19 |
use File::Slurp; |
use File::Slurp; |
20 |
use Data::Dump qw/dump/; |
use Data::Dump qw/dump/; |
21 |
use Net::Ping; |
use Net::Ping; |
|
use Module::Refresh; |
|
22 |
|
|
23 |
use lib '..'; |
use lib '..'; |
24 |
use Net::DHCP::Packet; |
use Net::DHCP::Packet; |
26 |
|
|
27 |
use server; |
use server; |
28 |
my $debug = server::debug; |
my $debug = server::debug; |
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use pxe; |
|
29 |
|
|
30 |
if ( ! $server::ip ) { |
if ( ! $server::ip ) { |
31 |
my $server_ip = `/sbin/ifconfig`; |
my $server_ip = `/sbin/ifconfig`; |
33 |
$server::ip = $server_ip; |
$server::ip = $server_ip; |
34 |
} |
} |
35 |
|
|
36 |
warn "server ip $server::ip file: $pxe::file range: $server::ip_from - $server::ip_to\n"; |
warn "server ip $server::ip range: $server::ip_from - $server::ip_to\n"; |
37 |
|
|
38 |
my $addr = $server::ip_from; |
my $addr = $server::ip_from; |
39 |
|
|
40 |
sub client_ip { |
sub client_ip { |
41 |
my ( $mac ) = @_; |
my ( $mac ) = @_; |
42 |
|
|
43 |
my $conf = "conf/$server::ip"; |
my $conf = "$server::base_dir/conf/$server::ip"; |
44 |
mkdir $conf unless -e $conf; |
mkdir $conf unless -e $conf; |
45 |
|
|
46 |
if ( -e "$conf/mac/$mac" ) { |
if ( -e "$conf/mac/$mac" ) { |
47 |
my $ip = read_file "$conf/mac/$mac"; |
my $ip = read_file "$conf/mac/$mac"; |
48 |
print "$mac old $ip\n"; |
print "RENEW $mac $ip\n"; |
49 |
return $ip; |
return $ip; |
50 |
} |
} |
51 |
|
|
73 |
return $ip; |
return $ip; |
74 |
} |
} |
75 |
|
|
76 |
|
use log; |
77 |
|
use config; |
78 |
|
|
79 |
|
our $file; |
80 |
our $transaction = 0; # FIXME predictible transaction numbers |
our $transaction = 0; # FIXME predictible transaction numbers |
81 |
|
|
82 |
sub process_packet { |
sub process_packet { |
83 |
my $sock = shift; |
my $sock = shift; |
84 |
|
|
85 |
|
server->refresh; |
86 |
|
|
87 |
my $buf; |
my $buf; |
88 |
$sock->recv($buf, 1024); |
$sock->recv($buf, 1024); |
89 |
my $size = 'empty'; |
my $size = 'empty'; |
90 |
$size = length($buf) . ' bytes' if defined $buf; |
$size = length($buf) . ' bytes' if defined $buf; |
91 |
|
|
92 |
print "packet from ",$sock->peerhost,":",$sock->peerport," $size\n"; |
print "packet from ",$sock->peerhost,":",$sock->peerport," $size\n" if $debug; |
93 |
return unless $buf; |
return unless $buf; |
94 |
|
|
95 |
my $dhcp = Net::DHCP::Packet->new($buf); |
my $dhcp = Net::DHCP::Packet->new($buf); |
112 |
|
|
113 |
=cut |
=cut |
114 |
|
|
115 |
|
config::for_ip( $ip ); |
116 |
|
|
117 |
my $packet = { |
my $packet = { |
118 |
Op => BOOTREPLY(), |
Op => BOOTREPLY(), |
119 |
Hops => $dhcp->hops(), |
Hops => $dhcp->hops(), |
124 |
Siaddr => $server::ip, |
Siaddr => $server::ip, |
125 |
Giaddr => $dhcp->giaddr(), |
Giaddr => $dhcp->giaddr(), |
126 |
Chaddr => $dhcp->chaddr(), |
Chaddr => $dhcp->chaddr(), |
127 |
File => $pxe::file, |
File => $file, |
|
}; |
|
128 |
|
|
129 |
pxe::config_for_ip( $ip ); |
DHO_PXELINUX_MAGIC() => 0xF100747E, |
130 |
|
DHO_PXELINUX_CONFIG_FILE() => 'pxelinux.cfg/default', |
131 |
|
DHO_PXELINUX_PATH_PREFIX() => 'live-helper/tftpboot/', |
132 |
|
DHO_PXELINUX_REBOOT_TIME() => 5, # default: 300 s |
133 |
|
}; |
134 |
|
|
135 |
my $messagetype = $dhcp->getOptionValue(DHO_DHCP_MESSAGE_TYPE()); |
my $messagetype = $dhcp->getOptionValue(DHO_DHCP_MESSAGE_TYPE()); |
136 |
|
|
137 |
if ($messagetype eq DHCPDISCOVER()) { |
if ($messagetype eq DHCPDISCOVER()) { |
138 |
warn "DHCP DISCOVER"; |
log::mac $mac, "DHCP DISCOVER"; |
139 |
$packet->{Comment} = $dhcp->comment(); |
$packet->{Comment} = $dhcp->comment(); |
140 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPOFFER(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPOFFER(); |
141 |
} elsif ($messagetype eq DHCPREQUEST()) { |
} elsif ($messagetype eq DHCPREQUEST()) { |
142 |
my $requested_ip = $dhcp->getOptionValue(DHO_DHCP_REQUESTED_ADDRESS()); |
my $requested_ip = $dhcp->getOptionValue(DHO_DHCP_REQUESTED_ADDRESS()); |
143 |
warn "DHCP REQUEST $requested_ip"; |
log::mac $mac, "DHCP REQUEST $requested_ip $ip $file"; |
144 |
if ( $ip eq $requested_ip ) { |
if ( $ip eq $requested_ip ) { |
145 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
146 |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
155 |
$packet->{DHO_DHCP_MESSAGE()} = "Bad request, expected $ip"; |
$packet->{DHO_DHCP_MESSAGE()} = "Bad request, expected $ip"; |
156 |
} |
} |
157 |
} elsif ($messagetype eq DHCPINFORM()) { |
} elsif ($messagetype eq DHCPINFORM()) { |
158 |
warn "DHCP INFORM ignored"; |
log::mac $mac, "DHCP INFORM ignored"; |
159 |
} else { |
} else { |
160 |
warn "$messagetype igored (bootp?)"; |
log::mac $mac, "$messagetype igored (bootp?)"; |
161 |
} |
} |
162 |
|
|
163 |
warn ">> $mac == $ip server: $server::ip", $pxe::file ? " pxe file: $pxe::file\n" : "\n"; |
warn ">> $mac == $ip server: $server::ip", $file ? " file: $file\n" : "\n" if $debug; |
164 |
|
|
165 |
$packet = new Net::DHCP::Packet( %$packet ); |
$packet = new Net::DHCP::Packet( %$packet ); |
166 |
warn "send ",$packet->toString() if $debug; |
warn "send ",$packet->toString() if $debug; |
199 |
print "DHCP listen on ",$sock->sockhost,":",$sock->sockport,"\n"; |
print "DHCP listen on ",$sock->sockhost,":",$sock->sockport,"\n"; |
200 |
|
|
201 |
while (1) { |
while (1) { |
|
Module::Refresh->refresh; |
|
202 |
process_packet $sock; |
process_packet $sock; |
203 |
} |
} |
204 |
} |
} |