diff options
Diffstat (limited to 'package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh')
| -rw-r--r-- | package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh | 443 |
1 files changed, 443 insertions, 0 deletions
diff --git a/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh new file mode 100644 index 0000000000..eefe1fed5d --- /dev/null +++ b/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh @@ -0,0 +1,443 @@ +#!/bin/sh +. /lib/netifd/netifd-wireless.sh +. /lib/netifd/hostapd.sh + +init_wireless_driver "$@" + +MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links + mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries + mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout + mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode + mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor + mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval + mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout" +MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding" +MP_CONFIG_STRING="mesh_power_mode" + +drv_mac80211_init_device_config() { + hostapd_common_add_device_config + + config_add_string path phy macaddr + config_add_string hwmode + config_add_int beacon_int chanbw frag rts + config_add_int rxantenna txantenna antenna_gain txpower + config_add_boolean noscan + config_add_array ht_capab +} + +drv_mac80211_init_iface_config() { + hostapd_common_add_bss_config + + config_add_string macaddr + + config_add_boolean wds powersave + config_add_int maxassoc + config_add_int max_listen_int + config_add_int dtim_interval + + # mesh + config_add_int $MP_CONFIG_INT + config_add_boolean $MP_CONFIG_BOOL + config_add_string $MP_CONFIG_STRING +} + +mac80211_hostapd_setup_base() { + local phy="$1" + + json_select config + + [ "$auto_channel" -gt 0 ] && channel=acs_survey + + [ "$enable_ht" -gt 0 ] && { + json_get_vars noscan htmode + json_get_values ht_capab_list ht_capab + + append base_cfg "ieee80211n=1" "$N" + + ht_capab= + [ -n "$htmode" ] && ht_capab="[$htmode]" + for cap in $ht_capab_list; do + ht_capab="$ht_capab[$cap]" + done + + [ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N" + } + + hostapd_prepare_device_config "$hostapd_conf_file" nl80211 + cat >> "$hostapd_conf_file" <<EOF +${channel:+channel=$channel} +${noscan:+noscan=$noscan} +$base_cfg + +EOF + json_select .. +} + +mac80211_hostapd_setup_bss() { + local phy="$1" + local ifname="$2" + local macaddr="$3" + local type="$4" + + hostapd_cfg= + append hostapd_cfg "$type=$ifname" "$N" + + hostapd_set_bss_options hostapd_cfg "$vif" || return 1 + json_get_vars wds dtim_period max_listen_int + + [ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N" + [ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N" + + cat >> /var/run/hostapd-$phy.conf <<EOF +$hostapd_cfg +bssid=$macaddr +${dtim_period:+dtim_period=$dtim_period} +${max_listen_int:+max_listen_interval=$max_listen_int} +EOF +} + +mac80211_generate_mac() { + local phy="$1" + local id="${macidx:-0}" + + local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)" + local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)" + + [ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff"; + local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS" + + local mask1=$1 + local mask6=$6 + + local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS" + + macidx=$(($id + 1)) + [ "$((0x$mask1))" -gt 0 ] && { + b1="0x$1" + [ "$id" -gt 0 ] && \ + b1=$(($b1 ^ ((($id - 1) << 2) | 0x2))) + 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 + $id) % 0x100 )) +} + +find_phy() { + [ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0 + [ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && { + phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)" + [ -n "$phy" ] && return 0 + } + [ -n "$macaddr" ] && { + for phy in $(ls /sys/class/ieee80211 2>/dev/null); do + grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0 + done + } + return 1 +} + +mac80211_check_ap() { + has_ap=1 +} + +mac80211_prepare_vif() { + json_select config + + json_get_vars ifname mode ssid wds powersave macaddr + + [ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}" + if_idx=$((${if_idx:-0} + 1)) + + set_default wds 0 + set_default powersave 0 + + json_select .. + + [ -n "$macaddr" ] || { + macaddr="$(mac80211_generate_mac $phy)" + macidx="$(($macidx + 1))" + } + + json_add_object data + json_add_string ifname "$ifname" + json_close_object + json_select config + + # It is far easier to delete and create the desired interface + case "$mode" in + adhoc) + iw phy "$phy" interface add "$ifname" type adhoc + ;; + ap) + # Hostapd will handle recreating the interface and + # subsequent virtual APs belonging to the same PHY + if [ -n "$hostapd_ctrl" ]; then + type=bss + else + type=interface + fi + + mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return + + [ -n "$hostapd_ctrl" ] || { + iw phy "$phy" interface add "$ifname" type managed + hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}" + } + ;; + mesh) + json_get_vars key mesh_id + if [ -n "$key" ]; then + iw phy "$phy" interface add "$ifname" type mp + else + iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id" + fi + ;; + monitor) + iw phy "$phy" interface add "$ifname" type monitor + ;; + sta) + local wdsflag= + staidx="$(($staidx + 1))" + [ "$wds" -gt 0 ] && wdsflag="4addr on" + iw phy "$phy" interface add "$ifname" type managed $wdsflag + [ "$powersave" -gt 0 ] && powersave="on" || powersave="off" + iw "$ifname" set power_save "$powersave" + ;; + esac + + case "$mode" in + monitor|mesh) + [ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode + ;; + esac + + if [ "$mode" != "ap" ]; then + # ALL ap functionality will be passed to hostapd + # All interfaces must have unique mac addresses + # which can either be explicitly set in the device + # section, or automatically generated + ifconfig "$ifname" hw ether "$macaddr" + fi + + json_select .. +} + +mac80211_setup_supplicant() { + wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1 + wpa_supplicant_add_network "$ifname" + wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl} +} + +mac80211_setup_adhoc() { + json_get_vars bssid ssid basic_rate key + + keyspec= + [ "$auth_type" == "wep" ] && { + set_default key 1 + case "$key" in + [1234]) + local idx + for idx in 1 2 3 4; do + json_get_var ikey "key$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 + } + + brstr= + for br in $basic_rate; do + hostapd_add_rate brstr "$br" + done + + mcval= + [ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate" + + 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} +} + +mac80211_setup_vif() { + local name="$1" + + json_select data + json_get_vars ifname + json_select .. + + json_select config + json_get_vars mode + json_get_var vif_txpower txpower + + ifconfig "$ifname" up || { + wireless_setup_vif_failed IFUP_ERROR + json_select .. + return + } + + set_default vif_txpower "$txpower" + [ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00" + + case "$mode" in + mesh) + for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do + json_get_var mp_val "$var" + [ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val" + done + # todo: authsae + ;; + adhoc) + wireless_vif_parse_encryption + if [ "$wpa" -gt 0 ]; then + mac80211_setup_supplicant || failed=1 + else + mac80211_setup_adhoc + fi + ;; + sta) + mac80211_setup_supplicant || failed=1 + ;; + esac + + json_select .. + [ -n "$failed" ] || wireless_add_vif "$name" "$ifname" +} + +get_freq() { + local phy="$1" + local chan="$2" + iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}' +} + +mac80211_interface_cleanup() { + local phy="$1" + + for wdev in $(list_phy_interfaces "$phy"); do + ifconfig "$wdev" down 2>/dev/null + iw dev "$wdev" del + done +} + +drv_mac80211_cleanup() { + hostapd_common_cleanup +} + +drv_mac80211_setup() { + json_select config + json_get_vars \ + phy macaddr path \ + country chanbw distance \ + txpower antenna_gain \ + rxantenna txantenna \ + frag rts beacon_int + json_select .. + + find_phy || { + echo "Could not find PHY for device '$1'" + wireless_set_retry 0 + return 1 + } + + wireless_set_data phy="$phy" + mac80211_interface_cleanup "$phy" + + # convert channel to frequency + [ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")" + + [ -n "$country" ] && { + iw reg get | grep -q "^country $country:" || { + iw reg set "$country" + sleep 1 + } + } + + hostapd_conf_file="/var/run/hostapd-$phy.conf" + + no_ap=1 + macidx=0 + staidx=0 + + [ -n "$chanbw" ] && { + for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do + [ -f "$file" ] && echo "$chanbw" > "$file" + done + } + + set_default rxantenna all + set_default txantenna all + set_default distance 0 + set_default antenna_gain 0 + + iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1 + iw phy "$phy" set antenna_gain $antenna_gain + iw phy "$phy" set distance "$distance" + + [ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}" + [ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}" + + has_ap= + hostapd_ctrl= + for_each_interface "ap" mac80211_check_ap + + rm -f "$hostapd_conf_file" + [ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy" + + for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif + for_each_interface "ap" mac80211_prepare_vif + + [ -n "$hostapd_ctrl" ] && { + /usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file" + ret="$?" + wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1 + [ "$ret" != 0 ] && { + wireless_setup_failed HOSTAPD_START_FAILED + return + } + } + + for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif + + wireless_set_up +} + +list_phy_interfaces() { + local phy="$1" + if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then + ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null; + else + ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g' + fi +} + +drv_mac80211_teardown() { + wireless_process_kill_all + + json_select data + json_get_vars phy + json_select .. + + mac80211_interface_cleanup "$phy" +} + +add_driver mac80211 |