summaryrefslogtreecommitdiffstats
path: root/perl-install/standalone/drakpxe
blob: 6bd222a53d10e947a93150fe70da95ffd471d024 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
#!/usr/bin/perl
#
# François Pons <fpons@mandrakesoft.com>
#
# Copyright 2003 MandrakeSoft
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License version 2, as
# published by the Free Software Foundation.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#

use strict;
use lib qw(/usr/lib/libDrakX);

use standalone;     #- warning, standalone must be loaded very first, for 'explanations'

use common;
use interactive;
use network;
use log;
use c;
use network::netconnect;

$::isInstall and die "Not supported during install.\n";

$::Wizard_pix_up = "wiz_drakgw.png"; #- to change ? keep existing one, nobody will see (too late) ;-)
$::direct = grep { /-direct/ } @ARGV;


#
#my $sysconf_network = "/etc/sysconfig/network";
#my $sysconf_dhcpd = "/etc/sysconfig/dhcpd";
#my $rc_firewall_generic = "/etc/rc.d/rc.firewall";
#my $rc_firewall_drakgw = "/etc/rc.d/rc.firewall.inet_sharing";
#my $rc_firewall_24 = "/etc/rc.d/rc.firewall.inet_sharing-2.4";
#my $masq_file = "/etc/shorewall/masq";
#my $cups_conf = "/etc/cups/cupsd.conf";
#
#my $shorewall = network::shorewall::read();
#
#- get network configuration.
my $netc = {};
my $intf = {};
network::read_all_conf('', $netc, $intf);

my $in = 'interactive'->vnew('su', 'default');
$::Wizard_title = N("PXE Server Configuration");

!$::isEmbedded && $in->isa('interactive::gtk') and $::isWizard = 1;

#pur_gtk_mode() if $::isEmbedded && $in->isa('interactive::gtk');

sub sys { system(@_) == 0 or log::l("[drakpxe] Warning, sys failed for $_[0]") }

sub outpend { 
    log::explanations("modified file $_[0]");
    my $f = shift; local *F; open F, ">>$f" or die "outpend in file $f failed: $!\n"; print F foreach @_;
}

sub start_daemons () {
    log::explanations("Starting daemons");

    system("/etc/rc.d/init.d/dhcpd status >/dev/null") == 0 and sys("/etc/rc.d/init.d/dhcpd stop");

    sys("/etc/rc.d/init.d/$_ start >/dev/null"), sys("/sbin/chkconfig --level 345 $_ on") foreach 'httpd', 'dhcpd';
}

sub stop_daemons () {
    log::explanations("Stopping daemons");
    foreach (qw(dhcpd httpd)) {
	system("/etc/rc.d/init.d/$_ status >/dev/null 2>/dev/null") == 0 and sys("/etc/rc.d/init.d/$_ stop");
    }
    sys("/sbin/chkconfig --level 345 $_ off") foreach 'dhcpd', 'httpd';
}

my $wait_configuring;

sub quit_global {
    my ($in, $exitcode) = @_;
    $in->exit($exitcode);
    goto begin
}

sub fatal_quit ($) {
    log::l("[drakpxe] FATAL: $_[0]");
    undef $wait_configuring;
    $in->ask_warn('', $_[0]);
    quit_global($in, -1);
}

#my ($kernel_version) = c::kernel_version() =~ /(...)/;
#log::l("[drakgw] kernel_version $kernel_version");
#
#$kernel_version >= 2.4 or fatal_quit(N("Sorry, we support only 2.4 kernels."));

begin:

#- **********************************
#- * 0th step: verify if we have multiple network interface.

$::Wizard_no_previous = 1;
    
$::direct or $in->ask_okcancel(N("Installation Server Configuration"),
N("You are about to configure your computer to install a PXE server as a DHCP server
and a TFTP server to build an installation server.
With that feature, other computers on your local network will be installable using from this computer.

Make sure you have configured your Network/Internet access using drakconnect before going any further.

Note: you need a dedicated Network Adapter to set up a Local Area Network (LAN)."), 1) or quit_global($in, 0);

undef $::Wizard_no_previous;


#- **********************************
#- * 1st step: verify if we have multiple network interface.

step_check_intf:

my @intf = grep { exists $_->{NETWORK} } map {
    unless ($_->{NETWORK}) {
	foreach my $s (split "\n", `route`) {
	    print STDERR "$s\n";
	    $s =~ /^(\S+)\s+\S+\s+$_->{NETMASK}\s+.*$_->{DEVICE}/ and $_->{NETWORK} = $1;
	}
    } $_ } values %$intf;
if (@intf < 1) {
    #- no interface already configured found, ask user to configure.
    $in->ask_warn(N("No network adapter on your system!"), 
		  N("No ethernet network adapter has been detected on your system. Please run the hardware configuration tool."));
    quit_global($in, 0);
} elsif (@intf > 1) {
    #- there are more than one interface, we need to choose one of them.
    @intf = ($in->ask_from_listf(N("Choose the network interface"),
				 N("Please choose which network interface will be used for the dhcp server."),	
				 sub { N("Interface %s (on network %s)", $_[0]{DEVICE}, $_[0]{NETWORK}) },
				 \@intf,
				) or goto begin);
}


#- **********************************
#- * 3rd step: select installation directory to be used (if not present, next step
#-             will be creation and copy from existing one).

step_ip_range:

#- read current configuration, or create a default suitable automatically.
my $dhcpd_conf = parse_dhcpd_conf("/etc/dhcpd.conf", {}, $netc, $intf[0]);

#- get back default of ip.
my $pool;
foreach (@{$dhcpd_conf->{network}{pool}}) {
    exists $_->{allow}{$dhcpd_conf->{class_PXE}} and $pool = $_, last;
}
my ($start_ip, $end_ip) = @{$pool || { start_ip => join('.', (split '\.', $intf[0]{NETWORK})[0..2], 16),
				       end_ip   => join('.', (split '\.', $intf[0]{NETWORK})[0..2], 253) }}{qw(start_ip end_ip)};

#- it become too complicated to handle address range, so ask user directly.
$in->ask_from('DHCP Server Configuration',
	      N("The DHCP server will allow other computer to boot using PXE in the given range of address.

The network address is %s using a netmask of %s.

", @{$intf[0]}{qw(NETWORK NETMASK)}), [ { label => N("The DHCP start ip"), val => \$start_ip, type => 'entry' },
					{ label => N("The DHCP end ip"), val => \$end_ip, type => 'entry' }, ])
  or goto begin;


#- **********************************
#- * 3rd step: select installation directory to be used (if not present, next step
#-             will be creation and copy from existing one).

step_install_dir:

my $dir = "/export"; #- TODO change according configuration?
    
$in->ask_from('Choose the installation image directory',
	      N("Please indicate where the installation image will be available.

If you do not have an existing directory, please copy the CD or DVD contents.

"),
      [ { label => N("Installation image directory"), val => \$dir, type => 'entry' }, ])
  or goto step_ip_range;

unless (-d $dir && -e "$dir/VERSION" && -d "$dir/isolinux" && -d "$dir/Mandrake/base") {
    $in->ask_warn(N("No image found"), 
		  N("No CD or DVD image found, please copy the installation program and rpm files."));
    goto step_install_dir;
}

#- **********************************
#- * 4st step: ask user for auto installation file.

step_auto_install:

my $auto_inst_cfg = "Mandrake/base/auto_inst.cfg"; #- TODO change according configuration?
-e "$dir/$auto_inst_cfg" or $auto_inst_cfg = '';

$in->ask_from('Choose auto installation',
	      N("Please indicate where the auto_install.cfg file is located.

Leave it blank if you do not want to set up automatic installation mode.

"),
      [ { label => N("Location of auto_install.cfg file"), val => \$auto_inst_cfg, type => 'entry' }, ])
  or goto step_install_dir;

#- now install packages...
my %rpm2file = ('dhcp-server' => '/usr/sbin/dhcpd',
		'pxe' => '/usr/sbin/pxe',
		'tftp-server' => '/usr/sbin/in.tftpd',
		'apache' => '/usr/sbin/httpd');

#- first: try to install all in one step
my @needed_to_install = grep { !-e $rpm2file{$_} } keys %rpm2file;
@needed_to_install and $in->do_pkgs->install(@needed_to_install);
#- second: try one by one if failure detected
if (grep { !-e $rpm2file{$_} } keys %rpm2file) {
    foreach (keys %rpm2file) {
	-e $rpm2file{$_} or $in->do_pkgs->install($_);
	-e $rpm2file{$_} or fatal_quit(N("Problems installing package %s", $_));
    }
}

#- check if a pool already exist allowing PXE, else create one wich will be correct.
if ($pool) {
    @{$pool}{qw(start_ip end_ip)} = ($start_ip, $end_ip);
} else {
    $pool = { start_ip => $start_ip, end_ip => $end_ip };
    foreach (keys %{$dhcpd_conf->{class}}) {
	$pool->{$_ eq $dhcpd_conf->{class_PXE} || $_ eq 'Etherboot' ? 'allow' : 'deny'}{$_} = undef;
    }
    push @{$dhcpd_conf->{network}{pool}}, $pool;
}
build_dhcpd_conf($dhcpd_conf, "/etc/dhcpd.conf");

#- make kernel and initrd available for initrd.
mkdir "/var/lib/tftpboot/PXEClient/images";
sys("cp", "-af", "$dir/isolinux/alt0", "/var/lib/tftpboot/PXEClient/images/");

my $pxelinux_cfg = parse_pxelinux_cfg("/var/lib/tftpboot/PXEClient/pxelinux.cfg/default");
my $label;
foreach my $i (0..99) {
    $label = undef;
    foreach my $e (@{$pxelinux_cfg->{entry}}) {
	$e->{label} eq "halt$i" and $label = "halt$i", last;
    }
    defined $label or $label = "halt$i", last;
}
my $server = $intf[0]{IPADDR} || $netc->{HOSTNAME};
push @{$pxelinux_cfg->{entry}}, { label => $label, 
				  kernel => "images/alt0/vmlinuz",
				  append => "initrd=images/alt0/all.rdz ramdisk=32000 vga=788 ".($auto_inst_cfg ? "kickstart=$auto_inst_cfg " : "")."automatic=method:http,network:dhcp,interface:eth0,dns:$netc->{dnsServer},server:$server,directory:$dir root=/dev/ram3" };
build_pxelinux_cfg($pxelinux_cfg, "/var/lib/tftpboot/PXEClient/pxelinux.cfg/default");

#- make directory available for httpd.
log::explanations("Linking $dir in /var/www/html to make it available");
system "mkdir", "-p", "/var/www/html/$dir";
rmdir "/var/www/html/$dir";
symlink $dir, "/var/www/html/$dir";

stop_daemons();
start_daemons();

#- sub for reading/writing dhcpd.conf and pxelinux.cfg/default...
sub parse_dhcpd_conf {
    my ($file, undef, $netc, $intf) = @_;
    my (%dhcpd_conf, $pool);
    local (*F, $_);

    #- fake reading configuration from dhcpd.conf file which is really too complex for this tools.
    $dhcpd_conf{class_PXE} = 'PXE';
    $dhcpd_conf{class} = { PXE => undef, Etherboot => undef, known => undef };
    add2hash($dhcpd_conf{network} = { pool => [] }, $intf);
    add2hash($dhcpd_conf{network}, $netc);

    if (open F, $file) {
	while (<F>) {
	    if (/^\s*pool\s*{/ .. /}/) {
		/^\s*range\s+(\S+)\s+(\S+)\s*;/ and ($pool->{start_ip}, $pool->{end_ip}) = ($1, $2);
		/^\s*(allow|deny)\s+members\s+of\s+"([^"]*)"\s*;/ and $pool->{$1}{$2} = undef;
		/}/ and do { push @{$dhcpd_conf{network}{pool}}, $pool; $pool = undef };
	    }
	}
	close F;
    }

    \%dhcpd_conf;
}

sub build_dhcpd_conf {
    my ($dhcpd_conf, $file) = @_;
    local *F;
    my $server = $dhcpd_conf->{network}{IPADDR} || $dhcpd_conf->{network}{HOSTNAME};
    open F, ">$file" or return;
    log::explanations("Modified file $file");
    print F qq(# for explanation in french go to : http://www.delafond.org/traducmanfr/man/man5/dhcpd.conf.5.html
ddns-update-style none;
allow booting;
allow bootp;

# Your dhcp server is not master on your network !
#not authoritative;
# Your dhcpd server is master on your network !
#authoritative;
not authoritative;

#Interface where dhcpd is active
DHCPD_INTERFACE = "$dhcpd_conf->{network}{DEVICE}";

# Definition of PXE-specific options
# Code 1: Multicast IP address of bootfile
# Code 2: UDP port that client should monitor for MTFTP responses
# Code 3: UDP port that MTFTP servers are using to listen for MTFTP requests
# Code 4: Number of secondes a client must listen for activity before trying
#         to start a new MTFTP transfer
# Code 5: Number of secondes a client must listen before trying to restart
#         a MTFTP transfer

# define Option for the PXE class
option space PXE;
option PXE.mtftp-ip code 1 = ip-address;
option PXE.mtftp-cport code 2 = unsigned integer 16;
option PXE.mtftp-sport code 3 = unsigned integer 16;
option PXE.mtftp-tmout code 4 = unsigned integer 8;
option PXE.mtftp-delay code 5 = unsigned integer 8;
option PXE.discovery-control code 6 = unsigned integer 8;
option PXE.discovery-mcast-addr code 7 = ip-address;

#Define options for pxelinux
option space pxelinux;
option pxelinux.magic      code 208 = string;
option pxelinux.configfile code 209 = text;
option pxelinux.pathprefix code 210 = text;
option pxelinux.reboottime code 211 = unsigned integer 32;
site-option-space "pxelinux";
# These lines should be customized to your setup
#option pxelinux.configfile "configs/common";
#option pxelinux.pathprefix "/pxelinux/files/";
#filename "/pxelinux/pxelinux.bin";
				
option pxelinux.magic f1:00:74:7e;
option pxelinux.reboottime 30;
#if exists dhcp-parameter-request-list {
	# Always send the PXELINUX options
#	append dhcp-parameter-request-list 208, 209, 210, 211;
#	append dhcp-parameter-request-list 208,211;
#					}

#Class that determine the options for Etherboot 5.x requests
class "Etherboot" {

#if The vendor-class-identifier equal Etherboot-5.0
match if substring (option vendor-class-identifier, 0, 13) = "Etherboot-5.0";

# filename define the file retrieve by the client, there nbgrub
# our tftp is chrooted so is just the path to the file
filename "/etherboot/nbgrub";

#Used by etherboot to detect a valid pxe dhcp server
option vendor-encapsulated-options 3c:09:45:74:68:65:72:62:6f:6f:74:ff;

# Set the  "vendor-class-identifier" field to "PXEClient" in dhcp answer        
# if this field is not set the pxe client will ignore the answer !
option vendor-class-identifier "Etherboot-5.0";

vendor-option-space PXE;
option PXE.mtftp-ip 0.0.0.0;

# IP of you TFTP server
next-server $server;
}


# create the Class PXE
class "PXE" {
# if the "vendor-class-identifier" is set to "PXEClient" in the client dhcp request
match if substring(option vendor-class-identifier, 0, 9) = "PXEClient";
  
# filename define the file retrieve by the client, there pxelinux.0
# our tftp is chrooted so is just the path to the file
# If you prefer use grub, use pxegrub compiled for your ethernet card.
#filename "/PXEClient/pxegrub";
filename "/PXEClient/pxelinux.0";

# Set the  "vendor-class-identifier" field to "PXEClient" in dhcp answer
# if this field is not set the pxe client will ignore the answer !
option vendor-class-identifier "PXEClient";

				  
vendor-option-space PXE;
option PXE.mtftp-ip 0.0.0.0;

# IP of you TFTP server
next-server $server;
}

# the class know exist just for deny the response to other DHCP request
class "known" {
  match hardware;
  one-lease-per-client on;
  ddns-updates on;
  ddns-domainname = "$dhcpd_conf->{network}{DOMAINNAME}";
  option domain-name "$dhcpd_conf->{network}{DOMAINNAME}";
  option domain-name-servers $dhcpd_conf->{network}{dnsServer};
  ddns-hostname = pick-first-value(ddns-hostname, option host-name);
  option fqdn.no-client-update on;
  set vendor_class_identifier = option vendor-class-identifier;
}

# Tags uses by setup_node_mac_to_dhcp
# TAG: NODE_LIST_BEGIN

# TAG: NODE_LIST_END
shared-network "mynetwork" {
  subnet $dhcpd_conf->{network}{NETWORK} netmask $dhcpd_conf->{network}{NETMASK} {
  option subnet-mask $dhcpd_conf->{network}{NETMASK};
  option routers $dhcpd_conf->{network}{GATEWAY};
  default-lease-time 28800;
  max-lease-time 86400;
  option domain-name "$dhcpd_conf->{network}{DOMAINNAME}";
  option domain-name-servers $dhcpd_conf->{network}{dnsServer};
# Used by clusterautosetup-client to find its server
  next-server $server;

);
    foreach (@{$dhcpd_conf->{network}{pool}}) {
	print F "    pool {
       range $_->{start_ip} $_->{end_ip};
";
	print F "       allow members of \"$_\";\n" foreach keys %{$_->{allow}};
	print F "       deny members of \"$_\";\n" foreach keys %{$_->{deny}};
	print F "    }\n";
    }
print F qq(

#   pool {
#     range 192.168.200.200 192.168.200.254;
# give an address of the the pool for PXE client and deny the other
#allow members of "PXE";
#deny members of "known";
#allow members of "Etherboot";
#        }
  }
}
);
    close F;
}

sub parse_pxelinux_cfg {
    my ($file) = @_;
    my (%pxelinux_cfg, $entry);
    local (*F, $_);

    if (open F, $file) {
	while (<F>) {
	    chomp;
	    s/#.*//; next if /^\s*$/;
	    if (/^\s*(PROMPT|DEFAULT|DISPLAY|TIMEOUT)\s+(.*)/i) {
		$pxelinux_cfg{$1} = $2;
	    } elsif (/^\s*label\s+(.*)/i) {
		$entry and push @{$pxelinux_cfg{entry}}, $entry;
		$entry = { label => $1 },
	    } elsif (/^\s*(LOCALBOOT|KERNEL|APPEND)\s+(.*)/i) {
		$entry->{$1} = $2;
	    } else {
		log::l("ignoring line in file $file due to parsing error");
	    }
	}
	$entry and push @{$pxelinux_cfg{entry}}, $entry;
	close F;
    }
    #- try to fix bad file (first version of drakpxe for example).
    my %default_pxelinux_cfg = ( PROMPT => 1,
				 DEFAULT => "local",
				 DISPLAY => "messages",
				 TIMEOUT => 50,
				 entry => [ { label => "local",
					      LOCALBOOT => 0 } ],
			       );
    foreach (qw(PROMPT DEFAULT DISPLAY TIMEOUT entry)) {
	length $pxelinux_cfg{$_} > 0 or $pxelinux_cfg{$_} = $default_pxelinux_cfg{$_};
    }
    \%pxelinux_cfg;
}

sub build_pxelinux_cfg {
    my ($pxelinux_cfg, $file) = @_;
    local *F;
    open F, ">$file" or return;
    log::explanations("Modified file $file");
    foreach (keys %$pxelinux_cfg) {
	/^entry$/ and next;
	print F "$_ $pxelinux_cfg->{$_}\n";
    }
    foreach my $e (@{$pxelinux_cfg->{entry}}) {
	print F "label $e->{label}\n";
	foreach (keys %$e) {
	    /^label$/ and next;
	    print F "      $_ $e->{$_}\n";
	}
    }
    close F;
}