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 );
207 LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
208 "do_modify: modifications:\n" ));
210 Debug( LDAP_DEBUG_ARGS, "modifications:\n", 0, 0, 0 );
213 for ( tmp = modlist; tmp != NULL; tmp = tmp->ml_next ) {
215 LDAP_LOG(( "operation", LDAP_LEVEL_DETAIL1,
216 "\t%s: %s\n", tmp->ml_op == LDAP_MOD_ADD ?
217 "add" : (tmp->ml_op == LDAP_MOD_DELETE ?
218 "delete" : "replace"), tmp->ml_type ));
220 Debug( LDAP_DEBUG_ARGS, "\t%s: %s\n",
221 tmp->ml_op == LDAP_MOD_ADD
222 ? "add" : (tmp->ml_op == LDAP_MOD_DELETE
223 ? "delete" : "replace"), tmp->ml_type, 0 );
229 Statslog( LDAP_DEBUG_STATS, "conn=%ld op=%d MOD dn=\"%s\"\n",
230 op->o_connid, op->o_opid, dn, 0, 0 );
232 manageDSAit = get_manageDSAit( op );
235 * We could be serving multiple database backends. Select the
236 * appropriate one, or send a referral to our "referral server"
237 * if we don't hold it.
239 if ( (be = select_backend( ndn, manageDSAit )) == NULL ) {
240 send_ldap_result( conn, op, rc = LDAP_REFERRAL,
241 NULL, NULL, default_referral, NULL );
245 /* check restrictions */
246 rc = backend_check_restrictions( be, conn, op, NULL, &text ) ;
247 if( rc != LDAP_SUCCESS ) {
248 send_ldap_result( conn, op, rc,
249 NULL, text, NULL, NULL );
253 /* check for referrals */
254 rc = backend_check_referrals( be, conn, op, dn, ndn );
255 if ( rc != LDAP_SUCCESS ) {
259 /* deref suffix alias if appropriate */
260 ndn = suffix_alias( be, ndn );
263 * do the modify if 1 && (2 || 3)
264 * 1) there is a modify function implemented in this backend;
265 * 2) this backend is master for what it holds;
266 * 3) it's a replica and the dn supplied is the update_ndn.
268 if ( be->be_modify ) {
269 /* do the update here */
270 int repl_user = (be->be_update_ndn != NULL &&
271 strcmp( be->be_update_ndn, op->o_ndn ) == 0);
272 #ifndef SLAPD_MULTIMASTER
273 /* Multimaster slapd does not have to check for replicator dn
274 * because it accepts each modify request
276 if ( be->be_update_ndn == NULL || repl_user )
279 int update = be->be_update_ndn != NULL;
281 char textbuf[SLAP_TEXT_BUFLEN];
282 size_t textlen = sizeof textbuf;
284 rc = slap_modlist2mods( modlist, update, &mods, &text,
287 if( rc != LDAP_SUCCESS ) {
288 send_ldap_result( conn, op, rc,
289 NULL, text, NULL, NULL );
293 if ( (be->be_lastmod == ON || (be->be_lastmod == UNDEFINED &&
294 global_lastmod == ON)) && !repl_user )
296 Modifications **modstail;
297 for( modstail = &mods;
299 modstail = &(*modstail)->sml_next )
303 rc = slap_mods_opattrs( op, modstail, &text );
305 if( rc != LDAP_SUCCESS ) {
306 send_ldap_result( conn, op, rc,
313 if ( (*be->be_modify)( be, conn, op, dn, ndn, mods ) == 0
314 #ifdef SLAPD_MULTIMASTER
318 /* but we log only the ones not from a replicator user */
319 replog( be, op, dn, mods );
322 #ifndef SLAPD_MULTIMASTER
323 /* send a referral */
325 send_ldap_result( conn, op, rc = LDAP_REFERRAL, NULL, NULL,
326 be->be_update_refs ? be->be_update_refs : default_referral,
331 send_ldap_result( conn, op, rc = LDAP_UNWILLING_TO_PERFORM,
332 NULL, "operation not supported within namingContext", NULL, NULL );
337 if( ndn != NULL ) free( ndn );
338 if ( modlist != NULL )
339 slap_modlist_free( modlist );
341 slap_mods_free( mods );
346 * convert a raw list of modifications to internal format
347 * Do basic attribute type checking and syntax validation.
349 int slap_modlist2mods(
352 Modifications **mods,
358 Modifications **modtail = mods;
360 for( ; ml != NULL; ml = ml->ml_next ) {
362 AttributeDescription *ad = NULL;
364 mod = (Modifications *)
365 ch_calloc( 1, sizeof(Modifications) );
368 mod->sml_op = ml->ml_op;
370 /* convert to attribute description */
371 rc = slap_str2ad( ml->ml_type, &mod->sml_desc, text );
373 if( rc != LDAP_SUCCESS ) {
374 slap_mods_free( mod );
375 snprintf( textbuf, textlen, "%s: %s",
376 ml->ml_type, *text );
383 if( slap_syntax_is_binary( ad->ad_type->sat_syntax )
384 && !slap_ad_is_binary( ad ))
386 /* attribute requires binary transfer */
387 slap_mods_free( mod );
389 snprintf( textbuf, textlen,
390 "%s: requires ;binary transfer",
393 return LDAP_UNDEFINED_TYPE;
396 if( !slap_syntax_is_binary( ad->ad_type->sat_syntax )
397 && slap_ad_is_binary( ad ))
399 /* attribute requires binary transfer */
400 slap_mods_free( mod );
401 snprintf( textbuf, textlen,
402 "%s: disallows ;binary transfer",
405 return LDAP_UNDEFINED_TYPE;
408 if (!update && is_at_no_user_mod( ad->ad_type )) {
409 /* user modification disallowed */
410 slap_mods_free( mod );
411 snprintf( textbuf, textlen,
412 "%s: no user modification allowed",
415 return LDAP_CONSTRAINT_VIOLATION;
418 if ( is_at_obsolete( ad->ad_type ) &&
419 ( mod->sml_op == LDAP_MOD_ADD || ml->ml_bvalues != NULL ) )
422 * attribute is obsolete,
423 * only allow replace/delete with no values
425 slap_mods_free( mod );
426 snprintf( textbuf, textlen,
427 "%s: attribute is obsolete",
430 return LDAP_CONSTRAINT_VIOLATION;
436 if( ml->ml_bvalues != NULL ) {
438 slap_syntax_validate_func *validate =
439 ad->ad_type->sat_syntax->ssyn_validate;
442 slap_mods_free( mod );
443 *text = "no validator for syntax";
444 snprintf( textbuf, textlen,
445 "%s: no validator for syntax %s",
447 ad->ad_type->sat_syntax->ssyn_oid );
449 return LDAP_INVALID_SYNTAX;
453 * check that each value is valid per syntax
455 for( nvals = 0; ml->ml_bvalues[nvals]; nvals++ ) {
456 rc = validate( ad->ad_type->sat_syntax, ml->ml_bvalues[nvals] );
459 slap_mods_free( mod );
460 snprintf( textbuf, textlen,
461 "%s: value #%ld invalid per syntax",
462 ml->ml_type, (long) nvals );
464 return LDAP_INVALID_SYNTAX;
469 * a rough single value check... an additional check is needed
470 * to catch add of single value to existing single valued attribute
472 if( ( mod->sml_op == LDAP_MOD_ADD || mod->sml_op == LDAP_MOD_REPLACE )
473 && nvals > 1 && is_at_single_value( ad->ad_type ))
475 slap_mods_free( mod );
476 snprintf( textbuf, textlen,
477 "%s: multiple value provided",
480 return LDAP_CONSTRAINT_VIOLATION;
484 mod->sml_bvalues = ml->ml_bvalues;
485 ml->ml_values = NULL;
488 modtail = &mod->sml_next;
494 int slap_mods_opattrs(
496 Modifications **modtail,
499 struct berval name, timestamp;
500 time_t now = slap_get_time();
505 int mop = op->o_tag == LDAP_REQ_ADD
506 ? LDAP_MOD_ADD : LDAP_MOD_REPLACE;
508 assert( modtail != NULL );
509 assert( *modtail == NULL );
511 ldap_pvt_thread_mutex_lock( &gmtime_mutex );
512 ltm = gmtime( &now );
513 strftime( timebuf, sizeof(timebuf), "%Y%m%d%H%M%SZ", ltm );
514 ldap_pvt_thread_mutex_unlock( &gmtime_mutex );
515 timestamp.bv_val = timebuf;
516 timestamp.bv_len = strlen(timebuf);
518 if( op->o_dn == NULL || op->o_dn[0] == '\0' ) {
519 name.bv_val = SLAPD_ANONYMOUS;
520 name.bv_len = sizeof(SLAPD_ANONYMOUS)-1;
522 name.bv_val = op->o_dn;
523 name.bv_len = strlen( op->o_dn );
526 if( op->o_tag == LDAP_REQ_ADD ) {
527 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
529 mod->sml_desc = ad_dup( slap_schema.si_ad_creatorsName );
530 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
531 mod->sml_bvalues[0] = ber_bvdup( &name );
532 mod->sml_bvalues[1] = NULL;
535 modtail = &mod->sml_next;
537 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
539 mod->sml_desc = ad_dup( slap_schema.si_ad_createTimestamp );
540 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
541 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
542 mod->sml_bvalues[1] = NULL;
544 modtail = &mod->sml_next;
547 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
549 mod->sml_desc = ad_dup( slap_schema.si_ad_modifiersName );
550 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
551 mod->sml_bvalues[0] = ber_bvdup( &name );
552 mod->sml_bvalues[1] = NULL;
554 modtail = &mod->sml_next;
556 mod = (Modifications *) ch_calloc( 1, sizeof( Modifications ) );
558 mod->sml_desc = ad_dup( slap_schema.si_ad_modifyTimestamp );
559 mod->sml_bvalues = (struct berval **) malloc( 2 * sizeof( struct berval * ) );
560 mod->sml_bvalues[0] = ber_bvdup( ×tamp );
561 mod->sml_bvalues[1] = NULL;
563 modtail = &mod->sml_next;