update-olsrv6.sh

#!/bin/sh

#run with crontab
#0 8 * * * /etc/named.d/update-olsrv6.sh

export MAILTO=""
SERVER="127.0.0.1"
ZONENAME=".pberg.freifunk.net."
#ZONENET_1="2001:470:5038"
#ZONENET_1="2001:bf7:760"
ZONENET_1="2001:bf7"
#          2001:bf7:760::/48
HOSTS_1="hosts.olsr.ipv6"
TTL="3600"
KEYFILE="/etc/named.d/Kpberg.freifunk.net.+157+33698"
IPV6_REGEX='^((([0-9A-Fa-f]{1,4}:){7}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}:[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){5}:([0-9A-Fa-f]{1,4}:)?[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){4}:([0-9A-Fa-f]{1,4}:){0,2}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){3}:([0-9A-Fa-f]{1,4}:){0,3}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){2}:([0-9A-Fa-f]{1,4}:){0,4}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){6}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(([0-9A-Fa-f]{1,4}:){0,5}:((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|(::([0-9A-Fa-f]{1,4}:){0,5}((\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b)\.){3}(\b((25[0-5])|(1\d{2})|(2[0-4]\d)|(\d{1,2}))\b))|([0-9A-Fa-f]{1,4}::([0-9A-Fa-f]{1,4}:){0,5}[0-9A-Fa-f]{1,4})|(::([0-9A-Fa-f]{1,4}:){0,6}[0-9A-Fa-f]{1,4})|(([0-9A-Fa-f]{1,4}:){1,7}:))(\/(1[0-1][0-9]|12[0-8]|[2-9][0-9]|1[6-9]))?$'
IPV4_REGEX='[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}\.[[:digit:]]{1,3}'

updatedns() {
      SERVER="$1"
      ENTRY="$2"
      RECORD="$3"
      NAME="$4"
      DATE="$(date)"
      echo "$SERVER $ENTRY $RECORD $NAME"
      /usr/bin/nsupdate -v -k "$KEYFILE" <<EOF
server $SERVER
update delete $ENTRY $RECORD
update delete $ENTRY TXT
update add $ENTRY $TTL $RECORD $NAME 
update add $ENTRY $TTL TXT $DATE
show
send
EOF
}

main() {
    IP6ADDR=""
    IP6ADDR=$(echo "$1" | egrep $IPV6_REGEX)
    TYPE="NONE"
    if [ ! -z "${IP6ADDR}" ] ; then
      TYPE="AAAA"
      IPADDR=$IP6ADDR
    fi
    if [ "$TYPE" == "NONE" ] ; then
      echo "No IP Adresstype found"
      #exit 1
    fi
    #eval HOSTNAME=$(echo "$2" | egrep '^([0-9A-Za-z\-\.])*$')
    eval HOSTNAME=$(echo "$2" | sed -e 's/\.olsr.*//')
    if [ ! -z "${HOSTNAME}" ] && [ ! -z "${IPADDR}" ]  && [ ! "${HOSTNAME}" == "localhost" ]; then
      if [ "$TYPE" == "AAAA" ] ; then
            FQDN="$HOSTNAME""$ZONENAME"
            echo "HOSTNAME: $FQDN IPADDR: $IPADDR"
            updatedns "$SERVER" "$FQDN" "$TYPE" "$IPADDR"
            IPADDR=$(ipv6calc --in ipv6addr --out revnibbles.arpa $IPADDR)
            updatedns "$SERVER" "$IPADDR" "PTR" "$FQDN"
      fi
    fi
}

ssh root@2001:bf7:780:1018::1 "cat /var/etc/$HOSTS_1" | grep "$ZONENET_1" | while read line ; do
    set $line >/dev/null
    main $1 $2
done