+/* psearch.c - psearch operations */
+/* $OpenLDAP$ */
+/*
+ * Copyright 1998-2003 The OpenLDAP Foundation, All Rights Reserved.
+ * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include "back-bdb.h"
+#include "idl.h"
+#include "external.h"
+
+#if defined(LDAP_CLIENT_UPDATE) || defined(LDAP_SYNC)
+
+#define IS_BDB_REPLACE (( psearch_type == LDAP_PSEARCH_BY_DELETE ) || \
+ ( psearch_type == LDAP_PSEARCH_BY_SCOPEOUT ))
+#define IS_BDB_LCUP_REPLACE (( protocol == LDAP_CLIENT_UPDATE ) && IS_BDB_REPLACE )
+
+static int psearch_base_candidate(
+ BackendDB *be,
+ Entry *e,
+ ID *ids );
+
+static int psearch_candidates(
+ BackendDB *be,
+ Operation *op,
+ Entry *e,
+ Filter *filter,
+ int scope,
+ int deref,
+ ID *ids );
+
+int
+bdb_abandon(
+ BackendDB *be,
+ Connection *conn,
+ ber_int_t id )
+{
+ Operation *ps_list;
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
+ LDAP_LIST_FOREACH ( ps_list, &bdb->psearch_list, link ) {
+ if ( ps_list->o_connid == conn->c_connid ) {
+ if ( ps_list->o_msgid == id ) {
+ ps_list->o_abandon = 1;
+ LDAP_LIST_REMOVE( ps_list, link );
+ slap_op_free ( ps_list );
+ return LDAP_SUCCESS;
+ }
+ }
+ }
+ return LDAP_UNAVAILABLE;
+}
+
+int
+bdb_cancel(
+ BackendDB *be,
+ Connection *conn,
+ ber_int_t id )
+{
+ Operation *ps_list;
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
+ LDAP_LIST_FOREACH ( ps_list, &bdb->psearch_list, link ) {
+ if ( ps_list->o_connid == conn->c_connid ) {
+ if ( ps_list->o_msgid == id ) {
+ ps_list->o_cancel = LDAP_CANCEL_DONE;
+ LDAP_LIST_REMOVE( ps_list, link );
+
+#if 0
+ bdb_build_sync_done_ctrl( conn, ps_list, ps_list->ctrls, 1, &latest_entrycsn_bv );
+ send_search_result( conn, ps_list, LDAP_CANCELLED,
+ NULL, NULL, NULL, ps_list->ctrls, ps_list->nentries);
+#endif
+ send_search_result( conn, ps_list, LDAP_CANCELLED,
+ NULL, NULL, NULL, NULL, 0);
+
+
+
+ slap_op_free ( ps_list );
+ return LDAP_SUCCESS;
+ }
+ }
+ }
+ return LDAP_UNAVAILABLE;
+}
+
+int
+bdb_add_psearch_spec(
+ BackendDB *be,
+ Connection *conn,
+ Operation *op,
+ struct berval *base,
+ struct berval *nbase,
+ int scope,
+ int deref,
+ int slimit,
+ int tlimit,
+ Filter *filter,
+ struct berval *fstr,
+ AttributeName *attrs,
+ int attrsonly,
+ int protocol )
+{
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+
+ LDAP_LIST_FIRST( &op->psearch_spec ) = (struct ldap_psearch_spec *)
+ calloc ( 1, sizeof ( struct ldap_psearch_spec ) );
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->op = op;
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->base = ber_dupbv(NULL, base);
+ LDAP_LIST_FIRST( &op->psearch_spec )->nbase = ber_dupbv(NULL, nbase);
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->scope = scope;
+ LDAP_LIST_FIRST( &op->psearch_spec )->deref = deref;
+ LDAP_LIST_FIRST( &op->psearch_spec )->slimit = slimit;
+ LDAP_LIST_FIRST( &op->psearch_spec )->tlimit = tlimit;
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->filter = filter;
+ LDAP_LIST_FIRST( &op->psearch_spec )->filterstr = ber_dupbv(NULL, fstr);
+ LDAP_LIST_FIRST( &op->psearch_spec )->attrs = attrs;
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->attrsonly = attrsonly;
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->entry_count = 0;
+
+ LDAP_LIST_FIRST( &op->psearch_spec )->protocol = protocol;
+
+ LDAP_LIST_INSERT_HEAD( &bdb->psearch_list, op, link );
+}
+
+int
+bdb_psearch(
+ BackendDB *be,
+ Connection *conn,
+ Operation *op,
+ Operation *ps_op,
+ Entry *entry,
+ int psearch_type )
+{
+ struct bdb_info *bdb = (struct bdb_info *) be->be_private;
+ int rc;
+ const char *text = NULL;
+ time_t stoptime;
+ unsigned cursor;
+ ID id;
+ ID candidates[BDB_IDL_UM_SIZE];
+ Entry *e = NULL;
+ BerVarray v2refs = NULL;
+ Entry *matched = NULL;
+ struct berval realbase = { 0, NULL };
+ int nentries = 0;
+ int manageDSAit;
+
+ Filter cookief, csnfnot, csnfeq, csnfand, csnfge;
+ AttributeAssertion aa_ge, aa_eq;
+ struct berval entrycsn_bv = { 0, NULL };
+ struct berval latest_entrycsn_bv = { 0, NULL };
+
+ LDAPControl *ctrls[SLAP_SEARCH_MAX_CTRLS];
+ int num_ctrls = 0;
+
+ struct slap_limits_set *limit = NULL;
+ int isroot = 0;
+ int scopeok = 0;
+
+ u_int32_t locker;
+ DB_LOCK lock;
+
+ Connection *ps_conn = ps_op->o_conn;
+ struct berval *base = LDAP_LIST_FIRST( &ps_op->psearch_spec )->base;
+ struct berval *nbase = LDAP_LIST_FIRST( &ps_op->psearch_spec )->nbase;
+ int scope = LDAP_LIST_FIRST( &ps_op->psearch_spec )->scope;
+ int deref = LDAP_LIST_FIRST( &ps_op->psearch_spec )->deref;
+ int slimit = LDAP_LIST_FIRST( &ps_op->psearch_spec )->slimit;
+ int tlimit = LDAP_LIST_FIRST( &ps_op->psearch_spec )->tlimit;
+ Filter *filter = LDAP_LIST_FIRST( &ps_op->psearch_spec )->filter;
+ struct berval *filterstr = LDAP_LIST_FIRST( &ps_op->psearch_spec )->filterstr;
+ int attrsonly = LDAP_LIST_FIRST( &ps_op->psearch_spec )->attrsonly;
+ int protocol = LDAP_LIST_FIRST( &ps_op->psearch_spec )->protocol;
+ AttributeName uuid_attr[2];
+ AttributeName *attrs;
+
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, ENTRY, "bdb_back_search\n", 0, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE, "=> bdb_back_search\n",
+ 0, 0, 0);
+#endif
+
+ manageDSAit = get_manageDSAit( ps_op );
+
+ rc = LOCK_ID (bdb->bi_dbenv, &locker );
+ switch(rc) {
+ case 0:
+ break;
+ default:
+ send_ldap_result( ps_conn, ps_op, rc=LDAP_OTHER,
+ NULL, "internal error", NULL, NULL );
+ return rc;
+ }
+
+ for ( num_ctrls = 0; num_ctrls < SLAP_SEARCH_MAX_CTRLS; num_ctrls++ )
+ ctrls[num_ctrls] = NULL;
+ num_ctrls = 0;
+
+ if ( !IS_BDB_REPLACE ) {
+ attrs = LDAP_LIST_FIRST(&ps_op->psearch_spec)->attrs;
+ } else {
+#ifdef LDAP_CLIENT_UPDATE
+ if ( protocol == LDAP_CLIENT_UPDATE ) {
+ attrs = uuid_attr;
+ attrs[0].an_desc = slap_schema.si_ad_entryUUID;
+ attrs[0].an_oc = NULL;
+ ber_dupbv( &attrs[0].an_name, &attrs[0].an_desc->ad_cname );
+ attrs[1].an_desc = NULL;
+ attrs[1].an_oc = NULL;
+ attrs[1].an_name.bv_len = 0;
+ attrs[1].an_name.bv_val = NULL;
+ } else
+#endif
+#ifdef LDAP_SYNC
+ if (protocol == LDAP_SYNC ) {
+ attrs = uuid_attr;
+ attrs[0].an_desc = NULL;
+ attrs[0].an_oc = NULL;
+ attrs[0].an_name.bv_len = 0;
+ attrs[0].an_name.bv_val = NULL;
+ } else
+#endif
+ {
+ rc = 1;
+ goto done;
+ }
+ }
+
+ if ( nbase->bv_len == 0 ) {
+ /* DIT root special case */
+ e = (Entry *) &slap_entry_root;
+ rc = 0;
+ } else
+#ifdef BDB_ALIASES
+ /* get entry with reader lock */
+ if ( deref & LDAP_DEREF_FINDING ) {
+ e = deref_dn_r( be, nbase-, &err, &matched, &text );
+
+ } else
+#endif
+ {
+dn2entry_retry:
+ rc = bdb_dn2entry_r( be, NULL, nbase, &e, &matched, 0, locker, &lock );
+ }
+
+ switch(rc) {
+ case DB_NOTFOUND:
+ case 0:
+ break;
+ case LDAP_BUSY:
+ if (e != NULL) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache,
+ e, &lock);
+ }
+ if (matched != NULL) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache,
+ matched, &lock);
+ }
+ send_ldap_result( ps_conn, ps_op, LDAP_BUSY,
+ NULL, "ldap server busy", NULL, NULL );
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+#ifdef LDAP_CLIENT_UPDATE
+ if ( IS_BDB_LCUP_REPLACE )
+ ch_free( attrs[0].an_name.bv_val );
+#endif
+ return LDAP_BUSY;
+ case DB_LOCK_DEADLOCK:
+ case DB_LOCK_NOTGRANTED:
+ goto dn2entry_retry;
+ default:
+ if (e != NULL) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache,
+ e, &lock);
+ }
+ if (matched != NULL) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache,
+ matched, &lock);
+ }
+ send_ldap_result( ps_conn, ps_op, rc=LDAP_OTHER,
+ NULL, "internal error", NULL, NULL );
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+#ifdef LDAP_CLIENT_UPDATE
+ if ( IS_BDB_LCUP_REPLACE )
+ ch_free( attrs[0].an_name.bv_val );
+#endif
+ return rc;
+ }
+
+ if ( e == NULL ) {
+ struct berval matched_dn = { 0, NULL };
+ BerVarray refs = NULL;
+
+ if ( matched != NULL ) {
+ BerVarray erefs;
+ ber_dupbv( &matched_dn, &matched->e_name );
+
+ erefs = is_entry_referral( matched )
+ ? get_entry_referrals( be, ps_conn, ps_op, matched )
+ : NULL;
+
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache,
+ matched, &lock);
+ matched = NULL;
+
+ if( erefs ) {
+ refs = referral_rewrite( erefs, &matched_dn,
+ base, scope );
+ ber_bvarray_free( erefs );
+ }
+
+ } else {
+ refs = referral_rewrite( default_referral,
+ NULL, base, scope );
+ }
+
+ send_ldap_result( ps_conn, ps_op, rc=LDAP_REFERRAL ,
+ matched_dn.bv_val, text, refs, NULL );
+
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+ if ( refs ) ber_bvarray_free( refs );
+ if ( matched_dn.bv_val ) ber_memfree( matched_dn.bv_val );
+#ifdef LDAP_CLIENT_UPDATE
+ if ( IS_BDB_LCUP_REPLACE )
+ ch_free( attrs[0].an_name.bv_val );
+#endif
+ return rc;
+ }
+
+ if (!manageDSAit && e != &slap_entry_root && is_entry_referral( e ) ) {
+ /* entry is a referral, don't allow add */
+ struct berval matched_dn;
+ BerVarray erefs, refs;
+
+ ber_dupbv( &matched_dn, &e->e_name );
+ erefs = get_entry_referrals( be, ps_conn, ps_op, e );
+ refs = NULL;
+
+ bdb_cache_return_entry_r( bdb->bi_dbenv, &bdb->bi_cache, e, &lock );
+ e = NULL;
+
+ if( erefs ) {
+ refs = referral_rewrite( erefs, &matched_dn,
+ base, scope );
+ ber_bvarray_free( erefs );
+ }
+
+#ifdef NEW_LOGGING
+ LDAP_LOG( OPERATION, RESULTS,
+ "bdb_search: entry is referral\n", 0, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE, "bdb_search: entry is referral\n",
+ 0, 0, 0 );
+#endif
+
+ send_ldap_result( ps_conn, ps_op, LDAP_REFERRAL,
+ matched_dn.bv_val,
+ refs ? NULL : "bad referral object",
+ refs, NULL );
+
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+ ber_bvarray_free( refs );
+ ber_memfree( matched_dn.bv_val );
+#ifdef LDAP_CLIENT_UPDATE
+ if ( IS_BDB_LCUP_REPLACE )
+ ch_free( attrs[0].an_name.bv_val );
+#endif
+ return 1;
+ }
+
+ /* if not root, get appropriate limits */
+ if ( be_isroot( be, &ps_op->o_ndn ) ) {
+ isroot = 1;
+ } else {
+ ( void ) get_limits( be, &ps_op->o_ndn, &limit );
+ }
+
+ /* The time/size limits come first because they require very little
+ * effort, so there's no chance the candidates are selected and then
+ * the request is not honored only because of time/size constraints */
+
+ /* if no time limit requested, use soft limit (unless root!) */
+ if ( isroot ) {
+ if ( tlimit == 0 ) {
+ tlimit = -1; /* allow root to set no limit */
+ }
+
+ if ( slimit == 0 ) {
+ slimit = -1;
+ }
+
+ } else {
+ /* if no limit is required, use soft limit */
+ if ( tlimit <= 0 ) {
+ tlimit = limit->lms_t_soft;
+
+ /* if requested limit higher than hard limit, abort */
+ } else if ( tlimit > limit->lms_t_hard ) {
+ /* no hard limit means use soft instead */
+ if ( limit->lms_t_hard == 0 && tlimit > limit->lms_t_soft ) {
+ tlimit = limit->lms_t_soft;
+
+ /* positive hard limit means abort */
+ } else if ( limit->lms_t_hard > 0 ) {
+ send_search_result( ps_conn, ps_op,
+ LDAP_UNWILLING_TO_PERFORM,
+ NULL, NULL, NULL, NULL, 0 );
+ rc = 0;
+ goto done;
+ }
+
+ /* negative hard limit means no limit */
+ }
+
+ /* if no limit is required, use soft limit */
+ if ( slimit <= 0 ) {
+ slimit = limit->lms_s_soft;
+
+ /* if requested limit higher than hard limit, abort */
+ } else if ( slimit > limit->lms_s_hard ) {
+ /* no hard limit means use soft instead */
+ if ( limit->lms_s_hard == 0 && slimit > limit->lms_s_soft ) {
+ slimit = limit->lms_s_soft;
+
+ /* positive hard limit means abort */
+ } else if ( limit->lms_s_hard > 0 ) {
+ send_search_result( ps_conn, ps_op,
+ LDAP_UNWILLING_TO_PERFORM,
+ NULL, NULL, NULL, NULL, 0 );
+ rc = 0;
+ goto done;
+ }
+
+ /* negative hard limit means no limit */
+ }
+ }
+
+ /* compute it anyway; root does not use it */
+ stoptime = ps_op->o_time + tlimit;
+
+ /* select candidates */
+ if ( scope == LDAP_SCOPE_BASE ) {
+ rc = psearch_base_candidate( be, e, candidates );
+ } else {
+ BDB_IDL_ALL( bdb, candidates );
+ rc = psearch_candidates( be, op, e, filter,
+ scope, deref, candidates );
+ }
+
+ if ( !BDB_IDL_IS_RANGE( candidates ) ) {
+ cursor = bdb_idl_search( candidates, entry->e_id );
+ if ( candidates[cursor] != entry->e_id ) {
+ goto test_done;
+ }
+ } else {
+ if ( entry->e_id < BDB_IDL_RANGE_FIRST(candidates) &&
+ entry->e_id > BDB_IDL_RANGE_LAST(candidates) )
+ {
+ goto test_done;
+ }
+ }
+
+ /* candidates = { e } */
+ candidates[0] = 1;
+ candidates[1] = entry->e_id;
+
+ /* need normalized dn below */
+ ber_dupbv( &realbase, &e->e_nname );
+
+ if ( e != &slap_entry_root ) {
+ bdb_cache_return_entry_r(bdb->bi_dbenv, &bdb->bi_cache, e, &lock);
+ }
+ e = NULL;
+
+ if ( candidates[0] == 0 ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, RESULTS,
+ "bdb_search: no candidates\n", 0, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE, "bdb_search: no candidates\n",
+ 0, 0, 0 );
+#endif
+
+ send_search_result( ps_conn, ps_op,
+ LDAP_SUCCESS,
+ NULL, NULL, NULL, NULL, 0 );
+
+ rc = 1;
+ goto done;
+ }
+
+ /* if not root and candidates exceed to-be-checked entries, abort */
+ if ( !isroot && limit->lms_s_unchecked != -1 ) {
+ if ( BDB_IDL_N(candidates) > (unsigned) limit->lms_s_unchecked ) {
+ send_search_result( ps_conn, ps_op, LDAP_ADMINLIMIT_EXCEEDED,
+ NULL, NULL, NULL, NULL, 0 );
+ rc = 1;
+ goto done;
+ }
+ }
+
+#ifdef LDAP_CLIENT_UPDATE
+ if ( protocol == LDAP_CLIENT_UPDATE ) {
+ cookief.f_choice = LDAP_FILTER_AND;
+ cookief.f_and = &csnfnot;
+ cookief.f_next = NULL;
+
+ csnfnot.f_choice = LDAP_FILTER_NOT;
+ csnfnot.f_not = &csnfeq;
+ csnfnot.f_next = &csnfand;
+
+ csnfeq.f_choice = LDAP_FILTER_EQUALITY;
+ csnfeq.f_ava = &aa_eq;
+ csnfeq.f_av_desc = slap_schema.si_ad_entryCSN;
+ ber_dupbv( &csnfeq.f_av_value, &ps_op->o_clientupdate_state );
+
+ csnfand.f_choice = LDAP_FILTER_AND;
+ csnfand.f_and = &csnfge;
+ csnfand.f_next = NULL;
+
+ csnfge.f_choice = LDAP_FILTER_GE;
+ csnfge.f_ava = &aa_ge;
+ csnfge.f_av_desc = slap_schema.si_ad_entryCSN;
+ ber_dupbv( &csnfge.f_av_value, &ps_op->o_clientupdate_state );
+ csnfge.f_next = filter;
+ }
+#endif
+#if defined(LDAP_CLIENT_UPDATE) && defined(LDAP_SYNC)
+ else
+#endif
+#ifdef LDAP_SYNC
+ if ( protocol == LDAP_SYNC ) {
+ cookief.f_choice = LDAP_FILTER_AND;
+ cookief.f_and = &csnfnot;
+ cookief.f_next = NULL;
+
+ csnfnot.f_choice = LDAP_FILTER_NOT;
+ csnfnot.f_not = &csnfeq;
+ csnfnot.f_next = &csnfand;
+
+ csnfeq.f_choice = LDAP_FILTER_EQUALITY;
+ csnfeq.f_ava = &aa_eq;
+ csnfeq.f_av_desc = slap_schema.si_ad_entryCSN;
+ ber_dupbv( &csnfeq.f_av_value, &ps_op->o_sync_state );
+
+ csnfand.f_choice = LDAP_FILTER_AND;
+ csnfand.f_and = &csnfge;
+ csnfand.f_next = NULL;
+
+ csnfge.f_choice = LDAP_FILTER_GE;
+ csnfge.f_ava = &aa_ge;
+ csnfge.f_av_desc = slap_schema.si_ad_entryCSN;
+ ber_dupbv( &csnfge.f_av_value, &ps_op->o_sync_state );
+ csnfge.f_next = filter;
+ }
+#endif
+
+ id = entry->e_id;
+
+ /* check for abandon */
+ if ( ps_op->o_abandon ) {
+ rc = 0;
+ goto done;
+ }
+
+ /* check time limit */
+ if ( tlimit != -1 && slap_get_time() > stoptime ) {
+ send_search_result( ps_conn, ps_op, rc = LDAP_TIMELIMIT_EXCEEDED,
+ NULL, NULL, v2refs, NULL, nentries );
+ goto done;
+ }
+
+ e = entry;
+
+#ifdef BDB_SUBENTRIES
+ if ( is_entry_subentry( e ) ) {
+ if( scope != LDAP_SCOPE_BASE ) {
+ if(!get_subentries_visibility( ps_op )) {
+ /* only subentries are visible */
+ goto test_done;
+ }
+
+ } else if ( get_subentries( ps_op ) &&
+ !get_subentries_visibility( ps_op ))
+ {
+ /* only subentries are visible */
+ goto test_done;
+ }
+
+ } else if ( get_subentries_visibility( ps_op )) {
+ /* only subentries are visible */
+ goto test_done;
+ }
+#endif
+
+#ifdef BDB_ALIASES
+ if ( deref & LDAP_DEREF_SEARCHING && is_entry_alias( e ) ) {
+ Entry *matched;
+ int err;
+ const char *text;
+
+ e = deref_entry_r( be, e, &err, &matched, &text );
+
+ if( e == NULL ) {
+ e = matched;
+ goto test_done;
+ }
+
+ if( e->e_id == id ) {
+ /* circular loop */
+ goto test_done;
+ }
+
+ /* need to skip alias which deref into scope */
+ if( scope & LDAP_SCOPE_ONELEVEL ) {
+ struct berval pdn;
+
+ dnParent( &e->e_nname, &pdn ):
+ if ( ber_bvcmp( pdn, &realbase ) ) {
+ goto test_done;
+ }
+
+ } else if ( dnIsSuffix( &e->e_nname, &realbase ) ) {
+ /* alias is within scope */
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, RESULTS,
+ "bdb_search: \"%s\" in subtree\n", e->edn, 0, 0);
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_search: \"%s\" in subtree\n",
+ e->e_dn, 0, 0 );
+#endif
+ goto test_done;
+ }
+
+ scopeok = 1;
+ }
+#endif
+
+ /*
+ * if it's a referral, add it to the list of referrals. only do
+ * this for non-base searches, and don't check the filter
+ * explicitly here since it's only a candidate anyway.
+ */
+ if ( !manageDSAit && scope != LDAP_SCOPE_BASE &&
+ is_entry_referral( e ) )
+ {
+ struct berval dn;
+
+ /* check scope */
+ if ( !scopeok && scope == LDAP_SCOPE_ONELEVEL ) {
+ if ( !be_issuffix( be, &e->e_nname ) ) {
+ dnParent( &e->e_nname, &dn );
+ scopeok = dn_match( &dn, &realbase );
+ } else {
+ scopeok = (realbase.bv_len == 0);
+ }
+
+ } else if ( !scopeok && scope == LDAP_SCOPE_SUBTREE ) {
+ scopeok = dnIsSuffix( &e->e_nname, &realbase );
+
+ } else {
+ scopeok = 1;
+ }
+
+ if( scopeok ) {
+ BerVarray erefs = get_entry_referrals(
+ be, ps_conn, ps_op, e );
+ BerVarray refs = referral_rewrite( erefs,
+ &e->e_name, NULL,
+ scope == LDAP_SCOPE_SUBTREE
+ ? LDAP_SCOPE_SUBTREE
+ : LDAP_SCOPE_BASE );
+
+ send_search_reference( be, ps_conn, ps_op,
+ e, refs, NULL, &v2refs );
+
+ ber_bvarray_free( refs );
+
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG(OPERATION, DETAIL2,
+ "bdb_search: candidate referral %ld scope not okay\n",
+ id, 0, 0 );
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_search: candidate referral %ld scope not okay\n",
+ id, 0, 0 );
+#endif
+ }
+
+ goto test_done;
+ }
+
+ if ( psearch_type != LDAP_PSEARCH_BY_SCOPEOUT ) {
+ rc = test_filter( be, ps_conn, ps_op, e, &cookief );
+ } else {
+ rc = LDAP_COMPARE_TRUE;
+ }
+
+ if ( rc == LDAP_COMPARE_TRUE ) {
+ struct berval dn;
+
+ /* check scope */
+ if ( !scopeok && scope == LDAP_SCOPE_ONELEVEL ) {
+ if ( be_issuffix( be, &e->e_nname ) ) {
+ scopeok = (realbase.bv_len == 0);
+ } else {
+ dnParent( &e->e_nname, &dn );
+ scopeok = dn_match( &dn, &realbase );
+ }
+
+ } else if ( !scopeok && scope == LDAP_SCOPE_SUBTREE ) {
+ scopeok = dnIsSuffix( &e->e_nname, &realbase );
+
+ } else {
+ scopeok = 1;
+ }
+
+ if ( scopeok ) {
+ /* check size limit */
+ if ( --slimit == -1 ) {
+ send_search_result( ps_conn, ps_op,
+ rc = LDAP_SIZELIMIT_EXCEEDED, NULL, NULL,
+ v2refs, NULL, nentries );
+ goto done;
+ }
+
+ if (e) {
+ int result;
+
+#if 0 /* noop is masked SLAP_CTRL_UPDATE */
+ if( ps_op->o_noop ) {
+ result = 0;
+ } else
+#endif
+ {
+#ifdef LDAP_SYNC
+ int premodify_found = 0;
+ int entry_sync_state;
+#endif
+
+ if ( psearch_type == LDAP_PSEARCH_BY_ADD ||
+ psearch_type == LDAP_PSEARCH_BY_DELETE ||
+ psearch_type == LDAP_PSEARCH_BY_MODIFY ||
+ psearch_type == LDAP_PSEARCH_BY_SCOPEOUT )
+ {
+ if ( psearch_type == LDAP_PSEARCH_BY_MODIFY ) {
+ struct psid_entry* psid_e;
+ LDAP_LIST_FOREACH( psid_e, &op->premodify_list, link)
+ {
+ if( psid_e->ps == LDAP_LIST_FIRST(&ps_op->psearch_spec))
+ {
+#ifdef LDAP_SYNC
+ premodify_found = 1;
+#endif
+ LDAP_LIST_REMOVE(psid_e, link);
+ break;
+ }
+ }
+ if (psid_e != NULL) free (psid_e);
+ }
+#ifdef LDAP_SYNC
+ if ( psearch_type == LDAP_PSEARCH_BY_ADD )
+ entry_sync_state = LDAP_SYNC_ADD;
+ else if ( psearch_type == LDAP_PSEARCH_BY_DELETE )
+ entry_sync_state = LDAP_SYNC_DELETE;
+ else if ( psearch_type == LDAP_PSEARCH_BY_MODIFY ) {
+ if ( premodify_found )
+ entry_sync_state = LDAP_SYNC_MODIFY;
+ else
+ entry_sync_state = LDAP_SYNC_ADD;
+ } else if ( psearch_type == LDAP_PSEARCH_BY_SCOPEOUT )
+ entry_sync_state = LDAP_SYNC_DELETE;
+ else {
+ rc = 1;
+ goto done;
+ }
+#endif
+
+#ifdef LDAP_CLIENT_UPDATE
+ if ( protocol == LDAP_CLIENT_UPDATE ) {
+ int entry_count = ++(LDAP_LIST_FIRST(&ps_op->psearch_spec)->entry_count);
+ if ( IS_BDB_REPLACE ) {
+ rc = bdb_build_lcup_update_ctrl( ps_conn, ps_op, e, entry_count, ctrls,
+ num_ctrls++, &latest_entrycsn_bv, SLAP_LCUP_ENTRY_DELETED_TRUE );
+ } else {
+ rc = bdb_build_lcup_update_ctrl( ps_conn, ps_op, e, entry_count, ctrls,
+ num_ctrls++, &latest_entrycsn_bv, SLAP_LCUP_ENTRY_DELETED_FALSE );
+ }
+ if ( rc != LDAP_SUCCESS )
+ goto done;
+ result = send_search_entry( be, ps_conn, ps_op, e, attrs, attrsonly, ctrls );
+ if ( ctrls[num_ctrls-1]->ldctl_value.bv_val != NULL )
+ ch_free( ctrls[num_ctrls-1]->ldctl_value.bv_val );
+ ch_free( ctrls[--num_ctrls] );
+ ctrls[num_ctrls] = NULL;
+ } else
+#endif
+#ifdef LDAP_SYNC
+ if ( protocol == LDAP_SYNC ) {
+ rc = bdb_build_sync_state_ctrl( ps_conn, ps_op, e, entry_sync_state, ctrls,
+ num_ctrls++, 1, &latest_entrycsn_bv );
+ if ( rc != LDAP_SUCCESS )
+ goto done;
+ result = send_search_entry( be, ps_conn, ps_op, e, attrs, attrsonly, ctrls );
+ if ( ctrls[num_ctrls-1]->ldctl_value.bv_val != NULL )
+ ch_free( ctrls[num_ctrls-1]->ldctl_value.bv_val );
+ ch_free( ctrls[--num_ctrls] );
+ ctrls[num_ctrls] = NULL;
+ } else
+#endif
+ {
+ rc = 1;
+ goto done;
+ }
+
+ } else if ( psearch_type == LDAP_PSEARCH_BY_PREMODIFY ) {
+ struct psid_entry* psid_e;
+ psid_e = (struct psid_entry *) calloc (1,
+ sizeof(struct psid_entry));
+ psid_e->ps = LDAP_LIST_FIRST(&ps_op->psearch_spec);
+ LDAP_LIST_INSERT_HEAD( &op->premodify_list,
+ psid_e, link );
+
+ } else {
+ printf("Error !\n");
+ }
+ }
+
+ switch (result) {
+ case 0: /* entry sent ok */
+ nentries++;
+ break;
+ case 1: /* entry not sent */
+ break;
+ case -1: /* connection closed */
+ rc = LDAP_OTHER;
+ goto done;
+ }
+ }
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, RESULTS,
+ "bdb_search: %ld scope not okay\n", (long) id, 0, 0);
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_search: %ld scope not okay\n", (long) id, 0, 0 );
+#endif
+ }
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, RESULTS,
+ "bdb_search: %ld does match filter\n", (long) id, 0, 0);
+#else
+ Debug( LDAP_DEBUG_TRACE,
+ "bdb_search: %ld does match filter\n",
+ (long) id, 0, 0 );
+#endif
+ }
+
+test_done:
+ rc = LDAP_SUCCESS;
+
+done:
+ if ( csnfeq.f_ava != NULL && csnfeq.f_av_value.bv_val != NULL ) {
+ ch_free( csnfeq.f_av_value.bv_val );
+ }
+
+ if ( csnfge.f_ava != NULL && csnfge.f_av_value.bv_val != NULL ) {
+ ch_free( csnfge.f_av_value.bv_val );
+ }
+
+ LOCK_ID_FREE( bdb->bi_dbenv, locker );
+
+ if( v2refs ) ber_bvarray_free( v2refs );
+ if( realbase.bv_val ) ch_free( realbase.bv_val );
+#ifdef LDAP_CLIENT_UPDATE
+ if ( IS_BDB_LCUP_REPLACE )
+ ch_free( attrs[0].an_name.bv_val );
+#endif
+
+ return rc;
+}
+
+static int psearch_base_candidate(
+ BackendDB *be,
+ Entry *e,
+ ID *ids )
+{
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, ENTRY,
+ "psearch_base_candidate: base: \"%s\" (0x%08lx)\n", e->e_dn, (long) e->e_id, 0);
+#else
+ Debug(LDAP_DEBUG_ARGS, "psearch_base_candidates: base: \"%s\" (0x%08lx)\n",
+ e->e_dn, (long) e->e_id, 0);
+#endif
+
+ ids[0] = 1;
+ ids[1] = e->e_id;
+ return 0;
+}
+
+/* Look for "objectClass Present" in this filter.
+ * Also count depth of filter tree while we're at it.
+ */
+static int psearch_oc_filter(
+ Filter *f,
+ int cur,
+ int *max
+)
+{
+ int rc = 0;
+
+ if( cur > *max ) *max = cur;
+
+ switch(f->f_choice) {
+ case LDAP_FILTER_PRESENT:
+ if (f->f_desc == slap_schema.si_ad_objectClass) {
+ rc = 1;
+ }
+ break;
+
+ case LDAP_FILTER_AND:
+ case LDAP_FILTER_OR:
+ cur++;
+ for (f=f->f_and; f; f=f->f_next) {
+ (void) psearch_oc_filter(f, cur, max);
+ }
+ break;
+
+ default:
+ break;
+ }
+ return rc;
+}
+
+static int psearch_candidates(
+ BackendDB *be,
+ Operation *op,
+ Entry *e,
+ Filter *filter,
+ int scope,
+ int deref,
+ ID *ids )
+{
+ int rc, depth = 1;
+ Filter f, scopef, rf, xf;
+ ID *stack;
+ AttributeAssertion aa_ref;
+#ifdef BDB_SUBENTRIES
+ Filter sf;
+ AttributeAssertion aa_subentry;
+#endif
+#ifdef BDB_ALIASES
+ Filter af;
+ AttributeAssertion aa_alias;
+#endif
+
+ /*
+ * This routine takes as input a filter (user-filter)
+ * and rewrites it as follows:
+ * (&(scope=DN)[(objectClass=subentry)]
+ * (|[(objectClass=referral)(objectClass=alias)](user-filter))
+ */
+
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, ENTRY,
+ "psearch_candidates: base=\"%s\" (0x%08lx) scope=%d\n",
+ e->e_dn, (long) e->e_id, scope);
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "psearch_candidates: base=\"%s\" (0x%08lx) scope=%d\n",
+ e->e_dn, (long) e->e_id, scope );
+#endif
+
+ xf.f_or = filter;
+ xf.f_choice = LDAP_FILTER_OR;
+ xf.f_next = NULL;
+
+ /* If the user's filter uses objectClass=*,
+ * these clauses are redundant.
+ */
+ if (!psearch_oc_filter(filter, 1, &depth) && !get_subentries_visibility(op) ) {
+ if( !get_manageDSAit(op) ) { /* match referrals */
+ struct berval bv_ref = { sizeof("REFERRAL")-1, "REFERRAL" };
+ rf.f_choice = LDAP_FILTER_EQUALITY;
+ rf.f_ava = &aa_ref;
+ rf.f_av_desc = slap_schema.si_ad_objectClass;
+ rf.f_av_value = bv_ref;
+ rf.f_next = xf.f_or;
+ xf.f_or = &rf;
+ }
+
+#ifdef BDB_ALIASES
+ if( deref & LDAP_DEREF_SEARCHING ) { /* match aliases */
+ struct berval bv_alias = { sizeof("ALIAS")-1, "ALIAS" };
+ af.f_choice = LDAP_FILTER_EQUALITY;
+ af.f_ava = &aa_alias;
+ af.f_av_desc = slap_schema.si_ad_objectClass;
+ af.f_av_value = bv_alias;
+ af.f_next = xf.f_or;
+ xf.f_or = ⁡
+ }
+#endif
+ /* We added one of these clauses, filter depth increased */
+ if( xf.f_or != filter ) depth++;
+ }
+
+ f.f_next = NULL;
+ f.f_choice = LDAP_FILTER_AND;
+ f.f_and = &scopef;
+ scopef.f_choice = scope == LDAP_SCOPE_SUBTREE
+ ? SLAPD_FILTER_DN_SUBTREE
+ : SLAPD_FILTER_DN_ONE;
+ scopef.f_dn = &e->e_nname;
+ scopef.f_next = xf.f_or == filter ? filter : &xf ;
+ /* Filter depth increased again, adding scope clause */
+ depth++;
+
+#ifdef BDB_SUBENTRIES
+ if( get_subentries_visibility( op ) ) {
+ struct berval bv_subentry = { sizeof("SUBENTRY")-1, "SUBENTRY" };
+ sf.f_choice = LDAP_FILTER_EQUALITY;
+ sf.f_ava = &aa_subentry;
+ sf.f_av_desc = slap_schema.si_ad_objectClass;
+ sf.f_av_value = bv_subentry;
+ sf.f_next = scopef.f_next;
+ scopef.f_next = &sf;
+ }
+#endif
+
+ /* Allocate IDL stack, plus 1 more for former tmp */
+ stack = ch_malloc( (depth + 1) * BDB_IDL_UM_SIZE * sizeof( ID ) );
+
+ rc = bdb_filter_candidates( be, &f, ids, stack, stack+BDB_IDL_UM_SIZE );
+
+ ch_free( stack );
+
+ if( rc ) {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, DETAIL1,
+ "bdb_psearch_candidates: failed (rc=%d)\n", rc, 0, 0 );
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "bdb_psearch_candidates: failed (rc=%d)\n",
+ rc, NULL, NULL );
+#endif
+
+ } else {
+#ifdef NEW_LOGGING
+ LDAP_LOG ( OPERATION, DETAIL1,
+ "bdb_psearch_candidates: id=%ld first=%ld last=%ld\n",
+ (long) ids[0], (long) BDB_IDL_FIRST(ids),
+ (long) BDB_IDL_LAST(ids));
+#else
+ Debug(LDAP_DEBUG_TRACE,
+ "bdb_psearch_candidates: id=%ld first=%ld last=%ld\n",
+ (long) ids[0],
+ (long) BDB_IDL_FIRST(ids),
+ (long) BDB_IDL_LAST(ids) );
+#endif
+ }
+
+ return rc;
+}
+
+
+#endif