almost working.

rftestrx2pcap.pl

@@ -0,0 +1,87 @@
+#!/usr/bin/perl -w
+
+use Device::SerialPort;
+use Term::ReadKey;
+use Getopt::Long;
+use Time::HiRes qw(usleep gettimeofday);
+
+use strict;
+
+my $filename = '';
+my $second = '';
+my $term = '/dev/ttyUSB0';
+my $baud = '115200';
+my $verbose;
+
+GetOptions (
+	    'terminal=s' => \$term, 
+	    'baud=s' => \$baud,
+    );
+
+$| = 1;
+
+# TODO: add help argument
+#    print "Example usage: rftestrx2pcap.pl -t /dev/ttyS0 -b 9600\n";
+#    exit;
+
+my $ob = Device::SerialPort->new ($term) or die "Can't start $term\n";
+    # next test will die at runtime unless $ob
+
+$ob->baudrate($baud);
+$ob->parity('none');
+$ob->databits(8);
+$ob->stopbits(1);
+$ob->read_const_time(1000); # 1 second per unfulfilled "read" call
+
+my $str = '';
+my ($sec, $usec, $len);
+my @frame;
+
+my $magic = 0xa1b2c3d4;
+my $major = 2;
+my $minor = 4;
+my $zone = 0;
+my $sig = 0;
+my $snaplen = 0xffff;
+my $network = 195; # 802.15.4
+
+print pack('LSSLLLL',($magic,$major,$minor,$zone,$sig,$snaplen,$network));
+
+while(1) {
+    my ($count, $c) = $ob->read(1);
+
+    if (defined($count) && ($count != 0)) {
+	$str .= $c;
+	# match if ends in \n or \r and process line
+	if(($str =~ /\n\r$/) ||
+	   ($str =~ /\r\n$/)) {
+	    if($str =~ /^rftest/) {
+		#new packet
+		($sec, $usec) = gettimeofday;
+#		print "rftestline: $sec $usec $str\n\r";		
+	    } elsif($str =~ /^\s*data/) {
+		#packet payload
+		$str =~ /data: 0x\d+ (.+)/;
+		my @data = split(' ',$1);
+#		print "dataline: ";		
+		($len, @data) = @data;
+#		print "\n\r"; 
+		#write out pcap entry
+		print pack('LLLL',($sec,$usec,scalar(@data),scalar(@data)+2));
+		@frame = @data[0,1];
+		print pack ('CC',($frame[1],$frame[0]));
+		foreach my $data (@data[2..scalar(@data)]) {
+		    print pack ('C',hex($data));
+		}		
+	    }
+
+	    $str = '';
+	}
+    }
+}
+
+$ob -> close or die "Close failed: $!\n";
+ReadMode 0;
+undef $ob;  # closes port AND frees memory in perl
+exit;
+