/[pxelator]/bin/tftpd.pl
This is repository of my old source code which isn't updated any more. Go to git.rot13.org for current projects!
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Contents of /bin/tftpd.pl

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Revision 17 - (show annotations)
Tue Jul 28 10:29:33 2009 UTC (10 years, 1 month ago) by dpavlin
File MIME type: text/plain
File size: 1908 byte(s)
read data from filesystem files and symlinks in conf/

1 #!/usr/bin/perl
2 use strict;
3 use lib 'lib';
4 use Net::TFTPd 0.03 qw(%OPCODES);
5
6 die "need to run $0 as root like this\nsudo $0\n" unless $< == 0;
7
8 sub tftp_dir {
9 my $dir = 'conf/' . readlink('conf/tftp.dir');
10 $dir =~ s{[^/]+/\.\./([^/]+)}{$1};
11 return $dir;
12 }
13
14 my $tftp_dir = tftp_dir;
15
16 die "no $tftp_dir\n" unless -e $tftp_dir;
17
18 # callback sub used to print transfer status
19 sub callback
20 {
21 my $req = shift;
22 if($req->{'_REQUEST_'}{'OPCODE'} eq $OPCODES{'RRQ'})
23 {
24 # RRQ
25 printf "block: %u\/%u\n", $req->{'_REQUEST_'}{'LASTACK'}, $req->{'_REQUEST_'}{'LASTBLK'};
26 }
27 elsif($req->{'_REQUEST_'}{'OPCODE'} eq $OPCODES{'WRQ'})
28 {
29 # WRQ
30 printf "block: %u\/%u\n", $req->{'_REQUEST_'}{'LASTBLK'}, $req->{'_REQUEST_'}{'LASTACK'};
31 } else {
32 warn "IGNORED: ", dump( $req );
33 }
34 }
35
36 # create the listener
37 my $listener = Net::TFTPd->new(
38 'RootDir' => $tftp_dir,
39 'Writable' => 0,
40 'Timeout' => 3600,
41 'CallBack' => \&callback,
42 # LocalAddr => '10.0.0.100',
43 # BlkSize => 8192,
44 # BlkSize => 512,
45 BlkSize => 1456, # IBM GE seems to be picky
46 Debug => 99,
47 ) or die Net::TFTPd->error;
48 printf "TFTP on %s:%d timeout: %d dir: $tftp_dir\n", $listener->{'LocalAddr'} ? $listener->{'LocalAddr'} : "'any address'", $listener->{'LocalPort'}, $listener->{'Timeout'};
49
50 while(1) {
51
52 # wait for any request (RRQ or WRQ)
53 if(my $request = $listener->waitRQ()) {
54
55 $tftp_dir = tftp_dir;
56
57 if ( $request->{RootDir} ne $tftp_dir ) {
58 $request->{RootDir} = $tftp_dir;
59 warn "new root: $tftp_dir\n";
60 }
61
62 # received request
63 printf "Received a %s for file '%s'\n", $OPCODES{$request->{'_REQUEST_'}{'OPCODE'}}, $request->{'_REQUEST_'}{'FileName'};
64
65 # process the request
66 if($request->processRQ()) {
67 print "OK, transfer completed successfully\n";
68 } else {
69 warn Net::TFTPd->error;
70 $request->processRQ();
71 }
72 } else {
73 # request not received (timed out waiting for request etc.)
74 warn Net::TFTPd->error;
75 }
76
77 }

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