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 [ -f /etc/config/olsrd ] && cfgs="olsrd"
  10 [ -f /etc/config/olsrd6 ] && cfgs="$cfgs olsrd6"
  11
  12 config_load freifunk-policyrouting
  13 config_get enable pr enable
  14 config_get fallback pr fallback
  15 config_get zones pr zones
  16
  17
  18 olsrd_rmtables() {
  19         for cfg in $cfgs; do
  20                 # Remove custom routing tables from olsrd
  21                 if [ "`uci -q get $cfg.@olsrd[0].RtTable`" == "111" ] || [ "`uci -q get $cfg.@olsrd[0].RtTableDefault`" == "112" ]; then
  22                         uci delete $cfg.@olsrd[0].RtTable
  23                         uci delete $cfg.@olsrd[0].RtTableDefault
  24                         uci commit
  25                 fi
  26         done
  27 }
  28
  29 olsrd_intalltables() {
  30         for cfg in $cfgs; do
  31                 if [ ! "`uci -q get $cfg.@olsrd[0].RtTable`" == "111" ] || [ ! "`uci -q get $cfg.@olsrd[0].RtTableDefault`" == "112" ]; then
  32                         uci set $cfg.@olsrd[0].RtTable='111'
  33                         uci set $cfg.@olsrd[0].RtTableDefault='112'
  34                         uci commit $cfg
  35                         /etc/init.d/$cfg restart 2&> /dev/null
  36                 fi
  37         done
  38 }
  39
  40 rt_tables() {
  41         tables="/etc/iproute2/rt_tables"
  42         if [ -z "`grep "110" $tables`" ]; then
  43                 echo "110 localnets" >> $tables
  44         fi
  45         if [ -z "`grep "111" $tables`" ]; then
  46                 echo "111 olsr" >> $tables
  47         fi
  48         if [ -z "`grep "112" $tables`" ]; then
  49                 echo "112 olsr-default" >> $tables
  50         fi
  51
  52 }
  53
  54 disable_dyngw() {
  55         for cfg in $cfgs; do
  56                 local dyngwlib=`uci show $cfg |grep dyn_gw.so |awk {' FS="."; print $1"."$2 '}`
  57                 if [ -n "$dyngwlib" ]; then
  58                         uci set $dyngwlib.ignore=1
  59                         uci commit $cfg
  60                 fi
  61
  62                 dyngwplainlib=`uci show $cfg |grep dyn_gw_plain |awk {' FS="."; print $1"."$2 '}`
  63                 if [ -n "$dyngwplainlib" ]; then
  64                         rttable="$(uci -q get $dyngwplainlib.RtTable)"
  65                         if [ -z "$rttable" ] || [ "$rttable" = "254" ]; then
  66                                 uci set $dyngwplainlib.ignore=1
  67                                 uci commit $cfg
  68                         fi
  69                 fi
  70         done
  71 }
  72
  73 restart_services() {
  74         logger -s -t policyrouting -p info "Restarting services"
  75         /etc/init.d/network restart 2&> /dev/null
  76         for cfg in $cfgs; do
  77                 /etc/init.d/$cfg restart 2&> /dev/null
  78         done
  79 }
  80
  81 boot() {
  82         if [ "$enable" = "1" ]; then
  83                 [ -d /var/state ] || mkdir -p /var/state
  84                 touch /var/state/freifunk-policyrouting
  85                 start noservicerestart
  86         else
  87                 olsrd_rmtables
  88         fi
  89 }
  90
  91 add_lookup_rule() {
  92         name=${1/-/_}
  93         lookup=$2
  94         prio=$3
  95
  96         if [ -z "$name" -o -z "$lookup" -o -z "$prio" ]; then
  97                 logger -s -t policyrouting "Missing parameters for add_rule!"
  98         else
  99                 for p in $proto; do
 100                         if [ "$p" = "6" ]; then
 101                                 rule="rule6"
 102                         else
 103                                 rule="rule"
 104                         fi
 105
 106                         uci batch <<- EOF
 107                                 set network.${name}ipv${p}="$rule"
 108                                 set network.${name}ipv${p}.lookup="$lookup"
 109                                 set network.${name}ipv${p}.priority="$prio"
 110                         EOF
 111                 done
 112         fi
 113 }
 114
 115 del_lookup_rule() {
 116         name=${1/-/_}
 117         for p in $proto; do
 118                 uci -q delete network.${name}ipv${p}
 119         done
 120 }
 121
 122 start() {
 123         if [ $enable = "1" ]; then
 124                 logger -s -t policyrouting "Starting policy routing."
 125                 rt_tables
 126                 olsrd_intalltables
 127                 disable_dyngw
 128
 129                 add_lookup_rule olsr olsr 1000
 130                 add_lookup_rule localnets localnets 2000
 131
 132                 if [ "$fallback" = 1 ]; then
 133                         add_lookup_rule olsr-default olsr-default 100000
 134                 fi
 135         fi
 136         uci commit network
 137         if [ ! "$1" = "noservicerestart" ]; then
 138                 restart_services
 139         fi
 140 }
 141
 142 stop() {
 143         logger -s -t policyrouting "Stopping 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         restart_services
 150         echo "Hint: To completely disable freifunk-policyrouting set enable=0 in /etc/config/freifunk-policyrouting."
 151 }
 152
 153 restart() {
 154         logger -s -t policyrouting "Restarting policy routing"
 155         olsrd_rmtables
 156         del_lookup_rule olsr-default
 157         del_lookup_rule olsr
 158         del_lookup_rule localnets
 159         uci commit network
 160         start
 161 }