1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007-2012 OpenWrt.org
14 BASECONFIGFILE
="/var/etc/dnsmasq.conf"
15 BASEHOSTFILE
="/tmp/hosts/dhcp"
16 TRUSTANCHORSFILE
="/usr/share/dnsmasq/trust-anchors.conf"
17 TIMEVALIDFILE
="/var/state/dnsmasqsec"
18 BASEDHCPSTAMPFILE
="/var/run/dnsmasq"
19 DHCPBOGUSHOSTNAMEFILE
="/usr/share/dnsmasq/dhcpbogushostname.conf"
20 RFC6761FILE
="/usr/share/dnsmasq/rfc6761.conf"
21 DHCPSCRIPT
="/usr/lib/dnsmasq/dhcp-script.sh"
22 DHCPSCRIPT_DEPENDS
="/usr/share/libubox/jshn.sh /usr/bin/jshn /bin/ubus"
26 dnsmasq_ignore_opt
() {
29 if [ -z "$dnsmasq_features" ]; then
30 dnsmasq_features
="$(dnsmasq --version | grep -m1 'Compile time options:' | cut -d: -f2) "
31 [ "${dnsmasq_features#* DHCP }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp
=1
32 [ "${dnsmasq_features#* DHCPv6 }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp6
=1
33 [ "${dnsmasq_features#* DNSSEC }" = "$dnsmasq_features" ] || dnsmasq_has_dnssec
=1
34 [ "${dnsmasq_features#* TFTP }" = "$dnsmasq_features" ] || dnsmasq_has_tftp
=1
35 [ "${dnsmasq_features#* ipset }" = "$dnsmasq_features" ] || dnsmasq_has_ipset
=1
41 [ -z "$dnsmasq_has_dhcp6" ] ;;
45 [ -z "$dnsmasq_has_dhcp" ] ;;
48 if [ -z "$dnsmasq_has_dnssec" ]; then
49 echo "dnsmasq: \"$opt\" requested, but dnssec support is not available" >&2
55 [ -z "$dnsmasq_has_tftp" ] ;;
57 [ -z "$dnsmasq_has_ipset" ] ;;
65 local opt
="${value%%=*}"
67 if ! dnsmasq_ignore_opt
"$opt"; then
68 echo "$value" >>$CONFIGFILE_TMP
74 local hex
="${2#0x}" # strip optional "0x" prefix
76 if [ -n "${hex//[0-9a-fA-F]/}" ]; then
77 # is invalid hex literal
81 # convert into host id
84 $(((0x$hex >> 16) % 65536)) \
95 while [ -n "$ip" ]; do
98 res
="$(($res + $part))"
99 [ "${ip%.*}" != "$ip" ] && ip
="${ip#*.}" || ip
=
106 local stamp
="${BASEDHCPSTAMPFILE_CFG}.${ifname}.dhcp"
109 [ -s "$stamp" ] && return $
(cat "$stamp")
111 # If interface is down, skip it.
112 # The init script will be called again once the link is up
113 case "$(devstatus "$ifname" | jsonfilter -e @.up)" in
117 udhcpc
-n -q -s /bin
/true
-t 1 -i "$ifname" >&- && rv
=1 || rv
=0
124 pidof dnsmasq
>/dev
/null || \
125 logger
-t dnsmasq
"$@"
131 for file in /etc
/hotplug.d
/dhcp
/* /etc
/hotplug.d
/tftp
/* /etc
/hotplug.d
/neigh
/*; do
132 [ -f "$file" ] && return 0
144 [ -z "$default" ] && default
="0"
145 config_get_bool _loctmp
"$section" "$option" "$default"
146 [ $_loctmp -gt 0 ] && xappend
"$value"
155 config_get _loctmp
"$section" "$option" "$default"
156 [ -z "$_loctmp" ] && return 0
157 xappend
"$switch=$_loctmp"
161 xappend
"--server=$1"
164 append_rev_server
() {
165 xappend
"--rev-server=$1"
169 xappend
"--address=$1"
176 append_connmark_allowlist
() {
177 xappend
"--connmark-allowlist=$1"
181 network_get_device ifname
"$1" || ifname
="$1"
182 xappend
"--interface=$ifname"
185 append_listenaddress
() {
186 xappend
"--listen-address=$1"
189 append_notinterface
() {
190 network_get_device ifname
"$1" || ifname
="$1"
191 xappend
"--except-interface=$ifname"
197 for dirname in $EXTRA_MOUNT ; do
199 "${dirname}/"* |
"${dirname}" )
209 ismounted
"$1" || append EXTRA_MOUNT
"$1"
210 xappend
"--addn-hosts=$1"
213 append_bogusnxdomain
() {
214 xappend
"--bogus-nxdomain=$1"
217 append_pxe_service
() {
218 xappend
"--pxe-service=$1"
221 append_interface_name
() {
222 xappend
"--interface-name=$1,$2"
226 local cfg
="$1" func
="$2" match_cfg
="$3" found_cfg
228 # use entry when no instance entry set, or if it matches
229 config_get found_cfg
"$cfg" "instance"
230 if [ -z "$found_cfg" ] ||
[ "$found_cfg" = "$match_cfg" ]; then
235 dhcp_subscrid_add
() {
238 config_get networkid
"$cfg" networkid
239 [ -n "$networkid" ] ||
return 0
241 config_get subscriberid
"$cfg" subscriberid
242 [ -n "$subscriberid" ] ||
return 0
244 xappend
"--dhcp-subscrid=set:$networkid,$subscriberid"
246 config_get_bool force
"$cfg" force
0
248 dhcp_option_add
"$cfg" "$networkid" "$force"
251 dhcp_remoteid_add
() {
254 config_get networkid
"$cfg" networkid
255 [ -n "$networkid" ] ||
return 0
257 config_get remoteid
"$cfg" remoteid
258 [ -n "$remoteid" ] ||
return 0
260 xappend
"--dhcp-remoteid=set:$networkid,$remoteid"
262 config_get_bool force
"$cfg" force
0
264 dhcp_option_add
"$cfg" "$networkid" "$force"
267 dhcp_circuitid_add
() {
268 # TODO: DHCPV6 does not have circuitid; catch "option6:"
271 config_get networkid
"$cfg" networkid
272 [ -n "$networkid" ] ||
return 0
274 config_get circuitid
"$cfg" circuitid
275 [ -n "$circuitid" ] ||
return 0
277 xappend
"--dhcp-circuitid=set:$networkid,$circuitid"
279 config_get_bool force
"$cfg" force
0
281 dhcp_option_add
"$cfg" "$networkid" "$force"
284 dhcp_userclass_add
() {
287 config_get networkid
"$cfg" networkid
288 [ -n "$networkid" ] ||
return 0
290 config_get userclass
"$cfg" userclass
291 [ -n "$userclass" ] ||
return 0
293 xappend
"--dhcp-userclass=set:$networkid,$userclass"
295 config_get_bool force
"$cfg" force
0
297 dhcp_option_add
"$cfg" "$networkid" "$force"
300 dhcp_vendorclass_add
() {
301 # TODO: DHCPV6 vendor class has stricter definitions; catch? fixup?
304 config_get networkid
"$cfg" networkid
305 [ -n "$networkid" ] ||
return 0
307 config_get vendorclass
"$cfg" vendorclass
308 [ -n "$vendorclass" ] ||
return 0
310 xappend
"--dhcp-vendorclass=set:$networkid,$vendorclass"
312 config_get_bool force
"$cfg" force
0
314 dhcp_option_add
"$cfg" "$networkid" "$force"
320 config_get networkid
"$cfg" networkid
321 [ -n "$networkid" ] ||
return 0
323 config_get match
"$cfg" match
324 [ -n "$match" ] ||
return 0
326 xappend
"--dhcp-match=set:$networkid,$match"
328 config_get_bool force
"$cfg" force
0
330 dhcp_option_add
"$cfg" "$networkid" "$force"
335 local hosttag nametime addrs duids macs tags
337 config_get_bool force
"$cfg" force
0
339 config_get networkid
"$cfg" networkid
340 [ -n "$networkid" ] && dhcp_option_add
"$cfg" "$networkid" "$force"
342 config_get_bool
enable "$cfg" enable 1
343 [ "$enable" = "0" ] && return 0
345 config_get name
"$cfg" name
346 config_get ip
"$cfg" ip
347 config_get hostid
"$cfg" hostid
349 [ -z "$ip" ] && [ -z "$name" ] && [ -z "$hostid" ] && return 0
351 config_get_bool dns
"$cfg" dns
0
352 [ "$dns" = "1" ] && [ -n "$ip" ] && [ -n "$name" ] && {
353 echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE_TMP
356 config_get mac
"$cfg" mac
357 config_get duid
"$cfg" duid
358 config_get tag
"$cfg" tag
360 if [ -n "$mac" ]; then
361 # --dhcp-host=00:20:e0:3b:13:af,192.168.0.199,lap
362 # many MAC are possible to track a laptop ON/OFF dock
363 for m
in $mac; do append macs
"$m" ","; done
366 if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ -n "$duid" ]; then
367 # --dhcp-host=id:00:03:00:01:12:00:00:01:02:03,[::beef],lap
368 # one (virtual) machine gets one DUID per RFC3315
369 duids
="id:${duid// */}"
372 if [ -z "$macs" ] && [ -z "$duids" ]; then
373 # --dhcp-host=lap,192.168.0.199,[::beef]
374 [ -n "$name" ] ||
return 0
379 if [ -n "$hostid" ]; then
380 hex_to_hostid hostid
"$hostid"
383 if [ -n "$tag" ]; then
384 for t
in $tag; do append tags
"$t" ",set:"; done
387 config_get_bool broadcast
"$cfg" broadcast
0
388 config_get leasetime
"$cfg" leasetime
390 [ "$broadcast" = "0" ] && broadcast
= || broadcast
=",set:needs-broadcast"
392 hosttag
="${networkid:+,set:${networkid}}${tags:+,set:${tags}}$broadcast"
393 nametime
="${name:+,$name}${leasetime:+,$leasetime}"
395 if [ $DNSMASQ_DHCP_VER -eq 6 ]; then
396 addrs
="${ip:+,$ip}${hostid:+,[::$hostid]}"
397 xappend
"--dhcp-host=$macs${duids:+,$duids}$hosttag$addrs$nametime"
399 xappend
"--dhcp-host=$macs$hosttag${ip:+,$ip}$nametime"
403 dhcp_this_host_add
() {
407 local routerstub routername ifdashname
408 local lanaddr lanaddr6 lanaddrs6 ulaprefix
410 if [ "$mode" -gt 0 ] ; then
411 ifdashname
="${ifname//./-}"
412 routerstub
="$( md5sum /etc/os-release )"
413 routerstub
="router-${routerstub// */}"
414 routername
="$( uci_get system @system[0] hostname $routerstub )"
416 if [ "$mode" -gt 1 ] ; then
417 if [ "$mode" -gt 2 ] ; then
418 if [ "$mode" -gt 3 ] ; then
419 append_interface_name
"$ifdashname.$routername.$DOMAIN" "$ifname"
422 append_interface_name
"$routername.$DOMAIN" "$ifname"
425 # All IP addresses discovered by dnsmasq will be labeled (except fe80::)
426 append_interface_name
"$routername" "$ifname"
429 # This uses a static host file entry for only limited addresses.
430 # Use dnsmasq option "--expandhosts" to enable FQDN on host files.
431 ulaprefix
="$(uci_get network @globals[0] ula_prefix)"
432 network_get_ipaddr lanaddr
"$net"
433 network_get_ipaddrs6 lanaddrs6
"$net"
435 if [ -n "$lanaddr" ] ; then
436 dhcp_domain_add
"" "$routername" "$lanaddr"
439 if [ -n "$ulaprefix" ] && [ -n "$lanaddrs6" ] ; then
440 for lanaddr6
in $lanaddrs6 ; do
442 "${ulaprefix%%:/*}"*)
443 dhcp_domain_add
"" "$routername" "$lanaddr6"
453 # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
458 [ -n "$tag" ] ||
return 0
460 config_get_bool force
"$cfg" force
0
461 [ "$force" = "0" ] && force
=
463 config_get option
"$cfg" dhcp_option
465 xappend
"--dhcp-option${force:+-force}=tag:$tag,$o"
472 config_get networkid
"$cfg" networkid
473 [ -n "$networkid" ] ||
return 0
475 config_get mac
"$cfg" mac
476 [ -n "$mac" ] ||
return 0
478 xappend
"--dhcp-mac=$networkid,$mac"
480 dhcp_option_add
"$cfg" "$networkid"
484 # TODO: BOOTURL is different between DHCPv4 and DHCPv6
487 config_get networkid
"$cfg" networkid
489 config_get filename
"$cfg" filename
490 [ -n "$filename" ] ||
return 0
492 config_get servername
"$cfg" servername
493 config_get serveraddress
"$cfg" serveraddress
495 [ -n "$serveraddress" ] && [ ! -n "$servername" ] && return 0
497 xappend
"--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}"
499 config_get_bool force
"$cfg" force
0
501 dhcp_option_add
"$cfg" "$networkid" "$force"
507 local dhcp6range
="::"
511 config_get net
"$cfg" interface
512 [ -n "$net" ] ||
return 0
514 config_get networkid
"$cfg" networkid
515 [ -n "$networkid" ] || networkid
="$net"
517 network_get_device ifname
"$net" ||
return 0
519 [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver
"$net" && {
520 DNS_SERVERS
="$DNS_SERVERS $dnsserver"
523 append_bool
"$cfg" ignore
"--no-dhcp-interface=$ifname" && {
524 # Many ISP do not have useful names for DHCP customers (your WAN).
525 dhcp_this_host_add
"$net" "$ifname" "$ADD_WAN_FQDN"
529 network_get_subnet subnet
"$net" ||
return 0
530 network_get_protocol proto
"$net" ||
return 0
532 # Do not support non-static interfaces for now
533 [ static
= "$proto" ] ||
return 0
535 # Override interface netmask with dhcp config if applicable
536 config_get netmask
"$cfg" netmask
"${subnet##*/}"
538 #check for an already active dhcp server on the interface, unless 'force' is set
539 config_get_bool force
"$cfg" force
0
540 [ $force -gt 0 ] || dhcp_check
"$ifname" ||
{
542 "found already running DHCP-server on interface '$ifname'" \
543 "refusing to start, use 'option force 1' to override"
547 config_get start
"$cfg" start
100
548 config_get limit
"$cfg" limit
150
549 config_get leasetime
"$cfg" leasetime
12h
550 config_get options
"$cfg" options
551 config_get_bool dynamicdhcp
"$cfg" dynamicdhcp
1
553 config_get dhcpv4
"$cfg" dhcpv4
554 config_get dhcpv6
"$cfg" dhcpv6
556 config_get ra
"$cfg" ra
557 config_get ra_management
"$cfg" ra_management
558 config_get ra_preference
"$cfg" ra_preference
559 config_get dns
"$cfg" dns
561 config_list_foreach
"$cfg" "interface_name" append_interface_name
"$ifname"
563 # Put the router host name on this DHCP served interface address(es)
564 dhcp_this_host_add
"$net" "$ifname" "$ADD_LOCAL_FQDN"
566 start
="$( dhcp_calc "$start" )"
569 tags
="${tags}tag:$1,"
571 config_list_foreach
"$cfg" tag add_tag
573 nettag
="${networkid:+set:${networkid},}"
575 if [ "$limit" -gt 0 ] ; then
579 eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
581 if [ "$dynamicdhcp" = "0" ] ; then
583 dhcp6range
="::,static"
585 dhcp6range
="::1000,::ffff"
589 if [ "$dhcpv4" != "disabled" ] ; then
590 xappend
"--dhcp-range=$tags$nettag$START,$END,$NETMASK,$leasetime${options:+ $options}"
594 if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ "$ra" = "server" ] ; then
595 # Note: dnsmasq cannot just be a DHCPv6 server (all-in-1)
596 # and let some other machine(s) send RA pointing to it.
598 case $ra_preference in
600 xappend
"--ra-param=$ifname,high,0,7200"
603 xappend
"--ra-param=$ifname,low,0,7200"
606 # Send UNSOLICITED RA at default interval and live for 2 hours.
607 # TODO: convert flexible lease time into route life time (only seconds).
608 xappend
"--ra-param=$ifname,0,7200"
612 if [ "$dhcpv6" = "disabled" ] ; then
617 case $ra_management in
619 # SLACC with DCHP for extended options
620 xappend
"--dhcp-range=$nettag::,constructor:$ifname,ra-stateless,ra-names"
623 # DHCP address and RA only for management redirection
624 xappend
"--dhcp-range=$nettag$dhcp6range,constructor:$ifname,$leasetime"
627 # SLAAC only but dnsmasq attempts to link HOSTNAME, DHCPv4 MAC, and SLAAC
628 xappend
"--dhcp-range=$nettag::,constructor:$ifname,ra-only,ra-names"
631 # SLAAC and full DHCP
632 xappend
"--dhcp-range=$nettag$dhcp6range,constructor:$ifname,slaac,ra-names,$leasetime"
636 if [ -n "$dns" ]; then
638 for d
in $dns; do append dnss
"[$d]" ","; done
643 dhcp_option_append
"option6:dns-server,$dnss" "$networkid"
646 dhcp_option_add
"$cfg" "$networkid" 0
647 dhcp_option_add
"$cfg" "$networkid" 2
650 dhcp_option_append
() {
655 xappend
"--dhcp-option${force:+-force}=${networkid:+$networkid,}$option"
659 # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
663 local opt
="dhcp_option"
665 [ "$force" = "0" ] && force
=
666 [ "$force" = "2" ] && opt
="dhcp_option_force"
669 config_get list_len
"$cfg" "${opt}_LENGTH"
671 if [ -n "$list_len" ]; then
672 config_list_foreach
"$cfg" "$opt" dhcp_option_append
"$networkid" "$force"
674 config_get dhcp_option
"$cfg" "$opt"
676 [ -n "$dhcp_option" ] && echo "Warning: the 'option $opt' syntax is deprecated, use 'list $opt'" >&2
679 for option
in $dhcp_option; do
680 dhcp_option_append
"$option" "$networkid" "$force"
687 local ip name names record
689 config_get names
"$cfg" name
"$2"
690 [ -n "$names" ] ||
return 0
692 config_get ip
"$cfg" ip
"$3"
693 [ -n "$ip" ] ||
return 0
695 for name
in $names; do
696 record
="${record:+$record }$name"
699 echo "$ip $record" >> $HOSTFILE_TMP
705 config_get srv
"$cfg" srv
706 [ -n "$srv" ] ||
return 0
708 config_get target
"$cfg" target
709 [ -n "$target" ] ||
return 0
711 config_get port
"$cfg" port
712 [ -n "$port" ] ||
return 0
714 config_get class
"$cfg" class
715 config_get weight
"$cfg" weight
717 local service
="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
719 xappend
"--srv-host=$service"
724 local domain relay pref
726 config_get domain
"$cfg" domain
727 [ -n "$domain" ] ||
return 0
729 config_get relay
"$cfg" relay
730 [ -n "$relay" ] ||
return 0
732 config_get pref
"$cfg" pref
0
734 local service
="$domain,$relay,$pref"
736 xappend
"--mx-host=$service"
743 config_get cname
"$cfg" cname
744 [ -n "$cname" ] ||
return 0
746 config_get target
"$cfg" target
747 [ -n "$target" ] ||
return 0
749 xappend
"--cname=${cname},${target}"
752 dhcp_hostrecord_add
() {
754 local names addresses record val
756 config_get names
"$cfg" name
"$2"
757 if [ -z "$names" ]; then
761 config_get addresses
"$cfg" ip
"$3"
762 if [ -z "$addresses" ]; then
766 for val
in $names $addresses; do
767 record
="${record:+$record,}$val"
770 xappend
"--host-record=$record"
775 local local_addr server_addr interface
777 config_get local_addr
"$cfg" local_addr
778 [ -n "$local_addr" ] ||
return 0
780 config_get server_addr
"$cfg" server_addr
781 [ -n "$server_addr" ] ||
return 0
783 config_get interface
"$cfg" interface
784 if [ -z "$interface" ]; then
785 xappend
"--dhcp-relay=$local_addr,$server_addr"
787 network_get_device ifname
"$interface" ||
return
788 xappend
"--dhcp-relay=$local_addr,$server_addr,$ifname"
792 dnsmasq_ipset_add
() {
797 ipsets
="${ipsets:+$ipsets,}$1"
801 # leading '/' is expected
802 domains
="$domains/$1"
805 config_list_foreach
"$cfg" "name" add_ipset
806 config_list_foreach
"$cfg" "domain" add_domain
808 if [ -z "$ipsets" ] ||
[ -z "$domains" ]; then
812 xappend
"--ipset=$domains/$ipsets"
818 local disabled user_dhcpscript
819 local resolvfile resolvdir localuse
=0
821 config_get_bool disabled
"$cfg" disabled
0
822 [ "$disabled" -gt 0 ] && return 0
824 # reset list of DOMAINS, DNS servers and EXTRA mounts (for each dnsmasq instance)
828 CONFIGFILE
="${BASECONFIGFILE}.${cfg}"
829 CONFIGFILE_TMP
="${CONFIGFILE}.$$"
830 HOSTFILE
="${BASEHOSTFILE}.${cfg}"
831 HOSTFILE_TMP
="${HOSTFILE}.$$"
832 HOSTFILE_DIR
="$(dirname "$HOSTFILE")"
833 BASEDHCPSTAMPFILE_CFG
="${BASEDHCPSTAMPFILE}.${cfg}"
835 # before we can call xappend
836 umask u
=rwx
,g
=rx
,o
=rx
837 mkdir
-p /var
/run
/dnsmasq
/
838 mkdir
-p $
(dirname $CONFIGFILE)
839 mkdir
-p "$HOSTFILE_DIR"
840 mkdir
-p /var
/lib
/misc
841 chown dnsmasq
:dnsmasq
/var
/run
/dnsmasq
843 echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE_TMP
844 echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE_TMP
846 local dnsmasqconffile
="/etc/dnsmasq.${cfg}.conf"
847 if [ ! -r "$dnsmasqconffile" ]; then
848 dnsmasqconffile
=/etc
/dnsmasq.conf
851 # if we did this last, we could override auto-generated config
852 [ -f "${dnsmasqconffile}" ] && {
853 xappend
"--conf-file=${dnsmasqconffile}"
856 $PROG --version |
grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE
=1 || DHCPv6CAPABLE
=0
859 if [ -x /usr
/sbin
/odhcpd
] && [ -x /etc
/init.d
/odhcpd
] ; then
860 local odhcpd_is_main odhcpd_is_enabled
861 config_get odhcpd_is_main odhcpd maindhcp
0
862 /etc
/init.d
/odhcpd enabled
&& odhcpd_is_enabled
=1 || odhcpd_is_enabled
=0
865 if [ "$odhcpd_is_enabled" -eq 0 ] && [ "$DHCPv6CAPABLE" -eq 1 ] ; then
866 # DHCP V4 and V6 in DNSMASQ
868 elif [ "$odhcpd_is_main" -gt 0 ] ; then
869 # ODHCPD is doing it all
872 # You have ODHCPD but use DNSMASQ for DHCPV4
876 elif [ "$DHCPv6CAPABLE" -eq 1 ] ; then
877 # DHCP V4 and V6 in DNSMASQ
883 # Allow DHCP/DHCPv6 to be handled by ISC DHCPD
884 if [ -x /usr
/sbin
/dhcpd
] ; then
885 if [ -x /etc
/init.d
/dhcpd
] ; then
886 /etc
/init.d
/dhcpd enabled
&& DNSMASQ_DHCP_VER
=0
888 if [ -x /etc
/init.d
/dhcpd6
] && [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
889 /etc
/init.d
/dhcpd6 enabled
&& DNSMASQ_DHCP_VER
=4
893 append_bool
"$cfg" authoritative
"--dhcp-authoritative"
894 append_bool
"$cfg" nodaemon
"--no-daemon"
895 append_bool
"$cfg" domainneeded
"--domain-needed"
896 append_bool
"$cfg" filterwin2k
"--filterwin2k"
897 append_bool
"$cfg" nohosts
"--no-hosts"
898 append_bool
"$cfg" nonegcache
"--no-negcache"
899 append_bool
"$cfg" strictorder
"--strict-order"
900 append_bool
"$cfg" logqueries
"--log-queries=extra"
901 append_bool
"$cfg" noresolv
"--no-resolv"
902 append_bool
"$cfg" localise_queries
"--localise-queries"
903 append_bool
"$cfg" readethers
"--read-ethers"
905 local instance_name
="dnsmasq.$cfg"
906 if [ "$cfg" = "$DEFAULT_INSTANCE" ]; then
907 instance_name
="dnsmasq"
909 config_get_bool dbus
"$cfg" "dbus" 0
910 [ $dbus -gt 0 ] && xappend
"--enable-dbus=uk.org.thekelleys.$instance_name"
911 config_get_bool ubus
"$cfg" "ubus" 1
912 [ $ubus -gt 0 ] && xappend
"--enable-ubus=$instance_name"
914 append_bool
"$cfg" expandhosts
"--expand-hosts"
915 config_get tftp_root
"$cfg" "tftp_root"
916 [ -n "$tftp_root" ] && mkdir
-p "$tftp_root" && append_bool
"$cfg" enable_tftp
"--enable-tftp"
917 append_bool
"$cfg" tftp_no_fail
"--tftp-no-fail"
918 append_bool
"$cfg" nonwildcard
"--bind-dynamic" 1
919 append_bool
"$cfg" fqdn
"--dhcp-fqdn"
920 append_bool
"$cfg" proxydnssec
"--proxy-dnssec"
921 append_bool
"$cfg" localservice
"--local-service"
922 append_bool
"$cfg" logdhcp
"--log-dhcp"
923 append_bool
"$cfg" quietdhcp
"--quiet-dhcp"
924 append_bool
"$cfg" sequential_ip
"--dhcp-sequential-ip"
925 append_bool
"$cfg" allservers
"--all-servers"
926 append_bool
"$cfg" noping
"--no-ping"
927 append_bool
"$cfg" rapidcommit
"--dhcp-rapid-commit"
928 append_bool
"$cfg" scriptarp
"--script-arp"
930 append_parm
"$cfg" logfacility
"--log-facility"
932 append_parm
"$cfg" cachesize
"--cache-size"
933 append_parm
"$cfg" dnsforwardmax
"--dns-forward-max"
934 append_parm
"$cfg" port
"--port"
935 append_parm
"$cfg" ednspacket_max
"--edns-packet-max"
936 append_parm
"$cfg" dhcpleasemax
"--dhcp-lease-max"
937 append_parm
"$cfg" "queryport" "--query-port"
938 append_parm
"$cfg" "minport" "--min-port"
939 append_parm
"$cfg" "maxport" "--max-port"
940 append_parm
"$cfg" "domain" "--domain"
941 append_parm
"$cfg" "local" "--local"
942 config_list_foreach
"$cfg" "listen_address" append_listenaddress
943 config_list_foreach
"$cfg" "server" append_server
944 config_list_foreach
"$cfg" "rev_server" append_rev_server
945 config_list_foreach
"$cfg" "address" append_address
946 config_list_foreach
"$cfg" "ipset" append_ipset
948 local connmark_allowlist_enable
949 config_get connmark_allowlist_enable
"$cfg" connmark_allowlist_enable
0
950 [ "$connmark_allowlist_enable" -gt 0 ] && {
951 append_parm
"$cfg" "connmark_allowlist_enable" "--connmark-allowlist-enable"
952 config_list_foreach
"$cfg" "connmark_allowlist" append_connmark_allowlist
956 config_list_foreach
"$cfg" "interface" append_interface
957 config_list_foreach
"$cfg" "notinterface" append_notinterface
959 config_get_bool ignore_hosts_dir
"$cfg" ignore_hosts_dir
0
960 if [ "$ignore_hosts_dir" = "1" ]; then
961 xappend
"--addn-hosts=$HOSTFILE"
962 append EXTRA_MOUNT
"$HOSTFILE"
964 xappend
"--addn-hosts=$HOSTFILE_DIR"
965 append EXTRA_MOUNT
"$HOSTFILE_DIR"
967 config_list_foreach
"$cfg" "addnhosts" append_addnhosts
968 config_list_foreach
"$cfg" "bogusnxdomain" append_bogusnxdomain
969 append_parm
"$cfg" "leasefile" "--dhcp-leasefile" "/tmp/dhcp.leases"
970 append_parm
"$cfg" "serversfile" "--servers-file"
971 append_parm
"$cfg" "tftp_root" "--tftp-root"
972 append_parm
"$cfg" "dhcp_boot" "--dhcp-boot"
973 append_parm
"$cfg" "local_ttl" "--local-ttl"
974 append_parm
"$cfg" "max_ttl" "--max-ttl"
975 append_parm
"$cfg" "min_cache_ttl" "--min-cache-ttl"
976 append_parm
"$cfg" "max_cache_ttl" "--max-cache-ttl"
977 append_parm
"$cfg" "pxe_prompt" "--pxe-prompt"
978 append_parm
"$cfg" "tftp_unique_root" "--tftp-unique-root"
979 config_list_foreach
"$cfg" "pxe_service" append_pxe_service
980 config_get DOMAIN
"$cfg" domain
982 config_get_bool ADD_LOCAL_DOMAIN
"$cfg" add_local_domain
1
983 config_get_bool ADD_LOCAL_HOSTNAME
"$cfg" add_local_hostname
1
984 config_get ADD_LOCAL_FQDN
"$cfg" add_local_fqdn
""
985 config_get ADD_WAN_FQDN
"$cfg" add_wan_fqdn
0
987 if [ -z "$ADD_LOCAL_FQDN" ] ; then
988 # maintain support for previous UCI
989 ADD_LOCAL_FQDN
="$ADD_LOCAL_HOSTNAME"
992 config_get user_dhcpscript
$cfg dhcpscript
993 if has_handler ||
[ -n "$user_dhcpscript" ]; then
994 xappend
"--dhcp-script=$DHCPSCRIPT"
995 xappend
"--script-arp"
998 config_get leasefile
$cfg leasefile
"/tmp/dhcp.leases"
999 [ -n "$leasefile" ] && [ ! -e "$leasefile" ] && touch "$leasefile"
1000 config_get_bool cachelocal
"$cfg" cachelocal
1
1002 config_get_bool noresolv
"$cfg" noresolv
0
1003 if [ "$noresolv" != "1" ]; then
1004 config_get resolvfile
"$cfg" resolvfile
/tmp
/resolv.conf.d
/resolv.conf.auto
1005 [ -n "$resolvfile" ] && [ ! -e "$resolvfile" ] && touch "$resolvfile"
1006 xappend
"--resolv-file=$resolvfile"
1007 [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse
=1
1008 resolvdir
="$(dirname "$resolvfile")"
1010 config_get_bool localuse
"$cfg" localuse
"$localuse"
1012 config_get hostsfile
"$cfg" dhcphostsfile
1013 [ -e "$hostsfile" ] && xappend
"--dhcp-hostsfile=$hostsfile"
1016 config_get_bool rebind
"$cfg" rebind_protection
1
1017 [ $rebind -gt 0 ] && {
1019 "DNS rebinding protection is active," \
1020 "will discard upstream RFC1918 responses!"
1021 xappend
"--stop-dns-rebind"
1023 local rebind_localhost
1024 config_get_bool rebind_localhost
"$cfg" rebind_localhost
0
1025 [ $rebind_localhost -gt 0 ] && {
1026 log_once
"Allowing 127.0.0.0/8 responses"
1027 xappend
"--rebind-localhost-ok"
1030 append_rebind_domain
() {
1031 log_once
"Allowing RFC1918 responses for domain $1"
1032 xappend
"--rebind-domain-ok=$1"
1035 config_list_foreach
"$cfg" rebind_domain append_rebind_domain
1038 config_get_bool dnssec
"$cfg" dnssec
0
1039 [ "$dnssec" -gt 0 ] && {
1040 xappend
"--conf-file=$TRUSTANCHORSFILE"
1042 [ -x /etc
/init.d
/sysntpd
] && {
1043 if /etc
/init.d
/sysntpd enabled ||
[ "$(uci_get system.ntp.enabled)" = "1" ] ; then
1044 [ -f "$TIMEVALIDFILE" ] || xappend
"--dnssec-no-timecheck"
1047 config_get_bool dnsseccheckunsigned
"$cfg" dnsseccheckunsigned
1
1048 [ "$dnsseccheckunsigned" -eq 0 ] && xappend
"--dnssec-check-unsigned=no"
1051 config_get addmac
"$cfg" addmac
0
1052 [ "$addmac" != "0" ] && {
1053 [ "$addmac" = "1" ] && addmac
=
1054 xappend
"--add-mac${addmac:+="$addmac"}"
1057 dhcp_option_add
"$cfg" "" 0
1058 dhcp_option_add
"$cfg" "" 2
1060 xappend
"--dhcp-broadcast=tag:needs-broadcast"
1063 config_get dnsmasqconfdir
"$cfg" confdir
"/tmp/dnsmasq.d"
1064 xappend
"--conf-dir=$dnsmasqconfdir"
1065 dnsmasqconfdir
="${dnsmasqconfdir%%,*}"
1066 [ ! -d "$dnsmasqconfdir" ] && mkdir
-p $dnsmasqconfdir
1067 xappend
"--user=dnsmasq"
1068 xappend
"--group=dnsmasq"
1069 echo >> $CONFIGFILE_TMP
1071 config_get_bool enable_tftp
"$cfg" enable_tftp
0
1072 [ "$enable_tftp" -gt 0 ] && {
1073 config_get tftp_root
"$cfg" tftp_root
1074 append EXTRA_MOUNT
$tftp_root
1077 config_foreach filter_dnsmasq
host dhcp_host_add
"$cfg"
1078 echo >> $CONFIGFILE_TMP
1080 config_get_bool dhcpbogushostname
"$cfg" dhcpbogushostname
1
1081 [ "$dhcpbogushostname" -gt 0 ] && {
1082 xappend
"--dhcp-ignore-names=tag:dhcp_bogus_hostname"
1083 [ -r "$DHCPBOGUSHOSTNAMEFILE" ] && xappend
"--conf-file=$DHCPBOGUSHOSTNAMEFILE"
1086 config_foreach filter_dnsmasq boot dhcp_boot_add
"$cfg"
1087 config_foreach filter_dnsmasq mac dhcp_mac_add
"$cfg"
1088 config_foreach filter_dnsmasq tag dhcp_tag_add
"$cfg"
1089 config_foreach filter_dnsmasq vendorclass dhcp_vendorclass_add
"$cfg"
1090 config_foreach filter_dnsmasq userclass dhcp_userclass_add
"$cfg"
1091 config_foreach filter_dnsmasq circuitid dhcp_circuitid_add
"$cfg"
1092 config_foreach filter_dnsmasq remoteid dhcp_remoteid_add
"$cfg"
1093 config_foreach filter_dnsmasq subscrid dhcp_subscrid_add
"$cfg"
1094 config_foreach filter_dnsmasq match dhcp_match_add
"$cfg"
1095 config_foreach filter_dnsmasq domain dhcp_domain_add
"$cfg"
1096 config_foreach filter_dnsmasq hostrecord dhcp_hostrecord_add
"$cfg"
1097 [ -n "$BOOT" ] || config_foreach filter_dnsmasq relay dhcp_relay_add
"$cfg"
1099 echo >> $CONFIGFILE_TMP
1100 config_foreach filter_dnsmasq srvhost dhcp_srv_add
"$cfg"
1101 config_foreach filter_dnsmasq mxhost dhcp_mx_add
"$cfg"
1102 echo >> $CONFIGFILE_TMP
1104 config_get_bool boguspriv
"$cfg" boguspriv
1
1105 [ "$boguspriv" -gt 0 ] && {
1106 xappend
"--bogus-priv"
1107 [ -r "$RFC6761FILE" ] && xappend
"--conf-file=$RFC6761FILE"
1110 if [ "$DNSMASQ_DHCP_VER" -gt 4 ] ; then
1111 # Enable RA feature for when/if it is constructed,
1112 # and RA is selected per interface pool (RA, DHCP, or both),
1113 # but no one (should) want RA broadcast in syslog
1114 [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add
"$cfg"
1115 xappend
"--enable-ra"
1116 xappend
"--quiet-ra"
1117 append_bool
"$cfg" quietdhcp
"--quiet-dhcp6"
1119 elif [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
1120 [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add
"$cfg"
1124 echo >> $CONFIGFILE_TMP
1125 config_foreach filter_dnsmasq cname dhcp_cname_add
"$cfg"
1126 echo >> $CONFIGFILE_TMP
1128 echo >> $CONFIGFILE_TMP
1129 config_foreach filter_dnsmasq ipset dnsmasq_ipset_add
"$cfg"
1130 echo >> $CONFIGFILE_TMP
1132 echo >> $CONFIGFILE_TMP
1133 mv -f $CONFIGFILE_TMP $CONFIGFILE
1134 mv -f $HOSTFILE_TMP $HOSTFILE
1136 [ "$localuse" -gt 0 ] && {
1137 rm -f /tmp
/resolv.conf
1138 [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
1139 echo "search $DOMAIN" >> /tmp
/resolv.conf
1141 DNS_SERVERS
="$DNS_SERVERS 127.0.0.1"
1142 [ -e /proc
/sys
/net
/ipv6
] && DNS_SERVERS
="$DNS_SERVERS ::1"
1143 for DNS_SERVER
in $DNS_SERVERS ; do
1144 echo "nameserver $DNS_SERVER" >> /tmp
/resolv.conf
1148 procd_open_instance
$cfg
1149 procd_set_param
command $PROG -C $CONFIGFILE -k -x /var
/run
/dnsmasq
/dnsmasq.
"${cfg}".pid
1150 procd_set_param
file $CONFIGFILE
1151 [ -n "$user_dhcpscript" ] && procd_set_param env USER_DHCPSCRIPT
="$user_dhcpscript"
1152 procd_set_param respawn
1154 procd_add_jail dnsmasq ubus log
1155 procd_add_jail_mount
$CONFIGFILE $DHCPBOGUSHOSTNAMEFILE $DHCPSCRIPT $DHCPSCRIPT_DEPENDS
1156 procd_add_jail_mount
$EXTRA_MOUNT $RFC6761FILE $TRUSTANCHORSFILE
1157 procd_add_jail_mount
$dnsmasqconffile $dnsmasqconfdir $resolvdir $user_dhcpscript
1158 procd_add_jail_mount
/etc
/passwd
/etc
/group
/etc
/TZ
/etc
/hosts
/etc
/ethers
1159 procd_add_jail_mount_rw
/var
/run
/dnsmasq
/ $leasefile
1161 procd_close_instance
1167 local noresolv resolvfile localuse
=0
1169 config_get_bool noresolv
"$cfg" noresolv
0
1170 config_get resolvfile
"$cfg" "resolvfile"
1172 [ "$noresolv" = 0 ] && [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse
=1
1173 config_get_bool localuse
"$cfg" localuse
"$localuse"
1174 [ "$localuse" -gt 0 ] && ln -sf "/tmp/resolv.conf.d/resolv.conf.auto" /tmp
/resolv.conf
1176 rm -f ${BASEDHCPSTAMPFILE}.
${cfg}.
*.dhcp
1179 add_interface_trigger
()
1181 local interface ignore
1183 config_get interface
"$1" interface
1184 config_get_bool ignore
"$1" ignore
0
1186 [ -n "$interface" ] && [ $ignore -eq 0 ] && procd_add_interface_trigger
"interface.*" "$interface" /etc
/init.d
/dnsmasq reload
1191 procd_add_reload_trigger
"dhcp" "system"
1194 config_foreach add_interface_trigger dhcp
1195 config_foreach add_interface_trigger relay
1206 local instance_found
=0
1207 local first_instance
=""
1209 .
/lib
/functions
/network.sh
1214 if [ "$type" = "dnsmasq" ]; then
1215 if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
1218 if [ -z "$DEFAULT_INSTANCE" ]; then
1220 config_get_bool disabled
"$name" disabled
0
1221 if [ "$disabled" -eq 0 ]; then
1222 # First enabled section will be assigned default instance name.
1223 # Unnamed sections get precedence over named sections.
1224 if expr "$cfg" : 'cfg[0-9a-f]*$' >/dev
/null
= "9"; then # See uci_fixup_section.
1225 DEFAULT_INSTANCE
="$name" # Unnamed config section.
1226 elif [ -z "$first_instance" ]; then
1227 first_instance
="$name"
1236 if [ -z "$DEFAULT_INSTANCE" ]; then
1237 DEFAULT_INSTANCE
="$first_instance" # No unnamed config section was found.
1240 if [ -n "$instance" ]; then
1241 [ "$instance_found" -gt 0 ] ||
return
1242 dnsmasq_start
"$instance"
1244 config_foreach dnsmasq_start dnsmasq
1249 rc_procd start_service
"$@"
1250 procd_send_signal dnsmasq
"$@"
1255 local instance_found
=0
1260 if [ "$type" = "dnsmasq" ]; then
1261 if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
1269 if [ -n "$instance" ]; then
1270 [ "$instance_found" -gt 0 ] ||
return
1271 dnsmasq_stop
"$instance"
1273 config_foreach dnsmasq_stop dnsmasq