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 |
|
use kvm; |
16 |
|
|
17 |
our $debug = $server::debug; |
our $debug = $server::debug; |
18 |
|
|
62 |
write_file $path, $default; |
write_file $path, $default; |
63 |
warn "default $path = $default"; |
warn "default $path = $default"; |
64 |
$value = $default; |
$value = $default; |
65 |
|
} elsif ( -l $path ) { |
66 |
|
$value = readlink $path; |
67 |
} elsif ( -f $path ) { |
} elsif ( -f $path ) { |
68 |
$value = read_file $path; |
$value = read_file $path; |
69 |
|
chomp $value; |
70 |
} else { |
} else { |
71 |
warn "# $name missing $path\n" if $debug; |
warn "# $name missing $path\n" if $debug; |
72 |
} |
} |
73 |
return $value; |
return $value; |
74 |
} |
} |
75 |
|
|
76 |
|
sub all_conf { |
77 |
|
my $ip = shift; |
78 |
|
my $path = ip_path $ip || return; |
79 |
|
my $conf; |
80 |
|
foreach my $file ( glob("$path/*"), glob("$path/*/*") ) { |
81 |
|
my $name = $file; |
82 |
|
$name =~ s{^$path/+}{} || die "can't remove $path from $name"; |
83 |
|
$conf->{ $name } = |
84 |
|
-l $file ? readlink $file : |
85 |
|
-f $file ? read_file $file : |
86 |
|
'?'; |
87 |
|
} |
88 |
|
return $conf; |
89 |
|
} |
90 |
sub next_ip($) { |
sub next_ip($) { |
91 |
my $mac = shift; |
my $mac = shift; |
92 |
|
$mac = format::mac($mac); |
93 |
|
|
94 |
my $p = Net::Ping->new; |
if ( $server::new_clients > 0 ) { |
95 |
|
warn "# clients left: ", --$server::new_clients; |
96 |
|
} else { |
97 |
|
warn "W: no new clients accepted"; |
98 |
|
return '0.0.0.0'; |
99 |
|
} |
100 |
|
|
101 |
my $prefix = $server::ip; |
my $prefix = $server::ip; |
102 |
$prefix =~ s{\.\d+$}{.}; |
$prefix =~ s{\.\d+$}{.}; |
103 |
my $addr = $server::ip_from || die; |
my $addr = $server::ip_from || die; |
104 |
my $ip = $prefix . $addr; |
my $ip = $prefix . $addr; |
105 |
|
|
106 |
while ( -e ip_path($ip) || $p->ping( $ip, 0.7 ) ) { |
while ( -e ip_path($ip) || ping::host($ip) ) { |
107 |
$ip = $prefix . $addr++; |
$ip = $prefix . $addr++; |
108 |
die "all addresses allocated!" if $addr == $server::ip_to; |
die "all addresses allocated!" if $addr == $server::ip_to; |
109 |
warn "skip $ip\n"; |
warn "skip $ip\n"; |
118 |
|
|
119 |
sub save_ip_mac { |
sub save_ip_mac { |
120 |
my ($ip,$mac) = @_; |
my ($ip,$mac) = @_; |
121 |
|
$mac = format::mac($mac); |
122 |
|
return if $mac eq '00:00:00:00:00:00' || $ip eq '0.0.0.0'; |
123 |
|
|
124 |
mkdir ip_path($ip) unless -e ip_path($ip); |
mkdir ip_path($ip) unless -e ip_path($ip); |
125 |
|
|
126 |
my $mac_path = mac_path($mac); |
my $mac_path = mac_path($mac); |
127 |
unlink $mac_path if -l $mac_path; # XXX audit? |
unlink $mac_path if -l $mac_path; # XXX audit? |
128 |
symlink ip_path($ip), $mac_path; |
symlink ip_path($ip), $mac_path; |
129 |
write_file ip_path($ip,'mac'), $mac; |
write_file( ip_path($ip,'mac'), $mac ); |
130 |
} |
} |
131 |
|
|
132 |
sub ip_from_mac($) { |
sub ip_from_mac($) { |
133 |
my $mac = shift; |
my $mac = shift; |
134 |
|
$mac = format::mac($mac); |
|
$mac = lc $mac; |
|
|
$mac =~ s{:}{}g; |
|
135 |
|
|
136 |
my $mac_path = mac_path $mac; |
my $mac_path = mac_path $mac; |
137 |
return unless -e $mac_path; |
return unless -e $mac_path; |
159 |
|
|
160 |
sub change_ip($$) { |
sub change_ip($$) { |
161 |
my ($old, $new) = @_; |
my ($old, $new) = @_; |
162 |
my $mac = mac_from_ip($old); |
return if $old eq $new; |
163 |
|
my $mac = mac_from_ip($old) || die "no mac for $old"; |
164 |
rename ip_path($old), ip_path($new); |
rename ip_path($old), ip_path($new); |
165 |
unlink mac_path($mac); |
unlink mac_path($mac); |
166 |
symlink ip_path($new), mac_path($mac); |
symlink ip_path($new), mac_path($mac); |
167 |
|
return $new; |
168 |
|
} |
169 |
|
|
170 |
|
sub all_ips { |
171 |
|
sort { ip::to_int($a) cmp ip::to_int($b) } |
172 |
|
map { |
173 |
|
my $ip = $_; |
174 |
|
$ip =~ s{^.+/ip/}{}; |
175 |
|
autocreate_params( $ip ); |
176 |
|
$ip; |
177 |
|
} glob("$server::conf/ip/*") |
178 |
|
} |
179 |
|
|
180 |
|
sub remove { |
181 |
|
my $ip = shift; |
182 |
|
if ( my $mac = mac_from_ip $ip ) { |
183 |
|
unlink "$server::conf/mac/$mac"; |
184 |
|
} |
185 |
|
rmtree "$server::conf/ip/$ip"; |
186 |
|
} |
187 |
|
|
188 |
|
sub arp_mac_dev { |
189 |
|
my $arp = { |
190 |
|
map { |
191 |
|
my @c = split(/\s+/,$_); |
192 |
|
if ( $#c == 5 ) { |
193 |
|
client::save_ip_mac( $c[0], $c[3] ); |
194 |
|
( uc $c[3] => $c[5] ) |
195 |
|
} else { |
196 |
|
} |
197 |
|
} read_file('/proc/net/arp') |
198 |
|
}; |
199 |
|
|
200 |
|
warn "# arp ",dump( $arp ); |
201 |
|
return $arp; |
202 |
|
} |
203 |
|
|
204 |
|
sub rebuild_mac_links { |
205 |
|
warn "# rebuild mac links"; |
206 |
|
foreach my $ip ( all_ips ) { |
207 |
|
my $mac = ip_path $ip, 'mac'; |
208 |
|
if ( -e $mac ) { |
209 |
|
$mac = read_file $mac; |
210 |
|
chomp $mac; |
211 |
|
save_ip_mac( $ip, $mac ); |
212 |
|
warn "## $ip $mac\n"; |
213 |
|
} |
214 |
|
} |
215 |
|
} |
216 |
|
|
217 |
|
sub autocreate_params { |
218 |
|
my $ip = shift; |
219 |
|
my $mac = mac_from_ip $ip; |
220 |
|
if ( $mac =~ m{^AC:DE:48:00:00} && ! defined conf( $ip, 'kvm' ) ) { |
221 |
|
conf( $ip, 'kvm', default => kvm::nr_from_mac( $mac ) ); |
222 |
|
warn "# create kvm for $ip"; |
223 |
|
} |
224 |
} |
} |
225 |
|
|
226 |
1; |
1; |