net/mwan3/files/usr/sbin/mwan3

   1 #!/bin/sh
   2 . /lib/functions.sh
   3
   4 IP="/usr/sbin/ip -4"
   5 IPT="/usr/sbin/iptables -t mangle -w"
   6
   7 help()
   8 {
   9         cat <<EOF
  10 Syntax: mwan3 [command]
  11
  12 Available commands:
  13         start           Load iptables rules, ip rules and ip routes
  14         stop            Unload iptables rules, ip rules and ip routes
  15         restart         Reload iptables rules, ip rules and ip routes
  16         ifup <iface>    Load rules and routes for specific interface
  17         ifdown <iface>  Unload rules and routes for specific interface
  18         interfaces      Show interfaces status
  19         policies        Show policies status
  20         rules           Show rules status
  21         status          Show all status
  22
  23 EOF
  24 }
  25
  26 ifdown()
  27 {
  28         if [ -z "$1" ]; then
  29                 echo "Error: Expecting interface. Usage: mwan3 ifdown <interface>" && exit 0
  30         fi
  31
  32         if [ -n "$2" ]; then
  33                 echo "Error: Too many arguments. Usage: mwan3 ifdown <interface>" && exit 0
  34         fi
  35
  36         if [ -e /var/run/mwan3track-$1.pid ] ; then
  37                 kill $(cat /var/run/mwan3track-$1.pid)
  38                 rm /var/run/mwan3track-$1.pid
  39         fi
  40
  41         ACTION=ifdown INTERFACE=$1 /sbin/hotplug-call iface
  42 }
  43
  44 ifup()
  45 {
  46         local device enabled
  47
  48         config_load mwan3
  49
  50         if [ -z "$1" ]; then
  51                 echo "Expecting interface. Usage: mwan3 ifup <interface>" && exit 0
  52         fi
  53
  54         if [ -n "$2" ]; then
  55                 echo "Too many arguments. Usage: mwan3 ifup <interface>" && exit 0
  56         fi
  57
  58         config_get enabled "$1" enabled 0
  59
  60         device=$(uci get -p /var/state network.$1.ifname) &> /dev/null
  61
  62         if [ -n "$device" ] ; then
  63                 [ "$enabled" -eq 1 ] && ACTION=ifup INTERFACE=$1 DEVICE=$device /sbin/hotplug-call iface
  64         fi
  65 }
  66
  67 interfaces()
  68 {
  69         local device enabled iface_id tracking
  70
  71         config_load mwan3
  72
  73         echo "Interface status:"
  74
  75         check_iface_status()
  76         {
  77                 let iface_id++
  78                 device=$(uci get -p /var/state network.$1.ifname) &> /dev/null
  79
  80                 if [ -z "$device" ]; then
  81                         echo "Interface $1 is unknown"
  82                         return 0
  83                 fi
  84
  85                 config_get enabled "$1" enabled 0
  86
  87                 if [ -n "$(ps -w | grep mwan3track | grep -v grep | sed '/.*\/usr\/sbin\/mwan3track \([^ ]*\) .*$/!d;s//\1/' | awk '$1 == "'$1'"')" ]; then
  88                         tracking="active"
  89                 else
  90                         tracking="down"
  91                 fi
  92
  93                 if [ -n "$($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 $device 2> /dev/null)" ]; then
  94                         if [ -n "$(uci get -p /var/state mwan3.$1.track_ip 2> /dev/null)" ]; then
  95                                 echo "Interface $1 is online (tracking $tracking)"
  96                         else
  97                                 echo "Interface $1 is online"
  98                         fi
  99                 elif [ -n "$($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
 100                         echo "Interface $1 error"
 101                 else
 102                         if [ "$enabled" -eq 1 ]; then
 103                                 if [ -n "$(uci get -p /var/state mwan3.$1.track_ip 2> /dev/null)" ]; then
 104                                         echo "Interface $1 is offline (tracking $tracking)"
 105                                 else
 106                                         echo "Interface $1 is offline"
 107                                 fi
 108                         else
 109                                 echo "Interface $1 is disabled"
 110                         fi
 111                 fi
 112         }
 113         config_foreach check_iface_status interface
 114         echo -e
 115 }
 116
 117 policies()
 118 {
 119         local percent policy share total_weight weight iface
 120
 121         for policy in $($IPT -S | awk '{print $2}' | grep mwan3_policy_ | sort -u); do
 122                 echo "Policy $policy:" | sed 's/mwan3_policy_//'
 123
 124                 [ -n "$total_weight" ] || total_weight=$($IPT -S $policy | cut -s -d'"' -f2 | head -1 | awk '{print $3}')
 125
 126                 if [ ! -z "${total_weight##*[!0-9]*}" ]; then
 127                         for iface in $($IPT -S $policy | cut -s -d'"' -f2 | awk '{print $1}'); do
 128                                 weight=$($IPT -S $policy | cut -s -d'"' -f2 | awk '$1 == "'$iface'"' | awk '{print $2}')
 129                                 percent=$(($weight*100/$total_weight))
 130                                 echo " $iface ($percent%)"
 131                         done
 132                 else
 133                         echo " $($IPT -S $policy | sed '/.*--comment \([^ ]*\) .*$/!d;s//\1/;q')"
 134                 fi
 135
 136                 echo -e
 137
 138                 unset iface
 139                 unset total_weight
 140         done
 141 }
 142 rules()
 143 {
 144         if [ -n "$($IPT -S mwan3_connected 2> /dev/null)" ]; then
 145                 echo "Known networks:"
 146                 echo "destination policy hits" | awk '{ printf "%-19s%-19s%-9s%s\n",$1,$2,$3}' | awk '1; {gsub(".","-")}1'
 147                 $IPT -L mwan3_connected -n -v 2> /dev/null | tail -n+3 | sed 's/mark.*//' | sed 's/mwan3_policy_//' | awk '{printf "%-19s%-19s%-9s%s\n",$9,"default",$1}'
 148                 echo -e
 149         fi
 150
 151         if [ -n "$($IPT -S mwan3_rules 2> /dev/null)" ]; then
 152                 echo "Active rules:"
 153                 echo "source destination proto src-port dest-port policy hits" | awk '{ printf "%-19s%-19s%-7s%-14s%-14s%-16s%-9s%s\n",$1,$2,$3,$4,$5,$6,$7}' | awk '1; {gsub(".","-")}1'
 154                 $IPT -L mwan3_rules -n -v 2> /dev/null | tail -n+3 | sed 's/mark.*//' | sed 's/mwan3_policy_//' | awk '{ printf "%-19s%-19s%-7s%-14s%-14s%-16s%-9s%s\n",$8,$9,$4,$12,$15,$3,$1}'
 155                 echo -e
 156         fi
 157 }
 158
 159 status()
 160 {
 161         interfaces
 162         policies
 163         rules
 164 }
 165
 166 start()
 167 {
 168         config_load mwan3
 169         config_foreach ifup interface
 170 }
 171
 172 stop()
 173 {
 174         local route rule table
 175
 176         killall mwan3track &> /dev/null
 177         rm /var/run/mwan3track-* &> /dev/null
 178
 179         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
 180                 $IP route flush table $route &> /dev/null
 181         done
 182
 183         for rule in $($IP rule list | egrep '^[1-2][0-9]{3}\:' | cut -d ':' -f 1); do
 184                 $IP rule del pref $rule &> /dev/null
 185         done
 186
 187         $IPT -D PREROUTING -j mwan3_hook &> /dev/null
 188         $IPT -D OUTPUT -j mwan3_hook &> /dev/null
 189         $IPT -D OUTPUT -j mwan3_output_hook &> /dev/null
 190
 191         for table in $($IPT -S | awk '{print $2}' | grep mwan3 | sort -u); do
 192                 $IPT -F $table &> /dev/null
 193         done
 194
 195         for table in $($IPT -S | awk '{print $2}' | grep mwan3 | sort -u); do
 196                 $IPT -X $table &> /dev/null
 197         done
 198 }
 199
 200 restart() {
 201         stop
 202         start
 203 }
 204
 205 case "$1" in
 206         ifup|ifdown|interfaces|policies|rules|status|start|stop|restart)
 207                 $*
 208         ;;
 209         *)
 210                 help
 211         ;;
 212 esac
 213
 214 exit 0