. /lib/functions/network.sh

wpa_supplicant_add_rate() {
	local var="$1"
	local val="$(($2 / 1000))"
	local sub="$((($2 / 100) % 10))"
	append $var "$val" ","
	[ $sub -gt 0 ] && append $var "."
}

hostapd_add_rate() {
	local var="$1"
	local val="$(($2 / 100))"
	append $var "$val" " "
}

hostapd_append_wep_key() {
	local var="$1"

	wep_keyidx=0
	set_default key 1
	case "$key" in
		[1234])
			for idx in 1 2 3 4; do
				local zidx
				zidx=$(($idx - 1))
				json_get_var ckey "key${idx}"
				[ -n "$ckey" ] && \
					append $var "wep_key${zidx}=$(prepare_key_wep "$ckey")" "$N$T"
			done
			wep_keyidx=$((key - 1))
		;;
		*)
			append $var "wep_key0=$(prepare_key_wep "$key")" "$N$T"
		;;
	esac
}

hostapd_append_wpa_key_mgmt() {
	local auth_type_l="$(echo $auth_type | tr 'a-z' 'A-Z')"

	case "$auth_type" in
		psk|eap)
			append wpa_key_mgmt "WPA-$auth_type_l"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-${auth_type_l}"
			[ "${ieee80211w:-0}" -gt 0 ] && append wpa_key_mgmt "WPA-${auth_type_l}-SHA256"
		;;
		eap192)
			append wpa_key_mgmt "WPA-EAP-SUITE-B-192"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-EAP"
		;;
		eap-eap192)
			append wpa_key_mgmt "WPA-EAP-SUITE-B-192"
			append wpa_key_mgmt "WPA-EAP"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-EAP"
			[ "${ieee80211w:-0}" -gt 0 ] && append wpa_key_mgmt "WPA-EAP-SHA256"
		;;
		sae)
			append wpa_key_mgmt "SAE"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-SAE"
		;;
		psk-sae)
			append wpa_key_mgmt "WPA-PSK"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-PSK"
			[ "${ieee80211w:-0}" -gt 0 ] && append wpa_key_mgmt "WPA-PSK-SHA256"
			append wpa_key_mgmt "SAE"
			[ "${ieee80211r:-0}" -gt 0 ] && append wpa_key_mgmt "FT-SAE"
		;;
		owe)
			append wpa_key_mgmt "OWE"
		;;
	esac
}

hostapd_add_log_config() {
	config_add_boolean \
		log_80211 \
		log_8021x \
		log_radius \
		log_wpa \
		log_driver \
		log_iapp \
		log_mlme

	config_add_int log_level
}

hostapd_common_add_device_config() {
	config_add_array basic_rate
	config_add_array supported_rates

	config_add_string country
	config_add_boolean country_ie doth
	config_add_boolean spectrum_mgmt_required
	config_add_int local_pwr_constraint
	config_add_string require_mode
	config_add_boolean legacy_rates

	config_add_string acs_chan_bias
	config_add_array hostapd_options

	hostapd_add_log_config
}

hostapd_prepare_device_config() {
	local config="$1"
	local driver="$2"

	local base="${config%%.conf}"
	local base_cfg=

	json_get_vars country country_ie beacon_int:100 dtim_period:2 doth require_mode legacy_rates \
		acs_chan_bias local_pwr_constraint spectrum_mgmt_required

	hostapd_set_log_options base_cfg

	set_default country_ie 1
	set_default spectrum_mgmt_required 0
	set_default doth 1
	set_default legacy_rates 1

	[ "$hwmode" = "b" ] && legacy_rates=1

	[ -n "$country" ] && {
		append base_cfg "country_code=$country" "$N"

		[ "$country_ie" -gt 0 ] && {
			append base_cfg "ieee80211d=1" "$N"
			[ -n "$local_pwr_constraint" ] && append base_cfg "local_pwr_constraint=$local_pwr_constraint" "$N"
			[ "$spectrum_mgmt_required" -gt 0 ] && append base_cfg "spectrum_mgmt_required=$spectrum_mgmt_required" "$N"
		}
		[ "$hwmode" = "a" -a "$doth" -gt 0 ] && append base_cfg "ieee80211h=1" "$N"
	}

	[ -n "$acs_chan_bias" ] && append base_cfg "acs_chan_bias=$acs_chan_bias" "$N"

	local brlist= br
	json_get_values basic_rate_list basic_rate
	local rlist= r
	json_get_values rate_list supported_rates

	[ -n "$hwmode" ] && append base_cfg "hw_mode=$hwmode" "$N"
	[ "$legacy_rates" -eq 0 ] && set_default require_mode g

	[ "$hwmode" = "g" ] && {
		[ "$legacy_rates" -eq 0 ] && set_default rate_list "6000 9000 12000 18000 24000 36000 48000 54000"
		[ -n "$require_mode" ] && set_default basic_rate_list "6000 12000 24000"
	}

	case "$require_mode" in
		n) append base_cfg "require_ht=1" "$N";;
		ac) append base_cfg "require_vht=1" "$N";;
	esac

	for r in $rate_list; do
		hostapd_add_rate rlist "$r"
	done

	for br in $basic_rate_list; do
		hostapd_add_rate brlist "$br"
	done

	[ -n "$rlist" ] && append base_cfg "supported_rates=$rlist" "$N"
	[ -n "$brlist" ] && append base_cfg "basic_rates=$brlist" "$N"
	append base_cfg "beacon_int=$beacon_int" "$N"
	append base_cfg "dtim_period=$dtim_period" "$N"

	json_get_values opts hostapd_options
	for val in $opts; do
		append base_cfg "$val" "$N"
	done

	cat > "$config" <<EOF
driver=$driver
$base_cfg
EOF
}

hostapd_common_add_bss_config() {
	config_add_string 'bssid:macaddr' 'ssid:string'
	config_add_boolean wds wmm uapsd hidden utf8_ssid

	config_add_int maxassoc max_inactivity
	config_add_boolean disassoc_low_ack isolate short_preamble

	config_add_int \
		wep_rekey eap_reauth_period \
		wpa_group_rekey wpa_pair_rekey wpa_master_rekey
	config_add_boolean wpa_strict_rekey
	config_add_boolean wpa_disable_eapol_key_retries

	config_add_boolean tdls_prohibit

	config_add_boolean rsn_preauth auth_cache
	config_add_int ieee80211w
	config_add_int eapol_version

	config_add_string 'auth_server:host' 'server:host'
	config_add_string auth_secret
	config_add_int 'auth_port:port' 'port:port'

	config_add_string acct_server
	config_add_string acct_secret
	config_add_int acct_port
	config_add_int acct_interval

	config_add_string dae_client
	config_add_string dae_secret
	config_add_int dae_port

	config_add_string nasid
	config_add_string ownip
	config_add_string radius_client_addr
	config_add_string iapp_interface
	config_add_string eap_type ca_cert client_cert identity anonymous_identity auth priv_key priv_key_pwd
	config_add_boolean ca_cert_usesystem ca_cert2_usesystem
	config_add_string subject_match subject_match2
	config_add_array altsubject_match altsubject_match2
	config_add_array domain_match domain_match2 domain_suffix_match domain_suffix_match2
	config_add_string ieee80211w_mgmt_cipher

	config_add_int dynamic_vlan vlan_naming
	config_add_string vlan_tagged_interface vlan_bridge
	config_add_string vlan_file

	config_add_string 'key1:wepkey' 'key2:wepkey' 'key3:wepkey' 'key4:wepkey' 'password:wpakey'

	config_add_string wpa_psk_file

	config_add_int multi_ap

	config_add_boolean wps_pushbutton wps_label ext_registrar wps_pbc_in_m1
	config_add_int wps_ap_setup_locked wps_independent
	config_add_string wps_device_type wps_device_name wps_manufacturer wps_pin
	config_add_string multi_ap_backhaul_ssid multi_ap_backhaul_key

	config_add_boolean ieee80211v wnm_sleep_mode bss_transition
	config_add_int time_advertisement
	config_add_string time_zone

	config_add_boolean ieee80211k rrm_neighbor_report rrm_beacon_report

	config_add_boolean ieee80211r pmk_r1_push ft_psk_generate_local ft_over_ds
	config_add_int r0_key_lifetime reassociation_deadline
	config_add_string mobility_domain r1_key_holder
	config_add_array r0kh r1kh

	config_add_int ieee80211w_max_timeout ieee80211w_retry_timeout

	config_add_string macfilter 'macfile:file'
	config_add_array 'maclist:list(macaddr)'

	config_add_array bssid_blacklist
	config_add_array bssid_whitelist

	config_add_int mcast_rate
	config_add_array basic_rate
	config_add_array supported_rates
	
	config_add_boolean sae_require_mfp
	
	config_add_string 'owe_transition_bssid:macaddr' 'owe_transition_ssid:string'
}

hostapd_set_vlan_file() {
	local ifname="$1"
	local vlan="$2"
	json_get_vars name vid
	echo "${vid} ${ifname}-${name}" >> /var/run/hostapd-${ifname}.vlan
	wireless_add_vlan "${vlan}" "${ifname}-${name}"
}

hostapd_set_vlan() {
	local ifname="$1"

	rm -f /var/run/hostapd-${ifname}.vlan
	for_each_vlan hostapd_set_vlan_file ${ifname}
}

hostapd_set_psk_file() {
	local ifname="$1"
	local vlan="$2"
	local vlan_id=""

	json_get_vars mac vid key
	set_default mac "00:00:00:00:00:00"
	[ -n "$vid" ] && vlan_id="vlanid=$vid "
	echo "${vlan_id} ${mac} ${key}" >> /var/run/hostapd-${ifname}.psk
}

hostapd_set_psk() {
	local ifname="$1"

	rm -f /var/run/hostapd-${ifname}.psk
	for_each_station hostapd_set_psk_file ${ifname}
}

hostapd_set_bss_options() {
	local var="$1"
	local phy="$2"
	local vif="$3"

	wireless_vif_parse_encryption

	local bss_conf bss_md5sum
	local wep_rekey wpa_group_rekey wpa_pair_rekey wpa_master_rekey wpa_key_mgmt

	json_get_vars \
		wep_rekey wpa_group_rekey wpa_pair_rekey wpa_master_rekey wpa_strict_rekey \
		wpa_disable_eapol_key_retries tdls_prohibit \
		maxassoc max_inactivity disassoc_low_ack isolate auth_cache \
		wps_pushbutton wps_label ext_registrar wps_pbc_in_m1 wps_ap_setup_locked \
		wps_independent wps_device_type wps_device_name wps_manufacturer wps_pin \
		macfilter ssid utf8_ssid wmm uapsd hidden short_preamble rsn_preauth \
		iapp_interface eapol_version dynamic_vlan ieee80211w nasid \
		acct_server acct_secret acct_port acct_interval \
		bss_load_update_period chan_util_avg_period sae_require_mfp \
		multi_ap multi_ap_backhaul_ssid multi_ap_backhaul_key

	set_default isolate 0
	set_default maxassoc 0
	set_default max_inactivity 0
	set_default short_preamble 1
	set_default disassoc_low_ack 1
	set_default hidden 0
	set_default wmm 1
	set_default uapsd 1
	set_default wpa_disable_eapol_key_retries 0
	set_default tdls_prohibit 0
	set_default eapol_version 0
	set_default acct_port 1813
	set_default bss_load_update_period 60
	set_default chan_util_avg_period 600
	set_default utf8_ssid 1
	set_default multi_ap 0

	append bss_conf "ctrl_interface=/var/run/hostapd"
	if [ "$isolate" -gt 0 ]; then
		append bss_conf "ap_isolate=$isolate" "$N"
	fi
	if [ "$maxassoc" -gt 0 ]; then
		append bss_conf "max_num_sta=$maxassoc" "$N"
	fi
	if [ "$max_inactivity" -gt 0 ]; then
		append bss_conf "ap_max_inactivity=$max_inactivity" "$N"
	fi

	append bss_conf "bss_load_update_period=$bss_load_update_period" "$N"
	append bss_conf "chan_util_avg_period=$chan_util_avg_period" "$N"
	append bss_conf "disassoc_low_ack=$disassoc_low_ack" "$N"
	append bss_conf "preamble=$short_preamble" "$N"
	append bss_conf "wmm_enabled=$wmm" "$N"
	append bss_conf "ignore_broadcast_ssid=$hidden" "$N"
	append bss_conf "uapsd_advertisement_enabled=$uapsd" "$N"
	append bss_conf "utf8_ssid=$utf8_ssid" "$N"
	append bss_conf "multi_ap=$multi_ap" "$N"

	[ "$tdls_prohibit" -gt 0 ] && append bss_conf "tdls_prohibit=$tdls_prohibit" "$N"

	[ "$wpa" -gt 0 ] && {
		[ -n "$wpa_group_rekey"  ] && append bss_conf "wpa_group_rekey=$wpa_group_rekey" "$N"
		[ -n "$wpa_pair_rekey"   ] && append bss_conf "wpa_ptk_rekey=$wpa_pair_rekey"    "$N"
		[ -n "$wpa_master_rekey" ] && append bss_conf "wpa_gmk_rekey=$wpa_master_rekey"  "$N"
		[ -n "$wpa_strict_rekey" ] && append bss_conf "wpa_strict_rekey=$wpa_strict_rekey" "$N"
	}

	[ -n "$nasid" ] && append bss_conf "nas_identifier=$nasid" "$N"
	[ -n "$acct_server" ] && {
		append bss_conf "acct_server_addr=$acct_server" "$N"
		append bss_conf "acct_server_port=$acct_port" "$N"
		[ -n "$acct_secret" ] && \
			append bss_conf "acct_server_shared_secret=$acct_secret" "$N"
		[ -n "$acct_interval" ] && \
			append bss_conf "radius_acct_interim_interval=$acct_interval" "$N"
	}

	case "$auth_type" in
		sae|owe|eap192|eap-eap192)
			set_default ieee80211w 2
			set_default sae_require_mfp 1
		;;
		psk-sae)
			set_default ieee80211w 1
			set_default sae_require_mfp 1
		;;
	esac
	[ -n "$sae_require_mfp" ] && append bss_conf "sae_require_mfp=$sae_require_mfp" "$N"

	local vlan_possible=""

	case "$auth_type" in
		none|owe)
			json_get_vars owe_transition_bssid owe_transition_ssid

			[ -n "$owe_transition_ssid" ] && append bss_conf "owe_transition_ssid=\"$owe_transition_ssid\"" "$N"
			[ -n "$owe_transition_bssid" ] && append bss_conf "owe_transition_bssid=$owe_transition_bssid" "$N"

			wps_possible=1
			# 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|sae|psk-sae)
			json_get_vars key wpa_psk_file
			if [ ${#key} -eq 64 ]; then
				append bss_conf "wpa_psk=$key" "$N"
			elif [ ${#key} -ge 8 ] && [ ${#key} -le 63 ]; then
				append bss_conf "wpa_passphrase=$key" "$N"
			elif [ -n "$key" ] || [ -z "$wpa_psk_file" ]; then
				wireless_setup_vif_failed INVALID_WPA_PSK
				return 1
			fi
			[ -z "$wpa_psk_file" ] && set_default wpa_psk_file /var/run/hostapd-$ifname.psk
			[ -n "$wpa_psk_file" ] && {
				[ -e "$wpa_psk_file" ] || touch "$wpa_psk_file"
				append bss_conf "wpa_psk_file=$wpa_psk_file" "$N"
			}
			[ "$eapol_version" -ge "1" -a "$eapol_version" -le "2" ] && append bss_conf "eapol_version=$eapol_version" "$N"

			set_default dynamic_vlan 0
			vlan_possible=1
			wps_possible=1
		;;
		eap|eap192|eap-eap192)
			json_get_vars \
				auth_server auth_secret auth_port \
				dae_client dae_secret dae_port \
				ownip radius_client_addr \
				eap_reauth_period

			# radius can provide VLAN ID for clients
			vlan_possible=1

			# legacy compatibility
			[ -n "$auth_server" ] || json_get_var auth_server server
			[ -n "$auth_port" ] || json_get_var auth_port port
			[ -n "$auth_secret" ] || json_get_var auth_secret key

			set_default auth_port 1812
			set_default dae_port 3799


			append bss_conf "auth_server_addr=$auth_server" "$N"
			append bss_conf "auth_server_port=$auth_port" "$N"
			append bss_conf "auth_server_shared_secret=$auth_secret" "$N"

			[ -n "$eap_reauth_period" ] && append bss_conf "eap_reauth_period=$eap_reauth_period" "$N"

			[ -n "$dae_client" -a -n "$dae_secret" ] && {
				append bss_conf "radius_das_port=$dae_port" "$N"
				append bss_conf "radius_das_client=$dae_client $dae_secret" "$N"
			}

			[ -n "$ownip" ] && append bss_conf "own_ip_addr=$ownip" "$N"
			[ -n "$radius_client_addr" ] && append bss_conf "radius_client_addr=$radius_client_addr" "$N"
			append bss_conf "eapol_key_index_workaround=1" "$N"
			append bss_conf "ieee8021x=1" "$N"

			[ "$eapol_version" -ge "1" -a "$eapol_version" -le "2" ] && append bss_conf "eapol_version=$eapol_version" "$N"
		;;
		wep)
			local wep_keyidx=0
			json_get_vars key
			hostapd_append_wep_key bss_conf
			append bss_conf "wep_default_key=$wep_keyidx" "$N"
			[ -n "$wep_rekey" ] && append bss_conf "wep_rekey_period=$wep_rekey" "$N"
		;;
	esac

	local auth_algs=$((($auth_mode_shared << 1) | $auth_mode_open))
	append bss_conf "auth_algs=${auth_algs:-1}" "$N"
	append bss_conf "wpa=$wpa" "$N"
	[ -n "$wpa_pairwise" ] && append bss_conf "wpa_pairwise=$wpa_pairwise" "$N"

	set_default wps_pushbutton 0
	set_default wps_label 0
	set_default wps_pbc_in_m1 0

	config_methods=
	[ "$wps_pushbutton" -gt 0 ] && append config_methods push_button
	[ "$wps_label" -gt 0 ] && append config_methods label

	# WPS not possible on Multi-AP backhaul-only SSID
	[ "$multi_ap" = 1 ] && wps_possible=

	[ -n "$wps_possible" -a -n "$config_methods" ] && {
		set_default ext_registrar 0
		set_default wps_device_type "6-0050F204-1"
		set_default wps_device_name "OpenWrt AP"
		set_default wps_manufacturer "www.openwrt.org"
		set_default wps_independent 1

		wps_state=2
		[ -n "$wps_configured" ] && wps_state=1

		[ "$ext_registrar" -gt 0 -a -n "$network_bridge" ] && append bss_conf "upnp_iface=$network_bridge" "$N"

		append bss_conf "eap_server=1" "$N"
		[ -n "$wps_pin" ] && append bss_conf "ap_pin=$wps_pin" "$N"
		append bss_conf "wps_state=$wps_state" "$N"
		append bss_conf "device_type=$wps_device_type" "$N"
		append bss_conf "device_name=$wps_device_name" "$N"
		append bss_conf "manufacturer=$wps_manufacturer" "$N"
		append bss_conf "config_methods=$config_methods" "$N"
		append bss_conf "wps_independent=$wps_independent" "$N"
		[ -n "$wps_ap_setup_locked" ] && append bss_conf "ap_setup_locked=$wps_ap_setup_locked" "$N"
		[ "$wps_pbc_in_m1" -gt 0 ] && append bss_conf "pbc_in_m1=$wps_pbc_in_m1" "$N"
		[ "$multi_ap" -gt 0 ] && [ -n "$multi_ap_backhaul_ssid" ] && {
			append bss_conf "multi_ap_backhaul_ssid=\"$multi_ap_backhaul_ssid\"" "$N"
			if [ -z "$multi_ap_backhaul_key" ]; then
				:
			elif [ ${#multi_ap_backhaul_key} -lt 8 ]; then
				wireless_setup_vif_failed INVALID_WPA_PSK
				return 1
			elif [ ${#multi_ap_backhaul_key} -eq 64 ]; then
				append bss_conf "multi_ap_backhaul_wpa_psk=$multi_ap_backhaul_key" "$N"
			else
				append bss_conf "multi_ap_backhaul_wpa_passphrase=$multi_ap_backhaul_key" "$N"
			fi
		}
	}

	append bss_conf "ssid=$ssid" "$N"
	[ -n "$network_bridge" ] && append bss_conf "bridge=$network_bridge" "$N"
	[ -n "$iapp_interface" ] && {
		local ifname
		network_get_device ifname "$iapp_interface" || ifname="$iapp_interface"
		append bss_conf "iapp_interface=$ifname" "$N"
	}

	json_get_vars ieee80211v
	set_default ieee80211v 0
	if [ "$ieee80211v" -eq "1" ]; then
		json_get_vars time_advertisement time_zone wnm_sleep_mode bss_transition

		set_default time_advertisement 0
		set_default wnm_sleep_mode 0
		set_default bss_transition 0

		append bss_conf "time_advertisement=$time_advertisement" "$N"
		[ -n "$time_zone" ] && append bss_conf "time_zone=$time_zone" "$N"
		append bss_conf "wnm_sleep_mode=$wnm_sleep_mode" "$N"
		append bss_conf "bss_transition=$bss_transition" "$N"
	fi

	json_get_vars ieee80211k
	set_default ieee80211k 0
	if [ "$ieee80211k" -eq "1" ]; then
		json_get_vars rrm_neighbor_report rrm_beacon_report

		set_default rrm_neighbor_report 1
		set_default rrm_beacon_report 1
		append bss_conf "rrm_neighbor_report=$rrm_neighbor_report" "$N"
		append bss_conf "rrm_beacon_report=$rrm_beacon_report" "$N"
	fi

	if [ "$wpa" -ge "1" ]; then
		json_get_vars ieee80211r
		set_default ieee80211r 0

		if [ "$ieee80211r" -gt "0" ]; then
			json_get_vars mobility_domain ft_psk_generate_local ft_over_ds reassociation_deadline
			
			set_default mobility_domain "$(echo "$ssid" | md5sum | head -c 4)"
			set_default ft_over_ds 1
			set_default reassociation_deadline 1000

			case "$auth_type" in
				psk|sae|psk-sae)
					set_default ft_psk_generate_local 1
				;;
				*)
					set_default ft_psk_generate_local 0
				;;
			esac

			append bss_conf "mobility_domain=$mobility_domain" "$N"
			append bss_conf "ft_psk_generate_local=$ft_psk_generate_local" "$N"
			append bss_conf "ft_over_ds=$ft_over_ds" "$N"
			append bss_conf "reassociation_deadline=$reassociation_deadline" "$N"
			[ -n "$nasid" ] || append bss_conf "nas_identifier=${macaddr//\:}" "$N"

			if [ "$ft_psk_generate_local" -eq "0" ]; then
				json_get_vars r0_key_lifetime r1_key_holder pmk_r1_push
				json_get_values r0kh r0kh
				json_get_values r1kh r1kh

				set_default r0_key_lifetime 10000
				set_default pmk_r1_push 0

				[ -n "$r1_key_holder" ] && append bss_conf "r1_key_holder=$r1_key_holder" "$N"
				append bss_conf "r0_key_lifetime=$r0_key_lifetime" "$N"
				append bss_conf "pmk_r1_push=$pmk_r1_push" "$N"

				for kh in $r0kh; do
					append bss_conf "r0kh=${kh//,/ }" "$N"
				done
				for kh in $r1kh; do
					append bss_conf "r1kh=${kh//,/ }" "$N"
				done
			fi
		fi

		append bss_conf "wpa_disable_eapol_key_retries=$wpa_disable_eapol_key_retries" "$N"

		hostapd_append_wpa_key_mgmt
		[ -n "$wpa_key_mgmt" ] && append bss_conf "wpa_key_mgmt=$wpa_key_mgmt" "$N"
	fi

	if [ "$wpa" -ge "2" ]; then
		if [ -n "$network_bridge" -a "$rsn_preauth" = 1 ]; then
			set_default auth_cache 1
			append bss_conf "rsn_preauth=1" "$N"
			append bss_conf "rsn_preauth_interfaces=$network_bridge" "$N"
		else
			case "$auth_type" in
			sae|psk-sae|owe)
				set_default auth_cache 1
			;;
			*)
				set_default auth_cache 0
			;;
			esac
		fi

		append bss_conf "okc=$auth_cache" "$N"
		[ "$auth_cache" = 0 ] && append bss_conf "disable_pmksa_caching=1" "$N"

		# RSN -> allow management frame protection
		case "$ieee80211w" in
			[012])
				json_get_vars ieee80211w_mgmt_cipher ieee80211w_max_timeout ieee80211w_retry_timeout
				append bss_conf "ieee80211w=$ieee80211w" "$N"
				[ "$ieee80211w" -gt "0" ] && {
					append bss_conf "group_mgmt_cipher=${ieee80211w_mgmt_cipher:-AES-128-CMAC}" "$N"
					[ -n "$ieee80211w_max_timeout" ] && \
						append bss_conf "assoc_sa_query_max_timeout=$ieee80211w_max_timeout" "$N"
					[ -n "$ieee80211w_retry_timeout" ] && \
						append bss_conf "assoc_sa_query_retry_timeout=$ieee80211w_retry_timeout" "$N"
				}
			;;
		esac
	fi

	_macfile="/var/run/hostapd-$ifname.maclist"
	case "$macfilter" in
		allow)
			append bss_conf "macaddr_acl=1" "$N"
			append bss_conf "accept_mac_file=$_macfile" "$N"
			# accept_mac_file can be used to set MAC to VLAN ID mapping
			vlan_possible=1
		;;
		deny)
			append bss_conf "macaddr_acl=0" "$N"
			append bss_conf "deny_mac_file=$_macfile" "$N"
		;;
		*)
			_macfile=""
		;;
	esac

	[ -n "$_macfile" ] && {
		json_get_vars macfile
		json_get_values maclist maclist

		rm -f "$_macfile"
		(
			for mac in $maclist; do
				echo "$mac"
			done
			[ -n "$macfile" -a -f "$macfile" ] && cat "$macfile"
		) > "$_macfile"
	}

	[ -n "$vlan_possible" -a -n "$dynamic_vlan" ] && {
		json_get_vars vlan_naming vlan_tagged_interface vlan_bridge vlan_file
		set_default vlan_naming 1
		[ -z "$vlan_file" ] && set_default vlan_file /var/run/hostapd-$ifname.vlan
		append bss_conf "dynamic_vlan=$dynamic_vlan" "$N"
		append bss_conf "vlan_naming=$vlan_naming" "$N"
		[ -n "$vlan_bridge" ] && \
			append bss_conf "vlan_bridge=$vlan_bridge" "$N"
		[ -n "$vlan_tagged_interface" ] && \
			append bss_conf "vlan_tagged_interface=$vlan_tagged_interface" "$N"
		[ -n "$vlan_file" ] && {
			[ -e "$vlan_file" ] || touch "$vlan_file"
			append bss_conf "vlan_file=$vlan_file" "$N"
		}
	}

	bss_md5sum=$(echo $bss_conf | md5sum | cut -d" " -f1)
	append bss_conf "config_id=$bss_md5sum" "$N"

	append "$var" "$bss_conf" "$N"
	return 0
}

hostapd_set_log_options() {
	local var="$1"

	local log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme
	json_get_vars log_level log_80211 log_8021x log_radius log_wpa log_driver log_iapp log_mlme

	set_default log_level 2
	set_default log_80211  1
	set_default log_8021x  1
	set_default log_radius 1
	set_default log_wpa    1
	set_default log_driver 1
	set_default log_iapp   1
	set_default 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"

	return 0
}

_wpa_supplicant_common() {
	local ifname="$1"

	_rpath="/var/run/wpa_supplicant"
	_config="${_rpath}-$ifname.conf"
}

wpa_supplicant_teardown_interface() {
	_wpa_supplicant_common "$1"
	rm -rf "$_rpath/$1" "$_config"
}

wpa_supplicant_prepare_interface() {
	local ifname="$1"
	_w_driver="$2"

	_wpa_supplicant_common "$1"

	json_get_vars mode wds multi_ap

	[ -n "$network_bridge" ] && {
		fail=
		case "$mode" in
			adhoc)
				fail=1
			;;
			sta)
				[ "$wds" = 1 -o "$multi_ap" = 1 ] || fail=1
			;;
		esac

		[ -n "$fail" ] && {
			wireless_setup_vif_failed BRIDGE_NOT_ALLOWED
			return 1
		}
	}

	local ap_scan=

	_w_mode="$mode"

	[ "$mode" = adhoc ] && {
		ap_scan="ap_scan=2"
	}

	local country_str=
	[ -n "$country" ] && {
		country_str="country=$country"
	}

	multiap_flag_file="${_config}.is_multiap"
	if [ "$multi_ap" = "1" ]; then
		touch "$multiap_flag_file"
	else
		[ -e "$multiap_flag_file" ] && rm "$multiap_flag_file"
	fi
	wpa_supplicant_teardown_interface "$ifname"
	cat > "$_config" <<EOF
$ap_scan
$country_str
EOF
	return 0
}

wpa_supplicant_set_fixed_freq() {
	local freq="$1"
	local htmode="$2"

	append network_data "fixed_freq=1" "$N$T"
	append network_data "frequency=$freq" "$N$T"
	case "$htmode" in
		NOHT) append network_data "disable_ht=1" "$N$T";;
		HT20|VHT20) append network_data "disable_ht40=1" "$N$T";;
		HT40*|VHT40*|VHT80*|VHT160*) append network_data "ht40=1" "$N$T";;
	esac
	case "$htmode" in
		VHT*) append network_data "vht=1" "$N$T";;
	esac
	case "$htmode" in
		VHT80) append network_data "max_oper_chwidth=1" "$N$T";;
		VHT160) append network_data "max_oper_chwidth=2" "$N$T";;
		VHT20|VHT40) append network_data "max_oper_chwidth=0" "$N$T";;
		*) append network_data "disable_vht=1" "$N$T";;
	esac
}

wpa_supplicant_add_network() {
	local ifname="$1"
	local freq="$2"
	local htmode="$3"
	local noscan="$4"

	_wpa_supplicant_common "$1"
	wireless_vif_parse_encryption

	json_get_vars \
		ssid bssid key \
		basic_rate mcast_rate \
		ieee80211w ieee80211r \
		multi_ap

	case "$auth_type" in
		sae|owe|eap192|eap-eap192)
			set_default ieee80211w 2
		;;
		psk-sae)
			set_default ieee80211w 1
		;;
	esac

	set_default ieee80211r 0
	set_default multi_ap 0

	local key_mgmt='NONE'
	local enc_str=
	local network_data=
	local T="	"

	local scan_ssid="scan_ssid=1"
	local freq wpa_key_mgmt

	[ "$_w_mode" = "adhoc" ] && {
		append network_data "mode=1" "$N$T"
		[ -n "$freq" ] && wpa_supplicant_set_fixed_freq "$freq" "$htmode"
		[ "$noscan" = "1" ] && append network_data "noscan=1" "$N$T"

		scan_ssid="scan_ssid=0"

		[ "$_w_driver" = "nl80211" ] ||	append wpa_key_mgmt "WPA-NONE"
	}

	[ "$_w_mode" = "mesh" ] && {
		json_get_vars mesh_id mesh_fwding mesh_rssi_threshold
		[ -n "$mesh_id" ] && ssid="${mesh_id}"

		append network_data "mode=5" "$N$T"
		[ -n "$mesh_fwding" ] && append network_data "mesh_fwding=${mesh_fwding}" "$N$T"
		[ -n "$mesh_rssi_threshold" ] && append network_data "mesh_rssi_threshold=${mesh_rssi_threshold}" "$N$T"
		[ -n "$freq" ] && wpa_supplicant_set_fixed_freq "$freq" "$htmode"
		[ "$noscan" = "1" ] && append network_data "noscan=1" "$N$T"
		append wpa_key_mgmt "SAE"
		scan_ssid=""
	}

	[ "$multi_ap" = 1 -a "$_w_mode" = "sta" ] && append network_data "multi_ap_backhaul_sta=1" "$N$T"

	case "$auth_type" in
		none) ;;
		owe)
			hostapd_append_wpa_key_mgmt
			key_mgmt="$wpa_key_mgmt"
		;;
		wep)
			local wep_keyidx=0
			hostapd_append_wep_key network_data
			append network_data "wep_tx_keyidx=$wep_keyidx" "$N$T"
		;;
		wps)
			key_mgmt='WPS'
		;;
		psk|sae|psk-sae)
			local passphrase

			if [ "$_w_mode" != "mesh" ]; then
				hostapd_append_wpa_key_mgmt
			fi

			key_mgmt="$wpa_key_mgmt"

			if [ ${#key} -eq 64 ]; then
				passphrase="psk=${key}"
			else
				if [ "$_w_mode" = "mesh" ]; then
					passphrase="sae_password=\"${key}\""
				else
					passphrase="psk=\"${key}\""
				fi
			fi
			append network_data "$passphrase" "$N$T"
		;;
		eap|eap192|eap-eap192)
			hostapd_append_wpa_key_mgmt
			key_mgmt="$wpa_key_mgmt"

			json_get_vars eap_type identity anonymous_identity ca_cert ca_cert_usesystem

			if [ "$ca_cert_usesystem" -eq "1" -a -f "/etc/ssl/certs/ca-certificates.crt" ]; then
				append network_data "ca_cert=\"/etc/ssl/certs/ca-certificates.crt\"" "$N$T"
			else
				[ -n "$ca_cert" ] && append network_data "ca_cert=\"$ca_cert\"" "$N$T"
			fi
			[ -n "$identity" ] && append network_data "identity=\"$identity\"" "$N$T"
			[ -n "$anonymous_identity" ] && append network_data "anonymous_identity=\"$anonymous_identity\"" "$N$T"
			case "$eap_type" in
				tls)
					json_get_vars client_cert priv_key priv_key_pwd
					append network_data "client_cert=\"$client_cert\"" "$N$T"
					append network_data "private_key=\"$priv_key\"" "$N$T"
					append network_data "private_key_passwd=\"$priv_key_pwd\"" "$N$T"

					json_get_vars subject_match
					[ -n "$subject_match" ] && append network_data "subject_match=\"$subject_match\"" "$N$T"

					json_get_values altsubject_match altsubject_match
					if [ -n "$altsubject_match" ]; then
						local list=
						for x in $altsubject_match; do
							append list "$x" ";"
						done
						append network_data "altsubject_match=\"$list\"" "$N$T"
					fi

					json_get_values domain_match domain_match
					if [ -n "$domain_match" ]; then
						local list=
						for x in $domain_match; do
							append list "$x" ";"
						done
						append network_data "domain_match=\"$list\"" "$N$T"
					fi

					json_get_values domain_suffix_match domain_suffix_match
					if [ -n "$domain_suffix_match" ]; then
						local list=
						for x in $domain_suffix_match; do
							append list "$x" ";"
						done
						append network_data "domain_suffix_match=\"$list\"" "$N$T"
					fi
				;;
				fast|peap|ttls)
					json_get_vars auth password ca_cert2 ca_cert2_usesystem client_cert2 priv_key2 priv_key2_pwd
					set_default auth MSCHAPV2

					if [ "$auth" = "EAP-TLS" ]; then
						if [ "$ca_cert2_usesystem" -eq "1" -a -f "/etc/ssl/certs/ca-certificates.crt" ]; then
							append network_data "ca_cert2=\"/etc/ssl/certs/ca-certificates.crt\"" "$N$T"
						else
							[ -n "$ca_cert2" ] && append network_data "ca_cert2=\"$ca_cert2\"" "$N$T"
						fi
						append network_data "client_cert2=\"$client_cert2\"" "$N$T"
						append network_data "private_key2=\"$priv_key2\"" "$N$T"
						append network_data "private_key2_passwd=\"$priv_key2_pwd\"" "$N$T"
					else
						append network_data "password=\"$password\"" "$N$T"
					fi

					json_get_vars subject_match
					[ -n "$subject_match" ] && append network_data "subject_match=\"$subject_match\"" "$N$T"

					json_get_values altsubject_match altsubject_match
					if [ -n "$altsubject_match" ]; then
						local list=
						for x in $altsubject_match; do
							append list "$x" ";"
						done
						append network_data "altsubject_match=\"$list\"" "$N$T"
					fi

					json_get_values domain_match domain_match
					if [ -n "$domain_match" ]; then
						local list=
						for x in $domain_match; do
							append list "$x" ";"
						done
						append network_data "domain_match=\"$list\"" "$N$T"
					fi

					json_get_values domain_suffix_match domain_suffix_match
					if [ -n "$domain_suffix_match" ]; then
						local list=
						for x in $domain_suffix_match; do
							append list "$x" ";"
						done
						append network_data "domain_suffix_match=\"$list\"" "$N$T"
					fi

					phase2proto="auth="
					case "$auth" in
						"auth"*)
							phase2proto=""
						;;
						"EAP-"*)
							auth="$(echo $auth | cut -b 5- )"
							[ "$eap_type" = "ttls" ] &&
								phase2proto="autheap="
							json_get_vars subject_match2
							[ -n "$subject_match2" ] && append network_data "subject_match2=\"$subject_match2\"" "$N$T"

							json_get_values altsubject_match2 altsubject_match2
							if [ -n "$altsubject_match2" ]; then
								local list=
								for x in $altsubject_match2; do
									append list "$x" ";"
								done
								append network_data "altsubject_match2=\"$list\"" "$N$T"
							fi

							json_get_values domain_match2 domain_match2
							if [ -n "$domain_match2" ]; then
								local list=
								for x in $domain_match2; do
									append list "$x" ";"
								done
								append network_data "domain_match2=\"$list\"" "$N$T"
							fi

							json_get_values domain_suffix_match2 domain_suffix_match2
							if [ -n "$domain_suffix_match2" ]; then
								local list=
								for x in $domain_suffix_match2; do
									append list "$x" ";"
								done
								append network_data "domain_suffix_match2=\"$list\"" "$N$T"
							fi
						;;
					esac
					append network_data "phase2=\"$phase2proto$auth\"" "$N$T"
				;;
			esac
			append network_data "eap=$(echo $eap_type | tr 'a-z' 'A-Z')" "$N$T"
		;;
	esac

	[ "$mode" = mesh ] || {
		case "$wpa" in
			1)
				append network_data "proto=WPA" "$N$T"
			;;
			2)
				append network_data "proto=RSN" "$N$T"
			;;
		esac

		case "$ieee80211w" in
			[012])
				[ "$wpa" -ge 2 ] && append network_data "ieee80211w=$ieee80211w" "$N$T"
			;;
		esac
	}
	[ -n "$bssid" ] && append network_data "bssid=$bssid" "$N$T"
	[ -n "$beacon_int" ] && append network_data "beacon_int=$beacon_int" "$N$T"

	local bssid_blacklist bssid_whitelist
	json_get_values bssid_blacklist bssid_blacklist
	json_get_values bssid_whitelist bssid_whitelist

	[ -n "$bssid_blacklist" ] && append network_data "bssid_blacklist=$bssid_blacklist" "$N$T"
	[ -n "$bssid_whitelist" ] && append network_data "bssid_whitelist=$bssid_whitelist" "$N$T"

	[ -n "$basic_rate" ] && {
		local br rate_list=
		for br in $basic_rate; do
			wpa_supplicant_add_rate rate_list "$br"
		done
		[ -n "$rate_list" ] && append network_data "rates=$rate_list" "$N$T"
	}

	[ -n "$mcast_rate" ] && {
		local mc_rate=
		wpa_supplicant_add_rate mc_rate "$mcast_rate"
		append network_data "mcast_rate=$mc_rate" "$N$T"
	}

	if [ "$key_mgnt" = "WPS" ]; then
		echo "wps_cred_processing=1" >> "$_config"
	else
		cat >> "$_config" <<EOF
network={
	$scan_ssid
	ssid="$ssid"
	key_mgmt=$key_mgmt
	$network_data
}
EOF
	fi
	return 0
}

wpa_supplicant_run() {
	local ifname="$1"
	local hostapd_ctrl="$2"

	_wpa_supplicant_common "$ifname"

	ubus wait_for wpa_supplicant
	ubus call wpa_supplicant config_add "{ \
		\"driver\": \"${_w_driver:-wext}\", \"ctrl\": \"$_rpath\", \
		\"iface\": \"$ifname\", \"config\": \"$_config\" \
		${network_bridge:+, \"bridge\": \"$network_bridge\"} \
		${hostapd_ctrl:+, \"hostapd_ctrl\": \"$hostapd_ctrl\"} \
		}"

	ret="$?"

	[ "$ret" != 0 ] && wireless_setup_vif_failed WPA_SUPPLICANT_FAILED

	local supplicant_pid=$(ubus call service list '{"name": "wpad"}' | jsonfilter -l 1 -e "@['wpad'].instances['supplicant'].pid")
	wireless_add_process "$supplicant_pid" "/usr/sbin/wpa_supplicant" 1

	return $ret
}

hostapd_common_cleanup() {
	killall meshd-nl80211
}