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 handle_disable_dyngw() {
  55         local cfg="$1"
  56         local olsrd_cfg="$2"
  57         config_get library "$cfg" library
  58         case "$library" in
  59                 olsrd_dyn_gw_plain*)
  60                         config_get RtTable "$cfg" RtTable
  61                         if [ -z "$RtTable" ] || [ "$RtTable" = "254" ]; then
  62                                 config_set "$cfg" ignore '1'
  63                                 uci set $olsrd_cfg.$cfg.ignore="1"
  64                                 uci commit $olsrd_cfg
  65                                 logger -s -t policyrouting -p info "dyngw_plain plugin disabled."
  66                         fi
  67                 ;;
  68                 olsrd_dyn_gw.so*)
  69                         logger -s -t policyrouting -p info "$cfg"
  70                         uci set $olsrd_cfg.$cfg.ignore="1"
  71                                 uci commit $olsrd_cfg
  72                         logger -s -t policyrouting -p info "dyngw plugin disabled."
  73                 ;;
  74         esac
  75 }
  76
  77 disable_dyngw() {
  78         for olsrd_cfg in $cfgs; do
  79                 config_load $olsrd_cfg
  80                 config_foreach handle_disable_dyngw LoadPlugin $olsrd_cfg
  81         done
  82 }
  83
  84 restart_services() {
  85         logger -s -t policyrouting -p info "Restarting services"
  86         /etc/init.d/network restart 2&> /dev/null
  87         for cfg in $cfgs; do
  88                 /etc/init.d/$cfg restart 2&> /dev/null
  89         done
  90 }
  91
  92 boot() {
  93         if [ "$enable" = "1" ]; then
  94                 [ -d /var/state ] || mkdir -p /var/state
  95                 touch /var/state/freifunk-policyrouting
  96                 start noservicerestart
  97         else
  98                 olsrd_rmtables
  99         fi
 100 }
 101
 102 add_lookup_rule() {
 103         name=${1/-/_}
 104         lookup=$2
 105         prio=$3
 106
 107         if [ -z "$name" -o -z "$lookup" -o -z "$prio" ]; then
 108                 logger -s -t policyrouting "Missing parameters for add_rule!"
 109         else
 110                 for p in $proto; do
 111                         if [ "$p" = "6" ]; then
 112                                 rule="rule6"
 113                         else
 114                                 rule="rule"
 115                         fi
 116
 117                         uci batch <<- EOF
 118                                 set network.${name}ipv${p}="$rule"
 119                                 set network.${name}ipv${p}.lookup="$lookup"
 120                                 set network.${name}ipv${p}.priority="$prio"
 121                         EOF
 122                 done
 123         fi
 124 }
 125
 126 del_lookup_rule() {
 127         name=${1/-/_}
 128         for p in $proto; do
 129                 uci -q delete network.${name}ipv${p}
 130         done
 131 }
 132
 133 start() {
 134         if [ $enable = "1" ]; then
 135                 logger -s -t policyrouting "Starting policy routing."
 136                 rt_tables
 137                 olsrd_intalltables
 138                 disable_dyngw
 139
 140                 add_lookup_rule olsr olsr 1000
 141                 add_lookup_rule localnets localnets 2000
 142
 143                 if [ "$fallback" = 1 ]; then
 144                         add_lookup_rule olsr-default olsr-default 100000
 145                 fi
 146         fi
 147         uci commit network
 148         if [ ! "$1" = "noservicerestart" ]; then
 149                 restart_services
 150         fi
 151 }
 152
 153 stop() {
 154         logger -s -t policyrouting "Stopping 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         restart_services
 161         echo "Hint: To completely disable freifunk-policyrouting set enable=0 in /etc/config/freifunk-policyrouting."
 162 }
 163
 164 restart() {
 165         logger -s -t policyrouting "Restarting policy routing"
 166         olsrd_rmtables
 167         del_lookup_rule olsr-default
 168         del_lookup_rule olsr
 169         del_lookup_rule localnets
 170         uci commit network
 171         start
 172 }