"-R" will not work as it needs the configured IP on the interface.
[openwrt/svn-archive/archive.git] / package / dnsmasq / files / dnsmasq.init
1 #!/bin/sh /etc/rc.common
2 # Copyright (C) 2007 OpenWrt.org
3
4 START=60
5 DNS_SERVERS=""
6
7 dhcp_calc() {
8 local ip="$1"
9 local res=0
10
11 while [ -n "$ip" ]; do
12 part="${ip%%.*}"
13 res="$(($res * 256))"
14 res="$(($res + $part))"
15 [ "${ip%.*}" != "$ip" ] && ip="${ip#*.}" || ip=
16 done
17 echo "$res"
18 }
19
20 append_bool() {
21 local section="$1"
22 local option="$2"
23 local value="$3"
24 local _loctmp
25 config_get_bool _loctmp "$section" "$option"
26 [ "$_loctmp" -gt 0 ] && append args "$value"
27 }
28
29 append_parm() {
30 local section="$1"
31 local option="$2"
32 local switch="$3"
33 local _loctmp
34 config_get _loctmp "$section" "$option"
35 [ -z "$_loctmp" ] && return 0
36 append args "$switch $_loctmp"
37 }
38
39 append_server() {
40 append args "-S $1"
41 }
42
43 dnsmasq() {
44 local cfg="$1"
45 append_bool "$cfg" authoritative "-K"
46 append_bool "$cfg" nodaemon "-d"
47 append_bool "$cfg" domainneeded "-D"
48 append_bool "$cfg" filterwin2k "-f"
49 append_bool "$cfg" nohosts "-h"
50 append_bool "$cfg" nonegcache "-N"
51 append_bool "$cfg" strictorder "-o"
52 append_bool "$cfg" logqueries "-q"
53 append_bool "$cfg" noresolv "-R"
54 append_bool "$cfg" localise_queries "-y"
55 append_bool "$cfg" readethers "-Z"
56 append_bool "$cfg" dbus "-1"
57 append_bool "$cfg" boguspriv "-b"
58 append_bool "$cfg" expandhosts "-E"
59 append_bool "$cfg" enable_tftp "--enable-tftp"
60
61 append_parm "$cfg" dnsforwardmax "-0"
62 append_parm "$cfg" port "-p"
63 append_parm "$cfg" ednspacket_max "-P"
64 append_parm "$cfg" dhcpleasemax "-X"
65 append_parm "$cfg" "addnhosts" "-H"
66 append_parm "$cfg" "queryport" "-Q"
67 append_parm "$cfg" "domain" "-s"
68 append_parm "$cfg" "local" "-S"
69 config_list_foreach "$cfg" "server" append_server
70 append_parm "$cfg" "leasefile" "-l"
71 append_parm "$cfg" "resolvfile" "-r"
72 append_parm "$cfg" "tftp_root" "--tftp-root"
73 append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
74
75 config_get leasefile $cfg leasefile
76 [ -e "$leasefile" ] || touch "$leasefile"
77 config_get_bool cachelocal "$cfg" cachelocal 1
78 }
79
80 dhcp_subscrid_add() {
81 local cfg="$1"
82
83 config_get name "$cfg" name
84 [ -n "$name" ] || return 0
85
86 config_get subscriberid "$cfg" subscriberid
87 [ -n "$subscriberid" ] || return 0
88
89 append args "--dhcp-subscrid=$name,$subscriberid"
90
91 dhcp_option_add "$cfg" "$name"
92 }
93
94 dhcp_remoteid_add() {
95 local cfg="$1"
96
97 config_get name "$cfg" name
98 [ -n "$name" ] || return 0
99
100 config_get remoteid "$cfg" remoteid
101 [ -n "$remoteid" ] || return 0
102
103 append args "--dhcp-remoteid=$name,$remoteid"
104
105 dhcp_option_add "$cfg" "$name"
106 }
107
108 dhcp_circuitid_add() {
109 local cfg="$1"
110
111 config_get name "$cfg" name
112 [ -n "$name" ] || return 0
113
114 config_get circuitid "$cfg" circuitid
115 [ -n "$circuitid" ] || return 0
116
117 append args "--dhcp-circuitid=$name,$circuitid"
118
119 dhcp_option_add "$cfg" "$name"
120 }
121
122 dhcp_userclass_add() {
123 local cfg="$1"
124
125 config_get name "$cfg" name
126 [ -n "$name" ] || return 0
127
128 config_get userclass "$cfg" userclass
129 [ -n "$userclass" ] || return 0
130
131 append args "--dhcp-userclass=$name,$userclass"
132
133 dhcp_option_add "$cfg" "$name"
134 }
135
136 dhcp_vendorclass_add() {
137 local cfg="$1"
138
139 config_get name "$cfg" name
140 [ -n "$name" ] || return 0
141
142 config_get vendorclass "$cfg" vendorclass
143 [ -n "$vendorclass" ] || return 0
144
145 append args "--dhcp-vendorclass=$name,$vendorclass"
146
147 dhcp_option_add "$cfg" "$name"
148 }
149
150 dhcp_host_add() {
151 local cfg="$1"
152
153 config_get name "$cfg" name
154 [ -n "$name" ] || return 0
155
156 config_get mac "$cfg" mac
157 [ -n "$mac" ] || return 0
158
159 config_get ip "$cfg" ip
160 [ -n "$ip" ] || return 0
161
162 append args "--dhcp-host=$mac,$ip"
163
164 dhcp_option_add "$cfg" "$name"
165 }
166
167 dhcp_mac_add() {
168 local cfg="$1"
169
170 config_get name "$cfg" name
171 [ -n "$name" ] || return 0
172
173 config_get mac "$cfg" mac
174 [ -n "$mac" ] || return 0
175
176 append args "--dhcp-mac=$name,$mac"
177
178 dhcp_option_add "$cfg" "$name"
179 }
180
181 dhcp_boot_add() {
182 local cfg="$1"
183
184 config_get name "$cfg" name
185 [ -n "$name" ] || return 0
186
187 config_get filename "$cfg" filename
188 [ -n "$filename" ] || return 0
189
190 config_get servername "$cfg" servername
191 [ -n "$servername" ] || return 0
192
193 config_get serveraddress "$cfg" serveraddress
194 [ -n "$serveraddress" ] || return 0
195
196 append args "--dhcp-boot=net:$name,$filename,$servername,$serveraddress"
197
198 dhcp_option_add "$cfg" "$name"
199 }
200
201
202 dhcp_add() {
203 local cfg="$1"
204 config_get net "$cfg" interface
205 [ -n "$net" ] || return 0
206
207 config_get name "$cfg" name
208 [ -n "$name" ] || name="$net"
209
210 config_get ifname "$net" ifname
211 [ -n "$ifname" ] || return 0
212
213 config_get dnsserver "$net" dns
214 [ "$cachelocal" = "0" -a -n "$dnsserver" ] && {
215 DNS_SERVERS="$DNS_SERVERS $dnsserver"
216 }
217
218 append_bool "$cfg" ignore "-2 $ifname"
219
220 config_get proto "$net" proto
221 [ static = "$proto" ] || return 0
222
223 config_get ipaddr "$net" ipaddr
224 config_get netmask "$cfg" netmask
225 [ -n "$netmask" ] || config_get netmask "$net" netmask
226
227 #check for an already active dhcp server on the interface, unless 'force' is set
228 config_get_bool force "$cfg" force 0
229 [ "$force" -gt 0 ] || {
230 udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && return 0
231 }
232
233 config_get start "$cfg" start
234 config_get limit "$cfg" limit
235 config_get leasetime "$cfg" leasetime
236 config_get options "$cfg" options
237 config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
238
239 leasetime="${leasetime:-12h}"
240 start="$(dhcp_calc "${start:-100}")"
241 limit="$((${limit:-150} + 1))"
242 eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
243 if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
244 append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
245
246 dhcp_option_add "$cfg" "$name"
247 }
248
249 dhcp_option_add() {
250 local cfg="$1"
251 local name="$2"
252
253 config_get dhcp_option "$cfg" dhcp_option
254 for o in $dhcp_option; do
255 append args "-O $name","$o"
256 done
257
258 }
259
260 start() {
261 include /lib/network
262 scan_interfaces
263 config_load dhcp
264
265 args=""
266 config_foreach dnsmasq dnsmasq
267 config_foreach dhcp_host_add host
268 config_foreach dhcp_boot_add boot
269 config_foreach dhcp_mac_add mac
270 config_foreach dhcp_vendorclass_add vendorclass
271 config_foreach dhcp_userclass_add userclass
272 config_foreach dhcp_circuitid_add circuitid
273 config_foreach dhcp_remoteid_add remoteid
274 config_foreach dhcp_subscrid_add subscrid
275 config_foreach dhcp_add dhcp
276
277 /usr/sbin/dnsmasq $args && {
278 rm -f /tmp/resolv.conf
279 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
280 for DNS_SERVER in $DNS_SERVERS ; do
281 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
282 done
283 }
284 }
285
286 stop() {
287 [ -f /tmp/resolv.conf ] && {
288 rm -f /tmp/resolv.conf
289 ln -s /tmp/resolv.conf.auto /tmp/resolv.conf
290 }
291 killall dnsmasq
292 return 0
293 }