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use strict; |
use strict; |
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use autodie; |
use autodie; |
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use server; |
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use File::Slurp; |
use File::Slurp; |
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use Net::Ping; |
use Net::Ping; |
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use server; |
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use format; |
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our $debug = $server::debug; |
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sub mkbasedir { |
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my $path = shift; |
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$path =~ s{(^.*)/[^/]+$}{$1}; |
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mkdir $path unless -d $path; |
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return $path; |
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} |
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sub mac_path { $server::conf . '/mac/' . $_[0] } |
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sub ip_path { $server::conf . '/ip/' . join('/', @_) } |
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sub conf_value { |
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my $path = shift; |
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my $value; |
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if ( -l $path ) { |
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$value = readlink $path; |
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$value =~ s{.*/([^/]+)$}{$1}; |
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} elsif ( -f $path ) { |
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$value = read_file $path; |
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} else { |
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warn "W: $path not file or symlink\n"; |
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} |
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return $value; |
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} |
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sub conf { |
sub conf { |
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my $ip = shift; |
my $ip = shift; |
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my $name = shift; |
my $name = shift; |
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$default = $_[1] |
$default = $_[1] |
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} |
} |
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my $path ="$server::conf/ip/$ip"; |
my $path = ip_path $ip; |
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mkdir $path unless -d $path; |
mkdir $path unless -d $path; |
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$path .= '/' . $name; |
$path .= '/' . $name; |
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if ( defined $value ) { |
if ( defined $value ) { |
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mkbasedir $path; |
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write_file $path, $value; |
write_file $path, $value; |
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warn "update $path = $value"; |
warn "update $path = $value"; |
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} elsif ( ! -e $path && defined $default ) { |
} elsif ( ! -e $path && defined $default ) { |
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mkbasedir $path; |
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write_file $path, $default; |
write_file $path, $default; |
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warn "default $path = $default"; |
warn "default $path = $default"; |
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$value = $default; |
$value = $default; |
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} elsif ( -e $path ) { |
} elsif ( -f $path ) { |
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if ( -l $path ) { |
$value = read_file $path; |
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$value = readlink $path; |
} else { |
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$value =~ s{.*/([^/]+)$}{$1}; |
warn "# $name missing $path\n" if $debug; |
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} else { |
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$value = read_file $path; |
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} |
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} |
} |
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return $value; |
return $value; |
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} |
} |
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sub mac { |
sub next_ip($) { |
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my ( $ip, $op ) = @_; |
my $mac = shift; |
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$op ||= 'html'; |
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my $mac = client::conf( $ip, 'mac' ); |
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return '' unless $mac; |
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$mac =~ s{(..)}{$1:}g; |
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$mac =~ s{:$}{}; |
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$mac = qq|<tt>$mac</tt>| if (caller(1))[3] =~ m{^httpd} && $op ne 'clean'; |
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return uc($mac); |
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} |
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sub next_ip { |
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my $p = Net::Ping->new; |
my $p = Net::Ping->new; |
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my $addr = $server::ip_from || die; |
my $addr = $server::ip_from || die; |
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my $ip = $prefix . $addr; |
my $ip = $prefix . $addr; |
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while ( -e "$server::conf/ip/$ip" || $p->ping( $ip, 0.7 ) ) { |
while ( -e ip_path($ip) || $p->ping( $ip, 0.7 ) ) { |
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$ip = $prefix . $addr++; |
$ip = $prefix . $addr++; |
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die "all addresses allocated!" if $addr == $server::ip_to; |
die "all addresses allocated!" if $addr == $server::ip_to; |
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warn "skip $ip\n"; |
warn "skip $ip\n"; |
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} |
} |
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warn "next_ip $ip\n"; |
warn "next_ip $ip\n"; |
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save_ip_mac( $ip, $mac ); |
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return $ip; |
return $ip; |
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} |
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sub save_ip_mac { |
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my ($ip,$mac) = @_; |
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mkdir ip_path($ip); |
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my $mac_path = mac_path($mac); |
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unlink $mac_path if -e $mac_path; # XXX audit? |
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symlink ip_path($ip), $mac_path; |
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write_file ip_path($ip,'mac'), $mac; |
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} |
} |
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sub ip_from_mac { |
sub ip_from_mac($) { |
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my $mac = shift; |
my $mac = shift; |
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$mac = lc $mac; |
$mac = lc $mac; |
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$mac =~ s{:}{}g; |
$mac =~ s{:}{}g; |
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my $mac_path = "$server::conf/mac/$mac"; |
my $mac_path = mac_path $mac; |
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return unless -e $mac_path; |
return unless -e $mac_path; |
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my $ip; |
my $ip; |
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if ( -f $mac_path ) { |
if ( -f $mac_path ) { |
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$ip = read_file $mac_path; |
$ip = read_file $mac_path; |
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unlink $mac_path; |
unlink $mac_path; |
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symlink "$server::conf/ip/$ip", $mac_path; |
symlink ip_path($ip), $mac_path; |
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warn "I: upgrade to mac symlink $mac_path\n"; |
warn "I: upgrade to mac symlink $mac_path\n"; |
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} elsif ( -l $mac_path ) { |
} elsif ( -l $mac_path ) { |
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$ip = readlink $mac_path; |
$ip = conf_value $mac_path; |
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$ip =~ s{^.+/([^/]+)$}{$1}; |
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} else { |
} else { |
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die "$mac_path not file or symlink"; |
die "$mac_path not file or symlink"; |
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} |
} |
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return $ip; |
return $ip; |
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} |
} |
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sub mac_from_ip($) { |
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my $ip = shift; |
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conf_value ip_path($ip, 'mac'); |
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} |
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sub change_ip($$) { |
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my ($old, $new) = @_; |
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my $mac = mac_from_ip($old); |
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rename ip_path($old), ip_path($new); |
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unlink mac_path($mac); |
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symlink ip_path($new), mac_path($mac); |
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} |
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1; |
1; |