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8322 nl: misleading-indentation
[unleashed/tickless.git] / usr / src / cmd / idmap / idmapd / server.c
blobe27690a160997898d0d55f019b8795a16c5459ab
1 /*
2 * CDDL HEADER START
3 *
4 * The contents of this file are subject to the terms of the
5 * Common Development and Distribution License (the "License").
6 * You may not use this file except in compliance with the License.
7 *
8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9 * or http://www.opensolaris.org/os/licensing.
10 * See the License for the specific language governing permissions
11 * and limitations under the License.
12 *
13 * When distributing Covered Code, include this CDDL HEADER in each
14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15 * If applicable, add the following below this CDDL HEADER, with the
16 * fields enclosed by brackets "[]" replaced with your own identifying
17 * information: Portions Copyright [yyyy] [name of copyright owner]
18 *
19 * CDDL HEADER END
20 */
21 /*
22 * Copyright (c) 2007, 2010, Oracle and/or its affiliates. All rights reserved.
23 */
24
25
26 /*
27 * Service routines
28 */
29
30 #include "idmapd.h"
31 #include "idmap_priv.h"
32 #include "nldaputils.h"
33 #include <signal.h>
34 #include <thread.h>
35 #include <string.h>
36 #include <strings.h>
37 #include <errno.h>
38 #include <assert.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41 #include <sys/sid.h>
42 #include <ucred.h>
43 #include <pwd.h>
44 #include <auth_attr.h>
45 #include <secdb.h>
46 #include <sys/u8_textprep.h>
47 #include <note.h>
48
49 #define _VALIDATE_LIST_CB_DATA(col, val, siz)\
50 retcode = validate_list_cb_data(cb_data, argc, argv, col,\
51 (uchar_t **)val, siz);\
52 if (retcode == IDMAP_NEXT) {\
53 result->retcode = IDMAP_NEXT;\
54 return (0);\
55 } else if (retcode < 0) {\
56 result->retcode = retcode;\
57 return (1);\
58 }
59
60 #define PROCESS_LIST_SVC_SQL(rcode, db, dbname, sql, limit, flag, cb, res, len)\
61 rcode = process_list_svc_sql(db, dbname, sql, limit, flag, cb, res);\
62 if (rcode == IDMAP_ERR_BUSY)\
63 res->retcode = IDMAP_ERR_BUSY;\
64 else if (rcode == IDMAP_SUCCESS && len == 0)\
65 res->retcode = IDMAP_ERR_NOTFOUND;
66
67
68 #define STRDUP_OR_FAIL(to, from) \
69 if ((from) == NULL) \
70 to = NULL; \
71 else { \
72 if ((to = strdup(from)) == NULL) \
73 return (1); \
74 }
75
76 #define STRDUP_CHECK(to, from) \
77 if ((from) != NULL) { \
78 to = strdup(from); \
79 if (to == NULL) { \
80 result->retcode = IDMAP_ERR_MEMORY; \
81 goto out; \
82 } \
83 }
84
85 /* ARGSUSED */
86 bool_t
87 idmap_null_1_svc(void *result, struct svc_req *rqstp)
88 {
89 return (TRUE);
90 }
91
92 /*
93 * RPC layer allocates empty strings to replace NULL char *.
94 * This utility function frees these empty strings.
95 */
96 static
97 void
98 sanitize_mapping_request(idmap_mapping *req)
99 {
100 if (EMPTY_STRING(req->id1name)) {
101 free(req->id1name);
102 req->id1name = NULL;
103 }
104 if (EMPTY_STRING(req->id1domain)) {
105 free(req->id1domain);
106 req->id1domain = NULL;
107 }
108 if (EMPTY_STRING(req->id2name)) {
109 free(req->id2name);
110 req->id2name = NULL;
111 }
112 if (EMPTY_STRING(req->id2domain)) {
113 free(req->id2domain);
114 req->id2domain = NULL;
115 }
116 req->direction = _IDMAP_F_DONE;
117 }
118
119 static
120 int
121 validate_mapped_id_by_name_req(idmap_mapping *req)
122 {
123 int e;
124
125 if (IS_ID_UID(req->id1) || IS_ID_GID(req->id1))
126 return (IDMAP_SUCCESS);
127
128 if (IS_ID_SID(req->id1)) {
129 if (!EMPTY_STRING(req->id1name) &&
130 u8_validate(req->id1name, strlen(req->id1name),
131 NULL, U8_VALIDATE_ENTIRE, &e) < 0)
132 return (IDMAP_ERR_BAD_UTF8);
133 if (!EMPTY_STRING(req->id1domain) &&
134 u8_validate(req->id1domain, strlen(req->id1domain),
135 NULL, U8_VALIDATE_ENTIRE, &e) < 0)
136 return (IDMAP_ERR_BAD_UTF8);
137 }
138
139 return (IDMAP_SUCCESS);
140 }
141
142 static
143 int
144 validate_rule(idmap_namerule *rule)
145 {
146 int e;
147
148 if (!EMPTY_STRING(rule->winname) &&
149 u8_validate(rule->winname, strlen(rule->winname),
150 NULL, U8_VALIDATE_ENTIRE, &e) < 0)
151 return (IDMAP_ERR_BAD_UTF8);
152
153 if (!EMPTY_STRING(rule->windomain) &&
154 u8_validate(rule->windomain, strlen(rule->windomain),
155 NULL, U8_VALIDATE_ENTIRE, &e) < 0)
156 return (IDMAP_ERR_BAD_UTF8);
157
158 return (IDMAP_SUCCESS);
159
160 }
161
162 static
163 bool_t
164 validate_rules(idmap_update_batch *batch)
165 {
166 idmap_update_op *up;
167 int i;
168
169 for (i = 0; i < batch->idmap_update_batch_len; i++) {
170 up = &(batch->idmap_update_batch_val[i]);
171 if (validate_rule(&(up->idmap_update_op_u.rule))
172 != IDMAP_SUCCESS)
173 return (IDMAP_ERR_BAD_UTF8);
174 }
175
176 return (IDMAP_SUCCESS);
177 }
178
179 /* ARGSUSED */
180 bool_t
181 idmap_get_mapped_ids_1_svc(idmap_mapping_batch batch,
182 idmap_ids_res *result, struct svc_req *rqstp)
183 {
184 sqlite *cache = NULL, *db = NULL;
185 lookup_state_t state;
186 idmap_retcode retcode;
187 uint_t i;
188 idmap_mapping *req;
189 idmap_id_res *res;
190 boolean_t any_tracing;
191
192 /* Init */
193 (void) memset(result, 0, sizeof (*result));
194 (void) memset(&state, 0, sizeof (state));
195
196 /* Return success if nothing was requested */
197 if (batch.idmap_mapping_batch_len < 1)
198 goto out;
199
200 /* Get cache handle */
201 result->retcode = get_cache_handle(&cache);
202 if (result->retcode != IDMAP_SUCCESS)
203 goto out;
204 state.cache = cache;
205
206 /* Get db handle */
207 result->retcode = get_db_handle(&db);
208 if (result->retcode != IDMAP_SUCCESS)
209 goto out;
210 state.db = db;
211
212 /* Allocate result array */
213 result->ids.ids_val = calloc(batch.idmap_mapping_batch_len,
214 sizeof (idmap_id_res));
215 if (result->ids.ids_val == NULL) {
216 idmapdlog(LOG_ERR, "Out of memory");
217 result->retcode = IDMAP_ERR_MEMORY;
218 goto out;
219 }
220 result->ids.ids_len = batch.idmap_mapping_batch_len;
221
222 /* Allocate hash table to check for duplicate sids */
223 state.sid_history = calloc(batch.idmap_mapping_batch_len,
224 sizeof (*state.sid_history));
225 if (state.sid_history == NULL) {
226 idmapdlog(LOG_ERR, "Out of memory");
227 result->retcode = IDMAP_ERR_MEMORY;
228 goto out;
229 }
230 state.sid_history_size = batch.idmap_mapping_batch_len;
231 for (i = 0; i < state.sid_history_size; i++) {
232 state.sid_history[i].key = state.sid_history_size;
233 state.sid_history[i].next = state.sid_history_size;
234 }
235 state.batch = &batch;
236 state.result = result;
237
238 /* Get directory-based name mapping info */
239 result->retcode = load_cfg_in_state(&state);
240 if (result->retcode != IDMAP_SUCCESS)
241 goto out;
242
243 /* Init our 'done' flags */
244 state.sid2pid_done = state.pid2sid_done = TRUE;
245
246 any_tracing = B_FALSE;
247
248 /* First stage */
249 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
250 req = &batch.idmap_mapping_batch_val[i];
251 res = &result->ids.ids_val[i];
252 if (TRACING(req))
253 any_tracing = B_TRUE;
254 state.curpos = i;
255 (void) sanitize_mapping_request(req);
256 TRACE(req, res, "Start mapping");
257 if (IS_ID_SID(req->id1)) {
258 retcode = sid2pid_first_pass(
259 &state,
260 req,
261 res);
262 } else if (IS_ID_UID(req->id1)) {
263 retcode = pid2sid_first_pass(
264 &state,
265 req,
266 res, 1);
267 } else if (IS_ID_GID(req->id1)) {
268 retcode = pid2sid_first_pass(
269 &state,
270 req,
271 res, 0);
272 } else {
273 res->retcode = IDMAP_ERR_IDTYPE;
274 continue;
275 }
276 if (IDMAP_FATAL_ERROR(retcode)) {
277 result->retcode = retcode;
278 goto out;
279 }
280 }
281
282 /* Check if we are done */
283 if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE)
284 goto out;
285
286 /*
287 * native LDAP lookups:
288 * pid2sid:
289 * - nldap or mixed mode. Lookup nldap by pid or unixname to get
290 * winname.
291 * sid2pid:
292 * - nldap mode. Got winname and sid (either given or found in
293 * name_cache). Lookup nldap by winname to get pid and
294 * unixname.
295 */
296 if (state.nldap_nqueries) {
297 retcode = nldap_lookup_batch(&state, &batch, result);
298 if (IDMAP_FATAL_ERROR(retcode)) {
299 TRACE(req, res, "Native LDAP lookup error=%d", retcode);
300 result->retcode = retcode;
301 goto out;
302 }
303 if (any_tracing) {
304 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
305 res = &result->ids.ids_val[i];
306 req = &batch.idmap_mapping_batch_val[i];
307 if (IDMAP_ERROR(res->retcode)) {
308 TRACE(req, res,
309 "Native LDAP lookup error=%d",
310 res->retcode);
311 } else {
312 TRACE(req, res, "Native LDAP lookup");
313 }
314 }
315 }
316 }
317
318 /*
319 * AD lookups:
320 * pid2sid:
321 * - nldap or mixed mode. Got winname from nldap lookup.
322 * winname2sid could not be resolved locally. Lookup AD
323 * by winname to get sid.
324 * - ad mode. Got unixname. Lookup AD by unixname to get
325 * winname and sid.
326 * sid2pid:
327 * - ad or mixed mode. Lookup AD by sid or winname to get
328 * winname, sid and unixname.
329 * - any mode. Got either sid or winname but not both. Lookup
330 * AD by sid or winname to get winname, sid.
331 */
332 if (state.ad_nqueries) {
333 retcode = ad_lookup_batch(&state, &batch, result);
334 if (IDMAP_FATAL_ERROR(retcode)) {
335 TRACE(req, res, "AD lookup error=%d", retcode);
336 result->retcode = retcode;
337 goto out;
338 }
339 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
340 res = &result->ids.ids_val[i];
341 req = &batch.idmap_mapping_batch_val[i];
342 if (res->retcode == IDMAP_ERR_DOMAIN_NOTFOUND &&
343 req->id1.idmap_id_u.sid.prefix != NULL &&
344 req->id1name != NULL) {
345 /*
346 * If AD lookup failed Domain Not Found but
347 * we have a winname and SID, it means that
348 * - LSA succeeded
349 * - it's a request a cross-forest trust
350 * and
351 * - we were looking for directory-based
352 * mapping information.
353 * In that case, we're OK, just go on.
354 *
355 * If this seems more convoluted than it
356 * should be, it is - really, we probably
357 * shouldn't even be attempting AD lookups
358 * in this situation, but that's a more
359 * intricate cleanup that will have to wait
360 * for later.
361 */
362 res->retcode = IDMAP_SUCCESS;
363 TRACE(req, res,
364 "AD lookup - domain not found (ignored)");
365 continue;
366 }
367 }
368 }
369
370 /*
371 * native LDAP lookups:
372 * sid2pid:
373 * - nldap mode. Got winname and sid from AD lookup. Lookup nldap
374 * by winname to get pid and unixname.
375 */
376 if (state.nldap_nqueries) {
377 retcode = nldap_lookup_batch(&state, &batch, result);
378 if (IDMAP_FATAL_ERROR(retcode)) {
379 TRACE(req, res, "Native LDAP lookup error=%d", retcode);
380 result->retcode = retcode;
381 goto out;
382 }
383 if (any_tracing) {
384 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
385 res = &result->ids.ids_val[i];
386 req = &batch.idmap_mapping_batch_val[i];
387 TRACE(req, res, "Native LDAP lookup");
388 }
389 }
390 }
391
392 /* Reset 'done' flags */
393 state.sid2pid_done = state.pid2sid_done = TRUE;
394
395 /* Second stage */
396 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
397 req = &batch.idmap_mapping_batch_val[i];
398 res = &result->ids.ids_val[i];
399 state.curpos = i;
400 if (IS_ID_SID(req->id1)) {
401 retcode = sid2pid_second_pass(
402 &state,
403 req,
404 res);
405 } else if (IS_ID_UID(req->id1)) {
406 retcode = pid2sid_second_pass(
407 &state,
408 req,
409 res, 1);
410 } else if (IS_ID_GID(req->id1)) {
411 retcode = pid2sid_second_pass(
412 &state,
413 req,
414 res, 0);
415 } else {
416 /* First stage has already set the error */
417 continue;
418 }
419 if (IDMAP_FATAL_ERROR(retcode)) {
420 result->retcode = retcode;
421 goto out;
422 }
423 }
424
425 /* Check if we are done */
426 if (state.sid2pid_done == TRUE && state.pid2sid_done == TRUE)
427 goto out;
428
429 /* Reset our 'done' flags */
430 state.sid2pid_done = state.pid2sid_done = TRUE;
431
432 /* Update cache in a single transaction */
433 if (sql_exec_no_cb(cache, IDMAP_CACHENAME, "BEGIN TRANSACTION;")
434 != IDMAP_SUCCESS)
435 goto out;
436
437 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
438 req = &batch.idmap_mapping_batch_val[i];
439 res = &result->ids.ids_val[i];
440 state.curpos = i;
441 if (IS_ID_SID(req->id1)) {
442 (void) update_cache_sid2pid(
443 &state,
444 req,
445 res);
446 } else if ((IS_ID_UID(req->id1)) ||
447 (IS_ID_GID(req->id1))) {
448 (void) update_cache_pid2sid(
449 &state,
450 req,
451 res);
452 }
453 }
454
455 /* Commit if we have at least one successful update */
456 if (state.sid2pid_done == FALSE || state.pid2sid_done == FALSE)
457 (void) sql_exec_no_cb(cache, IDMAP_CACHENAME,
458 "COMMIT TRANSACTION;");
459 else
460 (void) sql_exec_no_cb(cache, IDMAP_CACHENAME,
461 "END TRANSACTION;");
462
463 out:
464 cleanup_lookup_state(&state);
465 if (IDMAP_ERROR(result->retcode)) {
466 if (any_tracing) {
467 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
468 req = &batch.idmap_mapping_batch_val[i];
469 res = &result->ids.ids_val[i];
470 TRACE(req, res,
471 "Failure code %d", result->retcode);
472 }
473 }
474 xdr_free(xdr_idmap_ids_res, (caddr_t)result);
475 result->ids.ids_len = 0;
476 result->ids.ids_val = NULL;
477 } else {
478 if (any_tracing) {
479 for (i = 0; i < batch.idmap_mapping_batch_len; i++) {
480 req = &batch.idmap_mapping_batch_val[i];
481 res = &result->ids.ids_val[i];
482 TRACE(req, res, "Done");
483 }
484 }
485 }
486 result->retcode = idmap_stat4prot(result->retcode);
487
488 for (i = 0; i < result->ids.ids_len; i++) {
489 req = &batch.idmap_mapping_batch_val[i];
490 res = &result->ids.ids_val[i];
491
492 if (!(req->flag & IDMAP_REQ_FLG_MAPPING_INFO) &&
493 res->retcode == IDMAP_SUCCESS)
494 idmap_how_clear(&res->info.how);
495 }
496 return (TRUE);
497 }
498
499
500 /* ARGSUSED */
501 static
502 int
503 list_mappings_cb(void *parg, int argc, char **argv, char **colnames)
504 {
505 list_cb_data_t *cb_data;
506 char *str;
507 idmap_mappings_res *result;
508 idmap_retcode retcode;
509 int w2u, u2w;
510 char *end;
511 static int validated_column_names = 0;
512 idmap_how *how;
513
514 cb_data = (list_cb_data_t *)parg;
515
516 if (!validated_column_names) {
517 assert(strcmp(colnames[0], "rowid") == 0);
518 assert(strcmp(colnames[1], "sidprefix") == 0);
519 assert(strcmp(colnames[2], "rid") == 0);
520 assert(strcmp(colnames[3], "pid") == 0);
521 assert(strcmp(colnames[4], "w2u") == 0);
522 assert(strcmp(colnames[5], "u2w") == 0);
523 assert(strcmp(colnames[6], "windomain") == 0);
524 assert(strcmp(colnames[7], "canon_winname") == 0);
525 assert(strcmp(colnames[8], "unixname") == 0);
526 assert(strcmp(colnames[9], "is_user") == 0);
527 assert(strcmp(colnames[10], "is_wuser") == 0);
528 assert(strcmp(colnames[11], "map_type") == 0);
529 assert(strcmp(colnames[12], "map_dn") == 0);
530 assert(strcmp(colnames[13], "map_attr") == 0);
531 assert(strcmp(colnames[14], "map_value") == 0);
532 assert(strcmp(colnames[15], "map_windomain") == 0);
533 assert(strcmp(colnames[16], "map_winname") == 0);
534 assert(strcmp(colnames[17], "map_unixname") == 0);
535 assert(strcmp(colnames[18], "map_is_nt4") == 0);
536 validated_column_names = 1;
537 }
538
539 result = (idmap_mappings_res *)cb_data->result;
540
541 _VALIDATE_LIST_CB_DATA(19, &result->mappings.mappings_val,
542 sizeof (idmap_mapping));
543
544 result->mappings.mappings_len++;
545
546 if ((str = strdup(argv[1])) == NULL)
547 return (1);
548 result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.prefix =
549 str;
550 result->mappings.mappings_val[cb_data->next].id1.idmap_id_u.sid.rid =
551 strtoul(argv[2], &end, 10);
552 result->mappings.mappings_val[cb_data->next].id1.idtype =
553 strtol(argv[10], &end, 10) ? IDMAP_USID : IDMAP_GSID;
554
555 result->mappings.mappings_val[cb_data->next].id2.idmap_id_u.uid =
556 strtoul(argv[3], &end, 10);
557 result->mappings.mappings_val[cb_data->next].id2.idtype =
558 strtol(argv[9], &end, 10) ? IDMAP_UID : IDMAP_GID;
559
560 w2u = argv[4] ? strtol(argv[4], &end, 10) : 0;
561 u2w = argv[5] ? strtol(argv[5], &end, 10) : 0;
562
563 if (w2u > 0 && u2w == 0)
564 result->mappings.mappings_val[cb_data->next].direction =
565 IDMAP_DIRECTION_W2U;
566 else if (w2u == 0 && u2w > 0)
567 result->mappings.mappings_val[cb_data->next].direction =
568 IDMAP_DIRECTION_U2W;
569 else
570 result->mappings.mappings_val[cb_data->next].direction =
571 IDMAP_DIRECTION_BI;
572
573 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1domain,
574 argv[6]);
575
576 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id1name,
577 argv[7]);
578
579 STRDUP_OR_FAIL(result->mappings.mappings_val[cb_data->next].id2name,
580 argv[8]);
581
582 if (cb_data->flag & IDMAP_REQ_FLG_MAPPING_INFO) {
583 how = &result->mappings.mappings_val[cb_data->next].info.how;
584 how->map_type = strtoul(argv[11], &end, 10);
585 switch (how->map_type) {
586 case IDMAP_MAP_TYPE_DS_AD:
587 how->idmap_how_u.ad.dn =
588 strdup(argv[12]);
589 how->idmap_how_u.ad.attr =
590 strdup(argv[13]);
591 how->idmap_how_u.ad.value =
592 strdup(argv[14]);
593 break;
594
595 case IDMAP_MAP_TYPE_DS_NLDAP:
596 how->idmap_how_u.nldap.dn =
597 strdup(argv[12]);
598 how->idmap_how_u.nldap.attr =
599 strdup(argv[13]);
600 how->idmap_how_u.nldap.value =
601 strdup(argv[14]);
602 break;
603
604 case IDMAP_MAP_TYPE_RULE_BASED:
605 how->idmap_how_u.rule.windomain =
606 strdup(argv[15]);
607 how->idmap_how_u.rule.winname =
608 strdup(argv[16]);
609 how->idmap_how_u.rule.unixname =
610 strdup(argv[17]);
611 how->idmap_how_u.rule.is_nt4 =
612 strtoul(argv[18], &end, 10);
613 how->idmap_how_u.rule.is_user =
614 strtol(argv[9], &end, 10);
615 how->idmap_how_u.rule.is_wuser =
616 strtol(argv[10], &end, 10);
617 break;
618
619 case IDMAP_MAP_TYPE_EPHEMERAL:
620 break;
621
622 case IDMAP_MAP_TYPE_LOCAL_SID:
623 break;
624
625 case IDMAP_MAP_TYPE_IDMU:
626 how->idmap_how_u.idmu.dn =
627 strdup(argv[12]);
628 how->idmap_how_u.idmu.attr =
629 strdup(argv[13]);
630 how->idmap_how_u.idmu.value =
631 strdup(argv[14]);
632 break;
633
634 default:
635 /* Unknown mapping type */
636 assert(FALSE);
637 }
638
639 }
640
641 result->lastrowid = strtoll(argv[0], &end, 10);
642 cb_data->next++;
643 result->retcode = IDMAP_SUCCESS;
644 return (0);
645 }
646
647
648 /* ARGSUSED */
649 bool_t
650 idmap_list_mappings_1_svc(int64_t lastrowid, uint64_t limit, int32_t flag,
651 idmap_mappings_res *result, struct svc_req *rqstp)
652 {
653 sqlite *cache = NULL;
654 char lbuf[30], rbuf[30];
655 uint64_t maxlimit;
656 idmap_retcode retcode;
657 char *sql = NULL;
658 time_t curtime;
659
660 (void) memset(result, 0, sizeof (*result));
661
662 /* Current time */
663 errno = 0;
664 if ((curtime = time(NULL)) == (time_t)-1) {
665 idmapdlog(LOG_ERR, "Failed to get current time (%s)",
666 strerror(errno));
667 retcode = IDMAP_ERR_INTERNAL;
668 goto out;
669 }
670
671 RDLOCK_CONFIG();
672 maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit;
673 UNLOCK_CONFIG();
674
675 /* Get cache handle */
676 result->retcode = get_cache_handle(&cache);
677 if (result->retcode != IDMAP_SUCCESS)
678 goto out;
679
680 result->retcode = IDMAP_ERR_INTERNAL;
681
682 /* Create LIMIT expression. */
683 if (limit == 0 || (maxlimit > 0 && maxlimit < limit))
684 limit = maxlimit;
685 if (limit > 0)
686 (void) snprintf(lbuf, sizeof (lbuf),
687 "LIMIT %" PRIu64, limit + 1ULL);
688 else
689 lbuf[0] = '\0';
690
691 (void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid);
692
693 /*
694 * Combine all the above into a giant SELECT statement that
695 * will return the requested mappings
696 */
697
698 sql = sqlite_mprintf("SELECT rowid, sidprefix, rid, pid, w2u, "
699 "u2w, windomain, canon_winname, unixname, is_user, is_wuser, "
700 "map_type, map_dn, map_attr, map_value, map_windomain, "
701 "map_winname, map_unixname, map_is_nt4 "
702 "FROM idmap_cache WHERE %s AND "
703 "(pid >= 2147483648 OR (expiration = 0 OR "
704 "expiration ISNULL OR expiration > %d)) "
705 "%s;",
706 rbuf, curtime, lbuf);
707 if (sql == NULL) {
708 result->retcode = IDMAP_ERR_MEMORY;
709 idmapdlog(LOG_ERR, "Out of memory");
710 goto out;
711 }
712
713 /* Execute the SQL statement and update the return buffer */
714 PROCESS_LIST_SVC_SQL(retcode, cache, IDMAP_CACHENAME, sql, limit,
715 flag, list_mappings_cb, result, result->mappings.mappings_len);
716
717 out:
718 if (sql)
719 sqlite_freemem(sql);
720 if (IDMAP_ERROR(result->retcode))
721 (void) xdr_free(xdr_idmap_mappings_res, (caddr_t)result);
722 result->retcode = idmap_stat4prot(result->retcode);
723 return (TRUE);
724 }
725
726
727 /* ARGSUSED */
728 static
729 int
730 list_namerules_cb(void *parg, int argc, char **argv, char **colnames)
731 {
732 list_cb_data_t *cb_data;
733 idmap_namerules_res *result;
734 idmap_retcode retcode;
735 int w2u_order, u2w_order;
736 char *end;
737 static int validated_column_names = 0;
738
739 if (!validated_column_names) {
740 assert(strcmp(colnames[0], "rowid") == 0);
741 assert(strcmp(colnames[1], "is_user") == 0);
742 assert(strcmp(colnames[2], "is_wuser") == 0);
743 assert(strcmp(colnames[3], "windomain") == 0);
744 assert(strcmp(colnames[4], "winname_display") == 0);
745 assert(strcmp(colnames[5], "is_nt4") == 0);
746 assert(strcmp(colnames[6], "unixname") == 0);
747 assert(strcmp(colnames[7], "w2u_order") == 0);
748 assert(strcmp(colnames[8], "u2w_order") == 0);
749 validated_column_names = 1;
750 }
751
752 cb_data = (list_cb_data_t *)parg;
753 result = (idmap_namerules_res *)cb_data->result;
754
755 _VALIDATE_LIST_CB_DATA(9, &result->rules.rules_val,
756 sizeof (idmap_namerule));
757
758 result->rules.rules_len++;
759
760 result->rules.rules_val[cb_data->next].is_user =
761 strtol(argv[1], &end, 10);
762
763 result->rules.rules_val[cb_data->next].is_wuser =
764 strtol(argv[2], &end, 10);
765
766 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].windomain,
767 argv[3]);
768
769 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].winname,
770 argv[4]);
771
772 result->rules.rules_val[cb_data->next].is_nt4 =
773 strtol(argv[5], &end, 10);
774
775 STRDUP_OR_FAIL(result->rules.rules_val[cb_data->next].unixname,
776 argv[6]);
777
778 w2u_order = argv[7] ? strtol(argv[7], &end, 10) : 0;
779 u2w_order = argv[8] ? strtol(argv[8], &end, 10) : 0;
780
781 if (w2u_order > 0 && u2w_order == 0)
782 result->rules.rules_val[cb_data->next].direction =
783 IDMAP_DIRECTION_W2U;
784 else if (w2u_order == 0 && u2w_order > 0)
785 result->rules.rules_val[cb_data->next].direction =
786 IDMAP_DIRECTION_U2W;
787 else
788 result->rules.rules_val[cb_data->next].direction =
789 IDMAP_DIRECTION_BI;
790
791 result->lastrowid = strtoll(argv[0], &end, 10);
792 cb_data->next++;
793 result->retcode = IDMAP_SUCCESS;
794 return (0);
795 }
796
797
798 /* ARGSUSED */
799 bool_t
800 idmap_list_namerules_1_svc(idmap_namerule rule, uint64_t lastrowid,
801 uint64_t limit, idmap_namerules_res *result,
802 struct svc_req *rqstp)
803 {
804
805 sqlite *db = NULL;
806 char lbuf[30], rbuf[30];
807 char *sql = NULL;
808 char *expr = NULL;
809 uint64_t maxlimit;
810 idmap_retcode retcode;
811
812 (void) memset(result, 0, sizeof (*result));
813
814 result->retcode = validate_rule(&rule);
815 if (result->retcode != IDMAP_SUCCESS)
816 goto out;
817
818 RDLOCK_CONFIG();
819 maxlimit = _idmapdstate.cfg->pgcfg.list_size_limit;
820 UNLOCK_CONFIG();
821
822 /* Get db handle */
823 result->retcode = get_db_handle(&db);
824 if (result->retcode != IDMAP_SUCCESS)
825 goto out;
826
827 result->retcode = gen_sql_expr_from_rule(&rule, &expr);
828 if (result->retcode != IDMAP_SUCCESS)
829 goto out;
830
831 /* Create LIMIT expression. */
832 if (limit == 0 || (maxlimit > 0 && maxlimit < limit))
833 limit = maxlimit;
834 if (limit > 0)
835 (void) snprintf(lbuf, sizeof (lbuf),
836 "LIMIT %" PRIu64, limit + 1ULL);
837 else
838 lbuf[0] = '\0';
839
840 (void) snprintf(rbuf, sizeof (rbuf), "rowid > %" PRIu64, lastrowid);
841
842 /*
843 * Combine all the above into a giant SELECT statement that
844 * will return the requested rules
845 */
846 sql = sqlite_mprintf("SELECT rowid, is_user, is_wuser, windomain, "
847 "winname_display, is_nt4, unixname, w2u_order, u2w_order "
848 "FROM namerules WHERE "
849 " %s %s %s;",
850 rbuf, expr, lbuf);
851
852 if (sql == NULL) {
853 result->retcode = IDMAP_ERR_MEMORY;
854 idmapdlog(LOG_ERR, "Out of memory");
855 goto out;
856 }
857
858 /* Execute the SQL statement and update the return buffer */
859 PROCESS_LIST_SVC_SQL(retcode, db, IDMAP_DBNAME, sql, limit,
860 0, list_namerules_cb, result, result->rules.rules_len);
861
862 out:
863 if (expr)
864 sqlite_freemem(expr);
865 if (sql)
866 sqlite_freemem(sql);
867 if (IDMAP_ERROR(result->retcode))
868 (void) xdr_free(xdr_idmap_namerules_res, (caddr_t)result);
869 result->retcode = idmap_stat4prot(result->retcode);
870 return (TRUE);
871 }
872
873 #define IDMAP_RULES_AUTH "solaris.admin.idmap.rules"
874 static int
875 verify_rules_auth(struct svc_req *rqstp)
876 {
877 ucred_t *uc = NULL;
878 uid_t uid;
879 char buf[1024];
880 struct passwd pwd;
881
882 if (svc_getcallerucred(rqstp->rq_xprt, &uc) != 0) {
883 idmapdlog(LOG_ERR, "svc_getcallerucred failed during "
884 "authorization (%s)", strerror(errno));
885 return (-1);
886 }
887
888 uid = ucred_geteuid(uc);
889 if (uid == (uid_t)-1) {
890 idmapdlog(LOG_ERR, "ucred_geteuid failed during "
891 "authorization (%s)", strerror(errno));
892 ucred_free(uc);
893 return (-1);
894 }
895
896 if (getpwuid_r(uid, &pwd, buf, sizeof (buf)) == NULL) {
897 idmapdlog(LOG_ERR, "getpwuid_r(%u) failed during "
898 "authorization (%s)", uid, strerror(errno));
899 ucred_free(uc);
900 return (-1);
901 }
902
903 if (chkauthattr(IDMAP_RULES_AUTH, pwd.pw_name) != 1) {
904 idmapdlog(LOG_INFO, "%s is not authorized (%s)",
905 pwd.pw_name, IDMAP_RULES_AUTH);
906 ucred_free(uc);
907 return (-1);
908 }
909
910 ucred_free(uc);
911 return (1);
912 }
913
914 /*
915 * Meaning of the return values is the following: For retcode ==
916 * IDMAP_SUCCESS, everything went OK and error_index is
917 * undefined. Otherwise, error_index >=0 shows the failed batch
918 * element. errro_index == -1 indicates failure at the beginning,
919 * error_index == -2 at the end.
920 */
921
922 /* ARGSUSED */
923 bool_t
924 idmap_update_1_svc(idmap_update_batch batch, idmap_update_res *res,
925 struct svc_req *rqstp)
926 {
927 sqlite *db = NULL;
928 idmap_update_op *up;
929 int i;
930 int trans = FALSE;
931
932 res->error_index = -1;
933 (void) memset(&res->error_rule, 0, sizeof (res->error_rule));
934 (void) memset(&res->conflict_rule, 0, sizeof (res->conflict_rule));
935
936 if (verify_rules_auth(rqstp) < 0) {
937 res->retcode = IDMAP_ERR_PERMISSION_DENIED;
938 goto out;
939 }
940
941 if (batch.idmap_update_batch_len == 0 ||
942 batch.idmap_update_batch_val == NULL) {
943 res->retcode = IDMAP_SUCCESS;
944 goto out;
945 }
946
947 res->retcode = validate_rules(&batch);
948 if (res->retcode != IDMAP_SUCCESS)
949 goto out;
950
951 /* Get db handle */
952 res->retcode = get_db_handle(&db);
953 if (res->retcode != IDMAP_SUCCESS)
954 goto out;
955
956 res->retcode = sql_exec_no_cb(db, IDMAP_DBNAME, "BEGIN TRANSACTION;");
957 if (res->retcode != IDMAP_SUCCESS)
958 goto out;
959 trans = TRUE;
960
961 for (i = 0; i < batch.idmap_update_batch_len; i++) {
962 up = &batch.idmap_update_batch_val[i];
963 switch (up->opnum) {
964 case OP_NONE:
965 res->retcode = IDMAP_SUCCESS;
966 break;
967 case OP_ADD_NAMERULE:
968 res->retcode = add_namerule(db,
969 &up->idmap_update_op_u.rule);
970 break;
971 case OP_RM_NAMERULE:
972 res->retcode = rm_namerule(db,
973 &up->idmap_update_op_u.rule);
974 break;
975 case OP_FLUSH_NAMERULES:
976 res->retcode = flush_namerules(db);
977 break;
978 default:
979 res->retcode = IDMAP_ERR_NOTSUPPORTED;
980 break;
981 };
982
983 if (res->retcode != IDMAP_SUCCESS) {
984 res->error_index = i;
985 if (up->opnum == OP_ADD_NAMERULE ||
986 up->opnum == OP_RM_NAMERULE) {
987 idmap_stat r2 =
988 idmap_namerule_cpy(&res->error_rule,
989 &up->idmap_update_op_u.rule);
990 if (r2 != IDMAP_SUCCESS)
991 res->retcode = r2;
992 }
993 goto out;
994 }
995 }
996
997 out:
998 if (trans) {
999 if (res->retcode == IDMAP_SUCCESS) {
1000 res->retcode =
1001 sql_exec_no_cb(db, IDMAP_DBNAME,
1002 "COMMIT TRANSACTION;");
1003 if (res->retcode == IDMAP_SUCCESS) {
1004 /*
1005 * We've updated the rules. Expire the cache
1006 * so that existing mappings will be
1007 * reconsidered.
1008 */
1009 res->retcode =
1010 idmap_cache_flush(IDMAP_FLUSH_EXPIRE);
1011 } else {
1012 res->error_index = -2;
1013 }
1014 }
1015 else
1016 (void) sql_exec_no_cb(db, IDMAP_DBNAME,
1017 "ROLLBACK TRANSACTION;");
1018 }
1019
1020 res->retcode = idmap_stat4prot(res->retcode);
1021
1022 return (TRUE);
1023 }
1024
1025 static
1026 int
1027 copy_string(char **to, char *from)
1028 {
1029 if (EMPTY_STRING(from)) {
1030 *to = NULL;
1031 } else {
1032 *to = strdup(from);
1033 if (*to == NULL) {
1034 idmapdlog(LOG_ERR, "Out of memory");
1035 return (IDMAP_ERR_MEMORY);
1036 }
1037 }
1038 return (IDMAP_SUCCESS);
1039 }
1040
1041 static
1042 int
1043 copy_id(idmap_id *to, idmap_id *from)
1044 {
1045 (void) memset(to, 0, sizeof (*to));
1046
1047 to->idtype = from->idtype;
1048 if (IS_ID_SID(*from)) {
1049 idmap_retcode retcode;
1050
1051 to->idmap_id_u.sid.rid = from->idmap_id_u.sid.rid;
1052 retcode = copy_string(&to->idmap_id_u.sid.prefix,
1053 from->idmap_id_u.sid.prefix);
1054
1055 return (retcode);
1056 } else {
1057 to->idmap_id_u.uid = from->idmap_id_u.uid;
1058 return (IDMAP_SUCCESS);
1059 }
1060 }
1061
1062 static
1063 int
1064 copy_mapping(idmap_mapping *mapping, idmap_mapping *request)
1065 {
1066 idmap_retcode retcode;
1067
1068 (void) memset(mapping, 0, sizeof (*mapping));
1069
1070 mapping->flag = request->flag;
1071 mapping->direction = _IDMAP_F_DONE;
1072
1073 retcode = copy_id(&mapping->id1, &request->id1);
1074 if (retcode != IDMAP_SUCCESS)
1075 goto errout;
1076
1077 retcode = copy_string(&mapping->id1domain, request->id1domain);
1078 if (retcode != IDMAP_SUCCESS)
1079 goto errout;
1080
1081 retcode = copy_string(&mapping->id1name, request->id1name);
1082 if (retcode != IDMAP_SUCCESS)
1083 goto errout;
1084
1085 retcode = copy_id(&mapping->id2, &request->id2);
1086 if (retcode != IDMAP_SUCCESS)
1087 goto errout;
1088
1089 retcode = copy_string(&mapping->id2domain, request->id2domain);
1090 if (retcode != IDMAP_SUCCESS)
1091 goto errout;
1092 retcode = copy_string(&mapping->id2name, request->id2name);
1093 if (retcode != IDMAP_SUCCESS)
1094 goto errout;
1095
1096 return (IDMAP_SUCCESS);
1097
1098 errout:
1099 if (IS_ID_SID(mapping->id1))
1100 free(mapping->id1.idmap_id_u.sid.prefix);
1101 free(mapping->id1domain);
1102 free(mapping->id1name);
1103 if (IS_ID_SID(mapping->id2))
1104 free(mapping->id2.idmap_id_u.sid.prefix);
1105 free(mapping->id2domain);
1106 free(mapping->id2name);
1107
1108 (void) memset(mapping, 0, sizeof (*mapping));
1109 return (retcode);
1110 }
1111
1112
1113 /* ARGSUSED */
1114 bool_t
1115 idmap_get_mapped_id_by_name_1_svc(idmap_mapping request,
1116 idmap_mappings_res *result, struct svc_req *rqstp)
1117 {
1118 idmap_mapping_batch batch_request;
1119 idmap_ids_res batch_result;
1120 idmap_mapping *map;
1121
1122 /* Clear out things we might want to xdr_free on error */
1123 (void) memset(&batch_result, 0, sizeof (batch_result));
1124 (void) memset(result, 0, sizeof (*result));
1125
1126 result->retcode = validate_mapped_id_by_name_req(&request);
1127 if (result->retcode != IDMAP_SUCCESS)
1128 goto out;
1129
1130 /*
1131 * Copy the request. We need to modify it, and
1132 * what we have is a shallow copy. Freeing pointers from
1133 * our copy will lead to problems, since the RPC framework
1134 * has its own copy of those pointers. Besides, we need
1135 * a copy to return.
1136 */
1137 map = calloc(1, sizeof (idmap_mapping));
1138 if (map == NULL) {
1139 idmapdlog(LOG_ERR, "Out of memory");
1140 result->retcode = IDMAP_ERR_MEMORY;
1141 goto out;
1142 }
1143
1144 /*
1145 * Set up to return the filled-in mapping structure.
1146 * Note that we xdr_free result on error, and that'll take
1147 * care of freeing the mapping structure.
1148 */
1149 result->mappings.mappings_val = map;
1150 result->mappings.mappings_len = 1;
1151
1152 result->retcode = copy_mapping(map, &request);
1153 if (result->retcode != IDMAP_SUCCESS)
1154 goto out;
1155
1156 /* Set up for the request to the batch API */
1157 batch_request.idmap_mapping_batch_val = map;
1158 batch_request.idmap_mapping_batch_len = 1;
1159
1160 /* Do the real work. */
1161 (void) idmap_get_mapped_ids_1_svc(batch_request,
1162 &batch_result, rqstp);
1163
1164 /* Copy what we need out of the batch response */
1165
1166 if (batch_result.retcode != IDMAP_SUCCESS) {
1167 result->retcode = batch_result.retcode;
1168 goto out;
1169 }
1170
1171 result->retcode = copy_id(&map->id2, &batch_result.ids.ids_val[0].id);
1172 if (result->retcode != IDMAP_SUCCESS)
1173 goto out;
1174
1175 map->direction = batch_result.ids.ids_val[0].direction;
1176
1177 result->retcode = batch_result.ids.ids_val[0].retcode;
1178
1179 idmap_info_mov(&map->info, &batch_result.ids.ids_val[0].info);
1180
1181 out:
1182 if (IDMAP_FATAL_ERROR(result->retcode)) {
1183 xdr_free(xdr_idmap_mappings_res, (caddr_t)result);
1184 result->mappings.mappings_len = 0;
1185 result->mappings.mappings_val = NULL;
1186 }
1187 result->retcode = idmap_stat4prot(result->retcode);
1188
1189 xdr_free(xdr_idmap_ids_res, (char *)&batch_result);
1190
1191 return (TRUE);
1192 }
1193
1194 /* ARGSUSED */
1195 bool_t
1196 idmap_get_prop_1_svc(idmap_prop_type request,
1197 idmap_prop_res *result, struct svc_req *rqstp)
1198 {
1199 idmap_pg_config_t *pgcfg;
1200
1201 /* Init */
1202 (void) memset(result, 0, sizeof (*result));
1203 result->retcode = IDMAP_SUCCESS;
1204 result->value.prop = request;
1205
1206 RDLOCK_CONFIG();
1207
1208 /* Just shortcuts: */
1209 pgcfg = &_idmapdstate.cfg->pgcfg;
1210
1211
1212 switch (request) {
1213 case PROP_LIST_SIZE_LIMIT:
1214 result->value.idmap_prop_val_u.intval = pgcfg->list_size_limit;
1215 result->auto_discovered = FALSE;
1216 break;
1217 case PROP_DEFAULT_DOMAIN:
1218 result->auto_discovered = FALSE;
1219 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1220 pgcfg->default_domain);
1221 break;
1222 case PROP_DOMAIN_NAME:
1223 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1224 pgcfg->domain_name);
1225 result->auto_discovered =
1226 pgcfg->domain_name_auto_disc;
1227 break;
1228 case PROP_MACHINE_SID:
1229 result->auto_discovered = FALSE;
1230 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1231 pgcfg->machine_sid);
1232 break;
1233 case PROP_DOMAIN_CONTROLLER:
1234 if (pgcfg->domain_controller != NULL) {
1235 (void) memcpy(&result->value.idmap_prop_val_u.dsval,
1236 pgcfg->domain_controller,
1237 sizeof (idmap_ad_disc_ds_t));
1238 }
1239 result->auto_discovered = pgcfg->domain_controller_auto_disc;
1240 break;
1241 case PROP_FOREST_NAME:
1242 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1243 pgcfg->forest_name);
1244 result->auto_discovered = pgcfg->forest_name_auto_disc;
1245 break;
1246 case PROP_SITE_NAME:
1247 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1248 pgcfg->site_name);
1249 result->auto_discovered = pgcfg->site_name_auto_disc;
1250 break;
1251 case PROP_GLOBAL_CATALOG:
1252 if (pgcfg->global_catalog != NULL) {
1253 (void) memcpy(&result->value.idmap_prop_val_u.dsval,
1254 pgcfg->global_catalog, sizeof (idmap_ad_disc_ds_t));
1255 }
1256 result->auto_discovered = pgcfg->global_catalog_auto_disc;
1257 break;
1258 case PROP_AD_UNIXUSER_ATTR:
1259 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1260 pgcfg->ad_unixuser_attr);
1261 result->auto_discovered = FALSE;
1262 break;
1263 case PROP_AD_UNIXGROUP_ATTR:
1264 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1265 pgcfg->ad_unixgroup_attr);
1266 result->auto_discovered = FALSE;
1267 break;
1268 case PROP_NLDAP_WINNAME_ATTR:
1269 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1270 pgcfg->nldap_winname_attr);
1271 result->auto_discovered = FALSE;
1272 break;
1273 case PROP_DIRECTORY_BASED_MAPPING:
1274 STRDUP_CHECK(result->value.idmap_prop_val_u.utf8val,
1275 enum_lookup(pgcfg->directory_based_mapping,
1276 directory_mapping_map));
1277 result->auto_discovered = FALSE;
1278 break;
1279 default:
1280 result->retcode = IDMAP_ERR_PROP_UNKNOWN;
1281 break;
1282 }
1283
1284 out:
1285 UNLOCK_CONFIG();
1286 if (IDMAP_FATAL_ERROR(result->retcode)) {
1287 xdr_free(xdr_idmap_prop_res, (caddr_t)result);
1288 result->value.prop = PROP_UNKNOWN;
1289 }
1290 result->retcode = idmap_stat4prot(result->retcode);
1291 return (TRUE);
1292 }
1293
1294 int
1295 idmap_flush_1_svc(
1296 idmap_flush_op op,
1297 idmap_retcode *result,
1298 struct svc_req *rqstp)
1299 {
1300 NOTE(ARGUNUSED(rqstp))
1301 if (verify_rules_auth(rqstp) < 0) {
1302 *result = IDMAP_ERR_PERMISSION_DENIED;
1303 return (TRUE);
1304 }
1305
1306 *result = idmap_cache_flush(op);
1307
1308 return (TRUE);
1309 }
1310
1311 /* ARGSUSED */
1312 int
1313 idmap_prog_1_freeresult(SVCXPRT *transp, xdrproc_t xdr_result,
1314 caddr_t result)
1315 {
1316 (void) xdr_free(xdr_result, result);
1317 return (TRUE);
1318 }
1319
1320 /*
1321 * This function is called by rpc_svc.c when it encounters an error.
1322 */
1323 NOTE(PRINTFLIKE(1))
1324 void
1325 idmap_rpc_msgout(const char *fmt, ...)
1326 {
1327 va_list va;
1328 char buf[1000];
1329
1330 va_start(va, fmt);
1331 (void) vsnprintf(buf, sizeof (buf), fmt, va);
1332 va_end(va);
1333
1334 idmapdlog(LOG_ERR, "idmap RPC: %s", buf);
1335 }
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