12 sub mac_path { $server::conf . '/mac/' . $_[0] }
13 sub ip_path { $server::conf . '/ip/' . join('/', @_) }
18 my ( $default, $value );
21 } elsif ( $#_ == 1 && $_[0] eq 'default' ) {
25 my $path = ip_path $ip;
26 mkdir $path unless -d $path;
29 if ( defined $value ) {
30 write_file $path, $value;
31 warn "update $path = $value";
32 } elsif ( ! -e $path && defined $default ) {
33 write_file $path, $default;
34 warn "default $path = $default";
36 } elsif ( -e $path ) {
38 $value = readlink $path;
39 $value =~ s{.*/([^/]+)$}{$1};
41 $value = read_file $path;
49 my $mac = client::conf( $ip, 'mac' ) || return '';
50 format::mac( $ip, @_ );
56 my $p = Net::Ping->new;
58 my $prefix = $server::ip;
59 $prefix =~ s{\.\d+$}{.};
60 my $addr = $server::ip_from || die;
61 my $ip = $prefix . $addr;
63 while ( -e ip_path($ip) || $p->ping( $ip, 0.7 ) ) {
64 $ip = $prefix . $addr++;
65 die "all addresses allocated!" if $addr == $server::ip_to;
73 symlink ip_path($ip), mac_path($mac);
74 write_file ip_path($ip,'mac'), $mac;
86 my $mac_path = mac_path $mac;
87 return unless -e $mac_path;
92 $ip = read_file $mac_path;
94 symlink ip_path($ip), $mac_path;
95 warn "I: upgrade to mac symlink $mac_path\n";
96 } elsif ( -l $mac_path ) {
97 $ip = readlink $mac_path;
98 $ip =~ s{^.+/([^/]+)$}{$1};
100 die "$mac_path not file or symlink";
108 return read_file ip_path($ip, 'mac');
112 my ($old, $new) = @_;
113 my $mac = mac_from_ip($old);
114 rename ip_path($old), ip_path($new);
115 unlink mac_path($mac);
116 symlink ip_path($new), mac_path($mac);