From 5c105d9f3fd086aff195d3849dcf847d6b0bd927 Mon Sep 17 00:00:00 2001
From: blogic <blogic@3c298f89-4303-0410-b956-a3cf2f4a3e73>
Date: Fri, 5 Oct 2012 10:12:53 +0000
Subject: branch Attitude Adjustment

git-svn-id: svn://svn.openwrt.org/openwrt/branches/attitude_adjustment@33625 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 package/mac80211/files/lib/wifi/mac80211.sh | 599 ++++++++++++++++++++++++++++
 1 file changed, 599 insertions(+)
 create mode 100644 package/mac80211/files/lib/wifi/mac80211.sh

(limited to 'package/mac80211/files/lib/wifi')

diff --git a/package/mac80211/files/lib/wifi/mac80211.sh b/package/mac80211/files/lib/wifi/mac80211.sh
new file mode 100644
index 000000000..1b0bea70e
--- /dev/null
+++ b/package/mac80211/files/lib/wifi/mac80211.sh
@@ -0,0 +1,599 @@
+#!/bin/sh
+append DRIVERS "mac80211"
+
+mac80211_hostapd_setup_base() {
+	local phy="$1"
+	local ifname="$2"
+
+	cfgfile="/var/run/hostapd-$phy.conf"
+	macfile="/var/run/hostapd-$phy.maclist"
+	[ -e "$macfile" ] && rm -f "$macfile"
+
+	config_get device "$vif" device
+	config_get country "$device" country
+	config_get hwmode "$device" hwmode
+	config_get channel "$device" channel
+	config_get beacon_int "$device" beacon_int
+	config_get basic_rate_list "$device" basic_rate
+	config_get_bool noscan "$device" noscan
+	config_get_bool short_preamble "$device" short_preamble "0"
+
+	hostapd_set_log_options base_cfg "$device"
+
+	[ -n "$channel" -a -z "$hwmode" ] && wifi_fixup_hwmode "$device"
+
+	[ "$channel" = auto ] && {
+		channel=$(iw phy "$phy" info | \
+			sed -ne '/MHz/ { /disabled\|passive\|radar/d; s/.*\[//; s/\].*//; p; q }')
+		config_set "$device" channel "$channel"
+	}
+
+	[ -n "$hwmode" ] && {
+		config_get hwmode_11n "$device" hwmode_11n
+		[ -n "$hwmode_11n" ] && {
+			hwmode="$hwmode_11n"
+			append base_cfg "ieee80211n=1" "$N"
+			config_get htmode "$device" htmode
+			config_get ht_capab_list "$device" ht_capab
+			case "$htmode" in
+				HT20|HT40+|HT40-) ht_capab="[$htmode]";;
+				*)ht_capab=;;
+			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"
+		}
+	}
+
+	local country_ie=0
+	[ -n "$country" ] && country_ie=1
+	config_get_bool country_ie "$device" country_ie "$country_ie"
+	[ "$country_ie" -gt 0 ] && append base_cfg "ieee80211d=1" "$N"
+
+	config_get macfilter "$vif" macfilter
+	case "$macfilter" in
+		allow)
+			append base_cfg "macaddr_acl=1" "$N"
+			append base_cfg "accept_mac_file=$macfile" "$N"
+			;;
+		deny)
+			append base_cfg "macaddr_acl=0" "$N"
+			append base_cfg "deny_mac_file=$macfile" "$N"
+			;;
+	esac
+	config_get maclist "$vif" maclist
+	[ -n "$maclist" ] && {
+		for mac in $maclist; do
+			echo "$mac" >> $macfile
+		done
+	}
+
+	local br brval brstr
+	[ -n "$basic_rate_list" ] && {
+		for br in $basic_rate_list; do
+			brval="$(($br / 100))"
+			[ -n "$brstr" ] && brstr="$brstr "
+			brstr="$brstr$brval"
+		done
+	}
+
+	append base_cfg "preamble=$short_preamble" "$N"
+	
+	cat >> "$cfgfile" <<EOF
+ctrl_interface=/var/run/hostapd-$phy
+driver=nl80211
+wmm_ac_bk_cwmin=4
+wmm_ac_bk_cwmax=10
+wmm_ac_bk_aifs=7
+wmm_ac_bk_txop_limit=0
+wmm_ac_bk_acm=0
+wmm_ac_be_aifs=3
+wmm_ac_be_cwmin=4
+wmm_ac_be_cwmax=10
+wmm_ac_be_txop_limit=0
+wmm_ac_be_acm=0
+wmm_ac_vi_aifs=2
+wmm_ac_vi_cwmin=3
+wmm_ac_vi_cwmax=4
+wmm_ac_vi_txop_limit=94
+wmm_ac_vi_acm=0
+wmm_ac_vo_aifs=2
+wmm_ac_vo_cwmin=2
+wmm_ac_vo_cwmax=3
+wmm_ac_vo_txop_limit=47
+wmm_ac_vo_acm=0
+tx_queue_data3_aifs=7
+tx_queue_data3_cwmin=15
+tx_queue_data3_cwmax=1023
+tx_queue_data3_burst=0
+tx_queue_data2_aifs=3
+tx_queue_data2_cwmin=15
+tx_queue_data2_cwmax=63
+tx_queue_data2_burst=0
+tx_queue_data1_aifs=1
+tx_queue_data1_cwmin=7
+tx_queue_data1_cwmax=15
+tx_queue_data1_burst=3.0
+tx_queue_data0_aifs=1
+tx_queue_data0_cwmin=3
+tx_queue_data0_cwmax=7
+tx_queue_data0_burst=1.5
+${hwmode:+hw_mode=$hwmode}
+${channel:+channel=$channel}
+${beacon_int:+beacon_int=$beacon_int}
+${country:+country_code=$country}
+${noscan:+noscan=$noscan}
+${brstr:+basic_rates=$brstr}
+$base_cfg
+
+EOF
+}
+
+mac80211_hostapd_setup_bss() {
+	local phy="$1"
+	local vif="$2"
+
+	hostapd_cfg=
+	cfgfile="/var/run/hostapd-$phy.conf"
+	config_get ifname "$vif" ifname
+
+	if [ -f "$cfgfile" ]; then
+		append hostapd_cfg "bss=$ifname" "$N"
+	else
+		mac80211_hostapd_setup_base "$phy" "$ifname"
+		append hostapd_cfg "interface=$ifname" "$N"
+	fi
+
+	local net_cfg bridge
+	net_cfg="$(find_net_config "$vif")"
+	[ -z "$net_cfg" ] || bridge="$(bridge_interface "$net_cfg")"
+	config_set "$vif" bridge "$bridge"
+
+	hostapd_set_bss_options hostapd_cfg "$vif"
+
+	config_get_bool wds "$vif" wds 0
+	[ "$wds" -gt 0 ] && append hostapd_cfg "wds_sta=1" "$N"
+
+	local macaddr hidden maxassoc wmm
+	config_get macaddr "$vif" macaddr
+	config_get maxassoc "$vif" maxassoc
+	config_get dtim_period "$vif" dtim_period
+	config_get max_listen_int "$vif" max_listen_int
+	config_get_bool hidden "$vif" hidden 0
+	config_get_bool wmm "$vif" wmm 1
+	cat >> /var/run/hostapd-$phy.conf <<EOF
+$hostapd_cfg
+wmm_enabled=$wmm
+bssid=$macaddr
+ignore_broadcast_ssid=$hidden
+${dtim_period:+dtim_period=$dtim_period}
+${max_listen_int:+max_listen_interval=$max_listen_int}
+${maxassoc:+max_num_sta=$maxassoc}
+EOF
+}
+
+mac80211_start_vif() {
+	local vif="$1"
+	local ifname="$2"
+
+	local net_cfg
+	net_cfg="$(find_net_config "$vif")"
+	[ -z "$net_cfg" ] || start_net "$ifname" "$net_cfg"
+
+	set_wifi_up "$vif" "$ifname"
+}
+
+find_mac80211_phy() {
+	local device="$1"
+
+	local macaddr="$(config_get "$device" macaddr | tr 'A-Z' 'a-z')"
+	config_get phy "$device" phy
+	[ -z "$phy" -a -n "$macaddr" ] && {
+		for phy in $(ls /sys/class/ieee80211 2>/dev/null); do
+			[ "$macaddr" = "$(cat /sys/class/ieee80211/${phy}/macaddress)" ] || continue
+			config_set "$device" phy "$phy"
+			break
+		done
+		config_get phy "$device" phy
+	}
+	[ -n "$phy" -a -d "/sys/class/ieee80211/$phy" ] || {
+		echo "PHY for wifi device $1 not found"
+		return 1
+	}
+	[ -z "$macaddr" ] && {
+		config_set "$device" macaddr "$(cat /sys/class/ieee80211/${phy}/macaddress)"
+	}
+	return 0
+}
+
+scan_mac80211() {
+	local device="$1"
+	local adhoc sta ap monitor mesh disabled
+
+	config_get vifs "$device" vifs
+	for vif in $vifs; do
+		config_get_bool disabled "$vif" disabled 0
+		[ $disabled = 0 ] || continue
+
+		config_get mode "$vif" mode
+		case "$mode" in
+			adhoc|sta|ap|monitor|mesh)
+				append $mode "$vif"
+			;;
+			*) echo "$device($vif): Invalid mode, ignored."; continue;;
+		esac
+	done
+
+	config_set "$device" vifs "${ap:+$ap }${adhoc:+$adhoc }${sta:+$sta }${monitor:+$monitor }${mesh:+$mesh}"
+}
+
+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
+}
+
+disable_mac80211() (
+	local device="$1"
+
+	find_mac80211_phy "$device" || return 0
+	config_get phy "$device" phy
+
+	set_wifi_down "$device"
+	# kill all running hostapd and wpa_supplicant processes that
+	# are running on atheros/mac80211 vifs
+	for pid in `pidof hostapd`; do
+		grep -E "$phy" /proc/$pid/cmdline >/dev/null && \
+			kill $pid
+	done
+
+	include /lib/network
+	for wdev in $(list_phy_interfaces "$phy"); do
+		[ -f "/var/run/$wdev.pid" ] && kill $(cat /var/run/$wdev.pid) >&/dev/null 2>&1
+		for pid in `pidof wpa_supplicant`; do
+			grep "$wdev" /proc/$pid/cmdline >/dev/null && \
+				kill $pid
+		done
+		ifconfig "$wdev" down 2>/dev/null
+		unbridge "$dev"
+		iw dev "$wdev" del
+	done
+
+	return 0
+)
+
+get_freq() {
+	local phy="$1"
+	local chan="$2"
+	iw "$phy" info | grep -E -m1 "(\* ${chan:-....} MHz${chan:+|\\[$chan\\]})" | grep MHz | awk '{print $2}'
+}
+
+mac80211_generate_mac() {
+	local off="$1"
+	local mac="$2"
+	local oIFS="$IFS"; IFS=":"; set -- $mac; IFS="$oIFS"
+
+	local b2mask=0x00
+	[ $off -gt 0 ] && b2mask=0x02
+
+	printf "%02x:%s:%s:%s:%02x:%02x" \
+		$(( 0x$1 | $b2mask )) $2 $3 $4 \
+		$(( (0x$5 + ($off / 0x100)) % 0x100 )) \
+		$(( (0x$6 + $off) % 0x100 ))
+}
+
+enable_mac80211() {
+	local device="$1"
+	config_get channel "$device" channel
+	config_get vifs "$device" vifs
+	config_get txpower "$device" txpower
+	config_get country "$device" country
+	config_get distance "$device" distance
+	config_get txantenna "$device" txantenna all
+	config_get rxantenna "$device" rxantenna all
+	config_get antenna_gain "$device" antenna_gain 0
+	config_get frag "$device" frag
+	config_get rts "$device" rts
+	find_mac80211_phy "$device" || return 0
+	config_get phy "$device" phy
+	local i=0
+	local macidx=0
+	local apidx=0
+	fixed=""
+	local hostapd_ctrl=""
+
+	[ -n "$country" ] && {
+		iw reg get | grep -q "^country $country:" || {
+			iw reg set "$country"
+			sleep 1
+		}
+	}
+
+	config_get chanbw "$device" chanbw
+	[ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath9k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath9k/chanbw
+	[ -n "$chanbw" -a -d /sys/kernel/debug/ieee80211/$phy/ath5k ] && echo "$chanbw" > /sys/kernel/debug/ieee80211/$phy/ath5k/bwmode
+
+	[ "$channel" = "auto" -o "$channel" = "0" ] || {
+		fixed=1
+	}
+
+	iw phy "$phy" set antenna $txantenna $rxantenna >/dev/null 2>&1
+	iw phy "$phy" set antenna_gain $antenna_gain
+
+	[ -n "$distance" ] && iw phy "$phy" set distance "$distance"
+	[ -n "$frag" ] && iw phy "$phy" set frag "${frag%%.*}"
+	[ -n "$rts" ] && iw phy "$phy" set rts "${rts%%.*}"
+
+	export channel fixed
+	# convert channel to frequency
+	local freq="$(get_freq "$phy" "${fixed:+$channel}")"
+
+	wifi_fixup_hwmode "$device" "g"
+	for vif in $vifs; do
+		config_get ifname "$vif" ifname
+		[ -n "$ifname" ] || {
+			[ $i -gt 0 ] && ifname="wlan${phy#phy}-$i" || ifname="wlan${phy#phy}"
+		}
+		config_set "$vif" ifname "$ifname"
+
+		config_get mode "$vif" mode
+		config_get ssid "$vif" ssid
+
+		# It is far easier to delete and create the desired interface
+		case "$mode" in
+			adhoc)
+				iw phy "$phy" interface add "$ifname" type adhoc
+			;;
+			ap)
+				# Hostapd will handle recreating the interface and
+				# it's accompanying monitor
+				apidx="$(($apidx + 1))"
+				[ "$apidx" -gt 1 ] || iw phy "$phy" interface add "$ifname" type managed
+			;;
+			mesh)
+				config_get mesh_id "$vif" mesh_id
+				iw phy "$phy" interface add "$ifname" type mp mesh_id "$mesh_id"
+			;;
+			monitor)
+				iw phy "$phy" interface add "$ifname" type monitor
+			;;
+			sta)
+				local wdsflag
+				config_get_bool wds "$vif" wds 0
+				[ "$wds" -gt 0 ] && wdsflag="4addr on"
+				iw phy "$phy" interface add "$ifname" type managed $wdsflag
+				config_get_bool powersave "$vif" powersave 0
+				[ "$powersave" -gt 0 ] && powersave="on" || powersave="off"
+				iw "$ifname" set power_save "$powersave"
+			;;
+		esac
+
+		# All interfaces must have unique mac addresses
+		# which can either be explicitly set in the device
+		# section, or automatically generated
+		config_get macaddr "$device" macaddr
+		config_get vif_mac "$vif" macaddr
+		[ -n "$vif_mac" ] || {
+			vif_mac="$(mac80211_generate_mac $macidx $macaddr)"
+			macidx="$(($macidx + 1))"
+		}
+		[ "$mode" = "ap" ] || ifconfig "$ifname" hw ether "$vif_mac"
+		config_set "$vif" macaddr "$vif_mac"
+
+		# !! ap !!
+		#
+		# ALL ap functionality will be passed to hostapd
+		#
+		# !! station !!
+		#
+		# ALL station functionality will be passed to wpa_supplicant
+		#
+		if [ ! "$mode" = "ap" ]; then
+			# We attempt to set the channel for all interfaces, although
+			# mac80211 may not support it or the driver might not yet
+			# for ap mode this is handled by hostapd
+			[ -n "$fixed" -a -n "$channel" ] && iw dev "$ifname" set channel "$channel"
+		fi
+
+		i=$(($i + 1))
+	done
+
+	local start_hostapd=
+	rm -f /var/run/hostapd-$phy.conf
+	for vif in $vifs; do
+		config_get mode "$vif" mode
+		[ "$mode" = "ap" ] || continue
+		mac80211_hostapd_setup_bss "$phy" "$vif"
+		start_hostapd=1
+	done
+
+	[ -n "$start_hostapd" ] && {
+		hostapd -P /var/run/wifi-$phy.pid -B /var/run/hostapd-$phy.conf || {
+			echo "Failed to start hostapd for $phy"
+			return
+		}
+		sleep 2
+
+		for vif in $vifs; do
+			config_get mode "$vif" mode
+			config_get ifname "$vif" ifname
+			[ "$mode" = "ap" ] || continue
+			hostapd_ctrl="${hostapd_ctrl:-/var/run/hostapd-$phy/$ifname}"
+			mac80211_start_vif "$vif" "$ifname"
+		done
+	}
+
+	for vif in $vifs; do
+		config_get mode "$vif" mode
+		config_get ifname "$vif" ifname
+		[ "$mode" = "ap" ] || ifconfig "$ifname" up
+
+		config_get vif_txpower "$vif" txpower
+		# use vif_txpower (from wifi-iface) to override txpower (from
+		# wifi-device) if the latter doesn't exist
+		txpower="${txpower:-$vif_txpower}"
+		[ -z "$txpower" ] || iw dev "$ifname" set txpower fixed "${txpower%%.*}00"
+
+		case "$mode" in
+			adhoc)
+				config_get bssid "$vif" bssid
+				config_get ssid "$vif" ssid
+				config_get beacon_int "$device" beacon_int
+				config_get basic_rate_list "$device" basic_rate
+				config_get encryption "$vif" encryption
+				config_get key "$vif" key 1
+				config_get mcast_rate "$vif" mcast_rate
+				config_get htmode "$device" htmode
+				case "$htmode" in
+					HT20|HT40+|HT40-) ;;
+					*) htmode= ;;
+				esac
+
+
+				local keyspec=""
+				[ "$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
+						}
+						# wpa_supplicant will bring the iface up
+						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"; }
+
+		cat <<EOF
+config wifi-device  radio$devidx
+	option type     mac80211
+	option channel  ${channel}
+	option macaddr	$(cat /sys/class/ieee80211/${dev}/macaddress)
+	option hwmode	11${mode_11n}${mode_band}
+$ht_capab
+	# REMOVE THIS LINE TO ENABLE WIFI:
+	option disabled 1
+
+config wifi-iface
+	option device   radio$devidx
+	option network  lan
+	option mode     ap
+	option ssid     OpenWrt
+	option encryption none
+
+EOF
+	devidx=$(($devidx + 1))
+	done
+}
+
-- 
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