contrib/package/freifunk-policyrouting/files/etc/init.d/freifunk-policyrouting

   1 #!/bin/sh /etc/rc.common
   2
   3 START=15
   4 . /lib/functions/network.sh
   5 . /lib/functions.sh
   6
   7 proto="4"
   8 [ -f /proc/net/ipv6_route ] && proto="4 6"
   9
  10 config_load freifunk-policyrouting
  11 config_get enable pr enable
  12 config_get fallback pr fallback
  13 config_get zones pr zones
  14
  15 olsrd_rmtables() {
  16         # Remove custom routing tables from olsrd
  17         if [ "`uci -q get olsrd.@olsrd[0].RtTable`" == "111" ] || [ "`uci -q get olsrd.@olsrd[0].RtTableDefault`" == "112" ]; then
  18                 uci delete olsrd.@olsrd[0].RtTable
  19                 uci delete olsrd.@olsrd[0].RtTableDefault
  20                 uci commit
  21         fi
  22 }
  23
  24 olsrd_intalltables() {
  25         if [ ! "`uci -q get olsrd.@olsrd[0].RtTable`" == "111" ] || [ ! "`uci -q get olsrd.@olsrd[0].RtTableDefault`" == "112" ]; then
  26                 uci set olsrd.@olsrd[0].RtTable='111'
  27                 uci set olsrd.@olsrd[0].RtTableDefault='112'
  28                 uci commit olsrd
  29                 /etc/init.d/olsrd restart 2&> /dev/null
  30         fi
  31 }
  32
  33 rt_tables() {
  34         tables="/etc/iproute2/rt_tables"
  35         if [ -z "`grep "110" $tables`" ]; then
  36                 echo "110 localnets" >> $tables
  37         fi
  38         if [ -z "`grep "111" $tables`" ]; then
  39                 echo "111 olsr" >> $tables
  40         fi
  41         if [ -z "`grep "112" $tables`" ]; then
  42                 echo "112 olsr-default" >> $tables
  43         fi
  44
  45 }
  46
  47 disable_dyngw() {
  48         dyngwlib=`uci show olsrd |grep dyn_gw.so |awk {' FS="."; print $1"."$2 '}`
  49         if [ -n "$dyngwlib" ]; then
  50                 uci set $dyngwlib.ignore=1
  51                 uci commit olsrd
  52         fi
  53
  54         dyngwplainlib=`uci show olsrd |grep dyn_gw_plain |awk {' FS="."; print $1"."$2 '}`
  55         if [ -n "$dyngwplainlib" ]; then
  56                 uci set $dyngwplainlib.ignore=1
  57                 uci commit olsrd
  58         fi
  59 }
  60
  61 restart_services() {
  62         logger -s -t policyrouting -p info "Restarting services"
  63         /etc/init.d/network restart 2&> /dev/null
  64         /etc/init.d/olsrd restart 2&> /dev/null
  65 }
  66
  67 boot() {
  68         if [ "$enable" = "1" ]; then
  69                 [ -d /var/state ] || mkdir -p /var/state
  70                 touch /var/state/freifunk-policyrouting
  71                 start noservicerestart
  72         else
  73                 olsrd_rmtables
  74         fi
  75 }
  76
  77 add_lookup_rule() {
  78         name=${1/-/_}
  79         lookup=$2
  80         prio=$3
  81
  82         if [ -z "$name" -o -z "$lookup" -o -z "$prio" ]; then
  83                 logger -s -t policyrouting "Missing parameters for add_rule!"
  84         else
  85                 for p in $proto; do
  86                         if [ "$p" = "6" ]; then
  87                                 rule="rule6"
  88                         else
  89                                 rule="rule"
  90                         fi
  91
  92                         uci batch <<- EOF
  93                                 set network.${name}ipv${p}="$rule"
  94                                 set network.${name}ipv${p}.lookup="$lookup"
  95                                 set network.${name}ipv${p}.priority="$prio"
  96                         EOF
  97                 done
  98         fi
  99 }
 100
 101 del_lookup_rule() {
 102         name=${1/-/_}
 103         for p in $proto; do
 104                 uci -q delete network.${name}ipv${p}
 105         done
 106 }
 107
 108 start() {
 109         if [ $enable = "1" ]; then
 110                 logger -s -t policyrouting "Starting policy routing."
 111                 rt_tables
 112                 olsrd_intalltables
 113                 disable_dyngw
 114
 115                 add_lookup_rule olsr olsr 1000
 116                 add_lookup_rule localnets localnets 2000
 117
 118                 if [ "$fallback" = 1 ]; then
 119                         add_lookup_rule olsr-default olsr-default 100000
 120                 fi
 121         fi
 122         uci commit network
 123         if [ ! "$1" = "noservicerestart" ]; then
 124                 restart_services
 125         fi
 126 }
 127
 128 stop() {
 129         logger -s -t policyrouting "Stopping policy routing"
 130         olsrd_rmtables
 131         del_lookup_rule olsr-default
 132         del_lookup_rule olsr
 133         del_lookup_rule localnets
 134         uci commit network
 135         restart_services
 136         echo "Hint: To completely disable freifunk-policyrouting set enable=0 in /etc/config/freifunk-policyrouting."
 137 }
 138
 139 restart() {
 140         logger -s -t policyrouting "Restarting policy routing"
 141         olsrd_rmtables
 142         del_lookup_rule olsr-default
 143         del_lookup_rule olsr
 144         del_lookup_rule localnets
 145         uci commit network
 146         start
 147 }