Line data    Source code

       1             : /*
       2             :  * Zebra neighbor table management
       3             :  *
       4             :  * Copyright (C) 2021 Nvidia
       5             :  * Anuradha Karuppiah
       6             :  *
       7             :  * This file is part of FRR.
       8             :  *
       9             :  * FRR is free software; you can redistribute it and/or modify it
      10             :  * under the terms of the GNU General Public License as published by the
      11             :  * Free Software Foundation; either version 2, or (at your option) any
      12             :  * later version.
      13             :  *
      14             :  * FRR is distributed in the hope that it will be useful, but
      15             :  * WITHOUT ANY WARRANTY; without even the implied warranty of
      16             :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
      17             :  * General Public License for more details.
      18             :  */
      19             : 
      20             : #ifndef _ZEBRA_NEIGH_H
      21             : #define _ZEBRA_NEIGH_H
      22             : 
      23             : #include <zebra.h>
      24             : 
      25             : #include "if.h"
      26             : 
      27             : #define zneigh_info zrouter.neigh_info
      28             : 
      29             : struct zebra_neigh_ent {
      30             :         ifindex_t ifindex;
      31             :         struct ipaddr ip;
      32             : 
      33             :         struct ethaddr mac;
      34             : 
      35             :         uint32_t flags;
      36             : #define ZEBRA_NEIGH_ENT_ACTIVE (1 << 0) /* can be used for traffic */
      37             : 
      38             :         /* memory used for adding the neigt entry to zneigh_info->es_rb_tree */
      39             :         RB_ENTRY(zebra_neigh_ent) rb_node;
      40             : 
      41             :         /* list of pbr rules associated with this neigh */
      42             :         struct list *pbr_rule_list;
      43             : };
      44             : RB_HEAD(zebra_neigh_rb_head, zebra_neigh_ent);
      45          28 : RB_PROTOTYPE(zebra_neigh_rb_head, zebra_neigh_ent, rb_node, zebra_es_rb_cmp);
      46             : 
      47             : struct zebra_neigh_info {
      48             :         /* RB tree of neighbor entries  */
      49             :         struct zebra_neigh_rb_head neigh_rb_tree;
      50             : };
      51             : 
      52             : 
      53             : /****************************************************************************/
      54             : extern void zebra_neigh_add(struct interface *ifp, struct ipaddr *ip,
      55             :                             struct ethaddr *mac);
      56             : extern void zebra_neigh_del(struct interface *ifp, struct ipaddr *ip);
      57             : extern void zebra_neigh_show(struct vty *vty);
      58             : extern void zebra_neigh_init(void);
      59             : extern void zebra_neigh_terminate(void);
      60             : extern void zebra_neigh_deref(struct zebra_pbr_rule *rule);
      61             : extern void zebra_neigh_ref(int ifindex, struct ipaddr *ip,
      62             :                             struct zebra_pbr_rule *rule);
      63             : 
      64             : #endif /* _ZEBRA_NEIGH_H */