3 * Copyright 1998-2000 The OpenLDAP Foundation, All Rights Reserved.
4 * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
7 * Copyright (c) 1995 Regents of the University of Michigan.
10 * Redistribution and use in source and binary forms are permitted
11 * provided that this notice is preserved and that due credit is given
12 * to the University of Michigan at Ann Arbor. The name of the University
13 * may not be used to endorse or promote products derived from this
14 * software without specific prior written permission. This software
15 * is provided ``as is'' without express or implied warranty.
22 #include <ac/socket.h>
23 #include <ac/string.h>
35 char *dn, *ndn = NULL;
39 LDAPModList *modlist = NULL;
40 LDAPModList **modtail = &modlist;
44 Modifications *mods = NULL;
51 LDAP_LOG(( "operation", LDAP_LEVEL_ENTRY,
52 "do_modify: enter\n" ));
54 Debug( LDAP_DEBUG_TRACE, "do_modify\n", 0, 0, 0 );
58 * Parse the modify request. It looks like this:
60 * ModifyRequest := [APPLICATION 6] SEQUENCE {
61 * name DistinguishedName,
62 * mods SEQUENCE OF SEQUENCE {
63 * operation ENUMERATED {
68 * modification SEQUENCE {
70 * values SET OF AttributeValue
76 if ( ber_scanf( op->o_ber, "{a" /*}*/, &dn ) == LBER_ERROR ) {
78 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
79 "do_modify: ber_scanf failed\n" ));
81 Debug( LDAP_DEBUG_ANY, "do_modify: ber_scanf failed\n", 0, 0, 0 );
84 send_ldap_disconnect( conn, op,
85 LDAP_PROTOCOL_ERROR, "decoding error" );
86 return SLAPD_DISCONNECT;
90 LDAP_LOG(( "operation", LDAP_LEVEL_ARGS,
91 "do_modify: dn (%s)\n", dn ));
93 Debug( LDAP_DEBUG_ARGS, "do_modify: dn (%s)\n", dn, 0, 0 );
97 /* collect modifications & save for later */
99 for ( tag = ber_first_element( op->o_ber, &len, &last );
101 tag = ber_next_element( op->o_ber, &len, last ) )
105 (*modtail) = (LDAPModList *) ch_calloc( 1, sizeof(LDAPModList) );
107 if ( ber_scanf( op->o_ber, "{i{a[V]}}", &mop,
108 &(*modtail)->ml_type, &(*modtail)->ml_bvalues )
111 send_ldap_disconnect( conn, op,
112 LDAP_PROTOCOL_ERROR, "decoding modlist error" );
113 rc = SLAPD_DISCONNECT;
119 if ( (*modtail)->ml_bvalues == NULL ) {
121 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
122 "do_modify: modify/add operation (%ld) requires values\n",
125 Debug( LDAP_DEBUG_ANY,
126 "do_modify: modify/add operation (%ld) requires values\n",
130 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
131 NULL, "modify/add operation requires values",
133 rc = LDAP_PROTOCOL_ERROR;
139 case LDAP_MOD_DELETE:
140 case LDAP_MOD_REPLACE:
145 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
146 "do_modify: invalid modify operation (%ld)\n",
149 Debug( LDAP_DEBUG_ANY,
150 "do_modify: invalid modify operation (%ld)\n",
154 send_ldap_result( conn, op, LDAP_PROTOCOL_ERROR,
155 NULL, "unrecognized modify operation", NULL, NULL );
156 rc = LDAP_PROTOCOL_ERROR;
161 (*modtail)->ml_op = mop;
162 modtail = &(*modtail)->ml_next;
166 if( (rc = get_ctrls( conn, op, 1 )) != LDAP_SUCCESS ) {
168 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
169 "do_modify: get_ctrls failed\n" ));
171 Debug( LDAP_DEBUG_ANY, "do_modify: get_ctrls failed\n", 0, 0, 0 );
177 ndn = ch_strdup( dn );
179 if( dn_normalize( ndn ) == NULL ) {
181 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
182 "do_modify: invalid dn (%s)\n", dn ));
184 Debug( LDAP_DEBUG_ANY, "do_modify: invalid dn (%s)\n", dn, 0, 0 );
187 send_ldap_result( conn, op, rc = LDAP_INVALID_DN_SYNTAX, NULL,
188 "invalid DN", NULL, NULL );
194 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
195 "do_modify: attempt to modify root DSE.\n" ));
197 Debug( LDAP_DEBUG_ANY, "do_modify: root dse!\n", 0, 0, 0 );
200 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
201 NULL, "modify upon the root DSE not supported", NULL, NULL );
204 #if defined( SLAPD_SCHEMA_DN )
205 } else if ( strcasecmp( ndn, SLAPD_SCHEMA_DN ) == 0 ) {
207 LDAP_LOG(( "operation", LDAP_LEVEL_ERR,
208 "do_modify: attempt to modify subschema subentry.\n" ));
210 Debug( LDAP_DEBUG_ANY, "do_modify: subschema subentry!\n", 0, 0, 0 );
213 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
214 NULL, "modification of subschema subentry not supported",
222 LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
223 "do_modify: modifications:\n" ));
225 Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
228 for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
230 LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
231 "\t%s: %s\n", tmp->ml_op == LDAP_MOD_ADD ?
232 "add" : (tmp->ml_op == LDAP_MOD_DELETE ?
233 "delete" : "replace"), tmp->ml_type ));
235 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
236 tmp->ml_op == LDAP_MOD_ADD
237 ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
238 ? "delete" : "replace"), tmp->ml_type, 0 );
244 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MOD dn=\"%s\"\n",
245 op->o_connid, op->o_opid, dn, 0, 0 );
247 manageDSAit = get_manageDSAit( op );
250 * We could be serving multiple database backends. Select the
251 * appropriate one, or send a referral to our "referral server"
252 * if we don't hold it.
254 if ( (be = select_backend( ndn, manageDSAit )) == NULL ) {
255 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
256 NULL, NULL, default_referral, NULL );
260 /* check restrictions */
261 rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
262 if( rc != LDAP_SUCCESS ) {
263 send_ldap_result( conn, op, rc,
264 NULL, text, NULL, NULL );
268 /* check for referrals */
269 rc = backend_check_referrals( be, conn, op, dn, ndn );
270 if ( rc != LDAP_SUCCESS ) {
274 /* deref suffix alias if appropriate */
275 ndn = suffix_alias( be, ndn );
278 * do the modify if 1 && (2 || 3)
279 * 1) there is a modify function implemented in this backend;
280 * 2) this backend is master for what it holds;
281 * 3) it's a replica and the dn supplied is the update_ndn.
283 if ( be->be_modify ) {
284 /* do the update here */
285 int repl_user = (be->be_update_ndn != NULL &&
286 strcmp( be->be_update_ndn, op->o_ndn ) == 0);
287 #ifndef SLAPD_MULTIMASTER
288 /* Multimaster slapd does not have to check for replicator dn
289 * because it accepts each modify request
291 if ( be->be_update_ndn == NULL || repl_user )
294 int update = be->be_update_ndn != NULL;
296 char textbuf[SLAP_TEXT_BUFLEN];
297 size_t textlen = sizeof textbuf;
299 rc = slap_modlist2mods( modlist, update, &mods, &text,
302 if( rc != LDAP_SUCCESS ) {
303 send_ldap_result( conn, op, rc,
304 NULL, text, NULL, NULL );
308 if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
309 global_lastmod == ON)) && !repl_user )
311 Modifications **modstail;
312 for( modstail = &mods;
314 modstail = &(*modstail)->sml_next )
318 rc = slap_mods_opattrs( op, modstail, &text );
320 if( rc != LDAP_SUCCESS ) {
321 send_ldap_result( conn, op, rc,
328 if ( (*be->be_modify)( be, conn, op, dn, ndn, mods ) == 0
329 #ifdef SLAPD_MULTIMASTER
333 /* but we log only the ones not from a replicator user */
334 replog( be, op, dn, mods );
337 #ifndef SLAPD_MULTIMASTER
338 /* send a referral */
340 send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
341 be->be_update_refs ? be->be_update_refs : default_referral,
346 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
347 NULL, "operation not supported within namingContext", NULL, NULL );
352 if( ndn != NULL ) free( ndn );
353 if ( modlist != NULL )
354 slap_modlist_free( modlist );
356 slap_mods_free( mods );
361 * convert a raw list of modifications to internal format
362 * Do basic attribute type checking and syntax validation.
364 int slap_modlist2mods(
367 Modifications **mods,
373 Modifications **modtail = mods;
375 for( ; ml != NULL; ml = ml->ml_next ) {
377 AttributeDescription *ad = NULL;
379 mod = (Modifications *)
380 ch_calloc( 1, sizeof(Modifications) );
383 mod->sml_op = ml->ml_op;
385 /* convert to attribute description */
386 rc = slap_str2ad( ml->ml_type, &mod->sml_desc, text );
388 if( rc != LDAP_SUCCESS ) {
389 slap_mods_free( mod );
390 snprintf( textbuf, textlen, "%s: %s",
391 ml->ml_type, *text );
398 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
399 && !slap_ad_is_binary( ad ))
401 /* attribute requires binary transfer */
402 slap_mods_free( mod );
404 snprintf( textbuf, textlen,
405 "%s: requires ;binary transfer",
408 return LDAP_UNDEFINED_TYPE;
411 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
412 && slap_ad_is_binary( ad ))
414 /* attribute requires binary transfer */
415 slap_mods_free( mod );
416 snprintf( textbuf, textlen,
417 "%s: disallows ;binary transfer",
420 return LDAP_UNDEFINED_TYPE;
423 if (!update && is_at_no_user_mod( ad->ad_type )) {
424 /* user modification disallowed */
425 slap_mods_free( mod );
426 snprintf( textbuf, textlen,
427 "%s: no user modification allowed",
430 return LDAP_CONSTRAINT_VIOLATION;
433 if ( is_at_obsolete( ad->ad_type ) &&
434 ( mod->sml_op == LDAP_MOD_ADD || ml->ml_bvalues != NULL ) )
437 * attribute is obsolete,
438 * only allow replace/delete with no values
440 slap_mods_free( mod );
441 snprintf( textbuf, textlen,
442 "%s: attribute is obsolete",
445 return LDAP_CONSTRAINT_VIOLATION;
451 if( ml->ml_bvalues != NULL ) {
453 slap_syntax_validate_func *validate =
454 ad->ad_type->sat_syntax->ssyn_validate;
457 slap_mods_free( mod );
458 *text = "no validator for syntax";
459 snprintf( textbuf, textlen,
460 "%s: no validator for syntax %s",
462 ad->ad_type->sat_syntax->ssyn_oid );
464 return LDAP_INVALID_SYNTAX;
468 * check that each value is valid per syntax
470 for( nvals = 0; ml->ml_bvalues[nvals]; nvals++ ) {
471 rc = validate( ad->ad_type->sat_syntax, ml->ml_bvalues[nvals] );
474 slap_mods_free( mod );
475 snprintf( textbuf, textlen,
476 "%s: value #%ld invalid per syntax",
477 ml->ml_type, (long) nvals );
479 return LDAP_INVALID_SYNTAX;
484 * a rough single value check... an additional check is needed
485 * to catch add of single value to existing single valued attribute
487 if( ( mod->sml_op == LDAP_MOD_ADD || mod->sml_op == LDAP_MOD_REPLACE )
488 && nvals > 1 && is_at_single_value( ad->ad_type ))
490 slap_mods_free( mod );
491 snprintf( textbuf, textlen,
492 "%s: multiple value provided",
495 return LDAP_CONSTRAINT_VIOLATION;
499 mod->sml_bvalues = ml->ml_bvalues;
500 ml->ml_values = NULL;
503 modtail = &mod->sml_next;
509 int slap_mods_opattrs(
511 Modifications **modtail,
514 struct berval name, timestamp;
515 time_t now = slap_get_time();
520 int mop = op->o_tag == LDAP_REQ_ADD
521 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
523 assert( modtail != NULL );
524 assert( *modtail == NULL );
526 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
527 ltm = gmtime( &now );
528 strftime( timebuf, sizeof(timebuf), "%Y%m%d%H%M%SZ", ltm );
529 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
530 timestamp.bv_val = timebuf;
531 timestamp.bv_len = strlen(timebuf);
533 if( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
534 name.bv_val = SLAPD_ANONYMOUS;
535 name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
537 name.bv_val = op->o_dn;
538 name.bv_len = strlen( op->o_dn );
541 if( op->o_tag == LDAP_REQ_ADD ) {
542 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
544 mod->sml_desc = ad_dup( slap_schema.si_ad_creatorsName );
545 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
546 mod->sml_bvalues[0] = ber_bvdup( &name );
547 mod->sml_bvalues[1] = NULL;
550 modtail = &mod->sml_next;
552 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
554 mod->sml_desc = ad_dup( slap_schema.si_ad_createTimestamp );
555 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
556 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
557 mod->sml_bvalues[1] = NULL;
559 modtail = &mod->sml_next;
562 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
564 mod->sml_desc = ad_dup( slap_schema.si_ad_modifiersName );
565 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
566 mod->sml_bvalues[0] = ber_bvdup( &name );
567 mod->sml_bvalues[1] = NULL;
569 modtail = &mod->sml_next;
571 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
573 mod->sml_desc = ad_dup( slap_schema.si_ad_modifyTimestamp );
574 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
575 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
576 mod->sml_bvalues[1] = NULL;
578 modtail = &mod->sml_next;