#!/bin/sh /etc/rc.common
+
START=70
EXTRA_COMMANDS=clear_leases
-SPLASH_INTERFACES=""
LIMIT_DOWN=0
LIMIT_DOWN_BURST=0
LIMIT_UP=0
+TC=/usr/sbin/tc
+IPT=/usr/sbin/iptables
+IPT6=/usr/sbin/ip6tables
+
+IPT_REPLAY=/var/run/luci_splash.iptlog
+LOCK=/var/run/luci_splash.lock
+[ -x $IPT6 ] && [ -f /proc/net/ipv6_route ] && HAS_IPV6=1
silent() {
"$@" 2>/dev/null
}
+ipt_log() {
+ $IPT -I "$@"
+ echo $IPT -D "$@" >> $IPT_REPLAY
+}
+
+ipt6_log() {
+ [ "$HAS_IPV6" = 1 ] || return
+ $IPT6 -I "$@"
+ echo $IPT6 -D "$@" >> $IPT_REPLAY
+}
+
+
iface_add() {
local cfg="$1"
-
+
config_get zone "$cfg" zone
[ -n "$zone" ] || return 0
-
+
config_get net "$cfg" network
[ -n "$net" ] || return 0
config_get ifname "$net" ifname
[ -n "$ifname" ] || return 0
-
+
config_get ipaddr "$net" ipaddr
[ -n "$ipaddr" ] || return 0
-
+
config_get netmask "$net" netmask
[ -n "$netmask" ] || return 0
-
+
+ config_get ip6addr "$net" ip6addr
+
+ config_get type "$net" type
+
+ parentiface="$(uci -q get network.${net}.ifname)"
+
+ [ -n "$parentiface" ] && [ ! "$type" = "bridge" ] && {
+ parentiface=${parentiface#@}
+ config_get parentproto "$parentiface" proto
+ config_get parentipaddr "$parentiface" ipaddr
+ config_get parentnetmask "$parentiface" netmask
+ }
+
eval "$(ipcalc.sh $ipaddr $netmask)"
- iptables -t nat -A prerouting_${zone} -j luci_splash_prerouting
- iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -p ! tcp -j luci_splash_portal
- iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -d ! "$ipaddr" -j luci_splash_portal
- iptables -t nat -A luci_splash_prerouting -s "$NETWORK/$PREFIX" -d "$ipaddr" -p tcp -m multiport ! --dport 22,80,443 -j luci_splash_portal
+ logger -s -p info -t splash "Add $NETWORK/$PREFIX ($ifname) to splashed networks."
+
+ ### Add interface specific chain entry rules
+ ipt_log "prerouting_${zone}_rule" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_prerouting -t nat
+ ipt_log "forwarding_${zone}_rule" -i "${ifname%:*}" -s "$NETWORK/$PREFIX" -j luci_splash_forwarding -t filter
+
+ if [ "$HAS_IPV6" = 1 ] && [ -n "$ip6addr" ]; then
+ ipt6_log "forwarding_${zone}_rule" -i "${ifname%:*}" -s "$ip6addr" -j luci_splash_forwarding -t filter
+ fi
+
+ ### Allow traffic to the same subnet
+ $IPT -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
+ $IPT -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
- qos_iface_add "$ifname"
+ ### Allow traffic to the mesh subnet
+ [ "$parentproto" = "static" -a -n "$parentipaddr" ] && {
+ $IPT -t nat -I luci_splash_prerouting -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
+ $IPT -t filter -I luci_splash_forwarding -d "$parentipaddr/${parentnetmask:-32}" -j RETURN
+ }
- append SPLASH_INTERFACES "$ifname"
+ qos_iface_add "$ifname" "$NETWORK" "$PREFIX"
}
iface_del() {
- config_get zone "$1" zone
+ config_get zone "$1" zone
[ -n "$zone" ] || return 0
- config_get ifname "$1" ifname
+ config_get net "$1" network
+ [ -n "$net" ] || return 0
+
+ config_get ifname "$net" ifname
[ -n "$ifname" ] || return 0
- while iptables -t nat -D prerouting_${zone} -j luci_splash_prerouting 2>&-; do :; done
+ # Clear interface specific rules
+ [ -s $IPT_REPLAY ] && {
+ logger -s -p info -t splash "Remove $ifname from splashed networks."
+ grep -- "-i ${ifname%:*}" $IPT_REPLAY | while read ln; do silent $ln; done
+ sed -ie "/-i ${ifname%:*}/d" $IPT_REPLAY
+ }
qos_iface_del "$ifname"
}
-blacklist_add() {
- local cfg="$1"
-
- config_get mac "$cfg" mac
- [ -n "$mac" ] && {
- iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
- iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j DROP
- }
+mac_add() {
+ config_get mac "$1" mac
+ append MACS "$mac"
}
whitelist_add() {
- local cfg="$1"
-
- config_get mac "$cfg" mac
- [ -n "$mac" ] && {
- iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
- iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j RETURN
- }
+ config_get mac "$1" mac
+ iface=$2
+ $TC filter add dev "$iface" parent ffff: protocol ip prio 1 u32 match ether src $mac police pass
+ $TC filter add dev "$iface" parent 1:0 protocol ip prio 1 u32 match ether dst classid 1:1
}
-lease_add() {
+
+subnet_add() {
local cfg="$1"
-
- config_get mac "$cfg" mac
- config_get ban "$cfg" kicked
- ban=${ban:+DROP}
+ config_get ipaddr "$cfg" ipaddr
+ config_get netmask "$cfg" netmask
- [ -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="$6"
-
- iptables -t filter -I luci_splash_counter -m mac --mac-source "$mac" -j RETURN
- iptables -t mangle -I luci_splash_mark -m mac --mac-source "$mac" -j MARK --set-mark 79
- iptables -t nat -I luci_splash_leases -m mac --mac-source "$mac" -j "${ban:-RETURN}"
-
- 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
+ [ -n "$ipaddr" ] && {
+ $IPT -t nat -I luci_splash_prerouting -d "$ipaddr/${netmask:-32}" -j RETURN
+ $IPT -t filter -I luci_splash_forwarding -d "$ipaddr/${netmask:-32}" -j RETURN
}
}
qos_iface_add() {
local iface="$1"
+ local network="$2"
+ local prefix="$3"
- # 77 -> download root qdisc
- # 78 -> upload root qdisc
- # 79 -> fwmark
+ # 77 -> download root qdisc
+ # ffff -> upload root qdisc
- silent tc qdisc del dev "$iface" root handle 77:
+ silent $TC qdisc del dev "$iface" root handle 1:
+ silent $TC class del dev "$iface" parent 1: classid 1:ffff
+ silent $TC class del dev "$iface" parent 1: classid 1:1
+ silent $TC filter del dev "$iface" parent ffff: protocol ip prio 1 u32
+ silent $TC filter del dev "$iface" parent ffff: protocol ip prio 2 u32
+ silent $TC filter del dev "$iface" parent ffff: protocol ip prio 3 u32
if [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ]; then
- tc qdisc add dev "$iface" root handle 77: htb
+ # Setup qdiscs
+ $TC qdisc add dev "$iface" root handle 1: htb default 1
+ silent $TC qdisc add dev "$iface" ingress
- # assume maximum rate of 20.000 kilobit for wlan
- tc class add dev "$iface" parent 77: classid 77:1 htb rate 20000kbit
+ # Default class - all clients which are not otherwise handled are put in that class
+ # and share that bandwidth.
+ $TC class add dev "$iface" parent 1: classid 1:ffff htb rate ${LIMIT_DOWN}kbit
- # set download limit and burst
- tc class add dev "$iface" parent 77:1 classid 77:10 htb \
- rate ${LIMIT_DOWN}kbit ceil ${LIMIT_DOWN_BURST}kbit prio 2
+ # default class and class for whitelisted clients = unlimited
+ $TC class add dev "$iface" parent 1: classid 1:1 htb rate 100mbit
- tc qdisc add dev "$iface" parent 77:10 handle 78: sfq perturb 10
+ # All traffic to the dhcp subnet is put into the limited class
+ $TC filter add dev "$iface" parent 1:0 protocol ip prio 3 u32 match ip dst $network/$prefix classid 1:ffff
+ $TC qdisc add dev "$iface" parent 1:ffff sfq perturb 10
+ $TC filter add dev "$iface" parent ffff: protocol ip prio 3 u32 match ip src $network/$prefix police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
- # adding ingress can result in "File exists" if qos-scripts are active
- silent tc qdisc add dev "$iface" ingress
+ # classify packets by their iptables MARK set in luci_splash_mark_in (mangle table)
+ # every client gets his own class and so his own bandwidth limit
+ $TC filter add dev "$iface" parent 1:0 protocol ip prio 2 fw
- # set client upload speed
- tc filter add dev "$iface" parent ffff: protocol ip prio 1 \
- handle 79 fw police rate ${LIMIT_UP}kbit mtu 6k burst 6k drop
- fi
+ config_foreach whitelist_add whitelist $iface
+ 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
+ silent $TC qdisc del dev "$iface" root handle 77:
}
boot() {
### Setup splash-relay
- uci get lucid.splashr || {
+ uci get uhttpd.splash 2>/dev/null || {
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
+ set uhttpd.splash=uhttpd
+ set uhttpd.splash.home="/www/cgi-bin/splash/"
+ set uhttpd.splash.interpreter=".sh=/bin/ash"
+ set uhttpd.splash.listen_http="8082"
+ set uhttpd.splash.index_page="splash.sh"
+ set uhttpd.splash.error_page="/splash.sh"
+
+ commit uhttpd
EOF
}
}
start() {
- ### Read chains from config
+ lock $LOCK
+ logger -s -p info -t splash "Starting luci-splash"
include /lib/network
+ . /lib/functions/network.sh
scan_interfaces
config_load luci_splash
-
+
### Find QoS limits
config_get LIMIT_UP general limit_up
config_get LIMIT_DOWN general limit_down
config_get LIMIT_DOWN_BURST general limit_down_burst
- LIMIT_UP="${LIMIT_UP:-0}"
- LIMIT_DOWN="${LIMIT_DOWN:-0}"
- LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN * 2))}"
+ LIMIT_UP="$((8*${LIMIT_UP:-0}))"
+ LIMIT_DOWN="$((8*${LIMIT_DOWN:-0}))"
+ LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:+$((8*$LIMIT_DOWN_BURST))}"
+ LIMIT_DOWN_BURST="${LIMIT_DOWN_BURST:-$(($LIMIT_DOWN / 5 * 6))}"
### Load required modules
- [ "$LIMIT_IP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
+ [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
+ silent insmod act_police
silent insmod cls_fw
- silent insmod cls_route
- silent insmod cls_rsvp
- silent insmod cls_rsvp6
- silent insmod cls_tcindex
silent insmod cls_u32
- silent insmod sch_cbq
- silent insmod sch_csz
- silent insmod sch_dsmark
- silent insmod sch_gred
- silent insmod sch_hfsc
silent insmod sch_htb
+ silent insmod sch_sfq
silent insmod sch_ingress
- silent insmod sch_red
- silent insmod sch_tbf
- silent insmod sch_teql
}
### Create subchains
- iptables -t filter -N luci_splash_counter
- 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
+ $IPT -t nat -N luci_splash_prerouting
+ $IPT -t nat -N luci_splash_leases
+ $IPT -t filter -N luci_splash_forwarding
+ $IPT -t filter -N luci_splash_filter
+
+ if [ "$HAS_IPV6" = 1 ]; then
+ $IPT6 -t filter -N luci_splash_forwarding
+ $IPT6 -t filter -N luci_splash_filter
+ fi
+
+ ### Clear iptables replay log
+ [ -s $IPT_REPLAY ] && . $IPT_REPLAY
+ echo -n > $IPT_REPLAY
+
+ ### Add interface independant prerouting rules
+ $IPT -t nat -A luci_splash_prerouting -j luci_splash_leases
+ $IPT -t nat -A luci_splash_leases -p udp --dport 53 -j REDIRECT --to-ports 53
+ $IPT -t nat -A luci_splash_leases -p tcp --dport 80 -j REDIRECT --to-ports 8082
+
+ ### Add interface independant forwarding rules
+ $IPT -t filter -A luci_splash_forwarding -j luci_splash_filter
+ $IPT -t filter -A luci_splash_filter -p tcp -j REJECT --reject-with tcp-reset
+ $IPT -t filter -A luci_splash_filter -j REJECT --reject-with icmp-net-prohibited
+
+ if [ "$HAS_IPV6" = 1 ]; then
+ $IPT6 -t filter -A luci_splash_forwarding -j luci_splash_filter
+ $IPT6 -t filter -A luci_splash_filter -p tcp -j REJECT --reject-with tcp-reset
+ $IPT6 -t filter -A luci_splash_filter -j REJECT --reject-with adm-prohibited
+ fi
+
+ ### Add QoS chain
+ $IPT -t mangle -N luci_splash_mark_out
+ $IPT -t mangle -N luci_splash_mark_in
+ $IPT -t mangle -I PREROUTING -j luci_splash_mark_out
+ $IPT -t mangle -I POSTROUTING -j luci_splash_mark_in
+
+ if [ "$HAS_IPV6" = 1 ]; then
+ $IPT6 -t mangle -N luci_splash_mark_out
+ $IPT6 -t mangle -N luci_splash_mark_in
+ $IPT6 -t mangle -I PREROUTING -j luci_splash_mark_out
+ $IPT6 -t mangle -I POSTROUTING -j luci_splash_mark_in
+ fi
### Build the main and portal rule
config_foreach iface_add iface
- config_foreach blacklist_add blacklist
- config_foreach whitelist_add whitelist
- config_foreach lease_add lease
-
- ### Build the portal rule
- iptables -t filter -I INPUT -j luci_splash_counter
- iptables -t filter -I FORWARD -j luci_splash_counter
+ config_foreach subnet_add subnet
+
+ ### Find active mac addresses
+ MACS=""
- [ "$LIMIT_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && \
- iptables -t mangle -I PREROUTING -j luci_splash_mark
-
- 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
- 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
+ config_foreach mac_add blacklist
+ config_foreach mac_add whitelist
+
+ #config_load luci_splash_leases
+ config_foreach mac_add lease
+
### 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
}
+
+ lock -u $LOCK
+
+ ### Populate iptables
+ [ -n "$MACS" ] && luci-splash add-rules $MACS
}
stop() {
- ### Clear interface rules
+ lock $LOCK
+
+ include /lib/network
+ scan_interfaces
config_load luci_splash
+
+ ### Clear interface rules
config_foreach iface_del iface
- silent iptables -t filter -D INPUT -j luci_splash_counter
- silent iptables -t filter -D FORWARD -j luci_splash_counter
- silent iptables -t mangle -D PREROUTING -j luci_splash_mark
-
+ silent $IPT -t mangle -D PREROUTING -j luci_splash_mark_out
+ silent $IPT -t mangle -D POSTROUTING -j luci_splash_mark_in
+
+ if [ "$HAS_IPV6" = 1 ]; then
+ silent $IPT6 -t mangle -D PREROUTING -j luci_splash_mark_out
+ silent $IPT6 -t mangle -D POSTROUTING -j luci_splash_mark_in
+ fi
+
### Clear subchains
- 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_counter
- silent iptables -t mangle -F luci_splash_mark
-
+ silent $IPT -t nat -F luci_splash_prerouting
+ silent $IPT -t nat -F luci_splash_leases
+ silent $IPT -t filter -F luci_splash_forwarding
+ silent $IPT -t filter -F luci_splash_filter
+ silent $IPT -t mangle -F luci_splash_mark_out
+ silent $IPT -t mangle -F luci_splash_mark_in
+
+ if [ "$HAS_IPV6" = 1 ]; then
+ $IPT6 -t filter -F luci_splash_forwarding
+ $IPT6 -t filter -F luci_splash_filter
+ $IPT6 -t mangle -F luci_splash_mark_out
+ $IPT6 -t mangle -F luci_splash_mark_in
+ fi
+
### Delete subchains
- 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_counter
- silent iptables -t mangle -X luci_splash_mark
-
+ silent $IPT -t nat -X luci_splash_prerouting
+ silent $IPT -t nat -X luci_splash_leases
+ silent $IPT -t filter -X luci_splash_forwarding
+ silent $IPT -t filter -X luci_splash_filter
+ silent $IPT -t mangle -X luci_splash_mark_out
+ silent $IPT -t mangle -X luci_splash_mark_in
+ if [ "$HAS_IPV6" = 1 ]; then
+ $IPT6 -t filter -X luci_splash_forwarding
+ $IPT6 -t filter -X luci_splash_filter
+ $IPT6 -t mangle -X luci_splash_mark_out
+ $IPT6 -t mangle -X luci_splash_mark_in
+ fi
sed -ie '/\/usr\/sbin\/luci-splash sync/d' /var/spool/cron/crontabs/root
+
+ lock -u $LOCK
}
-
clear_leases() {
- stop
- while uci -P /var/state del luci_splash.@lease[0] 2>&-;do :; done
- start
+ ### Find active mac addresses
+ MACS=""
+ config_foreach mac_add lease
+
+ ### Clear leases
+ [ -n "$MACS" ] && luci-splash remove $MACS
}
projects / project / luci.git / blobdiff