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 "$netmask" ] || return 0
39 config_get parentiface "$net" interface
40 [ -n "$parentiface" ] && {
41 config_get parentproto "$parentiface" proto
42 config_get parentipaddr "$parentiface" ipaddr
43 config_get parentnetmask "$parentiface" netmask
46 eval "$(ipcalc.sh $ipaddr $netmask)"
48 ### Add interface specific chain entry rules
49 ipt_log "zone_${zone}_prerouting" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_prerouting -t nat
50 ipt_log "zone_${zone}_forward" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_forwarding -t filter
52 ### Allow traffic to the same subnet
53 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
54 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
56 ### Allow traffic to the mesh subnet
57 [ "$parentproto" = "static" -a -n "$parentipaddr" ] && {
58 iptables -t nat -I luci_splash_prerouting -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
59 iptables -t filter -I luci_splash_forwarding -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
62 qos_iface_add "$ifname"
66 config_get zone "$1" zone
67 [ -n "$zone" ] || return 0
69 config_get net "$1" network
70 [ -n "$net" ] || return 0
72 config_get ifname "$net" ifname
73 [ -n "$ifname" ] || return 0
75 # Clear interface specific rules
76 [ -s $IPT_REPLAY ] && {
77 grep -- "-i ${ifname%:*}" $IPT_REPLAY | while read ln; do silent $ln; done
78 sed -ie "/-i ${ifname%:*}/d" $IPT_REPLAY
81 qos_iface_del "$ifname"
85 config_get mac "$1" mac
92 config_get ipaddr "$cfg" ipaddr
93 config_get netmask "$cfg" netmask
96 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
97 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
104 # 77 -> download root qdisc
105 # 78 -> upload root qdisc
106 # 79 -> fwmark: client->inet
107 # 80 -> fwmark: inet->client
109 silent tc qdisc del dev "$iface" root handle 77:
111 if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
112 tc qdisc add dev "$iface" root handle 77: htb
114 # assume maximum rate of 20.000 kilobit for wlan
115 tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
117 # set download limit and burst
118 tc class add dev "$iface" parent 77:1 classid 77:10 htb \
119 rate ${LIMIT_DOWN}kbit ceil ${LIMIT_DOWN_BURST}kbit prio 2
121 tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
123 # adding ingress can result in "File exists" if qos-scripts are active
124 silent tc qdisc add dev "$iface" ingress
126 # set client download speed
127 tc filter add dev "$iface" parent 77: protocol ip prio 2 \
128 handle 80 fw flowid 77:10
130 # set client upload speed
131 tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
132 handle 79 fw police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
139 silent tc qdisc del dev "$iface" root handle 77:
140 silent tc qdisc del dev "$iface" root handle 78:
141 silent tc filter del dev "$iface" parent ffff: protocol ip prio 1 handle 79 fw
145 ### Setup splash-relay
146 uci get uhttpd.splash 2>/dev/null || {
148 set uhttpd.splash=uhttpd
149 set uhttpd.splash.home="/www/cgi-bin/splash/"
150 set uhttpd.splash.interpreter=".sh=/bin/ash"
151 set uhttpd.splash.listen_http="8082"
152 set uhttpd.splash.index_page="splash.sh"
153 set uhttpd.splash.error_page="/splash.sh"
159 ### We are started by the firewall include
168 config_load luci_splash
171 config_get LIMIT_UP general limit_up
172 config_get LIMIT_DOWN general limit_down
173 config_get LIMIT_DOWN_BURST general limit_down_burst
175 LIMIT_UP="$((8*${LIMIT_UP:-0}))"
176 LIMIT_DOWN="$((8*${LIMIT_DOWN:-0}))"
177 LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:+$((8*$LIMIT_DOWN_BURST))}"
178 LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN / 5 * 6))}"
180 ### Load required modules
181 [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
182 silent insmod act_police
184 silent insmod cls_u32
185 silent insmod sch_htb
186 silent insmod sch_sfq
187 silent insmod sch_ingress
191 iptables -t nat -N luci_splash_prerouting
192 iptables -t nat -N luci_splash_leases
193 iptables -t filter -N luci_splash_forwarding
194 iptables -t filter -N luci_splash_filter
196 ### Clear iptables replay log
197 [ -s $IPT_REPLAY ] && . $IPT_REPLAY
198 echo -n > $IPT_REPLAY
200 ### Build the main and portal rule
201 config_foreach iface_add iface
202 config_foreach subnet_add subnet
204 ### Add interface independant prerouting rules
205 iptables -t nat -A luci_splash_prerouting -j luci_splash_leases
206 iptables -t nat -A luci_splash_leases -p udp --dport 53 -j REDIRECT --to-ports 53
207 iptables -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
209 ### Add interface independant forwarding rules
210 iptables -t filter -A luci_splash_forwarding -j luci_splash_filter
211 iptables -t filter -A luci_splash_filter -p tcp -j REJECT --reject-with tcp-reset
212 iptables -t filter -A luci_splash_filter -j REJECT --reject-with icmp-net-prohibited
215 [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
216 iptables -t mangle -N luci_splash_mark_out
217 iptables -t mangle -N luci_splash_mark_in
218 iptables -t mangle -I PREROUTING -j luci_splash_mark_out
219 iptables -t mangle -I POSTROUTING -j luci_splash_mark_in
222 ### Find active mac addresses
224 config_foreach mac_add lease
225 config_foreach mac_add blacklist
226 config_foreach mac_add whitelist
228 ### Add crontab entry
229 test -f /etc/crontabs/root || touch /etc/crontabs/root
230 grep -q luci-splash /etc/crontabs/root || {
231 echo '*/5 * * * * /usr/sbin/luci-splash sync' >> /etc/crontabs/root
236 ### Populate iptables
237 [ -n "$MACS" ] && luci-splash add-rules $MACS
245 config_load luci_splash
247 ### Clear interface rules
248 config_foreach iface_del iface
250 silent iptables -t mangle -D PREROUTING -j luci_splash_mark_out
251 silent iptables -t mangle -D POSTROUTING -j luci_splash_mark_in
254 silent iptables -t nat -F luci_splash_prerouting
255 silent iptables -t nat -F luci_splash_leases
256 silent iptables -t filter -F luci_splash_forwarding
257 silent iptables -t filter -F luci_splash_filter
258 silent iptables -t mangle -F luci_splash_mark_out
259 silent iptables -t mangle -F luci_splash_mark_in
262 silent iptables -t nat -X luci_splash_prerouting
263 silent iptables -t nat -X luci_splash_leases
264 silent iptables -t filter -X luci_splash_forwarding
265 silent iptables -t filter -X luci_splash_filter
266 silent iptables -t mangle -X luci_splash_mark_out
267 silent iptables -t mangle -X luci_splash_mark_in
269 sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
275 ### Find active mac addresses
277 config_foreach mac_add lease
280 [ -n "$MACS" ] && luci-splash remove $MACS