2 ##############################################################################
4 # This program is free software; you can redistribute it and/or modify
5 # it under the terms of the GNU General Public License version 2 as
6 # published by the Free Software Foundation.
8 # This program is distributed in the hope that it will be useful,
9 # but WITHOUT ANY WARRANTY; without even the implied warranty of
10 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 # GNU General Public License for more details.
13 # Copyright (C) 2016 Eric Luehrsen
15 ##############################################################################
17 # Unbound is a full featured recursive server with many options. The UCI
18 # provided tries to simplify and bundle options. This should make Unbound
19 # easier to deploy. Even light duty routers may resolve recursively instead of
20 # depending on a stub with the ISP. The UCI also attempts to replicate dnsmasq
21 # features as used in base LEDE/OpenWrt. If there is a desire for more
22 # detailed tuning, then manual conf file overrides are also made available.
24 ##############################################################################
27 UNBOUND_B_SLAAC6_MAC
=0
40 UNBOUND_D_DOMAIN_TYPE
=static
41 UNBOUND_D_DHCP_LINK
=none
44 UNBOUND_D_PROTOCOL
=mixed
45 UNBOUND_D_RESOURCE
=small
46 UNBOUND_D_RECURSION
=passive
49 UNBOUND_IP_DNS64
="64:ff9b::/96"
51 UNBOUND_N_EDNS_SIZE
=1280
52 UNBOUND_N_FWD_PORTS
=""
58 UNBOUND_TXT_DOMAIN
=lan
59 UNBOUND_TXT_FWD_ZONE
=""
60 UNBOUND_TXT_HOSTNAME
=thisrouter
62 ##############################################################################
64 # keep track of local-domain: assignments during inserted resource records
65 UNBOUND_LIST_DOMAINS
=""
67 ##############################################################################
69 UNBOUND_LIBDIR
=/usr
/lib
/unbound
70 UNBOUND_VARDIR
=/var
/lib
/unbound
72 UNBOUND_PIDFILE
=/var
/run
/unbound.pid
74 UNBOUND_SRV_CONF
=$UNBOUND_VARDIR/unbound_srv.conf
75 UNBOUND_EXT_CONF
=$UNBOUND_VARDIR/unbound_ext.conf
76 UNBOUND_DHCP_CONF
=$UNBOUND_VARDIR/unbound_dhcp.conf
77 UNBOUND_CONFFILE
=$UNBOUND_VARDIR/unbound.conf
79 UNBOUND_KEYFILE
=$UNBOUND_VARDIR/root.key
80 UNBOUND_HINTFILE
=$UNBOUND_VARDIR/root.hints
81 UNBOUND_TIMEFILE
=$UNBOUND_VARDIR/hotplug.
time
83 ##############################################################################
85 UNBOUND_ANCHOR
=/usr
/sbin
/unbound-anchor
86 UNBOUND_CONTROL
=/usr
/sbin
/unbound-control
87 UNBOUND_CONTROL_CFG
="$UNBOUND_CONTROL -c $UNBOUND_CONFFILE"
89 ##############################################################################
92 .
/lib
/functions
/network.sh
94 .
$UNBOUND_LIBDIR/dnsmasq.sh
95 .
$UNBOUND_LIBDIR/iptools.sh
96 .
$UNBOUND_LIBDIR/rootzone.sh
98 ##############################################################################
101 # TODO: remove this function and use builtins when this issues is resovled.
102 # Due to OpenWrt/LEDE divergence "cp -u" isn't yet universally available.
103 local filetime keeptime
106 if [ -f $UNBOUND_KEYFILE.keep
] ; then
107 # root.key.keep is reused if newest
108 filetime
=$
( date -r $UNBOUND_KEYFILE +%s
)
109 keeptime
=$
( date -r $UNBOUND_KEYFILE.keep
+%s
)
112 if [ $keeptime -gt $filetime ] ; then
113 cp $UNBOUND_KEYFILE.keep
$UNBOUND_KEYFILE
117 rm -f $UNBOUND_KEYFILE.keep
121 ##############################################################################
123 create_interface_dns
() {
125 local ipcommand logint ignore ifname ifdashname
126 local name names address addresses
127 local ulaprefix if_fqdn host_fqdn mode mode_ptr
129 # Create local-data: references for this hosts interfaces (router).
130 config_get logint
"$cfg" interface
131 config_get_bool ignore
"$cfg" ignore
0
132 network_get_device ifname
"$cfg"
134 ifdashname
="${ifname//./-}"
135 ipcommand
="ip -o address show $ifname"
136 addresses
=$
( $ipcommand |
awk '/inet/{sub(/\/.*/,"",$4); print $4}' )
137 ulaprefix
=$
( uci_get network.@globals
[0].ula_prefix
)
138 host_fqdn
="$UNBOUND_TXT_HOSTNAME.$UNBOUND_TXT_DOMAIN"
139 if_fqdn
="$ifdashname.$host_fqdn"
142 if [ -z "${ulaprefix%%:/*}" ] ; then
143 # Nonsense so this option isn't globbed below
144 ulaprefix
="fdno:such:addr::/48"
148 if [ "$ignore" -gt 0 ] ; then
149 mode
="$UNBOUND_D_WAN_FQDN"
151 mode
="$UNBOUND_D_LAN_FQDN"
157 mode_ptr
="$host_fqdn"
158 names
="$host_fqdn $UNBOUND_TXT_HOSTNAME"
162 if [ -z "$ifdashname" ] ; then
163 # race conditions at init can rarely cause a blank device return
164 # the record format is invalid and Unbound won't load the conf file
165 mode_ptr
="$host_fqdn"
166 names
="$host_fqdn $UNBOUND_TXT_HOSTNAME"
169 names
="$if_fqdn $host_fqdn $UNBOUND_TXT_HOSTNAME"
174 mode_ptr
="$UNBOUND_TXT_HOSTNAME"
175 names
="$UNBOUND_TXT_HOSTNAME"
180 if [ "$mode" -gt 1 ] ; then
182 for address
in $addresses ; do
185 echo " # note link address $address"
189 # GA and ULA IP6 for HOST IN AAA records (ip command is robust)
190 for name
in $names ; do
191 echo " local-data: \"$name. 120 IN AAAA $address\""
193 echo " local-data-ptr: \"$address 120 $mode_ptr\""
197 # Old fashioned HOST IN A records
198 for name
in $names ; do
199 echo " local-data: \"$name. 120 IN A $address\""
201 echo " local-data-ptr: \"$address 120 $mode_ptr\""
206 } >> $UNBOUND_CONFFILE
208 elif [ "$mode" -gt 0 ] ; then
210 for address
in $addresses ; do
213 echo " # note link address $address"
216 "${ulaprefix%%:/*}"*)
217 # Only this networks ULA and only hostname
218 echo " local-data: \"$UNBOUND_TXT_HOSTNAME. 120 IN AAAA $address\""
219 echo " local-data-ptr: \"$address 120 $UNBOUND_TXT_HOSTNAME\""
223 echo " local-data: \"$UNBOUND_TXT_HOSTNAME. 120 IN A $address\""
224 echo " local-data-ptr: \"$address 120 $UNBOUND_TXT_HOSTNAME\""
229 } >> $UNBOUND_CONFFILE
233 ##############################################################################
235 create_local_zone
() {
237 local partial domain found
240 if [ -n "$UNBOUND_LIST_DOMAINS" ] ; then
241 for domain
in $UNBOUND_LIST_DOMAINS ; do
248 [A-Za-z0-9
]*.
[A-Za-z0-9
]*)
263 if [ $found -eq 0 ] ; then
264 # New Zone! Bundle local-zones: by first two name tiers "abcd.tld."
265 partial
=$
( echo "$target" |
awk -F.
'{ j=NF ; i=j-1; print $i"."$j }' )
266 UNBOUND_LIST_DOMAINS
="$UNBOUND_LIST_DOMAINS $partial"
267 echo " local-zone: $partial. transparent" >> $UNBOUND_CONFFILE
271 ##############################################################################
273 create_host_record
() {
277 # basefiles dhcp "domain" clause which means host A, AAAA, and PRT record
278 config_get ip
"$cfg" ip
279 config_get name
"$cfg" name
282 if [ -n "$name" -a -n "$ip" ] ; then
283 create_local_zone
"$name"
288 echo " # note link address $ip for host $name"
292 echo " local-data: \"$name. 120 IN AAAA $ip\""
293 echo " local-data-ptr: \"$ip 120 $name\""
297 echo " local-data: \"$name. 120 IN A $ip\""
298 echo " local-data-ptr: \"$ip 120 $name\""
301 } >> $UNBOUND_CONFFILE
305 ##############################################################################
309 local domain relay pref
311 # Insert a static MX record
312 config_get domain
"$cfg" domain
313 config_get relay
"$cfg" relay
314 config_get pref
"$cfg" pref
10
317 if [ -n "$domain" -a -n "$relay" ] ; then
318 create_local_zone
"$domain"
319 echo " local-data: \"$domain. 120 IN MX $pref $relay.\"" \
324 ##############################################################################
326 create_srv_record
() {
328 local srv target port class weight
330 # Insert a static SRV record such as SIP server
331 config_get srv
"$cfg" srv
332 config_get target
"$cfg" target
333 config_get port
"$cfg" port
334 config_get class
"$cfg" class
10
335 config_get weight
"$cfg" weight
10
338 if [ -n "$srv" -a -n "$target" -a -n "$port" ] ; then
339 create_local_zone
"$srv"
340 echo " local-data: \"$srv. 120 IN SRV $class $weight $port $target.\"" \
345 ##############################################################################
347 create_cname_record
() {
351 # Insert static CNAME record
352 config_get cname
"$cfg" cname
353 config_get target
"$cfg" target
356 if [ -n "$cname" -a -n "$target" ] ; then
357 create_local_zone
"$cname"
358 echo " local-data: \"$cname. 120 IN CNAME $target.\"" >> $UNBOUND_CONFFILE
362 ##############################################################################
364 create_access_control
() {
366 local subnets subnets4 subnets6
367 local validip4 validip6
369 network_get_subnets subnets4
"$cfg"
370 network_get_subnets6 subnets6
"$cfg"
371 subnets
="$subnets4 $subnets6"
374 if [ -n "$subnets" ] ; then
375 for subnet
in $subnets ; do
376 validip4
=$
( valid_subnet4
$subnet )
377 validip6
=$
( valid_subnet6
$subnet )
380 if [ "$validip4" = "ok" -o "$validip6" = "ok" ] ; then
381 # For each "network" UCI add "access-control:" white list for queries
382 echo " access-control: $subnet allow" >> $UNBOUND_CONFFILE
388 ##############################################################################
390 create_domain_insecure
() {
391 echo " domain-insecure: \"$1\"" >> $UNBOUND_CONFFILE
394 ##############################################################################
397 local dhcp_origin
=$
( uci_get dhcp.@odhcpd
[0].leasefile
)
398 local dhcp_dir
=$
( dirname $dhcp_origin )
402 if [ "$UNBOUND_D_DHCP_LINK" = "odhcpd" -a ! -d "$dhcp_dir" ] ; then
403 # make sure odhcpd has a directory to write (not done itself, yet)
408 if [ -f $UNBOUND_KEYFILE ] ; then
409 filestuff
=$
( cat $UNBOUND_KEYFILE )
413 *"state=2 [ VALID ]"*)
414 # Lets not lose RFC 5011 tracking if we don't have to
415 cp -p $UNBOUND_KEYFILE $UNBOUND_KEYFILE.keep
421 # Blind copy /etc/ to /var/lib/
422 mkdir
-p $UNBOUND_VARDIR
423 rm -f $UNBOUND_VARDIR/dhcp_
*
424 touch $UNBOUND_CONFFILE
425 touch $UNBOUND_SRV_CONF
426 touch $UNBOUND_EXT_CONF
427 cp -p /etc
/unbound
/* $UNBOUND_VARDIR/
430 if [ ! -f $UNBOUND_HINTFILE ] ; then
431 if [ -f /usr
/share
/dns
/root.hints
] ; then
432 # Debian-like package dns-root-data
433 cp -p /usr
/share
/dns
/root.hints
$UNBOUND_HINTFILE
435 elif [ ! -f "$UNBOUND_TIMEFILE" ] ; then
436 logger
-t unbound
-s "iterator will use built-in root hints"
441 if [ ! -f $UNBOUND_KEYFILE ] ; then
442 if [ -f /usr
/share
/dns
/root.key
] ; then
443 # Debian-like package dns-root-data
444 cp -p /usr
/share
/dns
/root.key
$UNBOUND_KEYFILE
446 elif [ -x $UNBOUND_ANCHOR ] ; then
447 $UNBOUND_ANCHOR -a $UNBOUND_KEYFILE
449 elif [ ! -f "$UNBOUND_TIMEFILE" ] ; then
450 logger
-t unbound
-s "validator will use built-in trust anchor"
458 # Ensure access and prepare to jail
459 chown
-R unbound
:unbound
$UNBOUND_VARDIR
460 chmod 775 $UNBOUND_VARDIR
461 chmod 664 $UNBOUND_VARDIR/*
464 ##############################################################################
467 if [ "$UNBOUND_B_CONTROL" -gt 0 ] ; then
469 # Enable remote control tool, but only at local host for security
470 # You can hand write fancier encrypted access with /etc/..._ext.conf
471 echo "remote-control:"
472 echo " control-enable: yes"
473 echo " control-use-cert: no"
474 echo " control-interface: 127.0.0.1"
475 echo " control-interface: ::1"
477 } >> $UNBOUND_CONFFILE
482 # Amend your own extended clauses here like forward zones or disable
483 # above (local, no encryption) and amend your own remote encrypted control
485 echo "include: $UNBOUND_EXT_CONF" >> $UNBOUND_CONFFILE
487 } >> $UNBOUND_CONFFILE
490 ##############################################################################
494 local rt_mem rt_conn modulestring
498 # Make fresh conf file
499 echo "# $UNBOUND_CONFFILE generated by UCI $( date )"
501 } > $UNBOUND_CONFFILE
507 echo " username: unbound"
508 echo " num-threads: 1"
509 echo " msg-cache-slabs: 1"
510 echo " rrset-cache-slabs: 1"
511 echo " infra-cache-slabs: 1"
512 echo " key-cache-slabs: 1"
514 } >> $UNBOUND_CONFFILE
520 echo " statistics-interval: 0"
521 echo " statistics-cumulative: no"
522 echo " extended-statistics: no"
524 } >> $UNBOUND_CONFFILE
528 # Interfaces (access contol "option local_service")
529 echo " interface: 0.0.0.0"
530 echo " interface: ::0"
531 echo " outgoing-interface: 0.0.0.0"
532 echo " outgoing-interface: ::0"
534 } >> $UNBOUND_CONFFILE
537 case "$UNBOUND_D_PROTOCOL" in
542 } >> $UNBOUND_CONFFILE
549 } >> $UNBOUND_CONFFILE
556 echo " prefer-ip6: yes"
557 } >> $UNBOUND_CONFFILE
564 } >> $UNBOUND_CONFFILE
570 # protocol level tuning
571 echo " edns-buffer-size: $UNBOUND_N_EDNS_SIZE"
572 echo " msg-buffer-size: 8192"
573 echo " port: $UNBOUND_N_RX_PORT"
574 echo " outgoing-port-permit: 10240-65535"
576 } >> $UNBOUND_CONFFILE
580 # Other harding and options for an embedded router
581 echo " harden-short-bufsize: yes"
582 echo " harden-large-queries: yes"
583 echo " harden-glue: yes"
584 echo " harden-below-nxdomain: no"
585 echo " harden-referral-path: no"
586 echo " use-caps-for-id: no"
588 } >> $UNBOUND_CONFFILE
593 echo " use-syslog: yes"
594 echo " chroot: \"$UNBOUND_VARDIR\""
595 echo " directory: \"$UNBOUND_VARDIR\""
596 echo " pidfile: \"$UNBOUND_PIDFILE\""
597 } >> $UNBOUND_CONFFILE
600 if [ -f "$UNBOUND_HINTFILE" ] ; then
601 # Optional hints if found
602 echo " root-hints: \"$UNBOUND_HINTFILE\"" >> $UNBOUND_CONFFILE
606 if [ "$UNBOUND_B_DNSSEC" -gt 0 -a -f "$UNBOUND_KEYFILE" ] ; then
608 echo " auto-trust-anchor-file: \"$UNBOUND_KEYFILE\""
610 } >> $UNBOUND_CONFFILE
613 echo >> $UNBOUND_CONFFILE
617 case "$UNBOUND_D_RESOURCE" in
618 # Tiny - Unbound's recommended cheap hardware config
619 tiny
) rt_mem
=1 ; rt_conn
=1 ;;
620 # Small - Half RRCACHE and open ports
621 small
) rt_mem
=8 ; rt_conn
=5 ;;
622 # Medium - Nearly default but with some added balancintg
623 medium
) rt_mem
=16 ; rt_conn
=10 ;;
624 # Large - Double medium
625 large
) rt_mem
=32 ; rt_conn
=10 ;;
626 # Whatever unbound does
627 *) rt_mem
=0 ; rt_conn
=0 ;;
631 if [ "$rt_mem" -gt 0 ] ; then
633 # Set memory sizing parameters
634 echo " outgoing-range: $(($rt_conn*64))"
635 echo " num-queries-per-thread: $(($rt_conn*32))"
636 echo " outgoing-num-tcp: $(($rt_conn))"
637 echo " incoming-num-tcp: $(($rt_conn))"
638 echo " rrset-cache-size: $(($rt_mem*256))k"
639 echo " msg-cache-size: $(($rt_mem*128))k"
640 echo " key-cache-size: $(($rt_mem*128))k"
641 echo " neg-cache-size: $(($rt_mem*64))k"
642 echo " infra-cache-numhosts: $(($rt_mem*256))"
644 } >> $UNBOUND_CONFFILE
646 elif [ ! -f "$UNBOUND_TIMEFILE" ] ; then
647 logger
-t unbound
-s "default memory resource consumption"
650 # Assembly of module-config: options is tricky; order matters
651 modulestring
="iterator"
654 if [ "$UNBOUND_B_DNSSEC" -gt 0 ] ; then
655 if [ ! -f "$UNBOUND_TIMEFILE" -a "$UNBOUND_B_NTP_BOOT" -gt 0 ] ; then
656 # DNSSEC chicken and egg with getting NTP time
657 echo " val-override-date: -1" >> $UNBOUND_CONFFILE
662 echo " harden-dnssec-stripped: yes"
663 echo " val-clean-additional: yes"
664 echo " ignore-cd-flag: yes"
665 } >> $UNBOUND_CONFFILE
668 modulestring
="validator $modulestring"
672 if [ "$UNBOUND_B_DNS64" -gt 0 ] ; then
673 echo " dns64-prefix: $UNBOUND_IP_DNS64" >> $UNBOUND_CONFFILE
675 modulestring
="dns64 $modulestring"
680 # Print final module string
681 echo " module-config: \"$modulestring\""
683 } >> $UNBOUND_CONFFILE
686 if [ "$UNBOUND_B_QRY_MINST" -gt 0 -a "$UNBOUND_B_QUERY_MIN" -gt 0 ] ; then
688 # Some query privacy but "strict" will break some name servers
689 echo " qname-minimisation: yes"
690 echo " qname-minimisation-strict: yes"
691 } >> $UNBOUND_CONFFILE
693 elif [ "$UNBOUND_B_QUERY_MIN" -gt 0 ] ; then
694 # Minor improvement on query privacy
695 echo " qname-minimisation: yes" >> $UNBOUND_CONFFILE
698 echo " qname-minimisation: no" >> $UNBOUND_CONFFILE
702 case "$UNBOUND_D_RECURSION" in
706 echo " prefetch-key: no"
707 echo " target-fetch-policy: \"0 0 0 0 0\""
709 } >> $UNBOUND_CONFFILE
714 echo " prefetch: yes"
715 echo " prefetch-key: yes"
716 echo " target-fetch-policy: \"3 2 1 0 0\""
718 } >> $UNBOUND_CONFFILE
722 if [ ! -f "$UNBOUND_TIMEFILE" ] ; then
723 logger
-t unbound
-s "default recursion configuration"
730 # Reload records more than 10 hours old
731 # DNSSEC 5 minute bogus cool down before retry
732 # Adaptive infrastructure info kept for 15 minutes
733 echo " cache-min-ttl: $UNBOUND_TTL_MIN"
734 echo " cache-max-ttl: 36000"
735 echo " val-bogus-ttl: 300"
736 echo " infra-host-ttl: 900"
738 } >> $UNBOUND_CONFFILE
741 if [ "$UNBOUND_B_HIDE_BIND" -gt 0 ] ; then
743 # Block server id and version DNS TXT records
744 echo " hide-identity: yes"
745 echo " hide-version: yes"
747 } >> $UNBOUND_CONFFILE
751 if [ "$UNBOUND_B_PRIV_BLCK" -gt 0 ] ; then
753 # Remove _upstream_ or global reponses with private addresses.
754 # Unbounds own "local zone" and "forward zone" may still use these.
755 # RFC1918, RFC3927, RFC4291, RFC6598, RFC6890
756 echo " private-address: 10.0.0.0/8"
757 echo " private-address: 100.64.0.0/10"
758 echo " private-address: 169.254.0.0/16"
759 echo " private-address: 172.16.0.0/12"
760 echo " private-address: 192.168.0.0/16"
761 echo " private-address: fc00::/8"
762 echo " private-address: fd00::/8"
763 echo " private-address: fe80::/10"
764 } >> $UNBOUND_CONFFILE
768 if [ "$UNBOUND_B_LOCL_BLCK" -gt 0 ] ; then
770 # Remove DNS reponses from upstream with loopback IP
771 # Black hole DNS method for ad blocking, so consider...
772 echo " private-address: 127.0.0.0/8"
773 echo " private-address: ::1/128"
775 } >> $UNBOUND_CONFFILE
778 echo >> $UNBOUND_CONFFILE
782 # Except and accept domains as insecure (DNSSEC); work around broken domains
783 config_list_foreach
"$cfg" "domain_insecure" create_domain_insecure
784 echo >> $UNBOUND_CONFFILE
787 ##############################################################################
790 # TODO: Unbound 1.6.0 added "tags" and "views", so we can add tags to
791 # each access-control IP block, and then divert access.
792 # -- "guest" WIFI will not be allowed to see local zone data
793 # -- "child" LAN can black whole a list of domains to http~deadpixel
796 if [ "$UNBOUND_B_LOCL_SERV" -gt 0 ] ; then
797 # Only respond to queries from which this device has an interface.
798 # Prevent DNS amplification attacks by not responding to the universe.
800 config_foreach create_access_control interface
804 echo " access-control: 127.0.0.0/8 allow"
805 echo " access-control: ::1/128 allow"
806 echo " access-control: fe80::/10 allow"
808 } >> $UNBOUND_CONFFILE
812 echo " access-control: 0.0.0.0/0 allow"
813 echo " access-control: ::0/0 allow"
815 } >> $UNBOUND_CONFFILE
820 # Amend your own "server:" stuff here
821 echo " include: $UNBOUND_SRV_CONF"
823 } >> $UNBOUND_CONFFILE
826 ##############################################################################
829 # TODO: Unbound 1.6.0 added "tags" and "views"; lets work with adblock team
830 local adb_enabled adb_file
832 if [ ! -x /usr
/bin
/adblock.sh
-o ! -x /etc
/init.d
/adblock
] ; then
835 /etc
/init.d
/adblock enabled
&& adb_enabled
=1 || adb_enabled
=0
839 if [ "$adb_enabled" -gt 0 ] ; then
841 # Pull in your selected openwrt/pacakges/net/adblock generated lists
842 for adb_file
in $UNBOUND_VARDIR/adb_list.
* ; do
843 echo " include: $adb_file"
846 } >> $UNBOUND_CONFFILE
850 ##############################################################################
853 if [ -n "$UNBOUND_TXT_DOMAIN" ] ; then
855 # TODO: Unbound 1.6.0 added "tags" and "views" and we could make
856 # domains by interface to prevent DNS from "guest" to "home"
857 echo " local-zone: $UNBOUND_TXT_DOMAIN. $UNBOUND_D_DOMAIN_TYPE"
858 echo " domain-insecure: $UNBOUND_TXT_DOMAIN"
859 echo " private-domain: $UNBOUND_TXT_DOMAIN"
861 echo " local-zone: $UNBOUND_TXT_HOSTNAME. $UNBOUND_D_DOMAIN_TYPE"
862 echo " domain-insecure: $UNBOUND_TXT_HOSTNAME"
863 echo " private-domain: $UNBOUND_TXT_HOSTNAME"
865 } >> $UNBOUND_CONFFILE
868 case "$UNBOUND_D_DOMAIN_TYPE" in
869 deny|inform_deny|refuse|static
)
871 # avoid upstream involvement in RFC6762 like responses (link only)
872 echo " local-zone: local. $UNBOUND_D_DOMAIN_TYPE"
873 echo " domain-insecure: local"
874 echo " private-domain: local"
876 } >> $UNBOUND_CONFFILE
881 if [ "$UNBOUND_D_LAN_FQDN" -gt 0 -o "$UNBOUND_D_WAN_FQDN" -gt 0 ] ; then
883 config_foreach create_interface_dns dhcp
887 if [ -f "$UNBOUND_DHCP_CONF" ] ; then
889 # Seed DHCP records because dhcp scripts trigger externally
890 # Incremental Unbound restarts may drop unbound-control add records
891 echo " include: $UNBOUND_DHCP_CONF"
893 } >> $UNBOUND_CONFFILE
898 ##############################################################################
901 if [ "$UNBOUND_D_EXTRA_DNS" -gt 0 ] ; then
902 # Parasite from the uci.dhcp.domain clauses
904 config_foreach create_host_record domain
908 if [ "$UNBOUND_D_EXTRA_DNS" -gt 1 ] ; then
909 config_foreach create_srv_record srvhost
910 config_foreach create_mx_record mxhost
914 if [ "$UNBOUND_D_EXTRA_DNS" -gt 2 ] ; then
915 config_foreach create_cname_record cname
919 echo >> $UNBOUND_CONFFILE
922 ##############################################################################
926 local dnsmasqpath hostnm
928 hostnm
=$
( uci_get system.@system
[0].hostname |
awk '{print tolower($0)}' )
929 UNBOUND_TXT_HOSTNAME
=${hostnm:-thisrouter}
931 config_get_bool UNBOUND_B_SLAAC6_MAC
"$cfg" dhcp4_slaac6
0
932 config_get_bool UNBOUND_B_DNS64
"$cfg" dns64
0
933 config_get_bool UNBOUND_B_HIDE_BIND
"$cfg" hide_binddata
1
934 config_get_bool UNBOUND_B_LOCL_SERV
"$cfg" localservice
1
935 config_get_bool UNBOUND_B_MAN_CONF
"$cfg" manual_conf
0
936 config_get_bool UNBOUND_B_QUERY_MIN
"$cfg" query_minimize
0
937 config_get_bool UNBOUND_B_QRY_MINST
"$cfg" query_min_strict
0
938 config_get_bool UNBOUND_B_PRIV_BLCK
"$cfg" rebind_protection
1
939 config_get_bool UNBOUND_B_LOCL_BLCK
"$cfg" rebind_localhost
0
940 config_get_bool UNBOUND_B_CONTROL
"$cfg" unbound_control
0
941 config_get_bool UNBOUND_B_DNSSEC
"$cfg" validator
0
942 config_get_bool UNBOUND_B_NTP_BOOT
"$cfg" validator_ntp
1
944 config_get UNBOUND_IP_DNS64
"$cfg" dns64_prefix
"64:ff9b::/96"
946 config_get UNBOUND_N_EDNS_SIZE
"$cfg" edns_size
1280
947 config_get UNBOUND_N_RX_PORT
"$cfg" listen_port
53
948 config_get UNBOUND_N_ROOT_AGE
"$cfg" root_age
9
950 config_get UNBOUND_D_DOMAIN_TYPE
"$cfg" domain_type static
951 config_get UNBOUND_D_DHCP_LINK
"$cfg" dhcp_link none
952 config_get UNBOUND_D_EXTRA_DNS
"$cfg" add_extra_dns
0
953 config_get UNBOUND_D_LAN_FQDN
"$cfg" add_local_fqdn
0
954 config_get UNBOUND_D_PROTOCOL
"$cfg" protocol mixed
955 config_get UNBOUND_D_RECURSION
"$cfg" recursion passive
956 config_get UNBOUND_D_RESOURCE
"$cfg" resource small
957 config_get UNBOUND_D_WAN_FQDN
"$cfg" add_wan_fqdn
0
959 config_get UNBOUND_TTL_MIN
"$cfg" ttl_min
120
960 config_get UNBOUND_TXT_DOMAIN
"$cfg" domain lan
962 UNBOUND_LIST_DOMAINS
="nowhere $UNBOUND_TXT_DOMAIN"
964 if [ "$UNBOUND_D_DHCP_LINK" = "none" ] ; then
965 config_get_bool UNBOUND_B_DNSMASQ
"$cfg" dnsmasq_link_dns
0
968 if [ "$UNBOUND_B_DNSMASQ" -gt 0 ] ; then
969 UNBOUND_D_DHCP_LINK
=dnsmasq
972 if [ ! -f "$UNBOUND_TIMEFILE" ] ; then
973 logger
-t unbound
-s "Please use 'dhcp_link' selector instead"
979 if [ "$UNBOUND_D_DHCP_LINK" = "dnsmasq" ] ; then
980 if [ ! -x /usr
/sbin
/dnsmasq
-o ! -x /etc
/init.d
/dnsmasq
] ; then
981 UNBOUND_D_DHCP_LINK
=none
983 /etc
/init.d
/dnsmasq enabled || UNBOUND_D_DHCP_LINK
=none
987 if [ "$UNBOUND_D_DHCP_LINK" = "none" -a ! -f "$UNBOUND_TIMEFILE" ] ; then
988 logger
-t unbound
-s "cannot forward to dnsmasq"
993 if [ "$UNBOUND_D_DHCP_LINK" = "odhcpd" ] ; then
994 if [ ! -x /usr
/sbin
/odhcpd
-o ! -x /etc
/init.d
/odhcpd
] ; then
995 UNBOUND_D_DHCP_LINK
=none
997 /etc
/init.d
/odhcpd enabled || UNBOUND_D_DHCP_LINK
=none
1001 if [ "$UNBOUND_D_DHCP_LINK" = "none" -a ! -f "$UNBOUND_TIMEFILE" ] ; then
1002 logger
-t unbound
-s "cannot receive records from odhcpd"
1007 if [ "$UNBOUND_N_EDNS_SIZE" -lt 512 \
1008 -o 4096 -lt "$UNBOUND_N_EDNS_SIZE" ] ; then
1009 logger
-t unbound
-s "edns_size exceeds range, using default"
1010 UNBOUND_N_EDNS_SIZE
=1280
1014 if [ "$UNBOUND_N_RX_PORT" -ne 53 ] \
1015 && [ "$UNBOUND_N_RX_PORT" -lt 1024 -o 10240 -lt "$UNBOUND_N_RX_PORT" ] ; then
1016 logger
-t unbound
-s "privileged port or in 5 digits, using default"
1017 UNBOUND_N_RX_PORT
=53
1021 if [ "$UNBOUND_TTL_MIN" -gt 1800 ] ; then
1022 logger
-t unbound
-s "ttl_min could have had awful side effects, using 300"
1027 ##############################################################################
1030 if [ "$UNBOUND_N_RX_PORT" != "53" ] ; then
1034 if [ -x /etc
/init.d
/dnsmasq
] && /etc
/init.d
/dnsmasq enabled \
1035 && nslookup localhost
127.0.0.1#53 >/dev/null 2>&1 ; then
1036 # unbound is configured for port 53, but dnsmasq is enabled and a resolver
1037 # listens on localhost:53, lets assume dnsmasq manages the resolver file.
1039 # really check if dnsmasq runs a local (main) resolver in stead of using
1040 # nslookup that times out when no resolver listens on localhost:53.
1044 # unbound is designated to listen on 127.0.0.1#53,
1045 # set resolver file to local.
1046 rm -f /tmp
/resolv.conf
1048 echo "# /tmp/resolv.conf generated by Unbound UCI $( date )"
1049 echo "nameserver 127.0.0.1"
1050 echo "nameserver ::1"
1051 echo "search $UNBOUND_TXT_DOMAIN"
1052 } > /tmp
/resolv.conf
1055 ##############################################################################
1057 _resolv_teardown
() {
1058 case $
( cat /tmp
/resolv.conf
) in
1059 *"generated by Unbound UCI"*)
1060 # our resolver file, reset to auto resolver file.
1061 rm -f /tmp
/resolv.conf
1062 ln -s /tmp
/resolv.conf.auto
/tmp
/resolv.conf
1067 ##############################################################################
1071 config_foreach unbound_uci unbound
1077 if [ "$UNBOUND_B_MAN_CONF" -eq 0 ] ; then
1082 if [ "$UNBOUND_D_DHCP_LINK" = "dnsmasq" ] ; then
1096 ##############################################################################
1105 ##############################################################################