summaryrefslogtreecommitdiff
path: root/src/responder/sudo/sudosrv_get_sudorules.c
blob: 1f4270d491a188a58e7a233a7ade9475f5f2a52c (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
/*
    Authors:
        Pavel Březina <pbrezina@redhat.com>
        Jakub Hrozek <jhrozek@redhat.com>

    Copyright (C) 2011 Red Hat

    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 <stdint.h>
#include <string.h>
#include <talloc.h>

#include "util/util.h"
#include "db/sysdb_sudo.h"
#include "responder/sudo/sudosrv_private.h"

static errno_t sudosrv_get_user(struct sudo_dom_ctx *dctx);

errno_t sudosrv_get_sudorules(struct sudo_dom_ctx *dctx)
{
    errno_t ret;

    dctx->check_provider = true;
    ret = sudosrv_get_user(dctx);
    if (ret == EAGAIN) {
        DEBUG(SSSDBG_TRACE_INTERNAL,
              ("Looking up the user info from Data Provider\n"));
        return EAGAIN;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Error looking up user information [%d]: %s\n", ret, strerror(ret)));
        return ret;
    }

    /* OK, got the user from cache. Try to get the rules. */
    ret = sudosrv_get_rules(dctx->cmd_ctx);
    if (ret == EAGAIN) {
        DEBUG(SSSDBG_TRACE_INTERNAL,
              ("Looking up the sudo rules from Data Provider\n"));
        return EAGAIN;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Error looking up sudo rules [%d]: %s\n", ret, strerror(ret)));
        return ret;
    }

    return EOK;
}

static void sudosrv_dp_send_acct_req_done(struct tevent_req *req);
static void sudosrv_check_user_dp_callback(uint16_t err_maj, uint32_t err_min,
                                           const char *err_msg, void *ptr);

static errno_t sudosrv_get_user(struct sudo_dom_ctx *dctx)
{
    TALLOC_CTX *tmp_ctx = NULL;
    struct sss_domain_info *dom = dctx->domain;
    struct sudo_cmd_ctx *cmd_ctx = dctx->cmd_ctx;
    struct cli_ctx *cli_ctx = dctx->cmd_ctx->cli_ctx;
    struct sysdb_ctx *sysdb;
    struct ldb_result *user;
    time_t cache_expire = 0;
    struct tevent_req *dpreq;
    struct dp_callback_ctx *cb_ctx;
    const char *original_name = NULL;
    char *name = NULL;
    uid_t uid = 0;
    errno_t ret;

    tmp_ctx = talloc_new(NULL);
    if (tmp_ctx == NULL) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
        return ENOMEM;
    }

    while (dom) {
       /* if it is a domainless search, skip domains that require fully
        * qualified names instead */
        while (dom && cmd_ctx->check_next && dom->fqnames) {
            dom = dom->next;
        }

        if (!dom) break;

        /* make sure to update the dctx if we changed domain */
        dctx->domain = dom;

        talloc_free(name);
        name = sss_get_cased_name(tmp_ctx, cmd_ctx->username,
                                  dom->case_sensitive);
        if (name == NULL) {
            DEBUG(SSSDBG_CRIT_FAILURE, ("Out of memory\n"));
            ret = ENOMEM;
            goto done;
        }

        DEBUG(SSSDBG_FUNC_DATA, ("Requesting info about [%s@%s]\n",
              name, dom->name));

        sysdb = dctx->domain->sysdb;
        if (sysdb == NULL) {
             DEBUG(SSSDBG_CRIT_FAILURE,
                   ("sysdb context not found for this domain!\n"));
             ret = EIO;
             goto done;
        }

        ret = sysdb_getpwnam(dctx, sysdb, name, &user);
        if (ret != EOK) {
            DEBUG(SSSDBG_OP_FAILURE,
                  ("Failed to make request to our cache!\n"));
            ret = EIO;
            goto done;
        }

        if (user->count > 1) {
            DEBUG(SSSDBG_CRIT_FAILURE,
                  ("getpwnam call returned more than one result !?!\n"));
            ret = EIO;
            goto done;
        }

        if (user->count == 0 && !dctx->check_provider) {
            /* if a multidomain search, try with next */
            if (cmd_ctx->check_next) {
                dctx->check_provider = true;
                dom = dom->next;
                if (dom) continue;
            }

            DEBUG(SSSDBG_MINOR_FAILURE, ("No results for getpwnam call\n"));
            ret = ENOENT;
            goto done;
        }

        /* One result found, check cache expiry */
        if (user->count == 1) {
            cache_expire = ldb_msg_find_attr_as_uint64(user->msgs[0],
                                                       SYSDB_CACHE_EXPIRE, 0);
        }

        /* If cache miss and we haven't checked DP yet OR the entry is
         * outdated, go to DP */
        if ((user->count == 0 || cache_expire < time(NULL))
            && dctx->check_provider) {
            dpreq = sss_dp_get_account_send(cli_ctx, cli_ctx->rctx,
                                            dom, false, SSS_DP_INITGROUPS,
                                            cmd_ctx->username, 0, NULL);
            if (!dpreq) {
                DEBUG(SSSDBG_CRIT_FAILURE,
                      ("Out of memory sending data provider request\n"));
                ret = ENOMEM;
                goto done;
            }

            cb_ctx = talloc_zero(cli_ctx, struct dp_callback_ctx);
            if(!cb_ctx) {
                talloc_zfree(dpreq);
                ret = ENOMEM;
                goto done;
            }

            cb_ctx->callback = sudosrv_check_user_dp_callback;
            cb_ctx->ptr = dctx;
            cb_ctx->cctx = cli_ctx;
            cb_ctx->mem_ctx = cli_ctx;

            tevent_req_set_callback(dpreq, sudosrv_dp_send_acct_req_done, cb_ctx);

            /* tell caller we are in an async call */
            ret = EAGAIN;
            goto done;
        }

        /* check uid */
        uid = ldb_msg_find_attr_as_int(user->msgs[0], SYSDB_UIDNUM, 0);
        if (uid != cmd_ctx->uid) {
            /* if a multidomain search, try with next */
            if (cmd_ctx->check_next) {
                dctx->check_provider = true;
                dom = dom->next;
                if (dom) continue;
            }

            DEBUG(SSSDBG_MINOR_FAILURE, ("UID does not match\n"));
            ret = ENOENT;
            goto done;
        }

        /* user is stored in cache, remember cased and original name */
        original_name = ldb_msg_find_attr_as_string(user->msgs[0],
                                                    SYSDB_NAME, NULL);
        if (name == NULL) {
            DEBUG(SSSDBG_CRIT_FAILURE, ("A user with no name?\n"));
            ret = EFAULT;
            goto done;
        }

        cmd_ctx->cased_username = talloc_move(cmd_ctx, &name);
        cmd_ctx->orig_username = talloc_strdup(cmd_ctx, original_name);
        if (cmd_ctx->orig_username == NULL) {
            DEBUG(SSSDBG_CRIT_FAILURE, ("Out of memory\n"));
            ret = ENOMEM;
            goto done;
        }

        /* and set domain */
        cmd_ctx->domain = dom;

        DEBUG(SSSDBG_TRACE_FUNC, ("Returning info for user [%s@%s]\n",
              cmd_ctx->username, dctx->domain->name));
        ret = EOK;
        goto done;
    }

    ret = ENOENT;
done:
    talloc_free(tmp_ctx);
    return ret;
}

static void sudosrv_dp_send_acct_req_done(struct tevent_req *req)
{
    struct dp_callback_ctx *cb_ctx =
            tevent_req_callback_data(req, struct dp_callback_ctx);

    errno_t ret;
    dbus_uint16_t err_maj;
    dbus_uint32_t err_min;
    char *err_msg;

    ret = sss_dp_get_account_recv(cb_ctx->mem_ctx, req,
                                  &err_maj, &err_min,
                                  &err_msg);
    talloc_zfree(req);
    if (ret != EOK) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("Fatal error, killing connection!\n"));
        talloc_free(cb_ctx->cctx);
        return;
    }

    cb_ctx->callback(err_maj, err_min, err_msg, cb_ctx->ptr);
}

static void sudosrv_check_user_dp_callback(uint16_t err_maj, uint32_t err_min,
                                           const char *err_msg, void *ptr)
{
    errno_t ret;
    struct sudo_dom_ctx *dctx = talloc_get_type(ptr, struct sudo_dom_ctx);

    if (err_maj) {
        DEBUG(SSSDBG_CRIT_FAILURE,
             ("Unable to get information from Data Provider\n"
              "Error: %u, %u, %s\n",
              (unsigned int)err_maj, (unsigned int)err_min, err_msg));
    }

    DEBUG(SSSDBG_TRACE_INTERNAL,
          ("Data Provider returned, check the cache again\n"));
    dctx->check_provider = false;
    ret = sudosrv_get_user(dctx);
    if (ret == EAGAIN) {
        goto done;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Could not look up the user [%d]: %s\n",
              ret, strerror(ret)));
        sudosrv_cmd_done(dctx->cmd_ctx, ret);
        return;
    }

    DEBUG(SSSDBG_TRACE_INTERNAL, ("Looking up sudo rules..\n"));
    ret = sudosrv_get_rules(dctx->cmd_ctx);
    if (ret == EAGAIN) {
        goto done;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Error getting sudo rules [%d]: %s\n",
              ret, strerror(ret)));
        sudosrv_cmd_done(dctx->cmd_ctx, EIO);
        return;
    }

done:
    sudosrv_cmd_done(dctx->cmd_ctx, ret);
}

static errno_t sudosrv_get_sudorules_from_cache(struct sudo_cmd_ctx *cmd_ctx);
static void
sudosrv_get_sudorules_dp_callback(uint16_t err_maj, uint32_t err_min,
                                  const char *err_msg, void *ptr);
static void
sudosrv_dp_req_done(struct tevent_req *req);

errno_t sudosrv_get_rules(struct sudo_cmd_ctx *cmd_ctx)
{
    struct tevent_req *dpreq;
    struct dp_callback_ctx *cb_ctx = NULL;

    switch (cmd_ctx->type) {
        case SSS_DP_SUDO_DEFAULTS:
            DEBUG(SSSDBG_TRACE_FUNC, ("Retrieving default options "
                  "for [%s] from [%s]\n", cmd_ctx->orig_username,
                  cmd_ctx->domain->name));
            break;
        case SSS_DP_SUDO_USER:
            DEBUG(SSSDBG_TRACE_FUNC, ("Retrieving rules "
                  "for [%s] from [%s]\n", cmd_ctx->orig_username,
                  cmd_ctx->domain->name));
            break;
    }

    dpreq = sss_dp_get_sudoers_send(cmd_ctx->cli_ctx,
                                    cmd_ctx->cli_ctx->rctx,
                                    cmd_ctx->domain, false,
                                    cmd_ctx->type,
                                    cmd_ctx->orig_username);
    if (dpreq == NULL) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("Cannot issue DP request.\n"));
        return EIO;
    }

    cb_ctx = talloc_zero(cmd_ctx, struct dp_callback_ctx);
    if (!cb_ctx) {
        talloc_zfree(dpreq);
        return ENOMEM;
    }

    cb_ctx->callback = sudosrv_get_sudorules_dp_callback;
    cb_ctx->ptr = cmd_ctx;
    cb_ctx->cctx = cmd_ctx->cli_ctx;
    cb_ctx->mem_ctx = cmd_ctx;

    tevent_req_set_callback(dpreq, sudosrv_dp_req_done, cb_ctx);
    return EAGAIN;
}

static void
sudosrv_dp_req_done(struct tevent_req *req)
{
    struct dp_callback_ctx *cb_ctx =
        tevent_req_callback_data(req, struct dp_callback_ctx);
    struct cli_ctx *cli_ctx = talloc_get_type(cb_ctx->cctx, struct cli_ctx);

    errno_t ret;
    dbus_uint16_t err_maj;
    dbus_uint32_t err_min;
    char *err_msg;

    ret = sss_dp_get_sudoers_recv(cb_ctx->mem_ctx, req,
                                  &err_maj, &err_min,
                                  &err_msg);
    talloc_free(req);
    if (ret != EOK) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("Fatal error, killing connection!\n"));
        talloc_free(cli_ctx);
        return;
    }

    cb_ctx->callback(err_maj, err_min, err_msg, cb_ctx->ptr);
}

static void
sudosrv_get_sudorules_dp_callback(uint16_t err_maj, uint32_t err_min,
                                  const char *err_msg, void *ptr)
{
    struct sudo_cmd_ctx *cmd_ctx = talloc_get_type(ptr, struct sudo_cmd_ctx);
    errno_t ret;

    if (err_maj) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("Unable to get information from Data Provider\n"
               "Error: %u, %u, %s\n"
               "Will try to return what we have in cache\n",
               (unsigned int)err_maj, (unsigned int)err_min, err_msg));
    }

    DEBUG(SSSDBG_TRACE_INTERNAL, ("About to get sudo rules from cache\n"));
    ret = sudosrv_get_sudorules_from_cache(cmd_ctx);
    if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Failed to make a request to our cache [%d]: %s\n",
              ret, strerror(ret)));
        sudosrv_cmd_done(cmd_ctx, EIO);
        return;
    }

    sudosrv_cmd_done(cmd_ctx, ret);
}

static errno_t sudosrv_get_sudorules_query_cache(TALLOC_CTX *mem_ctx,
                                                 struct sysdb_ctx *sysdb,
                                                 enum sss_dp_sudo_type type,
                                                 const char *username,
                                                 uid_t uid,
                                                 char **groupnames,
                                                 struct sysdb_attrs ***_rules,
                                                 size_t *_count);

static errno_t sudosrv_get_sudorules_from_cache(struct sudo_cmd_ctx *cmd_ctx)
{
    TALLOC_CTX *tmp_ctx;
    errno_t ret;
    struct sysdb_ctx *sysdb;
    char **groupnames = NULL;
    const char *debug_name = NULL;

    if (cmd_ctx->domain == NULL) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("Domain is not set!\n"));
        return EFAULT;
    }

    tmp_ctx = talloc_new(NULL);
    if (tmp_ctx == NULL) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("talloc_new() failed\n"));
        return ENOMEM;
    }

    sysdb = cmd_ctx->domain->sysdb;
    if (sysdb == NULL) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("sysdb context not found for this domain!\n"));
        ret = EIO;
        goto done;
    }

    switch (cmd_ctx->type) {
    case SSS_DP_SUDO_USER:
        debug_name = cmd_ctx->cased_username;
        ret = sysdb_get_sudo_user_info(tmp_ctx, cmd_ctx->orig_username, sysdb,
                                       NULL, &groupnames);
        if (ret != EOK) {
            DEBUG(SSSDBG_CRIT_FAILURE,
                 ("Unable to retrieve user info [%d]: %s\n", strerror(ret)));
            goto done;
        }
        break;
    case SSS_DP_SUDO_DEFAULTS:
        debug_name = "<default options>";
        break;
    }

    ret = sudosrv_get_sudorules_query_cache(cmd_ctx, sysdb, cmd_ctx->type,
                                            cmd_ctx->orig_username,
                                            cmd_ctx->uid, groupnames,
                                            &cmd_ctx->rules, &cmd_ctx->num_rules);
    if (ret != EOK) {
        DEBUG(SSSDBG_CRIT_FAILURE,
             ("Unable to retrieve sudo rules [%d]: %s\n", strerror(ret)));
        goto done;
    }

    DEBUG(SSSDBG_TRACE_FUNC, ("Returning rules for [%s@%s]\n",
          debug_name, cmd_ctx->domain->name));

    ret = EOK;
done:
    talloc_free(tmp_ctx);
    return ret;
}

static errno_t
sort_sudo_rules(struct sysdb_attrs **rules, size_t count);

static errno_t sudosrv_get_sudorules_query_cache(TALLOC_CTX *mem_ctx,
                                                 struct sysdb_ctx *sysdb,
                                                 enum sss_dp_sudo_type type,
                                                 const char *username,
                                                 uid_t uid,
                                                 char **groupnames,
                                                 struct sysdb_attrs ***_rules,
                                                 size_t *_count)
{
    TALLOC_CTX *tmp_ctx;
    char *filter;
    errno_t ret;
    size_t count;
    struct sysdb_attrs **rules;
    struct ldb_message **msgs;
    unsigned int flags = SYSDB_SUDO_FILTER_NONE;
    const char *attrs[] = { SYSDB_OBJECTCLASS
                            SYSDB_SUDO_CACHE_AT_OC,
                            SYSDB_SUDO_CACHE_AT_CN,
                            SYSDB_SUDO_CACHE_AT_USER,
                            SYSDB_SUDO_CACHE_AT_HOST,
                            SYSDB_SUDO_CACHE_AT_COMMAND,
                            SYSDB_SUDO_CACHE_AT_OPTION,
                            SYSDB_SUDO_CACHE_AT_RUNASUSER,
                            SYSDB_SUDO_CACHE_AT_RUNASGROUP,
                            SYSDB_SUDO_CACHE_AT_NOTBEFORE,
                            SYSDB_SUDO_CACHE_AT_NOTAFTER,
                            SYSDB_SUDO_CACHE_AT_ORDER,
                            NULL };

    tmp_ctx = talloc_new(NULL);
    if (tmp_ctx == NULL) return ENOMEM;

    switch (type) {
    case SSS_DP_SUDO_DEFAULTS:
        flags = SYSDB_SUDO_FILTER_INCLUDE_DFL;
        break;
    case SSS_DP_SUDO_USER:
        flags =   SYSDB_SUDO_FILTER_USERINFO | SYSDB_SUDO_FILTER_INCLUDE_ALL;
        break;
    }
    ret = sysdb_get_sudo_filter(tmp_ctx, username, uid, groupnames,
                                flags, &filter);
    if (ret != EOK) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("Could not construct the search filter [%d]: %s\n",
               ret, strerror(ret)));
        goto done;
    }

    DEBUG(SSSDBG_FUNC_DATA, ("Searching sysdb with [%s]\n", filter));

    ret = sysdb_search_custom(tmp_ctx, sysdb, filter,
                              SUDORULE_SUBDIR, attrs,
                              &count, &msgs);
    if (ret != EOK && ret != ENOENT) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("Error looking up SUDO rules"));
        goto done;
    } if (ret == ENOENT) {
       *_rules = NULL;
       *_count = 0;
       ret = EOK;
       goto done;
    }

    ret = sysdb_msg2attrs(tmp_ctx, count, msgs, &rules);
    if (ret != EOK) {
        DEBUG(SSSDBG_CRIT_FAILURE,
              ("Could not convert ldb message to sysdb_attrs\n"));
        goto done;
    }

    ret = sort_sudo_rules(rules, count);
    if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE,
              ("Could not sort rules by sudoOrder\n"));
        goto done;
    }

    *_rules = talloc_steal(mem_ctx, rules);
    *_count = count;

    ret = EOK;
done:
    talloc_free(tmp_ctx);
    return ret;
}

static int
sudo_order_cmp_fn(const void *a, const void *b)
{
    struct sysdb_attrs *r1, *r2;
    uint32_t o1, o2;
    int ret;

    r1 = * (struct sysdb_attrs * const *) a;
    r2 = * (struct sysdb_attrs * const *) b;
    if (!r1 || !r2) {
        DEBUG(SSSDBG_CRIT_FAILURE, ("BUG: Wrong data?\n"));
        return 0;
    }

    ret = sysdb_attrs_get_uint32_t(r1, SYSDB_SUDO_CACHE_AT_ORDER, &o1);
    if (ret == ENOENT) {
        /* man sudoers-ldap: If the sudoOrder attribute is not present,
         * a value of 0 is assumed */
        o1 = 0;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE, ("Cannot get sudoOrder value\n"));
        return 0;
    }

    ret = sysdb_attrs_get_uint32_t(r2, SYSDB_SUDO_CACHE_AT_ORDER, &o2);
    if (ret == ENOENT) {
        /* man sudoers-ldap: If the sudoOrder attribute is not present,
         * a value of 0 is assumed */
        o2 = 0;
    } else if (ret != EOK) {
        DEBUG(SSSDBG_OP_FAILURE, ("Cannot get sudoOrder value\n"));
        return 0;
    }

    if (o1 > o2) {
        return 1;
    } else if (o1 < o2) {
        return -1;
    }

    return 0;
}

static errno_t
sort_sudo_rules(struct sysdb_attrs **rules, size_t count)
{
    qsort(rules, count, sizeof(struct sysdb_attrs *),
          sudo_order_cmp_fn);
    return EOK;
}