1 /* modify.c - bdb backend modify routine */
3 /* This work is part of OpenLDAP Software <http://www.openldap.org/>.
5 * Copyright 2000-2005 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->
66 ad_type->sat_equality,
67 SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
68 &mod->sm_values[0], &scbva[0], text );
69 if ( !match ) glue_attr_delete = 1;
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 ) e->e_ocflags = 0;
186 /* check if modified attribute was indexed
187 * but not in case of NOOP... */
188 err = bdb_index_is_indexed( op->o_bd, mod->sm_desc );
189 if ( err == LDAP_SUCCESS && !op->o_noop ) {
190 ap = attr_find( save_attrs, mod->sm_desc );
191 if ( ap ) ap->a_flags |= SLAP_ATTR_IXDEL;
193 ap = attr_find( e->e_attrs, mod->sm_desc );
194 if ( ap ) ap->a_flags |= SLAP_ATTR_IXADD;
198 /* check that the entry still obeys the schema */
199 rc = entry_schema_check( op->o_bd, e, save_attrs, text, textbuf, textlen );
200 if ( rc != LDAP_SUCCESS || op->o_noop ) {
201 attrs_free( e->e_attrs );
202 /* clear the indexing flags */
203 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
206 e->e_attrs = save_attrs;
208 if ( rc != LDAP_SUCCESS ) {
209 Debug( LDAP_DEBUG_ANY,
210 "entry failed schema check: %s\n",
214 /* if NOOP then silently revert to saved attrs */
218 /* update the indices of the modified attributes */
220 /* start with deleting the old index entries */
221 for ( ap = save_attrs; ap != NULL; ap = ap->a_next ) {
222 if ( ap->a_flags & SLAP_ATTR_IXDEL ) {
223 rc = bdb_index_values( op, tid, ap->a_desc,
225 e->e_id, SLAP_INDEX_DELETE_OP );
226 if ( rc != LDAP_SUCCESS ) {
227 attrs_free( e->e_attrs );
228 e->e_attrs = save_attrs;
229 Debug( LDAP_DEBUG_ANY,
230 "Attribute index delete failure",
234 ap->a_flags &= ~SLAP_ATTR_IXDEL;
238 /* add the new index entries */
239 for ( ap = e->e_attrs; ap != NULL; ap = ap->a_next ) {
240 if (ap->a_flags & SLAP_ATTR_IXADD) {
241 rc = bdb_index_values( op, tid, ap->a_desc,
243 e->e_id, SLAP_INDEX_ADD_OP );
244 if ( rc != LDAP_SUCCESS ) {
245 attrs_free( e->e_attrs );
246 e->e_attrs = save_attrs;
247 Debug( LDAP_DEBUG_ANY,
248 "Attribute index add failure",
252 ap->a_flags &= ~SLAP_ATTR_IXADD;
261 bdb_modify( Operation *op, SlapReply *rs )
263 struct bdb_info *bdb = (struct bdb_info *) op->o_bd->be_private;
265 EntryInfo *ei = NULL;
266 int manageDSAit = get_manageDSAit( op );
267 char textbuf[SLAP_TEXT_BUFLEN];
268 size_t textlen = sizeof textbuf;
269 DB_TXN *ltid = NULL, *lt2;
270 struct bdb_op_info opinfo = {0};
274 u_int32_t locker = 0;
279 LDAPControl **preread_ctrl = NULL;
280 LDAPControl **postread_ctrl = NULL;
281 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
286 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
287 op->o_req_dn.bv_val, 0, 0 );
289 ctrls[num_ctrls] = NULL;
292 retry: /* transaction retry */
293 if ( dummy.e_attrs ) {
294 attrs_free( dummy.e_attrs );
295 dummy.e_attrs = NULL;
298 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
301 Debug(LDAP_DEBUG_TRACE,
302 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
304 rs->sr_err = TXN_ABORT( ltid );
306 op->o_private = NULL;
307 op->o_do_not_cache = opinfo.boi_acl_cache;
308 if( rs->sr_err != 0 ) {
309 rs->sr_err = LDAP_OTHER;
310 rs->sr_text = "internal error";
313 if ( op->o_abandon ) {
314 rs->sr_err = SLAPD_ABANDON;
317 ldap_pvt_thread_yield();
318 bdb_trans_backoff( ++num_retries );
321 /* begin transaction */
322 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
323 bdb->bi_db_opflags );
325 if( rs->sr_err != 0 ) {
326 Debug( LDAP_DEBUG_TRACE,
327 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
328 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
329 rs->sr_err = LDAP_OTHER;
330 rs->sr_text = "internal error";
334 locker = TXN_ID ( ltid );
336 opinfo.boi_bdb = op->o_bd;
337 opinfo.boi_txn = ltid;
338 opinfo.boi_locker = locker;
340 opinfo.boi_acl_cache = op->o_do_not_cache;
341 op->o_private = &opinfo;
343 /* get entry or ancestor */
344 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
349 if ( rs->sr_err != 0 ) {
350 Debug( LDAP_DEBUG_TRACE,
351 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
353 switch( rs->sr_err ) {
354 case DB_LOCK_DEADLOCK:
355 case DB_LOCK_NOTGRANTED:
358 if ( BER_BVISEMPTY( &op->o_req_ndn )) {
359 struct berval gluebv = BER_BVC("glue");
360 e = ch_calloc( 1, sizeof(Entry));
361 e->e_name.bv_val = ch_strdup( "" );
362 ber_dupbv( &e->e_nname, &e->e_name );
363 attr_merge_one( e, slap_schema.si_ad_objectClass,
365 attr_merge_one( e, slap_schema.si_ad_structuralObjectClass,
373 rs->sr_text = "ldap server busy";
376 rs->sr_err = LDAP_OTHER;
377 rs->sr_text = "internal error";
382 /* acquire and lock entry */
383 /* FIXME: dn2entry() should return non-glue entry */
384 if (( rs->sr_err == DB_NOTFOUND ) ||
385 ( !manageDSAit && e && is_entry_glue( e )))
388 rs->sr_matched = ch_strdup( e->e_dn );
389 rs->sr_ref = is_entry_referral( e )
390 ? get_entry_referrals( op, e )
392 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
396 rs->sr_ref = referral_rewrite( default_referral, NULL,
397 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
400 rs->sr_err = LDAP_REFERRAL;
401 send_ldap_result( op, rs );
403 if ( rs->sr_ref != default_referral ) {
404 ber_bvarray_free( rs->sr_ref );
406 free( (char *)rs->sr_matched );
408 rs->sr_matched = NULL;
413 if ( !manageDSAit && is_entry_referral( e ) ) {
414 /* entry is a referral, don't allow modify */
415 rs->sr_ref = get_entry_referrals( op, e );
417 Debug( LDAP_DEBUG_TRACE,
418 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
421 rs->sr_err = LDAP_REFERRAL;
422 rs->sr_matched = e->e_name.bv_val;
423 send_ldap_result( op, rs );
425 ber_bvarray_free( rs->sr_ref );
427 rs->sr_matched = NULL;
431 if ( get_assert( op ) &&
432 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
434 rs->sr_err = LDAP_ASSERTION_FAILED;
438 if( op->o_preread ) {
439 if( preread_ctrl == NULL ) {
440 preread_ctrl = &ctrls[num_ctrls++];
441 ctrls[num_ctrls] = NULL;
443 if ( slap_read_controls( op, rs, e,
444 &slap_pre_read_bv, preread_ctrl ) )
446 Debug( LDAP_DEBUG_TRACE,
447 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read failed!\n",
453 /* nested transaction */
454 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
456 if( rs->sr_err != 0 ) {
457 Debug( LDAP_DEBUG_TRACE,
458 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
459 db_strerror(rs->sr_err), rs->sr_err, 0 );
460 rs->sr_err = LDAP_OTHER;
461 rs->sr_text = "internal error";
464 /* Modify the entry */
466 rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
467 &dummy, &rs->sr_text, textbuf, textlen );
469 if( rs->sr_err != LDAP_SUCCESS ) {
470 Debug( LDAP_DEBUG_TRACE,
471 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
473 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
474 rs->sr_err = opinfo.boi_err;
476 /* Only free attrs if they were dup'd. */
477 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
478 switch( rs->sr_err ) {
479 case DB_LOCK_DEADLOCK:
480 case DB_LOCK_NOTGRANTED:
486 /* change the entry itself */
487 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
488 if ( rs->sr_err != 0 ) {
489 Debug( LDAP_DEBUG_TRACE,
490 LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
492 switch( rs->sr_err ) {
493 case DB_LOCK_DEADLOCK:
494 case DB_LOCK_NOTGRANTED:
497 rs->sr_text = "entry update failed";
501 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
502 rs->sr_err = LDAP_OTHER;
503 rs->sr_text = "txn_commit(2) failed";
507 if( op->o_postread ) {
508 if( postread_ctrl == NULL ) {
509 postread_ctrl = &ctrls[num_ctrls++];
510 ctrls[num_ctrls] = NULL;
512 if( slap_read_controls( op, rs, &dummy,
513 &slap_post_read_bv, postread_ctrl ) )
515 Debug( LDAP_DEBUG_TRACE,
516 "<=- " LDAP_XSTRING(bdb_modify)
517 ": post-read failed!\n", 0, 0, 0 );
523 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
524 rs->sr_text = "txn_abort (no-op) failed";
526 rs->sr_err = LDAP_NO_OPERATION;
530 /* may have changed in bdb_modify_internal() */
531 e->e_ocflags = dummy.e_ocflags;
536 rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
538 case DB_LOCK_DEADLOCK:
539 case DB_LOCK_NOTGRANTED:
543 dummy.e_attrs = NULL;
545 rs->sr_err = TXN_COMMIT( ltid, 0 );
548 op->o_private = NULL;
550 if( rs->sr_err != 0 ) {
551 Debug( LDAP_DEBUG_TRACE,
552 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
553 op->o_noop ? "abort (no-op)" : "commit",
554 db_strerror(rs->sr_err), rs->sr_err );
555 rs->sr_err = LDAP_OTHER;
556 rs->sr_text = "commit failed";
561 Debug( LDAP_DEBUG_TRACE,
562 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
563 op->o_noop ? " (no-op)" : "",
564 dummy.e_id, op->o_req_dn.bv_val );
566 rs->sr_err = LDAP_SUCCESS;
568 if( num_ctrls ) rs->sr_ctrls = ctrls;
571 if( dummy.e_attrs ) {
572 attrs_free( dummy.e_attrs );
574 send_ldap_result( op, rs );
576 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
577 ldap_pvt_thread_yield();
578 TXN_CHECKPOINT( bdb->bi_dbenv,
579 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
585 op->o_private = NULL;
589 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
592 if( preread_ctrl != NULL ) {
593 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
594 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
596 if( postread_ctrl != NULL ) {
597 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
598 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );