-
Notifications
You must be signed in to change notification settings - Fork 0
/
confdb.c
2657 lines (2290 loc) · 78.4 KB
/
confdb.c
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
/*
SSSD
SSSD Configuration DB
Copyright (C) Simo Sorce <ssorce@redhat.com> 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 "config.h"
#include <ctype.h>
#include "util/util.h"
#include "confdb/confdb.h"
#include "confdb/confdb_private.h"
#include "util/strtonum.h"
#include "db/sysdb.h"
#define CONFDB_ZERO_CHECK_OR_JUMP(var, ret, err, label) do { \
if (!var) { \
ret = err; \
goto label; \
} \
} while(0)
/* Warning messages */
#define SAME_DOMAINS_ERROR_MSG "Domain '%s' is the same as or differs only "\
"in case from domain '%s'.\n"
#define RETRIEVE_DOMAIN_ERROR_MSG "Error (%d [%s]) retrieving domain [%s], "\
"skipping!\n"
/* SSSD domain name that is used for the auto-configured files domain */
#define IMPLICIT_FILES_DOMAIN_NAME "implicit_files"
static int confdb_get_enabled_domain_list(struct confdb_ctx *cdb,
TALLOC_CTX *ctx, char ***_result);
static int confdb_get_domain_enabled(struct confdb_ctx *cdb,
const char *domain, bool *_enabled);
static char *prepend_cn(char *str, int *slen, const char *comp, int clen)
{
char *ret;
ret = talloc_realloc(NULL, str, char, *slen + 4 + clen + 1);
if (!ret)
return NULL;
/* move current string to the end */
memmove(&ret[clen +4], ret, *slen+1); /* includes termination */
memcpy(ret, "cn=", 3);
memcpy(&ret[3], comp, clen);
ret[clen+3] = ',';
*slen = *slen + 4 + clen;
return ret;
}
int parse_section(TALLOC_CTX *mem_ctx, const char *section,
char **sec_dn, const char **rdn_name)
{
TALLOC_CTX *tmp_ctx;
char *dn = NULL;
char *p;
const char *s;
int l, ret;
/* section must be a non null string and must not start with '/' */
if (!section || !*section || *section == '/') return EINVAL;
tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) return ENOMEM;
s = section;
l = 0;
while ((p = strchrnul(s, '/'))) {
if (l == 0) {
dn = talloc_asprintf(tmp_ctx, "cn=%s", s);
l = 3 + (p-s);
dn[l] = '\0';
} else {
dn = prepend_cn(dn, &l, s, p-s);
}
if (!dn) {
ret = ENOMEM;
goto done;
}
if (*p == '\0') {
if (rdn_name) *rdn_name = s;
break; /* reached end */
}
s = p+1;
if (*s == '\0') { /* a section cannot end in '.' */
ret = EINVAL;
goto done;
}
}
*sec_dn = talloc_steal(mem_ctx, dn);
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
int confdb_add_param(struct confdb_ctx *cdb,
bool replace,
const char *section,
const char *attribute,
const char **values)
{
TALLOC_CTX *tmp_ctx = NULL;
struct ldb_message *msg;
struct ldb_result *res;
struct ldb_dn *dn;
char *secdn;
const char *rdn_name;
int ret, i;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
ret = ENOMEM;
goto done;
}
ret = parse_section(tmp_ctx, section, &secdn, &rdn_name);
if (ret != EOK) {
goto done;
}
dn = ldb_dn_new(tmp_ctx, cdb->ldb, secdn);
CONFDB_ZERO_CHECK_OR_JUMP(dn, ret, EIO, done);
ret = ldb_search(cdb->ldb, tmp_ctx, &res,
dn, LDB_SCOPE_BASE, NULL, NULL);
if (ret != LDB_SUCCESS) {
ret = EIO;
goto done;
}
msg = ldb_msg_new(tmp_ctx);
CONFDB_ZERO_CHECK_OR_JUMP(msg, ret, ENOMEM, done);
msg->dn = talloc_steal(msg, dn);
CONFDB_ZERO_CHECK_OR_JUMP(msg->dn, ret, ENOMEM, done);
if (res->count == 0) { /* add a new message */
errno = 0;
/* cn first */
ret = ldb_msg_add_string(msg, "cn", rdn_name);
if (ret != LDB_SUCCESS) {
if (errno) ret = errno;
else ret = EIO;
goto done;
}
/* now the requested attribute */
for (i = 0; values[i]; i++) {
ret = ldb_msg_add_string(msg, attribute, values[i]);
if (ret != LDB_SUCCESS) {
if (errno) ret = errno;
else ret = EIO;
goto done;
}
}
ret = ldb_add(cdb->ldb, msg);
if (ret != LDB_SUCCESS) {
ret = EIO;
goto done;
}
} else {
int optype;
errno = 0;
/* mark this as a replacement */
if (replace) optype = LDB_FLAG_MOD_REPLACE;
else optype = LDB_FLAG_MOD_ADD;
ret = ldb_msg_add_empty(msg, attribute, optype, NULL);
if (ret != LDB_SUCCESS) {
if (errno) ret = errno;
else ret = EIO;
goto done;
}
/* now the requested attribute */
for (i = 0; values[i]; i++) {
ret = ldb_msg_add_string(msg, attribute, values[i]);
if (ret != LDB_SUCCESS) {
if (errno) ret = errno;
else ret = EIO;
goto done;
}
}
ret = ldb_modify(cdb->ldb, msg);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_MINOR_FAILURE,
"ldb_modify failed: [%s](%d)[%s]\n",
ldb_strerror(ret), ret, ldb_errstring(cdb->ldb));
ret = EIO;
goto done;
}
}
ret = EOK;
done:
talloc_free(tmp_ctx);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to add [%s] to [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
}
return ret;
}
int confdb_get_param(struct confdb_ctx *cdb,
TALLOC_CTX *mem_ctx,
const char *section,
const char *attribute,
char ***values)
{
TALLOC_CTX *tmp_ctx;
struct ldb_result *res;
struct ldb_dn *dn;
char *secdn;
const char *attrs[] = { attribute, NULL };
char **vals;
struct ldb_message_element *el;
int ret, i;
tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx)
return ENOMEM;
ret = parse_section(tmp_ctx, section, &secdn, NULL);
if (ret != EOK) {
goto done;
}
dn = ldb_dn_new(tmp_ctx, cdb->ldb, secdn);
if (!dn) {
ret = EIO;
goto done;
}
ret = ldb_search(cdb->ldb, tmp_ctx, &res,
dn, LDB_SCOPE_BASE, attrs, NULL);
if (ret != LDB_SUCCESS) {
ret = EIO;
goto done;
}
if (res->count > 1) {
ret = EIO;
goto done;
}
vals = talloc_zero(mem_ctx, char *);
ret = EOK;
if (res->count > 0) {
el = ldb_msg_find_element(res->msgs[0], attribute);
if (el && el->num_values > 0) {
vals = talloc_realloc(mem_ctx, vals, char *, el->num_values +1);
if (!vals) {
ret = ENOMEM;
goto done;
}
/* should always be strings so this should be safe */
for (i = 0; i < el->num_values; i++) {
struct ldb_val v = el->values[i];
vals[i] = talloc_strndup(vals, (char *)v.data, v.length);
if (!vals[i]) {
ret = ENOMEM;
goto done;
}
}
vals[i] = NULL;
}
}
*values = vals;
done:
talloc_free(tmp_ctx);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to get [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
}
return ret;
}
int confdb_set_string(struct confdb_ctx *cdb,
const char *section,
const char *attribute,
const char *val)
{
TALLOC_CTX *tmp_ctx;
struct ldb_dn *dn;
char *secdn;
struct ldb_message *msg;
int ret, lret;
tmp_ctx = talloc_new(NULL);
if (!tmp_ctx) {
return ENOMEM;
}
ret = parse_section(tmp_ctx, section, &secdn, NULL);
if (ret != EOK) {
goto done;
}
dn = ldb_dn_new(tmp_ctx, cdb->ldb, secdn);
if (!dn) {
ret = EIO;
goto done;
}
msg = ldb_msg_new(tmp_ctx);
if (!msg) {
ret = ENOMEM;
goto done;
}
msg->dn = dn;
lret = ldb_msg_add_empty(msg, attribute, LDB_FLAG_MOD_REPLACE, NULL);
if (lret != LDB_SUCCESS) {
DEBUG(SSSDBG_MINOR_FAILURE,
"ldb_msg_add_empty failed: [%s]\n", ldb_strerror(lret));
ret = EIO;
goto done;
}
lret = ldb_msg_add_string(msg, attribute, val);
if (lret != LDB_SUCCESS) {
DEBUG(SSSDBG_MINOR_FAILURE,
"ldb_msg_add_string failed: [%s]\n", ldb_strerror(lret));
ret = EIO;
goto done;
}
lret = ldb_modify(cdb->ldb, msg);
if (lret != LDB_SUCCESS) {
DEBUG(SSSDBG_MINOR_FAILURE,
"ldb_modify failed: [%s](%d)[%s]\n",
ldb_strerror(lret), lret, ldb_errstring(cdb->ldb));
ret = EIO;
goto done;
}
ret = EOK;
done:
talloc_free(tmp_ctx);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to set [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
}
return ret;
}
int confdb_get_string(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
const char *section, const char *attribute,
const char *defstr, char **result)
{
char **values = NULL;
char *restr;
int ret;
ret = confdb_get_param(cdb, ctx, section, attribute, &values);
if (ret != EOK) {
goto failed;
}
if (values[0]) {
if (values[1] != NULL) {
/* too many values */
ret = EINVAL;
goto failed;
}
restr = talloc_steal(ctx, values[0]);
} else {
/* Did not return a value, so use the default */
if (defstr == NULL) { /* No default given */
*result = NULL;
talloc_free(values);
return EOK;
}
/* Copy the default string */
restr = talloc_strdup(ctx, defstr);
}
if (!restr) {
ret = ENOMEM;
goto failed;
}
talloc_free(values);
*result = restr;
return EOK;
failed:
talloc_free(values);
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to get [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
return ret;
}
int confdb_get_int(struct confdb_ctx *cdb,
const char *section, const char *attribute,
int defval, int *result)
{
char **values = NULL;
long val;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
ret = ENOMEM;
goto failed;
}
ret = confdb_get_param(cdb, tmp_ctx, section, attribute, &values);
if (ret != EOK) {
goto failed;
}
if (values[0]) {
if (values[1] != NULL) {
/* too many values */
ret = EINVAL;
goto failed;
}
errno = 0;
val = strtol(values[0], NULL, 0);
ret = errno;
if (ret != 0) {
goto failed;
}
if (val < INT_MIN || val > INT_MAX) {
ret = ERANGE;
goto failed;
}
} else {
val = defval;
}
talloc_free(tmp_ctx);
*result = (int)val;
return EOK;
failed:
talloc_free(tmp_ctx);
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to read [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
return ret;
}
long confdb_get_long(struct confdb_ctx *cdb,
const char *section, const char *attribute,
long defval, long *result)
{
char **values = NULL;
long val;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
ret = ENOMEM;
goto failed;
}
ret = confdb_get_param(cdb, tmp_ctx, section, attribute, &values);
if (ret != EOK) {
goto failed;
}
if (values[0]) {
if (values[1] != NULL) {
/* too many values */
ret = EINVAL;
goto failed;
}
errno = 0;
val = strtol(values[0], NULL, 0);
ret = errno;
if (ret != 0) {
goto failed;
}
} else {
val = defval;
}
talloc_free(tmp_ctx);
*result = val;
return EOK;
failed:
talloc_free(tmp_ctx);
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to read [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
return ret;
}
int confdb_get_bool(struct confdb_ctx *cdb,
const char *section, const char *attribute,
bool defval, bool *result)
{
char **values = NULL;
bool val;
int ret;
TALLOC_CTX *tmp_ctx;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
ret = ENOMEM;
goto failed;
}
ret = confdb_get_param(cdb, tmp_ctx, section, attribute, &values);
if (ret != EOK) {
goto failed;
}
if (values[0]) {
if (values[1] != NULL) {
/* too many values */
ret = EINVAL;
goto failed;
}
if (strcasecmp(values[0], "FALSE") == 0) {
val = false;
} else if (strcasecmp(values[0], "TRUE") == 0) {
val = true;
} else {
DEBUG(SSSDBG_OP_FAILURE, "Value is not a boolean!\n");
ret = EINVAL;
goto failed;
}
} else {
val = defval;
}
talloc_free(tmp_ctx);
*result = val;
return EOK;
failed:
talloc_free(tmp_ctx);
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to read [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
return ret;
}
/* WARNING: Unlike other similar functions, this one does NOT take a default,
* and returns ENOENT if the attribute was not found ! */
int confdb_get_string_as_list(struct confdb_ctx *cdb, TALLOC_CTX *ctx,
const char *section, const char *attribute,
char ***result)
{
char **values = NULL;
int ret;
ret = confdb_get_param(cdb, ctx, section, attribute, &values);
if (ret != EOK) {
goto done;
}
if (values && values[0]) {
if (values[1] != NULL) {
/* too many values */
ret = EINVAL;
goto done;
}
} else {
/* Did not return a value */
ret = ENOENT;
goto done;
}
ret = split_on_separator(ctx, values[0], ',', true, true, result, NULL);
done:
talloc_free(values);
if (ret != EOK && ret != ENOENT) {
DEBUG(SSSDBG_OP_FAILURE,
"Failed to get [%s] from [%s], error [%d] (%s)\n",
attribute, section, ret, strerror(ret));
}
return ret;
}
int confdb_init(TALLOC_CTX *mem_ctx,
struct confdb_ctx **cdb_ctx,
const char *confdb_location)
{
struct confdb_ctx *cdb;
int ret = EOK;
mode_t old_umask;
cdb = talloc_zero(mem_ctx, struct confdb_ctx);
if (!cdb)
return ENOMEM;
/* Because confdb calls use sync ldb calls, we create a separate event
* context here. This will prevent the ldb sync calls to start nested
* events.
* NOTE: this means that we *cannot* do async calls and return in confdb
* unless we convert all calls and hook back to the main event context.
*/
cdb->pev = tevent_context_init(cdb);
if (!cdb->pev) {
talloc_free(cdb);
return EIO;
}
cdb->ldb = ldb_init(cdb, cdb->pev);
if (!cdb->ldb) {
talloc_free(cdb);
return EIO;
}
ret = ldb_set_debug(cdb->ldb, ldb_debug_messages, NULL);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_FATAL_FAILURE,"Could not set up debug fn.\n");
talloc_free(cdb);
return EIO;
}
old_umask = umask(SSS_DFL_UMASK);
ret = ldb_connect(cdb->ldb, confdb_location, 0, NULL);
umask(old_umask);
if (ret != LDB_SUCCESS) {
DEBUG(SSSDBG_FATAL_FAILURE, "Unable to open config database [%s]\n",
confdb_location);
talloc_free(cdb);
return EIO;
}
*cdb_ctx = cdb;
return EOK;
}
static errno_t get_entry_as_uint32(struct ldb_message *msg,
uint32_t *return_value,
const char *entry,
uint32_t default_value)
{
const char *tmp = NULL;
char *endptr;
uint32_t u32ret = 0;
*return_value = 0;
if (!msg || !entry) {
return EFAULT;
}
tmp = ldb_msg_find_attr_as_string(msg, entry, NULL);
if (tmp == NULL) {
*return_value = default_value;
return EOK;
}
if ((*tmp == '-') || (*tmp == '\0')) {
return EINVAL;
}
u32ret = strtouint32 (tmp, &endptr, 10);
if (errno) {
return errno;
}
if (*endptr != '\0') {
/* Not all of the string was a valid number */
return EINVAL;
}
*return_value = u32ret;
return EOK;
}
static errno_t get_entry_as_bool(struct ldb_message *msg,
bool *return_value,
const char *entry,
bool default_value)
{
const char *tmp = NULL;
*return_value = 0;
if (!msg || !entry) {
return EFAULT;
}
tmp = ldb_msg_find_attr_as_string(msg, entry, NULL);
if (tmp == NULL || *tmp == '\0') {
*return_value = default_value;
return EOK;
}
if (strcasecmp(tmp, "FALSE") == 0) {
*return_value = 0;
}
else if (strcasecmp(tmp, "TRUE") == 0) {
*return_value = 1;
}
else {
return EINVAL;
}
return EOK;
}
/* The default UID/GID for domains is 1. This wouldn't work well with
* the local provider */
static uint32_t confdb_get_min_id(struct sss_domain_info *domain)
{
uint32_t defval = SSSD_MIN_ID;
if (domain && local_provider_is_built()
&& strcasecmp(domain->provider, "local") == 0) {
defval = SSSD_LOCAL_MINID;
}
return defval;
}
static errno_t init_cached_auth_timeout(struct confdb_ctx *cdb,
struct ldb_message *msg,
uint32_t *_cached_auth_timeout)
{
int cred_expiration;
int id_timeout;
errno_t ret;
uint32_t cached_auth_timeout;
ret = get_entry_as_uint32(msg, &cached_auth_timeout,
CONFDB_DOMAIN_CACHED_AUTH_TIMEOUT, 0);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Invalid value for [%s]\n", CONFDB_DOMAIN_CACHED_AUTH_TIMEOUT);
goto done;
}
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_CRED_TIMEOUT, 0, &cred_expiration);
if (ret != EOK) {
DEBUG(SSSDBG_CRIT_FAILURE,
"Failed to read expiration time of offline credentials.\n");
goto done;
}
/* convert from days to seconds */
cred_expiration *= 3600 * 24;
if (cred_expiration != 0 &&
cred_expiration < cached_auth_timeout) {
cached_auth_timeout = cred_expiration;
}
/* Set up the PAM identity timeout */
ret = confdb_get_int(cdb, CONFDB_PAM_CONF_ENTRY,
CONFDB_PAM_ID_TIMEOUT, 5,
&id_timeout);
if (ret != EOK) goto done;
if (cached_auth_timeout > id_timeout) {
DEBUG(SSSDBG_MINOR_FAILURE,
"cached_auth_timeout is greater than pam_id_timeout so be aware "
"that back end could be called to handle initgroups.\n");
}
ret = EOK;
done:
if (ret == EOK) {
*_cached_auth_timeout = cached_auth_timeout;
}
return ret;
}
static int confdb_get_domain_section(TALLOC_CTX *mem_ctx,
struct confdb_ctx *cdb,
const char *section,
const char *name,
struct ldb_result **_res)
{
TALLOC_CTX *tmp_ctx;
int ret;
struct ldb_result *res;
struct ldb_dn *dn;
tmp_ctx = talloc_new(NULL);
if (tmp_ctx == NULL) {
return ENOMEM;
}
dn = ldb_dn_new_fmt(tmp_ctx, cdb->ldb, "cn=%s,%s", name, section);
if (dn == NULL) {
ret = ENOMEM;
goto done;
}
ret = ldb_search(cdb->ldb, tmp_ctx, &res, dn,
LDB_SCOPE_BASE, NULL, NULL);
if (ret != LDB_SUCCESS) {
ret = sss_ldb_error_to_errno(ret);
goto done;
}
if (res->count == 0) {
ret = ENOENT;
goto done;
} else if (res->count > 1) {
ret = E2BIG;
goto done;
}
*_res = talloc_steal(mem_ctx, res);
ret = EOK;
done:
talloc_free(tmp_ctx);
return ret;
}
static char *confdb_get_domain_hostname(TALLOC_CTX *mem_ctx,
struct ldb_result *res,
const char *provider)
{
char sys[HOST_NAME_MAX + 1] = {'\0'};
const char *opt = NULL;
int ret;
if (strcasecmp(provider, "ad") == 0) {
opt = ldb_msg_find_attr_as_string(res->msgs[0], "ad_hostname", NULL);
} else if (strcasecmp(provider, "ipa") == 0) {
opt = ldb_msg_find_attr_as_string(res->msgs[0], "ipa_hostname", NULL);
}
if (opt != NULL) {
return talloc_strdup(mem_ctx, opt);
}
ret = gethostname(sys, sizeof(sys));
if (ret != 0) {
ret = errno;
DEBUG(SSSDBG_CRIT_FAILURE, "Unable to get hostname [%d]: %s\n", ret,
sss_strerror(ret));
return NULL;
}
return talloc_strdup(mem_ctx, sys);
}
static int confdb_get_domain_internal(struct confdb_ctx *cdb,
TALLOC_CTX *mem_ctx,
const char *name,
struct sss_domain_info **_domain)
{
struct sss_domain_info *domain;
struct ldb_result *res;
TALLOC_CTX *tmp_ctx;
const char *tmp, *tmp_pam_target, *tmp_auth;
int ret, val;
uint32_t entry_cache_timeout;
char *default_domain;
bool fqnames_default = false;
int memcache_timeout;
tmp_ctx = talloc_new(mem_ctx);
if (!tmp_ctx) return ENOMEM;
ret = confdb_get_domain_section(tmp_ctx, cdb, CONFDB_DOMAIN_BASEDN,
name, &res);
if (ret == ENOENT) {
DEBUG(SSSDBG_FATAL_FAILURE, "Unknown domain [%s]\n", name);
goto done;
} else if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Error %d: %s while retrieving %s\n",
ret, sss_strerror(ret), name);
goto done;
}
ret = confdb_get_int(cdb,
CONFDB_NSS_CONF_ENTRY,
CONFDB_MEMCACHE_TIMEOUT,
300, &memcache_timeout);
if (ret != EOK) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Unable to get memory cache entry timeout.\n");
goto done;
}
domain = talloc_zero(mem_ctx, struct sss_domain_info);
if (!domain) {
ret = ENOMEM;
goto done;
}
tmp = ldb_msg_find_attr_as_string(res->msgs[0], "cn", NULL);
if (!tmp) {
DEBUG(SSSDBG_FATAL_FAILURE,
"Invalid configuration entry, fatal error!\n");
ret = EINVAL;
goto done;
}
domain->name = talloc_strdup(domain, tmp);
if (!domain->name) {
ret = ENOMEM;
goto done;
}
domain->conn_name = domain->name;
tmp = ldb_msg_find_attr_as_string(res->msgs[0],
CONFDB_DOMAIN_ID_PROVIDER,
NULL);
if (tmp) {
domain->provider = talloc_strdup(domain, tmp);
if (!domain->provider) {
ret = ENOMEM;
goto done;
}
}
else {
DEBUG(SSSDBG_FATAL_FAILURE,
"Domain [%s] does not specify an ID provider, disabling!\n",
domain->name);
ret = EINVAL;
goto done;
}
tmp = ldb_msg_find_attr_as_string(res->msgs[0], CONFDB_DOMAIN_AUTO_UPG, NULL);
if (tmp == NULL || *tmp == '\0') {
tmp = "false";
}
if (strcasecmp(domain->provider, "local") == 0) {
if (!local_provider_is_built()) {
DEBUG(SSSDBG_FATAL_FAILURE,
"ID provider 'local' no longer supported, disabling\n");
ret = EINVAL;
goto done;
}
}
domain->mpg_mode = str_to_domain_mpg_mode(tmp);
if (local_provider_is_built()
&& strcasecmp(domain->provider, "local") == 0) {
/* If this is the local provider, we need to ensure that
* no other provider was specified for other types, since