bgpd/bgp_addpath.h

   1 /*
   2  * Addpath TX ID selection, and related utilities
   3  * Copyright (C) 2018  Amazon.com, Inc. or its affiliates
   4  *
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License as published by the Free
   7  * Software Foundation; either version 2 of the License, or (at your option)
   8  * any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful, but WITHOUT
  11  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  12  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  13  * more details.
  14  *
  15  * You should have received a copy of the GNU General Public License along
  16  * with this program; see the file COPYING; if not, write to the Free Software
  17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  18  */
  19
  20 #ifndef _QUAGGA_BGPD_TX_ADDPATH_H
  21 #define _QUAGGA_BGPD_TX_ADDPATH_H
  22
  23 #include <stdint.h>
  24 #include <zebra.h>
  25
  26 #include "bgpd/bgp_addpath_types.h"
  27 #include "bgpd/bgp_route.h"
  28 #include "bgpd/bgp_table.h"
  29 #include "lib/json.h"
  30
  31 #define BGP_ADDPATH_TX_ID_FOR_DEFAULT_ORIGINATE 1
  32
  33 void bgp_addpath_init_bgp_data(struct bgp_addpath_bgp_data *d);
  34
  35 int bgp_addpath_is_addpath_used(struct bgp_addpath_bgp_data *d, afi_t afi,
  36                               safi_t safi);
  37
  38 void bgp_addpath_free_node_data(struct bgp_addpath_bgp_data *bd,
  39                               struct bgp_addpath_node_data *nd,
  40                               afi_t afi, safi_t safi);
  41
  42 void bgp_addpath_free_info_data(struct bgp_addpath_info_data *d,
  43                               struct bgp_addpath_node_data *nd);
  44
  45
  46 int bgp_addpath_info_has_ids(struct bgp_addpath_info_data *d);
  47
  48 uint32_t bgp_addpath_id_for_peer(struct peer *peer, afi_t afi, safi_t safi,
  49                                 struct bgp_addpath_info_data *d);
  50
  51 struct bgp_addpath_strategy_names *
  52 bgp_addpath_names(enum bgp_addpath_strat strat);
  53
  54 int bgp_addpath_dmed_required(int strategy);
  55
  56 /*
  57  * Return true if this is a path we should advertise due to a configured
  58  * addpath-tx knob
  59  */
  60 int bgp_addpath_tx_path(enum bgp_addpath_strat strat,
  61                             struct bgp_path_info *pi);
  62 /*
  63  * Change the type of addpath used for a peer.
  64  */
  65 void bgp_addpath_set_peer_type(struct peer *peer, afi_t afi, safi_t safi,
  66                               enum bgp_addpath_strat addpath_type);
  67
  68 void bgp_addpath_update_ids(struct bgp *bgp, struct bgp_node *bn, afi_t afi,
  69                             safi_t safi);
  70
  71 void bgp_addpath_type_changed(struct bgp *bgp);
  72 #endif