ipv6/miredo/files/client-hook

   1 #! /bin/sh
   2 #
   3 # Miredo client hook script for Linux/iproute2
   4 # Copyright © 2007 Rémi Denis-Courmont.
   5 # Distributed under the terms of the GNU General Public License version 2.
   6
   7 # Linux iproute2 path:
   8 IP="/usr/sbin/ip"
   9
  10 # Linux default route default metric is 1024
  11 # (we put 1029 so that Teredo is used as a last resort):
  12 METRIC=1029
  13
  14 # Linux routing table ID
  15 # (possible values: 1-252 from /etc/iproute/rt_tables):
  16 TABLE="teredo"
  17
  18 # Linux routing rule priority
  19 # (possible values: 1-32765, lowest number is highest priority):
  20 PRIO=32765
  21
  22 # MTU for the tunnel interface
  23 # (default: specified by the Teredo server, or 1280)
  24 #MTU=1400
  25
  26 if ! test -x "$IP"; then
  27         echo "$0: iproute2 is required! Please install it." >&2
  28         exit 1
  29 fi
  30
  31 # Nothing to do with destroy event
  32 if test "$STATE" = "destroy"; then exit 0; fi
  33
  34 # If the source routing table is not configured, ignore it.
  35 if ! "$IP" route show table "$TABLE" >/dev/null 2>&1; then
  36         unset TABLE
  37 else
  38         if test "$OLD_ADDRESS"; then
  39                 "$IP" -6 rule del from "$OLD_ADDRESS" \
  40                         prio "$PRIO" table "$TABLE" 2>/dev/null
  41         fi
  42         "$IP" -6 route flush table "$TABLE" 2>/dev/null
  43 fi
  44
  45 "$IP" -6 route flush dev "$IFACE" 2>/dev/null
  46 "$IP" -6 address flush dev "$IFACE" 2>/dev/null
  47
  48 "$IP" -6 link set dev "$IFACE" "$STATE"
  49 if test "$MTU"; then
  50         "$IP" link set dev "$IFACE" mtu "$MTU"
  51 fi
  52
  53 case "$STATE" in
  54         up)
  55                 "$IP" -6 address add "${LLADDRESS}/64" dev "$IFACE"
  56                 "$IP" -6 address add "${ADDRESS}/32" dev "$IFACE"
  57                 "$IP" -6 route add default dev "$IFACE" metric "$METRIC"
  58
  59                 if test "$TABLE"; then
  60                         "$IP" -6 route add default dev "$IFACE" table "$TABLE"
  61                         "$IP" -6 rule add from "$ADDRESS" \
  62                                 prio "$PRIO" table "$TABLE"
  63                 fi
  64 esac
  65
  66 # This should be required when changing policy routing rules, but it
  67 # seems to confuse certain kernels into removing our default route!
  68 #"$IP" -6 route flush cache 2>/dev/null
  69
  70 exit 0