/* $NetBSD: bind.c,v 1.1.1.6.6.1 2019/08/10 06:17:18 martin Exp $ */ /* $OpenLDAP$ */ /* This work is part of OpenLDAP Software . * * Copyright 1999-2019 The OpenLDAP Foundation. * Portions Copyright 2001-2003 Pierangelo Masarati. * Portions Copyright 1999-2003 Howard Chu. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted only as authorized by the OpenLDAP * Public License. * * A copy of this license is available in the file LICENSE in the * top-level directory of the distribution or, alternatively, at * . */ /* ACKNOWLEDGEMENTS: * This work was initially developed by the Howard Chu for inclusion * in OpenLDAP Software and subsequently enhanced by Pierangelo * Masarati. */ #include __RCSID("$NetBSD: bind.c,v 1.1.1.6.6.1 2019/08/10 06:17:18 martin Exp $"); #include "portable.h" #include #include #include #include #define AVL_INTERNAL #include "slap.h" #include "../back-ldap/back-ldap.h" #include "back-meta.h" #include "lutil_ldap.h" static int meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok, int dolock ); static int meta_back_single_bind( Operation *op, SlapReply *rs, metaconn_t *mc, int candidate ); int meta_back_bind( Operation *op, SlapReply *rs ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; metaconn_t *mc = NULL; int rc = LDAP_OTHER, i, gotit = 0, isroot = 0; SlapReply *candidates; rs->sr_err = LDAP_SUCCESS; Debug( LDAP_DEBUG_ARGS, "%s meta_back_bind: dn=\"%s\".\n", op->o_log_prefix, op->o_req_dn.bv_val, 0 ); /* the test on the bind method should be superfluous */ switch ( be_rootdn_bind( op, rs ) ) { case LDAP_SUCCESS: if ( META_BACK_DEFER_ROOTDN_BIND( mi ) ) { /* frontend will return success */ return rs->sr_err; } isroot = 1; /* fallthru */ case SLAP_CB_CONTINUE: break; default: /* be_rootdn_bind() sent result */ return rs->sr_err; } /* we need meta_back_getconn() not send result even on error, * because we want to intercept the error and make it * invalidCredentials */ mc = meta_back_getconn( op, rs, NULL, LDAP_BACK_BIND_DONTSEND ); if ( !mc ) { if ( LogTest( LDAP_DEBUG_ANY ) ) { char buf[ SLAP_TEXT_BUFLEN ]; snprintf( buf, sizeof( buf ), "meta_back_bind: no target " "for dn \"%s\" (%d%s%s).", op->o_req_dn.bv_val, rs->sr_err, rs->sr_text ? ". " : "", rs->sr_text ? rs->sr_text : "" ); Debug( LDAP_DEBUG_ANY, "%s %s\n", op->o_log_prefix, buf, 0 ); } /* FIXME: there might be cases where we don't want * to map the error onto invalidCredentials */ switch ( rs->sr_err ) { case LDAP_NO_SUCH_OBJECT: case LDAP_UNWILLING_TO_PERFORM: rs->sr_err = LDAP_INVALID_CREDENTIALS; rs->sr_text = NULL; break; } send_ldap_result( op, rs ); return rs->sr_err; } candidates = meta_back_candidates_get( op ); /* * Each target is scanned ... */ mc->mc_authz_target = META_BOUND_NONE; for ( i = 0; i < mi->mi_ntargets; i++ ) { metatarget_t *mt = mi->mi_targets[ i ]; int lerr; /* * Skip non-candidates */ if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) { continue; } if ( gotit == 0 ) { /* set rc to LDAP_SUCCESS only if at least * one candidate has been tried */ rc = LDAP_SUCCESS; gotit = 1; } else if ( !isroot ) { /* * A bind operation is expected to have * ONE CANDIDATE ONLY! */ Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind: more than one" " candidate selected...\n", op->o_log_prefix, 0, 0 ); } if ( isroot ) { if ( mt->mt_idassert_authmethod == LDAP_AUTH_NONE || BER_BVISNULL( &mt->mt_idassert_authcDN ) ) { metasingleconn_t *msc = &mc->mc_conns[ i ]; /* skip the target if no pseudorootdn is provided */ if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) { ch_free( msc->msc_bound_ndn.bv_val ); BER_BVZERO( &msc->msc_bound_ndn ); } if ( !BER_BVISNULL( &msc->msc_cred ) ) { /* destroy sensitive data */ memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len ); ch_free( msc->msc_cred.bv_val ); BER_BVZERO( &msc->msc_cred ); } continue; } (void)meta_back_proxy_authz_bind( mc, i, op, rs, LDAP_BACK_DONTSEND, 1 ); lerr = rs->sr_err; } else { lerr = meta_back_single_bind( op, rs, mc, i ); } if ( lerr != LDAP_SUCCESS ) { rc = rs->sr_err = lerr; /* FIXME: in some cases (e.g. unavailable) * do not assume it's not candidate; rather * mark this as an error to be eventually * reported to client */ META_CANDIDATE_CLEAR( &candidates[ i ] ); break; } } /* must re-insert if local DN changed as result of bind */ if ( rc == LDAP_SUCCESS ) { if ( isroot ) { mc->mc_authz_target = META_BOUND_ALL; } if ( !LDAP_BACK_PCONN_ISPRIV( mc ) && !dn_match( &op->o_req_ndn, &mc->mc_local_ndn ) ) { int lerr; /* wait for all other ops to release the connection */ ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); assert( mc->mc_refcnt == 1 ); #if META_BACK_PRINT_CONNTREE > 0 meta_back_print_conntree( mi, ">>> meta_back_bind" ); #endif /* META_BACK_PRINT_CONNTREE */ /* delete all cached connections with the current connection */ if ( LDAP_BACK_SINGLECONN( mi ) ) { metaconn_t *tmpmc; while ( ( tmpmc = avl_delete( &mi->mi_conninfo.lai_tree, (caddr_t)mc, meta_back_conn_cmp ) ) != NULL ) { assert( !LDAP_BACK_PCONN_ISPRIV( mc ) ); Debug( LDAP_DEBUG_TRACE, "=>meta_back_bind: destroying conn %lu (refcnt=%u)\n", mc->mc_conn->c_connid, mc->mc_refcnt, 0 ); if ( tmpmc->mc_refcnt != 0 ) { /* taint it */ LDAP_BACK_CONN_TAINTED_SET( tmpmc ); } else { /* * Needs a test because the handler may be corrupted, * and calling ldap_unbind on a corrupted header results * in a segmentation fault */ meta_back_conn_free( tmpmc ); } } } ber_bvreplace( &mc->mc_local_ndn, &op->o_req_ndn ); lerr = avl_insert( &mi->mi_conninfo.lai_tree, (caddr_t)mc, meta_back_conndn_cmp, meta_back_conndn_dup ); #if META_BACK_PRINT_CONNTREE > 0 meta_back_print_conntree( mi, "<<< meta_back_bind" ); #endif /* META_BACK_PRINT_CONNTREE */ if ( lerr == 0 ) { #if 0 /* NOTE: a connection cannot be privileged * and be in the avl tree at the same time */ if ( isroot ) { LDAP_BACK_CONN_ISPRIV_SET( mc ); LDAP_BACK_PCONN_SET( mc, op ); } #endif LDAP_BACK_CONN_CACHED_SET( mc ); } else { LDAP_BACK_CONN_CACHED_CLEAR( mc ); } ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } } if ( mc != NULL ) { meta_back_release_conn( mi, mc ); } /* * rc is LDAP_SUCCESS if at least one bind succeeded, * err is the last error that occurred during a bind; * if at least (and at most?) one bind succeeds, fine. */ if ( rc != LDAP_SUCCESS ) { /* * deal with bind failure ... */ /* * no target was found within the naming context, * so bind must fail with invalid credentials */ if ( rs->sr_err == LDAP_SUCCESS && gotit == 0 ) { rs->sr_err = LDAP_INVALID_CREDENTIALS; } else { rs->sr_err = slap_map_api2result( rs ); } send_ldap_result( op, rs ); return rs->sr_err; } return LDAP_SUCCESS; } static int meta_back_bind_op_result( Operation *op, SlapReply *rs, metaconn_t *mc, int candidate, int msgid, ldap_back_send_t sendok, int dolock ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; metatarget_t *mt = mi->mi_targets[ candidate ]; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; LDAPMessage *res; struct timeval tv; int rc; int nretries = mt->mt_nretries; char buf[ SLAP_TEXT_BUFLEN ]; Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_bind_op_result[%d]\n", op->o_log_prefix, candidate, 0 ); /* make sure this is clean */ assert( rs->sr_ctrls == NULL ); if ( rs->sr_err == LDAP_SUCCESS ) { time_t stoptime = (time_t)(-1), timeout; int timeout_err = op->o_protocol >= LDAP_VERSION3 ? LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER; const char *timeout_text = "Operation timed out"; slap_op_t opidx = slap_req2op( op->o_tag ); /* since timeout is not specified, compute and use * the one specific to the ongoing operation */ if ( opidx == LDAP_REQ_SEARCH ) { if ( op->ors_tlimit <= 0 ) { timeout = 0; } else { timeout = op->ors_tlimit; timeout_err = LDAP_TIMELIMIT_EXCEEDED; timeout_text = NULL; } } else { timeout = mt->mt_timeout[ opidx ]; } /* better than nothing :) */ if ( timeout == 0 ) { if ( mi->mi_idle_timeout ) { timeout = mi->mi_idle_timeout; } else if ( mi->mi_conn_ttl ) { timeout = mi->mi_conn_ttl; } } if ( timeout ) { stoptime = op->o_time + timeout; } LDAP_BACK_TV_SET( &tv ); /* * handle response!!! */ retry:; rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res ); switch ( rc ) { case 0: if ( nretries != META_RETRY_NEVER || ( timeout && slap_get_time() <= stoptime ) ) { ldap_pvt_thread_yield(); if ( nretries > 0 ) { nretries--; } tv = mt->mt_bind_timeout; goto retry; } /* don't let anyone else use this handler, * because there's a pending bind that will not * be acknowledged */ if ( dolock) { ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); } assert( LDAP_BACK_CONN_BINDING( msc ) ); #ifdef DEBUG_205 Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind_op_result ldap_unbind_ext[%d] ld=%p\n", op->o_log_prefix, candidate, (void *)msc->msc_ld ); #endif /* DEBUG_205 */ meta_clear_one_candidate( op, mc, candidate ); if ( dolock ) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } rs->sr_err = timeout_err; rs->sr_text = timeout_text; break; case -1: ldap_get_option( msc->msc_ld, LDAP_OPT_ERROR_NUMBER, &rs->sr_err ); snprintf( buf, sizeof( buf ), "err=%d (%s) nretries=%d", rs->sr_err, ldap_err2string( rs->sr_err ), nretries ); Debug( LDAP_DEBUG_ANY, "### %s meta_back_bind_op_result[%d]: %s.\n", op->o_log_prefix, candidate, buf ); break; default: /* only touch when activity actually took place... */ if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) { msc->msc_time = op->o_time; } /* FIXME: matched? referrals? response controls? */ rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err, NULL, NULL, NULL, NULL, 1 ); if ( rc != LDAP_SUCCESS ) { rs->sr_err = rc; } rs->sr_err = slap_map_api2result( rs ); break; } } rs->sr_err = slap_map_api2result( rs ); Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_bind_op_result[%d] err=%d\n", op->o_log_prefix, candidate, rs->sr_err ); return rs->sr_err; } /* * meta_back_single_bind * * attempts to perform a bind with creds */ static int meta_back_single_bind( Operation *op, SlapReply *rs, metaconn_t *mc, int candidate ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; metatarget_t *mt = mi->mi_targets[ candidate ]; struct berval mdn = BER_BVNULL; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; int msgid; dncookie dc; struct berval save_o_dn; int save_o_do_not_cache; LDAPControl **ctrls = NULL; if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) { ch_free( msc->msc_bound_ndn.bv_val ); BER_BVZERO( &msc->msc_bound_ndn ); } if ( !BER_BVISNULL( &msc->msc_cred ) ) { /* destroy sensitive data */ memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len ); ch_free( msc->msc_cred.bv_val ); BER_BVZERO( &msc->msc_cred ); } /* * Rewrite the bind dn if needed */ dc.target = mt; dc.conn = op->o_conn; dc.rs = rs; dc.ctx = "bindDN"; if ( ldap_back_dn_massage( &dc, &op->o_req_dn, &mdn ) ) { rs->sr_text = "DN rewrite error"; rs->sr_err = LDAP_OTHER; return rs->sr_err; } /* don't add proxyAuthz; set the bindDN */ save_o_dn = op->o_dn; save_o_do_not_cache = op->o_do_not_cache; op->o_do_not_cache = 1; op->o_dn = op->o_req_dn; ctrls = op->o_ctrls; rs->sr_err = meta_back_controls_add( op, rs, mc, candidate, &ctrls ); op->o_dn = save_o_dn; op->o_do_not_cache = save_o_do_not_cache; if ( rs->sr_err != LDAP_SUCCESS ) { goto return_results; } /* FIXME: this fixes the bind problem right now; we need * to use the asynchronous version to get the "matched" * and more in case of failure ... */ /* FIXME: should we check if at least some of the op->o_ctrls * can/should be passed? */ for (;;) { rs->sr_err = ldap_sasl_bind( msc->msc_ld, mdn.bv_val, LDAP_SASL_SIMPLE, &op->orb_cred, ctrls, NULL, &msgid ); if ( rs->sr_err != LDAP_X_CONNECTING ) { break; } ldap_pvt_thread_yield(); } mi->mi_ldap_extra->controls_free( op, rs, &ctrls ); meta_back_bind_op_result( op, rs, mc, candidate, msgid, LDAP_BACK_DONTSEND, 1 ); if ( rs->sr_err != LDAP_SUCCESS ) { goto return_results; } /* If defined, proxyAuthz will be used also when * back-ldap is the authorizing backend; for this * purpose, a successful bind is followed by a * bind with the configured identity assertion */ /* NOTE: use with care */ if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) { meta_back_proxy_authz_bind( mc, candidate, op, rs, LDAP_BACK_SENDERR, 1 ); if ( !LDAP_BACK_CONN_ISBOUND( msc ) ) { goto return_results; } goto cache_refresh; } ber_bvreplace( &msc->msc_bound_ndn, &op->o_req_ndn ); LDAP_BACK_CONN_ISBOUND_SET( msc ); mc->mc_authz_target = candidate; if ( META_BACK_TGT_SAVECRED( mt ) ) { if ( !BER_BVISNULL( &msc->msc_cred ) ) { memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len ); } ber_bvreplace( &msc->msc_cred, &op->orb_cred ); ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc ); } cache_refresh:; if ( mi->mi_cache.ttl != META_DNCACHE_DISABLED && !BER_BVISEMPTY( &op->o_req_ndn ) ) { ( void )meta_dncache_update_entry( &mi->mi_cache, &op->o_req_ndn, candidate ); } return_results:; if ( mdn.bv_val != op->o_req_dn.bv_val ) { free( mdn.bv_val ); } if ( META_BACK_TGT_QUARANTINE( mt ) ) { meta_back_quarantine( op, rs, candidate ); } return rs->sr_err; } /* * meta_back_single_dobind */ int meta_back_single_dobind( Operation *op, SlapReply *rs, metaconn_t **mcp, int candidate, ldap_back_send_t sendok, int nretries, int dolock ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; metatarget_t *mt = mi->mi_targets[ candidate ]; metaconn_t *mc = *mcp; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; int msgid; assert( !LDAP_BACK_CONN_ISBOUND( msc ) ); /* 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 ) || ( LDAP_BACK_CONN_ISPRIV( mc ) && dn_match( &msc->msc_bound_ndn, &mt->mt_idassert_authcDN ) ) || ( mt->mt_idassert_flags & LDAP_BACK_AUTH_OVERRIDE ) ) ) { (void)meta_back_proxy_authz_bind( mc, candidate, op, rs, sendok, dolock ); } else { char *binddn = ""; struct berval cred = BER_BVC( "" ); /* use credentials if available */ if ( !BER_BVISNULL( &msc->msc_bound_ndn ) && !BER_BVISNULL( &msc->msc_cred ) ) { binddn = msc->msc_bound_ndn.bv_val; cred = msc->msc_cred; } /* FIXME: should we check if at least some of the op->o_ctrls * can/should be passed? */ if(!dolock) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } for (;;) { rs->sr_err = ldap_sasl_bind( msc->msc_ld, binddn, LDAP_SASL_SIMPLE, &cred, NULL, NULL, &msgid ); if ( rs->sr_err != LDAP_X_CONNECTING ) { break; } ldap_pvt_thread_yield(); } if(!dolock) { ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); } rs->sr_err = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok, dolock ); /* if bind succeeded, but anonymous, clear msc_bound_ndn */ if ( rs->sr_err != LDAP_SUCCESS || binddn[0] == '\0' ) { if ( !BER_BVISNULL( &msc->msc_bound_ndn ) ) { ber_memfree( msc->msc_bound_ndn.bv_val ); BER_BVZERO( &msc->msc_bound_ndn ); } if ( !BER_BVISNULL( &msc->msc_cred ) ) { memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len ); ber_memfree( msc->msc_cred.bv_val ); BER_BVZERO( &msc->msc_cred ); } } } if ( rs->sr_err != LDAP_SUCCESS ) { if ( dolock ) { ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); } LDAP_BACK_CONN_BINDING_CLEAR( msc ); if ( META_BACK_ONERR_STOP( mi ) ) { LDAP_BACK_CONN_TAINTED_SET( mc ); meta_back_release_conn_lock( mi, mc, 0 ); *mcp = NULL; } if ( dolock ) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } } if ( META_BACK_TGT_QUARANTINE( mt ) ) { meta_back_quarantine( op, rs, candidate ); } return rs->sr_err; } /* * meta_back_dobind */ int meta_back_dobind( Operation *op, SlapReply *rs, metaconn_t *mc, ldap_back_send_t sendok ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; int bound = 0, i, isroot = 0; SlapReply *candidates; if ( be_isroot( op ) ) { isroot = 1; } if ( LogTest( LDAP_DEBUG_TRACE ) ) { char buf[STRLENOF("4294967295U") + 1] = { 0 }; mi->mi_ldap_extra->connid2str( &mc->mc_base, buf, sizeof(buf) ); Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind: conn=%s%s\n", op->o_log_prefix, buf, isroot ? " (isroot)" : "" ); } /* * all the targets are bound as pseudoroot */ if ( mc->mc_authz_target == META_BOUND_ALL ) { bound = 1; goto done; } candidates = meta_back_candidates_get( op ); for ( i = 0; i < mi->mi_ntargets; i++ ) { metatarget_t *mt = mi->mi_targets[ i ]; metasingleconn_t *msc = &mc->mc_conns[ i ]; int rc; /* * Not a candidate */ if ( !META_IS_CANDIDATE( &candidates[ i ] ) ) { continue; } assert( msc->msc_ld != NULL ); /* * If the target is already bound it is skipped */ retry_binding:; ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); if ( LDAP_BACK_CONN_ISBOUND( msc ) || ( LDAP_BACK_CONN_ISANON( msc ) && mt->mt_idassert_authmethod == LDAP_AUTH_NONE ) ) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); ++bound; continue; } else if ( META_BACK_CONN_CREATING( msc ) || LDAP_BACK_CONN_BINDING( msc ) ) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); ldap_pvt_thread_yield(); goto retry_binding; } LDAP_BACK_CONN_BINDING_SET( msc ); ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); rc = meta_back_single_dobind( op, rs, &mc, i, LDAP_BACK_DONTSEND, mt->mt_nretries, 1 ); /* * NOTE: meta_back_single_dobind() already retries; * in case of failure, it resets mc... */ if ( rc != LDAP_SUCCESS ) { char buf[ SLAP_TEXT_BUFLEN ]; if ( mc == NULL ) { /* meta_back_single_dobind() already sent * response and released connection */ goto send_err; } if ( rc == LDAP_UNAVAILABLE ) { /* FIXME: meta_back_retry() already re-calls * meta_back_single_dobind() */ if ( meta_back_retry( op, rs, &mc, i, sendok ) ) { goto retry_ok; } if ( mc != NULL ) { ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); LDAP_BACK_CONN_BINDING_CLEAR( msc ); meta_back_release_conn_lock( mi, mc, 0 ); ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } return 0; } 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 ); snprintf( buf, sizeof( buf ), "meta_back_dobind[%d]: (%s) err=%d (%s).", i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous", rc, ldap_err2string( rc ) ); Debug( LDAP_DEBUG_ANY, "%s %s\n", op->o_log_prefix, buf, 0 ); /* * null cred bind should always succeed * as anonymous, so a failure means * the target is no longer candidate possibly * due to technical reasons (remote host down?) * so better clear the handle */ /* leave the target candidate, but record the error for later use */ candidates[ i ].sr_err = rc; if ( META_BACK_ONERR_STOP( mi ) ) { bound = 0; goto done; } continue; } /* else */ retry_ok:; Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind[%d]: " "(%s)\n", op->o_log_prefix, i, isroot ? op->o_bd->be_rootdn.bv_val : "anonymous" ); ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); LDAP_BACK_CONN_BINDING_CLEAR( msc ); if ( isroot ) { LDAP_BACK_CONN_ISBOUND_SET( msc ); } else { LDAP_BACK_CONN_ISANON_SET( msc ); } ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); ++bound; } done:; if ( LogTest( LDAP_DEBUG_TRACE ) ) { char buf[STRLENOF("4294967295U") + 1] = { 0 }; mi->mi_ldap_extra->connid2str( &mc->mc_base, buf, sizeof(buf) ); Debug( LDAP_DEBUG_TRACE, "%s meta_back_dobind: conn=%s bound=%d\n", op->o_log_prefix, buf, bound ); } if ( bound == 0 ) { meta_back_release_conn( mi, mc ); send_err:; if ( sendok & LDAP_BACK_SENDERR ) { if ( rs->sr_err == LDAP_SUCCESS ) { rs->sr_err = LDAP_BUSY; } send_ldap_result( op, rs ); } return 0; } return ( bound > 0 ); } /* * meta_back_default_rebind * * This is a callback used for chasing referrals using the same * credentials as the original user on this session. */ int meta_back_default_rebind( LDAP *ld, LDAP_CONST char *url, ber_tag_t request, ber_int_t msgid, void *params ) { metasingleconn_t *msc = ( metasingleconn_t * )params; return ldap_sasl_bind_s( ld, msc->msc_bound_ndn.bv_val, LDAP_SASL_SIMPLE, &msc->msc_cred, NULL, NULL, NULL ); } /* * meta_back_default_urllist * * This is a callback used for mucking with the urllist */ int meta_back_default_urllist( LDAP *ld, LDAPURLDesc **urllist, LDAPURLDesc **url, void *params ) { metatarget_t *mt = (metatarget_t *)params; LDAPURLDesc **urltail; if ( urllist == url ) { return LDAP_SUCCESS; } for ( urltail = &(*url)->lud_next; *urltail; urltail = &(*urltail)->lud_next ) /* count */ ; *urltail = *urllist; *urllist = *url; *url = NULL; ldap_pvt_thread_mutex_lock( &mt->mt_uri_mutex ); if ( mt->mt_uri ) { ch_free( mt->mt_uri ); } ldap_get_option( ld, LDAP_OPT_URI, (void *)&mt->mt_uri ); ldap_pvt_thread_mutex_unlock( &mt->mt_uri_mutex ); return LDAP_SUCCESS; } int meta_back_cancel( metaconn_t *mc, Operation *op, SlapReply *rs, ber_int_t msgid, int candidate, ldap_back_send_t sendok ) { metainfo_t *mi = (metainfo_t *)op->o_bd->be_private; metatarget_t *mt = mi->mi_targets[ candidate ]; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; int rc = LDAP_OTHER; Debug( LDAP_DEBUG_TRACE, ">>> %s meta_back_cancel[%d] msgid=%d\n", op->o_log_prefix, candidate, msgid ); /* default behavior */ if ( META_BACK_TGT_ABANDON( mt ) ) { rc = ldap_abandon_ext( msc->msc_ld, msgid, NULL, NULL ); } else if ( META_BACK_TGT_IGNORE( mt ) ) { rc = ldap_pvt_discard( msc->msc_ld, msgid ); } else if ( META_BACK_TGT_CANCEL( mt ) ) { rc = ldap_cancel_s( msc->msc_ld, msgid, NULL, NULL ); } else { assert( 0 ); } Debug( LDAP_DEBUG_TRACE, "<<< %s meta_back_cancel[%d] err=%d\n", op->o_log_prefix, candidate, rc ); return rc; } /* * FIXME: error return must be handled in a cleaner way ... */ int meta_back_op_result( metaconn_t *mc, Operation *op, SlapReply *rs, int candidate, ber_int_t msgid, time_t timeout, ldap_back_send_t sendok ) { metainfo_t *mi = ( metainfo_t * )op->o_bd->be_private; const char *save_text = rs->sr_text, *save_matched = rs->sr_matched; BerVarray save_ref = rs->sr_ref; LDAPControl **save_ctrls = rs->sr_ctrls; void *matched_ctx = NULL; char *matched = NULL; char *text = NULL; char **refs = NULL; LDAPControl **ctrls = NULL; assert( mc != NULL ); rs->sr_text = NULL; rs->sr_matched = NULL; rs->sr_ref = NULL; rs->sr_ctrls = NULL; if ( candidate != META_TARGET_NONE ) { metatarget_t *mt = mi->mi_targets[ candidate ]; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; if ( LDAP_ERR_OK( rs->sr_err ) ) { int rc; struct timeval tv; LDAPMessage *res = NULL; time_t stoptime = (time_t)(-1); int timeout_err = op->o_protocol >= LDAP_VERSION3 ? LDAP_ADMINLIMIT_EXCEEDED : LDAP_OTHER; const char *timeout_text = "Operation timed out"; /* if timeout is not specified, compute and use * the one specific to the ongoing operation */ if ( timeout == (time_t)(-1) ) { slap_op_t opidx = slap_req2op( op->o_tag ); if ( opidx == SLAP_OP_SEARCH ) { if ( op->ors_tlimit <= 0 ) { timeout = 0; } else { timeout = op->ors_tlimit; timeout_err = LDAP_TIMELIMIT_EXCEEDED; timeout_text = NULL; } } else { timeout = mt->mt_timeout[ opidx ]; } } /* better than nothing :) */ if ( timeout == 0 ) { if ( mi->mi_idle_timeout ) { timeout = mi->mi_idle_timeout; } else if ( mi->mi_conn_ttl ) { timeout = mi->mi_conn_ttl; } } if ( timeout ) { stoptime = op->o_time + timeout; } LDAP_BACK_TV_SET( &tv ); retry:; rc = ldap_result( msc->msc_ld, msgid, LDAP_MSG_ALL, &tv, &res ); switch ( rc ) { case 0: if ( timeout && slap_get_time() > stoptime ) { (void)meta_back_cancel( mc, op, rs, msgid, candidate, sendok ); rs->sr_err = timeout_err; rs->sr_text = timeout_text; break; } LDAP_BACK_TV_SET( &tv ); ldap_pvt_thread_yield(); goto retry; case -1: ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err ); break; /* otherwise get the result; if it is not * LDAP_SUCCESS, record it in the reply * structure (this includes * LDAP_COMPARE_{TRUE|FALSE}) */ default: /* only touch when activity actually took place... */ if ( mi->mi_idle_timeout != 0 && msc->msc_time < op->o_time ) { msc->msc_time = op->o_time; } rc = ldap_parse_result( msc->msc_ld, res, &rs->sr_err, &matched, &text, &refs, &ctrls, 1 ); res = NULL; if ( rc == LDAP_SUCCESS ) { rs->sr_text = text; } else { rs->sr_err = rc; } rs->sr_err = slap_map_api2result( rs ); /* RFC 4511: referrals can only appear * if result code is LDAP_REFERRAL */ if ( refs != NULL && refs[ 0 ] != NULL && refs[ 0 ][ 0 ] != '\0' ) { if ( rs->sr_err != LDAP_REFERRAL ) { Debug( LDAP_DEBUG_ANY, "%s meta_back_op_result[%d]: " "got referrals with err=%d\n", op->o_log_prefix, candidate, rs->sr_err ); } else { int i; for ( i = 0; refs[ i ] != NULL; i++ ) /* count */ ; rs->sr_ref = op->o_tmpalloc( sizeof( struct berval ) * ( i + 1 ), op->o_tmpmemctx ); for ( i = 0; refs[ i ] != NULL; i++ ) { ber_str2bv( refs[ i ], 0, 0, &rs->sr_ref[ i ] ); } BER_BVZERO( &rs->sr_ref[ i ] ); } } else if ( rs->sr_err == LDAP_REFERRAL ) { Debug( LDAP_DEBUG_ANY, "%s meta_back_op_result[%d]: " "got err=%d with null " "or empty referrals\n", op->o_log_prefix, candidate, rs->sr_err ); rs->sr_err = LDAP_NO_SUCH_OBJECT; } if ( ctrls != NULL ) { rs->sr_ctrls = ctrls; } } assert( res == NULL ); } /* if the error in the reply structure is not * LDAP_SUCCESS, try to map it from client * to server error */ if ( !LDAP_ERR_OK( rs->sr_err ) ) { rs->sr_err = slap_map_api2result( rs ); /* internal ops ( op->o_conn == NULL ) * must not reply to client */ if ( op->o_conn && !op->o_do_not_cache && matched ) { /* record the (massaged) matched * DN into the reply structure */ rs->sr_matched = matched; } } if ( META_BACK_TGT_QUARANTINE( mt ) ) { meta_back_quarantine( op, rs, candidate ); } } else { int i, err = rs->sr_err; for ( i = 0; i < mi->mi_ntargets; i++ ) { metasingleconn_t *msc = &mc->mc_conns[ i ]; char *xtext = NULL; char *xmatched = NULL; if ( msc->msc_ld == NULL ) { continue; } rs->sr_err = LDAP_SUCCESS; ldap_get_option( msc->msc_ld, LDAP_OPT_RESULT_CODE, &rs->sr_err ); if ( rs->sr_err != LDAP_SUCCESS ) { /* * better check the type of error. In some cases * (search ?) it might be better to return a * success if at least one of the targets gave * positive result ... */ ldap_get_option( msc->msc_ld, LDAP_OPT_DIAGNOSTIC_MESSAGE, &xtext ); if ( xtext != NULL && xtext [ 0 ] == '\0' ) { ldap_memfree( xtext ); xtext = NULL; } ldap_get_option( msc->msc_ld, LDAP_OPT_MATCHED_DN, &xmatched ); if ( xmatched != NULL && xmatched[ 0 ] == '\0' ) { ldap_memfree( xmatched ); xmatched = NULL; } rs->sr_err = slap_map_api2result( rs ); if ( LogTest( LDAP_DEBUG_ANY ) ) { char buf[ SLAP_TEXT_BUFLEN ]; snprintf( buf, sizeof( buf ), "meta_back_op_result[%d] " "err=%d text=\"%s\" matched=\"%s\"", i, rs->sr_err, ( xtext ? xtext : "" ), ( xmatched ? xmatched : "" ) ); Debug( LDAP_DEBUG_ANY, "%s %s.\n", op->o_log_prefix, buf, 0 ); } /* * FIXME: need to rewrite "match" (need rwinfo) */ switch ( rs->sr_err ) { default: err = rs->sr_err; if ( xtext != NULL ) { if ( text ) { ldap_memfree( text ); } text = xtext; xtext = NULL; } if ( xmatched != NULL ) { if ( matched ) { ldap_memfree( matched ); } matched = xmatched; xmatched = NULL; } break; } if ( xtext ) { ldap_memfree( xtext ); } if ( xmatched ) { ldap_memfree( xmatched ); } } if ( META_BACK_TGT_QUARANTINE( mi->mi_targets[ i ] ) ) { meta_back_quarantine( op, rs, i ); } } if ( err != LDAP_SUCCESS ) { rs->sr_err = err; } } if ( matched != NULL ) { struct berval dn, pdn; ber_str2bv( matched, 0, 0, &dn ); if ( dnPretty( NULL, &dn, &pdn, op->o_tmpmemctx ) == LDAP_SUCCESS ) { ldap_memfree( matched ); matched_ctx = op->o_tmpmemctx; matched = pdn.bv_val; } rs->sr_matched = matched; } if ( rs->sr_err == LDAP_UNAVAILABLE ) { if ( !( sendok & LDAP_BACK_RETRYING ) ) { if ( op->o_conn && ( sendok & LDAP_BACK_SENDERR ) ) { if ( rs->sr_text == NULL ) rs->sr_text = "Proxy operation retry failed"; send_ldap_result( op, rs ); } } } else if ( op->o_conn && ( ( ( sendok & LDAP_BACK_SENDOK ) && LDAP_ERR_OK( rs->sr_err ) ) || ( ( sendok & LDAP_BACK_SENDERR ) && !LDAP_ERR_OK( rs->sr_err ) ) ) ) { send_ldap_result( op, rs ); } if ( matched ) { op->o_tmpfree( (char *)rs->sr_matched, matched_ctx ); } if ( text ) { ldap_memfree( text ); } if ( rs->sr_ref ) { op->o_tmpfree( rs->sr_ref, op->o_tmpmemctx ); rs->sr_ref = NULL; } if ( refs ) { ber_memvfree( (void **)refs ); } if ( ctrls ) { assert( rs->sr_ctrls != NULL ); ldap_controls_free( ctrls ); } rs->sr_text = save_text; rs->sr_matched = save_matched; rs->sr_ref = save_ref; rs->sr_ctrls = save_ctrls; return( LDAP_ERR_OK( rs->sr_err ) ? LDAP_SUCCESS : rs->sr_err ); } /* * meta_back_proxy_authz_cred() * * prepares credentials & method for meta_back_proxy_authz_bind(); * or, if method is SASL, performs the SASL bind directly. */ int meta_back_proxy_authz_cred( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok, struct berval *binddn, struct berval *bindcred, int *method ) { 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 ndn; int dobind = 0; /* don't proxyAuthz if protocol is not LDAPv3 */ switch ( mt->mt_version ) { case LDAP_VERSION3: break; case 0: if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) { break; } /* fall thru */ default: rs->sr_err = LDAP_UNWILLING_TO_PERFORM; if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); goto done; } if ( op->o_tag == LDAP_REQ_BIND ) { ndn = op->o_req_ndn; } else if ( !BER_BVISNULL( &op->o_conn->c_ndn ) ) { ndn = op->o_conn->c_ndn; } else { ndn = op->o_ndn; } rs->sr_err = LDAP_SUCCESS; /* * FIXME: we need to let clients use proxyAuthz * otherwise we cannot do symmetric pools of servers; * we have to live with the fact that a user can * authorize itself as any ID that is allowed * by the authzTo directive of the "proxyauthzdn". */ /* * NOTE: current Proxy Authorization specification * and implementation do not allow proxy authorization * control to be provided with Bind requests */ /* * if no bind took place yet, but the connection is bound * and the "proxyauthzdn" is set, then bind as * "proxyauthzdn" and explicitly add the proxyAuthz * control to every operation with the dn bound * to the connection as control value. */ /* bind as proxyauthzdn only if no idassert mode * is requested, or if the client's identity * is authorized */ switch ( mt->mt_idassert_mode ) { case LDAP_BACK_IDASSERT_LEGACY: if ( !BER_BVISNULL( &ndn ) && !BER_BVISEMPTY( &ndn ) ) { if ( !BER_BVISNULL( &mt->mt_idassert_authcDN ) && !BER_BVISEMPTY( &mt->mt_idassert_authcDN ) ) { *binddn = mt->mt_idassert_authcDN; *bindcred = mt->mt_idassert_passwd; dobind = 1; } } break; default: /* NOTE: rootdn can always idassert */ if ( BER_BVISNULL( &ndn ) && mt->mt_idassert_authz == NULL && !( mt->mt_idassert_flags & LDAP_BACK_AUTH_AUTHZ_ALL ) ) { if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) { rs->sr_err = LDAP_INAPPROPRIATE_AUTH; if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); goto done; } rs->sr_err = LDAP_SUCCESS; *binddn = slap_empty_bv; *bindcred = slap_empty_bv; break; } else if ( mt->mt_idassert_authz && !be_isroot( op ) ) { struct berval authcDN; if ( BER_BVISNULL( &ndn ) ) { authcDN = slap_empty_bv; } else { authcDN = ndn; } rs->sr_err = slap_sasl_matches( op, mt->mt_idassert_authz, &authcDN, &authcDN ); if ( rs->sr_err != LDAP_SUCCESS ) { if ( mt->mt_idassert_flags & LDAP_BACK_AUTH_PRESCRIPTIVE ) { if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); goto done; } rs->sr_err = LDAP_SUCCESS; *binddn = slap_empty_bv; *bindcred = slap_empty_bv; break; } } *binddn = mt->mt_idassert_authcDN; *bindcred = mt->mt_idassert_passwd; dobind = 1; break; } if ( dobind && mt->mt_idassert_authmethod == LDAP_AUTH_SASL ) { #ifdef HAVE_CYRUS_SASL void *defaults = NULL; struct berval authzID = BER_BVNULL; int freeauthz = 0; /* if SASL supports native authz, prepare for it */ if ( ( !op->o_do_not_cache || !op->o_is_auth_check ) && ( mt->mt_idassert_flags & LDAP_BACK_AUTH_NATIVE_AUTHZ ) ) { switch ( mt->mt_idassert_mode ) { case LDAP_BACK_IDASSERT_OTHERID: case LDAP_BACK_IDASSERT_OTHERDN: authzID = mt->mt_idassert_authzID; break; case LDAP_BACK_IDASSERT_ANONYMOUS: BER_BVSTR( &authzID, "dn:" ); break; case LDAP_BACK_IDASSERT_SELF: if ( BER_BVISNULL( &ndn ) ) { /* connection is not authc'd, so don't idassert */ BER_BVSTR( &authzID, "dn:" ); break; } authzID.bv_len = STRLENOF( "dn:" ) + ndn.bv_len; authzID.bv_val = slap_sl_malloc( authzID.bv_len + 1, op->o_tmpmemctx ); AC_MEMCPY( authzID.bv_val, "dn:", STRLENOF( "dn:" ) ); AC_MEMCPY( authzID.bv_val + STRLENOF( "dn:" ), ndn.bv_val, ndn.bv_len + 1 ); freeauthz = 1; break; default: break; } } if ( mt->mt_idassert_secprops != NULL ) { rs->sr_err = ldap_set_option( msc->msc_ld, LDAP_OPT_X_SASL_SECPROPS, (void *)mt->mt_idassert_secprops ); if ( rs->sr_err != LDAP_OPT_SUCCESS ) { rs->sr_err = LDAP_OTHER; if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); goto done; } } defaults = lutil_sasl_defaults( msc->msc_ld, mt->mt_idassert_sasl_mech.bv_val, mt->mt_idassert_sasl_realm.bv_val, mt->mt_idassert_authcID.bv_val, mt->mt_idassert_passwd.bv_val, authzID.bv_val ); if ( defaults == NULL ) { rs->sr_err = LDAP_OTHER; LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } goto done; } rs->sr_err = ldap_sasl_interactive_bind_s( msc->msc_ld, binddn->bv_val, mt->mt_idassert_sasl_mech.bv_val, NULL, NULL, LDAP_SASL_QUIET, lutil_sasl_interact, defaults ); rs->sr_err = slap_map_api2result( rs ); if ( rs->sr_err != LDAP_SUCCESS ) { LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } } else { LDAP_BACK_CONN_ISBOUND_SET( msc ); } lutil_sasl_freedefs( defaults ); if ( freeauthz ) { slap_sl_free( authzID.bv_val, op->o_tmpmemctx ); } goto done; #endif /* HAVE_CYRUS_SASL */ } *method = mt->mt_idassert_authmethod; switch ( mt->mt_idassert_authmethod ) { case LDAP_AUTH_NONE: BER_BVSTR( binddn, "" ); BER_BVSTR( bindcred, "" ); /* fallthru */ case LDAP_AUTH_SIMPLE: break; default: /* unsupported! */ LDAP_BACK_CONN_ISBOUND_CLEAR( msc ); rs->sr_err = LDAP_AUTH_METHOD_NOT_SUPPORTED; if ( sendok & LDAP_BACK_SENDERR ) { send_ldap_result( op, rs ); } break; } done:; if ( !BER_BVISEMPTY( binddn ) ) { LDAP_BACK_CONN_ISIDASSERT_SET( msc ); } return rs->sr_err; } static int meta_back_proxy_authz_bind( metaconn_t *mc, int candidate, Operation *op, SlapReply *rs, ldap_back_send_t sendok, int dolock ) { 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 = BER_BVC( "" ), cred = BER_BVC( "" ); int method = LDAP_AUTH_NONE, rc; rc = meta_back_proxy_authz_cred( mc, candidate, op, rs, sendok, &binddn, &cred, &method ); if ( rc == LDAP_SUCCESS && !LDAP_BACK_CONN_ISBOUND( msc ) ) { int msgid; switch ( method ) { case LDAP_AUTH_NONE: case LDAP_AUTH_SIMPLE: if(!dolock) { ldap_pvt_thread_mutex_unlock( &mi->mi_conninfo.lai_mutex ); } for (;;) { rs->sr_err = ldap_sasl_bind( msc->msc_ld, binddn.bv_val, LDAP_SASL_SIMPLE, &cred, NULL, NULL, &msgid ); if ( rs->sr_err != LDAP_X_CONNECTING ) { break; } ldap_pvt_thread_yield(); } if(!dolock) { ldap_pvt_thread_mutex_lock( &mi->mi_conninfo.lai_mutex ); } rc = meta_back_bind_op_result( op, rs, mc, candidate, msgid, sendok, dolock ); if ( rc == LDAP_SUCCESS ) { /* set rebind stuff in case of successful proxyAuthz bind, * so that referral chasing is attempted using the right * identity */ LDAP_BACK_CONN_ISBOUND_SET( msc ); ber_bvreplace( &msc->msc_bound_ndn, &binddn ); if ( META_BACK_TGT_SAVECRED( mt ) ) { if ( !BER_BVISNULL( &msc->msc_cred ) ) { memset( msc->msc_cred.bv_val, 0, msc->msc_cred.bv_len ); } ber_bvreplace( &msc->msc_cred, &cred ); ldap_set_rebind_proc( msc->msc_ld, mt->mt_rebind_f, msc ); } } break; default: assert( 0 ); break; } } return LDAP_BACK_CONN_ISBOUND( msc ); } /* * Add controls; * * if any needs to be added, it is prepended to existing ones, * in a newly allocated array. The companion function * mi->mi_ldap_extra->controls_free() must be used to restore the original * status of op->o_ctrls. */ int meta_back_controls_add( Operation *op, SlapReply *rs, metaconn_t *mc, int candidate, LDAPControl ***pctrls ) { metainfo_t *mi = (metainfo_t *)op->o_bd->be_private; metatarget_t *mt = mi->mi_targets[ candidate ]; metasingleconn_t *msc = &mc->mc_conns[ candidate ]; LDAPControl **ctrls = NULL; /* set to the maximum number of controls this backend can add */ LDAPControl c[ 2 ] = {{ 0 }}; int n = 0, i, j1 = 0, j2 = 0; *pctrls = NULL; rs->sr_err = LDAP_SUCCESS; /* don't add controls if protocol is not LDAPv3 */ switch ( mt->mt_version ) { case LDAP_VERSION3: break; case 0: if ( op->o_protocol == 0 || op->o_protocol == LDAP_VERSION3 ) { break; } /* fall thru */ default: goto done; } /* put controls that go __before__ existing ones here */ /* proxyAuthz for identity assertion */ switch ( mi->mi_ldap_extra->proxy_authz_ctrl( op, rs, &msc->msc_bound_ndn, mt->mt_version, &mt->mt_idassert, &c[ j1 ] ) ) { case SLAP_CB_CONTINUE: break; case LDAP_SUCCESS: j1++; break; default: goto done; } /* put controls that go __after__ existing ones here */ #ifdef SLAP_CONTROL_X_SESSION_TRACKING /* session tracking */ if ( META_BACK_TGT_ST_REQUEST( mt ) ) { switch ( slap_ctrl_session_tracking_request_add( op, rs, &c[ j1 + j2 ] ) ) { case SLAP_CB_CONTINUE: break; case LDAP_SUCCESS: j2++; break; default: goto done; } } #endif /* SLAP_CONTROL_X_SESSION_TRACKING */ if ( rs->sr_err == SLAP_CB_CONTINUE ) { rs->sr_err = LDAP_SUCCESS; } /* if nothing to do, just bail out */ if ( j1 == 0 && j2 == 0 ) { goto done; } assert( j1 + j2 <= (int) (sizeof( c )/sizeof( c[0] )) ); if ( op->o_ctrls ) { for ( n = 0; op->o_ctrls[ n ]; n++ ) /* just count ctrls */ ; } ctrls = op->o_tmpalloc( (n + j1 + j2 + 1) * sizeof( LDAPControl * ) + ( j1 + j2 ) * sizeof( LDAPControl ), op->o_tmpmemctx ); if ( j1 ) { ctrls[ 0 ] = (LDAPControl *)&ctrls[ n + j1 + j2 + 1 ]; *ctrls[ 0 ] = c[ 0 ]; for ( i = 1; i < j1; i++ ) { ctrls[ i ] = &ctrls[ 0 ][ i ]; *ctrls[ i ] = c[ i ]; } } i = 0; if ( op->o_ctrls ) { for ( i = 0; op->o_ctrls[ i ]; i++ ) { ctrls[ i + j1 ] = op->o_ctrls[ i ]; } } n += j1; if ( j2 ) { ctrls[ n ] = (LDAPControl *)&ctrls[ n + j2 + 1 ] + j1; *ctrls[ n ] = c[ j1 ]; for ( i = 1; i < j2; i++ ) { ctrls[ n + i ] = &ctrls[ n ][ i ]; *ctrls[ n + i ] = c[ i ]; } } ctrls[ n + j2 ] = NULL; done:; if ( ctrls == NULL ) { ctrls = op->o_ctrls; } *pctrls = ctrls; return rs->sr_err; }