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use server; |
use server; |
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use File::Slurp; |
use File::Slurp; |
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use Net::Ping; |
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use format; |
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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 { |
sub conf { |
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my $ip = shift; |
my $ip = shift; |
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$default = $_[1] |
$default = $_[1] |
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} |
} |
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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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|
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return $value; |
return $value; |
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} |
} |
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sub next_ip($) { |
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my $mac = shift; |
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my $p = Net::Ping->new; |
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my $prefix = $server::ip; |
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$prefix =~ s{\.\d+$}{.}; |
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my $addr = $server::ip_from || die; |
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my $ip = $prefix . $addr; |
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while ( -e ip_path($ip) || $p->ping( $ip, 0.7 ) ) { |
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$ip = $prefix . $addr++; |
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die "all addresses allocated!" if $addr == $server::ip_to; |
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warn "skip $ip\n"; |
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} |
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warn "next_ip $ip\n"; |
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mkdir ip_path($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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return $ip; |
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} |
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sub ip_from_mac($) { |
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my $mac = shift; |
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$mac = lc $mac; |
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$mac =~ s{:}{}g; |
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my $mac_path = mac_path $mac; |
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return unless -e $mac_path; |
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my $ip; |
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if ( -f $mac_path ) { |
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$ip = read_file $mac_path; |
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unlink $mac_path; |
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symlink ip_path($ip), $mac_path; |
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warn "I: upgrade to mac symlink $mac_path\n"; |
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} elsif ( -l $mac_path ) { |
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$ip = readlink $mac_path; |
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$ip =~ s{^.+/([^/]+)$}{$1}; |
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} else { |
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die "$mac_path not file or symlink"; |
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} |
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return $ip; |
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} |
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sub mac_from_ip($) { |
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my $ip = shift; |
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return read_file ip_path($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; |