[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
}

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()
{
	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 $domain" >> /etc/resolv.conf.new
	73	grep -v "^domain " /etc/resolv.conf >> /etc/resolv.conf.new
	74	mv -f /etc/resolv.conf.new /etc/resolv.conf
	75	fi
7e04fe0e	76	}
7e04fe0e	77
f1dba8bc ER	78	set_dhcpclient()
	79	{
	80	if [ "$BOOTPROTO" = "bootp" -o "$BOOTPROTO" = "pump" ]; then
	81	DHCP_CLIENT=/sbin/pump
	82	fi
	83
	84	if [ -z "$DHCP_CLIENT" ]; then
	85	if [ -x /sbin/dhcpcd ]; then
	86	DHCP_CLIENT=/sbin/dhcpcd
	87	elif [ -x /sbin/dhclient ]; then
	88	DHCP_CLIENT=/sbin/dhclient
	89	elif [ -x /sbin/dhcpxd ]; then
	90	DHCP_CLIENT=/sbin/dhcpxd
	91	elif [ -x /sbin/pump ]; then
	92	DHCP_CLIENT=/sbin/pump
	93	else
	94	nls "Can't find a dhcp client."
	95	exit 1
	96	fi
	97	fi
	98	}
	99
767c8707 AM	100	# Setup Network Address Translation (NAT)
	101	setup_nat()
	102	{
5e6dfc29 JR	103	typeset src via dst
	104
	105	if [ -r /etc/sysconfig/static-nat ]; then
	106	if [ "$1" = "on" ]; then
	107	grep "^[0-9]" /etc/sysconfig/static-nat \| while read src via dst; do
	108	/sbin/ip route add nat $dst via $src
	109	/sbin/ip rule add from $src nat $dst
	110	done
	111	elif [ "$1" = "off" ]; then
	112	/sbin/ip route show table all \| egrep "^nat[[:blank:]]" \| while read nat dst via src args; do
	113	/sbin/ip rule del from $src nat $dst
	114	/sbin/ip route del nat $dst via $src
	115	done
	116	fi
	117	fi
767c8707 AM	118	}
767c8707 AM	119
fa8aca70 JR	120	# Setup static ARP
fa8aca70 JR	121	static_arp()
7e04fe0e	122	{
5e6dfc29 JR	123	typeset rc arpdev host hwaddr flags neflags
	124
	125	if is_yes "$STATIC_ARP" && [ -r /etc/ethers ]; then
	126	if [ -x /sbin/arp ]; then
	127	run_cmd "Setting static ARP entries" /sbin/arp -f /etc/ethers
	128	else
	129	show "Setting static ARP entries"; busy
	130	rc=0
	131	arpdev=$(ip link show \| awk -F':' '(/UP/) && ! (/NOARP/) && ! (/lo:/) && ! (/NONE:/) { print $2; exit }')
	132	if [ -z "$arpdev" ]; then
	133	rc=1
	134	else
	135	# ip supports only ip addresses
	136	grep "^[0-9]" /etc/ethers \| \
	137	while read host hwaddr flags; do
	138	case "$flags" in
	139	temp)
	140	neflags="nud stale"
	141	;;
	142	*)
	143	neflags="nud permanent"
	144	;;
	145	esac
	146	if ! /sbin/ip neigh add $host lladdr $hwaddr $neflags dev $arpdev; then
	147	rc=1
	148	fi
	149	done
	150	fi
	151	if [ "$rc" -gt 0 ]; then
	152	fail
	153	fi
0a6161f2	154	fi
74a7f2e4	155	fi
7e04fe0e	156	}
7e04fe0e	157
fa8aca70	158	static_rarp()
7e04fe0e	159	{
5e6dfc29 JR	160	if is_yes "$STATIC_RARP"; then
	161	if [ ! -e /proc/net/rarp ]; then
	162	_modprobe single -k rarp
	163	fi
	164	if [ -r /etc/ethers -a -x /sbin/rarp ]; then
	165	run_cmd "Setting static RARP entries" /sbin/rarp -f /etc/ethers
	166	fi
	167	fi
e9e86175 AM	168	}
e9e86175 AM	169
fa8aca70	170	vlan_setup()
e9e86175	171	{
5e6dfc29 JR	172	if [ -x /sbin/vconfig -a -e /proc/net/vlan/config ] && `echo $DEVICE \| grep -q ^eth`; then
	173	/sbin/vconfig set_name_type DEV_PLUS_VID_NO_PAD 2>&1 > /dev/null
	174	ETH_VLANS="yes"
	175	else
	176	ETH_VLANS="no"
	177	fi
de1fc6ce JR	178	}
de1fc6ce JR	179
fa8aca70 JR	180	# Set up all IP && IP parameter variables
fa8aca70 JR	181	setup_ip_param ()
38198f50	182	{
5e6dfc29 JR	183	# detect network device type (ie. dummy, eth for dummy0, eth0 ..)
	184	if [ -z "$DEVICETYPE" ]; then
	185	DEVICETYPE=$(echo $DEVICE \| awk ' { gsub(/[0-9]\.?[0-9]$/,NUL); print $0 } ')
	186	fi
	187
	188	# Setup DEVICETYPE for special cases.
	189	if (echo ${DEVICE} \| LC_ALL=C egrep -q '^[a-z0-9]+\.[0-9]+$'); then
	190	DEVICETYPE=vlan
	191	fi
	192
	193	# real name of device (ie. is eth0 for eth0,eth0:1,eth0:alias)
	194	DEVICE=$(echo $DEVICE \| awk ' { gsub(/:.*$/,NUL); print $0 } ')
	195
	196	eval IP4ADDR="\$IPADDR${IP4_PRIM_IF:-}"
	197	if echo "${IP4ADDR}" \| grep -q ":" ; then
	198	IP6ADDR=${IP4ADDR}
	199	IP4ADDR=""
	200	else
	201	eval IP4ADDROPT="\$IP_AOPTS${IP4_PRIM_IF:-}"
	202	eval IP4ROUTEOPT="\$IP_ROPTS${IP4_PRIM_IF:-}"
	203	fi
	204	if [ -n "${IP6_PRIM_IF}" ] ; then
	205	eval IP6ADDR="\$IPADDR${IP6_PRIM_IF:-}"
	206	eval IP6ADDROPT="\$IPV6_AOPTS${IP6_PRIM_IF:-}"
	207	fi
	208	if [ -n "${IP4_SRC_IF}" ] ; then
	209	eval IP4SRCADDR="\$IPADDR${IP4_SRC_IF}"
	210	IP4SRCADDR=$(echo ${IP4SRCADDR} \| awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	211	fi
	212	if [ -n "${IP6_SRC_IF}" ] ; then
	213	eval IP6SRCADDR="\$IPADDR${IP6_SRC_IF}"
	214	IP6SRCADDR=$(echo ${IP6SRCADDR} \| awk ' { gsub(/\/.*/,NIL); print "src " $0; } ')
	215	fi
	216
	217	# new rc-scripts 0.4.x option
	218	if [ -z "$HANDLING" ]; then
	219	HANDLING=0
	220	fi
	221
	222	# set handling for bridge
	223	case "$DEVICETYPE" in
	224	br\|atm\|lec\|irda\|vlan)
	225	HANDLING=1
	226	;;
	227	esac
74a7f2e4	228
5e6dfc29 JR	229	# Multicast ready devices
	230	if is_yes "$MULTICAST"; then
	231	MULTICAST="on"
	232	else
	233	case "$DEVICETYPE" in
	234	eth\|br)
	235	MULTICAST="on"
	236	;;
	237	*)
	238	MULTICAST="off"
	239	;;
	240	esac
	241	fi
	242
	243	# ARP ready devices
	244	if [ -n "$ARP" ] ; then
	245	if is_yes "$ARP"; then
	246	ARP="arp on"
	247	else
	248	ARP="arp off"
	249	fi
	250	fi
38198f50 AM	251	}
38198f50 AM	252
fa8aca70	253	check_device_down ()
38198f50	254	{
5e6dfc29 JR	255	if (ip link show dev ${DEVICE} 2> /dev/null \| grep -q UP); then
	256	return 1
	257	else
	258	return 0
	259	fi
38198f50 AM	260	}
38198f50 AM	261
5e6dfc29	262	setup_ip_gw_ro ()
38198f50	263	{
5e6dfc29 JR	264	# IPv4 gateway
	265	if is_yes "$IPV4_NETWORKING"; then
	266	if [ -z "${GATEWAYDEV}" -o "${GATEWAYDEV}" = "${DEVICE}" ]; then
	267	# set up default gateway
	268	if [ -n "${GATEWAY}" ]; then
b6fb522d ER	269	ip -4 route add default via ${GATEWAY} dev ${DEVICE} ${IP4SRCADDR} onlink 2>/dev/null
	270	if [ $? = 0 ]; then
	271	DEFGW=${GATEWAY}
	272	else
	273	# The default gateway could be set via eth0, while bringing up eth1 we shouldn't set default gateway again.
	274	# To prevent this message just set GATEWAYDEV=eth0 in /etc/sysconfig/network.
	275	nls "Warning: Default gateway already set proably via other interface. Do you need to setup GATEWAYDEV?"
	276	fi
5e6dfc29 JR	277	elif [ "${GATEWAYDEV}" = "${DEVICE}" ]; then
	278	ip -4 route add default dev ${DEVICE} ${IP4SRCADDR}
	279	fi
	280	fi
	281	fi
	282
	283	# IPv6 gateway && IPv6 globalroute
	284	if is_yes "$IPV6_NETWORKING"; then
	285	if [ -z "${GATEWAY6DEV}" -o "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	286	# set up default gateway
	287	if [ -n "${GATEWAY6}" ]; then
	288	ip -6 route add default via ${GATEWAY6} dev ${DEVICE} ${IP6SRCADDR} onlink
	289	DEFGW6=${GATEWAY6}
	290	elif [ "${GATEWAY6DEV}" = "${DEVICE}" ]; then
	291	ip -6 route add default dev ${DEVICE} ${IP6SRCADDR}
	292	fi
	293	fi
	294	if [ -z "${IPV6_GLOBALROUTEDEV}" -o "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	295	# set up default route
	296	if [ -n "${IPV6_GLOBALROUTEGW}" ]; then
	297	ip -6 route add 2000::/3 via ${IPV6_GLOBALROUTEGW} dev ${DEVICE} ${IP6SRCADDR} onlink
	298	elif [ "${IPV6_GLOBALROUTEDEV}" = "${DEVICE}" ]; then
	299	ip -6 route add 2000::/3 dev ${DEVICE} ${IP6SRCADDR}
	300	fi
	301	fi
	302	fi
0a6161f2	303	}
0a6161f2	304
fa8aca70 JR	305	#
	306	# following function sets up routes not associated to any device
	307	# eg. unreachable or blackhole routes
ec8b15cb	308	# (c) 1999 Jacek Konieczny <jajcus@pld-linux.org>
fa8aca70 JR	309	#
fa8aca70 JR	310	setup_routes()
0a6161f2	311	{
5e6dfc29 JR	312	typeset args
	313
	314	if [ -f /etc/sysconfig/static-routes ]; then
	315	if [ "$1" = "on" -o "$1" = "yes" ] ; then
	316	egrep "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
	317	/sbin/ip route add $args
	318	done
	319	else
	320	egrep "^(none\|any)[[:blank:]]" /etc/sysconfig/static-routes \| while read device args; do
	321	/sbin/ip route del $args 2>/dev/null
	322	done
	323	fi
	324	fi
0a6161f2	325	}
38198f50	326
fa8aca70 JR	327	# Add ONLY IPv4 address (IPv6 address is added automaticly)
fa8aca70 JR	328	set_up_loopback()
0a6161f2	329	{
5e6dfc29 JR	330	if is_yes "$IPV4_NETWORKING"; then
	331	ip addr add 127.0.0.1/8 dev lo
	332	fi
	333	ip link set dev lo up
fa8aca70 JR	334	}
	335
	336	set_down_loopback()
	337	{
5e6dfc29 JR	338	ip addr flush dev lo 2>&1 \| grep -v "Nothing to flush"
5e6dfc29 JR	339	ip link set dev lo down
0a6161f2	340	}
	341
	342	modprobe_net()
	343	{
5e6dfc29 JR	344	if is_yes "$IPV6_NETWORKING" && is_module "ipv6"; then
	345	_modprobe single -k ipv6
	346	fi
fa8aca70	347
5e6dfc29 JR	348	if is_yes "$IPX" && is_module "ipx"; then
	349	_modprobe single -k ipx
	350	fi
e016cdae	351	}
7e04fe0e	352
490f6163	353	#
490f6163	354	# folowing function calculates network prefix from given network mask
490f6163	355	# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
490f6163	356	#
fa8aca70 JR	357	calcprefix()
fa8aca70 JR	358	{
5e6dfc29 JR	359	typeset len olen bad prefix
	360
	361	prefix=0
	362	olen=8
	363	bad=0
	364	for i in 1 2 3 4; do
	365	len=0
	366	j=$(echo "$1" \| awk -F"." "{ print \$${i} }")
	367	case "$j" in
	368	255) len=8 ;;
	369	254) len=7 ;;
	370	252) len=6 ;;
	371	248) len=5 ;;
	372	240) len=4 ;;
	373	224) len=3 ;;
	374	192) len=2 ;;
	375	128) len=1 ;;
	376	0) len=0 ;;
	377	*) len=300 ;;
	378	esac
	379	[ "$len" -gt "$olen" ] && bad=1
	380	prefix=$(($prefix + $len))
	381	olen=$len
	382	done
	383
	384	if [ "$bad" = "0" ]; then
	385	echo "$prefix"
	386	else
	387	echo "32"
	388	fi
	389	return
490f6163	390	}
85ebccea	391
5379c9d4	392	#
	393	# folowing function calculates network mask from given prefix
	394	# (c) 1999 Grzegorz Stanislawski <stangrze@open.net.pl>
	395	#
fa8aca70 JR	396	calcnetmask()
fa8aca70 JR	397	{
5e6dfc29 JR	398	typeset prefix a MASK
	399
	400	MASK=""
	401	if [ "`echo "${1}" \| grep "^[0-9]"`" = "" ]; then
	402	prefix=32
	403	else
	404	typeset -i prefix=$1
	405	fi
	406	for i in 1 2 3 4; do
	407	case $prefix in
	408	7) a=254 ;;
	409	6) a=252 ;;
	410	5) a=248 ;;
	411	4) a=240 ;;
	412	3) a=224 ;;
	413	2) a=192 ;;
	414	1) a=128 ;;
	415	*)
	416	[ $prefix -ge 8 ] && a=255
	417	[ $prefix -le 0 ] && a=0
	418	;;
	419	esac
	420
	421	prefix="$(( $prefix - 8))"
	422	if [ -z "$MASK" ]; then
	423	MASK=$a
	424	else
	425	MASK=$MASK.$a
	426	fi
	427	done
	428
	429	echo $MASK
	430	return
5379c9d4	431	}
47dbf68e	432
dd8b6525	433	# Retrievies PPPD PID and real interface name from /var/run/ppp-*.pid
5e6dfc29 JR	434	get_ppp_device_and_pid ()
	435	{
	436	if [ -f "/var/run/ppp-$DEVNAME.pid" ] ; then
	437	eval `{
	438	read PID ; echo "PID='$PID'"
	439	read REALDEVICE ; echo "REALDEVICE=$REALDEVICE"
	440	} < "/var/run/ppp-$DEVNAME.pid"`
	441	fi
	442
	443	if [ -z "$REALDEVICE" ] ; then
	444	REALDEVICE=$DEVICE
	445	fi
dd8b6525	446	}
c3bd5d9f	447
e686ef49	448	# following function setups advanced routing rules
ec8b15cb	449	# Olgierd Pieczul <wojrus@pld-linux.org>
5e6dfc29 JR	450	setup_ip_rules ()
	451	{
	452	typeset args prio from src
	453
	454	if [ -f /etc/sysconfig/static-routes ] ; then
	455	if is_yes "$1"; then
	456	egrep "^(from\|to\|iif\|tos\|fwmark\|dev\|pref\|priority\|prio)[[:blank:]]" /etc/sysconfig/static-routes \| while read args; do
	457	/sbin/ip rule add $args
	458	done
	459	elif is_no "$1"; then
	460	/sbin/ip rule show \| egrep -v -e "from all lookup (main\|default\|local) \$" -e " map-to " \| while read prio from src args; do
	461	[ "$src" == "all" ] && ip rule delete $args \|\| ip rule delete $from $src $args
	462	done
	463	fi
	464	fi
e686ef49	465	}
6d145c04	466
5e6dfc29 JR	467	is_wireless_device ()
	468	{
	469	if [ -x /sbin/iwconfig ]; then
	470	LC_ALL=C iwconfig "${1}" 2>&1 \| grep -q "no wireless extensions" \|\| return 0
	471	fi
	472	return 1
a6c22d3d AM	473	}
a6c22d3d AM	474
5e6dfc29 JR	475	wireless_param ()
	476	{
	477	device="$1"
	478	if [ "$2" = "br" ]; then
	479	prefix="${device}_"
	480	else
	481	prefix=""
	482	fi
	483
	484	if [ -z "$(eval echo \$${prefix}WLAN_NICKNAME)" ]; then
aa59debd	485	WLAN_NICKNAME="$(hostname -f 2>/dev/null \|\| hostname 2>/dev/null \|\| echo localhost)"
5e6dfc29	486	else
7ac73e84	487	WLAN_NICKNAME="$(eval echo \$${prefix}WLAN_NICKNAME)"
5e6dfc29 JR	488	fi
	489
	490	# wlan mode needs to be first
	491	[ -n "$(eval echo \$${prefix}WLAN_MODE)" ] && \
	492	iwconfig ${device} mode "$(eval echo \$${prefix}WLAN_MODE)"
cbe41687	493	iwconfig ${device} nick ${WLAN_NICKNAME}
5e6dfc29 JR	494	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && \
	495	iwconfig ${device} nwid "$(eval echo \$${prefix}WLAN_NWID)"
	496	if [ -n "$(eval echo \$${prefix}WLAN_FREQ)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ] ; then
	497	iwconfig ${device} freq "$(eval echo \$${prefix}WLAN_FREQ)"
	498	elif [ -n "$(eval echo \$${prefix}WLAN_CHANNEL)" -a "$(eval echo \$${prefix}${WLAN_MODE})" != "Managed" ]; then
	499	iwconfig ${device} channel "$(eval echo \$${prefix}WLAN_CHANNEL)"
	500	fi
	501	[ -n "$(eval echo \$${prefix}WLAN_SENS)" ] && \
	502	iwconfig ${device} sens "$(eval echo \$${prefix}WLAN_SENS)"
	503	[ -n "$(eval echo \$${prefix}WLAN_AP)" ] && \
	504	iwconfig ${device} ap "$(eval echo \$${prefix}WLAN_AP)"
	505	[ -n "$(eval echo \$${prefix}WLAN_BITRATE)" ] && \
	506	iwconfig ${device} rate "$(eval echo \$${prefix}WLAN_BITRATE)"
	507	[ -n "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)" ] && \
	508	iwconfig ${device} rts "$(eval echo \$${prefix}WLAN_RTS_THRESHOLD)"
	509	[ -n "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)" ] && \
	510	iwconfig ${device} frag "$(eval echo \$${prefix}WLAN_FRAGMENTATION_THRESHOLD)"
	511	if [ -n "$(eval echo \$${prefix}WLAN_KEY)" ]; then
	512	iwconfig ${device} key "$(eval echo \$${prefix}WLAN_KEY)"
	513	[ -n "$(eval echo \$${prefix}WLAN_ENCRYPTION)" ] && \
	514	iwconfig ${device} key "$(eval echo \$${prefix}WLAN_ENCRYPTION)"
	515	fi
	516	if is_no "$(eval echo \$${prefix}WLAN_ENCRYPTION)"; then
	517	iwconfig ${device} key off
	518	fi
	519	[ -n "$(eval echo \$${prefix}WLAN_POWER)" ] && \
f3f7385d	520	iwconfig ${device} power "$(eval echo \$${prefix}WLAN_POWER)"
5e6dfc29	521	[ -n "$(eval echo \$${prefix}WLAN_TXPOWER)" ] && \
f3f7385d	522	iwconfig ${device} txpower "$(eval echo \$${prefix}WLAN_TXPOWER)"
5e6dfc29	523	[ -n "$(eval echo \$${prefix}WLAN_RETRY)" ] && \
f3f7385d	524	iwconfig ${device} retry "$(eval echo \$${prefix}WLAN_RETRY)"
5e6dfc29 JR	525	[ -n "$(eval echo \$${prefix}WLAN_NWID)" ] && iwconfig ${device} \
5e6dfc29 JR	526	nwid "$(eval echo \$${prefix}WLAN_NWID)"
2ae29436	527
9a0f7d04	528	# essid should be last due to network rescanning by wlan devices
5e6dfc29 JR	529	[ -n "$(eval echo \$${prefix}WLAN_ESSID)" ] && iwconfig ${device} \
5e6dfc29 JR	530	essid "$(eval echo \$${prefix}WLAN_ESSID)"
a1ac348c AM	531
	532	if is_yes "$(eval echo \$${prefix}WLAN_COMMIT)"; then
	533	iwconfig ${device} commit
9a0f7d04	534	fi
2ae29436 AM	535	}
2ae29436 AM	536
0336ea13 AM	537	check_mii_tool ()
0336ea13 AM	538	{
5e6dfc29 JR	539	[ -x /sbin/mii-tool ] \|\| return 2
	540	output=$(LC_ALL=C mii-tool $1 2>&1)
	541	echo $output \| LC_ALL=C grep -q "link ok" && return 1
	542	echo $output \| LC_ALL=C grep -q "no link" && return 0 \|\| return 2
0336ea13 AM	543	}
	544
	545	check_ethtool ()
	546	{
5e6dfc29 JR	547	[ -x /sbin/ethtool ] \|\| return 2
	548	output=$(LC_ALL=C ethtool $1 2>&1)
	549	echo $output \| LC_ALL=C grep -q "Link detected: yes" && return 1
	550	echo $output \| LC_ALL=C grep -q "Link detected: no" && return 0 \|\| return 2
0336ea13 AM	551	}
0336ea13 AM	552
1b85f830 AM	553	check_iwconfig ()
	554	{
	555	[ -x /sbin/iwconfig ] \|\| return 2
	556	output=$(LC_ALL=C iwconfig $1 2>&1)
	557	echo $output \| LC_ALL=C grep -q "radio off" && return 0 \|\| return 2
	558	}
0336ea13 AM	559
	560	check_link_down ()
	561	{
1b85f830	562	if [ -x /sbin/mii-tool -o -x /sbin/ethtool -o -x /sbin/iwconfig ]; then
5e6dfc29 JR	563	if ! LC_ALL=C ip link show dev $1 2>/dev/null\| grep -q UP ; then
	564	ip link set dev $1 up >/dev/null 2>&1
	565	timeout=0
	566	while [ $timeout -le 10 ]; do
	567	check_mii_tool $1
	568	m=$?
	569	check_ethtool $1
	570	e=$?
1b85f830 AM	571	check_iwconfig $1
1b85f830 AM	572	i=$?
5e6dfc29 JR	573	if [ $m -eq 1 ] \|\| [ $e -eq 1 ] ; then
	574	return 1
	575	fi
1b85f830	576	if [ $m -eq 2 ] && [ $e -eq 2 ] && [ $i -eq 2 ]; then
5e6dfc29 JR	577	return 1
	578	fi
	579	usleep 500000
	580	timeout=$((timeout+1))
	581	done
	582	return 0
74a7f2e4	583	fi
74a7f2e4	584	fi
5e6dfc29	585	return 1
0336ea13	586	}
2ae29436	587
e9e86175	588	# This must be last line !
5e6dfc29	589	# vi:syntax=sh