mac80211: make channel bandwidth setting generic
[openwrt.git] / package / mac80211 / files / lib / wifi / mac80211.sh
index 13d6584..6b907b6 100644 (file)
@@ -13,9 +13,21 @@ mac80211_hostapd_setup_base() {
        config_get country "$device" country
        config_get hwmode "$device" hwmode
        config_get channel "$device" channel
+       config_get beacon_int "$device" beacon_int
+       config_get basic_rate_list "$device" basic_rate
        config_get_bool noscan "$device" noscan
+       config_get_bool short_preamble "$device" short_preamble "0"
+
+       hostapd_set_log_options base_cfg "$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" ] && {
@@ -34,6 +46,11 @@ mac80211_hostapd_setup_base() {
                }
        }
 
+       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" "$N"
+
        config_get macfilter "$vif" macfilter
        case "$macfilter" in
                allow)
@@ -51,6 +68,18 @@ mac80211_hostapd_setup_base() {
                        echo "$mac" >> $macfile
                done
        }
+
+       local br brval brstr
+       [ -n "$basic_rate_list" ] && {
+               for br in $basic_rate_list; do
+                       brval="$(($br / 100))"
+                       [ -n "$brstr" ] && brstr="$brstr "
+                       brstr="$brstr$brval"
+               done
+       }
+
+       append base_cfg "preamble=$short_preamble" "$N"
+       
        cat >> "$cfgfile" <<EOF
 ctrl_interface=/var/run/hostapd-$phy
 driver=nl80211
@@ -92,8 +121,10 @@ tx_queue_data0_cwmax=7
 tx_queue_data0_burst=1.5
 ${hwmode:+hw_mode=$hwmode}
 ${channel:+channel=$channel}
+${beacon_int:+beacon_int=$beacon_int}
 ${country:+country_code=$country}
 ${noscan:+noscan=$noscan}
+${brstr:+basic_rates=$brstr}
 $base_cfg
 
 EOF
@@ -127,6 +158,8 @@ mac80211_hostapd_setup_bss() {
        local macaddr hidden maxassoc wmm
        config_get macaddr "$vif" macaddr
        config_get maxassoc "$vif" maxassoc
+       config_get dtim_period "$vif" dtim_period
+       config_get max_listen_int "$vif" max_listen_int
        config_get_bool hidden "$vif" hidden 0
        config_get_bool wmm "$vif" wmm 1
        cat >> /var/run/hostapd-$phy.conf <<EOF
@@ -134,6 +167,8 @@ $hostapd_cfg
 wmm_enabled=$wmm
 bssid=$macaddr
 ignore_broadcast_ssid=$hidden
+${dtim_period:+dtim_period=$dtim_period}
+${max_listen_int:+max_listen_interval=$max_listen_int}
 ${maxassoc:+max_num_sta=$maxassoc}
 EOF
 }
@@ -174,10 +209,13 @@ find_mac80211_phy() {
 
 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)
@@ -227,11 +265,27 @@ 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
@@ -251,12 +305,22 @@ 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 $rxantenna
+       iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
 
        [ -n "$distance" ] && iw phy "$phy" set distance "$distance"
        [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
@@ -268,13 +332,9 @@ 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"
 
@@ -290,7 +350,6 @@ 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 "$ifname" type managed
                        ;;
                        mesh)
@@ -307,7 +366,7 @@ enable_mac80211() {
                                iw phy "$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
 
@@ -315,17 +374,9 @@ 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"
@@ -346,11 +397,7 @@ 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=
@@ -381,74 +428,104 @@ 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 bintval "$vif" bintval
-                                       config_get basicrates "$vif" basicrates
-                                       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 "$key")" ;;
-                                               esac
-                                       }
+               [ "$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 \
-                                               ${bintval:+beacon-interval $bintval} \
-                                               ${basicrates:+basic-rates $basicrates} \
-                                               ${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 "$vif" mcast_rate
+
+                               local keyspec=""
+                               [ "$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}" $freq || {
                                                        echo "enable_mac80211($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
-                       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"
+                               }
+
+                               config_get htmode "$device" htmode
+                               case "$htmode" in
+                                       HT20|HT40+|HT40-|NOHT) ;;
+                                       *) htmode= ;;
+                               esac
+
+                               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
@@ -467,7 +544,7 @@ 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=""