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->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 = {0};
275 u_int32_t locker = 0;
280 LDAPControl **preread_ctrl = NULL;
281 LDAPControl **postread_ctrl = NULL;
282 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
287 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
288 op->o_req_dn.bv_val, 0, 0 );
290 ctrls[num_ctrls] = NULL;
293 retry: /* transaction retry */
294 if ( dummy.e_attrs ) {
295 attrs_free( dummy.e_attrs );
296 dummy.e_attrs = NULL;
299 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
302 Debug(LDAP_DEBUG_TRACE,
303 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
305 rs->sr_err = TXN_ABORT( ltid );
307 op->o_private = NULL;
308 op->o_do_not_cache = opinfo.boi_acl_cache;
309 if( rs->sr_err != 0 ) {
310 rs->sr_err = LDAP_OTHER;
311 rs->sr_text = "internal error";
314 ldap_pvt_thread_yield();
315 bdb_trans_backoff( ++num_retries );
318 /* begin transaction */
319 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
320 bdb->bi_db_opflags );
322 if( rs->sr_err != 0 ) {
323 Debug( LDAP_DEBUG_TRACE,
324 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
325 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
326 rs->sr_err = LDAP_OTHER;
327 rs->sr_text = "internal error";
331 locker = TXN_ID ( ltid );
333 opinfo.boi_bdb = op->o_bd;
334 opinfo.boi_txn = ltid;
335 opinfo.boi_locker = locker;
337 opinfo.boi_acl_cache = op->o_do_not_cache;
338 op->o_private = &opinfo;
340 /* get entry or ancestor */
341 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
344 if ( rs->sr_err != 0 ) {
345 Debug( LDAP_DEBUG_TRACE,
346 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
348 switch( rs->sr_err ) {
349 case DB_LOCK_DEADLOCK:
350 case DB_LOCK_NOTGRANTED:
355 rs->sr_text = "ldap server busy";
358 rs->sr_err = LDAP_OTHER;
359 rs->sr_text = "internal error";
365 /* acquire and lock entry */
366 /* FIXME: dn2entry() should return non-glue entry */
367 if (( rs->sr_err == DB_NOTFOUND ) ||
368 ( !manageDSAit && e && is_entry_glue( e )))
371 rs->sr_matched = ch_strdup( e->e_dn );
372 rs->sr_ref = is_entry_referral( e )
373 ? get_entry_referrals( op, e )
375 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
379 rs->sr_ref = referral_rewrite( default_referral, NULL,
380 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
383 rs->sr_err = LDAP_REFERRAL;
384 send_ldap_result( op, rs );
386 if ( rs->sr_ref != default_referral ) {
387 ber_bvarray_free( rs->sr_ref );
389 free( (char *)rs->sr_matched );
391 rs->sr_matched = NULL;
396 if ( !manageDSAit && is_entry_referral( e ) ) {
397 /* entry is a referral, don't allow modify */
398 rs->sr_ref = get_entry_referrals( op, e );
400 Debug( LDAP_DEBUG_TRACE,
401 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
404 rs->sr_err = LDAP_REFERRAL;
405 rs->sr_matched = e->e_name.bv_val;
406 send_ldap_result( op, rs );
408 ber_bvarray_free( rs->sr_ref );
410 rs->sr_matched = NULL;
414 if ( get_assert( op ) &&
415 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
417 rs->sr_err = LDAP_ASSERTION_FAILED;
421 if( op->o_preread ) {
422 if( preread_ctrl == NULL ) {
423 preread_ctrl = &ctrls[num_ctrls++];
424 ctrls[num_ctrls] = NULL;
426 if ( slap_read_controls( op, rs, e,
427 &slap_pre_read_bv, preread_ctrl ) )
429 Debug( LDAP_DEBUG_TRACE,
430 "<=- " LDAP_XSTRING(bdb_modify)
431 ": pre-read failed!\n", 0, 0, 0 );
436 /* nested transaction */
437 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2,
438 bdb->bi_db_opflags );
440 if( rs->sr_err != 0 ) {
441 Debug( LDAP_DEBUG_TRACE,
442 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: "
444 db_strerror(rs->sr_err), rs->sr_err, 0 );
445 rs->sr_err = LDAP_OTHER;
446 rs->sr_text = "internal error";
449 /* Modify the entry */
451 rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
452 &dummy, &rs->sr_text, textbuf, textlen );
454 if( rs->sr_err != LDAP_SUCCESS ) {
455 Debug( LDAP_DEBUG_TRACE,
456 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
458 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
459 rs->sr_err = opinfo.boi_err;
461 /* Only free attrs if they were dup'd. */
462 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
463 switch( rs->sr_err ) {
464 case DB_LOCK_DEADLOCK:
465 case DB_LOCK_NOTGRANTED:
471 /* change the entry itself */
472 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
473 if ( rs->sr_err != 0 ) {
474 Debug( LDAP_DEBUG_TRACE,
475 LDAP_XSTRING(bdb_modify) ": id2entry update failed "
476 "(%d)\n", rs->sr_err, 0, 0 );
477 switch( rs->sr_err ) {
478 case DB_LOCK_DEADLOCK:
479 case DB_LOCK_NOTGRANTED:
482 rs->sr_text = "entry update failed";
486 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
487 rs->sr_err = LDAP_OTHER;
488 rs->sr_text = "txn_commit(2) failed";
492 if( op->o_postread ) {
493 if( postread_ctrl == NULL ) {
494 postread_ctrl = &ctrls[num_ctrls++];
495 ctrls[num_ctrls] = NULL;
497 if( slap_read_controls( op, rs, &dummy,
498 &slap_post_read_bv, postread_ctrl ) )
500 Debug( LDAP_DEBUG_TRACE,
501 "<=- " LDAP_XSTRING(bdb_modify)
502 ": post-read failed!\n", 0, 0, 0 );
508 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
509 rs->sr_text = "txn_abort (no-op) failed";
511 rs->sr_err = LDAP_NO_OPERATION;
515 /* may have changed in bdb_modify_internal() */
516 e->e_ocflags = dummy.e_ocflags;
517 rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
519 case DB_LOCK_DEADLOCK:
520 case DB_LOCK_NOTGRANTED:
523 dummy.e_attrs = NULL;
525 rs->sr_err = TXN_COMMIT( ltid, 0 );
528 op->o_private = NULL;
530 if( rs->sr_err != 0 ) {
531 Debug( LDAP_DEBUG_TRACE,
532 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
533 op->o_noop ? "abort (no-op)" : "commit",
534 db_strerror(rs->sr_err), rs->sr_err );
535 rs->sr_err = LDAP_OTHER;
536 rs->sr_text = "commit failed";
541 Debug( LDAP_DEBUG_TRACE,
542 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
543 op->o_noop ? " (no-op)" : "",
544 dummy.e_id, op->o_req_dn.bv_val );
546 rs->sr_err = LDAP_SUCCESS;
548 if( num_ctrls ) rs->sr_ctrls = ctrls;
551 if( dummy.e_attrs ) {
552 attrs_free( dummy.e_attrs );
554 send_ldap_result( op, rs );
556 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
557 ldap_pvt_thread_yield();
558 TXN_CHECKPOINT( bdb->bi_dbenv,
559 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
565 op->o_private = NULL;
569 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
572 if( preread_ctrl != NULL ) {
573 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
574 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
576 if( postread_ctrl != NULL ) {
577 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
578 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );