1 /*	$NetBSD: add.c,v 1.3 2021/08/14 16:14:58 christos Exp $	*/
2 
3 /* $OpenLDAP$ */
4 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5  *
6  * Copyright 1998-2021 The OpenLDAP Foundation.
7  * All rights reserved.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted only as authorized by the OpenLDAP
11  * Public License.
12  *
13  * A copy of this license is available in the file LICENSE in the
14  * top-level directory of the distribution or, alternatively, at
15  * <http://www.OpenLDAP.org/license.html>.
16  */
17 /* Portions Copyright (c) 1995 Regents of the University of Michigan.
18  * All rights reserved.
19  *
20  * Redistribution and use in source and binary forms are permitted
21  * provided that this notice is preserved and that due credit is given
22  * to the University of Michigan at Ann Arbor. The name of the University
23  * may not be used to endorse or promote products derived from this
24  * software without specific prior written permission. This software
25  * is provided ``as is'' without express or implied warranty.
26  */
27 
28 #include <sys/cdefs.h>
29 __RCSID("$NetBSD: add.c,v 1.3 2021/08/14 16:14:58 christos Exp $");
30 
31 #include "portable.h"
32 
33 #include <stdio.h>
34 #include <ac/string.h>
35 #include <ac/time.h>
36 #include <ac/socket.h>
37 
38 #include "lutil.h"
39 #include "slap.h"
40 
41 int
do_add(Operation * op,SlapReply * rs)42 do_add( Operation *op, SlapReply *rs )
43 {
44 	BerElement	*ber = op->o_ber;
45 	char		*last;
46 	struct berval	dn = BER_BVNULL;
47 	ber_len_t	len;
48 	ber_tag_t	tag;
49 	Modifications	*modlist = NULL;
50 	Modifications	**modtail = &modlist;
51 	Modifications	tmp;
52 	char		textbuf[ SLAP_TEXT_BUFLEN ];
53 	size_t		textlen = sizeof( textbuf );
54 	int		rc = 0;
55 	int		freevals = 1;
56 	OpExtraDB *oex;
57 
58 	Debug( LDAP_DEBUG_TRACE, "%s do_add\n",
59 		op->o_log_prefix );
60 
61 	/*
62 	 * Parse the add request.  It looks like this:
63 	 *
64 	 *	AddRequest := [APPLICATION 14] SEQUENCE {
65 	 *		name	DistinguishedName,
66 	 *		attrs	SEQUENCE OF SEQUENCE {
67 	 *			type	AttributeType,
68 	 *			values	SET OF AttributeValue
69 	 *		}
70 	 *	}
71 	 */
72 
73 	/* get the name */
74 	if ( ber_scanf( ber, "{m", /*}*/ &dn ) == LBER_ERROR ) {
75 		Debug( LDAP_DEBUG_ANY, "%s do_add: ber_scanf failed\n",
76 			op->o_log_prefix );
77 		send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
78 		return SLAPD_DISCONNECT;
79 	}
80 
81 	Debug( LDAP_DEBUG_ARGS, "%s do_add: dn (%s)\n",
82 		op->o_log_prefix, dn.bv_val );
83 
84 	/* get the attrs */
85 	for ( tag = ber_first_element( ber, &len, &last ); tag != LBER_DEFAULT;
86 	    tag = ber_next_element( ber, &len, last ) )
87 	{
88 		Modifications *mod;
89 		ber_tag_t rtag;
90 
91 		tmp.sml_nvalues = NULL;
92 
93 		rtag = ber_scanf( ber, "{m{W}}", &tmp.sml_type, &tmp.sml_values );
94 
95 		if ( rtag == LBER_ERROR ) {
96 			Debug( LDAP_DEBUG_ANY, "%s do_add: decoding error\n",
97 				op->o_log_prefix );
98 			send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
99 			rs->sr_err = SLAPD_DISCONNECT;
100 			goto done;
101 		}
102 
103 		if ( tmp.sml_values == NULL ) {
104 			Debug( LDAP_DEBUG_ANY, "%s do_add: no values for type %s\n",
105 				op->o_log_prefix, tmp.sml_type.bv_val );
106 			send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
107 				"no values for attribute type" );
108 			goto done;
109 		}
110 
111 		mod  = (Modifications *) ch_malloc( sizeof(Modifications) );
112 		mod->sml_op = LDAP_MOD_ADD;
113 		mod->sml_flags = 0;
114 		mod->sml_next = NULL;
115 		mod->sml_desc = NULL;
116 		mod->sml_type = tmp.sml_type;
117 		mod->sml_values = tmp.sml_values;
118 		mod->sml_nvalues = NULL;
119 
120 		*modtail = mod;
121 		modtail = &mod->sml_next;
122 	}
123 
124 	if ( ber_scanf( ber, /*{*/ "}") == LBER_ERROR ) {
125 		Debug( LDAP_DEBUG_ANY, "%s do_add: ber_scanf failed\n",
126 			op->o_log_prefix );
127 		send_ldap_discon( op, rs, LDAP_PROTOCOL_ERROR, "decoding error" );
128 		rs->sr_err = SLAPD_DISCONNECT;
129 		goto done;
130 	}
131 
132 	if ( get_ctrls( op, rs, 1 ) != LDAP_SUCCESS ) {
133 		Debug( LDAP_DEBUG_ANY, "%s do_add: get_ctrls failed\n",
134 			op->o_log_prefix );
135 		goto done;
136 	}
137 
138 	rs->sr_err = dnPrettyNormal( NULL, &dn, &op->o_req_dn, &op->o_req_ndn,
139 		op->o_tmpmemctx );
140 
141 	if ( rs->sr_err != LDAP_SUCCESS ) {
142 		Debug( LDAP_DEBUG_ANY, "%s do_add: invalid dn (%s)\n",
143 			op->o_log_prefix, dn.bv_val );
144 		send_ldap_error( op, rs, LDAP_INVALID_DN_SYNTAX, "invalid DN" );
145 		goto done;
146 	}
147 
148 	op->ora_e = entry_alloc();
149 	ber_dupbv( &op->ora_e->e_name, &op->o_req_dn );
150 	ber_dupbv( &op->ora_e->e_nname, &op->o_req_ndn );
151 
152 	Debug( LDAP_DEBUG_STATS, "%s ADD dn=\"%s\"\n",
153 	    op->o_log_prefix, op->o_req_dn.bv_val );
154 
155 	if ( modlist == NULL ) {
156 		send_ldap_error( op, rs, LDAP_PROTOCOL_ERROR,
157 			"no attributes provided" );
158 		goto done;
159 	}
160 
161 	if ( dn_match( &op->ora_e->e_nname, &slap_empty_bv ) ) {
162 		/* protocolError may be a more appropriate error */
163 		send_ldap_error( op, rs, LDAP_ALREADY_EXISTS,
164 			"root DSE already exists" );
165 		goto done;
166 
167 	} else if ( dn_match( &op->ora_e->e_nname, &frontendDB->be_schemandn ) ) {
168 		send_ldap_error( op, rs, LDAP_ALREADY_EXISTS,
169 			"subschema subentry already exists" );
170 		goto done;
171 	}
172 
173 	rs->sr_err = slap_mods_check( op, modlist, &rs->sr_text,
174 		textbuf, textlen, NULL );
175 
176 	if ( rs->sr_err != LDAP_SUCCESS ) {
177 		send_ldap_result( op, rs );
178 		goto done;
179 	}
180 
181 	/* temporary; remove if not invoking backend function */
182 	op->ora_modlist = modlist;
183 
184 	/* call this so global overlays/SLAPI have access to ora_e */
185 	rs->sr_err = slap_mods2entry( op->ora_modlist, &op->ora_e,
186 		1, 0, &rs->sr_text, textbuf, textlen );
187 	if ( rs->sr_err != LDAP_SUCCESS ) {
188 		send_ldap_result( op, rs );
189 		goto done;
190 	}
191 
192 	freevals = 0;
193 	oex = op->o_tmpalloc( sizeof(OpExtraDB), op->o_tmpmemctx );
194 	oex->oe.oe_key = (void *)do_add;
195 	oex->oe_db = NULL;
196 	LDAP_SLIST_INSERT_HEAD(&op->o_extra, &oex->oe, oe_next);
197 
198 	op->o_bd = frontendDB;
199 	rc = frontendDB->be_add( op, rs );
200 
201 	if ( rc == SLAPD_ASYNCOP ) {
202 		/* skip cleanup */
203 		return rc;
204 	}
205 
206 	LDAP_SLIST_REMOVE(&op->o_extra, &oex->oe, OpExtra, oe_next);
207 	if ( rc == LDAP_TXN_SPECIFY_OKAY ) {
208 		/* skip cleanup */
209 		return rc;
210 	} else if ( rc == 0 ) {
211 		if ( op->ora_e != NULL && oex->oe_db != NULL ) {
212 			BackendDB	*bd = op->o_bd;
213 
214 			op->o_bd = oex->oe_db;
215 
216 			be_entry_release_w( op, op->ora_e );
217 
218 			op->ora_e = NULL;
219 			op->o_bd = bd;
220 		}
221 	}
222 	op->o_tmpfree( oex, op->o_tmpmemctx );
223 
224 done:;
225 	if ( modlist != NULL ) {
226 		/* in case of error, free the values as well */
227 		slap_mods_free( modlist, freevals );
228 	}
229 
230 	if ( op->ora_e != NULL ) {
231 		entry_free( op->ora_e );
232 	}
233 	op->o_tmpfree( op->o_req_dn.bv_val, op->o_tmpmemctx );
234 	op->o_tmpfree( op->o_req_ndn.bv_val, op->o_tmpmemctx );
235 
236 	return rc;
237 }
238 
239 int
fe_op_add(Operation * op,SlapReply * rs)240 fe_op_add( Operation *op, SlapReply *rs )
241 {
242 	Modifications	**modtail = &op->ora_modlist;
243 	int		rc = 0;
244 	BackendDB	*op_be, *bd = op->o_bd;
245 	char		textbuf[ SLAP_TEXT_BUFLEN ];
246 	size_t		textlen = sizeof( textbuf );
247 
248 	/*
249 	 * We could be serving multiple database backends.  Select the
250 	 * appropriate one, or send a referral to our "referral server"
251 	 * if we don't hold it.
252 	 */
253 	op->o_bd = select_backend( &op->ora_e->e_nname, 1 );
254 	if ( op->o_bd == NULL ) {
255 		op->o_bd = bd;
256 		rs->sr_ref = referral_rewrite( default_referral,
257 			NULL, &op->ora_e->e_name, LDAP_SCOPE_DEFAULT );
258 		if ( !rs->sr_ref ) rs->sr_ref = default_referral;
259 		if ( rs->sr_ref ) {
260 			rs->sr_err = LDAP_REFERRAL;
261 			send_ldap_result( op, rs );
262 
263 			if ( rs->sr_ref != default_referral ) {
264 				ber_bvarray_free( rs->sr_ref );
265 			}
266 		} else {
267 			send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
268 				"no global superior knowledge" );
269 		}
270 		goto done;
271 	}
272 
273 	/* If we've got a glued backend, check the real backend */
274 	op_be = op->o_bd;
275 	if ( SLAP_GLUE_INSTANCE( op->o_bd )) {
276 		op->o_bd = select_backend( &op->ora_e->e_nname, 0 );
277 	}
278 
279 	/* check restrictions */
280 	if( backend_check_restrictions( op, rs, NULL ) != LDAP_SUCCESS ) {
281 		send_ldap_result( op, rs );
282 		goto done;
283 	}
284 
285 	/* check for referrals */
286 	if( backend_check_referrals( op, rs ) != LDAP_SUCCESS ) {
287 		goto done;
288 	}
289 
290 	rs->sr_err = slap_mods_obsolete_check( op, op->ora_modlist,
291 		&rs->sr_text, textbuf, textlen );
292 
293 	if ( rs->sr_err != LDAP_SUCCESS ) {
294 		send_ldap_result( op, rs );
295 		goto done;
296 	}
297 
298 	/*
299 	 * do the add if 1 && (2 || 3)
300 	 * 1) there is an add function implemented in this backend;
301 	 * 2) this backend is the provider for what it holds;
302 	 * 3) it's a replica and the dn supplied is the updatedn.
303 	 */
304 	if ( op->o_bd->be_add ) {
305 		/* do the update here */
306 		int repl_user = be_isupdate( op );
307 		if ( !SLAP_SINGLE_SHADOW(op->o_bd) || repl_user ) {
308 			int		update = !BER_BVISEMPTY( &op->o_bd->be_update_ndn );
309 
310 			if ( !update ) {
311 				rs->sr_err = slap_mods_no_user_mod_check( op, op->ora_modlist,
312 					&rs->sr_text, textbuf, textlen );
313 
314 				if ( rs->sr_err != LDAP_SUCCESS ) {
315 					send_ldap_result( op, rs );
316 					goto done;
317 				}
318 			}
319 
320 			if ( !repl_user ) {
321 				/* go to the last mod */
322 				for ( modtail = &op->ora_modlist;
323 						*modtail != NULL;
324 						modtail = &(*modtail)->sml_next )
325 				{
326 					assert( (*modtail)->sml_op == LDAP_MOD_ADD );
327 					assert( (*modtail)->sml_desc != NULL );
328 				}
329 
330 
331 				/* check for unmodifiable attributes */
332 				rs->sr_err = slap_mods_no_repl_user_mod_check( op,
333 					op->ora_modlist, &rs->sr_text, textbuf, textlen );
334 				if ( rs->sr_err != LDAP_SUCCESS ) {
335 					send_ldap_result( op, rs );
336 					goto done;
337 				}
338 			}
339 
340 			if ( op->o_txnSpec ) {
341 				rc = txn_preop( op, rs );
342 				goto done;
343 			}
344 
345 			op->o_bd = op_be;
346 			rc = op->o_bd->be_add( op, rs );
347 			if ( rc == LDAP_SUCCESS ) {
348 				OpExtra *oex;
349 				/* NOTE: be_entry_release_w() is
350 				 * called by do_add(), so that global
351 				 * overlays on the way back can
352 				 * at least read the entry */
353 				LDAP_SLIST_FOREACH(oex, &op->o_extra, oe_next) {
354 					if ( oex->oe_key == (void *)do_add ) {
355 						((OpExtraDB *)oex)->oe_db = op->o_bd;
356 						break;
357 					}
358 				}
359 			}
360 
361 		} else {
362 			BerVarray defref = NULL;
363 
364 			defref = op->o_bd->be_update_refs
365 				? op->o_bd->be_update_refs : default_referral;
366 
367 			if ( defref != NULL ) {
368 				rs->sr_ref = referral_rewrite( defref,
369 					NULL, &op->ora_e->e_name, LDAP_SCOPE_DEFAULT );
370 				if ( rs->sr_ref == NULL ) rs->sr_ref = defref;
371 				rs->sr_err = LDAP_REFERRAL;
372 				if (!rs->sr_ref) rs->sr_ref = default_referral;
373 				send_ldap_result( op, rs );
374 
375 				if ( rs->sr_ref != default_referral ) {
376 					ber_bvarray_free( rs->sr_ref );
377 				}
378 			} else {
379 				send_ldap_error( op, rs,
380 					LDAP_UNWILLING_TO_PERFORM,
381 					"shadow context; no update referral" );
382 			}
383 		}
384 	} else {
385 		Debug( LDAP_DEBUG_ARGS, "do_add: no backend support\n" );
386 		send_ldap_error( op, rs, LDAP_UNWILLING_TO_PERFORM,
387 			"operation not supported within namingContext" );
388 	}
389 
390 done:;
391 	op->o_bd = bd;
392 	return rc;
393 }
394 
395 int
slap_mods2entry(Modifications * mods,Entry ** e,int initial,int dup,const char ** text,char * textbuf,size_t textlen)396 slap_mods2entry(
397 	Modifications *mods,
398 	Entry **e,
399 	int initial,
400 	int dup,
401 	const char **text,
402 	char *textbuf, size_t textlen )
403 {
404 	Attribute **tail;
405 	int i;
406 
407 	if ( initial ) {
408 		assert( (*e)->e_attrs == NULL );
409 	}
410 
411 	for ( tail = &(*e)->e_attrs; *tail != NULL; tail = &(*tail)->a_next )
412 		;
413 
414 	*text = textbuf;
415 
416 	for( ; mods != NULL; mods = mods->sml_next ) {
417 		Attribute *attr;
418 
419 		assert( mods->sml_desc != NULL );
420 
421 		attr = attr_find( (*e)->e_attrs, mods->sml_desc );
422 
423 		if( attr != NULL ) {
424 #define SLURPD_FRIENDLY
425 #ifdef SLURPD_FRIENDLY
426 			int j;
427 
428 			if ( !initial ) {
429 				/*
430 				 * This check allows overlays to override operational
431 				 * attributes by setting them directly in the entry.
432 				 * We assume slap_mods_no_user_mod_check() was called
433 				 * with the user modifications.
434 				 */
435 				*text = NULL;
436 				return LDAP_SUCCESS;
437 			}
438 
439 			i = attr->a_numvals;
440 			j = mods->sml_numvals;
441 			attr->a_numvals += j;
442 			j++;	/* NULL */
443 
444 			attr->a_vals = ch_realloc( attr->a_vals,
445 				sizeof( struct berval ) * (i+j) );
446 
447 			/* checked for duplicates in slap_mods_check */
448 
449 			if ( dup ) {
450 				for ( j = 0; mods->sml_values[j].bv_val; j++ ) {
451 					ber_dupbv( &attr->a_vals[i+j], &mods->sml_values[j] );
452 				}
453 				BER_BVZERO( &attr->a_vals[i+j] );
454 				j++;
455 			} else {
456 				AC_MEMCPY( &attr->a_vals[i], mods->sml_values,
457 					sizeof( struct berval ) * j );
458 			}
459 
460 			if( mods->sml_nvalues ) {
461 				attr->a_nvals = ch_realloc( attr->a_nvals,
462 					sizeof( struct berval ) * (i+j) );
463 				if ( dup ) {
464 					for ( j = 0; mods->sml_nvalues[j].bv_val; j++ ) {
465 						ber_dupbv( &attr->a_nvals[i+j], &mods->sml_nvalues[j] );
466 					}
467 					BER_BVZERO( &attr->a_nvals[i+j] );
468 				} else {
469 					AC_MEMCPY( &attr->a_nvals[i], mods->sml_nvalues,
470 						sizeof( struct berval ) * j );
471 				}
472 			} else {
473 				attr->a_nvals = attr->a_vals;
474 			}
475 
476 			continue;
477 #else
478 			snprintf( textbuf, textlen,
479 				"attribute '%s' provided more than once",
480 				mods->sml_desc->ad_cname.bv_val );
481 			*text = textbuf;
482 			return LDAP_TYPE_OR_VALUE_EXISTS;
483 #endif
484 		}
485 
486 		attr = attr_alloc( mods->sml_desc );
487 
488 		/* move values to attr structure */
489 		i = mods->sml_numvals;
490 		attr->a_numvals = mods->sml_numvals;
491 		if ( dup ) {
492 			attr->a_vals = (BerVarray) ch_calloc( i+1, sizeof( BerValue ));
493 			for ( i = 0; mods->sml_values[i].bv_val; i++ ) {
494 				ber_dupbv( &attr->a_vals[i], &mods->sml_values[i] );
495 			}
496 			BER_BVZERO( &attr->a_vals[i] );
497 		} else {
498 			attr->a_vals = mods->sml_values;
499 		}
500 
501 		if ( mods->sml_nvalues ) {
502 			if ( dup ) {
503 				i = mods->sml_numvals;
504 				attr->a_nvals = (BerVarray) ch_calloc( i+1, sizeof( BerValue ));
505 				for ( i = 0; mods->sml_nvalues[i].bv_val; i++ ) {
506 					ber_dupbv( &attr->a_nvals[i], &mods->sml_nvalues[i] );
507 				}
508 				BER_BVZERO( &attr->a_nvals[i] );
509 			} else {
510 				attr->a_nvals = mods->sml_nvalues;
511 			}
512 		} else {
513 			attr->a_nvals = attr->a_vals;
514 		}
515 
516 		*tail = attr;
517 		tail = &attr->a_next;
518 	}
519 
520 	*text = NULL;
521 
522 	return LDAP_SUCCESS;
523 }
524 
525 int
slap_entry2mods(Entry * e,Modifications ** mods,const char ** text,char * textbuf,size_t textlen)526 slap_entry2mods(
527 	Entry *e,
528 	Modifications **mods,
529 	const char **text,
530 	char *textbuf, size_t textlen )
531 {
532 	Modifications	*modhead = NULL;
533 	Modifications	*mod;
534 	Modifications	**modtail = &modhead;
535 	Attribute		*a_new;
536 	AttributeDescription	*a_new_desc;
537 	int				i, count;
538 
539 	a_new = e->e_attrs;
540 
541 	while ( a_new != NULL ) {
542 		a_new_desc = a_new->a_desc;
543 		mod = (Modifications *) ch_malloc( sizeof( Modifications ));
544 
545 		mod->sml_op = LDAP_MOD_REPLACE;
546 		mod->sml_flags = 0;
547 
548 		mod->sml_type = a_new_desc->ad_cname;
549 
550 		count = a_new->a_numvals;
551 		mod->sml_numvals = a_new->a_numvals;
552 
553 		mod->sml_values = (struct berval*) ch_malloc(
554 			(count+1) * sizeof( struct berval) );
555 
556 		/* see slap_mods_check() comments...
557 		 * if a_vals == a_nvals, there is no normalizer.
558 		 * in this case, mod->sml_nvalues must be left NULL.
559 		 */
560 		if ( a_new->a_vals != a_new->a_nvals ) {
561 			mod->sml_nvalues = (struct berval*) ch_malloc(
562 				(count+1) * sizeof( struct berval) );
563 		} else {
564 			mod->sml_nvalues = NULL;
565 		}
566 
567 		for ( i = 0; i < count; i++ ) {
568 			ber_dupbv(mod->sml_values+i, a_new->a_vals+i);
569 			if ( mod->sml_nvalues ) {
570 				ber_dupbv( mod->sml_nvalues+i, a_new->a_nvals+i );
571 			}
572 		}
573 
574 		mod->sml_values[count].bv_val = NULL;
575 		mod->sml_values[count].bv_len = 0;
576 
577 		if ( mod->sml_nvalues ) {
578 			mod->sml_nvalues[count].bv_val = NULL;
579 			mod->sml_nvalues[count].bv_len = 0;
580 		}
581 
582 		mod->sml_desc = a_new_desc;
583 		mod->sml_next =NULL;
584 		*modtail = mod;
585 		modtail = &mod->sml_next;
586 		a_new = a_new->a_next;
587 	}
588 
589 	*mods = modhead;
590 
591 	return LDAP_SUCCESS;
592 }
593 
slap_add_opattrs(Operation * op,const char ** text,char * textbuf,size_t textlen,int manage_ctxcsn)594 int slap_add_opattrs(
595 	Operation *op,
596 	const char **text,
597 	char *textbuf,
598 	size_t textlen,
599 	int manage_ctxcsn )
600 {
601 	struct berval name, timestamp, csn = BER_BVNULL;
602 	struct berval nname, tmp;
603 	char timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
604 	char csnbuf[ LDAP_PVT_CSNSTR_BUFSIZE ];
605 	Attribute *a;
606 
607 	if ( SLAP_LASTMOD( op->o_bd ) ) {
608 		char *ptr;
609 		int gotcsn = 0;
610 
611 		timestamp.bv_val = timebuf;
612 		a = attr_find( op->ora_e->e_attrs, slap_schema.si_ad_entryCSN );
613 		if ( a ) {
614 			gotcsn = 1;
615 			csn = a->a_vals[0];
616 		}
617 		if ( BER_BVISEMPTY( &op->o_csn )) {
618 			if ( !gotcsn ) {
619 				csn.bv_val = csnbuf;
620 				csn.bv_len = sizeof(csnbuf);
621 				slap_get_csn( op, &csn, manage_ctxcsn );
622 			} else {
623 				if ( manage_ctxcsn )
624 					slap_queue_csn( op, &csn );
625 			}
626 		} else {
627 			csn = op->o_csn;
628 		}
629 		ptr = ber_bvchr( &csn, '#' );
630 		if ( ptr ) {
631 			timestamp.bv_len = STRLENOF("YYYYMMDDHHMMSSZ");
632 			AC_MEMCPY( timebuf, csn.bv_val, timestamp.bv_len );
633 			timebuf[timestamp.bv_len-1] = 'Z';
634 			timebuf[timestamp.bv_len] = '\0';
635 		} else {
636 			time_t now = slap_get_time();
637 
638 			timestamp.bv_len = sizeof(timebuf);
639 
640 			slap_timestamp( &now, &timestamp );
641 		}
642 
643 		if ( BER_BVISEMPTY( &op->o_dn ) ) {
644 			BER_BVSTR( &name, SLAPD_ANONYMOUS );
645 			nname = name;
646 		} else {
647 			name = op->o_dn;
648 			nname = op->o_ndn;
649 		}
650 
651 		a = attr_find( op->ora_e->e_attrs,
652 			slap_schema.si_ad_entryUUID );
653 		if ( !a ) {
654 			char uuidbuf[ LDAP_LUTIL_UUIDSTR_BUFSIZE ];
655 
656 			tmp.bv_len = lutil_uuidstr( uuidbuf, sizeof( uuidbuf ) );
657 			tmp.bv_val = uuidbuf;
658 
659 			attr_merge_normalize_one( op->ora_e,
660 				slap_schema.si_ad_entryUUID, &tmp, op->o_tmpmemctx );
661 		}
662 
663 		a = attr_find( op->ora_e->e_attrs,
664 			slap_schema.si_ad_creatorsName );
665 		if ( !a ) {
666 			attr_merge_one( op->ora_e,
667 				slap_schema.si_ad_creatorsName, &name, &nname );
668 		}
669 
670 		a = attr_find( op->ora_e->e_attrs,
671 			slap_schema.si_ad_createTimestamp );
672 		if ( !a ) {
673 			attr_merge_one( op->ora_e,
674 				slap_schema.si_ad_createTimestamp, &timestamp, NULL );
675 		}
676 
677 		if ( !gotcsn ) {
678 			attr_merge_one( op->ora_e,
679 				slap_schema.si_ad_entryCSN, &csn, NULL );
680 		}
681 
682 		a = attr_find( op->ora_e->e_attrs,
683 			slap_schema.si_ad_modifiersName );
684 		if ( !a ) {
685 			attr_merge_one( op->ora_e,
686 				slap_schema.si_ad_modifiersName, &name, &nname );
687 		}
688 
689 		a = attr_find( op->ora_e->e_attrs,
690 			slap_schema.si_ad_modifyTimestamp );
691 		if ( !a ) {
692 			attr_merge_one( op->ora_e,
693 				slap_schema.si_ad_modifyTimestamp, &timestamp, NULL );
694 		}
695 	}
696 
697 	return LDAP_SUCCESS;
698 }
699