1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007 OpenWrt.org
12 while [ -n "$ip" ]; do
15 res="$(($res + $part))"
16 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
26 config_get_bool _loctmp "$section" "$option" 0
27 [ $_loctmp -gt 0 ] && append args "$value"
35 config_get _loctmp "$section" "$option"
36 [ -z "$_loctmp" ] && return 0
37 append args "$switch $_loctmp"
45 local ifname=$(uci_get_state network "$1" ifname "$1")
46 append args "-i $ifname"
49 append_notinterface() {
50 local ifname=$(uci_get_state network "$1" ifname "$1")
51 append args "-I $ifname"
60 append_bool "$cfg" authoritative "-K"
61 append_bool "$cfg" nodaemon "-d"
62 append_bool "$cfg" domainneeded "-D"
63 append_bool "$cfg" filterwin2k "-f"
64 append_bool "$cfg" nohosts "-h"
65 append_bool "$cfg" nonegcache "-N"
66 append_bool "$cfg" strictorder "-o"
67 append_bool "$cfg" logqueries "-q"
68 append_bool "$cfg" noresolv "-R"
69 append_bool "$cfg" localise_queries "-y"
70 append_bool "$cfg" readethers "-Z"
71 append_bool "$cfg" dbus "-1"
72 append_bool "$cfg" boguspriv "-b"
73 append_bool "$cfg" expandhosts "-E"
74 append_bool "$cfg" enable_tftp "--enable-tftp"
75 append_bool "$cfg" nonwildcard "-z"
77 append_parm "$cfg" dnsforwardmax "-0"
78 append_parm "$cfg" port "-p"
79 append_parm "$cfg" ednspacket_max "-P"
80 append_parm "$cfg" dhcpleasemax "-X"
81 append_parm "$cfg" "queryport" "-Q"
82 append_parm "$cfg" "domain" "-s"
83 append_parm "$cfg" "local" "-S"
84 config_list_foreach "$cfg" "server" append_server
85 config_list_foreach "$cfg" "interface" append_interface
86 config_list_foreach "$cfg" "notinterface" append_notinterface
87 config_list_foreach "$cfg" "addnhosts" append_addnhosts
88 append_parm "$cfg" "leasefile" "-l"
89 append_parm "$cfg" "resolvfile" "-r"
90 append_parm "$cfg" "tftp_root" "--tftp-root"
91 append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
93 config_get DOMAIN "$cfg" domain
95 config_get_bool readethers "$cfg" readethers
96 [ "$readethers" = "1" ] && [ -e "/etc/ethers" ] || touch /etc/ethers
98 config_get leasefile $cfg leasefile
99 [ -e "$leasefile" ] || touch "$leasefile"
100 config_get_bool cachelocal "$cfg" cachelocal 1
102 config_get hostsfile "$cfg" dhcphostsfile
103 [ -e "$hostsfile" ] && append args "--dhcp-hostsfile=$hostsfile"
106 config_get_bool rebind "$cfg" rebind_protection 1
107 [ $rebind -gt 0 ] && {
109 "DNS rebinding protection is active," \
110 "will discard upstream RFC1918 responses!"
111 append args "--stop-dns-rebind"
113 local rebind_localhost
114 config_get_bool rebind_localhost "$cfg" rebind_localhost 0
115 [ $rebind_localhost -gt 0 ] && {
116 logger -t dnsmasq "Allowing 127.0.0.0/8 responses"
117 append args "--rebind-localhost-ok"
120 append_rebind_domain() {
121 logger -t dnsmasq "Allowing RFC1918 responses for domain $1"
122 append args "--rebind-domain-ok=$1"
125 config_list_foreach "$cfg" rebind_domain append_rebind_domain
129 dhcp_subscrid_add() {
132 config_get networkid "$cfg" networkid
133 [ -n "$networkid" ] || return 0
135 config_get subscriberid "$cfg" subscriberid
136 [ -n "$subscriberid" ] || return 0
138 append args "--dhcp-subscrid=$networkid,$subscriberid"
140 dhcp_option_add "$cfg" "$networkid"
143 dhcp_remoteid_add() {
146 config_get networkid "$cfg" networkid
147 [ -n "$networkid" ] || return 0
149 config_get remoteid "$cfg" remoteid
150 [ -n "$remoteid" ] || return 0
152 append args "--dhcp-remoteid=$networkid,$remoteid"
154 dhcp_option_add "$cfg" "$networkid"
157 dhcp_circuitid_add() {
160 config_get networkid "$cfg" networkid
161 [ -n "$networkid" ] || return 0
163 config_get circuitid "$cfg" circuitid
164 [ -n "$circuitid" ] || return 0
166 append args "--dhcp-circuitid=$networkid,$circuitid"
168 dhcp_option_add "$cfg" "$networkid"
171 dhcp_userclass_add() {
174 config_get networkid "$cfg" networkid
175 [ -n "$networkid" ] || return 0
177 config_get userclass "$cfg" userclass
178 [ -n "$userclass" ] || return 0
180 append args "--dhcp-userclass=$networkid,$userclass"
182 dhcp_option_add "$cfg" "$networkid"
185 dhcp_vendorclass_add() {
188 config_get networkid "$cfg" networkid
189 [ -n "$networkid" ] || return 0
191 config_get vendorclass "$cfg" vendorclass
192 [ -n "$vendorclass" ] || return 0
194 append args "--dhcp-vendorclass=$networkid,$vendorclass"
196 dhcp_option_add "$cfg" "$networkid"
202 config_get name "$cfg" name
204 config_get networkid "$cfg" networkid
205 [ -n "$networkid" ] && dhcp_option_add "$cfg" "$networkid"
207 config_get ip "$cfg" ip
208 [ -n "$ip" ] || return 0
211 config_get mac "$cfg" mac
212 for m in $mac; do append macs "$m" ","; done
213 [ -n "$macs" ] || return 0
215 append args "--dhcp-host=$macs,${networkid:+net:$networkid,}$ip${name:+,$name}"
221 config_get networkid "$cfg" networkid
222 [ -n "$networkid" ] || return 0
224 config_get mac "$cfg" mac
225 [ -n "$mac" ] || return 0
227 append args "--dhcp-mac=$networkid,$mac"
229 dhcp_option_add "$cfg" "$networkid"
235 config_get networkid "$cfg" networkid
237 config_get filename "$cfg" filename
238 [ -n "$filename" ] || return 0
240 config_get servername "$cfg" servername
241 [ -n "$servername" ] || return 0
243 config_get serveraddress "$cfg" serveraddress
244 [ -n "$serveraddress" ] || return 0
246 append args "--dhcp-boot=${networkid:+net:$networkid,}$filename,$servername,$serveraddress"
248 dhcp_option_add "$cfg" "$networkid"
254 config_get net "$cfg" interface
255 [ -n "$net" ] || return 0
257 config_get networkid "$cfg" networkid
258 [ -n "$networkid" ] || networkid="$net"
260 config_get ifname "$net" ifname
261 [ -n "$ifname" ] || return 0
263 config_get dnsserver "$net" dns
264 [ "$cachelocal" = "0" -a -n "$dnsserver" ] && {
265 DNS_SERVERS="$DNS_SERVERS $dnsserver"
268 append_bool "$cfg" ignore "-2 '$ifname'" && return 0
270 config_get proto "$net" proto
271 [ static = "$proto" ] || return 0
273 config_get ipaddr "$net" ipaddr
274 config_get netmask "$cfg" netmask
275 [ -n "$netmask" ] || config_get netmask "$net" netmask
277 #check for an already active dhcp server on the interface, unless 'force' is set
278 config_get_bool force "$cfg" force 0
279 [ $force -gt 0 ] || {
280 udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && return 0
283 config_get start "$cfg" start
284 config_get limit "$cfg" limit
285 config_get leasetime "$cfg" leasetime
286 config_get options "$cfg" options
287 config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
289 leasetime="${leasetime:-12h}"
290 start="$(dhcp_calc "${start:-100}")"
291 limit="${limit:-150}"
292 eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
293 if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
294 append args "--dhcp-range=$networkid,$START,$END,$NETMASK,$leasetime${options:+ $options}"
296 dhcp_option_add "$cfg" "$networkid"
303 config_get dhcp_option "$cfg" dhcp_option
304 for o in $dhcp_option; do
305 append args "-O $networkid","$o"
314 config_get names "$cfg" name
315 [ -n "$names" ] || return 0
317 config_get ip "$cfg" ip
318 [ -n "$ip" ] || return 0
320 local oIFS="$IFS"; IFS="."; set -- $ip; IFS="$oIFS"
321 local raddr="${4:+$4.$3.$2.$1.in-addr.arpa}"
323 for name in $names; do
326 [ "${fqdn%.*}" == "$fqdn" ] && \
327 fqdn="$fqdn${DOMAIN:+.$DOMAIN}"
329 append args "-A /$fqdn/$ip"
332 append args "--ptr-record=$raddr,$fqdn"
341 config_get srv "$cfg" srv
342 [ -n "$srv" ] || return 0
344 config_get target "$cfg" target
345 [ -n "$target" ] || return 0
347 config_get port "$cfg" port
349 local service="$srv,$target"
350 [ -n "$port" ] && service="$service,$port"
352 append args "-W $service"
361 config_foreach dnsmasq dnsmasq
362 config_foreach dhcp_host_add host
363 config_foreach dhcp_boot_add boot
364 config_foreach dhcp_mac_add mac
365 config_foreach dhcp_vendorclass_add vendorclass
366 config_foreach dhcp_userclass_add userclass
367 config_foreach dhcp_circuitid_add circuitid
368 config_foreach dhcp_remoteid_add remoteid
369 config_foreach dhcp_subscrid_add subscrid
370 config_foreach dhcp_domain_add domain
371 config_foreach dhcp_srv_add srvhost
372 config_foreach dhcp_add dhcp
374 /usr/sbin/dnsmasq $args && {
375 rm -f /tmp/resolv.conf
376 [ -n "$DOMAIN" ] && echo "search $DOMAIN" >> /tmp/resolv.conf
377 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
378 for DNS_SERVER in $DNS_SERVERS ; do
379 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
385 [ -f /tmp/resolv.conf ] && {
386 rm -f /tmp/resolv.conf
387 ln -s /tmp/resolv.conf.auto /tmp/resolv.conf