Added initial support for BGP

Through this commit BGP messages are forwarded to tap device
Netlink messages are enabled to receive route Updates.

In addition, generating tasks can also specify a routing table
which will be used when sending packets

The routes initialized by the routing table can be changed through
the reception of BGP messages

Change-Id: I187ba9a921885cbc9b209aae5fb654309e3388b8
Signed-off-by: Xavier Simonart <xavier.simonart@intel.com>

2 files changed, 98 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/gen/gen_tap.cfg b/VNFs/DPPD-PROX/gen/gen_tap.cfg
new file mode 100644
index 00000000..60239681
--- /dev/null
+++ b/VNFs/DPPD-PROX/gen/gen_tap.cfg
@@ -0,0 +1,69 @@
+;;
+;; Copyright (c) 2020 Intel Corporation
+;;
+;; Licensed under the Apache License, Version 2.0 (the "License");
+;; you may not use this file except in compliance with the License.
+;; You may obtain a copy of the License at
+;;
+;;     http://www.apache.org/licenses/LICENSE-2.0
+;;
+;; Unless required by applicable law or agreed to in writing, software
+;; distributed under the License is distributed on an "AS IS" BASIS,
+;; WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+;; See the License for the specific language governing permissions and
+;; limitations under the License.
+;;
+
+[eal options]
+-n=4 ; force number of memory channels
+no-output=no ; disable DPDK debug output
+
+[lua]
+lpm4 = dofile("l3-ipv4.lua")
+
+[port 0]
+name=p0
+vdev=gen_tap
+local ipv4=$ip1
+
+[defaults]
+mempool size=16K
+
+[global]
+start time=5
+name=Basic Gen
+
+[variables]
+$hex_ip1=c0 a8 7a 7e
+$hex_ip2=c0 a8 7b 7f
+$ip1=192.168.122.126
+$ip2=192.168.123.127
+
+[core 0s0]
+mode=master
+
+[core 1]
+name=p0
+task=0
+mode=gen
+sub mode=l3
+tx port=p0
+route table=lpm4
+bps=1250000000
+pkt inline=00 00 01 00 00 01 00 00 02 00 00 02 08 00 45 00 00 1c 00 01 00 00 40 11 f7 7d ${hex_ip1} ${hex_ip2} 13 88 13 88 00 08 55 7b
+pkt size=60
+lat pos=42
+packet id pos=46
+min bulk size=8
+local ipv4=${ip1}/24
+
+[core 2]
+name=nop
+task=0
+mode=lat
+sub mode=l3
+rx port=p0
+drop=no
+lat pos=42
+packet id pos=46
+local ipv4=${ip1}/24
diff --git a/VNFs/DPPD-PROX/gen/l3-ipv4.lua b/VNFs/DPPD-PROX/gen/l3-ipv4.lua
new file mode 100644
index 00000000..1c988341
--- /dev/null
+++ b/VNFs/DPPD-PROX/gen/l3-ipv4.lua
@@ -0,0 +1,29 @@
+--
+-- Copyright (c) 2010-2017 Intel Corporation
+--
+-- Licensed under the Apache License, Version 2.0 (the "License");
+-- you may not use this file except in compliance with the License.
+-- You may obtain a copy of the License at
+--
+--     http://www.apache.org/licenses/LICENSE-2.0
+--
+-- Unless required by applicable law or agreed to in writing, software
+-- distributed under the License is distributed on an "AS IS" BASIS,
+-- WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+-- See the License for the specific language governing permissions and
+-- limitations under the License.
+--
+
+local lpm4 = {}
+lpm4.next_hops = {
+   {id = 0,  port_id = 0, ip = ip("192.168.122.240")},
+   {id = 1,  port_id = 0, ip = ip("192.168.122.246")},
+   {id = 2,  port_id = 0, ip = ip("192.168.122.247")}
+}
+
+lpm4.routes = {
+   {cidr = {ip = ip("192.168.123.0"), depth = 24}, next_hop_id = 0},
+   {cidr = {ip = ip("192.168.124.0"), depth = 24}, next_hop_id = 1},
+   {cidr = {ip = ip("192.168.125.0"), depth = 24}, next_hop_id = 2},
+}
+return lpm4