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};
273 u_int32_t locker = 0;
278 LDAPControl **preread_ctrl = NULL;
279 LDAPControl **postread_ctrl = NULL;
280 LDAPControl *ctrls[SLAP_MAX_RESPONSE_CONTROLS];
285 Debug( LDAP_DEBUG_ARGS, LDAP_XSTRING(bdb_modify) ": %s\n",
286 op->o_req_dn.bv_val, 0, 0 );
288 ctrls[num_ctrls] = NULL;
291 retry: /* transaction retry */
292 if ( dummy.e_attrs ) {
293 attrs_free( dummy.e_attrs );
294 dummy.e_attrs = NULL;
297 bdb_unlocked_cache_return_entry_w(&bdb->bi_cache, e);
300 Debug(LDAP_DEBUG_TRACE,
301 LDAP_XSTRING(bdb_modify) ": retrying...\n", 0, 0, 0);
303 rs->sr_err = TXN_ABORT( ltid );
305 op->o_private = NULL;
306 op->o_do_not_cache = opinfo.boi_acl_cache;
307 if( rs->sr_err != 0 ) {
308 rs->sr_err = LDAP_OTHER;
309 rs->sr_text = "internal error";
312 ldap_pvt_thread_yield();
313 bdb_trans_backoff( ++num_retries );
316 /* begin transaction */
317 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, NULL, <id,
318 bdb->bi_db_opflags );
320 if( rs->sr_err != 0 ) {
321 Debug( LDAP_DEBUG_TRACE,
322 LDAP_XSTRING(bdb_modify) ": txn_begin failed: "
323 "%s (%d)\n", db_strerror(rs->sr_err), rs->sr_err, 0 );
324 rs->sr_err = LDAP_OTHER;
325 rs->sr_text = "internal error";
329 locker = TXN_ID ( ltid );
331 opinfo.boi_bdb = op->o_bd;
332 opinfo.boi_txn = ltid;
333 opinfo.boi_locker = locker;
335 opinfo.boi_acl_cache = op->o_do_not_cache;
336 op->o_private = &opinfo;
338 /* get entry or ancestor */
339 rs->sr_err = bdb_dn2entry( op, ltid, &op->o_req_ndn, &ei, 1,
342 if ( rs->sr_err != 0 ) {
343 Debug( LDAP_DEBUG_TRACE,
344 LDAP_XSTRING(bdb_modify) ": dn2entry failed (%d)\n",
346 switch( rs->sr_err ) {
347 case DB_LOCK_DEADLOCK:
348 case DB_LOCK_NOTGRANTED:
353 rs->sr_text = "ldap server busy";
356 rs->sr_err = LDAP_OTHER;
357 rs->sr_text = "internal error";
363 /* acquire and lock entry */
364 /* FIXME: dn2entry() should return non-glue entry */
365 if (( rs->sr_err == DB_NOTFOUND ) ||
366 ( !manageDSAit && e && is_entry_glue( e )))
369 rs->sr_matched = ch_strdup( e->e_dn );
370 rs->sr_ref = is_entry_referral( e )
371 ? get_entry_referrals( op, e )
373 bdb_unlocked_cache_return_entry_r (&bdb->bi_cache, e);
377 rs->sr_ref = referral_rewrite( default_referral, NULL,
378 &op->o_req_dn, LDAP_SCOPE_DEFAULT );
381 rs->sr_err = LDAP_REFERRAL;
382 send_ldap_result( op, rs );
384 if ( rs->sr_ref != default_referral ) {
385 ber_bvarray_free( rs->sr_ref );
387 free( (char *)rs->sr_matched );
389 rs->sr_matched = NULL;
394 if ( !manageDSAit && is_entry_referral( e ) ) {
395 /* entry is a referral, don't allow modify */
396 rs->sr_ref = get_entry_referrals( op, e );
398 Debug( LDAP_DEBUG_TRACE,
399 LDAP_XSTRING(bdb_modify) ": entry is referral\n",
402 rs->sr_err = LDAP_REFERRAL;
403 rs->sr_matched = e->e_name.bv_val;
404 send_ldap_result( op, rs );
406 ber_bvarray_free( rs->sr_ref );
408 rs->sr_matched = NULL;
412 if ( get_assert( op ) &&
413 ( test_filter( op, e, get_assertion( op )) != LDAP_COMPARE_TRUE ))
415 rs->sr_err = LDAP_ASSERTION_FAILED;
419 if( op->o_preread ) {
420 if( preread_ctrl == NULL ) {
421 preread_ctrl = &ctrls[num_ctrls++];
422 ctrls[num_ctrls] = NULL;
424 if ( slap_read_controls( op, rs, e,
425 &slap_pre_read_bv, preread_ctrl ) )
427 Debug( LDAP_DEBUG_TRACE,
428 "<=- " LDAP_XSTRING(bdb_modify) ": pre-read failed!\n",
434 /* nested transaction */
435 rs->sr_err = TXN_BEGIN( bdb->bi_dbenv, ltid, <2, bdb->bi_db_opflags );
437 if( rs->sr_err != 0 ) {
438 Debug( LDAP_DEBUG_TRACE,
439 LDAP_XSTRING(bdb_modify) ": txn_begin(2) failed: " "%s (%d)\n",
440 db_strerror(rs->sr_err), rs->sr_err, 0 );
441 rs->sr_err = LDAP_OTHER;
442 rs->sr_text = "internal error";
445 /* Modify the entry */
447 rs->sr_err = bdb_modify_internal( op, lt2, op->oq_modify.rs_modlist,
448 &dummy, &rs->sr_text, textbuf, textlen );
450 if( rs->sr_err != LDAP_SUCCESS ) {
451 Debug( LDAP_DEBUG_TRACE,
452 LDAP_XSTRING(bdb_modify) ": modify failed (%d)\n",
454 if ( (rs->sr_err == LDAP_INSUFFICIENT_ACCESS) && opinfo.boi_err ) {
455 rs->sr_err = opinfo.boi_err;
457 /* Only free attrs if they were dup'd. */
458 if ( dummy.e_attrs == e->e_attrs ) dummy.e_attrs = NULL;
459 switch( rs->sr_err ) {
460 case DB_LOCK_DEADLOCK:
461 case DB_LOCK_NOTGRANTED:
467 /* change the entry itself */
468 rs->sr_err = bdb_id2entry_update( op->o_bd, lt2, &dummy );
469 if ( rs->sr_err != 0 ) {
470 Debug( LDAP_DEBUG_TRACE,
471 LDAP_XSTRING(bdb_modify) ": id2entry update failed " "(%d)\n",
473 switch( rs->sr_err ) {
474 case DB_LOCK_DEADLOCK:
475 case DB_LOCK_NOTGRANTED:
478 rs->sr_text = "entry update failed";
482 if ( TXN_COMMIT( lt2, 0 ) != 0 ) {
483 rs->sr_err = LDAP_OTHER;
484 rs->sr_text = "txn_commit(2) failed";
488 if( op->o_postread ) {
489 if( postread_ctrl == NULL ) {
490 postread_ctrl = &ctrls[num_ctrls++];
491 ctrls[num_ctrls] = NULL;
493 if( slap_read_controls( op, rs, &dummy,
494 &slap_post_read_bv, postread_ctrl ) )
496 Debug( LDAP_DEBUG_TRACE,
497 "<=- " LDAP_XSTRING(bdb_modify)
498 ": post-read failed!\n", 0, 0, 0 );
504 if ( ( rs->sr_err = TXN_ABORT( ltid ) ) != 0 ) {
505 rs->sr_text = "txn_abort (no-op) failed";
507 rs->sr_err = LDAP_NO_OPERATION;
511 /* may have changed in bdb_modify_internal() */
512 e->e_ocflags = dummy.e_ocflags;
513 rc = bdb_cache_modify( e, dummy.e_attrs, bdb->bi_dbenv, locker, &lock );
515 case DB_LOCK_DEADLOCK:
516 case DB_LOCK_NOTGRANTED:
519 dummy.e_attrs = NULL;
521 rs->sr_err = TXN_COMMIT( ltid, 0 );
524 op->o_private = NULL;
526 if( rs->sr_err != 0 ) {
527 Debug( LDAP_DEBUG_TRACE,
528 LDAP_XSTRING(bdb_modify) ": txn_%s failed: %s (%d)\n",
529 op->o_noop ? "abort (no-op)" : "commit",
530 db_strerror(rs->sr_err), rs->sr_err );
531 rs->sr_err = LDAP_OTHER;
532 rs->sr_text = "commit failed";
537 Debug( LDAP_DEBUG_TRACE,
538 LDAP_XSTRING(bdb_modify) ": updated%s id=%08lx dn=\"%s\"\n",
539 op->o_noop ? " (no-op)" : "",
540 dummy.e_id, op->o_req_dn.bv_val );
542 rs->sr_err = LDAP_SUCCESS;
544 if( num_ctrls ) rs->sr_ctrls = ctrls;
547 if( dummy.e_attrs ) {
548 attrs_free( dummy.e_attrs );
550 send_ldap_result( op, rs );
552 if( rs->sr_err == LDAP_SUCCESS && bdb->bi_txn_cp ) {
553 ldap_pvt_thread_yield();
554 TXN_CHECKPOINT( bdb->bi_dbenv,
555 bdb->bi_txn_cp_kbyte, bdb->bi_txn_cp_min, 0 );
561 op->o_private = NULL;
565 bdb_unlocked_cache_return_entry_w (&bdb->bi_cache, e);
568 if( preread_ctrl != NULL ) {
569 slap_sl_free( (*preread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
570 slap_sl_free( *preread_ctrl, op->o_tmpmemctx );
572 if( postread_ctrl != NULL ) {
573 slap_sl_free( (*postread_ctrl)->ldctl_value.bv_val, op->o_tmpmemctx );
574 slap_sl_free( *postread_ctrl, op->o_tmpmemctx );