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/* Copyright (c) 2017 Red Hat, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef OVN_GCHASSIS_H
#define OVN_GCHASSIS_H 1
#include <stdint.h>
#include "lib/uuid.h"
#include "openvswitch/hmap.h"
#include "openvswitch/list.h"
struct ovsdb_idl;
struct ovsdb_idl_index;
struct sbrec_chassis;
struct sbrec_gateway_chassis;
struct sbrec_port_binding;
struct sset;
/* Gateway_Chassis management
* ==========================
*
* The following structure and methods handle ordering of Gateway_Chassis
* entries in a chassisredirect port. And parsing redirect-chassis option
* for backwards compatibility with older (N-1 version of ovn-northd).
*/
struct gateway_chassis {
struct ovs_list node;
const struct sbrec_gateway_chassis *db; /* sbrec row for the gwc */
bool virtual_gwc; /* db entry not from SBDB, but from redirect-chassis */
};
/* Gets, and orders by priority/name the list of Gateway_Chassis */
struct ovs_list *gateway_chassis_get_ordered(
struct ovsdb_idl_index *sbrec_chassis_by_name,
const struct sbrec_port_binding *binding);
/* Checks if an specific chassis is contained in the gateway_chassis
* list */
bool gateway_chassis_contains(const struct ovs_list *gateway_chassis,
const struct sbrec_chassis *chassis);
/* Destroy a gateway_chassis list from memory */
void gateway_chassis_destroy(struct ovs_list *list);
/* Checks if a chassis is referenced in the port_binding gateway_chassis
* list or redirect-chassis option (backwards compatibility) */
bool gateway_chassis_in_pb_contains(
const struct sbrec_port_binding *binding,
const struct sbrec_chassis *chassis);
/* Returns true if the local chassis is the active gateway among a set
* of gateway_chassis. Return false if the local chassis is currently a
* backup in a set of multiple gateway_chassis. */
bool gateway_chassis_is_active(
const struct ovs_list *gateway_chassis,
const struct sbrec_chassis *local_chassis,
const struct sset *active_tunnels);
#endif /* ovn/controller/gchassis.h */
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