# Copyright (c) 2016-2017 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.
#
#
# This configuration creates the functionality of a lwAFTR component of the
# lw4over6 architecture as described in IETF draft available at:
#   http://tools.ietf.org/id/draft-ietf-softwire-lw4over6-13.txt
# The lwAFTR simply terminates IPv6 tunnels that carry IPv4 traffic for many
# customers (one tunnel per customer). It consists of two tasks:
# 1) ipv6_encap that encapsulates IPv4 packets into IPv6 and sends those tunnel
#    packets towards the customer tunnel endpoint. For this, it must use a
#    binding table that associates with each tunnel, a public IPv4 address and a
#    set of ports.
# 2) ipv6_decap which handles packets arriving from the tunnel, checks they use
#    a source IPv4 address and port combination that matches their originating
#    tunnel (based on the same binding table as used by ipv6_encap), removes the
#    IPv6 encapsulation and sends them out its "internet" interface.
# The binding table must be loaded in the [lua] section and assigned to the
# tasks using the "tun_bindings" parameter. This configuration loads its binding
# table from the provided ip6_tun_bind_65k.lua.
#

[lua]
bindings = dofile("ip6_tun_bind_65k.lua")

[variables]
$tun_hop_limit=5
$local_ipv6=fe80:0000:0000:0000:0100:00ff:fe00:0000
$lookup_port_mask=0xffc0
$master        =0
$core_inet_0   =1
$core_inet_1   =2
$core_lwb4_0   =3
$core_lwb4_1   =4

[eal options]
-n=4
no-output=no ; disable DPDK debug output

[port 0]
name=inet_0
mac=hardware
rx desc=2048
tx desc=2048
promiscuous=yes

[port 1]
name=lwB4_0
mac=hardware
rx desc=2048
tx desc=2048
promiscuous=yes

[port 2]
name=inet_1
mac=hardware
rx desc=2048
tx desc=2048
promiscuous=yes

[port 3]
name=lwB4_1
mac=hardware
rx desc=2048
tx desc=2048
promiscuous=yes

[defaults]
mempool size=32K
memcache size=512

[global]
start time=20
name=lwAFTR

[core $master]
mode=master

;*****************************************************************************************
;##### Send Internet IPv4 traffic into IPv6 tunnels, according to binding table ####
[core $core_inet_0]
name=v6_encap
task=0
mode=ipv6_encap
rx port=inet_0
tx cores=${self}t1
drop=no
local ipv6=$local_ipv6
tunnel hop limit=$tun_hop_limit
lookup port mask=$lookup_port_mask
tun_bindings=bindings

name=tx_lwb4_0
task=1
mode=l2fwd
dst mac=@@tester_p1
rx ring=yes
tx port=lwB4_0
drop=no

[core $core_inet_1]
name=v6_encap
task=0
mode=ipv6_encap
rx port=inet_1
tx cores=${self}t1
drop=no
local ipv6=$local_ipv6
tunnel hop limit=$tun_hop_limit
lookup port mask=$lookup_port_mask
tun_bindings=bindings

name=tx_lwb4_1
task=1
mode=l2fwd
dst mac=@@tester_p3
rx ring=yes
tx port=lwB4_1
drop=no

;*****************************************************************************************
;##### Terminate IPv6 tunnels and transmit IPv4 out to Internet ####
;# Binding table is checked to ensure src IPv4 address and port combo is allocated to the originating tunnel
[core $core_lwb4_0]
name=v6_decap
task=0
mode=ipv6_decap
rx port=lwB4_0
tx cores=${self}t1
drop=no
local ipv6=$local_ipv6
tunnel hop limit=$tun_hop_limit
lookup port mask=$lookup_port_mask
tun_bindings=bindings

name=tx_inet_0
task=1
mode=l2fwd
dst mac=@@tester_p0
rx ring=yes
tx port=inet_0
drop=no

[core $core_lwb4_1]
name=v6_decap
task=0
mode=ipv6_decap
rx port=lwB4_1
tx cores=${self}t1
drop=no
local ipv6=$local_ipv6
tunnel hop limit=$tun_hop_limit
lookup port mask=$lookup_port_mask
tun_bindings=bindings

name=tx_inet_1
task=1
mode=l2fwd
dst mac=@@tester_p2
rx ring=yes
tx port=inet_1
drop=no