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
|
/*
Unix SMB/Netbios implementation.
SMB client library implementation
Copyright (C) Andrew Tridgell 1998
Copyright (C) Richard Sharpe 2000, 2002
Copyright (C) John Terpstra 2000
Copyright (C) Tom Jansen (Ninja ISD) 2002
Copyright (C) Derrell Lipman 2003-2008
Copyright (C) Jeremy Allison 2007, 2008
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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "libsmbclient.h"
#include "libsmb_internal.h"
/*
* Is the logging working / configfile read ?
*/
static int SMBC_initialized = 0;
/*
* Get a new empty handle to fill in with your own info
*/
SMBCCTX *
smbc_new_context(void)
{
SMBCCTX *context;
/*
* All newly added context fields should be placed in SMBC_internal_data,
* not directly in SMBCCTX.
*/
# undef OLD
# define OLD(field) context->field
# undef NEW
# define NEW(field) context->internal->field
context = SMB_MALLOC_P(SMBCCTX);
if (!context) {
errno = ENOMEM;
return NULL;
}
ZERO_STRUCTP(context);
context->internal = SMB_MALLOC_P(struct SMBC_internal_data);
if (!context->internal) {
SAFE_FREE(context);
errno = ENOMEM;
return NULL;
}
/* Initialize the context and establish reasonable defaults */
ZERO_STRUCTP(context->internal);
OLD(config.debug) = 0;
OLD(config.timeout) = 20000; /* 20 seconds */
NEW(full_time_names) = False;
NEW(share_mode) = SMBC_SHAREMODE_DENY_NONE;
NEW(smb_encryption_level) = 0;
NEW(browse_max_lmb_count) = 3; /* # LMBs to query */
NEW(urlencode_readdir_entries) = False;
NEW(one_share_per_server) = False;
OLD(server.get_auth_data_fn) = SMBC_get_auth_data;
OLD(server.check_server_fn) = SMBC_check_server;
OLD(server.remove_unused_server_fn) = SMBC_remove_unused_server;
OLD(cache.server_cache_data) = NULL;
OLD(cache.add_cached_server_fn) = SMBC_add_cached_server;
OLD(cache.get_cached_server_fn) = SMBC_get_cached_server;
OLD(cache.remove_cached_server_fn) = SMBC_remove_cached_server;
OLD(cache.purge_cached_servers_fn) = SMBC_purge_cached_servers;
OLD(posix_emu.open_fn) = SMBC_open_ctx;
OLD(posix_emu.creat_fn) = SMBC_creat_ctx;
OLD(posix_emu.read_fn) = SMBC_read_ctx;
OLD(posix_emu.write_fn) = SMBC_write_ctx;
OLD(posix_emu.close_fn) = SMBC_close_ctx;
OLD(posix_emu.unlink_fn) = SMBC_unlink_ctx;
OLD(posix_emu.rename_fn) = SMBC_rename_ctx;
OLD(posix_emu.lseek_fn) = SMBC_lseek_ctx;
NEW(posix_emu.ftruncate_fn) = SMBC_ftruncate_ctx;
OLD(posix_emu.stat_fn) = SMBC_stat_ctx;
OLD(posix_emu.fstat_fn) = SMBC_fstat_ctx;
OLD(posix_emu.opendir_fn) = SMBC_opendir_ctx;
OLD(posix_emu.closedir_fn) = SMBC_closedir_ctx;
OLD(posix_emu.readdir_fn) = SMBC_readdir_ctx;
OLD(posix_emu.getdents_fn) = SMBC_getdents_ctx;
OLD(posix_emu.mkdir_fn) = SMBC_mkdir_ctx;
OLD(posix_emu.rmdir_fn) = SMBC_rmdir_ctx;
OLD(posix_emu.telldir_fn) = SMBC_telldir_ctx;
OLD(posix_emu.lseekdir_fn) = SMBC_lseekdir_ctx;
OLD(posix_emu.fstatdir_fn) = SMBC_fstatdir_ctx;
OLD(posix_emu.chmod_fn) = SMBC_chmod_ctx;
OLD(posix_emu.utimes_fn) = SMBC_utimes_ctx;
OLD(posix_emu.setxattr_fn) = SMBC_setxattr_ctx;
OLD(posix_emu.getxattr_fn) = SMBC_getxattr_ctx;
OLD(posix_emu.removexattr_fn) = SMBC_removexattr_ctx;
OLD(posix_emu.listxattr_fn) = SMBC_listxattr_ctx;
OLD(printing.open_print_job_fn) = SMBC_open_print_job_ctx;
OLD(printing.print_file_fn) = SMBC_print_file_ctx;
OLD(printing.list_print_jobs_fn) = SMBC_list_print_jobs_ctx;
OLD(printing.unlink_print_job_fn) = SMBC_unlink_print_job_ctx;
return context;
#undef OLD
#undef NEW
}
/*
* Free a context
*
* Returns 0 on success. Otherwise returns 1, the SMBCCTX is _not_ freed
* and thus you'll be leaking memory if not handled properly.
*
*/
int
smbc_free_context(SMBCCTX *context,
int shutdown_ctx)
{
if (!context) {
errno = EBADF;
return 1;
}
if (shutdown_ctx) {
SMBCFILE * f;
DEBUG(1,("Performing aggressive shutdown.\n"));
f = context->internal->files;
while (f) {
(context->posix_emu.close_fn)(context, f);
f = f->next;
}
context->internal->files = NULL;
/* First try to remove the servers the nice way. */
if (context->cache.purge_cached_servers_fn(context)) {
SMBCSRV * s;
SMBCSRV * next;
DEBUG(1, ("Could not purge all servers, "
"Nice way shutdown failed.\n"));
s = context->internal->servers;
while (s) {
DEBUG(1, ("Forced shutdown: %p (fd=%d)\n",
s, s->cli->fd));
cli_shutdown(s->cli);
(context->cache.remove_cached_server_fn)(context,
s);
next = s->next;
DLIST_REMOVE(context->internal->servers, s);
SAFE_FREE(s);
s = next;
}
context->internal->servers = NULL;
}
}
else {
/* This is the polite way */
if ((context->cache.purge_cached_servers_fn)(context)) {
DEBUG(1, ("Could not purge all servers, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->servers) {
DEBUG(1, ("Active servers in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
if (context->internal->files) {
DEBUG(1, ("Active files in context, "
"free_context failed.\n"));
errno = EBUSY;
return 1;
}
}
/* Things we have to clean up */
SAFE_FREE(context->config.workgroup);
SAFE_FREE(context->config.netbios_name);
SAFE_FREE(context->config.user);
DEBUG(3, ("Context %p successfully freed\n", context));
SAFE_FREE(context);
return 0;
}
/*
* Each time the context structure is changed, we have binary backward
* compatibility issues. Instead of modifying the public portions of the
* context structure to add new options, instead, we put them in the internal
* portion of the context structure and provide a set function for these new
* options.
*/
void
smbc_option_set(SMBCCTX *context,
char *option_name,
... /* option_value */)
{
va_list ap;
union {
int i;
bool b;
smbc_get_auth_data_with_context_fn auth_fn;
void *v;
const char *s;
} option_value;
va_start(ap, option_name);
if (strcmp(option_name, "debug_to_stderr") == 0) {
/*
* Log to standard error instead of standard output.
*/
option_value.b = (bool) va_arg(ap, int);
context->internal->debug_stderr = option_value.b;
} else if (strcmp(option_name, "full_time_names") == 0) {
/*
* Use new-style time attribute names, e.g. WRITE_TIME rather
* than the old-style names such as M_TIME. This allows also
* setting/getting CREATE_TIME which was previously
* unimplemented. (Note that the old C_TIME was supposed to
* be CHANGE_TIME but was confused and sometimes referred to
* CREATE_TIME.)
*/
option_value.b = (bool) va_arg(ap, int);
context->internal->full_time_names = option_value.b;
} else if (strcmp(option_name, "open_share_mode") == 0) {
/*
* The share mode to use for files opened with
* SMBC_open_ctx(). The default is SMBC_SHAREMODE_DENY_NONE.
*/
option_value.i = va_arg(ap, int);
context->internal->share_mode = (smbc_share_mode) option_value.i;
} else if (strcmp(option_name, "user_data") == 0) {
/*
* Save a user data handle which may be retrieved by the user
* with smbc_option_get()
*/
option_value.v = va_arg(ap, void *);
context->internal->user_data = option_value.v;
} else if (strcmp(option_name, "smb_encrypt_level") == 0) {
/*
* Save an encoded value for encryption level.
* 0 = off, 1 = attempt, 2 = required.
*/
option_value.s = va_arg(ap, const char *);
if (strcmp(option_value.s, "none") == 0) {
context->internal->smb_encryption_level = 0;
} else if (strcmp(option_value.s, "request") == 0) {
context->internal->smb_encryption_level = 1;
} else if (strcmp(option_value.s, "require") == 0) {
context->internal->smb_encryption_level = 2;
}
} else if (strcmp(option_name, "browse_max_lmb_count") == 0) {
/*
* From how many local master browsers should the list of
* workgroups be retrieved? It can take up to 12 minutes or
* longer after a server becomes a local master browser, for
* it to have the entire browse list (the list of
* workgroups/domains) from an entire network. Since a client
* never knows which local master browser will be found first,
* the one which is found first and used to retrieve a browse
* list may have an incomplete or empty browse list. By
* requesting the browse list from multiple local master
* browsers, a more complete list can be generated. For small
* networks (few workgroups), it is recommended that this
* value be set to 0, causing the browse lists from all found
* local master browsers to be retrieved and merged. For
* networks with many workgroups, a suitable value for this
* variable is probably somewhere around 3. (Default: 3).
*/
option_value.i = va_arg(ap, int);
context->internal->browse_max_lmb_count = option_value.i;
} else if (strcmp(option_name, "urlencode_readdir_entries") == 0) {
/*
* There is a difference in the desired return strings from
* smbc_readdir() depending upon whether the filenames are to
* be displayed to the user, or whether they are to be
* appended to the path name passed to smbc_opendir() to call
* a further smbc_ function (e.g. open the file with
* smbc_open()). In the former case, the filename should be
* in "human readable" form. In the latter case, the smbc_
* functions expect a URL which must be url-encoded. Those
* functions decode the URL. If, for example, smbc_readdir()
* returned a file name of "abc%20def.txt", passing a path
* with this file name attached to smbc_open() would cause
* smbc_open to attempt to open the file "abc def.txt" since
* the %20 is decoded into a space.
*
* Set this option to True if the names returned by
* smbc_readdir() should be url-encoded such that they can be
* passed back to another smbc_ call. Set it to False if the
* names returned by smbc_readdir() are to be presented to the
* user.
*
* For backwards compatibility, this option defaults to False.
*/
option_value.b = (bool) va_arg(ap, int);
context->internal->urlencode_readdir_entries = option_value.b;
} else if (strcmp(option_name, "one_share_per_server") == 0) {
/*
* Some Windows versions appear to have a limit to the number
* of concurrent SESSIONs and/or TREE CONNECTions. In
* one-shot programs (i.e. the program runs and then quickly
* ends, thereby shutting down all connections), it is
* probably reasonable to establish a new connection for each
* share. In long-running applications, the limitation can be
* avoided by using only a single connection to each server,
* and issuing a new TREE CONNECT when the share is accessed.
*/
option_value.b = (bool) va_arg(ap, int);
context->options.one_share_per_server = option_value.b;
} else if (strcmp(option_name, "use_kerberos") == 0) {
option_value.b = (bool) va_arg(ap, int);
if (option_value.b) {
context->flags.bits |= SMB_CTX_FLAG_USE_KERBEROS;
} else {
context->flags.bits &= ~SMB_CTX_FLAG_USE_KERBEROS;
}
} else if (strcmp(option_name, "fallback_after_kerberos") == 0) {
option_value.b = (bool) va_arg(ap, int);
if (option_value.b) {
context->flags.bits |= SMB_CTX_FLAG_FALLBACK_AFTER_KERBEROS;
} else {
context->flags.bits &= ~SMB_CTX_FLAG_FALLBACK_AFTER_KERBEROS;
}
} else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
option_value.b = (bool) va_arg(ap, int);
if (option_value.b) {
context->flags.bits |= SMBCCTX_FLAG_NO_AUTO_ANONYMOUS_LOGON;
} else {
context->flags.bits &= ~SMBCCTX_FLAG_NO_AUTO_ANONYMOUS_LOGON;
}
}
va_end(ap);
}
/*
* Retrieve the current value of an option
*/
void *
smbc_option_get(SMBCCTX *context,
char *option_name)
{
int bits;
if (strcmp(option_name, "debug_stderr") == 0) {
/*
* Log to standard error instead of standard output.
*/
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *) (intptr_t) context->internal->debug_stderr;
#else
return (void *) context->internal->debug_stderr;
#endif
} else if (strcmp(option_name, "full_time_names") == 0) {
/*
* Use new-style time attribute names, e.g. WRITE_TIME rather
* than the old-style names such as M_TIME. This allows also
* setting/getting CREATE_TIME which was previously
* unimplemented. (Note that the old C_TIME was supposed to
* be CHANGE_TIME but was confused and sometimes referred to
* CREATE_TIME.)
*/
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *) (intptr_t) context->internal->full_time_names;
#else
return (void *) context->internal->full_time_names;
#endif
} else if (strcmp(option_name, "user_data") == 0) {
/*
* Return the user data handle which was saved by the user
* with smbc_option_set()
*/
return context->internal->user_data;
} else if (strcmp(option_name, "smb_encrypt_level") == 0) {
/*
* Return the current smb encrypt negotiate option as a string.
*/
switch (context->internal->smb_encryption_level) {
case 0:
return (void *) "none";
case 1:
return (void *) "request";
case 2:
return (void *) "require";
}
} else if (strcmp(option_name, "smb_encrypt_on") == 0) {
/*
* Return the current smb encrypt status option as a bool.
* false = off, true = on. We don't know what server is
* being requested, so we only return true if all servers
* are using an encrypted connection.
*/
SMBCSRV *s;
unsigned int num_servers = 0;
for (s = context->internal->servers; s; s = s->next) {
num_servers++;
if (s->cli->trans_enc_state == NULL) {
return (void *)false;
}
}
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *) (intptr_t) (bool) (num_servers > 0);
#else
return (void *) (bool) (num_servers > 0);
#endif
} else if (strcmp(option_name, "browse_max_lmb_count") == 0) {
/*
* From how many local master browsers should the list of
* workgroups be retrieved? It can take up to 12 minutes or
* longer after a server becomes a local master browser, for
* it to have the entire browse list (the list of
* workgroups/domains) from an entire network. Since a client
* never knows which local master browser will be found first,
* the one which is found first and used to retrieve a browse
* list may have an incomplete or empty browse list. By
* requesting the browse list from multiple local master
* browsers, a more complete list can be generated. For small
* networks (few workgroups), it is recommended that this
* value be set to 0, causing the browse lists from all found
* local master browsers to be retrieved and merged. For
* networks with many workgroups, a suitable value for this
* variable is probably somewhere around 3. (Default: 3).
*/
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *) (intptr_t) context->internal->browse_max_lmb_count;
#else
return (void *) context->internal->browse_max_lmb_count;
#endif
} else if (strcmp(option_name, "urlencode_readdir_entries") == 0) {
/*
* There is a difference in the desired return strings from
* smbc_readdir() depending upon whether the filenames are to
* be displayed to the user, or whether they are to be
* appended to the path name passed to smbc_opendir() to call
* a further smbc_ function (e.g. open the file with
* smbc_open()). In the former case, the filename should be
* in "human readable" form. In the latter case, the smbc_
* functions expect a URL which must be url-encoded. Those
* functions decode the URL. If, for example, smbc_readdir()
* returned a file name of "abc%20def.txt", passing a path
* with this file name attached to smbc_open() would cause
* smbc_open to attempt to open the file "abc def.txt" since
* the %20 is decoded into a space.
*
* Set this option to True if the names returned by
* smbc_readdir() should be url-encoded such that they can be
* passed back to another smbc_ call. Set it to False if the
* names returned by smbc_readdir() are to be presented to the
* user.
*
* For backwards compatibility, this option defaults to False.
*/
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *)(intptr_t) context->internal->urlencode_readdir_entries;
#else
return (void *) (bool) context->internal->urlencode_readdir_entries;
#endif
} else if (strcmp(option_name, "one_share_per_server") == 0) {
/*
* Some Windows versions appear to have a limit to the number
* of concurrent SESSIONs and/or TREE CONNECTions. In
* one-shot programs (i.e. the program runs and then quickly
* ends, thereby shutting down all connections), it is
* probably reasonable to establish a new connection for each
* share. In long-running applications, the limitation can be
* avoided by using only a single connection to each server,
* and issuing a new TREE CONNECT when the share is accessed.
*/
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (void *) (intptr_t) context->internal->one_share_per_server;
#else
return (void *) (bool) context->internal->one_share_per_server;
#endif
} else if (strcmp(option_name, "use_kerberos") == 0) {
bits = context->flags.bits;
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (context->flags.bits & SMB_CTX_FLAG_USE_KERBEROS
? (void *) (intptr_t) 1
: (void *) (intptr_t) 0);
#else
return (context->flags.bits & SMB_CTX_FLAG_USE_KERBEROS
? (void *) (bool) 1
: (void *) (bool) 0);
#endif
} else if (strcmp(option_name, "fallback_after_kerberos") == 0) {
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (context->flags.bits & SMB_CTX_FLAG_FALLBACK_AFTER_KERBEROS
? (void *) (intptr_t) 1
: (void *) (intptr_t) 0);
#else
return (context->flags.bits & SMB_CTX_FLAG_FALLBACK_AFTER_KERBEROS
? (void *) (bool) 1
: (void *) (bool) 0);
#endif
} else if (strcmp(option_name, "no_auto_anonymous_login") == 0) {
#if defined(__intptr_t_defined) || defined(HAVE_INTPTR_T)
return (context->flags.bits & SMBCCTX_FLAG_NO_AUTO_ANONYMOUS_LOGON
? (void *) (intptr_t) 1
: (void *) (intptr_t) 0);
#else
return (context->flags.bits & SMBCCTX_FLAG_NO_AUTO_ANONYMOUS_LOGON
? (void *) (bool) 1
: (void *) (bool) 0);
#endif
}
return NULL;
}
/*
* Initialize the library, etc.
*
* We accept a struct containing handle information.
* valid values for info->debug from 0 to 100,
* and insist that info->fn must be non-null.
*/
SMBCCTX *
smbc_init_context(SMBCCTX *context)
{
int pid;
char *user = NULL;
char *home = NULL;
extern bool in_client;
if (!context) {
errno = EBADF;
return NULL;
}
/* Do not initialise the same client twice */
if (context->internal->initialized) {
return 0;
}
if (!context->server.get_auth_data_fn ||
context->config.debug < 0 ||
context->config.debug > 100) {
errno = EINVAL;
return NULL;
}
if (!SMBC_initialized) {
/*
* Do some library-wide intializations the first time we get
* called
*/
bool conf_loaded = False;
TALLOC_CTX *frame = talloc_stackframe();
/* Set this to what the user wants */
DEBUGLEVEL = context->config.debug;
load_case_tables();
setup_logging("libsmbclient", True);
if (context->internal->debug_stderr) {
dbf = x_stderr;
x_setbuf(x_stderr, NULL);
}
/* Here we would open the smb.conf file if needed ... */
in_client = True; /* FIXME, make a param */
home = getenv("HOME");
if (home) {
char *conf = NULL;
if (asprintf(&conf, "%s/.smb/smb.conf", home) > 0) {
if (lp_load(conf, True, False, False, True)) {
conf_loaded = True;
} else {
DEBUG(5, ("Could not load config file: %s\n",
conf));
}
SAFE_FREE(conf);
}
}
if (!conf_loaded) {
/*
* Well, if that failed, try the get_dyn_CONFIGFILE
* Which points to the standard locn, and if that
* fails, silently ignore it and use the internal
* defaults ...
*/
if (!lp_load(get_dyn_CONFIGFILE(), True, False, False, False)) {
DEBUG(5, ("Could not load config file: %s\n",
get_dyn_CONFIGFILE()));
} else if (home) {
char *conf;
/*
* We loaded the global config file. Now lets
* load user-specific modifications to the
* global config.
*/
if (asprintf(&conf,
"%s/.smb/smb.conf.append",
home) > 0) {
if (!lp_load(conf, True, False, False, False)) {
DEBUG(10,
("Could not append config file: "
"%s\n",
conf));
}
SAFE_FREE(conf);
}
}
}
load_interfaces(); /* Load the list of interfaces ... */
reopen_logs(); /* Get logging working ... */
/*
* Block SIGPIPE (from lib/util_sock.c: write())
* It is not needed and should not stop execution
*/
BlockSignals(True, SIGPIPE);
/* Done with one-time initialisation */
SMBC_initialized = 1;
TALLOC_FREE(frame);
}
if (!context->config.user) {
/*
* FIXME: Is this the best way to get the user info?
*/
user = getenv("USER");
/* walk around as "guest" if no username can be found */
if (!user) context->config.user = SMB_STRDUP("guest");
else context->config.user = SMB_STRDUP(user);
}
if (!context->config.netbios_name) {
/*
* We try to get our netbios name from the config. If that
* fails we fall back on constructing our netbios name from
* our hostname etc
*/
if (global_myname()) {
context->config.netbios_name = SMB_STRDUP(global_myname());
}
else {
/*
* Hmmm, I want to get hostname as well, but I am too
* lazy for the moment
*/
pid = sys_getpid();
context->config.netbios_name = (char *)SMB_MALLOC(17);
if (!context->config.netbios_name) {
errno = ENOMEM;
return NULL;
}
slprintf(context->config.netbios_name, 16,
"smbc%s%d", context->config.user, pid);
}
}
DEBUG(1, ("Using netbios name %s.\n", context->config.netbios_name));
if (!context->config.workgroup) {
if (lp_workgroup()) {
context->config.workgroup = SMB_STRDUP(lp_workgroup());
}
else {
/* TODO: Think about a decent default workgroup */
context->config.workgroup = SMB_STRDUP("samba");
}
}
DEBUG(1, ("Using workgroup %s.\n", context->config.workgroup));
/* shortest timeout is 1 second */
if (context->config.timeout > 0 && context->config.timeout < 1000)
context->config.timeout = 1000;
/*
* FIXME: Should we check the function pointers here?
*/
context->internal->initialized = True;
return context;
}
/* Return the verion of samba, and thus libsmbclient */
const char *
smbc_version(void)
{
return samba_version_string();
}
/** Get the netbios name used for making connections */
char *
smbc_getNetbiosName(SMBCCTX *c)
{
return c->config.netbios_name;
}
/** Set the netbios name used for making connections */
void
smbc_setNetbiosName(SMBCCTX *c, char * netbios_name)
{
c->config.netbios_name = netbios_name;
}
/** Get the workgroup used for making connections */
char *
smbc_getWorkgroup(SMBCCTX *c)
{
return c->config.workgroup;
}
/** Set the workgroup used for making connections */
void
smbc_setWorkgroup(SMBCCTX *c, char * workgroup)
{
c->config.workgroup = workgroup;
}
/** Get the username used for making connections */
char *
smbc_getUser(SMBCCTX *c)
{
return c->config.user;
}
/** Set the username used for making connections */
void
smbc_setUser(SMBCCTX *c, char * user)
{
c->config.user = user;
}
/** Get the debug level */
int
smbc_getDebug(SMBCCTX *c)
{
return c->config.debug;
}
/** Set the debug level */
void
smbc_setDebug(SMBCCTX *c, int debug)
{
c->config.debug = debug;
}
/**
* Get the timeout used for waiting on connections and response data
* (in milliseconds)
*/
int
smbc_getTimeout(SMBCCTX *c)
{
return c->config.timeout;
}
/**
* Set the timeout used for waiting on connections and response data
* (in milliseconds)
*/
void
smbc_setTimeout(SMBCCTX *c, int timeout)
{
c->config.timeout = timeout;
}
/** Get the function for obtaining authentication data */
smbc_get_auth_data_fn
smbc_getFunctionAuthData(SMBCCTX *c)
{
return c->server.get_auth_data_fn;
}
/** Set the function for obtaining authentication data */
void
smbc_setFunctionAuthData(SMBCCTX *c, smbc_get_auth_data_fn fn)
{
c->server.get_auth_data_fn = fn;
}
/** Get the function for checking if a server is still good */
smbc_check_server_fn
smbc_getFunctionCheckServer(SMBCCTX *c)
{
return c->server.check_server_fn;
}
/** Set the function for checking if a server is still good */
void
smbc_setFunctionCheckServer(SMBCCTX *c, smbc_check_server_fn fn)
{
c->server.check_server_fn = fn;
}
/** Get the function for removing a server if unused */
smbc_remove_unused_server_fn
smbc_getFunctionRemoveUnusedServer(SMBCCTX *c)
{
return c->server.remove_unused_server_fn;
}
/** Set the function for removing a server if unused */
void
smbc_setFunctionRemoveUnusedServer(SMBCCTX *c,
smbc_remove_unused_server_fn fn)
{
c->server.remove_unused_server_fn = fn;
}
/** Get the function to store private data of the server cache */
struct
smbc_server_cache * smbc_getServerCacheData(SMBCCTX *c)
{
return c->cache.server_cache_data;
}
/** Set the function to store private data of the server cache */
void
smbc_setServerCacheData(SMBCCTX *c, struct smbc_server_cache * cache)
{
c->cache.server_cache_data = cache;
}
/** Get the function for adding a cached server */
smbc_add_cached_srv_fn
smbc_getFunctionAddCachedServer(SMBCCTX *c)
{
return c->cache.add_cached_server_fn;
}
/** Set the function for adding a cached server */
void
smbc_setFunctionAddCachedServer(SMBCCTX *c, smbc_add_cached_srv_fn fn)
{
c->cache.add_cached_server_fn = fn;
}
/** Get the function for server cache lookup */
smbc_get_cached_srv_fn
smbc_getFunctionGetCachedServer(SMBCCTX *c)
{
return c->cache.get_cached_server_fn;
}
/** Set the function for server cache lookup */
void
smbc_setFunctionGetCachedServer(SMBCCTX *c, smbc_get_cached_srv_fn fn)
{
c->cache.get_cached_server_fn = fn;
}
/** Get the function for server cache removal */
smbc_remove_cached_srv_fn
smbc_getFunctionRemoveCachedServer(SMBCCTX *c)
{
return c->cache.remove_cached_server_fn;
}
/** Set the function for server cache removal */
void
smbc_setFunctionRemoveCachedServer(SMBCCTX *c,
smbc_remove_cached_srv_fn fn)
{
c->cache.remove_cached_server_fn = fn;
}
/**
* Get the function for server cache purging. This function tries to
* remove all cached servers (e.g. on disconnect)
*/
smbc_purge_cached_srv_fn
smbc_getFunctionPurgeCachedServers(SMBCCTX *c)
{
return c->cache.purge_cached_servers_fn;
}
/**
* Set the function for server cache purging. This function tries to
* remove all cached servers (e.g. on disconnect)
*/
void
smbc_setFunctionPurgeCachedServers(SMBCCTX *c, smbc_purge_cached_srv_fn fn)
{
c->cache.purge_cached_servers_fn = fn;
}
/**
* Callable functions for files.
*/
smbc_open_fn
smbc_getFunctionOpen(SMBCCTX *c)
{
return c->posix_emu.open_fn;
}
void
smbc_setFunctionOpen(SMBCCTX *c, smbc_open_fn fn)
{
c->posix_emu.open_fn = fn;
}
smbc_creat_fn
smbc_getFunctionCreat(SMBCCTX *c)
{
return c->posix_emu.creat_fn;
}
void
smbc_setFunctionCreat(SMBCCTX *c, smbc_creat_fn fn)
{
c->posix_emu.creat_fn = fn;
}
smbc_read_fn
smbc_getFunctionRead(SMBCCTX *c)
{
return c->posix_emu.read_fn;
}
void
smbc_setFunctionRead(SMBCCTX *c, smbc_read_fn fn)
{
c->posix_emu.read_fn = fn;
}
smbc_write_fn
smbc_getFunctionWrite(SMBCCTX *c)
{
return c->posix_emu.write_fn;
}
void
smbc_setFunctionWrite(SMBCCTX *c, smbc_write_fn fn)
{
c->posix_emu.write_fn = fn;
}
smbc_unlink_fn
smbc_getFunctionUnlink(SMBCCTX *c)
{
return c->posix_emu.unlink_fn;
}
void
smbc_setFunctionUnlink(SMBCCTX *c, smbc_unlink_fn fn)
{
c->posix_emu.unlink_fn = fn;
}
smbc_rename_fn
smbc_getFunctionRename(SMBCCTX *c)
{
return c->posix_emu.rename_fn;
}
void
smbc_setFunctionRename(SMBCCTX *c, smbc_rename_fn fn)
{
c->posix_emu.rename_fn = fn;
}
smbc_lseek_fn
smbc_getFunctionLseek(SMBCCTX *c)
{
return c->posix_emu.lseek_fn;
}
void
smbc_setFunctionLseek(SMBCCTX *c, smbc_lseek_fn fn)
{
c->posix_emu.lseek_fn = fn;
}
smbc_stat_fn
smbc_getFunctionStat(SMBCCTX *c)
{
return c->posix_emu.stat_fn;
}
void
smbc_setFunctionStat(SMBCCTX *c, smbc_stat_fn fn)
{
c->posix_emu.stat_fn = fn;
}
smbc_fstat_fn
smbc_getFunctionFstat(SMBCCTX *c)
{
return c->posix_emu.fstat_fn;
}
void
smbc_setFunctionFstat(SMBCCTX *c, smbc_fstat_fn fn)
{
c->posix_emu.fstat_fn = fn;
}
smbc_ftruncate_fn
smbc_getFunctionFtruncate(SMBCCTX *c)
{
return c->internal->posix_emu.ftruncate_fn;
}
void
smbc_setFunctionFtruncate(SMBCCTX *c, smbc_ftruncate_fn fn)
{
c->internal->posix_emu.ftruncate_fn = fn;
}
smbc_close_fn
smbc_getFunctionClose(SMBCCTX *c)
{
return c->posix_emu.close_fn;
}
void
smbc_setFunctionClose(SMBCCTX *c, smbc_close_fn fn)
{
c->posix_emu.close_fn = fn;
}
/**
* Callable functions for directories.
*/
smbc_opendir_fn
smbc_getFunctionOpendir(SMBCCTX *c)
{
return c->posix_emu.opendir_fn;
}
void
smbc_setFunctionOpendir(SMBCCTX *c, smbc_opendir_fn fn)
{
c->posix_emu.opendir_fn = fn;
}
smbc_closedir_fn
smbc_getFunctionClosedir(SMBCCTX *c)
{
return c->posix_emu.closedir_fn;
}
void
smbc_setFunctionClosedir(SMBCCTX *c, smbc_closedir_fn fn)
{
c->posix_emu.closedir_fn = fn;
}
smbc_readdir_fn
smbc_getFunctionReaddir(SMBCCTX *c)
{
return c->posix_emu.readdir_fn;
}
void
smbc_setFunctionReaddir(SMBCCTX *c, smbc_readdir_fn fn)
{
c->posix_emu.readdir_fn = fn;
}
smbc_getdents_fn
smbc_getFunctionGetdents(SMBCCTX *c)
{
return c->posix_emu.getdents_fn;
}
void
smbc_setFunctionGetdents(SMBCCTX *c, smbc_getdents_fn fn)
{
c->posix_emu.getdents_fn = fn;
}
smbc_mkdir_fn
smbc_getFunctionMkdir(SMBCCTX *c)
{
return c->posix_emu.mkdir_fn;
}
void
smbc_setFunctionMkdir(SMBCCTX *c, smbc_mkdir_fn fn)
{
c->posix_emu.mkdir_fn = fn;
}
smbc_rmdir_fn
smbc_getFunctionRmdir(SMBCCTX *c)
{
return c->posix_emu.rmdir_fn;
}
void
smbc_setFunctionRmdir(SMBCCTX *c, smbc_rmdir_fn fn)
{
c->posix_emu.rmdir_fn = fn;
}
smbc_telldir_fn
smbc_getFunctionTelldir(SMBCCTX *c)
{
return c->posix_emu.telldir_fn;
}
void
smbc_setFunctionTelldir(SMBCCTX *c, smbc_telldir_fn fn)
{
c->posix_emu.telldir_fn = fn;
}
smbc_lseekdir_fn
smbc_getFunctionLseekdir(SMBCCTX *c)
{
return c->posix_emu.lseekdir_fn;
}
void
smbc_setFunctionLseekdir(SMBCCTX *c, smbc_lseekdir_fn fn)
{
c->posix_emu.lseekdir_fn = fn;
}
smbc_fstatdir_fn
smbc_getFunctionFstatdir(SMBCCTX *c)
{
return c->posix_emu.fstatdir_fn;
}
void
smbc_setFunctionFstatdir(SMBCCTX *c, smbc_fstatdir_fn fn)
{
c->posix_emu.fstatdir_fn = fn;
}
/**
* Callable functions applicable to both files and directories.
*/
smbc_chmod_fn
smbc_getFunctionChmod(SMBCCTX *c)
{
return c->posix_emu.chmod_fn;
}
void
smbc_setFunctionChmod(SMBCCTX *c, smbc_chmod_fn fn)
{
c->posix_emu.chmod_fn = fn;
}
smbc_utimes_fn
smbc_getFunctionUtimes(SMBCCTX *c)
{
return c->posix_emu.utimes_fn;
}
void
smbc_setFunctionUtimes(SMBCCTX *c, smbc_utimes_fn fn)
{
c->posix_emu.utimes_fn = fn;
}
smbc_setxattr_fn
smbc_getFunctionSetxattr(SMBCCTX *c)
{
return c->posix_emu.setxattr_fn;
}
void
smbc_setFunctionSetxattr(SMBCCTX *c, smbc_setxattr_fn fn)
{
c->posix_emu.setxattr_fn = fn;
}
smbc_getxattr_fn
smbc_getFunctionGetxattr(SMBCCTX *c)
{
return c->posix_emu.getxattr_fn;
}
void
smbc_setFunctionGetxattr(SMBCCTX *c, smbc_getxattr_fn fn)
{
c->posix_emu.getxattr_fn = fn;
}
smbc_removexattr_fn
smbc_getFunctionRemovexattr(SMBCCTX *c)
{
return c->posix_emu.removexattr_fn;
}
void
smbc_setFunctionRemovexattr(SMBCCTX *c, smbc_removexattr_fn fn)
{
c->posix_emu.removexattr_fn = fn;
}
smbc_listxattr_fn
smbc_getFunctionListxattr(SMBCCTX *c)
{
return c->posix_emu.listxattr_fn;
}
void
smbc_setFunctionListxattr(SMBCCTX *c, smbc_listxattr_fn fn)
{
c->posix_emu.listxattr_fn = fn;
}
/**
* Callable functions related to printing
*/
smbc_print_file_fn
smbc_getFunctionPrintFile(SMBCCTX *c)
{
return c->printing.print_file_fn;
}
void
smbc_setFunctionPrintFile(SMBCCTX *c, smbc_print_file_fn fn)
{
c->printing.print_file_fn = fn;
}
smbc_open_print_job_fn
smbc_getFunctionOpenPrintJob(SMBCCTX *c)
{
return c->printing.open_print_job_fn;
}
void
smbc_setFunctionOpenPrintJob(SMBCCTX *c,
smbc_open_print_job_fn fn)
{
c->printing.open_print_job_fn = fn;
}
smbc_list_print_jobs_fn
smbc_getFunctionListPrintJobs(SMBCCTX *c)
{
return c->printing.list_print_jobs_fn;
}
void
smbc_setFunctionListPrintJobs(SMBCCTX *c,
smbc_list_print_jobs_fn fn)
{
c->printing.list_print_jobs_fn = fn;
}
smbc_unlink_print_job_fn
smbc_getFunctionUnlinkPrintJob(SMBCCTX *c)
{
return c->printing.unlink_print_job_fn;
}
void
smbc_setFunctionUnlinkPrintJob(SMBCCTX *c,
smbc_unlink_print_job_fn fn)
{
c->printing.unlink_print_job_fn = fn;
}
|