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-rw-r--r--vnfs/vFW/scripts/v_packetgen_init.sh26
1 files changed, 25 insertions, 1 deletions
diff --git a/vnfs/vFW/scripts/v_packetgen_init.sh b/vnfs/vFW/scripts/v_packetgen_init.sh
index ca6571b7..3b8f51ff 100644
--- a/vnfs/vFW/scripts/v_packetgen_init.sh
+++ b/vnfs/vFW/scripts/v_packetgen_init.sh
@@ -1,5 +1,26 @@
#!/bin/bash
+# Convert Network CIDR to Netmask
+mask2cidr() {
+ nbits=0
+ IFS=.
+ for dec in $1 ; do
+ case $dec in
+ 255) let nbits+=8;;
+ 254) let nbits+=7;;
+ 252) let nbits+=6;;
+ 248) let nbits+=5;;
+ 240) let nbits+=4;;
+ 224) let nbits+=3;;
+ 192) let nbits+=2;;
+ 128) let nbits+=1;;
+ 0);;
+ *) echo "Error: $dec is not recognized"; exit 1
+ esac
+ done
+ echo "$nbits"
+}
+
# Start VPP
start vpp
sleep 1
@@ -12,12 +33,15 @@ PROTECTED_NET_CIDR=$(cat /opt/config/protected_net_cidr.txt)
FW_IPADDR=$(cat /opt/config/fw_ipaddr.txt)
SINK_IPADDR=$(cat /opt/config/sink_ipaddr.txt)
+IPADDR1_MASK=$(ifconfig eth1 | grep "Mask" | awk '{print $4}' | awk -F ":" '{print $2}')
+IPADDR1_CIDR=$(mask2cidr $IPADDR1_MASK)
+
ifconfig eth1 down
ifconfig eth1 hw ether $FAKE_HWADDR1
ip addr flush dev eth1
ifconfig eth1 up
vppctl tap connect tap111 hwaddr $HWADDR1
-vppctl set int ip address tap-0 $IPADDR1"/24"
+vppctl set int ip address tap-0 $IPADDR1"/"$IPADDR1_CIDR
vppctl set int state tap-0 up
brctl addbr br0
brctl addif br0 tap111