viewvc.cgi/mdap/mdap-server.pl

#!/usr/bin/perl

use strict;
use IO::Socket::Multicast;
use Data::Dump qw/dump/;

use constant GROUP => '224.0.0.103';
use constant PORT  => '3235';

my $debug = shift @ARGV;

my $resend_search_delay = 3;
my $tftp_path = '/srv/tftp/';

# tab-delimited list of user id/passwd to try on ants
my @try_accounts = ( "Administrator\t" );

my $passwd_path = $0;
$passwd_path =~ s/[^\/]+$/passwd/;

if (-e $passwd_path) {
        open(my $fh, $passwd_path) || die "can't open $passwd_path: $!";
        while(<$fh>) {
                chomp;
                next if /^#/ || /^$/ || /^\s+$/;
                if (/^\S+\t\S+$/) {
                        push @try_accounts, $_;
                } else {
                        warn "invalid $passwd_path entry: $_\n";
                }
        }
        print "found ", $#try_accounts, " accounts to try on password protected ants\n";
}

warn "search for ants every ${resend_search_delay}s\ntftp server path: $tftp_path\n";

sub fw {
        my ($board, $offset,$len) = @_;
        open(my $fh, "$tftp_path/$board") || die "Can't open image $tftp_path/$board: $!";
        my $b;
        seek($fh, $offset, 0) || die "can't seek to $offset: $!";
        read($fh, $b, $len) || die "can't read $len bytes from $offset: $!";
        close($fh);
        return $b;
}

sub fw_build {
        my $board_name = shift || return 0;
        my $v = join('.', unpack('CCCC',fw($board_name,0x20,4)) );
        print "# fw_build $board_name $v\n";
        return $v;
}

sub fw_exists {
        my $board = shift;
        return -e "$tftp_path/$board";
}

my $sock = IO::Socket::Multicast->new(LocalPort=>PORT,ReuseAddr=>1);
$sock->mcast_add(GROUP) || die "Couldn't set group: $!\n";
$sock->mcast_ttl(1);

sub ant2hash {
        my $data = shift;
        my $hash;
        map {
                if ( m/:/ ) {
                        my ($n,$v) = split(/:/,$_,2);
                        $hash->{$n} = $v;
                }
        } split(/[\n\r]/, $data);
        return $hash;
}

sub mdap_send {
        my $data = shift;

        my $xor = 0;
        map { $xor ^= ord($_) } split(//,$data);
        $data .= sprintf('%02X', $xor);

        $sock->mcast_send( $data, GROUP . ':' . PORT );
        if ($debug) {
                warn ">> ", dump( $data ), $/;
        } else {
                $data =~ s/\s+/ /gi;
                warn ">> ", substr($data,0,70), $/;
        }
}

my $ant_passwd_try;

sub ant_credentials {
        my $ant = shift || die "no ant?";
        my $i = $ant_passwd_try->{$ant} || 0;
        my ($user_id,$user_pwd) = split(/\t/, $try_accounts[$i]);
        #warn "ant $ant as [$i] $user_id / $user_pwd\n";
        return ($user_id,$user_pwd);
}

sub ant_another_passwd {
        my $ant = shift || die "no ant?";
        $ant_passwd_try->{$ant}++;
        $ant_passwd_try->{$ant} = 0 if ( $ant_passwd_try->{$ant} > $#try_accounts );
}

local $SIG{ALRM} = sub {
        mdap_send("ANT-SEARCH MDAP/1.1\r\n");
        alarm( $resend_search_delay );
};

alarm( $resend_search_delay );

mdap_send("ANT-SEARCH MDAP/1.1\r\n");

while (1) {
        my $data;
        next unless $sock->recv($data,1024);

        if ( $data =~ m#^(INFO|ANT-SEARCH|EXEC-CLI|REPLY-\S+)\s(MDAP)/(\d+\.\d+)# ) {

                my ($type,$proto,$mdap_ver) = ($1,$2,$3);

                my $h = ant2hash($data);

                my $client_version = $h->{'MDAP-VERSION'};
                $mdap_ver = $client_version if ($client_version);

                print "<< $type $proto/$mdap_ver << ", length($data), " bytes\n";

                warn dump($h),$/ if ($debug);

                # we are getting our own messages (since our source port
                # is same as destination)
                next if ( $type =~ m#^(INFO|ANT-SEARCH|EXEC-CLI)# );

                my $ant = $h->{'ANT-ID'} || die "no ANT-ID in ", dump( $h );

                my ($user_id,$user_pwd) = ant_credentials( $ant );

                if ($type eq 'REPLY-ANT-SEARCH') {
                        mdap_send("INFO MDAP/$mdap_ver\r\nSEQ-NR:1\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
                } elsif ($type eq 'REPLY-INFO') {

                        if ($h->{'SEQ-NR'} < 0) {
                                warn "!! password protected ant $ant, skipping\n";
                                ant_another_passwd( $ant );
                                next;
                        }

                        my $board = $h->{'_BOARD_NAME'} || die "no _BOARD_NAME?";
                        if ( fw_exists( $board ) ) {
                                my $build = $h->{'_BUILD'} || die "no _BUILD?";
                                my $new_build = fw_build( $board );
                                if ( $build ne $new_build ) {
                                        print "UPDATE STEP 1 on ant $ant version $build -> $new_build\n";
                                        mdap_send("EXEC-CLI MDAP/$mdap_ver\r\nCLI-CMD:software upgrade\r\nSEQ-NR:1\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
                                } else {
                                        print "OK ant $ant allready updated...\n";
                                }
                        } else {
                                print "!! NO FIRMWARE for $board in $tftp_path for ant $ant, skipping update\n";
                        }
                } elsif ( $type eq 'REPLY-EXEC-CLI' && $h->{'SEQ-NR'} == 1 ) {
                                print "UPDATE STEP 2 on ant $ant\n";
                                mdap_send("EXEC-CLI MDAP/$mdap_ver\r\nSEQ-NR:2\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
                } else {
                        print "!! reply ignored ", dump( $h ), $/;
                }

        } else {
                warn "<=" x 15, "\n", $data, "\n", "<=" x 15, "\n";
        }
}
1	dpavlin	2	#!/usr/bin/perl
2
3			use strict;
4			use IO::Socket::Multicast;
5			use Data::Dump qw/dump/;
6
7			use constant GROUP => '224.0.0.103';
8			use constant PORT => '3235';
9
10	dpavlin	8	my $debug = shift @ARGV;
11
12	dpavlin	2	my $resend_search_delay = 3;
13	dpavlin	7	my $tftp_path = '/srv/tftp/';
14	dpavlin	2
15	dpavlin	17	# tab-delimited list of user id/passwd to try on ants
16			my @try_accounts = ( "Administrator\t" );
17	dpavlin	14
18	dpavlin	17	my $passwd_path = $0;
19			$passwd_path =~ s/[^\/]+$/passwd/;
20
21			if (-e $passwd_path) {
22			open(my $fh, $passwd_path) \|\| die "can't open $passwd_path: $!";
23			while(<$fh>) {
24			chomp;
25			next if /^#/ \|\| /^$/ \|\| /^\s+$/;
26			if (/^\S+\t\S+$/) {
27			push @try_accounts, $_;
28			} else {
29			warn "invalid $passwd_path entry: $_\n";
30			}
31			}
32			print "found ", $#try_accounts, " accounts to try on password protected ants\n";
33			}
34
35	dpavlin	9	warn "search for ants every ${resend_search_delay}s\ntftp server path: $tftp_path\n";
36
37	dpavlin	7	sub fw {
38			my ($board, $offset,$len) = @_;
39			open(my $fh, "$tftp_path/$board") \|\| die "Can't open image $tftp_path/$board: $!";
40			my $b;
41			seek($fh, $offset, 0) \|\| die "can't seek to $offset: $!";
42			read($fh, $b, $len) \|\| die "can't read $len bytes from $offset: $!";
43			close($fh);
44			return $b;
45			}
46
47			sub fw_build {
48			my $board_name = shift \|\| return 0;
49			my $v = join('.', unpack('CCCC',fw($board_name,0x20,4)) );
50			print "# fw_build $board_name $v\n";
51			return $v;
52			}
53
54			sub fw_exists {
55			my $board = shift;
56			return -e "$tftp_path/$board";
57			}
58
59	dpavlin	2	my $sock = IO::Socket::Multicast->new(LocalPort=>PORT,ReuseAddr=>1);
60			$sock->mcast_add(GROUP) \|\| die "Couldn't set group: $!\n";
61			$sock->mcast_ttl(1);
62
63			sub ant2hash {
64			my $data = shift;
65			my $hash;
66			map {
67			if ( m/:/ ) {
68			my ($n,$v) = split(/:/,$_,2);
69			$hash->{$n} = $v;
70			}
71			} split(/[\n\r]/, $data);
72			return $hash;
73			}
74
75			sub mdap_send {
76			my $data = shift;
77	dpavlin	14
78			my $xor = 0;
79			map { $xor ^= ord($_) } split(//,$data);
80			$data .= sprintf('%02X', $xor);
81
82			$sock->mcast_send( $data, GROUP . ':' . PORT );
83	dpavlin	9	if ($debug) {
84			warn ">> ", dump( $data ), $/;
85			} else {
86			$data =~ s/\s+/ /gi;
87			warn ">> ", substr($data,0,70), $/;
88			}
89	dpavlin	2	}
90
91	dpavlin	17	my $ant_passwd_try;
92
93			sub ant_credentials {
94			my $ant = shift \|\| die "no ant?";
95			my $i = $ant_passwd_try->{$ant} \|\| 0;
96			my ($user_id,$user_pwd) = split(/\t/, $try_accounts[$i]);
97			#warn "ant $ant as [$i] $user_id / $user_pwd\n";
98			return ($user_id,$user_pwd);
99			}
100
101			sub ant_another_passwd {
102			my $ant = shift \|\| die "no ant?";
103			$ant_passwd_try->{$ant}++;
104			$ant_passwd_try->{$ant} = 0 if ( $ant_passwd_try->{$ant} > $#try_accounts );
105			}
106
107	dpavlin	2	local $SIG{ALRM} = sub {
108	dpavlin	14	mdap_send("ANT-SEARCH MDAP/1.1\r\n");
109	dpavlin	2	alarm( $resend_search_delay );
110			};
111
112			alarm( $resend_search_delay );
113
114	dpavlin	14	mdap_send("ANT-SEARCH MDAP/1.1\r\n");
115	dpavlin	7
116	dpavlin	2	while (1) {
117			my $data;
118			next unless $sock->recv($data,1024);
119
120	dpavlin	9	if ( $data =~ m#^(INFO\|ANT-SEARCH\|EXEC-CLI\|REPLY-\S+)\s(MDAP)/(\d+\.\d+)# ) {
121	dpavlin	2
122	dpavlin	9	my ($type,$proto,$mdap_ver) = ($1,$2,$3);
123	dpavlin	2
124			my $h = ant2hash($data);
125
126	dpavlin	9	my $client_version = $h->{'MDAP-VERSION'};
127			$mdap_ver = $client_version if ($client_version);
128	dpavlin	7
129	dpavlin	9	print "<< $type $proto/$mdap_ver << ", length($data), " bytes\n";
130	dpavlin	2
131	dpavlin	8	warn dump($h),$/ if ($debug);
132
133	dpavlin	17	# we are getting our own messages (since our source port
134			# is same as destination)
135	dpavlin	9	next if ( $type =~ m#^(INFO\|ANT-SEARCH\|EXEC-CLI)# );
136
137			my $ant = $h->{'ANT-ID'} \|\| die "no ANT-ID in ", dump( $h );
138
139	dpavlin	17	my ($user_id,$user_pwd) = ant_credentials( $ant );
140
141	dpavlin	2	if ($type eq 'REPLY-ANT-SEARCH') {
142	dpavlin	14	mdap_send("INFO MDAP/$mdap_ver\r\nSEQ-NR:1\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
143	dpavlin	2	} elsif ($type eq 'REPLY-INFO') {
144	dpavlin	15
145			if ($h->{'SEQ-NR'} < 0) {
146			warn "!! password protected ant $ant, skipping\n";
147	dpavlin	17	ant_another_passwd( $ant );
148	dpavlin	15	next;
149			}
150
151	dpavlin	7	my $board = $h->{'_BOARD_NAME'} \|\| die "no _BOARD_NAME?";
152			if ( fw_exists( $board ) ) {
153	dpavlin	14	my $build = $h->{'_BUILD'} \|\| die "no _BUILD?";
154			my $new_build = fw_build( $board );
155			if ( $build ne $new_build ) {
156			print "UPDATE STEP 1 on ant $ant version $build -> $new_build\n";
157			mdap_send("EXEC-CLI MDAP/$mdap_ver\r\nCLI-CMD:software upgrade\r\nSEQ-NR:1\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
158	dpavlin	7	} else {
159			print "OK ant $ant allready updated...\n";
160			}
161	dpavlin	2	} else {
162	dpavlin	7	print "!! NO FIRMWARE for $board in $tftp_path for ant $ant, skipping update\n";
163	dpavlin	2	}
164	dpavlin	3	} elsif ( $type eq 'REPLY-EXEC-CLI' && $h->{'SEQ-NR'} == 1 ) {
165	dpavlin	7	print "UPDATE STEP 2 on ant $ant\n";
166	dpavlin	14	mdap_send("EXEC-CLI MDAP/$mdap_ver\r\nSEQ-NR:2\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n");
167	dpavlin	2	} else {
168	dpavlin	8	print "!! reply ignored ", dump( $h ), $/;
169	dpavlin	2	}
170
171			} else {
172	dpavlin	8	warn "<=" x 15, "\n", $data, "\n", "<=" x 15, "\n";
173	dpavlin	2	}
174			}