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
|
/*
Unix SMB/CIFS implementation.
name query routines
Copyright (C) Andrew Tridgell 1994-1998
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include "includes.h"
/* nmbd.c sets this to True. */
BOOL global_in_nmbd = False;
/****************************
* SERVER AFFINITY ROUTINES *
****************************/
/* Server affinity is the concept of preferring the last domain
controller with whom you had a successful conversation */
/****************************************************************************
****************************************************************************/
#define SAFKEY_FMT "SAF/DOMAIN/%s"
#define SAF_TTL 900
static char *saf_key(const char *domain)
{
char *keystr;
asprintf( &keystr, SAFKEY_FMT, strupper_static(domain) );
return keystr;
}
/****************************************************************************
****************************************************************************/
BOOL saf_store( const char *domain, const char *servername )
{
char *key;
time_t expire;
BOOL ret = False;
if ( !domain || !servername ) {
DEBUG(2,("saf_store: Refusing to store empty domain or servername!\n"));
return False;
}
if ( !gencache_init() )
return False;
key = saf_key( domain );
expire = time( NULL ) + SAF_TTL;
DEBUG(10,("saf_store: domain = [%s], server = [%s], expire = [%u]\n",
domain, servername, (unsigned int)expire ));
ret = gencache_set( key, servername, expire );
SAFE_FREE( key );
return ret;
}
/****************************************************************************
****************************************************************************/
char *saf_fetch( const char *domain )
{
char *server = NULL;
time_t timeout;
BOOL ret = False;
char *key = NULL;
if ( !domain ) {
DEBUG(2,("saf_fetch: Empty domain name!\n"));
return NULL;
}
if ( !gencache_init() )
return False;
key = saf_key( domain );
ret = gencache_get( key, &server, &timeout );
SAFE_FREE( key );
if ( !ret ) {
DEBUG(5,("saf_fetch: failed to find server for \"%s\" domain\n", domain ));
} else {
DEBUG(5,("saf_fetch: Returning \"%s\" for \"%s\" domain\n",
server, domain ));
}
return server;
}
/****************************************************************************
Generate a random trn_id.
****************************************************************************/
static int generate_trn_id(void)
{
static int trn_id;
if (trn_id == 0) {
sys_srandom(sys_getpid());
}
trn_id = sys_random();
return trn_id % (unsigned)0x7FFF;
}
/****************************************************************************
Parse a node status response into an array of structures.
****************************************************************************/
static NODE_STATUS_STRUCT *parse_node_status(char *p, int *num_names, struct node_status_extra *extra)
{
NODE_STATUS_STRUCT *ret;
int i;
*num_names = CVAL(p,0);
if (*num_names == 0)
return NULL;
ret = SMB_MALLOC_ARRAY(NODE_STATUS_STRUCT,*num_names);
if (!ret)
return NULL;
p++;
for (i=0;i< *num_names;i++) {
StrnCpy(ret[i].name,p,15);
trim_char(ret[i].name,'\0',' ');
ret[i].type = CVAL(p,15);
ret[i].flags = p[16];
p += 18;
DEBUG(10, ("%s#%02x: flags = 0x%02x\n", ret[i].name,
ret[i].type, ret[i].flags));
}
/*
* Also, pick up the MAC address ...
*/
if (extra) {
memcpy(&extra->mac_addr, p, 6); /* Fill in the mac addr */
}
return ret;
}
/****************************************************************************
Do a NBT node status query on an open socket and return an array of
structures holding the returned names or NULL if the query failed.
**************************************************************************/
NODE_STATUS_STRUCT *node_status_query(int fd,struct nmb_name *name,
struct in_addr to_ip, int *num_names,
struct node_status_extra *extra)
{
BOOL found=False;
int retries = 2;
int retry_time = 2000;
struct timeval tval;
struct packet_struct p;
struct packet_struct *p2;
struct nmb_packet *nmb = &p.packet.nmb;
NODE_STATUS_STRUCT *ret;
ZERO_STRUCT(p);
nmb->header.name_trn_id = generate_trn_id();
nmb->header.opcode = 0;
nmb->header.response = False;
nmb->header.nm_flags.bcast = False;
nmb->header.nm_flags.recursion_available = False;
nmb->header.nm_flags.recursion_desired = False;
nmb->header.nm_flags.trunc = False;
nmb->header.nm_flags.authoritative = False;
nmb->header.rcode = 0;
nmb->header.qdcount = 1;
nmb->header.ancount = 0;
nmb->header.nscount = 0;
nmb->header.arcount = 0;
nmb->question.question_name = *name;
nmb->question.question_type = 0x21;
nmb->question.question_class = 0x1;
p.ip = to_ip;
p.port = NMB_PORT;
p.fd = fd;
p.timestamp = time(NULL);
p.packet_type = NMB_PACKET;
GetTimeOfDay(&tval);
if (!send_packet(&p))
return NULL;
retries--;
while (1) {
struct timeval tval2;
GetTimeOfDay(&tval2);
if (TvalDiff(&tval,&tval2) > retry_time) {
if (!retries)
break;
if (!found && !send_packet(&p))
return NULL;
GetTimeOfDay(&tval);
retries--;
}
if ((p2=receive_nmb_packet(fd,90,nmb->header.name_trn_id))) {
struct nmb_packet *nmb2 = &p2->packet.nmb;
debug_nmb_packet(p2);
if (nmb2->header.opcode != 0 ||
nmb2->header.nm_flags.bcast ||
nmb2->header.rcode ||
!nmb2->header.ancount ||
nmb2->answers->rr_type != 0x21) {
/* XXXX what do we do with this? could be a
redirect, but we'll discard it for the
moment */
free_packet(p2);
continue;
}
ret = parse_node_status(&nmb2->answers->rdata[0], num_names, extra);
free_packet(p2);
return ret;
}
}
return NULL;
}
/****************************************************************************
Find the first type XX name in a node status reply - used for finding
a servers name given its IP. Return the matched name in *name.
**************************************************************************/
BOOL name_status_find(const char *q_name, int q_type, int type, struct in_addr to_ip, fstring name)
{
NODE_STATUS_STRUCT *status = NULL;
struct nmb_name nname;
int count, i;
int sock;
BOOL result = False;
if (lp_disable_netbios()) {
DEBUG(5,("name_status_find(%s#%02x): netbios is disabled\n", q_name, q_type));
return False;
}
DEBUG(10, ("name_status_find: looking up %s#%02x at %s\n", q_name,
q_type, inet_ntoa(to_ip)));
/* Check the cache first. */
if (namecache_status_fetch(q_name, q_type, type, to_ip, name))
return True;
sock = open_socket_in(SOCK_DGRAM, 0, 3, interpret_addr(lp_socket_address()), True);
if (sock == -1)
goto done;
/* W2K PDC's seem not to respond to '*'#0. JRA */
make_nmb_name(&nname, q_name, q_type);
status = node_status_query(sock, &nname, to_ip, &count, NULL);
close(sock);
if (!status)
goto done;
for (i=0;i<count;i++) {
if (status[i].type == type)
break;
}
if (i == count)
goto done;
pull_ascii_nstring(name, sizeof(fstring), status[i].name);
/* Store the result in the cache. */
/* but don't store an entry for 0x1c names here. Here we have
a single host and DOMAIN<0x1c> names should be a list of hosts */
if ( q_type != 0x1c )
namecache_status_store(q_name, q_type, type, to_ip, name);
result = True;
done:
SAFE_FREE(status);
DEBUG(10, ("name_status_find: name %sfound", result ? "" : "not "));
if (result)
DEBUGADD(10, (", name %s ip address is %s", name, inet_ntoa(to_ip)));
DEBUG(10, ("\n"));
return result;
}
/*
comparison function used by sort_ip_list
*/
static int ip_compare(struct in_addr *ip1, struct in_addr *ip2)
{
int max_bits1=0, max_bits2=0;
int num_interfaces = iface_count();
int i;
for (i=0;i<num_interfaces;i++) {
struct in_addr ip;
int bits1, bits2;
ip = *iface_n_bcast(i);
bits1 = matching_quad_bits((uchar *)&ip1->s_addr, (uchar *)&ip.s_addr);
bits2 = matching_quad_bits((uchar *)&ip2->s_addr, (uchar *)&ip.s_addr);
max_bits1 = MAX(bits1, max_bits1);
max_bits2 = MAX(bits2, max_bits2);
}
/* bias towards directly reachable IPs */
if (iface_local(*ip1)) {
max_bits1 += 32;
}
if (iface_local(*ip2)) {
max_bits2 += 32;
}
return max_bits2 - max_bits1;
}
/*******************************************************************
compare 2 ldap IPs by nearness to our interfaces - used in qsort
*******************************************************************/
static int ip_service_compare(struct ip_service *ip1, struct ip_service *ip2)
{
int result;
if ( (result = ip_compare(&ip1->ip, &ip2->ip)) != 0 )
return result;
if ( ip1->port > ip2->port )
return 1;
if ( ip1->port < ip2->port )
return -1;
return 0;
}
/*
sort an IP list so that names that are close to one of our interfaces
are at the top. This prevents the problem where a WINS server returns an IP that
is not reachable from our subnet as the first match
*/
static void sort_ip_list(struct in_addr *iplist, int count)
{
if (count <= 1) {
return;
}
qsort(iplist, count, sizeof(struct in_addr), QSORT_CAST ip_compare);
}
static void sort_ip_list2(struct ip_service *iplist, int count)
{
if (count <= 1) {
return;
}
qsort(iplist, count, sizeof(struct ip_service), QSORT_CAST ip_service_compare);
}
/**********************************************************************
Remove any duplicate address/port pairs in the list
*********************************************************************/
static int remove_duplicate_addrs2( struct ip_service *iplist, int count )
{
int i, j;
DEBUG(10,("remove_duplicate_addrs2: looking for duplicate address/port pairs\n"));
/* one loop to remove duplicates */
for ( i=0; i<count; i++ ) {
if ( is_zero_ip(iplist[i].ip) )
continue;
for ( j=i+1; j<count; j++ ) {
if ( ip_service_equal(iplist[i], iplist[j]) )
zero_ip(&iplist[j].ip);
}
}
/* one loop to clean up any holes we left */
/* first ip should never be a zero_ip() */
for (i = 0; i<count; ) {
if ( is_zero_ip(iplist[i].ip) ) {
if (i != count-1 )
memmove(&iplist[i], &iplist[i+1], (count - i - 1)*sizeof(iplist[i]));
count--;
continue;
}
i++;
}
return count;
}
/****************************************************************************
Do a netbios name query to find someones IP.
Returns an array of IP addresses or NULL if none.
*count will be set to the number of addresses returned.
*timed_out is set if we failed by timing out
****************************************************************************/
struct in_addr *name_query(int fd,const char *name,int name_type,
BOOL bcast,BOOL recurse,
struct in_addr to_ip, int *count, int *flags,
BOOL *timed_out)
{
BOOL found=False;
int i, retries = 3;
int retry_time = bcast?250:2000;
struct timeval tval;
struct packet_struct p;
struct packet_struct *p2;
struct nmb_packet *nmb = &p.packet.nmb;
struct in_addr *ip_list = NULL;
if (lp_disable_netbios()) {
DEBUG(5,("name_query(%s#%02x): netbios is disabled\n", name, name_type));
return NULL;
}
if (timed_out) {
*timed_out = False;
}
memset((char *)&p,'\0',sizeof(p));
(*count) = 0;
(*flags) = 0;
nmb->header.name_trn_id = generate_trn_id();
nmb->header.opcode = 0;
nmb->header.response = False;
nmb->header.nm_flags.bcast = bcast;
nmb->header.nm_flags.recursion_available = False;
nmb->header.nm_flags.recursion_desired = recurse;
nmb->header.nm_flags.trunc = False;
nmb->header.nm_flags.authoritative = False;
nmb->header.rcode = 0;
nmb->header.qdcount = 1;
nmb->header.ancount = 0;
nmb->header.nscount = 0;
nmb->header.arcount = 0;
make_nmb_name(&nmb->question.question_name,name,name_type);
nmb->question.question_type = 0x20;
nmb->question.question_class = 0x1;
p.ip = to_ip;
p.port = NMB_PORT;
p.fd = fd;
p.timestamp = time(NULL);
p.packet_type = NMB_PACKET;
GetTimeOfDay(&tval);
if (!send_packet(&p))
return NULL;
retries--;
while (1) {
struct timeval tval2;
struct in_addr *tmp_ip_list;
GetTimeOfDay(&tval2);
if (TvalDiff(&tval,&tval2) > retry_time) {
if (!retries)
break;
if (!found && !send_packet(&p))
return NULL;
GetTimeOfDay(&tval);
retries--;
}
if ((p2=receive_nmb_packet(fd,90,nmb->header.name_trn_id))) {
struct nmb_packet *nmb2 = &p2->packet.nmb;
debug_nmb_packet(p2);
/* If we get a Negative Name Query Response from a WINS
* server, we should report it and give up.
*/
if( 0 == nmb2->header.opcode /* A query response */
&& !(bcast) /* from a WINS server */
&& nmb2->header.rcode /* Error returned */
) {
if( DEBUGLVL( 3 ) ) {
/* Only executed if DEBUGLEVEL >= 3 */
dbgtext( "Negative name query response, rcode 0x%02x: ", nmb2->header.rcode );
switch( nmb2->header.rcode ) {
case 0x01:
dbgtext( "Request was invalidly formatted.\n" );
break;
case 0x02:
dbgtext( "Problem with NBNS, cannot process name.\n");
break;
case 0x03:
dbgtext( "The name requested does not exist.\n" );
break;
case 0x04:
dbgtext( "Unsupported request error.\n" );
break;
case 0x05:
dbgtext( "Query refused error.\n" );
break;
default:
dbgtext( "Unrecognized error code.\n" );
break;
}
}
free_packet(p2);
return( NULL );
}
if (nmb2->header.opcode != 0 ||
nmb2->header.nm_flags.bcast ||
nmb2->header.rcode ||
!nmb2->header.ancount) {
/*
* XXXX what do we do with this? Could be a
* redirect, but we'll discard it for the
* moment.
*/
free_packet(p2);
continue;
}
tmp_ip_list = SMB_REALLOC_ARRAY( ip_list, struct in_addr,
(*count) + nmb2->answers->rdlength/6 );
if (!tmp_ip_list) {
DEBUG(0,("name_query: Realloc failed.\n"));
SAFE_FREE(ip_list);
}
ip_list = tmp_ip_list;
if (ip_list) {
DEBUG(2,("Got a positive name query response from %s ( ", inet_ntoa(p2->ip)));
for (i=0;i<nmb2->answers->rdlength/6;i++) {
putip((char *)&ip_list[(*count)],&nmb2->answers->rdata[2+i*6]);
DEBUGADD(2,("%s ",inet_ntoa(ip_list[(*count)])));
(*count)++;
}
DEBUGADD(2,(")\n"));
}
found=True;
retries=0;
/* We add the flags back ... */
if (nmb2->header.response)
(*flags) |= NM_FLAGS_RS;
if (nmb2->header.nm_flags.authoritative)
(*flags) |= NM_FLAGS_AA;
if (nmb2->header.nm_flags.trunc)
(*flags) |= NM_FLAGS_TC;
if (nmb2->header.nm_flags.recursion_desired)
(*flags) |= NM_FLAGS_RD;
if (nmb2->header.nm_flags.recursion_available)
(*flags) |= NM_FLAGS_RA;
if (nmb2->header.nm_flags.bcast)
(*flags) |= NM_FLAGS_B;
free_packet(p2);
/*
* If we're doing a unicast lookup we only
* expect one reply. Don't wait the full 2
* seconds if we got one. JRA.
*/
if(!bcast && found)
break;
}
}
/* only set timed_out if we didn't fund what we where looking for*/
if ( !found && timed_out ) {
*timed_out = True;
}
/* sort the ip list so we choose close servers first if possible */
sort_ip_list(ip_list, *count);
return ip_list;
}
/********************************************************
Start parsing the lmhosts file.
*********************************************************/
XFILE *startlmhosts(char *fname)
{
XFILE *fp = x_fopen(fname,O_RDONLY, 0);
if (!fp) {
DEBUG(4,("startlmhosts: Can't open lmhosts file %s. Error was %s\n",
fname, strerror(errno)));
return NULL;
}
return fp;
}
/********************************************************
Parse the next line in the lmhosts file.
*********************************************************/
BOOL getlmhostsent( XFILE *fp, pstring name, int *name_type, struct in_addr *ipaddr)
{
pstring line;
while(!x_feof(fp) && !x_ferror(fp)) {
pstring ip,flags,extra;
const char *ptr;
char *ptr1;
int count = 0;
*name_type = -1;
if (!fgets_slash(line,sizeof(pstring),fp)) {
continue;
}
if (*line == '#') {
continue;
}
pstrcpy(ip,"");
pstrcpy(name,"");
pstrcpy(flags,"");
ptr = line;
if (next_token(&ptr,ip ,NULL,sizeof(ip)))
++count;
if (next_token(&ptr,name ,NULL, sizeof(pstring)))
++count;
if (next_token(&ptr,flags,NULL, sizeof(flags)))
++count;
if (next_token(&ptr,extra,NULL, sizeof(extra)))
++count;
if (count <= 0)
continue;
if (count > 0 && count < 2) {
DEBUG(0,("getlmhostsent: Ill formed hosts line [%s]\n",line));
continue;
}
if (count >= 4) {
DEBUG(0,("getlmhostsent: too many columns in lmhosts file (obsolete syntax)\n"));
continue;
}
DEBUG(4, ("getlmhostsent: lmhost entry: %s %s %s\n", ip, name, flags));
if (strchr_m(flags,'G') || strchr_m(flags,'S')) {
DEBUG(0,("getlmhostsent: group flag in lmhosts ignored (obsolete)\n"));
continue;
}
*ipaddr = *interpret_addr2(ip);
/* Extra feature. If the name ends in '#XX', where XX is a hex number,
then only add that name type. */
if((ptr1 = strchr_m(name, '#')) != NULL) {
char *endptr;
ptr1++;
*name_type = (int)strtol(ptr1, &endptr, 16);
if(!*ptr1 || (endptr == ptr1)) {
DEBUG(0,("getlmhostsent: invalid name %s containing '#'.\n", name));
continue;
}
*(--ptr1) = '\0'; /* Truncate at the '#' */
}
return True;
}
return False;
}
/********************************************************
Finish parsing the lmhosts file.
*********************************************************/
void endlmhosts(XFILE *fp)
{
x_fclose(fp);
}
/********************************************************
convert an array if struct in_addrs to struct ip_service
return False on failure. Port is set to PORT_NONE;
*********************************************************/
static BOOL convert_ip2service( struct ip_service **return_iplist, struct in_addr *ip_list, int count )
{
int i;
if ( count==0 || !ip_list )
return False;
/* copy the ip address; port will be PORT_NONE */
if ( (*return_iplist = SMB_MALLOC_ARRAY(struct ip_service, count)) == NULL ) {
DEBUG(0,("convert_ip2service: malloc failed for %d enetries!\n", count ));
return False;
}
for ( i=0; i<count; i++ ) {
(*return_iplist)[i].ip = ip_list[i];
(*return_iplist)[i].port = PORT_NONE;
}
return True;
}
/********************************************************
Resolve via "bcast" method.
*********************************************************/
BOOL name_resolve_bcast(const char *name, int name_type,
struct ip_service **return_iplist, int *return_count)
{
int sock, i;
int num_interfaces = iface_count();
struct in_addr *ip_list;
BOOL ret;
if (lp_disable_netbios()) {
DEBUG(5,("name_resolve_bcast(%s#%02x): netbios is disabled\n", name, name_type));
return False;
}
*return_iplist = NULL;
*return_count = 0;
/*
* "bcast" means do a broadcast lookup on all the local interfaces.
*/
DEBUG(3,("name_resolve_bcast: Attempting broadcast lookup for name %s<0x%x>\n", name, name_type));
sock = open_socket_in( SOCK_DGRAM, 0, 3,
interpret_addr(lp_socket_address()), True );
if (sock == -1) return False;
set_socket_options(sock,"SO_BROADCAST");
/*
* Lookup the name on all the interfaces, return on
* the first successful match.
*/
for( i = num_interfaces-1; i >= 0; i--) {
struct in_addr sendto_ip;
int flags;
/* Done this way to fix compiler error on IRIX 5.x */
sendto_ip = *iface_n_bcast(i);
ip_list = name_query(sock, name, name_type, True,
True, sendto_ip, return_count, &flags, NULL);
if( ip_list )
goto success;
}
/* failed - no response */
close(sock);
return False;
success:
ret = True;
if ( !convert_ip2service(return_iplist, ip_list, *return_count) )
ret = False;
SAFE_FREE( ip_list );
close(sock);
return ret;
}
/********************************************************
Resolve via "wins" method.
*********************************************************/
BOOL resolve_wins(const char *name, int name_type,
struct ip_service **return_iplist, int *return_count)
{
int sock, t, i;
char **wins_tags;
struct in_addr src_ip, *ip_list = NULL;
BOOL ret;
if (lp_disable_netbios()) {
DEBUG(5,("resolve_wins(%s#%02x): netbios is disabled\n", name, name_type));
return False;
}
*return_iplist = NULL;
*return_count = 0;
DEBUG(3,("resolve_wins: Attempting wins lookup for name %s<0x%x>\n", name, name_type));
if (wins_srv_count() < 1) {
DEBUG(3,("resolve_wins: WINS server resolution selected and no WINS servers listed.\n"));
return False;
}
/* we try a lookup on each of the WINS tags in turn */
wins_tags = wins_srv_tags();
if (!wins_tags) {
/* huh? no tags?? give up in disgust */
return False;
}
/* the address we will be sending from */
src_ip = *interpret_addr2(lp_socket_address());
/* in the worst case we will try every wins server with every
tag! */
for (t=0; wins_tags && wins_tags[t]; t++) {
int srv_count = wins_srv_count_tag(wins_tags[t]);
for (i=0; i<srv_count; i++) {
struct in_addr wins_ip;
int flags;
BOOL timed_out;
wins_ip = wins_srv_ip_tag(wins_tags[t], src_ip);
if (global_in_nmbd && ismyip(wins_ip)) {
/* yikes! we'll loop forever */
continue;
}
/* skip any that have been unresponsive lately */
if (wins_srv_is_dead(wins_ip, src_ip)) {
continue;
}
DEBUG(3,("resolve_wins: using WINS server %s and tag '%s'\n", inet_ntoa(wins_ip), wins_tags[t]));
sock = open_socket_in(SOCK_DGRAM, 0, 3, src_ip.s_addr, True);
if (sock == -1) {
continue;
}
ip_list = name_query(sock,name,name_type, False,
True, wins_ip, return_count, &flags,
&timed_out);
/* exit loop if we got a list of addresses */
if ( ip_list )
goto success;
close(sock);
if (timed_out) {
/* Timed out wating for WINS server to respond. Mark it dead. */
wins_srv_died(wins_ip, src_ip);
} else {
/* The name definately isn't in this
group of WINS servers. goto the next group */
break;
}
}
}
wins_srv_tags_free(wins_tags);
return False;
success:
ret = True;
if ( !convert_ip2service( return_iplist, ip_list, *return_count ) )
ret = False;
SAFE_FREE( ip_list );
wins_srv_tags_free(wins_tags);
close(sock);
return ret;
}
/********************************************************
Resolve via "lmhosts" method.
*********************************************************/
static BOOL resolve_lmhosts(const char *name, int name_type,
struct ip_service **return_iplist, int *return_count)
{
/*
* "lmhosts" means parse the local lmhosts file.
*/
XFILE *fp;
pstring lmhost_name;
int name_type2;
struct in_addr return_ip;
BOOL result = False;
*return_iplist = NULL;
*return_count = 0;
DEBUG(3,("resolve_lmhosts: Attempting lmhosts lookup for name %s<0x%x>\n", name, name_type));
fp = startlmhosts(dyn_LMHOSTSFILE);
if ( fp == NULL )
return False;
while (getlmhostsent(fp, lmhost_name, &name_type2, &return_ip))
{
if (!strequal(name, lmhost_name))
continue;
if ((name_type2 != -1) && (name_type != name_type2))
continue;
*return_iplist = SMB_REALLOC_ARRAY((*return_iplist), struct ip_service,
(*return_count)+1);
if ((*return_iplist) == NULL) {
endlmhosts(fp);
DEBUG(3,("resolve_lmhosts: malloc fail !\n"));
return False;
}
(*return_iplist)[*return_count].ip = return_ip;
(*return_iplist)[*return_count].port = PORT_NONE;
*return_count += 1;
/* we found something */
result = True;
/* Multiple names only for DC lookup */
if (name_type != 0x1c)
break;
}
endlmhosts(fp);
return result;
}
/********************************************************
Resolve via "hosts" method.
*********************************************************/
static BOOL resolve_hosts(const char *name, int name_type,
struct ip_service **return_iplist, int *return_count)
{
/*
* "host" means do a localhost, or dns lookup.
*/
struct hostent *hp;
if ( name_type != 0x20 && name_type != 0x0) {
DEBUG(5, ("resolve_hosts: not appropriate for name type <0x%x>\n", name_type));
return False;
}
*return_iplist = NULL;
*return_count = 0;
DEBUG(3,("resolve_hosts: Attempting host lookup for name %s<0x%x>\n", name, name_type));
if (((hp = sys_gethostbyname(name)) != NULL) && (hp->h_addr != NULL)) {
struct in_addr return_ip;
putip((char *)&return_ip,(char *)hp->h_addr);
*return_iplist = SMB_MALLOC_P(struct ip_service);
if(*return_iplist == NULL) {
DEBUG(3,("resolve_hosts: malloc fail !\n"));
return False;
}
(*return_iplist)->ip = return_ip;
(*return_iplist)->port = PORT_NONE;
*return_count = 1;
return True;
}
return False;
}
/********************************************************
Resolve via "ADS" method.
*********************************************************/
static BOOL resolve_ads(const char *name, int name_type,
struct ip_service **return_iplist, int *return_count)
{
#ifdef HAVE_ADS
if ( name_type == 0x1c ) {
int count, i = 0;
char *list = NULL;
const char *ptr;
pstring tok;
/* try to lookup the _ldap._tcp.<domain> if we are using ADS */
if ( lp_security() != SEC_ADS )
return False;
DEBUG(5,("resolve_hosts: Attempting to resolve DC's for %s using DNS\n",
name));
if (ldap_domain2hostlist(name, &list) != LDAP_SUCCESS)
return False;
count = count_chars(list, ' ') + 1;
if ( (*return_iplist = SMB_MALLOC_ARRAY(struct ip_service, count)) == NULL ) {
DEBUG(0,("resolve_hosts: malloc failed for %d entries\n", count ));
return False;
}
ptr = list;
while (next_token(&ptr, tok, " ", sizeof(tok))) {
unsigned port = LDAP_PORT;
char *p = strchr(tok, ':');
if (p) {
*p = 0;
port = atoi(p+1);
}
(*return_iplist)[i].ip = *interpret_addr2(tok);
(*return_iplist)[i].port = port;
/* make sure it is a valid IP. I considered checking the negative
connection cache, but this is the wrong place for it. Maybe only
as a hac. After think about it, if all of the IP addresses retuend
from DNS are dead, what hope does a netbios name lookup have?
The standard reason for falling back to netbios lookups is that
our DNS server doesn't know anything about the DC's -- jerry */
if ( is_zero_ip((*return_iplist)[i].ip) )
continue;
i++;
}
SAFE_FREE(list);
*return_count = i;
return True;
} else
#endif /* HAVE_ADS */
{
return False;
}
}
/*******************************************************************
Internal interface to resolve a name into an IP address.
Use this function if the string is either an IP address, DNS
or host name or NetBIOS name. This uses the name switch in the
smb.conf to determine the order of name resolution.
Added support for ip addr/port to support ADS ldap servers.
the only place we currently care about the port is in the
resolve_hosts() when looking up DC's via SRV RR entries in DNS
**********************************************************************/
BOOL internal_resolve_name(const char *name, int name_type,
struct ip_service **return_iplist,
int *return_count, const char *resolve_order)
{
pstring name_resolve_list;
fstring tok;
const char *ptr;
BOOL allones = (strcmp(name,"255.255.255.255") == 0);
BOOL allzeros = (strcmp(name,"0.0.0.0") == 0);
BOOL is_address = is_ipaddress(name);
BOOL result = False;
int i;
*return_iplist = NULL;
*return_count = 0;
DEBUG(10, ("internal_resolve_name: looking up %s#%x\n", name, name_type));
if (allzeros || allones || is_address) {
if ( (*return_iplist = SMB_MALLOC_P(struct ip_service)) == NULL ) {
DEBUG(0,("internal_resolve_name: malloc fail !\n"));
return False;
}
if(is_address) {
/* ignore the port here */
(*return_iplist)->port = PORT_NONE;
/* if it's in the form of an IP address then get the lib to interpret it */
if (((*return_iplist)->ip.s_addr = inet_addr(name)) == 0xFFFFFFFF ){
DEBUG(1,("internal_resolve_name: inet_addr failed on %s\n", name));
return False;
}
} else {
(*return_iplist)->ip.s_addr = allones ? 0xFFFFFFFF : 0;
}
*return_count = 1;
return True;
}
/* Check name cache */
if (namecache_fetch(name, name_type, return_iplist, return_count)) {
/* This could be a negative response */
return (*return_count > 0);
}
/* set the name resolution order */
if ( strcmp( resolve_order, "NULL") == 0 ) {
DEBUG(8,("internal_resolve_name: all lookups disabled\n"));
return False;
}
if ( !resolve_order ) {
pstrcpy(name_resolve_list, lp_name_resolve_order());
} else {
pstrcpy(name_resolve_list, resolve_order);
if ( !name_resolve_list[0] ) {
ptr = "host";
} else {
ptr = name_resolve_list;
}
/* iterate through the name resolution backends */
while (next_token(&ptr, tok, LIST_SEP, sizeof(tok))) {
if((strequal(tok, "host") || strequal(tok, "hosts"))) {
if (resolve_hosts(name, name_type, return_iplist, return_count)) {
result = True;
goto done;
}
} else if(strequal( tok, "ads")) {
/* deal with 0x1c names here. This will result in a
SRV record lookup for _ldap._tcp.<domain> if we
are using 'security = ads' */
if (resolve_ads(name, name_type, return_iplist, return_count)) {
result = True;
goto done;
}
} else if(strequal( tok, "lmhosts")) {
if (resolve_lmhosts(name, name_type, return_iplist, return_count)) {
result = True;
goto done;
}
} else if(strequal( tok, "wins")) {
/* don't resolve 1D via WINS */
if (name_type != 0x1D && resolve_wins(name, name_type, return_iplist, return_count)) {
result = True;
goto done;
}
} else if(strequal( tok, "bcast")) {
if (name_resolve_bcast(name, name_type, return_iplist, return_count)) {
result = True;
goto done;
}
} else {
DEBUG(0,("resolve_name: unknown name switch type %s\n", tok));
}
}
/* All of the resolve_* functions above have returned false. */
SAFE_FREE(*return_iplist);
*return_count = 0;
return False;
done:
/* Remove duplicate entries. Some queries, notably #1c (domain
controllers) return the PDC in iplist[0] and then all domain
controllers including the PDC in iplist[1..n]. Iterating over
the iplist when the PDC is down will cause two sets of timeouts. */
if ( *return_count ) {
*return_count = remove_duplicate_addrs2( *return_iplist, *return_count );
}
/* Save in name cache */
if ( DEBUGLEVEL >= 100 ) {
for (i = 0; i < *return_count && DEBUGLEVEL == 100; i++)
DEBUG(100, ("Storing name %s of type %d (%s:%d)\n", name,
name_type, inet_ntoa((*return_iplist)[i].ip), (*return_iplist)[i].port));
}
namecache_store(name, name_type, *return_count, *return_iplist);
/* Display some debugging info */
if ( DEBUGLEVEL >= 10 ) {
DEBUG(10, ("internal_resolve_name: returning %d addresses: ", *return_count));
for (i = 0; i < *return_count; i++) {
DEBUGADD(10, ("%s:%d ", inet_ntoa((*return_iplist)[i].ip), (*return_iplist)[i].port));
}
DEBUG(10, ("\n"));
}
}
return result;
}
/********************************************************
Internal interface to resolve a name into one IP address.
Use this function if the string is either an IP address, DNS
or host name or NetBIOS name. This uses the name switch in the
smb.conf to determine the order of name resolution.
*********************************************************/
BOOL resolve_name(const char *name, struct in_addr *return_ip, int name_type)
{
struct ip_service *ip_list = NULL;
int count = 0;
if (is_ipaddress(name)) {
*return_ip = *interpret_addr2(name);
return True;
}
if (internal_resolve_name(name, name_type, &ip_list, &count, lp_name_resolve_order())) {
int i;
/* only return valid addresses for TCP connections */
for (i=0; i<count; i++) {
char *ip_str = inet_ntoa(ip_list[i].ip);
if (ip_str &&
strcmp(ip_str, "255.255.255.255") != 0 &&
strcmp(ip_str, "0.0.0.0") != 0)
{
*return_ip = ip_list[i].ip;
SAFE_FREE(ip_list);
return True;
}
}
}
SAFE_FREE(ip_list);
return False;
}
/********************************************************
Find the IP address of the master browser or DMB for a workgroup.
*********************************************************/
BOOL find_master_ip(const char *group, struct in_addr *master_ip)
{
struct ip_service *ip_list = NULL;
int count = 0;
if (lp_disable_netbios()) {
DEBUG(5,("find_master_ip(%s): netbios is disabled\n", group));
return False;
}
if (internal_resolve_name(group, 0x1D, &ip_list, &count, lp_name_resolve_order())) {
*master_ip = ip_list[0].ip;
SAFE_FREE(ip_list);
return True;
}
if(internal_resolve_name(group, 0x1B, &ip_list, &count, lp_name_resolve_order())) {
*master_ip = ip_list[0].ip;
SAFE_FREE(ip_list);
return True;
}
SAFE_FREE(ip_list);
return False;
}
/********************************************************
Get the IP address list of the primary domain controller
for a domain.
*********************************************************/
BOOL get_pdc_ip(const char *domain, struct in_addr *ip)
{
struct ip_service *ip_list;
int count;
/* Look up #1B name */
if (!internal_resolve_name(domain, 0x1b, &ip_list, &count, lp_name_resolve_order())) {
return False;
}
/* if we get more than 1 IP back we have to assume it is a
multi-homed PDC and not a mess up */
if ( count > 1 ) {
DEBUG(6,("get_pdc_ip: PDC has %d IP addresses!\n", count));
sort_ip_list2( ip_list, count );
}
*ip = ip_list[0].ip;
SAFE_FREE(ip_list);
return True;
}
/********************************************************
Get the IP address list of the domain controllers for
a domain.
*********************************************************/
static BOOL get_dc_list(const char *domain, struct ip_service **ip_list,
int *count, BOOL ads_only, int *ordered)
{
fstring resolve_order;
char *saf_servername;
pstring pserver;
const char *p;
char *port_str;
int port;
fstring name;
int num_addresses = 0;
int local_count, i, j;
struct ip_service *return_iplist = NULL;
struct ip_service *auto_ip_list = NULL;
BOOL done_auto_lookup = False;
int auto_count = 0;
/* if we are restricted to solely using DNS for looking
up a domain controller, make sure that host lookups
are enabled for the 'name resolve order'. If host lookups
are disabled and ads_only is True, then set the string to
NULL. */
fstrcpy( resolve_order, lp_name_resolve_order() );
strlower_m( resolve_order );
if ( ads_only ) {
if ( strstr( resolve_order, "host" ) )
fstrcpy( resolve_order, "ads" );
else
fstrcpy( resolve_order, "NULL" );
}
*ordered = False;
/* fetch the server we have affinity for. Add the
'password server' list to a search for our domain controllers */
saf_servername = saf_fetch( domain );
if ( strequal(domain, lp_workgroup()) || strequal(domain, lp_realm()) ) {
pstr_sprintf( pserver, "%s, %s",
saf_servername ? saf_servername : "",
lp_passwordserver() );
} else {
pstr_sprintf( pserver, "%s, *",
saf_servername ? saf_servername : "" );
}
SAFE_FREE( saf_servername );
/* if we are starting from scratch, just lookup DOMAIN<0x1c> */
if ( !*pserver ) {
DEBUG(10,("get_dc_list: no preferred domain controllers.\n"));
return internal_resolve_name(domain, 0x1C, ip_list, count, resolve_order);
}
DEBUG(3,("get_dc_list: preferred server list: \"%s\"\n", pserver ));
/*
* if '*' appears in the "password server" list then add
* an auto lookup to the list of manually configured
* DC's. If any DC is listed by name, then the list should be
* considered to be ordered
*/
p = pserver;
while (next_token(&p,name,LIST_SEP,sizeof(name))) {
if (strequal(name, "*")) {
if ( internal_resolve_name(domain, 0x1C, &auto_ip_list, &auto_count, resolve_order) )
num_addresses += auto_count;
done_auto_lookup = True;
DEBUG(8,("Adding %d DC's from auto lookup\n", auto_count));
} else {
num_addresses++;
}
}
/* if we have no addresses and haven't done the auto lookup, then
just return the list of DC's. Or maybe we just failed. */
if ( (num_addresses == 0) ) {
if ( !done_auto_lookup ) {
return internal_resolve_name(domain, 0x1C, ip_list, count, resolve_order);
} else {
DEBUG(4,("get_dc_list: no servers found\n"));
return False;
}
}
if ( (return_iplist = SMB_MALLOC_ARRAY(struct ip_service, num_addresses)) == NULL ) {
DEBUG(3,("get_dc_list: malloc fail !\n"));
return False;
}
p = pserver;
local_count = 0;
/* fill in the return list now with real IP's */
while ( (local_count<num_addresses) && next_token(&p,name,LIST_SEP,sizeof(name)) ) {
struct in_addr name_ip;
/* copy any addersses from the auto lookup */
if ( strequal(name, "*") ) {
for ( j=0; j<auto_count; j++ ) {
/* Check for and don't copy any known bad DC IP's. */
if(!NT_STATUS_IS_OK(check_negative_conn_cache(domain,
inet_ntoa(auto_ip_list[j].ip)))) {
DEBUG(5,("get_dc_list: negative entry %s removed from DC list\n",
inet_ntoa(auto_ip_list[j].ip) ));
continue;
}
return_iplist[local_count].ip = auto_ip_list[j].ip;
return_iplist[local_count].port = auto_ip_list[j].port;
local_count++;
}
continue;
}
/* added support for address:port syntax for ads (not that I think
anyone will ever run the LDAP server in an AD domain on something
other than port 389 */
port = (lp_security() == SEC_ADS) ? LDAP_PORT : PORT_NONE;
if ( (port_str=strchr(name, ':')) != NULL ) {
*port_str = '\0';
port_str++;
port = atoi( port_str );
}
/* explicit lookup; resolve_name() will handle names & IP addresses */
if ( resolve_name( name, &name_ip, 0x20 ) ) {
/* Check for and don't copy any known bad DC IP's. */
if( !NT_STATUS_IS_OK(check_negative_conn_cache(domain, inet_ntoa(name_ip))) ) {
DEBUG(5,("get_dc_list: negative entry %s removed from DC list\n",name ));
continue;
}
return_iplist[local_count].ip = name_ip;
return_iplist[local_count].port = port;
local_count++;
*ordered = True;
}
}
SAFE_FREE(auto_ip_list);
/* need to remove duplicates in the list if we have any
explicit password servers */
if ( local_count ) {
local_count = remove_duplicate_addrs2( return_iplist, local_count );
}
if ( DEBUGLEVEL >= 4 ) {
DEBUG(4,("get_dc_list: returning %d ip addresses in an %sordered list\n", local_count,
*ordered ? "":"un"));
DEBUG(4,("get_dc_list: "));
for ( i=0; i<local_count; i++ )
DEBUGADD(4,("%s:%d ", inet_ntoa(return_iplist[i].ip), return_iplist[i].port ));
DEBUGADD(4,("\n"));
}
*ip_list = return_iplist;
*count = local_count;
return (*count != 0);
}
/*********************************************************************
Small wrapper function to get the DC list and sort it if neccessary.
*********************************************************************/
BOOL get_sorted_dc_list( const char *domain, struct ip_service **ip_list, int *count, BOOL ads_only )
{
BOOL ordered;
DEBUG(8,("get_sorted_dc_list: attempting lookup using [%s]\n",
(ads_only ? "ads" : lp_name_resolve_order())));
if ( !get_dc_list(domain, ip_list, count, ads_only, &ordered) ) {
return False;
}
/* only sort if we don't already have an ordered list */
if ( !ordered ) {
sort_ip_list2( *ip_list, *count );
}
return True;
}
|