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
14 config_load luci_splash
22 echo iptables -D "$@" >> $IPT_REPLAY
28 config_get zone "$cfg" zone
29 [ -n "$zone" ] || return 0
31 config_get net "$cfg" network
32 [ -n "$net" ] || return 0
34 config_get ifname "$net" ifname
35 [ -n "$ifname" ] || return 0
37 config_get ipaddr "$net" ipaddr
38 [ -n "$ipaddr" ] || return 0
40 config_get netmask "$net" netmask
41 [ -n "$netmask" ] || return 0
43 config_get parentiface "$net" interface
44 [ -n "$parentiface" ] && {
45 config_get parentproto "$parentiface" proto
46 config_get parentipaddr "$parentiface" ipaddr
47 config_get parentnetmask "$parentiface" netmask
50 eval "$(ipcalc.sh $ipaddr $netmask)"
52 ### Add interface specific chain entry rules
53 ipt_log "zone_${zone}_prerouting" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_prerouting -t nat
54 ipt_log "zone_${zone}_forward" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_forwarding -t filter
56 ### Allow traffic to the same subnet
57 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
58 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
60 ### Allow traffic to the mesh subnet
61 [ "$parentproto" = "static" -a -n "$parentipaddr" ] && {
62 iptables -t nat -I luci_splash_prerouting -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
63 iptables -t filter -I luci_splash_forwarding -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
66 qos_iface_add "$ifname"
70 config_get zone "$1" zone
71 [ -n "$zone" ] || return 0
73 config_get net "$1" network
74 [ -n "$net" ] || return 0
76 config_get ifname "$net" ifname
77 [ -n "$ifname" ] || return 0
79 # Clear interface specific rules
80 [ -s $IPT_REPLAY ] && {
81 grep -- "-i ${ifname%:*}" $IPT_REPLAY | while read ln; do silent $ln; done
82 sed -ie "/-i ${ifname%:*}/d" $IPT_REPLAY
85 qos_iface_del "$ifname"
89 config_get mac "$1" mac
96 config_get ipaddr "$cfg" ipaddr
97 config_get netmask "$cfg" netmask
100 iptables -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
101 iptables -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
108 # 77 -> download root qdisc
109 # 78 -> upload root qdisc
110 # 79 -> fwmark: client->inet
111 # 80 -> fwmark: inet->client
113 silent tc qdisc del dev "$iface" root handle 77:
115 if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
116 tc qdisc add dev "$iface" root handle 77: htb
118 # assume maximum rate of 20.000 kilobit for wlan
119 tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
121 # set download limit and burst
122 tc class add dev "$iface" parent 77:1 classid 77:10 htb \
123 rate ${LIMIT_DOWN}kbit ceil ${LIMIT_DOWN_BURST}kbit prio 2
125 tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
127 # adding ingress can result in "File exists" if qos-scripts are active
128 silent tc qdisc add dev "$iface" ingress
130 # set client download speed
131 tc filter add dev "$iface" parent 77: protocol ip prio 2 \
132 handle 80 fw flowid 77:10
134 # set client upload speed
135 tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
136 handle 79 fw police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
143 silent tc qdisc del dev "$iface" root handle 77:
144 silent tc qdisc del dev "$iface" root handle 78:
145 silent tc filter del dev "$iface" parent ffff: protocol ip prio 1 handle 79 fw
149 ### Setup splash-relay
150 uci get uhttpd.splash 2>/dev/null || {
152 set uhttpd.splash=uhttpd
153 set uhttpd.splash.home="/www/cgi-bin/splash/"
154 set uhttpd.splash.interpreter=".sh=/bin/ash"
155 set uhttpd.splash.listen_http="8082"
156 set uhttpd.splash.index_page="splash.sh"
157 set uhttpd.splash.error_page="/splash.sh"
163 ### We are started by the firewall include
168 lock -w $LOCK && lock $LOCK
171 config_get LIMIT_UP general limit_up
172 config_get LIMIT_DOWN general limit_down
173 config_get LIMIT_DOWN_BURST general limit_down_burst
175 LIMIT_UP="$((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 ] && {
183 silent insmod cls_u32
184 silent insmod sch_htb
185 silent insmod sch_sfq
186 silent insmod sch_ingress
190 iptables -t nat -N luci_splash_prerouting
191 iptables -t nat -N luci_splash_leases
192 iptables -t filter -N luci_splash_forwarding
193 iptables -t filter -N luci_splash_filter
195 ### Clear iptables replay log
196 [ -s $IPT_REPLAY ] && . $IPT_REPLAY
197 echo -n > $IPT_REPLAY
199 ### Build the main and portal rule
200 config_foreach iface_add iface
201 config_foreach subnet_add subnet
203 ### Add interface independant prerouting rules
204 iptables -t nat -A luci_splash_prerouting -j luci_splash_leases
205 iptables -t nat -A luci_splash_leases -p udp --dport 53 -j REDIRECT --to-ports 53
206 iptables -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
208 ### Add interface independant forwarding rules
209 iptables -t filter -A luci_splash_forwarding -j luci_splash_filter
210 iptables -t filter -A luci_splash_filter -p tcp -j REJECT --reject-with tcp-reset
211 iptables -t filter -A luci_splash_filter -j REJECT --reject-with icmp-net-prohibited
214 [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
215 iptables -t mangle -N luci_splash_mark_out
216 iptables -t mangle -N luci_splash_mark_in
217 iptables -t mangle -I PREROUTING -j luci_splash_mark_out
218 iptables -t mangle -I POSTROUTING -j luci_splash_mark_in
221 ### Find active mac addresses
223 config_foreach mac_add lease
224 config_foreach mac_add blacklist
225 config_foreach mac_add whitelist
227 ### Add crontab entry
228 test -f /etc/crontabs/root || touch /etc/crontabs/root
229 grep -q luci-splash /etc/crontabs/root || {
230 echo '*/5 * * * * /usr/sbin/luci-splash sync' >> /etc/crontabs/root
235 ### Populate iptables
236 [ -n "$MACS" ] && luci-splash add-rules $MACS
240 lock -w $LOCK && lock $LOCK
242 ### Clear interface rules
243 config_foreach iface_del iface
245 silent iptables -t mangle -D PREROUTING -j luci_splash_mark_out
246 silent iptables -t mangle -D POSTROUTING -j luci_splash_mark_in
249 silent iptables -t nat -F luci_splash_prerouting
250 silent iptables -t nat -F luci_splash_leases
251 silent iptables -t filter -F luci_splash_forwarding
252 silent iptables -t filter -F luci_splash_filter
253 silent iptables -t mangle -F luci_splash_mark_out
254 silent iptables -t mangle -F luci_splash_mark_in
257 silent iptables -t nat -X luci_splash_prerouting
258 silent iptables -t nat -X luci_splash_leases
259 silent iptables -t filter -X luci_splash_forwarding
260 silent iptables -t filter -X luci_splash_filter
261 silent iptables -t mangle -X luci_splash_mark_out
262 silent iptables -t mangle -X luci_splash_mark_in
264 sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
270 ### Find active mac addresses
272 config_foreach mac_add lease
275 [ -n "$MACS" ] && luci-splash remove $MACS