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220 lines
5.2 KiB
220 lines
5.2 KiB
#!/bin/sh
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. /lib/functions.sh
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IP="/usr/sbin/ip -4"
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IPS="/usr/sbin/ipset"
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IPT="/usr/sbin/iptables -t mangle -w"
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help()
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{
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cat <<EOF
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Syntax: mwan3 [command]
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Available commands:
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start Load iptables rules, ip rules and ip routes
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stop Unload iptables rules, ip rules and ip routes
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restart Reload iptables rules, ip rules and ip routes
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ifup <iface> Load rules and routes for specific interface
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ifdown <iface> Unload rules and routes for specific interface
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interfaces Show interfaces status
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policies Show policies status
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rules Show rules status
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status Show all status
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EOF
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}
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ifdown()
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{
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if [ -z "$1" ]; then
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echo "Error: Expecting interface. Usage: mwan3 ifdown <interface>" && exit 0
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fi
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if [ -n "$2" ]; then
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echo "Error: Too many arguments. Usage: mwan3 ifdown <interface>" && exit 0
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fi
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if [ -e /var/run/mwan3track-$1.pid ] ; then
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kill $(cat /var/run/mwan3track-$1.pid)
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rm /var/run/mwan3track-$1.pid
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fi
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ACTION=ifdown INTERFACE=$1 /sbin/hotplug-call iface
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}
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ifup()
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{
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local device enabled
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config_load mwan3
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if [ -z "$1" ]; then
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echo "Expecting interface. Usage: mwan3 ifup <interface>" && exit 0
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fi
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if [ -n "$2" ]; then
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echo "Too many arguments. Usage: mwan3 ifup <interface>" && exit 0
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fi
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config_get enabled "$1" enabled 0
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device=$(uci -p /var/state get network.$1.ifname) &> /dev/null
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if [ -n "$device" ] ; then
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[ "$enabled" -eq 1 ] && ACTION=ifup INTERFACE=$1 DEVICE=$device /sbin/hotplug-call iface
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fi
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}
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interfaces()
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{
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local device enabled iface_id tracking
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config_load mwan3
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echo "Interface status:"
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check_iface_status()
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{
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let iface_id++
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device=$(uci -p /var/state get network.$1.ifname) &> /dev/null
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if [ -z "$device" ]; then
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echo " interface $1 is unknown"
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return 0
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fi
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config_get enabled "$1" enabled 0
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if [ -n "$(ps -w | grep mwan3track | grep -v grep | sed '/.*\/usr\/sbin\/mwan3track \([^ ]*\) .*$/!d;s//\1/' | awk '$1 == "'$1'"')" ]; then
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tracking="active"
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else
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tracking="down"
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fi
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if [ -n "$($IP rule | awk '$5 == "'$device'"')" -a -n "$($IPT -S mwan3_iface_$1 2> /dev/null)" -a -n "$($IP route list table $iface_id default dev $device 2> /dev/null)" ]; then
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if [ -n "$(uci -p /var/state get mwan3.$1.track_ip 2> /dev/null)" ]; then
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echo " interface $1 is online (tracking $tracking)"
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else
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echo " interface $1 is online"
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fi
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elif [ -n "$($IP rule | awk '$5 == "'$device'"')" -o -n "$($IPT -S mwan3_iface_$1 2> /dev/null)" -o -n "$($IP route list table $iface_id default dev $device 2> /dev/null)" ]; then
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echo " interface $1 error"
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else
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if [ "$enabled" -eq 1 ]; then
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if [ -n "$(uci -p /var/state get mwan3.$1.track_ip 2> /dev/null)" ]; then
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echo " interface $1 is offline (tracking $tracking)"
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else
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echo " interface $1 is offline"
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fi
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else
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echo " interface $1 is disabled"
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fi
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fi
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}
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config_foreach check_iface_status interface
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echo -e
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}
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policies()
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{
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local percent policy share total_weight weight iface
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for policy in $($IPT -S | awk '{print $2}' | grep mwan3_policy_ | sort -u); do
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echo "Policy $policy:" | sed 's/mwan3_policy_//'
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[ -n "$total_weight" ] || total_weight=$($IPT -S $policy | cut -s -d'"' -f2 | head -1 | awk '{print $3}')
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if [ ! -z "${total_weight##*[!0-9]*}" ]; then
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for iface in $($IPT -S $policy | cut -s -d'"' -f2 | awk '{print $1}'); do
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weight=$($IPT -S $policy | cut -s -d'"' -f2 | awk '$1 == "'$iface'"' | awk '{print $2}')
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percent=$(($weight*100/$total_weight))
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echo " $iface ($percent%)"
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done
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else
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echo " $($IPT -S $policy | sed '/.*--comment \([^ ]*\) .*$/!d;s//\1/;q')"
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fi
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echo -e
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unset iface
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unset total_weight
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done
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}
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rules()
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{
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local address
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if [ -n "$($IPT -S mwan3_connected 2> /dev/null)" ]; then
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echo "Known networks:"
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for address in $($IPS list mwan3_connected | egrep '[0-9]{1,3}(\.[0-9]{1,3}){3}'); do
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echo " $address"
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done
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echo -e
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fi
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if [ -n "$($IPT -S mwan3_rules 2> /dev/null)" ]; then
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echo "Active rules:"
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$IPT -L mwan3_rules -n -v 2> /dev/null | tail -n+3 | sed 's/mark.*//' | sed 's/mwan3_policy_/- /' | sed 's/mwan3_rule_/S /'
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echo -e
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fi
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}
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status()
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{
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interfaces
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policies
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rules
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}
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start()
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{
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config_load mwan3
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config_foreach ifup interface
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}
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stop()
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{
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local ipset route rule table
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killall mwan3track &> /dev/null
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rm /var/run/mwan3track-* &> /dev/null
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for route in $($IP route list table all | sed 's/.*table \([^ ]*\) .*/\1/' | awk '{print $1}' | awk '{for(i=1;i<=NF;i++) if($i+0>0) if($i+0<255) {print;break}}'); do
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$IP route flush table $route &> /dev/null
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done
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for rule in $($IP rule list | egrep '^[1-2][0-9]{3}\:' | cut -d ':' -f 1); do
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$IP rule del pref $rule &> /dev/null
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done
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$IPT -D PREROUTING -j mwan3_hook &> /dev/null
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$IPT -D OUTPUT -j mwan3_hook &> /dev/null
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for table in $($IPT -S | awk '{print $2}' | grep mwan3 | sort -u); do
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$IPT -F $table &> /dev/null
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done
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for table in $($IPT -S | awk '{print $2}' | grep mwan3 | sort -u); do
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$IPT -X $table &> /dev/null
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done
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for ipset in $(ipset -n list | grep mwan3); do
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$IPS destroy $ipset
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done
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}
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restart() {
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stop
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start
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}
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case "$1" in
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ifup|ifdown|interfaces|policies|rules|status|start|stop|restart)
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$*
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;;
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*)
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help
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;;
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esac
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exit 0
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