Update vBNG for communication with SDNC

Enable ipv4 forwarding on vbng and add config to enable communication
with the sdnc VNF.
Updated 'dummy' addresses from 30.0.0.0/24 to 192.168.40.0/24 subnet
to prevent collision with public IP subnet.

Change-Id: I89d3b8d972822caaedeab2aa00dd4a0c9f19654d
Issue-ID: INT-63
Signed-off-by: Matt Welch <matt.welch@intel.com>

4 files changed, 15 insertions, 0 deletions

diff --git a/heat/vCPE/vbng/base_vcpe_vbng.env b/heat/vCPE/vbng/base_vcpe_vbng.env
index be4f9728..43ccc514 100644
--- a/heat/vCPE/vbng/base_vcpe_vbng.env
+++ b/heat/vCPE/vbng/base_vcpe_vbng.env
@@ -21,6 +21,7 @@
   vbng_name_0: zdcpe1cpe01bng01
   vnf_id: vCPE_Infrastructure_Metro_vBNG_demo_app
   vf_module_id: vCPE_Intrastructure_Metro_vBNG
+  sdnc_ip_addr: 10.0.7.1
   dcae_collector_ip: 10.0.4.102
   dcae_collector_port: 8080
   repo_url_blob: https://nexus.onap.org/content/sites/raw
diff --git a/heat/vCPE/vbng/base_vcpe_vbng.yaml b/heat/vCPE/vbng/base_vcpe_vbng.yaml
index 3dd7ca09..f32a5c08 100644
--- a/heat/vCPE/vbng/base_vcpe_vbng.yaml
+++ b/heat/vCPE/vbng/base_vcpe_vbng.yaml
@@ -257,6 +257,7 @@ resources:
             __vpp_source_repo_url__ : { get_param: vpp_source_repo_url }
             __vpp_source_repo_branch__ : { get_param: vpp_source_repo_branch }
             __vpp_patch_url__ : { get_param: vpp_patch_url }
+            __sdnc_ip_addr__: { get_param: sdnc_ip_addr }
           template: |
             #!/bin/bash
 
@@ -280,6 +281,7 @@ resources:
             echo "__vpp_source_repo_url__" > /opt/config/vpp_source_repo_url.txt
             echo "__vpp_source_repo_branch__" > /opt/config/vpp_source_repo_branch.txt
             echo "__vpp_patch_url__" > /opt/config/vpp_patch_url.txt
+            echo "__sdnc_ip_addr__" > /opt/config/sdnc_ip_addr.txt
 
             # Download and run install script
             curl -k __repo_url_blob__/org.onap.demo/vnfs/vcpe/__install_script_version__/v_bng_install.sh -o /opt/v_bng_install.sh
diff --git a/vnfs/vCPE/scripts/v_bng_init.sh b/vnfs/vCPE/scripts/v_bng_init.sh
index 6fb2eadc..e4a59835 100644
--- a/vnfs/vCPE/scripts/v_bng_init.sh
+++ b/vnfs/vCPE/scripts/v_bng_init.sh
@@ -2,3 +2,5 @@
 
 systemctl start vpp
 
+ip route add 10.3.0.0/24 via 192.168.40.41 dev tap0
+
diff --git a/vnfs/vCPE/scripts/v_bng_install.sh b/vnfs/vCPE/scripts/v_bng_install.sh
index e20128c5..49bca161 100644
--- a/vnfs/vCPE/scripts/v_bng_install.sh
+++ b/vnfs/vCPE/scripts/v_bng_install.sh
@@ -16,6 +16,7 @@ BRGEMU_BNG_NET_CIDR=$(cat /opt/config/brgemu_bng_net_cidr.txt)
 BRGEMU_BNG_NET_IPADDR=$(cat /opt/config/brgemu_bng_net_ipaddr.txt)
 CPE_SIGNAL_NET_CIDR=$(cat /opt/config/cpe_signal_net_cidr.txt)
 CPE_SIGNAL_NET_IPADDR=$(cat /opt/config/cpe_signal_net_ipaddr.txt)
+SDNC_IP_ADDR=$(cat /opt/config/sdnc_ip_addr.txt)
 
 # Build states are:
 # 'build' - just build the code
@@ -64,6 +65,10 @@ fi  # endif BUILD_STATE != "build"
 
 if [[ $BUILD_STATE != "done" ]]
 then
+    # Enable IPV4 forwarding through kernel
+    sed -i 's/^.*\(net.ipv4.ip_forward\).*/\1=1/g' /etc/sysctl.conf
+    sysctl -p /etc/sysctl.conf
+
     # Download required dependencies
     echo "deb http://ppa.launchpad.net/openjdk-r/ppa/ubuntu $(lsb_release -c -s) main" >>  /etc/apt/sources.list.d/java.list
     echo "deb-src http://ppa.launchpad.net/openjdk-r/ppa/ubuntu $(lsb_release -c -s) main" >>  /etc/apt/sources.list.d/java.list
@@ -250,6 +255,11 @@ set interface ip address ${BNG_GMUX_NIC} ${BNG_GMUX_NET_IPADDR}/${BNG_GMUX_NET_C
 set vbng dhcp4 remote 10.4.0.1 local ${CPE_SIGNAL_NET_IPADDR}
 set vbng aaa config /etc/vpp/vbng-aaa.cfg nas-port 5060
 
+tap connect tap0 address 192.168.40.40/24
+set int state tap-0 up
+set int ip address tap-0 192.168.40.41/24
+ip route add ${SDNC_IP_ADDR}/32 via 192.168.40.40 tap-0
+
 EOF
 
     cat > /etc/vpp/vbng-aaa.cfg << EOF