added ipv6 support

perftest.pl

 
 use strict;
 use IO::Socket::INET;
+use IO::Socket::INET6;
 use Time::HiRes qw(sleep);
 use warnings;
 
 	exit 1;
 }
 
-if ( $dest !~ /^(\d+\.\d+\.\d+\.\d+)$/ ) {
-	print STDERR "destination IP must be a valid IPv4 address\n";
+if ( $dest !~ /^(\d+\.\d+\.\d+\.\d+)$/ && $dest !~ /^[0-9a-fA-F:]+$/ ) {
+	print STDERR "destination IP must be a valid IPv4/IPv6 address\n";
 	exit 1;
 }
 
 sub main {
 	my($clients, $leasetime, $floodclients, $floodpps, $dest, $destport)=@_;
 
-	# pseudo packet, the only really relevant thing
-	# is that option 82 is present and at the right place
 	my $hdr = "";
+	my $sock;
+
+	if ( $dest =~ /:/ ) { # IPv6
+		$sock = IO::Socket::INET6->new(
+			Proto => 'udp',
+			PeerAddr => $dest,
+			PeerPort => $destport,
+		);
+
+		$hdr .= pack("H2", "01"); # msg-type
+		$hdr .= pack("H6", "000000"); # transaction-id
+		$hdr .= pack("C", 1); # DUID option
+		$hdr .= pack("C", 6); # DUID length
+	}
+	else { # IPv4
+		$sock = IO::Socket::INET->new(
+			Proto => 'udp',
+			PeerAddr => "$dest:$destport",
+		);
+		# pseudo packet, the only really relevant thing
+		# is that option 82 is present and at the right place
+		$hdr .= pack("H2","01"); # Opcode, bootrequest
+		$hdr .= pack("H2","01"); # Hardware type, ethernet
+		$hdr .= pack("H2","06"); # HW addr len, MAC = 6
+		$hdr .= pack("H2","01"); # hops, 1 relay
+		$hdr .= pack("H8","00000000"); # transaction ID
+		$hdr .= pack("H4","0000"); # secs
+		$hdr .= pack("H4","0000"); # flags
+		$hdr .= pack("H8","00000000"); # ciaddr
+		$hdr .= pack("H8","00000000"); # yiaddr
+		$hdr .= pack("H8","00000000"); # siaddr
+		$hdr .= pack("H8","00000000"); # giaddr
+		$hdr .= pack("H32","0"x32); # cihwaddr
+		$hdr .= pack("H128","0"x128); # hostname
+		$hdr .= pack("H256","0"x256); # boot filename
+		$hdr .= pack("H8","63825363"); # magic cookie
+
+		$hdr .= pack("C", 82); # opt 82
+		$hdr .= pack("C", 21); # opt 82 len
+		$hdr .= pack("C", 1); # subopt 1 (circuitid)
+		$hdr .= pack("C", 11); # subopt 1 len
+		$hdr .= "Hello World";
+		$hdr .= pack("C", 2); # subopt 2 (remoteid)
+		$hdr .= pack("C", 6); # subopt 2 len (mac)
+	}
+
 
-	$hdr .= pack("H2","01"); # Opcode, bootrequest
-	$hdr .= pack("H2","01"); # Hardware type, ethernet
-	$hdr .= pack("H2","06"); # HW addr len, MAC = 6
-	$hdr .= pack("H2","01"); # hops, 1 relay
-	$hdr .= pack("H8","00000000"); # transaction ID
-	$hdr .= pack("H4","0000"); # secs
-	$hdr .= pack("H4","0000"); # flags
-	$hdr .= pack("H8","00000000"); # ciaddr
-	$hdr .= pack("H8","00000000"); # yiaddr
-	$hdr .= pack("H8","00000000"); # siaddr
-	$hdr .= pack("H8","00000000"); # giaddr
-	$hdr .= pack("H32","0"x32); # cihwaddr
-	$hdr .= pack("H128","0"x128); # hostname
-	$hdr .= pack("H256","0"x256); # boot filename
-	$hdr .= pack("H8","63825363"); # magic cookie
-
-	$hdr .= pack("C", 82); # opt 82
-	$hdr .= pack("C", 21); # opt 82 len
-	$hdr .= pack("C", 1); # subopt 1 (circuitid)
-	$hdr .= pack("C", 11); # subopt 1 len
-	$hdr .= "Hello World";
-	$hdr .= pack("C", 2); # subopt 2 (remoteid)
-	$hdr .= pack("C", 6); # subopt 2 len (mac)
 
 
 	if ( $floodclients > 0 ) {
 		if ( !$pid ) {
 
 			my $int = 1/$floodpps/$floodclients;
-			my $sock = IO::Socket::INET->new(
-				Proto => 'udp',
-				PeerAddr => "$dest:$destport",
-			);
 
 			while(1) {
 				for(my $i=0; $i<$floodclients; $i++) {
 	}
 
 	my $int = $leasetime/3/$clients;
-	my $sock = IO::Socket::INET->new(
-		Proto => 'udp',
-		PeerAddr => "$dest:$destport",
-	);
 
 	while(1) {
 		for(my $i=0; $i<$clients; $i++) {