5 |
use autodie; |
use autodie; |
6 |
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|
7 |
use File::Slurp; |
use File::Slurp; |
8 |
use Net::Ping; |
use Data::Dump qw/dump/; |
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use File::Path; |
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11 |
use server; |
use server; |
12 |
use format; |
use format; |
13 |
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use ip; |
14 |
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use ping; |
15 |
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16 |
our $debug = $server::debug; |
our $debug = $server::debug; |
17 |
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|
69 |
return $value; |
return $value; |
70 |
} |
} |
71 |
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72 |
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sub all_conf { |
73 |
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my $ip = shift; |
74 |
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my $path = ip_path $ip || return; |
75 |
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my $conf; |
76 |
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foreach my $file ( glob("$path/*") ) { |
77 |
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my $name = $file; |
78 |
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$name =~ s{^.+/([^/]+)$}{$1}; |
79 |
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$conf->{ $name } = read_file $file; |
80 |
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} |
81 |
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return $conf; |
82 |
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} |
83 |
sub next_ip($) { |
sub next_ip($) { |
84 |
my $mac = shift; |
my $mac = shift; |
85 |
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$mac = format::mac($mac); |
86 |
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|
87 |
my $p = Net::Ping->new; |
if ( $server::new_clients-- ) { |
88 |
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warn "# clients left: $server::new_clients\n"; |
89 |
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} else { |
90 |
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warn "W: no new clients accepted"; |
91 |
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return '0.0.0.0'; |
92 |
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} |
93 |
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|
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 . $addr; |
98 |
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|
99 |
while ( -e ip_path($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 $ip\n"; |
111 |
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|
112 |
sub save_ip_mac { |
sub save_ip_mac { |
113 |
my ($ip,$mac) = @_; |
my ($ip,$mac) = @_; |
114 |
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$mac = format::mac($mac); |
115 |
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return if $mac eq '00:00:00:00:00:00'; |
116 |
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|
117 |
mkdir ip_path($ip) unless -e ip_path($ip); |
mkdir ip_path($ip) unless -e ip_path($ip); |
118 |
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|
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'), $mac ); |
123 |
} |
} |
124 |
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|
125 |
sub ip_from_mac($) { |
sub ip_from_mac($) { |
126 |
my $mac = shift; |
my $mac = shift; |
127 |
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$mac = format::mac($mac); |
|
$mac = lc $mac; |
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$mac =~ s{:}{}g; |
|
128 |
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|
129 |
my $mac_path = mac_path $mac; |
my $mac_path = mac_path $mac; |
130 |
return unless -e $mac_path; |
return unless -e $mac_path; |
152 |
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|
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 |
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return $new; |
161 |
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} |
162 |
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|
163 |
|
sub all_ips { |
164 |
|
sort { ip::to_int($a) cmp ip::to_int($b) } |
165 |
|
map { |
166 |
|
my $ip = $_; |
167 |
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$ip =~ s{^.+/ip/}{}; |
168 |
|
$ip; |
169 |
|
} glob("$server::conf/ip/*") |
170 |
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} |
171 |
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|
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 |
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|
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 |
|
sub rebuild_mac_links { |
198 |
|
warn "# rebuild mac links"; |
199 |
|
foreach my $ip ( all_ips ) { |
200 |
|
my $mac = ip_path $ip, 'mac'; |
201 |
|
if ( -e $mac ) { |
202 |
|
$mac = read_file $mac; |
203 |
|
save_ip_mac( $ip, $mac ); |
204 |
|
warn "## $ip $mac\n"; |
205 |
|
} |
206 |
|
} |
207 |
} |
} |
208 |
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|
209 |
1; |
1; |