usr/src/cmd/svc/milestone/net-physical - illumos-gate - Gitiles

 #!/sbin/sh
 #
 # CDDL HEADER START
 #
 # The contents of this file are subject to the terms of the
 # Common Development and Distribution License (the "License").
 # You may not use this file except in compliance with the License.
 #
 # You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 # or http://www.opensolaris.org/os/licensing.
 # See the License for the specific language governing permissions
 # and limitations under the License.
 #
 # When distributing Covered Code, include this CDDL HEADER in each
 # file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 # If applicable, add the following below this CDDL HEADER, with the
 # fields enclosed by brackets "[]" replaced with your own identifying
 # information: Portions Copyright [yyyy] [name of copyright owner]
 #
 # CDDL HEADER END
 #
 #
 # Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
 # Use is subject to license terms.
 #
 # Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
 # All rights reserved.
 #
 #
 # ident	"%Z%%M%	%I%	%E% SMI"

 . /lib/svc/share/smf_include.sh
 . /lib/svc/share/net_include.sh

 #
 # In a shared-IP zone we need this service to be up, but all of the work
 # it tries to do is irrelevant (and will actually lead to the service
 # failing if we try to do it), so just bail out.
 # In the global zone and exclusive-IP zones we proceed.
 #
 smf_configure_ip || exit $SMF_EXIT_OK

 # Print warnings to console
 warn_failed_ifs() {
 	echo "Failed to $1 interface(s): $2" >/dev/msglog
 }

 # Make sure that the libraries essential to this stage of booting can be found.
 LD_LIBRARY_PATH=/lib; export LD_LIBRARY_PATH

 #
 # Cause ifconfig to not automatically start in.mpathd when IPMP groups are
 # configured.  This is not strictly necessary but makes it so that in.mpathd
 # will always be started explicitly from /etc/init.d/inetinit, when we're
 # sure that /usr is mounted.
 #
 SUNW_NO_MPATHD=; export SUNW_NO_MPATHD

 smf_netstrategy

 if smf_is_globalzone; then
 	#
 	# Bring up link aggregations and initialize security objects.
 	# Note that link property initialization is deferred until after
 	# IP interfaces are plumbed to ensure that the links will not
 	# be unloaded (and the property settings lost).
 	#
 	/sbin/dladm up-aggr
 	/sbin/dladm init-secobj
 fi

 #
 # If the system was net booted by DHCP, hand DHCP management off to the
 # DHCP agent (ifconfig communicates to the DHCP agent through the
 # loopback interface).
 #
 if [ -n "$_INIT_NET_IF" -a "$_INIT_NET_STRATEGY" = "dhcp" ]; then
 	/sbin/dhcpagent -a
 fi

 #
 # The network initialization is done early to support diskless and
 # dataless configurations.  For IPv4 interfaces that were configured by
 # the kernel (e.g.  those on diskless machines) and not configured by
 # DHCP, reset the netmask using the local "/etc/netmasks" file if one
 # exists, and then reset the broadcast address based on the netmask.
 #
 /sbin/ifconfig -auD4 netmask + broadcast +

 #
 # All the IPv4 and IPv6 interfaces are plumbed before doing any
 # interface configuration.  This prevents errors from plumb failures
 # getting mixed in with the configured interface lists that the script
 # outputs.
 #

 #
 # Get the list of IPv4 interfaces to configure by breaking
 # /etc/hostname.* into separate args by using "." as a shell separator
 # character.
 #
 interface_names="`echo /etc/hostname.*[0-9] 2>/dev/null`"
 if [ "$interface_names" != "/etc/hostname.*[0-9]" ]; then
 	ORIGIFS="$IFS"
 	IFS="$IFS."
 	set -- $interface_names
 	IFS="$ORIGIFS"
 	while [ $# -ge 2 ]; do
 		shift
 		if [ "$1" = "xx0" ]; then
 			#
 			# For some unknown historical reason the xx0
 			# ifname is ignored.
 			#
 			shift
 			continue
 		fi
 		if [ $# -gt 1 -a "$2" != "/etc/hostname" ]; then
 			while [ $# -gt 1 -a "$1" != "/etc/hostname" ]; do
 				shift
 			done
 		else
 			inet_list="$inet_list $1"
 			shift
 		fi
 	done
 fi

 #
 # Get the list of IPv6 interfaces to configure by breaking
 # /etc/hostname6.* into separate args by using "." as a shell separator
 # character.
 #
 interface_names="`echo /etc/hostname6.*[0-9] 2>/dev/null`"
 if [ "$interface_names" != "/etc/hostname6.*[0-9]" ]; then
 	ORIGIFS="$IFS"
 	IFS="$IFS."
 	set -- $interface_names
 	IFS="$ORIGIFS"
 	while [ $# -ge 2 ]; do
 		shift
 		if [ $# -gt 1 -a "$2" != "/etc/hostname6" ]; then
 			while [ $# -gt 1 -a "$1" != "/etc/hostname6" ]; do
 				shift
 			done
 		else
 			inet6_list="$inet6_list $1"
 			shift
 		fi
 	done
 fi


 #
 # Step through the IPv4 interface list and try to plumb every interface.
 # Generate list of plumbed and failed IPv4 interfaces.
 #
 if [ -n "$inet_list" ]; then
 	set -- $inet_list
 	while [ $# -gt 0 ]; do
 		/sbin/ifconfig $1 plumb
 		if /sbin/ifconfig $1 inet >/dev/null 2>&1; then
 			inet_plumbed="$inet_plumbed $1"
 		else
 			inet_failed="$inet_failed $1"
 		fi
 		shift
 	done
 	[ -n "$inet_failed" ] && warn_failed_ifs "plumb IPv4" $inet_failed
 fi

 # Run autoconf to connect to a WLAN if the interface is a wireless one
 if [ -x /sbin/wificonfig -a -n "$inet_plumbed" ]; then
 	set -- $inet_plumbed
 	while [ $# -gt 0 ]; do
 			if [ -r /dev/wifi/$1 ]; then
 				/sbin/wificonfig -i $1 startconf >/dev/null
 			fi
 		shift
 	done
 fi

 #
 # Step through the IPv6 interface list and plumb every interface.
 # Generate list of plumbed and failed IPv6 interfaces.  Each plumbed
 # interface will be brought up later, after processing any contents of
 # the /etc/hostname6.* file.
 #
 if [ -n "$inet6_list" ]; then
 	set -- $inet6_list
 	while [ $# -gt 0 ]; do
 		/sbin/ifconfig $1 inet6 plumb
 		if /sbin/ifconfig $1 inet6 >/dev/null 2>&1; then
 			inet6_plumbed="$inet6_plumbed $1"
 		else
 			inet6_failed="$inet6_failed $1"
 		fi
 		shift
 	done
 	[ -n "$inet6_failed" ] && warn_failed_ifs "plumb IPv6" $inet6_failed
 fi

 if smf_is_globalzone; then
 	#
 	# Unfortunately, if a driver unloads and then is subsequently reloaded,
 	# no mechanism currently exists to restore the properties of its
 	# associated links.  Hence, we wait until after interfaces have been
 	# plumbed (above) to initialize link properties.
 	#
 	/sbin/dladm init-linkprop
 fi

 #
 # Process the /etc/hostname.* files of plumbed IPv4 interfaces.  If an
 # /etc/hostname file is not present or is empty, the ifconfig auto-dhcp
 # / auto-revarp command will attempt to set the address, later.
 #
 # If /etc/hostname.lo0 exists the loop below will do additional
 # configuration of lo0.
 #
 if [ -n "$inet_plumbed" ]; then
 	i4s_fail=
 	echo "configuring IPv4 interfaces:\c"
 	set -- $inet_plumbed
 	while [ $# -gt 0 ]; do
 		inet_process_hostname /sbin/ifconfig $1 inet \
 		    </etc/hostname.$1 >/dev/null
 		[ $? != 0 ] && i4s_fail="$i4s_fail $1"
 		echo " $1\c"
 		shift
 	done
 	echo "."
 	[ -n "$i4s_fail" ] && warn_failed_ifs "configure IPv4" $i4s_fail
 fi

 #
 # Process the /etc/hostname6.* files of plumbed IPv6 interfaces.  After
 # processing the hostname6 file, bring the interface up.  If
 # /etc/hostname6.lo0 exists the loop below will do additional
 # configuration of lo0.
 #
 if [ -n "$inet6_plumbed" ]; then
 	i6_fail=
 	echo "configuring IPv6 interfaces:\c"
 	set -- $inet6_plumbed
 	while [ $# -gt 0 ]; do
 		inet6_process_hostname /sbin/ifconfig $1 inet6 \
 		    </etc/hostname6.$1 >/dev/null &&
 		    /sbin/ifconfig $1 inet6 up
 		[ $? != 0 ] && i6_fail="$i6_fail $1"
 		echo " $1\c"
 		shift
 	done
 	echo "."
 	[ -n "$i6_fail" ] && warn_failed_ifs "configure IPv6" $i6_fail
 fi

 # Run DHCP if requested. Skip boot-configured interface.
 interface_names="`echo /etc/dhcp.*[0-9] 2>/dev/null`"
 if [ "$interface_names" != '/etc/dhcp.*[0-9]' ]; then
 	#
 	# First find the primary interface. Default to the first
 	# interface if not specified. First primary interface found
 	# "wins". Use care not to "reconfigure" a net-booted interface
 	# configured using DHCP. Run through the list of interfaces
 	# again, this time trying DHCP.
 	#
 	i4d_fail=
 	firstif=
 	primary=
 	ORIGIFS="$IFS"
 	IFS="${IFS}."
 	set -- $interface_names

 	while [ $# -ge 2 ]; do
 		shift
 		[ -z "$firstif" ] && firstif=$1

 		for i in `shcat /etc/dhcp\.$1`; do
 			if [ "$i" = primary ]; then
 				primary=$1
 				break
 			fi
 		done

 		[ -n "$primary" ] && break
 		shift
 	done

 	[ -z "$primary" ] && primary="$firstif"
 	cmdline=`shcat /etc/dhcp\.${primary}`

 	if [ "$_INIT_NET_IF" != "$primary" ]; then
 		echo "starting DHCP on primary interface $primary"
 		/sbin/ifconfig $primary auto-dhcp primary $cmdline
 		# Exit code 4 means ifconfig timed out waiting for dhcpagent
 		[ $? != 0 ]  && [ $? != 4 ] && i4d_fail="$i4d_fail $primary"
 	fi

 	set -- $interface_names

 	while [ $# -ge 2 ]; do
 		shift
 		cmdline=`shcat /etc/dhcp\.$1`
 		if [ "$1" != "$primary" -a \
 			"$1" != "$_INIT_NET_IF"  ]; then
 			echo "starting DHCP on interface $1"
 			/sbin/ifconfig $1 dhcp start wait 0 $cmdline
 			# Exit code can't be timeout when wait is 0
 			[ $? != 0 ] && i4d_fail="$i4d_fail $1"
 		fi
 		shift
 	done
 	IFS="$ORIGIFS"
 	unset ORIGIFS
 	[ -n "$i4d_fail" ] && warn_failed_ifs "configure IPv4 DHCP" $i4d_fail
 fi

 # In order to avoid bringing up the interfaces that have
 # intentionally been left down, perform RARP only if the system
 # has no configured hostname in /etc/nodename
 hostname="`shcat /etc/nodename 2>/dev/null`"
 if [ "$_INIT_NET_STRATEGY" = "rarp" -o -z "$hostname" ]; then
 	/sbin/ifconfig -adD4 auto-revarp netmask + broadcast + up
 fi

 #
 # Process IPv4 and IPv6 interfaces that failed to plumb.  Find an
 # alternative interface to host the addresses.
 #
 [ -n "$inet_failed" ] && move_addresses inet

 [ -n "$inet6_failed" ] && move_addresses inet6

 #
 # If the /etc/defaultrouter file exists, process it now so that the next
 # stage of booting will have access to NFS.
 #
 if [ -f /etc/defaultrouter ]; then
 	while read router rubbish; do
 		case "$router" in
 			'#'* | '') ;;	#  Ignore comments, empty lines
 			*)	/sbin/route -n add default -gateway $router ;;
 		esac
 	done </etc/defaultrouter
 fi

 #
 # We tell smf this service is online if any of the following is true:
 # - no interfaces were configured for plumbing and no DHCP failures
 # - any non-loopback IPv4 interfaces are up and have a non-zero address
 # - there are any DHCP interfaces started
 # - any non-loopback IPv6 interfaces are up
 #
 # If we weren't asked to configure any interfaces, exit
 if [ -z "$inet_list" ] && [ -z "$inet6_list" ]; then
 	# Config error if DHCP was attempted without plumbed interfaces
 	[ -n "$i4d_fail" ] && exit $SMF_EXIT_ERR_CONFIG
 	exit $SMF_EXIT_OK
 fi

 # Any non-loopback IPv4 interfaces with usable addresses up?
 if [ -n "`/sbin/ifconfig -a4u`" ]; then
     	/sbin/ifconfig -a4u | while read intf addr rest; do
 		[ $intf = inet ] && [ $addr != 127.0.0.1 ] &&
 		[ $addr != 0.0.0.0 ] && exit 0
 	done && exit $SMF_EXIT_OK
 fi

 # Any DHCP interfaces started?
 [ -n "`/sbin/ifconfig -a4 dhcp status 2>/dev/null`" ] && exit $SMF_EXIT_OK

 # Any non-loopback IPv6 interfaces up?
 if [ -n "`/sbin/ifconfig -au6`" ]; then
 	/sbin/ifconfig -au6 | while read intf addr rest; do
 		[ $intf = inet6 ] && [ $addr != ::1/128 ] && exit 0
 	done && exit $SMF_EXIT_OK
 fi

 # This service was supposed to configure something yet didn't.  Exit
 # with config error.
 exit $SMF_EXIT_ERR_CONFIG
	#!/sbin/sh
	#
	# CDDL HEADER START
	#
	# The contents of this file are subject to the terms of the
	# Common Development and Distribution License (the "License").
	# You may not use this file except in compliance with the License.
	#
	# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
	# or http://www.opensolaris.org/os/licensing.
	# See the License for the specific language governing permissions
	# and limitations under the License.
	#
	# When distributing Covered Code, include this CDDL HEADER in each
	# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
	# If applicable, add the following below this CDDL HEADER, with the
	# fields enclosed by brackets "[]" replaced with your own identifying
	# information: Portions Copyright [yyyy] [name of copyright owner]
	#
	# CDDL HEADER END
	#
	#
	# Copyright 2007 Sun Microsystems, Inc. All rights reserved.
	# Use is subject to license terms.
	#
	# Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
	# All rights reserved.
	#
	#
	# ident "%Z%%M% %I% %E% SMI"

	. /lib/svc/share/smf_include.sh
	. /lib/svc/share/net_include.sh

	#
	# In a shared-IP zone we need this service to be up, but all of the work
	# it tries to do is irrelevant (and will actually lead to the service
	# failing if we try to do it), so just bail out.
	# In the global zone and exclusive-IP zones we proceed.
	#
	smf_configure_ip \|\| exit $SMF_EXIT_OK

	# Print warnings to console
	warn_failed_ifs() {
	echo "Failed to $1 interface(s): $2" >/dev/msglog
	}

	# Make sure that the libraries essential to this stage of booting can be found.
	LD_LIBRARY_PATH=/lib; export LD_LIBRARY_PATH

	#
	# Cause ifconfig to not automatically start in.mpathd when IPMP groups are
	# configured. This is not strictly necessary but makes it so that in.mpathd
	# will always be started explicitly from /etc/init.d/inetinit, when we're
	# sure that /usr is mounted.
	#
	SUNW_NO_MPATHD=; export SUNW_NO_MPATHD

	smf_netstrategy

	if smf_is_globalzone; then
	#
	# Bring up link aggregations and initialize security objects.
	# Note that link property initialization is deferred until after
	# IP interfaces are plumbed to ensure that the links will not
	# be unloaded (and the property settings lost).
	#
	/sbin/dladm up-aggr
	/sbin/dladm init-secobj
	fi

	#
	# If the system was net booted by DHCP, hand DHCP management off to the
	# DHCP agent (ifconfig communicates to the DHCP agent through the
	# loopback interface).
	#
	if [ -n "$_INIT_NET_IF" -a "$_INIT_NET_STRATEGY" = "dhcp" ]; then
	/sbin/dhcpagent -a
	fi

	#
	# The network initialization is done early to support diskless and
	# dataless configurations. For IPv4 interfaces that were configured by
	# the kernel (e.g. those on diskless machines) and not configured by
	# DHCP, reset the netmask using the local "/etc/netmasks" file if one
	# exists, and then reset the broadcast address based on the netmask.
	#
	/sbin/ifconfig -auD4 netmask + broadcast +

	#
	# All the IPv4 and IPv6 interfaces are plumbed before doing any
	# interface configuration. This prevents errors from plumb failures
	# getting mixed in with the configured interface lists that the script
	# outputs.
	#

	#
	# Get the list of IPv4 interfaces to configure by breaking
	# /etc/hostname.* into separate args by using "." as a shell separator
	# character.
	#
	interface_names="`echo /etc/hostname.*[0-9] 2>/dev/null`"
	if [ "$interface_names" != "/etc/hostname.*[0-9]" ]; then
	ORIGIFS="$IFS"
	IFS="$IFS."
	set -- $interface_names
	IFS="$ORIGIFS"
	while [ $# -ge 2 ]; do
	shift
	if [ "$1" = "xx0" ]; then
	#
	# For some unknown historical reason the xx0
	# ifname is ignored.
	#
	shift
	continue
	fi
	if [ $# -gt 1 -a "$2" != "/etc/hostname" ]; then
	while [ $# -gt 1 -a "$1" != "/etc/hostname" ]; do
	shift
	done
	else
	inet_list="$inet_list $1"
	shift
	fi
	done
	fi

	#
	# Get the list of IPv6 interfaces to configure by breaking
	# /etc/hostname6.* into separate args by using "." as a shell separator
	# character.
	#
	interface_names="`echo /etc/hostname6.*[0-9] 2>/dev/null`"
	if [ "$interface_names" != "/etc/hostname6.*[0-9]" ]; then
	ORIGIFS="$IFS"
	IFS="$IFS."
	set -- $interface_names
	IFS="$ORIGIFS"
	while [ $# -ge 2 ]; do
	shift
	if [ $# -gt 1 -a "$2" != "/etc/hostname6" ]; then
	while [ $# -gt 1 -a "$1" != "/etc/hostname6" ]; do
	shift
	done
	else
	inet6_list="$inet6_list $1"
	shift
	fi
	done
	fi


	#
	# Step through the IPv4 interface list and try to plumb every interface.
	# Generate list of plumbed and failed IPv4 interfaces.
	#
	if [ -n "$inet_list" ]; then
	set -- $inet_list
	while [ $# -gt 0 ]; do
	/sbin/ifconfig $1 plumb
	if /sbin/ifconfig $1 inet >/dev/null 2>&1; then
	inet_plumbed="$inet_plumbed $1"
	else
	inet_failed="$inet_failed $1"
	fi
	shift
	done
	[ -n "$inet_failed" ] && warn_failed_ifs "plumb IPv4" $inet_failed
	fi

	# Run autoconf to connect to a WLAN if the interface is a wireless one
	if [ -x /sbin/wificonfig -a -n "$inet_plumbed" ]; then
	set -- $inet_plumbed
	while [ $# -gt 0 ]; do
	if [ -r /dev/wifi/$1 ]; then
	/sbin/wificonfig -i $1 startconf >/dev/null
	fi
	shift
	done
	fi

	#
	# Step through the IPv6 interface list and plumb every interface.
	# Generate list of plumbed and failed IPv6 interfaces. Each plumbed
	# interface will be brought up later, after processing any contents of
	# the /etc/hostname6.* file.
	#
	if [ -n "$inet6_list" ]; then
	set -- $inet6_list
	while [ $# -gt 0 ]; do
	/sbin/ifconfig $1 inet6 plumb
	if /sbin/ifconfig $1 inet6 >/dev/null 2>&1; then
	inet6_plumbed="$inet6_plumbed $1"
	else
	inet6_failed="$inet6_failed $1"
	fi
	shift
	done
	[ -n "$inet6_failed" ] && warn_failed_ifs "plumb IPv6" $inet6_failed
	fi

	if smf_is_globalzone; then
	#
	# Unfortunately, if a driver unloads and then is subsequently reloaded,
	# no mechanism currently exists to restore the properties of its
	# associated links. Hence, we wait until after interfaces have been
	# plumbed (above) to initialize link properties.
	#
	/sbin/dladm init-linkprop
	fi

	#
	# Process the /etc/hostname.* files of plumbed IPv4 interfaces. If an
	# /etc/hostname file is not present or is empty, the ifconfig auto-dhcp
	# / auto-revarp command will attempt to set the address, later.
	#
	# If /etc/hostname.lo0 exists the loop below will do additional
	# configuration of lo0.
	#
	if [ -n "$inet_plumbed" ]; then
	i4s_fail=
	echo "configuring IPv4 interfaces:\c"
	set -- $inet_plumbed
	while [ $# -gt 0 ]; do
	inet_process_hostname /sbin/ifconfig $1 inet \
	</etc/hostname.$1 >/dev/null
	[ $? != 0 ] && i4s_fail="$i4s_fail $1"
	echo " $1\c"
	shift
	done
	echo "."
	[ -n "$i4s_fail" ] && warn_failed_ifs "configure IPv4" $i4s_fail
	fi

	#
	# Process the /etc/hostname6.* files of plumbed IPv6 interfaces. After
	# processing the hostname6 file, bring the interface up. If
	# /etc/hostname6.lo0 exists the loop below will do additional
	# configuration of lo0.
	#
	if [ -n "$inet6_plumbed" ]; then
	i6_fail=
	echo "configuring IPv6 interfaces:\c"
	set -- $inet6_plumbed
	while [ $# -gt 0 ]; do
	inet6_process_hostname /sbin/ifconfig $1 inet6 \
	</etc/hostname6.$1 >/dev/null &&
	/sbin/ifconfig $1 inet6 up
	[ $? != 0 ] && i6_fail="$i6_fail $1"
	echo " $1\c"
	shift
	done
	echo "."
	[ -n "$i6_fail" ] && warn_failed_ifs "configure IPv6" $i6_fail
	fi

	# Run DHCP if requested. Skip boot-configured interface.
	interface_names="`echo /etc/dhcp.*[0-9] 2>/dev/null`"
	if [ "$interface_names" != '/etc/dhcp.*[0-9]' ]; then
	#
	# First find the primary interface. Default to the first
	# interface if not specified. First primary interface found
	# "wins". Use care not to "reconfigure" a net-booted interface
	# configured using DHCP. Run through the list of interfaces
	# again, this time trying DHCP.
	#
	i4d_fail=
	firstif=
	primary=
	ORIGIFS="$IFS"
	IFS="${IFS}."
	set -- $interface_names

	while [ $# -ge 2 ]; do
	shift
	[ -z "$firstif" ] && firstif=$1

	for i in `shcat /etc/dhcp\.$1`; do
	if [ "$i" = primary ]; then
	primary=$1
	break
	fi
	done

	[ -n "$primary" ] && break
	shift
	done

	[ -z "$primary" ] && primary="$firstif"
	cmdline=`shcat /etc/dhcp\.${primary}`

	if [ "$_INIT_NET_IF" != "$primary" ]; then
	echo "starting DHCP on primary interface $primary"
	/sbin/ifconfig $primary auto-dhcp primary $cmdline
	# Exit code 4 means ifconfig timed out waiting for dhcpagent
	[ $? != 0 ] && [ $? != 4 ] && i4d_fail="$i4d_fail $primary"
	fi

	set -- $interface_names

	while [ $# -ge 2 ]; do
	shift
	cmdline=`shcat /etc/dhcp\.$1`
	if [ "$1" != "$primary" -a \
	"$1" != "$_INIT_NET_IF" ]; then
	echo "starting DHCP on interface $1"
	/sbin/ifconfig $1 dhcp start wait 0 $cmdline
	# Exit code can't be timeout when wait is 0
	[ $? != 0 ] && i4d_fail="$i4d_fail $1"
	fi
	shift
	done
	IFS="$ORIGIFS"
	unset ORIGIFS
	[ -n "$i4d_fail" ] && warn_failed_ifs "configure IPv4 DHCP" $i4d_fail
	fi

	# In order to avoid bringing up the interfaces that have
	# intentionally been left down, perform RARP only if the system
	# has no configured hostname in /etc/nodename
	hostname="`shcat /etc/nodename 2>/dev/null`"
	if [ "$_INIT_NET_STRATEGY" = "rarp" -o -z "$hostname" ]; then
	/sbin/ifconfig -adD4 auto-revarp netmask + broadcast + up
	fi

	#
	# Process IPv4 and IPv6 interfaces that failed to plumb. Find an
	# alternative interface to host the addresses.
	#
	[ -n "$inet_failed" ] && move_addresses inet

	[ -n "$inet6_failed" ] && move_addresses inet6

	#
	# If the /etc/defaultrouter file exists, process it now so that the next
	# stage of booting will have access to NFS.
	#
	if [ -f /etc/defaultrouter ]; then
	while read router rubbish; do
	case "$router" in
	'#'* \| '') ;; # Ignore comments, empty lines
	*) /sbin/route -n add default -gateway $router ;;
	esac
	done </etc/defaultrouter
	fi

	#
	# We tell smf this service is online if any of the following is true:
	# - no interfaces were configured for plumbing and no DHCP failures
	# - any non-loopback IPv4 interfaces are up and have a non-zero address
	# - there are any DHCP interfaces started
	# - any non-loopback IPv6 interfaces are up
	#
	# If we weren't asked to configure any interfaces, exit
	if [ -z "$inet_list" ] && [ -z "$inet6_list" ]; then
	# Config error if DHCP was attempted without plumbed interfaces
	[ -n "$i4d_fail" ] && exit $SMF_EXIT_ERR_CONFIG
	exit $SMF_EXIT_OK
	fi

	# Any non-loopback IPv4 interfaces with usable addresses up?
	if [ -n "`/sbin/ifconfig -a4u`" ]; then
	/sbin/ifconfig -a4u \| while read intf addr rest; do
	[ $intf = inet ] && [ $addr != 127.0.0.1 ] &&
	[ $addr != 0.0.0.0 ] && exit 0
	done && exit $SMF_EXIT_OK
	fi

	# Any DHCP interfaces started?
	[ -n "`/sbin/ifconfig -a4 dhcp status 2>/dev/null`" ] && exit $SMF_EXIT_OK

	# Any non-loopback IPv6 interfaces up?
	if [ -n "`/sbin/ifconfig -au6`" ]; then
	/sbin/ifconfig -au6 \| while read intf addr rest; do
	[ $intf = inet6 ] && [ $addr != ::1/128 ] && exit 0
	done && exit $SMF_EXIT_OK
	fi

	# This service was supposed to configure something yet didn't. Exit
	# with config error.
	exit $SMF_EXIT_ERR_CONFIG