openwrtv3/package/kernel/mac80211/files/lib/netifd/wireless/mac80211.sh
John Crispin 3bc77db5f5 802.11s: fix authsae support in netifd
This patch implements support for 802.11s protected mesh wireless networks (using authsae) in the netifd framework.

Until meshd-nl80211 implements a proper -P option for the PID file, this uses shell backgrounding in order to be able to get the PID for the process.

Signed-off-by: Vittorio Gambaletta <openwrt@vittgam.net>

SVN-Revision: 40497
2014-04-12 21:22:17 +00:00

625 lines
16 KiB
Bash

#!/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:macaddr'
config_add_string hwmode
config_add_int beacon_int chanbw frag rts
config_add_int rxantenna txantenna antenna_gain txpower distance
config_add_boolean noscan
config_add_array ht_capab
config_add_boolean \
rxldpc \
short_gi_80 \
short_gi_160 \
tx_stbc_2by1 \
su_beamformer \
su_beamformee \
mu_beamformer \
mu_beamformee \
vht_txop_ps \
htc_vht \
rx_antenna_pattern \
tx_antenna_pattern
config_add_int vht_max_mpdu vht_max_rx_stbc vht_link_adapt vht160
}
drv_mac80211_init_iface_config() {
hostapd_common_add_bss_config
config_add_string 'macaddr:macaddr' ifname
config_add_boolean wds powersave
config_add_int maxassoc
config_add_int max_listen_int
config_add_int dtim_interval
# mesh
config_add_string mesh_id
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=
case "$htmode" in
HT20|HT40-|HT40+) ht_capab="[$htmode]";;
VHT40|VHT80|VHT160)
case "$channel" in
36|44|52|60|100|108|116|124|132|140|149|157) ht_capab="[HT40+]";;
40|48|56|64|104|112|120|128|136|144|153|161) ht_capab="[HT40-]";;
esac
;;
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"
# 802.11ac
enable_ac=0
idx="$channel"
case "$htmode" in
VHT40)
case "$channel" in
36|40) idx=38;;
44|48) idx=42;;
52|56) idx=54;;
60|64) idx=58;;
100|104) idx=102;;
108|112) idx=110;;
116|120) idx=118;;
124|128) idx=126;;
132|136) idx=134;;
140|144) idx=142;;
149|153) idx=151;;
157|161) idx=159;;
esac
enable_ac=1
append base_cfg "vht_oper_chwidth=0" "$N"
append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
;;
VHT80)
case "$channel" in
36|40|44|48) idx=42;;
52|56|60|64) idx=58;;
100|104|108|112) idx=106;;
116|120|124|128) idx=122;;
132|136|140|144) idx=138;;
149|153|157|161) idx=155;;
esac
enable_ac=1
append base_cfg "vht_oper_chwidth=1" "$N"
append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
;;
VHT160)
case "$channel" in
36|40|44|48|52|56|60|64) idx=50;;
100|104|108|112|116|120|124|128) idx=114;;
esac
enable_ac=1
append base_cfg "vht_oper_chwidth=2" "$N"
append base_cfg "vht_oper_centr_freq_seg0_idx=$idx" "$N"
;;
esac
if [ "$enable_ac" != "0" ]; then
json_get_vars \
rxldpc:1 \
short_gi_80:1 \
short_gi_160:1 \
tx_stbc_2by1:1 \
su_beamformer:1 \
su_beamformee:1 \
mu_beamformer:1 \
mu_beamformee:1 \
vht_txop_ps:1 \
htc_vht:1 \
rx_antenna_pattern:1 \
tx_antenna_pattern:1 \
vht_max_mpdu:11454 \
vht_max_rx_stbc:4 \
vht_link_adapt:3 \
vht160:2
append base_cfg "ieee80211ac=1" "$N"
vht_capab=""
vht_cap=0
for cap in $(iw phy "$phy" info | awk -F "[()]" '/VHT Capabilities/ { print $2 }'); do
vht_cap="$(($vht_cap | $cap))"
done
# boolean
[ "$((($vht_cap & 16) * $rxldpc))" -eq 16 ] && \
vht_capab="$vht_capab[RXLDPC]"
[ "$((($vht_cap & 32) * $short_gi_80))" -eq 32 ] && \
vht_capab="$vht_capab[SHORT-GI-80]"
[ "$((($vht_cap & 64) * $short_gi_160))" -eq 64 ] && \
vht_capab="$vht_capab[SHORT-GI-160]"
[ "$((($vht_cap & 128) * $tx_stbc_2by1))" -eq 128 ] && \
vht_capab="$vht_capab[TX-STBC-2BY1]"
[ "$((($vht_cap & 2048) * $su_beamformer))" -eq 2048 ] && \
vht_capab="$vht_capab[SU-BEAMFORMER]"
[ "$((($vht_cap & 4096) * $su_beamformee))" -eq 4096 ] && \
vht_capab="$vht_capab[SU-BEAMFORMEE]"
[ "$((($vht_cap & 524288) * $mu_beamformer))" -eq 524288 ] && \
vht_capab="$vht_capab[MU-BEAMFORMER]"
[ "$((($vht_cap & 1048576) * $mu_beamformee))" -eq 1048576 ] && \
vht_capab="$vht_capab[MU-BEAMFORMEE]"
[ "$((($vht_cap & 2097152) * $vht_txop_ps))" -eq 2097152 ] && \
vht_capab="$vht_capab[VHT-TXOP-PS]"
[ "$((($vht_cap & 4194304) * $htc_vht))" -eq 4194304 ] && \
vht_capab="$vht_capab[HTC-VHT]"
[ "$((($vht_cap & 268435456) * $rx_antenna_pattern))" -eq 268435456 ] && \
vht_capab="$vht_capab[RX-ANTENNA-PATTERN]"
[ "$((($vht_cap & 536870912) * $tx_antenna_pattern))" -eq 536870912 ] && \
vht_capab="$vht_capab[TX-ANTENNA-PATTERN]"
# supported Channel widths
vht160_hw=0
[ "$(($vht_cap & 12))" -eq 4 -a 1 -le "$vht160" ] && \
vht160_hw=1
[ "$(($vht_cap & 12))" -eq 8 -a 2 -le "$vht160" ] && \
vht160_hw=2
[ "$vht160_hw" = 1 ] && vht_capab="$vht_capab[VHT160]"
[ "$vht160_hw" = 2 ] && vht_capab="$vht_capab[VHT160-80PLUS80]"
# maximum MPDU length
vht_max_mpdu_hw=3895
[ "$(($vht_cap & 3))" -ge 1 -a 7991 -le "$vht_max_mpdu" ] && \
vht_max_mpdu_hw=7991
[ "$(($vht_cap & 3))" -ge 2 -a 11454 -le "$vht_max_mpdu" ] && \
vht_max_mpdu_hw=11454
[ "$vht_max_mpdu_hw" != 3895 ] && \
vht_capab="$vht_capab[MAX-MPDU-$vht_max_mpdu_hw]"
# support for the reception of PPDUs using STBC
vht_max_rx_stbc_hw=0
[ "$(($vht_cap & 1792))" -ge 256 -a 1 -le "$vht_max_rx_stbc" ] && \
vht_max_rx_stbc_hw=1
[ "$(($vht_cap & 1792))" -ge 512 -a 2 -le "$vht_max_rx_stbc" ] && \
vht_max_rx_stbc_hw=2
[ "$(($vht_cap & 1792))" -ge 768 -a 3 -le "$vht_max_rx_stbc" ] && \
vht_max_rx_stbc_hw=3
[ "$(($vht_cap & 1792))" -ge 1024 -a 4 -le "$vht_max_rx_stbc" ] && \
vht_max_rx_stbc_hw=4
[ "$vht_max_rx_stbc_hw" = 1 ] && vht_capab="$vht_capab[RX-STBC-1]"
[ "$vht_max_rx_stbc_hw" = 2 ] && vht_capab="$vht_capab[RX-STBC-12]"
[ "$vht_max_rx_stbc_hw" = 3 ] && vht_capab="$vht_capab[RX-STBC-123]"
[ "$vht_max_rx_stbc_hw" = 4 ] && vht_capab="$vht_capab[RX-STBC-1234]"
# whether or not the STA supports link adaptation using VHT variant
vht_link_adapt_hw=0
[ "$(($vht_cap & 201326592))" -ge 134217728 -a 2 -le "$vht_link_adapt" ] && \
vht_link_adapt_hw=2
[ "$(($vht_cap & 201326592))" -ge 201326592 -a 3 -le "$vht_link_adapt" ] && \
vht_link_adapt_hw=3
[ "$vht_link_adapt_hw" != 0 ] && \
vht_capab="$vht_capab[VHT-LINK-ADAPT-$vht_link_adapt_hw]"
[ -n "$vht_capab" ] && append base_cfg "vht_capab=$vht_capab" "$N"
fi
}
hostapd_prepare_device_config "$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 "$vif" || return 1
json_get_vars wds dtim_period max_listen_int
set_default wds 0
[ "$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 $hostapd_ctrl}
}
mac80211_setup_adhoc() {
json_get_vars bssid ssid key mcast_rate
keyspec=
[ "$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 $basic_rate_list; do
hostapd_add_rate brstr "$br"
done
mcval=
[ -n "$mcast_rate" ] && hostapd_add_rate mcval "$mcast_rate"
iw dev "$ifname" ibss join "$ssid" $freq $htmode fixed-freq $bssid \
${beacon_int:+beacon-interval $beacon_int} \
${brstr:+basic-rates $brstr} \
${mcval:+mcast-rate $mcval} \
${keyspec:+keys $keyspec}
}
mac80211_setup_vif() {
local name="$1"
local failed
json_select data
json_get_vars ifname
json_select ..
json_select config
json_get_vars mode
json_get_var vif_txpower txpower
ifconfig "$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
# authsae
json_get_vars key
if [ -n "$key" ]; then
if [ -e "/lib/wifi/authsae.sh" ]; then
. /lib/wifi/authsae.sh
authsae_start_interface || failed=1
else
wireless_setup_vif_failed AUTHSAE_NOT_INSTALLED
json_select ..
return
fi
fi
;;
adhoc)
wireless_vif_parse_encryption
if [ "$wpa" -gt 0 -o "$auto_channel" -gt 0 ]; then
mac80211_setup_supplicant || failed=1
else
mac80211_setup_adhoc
fi
;;
sta)
mac80211_setup_supplicant || failed=1
;;
esac
json_select ..
[ -n "$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_get_values basic_rate_list basic_rate
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