| 5 |
use autodie; |
use autodie; |
| 6 |
|
|
| 7 |
use File::Slurp; |
use File::Slurp; |
| 8 |
use Net::Ping; |
use Data::Dump qw/dump/; |
| 9 |
|
use File::Path; |
| 10 |
|
|
| 11 |
use server; |
use server; |
| 12 |
use format; |
use format; |
| 13 |
|
use ip; |
| 14 |
|
use ping; |
| 15 |
|
|
| 16 |
our $debug = $server::debug; |
our $debug = $server::debug; |
| 17 |
|
|
| 84 |
my $mac = shift; |
my $mac = shift; |
| 85 |
$mac = format::mac($mac); |
$mac = format::mac($mac); |
| 86 |
|
|
| 87 |
my $p = Net::Ping->new; |
if ( my $clients_left = server::shared( 'new_clients' ) ) { |
| 88 |
|
server::shared( 'new_clients', $clients_left - 1 ); |
| 89 |
|
} else { |
| 90 |
|
warn "W: no new clients accepted"; |
| 91 |
|
return '0.0.0.0'; |
| 92 |
|
} |
| 93 |
|
|
| 94 |
my $prefix = $server::ip; |
my $prefix = $server::ip; |
| 95 |
$prefix =~ s{\.\d+$}{.}; |
$prefix =~ s{\.\d+$}{.}; |
| 96 |
my $addr = $server::ip_from || die; |
my $addr = $server::ip_from || die; |
| 97 |
my $ip = $prefix . $addr; |
my $ip = $prefix . $addr; |
| 98 |
|
|
| 99 |
while ( -e ip_path($ip) || $p->ping( $ip, 0.7 ) ) { |
while ( -e ip_path($ip) || ping::host($ip) ) { |
| 100 |
$ip = $prefix . $addr++; |
$ip = $prefix . $addr++; |
| 101 |
die "all addresses allocated!" if $addr == $server::ip_to; |
die "all addresses allocated!" if $addr == $server::ip_to; |
| 102 |
warn "skip $ip\n"; |
warn "skip $ip\n"; |
| 112 |
sub save_ip_mac { |
sub save_ip_mac { |
| 113 |
my ($ip,$mac) = @_; |
my ($ip,$mac) = @_; |
| 114 |
$mac = format::mac($mac); |
$mac = format::mac($mac); |
| 115 |
|
return if $mac eq '00:00:00:00:00:00'; |
| 116 |
|
|
| 117 |
mkdir ip_path($ip) unless -e ip_path($ip); |
mkdir ip_path($ip) unless -e ip_path($ip); |
| 118 |
|
|
| 119 |
my $mac_path = mac_path($mac); |
my $mac_path = mac_path($mac); |
| 120 |
unlink $mac_path if -l $mac_path; # XXX audit? |
unlink $mac_path if -l $mac_path; # XXX audit? |
| 121 |
symlink ip_path($ip), $mac_path; |
symlink ip_path($ip), $mac_path; |
| 122 |
write_file ip_path($ip,'mac'), $mac; |
write_file( ip_path($ip,'mac'), $mac ); |
| 123 |
} |
} |
| 124 |
|
|
| 125 |
sub ip_from_mac($) { |
sub ip_from_mac($) { |
| 152 |
|
|
| 153 |
sub change_ip($$) { |
sub change_ip($$) { |
| 154 |
my ($old, $new) = @_; |
my ($old, $new) = @_; |
| 155 |
my $mac = mac_from_ip($old); |
return if $old eq $new; |
| 156 |
|
my $mac = mac_from_ip($old) || die "no mac for $old"; |
| 157 |
rename ip_path($old), ip_path($new); |
rename ip_path($old), ip_path($new); |
| 158 |
unlink mac_path($mac); |
unlink mac_path($mac); |
| 159 |
symlink ip_path($new), mac_path($mac); |
symlink ip_path($new), mac_path($mac); |
| 160 |
|
return $new; |
| 161 |
|
} |
| 162 |
|
|
| 163 |
|
sub all_ips { |
| 164 |
|
sort { ip::to_int($a) cmp ip::to_int($b) } |
| 165 |
|
map { |
| 166 |
|
my $ip = $_; |
| 167 |
|
$ip =~ s{^.+/ip/}{}; |
| 168 |
|
$ip; |
| 169 |
|
} glob("$server::conf/ip/*") |
| 170 |
|
} |
| 171 |
|
|
| 172 |
|
sub remove { |
| 173 |
|
my $ip = shift; |
| 174 |
|
unlink $_ foreach grep { -e $_ } ( glob "$server::conf/ip/$ip/*" ); |
| 175 |
|
if ( my $mac = mac_from_ip $ip ) { |
| 176 |
|
unlink "$server::conf/mac/$mac"; |
| 177 |
|
} |
| 178 |
|
rmtree "$server::conf/ip/$ip"; |
| 179 |
|
} |
| 180 |
|
|
| 181 |
|
sub arp_mac_dev { |
| 182 |
|
my $arp = { |
| 183 |
|
map { |
| 184 |
|
my @c = split(/\s+/,$_); |
| 185 |
|
if ( $#c == 5 ) { |
| 186 |
|
client::save_ip_mac( $c[0], $c[3] ); |
| 187 |
|
( uc $c[3] => $c[5] ) |
| 188 |
|
} else { |
| 189 |
|
} |
| 190 |
|
} read_file('/proc/net/arp') |
| 191 |
|
}; |
| 192 |
|
|
| 193 |
|
warn "# arp ",dump( $arp ); |
| 194 |
|
return $arp; |
| 195 |
} |
} |
| 196 |
|
|
| 197 |
1; |
1; |
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