[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 ()
{
	DEVNAME=${CONFIG##*/ifcfg-}

	if [[ "$CONFIG" = /* ]]; then
		if [ -f "$CONFIG" ] ; then
			. "$CONFIG"
		fi
	elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ] ; then
		. "/etc/sysconfig/interfaces/$CONFIG"
	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.
	if [ -n "$DEVICE" -a  "$DEVNAME" != "$DEVICE" ]; then
		echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!"
		exit 1
	fi

	if [ -n "${PREFIX}" ] && [[ "$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()
{
	typeset hostname domain

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

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

	if [ -n "$domain" ] ; then
		>/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
}

# Setup Network Address Translation (NAT)
setup_nat()
{
	typeset 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
			/sbin/ip route show table all | egrep "^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()
{
	typeset 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 -k rarp
		fi
		if [ -r /etc/ethers -a -x /sbin/rarp ]; then
			run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
		fi
	fi
}

vlan_setup()
{
	if [ -x /sbin/vconfig -a -e /proc/net/vlan/config ] && `echo $DEVICE | grep -q ^eth`; then
		/sbin/vconfig set_name_type DEV_PLUS_VID_NO_PAD 2>&1 > /dev/null
		ETH_VLANS="yes"
	else
		ETH_VLANS="no"
	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 ${DEVICE} | LC_ALL=C egrep -q '^[a-z0-9]+\.[0-9]+$'); then
		DEVICETYPE=vlan
	fi

	# real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
	DEVICE=$(echo $DEVICE | awk ' { gsub(/:.*$/,NUL); print $0 } ')

	eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
	if echo "${IP4ADDR}" | grep -q ":" ; then
		IP6ADDR=${IP4ADDR}
		IP4ADDR=""
	else
		eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
		eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
	fi
	if [ -n "${IP6_PRIM_IF}" ] ; then
		eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
		eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
	fi
	if [ -n "${IP4_SRC_IF}" ] ; then
		eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
		IP4SRCADDR=$(echo ${IP4SRCADDR} | awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	fi
	if [ -n "${IP6_SRC_IF}" ] ; then
		eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
		IP6SRCADDR=$(echo ${IP6SRCADDR} | 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 [ -n "$ARP" ] ; then
		if is_yes "$ARP"; then
			ARP="arp on"
		else
			ARP="arp off"
		fi
	fi
}

check_device_down ()
{
	if (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 [ -n "${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 [ -n "${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 [ -n "${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()
{
	typeset args

	if [ -f /etc/sysconfig/static-routes ]; then
		if [ "$1" = "on" -o "$1" = "yes" ] ; then
			egrep "^(none|any)[[:blank:]]" /etc/sysconfig/static-routes | while read device args; do
				/sbin/ip route add $args
			done
		else
			egrep "^(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()
{
	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 -k ipv6
	fi

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

#
# folowing function calculates network prefix from given network mask
# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
#
calcprefix()
{
	typeset len olen bad prefix

	prefix=0
	olen=8
	bad=0
	for i in 1 2 3 4; do
		len=0
		j=$(echo "$1" | awk -F"." "{ print \$${i} }")
		case "$j" in
		  255)	len=8 ;;
		  254)	len=7 ;;
		  252)	len=6 ;;
		  248)	len=5 ;;
		  240)	len=4 ;;
		  224)	len=3 ;;
		  192)	len=2 ;;
		  128)	len=1 ;;
		  0)	len=0 ;;
		  *)	len=300 ;;
		esac
		[ "$len" -gt "$olen" ] && bad=1
		prefix=$(($prefix + $len))
		olen=$len
	done

	if [ "$bad" = "0" ]; then
		echo "$prefix"
	else
		echo "32"
	fi
	return
}

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

	MASK=""
	if [ "`echo "${1}" | grep "^[0-9]"`" = "" ]; then
		prefix=32
	else
		typeset -i 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 ()
{
	typeset args prio from src

	if [ -f /etc/sysconfig/static-routes ] ; then
		if is_yes "$1"; then
			egrep "^(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 "$1"; then
			/sbin/ip rule show | egrep -v -e "from all lookup (main|default|local) \$" -e " map-to " | while read prio from src args; do
				[ "$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

	if [ -z "$(eval echo \$${prefix}WLAN_NICKNAME)" ]; then
		 WLAN_NICKNAME="$(hostname -f 2>/dev/null || hostname 2>/dev/null || echo localhost)"
	else
		 WLAN_NICKNAME="$(eval echo \$${prefix}WLAN_NICKNAME)"
	fi

	# wlan mode needs to be first
	[ -n "$(eval echo \$${prefix}WLAN_MODE)" ] && \
		iwconfig ${device} mode "$(eval echo \$${prefix}WLAN_MODE)"
	iwconfig ${device} nick ${WLAN_NICKNAME}
	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && \
		iwconfig ${device} nwid "$(eval echo \$${prefix}WLAN_NWID)"
	if [ -n "$(eval echo \$${prefix}WLAN_FREQ)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ] ; then
		iwconfig ${device} freq "$(eval echo \$${prefix}WLAN_FREQ)"
	elif [ -n "$(eval echo \$${prefix}WLAN_CHANNEL)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ]; then
		iwconfig ${device} channel "$(eval echo \$${prefix}WLAN_CHANNEL)"
	fi
	[ -n "$(eval echo \$${prefix}WLAN_SENS)" ] && \
		iwconfig ${device} sens "$(eval echo \$${prefix}WLAN_SENS)"
	[ -n "$(eval echo \$${prefix}WLAN_AP)" ] && \
		iwconfig ${device} ap "$(eval echo \$${prefix}WLAN_AP)"
	[ -n "$(eval echo \$${prefix}WLAN_BITRATE)" ] && \
		iwconfig ${device} rate "$(eval echo \$${prefix}WLAN_BITRATE)"
	[ -n "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" ] && \
		iwconfig ${device} rts "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)"
	[ -n "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" ] && \
		iwconfig ${device} frag "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)"
	if [ -n "$(eval echo \$${prefix}WLAN_KEY)" ]; then
		iwconfig ${device} key "$(eval echo \$${prefix}WLAN_KEY)"
		[ -n "$(eval echo \$${prefix}WLAN_ENCRYPTION)" ] && \
			iwconfig ${device} key "$(eval echo \$${prefix}WLAN_ENCRYPTION)"
	fi
	if is_no "$(eval echo \$${prefix}WLAN_ENCRYPTION)"; then
		iwconfig ${device} key off
	fi
	[ -n "$(eval echo \$${prefix}WLAN_POWER)" ] && \
		iwconfig ${device} power "$(eval echo \$${prefix}WLAN_POWER)"
	[ -n "$(eval echo \$${prefix}WLAN_TXPOWER)" ] && \
		iwconfig ${device} txpower "$(eval echo \$${prefix}WLAN_TXPOWER)"
	[ -n "$(eval echo \$${prefix}WLAN_RETRY)" ] && \
		iwconfig ${device} retry "$(eval echo \$${prefix}WLAN_RETRY)"
	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && iwconfig ${device} \
		nwid "$(eval echo \$${prefix}WLAN_NWID)"

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

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

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

check_ethtool ()
{
	[ -x /sbin/ethtool ] || return 2
	output=$(LC_ALL=C ethtool $1 2>&1)
	echo $output | LC_ALL=C grep -q "Link detected: yes" && return 1
	echo $output | LC_ALL=C grep -q "Link detected: no" && return 0 || return 2
}

check_iwconfig ()
{
	[ -x /sbin/iwconfig ] || return 2
	output=$(LC_ALL=C iwconfig $1 2>&1)
	echo $output | LC_ALL=C grep -q "radio off" && return 0 || return 2
}

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 10 ]; do
				check_mii_tool $1
				m=$?
				check_ethtool $1
				e=$?
				check_iwconfig $1
				i=$?
				if [ $m -eq 1 ] || [ $e -eq 1 ] ; then
					return 1
				fi
				if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
					return 1
				fi
				usleep 500000
				timeout=$((timeout+1))
			done
			return 0
		fi
	fi
	return 1
}

# This must be last line !
# vi:syntax=sh
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	{
1377630a	10	DEVNAME=${CONFIG##*/ifcfg-}
5e6dfc29	11
1377630a	12	if [[ "$CONFIG" = /* ]]; then
5e6dfc29 JR	13	if [ -f "$CONFIG" ] ; then
	14	. "$CONFIG"
	15	fi
	16	elif [ -f "/etc/sysconfig/interfaces/$CONFIG" ] ; then
	17	. "/etc/sysconfig/interfaces/$CONFIG"
	18	fi
d100991e ER	19
	20	# This is sanity check so that if you've copied ifcfg-eth0 to ifcfg-eth1
	21	# and forgot to alter DEVICE= line you won't accidentally bring down eth0
	22	# while executing ifdown eth1.
	23	if [ -n "$DEVICE" -a "$DEVNAME" != "$DEVICE" ]; then
	24	echo >&2 "$0: DEVICE specified in $CONFIG does not match filename. Aborting!"
	25	exit 1
	26	fi
	27
1377630a	28	if [ -n "${PREFIX}" ] && [[ "$IPADDR" != / ]]; then
5e6dfc29 JR	29	IPADDR="$IPADDR/$PREFIX"
5e6dfc29 JR	30	fi
7e04fe0e	31	}
	32
	33	do_netreport ()
	34	{
5e6dfc29 JR	35	# Notify programs that have requested notification
	36	( cd /var/run/netreport \|\| exit
	37	for i in * ; do
	38	[ -f $i ] && kill -SIGIO $i >/dev/null 2>&1 \|\| \
	39	rm -f $i >/dev/null 2>&1
	40	done
	41	)
7e04fe0e	42	}
	43
	44	need_hostname()
	45	{
5411f833 ER	46	local hostname=$(hostname)
	47	if [ "$hostname" = "(none)" -o "$hostname" = "localhost" -o \
	48	"$hostname" = "localhost.localdomain" ]; then
5e6dfc29 JR	49	NEEDHOSTNAME=yes
	50	else
	51	unset NEEDHOSTNAME
	52	fi
7e04fe0e	53	}
	54
	55	set_hostname()
	56	{
5e6dfc29 JR	57	typeset hostname domain
	58
	59	hostname=$(echo $1 \| awk ' { gsub(/\..*$/,NIL); print $0; } ')
	60	domain=$(echo $1 \| awk ' { sub(/^[^\.]*\./,NIL); print $0; } ')
	61
	62	if [ -n "$hostname" ] ; then
	63	echo "$hostname" > /etc/HOSTNAME
	64	hostname $hostname
	65	fi
	66
	67	if [ -n "$domain" ] ; then
	68	>/etc/resolv.conf.new
	69	if ! grep -q "search $domain" /etc/resolv.conf ; then
	70	echo "search $domain" >> /etc/resolv.conf.new
	71	fi
	72	echo "domain $domain" >> /etc/resolv.conf.new
	73	grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new
	74	mv -f /etc/resolv.conf.new /etc/resolv.conf
	75	fi
7e04fe0e	76	}
7e04fe0e	77
767c8707 AM	78	# Setup Network Address Translation (NAT)
	79	setup_nat()
	80	{
5e6dfc29 JR	81	typeset src via dst
	82
	83	if [ -r /etc/sysconfig/static-nat ]; then
	84	if [ "$1" = "on" ]; then
	85	grep "^[0-9]" /etc/sysconfig/static-nat \| while read src via dst; do
	86	/sbin/ip route add nat $dst via $src
	87	/sbin/ip rule add from $src nat $dst
	88	done
	89	elif [ "$1" = "off" ]; then
	90	/sbin/ip route show table all \| egrep "^nat[[:blank:]]" \| while read nat dst via src args; do
	91	/sbin/ip rule del from $src nat $dst
	92	/sbin/ip route del nat $dst via $src
	93	done
	94	fi
	95	fi
767c8707 AM	96	}
767c8707 AM	97
fa8aca70 JR	98	# Setup static ARP
fa8aca70 JR	99	static_arp()
7e04fe0e	100	{
5e6dfc29 JR	101	typeset rc arpdev host hwaddr flags neflags
	102
	103	if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then
	104	if [ -x /sbin/arp ]; then
	105	run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers
	106	else
	107	show "Setting static ARP entries"; busy
	108	rc=0
	109	arpdev=$(ip link show \| awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }')
	110	if [ -z "$arpdev" ]; then
	111	rc=1
	112	else
	113	# ip supports only ip addresses
	114	grep "^[0-9]" /etc/ethers \| \
	115	while read host hwaddr flags; do
	116	case "$flags" in
	117	temp)
	118	neflags="nud stale"
	119	;;
	120	*)
	121	neflags="nud permanent"
	122	;;
	123	esac
	124	if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then
	125	rc=1
	126	fi
	127	done
	128	fi
	129	if [ "$rc" -gt 0 ]; then
	130	fail
	131	fi
0a6161f2	132	fi
74a7f2e4	133	fi
7e04fe0e	134	}
7e04fe0e	135
fa8aca70	136	static_rarp()
7e04fe0e	137	{
5e6dfc29 JR	138	if is_yes "$STATIC_RARP"; then
	139	if [ ! -e /proc/net/rarp ]; then
	140	_modprobe single -k rarp
	141	fi
	142	if [ -r /etc/ethers -a -x /sbin/rarp ]; then
	143	run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
	144	fi
	145	fi
e9e86175 AM	146	}
e9e86175 AM	147
fa8aca70	148	vlan_setup()
e9e86175	149	{
5e6dfc29 JR	150	if [ -x /sbin/vconfig -a -e /proc/net/vlan/config ] && `echo $DEVICE \| grep -q ^eth`; then
	151	/sbin/vconfig set_name_type DEV_PLUS_VID_NO_PAD 2>&1 > /dev/null
	152	ETH_VLANS="yes"
	153	else
	154	ETH_VLANS="no"
	155	fi
de1fc6ce JR	156	}
de1fc6ce JR	157
fa8aca70 JR	158	# Set up all IP && IP parameter variables
fa8aca70 JR	159	setup_ip_param ()
38198f50	160	{
5e6dfc29 JR	161	# detect network device type (ie. dummy, eth for dummy0, eth0 ..)
	162	if [ -z "$DEVICETYPE" ]; then
	163	DEVICETYPE=$(echo $DEVICE \| awk ' { gsub(/[0-9]\.?[0-9]$/,NUL); print $0 } ')
	164	fi
	165
	166	# Setup DEVICETYPE for special cases.
	167	if (echo ${DEVICE} \| LC_ALL=C egrep -q '^[a-z0-9]+\.[0-9]+$'); then
	168	DEVICETYPE=vlan
	169	fi
	170
	171	# real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
	172	DEVICE=$(echo $DEVICE \| awk ' { gsub(/:.*$/,NUL); print $0 } ')
	173
	174	eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
	175	if echo "${IP4ADDR}" \| grep -q ":" ; then
	176	IP6ADDR=${IP4ADDR}
	177	IP4ADDR=""
	178	else
	179	eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
	180	eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
	181	fi
	182	if [ -n "${IP6_PRIM_IF}" ] ; then
	183	eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
	184	eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
	185	fi
	186	if [ -n "${IP4_SRC_IF}" ] ; then
	187	eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
	188	IP4SRCADDR=$(echo ${IP4SRCADDR} \| awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	189	fi
	190	if [ -n "${IP6_SRC_IF}" ] ; then
	191	eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
	192	IP6SRCADDR=$(echo ${IP6SRCADDR} \| awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	193	fi
	194
	195	# new rc-scripts 0.4.x option
	196	if [ -z "$HANDLING" ]; then
	197	HANDLING=0
	198	fi
	199
	200	# set handling for bridge
	201	case "$DEVICETYPE" in
	202	br\|atm\|lec\|irda\|vlan)
	203	HANDLING=1
	204	;;
	205	esac
74a7f2e4	206
5e6dfc29 JR	207	# Multicast ready devices
	208	if is_yes "$MULTICAST"; then
	209	MULTICAST="on"
	210	else
	211	case "$DEVICETYPE" in
	212	eth\|br)
	213	MULTICAST="on"
	214	;;
	215	*)
	216	MULTICAST="off"
	217	;;
	218	esac
	219	fi
	220
	221	# ARP ready devices
	222	if [ -n "$ARP" ] ; then
	223	if is_yes "$ARP"; then
	224	ARP="arp on"
	225	else
	226	ARP="arp off"
	227	fi
	228	fi
38198f50 AM	229	}
38198f50 AM	230
fa8aca70	231	check_device_down ()
38198f50	232	{
5e6dfc29 JR	233	if (ip link show dev ${DEVICE} 2> /dev/null \| grep -q UP); then
	234	return 1
	235	else
	236	return 0
	237	fi
38198f50 AM	238	}
38198f50 AM	239
5e6dfc29	240	setup_ip_gw_ro ()
38198f50	241	{
5e6dfc29 JR	242	# IPv4 gateway
	243	if is_yes "$IPV4_NETWORKING"; then
	244	if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
	245	# set up default gateway
	246	if [ -n "${GATEWAY}" ]; then
b6fb522d ER	247	ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
	248	if [ $? = 0 ]; then
	249	DEFGW=${GATEWAY}
	250	else
	251	# The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
	252	# To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
	253	nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
	254	fi
5e6dfc29 JR	255	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
	256	ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
	257	fi
	258	fi
	259	fi
	260
	261	# IPv6 gateway && IPv6 globalroute
	262	if is_yes "$IPV6_NETWORKING"; then
	263	if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	264	# set up default gateway
	265	if [ -n "${GATEWAY6}" ]; then
	266	ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
	267	DEFGW6=${GATEWAY6}
	268	elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	269	ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
	270	fi
	271	fi
	272	if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	273	# set up default route
	274	if [ -n "${IPV6_GLOBALROUTEGW}" ]; then
	275	ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
	276	elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	277	ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
	278	fi
	279	fi
	280	fi
0a6161f2	281	}
0a6161f2	282
fa8aca70 JR	283	#
	284	# following function sets up routes not associated to any device
	285	# eg. unreachable or blackhole routes
ec8b15cb	286	# (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
fa8aca70 JR	287	#
fa8aca70 JR	288	setup_routes()
0a6161f2	289	{
5e6dfc29 JR	290	typeset args
	291
	292	if [ -f /etc/sysconfig/static-routes ]; then
	293	if [ "$1" = "on" -o "$1" = "yes" ] ; then
	294	egrep "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
	295	/sbin/ip route add $args
	296	done
	297	else
	298	egrep "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
	299	/sbin/ip route del $args 2>/dev/null
	300	done
	301	fi
	302	fi
0a6161f2	303	}
38198f50	304
fa8aca70 JR	305	# Add ONLY IPv4 address (IPv6 address is added automaticly)
fa8aca70 JR	306	set_up_loopback()
0a6161f2	307	{
5e6dfc29 JR	308	if is_yes "$IPV4_NETWORKING"; then
	309	ip addr add 127.0.0.1/8 dev lo
	310	fi
	311	ip link set dev lo up
fa8aca70 JR	312	}
	313
	314	set_down_loopback()
	315	{
5e6dfc29 JR	316	ip addr flush dev lo 2>&1 \| grep -v "Nothing to flush"
5e6dfc29 JR	317	ip link set dev lo down
0a6161f2	318	}
	319
	320	modprobe_net()
	321	{
5e6dfc29 JR	322	if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
	323	_modprobe single -k ipv6
	324	fi
fa8aca70	325
5e6dfc29 JR	326	if is_yes "$IPX" && is_module "ipx"; then
	327	_modprobe single -k ipx
	328	fi
e016cdae	329	}
7e04fe0e	330
490f6163	331	#
490f6163	332	# folowing function calculates network prefix from given network mask
490f6163	333	# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
490f6163	334	#
fa8aca70 JR	335	calcprefix()
fa8aca70 JR	336	{
5e6dfc29 JR	337	typeset len olen bad prefix
	338
	339	prefix=0
	340	olen=8
	341	bad=0
	342	for i in 1 2 3 4; do
	343	len=0
	344	j=$(echo "$1" \| awk -F"." "{ print \$${i} }")
	345	case "$j" in
	346	255) len=8 ;;
	347	254) len=7 ;;
	348	252) len=6 ;;
	349	248) len=5 ;;
	350	240) len=4 ;;
	351	224) len=3 ;;
	352	192) len=2 ;;
	353	128) len=1 ;;
	354	0) len=0 ;;
	355	*) len=300 ;;
	356	esac
	357	[ "$len" -gt "$olen" ] && bad=1
	358	prefix=$(($prefix + $len))
	359	olen=$len
	360	done
	361
	362	if [ "$bad" = "0" ]; then
	363	echo "$prefix"
	364	else
	365	echo "32"
	366	fi
	367	return
490f6163	368	}
85ebccea	369
5379c9d4	370	#
	371	# folowing function calculates network mask from given prefix
	372	# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
	373	#
fa8aca70 JR	374	calcnetmask()
fa8aca70 JR	375	{
5e6dfc29 JR	376	typeset prefix a MASK
	377
	378	MASK=""
	379	if [ "`echo "${1}" \| grep "^[0-9]"`" = "" ]; then
	380	prefix=32
	381	else
	382	typeset -i prefix=$1
	383	fi
	384	for i in 1 2 3 4; do
	385	case $prefix in
	386	7) a=254 ;;
	387	6) a=252 ;;
	388	5) a=248 ;;
	389	4) a=240 ;;
	390	3) a=224 ;;
	391	2) a=192 ;;
	392	1) a=128 ;;
	393	*)
	394	[ $prefix -ge 8 ] && a=255
	395	[ $prefix -le 0 ] && a=0
	396	;;
	397	esac
	398
	399	prefix="$(( $prefix - 8))"
	400	if [ -z "$MASK" ]; then
	401	MASK=$a
	402	else
	403	MASK=$MASK.$a
	404	fi
	405	done
	406
	407	echo $MASK
	408	return
5379c9d4	409	}
47dbf68e	410
dd8b6525	411	# Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
5e6dfc29 JR	412	get_ppp_device_and_pid ()
	413	{
	414	if [ -f "/var/run/ppp-$DEVNAME.pid" ] ; then
	415	eval `{
	416	read PID ; echo "PID='$PID'"
	417	read REALDEVICE ; echo "REALDEVICE=$REALDEVICE"
	418	} < "/var/run/ppp-$DEVNAME.pid"`
	419	fi
	420
	421	if [ -z "$REALDEVICE" ] ; then
	422	REALDEVICE=$DEVICE
	423	fi
dd8b6525	424	}
c3bd5d9f	425
e686ef49	426	# following function setups advanced routing rules
ec8b15cb	427	# Olgierd Pieczul <wojrus@pld-linux.org>
5e6dfc29 JR	428	setup_ip_rules ()
	429	{
	430	typeset args prio from src
	431
	432	if [ -f /etc/sysconfig/static-routes ] ; then
	433	if is_yes "$1"; then
	434	egrep "^(from\|to\|iif\|tos\|fwmark\|dev\|pref\|priority\|prio)[[:blank:]]" /etc/sysconfig/static-routes \| while read args; do
	435	/sbin/ip rule add $args
	436	done
	437	elif is_no "$1"; then
	438	/sbin/ip rule show \| egrep -v -e "from all lookup (main\|default\|local) \$" -e " map-to " \| while read prio from src args; do
	439	[ "$src" == "all" ] && ip rule delete $args \|\| ip rule delete $from $src $args
	440	done
	441	fi
	442	fi
e686ef49	443	}
6d145c04	444
5e6dfc29 JR	445	is_wireless_device ()
	446	{
	447	if [ -x /sbin/iwconfig ]; then
	448	LC_ALL=C iwconfig "${1}" 2>&1 \| grep -q "no wireless extensions" \|\| return 0
	449	fi
	450	return 1
a6c22d3d AM	451	}
a6c22d3d AM	452
5e6dfc29 JR	453	wireless_param ()
	454	{
	455	device="$1"
	456	if [ "$2" = "br" ]; then
	457	prefix="${device}_"
	458	else
	459	prefix=""
	460	fi
	461
	462	if [ -z "$(eval echo \$${prefix}WLAN_NICKNAME)" ]; then
aa59debd	463	WLAN_NICKNAME="$(hostname -f 2>/dev/null \|\| hostname 2>/dev/null \|\| echo localhost)"
5e6dfc29	464	else
7ac73e84	465	WLAN_NICKNAME="$(eval echo \$${prefix}WLAN_NICKNAME)"
5e6dfc29 JR	466	fi
	467
	468	# wlan mode needs to be first
	469	[ -n "$(eval echo \$${prefix}WLAN_MODE)" ] && \
	470	iwconfig ${device} mode "$(eval echo \$${prefix}WLAN_MODE)"
cbe41687	471	iwconfig ${device} nick ${WLAN_NICKNAME}
5e6dfc29 JR	472	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && \
	473	iwconfig ${device} nwid "$(eval echo \$${prefix}WLAN_NWID)"
	474	if [ -n "$(eval echo \$${prefix}WLAN_FREQ)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ] ; then
	475	iwconfig ${device} freq "$(eval echo \$${prefix}WLAN_FREQ)"
	476	elif [ -n "$(eval echo \$${prefix}WLAN_CHANNEL)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ]; then
	477	iwconfig ${device} channel "$(eval echo \$${prefix}WLAN_CHANNEL)"
	478	fi
	479	[ -n "$(eval echo \$${prefix}WLAN_SENS)" ] && \
	480	iwconfig ${device} sens "$(eval echo \$${prefix}WLAN_SENS)"
	481	[ -n "$(eval echo \$${prefix}WLAN_AP)" ] && \
	482	iwconfig ${device} ap "$(eval echo \$${prefix}WLAN_AP)"
	483	[ -n "$(eval echo \$${prefix}WLAN_BITRATE)" ] && \
	484	iwconfig ${device} rate "$(eval echo \$${prefix}WLAN_BITRATE)"
	485	[ -n "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" ] && \
	486	iwconfig ${device} rts "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)"
	487	[ -n "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" ] && \
	488	iwconfig ${device} frag "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)"
	489	if [ -n "$(eval echo \$${prefix}WLAN_KEY)" ]; then
	490	iwconfig ${device} key "$(eval echo \$${prefix}WLAN_KEY)"
	491	[ -n "$(eval echo \$${prefix}WLAN_ENCRYPTION)" ] && \
	492	iwconfig ${device} key "$(eval echo \$${prefix}WLAN_ENCRYPTION)"
	493	fi
	494	if is_no "$(eval echo \$${prefix}WLAN_ENCRYPTION)"; then
	495	iwconfig ${device} key off
	496	fi
	497	[ -n "$(eval echo \$${prefix}WLAN_POWER)" ] && \
f3f7385d	498	iwconfig ${device} power "$(eval echo \$${prefix}WLAN_POWER)"
5e6dfc29	499	[ -n "$(eval echo \$${prefix}WLAN_TXPOWER)" ] && \
f3f7385d	500	iwconfig ${device} txpower "$(eval echo \$${prefix}WLAN_TXPOWER)"
5e6dfc29	501	[ -n "$(eval echo \$${prefix}WLAN_RETRY)" ] && \
f3f7385d	502	iwconfig ${device} retry "$(eval echo \$${prefix}WLAN_RETRY)"
5e6dfc29 JR	503	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && iwconfig ${device} \
5e6dfc29 JR	504	nwid "$(eval echo \$${prefix}WLAN_NWID)"
2ae29436	505
9a0f7d04	506	# essid should be last due to network rescanning by wlan devices
5e6dfc29 JR	507	[ -n "$(eval echo \$${prefix}WLAN_ESSID)" ] && iwconfig ${device} \
5e6dfc29 JR	508	essid "$(eval echo \$${prefix}WLAN_ESSID)"
a1ac348c AM	509
	510	if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
	511	iwconfig ${device} commit
9a0f7d04	512	fi
2ae29436 AM	513	}
2ae29436 AM	514
0336ea13 AM	515	check_mii_tool ()
0336ea13 AM	516	{
5e6dfc29 JR	517	[ -x /sbin/mii-tool ] \|\| return 2
	518	output=$(LC_ALL=C mii-tool $1 2>&1)
	519	echo $output \| LC_ALL=C grep -q "link ok" && return 1
	520	echo $output \| LC_ALL=C grep -q "no link" && return 0 \|\| return 2
0336ea13 AM	521	}
	522
	523	check_ethtool ()
	524	{
5e6dfc29 JR	525	[ -x /sbin/ethtool ] \|\| return 2
	526	output=$(LC_ALL=C ethtool $1 2>&1)
	527	echo $output \| LC_ALL=C grep -q "Link detected: yes" && return 1
	528	echo $output \| LC_ALL=C grep -q "Link detected: no" && return 0 \|\| return 2
0336ea13 AM	529	}
0336ea13 AM	530
1b85f830 AM	531	check_iwconfig ()
	532	{
	533	[ -x /sbin/iwconfig ] \|\| return 2
	534	output=$(LC_ALL=C iwconfig $1 2>&1)
	535	echo $output \| LC_ALL=C grep -q "radio off" && return 0 \|\| return 2
	536	}
0336ea13 AM	537
	538	check_link_down ()
	539	{
1b85f830	540	if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
5e6dfc29 JR	541	if ! LC_ALL=C ip link show dev $1 2>/dev/null\| grep -q UP ; then
	542	ip link set dev $1 up >/dev/null 2>&1
	543	timeout=0
	544	while [ $timeout -le 10 ]; do
	545	check_mii_tool $1
	546	m=$?
	547	check_ethtool $1
	548	e=$?
1b85f830 AM	549	check_iwconfig $1
1b85f830 AM	550	i=$?
5e6dfc29 JR	551	if [ $m -eq 1 ] \|\| [ $e -eq 1 ] ; then
	552	return 1
	553	fi
1b85f830	554	if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
5e6dfc29 JR	555	return 1
	556	fi
	557	usleep 500000
	558	timeout=$((timeout+1))
	559	done
	560	return 0
74a7f2e4	561	fi
74a7f2e4	562	fi
5e6dfc29	563	return 1
0336ea13	564	}
2ae29436	565
e9e86175	566	# This must be last line !
5e6dfc29	567	# vi:syntax=sh