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p2p-action.sh revision 1.1.1.2.16.2 
      1  1.1.1.2.16.2  snj #!/bin/sh
      2  1.1.1.2.16.2  snj 
      3  1.1.1.2.16.2  snj IFNAME=$1
      4  1.1.1.2.16.2  snj CMD=$2
      5  1.1.1.2.16.2  snj 
      6  1.1.1.2.16.2  snj kill_daemon() {
      7  1.1.1.2.16.2  snj     NAME=$1
      8  1.1.1.2.16.2  snj     PF=$2
      9  1.1.1.2.16.2  snj 
     10  1.1.1.2.16.2  snj     if [ ! -r $PF ]; then
     11  1.1.1.2.16.2  snj 	return
     12  1.1.1.2.16.2  snj     fi
     13  1.1.1.2.16.2  snj 
     14  1.1.1.2.16.2  snj     PID=`cat $PF`
     15  1.1.1.2.16.2  snj     if [ $PID -gt 0 ]; then
     16  1.1.1.2.16.2  snj 	if ps $PID | grep -q $NAME; then
     17  1.1.1.2.16.2  snj 	    kill $PID
     18  1.1.1.2.16.2  snj 	fi
     19  1.1.1.2.16.2  snj     fi
     20  1.1.1.2.16.2  snj     rm $PF
     21  1.1.1.2.16.2  snj }
     22  1.1.1.2.16.2  snj 
     23  1.1.1.2.16.2  snj if [ "$CMD" = "P2P-GROUP-STARTED" ]; then
     24  1.1.1.2.16.2  snj     GIFNAME=$3
     25  1.1.1.2.16.2  snj     if [ "$4" = "GO" ]; then
     26  1.1.1.2.16.2  snj 	kill_daemon dhclient /var/run/dhclient-$GIFNAME.pid
     27  1.1.1.2.16.2  snj 	rm /var/run/dhclient.leases-$GIFNAME
     28  1.1.1.2.16.2  snj 	kill_daemon dnsmasq /var/run/dnsmasq.pid-$GIFNAME
     29  1.1.1.2.16.2  snj 	ifconfig $GIFNAME 192.168.42.1 up
     30  1.1.1.2.16.2  snj 	if ! dnsmasq -x /var/run/dnsmasq.pid-$GIFNAME \
     31  1.1.1.2.16.2  snj 	    -i $GIFNAME \
     32  1.1.1.2.16.2  snj 	    -F192.168.42.11,192.168.42.99; then
     33  1.1.1.2.16.2  snj 	    # another dnsmasq instance may be running and blocking us; try to
     34  1.1.1.2.16.2  snj 	    # start with -z to avoid that
     35  1.1.1.2.16.2  snj 	    dnsmasq -x /var/run/dnsmasq.pid-$GIFNAME \
     36  1.1.1.2.16.2  snj 		-i $GIFNAME \
     37  1.1.1.2.16.2  snj 		-F192.168.42.11,192.168.42.99 --listen-address 192.168.42.1 -z -p 0
     38  1.1.1.2.16.2  snj 	fi
     39  1.1.1.2.16.2  snj     fi
     40  1.1.1.2.16.2  snj     if [ "$4" = "client" ]; then
     41  1.1.1.2.16.2  snj 	kill_daemon dhclient /var/run/dhclient-$GIFNAME.pid
     42  1.1.1.2.16.2  snj 	rm /var/run/dhclient.leases-$GIFNAME
     43  1.1.1.2.16.2  snj 	kill_daemon dnsmasq /var/run/dnsmasq.pid-$GIFNAME
     44  1.1.1.2.16.2  snj 	ipaddr=`echo "$*" | sed 's/.* ip_addr=\([^ ]*\).*/\1/'`
     45  1.1.1.2.16.2  snj 	ipmask=`echo "$*" | sed 's/.* ip_mask=\([^ ]*\).*/\1/'`
     46  1.1.1.2.16.2  snj 	goipaddr=`echo "$*" | sed 's/.* go_ip_addr=\([^ ]*\).*/\1/'`
     47  1.1.1.2.16.2  snj 	if echo "$ipaddr$ipmask$goipaddr" | grep -q ' '; then
     48  1.1.1.2.16.2  snj 	    ipaddr=""
     49  1.1.1.2.16.2  snj 	    ipmask=""
     50  1.1.1.2.16.2  snj 	    goipaddr=""
     51  1.1.1.2.16.2  snj 	fi
     52  1.1.1.2.16.2  snj 	if [ -n "$ipaddr" ]; then
     53  1.1.1.2.16.2  snj 	    sudo ifconfig $GIFNAME "$ipaddr" netmask "$ipmask"
     54  1.1.1.2.16.2  snj 	    sudo ip ro re default via "$goipaddr"
     55  1.1.1.2.16.2  snj 	    exit 0
     56  1.1.1.2.16.2  snj 	fi
     57  1.1.1.2.16.2  snj 	dhclient -pf /var/run/dhclient-$GIFNAME.pid \
     58  1.1.1.2.16.2  snj 	    -lf /var/run/dhclient.leases-$GIFNAME \
     59  1.1.1.2.16.2  snj 	    -nw \
     60  1.1.1.2.16.2  snj 	    $GIFNAME
     61  1.1.1.2.16.2  snj     fi
     62  1.1.1.2.16.2  snj fi
     63  1.1.1.2.16.2  snj 
     64  1.1.1.2.16.2  snj if [ "$CMD" = "P2P-GROUP-REMOVED" ]; then
     65  1.1.1.2.16.2  snj     GIFNAME=$3
     66  1.1.1.2.16.2  snj     if [ "$4" = "GO" ]; then
     67  1.1.1.2.16.2  snj 	kill_daemon dnsmasq /var/run/dnsmasq.pid-$GIFNAME
     68  1.1.1.2.16.2  snj 	ifconfig $GIFNAME 0.0.0.0
     69  1.1.1.2.16.2  snj     fi
     70  1.1.1.2.16.2  snj     if [ "$4" = "client" ]; then
     71  1.1.1.2.16.2  snj 	kill_daemon dhclient /var/run/dhclient-$GIFNAME.pid
     72  1.1.1.2.16.2  snj 	rm /var/run/dhclient.leases-$GIFNAME
     73  1.1.1.2.16.2  snj 	ifconfig $GIFNAME 0.0.0.0
     74  1.1.1.2.16.2  snj     fi
     75  1.1.1.2.16.2  snj fi
     76  1.1.1.2.16.2  snj 
     77  1.1.1.2.16.2  snj if [ "$CMD" = "P2P-CROSS-CONNECT-ENABLE" ]; then
     78  1.1.1.2.16.2  snj     GIFNAME=$3
     79  1.1.1.2.16.2  snj     UPLINK=$4
     80  1.1.1.2.16.2  snj     # enable NAT/masquarade $GIFNAME -> $UPLINK
     81  1.1.1.2.16.2  snj     iptables -P FORWARD DROP
     82  1.1.1.2.16.2  snj     iptables -t nat -A POSTROUTING -o $UPLINK -j MASQUERADE
     83  1.1.1.2.16.2  snj     iptables -A FORWARD -i $UPLINK -o $GIFNAME -m state --state RELATED,ESTABLISHED -j ACCEPT
     84  1.1.1.2.16.2  snj     iptables -A FORWARD -i $GIFNAME -o $UPLINK -j ACCEPT
     85  1.1.1.2.16.2  snj     sysctl net.ipv4.ip_forward=1
     86  1.1.1.2.16.2  snj fi
     87  1.1.1.2.16.2  snj 
     88  1.1.1.2.16.2  snj if [ "$CMD" = "P2P-CROSS-CONNECT-DISABLE" ]; then
     89  1.1.1.2.16.2  snj     GIFNAME=$3
     90  1.1.1.2.16.2  snj     UPLINK=$4
     91  1.1.1.2.16.2  snj     # disable NAT/masquarade $GIFNAME -> $UPLINK
     92  1.1.1.2.16.2  snj     sysctl net.ipv4.ip_forward=0
     93  1.1.1.2.16.2  snj     iptables -t nat -D POSTROUTING -o $UPLINK -j MASQUERADE
     94  1.1.1.2.16.2  snj     iptables -D FORWARD -i $UPLINK -o $GIFNAME -m state --state RELATED,ESTABLISHED -j ACCEPT
     95  1.1.1.2.16.2  snj     iptables -D FORWARD -i $GIFNAME -o $UPLINK -j ACCEPT
     96  1.1.1.2.16.2  snj fi
     97