Adding PROX(Packet pROcessing eXecution engine) VNF to sampleVNF

JIRA: SAMPLEVNF-55

PROX is a DPDK-based application implementing Telco use-cases such as
a simplified BRAS/BNG, light-weight AFTR... It also allows configuring
finer grained network functions like QoS, Routing, load-balancing...

(We are moving PROX version v039 to sampleVNF
https://01.org/intel-data-plane-performance-demonstrators/prox-overview)

Change-Id: Ia3cb02cf0e49ac5596e922c197ff7e010293d033
Signed-off-by: Deepak S <deepak.s@linux.intel.com>

1 files changed, 271 insertions, 0 deletions

diff --git a/VNFs/DPPD-PROX/helper-scripts/ipv6_tun/gen_4over6.pl b/VNFs/DPPD-PROX/helper-scripts/ipv6_tun/gen_4over6.pl
new file mode 100755
index 00000000..8e42eeba
--- /dev/null
+++ b/VNFs/DPPD-PROX/helper-scripts/ipv6_tun/gen_4over6.pl
@@ -0,0 +1,271 @@
+#!/usr/bin/perl
+
+##
+## 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.
+##
+
+use strict vars;
+use Getopt::Long;
+use Pod::Usage;
+use Net::Pcap;
+use Net::Frame::Layer;
+use Net::Frame::Layer::ETH qw(:consts);
+use Net::Frame::Layer::IPv6 qw(:consts);
+use Net::Frame::Layer::IPv4 qw(:consts);
+use Net::Frame::Layer::UDP;
+use Socket qw(AF_INET AF_INET6 inet_ntop inet_pton);
+
+use constant NUM_PACKETS => 30000;
+
+use constant ETHER_ADDR_LEN => 6;
+use constant ETHER_TYPE_LEN => 2;
+use constant ETHER_HDR_LEN => ( 2 * ETHER_ADDR_LEN ) + ETHER_TYPE_LEN;
+use constant ETHER_STATIC_MAC => "78acdddddddd";
+
+use constant UDP_HDR_LEN => 8;
+use constant UDP_STATIC_PORT => 0x6666;
+
+use constant IPv6_HOP_LIMIT => 4;
+use constant IPv6_STATIC_IP => "2222:2222:2222:2222:2222:2222:2222:2222";
+
+use constant IPv4_TIME_TO_LIVE => 32;
+use constant IPv4_STATIC_IP => "68.68.68.68";
+
+srand;
+
+my $type = 'tun';
+my $pkt_count = NUM_PACKETS;
+
+GetOptions(
+	'inet' => sub { $type = 'inet'},
+	'tun' => sub { $type = 'tun'},
+	'count=i'      => \$pkt_count,
+	'in=s' => \(my $in = 'ip6_tun_bind.lua'),
+	'out=s' => \(my $out = 'output.pcap'),
+	'size=s' => \(my $size = 0)
+) or exit;
+
+my $pcap = pcap_open_dead( DLT_EN10MB, 65535 );
+my $dumper = pcap_dump_open($pcap, $out ) or die 'Could not create output file: ' . $out;
+
+if( $type eq 'inet' ) {
+	gen_inet_pcap( $in, $pkt_count );
+}
+if( $type eq 'tun' ) {
+	gen_tun_pcap( $in, $pkt_count );
+}
+
+pcap_close( $pcap );
+
+# Trim string
+sub trim {
+	my ( $str ) = @_;
+
+	$str =~ s/^\s+|\s+$//g;
+
+	return $str;
+}
+
+# Generate random port based on $port and $port_mask
+sub rand_port {
+	my ( $port, $port_mask ) = @_;
+
+	return ( $port | int( rand( 0xFFFF ) & $port_mask ) );
+}
+
+# Generate packet originating from CPE
+sub gen_tun_packet {
+	my ( $sz, $ether, $ipv6, $ipv4, $udp ) = @_;
+
+	my $hdr_ether = Net::Frame::Layer::ETH->new(
+		src => $ether->{'src'},
+		dst => $ether->{'dst'},
+		type => NF_ETH_TYPE_IPv6
+	)->pack;
+
+	my $hdr_ipv6 = Net::Frame::Layer::IPv6->new(
+		nextHeader => NF_IPv6_PROTOCOL_IPIP,
+		hopLimit => IPv6_HOP_LIMIT,
+		src => $ipv6->{'src'},
+		dst => $ipv6->{'dst'},
+		payloadLength => $sz + NF_IPv4_HDR_LEN + UDP_HDR_LEN
+	)->pack;
+
+	my $hdr_ipv4 = Net::Frame::Layer::IPv4->new(
+		length => $sz + UDP_HDR_LEN + NF_IPv4_HDR_LEN,
+		ttl => IPv4_TIME_TO_LIVE,
+		protocol => NF_IPv4_PROTOCOL_UDP,
+		src => $ipv4->{'src'},
+		dst => $ipv4->{'dst'}
+	)->pack;
+
+	my $hdr_udp = Net::Frame::Layer::UDP->new(
+		src => $udp->{'src'},
+		dst => $udp->{'dst'},
+		length => $sz + UDP_HDR_LEN
+	)->pack;
+	
+	my $pkt = pack( "H*", "de" x $sz );
+	$pkt = $hdr_ether . $hdr_ipv6 . $hdr_ipv4 . $hdr_udp . $pkt;
+
+	my $pkt_size = length( $pkt );
+
+	my $hdr = {
+		tv_sec => 0,
+		tv_usec => 0,
+		len => $pkt_size,
+		caplen => $pkt_size
+	};
+
+	return ( $hdr, $pkt );
+}
+
+# Generate packet originating from the internet
+sub gen_inet_packet {
+	my ( $sz, $ether, $ipv4, $udp ) = @_;
+
+	my $hdr_ether = Net::Frame::Layer::ETH->new(
+		src => $ether->{'src'},
+		dst => $ether->{'dst'},
+		type => NF_ETH_TYPE_IPv4
+	)->pack;
+
+	my $hdr_ipv4 = Net::Frame::Layer::IPv4->new(
+		length => $sz + UDP_HDR_LEN + NF_IPv4_HDR_LEN,
+		ttl => IPv4_TIME_TO_LIVE,
+		protocol => NF_IPv4_PROTOCOL_UDP,
+		src => $ipv4->{'src'},
+		dst => $ipv4->{'dst'}
+	)->pack;
+
+	my $hdr_udp = Net::Frame::Layer::UDP->new(
+		src => $udp->{'src'},
+		dst => $udp->{'dst'},
+		length => $sz + UDP_HDR_LEN
+	)->pack;
+	
+	my $pkt = pack( "H*", "de" x $sz );
+	$pkt = $hdr_ether . $hdr_ipv4 . $hdr_udp . $pkt;
+
+	my $pkt_size = length( $pkt );
+
+	my $hdr = {
+		tv_sec => 0,
+		tv_usec => 0,
+		len => $pkt_size,
+		caplen => $pkt_size
+	};
+
+	return ( $hdr, $pkt );
+}
+
+# Read bindings file
+sub read_bindings {
+	my ( $file ) = @_;
+
+	print "Reading bindings file...\n";
+
+	my @rows;
+
+	open my $fh, "<:encoding(utf8)", $file or die $file . ": $!";
+LINE:	while ( my $line = <$fh> ) {
+		next if ($line =~ /^--.*/);  # Skip comments
+		
+		my ($ip6, $mac, $ip4, $port);
+		if ($line =~ /\s*\{.*\},\s*$/) {  # Weak check for a data line...
+
+			$line =~ /ip6\s*=\s*ip6\("([^\)]*)"\)/ && do { $ip6 = trim($1); };
+			unless ( inet_pton( AF_INET6, $ip6 ) ) { print "ERROR - Invalid ipv6: $ip6\n"; next LINE; }
+
+			$line =~ /ip\s*=\s*ip\("([^\)]*)"\)/ && do { $ip4 = trim($1); };
+			unless ( inet_pton( AF_INET, $ip4 ) ) { print "ERROR - Invalid ipv4: $ip4\n"; next LINE; }
+
+			$line =~ /mac\s*=\s*mac\("([^\)]*)"\)/ && do { $mac = trim($1); };
+			unless ( $mac =~ /^([0-9a-f]{2}([:-]|$)){6}$/i ) { print "ERROR - Invalid mac: $mac\n"; next LINE; }
+
+			$line =~ /port\s*=\s*([0-9]*)/ && do { $port = trim($1); };
+			unless ( int($port) ) { print "ERROR - Invalid port number: $port\n"; next LINE; }
+
+			push @rows, {
+				ipv6 => $ip6,
+				mac => $mac,
+				ipv4 => $ip4,
+				port => $port
+			}
+		}
+	}
+	close $fh;
+
+	return @rows;
+}
+
+# Generate packets originating from CPE
+sub gen_tun_pcap {
+	my ( $binding_file, $pkt_count ) = @_;
+	my @bind = read_bindings($binding_file);
+	my $idx = 0;
+	my $row;
+	my $public_port = 0;
+
+	print "Generating $pkt_count Tunnel packets...\n";
+
+	my $max = @bind;
+	for( my $i=0; $i<$pkt_count; $i++ ) {
+
+		$idx = rand $max;
+		$row = @bind[$idx];
+
+		$public_port = rand_port( $row->{port}, 0x3f );
+
+		my ( $hdr, $pkt ) = gen_tun_packet(
+			$size,
+			{ src => $row->{mac}, dst => ETHER_STATIC_MAC },
+			{ src => $row->{ipv6}, dst => IPv6_STATIC_IP },
+			{ src => $row->{ipv4}, dst => IPv4_STATIC_IP },
+			{ src => $public_port, dst => UDP_STATIC_PORT }
+		);
+
+		pcap_dump( $dumper, $hdr, $pkt );
+	}
+}
+
+# Generate packets originating from the internet
+sub gen_inet_pcap {
+	my ( $binding_file, $pkt_count ) = @_;
+	my @bind = read_bindings($binding_file);
+	my $idx = 0;
+	my $row;
+	my $public_port = 0;
+
+	print "Generating $pkt_count Internet packets...\n";
+
+	my $max = @bind;
+	for( my $i=0; $i<$pkt_count; $i++ ) {
+
+		$idx = rand $max;
+		$row = @bind[$idx];
+
+		$public_port = rand_port( $row->{port}, 0x3f );
+
+		my ( $hdr, $pkt ) = gen_inet_packet(
+			$size,
+			{ src => ETHER_STATIC_MAC, dst => $row->{mac} },
+			{ src => IPv4_STATIC_IP, dst => $row->{ipv4} },
+			{ src => UDP_STATIC_PORT, dst => $public_port }
+		);
+
+		pcap_dump( $dumper, $hdr, $pkt );
+	}
+}