summaryrefslogtreecommitdiffstats
path: root/perl-install/detect_devices.pm
blob: e77a57479e4514c2e049f1357eb10ed880156259 (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
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
1327
1328
1329
1330
1331
1332
1333
1334
1335
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
1383
1384
1385
1386
1387
1388
1389
1390
1391
1392
1393
1394
1395
1396
1397
1398
1399
1400
1401
1402
1403
1404
1405
1406
1407
1408
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464
1465
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
1478
1479
1480
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
1620
1621
1622
1623
1624
1625
1626
1627
1628
1629
1630
1631
1632
1633
1634
1635
1636
1637
1638
1639
1640
1641
1642
1643
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658
1659
1660
1661
1662
1663
1664
1665
1666
1667
1668
1669
1670
1671
1672
1673
1674
1675
1676
1677
1678
1679
1680
1681
1682
1683
1684
1685
1686
1687
1688
1689
1690
1691
1692
1693
1694
1695
1696
1697
1698
1699
1700
1701
1702
1703
1704
1705
1706
1707
1708
1709
1710
1711
1712
1713
1714
1715
1716
1717
1718
1719
1720
1721
1722
1723
1724
1725
1726
1727
1728
1729
1730
1731
1732
1733
1734
1735
1736
1737
1738
1739
1740
1741
1742
1743
1744
1745
1746
1747
1748
1749
1750
1751
1752
1753
1754
1755
package detect_devices;

use diagnostics;
use strict;
use vars qw($pcitable_addons $usbtable_addons);

#-######################################################################################
#- misc imports
#-######################################################################################
use log;
use MDK::Common; # help perl_checker
use common;
use devices;
use run_program;
use modules;
use c;
use feature 'state';


=head1 SYNOPSYS

The B<detect_devices> modules offers a high level API for detecting devices.*
It mostly relies on the L<c> modules for gluing  libldetect back into the Perl world, and thus
being able to enumerate DMI/HID/PCI/USB devices.

Other devices are mostly detected through C</proc> & C</sys>.

Then the L<list_modules> enables to map modules into categories such as:

=over 4

=item * C<network/ethernet,>

=item * C<network/wireless,>

=item * C<network/wifi,>

=item * C<disk/sata,>

=item * C<disk/scsi,>

=item * ...

=back

This enables to detect a category by mapping drivers to categories.

=head1 Listing block devices

=cut

#-#####################################################################################
#- Globals
#-#####################################################################################
my %serialprobe;

#-######################################################################################
#- Functions
#-######################################################################################

=over

=item get()

Returns a list of all block devices (IDE, SCSI, SATA, virtual, RAID, ...)

=cut

sub get() {
    #- Detect the default BIOS boot harddrive is kind of tricky. We may have IDE,
    #- SCSI and RAID devices on the same machine. From what I see so far, the default
    #- BIOS boot harddrive will be
    #- 1. The first IDE device if IDE exists. Or
    #- 2. The first SCSI device if SCSI exists. Or
    #- 3. The first RAID device if RAID exists.

    getIDE(), getSCSI(), getMmcBlk(), getNVMe(), getXenBlk(), getVirtIO(), getDAC960(), getCompaqSmartArray();
}
sub hds()         { grep { may_be_a_hd($_) } get() }
sub tapes()       { grep { $_->{media_type} eq 'tape' } get() }
sub cdroms()      { grep { $_->{media_type} eq 'cdrom' } get() }
sub burners()     { grep { isBurner($_) } cdroms() }
sub dvdroms()     { grep { isDvdDrive($_) } cdroms() }
sub raw_zips()    { grep { member($_->{media_type}, 'fd', 'hd') && isZipDrive($_) } get() }
sub ls120s()      { grep { member($_->{media_type}, 'fd', 'hd') && isLS120Drive($_) } get() }
sub zips()        {
    map { 
	$_->{device} .= 4; 
	$_;
    } raw_zips();
}

sub floppies {
    my ($o_not_detect_legacy_floppies) = @_;
    require modules;
    state @fds;
    state $legacy_already_detected;

    $o_not_detect_legacy_floppies = 1 if arch() =~ /mips|arm/;

    if (!$o_not_detect_legacy_floppies && !$legacy_already_detected) {
        $legacy_already_detected = 1;
        if ($::isInstall) {
            eval { modules::load("floppy") };
            system(qw(udevadm settle)) if !$@;
        }
        #- do not bother probing /dev/fd0 and loading floppy device uselessly,
        #- it takes time and it is already done by boot process (if not in install):
        #-   /dev/fd0 is created by start_udev (/etc/udev/devices.d/default.nodes)
        #-   then hal probes /dev/fd0 and triggers floppy module loading through kernel's kmod
        if (any { (split)[1] eq 'fd' } cat_("/proc/devices")) {
            @fds = map {
                my $info = c::floppy_info("/dev/fd$_");
                if_($info && $info ne '(null)', { device => "fd$_", media_type => 'fd', info => $info });
            } qw(0 1);
        }
    }
        
    my @ide = ls120s() and eval { modules::load("ide_floppy") };

    eval { modules::load("usb_storage") } if $::isInstall && usbStorage();
    my @scsi = grep { $_->{media_type} eq 'fd' } getSCSI();
    @ide, @scsi, @fds;
}
sub floppies_dev() { map { $_->{device} } floppies() }
sub floppy() { first(floppies_dev()) }
#- example ls120, model = "LS-120 SLIM 02 UHD Floppy"

sub removables() {
    floppies(), cdroms(), zips();
}

sub get_sys_cdrom_info {
    my (@drives) = @_;

    my @drives_order;
    foreach (cat_("/proc/sys/dev/cdrom/info")) {
	my ($t, $l) = split ':';
	my @l;
	@l = split(' ', $l) if $l;
	if ($t eq 'drive name') {
	    @drives_order = map {
		my $dev = $_;
		find { $_->{device} eq $dev } @drives;
	    } @l;
	} else {
	    my $capacity;
	    if ($t eq 'Can write CD-R') {
		$capacity = 'burner';
	    } elsif ($t eq 'Can read DVD') {
		$capacity = 'DVD';
	    }
	    if ($capacity) {
		each_index {
		    ($drives_order[$::i] || {})->{capacity} .= "$capacity " if $_;
		} @l;
	    }
	}
    }
}

sub complete_usb_storage_info {
    my (@l) = @_;

    my @usb = grep { exists $_->{usb_vendor} } @l;

    foreach my $usb (usb_probe()) {
	if (my $e = find { !$_->{found} && $_->{usb_vendor} == $usb->{vendor} && $_->{usb_id} == $usb->{id} } @usb) {
         my $host = get_sysfs_usbpath_for_block($e->{device});
         if ($host) {
             my $file = "/sys/block/$host/../serial";
             $e->{info} = chomp_(cat_($file)) if -e $file;
             $e->{usb_description} = join('|', 
                                          chomp_(cat_("/sys/block/$host/../manufacturer")),
                                          chomp_(cat_("/sys/block/$host/../product")));
         }
         local $e->{found} = 1;
	    $e->{"usb_$_"} ||= $usb->{$_} foreach keys %$usb;
	}
    }
}

sub isBurner { 
    my ($e) = @_;
    $e->{capacity} =~ /burner/ and return 1;
      
    #- do not work for SCSI
    my $f = tryOpen($e->{device}); #- SCSI burner are not detected this way.
    $f && c::isBurner(fileno($f));
}
sub isDvdDrive {
    my ($e) = @_;
    $e->{capacity} =~ /DVD/ || $e->{info} =~ /DVD/ and return 1;

    #- do not work for SCSI
    my $f = tryOpen($e->{device});
    $f && c::isDvdDrive(fileno($f));
}
sub isZipDrive { $_[0]{info} =~ /ZIP\s+\d+/ } #- accept ZIP 100, untested for bigger ZIP drive.
sub isLS120Drive { $_[0]{info} =~ /LS-?120|144MB/ }
sub isKeyUsb { begins_with($_[0]{usb_media_type} || '', 'Mass Storage') && $_[0]{media_type} eq 'hd' }
sub isFloppyUsb { $_[0]{usb_driver} && $_[0]{usb_driver} eq 'Removable:floppy' }
sub may_be_a_hd { 
    my ($e) = @_;
    $e->{media_type} eq 'hd' && !(
	isZipDrive($e) 
           || isLS120Drive($e)
           || begins_with($e->{usb_media_type} || '', 'Mass Storage|Floppy (UFI)')
    );
}

sub get_sysfs_field_from_link {
    my ($device, $field) = @_;
    my $l = readlink("$device/$field");
    $l =~ s!.*/!!;
    $l;
}

sub get_sysfs_usbpath_for_block {
    my ($device) = @_;
    my $host = readlink("/sys/block/$device");
    $host =~ s!/host.*!!;
    $host;
}

sub get_scsi_driver {
    my (@l) = @_;
    # find driver of host controller from sysfs:
    foreach (@l) {
	next if $_->{driver};
	my $host = get_sysfs_usbpath_for_block($_->{device});
	require list_modules;
	$_->{driver} = list_modules::filename2modname(get_sysfs_field_from_link("/sys/block/$host", 'driver'));
    }
}

=item getSCSI()

Returns a list of all SCSI device.

=cut

sub getSCSI() {
    my $dev_dir = '/sys/bus/scsi/devices';

    my @scsi_types = (
	"Direct-Access",
	"Sequential-Access",
	"Printer",
	"Processor",
	"WORM",
	"CD-ROM",
	"Scanner",
	"Optical Device",
	"Medium Changer",
	"Communications",
    );

    my @l;
    foreach (all($dev_dir)) {
	my ($host, $channel, $id, $lun) = split ':';
	defined $lun or next;

	my $dir = "$dev_dir/$_";

	# handle both old and new kernels:
	my $node =  find { -e $_ } "$dir/block", top(glob_("$dir/block*")), "$dir/tape", top(glob_("$dir/scsi_generic*"));
	my ($device) = readlink($node) =~ m!/(?:scsi_(?:generic|tape)|block)/(.*)!;
        if (!$device) {
            ($device) = top(glob_("$node/*")) =~ m!/(?:scsi_(?:generic|tape)|block)/(.*)!;
        }
	warn("cannot get info for device ($_)"), next if !$device;

	my $usb_dir = readlink($dir) =~ m!/usb! && "$dir/../../../..";
	my $get_usb = sub { chomp_(cat_("$usb_dir/$_[0]")) };

	my $get = sub {
	    my $s = cat_("$dir/$_[0]");
	    $s =~ s/\s+$//;
	    $s;
	};

	# Old HP scanners report themselves as "Processor"s
	# (see linux/include/scsi/scsi.h and sans-find-scanner.1)
	my $raw_type = $scsi_types[$get->('type')];

	my $media_type = ${{ st => 'tape', sr => 'cdrom', sd => 'hd', sg => 'generic' }}{substr($device, 0, 2)} ||
	  $raw_type =~ /Scanner|Processor/ && 'scanner';

	my ($vendor, $model) = ($get->('vendor'), $get->('model'));
	my ($v, $m) = _get_hd_vendor($model);
	if ($v && $m) {
            ($vendor, $model) = ($v, $m);
	}
	push @l, { info =>  $vendor . ' ' . $model, host => $host, channel => $channel, id => $id, lun => $lun, 
	  description => join('|', $vendor, $model),
	  bus => 'SCSI', media_type => $media_type, device => $device,
	    $usb_dir ? (
	  usb_vendor => hex($get_usb->('idVendor')), usb_id => hex($get_usb->('idProduct')),
	    ) : (),
        };
    } 

    @l = sort { $a->{host} <=> $b->{host} || $a->{channel} <=> $b->{channel} || $a->{id} <=> $b->{id} || $a->{lun} <=> $b->{lun} } @l;

    complete_usb_storage_info(@l);

    foreach (@l) {
	$_->{media_type} = 'fd' if $_->{media_type} eq 'hd' && isFloppyUsb($_);
    }

    get_sys_cdrom_info(@l);
    get_scsi_driver(@l);
    @l;
}


my %hd_vendors = (
    "ASUS" => "Asus",
    "ATA Maxtor" => "Maxtor",
    "CD-ROM CDU" => "Sony",
    "CD-ROM Drive/F5D" => "ASUSTeK",
    "Compaq" => "Compaq",
    "CONNER" => "Conner Peripherals",
    "IBM" => "IBM",
    "INTEL" => "Intel",
    "FUJITSU" => "Fujitsu",
    "HITACHI" => "Hitachi",
    "Lite-On" => "Lite-On Technology Corp.",
    "LITE-ON" => "Lite-On Technology Corp.",
    "LTN" => "Lite-On Technology Corp.",
    "IOMEGA" => "Iomega",
    "MAXTOR" => "Maxtor",
    "Maxtor" => "Maxtor",
    "Micropolis" => "Micropolis",
    "Pioneer" => "Pioneer",
    "PLEXTOR" => "Plextor",
    "QUANTUM" => "Quantum", 
    "SAMSUNG" => "Samsung",
    "Seagate " => "Seagate Technology",
    "ST3" => "Seagate Technology",
    "TEAC" => "Teac",
    "TOSHIBA" => "Toshiba",
    "WDC" => "Western Digital Corp.",
);

# return ($vendor, $model)
sub _get_hd_vendor {
    my ($info) = @_;
    foreach my $name (keys %hd_vendors) {
        next if !$name;
        return ($hd_vendors{$name}, $2) if $info =~ /^$name(-|\s)*(.*)/;
    }
    return ("Hitachi", $info) if $info =~ /^HD[ST][0-9]/;
}

=item getIDE()

Returns a list of all IDE device.

=cut

sub getIDE() {
    my @idi;

    #- what about a system with absolutely no IDE on it, like some sparc machine.
    -e "/proc/ide" or return ();

    #- Great. 2.2 kernel, things are much easier and less error prone.
    foreach my $d (sort @{[glob_('/proc/ide/hd*')]}) {
	my $t = chomp_(cat_("$d/media"));
	my $type = ${{ disk => 'hd', cdrom => 'cdrom', tape => 'tape', floppy => 'fd' }}{$t} or next;
	my $info = chomp_(cat_("$d/model")) || "(none)";

	my $num = ord(($d =~ /(.)$/)[0]) - ord 'a';
	my ($vendor, $model) = _get_hd_vendor($info);

	my $host = $num;
	($host, my $id) = divide($host, 2);
	($host, my $channel) = divide($host, 2);

	push @idi, { media_type => $type, device => basename($d), 
		     info => $info, host => $host, channel => $channel, id => $id, bus => 'ide', 
		     if_($vendor, Vendor => $vendor), if_($model, Model => $model) };
    }
    get_sys_cdrom_info(@idi);
    @idi;
}

sub block_devices() {
    -d '/sys/block' 
      ? map { s|!|/|; $_ } all('/sys/block') 
      : map { $_->{dev} } do { require fs::proc_partitions; fs::proc_partitions::read_raw() };
}

=item getCompaqSmartArray()

Returns a list of all CCISS devices (Compaq Smart Array).

=cut

sub getCompaqSmartArray() {
    my (@idi, $f);

    foreach ('array/ida', 'cpqarray/ida', 'cciss/cciss') {
	my $prefix = "/proc/driver/$_";
	my ($name) = m|/(.*)|;
	for (my $i = 0; -r ($f = "${prefix}$i"); $i++) {
	    my @raw_devices = cat_($f) =~ m|^\s*($name/.*?):|gm;

	    #- this is ugly and buggy. keeping it for 2007.0
	    #- on a cciss, cciss/cciss0 didn't contain c0d0, but cciss/cciss1 did contain c0d1
	    #- the line below adds both c0d0 and c0d1 for cciss0, and so some duplicates
	    @raw_devices or @raw_devices = grep { m!^$name/! } block_devices();

	    foreach my $raw_device (@raw_devices) {
		my $device = -d "/dev/$raw_device" ? "$raw_device/disc" : $raw_device;
		push @idi, { device => $device, prefix => $raw_device . 'p', 
			     info => "Compaq RAID logical disk",
			     media_type => 'hd', bus => $name };
	    }
	}
    }
    #- workaround the buggy code above. this should be safe though
    uniq_ { $_->{device} } @idi;
}

sub getDAC960() {
    my %idi;

    #- We are looking for lines of this format:DAC960#0:
    #- /dev/rd/c0d0: RAID-7, Online, 17928192 blocks, Write Thru0123456790123456789012
    foreach (syslog()) {
	my ($device, $info) = m|/dev/(rd/.*?): (.*?),| or next;
	$idi{$device} = { info => $info, media_type => 'hd', device => $device, bus => 'dac960' };
    }
    values %idi;
}

=item getXenBlk()

Returns a list of all Xen block devices (C</dev/xvd*>).

=cut

sub getXenBlk() {
    -d '/sys/bus/xen/devices' or return;
    map {   
            s/block://;
            { device => basename($_), info => "Xen block device", media_type => 'hd', bus => 'xen' };
    } glob("/sys/block/xvd*");
}

=item getVirtIO()

Returns a list of all VirtIO block devices (/dev/C<vd*>).

=cut

sub getVirtIO() {
    -d '/sys/bus/virtio/devices' or return;
    map {
            { device => basename($_), info => "VirtIO block device", media_type => 'hd', bus => 'virtio' };
    }
    glob("/sys/bus/virtio/devices/*/block/*");
}

sub getMmcBlk() {
    -d '/sys/bus/mmc/devices' or return;
    map {
            { device => basename($_), info => "MMC block device", media_type => 'hd', bus => 'mmc' };
    }
    glob("/sys/bus/mmc/devices/*/block/*");
}

sub getNVMe() {
    -d '/sys/class/nvme' or return;
    map {
            { device => basename($_), info => "NVMe block device", media_type => 'hd', bus => 'pci_express' };
    }
    glob("/sys/block/nvme*");
}

=item getCPUs()

Returns a list of all CPUs.

=cut

sub getCPUs() { 
    my (@cpus, $cpu);
    foreach (cat_("/proc/cpuinfo")) {
	   if (/^processor/) { # ix86 specific
		  push @cpus, $cpu if $cpu;
		  $cpu = {};
	   }
	   $cpu->{$1} = $2 if /^([^\t]+).*:\s(.*)$/;
	   $cpu->{processor}++ if $1 eq "processor";
    }
    push @cpus, $cpu;
    @cpus;
}

sub ix86_cpu_frequency() {
    cat_('/proc/cpuinfo') =~ /cpu MHz\s*:\s*(\d+)/ && $1;
}

=item probe_category($category)

Returns a list of devices which drivers are in the asked category. eg:

   my @eth_cards = probe_category('network/ethernet');

=cut

sub probe_category {
    my ($category) = @_;

    require list_modules;
    my @modules = list_modules::category2modules($category);

    grep {
	if ($category eq 'network/isdn') {
	    my $b = $_->{driver} =~ /ISDN:([^,]*),?([^,]*)(?:,firmware=(.*))?/;
	    if ($b) {
                $_->{driver} = $1;
                $_->{type} = $2;
                $_->{type} =~ s/type=//;
                $_->{firmware} = $3;
                $_->{driver} eq "hisax" and $_->{options} .= " id=HiSax";
	    }
	    $b;
	} else {
	    member($_->{driver}, @modules);
	}
    } probeall();
}

sub getSoundDevices() {
    probe_category('multimedia/sound');
}

sub isTVcardConfigurable { member($_[0]{driver}, qw(bttv cx88 saa7134)) }

sub getTVcards() { probe_category('multimedia/tv') }

sub getInputDevices() {
    my (@devices, $device);
    my $event;
    foreach (cat_('/proc/bus/input/devices')) {
        if (/^I:/) {
            $device = {};
            $device->{vendor} = /Vendor=(\w+)/ && $1;
            $device->{id} = /Product=(\w+)/ && $1;
            $device->{bustype} = /Bus=(\w+)/ && $1;
        } elsif (/N: Name="(.*)"/) {
	    my $descr = $1;
	    $device->{description} = "|$descr";

	    #- I: Bus=0011 Vendor=0002 Product=0008 Version=7321
	    #- N: Name="AlpsPS/2 ALPS GlidePoint"
	    #- P: Phys=isa0060/serio1/input0
	    #- H: Handlers=mouse1 event2 ts1
	    #- B: EV=f
	    #- B: KEY=420 0 70000 0 0 0 0 0 0 0 0 #=> BTN_LEFT BTN_RIGHT BTN_MIDDLE BTN_TOOL_FINGER BTN_TOUCH
	    #-    or B: KEY=420 0 670000 0 0 0 0 0 0 0 0 #=> same with BTN_BACK
	    #- B: REL=3       #=> X Y
	    #- B: ABS=1000003 #=> X Y PRESSURE

	    #- I: Bus=0011 Vendor=0002 Product=0008 Version=2222
	    #- N: Name="AlpsPS/2 ALPS DualPoint TouchPad"
	    #- P: Phys=isa0060/serio1/input0
	    #- S: Sysfs=/class/input/input2
	    #- H: Handlers=mouse1 ts1 event2 
	    #- B: EV=f
	    #- B: KEY=420 0 70000 0 0 0 0 0 0 0 0
	    #- B: REL=3
	    #- B: ABS=1000003

	    #- I: Bus=0011 Vendor=0002 Product=0007 Version=0000
	    #- N: Name="SynPS/2 Synaptics TouchPad"
	    #- P: Phys=isa0060/serio1/input0
	    #- S: Sysfs=/class/input/input1
	    #- H: Handlers=mouse0 event1 ts0
	    #- B: EV=b
	    #- B: KEY=6420 0 70000 0 0 0 0 0 0 0 0 #=> BTN_LEFT BTN_RIGHT BTN_MIDDLE BTN_TOOL_FINGER BTN_TOUCH BTN_TOOL_DOUBLETAP BTN_TOOL_TRIPLETAP
	    #-    or B: KEY=6420 0 670000 0 0 0 0 0 0 0 0  #=> same with BTN_BACK
	    #-    or B: KEY=420 30000 670000 0 0 0 0 0 0 0 0 #=> same without BTN_TOOL_TRIPLETAP but with BTN_B
	    #- B: ABS=11000003 #=> X Y PRESSURE TOOL_WIDTH

	    #- I: Bus=0003 Vendor=056a Product=0065 Version=0108
	    #- N: Name="Wacom Bamboo"
	    #- B: KEY=1c63 0 70033 0 0 0 0 0 0 0 0 #=> BTN_0 BTN_1 BTN_4 BTN_5 BTN_LEFT BTN_RIGHT BTN_MIDDLE TOOL_PEN TOOL_RUBBER TOOL_BRUSH TOOL_FINGER TOOL_MOUSE TOUCH STYLUS STYLUS2
            #- B: ABS=100 3000103 #=> X Y WHEEL PRESSURE DISTANCE MISC

	    #- I: Bus=0003 Vendor=056a Product=0011 Version=0201
	    #- N: Name="Wacom Graphire2 4x5"
            #- B: KEY=1c43 0 70000 0 0 0 0 0 0 0 0 #=> BTN_LEFT BTN_RIGHT BTN_MIDDLE TOOL_PEN TOOL_RUBBER TOOL_FINGER TOOL_MOUSE TOUCH STYLUS STYLUS2
            #- B: ABS=100 3000003 #=> X Y PRESSURE DISTANCE MISC

            #I: Bus=0003 Vendor=049f Product=0024 Version=0001
	    #N: Name="Compaq Compaq Numeric Keypad"
	    #P: Phys=usb-0000:00:03.2-2/input0
	    #S: Sysfs=/class/input/input7
	    #H: Handlers=kbd event3
	    #B: EV=120003
	    #B: KEY=10000 7 ff800000 7ff febeffdf ffefffff ffffffff fffffffe
	    #B: LED=1f

	    $device->{Synaptics} = $descr eq 'SynPS/2 Synaptics TouchPad';
	    $device->{ALPS} = $descr =~ m!^AlpsPS/2 ALPS!;
	    $device->{Elantech} = $descr eq 'ETPS/2 Elantech Touchpad';
	    $device->{Numpad} = $descr =~ /Numeric Keypad/;

	} elsif (/H: Handlers=(.*)/) {
	    my @l = split(' ', $1);
	    $device->{driver} = $l[0]; #- keep it for compatibility
	    $device->{Handlers} = +{ map { (/^(.*?)\d*$/ ? $1 : $_, $_) } split(' ', $1) };
	    $event = $device->{Handlers}{event};
	} elsif (/S: Sysfs=(.+)/) {
	    $device->{sysfs_path} = $1;
	} elsif (/P: Phys=(.*)/) {
            $device->{location} = $1;
            $device->{bus} = 'isa' if $device->{location} =~ /^isa/;
            $device->{bus} = 'usb' if $device->{location} =~ /^usb/i;
	} elsif (/B: REL=(.* )?(.*)/) {
	    #- REL=3   #=> X Y
	    #- REL=103 #=> X Y WHEEL
	    #- REL=143 #=> X Y HWHEEL WHEEL
	    #- REL=1c3 #=> X Y HWHEEL DIAL WHEEL
	    my $REL = hex($2);
	    $device->{HWHEEL} = 1 if $REL & (1 << 6);
	    $device->{WHEEL} = 1 if $REL & (1 << 8); #- not reliable ("Mitsumi Apple USB Mouse" says REL=103 and KEY=1f0000 ...)

	} elsif (/B: KEY=(\S+)/) {	   
	    #- some KEY explained:
	    #- (but note that BTN_MIDDLE can be reported even if missing)
	    #- (and "Mitsumi Apple USB Mouse" reports 1f0000)
	    #- KEY=30000 0 0 0 0 0 0 0 0  #=> BTN_LEFT BTN_RIGHT
	    #- KEY=70000 0 0 0 0 0 0 0 0  #=> BTN_LEFT BTN_RIGHT BTN_MIDDLE
	    #- KEY=1f0000 0 0 0 0 0 0 0 0 #=> BTN_LEFT BTN_RIGHT BTN_MIDDLE BTN_SIDE BTN_EXTRA
	    if (!$> && ! -f "/dev/input/$event") {
		    devices::make("/dev/input/$event");
	    }
	    if (-r "/dev/input/$event") {
		my @KEYS = c::EVIocGBitKey("/dev/input/$event");
		$device->{SIDE} = 1 if $KEYS[0] & (1 << 0x13);
	    } else {
		my $KEY = hex($1);
		$device->{SIDE} = 1 if $KEY & (1 << 0x13);
	    }

        } elsif (/^\s*$/) {
	    push @devices, $device if $device;
	    undef $device;
	}
    }
    @devices;
}

sub getInputDevices_and_usb() {
    my @l = getInputDevices();

    foreach my $usb (usb_probe()) {
	if (my $e = find { hex($_->{vendor}) == $usb->{vendor} && hex($_->{id}) == $usb->{id} } @l) {
	    $e->{usb} = $usb;
	}
    }

    @l;
}

sub serialPorts() { map { "ttyS$_" } 0..7 }
sub serialPort2text {
    $_[0] =~ /ttyS(\d+)/ ? "$_[0] / COM" . ($1 + 1) : $_[0];
}

=back

=head1 Network

=over

=cut

sub getSerialModem {
    my ($modules_conf, $o_mouse) = @_;
    my $mouse = $o_mouse || {};
    $mouse->{device} = readlink "/dev/mouse";
    my $serdev = arch() =~ /mips/ ? "8250" : "serial";

    eval { modules::load($serdev) };

    my @modems;

    probeSerialDevices();
    foreach my $port (serialPorts()) {
	next if $mouse->{device} =~ /$port/;
     my $device = "/dev/$port";
	next if !-e $device || !hasModem($device);
     $serialprobe{$device}{device} = $device;
     push @modems, $serialprobe{$device};
    }
    my @devs = pcmcia_probe();
    foreach my $modem (@modems) {
        foreach (@devs) { $_->{device} and $modem->{device} = $_->{device} }
    }
    @modems;
}

=item getModem()

Return list of modems (serial, WinModems)
=cut

our $detect_serial_modem = 1;
sub getModem {
    my ($modules_conf) = @_;
    ($detect_serial_modem ? getSerialModem($modules_conf, {}) : ()), get_winmodems();
}

sub get_winmodems() {
    matching_driver__regexp('www\.linmodems\.org'),
    matching_driver(list_modules::category2modules('network/modem'),
    list_modules::category2modules('network/slmodem'));
}

sub getBewan() {
    matching_desc__regexp('Bewan Systems\|.*ADSL|BEWAN ADSL USB|\[Unicorn\]');
}

# generate from the following from eci driver sources:
# perl -e 'while (<>) { print qq("$1$2",\n"$3$4",\n) if /\b([a-z\d]*)\s*([a-z\d]*)\s*([a-z\d]*)\s*([a-z\d]*)$/ }' <modems.db|sort|uniq
sub getECI() {
    my @ids = (
              "05090801",
              "05472131",
              "06590915",
              "071dac81",
              "08ea00c9",
              "09150001",
              "09150002",
              "091500ca",
              "091500e7",
              "09150101",
              "09150102",
              "09150204",
              "09150206",
              "09150802",
              "09150916",
              "09158000",
              "09158001",
              "0915ac82",
              "0baf00e6",
              "0e600100",
              "0e600101",
              "0fe88000",
              "16900203",
              "16900205",
             );
    grep { member(sprintf("%04x%04x%04x%04x", $_->{vendor}, $_->{id}, $_->{subvendor}, $_->{subid}), @ids) } usb_probe();
}

=item get_xdsl_usb_devices()

Return list of xDSL devices.

=cut

sub get_xdsl_usb_devices() {
    my @bewan = detect_devices::getBewan();
    $_->{driver} = $_->{bus} eq 'USB' ? 'unicorn_usb_atm' : 'unicorn_pci_atm' foreach @bewan;
    my @eci = detect_devices::getECI();
    $_->{driver} = 'eciusb' foreach @eci;
    my @usb = detect_devices::probe_category('network/usb_dsl');
    $_->{description} = "USB ADSL modem (eagle chipset)" foreach
      grep { $_->{driver} eq 'ueagle_atm' && $_->{description} eq '(null)' } @usb;
    @usb, @bewan, @eci;
}

=item is_lan_interface($device)

Is it a LAN interface (blacklist some interfaces (PPP, ...)?

=cut

sub is_lan_interface {
    #- we want LAN like interfaces here (eg: ath|br|eth|fddi|plip|ra|tr|usb|wlan).
    #- there's also bnep%d for bluetooth, bcp%d...
    #- we do this by blacklisting the following interfaces:
    #-   hso%d are created by drivers/net/usb/hso.c
    #-   ippp|isdn|plip|ppp (initscripts suggest that isdn%d can be created but kernel sources claim not)
    #-   ippp%d are created by drivers/isdn/i4l/isdn_ppp.c
    #-   plip%d are created by drivers/net/plip.c
    #-   ppp%d are created by drivers/net/ppp_generic.c
    #-   pan%d are created by bnep
    is_useful_interface($_[0]) &&
    $_[0] !~ /^(?:hso|ippp|isdn|plip|ppp|pan)/;
}

=item is_useful_interface($device)

Is it a usefull interface (blacklist some interfaces (loopback, sit, wifi, ...)?

=cut

sub is_useful_interface {
    #- sit0 which is *always* created by net/ipv6/sit.c, thus is always created since net.agent loads ipv6 module
    #- wifi%d are created by 3rdparty/hostap/hostap_hw.c (pseudo statistics devices, #14523)
    #- wmaster%d are created by net/mac80211/ieee80211.c ("master" 802.11 device)
    #- ax*, rose*, nr*, bce* and scc* are Hamradio devices (#28776)
    $_[0] !~ /^(?:lo|sit0|wifi|wmaster|ax|rose|nr|bce|scc)/;
}

=item is_wireless_interface($device)

Is it a WiFi interface?

=cut

sub is_wireless_interface {
    my ($interface) = @_;
    #- some wireless drivers don't always support the SIOCGIWNAME ioctl
    #-   ralink devices need to be up to support it
    #-   wlan-ng (prism2_*) need some special tweaks to support it
    #- use sysfs as fallback to detect wireless interfaces,
    #- i.e interfaces for which get_wireless_stats() is available
    c::isNetDeviceWirelessAware($interface)
        || -e "/sys/class/net/$interface/wireless"
        || -e "/sys/class/net/$interface/phy80211";
}

=item get_all_net_devices()

Returns list of all network devices

=cut

sub get_all_net_devices() {
    #- we need both detection schemes since:
    #-   get_netdevices() use the SIOCGIFCONF ioctl that does not list interfaces that are down
    #-   /proc/net/dev does not list VLAN and IP aliased interfaces
    uniq(
        (map { if_(/^\s*([A-Za-z0-9:\.]*):/, $1) } cat_("/proc/net/dev")),
        c::get_netdevices(),
    );
}

=item get_lan_interfaces()

Returns list of all LAN devices

=cut

sub get_lan_interfaces() { grep { is_lan_interface($_) } get_all_net_devices() }

=item get_net_interfaces()

Returns list of all useful network devices

=cut

sub get_net_interfaces() { grep { is_useful_interface($_) } get_all_net_devices() }

=item get_wireless_interface()

Returns list of all Wireless devices

=cut

sub get_wireless_interface() { find { is_wireless_interface($_) } get_lan_interfaces() }

=item is_bridge_interface($interface)

Is it a bridge?

=cut

sub is_bridge_interface {
    my ($interface) = @_;
    -f "/sys/class/net/$interface/bridge/bridge_id";
}

=back

=head1 Enumerating devices

=over

=cut

sub get_ids_from_sysfs_device {
    my ($dev_path) = @_;
    my $dev_cat = sub { chomp_(cat_("$dev_path/$_[0]")) };
    my $usb_root = -f "$dev_path/bInterfaceNumber" && "../" || -f "$dev_path/idVendor" && "";
    my $is_pcmcia = -f "$dev_path/card_id";
    my $sysfs_ids;
    my $bus = get_sysfs_field_from_link($dev_path, "subsystem");
    #- FIXME: use $bus
    if ($is_pcmcia) {
      $sysfs_ids = { modalias => $dev_cat->('modalias') };
    } else {
        $sysfs_ids = $bus eq 'ieee1394' ?
          {
            version => "../vendor_id",
            specifier_id => "specifier_id",
            specifier_version => "version",
          } :
        defined $usb_root ?
          { id => $usb_root . 'idProduct', vendor => $usb_root . 'idVendor' } :
          { id => "device", subid => "subsystem_device", vendor => "vendor", subvendor => "subsystem_vendor" };
        $_ = hex($dev_cat->($_)) foreach values %$sysfs_ids;
        if ($bus eq 'pci') {
            my $device = basename(readlink $dev_path);
            my @ids = $device =~ /^(.{4}):(.{2}):(.{2})\.(.+)$/;
            @$sysfs_ids{qw(pci_domain pci_bus pci_device pci_function)} = map { hex($_) } @ids if @ids;
        }
    }
    $sysfs_ids;
}

sub device_matches_sysfs_ids {
    my ($device, $sysfs_ids) = @_;
    every { defined $device->{$_} && member($device->{$_}, $sysfs_ids->{$_}, 0xffff) } keys %$sysfs_ids;
}

sub device_matches_sysfs_device {
  my ($device, $dev_path) = @_;
  device_matches_sysfs_ids($device, get_ids_from_sysfs_device($dev_path));
}

sub getUPS() {
    # MGE serial PnP devices:
    (map {
        $_->{port} = $_->{DEVICE};
        $_->{bus} = "Serial";
        $_->{driver} = "mge-utalk" if $_->{MODEL} =~ /0001/;
        $_->{driver} = "mge-shut"  if $_->{MODEL} =~ /0002/;
        $_->{media_type} = 'UPS';
        $_->{description} = "MGE UPS SYSTEMS|UPS - Uninterruptible Power Supply" if $_->{MODEL} =~ /000[12]/;
        $_;
    } grep { $_->{DESCRIPTION} =~ /MGE UPS/ } values %serialprobe),
    # USB UPSs;
    (map { ($_->{name} = $_->{description}) =~ s/.*\|//; $_ }
        map {
            if ($_->{description} =~ /Back-UPS/ && $_->{driver} eq 'usbhid') {
                #- FIXME: should not be hardcoded, use $_->{sysfs_device} . */usb:(hiddev\d+)
                #- the device should also be assigned to the ups user
                $_->{port} = "/dev/hiddev0";
                $_->{driver} = 'hidups';
                $_;
            } elsif ($_->{description} =~ /^MGE UPS Systems\|/ && $_->{driver} =~ /ups$/) {
                $_->{port} = "auto";
                $_->{media_type} = 'UPS';
                $_->{driver} = 'newhidups';
                $_;
            } else {
                ();
            }
        } usb_probe());
}

$pcitable_addons = <<'EOF';
# add here lines conforming the pcitable format (0xXXXX\t0xXXXX\t"\w+"\t".*")
EOF

$usbtable_addons = <<'EOF';
# add here lines conforming the usbtable format (0xXXXX\t0xXXXX\t"\w+"\t".*")
EOF

sub install_addons {
    my ($prefix) = @_;

    #- this test means install_addons can only be called after ldetect-lst has been installed.
    if (-d "$prefix/usr/share/ldetect-lst") {
	my $update = 0;
	foreach ([ 'pcitable.d', $pcitable_addons ], [ 'usbtable.d', $usbtable_addons ]) {
	    my ($dir, $str) = @$_;
	    -d "$prefix/usr/share/ldetect-lst/$dir" && $str =~ /^[^#]/m and $update = 1 and
	      output "$prefix/usr/share/ldetect-lst/$dir/95drakx.lst", $str;
	}
	$update and run_program::rooted($prefix, "/usr/sbin/update-ldetect-lst");
    }
}

sub add_addons {
    my ($addons, @l) = @_;

    foreach (split "\n", $addons) {
	/^\s/ and die qq(bad detect_devices::probeall_addons line "$_");
	s/^#.*//;
	s/"(.*?)"/$1/g;
	next if /^$/;
	my ($vendor, $id, $driver, $description) = split("\t", $_, 4) or die qq(bad detect_devices::probeall_addons line "$_");
	foreach (@l) {
	    $_->{vendor} == hex $vendor && $_->{id} == hex $id or next;
	    put_in_hash($_, { driver => $driver, description => $description });
	}
    }
    @l;
}

sub get_pci_sysfs_path {
    my ($l) = @_;
    sprintf('%04x:%02x:%02x.%d', $l->{pci_domain}, $l->{pci_bus}, $l->{pci_device}, $l->{pci_function});
}


my (@pci, @usb);

sub pci_probe__real() {
    add_addons($pcitable_addons, map {
	my $l = $_;
	$l->{bus} = 'PCI';
	$l->{sysfs_device} = '/sys/bus/pci/devices/' . get_pci_sysfs_path($l);
	$l;
    } c::pci_probe());
}

=item pci_probe()

Cache the result of C<c::pci_probe()> and return the list of items in the PCI devices.

=cut

sub pci_probe() {
    state $done;
    if (!$done) {
        @pci = pci_probe__real() if !@pci;
        foreach (@pci) {
            $_->{nice_bus} = $_->{is_pciexpress} ? "PCI Express" : "PCI";
        }
    }
    @pci;
}

sub usb_probe__real() {
    -e "/sys/kernel/debug/usb/devices" or return;

    add_addons($usbtable_addons, map {
	my $l = $_;
	$l->{media_type} = join('|', grep { $_ ne '(null)' } split('\|', $l->{media_type}));
	$l->{sysfs_device} = "/sys/bus/usb/devices/$l->{pci_bus}-" . ($l->{usb_port} + 1);
	$l->{bus} = 'USB';
	$l;
    } c::usb_probe());
}

=item usb_probe()

Cache the result of C<c::usb_probe()> and return the list of items in the USB devices.

=cut

sub usb_probe() {
    if ($::isStandalone && @usb) {
	    @usb;
    } else {
	    @usb = usb_probe__real();
    }
}

=item firewire_probe()

Return list of Firewire controllers

=cut

sub firewire_probe() {
    my $dev_dir = '/sys/bus/ieee1394/devices';
    my @l = map {
        my $dir = "$dev_dir/$_";
        my $get = sub { chomp_(cat_($_[0])) };
        {
            version => hex($get->("$dir/../vendor_id")),
            specifier_id => hex($get->("$dir/specifier_id")),
            specifier_version => hex($get->("$dir/version")),
            bus => 'Firewire',
            sysfs_device => $dir,
        };
    } grep { -f "$dev_dir/$_/specifier_id" } all($dev_dir);

    my $e;
    foreach (cat_('/proc/bus/ieee1394/devices')) {
	if (m!Vendor/Model ID: (.*) \[(\w+)\] / (.*) \[(\w+)\]!) {
	    push @l, $e = { 
			   vendor => hex($2), id => hex($4), 
			   description => join('|', $1, $3),
			   bus => 'Firewire',
			  };
	} elsif (/Software Specifier ID: (\w+)/) {
	    $e->{specifier_id} = hex $1;
	} elsif (/Software Version: (\w+)/) {
	    $e->{specifier_version} = hex $1;	    
	}
    }

    foreach (@l) {
	if ($_->{specifier_id} == 0x00609e && $_->{specifier_version} == 0x010483) {
	    add2hash($_, { driver => 'sbp2', description => "Generic Firewire Storage Controller" });
	} elsif ($_->{specifier_id} == 0x00005e && $_->{specifier_version} == 0x000001) {
	    add2hash($_, { driver => 'eth1394', description => "IEEE 1394 IPv4 Driver (IPv4-over-1394 as per RFC 2734)" });
	}
    }
    @l;
}

=item pcmcia_controller_probe()

Return list of PCMCIA controllers

=cut

sub pcmcia_controller_probe() {
    my ($controller) =  probe_category('bus/pcmcia');
    if (!$controller && !$::testing && !$::noauto && arch() =~ /i.86/) {
        my $driver = c::pcmcia_probe();
        $controller = { driver => $driver, description => "PCMCIA controller ($driver)" } if $driver;
    }
    $controller;
}

=item pcmcia_probe()

Return list of PCMCIA devices (eg: Ethernet PCMCIA cards, ...)

=cut

sub pcmcia_probe() {
    require modalias;
    require modules;
    my $dev_dir = '/sys/bus/pcmcia/devices';
    map {
        my $dir = "$dev_dir/$_";
        my $get = sub { chomp_(cat_("$dir/$_[0]")) };
        my $class_dev = first(glob_("$dir/tty/tty*"));
        my $device = $class_dev && basename($class_dev);
        my $modalias = $get->('modalias');
        my $driver = get_sysfs_field_from_link($dir, 'driver');
        #- fallback on modalias result
        #- but only if the module isn't loaded yet (else, it would already be binded)
        #- this prevents from guessing the wrong driver for multi-function devices
        my $module = $modalias && first(modalias::get_modules($modalias));
        $driver ||= !member($module, modules::loaded_modules()) && $module;
        {
            description => join(' ', grep { $_ } map { $get->("prod_id$_") } 1 .. 4),
            driver => $driver,
            if_($modalias, modalias => $modalias),
            if_($device, device => $device),
            bus => 'PCMCIA',
            sysfs_device => $dir,
        };
    } all($dev_dir);
}

=item dmi_probe()

Cache the result of c::dmi_probe() (aka C<dmidecode>) and return the list of items in the DMI table

=cut

sub dmi_probe() {
    state $dmi_probe;
    return if arch() !~ /86/;
    $dmi_probe ||= $> ? [] : [ c::dmi_probe() ];
    @$dmi_probe;
}

=item probeall()

Returns a list of all PCI/USB/Firewire/PCMCIA/DMI/HID devices.
It's usually called through a higher level filtering function.

=cut

# pcmcia_probe provides field "device", used in network.pm
sub probeall() {
    return if $::noauto;

    pci_probe(), usb_probe(), firewire_probe(), pcmcia_probe(), dmi_probe(), getInputDevices_and_usb();
}
sub probeall_update_cache() {
    return if $::noauto;
    @pci = pci_probe__real(), @usb = usb_probe__real(), firewire_probe(), pcmcia_probe(), dmi_probe();
}
sub matching_desc__regexp {
    my ($regexp) = @_;
    grep { $_->{description} =~ /$regexp/i } probeall();
}
sub matching_driver__regexp {
    my ($regexp) = @_;
    grep { $_->{driver} =~ /$regexp/i } probeall();
}

sub matching_driver {
    my (@list) = @_;
    grep { member($_->{driver}, @list) } probeall();
}
sub probe_name {
    my ($name) = @_;
    map { $_->{driver} =~ /^$name:(.*)/ } probeall();
}
sub probe_unique_name {
    my ($name) = @_;
    my @l = uniq(probe_name($name));
    if (@l > 1) {
	log::l("oops, more than one $name from probe: ", join(' ', @l));
    }
    $l[0];
}

sub stringlist {
    my ($b_verbose) = @_;
    map {
	my $ids = $b_verbose || $_->{description} eq '(null)' ?  sprintf("vendor:%04x device:%04x", $_->{vendor}, $_->{id}) : '';
	my $subids = $_->{subid} && $_->{subid} != 0xffff ? sprintf("subv:%04x subd:%04x", $_->{subvendor}, $_->{subid}) : '';
	sprintf("%-16s: %s%s%s", 
		$_->{driver} || 'unknown', 
		$_->{description},
		$_->{media_type} ? sprintf(" [%s]", $_->{media_type}) : '',
		$ids || $subids ? " ($ids" . ($ids && $subids && " ") . "$subids)" : '',
	       );
    } probeall(); 
}

sub tryOpen($) {
    my $F;
    sysopen($F, devices::make($_[0]), c::O_NONBLOCK()) && $F;
}

sub tryWrite($) {
    my $F;
    sysopen($F, devices::make($_[0]), 1 | c::O_NONBLOCK()) && $F;
}

my @dmesg;
sub syslog() {
    if (-r "/tmp/syslog") {
	map { /<\d+>(.*)/ } cat_("/tmp/syslog");
    } else {
	@dmesg = `/bin/dmesg` if !@dmesg;
	@dmesg;
    }
}

sub get_mac_model() {
    my $mac_model = cat_("/proc/device-tree/model") || die "Cannot open /proc/device-tree/model";
    log::l("Mac model: $mac_model");
    $mac_model;	
}

sub get_mac_generation() {
    cat_('/proc/cpuinfo') =~ /^pmac-generation\s*:\s*(.*)/m ? $1 : "Unknown Generation";	
}

sub hasSMP() { 
    return if $::testing;
    (any { /NR_CPUS limit of 1 reached/ } syslog()) ||
     (any { /^processor\s*:\s*(\d+)/ && $1 > 0 } cat_('/proc/cpuinfo')) ||
      any { /\bProcessor #(\d+)\s+(\S*)/ && $1 > 0 && $2 ne 'invalid' } syslog();
}
sub hasPCMCIA() { $::o->{pcmcia} }

my (@dmis, $dmidecode_already_runned);

=item dmidecode() 

Return list of DMI categories from DMI table

=cut
# we return a list b/c several DMIs have the same name:
sub dmidecode() {
    return @dmis if $dmidecode_already_runned;

    return if $>;
    my ($ver, @l) = arch() =~ /86/ ? run_program::get_stdout('dmidecode') : ();

    my ($major, $minor) = $ver =~ /(\d+)\.(\d+)/;

    #- drop header
    shift @l while @l && $l[0] ne "\n";

    foreach (@l) {
	next if /TRUNCATED/;
	if (/^\t(.*)/) {
	    $dmis[-1]{string} .= "$1\n";
	    $dmis[-1]{$1} = $2 if /^\t(.*): (.*)$/;
	} elsif (my ($s) = /^(.*)/) {
	    next if $s =~ /^$/ || $s =~ /\bDMI type \d+/;
	    $s =~ s/ Information$//;
	    push @dmis, { name => $s };
	}
    }
    $dmidecode_already_runned = 1;
    @dmis;
}

=item dmi_detect_memory($category)

Return only one category from DMI table

=cut

sub dmidecode_category {
    my ($cat) = @_;
    my @l = grep { $_->{name} eq $cat } dmidecode();
    wantarray() ? @l : $l[0] || {};
}

=item dmi_detect_memory()

Return RAM size in MB according to DMI table

=cut

sub dmi_detect_memory() {
    my @l1 = map { $_->{'Enabled Size'} =~ /(\d+) MB/ && $1 } dmidecode_category('Memory Module');
    my @l2 = map { $_->{'Form Factor'} =~ /^(SIMM|SIP|DIP|DIMM|FB-DIMM|RIMM|SODIMM|SRIMM)$/ && 		     
		     ($_->{Size} =~ /(\d+) MB/ && $1 || $_->{Size} =~ /(\d+) kB/ && $1 * 1024);
		 } dmidecode_category('Memory Device');
    max(sum(@l1), sum(@l2));
}

=back

=head1 Test helpers

=over

=item computer_info()

Analyse "Chassis" & "Bios" in dmidecode output and return a hash of flags/values (isLaptop, isServer, BIOS_Year)

=cut

sub computer_info() {
     my $Chassis = dmidecode_category('Chassis')->{Type} =~ /(\S+)/ && $1;

     my $date = dmidecode_category('BIOS')->{'Release Date'} || '';
     my $BIOS_Year = $date =~ m!(\d{4})! && $1 ||
	             $date =~ m!\d\d/\d\d/(\d\d)! && "20$1";
	
     +{ 
	 isLaptop => member($Chassis, 'Portable', 'Laptop', 'Notebook', 'Hand Held', 'Sub Notebook', 'Docking Station'),
	 isServer => member($Chassis, 'Pizza Box', 'Main Server Chassis', 'Rack Mount Chassis', 'Blade'),
	 if_($BIOS_Year, BIOS_Year => $BIOS_Year),
     };
}

=item isLaptop()

try to detect a laptop. We assume the following is an indication of a laptop:

=over 4

=item *

pcmcia service

=item *

C<computer_info()> (really C<dmidecode>) telling us it's a laptop

=item *

ACPI lid button

=item *

a regexp to match graphics card apparently only used for such systems.

=item *

Mobility CPU

=item *

having Type as Laptop in some device

=item *

Intel ipw2100/2200/3945 Wireless

=back

=cut

sub isLaptop() {
      computer_info()->{isLaptop}
	|| glob_("/sys/bus/acpi/devices/PNP0C0D:*") #- ACPI lid button
	|| (matching_desc__regexp('C&T.*655[45]\d') || matching_desc__regexp('C&T.*68554') ||
	    matching_desc__regexp('Neomagic.*Magic(Media|Graph)') ||
	    matching_desc__regexp('ViRGE.MX') || matching_desc__regexp('S3.*Savage.*[IM]X') ||
	    matching_desc__regexp('Intel Corporation\|Mobile') ||
	    matching_desc__regexp('\bATI\b.*(Mobility|\bLT\b)'))
	|| (any { $_->{'model name'} =~ /\b(mobile|C7-M)\b/i } getCPUs())
	|| probe_unique_name("Type") eq 'laptop'
        #- ipw2100/2200/3945 are Mini-PCI (Express) adapters
	|| (any { member($_->{driver}, qw(ipw2100 ipw2200 ipw3945)) } pci_probe());
}

=item isServer()

Is it a server?

=cut

sub isServer() {
    computer_info()->{isServer}
      || (any { $_->{Type} =~ /ECC/ } dmidecode_category('Memory Module'))
      || dmidecode_category('System Information')->{Manufacturer} =~ /Supermicro/i
      || dmidecode_category('System Information')->{'Product Name'} =~ /NetServer|Proliant|PowerEdge|eServer|IBM System x|ThinkServer/i
      || matching_desc__regexp('LSI Logic.*SCSI')
      || matching_desc__regexp('MegaRAID')
      || matching_desc__regexp('NetServer')
      || (any { $_->{'model name'} =~ /(Xeon|Opteron)/i } getCPUs());
}

sub BIGMEM() {
    arch() !~ /x86_64/ && $> == 0 && dmi_detect_memory() > 4 * 1024;
}

sub is_i586() {
    return 0 if arch() !~ /86/;
    my $cpuinfo = cat_('/proc/cpuinfo');
    $cpuinfo =~ /^cpu family\s*:\s*(\d+)/m && $1 < 6 ||
      $cpuinfo =~ /^model name\s*:\s*Transmeta.* TM5800/m || # mdvbz#37866
      !has_cpu_flag('cmov');
}

sub is_mips_lemote() {
    to_bool(cat_('/proc/cpuinfo') =~ /lemote/);
}

sub is_mips_ict() {
    to_bool(cat_('/proc/cpuinfo') =~ /ict/);
}

sub is_mips_gdium() {
    to_bool(cat_('/proc/cpuinfo') =~ /gdium/);
}

sub is_mips_st_ls2f() {
    to_bool(cat_('/proc/cpuinfo') =~ /st-ls2f/);
}

sub is_arm_openrd_client() {
    to_bool(cat_('/proc/cpuinfo') =~ /OpenRD Client/);
}

sub is_arm_versatile() {
    to_bool(cat_('/proc/cpuinfo') =~ /ARM-Versatile/);
}

sub is_arm_efikamix() {
    to_bool(cat_('/proc/cpuinfo') =~ /Efika MX/);
}

sub is_xbox() {
    any { $_->{vendor} == 0x10de && $_->{id} == 0x02a5 } pci_probe();
}

=item virt_technology()

Returns the virtualization technology (eg: kvm, oracle, ...)

=cut

sub virt_technology() {
    state $tech;
    $tech ||= chomp_(run_program::get_stdout('systemd-detect-virt'));
}

=item is_hyperv()

Are we running under Hyper-V hypervisor?

=cut

sub is_hyperv() {
    virt_technology() eq 'microsoft';
}

=item is_virtualbox()

Are we running under VirtualBox hypervisor?

=cut

sub is_virtualbox() {
    virt_technology() eq 'oracle';
}

=item is_vmware()

Are we running under VMware hypervisor?

=cut

sub is_vmware() {
    virt_technology() eq 'vmware';
}

=item is_netbook_nettop()

Is it a NetBook?

=cut

sub is_netbook_nettop() {
    my @cpus = getCPUs();
    (any { $_->{'model name'} =~ /(\bIntel\(R\) Atom\(TM\)\B)/i } @cpus) ||
    (any { $_->{'model name'} =~ /(\bIntel\(R\) Celeron\(R\) M processor\b|\bVIA C7-M Processor\b|\bGeode\(TM\)\B)/i && $_->{'cpu MHz'} < 1500 } @cpus);
}

=item has_low_resources()

Is it a low resource machine?

=cut

sub has_low_resources() {
    availableRamMB() < 100 || arch() =~ /i.86/ && ix86_cpu_frequency() < 350;
}

=item need_light_desktop()

Does it need a light desktop (netbook or low resources machine)?

=cut

sub need_light_desktop() {
    has_low_resources() || is_netbook_nettop();
}

=item has_cpu_flag($flag)

Does CPU has this flag

=cut

sub has_cpu_flag {
    my ($flag) = @_;
    cat_('/proc/cpuinfo') =~ /^flags.*\b$flag\b/m;
}

=item sub matching_types()

Returns a hash of flags (laptop, hyperv, touchpad, 64bit, wireless, ...)

=cut

sub matching_types() {
    +{
	'64bit' => to_bool(arch() =~ /64/),
	hyperv => is_hyperv(),
	laptop => isLaptop(),
	mips_ict => is_mips_ict(),
	mips_lemote => is_mips_lemote(),
	mips_st_ls2f => is_mips_st_ls2f(),
	numpa => hasNumpad(),
	touchpad => hasTouchpad(),
	virtualbox => is_virtualbox(),
	vmware => is_vmware(),
	wireless => to_bool(get_wireless_interface() || probe_category('network/wireless')),
    };
}

=item sub hasCPUMicrocode()

Does CPU need microcode updates?

=cut

sub hasCPUMicrocode() {
    state $hasCPUMicrocode;
    if (!defined $hasCPUMicrocode) {
        $hasCPUMicrocode = to_bool(find { 'microcode' } modules::loaded_modules());
    }
    return $hasCPUMicrocode;
}

=item sub hasCPUFreq()

Does CPU support cpufreq?

=cut

sub hasCPUFreq()     {
    require cpufreq;
     to_bool(cpufreq::get_modules())
       || cat_('/proc/cpuinfo') =~ /AuthenticAMD/ && arch() =~ /x86_64/
       || cat_('/proc/cpuinfo') =~ /model name.*Intel\(R\) Core\(TM\)2 CPU/;
}

=item sub hasWacom()

is there a Wacom tablet?

=cut

sub hasWacom()     { find { $_->{vendor} == 0x056a || $_->{driver} =~ /wacom/ } usb_probe() }

=item sub hasTouchpad()

is there a touchpad?

=cut

sub hasTouchpad()  { any { $_->{Synaptics} || $_->{ALPS} || $_->{Elantech} } getInputDevices() }

=item sub hasNumpad()

is there a numeric pad?

=cut

sub hasNumpad()    { any { $_->{Numpad} } getInputDevices() }

sub usbWacom()     { grep { $_->{vendor} eq '056a' } getInputDevices() }
sub usbKeyboards() { grep { $_->{media_type} =~ /\|Keyboard/ } usb_probe() }
sub usbStorage()   { grep { $_->{media_type} =~ /Mass Storage\|/ } usb_probe() }
sub has_mesh()     { find { /mesh/ } all_files_rec("/proc/device-tree") }
sub has_53c94()    { find { /53c94/ } all_files_rec("/proc/device-tree") }

sub usbKeyboard2country_code {
    my ($usb_kbd) = @_;
    my ($F, $tmp);
    # FIXME: usbfs is dead! we should poke somewhere in /sys/ !!!!
    sysopen($F, sprintf("/proc/bus/usb/%03d/%03d", $usb_kbd->{pci_bus}, $usb_kbd->{pci_device}), 0) and
      sysseek $F, 0x28, 0 and
      sysread $F, $tmp, 1 and
      unpack("C", $tmp);
}

sub probeSerialDevices() {
    require list_modules;
    require modules;
    modules::append_to_modules_loaded_at_startup_for_all_kernels(modules::load_category($::o->{modules_conf}, 'various/serial'));
    foreach (0..3) {
	#- make sure the device are created before probing,
	devices::make("/dev/ttyS$_");
	#- and make sure the device is a real terminal (major is 4).
	int((stat "/dev/ttyS$_")[6]/256) == 4 or $serialprobe{"/dev/ttyS$_"} = undef;
    }

    #- for device already probed, we can safely (assuming device are
    #- not moved during install :-)
    #- include /dev/mouse device if using an X server.
    mkdir_p("/var/lock");
    -l "/dev/mouse" and $serialprobe{"/dev/" . readlink "/dev/mouse"} = undef;
    foreach (keys %serialprobe) { m|^/dev/(.*)| and touch "/var/lock/LCK..$1" }

    print STDERR "Please wait while probing serial ports...\n";
    #- start probing all serial ports... really faster than before ...
    #- ... but still take some time :-)
    my %current; 
    foreach (run_program::get_stdout('serial_probe')) {
	if (/^\s*$/) {
	    $serialprobe{$current{DEVICE}} = { %current } if $current{DEVICE};
	    %current = ();
	} elsif (/^([^=]+)=(.*?)\s*$/) {
	    $current{$1} = $2;
	}
    }

    foreach (values %serialprobe) {
	$_->{DESCRIPTION} =~ /modem/i and $_->{CLASS} = 'MODEM'; #- hack to make sure a modem is detected.
	$_->{DESCRIPTION} =~ /olitec/i and $_->{CLASS} = 'MODEM'; #- hack to make sure such modem gets detected.
	log::l("probed $_->{DESCRIPTION} of class $_->{CLASS} on device $_->{DEVICE}");
    }
}

sub probeSerial($) { $serialprobe{$_[0]} }

sub hasModem($) {
    $serialprobe{$_[0]} && $serialprobe{$_[0]}{CLASS} eq 'MODEM' && $serialprobe{$_[0]}{DESCRIPTION};
}

sub hasMousePS2 {
    my $t; sysread(tryOpen($_[0]) || return, $t, 256) != 1 || $t ne "\xFE";
}

sub probeall_unavailable_modules() {
    map {
        my $driver = $_->{driver};
        $driver !~ /:/ &&
        !member($driver, 'hub', 'unknown', 'amd64_agp') &&
        !modules::module_is_available($driver) ?
          $driver :
          @{[]};
    } probeall();
}

sub probeall_dkms_modules() {
    my @unavailable_modules = probeall_unavailable_modules() or return;
    require modalias;
    my $dkms_modules = modalias::parse_file_modules($::prefix . "/usr/share/ldetect-lst/dkms-modules.alias");
    intersection([ keys(%$dkms_modules) ], \@unavailable_modules);
}

sub usb_description2removable {
    local ($_) = @_;
    return 'camera' if /\bcamera\b/i;
    return 'memory_card' if /\bmemory\s?stick\b/i || /\bcompact\s?flash\b/i || /\bsmart\s?media\b/i;
    return 'memory_card' if /DiskOnKey/i || /IBM-DMDM/i;
    return 'zip' if /\bzip\s?(100|250|750)/i;
    return 'floppy' if /\bLS-?120\b/i;
    return;
}

sub usb2removable {
    my ($e) = @_;
    $e->{usb_driver} or return;

    if ($e->{usb_driver} =~ /Removable:(.*)/) {
	return $1;
    } elsif (my $name = usb_description2removable($e->{usb_description})) {
	return $name;
    }
    undef;
}

sub suggest_mount_point {
    my ($e) = @_;

    my $name = $e->{media_type};
    if (member($e->{media_type}, 'hd', 'fd')) {
	if (exists $e->{usb_driver}) {
	    $name = usb2removable($e) || 'removable';
	} elsif (isZipDrive($e)) {
	    $name = 'zip';
	} elsif ($e->{media_type} eq 'fd') {
	    $name = 'floppy';
	} else {
	    log::l("suggest_mount_point: do not know what to with hd $e->{device}");
	}
    }
    $name;
}

=back

=head1 SEE ALSO

See L<hardware_detection> for the overall view.

=cut

1;

#- Local Variables:
#- mode:cperl
#- tab-width:8
#- End: