#!/bin/sh /etc/rc.common
START=70
+EXTRA_COMMANDS=clear_leases
+SPLASH_INTERFACES=""
+LIMIT_DOWN=0
+LIMIT_DOWN_BURST=0
+LIMIT_UP=0
+
+silent() {
+ "$@" 2>/dev/null
+}
iface_add() {
local cfg="$1"
+ config_get zone "$cfg" zone
+ [ -n "$zone" ] || return 0
+
config_get net "$cfg" network
[ -n "$net" ] || return 0
-
- config_get iface "$net" ifname
- [ -n "$iface" ] || return 0
- iface="${iface%%:*}"
+
+ config_get ifname "$net" ifname
+ [ -n "$ifname" ] || return 0
config_get ipaddr "$net" ipaddr
[ -n "$ipaddr" ] || return 0
config_get netmask "$net" netmask
[ -n "$netmask" ] || return 0
- eval "$(ipcalc.sh $ipaddr $netmask)"
+ config_get parentiface "$net" interface
+ [ -n "$parentiface" ] && {
+ config_get parentproto "$parentiface" proto
+ config_get parentipaddr "$parentiface" ipaddr
+ config_get parentnetmask "$parentiface" netmask
+ }
- iptables -t nat -A luci_splash -i "$iface" -s "$NETWORK/$PREFIX" -j luci_splash_portal
- iptables -t nat -A luci_splash_portal -i "$iface" -s "$NETWORK/$PREFIX" -d "$ipaddr" -p tcp -m multiport --dports 22,80,443 -j RETURN
+ eval "$(ipcalc.sh $ipaddr $netmask)"
+
+ iptables -t nat -A prerouting_${zone} -j luci_splash_prerouting
+ iptables -t nat -A luci_splash_prerouting -j luci_splash_portal
+
+ iptables -t filter -I luci_splash_filter -s "$NETWORK/$PREFIX" -d "$ipaddr/${netmask:-32}" -j RETURN
+ iptables -t nat -I luci_splash_leases -s "$NETWORK/$PREFIX" -d "$ipaddr/${netmask:-32}" -j RETURN
+
+ [ "$parentproto" = "static" -a -n "$parentipaddr" ] && {
+ iptables -t filter -I luci_splash_filter -s "$NETWORK/$PREFIX" -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
+ iptables -t nat -I luci_splash_leases -s "$NETWORK/$PREFIX" -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
+ }
+
+ iptables -t filter -A luci_splash_filter -s "$NETWORK/$PREFIX" -p udp --dport 53 -j RETURN
+ iptables -t filter -A luci_splash_filter -s "$NETWORK/$PREFIX" -p tcp --dport 22 -j RETURN # XXX: ssh really needed?
+ iptables -t filter -A luci_splash_filter -s "$NETWORK/$PREFIX" -p tcp --dport 80 -j RETURN
+ iptables -t filter -A luci_splash_filter -s "$NETWORK/$PREFIX" -j REJECT --reject-with icmp-admin-prohibited
+
+ qos_iface_add "$ifname"
+
+ append SPLASH_INTERFACES "$ifname"
+}
+
+iface_del() {
+ config_get zone "$1" zone
+ [ -n "$zone" ] || return 0
+
+ while iptables -t nat -D prerouting_${zone} -j luci_splash_prerouting 2>&-; do :; done
+
+ config_get net "$1" network
+ [ -n "$net" ] || return 0
+
+ config_get ifname "$net" ifname
+ [ -n "$ifname" ] || return 0
+
+ qos_iface_del "$ifname"
}
blacklist_add() {
local cfg="$1"
config_get mac "$cfg" mac
- [ -n "$mac" ] && iptables -t nat -A luci_splash_portal -m mac --mac-source "$mac" -j DROP
+ [ -n "$mac" ] && {
+ iptables -t filter -I luci_splash_filter -m mac --mac-source "$mac" -j DROP
+ iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j DROP
+ }
}
whitelist_add() {
local cfg="$1"
config_get mac "$cfg" mac
- [ -n "$mac" ] && iptables -t nat -A luci_splash_portal -m mac --mac-source "$mac" -j RETURN
+ [ -n "$mac" ] && {
+ iptables -t filter -I luci_splash_filter -m mac --mac-source "$mac" -j RETURN
+ iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j RETURN
+ }
+}
+
+lease_add() {
+ local cfg="$1"
+
+ config_get mac "$cfg" mac
+ config_get ban "$cfg" kicked
+
+ ban=${ban:+DROP}
+
+ [ -n "$mac" ] && {
+ local oIFS="$IFS"; IFS=":"
+ set -- $mac
+ IFS="$oIFS"; unset oIFS
+
+ local mac_pre="$1$2"
+ local mac_post="$3$4$5$6"
+ local handle="$6"
+
+ iptables -t filter -I luci_splash_filter -m mac --mac-source "$mac" -j RETURN
+ iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j "${ban:-RETURN}"
+
+ [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
+ iptables -t mangle -I luci_splash_mark -m mac --mac-source "$mac" -j MARK --set-mark 79
+
+ for i in $SPLASH_INTERFACES; do
+ tc filter add dev $i parent 77:0 protocol ip prio 2 handle ::$handle u32 \
+ match u16 0x0800 0xFFFF at -2 match u32 0x$mac_post 0xFFFFFFFF at -12 \
+ match u16 0x$mac_pre 0xFFFF at -14 flowid 77:10
+ done
+ }
+ }
+}
+
+subnet_add() {
+ local cfg="$1"
+
+ config_get ipaddr "$cfg" ipaddr
+ config_get netmask "$cfg" netmask
+
+ [ -n "$ipaddr" ] && {
+ iptables -t filter -I luci_splash_filter -d "$ipaddr/${netmask:-32}" -j RETURN
+ iptables -t nat -I luci_splash_portal -d "$ipaddr/${netmask:-32}" -j RETURN
+ }
+}
+
+qos_iface_add() {
+ local iface="$1"
+
+ # 77 -> download root qdisc
+ # 78 -> upload root qdisc
+ # 79 -> fwmark
+
+ silent tc qdisc del dev "$iface" root handle 77:
+
+ if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
+ tc qdisc add dev "$iface" root handle 77: htb
+
+ # assume maximum rate of 20.000 kilobit for wlan
+ tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
+
+ # set download limit and burst
+ tc class add dev "$iface" parent 77:1 classid 77:10 htb \
+ rate ${LIMIT_DOWN}kb ceil ${LIMIT_DOWN_BURST}kb prio 2
+
+ tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
+
+ # adding ingress can result in "File exists" if qos-scripts are active
+ silent tc qdisc add dev "$iface" ingress
+
+ # set client upload speed
+ tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
+ handle 79 fw police rate ${LIMIT_UP}kb mtu 6k burst 6k drop
+ fi
+}
+
+qos_iface_del() {
+ local iface="$1"
+
+ silent tc qdisc del dev "$iface" root handle 77:
+ silent tc qdisc del dev "$iface" root handle 78:
+ silent tc filter del dev "$iface" parent ffff: protocol ip prio 1 handle 79 fw
+}
+
+boot() {
+ ### Setup splash-relay
+ uci get lucid.splashr || {
+uci batch <<EOF
+ set lucid.splashr=daemon
+ set lucid.splashr.slave=httpd
+ add_list lucid.splashr.address=8082
+ add_list lucid.splashr.publisher=splashredir
+ set lucid.splashr.enabled=1
+
+ set lucid.splashredir=Redirector
+ set lucid.splashredir.name=Splashd
+ set lucid.splashredir.virtual='/'
+ set lucid.splashredir.physical=':80/luci/splash'
+
+ commit lucid
+EOF
+ }
+
+ ### We are started by the firewall include
+ exit 0
}
start() {
scan_interfaces
config_load luci_splash
+ ### Find QoS limits
+ config_get LIMIT_UP general limit_up
+ config_get LIMIT_DOWN general limit_down
+ config_get LIMIT_DOWN_BURST general limit_down_burst
+
+ LIMIT_UP="${LIMIT_UP:-0}"
+ LIMIT_DOWN="${LIMIT_DOWN:-0}"
+ LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN * 2))}"
+
+ ### Load required modules
+ [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
+ silent insmod cls_fw
+ silent insmod cls_u32
+ silent insmod sch_htb
+ silent insmod sch_ingress
+ }
+
### Create subchains
- iptables -t nat -N luci_splash
- iptables -t nat -N luci_splash_portal
- iptables -t nat -N luci_splash_leases
-
+ iptables -t filter -N luci_splash_filter
+ iptables -t nat -N luci_splash_portal
+ iptables -t nat -N luci_splash_leases
+ iptables -t nat -N luci_splash_prerouting
+
+ [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && \
+ iptables -t mangle -N luci_splash_mark
+
### Build the main and portal rule
+ config_foreach iface_add iface
+ config_foreach subnet_add subnet
config_foreach blacklist_add blacklist
config_foreach whitelist_add whitelist
- config_foreach iface_add iface
+ config_foreach lease_add lease
### Build the portal rule
+ iptables -t filter -I INPUT -j luci_splash_filter
+ iptables -t filter -I FORWARD -j luci_splash_filter
+
+ [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && \
+ iptables -t mangle -I PREROUTING -j luci_splash_mark
+
+ ### Allow icmp, dns and traceroute
+ iptables -t nat -A luci_splash_portal -p udp --dport 33434:33523 -j RETURN
+ iptables -t nat -A luci_splash_portal -p icmp -j RETURN
iptables -t nat -A luci_splash_portal -p udp --dport 53 -j RETURN
+
+ ### Redirect the rest into the lease chain
iptables -t nat -A luci_splash_portal -j luci_splash_leases
### Build the leases rule
iptables -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
- iptables -t nat -A luci_splash_leases -j DROP
-
- ### Start the splash httpd
- httpd -c /etc/luci_splash_httpd.conf -p 8082 -h /usr/lib/luci-splash/htdocs
- ### Hook in the chain
- iptables -t nat -A prerouting_rule -j luci_splash
+ ### Add crontab entry
+ test -f /etc/crontabs/root || touch /etc/crontabs/root
+ grep -q luci-splash /etc/crontabs/root || {
+ echo '*/5 * * * * /usr/sbin/luci-splash sync' >> /etc/crontabs/root
+ }
}
stop() {
- ### Hook out the chain
- iptables -t nat -D prerouting_rule -j luci_splash
-
+ ### Clear interface rules
+ include /lib/network
+ scan_interfaces
+ config_load luci_splash
+ config_foreach iface_del iface
+
+ silent iptables -t filter -D INPUT -j luci_splash_filter
+ silent iptables -t filter -D FORWARD -j luci_splash_filter
+ silent iptables -t mangle -D PREROUTING -j luci_splash_mark
+
### Clear subchains
- iptables -t nat -F luci_splash_leases
- iptables -t nat -F luci_splash_portal
- iptables -t nat -F luci_splash
+ silent iptables -t nat -F luci_splash_leases
+ silent iptables -t nat -F luci_splash_portal
+ silent iptables -t nat -F luci_splash_prerouting
+ silent iptables -t filter -F luci_splash_filter
+ silent iptables -t mangle -F luci_splash_mark
### Delete subchains
- iptables -t nat -X luci_splash_leases
- iptables -t nat -X luci_splash_portal
- iptables -t nat -X luci_splash
+ silent iptables -t nat -X luci_splash_leases
+ silent iptables -t nat -X luci_splash_portal
+ silent iptables -t nat -X luci_splash_prerouting
+ silent iptables -t filter -X luci_splash_filter
+ silent iptables -t mangle -X luci_splash_mark
+
+ sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
+}
+
+
+clear_leases() {
+ stop
+ while uci -P /var/state del luci_splash.@lease[0] 2>&-;do :; done
+ start
}