Merge net.OS into net

1 files changed, 761 insertions, 0 deletions

diff --git a/net/iwconfig.sh.Linux.in b/net/iwconfig.sh.Linux.in
new file mode 100644
index 0000000..1610cba
--- /dev/null
+++ b/net/iwconfig.sh.Linux.in
@@ -0,0 +1,761 @@
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+_config_vars="$_config_vars ssid mode associate_timeout sleep_scan"
+_config_vars="$_config_vars preferred_aps blacklist_aps"
+
+iwconfig_depend()
+{
+	program /sbin/iwconfig
+	after plug
+	before interface
+	provide wireless
+}
+
+iwconfig_get_wep_status()
+{
+	local mode= status="disabled"
+
+	# No easy way of doing this grep in bash regex :/
+	if LC_ALL=C iwconfig "${IFACE}" | \
+	grep -qE "^ +Encryption key:[*0-9,A-F]"; then
+		status="enabled"
+		mode=$(LC_ALL=C iwconfig "${IFACE}" | \
+		sed -n -e 's/^.*Security mode:\(.*[^ ]\).*/\1/p')
+		[ -n "${mode}" ] && mode=" - ${mode}"
+	fi
+
+	echo "(WEP ${status}${mode})"
+}
+
+_get_ssid()
+{
+	local i=5 ssid=
+
+	while [ ${i} -gt 0 ]; do
+		ssid=$(iwgetid --raw "${IFACE}")
+		if [ -n "${ssid}" ]; then
+			echo "${ssid}"
+			return 0
+		fi
+		sleep 1
+		i=$((${i} + 1))
+	done
+
+	return 1
+}
+
+_get_ap_mac_address()
+{
+	local mac="$(iwgetid --raw --ap "${IFACE}")" 
+	case "${mac}" in
+		"00:00:00:00:00:00") return 1;;
+		"44:44:44:44:44:44") return 1;;
+		"FF:00:00:00:00:00") return 1;;
+		"FF:FF:FF:FF:FF:FF") return 1;;
+		*) echo "${mac}";;
+	esac
+}
+
+iwconfig_get_mode()
+{
+	LC_ALL=C iwgetid --mode "${IFACE}" | \
+	sed -n -e 's/^.*Mode:\(.*\)/\1/p' | \
+	tr '[:upper:]' '[:lower:]'
+}
+
+iwconfig_set_mode()
+{
+	local mode="$1"
+	[ "${mode}" = "$(iwconfig_get_mode)" ] && return 0
+
+	# Devicescape stack requires the interface to be down
+	_down
+	iwconfig "${IFACE}" mode "${mode}" || return 1
+	_up
+}
+
+iwconfig_get_type()
+{
+	LC_ALL=C iwconfig "${IFACE}" | \
+	sed -n -e 's/^'"$1"' *\([^ ]* [^ ]*\).*/\1/p'
+}
+
+iwconfig_report()
+{
+	local mac= m="connected to"
+	local ssid="$(_get_ssid)"
+	local wep_status="$(iwconfig_get_wep_status)"
+	local channel="$(iwgetid --raw --channel "${iface}")"
+	[ -n "${channel}" ] && channel="on channel ${channel} "
+	local mode="$(iwconfig_get_mode)"
+	if [ "${mode}" = "master" ]; then
+		m="configured as"
+	else
+		mac="$(_get_ap_mac_address)"
+		[ -n "${mac}" ] && mac=" at ${mac}"
+	fi
+
+	eindent
+	einfo "${IFACE} ${m} SSID \"${SSID}\"${mac}"
+	einfo "in ${mode} mode ${channel}${wep_status}"
+	eoutdent
+}
+
+iwconfig_get_wep_key()
+{
+	local mac="$1" key=
+	[ -n "${mac}" ] && mac="$(echo "${mac}" | sed -e 's/://g')"
+	eval key=\$mac_key_${mac}
+	[ -z "${key}" ] && eval key=\$key_${SSIDVAR}
+	if [ -z "${key}" ]; then
+		echo "off"
+	else
+		set -- ${key}
+		local x= e=false
+		for x; do
+			if [ "${x}" = "enc" ]; then
+				e=true
+				break
+			fi
+		done
+		${e} || key="${key} enc open"
+		echo "${key}"
+	fi
+}
+
+iwconfig_user_config()
+{
+	local conf= var=${SSIDVAR} config=
+	[ -z "${var}" ] && var=${IFVAR}
+
+	config="$(_get_array "iwconfig_${var}")"
+	local IFS="$__IFS"
+	for conf in ${config}; do
+		unset IFS
+		if ! eval iwconfig "${IFACE}" "${conf}"; then
+			ewarn "${IFACE} does not support the following configuration commands"
+			ewarn "  ${conf}"
+		fi
+	done
+	unset IFS
+
+	config="$(_get_array "iwpriv_${var}")"
+	local IFS="$__IFS"
+	for conf in ${config}; do
+		unset IFS
+		if ! eval iwpriv "${IFACE}" "${conf}"; then
+			ewarn "${IFACE} does not support the following private ioctls"
+			ewarn "  ${conf}"
+		fi
+	done
+}
+
+iwconfig_setup_specific()
+{
+	local mode="$1" channel=
+	if [ -z "${SSID}" ]; then
+		eerror "${IFACE} requires an SSID to be set to operate in ${mode} mode"
+		eerror "adjust the ssid_${IFVAR} setting in /etc/conf.d/net"
+		return 1
+	fi
+	SSIDVAR=$(shell_var "${SSID}")
+	local key=$(iwconfig_get_wep_key)
+
+	iwconfig_set_mode "${mode}"
+	
+	# Now set the key
+	if ! eval iwconfig "${IFACE}" key "${key}"; then
+		if [ "${key}" != "off" ]; then
+			ewarn "${IFACE} does not support setting keys"
+			ewarn "or the parameter \"mac_key_${SSIDVAR}\" or \"key_${SSIDVAR}\" is incorrect"
+		fi
+	fi
+
+	# Then set the SSID
+	if ! iwconfig "${IFACE}" essid "${SSID}"; then
+		eerror "${IFACE} does not support setting SSID to \"${SSID}\""
+		return 1
+	fi
+
+	eval channel=\$channel_${SSIDVAR}
+	[ -z "${channel}" ] && eval channel=\$channel_${IFVAR}
+	# We default the channel to 3
+	if ! iwconfig "${IFACE}" channel "${channel:-3}"; then
+		ewarn "${IFACE} does not support setting the channel to \"${channel:-3}\""
+		return 1
+	fi
+	
+	# Finally apply the user Config
+	iwconfig_user_config
+	
+	iwconfig_report
+	return 0
+}
+
+iwconfig_wait_for_association()
+{
+	local timeout= i=0
+	eval timeout=\$associate_timeout_${IFVAR}
+	timeout=${timeout:-10}
+
+	[ ${timeout} -eq 0 ] \
+		&& vewarn "WARNING: infinite timeout set for association on ${IFACE}"
+
+	while true; do
+		# Use sysfs if we can
+		if [ -e /sys/class/net/"${IFACE}"/carrier ]; then
+			if [ "$(cat /sys/class/net/"${IFACE}"/carrier)" = "1" ]; then
+				# Double check we have an ssid. This is mainly for buggy
+				# prism54 drivers that always set their carrier on :/
+				[ -n "$(iwgetid --raw "${IFACE}")" ] && return 0
+			fi
+		else
+			local atest=
+			eval atest=\$associate_test_${IFVAR}
+			atest=${atest:-mac}
+			if [ "${atest}" = "mac" -o "${atest}" = "all" ]; then
+				[ -n "$(_get_ap_mac_address)" ] && return 0
+			fi
+			if [ "${atest}" = "quality" -o "${atest}" = "all" ]; then
+				[ "$(sed -n -e 's/^.*'"${IFACE}"': *[0-9]* *\([0-9]*\).*/\1/p' \
+					/proc/net/wireless)" != "0" ] && return 0
+			fi
+		fi
+		
+		sleep 1
+		[ ${timeout} -eq 0 ] && continue
+		i=$((${i} +  1))
+		[ ${i} -ge ${timeout} ] && return 1
+	done
+	return 1
+}
+
+iwconfig_associate()
+{
+	local mode="${1:-managed}" mac="$2" wep_required="$3"
+	local freq="$4" chan="$5"
+	local w="(WEP Disabled)" key=
+
+	iwconfig_set_mode "${mode}"
+
+	if [ "${SSID}" = "any" ]; then
+		iwconfig "${IFACE}" ap any 2>/dev/null
+		unset SSIDVAR
+	else
+		SSIDVAR=$(shell_var "${SSID}")
+		key="$(iwconfig_get_wep_key "${mac}")"
+		if [ "${wep_required}" = "on" -a "${key}" = "off" ]; then
+			ewarn "WEP key is not set for \"${SSID}\" - not connecting"
+			return 1
+		fi
+		if [ "${wep_required}" = "off" -a "${key}" != "off" ]; then
+			key="off"
+			ewarn "\"${SSID}\" is not WEP enabled - ignoring setting"
+		fi
+
+		if ! eval iwconfig "${IFACE}" key "${key}"; then
+			if [ "${key}" != "off" ]; then
+				ewarn "${IFACE} does not support setting keys"
+				ewarn "or the parameter \"mac_key_${SSIDVAR}\" or \"key_${SSIDVAR}\" is incorrect"
+				return 1
+			fi
+		fi
+		[ "${key}" != "off" ] && w="$(iwconfig_get_wep_status "${iface}")"
+	fi
+
+	if ! iwconfig "${IFACE}" essid "${SSID}"; then
+		if [ "${SSID}" != "any" ]; then
+			ewarn "${IFACE} does not support setting SSID to \"${SSID}\""
+		fi
+	fi
+
+	# Only use channel or frequency
+	if [ -n "${chan}" ]; then
+		iwconfig "${IFACE}" channel "${chan}"
+	elif [ -n "${freq}" ]; then
+		iwconfig "${IFACE}" freq "${freq}"
+	fi
+	[ -n "${mac}" ] && iwconfig "${IFACE}" ap "${mac}"
+	
+	# Finally apply the user Config
+	iwconfig_user_config
+
+	ebegin "Connecting to \"${SSID}\" in ${mode} mode ${w}"
+
+	if [ "${SSID}" != "any" ] && type preassociate >/dev/null 2>&1; then
+		veinfo "Running preassociate function"
+		veindent
+		( preassociate )
+		local e=$?
+		veoutdent
+		if [ ${e} -eq 0 ]; then
+			veend 1 "preassociate \"${SSID}\" on ${IFACE} failed"
+			return 1
+		fi
+	fi
+
+	if ! iwconfig_wait_for_association; then
+		eend 1
+		return 1
+	fi
+	eend 0
+
+	if [ "${SSID}"  = "any" ]; then
+		SSID="$(_get_ssid)"
+		iwconfig_associate
+		return $?
+	fi
+
+	iwconfig_report
+
+	if type postassociate >/dev/null 2>&1; then
+		veinfo "Running postassociate function"
+		veindent
+		( postassociate )
+		veoutdent
+	fi
+
+	return 0
+}
+
+iwconfig_scan()
+{
+	local x= i=0 scan=
+	einfo "Scanning for access points"
+	eindent
+
+	# Sleep if required
+	eval x=\$sleep_scan_${IFVAR}
+	[ -n "${x}" ] && sleep "${x}"
+
+	while [ ${i} -lt 3 ]; do
+	    local scan="${scan}${scan:+ }$(LC_ALL=C iwlist "${IFACE}" scan 2>/dev/null | sed -e "s/'/'\\\\''/g" -e "s/$/'/g" -e "s/^/'/g")"
+		# If this is the first pass and txpower as off and we have no
+		# results then we need to wait for at least 2 seconds whilst
+		# the interface does an initial scan.
+		if [ "${i}" = "0" -a "${txpowerwasoff}" = "0" ]; then
+			case "${scan}" in
+				"'${IFACE} "*"No scan results"*)
+					sleep 2
+					txpowerwasoff=1
+					continue
+					;;
+			esac
+		fi
+	    i=$((${i} + 1))
+	done
+
+	if [ -z "${scan}" ]; then
+		ewarn "${iface} does not support scanning"
+		eoutdent
+		eval x=\$adhoc_ssid_${IFVAR}
+		[ -n "${x}" ] && return 0
+		if [ -n "${preferred_aps}" ]; then
+			[ "${associate_order}" = "forcepreferred" ] || \
+			[ "${associate_order}" = "forcepreferredonly" ] && return 0
+		fi
+		eerror "You either need to set a preferred_aps list in /etc/conf.d/wireless"
+		eerror "   preferred_aps=\"SSID1 SSID2\""
+		eerror "   and set associate_order_${IFVAR}=\"forcepreferred\""
+		eerror "   or set associate_order_${IFVAR}=\"forcepreferredonly\""
+		eerror "or hardcode the  SSID to \"any\" and let the driver find an Access Point"
+		eerror "   ssid_${IFVAR}=\"any\""
+		eerror "or configure defaulting to Ad-Hoc when Managed fails"
+		eerror "   adhoc_ssid_${IFVAR}=\"WLAN\""
+		eerror "or hardcode the SSID against the interface (not recommended)"
+		eerror "   ssid_${IFVAR}=\"SSID\""
+		return 1
+	fi
+
+	APS=-1
+	eval set -- ${scan}
+	for line; do
+		case "${line}" in
+			*Address:*)
+				APS=$((${APS} + 1)) 
+				eval MAC_${APS}="\""$(echo "${line#*: }" | tr '[:lower:]' '[:upper:]')"\""
+				eval QUALITY_${APS}=0
+				;;	
+			*ESSID:*)
+				x=${line#*\"}
+				x=${x%*\"}
+				eval SSID_${APS}=\$x
+				;;
+			*Mode:*)
+				x="$(echo "${line#*:}" | tr '[:upper:]' '[:lower:]')"
+				if [ "${x}" = "master" ]; then
+					eval MODE_${APS}=managed
+				else
+					eval MODE_${APS}=\$x
+				fi
+				;;
+			*'Encryption key:'*)
+				x=${line#*:}
+				eval ENC_${APS}=\$x
+				;;
+			#*Frequency:*)
+			#		freq[i]="${line#*:}"
+			#		x="${freq[i]#* }"
+			#		freq[i]="${freq[i]%% *}${x:0:1}"
+			#		;;
+			*Channel:*)
+				x=${line#*:}
+				x=${x%% *}
+				eval CHAN_${APS}=\$x
+				;;
+			*Quality*)
+				x=${line#*:}
+				x=${x%/*}
+				x="$(echo "${x}" | sed -e 's/[^[:digit:]]//g')"
+				x=${x:-0}
+				eval QUALITY_${APS}=\$x
+				;;
+		esac
+	done
+
+	if [ -z "${MAC_0}" ]; then
+		ewarn "no access points found"
+		eoutdent
+		return 1
+	fi
+
+	# Sort based on quality
+	local i=0 k=1 a= b= x= t=
+	while [ ${i} -lt ${APS} ]; do
+	    k=$((${i} + 1))
+	    while [ ${k} -le ${APS} ]; do
+		eval a=\$QUALITY_${i}
+		[ -z "${a}" ] && break
+		eval b=\$QUALITY_${k}
+		if [ -n "${b}" -a "${a}" -lt "${b}" ]; then
+		    for x in MAC SSID CHAN QUALITY ENC; do
+			eval t=\$${x}_${i}
+			eval ${x}_${i}=\$${x}_${k}
+			eval ${x}_${k}=\$t
+		    done
+		fi
+		k=$((${k} + 1))
+	    done
+	    i=$((${i} + 1))
+	done
+
+	# Strip any duplicates
+	local i=0 k=1 a= b=
+	while [ ${i} -lt ${APS} ]; do
+		k=$((${i} + 1))
+		while [ ${k} -le ${APS} ]; do
+			eval a=\$MAC_${i}
+			eval b=\$MAC_${k}
+			if [ "${a}" = "${b}" ]; then
+				eval a=\$QUALITY_${i}
+				eval b=\$QUALITY_${k}
+				local u=${k}
+				# We need to split this into two tests, otherwise bash errors 
+				[ -n "${a}" -a -n "${b}" ] && [ "${a}" -lt "${b}" ] && u=${i}
+				unset MAC_${u} SSID_${u} CHAN_${u} QUALITY_${u} ENC_${u}
+			fi
+			k=$((${k} + 1))
+		done
+		i=$((${i} + 1))
+	done
+
+	local i=0 e= m= s=
+
+	while [ ${i} -le ${APS} ]; do
+		eval x=\$MAC_${i}
+		if [ -z "${x}" ]; then
+		    i=$((${i} + 1))
+		    continue
+		fi
+
+		eval m=\$MODE_${i}
+		eval s=\$SSID_${i}
+		eval q=\$QUALITY_${i}
+		eval e=\$ENC_${i}
+		if [ -n "${e}" -a "${e}" != "off" ]; then
+		    e=", encrypted"
+		else
+		    e=""
+		fi
+		if [ -z "${s}" ]; then
+			einfo "Found ${x}, ${m}${e}"
+		else
+			einfo "Found \"${s}\" at ${x}, ${m}${e}"
+		fi
+
+		x="$(echo "${x}" | sed -e 's/://g')"
+		eval x=\$mac_ssid_${x}
+		if [ -n "${x}" ]; then
+			eval SSID_${i}=\$x
+			s=${x}
+			eindent
+			einfo "mapping to \"${x}\""
+			eoutdent
+		fi
+
+		eval set -- $(_flatten_array "blacklist_aps_${IFVAR}")
+		[ $# = 0 ] && eval set -- $(_flatten_array "blacklist_aps")
+		for x; do
+			if [ "${x}" = "${s}" ]; then
+				ewarn "${s} has been blacklisted - not connecting"
+				unset SSID_${i} MAC_${i} CHAN_${i} QUALITY_${i} ENC_${i}
+			fi
+		done
+		i=$((${i} + 1))
+	done
+	eoutdent
+}
+
+iwconfig_force_preferred()
+{
+	eval set -- $(_flatten_array "preferred_aps_${IFVAR}")
+	[ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps")
+	[ $# = 0 ] && return 1
+
+	ewarn "Trying to force preferred in case they are hidden"
+	for ssid; do
+		local found_AP=false i=0 e=
+		while [ ${i} -le ${APS} ]; do
+			eval e=\$SSID_${i}
+			if [ "${e}" = "${ssid}" ]; then
+				found_AP=true
+				break
+			fi
+			i=$((${i} + 1))
+		done
+		if ! ${found_AP}; then
+			SSID=${e}
+			iwconfig_associate && return 0
+		fi
+	done
+
+	ewarn "Failed to associate with any preferred access points on ${IFACE}"
+	return 1
+}
+
+iwconfig_connect_preferred()
+{
+	local ssid= i= mode= mac= enc= freq= chan=
+	eval set -- $(_flatten_array "preferred_aps_${IFVAR}")
+	[ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps")
+
+	for ssid; do
+		unset IFS
+		i=0
+		while [ ${i} -le ${APS} ]; do
+			eval e=\$SSID_${i}
+			if [ "${e}" = "${ssid}" ]; then
+				SSID=${e}
+				eval mode=\$MODE_${i}
+				eval mac=\$MAC_${i}
+				eval enc=\$ENC_${i}
+				eval freq=\$FREQ_${i}
+				eval chan=\$CHAN_${i}
+				iwconfig_associate "${mode}" "${mac}" "${enc}" "${freq}" \
+					"${chan}" && return 0
+			fi
+			i=$((${i} + 1))
+		done
+	done
+
+	return 1
+}
+
+iwconfig_connect_not_preferred()
+{
+	local ssid= i=0 mode= mac= enc= freq= chan= pref=false
+
+	while [ ${i} -le ${APS} ]; do
+		eval e=\$SSID_${i}
+		if [ -n "${e}" ]; then
+			eval set -- $(_flatten_array "preferred_aps_${IFVAR}")
+			[ $# = 0 ] && eval set -- $(_flatten_array "preferred_aps")
+			for ssid; do
+				if [ "${e}" = "${ssid}" ]; then
+					pref=true
+					break
+				fi
+			done
+	
+			if ! ${pref}; then
+				SSID=${e}
+				eval mode=\$MODE_${i}
+				eval mac=\$MAC_${i}
+				eval enc=\$ENC_${i}
+				eval freq=\$FREQ_${i}
+				eval chan=\$CHAN_${i}
+				iwconfig_associate "${mode}" "${mac}" "${enc}" "${freq}" \
+					"${chan}" && return 0
+			fi
+		fi
+		i=$((${i} + 1))
+	done
+
+	return 1
+}
+
+iwconfig_defaults()
+{
+	local x=
+	for x in txpower rate rts frag; do
+	    iwconfig "${IFACE}" "${x}" auto 2>/dev/null
+	done
+
+	# Release the AP forced
+	# Must do ap and then ssid otherwise scanning borks
+	iwconfig "${IFACE}" ap off 2>/dev/null
+	iwconfig "${IFACE}" essid off 2>/dev/null
+}
+
+iwconfig_configure()
+{
+	local x= APS=
+	eval SSID=\$ssid_${IFVAR}
+
+	# Support old variable
+	[ -z "${SSID}" ] && eval SSID=\$essid_${IFVAR}
+
+	# Setup ad-hoc mode?
+	eval x=\$mode_${IFVAR}
+	x=${x:-managed}
+	if [ "${x}" = "ad-hoc" -o "${x}" = "master" ]; then
+		iwconfig_setup_specific "${x}"
+		return $?
+	fi
+
+	if [ "${x}" != "managed" -a "${x}" != "auto" ]; then
+		eerror "Only managed, ad-hoc, master and auto modes are supported"
+		return 1
+	fi
+
+	# Has an SSID been forced?
+	if [ -n "${SSID}" ]; then
+		iwconfig_set_mode "${x}"
+		iwconfig_associate && return 0
+		[ "${SSID}" = "any" ] && iwconfig_force_preferred && return 0
+
+		eval SSID=\$adhoc_ssid_${IFVAR}
+		if [ -n "${SSID}" ]; then
+			iwconfig_setup_specific ad-hoc
+			return $?
+		fi
+		return 1
+	fi
+
+	eval x=\$preferred_aps_${IFVAR}
+	[ -n "${x}" ] && preferred_aps=${x}
+
+	eval x=\$blacklist_aps_${IFVAR}
+	[ -n "${x}" ] && blacklist_aps=${x}
+
+	eval x=\$associate_order_${IFVAR}
+	[ -n "${x}" ] && associate_order=${x}
+	associate_order=${associate_order:-any}
+
+	if [ "${associate_order}" = "forcepreferredonly" ]; then
+		iwconfig_force_preferred && return 0
+	else
+		iwconfig_scan || return 1
+		iwconfig_connect_preferred && return 0
+		[ "${associate_order}" = "forcepreferred" ] || \
+		[ "${associate_order}" = "forceany" ] && \
+		iwconfig_force_preferred && return 0
+		[ "${associate_order}" = "any" ] || \
+		[ "${associate_order}" = "forceany" ] && \
+		iwconfig_connect_not_preferred && return 0
+	fi
+
+	e="associate with"
+	[ -z "${MAC_0}" ] && e="find"
+	[ "${preferred_aps}" = "force" ] || \
+	[ "${preferred_aps}" = "forceonly" ] && \
+	e="force"
+	e="Couldn't ${e} any access points on ${IFACE}"
+
+	eval SSID=\$adhoc_ssid_${IFVAR}
+	if [ -n "${SSID}" ]; then
+		ewarn "${e}"
+		iwconfig_setup_specific ad-hoc
+		return $?
+	fi
+
+	eerror "${e}"
+	return 1
+}
+
+iwconfig_pre_start()
+{
+	# We don't configure wireless if we're being called from
+	# the background
+	yesno ${IN_BACKGROUND} && return 0
+
+	service_set_value "SSID" ""
+	_exists || return 0
+
+	if ! _is_wireless; then
+		veinfo "Wireless extensions not found for ${IFACE}"
+		return 0
+	fi
+
+	# Warn about old file - we want to punt it really
+	if [ -e /etc/conf.d/wireless ]; then
+		ewarn "/etc/conf.d/wireless is deprecated"
+		ewarn "Please put all settings into /etc/conf.d/net"
+		. /etc/conf.d/wireless
+	fi
+
+	# Store the fact that tx-power was off so we default to a longer
+	# wait if our scan returns nothing
+	LC_ALL=C iwconfig "${IFACE}" | sed -e '1d' | grep -q "Tx-Power=off"
+	local txpowerwasoff=$?
+	
+	iwconfig_defaults
+	iwconfig_user_config
+	
+	# Set the base metric to be 2000
+	metric=2000
+
+	# Check for rf_kill - only ipw supports this at present, but other
+	# cards may in the future.
+	if [ -e /sys/class/net/"${IFACE}"/device/rf_kill ]; then
+		if [ $(cat /sys/class/net/"${IFACE}"/device/rf_kill) != "0" ]; then
+			eerror "Wireless radio has been killed for interface ${IFACE}"
+			return 1
+		fi
+	fi
+
+	einfo "Configuring wireless network for ${IFACE}"
+
+	# Are we a proper IEEE device?
+	# Most devices reutrn IEEE 802.11b/g - but intel cards return IEEE
+	# in lower case and RA cards return RAPCI or similar
+	# which really sucks :(
+	# For the time being, we will test prism54 not loading firmware
+	# which reports NOT READY!
+	x="$(iwconfig_get_type)"
+	if [ "${x}" = "NOT READY!" ]; then
+		eerror "Looks like there was a probem loading the firmware for ${IFACE}"
+		return 1
+	fi
+
+	if iwconfig_configure; then
+		service_set_value "SSID" "${SSID}"
+		return 0
+	fi
+
+	eerror "Failed to configure wireless for ${IFACE}"
+	iwconfig_defaults
+	iwconfig "${IFACE}" txpower off 2>/dev/null
+	unset SSID SSIDVAR
+	_down
+	return 1
+}
+
+iwconfig_post_stop()
+{
+	yesno ${IN_BACKGROUND} && return 0
+	_exists || return 0
+	iwconfig_defaults
+	iwconfig "${IFACE}" txpower off 2>/dev/null
+}