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"
27 [ "$_loctmp" -gt 0 ] && append args "$value"
35 config_get _loctmp "$section" "$option"
36 [ -z "$_loctmp" ] && return 0
37 append args "$switch $_loctmp"
48 append_notinterface() {
54 append_bool "$cfg" authoritative "-K"
55 append_bool "$cfg" nodaemon "-d"
56 append_bool "$cfg" domainneeded "-D"
57 append_bool "$cfg" filterwin2k "-f"
58 append_bool "$cfg" nohosts "-h"
59 append_bool "$cfg" nonegcache "-N"
60 append_bool "$cfg" strictorder "-o"
61 append_bool "$cfg" logqueries "-q"
62 append_bool "$cfg" noresolv "-R"
63 append_bool "$cfg" localise_queries "-y"
64 append_bool "$cfg" readethers "-Z"
65 append_bool "$cfg" dbus "-1"
66 append_bool "$cfg" boguspriv "-b"
67 append_bool "$cfg" expandhosts "-E"
68 append_bool "$cfg" enable_tftp "--enable-tftp"
69 append_bool "$cfg" nonwildcard "-z"
71 append_parm "$cfg" dnsforwardmax "-0"
72 append_parm "$cfg" port "-p"
73 append_parm "$cfg" ednspacket_max "-P"
74 append_parm "$cfg" dhcpleasemax "-X"
75 append_parm "$cfg" "addnhosts" "-H"
76 append_parm "$cfg" "queryport" "-Q"
77 append_parm "$cfg" "domain" "-s"
78 append_parm "$cfg" "local" "-S"
79 config_list_foreach "$cfg" "server" append_server
80 config_list_foreach "$cfg" "interface" append_interface
81 config_list_foreach "$cfg" "notinterface" append_notinterface
82 append_parm "$cfg" "leasefile" "-l"
83 append_parm "$cfg" "resolvfile" "-r"
84 append_parm "$cfg" "tftp_root" "--tftp-root"
85 append_parm "$cfg" "dhcp_boot" "--dhcp-boot"
87 config_get DOMAIN "$cfg" domain
89 config_get leasefile $cfg leasefile
90 [ -e "$leasefile" ] || touch "$leasefile"
91 config_get_bool cachelocal "$cfg" cachelocal 1
93 config_get hostsfile "$cfg" dhcphostsfile
94 [ -e "$hostsfile" ] && append args "--dhcp-hostsfile=$hostsfile"
100 config_get name "$cfg" name
101 [ -n "$name" ] || return 0
103 config_get subscriberid "$cfg" subscriberid
104 [ -n "$subscriberid" ] || return 0
106 append args "--dhcp-subscrid=$name,$subscriberid"
108 dhcp_option_add "$cfg" "$name"
111 dhcp_remoteid_add() {
114 config_get name "$cfg" name
115 [ -n "$name" ] || return 0
117 config_get remoteid "$cfg" remoteid
118 [ -n "$remoteid" ] || return 0
120 append args "--dhcp-remoteid=$name,$remoteid"
122 dhcp_option_add "$cfg" "$name"
125 dhcp_circuitid_add() {
128 config_get name "$cfg" name
129 [ -n "$name" ] || return 0
131 config_get circuitid "$cfg" circuitid
132 [ -n "$circuitid" ] || return 0
134 append args "--dhcp-circuitid=$name,$circuitid"
136 dhcp_option_add "$cfg" "$name"
139 dhcp_userclass_add() {
142 config_get name "$cfg" name
143 [ -n "$name" ] || return 0
145 config_get userclass "$cfg" userclass
146 [ -n "$userclass" ] || return 0
148 append args "--dhcp-userclass=$name,$userclass"
150 dhcp_option_add "$cfg" "$name"
153 dhcp_vendorclass_add() {
156 config_get name "$cfg" name
157 [ -n "$name" ] || return 0
159 config_get vendorclass "$cfg" vendorclass
160 [ -n "$vendorclass" ] || return 0
162 append args "--dhcp-vendorclass=$name,$vendorclass"
164 dhcp_option_add "$cfg" "$name"
170 config_get name "$cfg" name
171 [ -n "$name" ] && dhcp_option_add "$cfg" "$name"
173 config_get mac "$cfg" mac
174 [ -n "$mac" ] || return 0
176 config_get ip "$cfg" ip
177 [ -n "$ip" ] || return 0
179 append args "--dhcp-host=$mac,$ip${name:+,$name}"
185 config_get name "$cfg" name
186 [ -n "$name" ] || return 0
188 config_get mac "$cfg" mac
189 [ -n "$mac" ] || return 0
191 append args "--dhcp-mac=$name,$mac"
193 dhcp_option_add "$cfg" "$name"
199 config_get name "$cfg" name
201 config_get filename "$cfg" filename
202 [ -n "$filename" ] || return 0
204 config_get servername "$cfg" servername
205 [ -n "$servername" ] || return 0
207 config_get serveraddress "$cfg" serveraddress
208 [ -n "$serveraddress" ] || return 0
210 append args "--dhcp-boot=${name:+net:$name,}$filename,$servername,$serveraddress"
212 dhcp_option_add "$cfg" "$name"
218 config_get net "$cfg" interface
219 [ -n "$net" ] || return 0
221 config_get name "$cfg" name
222 [ -n "$name" ] || name="$net"
224 config_get ifname "$net" ifname
225 [ -n "$ifname" ] || return 0
227 config_get dnsserver "$net" dns
228 [ "$cachelocal" = "0" -a -n "$dnsserver" ] && {
229 DNS_SERVERS="$DNS_SERVERS $dnsserver"
232 append_bool "$cfg" ignore "-2 $ifname" && return 0
234 config_get proto "$net" proto
235 [ static = "$proto" ] || return 0
237 config_get ipaddr "$net" ipaddr
238 config_get netmask "$cfg" netmask
239 [ -n "$netmask" ] || config_get netmask "$net" netmask
241 #check for an already active dhcp server on the interface, unless 'force' is set
242 config_get_bool force "$cfg" force 0
243 [ "$force" -gt 0 ] || {
244 udhcpc -n -q -s /bin/true -t 1 -i $ifname >&- && return 0
247 config_get start "$cfg" start
248 config_get limit "$cfg" limit
249 config_get leasetime "$cfg" leasetime
250 config_get options "$cfg" options
251 config_get_bool dynamicdhcp "$cfg" dynamicdhcp 1
253 leasetime="${leasetime:-12h}"
254 start="$(dhcp_calc "${start:-100}")"
255 limit="$((${limit:-150} + 1))"
256 eval "$(ipcalc.sh $ipaddr $netmask $start $limit)"
257 if [ "$dynamicdhcp" = "0" ]; then END="static"; fi
258 append args "--dhcp-range=$name,$START,$END,$NETMASK,$leasetime${options:+ $options}"
260 dhcp_option_add "$cfg" "$name"
267 config_get dhcp_option "$cfg" dhcp_option
268 for o in $dhcp_option; do
269 append args "-O $name","$o"
277 config_get name "$cfg" name
278 [ -n "$name" ] || return 0
280 config_get ip "$cfg" ip
281 [ -n "$ip" ] || return 0
283 local oIFS="$IFS"; IFS="."; set -- $ip; IFS="$oIFS"
284 append args "-A /$name${DOMAIN:+.$DOMAIN}/$ip"
285 append args "--ptr-record=$4.$3.$2.$1.in-addr.arpa,$name${DOMAIN:+.$DOMAIN}"
294 config_foreach dnsmasq dnsmasq
295 config_foreach dhcp_host_add host
296 config_foreach dhcp_boot_add boot
297 config_foreach dhcp_mac_add mac
298 config_foreach dhcp_vendorclass_add vendorclass
299 config_foreach dhcp_userclass_add userclass
300 config_foreach dhcp_circuitid_add circuitid
301 config_foreach dhcp_remoteid_add remoteid
302 config_foreach dhcp_subscrid_add subscrid
303 config_foreach dhcp_domain_add domain
304 config_foreach dhcp_add dhcp
306 /usr/sbin/dnsmasq $args && {
307 rm -f /tmp/resolv.conf
308 DNS_SERVERS="$DNS_SERVERS 127.0.0.1"
309 for DNS_SERVER in $DNS_SERVERS ; do
310 echo "nameserver $DNS_SERVER" >> /tmp/resolv.conf
316 [ -f /tmp/resolv.conf ] && {
317 rm -f /tmp/resolv.conf
318 ln -s /tmp/resolv.conf.auto /tmp/resolv.conf