for vif in $vifs; do
+               config_get_bool disabled "$vif" disabled 0
+               [ $disabled = 0 ] || continue
+
                config_get mode "$vif" mode
                case "$mode" in
                        adhoc|sta|ap|monitor|mesh)
@@ -245,11 +262,43 @@ 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 id="$1"
+       local ref="$2"
+       local mask="$3"
+
+       [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
+       local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
+
+       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() {
        local device="$1"
        config_get channel "$device" channel
@@ -259,6 +308,7 @@ enable_mac80211() {
        config_get distance "$device" distance
        config_get txantenna "$device" txantenna all
        config_get rxantenna "$device" rxantenna all
+       config_get antenna_gain "$device" antenna_gain 0
        config_get frag "$device" frag
        config_get rts "$device" rts
        find_mac80211_phy "$device" || return 0
@@ -269,12 +319,23 @@ enable_mac80211() {
        fixed=""
        local hostapd_ctrl=""
 
-       [ -n "$country" ] && iw reg set "$country"
+       [ -n "$country" ] && {
+               iw reg get | grep -q "^country $country:" || {
+                       iw reg set "$country"
+                       sleep 1
+               }
+       }
+
+       config_get chanbw "$device" chanbw
+       [ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath9k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw
+       [ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath5k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode
+
        [ "$channel" = "auto" -o "$channel" = "0" ] || {
                fixed=1
        }
 
        iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
+       iw phy "$phy" set antenna_gain $antenna_gain
 
        [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
        [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
@@ -286,13 +347,9 @@ enable_mac80211() {
 
        wifi_fixup_hwmode "$device" "g"
        for vif in $vifs; do
-               while [ -d "/sys/class/net/wlan$i" ]; do
-                       i=$(($i + 1))
-               done
-
                config_get ifname "$vif" ifname
                [ -n "$ifname" ] || {
-                       ifname="wlan$i"
+                       [ $i -gt 0 ] && ifname="wlan${phy#phy}-$i" || ifname="wlan${phy#phy}"
                }
                config_set "$vif" ifname "$ifname"
 
@@ -308,7 +365,6 @@ enable_mac80211() {
                                # Hostapd will handle recreating the interface and
                                # it's accompanying monitor
                                apidx="$(($apidx + 1))"
-                               i=$(($i + 1))
                                [ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
                        ;;
                        mesh)
@@ -325,7 +381,7 @@ enable_mac80211() {
                                iw phy "$phy" interface add "$ifname" type managed $wdsflag
                                config_get_bool powersave "$vif" powersave 0
                                [ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
-                               iwconfig "$ifname" power "$powersave"
+                               iw "$ifname" set power_save "$powersave"
                        ;;
                esac
 
@@ -333,17 +389,9 @@ 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 $(cat /sys/class/ieee80211/${phy}/address_mask))"
                        macidx="$(($macidx + 1))"
                }
                [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
@@ -364,11 +412,7 @@ enable_mac80211() {
                        [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
                fi
 
-               config_get vif_txpower "$vif" txpower
-               # use vif_txpower (from wifi-iface) to override txpower (from
-               # wifi-device) if the latter doesn't exist
-               txpower="${txpower:-$vif_txpower}"
-               [ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
+               i=$(($i + 1))
        done
 
        local start_hostapd=
@@ -399,85 +443,105 @@ enable_mac80211() {
        for vif in $vifs; do
                config_get mode "$vif" mode
                config_get ifname "$vif" ifname
-               [ ! "$mode" = "ap" ] || continue
-               ifconfig "$ifname" up
-
-               if [ ! "$mode" = "ap" ]; then
-                       ifconfig "$ifname" up
-                       case "$mode" in
-                               adhoc)
-                                       config_get bssid "$vif" bssid
-                                       config_get ssid "$vif" ssid
-                                       config_get beacon_int "$device" beacon_int
-                                       config_get basic_rate_list "$device" basic_rate
-                                       config_get encryption "$vif" encryption
-                                       config_get key "$vif" key 1
-                                       config_get mcast_rate "$vif" mcast_rate
-
-                                       local keyspec=""
-                                       [ "$encryption" == "wep" ] && {
-                                               case "$key" in
-                                                       [1234])
-                                                               local idx
-                                                               for idx in 1 2 3 4; do
-                                                                       local ikey
-                                                                       config_get ikey "$vif" "key$idx"
-
-                                                                       [ -n "$ikey" ] && {
-                                                                               ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
-                                                                               [ $idx -eq $key ] && ikey="d:$ikey"
-                                                                               append keyspec "$ikey"
-                                                                       }
-                                                               done
-                                                       ;;
-                                                       *) append keyspec "d:0:$(prepare_key_wep "$key")" ;;
-                                               esac
-                                       }
-
-                                       local br brval brsub brstr
-                                       [ -n "$basic_rate_list" ] && {
-                                               for br in $basic_rate_list; do
-                                                       brval="$(($br / 1000))"
-                                                       brsub="$((($br / 100) % 10))"
-                                                       [ "$brsub" -gt 0 ] && brval="$brval.$brsub"
-                                                       [ -n "$brstr" ] && brstr="$brstr,"
-                                                       brstr="$brstr$brval"
-                                               done
-                                       }
+               [ "$mode" = "ap" ] || ifconfig "$ifname" up
 
-                                       local mcval=""
-                                       [ -n "$mcast_rate" ] && {
-                                               mcval="$(($mcast_rate / 1000))"
-                                               mcsub="$(( ($mcast_rate / 100) % 10 ))"
-                                               [ "$mcsub" -gt 0 ] && mcval="$mcval.$mcsub"
-                                       }
+               config_get vif_txpower "$vif" txpower
+               # use vif_txpower (from wifi-iface) to override txpower (from
+               # wifi-device) if the latter doesn't exist
+               txpower="${txpower:-$vif_txpower}"
+               [ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
 
-                                       iw dev "$ifname" ibss join "$ssid" $freq \
-                                               ${fixed:+fixed-freq} $bssid \
-                                               ${beacon_int:+beacon-interval $beacon_int} \
-                                               ${brstr:+basic-rates $brstr} \
-                                               ${mcval:+mcast-rate $mcval} \
-                                               ${keyspec:+keys $keyspec}
-                               ;;
-                               sta)
+               case "$mode" in
+                       adhoc)
+                               config_get bssid "$vif" bssid
+                               config_get ssid "$vif" ssid
+                               config_get beacon_int "$device" beacon_int
+                               config_get basic_rate_list "$device" basic_rate
+                               config_get encryption "$vif" encryption
+                               config_get key "$vif" key 1
+                               config_get mcast_rate "$vif" mcast_rate
+                               config_get htmode "$device" htmode
+                               case "$htmode" in
+                                       HT20|HT40+|HT40-) ;;
+                                       *) htmode= ;;
+                               esac
+
+
+                               local keyspec=""
+                               [ "$encryption" == "psk" -o "$encryption" == "psk2" ] && {
                                        if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
-                                               wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" || {
+                                               wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" $freq $htmode || {
                                                        echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
                                                        # make sure this wifi interface won't accidentally stay open without encryption
                                                        ifconfig "$ifname" down
-                                                       continue
                                                }
+                                               mac80211_start_vif "$vif" "$ifname"
+                                               continue
                                        fi
-                               ;;
-                       esac
-                       mac80211_start_vif "$vif" "$ifname"
-               fi
+                               }
+
+                               [ "$encryption" == "wep" ] && {
+                                       case "$key" in
+                                               [1234])
+                                                       local idx
+                                                       for idx in 1 2 3 4; do
+                                                               local ikey
+                                                               config_get ikey "$vif" "key$idx"
+
+                                                               [ -n "$ikey" ] && {
+                                                                       ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
+                                                                       [ $idx -eq $key ] && ikey="d:$ikey"
+                                                                       append keyspec "$ikey"
+                                                               }
+                                                       done
+                                               ;;
+                                               *) append keyspec "d:0:$(prepare_key_wep "$key")" ;;
+                                       esac
+                               }
+
+                               local br brval brsub brstr
+                               [ -n "$basic_rate_list" ] && {
+                                       for br in $basic_rate_list; do
+                                               brval="$(($br / 1000))"
+                                               brsub="$((($br / 100) % 10))"
+                                               [ "$brsub" -gt 0 ] && brval="$brval.$brsub"
+                                               [ -n "$brstr" ] && brstr="$brstr,"
+                                               brstr="$brstr$brval"
+                                       done
+                               }
+
+                               local mcval=""
+                               [ -n "$mcast_rate" ] && {
+                                       mcval="$(($mcast_rate / 1000))"
+                                       mcsub="$(( ($mcast_rate / 100) % 10 ))"
+                                       [ "$mcsub" -gt 0 ] && mcval="$mcval.$mcsub"
+                               }
+
+                               iw dev "$ifname" ibss join "$ssid" $freq $htmode \
+                                       ${fixed:+fixed-freq} $bssid \
+                                       ${beacon_int:+beacon-interval $beacon_int} \
+                                       ${brstr:+basic-rates $brstr} \
+                                       ${mcval:+mcast-rate $mcval} \
+                                       ${keyspec:+keys $keyspec}
+                       ;;
+                       sta)
+                               if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then
+                                       wpa_supplicant_setup_vif "$vif" nl80211 "${hostapd_ctrl:+-H $hostapd_ctrl}" || {
+                                               echo "enable_mac80211($device): Failed to set up wpa_supplicant for interface $ifname" >&2
+                                               # make sure this wifi interface won't accidentally stay open without encryption
+                                               ifconfig "$ifname" down
+                                               continue
+                                       }
+                               fi
+                       ;;
+               esac
+               [ "$mode" = "ap" ] || mac80211_start_vif "$vif" "$ifname"
        done
 
 }
 
 
-check_device() {
+check_mac80211_device() {
        config_get phy "$1" phy
        [ -z "$phy" ] && {
                find_mac80211_phy "$1" >/dev/null || return 0
@@ -496,7 +560,7 @@ detect_mac80211() {
        done
        for dev in $(ls /sys/class/ieee80211); do
                found=0
-               config_foreach check_device wifi-device
+               config_foreach check_mac80211_device wifi-device
                [ "$found" -gt 0 ] && continue
 
                mode_11n=""
@@ -524,12 +588,20 @@ detect_mac80211() {
                }
                iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
 
+               if [ -x /usr/bin/readlink ]; then
+                       path="$(readlink -f /sys/class/ieee80211/${dev}/device)"
+                       path="${path##/sys/devices/}"
+                       dev_id="        option path     '$path'"
+               else
+                       dev_id="        option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)"
+               fi
+
                cat <<EOF
 config wifi-device  radio$devidx
        option type     mac80211
        option channel  ${channel}
-       option macaddr  $(cat /sys/class/ieee80211/${dev}/macaddress)
        option hwmode   11${mode_11n}${mode_band}
+$dev_id
 $ht_capab
        # REMOVE THIS LINE TO ENABLE WIFI:
        option disabled 1