#!/bin/sh append DRIVERS "mac80211" mac80211_hostapd_setup_base() { local phy="$1" local ifname="$2" cfgfile="/var/run/hostapd-$phy.conf" config_get device "$vif" device config_get country "$device" country config_get hwmode "$device" hwmode config_get channel "$device" channel [ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device" [ "$channel" = auto ] && channel= [ -n "$hwmode" ] && { config_get hwmode_11n "$device" hwmode_11n [ -n "$hwmode_11n" ] && { hwmode="$hwmode_11n" append base_cfg "ieee80211n=1" "$N" config_get htmode "$device" htmode config_get ht_capab_list "$device" ht_capab case "$htmode" in HT20|HT40+|HT40-) ht_capab="[$htmode]";; *)ht_capab=;; esac for cap in $ht_capab_list; do ht_capab="$ht_capab[$cap]" done [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N" } } cat > "$cfgfile" <<EOF ctrl_interface=/var/run/hostapd-$phy driver=nl80211 wmm_ac_bk_cwmin=4 wmm_ac_bk_cwmax=10 wmm_ac_bk_aifs=7 wmm_ac_bk_txop_limit=0 wmm_ac_bk_acm=0 wmm_ac_be_aifs=3 wmm_ac_be_cwmin=4 wmm_ac_be_cwmax=10 wmm_ac_be_txop_limit=0 wmm_ac_be_acm=0 wmm_ac_vi_aifs=2 wmm_ac_vi_cwmin=3 wmm_ac_vi_cwmax=4 wmm_ac_vi_txop_limit=94 wmm_ac_vi_acm=0 wmm_ac_vo_aifs=2 wmm_ac_vo_cwmin=2 wmm_ac_vo_cwmax=3 wmm_ac_vo_txop_limit=47 wmm_ac_vo_acm=0 tx_queue_data3_aifs=7 tx_queue_data3_cwmin=15 tx_queue_data3_cwmax=1023 tx_queue_data3_burst=0 tx_queue_data2_aifs=3 tx_queue_data2_cwmin=15 tx_queue_data2_cwmax=63 tx_queue_data2_burst=0 tx_queue_data1_aifs=1 tx_queue_data1_cwmin=7 tx_queue_data1_cwmax=15 tx_queue_data1_burst=3.0 tx_queue_data0_aifs=1 tx_queue_data0_cwmin=3 tx_queue_data0_cwmax=7 tx_queue_data0_burst=1.5 ${hwmode:+hw_mode=$hwmode} ${channel:+channel=$channel} ${country:+country_code=$country} $base_cfg EOF } mac80211_hostapd_setup_bss() { local phy="$1" local vif="$2" hostapd_cfg= cfgfile="/var/run/hostapd-$phy.conf" config_get ifname "$vif" ifname if [ -f "$cfgfile" ]; then append hostapd_cfg "bss=$ifname" "$N" else mac80211_hostapd_setup_base "$phy" "$ifname" append hostapd_cfg "interface=$ifname" "$N" fi local net_cfg bridge net_cfg="$(find_net_config "$vif")" [ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")" config_set "$vif" bridge "$bridge" hostapd_set_bss_options hostapd_cfg "$vif" config_get_bool wds "$vif" wds 0 [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N" config_get macaddr "$vif" macaddr config_get_bool hidden "$vif" hidden 0 cat >> /var/run/hostapd-$phy.conf <<EOF $hostapd_cfg wmm_enabled=1 bssid=$macaddr ignore_broadcast_ssid=$hidden EOF } mac80211_start_vif() { local vif="$1" local ifname="$2" local net_cfg net_cfg="$(find_net_config "$vif")" [ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg" set_wifi_up "$vif" "$ifname" } find_mac80211_phy() { local device="$1" local macaddr="$(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 done config_get phy "$device" phy } [ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || { echo "PHY for wifi device $1 not found" return 1 } [ -z "$macaddr" ] && { config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)" } return 0 } scan_mac80211() { local device="$1" local adhoc sta ap monitor mesh config_get vifs "$device" vifs for vif in $vifs; do config_get mode "$vif" mode case "$mode" in adhoc|sta|ap|monitor|mesh) append $mode "$vif" ;; *) echo "$device($vif): Invalid mode, ignored."; continue;; esac done config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}" } disable_mac80211() ( local device="$1" find_mac80211_phy "$device" || return 0 config_get phy "$device" phy set_wifi_down "$device" # kill all running hostapd and wpa_supplicant processes that # are running on atheros/mac80211 vifs for pid in `pidof hostapd`; do grep -E "$phy" /proc/$pid/cmdline >/dev/null && \ kill $pid done include /lib/network for wdev in $(ls /sys/class/ieee80211/${phy}/device/net 2>/dev/null); do [ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1 for pid in `pidof wpa_supplicant`; do grep "$wdev" /proc/$pid/cmdline >/dev/null && \ kill $pid done ifconfig "$wdev" down 2>/dev/null unbridge "$dev" iw dev "$wdev" del done 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}' } enable_mac80211() { local device="$1" config_get channel "$device" channel config_get vifs "$device" vifs config_get txpower "$device" txpower config_get country "$device" country config_get distance "$device" distance find_mac80211_phy "$device" || return 0 config_get phy "$device" phy local i=0 local macidx=0 local apidx=0 fixed="" [ -n "$country" ] && iw reg set "$country" [ "$channel" = "auto" -o "$channel" = "0" ] || { fixed=1 } [ -n "$distance" ] && iw phy "$phy" set distance "$distance" export channel fixed # convert channel to frequency local freq="$(get_freq "$phy" "${fixed:+$channel}")" wifi_fixup_hwmode "$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$i" } config_set "$vif" ifname "$ifname" config_get mode "$vif" mode config_get ssid "$vif" ssid # It is far easier to delete and create the desired interface case "$mode" in adhoc) iw phy "$phy" interface add "$ifname" type adhoc ;; ap) # 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 "$ifname" type managed ;; mesh) config_get mesh_id "$vif" mesh_id iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id" ;; monitor) iw phy "$phy" interface add "$ifname" type monitor ;; sta) local wdsflag config_get_bool wds "$vif" wds 0 [ "$wds" -gt 0 ] && wdsflag="4addr on" iw phy "$phy" interface add "$ifname" type managed $wdsflag config_get_bool powersave "$vif" powersave 0 [ "$powersave" -gt 0 ] && powersave="on" || powersave="off" iwconfig "$ifname" power "$powersave" ;; esac # All interfaces must have unique mac addresses # which can either be explicitly set in the device # section, or automatically generated config_get macaddr "$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" macidx="$(($macidx + 1))" } [ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac" config_set "$vif" macaddr "$vif_mac" # !! ap !! # # ALL ap functionality will be passed to hostapd # # !! station !! # # ALL station functionality will be passed to wpa_supplicant # if [ ! "$mode" = "ap" ]; then # We attempt to set the channel for all interfaces, although # mac80211 may not support it or the driver might not yet # for ap mode this is handled by hostapd [ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel" fi # txpower is not yet implemented in iw 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" ] || iwconfig "$ifname" txpower "${txpower%%.*}" config_get frag "$vif" frag if [ -n "$frag" ]; then iw phy "$phy" set frag "${frag%%.*}" fi config_get rts "$vif" rts if [ -n "$rts" ]; then iw phy "$phy" set rts "${rts%%.*}" fi done local start_hostapd= rm -f /var/run/hostapd-$phy.conf for vif in $vifs; do config_get mode "$vif" mode [ "$mode" = "ap" ] || continue mac80211_hostapd_setup_bss "$phy" "$vif" start_hostapd=1 done [ -n "$start_hostapd" ] && { hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || { echo "Failed to start hostapd for $phy" return } sleep 2 for vif in $vifs; do config_get mode "$vif" mode config_get ifname "$vif" ifname [ "$mode" = "ap" ] || continue mac80211_start_vif "$vif" "$ifname" done } 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 mac80211_start_vif "$vif" "$ifname" case "$mode" in adhoc) config_get bssid "$vif" bssid config_get ssid "$vif" ssid iw dev "$ifname" ibss join "$ssid" $freq ${fixed:+fixed-freq} $bssid ;; sta) if eval "type wpa_supplicant_setup_vif" 2>/dev/null >/dev/null; then wpa_supplicant_setup_vif "$vif" wext || { 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 fi done } check_device() { config_get phy "$1" phy [ -z "$phy" ] && { find_mac80211_phy "$1" >/dev/null || return 0 config_get phy "$1" phy } [ "$phy" = "$dev" ] && found=1 } detect_mac80211() { devidx=0 config_load wireless while :; do config_get type "radio$devidx" type [ -n "$type" ] || break devidx=$(($devidx + 1)) done for dev in $(ls /sys/class/ieee80211); do found=0 config_foreach check_device wifi-device [ "$found" -gt 0 ] && continue mode_11n="" mode_band="g" channel="5" ht_cap=0 for cap in $(iw phy "$dev" info | grep 'Capabilities:' | cut -d: -f2); do ht_cap="$(($ht_cap | $cap))" done ht_capab=""; [ "$ht_cap" -gt 0 ] && { mode_11n="n" append ht_capab " option htmode HT20" "$N" list=" list ht_capab" [ "$(($ht_cap & 1))" -eq 1 ] && append ht_capab "$list LDPC" "$N" [ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N" [ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N" [ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N" } iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; } 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} $ht_capab # REMOVE THIS LINE TO ENABLE WIFI: option disabled 1 config wifi-iface option device radio$devidx option network lan option mode ap option ssid OpenWrt option encryption none EOF devidx=$(($devidx + 1)) done }