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#!/usr/sbin/sh
#
# Copyright (c) 1999, 2020, Oracle and/or its affiliates. All rights reserved.
#
# Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T.
# All rights reserved.
#

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

#
# Version history:
#
# There are two version properties in svc:/network/physical:default.
# upgrade/version is defined as 1 in the manifest and when /etc/hostname.* is
# obsoleted, it is changed to 2.  upgrade/nwamd_version is migrated from
# nwamd/version of the nwam instance and is the one currently used to track
# version.
#
# NB: upgrade/nwamd_version property is used to track the current version.
#
# Also, note that NET_PHYSICAL_VERSION in
# usr/src/cmd/cmd-inet/lib/nwamd/util.h must be updated to use this same value.
#
#   v0: NWAM Phase 0/0.5
#	- no version property
#   v1: NWAM Phase 1
#	- nwamd/version = 1 in nwam instance
#   v2: Hostname obsoleted
#	- upgrade/version = 2 in default instance
#   v3: defaultrouter(5) EOF
#	- upgrade/version = 3 in default instance
#   v2: Instances merge (nwam instance obsoleted)
#	- upgrade/nwamd_version = 2 in default instance
#	- nwaminst/upgraded = true in nwam instance
#   v3: Highlander (merged repo, nwam instance removed)
#	- upgrade/nwamd_version = 3
#   v4: No NWAM (NCP and locations removed, one config file)
#	- upgrade/nwamd_version = 4
#
NET_PHYSICAL_HIGHLANDER_VERSION=3
NET_PHYSICAL_NO_NWAM_VERSION=4
NET_PHYSICAL_VERSION=$NET_PHYSICAL_NO_NWAM_VERSION

DEFRTR_EOF_VERSION=3
DEFRTR=/etc/defaultrouter

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

VOL_NETCFG_PATH=$SMF_SYSVOL_FS/netcfg

NET_INSTALL_FMRI="svc:/network/install:default"
NP_DEFAULT_FMRI="svc:/network/physical:default"

STATIC_ROUTES_FILE="/etc/inet/static_routes"

#
# Convert a device-based nic name to a physical link name.
#
nic2phys ()
{
	/usr/sbin/dladm show-phys -p -odevice,link |
		while IFS=':' read device phys; do
			if [[ $device == $1 ]]; then
				print $phys
				return
			fi
		done
	print $1
}

#
# Network configuration for network installs is obtained manually (via the
# PROM or CLI during boot) or via DHCP. In the case of DHCP, enable
# svc:/network/dhcp/client:default so that dhcpagent can adopt the already
# configured interface.  In the case of a manual configuration, the
# configuration should be retrieved using netbootinfo and the interface and,
# optionally, a default route should be configured using the proper CLIs.
#
# Note that iSCSI is a special case since it needs to configure its interface
# itself in the kernel.
#
config_netinstall ()
{
	#
	# netbootinfo returns an error in the non-network boot case. So,
	# just return.
	#
	strategy=`$NETBOOTINFO net-config-strategy 2>/dev/null`
	if [ $? -ne 0 -o -z "$strategy" -o "$strategy" = "none" ]; then
		return
	fi
	echo "Configuring network using boot properties."

nic=`$NETBOOTINFO interface-name 2>/dev/null`
	phys=`nic2phys $nic`
	if [ $? -ne 0 -o -z "$phys" -o "$phys" = "none" ]; then
		echo "Failed to obtain network interface used to" \
		    "boot from the network.\nConfiguration bypassed."
		return
	fi

#
	# It is possible that the kernel has already plumbed and
	# configured the interface (e.g., iSCSI boot). If so,
	# just return.
	#
	state=`$IPADM show-if -p -o state $phys 2>/dev/null`
	if [ $? -eq 0 -a "$state" = "ok" ] ; then
		#
		# If netbooting with iSCSI boot, then continue to enable
		# svc:/network/dhcp/client:default
		#
		if [ "$strategy" = "dhcp" ] ; then
			echo "$phys has been configured, but needs to" \
			    "be adopted."
		else
			echo "$phys has already been configured. No" \
			    "need to reconfigure.\nConfiguration bypassed."
			return
		fi
	fi

#
	# If a vlan was specified, configure it here and reassign phys to it
	#
	vlan=`$NETBOOTINFO vlan 2>/dev/null`
	if [ "$vlan" -ne "none" ]; then
		vphys=${phys}vlan${vlan}
		dladm create-vlan -l $phys -v $vlan $vphys
		if [ $? -ne 0 ]; then
			echo "Failed to configure vlan $vlan"
			return
		else
			echo "Configured vlan $vlan"
		fi
		phys=$vphys
	fi

case "$strategy" in
	"dhcp")
		#
		# If vlan was set, just configure a new DHCP interface on it
		#
		if [ "$vlan" -ne "none" ]; then
			ipadm create-ip -t $phys
			ipadm create-addr -t -T dhcp $phys/netboot
			if [ $? -ne 0 ]; then
				echo "Failed to configure network over vlan"
				return
			else
				echo "Configured DHCP over VLAN $vlan"
			fi
		else
			#
			# Enable svc:/network/dhcp/client:default to adopt
			#
			$SVCADM enable -st svc:/network/dhcp/client:default
			echo "Adopted DHCP configured interface, $phys."
		fi
		;;

"manual")
		ip=`$NETBOOTINFO host-ip 2>/dev/null`
		if [ $? -ne 0 -o -z "$ip" -o "$ip" = "none" ]; then
			echo "Failed to obtain IP address for manual" \
			    "configuration.\nConfiguration bypassed."
			return
		fi

mask=`$NETBOOTINFO subnet-mask 2>/dev/null`
		if [ $? -ne 0 -o -z "$mask" -o "$mask" = "none" ]; then
			echo "Failed to obtain netmask for manual" \
			    "configuration.\nConfiguration bypassed."
			return
		fi

#
		# ipadm requires CIDR prefixlen so convert
		# mask to plen.
		#
		plen=`netmask2plen $mask`
		if [ $? -ne 0 -o -z "$plen" ]; then
			echo "Failed to configure network using" \
			    "boot parameters."
			echo "Could not convert $mask to CIDR prefixlen."
			return
		fi

#
		# Configure the interface. No need for it to be
		# persistent.
		#
		$IPADM show-if $phys >/dev/null 2>&1
		if [ $? -ne 0 ]; then
			$IPADM create-ip -t $phys
			if [ $? -ne 0 ]; then
				warn_failed_ifs "create IPv4" "$phys"
				return
			fi
		fi
		$IPADM create-addr -t -T static -a \
		    local=$ip/$plen $phys/netboot >/dev/null 2>&1
		if [ $? -ne 0 ]; then
			echo "Failed to configure address $ip/$plen on $phys"
			warn_failed_ifs "plumb IPv4" "$phys"
			return
		fi
		echo "Configured $phys using boot parameters."

router=`$NETBOOTINFO router-ip 2>/dev/null`
		if [ $? -ne 0 -o -z "$router" -o "$router" = "none" ]; then
			return
		fi

$ROUTE add default $router -ifp $phys >/dev/null 2>&1
		$ROUTE get default $router -ifp $phys >/dev/null 2>&1
		if [ $? -ne 0 ]; then
			echo "Failed to configure default route using" \
			    "boot parameter:\nrouter-ip=$router"
			return
		fi
		echo "Added default route using boot parameters."
		;;
	esac
}

#
# configure_dhcp
#
# Configure DHCP addresses on all interfaces in the system.  Use a wait of 0
# so that libipadm does not wait.  We will wait here for at least one address
# to be configured or 120 seconds have elapsed.
#
configure_dhcp()
{
	media=$(/usr/bin/svcs -Ho STATE svc:/system/filesystem/root-assembly:media \
	    2>/dev/null)
	dhcpstarted=

for if in $($DLADM show-link -po LINK 2>/dev/null); do
		# If booted with media and the link has "allowed-ips", skip
		if [[ $media != disabled ]]; then
		    ips=$($DLADM show-linkprop -co VALUE -p allowed-ips $if \
		        2>/dev/null)
		    [[ -n $ips ]] && continue
		fi

$IPADM delete-ip $if 2>/dev/null
		$IPADM create-ip -t $if 2>/dev/null
		$IPADM create-addr -t -T dhcp -w 0 $if/v4 2>/dev/null
		dhcpstarted=yes
	done

# If we did not configure DHCP, no need to wait
	[[ -z $dhcpstarted ]] && return

maxwait=120 # seconds (default dhcp timeout)
	cnt=0
	while (( cnt < maxwait )); do
		$IPADM show-addr -po addrobj,addr,state 2>/dev/null | \
		    while IFS=':' read aobj addr state; do
			# skip loopback addresses
			[[ $aobj == lo0* ]] && continue
			# skip disabled addresses
			[[ $state == disabled ]] && continue
			# if any addr has : or ., then it has address
			if [[ $addr == *[.:]* ]]; then
				echo "$aobj is configured with $addr"
				break 2 # break out of both while-loops
			fi
		done
		# loop
		(( cnt++ ))
		sleep 1
	done
}

#
# upgrade_static_routes_file
#
# Add any default routes specified in the /etc/defaultrouter file to the
# /etc/inet/static_routes.
#
# Note that if there is an error upgrading the file, we print a warning
# message and march on.
#
upgrade_static_routes_file()
{
	typeset TMPSTATICRTS=/system/volatile/static_routes.$$
	typeset RT

if [ -f $STATIC_ROUTES_FILE ]; then
		$CP -p $STATIC_ROUTES_FILE $TMPSTATICRTS
	else
		echo "#" > $TMPSTATICRTS
		echo "# File generated by Solaris upgrade - do not edit." \
		    >> $TMPSTATICRTS
		echo "#" >> $TMPSTATICRTS
	fi
	if [ $? != 0 ]; then
		echo "Failed to upgrade default route(s)"
		return
	fi

$GREP -v "^#" $DEFRTR | while read RT;
	do
		echo default $RT >> $TMPSTATICRTS
	done
	$MV -f $TMPSTATICRTS $STATIC_ROUTES_FILE 2>/dev/null
	if [ $? != 0 ]; then
		$RM $TMPSTATICRTS
		echo "Failed to rename $TMPSTATICRTS file"
		return
	fi
}

#
# upgrade_defaultrouter
#
# defaultrouter(5) is no longer supported.  As we transition to not supporting
# it any longer, apply any existing default routes to /etc/inet/static_route
# file.  If the defaultrouter file was being used, then add a comment to file
# to make sure the administrator knows that the file is no longer supported.
#
# Additionally, once we have transitioned to no longer supporting the file,
# give the administrator a message if they configure it.
#
upgrade_defaultrouter()
{
	typeset NROUTES=0

typeset SVCVER=`$SVCCFG -s $SMF_FMRI listprop -o value upgrade/version 2>/dev/null`
	[ $? -eq 1 ] && SVCVER=0
	[ -f $DEFRTR ] && NROUTES=`$GREP -cv "^#" $DEFRTR`
	if [ "$SVCVER" -ge "$DEFRTR_EOF_VERSION" ]; then
		#
		# If someone has configured defaultrouter give them a slap
		# up side the head.
		#
		if [ $NROUTES -ne 0 ]; then
			msg="defaultrouter(5) is not supported on this "
			msg=$msg"version of Solaris.\n"
			msg=$msg"Use route(8) to configure persistent routes."

echo "$msg" | smf_console
			echo $msg
		fi

#
		# Move the defaultrouter file aside if it exists to avoid
		# problems with future sysconfig configure/reconfigure
		# operations.
		#
		[ -f $DEFRTR ] && $MV -f $DEFRTR ${DEFRTR}.obsolete
		return
	fi

#
	# Before ending the feature, process the file. This means applying the
	# default route(s) to the /etc/inet/static_routes file.
	#
	if [ $NROUTES -ne 0 ]; then
		upgrade_static_routes_file
	fi

#
	# If the defrouter file exists, then update it to mention the end of
	# the feature and move the file aside to avoid future problems.
	#
	if [ -f $DEFRTR ]; then
		echo "#" >$DEFRTR
		echo "# This file is no longer supported in this version of" \
		    "Oracle Solaris." >>$DEFRTR
		echo "#" >>$DEFRTR
		echo "# To configure persistent default routes, use the" \
		    "route(8) command" >>$DEFRTR
		echo "# with the '-p' option." >>$DEFRTR
		echo "#" >>$DEFRTR
		$MV -f $DEFRTR ${DEFRTR}.obsolete
        fi

#
	# This upgrade is a one shot deal.
	#
	$SVCCFG -s $SMF_FMRI setprop \
	    upgrade/version = integer: $DEFRTR_EOF_VERSION
}

#
# move_static_routes <profile>
#
# Removal of NWAM profiles.  The data from the active profile is moved to
# /etc/inet/static_routes. Move profile-specific static_routes files to
# *.obsolete.
#
move_static_routes()
{
	typeset profile=$1
	tmpfile=$STATIC_ROUTES_FILE.tmp
	if [ -f $STATIC_ROUTES_FILE-${profile} ]; then
		$CP -p $STATIC_ROUTES_FILE-${profile} $tmpfile
		$MV -f $tmpfile $STATIC_ROUTES_FILE
	fi
	for file in ${STATIC_ROUTES_FILE}-*; do
		ext="${file##*.}"
		if [ $ext != "obsolete" -a -f $file ]; then
			$MV -f ${file} ${file}.obsolete 2>/dev/null
		fi
	done
}

#
# move_ncp_default_routes <profile>
#
# Some NCPs may have {ipv4,ipv6}-default-route specified.  Move such routes to
# /etc/inet/static_routes file.
#
move_ncp_default_routes()
{
	typeset profile=$1
	file=/etc/ipadm/ipadm-${profile}.conf

# cannot use netcfg(8) command to get the properties, script it.
	# Also, cannot use route(8) command because the interfaces aren't
	# created yet.  Append to the static_routes file directly.

# ipv4-default-route
	# _ifname=net0;		[...]ipv4-default-route=string,x.x.x.x;[...]
	$GREP ipv4-default-route $file 2>/dev/null | \
	    /usr/bin/sed -e 's/^_ifname=$[a-zA-Z0-9]*$;.*ipv4-default-route=string,$[0-9\.]*$;.*$/\1 \2/' | \
	    while read if dest; do \
		echo "default $dest -ifp $if" >> $STATIC_ROUTES_FILE; \
		done

# ipv6-default-route
	# _ifname=net0;		[...]ipv6-default-route=string,x:x:x::x;[...]
	$GREP ipv6-default-route $file 2>/dev/null | \
	    /usr/bin/sed -e 's/^_ifname=$[a-zA-Z0-9]*$;.*ipv6-default-route=string,$[a-zA-Z0-9:]*$;.*$/\1 \2/' | \
	    while read if dest; do \
		echo "-inet6 default $dest -ifp $if" >> $STATIC_ROUTES_FILE; \
		done
}

#
# Remove the IP configuration.  Also, disconnect wireless connections and
# remove secure objects.
#
net_unconfigure ()
{
	# flush the forwarding table, including persistent entries
	$ROUTE -p flush

#
	# It is not possible to release the DHCP leases with "ipadm
	# delete-addr -r" because when this function is called, the interfaces
	# are disabled.  This means that because active addresses are not
	# found, the '-r' is ignored.  Thus, explicitly remove the lease files
	# and the DUID and IAID files from /var/dhcp (and also the old
	# /etc/dhcp) directory.
	#
	$RM -f /var/dhcp/*.dhc /var/dhcp/*.dh6 /var/dhcp/duid /var/dhcp/iaid
	$RM -f /etc/dhcp/*.dhc /etc/dhcp/*.dh6 /etc/dhcp/duid /etc/dhcp/iaid

# delete all non-loopback IP interfaces.
	for intf in $($IPADM show-if -p -o ifname,class); do
		echo $intf | IFS=':' read ifname ifclass
		case $ifclass in
		'ip' )
			$IPADM delete-ip $ifname
			;;
		'ipmp' )
			$IPADM delete-ipmp --force $ifname
			;;
		'vni' )
			$IPADM delete-vni $ifname
			;;
		esac
		if [ $? -ne 0 ]; then
			return 1
		fi
	done

if smf_is_globalzone; then
		# disconnect from any connected WiFi links
		for wifi in $($DLADM show-wifi -p -o link,status); do
			echo $wifi | IFS=':' read linkname wifistatus
			if [ "$wifistatus" == "connected" ]; then
				$DLADM disconnect-wifi $linkname
				if [ $? -ne 0 ]; then
					return 1
				fi
			fi
		done

# delete security objects
		for secobj in $($DLADM show-secobj -p -o object); do
			$DLADM delete-secobj $secobj  || return 1
		done
	fi
	return 0
}

#
# Script entry point
#
# Arguments to net-physical are
#	method ( start | refresh | stop | upgrade | unconfigure )
#

#
# Ensure directory for libnetcfg doors etc exists and is owned by netadm/netadm
#
if [ ! -d $VOL_NETCFG_PATH ]; then
	/usr/bin/mkdir -m 0755 $VOL_NETCFG_PATH
	/usr/bin/chown netadm:netadm $VOL_NETCFG_PATH
fi

case "$1" in
'start')
	#
	# This service doesn't do anything in a shared-stack zone; but it
	# needs to be online to meet dependencies.  We use this return
	# value to notify the smf infrastructure that there are no running
	# processes associated with this online, non-transient service.
	#
	smf_configure_ip
	if [ $? -eq 1 ]; then
		smf_method_exit $SMF_EXIT_TEMP_TRANSIENT shared_stack \
		    "$SMF_FMRI does nothing in a shared-stack zone"
	fi

# remainder of script is start action
	;;

'unconfigure')
	# Unconfigure interfaces first
	net_unconfigure || exit $SMF_EXIT_ERR_CONFIG

#
	# Revert property customizations.  We revert back to the profile that
	# was set by the install manifest.
	#
	$SVCCFG -s $SMF_FMRI delcust general/enabled || \
	    exit $SMF_EXIT_ERR_CONFIG
	$SVCCFG -s $SMF_FMRI delcust nwamd || exit $SMF_EXIT_ERR_CONFIG
	$SVCADM refresh $SMF_FMRI

$SVCCFG -s $NET_INSTALL_FMRI delcust || exit $SMF_EXIT_ERR_CONFIG
	$SVCADM refresh $NET_INSTALL_FMRI

exit $SMF_EXIT_OK
	;;

'refresh')
	/usr/bin/pkill -HUP -z `smf_zonename` nwamd

exit $SMF_EXIT_OK
	;;

'stop')
	# Nothing to do in a shared stack zone.
	smf_configure_ip
	[ $? -eq 1 ] &&	exit $SMF_EXIT_OK

/usr/bin/pkill -z `smf_zonename` nwamd

# Kill any processes left in service contract. For example,
	# the dhcpagent in the DHCP netinstall case.
	smf_kill_contract $2 TERM 1
        [ $? -ne 0 ] && exit $SMF_EXIT_ERR_CONFIG

exit $SMF_EXIT_OK
	;;

'upgrade')
	version=`$SVCPROP -cp upgrade/nwamd_version $NP_DEFAULT_FMRI`
	profile=`$SVCPROP -cp netcfg/active_ncp $NP_DEFAULT_FMRI 2>/dev/null`
	/lib/inet/nwamd -u
	case $? in
	'-1')
		exit $SMF_EXIT_ERR_FATAL
		;;
	'1')
		#
		# Return value of 1 indicates upgrade was required and
		# completed successfully
		#
		if [ "$version" -lt "$NET_PHYSICAL_NO_NWAM_VERSION" ]; then
			# No NWAM - only one static routes file
			move_static_routes "$profile"

# If there are any default routes in the NCP, make it
			# a persistent static route
			move_ncp_default_routes "$profile"
		fi
		;;
	esac
	exit $SMF_EXIT_OK
	;;

*)
	echo "Usage: $0 { start | stop | refresh | unconfigure | upgrade }"
	exit 1
	;;
esac

#
# Remainder of 'start' script
#

if smf_is_globalzone; then
	#
	# Only applicable for Kernel Zones.
	# Returns after all the Implicit DLMPs have been created
	#
	if smf_is_kernelzone; then
		$DLADM init-idlmp
	fi

# Initialize device properties
	$DLADM init-devprop

$DLADM init-secobj

#
        # Upgrade handling. The upgrade file consists of a series of dladm(8)
        # commands.
        #
        upgrade_script=/var/svc/profile/upgrade_datalink
        if [ -f "${upgrade_script}" ]; then
                . "${upgrade_script}"
                #
                # Rename the upgrade script file so that on subsequent reboots
                # we do not end up applying the same configuration.
                #
                $MV -f "${upgrade_script}" \
                    "${upgrade_script}".app.`/usr/bin/date +\%Y\%m\%d\%H\%M\%S`
        fi

#
	# If the global zone is running as a kernel zone guest, then
	# IP interface configuration can come from the host through
	# zonecfg's allowed-address and defrouter properties.
	#

if smf_is_kernelzone; then
		#
		# See below.
		#
		$IPADM create-ip -z
	fi
else
        #
        # In non-global zones, IP interface configuration for normal anets
	# and EVS anets can come from the global zone via zonecfg's
	# allowed-address and configure-allowed-address properties. Before we
	# enable addresses configured in this manner, we need to create
        # persistent IP interface configuration if it doesn't already
        # exist.
        #
        $IPADM create-ip -z

#
        # Create flows via flowadm
        #
        /usr/sbin/flowadm init-flow
fi

#
# Check for netboot info to direct us.
#
if smf_is_globalzone; then
	config_netinstall
fi

#
# If the private nwamd/dhcp SMF property is set, configure all interfaces with
# non-persistent DHCP addresses.  Wait until at least one DHCP address is
# configured or 120 seconds has elapsed.
#
dhcp=`$SVCPROP -cp nwamd/dhcp $NP_DEFAULT_FMRI 2>/dev/null`
if [ "$dhcp" = "true" ]; then
	configure_dhcp
fi

#
# Start nwamd in foreground; it will daemonize itself
#
/lib/inet/nwamd || exit $SMF_EXIT_ERR_FATAL

#
# See if static routes were created by install. If so, they were created
# under $SMF_SYSVOL_FS. Copy them into their proper place.
#
SYSVOL_STATIC_ROUTES="${SMF_SYSVOL_FS}/${STATIC_ROUTES_FILE}"
if [ -f $SYSVOL_STATIC_ROUTES ]; then
	echo "Installing persistent routes"
	if [ -f $STATIC_ROUTES_FILE ]; then
		$CAT $SYSVOL_STATIC_ROUTES | $GREP -v '^#' \
		    >> $STATIC_ROUTES_FILE
		$RM -f $SYSVOL_STATIC_ROUTES
	else
		$MV -f $SYSVOL_STATIC_ROUTES $STATIC_ROUTES_FILE
	fi
fi

#
# defaultrouter(5) is no longer supported.
#
upgrade_defaultrouter

#
# Upgrade persistent static routes in /etc/inet/static_routes to SMF
#
if [ -f $STATIC_ROUTES_FILE ]; then
	/usr/bin/egrep -v "^(#|$)" $STATIC_ROUTES_FILE \
	    | while read line; do
		$ROUTE upgrade-smf $line
	done
	$MV -f $STATIC_ROUTES_FILE ${STATIC_ROUTES_FILE}.obsolete
fi

#
# Add the persistent static routes, so that the next stage of booting will
# have access to NFS.  This is done here as well as in network/routing-setup
# for that reason.
#
$ROUTE add -a

exit $SMF_EXIT_OK