[ipfire-2.x.git] / src / initscripts / init.d / unbound

#!/bin/sh
# Begin $rc_base/init.d/unbound

# Description : Unbound DNS resolver boot script for IPfire
# Author      : Marcel Lorenz <marcel.lorenz@ipfire.org>

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

TEST_DOMAIN="ipfire.org"

# This domain will never validate
TEST_DOMAIN_FAIL="dnssec-failed.org"

USE_FORWARDERS=1

# Cache any local zones for 60 seconds
LOCAL_TTL=60

# Load optional configuration
[ -e "/etc/sysconfig/unbound" ] && . /etc/sysconfig/unbound

function cidr() {
    local cidr nbits IFS;
    IFS=. read -r i1 i2 i3 i4 <<< ${1}
    IFS=. read -r m1 m2 m3 m4 <<< ${2}
    cidr=$(printf "%d.%d.%d.%d\n" "$((i1 & m1))" "$((i2 & m2))" "$((i3 & m3))" "$((i4 & m4))")
    nbits=0
    IFS=.
    for dec in $2 ; do
        case $dec in
            255) let nbits+=8;;
            254) let nbits+=7;;
            252) let nbits+=6;;
            248) let nbits+=5;;
            240) let nbits+=4;;
            224) let nbits+=3;;
            192) let nbits+=2;;
            128) let nbits+=1;;
            0);;
            *) echo "Error: $dec is not recognised"; exit 1
        esac
    done
    echo "${cidr}/${nbits}"
}

ip_address_revptr() {
	local addr=${1}

	local a1 a2 a3 a4
	IFS=. read -r a1 a2 a3 a4 <<< ${addr}

	echo "${a4}.${a3}.${a2}.${a1}.in-addr.arpa"
}

read_name_servers() {
	local i
	for i in 1 2; do
		echo "$(</var/ipfire/red/dns${i})"
	done | xargs echo
}

config_header() {
	echo "# This file is automatically generated and any changes"
	echo "# will be overwritten. DO NOT EDIT!"
	echo
}

update_forwarders() {
	if [ "${USE_FORWARDERS}" = "1" -a -e "/var/ipfire/red/active" ]; then
		local forwarders
		local broken_forwarders

		local ns
		for ns in $(read_name_servers); do
			test_name_server ${ns} &>/dev/null
			case "$?" in
				# Only use DNSSEC-validating or DNSSEC-aware name servers
				0|2)
					forwarders="${forwarders} ${ns}"
					;;
				*)
					broken_forwarders="${broken_forwarders} ${ns}"
					;;
			esac
		done

		# Show warning for any broken upstream name servers
		if [ -n "${broken_forwarders}" ]; then
			boot_mesg "Ignoring broken upstream name server(s): ${broken_forwarders:1}" ${WARNING}
			echo_warning
		fi

		if [ -n "${broken_forwarders}" -a -z "${forwarders}" ]; then
			boot_mesg "Falling back to recursor mode" ${WARNING}
			echo_warning

		elif [ -n "${forwarders}" ]; then
			boot_mesg "Configuring upstream name server(s): ${forwarders:1}" ${INFO}
			echo_ok

			echo "${forwarders}" > /var/ipfire/red/dns
			unbound-control -q forward ${forwarders}
			return 0
		fi
	fi

	# If forwarders cannot be used we run in recursor mode
	echo "local recursor" > /var/ipfire/red/dns
	unbound-control -q forward off
}

own_hostname() {
	local hostname=$(hostname -f)
	# 1.1.1.1 is reserved for unused green, skip this
	if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then
		unbound-control -q local_data "${hostname} ${LOCAL_TTL} IN A ${GREEN_ADDRESS}"
	fi

	local address
	for address in ${GREEN_ADDRESS} ${BLUE_ADDRESS} ${ORANGE_ADDRESS}; do
		[ -n "${address}" ] || continue
		[ "${address}" = "1.1.1.1" ] && continue

		address=$(ip_address_revptr ${address})
		unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${hostname}"
	done
}

update_hosts() {
	local enabled address hostname domainname

	while IFS="," read -r enabled address hostname domainname; do
		[ "${enabled}" = "on" ] || continue

		# Build FQDN
		local fqdn="${hostname}.${domainname}"

		unbound-control -q local_data "${fqdn} ${LOCAL_TTL} IN A ${address}"

		# Skip reverse resolution if the address equals the GREEN address
		[ "${address}" = "${GREEN_ADDRESS}" ] && continue

		# Add RDNS
		address=$(ip_address_revptr ${address})
		unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${fqdn}"
	done < /var/ipfire/main/hosts
}

write_interfaces_conf() {
	(
		config_header

		# 1.1.1.1 is reserved for unused green
		if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then
			echo "# allow access from GREEN"
			echo "access-control: $(cidr ${GREEN_NETADDRESS} ${GREEN_NETMASK}) allow"
		fi

		if [ -n "${BLUE_ADDRESS}" ]; then
			echo "# allow access from  BLUE"
			echo "access-control: $(cidr ${BLUE_NETADDRESS} ${BLUE_NETMASK}) allow"
		fi
	) > /etc/unbound/interfaces.conf
}

write_forward_conf() {
	(
		config_header

		local insecure_zones

		local enabled zone server remark
		while IFS="," read -r enabled zone server remark; do
			# Line must be enabled.
			[ "${enabled}" = "on" ] || continue

			# Zones that end with .local are commonly used for internal
			# zones and therefore not signed
			case "${zone}" in
				*.local)
					insecure_zones="${insecure_zones} ${zone}"
					;;
			esac

			echo "forward-zone:"
			echo "	name: ${zone}"
			echo "	forward-addr: ${server}"
			echo
		done < /var/ipfire/dnsforward/config

		if [ -n "${insecure_zones}" ]; then
			echo "server:"

			for zone in ${insecure_zones}; do
				echo "	domain-insecure: ${zone}"
			done
		fi
	) > /etc/unbound/forward.conf
}

write_tuning_conf() {
	# https://www.unbound.net/documentation/howto_optimise.html

	# Determine number of online processors
	local processors=$(getconf _NPROCESSORS_ONLN)

	# Determine number of slabs
	local slabs=1
	while [ ${slabs} -lt ${processors} ]; do
		slabs=$(( ${slabs} * 2 ))
	done

	# Determine amount of system memory
	local mem=$(get_memory_amount)

	# In the worst case scenario, unbound can use double the
	# amount of memory allocated to a cache due to malloc overhead

	# Large systems with more than 2GB of RAM
	if [ ${mem} -ge 2048 ]; then
		mem=128

	# Small systems with less than 256MB of RAM
	elif [ ${mem} -le 256 ]; then
		mem=8

	# Everything else
	else
		mem=32
	fi

	(
		config_header

		# We run one thread per processor
		echo "num-threads: ${processors}"

		# Adjust number of slabs
		echo "infra-cache-slabs: ${slabs}"
		echo "key-cache-slabs: ${slabs}"
		echo "msg-cache-slabs: ${slabs}"
		echo "rrset-cache-slabs: ${slabs}"

		# Slice up the cache
		echo "rrset-cache-size: $(( ${mem} / 2 ))m"
		echo "msg-cache-size: $(( ${mem} / 4 ))m"
		echo "key-cache-size: $(( ${mem} / 4 ))m"
	) > /etc/unbound/tuning.conf
}

get_memory_amount() {
	local key val unit

	while read -r key val unit; do
		case "${key}" in
			MemTotal:*)
				# Convert to MB
				echo "$(( ${val} / 1024 ))"
				break
				;;
		esac
	done < /proc/meminfo
}

test_name_server() {
	local ns=${1}

	# Return codes:
	# 0	DNSSEC validating
	# 1	Error: unreachable, etc.
	# 2	DNSSEC aware
	# 3	NOT DNSSEC-aware

	# Exit when the server is not reachable
	ns_is_online ${ns} || return 1

	# Return 0 if validating
	ns_is_validating ${ns} && return 0

	local errors
	for rr in DNSKEY DS RRSIG; do
		if ! ns_forwards_${rr} ${ns}; then
			errors="${errors} ${rr}"
		fi
	done

	if [ -n "${errors}" ]; then
		echo >&2 "Unable to retrieve the following resource records from ${ns}: ${errors:1}"
		return 3
	fi

	# Is DNSSEC-aware
	return 2
}

# Sends an A query to the nameserver w/o DNSSEC
ns_is_online() {
	local ns=${1}

	dig @${ns} +nodnssec A ${TEST_DOMAIN} >/dev/null
}

# Resolving ${TEST_DOMAIN_FAIL} will fail if the nameserver is validating
ns_is_validating() {
	local ns=${1}

	dig @${ns} A ${TEST_DOMAIN_FAIL} | grep -q SERVFAIL
}

# Checks if we can retrieve the DNSKEY for this domain.
# dig will print the SOA if nothing was found
ns_forwards_DNSKEY() {
	local ns=${1}

	dig @${ns} DNSKEY ${TEST_DOMAIN} | grep -qv SOA
}

ns_forwards_DS() {
	local ns=${1}

	dig @${ns} DS ${TEST_DOMAIN} | grep -qv SOA
}

ns_forwards_RRSIG() {
	local ns=${1}

	dig @${ns} +dnssec A ${TEST_DOMAIN} | grep -q RRSIG
}

ns_supports_tcp() {
	local ns=${1}

	dig @${ns} +tcp A ${TEST_DOMAIN} >/dev/null || return 1
}

case "$1" in
	start)
		# Print a nicer messagen when unbound is already running
		if pidofproc -s unbound; then
			statusproc /usr/sbin/unbound
			exit 0
		fi

		eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)

		# Create control keys at first run
		if [ ! -r "/etc/unbound/unbound_control.key" ]; then
			unbound-control-setup -d /etc/unbound &>/dev/null
		fi

		# Update configuration files
		write_tuning_conf
		write_interfaces_conf
		write_forward_conf

		boot_mesg "Starting Unbound DNS Proxy..."
		loadproc /usr/sbin/unbound || exit $?

		# Make own hostname resolveable
		own_hostname

		# Update any known forwarding name servers
		update_forwarders

		# Update hosts
		update_hosts
		;;

	stop)
		boot_mesg "Stopping Unbound DNS Proxy..."
		killproc /usr/sbin/unbound
		;;

	restart)
		$0 stop
		sleep 1
		$0 start
		;;

	status)
		statusproc /usr/sbin/unbound
		;;

	update-forwarders)
		update_forwarders
		;;

	test-name-server)
		ns=${2}

		test_name_server ${ns}
		ret=${?}

		case "${ret}" in
			0)
				echo "${ns} is validating"
				;;
			2)
				echo "${ns} is DNSSEC-aware"
				;;
			3)
				echo "${ns} is NOT DNSSEC-aware"
				;;
			*)
				echo "Test failed for an unknown reason"
				;;
		esac

		if ns_supports_tcp ${ns}; then
			echo "${ns} supports TCP fallback"
		else
			echo "${ns} does not support TCP fallback"
		fi

		exit ${ret}
		;;

	*)
		echo "Usage: $0 {start|stop|restart|status|update-forwarders|test-name-server}"
		exit 1
		;;
esac

# End $rc_base/init.d/unbound
Commit	Line	Data
d0e5f71f ML	1	#!/bin/sh
	2	# Begin $rc_base/init.d/unbound
	3
	4	# Description : Unbound DNS resolver boot script for IPfire
	5	# Author : Marcel Lorenz <marcel.lorenz@ipfire.org>
d0e5f71f ML	6
	7	. /etc/sysconfig/rc
	8	. ${rc_functions}
	9
b29c97b1 AF	10	TEST_DOMAIN="ipfire.org"
	11
	12	# This domain will never validate
	13	TEST_DOMAIN_FAIL="dnssec-failed.org"
	14
b8f5eda8	15	USE_FORWARDERS=1
d0e5f71f	16
36792be6 MT	17	# Cache any local zones for 60 seconds
	18	LOCAL_TTL=60
	19
b8f5eda8 MT	20	# Load optional configuration
b8f5eda8 MT	21	[ -e "/etc/sysconfig/unbound" ] && . /etc/sysconfig/unbound
d0e5f71f ML	22
	23	function cidr() {
	24	local cidr nbits IFS;
	25	IFS=. read -r i1 i2 i3 i4 <<< ${1}
	26	IFS=. read -r m1 m2 m3 m4 <<< ${2}
	27	cidr=$(printf "%d.%d.%d.%d\n" "$((i1 & m1))" "$((i2 & m2))" "$((i3 & m3))" "$((i4 & m4))")
	28	nbits=0
	29	IFS=.
	30	for dec in $2 ; do
	31	case $dec in
	32	255) let nbits+=8;;
	33	254) let nbits+=7;;
	34	252) let nbits+=6;;
	35	248) let nbits+=5;;
	36	240) let nbits+=4;;
	37	224) let nbits+=3;;
	38	192) let nbits+=2;;
	39	128) let nbits+=1;;
	40	0);;
	41	*) echo "Error: $dec is not recognised"; exit 1
	42	esac
	43	done
	44	echo "${cidr}/${nbits}"
	45	}
	46
f75c279b AF	47	ip_address_revptr() {
	48	local addr=${1}
	49
	50	local a1 a2 a3 a4
	51	IFS=. read -r a1 a2 a3 a4 <<< ${addr}
	52
	53	echo "${a4}.${a3}.${a2}.${a1}.in-addr.arpa"
	54	}
	55
b8f5eda8 MT	56	read_name_servers() {
	57	local i
	58	for i in 1 2; do
	59	echo "$(</var/ipfire/red/dns${i})"
	60	done \| xargs echo
	61	}
	62
	63	config_header() {
	64	echo "# This file is automatically generated and any changes"
	65	echo "# will be overwritten. DO NOT EDIT!"
	66	echo
	67	}
	68
	69	update_forwarders() {
b29c97b1 AF	70	if [ "${USE_FORWARDERS}" = "1" -a -e "/var/ipfire/red/active" ]; then
	71	local forwarders
	72	local broken_forwarders
	73
	74	local ns
	75	for ns in $(read_name_servers); do
	76	test_name_server ${ns} &>/dev/null
	77	case "$?" in
	78	# Only use DNSSEC-validating or DNSSEC-aware name servers
	79	0\|2)
	80	forwarders="${forwarders} ${ns}"
	81	;;
	82	*)
	83	broken_forwarders="${broken_forwarders} ${ns}"
	84	;;
	85	esac
	86	done
	87
	88	# Show warning for any broken upstream name servers
	89	if [ -n "${broken_forwarders}" ]; then
	90	boot_mesg "Ignoring broken upstream name server(s): ${broken_forwarders:1}" ${WARNING}
	91	echo_warning
	92	fi
b8f5eda8	93
b29c97b1 AF	94	if [ -n "${broken_forwarders}" -a -z "${forwarders}" ]; then
	95	boot_mesg "Falling back to recursor mode" ${WARNING}
	96	echo_warning
b8f5eda8	97
b29c97b1 AF	98	elif [ -n "${forwarders}" ]; then
	99	boot_mesg "Configuring upstream name server(s): ${forwarders:1}" ${INFO}
	100	echo_ok
b8f5eda8	101
e24d6112	102	echo "${forwarders}" > /var/ipfire/red/dns
b29c97b1 AF	103	unbound-control -q forward ${forwarders}
	104	return 0
	105	fi
b8f5eda8	106	fi
b29c97b1 AF	107
b29c97b1 AF	108	# If forwarders cannot be used we run in recursor mode
e24d6112	109	echo "local recursor" > /var/ipfire/red/dns
b29c97b1	110	unbound-control -q forward off
b8f5eda8 MT	111	}
b8f5eda8 MT	112
f75c279b AF	113	own_hostname() {
f75c279b AF	114	local hostname=$(hostname -f)
0d7ca700	115	# 1.1.1.1 is reserved for unused green, skip this
f75c279b AF	116	if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then
	117	unbound-control -q local_data "${hostname} ${LOCAL_TTL} IN A ${GREEN_ADDRESS}"
	118	fi
	119
	120	local address
	121	for address in ${GREEN_ADDRESS} ${BLUE_ADDRESS} ${ORANGE_ADDRESS}; do
	122	[ -n "${address}" ] \|\| continue
	123	[ "${address}" = "1.1.1.1" ] && continue
	124
	125	address=$(ip_address_revptr ${address})
	126	unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${hostname}"
	127	done
	128	}
	129
36792be6 MT	130	update_hosts() {
	131	local enabled address hostname domainname
	132
	133	while IFS="," read -r enabled address hostname domainname; do
	134	[ "${enabled}" = "on" ] \|\| continue
	135
	136	# Build FQDN
	137	local fqdn="${hostname}.${domainname}"
	138
	139	unbound-control -q local_data "${fqdn} ${LOCAL_TTL} IN A ${address}"
f75c279b	140
868d2a1f MT	141	# Skip reverse resolution if the address equals the GREEN address
	142	[ "${address}" = "${GREEN_ADDRESS}" ] && continue
	143
f75c279b AF	144	# Add RDNS
	145	address=$(ip_address_revptr ${address})
	146	unbound-control -q local_data "${address} ${LOCAL_TTL} IN PTR ${fqdn}"
36792be6 MT	147	done < /var/ipfire/main/hosts
	148	}
	149
b8f5eda8 MT	150	write_interfaces_conf() {
	151	(
	152	config_header
	153
0d7ca700 AF	154	# 1.1.1.1 is reserved for unused green
0d7ca700 AF	155	if [ -n "${GREEN_ADDRESS}" -a "${GREEN_ADDRESS}" != "1.1.1.1" ]; then
d221f41f	156	echo "# allow access from GREEN"
b8f5eda8 MT	157	echo "access-control: $(cidr ${GREEN_NETADDRESS} ${GREEN_NETMASK}) allow"
	158	fi
	159
	160	if [ -n "${BLUE_ADDRESS}" ]; then
d221f41f	161	echo "# allow access from BLUE"
b8f5eda8 MT	162	echo "access-control: $(cidr ${BLUE_NETADDRESS} ${BLUE_NETMASK}) allow"
	163	fi
	164	) > /etc/unbound/interfaces.conf
	165	}
	166
	167	write_forward_conf() {
	168	(
	169	config_header
	170
f8aa041f MT	171	local insecure_zones
f8aa041f MT	172
b8f5eda8 MT	173	local enabled zone server remark
	174	while IFS="," read -r enabled zone server remark; do
	175	# Line must be enabled.
	176	[ "${enabled}" = "on" ] \|\| continue
	177
f8aa041f MT	178	# Zones that end with .local are commonly used for internal
	179	# zones and therefore not signed
	180	case "${zone}" in
	181	*.local)
	182	insecure_zones="${insecure_zones} ${zone}"
	183	;;
	184	esac
	185
b8f5eda8 MT	186	echo "forward-zone:"
	187	echo " name: ${zone}"
	188	echo " forward-addr: ${server}"
	189	echo
	190	done < /var/ipfire/dnsforward/config
f8aa041f MT	191
	192	if [ -n "${insecure_zones}" ]; then
	193	echo "server:"
	194
	195	for zone in ${insecure_zones}; do
	196	echo " domain-insecure: ${zone}"
	197	done
	198	fi
b8f5eda8 MT	199	) > /etc/unbound/forward.conf
	200	}
	201
b658a451 MT	202	write_tuning_conf() {
	203	# https://www.unbound.net/documentation/howto_optimise.html
	204
	205	# Determine number of online processors
	206	local processors=$(getconf _NPROCESSORS_ONLN)
	207
	208	# Determine number of slabs
	209	local slabs=1
	210	while [ ${slabs} -lt ${processors} ]; do
	211	slabs=$(( ${slabs} * 2 ))
	212	done
	213
	214	# Determine amount of system memory
	215	local mem=$(get_memory_amount)
	216
	217	# In the worst case scenario, unbound can use double the
	218	# amount of memory allocated to a cache due to malloc overhead
	219
	220	# Large systems with more than 2GB of RAM
	221	if [ ${mem} -ge 2048 ]; then
	222	mem=128
	223
	224	# Small systems with less than 256MB of RAM
	225	elif [ ${mem} -le 256 ]; then
	226	mem=8
	227
	228	# Everything else
	229	else
	230	mem=32
	231	fi
	232
	233	(
	234	config_header
	235
	236	# We run one thread per processor
	237	echo "num-threads: ${processors}"
	238
	239	# Adjust number of slabs
	240	echo "infra-cache-slabs: ${slabs}"
	241	echo "key-cache-slabs: ${slabs}"
	242	echo "msg-cache-slabs: ${slabs}"
	243	echo "rrset-cache-slabs: ${slabs}"
	244
	245	# Slice up the cache
	246	echo "rrset-cache-size: $(( ${mem} / 2 ))m"
	247	echo "msg-cache-size: $(( ${mem} / 4 ))m"
	248	echo "key-cache-size: $(( ${mem} / 4 ))m"
	249	) > /etc/unbound/tuning.conf
	250	}
	251
	252	get_memory_amount() {
	253	local key val unit
	254
	255	while read -r key val unit; do
	256	case "${key}" in
	257	MemTotal:*)
	258	# Convert to MB
	259	echo "$(( ${val} / 1024 ))"
	260	break
	261	;;
	262	esac
	263	done < /proc/meminfo
	264	}
b8f5eda8	265
b29c97b1 AF	266	test_name_server() {
	267	local ns=${1}
	268
	269	# Return codes:
	270	# 0 DNSSEC validating
	271	# 1 Error: unreachable, etc.
	272	# 2 DNSSEC aware
	273	# 3 NOT DNSSEC-aware
	274
	275	# Exit when the server is not reachable
	276	ns_is_online ${ns} \|\| return 1
	277
	278	# Return 0 if validating
	279	ns_is_validating ${ns} && return 0
	280
	281	local errors
	282	for rr in DNSKEY DS RRSIG; do
	283	if ! ns_forwards_${rr} ${ns}; then
	284	errors="${errors} ${rr}"
	285	fi
	286	done
	287
	288	if [ -n "${errors}" ]; then
	289	echo >&2 "Unable to retrieve the following resource records from ${ns}: ${errors:1}"
	290	return 3
	291	fi
	292
	293	# Is DNSSEC-aware
	294	return 2
	295	}
	296
	297	# Sends an A query to the nameserver w/o DNSSEC
	298	ns_is_online() {
	299	local ns=${1}
	300
	301	dig @${ns} +nodnssec A ${TEST_DOMAIN} >/dev/null
	302	}
	303
	304	# Resolving ${TEST_DOMAIN_FAIL} will fail if the nameserver is validating
	305	ns_is_validating() {
	306	local ns=${1}
	307
	308	dig @${ns} A ${TEST_DOMAIN_FAIL} \| grep -q SERVFAIL
	309	}
	310
	311	# Checks if we can retrieve the DNSKEY for this domain.
	312	# dig will print the SOA if nothing was found
	313	ns_forwards_DNSKEY() {
	314	local ns=${1}
	315
	316	dig @${ns} DNSKEY ${TEST_DOMAIN} \| grep -qv SOA
	317	}
	318
	319	ns_forwards_DS() {
	320	local ns=${1}
	321
	322	dig @${ns} DS ${TEST_DOMAIN} \| grep -qv SOA
	323	}
	324
	325	ns_forwards_RRSIG() {
	326	local ns=${1}
	327
	328	dig @${ns} +dnssec A ${TEST_DOMAIN} \| grep -q RRSIG
	329	}
330
331	ns_supports_tcp() {
332	local ns=${1}
333
334	dig @${ns} +tcp A ${TEST_DOMAIN} >/dev/null \|\| return 1
335	}
336
d0e5f71f ML	337	case "$1" in
d0e5f71f ML	338	start)
80bc6022 MT	339	# Print a nicer messagen when unbound is already running
	340	if pidofproc -s unbound; then
	341	statusproc /usr/sbin/unbound
	342	exit 0
	343	fi
	344
b8f5eda8	345	eval $(/usr/local/bin/readhash /var/ipfire/ethernet/settings)
d0e5f71f	346
b8f5eda8 MT	347	# Create control keys at first run
	348	if [ ! -r "/etc/unbound/unbound_control.key" ]; then
	349	unbound-control-setup -d /etc/unbound &>/dev/null
	350	fi
	351
	352	# Update configuration files
b658a451	353	write_tuning_conf
b8f5eda8 MT	354	write_interfaces_conf
	355	write_forward_conf
	356
	357	boot_mesg "Starting Unbound DNS Proxy..."
	358	loadproc /usr/sbin/unbound \|\| exit $?
	359
f75c279b AF	360	# Make own hostname resolveable
	361	own_hostname
	362
b8f5eda8 MT	363	# Update any known forwarding name servers
b8f5eda8 MT	364	update_forwarders
36792be6 MT	365
	366	# Update hosts
	367	update_hosts
b8f5eda8	368	;;
d0e5f71f ML	369
d0e5f71f ML	370	stop)
b8f5eda8 MT	371	boot_mesg "Stopping Unbound DNS Proxy..."
	372	killproc /usr/sbin/unbound
	373	;;
d0e5f71f ML	374
d0e5f71f ML	375	restart)
b8f5eda8 MT	376	$0 stop
	377	sleep 1
	378	$0 start
	379	;;
d0e5f71f ML	380
d0e5f71f ML	381	status)
b8f5eda8	382	statusproc /usr/sbin/unbound
b8f5eda8 MT	383	;;
	384
	385	update-forwarders)
	386	update_forwarders
	387	;;
d0e5f71f	388
b29c97b1 AF	389	test-name-server)
	390	ns=${2}
	391
	392	test_name_server ${ns}
	393	ret=${?}
	394
	395	case "${ret}" in
	396	0)
	397	echo "${ns} is validating"
	398	;;
	399	2)
	400	echo "${ns} is DNSSEC-aware"
	401	;;
	402	3)
	403	echo "${ns} is NOT DNSSEC-aware"
	404	;;
	405	*)
	406	echo "Test failed for an unknown reason"
	407	;;
	408	esac
	409
	410	if ns_supports_tcp ${ns}; then
	411	echo "${ns} supports TCP fallback"
	412	else
	413	echo "${ns} does not support TCP fallback"
	414	fi
	415
	416	exit ${ret}
	417	;;
	418
d0e5f71f	419	*)
b29c97b1	420	echo "Usage: $0 {start\|stop\|restart\|status\|update-forwarders\|test-name-server}"
b8f5eda8 MT	421	exit 1
b8f5eda8 MT	422	;;
d0e5f71f ML	423	esac
	424
	425	# End $rc_base/init.d/unbound