1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007-2012 OpenWrt.org
15 CONFIGFILE="/var/etc/dnsmasq.conf"
20 echo "${value#--}" >> $CONFIGFILE
27 while [ -n "$ip" ]; do
30 res="$(($res + $part))"
31 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
41 config_get_bool _loctmp "$section" "$option" 0
42 [ $_loctmp -gt 0 ] && xappend "$value"
50 config_get _loctmp "$section" "$option"
51 [ -z "$_loctmp" ] && return 0
52 xappend "$switch=$_loctmp"
60 xappend "--address=$1"
64 local ifname=$(uci_get_state network "$1" ifname "$1")
65 xappend "--interface=$ifname"
68 append_notinterface() {
69 local ifname=$(uci_get_state network "$1" ifname "$1")
70 xappend "--except-interface=$ifname"
74 xappend "--addn-hosts=$1"
77 append_bogusnxdomain() {
78 xappend "--bogus-nxdomain=$1"
83 append_bool "$cfg" authoritative "--dhcp-authoritative"
84 append_bool "$cfg" nodaemon "--no-daemon"
85 append_bool "$cfg" domainneeded "--domain-needed"
86 append_bool "$cfg" filterwin2k "--filterwin2k"
87 append_bool "$cfg" nohosts "--no-hosts"
88 append_bool "$cfg" nonegcache "--no-negcache"
89 append_bool "$cfg" strictorder "--strict-order"
90 append_bool "$cfg" logqueries "--log-queries"
91 append_bool "$cfg" noresolv "--no-resolv"
92 append_bool "$cfg" localise_queries "--localise-queries"
93 append_bool "$cfg" readethers "--read-ethers"
94 append_bool "$cfg" dbus "--enable-dbus"
95 append_bool "$cfg" boguspriv "--bogus-priv"
96 append_bool "$cfg" expandhosts "--expand-hosts"
97 append_bool "$cfg" enable_tftp "--enable-tftp"
98 append_bool "$cfg" nonwildcard "--bind-interfaces"
99 append_bool "$cfg" fqdn "--dhcp-fqdn"
100 append_bool "$cfg" proxydnssec "--proxy-dnssec"
102 append_parm "$cfg" dhcpscript "--dhcp-script"
103 append_parm "$cfg" cachesize "--cache-size"
104 append_parm "$cfg" dnsforwardmax "--dns-forward-max"
105 append_parm "$cfg" port "--port"
106 append_parm "$cfg" ednspacket_max "--edns-packet-max"
107 append_parm "$cfg" dhcpleasemax "--dhcp-lease-max"
108 append_parm "$cfg" "queryport" "--query-port"
109 append_parm "$cfg" "domain" "--domain"
110 append_parm "$cfg" "local" "--server"
111 config_list_foreach "$cfg" "server" append_server
112 config_list_foreach "$cfg" "address" append_address
113 config_list_foreach "$cfg" "interface" append_interface
114 config_list_foreach "$cfg" "notinterface" append_notinterface
115 config_list_foreach "$cfg" "addnhosts" append_addnhosts
116 config_list_foreach "$cfg" "bogusnxdomain" append_bogusnxdomain
117 append_parm "$cfg" "leasefile" "--dhcp-leasefile"
118 append_parm "$cfg" "resolvfile" "--resolv-file"
119 append_parm "$cfg" "tftp_root" "--tftp-root"
120 append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
121 append_parm "$cfg" "local_ttl" "--local-ttl"
123 config_get DOMAIN "$cfg" domain
125 config_get_bool ADD_LOCAL_DOMAIN "$cfg" add_local_domain 1
126 config_get_bool ADD_LOCAL_HOSTNAME "$cfg" add_local_hostname 1
128 config_get_bool readethers "$cfg" readethers
129 [ "$readethers" = "1" -a \! -e "/etc/ethers" ] && touch /etc/ethers
131 config_get leasefile $cfg leasefile
132 [ -n "$leasefile" -a \! -e "$leasefile" ] && touch "$leasefile"
133 config_get_bool cachelocal "$cfg" cachelocal 1
135 config_get hostsfile "$cfg" dhcphostsfile
136 [ -e "$hostsfile" ] && xappend "--dhcp-hostsfile=$hostsfile"
139 xappend "--addn-hosts=/tmp/hosts"
142 config_get_bool rebind "$cfg" rebind_protection 1
143 [ $rebind -gt 0 ] && {
145 "DNS rebinding protection is active," \
146 "will discard upstream RFC1918 responses!"
147 xappend "--stop-dns-rebind"
149 local rebind_localhost
150 config_get_bool rebind_localhost "$cfg" rebind_localhost 0
151 [ $rebind_localhost -gt 0 ] && {
152 logger -t dnsmasq "Allowing 127.0.0.0/8 responses"
153 xappend "--rebind-localhost-ok"
156 append_rebind_domain() {
157 logger -t dnsmasq "Allowing RFC1918 responses for domain $1"
158 xappend "--rebind-domain-ok=$1"
161 config_list_foreach "$cfg" rebind_domain append_rebind_domain
164 dhcp_option_add "$cfg" "" 0
166 xappend "--dhcp-broadcast=tag:needs-broadcast"
171 dhcp_subscrid_add() {
174 config_get networkid "$cfg" networkid
175 [ -n "$networkid" ] || return 0
177 config_get subscriberid "$cfg" subscriberid
178 [ -n "$subscriberid" ] || return 0
180 xappend "--dhcp-subscrid=$networkid,$subscriberid"
182 config_get_bool force "$cfg" force 0
184 dhcp_option_add "$cfg" "$networkid" "$force"
187 dhcp_remoteid_add() {
190 config_get networkid "$cfg" networkid
191 [ -n "$networkid" ] || return 0
193 config_get remoteid "$cfg" remoteid
194 [ -n "$remoteid" ] || return 0
196 xappend "--dhcp-remoteid=$networkid,$remoteid"
198 config_get_bool force "$cfg" force 0
200 dhcp_option_add "$cfg" "$networkid" "$force"
203 dhcp_circuitid_add() {
206 config_get networkid "$cfg" networkid
207 [ -n "$networkid" ] || return 0
209 config_get circuitid "$cfg" circuitid
210 [ -n "$circuitid" ] || return 0
212 xappend "--dhcp-circuitid=$networkid,$circuitid"
214 config_get_bool force "$cfg" force 0
216 dhcp_option_add "$cfg" "$networkid" "$force"
219 dhcp_userclass_add() {
222 config_get networkid "$cfg" networkid
223 [ -n "$networkid" ] || return 0
225 config_get userclass "$cfg" userclass
226 [ -n "$userclass" ] || return 0
228 xappend "--dhcp-userclass=$networkid,$userclass"
230 config_get_bool force "$cfg" force 0
232 dhcp_option_add "$cfg" "$networkid" "$force"
235 dhcp_vendorclass_add() {
238 config_get networkid "$cfg" networkid
239 [ -n "$networkid" ] || return 0
241 config_get vendorclass "$cfg" vendorclass
242 [ -n "$vendorclass" ] || return 0
244 xappend "--dhcp-vendorclass=$networkid,$vendorclass"
246 config_get_bool force "$cfg" force 0
248 dhcp_option_add "$cfg" "$networkid" "$force"
254 config_get_bool force "$cfg" force 0
256 config_get networkid "$cfg" networkid
257 [ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid" "$force"
259 config_get name "$cfg" name
260 config_get ip "$cfg" ip
261 [ -n "$ip" -o -n "$name" ] || return 0
263 config_get mac "$cfg" mac
265 [ -n "$name" ] || return 0
271 for m in $mac; do append macs "$m" ","; done
273 config_get tag "$cfg" tag
275 config_get_bool broadcast "$cfg" broadcast 0
276 [ "$broadcast" = "0" ] && broadcast=
278 xappend "--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}"
286 [ -n "$tag" ] || return 0
288 config_get_bool force "$cfg" force 0
289 [ "$force" = "0" ] && force=
291 config_get option "$cfg" dhcp_option
293 xappend "--dhcp-option${force:+-force}=tag:$tag,$o"
300 config_get networkid "$cfg" networkid
301 [ -n "$networkid" ] || return 0
303 config_get mac "$cfg" mac
304 [ -n "$mac" ] || return 0
306 xappend "--dhcp-mac=$networkid,$mac"
308 dhcp_option_add "$cfg" "$networkid"
314 config_get networkid "$cfg" networkid
316 config_get filename "$cfg" filename
317 [ -n "$filename" ] || return 0
319 config_get servername "$cfg" servername
320 [ -n "$servername" ] || return 0
322 config_get serveraddress "$cfg" serveraddress
323 [ -n "$serveraddress" ] || return 0
325 xappend "--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
327 config_get_bool force "$cfg" force 0
329 dhcp_option_add "$cfg" "$networkid" "$force"
335 config_get net "$cfg" interface
336 [ -n "$net" ] || return 0
338 config_get networkid "$cfg" networkid
339 [ -n "$networkid" ] || networkid="$net"
341 network_get_subnet subnet "$net" || return 0
342 network_get_device ifname "$net" || return 0
343 network_get_protocol proto "$net" || return 0
345 [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver "$net" && {
346 DNS_SERVERS="$DNS_SERVERS $dnsserver"
349 append_bool "$cfg" ignore "--no-dhcp-interface=$ifname" && return 0
351 # Do not support non-static interfaces for now
352 [ static = "$proto" ] || return 0
354 # Override interface netmask with dhcp config if applicable
355 config_get netmask "$cfg" netmask "${subnet##*/}"
357 #check for an already active dhcp server on the interface, unless 'force' is set
358 config_get_bool force "$cfg" force 0
359 [ $force -gt 0 ] || {
360 udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && {
362 "found already running DHCP-server on interface '$ifname'" \
363 "refusing to start, use 'option force 1' to override"
368 config_get start "$cfg" start
369 config_get limit "$cfg" limit
370 config_get leasetime "$cfg" leasetime
371 config_get options "$cfg" options
372 config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
374 leasetime="${leasetime:-12h}"
375 start="$(dhcp_calc "${start:-100}")"
376 limit="${limit:-150}"
377 [ "$limit" -gt 0 ] && limit=$((limit-1))
378 eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
379 if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
380 xappend "--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
382 dhcp_option_add "$cfg" "$networkid"
390 [ "$force" = "0" ] && force=
392 config_get dhcp_option "$cfg" dhcp_option
393 for o in $dhcp_option; do
394 xappend "--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
401 local ip name names record
403 config_get names "$cfg" name "$2"
404 [ -n "$names" ] || return 0
406 config_get ip "$cfg" ip "$3"
407 [ -n "$ip" ] || return 0
409 for name in $names; do
410 [ "${name%.*}" == "$name" ] && \
411 name="$name${DOMAIN:+.$DOMAIN}"
413 record="${record:+$record/}$name"
416 xappend "--address=/$record/$ip"
422 config_get srv "$cfg" srv
423 [ -n "$srv" ] || return 0
425 config_get target "$cfg" target
426 [ -n "$target" ] || return 0
428 config_get port "$cfg" port
429 [ -n "$port" ] || return 0
431 config_get class "$cfg" class
432 config_get weight "$cfg" weight
434 local service="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
436 xappend "--srv-host=$service"
441 local domain relay pref
443 config_get domain "$cfg" domain
444 [ -n "$domain" ] || return 0
446 config_get relay "$cfg" relay
447 [ -n "$relay" ] || return 0
449 config_get pref "$cfg" pref 0
451 local service="$domain,$relay,$pref"
453 xappend "--mx-host=$service"
460 config_get cname "$cfg" cname
461 [ -n "$cname" ] || return 0
463 config_get target "$cfg" target
464 [ -n "$target" ] || return 0
466 xappend "--cname=${cname},${target}"
469 dhcp_hostrecord_add() {
471 local names addresses record val
473 config_get names "$cfg" name "$2"
474 if [ -z "$names" ]; then
478 config_get addresses "$cfg" ip "$3"
479 if [ -z "$addresses" ]; then
483 for val in $names $addresses; do
484 record="${record:+$record,}$val"
487 xappend "--host-record=$record"
492 procd_add_reload_trigger "dhcp"
496 include /lib/functions
501 procd_set_param command $PROG -C $CONFIGFILE -k
504 # before we can call xappend
505 mkdir -p $(dirname $CONFIGFILE)
507 echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE
509 # if we did this last, we could override auto-generated config
510 [ -f /etc/dnsmasq.conf ] && {
511 xappend "--conf-file=/etc/dnsmasq.conf"
515 config_foreach dnsmasq dnsmasq
516 config_foreach dhcp_host_add host
518 config_foreach dhcp_boot_add boot
519 config_foreach dhcp_mac_add mac
520 config_foreach dhcp_tag_add tag
521 config_foreach dhcp_vendorclass_add vendorclass
522 config_foreach dhcp_userclass_add userclass
523 config_foreach dhcp_circuitid_add circuitid
524 config_foreach dhcp_remoteid_add remoteid
525 config_foreach dhcp_subscrid_add subscrid
526 config_foreach dhcp_domain_add domain
527 config_foreach dhcp_hostrecord_add hostrecord
531 [ $ADD_LOCAL_HOSTNAME -eq 1 ] && network_get_ipaddr lanaddr "lan" && {
532 local hostname="$(uci_get system @system[0] hostname OpenWrt)"
533 dhcp_hostrecord_add "" "${hostname%.$DOMAIN}${DOMAIN:+.$DOMAIN ${hostname%.$DOMAIN}}" "$lanaddr"
537 config_foreach dhcp_srv_add srvhost
538 config_foreach dhcp_mx_add mxhost
540 config_foreach dhcp_add dhcp
542 config_foreach dhcp_cname_add cname
545 rm -f /tmp/resolv.conf
546 [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
547 echo "search $DOMAIN" >> /tmp/resolv.conf
549 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
550 for DNS_SERVER in $DNS_SERVERS ; do
551 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
556 [ -f /tmp/resolv.conf ] && {
557 rm -f /tmp/resolv.conf
558 ln -s /tmp/resolv.conf.auto /tmp/resolv.conf