1 /* modify.c - bdb backend modify routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2004 The OpenLDAP Foundation.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted only as authorized by the OpenLDAP
12 * A copy of this license is available in the file LICENSE in the
13 * top-level directory of the distribution or, alternatively, at
14 * <http://www.OpenLDAP.org/license.html>.
20 #include <ac/string.h>
26 static struct berval scbva[] = {
31 int bdb_modify_internal(
34 Modifications *modlist,
43 Attribute *save_attrs;
45 int glue_attr_delete = 0;
47 Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
50 if ( !acl_check_modlist( op, e, modlist )) {
51 return LDAP_INSUFFICIENT_ACCESS;
54 /* save_attrs will be disposed of by bdb_cache_modify */
55 save_attrs = e->e_attrs;
56 e->e_attrs = attrs_dup( e->e_attrs );
58 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
61 switch( mod->sm_op ) {
63 case LDAP_MOD_REPLACE:
64 if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
65 value_match( &match, slap_schema.si_ad_structuralObjectClass,
66 slap_schema.si_ad_structuralObjectClass->ad_type->sat_equality,
67 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
68 &mod->sm_values[0], &scbva[0], text );
73 if ( glue_attr_delete )
77 if ( glue_attr_delete ) {
78 Attribute **app = &e->e_attrs;
79 while ( *app != NULL ) {
80 if ( !is_at_operational( (*app)->a_desc->ad_type )) {
81 Attribute *save = *app;
82 *app = (*app)->a_next;
86 app = &(*app)->a_next;
90 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
93 switch ( mod->sm_op ) {
95 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: add\n", 0, 0, 0);
96 err = modify_add_values( e, mod, get_permissiveModify(op),
97 text, textbuf, textlen );
98 if( err != LDAP_SUCCESS ) {
99 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
104 case LDAP_MOD_DELETE:
105 if ( glue_attr_delete ) {
110 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: delete\n", 0, 0, 0);
111 err = modify_delete_values( e, mod, get_permissiveModify(op),
112 text, textbuf, textlen );
113 assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
114 if( err != LDAP_SUCCESS ) {
115 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
120 case LDAP_MOD_REPLACE:
121 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: replace\n", 0, 0, 0);
122 err = modify_replace_values( e, mod, get_permissiveModify(op),
123 text, textbuf, textlen );
124 if( err != LDAP_SUCCESS ) {
125 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
130 case LDAP_MOD_INCREMENT:
131 Debug(LDAP_DEBUG_ARGS,
132 "bdb_modify_internal: increment\n", 0, 0, 0);
133 err = modify_increment_values( e, mod, get_permissiveModify(op),
134 text, textbuf, textlen );
135 if( err != LDAP_SUCCESS ) {
136 Debug(LDAP_DEBUG_ARGS,
137 "bdb_modify_internal: %d %s\n",
142 case SLAP_MOD_SOFTADD:
143 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: softadd\n", 0, 0, 0);
144 /* Avoid problems in index_add_mods()
145 * We need to add index if necessary.
147 mod->sm_op = LDAP_MOD_ADD;
149 err = modify_add_values( e, mod, get_permissiveModify(op),
150 text, textbuf, textlen );
152 mod->sm_op = SLAP_MOD_SOFTADD;
154 if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
158 if( err != LDAP_SUCCESS ) {
159 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
165 Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
167 *text = "Invalid modify operation";
169 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
173 if ( err != LDAP_SUCCESS ) {
174 attrs_free( e->e_attrs );
175 e->e_attrs = save_attrs;
176 /* unlock entry, delete from cache */
180 /* If objectClass was modified, reset the flags */
181 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
185 if ( glue_attr_delete ) {
189 /* check if modified attribute was indexed
190 * but not in case of NOOP... */
191 err = bdb_index_is_indexed( op->o_bd, mod->sm_desc );
192 if ( err == LDAP_SUCCESS && !op->o_noop ) {
193 ap = attr_find( save_attrs, mod->sm_desc );
194 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
196 ap = attr_find( e->e_attrs, mod->sm_desc );
197 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
201 /* check that the entry still obeys the schema */
202 rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
203 if ( rc != LDAP_SUCCESS || op->o_noop ) {
204 attrs_free( e->e_attrs );
205 /* clear the indexing flags */
206 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
209 e->e_attrs = save_attrs;
211 if ( rc != LDAP_SUCCESS ) {
212 Debug( LDAP_DEBUG_ANY,
213 "entry failed schema check: %s\n",
217 /* if NOOP then silently revert to saved attrs */
221 /* update the indices of the modified attributes */
223 /* start with deleting the old index entries */
224 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
225 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
226 rc = bdb_index_values( op, tid, ap->a_desc,
228 e->e_id, SLAP_INDEX_DELETE_OP );
229 if ( rc != LDAP_SUCCESS ) {
230 attrs_free( e->e_attrs );
231 e->e_attrs = save_attrs;
232 Debug( LDAP_DEBUG_ANY,
233 "Attribute index delete failure",
237 ap->a_flags &= ~SLAP_ATTR_IXDEL;
241 /* add the new index entries */
242 for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
243 if (ap->a_flags & SLAP_ATTR_IXADD) {
244 rc = bdb_index_values( op, tid, ap->a_desc,
246 e->e_id, SLAP_INDEX_ADD_OP );
247 if ( rc != LDAP_SUCCESS ) {
248 attrs_free( e->e_attrs );
249 e->e_attrs = save_attrs;
250 Debug( LDAP_DEBUG_ANY,
251 "Attribute index add failure",
255 ap->a_flags &= ~SLAP_ATTR_IXADD;
264 bdb_modify( Operation *op, SlapReply *rs )
266 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
268 EntryInfo *ei = NULL;
269 int manageDSAit = get_manageDSAit( op );
270 char textbuf[SLAP_TEXT_BUFLEN];
271 size_t textlen = sizeof textbuf;
272 DB_TXN *ltid = NULL, *lt2;
273 struct bdb_op_info opinfo;
276 u_int32_t locker = 0;
281 LDAPControl **preread_ctrl = NULL;
282 LDAPControl **postread_ctrl = NULL;
283 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
287 struct psid_entry *pm_list, *pm_prev;
289 EntryInfo *suffix_ei;
291 int ctxcsn_added = 0;
293 Debug( LDAP_DEBUG_ARGS, "bdb_modify: %s\n",
294 op->o_req_dn.bv_val, 0, 0 );
296 ctrls[num_ctrls] = NULL;
299 retry: /* transaction retry */
300 if ( dummy.e_attrs ) {
301 attrs_free( dummy.e_attrs );
302 dummy.e_attrs = NULL;
305 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
308 Debug(LDAP_DEBUG_TRACE,
309 "bdb_modify: retrying...\n", 0, 0, 0);
311 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
312 while ( pm_list != NULL ) {
313 LDAP_LIST_REMOVE ( pm_list, ps_link );
315 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
319 rs->sr_err = TXN_ABORT( ltid );
321 op->o_private = NULL;
322 op->o_do_not_cache = opinfo.boi_acl_cache;
323 if( rs->sr_err != 0 ) {
324 rs->sr_err = LDAP_OTHER;
325 rs->sr_text = "internal error";
328 ldap_pvt_thread_yield();
329 bdb_trans_backoff( ++num_retries );
332 /* begin transaction */
333 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
334 bdb->bi_db_opflags );
336 if( rs->sr_err != 0 ) {
337 Debug( LDAP_DEBUG_TRACE,
338 "bdb_modify: txn_begin failed: %s (%d)\n",
339 db_strerror(rs->sr_err), rs->sr_err, 0 );
340 rs->sr_err = LDAP_OTHER;
341 rs->sr_text = "internal error";
345 locker = TXN_ID ( ltid );
347 opinfo.boi_bdb = op->o_bd;
348 opinfo.boi_txn = ltid;
349 opinfo.boi_locker = locker;
351 opinfo.boi_acl_cache = op->o_do_not_cache;
352 op->o_private = &opinfo;
354 /* get entry or ancestor */
355 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
358 if ( rs->sr_err != 0 ) {
359 Debug( LDAP_DEBUG_TRACE,
360 "bdb_modify: dn2entry failed (%d)\n",
362 switch( rs->sr_err ) {
363 case DB_LOCK_DEADLOCK:
364 case DB_LOCK_NOTGRANTED:
369 rs->sr_text = "ldap server busy";
372 rs->sr_err = LDAP_OTHER;
373 rs->sr_text = "internal error";
379 /* acquire and lock entry */
380 /* FIXME: dn2entry() should return non-glue entry */
381 if (( rs->sr_err == DB_NOTFOUND ) ||
382 ( !manageDSAit && e && is_entry_glue( e )))
385 rs->sr_matched = ch_strdup( e->e_dn );
386 rs->sr_ref = is_entry_referral( e )
387 ? get_entry_referrals( op, e )
389 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
393 BerVarray deref = NULL;
394 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
396 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
398 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
399 ber_bvarray_add( &deref, &tmpbv );
402 deref = default_referral;
404 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
405 LDAP_SCOPE_DEFAULT );
408 rs->sr_err = LDAP_REFERRAL;
409 send_ldap_result( op, rs );
411 if ( rs->sr_ref != default_referral ) {
412 ber_bvarray_free( rs->sr_ref );
414 free( (char *)rs->sr_matched );
416 rs->sr_matched = NULL;
421 if ( !manageDSAit && is_entry_referral( e ) ) {
422 /* entry is a referral, don't allow modify */
423 rs->sr_ref = get_entry_referrals( op, e );
425 Debug( LDAP_DEBUG_TRACE,
426 "bdb_modify: entry is referral\n",
429 rs->sr_err = LDAP_REFERRAL;
430 rs->sr_matched = e->e_name.bv_val;
431 send_ldap_result( op, rs );
433 ber_bvarray_free( rs->sr_ref );
435 rs->sr_matched = NULL;
439 if ( get_assert( op ) &&
440 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
442 rs->sr_err = LDAP_ASSERTION_FAILED;
446 if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop && !op->o_no_psearch ) {
447 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
448 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
449 rc = bdb_psearch(op, rs, ps_list, e, LDAP_PSEARCH_BY_PREMODIFY );
451 Debug( LDAP_DEBUG_TRACE,
452 "bdb_modify: persistent search failed (%d,%d)\n",
456 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
459 if( op->o_preread ) {
460 if( preread_ctrl == NULL ) {
461 preread_ctrl = &ctrls[num_ctrls++];
462 ctrls[num_ctrls] = NULL;
464 if ( slap_read_controls( op, rs, e,
465 &slap_pre_read_bv, preread_ctrl ) )
467 Debug( LDAP_DEBUG_TRACE,
468 "<=- bdb_modify: pre-read failed!\n", 0, 0, 0 );
473 /* nested transaction */
474 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
475 bdb->bi_db_opflags );
477 if( rs->sr_err != 0 ) {
478 Debug( LDAP_DEBUG_TRACE,
479 "bdb_modify: txn_begin(2) failed: %s (%d)\n",
480 db_strerror(rs->sr_err), rs->sr_err, 0 );
481 rs->sr_err = LDAP_OTHER;
482 rs->sr_text = "internal error";
485 /* Modify the entry */
487 rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
488 &dummy, &rs->sr_text, textbuf, textlen );
490 if( rs->sr_err != LDAP_SUCCESS ) {
491 Debug( LDAP_DEBUG_TRACE,
492 "bdb_modify: modify failed (%d)\n",
494 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
495 rs->sr_err = opinfo.boi_err;
497 /* Only free attrs if they were dup'd. */
498 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
499 switch( rs->sr_err ) {
500 case DB_LOCK_DEADLOCK:
501 case DB_LOCK_NOTGRANTED:
507 /* change the entry itself */
508 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
509 if ( rs->sr_err != 0 ) {
510 Debug( LDAP_DEBUG_TRACE,
511 "bdb_modify: id2entry update failed (%d)\n",
513 switch( rs->sr_err ) {
514 case DB_LOCK_DEADLOCK:
515 case DB_LOCK_NOTGRANTED:
518 rs->sr_text = "entry update failed";
522 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
523 rs->sr_err = LDAP_OTHER;
524 rs->sr_text = "txn_commit(2) failed";
528 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
529 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
530 &ctxcsn_e, &ctxcsn_added, locker );
539 if( op->o_postread ) {
540 if( postread_ctrl == NULL ) {
541 postread_ctrl = &ctrls[num_ctrls++];
542 ctrls[num_ctrls] = NULL;
544 if( slap_read_controls( op, rs, &dummy,
545 &slap_post_read_bv, postread_ctrl ) )
547 Debug( LDAP_DEBUG_TRACE,
548 "<=- bdb_modify: post-read failed!\n", 0, 0, 0 );
554 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
555 rs->sr_text = "txn_abort (no-op) failed";
557 rs->sr_err = LDAP_NO_OPERATION;
561 rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
563 case DB_LOCK_DEADLOCK:
564 case DB_LOCK_NOTGRANTED:
567 dummy.e_attrs = NULL;
569 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
570 if ( ctxcsn_added ) {
571 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
572 (struct berval *)&slap_ldapsync_cn_bv, locker );
576 if ( rs->sr_err == LDAP_SUCCESS ) {
577 /* Loop through in-scope entries for each psearch spec */
578 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
579 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
580 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
582 Debug( LDAP_DEBUG_TRACE,
583 "bdb_modify: persistent search failed (%d,%d)\n",
587 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
588 while ( pm_list != NULL ) {
589 rc = bdb_psearch(op, rs, pm_list->ps_op,
590 e, LDAP_PSEARCH_BY_SCOPEOUT);
592 Debug( LDAP_DEBUG_TRACE,
593 "bdb_modify: persistent search failed (%d,%d)\n",
596 LDAP_LIST_REMOVE ( pm_list, ps_link );
598 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
601 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
604 rs->sr_err = TXN_COMMIT( ltid, 0 );
607 op->o_private = NULL;
609 if( rs->sr_err != 0 ) {
610 Debug( LDAP_DEBUG_TRACE,
611 "bdb_modify: txn_%s failed: %s (%d)\n",
612 op->o_noop ? "abort (no-op)" : "commit",
613 db_strerror(rs->sr_err), rs->sr_err );
614 rs->sr_err = LDAP_OTHER;
615 rs->sr_text = "commit failed";
620 Debug( LDAP_DEBUG_TRACE,
621 "bdb_modify: updated%s id=%08lx dn=\"%s\"\n",
622 op->o_noop ? " (no-op)" : "",
625 rs->sr_err = LDAP_SUCCESS;
627 if( num_ctrls ) rs->sr_ctrls = ctrls;
630 if( dummy.e_attrs ) {
631 attrs_free( dummy.e_attrs );
633 send_ldap_result( op, rs );
635 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
636 ldap_pvt_thread_yield();
637 TXN_CHECKPOINT( bdb->bi_dbenv,
638 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
643 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
644 while ( pm_list != NULL ) {
645 LDAP_LIST_REMOVE ( pm_list, ps_link );
647 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
651 op->o_private = NULL;
655 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
658 if( preread_ctrl != NULL ) {
659 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
660 slap_sl_free( *preread_ctrl, &op->o_tmpmemctx );
662 if( postread_ctrl != NULL ) {
663 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, &op->o_tmpmemctx );
664 slap_sl_free( *postread_ctrl, &op->o_tmpmemctx );