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; |
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use Module::Refresh; |
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22 |
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23 |
use lib '..'; |
use lib '..'; |
24 |
use Net::DHCP::Packet; |
use Net::DHCP::Packet; |
25 |
use Net::DHCP::Constants 0.67; |
use Net::DHCP::Constants 0.67; |
26 |
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27 |
use server; |
use server; |
28 |
use pxe; |
my $debug = server::debug; |
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my $debug = 1; |
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29 |
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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 |
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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 |
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38 |
my $addr = $server::ip_from; |
my $addr = $server::ip_from; |
39 |
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40 |
sub client_ip { |
sub client_ip { |
41 |
my ( $mac ) = @_; |
my ( $mac ) = @_; |
42 |
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43 |
my $conf = "conf/$server::ip"; |
my $conf = "$server::base_dir/conf/$server::ip"; |
44 |
mkdir $conf unless -e $conf; |
mkdir $conf unless -e $conf; |
45 |
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46 |
if ( -e "$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 |
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|
73 |
return $ip; |
return $ip; |
74 |
} |
} |
75 |
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76 |
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use log; |
77 |
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use config; |
78 |
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79 |
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our $file; |
80 |
our $transaction = 0; # FIXME predictible transaction numbers |
our $transaction = 0; # FIXME predictible transaction numbers |
81 |
|
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82 |
sub process_packet { |
sub process_packet { |
87 |
my $size = 'empty'; |
my $size = 'empty'; |
88 |
$size = length($buf) . ' bytes' if defined $buf; |
$size = length($buf) . ' bytes' if defined $buf; |
89 |
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|
90 |
print "packet from ",$sock->peerhost,":",$sock->peerport," $size\n"; |
print "packet from ",$sock->peerhost,":",$sock->peerport," $size\n" if $debug; |
91 |
return unless $buf; |
return unless $buf; |
92 |
|
|
93 |
my $dhcp = Net::DHCP::Packet->new($buf); |
my $dhcp = Net::DHCP::Packet->new($buf); |
94 |
$dhcp->comment( $transaction++ ); |
$dhcp->comment( $transaction++ ); |
95 |
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|
96 |
warn "recv: ", $dhcp->toString; |
warn "recv: ", $dhcp->toString if $debug; |
97 |
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|
98 |
my $mac = substr($dhcp->chaddr(),0,$dhcp->hlen()*2); |
my $mac = substr($dhcp->chaddr(),0,$dhcp->hlen()*2); |
99 |
my $ip = client_ip($mac); |
my $ip = client_ip($mac); |
110 |
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|
111 |
=cut |
=cut |
112 |
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113 |
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config::for_ip( $ip ); |
114 |
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|
115 |
my $packet = { |
my $packet = { |
116 |
Op => BOOTREPLY(), |
Op => BOOTREPLY(), |
117 |
Hops => $dhcp->hops(), |
Hops => $dhcp->hops(), |
122 |
Siaddr => $server::ip, |
Siaddr => $server::ip, |
123 |
Giaddr => $dhcp->giaddr(), |
Giaddr => $dhcp->giaddr(), |
124 |
Chaddr => $dhcp->chaddr(), |
Chaddr => $dhcp->chaddr(), |
125 |
File => $pxe::file, |
File => $file, |
126 |
|
|
127 |
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DHO_PXELINUX_MAGIC() => 0xF100747E, |
128 |
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DHO_PXELINUX_CONFIG_FILE() => 'pxelinux.cfg/default', |
129 |
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DHO_PXELINUX_PATH_PREFIX() => 'live-helper/tftpboot/', |
130 |
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DHO_PXELINUX_REBOOT_TIME() => 5, # default: 300 s |
131 |
}; |
}; |
132 |
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|
133 |
my $messagetype = $dhcp->getOptionValue(DHO_DHCP_MESSAGE_TYPE()); |
my $messagetype = $dhcp->getOptionValue(DHO_DHCP_MESSAGE_TYPE()); |
134 |
|
|
135 |
if ($messagetype eq DHCPDISCOVER()) { |
if ($messagetype eq DHCPDISCOVER()) { |
136 |
warn "DHCP DISCOVER"; |
log::mac $mac, "DHCP DISCOVER"; |
137 |
$packet->{Comment} = $dhcp->comment(); |
$packet->{Comment} = $dhcp->comment(); |
138 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPOFFER(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPOFFER(); |
139 |
} elsif ($messagetype eq DHCPREQUEST()) { |
} elsif ($messagetype eq DHCPREQUEST()) { |
140 |
my $requested_ip = $dhcp->getOptionValue(DHO_DHCP_REQUESTED_ADDRESS()); |
my $requested_ip = $dhcp->getOptionValue(DHO_DHCP_REQUESTED_ADDRESS()); |
141 |
warn "DHCP REQUEST $requested_ip"; |
log::mac $mac, "DHCP REQUEST $requested_ip $ip $file"; |
142 |
if ( $ip eq $requested_ip ) { |
if ( $ip eq $requested_ip ) { |
143 |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
$packet->{DHO_DHCP_MESSAGE_TYPE()} = DHCPACK(); |
144 |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
$packet->{DHO_DHCP_LEASE_TIME()} = 5 * 60; # 5 min |
153 |
$packet->{DHO_DHCP_MESSAGE()} = "Bad request, expected $ip"; |
$packet->{DHO_DHCP_MESSAGE()} = "Bad request, expected $ip"; |
154 |
} |
} |
155 |
} elsif ($messagetype eq DHCPINFORM()) { |
} elsif ($messagetype eq DHCPINFORM()) { |
156 |
warn "DHCP INFORM ignored"; |
log::mac $mac, "DHCP INFORM ignored"; |
157 |
} else { |
} else { |
158 |
warn "$messagetype igored (bootp?)"; |
log::mac $mac, "$messagetype igored (bootp?)"; |
159 |
} |
} |
160 |
|
|
161 |
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; |
162 |
|
|
163 |
$packet = new Net::DHCP::Packet( %$packet ); |
$packet = new Net::DHCP::Packet( %$packet ); |
164 |
warn "## ",$packet->toString(),"\n" if $debug; |
warn "send ",$packet->toString() if $debug; |
165 |
|
|
166 |
my $reply = IO::Socket::INET->new( |
my $reply = IO::Socket::INET->new( |
167 |
LocalAddr => $server::ip, |
LocalAddr => $server::ip, |
197 |
print "DHCP listen on ",$sock->sockhost,":",$sock->sockport,"\n"; |
print "DHCP listen on ",$sock->sockhost,":",$sock->sockport,"\n"; |
198 |
|
|
199 |
while (1) { |
while (1) { |
|
Module::Refresh->refresh; |
|
200 |
process_packet $sock; |
process_packet $sock; |
201 |
} |
} |
202 |
} |
} |