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→Skript bzw. fertiges Programm: +kommentare
#!/bin/sh
#!/bin/sh
# Funktion um Netzknotennummer einem Ort zuzuweisen,fuer lesbare Konfig
get_name() {
get_name() {
case $1 in
case $1 in
}
}
# Funktion zum schreiben der OLSR-Konfigdaten
write_olsr() {
write_olsr() {
echo -e "\n{\nHelloInterval 5.0\nHelloValidityTime 90.0\nTcInterval 3.0\nTcValidityTime 270.0"
echo -e "\n{\nHelloInterval 5.0\nHelloValidityTime 90.0\nTcInterval 3.0\nTcValidityTime 270.0"
}
}
# Variablendefinitionen
THIS="$(nvram get wifi_ipaddr|cut -d'.' -f3)"
THIS="$(nvram get wifi_ipaddr|cut -d'.' -f3)"
OLSR="/etc/local.olsrd.conf"; VTUN="/etc/vtund.conf"
OLSR="/etc/local.olsrd.conf"; VTUN="/etc/vtund.conf"
VPN="10.63.254"; SRV="214"; CNT="-1"
VPN="10.63.254"; SRV="214"; CNT="-1"
# Liste aller teilnehmenden Clients (Netzknotennummern)
LST="41 82 42 37 62 54 135 87 1"
LST="41 82 42 37 62 54 135 87 1"
test -e $OLSR && rm $OLSR
# sicherheitshalber evtl. laufende Instanzen und/oder vorhandene Dateien loeschen
test -e $OLSR && rm $CFG
test -e $OLSR && rm $OLSR; test -e $OLSR && rm $CFG
killall vtund
killall vtund; killall -9 vtund
killall -9 vtund
# laeuft das skript auf dem Server oder auf einem Client?
if [ "$THIS" = "$SRV" ]
if [ "$THIS" = "$SRV" ]
then
then
echo >$VTUN "default { proto udp; type tun; compress no; encrypt no; keepalive yes; multi yes; stat no; }"
# ok,skript laeuft auf dem server, also passende Konfigs machen, und fuer jeden client eine extra OLSR-interface-config
echo >$VTUN "default { proto udp; type tun; compress no; encrypt no; keepalive yes; multi yes; stat no; }"
for CLIENT in $LST;do let CNT+=1
for CLIENT in $LST;do let CNT+=1
echo >>$VTUN "$(get_name $CLIENT) { passwd bla; device tun$CNT;"
echo >>$VTUN "$(get_name $CLIENT) { passwd bla; device tun$CNT;"
echo >>$VTUN " up { program \"ip addr add $VPN.$THIS peer $VPN.$CLIENT dev %%; ip link set %% mtu 1450 up\"; }; }"
echo >>$VTUN " up { program \"ip addr add $VPN.$THIS peer $VPN.$CLIENT dev %%; ip link set %% mtu 1450 up\"; }; }"
echo >>$OLSR -e "Interface \"tun$CNT\"$(write_olsr)\nIp4Broadcast $VPN.$CLIENT\n}"
echo >>$OLSR "Interface \"tun$CNT\"$(write_olsr)"
iptables -I POSTROUTING -t nat -o tun$CNT -j MASQUERADE
iptables -I POSTROUTING -t nat -o tun$CNT -j MASQUERADE
done
done
vtund -s
vtund -s
else
else
# ok,skript laeuft auf einem Client, also passende Konfigs erzeugen
CNT=0;for IP in $LST;do if [ "$IP" = "$THIS" ];then NUMMER=$CNT;fi;let CNT+=1;done
CNT=0;for IP in $LST;do if [ "$IP" = "$THIS" ];then NUMMER=$CNT;fi;let CNT+=1;done
echo >$VTUN "$(get_name $THIS) { passwd bla; type tun; persist yes;"
echo >$VTUN "$(get_name $THIS) { passwd bla; type tun; persist yes;"
echo >>$VTUN " up { program \"ip addr add dev %% $VPN.$THIS peer $VPN.$SRV; ip link set %% mtu 1450 up\"; }; }"
echo >>$VTUN " up { program \"ip addr add dev %% $VPN.$THIS peer $VPN.$SRV; ip link set %% mtu 1450 up\"; }; }"
echo >>$OLSR -e "Interface \"tun0\"$(write_olsr)\nIp4Broadcast $VPN.$SRV\nLinkQualityMult $VPN.$SRV 0.1\n}"
echo >>$OLSR "Interface \"tun0\"$(write_olsr)"
# und starten
vtund $(get_name $THIS) 141.54.160.25
vtund $(get_name $THIS) 141.54.160.25
fi
fi
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