Esempio n. 1
0
/*
 * call from within ldap_back_db_open()
 */
int
ldap_back_monitor_db_open( BackendDB *be )
{
	ldapinfo_t		*li = (ldapinfo_t *) be->be_private;
	char			buf[ BACKMONITOR_BUFSIZE ];
	Entry			*e = NULL;
	monitor_callback_t	*cb = NULL;
	struct berval		suffix, *filter, *base;
	char			*ptr;
	time_t			now;
	char			timebuf[ LDAP_LUTIL_GENTIME_BUFSIZE ];
	struct berval 		timestamp;
	int			rc = 0;
	BackendInfo		*mi;
	monitor_extra_t		*mbe;

	if ( !SLAP_DBMONITORING( be ) ) {
		return 0;
	}

	/* check if monitor is configured and usable */
	mi = backend_info( "monitor" );
	if ( !mi || !mi->bi_extra ) {
		SLAP_DBFLAGS( be ) ^= SLAP_DBFLAG_MONITORING;
		return 0;
 	}
 	mbe = mi->bi_extra;

	/* don't bother if monitor is not configured */
	if ( !mbe->is_configured() ) {
		static int warning = 0;

		if ( warning++ == 0 ) {
			Debug( LDAP_DEBUG_ANY, "ldap_back_monitor_db_open: "
				"monitoring disabled; "
				"configure monitor database to enable\n",
				0, 0, 0 );
		}

		return 0;
	}

	/* set up the fake subsystem that is used to create
	 * the volatile connection entries */
	li->li_monitor_info.lmi_mss.mss_name = "back-ldap";
	li->li_monitor_info.lmi_mss.mss_flags = MONITOR_F_VOLATILE_CH;
	li->li_monitor_info.lmi_mss.mss_create = ldap_back_monitor_conn_create;

	li->li_monitor_info.lmi_li = li;
	li->li_monitor_info.lmi_scope = LDAP_SCOPE_SUBORDINATE;
	base = &li->li_monitor_info.lmi_base;
	BER_BVSTR( base, "cn=databases,cn=monitor" );
	filter = &li->li_monitor_info.lmi_filter;
	BER_BVZERO( filter );

	suffix.bv_len = ldap_bv2escaped_filter_value_len( &be->be_nsuffix[ 0 ] );
	if ( suffix.bv_len == be->be_nsuffix[ 0 ].bv_len ) {
		suffix = be->be_nsuffix[ 0 ];

	} else {
		ldap_bv2escaped_filter_value( &be->be_nsuffix[ 0 ], &suffix );
	}
	
	filter->bv_len = STRLENOF( "(&" )
		+ li->li_monitor_info.lmi_more_filter.bv_len
		+ STRLENOF( "(monitoredInfo=" )
		+ strlen( be->bd_info->bi_type )
		+ STRLENOF( ")(!(monitorOverlay=" )
		+ strlen( be->bd_info->bi_type )
		+ STRLENOF( "))(namingContexts:distinguishedNameMatch:=" )
		+ suffix.bv_len + STRLENOF( "))" );
	ptr = filter->bv_val = ch_malloc( filter->bv_len + 1 );
	ptr = lutil_strcopy( ptr, "(&" );
	ptr = lutil_strncopy( ptr, li->li_monitor_info.lmi_more_filter.bv_val,
		li->li_monitor_info.lmi_more_filter.bv_len );
	ptr = lutil_strcopy( ptr, "(monitoredInfo=" );
	ptr = lutil_strcopy( ptr, be->bd_info->bi_type );
	ptr = lutil_strcopy( ptr, ")(!(monitorOverlay=" );
	ptr = lutil_strcopy( ptr, be->bd_info->bi_type );
	ptr = lutil_strcopy( ptr, "))(namingContexts:distinguishedNameMatch:=" );
	ptr = lutil_strncopy( ptr, suffix.bv_val, suffix.bv_len );
	ptr = lutil_strcopy( ptr, "))" );
	ptr[ 0 ] = '\0';
	assert( ptr == &filter->bv_val[ filter->bv_len ] );

	if ( suffix.bv_val != be->be_nsuffix[ 0 ].bv_val ) {
		ch_free( suffix.bv_val );
	}

	now = slap_get_time();
	timestamp.bv_val = timebuf;
	timestamp.bv_len = sizeof( timebuf );
	slap_timestamp( &now, &timestamp );

	/* caller (e.g. an overlay based on back-ldap) may want to use
	 * a different RDN... */
	if ( BER_BVISNULL( &li->li_monitor_info.lmi_rdn ) ) {
		ber_str2bv( "cn=Connections", 0, 1, &li->li_monitor_info.lmi_rdn );
	}

	ptr = ber_bvchr( &li->li_monitor_info.lmi_rdn, '=' );
	assert( ptr != NULL );
	ptr[ 0 ] = '\0';
	ptr++;

	snprintf( buf, sizeof( buf ),
		"dn: %s=%s\n"
		"objectClass: monitorContainer\n"
		"%s: %s\n"
		"creatorsName: %s\n"
		"createTimestamp: %s\n"
		"modifiersName: %s\n"
		"modifyTimestamp: %s\n",
		li->li_monitor_info.lmi_rdn.bv_val,
			ptr,
		li->li_monitor_info.lmi_rdn.bv_val,
			ptr,
		BER_BVISNULL( &be->be_rootdn ) ? SLAPD_ANONYMOUS : be->be_rootdn.bv_val,
		timestamp.bv_val,
		BER_BVISNULL( &be->be_rootdn ) ? SLAPD_ANONYMOUS : be->be_rootdn.bv_val,
		timestamp.bv_val );
	e = str2entry( buf );
	if ( e == NULL ) {
		rc = -1;
		goto cleanup;
	}

	ptr[ -1 ] = '=';

	/* add labeledURI and special, modifiable URI value */
	if ( li->li_uri != NULL ) {
		struct berval	bv;
		LDAPURLDesc	*ludlist = NULL;
		int		rc;

		rc = ldap_url_parselist_ext( &ludlist,
			li->li_uri, NULL,
			LDAP_PVT_URL_PARSE_NOEMPTY_HOST
				| LDAP_PVT_URL_PARSE_DEF_PORT );
		if ( rc != LDAP_URL_SUCCESS ) {
			Debug( LDAP_DEBUG_ANY,
				"ldap_back_monitor_db_open: "
				"unable to parse URI list (ignored)\n",
				0, 0, 0 );
		} else {
			for ( ; ludlist != NULL; ) {
				LDAPURLDesc	*next = ludlist->lud_next;

				bv.bv_val = ldap_url_desc2str( ludlist );
				assert( bv.bv_val != NULL );
				ldap_free_urldesc( ludlist );
				bv.bv_len = strlen( bv.bv_val );
				attr_merge_normalize_one( e, slap_schema.si_ad_labeledURI,
					&bv, NULL );
				ch_free( bv.bv_val );

				ludlist = next;
			}
		}
		
		ber_str2bv( li->li_uri, 0, 0, &bv );
		attr_merge_normalize_one( e, ad_olmDbURIList,
			&bv, NULL );
	}

	ber_dupbv( &li->li_monitor_info.lmi_nrdn, &e->e_nname );

	cb = ch_calloc( sizeof( monitor_callback_t ), 1 );
	cb->mc_update = ldap_back_monitor_update;
	cb->mc_modify = ldap_back_monitor_modify;
	cb->mc_free = ldap_back_monitor_free;
	cb->mc_private = (void *)li;

	rc = mbe->register_entry_parent( e, cb,
		(monitor_subsys_t *)&li->li_monitor_info,
		MONITOR_F_VOLATILE_CH,
		base, LDAP_SCOPE_SUBORDINATE, filter );

cleanup:;
	if ( rc != 0 ) {
		if ( cb != NULL ) {
			ch_free( cb );
			cb = NULL;
		}

		if ( e != NULL ) {
			entry_free( e );
			e = NULL;
		}

		if ( !BER_BVISNULL( filter ) ) {
			ch_free( filter->bv_val );
			BER_BVZERO( filter );
		}
	}

	/* store for cleanup */
	li->li_monitor_info.lmi_cb = (void *)cb;

	if ( e != NULL ) {
		entry_free( e );
	}

	return rc;
}
Esempio n. 2
0
int
ldap_set_option(
	LDAP	*ld,
	int		option,
	LDAP_CONST void	*invalue)
{
	struct ldapoptions *lo;
	int *dbglvl = NULL;
	int rc = LDAP_OPT_ERROR;

	/* Get pointer to global option structure */
	lo = LDAP_INT_GLOBAL_OPT();
	if (lo == NULL)	{
		return LDAP_NO_MEMORY;
	}

	/*
	 * The architecture to turn on debugging has a chicken and egg
	 * problem. Thus, we introduce a fix here.
	 */

	if (option == LDAP_OPT_DEBUG_LEVEL) {
		dbglvl = (int *) invalue;
	}

	if( lo->ldo_valid != LDAP_INITIALIZED ) {
		ldap_int_initialize(lo, dbglvl);
		if ( lo->ldo_valid != LDAP_INITIALIZED )
			return LDAP_LOCAL_ERROR;
	}

	if(ld != NULL) {
		assert( LDAP_VALID( ld ) );

		if( !LDAP_VALID( ld ) ) {
			return LDAP_OPT_ERROR;
		}

		lo = &ld->ld_options;
	}

	LDAP_MUTEX_LOCK( &lo->ldo_mutex );

	switch ( option ) {

	/* options with boolean values */
	case LDAP_OPT_REFERRALS:
		if(invalue == LDAP_OPT_OFF) {
			LDAP_BOOL_CLR(lo, LDAP_BOOL_REFERRALS);
		} else {
			LDAP_BOOL_SET(lo, LDAP_BOOL_REFERRALS);
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_RESTART:
		if(invalue == LDAP_OPT_OFF) {
			LDAP_BOOL_CLR(lo, LDAP_BOOL_RESTART);
		} else {
			LDAP_BOOL_SET(lo, LDAP_BOOL_RESTART);
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_CONNECT_ASYNC:
		if(invalue == LDAP_OPT_OFF) {
			LDAP_BOOL_CLR(lo, LDAP_BOOL_CONNECT_ASYNC);
		} else {
			LDAP_BOOL_SET(lo, LDAP_BOOL_CONNECT_ASYNC);
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	/* options which can withstand invalue == NULL */
	case LDAP_OPT_SERVER_CONTROLS: {
			LDAPControl *const *controls =
				(LDAPControl *const *) invalue;

			if( lo->ldo_sctrls )
				ldap_controls_free( lo->ldo_sctrls );

			if( controls == NULL || *controls == NULL ) {
				lo->ldo_sctrls = NULL;
				rc = LDAP_OPT_SUCCESS;
				break;
			}
				
			lo->ldo_sctrls = ldap_controls_dup( controls );

			if(lo->ldo_sctrls == NULL) {
				/* memory allocation error ? */
				break;	/* LDAP_OPT_ERROR */
			}
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_CLIENT_CONTROLS: {
			LDAPControl *const *controls =
				(LDAPControl *const *) invalue;

			if( lo->ldo_cctrls )
				ldap_controls_free( lo->ldo_cctrls );

			if( controls == NULL || *controls == NULL ) {
				lo->ldo_cctrls = NULL;
				rc = LDAP_OPT_SUCCESS;
				break;
			}
				
			lo->ldo_cctrls = ldap_controls_dup( controls );

			if(lo->ldo_cctrls == NULL) {
				/* memory allocation error ? */
				break;	/* LDAP_OPT_ERROR */
			}
		}
		rc = LDAP_OPT_SUCCESS;
		break;


	case LDAP_OPT_HOST_NAME: {
			const char *host = (const char *) invalue;
			LDAPURLDesc *ludlist = NULL;
			rc = LDAP_OPT_SUCCESS;

			if(host != NULL) {
				rc = ldap_url_parsehosts( &ludlist, host,
					lo->ldo_defport ? lo->ldo_defport : LDAP_PORT );

			} else if(ld == NULL) {
				/*
				 * must want global default returned
				 * to initial condition.
				 */
				rc = ldap_url_parselist_ext(&ludlist, "ldap://localhost/", NULL,
					LDAP_PVT_URL_PARSE_NOEMPTY_HOST
					| LDAP_PVT_URL_PARSE_DEF_PORT );

			} else {
				/*
				 * must want the session default
				 *   updated to the current global default
				 */
				ludlist = ldap_url_duplist(
					ldap_int_global_options.ldo_defludp);
				if (ludlist == NULL)
					rc = LDAP_NO_MEMORY;
			}

			if (rc == LDAP_OPT_SUCCESS) {
				if (lo->ldo_defludp != NULL)
					ldap_free_urllist(lo->ldo_defludp);
				lo->ldo_defludp = ludlist;
			}
			break;
		}

	case LDAP_OPT_URI: {
			const char *urls = (const char *) invalue;
			LDAPURLDesc *ludlist = NULL;
			rc = LDAP_OPT_SUCCESS;

			if(urls != NULL) {
				rc = ldap_url_parselist_ext(&ludlist, urls, NULL,
					LDAP_PVT_URL_PARSE_NOEMPTY_HOST
					| LDAP_PVT_URL_PARSE_DEF_PORT );
			} else if(ld == NULL) {
				/*
				 * must want global default returned
				 * to initial condition.
				 */
				rc = ldap_url_parselist_ext(&ludlist, "ldap://localhost/", NULL,
					LDAP_PVT_URL_PARSE_NOEMPTY_HOST
					| LDAP_PVT_URL_PARSE_DEF_PORT );

			} else {
				/*
				 * must want the session default
				 *   updated to the current global default
				 */
				ludlist = ldap_url_duplist(
					ldap_int_global_options.ldo_defludp);
				if (ludlist == NULL)
					rc = LDAP_URL_ERR_MEM;
			}

			switch (rc) {
			case LDAP_URL_SUCCESS:		/* Success */
				rc = LDAP_SUCCESS;
				break;

			case LDAP_URL_ERR_MEM:		/* can't allocate memory space */
				rc = LDAP_NO_MEMORY;
				break;

			case LDAP_URL_ERR_PARAM:	/* parameter is bad */
			case LDAP_URL_ERR_BADSCHEME:	/* URL doesn't begin with "ldap[si]://" */
			case LDAP_URL_ERR_BADENCLOSURE:	/* URL is missing trailing ">" */
			case LDAP_URL_ERR_BADURL:	/* URL is bad */
			case LDAP_URL_ERR_BADHOST:	/* host port is bad */
			case LDAP_URL_ERR_BADATTRS:	/* bad (or missing) attributes */
			case LDAP_URL_ERR_BADSCOPE:	/* scope string is invalid (or missing) */
			case LDAP_URL_ERR_BADFILTER:	/* bad or missing filter */
			case LDAP_URL_ERR_BADEXTS:	/* bad or missing extensions */
				rc = LDAP_PARAM_ERROR;
				break;
			}

			if (rc == LDAP_SUCCESS) {
				if (lo->ldo_defludp != NULL)
					ldap_free_urllist(lo->ldo_defludp);
				lo->ldo_defludp = ludlist;
			}
			break;
		}

	case LDAP_OPT_DEFBASE: {
			const char *newbase = (const char *) invalue;
			char *defbase = NULL;

			if ( newbase != NULL ) {
				defbase = LDAP_STRDUP( newbase );
				if ( defbase == NULL ) {
					rc = LDAP_NO_MEMORY;
					break;
				}

			} else if ( ld != NULL ) {
				defbase = LDAP_STRDUP( ldap_int_global_options.ldo_defbase );
				if ( defbase == NULL ) {
					rc = LDAP_NO_MEMORY;
					break;
				}
			}
			
			if ( lo->ldo_defbase != NULL )
				LDAP_FREE( lo->ldo_defbase );
			lo->ldo_defbase = defbase;
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_DIAGNOSTIC_MESSAGE: {
			const char *err = (const char *) invalue;

			if(ld == NULL) {
				/* need a struct ldap */
				break;	/* LDAP_OPT_ERROR */
			}

			if( ld->ld_error ) {
				LDAP_FREE(ld->ld_error);
				ld->ld_error = NULL;
			}

			if ( err ) {
				ld->ld_error = LDAP_STRDUP(err);
			}
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_MATCHED_DN: {
			const char *matched = (const char *) invalue;

			if (ld == NULL) {
				/* need a struct ldap */
				break;	/* LDAP_OPT_ERROR */
			}

			if( ld->ld_matched ) {
				LDAP_FREE(ld->ld_matched);
				ld->ld_matched = NULL;
			}

			if ( matched ) {
				ld->ld_matched = LDAP_STRDUP( matched );
			}
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_REFERRAL_URLS: {
			char *const *referrals = (char *const *) invalue;
			
			if(ld == NULL) {
				/* need a struct ldap */
				break;	/* LDAP_OPT_ERROR */
			}

			if( ld->ld_referrals ) {
				LDAP_VFREE(ld->ld_referrals);
			}

			if ( referrals ) {
				ld->ld_referrals = ldap_value_dup(referrals);
			}
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	/* Only accessed from inside this function by ldap_set_rebind_proc() */
	case LDAP_OPT_REBIND_PROC: {
			lo->ldo_rebind_proc = (LDAP_REBIND_PROC *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_REBIND_PARAMS: {
			lo->ldo_rebind_params = (void *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	/* Only accessed from inside this function by ldap_set_nextref_proc() */
	case LDAP_OPT_NEXTREF_PROC: {
			lo->ldo_nextref_proc = (LDAP_NEXTREF_PROC *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_NEXTREF_PARAMS: {
			lo->ldo_nextref_params = (void *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	/* Only accessed from inside this function by ldap_set_urllist_proc() */
	case LDAP_OPT_URLLIST_PROC: {
			lo->ldo_urllist_proc = (LDAP_URLLIST_PROC *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_URLLIST_PARAMS: {
			lo->ldo_urllist_params = (void *)invalue;		
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	/* read-only options */
	case LDAP_OPT_API_INFO:
	case LDAP_OPT_DESC:
	case LDAP_OPT_SOCKBUF:
	case LDAP_OPT_API_FEATURE_INFO:
		break;	/* LDAP_OPT_ERROR */

	/* options which cannot withstand invalue == NULL */
	case LDAP_OPT_DEREF:
	case LDAP_OPT_SIZELIMIT:
	case LDAP_OPT_TIMELIMIT:
	case LDAP_OPT_PROTOCOL_VERSION:
	case LDAP_OPT_RESULT_CODE:
	case LDAP_OPT_DEBUG_LEVEL:
	case LDAP_OPT_TIMEOUT:
	case LDAP_OPT_NETWORK_TIMEOUT:
	case LDAP_OPT_CONNECT_CB:
	case LDAP_OPT_X_KEEPALIVE_IDLE:
	case LDAP_OPT_X_KEEPALIVE_PROBES :
	case LDAP_OPT_X_KEEPALIVE_INTERVAL :
		if(invalue == NULL) {
			/* no place to set from */
			LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
			return ( LDAP_OPT_ERROR );
		}
		break;

	default:
#ifdef HAVE_TLS
		if ( ldap_pvt_tls_set_option( ld, option, (void *)invalue ) == 0 ) {
			LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
			return ( LDAP_OPT_SUCCESS );
		}
#endif
#ifdef HAVE_CYRUS_SASL
		if ( ldap_int_sasl_set_option( ld, option, (void *)invalue ) == 0 ) {
			LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
			return ( LDAP_OPT_SUCCESS );
		}
#endif
#ifdef HAVE_GSSAPI
		if ( ldap_int_gssapi_set_option( ld, option, (void *)invalue ) == 0 ) {
			LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
			return ( LDAP_OPT_SUCCESS );
		}
#endif
		/* bad param */
		break;	/* LDAP_OPT_ERROR */
	}

	/* options which cannot withstand invalue == NULL */

	switch(option) {
	case LDAP_OPT_DEREF:
		/* FIXME: check value for protocol compliance? */
		lo->ldo_deref = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_SIZELIMIT:
		/* FIXME: check value for protocol compliance? */
		lo->ldo_sizelimit = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_TIMELIMIT:
		/* FIXME: check value for protocol compliance? */
		lo->ldo_timelimit = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_TIMEOUT: {
			const struct timeval *tv = 
				(const struct timeval *) invalue;

			lo->ldo_tm_api = *tv;
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_NETWORK_TIMEOUT: {
			const struct timeval *tv = 
				(const struct timeval *) invalue;

			lo->ldo_tm_net = *tv;
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_PROTOCOL_VERSION: {
			int vers = * (const int *) invalue;
			if (vers < LDAP_VERSION_MIN || vers > LDAP_VERSION_MAX) {
				/* not supported */
				break;
			}
			lo->ldo_version = vers;
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_RESULT_CODE: {
			int err = * (const int *) invalue;

			if(ld == NULL) {
				/* need a struct ldap */
				break;
			}

			ld->ld_errno = err;
		}
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_DEBUG_LEVEL:
		lo->ldo_debug = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;

	case LDAP_OPT_CONNECT_CB:
		{
			/* setting pushes the callback */
			ldaplist *ll;
			ll = LDAP_MALLOC( sizeof( *ll ));
			ll->ll_data = (void *)invalue;
			ll->ll_next = lo->ldo_conn_cbs;
			lo->ldo_conn_cbs = ll;
		}
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_X_KEEPALIVE_IDLE:
		lo->ldo_keepalive_idle = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_X_KEEPALIVE_PROBES :
		lo->ldo_keepalive_probes = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;
	case LDAP_OPT_X_KEEPALIVE_INTERVAL :
		lo->ldo_keepalive_interval = * (const int *) invalue;
		rc = LDAP_OPT_SUCCESS;
		break;
	
	}
	LDAP_MUTEX_UNLOCK( &lo->ldo_mutex );
	return ( rc );
}
Esempio n. 3
0
static int
ldap_back_monitor_modify(
	Operation	*op,
	SlapReply	*rs,
	Entry		*e,
	void		*priv )
{
	ldapinfo_t		*li = (ldapinfo_t *) priv;
	
	Attribute		*save_attrs = NULL;
	Modifications		*ml,
				*ml_olmDbURIList = NULL;
	struct berval		ul = BER_BVNULL;
	int			got = 0;

	for ( ml = op->orm_modlist; ml; ml = ml->sml_next ) {
		if ( ml->sml_desc == ad_olmDbURIList ) {
			if ( ml_olmDbURIList != NULL ) {
				rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
				rs->sr_text = "conflicting modifications";
				goto done;
			}

			if ( ml->sml_op != LDAP_MOD_REPLACE ) {
				rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
				rs->sr_text = "modification not allowed";
				goto done;
			}

			ml_olmDbURIList = ml;
			got++;
			continue;
		}
	}

	if ( got == 0 ) {
		return SLAP_CB_CONTINUE;
	}

	save_attrs = attrs_dup( e->e_attrs );

	if ( ml_olmDbURIList != NULL ) {
		Attribute	*a = NULL;
		LDAPURLDesc	*ludlist = NULL;
		int		rc;

		ml = ml_olmDbURIList;
		assert( ml->sml_nvalues != NULL );

		if ( BER_BVISNULL( &ml->sml_nvalues[ 0 ] ) ) {
			rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
			rs->sr_text = "no value provided";
			goto done;
		}

		if ( !BER_BVISNULL( &ml->sml_nvalues[ 1 ] ) ) {
			rs->sr_err = LDAP_CONSTRAINT_VIOLATION;
			rs->sr_text = "multiple values provided";
			goto done;
		}

		rc = ldap_url_parselist_ext( &ludlist,
			ml->sml_nvalues[ 0 ].bv_val, NULL,
			LDAP_PVT_URL_PARSE_NOEMPTY_HOST
				| LDAP_PVT_URL_PARSE_DEF_PORT );
		if ( rc != LDAP_URL_SUCCESS ) {
			rs->sr_err = LDAP_INVALID_SYNTAX;
			rs->sr_text = "unable to parse URI list";
			goto done;
		}

		ul.bv_val = ldap_url_list2urls( ludlist );
		ldap_free_urllist( ludlist );
		if ( ul.bv_val == NULL ) {
			rs->sr_err = LDAP_OTHER;
			goto done;
		}
		ul.bv_len = strlen( ul.bv_val );
		
		a = attr_find( e->e_attrs, ad_olmDbURIList );
		if ( a != NULL ) {
			if ( a->a_nvals == a->a_vals ) {
				a->a_nvals = ch_calloc( sizeof( struct berval ), 2 );
			}

			ber_bvreplace( &a->a_vals[ 0 ], &ul );
			ber_bvreplace( &a->a_nvals[ 0 ], &ul );

		} else {
			attr_merge_normalize_one( e, ad_olmDbURIList, &ul, NULL );
		}
	}

	/* apply changes */
	if ( !BER_BVISNULL( &ul ) ) {
		ldap_pvt_thread_mutex_lock( &li->li_uri_mutex );
		if ( li->li_uri ) {
			ch_free( li->li_uri );
		}
		li->li_uri = ul.bv_val;
		ldap_pvt_thread_mutex_unlock( &li->li_uri_mutex );

		BER_BVZERO( &ul );
	}

done:;
	if ( !BER_BVISNULL( &ul ) ) {
		ldap_memfree( ul.bv_val );
	}

	if ( rs->sr_err == LDAP_SUCCESS ) {
		attrs_free( save_attrs );
		return SLAP_CB_CONTINUE;
	}

	attrs_free( e->e_attrs );
	e->e_attrs = save_attrs;

	return rs->sr_err;
}