1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007 OpenWrt.org
11 while [ -n "$ip" ]; do
14 res="$(($res + $part))"
15 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
25 config_get_bool _tmp "$section" "$option"
26 [ "$_tmp" -gt 0 ] && append args "$3"
31 append_bool "$cfg" authoritative "-K"
32 append_bool "$cfg" nodaemon "-d"
33 append_bool "$cfg" domainneeded "-D"
34 append_bool "$cfg" filterwin2k "-f"
35 append_bool "$cfg" nohosts "-h"
36 append_bool "$cfg" nonegcache "-N"
37 append_bool "$cfg" strictorder "-o"
38 append_bool "$cfg" logqueries "-q"
39 append_bool "$cfg" noresolv "-R"
40 append_bool "$cfg" localise_queries "-y"
41 append_bool "$cfg" readethers "-Z"
42 append_bool "$cfg" dbus "-l"
44 config_get dnsforwardmax "$cfg" dnsforwardmax
45 dnsforwardmax="${dnsforwardmax:-150}"
46 append args "-0 $dnsforwardmax"
48 config_get port "$cfg" port
50 append args "-p $port"
52 config_get ednspacket_max "$cfg" ednspacket_max
53 ednspacket_max="${ednspacket_max:-1280}"
54 append args "-P $ednspacket_max"
56 config_get dhcpleasemax "$cfg" dhcpleasemax
57 dhcpleasemax="${dhcpleasemax:-150}"
58 append args "-X $dhcpleasemax"
60 config_get addnhosts "$cfg" addnhosts
61 config_get interface "$cfg" interface
62 config_get exceptinterface "$cfg" exceptinterface
63 config_get queryport "$cfg" queryport
64 config_get domain "$cfg" domain
70 config_get name "$cfg" name
71 [ -n "$name" ] || return 0
73 config_get subscriberid "$cfg" subscriberid
74 [ -n "$subscriberid" ] || return 0
76 append args "--dhcp-subscrid=$name,$subscriberid"
78 dhcp_option_add "$cfg" "$name"
84 config_get name "$cfg" name
85 [ -n "$name" ] || return 0
87 config_get remoteid "$cfg" remoteid
88 [ -n "$remoteid" ] || return 0
90 append args "--dhcp-remoteid=$name,$remoteid"
92 dhcp_option_add "$cfg" "$name"
95 dhcp_circuitid_add() {
98 config_get name "$cfg" name
99 [ -n "$name" ] || return 0
101 config_get circuitid "$cfg" circuitid
102 [ -n "$circuitid" ] || return 0
104 append args "--dhcp-circuitid=$name,$circuitid"
106 dhcp_option_add "$cfg" "$name"
109 dhcp_userclass_add() {
112 config_get name "$cfg" name
113 [ -n "$name" ] || return 0
115 config_get userclass "$cfg" userclass
116 [ -n "$userclass" ] || return 0
118 append args "--dhcp-userclass=$name,$userclass"
120 dhcp_option_add "$cfg" "$name"
123 dhcp_vendorclass_add() {
126 config_get name "$cfg" name
127 [ -n "$name" ] || return 0
129 config_get vendorclass "$cfg" vendorclass
130 [ -n "$vendorclass" ] || return 0
132 append args "--dhcp-vendorclass=$name,$vendorclass"
134 dhcp_option_add "$cfg" "$name"
140 config_get name "$cfg" name
141 [ -n "$name" ] || return 0
143 config_get mac "$cfg" mac
144 [ -n "$mac" ] || return 0
147 append args "--dhcp-host=$mac,$ip"
149 dhcp_option_add "$cfg" "$name"
155 config_get name "$cfg" name
156 [ -n "$name" ] || return 0
158 config_get mac "$cfg" mac
159 [ -n "$mac" ] || return 0
161 append args "--dhcp-mac=$name,$mac"
163 dhcp_option_add "$cfg" "$name"
168 config_get net "$cfg" interface
169 [ -n "$net" ] || return 0
171 config_get name "$cfg" name
172 [ -n "$name" ] || name="$net"
174 config_get ifname "$net" ifname
175 [ -n "$ifname" ] || return 0
177 config_get dnsserver "$net" dns
178 [ -n "$dnsserver" ] && {
179 DNS_SERVERS="$DNS_SERVERS $dnsserver"
182 append_bool "$cfg" ignore "-I $ifname"
184 config_get proto "$net" proto
185 [ static = "$proto" ] || return 0
187 config_get ipaddr "$net" ipaddr
188 config_get netmask "$net" netmask
190 #check for an already active dhcp server on the interface, unless 'force' is set
191 config_get_bool force "$cfg" force 0
192 [ "$force" -gt 0 ] || {
193 udhcpc -n -q -R -s /bin/true -t 1 -i $ifname >&- && return 0
196 config_get start "$cfg" start
197 config_get limit "$cfg" limit
198 config_get leasetime "$cfg" leasetime
199 config_get options "$cfg" options
201 leasetime="${leasetime:-12h}"
202 start="$(dhcp_calc "${start:-100}")"
203 limit="$((${limit:-150} + 1))"
204 eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
205 append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
207 dhcp_option_add "$cfg" "$name"
214 for count in $(seq 0 100); do
215 eval current_value=\$CONFIG_"$cfg"_dhcp"$count"
216 if [ -z "$current_value" ]; then
220 append args "-O $name","$current_value"
231 config_foreach dnsmasq dnsmasq
232 config_foreach dhcp_host_add host
233 config_foreach dhcp_mac_add mac
234 config_foreach dhcp_vendorclass_add vendorclass
235 config_foreach dhcp_userclass_add userclass
236 config_foreach dhcp_circuitid_add circuitid
237 config_foreach dhcp_remoteid_add remoteid
238 config_foreach dhcp_subscrid_add subscrid
239 config_foreach dhcp_add dhcp
241 /usr/sbin/dnsmasq $args && {
242 rm -f /tmp/resolv.conf
243 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
244 for DNS_SERVER in $DNS_SERVERS ; do
245 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf