#!/bin/sh ############################################################################## # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License version 2 as # published by the Free Software Foundation. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # Copyright (C) 2016 Eric Luehrsen # ############################################################################## # # This builds the basic UCI components currently supported for Unbound. It is # intentionally NOT comprehensive and bundles a lot of options. The UCI is to # be a simpler presentation of the total Unbound conf set. # ############################################################################## UNBOUND_B_CONTROL=0 UNBOUND_B_SLAAC6_MAC=0 UNBOUND_B_DNSSEC=0 UNBOUND_B_DNS64=0 UNBOUND_B_GATE_NAME=0 UNBOUND_B_HIDE_BIND=1 UNBOUND_B_LOCL_BLCK=0 UNBOUND_B_LOCL_SERV=1 UNBOUND_B_MAN_CONF=0 UNBOUND_B_NTP_BOOT=1 UNBOUND_B_PRIV_BLCK=1 UNBOUND_B_QUERY_MIN=0 UNBOUND_B_QRY_MINST=0 UNBOUND_D_DOMAIN_TYPE=static UNBOUND_D_DHCP_LINK=none UNBOUND_D_LAN_FQDN=0 UNBOUND_D_PROTOCOL=mixed UNBOUND_D_RESOURCE=small UNBOUND_D_RECURSION=passive UNBOUND_D_WAN_FQDN=0 UNBOUND_IP_DNS64="64:ff9b::/96" UNBOUND_N_EDNS_SIZE=1280 UNBOUND_N_FWD_PORTS="" UNBOUND_N_RX_PORT=53 UNBOUND_N_ROOT_AGE=28 UNBOUND_TTL_MIN=120 UNBOUND_TXT_DOMAIN=lan UNBOUND_TXT_FWD_ZONE="" UNBOUND_TXT_HOSTNAME=thisrouter ############################################################################## UNBOUND_LIBDIR=/usr/lib/unbound UNBOUND_VARDIR=/var/lib/unbound UNBOUND_PIDFILE=/var/run/unbound.pid UNBOUND_SRV_CONF=$UNBOUND_VARDIR/unbound_srv.conf UNBOUND_EXT_CONF=$UNBOUND_VARDIR/unbound_ext.conf UNBOUND_DHCP_CONF=$UNBOUND_VARDIR/unbound_dhcp.conf UNBOUND_CONFFILE=$UNBOUND_VARDIR/unbound.conf UNBOUND_KEYFILE=$UNBOUND_VARDIR/root.key UNBOUND_HINTFILE=$UNBOUND_VARDIR/root.hints UNBOUND_TIMEFILE=$UNBOUND_VARDIR/unbound.time ############################################################################## UNBOUND_ANCHOR=/usr/sbin/unbound-anchor UNBOUND_CONTROL=/usr/sbin/unbound-control UNBOUND_CONTROL_CFG="$UNBOUND_CONTROL -c $UNBOUND_CONFFILE" ############################################################################## . /lib/functions.sh . /lib/functions/network.sh . $UNBOUND_LIBDIR/dnsmasq.sh . $UNBOUND_LIBDIR/iptools.sh . $UNBOUND_LIBDIR/rootzone.sh ############################################################################## create_interface_dns() { local cfg="$1" local ipcommand logint ignore ifname ifdashname local name names address addresses local ulaprefix if_fqdn host_fqdn mode mode_ptr # Create local-data: references for this hosts interfaces (router). config_get logint "$cfg" interface config_get_bool ignore "$cfg" ignore 0 network_get_device ifname "$cfg" ifdashname="${ifname//./-}" ipcommand="ip -o address show $ifname" addresses="$($ipcommand | awk '/inet/{sub(/\/.*/,"",$4); print $4}')" ulaprefix="$(uci_get network @globals[0] ula_prefix)" host_fqdn="$UNBOUND_TXT_HOSTNAME.$UNBOUND_TXT_DOMAIN" if_fqdn="$ifdashname.$host_fqdn" if [ "$ignore" -gt 0 ] ; then mode="$UNBOUND_D_WAN_FQDN" else mode="$UNBOUND_D_LAN_FQDN" fi case "$mode" in 3) mode_ptr="$host_fqdn" names="$host_fqdn $UNBOUND_TXT_HOSTNAME" ;; 4) mode_ptr="$if_fqdn" names="$if_fqdn $host_fqdn $UNBOUND_TXT_HOSTNAME" ;; *) mode_ptr="$UNBOUND_TXT_HOSTNAME" names="$UNBOUND_TXT_HOSTNAME" ;; esac if [ "$mode" -gt 1 ] ; then { for address in $addresses ; do case $address in fe80:*|169.254.*) echo " # note link address $address" ;; [1-9a-f]*:*[0-9a-f]) # GA and ULA IP6 for HOST IN AAA records (ip command is robust) for name in $names ; do echo " local-data: \"$name. 120 IN AAAA $address\"" done echo " local-data-ptr: \"$address 120 $mode_ptr\"" ;; [1-9]*.*[0-9]) # Old fashioned HOST IN A records for name in $names ; do echo " local-data: \"$name. 120 IN A $address\"" done echo " local-data-ptr: \"$address 120 $mode_ptr\"" ;; esac done echo } >> $UNBOUND_CONFFILE elif [ "$mode" -gt 0 ] ; then { for address in $addresses ; do case $address in fe80:*|169.254.*) echo " # note link address $address" ;; "${ulaprefix%%:/*}"*) # Only this networks ULA and only hostname echo " local-data: \"$UNBOUND_TXT_HOSTNAME. 120 IN AAAA $address\"" echo " local-data-ptr: \"$address 120 $UNBOUND_TXT_HOSTNAME\"" ;; [1-9]*.*[0-9]) echo " local-data: \"$UNBOUND_TXT_HOSTNAME. 120 IN A $address\"" echo " local-data-ptr: \"$address 120 $UNBOUND_TXT_HOSTNAME\"" ;; esac done echo } >> $UNBOUND_CONFFILE fi } ############################################################################## create_access_control() { local cfg="$1" local subnets subnets4 subnets6 local validip4 validip6 network_get_subnets subnets4 "$cfg" network_get_subnets6 subnets6 "$cfg" subnets="$subnets4 $subnets6" if [ -n "$subnets" ] ; then for subnet in $subnets ; do validip4=$( valid_subnet4 $subnet ) validip6=$( valid_subnet6 $subnet ) if [ "$validip4" = "ok" -o "$validip6" = "ok" ] ; then # For each "network" UCI add "access-control:" white list for queries echo " access-control: $subnet allow" >> $UNBOUND_CONFFILE fi done fi } ############################################################################## create_domain_insecure() { echo " domain-insecure: \"$1\"" >> $UNBOUND_CONFFILE } ############################################################################## unbound_mkdir() { local resolvsym=0 local dhcp_origin=$( uci get dhcp.@odhcpd[0].leasefile ) local dhcp_dir=$( dirname "$dhcp_origin" ) if [ ! -x /usr/sbin/dnsmasq -o ! -x /etc/init.d/dnsmasq ] ; then resolvsym=1 else /etc/init.d/dnsmasq enabled || resolvsym=1 fi if [ "$resolvsym" -gt 0 ] ; then rm -f /tmp/resolv.conf { # Set resolver file to local but not if /etc/init.d/dnsmasq will do it. echo "nameserver 127.0.0.1" echo "nameserver ::1" echo "search $UNBOUND_TXT_DOMAIN" } > /tmp/resolv.conf fi if [ "$UNBOUND_D_DHCP_LINK" = "odhcpd" -a ! -d "$dhcp_dir" ] ; then # make sure odhcpd has a directory to write (not done itself, yet) mkdir -p "$dhcp_dir" fi mkdir -p $UNBOUND_VARDIR rm -f $UNBOUND_VARDIR/dhcp_* touch $UNBOUND_CONFFILE touch $UNBOUND_SRV_CONF touch $UNBOUND_EXT_CONF cp -p /etc/unbound/* $UNBOUND_VARDIR/ if [ ! -f $UNBOUND_HINTFILE ] ; then if [ -f /usr/share/dns/root.hints ] ; then # Debian-like package dns-root-data cp -p /usr/share/dns/root.hints $UNBOUND_HINTFILE else logger -t unbound -s "iterator will use built-in root hints" fi fi if [ ! -f $UNBOUND_KEYFILE ] ; then if [ -f /usr/share/dns/root.key ] ; then # Debian-like package dns-root-data cp -p /usr/share/dns/root.key $UNBOUND_KEYFILE elif [ -x "$UNBOUND_ANCHOR" ] ; then $UNBOUND_ANCHOR -a $UNBOUND_KEYFILE else logger -t unbound -s "validator will use built-in trust anchor" fi fi # Ensure access and prepare to jail chown -R unbound:unbound $UNBOUND_VARDIR chmod 775 $UNBOUND_VARDIR chmod 664 $UNBOUND_VARDIR/* } ############################################################################## unbound_control() { if [ "$UNBOUND_B_CONTROL" -gt 0 ] ; then { # Enable remote control tool, but only at local host for security # You can hand write fancier encrypted access with /etc/..._ext.conf echo "remote-control:" echo " control-enable: yes" echo " control-use-cert: no" echo " control-interface: 127.0.0.1" echo " control-interface: ::1" echo } >> $UNBOUND_CONFFILE fi { # Amend your own extended clauses here like forward zones or disable # above (local, no encryption) and amend your own remote encrypted control echo echo "include: $UNBOUND_EXT_CONF" >> $UNBOUND_CONFFILE echo } >> $UNBOUND_CONFFILE } ############################################################################## unbound_conf() { local cfg="$1" local rt_mem rt_conn modulestring { # Make fresh conf file echo "# $UNBOUND_CONFFILE generated by UCI $( date )" echo } > $UNBOUND_CONFFILE { # No threading echo "server:" echo " username: unbound" echo " num-threads: 1" echo " msg-cache-slabs: 1" echo " rrset-cache-slabs: 1" echo " infra-cache-slabs: 1" echo " key-cache-slabs: 1" echo } >> $UNBOUND_CONFFILE { # Logging echo " verbosity: 1" echo " statistics-interval: 0" echo " statistics-cumulative: no" echo " extended-statistics: no" echo } >> $UNBOUND_CONFFILE { # Interfaces (access contol "option local_service") echo " interface: 0.0.0.0" echo " interface: ::0" echo " outgoing-interface: 0.0.0.0" echo " outgoing-interface: ::0" echo } >> $UNBOUND_CONFFILE case "$UNBOUND_D_PROTOCOL" in ip4_only) { echo " do-ip4: yes" echo " do-ip6: no" } >> $UNBOUND_CONFFILE ;; ip6_only) { echo " do-ip4: no" echo " do-ip6: yes" } >> $UNBOUND_CONFFILE ;; ip6_prefer) { echo " do-ip4: yes" echo " do-ip6: yes" echo " prefer-ip6: yes" } >> $UNBOUND_CONFFILE ;; *) { echo " do-ip4: yes" echo " do-ip6: yes" } >> $UNBOUND_CONFFILE ;; esac { # protocol level tuning echo " edns-buffer-size: $UNBOUND_N_EDNS_SIZE" echo " msg-buffer-size: 8192" echo " port: $UNBOUND_N_RX_PORT" echo " outgoing-port-permit: 10240-65535" echo } >> $UNBOUND_CONFFILE { # Other harding and options for an embedded router echo " harden-short-bufsize: yes" echo " harden-large-queries: yes" echo " harden-glue: yes" echo " harden-below-nxdomain: no" echo " harden-referral-path: no" echo " use-caps-for-id: no" echo } >> $UNBOUND_CONFFILE { # Default Files echo " use-syslog: yes" echo " chroot: \"$UNBOUND_VARDIR\"" echo " directory: \"$UNBOUND_VARDIR\"" echo " pidfile: \"$UNBOUND_PIDFILE\"" } >> $UNBOUND_CONFFILE if [ -f "$UNBOUND_HINTFILE" ] ; then # Optional hints if found echo " root-hints: \"$UNBOUND_HINTFILE\"" >> $UNBOUND_CONFFILE fi if [ "$UNBOUND_B_DNSSEC" -gt 0 -a -f "$UNBOUND_KEYFILE" ] ; then { echo " auto-trust-anchor-file: \"$UNBOUND_KEYFILE\"" echo } >> $UNBOUND_CONFFILE else echo >> $UNBOUND_CONFFILE fi case "$UNBOUND_D_RESOURCE" in # Tiny - Unbound's recommended cheap hardware config tiny) rt_mem=1 ; rt_conn=1 ;; # Small - Half RRCACHE and open ports small) rt_mem=8 ; rt_conn=5 ;; # Medium - Nearly default but with some added balancintg medium) rt_mem=16 ; rt_conn=10 ;; # Large - Double medium large) rt_mem=32 ; rt_conn=10 ;; # Whatever unbound does *) rt_mem=0 ; rt_conn=0 ;; esac if [ "$rt_mem" -gt 0 ] ; then { # Set memory sizing parameters echo " outgoing-range: $(($rt_conn*64))" echo " num-queries-per-thread: $(($rt_conn*32))" echo " outgoing-num-tcp: $(($rt_conn))" echo " incoming-num-tcp: $(($rt_conn))" echo " rrset-cache-size: $(($rt_mem*256))k" echo " msg-cache-size: $(($rt_mem*128))k" echo " key-cache-size: $(($rt_mem*128))k" echo " neg-cache-size: $(($rt_mem*64))k" echo " infra-cache-numhosts: $(($rt_mem*256))" echo } >> $UNBOUND_CONFFILE else logger -t unbound -s "default memory resource consumption" fi # Assembly of module-config: options is tricky; order matters modulestring="iterator" if [ "$UNBOUND_B_DNSSEC" -gt 0 ] ; then if [ ! -f "$UNBOUND_TIMEFILE" -a "$UNBOUND_B_NTP_BOOT" -gt 0 ] ; then # DNSSEC chicken and egg with getting NTP time echo " val-override-date: -1" >> $UNBOUND_CONFFILE fi { echo " harden-dnssec-stripped: yes" echo " val-clean-additional: yes" echo " ignore-cd-flag: yes" } >> $UNBOUND_CONFFILE modulestring="validator $modulestring" fi if [ "$UNBOUND_B_DNS64" -gt 0 ] ; then echo " dns64-prefix: $UNBOUND_IP_DNS64" >> $UNBOUND_CONFFILE modulestring="dns64 $modulestring" fi { # Print final module string echo " module-config: \"$modulestring\"" echo } >> $UNBOUND_CONFFILE if [ "$UNBOUND_B_QRY_MINST" -gt 0 -a "$UNBOUND_B_QUERY_MIN" -gt 0 ] ; then { # Some query privacy but "strict" will break some name servers echo " qname-minimisation: yes" echo " qname-minimisation-strict: yes" } >> $UNBOUND_CONFFILE elif [ "$UNBOUND_B_QUERY_MIN" -gt 0 ] ; then # Minor improvement on query privacy echo " qname-minimisation: yes" >> $UNBOUND_CONFFILE else echo " qname-minimisation: no" >> $UNBOUND_CONFFILE fi case "$UNBOUND_D_RECURSION" in passive) { echo " prefetch: no" echo " prefetch-key: no" echo " target-fetch-policy: \"0 0 0 0 0\"" echo } >> $UNBOUND_CONFFILE ;; aggressive) { echo " prefetch: yes" echo " prefetch-key: yes" echo " target-fetch-policy: \"3 2 1 0 0\"" echo } >> $UNBOUND_CONFFILE ;; *) logger -t unbound -s "default recursion configuration" ;; esac { # Reload records more than 10 hours old # DNSSEC 5 minute bogus cool down before retry # Adaptive infrastructure info kept for 15 minutes echo " cache-min-ttl: $UNBOUND_TTL_MIN" echo " cache-max-ttl: 36000" echo " val-bogus-ttl: 300" echo " infra-host-ttl: 900" echo } >> $UNBOUND_CONFFILE if [ "$UNBOUND_B_HIDE_BIND" -gt 0 ] ; then { # Block server id and version DNS TXT records echo " hide-identity: yes" echo " hide-version: yes" echo } >> $UNBOUND_CONFFILE fi if [ "$UNBOUND_B_PRIV_BLCK" -gt 0 ] ; then { # Remove _upstream_ or global reponses with private addresses. # Unbounds own "local zone" and "forward zone" may still use these. # RFC1918, RFC3927, RFC4291, RFC6598, RFC6890 echo " private-address: 10.0.0.0/8" echo " private-address: 100.64.0.0/10" echo " private-address: 169.254.0.0/16" echo " private-address: 172.16.0.0/12" echo " private-address: 192.168.0.0/16" echo " private-address: fc00::/8" echo " private-address: fd00::/8" echo " private-address: fe80::/10" } >> $UNBOUND_CONFFILE fi if [ "$UNBOUND_B_LOCL_BLCK" -gt 0 ] ; then { # Remove DNS reponses from upstream with loopback IP # Black hole DNS method for ad blocking, so consider... echo " private-address: 127.0.0.0/8" echo " private-address: ::1/128" echo } >> $UNBOUND_CONFFILE else echo >> $UNBOUND_CONFFILE fi # Except and accept domains as insecure (DNSSEC); work around broken domains config_list_foreach "$cfg" "domain_insecure" create_domain_insecure echo >> $UNBOUND_CONFFILE } ############################################################################## unbound_access() { # TODO: Unbound 1.6.0 added "tags" and "views", so we can add tags to # each access-control IP block, and then divert access. # -- "guest" WIFI will not be allowed to see local zone data # -- "child" LAN can black whole a list of domains to http~deadpixel if [ "$UNBOUND_B_LOCL_SERV" -gt 0 ] ; then # Only respond to queries from which this device has an interface. # Prevent DNS amplification attacks by not responding to the universe. config_load network config_foreach create_access_control interface { echo " access-control: 127.0.0.0/8 allow" echo " access-control: ::1/128 allow" echo " access-control: fe80::/10 allow" echo } >> $UNBOUND_CONFFILE else { echo " access-control: 0.0.0.0/0 allow" echo " access-control: ::0/0 allow" echo } >> $UNBOUND_CONFFILE fi { # Amend your own "server:" stuff here echo " include: $UNBOUND_SRV_CONF" echo } >> $UNBOUND_CONFFILE } ############################################################################## unbound_adblock() { # TODO: Unbound 1.6.0 added "tags" and "views"; lets work with adblock team local adb_enabled adb_file if [ ! -x /usr/bin/adblock.sh -o ! -x /etc/init.d/adblock ] ; then adb_enabled=0 else /etc/init.d/adblock enabled && adb_enabled=1 || adb_enabled=0 fi if [ "$adb_enabled" -gt 0 ] ; then { # Pull in your selected openwrt/pacakges/net/adblock generated lists for adb_file in $UNBOUND_VARDIR/adb_list.* ; do echo " include: $adb_file" done echo } >> $UNBOUND_CONFFILE fi } ############################################################################## unbound_hostname() { if [ -n "$UNBOUND_TXT_DOMAIN" ] ; then { # TODO: Unbound 1.6.0 added "tags" and "views" and we could make # domains by interface to prevent DNS from "guest" to "home" echo " local-zone: $UNBOUND_TXT_DOMAIN. $UNBOUND_D_DOMAIN_TYPE" echo " domain-insecure: $UNBOUND_TXT_DOMAIN" echo " private-domain: $UNBOUND_TXT_DOMAIN" echo echo " local-zone: $UNBOUND_TXT_HOSTNAME. $UNBOUND_D_DOMAIN_TYPE" echo " domain-insecure: $UNBOUND_TXT_HOSTNAME" echo " private-domain: $UNBOUND_TXT_HOSTNAME" echo } >> $UNBOUND_CONFFILE case "$UNBOUND_D_DOMAIN_TYPE" in deny|inform_deny|refuse|static) { # avoid upstream involvement in RFC6762 like responses (link only) echo " local-zone: local. $UNBOUND_D_DOMAIN_TYPE" echo " domain-insecure: local" echo " private-domain: local" echo } >> $UNBOUND_CONFFILE ;; esac if [ "$UNBOUND_D_LAN_FQDN" -gt 0 -o "$UNBOUND_D_WAN_FQDN" -gt 0 ] ; then config_load dhcp config_foreach create_interface_dns dhcp fi if [ -f "$UNBOUND_DHCP_CONF" ] ; then { # Seed DHCP records because dhcp scripts trigger externally # Incremental Unbound restarts may drop unbound-control add records echo " include: $UNBOUND_DHCP_CONF" echo } >> $UNBOUND_CONFFILE fi fi } ############################################################################## unbound_uci() { local cfg="$1" local dnsmasqpath hostnm hostnm="$(uci_get system.@system[0].hostname | awk '{print tolower($0)}')" UNBOUND_TXT_HOSTNAME=${hostnm:-thisrouter} config_get_bool UNBOUND_B_SLAAC6_MAC "$cfg" dhcp4_slaac6 0 config_get_bool UNBOUND_B_DNS64 "$cfg" dns64 0 config_get_bool UNBOUND_B_HIDE_BIND "$cfg" hide_binddata 1 config_get_bool UNBOUND_B_LOCL_SERV "$cfg" localservice 1 config_get_bool UNBOUND_B_MAN_CONF "$cfg" manual_conf 0 config_get_bool UNBOUND_B_QUERY_MIN "$cfg" query_minimize 0 config_get_bool UNBOUND_B_QRY_MINST "$cfg" query_min_strict 0 config_get_bool UNBOUND_B_PRIV_BLCK "$cfg" rebind_protection 1 config_get_bool UNBOUND_B_LOCL_BLCK "$cfg" rebind_localhost 0 config_get_bool UNBOUND_B_CONTROL "$cfg" unbound_control 0 config_get_bool UNBOUND_B_DNSSEC "$cfg" validator 0 config_get_bool UNBOUND_B_NTP_BOOT "$cfg" validator_ntp 1 config_get UNBOUND_IP_DNS64 "$cfg" dns64_prefix "64:ff9b::/96" config_get UNBOUND_N_EDNS_SIZE "$cfg" edns_size 1280 config_get UNBOUND_N_RX_PORT "$cfg" listen_port 53 config_get UNBOUND_N_ROOT_AGE "$cfg" root_age 7 config_get UNBOUND_D_DOMAIN_TYPE "$cfg" domain_type static config_get UNBOUND_D_DHCP_LINK "$cfg" dhcp_link none config_get UNBOUND_D_LAN_FQDN "$cfg" add_local_fqdn 0 config_get UNBOUND_D_PROTOCOL "$cfg" protocol mixed config_get UNBOUND_D_RECURSION "$cfg" recursion passive config_get UNBOUND_D_RESOURCE "$cfg" resource small config_get UNBOUND_D_WAN_FQDN "$cfg" add_wan_fqdn 0 config_get UNBOUND_TTL_MIN "$cfg" ttl_min 120 config_get UNBOUND_TXT_DOMAIN "$cfg" domain lan if [ "$UNBOUND_D_DHCP_LINK" = "none" ] ; then config_get_bool UNBOUND_B_DNSMASQ "$cfg" dnsmasq_link_dns 0 if [ "$UNBOUND_B_DNSMASQ" -gt 0 ] ; then UNBOUND_D_DHCP_LINK=dnsmasq logger -t unbound -s "Please use 'dhcp_link' selector instead" fi fi if [ "$UNBOUND_D_DHCP_LINK" = "dnsmasq" ] ; then if [ ! -x /usr/sbin/dnsmasq -o ! -x /etc/init.d/dnsmasq ] ; then UNBOUND_D_DHCP_LINK=none else /etc/init.d/dnsmasq enabled || UNBOUND_D_DHCP_LINK=none fi if [ "$UNBOUND_D_DHCP_LINK" = "none" ] ; then logger -t unbound -s "cannot forward to dnsmasq" fi fi if [ "$UNBOUND_D_DHCP_LINK" = "odhcpd" ] ; then if [ ! -x /usr/sbin/odhcpd -o ! -x /etc/init.d/odhcpd ] ; then UNBOUND_D_DHCP_LINK=none else /etc/init.d/odhcpd enabled || UNBOUND_D_DHCP_LINK=none fi if [ "$UNBOUND_D_DHCP_LINK" = "none" ] ; then logger -t unbound -s "cannot receive records from odhcpd" fi fi if [ "$UNBOUND_N_EDNS_SIZE" -lt 512 \ -o 4096 -lt "$UNBOUND_N_EDNS_SIZE" ] ; then # exceeds range, back to default UNBOUND_N_EDNS_SIZE=1280 fi if [ "$UNBOUND_N_RX_PORT" -lt 1024 \ -o 10240 -lt "$UNBOUND_N_RX_PORT" ] ; then # special port or in 5 digits, back to default UNBOUND_N_RX_PORT=53 fi if [ "$UNBOUND_TTL_MIN" -gt 1800 ] ; then # that could have had awful side effects UNBOUND_TTL_MIN=300 fi } ############################################################################## unbound_start() { config_load unbound config_foreach unbound_uci unbound unbound_mkdir if [ "$UNBOUND_B_MAN_CONF" -eq 0 ] ; then unbound_conf unbound_access unbound_adblock if [ "$UNBOUND_D_DHCP_LINK" = "dnsmasq" ] ; then dnsmasq_link else unbound_hostname fi unbound_control fi } ############################################################################## unbound_stop() { local resolvsym=0 rootzone_update if [ ! -x /usr/sbin/dnsmasq -o ! -x /etc/init.d/dnsmasq ] ; then resolvsym=1 else /etc/init.d/dnsmasq enabled || resolvsym=1 fi if [ "$resolvsym" -gt 0 ] ; then # set resolver file to normal, but don't stomp on dnsmasq rm -f /tmp/resolv.conf ln -s /tmp/resolv.conf.auto /tmp/resolv.conf fi # Unbound has a log dump which takes time; don't overlap a "restart" sleep 1 } ##############################################################################