- first up bridge, next tunnels (tunnels can be on bridges)

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

#!/bin/sh
#
#	$Id$
#
PATH=/sbin:/usr/sbin:/bin:/usr/bin

. /etc/sysconfig/network
. /etc/rc.d/init.d/functions
. /etc/sysconfig/network-scripts/functions.network

# Will be removed in the future
if is_yes "$NETWORKING" ; then
    if [ -z "$IPV4_NETWORKING" ] ; then
	echo "NETWORKING is set to YES, but IPV4_NETWORKING is empty!"
	echo "Please upgrade your config"
	echo "Assuming you want IPv4 networking"
	IPV4_NETWORKING=yes
	export IPV4_NETWORKING
    fi
fi

need_hostname

# device name must be ifcfg-somename
DEV=$1

[ -z "$DEV" ] && {
    nls "Usage: %s <device name>" "ifup" >&2
    exit 1
}

if [ `id -u` != 0 ]; then
    if [ -x /sbin/usernetctl ]; then
	exec /sbin/usernetctl $DEV up
    fi
    nls "Users cannot control this device." >&2
    exit 1
fi

if [ -f "/etc/sysconfig/interfaces/ifcfg-$DEV" ] ; then
    CONFIG="/etc/sysconfig/interfaces/ifcfg-$DEV"
else
    CONFIG="$DEV"
fi

source_config

if [ "foo$2" = "fooboot" ] && is_no "${ONBOOT}"; then
    exit
fi

if [ "foo$2" = "foohotplug" ] && ! is_yes "${HOTPLUG}"; then
    exit
fi

IPSETUP=no

# set all major variables
setup_ip_param

OTHERSCRIPT="/etc/sysconfig/network-scripts/ifup-${DEVICETYPE}"

if [ -x "$OTHERSCRIPT" ]; then
    if is_yes "$DEFAULTHANDLING" ; then HANDLING=1 ; fi
    if [ "$HANDLING" = "0" ]; then
    	exec $OTHERSCRIPT $CONFIG $2
    elif [ "$HANDLING" = "1" ]; then
        $OTHERSCRIPT $CONFIG $2
    fi
fi

# is this device available? (this catches PCMCIA devices for us)
if ! (/sbin/ip link set multicast ${MULTICAST} dev ${DEVICE} > /dev/null 2>&1); then
    nls "Delaying %s initialization" ${DEVICE}
    exit 1
fi

if is_yes "$SLAVE" && [ -n "$MASTER" -a -x /sbin/ifenslave ]; then
    RFLAG="" && is_yes "${RECIEVE-ONLY}" && RFLAG="-r"

    ip link set ${DEVICE} down
    nls "Enslaving %s to %s" "$DEVICE" "$MASTER"
    ifenslave $RFLAG "$MASTER" "$DEVICE"

    exit 0
fi

if [ -n "$MACADDR" ]; then
    ip link set ${DEVICE} address ${MACADDR}
fi

ip link set ${DEVICE} multicast ${MULTICAST} ${ARP} down

if [ -n "$MTU" ]; then
    ip link set ${DEVICE} mtu ${MTU}
fi

if is_yes "${IPV6_NETWORKING}" && is_yes "${IPV6_DISABLE_AUTOCONF}"; then
    run_cmd "Disabling IPv6 autoconfiguration" sysctl -w net.ipv6.conf.${DEVICE}.autoconf=0
fi

if is_wireless_device "${DEVICE}"; then
    wireless_param ${DEVICE}
fi
	
if [ "$HANDLING" = "2" ]; then
    exit 0
fi

if [ -n "$BOOTPROTO" -a "$BOOTPROTO" != "none" -a "$BOOTPROTO" != "static" ]; then

    if is_yes "$IPV4_NETWORKING"; then
	if [ "$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

	DHCP_ARGS=
	if [ -n "$DHCP_CLIENT" ]; then
	    case $(basename $DHCP_CLIENT) in
		pump)
		[ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
		DHCP_ARGS="$DHCP_ARGS -i $DEVICE"
		;;
		dhcpcd)
		[ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-h $DHCP_HOSTNAME"
		DHCP_ARGS="$DHCP_ARGS $DEVICE"
		;;
		dhcpxd)
		[ -n "$DHCP_HOSTNAME" ] && DHCP_ARGS="-H $DHCP_HOSTNAME"
		DHCP_ARGS="$DHCP_ARGS $DEVICE"
		;;
		dhclient)
		# Can't specify a host with dhclient ?
		DHCP_ARGS="$DEVICE"
		;;
	    esac
	fi
	DHCP_ARGS="$DHCP_OPTIONS $DHCP_ARGS"

	if check_link_down ${DEVICE}; then
	    run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "$(basename $DHCP_CLIENT)")" /bin/false
	    nls '%s: Check cable?' "$DEVICE"
	    exit 1
	fi

	if ! run_cmd "$(nls 'Determining IP information for %s (%s)' "$DEVICE" "$(basename $DHCP_CLIENT)")" $DHCP_CLIENT $DHCP_ARGS ; then
	    exit 1
	fi

	# give time for determining IP information
	check_device_down && sleep 1 && check_device_down && sleep 3
	check_device_down && ip link set ${DEVICE} up
    fi

else

    # IPv4 in use ?
    if is_yes "$IPV4_NETWORKING" && [ -n "${IP4ADDR}" ] ; then
	# If broadcast is missing then autocalculate it
	if ! (echo $IP4ADDROPT | egrep -q "brd|broadcast"); then
	    IP4ADDROPT="brd + ${IP4ADDROPT}"
	fi

	if [ -n "$REMIP" ]; then
	    ip addr add ${IP4ADDR} peer ${REMIP} dev ${DEVICE} ${IP4ADDROPT}
	else
	    ip addr add ${IP4ADDR} dev ${DEVICE} ${IP4ADDROPT}
	fi
    fi

    # Set device up
    ip link set ${DEVICE} up

    # IPv6 in use ?
    if is_yes "$IPV6_NETWORKING" && [ -n "${IP6ADDR}" ] ; then
    	ip addr add ${IP6ADDR} dev ${DEVICE} ${IP6ADDROPT}
    fi

    # IPv4/6 gateways and default routes
    setup_ip_gw_ro
fi

# device have to have ip address set before
if is_yes "$PROXYARP"; then
    run_cmd "$(nls 'Enabling proxy ARP on %s' "${DEVICE}")" sysctl -w net.ipv4.conf.${DEVICE}.proxy_arp=1
fi

if [ "$HANDLING" = "3" ]; then
    exit 0
fi

if is_yes "$IPX"; then
    /etc/sysconfig/network-scripts/ifup-ipx $DEVICE
fi

if [ "$HANDLING" = "4" ]; then
    exit 0
fi

exec /etc/sysconfig/network-scripts/ifup-post $CONFIG

# This must be last line !
# vi:syntax=sh:tw=78:ts=8:sw=4