1 #!/bin/sh /etc/rc.common
4 EXTRA_COMMANDS=clear_leases
9 IPT_REPLAY=/var/run/luci_splash.iptlog
10 LOCK=/var/run/luci_splash.lock
18 echo iptables -D "$@" >> $IPT_REPLAY
24 config_get zone "$cfg" zone
25 [ -n "$zone" ] || return 0
27 config_get net "$cfg" network
28 [ -n "$net" ] || return 0
30 config_get ifname "$net" ifname
31 [ -n "$ifname" ] || return 0
33 config_get ipaddr "$net" ipaddr
34 [ -n "$ipaddr" ] || return 0
36 config_get netmask "$net" netmask
37 [ -n "$netmask" ] || return 0
39 parentiface="$(uci -q get network.${net}.ifname)"
40 parentiface=${parentiface#@}
42 [ -n "$parentiface" ] && {
43 config_get parentproto "$parentiface" proto
44 config_get parentipaddr "$parentiface" ipaddr
45 config_get parentnetmask "$parentiface" netmask
48 eval "$(ipcalc.sh $ipaddr $netmask)"
50 ### Add interface specific chain entry rules
51 ipt_log "zone_${zone}_prerouting" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_prerouting -t nat
52 ipt_log "zone_${zone}_forward" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_forwarding -t filter
54 ### Allow traffic to the same subnet
55 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
56 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
58 ### Allow traffic to the mesh subnet
59 [ "$parentproto" = "static" -a -n "$parentipaddr" ] && {
60 iptables -t nat -I luci_splash_prerouting -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
61 iptables -t filter -I luci_splash_forwarding -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
64 qos_iface_add "$ifname"
68 config_get zone "$1" zone
69 [ -n "$zone" ] || return 0
71 config_get net "$1" network
72 [ -n "$net" ] || return 0
74 config_get ifname "$net" ifname
75 [ -n "$ifname" ] || return 0
77 # Clear interface specific rules
78 [ -s $IPT_REPLAY ] && {
79 grep -- "-i ${ifname%:*}" $IPT_REPLAY | while read ln; do silent $ln; done
80 sed -ie "/-i ${ifname%:*}/d" $IPT_REPLAY
83 qos_iface_del "$ifname"
87 config_get mac "$1" mac
94 config_get ipaddr "$cfg" ipaddr
95 config_get netmask "$cfg" netmask
98 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
99 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
106 # 77 -> download root qdisc
107 # 78 -> upload root qdisc
108 # 79 -> fwmark: client->inet
109 # 80 -> fwmark: inet->client
111 silent tc qdisc del dev "$iface" root handle 77:
113 if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
114 tc qdisc add dev "$iface" root handle 77: htb
116 # assume maximum rate of 20.000 kilobit for wlan
117 tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
119 # set download limit and burst
120 tc class add dev "$iface" parent 77:1 classid 77:10 htb \
121 rate ${LIMIT_DOWN}kbit ceil ${LIMIT_DOWN_BURST}kbit prio 2
123 tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
125 # adding ingress can result in "File exists" if qos-scripts are active
126 silent tc qdisc add dev "$iface" ingress
128 # set client download speed
129 tc filter add dev "$iface" parent 77: protocol ip prio 2 \
130 handle 80 fw flowid 77:10
132 # set client upload speed
133 tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
134 handle 79 fw police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
141 silent tc qdisc del dev "$iface" root handle 77:
142 silent tc qdisc del dev "$iface" root handle 78:
143 silent tc filter del dev "$iface" parent ffff: protocol ip prio 1 handle 79 fw
147 ### Setup splash-relay
148 uci get uhttpd.splash 2>/dev/null || {
150 set uhttpd.splash=uhttpd
151 set uhttpd.splash.home="/www/cgi-bin/splash/"
152 set uhttpd.splash.interpreter=".sh=/bin/ash"
153 set uhttpd.splash.listen_http="8082"
154 set uhttpd.splash.index_page="splash.sh"
155 set uhttpd.splash.error_page="/splash.sh"
161 ### We are started by the firewall include
170 config_load luci_splash
173 config_get LIMIT_UP general limit_up
174 config_get LIMIT_DOWN general limit_down
175 config_get LIMIT_DOWN_BURST general limit_down_burst
177 LIMIT_UP="$((8*${LIMIT_UP:-0}))"
178 LIMIT_DOWN="$((8*${LIMIT_DOWN:-0}))"
179 LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:+$((8*$LIMIT_DOWN_BURST))}"
180 LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN / 5 * 6))}"
182 ### Load required modules
183 [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
184 silent insmod act_police
186 silent insmod cls_u32
187 silent insmod sch_htb
188 silent insmod sch_sfq
189 silent insmod sch_ingress
193 iptables -t nat -N luci_splash_prerouting
194 iptables -t nat -N luci_splash_leases
195 iptables -t filter -N luci_splash_forwarding
196 iptables -t filter -N luci_splash_filter
198 ### Clear iptables replay log
199 [ -s $IPT_REPLAY ] && . $IPT_REPLAY
200 echo -n > $IPT_REPLAY
202 ### Build the main and portal rule
203 config_foreach iface_add iface
204 config_foreach subnet_add subnet
206 ### Add interface independant prerouting rules
207 iptables -t nat -A luci_splash_prerouting -j luci_splash_leases
208 iptables -t nat -A luci_splash_leases -p udp --dport 53 -j REDIRECT --to-ports 53
209 iptables -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
211 ### Add interface independant forwarding rules
212 iptables -t filter -A luci_splash_forwarding -j luci_splash_filter
213 iptables -t filter -A luci_splash_filter -p tcp -j REJECT --reject-with tcp-reset
214 iptables -t filter -A luci_splash_filter -j REJECT --reject-with icmp-net-prohibited
217 [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
218 iptables -t mangle -N luci_splash_mark_out
219 iptables -t mangle -N luci_splash_mark_in
220 iptables -t mangle -I PREROUTING -j luci_splash_mark_out
221 iptables -t mangle -I POSTROUTING -j luci_splash_mark_in
224 ### Find active mac addresses
226 config_foreach mac_add lease
227 config_foreach mac_add blacklist
228 config_foreach mac_add whitelist
230 ### Add crontab entry
231 test -f /etc/crontabs/root || touch /etc/crontabs/root
232 grep -q luci-splash /etc/crontabs/root || {
233 echo '*/5 * * * * /usr/sbin/luci-splash sync' >> /etc/crontabs/root
238 ### Populate iptables
239 [ -n "$MACS" ] && luci-splash add-rules $MACS
247 config_load luci_splash
249 ### Clear interface rules
250 config_foreach iface_del iface
252 silent iptables -t mangle -D PREROUTING -j luci_splash_mark_out
253 silent iptables -t mangle -D POSTROUTING -j luci_splash_mark_in
256 silent iptables -t nat -F luci_splash_prerouting
257 silent iptables -t nat -F luci_splash_leases
258 silent iptables -t filter -F luci_splash_forwarding
259 silent iptables -t filter -F luci_splash_filter
260 silent iptables -t mangle -F luci_splash_mark_out
261 silent iptables -t mangle -F luci_splash_mark_in
264 silent iptables -t nat -X luci_splash_prerouting
265 silent iptables -t nat -X luci_splash_leases
266 silent iptables -t filter -X luci_splash_forwarding
267 silent iptables -t filter -X luci_splash_filter
268 silent iptables -t mangle -X luci_splash_mark_out
269 silent iptables -t mangle -X luci_splash_mark_in
271 sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
277 ### Find active mac addresses
279 config_foreach mac_add lease
282 [ -n "$MACS" ] && luci-splash remove $MACS