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dpavlin |
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#!/usr/bin/perl |
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use strict; |
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use IO::Socket::Multicast; |
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use Data::Dump qw/dump/; |
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use Getopt::Long; |
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my $GROUP = '224.0.0.103'; |
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my $PORT = '3235'; |
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my $debug = 0; |
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my $quiet = 1; |
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my $verbose = 0; |
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my $resend_search_delay = 3; |
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my $tftp_path = '/srv/tftp/'; |
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GetOptions( |
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"port=i" => \$PORT, |
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"group=s" => \$GROUP, |
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"debug!" => \$debug, |
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"quiet!" => \$quiet, |
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"verbose!" => \$verbose, |
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"search=i" => \$resend_search_delay, |
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"tftp=s" => \$tftp_path, |
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); |
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$quiet = 0 if $verbose; |
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# tab-delimited list of user id/passwd to try on ants |
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my @try_accounts = ( "Administrator\t" ); |
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my $passwd_path = $0; |
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$passwd_path =~ s/[^\/]+$/passwd/; |
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if (-e $passwd_path) { |
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open(my $fh, $passwd_path) || die "can't open $passwd_path: $!"; |
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while(<$fh>) { |
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chomp; |
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next if /^#/ || /^$/ || /^\s+$/; |
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if (/^\S+\t\S+$/) { |
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push @try_accounts, $_; |
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} else { |
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warn "invalid $passwd_path entry: $_\n"; |
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} |
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} |
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print "found ", $#try_accounts + 1, " accounts to try on password protected ants\n"; |
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} |
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warn "search for ants every ${resend_search_delay}s\ntftp server path: $tftp_path\n"; |
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sub fw { |
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my ($board, $offset,$len) = @_; |
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open(my $fh, "$tftp_path/$board") || die "Can't open image $tftp_path/$board: $!"; |
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my $b; |
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seek($fh, $offset, 0) || die "can't seek to $offset: $!"; |
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read($fh, $b, $len) || die "can't read $len bytes from $offset: $!"; |
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close($fh); |
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return $b; |
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} |
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sub fw_build { |
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my $board_name = shift || return 0; |
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my $v = join('.', unpack('CCCC',fw($board_name,0x20,4)) ); |
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print "# fw_build $board_name $v\n" unless $quiet; |
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return $v; |
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} |
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sub fw_exists { |
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my $board = shift; |
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return -e "$tftp_path/$board"; |
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} |
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my $sock = IO::Socket::Multicast->new(LocalPort=>$PORT,ReuseAddr=>1); |
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$sock->mcast_add($GROUP) || die "Couldn't set group: $!\n"; |
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$sock->mcast_ttl(1); |
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sub ant2hash { |
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my $data = shift; |
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my $hash; |
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map { |
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if ( m/:/ ) { |
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my ($n,$v) = split(/:/,$_,2); |
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$hash->{$n} = $v; |
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} |
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} split(/[\n\r]/, $data); |
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return $hash; |
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} |
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sub mdap_send { |
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my $data = shift; |
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my $xor = 0; |
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map { $xor ^= ord($_) } split(//,$data); |
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$data .= sprintf('%02X', $xor); |
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$sock->mcast_send( $data, "${GROUP}:${PORT}" ); |
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if ($debug) { |
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warn ">> ", dump( $data ), $/; |
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} elsif( ! $quiet ) { |
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$data =~ s/\s+/ /gi; |
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warn ">> ", substr($data,0,70), $/; |
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} |
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} |
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my $ant_passwd_try; |
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sub ant_credentials { |
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my $ant = shift || die "no ant?"; |
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my $i = $ant_passwd_try->{$ant} || 0; |
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my ($user_id,$user_pwd) = split(/\t/, $try_accounts[$i]); |
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#warn "ant $ant as [$i] $user_id / $user_pwd\n"; |
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return ($user_id,$user_pwd); |
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} |
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sub ant_another_passwd { |
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my $ant = shift || die "no ant?"; |
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$ant_passwd_try->{$ant}++; |
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$ant_passwd_try->{$ant} = 0 if ( $ant_passwd_try->{$ant} > $#try_accounts ); |
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} |
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local $SIG{ALRM} = sub { |
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mdap_send("ANT-SEARCH MDAP/1.1\r\n"); |
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alarm( $resend_search_delay ); |
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}; |
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alarm( $resend_search_delay ); |
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mdap_send("ANT-SEARCH MDAP/1.1\r\n"); |
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while (1) { |
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my $data; |
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next unless $sock->recv($data,1024); |
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if ( $data =~ m#^(INFO|ANT-SEARCH|EXEC-CLI|REPLY-\S+)\s(MDAP)/(\d+\.\d+)# ) { |
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my ($type,$proto,$mdap_ver) = ($1,$2,$3); |
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my $h = ant2hash($data); |
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my $client_version = $h->{'MDAP-VERSION'}; |
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$mdap_ver = $client_version if ($client_version); |
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print "<< $type $proto/$mdap_ver << ", length($data), " bytes\n" unless $quiet; |
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warn dump($h),$/ if ($debug); |
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# we are getting our own messages (since our source port |
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# is same as destination) |
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next if ( $type =~ m#^(INFO|ANT-SEARCH|EXEC-CLI)# ); |
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my $ant = $h->{'ANT-ID'} || die "no ANT-ID in ", dump( $h ); |
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my ($user_id,$user_pwd) = ant_credentials( $ant ); |
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if ($type eq 'REPLY-ANT-SEARCH') { |
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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"); |
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} elsif ($type eq 'REPLY-INFO') { |
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if ($h->{'SEQ-NR'} < 0) { |
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warn "!! password protected ant $ant, skipping\n"; |
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ant_another_passwd( $ant ); |
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next; |
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} |
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my $board = $h->{'_BOARD_NAME'} || die "no _BOARD_NAME?"; |
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if ( fw_exists( $board ) ) { |
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my $build = $h->{'_BUILD'} || die "no _BUILD?"; |
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my $new_build = fw_build( $board ); |
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if ( $build ne $new_build ) { |
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print "UPDATE STEP 1 on ant $ant version $build -> $new_build\n"; |
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mdap_send("EXEC-CLI MDAP/$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"); |
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} else { |
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print "OK ant $ant allready updated...\n"; |
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} |
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} else { |
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print "!! NO FIRMWARE for $board in $tftp_path for ant $ant, skipping update\n"; |
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} |
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} elsif ( $type eq 'REPLY-EXEC-CLI' && $h->{'SEQ-NR'} == 1 ) { |
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print "UPDATE STEP 2 on ant $ant\n"; |
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mdap_send("EXEC-CLI MDAP/$mdap_ver\r\nSEQ-NR:2\r\nTO-ANT:$ant\r\nUSER-ID:$user_id\r\nUSER-PWD:$user_pwd\r\n"); |
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} else { |
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print "!! reply ignored ", dump( $h ), $/; |
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} |
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} else { |
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warn "<=" x 15, "\n", $data, "\n", "<=" x 15, "\n"; |
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} |
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} |
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