convert the rest of /etc/dnsmasq.conf to uci
[openwrt.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 "$3"
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 dnsmasq() {
40         local cfg="$1"
41         append_bool "$cfg" authoritative "-K"
42         append_bool "$cfg" nodaemon "-d"
43         append_bool "$cfg" domainneeded "-D"
44         append_bool "$cfg" filterwin2k "-f"
45         append_bool "$cfg" nohosts "-h"
46         append_bool "$cfg" nonegcache "-N"
47         append_bool "$cfg" strictorder "-o"
48         append_bool "$cfg" logqueries "-q"
49         append_bool "$cfg" noresolv "-R"
50         append_bool "$cfg" localise_queries "-y"
51         append_bool "$cfg" readethers "-Z"
52         append_bool "$cfg" dbus "-l"
53         append_bool "$cfg" boguspriv "-b"
54         append_bool "$cfg" expandhosts "-E"
55
56         append_parm "$cfg" dnsforwardmax "-0"
57         append_parm "$cfg" port "-p"
58         append_parm "$cfg" ednspacket_max "-P"
59         append_parm "$cfg" dhcpleasemax "-X"
60         append_parm "$cfg" "addnhosts" "-H"
61         append_parm "$cfg" "queryport" "-Q"
62         append_parm "$cfg" "domain" "-s"
63         append_parm "$cfg" "local" "-S"
64         append_parm "$cfg" "leasefile" "-l"
65         append_parm "$cfg" "resolvfile" "-r"
66 }
67
68 dhcp_subscrid_add() {
69         local cfg="$1"
70
71         config_get name "$cfg" name
72         [ -n "$name" ] || return 0
73
74         config_get subscriberid "$cfg" subscriberid
75         [ -n "$subscriberid" ] || return 0
76
77         append args "--dhcp-subscrid=$name,$subscriberid"
78
79         dhcp_option_add "$cfg" "$name"
80 }
81
82 dhcp_remoteid_add() {
83         local cfg="$1"
84
85         config_get name "$cfg" name
86         [ -n "$name" ] || return 0
87
88         config_get remoteid "$cfg" remoteid
89         [ -n "$remoteid" ] || return 0
90
91         append args "--dhcp-remoteid=$name,$remoteid"
92
93         dhcp_option_add "$cfg" "$name"
94 }
95
96 dhcp_circuitid_add() {
97         local cfg="$1"
98
99         config_get name "$cfg" name
100         [ -n "$name" ] || return 0
101
102         config_get circuitid "$cfg" circuitid
103         [ -n "$circuitid" ] || return 0
104
105         append args "--dhcp-circuitid=$name,$circuitid"
106
107         dhcp_option_add "$cfg" "$name"
108 }
109
110 dhcp_userclass_add() {
111         local cfg="$1"
112
113         config_get name "$cfg" name
114         [ -n "$name" ] || return 0
115
116         config_get userclass "$cfg" userclass
117         [ -n "$userclass" ] || return 0
118
119         append args "--dhcp-userclass=$name,$userclass"
120
121         dhcp_option_add "$cfg" "$name"
122 }
123
124 dhcp_vendorclass_add() {
125         local cfg="$1"
126
127         config_get name "$cfg" name
128         [ -n "$name" ] || return 0
129
130         config_get vendorclass "$cfg" vendorclass
131         [ -n "$vendorclass" ] || return 0
132
133         append args "--dhcp-vendorclass=$name,$vendorclass"
134
135         dhcp_option_add "$cfg" "$name"
136 }
137
138 dhcp_host_add() {
139         local cfg="$1"
140
141         config_get name "$cfg" name
142         [ -n "$name" ] || return 0
143
144         config_get mac "$cfg" mac
145         [ -n "$mac" ] || return 0
146
147
148         append args "--dhcp-host=$mac,$ip"
149
150         dhcp_option_add "$cfg" "$name"
151 }
152
153 dhcp_mac_add() {
154         local cfg="$1"
155
156         config_get name "$cfg" name
157         [ -n "$name" ] || return 0
158
159         config_get mac "$cfg" mac
160         [ -n "$mac" ] || return 0
161
162         append args "--dhcp-mac=$name,$mac"
163
164         dhcp_option_add "$cfg" "$name"
165 }
166
167 dhcp_add() {
168         local cfg="$1"
169         config_get net "$cfg" interface
170         [ -n "$net" ] || return 0
171
172         config_get name "$cfg" name
173         [ -n "$name" ] || name="$net"
174
175         config_get ifname "$net" ifname
176         [ -n "$ifname" ] || return 0
177
178         config_get dnsserver "$net" dns
179         [ -n "$dnsserver" ] && {
180                 DNS_SERVERS="$DNS_SERVERS $dnsserver"
181         }
182
183         append_bool "$cfg" ignore "-I $ifname"
184
185         config_get proto "$net" proto
186         [ static = "$proto" ] || return 0
187
188         config_get ipaddr "$net" ipaddr
189         config_get netmask "$net" netmask
190
191         #check for an already active dhcp server on the interface, unless 'force' is set
192         config_get_bool force "$cfg" force 0
193         [ "$force" -gt 0 ] || {
194                 udhcpc -n -q -R -s /bin/true -t 1 -i $ifname >&- && return 0
195         }
196
197         config_get start "$cfg" start
198         config_get limit "$cfg" limit
199         config_get leasetime "$cfg" leasetime
200         config_get options "$cfg" options
201
202         leasetime="${leasetime:-12h}"
203         start="$(dhcp_calc "${start:-100}")"
204         limit="$((${limit:-150} + 1))"
205         eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
206         append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
207
208         dhcp_option_add "$cfg" "$name"
209 }
210
211 dhcp_option_add() {
212         local cfg="$1"
213         local name="$2"
214
215         for count in $(seq 0 100); do
216                 eval current_value=\$CONFIG_"$cfg"_dhcp"$count"
217                 if [ -z "$current_value" ]; then
218                         let "count-=1"
219                         break
220                 fi
221                 append args "-O $name","$current_value"
222         done
223
224 }
225
226 start() {
227         include /lib/network
228         scan_interfaces
229         config_load /var/state/network
230         config_load dhcp
231
232         args=""
233         config_foreach dnsmasq dnsmasq
234         config_foreach dhcp_host_add host
235         config_foreach dhcp_mac_add mac
236         config_foreach dhcp_vendorclass_add vendorclass
237         config_foreach dhcp_userclass_add userclass
238         config_foreach dhcp_circuitid_add circuitid
239         config_foreach dhcp_remoteid_add remoteid
240         config_foreach dhcp_subscrid_add subscrid
241         config_foreach dhcp_add dhcp
242
243         /usr/sbin/dnsmasq $args && {
244                 rm -f /tmp/resolv.conf
245                 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
246                 for DNS_SERVER in $DNS_SERVERS ; do
247                         echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
248                 done
249         }
250 }
251
252 stop() {
253         killall dnsmasq
254 }