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                 rttable="$(uci -q get $dyngwplainlib.RtTable)"
  57                 if [ -z "$rttable" ] || [ "$rttable" = "254" ]; then
  58                         uci set $dyngwplainlib.ignore=1
  59                         uci commit olsrd
  60                 fi
  61         fi
  62 }
  63
  64 restart_services() {
  65         logger -s -t policyrouting -p info "Restarting services"
  66         /etc/init.d/network restart 2&> /dev/null
  67         /etc/init.d/olsrd restart 2&> /dev/null
  68 }
  69
  70 boot() {
  71         if [ "$enable" = "1" ]; then
  72                 [ -d /var/state ] || mkdir -p /var/state
  73                 touch /var/state/freifunk-policyrouting
  74                 start noservicerestart
  75         else
  76                 olsrd_rmtables
  77         fi
  78 }
  79
  80 add_lookup_rule() {
  81         name=${1/-/_}
  82         lookup=$2
  83         prio=$3
  84
  85         if [ -z "$name" -o -z "$lookup" -o -z "$prio" ]; then
  86                 logger -s -t policyrouting "Missing parameters for add_rule!"
  87         else
  88                 for p in $proto; do
  89                         if [ "$p" = "6" ]; then
  90                                 rule="rule6"
  91                         else
  92                                 rule="rule"
  93                         fi
  94
  95                         uci batch <<- EOF
  96                                 set network.${name}ipv${p}="$rule"
  97                                 set network.${name}ipv${p}.lookup="$lookup"
  98                                 set network.${name}ipv${p}.priority="$prio"
  99                         EOF
 100                 done
 101         fi
 102 }
 103
 104 del_lookup_rule() {
 105         name=${1/-/_}
 106         for p in $proto; do
 107                 uci -q delete network.${name}ipv${p}
 108         done
 109 }
 110
 111 start() {
 112         if [ $enable = "1" ]; then
 113                 logger -s -t policyrouting "Starting policy routing."
 114                 rt_tables
 115                 olsrd_intalltables
 116                 disable_dyngw
 117
 118                 add_lookup_rule olsr olsr 1000
 119                 add_lookup_rule localnets localnets 2000
 120
 121                 if [ "$fallback" = 1 ]; then
 122                         add_lookup_rule olsr-default olsr-default 100000
 123                 fi
 124         fi
 125         uci commit network
 126         if [ ! "$1" = "noservicerestart" ]; then
 127                 restart_services
 128         fi
 129 }
 130
 131 stop() {
 132         logger -s -t policyrouting "Stopping policy routing"
 133         olsrd_rmtables
 134         del_lookup_rule olsr-default
 135         del_lookup_rule olsr
 136         del_lookup_rule localnets
 137         uci commit network
 138         restart_services
 139         echo "Hint: To completely disable freifunk-policyrouting set enable=0 in /etc/config/freifunk-policyrouting."
 140 }
 141
 142 restart() {
 143         logger -s -t policyrouting "Restarting policy routing"
 144         olsrd_rmtables
 145         del_lookup_rule olsr-default
 146         del_lookup_rule olsr
 147         del_lookup_rule localnets
 148         uci commit network
 149         start
 150 }