zebra/zebra_neigh.h

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Zebra neighbor table management
   4  *
   5  * Copyright (C) 2021 Nvidia
   6  * Anuradha Karuppiah
   7  */
   8
   9 #ifndef _ZEBRA_NEIGH_H
  10 #define _ZEBRA_NEIGH_H
  11
  12 #include <zebra.h>
  13
  14 #include "if.h"
  15
  16 #define zneigh_info zrouter.neigh_info
  17
  18 struct zebra_neigh_ent {
  19         ifindex_t ifindex;
  20         struct ipaddr ip;
  21
  22         struct ethaddr mac;
  23
  24         uint32_t flags;
  25 #define ZEBRA_NEIGH_ENT_ACTIVE (1 << 0) /* can be used for traffic */
  26
  27         /* memory used for adding the neigt entry to zneigh_info->es_rb_tree */
  28         RB_ENTRY(zebra_neigh_ent) rb_node;
  29
  30         /* list of pbr rules associated with this neigh */
  31         struct list *pbr_rule_list;
  32 };
  33 RB_HEAD(zebra_neigh_rb_head, zebra_neigh_ent);
  34 RB_PROTOTYPE(zebra_neigh_rb_head, zebra_neigh_ent, rb_node, zebra_es_rb_cmp);
  35
  36 struct zebra_neigh_info {
  37         /* RB tree of neighbor entries  */
  38         struct zebra_neigh_rb_head neigh_rb_tree;
  39 };
  40
  41
  42 /****************************************************************************/
  43 extern void zebra_neigh_add(struct interface *ifp, struct ipaddr *ip,
  44                             struct ethaddr *mac);
  45 extern void zebra_neigh_del(struct interface *ifp, struct ipaddr *ip);
  46 extern void zebra_neigh_show(struct vty *vty);
  47 extern void zebra_neigh_init(void);
  48 extern void zebra_neigh_terminate(void);
  49 extern void zebra_neigh_deref(struct zebra_pbr_rule *rule);
  50 extern void zebra_neigh_ref(int ifindex, struct ipaddr *ip,
  51                             struct zebra_pbr_rule *rule);
  52
  53 #endif /* _ZEBRA_NEIGH_H */