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/*
* Copyright (C) 2020 NetDEF, Inc.
* Renato Westphal
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the Free
* Software Foundation; either version 2 of the License, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; see the file COPYING; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _LDPD_RLFA_H_
#define _LDPD_RLFA_H_
#include "openbsd-tree.h"
#include "zclient.h"
struct ldp_rlfa_client {
RB_ENTRY(ldp_rlfa_client) entry;
/* IGP instance data. */
struct zapi_rlfa_igp igp;
/* Backpointer to RLFA node. */
struct ldp_rlfa_node *node;
};
RB_HEAD(ldp_rlfa_client_head, ldp_rlfa_client);
RB_PROTOTYPE(ldp_rlfa_client_head, ldp_rlfa_client, entry,
ldp_rlfa_client_compare);
struct ldp_rlfa_node {
RB_ENTRY(ldp_rlfa_node) entry;
/* Destination prefix. */
struct prefix destination;
/* PQ node address. */
struct in_addr pq_address;
/* RLFA clients. */
struct ldp_rlfa_client_head clients;
/* Label allocated by the PQ node to the RLFA destination. */
mpls_label_t pq_label;
};
RB_HEAD(ldp_rlfa_node_head, ldp_rlfa_node);
RB_PROTOTYPE(ldp_rlfa_node_head, ldp_rlfa_node, entry, ldp_rlfa_node_compare);
extern struct ldp_rlfa_node_head rlfa_node_tree;
/* prototypes */
struct ldp_rlfa_client *rlfa_client_new(struct ldp_rlfa_node *rnode,
struct zapi_rlfa_igp *igp);
void rlfa_client_del(struct ldp_rlfa_client *rclient);
struct ldp_rlfa_client *rlfa_client_find(struct ldp_rlfa_node *rnode,
struct zapi_rlfa_igp *igp);
struct ldp_rlfa_node *rlfa_node_new(const struct prefix *destination,
struct in_addr pq_address);
void rlfa_node_del(struct ldp_rlfa_node *rnode);
struct ldp_rlfa_node *rlfa_node_find(const struct prefix *destination,
struct in_addr pq_address);
void lde_rlfa_check(struct ldp_rlfa_client *rclient);
void lde_rlfa_client_send(struct ldp_rlfa_client *rclient);
void lde_rlfa_label_update(const struct fec *fec);
void lde_rlfa_update_clients(struct fec *fec, struct lde_nbr *ln,
uint32_t label);
void ldpe_rlfa_init(struct ldp_rlfa_client *rclient);
void ldpe_rlfa_exit(struct ldp_rlfa_client *rclient);
#endif /* _LDPD_RLFA_H_ */
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