445 lines
10 KiB
Bash
445 lines
10 KiB
Bash
#!/bin/sh
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. /lib/netifd/netifd-wireless.sh
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. /lib/netifd/hostapd.sh
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init_wireless_driver "$@"
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MP_CONFIG_INT="mesh_retry_timeout mesh_confirm_timeout mesh_holding_timeout mesh_max_peer_links
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mesh_max_retries mesh_ttl mesh_element_ttl mesh_hwmp_max_preq_retries
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mesh_path_refresh_time mesh_min_discovery_timeout mesh_hwmp_active_path_timeout
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mesh_hwmp_preq_min_interval mesh_hwmp_net_diameter_traversal_time mesh_hwmp_rootmode
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mesh_hwmp_rann_interval mesh_gate_announcements mesh_sync_offset_max_neighor
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mesh_rssi_threshold mesh_hwmp_active_path_to_root_timeout mesh_hwmp_root_interval
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mesh_hwmp_confirmation_interval mesh_awake_window mesh_plink_timeout"
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MP_CONFIG_BOOL="mesh_auto_open_plinks mesh_fwding"
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MP_CONFIG_STRING="mesh_power_mode"
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drv_mac80211_init_device_config() {
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hostapd_common_add_device_config
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config_add_string path phy macaddr
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config_add_string hwmode
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config_add_int beacon_int chanbw frag rts
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config_add_int rxantenna txantenna antenna_gain txpower distance
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config_add_boolean noscan
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config_add_array ht_capab
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}
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drv_mac80211_init_iface_config() {
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hostapd_common_add_bss_config
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config_add_string macaddr ifname
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config_add_boolean wds powersave
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config_add_int maxassoc
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config_add_int max_listen_int
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config_add_int dtim_interval
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# mesh
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config_add_int $MP_CONFIG_INT
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config_add_boolean $MP_CONFIG_BOOL
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config_add_string $MP_CONFIG_STRING
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}
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mac80211_hostapd_setup_base() {
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local phy="$1"
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json_select config
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[ "$auto_channel" -gt 0 ] && channel=acs_survey
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[ "$enable_ht" -gt 0 ] && {
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json_get_vars noscan htmode
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json_get_values ht_capab_list ht_capab
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append base_cfg "ieee80211n=1" "$N"
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ht_capab=
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[ -n "$htmode" ] && ht_capab="[$htmode]"
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for cap in $ht_capab_list; do
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ht_capab="$ht_capab[$cap]"
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done
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[ -n "$ht_capab" ] && append base_cfg "ht_capab=$ht_capab" "$N"
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}
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hostapd_prepare_device_config "$hostapd_conf_file" nl80211
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cat >> "$hostapd_conf_file" <<EOF
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${channel:+channel=$channel}
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${noscan:+noscan=$noscan}
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$base_cfg
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EOF
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json_select ..
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}
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mac80211_hostapd_setup_bss() {
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local phy="$1"
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local ifname="$2"
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local macaddr="$3"
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local type="$4"
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hostapd_cfg=
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append hostapd_cfg "$type=$ifname" "$N"
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hostapd_set_bss_options hostapd_cfg "$vif" || return 1
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json_get_vars wds dtim_period max_listen_int
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set_default wds 0
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[ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
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[ "$staidx" -gt 0 ] && append hostapd_cfg "start_disabled=1" "$N"
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cat >> /var/run/hostapd-$phy.conf <<EOF
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$hostapd_cfg
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bssid=$macaddr
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${dtim_period:+dtim_period=$dtim_period}
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${max_listen_int:+max_listen_interval=$max_listen_int}
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EOF
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}
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mac80211_generate_mac() {
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local phy="$1"
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local id="${macidx:-0}"
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local ref="$(cat /sys/class/ieee80211/${phy}/macaddress)"
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local mask="$(cat /sys/class/ieee80211/${phy}/address_mask)"
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[ "$mask" = "00:00:00:00:00:00" ] && mask="ff:ff:ff:ff:ff:ff";
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local oIFS="$IFS"; IFS=":"; set -- $mask; IFS="$oIFS"
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local mask1=$1
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local mask6=$6
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local oIFS="$IFS"; IFS=":"; set -- $ref; IFS="$oIFS"
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macidx=$(($id + 1))
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[ "$((0x$mask1))" -gt 0 ] && {
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b1="0x$1"
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[ "$id" -gt 0 ] && \
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b1=$(($b1 ^ ((($id - 1) << 2) | 0x2)))
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printf "%02x:%s:%s:%s:%s:%s" $b1 $2 $3 $4 $5 $6
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return
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}
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[ "$((0x$mask6))" -lt 255 ] && {
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printf "%s:%s:%s:%s:%s:%02x" $1 $2 $3 $4 $5 $(( 0x$6 ^ $id ))
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return
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}
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off2=$(( (0x$6 + $id) / 0x100 ))
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printf "%s:%s:%s:%s:%02x:%02x" \
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$1 $2 $3 $4 \
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$(( (0x$5 + $off2) % 0x100 )) \
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$(( (0x$6 + $id) % 0x100 ))
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}
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find_phy() {
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[ -n "$phy" -a -d /sys/class/ieee80211/$phy ] && return 0
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[ -n "$path" -a -d "/sys/devices/$path/ieee80211" ] && {
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phy="$(ls /sys/devices/$path/ieee80211 | grep -m 1 phy)"
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[ -n "$phy" ] && return 0
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}
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[ -n "$macaddr" ] && {
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for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
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grep -i -q "$macaddr" "/sys/class/ieee80211/${phy}/macaddress" && return 0
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done
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}
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return 1
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}
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mac80211_check_ap() {
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has_ap=1
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}
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mac80211_prepare_vif() {
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json_select config
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json_get_vars ifname mode ssid wds powersave macaddr
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[ -n "$ifname" ] || ifname="wlan${phy#phy}${if_idx:+-$if_idx}"
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if_idx=$((${if_idx:-0} + 1))
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set_default wds 0
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set_default powersave 0
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json_select ..
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[ -n "$macaddr" ] || {
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macaddr="$(mac80211_generate_mac $phy)"
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macidx="$(($macidx + 1))"
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}
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json_add_object data
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json_add_string ifname "$ifname"
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json_close_object
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json_select config
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# It is far easier to delete and create the desired interface
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case "$mode" in
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adhoc)
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iw phy "$phy" interface add "$ifname" type adhoc
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;;
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ap)
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# Hostapd will handle recreating the interface and
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# subsequent virtual APs belonging to the same PHY
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if [ -n "$hostapd_ctrl" ]; then
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type=bss
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else
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type=interface
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fi
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mac80211_hostapd_setup_bss "$phy" "$ifname" "$macaddr" "$type" || return
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[ -n "$hostapd_ctrl" ] || {
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iw phy "$phy" interface add "$ifname" type managed
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hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd/$ifname}"
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}
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;;
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mesh)
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json_get_vars key mesh_id
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if [ -n "$key" ]; then
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iw phy "$phy" interface add "$ifname" type mp
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else
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iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
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fi
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;;
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monitor)
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iw phy "$phy" interface add "$ifname" type monitor
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;;
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sta)
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local wdsflag=
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staidx="$(($staidx + 1))"
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[ "$wds" -gt 0 ] && wdsflag="4addr on"
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iw phy "$phy" interface add "$ifname" type managed $wdsflag
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[ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
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iw "$ifname" set power_save "$powersave"
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;;
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esac
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case "$mode" in
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monitor|mesh)
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[ "$auto_channel" -gt 0 ] || iw dev "$ifname" set channel "$channel" $htmode
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;;
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esac
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if [ "$mode" != "ap" ]; then
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# ALL ap functionality will be passed to hostapd
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# All interfaces must have unique mac addresses
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# which can either be explicitly set in the device
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# section, or automatically generated
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ifconfig "$ifname" hw ether "$macaddr"
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fi
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json_select ..
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}
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mac80211_setup_supplicant() {
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wpa_supplicant_prepare_interface "$ifname" nl80211 || return 1
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wpa_supplicant_add_network "$ifname"
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wpa_supplicant_run "$ifname" ${hostapd_ctrl:+-H $hostapd_ctrl}
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}
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mac80211_setup_adhoc() {
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json_get_vars bssid ssid key mcast_rate
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keyspec=
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[ "$auth_type" == "wep" ] && {
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set_default key 1
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case "$key" in
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[1234])
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local idx
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for idx in 1 2 3 4; do
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json_get_var ikey "key$idx"
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[ -n "$ikey" ] && {
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ikey="$(($idx - 1)):$(prepare_key_wep "$ikey")"
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[ $idx -eq $key ] && ikey="d:$ikey"
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append keyspec "$ikey"
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}
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done
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;;
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*)
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append keyspec "d:0:$(prepare_key_wep "$key")"
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;;
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esac
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}
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brstr=
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for br in $basic_rate_list; do
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hostapd_add_rate brstr "$br"
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done
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mcval=
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[ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
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iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
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${beacon_int:+beacon-interval $beacon_int} \
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${brstr:+basic-rates $brstr} \
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${mcval:+mcast-rate $mcval} \
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${keyspec:+keys $keyspec}
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}
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mac80211_setup_vif() {
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local name="$1"
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json_select data
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json_get_vars ifname
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json_select ..
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json_select config
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json_get_vars mode
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json_get_var vif_txpower txpower
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ifconfig "$ifname" up || {
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wireless_setup_vif_failed IFUP_ERROR
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json_select ..
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return
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}
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set_default vif_txpower "$txpower"
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[ -z "$vif_txpower" ] || iw dev "$ifname" set txpower fixed "${vif_txpower%%.*}00"
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case "$mode" in
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mesh)
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for var in $MP_CONFIG_INT $MP_CONFIG_BOOL $MP_CONFIG_STRING; do
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json_get_var mp_val "$var"
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[ -n "$mp_val" ] && iw dev "$ifname" set mesh_param "$var" "$mp_val"
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done
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# todo: authsae
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;;
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adhoc)
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wireless_vif_parse_encryption
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if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
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mac80211_setup_supplicant || failed=1
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else
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mac80211_setup_adhoc
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fi
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;;
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sta)
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mac80211_setup_supplicant || failed=1
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;;
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esac
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json_select ..
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[ -n "$failed" ] || wireless_add_vif "$name" "$ifname"
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}
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get_freq() {
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local phy="$1"
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local chan="$2"
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iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
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}
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mac80211_interface_cleanup() {
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local phy="$1"
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for wdev in $(list_phy_interfaces "$phy"); do
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ifconfig "$wdev" down 2>/dev/null
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iw dev "$wdev" del
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done
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}
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drv_mac80211_cleanup() {
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hostapd_common_cleanup
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}
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drv_mac80211_setup() {
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json_select config
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json_get_vars \
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phy macaddr path \
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country chanbw distance \
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txpower antenna_gain \
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rxantenna txantenna \
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frag rts beacon_int
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json_get_values basic_rate_list basic_rate
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json_select ..
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find_phy || {
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echo "Could not find PHY for device '$1'"
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wireless_set_retry 0
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return 1
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}
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wireless_set_data phy="$phy"
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mac80211_interface_cleanup "$phy"
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# convert channel to frequency
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[ "$auto_channel" -gt 0 ] || freq="$(get_freq "$phy" "$channel")"
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[ -n "$country" ] && {
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iw reg get | grep -q "^country $country:" || {
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iw reg set "$country"
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sleep 1
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}
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}
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hostapd_conf_file="/var/run/hostapd-$phy.conf"
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no_ap=1
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macidx=0
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staidx=0
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[ -n "$chanbw" ] && {
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for file in /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode; do
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[ -f "$file" ] && echo "$chanbw" > "$file"
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done
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}
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set_default rxantenna all
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set_default txantenna all
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set_default distance 0
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set_default antenna_gain 0
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iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
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iw phy "$phy" set antenna_gain $antenna_gain
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iw phy "$phy" set distance "$distance"
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[ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
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[ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
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has_ap=
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hostapd_ctrl=
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for_each_interface "ap" mac80211_check_ap
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rm -f "$hostapd_conf_file"
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[ -n "$has_ap" ] && mac80211_hostapd_setup_base "$phy"
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for_each_interface "sta adhoc mesh monitor" mac80211_prepare_vif
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for_each_interface "ap" mac80211_prepare_vif
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[ -n "$hostapd_ctrl" ] && {
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/usr/sbin/hostapd -P /var/run/wifi-$phy.pid -B "$hostapd_conf_file"
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ret="$?"
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wireless_add_process "$(cat /var/run/wifi-$phy.pid)" "/usr/sbin/hostapd" 1
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[ "$ret" != 0 ] && {
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wireless_setup_failed HOSTAPD_START_FAILED
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return
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}
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}
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for_each_interface "ap sta adhoc mesh monitor" mac80211_setup_vif
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wireless_set_up
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}
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list_phy_interfaces() {
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local phy="$1"
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if [ -d "/sys/class/ieee80211/${phy}/device/net" ]; then
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ls "/sys/class/ieee80211/${phy}/device/net" 2>/dev/null;
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else
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ls "/sys/class/ieee80211/${phy}/device" 2>/dev/null | grep net: | sed -e 's,net:,,g'
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fi
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}
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drv_mac80211_teardown() {
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wireless_process_kill_all
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json_select data
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json_get_vars phy
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json_select ..
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mac80211_interface_cleanup "$phy"
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}
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add_driver mac80211
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