ldpd/rlfa.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright (C) 2020  NetDEF, Inc.
   4  *                     Renato Westphal
   5  */
   6
   7 #ifndef _LDPD_RLFA_H_
   8 #define _LDPD_RLFA_H_
   9
  10 #include "openbsd-tree.h"
  11 #include "zclient.h"
  12
  13 struct ldp_rlfa_client {
  14         RB_ENTRY(ldp_rlfa_client) entry;
  15
  16         /* IGP instance data. */
  17         struct zapi_rlfa_igp igp;
  18
  19         /* Backpointer to RLFA node. */
  20         struct ldp_rlfa_node *node;
  21 };
  22 RB_HEAD(ldp_rlfa_client_head, ldp_rlfa_client);
  23 RB_PROTOTYPE(ldp_rlfa_client_head, ldp_rlfa_client, entry,
  24              ldp_rlfa_client_compare);
  25
  26 struct ldp_rlfa_node {
  27         RB_ENTRY(ldp_rlfa_node) entry;
  28
  29         /* Destination prefix. */
  30         struct prefix destination;
  31
  32         /* PQ node address. */
  33         struct in_addr pq_address;
  34
  35         /* RLFA clients. */
  36         struct ldp_rlfa_client_head clients;
  37
  38         /* Label allocated by the PQ node to the RLFA destination. */
  39         mpls_label_t pq_label;
  40 };
  41 RB_HEAD(ldp_rlfa_node_head, ldp_rlfa_node);
  42 RB_PROTOTYPE(ldp_rlfa_node_head, ldp_rlfa_node, entry, ldp_rlfa_node_compare);
  43
  44 extern struct ldp_rlfa_node_head rlfa_node_tree;
  45
  46 /* prototypes */
  47 struct           ldp_rlfa_client *rlfa_client_new(struct ldp_rlfa_node *rnode,
  48                     struct zapi_rlfa_igp *igp);
  49 void             rlfa_client_del(struct ldp_rlfa_client *rclient);
  50 struct ldp_rlfa_client *rlfa_client_find(struct ldp_rlfa_node *rnode,
  51                     struct zapi_rlfa_igp *igp);
  52 struct ldp_rlfa_node *rlfa_node_new(const struct prefix *destination,
  53                     struct in_addr pq_address);
  54 void rlfa_node_del(struct ldp_rlfa_node *rnode);
  55 struct ldp_rlfa_node *rlfa_node_find(const struct prefix *destination,
  56                     struct in_addr pq_address);
  57 void             lde_rlfa_check(struct ldp_rlfa_client *rclient);
  58 void             lde_rlfa_client_send(struct ldp_rlfa_client *rclient);
  59 void             lde_rlfa_label_update(const struct fec *fec);
  60 void             lde_rlfa_update_clients(struct fec *fec, struct lde_nbr *ln,
  61                     uint32_t label);
  62 void             ldpe_rlfa_init(struct ldp_rlfa_client *rclient);
  63 void             ldpe_rlfa_exit(struct ldp_rlfa_client *rclient);
  64
  65 #endif /* _LDPD_RLFA_H_ */