diff options
Diffstat (limited to 'vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh')
| -rw-r--r-- | vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh | 44 |
1 files changed, 33 insertions, 11 deletions
diff --git a/vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh b/vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh index 0968b5fa..9e7879bc 100644 --- a/vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh +++ b/vnfs/vLB/scripts/v_packetgen_for_dns_demo_init.sh @@ -4,19 +4,43 @@ start vpp sleep 1 +# Compute the network CIDR from the 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" +} + +IPADDR1_MASK=$(ifconfig eth0 | grep "Mask" | awk '{print $4}' | awk -F ":" '{print $2}') +IPADDR1_CIDR=$(mask2cidr $IPADDR1_MASK) + # Configure VPP for vPacketGenerator IPADDR1=$(ifconfig eth0 | grep "inet addr" | tr -s ' ' | cut -d' ' -f3 | cut -d':' -f2) HWADDR1=$(ifconfig eth0 | grep HWaddr | tr -s ' ' | cut -d' ' -f5) FAKE_HWADDR1=$(echo -n 00; dd bs=1 count=5 if=/dev/urandom 2>/dev/null | hexdump -v -e '/1 ":%02X"') VLB_IPADDR=$(cat /opt/config/vlb_ipaddr.txt) -GW=$(route | grep default | awk '{print $2}') +GW=$(route -n | grep "^0.0.0.0" | awk '{print $2}') ifconfig eth0 down ifconfig eth0 hw ether $FAKE_HWADDR1 ip addr flush dev eth0 ifconfig eth0 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 @@ -26,9 +50,9 @@ vppctl ip route add 0.0.0.0/0 via $GW sleep 1 -#Let's set br0 with public IP and valid MAC so that Linux will have public network access +# Set br0 with public IP and valid MAC so that Linux will have public network access ifconfig br0 hw ether $HWADDR1 -ifconfig br0 $IPADDR1 netmask 255.255.255.0 +ifconfig br0 $IPADDR1 netmask $IPADDR1_MASK route add default gw $GW #Adding static arp entry for VPP so that it will be able to send packets to default GW @@ -38,15 +62,15 @@ sleep 3 GW_MAC=$(arp -n | grep -w $GW | tr -s ' ' | cut -d' ' -f3) VLB_MAC=$(arp -n | grep -w $VLB_IPADDR | tr -s ' ' | cut -d' ' -f3) -#if VLB in our network, we will use its mac -if [ ! -z "$VLB_MAC" ]; then -vppctl set ip arp tap-0 $VLB_IPADDR $VLB_MAC +# If VLB is in our network, we will use its MAC +if [ ! -z "$VLB_MAC" ] +then + vppctl set ip arp tap-0 $VLB_IPADDR $VLB_MAC fi -# in any case let's add arp entry for default gw +# Add arp entry for default GW vppctl set ip arp tap-0 $GW $GW_MAC - # Install packet streams sed -i -e "0,/UDP/ s/UDP:.*/UDP: "$IPADDR1" -> "$VLB_IPADDR"/" /opt/dns_streams/stream_dns1 sed -i -e "0,/UDP/ s/UDP:.*/UDP: "$IPADDR1" -> "$VLB_IPADDR"/" /opt/dns_streams/stream_dns2 @@ -59,8 +83,6 @@ sed -i -e "0,/UDP/ s/UDP:.*/UDP: "$IPADDR1" -> "$VLB_IPADDR"/" /opt/dns_streams/ sed -i -e "0,/UDP/ s/UDP:.*/UDP: "$IPADDR1" -> "$VLB_IPADDR"/" /opt/dns_streams/stream_dns9 sed -i -e "0,/UDP/ s/UDP:.*/UDP: "$IPADDR1" -> "$VLB_IPADDR"/" /opt/dns_streams/stream_dns10 -#sed -i -e "s/.*-> 53.*/ UDP: $RANDOM -> 53/" /opt/dns_streams/stream_dns* - sed -i -e "s/.*-> 53.*/ UDP: $RANDOM -> 53/" /opt/dns_streams/stream_dns1 sed -i -e "s/.*-> 53.*/ UDP: $RANDOM -> 53/" /opt/dns_streams/stream_dns2 sed -i -e "s/.*-> 53.*/ UDP: $RANDOM -> 53/" /opt/dns_streams/stream_dns3 |