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
=
38 local stamp
="/var/run/dnsmasq.$ifname.dhcp"
41 [ -s "$stamp" ] && return $
(cat "$stamp")
43 udhcpc
-n -q -s /bin
/true
-t 1 -i "$ifname" >&- && rv
=1 || rv
=0
47 "found already running DHCP-server on interface '$ifname'" \
48 "refusing to start, use 'option force 1' to override"
55 pidof dnsmasq
>/dev
/null || \
56 logger
-t dnsmasq
"$@"
64 config_get_bool _loctmp
"$section" "$option" 0
65 [ $_loctmp -gt 0 ] && xappend
"$value"
73 config_get _loctmp
"$section" "$option"
74 [ -z "$_loctmp" ] && return 0
75 xappend
"$switch=$_loctmp"
83 xappend
"--address=$1"
87 local ifname
=$
(uci_get_state network
"$1" ifname
"$1")
88 xappend
"--interface=$ifname"
91 append_notinterface
() {
92 local ifname
=$
(uci_get_state network
"$1" ifname
"$1")
93 xappend
"--except-interface=$ifname"
97 xappend
"--addn-hosts=$1"
100 append_bogusnxdomain
() {
101 xappend
"--bogus-nxdomain=$1"
106 append_bool
"$cfg" authoritative
"--dhcp-authoritative"
107 append_bool
"$cfg" nodaemon
"--no-daemon"
108 append_bool
"$cfg" domainneeded
"--domain-needed"
109 append_bool
"$cfg" filterwin2k
"--filterwin2k"
110 append_bool
"$cfg" nohosts
"--no-hosts"
111 append_bool
"$cfg" nonegcache
"--no-negcache"
112 append_bool
"$cfg" strictorder
"--strict-order"
113 append_bool
"$cfg" logqueries
"--log-queries"
114 append_bool
"$cfg" noresolv
"--no-resolv"
115 append_bool
"$cfg" localise_queries
"--localise-queries"
116 append_bool
"$cfg" readethers
"--read-ethers"
117 append_bool
"$cfg" dbus
"--enable-dbus"
118 append_bool
"$cfg" boguspriv
"--bogus-priv"
119 append_bool
"$cfg" expandhosts
"--expand-hosts"
120 append_bool
"$cfg" enable_tftp
"--enable-tftp"
121 append_bool
"$cfg" nonwildcard
"--bind-interfaces"
122 append_bool
"$cfg" fqdn
"--dhcp-fqdn"
123 append_bool
"$cfg" proxydnssec
"--proxy-dnssec"
125 append_parm
"$cfg" dhcpscript
"--dhcp-script"
126 append_parm
"$cfg" cachesize
"--cache-size"
127 append_parm
"$cfg" dnsforwardmax
"--dns-forward-max"
128 append_parm
"$cfg" port
"--port"
129 append_parm
"$cfg" ednspacket_max
"--edns-packet-max"
130 append_parm
"$cfg" dhcpleasemax
"--dhcp-lease-max"
131 append_parm
"$cfg" "queryport" "--query-port"
132 append_parm
"$cfg" "domain" "--domain"
133 append_parm
"$cfg" "local" "--server"
134 config_list_foreach
"$cfg" "server" append_server
135 config_list_foreach
"$cfg" "address" append_address
136 config_list_foreach
"$cfg" "interface" append_interface
137 config_list_foreach
"$cfg" "notinterface" append_notinterface
138 config_list_foreach
"$cfg" "addnhosts" append_addnhosts
139 config_list_foreach
"$cfg" "bogusnxdomain" append_bogusnxdomain
140 append_parm
"$cfg" "leasefile" "--dhcp-leasefile"
141 append_parm
"$cfg" "resolvfile" "--resolv-file"
142 append_parm
"$cfg" "tftp_root" "--tftp-root"
143 append_parm
"$cfg" "dhcp_boot" "--dhcp-boot"
144 append_parm
"$cfg" "local_ttl" "--local-ttl"
146 config_get DOMAIN
"$cfg" domain
148 config_get_bool ADD_LOCAL_DOMAIN
"$cfg" add_local_domain
1
149 config_get_bool ADD_LOCAL_HOSTNAME
"$cfg" add_local_hostname
1
151 config_get_bool readethers
"$cfg" readethers
152 [ "$readethers" = "1" -a \
! -e "/etc/ethers" ] && touch /etc
/ethers
154 config_get leasefile
$cfg leasefile
155 [ -n "$leasefile" -a \
! -e "$leasefile" ] && touch "$leasefile"
156 config_get_bool cachelocal
"$cfg" cachelocal
1
158 config_get hostsfile
"$cfg" dhcphostsfile
159 [ -e "$hostsfile" ] && xappend
"--dhcp-hostsfile=$hostsfile"
162 xappend
"--addn-hosts=/tmp/hosts"
165 config_get_bool rebind
"$cfg" rebind_protection
1
166 [ $rebind -gt 0 ] && {
168 "DNS rebinding protection is active," \
169 "will discard upstream RFC1918 responses!"
170 xappend
"--stop-dns-rebind"
172 local rebind_localhost
173 config_get_bool rebind_localhost
"$cfg" rebind_localhost
0
174 [ $rebind_localhost -gt 0 ] && {
175 log_once
"Allowing 127.0.0.0/8 responses"
176 xappend
"--rebind-localhost-ok"
179 append_rebind_domain
() {
180 log_once
"Allowing RFC1918 responses for domain $1"
181 xappend
"--rebind-domain-ok=$1"
184 config_list_foreach
"$cfg" rebind_domain append_rebind_domain
187 dhcp_option_add
"$cfg" "" 0
189 xappend
"--dhcp-broadcast=tag:needs-broadcast"
194 dhcp_subscrid_add
() {
197 config_get networkid
"$cfg" networkid
198 [ -n "$networkid" ] ||
return 0
200 config_get subscriberid
"$cfg" subscriberid
201 [ -n "$subscriberid" ] ||
return 0
203 xappend
"--dhcp-subscrid=$networkid,$subscriberid"
205 config_get_bool force
"$cfg" force
0
207 dhcp_option_add
"$cfg" "$networkid" "$force"
210 dhcp_remoteid_add
() {
213 config_get networkid
"$cfg" networkid
214 [ -n "$networkid" ] ||
return 0
216 config_get remoteid
"$cfg" remoteid
217 [ -n "$remoteid" ] ||
return 0
219 xappend
"--dhcp-remoteid=$networkid,$remoteid"
221 config_get_bool force
"$cfg" force
0
223 dhcp_option_add
"$cfg" "$networkid" "$force"
226 dhcp_circuitid_add
() {
229 config_get networkid
"$cfg" networkid
230 [ -n "$networkid" ] ||
return 0
232 config_get circuitid
"$cfg" circuitid
233 [ -n "$circuitid" ] ||
return 0
235 xappend
"--dhcp-circuitid=$networkid,$circuitid"
237 config_get_bool force
"$cfg" force
0
239 dhcp_option_add
"$cfg" "$networkid" "$force"
242 dhcp_userclass_add
() {
245 config_get networkid
"$cfg" networkid
246 [ -n "$networkid" ] ||
return 0
248 config_get userclass
"$cfg" userclass
249 [ -n "$userclass" ] ||
return 0
251 xappend
"--dhcp-userclass=$networkid,$userclass"
253 config_get_bool force
"$cfg" force
0
255 dhcp_option_add
"$cfg" "$networkid" "$force"
258 dhcp_vendorclass_add
() {
261 config_get networkid
"$cfg" networkid
262 [ -n "$networkid" ] ||
return 0
264 config_get vendorclass
"$cfg" vendorclass
265 [ -n "$vendorclass" ] ||
return 0
267 xappend
"--dhcp-vendorclass=$networkid,$vendorclass"
269 config_get_bool force
"$cfg" force
0
271 dhcp_option_add
"$cfg" "$networkid" "$force"
277 config_get_bool force
"$cfg" force
0
279 config_get networkid
"$cfg" networkid
280 [ -n "$networkid" ] && dhcp_option_add
"$cfg" "$networkid" "$force"
282 config_get name
"$cfg" name
283 config_get ip
"$cfg" ip
284 [ -n "$ip" -o -n "$name" ] ||
return 0
286 config_get mac
"$cfg" mac
288 [ -n "$name" ] ||
return 0
294 for m
in $mac; do append macs
"$m" ","; done
296 config_get tag
"$cfg" tag
298 config_get_bool broadcast
"$cfg" broadcast
0
299 [ "$broadcast" = "0" ] && broadcast
=
301 xappend
"--dhcp-host=$macs${networkid:+,net:$networkid}${broadcast:+,set:needs-broadcast}${tag:+,set:$tag}${ip:+,$ip}${name:+,$name}"
309 [ -n "$tag" ] ||
return 0
311 config_get_bool force
"$cfg" force
0
312 [ "$force" = "0" ] && force
=
314 config_get option
"$cfg" dhcp_option
316 xappend
"--dhcp-option${force:+-force}=tag:$tag,$o"
323 config_get networkid
"$cfg" networkid
324 [ -n "$networkid" ] ||
return 0
326 config_get mac
"$cfg" mac
327 [ -n "$mac" ] ||
return 0
329 xappend
"--dhcp-mac=$networkid,$mac"
331 dhcp_option_add
"$cfg" "$networkid"
337 config_get networkid
"$cfg" networkid
339 config_get filename
"$cfg" filename
340 [ -n "$filename" ] ||
return 0
342 config_get servername
"$cfg" servername
343 [ -n "$servername" ] ||
return 0
345 config_get serveraddress
"$cfg" serveraddress
346 [ -n "$serveraddress" ] ||
return 0
348 xappend
"--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
350 config_get_bool force
"$cfg" force
0
352 dhcp_option_add
"$cfg" "$networkid" "$force"
358 config_get net
"$cfg" interface
359 [ -n "$net" ] ||
return 0
361 config_get networkid
"$cfg" networkid
362 [ -n "$networkid" ] || networkid
="$net"
364 network_get_subnet subnet
"$net" ||
return 0
365 network_get_device ifname
"$net" ||
return 0
366 network_get_protocol proto
"$net" ||
return 0
368 [ "$cachelocal" = "0" ] && network_get_dnsserver dnsserver
"$net" && {
369 DNS_SERVERS
="$DNS_SERVERS $dnsserver"
372 append_bool
"$cfg" ignore
"--no-dhcp-interface=$ifname" && return 0
374 # Do not support non-static interfaces for now
375 [ static
= "$proto" ] ||
return 0
377 # Override interface netmask with dhcp config if applicable
378 config_get netmask
"$cfg" netmask
"${subnet##*/}"
380 #check for an already active dhcp server on the interface, unless 'force' is set
381 config_get_bool force
"$cfg" force
0
382 [ $force -gt 0 ] || dhcp_check
"$ifname" ||
return 0
384 config_get start
"$cfg" start
385 config_get limit
"$cfg" limit
386 config_get leasetime
"$cfg" leasetime
387 config_get options
"$cfg" options
388 config_get_bool dynamicdhcp
"$cfg" dynamicdhcp
1
390 leasetime
="${leasetime:-12h}"
391 start
="$(dhcp_calc "${start:-100}")"
392 limit
="${limit:-150}"
393 [ "$limit" -gt 0 ] && limit
=$
((limit-1
))
394 eval "$(ipcalc.sh "${subnet%%/*}" $netmask $start $limit)"
395 if [ "$dynamicdhcp" = "0" ]; then END
="static"; fi
396 xappend
"--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
398 dhcp_option_add
"$cfg" "$networkid"
406 [ "$force" = "0" ] && force
=
408 config_get dhcp_option
"$cfg" dhcp_option
409 for o
in $dhcp_option; do
410 xappend
"--dhcp-option${force:+-force}=${networkid:+$networkid,}$o"
417 local ip name names record
419 config_get names
"$cfg" name
"$2"
420 [ -n "$names" ] ||
return 0
422 config_get ip
"$cfg" ip
"$3"
423 [ -n "$ip" ] ||
return 0
425 for name
in $names; do
426 [ "${name%.*}" == "$name" ] && \
427 name
="$name${DOMAIN:+.$DOMAIN}"
429 record
="${record:+$record/}$name"
432 xappend
"--address=/$record/$ip"
438 config_get srv
"$cfg" srv
439 [ -n "$srv" ] ||
return 0
441 config_get target
"$cfg" target
442 [ -n "$target" ] ||
return 0
444 config_get port
"$cfg" port
445 [ -n "$port" ] ||
return 0
447 config_get class
"$cfg" class
448 config_get weight
"$cfg" weight
450 local service
="$srv,$target,$port${class:+,$class${weight:+,$weight}}"
452 xappend
"--srv-host=$service"
457 local domain relay pref
459 config_get domain
"$cfg" domain
460 [ -n "$domain" ] ||
return 0
462 config_get relay
"$cfg" relay
463 [ -n "$relay" ] ||
return 0
465 config_get pref
"$cfg" pref
0
467 local service
="$domain,$relay,$pref"
469 xappend
"--mx-host=$service"
476 config_get cname
"$cfg" cname
477 [ -n "$cname" ] ||
return 0
479 config_get target
"$cfg" target
480 [ -n "$target" ] ||
return 0
482 xappend
"--cname=${cname},${target}"
485 dhcp_hostrecord_add
() {
487 local names addresses record val
489 config_get names
"$cfg" name
"$2"
490 if [ -z "$names" ]; then
494 config_get addresses
"$cfg" ip
"$3"
495 if [ -z "$addresses" ]; then
499 for val
in $names $addresses; do
500 record
="${record:+$record,}$val"
503 xappend
"--host-record=$record"
508 procd_add_reload_trigger
"dhcp"
512 # Will be launched through hotplug
517 include
/lib
/functions
522 procd_set_param
command $PROG -C $CONFIGFILE -k
523 procd_set_param
file $CONFIGFILE
526 # before we can call xappend
527 mkdir
-p $
(dirname $CONFIGFILE)
529 echo "# auto-generated config file from /etc/config/dhcp" > $CONFIGFILE
531 # if we did this last, we could override auto-generated config
532 [ -f /etc
/dnsmasq.conf
] && {
533 xappend
"--conf-file=/etc/dnsmasq.conf"
537 config_foreach dnsmasq dnsmasq
538 config_foreach dhcp_host_add
host
540 config_foreach dhcp_boot_add boot
541 config_foreach dhcp_mac_add mac
542 config_foreach dhcp_tag_add tag
543 config_foreach dhcp_vendorclass_add vendorclass
544 config_foreach dhcp_userclass_add userclass
545 config_foreach dhcp_circuitid_add circuitid
546 config_foreach dhcp_remoteid_add remoteid
547 config_foreach dhcp_subscrid_add subscrid
548 config_foreach dhcp_domain_add domain
549 config_foreach dhcp_hostrecord_add hostrecord
553 [ $ADD_LOCAL_HOSTNAME -eq 1 ] && network_get_ipaddr lanaddr
"lan" && {
554 local hostname
="$(uci_get system @system[0] hostname OpenWrt)"
555 dhcp_hostrecord_add
"" "${hostname%.$DOMAIN}${DOMAIN:+.$DOMAIN ${hostname%.$DOMAIN}}" "$lanaddr"
559 config_foreach dhcp_srv_add srvhost
560 config_foreach dhcp_mx_add mxhost
562 config_foreach dhcp_add dhcp
564 config_foreach dhcp_cname_add cname
567 rm -f /tmp
/resolv.conf
568 [ $ADD_LOCAL_DOMAIN -eq 1 ] && [ -n "$DOMAIN" ] && {
569 echo "search $DOMAIN" >> /tmp
/resolv.conf
571 DNS_SERVERS
="$DNS_SERVERS 127.0.0.1"
572 for DNS_SERVER
in $DNS_SERVERS ; do
573 echo "nameserver $DNS_SERVER" >> /tmp
/resolv.conf
578 rc_procd start_service
"$@"
583 [ -f /tmp
/resolv.conf
] && {
584 rm -f /tmp
/resolv.conf
585 ln -s /tmp
/resolv.conf.auto
/tmp
/resolv.conf
587 rm -f /var
/run
/dnsmasq.
*.dhcp