+++ /dev/null
-#!/bin/sh /etc/rc.common
-
-START=70
-EXTRA_COMMANDS=clear_leases
-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)"
-
- 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/${netmask:-32}" -j RETURN
-
- ### Allow traffic to the mesh subnet
- [ "$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/${parentnetmask:-32}" -j RETURN
- }
-
- qos_iface_add "$ifname" "$NETWORK" "$PREFIX"
-}
-
-iface_del() {
- config_get zone "$1" zone
- [ -n "$zone" ] || return 0
-
- config_get net "$1" network
- [ -n "$net" ] || return 0
-
- config_get ifname "$net" ifname
- [ -n "$ifname" ] || return 0
-
- # 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"
-}
-
-mac_add() {
- config_get mac "$1" mac
- append MACS "$mac"
-}
-
-whitelist_add() {
- 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 $mac classid 1:1
-}
-
-
-subnet_add() {
- local cfg="$1"
-
- config_get ipaddr "$cfg" ipaddr
- config_get netmask "$cfg" netmask
-
- [ -n "$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
- # ffff -> upload root qdisc
-
- 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
- # Setup qdiscs
- $TC qdisc add dev "$iface" root handle 1: htb default 1
- silent $TC qdisc add dev "$iface" ingress
-
- # 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
-
- # default class and class for whitelisted clients = unlimited
- $TC class add dev "$iface" parent 1: classid 1:1 htb rate 100mbit
-
- # 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
-
- # 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
-
- config_foreach whitelist_add whitelist $iface
- fi
-}
-
-qos_iface_del() {
- local iface="$1"
- silent $TC qdisc del dev "$iface" root handle 77:
-}
-
-boot() {
- ### Setup splash-relay
- uci get uhttpd.splash 2>/dev/null || {
-uci batch <<EOF
- 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"
- set uhttpd.splash.http_keepalive='0'
- commit uhttpd
-EOF
- }
-
- ### We are started by the firewall include
- exit 0
-}
-
-start() {
- lock $LOCK
- logger -s -p info -t splash "Starting luci-splash"
- include /lib/network
- . /lib/functions/network.sh
- scan_interfaces
- config_load luci_splash
-
- ### Find QoS limits
- config_get LIMIT_UP general limit_up
- config_get LIMIT_DOWN general limit_down
- config_get LIMIT_DOWN_BURST general limit_down_burst
-
- LIMIT_UP="$((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_UP" -gt 0 -a "$LIMIT_DOWN" -gt 0 ] && {
- silent insmod act_police
- silent insmod cls_fw
- silent insmod cls_u32
- silent insmod sch_htb
- silent insmod sch_sfq
- silent insmod sch_ingress
- }
-
- ### Create subchains
- $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
- $IPT6 -t mangle -I POSTROUTING -j luci_splash_mark_in
- fi
-
- ### Build the main and portal rule
- config_foreach iface_add iface
- config_foreach subnet_add subnet
-
- ### Add the community homepage to the list of allowed destination subnets
- hp=$(uci -q get freifunk.community.homepage) && {
- chp=${hp#http*://}
- chp=${chp%%/*}
- $IPT -t nat -I luci_splash_prerouting -d "${chp}/32" -j RETURN
- $IPT -t filter -I luci_splash_forwarding -d "${chp}/32" -j RETURN
- }
-
- ### Find active mac addresses
- MACS=""
-
-
- 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() {
- lock $LOCK
-
- include /lib/network
- scan_interfaces
- config_load luci_splash
-
- ### Clear interface rules
- config_foreach iface_del iface
-
- 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 $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 $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 $LOCK
-}
-
-clear_leases() {
- ### Find active mac addresses
- MACS=""
- config_foreach mac_add lease
-
- ### Clear leases
- [ -n "$MACS" ] && luci-splash remove $MACS
-}
-
projects / project / luci.git / blobdiff