[people/pmueller/ipfire-2.x.git] / src / initscripts / helper / aws-setup

#!/bin/bash

. /etc/sysconfig/rc
. ${rc_functions}

# Set PATH to find our own executables
export PATH=/usr/local/sbin:/usr/local/bin:${PATH}

get() {
	local file="${1}"

	wget -qO - "http://169.254.169.254/latest/${file}"
}

to_address() {
	local n="${1}"

	local o1=$(( (n & 0xff000000) >> 24 ))
	local o2=$(( (n & 0xff0000) >> 16 ))
	local o3=$(( (n & 0xff00) >> 8 ))
	local o4=$(( (n & 0xff) ))

	printf "%d.%d.%d.%d\n" "${o1}" "${o2}" "${o3}" "${o4}"
}

to_integer() {
	local address="${1}"

	local integer=0

	local i
	for i in ${address//\./ }; do
		integer=$(( (integer << 8) + i ))
	done

	printf "%d\n" "${integer}"
}

prefix2netmask() {
	local prefix=${1}

	local zeros=$(( 32 - prefix ))
	local netmask=0

	local i
	for (( i=0; i<${zeros}; i++ )); do
		netmask=$(( (netmask << 1) ^ 1 ))
	done

	to_address "$(( netmask ^ 0xffffffff ))"
}

find_interface() {
	local mac="${1}"

	local path
	for path in /sys/class/net/*; do
		local address="$(<${path}/address)"

		if [ "${mac}" = "${address}" ]; then
			basename "${path}"
			return 0
		fi
	done

	return 1
}

import_aws_configuration() {
	local instance_id="$(get meta-data/instance-id)"

	boot_mesg "Importing AWS configuration for instance ${instance_id}..."

	# Store instance ID
	echo "${instance_id}" > /var/run/aws-instance-id

	# Initialise system settings
	local hostname=$(get meta-data/local-hostname)

	# Set hostname
	if ! grep -q "^HOSTNAME=" /var/ipfire/main/settings; then
		echo "HOSTNAME=${hostname%%.*}" >> /var/ipfire/main/settings
	fi

	# Set domainname
	if ! grep -q "^DOMAINNAME=" /var/ipfire/main/settings; then
		echo "DOMAINNAME=${hostname#*.}" >> /var/ipfire/main/settings
	fi

	# Create setup user
	if ! getent passwd setup &>/dev/null; then
		useradd setup -s /usr/bin/run-setup -g nobody -m

		# Unlock the account
		usermod -p "x" setup
	fi

	# Import SSH keys for setup user
	local line
	for line in $(get "meta-data/public-keys/"); do
		local key_no="${line%=*}"

		local key="$(get meta-data/public-keys/${key_no}/openssh-key)"
		if [ -n "${key}" ] && ! grep -q "^${key}$" "/home/setup/.ssh/authorized_keys" 2>/dev/null; then
			mkdir -p "/home/setup/.ssh"
			chmod 700 "/home/setup/.ssh"
			chown setup.nobody "/home/setup/.ssh"

			echo "${key}" >> "/home/setup/.ssh/authorized_keys"
			chmod 600 "/home/setup/.ssh/authorized_keys"
			chown setup.nobody "/home/setup/.ssh/authorized_keys"
		fi
	done

	# Download the user-data script only on the first boot
	if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
		# Initialize pakfire
		/etc/init.d/pakfire start &>/dev/null

		# Install all available updates
		( pakfire update && pakfire upgrade -y ) &>/dev/null

		# If an update requires a reboot, we will do it
		if [ -e "/var/run/need_reboot" ]; then
			reboot
			exit 1
		fi

		# Download user-data
		local user_data="$(get user-data)"

		# Save user-data script to be executed later
		if [ "${user_data:0:2}" = "#!" ]; then
			echo "${user_data}" > /tmp/aws-user-data.script
			chmod 700 /tmp/aws-user-data.script

			# Run the user-data script
			/tmp/aws-user-data.script &>/root/user-data.log

			# Delete the script right away
			rm /tmp/aws-user-data.script
		fi
	fi

	# Import any DNS server settings
	eval $(/usr/local/bin/readhash <(grep -E "^DNS([0-9])=" /var/ipfire/ethernet/settings 2>/dev/null))

	# Import network configuration
	# After this, no network connectivity will be available from this script due to the
	# renaming of the network interfaces for which they have to be shut down
	local config_type=1
	: > /var/ipfire/ethernet/settings

	local mac
	for mac in $(get meta-data/network/interfaces/macs/); do
		# Remove trailing slash
		mac="${mac//\//}"

		local device_number="$(get "meta-data/network/interfaces/macs/${mac}/device-number")"
		local interface_id="$(get "meta-data/network/interfaces/macs/${mac}/interface-id")"

		# First IPv4 address
		local ipv4_address="$(get "meta-data/network/interfaces/macs/${mac}/local-ipv4s" | head -n1)"
		local ipv4_address_num="$(to_integer "${ipv4_address}")"

		# Get VPC subnet
		local vpc="$(get "meta-data/network/interfaces/macs/${mac}/vpc-ipv4-cidr-block")"
		local vpc_netaddress="${vpc%/*}"
		local vpc_netaddress_num="$(to_integer "${vpc_netaddress}")"

		# Get subnet size
		local subnet="$(get "meta-data/network/interfaces/macs/${mac}/subnet-ipv4-cidr-block")"

		local prefix="${subnet#*/}"
		local netmask="$(prefix2netmask "${prefix}")"
		local netmask_num="$(to_integer "${netmask}")"

		# Calculate the network and broadcast addresses
		local netaddress="${subnet%/*}"
		local netaddress_num="$(to_integer "${netaddress}")"
		local broadcast="$(to_address $(( ipv4_address_num | (0xffffffff ^ netmask_num) )))"

		case "${device_number}" in
			# RED
			0)
				local interface_name="red0"

				# The gateway is always the first IP address in the subnet
				local gateway="$(to_address $(( netaddress_num + 1 )))"

				# The AWS internal DNS service is available on the second IP address of the VPC
				local dns1="$(to_address $(( vpc_netaddress_num + 2 )))"
				local dns2=

				(
					echo "RED_TYPE=STATIC"
					echo "RED_DEV=${interface_name}"
					echo "RED_MACADDR=${mac}"
					echo "RED_DESCRIPTION='${interface_id}'"
					echo "RED_ADDRESS=${ipv4_address}"
					echo "RED_NETMASK=${netmask}"
					echo "RED_NETADDRESS=${netaddress}"
					echo "RED_BROADCAST=${broadcast}"
					echo "DEFAULT_GATEWAY=${gateway}"
					echo "DNS1=${DNS1:-${dns1}}"
					echo "DNS2=${DNS2:-${dns2}}"
				) >> /var/ipfire/ethernet/settings

				# Import aliases for RED
				for alias in $(get "meta-data/network/interfaces/macs/${mac}/local-ipv4s" | tail -n +2); do
					echo "${alias},on,"
				done > /var/ipfire/ethernet/aliases
				;;

			# GREEN
			1)
				local interface_name="green0"

				(
					echo "GREEN_DEV=${interface_name}"
					echo "GREEN_MACADDR=${mac}"
					echo "GREEN_DESCRIPTION='${interface_id}'"
					echo "GREEN_ADDRESS=${ipv4_address}"
					echo "GREEN_NETMASK=${netmask}"
					echo "GREEN_NETADDRESS=${netaddress}"
					echo "GREEN_BROADCAST=${broadcast}"
				) >> /var/ipfire/ethernet/settings
				;;

			# ORANGE
			2)
				local interface_name="orange0"
				config_type=2

				(
					echo "ORANGE_DEV=${interface_name}"
					echo "ORANGE_MACADDR=${mac}"
					echo "ORANGE_DESCRIPTION='${interface_id}'"
					echo "ORANGE_ADDRESS=${ipv4_address}"
					echo "ORANGE_NETMASK=${netmask}"
					echo "ORANGE_NETADDRESS=${netaddress}"
					echo "ORANGE_BROADCAST=${broadcast}"
				) >> /var/ipfire/ethernet/settings
				;;
		esac

		# Rename interface
		local interface="$(find_interface "${mac}")"

		if [ -n "${interface}" ] && [ -n "${interface_name}" ] && [ "${interface}" != "${interface_name}" ]; then
			ip link set "${interface}" down
			ip link set "${interface}" name "${interface_name}"
		fi
	done

	# Save CONFIG_TYPE
	echo "CONFIG_TYPE=${config_type}" >> /var/ipfire/ethernet/settings

	# Actions performed only on the very first start
	if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
		# Enable SSH
		sed -e "s/ENABLE_SSH=.*/ENABLE_SSH=on/g" -i /var/ipfire/remote/settings

		# Disable SSH password authentication
		sed -e "s/^ENABLE_SSH_PASSWORDS=.*/ENABLE_SSH_PASSWORDS=off/" -i /var/ipfire/remote/settings

		# Enable SSH key authentication
		sed -e "s/^ENABLE_SSH_KEYS=.*/ENABLE_SSH_KEYS=on/" -i /var/ipfire/remote/settings

		# Apply SSH settings
		/usr/local/bin/sshctrl

		# Mark SSH to start immediately (but not right now)
		touch /var/ipfire/remote/enablessh
		chown nobody:nobody /var/ipfire/remote/enablessh

		# Firewall rules for SSH and WEBIF
		(
			echo "1,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,cust_srv,SSH,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
			echo "2,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,TGT_PORT,444,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
		) >> /var/ipfire/firewall/input

		# This script has now completed the first steps of setup
		touch /var/ipfire/main/firstsetup_ok
	fi

	# All done
	echo_ok
}

case "${reason}" in
	PREINIT)
		# Bring up the interface
		ip link set "${interface}" up
		;;

	BOUND|RENEW|REBIND|REBOOT)
		# Remove any previous IP addresses
		ip addr flush dev "${interface}"

		# Add (or re-add) the new IP address
		ip addr add "${new_ip_address}/${new_subnet_mask}" dev "${interface}"

		# Add the default route
		ip route add default via "${new_routers}"

		# Setup DNS
		for domain_name_server in ${new_domain_name_servers}; do
			echo "nameserver ${domain_name_server}"
		done > /etc/resolv.conf

		# The system is online now
		touch /var/ipfire/red/active

		# Import AWS configuration
		import_aws_configuration
		;;

	EXPIRE|FAIL|RELEASE|STOP)
		# The system is no longer online
		rm -f /var/ipfire/red/active

		# Remove all IP addresses
		ip addr flush dev "${interface}"
		;;

	*)
		echo "Unhandled reason: ${reason}" >&2
		exit 2
		;;
esac

# Terminate
exit 0
Commit	Line	Data
bd3bcb45 MT	1	#!/bin/bash
	2
	3	. /etc/sysconfig/rc
	4	. ${rc_functions}
	5
9ae73c30 MT	6	# Set PATH to find our own executables
	7	export PATH=/usr/local/sbin:/usr/local/bin:${PATH}
	8
bd3bcb45 MT	9	get() {
	10	local file="${1}"
	11
4e4c122c	12	wget -qO - "http://169.254.169.254/latest/${file}"
bd3bcb45 MT	13	}
	14
	15	to_address() {
	16	local n="${1}"
	17
	18	local o1=$(( (n & 0xff000000) >> 24 ))
	19	local o2=$(( (n & 0xff0000) >> 16 ))
	20	local o3=$(( (n & 0xff00) >> 8 ))
	21	local o4=$(( (n & 0xff) ))
	22
	23	printf "%d.%d.%d.%d\n" "${o1}" "${o2}" "${o3}" "${o4}"
	24	}
	25
	26	to_integer() {
	27	local address="${1}"
	28
	29	local integer=0
	30
	31	local i
	32	for i in ${address//\./ }; do
	33	integer=$(( (integer << 8) + i ))
	34	done
	35
	36	printf "%d\n" "${integer}"
	37	}
	38
	39	prefix2netmask() {
	40	local prefix=${1}
	41
	42	local zeros=$(( 32 - prefix ))
	43	local netmask=0
	44
	45	local i
	46	for (( i=0; i<${zeros}; i++ )); do
	47	netmask=$(( (netmask << 1) ^ 1 ))
	48	done
	49
	50	to_address "$(( netmask ^ 0xffffffff ))"
	51	}
	52
c7141f04 MT	53	find_interface() {
	54	local mac="${1}"
	55
	56	local path
	57	for path in /sys/class/net/*; do
	58	local address="$(<${path}/address)"
	59
	60	if [ "${mac}" = "${address}" ]; then
	61	basename "${path}"
	62	return 0
	63	fi
	64	done
	65
	66	return 1
	67	}
	68
bd3bcb45	69	import_aws_configuration() {
4e4c122c	70	local instance_id="$(get meta-data/instance-id)"
bd3bcb45 MT	71
	72	boot_mesg "Importing AWS configuration for instance ${instance_id}..."
	73
eb7ccf87 MT	74	# Store instance ID
	75	echo "${instance_id}" > /var/run/aws-instance-id
	76
bd3bcb45	77	# Initialise system settings
4e4c122c	78	local hostname=$(get meta-data/local-hostname)
bd3bcb45	79
3273ff48 MT	80	# Set hostname
	81	if ! grep -q "^HOSTNAME=" /var/ipfire/main/settings; then
	82	echo "HOSTNAME=${hostname%%.*}" >> /var/ipfire/main/settings
	83	fi
	84
	85	# Set domainname
	86	if ! grep -q "^DOMAINNAME=" /var/ipfire/main/settings; then
	87	echo "DOMAINNAME=${hostname#*.}" >> /var/ipfire/main/settings
bd3bcb45 MT	88	fi
bd3bcb45 MT	89
1413006b MT	90	# Create setup user
1413006b MT	91	if ! getent passwd setup &>/dev/null; then
e2d9fe7e	92	useradd setup -s /usr/bin/run-setup -g nobody -m
87d7fc66 MT	93
	94	# Unlock the account
	95	usermod -p "x" setup
1413006b	96	fi
2e42a9ea	97
53eb4918 MT	98	# Import SSH keys for setup user
53eb4918 MT	99	local line
4e4c122c	100	for line in $(get "meta-data/public-keys/"); do
53eb4918 MT	101	local key_no="${line%=*}"
53eb4918 MT	102
4e4c122c	103	local key="$(get meta-data/public-keys/${key_no}/openssh-key)"
53eb4918 MT	104	if [ -n "${key}" ] && ! grep -q "^${key}$" "/home/setup/.ssh/authorized_keys" 2>/dev/null; then
	105	mkdir -p "/home/setup/.ssh"
	106	chmod 700 "/home/setup/.ssh"
6a7e6b44	107	chown setup.nobody "/home/setup/.ssh"
53eb4918 MT	108
	109	echo "${key}" >> "/home/setup/.ssh/authorized_keys"
	110	chmod 600 "/home/setup/.ssh/authorized_keys"
6a7e6b44	111	chown setup.nobody "/home/setup/.ssh/authorized_keys"
53eb4918	112	fi
2e42a9ea MT	113	done
2e42a9ea MT	114
8defa50e MT	115	# Download the user-data script only on the first boot
8defa50e MT	116	if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
6cf58643	117	# Initialize pakfire
96422f85	118	/etc/init.d/pakfire start &>/dev/null
6cf58643	119
0ed9b770	120	# Install all available updates
96422f85	121	( pakfire update && pakfire upgrade -y ) &>/dev/null
0ed9b770	122
281d75c9 MT	123	# If an update requires a reboot, we will do it
	124	if [ -e "/var/run/need_reboot" ]; then
	125	reboot
	126	exit 1
	127	fi
	128
8defa50e MT	129	# Download user-data
	130	local user_data="$(get user-data)"
	131
	132	# Save user-data script to be executed later
	133	if [ "${user_data:0:2}" = "#!" ]; then
	134	echo "${user_data}" > /tmp/aws-user-data.script
	135	chmod 700 /tmp/aws-user-data.script
	136
	137	# Run the user-data script
40436fa1	138	/tmp/aws-user-data.script &>/root/user-data.log
8defa50e MT	139
	140	# Delete the script right away
	141	rm /tmp/aws-user-data.script
	142	fi
	143	fi
4e4c122c	144
bd3bcb45 MT	145	# Import any DNS server settings
	146	eval $(/usr/local/bin/readhash <(grep -E "^DNS([0-9])=" /var/ipfire/ethernet/settings 2>/dev/null))
	147
	148	# Import network configuration
2e42a9ea MT	149	# After this, no network connectivity will be available from this script due to the
2e42a9ea MT	150	# renaming of the network interfaces for which they have to be shut down
0f224ad7 MT	151	local config_type=1
0f224ad7 MT	152	: > /var/ipfire/ethernet/settings
bd3bcb45	153
3273ff48	154	local mac
4e4c122c	155	for mac in $(get meta-data/network/interfaces/macs/); do
bd3bcb45 MT	156	# Remove trailing slash
	157	mac="${mac//\//}"
	158
4e4c122c MT	159	local device_number="$(get "meta-data/network/interfaces/macs/${mac}/device-number")"
4e4c122c MT	160	local interface_id="$(get "meta-data/network/interfaces/macs/${mac}/interface-id")"
bd3bcb45 MT	161
bd3bcb45 MT	162	# First IPv4 address
4e4c122c	163	local ipv4_address="$(get "meta-data/network/interfaces/macs/${mac}/local-ipv4s" \| head -n1)"
bd3bcb45 MT	164	local ipv4_address_num="$(to_integer "${ipv4_address}")"
bd3bcb45 MT	165
607240e2	166	# Get VPC subnet
4e4c122c	167	local vpc="$(get "meta-data/network/interfaces/macs/${mac}/vpc-ipv4-cidr-block")"
607240e2 MT	168	local vpc_netaddress="${vpc%/*}"
	169	local vpc_netaddress_num="$(to_integer "${vpc_netaddress}")"
	170
bd3bcb45	171	# Get subnet size
4e4c122c	172	local subnet="$(get "meta-data/network/interfaces/macs/${mac}/subnet-ipv4-cidr-block")"
bd3bcb45 MT	173
	174	local prefix="${subnet#*/}"
	175	local netmask="$(prefix2netmask "${prefix}")"
	176	local netmask_num="$(to_integer "${netmask}")"
	177
	178	# Calculate the network and broadcast addresses
	179	local netaddress="${subnet%/*}"
	180	local netaddress_num="$(to_integer "${netaddress}")"
	181	local broadcast="$(to_address $(( ipv4_address_num \| (0xffffffff ^ netmask_num) )))"
	182
bd3bcb45 MT	183	case "${device_number}" in
	184	# RED
	185	0)
c7141f04 MT	186	local interface_name="red0"
c7141f04 MT	187
c86fd963 MT	188	# The gateway is always the first IP address in the subnet
	189	local gateway="$(to_address $(( netaddress_num + 1 )))"
	190
	191	# The AWS internal DNS service is available on the second IP address of the VPC
	192	local dns1="$(to_address $(( vpc_netaddress_num + 2 )))"
	193	local dns2=
	194
bd3bcb45 MT	195	(
bd3bcb45 MT	196	echo "RED_TYPE=STATIC"
c7141f04	197	echo "RED_DEV=${interface_name}"
bd3bcb45 MT	198	echo "RED_MACADDR=${mac}"
	199	echo "RED_DESCRIPTION='${interface_id}'"
	200	echo "RED_ADDRESS=${ipv4_address}"
	201	echo "RED_NETMASK=${netmask}"
	202	echo "RED_NETADDRESS=${netaddress}"
	203	echo "RED_BROADCAST=${broadcast}"
	204	echo "DEFAULT_GATEWAY=${gateway}"
	205	echo "DNS1=${DNS1:-${dns1}}"
	206	echo "DNS2=${DNS2:-${dns2}}"
	207	) >> /var/ipfire/ethernet/settings
	208
	209	# Import aliases for RED
4e4c122c	210	for alias in $(get "meta-data/network/interfaces/macs/${mac}/local-ipv4s" \| tail -n +2); do
bd3bcb45 MT	211	echo "${alias},on,"
	212	done > /var/ipfire/ethernet/aliases
	213	;;
	214
	215	# GREEN
	216	1)
c7141f04 MT	217	local interface_name="green0"
c7141f04 MT	218
bd3bcb45	219	(
c7141f04	220	echo "GREEN_DEV=${interface_name}"
bd3bcb45 MT	221	echo "GREEN_MACADDR=${mac}"
	222	echo "GREEN_DESCRIPTION='${interface_id}'"
	223	echo "GREEN_ADDRESS=${ipv4_address}"
	224	echo "GREEN_NETMASK=${netmask}"
	225	echo "GREEN_NETADDRESS=${netaddress}"
	226	echo "GREEN_BROADCAST=${broadcast}"
	227	) >> /var/ipfire/ethernet/settings
	228	;;
0f224ad7 MT	229
	230	# ORANGE
	231	2)
c7141f04	232	local interface_name="orange0"
0f224ad7 MT	233	config_type=2
	234
	235	(
c7141f04	236	echo "ORANGE_DEV=${interface_name}"
0f224ad7 MT	237	echo "ORANGE_MACADDR=${mac}"
	238	echo "ORANGE_DESCRIPTION='${interface_id}'"
	239	echo "ORANGE_ADDRESS=${ipv4_address}"
	240	echo "ORANGE_NETMASK=${netmask}"
	241	echo "ORANGE_NETADDRESS=${netaddress}"
	242	echo "ORANGE_BROADCAST=${broadcast}"
	243	) >> /var/ipfire/ethernet/settings
	244	;;
bd3bcb45	245	esac
c7141f04 MT	246
	247	# Rename interface
	248	local interface="$(find_interface "${mac}")"
	249
470e85c3	250	if [ -n "${interface}" ] && [ -n "${interface_name}" ] && [ "${interface}" != "${interface_name}" ]; then
c7141f04 MT	251	ip link set "${interface}" down
	252	ip link set "${interface}" name "${interface_name}"
	253	fi
bd3bcb45 MT	254	done
bd3bcb45 MT	255
0f224ad7 MT	256	# Save CONFIG_TYPE
	257	echo "CONFIG_TYPE=${config_type}" >> /var/ipfire/ethernet/settings
	258
bd3bcb45 MT	259	# Actions performed only on the very first start
bd3bcb45 MT	260	if [ ! -e "/var/ipfire/main/firstsetup_ok" ]; then
7fa83c2f	261	# Enable SSH
8b59ef08 MT	262	sed -e "s/ENABLE_SSH=.*/ENABLE_SSH=on/g" -i /var/ipfire/remote/settings
8b59ef08 MT	263
0cf70cae MT	264	# Disable SSH password authentication
	265	sed -e "s/^ENABLE_SSH_PASSWORDS=.*/ENABLE_SSH_PASSWORDS=off/" -i /var/ipfire/remote/settings
	266
7fa83c2f MT	267	# Enable SSH key authentication
	268	sed -e "s/^ENABLE_SSH_KEYS=.*/ENABLE_SSH_KEYS=on/" -i /var/ipfire/remote/settings
	269
8f2c3b49 MT	270	# Apply SSH settings
	271	/usr/local/bin/sshctrl
	272
693208bf MT	273	# Mark SSH to start immediately (but not right now)
	274	touch /var/ipfire/remote/enablessh
	275	chown nobody:nobody /var/ipfire/remote/enablessh
	276
bd3bcb45 MT	277	# Firewall rules for SSH and WEBIF
	278	(
	279	echo "1,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,cust_srv,SSH,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
	280	echo "2,ACCEPT,INPUTFW,ON,std_net_src,ALL,ipfire,RED1,,TCP,,,ON,,,TGT_PORT,444,,,,,,,,,,,00:00,00:00,,AUTO,,dnat,,,,,second"
	281	) >> /var/ipfire/firewall/input
	282
	283	# This script has now completed the first steps of setup
	284	touch /var/ipfire/main/firstsetup_ok
	285	fi
	286
	287	# All done
	288	echo_ok
	289	}
	290
	291	case "${reason}" in
	292	PREINIT)
	293	# Bring up the interface
	294	ip link set "${interface}" up
	295	;;
	296
	297	BOUND\|RENEW\|REBIND\|REBOOT)
	298	# Remove any previous IP addresses
	299	ip addr flush dev "${interface}"
	300
	301	# Add (or re-add) the new IP address
	302	ip addr add "${new_ip_address}/${new_subnet_mask}" dev "${interface}"
	303
	304	# Add the default route
	305	ip route add default via "${new_routers}"
	306
647ca912 MT	307	# Setup DNS
	308	for domain_name_server in ${new_domain_name_servers}; do
	309	echo "nameserver ${domain_name_server}"
	310	done > /etc/resolv.conf
	311
	312	# The system is online now
	313	touch /var/ipfire/red/active
	314
bd3bcb45 MT	315	# Import AWS configuration
	316	import_aws_configuration
	317	;;
	318
	319	EXPIRE\|FAIL\|RELEASE\|STOP)
647ca912 MT	320	# The system is no longer online
	321	rm -f /var/ipfire/red/active
	322
bd3bcb45 MT	323	# Remove all IP addresses
	324	ip addr flush dev "${interface}"
	325	;;
	326
	327	*)
	328	echo "Unhandled reason: ${reason}" >&2
	329	exit 2
	330	;;
	331	esac
	332
	333	# Terminate
	334	exit 0