-/*
- * Copyright 1998-2001 The OpenLDAP Foundation, All Rights Reserved.
- * COPYING RESTRICTIONS APPLY, see COPYRIGHT file
- *
- * Copyright 2001, Pierangelo Masarati, All rights reserved. <ando@sys-net.it>
- *
- * This work has been developed to fulfill the requirements
- * of SysNet s.n.c. <http:www.sys-net.it> and it has been donated
- * to the OpenLDAP Foundation in the hope that it may be useful
- * to the Open Source community, but WITHOUT ANY WARRANTY.
- *
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- *
- * 1. The author and SysNet s.n.c. are not responsible for the consequences
- * of use of this software, no matter how awful, even if they arise from
- * flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- * explicit claim or by omission. Since few users ever read sources,
- * credits should appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- * misrepresented as being the original software. Since few users
- * ever read sources, credits should appear in the documentation.
- * SysNet s.n.c. cannot be responsible for the consequences of the
- * alterations.
- *
- * 4. This notice may not be removed or altered.
+/* $OpenLDAP$ */
+/* This work is part of OpenLDAP Software <http://www.openldap.org/>.
*
+ * Copyright 1999-2007 The OpenLDAP Foundation.
+ * Portions Copyright 2001-2003 Pierangelo Masarati.
+ * Portions Copyright 1999-2003 Howard Chu.
+ * All rights reserved.
*
- * This software is based on the backend back-ldap, implemented
- * by Howard Chu <hyc@highlandsun.com>, and modified by Mark Valence
- * <kurash@sassafras.com>, Pierangelo Masarati <ando@sys-net.it> and other
- * contributors. The contribution of the original software to the present
- * implementation is acknowledged in this copyright statement.
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted only as authorized by the OpenLDAP
+ * Public License.
*
- * A special acknowledgement goes to Howard for the overall architecture
- * (and for borrowing large pieces of code), and to Mark, who implemented
- * from scratch the attribute/objectclass mapping.
- *
- * The original copyright statement follows.
- *
- * Copyright 1999, Howard Chu, All rights reserved. <hyc@highlandsun.com>
- *
- * Permission is granted to anyone to use this software for any purpose
- * on any computer system, and to alter it and redistribute it, subject
- * to the following restrictions:
- *
- * 1. The author is not responsible for the consequences of use of this
- * software, no matter how awful, even if they arise from flaws in it.
- *
- * 2. The origin of this software must not be misrepresented, either by
- * explicit claim or by omission. Since few users ever read sources,
- * credits should appear in the documentation.
- *
- * 3. Altered versions must be plainly marked as such, and must not be
- * misrepresented as being the original software. Since few users
- * ever read sources, credits should appear in the
- * documentation.
+ * A copy of this license is available in the file LICENSE in the
+ * top-level directory of the distribution or, alternatively, at
+ * <http://www.OpenLDAP.org/license.html>.
+ */
+/* ACKNOWLEDGEMENTS:
+ * This work was initially developed by the Howard Chu for inclusion
+ * in OpenLDAP Software and subsequently enhanced by Pierangelo
+ * Masarati.
+ */
+
+#include "portable.h"
+
+#include <stdio.h>
+
+#include <ac/socket.h>
+#include <ac/string.h>
+#include <ac/time.h>
+
+#include "lutil.h"
+#include "slap.h"
+#include "../back-ldap/back-ldap.h"
+#include "back-meta.h"
+#undef ldap_debug /* silence a warning in ldap-int.h */
+#include "ldap_log.h"
+#include "../../../libraries/libldap/ldap-int.h"
+
+/* IGNORE means that target does not (no longer) participate
+ * in the search;
+ * NOTREADY means the search on that target has not been initialized yet
+ */
+#define META_MSGID_IGNORE (-1)
+#define META_MSGID_NEED_BIND (-2)
+
+static int
+meta_send_entry(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t *mc,
+ int i,
+ LDAPMessage *e );
+
+typedef enum meta_search_candidate_t {
+ META_SEARCH_UNDEFINED = -2,
+ META_SEARCH_ERR = -1,
+ META_SEARCH_NOT_CANDIDATE,
+ META_SEARCH_CANDIDATE,
+ META_SEARCH_BINDING,
+ META_SEARCH_NEED_BIND
+} meta_search_candidate_t;
+
+/*
+ * meta_search_dobind_init()
*
- * 4. This notice may not be removed or altered.
- *
+ * initiates bind for a candidate target of a search.
*/
+static meta_search_candidate_t
+meta_search_dobind_init(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t **mcp,
+ int candidate,
+ SlapReply *candidates )
+{
+ metaconn_t *mc = *mcp;
+ metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
+ metatarget_t *mt = mi->mi_targets[ candidate ];
+ metasingleconn_t *msc = &mc->mc_conns[ candidate ];
+
+ struct berval binddn = msc->msc_bound_ndn,
+ cred = msc->msc_cred;
+ int method;
+
+ int rc;
+
+ meta_search_candidate_t retcode;
+
+ Debug( LDAP_DEBUG_TRACE, "%s >>> meta_search_dobind_init[%d]\n",
+ op->o_log_prefix, candidate, 0 );
+
+ /*
+ * all the targets are already bound as pseudoroot
+ */
+ if ( mc->mc_authz_target == META_BOUND_ALL ) {
+ return META_SEARCH_CANDIDATE;
+ }
+
+ retcode = META_SEARCH_BINDING;
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ if ( LDAP_BACK_CONN_ISBOUND( msc ) || LDAP_BACK_CONN_ISANON( msc ) ) {
+ /* already bound (or anonymous) */
+
+#ifdef DEBUG_205
+ char buf[ SLAP_TEXT_BUFLEN ] = { '\0' };
+ int bound = 0;
+
+ if ( LDAP_BACK_CONN_ISBOUND( msc ) ) {
+ bound = 1;
+ }
+
+ snprintf( buf, sizeof( buf ), " mc=%p ld=%p%s DN=\"%s\"",
+ (void *)mc, (void *)msc->msc_ld,
+ bound ? " bound" : " anonymous",
+ bound == 0 ? "" : msc->msc_bound_ndn.bv_val );
+ Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
+ op->o_log_prefix, candidate, buf );
+#endif /* DEBUG_205 */
+
+ retcode = META_SEARCH_CANDIDATE;
+
+ } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) ) {
+ /* another thread is binding the target for this conn; wait */
+
+#ifdef DEBUG_205
+ char buf[ SLAP_TEXT_BUFLEN ] = { '\0' };
+
+ snprintf( buf, sizeof( buf ), " mc=%p ld=%p needbind",
+ (void *)mc, (void *)msc->msc_ld );
+ Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
+ op->o_log_prefix, candidate, buf );
+#endif /* DEBUG_205 */
+
+ candidates[ candidate ].sr_msgid = META_MSGID_NEED_BIND;
+ retcode = META_SEARCH_NEED_BIND;
+
+ } else {
+ /* we'll need to bind the target for this conn */
+
+#ifdef DEBUG_205
+ char buf[ SLAP_TEXT_BUFLEN ];
+
+ snprintf( buf, sizeof( buf ), " mc=%p ld=%p binding",
+ (void *)mc, (void *)msc->msc_ld );
+ Debug( LDAP_DEBUG_ANY, "### %s meta_search_dobind_init[%d]%s\n",
+ op->o_log_prefix, candidate, buf );
+#endif /* DEBUG_205 */
+
+ if ( msc->msc_ld == NULL ) {
+ /* for some reason (e.g. because formerly in "binding"
+ * state, with eventual connection expiration or invalidation)
+ * it was not initialized as expected */
+
+ Debug( LDAP_DEBUG_ANY, "%s meta_search_dobind_init[%d] mc=%p ld=NULL\n",
+ op->o_log_prefix, candidate, (void *)mc );
+
+ rc = meta_back_init_one_conn( op, rs, *mcp, candidate,
+ LDAP_BACK_CONN_ISPRIV( *mcp ), LDAP_BACK_DONTSEND, 0 );
+ switch ( rc ) {
+ case LDAP_SUCCESS:
+ assert( msc->msc_ld != NULL );
+ break;
+
+ case LDAP_SERVER_DOWN:
+ case LDAP_UNAVAILABLE:
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ goto down;
+
+ default:
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ goto other;
+ }
+ }
+
+ LDAP_BACK_CONN_BINDING_SET( msc );
+ }
+
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+
+ if ( retcode != META_SEARCH_BINDING ) {
+ return retcode;
+ }
+
+ /* NOTE: this obsoletes pseudorootdn */
+ if ( op->o_conn != NULL &&
+ !op->o_do_not_cache &&
+ ( BER_BVISNULL( &msc->msc_bound_ndn ) ||
+ BER_BVISEMPTY( &msc->msc_bound_ndn ) ||
+ ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) )
+ {
+ rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, LDAP_BACK_DONTSEND, &binddn, &cred, &method );
+ if ( rc != LDAP_SUCCESS ) {
+ goto down;
+ }
+
+ /* NOTE: we copy things here, even if bind didn't succeed yet,
+ * because the connection is not shared until bind is over */
+ if ( !BER_BVISNULL( &binddn ) ) {
+ ber_bvreplace( &msc->msc_bound_ndn, &binddn );
+ if ( LDAP_BACK_SAVECRED( mi ) && !BER_BVISNULL( &cred ) ) {
+ if ( !BER_BVISNULL( &msc->msc_cred ) ) {
+ memset( msc->msc_cred.bv_val, 0,
+ msc->msc_cred.bv_len );
+ }
+ ber_bvreplace( &msc->msc_cred, &cred );
+ }
+ }
+
+ if ( LDAP_BACK_CONN_ISBOUND( msc ) ) {
+ /* apparently, idassert was configured with SASL bind,
+ * so bind occurred inside meta_back_proxy_authz_cred() */
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ LDAP_BACK_CONN_BINDING_CLEAR( msc );
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ return META_SEARCH_CANDIDATE;
+ }
+
+ /* paranoid */
+ switch ( method ) {
+ case LDAP_AUTH_NONE:
+ case LDAP_AUTH_SIMPLE:
+ /* do a simple bind with binddn, cred */
+ break;
+
+ default:
+ assert( 0 );
+ break;
+ }
+ }
+
+ assert( msc->msc_ld != NULL );
+
+retry:;
+ rc = ldap_sasl_bind( msc->msc_ld, binddn.bv_val, LDAP_SASL_SIMPLE, &cred,
+ NULL, NULL, &candidates[ candidate ].sr_msgid );
+
+#ifdef DEBUG_205
+ {
+ char buf[ SLAP_TEXT_BUFLEN ];
+
+ snprintf( buf, sizeof( buf ), "meta_search_dobind_init[%d] mc=%p ld=%p rc=%d",
+ candidate, (void *)mc, (void *)mc->mc_conns[ candidate ].msc_ld, rc );
+ Debug( LDAP_DEBUG_ANY, "### %s %s\n",
+ op->o_log_prefix, buf, 0 );
+ }
+#endif /* DEBUG_205 */
+
+ switch ( rc ) {
+ case LDAP_SUCCESS:
+ assert( candidates[ candidate ].sr_msgid >= 0 );
+ META_BINDING_SET( &candidates[ candidate ] );
+ return META_SEARCH_BINDING;
+
+ case LDAP_SERVER_DOWN:
+down:;
+ /* This is the worst thing that could happen:
+ * the search will wait until the retry is over. */
+ if ( !META_IS_RETRYING( &candidates[ candidate ] ) ) {
+ META_RETRYING_SET( &candidates[ candidate ] );
+
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+
+ assert( mc->mc_refcnt > 0 );
+ if ( StatslogTest( LDAP_DEBUG_ANY ) ) {
+ char buf[ SLAP_TEXT_BUFLEN ];
+
+ /* this lock is required; however,
+ * it's invoked only when logging is on */
+ ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex );
+ snprintf( buf, sizeof( buf ),
+ "retrying URI=\"%s\" DN=\"%s\"",
+ mt->mt_uri,
+ BER_BVISNULL( &msc->msc_bound_ndn ) ?
+ "" : msc->msc_bound_ndn.bv_val );
+ ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex );
+
+ Debug( LDAP_DEBUG_ANY,
+ "%s meta_search_dobind_init[%d]: %s.\n",
+ op->o_log_prefix, candidate, buf );
+ }
+
+ meta_clear_one_candidate( op, mc, candidate );
+ LDAP_BACK_CONN_ISBOUND_CLEAR( msc );
+
+ ( void )rewrite_session_delete( mt->mt_rwmap.rwm_rw, op->o_conn );
+
+ /* mc here must be the regular mc, reset and ready for init */
+ rc = meta_back_init_one_conn( op, rs, mc, candidate,
+ LDAP_BACK_CONN_ISPRIV( mc ), LDAP_BACK_DONTSEND, 0 );
+
+ if ( rc == LDAP_SUCCESS ) {
+ LDAP_BACK_CONN_BINDING_SET( msc );
+ }
+
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+
+ if ( rc == LDAP_SUCCESS ) {
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ goto retry;
+ }
+ }
+
+ if ( *mcp == NULL ) {
+ retcode = META_SEARCH_ERR;
+ rs->sr_err = LDAP_UNAVAILABLE;
+ break;
+ }
+ /* fall thru */
+
+ default:
+other:;
+ rs->sr_err = rc;
+ rc = slap_map_api2result( rs );
+
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ meta_clear_one_candidate( op, mc, candidate );
+ candidates[ candidate ].sr_err = rc;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ LDAP_BACK_CONN_TAINTED_SET( mc );
+ meta_back_release_conn_lock( mi, mc, 0 );
+ *mcp = NULL;
+ rs->sr_err = rc;
+
+ retcode = META_SEARCH_ERR;
+
+ } else {
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ }
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ break;
+ }
+
+ return retcode;
+}
+
+static meta_search_candidate_t
+meta_search_dobind_result(
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t **mcp,
+ int candidate,
+ SlapReply *candidates,
+ LDAPMessage *res )
+{
+ metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
+ metaconn_t *mc = *mcp;
+ metasingleconn_t *msc = &mc->mc_conns[ candidate ];
+
+ meta_search_candidate_t retcode = META_SEARCH_NOT_CANDIDATE;
+ int rc;
+
+ assert( msc->msc_ld != NULL );
+
+ /* FIXME: matched? referrals? response controls? */
+ rc = ldap_parse_result( msc->msc_ld, res,
+ &candidates[ candidate ].sr_err,
+ NULL, NULL, NULL, NULL, 0 );
+ if ( rc != LDAP_SUCCESS ) {
+ candidates[ candidate ].sr_err = rc;
+
+ } else {
+ rc = slap_map_api2result( &candidates[ candidate ] );
+ }
+
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ LDAP_BACK_CONN_BINDING_CLEAR( msc );
+ if ( rc != LDAP_SUCCESS ) {
+ meta_clear_one_candidate( op, mc, candidate );
+ candidates[ candidate ].sr_err = rc;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ LDAP_BACK_CONN_TAINTED_SET( mc );
+ meta_back_release_conn_lock( mi, mc, 0 );
+ *mcp = NULL;
+ retcode = META_SEARCH_ERR;
+ rs->sr_err = rc;
+ }
+
+ } else {
+ /* FIXME: check if bound as idassert authcDN! */
+ if ( BER_BVISNULL( &msc->msc_bound_ndn )
+ || BER_BVISEMPTY( &msc->msc_bound_ndn ) )
+ {
+ LDAP_BACK_CONN_ISANON_SET( msc );
+
+ } else {
+ LDAP_BACK_CONN_ISBOUND_SET( msc );
+ }
+ retcode = META_SEARCH_CANDIDATE;
+ }
+
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ META_BINDING_CLEAR( &candidates[ candidate ] );
+
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+
+ return retcode;
+}
+
+static meta_search_candidate_t
+meta_back_search_start(
+ Operation *op,
+ SlapReply *rs,
+ dncookie *dc,
+ metaconn_t **mcp,
+ int candidate,
+ SlapReply *candidates )
+{
+ metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
+ metatarget_t *mt = mi->mi_targets[ candidate ];
+ metasingleconn_t *msc = &(*mcp)->mc_conns[ candidate ];
+ struct berval realbase = op->o_req_dn;
+ int realscope = op->ors_scope;
+ struct berval mbase = BER_BVNULL;
+ struct berval mfilter = BER_BVNULL;
+ char **mapped_attrs = NULL;
+ int rc;
+ meta_search_candidate_t retcode;
+ struct timeval tv, *tvp = NULL;
+ int nretries = 1;
+ LDAPControl **ctrls = NULL;
+
+ /* this should not happen; just in case... */
+ if ( msc->msc_ld == NULL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s: meta_back_search_start candidate=%d ld=NULL%s.\n",
+ op->o_log_prefix, candidate,
+ META_BACK_ONERR_STOP( mi ) ? "" : " (ignored)" );
+ candidates[ candidate ].sr_err = LDAP_OTHER;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ return META_SEARCH_ERR;
+ }
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ return META_SEARCH_NOT_CANDIDATE;
+ }
+
+ Debug( LDAP_DEBUG_TRACE, "%s >>> meta_back_search_start[%d]\n", op->o_log_prefix, candidate, 0 );
+
+ /*
+ * modifies the base according to the scope, if required
+ */
+ if ( mt->mt_nsuffix.bv_len > op->o_req_ndn.bv_len ) {
+ switch ( op->ors_scope ) {
+ case LDAP_SCOPE_SUBTREE:
+ /*
+ * make the target suffix the new base
+ * FIXME: this is very forgiving, because
+ * "illegal" searchBases may be turned
+ * into the suffix of the target; however,
+ * the requested searchBase already passed
+ * thru the candidate analyzer...
+ */
+ if ( dnIsSuffix( &mt->mt_nsuffix, &op->o_req_ndn ) ) {
+ realbase = mt->mt_nsuffix;
+ if ( mt->mt_scope == LDAP_SCOPE_SUBORDINATE ) {
+ realscope = LDAP_SCOPE_SUBORDINATE;
+ }
+
+ } else {
+ /*
+ * this target is no longer candidate
+ */
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto doreturn;
+ }
+ break;
+
+ case LDAP_SCOPE_SUBORDINATE:
+ case LDAP_SCOPE_ONELEVEL:
+ {
+ struct berval rdn = mt->mt_nsuffix;
+ rdn.bv_len -= op->o_req_ndn.bv_len + STRLENOF( "," );
+ if ( dnIsOneLevelRDN( &rdn )
+ && dnIsSuffix( &mt->mt_nsuffix, &op->o_req_ndn ) )
+ {
+ /*
+ * if there is exactly one level,
+ * make the target suffix the new
+ * base, and make scope "base"
+ */
+ realbase = mt->mt_nsuffix;
+ if ( op->ors_scope == LDAP_SCOPE_SUBORDINATE ) {
+ if ( mt->mt_scope == LDAP_SCOPE_SUBORDINATE ) {
+ realscope = LDAP_SCOPE_SUBORDINATE;
+ } else {
+ realscope = LDAP_SCOPE_SUBTREE;
+ }
+ } else {
+ realscope = LDAP_SCOPE_BASE;
+ }
+ break;
+ } /* else continue with the next case */
+ }
+
+ case LDAP_SCOPE_BASE:
+ /*
+ * this target is no longer candidate
+ */
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto doreturn;
+ }
+ }
+
+ /* initiate dobind */
+ retcode = meta_search_dobind_init( op, rs, mcp, candidate, candidates );
+
+ Debug( LDAP_DEBUG_TRACE, "%s <<< meta_search_dobind_init[%d]=%d\n", op->o_log_prefix, candidate, retcode );
+
+ if ( retcode != META_SEARCH_CANDIDATE ) {
+ goto doreturn;
+ }
+
+ /*
+ * Rewrite the search base, if required
+ */
+ dc->target = mt;
+ dc->ctx = "searchBase";
+ switch ( ldap_back_dn_massage( dc, &realbase, &mbase ) ) {
+ case LDAP_SUCCESS:
+ break;
+
+ case LDAP_UNWILLING_TO_PERFORM:
+ rs->sr_err = LDAP_UNWILLING_TO_PERFORM;
+ rs->sr_text = "Operation not allowed";
+ send_ldap_result( op, rs );
+ retcode = META_SEARCH_ERR;
+ goto doreturn;
+
+ default:
+
+ /*
+ * this target is no longer candidate
+ */
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto doreturn;
+ }
+
+ /*
+ * Maps filter
+ */
+ rc = ldap_back_filter_map_rewrite( dc, op->ors_filter,
+ &mfilter, BACKLDAP_MAP );
+ switch ( rc ) {
+ case LDAP_SUCCESS:
+ break;
+
+ case LDAP_COMPARE_FALSE:
+ default:
+ /*
+ * this target is no longer candidate
+ */
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto done;
+ }
+
+ /*
+ * Maps required attributes
+ */
+ rc = ldap_back_map_attrs( &mt->mt_rwmap.rwm_at,
+ op->ors_attrs, BACKLDAP_MAP, &mapped_attrs );
+ if ( rc != LDAP_SUCCESS ) {
+ /*
+ * this target is no longer candidate
+ */
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto done;
+ }
+
+ /* should we check return values? */
+ if ( op->ors_deref != -1 ) {
+ assert( msc->msc_ld != NULL );
+ (void)ldap_set_option( msc->msc_ld, LDAP_OPT_DEREF,
+ ( void * )&op->ors_deref );
+ }
+
+ if ( op->ors_tlimit != SLAP_NO_LIMIT ) {
+ tv.tv_sec = op->ors_tlimit > 0 ? op->ors_tlimit : 1;
+ tv.tv_usec = 0;
+ tvp = &tv;
+ }
+
+retry:;
+ ctrls = op->o_ctrls;
+ if ( ldap_back_proxy_authz_ctrl( &msc->msc_bound_ndn,
+ mt->mt_version, &mt->mt_idassert, op, rs, &ctrls )
+ != LDAP_SUCCESS )
+ {
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ goto done;
+ }
+
+ /*
+ * Starts the search
+ */
+ assert( msc->msc_ld != NULL );
+ rc = ldap_search_ext( msc->msc_ld,
+ mbase.bv_val, realscope, mfilter.bv_val,
+ mapped_attrs, op->ors_attrsonly,
+ ctrls, NULL, tvp, op->ors_slimit,
+ &candidates[ candidate ].sr_msgid );
+ switch ( rc ) {
+ case LDAP_SUCCESS:
+ retcode = META_SEARCH_CANDIDATE;
+ break;
+
+ case LDAP_SERVER_DOWN:
+ if ( nretries && meta_back_retry( op, rs, mcp, candidate, LDAP_BACK_DONTSEND ) ) {
+ nretries = 0;
+ /* if the identity changed, there might be need to re-authz */
+ (void)ldap_back_proxy_authz_ctrl_free( op, &ctrls );
+ goto retry;
+ }
+
+ if ( *mcp == NULL ) {
+ retcode = META_SEARCH_ERR;
+ break;
+ }
+ /* fall thru */
+
+ default:
+ candidates[ candidate ].sr_msgid = META_MSGID_IGNORE;
+ retcode = META_SEARCH_NOT_CANDIDATE;
+ }
+
+done:;
+ (void)ldap_back_proxy_authz_ctrl_free( op, &ctrls );
+
+ if ( mapped_attrs ) {
+ free( mapped_attrs );
+ }
+ if ( mfilter.bv_val != op->ors_filterstr.bv_val ) {
+ free( mfilter.bv_val );
+ }
+ if ( mbase.bv_val != realbase.bv_val ) {
+ free( mbase.bv_val );
+ }
+
+doreturn:;
+ Debug( LDAP_DEBUG_TRACE, "%s <<< meta_back_search_start[%d]=%d\n", op->o_log_prefix, candidate, retcode );
+
+ return retcode;
+}
+
+int
+meta_back_search( Operation *op, SlapReply *rs )
+{
+ metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
+ metaconn_t *mc;
+ struct timeval save_tv = { 0, 0 },
+ tv;
+ time_t stoptime = (time_t)(-1),
+ lastres_time = slap_get_time(),
+ timeout = 0;
+ int rc = 0, sres = LDAP_SUCCESS;
+ char *matched = NULL;
+ int last = 0, ncandidates = 0,
+ initial_candidates = 0, candidate_match = 0,
+ needbind = 0;
+ ldap_back_send_t sendok = LDAP_BACK_SENDERR;
+ long i;
+ dncookie dc;
+ int is_ok = 0;
+ void *savepriv;
+ SlapReply *candidates = meta_back_candidates_get( op );
+
+ /*
+ * controls are set in ldap_back_dobind()
+ *
+ * FIXME: in case of values return filter, we might want
+ * to map attrs and maybe rewrite value
+ */
+getconn:;
+ mc = meta_back_getconn( op, rs, NULL, sendok );
+ if ( !mc ) {
+ return rs->sr_err;
+ }
+
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+
+ /*
+ * Inits searches
+ */
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ /* reset sr_msgid; it is used in most loops
+ * to check if that target is still to be considered */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+
+ /* a target is marked as candidate by meta_back_getconn();
+ * if for any reason (an error, it's over or so) it is
+ * no longer active, sr_msgid is set to META_MSGID_IGNORE
+ * but it remains candidate, which means it has been active
+ * at some point during the operation. This allows to
+ * use its response code and more to compute the final
+ * response */
+ if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
+ continue;
+ }
+
+ candidates[ i ].sr_matched = NULL;
+ candidates[ i ].sr_text = NULL;
+ candidates[ i ].sr_ref = NULL;
+ candidates[ i ].sr_ctrls = NULL;
+
+ /* get largest timeout among candidates */
+ if ( mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ]
+ && mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ] > timeout )
+ {
+ timeout = mi->mi_targets[ i ]->mt_timeout[ SLAP_OP_SEARCH ];
+ }
+ }
+
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( !META_IS_CANDIDATE( &candidates[ i ] )
+ || candidates[ i ].sr_err != LDAP_SUCCESS )
+ {
+ continue;
+ }
+
+ switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
+ {
+ case META_SEARCH_NOT_CANDIDATE:
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ break;
+
+ case META_SEARCH_NEED_BIND:
+ ++needbind;
+ /* fallthru */
+
+ case META_SEARCH_CANDIDATE:
+ case META_SEARCH_BINDING:
+ candidates[ i ].sr_type = REP_INTERMEDIATE;
+ ++ncandidates;
+ break;
+
+ case META_SEARCH_ERR:
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ rc = -1;
+ goto finish;
+
+ default:
+ assert( 0 );
+ break;
+ }
+ }
+
+ if ( ncandidates > 0 && needbind == ncandidates ) {
+ /*
+ * give up the second time...
+ *
+ * NOTE: this should not occur the second time, since a fresh
+ * connection has ben created; however, targets may also
+ * need bind because the bind timed out or so.
+ */
+ if ( sendok & LDAP_BACK_BINDING ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s meta_back_search: unable to initialize conn\n",
+ op->o_log_prefix, 0, 0 );
+ rs->sr_err = LDAP_UNAVAILABLE;
+ rs->sr_text = "unable to initialize connection to remote targets";
+ send_ldap_result( op, rs );
+ rc = -1;
+ goto finish;
+ }
+
+ /* FIXME: better create a separate connection? */
+ sendok |= LDAP_BACK_BINDING;
+
+#ifdef DEBUG_205
+ Debug( LDAP_DEBUG_ANY, "*** %s drop mc=%p create new connection\n",
+ op->o_log_prefix, (void *)mc, 0 );
+#endif /* DEBUG_205 */
+
+ meta_back_release_conn( mi, mc );
+ mc = NULL;
+
+ needbind = 0;
+ ncandidates = 0;
+
+ goto getconn;
+ }
+
+ initial_candidates = ncandidates;
+
+ if ( StatslogTest( LDAP_DEBUG_TRACE ) ) {
+ char cnd[ SLAP_TEXT_BUFLEN ];
+ int c;
+
+ for ( c = 0; c < mi->mi_ntargets; c++ ) {
+ if ( META_IS_CANDIDATE( &candidates[ c ] ) ) {
+ cnd[ c ] = '*';
+ } else {
+ cnd[ c ] = ' ';
+ }
+ }
+ cnd[ c ] = '\0';
+
+ Debug( LDAP_DEBUG_TRACE, "%s meta_back_search: ncandidates=%d "
+ "cnd=\"%s\"\n", op->o_log_prefix, ncandidates, cnd );
+ }
+
+ if ( initial_candidates == 0 ) {
+ /* NOTE: here we are not sending any matchedDN;
+ * this is intended, because if the back-meta
+ * is serving this search request, but no valid
+ * candidate could be looked up, it means that
+ * there is a hole in the mapping of the targets
+ * and thus no knowledge of any remote superior
+ * is available */
+ Debug( LDAP_DEBUG_ANY, "%s meta_back_search: "
+ "base=\"%s\" scope=%d: "
+ "no candidate could be selected\n",
+ op->o_log_prefix, op->o_req_dn.bv_val,
+ op->ors_scope );
+
+ /* FIXME: we're sending the first error we encounter;
+ * maybe we should pick the worst... */
+ rc = LDAP_NO_SUCH_OBJECT;
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( META_IS_CANDIDATE( &candidates[ i ] )
+ && candidates[ i ].sr_err != LDAP_SUCCESS )
+ {
+ rc = candidates[ i ].sr_err;
+ break;
+ }
+ }
+
+ send_ldap_error( op, rs, rc, NULL );
+
+ goto finish;
+ }
+
+ /* We pull apart the ber result, stuff it into a slapd entry, and
+ * let send_search_entry stuff it back into ber format. Slow & ugly,
+ * but this is necessary for version matching, and for ACL processing.
+ */
+
+ if ( op->ors_tlimit != SLAP_NO_LIMIT ) {
+ stoptime = op->o_time + op->ors_tlimit;
+ }
+
+ /*
+ * In case there are no candidates, no cycle takes place...
+ *
+ * FIXME: we might use a queue, to better balance the load
+ * among the candidates
+ */
+ for ( rc = 0; ncandidates > 0; ) {
+ int gotit = 0,
+ doabandon = 0,
+ alreadybound = ncandidates;
+
+ /* check timeout */
+ if ( timeout && lastres_time > 0
+ && ( slap_get_time() - lastres_time ) > timeout )
+ {
+ doabandon = 1;
+ rs->sr_text = "Operation timed out";
+ rc = rs->sr_err = op->o_protocol >= LDAP_VERSION3 ?
+ LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER;
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+
+ /* check time limit */
+ if ( op->ors_tlimit != SLAP_NO_LIMIT
+ && slap_get_time() > stoptime )
+ {
+ doabandon = 1;
+ rc = rs->sr_err = LDAP_TIMELIMIT_EXCEEDED;
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ meta_search_candidate_t retcode = META_SEARCH_UNDEFINED;
+ metasingleconn_t *msc = &mc->mc_conns[ i ];
+ LDAPMessage *res = NULL, *msg;
+
+ /* if msgid is invalid, don't ldap_result() */
+ if ( candidates[ i ].sr_msgid == META_MSGID_IGNORE ) {
+ continue;
+ }
+
+ /* if target still needs bind, retry */
+ if ( candidates[ i ].sr_msgid == META_MSGID_NEED_BIND ) {
+ /* initiate dobind */
+ retcode = meta_search_dobind_init( op, rs, &mc, i, candidates );
+
+ Debug( LDAP_DEBUG_TRACE, "%s <<< meta_search_dobind_init[%ld]=%d\n",
+ op->o_log_prefix, i, retcode );
+
+ switch ( retcode ) {
+ case META_SEARCH_NEED_BIND:
+ alreadybound--;
+ /* fallthru */
+
+ case META_SEARCH_BINDING:
+ break;
+
+ case META_SEARCH_ERR:
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+ /* fallthru */
+
+ case META_SEARCH_NOT_CANDIDATE:
+ /*
+ * When no candidates are left,
+ * the outer cycle finishes
+ */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+ break;
+
+ case META_SEARCH_CANDIDATE:
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
+ {
+ case META_SEARCH_CANDIDATE:
+ assert( candidates[ i ].sr_msgid >= 0 );
+ break;
+
+ case META_SEARCH_ERR:
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+ /* fallthru */
+
+ case META_SEARCH_NOT_CANDIDATE:
+ /* means that meta_back_search_start()
+ * failed but onerr == continue */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+ break;
+
+ default:
+ /* impossible */
+ assert( 0 );
+ break;
+ }
+ break;
+
+ default:
+ /* impossible */
+ assert( 0 );
+ break;
+ }
+ continue;
+ }
+
+ /* check for abandon */
+ if ( op->o_abandon || LDAP_BACK_CONN_ABANDON( mc ) ) {
+ break;
+ }
+
+#ifdef DEBUG_205
+ if ( msc->msc_ld == NULL ) {
+ char buf[ SLAP_TEXT_BUFLEN ];
+
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ snprintf( buf, sizeof( buf ),
+ "%s meta_back_search[%ld] mc=%p msgid=%d%s%s%s\n",
+ op->o_log_prefix, (long)i, (void *)mc,
+ candidates[ i ].sr_msgid,
+ META_IS_BINDING( &candidates[ i ] ) ? " binding" : "",
+ LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] ) ? " connbinding" : "",
+ META_BACK_CONN_CREATING( &mc->mc_conns[ i ] ) ? " conncreating" : "" );
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+
+ Debug( LDAP_DEBUG_ANY, "!!! %s\n", buf, 0, 0 );
+ }
+#endif /* DEBUG_205 */
+
+ /*
+ * FIXME: handle time limit as well?
+ * Note that target servers are likely
+ * to handle it, so at some time we'll
+ * get a LDAP_TIMELIMIT_EXCEEDED from
+ * one of them ...
+ */
+ tv = save_tv;
+ rc = ldap_result( msc->msc_ld, candidates[ i ].sr_msgid,
+ LDAP_MSG_RECEIVED, &tv, &res );
+ switch ( rc ) {
+ case 0:
+ /* FIXME: res should not need to be freed */
+ assert( res == NULL );
+ continue;
+
+ case -1:
+really_bad:;
+ /* something REALLY bad happened! */
+ if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
+ candidates[ i ].sr_type = REP_RESULT;
+
+ if ( meta_back_retry( op, rs, &mc, i, LDAP_BACK_DONTSEND ) ) {
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ switch ( meta_back_search_start( op, rs, &dc, &mc, i, candidates ) )
+ {
+ /* means that failed but onerr == continue */
+ case META_SEARCH_NOT_CANDIDATE:
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+
+ assert( ncandidates > 0 );
+ --ncandidates;
+
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+ /* fall thru */
+
+ case META_SEARCH_CANDIDATE:
+ /* get back into business... */
+ continue;
+
+ case META_SEARCH_BINDING:
+ case META_SEARCH_NEED_BIND:
+ case META_SEARCH_UNDEFINED:
+ assert( 0 );
+
+ default:
+ /* unrecoverable error */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ rc = rs->sr_err = LDAP_OTHER;
+ goto finish;
+ }
+ }
+
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ goto finish;
+ }
+ }
+
+ /*
+ * When no candidates are left,
+ * the outer cycle finishes
+ */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+ rs->sr_err = candidates[ i ].sr_err;
+ continue;
+
+ default:
+ lastres_time = slap_get_time();
+
+ /* only touch when activity actually took place... */
+ if ( mi->mi_idle_timeout != 0 && msc->msc_time < lastres_time ) {
+ msc->msc_time = lastres_time;
+ }
+ break;
+ }
+
+ for ( msg = ldap_first_message( msc->msc_ld, res );
+ msg != NULL;
+ msg = ldap_next_message( msc->msc_ld, msg ) )
+ {
+ rc = ldap_msgtype( msg );
+ if ( rc == LDAP_RES_SEARCH_ENTRY ) {
+ LDAPMessage *e;
+
+ if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
+ /* don't retry any more... */
+ candidates[ i ].sr_type = REP_RESULT;
+ }
+
+ is_ok++;
+
+ e = ldap_first_entry( msc->msc_ld, msg );
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ rs->sr_err = meta_send_entry( op, rs, mc, i, e );
+
+ switch ( rs->sr_err ) {
+ case LDAP_SIZELIMIT_EXCEEDED:
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ rs->sr_err = LDAP_SUCCESS;
+ ldap_msgfree( res );
+ res = NULL;
+ goto finish;
+
+ case LDAP_UNAVAILABLE:
+ rs->sr_err = LDAP_OTHER;
+ ldap_msgfree( res );
+ res = NULL;
+ goto finish;
+ }
+ op->o_private = savepriv;
+
+ /* don't wait any longer... */
+ gotit = 1;
+ save_tv.tv_sec = 0;
+ save_tv.tv_usec = 0;
+
+ } else if ( rc == LDAP_RES_SEARCH_REFERENCE ) {
+ char **references = NULL;
+ int cnt;
+
+ if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
+ /* don't retry any more... */
+ candidates[ i ].sr_type = REP_RESULT;
+ }
+
+ is_ok++;
+
+ rc = ldap_parse_reference( msc->msc_ld, msg,
+ &references, &rs->sr_ctrls, 0 );
+
+ if ( rc != LDAP_SUCCESS ) {
+ continue;
+ }
+
+ if ( references == NULL ) {
+ continue;
+ }
+
+#ifdef ENABLE_REWRITE
+ dc.ctx = "referralDN";
+#else /* ! ENABLE_REWRITE */
+ dc.tofrom = 0;
+ dc.normalized = 0;
+#endif /* ! ENABLE_REWRITE */
+
+ /* FIXME: merge all and return at the end */
+
+ for ( cnt = 0; references[ cnt ]; cnt++ )
+ ;
+
+ rs->sr_ref = ch_calloc( sizeof( struct berval ), cnt + 1 );
+
+ for ( cnt = 0; references[ cnt ]; cnt++ ) {
+ ber_str2bv( references[ cnt ], 0, 1, &rs->sr_ref[ cnt ] );
+ }
+ BER_BVZERO( &rs->sr_ref[ cnt ] );
+
+ ( void )ldap_back_referral_result_rewrite( &dc, rs->sr_ref );
+
+ if ( rs->sr_ref != NULL && !BER_BVISNULL( &rs->sr_ref[ 0 ] ) ) {
+ /* ignore return value by now */
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ ( void )send_search_reference( op, rs );
+ op->o_private = savepriv;
+
+ ber_bvarray_free( rs->sr_ref );
+ rs->sr_ref = NULL;
+ }
+
+ /* cleanup */
+ if ( references ) {
+ ber_memvfree( (void **)references );
+ }
+
+ if ( rs->sr_ctrls ) {
+ ldap_controls_free( rs->sr_ctrls );
+ rs->sr_ctrls = NULL;
+ }
+
+ } else if ( rc == LDAP_RES_SEARCH_RESULT ) {
+ char buf[ SLAP_TEXT_BUFLEN ];
+ char **references = NULL;
+
+ if ( candidates[ i ].sr_type == REP_INTERMEDIATE ) {
+ /* don't retry any more... */
+ candidates[ i ].sr_type = REP_RESULT;
+ }
+
+ /* NOTE: ignores response controls
+ * (and intermediate response controls
+ * as well, except for those with search
+ * references); this may not be correct,
+ * but if they're not ignored then
+ * back-meta would need to merge them
+ * consistently (think of pagedResults...)
+ */
+ /* FIXME: response controls? */
+ rs->sr_err = ldap_parse_result( msc->msc_ld,
+ msg,
+ &candidates[ i ].sr_err,
+ (char **)&candidates[ i ].sr_matched,
+ NULL /* (char **)&candidates[ i ].sr_text */ ,
+ &references,
+ NULL /* &candidates[ i ].sr_ctrls (unused) */ ,
+ 0 );
+ if ( rs->sr_err != LDAP_SUCCESS ) {
+ sres = slap_map_api2result( &candidates[ i ] );
+ candidates[ i ].sr_type = REP_RESULT;
+ ldap_msgfree( res );
+ res = NULL;
+ goto really_bad;
+ }
+
+ rs->sr_err = candidates[ i ].sr_err;
+
+ /* massage matchedDN if need be */
+ if ( candidates[ i ].sr_matched != NULL ) {
+ struct berval match, mmatch;
+
+ ber_str2bv( candidates[ i ].sr_matched,
+ 0, 0, &match );
+ candidates[ i ].sr_matched = NULL;
+
+ dc.ctx = "matchedDN";
+ dc.target = mi->mi_targets[ i ];
+ if ( !ldap_back_dn_massage( &dc, &match, &mmatch ) ) {
+ if ( mmatch.bv_val == match.bv_val ) {
+ candidates[ i ].sr_matched
+ = ch_strdup( mmatch.bv_val );
+
+ } else {
+ candidates[ i ].sr_matched = mmatch.bv_val;
+ }
+
+ candidate_match++;
+ }
+ ldap_memfree( match.bv_val );
+ }
+
+ /* add references to array */
+ /* RFC 4511: referrals can only appear
+ * if result code is LDAP_REFERRAL */
+ if ( references != NULL
+ && references[ 0 ] != NULL
+ && references[ 0 ][ 0 ] != '\0' )
+ {
+ if ( rs->sr_err != LDAP_REFERRAL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s meta_back_search[%ld]: "
+ "got referrals with err=%d\n",
+ op->o_log_prefix,
+ i, rs->sr_err );
+
+ } else {
+ BerVarray sr_ref;
+ int cnt;
+
+ for ( cnt = 0; references[ cnt ]; cnt++ )
+ ;
+
+ sr_ref = ch_calloc( sizeof( struct berval ), cnt + 1 );
+
+ for ( cnt = 0; references[ cnt ]; cnt++ ) {
+ ber_str2bv( references[ cnt ], 0, 1, &sr_ref[ cnt ] );
+ }
+ BER_BVZERO( &sr_ref[ cnt ] );
+
+ ( void )ldap_back_referral_result_rewrite( &dc, sr_ref );
+
+ if ( rs->sr_v2ref == NULL ) {
+ rs->sr_v2ref = sr_ref;
+
+ } else {
+ for ( cnt = 0; !BER_BVISNULL( &sr_ref[ cnt ] ); cnt++ ) {
+ ber_bvarray_add( &rs->sr_v2ref, &sr_ref[ cnt ] );
+ }
+ ber_memfree( sr_ref );
+ }
+ }
+
+ } else if ( rs->sr_err == LDAP_REFERRAL ) {
+ Debug( LDAP_DEBUG_ANY,
+ "%s meta_back_search[%ld]: "
+ "got err=%d with null "
+ "or empty referrals\n",
+ op->o_log_prefix,
+ i, rs->sr_err );
+
+ rs->sr_err = LDAP_NO_SUCH_OBJECT;
+ }
+
+ /* cleanup */
+ ber_memvfree( (void **)references );
+
+ sres = slap_map_api2result( rs );
+
+ if ( StatslogTest( LDAP_DEBUG_TRACE | LDAP_DEBUG_ANY ) ) {
+ snprintf( buf, sizeof( buf ),
+ "%s meta_back_search[%ld] "
+ "match=\"%s\" err=%ld",
+ op->o_log_prefix, i,
+ candidates[ i ].sr_matched ? candidates[ i ].sr_matched : "",
+ (long) candidates[ i ].sr_err );
+ if ( candidates[ i ].sr_err == LDAP_SUCCESS ) {
+ Debug( LDAP_DEBUG_TRACE, "%s.\n", buf, 0, 0 );
+
+ } else {
+ Debug( LDAP_DEBUG_ANY, "%s (%s).\n",
+ buf, ldap_err2string( candidates[ i ].sr_err ), 0 );
+ }
+ }
+
+ switch ( sres ) {
+ case LDAP_NO_SUCH_OBJECT:
+ /* is_ok is touched any time a valid
+ * (even intermediate) result is
+ * returned; as a consequence, if
+ * a candidate returns noSuchObject
+ * it is ignored and the candidate
+ * is simply demoted. */
+ if ( is_ok ) {
+ sres = LDAP_SUCCESS;
+ }
+ break;
+
+ case LDAP_SUCCESS:
+ case LDAP_REFERRAL:
+ is_ok++;
+ break;
+
+ case LDAP_SIZELIMIT_EXCEEDED:
+ /* if a target returned sizelimitExceeded
+ * and the entry count is equal to the
+ * proxy's limit, the target would have
+ * returned more, and the error must be
+ * propagated to the client; otherwise,
+ * the target enforced a limit lower
+ * than what requested by the proxy;
+ * ignore it */
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( rs->sr_nentries == op->ors_slimit
+ || META_BACK_ONERR_STOP( mi ) )
+ {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ ldap_msgfree( res );
+ res = NULL;
+ goto finish;
+ }
+ break;
+
+ default:
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ ldap_msgfree( res );
+ res = NULL;
+ goto finish;
+ }
+ break;
+ }
+
+ last = i;
+ rc = 0;
+
+ /*
+ * When no candidates are left,
+ * the outer cycle finishes
+ */
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+
+ } else if ( rc == LDAP_RES_BIND ) {
+ meta_search_candidate_t retcode;
+
+ retcode = meta_search_dobind_result( op, rs, &mc, i, candidates, msg );
+ if ( retcode == META_SEARCH_CANDIDATE ) {
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ retcode = meta_back_search_start( op, rs, &dc, &mc, i, candidates );
+ }
+
+ switch ( retcode ) {
+ case META_SEARCH_CANDIDATE:
+ break;
+
+ /* means that failed but onerr == continue */
+ case META_SEARCH_NOT_CANDIDATE:
+ case META_SEARCH_ERR:
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+
+ candidates[ i ].sr_err = rs->sr_err;
+ if ( META_BACK_ONERR_STOP( mi ) ) {
+ savepriv = op->o_private;
+ op->o_private = (void *)i;
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ ldap_msgfree( res );
+ res = NULL;
+ goto finish;
+ }
+ goto free_message;
+
+ default:
+ assert( 0 );
+ break;
+ }
+
+ } else {
+ assert( 0 );
+ ldap_msgfree( res );
+ res = NULL;
+ goto really_bad;
+ }
+ }
-#include "portable.h"
+free_message:;
+ ldap_msgfree( res );
+ res = NULL;
+ }
-#include <stdio.h>
+ /* check for abandon */
+ if ( op->o_abandon || LDAP_BACK_CONN_ABANDON( mc ) ) {
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( candidates[ i ].sr_msgid >= 0 ) {
+ if ( META_IS_BINDING( &candidates[ i ] ) ) {
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ if ( LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] ) ) {
+ /* if still binding, destroy */
-#include <ac/socket.h>
-#include <ac/string.h>
-#include <ac/time.h>
+#ifdef DEBUG_205
+ char buf[ SLAP_TEXT_BUFLEN ];
-#include "slap.h"
-#include "../back-ldap/back-ldap.h"
-#include "back-meta.h"
-#include "ldap_pvt.h"
-#include "../../../libraries/libldap/ldap-int.h"
+ snprintf( buf, sizeof( buf), "%s meta_back_search(abandon) "
+ "ldap_unbind_ext[%ld] mc=%p ld=%p",
+ op->o_log_prefix, i, (void *)mc,
+ (void *)mc->mc_conns[i].msc_ld );
-static void
-meta_send_entry(
- Backend *be,
- Operation *op,
- struct metaconn *lc,
- int i,
- LDAPMessage *e,
- AttributeName *attrs,
- int attrsonly
-);
+ Debug( LDAP_DEBUG_ANY, "### %s\n", buf, 0, 0 );
+#endif /* DEBUG_205 */
-static int
-is_one_level_rdn(
- const char *rdn,
- int from
-);
+ meta_clear_one_candidate( op, mc, i );
+ }
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ META_BINDING_CLEAR( &candidates[ i ] );
+
+ } else {
+ (void)meta_back_cancel( mc, op, rs,
+ candidates[ i ].sr_msgid, i,
+ LDAP_BACK_DONTSEND );
+ }
-int
-meta_back_search(
- Backend *be,
- Connection *conn,
- Operation *op,
- struct berval *base,
- struct berval *nbase,
- int scope,
- int deref,
- int slimit,
- int tlimit,
- Filter *filter,
- struct berval *filterstr,
- AttributeName *attrs,
- int attrsonly
-)
-{
- struct metainfo *li = ( struct metainfo * )be->be_private;
- struct metaconn *lc;
- struct metasingleconn **lsc;
- struct timeval tv;
- LDAPMessage *res, *e;
- int count, rc = 0, *msgid, sres = LDAP_NO_SUCH_OBJECT;
- char *match = NULL, *err = NULL;
- char *mbase = NULL, *mmatch = NULL,
- *mapped_filter = NULL, **mapped_attrs = NULL;
- struct berval mfilter;
-
- int i, last = 0, candidates = 0, op_type;
- struct slap_limits_set *limit = NULL;
- int isroot = 0;
-
- if ( scope == LDAP_SCOPE_BASE ) {
- op_type = META_OP_REQUIRE_SINGLE;
- } else {
- op_type = META_OP_ALLOW_MULTIPLE;
- }
-
- lc = meta_back_getconn( li, conn, op, op_type, nbase, NULL );
- if ( !lc || !meta_back_dobind( lc, op ) ) {
- return -1;
- }
+ candidates[ i ].sr_msgid = META_MSGID_IGNORE;
+ assert( ncandidates > 0 );
+ --ncandidates;
+ }
+ }
- /*
- * Array of message id of each target
- */
- msgid = ch_calloc( sizeof( int ), li->ntargets );
- if ( msgid == NULL ) {
- send_search_result( conn, op, LDAP_OPERATIONS_ERROR,
- NULL, NULL, NULL, NULL, 0 );
- return -1;
- }
-
- /* if not root, get appropriate limits */
- if ( be_isroot( be, &op->o_ndn ) ) {
- isroot = 1;
- } else {
- ( void ) get_limits( be, &op->o_ndn, &limit );
- }
+ if ( op->o_abandon ) {
+ rc = SLAPD_ABANDON;
+ }
- /* if no time limit requested, rely on remote server limits */
- /* if requested limit higher than hard limit, abort */
- if ( !isroot && tlimit > limit->lms_t_hard ) {
- /* no hard limit means use soft instead */
- if ( limit->lms_t_hard == 0 ) {
- tlimit = limit->lms_t_soft;
-
- /* positive hard limit means abort */
- } else if ( limit->lms_t_hard > 0 ) {
- send_search_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL, 0 );
- rc = 0;
- goto finish;
+ /* let send_ldap_result play cleanup handlers (ITS#4645) */
+ break;
+ }
+
+ /* if no entry was found during this loop,
+ * set a minimal timeout */
+ if ( ncandidates > 0 && gotit == 0 ) {
+ if ( save_tv.tv_sec == 0 && save_tv.tv_usec == 0 ) {
+ save_tv.tv_usec = LDAP_BACK_RESULT_UTIMEOUT/initial_candidates;
+
+ /* arbitrarily limit to something between 1 and 2 minutes */
+ } else if ( ( stoptime == -1 && save_tv.tv_sec < 60 )
+ || save_tv.tv_sec < ( stoptime - slap_get_time() ) / ( 2 * ncandidates ) )
+ {
+ /* double the timeout */
+ lutil_timermul( &save_tv, 2, &save_tv );
+ }
+
+ if ( alreadybound == 0 ) {
+ tv = save_tv;
+ (void)select( 0, NULL, NULL, NULL, &tv );
+
+ } else {
+ ldap_pvt_thread_yield();
+ }
}
-
- /* negative hard limit means no limit */
}
-
- /* if no size limit requested, rely on remote server limits */
- /* if requested limit higher than hard limit, abort */
- if ( !isroot && slimit > limit->lms_s_hard ) {
- /* no hard limit means use soft instead */
- if ( limit->lms_s_hard == 0 ) {
- slimit = limit->lms_s_soft;
-
- /* positive hard limit means abort */
- } else if ( limit->lms_s_hard > 0 ) {
- send_search_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL, 0 );
- rc = 0;
- goto finish;
+
+ if ( rc == -1 ) {
+ /*
+ * FIXME: need a better strategy to handle errors
+ */
+ if ( mc ) {
+ rc = meta_back_op_result( mc, op, rs, META_TARGET_NONE,
+ -1, stoptime != -1 ? (stoptime - slap_get_time()) : 0,
+ LDAP_BACK_SENDERR );
+ } else {
+ rc = rs->sr_err;
}
-
- /* negative hard limit means no limit */
+ goto finish;
}
/*
- * Inits searches
+ * Rewrite the matched portion of the search base, if required
+ *
+ * FIXME: only the last one gets caught!
*/
- for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; ++i, ++lsc ) {
- char *realbase = ( char * )base->bv_val;
- int realscope = scope;
- int suffixlen;
-
- if ( lsc[ 0 ]->candidate != META_CANDIDATE ) {
- continue;
- }
+ savepriv = op->o_private;
+ op->o_private = (void *)(long)mi->mi_ntargets;
+ if ( candidate_match > 0 ) {
+ struct berval pmatched = BER_BVNULL;
- if ( deref != -1 ) {
- ldap_set_option( lsc[ 0 ]->ld, LDAP_OPT_DEREF,
- ( void * )&deref);
- }
- if ( tlimit != -1 ) {
- ldap_set_option( lsc[ 0 ]->ld, LDAP_OPT_TIMELIMIT,
- ( void * )&tlimit);
- }
- if ( slimit != -1 ) {
- ldap_set_option( lsc[ 0 ]->ld, LDAP_OPT_SIZELIMIT,
- ( void * )&slimit);
- }
+ /* we use the first one */
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( META_IS_CANDIDATE( &candidates[ i ] )
+ && candidates[ i ].sr_matched != NULL )
+ {
+ struct berval bv, pbv;
+ int rc;
- /*
- * modifies the base according to the scope, if required
- */
- suffixlen = li->targets[ i ]->suffix.bv_len;
- if ( suffixlen > nbase->bv_len ) {
- switch ( scope ) {
- case LDAP_SCOPE_SUBTREE:
- /*
- * make the target suffix the new base
- * FIXME: this is very forgiving, because
- * illegal bases may be turned into
- * the suffix of the target.
- */
- if ( dnIsSuffix( &li->targets[ i ]->suffix,
- nbase ) ) {
- realbase = li->targets[ i ]->suffix.bv_val;
- } else {
- /*
- * this target is no longer candidate
- */
- lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
+ /* if we got success, and this target
+ * returned noSuchObject, and its suffix
+ * is a superior of the searchBase,
+ * ignore the matchedDN */
+ if ( sres == LDAP_SUCCESS
+ && candidates[ i ].sr_err == LDAP_NO_SUCH_OBJECT
+ && op->o_req_ndn.bv_len > mi->mi_targets[ i ]->mt_nsuffix.bv_len )
+ {
+ free( (char *)candidates[ i ].sr_matched );
+ candidates[ i ].sr_matched = NULL;
continue;
}
- break;
-
- case LDAP_SCOPE_ONELEVEL:
- if ( is_one_level_rdn( li->targets[ i ]->suffix.bv_val,
- suffixlen - nbase->bv_len - 1 )
- && dnIsSuffix( &li->targets[ i ]->suffix, nbase ) ) {
- /*
- * if there is exactly one level,
- * make the target suffix the new
- * base, and make scope "base"
- */
- realbase = li->targets[ i ]->suffix.bv_val;
- realscope = LDAP_SCOPE_BASE;
- break;
- } /* else continue with the next case */
- case LDAP_SCOPE_BASE:
- /*
- * this target is no longer candidate
- */
- lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
- continue;
- }
+ ber_str2bv( candidates[ i ].sr_matched, 0, 0, &bv );
+ rc = dnPretty( NULL, &bv, &pbv, op->o_tmpmemctx );
- }
+ if ( rc == LDAP_SUCCESS ) {
- /*
- * Rewrite the search base, if required
- */
- switch ( rewrite_session( li->targets[ i ]->rwinfo,
- "searchBase",
- realbase, conn, &mbase ) ) {
- case REWRITE_REGEXEC_OK:
- if ( mbase == NULL ) {
- mbase = realbase;
- }
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
- "[rw] searchBase: \"%s\" -> \"%s\"\n",
- base->bv_val, mbase ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ARGS, "rw> searchBase: \"%s\" -> \"%s\"\n%s",
- base->bv_val, mbase, "" );
-#endif /* !NEW_LOGGING */
- break;
-
- case REWRITE_REGEXEC_UNWILLING:
- send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
- NULL, "Unwilling to perform",
- NULL, NULL );
- rc = -1;
- goto finish;
+ /* NOTE: if they all are superiors
+ * of the baseDN, the shorter is also
+ * superior of the longer... */
+ if ( pbv.bv_len > pmatched.bv_len ) {
+ if ( !BER_BVISNULL( &pmatched ) ) {
+ op->o_tmpfree( pmatched.bv_val, op->o_tmpmemctx );
+ }
+ pmatched = pbv;
+ op->o_private = (void *)i;
- case REWRITE_REGEXEC_ERR:
- send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
- NULL, "Operations error",
- NULL, NULL );
- rc = -1;
- goto finish;
- }
-
- /*
- * Rewrite the search filter, if required
- */
- switch ( rewrite_session( li->targets[ i ]->rwinfo,
- "searchFilter",
- filterstr->bv_val, conn, &mfilter.bv_val ) ) {
- case REWRITE_REGEXEC_OK:
- if ( mfilter.bv_val != NULL && mfilter.bv_val[ 0 ] != '\0') {
- mfilter.bv_len = strlen( mfilter.bv_val );
- } else {
- if ( mfilter.bv_val != NULL ) {
- free( mfilter.bv_val );
+ } else {
+ op->o_tmpfree( pbv.bv_val, op->o_tmpmemctx );
+ }
}
- mfilter = *filterstr;
- }
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
- "[rw] searchFilter: \"%s\" -> \"%s\"\n",
- filterstr->bv_val, mfilter.bv_val ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ARGS,
- "rw> searchFilter: \"%s\" -> \"%s\"\n%s",
- filterstr->bv_val, mfilter.bv_val, "" );
-#endif /* !NEW_LOGGING */
- break;
-
- case REWRITE_REGEXEC_UNWILLING:
- send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL );
- rc = -1;
- goto finish;
-
- case REWRITE_REGEXEC_ERR:
- send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
- NULL, NULL, NULL, NULL );
- rc = -1;
- goto finish;
- }
- /*
- * Maps attributes in filter
- */
- mapped_filter = ldap_back_map_filter( &li->targets[ i ]->at_map,
- &li->targets[ i ]->oc_map, &mfilter, 0 );
- if ( mapped_filter == NULL ) {
- mapped_filter = ( char * )mfilter.bv_val;
- }
-
- /*
- * Maps required attributes
- */
- mapped_attrs = ldap_back_map_attrs( &li->targets[ i ]->at_map,
- attrs, 0 );
- if ( mapped_attrs == NULL && attrs) {
- AttributeName *an;
- for ( count=0, an=attrs; an->an_name.bv_val; an++, count++ );
- mapped_attrs = ch_malloc( ( count + 1 ) * sizeof(char *));
- for ( count=0, an=attrs; an->an_name.bv_val; an++, count++ ) {
- mapped_attrs[ count ] = an->an_name.bv_val;
+ if ( candidates[ i ].sr_matched != NULL ) {
+ free( (char *)candidates[ i ].sr_matched );
+ candidates[ i ].sr_matched = NULL;
+ }
}
- mapped_attrs[ count ] = NULL;
- }
-
- /*
- * Starts the search
- */
- msgid[ i ] = ldap_search( lsc[ 0 ]->ld, mbase, realscope,
- mapped_filter, mapped_attrs, attrsonly);
- if ( msgid[ i ] == -1 ) {
- lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
- continue;
}
- if ( mapped_attrs ) {
- free( mapped_attrs );
- mapped_attrs = NULL;
- }
- if ( mapped_filter != mfilter.bv_val ) {
- free( mapped_filter );
- mapped_filter = NULL;
- }
- if ( mfilter.bv_val != filterstr->bv_val ) {
- free( mfilter.bv_val );
- mfilter.bv_val = NULL;
- mfilter.bv_len = 0;
- }
- if ( mbase != realbase ) {
- free( mbase );
- mbase = NULL;
+ if ( !BER_BVISNULL( &pmatched ) ) {
+ matched = pmatched.bv_val;
}
- ++candidates;
+ } else if ( sres == LDAP_NO_SUCH_OBJECT ) {
+ matched = op->o_bd->be_suffix[ 0 ].bv_val;
}
- /* We pull apart the ber result, stuff it into a slapd entry, and
- * let send_search_entry stuff it back into ber format. Slow & ugly,
- * but this is necessary for version matching, and for ACL processing.
- */
-
-
/*
- * In case there are no candidates, no cycle takes place...
+ * In case we returned at least one entry, we return LDAP_SUCCESS
+ * otherwise, the latter error code we got
*/
- for ( count = 0, rc = 0; candidates > 0; ) {
- int ab, gotit = 0;
- /* check for abandon */
- ldap_pvt_thread_mutex_lock( &op->o_abandonmutex );
- ab = op->o_abandon;
- ldap_pvt_thread_mutex_unlock( &op->o_abandonmutex );
+ if ( sres == LDAP_SUCCESS ) {
+ if ( rs->sr_v2ref ) {
+ sres = LDAP_REFERRAL;
+ }
- for ( i = 0, lsc = lc->conns; lsc[ 0 ] != NULL; lsc++, i++ ) {
- if ( lsc[ 0 ]->candidate != META_CANDIDATE ) {
- continue;
- }
-
- if ( ab ) {
- ldap_abandon( lsc[ 0 ]->ld, msgid[ i ] );
- rc = 0;
- break;
- }
+ if ( META_BACK_ONERR_REPORT( mi ) ) {
+ /*
+ * Report errors, if any
+ *
+ * FIXME: we should handle error codes and return the more
+ * important/reasonable
+ */
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
+ continue;
+ }
- if ( slimit > 0 && count == slimit ) {
- send_search_result( conn, op,
- LDAP_SIZELIMIT_EXCEEDED,
- NULL, NULL, NULL, NULL, count );
- goto finish;
+ if ( candidates[ i ].sr_err != LDAP_SUCCESS
+ && candidates[ i ].sr_err != LDAP_NO_SUCH_OBJECT )
+ {
+ sres = candidates[ i ].sr_err;
+ break;
+ }
}
+ }
+ }
- rc = ldap_result( lsc[ 0 ]->ld, msgid[ i ],
- 0, &tv, &res );
+ rs->sr_err = sres;
+ rs->sr_matched = matched;
+ rs->sr_ref = ( sres == LDAP_REFERRAL ? rs->sr_v2ref : NULL );
+ send_ldap_result( op, rs );
+ op->o_private = savepriv;
+ rs->sr_matched = NULL;
+ rs->sr_ref = NULL;
- if ( rc == 0 ) {
- continue;
- } else if ( rc == -1 ) {
- /* something REALLY bad happened! */
- ( void )meta_clear_unused_candidates( li,
- lc, -1, 0 );
- send_search_result( conn, op,
- LDAP_OPERATIONS_ERROR,
- "", "", NULL, NULL, count );
-
- /* anything else needs be done? */
- goto finish;
- } else if ( rc == LDAP_RES_SEARCH_ENTRY ) {
- e = ldap_first_entry( lsc[ 0 ]->ld, res );
- meta_send_entry(be, op, lc, i, e, attrs,
- attrsonly);
- count++;
- ldap_msgfree( res );
- gotit = 1;
- } else {
- sres = ldap_result2error( lsc[ 0 ]->ld,
- res, 1 );
- sres = ldap_back_map_result( sres );
- if ( err != NULL ) {
- free( err );
- }
- ldap_get_option( lsc[ 0 ]->ld,
- LDAP_OPT_ERROR_STRING, &err );
- if ( match != NULL ) {
- free( match );
- }
- ldap_get_option( lsc[ 0 ]->ld,
- LDAP_OPT_MATCHED_DN, &match );
-
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_ERR,
- "meta_back_search [%d]"
- " match=\"%s\" err=\"%s\"\n",
- i, match, err ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ANY,
- "=>meta_back_search [%d] match=\"%s\" err=\"%s\"\n",
- i, match, err );
-#endif /* !NEW_LOGGING */
-
- last = i;
- rc = 0;
+finish:;
+ if ( matched && matched != op->o_bd->be_suffix[ 0 ].bv_val ) {
+ op->o_tmpfree( matched, op->o_tmpmemctx );
+ }
- /*
- * When no candidates are left,
- * the outer cycle finishes
- */
- lsc[ 0 ]->candidate = META_NOT_CANDIDATE;
- --candidates;
+ if ( rs->sr_v2ref ) {
+ ber_bvarray_free( rs->sr_v2ref );
+ }
+
+ for ( i = 0; i < mi->mi_ntargets; i++ ) {
+ if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) {
+ continue;
+ }
+
+ if ( mc && META_IS_BINDING( &candidates[ i ] ) ) {
+ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex );
+ if ( LDAP_BACK_CONN_BINDING( &mc->mc_conns[ i ] ) ) {
+ assert( candidates[ i ].sr_msgid >= 0 );
+ assert( mc->mc_conns[ i ].msc_ld != NULL );
+
+#ifdef DEBUG_205
+ Debug( LDAP_DEBUG_ANY, "### %s meta_back_search(cleanup) "
+ "ldap_unbind_ext[%ld] ld=%p\n",
+ op->o_log_prefix, i, (void *)mc->mc_conns[i].msc_ld );
+#endif /* DEBUG_205 */
+
+ /* if still binding, destroy */
+ meta_clear_one_candidate( op, mc, i );
}
+ ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex );
+ META_BINDING_CLEAR( &candidates[ i ] );
}
- if ( ab ) {
- goto finish;
+ if ( candidates[ i ].sr_matched ) {
+ free( (char *)candidates[ i ].sr_matched );
+ candidates[ i ].sr_matched = NULL;
}
- if ( gotit == 0 ) {
- tv.tv_sec = 0;
- tv.tv_usec = 100000;
- ldap_pvt_thread_yield();
- } else {
- tv.tv_sec = 0;
- tv.tv_usec = 0;
+ if ( candidates[ i ].sr_text ) {
+ ldap_memfree( (char *)candidates[ i ].sr_text );
+ candidates[ i ].sr_text = NULL;
}
- }
- if ( rc == -1 ) {
- /*
- * FIXME: need a strategy to handle errors
- */
- rc = meta_back_op_result( lc, op );
- goto finish;
- }
+ if ( candidates[ i ].sr_ref ) {
+ ber_bvarray_free( candidates[ i ].sr_ref );
+ candidates[ i ].sr_ref = NULL;
+ }
- /*
- * Rewrite the matched portion of the search base, if required
- *
- * FIXME: only the last one gets caught!
- */
- if ( match != NULL ) {
- switch ( rewrite_session( li->targets[ last ]->rwinfo,
- "matchedDn", match, conn, &mmatch ) ) {
- case REWRITE_REGEXEC_OK:
- if ( mmatch == NULL ) {
- mmatch = ( char * )match;
- }
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
- "[rw] matchedDn: \"%s\" -> \"%s\"\n",
- match, mmatch ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ARGS, "rw> matchedDn:"
- " \"%s\" -> \"%s\"\n%s",
- match, mmatch, "" );
-#endif /* !NEW_LOGGING */
- break;
-
- case REWRITE_REGEXEC_UNWILLING:
- send_ldap_result( conn, op, LDAP_UNWILLING_TO_PERFORM,
- NULL, NULL, NULL, NULL );
- rc = -1;
- goto finish;
-
- case REWRITE_REGEXEC_ERR:
- send_ldap_result( conn, op, LDAP_OPERATIONS_ERROR,
- NULL, NULL, NULL, NULL );
- rc = -1;
- goto finish;
+ if ( candidates[ i ].sr_ctrls ) {
+ ldap_controls_free( candidates[ i ].sr_ctrls );
+ candidates[ i ].sr_ctrls = NULL;
}
- }
- send_search_result( conn, op, sres,
- mmatch, err, NULL, NULL, count );
+ if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) {
+ meta_back_quarantine( op, &candidates[ i ], i );
+ }
-finish:;
- if ( match ) {
- if ( mmatch != match ) {
- free( mmatch );
+ /* only in case of timelimit exceeded, if the timelimit exceeded because
+ * one contacted target never responded, invalidate the connection
+ * NOTE: should we quarantine the target as well? right now, the connection
+ * is invalidated; the next time it will be recreated and the target
+ * will be quarantined if it cannot be contacted */
+ if ( mi->mi_idle_timeout != 0
+ && rs->sr_err == LDAP_TIMELIMIT_EXCEEDED
+ && op->o_time > mc->mc_conns[ i ].msc_time )
+ {
+ /* don't let anyone else use this expired connection */
+ LDAP_BACK_CONN_TAINTED_SET( mc );
}
- free(match);
- }
-
- if ( err ) {
- free( err );
}
-
- if ( msgid ) {
- free( msgid );
+
+ if ( mc ) {
+ meta_back_release_conn( mi, mc );
}
-
- return rc;
+
+ return rs->sr_err;
}
-static void
+static int
meta_send_entry(
- Backend *be,
- Operation *op,
- struct metaconn *lc,
- int target,
- LDAPMessage *e,
- AttributeName *attrs,
- int attrsonly
-)
+ Operation *op,
+ SlapReply *rs,
+ metaconn_t *mc,
+ int target,
+ LDAPMessage *e )
{
- struct metainfo *li = ( struct metainfo * )be->be_private;
+ metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private;
struct berval a, mapped;
- Entry ent;
+ Entry ent = { 0 };
BerElement ber = *e->lm_ber;
Attribute *attr, **attrp;
- struct berval dummy = { 0, NULL };
- struct berval *bv, bdn;
+ struct berval bdn,
+ dn = BER_BVNULL;
const char *text;
+ dncookie dc;
+ int rc;
- if ( ber_scanf( &ber, "{o", &bdn ) == LBER_ERROR ) {
- return;
+ if ( ber_scanf( &ber, "{m{", &bdn ) == LBER_ERROR ) {
+ return LDAP_DECODING_ERROR;
}
/*
* Rewrite the dn of the result, if needed
*/
- switch ( rewrite_session( li->targets[ target ]->rwinfo,
- "searchResult", bdn.bv_val, lc->conn, &ent.e_name.bv_val ) ) {
- case REWRITE_REGEXEC_OK:
- if ( ent.e_name.bv_val == NULL ) {
- ent.e_name = bdn;
+ dc.target = mi->mi_targets[ target ];
+ dc.conn = op->o_conn;
+ dc.rs = rs;
+ dc.ctx = "searchResult";
- } else {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
- "[rw] searchResult[%d]:"
- " \"%s\" -> \"%s\"\n",
- target, bdn.bv_val, ent.e_name.bv_val ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ARGS, "rw> searchResult[%d]: \"%s\""
- " -> \"%s\"\n", target, bdn.bv_val, ent.e_name.bv_val );
-#endif /* !NEW_LOGGING */
- free( bdn.bv_val );
- bdn.bv_val = NULL;
- ent.e_name.bv_len = strlen( ent.e_name.bv_val );
- }
- break;
-
- case REWRITE_REGEXEC_ERR:
- case REWRITE_REGEXEC_UNWILLING:
- return;
+ rs->sr_err = ldap_back_dn_massage( &dc, &bdn, &dn );
+ if ( rs->sr_err != LDAP_SUCCESS) {
+ return rs->sr_err;
+ }
+
+ /*
+ * Note: this may fail if the target host(s) schema differs
+ * from the one known to the meta, and a DN with unknown
+ * attributes is returned.
+ *
+ * FIXME: should we log anything, or delegate to dnNormalize?
+ */
+ rc = dnPrettyNormal( NULL, &dn, &ent.e_name, &ent.e_nname,
+ op->o_tmpmemctx );
+ if ( dn.bv_val != bdn.bv_val ) {
+ free( dn.bv_val );
}
+ BER_BVZERO( &dn );
- dnNormalize2( NULL, &ent.e_name, &ent.e_nname );
+ if ( rc != LDAP_SUCCESS ) {
+ return LDAP_INVALID_DN_SYNTAX;
+ }
/*
* cache dn
*/
- if ( li->cache.ttl != META_DNCACHE_DISABLED ) {
- ( void )meta_dncache_update_entry( &li->cache,
- &ent.e_nname,
- target );
+ if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED ) {
+ ( void )meta_dncache_update_entry( &mi->mi_cache,
+ &ent.e_nname, target );
}
- ent.e_id = 0;
- ent.e_attrs = 0;
- ent.e_private = 0;
attrp = &ent.e_attrs;
- while ( ber_scanf( &ber, "{{o", &a ) != LBER_ERROR ) {
- ldap_back_map( &li->targets[ target ]->at_map,
- &a, &mapped, 1 );
- if ( mapped.bv_val == NULL ) {
+ dc.ctx = "searchAttrDN";
+ while ( ber_scanf( &ber, "{m", &a ) != LBER_ERROR ) {
+ int last = 0;
+ slap_syntax_validate_func *validate;
+ slap_syntax_transform_func *pretty;
+
+ ldap_back_map( &mi->mi_targets[ target ]->mt_rwmap.rwm_at,
+ &a, &mapped, BACKLDAP_REMAP );
+ if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0' ) {
+ ( void )ber_scanf( &ber, "x" /* [W] */ );
continue;
}
- attr = ( Attribute * )ch_malloc( sizeof( Attribute ) );
+ attr = ( Attribute * )ch_calloc( 1, sizeof( Attribute ) );
if ( attr == NULL ) {
continue;
}
- attr->a_next = 0;
- attr->a_desc = NULL;
if ( slap_bv2ad( &mapped, &attr->a_desc, &text )
!= LDAP_SUCCESS) {
- if ( slap_bv2undef_ad( &mapped, &attr->a_desc, &text )
- != LDAP_SUCCESS) {
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend", LDAP_LEVEL_DETAIL1,
- "slap_bv2undef_ad(%s): "
- "%s\n", mapped.bv_val, text ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ANY,
- "slap_bv2undef_ad(%s): "
- "%s\n%s", mapped.bv_val, text, "" );
-#endif /* !NEW_LOGGING */
+ if ( slap_bv2undef_ad( &mapped, &attr->a_desc, &text,
+ SLAP_AD_PROXIED ) != LDAP_SUCCESS )
+ {
+ char buf[ SLAP_TEXT_BUFLEN ];
+
+ snprintf( buf, sizeof( buf ),
+ "%s meta_send_entry(\"%s\"): "
+ "slap_bv2undef_ad(%s): %s\n",
+ op->o_log_prefix, ent.e_name.bv_val,
+ mapped.bv_val, text );
+
+ Debug( LDAP_DEBUG_ANY, "%s", buf, 0, 0 );
ch_free( attr );
continue;
}
}
- if ( ber_scanf( &ber, "[W]", &attr->a_vals ) == LBER_ERROR ) {
- attr->a_vals = &dummy;
- } else if ( strcasecmp( mapped.bv_val, "objectClass" ) == 0 ) {
- int i, last;
- for ( last = 0; attr->a_vals[ last ].bv_val; ++last );
- for ( i = 0; ( bv = &attr->a_vals[ i ] ); i++ ) {
- ldap_back_map( &li->targets[ target]->oc_map,
- bv, &mapped, 1 );
- if ( mapped.bv_val == NULL ) {
- free( attr->a_vals[ i ].bv_val );
- attr->a_vals[ i ].bv_val = NULL;
+ /* no subschemaSubentry */
+ if ( attr->a_desc == slap_schema.si_ad_subschemaSubentry
+ || attr->a_desc == slap_schema.si_ad_entryDN )
+ {
+
+ /*
+ * We eat target's subschemaSubentry because
+ * a search for this value is likely not
+ * to resolve to the appropriate backend;
+ * later, the local subschemaSubentry is
+ * added.
+ *
+ * We also eat entryDN because the frontend
+ * will reattach it without checking if already
+ * present...
+ */
+ ( void )ber_scanf( &ber, "x" /* [W] */ );
+
+ ch_free(attr);
+ continue;
+ }
+
+ if ( ber_scanf( &ber, "[W]", &attr->a_vals ) == LBER_ERROR
+ || attr->a_vals == NULL )
+ {
+ attr->a_vals = (struct berval *)&slap_dummy_bv;
+
+ } else {
+ for ( last = 0; !BER_BVISNULL( &attr->a_vals[ last ] ); ++last )
+ ;
+ }
+
+ validate = attr->a_desc->ad_type->sat_syntax->ssyn_validate;
+ pretty = attr->a_desc->ad_type->sat_syntax->ssyn_pretty;
+
+ if ( !validate && !pretty ) {
+ attr_free( attr );
+ goto next_attr;
+ }
+
+ if ( attr->a_desc == slap_schema.si_ad_objectClass
+ || attr->a_desc == slap_schema.si_ad_structuralObjectClass )
+ {
+ struct berval *bv;
+
+ for ( bv = attr->a_vals; !BER_BVISNULL( bv ); bv++ ) {
+ ldap_back_map( &mi->mi_targets[ target ]->mt_rwmap.rwm_oc,
+ bv, &mapped, BACKLDAP_REMAP );
+ if ( BER_BVISNULL( &mapped ) || mapped.bv_val[0] == '\0') {
+ free( bv->bv_val );
+ BER_BVZERO( bv );
if ( --last < 0 ) {
break;
}
- attr->a_vals[ i ] =
- attr->a_vals[ last ];
- attr->a_vals[ last ].bv_val = NULL;
- --i;
+ *bv = attr->a_vals[ last ];
+ BER_BVZERO( &attr->a_vals[ last ] );
+ bv--;
+
} else if ( mapped.bv_val != bv->bv_val ) {
- ch_free( bv->bv_val );
+ free( bv->bv_val );
ber_dupbv( bv, &mapped );
}
}
* ACLs to the target directory server, and letting
* everything pass thru the ldap backend.
*/
- } else if ( strcmp( attr->a_desc->ad_type->sat_syntax->ssyn_oid,
- SLAPD_DN_SYNTAX ) == 0 ) {
- int i;
- for ( i = 0; ( bv = &attr->a_vals[ i ] ); i++ ) {
- char *newval;
-
- switch ( rewrite_session( li->targets[ target ]->rwinfo,
- "searchResult",
- bv->bv_val,
- lc->conn, &newval )) {
- case REWRITE_REGEXEC_OK:
- /* left as is */
- if ( newval == NULL ) {
+ } else {
+ int i;
+
+ if ( attr->a_desc->ad_type->sat_syntax ==
+ slap_schema.si_syn_distinguishedName )
+ {
+ ldap_dnattr_result_rewrite( &dc, attr->a_vals );
+
+ } else if ( attr->a_desc == slap_schema.si_ad_ref ) {
+ ldap_back_referral_result_rewrite( &dc, attr->a_vals );
+
+ }
+
+ for ( i = 0; i < last; i++ ) {
+ struct berval pval;
+ int rc;
+
+ if ( pretty ) {
+ rc = pretty( attr->a_desc->ad_type->sat_syntax,
+ &attr->a_vals[i], &pval, NULL );
+
+ } else {
+ rc = validate( attr->a_desc->ad_type->sat_syntax,
+ &attr->a_vals[i] );
+ }
+
+ if ( rc ) {
+ LBER_FREE( attr->a_vals[i].bv_val );
+ if ( --last == i ) {
+ BER_BVZERO( &attr->a_vals[ i ] );
break;
}
-#ifdef NEW_LOGGING
- LDAP_LOG(( "backend",
- LDAP_LEVEL_DETAIL1,
- "[rw] searchResult on"
- " attr=%s:"
- " \"%s\" -> \"%s\"\n",
- attr->a_desc->ad_type->sat_cname.bv_val,
- bv->bv_val, newval ));
-#else /* !NEW_LOGGING */
- Debug( LDAP_DEBUG_ARGS,
- "rw> searchResult on attr=%s:"
- " \"%s\" -> \"%s\"\n",
- attr->a_desc->ad_type->sat_cname.bv_val,
- bv->bv_val, newval );
-#endif /* !NEW_LOGGING */
-
- free( bv->bv_val );
- bv->bv_val = newval;
- bv->bv_len = strlen( newval );
-
- break;
+ attr->a_vals[i] = attr->a_vals[last];
+ BER_BVZERO( &attr->a_vals[last] );
+ i--;
+ continue;
+ }
- case REWRITE_REGEXEC_UNWILLING:
-
- case REWRITE_REGEXEC_ERR:
- /*
- * FIXME: better give up,
- * skip the attribute
- * or leave it untouched?
- */
- break;
+ if ( pretty ) {
+ LBER_FREE( attr->a_vals[i].bv_val );
+ attr->a_vals[i] = pval;
}
}
+
+ if ( last == 0 && attr->a_vals != &slap_dummy_bv ) {
+ attr_free( attr );
+ goto next_attr;
+ }
+ }
+
+ if ( last && attr->a_desc->ad_type->sat_equality &&
+ attr->a_desc->ad_type->sat_equality->smr_normalize )
+ {
+ int i;
+
+ attr->a_nvals = ch_malloc( ( last + 1 ) * sizeof( struct berval ) );
+ for ( i = 0; i<last; i++ ) {
+ attr->a_desc->ad_type->sat_equality->smr_normalize(
+ SLAP_MR_VALUE_OF_ATTRIBUTE_SYNTAX,
+ attr->a_desc->ad_type->sat_syntax,
+ attr->a_desc->ad_type->sat_equality,
+ &attr->a_vals[i], &attr->a_nvals[i],
+ NULL );
+ }
+ BER_BVZERO( &attr->a_nvals[i] );
+
+ } else {
+ attr->a_nvals = attr->a_vals;
}
+
*attrp = attr;
attrp = &attr->a_next;
+next_attr:;
}
- send_search_entry( be, lc->conn, op, &ent, attrs, attrsonly, NULL );
- while ( ent.e_attrs ) {
- attr = ent.e_attrs;
- ent.e_attrs = attr->a_next;
- if ( attr->a_vals != &dummy ) {
- bvarray_free( attr->a_vals );
- }
- free( attr );
+ rs->sr_entry = &ent;
+ rs->sr_attrs = op->ors_attrs;
+ rs->sr_flags = 0;
+ rs->sr_err = LDAP_SUCCESS;
+ rc = send_search_entry( op, rs );
+ switch ( rc ) {
+ case LDAP_UNAVAILABLE:
+ rc = LDAP_OTHER;
+ break;
}
+ rs->sr_entry = NULL;
+ rs->sr_attrs = NULL;
- if ( ent.e_dn ) {
- free( ent.e_dn );
- }
- if ( ent.e_ndn ) {
- free( ent.e_ndn );
+ if ( !BER_BVISNULL( &ent.e_name ) ) {
+ free( ent.e_name.bv_val );
+ BER_BVZERO( &ent.e_name );
}
-}
-
-static int
-is_one_level_rdn(
- const char *rdn,
- int from
-)
-{
- for ( ; from--; ) {
- if ( DN_SEPARATOR( rdn[ from ] )
- && ! DN_ESCAPE( rdn[ from ] - 1 ) ) {
- return 0;
- }
+ if ( !BER_BVISNULL( &ent.e_nname ) ) {
+ free( ent.e_nname.bv_val );
+ BER_BVZERO( &ent.e_nname );
}
+ entry_clean( &ent );
- return 1;
+ return rc;
}
projects / openldap / blobdiff