[package] base-files: use uci_get() wrapper (#7312)
[openwrt/svn-archive/archive.git] / package / base-files / files / usr / share / udhcpc / default.script
1 #!/bin/sh
2 [ -z "$1" ] && echo "Error: should be run by udhcpc" && exit 1
3
4 . /etc/functions.sh
5 include /lib/network
6 RESOLV_CONF="/tmp/resolv.conf.auto"
7
8 change_state () {
9 [ -n "$ifc" ] || return
10 uci_revert_state "$1" "$2" "$3" "$4"
11 uci_set_state "$1" "$2" "$3" "$4"
12 }
13
14 setup_interface () {
15 local old_ip
16 local old_broadcast
17 local old_subnet
18 local old_router
19 local old_dns
20 local user_dns
21 local user_router
22
23 [ -n "$ifc" ] && {
24 config_get old_ip "$ifc" ipaddr
25 config_get old_broadcast "$ifc" broadcast
26 config_get old_subnet "$ifc" netmask
27 }
28
29 [ "$ip" != "$old_ip" ] \
30 || [ "${broadcast:-+}" != "$old_broadcast" ] \
31 || [ "${subnet:-255.255.255.0}" != "$old_subnet" ] && {
32 echo "udhcpc: ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}"
33 ifconfig $interface $ip netmask ${subnet:-255.255.255.0} broadcast ${broadcast:-+}
34
35 change_state network "$ifc" ipaddr "$ip"
36 change_state network "$ifc" broadcast "${broadcast:-+}"
37 change_state network "$ifc" netmask "${subnet:-255.255.255.0}"
38 }
39
40
41 # Default Route
42 [ -n "$ifc" ] && {
43 change_state network "$ifc" lease_gateway "$router"
44 config_get old_router "$ifc" gateway
45 user_router=$(uci_get "network.$ifc.gateway")
46 [ -n "$user_router" ] && router="$user_router"
47 }
48
49 [ -n "$router" ] && [ "$router" != "0.0.0.0" ] && [ "$router" != "255.255.255.255" ] && [ "$router" != "$old_router" ] && {
50 echo "udhcpc: setting default routers: $router"
51
52 local valid_gw=""
53 for i in $router ; do
54 route add default gw $i dev $interface
55 valid_gw="${valid_gw:+$valid_gw|}$i"
56 done
57
58 eval $(route -n | awk '
59 /^0.0.0.0\W{9}('$valid_gw')\W/ {next}
60 /^0.0.0.0/ {print "route del -net "$1" gw "$2";"}
61 ')
62
63 change_state network "$ifc" gateway "$router"
64 }
65
66 # CIDR STATIC ROUTES (rfc3442)
67 [ -n "$cidrroute" ] && {
68 # This defines how many CIDR Routes can be assigned so that we do not enter
69 # an endless loop on malformed data
70 MAXCIDRROUTES=24;
71 while [ ${MAXCIDRROUTES} -gt "0" ]; do
72 # Format is
73 # $MASK $NW $GW
74 # $NW == AAA.BBB.CCC.DDD
75 # $GW == EEE.FFF.CCC.DDD
76 # $MASK AAA.[BBB].[CCC].[DDD] EEE.FFF.GGG.HHH
77 # 1 2 3 4 5 6 7 8 9
78 MASK=$(echo $cidrroute | awk '{ print $1 }')
79 if [ ${MASK} = "0" ] ; then
80 # $MASK EEE.FFF.GGG.HHH
81 # 1 2 3 5 6
82 NW="0"
83 GW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' )
84 elif [ ${MASK} -le "8" ] ; then
85 # $MASK AAA EEE.FFF.GGG.HHH
86 # 1 2 3 5 6 7
87 NW=$(echo $cidrroute | awk '{ print $2 }' )
88 GW=$(echo $cidrroute | awk '{ print $3"."$4"."$5"."$6 }' )
89 elif [ ${MASK} -le "16" ] ; then
90 # $MASK AAA.BBB EEE.FFF.GGG.HHH
91 # 1 2 3 5 6 7 8
92 NW=$(echo $cidrroute | awk '{ print $2"."$3 }' )
93 GW=$(echo $cidrroute | awk '{ print $4"."$5"."$6"."$7 }' )
94 elif [ ${MASK} -le "24" ] ; then
95 # $MASK AAA.BBB.CCC EEE.FFF.GGG.HHH
96 # 1 2 3 4 5 6 7 8
97 NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4 }' )
98 GW=$(echo $cidrroute | awk '{ print $5"."$6"."$7"."$8 }' )
99
100 else
101 # $MASK AAA.BBB.CCC.DDD EEE.FFF.GGG.HHH
102 # 1 2 3 4 5 6 7 8 9
103 NW=$(echo $cidrroute | awk '{ print $2"."$3"."$4"."$5 }' )
104 GW=$(echo $cidrroute | awk '{ print $6"."$7"."$8"."$9 }' )
105 fi
106 echo [$ROUTECOUNTER] Route Network: $NW/$MASK Gateway: $GW on $interface
107
108 # TODO: Check for malformed data here to eliminate counter workaround
109 # Malformed data is: ... or xxx... or xxx.yyy.. or xxx.yyy.zzz.
110
111 [ -n "$NW" ] && [ -n "$GW" ] && {
112 route add $NW gw $GW dev $interface
113 }
114
115 # Clear the strings incase they don't get set next time around
116 if [ ${NW} = "0" ]; then
117 NW=""
118 fi
119 TMP="$MASK $NW $GW "
120 NW=""
121 GW=""
122
123 # Remove the '.' so that we can delete them from the input with sed
124 TMP=$(echo $TMP | sed "s/\./ /g")
125
126 # Remove the previous entry from cidrroute
127 cidrroute=$(echo $cidrroute | sed "s/$TMP//g")
128
129 # Add to counter
130 let ROUTECOUNTER=$ROUTECOUNTER+1;
131 let MAXCIDRROUTES=$MAXCIDRROUTES-1;
132
133 # Leave the loop if cidrroutes is empty (we've parsed everything)
134 [ ! -n "$cidrroute" ] && break
135
136 done
137
138 echo "done."
139 }
140
141 # DNS
142 config_get old_dns "$ifc" dns
143 user_dns=$(uci_get "network.$ifc.dns")
144 [ -n "$user_dns" ] && dns="$user_dns"
145
146 [ -n "$dns" ] && [ ! -s "${RESOLV_CONF}" -o "$dns" != "$old_dns" ] && {
147 echo "udhcpc: setting dns servers: $dns"
148 echo -n > "${RESOLV_CONF}.tmp"
149 for i in $dns ; do
150 echo "nameserver $i" >> "${RESOLV_CONF}.tmp"
151 done
152 ${domain:+echo search $domain} >> "${RESOLV_CONF}.tmp"
153 mv "${RESOLV_CONF}.tmp" "$RESOLV_CONF"
154
155 change_state network "$ifc" dnsdomain "$domain"
156 change_state network "$ifc" dns "$dns"
157 }
158
159 [ -n "$ifc" ] || return
160
161 # UCI State
162 change_state network "$ifc" lease_server "$serverid"
163 change_state network "$ifc" lease_acquired "$(date '+%s')"
164 change_state network "$ifc" lease_lifetime "$lease"
165 [ -n "$ntpsrv" ] && change_state network "$ifc" lease_ntpsrv "$ntpsrv"
166 [ -n "$timesvr" ] && change_state network "$ifc" lease_timesrv "$timesvr"
167 [ -n "$hostname" ] && change_state network "$ifc" lease_hostname "$hostname"
168 [ -n "$timezone" ] && change_state network "$ifc" lease_timezone "$timezone"
169
170
171 # Hotplug
172 env -i ACTION="$1" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
173 }
174
175
176 scan_interfaces
177 applied=
178 for ifc in $interfaces __default; do
179 if [ "$ifc" = __default ]; then
180 ifc=""
181 [ -n "$applied" ] && continue
182 else
183 config_get ifname "$ifc" ifname
184 [ "$ifname" = "$interface" ] || continue
185
186 config_get proto "$ifc" proto
187 [ "$proto" = "dhcp" ] || continue
188 applied=true
189 fi
190
191 case "$1" in
192 deconfig)
193 ifconfig "$interface" 0.0.0.0
194 [ -n "$ifc" ] && {
195 env -i ACTION="ifdown" INTERFACE="$ifc" DEVICE="$ifname" PROTO=dhcp /sbin/hotplug-call iface
196
197 config_get device "$ifc" device
198 config_get ifname "$ifc" ifname
199 config_get aliases "$ifc" aliases
200 uci_revert_state network "$ifc"
201 [ -n "$device" ] && uci_set_state network "$ifc" device "$device"
202 [ -n "$ifname" ] && uci_set_state network "$ifc" ifname "$ifname"
203 [ -n "$aliases" ] && uci_set_state network "$ifc" aliases "$aliases"
204 }
205 ;;
206 renew)
207 setup_interface update
208 ;;
209 bound)
210 setup_interface ifup
211 ;;
212 esac
213 done
214
215 # user rules
216 [ -f /etc/udhcpc.user ] && . /etc/udhcpc.user
217
218 exit 0