8 use Data::Dump qw/dump/;
17 our $debug = $server::debug;
21 $path =~ s{(^.*)/[^/]+$}{$1};
22 mkdir $path unless -d $path;
26 sub mac_path { $server::conf . '/mac/' . $_[0] }
27 sub ip_path { $server::conf . '/ip/' . join('/', @_) }
32 $value = readlink $path;
33 $value =~ s{.*/([^/]+)$}{$1};
34 } elsif ( -f $path ) {
35 $value = read_file $path;
37 warn "W: $path not file or symlink\n";
45 my ( $default, $value );
48 } elsif ( $#_ == 1 && $_[0] eq 'default' ) {
52 my $path = ip_path $ip;
53 mkdir $path unless -d $path;
56 if ( defined $value ) {
58 write_file $path, $value;
59 warn "update $path = $value";
60 } elsif ( ! -e $path && defined $default ) {
62 write_file $path, $default;
63 warn "default $path = $default";
65 } elsif ( -f $path ) {
66 $value = read_file $path;
69 warn "# $name missing $path\n" if $debug;
76 my $path = ip_path $ip || return;
78 foreach my $file ( glob("$path/*"), glob("$path/*/*") ) {
80 $name =~ s{^$path/+}{} || die "can't remove $path from $name";
81 $conf->{ $name } = read_file $file if -f $file;
87 $mac = format::mac($mac);
89 if ( $server::new_clients > 0 ) {
90 warn "# clients left: ", --$server::new_clients;
92 warn "W: no new clients accepted";
96 my $prefix = $server::ip;
97 $prefix =~ s{\.\d+$}{.};
98 my $addr = $server::ip_from || die;
99 my $ip = $prefix . $addr;
101 while ( -e ip_path($ip) || ping::host($ip) ) {
102 $ip = $prefix . $addr++;
103 die "all addresses allocated!" if $addr == $server::ip_to;
107 warn "next_ip $ip\n";
109 save_ip_mac( $ip, $mac );
116 $mac = format::mac($mac);
117 return if $mac eq '00:00:00:00:00:00' || $ip eq '0.0.0.0';
119 mkdir ip_path($ip) unless -e ip_path($ip);
121 my $mac_path = mac_path($mac);
122 unlink $mac_path if -l $mac_path; # XXX audit?
123 symlink ip_path($ip), $mac_path;
124 write_file( ip_path($ip,'mac'), $mac );
129 $mac = format::mac($mac);
131 my $mac_path = mac_path $mac;
132 return unless -e $mac_path;
136 if ( -f $mac_path ) {
137 $ip = read_file $mac_path;
139 symlink ip_path($ip), $mac_path;
140 warn "I: upgrade to mac symlink $mac_path\n";
141 } elsif ( -l $mac_path ) {
142 $ip = conf_value $mac_path;
144 die "$mac_path not file or symlink";
152 conf_value ip_path($ip, 'mac');
156 my ($old, $new) = @_;
157 return if $old eq $new;
158 my $mac = mac_from_ip($old) || die "no mac for $old";
159 rename ip_path($old), ip_path($new);
160 unlink mac_path($mac);
161 symlink ip_path($new), mac_path($mac);
166 sort { ip::to_int($a) cmp ip::to_int($b) }
170 autocreate_params( $ip );
172 } glob("$server::conf/ip/*")
177 if ( my $mac = mac_from_ip $ip ) {
178 unlink "$server::conf/mac/$mac";
180 rmtree "$server::conf/ip/$ip";
186 my @c = split(/\s+/,$_);
188 client::save_ip_mac( $c[0], $c[3] );
189 ( uc $c[3] => $c[5] )
192 } read_file('/proc/net/arp')
195 warn "# arp ",dump( $arp );
199 sub rebuild_mac_links {
200 warn "# rebuild mac links";
201 foreach my $ip ( all_ips ) {
202 my $mac = ip_path $ip, 'mac';
204 $mac = read_file $mac;
206 save_ip_mac( $ip, $mac );
207 warn "## $ip $mac\n";
212 sub autocreate_params {
214 my $mac = mac_from_ip $ip;
215 if ( $mac =~ m{^AC:DE:48:00:00} && ! defined conf( $ip, 'kvm' ) ) {
216 conf( $ip, 'kvm', default => kvm::nr_from_mac( $mac ) );
217 warn "# create kvm for $ip";