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>
25 static struct berval scbva[] = {
30 int bdb_modify_internal(
33 Modifications *modlist,
42 Attribute *save_attrs;
44 int glue_attr_delete = 0;
46 Debug( LDAP_DEBUG_TRACE, "bdb_modify_internal: 0x%08lx: %s\n",
49 if ( !acl_check_modlist( op, e, modlist )) {
50 return LDAP_INSUFFICIENT_ACCESS;
53 /* save_attrs will be disposed of by bdb_cache_modify */
54 save_attrs = e->e_attrs;
55 e->e_attrs = attrs_dup( e->e_attrs );
57 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
60 switch( mod->sm_op ) {
62 case LDAP_MOD_REPLACE:
63 if ( mod->sm_desc == slap_schema.si_ad_structuralObjectClass ) {
64 value_match( &match, slap_schema.si_ad_structuralObjectClass,
65 slap_schema.si_ad_structuralObjectClass->ad_type->sat_equality,
66 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
67 &mod->sm_values[0], &scbva[0], text );
72 if ( glue_attr_delete )
76 if ( glue_attr_delete ) {
77 Attribute **app = &e->e_attrs;
78 while ( *app != NULL ) {
79 if ( !is_at_operational( (*app)->a_desc->ad_type )) {
80 Attribute *save = *app;
81 *app = (*app)->a_next;
85 app = &(*app)->a_next;
89 for ( ml = modlist; ml != NULL; ml = ml->sml_next ) {
92 switch ( mod->sm_op ) {
94 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: add\n", 0, 0, 0);
95 err = modify_add_values( e, mod, get_permissiveModify(op),
96 text, textbuf, textlen );
97 if( err != LDAP_SUCCESS ) {
98 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
103 case LDAP_MOD_DELETE:
104 if ( glue_attr_delete ) {
109 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: delete\n", 0, 0, 0);
110 err = modify_delete_values( e, mod, get_permissiveModify(op),
111 text, textbuf, textlen );
112 assert( err != LDAP_TYPE_OR_VALUE_EXISTS );
113 if( err != LDAP_SUCCESS ) {
114 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
119 case LDAP_MOD_REPLACE:
120 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: replace\n", 0, 0, 0);
121 err = modify_replace_values( e, mod, get_permissiveModify(op),
122 text, textbuf, textlen );
123 if( err != LDAP_SUCCESS ) {
124 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
129 case LDAP_MOD_INCREMENT:
130 Debug(LDAP_DEBUG_ARGS,
131 "bdb_modify_internal: increment\n", 0, 0, 0);
132 err = modify_increment_values( e, mod, get_permissiveModify(op),
133 text, textbuf, textlen );
134 if( err != LDAP_SUCCESS ) {
135 Debug(LDAP_DEBUG_ARGS,
136 "bdb_modify_internal: %d %s\n",
141 case SLAP_MOD_SOFTADD:
142 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: softadd\n", 0, 0, 0);
143 /* Avoid problems in index_add_mods()
144 * We need to add index if necessary.
146 mod->sm_op = LDAP_MOD_ADD;
148 err = modify_add_values( e, mod, get_permissiveModify(op),
149 text, textbuf, textlen );
151 mod->sm_op = SLAP_MOD_SOFTADD;
153 if ( err == LDAP_TYPE_OR_VALUE_EXISTS ) {
157 if( err != LDAP_SUCCESS ) {
158 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
164 Debug(LDAP_DEBUG_ANY, "bdb_modify_internal: invalid op %d\n",
166 *text = "Invalid modify operation";
168 Debug(LDAP_DEBUG_ARGS, "bdb_modify_internal: %d %s\n",
172 if ( err != LDAP_SUCCESS ) {
173 attrs_free( e->e_attrs );
174 e->e_attrs = save_attrs;
175 /* unlock entry, delete from cache */
179 /* If objectClass was modified, reset the flags */
180 if ( mod->sm_desc == slap_schema.si_ad_objectClass ) {
184 if ( glue_attr_delete ) {
188 /* check if modified attribute was indexed
189 * but not in case of NOOP... */
190 err = bdb_index_is_indexed( op->o_bd, mod->sm_desc );
191 if ( err == LDAP_SUCCESS && !op->o_noop ) {
192 ap = attr_find( save_attrs, mod->sm_desc );
193 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
195 ap = attr_find( e->e_attrs, mod->sm_desc );
196 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
200 /* check that the entry still obeys the schema */
201 rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
202 if ( rc != LDAP_SUCCESS || op->o_noop ) {
203 attrs_free( e->e_attrs );
204 /* clear the indexing flags */
205 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
208 e->e_attrs = save_attrs;
210 if ( rc != LDAP_SUCCESS ) {
211 Debug( LDAP_DEBUG_ANY,
212 "entry failed schema check: %s\n",
216 /* if NOOP then silently revert to saved attrs */
220 /* update the indices of the modified attributes */
222 /* start with deleting the old index entries */
223 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
224 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
225 rc = bdb_index_values( op, tid, ap->a_desc,
227 e->e_id, SLAP_INDEX_DELETE_OP );
228 if ( rc != LDAP_SUCCESS ) {
229 attrs_free( e->e_attrs );
230 e->e_attrs = save_attrs;
231 Debug( LDAP_DEBUG_ANY,
232 "Attribute index delete failure",
236 ap->a_flags &= ~SLAP_ATTR_IXDEL;
240 /* add the new index entries */
241 for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
242 if (ap->a_flags & SLAP_ATTR_IXADD) {
243 rc = bdb_index_values( op, tid, ap->a_desc,
245 e->e_id, SLAP_INDEX_ADD_OP );
246 if ( rc != LDAP_SUCCESS ) {
247 attrs_free( e->e_attrs );
248 e->e_attrs = save_attrs;
249 Debug( LDAP_DEBUG_ANY,
250 "Attribute index add failure",
254 ap->a_flags &= ~SLAP_ATTR_IXADD;
263 bdb_modify( Operation *op, SlapReply *rs )
265 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
267 EntryInfo *ei = NULL;
268 int manageDSAit = get_manageDSAit( op );
269 char textbuf[SLAP_TEXT_BUFLEN];
270 size_t textlen = sizeof textbuf;
271 DB_TXN *ltid = NULL, *lt2;
272 struct bdb_op_info opinfo;
275 u_int32_t locker = 0;
280 LDAPControl **preread_ctrl = NULL;
281 LDAPControl **postread_ctrl = NULL;
282 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
286 struct psid_entry *pm_list, *pm_prev;
288 EntryInfo *suffix_ei;
290 int ctxcsn_added = 0;
292 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
293 op->o_req_dn.bv_val, 0, 0 );
295 ctrls[num_ctrls] = NULL;
298 retry: /* transaction retry */
299 if ( dummy.e_attrs ) {
300 attrs_free( dummy.e_attrs );
301 dummy.e_attrs = NULL;
304 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
307 Debug(LDAP_DEBUG_TRACE,
308 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
310 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
311 while ( pm_list != NULL ) {
312 LDAP_LIST_REMOVE ( pm_list, ps_link );
314 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
318 rs->sr_err = TXN_ABORT( ltid );
320 op->o_private = NULL;
321 op->o_do_not_cache = opinfo.boi_acl_cache;
322 if( rs->sr_err != 0 ) {
323 rs->sr_err = LDAP_OTHER;
324 rs->sr_text = "internal error";
327 ldap_pvt_thread_yield();
328 bdb_trans_backoff( ++num_retries );
331 /* begin transaction */
332 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
333 bdb->bi_db_opflags );
335 if( rs->sr_err != 0 ) {
336 Debug( LDAP_DEBUG_TRACE,
337 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
338 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
339 rs->sr_err = LDAP_OTHER;
340 rs->sr_text = "internal error";
344 locker = TXN_ID ( ltid );
346 opinfo.boi_bdb = op->o_bd;
347 opinfo.boi_txn = ltid;
348 opinfo.boi_locker = locker;
350 opinfo.boi_acl_cache = op->o_do_not_cache;
351 op->o_private = &opinfo;
353 /* get entry or ancestor */
354 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
357 if ( rs->sr_err != 0 ) {
358 Debug( LDAP_DEBUG_TRACE,
359 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
361 switch( rs->sr_err ) {
362 case DB_LOCK_DEADLOCK:
363 case DB_LOCK_NOTGRANTED:
368 rs->sr_text = "ldap server busy";
371 rs->sr_err = LDAP_OTHER;
372 rs->sr_text = "internal error";
378 /* acquire and lock entry */
379 /* FIXME: dn2entry() should return non-glue entry */
380 if (( rs->sr_err == DB_NOTFOUND ) ||
381 ( !manageDSAit && e && is_entry_glue( e )))
383 BerVarray deref = NULL;
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 if ( !LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
395 LDAP_STAILQ_FOREACH( si, &op->o_bd->be_syncinfo, si_next ) {
397 ber_dupbv( &tmpbv, &si->si_provideruri_bv[0] );
398 ber_bvarray_add( &deref, &tmpbv );
401 deref = default_referral;
403 rs->sr_ref = referral_rewrite( deref, NULL, &op->o_req_dn,
404 LDAP_SCOPE_DEFAULT );
407 rs->sr_err = LDAP_REFERRAL;
408 send_ldap_result( op, rs );
410 if ( rs->sr_ref != default_referral ) {
411 ber_bvarray_free( rs->sr_ref );
413 if ( deref != default_referral ) {
414 ber_bvarray_free( deref );
416 free( (char *)rs->sr_matched );
418 rs->sr_matched = NULL;
423 if ( !manageDSAit && is_entry_referral( e ) ) {
424 /* entry is a referral, don't allow modify */
425 rs->sr_ref = get_entry_referrals( op, e );
427 Debug( LDAP_DEBUG_TRACE,
428 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
431 rs->sr_err = LDAP_REFERRAL;
432 rs->sr_matched = e->e_name.bv_val;
433 send_ldap_result( op, rs );
435 ber_bvarray_free( rs->sr_ref );
437 rs->sr_matched = NULL;
441 if ( get_assert( op ) &&
442 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
444 rs->sr_err = LDAP_ASSERTION_FAILED;
448 if ( rs->sr_err == LDAP_SUCCESS && !op->o_noop && !op->o_no_psearch ) {
449 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
450 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
451 rc = bdb_psearch(op, rs, ps_list, e, LDAP_PSEARCH_BY_PREMODIFY );
452 if ( rc == LDAP_BUSY && op->o_ps_send_wait ) {
453 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
456 Debug( LDAP_DEBUG_TRACE,
457 LDAP_XSTRING(bdb_modify)
458 ": persistent search failed (%d,%d)\n",
462 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
465 if( op->o_preread ) {
466 if( preread_ctrl == NULL ) {
467 preread_ctrl = &ctrls[num_ctrls++];
468 ctrls[num_ctrls] = NULL;
470 if ( slap_read_controls( op, rs, e,
471 &slap_pre_read_bv, preread_ctrl ) )
473 Debug( LDAP_DEBUG_TRACE,
474 "<=- " LDAP_XSTRING(bdb_modify)
475 ": pre-read failed!\n", 0, 0, 0 );
480 /* nested transaction */
481 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
482 bdb->bi_db_opflags );
484 if( rs->sr_err != 0 ) {
485 Debug( LDAP_DEBUG_TRACE,
486 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: "
488 db_strerror(rs->sr_err), rs->sr_err, 0 );
489 rs->sr_err = LDAP_OTHER;
490 rs->sr_text = "internal error";
493 /* Modify the entry */
495 rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
496 &dummy, &rs->sr_text, textbuf, textlen );
498 if( rs->sr_err != LDAP_SUCCESS ) {
499 Debug( LDAP_DEBUG_TRACE,
500 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
502 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
503 rs->sr_err = opinfo.boi_err;
505 /* Only free attrs if they were dup'd. */
506 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
507 switch( rs->sr_err ) {
508 case DB_LOCK_DEADLOCK:
509 case DB_LOCK_NOTGRANTED:
515 /* change the entry itself */
516 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
517 if ( rs->sr_err != 0 ) {
518 Debug( LDAP_DEBUG_TRACE,
519 LDAP_XSTRING(bdb_modify) ": id2entry update failed "
520 "(%d)\n", rs->sr_err, 0, 0 );
521 switch( rs->sr_err ) {
522 case DB_LOCK_DEADLOCK:
523 case DB_LOCK_NOTGRANTED:
526 rs->sr_text = "entry update failed";
530 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
531 rs->sr_err = LDAP_OTHER;
532 rs->sr_text = "txn_commit(2) failed";
536 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
537 rc = bdb_csn_commit( op, rs, ltid, ei, &suffix_ei,
538 &ctxcsn_e, &ctxcsn_added, locker );
547 if( op->o_postread ) {
548 if( postread_ctrl == NULL ) {
549 postread_ctrl = &ctrls[num_ctrls++];
550 ctrls[num_ctrls] = NULL;
552 if( slap_read_controls( op, rs, &dummy,
553 &slap_post_read_bv, postread_ctrl ) )
555 Debug( LDAP_DEBUG_TRACE,
556 "<=- " LDAP_XSTRING(bdb_modify)
557 ": post-read failed!\n", 0, 0, 0 );
563 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
564 rs->sr_text = "txn_abort (no-op) failed";
566 rs->sr_err = LDAP_NO_OPERATION;
570 rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
572 case DB_LOCK_DEADLOCK:
573 case DB_LOCK_NOTGRANTED:
576 dummy.e_attrs = NULL;
578 if ( LDAP_STAILQ_EMPTY( &op->o_bd->be_syncinfo )) {
579 if ( ctxcsn_added ) {
580 bdb_cache_add( bdb, suffix_ei, ctxcsn_e,
581 (struct berval *)&slap_ldapsync_cn_bv, locker );
585 if ( rs->sr_err == LDAP_SUCCESS ) {
586 /* Loop through in-scope entries for each psearch spec */
587 ldap_pvt_thread_rdwr_wlock( &bdb->bi_pslist_rwlock );
588 LDAP_LIST_FOREACH ( ps_list, &bdb->bi_psearch_list, o_ps_link ) {
589 rc = bdb_psearch( op, rs, ps_list, e, LDAP_PSEARCH_BY_MODIFY );
591 Debug( LDAP_DEBUG_TRACE,
592 LDAP_XSTRING(bdb_modify)
593 ": persistent search failed "
598 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
599 while ( pm_list != NULL ) {
600 rc = bdb_psearch(op, rs, pm_list->ps_op,
601 e, LDAP_PSEARCH_BY_SCOPEOUT);
603 Debug( LDAP_DEBUG_TRACE,
604 LDAP_XSTRING(bdb_modify)
605 ": persistent search failed "
609 LDAP_LIST_REMOVE ( pm_list, ps_link );
611 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
614 ldap_pvt_thread_rdwr_wunlock( &bdb->bi_pslist_rwlock );
617 rs->sr_err = TXN_COMMIT( ltid, 0 );
620 op->o_private = NULL;
622 if( rs->sr_err != 0 ) {
623 Debug( LDAP_DEBUG_TRACE,
624 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
625 op->o_noop ? "abort (no-op)" : "commit",
626 db_strerror(rs->sr_err), rs->sr_err );
627 rs->sr_err = LDAP_OTHER;
628 rs->sr_text = "commit failed";
633 Debug( LDAP_DEBUG_TRACE,
634 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
635 op->o_noop ? " (no-op)" : "",
636 dummy.e_id, op->o_req_dn.bv_val );
638 rs->sr_err = LDAP_SUCCESS;
640 if( num_ctrls ) rs->sr_ctrls = ctrls;
643 if( dummy.e_attrs ) {
644 attrs_free( dummy.e_attrs );
646 send_ldap_result( op, rs );
648 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
649 ldap_pvt_thread_yield();
650 TXN_CHECKPOINT( bdb->bi_dbenv,
651 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
656 pm_list = LDAP_LIST_FIRST(&op->o_pm_list);
657 while ( pm_list != NULL ) {
658 LDAP_LIST_REMOVE ( pm_list, ps_link );
660 pm_list = LDAP_LIST_NEXT ( pm_list, ps_link );
664 op->o_private = NULL;
668 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
671 if( preread_ctrl != NULL ) {
672 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
673 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
675 if( postread_ctrl != NULL ) {
676 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
677 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );