[projects/rc-scripts.git] / sysconfig / network-scripts / functions.network

#!/bin/sh - keep it for file(1) to get bourne shell script result
#
# $Id$
#
# This is not a shell script; it provides functions to network scripts
# that source it.

source_config ()
{
	local foundconfig=0

	DEVNAME=${CONFIG##*/}
	DEVNAME=${DEVNAME##ifcfg-}
	DEVNAME=${DEVNAME##tnlcfg-}

	if [[ "$CONFIG" = /* ]]; then
		if [ -f "$CONFIG" ]; then
			. "$CONFIG"
			foundconfig=1
		fi
	elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ]; then
		. "/etc/sysconfig/interfaces/$CONFIG"
		foundconfig=1
	fi

	# This is sanity check so that if you've copied ifcfg-eth0 to ifcfg-eth1
	# and forgot to alter DEVICE= line you won't accidentally bring down eth0
	# while executing ifdown eth1. We do that only if configuration file exists
	# (sometimes ifcfg-xyz isn't needed at all like server-side pppoe pppX interfaces)
	if [ "$foundconfig" -eq "1" -a "$DEVICE" -a "$DEVNAME" != "$DEVICE" ]; then
		echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!"
		exit 1
	fi

	if [ "${PREFIX}" ] && [[ "$IPADDR" != */* ]]; then
		IPADDR="$IPADDR/$PREFIX"
	fi
}

do_netreport ()
{
	# Notify programs that have requested notification
	( cd /var/run/netreport || exit
	for i in *; do
		[ -f $i ] && kill -SIGIO $i >/dev/null 2>&1 || \
			rm -f $i >/dev/null 2>&1
	done
	)
}

need_hostname()
{
	local hostname=$(hostname)
	if [ "$hostname" = "(none)" -o "$hostname" = "localhost" -o "$hostname" = "localhost.localdomain" ]; then
		NEEDHOSTNAME=yes
	else
		unset NEEDHOSTNAME
	fi
}

set_hostname()
{
	local hostname domain

	hostname=$(echo $1 | awk ' { gsub(/\..*$/,NIL); print $0; } ')
	domain=$(echo $1 | awk ' { sub(/^[^\.]*\./,NIL); print $0; } ')

	if [ "$hostname" ]; then
		echo "$hostname" > /etc/HOSTNAME
		hostname $hostname
	fi

	if [ "$domain" ]; then
		# XXX umask and possible /etc/resolv.conf symlink breakage
		> /etc/resolv.conf.new
		if ! grep -q "search $domain" /etc/resolv.conf; then
			echo "search $domain" >> /etc/resolv.conf.new
		fi
		echo "domain $domain" >> /etc/resolv.conf.new
		grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new
		mv -f /etc/resolv.conf.new /etc/resolv.conf
	fi
}

set_dhcpclient()
{
	if [ "$BOOTPROTO" = "bootp" -o "$BOOTPROTO" = "pump" ]; then
		DHCP_CLIENT=/sbin/pump
	fi

	if [ -z "$DHCP_CLIENT" ]; then
		if [ -x /sbin/dhcpcd ]; then
			DHCP_CLIENT=/sbin/dhcpcd
		elif [ -x /sbin/dhclient ]; then
			DHCP_CLIENT=/sbin/dhclient
		elif [ -x /sbin/dhcpxd ]; then
			DHCP_CLIENT=/sbin/dhcpxd
		elif [ -x /sbin/pump ]; then
			DHCP_CLIENT=/sbin/pump
		else
			nls "Can't find a DHCP client."
			exit 1
		fi
	fi
}

# Setup Network Address Translation (NAT)
setup_nat()
{
	local src via dst

	if [ -r /etc/sysconfig/static-nat ]; then
		if [ "$1" = "on" ]; then
			grep "^[0-9]" /etc/sysconfig/static-nat | while read src via dst; do
				/sbin/ip route add nat $dst via $src
				/sbin/ip rule add from $src nat $dst
			done
		elif [ "$1" = "off" ]; then
			LC_ALL=C /sbin/ip route show table all | grep -E "^nat[[:blank:]]" | while read nat dst via src args; do
				/sbin/ip rule del from $src nat $dst
				/sbin/ip route del nat $dst via $src
			done
		fi
	fi
}

# Setup static ARP
static_arp()
{
	local rc arpdev host hwaddr flags neflags

	if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then
		if [ -x /sbin/arp ]; then
			run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers
		else
			show "Setting static ARP entries"; busy
			rc=0
			arpdev=$(ip link show | awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }')
			if [ -z "$arpdev" ]; then
				rc=1
			else
				# ip supports only ip addresses
				grep "^[0-9]" /etc/ethers | \
				while read host hwaddr flags; do
					case "$flags" in
					  *temp*)
						neflags="nud stale"
						;;
					  *)
						neflags="nud permanent"
						;;
					esac
					if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then
						rc=1
					fi
				done
			fi
			if [ "$rc" -gt 0 ]; then
				fail
			fi
		fi
	fi
}

static_rarp()
{
	if is_yes "$STATIC_RARP"; then
		if [ ! -e /proc/net/rarp ]; then
			_modprobe single rarp
		fi
		if [ -r /etc/ethers -a -x /sbin/rarp ]; then
			run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
		fi
	fi
}

# Set up all IP && IP parameter variables
setup_ip_param ()
{
	# detect network device type (ie. dummy, eth for dummy0, eth0 ..)
	if [ -z "$DEVICETYPE" ]; then
		DEVICETYPE=$(echo $DEVICE | awk ' { gsub(/[\.:]?[0-9]*[\.:]?[0-9]*$/,NUL); print $0 } ')
	fi

	# Setup DEVICETYPE for special cases.
	if echo ${DEVICE} | LC_ALL=C grep -qE '^[a-z0-9]+\.[0-9]+$'; then
		DEVICETYPE=vlan
	fi

	# real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
	SUBDEVICE=$(echo "$DEVICE" | grep -E "([0-9]+:[0-9]+)")
	DEVICE=$(echo $DEVICE | awk ' { gsub(/:.*$/,NUL); print $0 } ')

	eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
	# check if ipaddr doesn't contain network length -- use $NETMASK then
	if [[ "$IP4ADDR" != */* ]] && [ "$NETMASK" ]; then
		IP4ADDR=$IP4ADDR/$(calcprefix $NETMASK)
	fi

	# check if we have ipv6 or ipv4 address
	if [[ "${IP4ADDR}" = *:* ]]; then
		IP6ADDR=${IP4ADDR}
		IP4ADDR=""
	else
		eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
		eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
	fi
	if [ "${IP6_PRIM_IF}" ]; then
		eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
		eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
		eval IP6ADDRLABEL="\$IP_LABEL${IP6_PRIM_IF:-}"
	fi
	if [ "${IP4_SRC_IF}" ]; then
		eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
		IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	fi

	# new rc-scripts 0.4.x option
	if [ -z "$HANDLING" ]; then
		HANDLING=0
	fi

	# set handling for bridge
	case "$DEVICETYPE" in
	  br|atm|lec|irda|vlan)
		HANDLING=1
		;;
	esac

	# Multicast ready devices
	if is_yes "$MULTICAST"; then
		MULTICAST="on"
	else
		case "$DEVICETYPE" in
		  eth|br)
			MULTICAST="on"
			;;
		  *)
			MULTICAST="off"
			;;
		esac
	fi

	# ARP ready devices
	if [ "$ARP" ]; then
		if is_yes "$ARP"; then
			ARP="arp on"
		else
			ARP="arp off"
		fi
	fi
}

check_device_down ()
{
	if LC_ALL=C ip link show dev ${DEVICE} 2> /dev/null | grep -q UP; then
		return 1
	else
		return 0
	fi
}

setup_ip_gw_ro ()
{
	# IPv4 gateway
	if is_yes "$IPV4_NETWORKING"; then
		if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
			# set up default gateway
			if [ "${GATEWAY}" ]; then
				ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
				if [ $? = 0 ]; then
					DEFGW=${GATEWAY}
				else
					# The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
					# To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
					nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
				fi
			elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
				ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
			fi
		fi
	fi

	# IPv6 gateway && IPv6 globalroute
	if is_yes "$IPV6_NETWORKING"; then
		if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
			# set up default gateway
			if [ "${GATEWAY6}" ]; then
				ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
				DEFGW6=${GATEWAY6}
			elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
				ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
			fi
		fi
		if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
			# set up default route
			if [ "${IPV6_GLOBALROUTEGW}" ]; then
				ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
			elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
				ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
			fi
		fi
	fi
}

#
# following function sets up routes not associated to any device
# eg. unreachable or blackhole routes
# (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
#
setup_routes()
{
	local args

	if [ -f /etc/sysconfig/static-routes ]; then
		if [ "$1" = "on" -o "$1" = "yes" ]; then
			grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
				/sbin/ip route add $args
			done
		else
			grep -E "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
				/sbin/ip route del $args 2>/dev/null
			done
		fi
	fi
}

# Add ONLY IPv4 address (IPv6 address is added automaticly)
set_up_loopback()
{
	if is_yes "$IPV4_NETWORKING"; then
		ip addr add 127.0.0.1/8 dev lo
	fi
	ip link set dev lo up
}

set_down_loopback()
{
	LC_ALL=C ip addr flush dev lo 2>&1 | grep -v "Nothing to flush"
	ip link set dev lo down
}

modprobe_net()
{
	if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
		_modprobe single ipv6
	fi

	if is_yes "$IPX" && is_module "ipx"; then
		_modprobe single ipx
	fi
}

# calculate network prefix from given network mask
calcprefix()
{
	local old_IFS netmask prefix endp

	old_IFS=$IFS
	IFS='.'
	netmask=$(echo $1)
	IFS=$old_IFS

	prefix=0
	endp=0
	for n in $netmask; do
		for i in 128 64 32 16 8 4 2 1; do
			if [ $(($n & $i)) -ne 0 ]; then
				if [ $endp -eq 0 ]; then
					prefix=$(($prefix + 1))
				else
					echo "32"
					return
				fi
			else
				endp=1
			fi
		done
	done
	echo $prefix
}

# calculate network mask from given prefix
# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
calcnetmask()
{
	local prefix a MASK

	MASK=""
	if [ "${1##[0-9]*}" ]; then
		prefix=32
	else
		prefix=$1
	fi
	for i in 1 2 3 4; do
		case $prefix in
		  7)	a=254;;
		  6)	a=252;;
		  5)	a=248;;
		  4)	a=240;;
		  3)	a=224;;
		  2)	a=192;;
		  1)	a=128;;
		  *)
			[ $prefix -ge 8 ] && a=255
			[ $prefix -le 0 ] && a=0
			;;
		esac

		prefix="$(( $prefix - 8))"
		if [ -z "$MASK" ]; then
			MASK=$a
		else
			MASK=$MASK.$a
		fi
	done

	echo $MASK
	return
}

# Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
get_ppp_device_and_pid ()
{
	if [ -f "/var/run/ppp-$DEVNAME.pid" ]; then
		eval $(
		{
			read PID; echo "PID='$PID'"
			read REALDEVICE; echo "REALDEVICE=$REALDEVICE"
		} < "/var/run/ppp-$DEVNAME.pid")
	fi

	if [ -z "$REALDEVICE" ]; then
		REALDEVICE=$DEVICE
	fi
}

# following function setups advanced routing rules
# Olgierd Pieczul <wojrus@pld-linux.org>
setup_ip_rules ()
{
	local args prio from src

	if [ -f /etc/sysconfig/static-routes ]; then
		if is_yes "$1"; then
			grep -E "^(from|to|iif|tos|fwmark|dev|pref|priority|prio)[[:blank:]]" /etc/sysconfig/static-routes | while read args; do
				/sbin/ip rule add $args
			done
		elif is_no "$1"; then
			LC_ALL=C /sbin/ip rule show | grep -vE -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do
				[ "$src" = "all" ] && ip rule delete $args || ip rule delete $from $src $args
			done
		fi
	fi
}

is_wireless_device ()
{
	if [ -x /sbin/iwconfig ]; then
		LC_ALL=C iwconfig "${1}" 2>&1 | grep -q "no wireless extensions" || return 0
	fi
	return 1
}

wireless_param()
{
	device="$1"
	if [ "$2" = "br" ]; then
		prefix="${device}_"
	else
		prefix=""
	fi

	local val wlan_mode

	# wlan mode needs to be first
	wlan_mode="$(eval echo \$${prefix}WLAN_MODE)" && [ "$wlan_mode" ] && \
		iwconfig ${device} mode "$wlan_mode"

	val="$(eval echo \$${prefix}WLAN_NICKNAME)" && [ "$val" ] && \
		iwconfig ${device} nick "$val"

	val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
		iwconfig ${device} nwid "$val"

	if [ "$wlan_mode" != "Managed" -a "$wlan_mode" != "managed" ]; then
		if val="$(eval echo \$${prefix}WLAN_FREQ)" && [ "$val" ]; then
			iwconfig ${device} freq "$val"
		elif val="$(eval echo \$${prefix}WLAN_CHANNEL)" && [ "$val" ]; then
			iwconfig ${device} channel "$val"
		fi
	fi

	val="$(eval echo \$${prefix}WLAN_SENS)" && [ "$val" ] && \
		iwconfig ${device} sens "$val"
	val="$(eval echo \$${prefix}WLAN_AP)" && [ "$val" ] && \
		iwconfig ${device} ap "$val"
	val="$(eval echo \$${prefix}WLAN_BITRATE)" && [ "$val" ] && \
		iwconfig ${device} rate "$val"
	val="$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" && [ "$val" ] && \
		iwconfig ${device} rts "$val"
	val="$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" && [ "$val" ] && \
		iwconfig ${device} frag "$val"

	local wlan_encryption="$(eval echo \$${prefix}WLAN_ENCRYPTION)"
	local wlan_key="$(eval echo \$${prefix}WLAN_KEY)"
	# TODO: well, actually shouldn't set WLAN_KEY if other keys than current are set
	if [ "$wlan_key" ]; then
		# wlan key can contain index of key to set
		# to set other than current keys suffix with 1-4:
		local idx
		for idx in 1 2 3 4; do
			val="$(eval echo \$${prefix}WLAN_KEY_$idx)"
			[ "$val" ] || continue
			iwconfig ${device} key "[$idx]" "$val"
		done
		if val="$(eval echo \$${prefix}WLAN_KEY_CURRENT)" && [ "$val" ]; then
			iwconfig ${device} key "[$val]"
		else
			iwconfig ${device} key "$wlan_key"
		fi

		[ "$wlan_encryption" ] && iwconfig ${device} key "$wlan_encryption"
	fi

	if is_no "$wlan_encryption"; then
		iwconfig ${device} key off
	fi
	val="$(eval echo \$${prefix}WLAN_POWER)" && [ "$val" ] && \
		iwconfig ${device} power "$val"
	val="$(eval echo \$${prefix}WLAN_TXPOWER)" && [ "$val" ] && \
		iwconfig ${device} txpower "$val"
	val="$(eval echo \$${prefix}WLAN_RETRY)" && [ "$val" ] && \
		iwconfig ${device} retry "$val"

	# essid should be last due to network rescanning by wlan devices
	val="$(eval echo \$${prefix}WLAN_ESSID)" && [ "$val" ] && \
		iwconfig ${device} essid "$val"

	if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
		iwconfig ${device} commit
	fi
}

# returns
# 0 - no link
# 1 - link ok
# 2 - unsupported, unknown return
check_mii_tool ()
{
	[ -x /sbin/mii-tool ] || return 2
	local output=$(LC_ALL=C mii-tool $1 2>&1)
	echo $output | grep -q "link ok" && return 1
	echo $output | grep -q "no link" && return 0
	return 2
}

# returns
# 0 - link off
# 1 - link on
# 2 - unsupported, unknown return
check_ethtool ()
{
	[ -x /sbin/ethtool ] || return 2
	local output=$(LC_ALL=C ethtool $1 2>&1)
	echo $output | grep -q "Link detected: yes" && return 1
	echo $output | grep -q "Link detected: no" && return 0
	return 2
}

# returns
# 0 - radio off
# 1 - radio on
# 2 - unsupported
check_iwconfig ()
{
	local output
	# rfkill state (are there devices with multiple rfkill buttons?)
	output=$(cat /sys/class/net/${1}/device/rfkill*/state 2> /dev/null)
	# 1 is rfkill not active
	[ "$output" = "1" ] && return 1
	[ "$output" = "0" -o "$output" = "2" ] && return 0
	[ -x /sbin/iwconfig ] || return 2
	output=$(LC_ALL=C iwconfig "$1" 2>&1)
	# "radio off" is ipwxxx only "feature" (and there is no "radio on")
	echo "$output" | grep -q "radio off" && return 0
	# XXX: need more generic checks for wifi
	return 2
}

# returns
# 0 - link down
# 1 - link up
# 2 - unknown/unsupported
check_link_down ()
{
	if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
		if ! LC_ALL=C ip link show dev $1 2>/dev/null| grep -q UP; then
			ip link set dev $1 up >/dev/null 2>&1
			timeout=0
			while [ $timeout -le 6 ]; do
				check_ethtool $1
				e=$?
				check_iwconfig $1
				i=$?
				# trust ethtool and iwconfig
				if [ $i -eq 1 ] || [ $e -eq 1 ]; then
					return 1
				fi
				# use mii check only if all other check are unsupported
				# (mii check lies too often)
				check_mii_tool $1
				m=$?
				if [ $m -eq 1 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then
					return 1
				fi
				usleep 500000
				timeout=$((timeout+1))
			done
			# do not abort dhclient if all the checks are unsupported
			if [ $m -eq 2 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then
				return 2
			fi
			return 0
		fi
	fi
	return 2
}
Commit	Line	Data
356d834b	1	#!/bin/sh - keep it for file(1) to get bourne shell script result
b0443108	2	#
ec8b15cb	3	# $Id$
5e6dfc29	4	#
7e04fe0e	5	# This is not a shell script; it provides functions to network scripts
	6	# that source it.
	7
	8	source_config ()
	9	{
944d6d80	10	local foundconfig=0
d30d98d4	11
01e7134e ER	12	DEVNAME=${CONFIG##*/}
	13	DEVNAME=${DEVNAME##ifcfg-}
	14	DEVNAME=${DEVNAME##tnlcfg-}
5e6dfc29	15
1377630a	16	if [[ "$CONFIG" = /* ]]; then
d36ee0fb	17	if [ -f "$CONFIG" ]; then
5e6dfc29	18	. "$CONFIG"
d30d98d4	19	foundconfig=1
5e6dfc29	20	fi
d36ee0fb	21	elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ]; then
5e6dfc29	22	. "/etc/sysconfig/interfaces/$CONFIG"
d30d98d4	23	foundconfig=1
5e6dfc29	24	fi
d100991e ER	25
	26	# This is sanity check so that if you've copied ifcfg-eth0 to ifcfg-eth1
	27	# and forgot to alter DEVICE= line you won't accidentally bring down eth0
d30d98d4 AM	28	# while executing ifdown eth1. We do that only if configuration file exists
d30d98d4 AM	29	# (sometimes ifcfg-xyz isn't needed at all like server-side pppoe pppX interfaces)
8413b103	30	if [ "$foundconfig" -eq "1" -a "$DEVICE" -a "$DEVNAME" != "$DEVICE" ]; then
d100991e ER	31	echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!"
	32	exit 1
	33	fi
	34
8d92f4e5	35	if [ "${PREFIX}" ] && [[ "$IPADDR" != / ]]; then
5e6dfc29 JR	36	IPADDR="$IPADDR/$PREFIX"
5e6dfc29 JR	37	fi
7e04fe0e	38	}
	39
	40	do_netreport ()
	41	{
5e6dfc29 JR	42	# Notify programs that have requested notification
5e6dfc29 JR	43	( cd /var/run/netreport \|\| exit
ac2433c4	44	for i in *; do
5e6dfc29 JR	45	[ -f $i ] && kill -SIGIO $i >/dev/null 2>&1 \|\| \
	46	rm -f $i >/dev/null 2>&1
	47	done
	48	)
7e04fe0e	49	}
	50
	51	need_hostname()
	52	{
5411f833	53	local hostname=$(hostname)
ac2433c4	54	if [ "$hostname" = "(none)" -o "$hostname" = "localhost" -o "$hostname" = "localhost.localdomain" ]; then
5e6dfc29 JR	55	NEEDHOSTNAME=yes
	56	else
	57	unset NEEDHOSTNAME
	58	fi
7e04fe0e	59	}
	60
	61	set_hostname()
	62	{
944d6d80	63	local hostname domain
5e6dfc29 JR	64
	65	hostname=$(echo $1 \| awk ' { gsub(/\..*$/,NIL); print $0; } ')
	66	domain=$(echo $1 \| awk ' { sub(/^[^\.]*\./,NIL); print $0; } ')
	67
8d92f4e5	68	if [ "$hostname" ]; then
5e6dfc29 JR	69	echo "$hostname" > /etc/HOSTNAME
	70	hostname $hostname
	71	fi
	72
8d92f4e5	73	if [ "$domain" ]; then
ac2433c4 ER	74	# XXX umask and possible /etc/resolv.conf symlink breakage
ac2433c4 ER	75	> /etc/resolv.conf.new
5937edff	76	if ! grep -q "search $domain" /etc/resolv.conf; then
5e6dfc29 JR	77	echo "search $domain" >> /etc/resolv.conf.new
	78	fi
	79	echo "domain $domain" >> /etc/resolv.conf.new
	80	grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new
	81	mv -f /etc/resolv.conf.new /etc/resolv.conf
	82	fi
7e04fe0e	83	}
7e04fe0e	84
f1dba8bc ER	85	set_dhcpclient()
	86	{
	87	if [ "$BOOTPROTO" = "bootp" -o "$BOOTPROTO" = "pump" ]; then
	88	DHCP_CLIENT=/sbin/pump
	89	fi
	90
	91	if [ -z "$DHCP_CLIENT" ]; then
	92	if [ -x /sbin/dhcpcd ]; then
	93	DHCP_CLIENT=/sbin/dhcpcd
	94	elif [ -x /sbin/dhclient ]; then
	95	DHCP_CLIENT=/sbin/dhclient
	96	elif [ -x /sbin/dhcpxd ]; then
	97	DHCP_CLIENT=/sbin/dhcpxd
	98	elif [ -x /sbin/pump ]; then
	99	DHCP_CLIENT=/sbin/pump
	100	else
ac7078fd	101	nls "Can't find a DHCP client."
f1dba8bc ER	102	exit 1
	103	fi
	104	fi
	105	}
	106
767c8707 AM	107	# Setup Network Address Translation (NAT)
	108	setup_nat()
	109	{
944d6d80	110	local src via dst
5e6dfc29 JR	111
	112	if [ -r /etc/sysconfig/static-nat ]; then
	113	if [ "$1" = "on" ]; then
	114	grep "^[0-9]" /etc/sysconfig/static-nat \| while read src via dst; do
	115	/sbin/ip route add nat $dst via $src
	116	/sbin/ip rule add from $src nat $dst
	117	done
	118	elif [ "$1" = "off" ]; then
a51d5138	119	LC_ALL=C /sbin/ip route show table all \| grep -E "^nat[[:blank:]]" \| while read nat dst via src args; do
5e6dfc29 JR	120	/sbin/ip rule del from $src nat $dst
	121	/sbin/ip route del nat $dst via $src
	122	done
	123	fi
	124	fi
767c8707 AM	125	}
767c8707 AM	126
fa8aca70 JR	127	# Setup static ARP
fa8aca70 JR	128	static_arp()
7e04fe0e	129	{
944d6d80	130	local rc arpdev host hwaddr flags neflags
5e6dfc29 JR	131
	132	if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then
	133	if [ -x /sbin/arp ]; then
	134	run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers
	135	else
	136	show "Setting static ARP entries"; busy
	137	rc=0
	138	arpdev=$(ip link show \| awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }')
	139	if [ -z "$arpdev" ]; then
	140	rc=1
	141	else
	142	# ip supports only ip addresses
	143	grep "^[0-9]" /etc/ethers \| \
	144	while read host hwaddr flags; do
	145	case "$flags" in
	146	temp)
	147	neflags="nud stale"
	148	;;
	149	*)
	150	neflags="nud permanent"
	151	;;
	152	esac
	153	if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then
	154	rc=1
	155	fi
	156	done
	157	fi
	158	if [ "$rc" -gt 0 ]; then
	159	fail
	160	fi
0a6161f2	161	fi
74a7f2e4	162	fi
7e04fe0e	163	}
7e04fe0e	164
fa8aca70	165	static_rarp()
7e04fe0e	166	{
5e6dfc29 JR	167	if is_yes "$STATIC_RARP"; then
5e6dfc29 JR	168	if [ ! -e /proc/net/rarp ]; then
170103c8	169	_modprobe single rarp
5e6dfc29 JR	170	fi
	171	if [ -r /etc/ethers -a -x /sbin/rarp ]; then
	172	run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
	173	fi
	174	fi
e9e86175 AM	175	}
e9e86175 AM	176
fa8aca70 JR	177	# Set up all IP && IP parameter variables
fa8aca70 JR	178	setup_ip_param ()
38198f50	179	{
5e6dfc29 JR	180	# detect network device type (ie. dummy, eth for dummy0, eth0 ..)
5e6dfc29 JR	181	if [ -z "$DEVICETYPE" ]; then
14a0605b	182	DEVICETYPE=$(echo $DEVICE \| awk ' { gsub(/[\.:]?[0-9][\.:]?[0-9]$/,NUL); print $0 } ')
5e6dfc29 JR	183	fi
	184
	185	# Setup DEVICETYPE for special cases.
a51d5138	186	if echo ${DEVICE} \| LC_ALL=C grep -qE '^[a-z0-9]+\.[0-9]+$'; then
5e6dfc29 JR	187	DEVICETYPE=vlan
	188	fi
	189
	190	# real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
a51d5138	191	SUBDEVICE=$(echo "$DEVICE" \| grep -E "([0-9]+:[0-9]+)")
5e6dfc29 JR	192	DEVICE=$(echo $DEVICE \| awk ' { gsub(/:.*$/,NUL); print $0 } ')
	193
	194	eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
19196eca ER	195	# check if ipaddr doesn't contain network length -- use $NETMASK then
	196	if [[ "$IP4ADDR" != / ]] && [ "$NETMASK" ]; then
	197	IP4ADDR=$IP4ADDR/$(calcprefix $NETMASK)
	198	fi
	199
	200	# check if we have ipv6 or ipv4 address
	201	if [[ "${IP4ADDR}" = : ]]; then
5e6dfc29 JR	202	IP6ADDR=${IP4ADDR}
	203	IP4ADDR=""
	204	else
	205	eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
	206	eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
	207	fi
d36ee0fb	208	if [ "${IP6_PRIM_IF}" ]; then
5e6dfc29 JR	209	eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
5e6dfc29 JR	210	eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
440a9ecf	211	eval IP6ADDRLABEL="\$IP_LABEL${IP6_PRIM_IF:-}"
5e6dfc29	212	fi
d36ee0fb	213	if [ "${IP4_SRC_IF}" ]; then
5e6dfc29 JR	214	eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
	215	IP4SRCADDR=$(echo ${IP4SRCADDR} \| awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	216	fi
5e6dfc29 JR	217
	218	# new rc-scripts 0.4.x option
	219	if [ -z "$HANDLING" ]; then
	220	HANDLING=0
	221	fi
	222
	223	# set handling for bridge
	224	case "$DEVICETYPE" in
	225	br\|atm\|lec\|irda\|vlan)
	226	HANDLING=1
	227	;;
	228	esac
74a7f2e4	229
5e6dfc29 JR	230	# Multicast ready devices
	231	if is_yes "$MULTICAST"; then
	232	MULTICAST="on"
	233	else
	234	case "$DEVICETYPE" in
	235	eth\|br)
	236	MULTICAST="on"
	237	;;
	238	*)
	239	MULTICAST="off"
	240	;;
	241	esac
	242	fi
	243
	244	# ARP ready devices
d36ee0fb	245	if [ "$ARP" ]; then
5e6dfc29 JR	246	if is_yes "$ARP"; then
	247	ARP="arp on"
	248	else
	249	ARP="arp off"
	250	fi
	251	fi
38198f50 AM	252	}
38198f50 AM	253
fa8aca70	254	check_device_down ()
38198f50	255	{
ac7078fd	256	if LC_ALL=C ip link show dev ${DEVICE} 2> /dev/null \| grep -q UP; then
5e6dfc29 JR	257	return 1
	258	else
	259	return 0
	260	fi
38198f50 AM	261	}
38198f50 AM	262
5e6dfc29	263	setup_ip_gw_ro ()
38198f50	264	{
5e6dfc29 JR	265	# IPv4 gateway
	266	if is_yes "$IPV4_NETWORKING"; then
	267	if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
	268	# set up default gateway
8d92f4e5	269	if [ "${GATEWAY}" ]; then
b6fb522d ER	270	ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
	271	if [ $? = 0 ]; then
	272	DEFGW=${GATEWAY}
	273	else
	274	# The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
	275	# To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
	276	nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
	277	fi
5e6dfc29 JR	278	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
	279	ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
	280	fi
	281	fi
	282	fi
	283
	284	# IPv6 gateway && IPv6 globalroute
	285	if is_yes "$IPV6_NETWORKING"; then
	286	if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	287	# set up default gateway
8d92f4e5	288	if [ "${GATEWAY6}" ]; then
5e6dfc29 JR	289	ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
	290	DEFGW6=${GATEWAY6}
	291	elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	292	ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
	293	fi
	294	fi
	295	if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	296	# set up default route
8d92f4e5	297	if [ "${IPV6_GLOBALROUTEGW}" ]; then
5e6dfc29 JR	298	ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
	299	elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	300	ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
	301	fi
	302	fi
	303	fi
0a6161f2	304	}
0a6161f2	305
fa8aca70 JR	306	#
	307	# following function sets up routes not associated to any device
	308	# eg. unreachable or blackhole routes
ec8b15cb	309	# (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
fa8aca70 JR	310	#
fa8aca70 JR	311	setup_routes()
0a6161f2	312	{
944d6d80	313	local args
5e6dfc29 JR	314
5e6dfc29 JR	315	if [ -f /etc/sysconfig/static-routes ]; then
d36ee0fb	316	if [ "$1" = "on" -o "$1" = "yes" ]; then
a51d5138	317	grep -E "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
5e6dfc29 JR	318	/sbin/ip route add $args
	319	done
	320	else
a51d5138	321	grep -E "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
5e6dfc29 JR	322	/sbin/ip route del $args 2>/dev/null
	323	done
	324	fi
	325	fi
0a6161f2	326	}
38198f50	327
fa8aca70 JR	328	# Add ONLY IPv4 address (IPv6 address is added automaticly)
fa8aca70 JR	329	set_up_loopback()
0a6161f2	330	{
5e6dfc29 JR	331	if is_yes "$IPV4_NETWORKING"; then
	332	ip addr add 127.0.0.1/8 dev lo
	333	fi
	334	ip link set dev lo up
fa8aca70 JR	335	}
	336
	337	set_down_loopback()
	338	{
ac7078fd	339	LC_ALL=C ip addr flush dev lo 2>&1 \| grep -v "Nothing to flush"
5e6dfc29	340	ip link set dev lo down
0a6161f2	341	}
	342
	343	modprobe_net()
	344	{
5e6dfc29	345	if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
170103c8	346	_modprobe single ipv6
5e6dfc29	347	fi
fa8aca70	348
5e6dfc29	349	if is_yes "$IPX" && is_module "ipx"; then
170103c8	350	_modprobe single ipx
5e6dfc29	351	fi
e016cdae	352	}
7e04fe0e	353
50cd434b	354	# calculate network prefix from given network mask
fa8aca70 JR	355	calcprefix()
fa8aca70 JR	356	{
944d6d80	357	local old_IFS netmask prefix endp
50cd434b JR	358
	359	old_IFS=$IFS
	360	IFS='.'
	361	netmask=$(echo $1)
	362	IFS=$old_IFS
5e6dfc29 JR	363
5e6dfc29 JR	364	prefix=0
50cd434b	365	endp=0
5937edff TP	366	for n in $netmask; do
5937edff TP	367	for i in 128 64 32 16 8 4 2 1; do
50cd434b JR	368	if [ $(($n & $i)) -ne 0 ]; then
	369	if [ $endp -eq 0 ]; then
	370	prefix=$(($prefix + 1))
	371	else
	372	echo "32"
	373	return
	374	fi
	375	else
	376	endp=1
	377	fi
	378	done
5e6dfc29	379	done
50cd434b	380	echo $prefix
490f6163	381	}
85ebccea	382
08ad08db	383	# calculate network mask from given prefix
5379c9d4	384	# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
fa8aca70 JR	385	calcnetmask()
fa8aca70 JR	386	{
944d6d80	387	local prefix a MASK
5e6dfc29 JR	388
5e6dfc29 JR	389	MASK=""
8d92f4e5	390	if [ "${1##[0-9]*}" ]; then
5e6dfc29 JR	391	prefix=32
5e6dfc29 JR	392	else
944d6d80	393	prefix=$1
5e6dfc29 JR	394	fi
	395	for i in 1 2 3 4; do
	396	case $prefix in
5937edff TP	397	7) a=254;;
	398	6) a=252;;
	399	5) a=248;;
	400	4) a=240;;
	401	3) a=224;;
	402	2) a=192;;
	403	1) a=128;;
5e6dfc29 JR	404	*)
	405	[ $prefix -ge 8 ] && a=255
	406	[ $prefix -le 0 ] && a=0
	407	;;
	408	esac
	409
	410	prefix="$(( $prefix - 8))"
	411	if [ -z "$MASK" ]; then
	412	MASK=$a
	413	else
	414	MASK=$MASK.$a
	415	fi
	416	done
	417
	418	echo $MASK
	419	return
5379c9d4	420	}
47dbf68e	421
dd8b6525	422	# Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
5e6dfc29 JR	423	get_ppp_device_and_pid ()
5e6dfc29 JR	424	{
d36ee0fb	425	if [ -f "/var/run/ppp-$DEVNAME.pid" ]; then
bf14fcab JR	426	eval $(
bf14fcab JR	427	{
5937edff TP	428	read PID; echo "PID='$PID'"
5937edff TP	429	read REALDEVICE; echo "REALDEVICE=$REALDEVICE"
bf14fcab	430	} < "/var/run/ppp-$DEVNAME.pid")
5e6dfc29 JR	431	fi
5e6dfc29 JR	432
d36ee0fb	433	if [ -z "$REALDEVICE" ]; then
5e6dfc29 JR	434	REALDEVICE=$DEVICE
5e6dfc29 JR	435	fi
dd8b6525	436	}
c3bd5d9f	437
e686ef49	438	# following function setups advanced routing rules
ec8b15cb	439	# Olgierd Pieczul <wojrus@pld-linux.org>
5e6dfc29 JR	440	setup_ip_rules ()
5e6dfc29 JR	441	{
944d6d80	442	local args prio from src
5e6dfc29	443
d36ee0fb	444	if [ -f /etc/sysconfig/static-routes ]; then
5e6dfc29	445	if is_yes "$1"; then
a51d5138	446	grep -E "^(from\|to\|iif\|tos\|fwmark\|dev\|pref\|priority\|prio)[[:blank:]]" /etc/sysconfig/static-routes \| while read args; do
5e6dfc29 JR	447	/sbin/ip rule add $args
	448	done
	449	elif is_no "$1"; then
a51d5138	450	LC_ALL=C /sbin/ip rule show \| grep -vE -e "from all lookup (main\|default\|local) \$" -e " map-to " \| while read prio from src args; do
2eb86030	451	[ "$src" = "all" ] && ip rule delete $args \|\| ip rule delete $from $src $args
5e6dfc29 JR	452	done
	453	fi
	454	fi
e686ef49	455	}
6d145c04	456
5e6dfc29 JR	457	is_wireless_device ()
	458	{
	459	if [ -x /sbin/iwconfig ]; then
	460	LC_ALL=C iwconfig "${1}" 2>&1 \| grep -q "no wireless extensions" \|\| return 0
	461	fi
	462	return 1
a6c22d3d AM	463	}
a6c22d3d AM	464
7a4d5330	465	wireless_param()
5e6dfc29 JR	466	{
	467	device="$1"
	468	if [ "$2" = "br" ]; then
	469	prefix="${device}_"
	470	else
	471	prefix=""
	472	fi
	473
7a4d5330 ER	474	local val wlan_mode
7a4d5330 ER	475
5e6dfc29	476	# wlan mode needs to be first
8d92f4e5	477	wlan_mode="$(eval echo \$${prefix}WLAN_MODE)" && [ "$wlan_mode" ] && \
7a4d5330 ER	478	iwconfig ${device} mode "$wlan_mode"
7a4d5330 ER	479
df3e1a2c AM	480	val="$(eval echo \$${prefix}WLAN_NICKNAME)" && [ "$val" ] && \
df3e1a2c AM	481	iwconfig ${device} nick "$val"
7a4d5330	482
8d92f4e5	483	val="$(eval echo \$${prefix}WLAN_NWID)" && [ "$val" ] && \
7a4d5330 ER	484	iwconfig ${device} nwid "$val"
7a4d5330 ER	485
009113c6	486	if [ "$wlan_mode" != "Managed" -a "$wlan_mode" != "managed" ]; then
8d92f4e5	487	if val="$(eval echo \$${prefix}WLAN_FREQ)" && [ "$val" ]; then
7a4d5330	488	iwconfig ${device} freq "$val"
8d92f4e5	489	elif val="$(eval echo \$${prefix}WLAN_CHANNEL)" && [ "$val" ]; then
7a4d5330 ER	490	iwconfig ${device} channel "$val"
7a4d5330 ER	491	fi
5e6dfc29	492	fi
7a4d5330	493
8d92f4e5	494	val="$(eval echo \$${prefix}WLAN_SENS)" && [ "$val" ] && \
7a4d5330	495	iwconfig ${device} sens "$val"
8d92f4e5	496	val="$(eval echo \$${prefix}WLAN_AP)" && [ "$val" ] && \
7a4d5330	497	iwconfig ${device} ap "$val"
8d92f4e5	498	val="$(eval echo \$${prefix}WLAN_BITRATE)" && [ "$val" ] && \
7a4d5330	499	iwconfig ${device} rate "$val"
8d92f4e5	500	val="$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" && [ "$val" ] && \
7a4d5330	501	iwconfig ${device} rts "$val"
8d92f4e5	502	val="$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" && [ "$val" ] && \
7a4d5330 ER	503	iwconfig ${device} frag "$val"
7a4d5330 ER	504
b9d6440a	505	local wlan_encryption="$(eval echo \$${prefix}WLAN_ENCRYPTION)"
334325e1 ER	506	local wlan_key="$(eval echo \$${prefix}WLAN_KEY)"
334325e1 ER	507	# TODO: well, actually shouldn't set WLAN_KEY if other keys than current are set
8d92f4e5	508	if [ "$wlan_key" ]; then
334325e1 ER	509	# wlan key can contain index of key to set
	510	# to set other than current keys suffix with 1-4:
	511	local idx
	512	for idx in 1 2 3 4; do
	513	val="$(eval echo \$${prefix}WLAN_KEY_$idx)"
	514	[ "$val" ] \|\| continue
f0f3583f	515	iwconfig ${device} key "[$idx]" "$val"
334325e1 ER	516	done
	517	if val="$(eval echo \$${prefix}WLAN_KEY_CURRENT)" && [ "$val" ]; then
	518	iwconfig ${device} key "[$val]"
	519	else
	520	iwconfig ${device} key "$wlan_key"
	521	fi
	522
8d92f4e5	523	[ "$wlan_encryption" ] && iwconfig ${device} key "$wlan_encryption"
7a4d5330 ER	524	fi
7a4d5330 ER	525
b9d6440a	526	if is_no "$wlan_encryption"; then
5e6dfc29 JR	527	iwconfig ${device} key off
5e6dfc29 JR	528	fi
8d92f4e5	529	val="$(eval echo \$${prefix}WLAN_POWER)" && [ "$val" ] && \
7a4d5330	530	iwconfig ${device} power "$val"
8d92f4e5	531	val="$(eval echo \$${prefix}WLAN_TXPOWER)" && [ "$val" ] && \
7a4d5330	532	iwconfig ${device} txpower "$val"
8d92f4e5	533	val="$(eval echo \$${prefix}WLAN_RETRY)" && [ "$val" ] && \
7a4d5330	534	iwconfig ${device} retry "$val"
2ae29436	535
9a0f7d04	536	# essid should be last due to network rescanning by wlan devices
8d92f4e5	537	val="$(eval echo \$${prefix}WLAN_ESSID)" && [ "$val" ] && \
7a4d5330	538	iwconfig ${device} essid "$val"
a1ac348c AM	539
	540	if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
	541	iwconfig ${device} commit
9a0f7d04	542	fi
2ae29436 AM	543	}
2ae29436 AM	544
ac2433c4 ER	545	# returns
	546	# 0 - no link
	547	# 1 - link ok
	548	# 2 - unsupported, unknown return
0336ea13 AM	549	check_mii_tool ()
0336ea13 AM	550	{
5e6dfc29	551	[ -x /sbin/mii-tool ] \|\| return 2
1e23492f	552	local output=$(LC_ALL=C mii-tool $1 2>&1)
917c3c39	553	echo $output \| grep -q "link ok" && return 1
ac2433c4 ER	554	echo $output \| grep -q "no link" && return 0
ac2433c4 ER	555	return 2
0336ea13 AM	556	}
0336ea13 AM	557
ac2433c4 ER	558	# returns
	559	# 0 - link off
	560	# 1 - link on
	561	# 2 - unsupported, unknown return
0336ea13 AM	562	check_ethtool ()
0336ea13 AM	563	{
5e6dfc29	564	[ -x /sbin/ethtool ] \|\| return 2
1e23492f	565	local output=$(LC_ALL=C ethtool $1 2>&1)
917c3c39	566	echo $output \| grep -q "Link detected: yes" && return 1
ac2433c4 ER	567	echo $output \| grep -q "Link detected: no" && return 0
ac2433c4 ER	568	return 2
0336ea13 AM	569	}
0336ea13 AM	570
ac2433c4 ER	571	# returns
	572	# 0 - radio off
	573	# 1 - radio on
	574	# 2 - unsupported
1b85f830 AM	575	check_iwconfig ()
1b85f830 AM	576	{
141b5edb	577	local output
0f55a779	578	# rfkill state (are there devices with multiple rfkill buttons?)
141b5edb	579	output=$(cat /sys/class/net/${1}/device/rfkill*/state 2> /dev/null)
0f55a779 AM	580	# 1 is rfkill not active
	581	[ "$output" = "1" ] && return 1
	582	[ "$output" = "0" -o "$output" = "2" ] && return 0
b343992d TP	583	[ -x /sbin/iwconfig ] \|\| return 2
	584	output=$(LC_ALL=C iwconfig "$1" 2>&1)
	585	# "radio off" is ipwxxx only "feature" (and there is no "radio on")
	586	echo "$output" \| grep -q "radio off" && return 0
2864e829	587	# XXX: need more generic checks for wifi
ac2433c4	588	return 2
1b85f830	589	}
0336ea13	590
ac2433c4 ER	591	# returns
	592	# 0 - link down
	593	# 1 - link up
5937edff	594	# 2 - unknown/unsupported
0336ea13 AM	595	check_link_down ()
0336ea13 AM	596	{
1b85f830	597	if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
5937edff	598	if ! LC_ALL=C ip link show dev $1 2>/dev/null\| grep -q UP; then
5e6dfc29 JR	599	ip link set dev $1 up >/dev/null 2>&1
5e6dfc29 JR	600	timeout=0
2864e829	601	while [ $timeout -le 6 ]; do
5e6dfc29 JR	602	check_ethtool $1
5e6dfc29 JR	603	e=$?
1b85f830 AM	604	check_iwconfig $1
1b85f830 AM	605	i=$?
2864e829	606	# trust ethtool and iwconfig
d36ee0fb	607	if [ $i -eq 1 ] \|\| [ $e -eq 1 ]; then
5e6dfc29 JR	608	return 1
5e6dfc29 JR	609	fi
2864e829 AM	610	# use mii check only if all other check are unsupported
2864e829 AM	611	# (mii check lies too often)
d36ee0fb TP	612	check_mii_tool $1
d36ee0fb TP	613	m=$?
2864e829	614	if [ $m -eq 1 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then
5e6dfc29 JR	615	return 1
	616	fi
	617	usleep 500000
	618	timeout=$((timeout+1))
	619	done
8413b103 TP	620	# do not abort dhclient if all the checks are unsupported
	621	if [ $m -eq 2 ] && [ $i -eq 2 ] && [ $e -eq 2 ]; then
	622	return 2
	623	fi
5e6dfc29	624	return 0
74a7f2e4	625	fi
74a7f2e4	626	fi
5937edff	627	return 2
0336ea13	628	}