summaryrefslogtreecommitdiff
path: root/src/providers/ipa/ipa_s2n_exop.c
blob: 0b4842ccc0ef1abdf34e71e4b02aa78e9a25a3c6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
/*
    SSSD

    IPA Helper routines - external users and groups with s2n plugin

    Copyright (C) Sumit Bose <sbose@redhat.com> - 2011

    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 "util/util.h"
#include "util/sss_nss.h"
#include "db/sysdb.h"
#include "providers/ldap/sdap_async_private.h"
#include "providers/ldap/ldap_common.h"

enum input_types {
    INP_SID = 1,
    INP_NAME,
    INP_POSIX_UID,
    INP_POSIX_GID
};

enum request_types {
    REQ_SIMPLE = 1,
    REQ_FULL
};

enum response_types {
    RESP_SID = 1,
    RESP_NAME,
    RESP_USER,
    RESP_GROUP
};

/* ==Sid2Name Extended Operation============================================= */
#define EXOP_SID2NAME_OID "2.16.840.1.113730.3.8.10.4"

struct ipa_s2n_exop_state {
    struct sdap_handle *sh;

    struct sdap_op *op;

    int result;
    char *retoid;
    struct berval *retdata;
};

static void ipa_s2n_exop_done(struct sdap_op *op,
                           struct sdap_msg *reply,
                           int error, void *pvt);

static struct tevent_req *ipa_s2n_exop_send(TALLOC_CTX *mem_ctx,
                                            struct tevent_context *ev,
                                            struct sdap_handle *sh,
                                            struct berval *bv)
{
    struct tevent_req *req = NULL;
    struct ipa_s2n_exop_state *state;
    int ret;
    int msgid;

    req = tevent_req_create(mem_ctx, &state, struct ipa_s2n_exop_state);
    if (!req) return NULL;

    state->sh = sh;
    state->result = LDAP_OPERATIONS_ERROR;
    state->retoid = NULL;
    state->retdata = NULL;

    DEBUG(SSSDBG_TRACE_FUNC, ("Executing extended operation\n"));

    ret = ldap_extended_operation(state->sh->ldap, EXOP_SID2NAME_OID,
                                  bv, NULL, NULL, &msgid);
    if (ret == -1 || msgid == -1) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("ldap_extended_operation failed\n"));
        goto fail;
    }
    DEBUG(SSSDBG_TRACE_INTERNAL, ("ldap_extended_operation sent, msgid = %d\n", msgid));

    /* FIXME: get timeouts from configuration, for now 10 secs. */
    ret = sdap_op_add(state, ev, state->sh, msgid, ipa_s2n_exop_done, req, 10,
                      &state->op);
    if (ret) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("Failed to set up operation!\n"));
        goto fail;
    }

    return req;

fail:
    tevent_req_error(req, EIO);
    tevent_req_post(req, ev);
    return req;
}

static void ipa_s2n_exop_done(struct sdap_op *op,
                               struct sdap_msg *reply,
                               int error, void *pvt)
{
    struct tevent_req *req = talloc_get_type(pvt, struct tevent_req);
    struct ipa_s2n_exop_state *state = tevent_req_data(req,
                                                    struct ipa_s2n_exop_state);
    int ret;
    char *errmsg = NULL;
    char *retoid = NULL;
    struct berval *retdata = NULL;

    if (error) {
        tevent_req_error(req, error);
        return;
    }

    ret = ldap_parse_result(state->sh->ldap, reply->msg,
                            &state->result, &errmsg, NULL, NULL,
                            NULL, 0);
    if (ret != LDAP_SUCCESS) {
        DEBUG(SSSDBG_OP_FAILURE, ("ldap_parse_result failed (%d)\n", state->op->msgid));
        ret = EIO;
        goto done;
    }

    DEBUG(SSSDBG_TRACE_FUNC, ("ldap_extended_operation result: %s(%d), %s\n",
            sss_ldap_err2string(state->result), state->result, errmsg));

    if (state->result != LDAP_SUCCESS) {
        ret = EIO;
        goto done;
    }

    ret = ldap_parse_extended_result(state->sh->ldap, reply->msg,
                                      &retoid, &retdata, 0);
    if (ret != LDAP_SUCCESS) {
        DEBUG(SSSDBG_OP_FAILURE, ("ldap_parse_extendend_result failed (%d)\n", ret));
        ret = EIO;
        goto done;
    }

    state->retoid = talloc_strdup(state, retoid);
    if (state->retoid == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
        ret = ENOMEM;
        goto done;
    }

    state->retdata = talloc(state, struct berval);
    if (state->retdata == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("talloc failed.\n"));
        ret = ENOMEM;
        goto done;
    }
    state->retdata->bv_len = retdata->bv_len;
    state->retdata->bv_val = talloc_memdup(state->retdata, retdata->bv_val,
                                           retdata->bv_len);
    if (state->retdata->bv_val == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("talloc_memdup failed.\n"));
        ret = ENOMEM;
        goto done;
    }

    ret = EOK;

done:
    ldap_memfree(errmsg);
    ldap_memfree(retoid);
    ber_bvfree(retdata);
    if (ret == EOK) {
        tevent_req_done(req);
    } else {
        tevent_req_error(req, ret);
    }
}

static int ipa_s2n_exop_recv(struct tevent_req *req, TALLOC_CTX *mem_ctx,
                             enum sdap_result *result, char **retoid,
                             struct berval **retdata)
{
    struct ipa_s2n_exop_state *state = tevent_req_data(req,
                                                    struct ipa_s2n_exop_state);

    TEVENT_REQ_RETURN_ON_ERROR(req);

    if (state->result == LDAP_SUCCESS) {
        *result = SDAP_SUCCESS;
        *retoid = talloc_steal(mem_ctx, state->retoid);
        *retdata = talloc_steal(mem_ctx, state->retdata);
    } else {
        *result = SDAP_ERROR;
    }

    return EOK;
}

static errno_t talloc_ber_flatten(TALLOC_CTX *mem_ctx, BerElement *ber,
                                  struct berval **_bv)
{
    int ret;
    struct berval *bv = NULL;
    struct berval *tbv = NULL;

    ret = ber_flatten(ber, &bv);
    if (ret == -1) {
        ret = EFAULT;
        goto done;
    }

    tbv = talloc_zero(mem_ctx, struct berval);
    if (tbv == NULL) {
        ret = ENOMEM;
        goto done;
    }

    tbv->bv_len = bv->bv_len;
    tbv->bv_val = talloc_memdup(tbv, bv->bv_val, bv->bv_len);
    if (tbv->bv_val == NULL) {
        ret = ENOMEM;
        goto done;
    }

    ret = EOK;

done:
    ber_bvfree(bv);
    if (ret == EOK) {
        *_bv = tbv;
    } else  {
        talloc_free(tbv);
    }

    return ret;
}

/* The extended operation expect the following ASN.1 encoded request data:
 *
 * ExtdomRequestValue ::= SEQUENCE {
 *    inputType ENUMERATED {
 *        sid (1),
 *        name (2),
 *        posix uid (3),
 *        posix gid (3)
 *    },
 *    requestType ENUMERATED {
 *        simple (1),
 *        full (2)
 *    },
 *    data InputData
 * }
 *
 * InputData ::= CHOICE {
 *    sid OCTET STRING,
 *    name NameDomainData
 *    uid PosixUid,
 *    gid PosixGid
 * }
 *
 * NameDomainData ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    object_name OCTET STRING
 * }
 *
 * PosixUid ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    uid INTEGER
 * }
 *
 * PosixGid ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    gid INTEGER
 * }
 *
 */

static errno_t s2n_encode_request(TALLOC_CTX *mem_ctx,
                                  const char *domain_name,
                                  int entry_type,
                                  const char *name,
                                  uint32_t id,
                                  struct berval **_bv)
{
    BerElement *ber = NULL;
    int ret;

    ber = ber_alloc_t( LBER_USE_DER );
    if (ber == NULL) {
        return ENOMEM;
    }

    switch (entry_type) {
        case BE_REQ_USER:
            if (name != NULL) {
                ret = ber_printf(ber, "{ee{ss}}", INP_NAME, REQ_FULL,
                                                  domain_name, name);
            } else {
                ret = ber_printf(ber, "{ee{si}}", INP_POSIX_UID, REQ_FULL,
                                                  domain_name, id);
            }
            break;
        case BE_REQ_GROUP:
            if (name != NULL) {
                ret = ber_printf(ber, "{ee{ss}}", INP_NAME, REQ_FULL,
                                                  domain_name, name);
            } else {
                ret = ber_printf(ber, "{ee{si}}", INP_POSIX_GID, REQ_FULL,
                                                  domain_name, id);
            }
            break;
        default:
            ret = EINVAL;
            goto done;
    }
    if (ret == -1) {
        ret = EFAULT;
        goto done;
    }

    ret = talloc_ber_flatten(mem_ctx, ber, _bv);
    if (ret == -1) {
        ret = EFAULT;
        goto done;
    }

    ret = EOK;

done:
    ber_free(ber, 1);

    return ret;
}

/* If the extendend operation is successful it returns the following ASN.1
 * encoded response:
 *
 * ExtdomResponseValue ::= SEQUENCE {
 *    responseType ENUMERATED {
 *        sid (1),
 *        name (2),
 *        posix_user (3),
 *        posix_group (4)
 *    },
 *    data OutputData
 * }
 *
 * OutputData ::= CHOICE {
 *    sid OCTET STRING,
 *    name NameDomainData,
 *    user PosixUser,
 *    group PosixGroup
 * }
 *
 * NameDomainData ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    object_name OCTET STRING
 * }
 *
 * PosixUser ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    user_name OCTET STRING,
 *    uid INTEGER
 *    gid INTEGER
 * }
 *
 * PosixGroup ::= SEQUENCE {
 *    domain_name OCTET STRING,
 *    group_name OCTET STRING,
 *    gid INTEGER
 * }
 *
 * Since we always request the full data set (REQ_FULL), i.e user/group name,
 * domain name and corresponding unix id, only PosixUser (RESP_USER) and
 * PosixGroup (RESP_GROUP) are handled by s2n_response_to_attrs().
 */

struct resp_attrs {
    enum response_types response_type;
    char *domain_name;
    union {
        struct passwd user;
        struct group group;
    } a;
};

static errno_t s2n_response_to_attrs(TALLOC_CTX *mem_ctx,
                                     char *retoid,
                                     struct berval *retdata,
                                     struct resp_attrs **resp_attrs)
{
    BerElement *ber = NULL;
    ber_tag_t tag;
    int ret;
    enum response_types type;
    char *domain_name = NULL;
    char *name = NULL;
    uid_t uid;
    gid_t gid;
    struct resp_attrs *attrs = NULL;

    if (retoid == NULL || retdata == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("Missing OID or data.\n"));
        return EINVAL;
    }

    if (strcmp(retoid, EXOP_SID2NAME_OID) != 0) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Result has wrong OID, expected [%s], got [%s].\n",
              EXOP_SID2NAME_OID, retoid));
        return EINVAL;
    }

    ber = ber_init(retdata);
    if (ber == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("ber_init failed.\n"));
        return EINVAL;
    }

    tag = ber_scanf(ber, "{e", &type);
    if (tag == LBER_ERROR) {
        DEBUG(SSSDBG_OP_FAILURE, ("ber_scanf failed.\n"));
        ret = EINVAL;
        goto done;
    }

    attrs = talloc_zero(mem_ctx, struct resp_attrs);
    if (attrs == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("talloc_zero failed.\n"));
        ret = ENOMEM;
        goto done;
    }

    switch (type) {
        case RESP_USER:
            tag = ber_scanf(ber, "{aaii}}", &domain_name, &name, &uid, &gid);
            if (tag == LBER_ERROR) {
                DEBUG(SSSDBG_OP_FAILURE, ("ber_scanf failed.\n"));
                ret = EINVAL;
                goto done;
            }

            /* Winbind is not consistent with the case of the returned user
             * name. In general all names should be lower case but there are
             * bug in some version of winbind which might lead to upper case
             * letters in the name. To be on the safe side we explicitly
             * lowercase the name. */
            attrs->a.user.pw_name = sss_tc_utf8_str_tolower(attrs, name);
            if (attrs->a.user.pw_name == NULL) {
                DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
                ret = ENOMEM;
                goto done;
            }

            attrs->a.user.pw_uid = uid;
            attrs->a.user.pw_gid = gid;

            break;
        case RESP_GROUP:
            tag = ber_scanf(ber, "{aai}}", &domain_name, &name, &gid);
            if (tag == LBER_ERROR) {
                DEBUG(SSSDBG_OP_FAILURE, ("ber_scanf failed.\n"));
                ret = EINVAL;
                goto done;
            }

            attrs->a.group.gr_name = talloc_strdup(attrs, name);
            if (attrs->a.group.gr_name == NULL) {
                DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
                ret = ENOMEM;
                goto done;
            }

            attrs->a.group.gr_gid = gid;

            break;
        default:
            DEBUG(SSSDBG_OP_FAILURE, ("Unexpected response type [%d].\n",
                                      type));
            ret = EINVAL;
            goto done;
    }

    attrs->response_type = type;
    attrs->domain_name = talloc_strdup(attrs, domain_name);
    if (attrs->domain_name == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("talloc_strdup failed.\n"));
        ret = ENOMEM;
        goto done;
    }

    ret = EOK;

done:
    ber_memfree(domain_name);
    ber_memfree(name);
    ber_free(ber, 1);

    if (ret == EOK) {
        *resp_attrs = attrs;
    } else {
        talloc_free(attrs);
    }

    return ret;
}

struct ipa_s2n_get_user_state {
    struct tevent_context *ev;
    struct sdap_options *opts;
    struct sss_domain_info *dom;
    struct sdap_handle *sh;
    const char **expected_attrs;
};

static void ipa_s2n_get_user_done(struct tevent_req *subreq);

struct tevent_req *ipa_s2n_get_acct_info_send(TALLOC_CTX *mem_ctx,
                                              struct tevent_context *ev,
                                              struct sdap_options *opts,
                                              struct sss_domain_info *dom,
                                              struct sdap_handle *sh,
                                              const char **attrs,
                                              int entry_type,
                                              const char *name,
                                              uint32_t id)
{
    struct ipa_s2n_get_user_state *state;
    struct tevent_req *req;
    struct tevent_req *subreq;
    struct berval *bv_req = NULL;
    int ret = EFAULT;

    if ((name == NULL && id == 0) || (name != NULL && id != 0)) {
        DEBUG(SSSDBG_OP_FAILURE, ("Either a user name or a uid expected, "
                                  "not both or nothing.\n"));
        return NULL;
    }

    req = tevent_req_create(mem_ctx, &state, struct ipa_s2n_get_user_state);
    if (req == NULL) {
        return NULL;
    }

    state->ev = ev;
    state->opts = opts;
    state->dom = dom;
    state->sh = sh;
    state->expected_attrs = attrs;

    ret = s2n_encode_request(state, dom->name, entry_type, name, id, &bv_req);
    if (ret != EOK) {
        goto fail;
    }

    subreq = ipa_s2n_exop_send(state, state->ev, state->sh, bv_req);
    if (subreq == NULL) {
        DEBUG(SSSDBG_OP_FAILURE, ("ipa_s2n_exop_send failed.\n"));
        ret = ENOMEM;
        goto fail;
    }
    tevent_req_set_callback(subreq, ipa_s2n_get_user_done, req);

    return req;

fail:
    tevent_req_error(req, ret);
    tevent_req_post(req, ev);

    return req;
}

static void ipa_s2n_get_user_done(struct tevent_req *subreq)
{
    struct tevent_req *req = tevent_req_callback_data(subreq,
                                                      struct tevent_req);
    struct ipa_s2n_get_user_state *state = tevent_req_data(req,
                                                struct ipa_s2n_get_user_state);
    int ret;
    enum sdap_result result;
    char *retoid = NULL;
    struct berval *retdata = NULL;
    struct resp_attrs *attrs;
    time_t now;
    uint64_t timeout = 10*60*60; /* FIXME: find a better timeout ! */
    const char *homedir = NULL;
    struct sysdb_attrs *user_attrs = NULL;
    char *name;
    char *realm;
    char *upn;

    ret = ipa_s2n_exop_recv(subreq, state, &result, &retoid, &retdata);
    talloc_zfree(subreq);
    if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE, ("s2n exop request failed.\n"));
        goto done;
    }

    ret = s2n_response_to_attrs(state, retoid, retdata, &attrs);
    if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE, ("s2n_response_to_attrs failed.\n"));
        goto done;
    }

    if (!(strcasecmp(state->dom->name, attrs->domain_name) == 0 ||
          (state->dom->flat_name != NULL &&
           strcasecmp(state->dom->flat_name, attrs->domain_name) == 0))) {
        DEBUG(SSSDBG_OP_FAILURE, ("Unexpected domain name returned, "
                                  "expected [%s] or [%s], got [%s].\n",
                     state->dom->name,
                     state->dom->flat_name == NULL ? "" : state->dom->flat_name,
                     attrs->domain_name));
        ret = EINVAL;
        goto done;
    }

    now = time(NULL);

    switch (attrs->response_type) {
        case RESP_USER:
            if (state->dom->subdomain_homedir) {
                homedir =  expand_homedir_template(state,
                                                   state->dom->subdomain_homedir,
                                                   attrs->a.user.pw_name,
                                                   attrs->a.user.pw_uid,
                                                   state->dom->name);
                if (homedir == NULL) {
                    ret = ENOMEM;
                    goto done;
                }
            }

            user_attrs = sysdb_new_attrs(state);
            if (user_attrs == NULL) {
                DEBUG(SSSDBG_OP_FAILURE, ("sysdb_new_attrs failed.\n"));
                ret = ENOMEM;
                goto done;
            }

            /* we always use the fully qualified name for subdomain users */
            name = talloc_asprintf(state, state->dom->names->fq_fmt,
                                   attrs->a.user.pw_name, state->dom->name);
            if (!name) {
                DEBUG(SSSDBG_OP_FAILURE, ("failed to format user name.\n"));
                ret = ENOMEM;
                goto done;
            }

            ret = sysdb_attrs_add_string(user_attrs, SYSDB_NAME_ALIAS, name);
            if (ret != EOK) {
                DEBUG(SSSDBG_OP_FAILURE, ("sysdb_attrs_add_string failed.\n"));
                goto done;
            }

            /* We also have to store a fake UPN here, because otherwise the
             * krb5 child later won't be able to properly construct one as
             * the username is fully qualified but the child doesn't have
             * access to the regex to deconstruct it */
            /* FIXME: The real UPN is available from the PAC, we should get
             * it from there. */
            realm = get_uppercase_realm(state, state->dom->name);
            if (!realm) {
                DEBUG(SSSDBG_OP_FAILURE, ("failed to get realm.\n"));
                ret = ENOMEM;
                goto done;
            }
            upn = talloc_asprintf(state, "%s@%s",
                                  attrs->a.user.pw_name, realm);
            if (!upn) {
                DEBUG(SSSDBG_OP_FAILURE, ("failed to format UPN.\n"));
                ret = ENOMEM;
                goto done;
            }

            ret = sysdb_attrs_add_string(user_attrs, SYSDB_UPN, upn);
            if (ret != EOK) {
                DEBUG(SSSDBG_OP_FAILURE, ("sysdb_attrs_add_string failed.\n"));
                goto done;
            }

            ret = sysdb_store_user(state->dom->sysdb, state->dom, name, NULL,
                                   attrs->a.user.pw_uid, 0, NULL, /* gecos */
                                   homedir, NULL, NULL, user_attrs, NULL,
                                   timeout, now);
            break;
        case RESP_GROUP:
            /* we always use the fully qualified name for subdomain users */
            name = talloc_asprintf(state, state->dom->names->fq_fmt,
                                   attrs->a.group.gr_name, state->dom->name);
            if (!name) {
                DEBUG(SSSDBG_OP_FAILURE, ("failed to format user name,\n"));
                ret = ENOMEM;
                goto done;
            }

            ret = sysdb_store_group(state->dom->sysdb, state->dom, name,
                                    attrs->a.group.gr_gid, NULL, timeout, now);
            break;
        default:
            DEBUG(SSSDBG_OP_FAILURE, ("Unexpected response type [%d].\n",
                                      attrs->response_type));
            ret = EINVAL;
            goto done;
    }


done:
    talloc_free(user_attrs);
    if (ret == EOK) {
        tevent_req_done(req);
    } else {
        tevent_req_error(req, ret);
    }
    return;
}

int ipa_s2n_get_acct_info_recv(struct tevent_req *req)
{
    TEVENT_REQ_RETURN_ON_ERROR(req);

    return EOK;
}