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"
25 dnsmasq_ignore_opt() {
28 if [ -z "$dnsmasq_features" ]; then
29 dnsmasq_features="$(dnsmasq --version | grep -m1 'Compile time options:' | cut -d: -f2) "
30 [ "${dnsmasq_features#* DHCP }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp=1
31 [ "${dnsmasq_features#* DHCPv6 }" = "$dnsmasq_features" ] || dnsmasq_has_dhcp6=1
32 [ "${dnsmasq_features#* DNSSEC }" = "$dnsmasq_features" ] || dnsmasq_has_dnssec=1
33 [ "${dnsmasq_features#* TFTP }" = "$dnsmasq_features" ] || dnsmasq_has_tftp=1
34 [ "${dnsmasq_features#* ipset }" = "$dnsmasq_features" ] || dnsmasq_has_ipset=1
40 [ -z "$dnsmasq_has_dhcp6" ] ;;
44 [ -z "$dnsmasq_has_dhcp" ] ;;
47 [ -z "$dnsmasq_has_dnssec" ] ;;
49 [ -z "$dnsmasq_has_tftp" ] ;;
51 [ -z "$dnsmasq_has_ipset" ] ;;
59 local opt="${value%%=*}"
61 if ! dnsmasq_ignore_opt "$opt"; then
62 echo "$value" >>$CONFIGFILE_TMP
68 local hex="${2#0x}" # strip optional "0x" prefix
70 if [ -n "${hex//[0-9a-fA-F]/}" ]; then
71 # is invalid hex literal
75 # convert into host id
78 $(((0x$hex >> 16) % 65536)) \
89 while [ -n "$ip" ]; do
92 res="$(($res + $part))"
93 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
100 local stamp="${BASEDHCPSTAMPFILE_CFG}.${ifname}.dhcp"
103 [ -s "$stamp" ] && return $(cat "$stamp")
105 # If there's no carrier yet, skip this interface.
106 # The init script will be called again once the link is up
107 case "$(devstatus "$ifname" | jsonfilter -e @.carrier)" in
111 udhcpc -n -q -s /bin/true -t 1 -i "$ifname" >&- && rv=1 || rv=0
118 pidof dnsmasq >/dev/null || \
119 logger -t dnsmasq "$@"
125 for file in /etc/hotplug.d/dhcp/* /etc/hotplug.d/tftp/* /etc/hotplug.d/neigh/*; do
126 [ -f "$file" ] && return 0
138 [ -z "$default" ] && default="0"
139 config_get_bool _loctmp "$section" "$option" "$default"
140 [ $_loctmp -gt 0 ] && xappend "$value"
149 config_get _loctmp "$section" "$option" "$default"
150 [ -z "$_loctmp" ] && return 0
151 xappend "$switch=$_loctmp"
155 xappend "--server=$1"
158 append_rev_server() {
159 xappend "--rev-server=$1"
163 xappend "--address=$1"
171 network_get_device ifname "$1" || ifname="$1"
172 xappend "--interface=$ifname"
175 append_listenaddress() {
176 xappend "--listen-address=$1"
179 append_notinterface() {
180 network_get_device ifname "$1" || ifname="$1"
181 xappend "--except-interface=$ifname"
185 xappend "--addn-hosts=$1"
188 append_bogusnxdomain() {
189 xappend "--bogus-nxdomain=$1"
192 append_pxe_service() {
193 xappend "--pxe-service=$1"
196 append_interface_name() {
197 xappend "--interface-name=$1,$2"
201 local cfg="$1" func="$2" match_cfg="$3" found_cfg
203 # use entry when no instance entry set, or if it matches
204 config_get found_cfg "$cfg" "instance"
205 if [ -z "$found_cfg" ] || [ "$found_cfg" = "$match_cfg" ]; then
210 dhcp_subscrid_add() {
213 config_get networkid "$cfg" networkid
214 [ -n "$networkid" ] || return 0
216 config_get subscriberid "$cfg" subscriberid
217 [ -n "$subscriberid" ] || return 0
219 xappend "--dhcp-subscrid=$networkid,$subscriberid"
221 config_get_bool force "$cfg" force 0
223 dhcp_option_add "$cfg" "$networkid" "$force"
226 dhcp_remoteid_add() {
229 config_get networkid "$cfg" networkid
230 [ -n "$networkid" ] || return 0
232 config_get remoteid "$cfg" remoteid
233 [ -n "$remoteid" ] || return 0
235 xappend "--dhcp-remoteid=$networkid,$remoteid"
237 config_get_bool force "$cfg" force 0
239 dhcp_option_add "$cfg" "$networkid" "$force"
242 dhcp_circuitid_add() {
243 # TODO: DHCPV6 does not have circuitid; catch "option6:"
246 config_get networkid "$cfg" networkid
247 [ -n "$networkid" ] || return 0
249 config_get circuitid "$cfg" circuitid
250 [ -n "$circuitid" ] || return 0
252 xappend "--dhcp-circuitid=$networkid,$circuitid"
254 config_get_bool force "$cfg" force 0
256 dhcp_option_add "$cfg" "$networkid" "$force"
259 dhcp_userclass_add() {
262 config_get networkid "$cfg" networkid
263 [ -n "$networkid" ] || return 0
265 config_get userclass "$cfg" userclass
266 [ -n "$userclass" ] || return 0
268 xappend "--dhcp-userclass=$networkid,$userclass"
270 config_get_bool force "$cfg" force 0
272 dhcp_option_add "$cfg" "$networkid" "$force"
275 dhcp_vendorclass_add() {
276 # TODO: DHCPV6 vendor class has stricter definitions; catch? fixup?
279 config_get networkid "$cfg" networkid
280 [ -n "$networkid" ] || return 0
282 config_get vendorclass "$cfg" vendorclass
283 [ -n "$vendorclass" ] || return 0
285 xappend "--dhcp-vendorclass=$networkid,$vendorclass"
287 config_get_bool force "$cfg" force 0
289 dhcp_option_add "$cfg" "$networkid" "$force"
295 config_get networkid "$cfg" networkid
296 [ -n "$networkid" ] || return 0
298 config_get match "$cfg" match
299 [ -n "$match" ] || return 0
301 xappend "--dhcp-match=$networkid,$match"
303 config_get_bool force "$cfg" force 0
305 dhcp_option_add "$cfg" "$networkid" "$force"
310 local hosttag nametime addrs duids macs tags
312 config_get_bool force "$cfg" force 0
314 config_get networkid "$cfg" networkid
315 [ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid" "$force"
317 config_get_bool enable "$cfg" enable 1
318 [ "$enable" = "0" ] && return 0
320 config_get name "$cfg" name
321 config_get ip "$cfg" ip
322 config_get hostid "$cfg" hostid
324 [ -z "$ip" ] && [ -z "$name" ] && [ -z "$hostid" ] && return 0
326 config_get_bool dns "$cfg" dns 0
327 [ "$dns" = "1" ] && [ -n "$ip" ] && [ -n "$name" ] && {
328 echo "$ip $name${DOMAIN:+.$DOMAIN}" >> $HOSTFILE_TMP
331 config_get mac "$cfg" mac
332 config_get duid "$cfg" duid
333 config_get tag "$cfg" tag
335 if [ -n "$mac" ]; then
336 # --dhcp-host=00:20:e0:3b:13:af,192.168.0.199,lap
337 # many MAC are possible to track a laptop ON/OFF dock
338 for m in $mac; do append macs "$m" ","; done
341 if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ -n "$duid" ]; then
342 # --dhcp-host=id:00:03:00:01:12:00:00:01:02:03,[::beef],lap
343 # one (virtual) machine gets one DUID per RFC3315
344 duids="id:${duid// */}"
347 if [ -z "$macs" ] && [ -z "$duids" ]; then
348 # --dhcp-host=lap,192.168.0.199,[::beef]
349 [ -n "$name" ] || return 0
354 if [ -n "$hostid" ]; then
355 hex_to_hostid hostid "$hostid"
358 if [ -n "$tag" ]; then
359 for t in $tag; do append tags "$t" ",set:"; done
362 config_get_bool broadcast "$cfg" broadcast 0
363 config_get leasetime "$cfg" leasetime
365 [ "$broadcast" = "0" ] && broadcast= || broadcast=",set:needs-broadcast"
367 hosttag="${networkid:+,set:${networkid}}${tags:+,set:${tags}}$broadcast"
368 nametime="${name:+,$name}${leasetime:+,$leasetime}"
370 if [ $DNSMASQ_DHCP_VER -eq 6 ]; then
371 addrs="${ip:+,$ip}${hostid:+,[::$hostid]}"
372 xappend "--dhcp-host=$macs${duids:+,$duids}$hosttag$addrs$nametime"
374 xappend "--dhcp-host=$macs$hosttag${ip:+,$ip}$nametime"
378 dhcp_this_host_add() {
382 local routerstub routername ifdashname
383 local lanaddr lanaddr6 lanaddrs6 ulaprefix
385 if [ "$mode" -gt 0 ] ; then
386 ifdashname="${ifname//./-}"
387 routerstub="$( md5sum /etc/os-release )"
388 routerstub="router-${routerstub// */}"
389 routername="$( uci_get system @system[0] hostname $routerstub )"
391 if [ "$mode" -gt 1 ] ; then
392 if [ "$mode" -gt 2 ] ; then
393 if [ "$mode" -gt 3 ] ; then
394 append_interface_name "$ifdashname.$routername.$DOMAIN" "$ifname"
397 append_interface_name "$routername.$DOMAIN" "$ifname"
400 # All IP addresses discovered by dnsmasq will be labeled (except fe80::)
401 append_interface_name "$routername" "$ifname"
404 # This uses a static host file entry for only limited addresses.
405 # Use dnsmasq option "--expandhosts" to enable FQDN on host files.
406 ulaprefix="$(uci_get network @globals[0] ula_prefix)"
407 network_get_ipaddr lanaddr "$net"
408 network_get_ipaddrs6 lanaddrs6 "$net"
410 if [ -n "$lanaddr" ] ; then
411 dhcp_domain_add "" "$routername" "$lanaddr"
414 if [ -n "$ulaprefix" ] && [ -n "$lanaddrs6" ] ; then
415 for lanaddr6 in $lanaddrs6 ; do
417 "${ulaprefix%%:/*}"*)
418 dhcp_domain_add "" "$routername" "$lanaddr6"
428 # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
433 [ -n "$tag" ] || return 0
435 config_get_bool force "$cfg" force 0
436 [ "$force" = "0" ] && force=
438 config_get option "$cfg" dhcp_option
440 xappend "--dhcp-option${force:+-force}=tag:$tag,$o"
447 config_get networkid "$cfg" networkid
448 [ -n "$networkid" ] || return 0
450 config_get mac "$cfg" mac
451 [ -n "$mac" ] || return 0
453 xappend "--dhcp-mac=$networkid,$mac"
455 dhcp_option_add "$cfg" "$networkid"
459 # TODO: BOOTURL is different between DHCPv4 and DHCPv6
462 config_get networkid "$cfg" networkid
464 config_get filename "$cfg" filename
465 [ -n "$filename" ] || return 0
467 config_get servername "$cfg" servername
468 config_get serveraddress "$cfg" serveraddress
470 [ -n "$serveraddress" ] && [ ! -n "$servername" ] && return 0
472 xappend "--dhcp-boot=${networkid:+net:$networkid,}${filename}${servername:+,$servername}${serveraddress:+,$serveraddress}"
474 config_get_bool force "$cfg" force 0
476 dhcp_option_add "$cfg" "$networkid" "$force"
482 local dhcp6range="::"
486 config_get net "$cfg" interface
487 [ -n "$net" ] || return 0
489 config_get networkid "$cfg" networkid
490 [ -n "$networkid" ] || networkid="$net"
492 network_get_device ifname "$net" || return 0
494 [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver "$net" && {
495 DNS_SERVERS="$DNS_SERVERS $dnsserver"
498 append_bool "$cfg" ignore "--no-dhcp-interface=$ifname" && {
499 # Many ISP do not have useful names for DHCP customers (your WAN).
500 dhcp_this_host_add "$net" "$ifname" "$ADD_WAN_FQDN"
504 network_get_subnet subnet "$net" || return 0
505 network_get_protocol proto "$net" || return 0
507 # Do not support non-static interfaces for now
508 [ static = "$proto" ] || return 0
510 # Override interface netmask with dhcp config if applicable
511 config_get netmask "$cfg" netmask "${subnet##*/}"
513 #check for an already active dhcp server on the interface, unless 'force' is set
514 config_get_bool force "$cfg" force 0
515 [ $force -gt 0 ] || dhcp_check "$ifname" || {
517 "found already running DHCP-server on interface '$ifname'" \
518 "refusing to start, use 'option force 1' to override"
522 config_get start "$cfg" start 100
523 config_get limit "$cfg" limit 150
524 config_get leasetime "$cfg" leasetime 12h
525 config_get options "$cfg" options
526 config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
528 config_get dhcpv4 "$cfg" dhcpv4
529 config_get dhcpv6 "$cfg" dhcpv6
531 config_get ra "$cfg" ra
532 config_get ra_management "$cfg" ra_management
533 config_get ra_preference "$cfg" ra_preference
534 config_get dns "$cfg" dns
536 config_list_foreach "$cfg" "interface_name" append_interface_name "$ifname"
538 # Put the router host name on this DHCP served interface address(es)
539 dhcp_this_host_add "$net" "$ifname" "$ADD_LOCAL_FQDN"
541 start="$( dhcp_calc "$start" )"
544 tags="${tags}tag:$1,"
546 config_list_foreach "$cfg" tag add_tag
548 nettag="${networkid:+set:${networkid},}"
550 if [ "$limit" -gt 0 ] ; then
554 eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
556 if [ "$dynamicdhcp" = "0" ] ; then
558 dhcp6range="::,static"
560 dhcp6range="::1000,::ffff"
564 if [ "$dhcpv4" != "disabled" ] ; then
565 xappend "--dhcp-range=$tags$nettag$START,$END,$NETMASK,$leasetime${options:+ $options}"
569 if [ $DNSMASQ_DHCP_VER -eq 6 ] && [ "$ra" = "server" ] ; then
570 # Note: dnsmasq cannot just be a DHCPv6 server (all-in-1)
571 # and let some other machine(s) send RA pointing to it.
573 case $ra_preference in
575 xappend "--ra-param=$ifname,high,0,7200"
578 xappend "--ra-param=$ifname,low,0,7200"
581 # Send UNSOLICITED RA at default interval and live for 2 hours.
582 # TODO: convert flexible lease time into route life time (only seconds).
583 xappend "--ra-param=$ifname,0,7200"
587 if [ "$dhcpv6" = "disabled" ] ; then
592 case $ra_management in
594 # SLACC with DCHP for extended options
595 xappend "--dhcp-range=$nettag::,constructor:$ifname,ra-stateless,ra-names"
598 # DHCP address and RA only for management redirection
599 xappend "--dhcp-range=$nettag$dhcp6range,constructor:$ifname,$leasetime"
602 # SLAAC only but dnsmasq attempts to link HOSTNAME, DHCPv4 MAC, and SLAAC
603 xappend "--dhcp-range=$nettag::,constructor:$ifname,ra-only,ra-names"
606 # SLAAC and full DHCP
607 xappend "--dhcp-range=$nettag$dhcp6range,constructor:$ifname,slaac,ra-names,$leasetime"
611 if [ -n "$dns" ]; then
613 for d in $dns; do append dnss "[$d]" ","; done
618 dhcp_option_append "option6:dns-server,$dnss" "$networkid"
621 dhcp_option_add "$cfg" "$networkid" 0
622 dhcp_option_add "$cfg" "$networkid" 2
625 dhcp_option_append() {
630 xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$option"
634 # NOTE: dnsmasq has explicit "option6:" prefix for DHCPv6 so no collisions
638 local opt="dhcp_option"
640 [ "$force" = "0" ] && force=
641 [ "$force" = "2" ] && opt="dhcp_option_force"
644 config_get list_len "$cfg" "${opt}_LENGTH"
646 if [ -n "$list_len" ]; then
647 config_list_foreach "$cfg" "$opt" dhcp_option_append "$networkid" "$force"
649 config_get dhcp_option "$cfg" "$opt"
651 [ -n "$dhcp_option" ] && echo "Warning: the 'option $opt' syntax is deprecated, use 'list $opt'" >&2
654 for option in $dhcp_option; do
655 dhcp_option_append "$option" "$networkid" "$force"
662 local ip name names record
664 config_get names "$cfg" name "$2"
665 [ -n "$names" ] || return 0
667 config_get ip "$cfg" ip "$3"
668 [ -n "$ip" ] || return 0
670 for name in $names; do
671 record="${record:+$record }$name"
674 echo "$ip $record" >> $HOSTFILE_TMP
680 config_get srv "$cfg" srv
681 [ -n "$srv" ] || return 0
683 config_get target "$cfg" target
684 [ -n "$target" ] || return 0
686 config_get port "$cfg" port
687 [ -n "$port" ] || return 0
689 config_get class "$cfg" class
690 config_get weight "$cfg" weight
692 local service="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
694 xappend "--srv-host=$service"
699 local domain relay pref
701 config_get domain "$cfg" domain
702 [ -n "$domain" ] || return 0
704 config_get relay "$cfg" relay
705 [ -n "$relay" ] || return 0
707 config_get pref "$cfg" pref 0
709 local service="$domain,$relay,$pref"
711 xappend "--mx-host=$service"
718 config_get cname "$cfg" cname
719 [ -n "$cname" ] || return 0
721 config_get target "$cfg" target
722 [ -n "$target" ] || return 0
724 xappend "--cname=${cname},${target}"
727 dhcp_hostrecord_add() {
729 local names addresses record val
731 config_get names "$cfg" name "$2"
732 if [ -z "$names" ]; then
736 config_get addresses "$cfg" ip "$3"
737 if [ -z "$addresses" ]; then
741 for val in $names $addresses; do
742 record="${record:+$record,}$val"
745 xappend "--host-record=$record"
750 local local_addr server_addr interface
752 config_get local_addr "$cfg" local_addr
753 [ -n "$local_addr" ] || return 0
755 config_get server_addr "$cfg" server_addr
756 [ -n "$server_addr" ] || return 0
758 config_get interface "$cfg" interface
759 if [ -z "$interface" ]; then
760 xappend "--dhcp-relay=$local_addr,$server_addr"
762 network_get_device ifname "$interface" || return
763 xappend "--dhcp-relay=$local_addr,$server_addr,$ifname"
770 local disabled user_dhcpscript
771 local resolvfile resolvdir localuse=0
773 config_get_bool disabled "$cfg" disabled 0
774 [ "$disabled" -gt 0 ] && return 0
776 # reset list of DOMAINS and DNS servers (for each dnsmasq instance)
779 CONFIGFILE="${BASECONFIGFILE}.${cfg}"
780 CONFIGFILE_TMP="${CONFIGFILE}.$$"
781 HOSTFILE="${BASEHOSTFILE}.${cfg}"
782 HOSTFILE_TMP="${HOSTFILE}.$$"
783 BASEDHCPSTAMPFILE_CFG="${BASEDHCPSTAMPFILE}.${cfg}"
785 # before we can call xappend
786 mkdir -p /var/run/dnsmasq/
787 mkdir -p $(dirname $CONFIGFILE)
788 mkdir -p $(dirname $HOSTFILE)
789 mkdir -p /var/lib/misc
790 chown dnsmasq:dnsmasq /var/run/dnsmasq
792 echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE_TMP
793 echo "# auto-generated config file from /etc/config/dhcp" > $HOSTFILE_TMP
795 local dnsmasqconffile="/etc/dnsmasq.${cfg}.conf"
796 if [ ! -r "$dnsmasqconffile" ]; then
797 dnsmasqconffile=/etc/dnsmasq.conf
800 # if we did this last, we could override auto-generated config
801 [ -f "${dnsmasqconffile}" ] && {
802 xappend "--conf-file=${dnsmasqconffile}"
805 $PROG --version | grep -osqE "^Compile time options:.* DHCPv6( |$)" && DHCPv6CAPABLE=1 || DHCPv6CAPABLE=0
808 if [ -x /usr/sbin/odhcpd ] && [ -x /etc/init.d/odhcpd ] ; then
809 local odhcpd_is_main odhcpd_is_enabled
810 config_get odhcpd_is_main odhcpd maindhcp 0
811 /etc/init.d/odhcpd enabled && odhcpd_is_enabled=1 || odhcpd_is_enabled=0
814 if [ "$odhcpd_is_enabled" -eq 0 ] && [ "$DHCPv6CAPABLE" -eq 1 ] ; then
815 # DHCP V4 and V6 in DNSMASQ
817 elif [ "$odhcpd_is_main" -gt 0 ] ; then
818 # ODHCPD is doing it all
821 # You have ODHCPD but use DNSMASQ for DHCPV4
825 elif [ "$DHCPv6CAPABLE" -eq 1 ] ; then
826 # DHCP V4 and V6 in DNSMASQ
832 # Allow DHCP/DHCPv6 to be handled by ISC DHCPD
833 if [ -x /usr/sbin/dhcpd ] ; then
834 if [ -x /etc/init.d/dhcpd ] ; then
835 /etc/init.d/dhcpd enabled && DNSMASQ_DHCP_VER=0
837 if [ -x /etc/init.d/dhcpd6 ] && [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
838 /etc/init.d/dhcpd6 enabled && DNSMASQ_DHCP_VER=4
842 append_bool "$cfg" authoritative "--dhcp-authoritative"
843 append_bool "$cfg" nodaemon "--no-daemon"
844 append_bool "$cfg" domainneeded "--domain-needed"
845 append_bool "$cfg" filterwin2k "--filterwin2k"
846 append_bool "$cfg" nohosts "--no-hosts"
847 append_bool "$cfg" nonegcache "--no-negcache"
848 append_bool "$cfg" strictorder "--strict-order"
849 append_bool "$cfg" logqueries "--log-queries=extra"
850 append_bool "$cfg" noresolv "--no-resolv"
851 append_bool "$cfg" localise_queries "--localise-queries"
852 append_bool "$cfg" readethers "--read-ethers"
853 append_bool "$cfg" dbus "--enable-dbus"
854 append_bool "$cfg" ubus "--enable-ubus" 1
855 append_bool "$cfg" expandhosts "--expand-hosts"
856 config_get tftp_root "$cfg" "tftp_root"
857 [ -n "$tftp_root" ] && mkdir -p "$tftp_root" && append_bool "$cfg" enable_tftp "--enable-tftp"
858 append_bool "$cfg" tftp_no_fail "--tftp-no-fail"
859 append_bool "$cfg" nonwildcard "--bind-dynamic" 1
860 append_bool "$cfg" fqdn "--dhcp-fqdn"
861 append_bool "$cfg" proxydnssec "--proxy-dnssec"
862 append_bool "$cfg" localservice "--local-service"
863 append_bool "$cfg" logdhcp "--log-dhcp"
864 append_bool "$cfg" quietdhcp "--quiet-dhcp"
865 append_bool "$cfg" sequential_ip "--dhcp-sequential-ip"
866 append_bool "$cfg" allservers "--all-servers"
867 append_bool "$cfg" noping "--no-ping"
868 append_bool "$cfg" rapidcommit "--dhcp-rapid-commit"
869 append_bool "$cfg" scriptarp "--script-arp"
871 append_parm "$cfg" logfacility "--log-facility"
873 append_parm "$cfg" cachesize "--cache-size"
874 append_parm "$cfg" dnsforwardmax "--dns-forward-max"
875 append_parm "$cfg" port "--port"
876 append_parm "$cfg" ednspacket_max "--edns-packet-max"
877 append_parm "$cfg" dhcpleasemax "--dhcp-lease-max"
878 append_parm "$cfg" "queryport" "--query-port"
879 append_parm "$cfg" "minport" "--min-port"
880 append_parm "$cfg" "maxport" "--max-port"
881 append_parm "$cfg" "domain" "--domain"
882 append_parm "$cfg" "local" "--server"
883 config_list_foreach "$cfg" "listen_address" append_listenaddress
884 config_list_foreach "$cfg" "server" append_server
885 config_list_foreach "$cfg" "rev_server" append_rev_server
886 config_list_foreach "$cfg" "address" append_address
887 config_list_foreach "$cfg" "ipset" append_ipset
889 config_list_foreach "$cfg" "interface" append_interface
890 config_list_foreach "$cfg" "notinterface" append_notinterface
892 config_list_foreach "$cfg" "addnhosts" append_addnhosts
893 config_list_foreach "$cfg" "bogusnxdomain" append_bogusnxdomain
894 append_parm "$cfg" "leasefile" "--dhcp-leasefile" "/tmp/dhcp.leases"
895 append_parm "$cfg" "serversfile" "--servers-file"
896 append_parm "$cfg" "tftp_root" "--tftp-root"
897 append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
898 append_parm "$cfg" "local_ttl" "--local-ttl"
899 append_parm "$cfg" "max_ttl" "--max-ttl"
900 append_parm "$cfg" "min_cache_ttl" "--min-cache-ttl"
901 append_parm "$cfg" "max_cache_ttl" "--max-cache-ttl"
902 append_parm "$cfg" "pxe_prompt" "--pxe-prompt"
903 config_list_foreach "$cfg" "pxe_service" append_pxe_service
904 config_get DOMAIN "$cfg" domain
906 config_get_bool ADD_LOCAL_DOMAIN "$cfg" add_local_domain 1
907 config_get_bool ADD_LOCAL_HOSTNAME "$cfg" add_local_hostname 1
908 config_get ADD_LOCAL_FQDN "$cfg" add_local_fqdn ""
909 config_get ADD_WAN_FQDN "$cfg" add_wan_fqdn 0
911 if [ -z "$ADD_LOCAL_FQDN" ] ; then
912 # maintain support for previous UCI
913 ADD_LOCAL_FQDN="$ADD_LOCAL_HOSTNAME"
916 config_get user_dhcpscript $cfg dhcpscript
917 if has_handler || [ -n "$user_dhcpscript" ]; then
918 xappend "--dhcp-script=$DHCPSCRIPT"
919 xappend "--script-arp"
922 config_get leasefile $cfg leasefile "/tmp/dhcp.leases"
923 [ -n "$leasefile" ] && [ ! -e "$leasefile" ] && touch "$leasefile"
924 config_get_bool cachelocal "$cfg" cachelocal 1
926 config_get_bool noresolv "$cfg" noresolv 0
927 if [ "$noresolv" != "1" ]; then
928 config_get resolvfile "$cfg" resolvfile /tmp/resolv.conf.d/resolv.conf.auto
929 [ -n "$resolvfile" ] && [ ! -e "$resolvfile" ] && touch "$resolvfile"
930 xappend "--resolv-file=$resolvfile"
931 [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse=1
932 resolvdir="$(dirname "$resolvfile")"
934 config_get_bool localuse "$cfg" localuse "$localuse"
936 config_get hostsfile "$cfg" dhcphostsfile
937 [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
940 config_get_bool rebind "$cfg" rebind_protection 1
941 [ $rebind -gt 0 ] && {
943 "DNS rebinding protection is active," \
944 "will discard upstream RFC1918 responses!"
945 xappend "--stop-dns-rebind"
947 local rebind_localhost
948 config_get_bool rebind_localhost "$cfg" rebind_localhost 0
949 [ $rebind_localhost -gt 0 ] && {
950 log_once "Allowing 127.0.0.0/8 responses"
951 xappend "--rebind-localhost-ok"
954 append_rebind_domain() {
955 log_once "Allowing RFC1918 responses for domain $1"
956 xappend "--rebind-domain-ok=$1"
959 config_list_foreach "$cfg" rebind_domain append_rebind_domain
962 config_get_bool dnssec "$cfg" dnssec 0
963 [ "$dnssec" -gt 0 ] && {
964 xappend "--conf-file=$TRUSTANCHORSFILE"
966 [ -x /etc/init.d/sysntpd ] && {
967 if /etc/init.d/sysntpd enabled || [ "$(uci_get system.ntp.enabled)" = "1" ] ; then
968 [ -f "$TIMEVALIDFILE" ] || xappend "--dnssec-no-timecheck"
971 config_get_bool dnsseccheckunsigned "$cfg" dnsseccheckunsigned 1
972 [ "$dnsseccheckunsigned" -eq 0 ] && xappend "--dnssec-check-unsigned=no"
975 config_get addmac "$cfg" addmac 0
976 [ "$addmac" != "0" ] && {
977 [ "$addmac" = "1" ] && addmac=
978 xappend "--add-mac${addmac:+="$addmac"}"
981 dhcp_option_add "$cfg" "" 0
982 dhcp_option_add "$cfg" "" 2
984 xappend "--dhcp-broadcast=tag:needs-broadcast"
986 xappend "--addn-hosts=$(dirname $HOSTFILE)"
988 config_get dnsmasqconfdir "$cfg" confdir "/tmp/dnsmasq.d"
989 xappend "--conf-dir=$dnsmasqconfdir"
990 dnsmasqconfdir="${dnsmasqconfdir%%,*}"
991 [ ! -d "$dnsmasqconfdir" ] && mkdir -p $dnsmasqconfdir
992 xappend "--user=dnsmasq"
993 xappend "--group=dnsmasq"
994 echo >> $CONFIGFILE_TMP
996 config_get_bool enable_tftp "$cfg" enable_tftp 0
997 [ "$enable_tftp" -gt 0 ] && {
998 config_get tftp_root "$cfg" tftp_root
999 append EXTRA_MOUNT $tftp_root
1002 config_foreach filter_dnsmasq host dhcp_host_add "$cfg"
1003 echo >> $CONFIGFILE_TMP
1005 config_get_bool dhcpbogushostname "$cfg" dhcpbogushostname 1
1006 [ "$dhcpbogushostname" -gt 0 ] && {
1007 xappend "--dhcp-ignore-names=tag:dhcp_bogus_hostname"
1008 [ -r "$DHCPBOGUSHOSTNAMEFILE" ] && xappend "--conf-file=$DHCPBOGUSHOSTNAMEFILE"
1011 config_foreach filter_dnsmasq boot dhcp_boot_add "$cfg"
1012 config_foreach filter_dnsmasq mac dhcp_mac_add "$cfg"
1013 config_foreach filter_dnsmasq tag dhcp_tag_add "$cfg"
1014 config_foreach filter_dnsmasq vendorclass dhcp_vendorclass_add "$cfg"
1015 config_foreach filter_dnsmasq userclass dhcp_userclass_add "$cfg"
1016 config_foreach filter_dnsmasq circuitid dhcp_circuitid_add "$cfg"
1017 config_foreach filter_dnsmasq remoteid dhcp_remoteid_add "$cfg"
1018 config_foreach filter_dnsmasq subscrid dhcp_subscrid_add "$cfg"
1019 config_foreach filter_dnsmasq match dhcp_match_add "$cfg"
1020 config_foreach filter_dnsmasq domain dhcp_domain_add "$cfg"
1021 config_foreach filter_dnsmasq hostrecord dhcp_hostrecord_add "$cfg"
1022 [ -n "$BOOT" ] || config_foreach filter_dnsmasq relay dhcp_relay_add "$cfg"
1024 echo >> $CONFIGFILE_TMP
1025 config_foreach filter_dnsmasq srvhost dhcp_srv_add "$cfg"
1026 config_foreach filter_dnsmasq mxhost dhcp_mx_add "$cfg"
1027 echo >> $CONFIGFILE_TMP
1029 config_get_bool boguspriv "$cfg" boguspriv 1
1030 [ "$boguspriv" -gt 0 ] && {
1031 xappend "--bogus-priv"
1032 [ -r "$RFC6761FILE" ] && xappend "--conf-file=$RFC6761FILE"
1035 if [ "$DNSMASQ_DHCP_VER" -gt 4 ] ; then
1036 # Enable RA feature for when/if it is constructed,
1037 # and RA is selected per interface pool (RA, DHCP, or both),
1038 # but no one (should) want RA broadcast in syslog
1039 [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
1040 xappend "--enable-ra"
1041 xappend "--quiet-ra"
1042 append_bool "$cfg" quietdhcp "--quiet-dhcp6"
1044 elif [ "$DNSMASQ_DHCP_VER" -gt 0 ] ; then
1045 [ -n "$BOOT" ] || config_foreach filter_dnsmasq dhcp dhcp_add "$cfg"
1049 echo >> $CONFIGFILE_TMP
1050 config_foreach filter_dnsmasq cname dhcp_cname_add "$cfg"
1051 echo >> $CONFIGFILE_TMP
1053 echo >> $CONFIGFILE_TMP
1054 mv -f $CONFIGFILE_TMP $CONFIGFILE
1055 mv -f $HOSTFILE_TMP $HOSTFILE
1057 [ "$localuse" -gt 0 ] && {
1058 rm -f /tmp/resolv.conf
1059 [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
1060 echo "search $DOMAIN" >> /tmp/resolv.conf
1062 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
1063 for DNS_SERVER in $DNS_SERVERS ; do
1064 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
1068 procd_open_instance $cfg
1069 procd_set_param command $PROG -C $CONFIGFILE -k -x /var/run/dnsmasq/dnsmasq."${cfg}".pid
1070 procd_set_param file $CONFIGFILE
1071 [ -n "$user_dhcpscript" ] && procd_set_param env USER_DHCPSCRIPT="$user_dhcpscript"
1072 procd_set_param respawn
1074 procd_add_jail dnsmasq ubus log
1075 procd_add_jail_mount $CONFIGFILE $TRUSTANCHORSFILE $HOSTFILE $RFC6761FILE $DHCPBOGUSHOSTNAMEFILE /etc/passwd /etc/group /etc/TZ /dev/null /dev/urandom $dnsmasqconffile $dnsmasqconfdir $resolvdir $user_dhcpscript /etc/hosts /etc/ethers /sbin/hotplug-call $EXTRA_MOUNT $DHCPSCRIPT
1076 procd_add_jail_mount_rw /var/run/dnsmasq/ $leasefile
1078 procd_close_instance
1084 local noresolv resolvfile localuse=0
1086 config_get_bool noresolv "$cfg" noresolv 0
1087 config_get resolvfile "$cfg" "resolvfile"
1089 [ "$noresolv" = 0 ] && [ "$resolvfile" = "/tmp/resolv.conf.d/resolv.conf.auto" ] && localuse=1
1090 config_get_bool localuse "$cfg" localuse "$localuse"
1091 [ "$localuse" -gt 0 ] && ln -sf "/tmp/resolv.conf.d/resolv.conf.auto" /tmp/resolv.conf
1093 rm -f ${BASEDHCPSTAMPFILE}.${cfg}.*.dhcp
1096 add_interface_trigger()
1098 local interface ignore
1100 config_get interface "$1" interface
1101 config_get_bool ignore "$1" ignore 0
1103 [ -n "$interface" ] && [ $ignore -eq 0 ] && procd_add_interface_trigger "interface.*" "$interface" /etc/init.d/dnsmasq reload
1108 procd_add_reload_trigger "dhcp" "system"
1111 config_foreach add_interface_trigger dhcp
1112 config_foreach add_interface_trigger relay
1123 local instance_found=0
1125 . /lib/functions/network.sh
1130 if [ "$type" = "dnsmasq" ]; then
1131 if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
1139 if [ -n "$instance" ]; then
1140 [ "$instance_found" -gt 0 ] || return
1141 dnsmasq_start "$instance"
1143 config_foreach dnsmasq_start dnsmasq
1148 rc_procd start_service "$@"
1149 procd_send_signal dnsmasq "$@"
1154 local instance_found=0
1159 if [ "$type" = "dnsmasq" ]; then
1160 if [ -n "$instance" ] && [ "$instance" = "$name" ]; then
1168 if [ -n "$instance" ]; then
1169 [ "$instance_found" -gt 0 ] || return
1170 dnsmasq_stop "$instance"
1172 config_foreach dnsmasq_stop dnsmasq