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105 lines
2.2 KiB
Perl
Executable File
105 lines
2.2 KiB
Perl
Executable File
#!/usr/bin/perl -w
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use Device::SerialPort;
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use Term::ReadKey;
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use Getopt::Long;
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use Time::HiRes qw(usleep gettimeofday);
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use strict;
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my $filename = '';
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my $second = '';
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my $term = '/dev/ttyUSB0';
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my $baud = '115200';
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my $verbose;
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GetOptions (
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'terminal=s' => \$term,
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'baud=s' => \$baud,
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);
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$| = 1;
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# TODO: add help argument
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# print "Example usage: rftestrx2pcap.pl -t /dev/ttyS0 -b 9600\n";
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# exit;
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my $ob = Device::SerialPort->new ($term) or die "Can't start $term\n";
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# next test will die at runtime unless $ob
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$ob->baudrate($baud);
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$ob->parity('none');
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$ob->databits(8);
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$ob->stopbits(1);
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$ob->read_const_time(1000); # 1 second per unfulfilled "read" call
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my $str = '';
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my ($sec, $usec, $len);
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my @frame;
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my $magic = 0xa1b2c3d4;
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my $major = 2;
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my $minor = 4;
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my $zone = 0;
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my $sig = 0;
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my $snaplen = 0xffff;
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my $network = 230; # 802.15.4 no FCS
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my $newpacket = 0;
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my $len = 0;
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my $file_empty = 1;
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print pack('LSSLLLL',($magic,$major,$minor,$zone,$sig,$snaplen,$network));
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while(1) {
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my ($count, $c) = $ob->read(1);
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if (defined($count) && ($count != 0)) {
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$str .= $c;
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# match if ends in \n or \r and process line
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if(($str =~ /\n$/) ||
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($str =~ /\r$/)) {
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if($str =~ /^rftest-rx --- len 0x(\w\w)/) {
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#new packet
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($sec, $usec) = gettimeofday;
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$len = hex($1);
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print STDERR "rftestline: $sec $usec $len $str";
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$newpacket = 1;
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} elsif($str =~ /^\w+/) {
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# dataline, write out pcap entry
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$str =~ /(.+)/;
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chomp $str;
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my @data = split(' ',$1);
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# do header if this is a new packet
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if($newpacket == 1) {
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$newpacket = 0;
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print pack('LLLL',($sec,$usec,$len,$len));
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print STDERR "new packet: $sec $usec $len " . ($len) . "\n\r";
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# This header starts the file
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if ($file_empty == 1) {
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$file_empty = 0;
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}
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}
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# packet payload (don't start the file with a payload)
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if ($file_empty == 0) {
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print STDERR "dataline: ";
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print STDERR $str . "\n\r";
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foreach my $data (@data) {
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print pack ('C',hex($data));
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}
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}
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}
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$str = '';
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}
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}
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}
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$ob -> close or die "Close failed: $!\n";
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ReadMode 0;
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undef $ob; # closes port AND frees memory in perl
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exit;
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