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openwrt/package/network/services/hostapd/files/hostapd.sh
John Crispin 3bc4516ebb hostapd: Add optional support for hostapd own_ip_addr in wireless config 
`own_ip_addr` is used by hostapd as NAS-IP-Address.
This is used to identify the AP that is requesting the authentication of the
user and could be used to define which AP's can authenticate users.
Some vendors implement only NAS-Identifier or NAS-IP-Address and not both.
This patch adds ownip as an optional parameter in /etc/config/wireless.

Signed-off-by: Thomas Wouters <thomaswouters@gmail.com>

SVN-Revision: 40934
2014-06-02 12:44:40 +00:00

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hostapd_set_bss_options() {
local var="$1"
local vif="$2"
local enc wep_rekey wpa_group_rekey wpa_pair_rekey wpa_master_rekey wps_possible
config_get enc "$vif" encryption "none"
config_get wep_rekey "$vif" wep_rekey # 300
config_get wpa_group_rekey "$vif" wpa_group_rekey # 300
config_get wpa_pair_rekey "$vif" wpa_pair_rekey # 300
config_get wpa_master_rekey "$vif" wpa_master_rekey # 640
config_get_bool ap_isolate "$vif" isolate 0
config_get_bool disassoc_low_ack "$vif" disassoc_low_ack 1
config_get max_num_sta "$vif" max_num_sta 0
config_get max_inactivity "$vif" max_inactivity 0
config_get_bool preamble "$vif" short_preamble 1
config_get device "$vif" device
config_get hwmode "$device" hwmode
config_get phy "$device" phy
append "$var" "ctrl_interface=/var/run/hostapd-$phy" "$N"
if [ "$ap_isolate" -gt 0 ]; then
append "$var" "ap_isolate=$ap_isolate" "$N"
fi
if [ "$max_num_sta" -gt 0 ]; then
append "$var" "max_num_sta=$max_num_sta" "$N"
fi
if [ "$max_inactivity" -gt 0 ]; then
append "$var" "ap_max_inactivity=$max_inactivity" "$N"
fi
append "$var" "disassoc_low_ack=$disassoc_low_ack" "$N"
if [ "$preamble" -gt 0 ]; then
append "$var" "preamble=$preamble" "$N"
fi
# Examples:
# psk-mixed/tkip => WPA1+2 PSK, TKIP
# wpa-psk2/tkip+aes => WPA2 PSK, CCMP+TKIP
# wpa2/tkip+aes => WPA2 RADIUS, CCMP+TKIP
# ...
# TODO: move this parsing function somewhere generic, so that
# later it can be reused by drivers that don't use hostapd
# crypto defaults: WPA2 vs WPA1
case "$enc" in
wpa2*|*psk2*)
wpa=2
crypto="CCMP"
;;
*mixed*)
wpa=3
crypto="CCMP TKIP"
;;
*)
wpa=1
crypto="TKIP"
;;
esac
# explicit override for crypto setting
case "$enc" in
*tkip+aes|*tkip+ccmp|*aes+tkip|*ccmp+tkip) crypto="CCMP TKIP";;
*aes|*ccmp) crypto="CCMP";;
*tkip) crypto="TKIP";;
esac
# enforce CCMP for 11ng and 11na
case "$hwmode:$crypto" in
*ng:TKIP|*na:TKIP) crypto="CCMP TKIP";;
esac
# use crypto/auth settings for building the hostapd config
case "$enc" in
none)
wps_possible=1
wpa=0
crypto=
# Here we make the assumption that if we're in open mode
# with WPS enabled, we got to be in unconfigured state.
wps_not_configured=1
;;
*psk*)
config_get psk "$vif" key
if [ ${#psk} -eq 64 ]; then
append "$var" "wpa_psk=$psk" "$N"
else
append "$var" "wpa_passphrase=$psk" "$N"
fi
wps_possible=1
[ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
[ -n "$wpa_pair_rekey" ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey" "$N"
[ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey" "$N"
;;
*wpa*|*8021x*)
# required fields? formats?
# hostapd is particular, maybe a default configuration for failures
config_get auth_server "$vif" auth_server
[ -z "$auth_server" ] && config_get auth_server "$vif" server
append "$var" "auth_server_addr=$auth_server" "$N"
config_get auth_port "$vif" auth_port
[ -z "$auth_port" ] && config_get auth_port "$vif" port
auth_port=${auth_port:-1812}
append "$var" "auth_server_port=$auth_port" "$N"
config_get auth_secret "$vif" auth_secret
[ -z "$auth_secret" ] && config_get auth_secret "$vif" key
append "$var" "auth_server_shared_secret=$auth_secret" "$N"
# You don't really want to enable this unless you are doing
# some corner case testing or are using OpenWrt as a work around
# for some systematic issues.
config_get_bool auth_cache "$vif" auth_cache 0
config_get rsn_preauth "$vif" rsn_preauth
[ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "disable_pmksa_caching=1" "$N"
[ "$auth_cache" -gt 0 ] || [[ "$rsn_preauth" = 1 ]] || append "$var" "okc=0" "$N"
config_get acct_server "$vif" acct_server
[ -n "$acct_server" ] && append "$var" "acct_server_addr=$acct_server" "$N"
config_get acct_port "$vif" acct_port
[ -n "$acct_port" ] && acct_port=${acct_port:-1813}
[ -n "$acct_port" ] && append "$var" "acct_server_port=$acct_port" "$N"
config_get acct_secret "$vif" acct_secret
[ -n "$acct_secret" ] && append "$var" "acct_server_shared_secret=$acct_secret" "$N"
config_get eap_reauth_period "$vif" eap_reauth_period
[ -n "$eap_reauth_period" ] && append "$var" "eap_reauth_period=$eap_reauth_period" "$N"
config_get dae_client "$vif" dae_client
config_get dae_secret "$vif" dae_secret
[ -n "$dae_client" -a -n "$dae_secret" ] && {
config_get dae_port "$vif" dae_port
append "$var" "radius_das_port=${dae_port:-3799}" "$N"
append "$var" "radius_das_client=$dae_client $dae_secret" "$N"
}
config_get nasid "$vif" nasid
config_get ownip "$vif" ownip
append "$var" "nas_identifier=$nasid" "$N"
append "$var" "own_ip_addr=$ownip" "$N"
append "$var" "eapol_key_index_workaround=1" "$N"
append "$var" "ieee8021x=1" "$N"
append "$var" "wpa_key_mgmt=WPA-EAP" "$N"
[ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
[ -n "$wpa_pair_rekey" ] && append "$var" "wpa_ptk_rekey=$wpa_pair_rekey" "$N"
[ -n "$wpa_master_rekey" ] && append "$var" "wpa_gmk_rekey=$wpa_master_rekey" "$N"
;;
*wep*)
config_get key "$vif" key
key="${key:-1}"
case "$key" in
[1234])
for idx in 1 2 3 4; do
local zidx
zidx=$(($idx - 1))
config_get ckey "$vif" "key${idx}"
[ -n "$ckey" ] && \
append "$var" "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N"
done
append "$var" "wep_default_key=$((key - 1))" "$N"
;;
*)
append "$var" "wep_key0=$(prepare_key_wep "$key")" "$N"
append "$var" "wep_default_key=0" "$N"
[ -n "$wep_rekey" ] && append "$var" "wep_rekey_period=$wep_rekey" "$N"
;;
esac
case "$enc" in
*shared*)
auth_algs=2
;;
*mixed*)
auth_algs=3
;;
esac
wpa=0
crypto=
;;
*)
wpa=0
crypto=
;;
esac
append "$var" "auth_algs=${auth_algs:-1}" "$N"
append "$var" "wpa=$wpa" "$N"
[ -n "$crypto" ] && append "$var" "wpa_pairwise=$crypto" "$N"
[ -n "$wpa_group_rekey" ] && append "$var" "wpa_group_rekey=$wpa_group_rekey" "$N"
config_get ssid "$vif" ssid
config_get bridge "$vif" bridge
config_get ieee80211d "$vif" ieee80211d
config_get iapp_interface "$vif" iapp_interface
config_get_bool wps_pbc "$vif" wps_pushbutton 0
config_get_bool wps_label "$vif" wps_label 0
config_get config_methods "$vif" wps_config
[ "$wps_pbc" -gt 0 ] && append config_methods push_button
[ -n "$wps_possible" -a -n "$config_methods" ] && {
config_get device_type "$vif" wps_device_type "6-0050F204-1"
config_get device_name "$vif" wps_device_name "OpenWrt AP"
config_get manufacturer "$vif" wps_manufacturer "openwrt.org"
config_get wps_pin "$vif" wps_pin "12345670"
config_get_bool ext_registrar "$vif" ext_registrar 0
[ "$ext_registrar" -gt 0 -a -n "$bridge" ] && append "$var" "upnp_iface=$bridge" "$N"
append "$var" "eap_server=1" "$N"
append "$var" "ap_pin=$wps_pin" "$N"
append "$var" "wps_state=${wps_not_configured:-2}" "$N"
append "$var" "ap_setup_locked=0" "$N"
append "$var" "device_type=$device_type" "$N"
append "$var" "device_name=$device_name" "$N"
append "$var" "manufacturer=$manufacturer" "$N"
append "$var" "config_methods=$config_methods" "$N"
}
append "$var" "ssid=$ssid" "$N"
[ -n "$bridge" ] && append "$var" "bridge=$bridge" "$N"
[ -n "$ieee80211d" ] && append "$var" "ieee80211d=$ieee80211d" "$N"
[ -n "$iapp_interface" ] && append "$var" iapp_interface=$(uci_get_state network "$iapp_interface" ifname "$iapp_interface") "$N"
if [ "$wpa" -ge "2" ]
then
# RSN -> allow preauthentication. You have two
# options, rsn_preauth for production or rsn_preauth_testing
# for validation / testing.
if [ -n "$bridge" -a "$rsn_preauth" = 1 ]
then
append "$var" "rsn_preauth=1" "$N"
append "$var" "rsn_preauth_interfaces=$bridge" "$N"
append "$var" "okc=1" "$N"
else
# RSN preauthentication testings hould disable
# Opportunistic Key Caching (okc) as otherwise the PMKSA
# entry for a test could come from the Opportunistic Key Caching
config_get rsn_preauth_testing "$vif" rsn_preauth_testing
if [ -n "$bridge" -a "$rsn_preauth_testing" = 1 ]
then
append "$var" "rsn_preauth=1" "$N"
append "$var" "rsn_preauth_interfaces=$bridge" "$N"
append "$var" "okc=0" "$N"
fi
fi
# RSN -> allow management frame protection
config_get ieee80211w "$vif" ieee80211w
case "$ieee80211w" in
[012])
append "$var" "ieee80211w=$ieee80211w" "$N"
[ "$ieee80211w" -gt "0" ] && {
config_get ieee80211w_max_timeout "$vif" ieee80211w_max_timeout
config_get ieee80211w_retry_timeout "$vif" ieee80211w_retry_timeout
[ -n "$ieee80211w_max_timeout" ] && \
append "$var" "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
[ -n "$ieee80211w_retry_timeout" ] && \
append "$var" "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
}
;;
esac
fi
config_get macfile "$vif" macfile
config_get maclist "$vif" maclist
if [ -z "$macfile" ]
then
# if no macfile has been specified, fallback to the default name
# and truncate file to avoid aggregating entries over time
macfile="/var/run/hostapd-$ifname.maclist"
echo "" > "$macfile"
else
if [ -n "$maclist" ]
then
# to avoid to overwrite the original file, make a copy
# before appending the entries specified by the maclist
# option
cp $macfile $macfile.maclist
macfile=$macfile.maclist
fi
fi
if [ -n "$maclist" ]
then
for mac in $maclist; do
echo "$mac" >> $macfile
done
fi
config_get macfilter "$vif" macfilter
case "$macfilter" in
allow)
append "$var" "macaddr_acl=1" "$N"
append "$var" "accept_mac_file=$macfile" "$N"
;;
deny)
append "$var" "macaddr_acl=0" "$N"
append "$var" "deny_mac_file=$macfile" "$N"
;;
esac
}
hostapd_set_log_options() {
local var="$1"
local cfg="$2"
local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
config_get log_level "$cfg" log_level 2
config_get_bool log_80211 "$cfg" log_80211 1
config_get_bool log_8021x "$cfg" log_8021x 1
config_get_bool log_radius "$cfg" log_radius 1
config_get_bool log_wpa "$cfg" log_wpa 1
config_get_bool log_driver "$cfg" log_driver 1
config_get_bool log_iapp "$cfg" log_iapp 1
config_get_bool log_mlme "$cfg" log_mlme 1
local log_mask=$(( \
($log_80211 << 0) | \
($log_8021x << 1) | \
($log_radius << 2) | \
($log_wpa << 3) | \
($log_driver << 4) | \
($log_iapp << 5) | \
($log_mlme << 6) \
))
append "$var" "logger_syslog=$log_mask" "$N"
append "$var" "logger_syslog_level=$log_level" "$N"
append "$var" "logger_stdout=$log_mask" "$N"
append "$var" "logger_stdout_level=$log_level" "$N"
}
hostapd_setup_vif() {
local vif="$1"
local driver="$2"
local ifname device channel hwmode
hostapd_cfg=
config_get ifname "$vif" ifname
config_get device "$vif" device
config_get channel "$device" channel
config_get hwmode "$device" hwmode
hostapd_set_log_options hostapd_cfg "$device"
hostapd_set_bss_options hostapd_cfg "$vif"
case "$hwmode" in
*bg|*gdt|*gst|*fh) hwmode=g;;
*adt|*ast) hwmode=a;;
esac
[ "$channel" = auto ] && channel=
[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
cat > /var/run/hostapd-$ifname.conf <<EOF
driver=$driver
interface=$ifname
${hwmode:+hw_mode=${hwmode#11}}
${channel:+channel=$channel}
$hostapd_cfg
EOF
hostapd -P /var/run/wifi-$ifname.pid -B /var/run/hostapd-$ifname.conf
}
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