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https://github.com/openwrt/openwrt.git
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df10e201eb
If the first byte is available in the address mask, use only that one - set the local bit and xor it with the id << 2. This ensures that there are no hardware BSSID & BSSID-mask conflicts with devices that have almost the same MAC address with just a small offset. The MAC address conflict has been observed in a deployment with some devices from the same batch when running with multiple interfaces. If only some bits of the last byte are available, xor the id onto the last MAC address byte (relevant mostly for Ralink devices). In other cases (should not happen at this point), use the previous MAC address offset calculation but without the local bit. Signed-off-by: Felix Fietkau <nbd@openwrt.org> SVN-Revision: 36353
621 lines
16 KiB
Bash
621 lines
16 KiB
Bash
#!/bin/sh
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append DRIVERS "mac80211"
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mac80211_hostapd_setup_base() {
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local phy="$1"
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local ifname="$2"
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cfgfile="/var/run/hostapd-$phy.conf"
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config_get device "$vif" device
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config_get country "$device" country
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config_get hwmode "$device" hwmode
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config_get channel "$device" channel
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config_get beacon_int "$device" beacon_int
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config_get basic_rate_list "$device" basic_rate
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config_get_bool noscan "$device" noscan
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hostapd_set_log_options base_cfg "$device"
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[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
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[ "$channel" = auto ] && {
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channel=$(iw phy "$phy" info | \
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sed -ne '/MHz/ { /disabled\|passive\|radar/d; s/.*\[//; s/\].*//; p; q }')
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config_set "$device" channel "$channel"
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}
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[ -n "$hwmode" ] && {
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config_get hwmode_11n "$device" hwmode_11n
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[ -n "$hwmode_11n" ] && {
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hwmode="$hwmode_11n"
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append base_cfg "ieee80211n=1" "$N"
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config_get htmode "$device" htmode
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config_get ht_capab_list "$device" ht_capab
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case "$htmode" in
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HT20|HT40+|HT40-) ht_capab="[$htmode]";;
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*)ht_capab=;;
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esac
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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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}
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local country_ie=0
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[ -n "$country" ] && country_ie=1
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config_get_bool country_ie "$device" country_ie "$country_ie"
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[ "$country_ie" -gt 0 ] && append base_cfg "ieee80211d=1" "$N"
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local br brval brstr
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[ -n "$basic_rate_list" ] && {
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for br in $basic_rate_list; do
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brval="$(($br / 100))"
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[ -n "$brstr" ] && brstr="$brstr "
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brstr="$brstr$brval"
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done
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}
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cat >> "$cfgfile" <<EOF
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ctrl_interface=/var/run/hostapd-$phy
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driver=nl80211
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wmm_ac_bk_cwmin=4
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wmm_ac_bk_cwmax=10
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wmm_ac_bk_aifs=7
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wmm_ac_bk_txop_limit=0
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wmm_ac_bk_acm=0
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wmm_ac_be_aifs=3
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wmm_ac_be_cwmin=4
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wmm_ac_be_cwmax=10
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wmm_ac_be_txop_limit=0
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wmm_ac_be_acm=0
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wmm_ac_vi_aifs=2
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wmm_ac_vi_cwmin=3
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wmm_ac_vi_cwmax=4
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wmm_ac_vi_txop_limit=94
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wmm_ac_vi_acm=0
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wmm_ac_vo_aifs=2
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wmm_ac_vo_cwmin=2
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wmm_ac_vo_cwmax=3
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wmm_ac_vo_txop_limit=47
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wmm_ac_vo_acm=0
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tx_queue_data3_aifs=7
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tx_queue_data3_cwmin=15
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tx_queue_data3_cwmax=1023
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tx_queue_data3_burst=0
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tx_queue_data2_aifs=3
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tx_queue_data2_cwmin=15
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tx_queue_data2_cwmax=63
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tx_queue_data2_burst=0
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tx_queue_data1_aifs=1
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tx_queue_data1_cwmin=7
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tx_queue_data1_cwmax=15
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tx_queue_data1_burst=3.0
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tx_queue_data0_aifs=1
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tx_queue_data0_cwmin=3
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tx_queue_data0_cwmax=7
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tx_queue_data0_burst=1.5
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${hwmode:+hw_mode=$hwmode}
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${channel:+channel=$channel}
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${beacon_int:+beacon_int=$beacon_int}
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${country:+country_code=$country}
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${noscan:+noscan=$noscan}
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${brstr:+basic_rates=$brstr}
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$base_cfg
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EOF
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}
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mac80211_hostapd_setup_bss() {
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local phy="$1"
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local vif="$2"
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hostapd_cfg=
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cfgfile="/var/run/hostapd-$phy.conf"
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config_get ifname "$vif" ifname
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if [ -f "$cfgfile" ]; then
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append hostapd_cfg "bss=$ifname" "$N"
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else
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mac80211_hostapd_setup_base "$phy" "$ifname"
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append hostapd_cfg "interface=$ifname" "$N"
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fi
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local net_cfg bridge
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net_cfg="$(find_net_config "$vif")"
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[ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")"
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config_set "$vif" bridge "$bridge"
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hostapd_set_bss_options hostapd_cfg "$vif"
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config_get_bool wds "$vif" wds 0
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[ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
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local macaddr hidden maxassoc wmm
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config_get macaddr "$vif" macaddr
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config_get maxassoc "$vif" maxassoc
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config_get dtim_period "$vif" dtim_period
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config_get max_listen_int "$vif" max_listen_int
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config_get_bool hidden "$vif" hidden 0
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config_get_bool wmm "$vif" wmm 1
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cat >> /var/run/hostapd-$phy.conf <<EOF
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$hostapd_cfg
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wmm_enabled=$wmm
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bssid=$macaddr
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ignore_broadcast_ssid=$hidden
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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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${maxassoc:+max_num_sta=$maxassoc}
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EOF
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}
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mac80211_start_vif() {
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local vif="$1"
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local ifname="$2"
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local net_cfg
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net_cfg="$(find_net_config "$vif")"
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[ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg"
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set_wifi_up "$vif" "$ifname"
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}
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lookup_phy() {
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[ -n "$phy" ] && {
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[ -d /sys/class/ieee80211/$phy ] && return
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}
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local devpath
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config_get devpath "$device" path
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[ -n "$devpath" -a -d "/sys/devices/$devpath/ieee80211" ] && {
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phy="$(ls /sys/devices/$devpath/ieee80211 | grep -m 1 phy)"
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[ -n "$phy" ] && return
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}
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local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
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[ -n "$macaddr" ] && {
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for _phy in $(ls /sys/class/ieee80211 2>/dev/null); do
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[ "$macaddr" = "$(cat /sys/class/ieee80211/${_phy}/macaddress)" ] || continue
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phy="$_phy"
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return
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done
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}
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phy=
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return
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}
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find_mac80211_phy() {
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local device="$1"
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config_get phy "$device" phy
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lookup_phy
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[ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
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echo "PHY for wifi device $1 not found"
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return 1
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}
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config_set "$device" phy "$phy"
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config_get macaddr "$device" macaddr
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[ -z "$macaddr" ] && {
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config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
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}
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return 0
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}
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scan_mac80211() {
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local device="$1"
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local adhoc sta ap monitor mesh disabled
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config_get vifs "$device" vifs
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for vif in $vifs; do
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config_get_bool disabled "$vif" disabled 0
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[ $disabled = 0 ] || continue
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config_get mode "$vif" mode
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case "$mode" in
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adhoc|sta|ap|monitor|mesh)
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append $mode "$vif"
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;;
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*) echo "$device($vif): Invalid mode, ignored."; continue;;
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esac
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done
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config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
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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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disable_mac80211() (
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local device="$1"
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find_mac80211_phy "$device" || return 0
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config_get phy "$device" phy
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set_wifi_down "$device"
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# kill all running hostapd and wpa_supplicant processes that
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# are running on atheros/mac80211 vifs
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for pid in `pidof hostapd`; do
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grep -E "$phy" /proc/$pid/cmdline >/dev/null && \
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kill $pid
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done
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include /lib/network
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for wdev in $(list_phy_interfaces "$phy"); do
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[ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1
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for pid in `pidof wpa_supplicant`; do
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grep "$wdev" /proc/$pid/cmdline >/dev/null && \
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kill $pid
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done
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ifconfig "$wdev" down 2>/dev/null
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unbridge "$dev"
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iw dev "$wdev" del
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done
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return 0
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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_generate_mac() {
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local id="$1"
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local ref="$2"
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local mask="$3"
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[ "$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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[ "$((0x$mask1))" -gt 0 ] && {
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b1=$(((0x$1 | 0x2) ^ ($id << 2)))
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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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enable_mac80211() {
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local device="$1"
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config_get channel "$device" channel
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config_get vifs "$device" vifs
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config_get txpower "$device" txpower
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config_get country "$device" country
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config_get distance "$device" distance
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config_get txantenna "$device" txantenna all
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config_get rxantenna "$device" rxantenna all
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config_get antenna_gain "$device" antenna_gain 0
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config_get frag "$device" frag
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config_get rts "$device" rts
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find_mac80211_phy "$device" || return 0
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config_get phy "$device" phy
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local i=0
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local macidx=0
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local apidx=0
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fixed=""
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local hostapd_ctrl=""
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[ -n "$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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config_get chanbw "$device" chanbw
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[ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath9k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw
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[ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath5k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode
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[ "$channel" = "auto" -o "$channel" = "0" ] || {
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fixed=1
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}
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iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
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iw phy "$phy" set antenna_gain $antenna_gain
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[ -n "$distance" ] && 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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export channel fixed
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# convert channel to frequency
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local freq="$(get_freq "$phy" "${fixed:+$channel}")"
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wifi_fixup_hwmode "$device" "g"
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for vif in $vifs; do
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config_get ifname "$vif" ifname
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[ -n "$ifname" ] || {
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[ $i -gt 0 ] && ifname="wlan${phy#phy}-$i" || ifname="wlan${phy#phy}"
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}
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config_set "$vif" ifname "$ifname"
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config_get mode "$vif" mode
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config_get ssid "$vif" ssid
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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 "$ifname" type adhoc
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;;
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ap)
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# Hostapd will handle recreating the interface and
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# it's accompanying monitor
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apidx="$(($apidx + 1))"
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[ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
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;;
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mesh)
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config_get mesh_id "$vif" mesh_id
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iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
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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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config_get_bool wds "$vif" wds 0
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[ "$wds" -gt 0 ] && wdsflag="4addr on"
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iw phy "$phy" interface add "$ifname" type managed $wdsflag
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config_get_bool powersave "$vif" powersave 0
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[ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
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iw "$ifname" set power_save "$powersave"
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;;
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esac
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# All interfaces must have unique mac addresses
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# which can either be explicitly set in the device
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# section, or automatically generated
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config_get macaddr "$device" macaddr
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config_get vif_mac "$vif" macaddr
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[ -n "$vif_mac" ] || {
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vif_mac="$(mac80211_generate_mac $macidx $macaddr $(cat /sys/class/ieee80211/${phy}/address_mask))"
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macidx="$(($macidx + 1))"
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}
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[ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
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config_set "$vif" macaddr "$vif_mac"
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# !! ap !!
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#
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# ALL ap functionality will be passed to hostapd
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#
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# !! station !!
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#
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# ALL station functionality will be passed to wpa_supplicant
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#
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if [ ! "$mode" = "ap" ]; then
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# We attempt to set the channel for all interfaces, although
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# mac80211 may not support it or the driver might not yet
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# for ap mode this is handled by hostapd
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[ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
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fi
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i=$(($i + 1))
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done
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local start_hostapd=
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rm -f /var/run/hostapd-$phy.conf
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for vif in $vifs; do
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config_get mode "$vif" mode
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[ "$mode" = "ap" ] || continue
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mac80211_hostapd_setup_bss "$phy" "$vif"
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start_hostapd=1
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done
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[ -n "$start_hostapd" ] && {
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hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || {
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echo "Failed to start hostapd for $phy"
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return
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}
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sleep 2
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for vif in $vifs; do
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config_get mode "$vif" mode
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config_get ifname "$vif" ifname
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[ "$mode" = "ap" ] || continue
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hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd-$phy/$ifname}"
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mac80211_start_vif "$vif" "$ifname"
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done
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}
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for vif in $vifs; do
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config_get mode "$vif" mode
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config_get ifname "$vif" ifname
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[ "$mode" = "ap" ] || ifconfig "$ifname" up
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config_get vif_txpower "$vif" txpower
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# use vif_txpower (from wifi-iface) to override txpower (from
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# wifi-device) if the latter doesn't exist
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txpower="${txpower:-$vif_txpower}"
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[ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
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case "$mode" in
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adhoc)
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config_get bssid "$vif" bssid
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config_get ssid "$vif" ssid
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config_get beacon_int "$device" beacon_int
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config_get basic_rate_list "$device" basic_rate
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config_get encryption "$vif" encryption
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config_get key "$vif" key 1
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config_get mcast_rate "$vif" mcast_rate
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config_get htmode "$device" htmode
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case "$htmode" in
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HT20|HT40+|HT40-) ;;
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*) htmode= ;;
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esac
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local keyspec=""
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[ "$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}" $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
|
|
}
|
|
mac80211_start_vif "$vif" "$ifname"
|
|
continue
|
|
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_mac80211_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 $(ls /sys/class/ieee80211); do
|
|
found=0
|
|
config_foreach check_mac80211_device wifi-device
|
|
[ "$found" -gt 0 ] && continue
|
|
|
|
mode_11n=""
|
|
mode_band="g"
|
|
channel="11"
|
|
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" "$N"
|
|
[ "$(($ht_cap & 16))" -eq 16 ] && append ht_capab "$list GF" "$N"
|
|
[ "$(($ht_cap & 32))" -eq 32 ] && append ht_capab "$list SHORT-GI-20" "$N"
|
|
[ "$(($ht_cap & 64))" -eq 64 ] && append ht_capab "$list SHORT-GI-40" "$N"
|
|
[ "$(($ht_cap & 128))" -eq 128 ] && append ht_capab "$list TX-STBC" "$N"
|
|
[ "$(($ht_cap & 768))" -eq 256 ] && append ht_capab "$list RX-STBC1" "$N"
|
|
[ "$(($ht_cap & 768))" -eq 512 ] && append ht_capab "$list RX-STBC12" "$N"
|
|
[ "$(($ht_cap & 768))" -eq 768 ] && append ht_capab "$list RX-STBC123" "$N"
|
|
[ "$(($ht_cap & 4096))" -eq 4096 ] && append ht_capab "$list DSSS_CCK-40" "$N"
|
|
}
|
|
iw phy "$dev" info | grep -q '2412 MHz' || { mode_band="a"; channel="36"; }
|
|
|
|
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 ${channel}
|
|
option hwmode 11${mode_11n}${mode_band}
|
|
$dev_id
|
|
$ht_capab
|
|
# REMOVE THIS LINE TO ENABLE WIFI:
|
|
option disabled 1
|
|
|
|
config wifi-iface
|
|
option device radio$devidx
|
|
option network lan
|
|
option mode ap
|
|
option ssid OpenWrt
|
|
option encryption none
|
|
|
|
EOF
|
|
devidx=$(($devidx + 1))
|
|
done
|
|
}
|
|
|