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
41int
42do_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
224done:;
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
239int
240fe_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
390done:;
391	op->o_bd = bd;
392	return rc;
393}
394
395int
396slap_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
525int
526slap_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
594int 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