[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=$(basename "$CONFIG" | awk ' { gsub(/^ifcfg-/,NIL); print $0; } ')

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