contrib/package/freifunk-policyrouting/files/etc/hotplug.d/iface/30-policyrouting

   1 [ "$INTERFACE" != "wan" ] && exit 0
   2
   3 case $ACTION in
   4         ifup)
   5                 pr=`uci get freifunk-policyrouting.pr.enable`
   6                 # check if ipv6 is enabled:
   7                 [ -f /proc/net/ipv6_route ] && has_ipv6=1
   8
   9                 if [ $pr = "1" ]; then
  10                         logger -t policyrouting "Starting policy routing on $INTERFACE"
  11
  12                         # Setup new tables
  13                         tables="/etc/iproute2/rt_tables"
  14                         if [ -z "`grep "111" $tables`" ]; then
  15                                 echo "111 olsr" >> $tables
  16                         fi
  17                         if [ -z "`grep "112" $tables`" ]; then
  18                                 echo "112 olsr-default" >> $tables
  19                         fi
  20
  21                         # Make sure Rt_tables in olsrd are in place
  22                         if [ ! "`uci -q get olsrd.@olsrd[0].RtTable`" == "111" ] || [ ! "`uci -q get olsrd.@olsrd[0].RtTableDefault`" == "112" ]; then
  23                                 uci set olsrd.@olsrd[0].RtTable='111'
  24                                 uci set olsrd.@olsrd[0].RtTableDefault='112'
  25                                 uci commit
  26                                 /etc/init.d/olsrd restart
  27                         fi
  28
  29                         # Disable dyn_gw and dyngw_plain
  30                         dyngwlib=`uci show olsrd |grep dyn_gw.so |awk {' FS="."; print $1"."$2 '}`
  31                         if [ -n "$dyngwlib" ]; then
  32                                 uci set $dyngwlib.ignore=1
  33                                 uci commit
  34                         fi
  35
  36                         dyngwplainlib=`uci show olsrd |grep dyn_gw_plain |awk {' FS="."; print $1"."$2 '}`
  37                         if [ -n "$dyngwplainlib" ]; then
  38                                 uci set $dyngwplainlib.ignore=1
  39                                 uci commit
  40                         fi
  41
  42                         gw=`uci -p /var/state get network.wan.gateway`
  43                         netmask=`uci -p /var/state get network.wan.netmask`
  44                         if [ -z "$netmask" ]; then
  45                                 NETMASK="255.255.255.255"
  46                         fi
  47
  48                         if  [ -n "`uci -p /var/state get network.wan.ifname`" ]; then
  49                                 device=`uci -p /var/state get network.wan.ifname`
  50                         else
  51                                 device=`uci -p /var/state get network.wan.device`
  52                         fi
  53
  54                         eval `ipcalc.sh $gw $netmask`
  55
  56                         test -n "`ip r s t default`" && ip r d default t default
  57                         test -n "`ip r s |grep default`" && ip route del default
  58                         ip route add $NETWORK/$NETMASK dev $device table default
  59                         ip route add default via $gw dev $device table default
  60
  61                         ip rule del lookup main
  62                         ip rule add fwmark 1 lookup olsr-default
  63                         ip rule add lookup main
  64                         ip rule add lookup olsr
  65                         if [ "$has_ipv6" = 1 ]; then
  66                                 ip -6 rule del lookup main
  67                                 ip -6 rule add fwmark 1 lookup olsr-default
  68                                 ip -6 rule add lookup main
  69                                 ip -6 rule add lookup olsr
  70                         fi
  71                 else
  72                         # Remove custom routing tables from olsrd
  73                         if [ "`uci -q get olsrd.@olsrd[0].RtTable`" == "111" ] || [ "`uci -q get olsrd.@olsrd[0].RtTableDefault`" == "112" ]; then
  74                                 uci delete olsrd.@olsrd[0].RtTable
  75                                 uci delete olsrd.@olsrd[0].RtTableDefault
  76                                 uci commit
  77                                 /etc/init.d/olsrd restart
  78                         fi
  79                 fi
  80         ;;
  81
  82         ifdown)
  83         logger -t policyrouting "Deleting policy rules for $INTERFACE"
  84         ip rule del fwmark 1 lookup olsr-default > /dev/null 2>&1
  85         ip rule del lookup olsr > /dev/null 2>&1
  86         if [ "$has_ipv6" = 1 ]; then
  87                 ip -6 rule del fwmark 1 lookup olsr-default > /dev/null 2>&1
  88                 ip -6 rule del lookup olsr      > /dev/null 2>&1
  89         fi
  90         ;;
  91 esac